CN107859778B - Intelligent pressure reducing valve integrating power generation and data acquisition functions - Google Patents

Intelligent pressure reducing valve integrating power generation and data acquisition functions Download PDF

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Publication number
CN107859778B
CN107859778B CN201711034721.4A CN201711034721A CN107859778B CN 107859778 B CN107859778 B CN 107859778B CN 201711034721 A CN201711034721 A CN 201711034721A CN 107859778 B CN107859778 B CN 107859778B
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power generation
pressure reducing
data acquisition
reducing valve
assembly
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CN107859778A (en
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黄靖
谢爱华
唐金鹏
欧立涛
齐浩
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ZHUZHOU SOUTHERN VALVE CO Ltd
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ZHUZHOU SOUTHERN VALVE CO Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
    • F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Hydraulic Turbines (AREA)

Abstract

The invention relates to the technical field of valves, and discloses an intelligent pressure reducing valve integrating power generation and data acquisition functions, which comprises a power generation device, a data acquisition assembly and a display terminal, wherein the power generation device is connected with the data acquisition assembly; the power generation device comprises a power generation assembly arranged perpendicular to the flow direction of the fluid and a battery assembly arranged outside the valve body; the power generation assembly comprises a generator set and a rotating wheel, and the rotating wheel is connected with a rotor of the generator set through a rotating shaft; the rotating wheel comprises blades, an upper base and a lower base; the data acquisition assembly is arranged in front of the valve body and/or in the valve and/or behind the valve and is used for acquiring medium parameters in the valve body in real time and transmitting the parameters to the display terminal. The intelligent pressure reducing valve can generate electricity automatically, and the electricity generation performance is stable; has data acquisition and display functions.

Description

Intelligent pressure reducing valve integrating power generation and data acquisition functions
Technical Field
The invention relates to the field of valves, in particular to an intelligent pressure reducing valve integrating power generation and data acquisition functions.
Background
At present, global resources are in short supply, various energy sources such as water resources and gas sources are in a short supply state, the concept of intelligent water affairs is developed according to water resources, water is saved, effective leakage control is achieved, advanced pressure valves with flow detection functions are proposed in the United states and Italy successively, leakage can be controlled to be as small as possible, but a flow detection device of the pressure valves needs an external power supply or a battery and depends on external power supply, and only flow parameters need to be detected, so that the power consumption is small. However, the intelligent water service is far not limited to leakage control, and various parameters such as water quality and the like need to be measured so as to comprehensively evaluate water flowing in the valve, so that various types of detection instruments need to be added, an external power supply or a battery which is simply arranged cannot fully drive various detection instruments to operate simultaneously, and if the effect of comprehensive power supply is achieved, the external power supply or the battery needs to be designed in a complex way, so that the engineering quantity is large, the cost is high, and the later maintenance is troublesome.
The related case of water flow power generation also exists in the prior art, but the case is only the combination of water flow power generation and a valve, and a detection module is not involved, namely, the case of supplying power to the detection module by using electric energy generated by water flow power does not exist in the prior art. Meanwhile, in the water flow power generation technology in the prior art, the turbine is directly pushed to rotate by utilizing fluid acting force, and the spherical rotating wheel is adopted in the prior art, so that the electromagnetic induction generator is driven to generate power, but the turbine is not specifically designed for the flow of water flow, namely when the water flow is large, the turbine is greatly impacted, the turbine is possibly damaged, and meanwhile, due to the fact that the water flow is not uniform, when the water flow passes through the turbine, the electromagnetic induction generator is unstable in power generation, and the service life of a rechargeable battery of the electromagnetic induction generator is directly influenced.
Disclosure of Invention
The invention provides an intelligent pressure reducing valve which can automatically generate power and collect data in the valve and integrates the functions of power generation and data collection, so as to overcome at least one defect in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the intelligent pressure reducing valve integrates the functions of power generation and data acquisition, and comprises a pressure reducing valve body, a power generation device, a data acquisition assembly, a data processing device and a display terminal, wherein the valve body is provided with an actuator for controlling the opening of the valve body;
the power generation device is used for providing working power for the data acquisition assembly and the actuator of the valve, and comprises a power generation assembly arranged perpendicular to the flow direction of the fluid and a battery assembly arranged outside the valve body; the power generation assembly comprises a generator set and a rotating wheel, and the rotating wheel is connected with a rotor of the generator set through a rotating shaft; the rotating wheel comprises blades, an upper base and a lower base, two end parts of each blade are fixedly connected with the rotating shaft through the upper base and the lower base, and the two connecting positions of the upper base and the lower base and the same blade are not on the same vertical line; the blades are uniformly distributed around the rotating shaft;
the data acquisition assembly is arranged in front of the valve body and/or in the valve and/or behind the valve and is used for acquiring medium parameters in the valve body in real time and transmitting the parameters to the display terminal.
The intelligent pressure reducing valve generates power through the power generation device of the intelligent pressure reducing valve, provides electric energy for the electric elements of the intelligent pressure reducing valve and does not need an additional power supply. Compared with a common power generation device with a spherical rotating wheel, the blades of the power generation device are arranged, namely the rotating wheel with symmetrical blades is twisted at a certain angle, so that the upper hemisphere, the lower hemisphere, the left hemisphere and the right hemisphere are asymmetrical. Due to the special design of the blades, the fluid can contact the blades more comprehensively, the utilization rate of the fluid is improved, and the power generation efficiency is improved. Under the condition of reducing the fluid flow or the flow speed, compared with the prior art, the invention can reduce the speed of reducing the speed of the main shaft, thereby relieving the unstable condition of power generation. And various data acquisition and detection are carried out on the fluid flowing in the valve body through different data acquisition assemblies arranged at all parts of the valve body, and the acquired and detected data are transmitted to a display terminal for display.
Furthermore, the blade connecting points of the upper base correspond to the blade connecting points of the lower base one by one, and the two corresponding connecting points are positioned on the same vertical line; one end of the same blade is connected with one connecting point of the upper base, and the other end of the same blade is connected with the adjacent connecting point of the corresponding lower base connecting point.
Furthermore, the cross section of the blade is a triangle-like shape, three vertex angles of the triangle-like shape are rounded corners, one vertex angle of the triangle-like shape extends towards the radial outer side of the rotating wheel, and the bottom side corresponding to the vertex angle extending towards the outer side of the rotating wheel is concave towards the triangle; the other two sides are convex outwards towards the triangle. The arrangement of the cross section shape can better realize the flow guide.
Furthermore, the device also comprises a swinging mechanism which can support the power generation assembly to vertically swing relative to the axial direction of the fixed shaft; the fixed shaft is fixed on a supporting seat, and the direction of the fixed shaft is perpendicular to the flowing direction of the fluid when the power generation assembly swings to the lowest position. Generally, when the flow rate of the fluid increases or the flow velocity increases, the impact force of the fluid on the blades increases, which causes a sudden increase in the rotation speed of the main shaft and unstable power generation. When the flow of the fluid is increased or the flow velocity of the fluid is increased, the fluid pushes the power generation device to vertically swing along the axial direction of the fixed shaft along with the swing mechanism, so that the power generation device swings from a position vertical to the water flow to a position forming an inclination angle with the original position, and the inclination angle is increased along with the increase of the thrust of the fluid. This causes a portion of the fluid to flow out of the angled gap, reducing the flow through the power plant; and the force of the fluid flowing through the power generation device on the power generation device is no longer perpendicular to the power generation device, but rather a component of the force does useful work on the power generation device. Therefore, the force of the fluid on the blades decreases, and the speed at which the rotational speed of the main shaft increases decreases. When the fluid flow is reduced or the flow speed is reduced, the power generation device is gradually restored to the original position from the inclination angle position along with the reduction of the acting force of the fluid, and similarly, the fluid which is lost from the inclination angle gap is reduced, and the effective acting force of the fluid which is not lost on the blades is gradually increased, so that the speed of reducing the rotating speed of the rotating shaft of the power generation device by the reduction of the fluid flow or the reduction of the flow speed is reduced. The power generation device can effectively relieve the influence of the change of the fluid flow or the change of the flow speed on the power generation stability.
Further, swing mechanism includes that one end cover establishes with the fixed axle on, the other end and generating set fixed connection's pendulum rod, still includes the return spring that carries out the restriction to the swing process of electricity generation subassembly, return spring connects on the fixed axle. Preferably, the return spring is one of a torsion spring, a tension spring, a compression spring and a bending spring. The invention skillfully utilizes the characteristic of the elasticity of the spring, so that the position of the power generation assembly can be changed along with the acting force of the fluid, the acting force of the fluid on the rotating wheel is further changed, the rotating speed of the rotating shaft is changed, and finally, the purpose that the power generation device can adapt to the change of water flow to realize stable power generation is realized.
The data acquisition assembly comprises one or more of a temperature sensor, a flow metering device, a water quality sensor and a pressure sensor. The valve can collect and detect various data in the valve.
Furthermore, the battery assembly comprises a rectifying module, a filtering module, a voltage transformation module and a rechargeable battery which are sequentially connected, and the rechargeable battery is respectively connected with the data acquisition assembly, an actuator of the valve and the display terminal. The electric energy transmitted by the generator set is rectified, filtered and transformed and then transmitted to the rechargeable battery to supply power to the electric element of the valve.
Compared with the prior art, the invention has the beneficial effects that:
1) the multifunctional pressure reducing valve creatively integrates three independent functional devices, namely a valve, metering and power generation, and can utilize the self kinetic energy of a circulating medium in the pressure reducing valve to generate power while having a data acquisition function, so that a working power supply is provided for a data acquisition assembly and an actuator of the pressure reducing valve, the self-sufficiency of the electric energy of the multifunctional pressure reducing valve is realized, and an external power supply is not needed; 2) the data acquisition assembly transmits the acquired relevant parameters to the data processing and display terminal, an operator can control relevant actions of the actuator of the pressure reducing valve according to the real-time display parameters of the data processing and display terminal, and the operator can know the working state of the multifunctional pressure reducing valve and the relevant parameter state of the medium in real time; 3) the arrangement of the swing mechanism in the power generation device provides effective support for the swing of the power generation set, stabilizes the medium circulation at the power generation assembly and enables the power generation set to generate power uniformly; 4) the swing rod has flexible rotation characteristic, and simultaneously, by utilizing the excellent elastic performance of the torsion spring, when the generator set inclines, the unlimited inclination of the power generation assembly is avoided on one hand, and when the medium flow rate is reduced, the power generation assembly quickly rebounds to be adapted to the medium flow rate, so that the effect of stabilizing the current is realized; 5) by designing the shape, the shape and the position of the rotating wheel, combining the large rotating wheel and the small rotating wheel and adding the movable sheet in the rotating wheel, the movable sheet can act in a self-adaptive manner to water flow; on the basis of not increasing the volume, the adaptability to the change of the fluid flow rate is improved;
6) the arrangement of the flow guide seat enables circulating media in front of the valve to be conveyed to the power generation device in a centralized manner, so that the power generation efficiency of the power generation device can be effectively improved, and the phenomenon that when the flow rate of the media is low, a large amount of media passes through a gap between the power generation device and the shell of the valve body, so that the pressure of the media passing through the rotating wheel is too small is avoided;
7) the pressure reducing valve has the advantage of self-sufficiency of electric energy generated by the power generation device, can be correspondingly provided with various data acquisition elements such as a temperature sensor, a flow metering device, a water quality sensor and the like, can acquire various parameters of a medium, and provides a large amount of reference data for a user.
Drawings
Fig. 1 is a schematic structural diagram of a T-type intelligent pressure reducing valve according to embodiment 1.
Fig. 2 is a schematic structural view of a power generation module of embodiment 1.
Fig. 3 is a schematic structural diagram of a blade with a triangular-like cross section.
Fig. 4 is a schematic structural diagram of a Y-type intelligent pressure reducing valve according to embodiment 2.
Fig. 5 is a schematic cross-sectional view of the Y-type intelligent pressure reducing valve of embodiment 2.
Fig. 6 is a schematic structural view of a power generation device of embodiment 2.
Fig. 7 is a schematic structural view of a power generation module of embodiment 3.
Fig. 8 is a schematic structural view of a power generation module of embodiment 4.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1, the present embodiment provides an intelligent pressure reducing valve integrating power generation and data acquisition functions. The present embodiment takes a T-type pressure reducing valve as an example. The intelligent pressure reducing valve comprises a pressure reducing valve body 33, a power generation device 32, a data acquisition assembly and a display terminal.
The data acquisition assembly comprises a flowmeter, a pressure sensor and a water quality sensor; in the specific implementation process, according to specific requirements, such as the opening of the valve body and the temperature of the fluid, other types of data acquisition assemblies can be adopted. The flow meter adopts the quantity that can measure the pipe network in this embodiment, has the ultrasonic flowmeter 31 of temperature compensation function simultaneously, and ultrasonic flowmeter 31 sets up anterior at intelligent relief pressure valve body through the tee bend pipe. The pressure sensors are respectively arranged in front of and behind the valve of the pressure reducing valve body 33, and the water quality sensor is arranged inside the pressure reducing valve body 33.
The power generation device 32 comprises a power generation assembly arranged perpendicular to the direction of the pipeline fluid and a battery assembly arranged outside the valve body; as shown, in order to minimize the volume of the pressure reducing valve, a power generation device 32 is disposed between the ultrasonic flow meter 31 and the T-shaped branch pipe of the T-shaped pressure reducing valve.
As shown in fig. 2, the power generation assembly includes a generator set 1 and a runner 2; the generator set 1 is arranged outside the valve body, so that subsequent maintenance is facilitated; the runner 2 sets up inside the valve body, and the runner 2 is connected with the rotor of generating set 1 through pivot 3. The height of the rotating shaft 3 is close to the height of the pipeline at the water inlet of the pressure reducing valve body 33, so that the rotating wheel 2 just fills the radial interface of the pipeline, and can be fully contacted with fluid while rotating flexibly. The runner 2 comprises blades, an upper base 4 and a lower base 5; the two ends of the blade are fixedly connected with the rotating shaft 3 through the upper base 4 and the lower base 5, and the upper base 4 and the lower base 5 are not in the same vertical line with the two connecting positions of the same blade; the blades are evenly distributed around the shaft 3.
As shown in fig. 3, the cross-section of the blade is triangular-like. Three vertex angles of the triangle are fillets, and a bottom edge 23 corresponding to the vertex angle 21 extending outwards of the rotating wheel is inwards concave towards the triangle; the adjacent side 22 of the apex angle 21 and the other adjacent side are convex towards the triangle. The number of the blades is specifically set according to different specific application occasions. The upper base blade connecting points correspond to the lower base blade connecting points one by one, and the two corresponding connecting points are positioned on the same vertical line; one end of the same blade is connected with one connecting point of the upper base, and the other end of the same blade is connected with the adjacent connecting point of the corresponding lower base connecting point.
The battery pack comprises a rectifying module, a filtering module, a voltage reduction module and a rechargeable battery which are connected in sequence.
The control method of the intelligent pressure reducing valve comprises the following steps:
s1, enabling a medium to enter a valve body of the T-shaped intelligent pressure reducing valve, enabling a generator set of the power generation device to generate power and charge a battery pack in the process that the medium flows through the power generation device, and enabling the battery pack to output constant voltage to provide a working power supply for a data acquisition assembly and a valve actuator.
The fluid in the pipeline flows through the pressure reducing valve, the flowing fluid drives the blades of the rotating wheel 2 to rotate, and the blades drive the main shaft 3 to rotate so that the rotor of the generator set 1 connected with the main shaft rotates, and therefore the generator set generates electricity. The three-phase current output by the generator set is transmitted to the battery pack, the alternating current is converted into direct current through the rectifying module, interference and a purified power supply are removed from the current through the filtering module, and then the voltage transformation module is a voltage reduction module or a voltage boosting module according to the requirement of an electric element, so that the voltage reduction processing or the voltage boosting processing is carried out to meet the size of a subsequent required working power supply. The processed three-phase current is input to a rechargeable battery to charge the rechargeable battery. The rechargeable battery provides power for the data acquisition assembly and the pressure reducing valve actuator.
And S2, the data acquisition element acquires corresponding data and transmits the corresponding data to the display terminal.
The display terminal of this embodiment is a display screen disposed outside the valve body.
And the data acquisition element starts to work after power is supplied. The pressure sensors arranged in front of the valve and behind the valve respectively collect pressure values in front of the valve and behind the valve, the ultrasonic flowmeter 31 collects the flow of fluid flowing into the valve, and the water quality sensor collects the water quality of the fluid in the valve.
And the valve body inlet flow data of the ultrasonic metering device, the water pressure change data of the two pressure sensors and the water quality data of the water quality sensors are sent to a display screen for displaying.
And S3, an operator performs related execution operation on the valve according to the data display condition in the step S2 by viewing the display screen, so that the opening and closing and opening conditions of the valve body are controlled.
Example 2
As shown in fig. 4, 5 and 6, the present embodiment is different from embodiment 1 in that the intelligent pressure reducing valve of the present embodiment is a Y-type intelligent pressure reducing valve; the power generation device 32 further includes a swing mechanism; the power generation assembly is arranged inside the pressure reducing valve body and is perpendicular to the direction of the fluid. The inlet of the pressure reducing valve is provided with a flow guide seat 13 for guiding fluid, the periphery of the flow guide seat is connected with the inner wall of the valve body through bolts, a section of conical flow guide surface and a section of cylindrical flow guide surface are arranged in the flow guide seat, a medium sequentially flows through the conical flow guide surface, the cylindrical flow guide surface and the power generation assembly, and the caliber of the cylindrical flow guide surface is matched with the size of the rotating wheel.
As shown in fig. 6, the power generation assembly 9 is arranged inside the pipeline, and further comprises a swinging mechanism capable of supporting the power generation assembly 9 to swing vertically relative to the axial direction of the fixed shaft 11; the fixed shaft 11 is fixed on a support seat, and the support seat is fixedly connected with the decompression valve shell in the embodiment; the fixed shaft 11 is disposed in a direction perpendicular to the fluid flow direction when the power generation module 9 is swung to the lowermost position.
The swing mechanism comprises a swing rod 10 and a return spring 12, wherein one end of the swing rod is sleeved on the fixed shaft 11, the other end of the swing rod is fixedly connected with the generator set, the return spring 12 limits the swing position of the generator set, and the return spring 12 is connected to the fixed shaft 11.
The fluid in the pipeline is guided by a guide seat 13 arranged in front of the pressure reducing valve 9 and flows through the power generation assembly 9. When the fluid flow velocity is too large, and the acting force of the fluid on the blades of the generator set is larger than the resilience force of the return spring 12, the fluid pushes the power generation assembly 9 to rotate along the fixed shaft 11 along with the swing rod 10, the rotating wheel 2 and the pipeline form an inclination angle in the radial direction, part of the fluid flows through a gap between the rotating wheel and the pressure reducing valve shell 14, the fluid flowing through the rotating wheel 2 is correspondingly reduced, and the thrust of the fluid flowing through the blades of the rotating wheel and the angle of the blades are changed, so that the stress of the blades is correspondingly reduced, and the rotating speed of the blades. The current generated by the power generation assembly 9 does not abruptly change due to the increase in the fluid flow rate.
When the flow velocity of the fluid is reduced and the acting force of the fluid on the blades of the runner is smaller than the resilience force of the return spring 12, the power generation assembly 9 rotates along the fixed shaft 11 along with the swing rod 10 through the resilience force of the return spring 12 and returns to the vertical position from the inclination angle position. As the gap between the power generation assembly 9 and the pressure reducing valve 14 is gradually reduced, the fluid loss amount is reduced, accordingly, the fluid flowing through the runner blade is increased, and the thrust of the fluid flowing through the runner blade and the angle of the blade are changed, so that the stress on the blade is correspondingly increased, and the rotating speed of the blade is further increased. The current generated by the power generation assembly 9 does not abruptly change due to the decrease in the fluid flow rate.
The current generated by the final power generation assembly 9 does not change suddenly due to the sudden change of the fluid flow speed, so that the effect of stabilizing the current is achieved. The intelligent pressure reducing valve of the embodiment has stable self-generating effect.
The intelligent pressure reducing valve controls the opening degree of the pressure reducing valve through the volume change of the control cavity 35 to ensure the stability of the downstream pressure of a pipe network, and the structure can stabilize the downstream pressure of the pipe network by using a medium through a pilot valve and also can stabilize the downstream pressure of the pipe network through a pressure sensor and a PLC control module which are arranged in front of and behind the valve; the pressure reducing element 34 is a valve clack and flow guiding sleeve type structure, and the pressure changes when the medium passes through, so that the effect of the downstream pressure of the pipe network is achieved.
Example 3
As shown in fig. 7, the present embodiment is different from embodiment 1 or embodiment 2 in that a small runner 8 is provided inside the runner 2; the small rotating wheel 8 and the rotating wheel 2 have the same structure; the blades of the small runner 8 and the blades of the runner 2 are arranged in a staggered mode. The material of the small rotating wheel can be light, so that the light weight of the power generation assembly is achieved.
When the fluid flow is constant and the flow rate is normal, the small runner and the large runner rotate under the impact of the fluid, so as to drive the rotating shaft 3 to rotate, compared with the rotation of the main shaft 3 in the embodiments 1 and 2, in the embodiment 2, the small runner is added to increase the contact surface with the fluid, so that the thrust of the fluid to the blades is increased, and the rotation speed of the main shaft 3 is increased. When the fluid flow is reduced and the flow velocity is reduced, the small rotating wheel 8 is staggered with the blades of the rotating wheel 2, so that the water flow flowing through the rotating wheel 2 can flow through the small rotating wheel, the utilization rate of the water flow is improved, and the influence on the flow velocity power generation device when the flow velocity is too low is reduced. Compared with other general power generation devices, the power generation device of the embodiment can reduce the influence degree of the reduction of the fluid flow or the reduction of the flow speed on the power generation and the influence speed.
The small rotating wheel is skillfully arranged inside the large rotating wheel, so that the problem of unstable power generation caused by the fact that the flow speed is reduced can be solved, and the volume of the power generation device can be ensured to be not increased as much as possible.
Example 4
As shown in fig. 8, the present embodiment is different from embodiment 1 in a power generation module. A movable sheet 7 is arranged between the blade and the rotating shaft 3; the movable plate 7 is connected between the blade and the rotating shaft through a transverse shaft which is transversely arranged between the blade and the rotating shaft, a torsion spring 6 is fixedly arranged on the transverse shaft, and the torsion spring 6 is connected with the movable plate.
When the flow of the fluid is constant and the flow rate is normal, the contact surface of the fluid is increased through the movable sheet 7, so that the thrust of the fluid to the main shaft is increased, and the rotation speed of the main shaft is increased. The movable sheet swings along the transverse shaft and also revolves along with the rotation of the main shaft driven by the blades.
When the fluid flow increases or the velocity of flow becomes fast, the thrust of fluid blade grow, when thrust is greater than the resilience force of torsion spring 6 on the movable plate, movable plate 7 is promoted from the vertical position with rivers direction to become certain inclination with the vertical position for originally, go to promote the fluid part of movable plate 7 and flow out from the inclination clearance, thereby reduce the thrust of fluid to the blade, reduce the acceleration of main shaft 3 rotation speed, thereby reduce the fluid flow increase or the velocity of flow becomes fast to the negative effects of stability of generating electricity.
The same or similar reference numerals correspond to the same or similar parts; the positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent. It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (8)

1. An intelligent pressure reducing valve integrating power generation and data acquisition functions comprises a pressure reducing valve body, wherein the pressure reducing valve body is provided with an actuator for controlling the opening degree of a valve;
the power generation device is used for providing a working power supply for the data acquisition assembly and the actuator for controlling the opening of the valve, and comprises a power generation assembly and a battery assembly, wherein the power generation assembly is arranged perpendicular to the flow direction of the fluid, and the battery assembly is arranged outside the valve body; the power generation assembly comprises a generator set and a rotating wheel, and the rotating wheel is connected with a rotor of the generator set through a rotating shaft; the rotating wheel comprises blades, an upper base and a lower base, two end parts of each blade are fixedly connected with the rotating shaft through the upper base and the lower base, and the two connecting positions of the upper base and the lower base and the same blade are not on the same vertical line; the blades are uniformly distributed around the rotating shaft;
the small rotating wheels are arranged in the rotating wheels, the structures of the small rotating wheels are consistent with those of the rotating wheels, and blades of the small rotating wheels and blades of the rotating wheels are arranged in a staggered mode;
the small rotating wheel can be replaced by a movable sheet arranged between the blades and the rotating shaft, the movable sheet is connected between the blades and the rotating shaft through a transverse shaft transversely arranged between the blades and the rotating shaft, a torsion spring is fixedly arranged on the transverse shaft, and the torsion spring is connected with the movable sheet;
the intelligent pressure reducing valve also comprises a swinging mechanism capable of supporting the power generation assembly to vertically swing relative to the axial direction of the fixed shaft and a return spring for limiting the swinging process of the power generation assembly;
the data acquisition assembly is arranged in front of the valve body and/or in the valve and/or behind the valve and is used for acquiring medium parameters in the valve body in real time and transmitting the parameters to the display terminal.
2. The intelligent pressure reducing valve integrating power generation and data acquisition functions as claimed in claim 1, wherein the blade connecting points of the upper base correspond to the blade connecting points of the lower base one to one, and the two corresponding connecting points are located on the same vertical line; one end of the same blade is connected with one connecting point of the upper base, and the other end of the same blade is connected with the adjacent connecting point of the corresponding lower base connecting point.
3. The intelligent pressure reducing valve integrating power generation and data acquisition functions as claimed in claim 1 or 2, wherein the cross section of the blade is a triangle-like shape, three vertex angles of the triangle-like shape are rounded corners, one vertex angle of the triangle-like shape extends towards the radial outer side of the rotating wheel, and the bottom side corresponding to the vertex angle extending towards the outer side of the rotating wheel is concave towards the triangle; the other two sides are convex outwards towards the triangle.
4. The pressure reducing valve as claimed in claim 1, wherein the shaft is fixed to a support base, and the shaft is disposed in a direction perpendicular to a fluid flow direction when the power generating module is swung to a lowest position.
5. The intelligent pressure reducing valve integrating power generation and data acquisition functions as claimed in claim 1, wherein the swing mechanism comprises a swing rod, one end of the swing rod is sleeved on the fixed shaft, and the other end of the swing rod is fixedly connected with the generator set; the return spring is connected to the fixed shaft; the return spring is one of a torsion spring, a tension spring, a compression spring and a bending spring.
6. The intelligent pressure reducing valve integrating power generation and data acquisition functions as claimed in claim 5, wherein a flow guide seat for guiding a medium is further arranged in the pressure reducing valve body, the periphery of the flow guide seat is connected with the inner wall of the valve body through a bolt, a section of conical flow guide surface and a section of cylindrical flow guide surface are arranged in the flow guide seat, the medium sequentially flows through the conical flow guide surface, the cylindrical flow guide surface and the power generation assembly, and the caliber of the cylindrical flow guide surface is matched with the size of the rotating wheel.
7. The intelligent pressure reducing valve integrating power generation and data acquisition functions as claimed in claim 5, wherein the data acquisition assembly comprises one or more of a temperature sensor, a flow metering device, a water quality sensor and a pressure sensor.
8. The intelligent pressure reducing valve integrating power generation and data acquisition functions as claimed in any one of claims 5 to 7, wherein the battery assembly comprises a rectifying module, a filtering module, a voltage transformation module and a rechargeable battery which are connected in sequence, and the rechargeable battery is respectively connected with the data acquisition assembly, an actuator for controlling the opening degree of the valve and a display terminal.
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CN113513607B (en) * 2020-04-10 2022-12-09 盾安环境技术有限公司 Combination valve
CN113720409B (en) * 2021-09-14 2024-07-02 江花集团有限公司 Water meter

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