CN107859779B - Self-generating multifunctional pressure reducing valve and control method thereof - Google Patents
Self-generating multifunctional pressure reducing valve and control method thereof Download PDFInfo
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- CN107859779B CN107859779B CN201711034724.8A CN201711034724A CN107859779B CN 107859779 B CN107859779 B CN 107859779B CN 201711034724 A CN201711034724 A CN 201711034724A CN 107859779 B CN107859779 B CN 107859779B
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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
- F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
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- 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
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
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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
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
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- General Engineering & Computer Science (AREA)
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- Indication Of The Valve Opening Or Closing Status (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention belongs to the technical field of valves, and discloses a self-generating multifunctional pressure reducing valve which comprises a valve body, wherein the valve body is provided with an actuator for controlling the opening degree, and is also provided with a power generating device, a data acquisition assembly and a data processing and display terminal, the power generating device comprises a power generating assembly inside the valve body and a battery assembly outside the valve body, and the data acquisition assembly is arranged in front of the valve and/or in the valve and/or behind the valve; the data acquisition assembly is used for acquiring parameters of the valve body medium in real time and transmitting the parameters to the data processing and display terminal, an operator performs corresponding operation on the actuator according to the parameters provided by the data processing and display terminal, and the power generation device is used for providing a working power supply for the data acquisition assembly and the data processing and display terminal. The pressure reducing valve has a data acquisition function, and meanwhile, the pressure reducing valve can also utilize the self kinetic energy of a circulating medium in the pressure reducing valve to generate electricity, 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 self-generating multifunctional pressure reducing valve is realized, and an external power supply is not needed.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a multifunctional pressure reducing valve and a control method thereof.
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 mainly directly pushed to rotate by utilizing fluid acting force, 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, because of the non-uniformity of the water flow, the electromagnetic induction generator is unstable in power generation when flowing through the turbine, the service life of a rechargeable battery of the electromagnetic induction generator is directly influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a self-generating multifunctional pressure reducing valve which integrates a valve, detection and power generation.
The purpose of the invention is realized by the following technical scheme:
a self-generating multifunctional pressure reducing valve comprises a pressure reducing valve body, a power generation device, a data acquisition assembly and a data processing and display terminal, wherein the valve body is provided with an actuator for controlling the opening of the valve body; the data acquisition assembly is used for acquiring parameters of media in the valve body in real time and transmitting the parameters to the data processing and display terminal, an operator carries out corresponding operation on the actuator according to the real-time parameters provided by the data processing and display terminal, and the power generation device is used for providing a working power supply for the data acquisition assembly and the data processing and display terminal.
The power generation assembly comprises an assembly shell, a generator set, a fixed shaft and a swing mechanism, wherein the assembly shell is provided with connecting through holes at two ends, the generator set is positioned in the assembly shell, the fixed shaft is fixed on the assembly shell, and the swing mechanism can support the generator set to vertically swing relative to the axis direction of the fixed shaft.
The generating set comprises a generating core part, a first overflowing surface arranged on the outer periphery of the generating core part and a second overflowing surface connected with the outer periphery of the first overflowing surface and the inner periphery of a connecting through hole at one end of the assembly shell, and the generating core part is electrically connected with the battery assembly; the fixed shaft is arranged in a direction that the first flow surface is parallel to the connecting through holes at the two ends of the component shell when the generator set swings to the lowest position.
The data acquisition assembly comprises two pressure sensors which are respectively arranged in front of the valve and behind the valve.
Further, the swing mechanism comprises a swing rod, wherein one end of the swing rod is sleeved on the fixed shaft, the other end of the swing rod is fixedly connected with the generator set, the swing mechanism further comprises a return spring for limiting the swing process of the generator set, and the return spring is connected to the fixed shaft.
Further, the return spring is a torsion spring, the torsion spring comprises an elastic part, a first end part and a second end part, the first end part and the second end part are located at two ends of the elastic part, the elastic part is fixedly sleeved on the outer surface of the fixed shaft, the first end part is in contact with the inner wall of the component shell to serve as a return fulcrum, and the second end part is in contact with the generator set.
Further, the first overflowing surface is an elastic overflowing surface.
Further, battery pack is including rectifier module, filtering module, step-down module and the rechargeable battery who connects gradually, rechargeable battery is connected with data acquisition subassembly, data processing and display terminal electricity respectively.
Further, still be equipped with the water conservancy diversion seat that carries out the water conservancy diversion to the medium in the relief pressure valve body, water conservancy diversion seat periphery and valve body inner wall bolted connection are equipped with one section conical water conservancy diversion face and one section cylindrical water conservancy diversion face in the water conservancy diversion seat, and the small-bore end and the cylindrical water conservancy diversion face tip of conical water conservancy diversion face meet, and conical water conservancy diversion face, cylindrical water conservancy diversion face and the electricity generation subassembly are flowed through in proper order to the medium, the bore of cylindrical water conservancy diversion face and the connect the through-hole adaptation of electricity.
Furthermore, the data acquisition assembly also comprises one or more of a temperature sensor, a flow metering device and a water quality sensor.
Further, the data processing and display terminal comprises a PLC processor and a display screen which are electrically connected with each other.
The control method of the self-generating multifunctional pressure reducing valve comprises the following steps of:
a. enabling the medium to enter a pressure reducing valve body, enabling the medium to flow through a power generation device, enabling a power generation assembly to perform turbine power generation and charge a battery assembly, and enabling the battery assembly to output constant voltage to provide a working power supply for a data acquisition assembly and a data processing and display terminal;
b. collecting related parameters of a medium in the valve body through a data collection assembly and transmitting the data to a data processing and display terminal;
c. b, an operator performs related operation on the actuator according to the data display condition in the step b, so as to control the opening and closing and opening conditions of the valve body;
d. and when the valve body is in a constant pressure output state after running to the valve, the related parameters of the medium are transmitted to an operator in an NB-IOT (NB-IOT) mode.
Compared with the prior art, the invention has the following beneficial effects:
1) the self-generating 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, a data processing and display terminal, the self-sufficiency of the electric energy of the self-generating 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 self-generating multifunctional pressure reducing valve and the relevant parameter state of a medium in real time;
3) the arrangement of the swing mechanism in the power generation device provides effective support for the swing of the generator set, stabilizes the medium circulation at the power generation core part and enables the generator 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) the first overflowing surface in the power generation device is designed to be an elastic overflowing surface, so that when a large amount of overflowing media are in contact with the first overflowing surface, the first overflowing surface generates impact concave deformation, namely, the first overflowing surface can generate a certain buffer effect on the impact of the overflowing media, and the impact pressure of the flowing media on the power generation assembly impeller is effectively reduced;
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 the outer shell of the assembly of the power generation device, so that the pressure of the media passing through the power generation core part 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 cross-sectional view of the self-generating multifunctional pressure reducing valve;
FIG. 2 is a schematic structural diagram of the power generation device;
FIG. 3 is a front view of the power plant;
FIG. 4 is a cross-sectional view of the power generation device;
FIG. 5 is a schematic view of the power generation device mounted in a valve body of a pressure reducing valve;
fig. 6 is a schematic view of the power generation device.
Detailed Description
The present invention will be further described with reference to the following detailed description, wherein the drawings are provided for illustrative purposes only and are not intended to be limiting; to better illustrate the embodiments of the present invention, some parts 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.
Examples
As shown in fig. 1-6, the self-generating multifunctional pressure reducing valve comprises a pressure reducing valve body, an actuator (not shown) for controlling the opening degree of the valve body, a power generation device, a data acquisition assembly 3 and a data processing and display terminal (not shown).
The power generation device comprises a power generation assembly 1 arranged inside the valve body and a battery assembly 2 arranged outside the valve body, and the data acquisition assembly 3 is arranged in front of the valve body and/or in the valve and/or behind the valve; the data acquisition assembly 3 is used for acquiring medium parameters in the valve body in real time and transmitting the parameters to the data processing and display terminal, an operator carries out corresponding operation on the actuator according to the real-time parameters provided by the data processing and display terminal, and the power generation device is used for providing a working power supply for the data acquisition assembly, the data processing and display terminal.
The self-generating multifunctional pressure reducing valve integrates three independent functional devices including a valve, a metering device and a power generating device, namely the pressure reducing valve has a data acquisition function, meanwhile, the self kinetic energy of a circulating medium in the pressure reducing valve can be utilized to generate power, a working power supply is provided for a data acquisition assembly and a data processing and display terminal, self-sufficiency of the power of the self-generating multifunctional pressure reducing valve is realized, and an external power supply is not needed.
The pressure reducing valve of this embodiment is specifically a straight-through Y-type pressure reducing valve, and the circulating medium is water, as shown in fig. 1, and includes a valve front (valve inlet), a valve rear (valve outlet), a main valve plate 41, a slow-closing valve plate 42, two bypass pipelines (not shown), a diaphragm pressure plate 43, a diaphragm upper cavity 44, and a diaphragm lower cavity 45, where each bypass pipeline is provided with an actuator (i.e., an actuator for controlling the opening of the valve body).
The power generation assembly 1 comprises an assembly shell 11 with connecting through holes at two ends, a generator set 12 positioned in the assembly shell, a fixed shaft 13 fixed on the assembly shell, and a swing mechanism capable of supporting the generator set to swing vertically relative to the axial direction of the fixed shaft, wherein the generator set 12 can swing in the assembly shell 11.
The generator set 12 includes a generator core 12A, a first flow surface 12B provided on the outer periphery of the generator core, and a second flow surface 12C connecting the outer periphery of the first flow surface and the inner periphery of a connecting through hole at one end of the pack case, and the generator core 12A is electrically connected to the battery pack 2.
Specifically, in order to ensure the medium to be in overcurrent contact with the power generation device, the fixed shaft 13 is arranged in a direction such that the first overcurrent surface 12B is parallel to the connecting through holes at the two ends of the module housing when the generator set 12 swings to the lowest position.
The junction of the first flow surface 12N and the second flow surface 12C is a sealed junction, which does not allow water to pass through the junction.
The data acquisition assembly 2 comprises two pressure sensors respectively arranged in front of and behind the valve.
The generator set 12 is a turbine generator set, the generator core 12A includes an impeller a1 and a shaft a2, a generator (not shown) is arranged in the shaft, and the impeller a1 is driven by water flow to rotate and simultaneously drive the shaft a2 to rotate, so that turbine power generation of the generator is realized.
In order to ensure that the swing mechanism forms effective support for the swing of the generator set 12, the swing mechanism comprises a swing rod 14, one end of which is sleeved on the fixed shaft 13 and the other end of which is fixedly connected with the generator set, and a return spring which limits the swing process of the generator set, wherein the return spring is connected on the fixed shaft 13 so as to ensure that the return spring and the fixed shaft do not move relatively.
The return spring may be a torsion spring, an extension spring, a compression spring, a bending spring, or the like, in this embodiment, the torsion spring is selected, the torsion spring includes an elastic portion 15A, and a first end portion 15B and a second end portion 15C located at two ends of the elastic portion, the elastic portion 15A is fixedly sleeved on the outer surface of the fixed shaft 13, the first end portion 15B contacts with the inner wall of the component housing to serve as a return fulcrum, and the second end portion 15C contacts with the generator set.
In order to avoid the damage of relevant parts of the generator set caused by the large impact of the water flow pressure on the overflowing surface, the first overflowing surface 12B can be set as an elastic overflowing surface, when a large amount of water flow contacts with the first overflowing surface 12B and the second overflowing surface 12C, the first overflowing surface 12B can generate impact concave deformation, a certain buffering effect can be generated on the impact of the water flow, the medium soft landing is equivalent to the medium soft landing, and the impact pressure of the water flow on the impeller of the generator set is effectively reduced.
Specifically, the water flow passes through the self-generating multifunctional pressure reducing valve and contacts with a first overflowing surface 12B and a second overflowing surface 12C of the power generation device, when the medium flow velocity is larger, the impact force of the water flow is buffered by the elastic action of the first flow passing surface 12B, when the flow velocity of the water flow is further increased, the water flow pushes the generator set 12 to incline by taking the fixed shaft 13 as a fulcrum, at the moment, the pressure of the water flow forces the second end 15C of the return spring to generate elasticity and deform under certain pressure, and because of the angled gap formed between the genset 12 and the assembly housing 11, some of the water will flow through this gap, the water flow through the genset impeller a1 will be correspondingly reduced, and the thrust of the water flow flowing through the impeller of the generator set and the angle of the generator set are changed, so that the stress of the impeller is correspondingly reduced, the rotating speed of the impeller A1 is reduced to a certain extent, and the current generated by the power generation assembly is not increased due to the great increase of the flow speed of the water flow.
When the rivers velocity of flow diminishes, rivers will slowly reduce to generating set 12's pressure, until being less than the resilience force of return spring, at this in-process, generating set 12 passes through the resilience force of return spring, rotate along with the pendulum rod along fixed axle 13, slowly get back to vertical position from the inclined position, along with the clearance between generating set 12 and the subassembly shell 11 reduces gradually, the volume that rivers circulate in the clearance reduces, correspondingly, the rivers of impeller of flowing through will become many, rivers change the corresponding increase of impeller atress to impeller A1's thrust and generating set's angle, further increase the rotational speed of impeller, the electric current that makes the electricity generation subassembly produce does not reduce because of the reduction of rivers velocity of flow.
The current generated by the final power generation assembly 1 does not change suddenly due to the sudden change of the water flow speed, so that the effect of stabilizing the current is realized.
The battery component 2 comprises a rectifying module, a filtering module, a voltage reduction module, a voltage boosting module and a rechargeable battery which are sequentially connected, and the rechargeable battery is respectively and electrically connected with the data acquisition component 3 and the data processing and display terminal.
The water flow flows through the self-generating multifunctional pressure reducing valve, the flowing water flow drives the impeller A1 to rotate, the impeller A1 drives the shaft A2 to rotate and enables the rotor of the generator connected with the shaft A to rotate, and therefore the generator generates electricity.
The three-phase current output by the generator is transmitted to the battery assembly, the alternating current is converted into direct current through the rectifying module, interference on the current is removed through the filtering module, the power supply is purified, and then the voltage reduction processing or the voltage boosting processing is selectively carried out through the voltage reduction module or the voltage boosting module so as 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 finally provides power for the data acquisition element and the data processing and display terminal.
In order to intensively convey water flow in front of the valve to the power generation device, the power generation efficiency of the power generation device is effectively improved, a flow guide seat 5 for guiding the water flow is further arranged in a valve body of the pressure reducing valve, 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 51 and a section of cylindrical flow guide surface 52 are arranged in the flow guide seat 5, the small-caliber end of the conical flow guide surface 51 is connected with the end part of the cylindrical flow guide surface 52, media sequentially flow through the conical flow guide surface 51, the cylindrical flow guide surface 52 and the power generation assembly 1, the caliber of the cylindrical flow guide surface 51 is matched with the connecting through hole of the power generation assembly 1, therefore, the water flow can be completely centralized, when the flow velocity of the water flow is low, a large.
The data processing and display terminal comprises a PLC processor and a display screen which are electrically connected with each other.
The power generation device of the embodiment generates power to form the advantage of self-sufficiency of electric energy, so that the self-generating multifunctional pressure reducing valve 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 media, and provides a large amount of reference data for users.
If the flow metering device is installed, an ultrasonic metering device (namely an ultrasonic water meter) is preferably selected, the ultrasonic metering device has low starting flow rate, wide range ratio, high measurement precision and stable work, no movable part or flow blocking element is arranged in the ultrasonic metering device, the influence of impurities in water is avoided, the service life is long, the output communication function is complete, the requirements of various types of communication and wireless networking can be met, and the most outstanding advantage is that the ultrasonic metering device not only can accurately meter the flow, but also has the temperature compensation function.
The control method of the self-generating multifunctional pressure reducing valve specifically comprises the following steps:
a. enabling the medium to enter a pressure reducing valve body, enabling the medium to flow through a power generation device, enabling a power generation assembly to perform turbine power generation and charge a battery assembly, and enabling the battery assembly to output constant voltage to provide a working power supply for a data acquisition assembly and a data processing and display terminal;
b. collecting related parameters of a medium in the valve body through a data collection assembly and transmitting the data to a data processing and display terminal;
c. b, an operator performs related operation on the actuator according to the data display condition in the step b, so as to control the opening and closing and opening conditions of the valve body;
d. and when the valve body is in a constant pressure output state after running to the valve, the related parameters of the medium are transmitted to an operator in an NB-IOT (NB-IOT) mode.
Specifically, the control process of the straight-through Y-type pressure reducing valve for the present embodiment is as follows: before water flow enters the valve body valve and flows through the power generation device, the power generation device generates power and provides working power for a data processing and display terminal and a data acquisition assembly, an operator firstly operates the actuator to enable the water flow to enter the lower diaphragm cavity 45 from one bypass pipe, the main valve plate 41 and the slow-closing valve plate 42 are slowly opened under the action of the water pressure in front of the valve and in the lower diaphragm cavity, the water flow in the lower diaphragm cavity 45 is pressed to the upper diaphragm cavity 44 through the diaphragm pressing plate 43, the water flow in the upper diaphragm cavity 44 flows to the valve along the bypass pipe due to the operation of the other bypass pipe actuator, the process is continued until the main valve plate 41 rises to the maximum opening state (the opening height is determined by the water flow), along with the change of the water flow rate, the data acquisition assembly (such as a pressure sensor) acquires differential pressure data in front of the valve and behind the valve, and relevant data are displayed to the operator through the data processing and display terminal, and guiding an operator to correspondingly operate the actuators on the two bypass pipelines, namely on one hand, operating the actuator on the bypass pipeline in front of the valve to enable the water flow of the lower diaphragm cavity 45 to flow to the front of the valve along the bypass pipeline, and on the other hand, operating the actuator on the bypass pipeline behind the valve to enable the water flow behind the valve to flow to the upper diaphragm cavity 44 along the bypass pipeline, so that the main valve plate 41 begins to slide downwards, the flow of the water is reduced, and the purpose of adjusting the multi-self-generating multifunctional pressure reducing valve is achieved.
According to the invention, the related parameters of the water flow are displayed in real time through the data processing and display terminal, and an operator can control the related actions of the actuator of the pressure reducing valve according to the real-time parameters, so that the operator can know the working state of the self-generating multifunctional pressure reducing valve and the related parameter state of the medium in real time.
It should be understood that the above examples are only for clearly illustrating the technical solutions of 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 (6)
1. A self-generating multifunctional pressure reducing valve comprises a pressure reducing valve body, wherein the valve body is provided with an actuator for controlling the opening degree of the valve body, and the pressure reducing valve is characterized by further comprising a power generation device, a data acquisition assembly and a data processing and display terminal, wherein the power generation device comprises a power generation assembly arranged inside the valve body and a battery assembly arranged outside the valve body, and the data acquisition assembly is arranged in front of the valve body and/or in the valve and/or behind the valve; the data acquisition assembly is used for acquiring parameters of media in the valve body in real time and transmitting the parameters to the data processing and display terminal, an operator performs corresponding operation on the actuator according to the real-time parameters provided by the data processing and display terminal, and the power generation device is used for providing a working power supply for the data acquisition assembly and the data processing and display terminal;
the power generation assembly comprises an assembly shell, a generator set, a fixed shaft and a swing mechanism, wherein the two ends of the assembly shell are provided with connecting through holes; the swing mechanism comprises a swing rod, a return spring and a spring, wherein 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 generating set comprises a generating core part, a first overflowing surface arranged on the outer periphery of the generating core part and a second overflowing surface connected with the outer periphery of the first overflowing surface and the inner periphery of a connecting through hole at one end of the assembly shell, and the generating core part is electrically connected with the battery assembly; the fixed shaft is arranged in a direction which can enable the first flow surface to be parallel to the connecting through holes at the two ends of the component shell when the generator set swings to the lowest position; the first overflowing surface is an elastic overflowing surface;
the data acquisition assembly comprises two pressure sensors which are respectively arranged in front of the valve and behind the valve.
2. The self-generating multifunctional pressure reducing valve according to claim 1, wherein the return spring is a torsion spring, the torsion spring comprises an elastic part and a first end part and a second end part which are positioned at two ends of the elastic part, the elastic part is fixedly sleeved on the outer surface of the fixed shaft, the first end part is in contact with the inner wall of the component shell to serve as a return fulcrum, and the second end part is in contact with the generator set.
3. The self-generating multifunctional pressure reducing valve according to claim 1, wherein the battery assembly comprises a rectifying module, a filtering module, a pressure reducing module and a rechargeable battery which are sequentially connected, and the rechargeable battery is electrically connected with the data acquisition assembly, the data processing and display terminal respectively.
4. The self-generating multifunctional pressure reducing valve according to claim 1, 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 small-caliber end of the conical flow guide surface is connected with the end part of the cylindrical flow guide surface, 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 connecting through hole of the power generation.
5. The self-generating multifunctional pressure reducing valve according to claim 1, wherein the data acquisition assembly further comprises one or more of a temperature sensor, a flow metering device and a water quality sensor.
6. The self-generating multifunctional pressure reducing valve according to claim 5, wherein the data processing and display terminal comprises a PLC processor and a display screen which are electrically connected with each other.
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| CN201711034724.8A CN107859779B (en) | 2017-10-30 | 2017-10-30 | Self-generating multifunctional pressure reducing valve and control method thereof |
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| CN206376320U (en) * | 2016-12-05 | 2017-08-04 | 常州汉腾自动化设备有限公司 | Can wireless monitor regulating valve tap water pipe network system |
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2017
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| JPS5765870A (en) * | 1980-10-09 | 1982-04-21 | Hitachi Ltd | Cylindrical water-wheel type electrical rotary machnery |
| CN102003216A (en) * | 2009-09-01 | 2011-04-06 | 吴中平 | Fluidic kinetic energy generating set |
| CN202140231U (en) * | 2011-05-07 | 2012-02-08 | 欧开亿 | Pipeline vacuum hydrogenerator |
| CN204239134U (en) * | 2014-11-23 | 2015-04-01 | 广东梅雁吉祥水电股份有限公司 | A kind of new-type pipe type power generation device |
| CN206376320U (en) * | 2016-12-05 | 2017-08-04 | 常州汉腾自动化设备有限公司 | Can wireless monitor regulating valve tap water pipe network system |
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| CN107859779A (en) | 2018-03-30 |
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