CN116164136A - Electronic pressure regulating valve applied to energy storage power generation system - Google Patents
Electronic pressure regulating valve applied to energy storage power generation system Download PDFInfo
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- CN116164136A CN116164136A CN202310114512.XA CN202310114512A CN116164136A CN 116164136 A CN116164136 A CN 116164136A CN 202310114512 A CN202310114512 A CN 202310114512A CN 116164136 A CN116164136 A CN 116164136A
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- pressure
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- regulating valve
- pressure regulating
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
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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
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses an electronic pressure regulating valve applied to an energy storage power generation system, which relates to the technical field of energy storage power generation and comprises an electronic pressure regulating valve module, wherein the electronic pressure regulating valve module comprises a valve cavity and an electronic pressure regulating valve part, the valve cavity is divided into a high-pressure part and a low-pressure part, and the volumes of the high-pressure part and the low-pressure part are respectively formed into a valve high-pressure cavity and a valve low-pressure cavity through a 2:8 proportion division design. The invention adopts a scheme of alternately regulating a plurality of groups of small-caliber direct-acting electronic pressure regulating valve cores, not only meets the requirement of a pressure regulating function when the inlet pressure is high, but also meets the flow requirement when the inlet pressure is low, and ensures the stability of the downstream pressure and the design target of low power consumption by alternately regulating the control strategy of the electronic pressure regulating valve through an algorithm, thereby leading the electronic pressure regulating valve module to be capable of realizing the functions of quick response and stable output of the outlet pressure and realizing the defects of the prior art.
Description
Technical Field
The invention relates to the technical field of energy storage and power generation, in particular to an electronic pressure regulating valve applied to an energy storage and power generation system.
Background
At present, a large-power (single set is more than or equal to 500 kw) energy storage power generation unit is mainly prepared on site in the main fuel gas (natural gas, hydrogen and the like) supply channels, and the storage mode is divided into: the method adopts a mode of storing a large-capacity spherical storage tank at low pressure (less than or equal to 4 bar) and storing the spherical storage tank by using a medium-and small-sized high-pressure storage tank pressurized to a higher pressure (up to 25 barg) by using a compressor, and because the 2 gas storage modes exist in an application scene, the requirement of wider redundancy (3 bar-25 bar) is provided for the inlet pressure range of an air inlet pressure regulating valve of an energy storage power generation unit. Most of the existing pressure regulating valve products are electronic pressure regulating valves with mechanical pressure regulating valves (the downstream fixed pressure range of the pressure regulating valves can not meet the pressure change requirement of the power generation system for multi-working-point operation) and narrow inlet ranges (3+/-1 barg, 10+/-2 barg and the like).
Therefore, it is necessary to provide an electronic pressure regulating valve applied to an energy storage power generation system to solve the above problems.
Disclosure of Invention
The invention aims to provide an electronic pressure regulating valve applied to an energy storage power generation system, which can realize quick response, stability and adjustability of redundant wide inlet pressure range and outlet pressure (the inlet range can reach 3-25 barg, the outlet electronic adjustability range is 0-3barg, and the response time is less than or equal to 10 ms), and effectively solve the defects in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an be applied to energy storage power generation system's electron air-vent valve, includes electron air-vent valve module, electron air-vent valve module includes valve cavity and electron air-vent valve part, the valve cavity divide into high pressure part and low pressure part, and the volume of high pressure part and low pressure part is through 2:8 proportion segmentation design and is formed valve high pressure cavity and valve low pressure chamber respectively, electron air-vent valve part includes small-bore direct-acting electron air-vent valve core, and small-bore direct-acting electron air-vent valve core includes electromagnetic actuator and air-vent valve core, the air-vent valve core is provided with the multiunit, is provided with multiunit opening between valve high pressure cavity and the valve low pressure chamber, multiunit air-vent valve core sets up in the open position that corresponds respectively, electromagnetic actuator is connected with the air-vent valve core.
Preferably, a high-pressure air inlet connector is arranged on one side of the valve high-pressure cavity, a high-pressure sensor is arranged on the valve high-pressure cavity, and the high-pressure sensor is connected with the controller.
Preferably, one side of the valve low pressure cavity is provided with a low pressure air outlet connector, and the low pressure air outlet connector is also provided with a mechanical pressure safety valve.
Preferably, a low pressure sensor is arranged on the valve low pressure cavity, and the low pressure sensor is connected with the controller.
Preferably, the electromagnetic actuator is connected with a controller.
Preferably, the electromagnetic actuator is controlled by PWM, the frequency is in an adjustable range of 0-100Hz, and the total power supply is less than 400W.
The invention has the technical effects and advantages that:
1. the invention adopts a scheme of alternately regulating a plurality of groups of small-caliber direct-acting electronic pressure regulating valve cores (consisting of electromagnetic actuators and pressure regulating valve cores), not only meets the requirement of pressure regulating function in the case of high inlet pressure, but also meets the requirement of flow in the case of low inlet pressure, and ensures the stability of downstream pressure and the design goal of low power consumption through the control strategy of alternately regulating the electronic pressure regulating valve by an algorithm, thereby ensuring that the electronic pressure regulating valve module can redundancy a wider inlet pressure range and complete the functions of quick response and stable output of outlet pressure, effectively solving the defects in the prior art, solving the problem of customer pain points in the practical application of low noise, low flow resistance, condensation and icing prevention, accurate pressure sensor measuring point and the like through the volume proportion of a valve high-low pressure cavity and the special flow channel design, and ensuring that the safety part adopts the double protection of a controller algorithm protection and a mechanical pressure safety valve to achieve the design requirement of safety and reliability.
Drawings
Fig. 1 is a schematic diagram of an electronic pressure regulating valve according to the present invention.
In the figure: the high-pressure air inlet joint 1, the high-pressure sensor 2, the valve high-pressure cavity 3, the controller 4, the valve low-pressure cavity 5, the electromagnetic actuator 6, the pressure regulating valve core 7, the low-pressure sensor 8, the mechanical pressure safety valve 9 and the low-pressure air outlet joint 10.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides an electronic pressure regulating valve applied to an energy storage power generation system as shown in fig. 1, which comprises an electronic pressure regulating valve module, wherein the electronic pressure regulating valve module comprises a valve cavity and an electronic pressure regulating valve part, the valve cavity is divided into a high-pressure part and a low-pressure part, the volumes of the high-pressure part and the low-pressure part are respectively formed into a valve high-pressure cavity 3 and a valve low-pressure cavity 5 through a 2:8 proportion division design, the electronic pressure regulating valve part comprises a small-caliber direct-acting electronic pressure regulating valve core, the small-caliber direct-acting electronic pressure regulating valve core comprises an electromagnetic actuator 6 and a pressure regulating valve core 7, the pressure regulating valve core 7 is provided with a plurality of groups, a plurality of groups of openings are arranged between the valve high-pressure cavity 3 and the valve low-pressure cavity 5, and the plurality of groups of pressure regulating valve cores 7 are respectively arranged at corresponding opening positions, and the electromagnetic actuator 6 is connected with the pressure regulating valve core 7.
One side of the valve high-pressure cavity 3 is provided with a high-pressure air inlet joint 1, the valve high-pressure cavity 3 is provided with a high-pressure sensor 2, and the high-pressure sensor 2 is connected with a controller 4.
One side of the valve low-pressure cavity 5 is provided with a low-pressure outlet joint 10, and the low-pressure outlet joint 10 is also provided with a mechanical pressure safety valve 9.
The valve low-pressure cavity 5 is provided with a low-pressure sensor 8, and the low-pressure sensor 8 is connected with the controller 4.
The electromagnetic actuator 6 is connected to the controller 4.
The electromagnetic actuator 6 adopts PWM control, the frequency is in an adjustable range of 0-100Hz, and the total power supply power is less than 400W.
In general, the fuel gas storage mode of the high-power generation unit is divided into a mode of storing by adopting a high-capacity spherical storage tank with low pressure (less than or equal to 4 bar) and a mode of storing by utilizing a medium-and small-sized high-pressure storage tank pressurized to a higher pressure (up to 25 barg) by a compressor, and as the 2 gas storage modes exist in an application scene, the requirement of wider redundancy (3 bar-25 bar) is provided for the inlet pressure range of an air inlet pressure regulating valve of the energy storage power generation unit. The invention adopts a module scheme of integrating a plurality of groups of high-voltage electronic pressure regulating valves, controllers, pressure sensors, safety valves and the like, and provides a design requirement for effectively solving the accurate regulation of wide inlet pressure and outlet pressure.
Valve cavity and sensor part:
aiming at the design requirements of large flow rate, high requirement on outlet pressure stability, high pressure response speed and the like of the power generation module, the valve cavity of the electronic pressure regulating valve module of the device adopts an aluminum alloy material and pressure bearing structural design, and the maximum pressure bearing capacity of the valve cavity reaches 100barg through mechanical simulation and pressure resistance test, so that the device can ensure lighter weight while meeting the strength. The internal part of the valve cavity is verified by fluid simulation calculation and practical tests, so that the accuracy of the measuring point positions of the inlet and outlet sensors is guaranteed to be the highest, condensed water can not freeze at the orifice of the sensor when the valve cavity can be operated in a low-temperature environment, and a sensor interface can not be blocked.
The volumes of the high-pressure part and the low-pressure part of the valve cavity are designed in a 2:8 partition mode, so that the high-pressure cavity of the regulating module forms a small buffer chamber, stability of upstream air supply pressure during operation of the electronic pressure regulating valve is guaranteed, meanwhile, low-frequency noise caused by gas friction of the wall surface is a common user experience problem of many electronic pressure regulating valves due to the fact that the gas flow rate of the high-pressure part is high, and when the valve is in actual use, the design of a special flow passage and the buffer chamber is adopted in the high-pressure cavity part, flow resistance and pressure drop are guaranteed to meet design requirements, meanwhile, flow speed is reduced as much as possible, and accordingly the problem of low-frequency noise is effectively solved. The low-pressure cavity part adopts a smooth flow passage design, and a hydrophobic coating is added on the surface, so that the flow resistance caused by water vapor is reduced, and the stability of outlet pressure (+ -0.015 barg) and the response speed of pressure regulation (< 10 ms) are both superior to those of the existing product.
An electronic pressure regulating valve part:
the electronic pressure regulating valve part provided by the device adopts a scheme of alternately regulating a plurality of groups of small-caliber direct-acting electronic pressure regulating valve cores (consisting of an electromagnetic actuator 6 and a pressure regulating valve core 7), and the smaller the caliber of the pressure regulating valve core 7 is, the lower the electromagnetic force required for opening is, so that under the input condition of the same coil and power supply current, the smaller the caliber of the valve core is, the higher the upstream high-pressure inlet pressure which can be redundant is, and the small-caliber valve is adopted in the scheme to meet the high-inlet pressure (20-25 barg) working section of the design requirement. However, the structure has the defect that the adjusting response speed is slow (more than or equal to 80 ms) and the requirement of quick response and pressure adjustment of the electronic pressure regulating valve (less than or equal to 10 ms) cannot be met. Therefore, the design scheme of the device is that a small-caliber direct-acting electronic pressure regulating valve core is designed.
When the inlet pressure is low (4-10 barg), the flow area is limited by the small caliber, and the flow requirement cannot be met, so that the scheme adopts a mode of connecting multiple groups of small caliber valve cores in parallel, thereby meeting the pressure regulating function requirement when the inlet pressure is high, meeting the flow requirement when the inlet pressure is low, and ensuring the stability of the downstream pressure through a control strategy of alternately regulating the electronic pressure regulating valve by an algorithm. Therefore, a plurality of groups (more than or equal to 2) of fast-response electronic pressure regulating valve cores are adopted to form the electronic pressure regulating valve module.
Controller 4 and control scheme part:
the electromagnetic actuator 6 of the device adopts PWM control, the frequency is in an adjustable range of 0-100Hz, the total power supply is less than 400W, the bottom layer of the controller 4 is provided with a high-speed PID regulating algorithm, and the duty ratio of PWM waves can be regulated according to different outlet pressure demands, so that the electronic pressure regulating valve can ensure the stability of the outlet pressure in the time of a regulating period of 10ms at the shortest. The controller 6 can dynamically adjust the working quantity of the valve cores of the electronic pressure regulating valve by reading the pressure sensors of the inlet and the outlet (for example, when the inlet pressure is higher, only 1 or 2 electronic pressure regulating valve cores are opened, and when the inlet pressure is lower, a plurality of electronic pressure regulating valve cores or all electronic pressure regulating valve cores are opened), so that the whole module is kept in the working state of optimal power consumption, opening frequency, outlet pressure and output flow in real time, and finally the service life and stability of the whole module are ensured. (the service life is more than or equal to 30000 h).
Working principle:
pressure regulation mode: the high-pressure inlet adopts a radially sealed high-pressure air inlet joint 1, a filter with the precision reaching 10 mu m is arranged on the joint, the cleanliness of a module can be effectively filtered, a high-pressure sensor 2 is arranged on a valve high-pressure cavity 3 and is responsible for measuring the inlet fuel gas pressure of the module, a pressure signal is transmitted to a controller 4, an electromagnetic actuator 6 and an electronic signal of a low-pressure sensor 8 are connected with the controller 4, the controller 4 adopts an intelligent PID algorithm stroke control strategy by reading the inlet fuel gas pressure and the downstream required gas pressure, the control strategy is transmitted to the electromagnetic actuator 6 in a PWM wave mode, the electromagnetic actuator 6 responds to generate electromagnetic force so as to enable a pressure regulating valve core 7 to displace until the pressure of a valve low-pressure cavity 5 reaches a set value, final gas flows out from a low-pressure outlet joint 10, the low-pressure outlet joint is of a design requirement of different downstream interfaces for quick replacement type, a mechanical pressure safety valve 9 is also arranged on the low-pressure outlet joint 10, and when the controller 4 is out of control algorithm, the mechanical pressure safety valve 9 is started to empty the valve high-pressure cavity 3 and the valve low-pressure cavity 5, so that the downstream components are protected from being damaged by high-pressure impact.
Stable operation mode: when the downstream of the electronic pressure regulating valve module enters steady state operation, the controller 4 will adjust the duty ratio of the PWM wave to a relatively steady state, so that the electromagnetic actuator 6 enters the pressure maintaining stage, and the power consumption of the whole electromagnetic pressure regulating valve module will be reduced to a lower level at this time, thereby achieving the purpose of energy saving.
Claims (5)
1. The utility model provides an be applied to energy storage power generation system's electron air-vent valve, includes electron air-vent valve module, its characterized in that: the electronic pressure regulating valve comprises a valve cavity and an electronic pressure regulating valve portion, the valve cavity is divided into a high-pressure portion and a low-pressure portion, volumes of the high-pressure portion and the low-pressure portion are divided into a valve high-pressure cavity (3) and a valve low-pressure cavity (5) through a proportion of 2:8, the electronic pressure regulating valve portion comprises a small-caliber direct-acting electronic pressure regulating valve core, the small-caliber direct-acting electronic pressure regulating valve core comprises an electromagnetic actuator (6) and a pressure regulating valve core (7), a plurality of groups of openings are formed in the pressure regulating valve core (7), a plurality of groups of openings are formed between the valve high-pressure cavity (3) and the valve low-pressure cavity (5), the pressure regulating valve cores (7) are respectively arranged at corresponding opening positions, and the electromagnetic actuator (6) is connected with the pressure regulating valve core (7).
2. The electronic pressure regulating valve for an energy storage power generation system according to claim 1, wherein: one side of the valve high-pressure cavity (3) is provided with a high-pressure air inlet joint (1), the valve high-pressure cavity (3) is provided with a high-pressure sensor (2), and the high-pressure sensor (2) is connected with a controller (4).
3. The electronic pressure regulating valve for use in an energy storage power generation system according to claim 2, wherein: one side of the valve low-pressure cavity (5) is provided with a low-pressure air outlet joint (10), and the low-pressure air outlet joint (10) is also provided with a mechanical pressure safety valve (9).
4. An electronic pressure regulating valve for use in an energy storage power generation system according to claim 3, wherein: the valve low-pressure cavity (5) is provided with a low-pressure sensor (8), and the low-pressure sensor (8) is connected with the controller (4).
5. The electronic pressure regulating valve for use in an energy storage power generation system according to claim 4, wherein: the electromagnetic actuator (6) is connected with the controller (4).
The electronic pressure regulating valve for use in an energy storage power generation system according to claim 5, wherein: the electromagnetic actuator (6) adopts PWM control, the frequency is in an adjustable range of 0-100Hz, and the total power supply is less than 400W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310114512.XA CN116164136A (en) | 2023-02-14 | 2023-02-14 | Electronic pressure regulating valve applied to energy storage power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310114512.XA CN116164136A (en) | 2023-02-14 | 2023-02-14 | Electronic pressure regulating valve applied to energy storage power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116164136A true CN116164136A (en) | 2023-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310114512.XA Pending CN116164136A (en) | 2023-02-14 | 2023-02-14 | Electronic pressure regulating valve applied to energy storage power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116164136A (en) |
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2023
- 2023-02-14 CN CN202310114512.XA patent/CN116164136A/en active Pending
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