Integrated electromagnetic pressure reducing valve
Through the design of the integrated solenoid pressure reducing valve, the problems of complex structure and poor performance of the traditional solenoid pressure reducing valve are solved, and two-stage pressure reduction and automatic control are realized, ensuring the safety of the hydrogen supply system and fuel cell, reducing the pressure of the hydrogen supply system and preventing hydrogen leakage.
Patent Information
- Application Number
- CN202422168067.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-09-05
AI Technical Summary
The traditional solenoid pressure reducing valve has a complex structure and a single function. The pressure reduction method is a single stage, and its performance is poor.
An integrated solenoid pressure reducing valve is designed, including solenoid valve, pressure relief valve, air inlet, breathing port and pressure sensor interface, achieving two-stage pressure reduction, combining automatic control function, integrating pressure relief valve and pressure sensor to ensure the safety of the hydrogen supply system and fuel cell.
It has achieved efficient reduction of the pipeline pressure of the hydrogen supply system, from 35 MPa to 1-3 MPa, ensuring the stable operation of the fuel cell, compact structure and lightweight, saving material and processing costs, strong durability, preventing hydrogen leakage, and protecting the system safety.
Smart Images
Figure CN223227932U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field related to electromagnetic pressure reducing valves, and in particular relates to an integrated electromagnetic pressure reducing valve. Background Art
[0002] A solenoid pressure reducing valve utilizes electromagnetic control to automatically reduce pipeline operating pressure. It reduces high pressure in the pipeline upstream of the valve to the required level downstream. It is widely used in high-rise buildings, urban water supply networks, mines, and other applications requiring pressure regulation. Solenoid pressure reducing valves typically feature a simple structure, easy installation and maintenance, a simple automatic control system, low cost, fast response time, and significant energy savings.
[0003] However, the traditional electromagnetic pressure reducing valve has a relatively complex structure and a single function, and its pressure reducing method is usually single-stage pressure reducing, and its performance is relatively poor.
[0004] The utility model improves the above-mentioned problem and specifically relates to an integrated electromagnetic pressure reducing valve. Utility Model Content
[0005] The purpose of the present invention is to provide an integrated electromagnetic pressure reducing valve to solve the problems in the above background technology that the traditional electromagnetic pressure reducing valve is relatively complex in structure and single in function, and its pressure reducing method is usually single-stage pressure reducing and has relatively poor performance.
[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: an integrated electromagnetic pressure reducing valve, comprising an electromagnetic pressure reducing valve body and an air outlet column arranged at the right side of the electromagnetic pressure reducing valve body;
[0007] An electromagnetic valve is provided at the upper side of the electromagnetic pressure reducing valve body, a pressure relief valve is provided at the upper side of the outlet pipe column, an air inlet is provided at the left side of the electromagnetic pressure reducing valve body, a breathing port 2 is provided at the bottom side of the air inlet, a breathing port 1 is provided at the bottom of the outlet pipe column, and a pressure sensor interface is provided at the right side of the breathing port 1. The electromagnetic pressure reducing valve body is a key device of a high-pressure hydrogen supply pipeline, and its function is to reduce the gas pressure in the hydrogen supply system pipeline from 35 MPa to 1 to 3 MPa, thereby ensuring the stable operation of the fuel cell and not being affected by high-pressure impact, and can automatically cut off the pipeline gas flow according to the operating conditions.
[0008] Preferably, the pressure sensor interface is formed as an air outlet pipe column structure, and the electromagnetic pressure reducing valve body is connected to an external sensor receiving device through the pressure sensor interface.
[0009] Preferably, the breathing port 1 and the breathing port 2 are both integrated with the electromagnetic pressure reducing valve body, and an interception net is provided in the breathing port 1 and the breathing port 2.
[0010] Preferably, a first-level valve stem is provided at a position in the electromagnetic pressure-reducing valve body at the second breathing port position, and the first-level valve stem is installed and connected to the electromagnetic pressure-reducing valve body through a thread.
[0011] Preferably, a secondary valve stem is provided at an inner position of the air outlet pipe column and at an upper side position of the breathing port, and the secondary valve stem is connected to the air outlet pipe column through a thread.
[0012] Preferably, a thread is provided on the outer side surface of the air inlet, and the air inlet and the electromagnetic pressure reducing valve body are an integrated structure.
[0013] Preferably, an external connecting sleeve is provided at the outer position of the air inlet, an internal connecting rubber airbag ring is provided at the middle side position of the external connecting sleeve, a telescopic connecting ring body is provided at the left position of the external connecting sleeve, a limited connecting rotating track is provided at the side position of the telescopic connecting ring body, a rotating extrusion ring is provided at the side position of the limited connecting rotating track, and threads are provided at the inner side positions of the rotating extrusion ring and the external connecting sleeve. Rotating the rotating extrusion ring can squeeze the telescopic connecting ring body to discharge the gas into the inner connecting rubber airbag ring so that it expands laterally.
[0014] Compared with the prior art, the present invention provides an integrated electromagnetic pressure reducing valve with the following beneficial effects:
[0015] In the integrated electromagnetic pressure reducing valve, a solenoid valve is provided at the upper side of the electromagnetic pressure reducing valve body, a pressure relief valve is provided at the upper side of the outlet pipe column, an air inlet is provided at the left side of the electromagnetic pressure reducing valve body, a breathing port 2 is provided at the bottom side of the air inlet, a breathing port 1 is provided at the bottom position of the outlet pipe column, and a pressure sensor interface is provided at the right side of the breathing port 1. The electromagnetic pressure reducing valve body is a key device for a high-pressure hydrogen supply pipeline. Its function is to reduce the gas pressure in the hydrogen supply system pipeline from 35 MPa to 1 to 3 MPa, to ensure the stable operation of the fuel cell without being impacted by high pressure, and to automatically cut off the gas flow in the pipeline according to the working conditions. The improved electromagnetic pressure reducing valve of the utility model has a compact layout, a simple structure, and is lightweight, saving material and processing costs. It has a two-stage pressure reducing function, stable performance, simple structure, and strong durability. It integrates an automatic valve function to automatically control the on and off of the pipeline to protect the safety of the hydrogen supply system and the fuel cell. It integrates a pressure relief valve and a pressure sensor to protect the safety of the hydrogen supply system and the fuel cell.
[0016] In the integrated electromagnetic pressure reducing valve, an external connecting sleeve is provided at the outer position of the air inlet, an internal connecting rubber airbag ring is provided at the middle side position of the external connecting sleeve, a telescopic connecting ring body is provided at the left position of the external connecting sleeve, a limited connecting rotating track is provided at the side position of the telescopic connecting ring body, a rotating extrusion ring is provided at the side position of the limited connecting rotating track, and threads are provided at the inner side positions of the rotating extrusion ring and the external connecting sleeve. Rotating the rotating extrusion ring can squeeze the telescopic connecting ring body to discharge the gas into the inner connecting rubber airbag ring so that it expands laterally. The expanded rubber airbag ring can squeeze the air inlet at the interface of the external connecting pipe, which can increase the friction between the external connecting sleeve and the air inlet and the external connecting pipe, thereby avoiding the rotation loosening due to the vibration generated by the operation of the components. At the same time, the inner connecting rubber airbag ring is expanded and extruded tightly to improve its connection tightness, effectively preventing the occurrence of dangerous phenomena caused by hydrogen leakage. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the overall structure of the integrated electromagnetic pressure reducing valve of the present utility model.
[0018] Figure 2 This is a front view structural diagram of the integrated electromagnetic pressure reducing valve of the present utility model.
[0019] Figure 3 This is a schematic diagram of the front cross-sectional structure of the integrated electromagnetic pressure reducing valve of the present utility model.
[0020] Figure 4 This is an enlarged structural diagram of the integrated electromagnetic pressure reducing valve at position A of the present utility model.
[0021] In the figure: 1. Solenoid pressure reducing valve body; 2. Solenoid valve; 3. Pressure relief valve; 4. Outlet pipe column; 5. Outlet; 6. Breathing port 1; 7. Inlet; 8. Breathing port 2; 9. Pressure sensor interface; 10. Secondary valve stem; 11. Primary valve stem; 12. External connecting sleeve; 13. Inner connecting rubber airbag ring; 14. Telescopic connecting ring body; 15. Rotating extrusion ring; 16. Limiting connecting rotating track. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] The utility model provides Figure 1-4As shown, an integrated electromagnetic pressure reducing valve comprises an electromagnetic pressure reducing valve body 1 and an air outlet column 4 arranged at the right side of the electromagnetic pressure reducing valve body 1; an electromagnetic valve 2 is arranged at the upper side of the electromagnetic pressure reducing valve body 1, a pressure relief valve 3 is arranged at the upper side of the air outlet column 4, an air inlet 7 is arranged at the left side of the electromagnetic pressure reducing valve body 1, a breathing port 2 8 is arranged at the bottom side of the air inlet 7, a breathing port 1 6 is arranged at the bottom position of the air outlet column 4, and a pressure sensor interface 9 is arranged at the right side position of the breathing port 1 6. The electromagnetic pressure reducing valve body 1 is a key device of a high-pressure hydrogen supply pipeline, which is used as The purpose is to reduce the gas pressure in the hydrogen supply system pipeline from 35 MPa to 1 to 3 MPa, so as to ensure the stable operation of the fuel cell and not be affected by high-pressure shock. It can also automatically cut off the gas flow in the pipeline according to the operating conditions. The improved electromagnetic pressure reducing valve of the utility model has a compact layout, a simple structure, and is lightweight, saving material costs and processing costs. It has a two-stage pressure reducing function, stable performance, a simple structure, and strong durability. It integrates an automatic valve function, automatically controls the on-off of the pipeline, protects the safety of the hydrogen supply system and the fuel cell, and integrates a pressure relief valve and a pressure sensor to protect the safety of the hydrogen supply system and the fuel cell.
[0024] like Figure 3 As shown, the pressure sensor interface 9 is formed by the outlet pipe column 4 structure, and the electromagnetic pressure reducing valve body 1 is connected with the external sensor receiving device through the pressure sensor interface 9. After the connection, the data received by the pressure sensor can be transmitted to the outside for the user to receive and observe.
[0025] like Figure 3 As shown, the breathing port 1 6 and the breathing port 2 8 are both integrated with the electromagnetic pressure reducing valve body 1, and an interception net is provided in the breathing port 1 6 and the breathing port 2 8. The setting of the interception net can prevent the dust from the outside from entering and affecting the operation of the internal components of the electromagnetic pressure reducing valve body 1.
[0026] like Figure 3 As shown, the electromagnetic pressure reducing valve body 1 is provided with a first-level valve stem 11 at the position of the breathing port 2 8, and the first-level valve stem 11 is installed and connected to the electromagnetic pressure reducing valve body 1 through a thread. The inner position of the outlet pipe column 4 and the second-level valve stem 10 is provided at the upper side position of the breathing port 1 6, and the second-level valve stem 10 is connected to the outlet pipe column 4 through a thread.
[0027] like Figure 4As shown, a thread is provided at the outer side surface of the air inlet 7, the air inlet 7 and the electromagnetic pressure reducing valve body 1 are an integrated structure, an outer connecting sleeve 12 is provided at the outer side of the air inlet 7, an inner connecting rubber airbag ring 13 is provided at the middle side surface of the outer connecting sleeve 12, a telescopic connecting ring body 14 is provided at the left side of the outer connecting sleeve 12, a limited connection rotating track 16 is provided at the side position of the telescopic connecting ring body 14, a rotating extrusion ring 15 is provided at the side position of the limited connection rotating track 16, and the rotating extrusion ring 15 and the inner side of the outer connecting sleeve 12 are connected. A thread is provided at the surface position. Rotating the extrusion ring 15 can squeeze the telescopic connecting ring body 14 to discharge the gas into the inner connecting rubber airbag ring 13 so that it expands to the side. The expanded rubber airbag ring can squeeze the air inlet 7 at the interface of the external connecting pipe, which can increase the friction between the external connecting sleeve 12 and the air inlet 7 and the external connecting pipe, thereby avoiding the vibration caused by the operation of the components and causing it to rotate loose. At the same time, the inner connecting rubber airbag ring 13 is expanded and squeezed tightly to improve its connection tightness, effectively preventing the occurrence of dangerous phenomena caused by hydrogen leakage.
[0028] When working, this device is installed in the high-pressure hydrogen supply pipeline. It is the most important device before hydrogen enters the fuel cell. The solenoid valve 2 is in a normally closed state. When working, 35 MPa high-pressure hydrogen is input from the air inlet 7 and passes through the solenoid valve 2. At this time, the solenoid valve 2 automatically opens and goes to the first-level pressure reducing part to reduce the gas pressure by about 80% to 90%. The gas then flows into the second-level part and continues to reduce the pressure to meet the use requirements of the fuel cell. The solenoid valve 2 is generally in a normally closed state. When the system starts working and the fuel cell needs hydrogen, the controller controls the solenoid valve 2 to open, so that the pipeline is unblocked and hydrogen flows to the fuel cell. When the system stops working, the controller controls the solenoid valve 2 to close and cut off the gas flow in the pipeline. When the system gas pressure fluctuates or the system is damaged, As the pressure rises, the pressure in the secondary pressure reducing part also rises. When it reaches the critical value of the pressure relief valve 3, the core of the pressure relief valve 3 opens, and the gas is discharged through the pressure relief valve 3, reducing the system pressure, ensuring the safety of the system, and protecting the fuel cell; the breathing port is installed in the primary pressure reducing part and the secondary pressure reducing part respectively. When the pressure reducing valve is working, the primary valve stem 11 and the secondary valve stem 10 move, and the volume of the cavity between the two sealing surfaces of the valve stem combination will change accordingly, and the gas in the cavity will flow in and out. The breathing port is equipped with a waterproof and breathable filter device to prevent impurities from contaminating the cavity and sealing elements, which will cause the pressure reducing valve to fail; the pressure sensor is installed in the secondary pressure reducing part to monitor the gas pressure in the secondary pressure reducing part, and the signal is transmitted to the controller, so that the controller can grasp the gas parameters at any time and make a response action.
[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. An integrated electromagnetic pressure reducing valve, comprising an electromagnetic pressure reducing valve body (1) and an air outlet pipe column (4) arranged at the right side of the electromagnetic pressure reducing valve body (1); characterized in that: The electromagnetic pressure reducing valve body (1) is provided with an electromagnetic valve (2) at the upper side position, the outlet pipe column (4) is provided with a pressure relief valve (3), the electromagnetic pressure reducing valve body (1) is provided with an air inlet (7) at the left side position, the air inlet (7) is provided with a second breathing port (8) at the bottom side position, the outlet pipe column (4) is provided with a first breathing port (6) at the bottom position, and the right side position of the first breathing port (6) is provided with a pressure sensor interface (9). The electromagnetic pressure reducing valve body (1) is a key device of a high-pressure hydrogen supply pipeline, and its function is to reduce the gas pressure in the hydrogen supply system pipeline from 35 MPa to 1 to 3 MPa, so as to ensure the stable operation of the fuel cell without being impacted by high pressure, and can automatically cut off the gas flow in the pipeline according to the operating conditions.
2. The integrated electromagnetic pressure reducing valve according to claim 1, characterized in that: The pressure sensor interface (9) is formed by the structure of the air outlet pipe column (4), and the electromagnetic pressure reducing valve body (1) is connected to an external sensor receiving device through the pressure sensor interface (9).
3. The integrated electromagnetic pressure reducing valve according to claim 1, characterized in that: The breathing port 1 (6) and the breathing port 2 (8) are both integrated with the electromagnetic pressure reducing valve body (1), and an interception net is provided in the breathing port 1 (6) and the breathing port 2 (8).
4. The integrated electromagnetic pressure reducing valve according to claim 1, characterized in that: A first-stage valve stem (11) is provided at a position of the second breathing port (8) in the middle of the electromagnetic pressure reducing valve body (1), and the first-stage valve stem (11) is installed and connected to the electromagnetic pressure reducing valve body (1) through a thread.
5. The integrated electromagnetic pressure reducing valve according to claim 1, characterized in that: A secondary valve stem (10) is provided at an internal position of the air outlet pipe column (4) and at an upper side position of the breathing port 1 (6), and the secondary valve stem (10) is connected to the air outlet pipe column (4) via a thread.
6. The integrated electromagnetic pressure reducing valve according to claim 1, characterized in that: A thread is provided on the outer side surface of the air inlet (7), and the air inlet (7) and the electromagnetic pressure reducing valve body (1) are an integrated structure.
7. The integrated electromagnetic pressure reducing valve according to claim 1, characterized in that: An outer connecting sleeve (12) is provided at an outer position of the air inlet (7), an inner connecting rubber airbag ring (13) is provided at a middle side position of the outer connecting sleeve (12), a telescopic connecting ring body (14) is provided at a left position of the outer connecting sleeve (12), a limited connecting rotating track (16) is provided at a side position of the telescopic connecting ring body (14), a rotating extrusion ring (15) is provided at a side position of the limited connecting rotating track (16), and threads are provided at the inner side positions of the rotating extrusion ring (15) and the outer connecting sleeve (12), and rotating the rotating extrusion ring (15) can squeeze the telescopic connecting ring body (14) to discharge gas into the inner connecting rubber airbag ring (13) so that it expands laterally.