A hydrogen production pipe flow regulating valve and regulating method

Abstract

The present invention discloses a flow regulating valve and regulating method for a hydrogen production pipe, comprising a hydrogen production pipe and a regulating valve assembly, wherein the regulating valve assembly comprises a flow regulating pipe and a flow pipe, wherein the input end of the flow pipe is connected to the output end of the hydrogen production pipe through the flow regulating pipe, wherein the flow pipe is provided with a buffer device and a plurality of flow pipes for releasing pressure and improving sealing performance, and an adjusting baffle for closing the flow pipe is provided at one end of the flow regulating pipe. Compared with the prior art, the present invention provides a plurality of flow pipes for the regulating valve, wherein the plurality of flow pipes can reduce the pressure exerted by hydrogen on the regulating valve, thereby improving the control degree and service life of the regulating valve, wherein the buffer elastic sleeve provided can transfer the pressure of hydrogen to the external rubber sleeve through the buffer elastic sleeve when the flow regulating valve is closed, thereby reducing the pressure exerted on the air pipe wall, and an auxiliary pressing device is provided between the flow regulating pipe and the flow pipe, wherein the closing part can be pulled closer when the valve is closed, thereby increasing the tightness of the closing part.

Description

Technical Field

[0001] The invention relates to the field of hydrogen production by electrolysis of water, and in particular to a flow regulating valve for a hydrogen production pipe and a regulating method. Background Art

[0002] The energy system composed of hydrogen energy and clean primary energy is considered to be the most promising energy system to replace fossil fuels. When producing hydrogen, the electrolysis of water is usually used. After hydrogen is precipitated by electrolysis of water, it is input into the hydrogen storage device through a hydrogen production pipe for storage.

[0003] In order to control the speed of hydrogen input, a regulating valve for adjusting the flow rate is usually connected to the hydrogen production pipe. At the moment when the control valve used to control the hydrogen flow rate is closed, the hydrogen that has not passed through will instantly accumulate at the regulating valve, which will cause the pressure at the regulating valve to increase instantly. This can easily cause the hydrogen production pipe to deform and be broken by pressure, and cause hydrogen leakage, and the service life of the regulating valve will also be affected. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a hydrogen production pipe flow control valve and a control method, change the existing control mode of the control valve, reduce the occurrence of valve leakage accidents, and improve the convenience and service life of the hydrogen production pipe flow control valve.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] Furthermore, it includes a hydrogen production pipe and a regulating valve assembly, the regulating valve assembly includes a flow regulating pipe and a flow tube, the input end of the flow tube is connected with the output end of the hydrogen production pipe through the flow regulating pipe, the flow tube is provided with a buffer device and multiple flow pipelines for releasing pressure and improving sealing, and one end of the flow regulating pipe is provided with a regulating baffle for closing the flow pipeline.

[0007] Furthermore, the flow regulating tube also includes a ring wall, a first slot and a second slot, one side of the ring wall is fixedly connected to the regulating baffle, the first slot is located on the inner wall of the ring wall, the second slot is arranged on the outer wall of the ring wall, the flow tube is connected to the inner wall of the ring wall through the first slot, the hydrogen production tube is connected to the outer wall of the ring wall through the second slot, and an adjusting handle for easy rotation is arranged on the ring wall.

[0008] Furthermore, the input end of the flow tube is a side end of the flow tube, the output end of the flow tube is provided with an output inner tube, the side end of the flow tube is provided with three flow pipelines, and the buffer device is located between the flow pipelines.

[0009] Furthermore, the buffer device is composed of a buffer elastic sleeve and an external rubber sleeve. The buffer elastic sleeve is located on the side end of the flow tube and is distributed between the circulation pipelines. The external rubber sleeve is fixedly connected to the buffer elastic sleeve. The external rubber sleeve is located at the junction between the flow tube and the first slot.

[0010] Furthermore, an auxiliary clamping device is provided between the flow regulating tube and the flow tube, and the auxiliary clamping device includes a connecting rod, a connecting groove, a screw and a spring, the connecting groove is located at the center of the side end of the flow tube, one end of the spring is fixedly connected to the bottom of the connecting groove, one end of the screw is fixedly connected to the other end of the spring, one end of the connecting rod is fixedly connected to the inner center of the adjusting baffle, and a threaded seat is provided at the bottom of the other end of the connecting rod, and the threaded seat is threadedly connected to the screw.

[0011] Furthermore, limiting devices are arranged on both sides of the screw rod, and the limiting devices include limiting grooves and clamping blocks, the clamping blocks are fixedly connected to the screw rod, the limiting grooves are arranged inside the connecting grooves, and the clamping blocks are clamped with the limiting grooves.

[0012] Furthermore, the shape of the adjustment baffle is a baffle composed of three circular baffles, wherein the three circular baffles are symmetrical with the center of the circle, and a rubber sealing strip is arranged under the three circular baffles.

[0013] Preferably, a flow detection sensor is provided in the output inner tube, and a sealing ring is provided at the connection seal between the hydrogen production tube and the flow regulating tube.

[0014] Furthermore, the adjustment handle is provided with a mark which can display the degree of closure of the circulation pipeline.

[0015] The present invention also provides a flow rate regulating method of a flow rate regulating valve of a hydrogen production pipe, comprising the following steps:

[0016] S1. Turn the adjustment handle on the ring wall to rotate the ring wall;

[0017] S1. When the mark on the adjustment handle reaches the required flow rate, stop turning the adjustment handle;

[0018] S2. When the indicator shows all closed, observe whether the flow detection sensor is leaking.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) In the present invention, by providing a plurality of flow pipelines of the regulating valve, and the plurality of flow pipelines are symmetrical in their centers, the speed of hydrogen can be slowed down when passing through the flow regulating valve, and the pressure it is subjected to can be reduced when the flow regulating valve is adjusted, thereby improving the control degree and service life of the regulating valve;

[0021] (2) In the present invention, by providing a buffer elastic sleeve, when the flow regulating valve is closed, the gas pressure of hydrogen will be transmitted to the external rubber sleeve through the buffer elastic sleeve, thereby reducing the pressure received by the trachea wall, preventing the trachea wall from being compressed and bursting when the pressure suddenly increases when the regulating valve is suddenly closed, and the external rubber sleeve receiving pressure can increase the sealing between it and the flow regulating pipe, thereby increasing the pressure-bearing capacity;

[0022] (3) In the present invention, by providing an auxiliary pressing device between the flow regulating tube and the flow tube, the closing portion can be pulled closer during closing to increase the tightness of the closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view cross-sectional structure schematic diagram of the present invention;

[0024] Figure 2 For the present invention Figure 1 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 3 It is a schematic diagram of the internal structure of the flow tube in the present invention;

[0026] Figure 4 For the present invention Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0027] Figure 5 It is a schematic diagram of the side view structure of the flow tube in the present invention;

[0028] Figure 6 This is a schematic diagram of the structure when the flow control valve of the present invention is opened;

[0029] Figure 7 It is a structural schematic diagram of the flow control valve when it is closed in the present invention;

[0030] Figure 8 It is a structural schematic diagram of the flow regulating tube in the present invention;

[0031] The names corresponding to the reference numerals are:

[0032] Flow regulating tube 1, hydrogen production tube 2, flow tube 3, sealing ring 4, adjusting baffle 101, ring wall 102, rubber sealing strip 103, connecting rod 104, threaded seat 105, first slot 106, second slot 107, adjusting handle 108, circulation pipeline 301, connecting slot 302, buffer elastic sleeve 303, external rubber sleeve 304, screw 305, flow tube side end 306, output inner tube 307, flow detection sensor 308, spring 309, limit slot 310, block 311. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The embodiments of the present invention include but are not limited to the following embodiments.

[0034] Example 1

[0035] refer to Figure 1 A hydrogen production pipe flow regulating valve and a regulating method described in this embodiment include a hydrogen production pipe 2 and a regulating valve assembly. The regulating valve assembly includes a flow regulating pipe 1 and a flow pipe 3. The input end of the flow pipe 3 is connected to the output end of the hydrogen production pipe 2 through the flow regulating pipe 1. The flow pipe 3 is provided with a buffer device for releasing pressure and improving sealing and a plurality of flow pipes 301. An adjusting baffle 101 for closing the flow pipe 301 is provided at one end of the flow pipe 3.

[0036] When in use, the flow regulating tube 1 and the flow tube 3 are snapped together. The flow regulating tube 1 is in the shape of a hollow tube with an adjusting baffle 101 at one end. The adjusting baffle 301 is provided with holes, and the flow regulating tube 1 and the flow tube 3 can rotate. When the hole on the adjusting baffle 301 is connected to the circulation pipeline 301, it is in an open state. By rotating the flow regulating tube 1 to make the hole and the circulation pipeline 301 staggered, the flow rate of hydrogen can be controlled. Buffer devices are distributed on the flow tube 3 to buffer the pressure of hydrogen.

[0037] refer to Figure 2 and Figure 8 The flow regulating tube 1 also includes an annular wall 102, a first groove 106 and a second groove 107. One side of the annular wall 102 is fixedly connected to the regulating baffle 101. The first groove 106 is located on the inner wall of the annular wall 102, and the second groove 107 is arranged on the outer wall of the annular wall 102. The flow tube 3 is connected to the inner wall of the annular wall 102 through the first groove 106, and the hydrogen production tube 2 is connected to the outer wall of the annular wall 102 through the second groove 107. An adjusting handle 108 for easy rotation is arranged on the annular wall 102, and a sealing ring 4 is arranged at the connection seal between the hydrogen production tube 2 and the flow regulating tube 1.

[0038] When in use, the inner side of the annular wall 102 is sleeved on the flow tube 3, and the annular wall 102 and the flow tube 3 are clamped with the first clamping groove 106 on the inner wall of the annular wall 102 through the clamping block on the outer wall of the flow tube 3, and the clamping block on the hydrogen production tube 2 is clamped with the second clamping groove 107 on the outer wall of the annular wall 102. Therefore, the hydrogen production tube 2, the flow regulating tube 1 and the flow tube 3 are connected together, and the flow regulating tube 1 can be rotated between the flow tube 3 and the hydrogen production tube 2 by rotating the adjustment handle 108.

[0039] refer to Figure 5 , Figure 6 as well as Figure 7The input end of the flow tube 3 is the flow tube side end 306, and the output end of the flow tube 3 is provided with an output inner tube 307. Three flow pipelines 301 are provided on the flow tube side end 306. The buffer device is located between the flow pipelines 301. The buffer device is composed of a buffer elastic sleeve 303 and an external rubber sleeve 304. The buffer elastic sleeve 303 is located on the flow tube side end 306 and is distributed between the flow pipelines 301. The external rubber sleeve 304 is fixedly connected to the buffer elastic sleeve 303. The external rubber sleeve 304 is located at the connection between the flow tube 3 and the first slot 106. The shape of the adjusting baffle 101 is a baffle composed of three circular baffles, wherein the three circular baffles are symmetrical with the center of the circle, and a rubber sealing strip 103 is provided below the three circular baffles.

[0040] When in use, the three circulation pipelines 301 are respectively blocked by the three circular baffles on the adjusting baffle 101. A rubber sealing strip 103 is arranged under the circular baffle to make the seal tighter. Therefore, the hydrogen coming from the hydrogen production pipe 2 impacts the position at the side end 306 of the flow tube, and its pressure is absorbed by the buffer elastic sleeve 303 symmetrically located on the side end 306 of the flow tube, and the pressure is transmitted to the connected external rubber sleeve 304 through its elasticity. Because the external rubber sleeve 304 is on the block on the flow tube 3, the external rubber sleeve 304 will be deformed, making the connection between the block and the first slot 106 tighter.

[0041] refer to Figure 3 and Figure 4 An auxiliary clamping device is also provided between the flow regulating tube 1 and the flow tube 3, and the auxiliary clamping device includes a connecting rod 104, a connecting groove 302, a screw 305 and a spring 309. The connecting groove 302 is located at the center of the side end 306 of the flow tube, one end of the spring 309 is fixedly connected to the bottom of the connecting groove 302, one end of the screw 305 is fixedly connected to the other end of the spring 309, one end of the connecting rod 104 is fixedly connected to the inner center of the adjusting baffle 101, and a threaded seat 105 is provided at the bottom of the other end of the connecting rod 104, and the threaded seat 105 is threadedly connected to the screw 305. Limiting devices are provided on both sides of the screw 305, and the limiting devices include a limiting groove 310 and a clamping block 311. The clamping block 311 is fixedly connected to the screw 305, the limiting groove 310 is provided inside the connecting groove 302, and the clamping block 311 is clamped with the limiting groove 310.

[0042] During use, after turning the adjusting handle 108, the connecting rod 104 fixed on the adjusting baffle 101 is driven to rotate, and the nut seat 105 at the lower end of the connecting rod rotates accordingly, and the screw 305 which is positively threadedly connected to the nut seat 105 will move toward the inside of the nut seat 105 as it rotates, thereby causing the screw 305 to be pulled out of the connecting groove 302, and the spring 309 at the bottom of the screw 305 will be in an extended state due to the movement of the screw 305. The spring 309 generates a pulling force on the screw 305, so that the screw 305 drives the entire adjusting baffle 101 and the flow regulating tube 1 to move slightly in the direction of the flow tube 3, making it tighter with the connecting pipeline 301.

[0043] refer to Figure 1 A flow detection sensor 308 is provided in the output inner tube 307, and an indicator which can display the degree of closure of the circulation pipeline is provided on the adjustment handle 108.

[0044] During use, the flow detection sensor 308 arranged in the output inner tube 307 detects the flow rate of hydrogen flowing inside it, and can monitor whether the flow is leaking in real time, and can detect real-time data when data is needed. The circulation pipeline mark set on the adjustment handle 108 can be used to observe the degree of opening and closing of the flow regulating valve when rotating the flow regulating tube 1. By observing the flow detection sensor 308 and comparing it with the mark, it is possible to control whether the flow regulating valve can be used normally.

[0045] The above embodiment is only one of the preferred implementation modes of the present invention. Any changes or modifications that are made to the main design concept and spirit of the present invention and have no substantial significance, and the technical problems they solve are still consistent with the present invention, should be included in the protection scope of the present invention.

Claims

1. A flow regulating valve for a hydrogen production pipe, characterized in that: The invention comprises a hydrogen production pipe (2) and a regulating valve assembly, wherein the regulating valve assembly comprises a flow regulating pipe (1) and a flow pipe (3), wherein the input end of the flow pipe (3) is connected to the output end of the hydrogen production pipe (2) through the flow regulating pipe (1), the flow pipe (3) is provided with a buffer device for releasing pressure and improving sealing performance and a plurality of flow pipes (301), and one end of the flow regulating pipe (1) is provided with a regulating baffle (101) for closing the flow pipe (301); The flow regulating tube (1) further comprises an annular wall (102), a first slot (106) and a second slot (107); one side of the annular wall (102) is fixedly connected to the regulating baffle (101); the first slot (106) is located on the inner wall of the annular wall (102); the second slot (107) is arranged on the outer wall of the annular wall (102); the flow tube (3) is connected to the inner wall of the annular wall (102) via the first slot (106); the hydrogen production tube (2) is connected to the outer wall of the annular wall (102) via the second slot (107); and an adjusting handle (108) is arranged on the annular wall (102) for easy rotation; The input end of the flow tube (3) is a flow tube side end (306), the output end of the flow tube (3) is provided with an output inner tube (307), three flow pipelines (301) are provided on the flow tube side end (306), and the buffer device is located between the flow pipelines (301); The buffer device is composed of a buffer elastic sleeve (303) and an external rubber sleeve (304); the buffer elastic sleeve (303) is located on the side end (306) of the flow tube and is distributed between the circulation pipelines (301); the external rubber sleeve (304) is fixedly connected to the buffer elastic sleeve (303); and the external rubber sleeve (304) is located at the clamping position between the flow tube (3) and the first clamping groove (106).

2. A hydrogen production pipe flow control valve according to claim 1, characterized in that: An auxiliary clamping device is also provided between the flow regulating tube (1) and the flow tube (3), the auxiliary clamping device comprising a connecting rod (104), a connecting groove (302), a screw rod (305) and a spring (309), the connecting groove (302) being located at the center of a circle of a side end (306) of the flow tube, one end of the spring (309) being fixedly connected to the bottom of the connecting groove (302), one end of the screw rod (305) being fixedly connected to the other end of the spring (309), one end of the connecting rod (104) being fixedly connected to the center of a circle inside the regulating baffle (101), a threaded seat (105) being provided at the bottom of the other end of the connecting rod (104), and the threaded seat (105) being threadedly connected to the screw rod (305).

3. A hydrogen production pipe flow control valve according to claim 2, characterized in that: Limiting devices are arranged on both sides of the screw rod (305), and the limiting devices include a limiting groove (310) and a clamping block (311). The clamping block (311) is fixedly connected to the screw rod (305), the limiting groove (310) is arranged inside the connecting groove (302), and the clamping block (311) is clamped with the limiting groove (310).

4. A hydrogen production pipe flow control valve according to claim 1, characterized in that: The adjustment baffle (101) is in the shape of a baffle composed of three circular baffles, wherein the three circular baffles are symmetrical about the center of the circle, and a rubber sealing strip (103) is arranged below the three circular baffles.

5. A hydrogen production pipe flow control valve according to claim 1, characterized in that: A flow detection sensor (308) is arranged in the output inner tube (307), and a sealing ring (4) is arranged at the connection seal between the hydrogen production tube (2) and the flow regulating tube (1).

6. A hydrogen production pipe flow control valve according to claim 5, characterized in that: The adjustment handle (108) is provided with a mark for displaying the degree of closure of the circulation pipeline.

7. The flow rate regulating method of the hydrogen production pipe flow rate regulating valve according to claim 6, characterized in that: The following steps are involved: S1, rotating the adjustment handle (108) on the annular wall (102) to rotate the annular wall (102); S2, when the mark on the adjustment handle (108) reaches the required flow rate, stop rotating the adjustment handle (108); S3. When the indicator shows that all are closed, observe whether the flow detection sensor (308) is leaking.

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