Hydrogen sampling device

Abstract

The present disclosure relates to a hydrogen sampling device, including a control component and a sampling component, the control component including a pressure reducing valve, a control main valve and a first pipeline, the pressure reducing valve and the control main valve are both arranged on the first pipeline, the input end of the first pipeline is used to be connected to the hydrogen output end of the long tube trailer, the pressure reducing valve is used to regulate the pressure value of the hydrogen flowing through the first pipeline, the control main valve is used to control the opening or closing of the first pipeline, the sampling component includes a second pipeline and a sampling valve, the second pipeline is connected to the output end of the first pipeline, the sampling valve is arranged on the second pipeline, and is used to control the opening or closing of the second pipeline, and the second pipeline is used to transport hydrogen to the sampling container. The technical solution provided by the present disclosure can better control the pressure value in the sampling container and improve the safety of the sampling process.

Description

Technical Field

[0001] The present disclosure relates to the field of hydrogen sampling equipment, and in particular, to a hydrogen sampling device. Background Art

[0002] Hydrogen needs to go through the transportation link from hydrogen production to application. The current common transportation method is to transport it by hydrogen long-tube trailer. The hydrogen is pressurized and compressed into the long-tube trailer. When entering and leaving the factory, the hydrogen needs to be tested and determined whether it is qualified. Because the purity of the transported hydrogen is relatively high, in order to ensure the stability of the sampling results, a large amount of hydrogen is usually required to replace the sampler and the cylinder.

[0003] In the existing sampling method, the sampling tube of the sampling detector is usually connected to the filling valve of the long tube trailer, and a pressure control valve is arranged on the sampler. When sampling, the filling valve and the pressure control valve of the long tube trailer need to be frequently opened and closed, which can easily cause the pressure control valve and the filling valve to loosen and be damaged. When the pressure in the cylinder reaches a predetermined value, the filling valve needs to be closed quickly, which makes the operation process inconvenient and the safety of the sampling process is low. Utility Model Content

[0004] The purpose of the present disclosure is to provide a hydrogen sampling device, which can better control the hydrogen pressure value in the pipeline to at least partially solve the above technical problems.

[0005] In order to achieve the above object, the present disclosure provides a hydrogen sampling device, comprising:

[0006] A control component, the control component comprising a pressure reducing valve, a control main valve and a first pipeline, the pressure reducing valve and the control main valve are both arranged on the first pipeline, the input end of the first pipeline is used to be connected to the hydrogen output end of the tube trailer, the pressure reducing valve is used to regulate the pressure value of the hydrogen flowing through the first pipeline, and the control main valve is used to control the opening or closing of the first pipeline; and

[0007] The sampling assembly comprises a second pipeline and a sampling valve, wherein the second pipeline is connected to the output end of the first pipeline, the sampling valve is arranged on the second pipeline and is used to control the opening or closing of the second pipeline, and the second pipeline is used to transport hydrogen to the sampling container.

[0008] Optionally, the second pipeline is connected to the sampling container through a first hose.

[0009] Optionally, a first self-locking quick connector is provided at the connection between the second pipeline and the first hose.

[0010] Optionally, the first hose is configured as a corrugated metal hose.

[0011] Optionally, the sampling assembly further includes a pressure detection component, and the pressure detection component is disposed on the second pipeline.

[0012] Optionally, the hydrogen sampling device also includes a sampling component, which includes a third pipeline and a sampling valve, the third pipeline is connected to the output end of the first pipeline, the sampling valve is arranged on the third pipeline, and is used to control the opening or closing of the third pipeline, and the end of the third pipeline away from the control main valve is connected to a second hose, and the second hose is used to discharge gas.

[0013] Optionally, a flame arrester is provided at the exhaust port of the second hose.

[0014] Optionally, the layout assembly also includes an L-shaped pipe connector and a second self-locking quick connector, the air inlet of the second hose is connected to one end of the pipe connector, and the other end of the pipe connector is connected to the third pipeline through the second self-locking quick connector, so that the pipe connector can rotate relative to the third pipeline.

[0015] Optionally, the hydrogen sampling device further comprises a base plate, the base plate is used to carry the control component, the sampling component and the placement component, and a plurality of fixing parts for fixing the second pipeline and the third pipeline are arranged on the base plate.

[0016] Optionally, the second hose is configured as a corrugated metal hose.

[0017] Through the above technical solution, a control main valve is arranged on the first pipeline, and the control main valve is used to control the opening and closing of the first pipeline. The control main valve is arranged to reduce the frequency of opening and closing of the pressure reducing valve and the filling valve at the gas output end of the long tube trailer, and the control of the hydrogen delivery process by the control main valve, the pressure reducing valve and the sampling valve arranged on the second pipeline can more accurately control the pressure value in the sampling container and improve the safety of the sampling process. Therefore, the sampling device provided by the present disclosure can improve the safety and convenience of the sampling process.

[0018] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the hydrogen sampling device provided in the exemplary embodiment of the present disclosure.

[0021] Description of Reference Numerals

[0022] 101. Pressure reducing valve; 102. Main control valve; 110. Control assembly; 120. First pipeline; 130. Special flexible joint; 2. Staking assembly; 201. Third pipeline; 202. Staking valve; 210. Second hose; 220. Flame arrester; 230. Second self-locking quick connector; 240. Pipeline connector; 3. Sampling assembly; 301. Second pipeline; 302. Pressure detection component; 303. Sampling valve; 310. First hose; 320. First self-locking quick connector; 4. Fixing piece; 5. Bottom plate. DETAILED DESCRIPTION

[0023] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0024] In the present disclosure, unless otherwise specified, the terms "first" and "second" used in the present disclosure are for the purpose of distinguishing one element from another and have no order or importance. In addition, when the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0025] according to Figure 1 As shown, the present disclosure provides a hydrogen sampling device for sampling hydrogen transported by a long tube trailer. Specifically, the hydrogen sampling device includes a control component 110 and a sampling component 3, the control component 110 includes a pressure reducing valve 101, a control main valve 102 and a first pipeline 120, the pressure reducing valve 101 is used to regulate the pressure value of hydrogen flowing through the first pipeline 120, and the control main valve 102 is used to control the opening or closing of the first pipeline 120; the sampling component 3 includes a second pipeline 301 and a sampling valve 303, the second pipeline 301 is connected to the output end of the first pipeline 120, the sampling valve 303 is arranged on the second pipeline 301, and is used to control the opening or closing of the second pipeline 301, and the second pipeline 301 is used to transport hydrogen to the sampling container.

[0026] Through the above technical solution, the hydrogen sampling device disclosed in the present invention is provided with a control main valve 102 on the first pipeline 120 to control the opening and closing of the first pipeline 120, so as to reduce the frequency of opening and closing of the pressure reducing valve 101 and the filling valve at the gas output end of the long tube trailer, and by controlling the hydrogen delivery process through the control main valve 102, the pressure reducing valve 101 and the sampling valve 303 provided on the second pipeline 301, the pressure value in the sampling container can be controlled more accurately, thereby improving the safety of the sampling process.

[0027] To facilitate disassembly and installation, for example, in some embodiments, reference Figure 1As shown, the first pipeline 120 may be connected to the hydrogen output end of the tube trailer by means of a dedicated flexible joint 130 .

[0028] The limitation of the connection method between the first pipeline 120 and the long tube trailer in the present disclosure is only for the present disclosure. The connection method between the first pipeline 120 and the long tube trailer can be adaptively adjusted according to actual conditions, and the present disclosure does not make any specific limitation.

[0029] The structure of the pressure reducing valve 101 can be adaptively adjusted according to actual conditions. For example, the pressure reducing valve 101 can be constructed as a mechanical pressure reducing valve, an electromagnetic pressure reducing valve, or other adaptive structures. The present disclosure does not make any specific limitations on this, as long as the function of controlling the pressure and reducing the pressure of hydrogen can be achieved.

[0030] In some embodiments, for example, reference Figure 1 As shown, the second pipeline 301 can be connected to the sampling container through the first hose 310. The first hose 310 can be constructed as a metal corrugated hose, such as a high-pressure corrugated metal spring hose, to improve the safety and stability of the hydrogen sampling process. The first hose 310 can be used to facilitate the adjustment of the position of the sampling container relative to the hydrogen sampling device, thereby facilitating the filling process.

[0031] It should be noted that the material of the first hose 310 can be adaptively adjusted according to actual conditions, and the present disclosure does not make any specific limitation on this, as long as its function can be achieved.

[0032] In order to facilitate disassembly and prevent the first hose 310 and the second pipeline 301 from being separated and hydrogen from contacting with air and causing contamination, in some embodiments, for example, reference Figure 1 As shown, a first self-locking quick connector 320 may be provided at the connection between the second pipeline 301 and the first hose 310 .

[0033] In order to facilitate the monitoring of the change in the pressure value of hydrogen, in some embodiments, for example, reference Figure 1 As shown, the sampling assembly 3 may further include a pressure detection component 302, and the pressure detection component 302 may be disposed on the second pipeline 301 to monitor the change of the pressure value in the sampling container in real time.

[0034] The structure of the pressure detection component 302 can be adaptively adjusted according to actual conditions. For example, the pressure detection component 302 can be constructed as a pressure gauge, a pressure sensor, or other adaptive structures. The present disclosure does not make specific limitations on this, as long as its function can be achieved.

[0035] It should be noted that the setting position of the pressure detection component 302 can be adaptively adjusted according to actual conditions. Its purpose is to monitor the pressure value of the hydrogen in the pipe in real time, and to control the main valve 102 or the pressure reducing valve 101 through the pressure value fed back by the pressure detection component to ensure that the pressure value in the pipe reaches the predetermined value.

[0036] In some embodiments, for example, reference Figure 1 As shown, the hydrogen sampling device may also include a sampler assembly 2, which is used to replace the gas in the sampling container to improve the purity of the hydrogen in the sampling container. The sampler assembly 2 includes a third pipeline 201 and a sampler valve 202. The third pipeline 201 is connected to the output end of the first pipeline 120. The sampler valve 202 is arranged on the third pipeline 201 to control the opening or closing of the third pipeline 201. The end of the third pipeline 201 away from the control main valve 102 is connected to the second hose 210. The second hose 210 is used to discharge gas. The second hose 210 can effectively avoid "hydrogen embrittlement" causing pipeline damage and leakage during the hydrogen discharge process. In addition, by arranging the second hose 210, the exhaust direction of the discharge port of the second hose 210 can also be adjusted to improve safety.

[0037] Among them, the structures of the first pipeline 120, the second pipeline 301 and the third pipeline 201 can be adaptively adjusted according to actual conditions. For example, the first pipeline 120, the second pipeline 301 and the third pipeline 201 can be constructed as φ1 / 4 stainless steel seamless pipes, which is not specifically limited in the present disclosure.

[0038] In order to facilitate the connection between the first pipeline 120, the second pipeline 301 and the third pipeline 201, for example, in some embodiments, reference Figure 1 As shown, the first pipeline 120, the second pipeline 301 and the third pipeline 201 can be connected by a three-way connector.

[0039] In order to avoid flashback during gas discharge, in some embodiments, for example, reference Figure 1 As shown, a flame arrester 220 may be provided at the exhaust port of the second hose 210 to improve the safety of the sample placement process.

[0040] In order to facilitate adjustment of the gas discharge direction of the second hose 210, in some embodiments, for example, referring to Figure 1As shown, the lofting assembly 2 may also include an L-shaped pipe joint 240 and a second self-locking quick joint 230, the air inlet of the second hose 210 is connected to one end of the pipe joint 240, and the other end of the pipe joint 240 is connected to the third pipe 201 through the second self-locking quick joint 230, so that the pipe joint 240 can rotate relative to the third pipe 201. Therefore, the rotation angle of the pipe joint 240 can be adjusted by rotating the second self-locking quick joint 230, thereby adjusting the relative angle between the second hose 210 and the third pipe 201, and the direction of the outlet of the second hose 210 can be changed by bending, so that the exhaust direction of the second hose 210 is more flexible. When sampling, the exhaust port of the second hose 210 is arranged higher than the third pipe 201, which is conducive to the discharge of the gas in the pipe and improves safety.

[0041] It should be noted that the length of the second hose 210 may be greater than or equal to the length of the third pipeline 201 , so as to prevent the hydrogen in the working environment from exceeding the standard during the gas replacement process, thereby enhancing the safety of the working environment.

[0042] In some embodiments, in order to enhance the safety and stability of hydrogen discharge, for example, the second hose 210 may be configured as a corrugated metal hose, such as a high-pressure corrugated metal spring hose.

[0043] It should be noted that the structural limitation of the second hose 210 in the present disclosure is only for the present disclosure, and the structure of the second hose 210 can be adaptively adjusted according to actual conditions, for example, the second hose 210 can also be configured as a telescopic hose. The present disclosure does not make any specific limitation on this.

[0044] In order to ensure the stability of the hydrogen sampling process, in some embodiments, for example, reference Figure 1 As shown, the hydrogen sampling device may further include a base plate 5 for carrying the control component 110 , the sampling component 3 and the placing component 2 , and a plurality of fixing parts 4 for fixing the second pipeline 301 and the third pipeline 201 may be provided on the base plate 5 .

[0045] The structure of the bottom plate 5 can be adaptively adjusted according to actual conditions. For example, the bottom plate 5 can be constructed as a stainless steel plate, an iron plate, or other feasible adaptive structures. The present disclosure does not make any specific limitation on this, as long as its function can be achieved.

[0046] The structure of the fixing member 4 can be adaptively adjusted according to actual conditions. For example, in some embodiments, Figure 1As shown, the fixing member 4 can be constructed as two fixing blocks spliced ​​with each other, a clamping groove capable of accommodating the second pipeline 301 or the third pipeline 201 is provided between the two fixing blocks, and the two fixing blocks can be connected by bolts, one of the fixing blocks can be connected to the bottom plate 5, for example, by welding, bonding, etc., or can also be connected to the bottom plate 5 by bolts that penetrate the two fixing blocks, which is not specifically limited in the present disclosure;

[0047] The fixing member 4 can also be constructed as a fixing rod, a fixing plate, or other adaptive structures, which is not specifically limited in the present disclosure, as long as the function can be achieved.

[0048] In addition, the control main valve 102, the sampling valve 303 and the placing valve 202 can all adopt existing manual valves, and the present disclosure does not make any specific limitation on this.

[0049] The present disclosure exemplarily describes the sampling process of the hydrogen sampling device, for example: before sampling, first ensure that the pressure reducing valve 101, the control main valve 102, the sampling valve 303 and the placing valve 202 are in a closed state, connect the input end of the first pipeline 120 to the hydrogen output end of the long tube trailer, and connect the first hose 310 to the sampling container; when sampling, first open the filling valve of the long tube trailer to allow hydrogen to be input, adjust the pressure reducing valve 101, adjust the hydrogen pressure value in the first pipeline 120 to a first preset value, open the valve of the sampling container, and then open the control main valve 102 and the sampling valve 303, so that the hydrogen flows to the second pipeline 301 and is transported to the sampling container via the first hose 310. At this time, observe the pressure detection member 302 arranged on the second pipeline 301, and wait until the pressure value reaches the second preset value. After setting the value, close the control main valve 102 and open the sampling valve 202. After the sampling valve 202 is opened, hydrogen can flow to the third pipeline 201 and be discharged into the air through the second hose 210. In this way, the hydrogen pressure value in the sampling container will decrease. After the pressure value drops to the third preset value, close the sampling valve 202, then refill the sampling container with hydrogen, and then release the gas. Repeat the operation five to six times until the gas in the sampling container is completely replaced. Then open the control main valve 102 and the sampling valve 303, observe that the pressure value on the pressure detection component does not change, close the control main valve 102, the sampling valve 303 and the valve of the sampling container, and ensure that the valves on each pipeline are in a closed state; after sampling, pull out the first self-locking quick connector 320, and send the sampling container to purity testing. It should be noted that in the above sampling process, the steps of first opening the valve of the sampling container and then opening the main control valve and the sampling valve are not fixed. According to actual conditions, the main control valve and the sampling valve can be opened first, and then the valve of the sampling container can be opened.

[0050] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0051] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0052] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A hydrogen sampling device, characterized in that: include: A control component, the control component comprising a pressure reducing valve, a main control valve and a first pipeline, the pressure reducing valve and the main control valve are both arranged on the first pipeline, the input end of the first pipeline is used to be connected to the hydrogen output end of the tube trailer, the pressure reducing valve is used to regulate the pressure value of the hydrogen flowing through the first pipeline, and the main control valve is used to control the opening or closing of the first pipeline; and The sampling assembly comprises a second pipeline and a sampling valve, wherein the second pipeline is connected to the output end of the first pipeline, the sampling valve is arranged on the second pipeline and is used to control the opening or closing of the second pipeline, and the second pipeline is used to transport hydrogen to the sampling container.

2. The hydrogen sampling device according to claim 1, characterized in that: The second pipeline is connected to the sampling container through a first hose.

3. The hydrogen sampling device according to claim 2, characterized in that: A first self-locking quick connector is provided at the connection between the second pipeline and the first hose.

4. The hydrogen sampling device according to claim 2, characterized in that: The first hose is configured as a corrugated metal hose.

5. The hydrogen sampling device according to claim 1, characterized in that: The sampling assembly further comprises a pressure detection component, and the pressure detection component is arranged on the second pipeline.

6. The hydrogen sampling device according to claim 1, characterized in that: The hydrogen sampling device also includes a sampling component, which includes a third pipeline and a sampling valve. The third pipeline is connected to the output end of the first pipeline. The sampling valve is arranged on the third pipeline and is used to control the opening or closing of the third pipeline. The end of the third pipeline away from the control main valve is connected to a second hose, and the second hose is used to discharge gas.

7. The hydrogen sampling device according to claim 6, characterized in that: A flame arrester is arranged at the exhaust port of the second hose.

8. The hydrogen sampling device according to claim 6, characterized in that: The layout assembly also includes an L-shaped pipe connector and a second self-locking quick connector. The air inlet of the second hose is connected to one end of the pipe connector, and the other end of the pipe connector is connected to the third pipe through the second self-locking quick connector, so that the pipe connector can rotate relative to the third pipe.

9. The hydrogen sampling device according to claim 6, characterized in that: The hydrogen sampling device further comprises a bottom plate, which is used to carry the control component, the sampling component and the sample placement component, and a plurality of fixing parts for fixing the second pipeline and the third pipeline are arranged on the bottom plate.

10. The hydrogen sampling device according to claim 6, characterized in that: The second hose is configured as a corrugated metal hose.

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