Universal test platform for hydrogen energy valve and test method thereof

Abstract

The invention discloses a universal test platform for a hydrogen energy valve and a test method thereof. The universal test platform comprises a gas source module, a pressurization module, a storage module, a valve test module, a pneumatic clamp module, a gas recovery module and a control module which are connected through a pipeline, the gas source module is connected with the pressurization module and is used for introducing gas for testing, the outlet end of the pressurization module is connected with the storage module and is used for pressurizing the pressure of the gas for testing to the pressure required by testing and temporarily storing the pressurized gas in the storage module, the outlet end of the storage module is provided with a pressure regulating valve, and the pressure regulating valve is used for regulating the pressure of the gas for testing. The gas recovery module extends to the valve test module through a pipeline, a hydrogen energy valve needing to be tested is installed at the valve test module through the pneumatic clamp module, and the gas recovery module is communicated with the valve test module through a recovery pipeline and used for recovering gas for testing. According to the invention, the pressure of the gas source is increased to be greater than the pressure required by working through the supercharger and is stored in the high-pressure gas cylinder cabinet, the outlet pressure is adjusted to be the pressure required by testing through the pressure regulating valve, and then the pressure reaches the valve testing area and is used for testing the valve.

Description

Technical Field

[0001] The invention relates to the field of valve component testing, and in particular to a universal testing platform for hydrogen energy valve components and a testing method thereof. Background Art

[0002] With the growth of global demand for clean energy and the policy orientation of governments around the world to reduce greenhouse gas emissions, the development of the hydrogen energy industry has received unprecedented attention. As the core components in the transportation, storage, distribution and application of hydrogen energy, the performance of hydrogen energy valves is directly related to the safety, stability and economy of the hydrogen energy system. Therefore, it is particularly important to conduct strict testing on hydrogen energy valves.

[0003] At present, in order to ensure the safety of hydrogen-related pipe valves of different specifications from different manufacturers and meet the requirements of multiple and repeated use, these products need to be subjected to various types of specialized tests or debugging using professional hydrogen valve testing equipment.

[0004] However, there are still many shortcomings in the existing performance testing technology:

[0005] 1. The existing hydrogen energy pipe and valve testing equipment has many types, single test items, high testing costs, and complex operations, which cannot meet the needs of safety testing under complex working conditions.

[0006] 2. Most of the existing hydrogen energy pipe and valve testing equipment adopts specific tooling or testing devices for specific products, which can only meet the testing of single brand or specification products and single hydrogenation products. Its application scope is narrow and the systematization is poor. Different test items require multiple test devices (or multiple tooling) to achieve different test experiment requirements. It requires a lot of equipment, occupies a large space, and has complex structure, layout, operation, and difficult maintenance and management.

[0007] In order to solve the above-mentioned technical problems, the patent document with patent number 202110715061.6 discloses a comprehensive test pipeline structure for hydrogen-related high-pressure pipe and valve parts, its system and testing method, wherein the pipeline structure includes a main pipeline, a valve test pipeline and a purge pipeline. The main pipeline includes a hydrogen inlet, a filter, a pressure regulating valve, a first pneumatic valve, a first pressure gauge, a first pressure transmitter, a second pneumatic valve, and a vent B. The valve test pipeline includes a front stop valve, a second pressure gauge, a second pressure transmitter, a test connection outlet C, a test connection inlet D, and a rear stop valve. The purge pipeline includes a purge inlet, a third pneumatic valve, and a one-way valve.

[0008] The above technical solution can be used to conduct comprehensive simulation tests on the safety, reliability and durability of various pipe valves (such as filters, pneumatic ball valves, safety valves, one-way valves, etc.) of different specifications and brands under variable and complex working conditions. It can be used for quality inspection, national qualification certification, and regular calibration testing of hydrogen products during production and use. It has a wide range of applications and low cost.

[0009] However, the above technical solution still has the following problems

[0010] It is unable to cope with the special requirements in the process of developing new products, and more high-value gases will be needed in the testing process. In the current testing process, they will be directly discharged, resulting in a lot of waste.

[0011] Therefore, it is necessary to improve the above prior art to overcome the above defects. Summary of the invention

[0012] The object of the present invention is to provide a universal testing platform and a testing method for hydrogen energy valve components, so as to solve the problems existing in the prior art.

[0013] The above technical objectives of the present invention are achieved through the following technical solutions:

[0014] A universal test platform for hydrogen energy valves, comprising a gas source module, a boosting module, a storage module, a valve test module, a pneumatic fixture module, a gas recovery module and a control module connected by pipelines; the gas source module is connected to the boosting module and is used to introduce test gas, the outlet end of the boosting module is connected to the storage module and is used to boost the test gas pressure to the pressure required for the test and temporarily store the boosted gas in the storage module, the outlet end of the storage module is provided with a pressure regulating valve, which extends to the valve test module through a pipeline, the hydrogen energy valve to be tested is installed at the valve test module through the pneumatic fixture module, the gas recovery module is connected to the valve test module through a recovery pipeline, and is used to recover the test gas.

[0015] Furthermore, the air source module is connected to the inlet end of the boosting module through a first pipeline, a first pneumatic ball valve is provided on the first pipeline, a second pipeline for connecting the valve test module and a third pipeline for connecting the storage module are provided at the outlet end of the boosting module, a seventh pneumatic ball valve and an eighth pneumatic ball valve are provided on the second pipeline, a second pneumatic ball valve is provided on the third pipeline, the outlet end of the storage module is connected to the valve test module through a fourth pipeline, a second pneumatic ball valve and a second pneumatic ball valve are provided on the fourth pipeline, a fifth pipeline is provided at the outlet end of the valve test module to connect to the gas recovery module, a fifth pneumatic ball valve is provided on the fifth pipeline, the outlet end of the gas recovery module is connected to the first pipeline through a sixth pipeline, a sixth pneumatic ball valve is provided on the sixth pipeline, the outlet end of the valve test module is also connected to the exhaust pipeline through a seventh pipeline, a ninth pneumatic ball valve is provided on the seventh pipeline.

[0016] Furthermore, it also includes a nitrogen testing module, which includes a nitrogen pipeline, one end of which is provided with an inlet end for connecting to a nitrogen source, a low-pressure gas storage cylinder is installed on the nitrogen pipeline, and a tenth pneumatic ball valve and an eleventh pneumatic ball valve are respectively provided on the front and rear pipelines of the low-pressure gas storage cylinder, and the other end of the nitrogen pipeline is connected to the valve test module.

[0017] Further, the valve component testing module includes a cavity structure consisting of an upper cavity and a lower cavity;

[0018] A test station for placing the hydrogen energy valve component to be tested is provided at the bottom of the lower cavity, and an integrated wiring harness for electrical performance testing is provided at the bottom of the test station;

[0019] The upper cavity is arranged at the opening of the lower cavity, the piston rod of the first cylinder is connected to the upper cavity, and the closed and open states of the upper cavity and the lower cavity can be switched by pushing the movement of the upper cavity;

[0020] The pneumatic clamp module is arranged in the upper cavity, and the pneumatic clamp module includes a second cylinder fixedly mounted on the inner surface of the upper cavity, and the piston rod of the second cylinder is connected to a pressure block, which is used to press the hydrogen energy valve member placed in the test station.

[0021] A general testing method for hydrogen energy valve components comprises the following steps:

[0022] 1) Routine testing of hydrogen valves

[0023] 1.1) Install the hydrogen energy valve to be tested on the test station and fix it with the pneumatic fixture module, then open the first pneumatic ball valve and the second pneumatic ball valve. The test gas input from the gas source module enters the high-pressure gas storage tank through the booster and increases the pressure of the test gas to a pressure exceeding the test requirement of the hydrogen energy valve.

[0024] 1.2) Open the third pneumatic ball valve to adjust the outlet pressure of the high-pressure gas storage tank to the test requirement pressure of the hydrogen energy valve component; and open the fourth pneumatic ball valve to input the test gas into the valve component test module to complete the test;

[0025] 1.3) After the test is completed, close the first pneumatic ball valve, the second pneumatic ball valve, the third pneumatic ball valve and the fourth pneumatic ball valve; open the fifth pneumatic ball valve, and pump the tested gas into the recovery gas storage tank through the air pressure pump;

[0026] 1.4) When testing again, open the sixth pneumatic ball valve and the second pneumatic ball valve, and the test gas in the recovered gas storage tank will enter the high-pressure gas storage tank through the booster to achieve circulation.

[0027] Furthermore, it also includes trial production of valve parts testing, the specific steps are as follows:

[0028] 2.1) Install the hydrogen energy valve to be tested on the test station, fix it with the pneumatic fixture module, open the first pneumatic ball valve and the second pneumatic ball valve, and input the test gas from the gas source module to the valve test module through the booster for testing;

[0029] 2.2) After the test is completed, open the fifth pneumatic ball valve and pump the tested gas into the recovery gas storage tank through the air pressure pump; or open the ninth pneumatic ball valve to release the gas directly.

[0030] Furthermore, a low-pressure nitrogen flow test is also included, and the specific steps are as follows:

[0031] 3.1) Install the hydrogen energy valve to be tested at the test station, fix it with the pneumatic fixture module, open the tenth pneumatic ball valve, and store the nitrogen input from the nitrogen source into the low-pressure gas storage cylinder;

[0032] 3.2) Open the eleventh pneumatic ball valve at the rear end of the low-pressure gas storage cylinder and input nitrogen into the valve test module for testing; during the test, open the ninth pneumatic ball valve to read the outlet pressure and flow of the valve test module.

[0033] Furthermore, it also includes electrical performance testing, and the specific steps are as follows:

[0034] 4.1) Install the hydrogen energy valve component to be tested at the test station and connect the hydrogen energy valve component to the terminal of the integrated wiring harness;

[0035] 4.2) Test the opening / closing voltage of hydrogen energy valve components through program end PLC / host computer control, test the on / off response status of hydrogen energy valve components through PLC timing opening and closing, and read the resistance value test and temperature sensor performance of hydrogen energy valve components through equipment.

[0036] In summary, the present invention has the following beneficial effects:

[0037] 1. It is compatible with a variety of hydrogen energy valves and some newly developed hydrogen energy valve universal test platforms. It adopts modular installation and integrated functional design. It can perform multi-product tests by adjusting the installation tooling and adjusting the program. It can also recycle the medium used in the test to reduce the loss during the test. It can also manually choose to directly pressurize and directly test the valve to deal with temporary emergency valve tests.

[0038] 2. The cavity is divided into upper and lower cavities. The upper cavity is opened and closed by a cylinder to provide protection during the test and perform vacuum testing on the valve as a whole. A cylinder can also be added to the cavity to directly press the valve and control the clamping force of the valve through the cylinder pressure to replace the thread torque, thus avoiding the problem of the valve being damaged by torque and affecting the product appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural block diagram of the universal test platform for hydrogen energy valve components described in the present invention.

[0040] Figure 2 It is a schematic diagram of the pipeline of the universal test platform for hydrogen energy valves described in the present invention.

[0041] Figure 3 It is a test schematic diagram of the bottle valve and the tail valve of the present invention.

[0042] Figure 4 It is a test schematic diagram of the pressure reducing valve, back pressure valve and pressure regulating valve described in the present invention.

[0043] Figure 5 It is a schematic diagram of the pipeline of the bottle valve and the tail valve described in the present invention.

[0044] Figure 6 It is a schematic diagram of the pipelines of the pressure reducing valve, the back pressure valve and the pressure regulating valve described in the present invention. DETAILED DESCRIPTION

[0045] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with illustrations and specific embodiments.

[0046] like Figures 1 to 6As shown, the present invention proposes a universal test platform for hydrogen energy valves, comprising a gas source module, a boosting module, a storage module, a valve test module, a pneumatic clamp module, a gas recovery module and a control module connected by pipelines; the gas source module is connected to the boosting module, which is used to introduce test gas, the outlet end of the boosting module is connected to the storage module, which is used to boost the test gas pressure to the pressure required for the test, and temporarily store the boosted gas in the storage module, the outlet end of the storage module is provided with a pressure regulating valve, which extends to the valve test module through a pipeline, the hydrogen energy valve to be tested is installed at the valve test module through the pneumatic clamp module, the gas recovery module is connected to the valve test module through a recovery pipeline, and is used to recover the test gas.

[0047] The gas source module is connected to the inlet end of the boosting module through a first pipeline, a first pneumatic ball valve (1) is arranged on the first pipeline, a second pipeline for connecting the valve test module and a third pipeline for connecting the storage module are arranged on the outlet end of the boosting module, a seventh pneumatic ball valve (7) and an eighth pneumatic ball valve (8) are arranged on the second pipeline, a second pneumatic ball valve (2) is arranged on the third pipeline, the outlet end of the storage module is connected to the valve test module through a fourth pipeline, a second pneumatic ball valve (3) and a second pneumatic ball valve (4) are arranged on the fourth pipeline, a fifth pipeline is arranged at the outlet end of the valve test module to connect to the gas recovery module, a fifth pneumatic ball valve (5) is arranged on the fifth pipeline, the outlet end of the gas recovery module is connected to the first pipeline through a sixth pipeline, a sixth pneumatic ball valve (6) is arranged on the sixth pipeline, the outlet end of the valve test module is also connected to the exhaust pipeline through a seventh pipeline, a ninth pneumatic ball valve (9) is arranged on the seventh pipeline.

[0048] It also includes a nitrogen test module, which includes a nitrogen pipeline, one end of which is provided with an inlet end for connecting to a nitrogen source, a low-pressure gas storage bottle is installed on the nitrogen pipeline, and a tenth pneumatic ball valve (10) and an eleventh pneumatic ball valve (11) are respectively provided on the front and rear pipelines of the low-pressure gas storage bottle, and the other end of the nitrogen pipeline is connected to the valve test module.

[0049] The valve component testing module comprises a cavity structure consisting of an upper cavity (12) and a lower cavity (13);

[0050] A test station (14) for placing a hydrogen energy valve component to be tested is provided at the bottom of the lower cavity (13), and an integrated wiring harness (15) for electrical performance testing is provided at the bottom of the test station (14);

[0051] The upper cavity (12) is arranged at the opening of the lower cavity (13); the piston rod of the first cylinder (16) is connected to the upper cavity (12); and the closed and open states of the upper cavity (12) and the lower cavity (13) can be switched by pushing the upper cavity (12) to move;

[0052] The pneumatic clamp module is arranged in the upper cavity (12), and the pneumatic clamp module comprises a second cylinder (17) fixedly mounted on the inner surface of the upper cavity (12), and the piston rod of the second cylinder (17) is connected to a pressure block (18), and the pressure block (18) is used to press the hydrogen energy valve component placed in the test station.

[0053] A general testing method for hydrogen energy valve components comprises the following steps:

[0054] 1) Routine testing of hydrogen valves

[0055] 1.1) The hydrogen energy valve component to be tested is installed at the test station (14) and fixed by the pneumatic clamp module, and then the first pneumatic ball valve (1) and the second pneumatic ball valve (2) are opened. The test gas input by the gas source module enters the high-pressure gas storage tank through the booster, and the pressure of the test gas is increased to a pressure exceeding the test requirement of the hydrogen energy valve component;

[0056] 1.2) Open the third pneumatic ball valve (3) to adjust the outlet pressure of the high-pressure gas storage tank to the test pressure required for the hydrogen energy valve component; and open the fourth pneumatic ball valve (4) to input the test gas into the valve component test module to complete the test;

[0057] 1.3) After the test is completed, close the first pneumatic ball valve (1), the second pneumatic ball valve (2), the third pneumatic ball valve (3) and the fourth pneumatic ball valve (4); open the fifth pneumatic ball valve (5), and pump the tested gas into the recovery gas storage tank through the air pressure pump;

[0058] 1.4) When testing again, open the sixth pneumatic ball valve (6) and the second pneumatic ball valve (2), and the test gas in the recovery gas storage tank will enter the high-pressure gas storage tank through the booster to achieve circulation.

[0059] The present invention also includes trial production of valve components and testing, the specific steps of which are as follows:

[0060] 2.1) Install the hydrogen energy valve component to be tested at the test station (14), fix it with the pneumatic clamp module, open the first pneumatic ball valve (1) and the second pneumatic ball valve (2), and input the test gas from the gas source module to the valve component test module through the booster for testing;

[0061] 2.2) After the test is completed, open the fifth pneumatic ball valve (5) and pump the tested gas into the recovery gas storage tank through the air pressure pump; or open the ninth pneumatic ball valve (9) to directly discharge the gas.

[0062] The present invention also includes a low-pressure nitrogen flow test, and the specific steps are as follows:

[0063] 3.1) Install the hydrogen energy valve component to be tested at the test station (14), fix it with the pneumatic clamp module, open the tenth pneumatic ball valve (10), and store the nitrogen input from the nitrogen source into the low-pressure gas storage cylinder;

[0064] 3.2) Open the eleventh pneumatic ball valve (11) at the rear end of the low-pressure gas storage cylinder to input nitrogen into the valve test module for testing; during the test, open the ninth pneumatic ball valve (9) to read the outlet pressure and flow of the valve test module.

[0065] The present invention also includes an electrical performance test, and the specific steps are as follows:

[0066] 4.1) Install the hydrogen energy valve component to be tested at the test station (14), and connect the hydrogen energy valve component to the terminal of the integrated wiring harness (15);

[0067] 4.2) Test the opening / closing voltage of hydrogen energy valve components through program end PLC / host computer control, test the on / off response status of hydrogen energy valve components through PLC timing opening and closing, and read the resistance value test and temperature sensor performance of hydrogen energy valve components through equipment.

[0068] In this document, the directions or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", and "horizontal" are based on the directions or positional relationships shown in the accompanying drawings and are only for the clarity of expressing the technical solutions and the convenience of description, and therefore should not be understood as limitations of the present invention.

[0069] In this document, the terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than those listed and may also include additional elements not expressly listed.

[0070] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A universal test platform for hydrogen energy valves, characterized in that: It includes an air source module, a boosting module, a storage module, a valve test module, a pneumatic clamp module, a gas recovery module and a control module connected by pipelines; the air source module is connected to the boosting module, which is used to introduce test gas, the outlet end of the boosting module is connected to the storage module, which is used to boost the test gas pressure to the pressure required for the test and temporarily store the boosted gas in the storage module, the outlet end of the storage module is provided with a pressure regulating valve, which extends to the valve test module through a pipeline, the hydrogen valve to be tested is installed at the valve test module through the pneumatic clamp module, and the gas recovery module is connected to the valve test module through a recovery pipeline, and is used to recover the test gas.

2. The universal test platform for hydrogen energy valves according to claim 1, characterized in that: The gas source module is connected to the inlet end of the boosting module through a first pipeline, a first pneumatic ball valve (1) is arranged on the first pipeline, a second pipeline for connecting the valve test module and a third pipeline for connecting the storage module are arranged on the outlet end of the boosting module, a seventh pneumatic ball valve (7) and an eighth pneumatic ball valve (8) are arranged on the second pipeline, a second pneumatic ball valve (2) is arranged on the third pipeline, the outlet end of the storage module is connected to the valve test module through a fourth pipeline, a second pneumatic ball valve (3) and a second pneumatic ball valve (4) are arranged on the fourth pipeline, a fifth pipeline is arranged at the outlet end of the valve test module to connect to the gas recovery module, a fifth pneumatic ball valve (5) is arranged on the fifth pipeline, the outlet end of the gas recovery module is connected to the first pipeline through a sixth pipeline, a sixth pneumatic ball valve (6) is arranged on the sixth pipeline, the outlet end of the valve test module is also connected to the exhaust pipeline through a seventh pipeline, a ninth pneumatic ball valve (9) is arranged on the seventh pipeline.

3. The universal test platform for hydrogen energy valve components according to claim 2, characterized in that: It also includes a nitrogen test module, which includes a nitrogen pipeline, one end of which is provided with an inlet end for connecting to a nitrogen source, a low-pressure gas storage bottle is installed on the nitrogen pipeline, and a tenth pneumatic ball valve (10) and an eleventh pneumatic ball valve (11) are respectively provided on the front and rear pipelines of the low-pressure gas storage bottle, and the other end of the nitrogen pipeline is connected to the valve test module.

4. The universal test platform for hydrogen energy valve components according to claim 3, characterized in that: The valve component testing module comprises a cavity structure consisting of an upper cavity (12) and a lower cavity (13); A test station (14) for placing a hydrogen energy valve component to be tested is provided at the bottom of the lower cavity (13), and an integrated wiring harness (15) for electrical performance testing is provided at the bottom of the test station (14); The upper cavity (12) is arranged at the opening of the lower cavity (13); the piston rod of the first cylinder (16) is connected to the upper cavity (12); and the closed and open states of the upper cavity (12) and the lower cavity (13) can be switched by pushing the upper cavity (12) to move; The pneumatic clamp module is arranged in the upper cavity (12), and the pneumatic clamp module comprises a second cylinder (17) fixedly mounted on the inner surface of the upper cavity (12), and the piston rod of the second cylinder (17) is connected to a pressure block (18), and the pressure block (18) is used to press the hydrogen energy valve component placed in the test station.

5. A universal testing method for hydrogen energy valve components, comprising the universal testing platform for hydrogen energy valve components as claimed in claim 4, characterized in that: The steps include: 1) Routine testing of hydrogen valves 1.1) The hydrogen energy valve component to be tested is installed at the test station (14) and fixed by the pneumatic clamp module, and then the first pneumatic ball valve (1) and the second pneumatic ball valve (2) are opened. The test gas input by the gas source module enters the high-pressure gas storage tank through the booster, and the pressure of the test gas is increased to a pressure exceeding the test requirement of the hydrogen energy valve component; 1.2) Open the third pneumatic ball valve (3) to adjust the outlet pressure of the high-pressure gas storage tank to the test pressure required for the hydrogen energy valve component; and open the fourth pneumatic ball valve (4) to input the test gas into the valve component test module to complete the test; 1.3) After the test is completed, close the first pneumatic ball valve (1), the second pneumatic ball valve (2), the third pneumatic ball valve (3) and the fourth pneumatic ball valve (4); open the fifth pneumatic ball valve (5), and pump the tested gas into the recovery gas storage tank through the air pressure pump; 1.4) When testing again, open the sixth pneumatic ball valve (6) and the second pneumatic ball valve (2), and the test gas in the recovery gas storage tank will enter the high-pressure gas storage tank through the booster to achieve circulation.

6. The universal testing method for hydrogen energy valve components according to claim 5, characterized in that: It also includes trial valve testing, the specific steps are as follows: 2.1) Install the hydrogen energy valve component to be tested at the test station (14), fix it with the pneumatic clamp module, open the first pneumatic ball valve (1) and the second pneumatic ball valve (2), and input the test gas from the gas source module to the valve component test module through the booster for testing; 2.2) After the test is completed, open the fifth pneumatic ball valve (5) and pump the tested gas into the recovery gas storage tank through the air pressure pump; or open the ninth pneumatic ball valve (9) to directly discharge the gas.

7. The universal testing method for hydrogen energy valve components according to claim 5, characterized in that: It also includes a low-pressure nitrogen flow test, the specific steps are as follows: 3.1) Install the hydrogen energy valve component to be tested at the test station (14), fix it with the pneumatic clamp module, open the tenth pneumatic ball valve (10), and store the nitrogen input from the nitrogen source into the low-pressure gas storage cylinder; 3.2) Open the eleventh pneumatic ball valve (11) at the rear end of the low-pressure gas storage cylinder and input nitrogen into the valve component test module for testing; During the test, the ninth pneumatic ball valve (9) is opened to read the outlet pressure and flow of the valve test module.

8. The universal testing method for hydrogen energy valve components according to claim 5, characterized in that: It also includes electrical performance testing, the specific steps are as follows: 4.1) Install the hydrogen energy valve component to be tested at the test station (14), and connect the hydrogen energy valve component to the terminal of the integrated wiring harness (15); 4.2) Test the opening / closing voltage of hydrogen energy valve components through program end PLC / host computer control, test the on / off response status of hydrogen energy valve components through PLC timing opening and closing, and read the resistance value test and temperature sensor performance of hydrogen energy valve components through equipment.

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