Gas cylinder fatigue test tool under simulated sunlight irradiation

Abstract

The utility model provides a gas cylinder fatigue test tool simulating sunlight irradiation, and relates to the technical field of hydrogen storage cylinder fatigue tests, the gas cylinder fatigue test tool comprises a box body and a water source, a test cylinder body is arranged in the box body, and ultraviolet lamps are arranged around the periphery of the test cylinder body in the box body; the water source is communicated with the test bottle body through a pressure pump and a main pipeline, and a pressure sensor is arranged in the test bottle body. According to the utility model, the test bottle body is arranged in the box body, and the ultraviolet lamp is arranged in the box body to simulate sunlight irradiation, so that a sunlight irradiation simulation scene surrounding the test bottle body is formed, and the damage influence of a sunshine irradiation working condition on the test bottle body in an ultimate pressure cycle test is made up; and a guarantee is provided for safe use of the large-volume hydrogen storage cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of fatigue testing of hydrogen storage cylinders, in particular to a tooling for fatigue testing of cylinders under simulated sunlight. Background Art

[0002] Hydrogen storage and transportation equipment, such as hydrogen cylinders and tube trailers, is increasingly being used in everyday applications. Hydrogen cylinders require pressure cycling tests to verify their service life. In practical applications, cylinders are often used outdoors, where prolonged exposure to sunlight can lead to fiber detachment, cylinder leakage, and rupture.

[0003] However, existing technologies, such as the Chinese patent CN107870132A published on April 3, 2018, and some other similar patented technologies for extreme pressure cycle testing of hydrogen storage cylinders, do not take into account the damage to the cylinders under sunlight exposure conditions. Utility Model Content

[0004] The purpose of this utility model is to provide a fatigue test fixture for gas cylinders under simulated sunlight, which can compensate for the damage caused by sunlight exposure to gas cylinders during the ultimate pressure cycle test.

[0005] The utility model provides a gas cylinder fatigue test tool under simulated sunlight irradiation, comprising a box body and a water source, wherein a test bottle body is arranged in the box body, and an ultraviolet lamp is arranged around the test bottle body in the box body; the water source and the test bottle body are connected through a pressure pump and a main pipeline, and a pressure sensor is arranged in the test bottle body.

[0006] Furthermore, a temperature sensor is provided on the outer wall of the test bottle.

[0007] Furthermore, the plurality of ultraviolet lamps irradiate toward the test bottle.

[0008] Furthermore, the box is a metal explosion-proof box.

[0009] Furthermore, a pressure gauge is provided on the main pipeline downstream of the booster pump.

[0010] Furthermore, a valve is provided on the main pipeline upstream of the booster pump.

[0011] Furthermore, an exhaust valve is provided on the main pipeline.

[0012] Furthermore, an overflow valve is provided on the main pipeline.

[0013] Furthermore, the water source is connected to the main pipeline via a branch pipeline, and the connection between the branch pipeline and the main pipeline is located downstream of the booster pump.

[0014] Furthermore, a valve is provided on the branch pipeline.

[0015] The technical solution of the present invention is to arrange the test bottle body in a box body, and to arrange an ultraviolet lamp in the box body to simulate sunlight exposure, thereby forming a sunlight exposure simulation scene around the test bottle body, compensating for the damage caused by sunlight exposure conditions to the test bottle body during the extreme pressure cycle test, and adding protection for the safe use of large-volume hydrogen storage cylinders. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the ultraviolet lamp and the test bottle inside the box of the utility model;

[0019] Description of reference numerals:

[0020] 1-Box; 2-Water source; 3-Test bottle; 4-Ultraviolet lamp; 5-Pressure pump; 6-Main pipeline; 7-Pressure sensor; 8-Temperature sensor; 9-Pressure gauge; 10-Standard gauge; 11-Valve; 12-Exhaust valve, 13-Overflow valve; 14-Branch pipeline. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. 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.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0024] Example 1

[0025] like Figure 1 and Figure 2 As shown, the utility model provides a gas cylinder fatigue test tool under simulated sunlight, including a box body 1 and a water source 2. The test bottle body 3 is arranged in the box body 1, and an ultraviolet lamp 4 is provided around the test bottle body 3 in the box body 1; the water source 2 and the test bottle body 3 are connected through a pressure pump 5 and a main pipeline 6, and a pressure sensor 7 is provided in the test bottle body 3.

[0026] Specifically, the test cylinder 3 is a fully wrapped aluminum alloy liner gas cylinder, secured within the housing 1 by means of brackets and bolts. Multiple UV lamps 4 are positioned on the inner sidewall of the housing 1, evenly distributed around the exterior of the test cylinder, creating a surrounding UV illumination environment. This UV illumination simulates the use of large-volume wrapped gas cylinders exposed to sunlight, thus addressing potential damage to the cylinders under these conditions.

[0027] A fixed pressure sensor 7 extends into the mouth of the test bottle 3. During operation, water flows from a water source 2 (e.g., a water tank) through a pressure pump 5 (e.g., a hydraulic pump) to pressurize the bottle. After reaching the rated pressure, the pressure is maintained. Pressure changes within the bottle are detected by the pressure sensor 7. Simultaneously, an ultraviolet lamp 4 is turned on to simulate sunlight exposure. A fatigue test of the hydrogen storage cylinder is then conducted using the ultimate pressure cycle test method.

[0028] Example 2

[0029] A temperature sensor 8 is provided on the outer wall of the test bottle 3. While the pressure sensor 7 is recording the pressure change of the bottle, the temperature sensor 8 is also used to detect the temperature change of the test bottle 3.

[0030] Example 3

[0031] Multiple ultraviolet lamps 4 are directed toward the test bottle 3 to irradiate the test bottle 3. This allows the test bottle 3 to be fully irradiated by the ultraviolet lamps 4, which is closer to the actual usage scenario.

[0032] Example 4

[0033] The box 1 is a metal explosion-proof box. The metal explosion-proof box is enclosed on all sides. In addition to providing an environment for the ultraviolet lamp 4 to irradiate, it also has an explosion-proof protection effect to avoid possible damage caused by the high-pressure explosion of the test bottle 3.

[0034] Example 5

[0035] A pressure gauge 9 and a standard gauge 10 are provided on the main pipeline 6 downstream of the booster pump 5. The pipeline boosting pressure is monitored by the pressure gauge 9, and the standard gauge 10 is used to compare with the pressure gauge 9 to determine whether the pressure detection value is correct and effective.

[0036] A valve 11 is provided on the main pipeline 6 upstream of the booster pump 5 , and the booster pump 5 is controlled to be on or off by the valve 11 for replacement or maintenance.

[0037] An exhaust valve 12 is provided on the main pipeline 6, through which air etc. discharged from the test bottle body 3 due to the injection of pressurized liquid is discharged.

[0038] The main pipeline 6 is provided with an overflow valve 13, which controls the passage of the test bottle 3 to be open or closed, or maintains a pressure-maintaining state.

[0039] The water source 2 is connected to the main pipeline 6 through a branch pipeline 14. The connection between the branch pipeline 14 and the main pipeline 6 is located downstream of the pressure pump 5. A valve 11 is provided on the branch pipeline 14. When the test is completed or the pressure in the test bottle 3 needs to be reduced and the pressurized water is discharged, the valve 11 on the branch pipeline 14 is opened, and the return water flows back to the water source 2 through the branch pipeline 14.

[0040] Working mode and principle of this utility model:

[0041] During operation, water flows from the water source 2 to the bottle body through the pressure pump 5 to increase pressure, and the pressure is maintained after reaching the rated pressure. The pressure change in the bottle body is detected by the pressure sensor 7, and the temperature change of the test bottle body 3 is detected by the temperature sensor 8. At the same time, the ultraviolet lamp 4 is turned on to simulate the sunlight environment. The fatigue test of the hydrogen storage cylinder body is carried out through the extreme pressure cycle test method, which makes up for the exploration of the damage to the cylinder caused by the sunlight environment and adds protection for the safe use of large-volume hydrogen storage cylinders.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fatigue test tool for gas cylinders under simulated sunlight, characterized in that: It comprises a box body and a water source, wherein the test bottle body is arranged in the box body, and an ultraviolet lamp is arranged around the test bottle body in the box body; The water source is connected to the test bottle through a pressure pump and a main pipeline, and a pressure sensor is provided in the test bottle.

2. The fatigue test fixture for gas cylinders under simulated sunlight according to claim 1 is characterized in that: A temperature sensor is provided on the outer wall of the test bottle.

3. The fatigue test fixture for gas cylinders under simulated sunlight according to claim 1 is characterized in that: The plurality of ultraviolet lamps irradiate toward the test bottle body.

4. The fatigue test fixture for gas cylinders under simulated sunlight according to claim 1, characterized in that: The box body is a metal explosion-proof box.

5. The fatigue test fixture for gas cylinders under simulated sunlight according to claim 1 is characterized in that: A pressure gauge is provided on the main pipeline downstream of the pressure pump.

6. The fatigue test fixture for gas cylinders under simulated sunlight according to claim 1 is characterized in that: A valve is provided on the main pipeline upstream of the pressure pump.

7. The fatigue test fixture for gas cylinders under simulated sunlight according to claim 1 is characterized in that: An exhaust valve is provided on the main pipeline.

8. The fatigue test fixture for gas cylinders under simulated sunlight according to claim 1 is characterized in that: An overflow valve is provided on the main pipeline.

9. The fatigue test fixture for gas cylinders under simulated sunlight according to claim 1, characterized in that: The water source is connected to the main pipeline via a branch pipeline, and the connection between the branch pipeline and the main pipeline is located downstream of the booster pump.

10. The fatigue test fixture for gas cylinders under simulated sunlight according to claim 9, characterized in that: The branch pipeline is provided with a valve.

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