Compact structure of gas control assembly for small fuel cell test chassis

Abstract

The utility model belongs to the field of fuel cell assemblies, and discloses a compact structure of a gas control assembly for a small fuel cell test case. The air inlet pipe, the air inlet valve, the pipeline A, the filter A, the pipeline B, the pressure reducing valve, the pipeline C and the tee joint are sequentially connected with an air source. According to the utility model, more observation points and operation points are concentrated on the front side, thereby facilitating the installation and layout of the case and saving the desktop space; the internal space obstruction is reduced, and the mounting and dismounting difficulty of the equipment is reduced; the computer case is particularly suitable for structural design of a small-sized desktop case.

Description

Technical Field

[0001] The utility model belongs to the field of fuel cell components, and in particular relates to a compact structure of a gas control component used for a small fuel cell test box. Background Art

[0002] The development of fuel cells requires various performance tests, among which small-scale test equipment has two main placement modes: desktop type and ground-standing type. The progress of test technology and test bench manufacturing technology has enabled existing small-scale fuel cell test benches to pursue the miniaturization of the test bench chassis in addition to achieving technical performance goals, so as to save the space occupied by the test device. To achieve this goal, the chassis size is minimized as much as possible during design and manufacturing, especially the front area of ​​the chassis. Therefore, for manual control systems, due to the limitations of the front area and compact installation and connection technology, some detectors have their own display screens or scale dials displayed by mechanical measuring instruments, which have to be distributed to the side or back, including inside the chassis. These observation and control needs often control and observe the side of the chassis, which is inconvenient to operate and observe. The chassis also needs to be isolated from other surrounding equipment to leave an observation position.

[0003] At the same time, the device often uses stainless steel rigid pipes to connect various components. The rigidity of the pipes limits the connection position and sequence of components and pipes. Under the constraints of specific installation characteristics, they often need to be connected in sequence. Installation or disassembly requires involving multiple components, resulting in an increase in space volume. Some components with display functions cannot be installed on the panel and need to be installed on the side or inside the chassis, which increases the size. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a compact structure of a gas control assembly for a small fuel cell test chassis, which uses a U-shaped connection structure design to improve the compactness of the gas control connection assembly displayed on the front, improve the front area utilization of the chassis of the fuel cell test bench, and reduce the mutual rigidity constraints of the components in the connection, making installation and maintenance simple.

[0005] The above-mentioned purpose of the utility model is achieved through the following technical solutions: a compact structure of a gas control component for a small fuel cell test chassis, including an air inlet pipe, an air inlet valve, a pipeline A, a filter A, a pipeline B, a pressure reducing valve, a pipeline C, and a tee connected in sequence to a gas source; the tee is directly connected to a pipeline E, a pressure sensor, a filter B, a pipeline F, a gas mass flow meter, and an air outlet pipe; the tee is vertically connected to a pipeline D and a pressure gauge; wherein the stainless steel pipeline A, pipeline B, pipeline C, pipeline D, pipeline E, and pipeline F are U-shaped, that is, the directions of the openings at both ends of the pipeline are the same; a mounting hole is opened on the front panel of the chassis, and the air inlet valve, the pressure reducing valve, the pressure gauge, and the gas mass flow meter are installed on the mounting hole, and the operating handles of the air inlet valve and the pressure reducing valve, the dial of the pressure gauge, the buttons of the gas mass flow meter and the display screen are all on the operator side of the panel.

[0006] The beneficial effects of the utility model compared with the prior art are:

[0007] 1) It is conducive to reducing the size and weight of the overall device;

[0008] 2) Observation points and operation points are more concentrated on the front, which is convenient for chassis installation and layout, saving desktop space requirements;

[0009] 3) The internal space obstruction is reduced, which reduces the difficulty of installing and disassembling the equipment;

[0010] 4) Particularly suitable for small desktop chassis structure design. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below in conjunction with the accompanying drawings and specific implementations.

[0012] Figure 1 , the basic process of gas pressure and flow control;

[0013] Figure 2 , an axonometric view of Example 1 in the lateral rear direction;

[0014] Figure 3 , front view of the connection structure of Example 1;

[0015] Figure 4 , a top view of the connection structure of Example 1;

[0016] Figure 5 , right view of the connection structure of Example 1;

[0017] Figure 6 , front view of the connection structure of Example 2;

[0018] Figure 7 , a top view of the connection structure of Example 2;

[0019] Figure 8, right side view of the connection structure of Example 2;

[0020] Fig. 9 , front view of the connection structure of Example 3.

[0021] In the figure, 01. Inlet pipe; 02. Inlet valve; 03. Pipe A; 04. Filter A; 05. Pipe B; 06. Pressure reducing valve; 07. Pipe C; 08. Tee; 09. Pipe D; 10. Pressure gauge; 11. Pipe E; 12. Pressure sensor; 13. Filter B; 14. Pipe F; 15. Gas mass flow meter; 16. Outlet pipe; 17. L-shaped right-angle two-way; 18. Pipe G. DETAILED DESCRIPTION

[0022] The present invention is described in detail below through specific examples, but the protection scope of the present invention is not limited. Unless otherwise specified, the experimental methods used in the present invention are all conventional methods, and the experimental equipment, materials, reagents, etc. used can be obtained from commercial channels.

[0023] See also Figure 1 , the basic process of gas pressure and flow control.

[0024] The basic structure of the gas control device is as follows: Figure 1 As shown, the gas from the gas source passes through the air intake valve, filter, and pressure reducing valve. Before reaching the mass flow meter, there is a mechanical pressure gauge, a pressure sensor, and a filter on the pipeline for detecting the pressure. The pressure reducing valve controls the air pressure, and the mass flow meter controls the flow, thereby completing the pressure and flow control of the gas in this route.

[0025] Example 1

[0026] See also Figures 2 to 5 .

[0027] A set of air pressure and flow control components, which are connected in sequence to the air source inlet pipe 01, air inlet valve 02, pipe A03, filter A04, pipe B05, pressure reducing valve 06, pipe C07, and tee 08; the tee's straight connection pipe E11, pressure sensor 12, filter B13, pipe F14, gas mass flowmeter 15, and outlet pipe 16; the tee's vertical connection pipe D09 and pressure gauge 10.

[0028] The stainless steel pipes A, B, C, D, E, and F are U-shaped, that is, the openings at both ends of the pipes are in the same direction. The U-shaped method does not require the position of the connected components to be changed during installation and removal of the pipeline. After setting the straight pipe spacing and length of the U-shaped pipe, it can be directly inserted or removed. This method reduces the space requirements between the connected components. If the conventional pipe opening design does not have a U-shaped setting, then a pipe cannot be directly installed or removed due to rigidity limitations when the pipe openings at both ends are in opposite or vertical directions, and the space requirements are also relatively large.

[0029] An installation hole is opened on the front panel of the chassis, and the air intake valve 03, the pressure reducing valve 07, the pressure gauge 10, and the gas mass flow meter 15 are installed on the installation hole. The operating handles of the air intake valve 03 and the pressure reducing valve 07, the dial of the pressure gauge 10, the buttons and display screen of the gas mass flow meter 15 are all on the operator side of the panel.

[0030] Example 2

[0031] See also Figures 6 to 8 .

[0032] The pipe connection from to is generally C-shaped, with the pipe openings at both ends in a vertical direction. It cannot be directly inserted during installation. First, install one end of pipe E11 to pressure sensor 12, and then connect the other end of pipe E11 to tee 08. Pipe C07 and pipe D09 are installed in the U shape of this technology. When disassembling, first disassemble pipe C07 and pipe D09, and then disassemble pipe E11.

[0033] Example 3

[0034] See also Fig. 9 .

[0035] Different from the second embodiment, the C-type pipe E11 is split into two sections by using an L-shaped right-angle coupling 17, and the pipe G18 forms a U-shaped connection with the L-shaped coupling, which can be directly installed and disassembled.

[0036] This example is used to disassemble a non-U-shaped pipeline into a U-shaped structure.

[0037] The above-mentioned embodiments are only preferred embodiments of the present invention, but not all feasible embodiments of the present invention. For those skilled in the art, any obvious changes made to the present invention without departing from the principle and spirit of the present invention should be considered to be included in the scope of protection of the claims of the present invention.

Claims

1. A compact structure of a gas control assembly for a small fuel cell test cabinet, characterized in that: The invention comprises an air inlet pipe (01), an air inlet valve (02), a pipe A (03), a filter A (04), a pipe B (05), a pressure reducing valve (06), a pipe C (07), and a tee (08) connected in sequence to a gas source; a pipe E (11), a pressure sensor (12), a filter B (13), a pipe F (14), a gas mass flow meter (15), and an air outlet pipe (16) connected in a straight direction to the tee (08); a pipe D (09), and a pressure gauge (10) connected in a vertical direction to the tee (08); wherein the stainless steel pipe A (03 ), pipeline B (05), pipeline C (07), pipeline D (09), pipeline E (11), and pipeline F (14) are U-shaped, that is, the directions of the openings at both ends of the pipeline are the same; a mounting hole is opened on the front panel of the chassis, and the air intake valve (02), the pressure reducing valve (06), the pressure gauge (10), and the gas mass flow meter (15) are installed on the mounting hole, and the operating handles of the air intake valve (02) and the pressure reducing valve (06), the dial of the pressure gauge (10), the button of the gas mass flow meter (15) and the display screen are all on the operator side of the panel.

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