Shell pressure resistance test method and shell pressure resistance test device

Abstract

The application provides a shell pressure test method and a shell pressure test device, and the test method comprises the following steps: 1) a partition plate tool is made, the partition plate tool is clamped between a high-pressure shell and a low-pressure shell and fixedly connected, the high-pressure shell and the partition plate tool form a high-pressure chamber, the low-pressure shell and the partition plate tool form a low-pressure chamber, a communication hole is formed in the partition plate tool, a one-way valve is arranged on the communication hole, and the one-way valve can realize the conduction from the low-pressure chamber to the high-pressure chamber; 2) air in the high-pressure chamber and the low-pressure chamber is exhausted; 3) a pressurizing device is used to introduce medium into the low-pressure chamber, and the pressure is kept after being pressurized to the required pressure; and 5) the pressurizing device is used to introduce medium into the high-pressure chamber, and the pressure is kept after being pressurized to the required pressure. The shell pressure test method can be used to verify the shell strength of the high-pressure shell and the shell strength of the low-pressure shell.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioner compressor, in particular to a shell pressure test method and a shell pressure test device. BACKGROUND

[0002] The shell of the air conditioner compressor for vehicle is the main pressure-bearing part of the compressor, which is mostly made of aluminum alloy. Since the shell bears high pressure and low pressure when the compressor is working, different wall thicknesses of the shell are designed to meet the lightweight requirement. In the shell pressure strength test, the high-pressure shell and the low-pressure shell are tested respectively to meet the different requirements of high pressure and low pressure. The test method is relatively complex to operate, and different toolings are needed to verify the shell strength, which increases the cost.

[0003] How to design a tooling and method that can be used to verify the shell strength of both high-pressure shell and low-pressure shell is a problem to be solved by those skilled in the art. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present application is to provide a shell pressure test method and a shell pressure test device that can be used to verify the shell strength of both high-pressure shell and low-pressure shell.

[0005] To achieve the above-mentioned and other related purposes, the present application provides a shell pressure test method, which comprises the following steps:

[0006] 1) A partition plate tooling is made, which is clamped and fixedly connected between the high-pressure shell and the low-pressure shell. The high-pressure shell and the partition plate tooling form a high-pressure chamber, and the low-pressure shell and the partition plate tooling form a low-pressure chamber. A communication hole is formed in the partition plate tooling, and a one-way valve is arranged on the communication hole, which can realize the communication from the low-pressure chamber to the high-pressure chamber;

[0007] 2) The air in the high-pressure chamber and the low-pressure chamber is exhausted through the exhaust port of the high-pressure shell and the air inlet of the low-pressure shell;

[0008] 3) The pressurizing equipment is connected to the air inlet, the exhaust port is blocked, medium is introduced into the low-pressure chamber, and the pressure is increased to the required pressure for pressure retention to verify the pressure resistance of the low-pressure shell;

[0009] 5) The pressurizing equipment is connected to the exhaust port, the air inlet is blocked, medium is introduced into the high-pressure chamber, and the pressure is increased to the required pressure for pressure retention to verify the pressure resistance of the high-pressure shell.

[0010] Preferably, the exhaust port is opened, the medium is introduced into the low-pressure chamber through the pressurizing device, the air in the low-pressure chamber enters the high-pressure chamber through the one-way valve and is discharged through the exhaust port, and the exhaust port is closed after the air is discharged.

[0011] The application also relates to a shell pressure test device, which comprises a partition plate tool and a one-way valve arranged on the partition plate tool; the partition plate tool is provided with a communication hole, and the one-way valve is arranged on the communication hole; the high-pressure shell, the partition plate tool and the low-pressure shell are connected in series; fluid passing through the communication hole can drive the one-way valve to open, so that the fluid enters the high-pressure shell from the low-pressure shell; the low-pressure shell is provided with an air inlet, and the high-pressure shell is provided with an exhaust port; the exhaust port of the high-pressure shell is connected with one connecting pipe, and the air inlet of the low-pressure shell is connected with another connecting pipe; the connecting pipes can be connected with a pressurizing device or a plug.

[0012] Preferably, the partition plate tool is provided with a mounting hole; the one-way valve comprises a valve piece baffle and a valve piece component; the one-way valve is arranged on the first end face of the partition plate tool; the valve piece component covers the communication hole, one end of the valve piece baffle is mounted on the mounting hole, and the other end of the valve piece baffle is raised and located above the valve piece component.

[0013] Further, the mounting hole and the communication hole are arranged on the middle part of the partition plate tool.

[0014] Preferably, the high-pressure shell is provided with a plurality of high-pressure shell connecting holes; the low-pressure shell is provided with a plurality of low-pressure shell connecting holes; the high-pressure shell connecting holes correspond to the low-pressure shell connecting holes one by one;

[0015] The partition plate tool is provided with a plurality of fastening through holes; the fastening through holes correspond to the high-pressure shell connecting holes one by one;

[0016] Fasteners pass through the high-pressure shell connecting holes, the fastening through holes and the low-pressure shell connecting holes in sequence, so that the high-pressure shell, the partition plate tool and the low-pressure shell are connected in series.

[0017] Further, all the fastening through holes are arranged uniformly along the circumference of the partition plate tool.

[0018] Further, all the fastening through holes are arranged on the edge of the partition plate tool.

[0019] Further, the end part of the connecting pipe is provided with a clamping sleeve joint, and the clamping sleeve joint is detachably connected with the pressurizing device or the plug.

[0020] Further, the position of the air inlet on the low-pressure shell and / or the position of the air outlet on the high-pressure shell is provided with a protrusion, and the connecting pipe is fixed on the protrusion by a pressing plate.

[0021] As described above, the shell pressure test method and the shell pressure test device have the following beneficial effects:

[0022] In the shell pressure test method, the partition plate tool connects the high-pressure shell and the low-pressure shell, and the shell pressure test method can be used to verify the shell strength of the high-pressure shell and the shell strength of the low-pressure shell; the shell pressure test method is convenient and easy to operate, can save the time of shell pressure strength test verification, and can effectively reduce the cost; the shell pressure test device has a simple structure and is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 is a structural schematic diagram of the shell pressure test device of embodiment 1.

[0024] Fig. 2 is a structural schematic diagram of the shell pressure test device of embodiment 1, in which the one-way valve piece is installed on the partition plate tool.

[0025] Fig. 3 is a structural schematic diagram of the shell pressure test device of embodiment 1, in which the valve piece component is installed on the partition plate tool.

[0026] Fig. 4 is a structural schematic diagram of the shell pressure test device of embodiment 1, in which the partition plate tool is provided with a communication hole.

[0027] BRIEF DESCRIPTION OF DRAWINGS

[0028] 100 high-pressure shell

[0029] 120 air outlet

[0030] 200 low-pressure shell

[0031] 220 air inlet

[0032] 300 partition plate tool

[0033] 310 fastening through hole

[0034] 320 mounting hole

[0035] 330 communication hole

[0036] 400 one-way valve piece

[0037] 410 valve piece baffle

[0038] 420 valve piece component

[0039] 510 connecting pipe

[0040] 520 ferrule joint

[0041] 530 pressing plate

[0042] 600 fastener

[0043] 700 plug DETAILED DESCRIPTION

[0044] The following illustrates the embodiments of the present application by specific examples, and other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure of the present specification.

[0045] Please refer to the drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings attached to the present specification are only used to cooperate with the disclosure of the present specification for those skilled in the art to understand and read, and are not used to limit the defined conditions that the present application can be implemented, so they do not have technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that the present application can produce, should still fall within the scope of the technology disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are only for the convenience of clear description, and are not used to limit the scope of the present application, and the change or adjustment of the relative relationship without substantial change of the technical content is also considered as the scope of the present application.

[0046] Example 1

[0047] As shown in the figure, the shell pressure test method of the present embodiment includes the following steps: Figs. 1 to 4

[0048] 1) During the pressure strength test, the fastener 600 is sequentially inserted through the high-pressure shell connecting hole, the fastening through hole 310 and the low-pressure shell connecting hole, and the high-pressure shell 100, the partition plate tooling 300 and the low-pressure shell 200 are connected in series;

[0049] 2) One end of the setting pressing plate 530 of one of the connecting pipes 510 is fastened and connected with the exhaust port 120 of the high-pressure shell 100, and the other end of the setting pressing plate 530 of the other connecting pipe 510 is fastened and connected with the suction port 220 of the low-pressure shell 200;

[0050] ​3) the connecting pipe 510 connected with the low-pressure shell 200 is connected with the pressurizing equipment through the sleeve joint 520; the pressurizing equipment is connected with the liquid medium, after the liquid medium enters the low-pressure shell 200, the air in the low-pressure shell 200 passes through the communication hole 330 on the partition plate tooling 300, and the air in the low-pressure shell 200 can open the one-way valve piece 400 and then enters the high-pressure shell 100, and the air in the low-pressure shell 200 is discharged from the connecting pipe 510 connected with the high-pressure shell 100; after the air in the low-pressure shell 200 is discharged, the sleeve joint 520 of the connecting pipe 510 connected with the high-pressure shell 100 is blocked by the plug 700; the pressurizing equipment is connected with the liquid medium again, so that the liquid medium enters the low-pressure shell 200, and the pressure of the low-pressure shell 200 is kept after the pressurizing equipment is pressurized to the required pressure; when the low-pressure shell 200 is not damaged and the staff judges that the pressure strength of the low-pressure shell 200 meets the preset requirements, the pressure strength verification of the low-pressure shell 200 is completed;

[0051] 4) after the pressure strength verification of the low-pressure shell 200 is completed, the sleeve joint 520 of the connecting pipe 510 connected with the high-pressure shell 100 is connected with the pressurizing equipment, and the sleeve joint 520 of the connecting pipe 510 connected with the low-pressure shell 200 is blocked by the plug 700;

[0052] The one-way valve piece 400 on the partition plate tooling 300 can block the communication hole 330 in the low-pressure shell 200, so that the liquid medium in the high-pressure shell 100 cannot enter the low-pressure shell 200; the pressurizing equipment is connected with the liquid medium, so that the liquid medium enters the high-pressure shell 100, and the pressure of the high-pressure shell 100 is kept after the pressurizing equipment is pressurized to the required pressure; when the high-pressure shell 100 is not damaged and the staff judges that the pressure strength of the high-pressure shell 100 meets the preset requirements, the pressure strength verification of the high-pressure shell 100 is completed.

[0053] In the shell pressure test method of the application, the partition plate tooling 300 connects the high-pressure shell 100 and the low-pressure shell 200, and the shell pressure test method can be used to verify the shell strength of the high-pressure shell 100 and the shell strength of the low-pressure shell 200; the shell pressure test method is convenient and easy to operate, can save the time of shell pressure strength test verification, and can effectively reduce the cost.

[0054] The shell pressure test device of the embodiment comprises: a partition plate tool 300 and a one-way valve piece 400 arranged on the partition plate tool 300; the partition plate tool 300 is provided with a communication hole 330, and the one-way valve piece 400 is arranged on the communication hole 330; a high-pressure shell 100, the partition plate tool 300 and a low-pressure shell 200 are connected in series; fluid passing through the communication hole 330 can drive the one-way valve piece 400 to open, so that the fluid enters the high-pressure shell 100 from the low-pressure shell 200; the low-pressure shell 200 is provided with an air inlet 220, and the high-pressure shell 100 is provided with an air outlet 120; the air outlet 120 of the high-pressure shell 100 is connected with one of the connecting pipes 510, and the air inlet 220 of the low-pressure shell 200 is connected with the other connecting pipe 510. The first end surface of the partition plate tool 300 and the high-pressure shell 100 form a high-pressure cavity; the second end surface of the partition plate tool 300 is arranged opposite to the first end surface of the partition plate tool 300, and the second end surface of the partition plate tool 300 and the low-pressure shell 200 form a low-pressure cavity.

[0055] One end of the connecting pipe 510 is provided with a sleeve joint 520, and the other end of the connecting pipe 510 is provided with a pressing plate 530; one end of the connecting pipe 510 provided with the pressing plate 530 is tightly connected with the air outlet 120 of the high-pressure shell 100, and the other end of the connecting pipe 510 provided with the pressing plate 530 is tightly connected with the air inlet 220 of the low-pressure shell 200; the one-way valve piece 400 is a one-way valve, liquid medium is introduced into the low-pressure shell 200 by a pressurizing device, the air in the low-pressure shell 200 is pressurized and can open the one-way valve piece 400, the air in the low-pressure shell 200 enters the high-pressure shell 100 and is discharged from the connecting pipe 510 connected with the high-pressure shell 100; after the air in the low-pressure shell 200 is discharged, the sleeve joint 520 of the connecting pipe 510 connected with the high-pressure shell 100 is blocked by a plug 700; after the low-pressure shell 200 is pressurized to the required pressure by the pressurizing device, the pressure is maintained, and the pressure resistance test of the low-pressure shell 200 is completed;

[0056] The sleeve joint 520 of the connecting pipe 510 connected with the high-pressure shell 100 is connected with the pressurizing device, and the sleeve joint 520 of the connecting pipe 510 connected with the low-pressure shell 200 is blocked by the plug 700; the one-way valve piece 400 on the partition plate tool 300 can block the communication hole 330 in the low-pressure shell 200, so that the liquid medium in the high-pressure shell 100 cannot enter the low-pressure shell 200; after the high-pressure shell 100 is pressurized to the required pressure by the pressurizing device, the pressure is maintained, and the pressure resistance test of the high-pressure shell 100 is completed. The shell pressure test device has the advantages of simple structure and convenient use.

[0057] The partition plate tool 300 is provided with a mounting hole 320; the one-way valve member 400 comprises a valve plate baffle 410 and a valve plate component 420; the one-way valve member 400 is arranged on the first end surface of the partition plate tool 300; the valve plate component covers the communication hole 330, one end of the valve plate baffle 410 is mounted on the mounting hole 320, and the other end of the valve plate baffle 410 is raised above the valve plate component 420. The one-way valve member 400 has a simple structure and can stably realize the one-way conduction function.

[0058] The mounting hole 320 and the communication hole 330 are both arranged in the middle part of the partition plate tool 300. The positions of the mounting hole 320 and the communication hole 330 facilitate the opening of the one-way valve member 400 after the air in the low-pressure shell 200 is pressurized, and the air in the low-pressure shell 200 enters the high-pressure shell 100.

[0059] The high-pressure shell 100 is provided with a plurality of high-pressure shell connecting holes; the low-pressure shell 200 is provided with a plurality of low-pressure shell connecting holes; the high-pressure shell connecting holes and the low-pressure shell connecting holes correspond to each other in one-to-one correspondence;

[0060] The partition plate tool 300 is provided with a plurality of fastening through holes 310; the fastening through holes 310 correspond to the high-pressure shell connecting holes in one-to-one correspondence;

[0061] The fastener 600 sequentially passes through the high-pressure shell connecting hole, the fastening through hole 310 and the low-pressure shell connecting hole, and connects the high-pressure shell 100, the partition plate tool 300 and the low-pressure shell 200 in series.

[0062] Through a simple connection mode, the high-pressure shell 100, the partition plate tool 300 and the low-pressure shell 200 are stably connected in series.

[0063] All the fastening through holes 310 are uniformly arranged along the circumference of the partition plate tool 300, and this structure enables the fastener 600 to stably connect the high-pressure shell 100, the partition plate tool 300 and the low-pressure shell 200 in series.

[0064] All the fastening through holes 310 are arranged on the edge of the partition plate tool 300. This structure facilitates the fastener 600 to connect the high-pressure shell 100, the partition plate tool 300 and the low-pressure shell 200 in series.

[0065] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A method of shell pressure test, characterized by, The method comprises the following steps: Step 1, a partition plate tool is made, the partition plate tool is clamped between the high-pressure shell and the low-pressure shell, and is fixedly connected, the high-pressure shell and the partition plate tool jointly form a high-pressure chamber, the low-pressure shell and the partition plate tool jointly form a low-pressure chamber, a communication hole is formed on the partition plate tool, a one-way valve element is arranged on the communication hole, and the one-way valve element can realize the conduction from the low-pressure chamber to the high-pressure chamber; Step 2, air in the high-pressure chamber and the low-pressure chamber is exhausted through an exhaust port on the high-pressure shell and an air inlet on the low-pressure shell; the air exhausting step specifically comprises the following steps: the exhaust port is opened, a medium is introduced into the low-pressure chamber through a pressurizing device, air in the low-pressure chamber enters the high-pressure chamber through the one-way valve and is exhausted through the exhaust port, and the exhaust port is blocked after the air is exhausted; Step 3, the pressurizing device is connected to the air inlet, the exhaust port is blocked, the medium is introduced into the low-pressure chamber, and the low-pressure chamber is pressurized to a required pressure for pressure maintaining, and the pressure resistance of the low-pressure shell is verified; Step 4, the pressurizing device is connected to the exhaust port, the air inlet is blocked, the medium is introduced into the high-pressure chamber, and the high-pressure chamber is pressurized to a required pressure for pressure maintaining, and the pressure resistance of the high-pressure shell is verified.

2. A shell pressure test device comprising: The partition plate tool (300), the pressurizing device, the plug and the one-way valve element (400) arranged on the partition plate tool (300); the partition plate tool (300) is provided with a communication hole (330), and the one-way valve element (400) is arranged on the communication hole (330); the high-pressure shell (100), the partition plate tool (300) and the low-pressure shell (200) are connected in series; fluid passing through the communication hole (330) can drive the one-way valve element (400) to open, so that the fluid enters the high-pressure shell (100) from the low-pressure shell (200); the low-pressure shell (200) is provided with an air inlet (220), and the high-pressure shell (100) is provided with an exhaust port (120); the exhaust port (120) of the high-pressure shell (100) is connected with one connecting pipe (510), the air inlet (220) of the low-pressure shell (200) is connected with another connecting pipe (510), and the connecting pipe (510) is used for being connected with the pressurizing device or the plug.

3. The shell pressure test device according to claim 2, wherein: the partition plate tool (300) is provided with a mounting hole (320); the one-way valve element (400) comprises a valve piece baffle (410) and a valve piece component (420); the one-way valve element (400) is arranged on the first end face of the partition plate tool (300); the valve piece component (420) covers the communication hole (330), one end of the valve piece baffle (410) is mounted on the mounting hole (320), and the other end of the valve piece baffle (410) is raised and located above the valve piece component (420).

4. The case pressure test apparatus according to claim 3, characterized by: The mounting hole (320) and the communication hole (330) are arranged in the middle of the partition plate tooling (300).

5. The case pressure test apparatus according to claim 2, characterized by: The high-pressure shell (100) is provided with a plurality of high-pressure shell connecting holes; the low-pressure shell (200) is provided with a plurality of low-pressure shell connecting holes; the high-pressure shell connecting holes and the low-pressure shell connecting holes correspond to each other; the partition plate tooling (300) is provided with a plurality of fastening through holes (310); the fastening through holes (310) correspond to the high-pressure shell connecting holes; fasteners (600) pass through the high-pressure shell connecting holes, the fastening through holes (310) and the low-pressure shell connecting holes in sequence, and the high-pressure shell (100), the partition plate tooling (300) and the low-pressure shell (200) are fixedly connected.

6. The case pressure test apparatus according to claim 5, characterized by: All the fastening through holes (310) are uniformly arranged along the circumference of the partition plate tooling (300).

7. The case pressure test apparatus according to claim 2, characterized by: The end of the connecting pipe (510) is provided with a clamping sleeve joint, and the clamping sleeve joint is detachably connected with the pressurizing equipment or a plug.

8. The case pressure test apparatus according to claim 2, characterized by: The position where the low-pressure shell (200) is provided with the air suction port (220) or / and the position where the high-pressure shell (100) is provided with the air exhaust port (120) is provided with a protrusion, and the connecting pipe (510) is matched and fixed on the protrusion through a pressing plate (530).

Images