Shell pressure resistance test method and shell pressure resistance test device

Abstract

The invention provides a shell pressure-resistant test method and a shell pressure-resistant test device, and the test method comprises the following steps: 1) manufacturing a partition plate tool, clamping the partition plate tool between a high-pressure shell and a low-pressure shell for fixed connection, enabling the high-pressure shell and the partition plate tool to define a high-pressure cavity, and enabling the high-pressure cavity and the low-pressure cavity to form a high-pressure cavity; a low-pressure cavity is defined by the low-pressure shell and the partition plate tool, a communicating hole is formed in the partition plate tool, a one-way valve piece is arranged on the communicating hole, and the one-way valve piece can achieve communication from the low-pressure cavity to the high-pressure cavity; (2) air in the high-pressure cavity and the low-pressure cavity is completely exhausted; (3) a medium is introduced into the low-pressure cavity through pressurization equipment, and pressure maintaining is conducted after pressurization is conducted to the pressure needing to be verified; and (5) a medium is introduced into the high-pressure cavity through pressurization equipment, and pressure maintaining is conducted after pressurization is conducted to the pressure needing to be verified. The shell pressure resistance test method can be used for verifying the shell strength of a high-pressure shell and can also be used for verifying the shell strength of a low-pressure shell.

Description

Technical Field

[0001] The present invention relates to the technical field of air-conditioning compressors, and in particular to a shell pressure resistance test method and a shell pressure resistance test device. Background Art

[0002] The shell of the automotive air-conditioning compressor is the main pressure-bearing part of the compressor, and is mostly made of aluminum alloy. Since the compressor is subjected to high and low pressures in the shell when it is working, in order to meet the lightweight requirements, high and low pressure shells need to be designed with different wall thicknesses. When conducting the shell pressure strength test, the high-pressure shell and the low-pressure shell are often used for pressure strength tests respectively to meet the different requirements of high and low pressure. This test method is more complicated to operate and requires the design of different tooling to verify the shell strength, which increases the cost.

[0003] How to design a tool and method that can be used to verify the shell strength of both the high-pressure shell and the low-pressure shell is a problem that technicians in this field need to solve. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the technical problem solved by the present invention 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 shells and low-pressure shells.

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

[0006] 1) Making a partition plate fixture, clamping the partition plate fixture between the high-pressure shell and the low-pressure shell and fixing the fixture between them, the high-pressure shell and the partition plate fixture enclose a high-pressure chamber, the low-pressure shell and the partition plate fixture enclose a low-pressure chamber, a connecting hole is provided on the partition plate fixture, a one-way valve member is provided on the connecting hole, and the one-way valve member can realize the conduction from the low-pressure chamber to the high-pressure chamber;

[0007] 2) exhausting the air in the high-pressure chamber and the low-pressure chamber through the exhaust port on the high-pressure shell and the air intake port on the low-pressure shell;

[0008] 3) Connect the pressurizing device to the air inlet, block the air outlet, introduce the medium into the low-pressure chamber, pressurize to the pressure to be verified, and then maintain the pressure to verify the pressure resistance of the low-pressure housing;

[0009] 5) Connect the pressurizing device to the exhaust port, block the air intake port, introduce the medium into the high-pressure chamber, pressurize to the pressure to be verified, and then maintain the pressure to verify the pressure resistance of the high-pressure shell.

[0010] Preferably, the exhaust port is opened, and a medium is introduced into the low-pressure chamber through a pressurizing device. The air in the low-pressure chamber enters the high-pressure chamber through the one-way valve and is then discharged through the exhaust port. After the air is exhausted, the exhaust port is blocked.

[0011] The present invention also relates to a shell pressure test device, comprising: a partition plate tooling and a one-way valve component arranged on the partition plate tooling; the partition plate tooling is provided with a connecting hole, and the one-way valve component is arranged on the connecting hole; the high-pressure shell, the partition plate tooling and the low-pressure shell are connected in series; the fluid passing through the connecting hole can drive the one-way valve component 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 intake port, and the high-pressure shell is provided with an exhaust port; the exhaust port of the high-pressure shell is connected to one of the connecting pipes, and the air intake port of the low-pressure shell is connected to another connecting pipe, and the connecting pipe can be connected to a pressurizing device or a blind head.

[0012] Preferably, a mounting hole is provided on the partition plate tooling; the one-way valve component includes a valve plate baffle and a valve plate component; the one-way valve component is arranged on the first end face of the partition plate tooling; the valve plate component covers the connecting hole, one end of the valve plate baffle is installed on the mounting hole, and the other end of the valve plate baffle is tilted and located above the valve plate component.

[0013] Furthermore, the mounting hole and the communicating hole are both arranged in the middle of the partition plate tooling.

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

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

[0016] The fasteners pass through the high-pressure shell connection hole, the fastening through hole and the low-pressure shell connection hole in sequence to connect the high-pressure shell, the partition plate tooling and the low-pressure shell in series.

[0017] Furthermore, all the fastening through holes are evenly arranged along the circumference of the partition plate tooling.

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

[0019] Furthermore, a ferrule joint is provided at the end of the connecting pipe, and the ferrule joint is detachably connected to the pressurizing device or the bulkhead.

[0020] Furthermore, a protrusion is provided at the position where the air intake port is provided on the low-pressure shell or / and at the position where the air exhaust port is provided on the high-pressure shell, and the connecting pipe is matched and fixed on the protrusion through a pressure plate.

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

[0022] In the shell pressure test method of the present invention, the partition plate tooling 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 can be used to verify 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 costs; the shell pressure test device has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the shell pressure resistance test device of Example 1.

[0024] Figure 2 It is a schematic structural diagram of the one-way valve component of the shell pressure test device of Example 1 installed on the partition plate tooling.

[0025] Figure 3 It is a structural schematic diagram of the valve plate component of the shell pressure test device of Example 1 installed on the partition plate tooling.

[0026] Figure 4 It is a structural schematic diagram of a connecting hole provided on a partition plate fixture of a shell pressure test device of Example 1.

[0027] Description of Figure Numbers

[0028] 100 High pressure housing

[0029] 120 Exhaust port

[0030] 200 Low pressure housing

[0031] 220 Inlet

[0032] 300 Divider Plate Tooling

[0033] 310 Fastening through hole

[0034] 320 Mounting holes

[0035] 330 connecting hole

[0036] 400 Check valve parts

[0037] 410 Valve plate

[0038] 420 Valve plate parts

[0039] 510 Connecting pipe

[0040] 520 Compression Fitting

[0041] 530 Platen

[0042] 600 Fasteners

[0043] 700 Bulkhead DETAILED DESCRIPTION

[0044] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0045] Please refer to the attached drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the attached drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0046] Example 1

[0047] like Figures 1 to 4 As shown, the shell pressure test method of this embodiment includes the following steps:

[0048] 1) During the pressure resistance test, the fastener 600 passes through the high-pressure shell connection hole, the fastening through hole 310 and the low-pressure shell connection hole in sequence, and the high-pressure shell 100, the partition plate fixture 300 and the low-pressure shell 200 are connected in series;

[0049] 2) One end of one of the connecting pipes 510 provided with a pressing plate 530 is fastened and connected to the exhaust port 120 of the high-pressure housing 100, and one end of the other connecting pipe 510 provided with a pressing plate 530 is fastened and connected to the air intake port 220 of the low-pressure housing 200;

[0050] 3) The connecting pipe 510 connected to the low-pressure housing 200 is connected to the pressurizing device through the ferrule joint 520; the pressurizing device is fed with a liquid medium, and after the liquid medium enters the low-pressure housing 200, the air in the low-pressure housing 200 passes through the connecting hole 330 on the partition plate fixture 300, and the air in the low-pressure housing 200 can enter the high-pressure housing 100 after the one-way valve member 400 is opened, and the air in the low-pressure housing 200 is discharged from the connecting pipe 510 connected to the high-pressure housing 100; the low-pressure housing After the air in the body 200 is exhausted, the ferrule joint 520 of the connecting pipe 510 connected to the high-pressure shell 100 is sealed with a bulkhead 700; the pressurizing device then introduces a liquid medium so that the liquid medium enters the low-pressure shell 200, and the pressurizing device pressurizes the low-pressure shell 200 to the pressure to be verified, and then maintains the pressure; after the pressure maintenance is completed, when the low-pressure shell 200 is not damaged and the staff determines that the pressure resistance strength of the low-pressure shell 200 meets the preset requirements, the pressure resistance strength verification of the low-pressure shell 200 is completed;

[0051] 4) After the pressure resistance verification of the low-pressure shell 200 is completed, the ferrule joint 520 of the connecting pipe 510 connected to the high-pressure shell 100 is connected to the pressurizing equipment, and the ferrule joint 520 of the connecting pipe 510 connected to the low-pressure shell 200 is sealed with a bulkhead 700;

[0052] The one-way valve member 400 on the partition plate tooling 300 can block the connecting hole 330 in the low-pressure shell 200 to prevent the liquid medium in the high-pressure shell 100 from entering the low-pressure shell 200; the pressurizing device passes the liquid medium into the high-pressure shell 100, and the pressure is maintained after the pressurizing device pressurizes the high-pressure shell 100 to the pressure to be verified; after the pressure maintenance is completed, when the high-pressure shell 100 is not damaged and the staff determines that the pressure resistance of the high-pressure shell 100 meets the preset requirements, the pressure resistance verification of the high-pressure shell 100 is completed.

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

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

[0055] A ferrule joint 520 is provided at one end of the connecting pipe 510, and a pressure plate 530 is provided at the other end of the connecting pipe 510. One end of the connecting pipe 510 provided with the pressure plate 530 is tightly connected to the exhaust port 120 of the high-pressure shell 100, and one end of the connecting pipe 510 provided with the pressure plate 530 is tightly connected to the intake port 220 of the low-pressure shell 200; the one-way valve member 400 is a one-way conducting valve. When the pressurizing device is fed with liquid medium, after the liquid medium enters the low-pressure shell 200, the low-pressure shell 200 is discharged. After the air in the low-pressure shell 200 is pressurized, the one-way valve member 400 can be opened, and the air in the low-pressure shell 200 enters the high-pressure shell 100, and then is discharged from the connecting pipe 510 connected to the high-pressure shell 100; after the air in the low-pressure shell 200 is exhausted, the ferrule joint 520 on the connecting pipe 510 connected to the high-pressure shell 100 is sealed with a bulkhead 700; after the pressurizing device pressurizes the low-pressure shell 200 to the pressure to be verified, the pressure is maintained, and the pressure resistance strength verification of the low-pressure shell 200 is completed;

[0056] Connect the ferrule joint 520 on the connecting pipe 510 connected to the high-pressure shell 100 to the pressurizing device, and use the bulkhead 700 to block the ferrule joint 520 on the connecting pipe 510 connected to the low-pressure shell 200; the one-way valve member 400 on the partition plate fixture 300 can block the connecting hole 330 in the low-pressure shell 200 to prevent the liquid medium in the high-pressure shell 100 from entering the low-pressure shell 200; after the pressurizing device pressurizes the high-pressure shell 100 to the pressure to be verified, the pressure is maintained, and the pressure resistance strength verification of the high-pressure shell 100 is completed. The shell pressure resistance test device has a simple structure and is easy to use.

[0057] The partition plate fixture 300 is provided with a mounting hole 320; the one-way valve component 400 includes a valve plate baffle 410 and a valve plate component 420; the one-way valve component 400 is arranged on the first end surface of the partition plate fixture 300; the valve plate component covers the connecting 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 tilted and located above the valve plate component 420. The one-way valve component 400 has a simple structure and can stably realize the one-way conduction function.

[0058] The mounting hole 320 and the connecting hole 330 are both arranged in the middle of the partition plate fixture 300. The locations of the mounting hole 320 and the connecting hole 330 facilitate the one-way valve member 400 to open after the air in the low-pressure housing 200 is pressurized, and the air in the low-pressure housing 200 enters the high-pressure housing 100.

[0059] The high-pressure shell 100 is provided with a plurality of high-pressure shell connection holes; the low-pressure shell 200 is provided with a plurality of low-pressure shell connection holes; the high-pressure shell connection holes correspond to the low-pressure shell connection holes one by one;

[0060] The partition plate fixture 300 is provided with a plurality of fastening through holes 310; the fastening through holes 310 correspond to the high-pressure shell connection holes one by one;

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

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

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

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

[0065] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A shell pressure test method, characterized in that: The following steps are involved: 1) Making a partition plate fixture, clamping the partition plate fixture between the high-pressure shell and the low-pressure shell and fixing the fixture between them, the high-pressure shell and the partition plate fixture enclose a high-pressure chamber, the low-pressure shell and the partition plate fixture enclose a low-pressure chamber, a connecting hole is provided on the partition plate fixture, a one-way valve member is provided on the connecting hole, and the one-way valve member can realize the conduction from the low-pressure chamber to the high-pressure chamber; 2) exhausting the air in the high-pressure chamber and the low-pressure chamber through the exhaust port on the high-pressure shell and the air intake port on the low-pressure shell; 3) Connect the pressurizing device to the air inlet, block the air outlet, introduce the medium into the low-pressure chamber, pressurize it to the pressure to be verified, and then maintain the pressure to verify the pressure resistance of the low-pressure housing; 5) Connect the pressurizing device to the exhaust port, block the air intake port, introduce the medium into the high-pressure chamber, pressurize to the pressure to be verified, and then maintain the pressure to verify the pressure resistance of the high-pressure shell.

2. The shell pressure test method according to claim 1, characterized in that: The air exhaust step specifically includes opening the exhaust port, introducing a medium into the low-pressure chamber through a pressurizing device, the air in the low-pressure chamber enters the high-pressure chamber through the one-way valve and is then exhausted through the exhaust port, and the exhaust port is sealed after the air is exhausted.

3. A shell pressure test device, comprising: A partition plate tooling (300), a pressurizing device, a blind head, and a one-way valve component (400) arranged on the partition plate tooling (300); a connecting hole (330) is provided on the partition plate tooling (300), and the one-way valve component (400) is arranged on the connecting hole (330); the high-pressure housing (100), the partition plate tooling (300), and the low-pressure housing (200) are connected in series; the fluid passing through the connecting hole (330) can drive the one-way valve component (400) to open, so that the fluid enters the high-pressure housing (100) from the low-pressure housing (200); The low-pressure shell (200) is provided with an air intake port (220), and the high-pressure shell (100) is provided with an air exhaust port (120); the air exhaust port (120) of the high-pressure shell (100) is connected to one of the connecting pipes (510), and the air intake port (220) of the low-pressure shell (200) is connected to the other connecting pipe (510); and the connecting pipe (510) can be connected to a pressurizing device or a bulkhead.

4. The shell pressure test device according to claim 3, characterized in that: The partition plate tooling (300) is provided with a mounting hole (320); The one-way valve component (400) comprises a valve plate baffle (410) and a valve plate component (420); the one-way valve component (400) is arranged on the first end surface of the partition plate tooling (300); the valve plate component (420) covers the connecting hole (330), one end of the valve plate baffle (410) is installed on the installation hole (320), and the other end of the valve plate baffle (410) is tilted and located above the valve plate component (420).

5. The shell pressure test device according to claim 4, characterized in that: The mounting hole (320) and the communicating hole (330) are both arranged in the middle of the partition plate fixture (300).

6. The shell pressure test device according to claim 3, characterized in that: The high-pressure shell (100) is provided with a plurality of high-pressure shell connection holes; the low-pressure shell (200) is provided with a plurality of low-pressure shell connection holes; the high-pressure shell connection holes correspond one-to-one with the low-pressure shell connection holes; the partition plate tooling (300) is provided with a plurality of fastening through holes (310); the fastening through holes (310) correspond one-to-one with the high-pressure shell connection holes; the fasteners (600) pass through the high-pressure shell connection holes, the fastening through holes (310) and the low-pressure shell connection holes in sequence to fix the high-pressure shell (100), the partition plate tooling (300) and the low-pressure shell (200) together.

7. The shell pressure test device according to claim 6, characterized in that: All of the fastening through holes (310) are evenly arranged along the circumference of the partition plate fixture (300).

8. The shell pressure test device according to claim 3, characterized in that: The end of the connecting pipe (510) is provided with a ferrule joint, and the ferrule joint is detachably connected to the pressurizing device or the bulkhead.

9. The shell pressure test device according to claim 3, characterized in that: A protrusion is provided at a position where the air intake port (220) is provided on the low-pressure housing (200) or / and a position where the air exhaust port (120) is provided on the high-pressure housing (100), and the connecting pipe (510) is matched and fixed on the protrusion via a pressing plate (530).

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