Portable compressor leak detection device

Abstract

The utility model provides a portable compressor leak detection device. Relates to the field of compressor detection, and aims to solve the problem that a pressure gas source is inconvenient to provide in a compressor test scene and a maintenance scene after installation at present, an online unqualified empty shell machine is transformed to serve as gas storage equipment, and a pressure gauge, a one-way valve, a control valve, a quick connector and other elements are installed through pipelines arranged on the empty shell machine. The portable pressure tank can be connected into an exhaust pipe of a compressor needing to be detected through a quick connector, whether the compressor leaks or not is judged, the leakage value can be determined by reading the pressure indicator, and the problems that under a compressor test scene, large-scale pressure equipment is inconvenient to arrange, and economic benefits are poor when the pressure equipment is independently purchased are solved. The recycling of unqualified products is realized, and the economic benefit is improved while the requirement on the working efficiency is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the compressor detection field, especially a portable compressor leak detection device. BACKGROUND

[0002] At present, the refrigerator compressor needs to verify the leakage of internal parts after completing the reliability test; the refrigerator compressor sucks refrigerant into the cavity through the suction side, and then compresses the refrigerant into high-temperature and high-pressure gas to the exhaust side, and discharges the compressor through the exhaust pipe. In the compressor fault type, the leakage in the exhaust pipe will cause poor refrigeration effect of the compressor or even no refrigeration, and the function loss. In checking the compressor fault, or doing some type test, or doing some design verification (such as verifying the connector through the anti-vibration test) to the exhaust pipe; Especially some tests on whether the internal air flow channel connector is broken, need to reverse the high pressure gas through the exhaust side of the compressor, and judge whether the fault occurs by whether the pressure value decreases. For such needs, it is not convenient to install a gas compressor in the test site to test the pressure source, and the conventional way is to transfer the compressor to the special test equipment on the production line for testing, but the detection efficiency is low.

[0003] Chinese patent (publication number CN 221400878 U, publication date 20240723) discloses a kind of detection system before air compressor leaves factory, including the gas storage tank and test pipe group connected in sequence on air compressor, test pipe group includes different discharge flow large flow pipe and small flow pipe, and micro-adjusting control mechanism is arranged on large flow pipe and small flow pipe, can detect air compressor before leaving factory, improve the stability of air compressor in later use process. The gas storage tank is still in fixed position, suitable for a large number of detection scenes on factory production line, but the pressure vessel is inconvenient to transfer and cannot be stored in test space for a long time, there is a big security risk, therefore, this detection system is not suitable for monitoring scene when specific test is carried out on compressor;In addition, when the compressor is installed and repaired, high pressure gas also needs to be filled into the exhaust side of the compressor in reverse, if traditional small gas storage tank is purchased, it will increase the economic burden of enterprise, and for the compressor shell defective product that is not qualified due to size error in online detection, it is difficult to repair and use, can only be scrapped, causing resource waste. UTILITY MODEL CONTENTS

[0004] The utility model discloses a portable compressor leak detection device for the defects of prior art, utilize the compressor empty shell of online unqualified to reform as gas storage equipment, and utilize the pipeline of compressor empty shell and install pressure gauge, check valve, control valve and quick coupling element, form the pressure tank of higher portability, can be connected through quick coupling the exhaust pipe of compressor that needs to be detected, judge whether compressor leaks, and can read the pressure display number to determine the leakage value, satisfy the problem that large pressure equipment is inconveniently arranged under the compressor test scene, the economic benefit of separate purchase pressure equipment is poor, realize the reuse of unqualified products, satisfy the work efficiency demand, and improve the economic benefit.

[0005] In order to realize the above-mentioned purpose, adopt the following technical scheme:

[0006] A kind of portable compressor leak detection device, comprising:

[0007] Empty shell, the shell structure with cavity in the inside, suction pipe, exhaust pipe and process pipe that are communicated with cavity respectively are installed on the outer wall of empty shell;

[0008] Detection component, including pressure gauge, check valve and quick coupling, are installed on suction pipe, exhaust pipe and process pipe one by one, quick coupling is connected through corresponding pipeline after control valve and communicates with cavity, check valve is used to inject pressure gas into cavity, pressure gauge is used to detect the air pressure in cavity, and quick coupling is used to connect the pipeline of external compressor to be detected.

[0009] Further, the top of the empty shell is provided with a handle.

[0010] Further, a foot pad is installed on the foot of the empty shell.

[0011] Further, bolt holes are formed in the foot, and the foot pad is installed in the foot in cooperation with the bolt holes.

[0012] Further, the empty shell is provided with a foot on both sides of the vertical axis, each foot is provided with bolt holes, at least three bolt holes cooperate with the foot pad, the bottom surface of all foot pads is a bearing surface for contacting the external support structure, and all bearing surfaces are coplanarly distributed.

[0013] Further, a magnetic element is fixed to the bottom of the empty shell, the bottom surface of the magnetic element is a magnetic surface for attracting the external structure to constrain the position of the empty shell.

[0014] Further, the magnetic surface of the magnetic element is recessed in the bearing surface of the foot pad for contacting the external support structure.

[0015] Further, the pressure gauge is installed on the process pipe, the check valve is installed at the end of the suction pipe, and the check valve and the quick coupling are connected to the exhaust pipe.

[0016] Further, the one-way valve is installed at the end of the exhaust pipe, and the quick connector is connected to the one-way valve through a pipeline.

[0017] Further, the quick connector is connected to the one-way valve through a pipeline.

[0018] Compared with the prior art, the portable compressor leak detection device has the advantages and positive effects that:

[0019] In view of the problem that it is inconvenient to provide a pressure gas source in the compressor test scene and the post-installation maintenance scene, the online unqualified empty shell compressor is reformed as a gas storage device, and elements such as a pressure gauge, a one-way valve, a control valve and a quick connector are installed on the pipeline of the empty shell compressor, so as to form a pressure tank with high portability, which can be connected to the exhaust pipe of the compressor to be detected through the quick connector, to determine whether the compressor leaks, and the pressure indication can be read to determine the leakage value, so as to solve the problems of inconvenience of arranging a large pressure equipment in the compressor test scene and poor economic benefits of separately purchasing a pressure equipment, realize reuse of unqualified products, meet the work efficiency requirement, and improve the economic benefits.

[0020] The compressor empty shell with unqualified size and other non-sealing defects is reformed as a gas storage device to form a pressure tank with high portability, which can be conveniently used in different test scenes, and the safety hazards and inconvenience of transferring caused by the traditional fixed gas storage tank are avoided.

[0021] The foot pads are installed on the feet of the empty shell, and the bottom surfaces of all the foot pads are coplanar, so that the device can be placed more stably and is not easy to fall down during use, and the stability is improved. Meanwhile, the magnetic attraction element is fixed to the bottom of the empty shell, and the magnetic attraction surface is recessed in the bearing surface of the foot pad, so that the empty shell can be fixed in position by being attracted to an external structure through magnetic force, the device is prevented from moving accidentally, and the safety during use is improved.

[0022] The device has relatively simple structure and is convenient to operate by installing corresponding elements on the pipeline of the empty shell. The quick connector is convenient for connecting to the pipeline of the external compressor to be detected, the one-way valve is convenient for injecting pressure gas into the cavity, and the pressure gauge can directly read the air pressure in the cavity, so that the overall operation process is simple and easy for workers to master and use. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application, serve the purpose of explaining the present application, and do not constitute improper limitations on the present application.

[0024] Figure 1 FIG. 1 is a schematic view of a portable compressor leak detection device in an embodiment of the present application.

[0025] Figure 2It is a schematic view of the foot pad in the embodiment of the utility model.

[0026] Figure 3 It is a top view schematic view of the portable compressor leak detection device in the embodiment of the utility model.

[0027] In the figure, 1 is a shell; 2 is a pressure gauge; 3 is a control valve; 4 is a hose; 5 is a one-way valve; and 6 is a quick connector. DETAILED DESCRIPTION

[0028] In a typical embodiment of the utility model, as shown in Figures 1-3 A portable compressor leak detection device is provided.

[0029] When the compressor is transferred into the test space for specific pressure test, it is inconvenient to arrange the fixed pressure equipment in the test space for a long time, and it is also inconvenient to use the fixed pressure equipment for detection in some post-installation maintenance scenes, so it is necessary to externally connect the pressure container which is convenient to move to detect the test space or the post-installation compressor. Based on this, the shell 1 of the compressor which is not qualified online is reformed in the embodiment, the reutilization of unqualified products is realized, the resource waste is reduced, and the enterprise cost is reduced. The shell 1 is reformed into a portable pressure tank, which is convenient to carry and move, is suitable for different test scenes, solves the problem that the large pressure equipment is inconvenient to arrange, and improves the work efficiency. Meanwhile, the device can accurately judge whether the compressor leaks or not, and determine the leakage value through the pressure gauge 2, so that the functional requirements of the compressor detection are met, and an effective means is provided for the quality detection and fault troubleshooting of the compressor.

[0030] As shown in Figures 1-3 The portable compressor leak detection device comprises a shell 1 and a detection assembly, the detection assembly comprises a pressure gauge 2, a one-way valve 5 and a quick connector 6. The shell 1 serves as the main structure of the device, and the cavity in the shell 1 is used for storing pressure gas to provide a pressure source for detection. The suction pipe, the exhaust pipe and the process pipe on the outer wall of the shell 1 are respectively used for connecting different detection assemblies, the pressure gauge 2, the one-way valve 5 and the quick connector 6 are respectively installed on the suction pipe, the exhaust pipe and the process pipe, and the suction pipe, the exhaust pipe and the process pipe are respectively communicated with the cavity of the shell 1, so as to connect the shell 1 and the external detection assembly, realize the functions of gas suction, exhaust and pressure detection and the like. The quick connector 6 is connected in series with the control valve 3 and is communicated with the cavity through the corresponding pipeline, the one-way valve 5 is used for injecting pressure gas into the cavity, the pressure gauge 2 is used for detecting the air pressure in the cavity, and the quick connector 6 is used for connecting the pipeline of the external compressor to be detected.

[0031] In this embodiment, the pressure gauge 2 is installed on the process pipe to detect the air pressure in the cavity of the empty shell 1. By reading the pressure gauge 2, the operator can intuitively understand the pressure in the cavity and determine whether the compressor to be tested has a leak and the value of the leak. The check valve 5 is installed at the end of the suction pipe, which controls the one-way flow of gas and ensures that the pressure gas can only be injected into the cavity to prevent the gas from flowing out in the opposite direction, ensuring the stability of the pressure in the cavity and the accuracy of the detection. The check valve 5 and the quick connector 6 are connected to the exhaust pipe, and the quick connector 6 is used to connect the pipeline of the external compressor to be tested, realizing the quick connection and separation between the device and the compressor to be tested, which is convenient for operation. The control valve 3 in series can control the on-off of the pipeline between the quick connector 6 and the cavity, which is convenient for flexible control of the flow of gas during detection.

[0032] As shown in Figure 1 and Figure 3 , the check valve 5 is installed at the end of the exhaust pipe, one end is connected to the external injection equipment, and the other end leads to the cavity to ensure that the gas flows into the cavity in one direction. The quick connector 6 is connected to the cavity through the corresponding pipeline after the control valve 3, and when detection is needed, the pipeline is opened by the control valve 3 to connect the quick connector 6 to the cavity, so that the pressure gas in the empty shell 1 is introduced into the pipeline of the compressor to be tested for detection.

[0033] As shown in Figure 1 , the top of the empty shell 1 is provided with a handle, which is convenient for the operator to carry the device by hand. Whether it is transferred between different test sites or moved in a narrow space, the handle can make the operation more convenient and easy, effectively reducing the difficulty in the carrying process and improving the work efficiency. At the same time, the handle can also be used to hang on the external structure, such as hooks, rods or protruding structures, which is convenient for temporary mounting and placement of the entire portable compressor leak detection device.

[0034] As shown in Figure 1 , the foot pad is installed on the foot of the empty shell 1 to enhance the stability and safety of the device when placed.

[0035] The foot pad can be a rubber foot pad, as shown in Figure 2 , the foot pad can increase the friction between the device and the placement plane to prevent the device from sliding due to vibration, collision and other reasons during use. At the same time, the foot pad can also play a certain buffering role, reducing the hard contact between the empty shell 1 and the support surface, protecting the foot of the empty shell 1 and prolonging the service life of the device.

[0036] Bolt holes are provided on the foot, and the foot pad is installed on the foot in cooperation with the bolt holes to realize the stable connection of the foot pad and the foot and ensure that the foot pad will not fall off during long-term use.

[0037] The foot pads can be fixed on the machine feet by clamping or by screwing, and the connection is reliable, so that the foot pads can ensure the stability of the device even when the device is frequently moved and used.

[0038] The machine feet are installed on both sides of the vertical axis of the empty shell 1, each machine foot is provided with bolt holes, at least three bolt holes cooperate with the foot pads, the bottom surfaces of all the foot pads are load bearing surfaces that contact the external support structure, and all the load bearing surfaces are coplanar to ensure that the device can maintain a horizontal stable state on any placement plane.

[0039] The multiple machine feet and the coplanar distribution of the foot pad load bearing surfaces enable the device to be uniformly stressed when placed, and tilting does not occur due to unbalanced support points. This satisfies the requirement of accurately reading the pressure gauge 2 values, reduces the problem of errors in pressure measurement caused by device tilting, and reduces the judgment error of compressor leakage.

[0040] As shown in Figure 1 The bottom of the empty shell 1 is fixed with a magnetic element, and the bottom surface of the magnetic element is a magnetic surface for attracting external structures to constrain the position of the empty shell 1, further enhancing the stability of the device in a specific working environment, and preventing accidental movement.

[0041] If the working site has a metal desktop, workbench or other support structure, the magnetic element can be attracted to it, providing additional fixing force for the device. Especially in the case of slight shaking during detection or surrounding personnel activities that may collide with the device, the magnetic element can effectively constrain the position of the empty shell 1, ensuring the smooth progress of the detection work.

[0042] The magnetic surface of the magnetic element is recessed below the load bearing surface of the foot pad that contacts the external support structure, avoiding the influence of the magnetic element on the stability of the device placement, while ensuring the magnetic function and stable placement.

[0043] When the device is placed on a non-magnetic support surface, the foot pad load bearing surface can normally contact the support surface, ensuring stable placement of the device. When the magnetic function is needed, the slightly recessed magnetic surface can be attracted to the metal structure, and the machine feet are located on both sides of the metal structure, which will not block the attraction process. In addition, the slightly recessed magnetic surface can play a magnetic attraction role even though there is a gap between the magnetic surface and the metal structure plane when the foot pad contacts the metal structure plane, thereby assisting in stability, reducing the overall tilting of the device, and ensuring the stability of the device in different use scenarios.

[0044] The pressure gauge 2 is installed on the process pipe to directly and accurately measure the air pressure in the cavity of the empty shell 1. The one-way valve 5 is installed at the end of the suction pipe to ensure that the pressure gas injected from the outside can only enter the cavity in one direction. The one-way valve 5 and the quick connector 6 are connected to the exhaust pipe, so that the pressure gas discharged from the cavity can smoothly enter the exhaust pipe of the compressor to be tested through the quick connector 6, and the one-way valve 5 prevents backflow of the gas, ensuring the correctness of the gas flow direction during the detection and improving the reliability of the detection.

[0045] The one-way valve 5 is installed at the end of the exhaust pipe, and the quick connector 6 is connected to the one-way valve 5 through the pipeline. When injecting pressure gas into the compressor to be tested, it further ensures that the gas can only flow in one direction, preventing the gas in the compressor to be tested from flowing back to the cavity of the empty shell 1. The quick connector 6 is connected to the one-way valve 5 through the pipeline, which not only ensures smooth gas flow, but also facilitates adjustment of the connection position of the quick connector 6 and the compressor to be tested according to the actual detection situation, improving the flexibility of the detection.

[0046] The quick connector 6 and the one-way valve 5 are connected through the hose 4, which increases the flexibility of the connection and facilitates the connection of the device with the compressor to be tested in different detection scenarios.

[0047] The hose 4 has a certain flexibility, which can be bent and adjusted according to the actual space position and the pipeline position of the compressor to be tested when connecting the quick connector 6 and the one-way valve 5, avoiding the inconvenience caused by rigid connection. The device can more easily achieve connection when detecting compressors of different models and installed in different positions, improving the versatility and applicability of the device.

[0048] In this embodiment, when in use, the control valve 3 is closed, the air compressor and other equipment are connected to the one-way valve 5, and the one-way valve 5 is filled into the cavity of the empty shell 1 (generally filled with 1.5mpa), at which time the pressure value of the filling is determined by reading the number of the pressure gauge 2. After standing for 0.5h, it is confirmed that the pointer of the pressure gauge 2 connected to the empty shell 1 does not change, indicating that the portable compressor leak detection device has good sealing performance.

[0049] The other end of the quick connector 6 is connected to the compressor to be tested. After the connection is completed, the control valve 3 is opened, and the high-pressure gas is injected into the compressor to be tested under the action of the pressure difference, and the specific leakage value is determined by reading the number of the pressure gauge 2.

[0050] It should be noted that, since the shell 1 is to be modified into a gas storage device, its material must have sufficient strength. Even if it is originally discarded due to size unqualified, but after modification needs to bear a certain pressure gas storage task. The shell 1 can be made of cast steel material, which has good strength to effectively resist internal gas pressure and avoid dangerous situations such as rupture during use, ensuring the safe operation of the leak detection device. During gas storage, the gas may contain a certain humidity or other corrosive components. Therefore, the shell 1 material should have good corrosion resistance.

[0051] Although the shell 1 is unqualified in size, after modification as a portable device, the overall size should not be too large or too small. Too large is not convenient to carry, losing the advantage of portability; too small may result in insufficient internal gas storage space, which cannot meet the demand for gas pressure and quantity when detecting the compressor. Generally speaking, the shell 1 should be able to adapt to single-handed or shoulder-carrying, and the internal cavity volume should be reasonably selected according to the pressure gas quantity required for common compressor detection, for example, for small household compressor detection, the internal cavity volume of the shell 1 is 5-10 liters more appropriate.

[0052] Although the shell 1 uses unqualified compressor shell, the gas suction pipe, exhaust pipe and process pipe port for connecting the detection assembly must be accurate in size. The port needs to be tightly connected with elements such as pressure gauge 2, one-way valve 5 and quick connector 6, to ensure good sealing, adapt to standard specification pressure gauge 2 connector, and prevent gas leakage during pressure detection, affecting the accuracy of the detection result.

[0053] The internal cavity of the shell 1 should be as flat as possible without obvious protrusions, depressions or residual casting defects. Because internal unevenness may cause poor gas flow in the cavity, affecting the uniformity of pressure distribution. For some internal structures in the shell 1 that may affect gas storage and flow, such as reinforcing ribs in some small compressor shells 1, if they do not affect the overall strength of the shell 1, they should be cleaned and flattened as much as possible.

[0054] Although the shell 1 has size and other non-sealing defects, it must be carefully checked for potential sealing problems before modification. Water pressure test or preliminary gas pressure test can be used to check whether the shell 1 surface and port connection have fine cracks that cause gas leakage. For the small cracks and other sealing problems found, welding, sealing glue plugging and other methods can be used for repair to ensure that the modified shell 1 has good sealing as a gas storage device, meeting the pressure requirements for detecting compressor leakage.

[0055] After the completion of the empty shell 1 transformation and installation of detection components, the entire device needs to be sealed again. A certain pressure of gas is filled into the empty shell 1, and the pressure table 2 value is observed whether it is stable or not. If the pressure is stable, it means that the sealing performance is good, and it can be put into use; if the pressure drops significantly, it needs to recheck the connection and the body of the empty shell 1, and solve the leakage problem to ensure that the leak detection device can accurately detect the leakage of the compressor.

[0056] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A portable compressor leak detection device, characterized in that, The utility model relates to a kind of compressor detection device, including: Empty shell, the shell structure with cavity in the inside, suction pipe, exhaust pipe and process pipe are installed on the outer wall of empty shell respectively and communicate with cavity;Detection component, including pressure gauge, check valve and quick coupling, are installed on suction pipe, exhaust pipe and process pipe one by one, quick coupling is connected through corresponding pipeline after check valve, check valve is used to inject pressure gas into cavity, pressure gauge is used to detect the air pressure in cavity, and quick coupling is used to connect the pipeline of external compressor to be detected.

2. The portable compressor leak detection device of claim 1, wherein, The top of the empty shell is provided with a handle.

3. The portable compressor leak detection apparatus of claim 1, wherein, The machine foot of the empty shell is provided with a foot pad.

4. The portable compressor leak detection apparatus of claim 3, wherein, The machine foot is provided with a bolt hole, and the foot pad is installed on the machine foot in cooperation with the bolt hole.

5. The portable compressor leak detection apparatus of claim 4, wherein, The machine foot is provided with a bolt hole, and the foot pad is installed on the machine foot in cooperation with the bolt hole.

6. Portable compressor leak detection apparatus as claimed in claim 3 or 4 or 5, characterized in that The machine foot is provided with a bolt hole, and the foot pad is installed on the machine foot in cooperation with the bolt hole.

7. The portable compressor leak detection apparatus of claim 6, wherein, The bottom of the empty shell is fixed with a magnetic element, and the bottom surface of the magnetic element is a magnetic surface for attracting external structures to constrain the position of the empty shell.

8. The portable compressor leak detection apparatus of claim 1, wherein, The magnetic surface of the magnetic element is recessed relative to the load-bearing surface of the foot pad.

9. The portable compressor leak detection apparatus of claim 8, wherein, The pressure gauge is installed on the process pipe, the check valve is installed at the end of the suction pipe, and the check valve and the quick coupling are connected to the exhaust pipe.

10. A portable compressor leak detection device as claimed in claim 8 or 9, wherein, The check valve is installed at the end of the exhaust pipe, and the quick coupling is connected to the check valve through the pipeline. The quick coupling and the check valve are connected through a hose.

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