Compressor pipeline vibration testing device

Abstract

The utility model discloses a compressor pipeline vibration testing device, belongs to the technical field of compressor vibration testing, and particularly relates to a compressor pipeline vibration testing device which comprises a compressor to be tested, a pipeline fixedly connected with the compressor to be tested and a clamping jig. The tightening strap is provided with a fixing table used for fixing the accelerometer and an elastic piece used for clamping or releasing the tightening strap. The clamping jig can be suitable for being connected with pipelines made of various materials; the elastic piece can simply and efficiently adjust the size of the annular tightening strap according to the diameter of the pipe diameter of the compressor connecting pipeline; the size and the shape of the upper surface of the fixing table can be adjusted according to the size of the accelerometer, and adsorption fixation of the fixing table and the accelerometer can be improved. Therefore, vibration monitoring of the compressor and the refrigerating system piping is realized, and comprehensive data support is provided for vibration improvement.

Description

Technical Field

[0001] The utility model belongs to the technical field of compressor vibration testing, and relates to a compressor vibration auxiliary testing device, in particular to a compressor pipeline vibration testing device. Background Art

[0002] Abnormal vibrations generated by compressors during operation can cause problems such as equipment wear and excessive noise, affecting production efficiency and equipment life. In severe cases, they may cause leaks, combustion, explosions, and other accidents. Vibration testing of compressors and their pipelines can effectively monitor the working status of compressors and comprehensively and accurately evaluate the working performance of compressors.

[0003] The vibration measurement device of the traditional compressor is to adsorb the magnetic accelerometer on the surface of the iron object to measure the vibration value of the rotary compressor body. It cannot adsorb non-iron pipes such as the compressor suction and exhaust pipes, and thus cannot measure the axial vibration of the compressor rotor and the discharged gaseous refrigerant. In particular, after the compressor is installed in the refrigeration system, it is impossible to obtain the correlation between the refrigeration system piping vibration and the compressor vibration, and thus achieve comprehensive measurement of the compressor vibration.

[0004] The Chinese invention patent with application number 201910426522.0 discloses a compressor vibration test device, including a C-type clamp, the bottom surface of the C-type clamp is provided with a threaded hole, the threaded hole is adapted with a bolt, the side is provided with an accelerometer fixing plane, and the accelerometer is fixed on the accelerometer fixing plane. When measuring the vibration of the compressor, the C-type clamp is fixed to the suction and exhaust pipes of the compressor or installed on the copper pipe of the refrigeration system piping of the compressor by bolts, thereby realizing the vibration monitoring of the compressor and the refrigeration system piping. However, this C-type clamp fixing method, on the one hand, is easy to fall off from the suction and exhaust pipes of the compressor or the refrigeration system piping during the test; on the other hand, the bolts in the C-type clamp will damage the suction and exhaust pipes of the compressor. Utility Model Content

[0005] To solve the above technical problems, the purpose of the utility model is to provide a compressor piping vibration testing device, which can be tightly connected to the suction and exhaust pipes of a compressor or the piping of a refrigeration system of any diameter, thereby reducing damage to the suction and exhaust pipes of the compressor and realizing a comprehensive analysis of the vibration of the compressor and the piping of the refrigeration system.

[0006] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] An embodiment of the utility model provides a compressor pipeline vibration test device, including a compressor to be tested and a pipeline fixedly connected thereto, and a clamp, wherein the clamp includes a tightening belt for fixing the pipeline, and the tightening belt is respectively provided with a fixing platform for fixing an accelerometer and an elastic member for clamping or releasing the tightening belt.

[0008] As a further technical solution, the fixed platform is a trapezoidal platform, and the upper surface of the trapezoidal platform is a rectangle or a square, which can ensure that the fixed platform and the accelerometer are adsorbed and fixed, thereby improving the measurement accuracy.

[0009] As a further technical solution, the tightening piece includes a bolt and a threaded hole. The bolt is inserted into and slides in the threaded hole. The bolt is adapted to the specifications of the threaded hole. The tightness of the tightening belt is adjusted by sliding the bolt in the threaded hole, thereby realizing the connection between the clamp and the pipeline of any diameter.

[0010] As a further technical solution, the bolt is a bolt with a handle, which is used to directly adjust the tightness of the tightening belt without the need for a screwdriver, thereby improving the adjustment and disassembly efficiency.

[0011] As a further technical solution, the fixed platform and the accelerometer are fixed by magnetic adsorption, and the accelerometer is used to measure the vibration acceleration of the compressor connecting pipeline.

[0012] As a further technical solution, a vibration analyzer is also included. The vibration analyzer is connected to an accelerometer and is used to analyze the vibration acceleration and vibration conditions of the compressor and its connected pipeline or the refrigeration system.

[0013] As a further technical solution, the material of the pipeline is metal or plastic, and the metal is steel, copper or aluminum.

[0014] As a further technical solution, the tightening band is annular, and the size of the tightening band can be adjusted according to the diameter of the pipeline.

[0015] As a further technical solution, the area and shape of the upper surface of the fixing platform can be adjusted according to the size of the accelerometer.

[0016] As a further technical solution, the material of the fixture is selected from stainless steel, carbon steel, copper or aluminum.

[0017] The beneficial effects of the above-mentioned embodiments of the utility model are as follows:

[0018] (1) The clamp is suitable for connecting to pipes of various materials, thereby comprehensively improving the detection of the compressor operating status.

[0019] (2) The elastic member can simply and efficiently adjust the size of the annular tightening band according to the diameter of the compressor connecting pipeline, thereby realizing the connection between the clamp and the compressor connecting pipeline.

[0020] (2) The size and shape of the upper surface of the fixed platform can be adjusted according to the size of the accelerometer, which can improve the adsorption and fixation of the fixed platform and the accelerometer, reduce the error caused by the vibration of the accelerometer itself, and thus comprehensively improve the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0022] Figure 1 It is a front view of the clamping fixture of the utility model;

[0023] Figure 2 It is a top view of the clamp of the utility model;

[0024] Figure 3 It is a side view of the clamp of the utility model.

[0025] The schematic diagram is for illustrative purposes only;

[0026] Among them, there are a tightening band (1), a fixing platform (2), a bolt (3), and a threaded hole (4). DETAILED DESCRIPTION

[0027] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0028] The basic working principle of the compressor is as follows: When the compressor is powered on, the stator generates a magnetic field, causing the rotor to rotate, driving the shaft to rotate, and causing the piston to move eccentrically in the cylinder, thereby compressing the low-temperature and low-pressure gas refrigerant into high-temperature and high-pressure gas that is discharged from the cylinder hole through the muffler cover to the shell. When the rotor and cylinder rotate, the compressor will vibrate; when the refrigerant is discharged from the cylinder, the gas pressure will also cause the compressor to vibrate.

[0029] The medium inside the pipeline used by the compressor to transport chemical raw materials is mostly fluid, that is, gas or liquid. Therefore, the pipeline is divided into gas pipeline and liquid pipeline according to the type of internal medium. Since the fluid parameters in the pipeline often change over time, it often causes pipeline vibration. The air flow pulsation generated by the gas flowing in the pipeline will form a certain resonance with the pipeline vibration, which will bring great harm to production. In order to ensure the normal operation of the compressor and its pipeline, the vibration monitoring of the compressor connecting pipeline has attracted the attention of compressor manufacturers and users.

[0030] However, the vibration measurement device of the traditional compressor is to adsorb the magnetic accelerometer on the surface of the iron object to measure the vibration value of the rotary compressor body. It cannot adsorb non-iron pipes such as the compressor suction and exhaust pipes, and thus cannot measure the axial vibration generated by the compressor rotor and the discharged gaseous refrigerant. In particular, after the compressor is installed in the refrigeration system, it is impossible to obtain the correlation between the refrigeration system piping vibration and the compressor vibration, and thus achieve comprehensive measurement of the compressor vibration.

[0031] Example 1

[0032] In a typical implementation of the present invention, Figure 1 As shown, a compressor pipeline vibration test device is provided, comprising a compressor to be tested, a pipeline fixedly connected thereto, and a clamp, wherein the clamp comprises a tightening band (1) for fixing the pipeline, and the tightening band (1) is respectively provided with a fixing platform (2) for fixing an accelerometer and an elastic member for clamping or releasing the tightening band.

[0033] Preferably, the tightening band (1) is annular, and the size of the tightening band (1) can be adjusted according to the diameter of the pipeline.

[0034] The fixed platform (2) and the accelerometer are fixed by magnetic adsorption, and the accelerometer is used to measure the vibration acceleration of the pipeline, so as to monitor the vibration condition of the compressor. The accelerometer is an existing device, which is selected according to the performance index of the sensor. The fixed platform (2) is a trapezoidal platform, and the upper surface of the trapezoidal platform is rectangular or square, which can ensure that the fixed platform (2) and the accelerometer are tightly adsorbed and fixed, thereby improving the measurement accuracy.

[0035] In some embodiments, the area and shape of the upper surface of the fixed platform (2) can be adjusted according to the size of the accelerometer.

[0036] The tightening member comprises a bolt (3) and a threaded hole (4). The bolt (3) is inserted into and slides in the threaded hole (4). The bolt (3) and the threaded hole (4) are matched in specifications. The tightness of the tightening band (1) is adjusted by sliding the bolt (3) in the threaded hole (4), thereby achieving connection between the clamp and the pipeline.

[0037] Preferably, the bolt (3) is a bolt with a handle, which can be directly used to adjust the tightness of the tightening band (1) without the need for a screwdriver, thereby improving the adjustment and disassembly efficiency.

[0038] In some embodiments, a vibration analyzer is further included, wherein the vibration analyzer is connected to the accelerometer, and the vibration analyzer is used to analyze the vibration acceleration and vibration condition of the compressor or refrigeration system.

[0039] The material of the pipeline is metal or plastic, and the metal is steel, copper or aluminum.

[0040] The material of the fixture is selected from stainless steel, carbon steel, copper or aluminum.

[0041] The test process of the compressor pipeline vibration test device provided in this embodiment is as follows:

[0042] When measuring the vibration of the compressor pipeline, the tightening band (1) is inserted into the measuring position on the copper pipe of the refrigeration system piping of the compressor, the bolt (3) is inserted and slid into the threaded hole (4), and the tightness of the tightening band (1) is adjusted by controlling the sliding of the bolt (3) in the threaded hole (4), thereby realizing the connection between the clamp and the copper pipe of the refrigeration system piping. The accelerometer is adsorbed and fixed on the upper surface of the fixed platform (2), and the vibration value of the copper pipe of the refrigeration system piping is measured by the accelerometer, thereby realizing the vibration monitoring of the copper pipe of the refrigeration system piping.

[0043] In some other embodiments, when the compressor is used for vibration testing of a refrigeration system, the fixture is firmly fixed at the position to be tested, the accelerometer is adsorbed and fixed on the fixed platform (2), and the accelerometer is used to measure the vibration acceleration values ​​of the suction and exhaust pipes of the compressor during operation. The accelerometer is connected to a vibration analyzer, and the vibration analyzer is used to analyze the vibration acceleration values ​​of the compressor or the refrigeration system measured by the accelerometer.

[0044] It can be seen that the above-mentioned clamp is suitable for connecting with pipelines of various materials; the size of the clamp can be adjusted according to the diameter of the pipeline to be measured; the number of threads of the threaded hole can be customized according to actual needs, and the clamp can be fastened to the pipeline to be measured through the cooperation of the bolts and the threaded holes; the size and shape of the upper surface of the fixed platform can be adjusted according to the size of the accelerometer, which can improve the adsorption and fixation of the fixed platform and the accelerometer, reduce the error caused by the vibration of the accelerometer itself, and thus comprehensively improve the measurement accuracy.

[0045] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A compressor pipeline vibration test device, comprising a compressor to be tested and a pipeline fixedly connected thereto, and a fixture, characterized in that: The clamp includes a tightening band for fixing the pipeline, and the tightening band is respectively provided with a fixing platform for fixing the accelerometer and a tightening piece for clamping or releasing the tightening band; the tightening piece includes a bolt and a threaded hole, the bolt is passed through and slides in the threaded hole, and the tightening band is annular.

2. A compressor pipeline vibration test device according to claim 1, characterized in that: The fixing platform is a trapezoidal platform, and the upper surface of the trapezoidal platform is a rectangle or a square.

3. A compressor pipeline vibration test device as claimed in claim 1, characterized in that: The bolt is adapted to the specification of the threaded hole.

4. A compressor pipeline vibration test device as claimed in claim 3, characterized in that: The bolt is a bolt with a handle.

5. A compressor pipeline vibration testing device as claimed in claim 1, characterized in that: The fixing platform and the accelerometer are fixed by magnetic adsorption, and the accelerometer is used to measure the vibration acceleration of the compressor connection pipeline.

6. A compressor pipeline vibration test device as claimed in claim 1, characterized in that: Also included is a vibration analyzer connected to the accelerometer.

7. A compressor pipeline vibration testing device as claimed in claim 1, characterized in that: The material of the pipeline is metal or plastic, and the metal is steel, copper or aluminum.

8. A compressor pipeline vibration test device as claimed in claim 1, characterized in that The size of the tightening band can be adjusted according to the diameter of the pipeline.

9. A compressor pipeline vibration test device as claimed in claim 1, characterized in that ,The area and shape of the upper surface of the fixed platform can be adjusted according to the size of the accelerometer.

10. A compressor pipeline vibration testing device according to claim 1, characterized in that: The material of the fixture is selected from stainless steel, carbon steel, copper or aluminum.

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