Vibration detection device for maintenance of centrifugal compressor

Abstract

The utility model provides a vibration detection device for maintenance of a centrifugal compressor, which relates to the technical field of centrifugal compressors and comprises a vibration probe, and an adjusting assembly is arranged at the lower end of the vibration probe. The adjusting assembly comprises a sliding frame seat, a connecting cylinder, a shell frame, a magnet and a fixing pin, the sliding frame seat is arranged at the lower end of the vibration probe, the connecting cylinder is connected to the middle lower end of the sliding frame seat, the shell frame is arranged at the bottom end of the connecting cylinder, and the magnet is installed on the inner surface of the shell frame. A shell of the centrifugal compressor can be adsorbed through magnets arranged on the inner surface of the shell frame, so that tight attachment between the vibration probe and the vibration position of the centrifugal compressor is greatly improved, and the stability of regular detection of the vibration position of the centrifugal compressor is improved; the vibration probe helps a maintainer to know the running state of the centrifugal compressor at the first time, find faults and take repair and maintenance measures.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal compressors, in particular to a vibration detection device for maintaining centrifugal compressors. Background Art

[0002] The gap between the rotor of a centrifugal compressor and non-rotating parts such as bearings / walls, shaft seals, impeller seals, and volutes is very small. The rotor rotates continuously at high speed, and its complex rotor dynamics characteristics can easily cause load and stability problems in the bearings.

[0003] The pressure difference between the inlet and outlet of the impeller of the prior art centrifugal compressor will generate axial force on the rotor. When the impeller of the centrifugal compressor is insufficiently lubricated, the oil is aged, the load is unstable, etc., the thrust bearing surface will wear and cause axial displacement. Excessive axial displacement will cause the impeller to rub against the casing and cause damage. The user cannot immediately discover the vibration problem caused by the lock of the centrifugal compressor.

[0004] Therefore, the utility model provides a vibration detection device for maintaining a centrifugal compressor. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings in the prior art and provide a vibration detection device for maintaining a centrifugal compressor.

[0006] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: a vibration detection device for centrifugal compressor maintenance, comprising a vibration probe, wherein an adjustment assembly is provided at the lower end of the vibration probe;

[0007] The adjustment assembly includes a carriage seat, a connecting tube, a shell frame, a magnet stone, and a fixing pin. The lower end of the vibration probe is provided with a carriage seat, and the middle and lower ends of the carriage seat are connected with a connecting tube. The bottom end of the connecting tube is provided with a shell frame, and the inner surface of the shell frame is provided with a magnet stone. A fixing pin is penetrated in the middle of the carriage seat.

[0008] Mounting components are arranged on both sides of the vibration probe; a slide rail is provided in the middle of the mounting component, and a connecting line is connected to the top of the vibration probe.

[0009] As a preferred embodiment, the slide seat is connected to the connecting tube, and the slide seat forms a fixed structure with the housing frame and the magnet stone through a fixing pin.

[0010] The technical effect of adopting the above further scheme is: by providing an adjustment component, the user first places the vibration probe and the adjustment component in the slide rail in the middle of the two sets of mounting sleeves, and the detection head of the vibration probe penetrates into the whole of the adjustment component. The vibration probe is penetrated through the middle of the slide seat, the connecting tube and the shell frame. The vibration probe is attached to the vibration part of the centrifugal compressor, and the magnet stone arranged on the inner surface of the shell frame can adsorb the shell of the centrifugal compressor, which greatly improves the close fit between the vibration probe and the vibration part of the centrifugal compressor, thereby improving the stability of regular detection of the vibration part of the centrifugal compressor and avoiding the vibration probe from falling off from the vibration part of the centrifugal compressor.

[0011] As a preferred embodiment, the carriage seat forms a communication structure with the housing through a connecting tube.

[0012] The technical effect of adopting the above-mentioned further scheme is: the working principle of the existing vibration probe is based on the measurement principle of the vibration sensor, and the signal generated when the centrifugal compressor vibrates is used to analyze information such as vibration frequency, vibration amplitude and vibration shape. The vibration probe is usually composed of two parts: a vibration sensor and a signal processor. It can convert the mechanical energy generated by the vibration of the centrifugal compressor into an electrical signal and transmit it to the signal processor for analysis, so as to facilitate regular vibration detection and processing of the centrifugal compressor. When the vibration probe detects that the vibration frequency of the centrifugal compressor is too large, maintenance personnel are required to perform regular maintenance work on the centrifugal compressor, which helps maintenance personnel to understand the operating status of the centrifugal compressor at the first time, find faults and take repair and maintenance measures.

[0013] As a preferred embodiment, the mounting assembly includes a mounting sleeve, a connecting frame, fixing screws and a positioning plate, and bolts. Mounting sleeves are arranged on both sides of the vibration probe, and a connecting frame is inserted in the middle section of the mounting sleeve. Fixing screws are passed through the middle of the mounting sleeve and the connecting frame. The outer surface of the mounting sleeve is connected to a positioning plate, and a bolt is passed through the middle of the positioning plate.

[0014] The technical effect of adopting the above further solution is that the slide seat is locked in the installation sleeve and the slide rail by the fixing pin to perform positioning and locking.

[0015] As a preferred embodiment, the installation sleeve and the connecting frame are movably connected, and the installation sleeve and the connecting frame form a disassembly structure through fixing screws.

[0016] The technical effect of adopting the above further scheme is: the user fits the mounting sleeve of the mounting assembly onto the vibrating part of the centrifugal compressor, and the mounting sleeve is stretched toward the outside of the connecting frame, so that the fitting space of the mounting sleeve can be expanded, which is suitable for installing centrifugal compressors of different sizes. After adjusting the fitting size, the fixing screws are finally inserted into the middle of the mounting sleeve and the connecting frame for positioning and locking.

[0017] As a preferred implementation, the mounting sleeve and the positioning plate are connected by welding, and the mounting sleeve and the positioning plate form a fixed structure through bolts.

[0018] The technical effect of adopting the above further solution is: using bolts to penetrate the positioning plate connected to the outer surface of the mounting sleeve for positioning and locking, thereby avoiding the vibration generated by the centrifugal compressor from affecting the stability of the installation of the mounting sleeve.

[0019] As a preferred implementation, the mounting assembly and the adjusting assembly are movably connected.

[0020] The technical effect of adopting the above further scheme is that the user can move the vibration probe inserted in the middle of the slide seat in the slide rail of the mounting sleeve, and the detection position of the vibration probe can be moved, which is suitable for detecting and processing different positions of the centrifugal compressor.

[0021] Compared with the prior art, the advantages and positive effects of the utility model are:

[0022] By providing an adjustment component, the user first places the vibration probe and the adjustment component in the slide rails in the middle of the two sets of mounting sleeves, and the detection head of the vibration probe penetrates the entire adjustment component. The vibration probe is inserted into the middle of the slide seat, the connecting tube and the shell frame. The vibration probe fits the vibration part of the centrifugal compressor, and the magnet stone provided on the inner surface of the shell frame can adsorb the shell of the centrifugal compressor, which greatly improves the close fit between the vibration probe and the vibration part of the centrifugal compressor, thereby improving the stability of regular detection of the vibration part of the centrifugal compressor and avoiding the vibration probe from falling off from the vibration part of the centrifugal compressor. The working principle of the existing vibration probe is based on The measurement principle of the vibration sensor is to use the signal generated by the vibration of the centrifugal compressor to analyze information such as vibration frequency, vibration amplitude and vibration shape. The vibration probe is usually composed of two parts: a vibration sensor and a signal processor. It can convert the mechanical energy generated by the vibration of the centrifugal compressor into an electrical signal and transmit it to the signal processor for analysis, so as to facilitate regular vibration detection and processing of the centrifugal compressor. When the vibration probe detects that the vibration frequency of the centrifugal compressor is too large, maintenance personnel are required to perform regular maintenance work on the centrifugal compressor, which helps maintenance personnel to understand the operating status of the centrifugal compressor at the first time, find faults and take repair and maintenance measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the vibration detection device of the utility model;

[0024] Figure 2 This is the internal structure diagram of the vibration probe and adjustment assembly of the utility model;

[0025] Figure 3 It is the internal structure diagram of the adjustment component of the utility model;

[0026] Figure 4 For this utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0027] Among them: 1. Vibration probe; 2. Adjustment assembly; 201. Slide seat; 202. Connecting tube; 203. Shell frame; 204. Magnet stone; 205. Fixing pin; 3. Installation assembly; 301. Installation sleeve; 302. Connecting frame; 303. Fixing screw; 304. Positioning plate; 305. Bolt; 4. Slide rail; 5. Connecting wire. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example

[0030] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model provides a technical solution: a vibration detection device for centrifugal compressor maintenance, comprising a vibration probe 1, and an adjustment component 2 is arranged at the lower end of the vibration probe 1;

[0031] The adjustment assembly 2 includes a carriage seat 201, a connecting tube 202, a shell frame 203, a magnet 204, and a fixing pin 205. The lower end of the vibration probe 1 is provided with a carriage seat 201, and the middle and lower ends of the carriage seat 201 are connected with the connecting tube 202, and the bottom end of the connecting tube 202 is provided with a shell frame 203, and the inner surface of the shell frame 203 is installed with a magnet 204, and the middle part of the carriage seat 201 is penetrated with a fixing pin 205;

[0032] Installation components 3 are provided on both sides of the vibration probe 1; a slide rail 4 is provided in the middle of the installation component 3, and a connecting line 5 is connected to the top of the vibration probe 1. Specifically, first, the user places the vibration probe 1 and the adjustment component 2 in the slide rail 4 in the middle of the two sets of installation sleeves 301, and the detection head of the vibration probe 1 penetrates the whole of the adjustment component 2. The slide seat 201 and the middle of the connecting tube 202 and the shell frame 203 are penetrated by the vibration probe 1. The vibration probe 1 is attached to the vibration part of the centrifugal compressor, and the magnet stone 204 arranged on the inner surface of the shell frame 203 can be adsorbed on the shell of the centrifugal compressor, which greatly improves the close fit between the vibration probe 1 and the vibration part of the centrifugal compressor, thereby improving the regular inspection of the centrifugal compressor. The stability of vibration detection is to prevent the vibration probe 1 from falling off from the vibration part of the centrifugal compressor. The working principle of the existing vibration probe 1 is based on the measurement principle of the vibration sensor. The signal generated when the centrifugal compressor vibrates is used to analyze information such as vibration frequency, vibration amplitude and vibration shape. The vibration probe 1 is usually composed of a vibration sensor and a signal processor. It can convert the mechanical energy generated by the vibration of the centrifugal compressor into an electrical signal and transmit it to the signal processor for analysis, so as to facilitate regular vibration detection and processing of the centrifugal compressor. When the vibration probe 1 detects that the vibration frequency of the centrifugal compressor is too large, maintenance personnel are required to perform regular maintenance work on the centrifugal compressor, which helps maintenance personnel to understand the centrifugal compressor at the first time. The machine is in running state, faults are found and repair and maintenance measures are taken, the slide seat 201 is locked in the installation sleeve 301 and the slide rail 4 by the fixing pin 205 for positioning and locking, the user can move the vibration probe 1 inserted in the middle of the slide seat 201 in the slide rail 4 of the installation sleeve 301, and the detection position of the vibration probe 1 can be moved, which is suitable for detecting different positions of the centrifugal compressor, the user fits the installation sleeve 301 of the installation assembly 3 on the vibration part of the centrifugal compressor, the installation sleeve 301 is stretched toward the outside of the connecting frame 302, and the fitting space of the installation sleeve 301 can be expanded, which is suitable for installing centrifugal compressors of different sizes, and after adjusting the fitting size, finally fix the screw to fix the vibration probe 1. The thread 303 is passed through the middle of the installation sleeve 301 and the connecting frame 302 for positioning and locking. Then, the bolt 305 is passed through the positioning plate 304 connected to the outer surface of the installation sleeve 301 for positioning and locking to avoid the vibration generated by the centrifugal compressor and affect the stability of the installation of the installation sleeve 301. Through this technical solution, the problem that the pressure difference between the inlet and outlet of the impeller of the centrifugal compressor will generate axial force on the rotor is solved. When the impeller of the centrifugal compressor is insufficiently lubricated, the oil is aged, the load is unstable, etc., the thrust bearing surface will be worn and cause axial displacement. Excessive axial displacement will cause the impeller to rub against the housing and cause damage, and the user cannot find the vibration generated by the lock of the centrifugal compressor at the first time.The user first places the vibration probe 1 and the adjustment component 2 in the slide rail 4 in the middle of the two sets of installation sleeves 301, and the detection head of the vibration probe 1 penetrates the whole of the adjustment component 2. The vibration probe 1 is inserted into the middle of the slide seat 201, the connecting tube 202 and the shell frame 203. The vibration probe 1 is attached to the vibration part of the centrifugal compressor, and the magnet 204 arranged on the inner surface of the shell frame 203 can adsorb the shell of the centrifugal compressor, which greatly improves the tight fit between the vibration probe 1 and the vibration part of the centrifugal compressor, thereby improving the stability of regular detection of the vibration part of the centrifugal compressor and avoiding the vibration probe 1 from falling off from the vibration part of the centrifugal compressor. The working principle of the head 1 is based on the measurement principle of the vibration sensor. The signal generated by the centrifugal compressor during vibration is used to analyze information such as vibration frequency, vibration amplitude and vibration form. The vibration probe 1 is usually composed of a vibration sensor and a signal processor. It can convert the mechanical energy generated by the vibration of the centrifugal compressor into an electrical signal and transmit it to the signal processor for analysis, so as to facilitate regular vibration detection and processing of the centrifugal compressor. When the vibration probe 1 detects that the vibration frequency of the centrifugal compressor is too large, maintenance personnel are required to perform regular maintenance work on the centrifugal compressor, which helps maintenance personnel to understand the operating status of the centrifugal compressor at the first time, find faults and take repair and maintenance measures.

[0033] Further, such as Figure 1 and Figure 4 As shown: a slide rail 4 is provided in the middle of the mounting assembly 3. The advantage of this technical solution is that the slide seat 201 is locked in the mounting sleeve 301 and the slide rail 4 by a fixing pin 205 for positioning and locking.

[0034] The above solution still has the problem that it is not convenient to install the vibration probe 1 closely on the outer surface of the centrifugal compressor for detection and processing. Figure 1 and Figure 4As shown: In this scheme, the installation component 3 includes a mounting sleeve 301, a connecting frame 302, a fixing screw 303, a positioning plate 304, and a bolt 305. The mounting sleeves 301 are arranged on both sides of the vibration probe 1, and the connecting frame 302 is inserted in the middle section of the mounting sleeve 301. The middle of the mounting sleeve 301 and the connecting frame 302 is penetrated by a fixing screw 303. The outer surface of the mounting sleeve 301 is connected to the positioning plate 304, and the middle of the positioning plate 304 is penetrated by a bolt 305. The user can move the vibration probe 1 inserted in the middle of the slide seat 201 in the slide rail 4 of the mounting sleeve 301, and can move the detection position of the vibration probe 1, which is suitable for detecting different positions of the centrifugal compressor. The user fits the mounting sleeve 301 of the mounting assembly 3 on the vibration position of the centrifugal compressor, and the mounting sleeve 301 is stretched toward the outside of the connecting frame 302, so that the fitting space of the mounting sleeve 301 can be expanded, which is suitable for installing centrifugal compressors of different sizes. After adjusting the fitting size, finally, the fixing screw 303 is passed through the middle of the mounting sleeve 301 and the connecting frame 302 for positioning and locking. Then, the bolt 305 is passed through the positioning plate 304 connected to the outer surface of the mounting sleeve 301 for positioning and locking, so as to avoid the vibration generated by the centrifugal compressor affecting the stability of the installation of the mounting sleeve 301.

[0035] Working principle:

[0036] like Figure 1-4 As shown:

[0037] First, the user places the vibration probe 1 and the adjustment component 2 in the slide rail 4 in the middle of the two sets of mounting sleeves 301, and the detection head of the vibration probe 1 penetrates the whole of the adjustment component 2. The vibration probe 1 is inserted in the middle of the slide seat 201, the connecting tube 202 and the shell frame 203. The vibration probe 1 is fitted to the vibration part of the centrifugal compressor. The magnet 204 arranged on the inner surface of the shell frame 203 can adsorb the shell of the centrifugal compressor, which greatly improves the tight fit between the vibration probe 1 and the vibration part of the centrifugal compressor, thereby improving the stability of regular vibration detection of the centrifugal compressor and preventing the vibration probe 1 from falling off from the vibration part of the centrifugal compressor. The working principle of the existing vibration probe 1 is based on the measurement principle of the vibration sensor, and the signal generated when the centrifugal compressor vibrates is used to analyze the vibration frequency, vibration amplitude and vibration shape and other information. The vibration probe 1 is usually composed of a vibration sensor and a signal processor. It can convert the mechanical energy generated by the vibration of the centrifugal compressor into an electrical signal and transmit it to the signal processor for analysis, so as to facilitate the regular vibration detection and processing of the centrifugal compressor. When the vibration probe 1 detects that the vibration frequency of the centrifugal compressor is too high, the vibration probe 1 is used to detect that the vibration frequency of the centrifugal compressor is too high. The centrifugal compressor is large and requires maintenance personnel to perform regular maintenance work on it, which helps the maintenance personnel to understand the operating status of the centrifugal compressor in the first place, find faults and take repair and maintenance measures. The slide seat 201 is locked in the installation sleeve 301 and the slide rail 4 by the fixing pin 205 for positioning and locking. The user can move the vibration probe 1 inserted in the middle of the slide seat 201 in the slide rail 4 of the installation sleeve 301, and can move the detection position of the vibration probe 1, which is suitable for detecting different positions of the centrifugal compressor. The user installs the installation sleeve 301 of the installation component 3 1 is fitted on the vibration part of the centrifugal compressor, and the mounting sleeve 301 is stretched toward the outside of the connecting frame 302, so that the fitting space of the mounting sleeve 301 can be expanded, which is suitable for installing centrifugal compressors of different sizes. After adjusting the fitting size, the fixing screw 303 is finally passed through the middle of the mounting sleeve 301 and the connecting frame 302 for positioning and locking. Then, the bolt 305 is passed through the positioning plate 304 connected to the outer surface of the mounting sleeve 301 for positioning and locking, so as to avoid the vibration generated by the centrifugal compressor from affecting the stability of the installation of the mounting sleeve 301.

[0038] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A vibration detection device for centrifugal compressor maintenance, comprising a vibration probe (1), characterized in that: An adjustment component (2) is provided at the lower end of the vibration probe (1); The adjustment assembly (2) comprises a carriage seat (201), a connecting tube (202), a shell frame (203), a magnet (204), and a fixing pin (205); the lower end of the vibration probe (1) is provided with a carriage seat (201), the middle and lower ends of the carriage seat (201) are connected with a connecting tube (202), the bottom end of the connecting tube (202) is provided with a shell frame (203), the inner surface of the shell frame (203) is installed with a magnet (204), and the middle part of the carriage seat (201) is penetrated with a fixing pin (205); Mounting components (3) are arranged on both sides of the vibration probe (1); a slide rail (4) is provided in the middle of the mounting component (3); and a connecting line (5) is connected to the top of the vibration probe (1).

2. A vibration detection device for centrifugal compressor maintenance according to claim 1, characterized in that: The slide seat (201) is connected to the connecting tube (202), and the slide seat (201) forms a fixed structure with the housing frame (203) and the magnet stone (204) through a fixing pin (205).

3. A vibration detection device for centrifugal compressor maintenance according to claim 1, characterized in that: The slide seat (201) forms a communication structure with the housing frame (203) via a connecting tube (202).

4. A vibration detection device for centrifugal compressor maintenance according to claim 1, characterized in that: The mounting assembly (3) comprises a mounting sleeve (301), a connecting frame (302), a fixing screw (303), a positioning plate (304), and a bolt (305); the mounting sleeves (301) are arranged on both sides of the vibration probe (1); the connecting frame (302) is inserted into the middle section of the mounting sleeve (301); the middle parts of the mounting sleeve (301) and the connecting frame (302) are penetrated with a fixing screw (303); the outer surface of the mounting sleeve (301) is connected with a positioning plate (304), and the middle part of the positioning plate (304) is penetrated with a bolt (305).

5. A vibration detection device for centrifugal compressor maintenance according to claim 4, characterized in that: The installation sleeve (301) and the connecting frame (302) are movably connected, and the installation sleeve (301) and the connecting frame (302) form a disassembly structure through fixing screws (303).

6. A vibration detection device for centrifugal compressor maintenance according to claim 4, characterized in that: The installation sleeve (301) and the positioning plate (304) are connected by welding, and the installation sleeve (301) and the positioning plate (304) form a fixed structure through bolts (305).

7. A vibration detection device for centrifugal compressor maintenance according to claim 1, characterized in that: The installation component (3) and the adjustment component (2) are movably connected.

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