A magnetic levitation centrifugal compressor unit system

Abstract

The application discloses a kind of magnetic suspension centrifugal compressor unit systems, including magnetic suspension centrifugal compressor host, magnetic suspension centrifugal compressor host cooling fan, cooler;It further includes frequency converter, bearing controller, electric control box component;It further includes air intake filter, main exhaust pipe;It further includes automatic relief valve, relief pipeline, muffler;It further includes main water inlet pipeline, water inlet shunt module, main water outlet pipeline, drainage concentration module, Y type filter;It further includes blowdown pipeline, sewage concentration block;It further includes automatic drain valve, condensate water drainage pipeline, condensate water concentration block, ball valve;It further includes heat recovery unit, ball valve.The application changes motor operating frequency to control the power of alternating current motor by frequency control system, provides power supply voltage according to the actual need of motor, so it has the advantage of energy saving.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of centrifugal air compressor, in particular to a magnetic suspension centrifugal compressor unit system. BACKGROUND

[0002] With the increasingly advanced technology in the industrial field, the user's requirements for the environment and noise are also higher. Although the traditional gear type compressor and oil-free screw compressor do not contain oil in the compressed air, if the shaft seal fails, it is not excluded that the compressed air contains a small amount of oil. In this way, food and household goods in people's life will be contaminated to varying degrees. The centrifugal compressor is favored in large industrial fields due to its unique large flow. The magnetic suspension centrifugal compressor has the large flow characteristics of the centrifugal compressor, and breaks through the contact between the bearing and the shaft to realize contactless whole machine oil-free operation. The high-efficiency rare earth permanent magnet motor and high-precision centrifugal impeller make the magnetic suspension centrifugal compressor have high reliability and high efficiency in operation. With the continuous development of society, people pay more and more attention to environmental protection, health and product quality. As one of the very environmentally friendly energy sources, compressed air energy is also increasingly widely used. The magnetic suspension centrifugal compressor may replace the oil-free screw compressor and the gear type centrifugal compressor. In the future, the magnetic suspension centrifugal compressor will be widely used. SUMMARY

[0003] Therefore, in order to solve the above problems, the present application provides a magnetic suspension centrifugal compressor unit system.

[0004] The present application is realized by constructing a magnetic suspension centrifugal compressor unit system, which comprises a magnetic suspension centrifugal compressor main machine, a magnetic suspension centrifugal compressor main machine cooling fan and a cooler. The magnetic suspension centrifugal compressor main machine comprises a magnetic suspension motor and a centrifugal impeller volute and other accessories. The magnetic suspension motor is water-cooled and air-cooled. The centrifugal impeller is divided into a primary impeller and a secondary impeller. The primary impeller and the secondary impeller are respectively installed on the main shaft of the magnetic suspension motor and are distributed in front and back. The magnetic suspension centrifugal compressor main machine cooling fan is connected with the air inlet of the magnetic suspension centrifugal compressor main machine. The magnetic suspension centrifugal compressor main machine and the magnetic suspension centrifugal compressor main machine cooling fan can be installed on the cooler in an up-down structure. The cooler comprises an intermediate cooler and a rear cooler. The cooler is in the shape of a rectangle or a square.

[0005] Preferably, the magnetic suspension motor adopts self-power generation technology, so that the magnetic suspension centrifugal compressor unit system can not use an UPS power supply.

[0006] Preferably, the magnetic suspension centrifugal compressor unit system further comprises a frequency converter, a bearing controller and an electric control box assembly. The frequency converter is a high-speed frequency converter and adopts air-cooled and water-cooled structure. The bearing controller controls the lifting of the magnetic suspension motor bearing. The electric control box assembly is electrically connected with the frequency converter and the magnetic suspension motor.

[0007] Preferably, it further comprises an air inlet filter, which is installed at the front end of the air inlet of the main machine of the magnetic suspension centrifugal compressor, so that the air entering the air inlet of the main machine of the magnetic suspension centrifugal compressor is clean air.

[0008] Preferably, it further comprises a main exhaust pipe, which is connected to the pipe network system of the user for use by the user.

[0009] Preferably, it further comprises an automatic relief valve, a relief pipe and a silencer, wherein the automatic relief valve is installed on the main exhaust pipe, and the relief pipe is located between the automatic relief valve and the silencer.

[0010] Preferably, it further comprises a main water inlet pipe, a water inlet distribution module, a main water outlet pipe, a water outlet concentration module and a Y-shaped filter, wherein the main water inlet pipe is installed on the water inlet distribution module, the water inlet distribution module divides the cooling water into four pipes, which enter the magnetic suspension motor, the intermediate cooler, the frequency converter and the rear cooler, respectively, the main water outlet pipe enters the water outlet concentration module from the magnetic suspension motor, the intermediate cooler, the frequency converter and the rear cooler, respectively, and then is discharged through the main water outlet pipe, and the Y-shaped filter is located between the water inlet pipe and the water inlet distribution module.

[0011] Preferably, it further comprises a sewage pipe and a sewage concentration block, wherein the sewage pipe is installed below the intermediate cooler and the rear cooler, and then is discharged through the pipe into the sewage concentration block.

[0012] Preferably, it further comprises an automatic water outlet valve, a condensate water outlet pipe, a condensate water concentration block and a ball valve, wherein the automatic water outlet valve is installed below the intermediate cooler and the rear cooler, the condensate water outlet pipe is installed between the automatic water outlet valve and the condensate water concentration block, and the ball valve is installed between the intermediate cooler, the rear cooler and the condensate water concentration block.

[0013] Preferably, it further comprises a heat recovery device and a ball valve, wherein the heat recovery device is installed between the water outlet concentration module and the main water outlet pipe, and the ball valve is installed between the heat recovery device and the water outlet concentration module.

[0014] The present application has the following advantages: the present application provides a magnetic suspension centrifugal compressor unit system, which has the following improvements compared with the same type of equipment:

[0015] The magnetic suspension centrifugal compressor unit system adopts a variable frequency control system, and the gas volume and power consumption change linearly, and the power consumption is small; the magnetic suspension motor adopts a magnetic suspension bearing, and the motor spindle and the bearing are not in contact when starting; compared with the traditional gear type centrifugal machine, the advantages are that the centrifugal impeller is directly installed on the motor spindle, the power consumption caused by gear transmission is reduced, there is no mechanical friction when starting, the noise is low, it is truly oil-free, the unit volume is small, the weight is light, the variable frequency speed regulation does not need too many gear ratios, the problem of rising inventory cost caused by spare parts is solved, compared with the oil-free screw compressor, the noise is low, the energy consumption is low, the price is moderate, and the economic cost is more optimal; meanwhile, the heat recovery device is provided, so that the high heat generated in the operation process of the magnetic suspension centrifugal compressor unit can be more reasonably utilized, and the energy efficiency is further improved; the recovered heat can also be used in multiple purposes, for example, hot water can be provided for employees to take a bath, and the economic benefit is obvious. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural principle schematic diagram of the present application;

[0017] Figure 2 is a magnetic suspension main machine diagram of the present application;

[0018] Figure 3 is a water inlet and outlet pipeline diagram of the present application;

[0019] Figure 4 is a drainage pipeline diagram of the present application;

[0020] Figure 5 is an electric control box assembly diagram of the present application.

[0021] Wherein: the magnetic suspension centrifugal compressor main machine is 1, the magnetic suspension motor is 1-1, the first stage impeller is 1-2, the second stage impeller is 1-3, the first stage volute is 1-4, the second stage volute is 1-5, the magnetic suspension centrifugal compressor main machine cooling fan is 2, the cooler is 3, the intermediate cooler is 3-1, the aftercooler is 3-2, the frequency converter is 4, the bearing controller is 5, the electric control box assembly is 6, the air inlet filter is 7, the coarse filter is 7-1, the fine filter is 7-2, the automatic relief valve is 8, the relief pipeline is 9, the silencer is 10, the main water inlet pipeline is 11, the water inlet shunt module is 12, the drainage concentration module is 13, the Y-shaped filter is 14, the blowdown pipeline is 15, the sewage concentration block is 16, the automatic drainage valve is 17, the condensate water drainage pipeline is 18, the condensate water concentration block is 19, the ball valve is 20, the heat recovery device is 21, the main exhaust pipe is 22, the main drainage pipeline is 23, the water inlet pipe I is 24, the water inlet pipe II is 25, the water inlet pipe III is 26, the water inlet pipe IV is 27, the water outlet pipe I is 28, the water outlet pipe II is 29, the water outlet pipe III is 30, and the water outlet pipe IV is 31. DETAILED DESCRIPTION

[0022] The application will be described in detail below with reference to the accompanying drawings Figures 1-5 The application is described in detail, and the technical solutions in the embodiments of the application are clearly and completely described. Obviously, the described embodiments are only some of the embodiments of the application, not all. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the application.

[0023] As shown in the figure, the application provides a magnetic suspension centrifugal compressor unit system by improvement, which comprises a magnetic suspension centrifugal compressor main machine 1, a magnetic suspension centrifugal compressor main machine cooling fan 2 and a cooler 3. The magnetic suspension centrifugal compressor main machine 1 comprises a magnetic suspension motor 1-1 and centrifugal impeller volute and other accessories. The magnetic suspension motor 1-1 is a water cooling + air cooling structure. The centrifugal impeller comprises a first-stage impeller 1-2 and a second-stage impeller 1-3. The first-stage impeller 1-2 and the second-stage impeller 1-3 are respectively installed on the main shaft of the magnetic suspension motor 1-1 and are distributed in front and back. The materials of the first-stage impeller 1-2 and the second-stage impeller 1-3 are titanium alloy. The magnetic suspension centrifugal compressor main machine cooling fan 2 is connected with the air inlet of the magnetic suspension centrifugal compressor main machine 1. The magnetic suspension centrifugal compressor main machine 1 and the magnetic suspension centrifugal compressor main machine cooling fan 2 can be installed on the cooler 3 in a top and bottom structure. The cooler 3 comprises an intermediate cooler 3-1 and a rear cooler 3-2. The cooler 3 is in the shape of a rectangle or a square.

[0024] As shown in the figure, the application provides a magnetic suspension centrifugal compressor unit system by improvement. The magnetic suspension motor 1-1 adopts self-power generation technology. The magnetic suspension centrifugal compressor unit system can not use an UPS power supply. In the whole system, the cost is reduced, and the space is also reduced.

[0025] As shown in the figure, the application provides a magnetic suspension centrifugal compressor unit system by improvement. The magnetic suspension centrifugal compressor unit system further comprises a frequency converter 4, a bearing controller 5 and an electric control box assembly 6. The frequency converter 4 is a high-speed frequency converter and adopts a wind cooling + water cooling structure. The bearing controller 5 controls the lifting of the bearing of the magnetic suspension motor 1-1. When the magnetic suspension unit starts, the bearing controller 5 is started at the same time, so that the magnetic suspension bearing is lifted up. When the magnetic suspension unit stops, the high-speed rotating motor main shaft is slowly reduced in speed until it falls on the bearing at the lowest speed. The bearing controller 5 stops working. In this way, unnecessary high-speed dry friction in the starting and stopping process of the magnetic suspension unit is avoided, and the failure and energy consumption are effectively reduced. The electric control box assembly 6 is electrically connected with the frequency converter 4 and the magnetic suspension motor 1-1.

[0026] As shown in the figure, the present application provides a magnetic suspension centrifugal compressor unit system by improvement, further comprising an air inlet filter 7 installed at the front end of the air inlet of the magnetic suspension centrifugal compressor main machine 1, mainly to make the air entering the air inlet of the magnetic suspension centrifugal compressor main machine 1 clean, the air inlet filter 7 is usually divided into a coarse filter 7-1 and a fine filter 7-2, the coarse filter 7-1 is mainly to prevent large particles, and the cost is low, and the fine filter 7-2 is to prevent particles above 4 microns from entering the impeller, so as to ensure the stable operation of the impeller, prolong the service life of the impeller, and improve the service life of the magnetic suspension centrifugal compressor unit.

[0027] As shown in the figure, the present application provides a magnetic suspension centrifugal compressor unit system by improvement, further comprising a main exhaust pipe 22, the gas discharged from the main exhaust pipe 22 is connected to the pipe network system of the user for use by the user.

[0028] As shown in the figure, the present application provides a magnetic suspension centrifugal compressor unit system by improvement, further comprising an automatic relief valve 8, a relief pipe 9 and a silencer 10, the automatic relief valve 8 is installed on the main exhaust pipe 22, and the relief pipe 9 is located between the automatic relief valve 8 and the silencer 10.

[0029] As shown in the figure, the present application provides a magnetic suspension centrifugal compressor unit system by improvement, further comprising a main water inlet pipe 11, a water inlet shunt module 12, a main water outlet pipe 23, a water outlet concentration module 13 and a Y-shaped filter 14, the main water inlet pipe 11 is installed on the water inlet shunt module 12, the water inlet shunt module 12 divides the cooling water into four pipes, which enter the magnetic suspension motor 1-1, the intermediate cooler 3-1, the frequency converter 4 and the rear cooler 3-2 through the water inlet pipe I 24, the water inlet pipe II 25, the water inlet pipe III 26 and the water inlet pipe IV 27 respectively, the main water outlet pipe 23 is connected to the four water outlet pipes of the magnetic suspension motor 1-1, the intermediate cooler 3-1, the frequency converter 4 and the rear cooler 3-2 respectively, which are the water outlet pipe I 28, the water outlet pipe II 29, the water outlet pipe III 30 and the water outlet pipe IV 31, and then enters the water outlet concentration module 13 and is discharged through the main water outlet pipe 23, the Y-shaped filter 14 is located between the main water inlet pipe 11 and the water inlet shunt module 12, and the Y-shaped filter 14 mainly filters part of the impurities in the water inlet pipe, reduces the chance of impurities entering the cooler 3, the magnetic suspension motor 1-1 and the frequency converter 4, and makes the whole cooling system run without worry.

[0030] As shown in the figure, the present application provides a magnetic suspension centrifugal compressor unit system by improvement, further comprising a blowdown pipe 15 and a sewage concentration block 16, the blowdown pipe 15 is installed below the intermediate cooler 3-1 and the rear cooler 3-2 respectively, and then is discharged into the sewage concentration block 16 through the pipe and is discharged.

[0031] As shown in the figure, the magnetic suspension centrifugal compressor unit system is provided by improving the present application, further comprising an automatic drain valve 17, a condensate drain pipeline 18, a condensate concentration block 19, and a ball valve 20, wherein the automatic drain valve 17 is respectively installed below the intermediate cooler 3-1 and the rear cooler 3-2, the condensate drain pipeline 18 is installed between the automatic drain valve 17 and the condensate concentration block 19, and the ball valve 20 is installed between the intermediate cooler 3-1, the rear cooler 3-2 and the condensate concentration block 19.

[0032] As shown in the figure, the magnetic suspension centrifugal compressor unit system is provided by improving the present application, further comprising a heat recovery device 21 and a ball valve 20, wherein the heat recovery device 21 is installed between the drain concentration module 13 and the main drain pipeline 23, the ball valve 20 is installed between the heat recovery device 21 and the drain concentration module 13, and the ball valve 20 is installed in the bypass pipeline, so that when the user needs heat recovery, the heat is switched to the heat recovery device 21, and when the user does not need heat recovery, the final heat is discharged through the main drain pipeline 23.

[0033] The magnetic suspension centrifugal compressor unit system is provided by improving the present application, which has low maintenance cost, discards the traditional oil filter and the like, and only has an air filter as the only vulnerable part, and is convenient to maintain; the magnetic suspension motor 1-1 is provided with multiple protection and operation mechanisms, so that the magnetic suspension centrifugal compressor main machine 1 is stable and reliable, and always operates at the best working condition point; the magnetic suspension compressor unit is low in noise and free of oil pollution; most of the heat generated during the operation of the magnetic suspension compressor unit can be recovered through the heat recovery device 21, such as the heat generated during the operation of the motor, the heat generated by compressed air, and the heat generated during the operation of the frequency converter 4, so that the unit can save energy for the user as much as possible during use.

[0034] The above shows and describes the basic principles, main features and advantages of the present application. The standard parts used in the present application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings. The specific connection mode of each part adopts the conventional bolt rivet, welding and other conventional means in the prior art. The mechanical parts and equipment adopt conventional types in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0035] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A magnetic levitation centrifugal compressor package system, characterized by: It includes a magnetic suspension centrifugal compressor main machine (1), a magnetic suspension centrifugal compressor main machine cooling fan (2) and a cooler (3), the magnetic suspension centrifugal compressor main machine (1) contains a magnetic suspension motor (1-1) and a centrifugal impeller volute, the centrifugal impeller is divided into a first stage impeller (1-2) and a second stage impeller (1-3), the first stage impeller (1-2) and the second stage impeller (1-3) are respectively installed on the main shaft of the magnetic suspension motor (1-1), the magnetic suspension centrifugal compressor main machine cooling fan (2) is connected with the air inlet of the magnetic suspension centrifugal compressor main machine (1), the magnetic suspension centrifugal compressor main machine (1) and the magnetic suspension centrifugal compressor main machine cooling fan (2) are installed on the cooler (3), and the cooler (3) contains an intermediate cooler (3-1) and a post-cooler (3-2); It also includes a main water inlet pipeline (11), a water inlet shunt module (12), a main drainage pipeline (23), a drainage concentration module (13) and a Y-shaped filter (14), the main water inlet pipeline (11) is installed on the water inlet shunt module (12), the water inlet shunt module (12) divides the cooling water into four pipelines, which respectively enter the magnetic suspension motor (1-1), the intermediate cooler (3-1), the frequency converter (4) and the post-cooler (3-2), the main drainage pipeline (23) respectively enters the drainage concentration module (13) from the magnetic suspension motor (1-1), the intermediate cooler (3-1), the frequency converter (4) and the post-cooler (3-2), and then is discharged through the main drainage pipeline (23), and the Y-shaped filter (14) is located between the main water inlet pipeline (11) and the water inlet shunt module (12); It also includes a blowdown pipeline (15) and a sewage concentration block (16), the blowdown pipeline (15) is respectively installed below the intermediate cooler (3-1) and the post-cooler (3-2), and then is discharged into the sewage concentration block (16) through the pipeline and then is discharged; It also includes an automatic drainage valve (17), a condensate water drainage pipeline (18), a condensate water concentration block (19) and a first ball valve (20), the automatic drainage valve (17) is respectively installed below the intermediate cooler (3-1) and the post-cooler (3-2), the condensate water drainage pipeline (18) is installed between the automatic drainage valve (17) and the condensate water concentration block (19), and the first ball valve (20) is installed between the intermediate cooler (3-1) and the post-cooler (3-2) and the condensate water concentration block (19), further including a heat recovery device (21) and a second ball valve (20), the heat recovery device (21) is installed between the drainage concentration module (13) and the main drainage pipeline (23), and the second ball valve (20) is installed between the heat recovery device (21) and the drainage concentration module (13).

2. The magnetic levitation centrifugal compressor train system of claim 1, wherein: The magnetic suspension motor (1-1) adopts a self-power generation technology.

3. The magnetic levitation centrifugal compressor unit system of claim 1, wherein: It also includes a frequency converter (4), a bearing controller (5) and an electric control box assembly (6), the frequency converter (4) is a high-speed frequency converter and adopts a wind cooling+water cooling structure, the bearing controller (5) controls the lifting of the bearing of the magnetic suspension motor (1-1), and the electric control box assembly (6) is electrically connected with the frequency converter (4) and the magnetic suspension motor (1-1).

4. The magnetic levitation centrifugal compressor train system of claim 1, wherein: It also comprises an air intake filter (7) installed in front of the air intake of the main machine (1) of the magnetic suspension centrifugal compressor.

5. The magnetic levitation centrifugal compressor unit system of claim 1, wherein: It also comprises a main exhaust pipe (22) which discharges the gas into the pipe network system of the user.

6. The magnetic levitation centrifugal compressor unit system of claim 1, wherein: It also comprises an automatic relief valve (8) installed on the main exhaust pipe (22), a relief pipe (9) between the automatic relief valve (8) and a muffler (10).

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