CN214887554U

CN214887554U - Multi-stage booster air compressor

Info

Publication number: CN214887554U
Application number: CN202121005129.3U
Authority: CN
Inventors: 徐成军
Original assignee: Zhongshan Ae Machinery Co ltd
Current assignee: Zhongshan Ae Machinery Co ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2021-11-26
Anticipated expiration: 2031-05-12

Abstract

The utility model discloses a multistage booster air compressor, including a plurality of compressor arrangement that communicate in proper order, a plurality of compressor arrangements start in proper order and compress the air step by step, and a plurality of other first cooling device who is equipped with respectively rather than the intercommunication of compressor arrangement, a plurality of compressor arrangements are including the one-level compressor, second grade compressor, tertiary compressor and the level four compressor of establishing ties in proper order, and the one-level compressor sets up with the second grade compressor symmetry, and tertiary compressor and level four compressor symmetry set up. The high-temperature air output by one air compression mechanism in the two communicated air compression mechanisms is cooled by the first cooling mechanism, and the cooled air is pressed into the other air compression mechanism, so that the high-temperature air after pressurization is cooled each time, and the phenomenon that the air after multiple times of compression is too high in temperature and affects use is avoided.

Description

Multi-stage booster air compressor

[ technical field ] A method for producing a semiconductor device

The present application relates to air compressors, and more particularly to multi-stage charge air compressors.

[ background of the invention ]

Air compressors are widely used as the basis for modern industry. The existing high-pressure air compressor, especially the high-pressure air compressor applied in some special detection industries, has high requirement on air source, requires stable pressure and low exhaust temperature, is difficult to meet stable high-pressure output, even if the pressure of output gas is stable, the exhaust temperature is over 200 ℃, which wastes energy, and the air compressor is easy to cause part abrasion and equipment failure in long-time high-temperature exhaust operation, and is not suitable for continuous production operation.

[ summary of the invention ]

The purpose of this application is in providing multistage charge air compressor, and it cools off the high-temperature air of a compressor arrangement output in two communicating compressor arrangements through first cooling device to in pressing the air after the cooling into another compressor arrangement, make the high-temperature air after the pressurization finishes at every turn obtain cooling, avoid the air temperature through many times of compression too high, influence the use.

The application is realized by the following technical scheme:

multistage booster air compressor, it is including a plurality of compressor arrangement that communicate in proper order, a plurality of compressor arrangement starts in proper order and compresses the air step by step, and is a plurality of the other first cooling device who is equipped with respectively rather than the intercommunication of compressor arrangement, it is a plurality of compressor arrangement is including the one-level compressor, second grade compressor, tertiary compressor and the level four compressor that establish ties in proper order, the one-level compressor with the second grade compressor symmetry sets up, the tertiary compressor with the level four compressor symmetry sets up.

The multistage booster air compressor comprises an air cooling main body and a cooling fan connected to the air cooling main body, wherein the air cooling main body is used for reducing the temperature of high-temperature air output by the compression device, and the cooling fan is used for dissipating heat of the air cooling main body.

In the multi-stage supercharging air compressor, the compression device is provided with a second cooling device for reducing the temperature of the compression device.

According to the multi-stage supercharging air compressor, the compression device is provided with the air inlet valve group and the air outlet valve group, the air inlet valve group is connected with the second power device, and the air outlet valve group is connected with the third power device.

The multistage booster air compressor further comprises a crankshaft driving device which enables the plurality of compression devices to be sequentially started one by one, and the compression devices are provided with air leakage protection devices which prevent compressed air from entering the crankshaft driving device.

The multi-stage supercharging air compressor comprises a compression device and a first piston block, wherein the compression device at least comprises a compression cylinder and the first piston block which can move along the compression cylinder and is abutted against the inner wall of the compression cylinder, a compression cavity for the first piston block to move is formed in the compression cylinder, and the air leakage protection device comprises an air leakage protection cavity and an exhaust through hole, the air leakage protection cavity is communicated with the compression cavity and is close to one side of the crankshaft driving device, and the exhaust through hole is communicated with the air leakage protection cavity.

According to the multistage booster air compressor, the sealed cavity is communicated with one side, close to the crankshaft driving device, of the air leakage protection cavity, the piston connecting rod which forms a gap with the inner wall of the air leakage protection cavity is connected to the first piston block, and the second piston block which moves along the sealed cavity is connected to one end, far away from the compression cylinder, of the piston connecting rod.

The multi-stage booster air compressor as described above, wherein the crankshaft driving device includes a rotatable eccentric crankshaft and a multi-rod connecting rod connected to the eccentric crankshaft, one end of the connecting rod is inserted into the compression cylinder and drives the first piston block to slide along the compression cylinder when the eccentric crankshaft rotates.

The multistage charge air compressor further comprises a gas-liquid separation device communicated with the first cooling device and the compression device respectively, and the gas-liquid separation device is used for separating moisture in the cooling air conveyed by the first cooling device to the compression device.

The multistage booster air compressor further comprises a lubricating device for supplying lubricating oil to the whole machine.

Compared with the prior art, the invention has the following advantages:

1. the utility model discloses a high temperature air of a compressor arrangement output among the compressor arrangement of two intercommunications of first cooling device cooling to during the air after will cooling impresses another compressor arrangement, make the high temperature air after the pressurization finishes at every turn obtain cooling, avoid the air high temperature through a lot of compression, the influence is used.

2. The utility model discloses a level four compression of second cooling body is done further cooling to the compressed air in the air compressor mechanism, when realizing 35Mpa high-pressure exhaust operation, and exhaust temperature can be stabilized below being less than 160 degrees, realizes the long-time steady operation of air compressor machine.

3. The utility model discloses a compressed air gets into crankshaft drive when gas leakage protection device avoids compressor arrangement to leak gas and causes the damage.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below.

FIG. 1 is a perspective view of a multi-stage charge air compressor according to an embodiment of the present application;

FIG. 2 is a perspective view of a compression device and a power device in a multi-stage booster air compressor according to an embodiment of the present disclosure;

FIG. 3 is a cross-sectional view of a compressor unit and a power unit of a multi-stage booster air compressor according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a perspective view of a first cooling arrangement in a multi-stage charge air compressor according to an embodiment of the present application.

[ detailed description ] embodiments

In order to make the technical problems, technical solutions and advantageous effects solved by the present application more clear and obvious, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The multistage booster air compressor shown in fig. 1-5 comprises an initial compression device (not shown) and a multistage compression device (not shown) communicated with the initial compression device, wherein the initial compression device comprises a primary compression device (not shown) and a screw compression device (not shown) communicated with the primary compression device, the screw compression device is connected with the multistage compression device, the multistage compression device comprises a plurality of compression devices 2 communicated in sequence, the plurality of compression devices 2 are sequentially started and compress air step by step, the multistage booster air compressor further comprises a first cooling device 3 communicated with the plurality of compression devices 2, the first cooling device 3 is used for cooling high-temperature air output by one compression device 2 in two sequentially communicated compression devices 2 and inputting the cooled air into the other compression device 2, the crankshaft driving device 1 is further provided for sequentially starting the plurality of compressing devices 2 one by one. Wherein, a plurality of the compression devices 2 comprise a first-stage compressor 21, a second-stage compressor 22, a third-stage compressor 23 and a fourth-stage compressor 24 which are connected in series in sequence. The first-stage compressor 21 and the second-stage compressor 22 are symmetrically arranged on the crankshaft driving device 1, and the third-stage compressor 23 and the fourth-stage compressor 24 are symmetrically arranged on the crankshaft driving device 1. The utility model discloses a plurality of start-up compressed air one by one in proper order compressor arrangement 2 makes the air flow in proper order a plurality ofly compressor arrangement 2 realizes the gradual pressure boost of air, satisfies operating pressure's demand, simultaneously, through two intercommunications of compressor arrangement 2 cooling one in compressor arrangement 2 the high temperature air of compressor arrangement 2 output to the low temperature air after will cooling is impressed another in compressor arrangement 2, make the high temperature high-pressure air after the pressurization finishes at every turn can obtain timely cooling, avoid the air too high temperature after compressing many times, the influence is used.

Wherein the compression ratio of the compression device 2 does not exceed 3.0. By adopting the structure, the pressure of the gas output from the tail end can reach 380 kilograms, the temperature of the gas can be controlled between 130 and 160 degrees, and the performance is excellent.

Further, as a preferred embodiment of the present invention, but not limited thereto, the first cooling device 3 includes an air-cooling main body 31 and a cooling fan 32 connected to the air-cooling main body 31, the air-cooling main body 31 is used for reducing the temperature of the high-temperature and high-pressure air output from the compression device 2, and the cooling fan 32 is used for dissipating heat of the air-cooling main body 31. The air-cooled main body 31 is an existing combined air cooler, and the cooling fan 32 is an existing air cooler. The structure can realize the cooling of the high-temperature and high-pressure air output by the compression device 2, and has simple structure and convenient implementation. Preferably, the number of the cooling fans 32 is plural, and the arrangement of the plural cooling fans 32 can accelerate the heat dissipation of the air-cooled main body 31.

Further, as a preferred embodiment of the present invention, but not limiting, the compression device 2 is provided with a second cooling device 5 for reducing the temperature thereof. In particular, the second cooling device 5 comprises a casing (not shown) connected to the compression device 2 and a cooling fluid (not shown) arranged inside the casing and in heat exchange relationship with the compression device 2, the cooling fluid being able to circulate inside the casing. This structure can further reduce the temperature of the compressed air in the compression device 2.

Further, as a preferred embodiment of the present invention, but not limited thereto, an air inlet valve group 8 and an air outlet valve group 9 are disposed on the compression device 2, a second power device (not shown) is connected to the air inlet valve group 8, and a third power device (not shown) is connected to the air outlet valve group 9. An air inlet 6 is formed on the air inlet valve group 8, and the second power device is used for controlling the air inlet valve group 8 to open or close the air inlet 6; an air outlet 7 is formed in the air outlet valve group 9, and the third power device is used for controlling the air outlet valve group 9 to open or close the air outlet 7. Through two mutually independent second power device with the third power device controls respectively inlet valve group 8 with outlet valve group 9, improve the convenience of operation, and the result of use is better.

Further, as a preferred embodiment of the present invention, but not limited thereto, the compression device 2 is provided with a blow-by protection device 10 for preventing compressed air from entering the crankshaft driving device 1. Wherein, the two-stage compressor 22, the three-stage compressor 23 and the four-stage compressor 24 are all provided with the gas leakage protection device 10. This arrangement prevents high-pressure air from entering the crankshaft drive 1 and causing damage to the crankshaft drive 1.

Further, as a preferred embodiment of the present invention, but not limited thereto, the compression device 2 at least comprises a compression cylinder 201 and a first piston block 202 capable of moving along the compression cylinder 201 and abutting against the inner wall of the compression cylinder 201, the compression cylinder 201 is formed with the compression chamber 100 for moving the first piston block 202 therein, and the air leakage protection device 10 comprises an air leakage protection chamber 102 communicating with the compression chamber 100 on the side close to the crankshaft driving device 1 and an air discharge through hole 101 communicating with the air leakage protection chamber 102. Preferably, the number of the vent through holes 101 is plural, and the vent through holes 101 are distributed at intervals on the peripheral side of the compression cylinder 201. When compressed air is discharged into the air leakage protection cavity 102 through a gap between the first piston block 202 and the inner wall of the compression cylinder 201, the compressed air is discharged out of the equipment through the exhaust through hole 101, high-pressure air is prevented from entering the crankshaft driving device 1 to cause damage, the compressed air is discharged in a through hole mode, and the crankshaft driving device is simple in structure and convenient to implement.

Further, as a preferred embodiment of the present invention, but not limited thereto, a sealing chamber (not shown) is communicated with a side of the blow-by gas protection chamber 102 close to the crankshaft driving device 1, a piston connecting rod 204 forming a gap with an inner wall of the blow-by gas protection chamber 102 is connected to the first piston block 202, and a second piston block 203 moving along the sealing chamber is connected to an end of the piston connecting rod 204 far from the compression cylinder 201. The structure realizes the isolation of the crankshaft driving device 1 and the air leakage protection cavity 102, avoids high-pressure gas from entering the crankshaft driving device 1, and has better sealing effect.

Further, as a preferred embodiment of the present invention, but not limited thereto, the crankshaft driving apparatus 1 includes a crankcase 107, an eccentric crankshaft 104 disposed in the crankcase 107, a multi-pin connecting rod 103 disposed on the eccentric crankshaft 104, and a driving motor 108 for driving the eccentric crankshaft 104 to rotate, wherein one end of the connecting rod 103 is hinged to the second piston block 203. The eccentric crankshaft 104 rotates to enable the plurality of connecting rods 103 to sequentially slide along the corresponding compression cylinder 201 one by one to push the corresponding piston rods 202 to slide to compress air, so that the plurality of compression devices 2 are sequentially started one by one. Simple structure and convenient implementation.

Further, as a preferred embodiment of the present invention, the present invention is not limited thereto, and the present invention further includes a gas-liquid separation device 4 which is respectively communicated with the first cooling device 3 and the compression device 2, wherein the gas-liquid separation device 4 is configured to separate moisture from the cooling air sent from the first cooling device 3 to the compression device 2. The gas-liquid separation device 4 is an existing oil-gas separator, drying of cooling air is achieved, and damage to the compression device 2 caused by the fact that air with moisture enters the compression device 2 is avoided.

Further, as a preferred embodiment of the present invention, but not limited thereto, a lubricating device 11 for supplying lubricating oil to the whole machine is further included. Wherein the lubricating device 11 includes a lubricating oil pump (not shown) connected to the compression cylinder 201 through a lubricating oil pipe (not shown), and an oil filler (not shown). The lubricating device 11 drips 5 to 6 drops of lubricating oil per minute into the compression cylinder 201. This arrangement acts to lubricate the inner wall of the compression cylinder 201, reduce the friction between the first piston block 202 and the compression cylinder 201, reduce the wear of the equipment, and increase the service life of the equipment.

It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present application. Furthermore, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing is illustrative of one or more embodiments provided in connection with the detailed description and is not intended to limit the disclosure to the particular forms disclosed. Similar or identical methods, structures, etc. as used herein, or several technical inferences or substitutions made on the concept of the present application should be considered as the scope of the present application.

Claims

1. Multistage charge air compressor, its characterized in that, including a plurality of compressor arrangement (2) that communicate in proper order, it is a plurality of compressor arrangement (2) start in proper order and compress the air step by step, it is a plurality of other first cooling device (3) that are equipped with respectively rather than the intercommunication of compressor arrangement (2) are a plurality of compressor arrangement (2) are including one-level compressor (21), secondary compressor (22), tertiary compressor (23) and level four compressor (24) that establish ties in proper order, one-level compressor (21) with secondary compressor (22) symmetry sets up, tertiary compressor (23) with level four compressor (24) symmetry sets up.

2. The multistage charge air compressor according to claim 1, wherein the first cooling device (3) comprises an air-cooled body (31) and a cooling fan (32) connected to the air-cooled body (31).

3. Multistage charge air compressor according to claim 1, characterised in that the compression means (2) are provided with second cooling means (5) for reducing the temperature thereof.

4. The multistage booster air compressor according to claim 1, wherein an inlet valve group (8) and an outlet valve group (9) are arranged on the compression device (2), a second power device is connected to the inlet valve group (8), and a third power device is connected to the outlet valve group (9).

5. The multistage charge air compressor according to claim 1, further comprising a crankshaft drive (1) for sequentially activating the plurality of compression devices (2) one by one, wherein the compression devices (2) are provided with a leakage protection device (10) for preventing compressed air from entering the crankshaft drive (1).

6. The multistage charge air compressor according to claim 5, wherein the compression device (2) comprises at least a compression cylinder (201) and a first piston block (202) capable of moving compressed air along the compression cylinder (201), a compression chamber (100) for moving the first piston block (202) is formed in the compression cylinder (201), and the blow-by gas protection device (10) comprises a blow-by gas protection chamber (102) communicated on one side of the compression chamber (100) close to the crankshaft driving device (1) and a vent hole (101) communicated with the blow-by gas protection chamber (102).

7. The multistage charge air compressor according to claim 6, wherein a sealing cavity is communicated with one side of the leakage air protection cavity (102) close to the crankshaft driving device (1), a piston connecting rod (204) forming a gap with the inner wall of the leakage air protection cavity (102) is connected to the first piston block (202), and a second piston block (203) moving along the sealing cavity is connected to one end, far away from the first piston block (202), of the piston connecting rod (204).

8. The multistage charge air compressor according to claim 6, wherein the crankshaft drive (1) comprises a rotatable eccentric crankshaft (104) and a multi-follower connecting rod (103) connected to the eccentric crankshaft (104), one end of the connecting rod (103) being inserted into the compression cylinder (201) and driving the first piston block (202) to slide along the compression cylinder (201) when the eccentric crankshaft (104) rotates.

9. The multistage charge air compressor according to claim 1, further comprising a gas-liquid separation device (4) communicating with the first cooling device (3) and the compression device (2), respectively, the gas-liquid separation device (4) being adapted to separate moisture from the cooling air delivered by the first cooling device (3) towards the compression device (2), and a lubrication device (11) providing lubrication oil to the complete machine.