CN217539008U - Permanent magnet screw compressor with rear-mounted frequency converter - Google Patents
Permanent magnet screw compressor with rear-mounted frequency converter Download PDFInfo
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- CN217539008U CN217539008U CN202221778122.XU CN202221778122U CN217539008U CN 217539008 U CN217539008 U CN 217539008U CN 202221778122 U CN202221778122 U CN 202221778122U CN 217539008 U CN217539008 U CN 217539008U
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Abstract
The utility model relates to a compressor unit technical field, specifically speaking relates to a rearmounted permanent magnet screw compressor of converter. The air compressor comprises a shell, and an oil-gas barrel, a screw compression host, a permanent magnet motor, a cooler and a frequency converter which are assembled in the shell, wherein a fan is installed at the tail part of the permanent magnet motor, a fan cover is installed outside the fan, and air inlet holes are uniformly distributed at the tail end of the fan cover; the frequency converter is fixedly assembled on the rear side of the fan cover, and a distance is reserved between the frequency converter and the fan cover. The utility model discloses assemble the converter in the fan guard rear side of permanent-magnet machine afterbody to there is the interval with the fan guard, like this, when permanent-magnet machine moves, the fan inhales permanent-magnet machine to hou mian air high speed, neither influences permanent-magnet machine's performance and has improved the radiating effect of converter again, has strengthened the stability of converter operation, has improved the operating efficiency of converter, has reduced the fault rate, can not only guarantee user's normal production, can reduce the burden after sale of compressor producer again.
Description
Technical Field
The utility model relates to a compressor equipment technical field, specifically speaking relates to a rearmounted permanent magnet screw compressor of converter.
Background
The compressor is a driven fluid machine for lifting low-pressure gas into high pressure, and mainly comprises the following machine types: single screw compressors, two-stage screw compressors, sliding vane compressors, blower compressors, scroll compressors, and the like.
At present, in order to save energy and reduce emission and reduce energy consumption of a screw compressor, a plurality of screw compressor manufacturers change a traditional screw compressor into a permanent magnet frequency conversion screw compressor, and in order to ensure normal use of a user, a frequency converter needs to be configured for the permanent magnet screw compressor, so that the exhaust capacity of the permanent magnet frequency conversion screw compressor is automatically controlled, and the purposes of saving energy and reducing emission are achieved.
However, the existing permanent magnet frequency conversion screw compressor has the structural defects that the position of the frequency converter is close to the oil-gas barrel, the temperature of the oil-gas barrel is about 80 ℃ when the compressor operates, the temperature of the high-pressure machine is about 85 ℃, and in addition, the heat of the frequency converter easily causes high-temperature shutdown faults, so that the service life of the frequency converter is influenced, the normal production of users is influenced, and the after-sale maintenance cost of compressor manufacturers is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a rearmounted permanent magnetism screw compressor of converter to solve above-mentioned technical problem.
In order to achieve the above object, the utility model adopts the following technical scheme:
a permanent magnet screw compressor with a rear-mounted frequency converter comprises a casing with a box body structure, and an oil-gas barrel, a screw compression host, a permanent magnet motor, a cooler and a frequency converter which are assembled in the casing, wherein the permanent magnet motor and the screw compression host are assembled in the middle of a bottom plate of the casing; the cooler is fixedly assembled at the top of the shell; the tail of the permanent magnet motor is provided with a fan, the fan is externally provided with a fan cover, and air inlets are uniformly distributed at the tail end of the fan cover; the frequency converter is fixedly assembled on the rear side of the fan cover, and a distance exists between the frequency converter and the fan cover.
Preferably, a filter assembly is fixedly mounted on the upper portion of the side wall of the casing.
Preferably, the bottom of the permanent magnet motor and the bottom of the screw compression main machine are both provided with a shock absorber.
Preferably, the bottom of the machine shell is provided with two rectangular forklift holes.
Has the advantages that: compared with the prior art, the utility model discloses assemble the converter in the fan guard rear side of permanent-magnet machine afterbody to there is the interval with the fan guard, like this, permanent-magnet machine moves, the fan inhales permanent-magnet machine to hou mian air high speed, neither influence permanent-magnet machine's performance has improved the radiating effect of converter again, the stability of converter operation has been strengthened, the operating efficiency of converter has been improved, the fault rate has been reduced, can not only guarantee user's normal production, can reduce the burden after sale of compressor producer again.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
The embodiment is as follows:
referring to fig. 1, the permanent magnet screw compressor with the rear-mounted frequency converter in the embodiment includes a casing 1 with a box structure, and an oil-gas barrel 5, a screw compression main unit 6, a permanent magnet motor 7 for driving the screw compression main unit 6 to work, a cooler 4, an air filter assembly 3, and a frequency converter 2 which are assembled in the casing 1. The bottom of casing 1 is provided with the fork truck hole 11 of two rectangles, facilitates the use fork truck and loads and unloads.
The permanent magnet motor 7 and the screw compression main machine 6 are assembled in the middle of the bottom plate of the machine shell 1, the shock absorbers 8 are mounted at the bottom of the permanent magnet motor 7 and the bottom of the screw compression main machine 6, the shock absorbers 8 can reduce the vibration amplitude of the permanent magnet motor 7 and the screw compression main machine 6 during the operation of the compressor, and the service life of the compressor is prolonged.
The oil-gas barrel 5 is fixedly assembled at the front side of the screw compression main machine 6; the cooler 4 is fixedly assembled at the top of the casing 1; the air filter assembly 3 is fixedly arranged on the upper part of the side wall of the machine shell 1. A fan 9 is mounted at the tail of the permanent magnet motor 7, a fan cover 10 is mounted outside the fan 9, and air inlets are uniformly distributed at the tail end of the fan cover 10; the frequency converter 2 is fixedly assembled on the rear side of the fan cover 10, and a space is reserved between the frequency converter 2 and the fan cover 10, so that when the permanent magnet motor 7 operates, the fan sucks air behind the permanent magnet motor 7 at a high speed, the performance of the permanent magnet motor 7 is not influenced, the heat dissipation effect of the frequency converter 2 is improved, the operation stability of the frequency converter 2 is enhanced, the operation efficiency of the frequency converter 2 is improved, the fault rate is reduced, the normal production of a user can be ensured, and the after-sale burden of a compressor manufacturer can be reduced.
The foregoing shows and describes the general principles, features and technical characteristics of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be protected. The scope of the invention is defined by the claims and their equivalents.
Claims (4)
1. A permanent magnet screw compressor with a rear-mounted frequency converter comprises a machine shell (1) of a box body structure, and an oil-gas barrel (5), a screw compression host (6), a permanent magnet motor (7) for driving the screw compression host (6) to work, a cooler (4) and the frequency converter (2) which are assembled in the machine shell (1), wherein the permanent magnet motor (7) and the screw compression host (6) are assembled in the middle of a bottom plate of the machine shell (1), and the oil-gas barrel (5) is fixedly assembled on the front side of the screw compression host (6); the cooler (4) is fixedly assembled at the top of the casing (1); the method is characterized in that: a fan (9) is installed at the tail of the permanent magnet motor (7), a fan cover (10) is installed outside the fan (9), and air inlets are uniformly distributed at the tail end of the fan cover (10); the frequency converter (2) is fixedly assembled on the rear side of the fan cover (10) and is spaced from the fan cover (10).
2. The permanent magnet screw compressor with the rear frequency converter according to claim 1, characterized in that: and a filter assembly (3) is fixedly arranged on the upper part of the side wall of the machine shell (1).
3. The permanent magnet screw compressor with the rear-mounted frequency converter according to claim 1, is characterized in that: and the bottom of the permanent magnet motor (7) and the bottom of the screw compression main machine (6) are provided with vibration absorbers (8).
4. The permanent magnet screw compressor with the rear-mounted frequency converter according to claim 1, is characterized in that: the bottom of the machine shell (1) is provided with two rectangular forklift holes (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221778122.XU CN217539008U (en) | 2022-07-08 | 2022-07-08 | Permanent magnet screw compressor with rear-mounted frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221778122.XU CN217539008U (en) | 2022-07-08 | 2022-07-08 | Permanent magnet screw compressor with rear-mounted frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217539008U true CN217539008U (en) | 2022-10-04 |
Family
ID=83424029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221778122.XU Active CN217539008U (en) | 2022-07-08 | 2022-07-08 | Permanent magnet screw compressor with rear-mounted frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217539008U (en) |
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2022
- 2022-07-08 CN CN202221778122.XU patent/CN217539008U/en active Active
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