CN220168154U - Dry vacuum pump - Google Patents
Dry vacuum pump Download PDFInfo
- Publication number
- CN220168154U CN220168154U CN202321111877.9U CN202321111877U CN220168154U CN 220168154 U CN220168154 U CN 220168154U CN 202321111877 U CN202321111877 U CN 202321111877U CN 220168154 U CN220168154 U CN 220168154U
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- frame
- vacuum pump
- screw
- along
- dry vacuum
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- 230000030279 gene silencing Effects 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 238000005260 corrosion Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000009833 condensation Methods 0.000 abstract description 4
- 230000005494 condensation Effects 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model provides a dry vacuum pump, comprising: the device comprises a power distribution cabinet, a screw main machine, an airtight device, a frame, a gas ballast device and a silencing system; the silencing system is arranged outside one end of the frame along the length direction of the frame, and the air inlet end of the silencing system is communicated with the air outlet end of the compression cavity of the screw host; the screw host is arranged on the frame and extends along the length direction of the frame, and the power distribution cabinet is arranged on the outer side of the screw host along the width direction of the frame; the screw host is internally provided with a variable pitch rotor. The dry vacuum pump has stable performance, low failure rate, short gas channel, quick gas discharge, reduced gas condensation, large working cavity and large extraction amount.
Description
Technical Field
The utility model relates to a main machine of an oil injection screw vacuum pump.
Background
Vacuum pumps are devices that improve, create, and maintain a vacuum in an enclosed space by various methods. The extracted air has different working conditions, and generally has severe working conditions such as gas containing small particle impurities, condensable gas, corrosive gas and the like.
The use conditions of the vacuum pump are various, the traditional vacuum system cannot meet the requirements of the semiconductor industry, the pharmaceutical industry, the chemical industry and the like on clean oil-free, corrosion-resistant and high vacuum degree, the market has urgent requirements on the dry vacuum pump, but the advanced technology is always controlled by abroad, and the dry vacuum pump in China is still in a starting stage.
The existing scheme I is as follows: the claw-type vacuum pump has the advantages that the gas channel of the claw-type vacuum pump is complex, gas is easy to condense in the cavity, and the anti-corrosion coating on the surface of the rotor is extremely easy to damage during assembly, so that the service life is influenced.
The existing scheme II: the oil-free vortex vacuum pump claw has small pump suction capacity, can not pump corrosive gas, and has limited application working conditions.
Disclosure of Invention
The utility model aims to solve the main technical problems of providing a dry vacuum pump which has stable performance, low failure rate, short gas channel, capability of rapidly discharging gas out of a machine, capability of reducing condensation of the gas, large working cavity and large extraction quantity.
In order to solve the above technical problems, the present utility model provides a dry vacuum pump, comprising: the device comprises a power distribution cabinet, a screw main machine, an airtight device, a frame, a gas ballast device and a silencing system;
the silencing system is arranged outside one end of the frame along the length direction of the frame, and the air inlet end of the silencing system is communicated with the air outlet end of the compression cavity of the screw host; the screw host is arranged on the frame and extends along the length direction of the frame, and the power distribution cabinet is arranged on the outer side of the screw host along the width direction of the frame;
the screw host is internally provided with a variable pitch rotor.
In a preferred embodiment: and an anti-corrosion coating is sprayed on the outer side of the variable pitch rotor.
In a preferred embodiment: the air suction end and the air outlet end of the screw main machine are respectively arranged at two sides of the screw main machine along the width direction and are spaced at a certain distance along the length direction.
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
the utility model provides a dry vacuum pump, wherein a variable pitch rotor can be sprayed with an anti-corrosion coating, so that the service life is greatly prolonged, the performance is stable, the failure rate is low, a gas channel is short, gas can be rapidly discharged out of a machine, the condensation of the gas is reduced, a working cavity is large, and the extraction quantity is large; the rotor of the screw host machine is a variable pitch rotor, the rotor is contactless, the exhaust temperature is relatively low, the layout is compact, the occupied area is small, the noise is low, and the machine basically does not need maintenance.
Drawings
FIG. 1 is a perspective view of a dry vacuum pump in accordance with a preferred embodiment of the present utility model;
FIG. 2 is an exhaust schematic diagram of a dry vacuum pump in accordance with a preferred embodiment of the present utility model;
fig. 3 is a schematic view of a variable pitch rotor in a preferred embodiment of the utility model.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.
In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," configured to, "" engaged with, "" connected to, "and the like are to be construed broadly, and may be, for example," connected to, "wall-mounted," connected to, removably connected to, or integrally connected to, mechanically connected to, electrically connected to, directly connected to, or indirectly connected to, through an intermediary, and may be in communication with each other between two elements, as will be apparent to those of ordinary skill in the art, in view of the detailed description of the terms herein.
Referring to fig. 1 to 3, the present embodiment provides a dry vacuum pump comprising: the power distribution cabinet 1, the screw main machine 2, the air sealing device 3, the frame 4, the ballast device 5 and the silencing system 6; the air sealing device 3 is arranged on a near air inlet pipeline of the screw main machine 2, and the air ballast device 5 is arranged on the screw main machine 2.
The silencing system 6 is arranged outside one end of the frame 4 along the length direction of the frame 4, and the air inlet end of the silencing system is communicated with the air outlet end of the compression cavity of the screw host 2; the screw main machine 2 is arranged on the frame 4 and extends along the length direction of the frame 4, and the power distribution cabinet 1 is arranged outside the screw main machine 2 along the width direction of the frame 4;
the screw main machine 2 is internally provided with a variable pitch rotor, and the outer side of the variable pitch rotor is sprayed with an anti-corrosion coating. The air suction end and the air outlet end of the screw main machine 2 are respectively arranged at two sides of the screw main machine 2 along the width direction and are spaced at a certain distance along the length direction.
According to the dry vacuum pump, the variable pitch rotor can be sprayed with the anti-corrosion coating, so that the service life is greatly prolonged, the performance is stable, the failure rate is low, the gas channel is short, the gas can be rapidly discharged out of the machine, the condensation of the gas is reduced, the working cavity is large, and the extraction quantity is large; the rotor of the screw main machine 2 is a variable pitch rotor, the rotor is contactless, the exhaust temperature is relatively low, the layout is compact, the occupied area is small, the noise is low, and the machine basically does not need maintenance.
The foregoing is only a preferred embodiment of the present utility model, but the design concept of the present utility model is not limited thereto, and any person skilled in the art will be able to make insubstantial modifications of the present utility model within the scope of the present utility model disclosed herein by this concept, which falls within the actions of invading the protection scope of the present utility model.
Claims (3)
1. A dry vacuum pump, comprising: the device comprises a power distribution cabinet, a screw main machine, an airtight device, a frame, a gas ballast device and a silencing system;
the silencing system is arranged outside one end of the frame along the length direction of the frame, and the air inlet end of the silencing system is communicated with the air outlet end of the compression cavity of the screw host; the screw host is arranged on the frame and extends along the length direction of the frame, and the power distribution cabinet is arranged on the outer side of the screw host along the width direction of the frame;
the screw host is internally provided with a variable pitch rotor.
2. A dry vacuum pump as claimed in claim 1, wherein: and an anti-corrosion coating is sprayed on the outer side of the variable pitch rotor.
3. A dry vacuum pump as claimed in claim 1, wherein: the air suction end and the air outlet end of the screw main machine are respectively arranged at two sides of the screw main machine along the width direction and are spaced at a certain distance along the length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321111877.9U CN220168154U (en) | 2023-05-10 | 2023-05-10 | Dry vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321111877.9U CN220168154U (en) | 2023-05-10 | 2023-05-10 | Dry vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220168154U true CN220168154U (en) | 2023-12-12 |
Family
ID=89063157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321111877.9U Active CN220168154U (en) | 2023-05-10 | 2023-05-10 | Dry vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220168154U (en) |
-
2023
- 2023-05-10 CN CN202321111877.9U patent/CN220168154U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |