CN206860441U - A kind of two-stage helical-lobe compressor and oil return apparatus with oil return apparatus - Google Patents
A kind of two-stage helical-lobe compressor and oil return apparatus with oil return apparatus Download PDFInfo
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- CN206860441U CN206860441U CN201720203082.9U CN201720203082U CN206860441U CN 206860441 U CN206860441 U CN 206860441U CN 201720203082 U CN201720203082 U CN 201720203082U CN 206860441 U CN206860441 U CN 206860441U
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Abstract
The utility model discloses a kind of two-stage helical-lobe compressor with oil return apparatus, including hiigh pressure stage rotor, hiigh pressure stage working rotor chamber, low-pressure stage rotor, low-pressure stage working rotor chamber, gear-box, oil return apparatus；Gear-box is provided with oil return oil-out, and low-pressure stage working rotor chamber is provided with oil return oil inlet；One end connection oil return oil-out of the oil return mechanism, other end connection oil return oil inlet, realizes that the lubricating oil for spraying into gear-box returns to low-pressure stage working rotor chamber；At least one check valve is set on connecting pipe, realizes the one-way flow of lubricating oil in gear-box to low-pressure stage working rotor chamber, while prevent the compressed air of low-pressure stage working rotor intracavitary from backflowing or being flowed back and forth in connecting pipe.The utility model can effectively realize that lubricating oil to the one-way flow of low-pressure stage working rotor chamber, prevents the compressed air of low-pressure stage working rotor intracavitary from backflowing or being flowed back and forth in connecting pipe, avoids energy loss, improve compressor efficiency in gear-box.
Description
Technical field
The utility model belongs to Compressor Technology field, is related to a kind of helical-lobe compressor, more particularly to a kind of band oil return fills
The two-stage helical-lobe compressor put；Meanwhile the utility model further relates to a kind of oil return apparatus.
Background technology
Two-stage helical-lobe compressor generally sets gear-box, drives two driven gears by a driving gear, drives simultaneously
Dynamic low-pressure stage and hiigh pressure stage two-stage compressor.During compressor operation, spray into lubricating oil to gear-box and ensure gear-box
Normal operation.In existing two-stage design of twin screw compressor, the lubricating oil for spraying into gear-box returns to compressor by oil returning tube
Some low-pressure area, typically return to low-pressure stage working rotor chamber.Due to the position tool of oil returning tube connection low-pressure stage working rotor chamber
There is certain pressure, compressed air can backflow or be flowed back and forth in connecting pipe, cause gas flow loss；Gas backflow simultaneously
Or flow the normal oil return that can also influence gear-box back and forth in connecting pipe.
In view of this, nowadays there is an urgent need to design a kind of new two-stage helical-lobe compressor, to overcome existing two-stage screw rod
Drawbacks described above existing for compressor.
Utility model content
Technical problem to be solved in the utility model is：A kind of two-stage helical-lobe compressor with oil return apparatus is provided, can
The unidirectional oil return of gear box lubricating oil is effectively realized, prevents compressed air from backflowing or being flowed back and forth in connecting pipe, avoids energy
Loss, improve compressor efficiency.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：
A kind of two-stage helical-lobe compressor with oil return apparatus, the two-stage helical-lobe compressor include：Hiigh pressure stage rotor, high pressure
Level working rotor chamber, low-pressure stage rotor, low-pressure stage working rotor chamber, gear-box, oil return apparatus；
Be provided with driving gear, two driven gears in the gear-box, two driven gears connect respectively hiigh pressure stage rotor,
The respective rotor of low-pressure stage rotor, gear-box are provided with oil return oil-out, and low-pressure stage working rotor chamber has oil return oil inlet；
The oil return oil-out of one end tooth connection roller box of the oil return apparatus, other end connection low-pressure stage working rotor chamber
Oil return oil inlet；
The oil return oil inlet is arranged on low-pressure stage working rotor chamber, realizes that the lubricating oil for spraying into gear-box returns to low-pressure stage
Working rotor chamber；
At least one check valve is set on the connecting pipe of connection oil return oil-out and oil return oil inlet, realizes lubricating oil
One-way flow and prevent compressed air from backflowing or being flowed back and forth in connecting pipe, avoid energy loss；Time of gear-box simultaneously
Oily oil inlet is arranged on low-pressure stage working rotor chamber, and connection is a region with certain pressure, and check valve can prevent from pressing
Contracting air backflows or flowed back and forth in connecting pipe.
As a kind of preferred scheme of the present utility model, on the connecting pipe of connection oil return oil-out and oil return oil inlet
One check valve is set, and check valve is arranged at the centre position of connecting pipe.
As a kind of preferred scheme of the present utility model, the connecting pipe includes horizontal pipeline, vertical duct, check valve
It is arranged on connecting line.
A kind of oil return apparatus of two-stage helical-lobe compressor, it is described including connecting pipe, at least one check valve；The connection
Pipeline includes horizontal pipeline, vertical duct；The oil return oil-out of connecting pipe one end tooth connection roller box, other end connection are low
Arbitrarily downgrade the oil return oil inlet of working rotor chamber；
The beneficial effects of the utility model are：The utility model proposes the two-stage helical-lobe compressor with oil return apparatus and
Oil return apparatus, it can effectively realize that lubricating oil to the one-way flow of low-pressure stage working rotor chamber, prevents low-pressure stage in gear-box
The compressed air of working rotor intracavitary is backflowed or flowed back and forth in connecting pipe, avoids energy loss, improves compressor efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model two-stage helical-lobe compressor.
Embodiment
Describe preferred embodiment of the present utility model in detail below in conjunction with the accompanying drawings.
Embodiment one
Referring to Fig. 1, the utility model discloses a kind of two-stage helical-lobe compressor, the two-stage helical-lobe compressor includes：
Hiigh pressure stage rotor, hiigh pressure stage working rotor chamber, low-pressure stage rotor, low-pressure stage working rotor chamber, gear-box, oil return apparatus.
Be provided with driving gear, two driven gears in the gear-box, two driven gears connect respectively hiigh pressure stage rotor,
The respective rotor of low-pressure stage rotor, gear-box is provided with oil return oil-out 2, low-pressure stage working rotor chamber is provided with oil return oil inlet 1.Institute
The oil return oil-out 2 of one end tooth connection roller box of oil return apparatus is stated, the other end connects the oil return oil-feed of low-pressure stage working rotor chamber
Mouth 1.
The oil return oil inlet 1 is arranged on low-pressure stage working rotor chamber, realizes that the lubricating oil for spraying into gear-box returns to low pressure
Level working rotor chamber；At least one check valve 3 is set on the connecting pipe of connection oil return oil-out 2 and oil return oil inlet 1, it is real
The one-way flow of existing lubricating oil；The oil return oil inlet 1 of gear-box is arranged on low-pressure stage working rotor chamber simultaneously, and connection is one
Pressure oscillation region, check valve can prevent compressed air from being flowed back and forth in connecting pipe.
In the present embodiment, a check valve is set on the connecting pipe of connection oil return oil-out and oil return oil inlet, it is single
The centre position of connecting pipe is arranged to valve.In addition, the connecting pipe includes horizontal pipeline, vertical duct, check valve can
To be arranged in horizontal pipeline and (vertical duct can certainly be arranged at).
Embodiment two
A kind of oil return apparatus of two-stage helical-lobe compressor, including gear-box, oil return mechanism；The two-stage helical-lobe compressor bag
Include：Hiigh pressure stage rotor, hiigh pressure stage working rotor chamber, low-pressure stage rotor, low-pressure stage working rotor chamber；
Be provided with driving gear, two driven gears in the gear-box, two driven gears connect respectively hiigh pressure stage rotor,
The respective rotor of low-pressure stage rotor, gear-box are provided with oil return oil-out, and low-pressure stage working rotor chamber is provided with oil return oil inlet；
The oil return oil-out of one end tooth connection roller box of the oil return apparatus, other end connection low-pressure stage working rotor chamber
Oil return oil inlet；
The oil return oil inlet is arranged on low-pressure stage working rotor chamber, realizes that the lubricating oil for spraying into gear-box returns to low-pressure stage
Working rotor chamber；
At least one check valve is set on the connecting pipe of connection oil return oil-out and oil return oil inlet, realizes lubricating oil
One-way flow and prevent the compressed air of low-pressure stage working rotor chamber from flowing build-up of pressure loss back and forth in connecting pipe；Simultaneously
The oil return oil inlet of gear-box is arranged on low-pressure stage working rotor chamber, and connection is a pressure oscillation region, and check valve can be prevented
Only compressed air flows back and forth in connecting pipe.
In summary, the utility model proposes two-stage helical-lobe compressor, can effectively realize lubricating oil in gear-box
To the one-way flow of low-pressure stage working rotor chamber, prevent the compressed air of low-pressure stage working rotor intracavitary from backflowing or in connecting pipe
Flow back and forth, avoid energy loss, improve compressor efficiency.
Here description and application of the present utility model are illustrative, are not wishing to the scope of the utility model being limited in
State in embodiment.The deformation and change of embodiments disclosed herein are possible, for the ordinary skill people of those this areas
The replacement of embodiment and equivalent various parts are known for member.It should be appreciated by the person skilled in the art that do not taking off
In the case of spirit or essential characteristics of the present utility model, the utility model can in other forms, structure, arrangement, ratio,
And realized with other components, material and part., can be to this in the case where not departing from the scope of the utility model and spirit
In disclosed embodiment carry out other deformations and change.
Claims (2)
1. a kind of two-stage helical-lobe compressor with oil return apparatus, it is characterised in that the two-stage helical-lobe compressor includes：Hiigh pressure stage
Rotor, hiigh pressure stage working rotor chamber, low-pressure stage rotor, low-pressure stage working rotor chamber, gear-box, oil return apparatus；
Driving gear, two driven gears are provided with the gear-box, two driven gears connect hiigh pressure stage rotor, low pressure respectively
The respective rotor of level rotor, gear-box are provided with oil return oil-out, and low-pressure stage working rotor chamber is provided with oil return oil inlet；
The oil return oil-out of one end tooth connection roller box of the oil return apparatus, the other end connect the oil return of low-pressure stage working rotor chamber
Oil inlet, realize that the lubricating oil for spraying into gear-box returns to low-pressure stage working rotor chamber；
At least one check valve is set on the connecting pipe of connection oil return oil-out and oil return oil inlet, realizes the list of lubricating oil
To flowing；Oil return oil inlet is arranged on low-pressure stage working rotor chamber simultaneously, and connection is a region with certain pressure, single
Energy loss caused by preventing compressed air from flowing back by connecting pipe or being flowed back and forth in connecting pipe to valve.
2. a kind of oil return apparatus of two-stage helical-lobe compressor, it is characterised in that including connecting pipe, at least one check valve；
The connecting pipe includes horizontal pipeline, vertical duct；The oil return oil-out of connecting pipe one end tooth connection roller box,
The other end connects the oil return oil inlet of low-pressure stage working rotor chamber；
The check valve is arranged on connecting pipe, realizes in gear-box lubricating oil to the unidirectional stream of low-pressure stage working rotor chamber
It is dynamic, while prevent the compressed air of low-pressure stage working rotor intracavitary from backflowing or being flowed back and forth in connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720203082.9U CN206860441U (en) | 2017-03-03 | 2017-03-03 | A kind of two-stage helical-lobe compressor and oil return apparatus with oil return apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720203082.9U CN206860441U (en) | 2017-03-03 | 2017-03-03 | A kind of two-stage helical-lobe compressor and oil return apparatus with oil return apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206860441U true CN206860441U (en) | 2018-01-09 |
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ID=60814569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720203082.9U Active CN206860441U (en) | 2017-03-03 | 2017-03-03 | A kind of two-stage helical-lobe compressor and oil return apparatus with oil return apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206860441U (en) |
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2017
- 2017-03-03 CN CN201720203082.9U patent/CN206860441U/en active Active
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