CN202560559U

CN202560559U - Screw compressor

Info

Publication number: CN202560559U
Application number: CN2012201598659U
Authority: CN
Inventors: 卫耀琪
Original assignee: WUXI REFRIGERATION EQUIPMENT FACTORY CO Ltd
Current assignee: WUXI REFRIGERATION EQUIPMENT FACTORY CO Ltd
Priority date: 2012-04-16
Filing date: 2012-04-16
Publication date: 2012-11-28
Anticipated expiration: 2022-04-16

Abstract

A screw compressor comprises a shell, a motor held in the shell, a male rotor, a female rotor, and a separator. The shell is provided therein with a first and second holding cavity for holding the male rotor and the female rotor, respectively. The axial center of the male rotor and the axial center of female rotor are located at various planes. By such structure, the volume of the screw compressor can be effectively reduced, and compressor structure can be simplified. Simultaneously, compressor noise and vibration can be decreased.

Description

A kind of helical-lobe compressor

Technical field

The utility model relates to a kind of compressor, relates in particular to a kind of helical-lobe compressor.

Background technique

Compressor is absolutely necessary in refrigeration system.The compressor that is widely used at present mainly contains piston type, screw type, centrifugal etc.

In the existing technology, helical-lobe compressor all adopts the rotation of motor driving male rotor, and through the male rotor drive female rotor, screw rotor is divided into the yin, yang rotor and intermeshes, rotor outer ring and shell.When the working rotor of engagement to when rotation, volume changes between rotor, thereby realizes suction, compression and the eliminating of gas, accomplishes continuous gas compression and circulates.

Join shown in Figure 1ly, Fig. 1 is the sectional view of a kind of Spiral Lobe Refrigeration Compressor of the prior art.Helical-lobe compressor 100 of the prior art, it mainly comprises: housing 10, motor 20, male rotor 30, female rotor 40 and separator 50, also comprise the oil supply system 60 of an external lubricant oil simultaneously, and vaporizer 604, as shown in Figure 2.

Helical-lobe compressor of the prior art is the helical-lobe compressor of oil pump.Screw rod needs lubrication oil supply system 60 in the process that pivots at a high speed.The helical-lobe compressor 100 of this type is equipped with oil pump 601 and oil storage tank 602, the oil line pipe 603 supporting with it.The oil that oil pump drives in the oil storage tank cools off with lubricated helical-lobe compressor 100 through oil line pipe.Therefore, this helical-lobe compressor that oil pump arranged exists that volume is big, complex structure, and noise is bigger with vibration.

In view of this, be necessary helical-lobe compressor of the prior art is improved, to address the above problem.

The model utility content

The purpose of the utility model is to provide a kind of helical-lobe compressor, and it can reduce the volume of helical-lobe compressor effectively, simplifies compressor arrangement, reduces the noise and the vibration of compressor simultaneously.

For realizing above-mentioned model utility purpose, the utility model provides a kind of helical-lobe compressor, and it comprises:

Housing and the motor of being accommodated, male rotor, female rotor and separator by said housing; Said enclosure interior is provided with first host cavity and second host cavity; In order to accommodate said male rotor and female rotor respectively, the axle center of said male rotor and the axle center of said female rotor are positioned on the different plane.

As the further improvement of the utility model, said motor is the motor of anti-the fluorine.

As the further improvement of the utility model, said helical-lobe compressor is the oil-less pump Spiral Lobe Refrigeration Compressor.

Compared with prior art, the beneficial effect of the utility model is: through such structure, reduce the volume of helical-lobe compressor effectively, simplify compressor arrangement, reduce the noise and the vibration of compressor simultaneously.

Description of drawings

Fig. 1 is the sectional view of a kind of helical-lobe compressor in the existing technology;

Fig. 2 for among Fig. 1 the oil supply system schematic diagram of supporting lubricant oil;

Fig. 3 is for being equipped with the sectional view of male rotor and female rotor in a kind of helical-lobe compressor one embodiment of the utility model;

Fig. 4 is the sectional view of a kind of helical-lobe compressor that male rotor and female rotor are not installed shown in Fig. 3;

Fig. 5 is the front view in a kind of helical-lobe compressor one embodiment of the utility model;

Fig. 6 is for to analyse and observe the male rotor of direction and the sectional view of female rotor along A-A among Fig. 3.

Embodiment

Below in conjunction with each mode of execution shown in the drawings the utility model is elaborated; But should be noted that; These mode of executions are not the restriction to the utility model; The function that those of ordinary skills do according to these mode of executions, method, or structural equivalent transformation or substitute all belong within the protection domain of the utility model.

Please join Fig. 3 to shown in Figure 4; In this mode of execution; A kind of helical-lobe compressor 100; It comprises: housing 10 and the motor 20 of being accommodated by said housing 10, male rotor 30, female rotor 40 and separator 50, said housing 10 inside are provided with first host cavity 31 and second host cavity 41, in order to accommodate said male rotor 30 and female rotor 40 respectively.

In conjunction with Fig. 2 and shown in Figure 5; The low pressure Freon gas that comes out from vaporizer 604 gets into the inside of helical-lobe compressors 100 from the intakeport 101 of the motor of anti-fluorine the 20 ends; Through male rotor 30, female rotor 40 high-speed rotation of first host cavity 31 in the housing 10 and 41 settings of second host cavity, and compression pressure is increased rapidly.Discharge from the bearing support combination end 12 of the other end of male rotor 30, female rotor 40 at last.

In male rotor 30, female rotor 40 high-speed rotation processes, lubricant oil must be supplied with continuously, obtains lubricated fully with bearing 421, the female rotor main shaft 401 of the bearing 321, male rotor main shaft 301 and the female rotor 40 that guarantee male rotor 30.Simultaneously lubricant oil also take away because of male rotor 30, female rotor 40 extruding types to rolling a large amount of heats that produce.The freon of therefore discharging from relief opening 102 is the gas mixture that contains a large amount of lubricant oil.

It is not all right that lubricant oil gets in the pipeline comprise freon, before freon leaves helical-lobe compressor 100, must utilize separator 50 to be retained down lubricant oil.In this mode of execution; The lubricant oil that this helical-lobe compressor 100 utilizes the pressure official post oil separator 50 at male rotor 30, female rotor 40 two ends to separate after lowering the temperature returns first host cavity 31 and second host cavity 41 automatically; And lubricated again and again male rotor 30, female rotor 40 and other compressive planes (not shown), and take away heat.

In conjunction with Fig. 3 and shown in Figure 6, in this mode of execution, the axle center 301 of the main shaft 311 in this male rotor 30 is positioned on the different plane with the axle center 401 of the main shaft 411 of this female rotor 40.

In this mode of execution, this motor 20 is the motor of anti-the fluorine, and this helical-lobe compressor 100 is the oil-less pump Spiral Lobe Refrigeration Compressor.Therefore need not be this helical-lobe compressor 100 supporting corresponding oil pumps 601 and oil storage tank 602, the oil line pipe 603 supporting with it.

The listed a series of detailed description of preceding text only is specifying to the feasibility mode of execution of the utility model; They are not the protection domain in order to restriction the utility model, allly do not break away from equivalent mode of execution or the change that the utility model skill spirit done and all should be included within the protection domain of the utility model.

To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned example embodiment, and under the situation of spirit that does not deviate from the utility model or essential characteristic, can realize the utility model with other concrete form.Therefore; No matter from which point; All should regard embodiment as exemplary; And be nonrestrictive, the scope of the utility model is limited accompanying claims rather than above-mentioned explanation, therefore is intended to the implication of the equivalents that drops on claim and all changes in the scope are included in the utility model.Should any reference character in the claim be regarded as limit related claim.

In addition; Describing according to mode of execution though should be appreciated that this specification, is not that each mode of execution only comprises an independently technological scheme; This narrating mode of specification only is for clarity sake; Those skilled in the art should make specification as a whole, and the technological scheme among each embodiment also can form other mode of executions that it will be appreciated by those skilled in the art that through appropriate combination.

Claims

1. a helical-lobe compressor (100), it comprises:

Housing (10) and the motor (20) of being accommodated, male rotor (30), female rotor (40) and separator (50) by said housing (10); Said housing (10) inside is provided with first host cavity (31) and second host cavity (41); In order to accommodate said male rotor (30) and female rotor (40) respectively; It is characterized in that the axle center (301) of said male rotor (30) is positioned on the different plane with the axle center (401) of said female rotor (40).

2. helical-lobe compressor according to claim 1 (100) is characterized in that, said motor (20) is the motor of anti-the fluorine.

3. helical-lobe compressor according to claim 1 (100) is characterized in that, said helical-lobe compressor (100) is the oil-less pump Spiral Lobe Refrigeration Compressor.