CN102996450A

CN102996450A - Semi-enclosed double-screw compressor

Info

Publication number: CN102996450A
Application number: CN2011102662099A
Authority: CN
Inventors: 连季红; 谢鹏
Original assignee: SHANGHAI HANBELL PRECISE MACHINERY CO Ltd
Current assignee: SHANGHAI HANBELL PRECISE MACHINERY CO Ltd
Priority date: 2011-09-08
Filing date: 2011-09-08
Publication date: 2013-03-27

Abstract

The invention discloses a semi-enclosed double-screw compressor, which comprises a driving component, a first primary female rotor, a first primary male rotor, a first secondary female rotor, a first secondary male rotor, a first coupler, a second primary male rotor, a second primary female rotor, a second secondary male rotor, a second secondary female rotor, a second coupler and other components; the driving component is connected with the first primary male rotor; the first primary female rotor and the first primary male rotor are mounted in a matched manner; the first primary male rotor and the first secondary male rotor are connected through a second coupler; the first secondary female rotor and the first secondary male rotor are mounted in a matched manner; the first primary male rotor is connected to the second primary male rotor through the first coupler, the second primary male rotor and the second primary female rotor are mounted in a matched manner; the second primary male rotor and the second secondary male rotor are connected through a third coupler; and the second secondary male rotor and the second secondary female rotor are mounted in a matched manner. The semi-enclosed double-screw compressor has the advantages of being capable of reducing the installation space and saving the equipment cost.

Description

Semi-closed type double-screw compressor

Technical field

The present invention relates to a kind of compressor, particularly a kind of semi-closed type double-screw compressor.

Background technique

Along with the development in compressor application field, the compressor of the different working medium of compression such as air compressor, refrigeration compressor, technique compressor of having derived wherein can be divided into the different application modes such as parallel connection compressor, multistage compressor again.As a rule, different compressed working medium and application mode all need to adopt the use of arranging in pairs or groups of two or more compressors, and cost is higher.

Summary of the invention

Technical problem to be solved by this invention provides a kind of semi-closed type double-screw compressor, and it can reduce installing space and save equipment cost.

For solveing the technical problem, the invention provides a kind of semi-closed type double-screw compressor, it is characterized in that, it comprises driving element, the first one-level mother rotor, the first one-level male rotor, the first secondary mother rotor, the first secondary male rotor, the first coupling, the second one-level male rotor, the second one-level mother rotor, the second secondary male rotor, the second secondary mother rotor, the second coupling, the 3rd coupling, driving element is installed on the first one-level male rotor, the first one-level mother rotor and the collocation of the first one-level male rotor are installed, the first one-level male rotor is connected by the second coupling with the first secondary male rotor, the first secondary mother rotor and the collocation of the first secondary male rotor are installed, the first one-level male rotor is connected by the first coupling with the second one-level male rotor, the second one-level male rotor and the collocation of the second one-level mother rotor are installed, the second one-level male rotor is connected by the 3rd coupling with the second secondary male rotor, the profile of tooth Hand of spiral of the first one-level male rotor is installed in the second secondary male rotor and the collocation of the second secondary mother rotor, the profile of tooth Hand of spiral of the profile of tooth Hand of spiral of the first secondary male rotor and the second one-level male rotor, the profile of tooth Hand of spiral of the second secondary male rotor is opposite.

Preferably, described the first one-level mother rotor, the first one-level male rotor, the first secondary mother rotor, the first secondary male rotor form the first group rotor, and the second one-level male rotor, the second one-level mother rotor, the second secondary male rotor, the second secondary mother rotor form the second group rotor.

Positive progressive effect of the present invention is: the present invention can reduce installing space and save equipment cost.

Description of drawings

Fig. 1 is the structural representation of left-handed rotor.

Fig. 2 is the structural representation of dextrorotation rotor.

Fig. 3 is the structural representation of semi-closed type double-screw compressor of the present invention.

Fig. 4 is the structural representation that the present invention realizes multiple exhaust pressure.

Embodiment

The below lifts a preferred embodiment, and comes by reference to the accompanying drawings the clearer the present invention that intactly illustrates.

As shown in Figure 1, from axial direction, helical tooth 20 is left-handed rotor toward the upper left side to extension by the bottom right; Otherwise as shown in Figure 2, helical tooth 20 is dextrorotation rotor toward the upper right to extension by the lower-left.

As shown in Figure 3, semi-closed type double-screw compressor of the present invention comprises driving element 1, the first one-level mother rotor 2, the first one-level male rotor 3, the first secondary mother rotor 4, the first secondary male rotor 5, the first coupling 6, the second one-level male rotor 7, the second one-level mother rotor 8, the second secondary male rotor 9, the second secondary mother rotor 10, the second coupling 11, the 3rd coupling 12, driving element 1 is installed on the first one-level male rotor 3, the first one-level mother rotor 2 and 3 collocation of the first one-level male rotor are installed, the first one-level male rotor 3 is connected by the second coupling 11 with the first secondary male rotor 5, the first secondary mother rotor 4 and 5 collocation of the first secondary male rotor are installed, the first one-level male rotor 3 is connected by the first coupling 6 with the second one-level male rotor 7, the second one-level male rotor 7 and 8 collocation of the second one-level mother rotor are installed, the second one-level male rotor 7 is connected by the 3rd coupling 12 with the second secondary male rotor 9, and the second secondary male rotor 9 and 10 collocation of the second secondary mother rotor are installed.Because it is inner that all parts all are mounted in the same structure body, so be defined as type semienclosed structure.The first one-level mother rotor 2, the first secondary mother rotor 4, the second one-level male rotor 7, the second secondary male rotor 9 are left-handed rotors, the first one-level male rotor 3, the first secondary male rotor 5, the second one-level mother rotor 8, the second secondary mother rotor 10 are dextrorotation rotors, and the profile of tooth Hand of spiral of the profile of tooth Hand of spiral of the first one-level male rotor 3, the first secondary male rotor 5 is opposite with the profile of tooth Hand of spiral of the profile of tooth Hand of spiral of the second one-level male rotor 7, the second secondary male rotor 9.The first one-level mother rotor 2, the first one-level male rotor 3, the first secondary mother rotor 4, the first secondary male rotor 5 form the first group rotor, and the second one-level male rotor 7, the second one-level mother rotor 8, the second secondary male rotor 9, the second secondary mother rotor 10 form the second group rotor.Driving element 1 can be the elements such as motor or engine.

The working principle of semi-closed type double-screw compressor of the present invention is as follows: compressed gas is inhaled into by the driving element place, is compressed by two group rotors respectively, then discharges compressor.This compressor can be realized following several application model: one, as shown in Figure 3, the present invention realizes compression in parallel, the first group rotor compressed refrigerant, the second group rotor compressed refrigerant, exhaust is received in the same pipe-line system, gets final product the function that a compressor is realized the parallel connection type compressor; Two, as shown in Figure 4, the present invention obtains multiple exhaust pressure simultaneously.Two pairs of rotors of the first group rotor are pressurized air simultaneously, can obtain higher exhaust pressure, and the second group rotor is only installed primary rotor, can obtain lower exhaust pressure, thereby realize the function of a tractor serves several purposes, can reduce installing space and save equipment cost.

Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present invention and essence, can make various changes or modifications to these mode of executions.Therefore, protection scope of the present invention is limited by appended claims.

Claims

1. semi-closed type double-screw compressor, it is characterized in that, it comprises driving element, the first one-level mother rotor, the first one-level male rotor, the first secondary mother rotor, the first secondary male rotor, the first coupling, the second one-level male rotor, the second one-level mother rotor, the second secondary male rotor, the second secondary mother rotor, the second coupling, the 3rd coupling, driving element is installed on the first one-level male rotor, the first one-level mother rotor and the collocation of the first one-level male rotor are installed, the first one-level male rotor is connected by the second coupling with the first secondary male rotor, the first secondary mother rotor and the collocation of the first secondary male rotor are installed, the first one-level male rotor is connected by the first coupling with the second one-level male rotor, the second one-level male rotor and the collocation of the second one-level mother rotor are installed, the second one-level male rotor is connected by the 3rd coupling with the second secondary male rotor, the profile of tooth Hand of spiral of the first one-level male rotor is installed in the second secondary male rotor and the collocation of the second secondary mother rotor, the profile of tooth Hand of spiral of the profile of tooth Hand of spiral of the first secondary male rotor and the second one-level male rotor, the profile of tooth Hand of spiral of the second secondary male rotor is opposite.

2. semi-closed type double-screw compressor as claimed in claim 1, it is characterized in that, described the first one-level mother rotor, the first one-level male rotor, the first secondary mother rotor, the first secondary male rotor form the first group rotor, and the second one-level male rotor, the second one-level mother rotor, the second secondary male rotor, the second secondary mother rotor form the second group rotor.