CN202250858U

CN202250858U - Semi-closed type double-screw compressor

Info

Publication number: CN202250858U
Application number: CN2011203374821U
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: 2012-05-30
Anticipated expiration: 2021-09-08

Abstract

The utility model discloses a semi-closed type double-screw compressor which comprises a driving element, a first one-stage female rotor, a first one-stage male rotor, a first two-stage female rotor, a first two-stage male rotor, a first coupler, a second one-stage male rotor, a second one-stage female rotor, a second two-stage male rotor, a second two-stage female rotor, a second coupler and the like, wherein the driving element is arranged on the first one-stage male rotor, the first one-stage female rotor and the first one-stage male rotor are arranged in a matching manner, the first one-stage male rotor and the first two-stage male rotor are connected by the second coupler, the first two-stage female rotor and the first two-stage male rotor are arranged in a matching manner, the first one-stage male rotor and the second one-stage male rotor are connected through the first coupler, the second one-stage male rotor and the second one-stage female rotor are arranged in a matching manner, the second one-stage male rotor and the second two-stage male rotor are connected through a third coupler, and the second two-stage male rotor and the second two-stage female rotor are arranged in a matching manner. By adopting the semi-closed type double-screw compressor provided by the utility model, the installation space can be reduced, and the equipment cost is saved.

Description

Semiclosed double-screw compressor

Technical field

The utility model relates to a kind of compressor, particularly a kind of semiclosed double-screw compressor.

Background technique

Along with the continuous development in compressor application field, the compressor of the different working medium of compression such as air compressor, refrigeration compressor, technology compressor of having derived wherein can be divided into different application modes such as parallelly connected compressor, multistage compressor again.As a rule, different working medium and the application modes of being compressed all need adopt the use of arranging in pairs or groups of compressor more than two or two, and cost is higher.

The model utility content

The utility model technical problem to be solved provides a kind of semiclosed double-screw compressor, and it can reduce installing space and practice thrift equipment cost.

For solveing the technical problem; The utility model provides a kind of semiclosed 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, first coupling, the second one-level male rotor, the second one-level mother rotor, the second secondary male rotor, the second secondary mother rotor, 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 through second coupling with the first secondary male rotor, and the first secondary mother rotor and the collocation of the first secondary male rotor are installed, and the first one-level male rotor is connected through 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 through the 3rd coupling with the second secondary male rotor, and the second secondary male rotor and the collocation of the second secondary mother rotor are installed, and the profile of tooth Hand of spiral of the profile of tooth Hand of spiral of the profile of tooth Hand of spiral of the first one-level male rotor, the first secondary male rotor and the profile of tooth Hand of spiral of the second one-level male rotor, the second secondary male rotor is opposite.

Preferably; The said first one-level mother rotor, the first one-level male rotor, the first secondary mother rotor, the first secondary male rotor are formed 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 are formed second group rotor.

The positive progressive effect of the utility model is: the utility model can reduce installing space and practice thrift 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 the semiclosed double-screw compressor of the utility model.

Fig. 4 realizes the structural representation of multiple exhaust pressure for the utility model.

Embodiment

Lift a preferred embodiment below, and combine accompanying drawing to come the clearer the utility model of intactly explaining.

As shown in Figure 1, see that 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 the dextrorotation rotor toward the upper right to extension down by a left side.

As shown in Figure 3; The semiclosed double-screw compressor of the utility model 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, 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, 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 through 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, and the first one-level male rotor 3 is connected through first coupling 6 with the second one-level male rotor 7, and 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 through 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 same structure, 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 profile of tooth Hand of spiral of the first one-level male rotor 3, the first secondary male rotor 5 and the profile of tooth Hand of spiral of the second one-level male rotor 7, the second secondary male rotor 9 is opposite.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 are formed 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 are formed second group rotor.Driving element 1 can be elements such as motor or engine.

The working principle of the semiclosed double-screw compressor of the utility model is following: be compressed gas and be inhaled into by the driving element place, compressed by two group rotors respectively, discharge compressor then.This compressor can be realized following several kinds of application models: one, as shown in Figure 3; The utility model is realized parallel connection compression, 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 utility model obtains multiple exhaust pressure simultaneously.Two pairs of rotors of first group rotor are pressurized air simultaneously, can obtain higher exhaust pressure, and 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 practice thrift equipment cost.

Though more than described the embodiment of the utility model; But those skilled in the art is to be understood that; These only illustrate, and under the prerequisite of principle that does not deviate from the utility model and essence, can make numerous variations or modification to these mode of executions.Therefore, the protection domain of the utility model is limited appended claims.

Claims

1. semiclosed 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, first coupling, the second one-level male rotor, the second one-level mother rotor, the second secondary male rotor, the second secondary mother rotor, 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 through second coupling with the first secondary male rotor, and the first secondary mother rotor and the collocation of the first secondary male rotor are installed, and the first one-level male rotor is connected through 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 through the 3rd coupling with the second secondary male rotor, and the second secondary male rotor and the collocation of the second secondary mother rotor are installed, and the profile of tooth Hand of spiral of the profile of tooth Hand of spiral of the profile of tooth Hand of spiral of the first one-level male rotor, the first secondary male rotor and the profile of tooth Hand of spiral of the second one-level male rotor, the second secondary male rotor is opposite.

2. semiclosed double-screw compressor as claimed in claim 1; It is characterized in that; The said first one-level mother rotor, the first one-level male rotor, the first secondary mother rotor, the first secondary male rotor are formed 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 are formed second group rotor.