CN201013596Y - Two stage liquid-ring compressor - Google Patents

Abstract

The utility model belongs to a compressor, which particularly relates to a two-stage liquid ring type compressor. The device is characterized in that a high pressure impeller and a low-pressure impeller are integrated into a whole body, which is assembled as a whole and installed onto a high-speed rotating spiral arm shaft; the compression cavity comprises an integrated impeller, a low pressure cavity pump, a high pressure cavity pump and a distributor. The clearance between the conical plane of the impeller and the outer conical plane of the distributor matches each other. The device has the advantages that the high and low pressure impellers are processed integrally, and is assembled as a whole and installed onto the cantilevered shaft that can move in axial direction. The matching clearance between the impeller and the distributor is regulated through adjusting the displacement of the shaft. The device is compact in structure, easy in installation and accurate and convenient to regulate the matching clearance c which eliminates the accumulated error of clearance of two-stage impeller. 30 percent raw material is saved during manufacture, 40 percent processing man-hour is reduced; the working efficiency of compressor is improved form 35 percent to 70 percent; the pressure at air outlet is improved form 0.6 Mpa. G to 1.2 MPa. G; savings, reduce by compressor efficiency from, the exhaust port from and the trouble-free operation is increased from 6000 hours to 10,000 hours.

Description

The two-stage liquid-piston compressor

Technical field

The utility model belongs to compressor, is specifically related to a kind of two-stage liquid-piston compressor.

Background technique

The twin-stage liquid-piston compressor of prior art, it is made of impeller tightening nut 15, hyperbaric chamber exhaust disk 16, high-pressure impeller 17, the hyperbaric chamber pump housing 18, impeller spacer 19, the air-breathing disk 20 of hyperbaric chamber, low-pressure cavity exhaust disk 21, low pressure impeller 22, the low-pressure cavity pump housing 23, the air-breathing disk 25 of low-pressure cavity and axle 26.

Compression chamber is by preceding, back suction and discharge disk, high, low pressure impeller, high, the low chamber pump housing, spacer sleeve nine parts are formed in the impeller, high, low pressure impeller adopts split production, partial installation, impeller and disk have junction plane (that is: the air-breathing disk end face of low pressure impeller end face and low-pressure cavity of four strict control gaps of need, low pressure impeller end face and low-pressure cavity exhaust disk end face, the air-breathing disk end face of high-pressure impeller end face and hyperbaric chamber, high-pressure impeller and hyperbaric chamber exhaust disk end face) thus structure loaded down with trivial details, install complicated, it is big that integrating error are adjusted in the gap, and the gap is difficult to guarantee to adjust evenly.

The model utility content

Goal of the invention of the present utility model is to improve two-stage liquid-piston compressor high and low pressure blade wheel structure, and by split production, the high and low pressure impeller of partial installation is improved to the high and low pressure impeller of integration.

The technical solution of the utility model is:

Develop a kind of two-stage liquid-piston compressor, comprise high-pressure impeller, low pressure impeller and compression chamber is characterized in that:

Described high-pressure impeller, low pressure impeller integral body is processed as one, and overall package is socketed on the rotary arm shaft of high speed rotating;

Compression chamber is made up of integral wheel, the low-pressure cavity pump housing, the hyperbaric chamber pump housing and distributor four parts.

Above-mentioned two-stage liquid-piston compressor is characterized in that described impeller inner conical surface and distributor male cone (strobilus masculinus) Spielpassung.

The utility model has the advantages that:

The whole processing of high and low pressure both stage impellers, overall package are regulated the matching gap of impeller and distributor by the displacement of adjusting axle on the cantilevered axle that can move axially adjusting.

Compact structure, easy for installation, the matching gap adjustment is accurately easy, has eliminated the integrating error that the both stage impellers gap is adjusted.

Description of drawings

Fig. 1 improves back overall structure schematic representation;

Fig. 2 is the dispensing arrangement schematic representation;

Fig. 3 is that the A of Fig. 2 is to schematic representation;

Fig. 4 is a high and low pressure blade wheel structure schematic representation;

Fig. 5 is that the B of Fig. 4 is to schematic representation;

Fig. 6 is the pump chamber structural representation;

Fig. 7 is the two-stage liquid-piston compressor structural representation of prior art.

Embodiment

Below in conjunction with drawings and Examples, the utility model is further set forth:

Consult Fig. 1, among the figure, the 1st, distributor; The 2nd, the high and low pressure impeller; The 3rd, the hyperbaric chamber pump housing; The 4th, the low-pressure cavity pump housing; The 5th, the impeller fastening piece; The 6th, axle: the 7th, high and low pressure chamber pump chamber fastening piece; 8 pump covers; A is the pump cover suction port; B is the pump cover relief opening.Gas enters distributor by pump cover suction port a; Gas after two stage compression is discharged through pump cover relief opening b.

Distributor 1 usefulness distributor fastening piece 8 is fixed on the pump cover 9, and the high and low pressure impeller 2 of integral manufacturing is fixed on axle 6 ends by impeller fastening piece 5; The hyperbaric chamber pump housing 3, the low-pressure cavity pump housing 4 dock with pump cover 9 usefulness fastening pieces 7; The inner conical surface of impeller and distributor male cone (strobilus masculinus) Spielpassung.

Owing to simplified the structure of compression chamber after improving, compression chamber only is made up of integral wheel, the low-pressure cavity pump housing, the hyperbaric chamber pump housing, distributor four parts, the structure of compression chamber is more compact, and is easy for installation; Improve the junction plane (being impeller inner conical surface and distributor male cone (strobilus masculinus)) that the back compression chamber has only a need control gap, realize by adjusting moving axially of integral wheel in this gap, because fitting surface is a cone, integral wheel is axially adjusted 1mm, two cooperate conical surface gap only to adjust 0.1mm, therefore matching gap is easy to control adjustment and accurately easy, does not have cumulative error to produce.

Consult Fig. 2, among the figure, the 10th, the low-pressure cavity suction port; 11 low-pressure cavity relief openings; The 12nd, the hyperbaric chamber suction port; The 13rd, the hyperbaric chamber relief opening.

Consult Fig. 4,5, among the figure, the 14th, axis hole.

Consult Fig. 6, among the figure, the 3rd, the hyperbaric chamber pump housing; The 4th, the low-pressure cavity pump housing; The 7th, fastening piece; The 9th, pump cover.

Consult Fig. 7, among the figure, the 15th, the impeller tightening nut; The 16th, hyperbaric chamber exhaust disk; The 17th, high-pressure impeller; The 18th, the hyperbaric chamber pump housing; The 19th, the impeller spacer; The 20th, the air-breathing disk of hyperbaric chamber; The 21st, low-pressure cavity exhaust disk; 22 low pressure impeller; The 23rd, the low-pressure cavity pump housing; 24 socket head screws; The 25th, the air-breathing disk of low-pressure cavity; The 26th, axle; The 27th, pump housing fastening piece; The 28th, pump cover; The 29th, plug; The 30th, suction port; The 31st, relief opening.

The twin-stage liquid-piston compressor compression chamber of prior art is by the air-breathing disk of low-pressure cavity, the low-pressure cavity impeller, the low-pressure cavity pump housing, low-pressure cavity exhaust disk, the air-breathing disk of hyperbaric chamber, the hyperbaric chamber impeller, the hyperbaric chamber pump housing, hyperbaric chamber exhaust disk, impeller spacer nine parts are formed, high, low pressure impeller is part independently, adopt split production, partial installation, the junction plane that the high low pressure impeller of rotation and height chamber suction and discharge disk have four strict control gaps of need (is the air-breathing disk end face of low pressure impeller end face and low-pressure cavity, low pressure impeller end face and low-pressure cavity exhaust disk end face, the air-breathing disk end face of high-pressure impeller end face and hyperbaric chamber, high-pressure impeller and hyperbaric chamber exhaust disk end face), therefore structure is loaded down with trivial details, install complicated, it is big that integrating error are adjusted in the gap, and the gap is difficult to guarantee to adjust evenly.

The utility model applicating example after the improvement:

Distributor 1 usefulness distributor fastening piece 8 is fixed on the pump cover 9; High and low pressure impeller 2 is fixed on axle 6 ends by impeller fastening piece 5; Again the hyperbaric chamber pump housing 3, the low-pressure cavity pump housing 4 are docked with pump cover 9 usefulness fastening pieces 7; The inner conical surface of impeller and distributor male cone (strobilus masculinus) Spielpassung.The just junction plane (being impeller inner conical surface and distributor male cone (strobilus masculinus)) of control gap that needs adjusting, realize by adjusting moving axially of integral wheel in this gap, because fitting surface is a cone, integral wheel is axially adjusted 1mm, two cooperate conical surface gap only to adjust 0.1mm, therefore matching gap is easy to control adjustment and accurately easy, does not have cumulative error to produce.

Improvement structure of the present utility model is applied to claimant's product 2LYG600 liquid rotary compressor, confirms through test, produces a desired effect.

Owing to simplified the compression chamber structure after improving, saving about 30% than original structure form aspect the raw materials consumption, reduced the component number that needs processing simultaneously, simplified the parts machining process flow process, shorten machining period about 40% than original structure; Improve the back because the junction plane of a need control gap is only arranged, make assembling more simple, the gap adjustment is more accurate, has eliminated cumulative error; Make the working efficiency of compressor bring up to 70% by 35% after the improvement, exhaust port pressure is brought up to 1.2Mpa.G by 0.6Mpa.G, has improved the stability of compressor operating simultaneously greatly, and brought up to 10000 hour by 6000 hours Mean time to failure.

Claims (2)

1. a two-stage liquid-piston compressor comprises high-pressure impeller, and low pressure impeller and compression chamber is characterized in that:

Described high-pressure impeller, low pressure impeller integral body is processed as one, and overall package is socketed on the rotary arm shaft of high speed rotating;

Compression chamber is made up of integral wheel, the low-pressure cavity pump housing, the hyperbaric chamber pump housing and distributor four parts.

2. according to the described two-stage liquid-piston compressor of claim 1, it is characterized in that described impeller inner conical surface and distributor male cone (strobilus masculinus) Spielpassung.

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