CN104728115A - Industrial refrigeration compressor body - Google Patents
Industrial refrigeration compressor body Download PDFInfo
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- CN104728115A CN104728115A CN201310714879.1A CN201310714879A CN104728115A CN 104728115 A CN104728115 A CN 104728115A CN 201310714879 A CN201310714879 A CN 201310714879A CN 104728115 A CN104728115 A CN 104728115A
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- cavity
- compressor
- noise reduction
- valve
- casing
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Abstract
The invention discloses an industrial refrigeration compressor body. The industrial refrigeration compressor body is characterized in that the inner surface of a rotor cavity (2) is provided with a radial air suction opening (3), an inner chamber hole wall aperture (4) is arranged below the radial air suction opening (3), the bottom of a housing (1) is provided with air inlets (5) connected to the radial air suction opening (3), a valve rod positioning boss (7) is arranged at the outer surface joint of the rotor cavity (2) above the air inlets (5), one side of the housing (1) is provided with an exhausting cavity (8), the connection surface of the housing (1) and a compressor valve plate is provided with a secondary exhausting cavity (10), the exhausting cavity and the secondary exhausting cavity are communicated by a secondary exhausting hole (9), and a noise reduction air inlet and a noise reduction air outlet of the secondary exhausting cavity and the compressor valve plate are corresponding. The industrial refrigeration compressor body improves compressor work efficiency, reduces noise, reduces equipment wear and operates stably.
Description
Technical field
The present invention relates to a kind of compressor block.
Background technique
Compressor is one of important constituent element of refrigeration system, it sucks the refrigerant gas of low-temp low-pressure from sucking pipe, after driving piston to compress it by motor rotation, the refrigerant gas of High Temperature High Pressure is discharged to outlet pipe, for refrigeration cycle provides power, thus realize the refrigeration cycle of compression condensation-expansion-evaporation.Compressor is generally made up of body, motor, cylinder body, piston, control apparatus (starter and heat protector) and cooling system.
What existing refrigeration compressor body adopted is double walled shell construction, and it needs during use to spray into a large amount of lubricant oil generally by general operating condition design, must configure huge lubricating oil separation and cooling unit for this reason.In addition, the air-breathing part of existing compressor is open structure, does not have backstop, and rotor reversing and oily phenomenon of running quickly easily occur during compressor shutdown.How by rational casing structure design improve traditional compressor performance, improve its working efficiency, be the direction that related domain scientific research personnel makes great efforts to explore always.
In addition, body plays a part fixed crankshaft and cylinder body within the compressor, the stability of body affects the working condition of bent axle to a great extent, the periodic vibration that bent axle rotary motion at work brings to whole compressor, has tested the stability of body.Between compressor crank shaft hole and bent axle, relative rotation speed quickly, if there is some friction, just may reduce the input power of compressor, and bent axle there will be vibration in high-speed rotation, if vibration runs up to a certain degree, easily cause the vibration of whole compressor, affect work.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of industrial refrigeration compressor block.The working efficiency of compressor can be improved, reduce noise, reduce equipment attrition, operate steadily, to overcome the defect of existing industrial refrigeration compressor block.
In order to solve this technical problem, the present invention by the following technical solutions:
Industrial refrigeration compressor block, comprises casing, it is characterized in that: be provided with rotor cavity in casing, and rotor cavity internal surface intersection offers radial suction, and the below of radial suction offers inner chamber hole wall borehole; The bottom of casing is provided with the suction port that can be connected with radial suction, and the rotor cavity outer surface intersection above suction port is provided with valve rod positioning boss, and valve rod positioning boss offers tapped hole; Suction port inside is provided with valve plate seam, and valve rod positioning boss and valve plate seam are for installing valve rod and the valve plate of suction non-return valve; The side of casing is also provided with exhaust die cavity, the junction surface of casing and compressor valve board is provided with a secondary exhaust die cavity, described exhaust die cavity is connected by secondary exhaust hole with between secondary exhaust die cavity, secondary exhaust die cavity is corresponding with the noise reduction inlet hole on compressor valve board and noise reduction air outlet hole, and the aperture of noise reduction air outlet hole is 2.5 times of noise reduction inlet hole aperture.
Good effect of the present invention is:
The valve rod positioning boss of suction port place design and valve plate seam are convenient to the installation of suction non-return valve, thus rotor reversing and oily phenomenon of running quickly occur when preventing compressor shutdown.The inner chamber hole wall borehole that the below of radial suction is offered can make gas flow directly in the element volume that negative and positive rotor cavity formed along rotor shaft Vertical direction, and make each teeth groove air-breathing of negative and positive rotor evenly, pressure balance, effectively reduce compressor air suction resistance and internal leakage, increase compressor air suction amount, thus meet refrigeration needs, improve the operational efficiency of unit.
Gas flows in the cylinder, and the reason due to pressure can form turbulent flow and collide to produce impact with casing wall in compressor, arranges and is vented the noise that die cavity can reduce impact, and made in order the flow direction of air-flow by secondary exhaust hole.Because noise reduction air outlet hole is greater than noise reduction inlet hole, so noise reduction inlet hole plays the effect of air inlet restriction, make to be reduced by the kinetic energy of the air-flow of secondary exhaust bloop, serve the effect reducing noise, reduce the loss power of compressor simultaneously.Plane bearing be arranged so that this product operationally prevention frictional loss and mechanical vibration in all have greatly improved.The plane bearing be located in this annular groove is provided with two spacing preiections corresponding with spacing hole, prevents the lateral movement of plane bearing.Due to the existence of this spacing hole, lubricant oil can more successfully enter in plane bearing.
The features such as noise is low, abrasion is little so the present invention has, operate steadily, long service life.
Accompanying drawing explanation
Fig. 1 is side structure schematic diagram of the present invention.
Fig. 2 is Facad structure schematic diagram of the present invention.
Fig. 3 is overall structure schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1 and Figure 2, the present invention includes casing 1, be provided with rotor cavity 2 in casing 1, rotor cavity 2 internal surface intersection offers radial suction 3, and the below of radial suction 3 offers inner chamber hole wall borehole 4.The bottom of casing 1 is provided with the suction port 5 that can be connected with radial suction 3, and the rotor cavity 2 outer surface intersection above suction port 5 is provided with valve rod positioning boss 7, and valve rod positioning boss 7 offers tapped hole.Suction port 5 inside is provided with valve plate seam 6, and valve rod positioning boss 7 and valve plate seam 6 are for installing valve rod and the valve plate of suction non-return valve.
As shown in Figure 2, the side of casing 1 is also provided with exhaust die cavity 8, casing 1 is provided with a secondary exhaust die cavity 10 with the junction surface of compressor valve board, described exhaust die cavity is connected by secondary exhaust hole 9 with between secondary exhaust die cavity, secondary exhaust die cavity is corresponding with the noise reduction inlet hole on compressor valve board and noise reduction air outlet hole, and the aperture of noise reduction air outlet hole is 2.5 times of noise reduction inlet hole aperture.
The present invention is when the work of start, and refrigerant vapour is acted on by suction port 5 on the valve plate that is located on valve plate seam 6, and valve plate is moved along the valve rod be assemblied on valve rod positioning boss 7.Like this, in the element volume that refrigerant vapour is divided into two-way inflow rotor cavity 2 to be formed: a road axially intakeport flows into, and another road is then direct to be flowed into along inner chamber hole wall borehole 4, radial suction 3.Tapped hole on valve rod positioning boss 7 is for assembling valve rod, and work schedule refrigerant vapour is not entered in rotor cavity 2 by the tapped hole on valve rod positioning boss 7.The present invention is when shutting down; rotor cavity 2 internal pressure is equal to exhaust pressure; valve plate on valve plate seam 6 is adjacent to rapidly valve plate seam 6 along valve rod under the effect of front and back pressure reduction and self gravitation; suction port 5 and rotor cavity 2 are effectively separated; prevent the refrigerant vapour in rotor cavity 2 and lubricant oil from flowing back to vaporizer along suction port 5, it also avoid the damage of rotor reversion to compressor.
Claims (1)
1. industrial refrigeration compressor block, comprise casing (1), it is characterized in that: be provided with rotor cavity (2) in casing (1), rotor cavity (2) internal surface intersection offers radial suction (3), and the below of radial suction (3) offers inner chamber hole wall borehole (4); The bottom of casing (1) is provided with the suction port (5) that can be connected with radial suction (3), and rotor cavity (2) the outer surface intersection of suction port (5) top is provided with valve rod positioning boss (7), and (7) offer tapped hole to valve rod positioning boss; Suction port (5) inside is provided with valve plate seam (6), and valve rod positioning boss (7) and valve plate seam (6) are for installing valve rod and the valve plate of suction non-return valve; The side of casing (1) is also provided with exhaust die cavity (8), casing (1) is provided with a secondary exhaust die cavity (10) with the junction surface of compressor valve board, described exhaust die cavity is connected by secondary exhaust hole (9) with between secondary exhaust die cavity, secondary exhaust die cavity is corresponding with the noise reduction inlet hole on compressor valve board and noise reduction air outlet hole, and the aperture of noise reduction air outlet hole is 2.5 times of noise reduction inlet hole aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310714879.1A CN104728115A (en) | 2013-12-23 | 2013-12-23 | Industrial refrigeration compressor body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310714879.1A CN104728115A (en) | 2013-12-23 | 2013-12-23 | Industrial refrigeration compressor body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104728115A true CN104728115A (en) | 2015-06-24 |
Family
ID=53452377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310714879.1A Pending CN104728115A (en) | 2013-12-23 | 2013-12-23 | Industrial refrigeration compressor body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104728115A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968924A (en) * | 2017-05-20 | 2017-07-21 | 上乘精密科技（苏州）有限公司 | A kind of two-stage compression cylinder block and preparation method thereof |
-
2013
- 2013-12-23 CN CN201310714879.1A patent/CN104728115A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968924A (en) * | 2017-05-20 | 2017-07-21 | 上乘精密科技（苏州）有限公司 | A kind of two-stage compression cylinder block and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150624 |