CN202301044U - Screw type refrigeration compressor body for air conditioner - Google Patents
Screw type refrigeration compressor body for air conditioner Download PDFInfo
- Publication number
- CN202301044U CN202301044U CN2011203978944U CN201120397894U CN202301044U CN 202301044 U CN202301044 U CN 202301044U CN 2011203978944 U CN2011203978944 U CN 2011203978944U CN 201120397894 U CN201120397894 U CN 201120397894U CN 202301044 U CN202301044 U CN 202301044U
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- air
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- screw type
- compressor
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Abstract
The utility model discloses a screw type refrigeration compressor body for an air conditioner, which comprises a case. A female and male rotor cavity is arranged in the case, a radial air sucking opening is arranged at an intersection of an inner surface of the female and male rotor cavity, a dug hole of an inner cavity hole wall is disposed below the radial air sucking opening, an air inlet which can be connected with the radial air sucking opening is arranged at the bottom of the case, a valve stem positioning boss is arranged at an intersection of the outer surface of the female and male rotor cavity above the air inlet, a valve plate spigot is disposed in the air inlet, and the valve stem positioning boss and the valve plate spigot are used for mounting a valve stem and a valve plate of an air sucking check valve. By the aid of the screw type refrigeration compressor, air can directly flow into a basic volume formed by the female and male rotor cavity along the perpendicular direction of a rotor shaft, various tooth sockets of a female and male rotor suck air uniformly, pressure is balanced, air sucking resistance and internal leakage of a compressor are reduced, air sucking quantity of the compressor is increased, and reverse rotation of the rotor and oil pumping are prevented when the compressor is shut down.
Description
Technical field
The utility model relates to screw type refrigerating compressor, refers to a kind of body of idle call screw type refrigerating compressor particularly.
Background technique
The idle call screw type refrigerating compressor is as double-screw compressor; According to the theory of engagement is to lean on the negative and positive rotor tooth to be meshing with each other to do rotation motion and form the function that periodically variable cavity volume is accomplished suctions, compression and discharge refrigeration working medium gas; Its housing that parcel negative and positive rotor outer cylinder must be arranged seals up the tooth of rotor and teeth groove could form airtight between cog cavity volume, and this housing is exactly the screw type refrigerating compressor body.
What existing screw type refrigerating compressor body adopted is the double walled shell construction, by general operating mode design, need spray into a large amount of lubricant oil as the one of which, for this reason must huge lubricating oil separation and the cooling unit of configuration.Only offer radial suction on the for example existing body, gettering quantity is less than normal, and inhalation resistance is bigger, causes power consumption to increase.In addition, the air-breathing part of existing compressor is open structure, does not have backstop, is prone to take place the rotor reversing and the oily phenomenon of running quickly during compressor shutdown.How through 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.
Summary of the invention
The purpose of the utility model is exactly that a kind of simple in structure, stable, energy-efficient idle call screw type refrigerating compressor body will be provided.
For realizing above-mentioned purpose; The idle call screw type refrigerating compressor body that the utility model designed; Comprise casing; Be provided with the negative and positive rotor cavity in the said casing, its special way is: said negative and positive rotor cavity internal surface intersection offers radial suction, and the below of said radial suction is provided with inner chamber hole wall borehole; The bottom of said casing is provided with the suction port that can link to each other with radial suction; The negative and positive rotor cavity outer surface intersection of said suction port top is provided with the valve rod positioning boss; Said suction port set inside has the valve plate seam, and said valve rod positioning boss and valve plate seam are used to install the valve rod and the valve plate of air-breathing check valve.
Further, offer the tapped hole of the valve rod that is used for fixing air-breathing check valve on the said valve rod positioning boss, can make things convenient for the dismounting of valve rod.
The advantage of the utility model is: the valve rod positioning boss of suction port place design and valve plate seam can be so that the installations of air-breathing check valve, thereby the rotor reversing take place when preventing compressor shutdown and to oily phenomenon.The inner chamber hole wall borehole that the below of radial suction is offered can make gas flow directly in the formed element volume of negative and positive rotor cavity along the rotor shaft Vertical direction; And make air-breathing even, the pressure balance of each teeth groove of negative and positive rotor; Compressor air suction resistance and internal leakage have effectively been reduced; Increase the compressor air suction amount, thereby can satisfy the function needs of air conditioner refrigerating purposes, improved the operational efficiency of unit.
Description of drawings
Fig. 1 is a kind of main TV structure schematic representation of idle call screw type refrigerating compressor body.
Fig. 2 is the main sectional structure schematic representation of Fig. 1.
Fig. 3 is A-A sectional structure schematic representation of Fig. 1.
Fig. 4 is the expansion schematic representation of casing inner wall radial suction among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to describe in detail.
Idle call screw type refrigerating compressor body shown in the figure has casing 1, is provided with negative and positive rotor cavity 2 in the casing 1, and negative and positive rotor cavity 2 internal surface intersections offer 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 link to each other with radial suction 3, and the negative and positive rotor cavity 2 outer surface intersections of suction port 5 tops are provided with valve rod positioning boss 7, offer tapped hole on the valve rod positioning boss 7.Suction port 5 set inside have valve plate seam 6, and valve rod positioning boss 7 and valve plate seam 6 are used to install the valve rod and the valve plate of air-breathing check valve.
The utility model is when start work, and refrigerant vapour acts on the valve plate that is located on the valve plate seam 6 through suction port 5, and valve plate is moved along the valve rod that is assemblied on the valve rod positioning boss 7.Like this, refrigerant vapour is divided into two-way and flows in the negative and positive rotor cavity 2 formed element volumes: a curb axially intakeport inflow, and another road then directly flows into along inner chamber hole wall borehole 4, radial suction 3.Tapped hole on the valve rod positioning boss 7 is used to assemble valve rod, and the work schedule refrigerant vapour does not get in the negative and positive rotor cavity 2 through the tapped hole on the valve rod positioning boss 7.The utility model is when shutting down; Negative and positive rotor cavity 2 internal pressures are equal to exhaust pressure; Valve plate on the valve plate seam 6 is adjacent to valve plate seam 6 rapidly along valve rod under the effect of front and back pressure reduction and self gravitation; Suction port 5 and negative and positive rotor cavity 2 are effectively separated, prevent that refrigerant vapour and lubricant oil in the negative and positive rotor cavity 2 from along suction port 5 vaporizer that flows backwards back, also having avoided the negative and positive rotor to reverse to the damage of compressor.
Claims (2)
1. idle call screw type refrigerating compressor body; Comprise casing (1); Be provided with negative and positive rotor cavity (2) in the said casing (1); It is characterized in that: said negative and positive rotor cavity (2) internal surface intersection offers radial suction (3), and the below of said radial suction (3) is provided with inner chamber hole wall borehole (4); The bottom of said casing (1) is provided with the suction port (5) that can link to each other with radial suction (3); Negative and positive rotor cavity (2) the outer surface intersection of said suction port (5) top is provided with valve rod positioning boss (7); Said suction port (5) set inside has valve plate seam (6), and said valve rod positioning boss (7) and valve plate seam (6) are used to install the valve rod and the valve plate of air-breathing check valve.
2. idle call screw type refrigerating compressor body according to claim 1 is characterized in that: the tapped hole that offers the valve rod that is used for fixing air-breathing check valve on the said valve rod positioning boss (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203978944U CN202301044U (en) | 2011-10-19 | 2011-10-19 | Screw type refrigeration compressor body for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203978944U CN202301044U (en) | 2011-10-19 | 2011-10-19 | Screw type refrigeration compressor body for air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202301044U true CN202301044U (en) | 2012-07-04 |
Family
ID=46369953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203978944U Expired - Lifetime CN202301044U (en) | 2011-10-19 | 2011-10-19 | Screw type refrigeration compressor body for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202301044U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653463A (en) * | 2013-11-22 | 2015-05-27 | 珠海格力电器股份有限公司 | Screw compressor body structure and screw compressor |
-
2011
- 2011-10-19 CN CN2011203978944U patent/CN202301044U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653463A (en) * | 2013-11-22 | 2015-05-27 | 珠海格力电器股份有限公司 | Screw compressor body structure and screw compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |
|
| CX01 | Expiry of patent term |