CN202301043U - Screw type refrigeration compressor for air conditioning - Google Patents
Screw type refrigeration compressor for air conditioning Download PDFInfo
- Publication number
- CN202301043U CN202301043U CN2011203968800U CN201120396880U CN202301043U CN 202301043 U CN202301043 U CN 202301043U CN 2011203968800 U CN2011203968800 U CN 2011203968800U CN 201120396880 U CN201120396880 U CN 201120396880U CN 202301043 U CN202301043 U CN 202301043U
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- compressor
- rotor cavity
- screw type
- machine body
- valve plate
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Abstract
The utility model discloses a screw type refrigeration compressor for air conditioning. The screw type refrigeration compressor comprises a machine body, wherein a Yin/Yang rotor cavity is formed in the machine body. The screw type refrigeration compressor for air conditioning is characterized in that: one side of the machine body is provided with a suction end seat; the bottom of the machine body is provided with an air inlet which is communicated with the suction end seat; a valve stem is vertically arranged on the wall surface of the Yin/Yang rotor cavity above the air inlet; a valve plate is movably sleeved on the valve stem; the valve plate is positioned on a valve plate seam inside the air inlet; the other side of the machine body is provided with an exhaust end seat; and the exhaust end seat is provided with a lateral exhaust port. A preferred scheme is that: the valve stem is fixed in a screw hole in the wall surface of the Yin/Yang rotor cavity through a head thread. Further, an O-shaped sealing ring is arranged between the lower side of the head thread of the valve stem and the screw hole in the wall surface of the Yin/Yang rotor cavity. The compressor can prevent the phenomena of rotor inversion and oil pumping when the compressor is stopped, the height of the compressor is reduced, the volume of the machine is reduced, a machine set has a compact structure and convenient to assemble, and the welding reliability is improved.
Description
Technical field
The utility model relates to refrigeration compressor, refers to it is a kind of idle call screw type refrigerating compressor particularly.
Background technique
The idle call screw type refrigerating compressor is as double-screw compressor, have a pair ofly intermesh, the negative and positive rotor of the spiral-shaped teeth of opposite rotation direction.The tooth of rotor is equivalent to piston, and the common swept volume that constitutes such as the teeth groove of rotor, the internal face of body and two ends end cap is equivalent to cylinder.The two ends of body are provided with suction, vent ports.Along with rotor rotatablely moving in body, make swept volume because the intrusion of tooth or disengagement and constantly change, thereby the volume between every pair of teeth groove of periodic variation rotor reaches the purpose of air-breathing, compression and exhaust.
Though traditional double-screw compressor also is to adopt body air-breathing, it designs by general operating mode, has following shortcoming: one of which; For preventing that foreign matter from getting into compressor; Must dispose an air-breathing filter in the body, this makes the compressor air suction resistance bigger, and power consumption increases.Its two, have long bend pipe to be connected between traditional compressor suction means and the vaporizer, this has also increased inhalation resistance.Its three, the air-breathing part of traditional compressor is open structure, does not have backstop, and the rotor reversing and the oily phenomenon of running quickly be prone to take place during shutdown.Its four, what traditional compressor adopted is the base bleed mode, this moment, compressor must place on the bigger oil separator, need take bigger area in the practical operation.In sum, as if improving the traditional compressor performance, improving its working efficiency, must dispose suitable suction means and exhaust mode reasonable in design.
Summary of the invention
The purpose of the utility model is exactly that a kind of simple in structure, easy for installation, energy-efficient idle call screw type refrigerating compressor will be provided.
For realizing above-mentioned purpose, the idle call screw type refrigerating compressor that the utility model designed comprises body; Be provided with the negative and positive rotor cavity in the said body; Its special way is: a side of said body is provided with suction end base, and the bottom of said body is provided with the suction port that communicates with suction end base, is vertically installed with valve rod on the negative and positive rotor cavity wall of said suction port top; Be movably installed with valve plate on the said valve rod, said valve plate is located on the inner valve plate seam of suction port; The opposite side of said body is provided with exhausting end base, and said exhausting end base is provided with the side relief opening.
As preferred version, said valve rod is fixed in the screw on the said negative and positive rotor cavity wall through head threads.
Further, also be provided with O-ring seals between the screw on the head threads of said valve rod below and the said negative and positive rotor cavity wall.
The advantage of the utility model is: the compressor that is designed adopts the mode of bottom inflow; Make the refrigerant vapor that from vaporizer, comes out directly suck suction port; Can significantly reduce the inhalation resistance loss like this, and can reduce the compressor height, reduction compressor volume.And, above suction port, arrange valve rod, valve board assembly as air-breathing check valve, the rotor reversing and the oily phenomenon of running quickly take place in the time of can preventing compressor shutdown.Simultaneously, adopt the mode of sidepiece exhaust, can make set structure compact, make things convenient for the machine assembly, improve soldering reliability.The utility model can effectively satisfy the function needs of air conditioner refrigerating purposes, improves the operational efficiency of unit.
Description of drawings
Fig. 1 is a kind of main sectional structure schematic representation of idle call screw type refrigerating compressor.
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 shown in the figure comprises body 1, and body 1 is connected on the vaporizer through flange; Be provided with negative and positive rotor cavity 9 in the body 1; One side of body 1 is provided with suction end base 8, and the bottom of body 1 is provided with the suction port 2 that communicates with suction end base 8, and suction port 2 links to each other with the vaporizer relief opening; It can reduce the compressor height, reduces inhalation resistance.Be vertically installed with valve rod 3 on negative and positive rotor cavity 9 walls of suction port 2 tops; Be movably installed with valve plate 4 on the valve rod 3, valve plate 4 is located on the valve plate seam of suction port 2 inside, can effectively reduce the loss of inhalation resistance; Be difficult for taking place the rotor reversing and the oil of running quickly during compressor shutdown; Can prevent effectively that steam and lubricant oil from flowing backwards, and to increase work efficiency, guarantees the effect of air-breathing exhaust; The opposite side of body 1 is provided with exhausting end base 6, and exhausting end base 6 is provided with side relief opening 7, makes set structure compact, makes things convenient for the machine assembly, improves soldering reliability.Particularly, valve rod 3 is fixed in the screw on negative and positive rotor cavity 9 walls through head threads.Also be provided with O-ring seals 5 between the head threads below of valve rod 3 and the screw on said negative and positive rotor cavity 9 walls; Its effect is to prevent the interior opposing steam flow of element volume to suction port, guarantees that refrigerant vapor only can flow in the negative and positive rotor cavity 9 along axial intakeport, the radial suction of design.
The working procedure of the utility model is following; When start work; Refrigerant vapor acts on the valve plate 4 from the suction port 2 of vaporizer relief opening through compressor block 1; Valve plate 4 is moved along valve rod 3; Refrigerant vapor flows in the negative and positive rotor cavity 9 along axial intakeport 2, radial suction smoothly like this, and O shape circle 5 prevents that the gas in the compression process is back to suction port 2 along valve rod 3, and compress at the end compressed vapour is discharged in the oil separator that connects with it through the sidepiece relief opening 7 on the exhausting end base 6; When shutting down; Negative and positive rotor cavity 9 internal pressures are equal to the pressure in the sidepiece relief opening 7; Valve plate 4 is close to the valve plate seam rapidly along valve rod 3 under the effect of front and back pressure reduction and self gravitation; Prevent that refrigerant vapor and lubricant oil in the negative and positive rotor cavity 9 from along suction port 2 vaporizer that flows backwards back, also having avoided the negative and positive rotor to reverse to the damage of compressor.
Claims (3)
1. idle call screw type refrigerating compressor; Comprise body (1); Be provided with negative and positive rotor cavity (9) in the said body (1); It is characterized in that: a side of said body (1) is provided with suction end base (8), and the bottom of said body (1) is provided with the suction port (2) that communicates with suction end base (8), is vertically installed with valve rod (3) on negative and positive rotor cavity (9) wall of said suction port (2) top; Be movably installed with valve plate (4) on the said valve rod (3), said valve plate (4) is located on the inner valve plate seam of suction port (2); The opposite side of said body (1) is provided with exhausting end base (6), and said exhausting end base (6) is provided with side relief opening (7).
2. idle call screw type refrigerating compressor according to claim 1 is characterized in that: said valve rod (3) is fixed in the screw on said negative and positive rotor cavity (9) wall through head threads.
3. idle call screw type refrigerating compressor according to claim 2 is characterized in that: also be provided with O-ring seals (5) between the head threads below of said valve rod (3) and the screw on said negative and positive rotor cavity (9) wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203968800U CN202301043U (en) | 2011-10-18 | 2011-10-18 | Screw type refrigeration compressor for air conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203968800U CN202301043U (en) | 2011-10-18 | 2011-10-18 | Screw type refrigeration compressor for air conditioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202301043U true CN202301043U (en) | 2012-07-04 |
Family
ID=46369952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203968800U Expired - Lifetime CN202301043U (en) | 2011-10-18 | 2011-10-18 | Screw type refrigeration compressor for air conditioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202301043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104499A (en) * | 2012-11-15 | 2013-05-15 | 福建雪人压缩机科技有限公司 | Refrigeration screw compressor suction end base with check valve |
-
2011
- 2011-10-18 CN CN2011203968800U patent/CN202301043U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104499A (en) * | 2012-11-15 | 2013-05-15 | 福建雪人压缩机科技有限公司 | Refrigeration screw compressor suction end base with check valve |
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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 |