CN201982299U - Two-stage rotary compressor - Google Patents
Two-stage rotary compressor Download PDFInfo
- Publication number
- CN201982299U CN201982299U CN 201020641752 CN201020641752U CN201982299U CN 201982299 U CN201982299 U CN 201982299U CN 201020641752 CN201020641752 CN 201020641752 CN 201020641752 U CN201020641752 U CN 201020641752U CN 201982299 U CN201982299 U CN 201982299U
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- CN
- China
- Prior art keywords
- rotary compressor
- lower flange
- stage rotary
- upper cylinder
- twin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a two-stage rotary compressor. The two-stage rotary compressor comprises an upper cylinder, an intermediate partition plate, a lower cylinder, a lower flange and an enthalpy increasing pipe, which are arranged from top to bottom, wherein the enthalpy increasing pipe is connected with the lower flange, and is also connected with a flash evaporator and an evaporator in sequence; the two-stage rotary compressor further comprises an suction duct; and one end of the suction duct is connected with the lower flange, and the other end of the suction duct is connected with the upper cylinder. After sucked in a liquid-distributor, refrigerants are drained in the lower flange with a noise elimination chamber after the lower cylinder is compressed to a certain pressure ratio, and are mixed with refrigerant gases entering into the enthalpy increasing pipe communicated with the lower flange and welded on a housing; and the mixed refrigerant gases enter into the upper cylinder through the suction duct for secondary compression, and after the refrigerant gases are compressed to exhaust pressure, the refrigerants are drained.
Description
Technical field
The utility model relates to compressor field, refers in particular to a kind of twin-stage rotary compressor.
Background technique
Air-conditioning refrigerant is used HFC (freon refrigerant), HCFC refrigeration agent such as R22, R410A etc. more at present, but because under ultralow temperature, those refrigeration agent specific volumes can increase, therefore, the unit gettering quantity of compressor reduces, cause the heating capacity of compressor to descend significantly, and because the reducing of the gettering quantity of refrigeration agent, specific discharge reduces, lubricated and cooling effect to the compressor inside pump housing and motor is not good, the pressure ratio of the suction and discharge of compressor is also very big at low temperatures, and the delivery temperature of compressor is very high.The rotary compressor of prior art is subjected to the restriction of structure, can form bigger leakage and frictional loss, and above factor causes compressor Performance And Reliability at low temperatures all undesirable.
The model utility content
The utility model provides a kind of pump twin-stage rotary compressor, and it can overcome the defective of prior art, reduces the leakage energy frictional loss of the pump housing, improves heating capacity and the reliability of compressor under ultralow temperature.
The utility model is achieved in that
A kind of twin-stage rotary compressor, it includes: from top to bottom the upper cylinder of She Zhiing, intermediate clapboard, lower cylinder, lower flange, and be connected with described lower flange increase the enthalpy pipe, the described enthalpy pipe that increases is connected with vaporizer with flash vessel successively, described twin-stage rotary compressor also comprises air suction bending tube, one end of described air suction bending tube is connected with described lower flange, and the other end is connected with described upper cylinder.
Preferably, described air suction bending tube is the U-shaped pipe.
Preferably, described air suction bending tube inserts by welding manner.
The utility model has following beneficial effect with respect to prior art:
The utility model twin-stage rotary compressor, it has improved the pump housing and heating capacity and the reliability of compressor under ultralow temperature.
Description of drawings
Fig. 1 is the structural representation of the utility model twin-stage rotary compressor.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated:
As shown in Figure 1, wherein, direction shown in the arrow is the refrigerant flow direction.The utility model twin-stage rotary compressor, it comprises housing 14, liquor separator 2, the sucking pipe 1 that is connected with described liquor separator 2, the housing sucking pipe 3 that connects housing 14 and liquor separator 2, be provided with the upper cylinder 10 that from top to bottom is provided with in the described housing 14, intermediate clapboard, lower cylinder 7, lower flange 6, and be connected with described lower flange 6 increase enthalpy pipe 5, the described enthalpy pipe 5 that increases is connected with vaporizer 18 with described flash vessel 17 successively by capillary tube 4, and described lower flange 6 is connected with the air suction bending tube 9 of described upper cylinder 10 by U-shaped, makes the mixing refrigerant in the lower flange 6 can directly enter upper cylinder 10.In the utility model, described air suction bending tube 9 is welding with the Placement of described lower flange 6, upper cylinder 10.
The twin-stage rotary compressor is when work, after air-conditioning or water-heater system energising, induction machine stator 12 drives eccentric crankshaft 11 high speed rotating with rotor 13 by the electromagnetic induction effect, refrigerant enters liquor separator 2 from sucking pipe 1 under action of pressure, enter the lower cylinder 7 of twin-stage rotary compressor from housing sucking pipe 3 again afterwards, refrigerant is compressed to certain pressure ratio or intermediate pressure in lower cylinder 7 after, enter into lower flange 6, bent axle 11 has the eccentric circle of two 180 ° of symmetries, under suitable operating mode, refrigerant is pressed onto intermediate pressure middle pressure refrigerant is pressed onto in the cavity of lower flange 6 in lower cylinder 7, the low-pressure liquid refrigerant of introducing from air-conditioning system vaporizer 18 enters the flash vessel 17 simultaneously, liquid refrigerant becomes after the low pressure refrigerant of gaseous state to introduce by capillary tube 4 and increases enthalpy pipe 5, after the refrigerant mixing of discharging in lower cylinder 7, enter the intakeport of upper cylinder 10 at last by air suction bending tube 9, discharge by outlet pipe 16 after in upper cylinder 10, refrigerant being pressed onto suitable exhaust pressure.By not adopting the mode of intermediate connection tube or hole transmission refrigerant on the lower cylinder 7, but directly carry out coolant transmission by being welded on housing 14 air suction bending tubes 9, improved the heating capacity and the performance of compressor preferably.
Only be specific embodiment of the utility model below, do not limit protection domain of the present utility model with this; Any replacement and the improvement done on the basis of not violating the utility model design all belong to protection domain of the present utility model.
Claims (3)
1. twin-stage rotary compressor, it includes: from top to bottom the upper cylinder of She Zhiing, intermediate clapboard, lower cylinder, lower flange, and be connected with described lower flange increase the enthalpy pipe, the described enthalpy pipe that increases is connected with vaporizer with flash vessel successively, it is characterized in that, described twin-stage rotary compressor also comprises air suction bending tube, one end of described air suction bending tube is connected with described lower flange, and the other end is connected with described upper cylinder.
2. twin-stage rotary compressor as claimed in claim 1 is characterized in that, described air suction bending tube is the U-shaped pipe.
3. twin-stage rotary compressor as claimed in claim 1 is characterized in that described air suction bending tube inserts by welding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020641752 CN201982299U (en) | 2010-12-06 | 2010-12-06 | Two-stage rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020641752 CN201982299U (en) | 2010-12-06 | 2010-12-06 | Two-stage rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982299U true CN201982299U (en) | 2011-09-21 |
Family
ID=44609761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020641752 Expired - Lifetime CN201982299U (en) | 2010-12-06 | 2010-12-06 | Two-stage rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201982299U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206733A (en) * | 2019-07-09 | 2019-09-06 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of more air supply compressors of Two-stage Compression and air conditioner |
-
2010
- 2010-12-06 CN CN 201020641752 patent/CN201982299U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206733A (en) * | 2019-07-09 | 2019-09-06 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of more air supply compressors of Two-stage Compression and air conditioner |
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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: 20110921 |
|
| CX01 | Expiry of patent term |