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Dual-rotor two-stage enthalpy-increasing compressor, air conditioner and heat pump water heater

A compressor and double rotor technology, applied in the field of compressors, can solve the problems of high suction and discharge resistance of high and low compression chambers, low energy efficiency of compressors, large clearance volume of high pressure cylinders, etc., so as to improve volumetric efficiency and performance. , the effect of reducing the clearance volume

Active Publication Date: 2016-11-16
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The maximum distance between the edge of the low-pressure exhaust port of the low-pressure cylinder of the prior art dual-rotor two-stage enthalpy-increasing compressor and the axis of the crankshaft is equal to the maximum distance between the edge of the high-pressure exhaust port of the high-pressure cylinder and the axis of the crankshaft. As a result, the suction and exhaust resistance of the high and low compression chambers is relatively large, and the clearance volume of the high-pressure cylinder is large and the working volume is reduced, so that the overall energy efficiency of the compressor is low

Method used

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  • Dual-rotor two-stage enthalpy-increasing compressor, air conditioner and heat pump water heater
  • Dual-rotor two-stage enthalpy-increasing compressor, air conditioner and heat pump water heater
  • Dual-rotor two-stage enthalpy-increasing compressor, air conditioner and heat pump water heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, the dual-rotor two-stage enthalpy-increasing compressor in this embodiment includes a housing 17, a pump body assembly disposed at the lower part of the inner cavity of the housing 17, a motor disposed above the pump body assembly, and a motor disposed at the top of the housing 17. The upper cover assembly 18 , the liquid distributor 1 welded and fixed on the housing 17 , and the enthalpy-increasing structural assembly, and the motor includes a motor rotor 16 and a motor stator 15 . The enthalpy-increasing structural assembly includes an enthalpy-increasing pipe 8 , an enthalpy-increasing sealing ring 5 , an enthalpy-increasing pump body suction pipe 6 and an enthalpy-increasing housing suction pipe 7 , and the upper cover assembly 18 includes an exhaust pipe 19 .

[0032] figure 2 Shown is a schematic structural diagram of the pump body assembly, which includes a crankshaft 9, an upper flange 14, a high-pressure cylinder 12, a high-pressure...

Embodiment 2

[0040] Such as Figure 7 As shown, the structure of the dual-rotor, two-stage enthalpy-increasing compressor in this embodiment is substantially the same as that of the dual-rotor, two-stage enthalpy-increasing compressor in Embodiment 1, except that: between the partition plate 11 and the An intermediate cylinder 20 is arranged between the low-pressure cylinders 2, and the intermediate cylinder 20 is fixed on the low-pressure cylinder 2 by screws. The intermediate cylinder 20 is provided with an intermediate cylinder cavity 20a, and the opening of the intermediate cylinder cavity 20a is controlled by the partition. The plate 11 is sealed to form a medium-pressure cavity, which communicates with the low-pressure exhaust port 2b, the high-pressure suction port 12a and the enthalpy-increasing pipe 8 .

[0041] The refrigerant circulation process of the compressor of the present embodiment is as follows:

[0042] The refrigerant gas flows from the air conditioning system through...

Embodiment 3

[0044] Such as Figure 8 As shown, the structure of the dual-rotor, two-stage enthalpy-increasing compressor in this embodiment is substantially the same as that of the dual-rotor, two-stage enthalpy-increasing compressor in Embodiment 1, except that the housing 17 is welded outside An intermediate cylinder 20 is fixed, and a medium-pressure cavity is arranged on the intermediate cylinder 20, and the medium-pressure cavity communicates with the low-pressure exhaust port 2b, the high-pressure suction port 12a and the enthalpy increasing pipe 8. The circulation process of the refrigerant in the compressor of this embodiment is the same as that of the second embodiment, and will not be repeated here.

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Abstract

The invention discloses a dual-rotor two-stage enthalpy increasing compressor, an air conditioner and a heat pump water heater. The dual-rotor two-stage enthalpy increasing compressor comprises a shell, a crankshaft, an upper flange, a high-pressure cylinder, a partition plate, a low-pressure cylinder, a lower flange, a lower cover plate and an enthalpy increasing pipe, wherein a first exhaust port is formed in the upper flange; a high-pressure air suction port and a high-pressure exhaust port are formed in the high-pressure cylinder; a low-pressure air suction port and a low-pressure exhaust port are formed in the low-pressure cylinder; a second exhaust port is formed in the lower flange; and the maximum distance a between the edge of the low-pressure exhaust port and the axial line of the crankshaft is greater than the maximum distance b between the edge of the high-pressure exhaust port and the axial line of the crankshaft. The dual-motor two-stage enthalpy increasing compressor disclosed by the invention can reduce the air suction / exhaust resistance of the high- and low-pressure compression cavities, reduce the clearance volume of the high-pressure cylinder and improve the volume efficiency so as to improve the overall performance of the compressor.

Description

technical field [0001] The invention relates to a compressor, in particular to a dual-rotor, two-stage enthalpy-increasing compressor, and an air conditioner and a heat pump water heater using the dual-rotor, two-stage enthalpy-increasing compressor. Background technique [0002] The pump body assembly of the dual-rotor two-stage enthalpy-increasing compressor in the prior art includes a crankshaft, an upper flange, a high-pressure cylinder, a partition, a low-pressure cylinder, a lower flange, and a lower cover plate. The upper flange has an exhaust port, and the high-pressure The cylinder has a high-pressure suction port and a high-pressure exhaust port, the low-pressure cylinder has a low-pressure suction port and a low-pressure exhaust port, and the lower flange has an exhaust port. The maximum distance between the edge of the low-pressure exhaust port of the low-pressure cylinder of the prior art dual-rotor two-stage enthalpy-increasing compressor and the axis of the cr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C23/00F04C29/12
Inventor 李万涛
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION