Single-stage reciprocating piston compressor for mixed refrigerant

A mixed refrigerant and reciprocating technology, applied in the field of compressors, can solve the problems of reducing compressor efficiency and reliability, and achieve the effects of reducing friction work, improving motor efficiency, and small clearance volume

Inactive Publication Date: 2020-11-06
QINGDAO WANBAO COMPRESSOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to changes in the physical properties of the refrigerant, the compression efficiency, gas transmission coefficient, and pressure loss of the compressor will all change, so the efficiency and reliability of the compressor may be reduced.

Method used

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  • Single-stage reciprocating piston compressor for mixed refrigerant
  • Single-stage reciprocating piston compressor for mixed refrigerant
  • Single-stage reciprocating piston compressor for mixed refrigerant

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0029] In a typical embodiment of the present invention, such as Figure 1 ~ Figure 4 As shown, in this embodiment, a single-stage reciprocating piston 14 compressor for mixed refrigerants is disclosed, which is suitable for small refrigeration systems such as refrigerators and freezers, and can meet the requirements of evaporation temperature ≤ -40°C, including the shell 1. Motor 2, pump body 3 and frequency conversion controller 4, housing 1, motor 2 and pump body 3 form a sealed body; motor 2 is connected to pump body 3 to drive pump body 3, and motor 2 is connected to frequency conversion controller 4.

[0030] The motor 2 includes a stator and a rotor 9 .

[0031] There is an inner chamber 5 in the pump body 3, which is named as a compression chamber in this embodiment because its function is compression. There is also a crankcase 6 in the pump body 3, and a crankshaft 7 and a connecting rod 8 are arranged inside the crankcase 6. , the crankcase 6 is connected with the r...

Embodiment 2

[0059] In a typical implementation of the present invention, embodiment 2 speeds up a refrigeration unit, including a single-stage reciprocating piston 14 compressor for mixed refrigerant as described in embodiment 1; also includes an evaporator and The condenser, evaporator and condenser are all communicated with the single-stage reciprocating piston 14 compressor for mixed refrigerant.

[0060] The refrigeration cycle principle of the refrigeration unit is that the compressor sucks low-temperature and low-pressure refrigerant gas from the suction pipe, and the compressor drives the piston 14 of the pump body 3 to compress the gas through the operation of the motor 2, and then discharges high-temperature and high-pressure refrigerant gas to the exhaust pipe. The refrigerant gas that powers the refrigeration cycle. In this process, the refrigerant itself circulates continuously in the refrigeration unit, and then realizes refrigeration through its own state change. The refrige...

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PUM

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Abstract

The invention discloses a single-stage reciprocating piston compressor for a mixed refrigerant, and belongs to the technical field of compressors. The efficiency and reliability of the compressor in the case of using the mixed refrigerant can be improved. The single-stage reciprocating piston compressor comprises a shell, a motor, a pump body and a variable-frequency controller; the shell, the motor and the pump body constitute a sealed machine body; the pump body comprises a cylinder; a piston is arranged in the cylinder, the motor drives the piston to move back and forth, and a valve plate is arranged at the top of the cylinder; the tail end of the cylinder is connected with a silencer through an air suction valve block arranged on the valve plate; when the piston moves back and forth, the valve plate can complete corresponding air suction and air exhausting; and the cylinder comprises two parts, and a coating is arranged at the junction of the two parts of the cylinder.

Description

technical field [0001] The invention belongs to the technical field of compressors, and in particular relates to a single-stage reciprocating piston compressor for mixed refrigerants. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] In a refrigeration cycle device, a compressor, a pressure reducer such as a capillary tube or an expansion valve, a condenser, an evaporator, and the like are connected by piping to form a refrigeration cycle circuit. As refrigerants used in these refrigeration devices, there are Freons, hydrochlorofluorocarbons, hydrofluorocarbons, and the like. Due to the hole in the ozone layer and the greenhouse effect of the atmosphere, the above-mentioned refrigerants are restricted by various countries and gradually eliminated. Hydrocarbon refrigerants have zero ODP, extremely low GWP, and are non-toxic. They have been used more...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B35/04F04B39/00F04B39/10F04B39/12F04B49/06F04B49/20
CPCF04B35/04F04B39/00F04B39/0005F04B39/0022F04B39/0094F04B39/1046F04B39/1073F04B39/122F04B39/125F04B49/06F04B49/20
Inventor 邓妮孙海滨王慧楠王燕霞胡滨张豪杰黄守帅孙文兰同宇
Owner QINGDAO WANBAO COMPRESSOR
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