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Subcooled oil cooler and novel economizer screw machine refrigeration cycle system

A circulating system and oil cooler technology, applied in subcoolers, refrigerators, refrigeration components, etc., can solve the problems of difficult cleaning of scale, fluctuations in oil temperature, etc., and achieve the effects of stable gas volume, avoiding vibration, and efficient heat exchange

Active Publication Date: 2012-10-17
PANASONIC APPLIANCES REFRIGERATION SYST DALIAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application of oil cooling can choose siphon cooling, water cooling and direct refrigerant throttling cooling according to different occasions. Water cooling is limited by the geographical environment, and is prone to defects such as scale and difficult to clean; siphon cooling and direct refrigerant throttling cooling will have problems. Affected by the outside world, resulting in fluctuations in oil temperature

Method used

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  • Subcooled oil cooler and novel economizer screw machine refrigeration cycle system
  • Subcooled oil cooler and novel economizer screw machine refrigeration cycle system
  • Subcooled oil cooler and novel economizer screw machine refrigeration cycle system

Examples

Experimental program
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Effect test

Embodiment 1

[0018] Embodiment 1: as image 3 Shown is a new economizer screw machine refrigeration cycle system using the above-mentioned subcooling oil cooler, which is characterized in that the exhaust gas from compressor 1 enters oil separator 2 to separate refrigerant gas and refrigerated oil, high temperature and high pressure refrigeration The agent gas enters the condenser 3 and is condensed into a liquid. The liquid in the condenser 3 enters the liquid receiver 4. The liquid outlet pipeline of the liquid receiver 4 is divided into two routes. The main route enters the supercooled oil cooler 6 and is supercooled. After being throttled by the throttle valve 7, the liquid enters the evaporator 8 to evaporate and absorb external heat, and the evaporated gas passes through the gas separator 9 to separate the mixed liquid and return to the compressor 1 to be compressed again; the attached liquid, when When the liquid in the container is at the lower limit, the controller controls the so...

Embodiment 2

[0019] Embodiment 2: as Figure 4 Shown is a new economizer screw machine refrigeration cycle system using the above-mentioned subcooling oil cooler, which is characterized in that the exhaust gas from the compressor 1 enters the oil separator 2 to separate the refrigerant gas from the refrigerated oil, and the high-temperature and high-pressure refrigerant gas Entering the condenser 3 to be condensed into liquid, the liquid in the condenser 3 enters the liquid receiver 4, the liquid outlet pipeline of the liquid receiver 4 is divided into two routes, the main route enters the supercooled oil cooler 6 and is supercooled, and the supercooled After the liquid is throttled by the throttle valve 7, it enters the evaporator 8 to evaporate and absorb external heat. The evaporated gas passes through the gas separator 9, separates the mixed liquid, and returns to the compressor 1 to be compressed again; the attached liquid, when in the container When the liquid is at the lower limit, ...

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Abstract

The invention discloses a subcooled oil cooler and a novel economizer screw machine refrigeration cycle system. The subcooled oil cooler is a device in which an oil cooler and a liquid subcooler are placed in the same container. The system comprises that: a compressor is connected with an oil separator; the oil separator is connected with a condenser; the condenser is connected with a reservoir; the reservoir has two paths to be connected with two interfaces of the subcooled oil cooler; air outlets of the oil content are connected with an interface of the subcooled oil cooler and an inlet of a two-position three-way valve respectively; an air outlet of the subcooled oil cooler is connected with the other inlet of the two-position three-way valve; the outlets of the two-position three-way valve are connected with the compressor respectively; a gas outlet of the subcooled oil cooler is connected with a middle cavity of the compressor; the other gas outlet of the subcooled oil cooler is successively connected with a throttling valve and an evaporator; the evaporator is connected with the gas content; and the gas content is connected with an air suction port of the compressor. The system guarantees high-efficiency heat exchange of a heat exchanger, can also provide undercooling for refrigerants, guarantees the subcooling degree of the liquid, and can meet the requirement of liquidsupply in a certain long distance.

Description

technical field [0001] The invention relates to a supercooling oil cooler and a novel economizer screw machine refrigeration cycle system. Background technique [0002] The economizer screw refrigeration system is a commonly used energy-saving system at present. The refrigerant gas through the economizer enters the orifice in the middle of the screw compressor, so that this part of the refrigerant gas enters the compression chamber at the intermediate pressure, thereby realizing the gas delivery of the compressor. The increase can effectively increase the cooling capacity of the unit. There are two ways to replenish air in the middle: one-time throttling and two-time throttling refrigeration cycle systems, one-time throttling refrigeration systems (such as figure 1 ) The energy-saving effect depends on the temperature difference between the liquid in the heat exchanger and the medium-pressure gas, and the benefits obtained by using the economizer cannot be fully utilized, b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B40/02F25B1/047F04C29/04
Inventor 孟庆海秦海杰单永明
Owner PANASONIC APPLIANCES REFRIGERATION SYST DALIAN CO LTD
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