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Capacity adjustable vortex compressor refrigeration system with mediate loop installed with ejector

A technology of scroll compressors and intermediate circuits, which is applied in the direction of irreversible cycle compressors, compressors, refrigerators, etc., to achieve the effects of improving adaptability, improving thermodynamic perfection, and reducing irreversible losses

Inactive Publication Date: 2009-07-01
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the measures of setting the connection port of the discharge pipe and the low pressure side at the front or rear of the evaporator have their own advantages and disadvantages

Method used

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  • Capacity adjustable vortex compressor refrigeration system with mediate loop installed with ejector
  • Capacity adjustable vortex compressor refrigeration system with mediate loop installed with ejector
  • Capacity adjustable vortex compressor refrigeration system with mediate loop installed with ejector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] figure 1 It is a structural schematic diagram of a scroll compressor refrigeration system using an ejector and an intermediate heat exchanger for refrigerant leakage. The system includes a refrigerant primary circuit 100 and a refrigerant escape system. The main refrigerant circuit 100 is composed of a scroll compressor 101 with a refrigerant discharge port 105 , a condenser 102 , a system expansion device 103 and an evaporator 104 connected in sequence. The refrigerant leakage system includes an intermediate heat exchanger 202, a refrigerant leakage working circuit 310 and a refrigerant refrigeration leakage injection circuit 300, wherein the intermediate heat exchanger 202 is arranged on the main refrigerant circuit 100 of the system from the condenser 102 to On the pipeline between the system expansion devices 103, one end of the refrigerant discharge working circuit 310 is connected to the outlet pipeline of the condenser 102, and the other end sequentially passes ...

Embodiment 2

[0031] figure 2 It is a structural schematic diagram of a scroll compressor refrigeration system using an ejector and a flash tank for refrigerant discharge. The system includes a refrigerant primary circuit 100 and a refrigerant escape system. The main refrigerant circuit 100 is composed of a scroll compressor 101 with a refrigerant discharge port 105 , a condenser 102 , a system expansion device 103 and an evaporator 104 connected in sequence. The refrigerant discharge system includes a discharge expansion device 311, a flash tank 205, a refrigerant discharge working circuit 310 and a refrigerant refrigeration discharge injection circuit 300, wherein the discharge expansion device 311 and the flash tank 205 are sequentially arranged in On the pipeline from the outlet of the condenser 102 to the inlet of the system expansion device 103 on the main refrigerant circuit 100 of the system, one end of the refrigerant discharge working circuit 310 is connected to the flash tank 2...

Embodiment 3

[0035] image 3It is a structural schematic diagram of a scroll compressor refrigeration system using an ejector and an intermediate heat exchanger for refrigerant discharge and injection. The system includes a refrigerant main circuit 100 , a refrigerant discharge system and a refrigerant injection circuit 200 . The main refrigerant circuit 100 is composed of a scroll compressor 101 with a refrigerant discharge port 105 , a condenser 102 , a system expansion device 103 and an evaporator 104 connected in sequence. The refrigerant leakage system includes an intermediate heat exchanger 202, a refrigerant leakage working circuit 310 and a refrigerant refrigeration leakage injection circuit 300, wherein the intermediate heat exchanger 202 is arranged on the main refrigerant circuit 100 of the system from the condenser 102 to On the pipeline between the system expansion devices 103, one end of the refrigerant discharge working circuit 310 is connected to the outlet pipeline of the...

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Abstract

The utility model relates to a capacity-adjustable scroll compressor refrigeration system provided with an ejector on an intermediate circuit, belonging to the field of refrigeration and air conditioning. This technology has an intermediate pressure circuit between the outlet of the system condenser and the inlet of the compressor, and an ejector on the circuit. This system utilizes the pressure difference between the intermediate pressure circuit and the suction port of the compressor to use the ejector to eject the Compress the refrigerant that leaks from the middle section to the low-pressure side, thereby strengthening the leaking function of the refrigerant in the system and improving the unloading capacity of the scroll compressor. At the same time, the combination of enhanced refrigerant leakage technology and refrigerant injection technology greatly improves the variable capacity of the scroll compressor refrigeration system in both directions. This technology can be used in refrigeration / heat pump systems with scroll compressors in the field of air conditioning and refrigeration. It can effectively change the efficiency, system capacity and performance of the compressors, so that the system can work efficiently in a wide range of working conditions, thereby improving the system capacity. Applicability under varying operating conditions.

Description

technical field [0001] The invention relates to a refrigeration system with a scroll compressor, which belongs to the field of refrigeration and air conditioning. More specifically, it relates to a system form and a control method for changing the capacity and performance of a refrigeration system containing a scroll compressor through leakage or / and injection of refrigerant. Background technique [0002] A scroll compressor is a type of compressor used in refrigeration and air conditioning. Due to the advantages of high efficiency and low noise, scroll compressors are widely used in small and medium capacity refrigeration and air conditioning systems. The scroll compressor has a pair of symmetrically arranged scroll disks (stationary disk and moving disk), the static disk is fixed on the body of the compressor, and the moving disk performs circular translation around the static disk within a certain range. At the initial stage of compression, the low-pressure refrigerant ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B1/04F25B9/08F25B41/00
CPCF25B2400/23F25B2400/13F25B1/04F25B2341/0011
Inventor 王宝龙石文星李先庭韩林俊
Owner TSINGHUA UNIV
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