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Economized refrigeration system

一种制冷系统、制冷剂的技术，应用在制冷机、制冷组件、制冷和液化等方向，能够解决影响系统性能、运行条件影响节约器性能等问题

Active Publication Date: 2009-11-18
JOHNSON CONTROLS TYCO IP HLDG LLP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Off-design operating conditions affect the performance of the economizer and thus the overall system performance

Method used

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  • Economized refrigeration system
  • Economized refrigeration system

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0021] An economizer refrigeration system consists of two compressor systems: a main compressor to process the refrigerant flow through the main refrigeration loop, and an auxiliary compressor to compress the gaseous refrigerant leaving the economizer to condenser pressure machine. By using an auxiliary compressor, the auxiliary compressor can be controlled independently of the main compressor. The discharge pressure of the auxiliary compressor may be matched to the discharge pressure of the refrigerant leaving the main compressor.

[0022] figure 1 An economizer refrigeration system 10 is diagrammatically shown. As shown, system 10 begins with condenser 12 where high pressure gas refrigerant is cooled and condensed into high pressure liquid refrigerant. Optionally, condenser 12 can also be used for subcooling, as in image 3 as shown in, image 3 Qualitatively shows the pressure-enthalpy diagram for an economical refrigeration system.

[0023] Condenser 12 is fluidly co...

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Abstract

An economized refrigeration system includes a main refrigerant circuit having a condenser (12), an evaporator (16), an economizer (14), an expansion device (32) intermediate the condenser and the economizer, and a main-compressor (18) fluidly connected by a main refrigerant line (24). The system also includes an economized refrigerant circuit including an auxiliary compressor system (20) and an auxiliary refrigerant line (22) fluidly connecting the economizer (14) to the auxiliary compressor system (20) and fluidly connecting the main refrigerant line (24) to the auxiliary compressor (20) at a location intermediate the main compressor system (18) and the condenser (12). The auxiliary compressor system (20) is independently controllable with respect to the main compressor system (18).

Description

[0001] Cross references to related patent applications [0002] This application claims priority to US Provisional Patent Application No. 60 / 862,299, filed October 26, 2006, which is hereby incorporated by reference in its entirety. Background technique [0003] The present application relates generally to economized refrigeration systems. More specifically, the present application relates to an economizer refrigeration system including an auxiliary compressor dedicated to an economizer flow. [0004] In refrigeration systems, refrigerant gas is compressed by a compressor and conveyed to a condenser where it exchanges heat with another fluid, such as ambient air. From the condenser, the pressurized liquid refrigerant passes through an expansion device and then to an evaporator where the refrigerant exchanges heat with another fluid that is used to cool the environment. The refrigerant returns from the evaporator to the compressor, and the cycle repeats. [0005] Economizer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B49/02F25B41/00
CPCF25B2400/13F25B1/04F25B49/022F25B2600/2513F25B2600/2509F25B41/00F25B2400/075F25B2400/0751F25B1/10F25B49/02F25B2400/0401F25B2400/0409
Inventor S·T·萨默S·H·史密斯J·F·贾奇
Owner JOHNSON CONTROLS TYCO IP HLDG LLP