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Turbine refrigerator

A technology of turbo refrigerator and turbo compressor, which is applied in the field of expansion mechanism, can solve the problems of inability to perform high-precision liquid level control, poor controllability of electric expansion valve, and increased cost, so as to achieve a good operating area and solve control response Reduction of performance and the effect of securing control responsiveness

Inactive Publication Date: 2015-09-30
EBARA REFRIGERATION EQUIP & SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] (1) There is a poor control area of ​​the electric expansion valve, and high-precision liquid level control cannot be performed
[0014] (2) When a plurality of large-diameter expansion valves and small-diameter expansion valves are installed in parallel to ensure controllability, there is a problem of cost increase

Method used

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Examples

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Embodiment Construction

[0034] Below, refer to Figure 1 ~ Figure 5 An embodiment of the turbo refrigerator according to the present invention will be described. in Figure 1 ~ Figure 5 Here, the same or equivalent components are denoted by the same reference numerals, and repeated descriptions are omitted.

[0035] figure 1 It is a schematic diagram showing the first embodiment of the turbo refrigerator according to the present invention. Such as figure 1 As shown, the turbo refrigerator is equipped with: a turbo compressor 1, which compresses the refrigerant; a condenser 2, which uses cooling water (cooling fluid) to cool and condense the compressed refrigerant gas; and an evaporator 3, It obtains heat from the cold water (cooled fluid) to evaporate the refrigerant to exert its cooling effect; and the economizer 4 as an intercooler is arranged between the condenser 2 and the evaporator 3, and the turbo refrigeration mechanism uses the refrigerant The circulating refrigerant pipe 5 connects the ab...

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PUM

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Abstract

A turbine refrigerator can prevent controlling property drop of an electric expansion valve, and can prevent cost rising caused by arranging more expansion valves; the turbine refrigerator comprises the following elements: an evaporator obtaining heat energy from a cooled fluid so as to evaporate a refrigeration agent, thus having refrigeration effect; a multi-stage turbine compressor using a multi-stage impeller to compress the refrigeration agent; a condenser using cooling fluid to cool off and condense compressed refrigeration agent air; an energy saver serving as an intercooler, so part of condensed liquid refrigeration agent fluid is evaporated and supplied to a middle portion of the multi-stage compressor of the multi-stage turbine refrigerator; the refrigeration agent is led to a refrigeration agent tube of the energy saver from the condenser; a flow control valve and the expansion valves are arranged according to orders.

Description

Technical field [0001] The present invention relates to a turbo refrigerator, in particular to an expansion mechanism of the turbo refrigerator. Background technique [0002] Conventionally, turbo refrigerators used in refrigeration and air-conditioning equipment are composed of a closed system filled with refrigerant. The turbo refrigeration mechanism uses refrigerant piping to connect the following components: evaporator, which obtains heat from cold water (cooled fluid) The refrigerant evaporates to exert a cooling effect; the compressor compresses the refrigerant gas evaporated in the evaporator to turn it into a high-pressure refrigerant gas; the condenser uses cooling water (cooling fluid) for high pressure The refrigerant gas is cooled and condensed; and an expansion valve (expansion mechanism) that decompresses and expands the condensed refrigerant. Furthermore, when a multi-stage compressor that compresses refrigerant gas in multiple stages with a multi-stage impeller i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B1/10F25B41/06F25B49/02F25B41/31
CPCF25B1/10F25B49/02F25B2600/2513F25B41/34F25B41/31Y02B30/70
Inventor 远藤哲也
Owner EBARA REFRIGERATION EQUIP & SYST CO LTD
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