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Cold-producing medium loop

A refrigerant circuit and refrigerant technology, applied in the direction of refrigerators, refrigeration and liquefaction, lighting and heating equipment, etc., can solve the problems of space efficiency deterioration and achieve the effect of preventing pressure rise

Inactive Publication Date: 2009-08-19
FUJI ELECTRIC RETAIL SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In conventional gas-liquid separators, space efficiency is poor because it is formed in a tank shape with a volume for temporarily storing mixed refrigerant
In particular, when evaporators are respectively arranged in a plurality of commodity storages as in the above-mentioned automatic vending machines, and each evaporator operates separately, the circulation amount of the refrigerant varies depending on the number of operating evaporators. Therefore, In order to prevent liquid compression in the compressor, it is necessary to enlarge the tank

Method used

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Embodiment Construction

[0106] Next, preferred embodiments of the refrigerant circuit of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited by these embodiments.

[0107] First, a vending machine suitable for use with the refrigerant circuit of the present invention will be described. figure 1 It is a perspective view showing an open internal state of an automatic vending machine to which the refrigerant circuit of the present invention is applied. figure 2 yes figure 1 Front view of the vending machine shown in .

[0108] The vending machines shown here are used to sell products such as canned beverages or PET bottled beverages, such as figure 1 Shown includes a main body box 1 , an inner door 2 and a main door 3 .

[0109] As for the main body box 1, it is firmly constructed by combining a plurality of steel plates appropriately, and becomes a rectangle with an open front. Inside the main body box, three commodity st...

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PUM

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Abstract

The invention discloses a cooling agent circuit, which is characterized by the following: comprising compressor of compression refrigerating agent, gas cooler, evaporator to evaporate cooling agent, ejector and inner heat exchanger; depressing high pressure cooling agent from gas cooler; absorbing in the low pressure cooling agent from the evaporator; mixing; increasing the pressure for mixed cooling agent; discharging with the ejector; separating the mixed cooling agent to gas phase cooling agent and liquid phase cooling agent; turning the gas phase back to the compressor; providing the liquid phase cooling agent to the gas-liquid separator of the evaporator; paralleling the multiple evaporator; connecting multiple strips of cooling agent cycling passage through switch valve; proceeding heat exchange for the high pressure cooling agent and the low pressure cooling agent with the inner heat exchanger. This invention can prevent increasing of high pressure side, which can make the cycling state to reach optimum.

Description

technical field [0001] The present invention relates to refrigerant circuits, and more particularly to refrigerant circuits using ejectors. Background technique [0002] Conventionally, a refrigeration cycle circuit has been disclosed as a refrigerant circuit. The refrigerating cycle loop is connected to the compressor, the condenser, the two-phase flow ejector and the gas-liquid separator in sequence, between the suction port of the ejector and the refrigerant liquid retention part of the gas-liquid separator, through the throttling device An evaporator is provided. For this refrigerating cycle, the ejector circulates the low-pressure refrigerant through the suction effect generated by the injection energy (driving flow) of the high-pressure refrigerant from the condenser. The amount of work (for example, see Patent Document 1). [0003] [Patent Document 1] Japanese Patent Laid-Open No. 57-129360 [0004] The ejector is composed of a nozzle part, a mixing part and a dif...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B9/08
Inventor 久保山公道土屋敏章滝口浩司
Owner FUJI ELECTRIC RETAIL SYST CO LTD