CN2425329Y - Refrigerating plant with parallel capillary - Google Patents

Abstract

The utility model describes a refrigerating plant with parallel capillaries, which comprises a compressor, a condenser, a dry filter, a parallel capillary plant and a freezing and cold storing evaporator, wherein the parallel capillary plant is composed of a various way solenoid valve and a plurality of capillaries. After the utility model is adopted, through the control of a temperature controller, the various way solenoid valve can respectively open and close each exit according to the preset temperature. The capillaries are switched according to the high and low sequence of the temperature at the end ports of the capillaries, and the evaporation temperature also falls step by step following the switch of each capillary. Thus, the relative temperature difference is decreased, the purposes that the refrigerating efficiency is raised and the total energy consumption is reduced are obtained.

Description

The refrigerating plant of band parallel capillary tube

The utility model relates to a kind of refrigerating plant that is used for the band parallel capillary tube of refrigerator.

The restricting element of refrigeration system of refrigerator generally is made of a capillary at present; during startup; the port temperature that this capillary and refrigerating chamber or refrigerating chamber join is set at the design temperature that is lower than refrigerating chamber; and the temperature difference between the shutdown temperature is bigger; under this situation; its power consumption is bigger, and refrigerating efficiency is lower.Press refrigeration principle, when total temperature difference equates,, then can reduce its total power consumption, improve refrigerating efficiency, therefore, can satisfy above-mentioned requirements with changing composition pattern capillaceous if adopt multistage cooling.

The purpose of this utility model is that a kind of refrigerating plant with parallel capillary tube will be provided, and makes temperature become multistage decline, thereby reduces its total power consumption, improves refrigerating efficiency.

For achieving the above object, the technical solution of the utility model is as follows:

This refrigerating plant comprises compressor, condenser, device for drying and filtering, parallel capillary tube device, freezing and refrigeration evaporator, it is characterized in that:

A, parallel capillary tube device are made up of various way solenoid valve, pipeline and many capillaries;

B, each front port capillaceous join with the outlet of various way solenoid valve is corresponding one by one respectively, and rear port and freezing and refrigeration evaporator join;

C, various way solenoid valve import and device for drying and filtering join.

After adopting this utility model, control by temperature controller, various way solenoid valve can be according to its design temperature, open and close each outlet respectively, height by the capillary port temperature switches capillary in proper order, and evaporating temperature also descends step by step with each switching capillaceous, thereby has reduced relative temperature difference, reach the raising refrigerating efficiency, reduce the purpose of total energy consumption.

Below in conjunction with embodiment and accompanying drawing the utility model is further described.

Fig. 1 secondary cooling schematic diagram of refrigerating that to be the utility model implement on direct-cooled, a cold hybrid refrigerator.

Referring to accompanying drawing, compressor 1, condenser 2, device for drying and filtering 3, secondary parallel capillary tube device 4, heat exchanger 5, refrigerating evaporator 6 and refrigeration evaporator 7 and pipeline 13 are formed a kind of refrigeration cycle, when work, at first open the outlet 9 of two-position three way magnetic valve 8, open capillary 10, its port temperature is reached under the turn-on temperature, on the refrigerating chamber design temperature, when cold compartment of refrigerator and refrigerating chamber under its evaporimeter effect, after reaching a certain design temperature, close the outlet 9 of magnetic valve 8, open outlet 11, open capillary 12, make its port temperature to the refrigerating chamber design temperature, thereby guarantee that refrigeration and refrigerating chamber reach its institute's palpus temperature.

Should be noted that the utility model not only is adapted to the mixed cold type refrigerator, also be adapted to the refrigeration plant of direct-cooling type and indirect cooling refrigerator and other types, these conversion all should drop within the protection domain of the present utility model.

Claims (1)

1, a kind of refrigerating plant with parallel capillary tube comprises compressor, condenser, device for drying and filtering, parallel capillary tube device, freezing and refrigeration evaporator, it is characterized in that:

A, parallel capillary tube device are made up of various way solenoid valve, pipeline and many capillaries;

B, each front port capillaceous join with the outlet of various way solenoid valve is corresponding one by one respectively, and rear port and refrigeration and refrigerating evaporator join;

C, various way solenoid valve import and device for drying and filtering join.

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