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Refrigerator with double capillary tubes and multiple refrigerating loops

A technology of refrigeration circuit and capillary tube, which is applied in the field of refrigerators with double capillary tubes and multiple refrigeration circuits, can solve the problems of low refrigeration efficiency and achieve the effects of increasing refrigerant density, energy efficiency ratio and evaporation temperature

Inactive Publication Date: 2010-10-20
凌建军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of low cooling efficiency of multi-refrigeration circuit refrigerators in winter, two capillary tubes are connected in parallel at the inlet end of the evaporator in the refrigerator compartment and the inlet end of the evaporator in the freezer compartment, that is, one more capillary tube is added on the basis of the existing standard capillary tube. A shorter capillary (or a capillary with a larger inner diameter) can greatly improve the power saving effect of the refrigerator in winter

Method used

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  • Refrigerator with double capillary tubes and multiple refrigerating loops
  • Refrigerator with double capillary tubes and multiple refrigerating loops
  • Refrigerator with double capillary tubes and multiple refrigerating loops

Examples

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no. 1 approach

[0032] image 3 It is a schematic diagram of a refrigerator with double capillary tubes and multiple refrigeration circuits in the present invention.

[0033] Such as image 3 As shown, a refrigerator with double capillary tubes and multiple refrigeration circuits of the present invention includes a compressor 1, a compressor exhaust pipe 2, a condenser 3, a dry filter 4, a first two-position three-way solenoid valve 5, a second two-position Three-way solenoid valve 501, third two-position three-way solenoid valve 502, first capillary 6, third capillary 8, fourth capillary 601, sixth capillary 801, refrigerating chamber evaporator 9, freezing chamber evaporator 11, refrigeration- Freezing connection pipe 12, air return pipe 14, program controller (not shown).

[0034] One end of the compressor exhaust pipe 2 is connected to the compressor 1, and the other end is connected to the condenser 3; one end of the dry filter 4 is connected to the condenser 3, and the other end is co...

no. 2 approach

[0043] Figure 4 It is a schematic diagram of the second embodiment of a refrigerator with double capillary tubes and multiple refrigeration circuits in the present invention. The second embodiment is basically the same as the first embodiment, except that the variable temperature chamber evaporator 10, the variable temperature-freezing connecting pipe 13, the fourth two-position three-way solenoid valve 503, the fifth two-position three-way solenoid valve 504, and the second two-position three-way solenoid valve 504 are added. Capillary 7 and fifth capillary 701.

[0044] ① When the refrigerator and freezer are to be refrigerated at the same time, if the temperature detected by the ambient temperature sensor is high, the first two-position three-way solenoid valve 5, the second two-position three-way solenoid valve 501 and the fourth two-position solenoid valve 501 are activated. The three-way solenoid valve 503 is used to connect the first capillary 6 (longer capillary) wit...

no. 3 approach

[0048] Figure 5 It is a schematic diagram of a third embodiment of a refrigerator with double capillary tubes and multiple refrigeration circuits in the present invention. The third embodiment is basically the same as the first embodiment except that a condenser fan 15 is added.

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Abstract

The invention discloses a refrigerator with double capillary tubes and multiple refrigerating loops, which comprises a compressor, a compressor exhaust pipe, a condenser, a dry filter, a multi-station multi-way electromagnetic valve, capillary tubes, a refrigerating chamber evaporator, a freezing chamber evaporator, a refrigerating-freezing connecting pipe, a compressor air return pipe, a condenser fan and a program controller, wherein the inlet end of the freezing chamber evaporator is connected in parallel with at least two capillary tubes, the inlet end of the refrigerating chamber evaporator is connected in parallel with at least two capillary tubes, and the condenser fan is arranged nearby the condenser; because the shorter capillary tubes can be selected in winter, the evaporation temperature can be improved, the refrigerant density of a suction port of the compressor can be improved, and then the energy efficiency ratio of the compressor of the refrigerator can be greatly improved during running in winter; and the energy efficiency ratio can be improved during running at the standard environmental temperature of 25 DEGC, and a freezing chamber reaching a set temperature in summer can be ensured.

Description

Technical field [0001] The invention relates to a refrigerator, in particular to a refrigerator with double capillary tubes and multiple refrigeration circuits. Background technique [0002] Refrigerators have entered thousands of households, many shopping malls and many laboratories because of their ability to keep objects fresh at low temperatures, bringing great convenience to human life. Because the refrigerator has to be in working condition for a long time, the refrigerator has become the most power-consuming household appliance in the family. Based on the daily power consumption of each refrigerator of 0.70 kWh, there are 1 billion refrigerators in the world, and the world consumes 255 billion kWh of electricity every year, 360 grams of coal per kWh, equivalent to 91.98 million tons of coal consumption, which is equivalent to emitting 15636 carbon dioxide to the earth. tons. How to improve the energy-saving performance of refrigerators is an important issue before u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D11/02F25B41/06F25B5/00F25D29/00
CPCF25B2500/31
Inventor 凌建军黄鹂
Owner 凌建军
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