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Annular heat pipe type cold accumulation refrigerator

A technology of annular heat pipes and refrigerators, which is applied in household refrigerators, coolers, household refrigeration devices, etc., and can solve the problems that the temperature of the freezer and refrigerator cannot be controlled artificially, the speed of the phase change process of phase change materials is unreasonable, and the temperature distribution is uneven. , to achieve the effects of reducing the peak-to-valley difference, saving energy, and solving large temperature fluctuations

Inactive Publication Date: 2015-01-21
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problems in the practical application of cold storage refrigerators that the temperature of the freezing and refrigerating chamber cannot be controlled artificially, the temperature distribution is uneven, and the speed of the phase change process of the phase change material is unreasonable, and also to solve the defects of large temperature fluctuations in the box of the traditional non-inverter refrigerator, the present invention Provide a ring-shaped heat pipe cold storage refrigerator that is applied to power grid "peak-shaving and valley-filling" and precise temperature control through structural improvement

Method used

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  • Annular heat pipe type cold accumulation refrigerator
  • Annular heat pipe type cold accumulation refrigerator

Examples

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Embodiment 1

[0022] See figure 1 , The annular heat pipe type cold storage refrigerator includes a refrigerator box, which is mainly divided into a refrigerator compartment 10 and a freezer compartment 11. It also includes a compressor 1, an evaporator 4, a capillary tube 3, and a condenser 2, of which the compressor 1, capillary tube 3 and The condensers are all located outside the insulation layer of the box.

[0023] A cold storage chamber 9 is provided on the top of the box. The cold storage chamber 9 is filled with a phase change cold storage material 12, and the phase change temperature of the phase change cold storage material 12 is -20 to -30°C. The evaporator 4 is located in the phase change cold storage material in the cold storage chamber.

[0024] The heat pipe condensing section 5 of an annular heat pipe is located in the phase change cold storage material 12 in the cold storage chamber 9. The evaporation section of the annular heat pipe is divided into the heat pipe refrigerating ...

Embodiment 2

[0029] See figure 2 , Including two annular heat pipes, the condensation section of the two annular heat pipes are both located in the phase change cold storage material 12 of the cold storage chamber 9. The heat pipe refrigerating compartment evaporation section 6 of one annular heat pipe is located in the refrigerating compartment 10, and the heat pipe freezing compartment evaporating section 7 of the other annular heat pipe is located in the freezing compartment 11. A temperature control valve 8 is installed on each of the two annular heat pipes.

[0030] Other structures are the same as in Example 1.

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Abstract

The invention relates to an annular heat pipe type cold accumulation refrigerator. The refrigerator comprises a refrigerator body, a compressor, an evaporator, a capillary pipe, a condenser and the like, wherein a cold accumulation chamber is further arranged on the refrigerator body and is filled with phase-change cold accumulation materials in an encapsulated mode, the evaporator is located in the phase-change cold accumulation materials in the cold accumulation chamber, the condensation sections of one or more annular heat pipes are located in the phase-change cold accumulation materials in the cold accumulation chamber, a part of the evaporation section of each annular heat pipe is located in a cold storage chamber, and the other part of the evaporation section of each annular heat pipe is located in a refrigeration chamber. According to the refrigerator, the temperature of the refrigeration chamber and the temperature of the cold storage chamber are kept within the national standard range, and the annular heat pipes start to operate when the temperature of the refrigeration chamber and the temperature of the cold storage chamber are higher than set values and stop operating when the temperature of the refrigeration chamber and the temperature of the cold storage chamber are lower than the set values. Cold energy is stored during the valley electricity period, electric energy is not consumed during the peak electricity period, and stored cold energy is released all through the day. The start-stop frequency of cold releasing of the annular heat pipes is far higher than that of working of the compressor, and then fluctuation of the temperature of the refrigeration chamber and the temperature of the cold storage chamber is controlled accurately.

Description

Technical field [0001] The invention belongs to the technical field of household appliances refrigerators, and specifically relates to a cold storage refrigerator. Background technique [0002] In today's domestic power supply shortage and the widening peak-to-valley gap between the grids, the power sector has introduced a "time-of-use price", which increases the price of electricity during the day and decreases the price of electricity at night, driving part of the power load to the trough of electricity consumption. The “peak-shaving and valley-filling” approach digests the power load of the grid during peak hours. On this basis, some theoretical solutions have been explored in the refrigerator field that use phase change materials to store cold during the valley period and release the cold during the peak period. A cold storage refrigerator applied to "time-of-use electricity prices" does not take into account the actual temperature requirements of the refrigerator freezer co...

Claims

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Application Information

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IPC IPC(8): F25D11/02F25D19/00
CPCF25D11/02F25D19/003F25D11/025
Inventor 裴刚曹静宇张鹏宇李晶杨明季杰
Owner UNIV OF SCI & TECH OF CHINA
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