CN88211216U

CN88211216U - Refrigerator using solar energy

Info

Publication number: CN88211216U
Application number: CN 88211216
Authority: CN
Inventors: 乐根成
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-04-11
Filing date: 1988-04-11
Publication date: 1988-12-21

Abstract

The utility model provides a refrigerator using solar energy as power. The utility model is characterized in that activated carbon is adopted as solid sorbent, water is adopted as treatment fluid, and the refrigeration cycle can be realized by the theory that the activated carbon absorbs the water vapor when the activated carbon evaporates the steam under the irradiation and without irradiation. As the water absorbs a large amount of heat when changing into the gas, the surrounding medium can be cooled, and the cold gas can be produced and is stored in a form of the ice. The refrigerator using solar energy does not need the eletricity as the power, and can be used in the countryside and the place lack of the electric force and full of the solar ray.

Description

Refrigerator using solar energy

The utility model patent belongs to small stores, solar refrigerating device.

Ice chest, promptly the deepfreeze device is household electrical appliance commonly used in people's daily life, the exhausted major part of existing refrigerator is a refrigerator, all is made up of compressor, starting drive, evaporimeter, condenser etc.Although the refrigerating efficiency height, the cost height has noise and needs electric energy.Not long ago drop into the no electric energy refrigerator of producing in batches in the Hunan and pass through anhydrous CaCl and NH ₃Ringing freezes, although not electricity consumption can be used the cost height in the rural area of no alternating current supply.Simultaneously, need heat one hour every day, and consumption fuel has pollution.Produced a kind of solar energy refrigerator according to another Yugoslavia's " economic policy " in October, 1987 number reporting French a company, active carbon is a solid absorbent, and methyl alcohol is refrigerant, but shortcoming is the methanol prices height, and condensation temperature is low, and heat absorption is few during the methyl alcohol evaporation.The zeolite utility companies of Massachusetts, USA continent Na Dike is made a kind of zeolite solar energy refrigerator, and water is refrigerant, shortcoming, and zeolite and non-black-body can not directly absorb sunshine, and adsorpting water quantity are few.

The utility model is at above-mentioned shortcoming, proposed a kind ofly to make solid absorbent with active carbon, and water is the solar energy ice chest of refrigerant.Not only cost is low, and has utilized priceless solar energy, can be extensive use of in the place that lacks electric power.

Fig. 1 is the solar energy refrigerator structure chart, and 1 is solar thermal collector, and 2 is active carbon, 3 is Air-cooled Condenser, and 4 is return flexible hose, and 5 is refrigerator body, 6 is evaporimeter, and 7 is storagetank, and 8 is fruit and vegetable box, 9 is refrigerating chamber, 10 is refrigerator doors, and 11 is flesh of fish dish, and 12 is metal partion (metp), 13 is ice-cold chamber shelf, and 14 is ice making box.

Its course of work is: active carbon heat collector (1) is subjected to solar light irradiation by day, and maximum temperature can reach 120 ℃. Steam just begins to go out from the inner desorption of active carbon (2) in the time of about 60 ℃, Enter Air-cooled Condenser (3), outside dissipate heat, the water of liquefy flows in the evaporimeter (6) that is fixed in the refrigerator by return flexible hose (4) under action of gravitation. At night, active carbon is cooled to environment temperature, and the adsorbed water steam makes the aqueous water evaporation in the evaporimeter, thus absorption refrigeration, and the water around the evaporimeter has become ice. Daytime next day, ice began fusing, made refrigerator continue refrigeration and maintenance constant temperature.

Several theoretic data are arranged below:

0 ℃ steam heat-transmission is 2443.2KJ/kg

It is 334.2KJ/kg that 0 ℃ of water becomes the heat release of 0 ℃ of ice

The 1kg active carbon can adsorbed water steam be 0.2～0.3kg in theory

The 5kg active carbon can produce 8～12kg ice

If there is 10kg ice can reach refrigeration in 170 liters of refrigerators.

One of embodiment is: solar energy active carbon heat collector (1) shell is made by plastics or metallic plate, is stamped glass plate above, filling with insulation material between case body and the active carbon.Common coil condenser gets final product on the Air-cooled Condenser employing market.In the refrigerating box sheathing material identical with existing outer case of refrigerator material (being that heat-insulating material is arranged in the double-layer plastic) evaporimeter, storagetank and pipe-line system are arranged, evaporimeter is made by metal material.Refrigerating box divides two-layer up and down, and the upper strata temperature is high slightly, and lower floor's temperature is low slightly.Containing salt solution in the evaporimeter, can reduce freezing point, is general water in the storagetank.Solar energy refrigerator with one 170 liter is an example, needs with 4～8 kilograms of active carbons, and the salt solution in the evaporimeter is that 2～4 kilograms of water in the storagetank are 8～15 kilograms, the active carbon heat collector to be subjected to according to surface area be 0.5～1.2m ², can produce 6～15 kilograms in ice every day.This solar energy refrigerator, reserve temperature can be reduced to-2 ℃～-5 ℃, and be continuous more than three days behind the fine day, still can continue the refrigeration insulation even continue three days wet weather.

Claims

1, a kind of solar refrigerating device of being made up of solar energy absorption plant, tube connector and iced storage case etc. is characterized in that solar thermal collector (1) makes adsorbent by active carbon, tube connector is made up of coiled pipe (3) and liquid back pipe (4), has evaporimeter (6), storagetank (7) to constitute in the refrigerating box (5).

2, it is characterized in that according to the described solar refrigerating device of claim 1 solar thermal collector (1) housing is that plastics or metal material are made, heating surface is glass plate or other transparent materials that has having of higher-strength to bear temperature more than 200 ℃.

3, it is characterized in that the coiled pipe (3) of tube connector according to the described solar refrigerating device of claim 1, liquid back pipe (4) can also can be made with metal material with the soft plastic pipe.

4,, it is characterized in that evaporimeter (6), the storagetank (7) in the refrigerator adopts metal material or anti-aging hard plastics to make according to the described solar refrigerating device of claim 1.

5, it is characterized in that according to claim 1,2,3,4 described solar energy refrigeration devices circulating fluid is a low concentration salt solution, solar thermal collector (1) and tube connector (3), (4) and refrigerating box (5) are for being tightly connected.