SU1040293A1 - Solar-powered adsorption batch-action refrigerator - Google Patents

Abstract

SALTY ADSORPTION HO-, PERIODIC ACTION LADDER, containing in series connected generator-adsorber of the type hot box, condenser, heat-insulated receiver and evaporator in the refrigerating chamber connected to the receiver through an inlet and outlet hose and a symphonic unit. , - in order to increase efficiency by reducing the loss of cold, the refrigerator further comprises a check valve connected between the adsorbing generator and the condenser, and a spring-loaded bellows valve, the inlet of which th d connectable to the outlet pipe union of evaporators 5S L, and the output - to the generator-absorber. (L to about OO

Description

The invention relates to refrigeration equipment, and more specifically to solar adsorption refrigerators of periodic action. Solar periodical adsorption refrigerators are known that contain a series-connected generator-adsorber such as a hot box, a condenser, a thermally insulated receiver and an evaporator placed in a refrigerating chamber connected to a receiver through the inlet and outlet nozzles. A disadvantage is the known refrigerators. in the receiver during the absorption process. The purpose of the invention is to increase efficiency. This goal is achieved by the fact that a solar adsorption cooler of periodic action, containing a series-connected adsorption generator such as a hot box condenser, thermally insulated receiver and an evaporator placed in the cooling chamber, connected to the receiver through the inlet and outlet nozzles, additionally contains a reverse a valve connected between the adsorber generator and a condenser and a spring-loaded bellows valve, the inlet of which is connected to the outlet of the evaporator body, and the output to the generator yell-adsorber. The drawing shows schematically the proposed refrigerator. The refrigerator contains a generator-ad Soyer 1 type hot box, a condenser 2, a thermally insulated receiver 3, an evaporator 5 placed in the refrigerating chamber 4 with an inlet pipe 6 and an outlet 7, a check valve B, a bellows valve 9 with a spring 10 and a cold battery 11 . The refrigerator works as follows. At solar time, the adsorbent in the generator-adsorber is heated by solar energy, and their refrigerant vapors under high pressure are generated under high pressure. The bellows valve 9 at this time is closed due to the high pressure in it, and the check valve 8 is open. High-pressure refrigerant vapor is condensed in condenser 2 and liquid refrigerant is drained into receiver 3 and evaporator 5. At the end of the adsorbent heating, a significant amount of liquid accumulates in receiver 3. After entering the sun, the absorber starts to cool and the pressure of the refrigerant drops. At a given low pressure in the generator-generator, the check valve 8 is closed and the bellows valve 9 opens. At the same time, due to the heat influx into the refrigerating chamber 4, the liquid refrigerant boils in the evaporator at low pressure while simultaneously producing cold. The resulting low pressure refrigerant vapor flows through the bellows valve 9 to the adsorber generator, where it is absorbed by the adsorbent. The cold accumulator 11, which is located in the cold 11, is eutectic. The solution freezes and maintains the required temperature in chamber 4 during the period before the next cold production cycle. . Economic efficiency is reflected in an increase in the cooling capacity of the refrigerator due to a decrease in heat leakage to the receiver during the production of cold. The cooling capacity of the proposed refrigerator is increased by 7%.

Claims (1)

SUNNY ADSORPTION ΧΟ—, PERIODIC ACTION LODIER, containing a * hotbox type generator-adsorber ¹ connected in series, a condenser, a heat-insulated receiver and an evaporator located in the refrigerator, connected to the receiver through the inlet and outlet pipes, which differs in that in order to increase efficiency by reducing cold losses, the refrigerator further comprises a check valve, is included. between the adsorber-generator and the condenser, and a spring-loaded bellows valve, the inlet of which is connected, and the evaporated output is connected to the outlet pipe to the AXsorber generator. t ny valve 8, bellows valve 9 with a spring 10 and a battery 11 cold. The refrigerator operates as follows. In the sunny time of the day, the adsorbent in the adsorber generator 1 is heated by solar energy, their blacks are released under high pressure refrigerant vapor. The bellows valve 9 at this time is closed due to the high I pressure in it, and the check valve 8 is open. The high pressure refrigerant vapor 'is condensed in the condenser 2 and the liquid refrigerant is discharged into the receiver 3 and the evaporator 5. At the end of the adsorbent heating, a significant amount of liquid accumulates in the receiver 3. After the generator sets in, the absorber starts to cool and the refrigerant pressure drops in it. At a given low pressure in the adsorber, the check valve 8 closes and the bellows valve 9 opens. At the same time, due to heat influx into the refrigeration chamber 4, the liquid refrigerant boils in the evaporator at low pressure with simultaneous production of cold. The resulting low pressure refrigerant vapor flows through the bellows valve 9 to the adsorber generator, where it is absorbed by the adsorbent. The eutectic solution in the cold accumulator 11 freezes and maintains the required temperature in the chamber 4 for the period up to 9 of the next cold production cycle. Economic efficiency is expressed in an increase in the refrigerating capacity of the refrigerator due to a decrease in heat influx to the receiver during the cold production process located in the refrigeration chamber. The cooling capacity of the proposed refrigerator is increased by 7%.