SU407156A1 - TWO-CHAMBER REFRIGERATOR - Google Patents

Description

one

This invention relates to the field of refrigeration.

Two-chamber refrigerators are known, containing low- and high-temperature chambers and an absorption refrigeration pump-free unit of diffusive action, operating, for example, with an aqueous solution of methylamine and having a generator with electric or gas heating, a reflux condenser for cleaning refrigerant vapors from absorbent nara, a refrigerant vapor condenser after a default, there is a factor. for the production of cold; and an absorber for absorbing refrigerant vapor after the evaporator.

In order to increase efficiency, in the proposed refrigerator, the condenser and tail section of the dephlegmator are designed as a generator of additional low-temperature absorption chiller of diffusion effect, working predominantly with methanol solution of lithium bromide, the evaporator of which is placed in chamber I low temperature, and the absorber and in the beginning section of the reflux matter were fitted. high-temperature absorption refrigeration mannp1y diffusion effect, evaporator to Torah together with the evaporator unit are arranged in the high-chamber of the refrigerator.

The drawing shows the scheme of the proposed refrigerator. The heat of the electric or gas heater 1 in the generator 2 and the thermosyphon 3 vaporizes the methylamine aqueous solution. In the reflux condenser 4, water vials are discharged from the steam mixture, which flows into the nyl-: the new part of the reflux condenser, and pure methylamine vapors enter the condenser 5, in which they liquefy and drain through the air cooler 6 and the steam subcooler 7 to the evaporator 8, where they evaporate, producing refrigerating effect. The resulting methylamine vapors from the source 8 through the pipe 9 and the steam non-cooler 7 are sent to the absorber 10, in which they are absorbed by the weak solution entering the absorber 10 through the heat exchanger 11 from the generator 2. In the initial part of the reflux condenser 4 there is a tube 12, but with which the meta-floor solution flows lithium bromide, which is the working body of the high-temperature diffusion of the 1st refrigerating machine, which has its own absorber 13, aerated cooler 14, a steam subcooler 15, an evaporator 16 and a heat exchanger 17. Final final a non-methanol solution occurs in the generator 18. Thus, to operate the high-temperature machine, a portion of the reflux heat generated in the reflux condenser 4 and the entire absorption heat generated in the absorber 10 are used. The evaporators 8 and 16 are placed in the high-temperature chamber of the refrigerator.

In the tail end of the reflux condenser 4 is placed a tube 19, but with a methanol solution of lithium bromide flowing, which is the working medium of the low-temperature maschine, which has its own absorber 20, air cooler 21, steam non-cooler 22, evaporator 23, heat exchanger 24 c and condenser 25.

The final evaporation of the methanol solution occurs in the generator 26 of the low-temperature machine. Thus, in this machine, the evaporation of the solution takes place at the expense of another part of the heat of reflux distilled in the tail section of the reflux condenser 4, and the heat of condensation formed in the condenser 5. The evaporator 23 of this machine is located in the low-temperature chamber of the refrigerator.

As a result of the indicated use of the heat of reflux, condensation and absorption, the efficiency of the refrigerator is significantly increased.

Subject invention

Two-chamber refrigerator containing low- and high-temperature chambers and an absorption refrigeration pump-free unit of diffusive action, operating, for example, on methylamine aqueous solution and having a generator with electric and gas heating, a reflux condenser to clean the refrigerant vapor from the vapor of the absorbent, a refrigerant vapor condenser after a dephlegmator, an evaporator for producing cold and an absorber for absorbing refrigerant vapor after the evaporator, characterized in that, in order to increase efficiency, the condenser and tail The reflux section is made in the form of a generator of an additional low-temperature absorption chilling machine of diffusion action, which mainly operates on a methanol solution of lithium bromide, whose evaporator is located in a low-temperature chamber, and the absorber and the initial section of the reflux condenser are made in the form of a generator of an additional high-temperature absorption absorption chiller, and the evaporator is in the form of a generator of the additional high-temperature absorption chiller, and the evaporator is in the form of a generator of the additional high-temperature absorption chiller, and the evaporator is in the form of a generator of the additional high-temperature absorption chiller, and the evaporator is in the form of a generator of the additional high-temperature absorption chiller, and the evaporator is in the form of a generator of the additional high-temperature absorption chiller; with integrated unit placed in a high-temperature chill chamber flax.