SU992952A1 - Heliabsorbtion thermic converter and its operational method - Google Patents

Description

(54)

HELIO ABSORPTION THERMAL TRANSFORMER AND HOW IT WORKS

The invention relates to refrigeration technology, and more specifically to solar absorption thermotransformers and methods for their operation.

There are known solar-absorber thermometers that contain a generator heated by solar energy, located in one case an absorber and a vaporizer, a heat exchanger-regenerator, fixed on lines of strong and weak solutions, and a storage part of a strong solution after the generator 1.

There is also known a method of operation realized in known solar absorbing thermotransformers, which is carried out by evaporating moisture from a thinnest weak solution by heat of solar radiation, followed by heating and. between the strong and weak solutions, the last of which is sent to you 20 and the accumulation of a part of the strong solution using it to compensate for the vapor of the agent in the period of insufficient intensity of the solar radium.

However, these thermotransformers and the way they work do not provide sufficient efficiency due to the fact that it requires the accumulation of a significant amount of a strong solution and a correspondingly large (and bulky storage capacity.

Zetsh iz etevi - increased efficiency. .

This goal is achieved by the fact that the thermotransformer additionally contains a sprinkler connected to the line of a strong solution after the generator, a water cooler and a collection of solk crystalline hydrates, in which the heat exchanger-regenerator of the irrigation type and water NSA cooling tower, are placed from top to bottom. and the sprinkler is located in the upper part of the accumulator.

Claims (2)

The method of operation is carried out in such a way that a weak solution evaporates two concentrations, at which crystalline hydrates of salt begin to fall out of it at ambient temperature, and the accumulation of 99 strong solutions is carried out in the form of crystalline hydrates by means of its successive cooling with a weak solution and water, while Inadequate intensity of solar radiation accumulated salt crystalline hydrates are dissolved with a scrubbing weak solution. The drawing shows schematically a thermal transformer in which the proposed method is carried out. The thermal analyzer contains a generator consisting of solar heater 1 and air desorber 2, placed in one housing 3, absorber 4 and evaporator 5, heat exchanger-regenerator 6, accumulator 7, sprinkler 8 connected to line 9 of a strong solution, water cooler U, collection of 11 crystalline hydrates. In addition, the drawing shows a pump 12 for pumping a weak solution, a line 13 supplying a weak solution to a heat exchanger-regenerator; 6 and a line 14 supplying a weak solution to the irrigator 8, valves 15 and 16, a check valve 17 and a float regulator 18 of a solution level B drive 7. I The operation of the thermal transformer is carried out as follows. During the daytime, refrigerant vapors (in (d)) formed in the evaporator 5 are absorbed under a deep vacuum into the absorber 4 with a salt-water solution, the concentration of which decreases. The weak solution from the absorber is pumped through the open valve 16 through the open valve 16, where it heats with and enters the solar heater 1, in which it is brought to a boiling state by solar energy. Next, the solution is evaporated in an air desorber 2 by blowing it out with atmospheric air. The inlet valve 17 enters the sprinkler 8, from which it flows as separate jets to the outer surface of the heat exchanger-regenerator and then to the surface of the water cooler 10. As a result of cooling, salt hydrates are deposited from the strong solution, which accumulate in the bottom of the collection 11 Liquid the saturated solution flows through the holes made in Collection 11 into the lower part of accumulator 7, from where it is fed through float regulator 18 to the absorber 4. At night, valve 16 is closed and valve 15 is open. In this case, the sludge solution from absorber 4 is pumped through pump 12 through irrigation 8 24 and salt crystals are washed in collection 11, and the concentration of the solution is increased by dissolving solid soya, while evaporation of the weak solution is carried out in air-stripping 2. The economic efficiency of the invention is expressed in a decrease capital assets for the manufacture and charging of a salt solution of a thermotransformer due to the smaller amount of filling solution and the reduction in the size of its storage device. Claim 1. Gel-absorptive thermotransformer containing generator, heated by solar energy, absorber and evaporator placed in one case. Heat exchanger-generator installed on lines of strong and weak solutions, and accumulator of part of strong solution after generator, characterized in that In order to increase its efficiency, it additionally contains a sprinkler connected to the line of the strong solution after the generator, a water cooler and a collection of crystalline hydrates of salt, in which has tesh1Oo & exchanger-regenerator-type evaporative cooler, and water, wherein the sprinkler is placed in the upper part of the accumulator. 2. A method of operating a solar absorption thermotransformer by evaporating moisture from a circulating weak solution with heat from the solar radiation, subsequent heat exchange between strong and weak solutions, the last of which is directed to evaporation, and accumulating a portion of the strong solution using it to absorb refrigerant vapors in a period of insufficient intensity solar radiation, characterized in that, in order to increase efficiency, the weak solution is evaporated to a concentration at which I surround at a temperature The crystalline salts of salt begin to fall out of the medium, and the accumulation of a strong solution is carried out in the form of crystalline hydrates by its successor. Cooling with a weak solution and water, while in the period of insufficient intensity of solar radiation, the accumulated crystalline hydrates of salt are diluted with a thinning solution. Sources of information taken into account in the examination 1. USSR author's certificate in application No. 2890453, cl. F 25 B 15/06 1980. r l l l / 14 l l