SU1285271A1 - Regenerative heat exchanger - Google Patents

Abstract

Invention m. B. used in fuel-burning installations and allows to increase their efficiency by deeper utilization of the heat of the heating medium when using water as a heated medium. The water heater is made in the form of sections of inclined thermosyphons with condensation sections. The plots are located in the compartment of the heating medium after the rotor 2 along the flow. In the compartment 5 of the heated medium above the sprayer 6, a condenser 8 is placed, and between them there is a bump stop 9 and a separator 10. The water-heating chambers are connected to each other in series, the first input is connected to the outlet of the condenser 8, and the last outlet is connected to the sprayer 6. In the condenser 8 cooling water heat of vaporization is released, which increases its temperature to 90 ° C. The bump 9 serves to return the water droplets, which makes it possible to obtain a more dispersed atomization of water. 3 il. § (L

Description

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The invention relates to heat exchange engineering and can be used in fuel-burning installations.

The purpose of the invention is to increase operational efficiency by deeper utilization of the heat of the heating medium when water is used as the heated medium.

FIG. 1 shows a regenerative heat exchanger; general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 - section BB in FIG. one.

Regenerative heat exchanger includes a housing 1 with a rotor 2 with a nozzle, divided by a partition 3 into compartments 4 and 5 of the heating medium (gases) and the heated medium (water), respectively. In the compartment 5 above the rotor 2, a water dispenser 6 is installed with dispensing holes directed toward the latter. The heat exchanger also contains a water heater 7, a condenser 8, a baffle 9 and a separator 10, the first of which is made as sections 11 and 12 of inclined thermosyphons with condensation sections 13, enclosed in water heater chambers 14 and 15 located outside the case 1, and evaporating sections 16 placed in the compartment 4 of the heating medium downstream of the rotor 2, the hot water chambers 14 and 15 are connected in series with each other by the nozzle 17, the outlet 15 of the chamber 15 is connected to the spray gun 6 and the consumer in the heating system. The first water inlet of the chamber 14 is connected to the outlet 18 of the condenser 8 placed in the compartment 5 of the heated medium above the sprayer 6, and between the latter and the condenser 8 there is a baffle 9 and a separator 10. The condenser 8 is provided at the bottom with a condensate collector 19 connected by a pipe 20 with a condensate consumer. The rotor 2 is equipped with a drive 21 and a regulating schber 23 is installed in the duct 22 before it

Regenerative heat exchanger works as follows.

Gases from gas duct 22 are supplied to gas compartment 4, passing through rotor 2 with a nozzle, which transfers part of the heat of gases. The gases then flow to the evaporation areas of the 16 thermosiphons, the condensation areas 13 of which give off heat to the water in chambers 14 and 15, and the water enters the chamber 15 through the nozzle 17 preheated in the chamber 14, and from the chamber 15 the water flows to the consumer for heating needs.

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Part of the water from the chamber 15 is taken to supply it to the sprayer 6. The sprayed water in compartment 5, falling on the rotor nozzle 2, leaves most of the hardness salts on it, turns into steam, which passes through the separator 10, which also precipitates hardness salts , then the steam enters the surface of the condenser 8, condenses, collects the condensate in the condensate collector 19 and is led through the pipe 20 to the consumer. Cold cooling water enters the condenser 8, when steam condensates, it gives off heat of vaporization, as a result of which its temperature rises to about 90 ° C, from which it enters the water-heating chamber 14. In the condenser 8, the vapor-air mixture is sucked into the pipe . The bump 9 serves to return the water droplets that fly away from the rotor 2 with the nozzle during the spraying of the liquid, which makes it possible to obtain a more dispersed spraying of water.

Claims (1)

The proposed heat exchanger provides deep utilization of the heat of the heating gases, since its design allows the use of the heat of vaporization to preheat the cold water in the condenser 8. Claims Regenerative heat exchanger comprising a housing with a rotor divided by a partition into compartments of a heating and heated medium, in the latter of which, above the rotor, is installed a sprayer with dispensing apertures directed toward the latter, characterized in that, in order to increase operational efficiency by deeper heat recovery, heating environment when used as a heated medium of water, the heat exchanger additionally contains a water heater, a condenser, a baffle and a separator, a water heater you olnen in sections inclined with condensing thermosyphon portions enclosed in boilers located outside the housing chamber and evaporator portions placed in the compartment after the heating medium downstream of the rotor, wherein the water-heating chamber are connected in series between themselves on. the outlet is equipped with a spray gun, and the first of them is connected along the water path to the outlet of a condenser placed in the compartment of the heated medium above the sprayer, with the baffle and separator located between the sprayer and the condenser. eight-:, B-6