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INVENTION
Russian Federation Patent RU2266483

Three-pronged TRANSFORMER HEAT

Name of the inventor: Govorukhin LN (RU); Martynov AV (RU); Spiridonov AG (RU)
The name of the patentee: State Educational Institution of Higher Professional Education "Moscow Power Engineering Institute (Technical University)" (VPO "MEI (TU)") (RU)
Address for correspondence: 111250, Moscow, ul. Krasnokazarmennaya 14 VPO "Moscow Power Engineering Institute (Technical University)," HNI patent department
Starting date of the patent: 2004.04.15

Uses: thermal energy, in particular for the transformation of heat with heat pumps used for heating, conditioning and water. The transformer comprises heat the working fluid circulation circuit which includes a compressor connected in series, a capacitor, a first regenerative heat exchanger and the evaporator, and a second consumer line. The output capacitors of the heated medium is connected to the first line of the consumer. Log on the active medium of the ejector is connected to the output of the regenerative heat exchanger. Out of the ejector is connected to the input of the first evaporator through an expansion valve to the inlet of the second evaporator. Login ejector for passive medium to an outlet of the second evaporator. Yield of the first evaporator is connected to a second consumer line. The output of the second evaporator through the separator is connected to the third line of the consumer. The use of the invention will enhance the functionality of the heat and cold and water supply systems, namely, to obtain one unit of heat for the district heating system and cold and on the average temperature level for the air conditioning system at a low temperature level for cold supply systems.

DESCRIPTION OF THE INVENTION

The invention relates to the field of power engineering, in particular to heat transformers (heat pumps), used in heating, air conditioning and water supply, and can be used in centralized systems, and autonomous heat and cold.

Known heat pump comprising a circulation loop working fluid comprising serially connected compressor, steam cooler, a condenser, a condensate cooler, a regenerative heat exchanger which is connected through an expansion valve to the input of the evaporator, the output of which through a regenerative heat exchanger connected to the compressor inlet, wherein the condensate cooler input for the heated medium connected to the inlet of the heat pump, the condenser outlet for the heated medium connected to the first line of the consumer, and the cooling steam outlet for the heated medium connected to the second consumer line.

The disadvantage of such a heat pump is relatively small reduction of energy losses in the working fluid cooling and condensation processes, because the flow of the entire flow of heated fluid through the condensate cooler does not allow to maximize the potential of the working fluid condensate heat of the condenser because of the emerging high equivalence working fluid flows, and heated medium (Dichev S, Kartelov G. Lechev D , Increasing the effiency of compressor heat Pumps by obtaining multizone condensation XVI -. congress international du freidcommissions Br 1983. p.39-43.) / 1 /.

The closest the technical essence and achieved result to the claimed device is a heat pump (heat transformer) containing the circulation circuit of the working medium, which includes series-connected compressor, steam chiller, condenser, condensate cooler, regenerative heat exchanger, which is connected through an expansion valve to the entrance of the evaporator whose output is through a regenerative heat exchanger connected to the compressor inlet, wherein the condensate cooler input by the heated medium connected to the inlet of the heat pump, the condenser outlet for the heated medium connected to the line of the first user, and output the coolant vapor on the heated medium connected to the line of the second user, wherein condensate cooler at the heated medium is further provided with a bypass line connected to the input capacitor, and the condensate cooler outlet for the heated medium is connected to a pair of coolant input (RF patent №2044234, M.kl 6 F 25 B 9/00, publ. 20.09.95) / 2 /.

However, in the proposed / 2 / circuit reduces although exergy loss in the heat pump, the medium is heated but this can only be obtained at two temperature levels.

The task to be solved by the proposed device is to expand the functionality of heat and cold and water supply systems, namely: obtaining one unit of heat for the district heating system and cold and on the average temperature level for the air conditioning system at a low temperature level for cold supply systems.

The technical problem is solved by the fact that the known heat transformer, comprising a circulation loop working fluid, which includes serially connected a compressor, a condenser, a regenerative heat exchanger, the condenser outlet for the heated medium connected to the line of the first user and the line of the second user, the first evaporator according to the invention further comprises a second an evaporator, the ejector, the third consumer line and a separator, wherein the input of the ejector through the active medium is connected to the output of the regenerative heat exchanger, the ejector outlet is connected to the input of the first evaporator through an expansion valve to the inlet of the second evaporator, the entrance of the ejector on the passive medium is connected to the outlet of the second evaporator, output of the first evaporator is connected to the second line of the consumer, the output of the second evaporator through the separator is connected to the third line of the consumer.

Such an arrangement of heat transformer can improve the energy efficiency of the heat pump and reduce the non-equivalence of the working fluid flows and the heated environment by separating the heat transformer the working fluid condensate flow and the difference in the working fluid pressure in the evaporators, which provides the ability to connect the heat transformer to three customers - two cold and one heat. The presence of the separator on the third line allows consumers to get fresh water.

The drawing shows a diagram of the three-pronged heat transformer.

Three-pronged TRANSFORMER HEAT

Three-pronged heat transformer contains a circulation loop of the working fluid, which consists of serially connected a compressor 1, a condenser 2, a regenerative heat exchanger 3, the output of which through the ejector 4 is connected to the first evaporator condenser 5. Exit 2 on the heating medium line is connected to the first consumer 6, which is heat consumer. Yield of the first evaporator 5 is connected to the second consumer line 7, which is a cold consumer. Out of the ejector 4 via the throttle valve 8 is connected to the input of the second evaporator 9, whose output is connected through a separator 10 to a line 11 of the third user, being the cold consumer. At the exit of the separator 10 has a condensate drain line 12.

Device operates as follows

Compressed in the compressor 1 pairs of the working substance in a superheated state into the condenser 2, which is its condensation with the return heat heating medium passing through the first user 9 then condensed working medium enters the regenerative heat exchanger 3, and then - the input an active medium for the ejector 4. Next, two-phase flow of working medium is divided into two streams, the first of which flows into the first evaporator 5, and the second - through the throttle valve 8 into the second evaporator 9. The steam from the first evaporator 5 enters the regenerative heat exchanger 3, in which its heating comes from removing heat from the working medium flow in the evaporator 5, which goes to the ejector 4. The second flow (condensation working material) enters the throttle valve 8. The throttle valve 8 is carried throttling the flow of working substance, whereupon the working medium in the wet state steam enters the second evaporator 9 which is its boiling by the heat of low-grade heat source, through the inlet 7 of the second cold consumer. After the second evaporator 9 dry saturated steam of the working medium is supplied to the input of the passive medium of the ejector 4. The cooled stream enters the separator 8. At the same time moisture condensate extracted from the air is removed through line 12.

The use of the proposed technical solutions will not only receive three different temperatures flow, but additionally fresh water.

CLAIM

Three-pronged transformer heat comprising circulating circuit working fluid that includes serially connected a compressor, a condenser, a regenerative heat exchanger, the condenser outlet for the heated medium connected to the line of the first user, and the line of the second user, the first evaporator, characterized in that it further comprises a second evaporator ejector third consumer line and a separator, wherein the ejector input by the active medium is connected to the output of the regenerative heat exchanger, the ejector outlet is connected to the input of the first evaporator through an expansion valve to the inlet of the second evaporator, the entrance of the ejector on the passive medium is connected to the outlet of the second evaporator, a first outlet the evaporator is connected to the second line of the consumer, the output of the second evaporator through the separator is connected to the third line of the consumer.

print version
Publication date 07.12.2006gg