KR101624622B1 - Apparatus for supplying warm water utilizing an air source heat pump - Google Patents

Abstract

The present invention relates to an apparatus for supplying hot water using an air source heat pump which minimizes a structure of an indoor facility to simplify a structure of an overall facility and improve working efficiency. The apparatus for supplying hot water using an air source heat pump comprises: a heat storage tank (110) in which a heat storage medium is stored; a first condensing unit (120) disposed in the heat storage tank (110), wherein a high-temperature high-pressure refrigerant circulates to heat the heat storage medium and is firstly condensed; and an outdoor unit (200) comprising a compressor (210) to compress the refrigerant of a low temperature and a low pressure to a high temperature and a high pressure to transfer the refrigerant to the first condensing unit (120), a second condensing unit (220) wherein the refrigerant discharged from the first condensing unit (120) circulates and is secondly condensed, an expansion member (230) to expand the refrigerant condensed and discharged from the second condensing unit (220) in to a low pressure, and an evaporation unit (240) to evaporate the refrigerant discharged from the expansion member (230) to transfer the refrigerant to the compressor (210), and consisting of a refrigerant coil unit (C) having two or more rows of refrigerant coils to integrate the second condensing unit (220) and the evaporation unit (240) with each other to exchange heat with each other.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a hot water supply device,

The present invention relates to a hot water supply device for supplying hot water using a heat pump.

The basic heat pump system is a device that absorbs heat from low-temperature heat sources such as outdoor air, low-temperature water, and well water to generate heat at a high temperature, such as warm indoor air or hot water. A driving energy is required to move. Air-to-air, air-to-water, water-to-air, and water-to-air methods are commonly used, depending on the heat exchange medium on the heat source side (the part that receives heat from the heat pump) and the heat-

The most used driving energy is electric energy, which is used to drive a compressor for compressing a refrigerant, which is a working fluid of a heat pump system. In addition to electric energy, thermal energy is used for driving. Absorption type heat pumps using steam, hot water, and combustion gas are typical examples.

The main feature of a heat pump system is that it can supply more energy in the form of heat energy than the energy required for driving, which makes energy use reasonably when using a heat pump.

For example, JP-A-10-0926808 discloses a heat pump type heating / cooling system capable of floor heating and simultaneous hot water supply. Such a heat pump type heating / cooling system basically includes an evaporator, a compressor , A condenser and an expansion valve, and is cooled or heated by a circulation cycle of the refrigerant, and includes a four-way valve for switching the flow direction of the refrigerant or for defrosting operation.

In the cooling / heating system, a compressor, an expansion valve, an evaporator, a four-way valve, and the like are installed in the outdoor unit so that the condenser and the heat exchanger are disposed outside the room and disposed between the outdoor unit and the storage tank.

Accordingly, a separate space is required depending on the arrangement of the indoor unit together with the heat storage tank in the room, and a lot of heat loss occurs during the movement of the refrigerant from the outdoor unit to the heat exchanger or the condenser of the indoor unit.

Patent Registration No. 10-0926808 (Publication Date: Nov. 12, 2009)

Patent Registration No. 10-0794270 (Date of Notification: 2008.01.11)

The present invention relates to an apparatus capable of supplying hot water using a heat pump using an air heat source, and in particular, to provide a hot water supply apparatus which can simplify the overall structure of the facility by minimizing the configuration of the indoor facility, do.

To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided an apparatus for supplying hot water using a heat and air heat pump, comprising: a heat storage tank for storing a heat storage medium; A first condenser provided in the heat storage tank for heating the heat storage medium while circulating the high temperature and high pressure refrigerant and performing primary condensation; A second condenser provided so as to perform a second condensation while circulating the refrigerant discharged from the first condenser, and a second condenser configured to compress the refrigerant at a high temperature and a high pressure to transfer the refrigerant to the first condenser, And an evaporator for evaporating the refrigerant discharged from the expansion valve and delivering the refrigerant to the compressor, wherein the second condenser and the evaporator are integrated and heat exchanged with each other And an outdoor unit including a refrigerant coil unit including two or more refrigerant coils.

Preferably, the expansion side is a capillary.

Preferably, the evaporator includes two or more input ports and an output port for providing independent refrigerant flow paths.

Preferably, the second condenser includes two or more input ports and an output port for providing independent refrigerant flow paths.

Preferably, the first condenser has a hexahedron structure in which two or more coils are connected to each other at both ends of the first condenser in the form of a single-ended band and are integrally formed with the heat sink.

The hot water supply device using the air heat pump according to the present invention employs only a hot water tank provided with a first condenser for performing heat exchange by primary condensation of refrigerant as indoor equipment for supplying hot water, 2 condenser, an expansion valve, and an evaporator. In particular, since the second condenser and the evaporator are formed of a single integrated refrigerant coil unit, there is an effect of minimizing the construction of the bag for hot water supply and minimizing the installation space.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a preferred embodiment of a hot water supply device using the air heat pump of the present invention;
2 is a view showing only a coolant coil unit of a hot water supply apparatus using the air heat pump of the present invention,
3 is a view showing a preferred embodiment of a heat storage tank of a hot water supply apparatus using the air heat pump of the present invention.

The specific structure or functional description presented in the embodiment of the present invention is merely illustrative for the purpose of illustrating an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention can be implemented in various forms. And should not be construed as limited to the embodiments described herein, but should be understood to include all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Meanwhile, in the present invention, the terms first and / or second etc. may be used to describe various components, but the components are not limited to the terms. The terms may be referred to as a second element only for the purpose of distinguishing one element from another, for example, to the extent that it does not depart from the scope of the invention in accordance with the concept of the present invention, Similarly, the second component may also be referred to as the first component.

Whenever an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but it should be understood that other elements may be present in between something to do. On the other hand, when it is mentioned that an element is "directly connected" or "directly contacted" to another element, it should be understood that there are no other elements in between. Other expressions for describing the relationship between components, such as "between" and "between" or "adjacent to" and "directly adjacent to" should also be interpreted.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. It will be further understood that the terms " comprises ", or "having ", and the like in the specification are intended to specify the presence of stated features, integers, But do not preclude the presence or addition of steps, operations, elements, parts, or combinations thereof.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1, the hot water supply device of the present invention includes a heat storage tank 110 in which a first condensing part 120 is installed; And an outdoor unit 200 installed on the outdoor side with a compressor 210, a second condenser 220, an expansion valve 230 and an evaporator 240 installed therein.

The heat storage tank 110 is provided with a water supply port and a drainage port through a water supply pipe to store a heat storage medium for supplying hot water, and a first condensation unit 120 is provided therein.

In the heat storage tank 110, a heat exchange pipe for supplying heating water for supplying heating water may be provided by using a heated heating medium.

The first condenser 120 may be provided by a circularly wound piping under the heat storage tank 110. The first condenser 120 may be provided by circulating the refrigerant at a high temperature / And is discharged to the outside.

The heat storage tank 110 may be installed on the indoor side. In particular, the present invention does not require a room installation facility other than the heat storage tank 110 on the indoor side.

The outdoor unit 200 includes a compressor 210, a second condenser 220, an expansion valve 230, and an evaporator 240, and is installed on the outdoor side.

The high-temperature / high-pressure refrigerant discharged from the compressor 210 is delivered to the first condenser 120. The high-temperature / high-

On the other hand, the liquid separator 211 can be mounted at the input end of the compressor 210, and the liquid refrigerant in the evaporated refrigerant transferred from the evaporator 240 can be separated to prevent liquid compression in the compressor 210.

Particularly, in the present invention, the refrigerant coil unit (C) is composed of two or more rows of refrigerant coils which are integrated and heat exchanged with each other. The refrigerant coil unit (C) A second condenser 220, and an evaporator 240 for evaporating the refrigerant by heat exchange.

A plurality of heat exchange pipes and heat dissipation fins provided in parallel with each other are integrally formed in the refrigerant coil unit (C). In particular, in the present invention, the U-band The construction area of the condenser and the evaporator can be variously used depending on the type of assembly, and a detailed description thereof will be described later in the related drawings.

The expansion valve 230 expands the refrigerant condensed in the second condenser 220 to the low temperature / low pressure and the refrigerant discharged from the expansion valve 230 is transferred to the evaporator 240.

The expansion valve 230 may be provided by a capillary tube provided on the expansion pipe L1 to transfer the refrigerant to the evaporator 240 so that the refrigerant liquid liquefied in the second condenser 220 It is possible to exclude the installation of a separate receiver for temporary storage.

FIG. 2 is a view showing only a coolant coil unit of a hot water supply apparatus using the air heat pump of the present invention. The left and right rows show evaporator units 241 and 242 and second condensers 221 and 222, respectively. . A cooling fan 250 may be provided in front of the evaporators 241 and 242 for heat exchange with the outside air.

In the present embodiment, the refrigerant coil unit C is composed of 28 heat exchange pipes c1 and c2, which are two rows, and the heat exchange pipes c1 and c2 are integrally formed with the heat radiating plate c4 One end of the adjacent heat exchange pipe (c1) (c2) is connected with the oil band (c3).

On the other hand, the coolant coil unit (C) may be provided with a oil band (c5) for connecting the heat exchange pipes to each other in the left and right rows. In this case, the heat exchange pipes The number of pipes for heat exchange for the evaporator and the second condenser can be variously selected and used by the band c5.

That is, the number of pipes for heat exchange between the evaporator and the second condenser can be arbitrarily selected by the cross-linked oil bands. In this embodiment, the evaporator uses the left column and the right column as a heat exchange pipe of the evaporator, And more than the condensation pipe.

In the present embodiment, the evaporators 241 and 242 are provided with two input ports at the upper left and upper right columns, respectively. The refrigerant passed through the expansion valve is input at the upper and middle ends of the refrigerant coil unit C, And the second condensers 221 and 222 are provided with two input ports at the upper and lower ends of the right side of the heat exchanger, respectively, so that the refrigerant, which is first condensed in the first condenser, Secondary condensation can be achieved.

In the meantime, all of the right side heat pipes may be connected in series to form a single condensing pipe. In this case, however, a supercooling degree of the refrigerant in which the secondary condensation is performed in the condensing pipe may be generated. (221) and (222) can prevent the supercooling of the refrigerant in which the secondary condensation occurs by circulating the refrigerant that is first condensed at the upper end of the right column and below the middle column. In addition, by appropriately selecting and using the arrangement of the evaporation pipe and the condensing pipe as described above, it is possible to prevent the supercooling of the secondary condensed refrigerant from being generated, thereby eliminating the defrosting operation for preventing the frosting, frost, .

3 is a view showing a preferred embodiment of a heat storage tank of a hot water supply apparatus using the air heat pump of the present invention.

As illustrated in FIG. 3, the heat storage tank 310 of the present invention may be provided with a coil part 320 in which a heat radiating plate and a coil are integrally formed as a first condensing part.

The heat storage tank 310 is provided with a water supply port 311 and a water discharge port 312 to supply and store raw water.

The coil part 320 includes a plurality of coils 321 arranged horizontally and a heat radiating plate 323 provided perpendicularly to the coil 321 and stacked at regular intervals and the ends of the coils 321 adjacent to each other And is connected by the oil band 322 to provide a refrigerant or heat medium flow path.

The coil part 320 includes a heating water port 321a for supplying heating water, a refrigerant port 321b for circulating and supplying the refrigerant, and a hot water port 321c for supplying hot water. Coil, and is connected to the outside of the heat storage tank by a separate pipe, so that heat exchange is performed with the high-temperature / high-pressure refrigerant circulating along the refrigerant port, so that heating can be performed and hot water or hot water (hot water supply) can be supplied.

In this embodiment, the coil part 320 is illustrated as being separately supplied with hot water and hot water. However, in some cases, only the heat accumulating medium, which is composed of only the coolant coil and is stored in the heat storage tank 310 by circulation of the coolant, .

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be apparent to those of ordinary skill in the art.

110, 310: heat storage tank 120: first condenser
200: outdoor unit 210: compressor
220: second condenser 230: expansion side
240: evaporator 320: coil part
C: Refrigerant coil unit

Claims (5)

A heat storage tank for storing a heat storage medium;
A first condenser provided in the heat storage tank for heating the heat storage medium while circulating the high temperature and high pressure refrigerant and performing primary condensation;
A second condenser provided so as to perform a second condensation while circulating the refrigerant discharged from the first condenser, and a second condenser configured to compress the refrigerant at a high temperature and a high pressure to transfer the refrigerant to the first condenser, And an evaporator for evaporating the refrigerant discharged from the expansion valve and delivering the refrigerant to the compressor, wherein the second condenser and the evaporator are integrated and heat exchanged with each other And an outdoor unit that is installed outside the outdoor unit, the outdoor unit comprising a refrigerant coil unit having two or more refrigerant coils. 2. The hot water supply device according to claim 1, wherein the expansion valve is a capillary. 2. The hot water supply device according to claim 1, wherein the evaporator comprises two or more input ports and an output port for providing independent refrigerant channels. The hot water supply device according to claim 1 or 3, wherein the second condenser includes two or more input ports and an output port for providing independent refrigerant channels. 2. The hot water supply device according to claim 1, wherein the first condenser is a hexahedron structure having a plurality of coils provided at two opposite ends of the first condenser, .

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