KR20110002718A - Heating system associated with heat pump - Google Patents

Abstract

PURPOSE: A heating system engaging with a heat pump is provided to enable economic and efficient heating using a heat pump and a heating source. CONSTITUTION: A heating system engaging with a heat pump comprises a heat exchanger(110) and a heater(210). The heat exchanger exchanges the heat of water and refrigerant circulating in the heat exchange cycle. The heater heats the water. The heating system generates hot water used for at least one between heating and hot water supply. The hot water is created by at least one between heat exchange in a heat exchanger and heating by the heater. If the required hot water temperature is lower than the temperature of refrigerant, the hot water is created only by the heat exchange in the heat exchanger.

Description

Heat pump interlocking heating system {Heating system associated with heat pump}

The present invention relates to a heating system, and more particularly, to a heat pump interlocking heating system that selectively uses a heat pump and a heating heat source.

In general heating systems, heating and hot water supply are performed by a heat pump using condensation heat or a boiler using combustion heat of fossil fuel or a heater heat of an electric heater. However, in the case of a heat pump, there is a disadvantage in not being able to secure sufficient heat for heating and hot water supply, and in the case of a boiler, a maintenance cost increases.

An object of the present invention is to provide a heat pump interlocking heating system configured to be more economically and efficiently heated.

Heater pump interlocking heating system according to an embodiment of the present invention for achieving the above object, in the heating system for generating hot water used for at least one of heating and hot water supply: the refrigerant circulating the heat exchange cycle and the water is heat exchanged Heat exchanger; And a heating unit for heating the water; It includes, wherein the hot water is generated by at least one of the heat exchange in the heat exchange unit and the heating by the heating unit.

In the heat pump interlocked heating system according to another embodiment of the present invention, a heating system for generating hot water used for at least one of heating and hot water supply, comprising: a heat exchange unit for selectively exchanging water and a refrigerant circulating a heat exchange cycle; A connection pipe through which water passing through the heat exchange part flows; A heating unit which receives water from the heat exchanger and heats it through the connection pipe; An outlet pipe through which water heated in the heating unit flows; And a bypass tube for bypassing the water passing through the heat exchange part to the water discharge pipe. .

According to the present invention, there is an advantage that more economical and efficient heating is possible.

Hereinafter, with reference to the accompanying drawings an embodiment of a heat pump interlock heating system according to the present invention will be described in more detail.

1 is a block diagram showing a first embodiment of a heat pump interlock heating system according to the present invention.

Referring to FIG. 1, the heat pump interlocked heating system according to the present embodiment includes a heat exchanger 110 and a heater 210. The heat exchanger 110 exchanges heat between the refrigerant flowing in the heat exchange cycle and the water for heating the indoor space. The heating unit 210 heats water for heating the indoor space.

More specifically, the heat exchange part 110 is in contact with the incoming refrigerant pipe (P1) through which the refrigerant circulating the heat exchange cycle is drawn in and the withdrawal refrigerant pipe (P2) through which the refrigerant heat exchanged with the heat exchange unit (110) flows. . Substantially the incoming refrigerant pipe (P1) and the drawn refrigerant pipe (P2) will be connected to each other.

In addition, the heat exchange part 110, a recovery pipe (P3) for transmitting the remaining hot water used for heating or / and hot water and a connection pipe for delivering the water delivered through the recovery pipe (P3) to the heating unit (210). Contact with (P4). The recovery pipe P3 and the connection pipe P4 may be connected to each other.

The heat exchange between the refrigerant and the water circulating through the heat exchange cycle through the heat exchange unit 110 is performed. At this time, the heat exchange in the heat exchange unit 110 is selectively made. To this end, for example, the refrigerant circulating through the heat exchange cycle may selectively flow through the inlet refrigerant pipe P1 and the outlet refrigerant pipe P2.

The pump 10 is installed on the recovery pipe P3. The pump 10 pumps the water used for heating or / and hot water and returned to the heat exchange part 110 through the recovery pipe P3.

In addition, the connection pipe (P4) is provided with a first valve (V1). The opening degree of the first valve V1 is controlled to control whether the water is transferred from the heat exchanger 110 to the heating unit 210 and the amount of water transferred through the connection pipe P4.

The heating unit 210 heats the water received from the heat exchange unit 110 through the connection pipe (P4). The heating unit 210 includes, for example, a reservoir 211 and a heating source 213. The water received from the heat exchange part 110 is stored in the water storage part 211. To this end, the reservoir 211 is in communication with the connecting pipe (P4). The heating source 213 heats the water stored in the reservoir 211.

In addition, the heating unit 210 is connected to the water outlet pipe (P5) and the water supply pipe (P6). The outlet pipe (P5) is for the extraction of the water heated in the heating unit 210, the water supply pipe (P6) is for replenishing the water to the heating unit (210). To this end, the water outlet pipe P5 and the water supply pipe P6 are in communication with the reservoir 211, respectively. The water supply pipe P6 is connected to an external water supply source 20.

And the water drawn out through the water outlet pipe (P5), more specifically, the water heated by the heating unit 210 for heating or hot water supply through the heating pipe (P7) and / and hot water supply pipe (P8). Supplied. The heating pipe P7 and the hot water supply pipe P8 may be formed by branching the water discharge pipe P5 in two directions.

A second valve V2 is installed at an end of the water discharge pipe P5, that is, a portion where the heating pipe P7 and the hot water supply pipe P8 are branched. The second valve V2 allows the water heated by the heating unit 210 to flow into any one of the heating tube P7 and the hot water supply pipe P8 and at the same time the heating tube P7 and the hot water supply pipe ( Adjust the amount of water supplied to P8).

The heating pipe (P7), for example, is connected to the fan coil unit or disposed on the floor surface of the indoor space. The hot water supply pipe P8 heats water for hot water stored in the hot water tank 30. Therefore, the recovery pipe P3 is connected to the fan coil unit or the heating pipe P7 and connected to the hot water supply pipe P8 to recover the water used for heating or / and hot water supply.

Meanwhile, the water passing through the heat exchange part 110 is selectively bypassed to the water outlet pipe P5. To this end, a bypass pipe P9 having both ends of the connection pipe P4 and the water discharge pipe P5 is connected thereto. Therefore, the water passing through the heat exchange part 110 is delivered to the heat exchange part 110 through the connection pipe (P4), or is bypassed to the water outlet pipe (P5) through the bypass pipe (P9). .

A third valve V3 is installed in the bypass pipe P9. The third valve V3 selectively opens and closes the bypass pipe P9. Therefore, the water passing through the heat exchange unit 110 may be selectively bypassed through the bypass pipe (P9).

Hereinafter, the operation of the first embodiment of the heat pump interlocking heating system according to the present invention will be described in more detail with reference to the accompanying drawings.

2 to 5 is a block diagram showing a heating operation according to a first embodiment of the present invention.

First, referring to FIG. 2, when the temperature of hot water required for heating or / and hot water supply is less than or equal to the temperature of the refrigerant flowing through the incoming refrigerant pipe P1, heating is performed using only a heat pump. At this time, the first valve V1 is shielded and the second valve V2 is opened.

More specifically, the water returned through the recovery pipe (P3) flowing through the connection pipe (P4) is drawn through the incoming refrigerant pipe (P1) by the heat exchange unit 110 and withdrawn through the withdrawal refrigerant pipe (P2) Heat exchange with the refrigerant. However, as described above, since the first valve V1 is shielded and the second valve V2 is opened, all of the refrigerant flowing through the connection pipe P4 is discharged through the bypass pipe P9. Bypassed to (P5).

And the water bypassed to the water outlet pipe (P5), that is, hot water heat exchanged with the refrigerant is used for heating or / and hot water by flowing the heating pipe (P7) and / and hot water supply pipe (P8). At this time, the supply of hot water used for heating or hot water supply through the heating pipe (P7) and / and the hot water supply pipe (P8) is controlled by the third valve (V3).

Next, referring to FIG. 3, when the temperature of the hot water required for heating or / and hot water supply is greater than the temperature of the refrigerant and equal to or less than the predetermined reference temperature, heating is performed using the heat pump and the heating unit 210. Here, the reference temperature may be determined according to the temperature of the refrigerant and the required hot water temperature. At this time, the opening degree of the first valve V1 is adjusted, and the second valve V2 is opened.

Therefore, a part of hot water that is heat-exchanged in the heat exchange part 110 and flows through the connection pipe P4 is transferred to the heating part 210, and the other part of the hot water flows through the bypass pipe P9. Is bypassed). A portion of the hot water that is heat exchanged in the heat exchange part 110 and transferred to the heating part 210 is transferred to the heating part 210, more specifically, the water storage part 211 and is heated to the heating source 213. Is heated. Hot water heated in the heating unit 210 is delivered to the water outlet pipe (P5). Therefore, the hot water heated in the heating unit 210 is heat-exchanged in the heat exchange unit 110 and mixed with the hot water bypassed to the water outlet pipe P5 through the bypass pipe P9. At this time, the opening degree of the first valve (V1) is adjusted, that is, the amount of hot water delivered to the heating unit 210 of the hot water heat exchanged in the heat exchange unit 110 and bypassed through the bypass pipe (P9) By adjusting the amount of hot water, it is possible to provide hot water at a required temperature.

The hot water delivered to the water outlet pipe P5 is controlled by the third valve V3 to flow the heating pipe P7 and / or the water supply pipe P6 to be used for heating or / and hot water supply.

Meanwhile, referring to FIG. 4, when the temperature of hot water required for heating or / and hot water exceeds the reference temperature, heating is performed using only the heating unit 210. In this case, the first valve V1 is opened and the second valve V2 is shielded.

Therefore, all of the hot water that is heat-exchanged in the heat exchange part 110 and flows through the connection pipe P4 is transferred to the heating part 210. And it is heated in the heating unit 210 is delivered to the water outlet pipe (P5). The hot water delivered to the water outlet pipe P5 is controlled by the third valve V3 to flow the heating pipe P7 and / or the water supply pipe P6 to be used for heating or / and hot water supply.

Finally, referring to FIG. 5, even when the temperature of the water recovered through the recovery pipe P3, that is, the heating or / and hot water and the temperature of the remaining water exceeds the temperature of the refrigerant, only the heating unit 210 is used. Perform heating Accordingly, the first valve V1 is opened and the second valve V2 is shielded. However, at this time, the inflow of the refrigerant to the heat exchange unit 110 through the incoming refrigerant pipe (P1) is stopped. Accordingly, the water recovered through the recovery pipe P3 passes through the heat exchange part 110 but is transferred to the heating part 210 through the connection pipe P4 without heat exchange with the refrigerant.

Hereinafter, a second embodiment of the heat pump interlock heating system according to the present invention will be described in more detail.

Figure 6 is a block diagram showing a second embodiment of the heat pump interlock heating system according to the present invention. The same components as those of the first embodiment of the present invention described above among the components of the present embodiment will be omitted by the reference numerals of FIG. 1.

Referring to Figure 2, in the present embodiment, the heat pump interlock heating system is connected to the air conditioning apparatus for heating and cooling the indoor space. In other words, in this embodiment, the heating system is provided with heat for heating from the refrigerant circulating the air conditioning apparatus.

More specifically, the air conditioner includes at least one outdoor unit 40 and a plurality of indoor units 50 and 60. The outdoor unit 40 and the indoor unit 50 and 60 are provided with various components constituting a heat exchange cycle such as a compressor, an outdoor heat exchanger, and an indoor heat exchanger.

In addition, a coolant pipe 70 for circulating a coolant between components installed in the outdoor unit 40 and the indoor unit 50 and 60 is provided. A portion of the refrigerant pipe 70 is in contact with the heat exchange part 110 of the heating system. Of course, a part of the refrigerant flowing through the refrigerant pipe 70 may be bypassed for air conditioning to be heat-exchanged with water by the heat exchanger 110.

Hereinafter, a third embodiment of a heat pump interlock heating system according to the present invention will be described in more detail with reference to the accompanying drawings.

7 is a configuration diagram showing a third embodiment of a heat pump interlock heating system according to the present invention. The same components as those of the first embodiment of the present invention described above among the components of the present embodiment will be omitted by the reference numerals of FIG. 1.

Referring to FIG. 7, in the present embodiment, the heating unit 220 includes a heating tube 221, a heating source 223, and a heat transfer unit 225. The heating tube 221 is connected to the connecting pipe (P4). Therefore, the refrigerant passing through the heat exchange part 110 flows into the heating tube 221. The heating source 223 provides heat for heating water flowing through the heating tube 221. The heat transfer part 225 transfers the heat of the heating source 213 to the water flowing through the heating tube 221. For example, the heat transfer part 225 may be formed in a plate or fin shape.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the above teachings. will be.

In the heat pump interlocking heating system according to the present invention as described above, the heat pump and the heating unit are selectively used according to the required heating capacity. Therefore, the effect of heating the indoor space more efficiently and economically can be expected.

1 is a block diagram showing a first embodiment of a heat pump interlock heating system according to the present invention.

2 to 5 is a block diagram showing a heating operation according to a first embodiment of the present invention.

Figure 6 is a block diagram showing a second embodiment of the heat pump interlock heating system according to the present invention.

Figure 7 is a block diagram showing a third embodiment of the heat pump interlock heating system according to the present invention.

Claims (16)

In a heating system that generates hot water used for at least one of heating and hot water: A heat exchange part in which water is exchanged with a refrigerant circulating a heat exchange cycle; And A heating unit for heating water; Including, And the hot water is generated by at least one of heat exchange in the heat exchange unit and heating by the heating unit. The method of claim 1, The heat pump interlocking heating system in which hot water is generated only by heat exchange in the heat exchange part when the required temperature of hot water is equal to or less than the temperature of the refrigerant. The method of claim 1, If the required temperature of the hot water is greater than the temperature of the refrigerant and less than a predetermined reference temperature, only a part of the hot water heat exchanged in the heat exchanger is transferred to the heating source to be heated. The method of claim 1, If the required temperature of the hot water exceeds the predetermined reference temperature, all of the hot water exchanged in the heat exchange unit is transferred to the heating source is heated heat pump interlocking heating system. The method of claim 1, The hot pump interlocked heating system, wherein the hot water is heat-exchanged with the refrigerant in the heat exchanger only when the temperature of the hot water used for at least one of heating and hot water is returned to the heat exchanger is higher than or equal to the temperature of the refrigerant. In a heating system that generates hot water used for at least one of heating and hot water: A heat exchange part for selectively exchanging heat with the refrigerant circulating in the heat exchange cycle; A connection pipe through which water passing through the heat exchange part flows; A heating unit which receives water from the heat exchanger and heats it through the connection pipe; An outlet pipe through which the water heated in the heating unit flows; And Bypass pipe for bypassing the water passing through the heat exchange unit to the water discharge pipe; Heat pump interlock heating system comprising a. The method of claim 6, The connecting pipe is provided with a first valve for adjusting the opening degree of the connecting pipe, The bypass pipe, the heat pump interlock heating system is provided with a second valve for opening and closing the bypass pipe. The method of claim 7, wherein And the first valve shields the first connection pipe, and the second valve opens the bypass pipe when the required temperature of the hot water is equal to or lower than the temperature of the refrigerant. The method of claim 7, wherein And the first valve opens the connection pipe and the second valve opens the bypass pipe when the required temperature of the hot water exceeds the temperature of the refrigerant and is equal to or less than a predetermined reference temperature. The method of claim 9, The opening degree of the said connection pipe by a said 1st valve is a heat pump interlocking heating system set according to the temperature of necessary hot water. The method of claim 7, wherein And the first valve opens the connection pipe and the second valve shields the bypass pipe when the required temperature of hot water exceeds a predetermined reference temperature. The method of claim 7, wherein A heat pump interlocking heating system in which heat is exchanged between the water and the refrigerant in the heat exchange unit only when the temperature of water used for at least one of heating and hot water is returned to the heat exchange unit is equal to or higher than the temperature of the refrigerant. 13. The method of claim 12, And the first valve opens the connection pipe and the second valve shields the bypass pipe when the temperature of the water returned to the heat exchange part is equal to or higher than the temperature of the refrigerant. The method of claim 6, The heating unit, A reservoir for storing water received from the heat exchanger by the connection pipe; And A heating source for heating the water stored in the reservoir; Heat pump interlock heating system comprising a. The method of claim 6, The heating unit, A heating tube through which the water received from the heat exchange part flows through the connection tube; A heating source for heating water flowing through the heating tube; And A heat transfer part configured to transfer heat of the heating source to water flowing through the heating tube; Heat pump interlock heating system comprising a. The method of claim 6, The heat exchange cycle, the heat pump interlocking heating system constituting the air conditioner for air conditioning the indoor space.

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