KR102624261B1 - Apparatus for Supplying Heating and Hot Water - Google Patents

Abstract

The present invention relates to a heating and hot water supply device that supplies heating and hot water within a household using heat medium discharged from an air conditioner.
The heating and hot water supply device according to the present invention includes an inflow line that allows the heat medium supplied from a heat source to be supplied to the heating place or to the heating place after passing through an air conditioner, and heat exchange between the heat medium passing through the inflow line and city water. It includes a hot water supply heat exchanger connected in parallel with the heating source, a heating medium passing through the heating source, and a heating hot water supply return line that allows the heating medium passing through the hot water supply heat exchanger to be returned to the heat source.

Description

Apparatus for Supplying Heating and Hot Water}

The present invention relates to a heating and hot water supply device, and more specifically, to a heating and hot water supply device that supplies heating and hot water within a household using a heat medium supplied from a heat source and a heat medium discharged from an air conditioner.

Heating methods for apartment complexes can be broadly divided into individual heating methods and centralized heating methods.

The individual heating method is a method in which heating and hot water are supplied to each household by a boiler provided for each household. It has the advantage of being able to supply as much heating as desired to each household when desired, but the boiler is adjacent to the living space of each household. The disadvantage is that noise is generated during operation, and when the user needs to operate the boiler to heat heating water or hot water, there is a delay until sufficient temperature of heating and hot water is supplied.

The centralized heating method is a method in which heating and hot water are supplied to multiple households by a main heat source. There is a district heating method for a specific area and a central heating method for apartment complexes, etc.

The centralized heating method has the advantage that there is no need to separately manage heat sources that supply heating and hot water in each household, and that users can immediately receive heating and hot water at a set temperature from the central system when needed.

However, the temperature and supply timing of heating and hot water supplied to each household cannot be set individually, and the availability of heating and hot water to all households in the area or complex is determined by the availability of the main heat source. There is.

Referring to Figure 1, a centralized heating and hot water supply system according to the prior art will be described.

The centralized heating and hot water supply system according to the prior art supplies heating to a plurality of households using a main heat source (1) that supplies heat to local or central heating, and a heat medium heated from the main heat source (1) as a heat source. It includes a heating facility (10) and a hot water supply facility (20) that supplies hot water to the plurality of households using the heat medium heated from the heat source (1) as a heat source.

In addition, the heating equipment 10 includes a heating heat exchanger 11 in which heat exchange is performed between the heated heat medium and heating water supplying heating to the plurality of households, and the heating heat exchanger 11 is heated in the heating heat exchanger 11. A main heating line 12 through which heating water is supplied to the heating device 50 of each household, and a main water return line 13 through which the heating water heated by the heating device 50 is returned to the heating heat exchanger 11. ), including.

In addition, the hot water supply equipment 20 includes a heat exchanger 21 for hot water supply in which heat exchange is performed between the heating medium and hot water supplying hot water to the plurality of households, and the hot water heated in the heat exchanger 21 for hot water supply. A main hot water line (22) through which hot water flows and is supplied as hot water through the hot water tap (61) of each household, and a main hot water line (23) through which hot water remaining after supplying hot water is returned to the heat exchanger (21) for hot water. It is made including.

In addition, the city water flowing through the city water line 70 is heated in the heat exchanger 21 for hot water supply and becomes hot water, or is supplied as cold water through the cold water faucet 62 of each household.

At this time, the heating equipment 10 and the hot water supply equipment 20 each have separate configurations, and the heat medium heated from the main heat source 1 and heat exchanged in the heating heat exchanger 11 preheats the hot water water. It is made to be used for.

That is, in the centralized heating and hot water supply system according to the prior art, the heating equipment (10) and the hot water supply equipment (20) have four pipes, each including separate supply pipes (12, 22) and return pipes (13, 23). It is usually done this way.

Therefore, since the operation of either the heating equipment 10 or the hot water supply equipment 20 can be stopped, the central system stops the operation of the heating equipment 10 for a specific period such as the summer and the hot water supply equipment 20 ), this caused inconvenience to individual households that wanted to receive a continuous supply of heating.

In addition, there was a problem in that the installation space and installation cost required to provide the heating equipment 10 and the hot water supply equipment 20, respectively, were high.

Accordingly, inconveniences were caused to individual households as the central system uniformly determined whether or not to supply heating or hot water to the relevant households. For example, the central system stopped operation of the heating equipment 10 for a specific period such as the summer season and By implementing a policy of operating only the hot water supply facility 20, inconveniences were caused to individual households that wanted to receive heating even in the summer.

In addition, there was a problem that installation space was required to provide the heating equipment 10 and the hot water supply equipment 20, respectively, and installation costs were incurred.

In addition, the domestic hot water and the heating water flow through separate pipes, causing heat loss respectively, resulting in increased total heat loss and reduced efficiency.

In addition, since the hot water or the heating water provides hot water or heating and there is residual heat available in the recovered heat medium, there is a need to find a way to increase thermal efficiency by utilizing this.

An example of prior art for the centralized heating and hot water supply system as described above is Republic of Korea Patent No. 10-0568753.

The present invention was developed to solve the above problems, and aims to provide a heating and hot water supply device that can simplify the installation space and significantly reduce heat loss by supplying heating and hot water to each household using integrated piping. .

In addition, it is intended to provide a heating and hot water supply device that can increase energy efficiency by providing heating and hot water within the household using the heat medium discharged from the air conditioner.

In addition, we aim to provide a heating and hot water supply device that can increase the efficiency of heating and hot water supply and user convenience by allowing each household to set whether to supply hot water or adjust the temperature of hot water.

In addition, it is intended to provide a heating and hot water supply device that can replenish the amount of heat consumed and increase the efficiency of heating and hot water supply in supplying heating and hot water using a heat medium in which the amount of heat has been consumed.

In addition, it is intended to provide a heating and hot water supply device that can prevent heat medium discharged from an air conditioner from flowing into a supply line through which heat medium heated from a heat source flows.

In addition, it is intended to provide a heating and hot water supply device that can simplify the structure of pipes used for heating and hot water supply within a household.

In addition, it is intended to provide a heating and hot water supply device that can significantly reduce heat loss from the heat medium and increase the efficiency of hot water supply within the household.

The heating and hot water supply device of the present invention for realizing the above-described purpose includes an inflow line that allows the heat medium supplied from a heat source to be supplied to the heating source or to be supplied to the heating source after passing through an air conditioner; A hot water heat exchanger in which heat is exchanged between the heat medium passing through the inlet line and the city water; a heating hot water supply water return line that allows the heat medium that has passed through the heating source and the heat medium that has passed through the hot water supply heat exchanger to be returned to the heat source; and a temperature measuring unit that measures the temperature of the heating medium flowing through the inflow line, wherein the flow rate of the heating medium supplied to the inflow line is based on the temperature of the heating medium measured by the temperature measuring unit so that heating and hot water are supplied at a set temperature. A heating supply line that adjusts and allows the heat medium passing through the inflow line to flow to the heating source; A hot water supply line that allows the heat medium passing through the inflow line to flow into the hot water heat exchanger; A hot water exchange line through which the heat exchanged heat exchanger flows in the hot water heat exchanger; It further includes a heating return water line through which the heat medium heated by the heating source flows, wherein the hot water return water line and the heating return water line are connected to the heating hot water return water line, and the inlet line is connected to the heat medium heated from the heat source. A first inflow line into which heat flows, a second inflow line connected to the air conditioner and into which the heat medium discharged from the air conditioner flows, and the first inflow line and the second inflow line are combined to form the heating source or the It includes a third inlet line connected to a hot water heat exchanger, wherein the temperature measuring unit measures the temperature of the heat medium flowing through the third inlet line, and adjusts the opening degree of the first inlet line to flow through the first inlet line. A first flow control valve that controls the flow rate of the heat medium; a second flow control valve that adjusts the flow rate of the heat medium flowing through the second inflow line by adjusting the opening degree of the second inflow line; A hot water supply flow rate control valve that controls the flow rate of the heat medium flowing through the hot water supply line; A heating flow rate control valve that regulates the flow rate of the heat medium flowing through the heating return line; And based on the temperature of the heat medium measured by the temperature measuring unit, the first flow control valve, the second flow control valve, the heating flow control valve, and the hot water supply flow control valve are adjusted to adjust the heating and hot water to the set temperature. It includes a control unit that controls supply.

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A heat medium supply line may be provided through which heat medium heated from the heat source is supplied to the air conditioner, and the first inlet line may be branched from the heat medium supply line.

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A backflow prevention unit may be provided to prevent backflow of the heat medium flowing through the inflow line, and the backflow prevention unit may be provided on the first inflow line.

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The hot water supply heat exchanger may be comprised of a first hot water supply heat exchanger that primarily heats the municipal water, and a second hot water supply heat exchanger that secondarily heats the municipal water.

It includes a heating return line through which a heat medium flowing through the heating pipe to perform heating flows, wherein one side of the second hot water supply heat exchanger is connected to the hot water supply line and the other side is connected to the first hot water heat exchanger, The heat medium flowing in from the hot water supply line may exchange heat with the city water and then flow into the first hot water heat exchanger.

In addition, the first hot water supply heat exchanger has one side connected to the second hot water supply heat exchanger and the heating return water line, and the other side connected to the heating hot water return water line, so that the heat medium flowing in from the second hot water supply heat exchanger and the heating The heat medium flowing in from the water return line may exchange heat with the city water and then flow into the heating and hot water supply return line.

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The heat medium passing through the inflow line may be supplied to the heating source and the hot water supply heat exchanger at the same time, and the heat medium may be supplied to the hot water supply heat exchanger with priority over the air conditioner or the heating source.

According to the heating and hot water supply device for centralized heating according to the present invention, the installation space can be simplified and heat loss can be significantly reduced by supplying heating and hot water to each household using a two-pipe centralized hot water heating supply system. .

In addition, energy efficiency can be increased by providing heating and hot water within the household using the heat medium discharged from the air conditioner.

In addition, it is equipped with a hot water flow control valve to set the supply of hot water for each household or to control the temperature of hot water, thereby increasing the efficiency of hot water supply and user convenience.

In addition, a heating flow control valve is provided to set the supply of heating for each household or to control the temperature of the heating, thereby increasing the efficiency of heating supply and user convenience.

In addition, by providing a second flow control valve or a first flow control valve to control the temperature of the heat medium and the mixed water of the heat medium, the supply of heating and hot water can be adjusted for each household, thereby improving the efficiency of heating and hot water supply and improving user efficiency. Convenience can be increased.

In addition, it is provided with a temperature measuring unit that measures the temperature of the incoming heat medium, and controls the first flow rate control valve or the second flow rate control valve and the heating flow rate control valve or the hot water supply flow rate control valve based on the measured temperature of the heat medium to provide heating and It can ensure that hot water is supplied at the optimal temperature.

In addition, by providing hot water or heating within the household using a heat medium in which a high-temperature heat medium is mixed with a heat medium in which heat energy has been consumed and mixed water of the heat medium, the amount of heat consumed can be replenished and the efficiency of heating and hot water supply can be improved.

In addition, the backflow prevention unit can be provided to prevent the heat medium that has passed through the air conditioner from flowing into the first inflow line.

In addition, the heating and hot water supply device is configured to include all piping used for heating and hot water supply within the household, thereby simplifying the piping structure within the household.

In addition, heating and hot water can be supplied independently to each household using a two-pipe centralized hot water supply system consisting of a heat source, the heat medium supply line, and the heat medium return line, thereby increasing user convenience.

In addition, by heating city water multiple times using the heat-exchanged heating medium, heat loss from the heating medium can be significantly reduced and the efficiency of hot water supply within the household can be increased.

1 is a diagram schematically showing a centralized heating and hot water supply system according to the prior art.
Figure 2 is a diagram showing a heating and hot water supply device according to the first embodiment of the present invention.
Figure 3 is a diagram showing a floor heating mode using a heating and hot water supply device according to the first embodiment of the present invention.
Figure 4 is a diagram showing a hot water supply mode using a heating and hot water supply device according to the first embodiment of the present invention.
Figure 5 is a diagram showing a floor heating and hot water supply mode using a heating and hot water supply device according to the first embodiment of the present invention.
Figure 6 is a diagram showing a simultaneous heating mode using a heating and hot water supply device and an air conditioner according to the first embodiment of the present invention.
Figure 7 is a diagram showing a convection heating and hot water supply mode using a heating and hot water supply device and an air conditioner according to the first embodiment of the present invention.
Figure 8 is a diagram showing a simultaneous heating and hot water supply mode using a heating and hot water supply device and an air conditioner according to the first embodiment of the present invention.
Figure 9 is a diagram showing a heating and hot water supply device according to a second embodiment of the present invention.
Figure 10 is a diagram showing a heating and hot water supply device according to a third embodiment of the present invention.
Figure 11 is a diagram showing a heating and hot water supply device according to a fourth embodiment of the present invention.

Hereinafter, with reference to the attached drawings, the configuration and operation of the heating and hot water supply device and the household heating and hot water supply system according to the present invention will be described in detail as follows.

Here, detailed description of content and overlapping content described in the prior art will be omitted, and the description will focus on components newly added to the present invention.

In addition, detailed description of content that overlaps with the drawings described above will be omitted, and the description will focus on components with differences.

Referring to FIG. 2, a heating and hot water supply device 200-1 for centralized heating according to the first embodiment of the present invention will be described.

According to the first embodiment, the heating and hot water supply device 200-1 of the present invention provides heating after the heat medium supplied from the heat source 21 is supplied to the heating source 320 or passes through the air conditioner 410. Inlet lines (201, 202, 203) that are supplied to the heating source (320), and a hot water heat exchanger (H) that exchanges heat between the heat medium passing through the inlet lines (201, 202, 203) and city water and is connected in parallel to the heating source (320) , It includes a heating hot water supply return line 280 that allows the heat medium that has passed through the heating source 320 and the heat medium that has passed through the hot water supply heat exchanger (H) to be returned to the heat source (21).

The air conditioner 410 and the heating and hot water supply device 200-1 constitute a heating and hot water supply system for each household.

The heat source 21 is a heat exchanger in which heat exchange is performed between the heat medium heated from the main heat source (not shown) that supplies heat to local or central heating and the heat medium flowing through the heating and hot water supply device 200-1 of the present invention. You can.

The heat medium heated in the heat source 21 is supplied to a plurality of households in the area or complex through the heat medium supply lines 110 and 111, and is returned to the heat source 21 through the heat medium return line 120.

The heating medium supply lines 110 and 111 include a main heating medium supply line 110 connecting the heat source 21 and the plurality of households, and an intra-household heating medium branched from the main heating medium supply line 110 and connected to each household. It may be composed of a supply line 111.

The air conditioner 410 is equipped so that one side is connected to the heat medium supply line 111 within the household and the other side is connected to the inflow line 202 of the heating and hot water supply device 200-1.

The inflow lines 201, 202, and 203 include a first inflow line 201 connected to the main heat medium supply line 110, a second inflow line 202 connected to the air conditioner 410, and the first inflow line 202 connected to the main heat medium supply line 110. The inflow line 201 and the second inflow line 202 are combined to form a third inflow line 203 connected to the heating source 320 or the hot water heat exchanger (H).

Accordingly, the heat medium heated from the heat source 21 and supplied to each household through the heat medium supply lines 110 and 111 sequentially flows through the first inflow line 201 and the third inflow line 203. flows into the heating and hot water supply device 200-1, or flows sequentially through the second inflow line 202 and the third inflow line 203 after passing through the air conditioner 410, thereby providing the heating and It flows into the hot water supply device (200-1).

At this time, a first flow control valve 291 and a second flow control valve 212 are provided on the first inflow line 201 and the second inflow line 202, so that the first inflow line 201 and The flow rate of the heat medium flowing through the second inlet line 202 can be adjusted.

Additionally, a temperature measuring unit 211 is provided on the third inlet line 203 to measure the temperature of the heat medium flowing through the third inlet line 203.

The heat medium flowing in through the first inflow line 201 flows into the third inflow line 203 at a high temperature, and the heat medium flowing in through the second inflow line 202 is in the air conditioner 410. When any one of heating or cooling and dehumidification mode is operated, heat is exchanged and the temperature is lowered and flows into the third inlet line 203.

Therefore, the first flow rate control valve 291 and the second flow rate control valve 212 are controlled according to the measured temperature value of the temperature measuring unit 211 to connect the first inflow line 201 and the second inflow. The flow rate of the heat medium flowing through the line 202 can be individually adjusted.

That is, by controlling the first flow control valve 291 and the second flow control valve 212, the supply of heating and hot water can be adjusted for each household, thereby improving the efficiency of heating and hot water supply and user convenience. .

At this time, in the convection heating and hot water mode or simultaneous heating mode or simultaneous heating and hot water mode described later, the heat medium flowing in through the first inflow line 201 and the heat medium flowing in through the second inflow line 202 are The temperature of the mixed heat medium that is mixed in the third inlet line 203 and flows through the third inlet line 203 by controlling the first flow rate control valve 291 and the second flow rate control valve 212. can be adjusted to provide a heat source of the desired temperature to each household.

In addition, a backflow prevention unit 292 is provided on the first inflow line 201, and the heat medium flowing through the second inflow line 202 and the third inflow line 203 is provided in the first inflow line 201. ) can prevent reflux.

The third inflow line 203 and the heating hot water return line 280 are connected to one side and the other side of the heating pipe 321 of the heating source 320 through the heating supply line 260 and the heating return line 270. are connected to each.

Therefore, the heat medium flowing in the third inflow line 203 flows into the heating pipe 321 through the heating supply line 260 to provide heating to the heating source 320, and the heating return line ( 270) and the heating hot water supply return line 280, the water is returned to the heat source 21 through the heat medium return line 120.

A heating flow control valve 271 may be provided on the heating return line 270 to adjust the opening degree of the heating return line 270.

The heating flow control valve 271 controls the flow rate of the heat medium supplied to the heating pipe 321 through the heating supply line 260 to set whether to supply heating to each household or to control the heating temperature. It can increase supply efficiency and user convenience.

In addition, the third inflow line 203 is connected to one side of the heat medium flow line (H-a) of the domestic hot water heat exchanger (H) through the domestic hot water supply line 220, and the heating hot water return water line 280 is connected to the domestic hot water supply line 220. It is connected to the other side of the heat medium flow line (H-a) of the domestic hot water heat exchanger (H) through line 230.

Therefore, the heat medium flowing in the third inflow line 203 flows into the heat medium flow line (H-a) of the hot water supply heat exchanger (H) through the hot water supply line 220 and flows into the hot water supply line (H). Provides hot water by exchanging heat with the city water flowing through the flow line (H-b), and sequentially flows through the hot water supply return line 230 and the heating hot water return line 280 to supply the heat source through the heat medium return line 120. It is returned to (21).

In addition, on one side and the other side of the municipal water flow line (H-b), there is a hot water supply line 250 connected to the faucet 310 in the household and a municipal water inflow line 240 connected to an external municipal water supply line (not shown), respectively. connected.

Accordingly, the municipal water supplied to each household through the municipal water supply line flows to the municipal water flow line (H-b) of the domestic hot water heat exchanger (H) through the municipal water inlet line 240 and flows into the municipal water flow line (H-b) of the domestic hot water heat exchanger (H). It is heated by exchanging heat with the heat medium flowing in the heat medium flow line (H-a), and flows to the faucet 310 through the hot water supply line 250 to be supplied as hot water.

A hot water supply flow rate control valve 221 may be provided on the hot water supply line 220 to control the opening degree of the hot water supply line 220.

The hot water flow rate control valve 221 controls the flow rate of the heat medium supplied to the hot water heat exchanger (H) through the hot water supply line 220 to set whether to supply hot water to each household or to control the hot water temperature. The efficiency of hot water supply and user convenience can be improved.

The hot water supply flow control valve 221 and the heating flow control valve 271 function independently, and the hot water supply flow control valve 221 and the heating flow control valve 271 are adjusted to provide heating or hot water to each household. It can be set to supply only one or both heating and hot water at the same time.

The first flow control valve 291, the second flow control valve 212, the heating flow control valve 271, and the hot water supply flow control valve 221 may be automatically adjusted by a control unit.

In the control unit, the required heat source supply amount and operation priority can be set according to the operation mode of the heating and hot water supply device 200-1.

The control unit may be a control unit of the heating and hot water supply device 200-1, and controls the control unit of the heating and hot water supply device 200-1 and the control unit of the air conditioner 410, respectively, to provide the heating and hot water supply device 200-1. It may be a control unit that controls the hot water supply system, or it may be a control unit of the heating and hot water supply system that integratedly controls the heating and hot water supply device 200-1 and the air conditioner 410.

When the heating and hot water supply system is controlled by the control unit, the air conditioner 410 or the heating and hot water supply device 200-1 is installed according to the operation mode of the heating and hot water supply system. Required heat source supply amount and operation priority can be set.

3 to 8, the operation mode of the heating and hot water supply system using the heating and hot water supply device 200-1 and the air conditioner 410 according to the first embodiment will be described.

The functions of the air conditioner 410 may include convection heating or convection cooling and dehumidification functions, and in the operation mode described later, convection heating is provided as a representative function of the air conditioner 410. Explain.

In addition, the heating provided to the heating source 320 may be floor heating or heating by a radiator, and in the operation mode described later, the case where floor heating is provided will be described as an example.

Referring to FIG. 3, a floor heating mode in which floor heating is supplied to the heating source 320 by the heating and hot water supply device 200-1 will be described.

According to the floor heating mode, the first flow control valve 291 is open (on), the second flow control valve 212 is closed (off), and the heating flow control valve 271 is open (on). ), the hot water supply flow control valve 221 is in a closed (off) state.

Accordingly, the heat medium heated from the heat source 21 and supplied to each household through the main heat medium supply line 110 is supplied to the first inflow line 201, the third inflow line 203, and the heating supply. The line 260 flows sequentially and is supplied to the heating pipe 321 to provide underfloor heating to the heating area 320, and the heating return line 270 and the heating hot water return line 280 are sequentially supplied. It flows and is returned to the heat source 21 through the heat medium return line 120.

The control unit may calculate the amount of heat required according to the set heating temperature and adjust the flow rate of the heat medium supplied to the heating pipe 321 by controlling the heating flow rate control valve 271.

Referring to FIG. 4, a hot water supply mode in which hot water is supplied through a faucet by the heating and hot water supply device 200-1 will be described.

According to the hot water supply mode, the first flow control valve 291 is open (on), the second flow control valve 212 is closed (off), and the heating flow control valve 271 is closed (off). , the hot water supply flow control valve 221 is in the open (on) state.

Accordingly, the heat medium heated from the heat source 21 and supplied to each household through the main heat medium supply line 110 is supplied to the first inflow line 201, the third inflow line 203, and the hot water supply line. The line 220 flows sequentially to provide hot water by exchanging heat with the municipal water in the domestic hot water heat exchanger (H), and the heat medium flows sequentially through the domestic hot water return line 230 and the heating hot water return line 280. Water is returned to the heat source 21 through the water return line 120.

The control unit may calculate the amount of heat required according to the set hot water temperature and adjust the flow rate of the heat medium supplied to the hot water supply heat exchanger (H) by adjusting the hot water supply flow rate control valve 221.

Referring to FIG. 5, the underfloor heating and hot water supply mode in which underfloor heating is supplied to the heating area 320 by the heating and hot water supply device 200-1 and hot water is supplied through a faucet will be described.

According to the floor heating and hot water supply mode, the first flow control valve 291 is open (on), the second flow control valve 212 is closed (off), the heating flow control valve 271 and the The hot water supply flow control valve 221 is in the open (on) state.

Accordingly, the heat medium heated from the heat source 21 and supplied to each household through the main heat medium supply line 110 sequentially flows through the first inflow line 201 and the third inflow line 203. Thus, it flows to the heating supply line 260 and the hot water supply line 220.

A portion of the heat medium supplied to the heating pipe 321 through the heating supply line 260 is transferred to the heating return line 270 and the heating hot water return line after supplying floor heating to the heating source 320. 280 flows sequentially and is returned to the heat source 21 through the heat medium return line 120.

The remaining part of the heat medium supplied to the hot water supply heat exchanger (H) through the hot water supply line 220 is exchanged with the city water to provide hot water, and then the hot water supply line 230 and the heating hot water water return line ( 280) flows sequentially and is returned to the heat source 21 through the heat medium return line 120.

The control unit calculates the amount of heat required according to the set floor heating temperature and hot water supply temperature, and adjusts the heating flow rate control valve 271 and the hot water supply flow rate control valve 221 to control the heating pipe 321 and the hot water supply heat exchanger ( The flow rate of the heat medium supplied to H) can be adjusted.

At this time, the control unit is set to perform hot water supply with priority over heating, so that heat medium equivalent to the required amount of heat according to the set hot water temperature is first supplied to the hot water supply heat exchanger (H), and the remaining heat medium is supplied to the heating pipe 321. It can be done to do so.

The priority supply of hot water ends when the floor heating and hot water supply modes are switched to the heating mode as the supply of hot water by the user's use of hot water ends.

Referring to FIG. 6, a simultaneous heating mode in which convection heating and floor heating are simultaneously supplied to the heating area 320 by the air conditioner 410 and the heating and hot water supply device 200-1 will be described.

According to the simultaneous heating mode, the first flow control valve 291, the second flow control valve 212, and the heating flow control valve 271 are opened (on), and the hot water supply flow control valve 221 is It is in a closed (off) state.

Accordingly, the heat medium heated from the heat source 21 and supplied to each household through the main heat medium supply line 110 is supplied to the heating and hot water supply device 200-1 through the first inflow line 201. flows into the air conditioner 410 and is simultaneously used for convective heating by being heat exchanged and then flows into the heating and hot water supply device 200-1 through the second inflow line 202.

The heat medium introduced through the first inlet line 201 and the heat medium introduced through the second inlet line 202 are mixed and flow to the third inflow line 203, and the heating supply line 260. After being supplied to the heating pipe 321 to provide underfloor heating to the heating area 320, it flows sequentially through the heating return water line 270 and the heating hot water supply return line 280 to the heat medium return line ( The water is returned to the heat source 21 through 120).

The control unit may calculate the amount of heat required according to the set floor heating temperature and control the flow rate of the heat medium supplied to the heating pipe 321 by adjusting the heating flow control valve 271.

At this time, the control unit is set to perform convection heating with priority over floor heating, and supplies the heat medium as much heat as necessary according to the set convection heating temperature to the air conditioner among the heat medium supplied to each household through the heat medium supply lines (110, 111). It may be supplied to 410 first, and the remaining heat medium and the heat medium that passed through the air conditioner 410 may be supplied to the heating and hot water supply device 200-1.

The convection heating priority supply ends as the indoor air temperature rises to the set temperature, and then the priority is switched to perform floor heating over convection heating, and the heat medium supply lines 110 and 111 are supplied to each household. Among the heat medium, the amount of heat required according to the set floor heating temperature may be first supplied to the heating and hot water supply device 200-1, and the remaining heat medium may be supplied to the air conditioner 410.

The priority supply of underfloor heating ends as the indoor temperature rises to the temperature set for underfloor heating.

Referring to FIG. 7, convection heating and hot water supply mode are provided in which convection heating is supplied to the heating area 320 by the air conditioner 410 and the heating and hot water supply device 200-1, and hot water is supplied through the faucet. Describe about.

According to the convection heating and hot water supply mode, the first flow control valve 291, the second flow control valve 212, and the hot water supply flow control valve 221 are opened (on), and the heating flow control valve 271 ) is in a closed (off) state.

Accordingly, the heat medium heated from the heat source 21 and supplied to each household through the main heat medium supply line 110 is supplied to the heating and hot water supply device 200-1 through the first inflow line 201. flows into the air conditioner 410 and is simultaneously used for convective heating by being heat exchanged and then flows into the heating and hot water supply device 200-1 through the second inflow line 202.

The heat medium flowing in through the first inflow line 201 and the heat medium flowing in through the second inflow line 202 are mixed and flow to the third inflow line 203, and the hot water supply line 220 After providing hot water by being supplied to the domestic hot water heat exchanger (H) and exchanging heat with the city water, it sequentially flows through the domestic hot water return water line 230 and the heating hot water return water line 280 to form the heat medium return line 120. It is returned to the heat source 21 through .

The control unit may calculate the amount of heat required according to the set hot water temperature and adjust the flow rate of the heat medium supplied to the hot water supply heat exchanger (H) by adjusting the hot water supply flow rate control valve 221.

At this time, the control unit is set to give priority to hot water supply over heating, and the heating and hot water supply device ( 200-1) first, and the remaining heat medium may be supplied to the air conditioner 410.

The priority supply of hot water is terminated when the convection heating and hot water supply mode is converted to a convection heating mode in which only convection heating by the air conditioner 410 is performed as the supply of hot water by the user's use of hot water is terminated.

Here, the convection heating mode means a state in which the heat medium flows along the same path as the state shown in FIG. 7, but hot water is not supplied through the faucet 310. In this case, the first flow control valve 291 is closed so that the heat medium does not flow in through the first inlet line 201, but flows into the heating and hot water supply device 200-1 only through the second inlet line 202. can do.

The convection heating and hot water supply mode is equally applied to the convection cooling and hot water mode or dehumidifying cooling and hot water supply mode in which the air conditioner 410 performs the convection cooling and dehumidification functions, where the control unit performs the heating and dehumidifying functions. The convection cooling temperature and indoor humidity set as standards for controlling the hot water supply system are applied.

Referring to FIG. 8, simultaneous heating is provided in which convection heating and floor heating are supplied to the heating area 320 by the air conditioner 410 and the heating and hot water supply device 200-1, and hot water is supplied through a faucet. and the hot water supply mode.

According to the simultaneous heating and hot water supply mode, the first flow control valve 291, the second flow control valve 212, the hot water supply flow control valve 221, and the heating flow control valve 271 are opened (on). ) state.

Accordingly, the heat medium heated from the heat source 21 and supplied to each household through the main heat medium supply line 110 is supplied to the heating and hot water supply device 200-1 through the first inflow line 201. flows into the air conditioner 410 and is simultaneously used for convective heating by being heat exchanged and then flows into the heating and hot water supply device 200-1 through the second inflow line 202.

The heat medium introduced through the first inlet line 201 and the heat medium introduced through the second inlet line 202 are mixed and flow to the third inlet line 203 to form the heating supply line 260 and the heat medium introduced through the second inlet line 202. It flows to the hot water supply line (220).

A portion of the heat medium supplied to the heating pipe 321 through the heating supply line 260 is transferred to the heating return line 270 and the heating hot water return line after supplying floor heating to the heating source 320. 280 flows sequentially and is returned to the heat source 21 through the heat medium return line 120.

The remaining part of the heat medium supplied to the hot water supply heat exchanger (H) through the hot water supply line 220 is exchanged with the city water to provide hot water, and then the hot water supply line 230 and the heating hot water water return line ( 280) flows sequentially and is returned to the heat source 21 through the heat medium return line 120.

The control unit calculates the amount of heat required according to the set floor heating temperature and hot water supply temperature, and adjusts the heating flow rate control valve 271 and the hot water supply flow rate control valve 221 to control the heating pipe 321 and the hot water supply heat exchanger ( The flow rate of the heat medium supplied to H) can be adjusted.

At this time, the control unit is set to give priority to hot water supply over heating, and the heating and hot water supply device ( 200-1) first, and the remaining heat medium may be supplied to the air conditioner 410.

The priority supply of hot water ends when the simultaneous heating and hot water supply modes are switched to the simultaneous heating mode as the supply of hot water by the user's use of hot water ends.

With reference to FIG. 9, a heating and hot water supply device 200-2 according to a second embodiment of the present invention will be described.

According to the second embodiment, the heating and hot water supply device 200-2 according to the present invention includes all the configurations according to the first embodiment, but the in-house heat medium supply line 111 supplies the heating and hot water. It is provided inside the device 200-2.

The first inflow line 201 may be branched from the intra-household heat medium supply line 111 inside the heating and hot water supply device 200-2.

Accordingly, the heat medium heated from the heat source 21 and supplied to each household through the main heat medium supply line 110 is supplied to the heat medium supply line 111 within the household inside the heating and hot water supply device 200-2. After flowing, it sequentially flows through the first inflow line 201 and the third inflow line 203, or passes through the air conditioner 410 and then flows through the second inflow line 202 and the third inflow line 203. flows sequentially and is supplied to the heating source 320 or the hot water heat exchanger (H).

In other words, the heating and hot water supply device 200-2 is configured to include all piping used for heating and hot water supply within the household, thereby simplifying the piping structure within the household.

In addition, according to the heating and hot water supply system using the heating and hot water supply device 200-2 and the air conditioner 410 according to the second embodiment, the operation mode described in FIGS. 3 to 8 can be applied. there is.

With reference to FIG. 10, a heating and hot water supply device 200-3 according to a third embodiment of the present invention will be described.

According to the third embodiment, the heating and hot water supply device 200-3 according to the present invention includes all the configurations according to the first embodiment, but includes a first hot water heat exchanger (H1) and a second hot water heat exchanger. It includes a hot water heat exchanger (H) consisting of (H2).

One side of the heat medium flow line (H1-a) of the first hot water heat exchanger (H1) is connected to the heat medium flow line (H2-a) and the heating return line 270 of the second hot water heat exchanger (H2), , the other side is connected to the heating hot water supply return line (280).

In addition, one side of the heat medium flow line (H2-a) of the second hot water heat exchanger (H2) is connected to the hot water supply line 220, and the other side is connected to the heat medium flow line of the first hot water heat exchanger (H1). Connected to (H1-a).

In addition, one side of the municipal water flow line (H1-b) of the first hot water heat exchanger (H1) is connected to the municipal water flow line (H2-b) of the second domestic hot water heat exchanger (H2), and the other side is connected to the municipal water flow line (H2-b) of the second domestic hot water heat exchanger (H2). Connected to line 240.

In addition, one side of the municipal water flow line (H2-b) of the second domestic hot water heat exchanger (H2) is connected to the hot water supply line 250, and the other side is the municipal water flow line of the first domestic hot water heat exchanger (H) ( Connected to H1-b).

Accordingly, the municipal water supplied to the municipal water flow line (H1-b) of the first domestic hot water heat exchanger (H1) through the municipal water inflow line 240 is the heat medium flow line ( It is primarily heated from the heat medium flowing through H1-a), and is supplied to the water flow line (H2-b) of the second hot water supply heat exchanger (H2) and the heat medium flow line (H2) of the second hot water heat exchanger (H2). After being secondarily heated from the heat medium flowing through -a), it flows to the faucet 310 through the hot water supply line 250 and is supplied as hot water.

In addition, the heat medium flowing through the hot water supply line 220 is supplied to the heat medium flow line (H2-a) of the second hot water supply heat exchanger (H2) and becomes a heat source for secondary heating of the municipal water, and the first hot water supply heat exchanger It is supplied to the heat medium flow line (H1-a) of the group (H2) and becomes a heat source for primary heating of the city water, and then flows to the heating hot water supply return line (280) to provide heat source (21) through the heat medium return line (120). It is refunded as

In addition, after supplying heating to the heating source 320, the heat medium flowing into the heating return line 270 is supplied to the heat medium flow line (H1-a) of the first hot water supply heat exchanger (H1) and is supplied to the heat medium flow line (H1-a) of the first hot water heat exchanger (H1). After becoming a heat source for heating, it flows to the heating hot water return line 280 and is returned to the heat source 21 through the heat medium return line 120.

That is, the city water is primarily heated using a relatively low temperature heat medium mixed with the heat exchanger heat exchanged in the second hot water heat exchanger H2 and the heat exchanger heat exchanged in the heating source 320 as a heat source, and the heating supply line ( By secondary heating the city water using the relatively high temperature heat medium supplied through 220) as a heat source, the heat loss of the heat medium returned through the heating hot water supply water return line 280 can be significantly reduced.

In addition, by additionally supplying the heat exchanged heat medium from the heating source 320 to the first hot water supply heat exchanger (H1), the amount of heat of the hot water heat medium of which the temperature has been relatively lowered after passing through the second hot water supply heat exchanger (H2) is reduced. It can replenish and increase the efficiency of hot water supply within the household.

In other words, by heating city water multiple times using the heat exchanged heat medium, heat loss from the heat medium can be significantly reduced and the efficiency of hot water supply within the household can be increased.

According to the heating and hot water supply system using the heating and hot water supply device 200-3 and the air conditioner 410 according to the third embodiment, the operation mode described in FIGS. 3 to 8 is applied, The heating medium heat-exchanged in the heating source 320 is supplied to the first hot water supply heat exchanger (H1) through the heating return water line 270, and the heating medium heat-exchanged in the second hot water supply heat exchanger (H2) and the heating source ( There is a difference in that the heat medium heat exchanged in 320) is mixed, exchanged heat in the first hot water supply heat exchanger (H), and then flows to the heating hot water return water line (280).

With reference to FIG. 11, a heating and hot water supply device 200-4 according to a fourth embodiment of the present invention will be described.

According to the fourth embodiment, the heating and hot water supply device 200-4 according to the present invention includes all the configurations according to the second embodiment, but includes the first hot water heat exchanger as described in the third embodiment. It includes a hot water supply heat exchanger (H) consisting of a group (H1) and a second hot water supply heat exchanger (H2).

In addition, according to the heating and hot water supply system using the heating and hot water supply device 200-4 and the air conditioner 410 according to the fourth embodiment, the operation mode described in FIGS. 3 to 8 is applied. , there is a difference as described in the third embodiment above.

As described above, according to the heating and hot water supply device according to the present invention, the installation space can be simplified and heat loss can be significantly reduced by supplying heating and hot water to each household using a two-pipe centralized hot water heating supply system. .

In addition, using the two-pipe centralized hot water heating supply system, heating and hot water can be supplied independently to each household, thereby increasing user convenience.

In addition, energy efficiency can be increased by providing heating and hot water within the household using the heat medium discharged from the air conditioner 410.

In addition, the efficiency of hot water and heating supply and user convenience can be increased by setting the supply of hot water and heating or adjusting the temperature for each household.

In addition, it is provided with a temperature measuring unit that measures the temperature of the incoming heat medium, and controls the first flow rate control valve or the second flow rate control valve and the heating flow rate control valve or the hot water supply flow rate control valve based on the measured temperature of the heat medium to provide heating and It can ensure that hot water is supplied at the optimal temperature.

The present invention is not limited to the above-described embodiments, and obvious modifications can be made by those skilled in the art without departing from the technical spirit of the present invention as claimed in the claims, and such modifications can be made by those skilled in the art. Implementation falls within the scope of the present invention.

21: heat source
200-1,200-2,200-3,200-4: Heating and hot water supply device
110: Main heat medium supply line 111: In-house heat medium supply line
120: Heat medium return line 201,202,203: Inflow line
201: first inflow line 202: second inflow line
203: second inlet line 212: second flow control valve
291: first flow control valve 211: temperature measuring unit
220: Hot water supply line 221: Hot water flow control valve
230: hot water return water line 240: municipal water inflow line
250: hot water supply line 260: heating supply line
270: Heating return line 271: Heating flow control valve
280: Heating hot water supply return line 292: Backflow prevention unit
H: Hot water supply heat exchanger H1: First hot water supply heat exchanger
H2: Second domestic hot water heat exchanger 310: Faucet within household
320: Heating area within the household 321: Heating pipe
410: Air conditioner

Claims (16)

An inflow line that allows the heat medium supplied from the heat source to be supplied to the heating source or to be supplied to the heating source after passing through an air conditioner;
A hot water heat exchanger in which heat is exchanged between the heat medium passing through the inlet line and the city water;
a heating hot water supply water return line that allows the heat medium that has passed through the heating source and the heat medium that has passed through the hot water supply heat exchanger to be returned to the heat source; and
a temperature measuring unit that measures the temperature of the heat medium flowing through the inlet line;
Including,
Adjusting the flow rate of the heat medium supplied to the inlet line based on the temperature of the heat medium measured by the temperature measuring unit so that heating and hot water are supplied at a set temperature,
a heating supply line that allows the heat medium passing through the inflow line to flow to the heating source;
A hot water supply line that allows the heat medium passing through the inflow line to flow into the hot water heat exchanger;
A hot water exchange line through which the heat exchanged heat exchanger flows in the hot water heat exchanger;
A heating return line through which the heat medium heated by the heating source flows;
Including more,
The hot water return water line and the heating water return line are connected to the heating hot water return water line,
The inflow line includes a first inflow line into which the heat medium heated from the heat source flows, a second inflow line connected to the air conditioner into which the heat medium discharged from the air conditioner flows, and the first inflow line and the The second inlet line is combined to include a third inlet line connected to the heating source or the hot water heat exchanger,
The temperature measuring unit measures the temperature of the heat medium flowing through the third inlet line,
a first flow control valve that adjusts the flow rate of the heat medium flowing through the first inflow line by adjusting the opening degree of the first inflow line;
a second flow control valve that adjusts the flow rate of the heat medium flowing through the second inflow line by adjusting the opening degree of the second inflow line;
A hot water supply flow rate control valve that controls the flow rate of the heat medium flowing through the hot water supply line;
A heating flow rate control valve that regulates the flow rate of the heat medium flowing through the heating return line; and
Based on the temperature of the heat medium measured by the temperature measuring unit, the first flow control valve, the second flow control valve, the heating flow control valve, and the hot water supply flow control valve are adjusted to supply heating and hot water at a set temperature. A control unit that controls to be possible;
Heating and hot water supply equipment including. delete delete According to paragraph 1,
A heat medium supply line is provided through which heat medium heated from the heat source is supplied to the air conditioner. Heating and hot water supply device characterized in that. According to paragraph 4,
Heating and hot water supply device, characterized in that the first inlet line branches off from the heat medium supply line. delete delete delete According to paragraph 1,
A heating and hot water supply device, characterized in that it is provided in the first inlet line and includes a backflow prevention unit that prevents the heat medium discharged from the air conditioner and introduced through the second inlet line from flowing back toward the heat source. . delete According to paragraph 1,
The hot water heat exchanger,
A first hot water heat exchanger that primarily heats the municipal water; and
A second hot water heat exchanger that secondarily heats the municipal water;
A heating and hot water supply device comprising a. According to clause 11,
A hot water supply line that allows the heat medium passing through the inflow line to flow into the hot water heat exchanger;
Including a heating return line through which the heat medium heated by the heating source flows,
The second hot water supply heat exchanger has one side connected to the hot water supply line and the other side connected to the first hot water supply heat exchanger, so that the heat medium flowing in from the hot water supply line exchanges heat with the city water and then flows into the first hot water heat exchanger. is done so as to;
The first hot water supply heat exchanger has one side connected to the second hot water supply heat exchanger and the heating return water line, and the other side connected to the heating hot water return water line, so that the heat medium flowing in from the second hot water supply heat exchanger and the heating return water line The heat medium flowing in from the heat exchanger is configured to flow into the hot water supply return water line after exchanging heat with the city water;
Heating and hot water supply device characterized in that. delete delete According to paragraph 1,
A heating and hot water supply device, wherein the control unit controls the heat medium passing through the inlet line to be supplied to the heating source and the hot water heat exchanger at the same time. According to paragraph 1,
In an operation mode in which the air conditioner and the heating and hot water supply device are operated simultaneously,
Heating and hot water supply, characterized in that the control unit is provided with a control unit that controls the heat medium to be supplied to the hot water heat exchanger for hot water supply prior to being supplied to the air conditioner or to the heating source through the inlet line. Device.