KR102047765B1 - Radiating and convection heating and cooling system using heat pump - Google Patents

Abstract

Disclosed is a radiation and convection cooling and heating system using a heat pump, which can improve comfort of an occupant by preventing dew condensation generated by a temperature difference of indoor air and an indoor floor even when performing indoor ventilation, indoor radiation, and convection cooling in the summer. The radiation and convection cooling and heating system using a heat pump can significantly increase indoor ventilation and cooling and heating efficiency while minimizing amounts of consumed electric energy to enable the occupant to enjoy pleasant indoor environment without the burden of maintenance fees.

Description

Radiation and Convection Heating and Heating System using Heat Pumps {RADIATING AND CONVECTION HEATING AND COOLING SYSTEM USING HEAT PUMP}

The present invention relates to a radiant and convective heating and heating system using a heat pump, and more particularly, to a radiant and convective heating and cooling system using a heat pump to automatically control the temperature and humidity of a room by simultaneously ventilating with floor heating and heating. It is about.

In general, in the case of heating of individual houses or apartment houses in Korea, pipes such as excel, steel pipes, and copper pipes are buried in the indoor floor in consideration of equipment installation conditions and living habits, and pipes with heated hot water supplied from boilers buried in the floor The floor heating method is mainly used to heat the floor by passing the inside to increase the temperature of the floor, and to heat the indoor air through heat exchange and natural convection through indoor air through radiant heating using the radiant heat.

Such floor heating directly heats the floor directly to indirectly heat the air, thereby providing a gentle heating effect to the user, and is also suitable for the life pattern of a user who mainly lives a sedentary lifestyle. The above-mentioned floor heating method has a relatively good thermal efficiency, is economical due to the low fuel cost or facility cost, and has the advantage that the failure rate is very low and the floor does not need frequent care, but the floor is heated by heat conduction. Not only is the temperature difference between the cotton and the indoor space severe, but to maintain the temperature, the indoor space must be sealed, so that the room is dry due to poor ventilation, low humidity in the air, and a long heating time for the floor. Longer time to reach, there was a problem that the room temperature control is difficult.

Meanwhile, in the case of such a floor heating method, as the thickness of the bottom surface becomes thicker due to the recent advancement of the floor finishing material, the heating efficiency of the floor surface is not only reduced due to the time required for heat exchange with the indoor air. In summer, there is a problem in that the installation cost of the device for indoor air conditioning is significantly increased by installing a separate cooling device to perform indoor cooling.

On the other hand, in recent years, due to changes in living patterns using chairs or sofas in the room, convection cooling and heating, which directly increases or decreases the room temperature through the convection phenomenon by supplying cool air or warmth directly to the room, is becoming more common. .

However, in the case of the convection air-conditioning as described above, the time for reaching indoor air at the set temperature required by the user is reduced and the temperature can be easily controlled. However, the air and heat are exchanged with the indoor air to raise and lower the temperature of the indoor air. By installing a separate device for supplying the device, not only space for installing the device is required, but additional cost is required depending on the device installation.

Accordingly, as disclosed in Korean Patent Publication No. 10-1031701 (Registration date April 20, 2011: Residential air-conditioning system using copying and convection), cold water and At the bottom of the hot water furnace, radiant heating and cooling is carried out. At the same time, cold water and hot water are supplied to the fan coil unit to introduce indoor air into the fan coil unit to supply cold and warm air by convection. The system is being developed and used.

In the case of a conventional heating and cooling system using radiation and convection as disclosed in the Republic of Korea Patent Publication No. 10-1031701, the cold water of which temperature is lowered by heat exchange in a heat exchanger during summer cooling is used to supply the first and second cooling water supply pipes. By moving to the water supply granularity through the part is moved to the fan coil unit to cool the indoor air, the other part is introduced into the water supply distributor is supplied to the bottom coil side to directly cool the indoor floor.

As described above, in the case of the conventional air-conditioning and heating system using a conventional radiation and convection, which supplies the cold water heat-exchanged in the heat exchanger directly to the indoor floor, the indoor floor is cooled. In the case of the cold water produced through the heat exchanger is typically low to about 7 ℃ when the cold water produced through the heat exchanger directly to the indoor floor there is a fatal problem that the condensation occurs on the indoor floor can not keep the room in a comfortable state.

Republic of Korea Patent Publication No. 10-1031701 (Registration Date: 2011. 04. 20.)

An object of the present invention is to provide a heat pump that can improve the comfort of the occupants by maintaining a uniform temperature throughout the room by allowing the indoor air and the air conditioning of the room floor and air conditioning at the same time. It is to provide a radiation and convection heating and cooling system used.

Another object of the present invention is a heat pump that can further improve the comfort of the occupants by preventing condensation due to the temperature difference between the indoor air and the indoor floor even when indoor ventilation, indoor radiation and convection cooling in the summer. It is to provide a radiative and convection heating and heating system using.

Another object of the present invention is to control the temperature of the outside air supplied to the room by using the waste heat of the bet discharged to the outside during the ventilation, the heat pump is a heat source to the waste heat that is discarded to the outside after operating the ventilation unit The present invention provides a radiant and convective heating and cooling system using a heat pump that can significantly save electric energy by enabling the heat pump to significantly improve its performance.

Other detailed objects of the present invention will be apparently understood and understood by those skilled in the art through the detailed contents described below.

In order to achieve the above object, the present invention is heat exchanged with a heat source to increase the temperature of the water to produce hot water or to lower the temperature of the heat pump to produce cold water, and the bet discharged from the indoors and outdoors to be supplied to the indoors A ventilation module for exhausting the indoor air that has been heat-exchanged with the outdoor air by increasing or decreasing the temperature of the outdoor air supplied to the room by using the waste heat of the internal air discharged to the outside by exchanging the outdoor air with the heat; It is connected to the pump and the ventilation module to supply hot or cold water produced by the heat pump to the ventilation module side by heat exchange with the outside air supplied to the room where the temperature is elevated or lowered primarily by the ventilation module to External temperature control module for raising or lowering the temperature secondly, and the heat pump connected to the heat pump The temperature of the water supplied by the heat pump heat-exchanged with the indoor air is set at the same time as the temperature of the indoor air is raised or lowered by the heat exchange of the indoor air with the hot or cold water produced by the pump. When the water is less than or equal to the heat pump is introduced into the heat pump without supplying the water heat exchanged to the floor, the indoor air only when the temperature of the water supplied by the heat pump heat exchanged with the indoor air exceeds the set temperature The present invention provides a radiant and convective heating and cooling system using a heat pump including a convection and radiant heating and heating module for supplying heat-exchanged water to the floor to perform floor cooling and inflow to a heat pump.

For example, the ventilation module is a bet discharge line is provided with a plurality of air discharge fans to discharge the bet from the indoor to the outside, a fresh air supply line is provided with a plurality of outside air supply fan to supply the outdoor air from the outdoor to the indoor, and the bet It is connected to the discharge line and the outside air supply line by using the waste heat of the bet discharged to the outside by exchanging the bet discharged from the indoor to the outdoor through the bet discharge line and the outdoor air supplied to the indoor through the outside air supply line It may include a ventilation unit for raising or lowering the temperature of the outside air supplied to the room.

In addition, the ventilation module may further include a waste heat source supply line for exhausting the bet heat exchanged with the outside to the heat pump through the ventilation unit so that the heat pump can use the bet heat exchanged with the outside. It may be.

For example, the outside air temperature control module is installed on the outside air supply line of the ventilation module to heat exchange the outdoor air primarily heat exchanged with the hot water or cold water produced by the heat pump, Coil box for raising or lowering the temperature of the outside air secondly, and the hot water or cold water produced by the heat pump and the air flowing into the coil box through the coil box to exchange heat with the coil box and the heat pump A first cold and hot water supply line connected to supply hot or cold water produced by the heat pump to the coil box, and a first cold and hot water return to return hot or cold water, which is heat exchanged with outside air, through the coil box to the heat pump. It may include a line.

For example, the convection and radiant air-conditioning module receives a hot or cold water produced by the heat pump and exchanges heat with indoor air to raise or lower the temperature of the indoor air so that the fan coil is disposed indoors. The unit, the heat pump and the fan coil unit are connected to each other to supply hot or cold water produced by the heat pump to the fan coil unit, which is sucked by the fan coil unit and discharged back into the room. The second cold and hot water supply line to be exchanged, and the hot and cold water heat exchanged with the indoor air through the fan coil unit through the bottom and then returned to the heat pump to perform the bottom cooling and heating A second returning line and the second cold and hot water returning line so that water in the second cold and hot water returning line can be returned to the heat pump without passing through the bottom; Bypass temperature connected to the cold and hot water return line, and the temperature of the water in the second cold and hot water return line by detecting the temperature of the water in the second cold and hot water return line below the set temperature, the water in the second cold and hot water return line to the bottom Condensation is prevented from occurring at the bottom by being returned to the heat pump through the bypass line without being supplied. When the temperature of the water in the second cold / hot water return line exceeds a set temperature, the water in the second cold / hot water return line is removed. It may include a condensation prevention unit for supplying to the floor through the second cold and hot water return line to perform a floor cooling and heating to return to the heat pump.

Here, the condensation preventing unit is a temperature sensor installed on the second cold and hot water return line to detect the temperature of hot water or cold water returned to the heat pump side through the second cold and hot water return line, and the bypass line and The temperature of the water in the second hot and cold water return line is connected to the direction switching valve installed on the second cold and hot water line, and the temperature of the water set in the second cold and hot water return line detected by the temperature sensor compared with the water temperature set When the temperature is lower than the set temperature, the direction switching valve is switched so that the water in the second cold / hot water return line is not supplied to the floor and is returned to the heat pump through the bypass line to prevent condensation from occurring on the floor. The second cold temperature when the temperature of the water in the second cold / hot water return line exceeds a set temperature; It may include a control unit for switching the directional control valve so that the water in the water return line is supplied to the bottom through the second cold and hot water return line to perform a floor cooling and heating to flow into the heat pump.

As described above, the radiation and convection heating and cooling system using a heat pump according to an embodiment of the present invention discharges indoor air to the outside through a bet exhaust line of the ventilation module and simultaneously supplies fresh outdoor air to the indoor air through an external air supply line. By supplying the indoor ventilation and supplying hot or cold water generated by operating the heat pump to the fan coil unit for heat exchange with the indoor air, convection cooling and heating of the indoor air is performed, and heat exchange with the indoor air. After the hot water or cold water discharged from the fan coil unit is passed through the building floor through the second hot and cold water return line so that radiant cooling and heating of the building floor can be simultaneously performed.

As described above, the radiant and convective heating and cooling system using a heat pump according to an embodiment of the present invention allows the radiant heating and cooling of the floor of a building to be controlled at the same time by controlling the temperature of indoor air quickly through convection with only one device. In addition to reducing the installation cost of the device for the, it is possible to significantly improve the comfort of the occupants by maintaining a uniform temperature distribution throughout the indoor space.

In addition, the radiation and convection heating and heating system using a heat pump according to an embodiment of the present invention is heat-exchanged with the waste heat of the internal air discharged to the outside through the ventilation unit during the ventilation, the indoor temperature is primarily controlled In addition to the flow of electricity into the heat pump, the bet waste that is discarded to the outside after the ventilation unit is operated is discharged to the heat pump side, so that the heat pump waste heat can be used as a heat source, thereby significantly improving the performance of the heat pump. Significantly reduce the effect of the indoor ventilation and air conditioning can be carried out at a lower cost.

In addition, the radiant and convective heating and cooling system using a heat pump according to an embodiment of the present invention is produced by a heat pump during summer cooling and supplied to a fan coil unit through a second cold / hot water supply line and heat exchanged with indoor air. When it is detected that the temperature of the cold water in the second cold / hot water return line discharged to the second cold / hot water return line exceeds the dew point temperature at which no dew condensation is generated by a temperature sensor, the cold water discharged to the second cold / hot water return line The radiant cooling of the floor passes through the cold and hot water return line, allowing it to flow into the heat pump.

Meanwhile, the temperature of the cold water in the second cold / hot water return line, which is produced by the heat pump during summer cooling and supplied to the fan coil unit through the second cold / hot water supply line, is heat exchanged with the indoor air, and is discharged to the second cold / hot water return line. If it detects that the dew point temperature is lower than the dew point by the detection sensor, the control unit is directed so that the cold water discharged to the second hot and cold water return line can flow into the heat pump through the bypass line without passing through the floor of the building. The switching valve is switched.

Therefore, the radiant and convective heating and cooling system using a heat pump according to an embodiment of the present invention is convective cooling and indoor floor of indoor air without fear of condensation caused by the temperature difference between the indoor air and the indoor floor even during summer cooling. By allowing radiant cooling to be carried out at the same time, the comfort of the occupants can be further improved.

Ultimately, the radiant and convective heating and cooling system using a heat pump according to an embodiment of the present invention greatly improves indoor ventilation and heating and cooling efficiency while minimizing the amount of electric energy consumed, so that the occupants can maintain a more comfortable indoor environment without burden of maintenance costs. By doing so, it is effective to maximize customer satisfaction.

Other effects of the present invention will be apparent to and understood by those skilled in the art through the following detailed description or in the course of carrying out the present invention.

1 is a schematic diagram for explaining a radiation and convection heating and heating system using a heat pump according to an embodiment of the present invention
Figure 2 is a view for explaining a process of heating at the same time with the indoor ventilation using a radiant and convection air-conditioning system using a heat pump according to an embodiment of the present invention
3 is a view for explaining the process of the indoor cooling by the radiant and convection air-conditioning system using a heat pump according to an embodiment of the present invention when the temperature of the cold water heat exchanged with the fan coil unit exceeds the dew point temperature
4 is a view for explaining a process of cooling the room by the radiant and convection air-conditioning system using a heat pump according to an embodiment of the present invention when the temperature of the cold water heat exchanged with the fan coil unit is below the dew point temperature.

As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "having" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described in the specification, and that one or more other features It should be understood that it does not exclude in advance the possibility of the presence or addition of numbers, steps, actions, components, parts or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art.

Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

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

Figure 1 is a schematic diagram for explaining a radiation and convection heating system using a heat pump according to an embodiment of the present invention.

Referring to Figure 1, the radiation and convection heating and heating system 100 using a heat pump according to an embodiment of the present invention is a heat pump 110, a ventilation module 120, an outside air temperature control module 130, and convection and Radiation heating and cooling module 140 may be included.

The heat pump 110 is heat exchanged with a heat source to increase the temperature of the water to produce hot water or to lower the temperature of the water to produce cold water.

The heat pump 110 may use external air heat or geothermal heat as a heat source.

The ventilation module 120 heats or lowers the temperature of the outdoor air supplied to the room by using the waste heat of the internal air discharged to the outside by internally exchanging the indoor air supplied from the indoor to the outdoor. At the same time, it is possible to exhaust the bet exchanged with the outside air to the outside.

For example, the ventilation module 120 may include an internal air discharge line 121, an external air supply line 122, and a ventilation unit 123.

The bet discharge line 121 may discharge the bet from the indoor to the outdoor, and a plurality of bet discharge fans 121a may be provided on the bet discharge line 121 to suck the indoor air and exhaust the outdoor air. Can be.

The outdoor air supply line 122 may supply external air from the outdoor to the indoor, and a plurality of external air supply fans 122a may be provided on the external air supply line 122 to suck outdoor air and supply the outdoor air to the indoor. have.

The ventilation unit 123 is connected to the internal air discharge line 121 and the external air supply line 122 through the internal air and the external air supply line 122 discharged from the indoor to the outdoor through the internal air discharge line 121. By exchanging heat to the outside air supplied from the outdoor to the indoor, the waste heat of the internal air discharged to the outside may be used to increase or decrease the temperature of the external air supplied to the room primarily.

In addition, the ventilation module 120 may further include a waste heat source supply line 124.

The waste heat source supply line 124 is a heat exchanged bet with the outside through the ventilation unit 123 so that the heat pump 110 can be used as a heat source for the heat exchanged to the outside the heat pump 110 By exhausting to the side to improve the performance of the heat pump (110).

That is, the waste heat source supply line 124 exhausts the bet discharged to the heat pump 110 after being exchanged with the outside air to the heat pump 110 to exchange heat with the heat pump 110 at a temperature lower than the outdoor air temperature in summer. In the winter, the internal temperature of the heat pump 110 may be heat exchanged with the heat pump 110 to significantly improve the performance of the heat pump 110.

The outside air temperature control module 130 is connected to the heat pump 110 and the ventilation module 120 to supply hot or cold water produced by the heat pump 110 to the ventilation module 120 to provide the ventilation module. By heat exchange (120) with the outside air supplied to the room primarily the temperature is raised or lowered so that the temperature of the outdoor air can be raised or lowered secondary.

For example, the outside air temperature control module 130 may include a coil box 131, a first cold / hot water supply line 132, and a first cold / hot water return line 133.

The coil box 131 may be installed on the outside air supply line 122 of the ventilation module 120. The coil box 131 heats or exchanges the outdoor air primarily heat exchanged with the bet discharged to the outside with hot or cold water produced by the heat pump 110 to raise or lower the temperature of the outdoor air secondly. Make it work.

The first cold and hot water supply line 132 is the coil box so that the hot water or cold water produced by the heat pump 110 and the outdoor air flowing into the coil box 131 passes through the coil box 131 for heat exchange. 131 and the heat pump 110 are connected to supply the hot or cold water produced by the heat pump 110 to the coil box 131.

The first cold and hot water return line 133 is the coil box 131 and the heat pump 110 to return the hot or cold water exchanged with the outside air through the coil box 131 to the heat pump 110. Can be connected to each other.

The convection and radiant heating and cooling module 140 is connected to the heat pump 110 to heat-exchange the indoor air with hot or cold water produced by the heat pump 110 to raise or lower the temperature of indoor air. Allow for resupply.

At the same time, the convection and radiant heating and cooling module 140 supplies the water heat exchanged with the indoor air to the floor of the building when the temperature of the water supplied by the heat pump 110 heat exchanged with the indoor air is lower than a set temperature. The heat pump 110 is introduced into the heat pump 110, and the water heat-exchanged with the indoor air to the floor of the building only when the temperature of the water supplied by the heat pump 110 heat-exchanged with the indoor air exceeds a set temperature. After supplying floor heating and cooling to be introduced to the heat pump 110.

For example, the convection and radiant heating and cooling module 140 includes a fan coil unit 141, a second cold / hot water supply line 142, a second cold / hot water return line 143, a bypass line 144, and a condensation prevention unit. 145 may include.

The fan coil unit 141 may be disposed indoors to receive hot or cold water produced by the heat pump 110 and exchange heat with indoor air to raise or lower the temperature of the indoor air to supply the indoor air. .

The second cold / hot water supply line 142 connects the heat pump 110 and the fan coil unit 141 to supply hot or cold water produced by the heat pump 110 to the fan coil unit 141. By doing so, the fan coil unit 141 may be exchanged with the indoor air which is sucked by the fan coil unit 141 and discharged back to the room.

The second cold / hot water return line 143 connects the heat pump 110 and the fan coil unit 141 with each other to allow hot or cold water, which is heat exchanged with indoor air, through the fan coil unit 141 to pass through the floor. After the return to the heat pump 110 to enable the floor heating and cooling.

The bypass line 144 is connected to the second cold / hot water return line 143 to allow the water in the second cold / hot water return line 143 to be returned to the heat pump 110 without passing through the building floor.

The dew condensation prevention unit 145 detects the temperature of the water in the second cold / hot water return line 143 and the second cold / hot water return line 143 when the temperature of the water in the second cold / hot water return line 143 is lower than a set temperature. ) Is not supplied to the building floor and is returned to the heat pump 110 through the bypass line 144, and when the temperature of the water in the second cold and hot water return line 143 exceeds the set temperature, 2 supply the water in the cold and hot water return line 143 to the floor of the building through the second cold and hot water return line 143 to perform the floor cooling and heating to return to the heat pump 110.

For example, the condensation preventing unit 145 may include a temperature sensor 145a, a direction switching valve 145b, and a controller 145c.

The temperature sensor 145a may be installed on the second cold / hot water return line 143 to detect a temperature of hot or cold water returned to the heat pump 110 through the second cold / hot water return line 143. Can be.

For example, the temperature sensor 145a is installed on the second cold / hot water return line 146 so as to be located between the fan coil unit 141 and the direction switching valve 145b, and thus the fan coil unit 141. After the heat exchange with the indoor air through the second cold and hot water return line 143 to detect the temperature of hot water or cold water discharged through.

The direction switching valve 145b is installed on the second cold / hot water return line 143 to be connected to the bypass line 144 and the second cold / hot water return line 143 sensed by the temperature sensor 145a. The water in the second cold / hot water return line 143 is controlled by the controller 145c to be returned to the heat pump 110 through the bypass line 144 according to the temperature of the hot or cold water in Water in the cold and hot water return line 143 may be controlled by the controller 145c to be supplied to the building floor through the second cold and hot water return line 143 to perform floor cooling and heating and then return to the heat pump 110. .

The controller 145c may be connected to the temperature sensor 145a and the direction switching valve 145b.

The control unit 145c as described above receives the temperature of the water in the second cold / hot water return line 143 detected by the temperature sensor 145a and compares the temperature of the preset water to the second cold / hot water return line 143. If it is determined that the temperature of the water in the) is less than the temperature of the set water, the direction switching valve 145b is switched so that the water in the second cold and hot water return line 143 is returned to the heat pump 110 through the bypass line 144. In order to prevent condensation from occurring on the floor of the building during indoor cooling, and when it is determined that the temperature of the water in the second cold / hot water return line 143 exceeds a set temperature, the water in the second cold / hot water return line 143 is discharged. 2 is supplied to the floor of the building through the cold and hot water return line 143 to perform the floor cooling and heating to switch the direction switching valve (145b) to be introduced to the heat pump (110).

In addition, the radiation and convection heating and cooling system 100 using a heat pump according to an embodiment of the present invention is disposed in the building control sensor that can sense the room temperature, humidity, carbon dioxide amount and deliver it to the control unit (145c). The unit 150 may further include.

The room temperature, humidity, and carbon dioxide amount sensed by the control sensor unit 150 are transferred to the control unit 145c, and the control unit 145c detects the room temperature, humidity, Based on the amount of carbon dioxide, the heat pump 110, the ventilation module 120, the outside air temperature control module 130, the convection and radiant heating and cooling module 140 are controlled to match the room temperature, humidity, and carbon dioxide amount with a preset value. It can be adjusted automatically to improve the health and comfort of the occupants.

With reference to Figures 2 to 3 will be described the operation and effect of the radiation and convection heating system using a heat pump according to an embodiment of the present invention.

First, with reference to Figure 2 will be described a process of heating at the same time ventilation and using a radiation and convection heating system using a heat pump according to an embodiment of the present invention.

2 is a view for explaining a process of heating at the same time as the indoor ventilation using a radiant and convection air-conditioning system using a heat pump according to an embodiment of the present invention.

2, in order to perform indoor ventilation using the radiation and convection heating and cooling system 100 using the heat pump according to an embodiment of the present invention, the air exhaust fan 121a and the air supply fan of the ventilation module 120 The indoor air is sucked by the bet discharge fan 121a and discharged to the outside through the ventilation unit 123 through the bet discharge line 121, and the outdoor air is supplied to the outside air supply fan 122a. Inhaled by) is introduced into the room through the ventilation unit 123 through the outside air supply line 122.

At this time, the outdoor air introduced from the outdoor to the indoor through the outdoor air supply line 122 and the indoor air discharged from the indoor to the outdoor through the internal air discharge line 121 are heat exchanged while passing through the ventilation unit 123 to be indoors indoors. The outdoor air introduced into is heated primarily by the waste heat of the internal air discharged from the indoor to the outdoor, and the temperature is raised to supply the indoor air.

In addition, the bet that is primarily heat exchanged through the outdoor unit and the ventilation unit 123 introduced into the indoor from the outdoor air supply line 122 is exhausted to the heat pump 110 through the waste heat source supply line 124. By allowing the heat pump 110 to use the waste heat of the bet as a heat source, it is possible to improve the efficiency of the heat pump 110.

That is, the waste heat source supply line 124 exhausts the bet at a temperature higher than the temperature of the outside air during the winter heating to the heat pump 110 so that the waste heat that is discarded from the indoor air is discharged from the indoor to the outdoor during ventilation is heat pump 110. By heat exchange with the heat pump 110 to significantly improve the heating performance.

Meanwhile, as the heat pump 110 is operated, hot water heated by heat exchange with the heat pump 110 is supplied to the water supply header 111, and a part of the hot water supplied to the water supply header 111 supplies the first cold / hot water. It is supplied to the coil box 131 side through the line 132, the remaining part is supplied to the fan coil unit 141 side through the second cold and hot water supply line 142.

Here, the hot water supplied to the coil box 131 through the first cold and hot water supply line 132 is primarily heat exchanged with the bet discharged from the indoor to the outdoor through the ventilation unit 123 and then the coil box ( 131) is heat-exchanged with the outdoor air introduced into the room from the outdoor introduced to the side to heat the outdoor air to increase the temperature.

On the other hand, the outside air heat is exchanged with the hot water supplied to the coil box 131 through the first cold and hot water supply line 132 while passing through the coil box 131 to the room through the outside air supply fan 122a By supplying, indoor ventilation is performed.

In addition, the hot water heat exchanged with the outside air supplied to the coil box 131 through the outside air supply line 142 sequentially through the first cold and hot water return line 133 and the return header 112 toward the heat pump 110. After being introduced and reheated, the water supply header 111 and the first cold / hot water supply line 132 are supplied to the coil box 131 to exchange heat with outside air, and then the first cold / hot water return line 133 and the return header 112. Through the process of re-introducing the heat pump 110 again through.

Meanwhile, the hot water supplied to the fan coil unit 141 through the second cold / hot water supply line 142 is heated by the fan coil unit 141 and then heat exchanged with the indoor air discharged back into the room to heat the indoor air. After passing through the second cold / hot water return line 143 and the return header 112, the heat pump 110 is sequentially introduced into the heat pump 110 and reheated, followed by a fan through the water supply header 111 and the second cold / hot water supply line 142. After being supplied to the coil unit 141 and heat exchanged with the indoor air, the process of reflowing into the heat pump 110 through the second cold / hot water return line 143 and the return header 112 is repeatedly performed.

In this case, the temperature sensor 145a installed on the second cold / hot water return line 143 is heat-exchanged with the indoor air through the fan coil unit 141 and then flows into the second cold / hot water return line 143. By sensing the temperature of the transmission to the control unit (145c).

On the other hand, the control unit 145c determines whether the temperature of the hot water in the second cold / hot water return line 143 detected and transmitted by the temperature sensor 145a exceeds or exceeds the set temperature. If it is determined by the control unit 145c that the temperature of the hot water in the second cold / hot water return line 143 exceeds the set temperature, the control unit 145c exchanges hot water with indoor air through the fan coil unit 141. After controlling the floor heating through the second cold and hot water return line 143 through the bottom of the building to control the direction switching valve 145b to be re-introduced into the heat pump 110 through the return header (112).

That is, when it is determined that the temperature of the hot water in the second cold / hot water return line 143 sensed and transmitted by the temperature sensor 145a by the controller 145c exceeds the dew point temperature, the controller 145c determines the fan. The hot water heat exchanged with the indoor air through the coil unit 141 passes through the floor of the building through the second cold / hot water return line 143 to perform floor heating, and then reflows into the heat pump 110 through the return header 112. To control the direction change valve 145b.

As described above, when heating is performed simultaneously with ventilation using the radiant and convective heating and cooling system 100 using the heat pump according to an embodiment of the present invention, the second pump is supplied by the heat pump 110 to supply hot and cold water. In the case of hot water supplied to the fan coil unit 141 through the line 142 and heat exchanged with the indoor air, the hot water flowing into the second cold / hot water return line 143 is always maintained above the dew point temperature, thereby controlling the controller 145c. The hot water heat exchanged with the indoor air through the fan coil unit 141 through the second cold and hot water return line 143 through the building floor to perform the floor heating, the heat pump 110 through the return header 112 The direction switching valve 145b is controlled to be re-introduced into.

Next, with reference to Figures 3 to 4 will be described a process of performing cooling and simultaneous cooling using a radiant and convection air-conditioning system using a heat pump according to an embodiment of the present invention.

3 is a view for explaining a process of cooling the room by the radiant and convection air-conditioning system using a heat pump according to an embodiment of the present invention when the temperature of the cold water heat exchanged with the fan coil unit exceeds the dew point temperature, 4 is a view for explaining a process of cooling the room by the radiant and convection air-conditioning system using a heat pump according to an embodiment of the present invention when the temperature of the cold water heat exchanged with the fan coil unit is below the dew point temperature.

3, in order to perform indoor ventilation using the radiation and convection heating and cooling system 100 using the heat pump according to an embodiment of the present invention, the air discharge fan 121a and the air supply fan of the ventilation module 120 are provided. The indoor air is sucked by the bet discharge fan 121a and discharged to the outside through the ventilation unit 123 through the bet discharge line 122, and the outdoor air is supplied to the outside air supply fan 122a. Inhaled by) is introduced into the room through the ventilation unit 123 through the outside air supply line 122.

At this time, the outdoor air introduced from the outdoor to the indoor through the outdoor air supply line 122 and the indoor air discharged from the indoor to the outdoor through the internal air discharge line 121 are heat exchanged while passing through the ventilation unit 123 to be indoors indoors. The outdoor air introduced into is cooled primarily by the waste heat of the indoor air discharged from the indoor to the outdoor, and the temperature is lowered to supply the indoor air.

In addition, the bet that is primarily heat exchanged through the outdoor unit and the ventilation unit 123 introduced into the indoor from the outdoor air supply line 122 is exhausted to the heat pump 110 through the waste heat source supply line 124. By allowing the heat pump 110 to use the waste heat of the bet as a heat source, it is possible to improve the efficiency of the heat pump 110.

That is, the waste heat source supply line 124 cools the heat pump 110 by exchanging heat with the heat pump 110 by exhausting a bet at a temperature lower than the temperature of the outside air during cooling in summer. It can greatly improve performance.

Meanwhile, as the heat pump 110 is operated, cold water cooled by heat exchange with the heat pump 110 is supplied to the water supply header 111, and a part of the cold water supplied to the water supply header 111 is supplied with the first cold / hot water. It is supplied to the coil box 131 side through the line 132, the remaining portion is supplied to the fan coil unit 141 side through the second cold and hot water supply line 142.

Here, the cold water supplied to the coil box 131 through the first cold and hot water supply line 132 is primarily heat exchanged with the bet discharged from the indoor to the outdoor through the ventilation unit 123 and then the coil box ( 131) is heat-exchanged with the outdoor air introduced into the room from the outdoor introduced into the side to cool down the outdoor air to lower the temperature.

On the other hand, the outside air heat is exchanged with the cold water supplied to the coil box 131 through the first cold and hot water supply line 132 while passing through the coil box 131 to the room through the outside air supply fan 122a By supplying, indoor ventilation is performed.

In addition, the cold water heat exchanged with the outside air supplied to the coil box 131 through the outside air supply line 122 sequentially passes through the first cold and hot water return line 133 and the return header 112 to the heat pump 110. After being introduced and reheated, the water supply header 111 and the first cold / hot water supply line 132 are supplied to the coil box 131 to exchange heat with outside air, and then the first cold / hot water return line 133 and the return header 112. Through the process of re-introducing the heat pump 110 again through.

Meanwhile, the cold water supplied to the fan coil unit 141 through the second cold / hot water supply line 142 is exchanged with the indoor air that is sucked by the fan coil unit 141 and discharged back into the room to cool the indoor air. After the cooling, the second cold and hot water return line 143 and the return header 112 are sequentially introduced into the heat pump 110 and cooled again, and then through the water supply header 111 and the second cold and hot water supply line 142. After being supplied to the fan coil unit 141 and heat exchanged with the indoor air, the process of reflowing into the heat pump 110 through the second cold / hot water return line 143 and the return header 112 is repeatedly performed.

At this time, the temperature sensor 145a installed on the second cold / hot water return line 143 is exchanged with indoor air through the fan coil unit 141, and then the cold water introduced into the second cold / hot water return line 143 is provided. It senses the temperature of the transmission to the control unit (145c).

Meanwhile, the controller 145c may determine whether the temperature of the cold water in the second cold / hot water return line 143 detected and transmitted by the temperature sensor 145a exceeds or exceeds the set temperature. If it is determined by the controller 145c that the temperature of the cold water in the second cold / hot water return line 143 exceeds the set temperature, the controller 145c exchanges heat with indoor air through the fan coil unit 141. To control the directional control valve 145b to allow the cold water to pass through the bottom of the building through the second cold / hot water return line 143 to cool the floor, and then flow back into the heat pump 110 through the return header 112. do.

That is, when it is determined that the temperature of the cold water in the second cold / hot water return line 143 detected and transmitted by the temperature sensor 145a by the control unit 145c exceeds the dew point temperature, the control unit 145c may determine the fan. Cold water heat-exchanged with the indoor air through the coil unit 141 passes through the floor of the building through the second cold and hot water return line 143 to cool the floor, and then flows back into the heat pump 110 through the return header 112. To control the direction change valve (145b).

On the other hand, if it is determined that the temperature of the cold water in the second cold / hot water return line 143 sensed and transmitted by the temperature sensor 145a by the controller 145c is below a set temperature, that is, below a dew point temperature, the controller 145c switches the direction switching valve 145b such that the cold water heat-exchanged with the indoor air through the fan coil unit 141 does not pass through the building floor through the second cold / hot water return line 143.

Therefore, the cold water below the dew point temperature introduced into the second cold / hot water return line 143 after being heat exchanged with the indoor air through the fan coil unit 141 is bypassed by the control valve 145b by the control valve 145b. As it is switched to the line 144 as shown in Figure 4 through the bypass line 144 is introduced into the return header 112 without passing through the building floor is supplied to the heat pump 110.

As described above, the radiant and convective heating and cooling system 100 using the heat pump according to an embodiment of the present invention is produced by heat exchange with the heat pump 110 during indoor cooling in the summer, and then supplied to the fan coil unit 141 to supply indoor air. When it is determined that the temperature of the cold water exchanged with the dew point temperature is lower than the dew point temperature at which dew condensation may occur, the second cold / hot water return line is switched by the controller 145c to be connected to the bypass line 144. By allowing the cold water in 143 to flow into the heat pump 110 through the bypass line 144 without passing through the floor of the building, it is possible to prevent condensation which is the biggest problem of floor cooling during indoor cooling in summer. Keep it in a comfortable state.

As described above, the radiation and convection heating and cooling system 100 using the heat pump according to one embodiment of the present invention discharges indoor air to the outside and supplies external air at the same time through the internal air discharge line 121 of the ventilation module 120. By supplying fresh outdoor air to the room through the line 122 for indoor ventilation, the heat pump 110 is operated to supply hot or cold water generated to the fan coil unit 141 to exchange heat with the indoor air. Convection cooling and heating of the indoor air, and the hot or cold water discharged from the fan coil unit 141 after being heat exchanged with the indoor air passes through the building floor through the second cold / hot water return line 143 to the building floor. Even radiant heating and cooling of the system can be achieved simultaneously.

As described above, the radiation and convection heating and cooling system 100 using the heat pump according to one embodiment of the present invention quickly controls the temperature of indoor air through convection with only one device, and at the same time, radiant heating and heating of the building floor is made. In addition to reducing the installation cost of the device for indoor cooling and heating, it is possible to significantly improve the comfort of the occupants by maintaining a uniform temperature distribution throughout the indoor space.

In addition, the radiation and convection heating and heating system 100 using a heat pump according to an embodiment of the present invention is heat exchanged with the waste heat of the internal air discharged to the outside through the ventilation unit 123 when the air introduced into the room 1 Not only is the temperature controlled to be introduced into the room, but also to operate the ventilation unit 123 and exhaust the bet discarded to the outside to the heat pump 110 side to use the waste heat of the bet that the heat pump 110 is discarded as a heat source. Since it is possible to greatly improve the efficiency of the heat pump 110, it is possible to significantly reduce the electrical energy to perform indoor ventilation and cooling and heating at a lower cost.

In addition, the radiation and convection cooling and heating system 100 using the heat pump according to an embodiment of the present invention is produced by the heat pump 110 during the summer cooling and the fan coil unit (142) through the second hot and cold water supply line 142 ( The dew point where the temperature of the cold water in the second cold / hot water return line 143 that is supplied to 141 and heat exchanged with the indoor air and discharged to the second cold / hot water return line 143 is not generated by the temperature sensor 145a. When it is detected that the temperature is exceeded, the cold water discharged to the second cold and hot water return line 143 passes through the floor of the building through the second cold and hot water return line 143 and performs radiant floor cooling and then flows into the heat pump 110. To be possible.

On the other hand, during the summer cooling is produced by the heat pump 110 is supplied to the fan coil unit 141 through the second cold and hot water supply line 142 and heat exchanged with the indoor air and discharged to the second cold and hot water return line 143 If the temperature of the cold water in the second cold / hot water return line 143 is below the dew point temperature at which dew condensation may occur by the temperature sensor 145a, the cold water discharged to the second cold / hot water return line 143 may be a building. The direction switching valve 145b is switched by the controller 145c so that the heat pump 110 may be introduced into the heat pump 110 through the bypass line 144 without passing through the bottom.

Therefore, the radiant and convective heating and cooling system 100 using the heat pump according to an embodiment of the present invention is convective cooling of indoor air without fear of condensation caused by the temperature difference between the indoor air and the indoor floor even during summer cooling. It is possible to improve the comfort of the occupants by being able to simultaneously radiate and cool the room floor.

In the detailed description of the present invention described above with reference to the preferred embodiments of the present invention, those skilled in the art or those skilled in the art having ordinary skill in the art will be described in the claims to be described later It will be understood that various modifications and variations can be made in the present invention without departing from the scope of the present invention.

110: heat pump 120: ventilation module
(130): air temperature control module 140: convection and radiant heating and cooling module

Claims (6)

A heat pump heat exchanged with a heat source to produce hot water by raising the temperature of the water or producing cold water by lowering the temperature of the water;
Heat-exchange the indoor and outdoor air and the outdoor air supplied from the outdoor to the indoor area by using the waste heat of the internal air discharged to the outside to increase or decrease the temperature of the external air supplied to the room and supply it to the room. Ventilation module for exhausting the exchanged bet outdoor;
It is connected to the heat pump and the ventilation module to supply hot or cold water produced by the heat pump to the ventilation module side by heat exchange with the outside air supplied to the room primarily the temperature is raised or lowered by the ventilation module An outside air temperature control module to raise or lower the temperature of the outside air secondarily; And
The heat pump is connected to the heat pump and heat exchanges the indoor air with hot or cold water produced by the heat pump to raise or lower the temperature of the indoor air and supply it back to the room. The heat pump exchanges heat with the indoor air. When the temperature of the supplied water is below the set temperature, the water heat-exchanged with the indoor air is introduced into the heat pump without being supplied to the floor, and the temperature of the water supplied by the heat pump heat-exchanged with the indoor air is set. Convection and radiant heating and heating module for supplying the water heat exchanged with the indoor air to the floor only after exceeding to perform the floor cooling and flow into the heat pump,
The convection and radiation heating and cooling module,
A fan coil unit disposed in a room to receive hot or cold water produced by the heat pump and to exchange heat with indoor air to raise or lower the temperature of the indoor air to supply the indoor air;
The heat pump and the fan coil unit may be connected to each other to supply hot or cold water produced by the heat pump to the fan coil unit to be heat exchanged with indoor air that is sucked by the fan coil unit and discharged back into the room. A second cold and hot water supply line to be provided;
A second cold / hot water return line for allowing hot / cold water, which is heat-exchanged with indoor air, through the fan coil unit to pass through the floor and then return to the heat pump to perform floor cooling and heating;
A bypass line connected to the second cold / hot water return line so that water in the second cold / hot water return line can be returned to the heat pump without passing through the bottom; And
When the temperature of the water in the second hot and cold water return line is sensed so that the temperature of the water in the second cold and hot water return line is lower than the set temperature, the water in the second hot and cold water return line is not supplied to the floor and is supplied to the heat pump through the bypass line. Condensation is prevented from occurring at the bottom of the water, and when the temperature of the water in the second cold / hot water return line exceeds a set temperature, the water in the second cold / hot water return line is supplied to the floor through the second cold / hot water return line. And a condensation prevention unit for returning the heat pump after performing floor heating and cooling.
The condensation prevention unit,
A temperature sensor installed on the second cold / hot water return line to detect a temperature of hot water or cold water returned to the heat pump through the second cold / hot water return line;
A direction switching valve installed on the second cold / hot water line so as to be connected to the bypass line; And
When the temperature of the water in the second hot and cold water return line is less than the set temperature compared to the temperature of the water set by receiving the temperature of the water in the second hot and cold water return line detected by the temperature sensor, the water in the second hot and cold water return line By switching the direction switching valve to return to the heat pump through the bypass line without being supplied to the floor to prevent condensation from occurring on the floor, the temperature of the water in the second cold and hot water return line exceeds the set temperature When the water in the second cold and hot water return line is supplied to the floor through the second cold and hot water return line to perform the bottom cooling and heating after the radiation and convection using a heat pump including a control unit for switching the direction switching valve to be introduced into the heat pump Air conditioning system. According to claim 1,
The ventilation module,
A bet discharge line provided with a plurality of bet discharge fans to discharge bets from indoors to outdoors;
An external air supply line provided with a plurality of external air supply fans to supply external air from the outdoor to the indoor; And
The waste heat of the bet discharged to the outside by exchanging heat between the bet discharged from the indoor to the outdoor through the bet discharge line and the outdoor air supplied from the outdoor to the indoor through the outside air supply line Radiation and convection heating and heating system using a heat pump comprising a ventilation unit for raising or lowering the temperature of the outside air supplied to the room by using. The method of claim 2,
The ventilation module,
The waste heat source supply line which further improves the performance of the heat pump by exhausting the bet heat exchanged with the outside through the ventilation unit to the heat pump so that the heat pump is used as the heat source for the heat pump. Radiation and convection heating and heating system using a heat pump containing. According to claim 1,
The outside temperature control module,
It is installed on the outside air supply line of the ventilation module and heat exchanged with hot water or cold water produced by the heat pump primarily for heat exchanged with the bet discharged to the outside to increase or decrease the temperature of the outside air secondarily. Coil box for making;
Connect the coil box and the heat pump to exchange heat with the outside air flowing into the coil box and the hot water or cold water produced by the heat pump while passing through the coil box to supply the hot or cold water produced by the heat pump to the coil. A first cold and hot water supply line to supply a box; And
Radiation and convection heating and heating system using a heat pump comprising a first hot and cold water return line for returning the hot water or cold water heat exchanged to the outside through the coil box to the heat pump. delete delete

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