KR101605909B1 - Method for controlling heating apparatus associated with heat pump - Google Patents

Abstract

The present invention relates to a heat pump interlocking heating device that performs heating based on a floor temperature. Therefore, there is an advantage that a more comfortable environment can be provided to the user by keeping the floor of the room at the optimum temperature state.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

The present invention relates to a control method of a heating apparatus for heating a room in cooperation with a heat pump.

Generally, a water heater means a device that heats water with a heating source to provide hot water to a user. A floor heating system is a device that performs floor heating by heating water to a heating source. At this time, the apparatus for heating the water by the heat pump to provide the user with hot water and performing the floor heating can be referred to as a heat pump interlocking heating apparatus.

The water heater includes a water supply channel for supplying water, a water storage unit for storing water supplied through the water supply channel, a heating source for heating the supplied water, And an outflow channel for providing the service.

The heat pump includes a compressor for compressing the refrigerant, a condenser for condensing the refrigerant discharged from the compressor, an expander for expanding the refrigerant passing through the condenser, an evaporator for evaporating the refrigerant expanded in the expander, And a refrigerant pipe connecting the compressor, the condenser, the inflator and the evaporator to form a refrigerant cycle.

During the flow of the refrigerant in the heat pump, the refrigerant absorbs heat in the evaporator and releases heat from the condenser. The heat pump interlocking heating device can perform hot water supply in such a manner that the refrigerant transfers heat to the water of the hot water supply device.

The present invention is intended to provide a control method of a heat pump interlocking heating device capable of improving the heating performance.

In addition, the present invention provides a control method of a heat pump interlocking heating device capable of improving operation efficiency and performance.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise forms disclosed. Other objects, which will be apparent to those skilled in the art, It will be possible.

In the control method of the heat pump interlocking heating apparatus according to the present invention as described above, the operation of the heat pump interlocking heating apparatus is started and the indoor floor temperature is sensed; Comparing the detected indoor floor temperature with a target temperature; And varying an operation rate of the compressor of the heat pump according to a result of comparison between the indoor floor temperature and the target temperature.

According to another aspect of the present invention, there is provided a control method of a heat pump interlocking heating apparatus, comprising: starting operation of a heat pump interlocking heating apparatus and detecting a temperature of the indoor space; Performing heating of the indoor space when the sensed temperature of the indoor space is lower than the target indoor temperature; Sensing the indoor floor temperature when the temperature of the indoor space reaches the target indoor temperature during heating of the indoor space; And determining whether to perform the floor heating according to a result of comparison between the indoor floor temperature and the target floor temperature.
According to another aspect of the present invention, there is provided a control method for a heat pump interlocking heating device, comprising: a first operation of the heat pump interlocking heating device is started; And performing indoor floor heating when the temperature of the indoor space reaches a target indoor temperature.

According to another aspect of the present invention, there is provided a control method for a heat pump interlocking heating apparatus, comprising: determining a heating operation time between a floor heating operation start time and a stop time; Comparing the heating operation time and the target time; And varying a compressor operation rate of the heat pump according to a result of comparison between the heating operation time and the target time.

As described above, according to the heat pump interlocking heating apparatus and control method thereof according to the present invention, since the heating is performed based on the floor temperature of the room, the floor of the room is maintained at the optimum temperature state, There is an advantage that can be provided.

In the early stage of the operation, the space heating is performed in preference to the floor heating. Generally, the time required for the indoor temperature to reach the target temperature during the space heating is faster than the time when the floor temperature reaches the target temperature during the floor heating, so that the heating performance experienced by the user can be further improved .

In addition, since the temperature of the heating water is controlled based on the heating operation time, the temperature of the heating water is controlled so as not to be late enough for the user to feel discomfort due to delay in heating, There is an advantage in that the heating operation time can be optimized within the range. That is, there is an advantage that the operation efficiency and performance can be optimized.

1 is a schematic view of a heat pump interlocking heating device according to the present invention;
2 is a configuration diagram of a heat pump interlocking heating device according to the present invention;
3 is a control block diagram of a heat pump interlocking heating apparatus according to the present invention;
4 is a flow chart showing a first embodiment of a control method of a heat pump interlocking heating apparatus according to the present invention.
5 is a flowchart showing a second embodiment of a control method of a heat pump interlocking heating apparatus according to the present invention.
6 is a view showing a refrigerant flow in the case where the heat pump interlocking heating device according to the present invention performs space heating.
FIG. 7 is a view showing a refrigerant flow when a heat pump interlocking heating device according to the present invention performs floor heating. FIG.
8 is a flowchart showing a third embodiment of the control method of the heat pump interlocking heating apparatus according to the present invention.

Hereinafter, a heat pump interlocking heating apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a schematic view of a heat pump interlocking heating device according to the present invention, and Fig. 2 is a configuration diagram of a heat pump interlocking heating device according to the present invention.

1 and 2, the heat pump interlocking heating device includes a main refrigerant circuit 2, a hot water heat exchanger 4, a refrigerant regulating portion 6, a heat exchanger bypass flow path 8, And a supplementary refrigerant regulating portion (10).

The main refrigerant circuit 2 includes a compressor 12, an outdoor heat exchanger 14, expansion devices 16 and 17, and an indoor heat exchanger 18. The main refrigerant circuit 2 includes a cooling / We can perform cooperation. That is, the air conditioning operation of the main refrigerant circuit (2) can be performed by a space heating operation for heating the room air or a space cooling operation for cooling the room air.

An accumulator 24 is provided in the suction passage 22 of the compressor 12 to prevent liquid refrigerant from being introduced into the compressor 12 and the compressor 12 is connected to the discharge passage 26 of the compressor 12. [ And an oil separator 28 for separating the refrigerant discharged from the oil and the oil in the oil and recovering the separated oil to the compressor 12 are installed.

The outdoor heat exchanger 14 may be configured as an air refrigerant heat exchanger for condensing or evaporating the refrigerant and performing heat exchange between the outdoor air and the refrigerant. The outdoor heat exchanger 14 may include a water-refrigerant heat exchanger for performing heat exchange between the cooling water and the refrigerant It is also possible. When the outdoor heat exchanger 14 is configured as an air refrigerant heat exchanger, the outdoor fan 30 is installed to blow outdoor air to the outdoor heat exchanger 14.

The outdoor heat exchanger 14 is connected to the indoor heat exchanger 18 and the heat exchanger connection pipe 32. The expansion devices 16 and 17 are installed in the heat exchanger connection pipe 32. [ The expansion mechanisms 16 and 17 include an outdoor expansion mechanism 16 provided in the vicinity of the outdoor heat exchanger 14 and the indoor heat exchanger 18 in the vicinity of the outdoor heat exchanger 14 and the outdoor heat exchanger 14, And an indoor expansion mechanism (17) installed near the indoor heat exchanger (18) of the unit (18).

The heat exchanger connecting pipe 32 includes an outdoor heat exchanger-outdoor expansion mechanism connecting pipe 34 to which the outdoor heat exchanger 14 and the outdoor expansion mechanism 16 are connected, an outdoor expansion mechanism 16, An expansion mechanism connecting pipe 36 to which the mechanism 17 is connected and an indoor expansion mechanism-indoor heat exchanger connecting pipe 38 to which the indoor expansion mechanism 17 and the indoor heat exchanger 18 are connected.

The indoor heat exchanger 18 is connected to the indoor heat exchanger 18 at one side of the indoor heat exchanger 18 to perform indoor cooling or heating while exchanging heat between the room air and the refrigerant. To circulate indoor air.

The main refrigerant circuit 2 is configured such that the refrigerant compressed in the compressor 12 sequentially passes through the outdoor heat exchanger 14, the expansion mechanism 16, 17, and the indoor heat exchanger 18, And a cooling air conditioner connected to the compressor 12 so as to be recovered to cool the room air while the indoor heat exchanger 18 functions as an evaporator. The main refrigerant circuit 2 is configured such that the refrigerant compressed in the compressor 12 sequentially passes through the indoor heat exchanger 18, the expansion mechanisms 16 and 17, and the outdoor heat exchanger 14 And a heating air conditioner connected to the compressor 12 so as to be recovered to heat the room air while the indoor heat exchanger 14 functions as a condenser. In the main refrigerant circuit 2, the refrigerant compressed by the compressor 12 is supplied to the outdoor heat exchanger 14, the expansion mechanisms 16, 17, and the indoor heat exchanger 18 in sequence The refrigerant passes through the indoor heat exchanger 18, the expansion mechanisms 16 and 17 and the outdoor heat exchanger 14 at the time of cooling operation and then passes through the compressor 12, And the air conditioner can be combined with the air conditioner.

Hereinafter, the main refrigerant circuit 2 will be described as being composed of a cooling / heating air conditioner capable of switching between cooling and heating operations.

The main refrigerant circuit 2 causes the refrigerant to flow in the order of the compressor 12, the outdoor heat exchanger 14, the expansion mechanisms 16 and 17 and the indoor heat exchanger 18, And further includes a cooling / heating switching valve (40) for switching the flow direction of the refrigerant to flow in the order of the indoor heat exchanger (18), the expansion mechanisms (16, 17) and the outdoor heat exchanger (14). The cooling / heating switching valve 40 is connected to the compressor 12, the compressor suction passage 22 and the compressor discharge passage 26 and is connected to the outdoor heat exchanger 14 and the outdoor heat exchanger connection pipe 42 , And is connected to the indoor heat exchanger (18) and the indoor heat exchanger connecting pipe (44).

The hot water heat exchanger 4 is connected to the main refrigerant circuit 2 through a hot water supply line so that the refrigerant discharged from the compressor 12 is used for hot water supply and then condensed, And is connected to the flow path 50. The hot water supply flow path 50 is connected to the hot water supply flow path 52 through which the refrigerant of the main refrigerant circuit 2 and particularly the refrigerant compressed by the compressor 12 flows into the hot water heat exchanger 4, And the hot water outflow passage 54 in which the refrigerant discharged from the refrigerant circuit 4 flows into the main refrigerant circuit 2, particularly, the cooling / heating switching valve 40. The hot water supply flow path 52 and the hot water supply flow path 54 are connected to the main refrigerant circuit 2 between the compressor 12 and the cooling / heating switching valve 40, respectively.

One end of the hot water inflow passage 52 is connected to the compressor discharge passage 26 and the other end is connected to the hot water heat exchanger 4. [ One end of the hot water supply flow path 54 is connected to the hot water heat exchanger 4 and the other end is connected to the compressor discharge flow path 26.

In this case, when the refrigerant regulating unit 6 causes the refrigerant to flow to the hot water heat exchanger 4, the hot water heat exchanger 4 exchanges the refrigerant heated in the compressor 12 with water used for hot water supply It is a type of desuperheater that causes condensation to take place.

The hot water heat exchanger (4) has a refrigerant flow path through which superheated refrigerant passes and a water flow path through which water used in the hot water flows. The hot water heat exchanger (4) can also be composed of a double-tube heat exchanger having a refrigerant passage and a water passage formed inside and outside a heat transfer member therebetween. The refrigerant passage and the water passage are alternately arranged in a plate- .

The hot water heat exchanger 4 is connected to the hot water tank 56 through the hot water pipe 58 and the hot water pipe 58 is provided with the hot water pump 60. The water supply tank 56 is connected to a water supply unit 62 in which water is supplied to the hot water tank 56 from outside and an outlet unit 64 in which the water in the hot water tank 56 is discharged. The hot water tank 56 may be configured such that the water introduced into the hot water tank 56 after being heated in the hot water heat exchanger 4 is directly led to the water outlet portion 64.

A hot water supply coil connected to the hot water supply pipe 58 is provided in the hot water tank 56 so that the water heated by the hot water heat exchanger 4 passes through the hot water supply coil and is heated And the water received by the water supply unit 62 may be heated by the hot water supply coil to be discharged to the water outlet unit 64.

In the heat pump interlocking heating device, the refrigerant heated by the hot water heat exchanger (4) can be directly flowed to the main refrigerant circuit (2). After the indoor heat is used for floor heating or air conditioning, (2).

The heat pump interlocking heating device may further include a water-refrigerant heat exchanger (72) connected to the hot water flow path (50) and the water-refrigerant heat exchanger connecting flow path (70). The refrigerant that has passed through the hot water heat exchanger 4 may flow to the water-refrigerant heat exchanger 72 through the hot water flow path 50 and the water-refrigerant heat exchanger connecting flow path 70 after heating the water.

The water-refrigerant heat exchanger connecting passage 70 includes a heating inflow passage 74 through which the refrigerant in the hot water supply outflow passage flows into the water-refrigerant heat exchanger 72, And a heating / outflow channel (76) through which the refrigerant passed out flows out to the hot water supply outflow channel (54). A check valve 78 is provided in the heating outflow passage 76 to prevent the refrigerant in the hot water outflow passage 54 from flowing back to the water-refrigerant heat exchanger 72 through the heating outflow passage 76.

The water-refrigerant heat exchanger (72) is a condensing heat exchanger in which the refrigerant condensed first in the hot water heat exchanger (4) is further condensed while being heat-exchanged with water. The water-refrigerant heat exchanger (72) has a refrigerant passage through which the refrigerant passed through the hot water heat exchanger (4) passes, and a water passage through which water used for floor heating or indoor air-conditioning heating flows. The water-refrigerant heat exchanger (72) can also be composed of a double-tube heat exchanger having a refrigerant passage and a water passage formed inside and outside with a heat transfer member interposed therebetween. The refrigerant passage and the water passage are formed by plate- It is also possible to have a group.

When the water refrigerant heat exchanger 72 is connected to the floor heating pipe 80 provided on the floor of the room by the heating water pipe 82 and the floor heating pump 84 is installed on the heating water pipe 82 The heat of the refrigerant passing through the hot water heat exchanger 4 can be further utilized in the floor heating of the room. In the present embodiment, the floor heating pipe, the heating water pipe, the floor heating pump, and the water-refrigerant heat exchanger will collectively be referred to as a floor heating device.

In the case where the water-refrigerant heat exchanger 72 is installed inside the case and an indoor fan for circulating indoor air to the water-refrigerant heat exchanger 72 is installed inside the case, the water-refrigerant heat exchanger 72 and the case And the indoor fan is constituted by a fan coil unit for circulating and heating the indoor air, and the heat of the refrigerant passing through the hot water heat exchanger (4) can be used in addition to the indoor air heating.

The floor heating pipe 80 is connected to the water refrigerant heat exchanger 72 through the heating water pipe 82 and the floor heating pump 84 is installed in the heating water pipe 82 Explain.

The heat pump interlocking heating device includes a water-refrigerant heat exchanger refrigerant regulating unit 86 for regulating the flow of refrigerant through the water-refrigerant heat exchanger 72 or bypassing the water-refrigerant heat exchanger 72 . The water-refrigerant heat exchanger (72) can be directly connected to the hot water outlet flow path (54) to allow the refrigerant passing through the hot water heat exchanger (4) to be always used for floor heating, It is preferable to be installed so as to be practicable. The water-refrigerant heat exchanger refrigerant regulator 86 is a floor heating valve that allows refrigerant to pass through the water-refrigerant heat exchanger 72 at a time when a user selects floor heating.

When the operation of the heat pump interlocking heating unit includes the floor heating operation, the water-refrigerant heat exchanger refrigerant adjusting unit 86 adjusts the flow direction of the refrigerant so that the refrigerant flows to the water-refrigerant heat exchanger 72, When the operation of the pump interlocking heating device does not include the floor heating operation, the refrigerant bypasses the water-refrigerant heat exchanger (72) to control the flow direction of the refrigerant. That is, the water-refrigerant heat exchanger refrigerant regulator 86 controls the water-refrigerant heat exchanger refrigerant regulator 86 during the simultaneous operation of the floor heating operation, the floor heating operation and the hot water supply operation, and the simultaneous operation of the floor heating operation, (72).

At this time, the water-refrigerant heat exchanger coolant control unit 86 may be constituted by one three-way valve installed in the hot water supply channel 50, particularly the hot water outflow channel 54, so as to select the refrigerant outflow direction. In the case of a three-way valve, the inlet portion and the first outlet portion are connected to the hot water outlet flow path 54, and the second outlet portion is connected to the heating inlet flow path 74.

The water coolant heat exchanger coolant control unit 86 includes a first valve installed in the heating inflow channel 74 and opened when the floor heating operation is performed and sealed when the floor heating operation is not performed, And is opened when the floor heating operation is not performed.

The refrigerant regulating unit 6 regulates the flow direction of the refrigerant discharged from the compressor 12 by passing the refrigerant discharged from the compressor 12 through the hot water heat exchanger 4 or bypassing the refrigerant.

When the operation of the heat pump interlocking heating device includes at least one of the hot water supply operation and the floor heating operation, the refrigerant regulating part 6 controls the refrigerant compressed by the compressor 12 to flow into the hot water heat exchanger 4 When the operation of the heat pump interlocking heating device does not include both the hot water supply operation and the floor heating operation, the refrigerant compressed by the compressor (12) bypasses the hot water heat exchanger (4) .

More specifically, the coolant control unit 6 controls the operation of the coolant control unit 6 during the hot water supply operation, the simultaneous operation of the hot water supply operation and the air conditioning operation, the simultaneous operation of the hot water supply operation and the floor heating operation, During the floor heating operation, the refrigerant compressed in the compressor (12) is regulated to flow to the hot water heat exchanger (4). The refrigerant regulating unit 6 regulates the refrigerant bypassing the hot water heat exchanger 4 during the air conditioning operation, the space cooling operation, and the space heating operation.

The refrigerant regulating part 6 may be constituted by one three-way valve installed in the main refrigerant circuit 2 and capable of selecting a refrigerant outflow direction. In the case of a three-way valve, the inlet and the first outlet are connected to the compressor outlet flow passage 26 and the second outlet is connected to the hot water inlet flow passage 52.

However, the refrigerant regulating unit 6 is installed between the refrigerant regulating unit 6 and the cooling / heating switching valve 40 in the compressor outlet flow path 26, and performs the operation including at least one of the hot water supply operation and the floor heating operation A first valve that is closed when the air conditioning operation is performed and is opened when the air conditioning operation is performed, and a second valve that is opened when the operation includes at least one of the hot water supply operation and the floor heating operation, It is also possible to include two valves.

The heat exchanger bypass flow path 8 is connected to the hot water heat exchanger 4 so that the refrigerant passing through the hot water heat exchanger 4 bypasses any one of the outdoor heat exchanger 14 and the indoor heat exchanger 18. [ 4) is guided between the outdoor heat exchanger (14) and the indoor heat exchanger (18). One end of the heat exchanger bypass flow path 8 is connected to the hot water supply flow path 50 and the other end is connected between the indoor expansion mechanism 17 and the outdoor expansion mechanism 16.

One end of the heat exchanger bypass passage 8 is connected to the hot water outflow passage 54 in the hot water supply passage 50 and the other end is connected to the expansion mechanism connection pipe 36, To the indoor expansion mechanism (17) and the outdoor expansion mechanism (16). The refrigerant guided to the heat exchanger bypass flow path 8 is expanded in the indoor expansion mechanism 17 and then evaporated in the indoor heat exchanger 18 and recovered to the compressor 12, Is expanded in the outdoor heat exchanger (16), evaporated in the outdoor heat exchanger (14), and recovered into the compressor (12). That is, when the refrigerant is guided through the heat exchanger bypass flow path 8 between the indoor expansion mechanism 17 and the outdoor expansion mechanism 16, the condensation process is not generated in the main refrigerant circuit 2, And the heat transfer amount of the water-cooling heat exchanger (4) and the water-refrigerant heat exchanger (72) is increased, and the hot water supply efficiency and the floor heating efficiency are increased.

The auxiliary refrigerant regulator 10 regulates the refrigerant passing through the hot water heat exchanger 4 so that the refrigerant passing through the hot water heat exchanger 4 can pass through or bypass the heat exchanger bypass flow path 8. [ The flow direction of the fluid is controlled.

When the operation of the heat pump interlocking heating unit includes two operations of hot water supply operation and air conditioning operation, the auxiliary refrigerant regulator 10 controls the refrigerant flow passing through the heat exchanger bypass flow passage 8, . More specifically, the auxiliary refrigerant regulating unit 10 regulates the operation of the auxiliary refrigerant regulating unit 10 during simultaneous operation of hot water supply operation and air conditioning operation, simultaneous operation of hot water supply operation, floor heating operation and air conditioning operation, At the time of simultaneous operation, the refrigerant passing through the hot water heat exchanger (4) is regulated to bypass the heat exchanger bypass flow path (8) during the floor heating operation.

When the defrosting condition occurs during the hot water supply operation, the refrigerant that has passed through the hot water heat exchanger (4) is controlled to bypass the heat exchanger bypass flow path (8) The circuit 2 is switched from the heating operation to the cooling operation for defrosting the outdoor heat exchanger 14 and the outdoor heat exchanger 14 is defrosted.

The auxiliary refrigerant regulating unit 10 may include one three-way valve installed in the hot water outlet flow path 54 and capable of selecting a refrigerant outflow direction. In the case of a three-way valve, the auxiliary refrigerant regulating part 10 is connected to the hot water outlet flow path 54 and the second outlet part to the heat exchanger bypass flow path 8.

The auxiliary refrigerant regulating unit 10 is installed between the auxiliary refrigerant regulating unit 10 and the cooling / heating switching valve 40 in the hot water outlet flow path 54 and is operated including hot water supply operation and air conditioning operation, A first valve that is opened when the operation including the floor heating operation and the air conditioning operation is opened and includes at least one of the floor heating operation and the hot water supply operation and is closed when the operation is not included in the air conditioning operation, ), Which is closed when the operation including the hot water supply operation and the air conditioning operation, the operation including the floor heating operation and the air conditioning operation, and the operation day including at least one of the floor heating operation and the hot water supply operation, It is also possible to include a second valve that opens when the valve is opened.

The heat pump interlocking heating device includes a heat exchanger bypass valve 88 provided in the heat exchanger bypass passage 8 for interrupting the flow of the refrigerant and a heat exchanger bypass passage 88 for connecting the heat exchanger bypass passage 8 and the indoor expansion mechanism 17 for controlling the flow of the refrigerant.

The heat exchanger bypass valve 88 is opened when the hot water supply operation and the floor heating operation are concurrently operated, the floor heating operation is performed or the hot water supply operation is performed, and the air conditioner operation is performed simultaneously with the air conditioner operation and the hot water supply operation, In case of simultaneous operation of heating operation, it is closed.

The liquid refrigerant valve (90) is opened when it is in the air-conditioning operation, the simultaneous operation of the air-conditioning operation and the hot water supply operation, or the simultaneous operation of the air-conditioning operation, the hot water supply operation and the floor heating operation, the simultaneous operation of the hot water supply operation and the floor heating operation, Or in case of hot water operation.

In the heat pump interlocking heating device, the main refrigerant circuit 2 can constitute a separate type air conditioner having the outdoor unit O and the indoor unit I, and the hot water supply unit H is connected to the outdoor unit 0 Can be connected.

The compressor (12), the cooling / heating switching valve (30), the outdoor heat exchanger (14), the outdoor expansion mechanism (16) and the outdoor fan (30) are installed in the outdoor unit (O). The indoor expansion mechanism (17), the indoor heat exchanger (18), and the indoor fan (39) are installed in the indoor unit (I). The hot water heat exchanger 4, the hot water supply pump 60, the water-refrigerant heat exchanger 72, the floor heating pump 84, and the water-refrigerant heat exchanger refrigerant conditioning unit 86 are installed in the hot water supply unit H . The refrigerant adjusting unit 6, the heat exchanger bypass line 8, the auxiliary refrigerant adjusting unit 10, the heat exchanger bypass valve 88 and the liquid refrigerant valve 90 are installed in the outdoor unit O .

Hereinafter, the refrigerant flow of the heat pump interlocking heating apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 2, the heat pump interlocking heating device operates as follows when the floor heating operation, the hot water supply operation and the space heating operation are simultaneously operated. The compressor 12 is driven and the refrigerant is regulated to flow toward the hot water heat exchanger 4 and the water refrigerant heat exchanger refrigerant regulator 86 regulates the flow of the hot water outflow channel 54 are controlled to pass through the water-refrigerant heat exchanger (72). The refrigerant in the hot water supply outflow passage 54 is regulated to bypass the heat exchanger bypass flow passage 8 and the outdoor fan 30 and the indoor fan 39 . In addition, the cooling / heating switching valve 40 is driven in a heating mode, the heat exchanger bypass valve 88 is closed, the liquid refrigerant valve 90 is opened, The heating pump 84 is driven.

The water in the hot water tank 56 flows to the hot water heat exchanger 4 through the hot water pipe 58 and flows through the hot water heat exchanger 4 in accordance with the driving of the hot water pump 60 And circulated to the hot water tank 56.

As the floor heating pump 84 is driven, the water in the floor heating pipe 80 flows to the water-refrigerant heat exchanger 72 through the heating water pipe 82 and flows into the water-refrigerant heat exchanger 72 And then circulated to the floor heating pipe 80.

The refrigerant compressed by the compressor 12 flows into the hot water heat exchanger 4 after passing through the refrigerant regulating unit 6 and the hot water inflow passage 52, The refrigerant overheated in the compressor (12) through the heat exchanger (4) is heat-exchanged with water and condensed. The refrigerant condensed in the hot water heat exchanger 4 flows into the water-refrigerant heat exchanger refrigerant regulating portion 86 and flows into the water-refrigerant heat exchanger 72 through the heating inlet flow path 74, Exchanges heat with water while passing through the refrigerant heat exchanger (72) and is condensed again. The refrigerant condensed in the water refrigerant heat exchanger 72 flows out to the hot water outlet flow path 54 through the heating inflow path 76 and then flows through the auxiliary refrigerant adjusting part 10 to the heat exchanger bypass And flows to the cooling / heating switching valve (40) while bypassing the flow path (8). The refrigerant flowing into the cooling / heating switching valve 40 flows into the indoor heat exchanger 18 and is further condensed. The refrigerant is expanded in at least one of the indoor expansion mechanism 17 and the outdoor expansion mechanism 16 Exchanged with the outdoor air in the outdoor heat exchanger (14), and evaporated. The refrigerant evaporated in the outdoor heat exchanger (14) passes through the cooling / heating switching valve (40) and is recovered to the compressor (12).

That is, the refrigerant discharged from the compressor 12 flows through the hot water heat exchanger 4, the water refrigerant heat exchanger 72, the cooling / heating switching valve 40, the indoor heat exchanger 18, the indoor expansion mechanism 17, The outdoor expansion mechanism 16, the outdoor heat exchanger 14, and the cooling / heating switching valve 40, and then is recovered to the compressor 12. [

In the heat pump interlocking heating device, the refrigerant is condensed three times in total during the process of passing through the hot water heat exchanger (4), the water refrigerant heat exchanger (72) and the indoor heat exchanger (18), and the outdoor heat exchanger The hot water heat exchanger 4 heats the water in the hot water tank 56 and the water refrigerant heat exchanger 72 heats the water in the floor heating pipe 80.

During the simultaneous operation of the floor heating operation, the hot water supply operation and the space heating operation in the heat pump interlocking heating device, the refrigerant heats the water in the hot water tank 56 and the water in the floor heating pipe 80 and the indoor space together And the heat pump interlocking heating device can efficiently perform hot water supply, floor heating and space heating.

On the other hand, when the refrigerant discharged from the compressor (12) passes through the hot water heat exchanger (4) without heat exchange, or when the water refrigerant heat exchanger (72) At least one of the hot water supply, the floor heating, and the space heating may be selectively performed by bypassing the indoor heat exchanger 18 or by bypassing the indoor heat exchanger 18 according to the switching of the auxiliary refrigerant regulator 10.

Hereinafter, a control method of the heat pump interlocking heating apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a control configuration diagram of a heat pump interlocking heating apparatus according to the present invention, and FIG. 4 is a flowchart showing a first embodiment of a control method of a heat pump interlocking heating apparatus according to the present invention.

3, the heater pump interlocking heating device includes a floor temperature sensing unit 101 for sensing the temperature of the floor of the room, an indoor temperature sensing unit 102 for sensing the temperature of the indoor space, And a control unit 105 for controlling the operation of the compressor 106 according to the floor temperature and the room temperature sensed by the sensing unit 101 and the room temperature sensing unit 102. The bottom temperature sensing unit 101, the room temperature sensing unit 102, and the control unit 105 are electrically connected to each other so as to exchange control signals with each other.

Herein, the bottom temperature sensing unit 101 is disposed so as to be in contact with the bottom surface of the room and directly senses the bottom temperature of the room, and a method of sensing the floor temperature of the room through the infrared temperature sensor Or the like, and the like. At this time, when the infrared temperature sensor is used, the infrared temperature sensor is installed in a remote controller installed at one side of the room, and the infrared sensor can detect the floor temperature of the room through the infrared rays radiated from the floor.

Referring to FIG. 4, when the heating operation is started (S10), the temperature of the floor of the room is sensed (S11). At this time, the temperature of the indoor floor can be sensed by the bottom temperature sensing unit 101.

Next, when the bottom temperature exceeds the target temperature (S12), the operation rate of the compressor 106 is controlled to be reduced (S13). As the operation rate of the compressor 106 is reduced, the amount of heating to the floor of the room can be reduced. Therefore, the rise of the bottom temperature can be prevented.

However, when the floor temperature is equal to or lower than the target temperature (S12), the operation rate of the compressor 106 is controlled to be increased (S14). As the operation rate of the compressor 106 is increased, the amount of heating to the floor of the room can be increased. Therefore, the bottom temperature can be raised.

That is, according to this process, the floor temperature of the room can be adjusted to converge to the target temperature.

According to the present embodiment, since the operation of the compressor 106 is controlled so that the floor temperature can reach the target temperature on the basis of the sensed floor temperature, The temperature can be adjusted to reach the level desired by the user. Therefore, there is an advantage that the heating performance experienced by the user can be further improved.

Hereinafter, a second embodiment of the heat pump interlocking heating device according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 5 is a flowchart showing a second embodiment of a control method of a heat pump interlocking heating apparatus according to the present invention, FIG. 6 is a view showing a refrigerant flow when the heat pump interlocking heating apparatus according to the present invention performs space heating And FIG. 7 is a view showing a refrigerant flow when the heat pump interlocking heating device according to the present invention performs floor heating.

Referring to FIG. 5, when the heating operation is started at the beginning of operation of the heat pump interlocking heating device, the temperature of the present indoor space is sensed first (S21). At this time, the temperature of the indoor space can be sensed by the room temperature sensing unit 102.

Next, the current room temperature is compared with the target room temperature (S22). If the current room temperature is below the target room temperature, the space heating starts (S23).

After the space heating is started, the temperature of the current indoor space is sensed again (S24). Then, the detected current room temperature is compared with the target room temperature (S25) and the process of comparing the detected room temperature with the target room temperature is repeatedly performed unless the current room temperature exceeds the target room temperature do. At this time, as the space heating is performed, the temperature of the indoor space gradually rises and eventually exceeds the target indoor temperature.

However, when the current indoor temperature exceeds the target indoor temperature (S25), the space heating operation is stopped (S26), and the temperature of the floor of the room is currently sensed (S27).

However, if the current indoor temperature sensed immediately after the start of the heating operation exceeds the target indoor temperature (S22), the temperature of the indoor floor is immediately sensed (S27).

If the sensed current floor temperature is equal to or lower than the target floor temperature (S28), the floor heating is started (S29).

After the floor heating is started, the temperature of the floor of the room is detected again (S30). Then, the detected floor temperature is compared with the target floor temperature (S31), so that the floor temperature of the room floor is sensed and compared with the target floor temperature as long as the current floor temperature does not exceed the target floor temperature do. At this time, as the floor heating is performed, the temperature of the indoor floor gradually increases, and eventually exceeds the target floor temperature.

However, if the current floor temperature exceeds the target floor temperature (S31), the floor heating operation is stopped (S32).

After the completion of the process, the indoor temperature and the indoor floor temperature are sequentially sensed (S21, S27) unless the operation stop signal is input, and the indoor temperature and the indoor floor temperature are sequentially sensed S22, S28), the space heating and the floor heating operation can be selectively performed.

Referring to FIG. 6, the refrigerant flow in the space heating operation of the heat pump interlocking heating device will be described. First, the compressor 12 is driven. In the refrigerant conditioning part 6, Heating switching valve 40 while bypassing the refrigerant heat exchanger 4 and the water refrigerant heat exchanger 72 and the auxiliary refrigerant adjusting unit 10 while the auxiliary refrigerant adjusting unit 10 is controlled to flow to the cooling / The outdoor fan 30 and the indoor fan 39 are rotated so that the refrigerant of the flow path 54 is controlled to flow to the heat exchanger bypass flow path 8. The cooling / The heat exchanger bypass valve 88 is closed and the liquid refrigerant valve 90 is opened and the hot water supply pump 60 and the floor heating pump 84 are not driven.

The refrigerant compressed by the compressor 12 is passed through the refrigerant regulating unit 6 and then bypasses the hot water heat exchanger 4 and the water refrigerant heat exchanger 72 to cool the refrigerant / Heating switching valve 40, and thereafter is heat-exchanged with the outdoor air in the indoor heat exchanger 18 and condensed. The refrigerant condensed in the indoor heat exchanger 18 is expanded in at least one of the outdoor expansion mechanism 16 and the indoor expansion mechanism 17 and evaporated in the outdoor heat exchanger 14. The refrigerant evaporated in the outdoor heat exchanger (14) passes through the cooling / heating switching valve (40) and is recovered to the compressor (12).

That is, the refrigerant discharged from the compressor 12 flows through the refrigerant / heating switching valve 40, the indoor heat exchanger 18, the outdoor expansion mechanism 16, the indoor expansion mechanism 17, the outdoor heat exchanger 14, Cooling / heating switching valve 40, and then is returned to the compressor 12.

In the heat pump type hot water supply apparatus, the indoor heat exchanger (18) condenses the refrigerant, the outdoor heat exchanger (14) evaporates the refrigerant, and the room air is heated while exchanging heat with the indoor heat exchanger (18). That is, the heat pump type hot water supply apparatus is advantageous in that the temperature of the indoor space can be increased more rapidly than in the case where the refrigerant is used to heat the indoor air during the space heating operation and the hot water supply and the floor heating are simultaneously performed.

Next, referring to FIG. 7, the refrigerant flow when the heat pump interlocking heating device operates in a floor heating operation will be described. First, the compressor 12 is driven, The refrigerant in the hot water supply outflow passage 54 is regulated to pass through the water refrigerant heat exchanger 72 and the refrigerant in the auxiliary refrigerant heat exchanger 72 is regulated to flow toward the refrigerant heat exchanger 72, The control unit 10 controls the refrigerant in the hot water outlet flow path 54 to pass through the heat exchanger bypass flow path 8 and the outdoor fan 30 is rotated and the indoor fan 39 is not rotated , The cooling / heating switching valve 40 is driven in a heating mode, the heat exchanger bypass valve 88 is opened, the liquid refrigerant valve 90 is sealed, and the hot water supply pump 60 is not driven And the floor heating pump 84 is driven.

The water of the floor heating pipe 80 flows into the water-refrigerant heat exchanger 72 through the heating water pipe 82 and flows into the water-refrigerant heat exchanger 72, And then circulated to the floor heating pipe 80.

The refrigerant compressed in the compressor 12 flows into the hot water heat exchanger 4 after passing through the refrigerant regulating part 6 and the hot water inflow path 52 according to the driving of the compressor 12, Exchanger (4) without heat exchange, and then flows into the water-refrigerant heat exchanger refrigerant regulator (86). The refrigerant flowing into the water-refrigerant heat exchanger refrigerant regulating section 86 flows into the water-refrigerant heat exchanger 72 through the heating inlet flow path 74 and flows into the water-refrigerant heat exchanger 72 through the water- Heat exchanged and condensed. The refrigerant condensed in the water refrigerant heat exchanger 72 flows out to the hot water outlet flow path 54 through the heating inflow path 76 and then flows through the auxiliary refrigerant adjusting part 10 to the heat exchanger bypass And flows into the flow path 8. The refrigerant that has flowed into the heat exchanger bypass flow path 8 is expanded in the outdoor expansion mechanism 16 after passing through the heat exchanger bypass valve 88 and is then discharged from the outdoor heat exchanger 14 to the outside air Exchanged and evaporated. The refrigerant evaporated in the outdoor heat exchanger (14) passes through the cooling / heating switching valve (40) and is recovered to the compressor (12).

That is, the refrigerant discharged from the compressor 12 passes through the hot water heat exchanger 4, the water refrigerant heat exchanger 72, the heat exchanger bypass flow path 8, the outdoor expansion mechanism 16, the outdoor heat exchanger 14, And the cooling / heating switching valve 40, and then is returned to the compressor 12. [

The heat pump type hot water supply apparatus is characterized in that the water-refrigerant heat exchanger (72) condenses the refrigerant, the outdoor heat exchanger (14) evaporates the refrigerant, and the water refrigerant heat exchanger (72) Of water. That is, the heat pump type hot water supply apparatus is used for heating the water in the floor heating pipe 80 when the floor heating operation is performed, and when the refrigerant passes through the indoor heat exchanger 18 or when the hot water supply pump 60 is driven The water temperature of the floor heating pipe 80 can be increased more quickly than in the case where the temperature of the water is low.

According to the present embodiment, there is an advantage that the user can feel the heating effect more quickly by preferentially performing the space heating, which is relatively effective early in the operation of the heat pump interlocking heating apparatus, compared with the floor heating.

More specifically, when the heating operation is performed at the beginning of the operation, the temperature of the room and the floor generally falls below the target temperature. By heating the indoor space by performing the space heating, the heating effect can be obtained more quickly than when the indoor floor is heated by performing the floor heating. That is, assuming the same heating ability, the temperature of the indoor space can be raised more rapidly than the temperature of the indoor floor when performing the floor heating in the case of performing the space heating. Therefore, as in the present embodiment, the space heating is preferentially performed at the beginning of the operation rather than the floor heating, so that the user can feel the heating effect more quickly.

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

8 is a flow chart showing a third embodiment of the control method of the heat pump interlocking heating apparatus according to the present invention.

Referring to FIG. 8, first, it is checked whether floor heating is performed (S41). If floor heating is started (S42), the heating operation time is initialized (S43). Then, the heating operation time is accumulated (S44). At this time, the heating operation time may be regarded as a time variable indicating the time required for the floor heating to be started and completed. That is, the heating operation time is initialized means that the starting time at which the heating operation time is accumulated is determined. Here, whether the floor heating is performed may be performed in various ways, for example, a method of detecting whether or not a signal for performing floor heating is inputted.

Next, the heating operation time is continuously accumulated until the floor heating is stopped (S47) unless the heating operation time exceeds the limit time (S45) ).

At this time, the limit time means a minimum reference time for determining whether or not the condition corresponding to the target can be reached with the current heating capacity. That is, if the current condition does not reach the target condition even though the time limit has elapsed (S45), it means that the current heating capacity is insufficient to reach the target condition. Accordingly, in such a case, the operation state is changed in a direction in which the temperature of the heating water can be raised. For example, by increasing the operation rate of the compressor 106 (S49), the temperature of the heating water can be increased and the heating capacity can be improved.

If the floor heating is stopped (S47), the accumulated heating operation time is compared with the maximum target time and the minimum target time (S48). If the heating operation time exceeds the maximum target time (S48), the operation state is changed in the direction in which the temperature of the heating water rises. For example, by increasing the operation rate of the compressor 106 (S49), the heating capacity can be improved. If the heating operation time is less than the minimum target time (S48), the operation state is changed in the direction in which the temperature of the heating water falls. For example, since the operation rate of the compressor 106 is reduced (S50), the heating capacity can be reduced. On the other hand, if the heating operation time is between the minimum target time and the maximum target time (S50), the process may proceed to the next step without changing the operating state (S52).

The maximum target time and the minimum target time mean an upper limit value and a lower limit value of the appropriate time required for the bottom temperature to reach the target temperature through the heating operation. That is, the maximum target time means a time period during which the user does not feel inconvenience due to delay in heating in the time taken to reach the target condition in the heating operation. The minimum target time means a period of time during which the energy loss is not excessively increased due to the excessive heating capacity being applied to the time required for reaching the target condition at the time of the heating operation.

The heating capacity is improved when the heating operation time exceeds the maximum target time and the heating capacity is reduced when the heating operation time is less than the minimum target time so that the heating operation time is shorter than the maximum target time and the minimum And may be controlled so as to fall within the target time.

After the operation state is changed so that the temperature of the heating water is increased or decreased, the process can be repeatedly performed (S41) by checking whether the floor is heated, unless an operation stop signal is input (S52).

According to the present embodiment, there is an advantage that the heating capability of the heat pump interlocking heating device can be adjusted to a level suitable for the floor heating. More specifically, if the input heating capacity is too high, the heating target condition is rapidly reached but the energy loss is increased. If the heating capability is too low, the time for reaching the heating target condition becomes long and the user may feel inconvenience . However, in the present embodiment, since the heating operation time is controlled to be within a predetermined range, that is, between the maximum target time and the minimum target time, the amount of energy loss can be reduced, There is an advantage.

Further, since the heating performance, for example, the operating rate of the compressor 106 is adjusted based on the heating operation time, there is an advantage that it is not necessary to consider the bottom material or the outside air temperature. More specifically, even assuming the same heating capacity, the thermal diffusion rate may vary depending on the material of the floor on which the heat pump interlocking heating device is installed, and the floor temperature may vary depending on the outside air temperature. The time it takes can vary. However, in this embodiment, since the heating capacity is controlled based on the time taken to reach the target condition, that is, the heating operation time, the heating operation time can be assured regardless of the bottom material or the outside air temperature.

It will be apparent to those skilled in the art that many other modifications and variations are possible in light of the above teachings and the scope of the present invention should be construed on the basis of the appended claims will be.

2: main refrigerant circuit 4: hot water heat exchanger
6: Refrigerant regulating part 8: Heat exchanger bypass flow path
10: auxiliary refrigerant regulator 12: compressor
14: outdoor heat exchanger 16: outdoor expansion device
17: Indoor expansion device 18: Indoor heat exchanger
40: a cooling / heating switching valve 50:
52: Hot water inflow channel 54: Hot water inflow channel
60: hot water supply pump 72: water-refrigerant heat exchanger
74: Heating inflow channel 76: Heating outflow channel
84: Floor heating pump 86: Water refrigerant heat exchanger refrigerant regulator
88: Heat exchanger bypass valve 90: Liquid refrigerant valve

Claims (10)

delete delete delete delete delete delete A heat pump interlocking heater including a floor heating device for performing indoor floor heating using heat-exchanged water and heat-exchanging the refrigerant and water in the heat pump, the heat pump performing heating or cooling of the indoor space using a refrigerant cycle; A method of controlling a device,
Determining a heating operation time between a floor heating operation start time and a stop time;
Comparing the heating operation time and the target time; And
And varying a compressor operation rate of the heat pump according to a result of comparison between a heating operation time and a target time. 8. The method of claim 7,
And increases the operating rate of the compressor when the heating operation time exceeds the maximum target time. 8. The method of claim 7,
Wherein the operation ratio of the compressor is reduced when the heating operation time is less than the minimum target time. 8. The method of claim 7,
Wherein the operation of the heat pump interlocking heating device is started when the floor heating operation is started and before the heating operation time exceeds the limit time, the operation rate of the compressor is increased.

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