JP5625883B2 - Dehumidifying and heating device and clothes dryer provided with the same - Google Patents

Description

  The present invention relates to a dehumidifying and warming apparatus using a heat pump cycle, and a clothes dryer for drying clothes and the like equipped with the apparatus.

  Conventionally, the clothes dryer provided with this kind of dehumidification warming apparatus has a structure as shown in FIG. 7 (for example, refer patent document 1). FIG. 7 shows a system diagram of the clothes drying apparatus described in Patent Document 1. In FIG. 7, a compressor 51, a condenser 52, a heat exhauster 53, a throttle means 54 and an evaporator 55 are connected by a pipeline 56 through which a refrigerant circulates to constitute a heat pump device 57. The wind circuit 58 for flowing the drying air includes a condenser 52 that heats the drying air, a drying chamber 59 that holds clothes to be dried, and an evaporator 55 that cools and dehumidifies the drying air. It connects so that it may connect with a road.

  The heat exhauster 53 is installed between the condenser 52 and the throttle means 54, and is disposed in a wind circuit 60 different from the wind circuit 58. The heat exhauster 53 removes the outside air blown by the blower 61 and the heat exhaustor 53. The flowing refrigerant exchanges heat and releases a part of the heat of the refrigerant so as to reduce the temperature rise of the refrigerant. The detection means 62 for detecting the state of the heat pump device 57 detects the refrigerant discharge temperature by the thermistor 63 provided in the pipe 56 through which the refrigerant is discharged from the compressor 51, and controls the compressor 51 and the blower 61.

  The arrow A indicates the flow of drying air flowing through the wind circuit 58, the arrow B indicates the flow of cooling outside air flowing through the wind circuit 60, and the arrow C indicates the flow of refrigerant flowing through the pipe 56. Show.

  Next, the operation of the clothes drying apparatus will be described. When the drying operation is started, the blower 64 provided in the compressor 51 and the wind circuit 58 is operated, and the drying air is blown to the wind circuit 58 by the blower 64. The drying air is heated by heat radiation from the condenser 52 and is introduced into the drying chamber 59 as warm air. The drying air that has come into contact with the clothes in the drying cabinet 59 removes moisture from the wet clothes and dries the clothes.

  The drying air is provided with sensible heat as the amount of heat for evaporation, and thus the temperature is lowered. However, the drying air contains water vapor having substantially the same latent heat released from the clothing and becomes highly humid. The enthalpy of the drying air before and after coming into contact with clothing is almost constant. The drying air that has become highly humid is cooled by the evaporator 55, deprived of latent heat, dewed and dehumidified. The drying air which has been dehumidified and whose absolute temperature has been lowered is heated again by the condenser 52.

  On the other hand, in the heat pump cycle, the high-temperature and high-pressure gas refrigerant compressed by the compressor 51 takes heat from the drying air by the condenser 52 and condenses and liquefies. The refrigerant exiting the condenser 52 enters the heat exhauster 53, exchanges heat with the outside air blown by the blower 61, and exhausts a part of the heat of the refrigerant. Next, the high-pressure refrigerant is depressurized by the throttle means 54, becomes low temperature and low pressure, takes heat from the drying air by the evaporator 55, and returns to the compressor 51.

  The amount of heat obtained by adding the amount of heat obtained from the input of the compressor 51 to the amount of heat deprived by the evaporator 55 by the refrigerant is released from the condenser 52, but the amount of heat corresponding to the input of the compressor 51 is discharged by the heat exhaustor 53. Heat is radiated to the outside in advance, and the amount of heat radiated from the condenser 52 is balanced at a constant value.

JP 2004-239549 A

  However, in the conventional configuration, in order to exhaust a part of the heat of the refrigerant, an exhaust heat wind circuit 60 is provided and the exhaust heat radiator 53 is provided, and the refrigerant from the condenser 52 to the exhaust heat radiator 53 is provided. The pipe for the pipe and the pipe for the refrigerant pipe from the heat exhaustor 53 to the throttle means 54 are necessary, and since the heat is discharged from the liquid refrigerant exiting the condenser 52, the external air temperature is high. Since the temperature difference between the air and the refrigerant is small and the heat exhauster 53 is large, there is a problem that the dehumidifying and warming device is enlarged.

  The present invention solves the above-described conventional problems, and an object of the present invention is to provide a compact dehumidifying and warming device that efficiently exhausts part of the heat of the refrigerant.

In order to solve the above-described conventional problems, a dehumidifying and heating apparatus according to the present invention includes a heating unit and an evaporator provided in a condenser, and includes a first blowing unit that sends air to the evaporator and the heating unit. first and wind circuit having the disposed waste heat section provided in the condenser, and a second air circuit having a second blowing means for blowing air to the heat exhaust unit, the first The wind circuit and the second wind circuit are formed adjacent to each other, dehumidified and heated by the first wind circuit, the heat of the condenser is discharged by the second wind circuit, and the condenser The refrigerant inflow side is disposed in the exhaust heat section, and the first wind circuit and the first
The partition part which divides | segments a 2 wind circuit is provided between the said heating part and the said waste heat part of the said condenser, and it is comprised so that it may become one fin tube type heat exchanger .

  Thereby, since a part of the condenser is used as the heat exhausting section, no extra piping is required, and the configuration can be simplified. In addition, because the heat transfer tube on the refrigerant inflow side, which has the highest temperature of the refrigerant flowing in the condenser, is included in the exhaust heat section, the temperature difference from the exhaust heat air can be increased, and the efficiency of exhaust heat is improved. Thus, the dehumidifying and warming device can be configured compactly.

  The dehumidifying and warming device of the present invention efficiently exhausts a part of the heat of the refrigerant, and the dehumidifying and warming device can be configured compactly.

System diagram of dehumidifying and warming device in Embodiment 1 of the present invention XX sectional view of the dehumidifying and warming device in FIG. Perspective view of the condenser of the dehumidifying and heating device System diagram of clothes dryer equipped with the dehumidifying and heating device The perspective view of the condenser of the dehumidification warming apparatus in Embodiment 2 of this invention System diagram of the dehumidifying and heating device System diagram of a clothing drying device equipped with a conventional dehumidifying and heating device

A first aspect of the present invention is a compressor, a condenser and a heating portion and the exhaust heat unit, iris unit, and a heat pump apparatus which the evaporator or the like coupled in line in which the refrigerant circulates, the heat provided to the condenser parts and disposed the evaporator, disposed in the first air circuit, the exhaust heat portion provided on the condenser having a first blowing means for blowing air to the evaporator and the heating unit, A second wind circuit having a second air blowing means for blowing air to the exhaust heat section, the first wind circuit and the second wind circuit are formed adjacent to each other, and the first wind circuit The circuit is dehumidified and warmed, the heat of the condenser is discharged by the second wind circuit, and the refrigerant inflow side of the condenser is disposed in the exhaust heat unit, and the first wind circuit and the first A partition portion for partitioning the two wind circuits is provided between the heating portion and the exhaust heat portion of the condenser, and one fin tube type With the arrangements so that the exchanger, it is possible to configure the exhaust heat in a portion of the condenser, keeps an extra pipe can be simplified configuration. In addition, since the heat transfer pipe on the refrigerant inflow side of the condenser having a high refrigerant temperature is disposed in the exhaust heat section, a large temperature difference between the air flowing through the second wind circuit and the refrigerant can be taken efficiently. Since heat exchange can be performed, the condenser can be miniaturized and the dehumidifying and warming device can be configured compactly.

A second invention is, in particular, the heating unit and the exhaust heat portion provided on the condenser of the first aspect of the invention, by the heating unit was increased Ri by the warm side, from waste heat of the heating amount of drying air It is possible to increase the size of the air and optimally heat the drying air without any shortage, and the heat exchange between the heating unit and the exhaust heat unit can be performed in a well-balanced manner, so that the dehumidifying and warming device can be made compact.

According to a third aspect of the invention, in particular, the condenser of the first or second aspect of the invention has fins and heat transfer tubes, the heat transfer tubes are formed by flat tubes, and one of the flat tubes is used as a partition . Accordingly, the first wind circuit and the second wind circuit can be partitioned by the flat tube, and the air path can be easily formed.

  In particular, the fourth invention is a clothes dryer provided with the dehumidifying and heating device of any one of the first to third inventions, and can realize a compact clothes dryer.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a system diagram of the dehumidifying and warming device according to the first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line XX of FIG. 1 of the dehumidifying and warming device, and FIG. FIG. 4 is a system diagram of a clothes dryer provided with the dehumidifying and warming device.

  1 to 4, a heat pump device 1 includes a compressor 2 that compresses a refrigerant, a condenser 3 that dissipates heat of the compressed high-temperature and high-pressure refrigerant, and a capillary tube for reducing the pressure of the high-pressure refrigerant. The throttle means 4 is connected to the evaporator 6 through which the refrigerant whose pressure has been reduced to low pressure takes heat from the surroundings, and the refrigerant is circulated by a pipe 6.

  The condenser 3 is arranged in parallel at regular intervals, a large number of fins 3a and 3b through which air flows, and a heat transfer tube 3c as a conduit 6 through which the refrigerant flows in contact with the fins 3a and 3b. It is comprised with the general fin tube type heat exchanger which consists of, The heating part 7 and the exhaust heat part 8 are provided. The fins 3a and 3b are formed of a thin plate such as aluminum, and the heat transfer tube 3c constituting the pipe line 6 is formed of a copper tube.

  The heating unit 7 is installed in the first wind circuit 9, and the air blown by the first blower (first blower unit) (blower) 10 passes through the evaporator 5 and then the heating unit 7. Pass through. The heat transfer tube 3 c disposed in the exhaust heat unit 8 includes a refrigerant inflow side 3 d to the condenser 3, and is installed in a second wind circuit 11 formed adjacent to the first wind circuit 9. The outside air blown by the second blower (second blower means) 12 passes through.

  The heating unit 7 configured in the condenser 3 is larger than the exhaust heat unit 8, and the ventilation cross-sectional area i of the heating unit 7 installed in the first wind circuit 9 is the exhaust unit installed in the second wind circuit 11. It is formed larger than the ventilation cross-sectional area B of the heat part 8. A partition plate 13 is provided between the heating unit 7 and the exhaust heat unit 8 so that the air flowing through the first wind circuit 9 and the air flowing through the second wind circuit 11 are not mixed.

  The arrow A indicates the flow of air flowing through the first wind circuit 9, the arrow B indicates the flow of outside air for cooling flowing through the second wind circuit 11, and the arrow C flows through the pipe 6. The flow of the refrigerant is shown.

  In the dehumidifying / heating apparatus configured as described above, a part of the condenser 3 is used as the heating unit 7 and the other part is used as the exhaust heat unit 8, so that it is not necessary to provide a separate heat exhaust unit. Therefore, the dehumidifying / heating apparatus can be configured compactly.

  Further, the refrigerant flowing in the condenser 3 flows in the state of superheated steam, lowers the temperature to become a gas-liquid two-phase state, flows at the saturation temperature, and when completely liquefied, further lowers the temperature to become the supercooled state. Out of 3 For this reason, the refrigerant temperature is highest on the refrigerant inflow side 3d of the condenser 3. The exhaust heat unit 8 includes the refrigerant inflow side 3d through which this high-temperature refrigerant flows, and can take a large temperature difference from the outside air, so that heat can be efficiently exhausted, and the exhaust heat unit 8 can be made more compact. it can.

  Next, an operation when the dehumidifying / heating apparatus configured as described above is used in a clothes dryer will be described. The 1st wind circuit 9 which installed the heating part 7 is connected with the drying store | warehouse | chamber 14 which accommodates drying objects, such as clothing, and forms the circulation air path through which the air ventilated with the 1st air blower 10 circulates. . The 2nd wind circuit 11 which installed the heat exhaustion part 8 suck | inhales external air with the 2nd air blower 12, passes the heat exhaustion part 8, and exhausts outside.

  When the drying operation is started, the compressor 2 and the first blower 10 are operated. The drying air passes through the heating unit 7 by the first blower 10, is heated by heat radiation from the heating unit 7, becomes warm air, and is sent to the drying chamber 14. The drying air that has come into contact with the clothes in the drying cabinet 14 removes moisture from the clothes and dries the clothes.

  The drying air is given a sensible heat as an amount of heat for evaporation, and thus the temperature is lowered. However, the drying air contains water vapor having substantially the same latent heat released from the clothing and becomes high-humidity air. The enthalpy of dry air before and after coming into contact with clothing is almost constant. The drying air that has become highly humid is cooled in the evaporator 5, deprived of latent heat, dewed and dehumidified. The drying air that has been dehumidified and has a reduced absolute humidity is heated again by the heating unit 7.

  On the other hand, in the heat pump cycle, the high-temperature and high-pressure gas refrigerant compressed by the compressor 2 flows into the exhaust heat section 8 of the condenser 3 and exhausts heat to the outside air flowing through the second wind circuit 11, and the gas-liquid two-phase refrigerant and And flows into the heating unit 7. In the heating unit 7, the drying air flowing through the first wind circuit 9 is heated, and the refrigerant is condensed and liquefied.

  At this time, when a large amount of heating is required, such as immediately after the start of the drying operation, the amount of exhaust heat can be reduced and the amount of heating can be increased by stopping the second blower 12 or reducing the rotational speed. Further, even when the external air temperature is high as in summer, the refrigerant temperature is high and heat can be exhausted.

  Next, the high-pressure refrigerant is depressurized by the throttle means 4 to become a low temperature and a low pressure, and the evaporator 5 takes heat from the drying air and returns to the compressor 2 again. The amount of heat obtained by adding the amount of heat obtained from the input of the compressor 2 to the amount of heat taken by the evaporator 5 by the refrigerant is radiated from the condenser 3, but the amount of heat corresponding to the input of the compressor 2 is preliminarily set by the exhaust heat unit 8. In order to discharge to the outside, the heating amount from the heating unit 7 is balanced at a constant value.

  Here, the amount of heat corresponding to the input of the compressor 2, that is, the amount of heat discharged from the exhaust heat unit 8 and the amount of heat for heating the drying air, that is, the amount of heat given to the drying air by the heating unit 7 are the latter one. Therefore, by making the heating unit 7 larger than the exhaust heat unit 8, heating and exhaust heat can be performed in a well-balanced manner, so that the dehumidifying and warming device can be made compact.

As described above, the heating unit 7 and the evaporator 5 provided in the condenser 3 are disposed, the first air circuit 9 having the first blower 10 that blows air to the evaporator 5 and the heating unit 7, and the condensation And a second wind circuit 11 having a second blower 12 that blows air to the heat exhaust section 8, and is dehumidified and heated by the first wind circuit 9. In addition, the heat of the condenser 3 is discharged by the second wind circuit 11 and the refrigerant inflow side 3d of the condenser 3 is disposed in the heat exhausting portion 8, and a part of the condenser 3 is disposed in the heat exhausting portion 8. Therefore, it is not necessary to provide a separate heat exhauster, and there is no piping connecting the heat exhauster, and the configuration can be simplified. In addition, since the refrigerant inflow side 3d of the heat transfer tube 3c having the highest temperature of the refrigerant flowing in the condenser 3 is included in the exhaust heat section 8, the temperature difference between the air flowing through the second wind circuit 11 and the refrigerant is determined. Since it can take large and can perform heat exchange efficiently, the condenser 3 can be reduced in size and a dehumidification warming apparatus can be made compact.

  Further, the ventilation cross-sectional area A of the heating unit 7 is larger than the ventilation cross-sectional area B of the exhaust heat unit 8, and the heating amount of the drying air is larger than the exhaust heat amount. By increasing the value, the drying air can be heated without a shortage, and the heating unit 7 and the exhaust heat unit 8 can perform heat exchange in a balanced manner, so that the dehumidifying and warming device can be made compact.

  The condenser 3 is provided with a partition plate 13 between the heating unit 7 and the exhaust heat unit 8 so as to define the adjacent first wind circuit 9 and second wind circuit 11. Mixing of the drying air that flows through the first wind circuit 9 and the outside air for cooling that flows through the second wind circuit 11 can be prevented.

  In addition, by installing the dehumidifying and warming device of the present invention in a clothes dryer, it is possible to promote downsizing of the clothes dryer.

(Embodiment 2)
FIG. 5 is a perspective view of the condenser of the dehumidifying and warming device according to the second embodiment of the present invention, and FIG. 6 is a system diagram of the dehumidifying and warming device. The feature of this embodiment is that the heat transfer tube 3 c of the condenser 3 is configured by a flat tube 15. Other configurations are the same as those of the first embodiment, the same reference numerals are given to the same configurations, and the detailed description of the first embodiment is used.

  With the above configuration, since the condenser 3 is configured by using the flat tube 15 for the heat transfer tube 3c configuring the pipe line 6, the first wind circuit 9 and the second wind circuit 11 are partitioned by the flat tube 15. The air path can be easily formed.

  As described above, the dehumidifying / warming device according to the present invention efficiently exhausts a part of the heat of the refrigerant, and the dehumidifying / warming device can be configured compactly. Useful.

DESCRIPTION OF SYMBOLS 1 Heat pump apparatus 2 Compressor 3 Condenser 3d Refrigerant inflow side 4 Throttling means 5 Evaporator 6 Pipe line 7 Heating part 8 Heat exhaust part 9 1st wind circuit 10 1st air blower (1st air blower)
11 Second wind circuit 12 Second blower (second blower)

Claims (4)

A compressor, a condenser and a heating portion and the exhaust heat unit, iris unit, and a heat pump apparatus which the evaporator or the like coupled in line in which the refrigerant circulates, the evaporator and the heating part provided in the condenser disposed, disposed first and wind circuit having a first blowing means, the exhaust heat portion provided on the condenser for blowing air to the evaporator and the heating unit, blown to the heat exhaust unit And a second wind circuit having a second air blowing means, wherein the first wind circuit and the second wind circuit are formed adjacent to each other, and dehumidification and heating are performed by the first wind circuit. The heat of the condenser is discharged by the second wind circuit, the refrigerant inflow side of the condenser is disposed in the exhaust heat section, and the first wind circuit and the second wind circuit are A partition portion for partitioning is provided between the heating portion and the exhaust heat portion of the condenser to form one fin tube type heat exchanger. Uni configured dehumidification warming unit. The heating unit and the exhaust heat portion is provided in the condenser, dehumidifying heating device of the heating unit according to claim 1, wherein the larger Ri by the warm side. 3. The dehumidifying and heating device according to claim 1, wherein the condenser includes fins and heat transfer tubes, the heat transfer tubes are configured by flat tubes, and one of the flat tubes is a partition portion . The clothes dryer provided with the dehumidification warming apparatus of any one of Claims 1-3.

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