CN217678227U - Clothes drying device and washing machine - Google Patents

Abstract

The utility model discloses a clothes drying device and a washing machine, wherein the clothes drying device comprises a drying cavity and a condensation dehumidifier; the condensation dehumidifier comprises a double-cold heat exchanger, and the double-cold heat exchanger is provided with a hot fluid flow channel for wet and hot air to flow through and a cold fluid flow channel for cooling medium to flow through, wherein the cooling medium comprises cooling liquid and indoor air so as to exchange heat between the cooling medium and the wet and hot air to condense the wet and hot air; a first fan for driving the flow of hot and humid air to the hot fluid flow path; a cold source; a second fan for driving the indoor air to flow to the cold fluid flow passage; a temperature sensor for detecting the temperature of the indoor air; a controller for controlling at least the second fan to operate when the indoor air temperature is less than a first target temperature value; and when the indoor air temperature is not less than the first target temperature value, the cooling source is used for introducing cooling liquid into the cold fluid flow channel. This application adopts the mode that liquid cooling and forced air cooling combined together, selects coolant liquid and/or room air to damp and hot air condensation dehumidification according to room air temperature, has improved drying efficiency, has still saved the energy.

Description

Clothes drying device and washing machine

Technical Field

The utility model relates to a stoving clothing technical field, more specifically say, relate to a clothing drying device, the utility model discloses still relate to a washing machine.

Background

The clothes dryer or the washing machine having the clothes drying function rapidly dries the clothes by using hot air. The air dried by the clothes has higher heat and moisture content, the direct discharge can seriously affect the surrounding environment, and the air can be recycled by condensation and dehumidification, thereby realizing zero emission of damp and hot waste gas. The principle of condensation dehumidification is that the hot and humid air is cooled to below the dew point temperature, so that the water vapor in the hot and humid air is condensed to achieve the purpose of reducing the water vapor content in the air, and the reheated air can reach the relative humidity and the temperature meeting the requirements, so that the clothes can be dried again.

However, the purpose of dehumidification by condensation of damp and hot air is realized by introducing the mode of heat exchange of indoor air and damp and hot air at present, the indoor air temperature is limited, the condensation dehumidification efficiency is lower, and the drying efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a clothes drying device to improve drying efficiency.

Another object of the present invention is to disclose a washing machine with the above clothes drying apparatus, so as to improve the drying efficiency.

In order to achieve the above object, the utility model discloses a following technical scheme:

A clothes drying apparatus comprising a drying chamber for placing clothes, and further comprising a condenser-dehumidifier for condensing and dehumidifying hot and humid air exhausted from the drying chamber, the condenser-dehumidifier comprising:

the double-cooling heat exchanger is provided with a hot fluid flow channel and a cold fluid flow channel which are sealed and separated, the hot fluid flow channel is used for allowing damp and hot air to flow through, the cold fluid flow channel is used for allowing a cooling medium to flow through, the cooling medium comprises cooling liquid and indoor air so that the cooling medium exchanges heat with the damp and hot air to condense the damp and hot air, an air inlet of the hot fluid flow channel is communicated with an air outlet of the drying cavity, and an air outlet of the hot fluid flow channel is communicated with an air return opening of the drying cavity;

a first fan for driving hot and humid air to flow to the hot fluid flow path;

the cold source is used for introducing cooling liquid into the cold fluid flow channel;

a second fan for driving indoor air to flow to the cold fluid flow passage;

a temperature sensor for detecting the temperature of the indoor air;

the controller is connected with the temperature sensor and at least controls the second fan to operate to enable indoor air to flow into the cold fluid flow channel when the indoor air temperature is lower than a first target temperature value; when the indoor air temperature is not lower than the first target temperature value, the controller controls the second fan to stop running and controls the cold source to introduce cooling liquid into the cold fluid flow channel;

And a heater is arranged between the air outlet of the hot fluid flow channel and the air return opening of the drying cavity.

Preferably, in the clothes drying device, when the indoor air temperature is lower than the first target temperature value and higher than a second target temperature value, the controller controls the second fan to operate, and controls the cold source to introduce the cooling liquid into the cold fluid flow channel; when the indoor air temperature is lower than the second target temperature value, the controller controls the second fan to operate, and controls the cold source to stop introducing cooling liquid into the cold fluid flow channel;

wherein the second target temperature value is less than the first target temperature value.

Preferably, in the clothes drying device, the cold fluid runner includes a liquid cooling fluid runner and an air cooling fluid runner, the liquid cooling fluid runner is used for allowing cooling liquid to flow through, and the air cooling fluid runner is used for allowing indoor air to flow through; the cold source includes:

a liquid storage structure storing cooling liquid, wherein a liquid outlet of the liquid storage structure is connected with a liquid inlet of the liquid cooling fluid flow channel, and a liquid return port of the liquid storage structure is connected with a liquid outlet of the liquid cooling fluid flow channel;

And the circulating pump drives the cooling liquid to circularly flow between the liquid storage structure and the liquid cooling fluid flow channel.

Preferably, the clothes drying device further comprises a semiconductor refrigerator for cooling the cooling liquid and a third fan arranged at the hot end of the semiconductor refrigerator, and the hot end of the semiconductor refrigerator is provided with a heat dissipation fin.

Preferably, in the clothes drying device, the semiconductor refrigerator is arranged between the liquid outlet of the liquid storage structure and the liquid inlet of the liquid cooling fluid flow channel, and the cold end of the semiconductor refrigerator is provided with a heat exchange flow channel for cooling liquid to flow through.

Preferably, in the clothes drying device, the heat exchange flow channel is a serpentine coil, and the serpentine coil is tightly attached to the cold end of the semiconductor refrigerator.

Preferably, in the clothes drying device, the liquid storage structure is a liquid storage tank with an opening at the top, the semiconductor refrigerator is arranged in the liquid storage tank, the third fan is arranged at the opening, and the cold end of the semiconductor refrigerator is in contact with the cooling liquid in the liquid storage tank.

Preferably, in the clothes drying device, the double-cooling heat exchanger includes a plurality of heat exchange plates, a first space is provided between adjacent heat exchange plates to form a plurality of layers of the hot fluid flow channels, each layer of the heat exchange plates includes two layers of liquid cooling plates arranged in parallel, a second space is provided between the two layers of the heat exchange plates to form the air-cooling fluid flow channel, and the two layers of the liquid cooling plates are provided with cavities to form the liquid-cooling fluid flow channels;

The liquid outlet of the liquid storage structure is connected with all liquid inlets of the liquid cooling fluid flow passages through a liquid supply pipe connecting splitter, and all the liquid outlets of the liquid cooling fluid flow passages are connected with a liquid return pipe and a liquid return port of the liquid storage structure through a liquid collector.

Preferably, in the clothes drying device, the two liquid cooling plates are both blowing plates, and convex ribs are distributed on the outer surface of each liquid cooling plate, which is in contact with the hot and humid air.

Preferably, in the above-mentioned clothes drying apparatus,

the hot fluid flow direction of the hot humid air in the hot fluid flow channel is perpendicular to the cold fluid flow direction of the cooling medium in the cold fluid flow channel.

According to the technical scheme, the clothes drying device comprises a drying cavity for placing clothes and a condensation dehumidifier for condensing and dehumidifying the hot and humid air exhausted from the drying cavity; the condensation dehumidifier comprises a double-cold heat exchanger, and is provided with a hot fluid flow channel and a cold fluid flow channel which are sealed and separated, the hot fluid flow channel is used for allowing damp and hot air to flow through, the cold fluid flow channel is used for allowing a cooling medium to flow through, the cooling medium comprises cooling liquid and indoor air so as to enable the cooling medium to exchange heat with the damp and hot air to condense the damp and hot air, an air inlet of the hot fluid flow channel is communicated with an air outlet of the drying cavity, and an air outlet of the hot fluid flow channel is communicated with an air return port of the drying cavity; a first fan for driving the flow of hot and humid air to the hot fluid flow path; a cold source for introducing cooling liquid into the cold fluid channel; a second fan for driving the indoor air to flow to the cold fluid flow passage; a temperature sensor for detecting the temperature of the indoor air; the controller is connected with the temperature sensor, and when the temperature of the indoor air is lower than a first target temperature value, the controller at least controls the second fan to operate so as to enable the indoor air to flow into the cold fluid flow channel; when the indoor air temperature is not lower than the first target temperature value, the controller controls the second fan to stop running and controls the cooling source to introduce cooling liquid into the cold fluid channel; wherein, a heater is arranged between the air outlet of the hot fluid flow channel and the air return opening of the drying cavity.

When the clothes drying device performs drying work, hot air flows across the surface of clothes in the drying cavity to heat the clothes, and simultaneously takes away a large amount of water vapor generated by evaporation, at the moment, the air is damp and hot air with high heat and high moisture content, and the damp and hot air is filtered through the exhaust port of the drying cavity; then the air is guided to an air inlet of a hot fluid flow channel of the double-cold heat exchanger by a first fan and enters the hot fluid flow channel of the double-cold heat exchanger;

meanwhile, the temperature of the indoor air is detected through the temperature sensor, the detected temperature is sent to the controller, when the temperature of the indoor air is lower than a first target temperature value, the controller at least controls the second fan to operate so that the indoor air flows into the cold fluid flow channel, and at least the indoor air is used as a cooling medium; when the indoor air temperature is not lower than the first target temperature value, the controller controls the second fan to stop running and controls the cooling source to introduce cooling liquid into the cold fluid flow channel, and the cooling liquid is used as a cooling medium.

In the double-cooling heat exchanger, the hot and humid air with higher temperature is cooled by the cooling medium with lower temperature, so that the temperature and the humidity of the hot and humid air are reduced; the damp and hot air is discharged from an air outlet of the hot fluid flow channel after being condensed, is guided to the heater, is heated to the target drying temperature, enters the drying cavity from an air return opening of the drying cavity, and is recycled and reused for drying clothes; the temperature of the cooling medium is increased after heat exchange, and the cooling medium flows out from an outlet of the cold fluid channel.

In summary, the double-cooling heat exchanger of the utility model adopts a combination of liquid cooling and air cooling, and selects cooling liquid and/or indoor air as cooling medium to condense and dehumidify damp and hot air according to the temperature of the indoor air; when the temperature of the indoor air is lower than the first target temperature value, the low-temperature indoor air at least in the cold weather is used for condensing and dehumidifying the damp and hot air in an air cooling mode, so that the heat exchange amount of the condensation of the cooling liquid is reduced, and the energy is saved; when the temperature of indoor air is not less than first target temperature value, when the indoor air is not enough to satisfy the condensation dehumidification requirement of damp and hot air, adopt the liquid cooling mode to carry out the condensation dehumidification to damp and hot air through the coolant liquid to eliminated the restriction of indoor air temperature, the specific heat capacity of coolant liquid is great moreover, and condensation dehumidification efficiency is higher, thereby has improved drying efficiency.

Furthermore, the utility model discloses a damp and hot waste gas is not directly arranged outward for the dry clothing of circulation has reduced the influence to the environment.

The utility model also discloses a washing machine, including the laundry section of thick bamboo that has the laundry chamber, still include any kind of clothing drying device of above-mentioned, the laundry chamber forms the stoving chamber of clothing drying device because above-mentioned clothing drying device has above-mentioned effect, the washing machine that has above-mentioned clothing drying device has same effect, and the event is no longer repeated herein.

Drawings

In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of the operation of a condenser-dehumidifier of a clothes drying apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a double-cooling heat exchanger disclosed by the embodiment of the invention;

fig. 3 is a schematic flow diagram of a cooling and heating fluid of a dual-cooling heat exchanger disclosed in an embodiment of the present invention;

fig. 4 is a schematic diagram of a relative position structure of a semiconductor cooler and a third fan according to an embodiment of the present invention;

fig. 5 is a schematic view of a heat exchange interface structure of a liquid cooling plate disclosed in an embodiment of the present invention.

Detailed Description

The embodiment of the utility model discloses clothing drying device has improved drying efficiency.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a clothes drying apparatus disclosed in the embodiment of the present invention includes a drying chamber for placing clothes, and a condensing dehumidifier for condensing and dehumidifying hot and humid air exhausted from the drying chamber; the condensation dehumidifier comprises a double-cold heat exchanger 1, and is provided with a hot fluid flow channel 13 and a cold fluid flow channel which are sealed and separated, wherein the hot fluid flow channel 13 is used for allowing damp and hot air to flow through, the cold fluid flow channel is used for allowing a cooling medium to flow through, the cooling medium comprises cooling liquid and indoor air so as to enable the cooling medium to exchange heat with the damp and hot air and further condense the damp and hot air, an air inlet of the hot fluid flow channel 13 is communicated with an air outlet of the drying cavity, and an air outlet of the hot fluid flow channel 13 is communicated with an air return opening of the drying cavity; a first fan 7 for driving the hot and humid air to flow toward the hot fluid flow path 13; a cold source for introducing cooling liquid into the cold fluid channel; a second fan 6 for driving the indoor air to flow to the cold fluid flow path; a temperature sensor for detecting the temperature of the indoor air; the controller is connected with the temperature sensor, and when the indoor air temperature is lower than a first target temperature value, the controller at least controls the second fan 6 to operate so as to enable indoor air to flow into the cold fluid flow channel; when the indoor air temperature is not less than the first target temperature value, the controller controls the second fan 6 to stop running and controls the cooling source to feed cooling liquid into the cold fluid flow channel; wherein, a heater is arranged between the air outlet of the hot fluid flow channel 13 and the air return port of the drying cavity.

It should be noted that the body of the clothes drying apparatus is provided with an air inlet for introducing the indoor air into the cold fluid flow passage and an air outlet for leading the indoor air out of the cold fluid flow passage, and both the air inlet and the air outlet are communicated with the outside.

When the clothes drying device performs drying work, hot air flows across the surface of clothes in the drying cavity to heat the clothes, and simultaneously takes away a large amount of water vapor generated by evaporation, at the moment, the air is damp and hot air with high heat and high moisture content, and the damp and hot air is filtered through the exhaust port of the drying cavity; then the air is guided to an air inlet of a hot fluid flow channel 13 of the double-cold heat exchanger 1 by the first fan 7 and enters the hot fluid flow channel 13 of the double-cold heat exchanger 1;

meanwhile, the temperature of the indoor air is detected through the temperature sensor, the detected temperature is sent to the controller, when the indoor air temperature is lower than a first target temperature value, the controller at least controls the second fan 6 to operate so that the indoor air flows into the cold fluid flow channel, and at least the indoor air is used as a cooling medium; when the indoor air temperature is not less than the first target temperature value, the controller controls the second fan 6 to stop running and controls the cooling source to introduce cooling liquid into the cold fluid flow channel, and the cooling liquid is used as a cooling medium.

In the double-cooling heat exchanger 1, the hot and humid air with higher temperature is cooled by the cooling medium with lower temperature, so that the temperature and the humidity of the hot and humid air are reduced; the damp and hot air is discharged from the air outlet of the hot fluid flow channel 13 after being condensed, is guided to the heater, is heated to the target drying temperature, enters the drying cavity from the air return opening of the drying cavity, and is recycled and reused for drying clothes; the temperature of the cooling medium is increased after heat exchange, and the cooling medium flows out from an outlet of the cold fluid channel.

To sum up, the double-cooling heat exchanger 1 of the present invention adopts a combination of liquid cooling and air cooling, and selects cooling liquid and/or indoor air as cooling medium to condense and dehumidify damp and hot air according to the temperature of the indoor air; when the temperature of the indoor air is lower than the first target temperature value, the low-temperature indoor air at least in the cold weather is used for condensing and dehumidifying the damp and hot air in an air cooling mode, so that the heat exchange amount of the condensation of the cooling liquid is reduced, and the energy is saved; when the temperature of indoor air is not less than first target temperature value, when the indoor air is not enough to satisfy the condensation dehumidification requirement of damp and hot air, adopt the liquid cooling mode to carry out the condensation dehumidification to damp and hot air through the coolant liquid to eliminated the restriction of indoor air temperature, the specific heat capacity of coolant liquid is great moreover, and condensation dehumidification efficiency is higher, thereby has improved drying efficiency.

Furthermore, the utility model discloses a damp and hot waste gas is not directly arranged outward for the dry clothing of circulation has reduced the influence to the environment.

In a preferred embodiment, when the indoor air temperature is lower than the first target temperature value and higher than the second target temperature value, the controller controls the second fan 6 to operate, and simultaneously controls the cooling source to introduce the cooling liquid into the cold fluid flow channel; when the indoor air temperature is lower than the second target temperature value, the controller controls the second fan 6 to operate, and controls the cold source to stop introducing the cooling liquid into the cold fluid flow channel; wherein the second target temperature value is less than the first target temperature value.

The first target temperature value is selected as an indoor air critical temperature which is not enough to meet the condensation condition of the hot humid air, and is specifically 30 ℃; the second target temperature value is selected to be 20 ℃ which is the critical temperature of the indoor air when the indoor air is not enough to meet the requirement of condensation degree and the liquid cooling mode is needed to be adopted; of course, the two target temperature values are adaptively changed according to the adjustment of the actual drying parameters.

When the clothes drying device is used for drying, when the temperature of indoor air detected by the temperature sensor is lower than 20 ℃, the controller controls the second fan 6 to operate so as to introduce the indoor air into the cold fluid flow channel, the ambient temperature is low enough, the requirement on the condensation degree can be met only by using the indoor air as a cooling medium to exchange heat with damp and hot air, and the clothes drying device is particularly suitable for the condition that the indoor temperature is low in winter and early spring in a warm air-free area; when the temperature of the indoor air is between 20 ℃ and 30 ℃, the controller controls the second fan 6 to operate so as to introduce the indoor air into the cold fluid flow channel, and meanwhile, the cooling source is controlled to introduce cooling liquid into the cold fluid flow channel, so that the ambient temperature is not low enough, the indoor air is not enough to meet the requirement of condensation degree, and the indoor air and the cooling liquid are used as cooling media to simultaneously exchange heat with damp and hot air, so that the condensation requirement can be met, the consumption of the cooling liquid can be reduced, and energy can be saved; when the temperature of the indoor air is higher than or equal to 30 ℃, the controller only controls the cooling source to introduce the cooling liquid into the cold fluid flow channel, and at the moment, the environment temperature is high, the condensation effect of the indoor air is limited, and the condensation effect of the cooling liquid on the damp and hot air can be influenced.

The embodiment can save energy to the maximum extent and reduce cost; the utility model can also only set a first target temperature value, and only adopt air cooling when the indoor air temperature is less than the first target temperature value; otherwise, only liquid cooling is used.

Specifically, the cold fluid flow passage includes a liquid cooling fluid flow passage and an air cooling fluid flow passage 12, the liquid cooling fluid flow passage is used for cooling liquid to flow through, and the air cooling fluid flow passage 12 is used for indoor air to flow through. This application introduces the coolant liquid through liquid cooling fluid runner respectively, introduces indoor air through air-cooled fluid runner 12, and both cooling medium have solitary runner, make things convenient for cooling medium's switching. It is understood that the cold fluid channel may also include only one channel, and when air cooling is adopted, indoor air is introduced; when liquid cooling is adopted, cooling liquid is introduced.

The cold source comprises a liquid storage structure 3 for storing cooling liquid, a liquid outlet of the liquid storage structure 3 is connected with a liquid inlet 14 of the liquid cooling fluid flow channel, and a liquid return port of the liquid storage structure 3 is connected with a liquid outlet 15 of the liquid cooling fluid flow channel; and the circulating pump drives the cooling liquid to circularly flow between the liquid storage structure 3 and the liquid cooling fluid flow channel. It should be noted that, since the thermal capacity of the cooling liquid in the liquid storage structure 3 is large, and the temperature rise generated by the same heat is small, the cooling liquid flowing out from the liquid cooling fluid flow channel can be cooled after entering the liquid storage structure 3.

In order to facilitate the cooling liquid to enter and cool out at the heat of the liquid storage structure 3, the liquid outlet of the liquid storage structure 3 is arranged at the bottom of the liquid storage structure 3, the liquid return port of the liquid storage structure 3 is arranged at the top of the liquid storage structure 3, so that the cooling liquid after temperature rise enters from the top, the cooling liquid with lower temperature flows out from the lower side, and the cooling effect of the cooling liquid is ensured.

When the clothes drying device is used for drying, and a liquid cooling mode is adopted, the double-cold heat exchanger 1 is under the action of the circulating pump, and cooling liquid in the liquid storage structure 3 is drained to a liquid cooling fluid flow channel of the double-cold heat exchanger 1 through a liquid outlet of the liquid storage structure 3. In the double-cooling heat exchanger 1, the hot and humid air with higher temperature is cooled by the cooling liquid with lower temperature, so that the temperature and the humidity of the hot and humid air are reduced; the temperature of the cooling liquid rises after heat exchange, the cooling liquid flows out from the liquid outlet 15 of the liquid cooling fluid flow channel, then the cooling liquid flows back to the liquid storage structure 3 from the liquid return port of the liquid storage structure 3 to be cooled, the cooled cooling liquid flows through the liquid inlet 14 of the liquid cooling fluid flow channel again from the liquid outlet of the liquid storage structure 3 to enter the liquid cooling fluid flow channel, the circulating flow of the cooling liquid is realized, and the cooling effect is ensured.

The condensation dehumidifier is integrally placed in a condensation cavity of the clothes drying device, and the condensation cavity and the drying cavity are independently arranged. The cooling liquid exists in the circulation closed system, realizes the circulative cooling utilization of cooling liquid through stock solution structure 3, has reduced the cooling liquid and has consumed. It can be understood that the utility model discloses can also utilize the delivery pipe as the cold source, utilize the water that continuously flows as the coolant liquid.

Further, the clothes drying device further comprises a semiconductor refrigerator 8 used for cooling the cooling liquid and a third fan 10 arranged at the hot end of the semiconductor refrigerator 8, and the hot end of the semiconductor refrigerator 8 is provided with a radiating fin 9. In order to simplify the structure, the radiating fins 9 are linear and are uniformly distributed on the end surface of the hot end of the semiconductor cooler 8.

The utility model discloses utilize the coolant liquid of the interior large capacity of stock solution structure 3 to cool down to the coolant liquid after heaing up, and utilize semiconductor refrigerator 8 to assist the cooling to the coolant liquid, increase the radiating efficiency through radiating fin 9 simultaneously, utilize air current around the disturbance of third fan 10, realize the interior forced convection of cavity, do benefit to 8 hot junctions heat dissipations of semiconductor refrigerator, can make the coolant liquid reach the lower temperature, refrigeration efficiency is higher, and then improved the condensation efficiency to the damp and hot air, thereby improve the work efficiency of whole dry clothing device, realize the quick-drying.

Of course, the present invention can also be used without the above semiconductor cooler 8, so that the third fan 10 blows air to the liquid storage structure 3.

In a specific embodiment, the semiconductor refrigerator 8 is disposed between the liquid outlet of the liquid storage structure 3 and the liquid inlet 14 of the liquid cooling fluid flow passage, and the cold end of the semiconductor refrigerator 8 is provided with a heat exchange flow passage for the cooling fluid to flow through.

In this embodiment, the cooling liquid flowing out of the liquid outlet of the liquid storage structure 3 firstly flows into the heat exchange flow channel of the semiconductor refrigerator 8, and the semiconductor refrigerator 8 is utilized to cool the cooling liquid again, so that the cooling liquid reaches a lower temperature, and then flows into the liquid inlet 14 of the liquid-cold fluid flow channel. In the present embodiment, the semiconductor refrigerator 8 is used to cool the cooling liquid flowing into the liquid-cooling fluid channel, and the cooling efficiency is high.

As shown in fig. 4, in order to further improve the cooling efficiency of the cooling liquid, the heat exchange flow channel is a serpentine coil 4, and the serpentine coil 4 is tightly attached to the cold end of the semiconductor refrigerator 8. The inlet of serpentine coil 4 is connected to liquid storage structure 3's liquid outlet, and the coolant liquid through elementary refrigerated that flows out from liquid storage structure 3 passes through the pipeline and gets into serpentine coil 4, through semiconductor cooler 8 further cooling, and the coolant liquid is through the pipeline that the liquid outlet of serpentine coil 4 links to each other with liquid cooling fluid flow channel's inlet 14 after the cooling is handled, and the liquid cooling fluid flow channel of drainage to two cold heat exchangers 1 is used for again to damp and hot air cooling.

Alternatively, the heat exchange channel may have other structures, such as a circular coil, or a hollow cooling block, as long as a cavity for flowing the cooling liquid is provided.

In another specific embodiment, the reservoir structure 3 is a reservoir with an opening at the top. The opening of the liquid storage tank can realize heat exchange with the outside, and the cooling efficiency of the cooling liquid is improved. Of course, the liquid storage structure 3 may be a closed liquid storage tank, a liquid storage barrel, or the like.

In this embodiment, the semiconductor refrigerator 8 is disposed in the liquid storage tank, the third fan 10 is disposed at the opening, and the cold end of the semiconductor refrigerator 8 contacts the cooling liquid in the liquid storage tank. The cooling liquid in the reservoir is cooled by the cold end of the semiconductor refrigerator 8, so that the cooling liquid is indirectly cooled, and the cooling efficiency of the cooling liquid is accelerated.

As shown in fig. 1-2, the double-cooling heat exchanger 1 includes multiple layers of heat exchange plates, a first space is provided between adjacent heat exchange plates to form multiple layers of hot fluid flow channels 13, each layer of heat exchange plate includes two layers of liquid-cooling plates 11 arranged in parallel, a second space is provided between the two layers of liquid-cooling plates to form an air-cooling fluid flow channel 12, and the two layers of liquid-cooling plates 11 are both provided with cavities to form liquid-cooling fluid flow channels; wherein, the liquid outlet of stock solution structure 3 is connected with all liquid cooling fluid flow's inlet 14 through a liquid feed pipe connection shunt 5, and all liquid cooling fluid flow's liquid outlet 15 is connected a liquid return pipe through flow combiner 2 and is connected with stock solution structure 3's liquid return mouth.

Each layer of hot fluid flow channel 13 is provided with an air inlet and an air outlet which are oppositely arranged, each layer of heat exchange plate comprises two layers of liquid cooling fluid flow channels which are formed by liquid cooling plates 11 and are arranged at intervals and an air cooling fluid flow channel 12 which is positioned between the two layers of liquid cooling fluid flow channels, each layer of liquid cooling fluid flow channel is provided with an inlet 14 and an outlet 15 which are oppositely arranged, and each layer of air cooling fluid flow channel 12 is provided with an air inlet and an air outlet which are oppositely arranged.

When the liquid cooling mode is adopted, the cooling liquid is respectively shunted and converged at the liquid inlet 14 and the liquid outlet 15 of the liquid cooling fluid flow channel, the cooled cooling liquid is shunted at the liquid inlet side of the liquid cooling fluid flow channel and then respectively enters the liquid inlet 14 of each layer of liquid cooling fluid flow channel, heat exchange is carried out between the cooling liquid and the hot and humid air through the liquid cooling plate 11, and the warmed cooling liquid is shunted to the liquid outlet 15 of all the liquid cooling fluid flow channels of the double-cooling heat exchanger 1 and then is drained to the liquid inlet of the liquid storage structure 3 through a pipeline for cooling.

When the air cooling mode is adopted, the indoor air is introduced into the air cooling fluid flow passage 12 by utilizing the second air cooling mode, the moist and hot air on one side of the heat exchange plate far away from the air cooling fluid flow passage 12 is indirectly condensed by cooling the heat exchange plates on the two sides, and the heated indoor air is discharged.

In the double-cold heat exchanger 1, the multilayer hot fluid flow channel 13 divides the damp and hot air into a plurality of strands, and the multilayer cold fluid flow channel formed by the multilayer heat exchange plates is used for cooling the damp and hot air in a dispersing manner, so that the heat exchange contact area between the damp and hot air and the cooling liquid is increased, the heat exchange uniformity is ensured, and the condensation efficiency is improved. It can be understood that the utility model discloses a two cold heat exchangers 1 still can be other structures, like interval arrangement at the liquid cooling heat exchange tube and the air cooling heat exchange tube on same layer, have the clearance between the heat exchange tube and supply damp and hot air to flow through, perhaps set up hot-fluid runner 13 between the adjacent two-layer heat exchange tube.

For convenience of processing, the two layers of liquid cooling plates 11 are both blowing plates, and convex ribs are distributed on the outer surfaces for contacting with the hot and humid air. The blowing plate is made of aluminum alloy, and flow paths which are communicated with each other are arranged inside the blowing plate to form a liquid cooling fluid flow channel, so that the circulation of cooling liquid is facilitated. The heat exchange interface in contact with the hot and humid air is the plate surface of the blowing plate, so that the heat exchange efficiency is high; as shown in fig. 5, the ribs are circular rings, but may have other shapes. The outer surface of the blowing plate is used as a heat exchange interface of cold and hot fluid, and the convex ribs are beneficial to enhancing airflow disturbance, enhancing heat exchange and improving the condensation efficiency of damp and hot air. Of course, the surface of the heat exchanger plate may also be plane.

Fins can be arranged on the outer surface of the liquid cooling plate 11 forming the air cooling fluid flow channel 12, so that the air cooling heat exchange area is increased, and the heat exchange is strengthened.

In order to further optimize the technical scheme, the cooling liquid is a mixed liquid of water, ethylene glycol and graphene. The cooling liquid can meet the requirements of no freezing under low-temperature working conditions and strong heat exchange capacity, is low in cost and strong in heat carrying capacity of water, and can realize high-efficiency water condensation. Other liquids such as hydrocarbon refrigerants, freon, etc. may also be used as the cooling fluid.

For convenience of layout, the hot fluid flow direction of the hot humid air in the hot fluid flow channel 13 is perpendicular to the cold fluid flow direction of the cooling medium in the cold fluid flow channel. As shown in fig. 3, the flow direction of the hot humid air is in the direction a, the flow direction of the cooling medium is in the direction B, and the direction a is perpendicular to the direction B; at this time, the inlet and outlet pipes of the cooling medium do not interfere with the inlet and outlet of the hot humid air in the hot fluid flow channel 13, so that the heat exchange efficiency is ensured. It is understood that the A direction and the B direction can also be arranged in parallel; the flow direction of the cooling liquid as the cooling medium and the flow direction of the indoor air may be the same or different.

The utility model discloses a dry clothing device can be solitary dryer, also can be for the structure on the washing machine that has the stoving function.

The embodiment of the utility model provides a still disclose a washing machine, including the laundry section of thick bamboo that has the laundry chamber, still include the dry clothing device that any one of above-mentioned embodiment provided, above-mentioned laundry chamber forms the stoving chamber of dry clothing device, has improved drying efficiency, and its advantage is brought by the dry clothing device, and the relevant part in above-mentioned embodiment is referred to specific please, just no longer gives unnecessary details here.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (11)

1. A clothes drying apparatus comprising a drying chamber for placing clothes, and further comprising a condensation dehumidifier for condensing and dehumidifying hot and humid air exhausted from the drying chamber, the condensation dehumidifier comprising:

the double-cold heat exchanger (1) is provided with a hot fluid flow channel (13) and a cold fluid flow channel which are sealed and separated, the hot fluid flow channel (13) is used for allowing damp and hot air to flow through, the cold fluid flow channel is used for allowing a cooling medium to flow through, the cooling medium comprises cooling liquid and indoor air so that the cooling medium exchanges heat with the damp and hot air to condense the damp and hot air, an air inlet of the hot fluid flow channel (13) is communicated with an air outlet of the drying cavity, and an air outlet of the hot fluid flow channel (13) is communicated with an air return opening of the drying cavity;

a first fan (7) for driving hot and humid air to the hot fluid flow path (13);

the cold source is used for introducing cooling liquid into the cold fluid flow channel;

a second fan (6) for driving indoor air to flow to the cold fluid flow passage;

a temperature sensor for detecting the temperature of the indoor air;

the controller is connected with the temperature sensor and at least controls the second fan (6) to operate to enable indoor air to flow into the cold fluid flow channel when the indoor air temperature is lower than a first target temperature value; when the indoor air temperature is not lower than the first target temperature value, the controller controls the second fan (6) to stop running and controls the cold source to introduce cooling liquid into the cold fluid flow channel;

And a heater is arranged between the air outlet of the hot fluid flow channel (13) and the air return opening of the drying cavity.

2. The clothes drying device according to claim 1, wherein when the indoor air temperature is lower than the first target temperature value and higher than a second target temperature value, the controller controls the second fan (6) to operate and controls the cold source to feed cooling liquid into the cold fluid flow channel; when the indoor air temperature is lower than the second target temperature value, the controller controls the second fan (6) to operate, and controls the cold source to stop introducing cooling liquid into the cold fluid flow channel;

wherein the second target temperature value is less than the first target temperature value.

3. The clothes drying apparatus of claim 1, wherein said cold fluid flow path comprises a liquid cooling fluid flow path for passing cooling fluid therethrough and an air cooling fluid flow path (12) for passing indoor air therethrough; the cold source includes:

the liquid storage structure (3) is stored with cooling liquid, a liquid outlet of the liquid storage structure (3) is connected with a liquid inlet (14) of the liquid cooling fluid flow channel, and a liquid return port of the liquid storage structure (3) is connected with a liquid outlet (15) of the liquid cooling fluid flow channel;

And the circulating pump drives the cooling liquid to circularly flow between the liquid storage structure (3) and the liquid cooling fluid flow channel.

4. A clothes drying apparatus according to claim 3, further comprising a semiconductor refrigerator (8) for cooling the cooling liquid and a third fan (10) provided at the hot end of said semiconductor refrigerator (8), and said semiconductor refrigerator (8) is provided with heat dissipating fins (9) at the hot end.

5. Clothes drying apparatus according to claim 4, characterized in that said semiconductor refrigerator (8) is arranged between the outlet of said liquid holding structure (3) and the inlet (14) of said liquid-cooled fluid flow passage, the cold end of said semiconductor refrigerator (8) being provided with a heat exchange flow passage for the cooling liquid to flow through.

6. Clothes drying device according to claim 5, characterised in that said heat exchange flow path is a serpentine coil (4), said serpentine coil (4) being in close abutment with the cold end of said semiconductor refrigerator (8).

7. Clothes drying device according to claim 4, characterized in that said liquid storage structure (3) is a liquid tank with an opening at the top, said semiconductor refrigerator (8) is arranged in said liquid tank, said third fan (10) is arranged at said opening, and said cold end of said semiconductor refrigerator (8) is in contact with the cooling liquid in said liquid tank.

8. Laundry drying apparatus according to claim 3, characterized in that the double-cold heat exchanger (1) comprises a plurality of layers of heat exchanger plates, adjacent heat exchanger plates being provided with a first space between them to form a plurality of layers of said hot fluid flow channel (13), each layer of heat exchanger plates comprising two layers of liquid-cold plates (11) arranged in parallel, and a second space between them to form said air-cooled fluid flow channel (12), both layers of liquid-cold plates (11) being provided with cavities to form said liquid-cooled fluid flow channel;

the liquid outlet of the liquid storage structure (3) is connected with all liquid inlets (14) of the liquid cooling fluid flow channels through a liquid supply pipe connecting divider (5), and all liquid outlets (15) of the liquid cooling fluid flow channels are connected with a liquid return pipe through a junction station (2) and connected with a liquid return port of the liquid storage structure (3).

9. Clothes drying device according to claim 8, characterized in that both layers of said liquid-cooled panels (11) are inflatable panels, and the outer surface intended to come into contact with the hot and humid air is lined with ribs.

10. Clothes drying apparatus according to claim 1,

the hot fluid flow direction of the wet hot air in the hot fluid flow channel (13) is vertical to the cold fluid flow direction of the cooling medium in the cold fluid flow channel.

11. A washing machine comprising a washing drum having a washing chamber, characterized in that it further comprises a drying device according to any one of claims 1-10, said washing chamber forming a drying chamber of said drying device.

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