CN114427162B - Clothes drying equipment and control method thereof - Google Patents
Clothes drying equipment and control method thereof Download PDFInfo
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- CN114427162B CN114427162B CN202011186725.6A CN202011186725A CN114427162B CN 114427162 B CN114427162 B CN 114427162B CN 202011186725 A CN202011186725 A CN 202011186725A CN 114427162 B CN114427162 B CN 114427162B
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- 238000001035 drying Methods 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 304
- 238000003860 storage Methods 0.000 claims abstract description 93
- 238000009833 condensation Methods 0.000 claims abstract description 35
- 230000005494 condensation Effects 0.000 claims abstract description 35
- 238000011282 treatment Methods 0.000 claims abstract description 21
- 230000001502 supplementing effect Effects 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims description 15
- 238000005406 washing Methods 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 9
- 239000008400 supply water Substances 0.000 claims description 6
- 230000003213 activating effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 description 18
- 239000007788 liquid Substances 0.000 description 6
- 239000000523 sample Substances 0.000 description 5
- 230000002572 peristaltic effect Effects 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
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- 230000005012 migration Effects 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
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Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/24—Condensing arrangements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/26—Heating arrangements, e.g. gas heating equipment
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/32—Control of operations performed in domestic laundry dryers
- D06F58/34—Control of operations performed in domestic laundry dryers characterised by the purpose or target of the control
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/58—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to condensation, e.g. condensate water level
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/60—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to auxiliary conditioning or finishing agents, e.g. filling level of perfume tanks
- D06F2103/62—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to auxiliary conditioning or finishing agents, e.g. filling level of perfume tanks related to systems for water or steam used for conditioning or finishing
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
The embodiment of the application provides clothes drying equipment and a control method thereof, wherein the clothes drying equipment comprises a barrel assembly, a circulating air duct, a condenser, a condensation water path, a switching valve, a steam generator, a water storage piece and a water supplementing pump, wherein the barrel assembly is provided with a clothes treatment cavity; the circulating air duct is communicated with the clothes treatment cavity; the condenser is arranged on the circulating air duct; the condensing waterway supplies water for the condenser; the switch valve is arranged on the condensed water path to selectively switch on or off the condensed water path; the steam generator is provided with a water inlet; the water storage piece is provided with a water storage cavity communicated with the water inlet, the water storage cavity is communicated with at least one water outlet of the switch valve, or the water storage cavity is communicated with a condensation waterway positioned at the downstream of the switch valve. According to the clothes drying equipment provided by the embodiment of the application, the water storage cavity can improve the water inlet stability of the steam generator, so that the steam generator can stably generate steam; the steam generator and the condensation waterway share one switch valve, so that one valve is saved, the production and manufacturing cost is reduced, and the pipeline arrangement is also facilitated.
Description
Technical Field
The application relates to the technical field of clothes washing and protecting, in particular to clothes drying equipment and a control method thereof.
Background
The washing and drying integrated machine is provided with a steam generator, and steam generated by the steam generator enters the cylinder body so as to care clothes. In the related art, the washing and drying integrated machine is provided with a special waterway and a switch valve arranged on the waterway for the steam generator, the waterway supplies water for the steam generator, but the steam generator is easy to generate unstable water inflow, namely excessive or too little water inflow, so that the steam quality of the steam generator is influenced, and the nursing effect on clothes is influenced.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a clothes drying apparatus capable of stably generating steam and a control method of the clothes drying apparatus.
To achieve the above object, an embodiment of the present application provides a clothes drying apparatus, including: the device comprises a cylinder body, a circulating air duct, a condenser, a condensation waterway, a switch valve, a steam generator and a water storage piece, wherein the cylinder body is provided with a clothes treatment cavity; the circulating air duct is communicated with the clothes treatment cavity; the condenser is arranged on the circulating air duct; the condensation waterway supplies water for the condenser; the switch valve is arranged on the condensed water path to selectively switch on or off the condensed water path; the steam generator is used for generating steam to be supplied to the clothes treatment cavity, and is provided with a water inlet; the water storage piece is provided with a water storage cavity communicated with the water inlet, the water storage cavity is communicated with at least one water outlet of the switch valve, or the water storage cavity is communicated with the condensation waterway positioned at the downstream of the switch valve.
In some embodiments, the clothes drying apparatus further comprises a water replenishment pump for pumping water in the water storage chamber into the steam generator.
In some embodiments, the clothes drying apparatus includes a control main board and a temperature detecting device, the temperature detecting device is used for detecting the temperature at the preset position of the condenser, the temperature detecting device and the switch valve are electrically connected with the control main board, and the control main board is configured to: and controlling the on-off valve to be opened or closed according to the detection result of the temperature detection device.
In some embodiments, the clothes drying apparatus includes a bypass branch through which the water storage chamber and the condensation waterway are communicated; or the water storage cavity is positioned on the condensed water path, and water flow in the condensed water path flows through the water storage cavity; or the switch valve is provided with at least two water outlets, the water storage cavity is communicated with one water outlet, and the condensation waterway positioned at the downstream of the switch valve is communicated with the other water outlet.
In some embodiments, the steam generator has a steam output in communication with a circulation duct downstream of the condenser, the steam generated by the steam generator being directed into the laundry treatment chamber via the circulation duct.
The embodiment of the application also provides a control method of the clothes drying equipment of any embodiment, which comprises the following steps:
determining that the steam generator needs to be started;
controlling the switch valve to be opened so as to fill water into the water storage cavity;
starting a water supplementing pump to pump water in the water storage cavity into the steam generator;
the steam generator is turned on to supply the steam to the laundry treating chamber.
In some embodiments, before the step of turning on the steam generator to supply the steam to the laundry treating chamber, the control method further includes:
the water supplementing pump is started to pump the water in the water storage cavity into the steam generator.
In some embodiments, after the step of controlling the water make-up pump to pump water in the water storage chamber into the steam generator, the control method further comprises:
and when the water level in the steam generator reaches or exceeds a preset water level, controlling the water supplementing pump to be turned off.
In some embodiments, the step of controlling the opening of the on-off valve comprises: the switching valve is controlled to be opened for a first preset time, and then the switching valve is controlled to be closed, wherein the first preset time meets the following conditions: the volume of water entering the water storage cavity is larger than or equal to the volume of the water storage cavity.
In some embodiments, the control method further comprises:
acquiring the temperature at the preset position of the condenser;
and when the acquired temperature is greater than the preset temperature in the current working mode of the clothes drying equipment, controlling the switch valve to be opened so as to supply water to the condenser.
In some embodiments, when the current working mode of the clothes drying equipment is an air washing mode, the preset temperature is 43-47 ℃; and/or when the current working mode of the clothes drying equipment is a drying mode, the preset temperature is 48-52 ℃.
In some embodiments, when the current operation mode of the clothes drying apparatus is an air washing mode or a drying mode, the control method further includes: and controlling the drainage pump of the clothes drying equipment to be opened.
According to the clothes drying equipment provided by the embodiment of the application, the water storage part is arranged, water in the condensation waterway enters the steam generator after passing through the water storage cavity, and water is stably supplied to the steam generator through the water storage cavity, so that the adverse effect on the steam generator caused by unstable water flow in the water inlet waterway in the related technology can be eliminated by the water storage cavity, the water inlet stability of the steam generator can be improved, and the steam generator can stably generate steam. Furthermore, the water inlet source of the steam generator is from the condensation waterway, so that an independent water inlet source is not required to be arranged for the steam generator, and the water inlet source and the condensation waterway share one switch valve, so that one valve can be saved, the production and manufacturing cost is reduced, and the pipeline arrangement is also convenient.
Drawings
FIG. 1 is a simplified schematic diagram of a clothes drying apparatus according to an embodiment of the present application;
FIG. 2 is a flow chart of a control method of a clothes drying apparatus according to an embodiment of the application;
fig. 3 is a flow chart of a control method of a clothes drying apparatus according to another embodiment of the application.
Description of the reference numerals
A steam generator 11; a water inlet 11a; a steam outlet 11b; a water storage member 12; a water storage chamber 12a; a water supplementing pump 13; a switch valve 14; a barrel assembly 2; a laundry treatment chamber 2a; an inner cylinder 21; an outer tub 22; a condenser 31; a condensation waterway 32; a bypass branch 33; a circulation duct 41; a blower 42; heating element 43
Detailed Description
It should be noted that, in the case of no conflict, the embodiments of the present application and the technical features of the embodiments may be combined with each other, and the detailed description in the specific embodiments should be interpreted as an explanation of the gist of the present application and should not be construed as unduly limiting the present application.
The embodiment of the application provides clothes drying equipment, referring to fig. 1, which comprises a cylinder assembly 2, a steam generator 11, a circulating air duct 41, a condenser 31, a condensing waterway 32, a switch valve 14 and a water storage piece 12. The cartridge assembly 2 is provided with a laundry treatment chamber 2a for placing laundry, it being understood that the cartridge assembly 2 is also provided with a laundry input opening from which a user can take and place laundry. The laundry inlet may be provided at one side of the cylinder assembly 2 in the axial direction, or may be provided at a circumferential surface of the cylinder assembly 2, which is not limited herein.
The steam generator 11 is used to generate steam to be supplied to the laundry treating chamber 2a, that is, the steam generator 11 supplies steam to the laundry treating chamber 2a so as to perform sterilization, wrinkle removal, odor removal, etc. of laundry in the laundry treating chamber 2a. Specifically, the steam generator 11 has a heater, a steam outlet 11b, and a water inlet 11a, and when the heater heats water inside the steam generator 11, steam is discharged from the steam outlet 11b, and the steam generator 11 can be supplied with water from the water inlet 11 a.
The circulation duct 41 is communicated with the clothes treating chamber 2a, the condenser 31 is arranged on the circulation duct 41, and the condensing waterway 32 supplies water to the condenser 31, that is, the air flow flowing through the condenser 31 is cooled and dehumidified by adopting a water cooling mode in the embodiment of the application.
The heating member 43 and the fan 42 are disposed in the circulation duct 41, the heating member 43 is used for heating the air in the circulation duct 41, and the fan 42 is used for making the air in the circulation duct 41 flow directionally.
The switching valve 14 is disposed on the condensation waterway 32 to selectively turn on or off the condensation waterway 32; the water storage member 12 has a water storage chamber 12a communicating with the water inlet 11a, the water storage chamber 12a communicating with at least one water outlet of the on-off valve 14, or the water storage chamber 12a communicating with a condensation waterway 32 located downstream of the on-off valve 14 in the water flow direction.
The clothes drying process of the clothes drying equipment comprises the following steps: the dry hot air downstream of the circulation duct 41 enters the laundry treatment chamber 2a, flows over the surface of wet laundry, performs heat-moisture exchange with the wet laundry, absorbs moisture in the laundry, becomes wet hot air, and exits the laundry treatment chamber 2a and enters the upstream of the circulation duct 41, passes through the condenser 31, is cooled to low-temperature low-humidity air, is heated to dry hot air by the heating member 43, and enters the next cycle. The circulating operation realizes continuous and efficient drying of clothes.
According to the clothes drying equipment provided by the embodiment of the application, the water storage piece 12 is added, water in the condensation waterway 32 enters the steam generator 11 after passing through the water storage cavity 12a, and water is stably supplied to the steam generator 11 through the water storage cavity 12a, so that the adverse effect on the steam generator 11 caused by unstable water flow in the water inlet waterway in the related art can be eliminated by the water storage cavity 12a, the water inlet stability of the steam generator 11 can be improved, and the steam generator 11 can stably generate steam. Furthermore, the water inlet source of the steam generator 11 is from the condensation waterway 32, so that an independent water inlet source is not required to be arranged for the steam generator 11, and the water inlet source and the condensation waterway 32 share one switch valve 14, so that one valve can be saved, the production and manufacturing cost is reduced, and the pipeline arrangement is also convenient.
The steam quality of the steam generator 11 is related to the amount of water in the steam generator 11. The lower the water level in the steam generator 11, the higher the saturation of the steam generated by the steam generator 11, the better the steam quality, and the less heat is required to generate the same amount and saturation of steam, but at the same time the greater the likelihood of dry combustion of the steam generator 11. The higher the water level within the steam generator 11, the less prone the steam generator 11 will burn dry, but the lower the saturation of the steam and the more heat is required to produce the same amount and saturation of steam. Therefore, it is necessary to keep the water level in the steam generator 11 within a reasonable range in order to ensure that the saturation of the steam generated by the steam generator 11 is high and substantially uniform. Therefore, in the embodiment of the application, the water level in the steam generator 11 can be well kept in a reasonable range through the water storage cavity 12a, the fluctuation amplitude of the water level in the steam generator 11 is reduced, and the quality of steam generated by the steam generator 11 is stabilized.
The position of the air outlet of the circulation duct 41 for introducing the air flow into the drum assembly 2 is not limited as long as the hot dry air flow is allowed to enter the laundry treating chamber 2a. For example, in some embodiments, the air outlet of the circulation duct 41 is located higher at the top of the front side of the barrel assembly 2, and in other embodiments, the air outlet of the circulation duct 41 is located axially rearward of the barrel assembly 2.
In one embodiment, referring to fig. 1, the barrel assembly 2 includes an outer barrel 22 and an inner barrel 21 rotatably disposed within the outer barrel 22. The space inside the inner tub 21 is a laundry treating chamber 2a. Along the radial direction of the inner cylinder 21, a gap is formed between the inner cylinder 21 and the outer cylinder 22, and an air outlet of the circulating air duct 41 can be arranged on the outer cylinder 22 to guide the hot drying air flow into the gap between the inner cylinder 21 and the outer cylinder 22, and the hot drying air flows through holes on the inner cylinder 21 to enter the inner cylinder 21.
The water inlet 11a of the steam generator 11 and the water storage cavity 12a can be unconditionally communicated, and water in the water storage cavity 12a is automatically supplemented into the steam generator 11 by means of air pressure balance. Specifically, the water storage chamber 12a is in communication with the atmosphere, and when the water in the steam generator 11 is gradually consumed due to the generation of steam, the water level in the steam generator 11 gradually decreases, and since the liquid level in the steam generator 11 and the liquid level in the water storage chamber 12a are both in communication with the atmosphere, the water in the water storage chamber 12a automatically supplements into the steam generator 11, so that the liquid level in the steam generator 11 and the liquid level in the water storage chamber 12a are kept in balance.
In one embodiment, the laundry treating apparatus includes a water replenishment pump 13, the water replenishment pump 13 being configured to pump water in the water storage chamber 12a into the steam generator 11. In this embodiment, regardless of the relative height of the liquid level in the steam generator 11 and the liquid level in the water storage chamber 12a, the water can be supplied to the steam generator 11 by turning on the water supply pump 13 whenever the water is required to be supplied to the steam generator 11, so that the water is quantitatively supplied to the steam generator 11, and the steam quality of the steam generator 11 is well ensured.
In some embodiments, the water replenishment pump 13 is capable of unidirectionally flowing water in the water storage chamber 13a to the steam generator 11. That is, the water in the water storage chamber 13a can flow through the water replenishment pump 13 in the forward direction into the steam generator 11, and the water in the steam generator 11 cannot flow through the water replenishment pump 13 in the reverse direction. In this way, the heated water in the steam generator 11 can be prevented from flowing back into the water storage chamber 13a, on the one hand, heat loss can be avoided, and on the other hand, the manufacturing requirements of the water storage member 12 can be reduced, for example, the water storage member 12 does not need to have high temperature resistance and explosion resistance, and thus the water storage member 12 can be a common plastic product.
The specific type of the water replenishment pump 13 is not limited as long as it is small in size, convenient to install, and capable of pumping water. In an embodiment, the water supplementing pump is a peristaltic pump, and the peristaltic pump has the advantages of enabling fluid to only contact with the pump pipe, not contact with the pump body, being high in precision, stability and precision, good in self-absorption capacity, capable of idling, capable of preventing backflow and the like.
In one embodiment, the water level in the steam generator 11 is 1/4-1/2 of the theoretical maximum water level, so that the steam generator 11 can generate high-quality steam and can be prevented from dry burning. Specifically, when the water level in the steam generator 11 is lower than 1/4 of the theoretical maximum water level, water is replenished into the steam generator 11, the water level in the steam generator 11 rises, and when the water level rises to 1/2 of the theoretical maximum water level, water replenishment is stopped.
In the embodiment of the present application, the theoretical maximum water level refers to the maximum water level allowed by the design of the steam generator 11.
The specific structure of the steam generator 11 is not limited as long as it is capable of heating water to generate steam at the time of heating. That is, the steam generator 11 in the embodiment of the present application may be implemented by the technology existing in the prior art, and will not be described herein.
In an embodiment in which the water storage chamber 12a is located on the condensation waterway 32, and the water flow in the condensation waterway 32 flows through the water storage chamber 12a, that is, as long as the condensation waterway 32 supplies water to the condenser 31, the water storage chamber 12a is substantially filled with water all the time, the on-off valve 14 may use an original valve, for example, an original one-in-one-out structure, and has a water inlet and a water outlet.
In another embodiment, the clothes drying apparatus includes a bypass branch 33, and the water storage chamber 12a and the condensation waterway 32 are communicated by the bypass branch 33, in this embodiment, a part of water in the condensation waterway 32 is split into the water storage chamber 12a, and the water storage chamber 12a has no influence on the flow of the water in the water inlet waterway, so the shape and the volume of the water storage chamber 12a do not need to consider the flow problem of the condensation waterway 32, and thus, the design of the water storage chamber 12a is more flexible. In this embodiment, the on-off valve 14 may be an original valve, for example, an original one-in-one-out structure, that is, a water inlet and a water outlet.
In yet another embodiment, the on-off valve 14 has at least two water outlets, the water storage chamber 12a communicates with one of the water outlets, and the condensate water path 32 downstream of the on-off valve 14 communicates with the other water outlet. That is, in this embodiment, the on-off valve 14 is at least one-in-two-out structure, i.e., has at least one water inlet and two water outlets.
In some embodiments, the steam generated by the steam generator 11 may be independently directed into the laundry treating chamber 2a through a separate pipe, that is, a pipe is connected to the steam generator 11 at the steam outlet 11b, so that the steam is directed into the tub assembly 2.
In another embodiment, with continued reference to fig. 1, the steam output 11b is in communication with the circulation duct 41 downstream of the condenser 31, and the steam generated by the steam generator 11 is introduced into the laundry treating chamber 2a through the circulation duct 41, specifically, the steam output 11b is located downstream of the heating member 43 in the airflow direction. The air flow formed by the fan 42 in the circulating air duct 41 can quickly and effectively blow the steam into the clothes treatment cavity 2a, so that the steam can quickly fill the clothes treatment cavity 2a, and the efficiency of the treatments such as wrinkle removal, odor removal, auxiliary drying and the like is improved.
In addition, the heating member 43 in the circulation duct 41 may reheat the steam introduced into the circulation duct 41 to form superheated steam, which is introduced into the laundry treating chamber 2a. When the steam introduced into the clothes treatment cavity 2a is superheated steam, on the one hand, when the clothes are dried by the superheated steam, the problems of wrinkling, deformation and the like are not easy to occur due to the fact that the surface of the clothes is wet and the drying stress is small, and moreover, the superheated steam drying is free of oxidation reaction, so that the clothes are not discolored, and the drying quality of the clothes is improved; on the other hand, the specific heat and the heat transfer coefficient of the superheated steam are larger than those of air, and meanwhile, the mass transfer resistance of the superheated steam in a drying medium is negligible, so that the migration speed of moisture is high, and the time for drying clothes can be obviously reduced; in yet another aspect, the superheated steam is capable of destroying bacteria and other toxic microorganisms on the garment to achieve a sterilizing effect.
It should be noted that the rated power of the clothes drying apparatus is limited, and the power of the whole machine is generally about 200W (watts). In the embodiment of the application, the heating element 43 in the circulating air duct 41 is fully utilized to secondarily heat the steam, so that the power of the clothes drying equipment is not additionally increased. Accordingly, the clothes drying apparatus of the embodiment of the present application can maintain the synchronous operation of the blower 42, the heating member 43 and the steam generator 11 without exceeding the rated power when using the superheated steam. That is, when the blower 42 blows and the heating member 43 is in a heating state, a large amount of superheated steam can be supplied into the laundry treating chamber 2a, and the apparatus can be used for a self-cleaning process of a drum of a laundry drying apparatus, a drying process of laundry, and the like, and the heat quantity in the circulation duct 41 is high, and the heat loss of the steam flowing in the circulation duct 41 is small.
The superheated steam is steam obtained by continuously heating dry saturated steam so that the temperature of the steam is continuously increased.
In one embodiment, the superheated steam has a temperature of 110 ℃ to 140 ℃, such as 110 ℃, 120 ℃, 130 ℃, 140 ℃, and the like. In order to achieve a better sterilization effect, in one embodiment, the temperature of the superheated steam is 120-130 ℃, and the temperature range can play a better sterilization role and avoid excessive energy consumption.
The specific configuration of the heating element 43 is not limited, and may be a resistance wire heater, a PTC (Positive Temperature Coefficient ) heater, or the like, and is not limited thereto.
When the heating element 43 is in the heating state, the blower 42 needs to be in the blowing state to prevent the heating element 43 from being burned dry. When the heating member 43 is not heated, the blower 42 may or may not blow.
The type of the water replenishment pump 13 is not limited as long as the structure is small and exquisite and water can be pumped. Illustratively, in one embodiment, the supplemental pump 13 is a peristaltic pump. The peristaltic pump has higher repetition precision and stability precision, can also prevent backflow, and can effectively prevent hot water in the steam generator 11 from flowing back into the water storage cavity 12 a.
In one embodiment, the water storage member 12 is further provided with an overflow port through which excess water can overflow when the water level in the water storage chamber 12a reaches the level of the overflow port. The water flow overflowing from the overflow port may be guided to the condenser 31, the laundry treating chamber 2a, the drain pipe, etc., without limitation.
In some embodiments, the clothes drying device comprises a control main board and a water level detection device electrically connected with the control main board, wherein the water level detection device is used for detecting the water level in the steam generator 11 and sending detected water level information to the control main board, and the main control main board controls the water supplementing pump 13 to be turned on or turned off according to the water level information. Therefore, the water level in the steam generator 11 can be controlled in a reasonable range, so that the steam generated by the steam generator 11 has better quality and can prevent the steam generator 11 from being burned dry.
The water level detection means is not limited to a specific implementation means, and for example, a detection method such as a pressure method, a buoyancy method, an electrical method, a thermal method, etc. may be used.
Illustratively, in one embodiment, the water level detection means comprises one or more water level probes extending into the steam generator 11 from the top of the steam generator 11. When the water level in the steam generator 11 reaches the bottom end of the water level probe, the end of the water level probe contacts with water, and the water level probe sends a water level signal, which indicates that the water level in the steam generator 11 reaches the preset water level at this time, and the control main board closes the hydraulic water supplementing piece according to the water level signal to stop supplementing water to the steam generator 11.
The water level probe has a simple structure and occupies a small space, and is therefore suitable for a small installation space in the steam generator 11.
In one embodiment, the clothes drying apparatus includes a control main board and a temperature detecting device. The temperature detecting device is used for detecting the temperature of the condenser 31 at the preset position, the temperature detecting device and the switch valve 14 are electrically connected with a control main board, and the control main board is configured to: the on-off valve 14 is controlled to be opened or closed according to the detection result of the temperature detection means.
Specifically, the temperature detecting device sends the detection result to the control main board, the control main board calculates the current temperature of the condenser 31 according to the detection result, when the temperature is low, the cooling water is not required to be supplied to the condenser 31, the switch valve 14 can be in a closed state, and the condensation waterway 32 is cut off. When the temperature is high, it is necessary to supply cooling water to the condenser 31, control the main board control switching valve 14 to be opened, and the condensation water path 32 is conducted to supply water to the condenser 31.
The preset position of the condenser 31 is not limited as long as the present temperature of the condenser 31 can be directly or indirectly reacted, for example, the surface of the condenser 31, the air outlet of the condenser 31, and the like. It will be appreciated that when the preset positions are different, there is a certain temperature difference between the detected temperature at the preset position and the actual temperature of the condenser 31, and when the preset position is determined, the temperature difference is basically determined, and the current temperature of the condenser 31 can be obtained by adding the temperature difference to the detected temperature.
The specific type of the temperature detecting device is not limited, and may be either contact type or non-contact type. Such as thermal resistors, thermistors, thermocouples, integrated temperature sensors, and the like.
In one embodiment, at least part of the main program of the clothes drying equipment is embedded with a subprogram of a steam mode, wherein the main program comprises the procedures of washing, drying, barrel self-cleaning, dehydration and the like. That is, when a user selects a certain main program, the system automatically executes the steam mode execution program embedded in the main program without the user's own separate selection. The steam mode is a mode in which the steam generator 11 needs to be turned on.
The laundry drying appliance may be a drum-type laundry drying appliance, i.e. the axis of rotation of the drum assembly 2 is substantially in a horizontal direction; the clothes drying apparatus may also be pulsator type, i.e., the rotation axis of the drum assembly 2 is substantially in the vertical direction, without limitation.
The specific type of the clothes drying device according to the embodiment of the application is not limited, and for example, the clothes drying device can be pulsator type clothes drying device, and drum type clothes drying device, such as drum type washing and drying integrated machine, drum type clothes dryer and the like.
It should be noted that, the cylinder assembly 2 may be a perforated cylinder assembly 2 or a non-perforated cylinder assembly 2. When the barrel assembly 2 is a perforated barrel assembly 2, the clothes drying device is provided with an outer barrel, and the barrel assembly 2 is rotatably arranged in the outer barrel and is used for containing water by virtue of the outer barrel. When the drum assembly 2 is a non-porous drum assembly 2, the drum assembly 2 is used for containing water, that is, the drum assembly 2 can contain water and clothes, and in this embodiment, the clothes drying device may or may not be provided with an outer drum.
The embodiment of the application also provides a control method of the clothes drying equipment, referring to fig. 2, the control method comprises the following steps.
S1, determining that the steam generator 11 needs to be started.
The specific implementation of determining that the steam generator 11 needs to be turned on is not limited, and may be determined according to a selection instruction input by a user, for example, and further, when a subroutine of a steam mode is embedded in a main program, and when a user selects one of the main programs, the steam generator 11 may be automatically determined to need to be turned on.
S2. the on-off valve 14 is controlled to be opened to fill water into the water storage chamber 12 a.
When the on-off valve 14 is opened, water can be supplied not only to the water storage chamber 12a but also to the condenser 31. That is, after it is determined that the steam generator 11 needs to be turned on, the on-off valve 14 is opened to automatically feed water regardless of the water level in the water storage chamber 12a, regardless of whether or not water is present in the water storage chamber 12a, so that water can be ensured to be fed into the water storage chamber 12a, and water shortage in the water storage chamber 12a due to failure of the water level gauge in the water storage chamber 12a can be avoided.
S3. turn on the steam generator 11 to supply the steam to the laundry treating chamber 2a.
In some embodiments, referring to fig. 3, before step S3, the control method further includes:
s21: the water replenishment pump 13 is activated to pump water in the water storage chamber 12a into the steam generator 11.
That is, no matter whether water is present in the steam generator 11 or not, the drain pump is turned on to pump water into the steam generator 11 no matter how high the water level in the steam generator 11 is, so that the water can be pumped into the steam generator 11, and dry burning of the steam generator 11 due to failure of the water level detection device in the steam generator 11 can be avoided. Furthermore, the water inflow of the steam generator 11 can be better controlled by the water replenishment pump 13, and is not limited by the installation position of the water storage chamber 12 a.
In some embodiments, after step S3, the control method further includes:
when the water level in the steam generator 11 reaches or exceeds a preset water level, the water supplementing pump 13 is controlled to be turned off. Specifically, before step S3, even if the water level in the steam generator 11 reaches or exceeds the preset water level, the water replenishment pump 13 is still turned on, after the water replenishment pump 13 is turned on, the on time of the water replenishment pump 13 is determined according to the water level in the steam generator 11, if the water level reaches the preset water level, the water replenishment pump 13 is turned off, and if the water level does not reach the preset water level, the water replenishment pump 13 is continuously turned on until the water level reaches the preset water level.
In some embodiments, step S2 specifically includes: the on-off valve 14 is controlled to be opened for a first preset time, and then the on-off valve 14 is controlled to be closed, wherein the first preset time is as follows: the volume of water entering the water storage chamber 12a is greater than or equal to the volume of the water storage chamber 12 a. In this way, the water storage chamber 12a can be ensured to be filled with water. It should be noted that if the excessive water entering the water storage chamber 12a may overflow from the overflow port of the water storage chamber 12 a.
In some embodiments, the control method further comprises:
acquiring the temperature at a preset position of the condenser 31;
when the obtained temperature is greater than the preset temperature in the current operation mode of the laundry drying apparatus, the on-off valve 14 is controlled to be opened to supply water to the condenser 31.
It should be noted that, in different operation modes, the preset temperatures are different. When the temperature exceeds the preset temperature, the switch valve 14 should be opened in time to cool the condenser 31 in time, so as to prevent the condenser 31 from overheating.
In some embodiments, when the current working mode of the clothes drying apparatus is an air washing mode, the preset temperature is 43 ℃ to 47 ℃. In the air washing mode, less moisture is present in the laundry treating chamber 2a, and the amount of heat required for strong laundry treatment is not high, and thus, the preset temperature of the condenser 31 is also relatively low. When the temperature exceeds the range of 48-52 ℃, the switch valve 14 should be opened in time to supply water to the condenser 31, and the temperature of the condenser 31 should be reduced in time.
In some embodiments, when the current working mode of the clothes drying device is a drying mode, the preset temperature is 48 ℃ to 52 ℃. In the drying mode, the temperature required in the laundry treating chamber 2a is relatively high, and the moisture in the laundry treating chamber 2a is heavy, and thus, the preset temperature of the condenser 31 is also high. When the temperature exceeds the range of 48-52 ℃, the switch valve 14 should be opened in time to supply water to the condenser 31.
In some embodiments, when the current operation mode of the clothes drying apparatus is an air washing mode or a drying mode, the control method further includes: and controlling the drainage pump of the clothes drying equipment to be opened. In the air washing mode and the drying mode, the laundry treating chamber 2a needs to maintain a drier environment, avoiding water inflow. Therefore, in this mode, it is necessary to start the drain pump in time, and drain the condensed water flowing through the condenser 31 out of the clothes drying apparatus in time, preventing the water level from rising and thus spreading into the clothes treating chamber 2a.
It should be noted that, the opening time of the drain pump may be started simultaneously with the opening/closing valve 14, or may be started after the opening/closing valve 14 is opened for a period of time, which is not limited herein.
The various embodiments/implementations provided by the application may be combined with one another without contradiction.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (12)
1. A clothes drying apparatus, comprising:
a cartridge assembly (2), the cartridge assembly (2) having a laundry treatment chamber (2 a);
a circulation duct (41) communicating with the laundry treatment chamber (2 a);
a condenser (31) provided on the circulation duct (41);
a condensation waterway (32), the condensation waterway (32) supplying water to the condenser (31);
a switching valve (14), the switching valve (14) being disposed on the condensation waterway (32) to selectively turn on or off the condensation waterway (32);
a steam generator (11), the steam generator (11) being for generating steam for supply to the laundry treatment chamber (2 a), the steam generator (11) having a water inlet (11 a);
-a water storage (12), said water storage (12) having a water storage chamber (12 a) in communication with said water inlet (11 a), said water storage chamber (12 a) being in communication with at least one water outlet of said on-off valve (14), or said water storage chamber (12 a) being in communication with said condensation waterway (32) downstream of said on-off valve (14).
2. Laundry drying apparatus according to claim 1, characterized in that the laundry drying apparatus comprises a water replenishment pump (13), the water replenishment pump (13) being adapted to pump water in the water storage chamber (12 a) into the steam generator (11).
3. Laundry drying apparatus according to claim 1, characterized in that it comprises a control main board and temperature detection means for detecting the temperature at a preset position of the condenser (31), both of which are electrically connected to the control main board, the control main board being configured to: the on-off valve (14) is controlled to be opened or closed according to the detection result of the temperature detection device.
4. Laundry drying apparatus according to claim 1, characterized in that it comprises a bypass branch (33), said water storage chamber (12 a) and said condensation waterway (32) being in communication through said bypass branch (33); alternatively, the water storage cavity (12 a) is positioned on the condensation waterway (32), and the water flow in the condensation waterway (32) flows through the water storage cavity (12 a); alternatively, the on-off valve (14) has at least two water outlets, the water storage chamber (12 a) is communicated with one of the water outlets, and the condensation waterway (32) positioned downstream of the on-off valve (14) is communicated with the other water outlet.
5. Laundry drying apparatus according to claim 1, characterized in that the steam generator (11) has a steam outlet (11 b), the steam outlet (11 b) being in communication with a circulation duct (41) downstream of the condenser (31), the steam generated by the steam generator (11) being led into the laundry treatment chamber (2 a) via the circulation duct (41).
6. A control method of a clothes drying apparatus according to claim 1, comprising the steps of:
determining that the steam generator (11) needs to be turned on;
controlling the switch valve (14) to be opened so as to fill water into the water storage cavity (12 a);
-turning on the steam generator (11) to supply steam to the laundry treatment chamber (2 a).
7. A control method according to claim 6, characterized in that, before said step of turning on the steam generator (11) to supply steam to the laundry treatment chamber (2 a), the control method further comprises:
the water supplementing pump (13) is started to pump the water in the water storage cavity (12 a) into the steam generator (11).
8. The control method according to claim 7, characterized in that, after the step of activating the water replenishment pump (13) to pump the water in the water storage chamber (12 a) into the steam generator (11), the control method further comprises:
and when the water level in the steam generator (11) reaches or exceeds a preset water level, the water supplementing pump (13) is controlled to be turned off.
9. The control method according to claim 6, characterized in that the step of controlling the opening of the on-off valve (14) includes: the switching valve (14) is controlled to be opened for a first preset time, and then the switching valve is started to be closed, wherein the first preset time meets the following conditions: the volume of water entering the water storage cavity (12 a) is greater than or equal to the volume of the water storage cavity (12 a).
10. The control method according to claim 6, characterized in that the control method further comprises:
acquiring a temperature at a preset position of the condenser (31);
when the acquired temperature is higher than the preset temperature in the current working mode of the clothes drying equipment, the switch valve (14) is controlled to be opened so as to supply water to the condenser (31).
11. The control method according to claim 10, wherein when the current operation mode of the clothes drying apparatus is an air washing mode, the preset temperature is 43 ℃ to 47 ℃; and/or when the current working mode of the clothes drying equipment is a drying mode, the preset temperature is 48-52 ℃.
12. The control method according to claim 6, wherein when the current operation mode of the clothes drying apparatus is an air washing mode or a drying mode, the control method further comprises: and controlling the drainage pump of the clothes drying equipment to be opened.
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| CN202011186725.6A CN114427162B (en) | 2020-10-29 | 2020-10-29 | Clothes drying equipment and control method thereof |
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| CN202011186725.6A CN114427162B (en) | 2020-10-29 | 2020-10-29 | Clothes drying equipment and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102277714A (en) * | 2010-05-25 | 2011-12-14 | 伊莱克斯家用产品股份有限公司 | Laundry treatment apparatus having heat pump system |
| CN106149329A (en) * | 2015-03-25 | 2016-11-23 | 青岛海尔洗衣机有限公司 | Dryer condensation water collection vaporising device, dryer and control method thereof |
| CN106917253A (en) * | 2015-12-25 | 2017-07-04 | 无锡小天鹅股份有限公司 | Dryer |
| CN107841859A (en) * | 2016-09-21 | 2018-03-27 | 青岛海尔滚筒洗衣机有限公司 | Dryer with steam nursing function |
| CN110373879A (en) * | 2018-04-12 | 2019-10-25 | 青岛海尔滚筒洗衣机有限公司 | A kind of clothes treatment device |
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2020
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277714A (en) * | 2010-05-25 | 2011-12-14 | 伊莱克斯家用产品股份有限公司 | Laundry treatment apparatus having heat pump system |
| CN106149329A (en) * | 2015-03-25 | 2016-11-23 | 青岛海尔洗衣机有限公司 | Dryer condensation water collection vaporising device, dryer and control method thereof |
| CN106917253A (en) * | 2015-12-25 | 2017-07-04 | 无锡小天鹅股份有限公司 | Dryer |
| CN107841859A (en) * | 2016-09-21 | 2018-03-27 | 青岛海尔滚筒洗衣机有限公司 | Dryer with steam nursing function |
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