CN110820285B - Clothes dryer comprising a condensation device - Google Patents
Clothes dryer comprising a condensation device Download PDFInfo
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- CN110820285B CN110820285B CN201810809934.8A CN201810809934A CN110820285B CN 110820285 B CN110820285 B CN 110820285B CN 201810809934 A CN201810809934 A CN 201810809934A CN 110820285 B CN110820285 B CN 110820285B
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- control mode
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- cooling water
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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
- D06F58/20—General details of domestic laundry dryers
- D06F58/24—Condensing arrangements
Abstract
A clothes dryer comprising a condensing device, which comprises a drying chamber, wherein the condensing device is associated with the drying chamber, the condensing device comprises a cooling water channel, the downstream of the cooling water channel is provided with two branch channels, a drain valve is arranged on the first branch channel, a water pump is arranged on the second branch channel, the other end of the second branch channel is connected to the upstream of the cooling water channel, so that a circulation loop is formed by the second branch channel and the cooling device for cooling the water in the second branch channel acts on the second branch channel. The clothes dryer with the condensing device not only can obtain the condensing efficiency of the traditional water cooling type condensing device, but also has a selectable water-saving circulating condensing loop.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to a laundry dryer comprising a drying chamber, with condensation means associated with the drying chamber, wherein the condensation means comprise cooling water channels.
[ background of the invention ]
Dryers typically include machines with pure dryer functionality as well as machines that integrate washing and drying functions. The drying principle of the dryer can be roughly summarized as follows: under the action of the heating device, dry air is heated by the heating device to form dry hot air, then the dry hot air enters the drying barrel to exchange heat with wet clothes, moisture in the clothes is taken away to form relatively wet hot air, the wet hot air then passes through the condensation action of the condensation device, the moisture in the wet hot air is condensed into water and then is discharged through the drain pipe, the condensed air becomes relatively dry cold air and is guided into the heating device again under the action of the fan, the dry hot air formed by heating enters the next cycle, and the process is repeated until the drying process is finished.
The condensing means may include a cooling water supply means. The cooling water meets the moist hot air to lower the temperature of the hot air, thereby separating the moisture therein.
However, one disadvantage of such a condensation device is that during the long drying process, a large amount of cooling water is consumed, which is not acceptable especially in regions with relatively low water resources.
[ summary of the invention ]
An object of the present invention is to allow a dryer to achieve drying with less water.
In view of the above, the present invention provides a clothes dryer comprising a condensing device, which is associated with a drying chamber, wherein the condensing device comprises a cooling water channel, and two branch channels are arranged at the downstream of the cooling water channel, wherein a drain valve is arranged on the first branch channel, a water pump is arranged on the second branch channel, and the other end of the second branch channel is connected to the upstream of the cooling water channel, so as to form a circulation loop with the cooling water channel, and a cooling device for cooling water in the second branch channel acts on the second branch channel.
Wherein, the condensing device is associated with the drying chamber, and the condensing device is spatially associated with the drying chamber, so that heat exchange can be carried out with the drying air generated by the drying chamber. In particular, it may be embodied that the condensing means is located at least partially within the drying chamber, or at least partially within a passage communicating with the drying chamber space.
The condensing device not only keeps the traditional first branch channel for direct drainage, but also adds the optional second branch channel to form a circulating loop with the cooling water channel, and meanwhile, the cooling device is arranged on the second branch channel, so that the cooling water can be recycled. The clothes dryer with the condensing device not only can obtain the condensing efficiency of the traditional water cooling type condensing device, but also has a selectable water-saving circulating condensing loop, so that the effect of saving water can be achieved, and the clothes dryer is more user-friendly and gives more choices to users.
Preferably, the cooling water passage is internally isolated with respect to the drying chamber, and the cooling water passage is made of a heat conductive material. That is, the cooling water passage is closed, and the cooling water does not directly contact the drying air in the drying chamber or the drying air from the drying chamber, but is heat-exchanged with the drying air through the heat conductive passage wall.
Preferably, the condensing means comprises a first heat-conducting plate made of a heat-conducting material, the cooling water channel being in heat-conducting combination with the first heat-conducting plate.
Wherein the second branch channel is made of heat conducting material, and the cooling device may comprise a fan with an air outlet direction opposite to the second branch channel. The fan drives the air with lower temperature to flow and exchange heat with the water in the second branch channel to take away part of heat in the air, so that the water in the second branch channel can participate in the condensation of the drying air again.
The second branch channel is in thermally conductive engagement with a second thermally conductive plate made of a thermally conductive material.
The part of the second branch channel close to the second fan is distributed in a curved folding or coiling way. The structure can make the second branch channel have larger area cooled by the fan, and improve the heat exchange efficiency.
And a water inlet valve is arranged at the upstream of the cooling water channel. The supply of cooling water is controlled by a water inlet valve.
The clothes dryer further comprises a control device which is set to comprise a direct-discharging condensation control mode and a circulating condensation control mode and adopts one condensation control mode or a combination of the two condensation control modes to control the drain valve and the water pump in the selected drying program, wherein in the direct-discharging condensation control mode, the drain valve is opened; in the circulation condensation control mode, the drain valve is closed, and the water pump and the cooling device are opened. Through the control of the control device, the clothes dryer can be switched or selected between a direct-discharging condensation control mode with higher condensation efficiency and larger water consumption and a circulating condensation control mode with slightly lower condensation efficiency and greatly reduced water consumption, so that the clothes dryer can meet more use requirements and can also achieve the purpose of saving water resources.
The dryer includes a detection means associated with the drying chamber, and the control means switches from the in-line condensation control mode to the circulation condensation control mode according to a detection result of the detection means. Wherein the detection means are associated with the drying chamber means that the detection means are spatially associated with the drying chamber such that air located in or from the drying chamber can be detected. It may be embodied that the detecting means is located in the drying chamber, and it is also possible that the detecting means is located in a channel in spatial communication with the drying chamber.
At the initial stage of the drying program operation, the clothes have higher water content, the condensing efficiency is higher by adopting the direct-exhaust condensing control mode, and partial water in the clothes can be dried more quickly. At the later stage of the drying program, the water content of the clothes is lower, even if a direct-discharge condensation control mode is adopted, the drying efficiency is greatly reduced, and at the moment, a circulating condensation control mode is adopted, so that the water can be saved.
The detection device detects a temperature value or a humidity value of air associated with the drying chamber. Because the temperature value and the humidity value of the air associated with the drying chamber can change in the early stage and the later stage of the drying program, whether the condensation control mode is suitable to be switched can be reasonably judged by detecting any parameter value.
And after entering a circulating condensation control mode, closing the water inlet valve.
The control means is configured to select either the in-line condensing control mode or the circulating condensing control mode according to the amount of laundry to be dried, and to select the circulating condensing control mode when the amount of laundry to be dried is less than a preset amount.
The control means includes a water-saving drying mode selectable by a user, and when the water-saving drying mode is selected, the control means adopts a circulation condensation control mode.
The control means is configured such that the water-saving drying mode can be selected when the amount of laundry to be dried is less than a preset amount.
The invention will be further described with reference to the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic view of a tub and condensing unit of a clothes dryer;
FIG. 2 is a schematic diagram of the structure of the condensing unit;
fig. 3 is a diagram showing a connection relationship between the control device and each electrical component.
[ detailed description ] embodiments
As shown in fig. 1, the dryer 1 has an outer tub 2 constituting a drying chamber for laundry and an inner tub 4 located inside the outer tub 2. The outer barrel 2 is spatially communicated with two ends of an air circulation channel 6 respectively. The air flow channel 6 is provided with a first fan 7 for causing air to flow in the channel and with heating means 8 for heating the air flowing through the channel. The cooling water passage 11 of the condensing device 10 is located in the air circulation passage 6, and condenses the air from the tub 2 flowing through the air circulation passage 6.
In other embodiments, not shown in the drawings, the cooling water channel 11 may also be located directly in the tub 2, condensing the air located inside the tub 2.
Wherein the cooling water passage 11 is implemented as a pipe whose passage interior is isolated with respect to the tub 2, and is made of a heat conductive material. Preferably made of a metal having good thermal conductivity. The cooling water in the cooling water passage 11 is heat-exchanged with the high-temperature and high-humidity drying air from the tub 2 through the wall of the cooling water passage 11 as a medium, so that the moisture in the drying air is condensed into liquid to be separated from the air.
In order to improve the heat exchange performance of the cooling water channel 11, as in the embodiment shown in fig. 1 and 2, the condensing device 10 comprises a first heat conducting plate 12 made of a heat conducting material. The cooling water channel 11 is thermally conductively coupled to the first heat-conducting plate 12. First heat-conducting plate 12 increases the heat-conducting area, thereby improving the heat exchange efficiency. The heat conduction combination may include welding the two components together, or the cooling water channel 11 may pass through the inside of the first heat conduction plate 12, or the cooling water channel 11 may be integrally formed in the first heat conduction plate 12.
As shown in fig. 2, the cooling water passage 11 has two branch passages downstream, wherein the first branch passage 13 is provided with a drain valve 14, the second branch passage 15 is provided with a water pump 16, and the other end of the second branch passage 15 is connected to the upstream of the cooling water passage 11 so as to constitute a circulation loop with the cooling water passage 11.
The second fan 17 is disposed near the second branch passage 15, and the air outlet direction faces the second branch passage 15, so as to cool the water in the second branch passage 15. The second branch channel 15 may be made of a material with superior thermal conductivity, such as metal.
Likewise, in order to accelerate the cooling of the water in the second branch channel 15, the second branch channel 15 is thermally coupled with a second heat-conducting plate 18 made of a thermally conductive material. And, in order to increase the cooled area, the portion of the second branch path 15 near the second fan 17 is distributed in a curved folded or coiled shape. The heat-conducting combination may include the second branch channel 15 and the second heat-conducting plate 18 being welded to each other, or the second branch channel 15 passing through the inside of the second heat-conducting plate 18, or the second branch channel 15 being integrally formed in the second heat-conducting plate 18.
An inlet valve 19 is provided upstream of the cooling water passage 11. The supply of cooling water is controlled by a water inlet valve 19.
The dryer 1 also comprises control means 20. The control device 20 includes several drying programs. The drying program has program parameters that can be selected or changed by the user. The control device 20 controls the above electrical components according to the preset drying program and the setting of the user, as shown in fig. 3.
The control device 20 is configured to include an in-line condensing control mode and a circulating condensing control mode, and controls the drain valve 14 and the water pump 16 in one of the condensing control modes or in a combination of the condensing control modes in the selected drying course.
In the direct-discharge condensation control mode, the water inlet valve 19 is continuously or intermittently opened according to the program setting, and the water discharge valve 14 is kept opened. Then, the cooling water having a lower temperature enters the cooling water passage 11 from the inlet valve 19 and is heat-exchanged with the hot and humid drying air in the air circulation passage 6, and then the cooling water having an increased temperature passes through the drain valve 14 and is discharged through the first branch passage 13. The heat exchange efficiency of the drying air in the direct exhaust condensing control mode is high due to the low temperature of the water from the external public water source, but more water resources are consumed.
In the cyclic condensation control mode, the water inlet valve 19 is opened, the water discharge valve 14 is closed, and the water pump 16 is opened. The feed valve 19 is opened for a certain period of time to ensure that the cooling water passage 11 and the second branch passage 15 are closed after being filled with water, respectively. At this time, water circulates in a loop formed by the cooling water passage 11 and the second branch passage 15. At the same time or later, the second fan 17 is turned on to cool the water in the second branch passage 15. Only after the condensation phase has ended is the water discharge valve 4 opened, so that water is discharged from the first branch channel 13.
In the circulation condensation control mode, the water having an increased temperature after heat exchange with the drying air in the cooling water passage 11 enters the second branch passage 15 by the water pump 16, and is cooled in the second branch passage 15 by the second fan 17. The cooled water enters the cooling water channel 11 again to dry the clothes. The cooling water is recycled, so that the consumption of water resources can be greatly reduced, but the water temperature is higher than that of a public water source, and therefore, the heat exchange efficiency of the clothes drying is low.
In the initial stage of a general drying process, the laundry has a high water content and the humidity of the drying air is high. At this time, the direct-exhaust condensing control mode can be adopted to improve the drying efficiency. At the later stage of the drying process, the moisture content of the clothes is low, and the humidity of the drying air is low. The cyclic condensation control mode with lower heat exchange efficiency can be adopted to save water resources.
The laundry dryer 1 generally comprises detection means 22 associated with the tub 2. For example, as shown in fig. 1, the detection device 22 is provided in the air flow channel 6. The detection means 22 may comprise a temperature sensor and/or a humidity sensor so as to detect a temperature value or a humidity value of the air associated with the drying chamber. The detection result of the detecting means 22 may reflect the proceeding state of the drying process. The control means 20 may switch from the in-line condensation control mode to the circulation condensation control mode in accordance with the detection result of the detection means 22. For example, the control device 20 presets a temperature or humidity reference value, and automatically switches from the in-line condensation control mode to the circulation condensation control mode when the variation value detected by the detection device 22 crosses the temperature or humidity reference value.
The above-described control method including both the in-line condensation control mode and the circulation condensation control mode in one drying course may be preset by a program or may occur only in case that the option of the water-saving drying mode is selected by a user.
The control means 20 is provided to select the in-line condensing control mode or the circulation condensing control mode according to the amount of laundry to be dried.
When the user selects the water-saving drying mode, the control device 20 automatically selects the circulation condensing control mode if the amount of the laundry to be dried is less than the preset amount.
In another embodiment, when there is no water-saving drying mode selectable by the user, the control device 20 may also automatically select the circulation condensation control mode directly according to the amount of the dried laundry.
In another embodiment, when the water-saving drying mode is selected, the control device 20 adopts the circulation condensation control mode throughout the drying course without judging the amount of the laundry. This drying mode may require a long operation time.
In still another embodiment, the control means 20 is configured to previously judge the amount of laundry to be dried, and the water-saving drying mode may be selected only when the amount of laundry to be dried is less than a preset amount. Therefore, the problem that too long drying time is needed, or complete drying cannot be achieved under the condition that too many clothes are needed, or the drying efficiency is low can be avoided.
The various embodiments described above and shown in the drawings are illustrative of the invention and are not exhaustive of the invention. Any modification of the present invention by a person of ordinary skill in the related art within the scope of the basic technical idea of the present invention is within the scope of the present invention.
Claims (8)
1. A laundry dryer comprising condensation means, comprising a drying chamber (2) with which condensation means (10) are associated, wherein the condensation means comprise cooling water channels (11), characterized in that: the downstream of the cooling water passage has two branch passages, wherein there are drain valves (14) on the first branch passage (13), there are water pumps (16) on the second branch passage (15), and the other end of the second branch passage is connected to the upstream of the cooling water passage, thus form the circulation circuit with the cooling water passage, the cooling device (17) to cool water in the second branch passage acts on the second branch passage, the inside of said cooling water passage and inside of said second branch passage are isolated with respect to said drying chamber separately, the said clothes dryer includes the controlling device (20), the controlling device is set up to include the direct vent condensation control mode and circulate the condensation control mode, in the direct vent condensation control mode, the drain valve is opened; in the circulating condensation control mode, the drain valve is closed, and the water pump and the cooling device are opened; the control device is configured to:
selecting an in-line condensing control mode or a circulating condensing control mode according to the amount of the laundry to be dried, and selecting the circulating condensing control mode when the amount of the laundry to be dried is less than a preset amount; or
The control device comprises a water-saving drying mode which can be selected by a user, and after the water-saving drying mode is selected, if the quantity of the clothes to be dried is less than the preset quantity, the control device adopts a circulating condensation control mode; or
The clothes dryer includes a detection means (22) associated with the drying chamber, the detection means detecting a temperature value or a humidity value of air associated with the drying chamber, a detection result of the detection means reflecting a proceeding state of a drying process, and a control means switching from the in-line condensation control mode to the circulation condensation control mode according to the detection result of the detection means.
2. The clothes dryer of claim 1, wherein: the cooling water channel is made of a heat conductive material.
3. The clothes dryer of claim 2, wherein: the condensation device comprises a first heat-conducting plate (12) made of a heat-conducting material, with which the cooling water channel is in heat-conducting combination.
4. The clothes dryer of claim 1, wherein: the second branch channel is made of heat conducting material, and the cooling device comprises a second fan (17) with the air outlet direction opposite to the second branch channel.
5. The clothes dryer of claim 4, wherein: the second branch channel is thermally conductively coupled to a second thermally conductive plate (18) made of a thermally conductive material.
6. The clothes dryer of claim 4, wherein: the part of the second branch channel close to the second fan is distributed in a curved folding or coiling way.
7. The clothes dryer of claim 1, wherein: an inlet valve (19) is arranged at the upstream of the cooling water channel.
8. The clothes dryer of claim 1, wherein: and after entering a circulating condensation control mode, closing the water inlet valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810809934.8A CN110820285B (en) | 2018-07-23 | 2018-07-23 | Clothes dryer comprising a condensation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810809934.8A CN110820285B (en) | 2018-07-23 | 2018-07-23 | Clothes dryer comprising a condensation device |
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| CN110820285A CN110820285A (en) | 2020-02-21 |
| CN110820285B true CN110820285B (en) | 2022-11-15 |
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| CN201810809934.8A Active CN110820285B (en) | 2018-07-23 | 2018-07-23 | Clothes dryer comprising a condensation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111455608B (en) * | 2020-04-08 | 2022-07-05 | 珠海格力精密模具有限公司 | Washing machine, washing control method and device and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100898930B1 (en) * | 2007-09-04 | 2009-05-26 | 엘지전자 주식회사 | Temperature and humidity controlling apparatus of dryer |
| CN203247438U (en) * | 2012-12-21 | 2013-10-23 | 无锡小天鹅股份有限公司 | Clothes dryer |
| CN203247439U (en) * | 2013-04-22 | 2013-10-23 | 无锡小天鹅股份有限公司 | Condensing system effectively improving drying efficiency of full-automatic washing and drying all-in-one machine |
| CN105200747A (en) * | 2014-06-10 | 2015-12-30 | 博西华电器（江苏）有限公司 | Clothes dryer |
| CN205711468U (en) * | 2016-06-12 | 2016-11-23 | 海信（山东）冰箱有限公司 | A kind of clothing drying device and washing-drying integral machine |
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