CN110965291B - Drying air duct, clothes drying equipment and control method - Google Patents
Drying air duct, clothes drying equipment and control method Download PDFInfo
- Publication number
- CN110965291B CN110965291B CN201911234689.3A CN201911234689A CN110965291B CN 110965291 B CN110965291 B CN 110965291B CN 201911234689 A CN201911234689 A CN 201911234689A CN 110965291 B CN110965291 B CN 110965291B
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- Prior art keywords
- heat pipe
- channel
- drying
- heating
- shell
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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
- D06F58/04—Details
-
- 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
Abstract
The invention provides a drying air duct, clothes drying equipment and a control method. The drying air duct comprises a shell and a heat pipe set, wherein a condensing channel and a heating channel are formed in the shell, the heat pipe set is provided with a heat pipe cold end and a heat pipe hot end, the heat pipe cold end is positioned in the condensing channel, and the heat pipe hot end is positioned in the heating channel. According to the drying air duct, the clothes drying equipment and the control method, the cold end and the hot end of the heat pipe set are correspondingly arranged in the condensing channel and the heating channel of the drying air duct, so that the utilization rate of the heat pipe set is improved, the dehumidification and heating efficiency of drying air flow is improved, and the heat pollution to the external environment is prevented.
Description
Technical Field
The invention belongs to the technical field of clothes drying equipment, and particularly relates to a drying air duct, clothes drying equipment and a control method.
Background
With the continuous improvement of life quality, people have higher and higher demands on life, and a healthy, comfortable and rapid life style is being pursued, so that clothes washing and drying machines are used as pets in the market and are in the reach of the public. Existing dryers include in-line, condensing, and heat pump types. Among the three drying modes, the heat pump type clothes dryer has overwhelming advantages in the aspects of drying efficiency, energy conservation and the like, and is most suitable for the national green energy conservation and emission reduction purposes. But is limited in miniaturized applications of the dryer due to the limitations of the heat pump dryer's own system, being bulky, heavy and risking refrigerant leakage. There is thus an urgent need to develop a laundry dryer product for the small market. In order to meet the miniaturization requirement of clothes drying equipment, the prior art mostly adopts a mode of combining a semiconductor refrigerating sheet and a heat pipe group to condense and dissipate heat of drying air flow, but the inventor finds that the heat pipe group in the prior art is mostly used for condensation and dehumidification, namely the cold end of the heat pipe group in the prior art is utilized, and the hot end of the heat pipe group is considered to be exposed to the environment outside the air duct based on space arrangement, so that the heat of the heat pipe group is not fully utilized, the utilization rate of the heat pipe group is reduced, and the heat of the heat pipe group is conducted to the external environment to cause heat pollution.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to provide a drying air duct, a clothes drying device and a control method, wherein the cold end and the hot end of a heat pipe set are correspondingly arranged in a condensing channel and a heating channel of the drying air duct, so that the utilization rate of the heat pipe set is improved, the dehumidification and heating efficiency of drying air flow is improved, and the heat pollution to the external environment is prevented.
In order to solve the problems, the invention provides a drying air duct which comprises a shell and a heat pipe set, wherein a condensing channel and a heating channel are formed in the shell, the heat pipe set is provided with a heat pipe cold end and a heat pipe hot end, the heat pipe cold end is positioned in the condensing channel, and the heat pipe hot end is positioned in the heating channel.
Preferably, the shell is a cylindrical structure with one closed end and one open end, a first partition board is arranged in the shell, a first gap is formed between the first partition board and the closed end of the shell, the first partition board separates the shell to form the condensation channel and the heating channel, the heat pipe group comprises a first heat pipe group, and the first heat pipe group is connected to the first partition board.
Preferably, a second partition plate is further arranged in the shell, the second partition plate is arranged at intervals opposite to the first partition plate and has a second gap with the closed end of the shell, the heat pipe group further comprises a second heat pipe group, the second heat pipe group is connected to the second partition plate, the gap between the first partition plate and the second partition plate forms a condensation channel, and one side, away from each other, of the first partition plate and the second partition plate forms a heating channel with the shell.
Preferably, the first heat pipe groups and the second heat pipe groups are alternately arranged at intervals along the flow guiding direction of the condensation channel.
Preferably, the closed end has a flow guiding structure for baffling the flow of air in the condensing channel to the heating channel.
Preferably, the flow guiding structure comprises a substrate, and an edge area of the substrate is higher than a middle area of the substrate.
Preferably, a plurality of guide ribs are arranged on one side of the base plate facing the opening end of the shell.
Preferably, the drying air duct further comprises a semiconductor refrigeration sheet, and the hot end and the cold end of the semiconductor refrigeration sheet are respectively positioned in the heating channel and the condensing channel; and/or the air flow inlet of the condensing channel is provided with a filtering piece, and/or the outlet of the heating channel is provided with a fan.
The invention also provides clothes drying equipment comprising the drying air duct.
The invention also provides a control method of the clothes drying equipment, which is used for controlling the clothes drying equipment and comprises the following steps:
acquiring a real-time drying temperature Th in a heating channel;
comparing with a preset drying temperature Ths;
and when Th < Ths, adjusting the running number of the heating pipe group so that Th=ths.
Preferably, after th=ths, further comprising:
acquiring a real-time condensation temperature Tl in a condensation channel;
comparing with a preset condensing temperature Tls;
when Tl is larger than Tls, the running number of the heating pipe group is adjusted so that Tl is smaller than or equal to Tls.
Preferably, when the clothes drying apparatus comprises a semiconductor refrigerating plate, and Th < Ths,
further comprises: and adjusting the running number of the semiconductor refrigerating sheets so as to ensure th=ths.
Preferably, after th=ths, further comprising:
acquiring a real-time condensation temperature Tl in a condensation channel;
comparing with a preset condensing temperature Tls;
and when Tl is larger than Tls, adjusting the running number of the semiconductor refrigerating sheets so that Tl is smaller than or equal to Tls.
According to the drying air duct, the clothes drying equipment and the control method, the cold ends of the heat pipes and the hot ends of the heat pipes of the heat pipe group are respectively and correspondingly arranged in the heating channel and the condensing channel of the drying air duct, so that the temperature difference between the cold quantity of the air flow after dehumidification and condensation and the hot ends of the heat pipes can be fully utilized, the heat exchange efficiency of the heat pipe group is ensured, the heat of the hot ends of the heat pipes is fully utilized to heat the drying air flow, the heat of the heat pipe group is fully utilized, and meanwhile, the heat pollution phenomenon caused by the fact that the hot ends of the heat pipes are in the external environment in the prior art is prevented.
Drawings
Fig. 1 is a schematic diagram of an internal structure of a drying duct according to an embodiment of the present invention (arrows in the figure show airflow directions);
FIG. 2 is a schematic diagram of the structure of A-A in FIG. 1;
FIG. 3 is a schematic view of the structure of B-B in FIG. 1;
fig. 4 is a schematic diagram of an arrangement principle of a drying duct according to an embodiment of the present invention.
The reference numerals are expressed as:
1. a housing; 11. a condensing channel; 12. a heating channel; 13. a first separator; 14. a second separator; 2. a heat pipe group; 23. a first heat pipe group; 24. a second heat pipe group; 31. a substrate; 32. guide ribs; 4. a semiconductor refrigeration sheet; 41. a first cooling sheet; 42. a second cooling plate; 5. a filter; 6. a blower; 71. a first temperature sensor; 72. and a second temperature sensor.
Detailed Description
Referring to fig. 1 to fig. 4 in combination, according to an embodiment of the present invention, a drying duct is provided, including a housing 1 and a heat pipe group 2, where a condensation channel 11 and a heating channel 12 are configured in the housing 1, the heat pipe group 2 has a heat pipe cold end and a heat pipe hot end, the heat pipe cold end is located in the condensation channel 11, the heat pipe hot end is located in the heating channel 12, the heat pipe group 2 is only required to use a heat pipe combination in the prior art, the present invention is not limited in particular, the drying duct further includes a semiconductor refrigeration sheet 4, and the hot end and the cold end of the semiconductor refrigeration sheet 4 are respectively located in the heating channel 12 and the condensation channel 11, so as to realize a common condensation and heating effect of the semiconductor refrigeration sheet 4 and the heat pipe group 2. In this technical scheme, the cold end of the heat pipe of heat pipe group 2 and the hot end of the heat pipe are respectively corresponding to be set up in heating channel 12 and condensation channel 11 of stoving wind channel, can make full use of the cold volume of the air current after dehumidification condensation and the difference in temperature between the hot end of the heat pipe to guaranteed the heat exchange efficiency of heat pipe group 2, and make full use of the heat at the hot end of the heat pipe heats the stoving air current, make full use of the heat of heat pipe group, prevented simultaneously that the hot end of the heat pipe from being in the production of the thermal pollution phenomenon that the external environment brought in the prior art.
The shell 1 can be preferably designed into a cylindrical structure with one closed end and one open end, a first partition 13 is arranged in the shell 1, a first gap is formed between the first partition 13 and the closed end of the shell 1, the first partition 13 separates the shell 1 to form the condensation channel 11 and the heating channel 12, the heat pipe group 2 comprises a first heat pipe group 23, the first heat pipe group 23 is connected to the first partition 13, at the moment, after the drying air flows into the drying air channel through the condensation channel 11, the drying air flows into the cold end of the heat pipe to exchange heat with the cold end of the heat pipe so as to reduce the moisture content in the drying air flow, and the condensed drying air flow enters one side of the heating channel 12 to realize heating up after passing through the first gap, becomes drying air flow with higher temperature and then enters a roller of the clothes drying equipment to realize drying of clothes in the roller. The structure of this way fully utilizes the relative position of the cold end of the heat pipe and the hot end of the heat pipe, thus the structure of the drying air duct is especially simple and compact.
Further, a second partition 14 is further disposed in the housing 1, the second partition 14 is disposed opposite to the first partition 13 at a distance, and has a second gap with a closed end of the housing 1, the heat pipe set 2 further includes a second heat pipe set 24, the second heat pipe set 24 is connected to the second partition 14, a gap between the first partition 13 and the second partition 14 forms the condensation channel 11, and a heating channel 12 is formed between a side of the first partition 13 and the second partition 14 facing away from each other and the housing 1. That is, a structure in which the condensation channel 11 is located between the two heating channels 12 is formed in the drying air channel, the first heat pipe group 23 and the second heat pipe group 24 are arranged in a mirror image manner, and the heating channels 12 are arranged in a mirror image manner with respect to the condensation channel 11, so that the dehumidifying and heating efficiency of the drying air channel is improved, and meanwhile, the structure is simple and compact. At this time, it is understood that the drying air flow in the condensation duct 11 will be deflected into the heating duct 12 (via the first gap and the second gap, respectively) under the action of the closed end of the housing 1, and preferably, a deflector structure is disposed at the closed end, for deflecting the air flow in the condensation duct 11 into the heating duct 12, so as to increase the smoothness of the drying air flow flowing from the condensation duct 11 to the heating duct 12, in particular, the deflector structure includes a base plate 31, an edge area of the base plate 31 is higher than a middle area, a side of the base plate 31 facing the open end of the housing 1 is provided with a plurality of deflector ribs 32, the plurality of deflector ribs 32 extend from the middle area to the edge area, and it is understood that the middle area is opposite to the outlet of the condensation duct 11, and the edge area corresponds to the heating duct 12, thereby the plurality of deflector ribs 32 can guide the air flow in the condensation duct 11 into the heating duct 12, and prevent the loss of resistance in the middle area of the air flow.
Preferably, the first heat pipe group 23 and the second heat pipe group 24 may be provided in plural groups, and plural groups of the first heat pipe group 23 and the second heat pipe group 24 are alternately arranged at intervals along the flow guiding direction of the condensation channel 11. As shown in fig. 1, with reference to the orientation shown in fig. 1, the first heat pipe group 23 and the second heat pipe group 24 are disposed opposite to each other vertically, and the cold ends of the corresponding heat pipes are staggered in the horizontal direction, that is, projected along the direction of flow guiding of the condensation channel 11, and the cold ends of the heat pipes of the first heat pipe group 23 intersect with the cold ends of the heat pipes of the second heat pipe group 24, so that the cold ends of the heat pipes dehumidify the drying air flow in the condensation channel 11 more thoroughly and uniformly.
As shown in fig. 2, the semiconductor refrigeration sheet 4 includes a first refrigeration sheet 41 and a second refrigeration sheet 42 that are disposed vertically symmetrically, and the connection and the arrangement of the first heat pipe group 23 and the second heat pipe group 24 are the same, which are not described here.
The air inlet of the condensing channel 11 is provided with a filtering piece 5, the outlet of the heating channel 12 is provided with a fan 6, and the filtering piece 5 is a conventional filter screen, for example, so as to perform necessary filtration on sundries such as cotton wool in the drying air flow entering the drying air channel, and prevent adverse effect on the downstream fan 6.
According to the embodiment of the invention, the clothes drying equipment comprises the drying air duct.
According to an embodiment of the present invention, there is also provided a control method of a clothes drying apparatus for controlling the above clothes drying apparatus, including the steps of:
acquiring a real-time drying temperature Th in the heating channel 12 through a second temperature sensor 72;
comparing with a preset drying temperature Ths;
and when Th < Ths, adjusting the running number of the increased heat pipe group 2 so that Th=ths.
By adopting the method, the drying temperature in the heating channel 12 can reach the preset drying temperature quickly, so as to ensure the drying efficiency of the clothes drying equipment. Further, after th=ths, further comprising: acquiring a real-time condensation temperature Tl in the condensation channel 11 by the first temperature sensor 71; comparing with a preset condensing temperature Tls; and when Tl is larger than Tls, adjusting the operation number of the increased heat pipe group 2 so that Tl is smaller than or equal to Tls. That is, after the drying temperature reaches the preset drying temperature, the temperature in the condensing channel 11 is further adjusted on the basis of the preset drying temperature, so that the real-time condensing temperature is expected to be reduced, and the moisture content of the drying air flow in the condensing channel 11 is reduced as much as possible, which is beneficial to further improving the drying efficiency of the clothes drying device.
Further, when the clothes drying apparatus includes the semiconductor refrigerating sheet 4, and Th < Ths, it further includes: the number of semiconductor refrigeration sheets 4 is adjusted so that th=ths. Preferably, after th=ths, further comprising: acquiring a real-time condensation temperature Tl in the condensation channel 11; comparing with a preset condensing temperature Tls; when Tl is larger than Tls, the running number of the semiconductor refrigerating sheets 4 is adjusted so that Tl is smaller than or equal to Tls.
It will be readily appreciated by those skilled in the art that the above advantageous ways can be freely combined and superimposed without conflict.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention. The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (8)
1. The drying air duct is characterized by comprising a shell (1) and a heat pipe set (2), wherein a condensing channel (11) and a heating channel (12) are formed in the shell (1), the heat pipe set (2) is provided with a heat pipe cold end and a heat pipe hot end, the heat pipe cold end is positioned in the condensing channel (11), and the heat pipe hot end is positioned in the heating channel (12); the shell (1) is of a cylindrical structure with one closed end and one open end, a first partition plate (13) is arranged in the shell (1), a first gap is reserved between the first partition plate (13) and the closed end of the shell (1), the first partition plate (13) separates the shell (1) to form the condensation channel (11) and the heating channel (12), the heat pipe group (2) comprises a first heat pipe group (23), and the first heat pipe group (23) is connected to the first partition plate (13); the heat pipe assembly (2) further comprises a second heat pipe assembly (24), the second heat pipe assembly (24) is connected to the second partition plate (14), a gap between the first partition plate (13) and the second partition plate (14) forms a condensation channel (11), and a heating channel (12) is formed between one side, away from each other, of the first partition plate (13) and the second partition plate (14) and the shell (1); the closed end is provided with a flow guiding structure which is used for guiding the air flow in the condensing channel (11) into the heating channel (12) in a baffling way, the flow guiding structure comprises a base plate (31), and the edge area of the base plate (31) is higher than the middle area; along the diversion direction of the condensation channel (11), the first heat pipe groups (23) and the second heat pipe groups (24) are arranged in a staggered way at intervals.
2. The drying tunnel according to claim 1, characterized in that a side of the base plate (31) facing the open end of the housing (1) is provided with a plurality of guide ribs (32).
3. The drying tunnel according to any one of claims 1 to 2, further comprising a semiconductor refrigeration sheet (4), the hot and cold ends of the semiconductor refrigeration sheet (4) being respectively in the heating channel (12), condensation channel (11); and/or the air flow inlet of the condensing channel (11) is provided with a filtering piece (5), and/or the outlet of the heating channel (12) is provided with a fan (6).
4. A clothes drying apparatus comprising a drying tunnel, wherein the drying tunnel is the drying tunnel according to any one of claims 1 to 3.
5. A control method of a clothes drying apparatus according to claim 4, comprising the steps of:
acquiring a real-time drying temperature Th in a heating channel (12);
comparing with a preset drying temperature Ths;
when Th < Ths, the number of operation of the heating tube group (2) is adjusted so that th=ths.
6. The control method according to claim 5, wherein,
after th=ths, further comprising:
acquiring a real-time condensation temperature Tl in a condensation channel (11);
comparing with a preset condensing temperature Tls;
when Tl is larger than Tls, the operation number of the heating pipe group (2) is adjusted so that Tl is smaller than or equal to Tls.
7. The control method according to claim 5, wherein,
when the clothes drying equipment comprises a semiconductor refrigerating sheet (4) and Th < Ths,
further comprises: the number of the semiconductor refrigerating sheets (4) is adjusted so that th=ths.
8. The control method according to claim 7, wherein,
after th=ths, further comprising:
acquiring a real-time condensation temperature Tl in a condensation channel (11);
comparing with a preset condensing temperature Tls;
when Tl is larger than Tls, the running number of the semiconductor refrigerating sheets (4) is adjusted so that Tl is smaller than or equal to Tls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911234689.3A CN110965291B (en) | 2019-12-05 | 2019-12-05 | Drying air duct, clothes drying equipment and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911234689.3A CN110965291B (en) | 2019-12-05 | 2019-12-05 | Drying air duct, clothes drying equipment and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110965291A CN110965291A (en) | 2020-04-07 |
| CN110965291B true CN110965291B (en) | 2023-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911234689.3A Active CN110965291B (en) | 2019-12-05 | 2019-12-05 | Drying air duct, clothes drying equipment and control method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112432457A (en) * | 2021-01-27 | 2021-03-02 | 华东交通大学 | Medicinal material low temperature drying device based on solar thermoelectric effect |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884297A (en) * | 2015-12-16 | 2017-06-23 | 青岛海尔滚筒洗衣机有限公司 | A kind of clothes drying device and clothes-drying method |
| CN107151906A (en) * | 2016-03-04 | 2017-09-12 | 青岛海尔洗衣机有限公司 | A kind of waste heat recovery dryer |
| CN207231092U (en) * | 2017-06-30 | 2018-04-13 | 安徽美乐柯制冷空调设备有限公司 | A kind of multifunctional heat pump drying device |
| CN108252050A (en) * | 2017-12-15 | 2018-07-06 | 同济大学 | A kind of thermoelectricity heat pipe combined type dryer |
| CN211446322U (en) * | 2019-12-05 | 2020-09-08 | 珠海格力电器股份有限公司 | Drying air duct and clothes drying equipment |
-
2019
- 2019-12-05 CN CN201911234689.3A patent/CN110965291B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884297A (en) * | 2015-12-16 | 2017-06-23 | 青岛海尔滚筒洗衣机有限公司 | A kind of clothes drying device and clothes-drying method |
| CN107151906A (en) * | 2016-03-04 | 2017-09-12 | 青岛海尔洗衣机有限公司 | A kind of waste heat recovery dryer |
| CN207231092U (en) * | 2017-06-30 | 2018-04-13 | 安徽美乐柯制冷空调设备有限公司 | A kind of multifunctional heat pump drying device |
| CN108252050A (en) * | 2017-12-15 | 2018-07-06 | 同济大学 | A kind of thermoelectricity heat pipe combined type dryer |
| CN211446322U (en) * | 2019-12-05 | 2020-09-08 | 珠海格力电器股份有限公司 | Drying air duct and clothes drying equipment |
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| CN110965291A (en) | 2020-04-07 |
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