CN204875271U - Pre-cooling device of heat pump clothes dryer and clothes dryer - Google Patents
Pre-cooling device of heat pump clothes dryer and clothes dryer Download PDFInfo
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- CN204875271U CN204875271U CN201520601764.6U CN201520601764U CN204875271U CN 204875271 U CN204875271 U CN 204875271U CN 201520601764 U CN201520601764 U CN 201520601764U CN 204875271 U CN204875271 U CN 204875271U
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- cooled device
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- 238000001816 cooling Methods 0.000 title claims abstract description 7
- 238000005507 spraying Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 69
- 239000007921 spray Substances 0.000 claims description 42
- 238000000034 method Methods 0.000 claims description 25
- 230000004087 circulation Effects 0.000 claims description 15
- 239000002826 coolant Substances 0.000 claims description 8
- 239000012736 aqueous medium Substances 0.000 claims description 6
- 239000002609 medium Substances 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 abstract description 10
- 238000007791 dehumidification Methods 0.000 abstract description 7
- 238000009833 condensation Methods 0.000 abstract description 5
- 230000005494 condensation Effects 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
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- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
The utility model discloses a precooling apparatus, dryer of heat pump dryer, precooling apparatus includes: a spraying device; the spraying device is arranged between the inlet of the evaporator and the drying chamber, and is used for spraying and cooling air in the air channel between the inlet of the evaporator and the drying chamber. The utility model discloses a precooling apparatus, dryer of heat pump dryer make the humid air moisture content who gets into the evaporimeter reduce, and self temperature reduces, and more moisture content can be detached to the same refrigerating output, and evaporimeter dehumidification efficiency improves, and the clothing time subtracts the weak point, and evaporimeter entry air temperature reduces simultaneously, also makes condensation temperature reduce, and the compressor consumption reduces, and dryer power consumption reduces, the energy saving.
Description
Technical field
The utility model relates to dryer technical field, particularly relates to pre-cooled device, the dryer of heat pump clothes dryer.
Background technology
Common heat pump clothes dryer operation principle is as shown in Figure 1: dryer system is divided into two circulations, and one is the circulation of coolant system, and another is air circulation.Coolant system comprises compressor 11, condenser 12, throttling arrangement 13 and evaporimeter 14.Air circulation is made up of hothouse 21, air channel 22, circulating fan 23 etc.After dryer is opened, humid air in airtight air channel 22 is under the driving of circulating fan 23, through condenser 12 also absorptive condenser 12 liberated heat, own temperature raises, and relative humidity reduces, then hothouse 21 is entered, to the clothing heat release in hothouse 21, clothing temperature raises and discharges steam and absorbed by humid air, and humid air own temperature reduces, relative humidity increases, afterwards again through evaporator 14 cool-down dehumidification, complete a dry cycle.
Known in humid air h-d figure paper analysis, as shown in the 7-8-9-10-7 in Fig. 2, wherein 7 is hothouse inlet air condition, 8 is hothouse outlet air condition, 7-8 process is that dry air is in the indoor moisture absorption of drying, himself temperature reduces, water capacity increases, 8-9 process is that humid air enters in evaporimeter and lowers the temperature after leaving drying room, along with the reduction of temperature, humid air gradually becomes saturated moist air, then lowers the temperature further, and humid air separates out condensed water on evaporator fin, as shown in 9-10 process.8-9-10 is that humid air is lowered the temperature the process of drying in evaporimeter, needs to consume evaporator capacity, when evaporator capacity is certain, if the refrigerating capacity that 8-9 consumes is fewer, then the refrigerating capacity for dehumidifying is more, and dehumidification rate is also higher, therefore, a kind of pre-cooled device is needed.
Utility model content
In view of this, a technical problem to be solved in the utility model is to provide a kind of pre-cooled device of heat pump clothes dryer, increases spray equipment carry out pre-cooled process at evaporator inlet place.
A pre-cooled device for heat pump clothes dryer, heat pump clothes dryer comprises: coolant system and air circulation system, and described coolant system comprises the compressor, condenser, throttling arrangement and the evaporimeter that are connected successively by pipeline; Described air circulation system comprises: air channel, circulating fan and hothouse, and described pre-cooled device comprises: spray equipment; Described spray equipment is arranged between the entrance of described evaporimeter and described hothouse, carries out spraying cooling process to the air in the described air channel between the entrance and described hothouse of described evaporimeter.
According to an embodiment of the present utility model, further, described spray equipment is arranged on the porch of described evaporimeter.
According to an embodiment of the present utility model, further, described spray equipment comprises: the first water pump, spray head, water pipe; Described first water pump is connected by described water pipe with described spray head; Condensed water in the drip tray of heat pump clothes dryer is extracted out by described first water pump, is sprayed on described air channel by described condensed water by described spray head.
According to an embodiment of the present utility model, further, described pre-cooled device comprises: level sensor, the first temperature sensor and control device; In described drip tray, arrange described level sensor and described first temperature sensor, described level sensor and described first temperature sensor are electrically connected with described control device.
According to an embodiment of the present utility model, further, described pre-cooled device also comprises: the second temperature sensor; In described air channel, arrange described second temperature sensor, described second temperature sensor is electrically connected with described control device.
According to an embodiment of the present utility model, further, described second temperature sensor to be arranged in described air channel and to be positioned at the porch of described evaporimeter.
According to an embodiment of the present utility model, further, described pre-cooled device also comprises: heat-exchanger rig; Described heat-exchanger rig is arranged between the entrance of described evaporimeter and described hothouse, and the air exchange heat in described heat-exchanger rig and described air channel, cools the air in described air channel.
According to an embodiment of the present utility model, further, described heat-exchanger rig is arranged on the upstream of described air channel air supply direction relative to described spray equipment.
According to an embodiment of the present utility model, further, described heat-exchanger rig comprises: plate type heat exchanger, the second water pump; Described drip tray and described plate type heat exchanger are connected to form aqueous medium circulating line by pipeline, in described medium circulation pipeline, arrange described second water pump; Air in described air channel under the driving of circulating fan, through described plate type heat exchanger and with the condensed water heat-shift in described aqueous medium circulating line.
For achieving the above object, the utility model provides a kind of heat pump clothes dryer, comprises the pre-cooled device of heat pump clothes dryer as above.
The pre-cooled device of heat pump clothes dryer of the present utility model, dryer, increase pre-cooled device to carry out air precooling but process at evaporator inlet place, make the minimizing of humid air water capacity, the temperature reduction that enter evaporimeter, identical refrigerating capacity can remove more moisture content, evaporimeter dehumidification rate improves, drying time shortens, and also makes that condensation temperature reduces, compressor work depletion is little simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of heat pump clothes dryer of the prior art;
Fig. 2 is the operation principle schematic diagram of heat pump clothes dryer of the prior art;
Fig. 3 is the structural representation of an embodiment of pre-cooled device according to heat pump clothes dryer of the present utility model;
Fig. 4 is the structural representation of another embodiment of pre-cooled device according to heat pump clothes dryer of the present utility model;
Fig. 5 is the flow chart of the control method of pre-cooled device according to heat pump clothes dryer of the present utility model.
Detailed description of the invention
With reference to the accompanying drawings the utility model is described more fully, exemplary embodiment of the present utility model is wherein described.Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.Below in conjunction with each figure and embodiment, many-sided description is carried out to the technical solution of the utility model.
Hereafter convenient in order to describe, hereinafter alleged "left", "right", " on ", left and right, the upper and lower of D score and accompanying drawing itself is to consistent." front end ", " rear end " or " end " etc. are the left and right of accompanying drawing itself.In the utility model, " first ", " second " etc. are distinguished on describing, not other special implication.
As shown in Figure 3, the utility model provides a kind of pre-cooled device of heat pump clothes dryer, heat pump clothes dryer comprises: coolant system and air circulation system, and coolant system comprises the compressor 11, condenser 12, throttling arrangement 13 and the evaporimeter 14 that are connected successively by pipeline.Air circulation system comprises: air channel 22, circulating fan 23 and hothouse 21.Pre-cooled device comprises: spray equipment.Spray equipment is arranged between the entrance of evaporimeter 14 and hothouse 21, carries out spraying cooling process to the air in the air channel 22 between the entrance and hothouse 21 of evaporimeter 14.
Spray equipment can according to design need determine setting position, such as, the porch of evaporimeter 14 can be arranged on.Spray equipment can have polytype, and such as, as shown in Figure 3, spray equipment comprises: the first water pump 33, spray head 31, water pipe 32.First water pump 33 is connected by water pipe 32 with spray head 31, and the condensed water in the drip tray 34 of heat pump clothes dryer is extracted out by the first water pump 33, is sprayed on air channel by condensed water, carry out precooling treatment by spray head.
First water pump 33 can draw water after opening from drip tray 34, be delivered to spray head 31 through water pipe 32 to spray, spray head 31 can be arranged on evaporimeter 14 porch, water evenly can be sprayed on air channel 22, with the abundant contact heat-exchanging of air ensured and in airduct 22, the water sprayed and air flow back into drip tray 34 after completing heat exchange again, complete a water spray circulation.
In one embodiment, level sensor and the first temperature sensor are set in drip tray 34, level sensor and the first temperature sensor are electrically connected with control device, arrange the second temperature sensor in air channel 33, and the second temperature sensor is electrically connected with control device.Second temperature sensor can be arranged on the porch of evaporimeter 14, detects the air themperature in the air channel 22 of evaporimeter 14 porch.Control device can according to the water level in drip tray 34 and water temperature, and in airduct 22, the temperature of air controls the work of spray equipment etc.
In the process of heat pump clothes dryer drying, when needs are pre-cooled, the first water pump 33 is opened, now spray head 31 starts spray, cools, in the process to the humid air in air channel 22, humid air not only temperature reduces, and himself water capacity decreases, and eliminates a part of moisture content.Such as, before spray, humid air temperature is 38 DEG C, relative humidity 95%, after spray, humid air temperature is reduced to 30 DEG C, and relative humidity becomes 100%, known by calculating, before spray, humid air water capacity is 41.76g/kg, and after spray, humid air water capacity becomes 27.53g/kg.
Air after being lowered the temperature by spray equipment is entered evaporimeter 14 and lowers the temperature and dehumidify, owing to having pre-cooled and pre-dehumidified in spray process, evaporimeter 14 can remove more moisture content, and evaporimeter 14 dehumidification rate improves, and drying time shortens, simultaneously, the air themperature also step-down of condenser 22 import department, condensation temperature also reduces, the lower power consumption of compressor 11, dryer power consumption reduces, and has saved the energy.
The pre-cooled device of the heat pump clothes dryer in above-described embodiment, utilizes the condensed water of dryer to carry out precooling treatment to the air at evaporator inlet place, reduces the air themperature entering evaporimeter, improve evaporimeter dehumidification rate, reduce drying time, reduce system operating power, economize energy.
In one embodiment, pre-cooled device also comprises heat-exchanger rig.Heat-exchanger rig is arranged between the entrance of evaporimeter 14 and hothouse 21, the air exchange heat in heat-exchanger rig and air channel 22, the air in cooling air channel 22.
Heat-exchanger rig can be used alone, and also jointly can use with spray equipment.When jointly using, the setting position of heat-exchanger rig can design according to demand, such as, can be arranged on the upstream of air channel air supply direction relative to spray equipment.
Heat-exchanger rig can have polytype, and such as, as shown in Figure 4, heat-exchanger rig comprises: plate type heat exchanger 41, second water pump 42.Drip tray 34 and plate type heat exchanger 41 are connected to form aqueous medium circulating line by pipeline, arrange the second water pump 42 in medium circulation pipeline.22 air in air channel under the driving of circulating fan 23, through plate type heat exchanger 41 and with the condensed water heat-shift in aqueous medium circulating line.
Second water pump 42 can draw water after opening from drip tray 34, be delivered to plate type heat exchanger 41 through water pipe and carry out heat exchange with humid air, plate type heat exchanger 41 can be arranged on evaporimeter 41 porch, humid air does not directly contact with the water in heat exchanger 41, complete the condensed water after heat exchange with air and again flow back into drip tray 34, complete a circulation.
In one embodiment, the utility model provides a kind of heat pump clothes dryer, comprises the pre-cooled device of heat pump clothes dryer as above.
Fig. 5 is the flow chart of the control method of pre-cooled device according to heat pump clothes dryer of the present utility model, as shown in Figure 5:
Step 501, detects the height of water level of the condensed water in drip tray.
Step 502, judges that whether the height of water level of condensed water is higher than the height threshold preset, and if so, then enters step 503, otherwise returns step 501.
Step 503, judges whether the difference of condensate temperature and air channel air temperature is greater than the first temperature difference threshold value, if so, then enters step 504, otherwise returns step 503.
Step 504, carries out pre-cooled process to the air in air channel.
Step 505, judges that the difference of condensate temperature and air channel air temperature is less than the second temperature difference threshold value, if so, then enters step 506, if not, then return step 504.
Step 506, stops pre-cooled process.
First temperature difference threshold value is greater than the second temperature difference threshold value.First temperature difference threshold value, the second temperature difference threshold value can carry out arranging and adjusting according to concrete demand, and such as, the first temperature difference threshold value is 0-30 DEG C, and the second temperature difference threshold value is 0-10 DEG C.
In one embodiment, automatic sensed water level, water temperature and air themperature, realize heat pump clothes dryer evaporator inlet air precooling but, after pre-cooled by the opening and closing controlling water pump, the humid air water capacity entering evaporimeter reduces, own temperature reduces, and identical refrigerating capacity can remove more moisture content, and evaporator inlet air themperature reduces simultaneously, also condensation temperature is made to reduce, compressor work depletion is little, and dryer power consumption reduces, economize energy.
In one embodiment, after start, first level sensor detects drip tray water level, judges whether water level signal Lw equals 1, if not, then returns beginning, is if it is detected the water temperature T of condensed water by the first temperature sensor in drip tray
water, the second temperature sensor be arranged in air channel detects the temperature T of humid air in air channel
wind, calculate Δ T=T
wind-T
water.
Judge whether Δ T is more than or equal to A DEG C, as no, then return, then the first water pump is opened in this way, carry out spraying cooling process; Second water pump is opened, the heat exchange in heat exchanger of condensed water water and humid air.Judge whether Δ T is less than B DEG C, as otherwise continue pre-cooled process, then close the first water pump, the second water pump in this way.A is 0-30 DEG C, B is 0-10 DEG C.
In one embodiment, spray equipment and heat-exchanger rig can use simultaneously, also can be used alternatingly, or, in the pre-cooled device of heat pump clothes dryer, spray equipment or heat-exchanger rig are set separately.
The pre-cooled device of the heat pump clothes dryer that above-described embodiment provides, dryer, increase pre-cooled device to carry out air precooling but process at evaporator inlet place, evaporimeter dehumidification rate improves, drying time shortens, evaporator inlet air themperature reduces simultaneously, and also make condensation temperature reduce, compressor work depletion is little, dryer power consumption reduces, economize energy.
Method and system of the present utility model may be realized in many ways.Such as, any combination by software, hardware, firmware or software, hardware, firmware realizes method and system of the present utility model.Said sequence for the step of method is only to be described, and the step of method of the present utility model is not limited to above specifically described order, unless specifically stated otherwise.In addition, in certain embodiments, also the utility model can be embodied as record program in the recording medium, these programs comprise the machine readable instructions for realizing according to method of the present utility model.Thus, the utility model also covers the recording medium stored for performing the program according to method of the present utility model.
Description of the present utility model provides for the purpose of example and description, and is not exhaustively or by the utility model be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present utility model and practical application are better described, and enables those of ordinary skill in the art understand the utility model thus design the various embodiments with various amendment being suitable for special-purpose.
Claims (10)
1. a pre-cooled device for heat pump clothes dryer, heat pump clothes dryer comprises: coolant system and air circulation system, and described coolant system comprises the compressor, condenser, throttling arrangement and the evaporimeter that are connected successively by pipeline; Described air circulation system comprises: air channel, circulating fan and hothouse, is characterized in that:
Described pre-cooled device comprises: spray equipment; Described spray equipment is arranged between the entrance of described evaporimeter and described hothouse, carries out spraying cooling process to the air in the described air channel between the entrance and described hothouse of described evaporimeter.
2. pre-cooled device as claimed in claim 1, is characterized in that:
Described spray equipment is arranged on the porch of described evaporimeter.
3. pre-cooled device as claimed in claim 2, is characterized in that:
Described spray equipment comprises: the first water pump, spray head, water pipe;
Described first water pump is connected by described water pipe with described spray head; Condensed water in the drip tray of heat pump clothes dryer is extracted out by described first water pump, is sprayed on described air channel by described condensed water by described spray head.
4. pre-cooled device as claimed in claim 3, is characterized in that:
Described pre-cooled device comprises: level sensor, the first temperature sensor and control device;
In described drip tray, arrange described level sensor and described first temperature sensor, described level sensor and described first temperature sensor are electrically connected with described control device.
5. pre-cooled device as claimed in claim 4, is characterized in that:
Described pre-cooled device also comprises: the second temperature sensor;
In described air channel, arrange described second temperature sensor, described second temperature sensor is electrically connected with described control device.
6. pre-cooled device as claimed in claim 5, is characterized in that:
Described second temperature sensor to be arranged in described air channel and to be positioned at the porch of described evaporimeter.
7. pre-cooled device as claimed in claim 3, is characterized in that:
Described pre-cooled device also comprises: heat-exchanger rig;
Described heat-exchanger rig is arranged between the entrance of described evaporimeter and described hothouse, and the air exchange heat in described heat-exchanger rig and described air channel, cools the air in described air channel.
8. pre-cooled device as claimed in claim 7, is characterized in that:
Described heat-exchanger rig is arranged on the upstream of described air channel air supply direction relative to described spray equipment.
9. pre-cooled device as claimed in claim 7, is characterized in that:
Described heat-exchanger rig comprises: plate type heat exchanger, the second water pump;
Described drip tray and described plate type heat exchanger are connected to form aqueous medium circulating line by pipeline, in described medium circulation pipeline, arrange described second water pump; Air in described air channel under the driving of circulating fan, through described plate type heat exchanger and with the condensed water heat-shift in described aqueous medium circulating line.
10. a heat pump clothes dryer, is characterized in that:
Comprise the pre-cooled device of the heat pump clothes dryer as described in claim 1 to 9 any one.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520601764.6U CN204875271U (en) | 2015-08-11 | 2015-08-11 | Pre-cooling device of heat pump clothes dryer and clothes dryer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520601764.6U CN204875271U (en) | 2015-08-11 | 2015-08-11 | Pre-cooling device of heat pump clothes dryer and clothes dryer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002711A (en) * | 2015-08-11 | 2015-10-28 | 珠海格力电器股份有限公司 | Pre-cooling device of heat pump clothes dryer, clothes dryer and control method |
| CN105910412A (en) * | 2016-04-28 | 2016-08-31 | 安徽谷丰机械科技有限公司 | Internal circulating drying machine for grain drying |
| CN109237837A (en) * | 2018-07-24 | 2019-01-18 | 同济大学 | Thermoelectric cooler and thermoelectric (al) type tumble drier |
| CN112323341A (en) * | 2020-10-16 | 2021-02-05 | 青岛海尔空调器有限总公司 | Drying system and clothes treatment equipment comprising same |
| CN114016268A (en) * | 2021-11-19 | 2022-02-08 | 珠海格力电器股份有限公司 | Clothes treatment equipment with heat pump drying function and control method |
-
2015
- 2015-08-11 CN CN201520601764.6U patent/CN204875271U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002711A (en) * | 2015-08-11 | 2015-10-28 | 珠海格力电器股份有限公司 | Pre-cooling device of heat pump clothes dryer, clothes dryer and control method |
| CN105910412A (en) * | 2016-04-28 | 2016-08-31 | 安徽谷丰机械科技有限公司 | Internal circulating drying machine for grain drying |
| CN109237837A (en) * | 2018-07-24 | 2019-01-18 | 同济大学 | Thermoelectric cooler and thermoelectric (al) type tumble drier |
| CN112323341A (en) * | 2020-10-16 | 2021-02-05 | 青岛海尔空调器有限总公司 | Drying system and clothes treatment equipment comprising same |
| CN114016268A (en) * | 2021-11-19 | 2022-02-08 | 珠海格力电器股份有限公司 | Clothes treatment equipment with heat pump drying function and control method |
| CN114016268B (en) * | 2021-11-19 | 2022-11-25 | 珠海格力电器股份有限公司 | Clothes treatment equipment with heat pump drying function and control method |
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