CN107560416A - A kind of waste heat secondary recovery structure of heat pump drier - Google Patents
A kind of waste heat secondary recovery structure of heat pump drier Download PDFInfo
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- CN107560416A CN107560416A CN201710805135.9A CN201710805135A CN107560416A CN 107560416 A CN107560416 A CN 107560416A CN 201710805135 A CN201710805135 A CN 201710805135A CN 107560416 A CN107560416 A CN 107560416A
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- heat
- heat exchange
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- heat pump
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of waste heat secondary recovery structure of heat pump drier, include heat pump main frame, the heat pump main frame is provided with outdoor evaporator and indoor condenser, the outdoor evaporator is connected with heat exchanger, the heat exchanger is internally provided with cold air duct and hot-air channel for carrying out heat exchange, the import of the hot-air channel is provided with the induced draft fans of the damp-heat air for taking hothouse away, the outlet of the hot-air channel is close to the inlet side of outdoor evaporator, the outlet of the hot-air channel is provided with the water knockout drum for separating condensed water, the water knockout drum is connected with header tank；The import of the cold air duct is arranged in the outside of outdoor evaporator, and the outlet of the cold air duct is towards the inlet side of indoor condenser.The present invention utilizes heat exchanger and outdoor evaporator, the heat of secondary recovery damp-heat air, reduces energy consumption, saves the energy.
Description
Technical field
The present invention relates to drying equipment technical field, the waste heat secondary recovery structure of specifically a kind of heat pump drier.
Background technology
Dry the technology for referring to and moisture or other hygroscopic waters being removed from wet stock, be widely used in chemical industry, food, light industry,
Each industrial circles such as weaving, coal, agriculture and forestry product processing and building materials.Its general principle is, at a certain temperature, any aqueous
Wet stock has certain vapour pressure, and when this vapour pressure is more than the water vapor partial pressure in ambient gas, moisture will vaporize.Vaporization institute
Calorific requirement, or provided from surrounding hot gas, or by other thermals source by radiation, heat transfer.Understand to influence to do by principles above
The objective condition of dry efficiency has two：One is the water vapor partial pressure in surrounding air, and one is heat.According to the supplier of heat
Formula is different, there is a variety of dry types, such as convective drying, conductive drying, radiant drying, dielectric heating drying etc..Convective drying exists
Most widely used in production, it includes pneumatic conveying drying, spray drying, fluidized drying, revolving drum drying and carriage-type drying etc..Conduction
Drying includes roller drying, freeze-drying, vacuum rake type drying etc..Radiant drying and dielectric heating drying because cost is higher,
Industrially using less.Above drying means or drying equipment all suffer from a contradiction, i.e. drying efficiency and drying cost is past
It is past directly proportional, also increase energy consumption cost while increasing heat supply.Therefore, existing highly effective drying function is developed, again
Can be the important directions of current drying industry technology development with the drying device of energy-conservation of consumption reduction.Wherein heat pump drier be use compared with
Extensive drying machine, existing heat pump drier are typically mounted on outside hothouse, by the breeze fan of condenser to hothouse
Be sent into hot blast, hothouse opposite side installation air exhauster damp-heat air caused by drying is taken away, but damp-heat air temperature compared with
Height, directly drain and cause substantial amounts of thermal loss, be unfavorable for energy-saving.It would therefore be highly desirable to the waste heat for developing heat pump drier returns
Structure is received, using the waste heat of damp-heat air, to reduce energy consumption.
The content of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of waste heat secondary recovery structure of heat pump drier, returns
The heat of hygroscopic hot-air, energy consumption is reduced, save the energy.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of waste heat secondary recovery structure of heat pump drier, include heat pump main frame, the heat pump main frame, which is set, has family
Outer evaporator and indoor condenser, the outdoor evaporator are provided with the first blower fan, and the indoor condenser is provided with towards dry
The breeze fan of dry chamber interior blowing, the outdoor evaporator are connected with heat exchanger, the heat exchanger be internally provided be used for into
The cold air duct and hot-air channel of row heat exchange, the import of the hot-air channel are provided with the damp-heat air for taking hothouse away
Induced draft fans, the hot-air channel outlet close to outdoor evaporator inlet side, the outlet of the hot-air channel is provided with
For separating the water knockout drum of condensed water, the water knockout drum is connected with header tank；The import of the cold air duct is arranged in outdoor steaming
Send out the outside of device, the outlet of the cold air duct is towards the inlet side of indoor condenser.
The angle of 60 to 90 degree is formed as the improvement of above-mentioned technical proposal, between the cold air duct and hot-air channel.
As the further improvement of above-mentioned technical proposal, the heat exchanger is internally provided with some parallel heat exchange fins,
Wind passage, the wind passage composition cold air duct of odd number, the wind passage of even number are formed between two adjacent heat exchange fins
Form hot-air channel.
Further improve, the heat exchanger is internally provided with some heat exchange copper tubes, and the heat exchange copper tube is internally formed heat
Wind passage, the outside of the heat exchange copper tube form cold air duct.
Further improve, the heat exchange copper tube is arranged to multiple rows of, two adjacent row's heat exchange copper tube interlaced arrangements.
Further improve, the import of the cold air duct is provided with dedusting guard.
Further improve, be provided with demarcation strip in the hothouse, between the top surface of the demarcation strip and hothouse, side
Return air channel is formed, the import of the hot-air channel of the heat exchanger and the outlet of cold air duct are located in return air channel, the room
Inner condenser is connected on demarcation strip.
Further improve, the both sides of the indoor condenser are provided with circulating fan.
The beneficial effects of the invention are as follows：Damp-heat air caused by drying operation is taken away by induced draft fans, by hot blast
Passage blows to outdoor evaporator, and outdoor cold wind blows to indoor condenser by cold air duct, in heat exchanger cold wind with it is damp and hot
Air carries out heat exchange, improves the temperature of cold wind, for the first time using the waste heat of damp-heat air, divides water in hot-air channel outlet setting
Device discharges condensed water, reduces the condensation water quantity for getting in condenser, reduces fin heat absorption effect of the condensed water to indoor condenser
The influence of fruit, improve the service life of indoor condenser；Air intake of first blower fan work of outdoor evaporator in outdoor evaporator
Side produces negative-pressure sucking and the damp-heat air flowed out in hot-air channel suction outdoor evaporator is discharged into outdoor again, utilizes damp-heat air
Waste heat be refrigerant evaporation heat supply, second utilizes the waste heat of damp-heat air.Two level is carried out using heat exchanger and outdoor evaporator
Recovery waste heat, the waste heat of damp-heat air is on the one hand recycled, reduced the waste of the energy, on the other hand substantially reduced heat pump and do
The energy consumption of dry machine, save the energy, more environmentally friendly energy-conservation.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the top view of the present invention；
Fig. 2 is the front view of the present invention.
Embodiment
A kind of 1~Fig. 2 of reference picture, the waste heat secondary recovery structure of heat pump drier, includes heat pump main frame, the heat pump
Main frame is provided with outdoor evaporator 12 and indoor condenser 13, and the outdoor evaporator 12 is provided with the first blower fan 121, the room
Inner condenser 13 is provided with the breeze fan 131 towards blowing inside hothouse, and the outdoor evaporator 12 is connected with heat exchanger
3, the heat exchanger 3 is internally provided with cold air duct and hot-air channel for carrying out heat exchange, the import of the hot-air channel
The induced draft fans 31 of the damp-heat air for taking hothouse away are provided with, the outlet of the hot-air channel is close to outdoor evaporator 12
Inlet side, the outlet of the hot-air channel is provided with the water knockout drum 4 for separating condensed water, and the water knockout drum 4 is connected with collection
Water tank, condensed water is removed using water knockout drum 4, reduces the condensation water quantity for getting in condenser 13, reduce condensed water to indoor cold
The influence of the fin endothermic effect of condenser 13, improve the service life of indoor condenser 13；The import arrangement of the cold air duct
In the outside of outdoor evaporator 12, the outlet of the cold air duct is towards the inlet side of indoor condenser 13.Heat pump drier
Principle is as follows, the cold media gas that compressor 11 works to indoor condenser 13 supply high temperature, cold media gas condenser 13 indoors
In be condensed into liquid release heat, heat the air through indoor condenser 13, be sent into by breeze fan 131 to hothouse 2
Hot blast, so that the material to be dried being placed in hothouse 2 removes moisture, complete drying operation；Refrigerant liquid flows through outdoor
Evaporator 12 flashes to gas and returns to one circulation of the completion of compressor 11 again.The flow of recovery waste heat is as follows：Pass through exhausting wind
Machine 31 takes damp-heat air caused by drying operation away, and outdoor evaporator 12 is blowed to by the hot-air channel of heat exchanger 3, outdoor
Cold wind flows to indoor condenser 13 by the cold air duct of heat exchanger 3, and cold wind carries out hot friendship with damp-heat air in heat exchanger 3
Change, improve the temperature of cold wind, make use of the waste heat of damp-heat air for the first time；First blower fan 121 of outdoor evaporator 12 works,
Negative-pressure sucking is produced in the inlet side of outdoor evaporator 12, and the damp-heat air flowed out in hot-air channel is pumped into outdoor evaporator 12
Outdoor is discharged to again, is refrigerant liquid evaporation heat supply using the waste heat of damp-heat air, make use of the waste heat of damp-heat air for the second time, one
Aspect has recycled the waste heat of damp-heat air, reduces the waste of the energy, on the other hand substantially reduces energy consumption, saves the energy, more
Environmental protection and energy saving.
The first scheme, the heat exchanger 3 are internally provided with some parallel heat exchange fins, adjacent two heat exchange fins
Between form wind passage, the wind passage composition cold air duct of odd number, the wind passage composition hot-air channel of even number, in order to add
Big heat exchange area, heat exchange fin may be configured as waveform.
Second scheme, heat exchanger 3 are internally provided with some heat exchange copper tubes, and the hot blast that is internally formed of the heat exchange copper tube leads to
Road, the outside of the heat exchange copper tube form cold air duct.Preferably, the heat exchange copper tube is arranged to multiple rows of, and two adjacent rows change
Hot copper pipe interlaced arrangement, heat exchange copper tube may be arranged as spiral shape to increase heat exchange area and time.Preferably, it is described cold
80 degree of angle is formed between wind passage and hot-air channel.
Heat exchanger 3 is separated cold wind and damp-heat air using heat exchange fin or heat exchange copper tube, heat exchange fin or heat exchange
The heat conductivility of copper pipe is superior to be advantageous to accelerate heat transfer rate, improves the temperature of the cold wind of supply chamber inner condenser 13, indirectly
Improve the hot blast temperature that indoor condenser 13 is sent into hothouse 2.
In the present embodiment, it is preferred that the import of the cold air duct is provided with dedusting guard 32 to remove in air
Dust, debris, the cleaning of heat exchanger 3 is kept, improve the cleanliness factor into the hot blast of hothouse 2.
It is described above, the simply better embodiment of the present invention, but the present invention is not limited to above-described embodiment, as long as
It reaches the technique effect of the present invention with any same or similar means, should all fall under the scope of the present invention.
Claims (8)
1. a kind of waste heat secondary recovery structure of heat pump drier, includes heat pump main frame, the heat pump main frame is provided with outdoor
Evaporator (12) and indoor condenser (13), it is characterised in that：The outdoor evaporator (12) is connected with heat exchanger (3), described
Heat exchanger (3) is internally provided with cold air duct and hot-air channel for carrying out heat exchange, and the import of the hot-air channel is set
Have for taking the induced draft fans of the damp-heat air of hothouse (31) away, the outlet of the hot-air channel is close to outdoor evaporator (12)
Inlet side, the outlet of the hot-air channel is provided with the water knockout drum (4) for separating condensed water, water knockout drum (4) connection
There is header tank；The import of the cold air duct is arranged in the outside of outdoor evaporator (12), the outlet direction of the cold air duct
The inlet side of indoor condenser (13).
A kind of 2. waste heat secondary recovery structure of heat pump drier according to claim 1, it is characterised in that：The cold wind
The angle of 60 to 90 degree is formed between passage and hot-air channel.
A kind of 3. waste heat secondary recovery structure of heat pump drier according to claim 2, it is characterised in that：The heat exchange
Device (3) is internally provided with some parallel heat exchange fins, and wind passage, the mistake of odd number are formed between adjacent two heat exchange fins
Wind passage forms cold air duct, the wind passage composition hot-air channel of even number.
A kind of 4. waste heat secondary recovery structure of heat pump drier according to claim 3, it is characterised in that：The heat exchange
Fin is arranged to waveform.
A kind of 5. waste heat secondary recovery structure of heat pump drier according to claim 2, it is characterised in that：The heat exchange
Device (3) is internally provided with some heat exchange copper tubes, and the heat exchange copper tube is internally formed hot-air channel, the outside of the heat exchange copper tube
Form cold air duct.
A kind of 6. waste heat secondary recovery structure of heat pump drier according to claim 5, it is characterised in that：The heat exchange
Copper pipe is arranged to multiple rows of, two adjacent row's heat exchange copper tube interlaced arrangements.
A kind of 7. waste heat secondary recovery structure of heat pump drier according to claim 5, it is characterised in that：The heat exchange
Copper pipe is arranged to helical form, and the heat exchange copper tube is arranged to two multiple rows of and adjacent row's heat exchange copper tube interlaced arrangements.
8. according to a kind of waste heat secondary recovery structure of any described heat pump drier in claim 1-7, it is characterised in that：
The import of the cold air duct is provided with dedusting guard (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710805135.9A CN107560416A (en) | 2017-09-07 | 2017-09-07 | A kind of waste heat secondary recovery structure of heat pump drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710805135.9A CN107560416A (en) | 2017-09-07 | 2017-09-07 | A kind of waste heat secondary recovery structure of heat pump drier |
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| Publication Number | Publication Date |
|---|---|
| CN107560416A true CN107560416A (en) | 2018-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710805135.9A Pending CN107560416A (en) | 2017-09-07 | 2017-09-07 | A kind of waste heat secondary recovery structure of heat pump drier |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204513991U (en) * | 2015-04-03 | 2015-07-29 | 西安永创节能设备有限公司 | The high temperature heat pump printing drying system that a kind of Inner eycle secondary recovery utilizes |
| US20170115061A1 (en) * | 2013-04-26 | 2017-04-27 | David R Loebach | Crop drying system |
| CN206469597U (en) * | 2016-12-08 | 2017-09-05 | 广西田园生化股份有限公司 | A kind of drying plant |
| CN107131753A (en) * | 2017-06-28 | 2017-09-05 | 广东工业大学 | A kind of solar energy heating drying system |
| CN207317477U (en) * | 2017-09-07 | 2018-05-04 | 江门市创惠节能科技有限公司 | A kind of waste heat secondary recovery structure of heat pump drier |
-
2017
- 2017-09-07 CN CN201710805135.9A patent/CN107560416A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170115061A1 (en) * | 2013-04-26 | 2017-04-27 | David R Loebach | Crop drying system |
| CN204513991U (en) * | 2015-04-03 | 2015-07-29 | 西安永创节能设备有限公司 | The high temperature heat pump printing drying system that a kind of Inner eycle secondary recovery utilizes |
| CN206469597U (en) * | 2016-12-08 | 2017-09-05 | 广西田园生化股份有限公司 | A kind of drying plant |
| CN107131753A (en) * | 2017-06-28 | 2017-09-05 | 广东工业大学 | A kind of solar energy heating drying system |
| CN207317477U (en) * | 2017-09-07 | 2018-05-04 | 江门市创惠节能科技有限公司 | A kind of waste heat secondary recovery structure of heat pump drier |
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Application publication date: 20180109 |