CN207317477U - 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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- CN207317477U CN207317477U CN201721148262.8U CN201721148262U CN207317477U CN 207317477 U CN207317477 U CN 207317477U CN 201721148262 U CN201721148262 U CN 201721148262U CN 207317477 U CN207317477 U CN 207317477U
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Abstract
The utility model 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, the inlet side of the indoor condenser of outlet direction of the cold air duct.The utility model utilizes heat exchanger and outdoor evaporator, and the heat of secondary recovery damp-heat air, reduces energy consumption, saves the energy.
Description
Technical field
Drying equipment technical field is the utility model is related to, is specifically a kind of waste heat secondary recovery knot of heat pump drier
Structure.
Background technology
It is dry refer to moisture or the technology of other hygroscopic waters are 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 basic 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 heat sources by radiation, heat transfer.Understand to influence by principles above dry
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
It is dry to include roller drying, freeze-drying, vacuum rake type drying etc..Radiant drying and dielectric heating drying since 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 wind, hothouse opposite side installs air exhauster and takes the dry damp-heat air produced away, but damp-heat air temperature compared with
Height, directly drains and causes substantial amounts of thermal loss, is 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 utility model provides a kind of waste heat secondary recovery knot of heat pump drier
Structure, recycles the heat of damp-heat air, reduces energy consumption, saves the energy.
Technical solution is used by the utility model solves its technical problem：
A kind of waste heat secondary recovery structure of heat pump drier, includes heat pump main frame, and the heat pump main frame, which is set, has family
Outer evaporator and indoor condenser, the outdoor evaporator are provided with the first wind turbine, and the interior 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 with 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 inlet side of the indoor condenser of outlet direction of the cold air duct.
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.
Further as above-mentioned technical proposal is improved, and 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 exterior of the heat exchange copper tube form cold air duct.
Further improve, the heat exchange copper tube is arranged to multiple rows of, adjacent two rows of 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 interior condenser are provided with circulating fan.
The beneficial effects of the utility model are：The damp-heat air that drying operation produces is taken away by induced draft fans, is passed through
Hot-air channel blows to outdoor evaporator, and outdoor cold wind blows to indoor condenser by cold air duct, in heat exchanger cold wind with
Damp-heat air carries out heat exchange, improves the temperature of cold wind, for the first time using the waste heat of damp-heat air, exports and sets in hot-air channel
Water knockout drum discharges condensed water, reduces the condensation water quantity for getting in condenser, reduces condensed water and the fin of indoor condenser is inhaled
The influence of thermal effect, improves the service life of indoor condenser；First blower fan work of outdoor evaporator is in outdoor evaporator
Inlet side produces negative-pressure sucking and the damp-heat air flowed out in hot-air channel suction outdoor evaporator is discharged to outdoor again, and utilization is damp and hot
The waste heat of air is refrigerant evaporation heat supply, second of waste heat for utilizing damp-heat air.Carried out using heat exchanger and outdoor evaporator
Secondary recovery waste heat, has on the one hand recycled the waste heat of damp-heat air, reduces the waste of the energy, on the other hand substantially reduces heat
The energy consumption of drying machine is pumped, saves the energy, it is more environmentally friendly energy saving.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the top view of the utility model；
Fig. 2 is the front view of the utility model.
Embodiment
With reference to Fig. 1~Fig. 2, a kind of waste heat secondary recovery structure of heat pump drier, includes heat pump main frame, the heat pump
Host is provided with outdoor evaporator 12 and indoor condenser 13, and the outdoor evaporator 12 is provided with the first wind turbine 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, removes condensed water using water knockout drum 4, reduces the condensation water quantity for getting in condenser 13, reduces condensed water to indoor cold
The influence of the fin endothermic effect of condenser 13, improves the service life of indoor condenser 13；The import arrangement of the cold air duct
In the outside of outdoor evaporator 12, the inlet side of the indoor condenser 13 of outlet direction of the cold air duct.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 wind, so that the material to be dried being placed in hothouse 2 removes moisture, completes 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 the damp-heat air that drying operation produces away, and outdoor evaporator 12 is blowed to by the hot-air channel of heat exchanger 3, outdoor
For cold wind by the indoor condenser 13 of cold air duct flow direction of heat exchanger 3, cold wind and damp-heat air carry out hot friendship 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 wind turbine 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 wind that is internally formed of the heat exchange copper tube leads to
Road, the exterior of the heat exchange copper tube form cold air duct.Preferably, the heat exchange copper tube is arranged to multiple rows of, and adjacent two rows are changed
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.
Using heat exchange fin, either cold wind and damp-heat air are separated heat exchange fin or heat exchange to heat exchanger 3 by heat exchange copper tube
The heat conductivility of copper pipe is superior to be conducive 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, keep the cleaning of heat exchanger 3, improve the cleanliness factor into the hot wind of hothouse 2.
The better embodiment of the above, simply the utility model, but the utility model is not limited to above-mentioned reality
Example is applied, as long as it reaches the technique effect of the utility model with any same or similar means, should all fall into the utility model
Within protection domain.
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
It is useful for taking away the induced draft fans (31) of the damp-heat air of hothouse, 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, adjacent two rows of 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 multiple rows of and adjacent two rows of heat exchange copper tube interlaced arrangements.
8. according to a kind of waste heat secondary recovery structure of any 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 |
|---|---|---|---|
| CN201721148262.8U CN207317477U (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 |
|---|---|---|---|
| CN201721148262.8U CN207317477U (en) | 2017-09-07 | 2017-09-07 | A kind of waste heat secondary recovery structure of heat pump drier |
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| CN207317477U true CN207317477U (en) | 2018-05-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560416A (en) * | 2017-09-07 | 2018-01-09 | 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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2017
- 2017-09-07 CN CN201721148262.8U patent/CN207317477U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560416A (en) * | 2017-09-07 | 2018-01-09 | 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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