CN204694014U - Compressor sensible heat is utilized again to improve the drying unit of heat pump heat supply temperature - Google Patents
Compressor sensible heat is utilized again to improve the drying unit of heat pump heat supply temperature Download PDFInfo
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- CN204694014U CN204694014U CN201520189776.2U CN201520189776U CN204694014U CN 204694014 U CN204694014 U CN 204694014U CN 201520189776 U CN201520189776 U CN 201520189776U CN 204694014 U CN204694014 U CN 204694014U
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- heat
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- sensible heat
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- temperature
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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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Abstract
A kind of drying unit utilizing compressor sensible heat again to improve heat pump heat supply temperature disclosed in the utility model, comprise compressor (1), water-cooled condenser (3), expansion valve (4), axial flow blower (5) and wind-cooled evaporator (6) and sensible heat recoverer (2), described sensible heat recoverer (2) is serially connected between described compressor (1) and water-cooled condenser (3), thus, form two heat outputs, i.e. temperature end heat output, is exported by sensible heat recoverer (2); Low-temperature end heat output, is exported by water-cooled condenser (3).This device adopts common air-conditioning compressor just can meet the high temperature demands of drying materials, greatly reduce the cost of heat pump drying device, and this device is provided with two heat outputs, can continuously for bakery provides the hot blast of 30 DEG C ~ 75 DEG C, do not need additionally to increase the non-economized such as electric heater, oil burning boiler auxiliary equipment, substantially increase the utilization rate of heat pump drying device, effectively reduce the invest and operating cost of system, further show the advantage of heat pump drying device energy-conserving and environment-protective.
Description
Technical field
The utility model relates to heat pump drying device technical field, and what relate generally to is a kind of drying unit utilizing compressor sensible heat again to improve heat pump heat supply temperature.
Background technology
Material is when drying, and the different baking stages needs different baking temperatures, and for tobacco flue-curing, tobacco leaf is at yellowing stage, and the dry-bulb temperature in bakery need remain on 34 ~ 42 DEG C; In the fixation stage, the dry-bulb temperature in bakery need remain on 46 ~ 54 DEG C; And in the final step in tobacco flue-curing stage, the dry-bulb temperature in bakery need maintain 68 DEG C, and baking time will keep 20 ~ 24 hours continuously, could general warranty baking quality of tobacco.
At present, carrying out drying unit to material is heat pump drying device mostly, generally adopt high temperature compressor to improve the output temperature of unit, by the exhaust sensible heat of compressor and latent heat being recovered in a condenser (heat output) simultaneously, namely unit only has a heat output, because this high temperature compressor continuous 20 ~ 24 hours or longer time can not provide the hot blast of 68 DEG C or higher temperature for bakery, therefore, also need to configure electric heater, the non-economized auxiliary equipment such as oil burning boiler meet the specific demand in material special baking stage, and increase the utilization rate that auxiliary equipment both can reduce heat pump drying device, system invest and operating cost can be increased again, even can bring pollution to surrounding environment, the advantage of heat pump energy-conserving environmental protection is not performed to ultimate attainment.
Summary of the invention
The object of the utility model technology is the deficiency for above-mentioned heat pump drying device, proposes a kind of drying unit utilizing compressor sensible heat again to improve heat pump heat supply temperature.What solve the existence of existing heat pump drying device only has the extra non-economized auxiliary equipment that increases of a heat output, need to meet the problem of drying materials demand, reach and improve heat pump drying device utilization rate, reduction system invest and operating cost, the object of energy-conserving and environment-protective.
The utility model realizes the technical scheme that above-mentioned purpose takes: a kind of drying unit utilizing compressor sensible heat again to improve heat pump heat supply temperature comprises compressor, water-cooled condenser, expansion valve, axial flow blower and wind-cooled evaporator and sensible heat recoverer, described sensible heat recoverer is serially connected between described compressor and water-cooled condenser, thus, form two heat outputs, namely temperature end heat output, is exported by sensible heat recoverer; Low-temperature end heat output, is exported by water-cooled condenser.
Compressor described in the utility model adopts common air-conditioning compressor.
Sensible heat recoverer described in the utility model reclaims the sensible heat in compressor high-temperature exhaust air, and produce the high-temperature-hot-water of 75 ~ 80 DEG C, the refrigerant condition at its refrigerant exit place is still gaseous state.
Water-cooled condenser described in the utility model is connected with the refrigerant exit of sensible heat recoverer, reclaiming, producing the hot blast of 30 DEG C ~ 75 DEG C to entering high-temperature gas refrigerant in it.
The utility model, owing to being connected in series sensible heat recoverer between compressor and water-cooled condenser, forms two heat outputs, i.e. temperature end heat output, is exported the high-temperature-hot-water of 75 ~ 80 DEG C, can meet the high temperature demands in the drying materials stage by sensible heat recoverer; Low-temperature end heat output, is exported the hot blast of 30 DEG C ~ 75 DEG C continuously by water-cooled condenser, meet the low temperature in the drying materials stage and middle temperature demand.Due to compressor employing is common compressor of air conditioner, and it is lower by about 30% than adopting the conventional heat pump drying unit cost of high temperature compressor to make complete machine cost, greatly reduces the cost of heat pump drying device.Do not need additionally to increase the non-economized such as electric heater, oil burning boiler auxiliary equipment, substantially increase the utilization rate of heat pump drying device, effectively reduce the invest and operating cost of system, further shown the advantage of heat pump drying device energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present utility model.
In figure: 1, compressor, 2, sensible heat recoverer, 3, water-cooled condenser, 4, expansion valve, 5, axial flow blower, 6, wind-cooled evaporator.
Detailed description of the invention
By reference to the accompanying drawings, embodiment of the present utility model is provided as follows:
As shown in Figure 1: a kind of drying unit utilizing compressor sensible heat again to improve heat pump heat supply temperature described in the present embodiment, comprise compressor 1, sensible heat recoverer 2, water-cooled condenser 3, expansion valve 4, axial flow blower 5 and wind-cooled evaporator 6, what described compressor 1 adopted is common compressor of air conditioner, and it is lower by about 30% than adopting the conventional heat pump drying unit cost of high temperature compressor to make complete machine cost.Be serially connected with sensible heat recoverer 2 at compressor 1 high-temperature gas refrigerant exit end, generally adopt plate type heat exchanger; Sensible heat recoverer 2 is connected in series water-cooled condenser 3, generally adopts shell and tube exchanger.Described sensible heat recoverer 2 is the first heat output (temperature end) of this device, be serially connected between compressor 1 and water-cooled condenser 3, sensible heat in recovery compressor 1 high-temperature exhaust air (generally all more than 100 DEG C), produce the high-temperature-hot-water of 75 ~ 80 DEG C, meet the high temperature demands in the drying materials stage, the refrigerant condition at its refrigerant exit place is still gaseous state (temperature is below 100 DEG C).Described water-cooled condenser 3 is the second heat output (low-temperature end) of this device, is connected with the refrigerant exit of sensible heat recoverer 2, can continuously for bakery provides the hot blast of 30 DEG C ~ 75 DEG C.The expansion valve 4 for reducing pressure by regulating flow, adjusting refrigerant flow rate is serially connected with between described water-cooled condenser 3 and wind-cooled evaporator 6, described wind-cooled evaporator 6 absorbs a large amount of air heat energies by the booster action of axial flow blower 5 from surrounding environment, and the refrigerant exit of wind-cooled evaporator 6 is connected with the air entry of compressor 1.
The operation principle of the present embodiment is as follows: the high pressure gaseous refrigerant that compressor 1 is discharged enters in sensible heat recoverer 2, is released in by part sensible heat in the recirculated water of sensible heat recoverer 2, exports the high-temperature-hot-water of 75 ~ 80 DEG C, high-temperature-hot-water is stored, and when baking needs high temperature, high-temperature-hot-water is admitted to bakery, through heat exchange for bakery provides high temperature demands, high-temperature gas refrigerant temperature becomes middle high-temperature gas refrigerant after reducing and enters into water-cooled condenser 3 from the refrigerant exit of sensible heat recoverer 2, and water-cooled condenser exports the hot water of 55 DEG C ~ 65 DEG C, for bakery provides middle requirement of low temperature, middle high-temperature gas refrigerant becomes liquid refrigerants and discharges water-cooled condenser 3 in water-cooled condenser 3 after condensation heat release, wind-cooled evaporator 6 is entered by becoming the vaporific liquid refrigerants of low-temp low-pressure after expansion valve 4 reducing pressure by regulating flow, wind-cooled evaporator 6 absorbs a large amount of air heat energies by the booster action of axial flow blower 5 from surrounding environment to be made the low-temp low-pressure liquid refrigerants in wind-cooled evaporator 6 evaporate gasification to become low-temp low-pressure gaseous coolant and enter compressor 1, low-temp low-pressure gaseous coolant becomes high pressure gaseous refrigerant and discharges compressor 1 after compressor 1 compresses, so complete one and heat circulation.
By being connected in series the above measure of sensible heat recoverer 2 and water-cooled condenser 3 heat exchanger, make sensible heat recoverer 2 directly can reclaim sensible heat in compressor 1 high-temperature exhaust air (generally all more than 100 DEG C), this partial heat accounts for 15% ~ 20% of compressor 1 high-temperature exhaust air total amount of heat, the high-temperature-hot-water of 75 ~ 80 DEG C can be produced, meet the high temperature demands in the drying materials stage; All the other heats then enter into water-cooled condenser 3 and are released in recirculated water, and the temperature of recirculated water can reach 65 DEG C, and this part hot water can meet low temperature in the drying materials stage and middle temperature demand.This device adopts common air-conditioning compressor just can meet the different temperatures demand of material in different phase, it is lower by about 30% than adopting the conventional heat pump drying unit cost of high temperature compressor to make complete machine cost, and this device is provided with two heat outputs, can continuously for bakery provides the hot blast of 30 DEG C ~ 75 DEG C, do not need additionally to increase the non-economized such as electric heater, oil burning boiler auxiliary equipment, substantially increase the utilization rate of heat pump drying device, effectively reduce the invest and operating cost of system, further show the advantage of heat pump drying device energy-conserving and environment-protective.
Claims (4)
1. the drying unit utilizing compressor sensible heat again to improve heat pump heat supply temperature, comprise compressor (1), water-cooled condenser (3), expansion valve (4), axial flow blower (5) and wind-cooled evaporator (6), it is characterized in that: also comprise sensible heat recoverer (2), this sensible heat recoverer (2) is serially connected between described compressor (1) and water-cooled condenser (3), thus, form two heat outputs, i.e. temperature end heat output, exported by sensible heat recoverer (2); Low-temperature end heat output, is exported by water-cooled condenser (3).
2. a kind of drying unit utilizing compressor sensible heat again to improve heat pump heat supply temperature according to claim 1, is characterized in that: described compressor (1) adopts common air-conditioning compressor.
3. a kind of drying unit utilizing compressor sensible heat again to improve heat pump heat supply temperature according to claim 1, it is characterized in that: described sensible heat recoverer (2) reclaims the sensible heat in compressor (1) high-temperature exhaust air, produce the high-temperature-hot-water of 75 ~ 80 DEG C, the refrigerant condition at its refrigerant exit place is still gaseous state.
4. a kind of drying unit utilizing compressor sensible heat again to improve heat pump heat supply temperature according to claim 1, it is characterized in that: described water-cooled condenser (3) is connected with the refrigerant exit of sensible heat recoverer (2), reclaiming entering high-temperature gas refrigerant in it, producing the hot blast of 30 DEG C ~ 75 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520189776.2U CN204694014U (en) | 2015-04-01 | 2015-04-01 | Compressor sensible heat is utilized again to improve the drying unit of heat pump heat supply temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520189776.2U CN204694014U (en) | 2015-04-01 | 2015-04-01 | Compressor sensible heat is utilized again to improve the drying unit of heat pump heat supply temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204694014U true CN204694014U (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520189776.2U Expired - Fee Related CN204694014U (en) | 2015-04-01 | 2015-04-01 | Compressor sensible heat is utilized again to improve the drying unit of heat pump heat supply temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204694014U (en) |
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2015
- 2015-04-01 CN CN201520189776.2U patent/CN204694014U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20190401 |
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| CF01 | Termination of patent right due to non-payment of annual fee |