CN110243105A - Heated at constant temperature type air source heat pump Drying unit - Google Patents
Heated at constant temperature type air source heat pump Drying unit Download PDFInfo
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- CN110243105A CN110243105A CN201910510651.8A CN201910510651A CN110243105A CN 110243105 A CN110243105 A CN 110243105A CN 201910510651 A CN201910510651 A CN 201910510651A CN 110243105 A CN110243105 A CN 110243105A
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- air
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- heating agent
- inlet
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/003—Supply-air or gas filters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of heated at constant temperature type air source heat pump Drying units, are related to dryer technical field.The present invention includes air energy thermal pump assembly and dryer, air energy thermal pump assembly is equipped with refrigerant air inlet and in being connected to a blast pipe on refrigerant air inlet, blast pipe is equipped with an air heater baskets, an air filter is also connected at the port of blast pipe, refrigerant discharge pipe on air energy thermal pump assembly；Air energy thermal pump assembly is equipped with heating agent air outlet and heating agent air inlet；Dryer is equipped with hot wind inlet and waste gas outlet；It is communicated with a first pipe between hot wind inlet and heating agent air outlet, a second pipe is communicated between waste gas outlet and heating agent air inlet.The present invention carries out constant temperature drying to the product of dryer by being regulated and controled by the realization of temperature-detecting device, gas flow rate detection device, solenoid valve and air heater baskets to position gas temperature each in air source heat pump Drying unit, to realize.
Description
Technical field
The invention belongs to dryer technical fields, more particularly to a kind of heated at constant temperature type air source heat pump Drying unit.
Background technique
Drying exists in many fields, such as agricultural and sideline product, medicinal material, tobacco, timber, plated item drying, baking traditional at present
Dry mode consumes energy greatly, there is pollution.Even if using air source heat pump drying mode when, since the hot blast temperature that dryer provides is high
(80 DEG C or so), when being heated using natural environment heat source, pressure ratio is usually larger, since day and night temperature variation leads to nature
The temperature change of Environmental Heat Source is easy to cause the fluctuation of the hot blast temperature for supplying dryer larger, influences drying rate and effect
Fruit, therefore the purpose of the present invention is to provide a kind of heated at constant temperature type air source heat pump Drying units.
Summary of the invention
The purpose of the present invention is to provide a kind of heated at constant temperature type air source heat pump Drying units, by being filled by temperature detection
It sets, gas flow rate detection device, solenoid valve and air heater baskets are realized to position gas temperature each in air source heat pump Drying unit
Degree is regulated and controled, and carries out constant temperature drying to the product of dryer to realize.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions:
The present invention is a kind of heated at constant temperature type air source heat pump Drying unit, including air energy thermal pump assembly and dryer,
The air energy thermal pump assembly is equipped with refrigerant air inlet and in being connected to a blast pipe, the blast pipe on the refrigerant air inlet
An air heater baskets are equipped with, are also connected with an air filter, the air energy thermal pump machine at the port of the blast pipe
Refrigerant discharge pipe in group；
The air energy thermal pump assembly is equipped with heating agent air outlet and heating agent air inlet；
The dryer is equipped with hot wind inlet and waste gas outlet；
A first pipe, the waste gas outlet and heating agent air inlet are communicated between the hot wind inlet and heating agent air outlet
Between be communicated with a second pipe；
The air inlet of the blast pipe is equipped with one first temperature-detecting device, and the refrigerant of the air energy thermal pump assembly is entered the wind
A second temperature detection device is equipped at mouthful；A first gas flow monitor is equipped in the blast pipe；
A third temperature-detecting device, the heating agent air inlet are equipped at the heating agent air outlet of the air energy thermal pump assembly
Place is equipped with one the 4th temperature-detecting device, and the heating agent air outlet or heating agent air inlet of the air energy thermal pump assembly are equipped with one the
Two gas flow rate detection devices；
First temperature-detecting device, second temperature detection device, the 4th temperature-detecting device, the inspection of first gas flow velocity
It surveys device, second gas flow monitor and third temperature-detecting device and is electrically connected with a processor；
The first pipe is equipped with one for adjusting the first flow regulating device of hot wind flow velocity, sets on the blast pipe
There is the second flow regulating device for adjusting refrigerant induction air flow ratio；
The signal output end of the processor is connected with second flow regulating device and first flow regulating device respectively.
Further, a cooling device is additionally provided on the blast pipe, the cooling device is connect with processor.
Further, a stove pipe is communicated between the first pipe and air heater baskets, on the stove pipe
Equipped with one first solenoid valve；An exhaust pipe is communicated between the air heater baskets and second pipe, the exhaust pipe is equipped with
One second solenoid valve, is communicated with an air supply pipe between the second pipe and stove pipe, the air supply pipe is equipped with a third
Solenoid valve；
Wherein, the junction of the exhaust pipe and second pipe is located at heating agent air inlet and air supply pipe is connect with second pipe
Between；
The third solenoid valve, the first solenoid valve are connected with second solenoid valve uniform treatment device.
Further, the second pipe is equipped with a deduster.
Further, first temperature-detecting device, second temperature detection device, the 4th temperature-detecting device and third
Temperature-detecting device is a temperature sensor.
Further, the air heater baskets include a heating muff for being socketed in blast pipe, are set on the heating muff
There are inlet and outlet.
Further, the cooling device includes a cooling collar being socketed on blast pipe, is set on the cooling collar
There are a water outlet and water inlet, a water pump is connected on the water inlet, the water outlet of the water pump is connected with flow meters, institute
It states flowmeter and water pump is connected with processor.
A kind of constant-temperature control method of heated at constant temperature type air source heat pump Drying unit includes:
T1 ± N DEG C step 1, setting of refrigerant inlet air temperature, are arranged T2 ± M DEG C of heating agent leaving air temp；
Step 2, starting air energy thermal pump assembly, detecting inlet air temperature by the first temperature-detecting device is T3, by the
Whether it is T4 that two temperature-detecting devices, which detect inlet air temperature, judge T3 in T1 ± N DEG C；If T3 is greater than T1+N, then follow the steps
3；If T3 is less than T1-N, 4 are thened follow the steps；
Step 3, starting cooling device adjust inlet air temperature satisfaction setting temperature by the water speed that goes out that processor controls water pump
T1 ± N DEG C of degree；
Step 4 opens the first solenoid valve and second solenoid valve, using air heater baskets carry out to the gas on blast pipe into
Row heating passes through the 4th temperature detection when second temperature detection device detection inlet air temperature T4 meets T1 ± N DEG C of set temperature
Device detects the inlet air temperature T5 of dryer, makes T5 meet T2 ± M DEG C set by adjusting refrigerant intake velocity.
The invention has the following advantages:
1, the present invention passes through by the realization pair of temperature-detecting device, gas flow rate detection device, solenoid valve and air heater baskets
Each position gas temperature is regulated and controled in air source heat pump Drying unit, carries out constant temperature baking to the product of dryer to realize
It is dry, improve drying efficiency and effect.
2, the present invention is heated using cold media gas of the heat source gas in system to air energy thermal pump assembly, sufficiently benefit
With the energy in system, there is the advantages of energy conservation and environmental protection, raising energy utilization rate.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is heated at constant temperature type air source heat pump Drying unit structural schematic diagram of the present invention；
Fig. 2 is constant-temperature heating system control structure figure of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " aperture ", "upper", "lower", " thickness ", "top", " in ",
Indicating positions or the positional relationship such as " length ", "inner", " surrounding ", are merely for convenience of description of the present invention and simplification of the description, without
It is that the component of indication or suggestion meaning or element must have a particular orientation, is constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.
Embodiment 1
It please refers to shown in Fig. 1-2, the present invention is a kind of heated at constant temperature type air source heat pump Drying unit, including air energy thermal
Pump assembly 1 and dryer 2, air energy thermal pump assembly 1 are equipped with refrigerant air inlet and in being connected to a blast pipe on refrigerant air inlet
11, blast pipe 11 is equipped with an air heater baskets 3, is also connected with an air filter 5, air energy at the port of blast pipe 11
Refrigerant discharge pipe 14 in heat pump unit 1；
Air energy thermal pump assembly 1 is equipped with heating agent air outlet and heating agent air inlet 12；
Dryer 2 is equipped with hot wind inlet and waste gas outlet；
A first pipe 13 is communicated between hot wind inlet and heating agent air outlet, between waste gas outlet and heating agent air inlet 12
It is communicated with a second pipe 21；
The air inlet of blast pipe 11 is equipped with one first temperature-detecting device, the refrigerant air inlet of air energy thermal pump assembly 1
Equipped with a second temperature detection device；A first gas flow monitor is equipped in blast pipe 11；
It is equipped with a third temperature-detecting device at the heating agent air outlet of air energy thermal pump assembly 1, is set at heating agent air inlet 12
There is one the 4th temperature-detecting device, is equipped with one second gas at the heating agent air outlet or heating agent air inlet 12 of air energy thermal pump assembly 1
Body flow monitor；
First temperature-detecting device, second temperature detection device, the 4th temperature-detecting device, first gas flow rate detection dress
It sets, second gas flow monitor and third temperature-detecting device are electrically connected with a processor；
First pipe 13 is equipped with one for adjusting the first flow regulating device of hot wind flow velocity, and blast pipe 11, which is equipped with, to be used
In the second flow regulating device for adjusting refrigerant induction air flow ratio；
The signal output end of processor is connected with second flow regulating device and first flow regulating device respectively.
Preferably, a cooling device 4 is additionally provided on blast pipe 11, cooling device 4 is connect with processor.
Preferably, a stove pipe 31 is communicated between first pipe 13 and air heater baskets 3, stove pipe 31 is equipped with
One first solenoid valve 32；It is communicated with an exhaust pipe 35 between air heater baskets 3 and second pipe 21, exhaust pipe 35 is equipped with one the
Two solenoid valves 36, are communicated with an air supply pipe 33 between second pipe 21 and stove pipe 31, air supply pipe 33 is equipped with third electricity
Magnet valve 34；
Wherein, the junction of exhaust pipe 35 and second pipe 21 is located at heating agent air inlet 12 and air supply pipe 33 and second pipe
Between 21 junctions；
Third solenoid valve 34, the first solenoid valve 32 are connected with 36 uniform treatment device of second solenoid valve.
Preferably, second pipe 21 is equipped with a deduster 22.
Preferably, the first temperature-detecting device, second temperature detection device, the 4th temperature-detecting device and the inspection of third temperature
Surveying device is a temperature sensor.
Preferably, cooling device 4 includes a cooling collar being socketed on blast pipe 11, and cooling collar is equipped with a water outlet
Mouthful and water inlet, be connected with a water pump on water inlet, the water outlet of water pump is connected with flow meters, flowmeter and water pump with place
Device is managed to be connected.
A kind of constant-temperature control method of heated at constant temperature type air source heat pump Drying unit includes:
T1 ± N DEG C step 1, setting of refrigerant inlet air temperature, are arranged T2 ± M DEG C of heating agent leaving air temp；
Step 2, starting air energy thermal pump assembly 1, detecting inlet air temperature by the first temperature-detecting device is T3, by the
Whether it is T4 that two temperature-detecting devices, which detect inlet air temperature, judge T3 in T1 ± N DEG C；If T3 is greater than T1+N, then follow the steps
3；If T3 is less than T1-N, 4 are thened follow the steps；
Step 3, starting cooling device 4 adjust inlet air temperature satisfaction setting by the water speed that goes out that processor controls water pump
T1 ± N DEG C of temperature；
Step 4 opens the first solenoid valve 32 and second solenoid valve 36, is carried out using air heater baskets 3 on blast pipe 11
Gas heated, when second temperature detection device detection inlet air temperature T4 meet T1 ± N DEG C of set temperature when, pass through the 4th
Temperature-detecting device detects the inlet air temperature T5 of dryer 2, makes T5 full by adjusting the flow velocity of drying system inner heat source gas
T2 ± M DEG C set enough.
Embodiment 2
It please refers to shown in Fig. 1-2, the present invention is a kind of heated at constant temperature type air source heat pump Drying unit, including air energy thermal
Pump assembly 1 and dryer 2, air energy thermal pump assembly 1 are equipped with refrigerant air inlet and in being connected to a blast pipe on refrigerant air inlet
11, blast pipe 11 is equipped with an air heater baskets 3, is also connected with an air filter 5, air energy at the port of blast pipe 11
Refrigerant discharge pipe 14 in heat pump unit 1；
Air energy thermal pump assembly 1 is equipped with heating agent air outlet and heating agent air inlet 12；
Dryer 2 is equipped with hot wind inlet and waste gas outlet；
A first pipe 13 is communicated between hot wind inlet and heating agent air outlet, between waste gas outlet and heating agent air inlet 12
It is communicated with a second pipe 21；
The air inlet of blast pipe 11 is equipped with one first temperature-detecting device, the refrigerant air inlet of air energy thermal pump assembly 1
Equipped with a second temperature detection device；A first gas flow monitor is equipped in blast pipe 11；
It is equipped with a third temperature-detecting device at the heating agent air outlet of air energy thermal pump assembly 1, is set at heating agent air inlet 12
There is one the 4th temperature-detecting device, is equipped with one second gas at the heating agent air outlet or heating agent air inlet 12 of air energy thermal pump assembly 1
Body flow monitor；
First temperature-detecting device, second temperature detection device, the 4th temperature-detecting device, first gas flow rate detection dress
It sets, second gas flow monitor and third temperature-detecting device are electrically connected with a processor；
First pipe 13 is equipped with one for adjusting the first flow regulating device of hot wind flow velocity, and blast pipe 11, which is equipped with, to be used
In the second flow regulating device for adjusting refrigerant induction air flow ratio；
The signal output end of processor is connected with second flow regulating device and first flow regulating device respectively.
Preferably, a cooling device 4 is additionally provided on blast pipe 11, cooling device 4 is connect with processor.
Preferably, a stove pipe 31 is communicated between first pipe 13 and air heater baskets 3, stove pipe 31 is equipped with
One first solenoid valve 32；It is communicated with an exhaust pipe 35 between air heater baskets 3 and second pipe 21, exhaust pipe 35 is equipped with one the
Two solenoid valves 36, are communicated with an air supply pipe 33 between second pipe 21 and stove pipe 31, air supply pipe 33 is equipped with third electricity
Magnet valve 34；
Wherein, the junction of exhaust pipe 35 and second pipe 21 is located at heating agent air inlet 12 and air supply pipe 33 and second pipe
Between 21 junctions；
Third solenoid valve 34, the first solenoid valve 32 are connected with 36 uniform treatment device of second solenoid valve.
Preferably, second pipe 21 is equipped with a deduster 22.
Preferably, the first temperature-detecting device, second temperature detection device, the 4th temperature-detecting device and the inspection of third temperature
Surveying device is a temperature sensor.
Preferably, cooling device 4 includes a cooling collar being socketed on blast pipe 11, and cooling collar is equipped with a water outlet
Mouthful and water inlet, be connected with a water pump on water inlet, the water outlet of water pump is connected with flow meters, flowmeter and water pump with place
Device is managed to be connected.
A kind of constant-temperature control method of heated at constant temperature type air source heat pump Drying unit includes:
T1 ± N DEG C step 1, setting of refrigerant inlet air temperature, are arranged T2 ± M DEG C of heating agent leaving air temp；
Step 2, starting air energy thermal pump assembly 1, detecting inlet air temperature by the first temperature-detecting device is T3, by the
Whether it is T4 that two temperature-detecting devices, which detect inlet air temperature, judge T3 in T1 ± N DEG C；If T3 is greater than T1+N, then follow the steps
3；If T3 is less than T1-N, 4 are thened follow the steps；
Step 3, starting cooling device 4 adjust inlet air temperature satisfaction setting by the water speed that goes out that processor controls water pump
T1 ± N DEG C of temperature；
Step 4 opens third solenoid valve 34 and second solenoid valve 36, at this time the hot air source pair by generating in drying system
The cold media gas of inlet end is heated, when second temperature detection device detection inlet air temperature T4 meets T1 ± N DEG C of set temperature
When, the inlet air temperature T5 of dryer 2 is detected, by the 4th temperature-detecting device by adjusting the stream of drying system inner heat source gas
Speed makes T5 meet T2 ± M DEG C set；The heat source gas temperature of the drying machine 2 detected simultaneously according to third temperature detection
T6 adjusts the valve degree of third solenoid valve 34 so that inlet air temperature T4 meets T1 ± N DEG C of set temperature according to the numerical value of T6.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (4)
1. heated at constant temperature type air source heat pump Drying unit, including air energy thermal pump assembly (1) and dryer (2), feature exists
Refrigerant air inlet is equipped in: the air energy thermal pump assembly (1) and in being connected to a blast pipe (11) on the refrigerant air inlet,
The blast pipe (11) is equipped with an air heater baskets (3), is also connected with an air filtration at the port of the blast pipe (11)
Device (5), refrigerant discharge pipe (14) on the air energy thermal pump assembly (1)；
The air energy thermal pump assembly (1) is equipped with heating agent air outlet and heating agent air inlet (12)；
The dryer (2) is equipped with hot wind inlet and waste gas outlet；
A first pipe (13), the waste gas outlet and heating agent air inlet are communicated between the hot wind inlet and heating agent air outlet
(12) second pipe (21) are communicated between；
The air inlet of the blast pipe (11) is equipped with one first temperature-detecting device, the refrigerant of the air energy thermal pump assembly (1)
Air inlet is equipped with a second temperature detection device；A first gas flow monitor is equipped in the blast pipe (11)；
A third temperature-detecting device, the heating agent air inlet are equipped at the heating agent air outlet of the air energy thermal pump assembly (1)
(12) one the 4th temperature-detecting device, the heating agent air outlet or heating agent air inlet of the air energy thermal pump assembly (1) are equipped at
(12) a second gas flow monitor is equipped at；
First temperature-detecting device, second temperature detection device, the 4th temperature-detecting device, first gas flow rate detection dress
It sets, second gas flow monitor and third temperature-detecting device are electrically connected with a processor；
The first pipe (13) is equipped with one for adjusting the first flow regulating device of hot wind flow velocity, the blast pipe (11)
It is equipped with the second flow regulating device for adjusting refrigerant induction air flow ratio；
The signal output end of the processor is connected with second flow regulating device and first flow regulating device respectively.
2. a kind of heated at constant temperature type air source heat pump Drying unit according to claim 1, which is characterized in that the air inlet
It is additionally provided with a cooling device (4) on pipe (11), the cooling device (4) connect with processor.
3. a kind of heated at constant temperature type air source heat pump Drying unit according to claim 1, which is characterized in that described first
It is communicated between pipeline (13) and air heater baskets (3) stove pipe (31), the stove pipe (31) is equipped with one first
Solenoid valve (32)；An exhaust pipe (35), the exhaust pipe are communicated between the air heater baskets (3) and second pipe (21)
(35) second solenoid valve (36) are equipped with, are communicated with an air supply pipe between the second pipe (21) and stove pipe (31)
(33), the air supply pipe (33) is equipped with a third solenoid valve (34)；
Wherein, the junction of the exhaust pipe (35) and second pipe (21) be located at heating agent air inlet (12) and air supply pipe (33) and
Between second pipe (21) junction；
The third solenoid valve (34), the first solenoid valve (32) are connected with second solenoid valve (36) uniform treatment device.
4. a kind of heated at constant temperature type air source heat pump Drying unit according to claim 1, which is characterized in that described second
Pipeline (21) is equipped with a deduster (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910510651.8A CN110243105B (en) | 2019-06-13 | 2019-06-13 | Constant temperature heating type air source heat pump drying unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910510651.8A CN110243105B (en) | 2019-06-13 | 2019-06-13 | Constant temperature heating type air source heat pump drying unit |
Publications (2)
| Publication Number | Publication Date |
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| CN110243105A true CN110243105A (en) | 2019-09-17 |
| CN110243105B CN110243105B (en) | 2020-12-11 |
Family
ID=67886984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910510651.8A Active CN110243105B (en) | 2019-06-13 | 2019-06-13 | Constant temperature heating type air source heat pump drying unit |
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| Country | Link |
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| CN (1) | CN110243105B (en) |
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| CN112191471A (en) * | 2020-10-20 | 2021-01-08 | 江苏凯伦建材股份有限公司 | Roller coating method capable of increasing roller coating covering thickness |
| CN112857022A (en) * | 2021-03-29 | 2021-05-28 | 河北博志热能设备有限公司 | Heating assembly device for improving air outlet temperature of heat pump drying unit and control method thereof |
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| CN112191471A (en) * | 2020-10-20 | 2021-01-08 | 江苏凯伦建材股份有限公司 | Roller coating method capable of increasing roller coating covering thickness |
| CN112857022A (en) * | 2021-03-29 | 2021-05-28 | 河北博志热能设备有限公司 | Heating assembly device for improving air outlet temperature of heat pump drying unit and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110243105B (en) | 2020-12-11 |
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