CN109282587A - A kind of heat pump dryer of cooling and dehumidifying evaporator symmetric parallel arrangement - Google Patents
A kind of heat pump dryer of cooling and dehumidifying evaporator symmetric parallel arrangement Download PDFInfo
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- CN109282587A CN109282587A CN201811175404.9A CN201811175404A CN109282587A CN 109282587 A CN109282587 A CN 109282587A CN 201811175404 A CN201811175404 A CN 201811175404A CN 109282587 A CN109282587 A CN 109282587A
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- heat pump
- air
- evaporator
- pump unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
-
- 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
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
- F26B21/086—Humidity by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The present invention relates to a kind of heat pump dryers of cooling and dehumidifying evaporator symmetric parallel arrangement.It include: that insulating layer, air filter, air-duct clapboard, evaporator with heat pump blower, low-pressure condenser, heat pump air inlet/outlet partition, regenerator, heat pump unit symmetrically divide wind partition, press and refrigeration accessory assembly section, drip tray, evaporator group, hothouse, condensation fan, condenser group, new air door and heat extraction air door.Heat pump unit unit is made of three or three or more heat pump units, and each heat pump unit includes compressor, evaporator, condenser, expansion valve, device for drying and filtering and fluid reservoir.Air supply mode can be intermediate air inlet or two sides air inlet, two parallel connections are arranged in evaporator in each heat pump unit, evaporator in i.e. each heat pump unit is all made of the mode of A, B two identical evaporator parallel connections and heat pump unit is connected, and is arranged in two symmetrical air conditioner units.Have the advantages that air-supply is uniform, operational reliability is high.
Description
Technical field
The present invention relates to a kind of for dry heat pump dryer, belongs to heat pump drying technology field.
Background technique
The processing of food includes all multi-process such as sorting, crushing, separation, mixing, sterilization, refrigeration and drying to raw material,
And drying process is a key link for guaranteeing food quality.Food is dried, microorganism can be prevented in food
In breeding while the volume and weight of food can be reduced convenient for storage, reduce transportation cost.Traditional drying means is benefit
The high-temperature gas dried foods or natural air drying for utilizing combustion of fossil fuel to generate with coal-burning boiler mode.This method pollution is tight
Weight and low efficiency, are unfavorable for energy conservation and environmental protection.Material needs in hemi-closure space, causes energy waste.
Through retrieving, a kind of 201720268859.X's entitled " dehumidifying heat pump dryer " of Chinese patent announcement is practical new
Type patent has the advantages that air-supply equably, but the single energy consumption of heat pump system is higher, is also not suitable for more demanding in drying temperature
When use.A kind of invention for 201410542295.5 entitled " north dedicated drying heat pump units " that Chinese patent is announced
Patent discloses the Drying unit to be dehumidified with two groups of heat pump systems, has the advantages that suitable low operating temperatures, still, this invention
For patented technology due to setting position, occupied area is larger, and also without energy recycle device, efficiency is not high.
Summary of the invention
Task of the invention lies in disadvantage existing in the prior art is overcome, construct it is a kind of it is novel have it is easy to operate,
Convenient temperature control, it is energy-efficient, safe and reliable, compact-sized the features such as heat pump dryer, the cooling and dehumidifying evaporator is symmetrically simultaneously
Connection arrangement heat pump dryer be applicable to high temperature drying process food or medicinal material drying and other with same dried work
The drying production process of skill.
To realize invention task, technical solution is:
A kind of heat pump dryer of cooling and dehumidifying evaporator symmetric parallel arrangement include: insulating layer, air filter, air duct every
Plate, evaporator with heat pump blower, low-pressure condenser, heat pump air inlet/outlet partition, regenerator, heat pump unit symmetrically divide wind partition, press
And refrigeration accessory assembly section, drip tray, evaporator group, hothouse, condensation fan, condenser group, new air door and heat extraction air door.Heat
Pump unit unit is made of three or three or more heat pump units, and each heat pump unit includes compressor, evaporator, condensation
Device, expansion valve, device for drying and filtering and fluid reservoir.Air supply mode can be intermediate air inlet or two sides are entered the wind, in each heat pump unit
Evaporator two parallel connections are set, i.e., the evaporator in each heat pump unit is all made of the side of A, B two identical evaporator parallel connections
Formula is connected with heat pump unit, is arranged in two symmetrical air conditioner units, the A evaporator of each heat pump unit according to
It corresponds to condensing pressure, and successively row is in parallel for A evaporator group, each heat pump on the flow direction of cooled air from low to high
It is B that the B evaporator of unit corresponds to condensing pressure and successively arrange on the flow direction of cooled air in parallel from low to high according to it
Evaporator group.Regenerator is installed for recycling in return air in the heat pump dryer of cooling and dehumidifying evaporator symmetric parallel arrangement
Heat reaches partially recycled energy purpose, and reduces the air themperature into evaporator group, reduces dehumidification cooling air institute
Refrigeration duty is needed, the efficiency of heat pump unit unit is improved.Condenser in heat pump unit unit divides low-pressure condenser and elevated pressures
Condenser composition condenser group, two parts are arranged apart, low-pressure condenser be the corresponding heat pump list of the minimum evaporator of pressure
Condenser in member is placed in the air duct between regenerator and evaporator with heat pump blower；Condenser group is placed in hothouse and send
Before air port, the partial air of air and hothouse without dehumidifying after the dehumidifying of evaporator with heat pump blower is heated, is guaranteed
The requirement of dry materials air quantity, condenser group is cooling with enough air quantity, while guaranteeing drying effect each heat pump list
Lower refrigerant condensing pressure is obtained in member, to improve performance coefficient of heat pump.It is higher or produce in dry indoor cleaning degree
When raw dust is not enough to block condenser group, the air for entering condenser group from hothouse bypass can be without air filtration
Device directly enters condenser group from hothouse.According to the flow direction of air, regenerator is located at evaporator group and low-pressure condenser
Between, evaporator with heat pump blower is set between low-pressure condenser and evaporator group two parts.Cooling and dehumidifying evaporator is symmetrically simultaneously
The air treatment section for joining the heat pump dryer of arrangement is divided into left and right two parts, is arranged symmetrically, and saves space, and it is equal to reach two sides
The purpose of even air-supply.According to the humidity of processing material and quantity number and the height heat pump unit unit of required drying temperature can
It is whole in the heat pump dryer that cooling and dehumidifying evaporator symmetric parallel is arranged with setting three or three or more heat pump units
The heat pump dryer of a cooling and dehumidifying evaporator symmetric parallel arrangement is separated by by insulating layer and external environment.In regenerator and steaming
New air door is set on the air duct of non-dehumidified air between hair device group；Heat extraction air door is set at the top of hothouse, works as hothouse
When supply air temperature is excessively high, new air door and heat extraction air door are opened, extra heat dissipation into environment.
The heat pump dryer of the cooling and dehumidifying evaporator symmetric parallel arrangement, air handling process are as follows:
Heat pump condenser is used for the air after heating and dehumidification, so that its temperature is reached dry required technique requirement, is sent by air outlet
Enter drying of the hothouse for material；Regenerator is sent into after the return air of hothouse first flows through air filter filtering sundries to return
Heat and dewing air cooling-down are received, is passed through using regenerator with return air progress heat exchange via after the dehumidifying of evaporator with heat pump group
Air is preheated after regenerator, and temperature increases, and is then fed into after condenser group further heats and is sent into hothouse by air outlet；?
Circulation air flowing during the entire process of, with air-duct clapboard and heat pump air inlet/outlet partition and heat pump unit symmetrically divide wind partition every
The access of air out is mutually blended with reducing the preceding air with after dehumidifying of dehumidifying, guarantees the correct flow direction of air, improve empty
Gas disposal efficiency.
The heat pump dryer of the cooling and dehumidifying evaporator symmetric parallel arrangement, it is characterised in that when being used for dry materials,
Air initially enters regenerator after material, and the air heat-exchange with after the dehumidifying of evaporator group has recycled the energy in return air,
The air themperature into evaporator group is reduced simultaneously, the load of the evaporator group of heat pump unit unit is reduced, improves heat
The efficiency of pump unit unit；The use of regenerator also improves supply air temperature, arranges cooling and dehumidifying evaporator symmetric parallel
The supply air temperature range that heat pump dryer can achieve is bigger.
The heat pump dryer of the cooling and dehumidifying evaporator symmetric parallel arrangement, which is characterized in that use heat pump unit
The method that unit evaporator group is arranged symmetrically may be implemented two sides and symmetrically blow, and blow more evenly, and in a heat pump unit
When failure, it will not influence the uniformity of air-supply temperature and humidity, ensure that dry quality, improve the reliable for operation of dryer
Property.
The heat pump dryer of the cooling and dehumidifying evaporator symmetric parallel arrangement, it is characterised in that wanted according to drying process
The yield of summation dried material can use three in the heat pump dryer that the cooling and dehumidifying evaporator symmetric parallel is arranged
Platform or three or more heat pump unit, regenerator, evaporator with heat pump blower number of units to may each be two to be also possible to 2n(n be big
In the integer for being equal to 1) platform.
The heat pump dryer of the cooling and dehumidifying evaporator symmetric parallel arrangement, it is characterised in that heat pump unit unit is adopted
The air supply mode served back under enters the hot-air entered in drying chamber from bottom, and it is uniform to be conducive to dry materials, condenser
It is divided into two groups of arrangements, ensure that the condenser group of elevated pressures has biggish air mass flow, reduce condenser temperature, together
When, low-pressure condenser can be made to correspond to, and heat pump unit pressure ratio is lower, and the coefficient of performance is higher, and ensure that into evaporator group
Humid air flow it is not too large, it is ensured that good cool-down dehumidification effect.
Detailed description of the invention
Fig. 1 is the main view (plan view) of the embodiment of the present invention one.
Fig. 2 is the main view of the embodiment of the present invention two.
Fig. 3 is the side view (C-C) of the embodiment of the present invention one, two.
Specific embodiment
With reference to the accompanying drawing 1, attached drawing 2, attached drawing 3 are illustrated technical solution of the present invention by specific embodiment.
A kind of heat pump dryer of cooling and dehumidifying evaporator symmetric parallel arrangement includes: insulating layer 1, air filter 2, wind
Road partition 3, evaporator with heat pump blower 4, low-pressure condenser 5, heat pump air inlet/outlet partition 6, regenerator 7, heat pump unit symmetrically divide wind
Partition 8, press and refrigeration accessory assembly section 9, drip tray 10, evaporator group 11, hothouse 14, condensation fan 15, condenser group
16, new air door 12 and heat extraction air door 13.Heat pump unit unit is made of three or three or more heat pump units, each heat pump list
Member includes compressor, evaporator, condenser, expansion valve, device for drying and filtering and fluid reservoir.Air supply mode can be intermediate air inlet or
Two sides air inlet, embodiment one are intermediate air inlet, and embodiment two is both sides air inlet.Evaporator in each heat pump unit is arranged two
Parallel connection, i.e., the evaporator in each heat pump unit is all made of the mode of A, B two identical evaporator parallel connections and heat pump unit is connected,
Be arranged in two symmetrical air conditioner units, the A evaporator of each heat pump unit according to its correspond to condensing pressure from
It is low to high that successively row is in parallel on the flow direction of cooled air is A evaporator group, the B evaporator of each heat pump unit according to
It corresponds to condensing pressure, and successively row is in parallel for B evaporator group on the flow direction of cooled air from low to high.Cooling and dehumidifying
Regenerator 7 is installed for recycling the heat in return air in the heat pump dryer of evaporator symmetric parallel arrangement, reaches part and return
Energy purpose is received, and reduces the air themperature into evaporator group 11, refrigeration duty needed for reducing dehumidification cooling air improves
The efficiency of heat pump unit unit.Condenser in heat pump unit unit divides low-pressure condenser 5 and the condenser of elevated pressures to form
Condenser group 16, two parts are arranged apart, low-pressure condenser 5 be the corresponding heat pump unit of the minimum evaporator of pressure in condensation
Device is placed in the air duct between regenerator 7 and evaporator with heat pump blower 4；Condenser group 16 is placed in 14 air outlet of hothouse
Before, the partial air of air and hothouse without dehumidifying after the dehumidifying of evaporator with heat pump blower 4 is heated, ensure that object
Expect the requirement of dry air quantity, condenser group 16 is cooling with enough air quantity, each heat pump unit while guaranteeing drying effect
In obtain lower refrigerant condensing pressure, to improve performance coefficient of heat pump.Cleannes are higher in hothouse 14 or produce
When raw dust is not enough to block condenser group 16, the air for entering condenser group 16 from the bypass of hothouse 14 can be without sky
Air filter 2 directly enters condenser group 16 from hothouse 14.According to the flow direction of air, regenerator 7 is located at evaporator group
Between 11 and low-pressure condenser 5, evaporator with heat pump blower 4 is set between 11 two parts of low-pressure condenser 5 and evaporator group.It is cold
But the air treatment section of the heat pump dryer of dehumidify evaporimeter symmetric parallel arrangement is divided into left and right two parts, is arranged symmetrically, and saves
About space, and achieve the purpose that two sides balanced ventilation.According to processing material humidity and quantity number and required drying temperature
Height heat pump unit unit three or three or more heat pump units, cooling and dehumidifying evaporator symmetric parallel cloth can be set
In the heat pump dryer set, the heat pump dryer of entire cooling and dehumidifying evaporator symmetric parallel arrangement passes through insulating layer 1 and the external world
Environment is separated by.New air door 12 is set on the air duct of non-dehumidified air between regenerator 7 and evaporator group 11；In hothouse 14
Top setting heat extraction air door 13 new air door 12 and heat extraction air door 13 are opened, extra when 14 supply air temperature of hothouse is excessively high
Heat dissipation into environment.
The heat pump dryer of the cooling and dehumidifying evaporator symmetric parallel arrangement, air handling process are as follows:
Heat pump condenser is used for the air after heating and dehumidification, so that its temperature is reached dry required technique requirement, is sent by air outlet
Enter drying of the hothouse 14 for material；It first flows through after air filter 2 filters sundries and is sent into back by the return air of hothouse 14
Hot device 7 recycles heat and dewing air cooling-down, using regenerator 7 after dehumidifying via evaporator with heat pump group 11, carries out with return air
Heat exchange, air is preheated after regenerator 7, and temperature increases, and is then fed into after condenser group 16 further heats by blowing
Mouth feeding hothouse 14；During the entire process of circulation air flowing, with air-duct clapboard 3 and heat pump air inlet/outlet partition 6 and heat
The access that pump assembly symmetrically divides wind partition 8 to be separated out air is mutually blended with reducing the preceding air with after dehumidifying of dehumidifying, guarantees air
Correct flow direction, improve air-treatment efficiency.
The heat pump dryer of the cooling and dehumidifying evaporator symmetric parallel arrangement, it is characterised in that when being used for dry materials,
Air initially enters regenerator 7 after material, and the air heat-exchange with after the dehumidifying of evaporator group 11 has recycled the energy in return air
Amount, while the air themperature into evaporator group 11 is reduced, the load of the evaporator group 11 of heat pump unit unit is reduced, is mentioned
The high efficiency of heat pump unit unit；The use of regenerator 7 also improves supply air temperature, makes cooling and dehumidifying evaporator symmetric parallel
The supply air temperature range that the heat pump dryer of arrangement can achieve is bigger.
The heat pump dryer of the cooling and dehumidifying evaporator symmetric parallel arrangement, which is characterized in that use heat pump unit
The method that unit evaporator group 11 is arranged symmetrically may be implemented two sides and symmetrically blow, and blow more evenly, and in a heat pump list
When member breaks down, it will not influence the uniformity of air-supply temperature and humidity, ensure that dry quality, the operation for improving dryer can
By property.
The heat pump dryer of the cooling and dehumidifying evaporator symmetric parallel arrangement, it is characterised in that wanted according to drying process
The yield of summation dried material can use three in the heat pump dryer that the cooling and dehumidifying evaporator symmetric parallel is arranged
Platform or three or more heat pump unit, regenerator 7, evaporator with heat pump blower 4 number of units may each be two and be also possible to 2n(n and be
Integer more than or equal to 1) platform.
The heat pump dryer of the cooling and dehumidifying evaporator symmetric parallel arrangement, it is characterised in that heat pump unit unit is adopted
The air supply mode served back under enters the hot-air entered in drying chamber from bottom, and it is uniform to be conducive to dry materials, condenser
It is divided into two groups of arrangements, ensure that the condenser group of elevated pressures has biggish air mass flow, reduce condenser temperature, together
When, the corresponding heat pump unit pressure ratio of low-pressure condenser 5 can be made lower, the coefficient of performance is higher, and ensure that into evaporator
The humid air flow of group 11 is not too large, it is ensured that good cool-down dehumidification effect.
Claims (3)
1. a kind of heat pump dryer of cooling and dehumidifying evaporator symmetric parallel arrangement include: insulating layer, air filter, air duct every
Plate, evaporator with heat pump blower, low-pressure condenser, heat pump air inlet/outlet partition, regenerator, heat pump unit symmetrically divide wind partition, press
And refrigeration accessory assembly section, drip tray, evaporator group, hothouse, condensation fan, condenser group, new air door and heat extraction air door；Heat
Pump unit unit is made of three or three or more heat pump units, and each heat pump unit includes compressor, evaporator, condensation
Device, expansion valve, device for drying and filtering and fluid reservoir；Air supply mode can be intermediate air inlet or two sides are entered the wind, in each heat pump unit
Evaporator two parallel connections are set, i.e., the evaporator in each heat pump unit is all made of the side of A, B two identical evaporator parallel connections
Formula is connected with heat pump unit, is arranged in two symmetrical air conditioner units, the A evaporator of each heat pump unit according to
It corresponds to condensing pressure, and successively row is in parallel for A evaporator group, each heat pump on the flow direction of cooled air from low to high
It is B that the B evaporator of unit corresponds to condensing pressure and successively arrange on the flow direction of cooled air in parallel from low to high according to it
Evaporator group；Regenerator is installed for recycling in return air in the heat pump dryer of cooling and dehumidifying evaporator symmetric parallel arrangement
Heat reaches partially recycled energy purpose, and reduces the air themperature into evaporator group, reduces dehumidification cooling air institute
Refrigeration duty is needed, the efficiency of heat pump unit unit is improved.
2. a kind of as described in claim 1, heat pump dryer of cooling and dehumidifying evaporator symmetric parallel arrangement, which is characterized in that
When for dry materials, air initially enters regenerator after material, with the air heat-exchange after the dehumidifying of evaporator group, recycling
Energy in return air, while reducing the air themperature into evaporator group；The use of regenerator also improves supply air temperature,
The supply air temperature range that the heat pump dryer for arranging cooling and dehumidifying evaporator symmetric parallel can achieve is bigger；According to back tender
Skill requires and the yield of dried material, can adopt in the heat pump dryer that the cooling and dehumidifying evaporator symmetric parallel is arranged
With three or three or more heat pump units；Regenerator, evaporator with heat pump blower number of units may each be two and be also possible to 2n(n
For the integer more than or equal to 1) platform.
3. a kind of as described in claim 1, heat pump dryer of cooling and dehumidifying evaporator symmetric parallel arrangement, which is characterized in that
Two sides may be implemented using the method that heat pump unit unit evaporator group is arranged symmetrically symmetrically to blow, blow more evenly, and
When one heat pump unit breaks down, it will not influence the uniformity of air-supply temperature and humidity, ensure that dry quality, improve drying
The operational reliability of machine；Condenser is divided into two groups of arrangements, ensure that the condenser group of elevated pressures has biggish air mass flow,
Condenser temperature is reduced, meanwhile, low-pressure condenser can be made to correspond to, and heat pump unit pressure ratio is lower, and the coefficient of performance is higher, with
And it ensure that the humid air flow into evaporator group is not too large, it is ensured that good cool-down dehumidification effect；Heat pump unit unit
The air supply mode served back under enters the hot-air entered in drying chamber from bottom, it is uniform to be conducive to dry materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811175404.9A CN109282587A (en) | 2018-10-10 | 2018-10-10 | A kind of heat pump dryer of cooling and dehumidifying evaporator symmetric parallel arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811175404.9A CN109282587A (en) | 2018-10-10 | 2018-10-10 | A kind of heat pump dryer of cooling and dehumidifying evaporator symmetric parallel arrangement |
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| CN109282587A true CN109282587A (en) | 2019-01-29 |
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| CN201811175404.9A Pending CN109282587A (en) | 2018-10-10 | 2018-10-10 | A kind of heat pump dryer of cooling and dehumidifying evaporator symmetric parallel arrangement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113959190A (en) * | 2021-10-15 | 2022-01-21 | 青岛海尔空调电子有限公司 | Method and device for controlling heat pump dryer, electronic equipment and storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959190A (en) * | 2021-10-15 | 2022-01-21 | 青岛海尔空调电子有限公司 | Method and device for controlling heat pump dryer, electronic equipment and storage medium |
| CN113959190B (en) * | 2021-10-15 | 2023-02-28 | 青岛海尔空调电子有限公司 | Method and device for controlling heat pump dryer, electronic apparatus, and storage medium |
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Application publication date: 20190129 |