CN110186272A - A kind of heat pump drying device - Google Patents
A kind of heat pump drying device Download PDFInfo
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- CN110186272A CN110186272A CN201910582842.5A CN201910582842A CN110186272A CN 110186272 A CN110186272 A CN 110186272A CN 201910582842 A CN201910582842 A CN 201910582842A CN 110186272 A CN110186272 A CN 110186272A
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- air
- air inlet
- inlet duct
- exhaust passage
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F25B39/00—Evaporators; Condensers
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/14—Collecting or removing condensed and defrost water; Drip trays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
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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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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of heat pump drying devices, including heat pump circulating system and dry gas stream system；By pipeline member, exhaust outlet of compressor, calorie adjusting device, condenser, throttling element, evaporator, compressor air suction mouth are sequentially communicated, form heat pump circulating system；In the dry gas stream system, hothouse is connect with air inlet duct, exhaust passage respectively, and drying air fan is installed in air inlet duct or exhaust passage；Condenser, evaporator in heat pump circulating system are mounted in air inlet duct, and condenser is between evaporator and hothouse air inlet；Calorie adjusting device is mounted on outside dry gas stream system, by changing the heat exchange amount between calorie adjusting device and external environment, the purpose for adjusting hothouse inlet air temperature is realized, to reach the beneficial effect that dry range is wide, dried object is not easily damaged.Further, heat regenerator, four-way reversing valve, air-valve etc. are also provided in present system, to solve the problems, such as that system energy consumption is big, low efficiency.
Description
Technical field
The present invention relates to a kind of drying devices, and in particular to a kind of heat pump drying device.
Background technique
Drying device common in the art is divided into two class of electrical drying device and heat pump drying device, main to apply
Dry, field of food or the dry field of crops in clothes.Existing drying device and its drying means are primarily present asks as follows
Topic:
1, energy consumption is high
Common drying device does not have heat recovery function, and the exhaust gas for the high temperature and humidity that drying process generates is immediately discharged to outer
In portion's environment, it is not only easy pollution surrounding air environment, but also increase the energy consumption of drying process；
2, drying efficiency is low, and drying process is long
Common drying device does not have heat regulation function, and rate of rise in temperature is slow in hothouse, dry after the completion of heating
Indoor temperature is also difficult to adjust and maintain, and reduces dry efficiency, drying process is long；
3, poor reliability
Drying process is a dynamic process, the working condition of Analysis of Heat Pump Drying System and its recurring number of internal refrigeration storage agent
Amount changes as drying process changes, and refrigerant is easy to appear in evaporator evaporates incomplete phenomenon, and common heat
It is fitted without superheater in pump drying device, refrigerant is easy to cause compression when cannot be evaporated completely in evaporator
Machine generates liquid hammer and damages；
4, the type of dried object is few, easily damaged
Common drying system relies primarily on the principle of heating high temperature drying, the dried object of high temperature sensitive is then easy by
Damage, so the type for the dried object that same drying equipment can be applicable in necessarily is limited.
Summary of the invention
In order to solve existing drying device, energy consumption is high, drying efficiency is low, poor reliability, and the type of dried object is few and easy
The problems such as impaired, the present invention specifically provides the following technical solutions:
A kind of heat pump drying device, includes mainly heat pump circulating system and dry gas stream system, heat pump circulating system include
Compressor, condenser, throttling element, evaporator；Dry gas stream system includes hothouse, air inlet duct, exhaust passage, drying air fan；Its
Be characterized in that: the heat pump circulating system further includes a calorie adjusting device, by pipe fitting, by exhaust outlet of compressor,
Calorie adjusting device, condenser, throttling element, evaporator, compressor air suction mouth are sequentially communicated, and so constitute heat pump circulating system
Refrigerant circulation loop；Hothouse has air inlet and air outlet, accordingly connect respectively with air inlet duct, exhaust passage, dry wind
Machine is installed in air inlet duct or exhaust passage, so constitutes the airflow channel of dry gas stream system；The heat pump circulating system
In condenser, evaporator be mounted in air inlet duct, wherein condenser is installed between evaporator and hothouse air inlet, institute
It states calorie adjusting device to be mainly made of heat exchanger I and cooling fan, calorie adjusting device is mounted on the outer of dry gas stream system
Portion, the air quantity by changing cooling fan change the heat exchange amount between calorie adjusting device and external environment, realize and adjust
The purpose of dry room temperature, when the heat that calorie adjusting device is distributed to outside is larger, the temperature of hothouse will gradually decline,
When the heat that calorie adjusting device is distributed to outside is smaller or stops heat dissipation, the temperature of hothouse will be gradually risen, to make
The drying room temperature for obtaining heat pump drying device is adjustable within the scope of some, can better adapt to different drying species, again
Dried object can be prevented impaired.In order to coordinate and manage the work in heat pump drying device between each system and its components, heat pump
Drying device is also equipped with controller, and controller is installed on the suitable position of heat pump drying device.
Further, a kind of heat pump drying device, the dry gas stream system further include a heat regenerator, recuperation of heat
It is divided into two groups of heat exchanger channels separated in device, wherein one group of heat exchanger channels is placed in air inlet duct and is connected with air inlet duct, and because
Air inlet duct is divided into II two parts of air inlet duct I and air inlet duct by this, and another group of heat exchanger channels in heat regenerator are placed in exhaust passage
And it is connected with exhaust passage, and exhaust passage is therefore divided into II two parts of exhaust passage I and exhaust passage；The heat pump circulating system
In condenser, evaporator be accordingly respectively arranged in the air inlet duct I in dry gas stream system, in air inlet duct II.Its work is former
It manages as follows:
When the heat pump circulating system works, the gaseous refrigerant of compressor discharge high temperature and pressure enters heat regulation dress
It sets, the refrigerant that calorie adjusting device comes out flows into condenser again, and refrigerant is rejected heat within the condenser in air inlet duct I
Air-flow after be transformed into the refrigerant of liquid, the refrigerant of liquid enters evaporator after throttling again by throttling element, and refrigerant exists
It is absorbed into the heat of II interior air-flow of air duct in evaporator and is transformed into the gaseous refrigerant of low-temp low-pressure, then returns again to compression
Machine so constitutes the circulation loop of refrigerant.
When the described dry gas stream system work, under the driving of drying air fan, the air-flow of hothouse high temperature and humidity is from dry
Dry room exhaust passage I is flowed out, and flows to one group of heat exchanger channels in heat regenerator, is discharged after coming out from heat regenerator through exhaust passage II
Into external environment, on the other hand, the new air of external environment is flowed into through air inlet duct II, and recuperation of heat is flowed to after evaporator
Another group of heat exchanger channels in device, the air-flow of the high temperature and humidity flowed out in heat regenerator with exhaust passage I realize heat and exchange,
Then enter hothouse through condenser and air inlet duct I again after coming out from heat regenerator.In the process, it is flowed by air inlet duct II
New air is successively dry after the cooling and dehumidification for by dehumidification drying process, being respectively as follows: 1. evaporator three times before entering hothouse
The heating drying of dry, 2. heat regenerator heating drying, 3. condenser, so its drying capacity is greatly improved, thus
The working efficiency for improving dry gas stream system, reduces energy consumption.Heat especially between two strands of air-flows in heat regenerator is handed over
It changes, has recycled the waste heat of exhaust passage air-flow not only to reduce energy consumption, while also avoiding the high temperature and humidity for generating drying process
Exhaust gas be immediately discharged in external environment, reduce the pollution to environment.
Further, a kind of heat pump drying device further includes four-way reversing valve, auxiliary section in the heat pump circulating system
Flow part and two check valves；Wherein original throttling element of check valve I and heat pump circulating system composes in parallel main orifice union, single
Auxiliary orifice union is composed in parallel to valve II and auxiliary throttling element, by pipe fitting by exhaust outlet of compressor, four-way reversing valve
Interface D, the interface C of four-way reversing valve, calorie adjusting device, auxiliary orifice union, condenser, main orifice union, four-way change
It is sequentially connected to the interface E of valve, the interface S of four-way reversing valve, evaporator, compressor air suction mouth, so constitutes improved heat
The refrigerant circulation loop of pump circulation system.
Its working principles are as follows: by the switching of four-way reversing valve spool, hothouse may be implemented to be rapidly heated, temperature adjustment and
The switching of three kinds of operating modes of constant temperature；Four-way reversing valve obtain it is electric after, hothouse, which can enter, to be rapidly heated operating mode；And work as
After four-way reversing valve power loss, hothouse can enter temperature adjustment and constant temperature operating mode.
In the case where hothouse is rapidly heated operating mode, four-way reversing valve obtains electric back valve core commutation, the interface D of four-way reversing valve
Be connected to the internal channel of interface E, interface C is connected to the internal channel of interface S, the gaseous refrigerant that high temperature and pressure is discharged in compressor is logical
It crosses interface D and enters four-way reversing valve, condensation is entered by the check valve I (forward) in four-way reversing valve interface E, main orifice union
Device after condensation heat is released to the air-flow in air inlet duct within the condenser by refrigerant, is changed into the liquid refrigerant of low pressure, then leads to
The throttling element crossed in auxiliary orifice union enters calorie adjusting device, and the liquid refrigerant of low pressure evaporates in calorie adjusting device
And the atmospheric heat in external environment is absorbed, after entering evaporator using four-way reversing valve interface C, interface S, return to compression
Machine, in such a mode, calorie adjusting device are equivalent to partial vaporiser function, and the liquid refrigerant of low pressure is in calorie adjusting device
Heat in middle absorption ambient air outside, then it is released to the air-flow in air inlet duct via condenser, realize that hothouse quickly rises
The effect of temperature.
Under hothouse temperature adjustment or constant temperature operating mode, four-way reversing valve power loss back valve core resets, and four-way reversing valve connects
D is connected to mouth with the internal channel of interface C, interface E is connected to the internal channel of interface S, and the gaseous refrigerant of high temperature and pressure is discharged in compressor
Agent enters four-way reversing valve by interface D, enters calorie adjusting device, the refrigerant that calorie adjusting device comes out by interface C
Condenser is flowed into using the check valve II (forward) in auxiliary throttling element, refrigerant, which within the condenser discharges condensation heat, to be fed
It is changed into liquid refrigerant after dry gas stream in air duct, then by the throttling element in main orifice union, then commutates through four-way
Interface E, the interface S of valve enter evaporator, eventually pass back to compressor.Under both modes, calorie adjusting device is equivalent to portion
Divide condenser function, the air quantity by changing cooling fan changes the heat exchange amount of calorie adjusting device and external environment, real
Now adjust or maintain the effect of dry room temperature.
Further, a kind of heat pump drying device further includes superheater in the heat pump circulating system；Superheater is main
It is made of heat exchanger II, by pipe fitting, the import of heat exchanger II is connected with the outlet of evaporator, the outlet of heat exchanger II
It is connected with compressor air suction mouth, superheater is installed on the endpiece of exhaust passage in dry gas stream system.Its working principles are as follows: refrigeration
Agent from evaporator come out after, into superheater because superheater is placed in exhaust passage, refrigerant pass through superheater when, and
Air-flow in exhaust passage carries out heat exchange, recycles the heat in the air-flow of exhaust passage, reduces environmental pollution；On the other hand, due to system
The heat in the air-flow of exhaust passage can be absorbed in cryogen in the superheater, helps to ensure refrigerant in the front evaporator for entering compressor
Completely and there is the bigger degree of superheat, prevents heat pump circulating system in a variety of drying mode courses of work, liquid occurs in compressor
Damage phenomenon is hit, the reliability of heat pump circulating system is improved.
Further, a kind of heat pump drying device, the dry gas stream system further include air-valve group and by-pass, bypass
Road between air inlet duct and exhaust passage, air-valve group include two air-valves, wherein the by-pass in install an air-valve, exhaust passage and
Another air-valve is shared in air inlet duct；Or air-valve group includes three air-valves, by-pass, exhaust passage respectively install one in air inlet duct
Air-valve.When the air-valve group is adjusted to opening state, the air-valve in air inlet duct, exhaust passage is opened, while the wind in by-pass
Valve is closed；When air-valve group is adjusted to closed state, the air-valve in air inlet duct, exhaust passage is closed, while the air-valve in by-pass is beaten
It opens.The specific working principle is as follows: controlling air-valve group by controller and opens or closes movement, realizes hothouse airflow exits or follow
Ring uses function.When hothouse airflow humidity is larger, air-valve group is adjusted to opening state, and the air-valve in air inlet duct, exhaust passage is beaten
It opens and is communicated respectively with external environment, while the air-valve in by-pass is closed, the by-pass between air inlet duct and exhaust passage is closed,
The air-flow of high humility is emitted into external environment by dry gas stream system by exhaust passage at this time, and the fresh air in external environment passes through
Air inlet duct sucks in dry gas stream system；When hothouse airflow humidity is little, air-valve group is adjusted to closed state, air inlet duct and goes out
Air-valve in air duct is closed, and is blocked with the channel of external environment, while the air-valve in by-pass is opened, air inlet duct and exhaust passage
It is connected to by by-pass, the air-flow in exhaust passage flows into air inlet duct by by-pass, so that the gas in dry gas stream system
Stream is recycled, and reduces thermal loss, improves drying efficiency.It, can also opening each air-valve according to the drying process needs of unit
Degree is adjusted to the angle of some setting, can be achieved with dry gas stream in this way and is partially discharged in cyclic process, and part fresh air enters
Purpose, improve working efficiency.
Further, a kind of heat pump drying device, the dry gas stream system further includes sealing plate and by-pass.Sealing plate point
To not separate between air inlet duct, exhaust passage and external environment, by-pass between air inlet duct and exhaust passage, thus by air inlet duct and
Exhaust passage connection.Its working principles are as follows: when the dry gas stream system works, under the driving of drying air fan, hothouse
The air-flow of interior high temperature and humidity is flowed out from hothouse exhaust passage, after exhaust passage end encounters sealing plate, is then flowed to by by-pass
Air inlet duct after realizing cool-down dehumidification at evaporator, then flows to condenser, into one at condenser then using evaporator
Become the higher and drier air-flow of temperature after the heat of step absorption refrigerant, into hothouse.Sealing plate is by exhaust passage and air inlet
The channel enclosed in road and external environment realizes circulation inside dry gas stream, and the high temperature and humidity for preventing drying process from generating is useless
Gas is discharged into air, reduces the pollution to environment.
Further, a kind of heat pump drying device, the heat pump circulating system further include water receiving disc apparatus, and drip tray is set
Standby to be installed below evaporator, the air in dry gas stream system, condensation on an evaporator, will form small water droplet, drip tray
Equipment can be excluded after drop collection by pipeline, to reduce the humidity in dry gas stream system, can further be mentioned
The efficiency of high drying system.
Further, a kind of heat pump drying device, the dry gas stream system further include dedusting filter, dedusting
Filter device is installed in air inlet duct, can remove most of dust of the air-flow in air inlet duct, so that entering dry indoor gas
It flows cleaner；If being mounted on dedusting filter into before heat regenerator or drying air fan, air-flow is entering heat time
Before receiving device or drying air fan, become clean by filtering, reduction harm can also be played to heat regenerator or drying air fan, extended
The effect in service life.
Further, a kind of heat pump drying device, the hothouse in the dry gas stream system can both be done by heat pump
Dry device itself configuration, can also separately build according to the needs of users, thus meet the different demands of different clients, so that this
Device has stronger adaptability.
Detailed description of the invention
Fig. 1 is that the components decomposition diagram of the embodiment of the present invention four (and is filled equipped with water receiving disc apparatus and dust removal and filtration
It sets).
Fig. 2 is the implementation principle figure (and equipped with water receiving disc apparatus and dedusting filter) of the embodiment of the present invention one.
Fig. 3 is the implementation principle figure (and equipped with water receiving disc apparatus and dedusting filter) of the embodiment of the present invention two.
Fig. 4 is the implementation principle figure (and equipped with water receiving disc apparatus and dedusting filter) of the embodiment of the present invention three.
Fig. 5 is the implementation principle figure (and equipped with water receiving disc apparatus and dedusting filter) of the embodiment of the present invention four, at this time
Air-valve group is adjusted to opening state.
Fig. 6 is the implementation principle figure (and equipped with water receiving disc apparatus and dedusting filter) of the embodiment of the present invention four, at this time
Air-valve group is adjusted to closed state.
Fig. 7 is the implementation principle figure (and equipped with water receiving disc apparatus and dedusting filter) of the embodiment of the present invention five.
Arrow direction in Fig. 2 to 7 is the direction of motion of dry gas stream.
In figure: 1-1 is compressor, and 1-2 is condenser, and 1-3 is throttling element, and 1-4 is evaporator, and 1-5 is heat regulation dress
It sets, 1-6 is superheater, and 1-7 is four-way reversing valve, and 1-8 is auxiliary throttling element, and 1-9 is the check valve I of main orifice union, 1-10
For the check valve II for assisting orifice union, 1-11 is water receiving disc apparatus, and 2-1 is hothouse, and 2-2 is air inlet duct, and 2-2-1 is air inlet
Road I, 2-2-2 are air inlet duct II, and 2-3 is exhaust passage, and 2-3-1 is exhaust passage I, and 2-3-2 is exhaust passage II, and 2-4 is drying air fan,
2-5 is heat regenerator, and 2-6 is sealing plate, and 2-7 is dedusting filter, and 2-8-1 is the air-valve in by-pass, and 2-8-2 is air inlet duct
With the air-valve shared in exhaust passage, 2-9 is by-pass, and 3 be controller.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Embodiment one
Referring to attached drawing 2, the present invention provides a kind of heat pump drying device, including heat pump circulating system and dry gas stream system,
The heat pump circulating system includes compressor 1-1, condenser 1-2, throttling element 1-3, evaporator 1-4；The dry gas stream system
Including hothouse 2-1, air inlet duct 2-2, exhaust passage 2-3, drying air fan 2-4；The heat pump circulating system further includes a heat
Regulating device 1-5, calorie adjusting device are connected between compressor and condenser, by pipeline member, by exhaust outlet of compressor, heat
Quantity regulating device, condenser, throttling element, evaporator, compressor air suction mouth are sequentially communicated, and constitute the refrigerant of heat pump circulating system
Circulation canal；The dry gas stream system, hothouse have air inlet and air outlet, connect respectively with air inlet duct, exhaust passage, dry
Assembling is in air inlet duct or exhaust passage；Condenser, evaporator in the heat pump circulating system are mounted on air inlet duct
Interior, wherein condenser is installed between evaporator and hothouse air inlet, and the calorie adjusting device is mounted on dry gas stream system
The outside of system, calorie adjusting device are mainly made of heat exchanger I and cooling fan, require changeable heat dissipation according to the control of unit
The air quantity of blower and then the heat exchange amount for changing its heat exchanger I and external environment realize the effect for adjusting dry room temperature；In order to assist
Work in reconciliation management heat pump drying device between each system and its components, heat pump drying device are also equipped with controller 3, control
Device processed is installed on the suitable position of heat pump drying device.
Embodiment two
Referring to attached drawing 3, on the basis of example 1, the dry gas stream system further includes a heat regenerator 2-5,
It is divided into two groups of heat exchanger channels separated in heat regenerator, wherein one group of heat exchanger channels is placed in air inlet duct and is connected with air inlet duct
It is logical, and air inlet duct is therefore divided into I 2-2-1 of air inlet duct, II 2-2-2 two parts of air inlet duct, another group of heat exchange in heat regenerator
Channel is placed in exhaust passage and is connected with exhaust passage, and exhaust passage is therefore divided into I 2-3-1 of exhaust passage, II 2-3-2 of exhaust passage
Two parts；Condenser 1-2, evaporator 1-4 in the heat pump circulating system are accordingly respectively arranged in dry gas stream system
In I 2-2-1 of air inlet duct, II 2-2-2 of air inlet duct in.When the heat pump circulating system works, it is high that high temperature is discharged in compressor 1-1
The gaseous refrigerant of pressure enters calorie adjusting device 1-5, and the refrigerant that calorie adjusting device comes out flows into condenser 1-2 again, makes
Cryogen will be transformed into the refrigerant of liquid, the system of liquid within the condenser after air-flow that condensation heat is released in I 2-2-1 of air inlet duct
Cryogen enters evaporator 1-4 after passing through throttling element 1-3 throttling again, and refrigerant is absorbed into gas in II 2-2-2 of air duct in evaporator
The heat of stream and the gaseous refrigerant for being transformed into low-temp low-pressure, then return again to compressor 1-1.Calorie adjusting device 1-5 according to
The control of unit requires that the heat exchange amount of its heat exchanger I and external environment can be changed, and realizes the effect for adjusting dry room temperature.It is described
The work of dry gas stream system when, under the driving of drying air fan 2-4, the air-flow of high temperature and humidity is from hothouse in hothouse 2-1
I 2-3-1 of exhaust passage outflow, and flows to one group of heat exchanger channels in heat regenerator 2-5, from heat regenerator come out after through exhaust passage II
2-3-2 is emitted into external environment, and on the other hand, the new air of external environment is flowed into through II 2-2-2 of air inlet duct, and through pervaporation
Another group of heat exchanger channels in heat regenerator 2-5 are flowed to after device 1-4, are flowed out in heat regenerator 2-5 with I 2-3-1 of exhaust passage
The air-flow of high temperature and humidity realize heat exchange, then from heat regenerator come out again through condenser 1-2 and I 2-2-1 of air inlet duct into
Enter hothouse 2-1.In the process, it have passed through three times by the new air-flow that air inlet duct II flows by dehumidification drying process: 1., evaporating
The heating drying of the heating drying of the cooling and dehumidification of device, 2. heat regenerator, 3. condenser, so improves into hothouse air-flow
Drying capacity, promote dry gas stream system high efficiency work, reduce energy consumption.Especially between two strands of air-flows in heat regenerator
Heat exchange, recycled the waste heat of exhaust passage air-flow not only to reduce energy consumption, while also avoiding the height for generating drying process
The exhaust gas of warm high humidity is immediately discharged in external environment, reduces the pollution to environment.
Embodiment three
Referring to attached drawing 4, on the basis of example 2, the heat pump circulating system further includes four-way reversing valve 1-7, auxiliary
Help throttling element 1-8, I 1-9 of check valve, II 1-10 of check valve, superheater 1-6；Check valve I and throttling element 1-3 compose in parallel main section
Component is flowed, check valve II and auxiliary throttling element 1-8 compose in parallel auxiliary orifice union, and superheater 1-6 is installed on dry gas stream system
In II 2-3-2 of exhaust passage in system, by pipeline member, by compressor 1-1 exhaust outlet, interface D, the four-way of four-way reversing valve 1-7
Interface C, calorie adjusting device 1-5, the auxiliary orifice union, condenser 1-2, main orifice union, four-way reversing valve 1-7 of reversal valve
Interface E, interface S, evaporator 1-4, superheater 1-6, compressor 1-1 air entry be sequentially connected.
By the switching of four-way reversing valve spool, hothouse may be implemented to be rapidly heated, three kinds of Working moulds of temperature adjustment and constant temperature
The switching of formula；Four-way reversing valve obtain it is electric after, hothouse, which can enter, to be rapidly heated operating mode；And work as four-way reversing valve power loss
Afterwards, hothouse can enter temperature adjustment and constant temperature operating mode.
In the case where hothouse is rapidly heated operating mode, four-way reversing valve 1-7 obtains electric back valve core commutation, and four-way reversing valve connects
D is connected to mouth with the internal channel of interface E, interface C is connected to the internal channel of interface S, and the gaseous state system of high temperature and pressure is discharged in compressor 1-1
Cryogen enters four-way reversing valve by the interface D of four-way reversing valve, passes through the list in four-way reversing valve interface E, main orifice union
To I 1-9 of valve (forward), into condenser 1-2, condensation heat is released to the gas in I 2-2-1 of air inlet duct by refrigerant within the condenser
Be changed into liquid refrigerant after stream, then by enter after the throttling element 1-8 in auxiliary orifice union calorie adjusting device 1-5,
The refrigerant of low pressure evaporates in calorie adjusting device and absorbs the atmospheric heat in external environment, connects using four-way reversing valve
Mouth C, interface S return to compressor 1-1 after entering evaporator 1-4, superheater 1-6, in such a mode, calorie adjusting device 1-5 phase
When absorbing the atmospheric heat in external environment in partial vaporiser function, and the air-flow of air inlet duct I is released to by condenser 1-2,
Realize the effect that hothouse is rapidly heated.
Under hothouse temperature adjustment or constant temperature operating mode, four-way reversing valve 1-7 power loss back valve core resets, four-way reversing valve
Interface D is connected to the internal channel of interface C, interface E is connected to the internal channel of interface S, and the gaseous state of high temperature and pressure is discharged in compressor 1-1
Refrigerant enters four-way reversing valve by interface D, then enters calorie adjusting device 1-5, heat by four-way reversing valve interface C
The refrigerant that regulating device comes out flows into condenser 1-2, refrigeration using II 1-10 of check valve (forward) in auxiliary throttling element
It is changed into liquid refrigerant after the air stream that condensation heat is released in I 2-2-1 of air inlet duct by agent within the condenser, then passes through
Throttling element 1-3 in main orifice union, then pressure is returned to after four-way valve interface E, interface S enter evaporator 1-4, superheater 1-6
Contracting machine 1-1.Under both operating modes, calorie adjusting device 1-5 is equivalent to fractional distilling tube function, by adjusting its heat exchange
Device I and external environment heat exchange amount realize the effect for adjusting or maintaining dry room temperature, when calorie adjusting device distributes heat to outside
When measuring larger, the temperature of hothouse will gradually decline, and when calorie adjusting device distributes small heat or stopping heat dissipation to outside, do
The temperature of dry room will gradually rise, when calorie adjusting device distributes heat to outside and keeps the heat base into hothouse air-flow
When this is stable, the temperature of hothouse enters temperature constant state.
Superheater 1-6 is installed between evaporator 1-4 and compressor 1-1 and is placed in exhaust passage, on the one hand, can recycle
Heat in the air-flow of exhaust passage reduces heat dissipation, on the other hand, helps to ensure refrigerant in the front evaporator for entering compressor
Completely and there is the bigger degree of superheat, prevents heat pump circulating system in a variety of drying mode courses of work, liquid occurs in compressor
Damage phenomenon is hit, the reliability of heat pump circulating system is improved.
Example IV
Referring to attached drawing 1,5 and 6, on the basis of embodiment three, the dry gas stream system further includes air-valve group and side
Channel 2-9, by-pass 2-9 are located between II 2-3-2 of II 2-2-2 of air inlet duct and exhaust passage, and air-valve group includes two air-valve 2-8-1
And 2-8-2, an air-valve 2-8-1 is wherein installed in by-pass, shares another air-valve 2-8-2 in exhaust passage II and air inlet duct II；
Or air-valve group includes three air-valves, an air-valve is respectively installed in air inlet duct II in by-pass, exhaust passage II.
When the air-valve group is adjusted to opening state (referring to Fig. 5), in II 2-3-2 of II 2-2-2 of air inlet duct and exhaust passage
Air-valve 2-8-2 open, air inlet duct II and exhaust passage II are communicated with external environment respectively, while the air-valve 2- on the 2-9 of by-pass
8-1 is closed, and air inlet duct II and exhaust passage II are separated；When air-valve group is adjusted to closed state (referring to Fig. 6), II 2-2- of air inlet duct
Air-valve 2-8-2 in 2 and II 2-3-2 of exhaust passage is closed, and air inlet duct II and exhaust passage II and the channel of external environment are closed by air-valve
It closes, while the air-valve 2-8-1 on the 2-9 of by-pass is opened, air inlet duct II is connected to by by-pass 2-9 with exhaust passage II at this time；Work as wind
When valve group needs to be adjusted to some set angle, the aperture of each air-valve will be in some set angle.
When the dry gas stream system works, under the driving of drying air fan 2-4, high temperature and humidity in hothouse 2-1
Air-flow flows to one group of heat exchanger channels in heat regenerator 2-5 by I 2-3-1 of exhaust passage, then enters II 2-3-2 of exhaust passage, after
Continuous point following two kinds of situations work: 1. when air-valve group is adjusted to opening state (referring to Fig. 5), II 2-2-2 of air inlet duct, outlet air
II 2-3-2 of road is communicated with external environment respectively, has simultaneously closed off by-pass 2-9, then the air-flow of II 2-3-2 of exhaust passage is by overheat
It is emitted into external environment after device 1-6, on the other hand, the new air in outside that II 2-2-2 of air inlet duct comes in is first in evaporator 1-4
Place flows to another group of heat exchanger channels of heat regenerator 2-5 after realizing cool-down dehumidification again, in heat regenerator with I 2-3-1 of exhaust passage
The air-flow of the high temperature and humidity of outflow realize heat exchange, then from heat regenerator 2-5 come out after again through condenser 1-2 and air inlet
I 2-2-1 of road enters hothouse 2-1；2. when air-valve group is adjusted to closed state (referring to Fig. 6), II 2-2-2 of air inlet duct, exhaust passage
II 2-3-2 is closed with the channel of external environment respectively, has opened simultaneously by-pass 2-9, the air-flow of above-mentioned II 2-3-2 of exhaust passage
After superheater 1-6, due to encountering the air-valve 2-8-2 of closing, air-flow then pass through by-pass 2-9 flow to II 2-2-2 of air inlet duct,
Then using evaporator 1-4, another group of heat exchanger channels of heat regenerator 2-5 are flowed to after realization cool-down dehumidification at evaporator,
Heat is realized with the air-flow of the high temperature and humidity of I 2-3-1 of exhaust passage outflow in heat regenerator to exchange, and then flows to condenser again
1-2 becomes the higher and drier air-flow of temperature after further absorbing the heat of refrigerant within the condenser, and dry gas stream passes through again
I 2-2-1 of air inlet duct enters hothouse 2-1.The dry gas stream system is opened by each air-valve that unit allocation changes air-valve group
State is opened, realize hothouse airflow exits or function is recycled；When hothouse airflow humidity is larger, air-valve group opens (ginseng
See Fig. 5), dry gas stream system is by the airflow exits of high humility into external environment；When hothouse airflow humidity is little, air-valve
Group closes (referring to Fig. 6), and the airflow circulating in dry gas stream system uses, and reduces thermal loss, improves drying efficiency；According to machine
The drying process of group needs, and the aperture of each air-valve can also be adjusted to the angle of some setting, dry gas stream is can be achieved in this way and exist
It is partially discharged in cyclic process, the purpose that part fresh air enters improves working efficiency.
Embodiment five
Attached drawing 7 is participated in, the present embodiment is the another kind of the air inlet duct and exhaust passage to the dry gas stream system of example IV
The improvement of form replaces air-valve group by sealing plate 2-6, and sealing plate is by II 2-3-2 of exhaust passage, II 2-2-2 of air inlet duct and external environment
Passageway break is connected between exhaust passage II, air inlet duct II by by-pass 2-9.When the dry gas stream system works, dry
Under the driving of dry blower 2-4, the air-flow of dry indoor high temperature and humidity is flowed out from hothouse 2-1 air outlet, passes through I 2- of exhaust passage
3-1 flows to one group of heat exchanger channels in heat regenerator 2-5, then enter II 2-3-2 of exhaust passage, by after superheater 1-6 due to
Sealing plate 2-6 is encountered, air-flow then passes through by-pass 2-9 and flows to II 2-2-2 of air inlet duct, then using evaporator 1-4, in evaporator
Another group of heat exchanger channels that heat regenerator 2-5 is flowed to after place's realization cool-down dehumidification, flow in heat regenerator with I 2-3-1 of exhaust passage
The air-flow of high temperature and humidity out realizes heat exchange, then flows to condenser 1-2 again, refrigeration is further absorbed at condenser
Become the higher and drier air-flow of temperature after the heat of agent, dry gas stream enters hothouse 2-1 through I 2-2-1 of air inlet duct again.
Referring to attached drawing 2 to 7, water receiving disc apparatus 1-11 can be arranged in above-mentioned all embodiments in heat pump circulating system, connect
Water pond equipment is mounted on the underface of evaporator 1-4, when the condensation vapor in the air-flow in dry gas stream system on an evaporator,
It will form small water droplet, water receiving disc apparatus can be excluded after drop collection by pipeline, to reduce in dry gas stream system
Humidity, can be further improved the efficiency of drying system.
Referring to attached drawing 2 to 7, dedusting filter 2-7 can be arranged in above-mentioned all embodiments in dry gas stream system, remove
Dirt filter device is installed in air inlet duct, can remove most of dust of the air-flow in air inlet duct, so that into hothouse
Air-flow it is cleaner；If dedusting filter is mounted on into before heat regenerator 2-5 or drying air fan 2-4, air-flow
When entering heat regenerator or drying air fan, becomes clean by filtering, heat regenerator or drying air fan can also be risen
It is endangered to reducing, extends the effect in service life.
Above-described embodiment is only to be convenient for preferable reality listed by explanation and illustration technical solution of the present invention and working principle
Mode is applied, in fact there are also diversified forms and combination for embodiments of the present invention, and are not restricted to the described embodiments, other
Any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention, should be equivalent
Substitute mode is included within the scope of the present invention.
Claims (10)
1. a kind of heat pump drying device, including heat pump circulating system and dry gas stream system, the heat pump circulating system includes pressure
Contracting machine (1-1), condenser (1-2), throttling element (1-3), evaporator (1-4)；The dry gas stream system includes hothouse (2-
1), air inlet duct (2-2), exhaust passage (2-3), drying air fan (2-4)；It is characterized by: the heat pump circulating system further includes one
A calorie adjusting device (1-5), calorie adjusting device is mainly made of heat exchanger I and cooling fan, calorie adjusting device connection
Between compressor and condenser, by pipeline member, by exhaust outlet of compressor, calorie adjusting device, condenser, throttling element, steaming
Hair device, compressor air suction mouth are sequentially communicated；The dry gas stream system, hothouse have an air inlet and air outlet, air inlet with into
Air duct connection, air outlet are connect with exhaust passage, and drying air fan is installed in air inlet duct or exhaust passage；The heat pump circulating system
In condenser, evaporator be mounted in air inlet duct, wherein condenser is installed between evaporator and hothouse air inlet, heat
Quantity regulating device is mounted on the outside of dry gas stream system.
2. heat pump drying device according to claim 1, it is characterised in that: the dry gas stream system further includes a heat
Recover (2-5) is divided into two groups of heat exchanger channels separated in heat regenerator, wherein one group of heat exchanger channels be placed in air inlet duct and with
Air inlet duct is connected, and air inlet duct is therefore divided into air inlet duct I (2-2-1), two part of air inlet duct II (2-2-2), heat regenerator
In another group of heat exchanger channels be placed in exhaust passage and be connected with exhaust passage, and exhaust passage is therefore divided into I (2-3- of exhaust passage
1), two part exhaust passage II (2-3-2)；Condenser in the heat pump circulating system be installed in dry gas stream system into
Air duct I is interior, evaporator is installed in air inlet duct II.
3. heat pump drying device according to claim 1, it is characterised in that: the heat pump circulating system further includes four-way
Reversal valve (1-7), auxiliary throttling element (1-8), check valve I (1-9), check valve II (1-10)；Wherein check valve I (1-9) and section
Stream part (1-3) composes in parallel main orifice union, and check valve II (1-10) and auxiliary throttling element (1-8) compose in parallel auxiliary throttling group
Part；By pipeline member, exhaust outlet of compressor, the interface D of four-way reversing valve, the interface C of four-way reversing valve, heat regulation are filled
Set, assist orifice union, condenser, main orifice union, the interface E of four-way reversing valve, the interface S of four-way reversing valve, evaporator,
Compressor air suction mouth is sequentially connected.
4. heat pump drying device according to claim 3, it is characterised in that: the dry gas stream system further includes a heat
Recover (2-5) is divided into two groups of heat exchanger channels separated in heat regenerator, wherein one group of heat exchanger channels be placed in air inlet duct and with
Air inlet duct is connected, and air inlet duct is therefore divided into air inlet duct I (2-2-1), two part of air inlet duct II (2-2-2), heat regenerator
In another group of heat exchanger channels be placed in exhaust passage and be connected with exhaust passage, and exhaust passage is therefore divided into I (2-3- of exhaust passage
1), two part exhaust passage II (2-3-2)；Condenser in the heat pump circulating system be installed in dry gas stream system into
Air duct I is interior, evaporator is installed in air inlet duct II.
5. according to claim 1 to heat pump drying device described in 4 any one claims, it is characterised in that: the heat
Pump circulation system further includes superheater (1-6), and superheater is mainly made of heat exchanger II, by pipe fitting, by heat exchanger II
Import be connected with the outlet of evaporator, the outlet of heat exchanger II is connected with the air entry of compressor, and superheater is installed on drying
The endpiece of exhaust passage in air flow system.
6. according to claim 1 to heat pump drying device described in 4 any one claims, it is characterised in that: described is dry
Pathogenic dryness streaming system further includes air-valve group and by-pass (2-9), by-pass (2-9) between air inlet duct and exhaust passage, air-valve group
Including 2 air-valves (2-8-1,2-8-2), an air-valve (2-8-1) is wherein installed in by-pass, is shared in exhaust passage and air inlet duct
Another air-valve (2-8-2)；Or air-valve group includes 3 air-valves, an air-valve is respectively installed in air inlet duct in by-pass, exhaust passage；When
When the air-valve group is adjusted to opening state, the air-valve in air inlet duct, exhaust passage is opened and is communicated respectively with external environment, simultaneously
Air-valve in by-pass (2-9) is closed；When the air-valve group is adjusted to closed state, the air-valve in air inlet duct and exhaust passage is closed
It closes, while the air-valve in by-pass (2-9) is opened, air inlet duct is connected to exhaust passage by by-pass；When the air-valve group needs
When being adjusted to some set angle, the aperture of each air-valve will be in some set angle.
7. according to claim 1 to heat pump drying device described in 4 any one claims, it is characterised in that: described is dry
Pathogenic dryness streaming system further includes sealing plate (2-6) and by-pass (2-9), and sealing plate is logical with external environment respectively by air inlet duct, exhaust passage
Blockage；Between air inlet duct and exhaust passage, air inlet duct is connected to exhaust passage by by-pass (2-9) for by-pass.
8. according to claim 1 to heat pump drying device described in 4 any one claims, it is characterised in that: the heat
Pump circulation system further includes water receiving disc apparatus (1-11), and the water receiving disc apparatus is arranged in below evaporator (1-4).
9. according to claim 1 to heat pump drying device described in 4 any one claims, it is characterised in that: described is dry
Pathogenic dryness streaming system further includes dedusting filter (2-7), and dedusting filter is installed in air inlet duct.
10. according to claim 1 to heat pump drying device described in 4 any one claims, it is characterised in that: described is dry
Hothouse in pathogenic dryness streaming system is configured by heat pump drying device itself or is separately built by user scene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910582842.5A CN110186272A (en) | 2019-07-01 | 2019-07-01 | A kind of heat pump drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910582842.5A CN110186272A (en) | 2019-07-01 | 2019-07-01 | A kind of heat pump drying device |
Publications (1)
| Publication Number | Publication Date |
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| CN110186272A true CN110186272A (en) | 2019-08-30 |
Family
ID=67724423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910582842.5A Withdrawn CN110186272A (en) | 2019-07-01 | 2019-07-01 | A kind of heat pump drying device |
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| CN (1) | CN110186272A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758226A (en) * | 2021-09-13 | 2021-12-07 | 南昌航空大学 | Dryer tail gas waste heat recovery device, dryer and waste heat recovery method |
| WO2023036386A1 (en) * | 2021-09-13 | 2023-03-16 | Lübbers Anlagen- und Umwelttechnik GmbH | Drying device for providing a process gas for a drying system |
-
2019
- 2019-07-01 CN CN201910582842.5A patent/CN110186272A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758226A (en) * | 2021-09-13 | 2021-12-07 | 南昌航空大学 | Dryer tail gas waste heat recovery device, dryer and waste heat recovery method |
| WO2023036386A1 (en) * | 2021-09-13 | 2023-03-16 | Lübbers Anlagen- und Umwelttechnik GmbH | Drying device for providing a process gas for a drying system |
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Application publication date: 20190830 |