CN110030806A - A kind of closed air drying cycles system - Google Patents
A kind of closed air drying cycles system Download PDFInfo
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- CN110030806A CN110030806A CN201910406573.7A CN201910406573A CN110030806A CN 110030806 A CN110030806 A CN 110030806A CN 201910406573 A CN201910406573 A CN 201910406573A CN 110030806 A CN110030806 A CN 110030806A
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- heat
- hothouse
- solar thermal
- air
- thermal collector
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- 238000007605 air drying Methods 0.000 title claims abstract description 24
- 238000001035 drying Methods 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000009825 accumulation Methods 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 230000001351 cycling effect Effects 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 13
- 241000411851 herbal medicine Species 0.000 abstract description 12
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000007602 hot air drying Methods 0.000 abstract description 2
- 239000003507 refrigerant Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- F25B30/02—Heat pumps of the compression type
-
- 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
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
-
- 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
- F26B9/10—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in the open air; in pans or tables in rooms; Drying stacks of loose material on floors which may be covered, e.g. by a roof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/02—Biomass, e.g. waste vegetative matter, straw
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Landscapes
- 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 belongs to hot-air Drying Treatment Technology fields.When in order to solve the drying and processing using existing method progress agricultural product or Chinese herbal medicine, there is a problem of that high energy consumption and efficiency is low, the invention discloses a kind of closed air drying cycles systems.The circulatory system includes air closed cycle unit and heat pump closed cycle unit；Air closed cycle unit includes the solar thermal collector, hothouse and regenerator being sequentially connected in series；Heat pump closed cycle unit includes the compressor, condenser and throttle valve being sequentially connected in series；Wherein, the pipeline between throttle valve and compressor is located inside solar thermal collector, for absorbing solar heat.When carrying out the drying process of the materials such as agricultural product or Chinese herbal medicine using the circulatory system of the invention, the energy consumption of whole system can be not only substantially reduced, cost is reduced, and the utilization rate to heat can be improved, improved and be dried efficiency.
Description
Technical field
The invention belongs to hot-air Drying Treatment Technology fields, and in particular to a kind of closed air drying cycles system.
Background technique
China is agricultural product and Chinese medicine big country, and agricultural product and Chinese herbal medicine not easy to maintain after some pickings are generally needed
Drying and processing is carried out, in time in order to save for a long time.
Currently, the mode for generalling use coal heating, drying or electric heating drying is dried, i.e., by coal
Burning or electric equipment fever carry out heating to air and obtain dry hot-air, are then flowed therethrough and are equipped with by dry hot-air
The equipment of agricultural product or Chinese herbal medicine completes the drying process to agricultural product or Chinese herbal medicine, and the remnants of vapor are carried after handling
Hot-air is directly discharged in atmosphere.This drying process mode, not only will appear in exothermal process the pollution to environment with
And the burning of biggish energy consumption, especially coal can seriously affect air quality, and complete identical agricultural product and Chinese herbal medicine
Drying process process in, need to consume more energy and time to obtain enough hot-airs, therefore that there are energy consumptions is high, dry
The low problem of dry treatment effeciency.
Summary of the invention
When in order to solve the drying and processing using existing method progress agricultural product or Chinese herbal medicine, it is low that there are high energy consumption and efficiencies
The problem of, the invention proposes a kind of closed air drying cycles systems.The circulatory system include air closed cycle unit and
Heat pump closed cycle unit；Wherein,
The air closed cycle unit includes solar thermal collector, hothouse and regenerator；The solar thermal collector
Outlet be connected to the entrance of the hothouse, the outlet of the hothouse is connected to the entrance of the regenerator, the backheat
The outlet of device is connected to the entrance of the solar thermal collector, and material to be dried is placed in the hothouse；
The heat pump closed cycle unit includes compressor, condenser and throttle valve；The outlet of the compressor with it is described
The entrance of condenser is connected to, and the outlet of the condenser is connected to the entrance of the throttle valve, the outlet of the throttle valve and institute
State the entrance connection of compressor；
Pipeline between the throttle valve and the compressor is located inside the solar thermal collector, for absorbing the sun
It can heat.
Preferably, the condenser is located between the outlet of the solar thermal collector and the entrance of the hothouse, and
And the hot-air of the solar thermal collector output flows into the hothouse after the condenser.
Preferably, the pipe in the heat pump closed cycle unit between the throttle valve and the solar thermal collector
Road passes through in the regenerator.
Preferably, the pipeline and the sun being located in the heat pump closed cycle unit inside the solar thermal collector
Aluminium sheet contact and serpentine-like disk cloth inside energy heat collector.
Preferably, multiple porous plates are equipped in the hothouse, and multiple porous plates are successively arranged in parallel in institute
It states between the entrance and exit of hothouse.
It is further preferred that being equipped with multiple accumulation of heat modules in the hothouse, and multiple accumulation of heat module distributions are solid
It is scheduled on multiple porous plates.
It is further preferred that the accumulation of heat module uses solid heat storage module.
Preferably, the solar thermal collector uses PV/T heat collector.
It is further preferred that the circulatory system further includes power unit；The power unit includes battery and inverter,
The input terminal of the battery is connect with the photovoltaic generating module of the PV/T heat collector, the output end of the battery with it is described
The input terminal of inverter connects, and the output end of the inverter is connect with the compressor.
Preferably, the air closed cycle unit further includes blower, and the blower is located at the entrance position of the hothouse
It sets.
The drying process of the materials such as agricultural product or Chinese herbal medicine, tool are carried out using closed air drying cycles system of the invention
Have it is following the utility model has the advantages that
1, in the system of the present invention, the acquisition of heat is carried out to obtain dry hot-air by solar thermal collector
The drying and processing for carrying out material, can reduce the energy consumption and environmental pollution in hot-air acquisition process in this way, utilize simultaneously
Closed circulation system carries out iterative cycles utilization to hot-air, it is possible to prevente effectively from heat caused by when hot-air direct emission
Waste improves the service efficiency to heat, and then improves to drying materials treatment effeciency.
2, the refrigerant tubing in heat pump closed cycle unit in the system of the present invention, is placed directly within solar energy heating
Heat absorption is carried out in device, thus as the steam generator of entire heat pump closed cycle unit.In this way can directly from
The heat that most original is obtained at solar thermal collector, avoids the heat obtained due to solar thermal collector from existing during circulation
Energy loss and heat can be obtained by reducing heat pump closed cycle unit, thus guarantee heat pump closed cycle unit obtain it is highest
Evaporating temperature improves the COP value of heat pump system, and then entire heat pump closed cycle unit is driven to carry out efficient, energy-efficient operating
Work.
3, in the system of the present invention, by the way that condenser is placed between solar thermal collector and hothouse and makes the sun
Can the hot-air of heat collector output pass through condenser, so as to using the release of the heat of condenser to hothouse will be entered
Hot-air carries out reheating heating, is further lifted into dry indoor hot air temperature, and material drying is treated in raising
Drying and processing effect.
4, in the system of the present invention, by will be located in heat pump closed cycle unit throttle valve and solar thermal collector it
Between refrigerant tubing be placed in regenerator, realize to remaining hot-air it is full heat release recycle.In this way, can not only make
Refrigerant tubing is recycled the sensible heat in remaining hot-air, completes primary heat absorption heating, subsequent by too to improve
Positive energy heat collector carries out evaporating temperature when heat double absorption, so that the COP value of entire heat pump closed cycle unit is improved, and
And can also be discharged using latent heat of the refrigerant tubing to hot-air, achieve the effect that cooling, water condensation and dehumidifying, thus
Dry air is obtained, reducing air contained water influences the corrosion failure of component in solar thermal collector, improves making for equipment
Use the service life.
5, in the present invention, by the way that porous plate and accumulation of heat module are arranged in the drying chamber, to improve hot-air in drying
It is indoor to be uniformly distributed and increase dry indoor radiations heat energy, hot-air is imitated in indoor utilize of drying to improve
Rate improves the drying process effect to material.
Detailed description of the invention
Fig. 1 is the system schematic of closed air drying cycles system in embodiment；
Fig. 2 is the schematic diagram of the section structure that solar thermal collector is connect with refrigerant tubing in embodiment；
Fig. 3 is warm to the inlet temperature of regenerator and outlet in closed air drying cycles system operation in embodiment
Degree measures the temperature variation that record obtains；
Fig. 4 is the heat exchange power curve graph of regenerator in closed air drying cycles system operation in embodiment.
Specific embodiment
It describes in detail with reference to the accompanying drawings and examples to technical solution of the present invention.
As shown in connection with fig. 1, the closed air drying cycles system of the present embodiment, the air including the connection that intercouples are closed circuit
Cycling element 1 and heat pump closed cycle unit 2.
Air closed cycle unit 1, including solar thermal collector 11, hothouse 12, regenerator 13 and each for being connected to
The air pipeline 14 of component.Wherein, the outlet of solar thermal collector 11 is connected to the entrance of hothouse 12, the outlet of hothouse 12
It is connected to the entrance of regenerator 13, the outlet of regenerator 13 is connected to the entrance of solar thermal collector 12, is closed to form one
The air circulation unit of formula.At the same time, material to be dried, such as Chinese herbal medicine or crops are placed in hothouse 12.
Heat pump closed cycle unit 2, including compression 21, condenser 22, throttle valve 23 and system for being connected to each component
Cryogen pipeline 24.Wherein, the outlet of compressor 21 is connected to the entrance of condenser 22, outlet and the throttle valve 23 of condenser 22
Entrance connection, the outlet of throttle valve 23 is connected to the entrance of compressor 21.Refrigerant pipe between throttle valve 23 and compressor 21
Road 24 is located inside solar thermal collector 11, for absorbing solar heat.
When carrying out the drying operation of Chinese herbal medicine or crops using the closed air drying cycles system of the present embodiment: first
Chinese herbal medicine to be dried or crops are put in hothouse 12, and installation is attached to all parts；Followed by
The solar energy that solar thermal collector 11 absorbs heats the air inside solar thermal collector 11, it is hereby achieved that temperature
Probably in 40~55 DEG C of hot-air；Then the hot-air obtained flows into progress heat in hothouse 12 by air pipeline 14 and releases
It puts, completes the drying and processing to Chinese herbal medicine or crops, and discharge the remaining hot-air after heat and then flowed into along air pipeline 14
It is again flowed into after being dehumidified in regenerator 13 in solar thermal collector 11, to form circulating for air.
At the same time, the refrigerant tubing 24 in heat pump closed cycle unit 2 between throttle valve 23 and compressor 21
Solar heat directly is absorbed from solar thermal collector 11, the steam generator as entire heat pump closed cycle unit.This
Sample can to avoid the heat obtained as solar thermal collector 11 during circulation caused by energy loss, to guarantee heat pump
Closed cycle unit obtains highest evaporating temperature, improves the COP value of heat pump system, and then drive entire heat pump closed cycle list
Member carries out efficient, energy-efficient operation.
Preferably, as shown in connection with fig. 1, in the present embodiment, by condenser 22 be placed in the outlet of solar thermal collector 11 with
In air pipeline 14 between the entrance of hothouse 12, after so that the hot-air of the output of solar thermal collector 11 is passed through condenser 22 again
It flows into hothouse 12.At this point, the refrigerant in refrigerant tubing 24 turns after absorbing heat in solar thermal collector 11
Become superheated vapor, high pressure high temperature vapor is formed by compression processing into compressor 21, and the high pressure high temperature vapor is entering
Heat occurs with the hot-air of surrounding after condenser 22 and exchanges and release a large amount of heat, thus to the heat for passing through condenser 22
Air carries out reheating, further promotes the hot air temperature flowed into hothouse 12, improves the drying for treating material drying
Treatment effect.
Preferably, as shown in connection with fig. 1, in the present embodiment, will in heat pump closed cycle unit 2 be located at throttle valve 23 with too
Refrigerant tubing 24 between positive energy heat collector 11 is placed in regenerator 13, makes the refrigerant tubing 24 in 23 downstream of throttle valve first
It is then entered back into solar thermal collector 11 into regenerator 13.
It is formed after the processing of the reducing pressure by regulating flow of throttle valve 23 at this point, flowing through condenser 22 and completing the refrigerant that heat discharges
Low-temp low-pressure gas-liquid mixture simultaneously flows into the refrigerant tubing 24 for being located at regenerator 13, at the same time, it is complete to pass through hothouse 12
Then pass through air pipeline 14 at the remaining hot-air of drying and processing to flow in regenerator 13.In this way, low in refrigerant tubing 24
Warm low-pressure gas-liquid mixture occurs heat with hot-air remaining in regenerator 13 again and exchanges, and is inhaled by low-temp low-pressure gas-liquid mixture
The after-heat in remaining hot-air is received, the primary heat absorption heating to low-temp low-pressure gas-liquid mixture can be not only completed, improve
The subsequent evaporating temperature after solar thermal collector 11 carries out heat double absorption, to improve entire heat pump closed cycle list
The COP value of member 2, and during being recycled to the after-heat in remaining hot-air, it also completes to hot empty
The dehumidifying purpose that gas reduces water condensation avoids air contained water to solar energy heating so that the water content in air be greatly lowered
The corrosion failure of component influences in device 11, improves the service life of equipment.
Further, operation test is carried out to the closed air drying cycles system in the present embodiment, and in the process
Relevant parameter acquisition is carried out to regenerator, its heat recovery and heat switching performance are verified.Wherein, in operational process
Regenerator carry out inlet temperature, inlet air humidity, outlet temperature, exhaust air humidity and air quality flow are examined
Survey record.
By the detection and thus obtained temperature that carry out inlet temperature and outlet temperature to the regenerator in operation 1 hour
It is poor to spend, and obtains temperature curve as shown in Figure 3.According to Fig.3, it is found that in the test run incipient stage, due to solar energy collection
Hot device is just run, and into the thermal Finite of whole system, causes the air themperature in drying box lower, and then make regenerator
Inlet temperature is relatively low, the subsequent increase that heat is absorbed with solar thermal collector, and the air themperature into regenerator is also continuous
It increases, wherein during entire test run, minimum 9.39 DEG C of the inlet temperature of regenerator, up to 38.04 DEG C.Backheat
The outlet temperature of device occurs of short duration reduction in the test run incipient stage, then persistently increases with inlet temperature, wherein
During entire test run, minimum 8.80 DEG C of the outlet temperature of regenerator, up to 28.60 DEG C.In the process, pass through
Record tracking to inlet temperature and outlet temperature, after heat exchange is steady, temperature difference has small the out temperature difference of regenerator
Amplitude reduction then increases, and during later, although there is reduction, amplitude is smaller, and temperature difference is minimum in whole process
It is 0.039 DEG C, maximum simultaneously to maintain 10.43 DEG C, for inlet temperature, the cooling extent for flowing through air after regenerator reaches
To 30% or so, splendid cooling effect is obtained.
At the same time, by carrying out inlet air humidity, exhaust air humidity and sky to the regenerator in operation 1 hour
The detection of gas mass flow, and obtain heat exchange power curve graph as shown in Figure 4 by calculating, wherein by air themperature and
The calculating of humidity obtains corresponding enthalpy, and then obtains final heat exchange power in conjunction with air quality flow.According to Fig. 3 and Fig. 4 institute
Show it is found that, with the increase of the inlet and outlet temperature difference of regenerator, enthalpy of humid air difference becomes larger, regenerator during test run
Internal heat exchange power becomes larger, in this stage by acquisition and recording and calculating of the interval 5s to data, in test run in 1 hour
The heat exchange amount in regenerator has reached 2706.614KJ altogether in the process, which obtains splendid waste heat recovering effect.
Preferably, as shown in connection with fig. 2, the refrigerant tubing 24 being located in solar thermal collector 11 is subjected to snakelike disk laying
It sets and is directly developed with aluminium sheet 111 and contacted, so as to increase refrigerant tubing 24 to greatest extent in solar thermal collector
Flushing time in 11 and contact area and heat exchanger effectiveness in the process, and then more heats are absorbed, it obtains more
High evaporating temperature.
In addition, as shown in connection with fig. 1, multiple porous plates 121 are equipped in the hothouse 12 of the present embodiment, for orderly arranging
Material to be dried, and multiple porous plates 121 are substantially diagonally arranged between the entrance and exit for being fixed on hothouse 12.This
Sample, flow into hothouse 12 hot-air successively can be dispersed and be circulated by the through-hole on porous plate 121, and then with have
The material to be dried of sequence arrangement carries out sufficiently effectively contact, improves the drying process efficiency for treating material drying, avoids to be dried
The problem of material is directly integrally stacked and can not effectively be contacted with hot-air.
It is further preferred that be additionally provided with multiple accumulation of heat modules 122 in hothouse 12, and it is evenly distributed on different more
On orifice plate 121.In this way, not only realization can be absorbed and released to heat in hothouse 12 to heat by accumulation of heat module 122
The balance and stability of temperature, to compensate the problem of caused hot-air heat reduces when solar radiation deficiency and absorb buffering heat
Heat when air temperature is too high causes high temperature to avoid material drying is treated, but also can use multiple accumulation of heat modules
122 increase the Radiant exothermicity in hothouse 12, further increase the drying effect for treating material drying.Wherein, in this implementation
In example, accumulation of heat module 122 uses the accumulation of heat module of solid porous form, such as porous ceramics gitter brick or porous regenerator stone, together
Sample can also use the accumulation of heat module 122 of other structures form in other embodiments.
In addition, being additionally provided with a blower 15 in air closed cycle unit 1.Wherein, blower 15 is located at hothouse 12
Entry position carries out steady flow as the air in the power part driving air closed cycle unit 1 of air flowing.Together
When, in the outlet of hothouse 12, setting is additionally provided with a flowmeter 16, for monitoring the throughput for flowing through hothouse 12, Jin Erpei
It closes blower 15 and controls speed air flow, guarantee the drying effect for treating material drying.
As shown in connection with fig. 1, the solar thermal collector 11 in the present embodiment can select the PV/T for having photovoltaic power generation function
Heat collector improves the utilization rate to solar energy to realize solar power generation.
Preferably, as shown in connection with fig. 1, the closed air drying cycles system of the present embodiment further includes power unit 3.Electric power
Unit 3 includes battery 31 and inverter 32, wherein the input terminal of battery 31 passes through the photovoltaic of conducting wire 33 and PV/T heat collector
The output end of electricity generation module connection, battery 31 is connect by conducting wire 33 with the input terminal of inverter 32, the output of inverter 32
End is connect with compressor 21 and blower 15 respectively by conducting wire 33.In this way, can use solar power generation supplement, air is closed circuit follows
Ring element 1 and heat pump closed cycle unit 2 are to the usage amount of external electric energy, to reduce entire closed air drying cycles system
Energy consumption, improve whole system long-time steady operation process economy.
Claims (10)
1. a kind of closed air drying cycles system, which is characterized in that including air closed cycle unit and heat pump closed cycle
Unit；Wherein,
The air closed cycle unit includes solar thermal collector, hothouse and regenerator；The solar thermal collector goes out
Mouth is connected to the entrance of the hothouse, and the outlet of the hothouse is connected to the entrance of the regenerator, the regenerator
Outlet is connected to the entrance of the solar thermal collector, and material to be dried is placed in the hothouse；
The heat pump closed cycle unit includes compressor, condenser and throttle valve；The outlet of the compressor and the condensation
The entrance of device is connected to, and the outlet of the condenser is connected to the entrance of the throttle valve, the outlet of the throttle valve and the pressure
The entrance of contracting machine is connected to；
Pipeline between the throttle valve and the compressor is located inside the solar thermal collector, for absorbing solar heat
Amount.
2. closed air drying cycles system according to claim 1, which is characterized in that the condenser be located at it is described too
Between the outlet and the entrance of the hothouse of positive energy heat collector, and the hot-air of solar thermal collector output passes through institute
The hothouse is flowed into after stating condenser.
3. closed air drying cycles system according to claim 1, which is characterized in that the heat pump closed cycle unit
In pipeline between the throttle valve and the solar thermal collector pass through in the regenerator.
4. closed air drying cycles system according to claim 1, which is characterized in that the heat pump closed cycle unit
In the pipeline that is located inside the solar thermal collector contacted with the aluminium sheet inside the solar thermal collector and serpentine-like disk
Cloth.
5. closed air drying cycles system described in any one of -4 according to claim 1, which is characterized in that the drying
Interior be equipped with multiple porous plates, and multiple porous plates be successively arranged in parallel in the hothouse entrance and exit it
Between.
6. closed air drying cycles system according to claim 5, which is characterized in that be equipped in the hothouse multiple
Accumulation of heat module, and multiple accumulation of heat module distributions are fixed on multiple porous plates.
7. closed air drying cycles system according to claim 6, which is characterized in that the accumulation of heat module uses solid
Accumulation of heat module.
8. closed air drying cycles system described in any one of -4 according to claim 1, which is characterized in that the sun
Energy heat collector uses PV/T heat collector.
9. closed air drying cycles system according to claim 8, which is characterized in that the circulatory system further includes electric power
Unit；The power unit includes battery and inverter, the photovoltaic of the input terminal of the battery and the PV/T heat collector
Electricity generation module connection, the output end of the battery connect with the input terminal of the inverter, the output end of the inverter and
The compressor connection.
10. closed air drying cycles system described in any one of -4 according to claim 1, which is characterized in that the sky
Gas-tight road cycling element further includes blower, and the blower is located at the entry position of the hothouse.
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| CN110487064A (en) * | 2019-09-20 | 2019-11-22 | 河南科技大学 | A kind of heat pump drying device |
| CN111669122A (en) * | 2020-06-08 | 2020-09-15 | 陆林娣 | Automatic cooling system and cooling method for photovoltaic cell panel |
| CN114214176A (en) * | 2021-12-29 | 2022-03-22 | 国网江苏省电力有限公司经济技术研究院 | Solar energy, ground source heat pump and methane tank, crops drying combined operation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN209991683U (en) * | 2018-09-10 | 2020-01-24 | 兰州理工大学 | Closed air drying circulation system |
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