CN109618687A - Heat pump-solution dehumidification joint grain during procedure of storing grain drying and deepfreeze composite system - Google Patents
Heat pump-solution dehumidification joint grain during procedure of storing grain drying and deepfreeze composite system Download PDFInfo
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- CN109618687A CN109618687A CN201910097016.1A CN201910097016A CN109618687A CN 109618687 A CN109618687 A CN 109618687A CN 201910097016 A CN201910097016 A CN 201910097016A CN 109618687 A CN109618687 A CN 109618687A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F25/00—Storing agricultural or horticultural produce; Hanging-up harvested fruit
- A01F25/16—Arrangements in forage silos
- A01F25/22—Ventilating arrangements
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B9/00—Preservation of edible seeds, e.g. cereals
- A23B9/08—Drying; Subsequent reconstitution
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B9/00—Preservation of edible seeds, e.g. cereals
- A23B9/10—Freezing; Subsequent thawing; Cooling
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- 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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- 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
- F26B2200/06—Grains, e.g. cereals, wheat, rice, corn
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
-
- 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
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Environmental Sciences (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-solution dehumidification joint grain during procedure of storing grain drying and deepfreeze composite systems, belong to Grain Ventilation drying and cryopreservation technical field.The system includes silo ventilating system, refrigeration cycle I, refrigeration cycle II and solution dehumidification circulation.Outdoor air first passes through heat exchanger and exchanges heat with air draft in storehouse, is sent into dehumidifier after cooled and dehumidifies, passes through evaporator and cool down, and the dry air of acquisition is sent into silo, and the high moisture grain newly to put in storage is dried.The system had not only had grain during procedure of storing grain functions/drying, but also was able to achieve the cryopreservation of grain.The drive energy that system uses condensation waste heat to recycle as solution dehumidification has carried out cold recovery, energy saving of system significant effect to air draft in storehouse additionally by setting heat exchanger.
Description
Technical field
The present invention relates to Grain Ventilation drying and cryopreservation technical fields, particularly relate to heat pump-solution dehumidification joint grain
Eat drying generator and deepfreeze composite system.
Background technique
Due to being influenced by weather conditions and harvesting mode, such as mechanized harvest receives grain concentration and has little time sufficiently to dry,
The phenomenon that grain is directly entered without drying mostly and stores up link, this results in high moisture grain directly to put in storage.In order to guarantee
The safe storage of grain, it is necessary to carry out appropriate drying process to it, and existing drying means, such as dried using dryer
It is dry to need to consume a large amount of fossil energy, it is at high cost, and natural draft drying, time-consuming, by external environment inside even from weather
Greatly.Solution dehumidification is a kind of a kind of method using liquid-absorbent solution dehumidification, and solution regeneration temperature is low, can use low-grade
Energy such as heat pump condensation waste heat, solar energy etc., energy saving of system significant effect, at present solution dehumidification in grain drying using fresh
It has been reported that.It is stable using the drying means of solution dehumidification, it can all be played under annual high temperature and humidity and low temperature and high relative humidity operating condition
Good effect on moisture extraction.Solution dehumidification is combined with heat pump system, and air-supply temperature can be preferably controlled in the case where meeting dehumidification requirements
Degree；In addition, the condensation waste heat of heat pump system is alternatively arranged as the drive energy of solution dehumidification, system whole energy significant effect, fortune
Row is at low cost, this has Great significance for the difficult problems for solving high moisture grain drying generator storage.
Low-temperature grain-storage refers to can be by grain temperature control system in 15 DEG C of storage technologies below, and low-temperature grain-storage can improve in grain heap
Ecological environment presses down mycostatic generation and development, slows down pest growth rate, reduce and avoid insect pest, moisture condensation, fever,
The Probability of mildew is avoided because using chemical agent to carry out stifling and protect caused chemical agent remain etc. to pollute to people
Health bring potential hazard and environmental pollution.Low-temperature grain-storage can reduce grain respiratory capacity, lower the new old of grain
Metabolism extends storage time, and taking grain out of a granary to sun it during foodstuff preservation is in addition also reduced or avoided, and saves man power and material.Low temperature storage
Grain is the prefered method of green grain storage.Mechanical refrigeration low-temperature grain-storage method is one kind of low-temperature grain-storage technology, compared to utilize nature
The low-temperature grain-storage technology of cooling capacity, it is not limited by natural temperature, and use scope is more extensive.
Summary of the invention
The present invention proposes heat pump-solution dehumidification joint grain during procedure of storing grain drying and deepfreeze composite system, solves grain just
The problems such as storehouse drying and cryopreservation.
The technical scheme of the present invention is realized as follows:
Heat pump-solution dehumidification joint grain during procedure of storing grain drying and deepfreeze composite system, including silo ventilating system, refrigeration cycle
I system, II system of refrigeration cycle and the solution dehumidification circulatory system；Silo ventilating system includes air heat exchanger, blower I, dehumidifying
Device and evaporator, I system of refrigeration cycle include compressor II, air cooled condenser II, expansion valve II and evaporator, refrigeration cycle
II system includes compressor I, tube-in-tube condenser, flow control valve, air cooled condenser I, expansion valve I and bushing type evaporation
Device, the solution dehumidification circulatory system include blower II, air cooled condenser II and regenerator.
Volume damper III, air heat exchanger outlet and I import phase of blower are equipped between the air heat exchanger and fresh air
Even, the air outlet slit of dehumidifier is connected with evaporator, and evaporator air outlet connection silo, the return air inlet of silo is divided to two
Road connects by the air supply pipeline between volume damper I and air heat exchanger and blower I all the way, and another way is changed by air
Then hot device connects through volume damper II with outside atmosphere.
The compressor II is connected with air cooled condenser II, and air cooled condenser II is connected with expansion valve II, expansion valve
II is connected with evaporator, and evaporator is connected with compressor II again.
The compressor I connects with tube-in-tube condenser, and tube-in-tube condenser divides two-way, all the way with flow control valve phase
Even, another way connects with air cooled condenser I, and flow control valve and air cooled condenser I converge to connect with expansion valve I afterwards, swollen
Swollen valve I connects with bushing type evaporator, and bushing type evaporator is connected with compressor I, and air cooled condenser I is opposite with blower III to be set
It sets.
The blower II outlet with flow through air cooled condenser II and be connected, air cooled condenser II, dehumidification solution case is divided to two
Road is connected with flow control valve III all the way, and another way is connected with after flow control valve IV with plate heat exchanger, plate-type heat-exchange
The outlet of device converges with I pipeline of flow control valve, connects after converging with flow pump, and flow pump connects with tube-in-tube condenser, set
Trumpet cooler connects with regenerator, and air cooled condenser II is connected with regenerator, and regenerator is connected with actified solution case, regeneration
Liquor box divides two-way, is connected all the way with flow control valve I, and another way is connected with flow control valve II, flow control valve II and plate
Formula heat exchanger is connected, and another outlet of plate heat exchanger is connected after pipeline converges with solution pump II with flow control valve III, molten
Liquid pump II is connected with bushing type evaporator, and bushing type evaporator is connected with dehumidifier, and dehumidifier is connected with dehumidification solution case again.
It is connected by pipeline between each equipment.
The setting of drying generator process, silo ventilating system: volume damper I is closed, and volume damper II, air quantity are adjusted
Valve III is opened, and solution dehumidification circulation, refrigeration cycle I and refrigeration cycle II are in operating status；The cryopreservation stage；Silo is logical
Wind system: volume damper II, volume damper III are closed, and volume damper I is opened, and I system of refrigeration cycle operation, refrigeration is followed
II system of ring and the solution dehumidification circulatory system are not run.
The beneficial effects of the present invention are:
1, this system produces dry air by the method that heat pump-solution dehumidification combines, and realizes grain during procedure of storing grain functions/drying, empty
The humidity load of gas is undertaken by solution dehumidification completely, and evaporator only undertakes the sensible heat load of air, therefore the performance demands of heat pump cycle
Number is higher.In addition, the drive energy of solution dehumidification circulation takes full advantage of the condensation waste heat of refrigeration cycle, so the section of system again
It can significant effect.
2, there are II two refrigeration cycle of refrigeration cycle I and refrigeration cycle, drying generator stage, two systems in present system
The dehumidifying of SAPMAC method combined soln is recycled while being run, and the low-temperature grain-storage stage, only runs a refrigeration cycle.This operational mode
It is easy to implement switching of the grain during procedure of storing grain drying stage to the cryopreservation stage, set of device is able to achieve two functions, this is greatly mentioned
High utilization rate of equipment and installations, can reduce equipment cost investment, while being also convenient for realizing the automation control of grain storage whole process.
3, by setting air heat exchanger, the recycling of return air cooling capacity in storehouse is realized, the fractional energy savings of system is improved.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is that heat pump of the present invention-solution dehumidification combines grain during procedure of storing grain drying and the structural representation of deepfreeze composite system
Figure.
In figure, 1 is regenerator, and 2 be actified solution case, and 3 be dehumidifier, and 4 be dehumidification solution case, and 5 be flow control valve I, 6
It is flow control valve III, 11 for flow control valve II, 10 is flow control valve IV, 7 be plate heat exchanger, and 8 be that solution pump I, 9 is
Solution pump II, 12 be compressor I, 20 be compressor II, and 13 be tube-in-tube condenser, and 14 be air cooled condenser I, 21 be air-cooled
Formula condenser II, 15 be flow control valve, and 16 be expansion valve I, 22 be expansion valve II, and 17 be bushing type evaporator, and 18 be blower
I, 24 be blower II, 26 be blower III, and 19 be air heat exchanger, and 23 be evaporator, and 25 be volume damper I, 27 be air quantity tune
Section valve II, 28 is volume damper III.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution of the present invention is clearly and completely described, it is clear that institute
The embodiment of description is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention,
Those of ordinary skill in the art's every other embodiment obtained under that premise of not paying creative labor, belongs to this hair
The range of bright protection.
As shown in Figure 1, the embodiment of the invention provides a kind of heat pump-solution dehumidification joint grain during procedure of storing grain drying and low temperature colds
Hide composite system, including silo ventilating system, I system of refrigeration cycle, II system of refrigeration cycle and the solution dehumidification circulatory system；Grain
Storehouse ventilating system includes air heat exchanger 19, blower I 18, dehumidifier 3 and evaporator 23, and I system of refrigeration cycle includes compressor
II 20, air cooled condenser II 21, expansion valve II 22 and evaporator 23, II system of refrigeration cycle include compressor I 12, bushing type
Condenser 13, flow control valve 15, air cooled condenser I 14, expansion valve I 16 and bushing type evaporator 17, solution dehumidification circulation
System includes blower II 24, air cooled condenser II 21 and regenerator 1.
Volume damper III 28, the outlet of air heat exchanger 19 and blower I are equipped between the air heat exchanger 19 and fresh air
18 imports are connected, and the air outlet slit of dehumidifier 3 is connected with 23 import of evaporator, and 23 air outlet slit of evaporator connects silo, silo
Return air inlet divide two-way, all the way by air supply pipeline phase between volume damper I 25 and air heat exchanger 19 and blower I 18
It connects, then another way is connected through volume damper II 27 with outside atmosphere by air heat exchanger 19.
The compressor II 20 is connected with air cooled condenser II 21, air cooled condenser II 21 and II 22 phase of expansion valve
Even, expansion valve II 22 is connected with evaporator 23, and evaporator 23 is connected with compressor II 20 again.
The compressor I 12 connects with tube-in-tube condenser 13, and tube-in-tube condenser 13 divides two-way, adjusts all the way with flow
Valve 15 is connected, and another way connects with air cooled condenser I 14, flow control valve 15 and air cooled condenser I 14 converge afterwards with it is swollen
Swollen valve I 16 connects, and expansion valve I 16 connects with bushing type evaporator 17, and bushing type evaporator 17 is connected with compressor I 12, air-cooled
Formula condenser I 14 is oppositely arranged with blower III 26.
The blower II 24 outlet with flow through air cooled condenser II 21 and be connected, dehumidification solution case 4 divides two-way, all the way with stream
Adjustable valve III 10 is connected, and another way is connected with after flow control valve IV 11 with plate heat exchanger 7, plate heat exchanger 7
Outlet converges with I 5 pipeline of flow control valve, connects after converging with flow pump 8, and flow pump 8 connects with tube-in-tube condenser 13, set
Trumpet cooler 13 connects with regenerator 1, and air cooled condenser II 21 is connected with regenerator 1, regenerator 1 and actified solution case 2
It is connected, actified solution case 2 divides two-way, is connected all the way with flow control valve I 5, and another way is connected with flow control valve II 6, flow
Regulating valve II 6 is connected with plate heat exchanger 7, and another outlet of plate heat exchanger 7 and flow control valve III 10 are after pipeline converges
It is connected with solution pump II 9, solution pump II 9 is connected with bushing type evaporator 17, and bushing type evaporator 17 is connected with dehumidifier 3, removes
Wet device 3 is connected with dehumidification solution case 4 again.
It is connected by pipeline between each equipment.
The setting of drying generator process, silo ventilating system: volume damper I 25 is closed, volume damper II 27, air quantity
Regulating valve III 28 is opened, and solution dehumidification circulation, refrigeration cycle I and refrigeration cycle II are in operating status；The cryopreservation stage；
Silo ventilating system: volume damper II 27, volume damper III 28 are closed, and volume damper I 25 is opened, and refrigeration cycle I is transported
Row, refrigeration cycle II and solution dehumidification circulation are not run.
Working mechanism of the invention are as follows:
Silo ventilating system (drying generator stage) course of work is as follows: outdoor fresh air is by volume damper III 28, into sky
Gas heat exchanger 19 exchanges heat with air draft in storehouse, enters dehumidifier 3 through blower I 18 after being cooled and dehumidification solution carries out heat, matter
It exchanges, the moisture in air enters solution, and air is dehumidified.Dry air after dehumidifying enter evaporator 23 and refrigerant into
Row heat exchange is sent into silo after cooled and high moisture grain is dried, outside absorption grain waste heat, remaining wet heel row export,
It exchanges heat through air heat exchanger 19 with by the outdoor air of volume damper III 28, by volume damper after temperature raising
II 27 are discharged into atmosphere, and volume damper I 25 is in close state during this.
Silo ventilating system (deepfreeze stage): after return air is adjusted by volume damper I 25 in storehouse, through blower I 18
Into dehumidifier 3(, dehumidifier 3 is not run at this time), it then flows through evaporator 23 and exchanges heat with refrigerant, be sent into after cooled
Silo, absorb it is wet more than grain waste heat after, again flow through volume damper I 25, volume damper II 27, air quantity are adjusted during this
Valve III 28 is in close state, to complete a circulation.
Refrigeration cycle I: low-temperature low-pressure refrigerant gas is compressed through compressor II 20, and compressed high temperature and high pressure gas enters
After it is cooling that air cooled condenser II 21 is reproduced air, condenses into highly pressurised liquid, then expanded valve II 22 throttles, become low pressure,
Low temperature damp steam exchanges heat into evaporator 23 and the dry air from dehumidifier 3, therein after absorbing atmospheric heat
Low pressure liquid gasifies again in evaporator, then flows into compressor II 20 and is re-compressed, completes a circulation.
Refrigeration cycle II: low-temperature low-pressure refrigerant gas is compressed through compressor I 12, and compressed high temperature and high pressure gas enters
Tube-in-tube condenser 13 with flow through solution pump I 8 weak solution exchange heat, be cooled after enter air cooled condenser I 14 by air into
One step is cooling, condenses into highly pressurised liquid.If the condensation heat that tube-in-tube condenser 13 undertakes and cooling system amount, compressor wasted work
When reaching balance, refrigerant is after the outflow of tube-in-tube condenser 13, directly through regulating valve 15, air-cooled condenser not work at this time
Make, otherwise flow control valve 15 is closed.Highly pressurised liquid flow through expansion valve I 16 throttling, become low pressure, low temperature damp steam, then into
Enter bushing type evaporator 17 and exchanges heat with the solution for flowing through solution pump II 9, after the heat of absorbent solution, low pressure liquid therein
Refrigerant gasifies again in evaporator, then flows through compressor I 12 and is re-compressed, and recycles so as to complete one.
Solution dehumidification circulation: divide two-way by the solution that dehumidification solution case 4 flows out, flow through flow control valve III 10 all the way, separately
Weak solution passes through flow control valve IV 11 all the way, flows through plate heat exchanger 7 and flows through the heat exchange of II 6 concentrated solution of flow control valve, quilt
It is mixed in a certain ratio after heat temperature raising with the concentrated solution for flowing through flow control valve I 5, then enters under the action of flow pump 8
Tube-in-tube condenser 13 and refrigerant heat exchanger therein enter regenerator 1 after being heated up, with process air cooled condenser II
The air of 21 heating carries out heat, mass transter, and the moisture in solution enters air, and solution concentration, which increases, becomes concentrated solution.After regeneration
Concentrated solution flow into actified solution case 2, divide two-way to flow through flow control valve I 5 all the way, another way flows through flow control valve II 6, so
It exchanges heat afterwards into plate heat exchanger 7 with the solution for flowing through flow control valve IV 11, be cooled cooling, then and from dehumidification solution
Case 4, the weak solution for flowing through flow control valve III 10 are mixed in a certain ratio.Mixed solution under the action of solution pump II 9,
Bushing type evaporator 17 and refrigerant heat exchanger therein are flowed through, enters dehumidifier 3 after the cooling that is cooled, with entrance dehumidifier 3
Air carries out heat, mass transter, and solution absorbs the moisture in air, and solution concentration, which reduces, becomes weak solution, flows into dehumidification solution case
4, to complete a circulation.
Solution dehumidification cyclic part, the course of work of regeneration air: it is cold to flow through air-cooled type under the effect of blower II 24 for fresh air
Condenser II 21 and refrigerant heat exchanger therein enter regenerator 1 and weak solution therein carry out heat, matter is handed over after being heated up
It changes, is discharged into atmosphere after the moisture in absorbent solution.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. heat pump-solution dehumidification joint grain during procedure of storing grain drying and deepfreeze composite system, it is characterised in that: divulge information including silo
System, I system of refrigeration cycle, II system of refrigeration cycle and the solution dehumidification circulatory system；Silo ventilating system includes air heat-exchange
Device (19), blower I (18), dehumidifier (3) and evaporator (23), I system of refrigeration cycle include that compressor II (20), air-cooled type are cold
Condenser II (21), expansion valve II (22) and evaporator (23), II system of refrigeration cycle include compressor I (12), bushing type condensation
Device (13), flow control valve (15), air cooled condenser I (14), expansion valve I (16) and bushing type evaporator (17), solution removes
The wet circulatory system includes blower II (24), air cooled condenser II (21), regenerator (1), dehumidification solution case (4), flow adjusting
Valve III (10), flow control valve IV (11), plate heat exchanger (7), flow control valve II (6), flow control valve I (5), flow pump
(8), tube-in-tube condenser (13), actified solution case (2) and solution pump II (9).
2. heat pump according to claim 1-solution dehumidification joint grain during procedure of storing grain drying and deepfreeze composite system, special
Sign is: between the air heat exchanger (19) and fresh air be equipped with volume damper III (28), air heat exchanger (19) outlet with
Blower I (18) import is connected, and dehumidifier (3) is connected with evaporator (23), and evaporator (23) connects silo, the return air inlet point of silo
Two-way connects by the air supply pipeline between volume damper I (25) and air heat exchanger (19) and blower I (18), separately all the way
All the way by air heat exchanger (19), then connect through volume damper II (27) with outside atmosphere.
3. heat pump according to claim 2-solution dehumidification joint grain during procedure of storing grain drying and deepfreeze composite system, special
Sign is: the compressor II (20) is connected with air cooled condenser II (21), air cooled condenser II (21) and expansion valve II
(22) it is connected, expansion valve II (22) is connected with evaporator (23), and evaporator (23) is connected with compressor II (20) again.
4. heat pump according to claim 3-solution dehumidification joint grain during procedure of storing grain drying and deepfreeze composite system, special
Sign is: the compressor I (12) connects with tube-in-tube condenser (13), and tube-in-tube condenser (13) divides two-way, all the way with stream
Adjustable valve (15) is connected, and another way connects with air cooled condenser I (14), flow control valve (15) and air cooled condenser I
(14) connect after converging with expansion valve I (16), expansion valve I (16) connects with bushing type evaporator (17), bushing type evaporator
(17) it is connected with compressor I (12), air cooled condenser I (14) is oppositely arranged with blower III (26).
5. heat pump according to claim 4-solution dehumidification joint grain during procedure of storing grain drying and deepfreeze composite system, special
Sign is: the blower II (24) outlet with flow through air cooled condenser II (21) and be connected, dehumidification solution case (4) divides two-way, one
Road is connected with flow control valve III (10), and another way is connected after flow control valve IV (11) with plate heat exchanger (7), board-like
The outlet of heat exchanger (7) converges with flow control valve I (5) pipeline, connects after converging with flow pump (8), flow pump (8) and casing
Formula condenser (13) connects, and tube-in-tube condenser (13) connects with regenerator (1), air cooled condenser II (21) and regenerator
(1) be connected, regenerator (1) is connected with actified solution case (2), and actified solution case (2) divides two-way, all the way with flow control valve I (5)
It is connected, another way is connected with flow control valve II (6), and flow control valve II (6) is connected with plate heat exchanger (7), plate-type heat-exchange
Another outlet of device (7) is connected after pipeline converges with solution pump II (9) with flow control valve III (10), solution pump II (9) with
Bushing type evaporator (17) be connected, bushing type evaporator (17) is connected with dehumidifier (3), dehumidifier (3) again with dehumidification solution case
(4) it is connected.
6. solution dehumidification joint grain during procedure of storing grain is dry and deepfreeze is compound for heat pump according to claim 1-5-
System, it is characterised in that: the setting of drying generator process, silo ventilating system: volume damper I (25) is closed, and air quantity is adjusted
Valve II (27), volume damper III (28) are opened, and solution dehumidification circulation, refrigeration cycle I and refrigeration cycle II are in operation shape
State；The cryopreservation stage；Silo ventilating system: volume damper II (27), volume damper III (28) are closed, volume damper
I (25) are opened, and the operation of I system of refrigeration cycle, II system of refrigeration cycle and the solution dehumidification circulatory system are not run.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910097016.1A CN109618687B (en) | 2019-01-31 | 2019-01-31 | Heat pump-solution dehumidification combined grain in-warehouse drying and low-temperature refrigeration composite system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910097016.1A CN109618687B (en) | 2019-01-31 | 2019-01-31 | Heat pump-solution dehumidification combined grain in-warehouse drying and low-temperature refrigeration composite system |
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| CN109618687A true CN109618687A (en) | 2019-04-16 |
| CN109618687B CN109618687B (en) | 2023-04-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109998062A (en) * | 2019-04-28 | 2019-07-12 | 中原工学院 | The green garlic preparation system of heat-pump-type |
| CN110013019A (en) * | 2019-04-28 | 2019-07-16 | 中原工学院 | Green garlic based on heat pump techniques is produced and cryopreservation composite system |
| CN110388815A (en) * | 2019-08-13 | 2019-10-29 | 河南中瑞制冷科技有限公司 | The multi-air condition system and its working method dry for grain depot |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109998062A (en) * | 2019-04-28 | 2019-07-12 | 中原工学院 | The green garlic preparation system of heat-pump-type |
| CN110013019A (en) * | 2019-04-28 | 2019-07-16 | 中原工学院 | Green garlic based on heat pump techniques is produced and cryopreservation composite system |
| CN110013019B (en) * | 2019-04-28 | 2023-10-27 | 中原工学院 | Green garlic preparation and low-temperature storage composite system based on heat pump technology |
| CN109998062B (en) * | 2019-04-28 | 2023-12-05 | 中原工学院 | Heat pump type green garlic preparation system |
| CN110388815A (en) * | 2019-08-13 | 2019-10-29 | 河南中瑞制冷科技有限公司 | The multi-air condition system and its working method dry for grain depot |
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