CN109974146A - For the solution dehumidification system and operation method of the dehumidifying of freezer hallway - Google Patents
For the solution dehumidification system and operation method of the dehumidifying of freezer hallway Download PDFInfo
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- CN109974146A CN109974146A CN201910205914.4A CN201910205914A CN109974146A CN 109974146 A CN109974146 A CN 109974146A CN 201910205914 A CN201910205914 A CN 201910205914A CN 109974146 A CN109974146 A CN 109974146A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
- F24F3/1417—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with liquid hygroscopic desiccants
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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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/045—Air flow control arrangements
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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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
-
- 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
- F25D21/04—Preventing the formation of frost or condensate
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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
- F25D29/00—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/1458—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification using regenerators
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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
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/041—Treating air flowing to refrigeration compartments by purification
- F25D2317/0411—Treating air flowing to refrigeration compartments by purification by dehumidification
- F25D2317/04111—Control means therefor
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
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- Central Air Conditioning (AREA)
Abstract
The invention discloses a kind of solution dehumidification systems for the dehumidifying of freezer hallway, including fluid reservoir, the fluid reservoir is respectively communicated with the first liquid gas heat exchanger of refrigerator and the second liquid gas heat exchanger of freezer by branch, the First Heat Exchanger is connected to the first dehumidifier, the first dehumidifier outlet is connected to by a branch with the first liquid gas heat exchanger, it is connected to by another branch with solution regenerator, the second liquid gas heat exchanger is connected to the second dehumidifier, the second dehumidifier outlet is connected to by a branch with the second liquid gas heat exchanger, it is connected to by another branch with solution regenerator, the air inlet of first dehumidifier is connected to blower, gas outlet is respectively communicated with freezer hallway and the second dehumidifier by pipeline.The present invention inhibits the generation of frost in freezer in root, while not influencing the normal operation of cold storage refrigerating system, guarantees the product quality of refrigeration object, and meets the economy and energy saving of freezer operation.
Description
Technical field
The present invention relates to refrigerations and air handling system and operation, and in particular to a kind of solution for the dehumidifying of freezer hallway
Dehumidification system and operation method.
Background technique
Currently, with the continuous improvement of people's living standards and shopping at network flourish, China's Cold Chain Logistics row
Industry steps into Rapid development stage, and all kinds of freezers play vital role wherein.In China, freezer energy consumption is accounted for
Than reach entire Cold Chain Logistics industry energy consumption 70% or more, and its specific energy consumption level has larger difference compared to developed country
Away from.Therefore, the energy consumption level for reducing freezer is of great significance for China's energy-saving and emission-reduction cause.
In general, independent vapour compression refrigeration system is equipped in all kinds of freezers, system is mainly by evaporator, pressure
Contracting machine, condenser, expansion valve, gas-liquid separator, liquid storage device, various kinds of sensors and electronic control unit composition.Wherein, it evaporates
Device (coil pipe) is placed in inside freezer, and the sensible heat and latent heat handled in library by way of to the cooling of freezer inner circulating air is born
Lotus.Due to the intrinsic propesties of such air-treatment mode, evaporator (coil pipe) surface temperature of cold storage refrigerating system often will
Lower than the dew-point temperature of circulation air inside freezer, or even in most cases, evaporator (coil pipe) surface temperature will be lower than 0
℃.It is frosted at this point, moisture can be precipitated when freezer inner circulating air flows through evaporator surface and inevitably condense.Evaporation
The frost layer on device surface can not only greatly increase the thermal resistance on its surface, also will increase the resistance that air processed flows therebetween, dislike
The cooling effect for changing evaporator, further results in the decline of refrigerant system efficiency and the increase of energy consumption.Particularly, work as freezer
When interior humidity load is larger, internal frost is particularly acute.
Humidity load inside freezer is mainly dissipated wet, cargo and dissipated wet, equipment and dissipate wet and ventilation by personnel dissipates wet etc. form.
According to different Ku Wen, freezer can be classified as guick freezing room (- 30 DEG C), refrigerator (- 18 DEG C) and precooling room etc..One
As in the case of, be equipped with outside each cold of freezer for personnel are current and the hallway of cargo disengaging, and can be also equipped with before guick freezing room
Carrying out pretreated isolation to cargo.For between cold for guick freezing room and refrigerator etc., directly and hallway due to its entrance
It is connected between being isolated, a big chunk humidity load is to enter in its cold between being isolated from hallway through entrance.Especially work as people
Member is when current and cargo passes in and out wherein in cold, have a large amount of humidity loads via hallway and it is cold between channel and enter cold
Between in.In addition to this, for room temperature hallway, the humidity load uprushed frequently can lead to the generation of dew condensation phenomenon, or even in hallway
The phenomenon that forming " rainy "；And for low temperature hallway, the same generation for being accompanied by frost.It can be seen that wet in hallway
Load can not only deteriorate its working environment, also result in the surge of cold interior humidity load, and the latter undoubtedly exacerbates in cold again
Frost.
In existing research, the defrosting means of cool house internal mainly include hot water defrosting, electric defrosting, hot gas defrosting with
And mechanical defrosting etc..But these methods are defrosted again after frost layer generation, fail fundamentally to prevent frost.
These Defrost methods will not only suspend the refrigeration system in freezer to defrost, but also the heat arrived used in the process of defrosting is most
It is all discharged into freezer eventually, the fluctuation of cold storage locker temperature can be caused, be a kind of hidden danger to refrigeration amount of substance.
Summary of the invention
Goal of the invention: the object of the present invention is to provide a kind of solution dehumidification system for the dehumidifying of freezer hallway and operation sides
Method solves existing freezer and is easy frosting, and defrosting easily causes the fluctuation of cold storage locker temperature after frosting, influences to refrigerate asking for amount of substance
Topic.
Technical solution: the solution dehumidification system of the present invention for the dehumidifying of freezer hallway, including fluid reservoir, the storage
Flow container is respectively communicated with the first liquid gas heat exchanger of refrigerator and the second liquid gas heat exchanger of freezer by branch, and described first changes
Hot device is connected to the first dehumidifier, and the first dehumidifier outlet is connected to by a branch with the first liquid gas heat exchanger, by another
Branch is connected to solution regenerator, and the second liquid gas heat exchanger is connected to the second dehumidifier, and the second dehumidifier outlet passes through
One branch is connected to the second liquid gas heat exchanger, is connected to by another branch with solution regenerator, the air inlet of first dehumidifier
Mouth connection blower, gas outlet is respectively communicated with freezer hallway and the second dehumidifier by pipeline.
Switch regeneration in order to which different operating conditions can be directed to, the first dehumidifier outlet is exchanged heat by the first liquid liquid
Device is connected to third solution pump, and the second dehumidifier outlet is connected to third solution pump, the third by the second liquid-liquid heat exchanger
Solution pump discharge is connected to solution regenerator by a branch, is connected to solution cooling condenser, the solution by another branch
Cooling condenser outlet solution regenerator.
The fluid reservoir outlet passes sequentially through the 4th solution pump, third block valve, the first liquid-liquid heat exchanger, the first solution pump
It is connected to the first liquid gas heat exchanger of refrigerator.
The fluid reservoir outlet passes sequentially through the 4th solution pump, the 4th block valve, the second liquid-liquid heat exchanger, the second solution pump
It is connected to the second liquid gas heat exchanger of freezer.
The first dehumidifier outlet is connected to by the first solution pump with the first liquid gas heat exchanger.
The second dehumidifier outlet is connected to by the second solution pump with the second liquid gas heat exchanger of freezer.
The branch road that first dehumidifier gas outlet is connected to freezer hallway and the second dehumidifier air inlet is respectively set
There is air-valve.
The branch road that the third solution pump discharge is connected to solution regenerator and solution cooling condenser is provided with
Block valve.
The operation method of the solution dehumidification system for the dehumidifying of freezer hallway, comprising the following steps:
(A) when single-stage dehumidifies, blower is opened, and the first solution pump is opened, and the second solution pump is closed, and the first air-valve is opened, the
Two air-valves are closed, and third block valve is opened, and the 4th block valve is closed, and the first solution moisture removing device operation at this time carries out single-stage dehumidifying；
Solution is pumped in the first liquid gas heat exchanger by the first solution pump, and solution is wherein cooling by air in refrigerator；It is after cooling
Solution flow to the solution liquid distributor on dehumidifier top, and freezer hallway inner circulating air is sent into the first dehumidifier via the first blower,
It directly contacts and dehumidifies in the first dehumidifier with solution again；Weak solution a part after dehumidifying is led to outside library first molten
Liquid/solution heat exchanger is preheated, and another part leads to the concentrated solution of the first solution pump with the first liquid-liquid heat exchanger outside library
It mixes, sends freezer hallway back to from the first air outlet c after the first air-valve of the air by unlatching after dehumidifying；
(B) when two-stage dehumidifies, blower is opened, and the first solution pump is opened, and the second solution pump is opened, and the first air-valve is closed, the
Two air-valves are opened, and third block valve is opened, and the 4th block valve is opened；The first solution moisture removing device, the second solution moisture removing device are same at this time
Luck row carries out two-stage dehumidifying, and solution is pumped to the first liquid gas heat exchanger, the second liquid respectively by the first solution pump, the second solution pump
In gas heat exchanger, two strands of solution are cooled to different temperature from air in guick freezing room by refrigerator respectively, send through blower to first
Air in solution moisture removing device and the relatively high solution of the temperature from the first liquid gas heat exchanger carry out first order dehumidifying, through the
Air after level-one dehumidifying is admitted to the second solution moisture removing device via the second air-valve of unlatching, and air is in the second solution moisture removing device
Freezer hallway is returned to by the lower solution dehumidification of temperature from the second liquid gas heat exchanger, then by the second air outlet e, first is molten
The first liquid-liquid heat exchanger for leading to outside library of weak solution a part after dehumidifying in liquid dehumidifier is preheated, and another part leads to the
One solution pump is mixed with the concentrated solution of the first liquid-liquid heat exchanger outside library, the weak solution one after dehumidifying in the second solution moisture removing device
The second liquid-liquid heat exchanger that part is led to outside library is preheated, and another part leads to the second solution pump and comes from the second liquid liquid outside library
The concentrated solution of heat exchanger mixes, and the air after dehumidifying sends freezer hallway back to through the second air outlet e；
(C) when regeneration module directly utilizes surrounding air to regenerate outside library, the first block valve is opened, and the second block valve is closed；
The weak solution flowed out from the first solution moisture removing device, the second solution moisture removing device passes through the one the second liquid-liquid heat exchangers, second respectively
Liquid-liquid heat exchanger preheating, each leads to third solution pump；Third solution pump by the first block valve opened, passes through weak solution pumping
After solution liquid distributor cloth liquid at the top of solution regenerator, caloic is carried out with air outside library in solution regenerator and exchanges to reach
Regenerated purpose, the hot concentrated solution after regeneration are admitted in fluid reservoir, and the concentrated solution in fluid reservoir is via the 4th solution pump
By the third block valve of unlatching, the 4th block valve, then flows into the first liquid-liquid heat exchanger, is pre-chilled in the second liquid-liquid heat exchanger, then
It is respectively fed to Ku Nei and is mixed with weak solution；
(D) when regeneration module is regenerated using waste heat of condensation outside library: the first block valve is closed, and the second block valve is opened；From
The weak solution flowed out in one solution moisture removing device, the second solution moisture removing device passes through the first liquid-liquid heat exchanger, the heat exchange of the second liquid liquid respectively
Device preheating each leads to third solution pump, and by weak solution pumping by the second block valve of unlatching, weak solution passes through third solution pump
It is admitted to solution cooling condenser after second block valve, is wherein being heated to suitably by the waste heat of condensation of cold storage refrigerating system
Regeneration temperature, the weak solution after heating leave solution cooling condenser, by the solution liquid distributor at the top of solution regenerator,
It carries out caloic with air outside library in solution regenerator to exchange to regenerate, the hot concentrated solution after regeneration is admitted in fluid reservoir, liquid storage
Third block valve, fourth block valve of the concentrated solution via the 4th solution pump by unlatching in tank, then flow into the first liquid liquid
It is pre-chilled in heat exchanger, the second liquid-liquid heat exchanger, then is respectively fed to Ku Nei and is mixed with weak solution.
The utility model has the advantages that the present invention is handled the humidity load in freezer hallway by solution dehumidification technology in real time, and benefit
Solution regeneration is carried out with existing heat source.On the one hand the working environment in hallway is improved, on the other hand reduces and enters from hallway
Humidity load in cold inhibits the frost in cold from the root.Compared to traditional defrosting means, Ku Wen is avoided
Fluctuation ensure that the quality of refrigeration object, the operational efficiency of cold storage refrigerating system be improved, and be not necessarily to additional energy, to freezer section
It can contribute.Cold source present invention utilizes the cooling capacity in different warm areas cold as cooling solution, is easy to transformation and nothing
Additional cold source is needed, single-stage dehumidifying and two-stage two kinds of dehumidification modes of dehumidifying are realized.The present invention can be according to wet negative in freezer hallway
The case where lotus, the free switching in two kinds of dehumidification modes, and change rotation speed of fan and liquid inventory, real-time regulating system dehumidifying
Amount, guarantees the high efficiency and reliability of the dehumidification system.Present invention is alternatively directed to different operating conditions to propose two kinds of regeneration moulds
Formula is not necessarily to extra heat source.When outside air parameter is in hot dry state relatively, solution regeneration is realized merely with surrounding air；
When outside air is unable to satisfy regeneration requirements, regenerated using the waste heat of condensation heated solution of freezer refrigerating host groups；Being aided with makes
With fluid reservoir, to realize high efficient and reliable operation of the system under whole year, full weather operating condition.The condensation heat of recycling can also be one
Determine to reduce thermal pollution in degree.
Detailed description of the invention
Fig. 1 is system structure and flow diagram of the invention；
Fig. 2 is the judgment basis and flow chart of two kinds of regeneration switchings.
Specific embodiment
Invention is further explained with reference to the accompanying drawing.
As shown in Figure 1, for the solution dehumidification system of freezer hallway dehumidifying, system include in library outside dehumidification module and library again
Module is given birth to, dehumidification module is connected with regeneration module outside library by solution line in library.
Dehumidification module in library: the first blower 1 is connected with 2 air intlet a of the first solution moisture removing device, the first solution moisture removing device 2
Air outlet slit b is connected with the first air-valve 4 and the second air-valve 5 simultaneously, and the first air-valve 4 is connected with the first air outlet c, the second air-valve 5
It is connected with 3 air intlet d of the second solution moisture removing device, 3 air outlet slit of the second solution moisture removing device is connected with the second air outlet e；First
The taphole f of solution/air heat exchanger 6 passes through solution line and 22 phase of solution liquid distributor at the top of the first solution moisture removing device
Even, the first taphole of 2 bottom of the first solution moisture removing device is connected with 14 first import of the first solution pump, the first solution moisture removing device
Second taphole of 2 bottoms leads to outside library and is connected with 8 first import of the first solution/solution heat exchanger, the first solution pump 14
Second import is connected with 8 first outlet of the first solution outside library/solution heat exchanger；First solution pump 14 outlet with the first solution/
The solution inlet port g of air heat exchanger 6 is connected；The taphole h of second solution/air heat exchanger 7 passes through solution line and second
The solution liquid distributor 23 at 3 top of solution moisture removing device is connected, the first taphole and the second solution of 3 bottom of the second solution moisture removing device
It pumps 15 first imports to be connected, the second taphole of 3 bottom of the second solution moisture removing device leads to outside library and changes with the second solution/solution
Hot 9 first import of device is connected, 15 second import of the second solution pump and 9 first outlet phase of the second solution outside library/solution heat exchanger
Even；The outlet of second solution pump 15 is connected with the solution inlet port i of the second solution/air heat exchanger 7.
Regeneration module outside library: the second blower 13 is connected with 11 air intlet of solution regenerator, and 11 air of solution regenerator goes out
Mouth j leads to ambient atmosphere；First solution/solution heat exchanger, 8 second outlet is connected with 16 first import of third solution pump, and second is molten
9 second outlet of liquid/solution heat exchanger is connected with 16 second import of third solution pump；16 first outlet of third solution pump with first section
Disconnected valve import 18 is connected, and 16 second outlet of third solution pump is connected with 19 import of the second block valve；First block valve 18 exports directly
It connects and is connected with the solution liquid distributor 24 at 11 top of solution regenerator, the outlet of the second block valve 19 is molten with solution cooling condenser 10
Liquid import k is connected, and 10 taphole m of solution cooling condenser is connected with the solution liquid distributor 24 at 11 top of solution regenerator；
The taphole of 11 bottom of solution regenerator is connected with 12 import of fluid reservoir, the outlet of fluid reservoir 12 and 17 import phase of the 4th solution pump
Even；4th solution pump, 17 first outlet is connected with 20 import of third block valve, 17 second outlet of the 4th solution pump and the 4th truncation
21 import of valve is connected；The outlet of third block valve 20 is connected with 8 second import of the first solution/solution heat exchanger, the 4th block valve 21
Outlet is connected with 9 second import of the second solution/solution heat exchanger.
Dehumidification module includes single-stage dehumidifying and two-stage two kinds of methods of operation of dehumidifying in library:
Dehumidification module single-stage dehumidification mode of operation in library: the first blower 1 is opened, and the first solution pump 14 is opened, the second solution
Pump 15 is closed, and the first air-valve 4 is opened, and the second air-valve 5 is closed, and third block valve 20 is opened, and the 4th block valve 21 is closed, at this time only
There is the operation of the first solution moisture removing device 2 to carry out single-stage dehumidifying；Solution is pumped to the first solution/air heat exchanger by the first solution pump 14
In 6, solution is wherein cooling by air in refrigerator；Solution after cooling flow to the solution liquid distributor 22 on dehumidifier top, cold
Library hallway inner circulating air is sent into the first dehumidifier 2 via the first blower 1, then directly contacts in the first dehumidifier 2 with solution
It dehumidifies；The first solution/solution heat exchanger 8 that weak solution a part after dehumidifying is led to outside library is preheated, another part
Lead to the first solution pump 14 to mix with the concentrated solution of the first solution/solution heat exchanger 8 outside library, the air after dehumidifying is by opening
Freezer hallway is sent back to from the first air outlet c after the first air-valve 4 opened.
Dehumidification module two-stage dehumidification mode of operation in library: the first blower 1 is opened, and the first solution pump 14 is opened, the second solution
Pump 15 is opened, and the first air-valve 4 is closed, and the second air-valve 5 is opened, and third block valve 20 is opened, and the 4th block valve 21 is opened；At this time
One, the second solution moisture removing device 2,3 is run simultaneously carries out two-stage dehumidifying；Solution is pumped to by the first, second solution pump 14,15 respectively
In first, second solution/air heat exchanger 6,7, two strands of solution are cooled to by refrigerator from air in guick freezing room different respectively
Temperature；Through the first blower send air into the first solution moisture removing device 2 with from the temperature phase of the first solution/air heat exchanger 6
First order dehumidifying is carried out to higher solution, the air after the first order dehumidifies is admitted to second via the second air-valve 5 of unlatching
Solution moisture removing device 3；Air is in the second solution moisture removing device 3 by the lower solution of temperature from the second solution/air heat exchanger 7
Dehumidifying, then freezer hallway is returned to by the second air outlet e；Weak solution a part after dehumidifying in first solution moisture removing device 2 is led to
The first solution/solution heat exchanger 8 outside library is preheated, another part lead to the first solution pump 14 with it is first molten outside the library
The concentrated solution of liquid/solution heat exchanger 8 mixes；Weak solution a part after dehumidifying in second solution moisture removing device 3 leads to the outside library
Two solution/solution heat exchanger 9 is preheated, and another part leads to the second solution pump 15 and changes with from the second solution/solution outside library
The concentrated solution of hot device 9 mixes；Air after dehumidifying sends freezer hallway back to through the second air outlet.
Two kinds of methods of operation of dehumidification module include a kind of mode switching judging foundation in library: according to different freezer hallway feelings
Condition, the 60% of the maximum water capacity for being selected as freezer emerged in operation of water capacity critical value W, W in systemic presupposition hallway；When wearing
Water capacity is less than W in hall, and system uses single-stage dehumidification mode of operation；When water capacity is greater than critical value W in hallway, system is switched to
Two-stage dehumidification mode of operation；In two kinds of dehumidification mode of operation, system can change according to humidity load, by when adjust the first blower
1 revolving speed and the first, second solution pump 14,15 flows are changed with coping with humidity load in library.
Regeneration module includes directly regenerating to regenerate two kinds of regenerations with using waste heat of condensation using surrounding air outside library:
Regeneration module directly utilizes surrounding air regeneration outside library: the first block valve 18 is opened, and the second block valve 19 closes
It closes；The weak solution flowed out from the first, second solution moisture removing device 2,3 passes through the first, second solution/solution heat exchanger 8,9 respectively
Preheating, each leads to third solution pump 16；Weak solution pumping is passed through the first block valve 18 opened by third solution pump 16, through solution
After the 24 cloth liquid of solution liquid distributor at 11 top of regenerator, caloic is carried out with air outside library in solution regenerator 11 and exchanges to reach
To regenerated purpose, the hot concentrated solution after regeneration is admitted in fluid reservoir 12；Concentrated solution in fluid reservoir 12 is via the 4th solution
17 pumping of pump passes through the third opened, the 4th block valve 20,21, then flows into pre- in the first, second solution/solution heat exchanger 8,9
It is cold, then be respectively fed to Ku Nei and mixed with weak solution.
Regeneration module utilizes waste heat of condensation regeneration outside library: the first block valve 18 is closed, and the second block valve 19 is opened；From
The weak solution flowed out in first solution moisture removing device 2, the second solution moisture removing device 3 passes through the first solution/solution heat exchanger 8, respectively
Two solution/solution heat exchanger 9 preheats, and each leads to third solution pump 16；Weak solution pumping is passed through unlatching by third solution pump 16
Second block valve 19；Weak solution is admitted to solution cooling condenser 10 after passing through the second block valve 19, wherein by freezer system
The waste heat of condensation of cooling system is heated to suitable regeneration temperature；Weak solution after heating leaves solution cooling condenser 10, warp
The solution liquid distributor 24 for crossing 11 top of solution regenerator carries out caloic with air outside library in solution regenerator 11 and exchanges with again
It is raw；Hot concentrated solution after regeneration is admitted in fluid reservoir 12, and the concentrated solution in fluid reservoir 12 pumps logical via the 4th solution pump 17
The third block valve 20 opened, the 4th block valve 21 are crossed, then flows into the first solution/solution heat exchanger 8, the second solution/solution and changes
It is pre-chilled in hot device 9, then is respectively fed to Ku Nei and is mixed with weak solution.
Include a kind of mode switching judging foundation in two kinds of regenerations of regeneration module outside library: as shown in Fig. 2, system
Equipped with the solution concentration critical value X in fluid reservoir 12, outside air temperature critical value T, outside relative humidity critical value RH；Only
When solution concentration is greater than its critical value X in fluid reservoir 12 and outside air temperature is greater than its critical value T and outside relative humidity is small
When its critical value RH, regeneration module directly utilizes surrounding air to regenerate outside library；When remaining situation, regeneration module is utilized cold outside library
Solidifying residual heat regenerating simultaneously carries out accumulation of energy using fluid reservoir 12.Wherein, the basis for selecting freezer actual motion load of critical value X, T, RH
And outdoor environmental conditions comprehensively consider and are selected.
Wherein, the equipment such as all blowers, solution pump, block valve in this system are equipped with corresponding frequency converter, and pass through
Circuit connection is into electronic control unit.Regeneration module can be according to respectively coping with outside dehumidification module and library in the library of the system
Operating condition is adjusted in real time, is switched to suitable operational mode and adjusts each flow and air quantity, to realize in full weather conditions
Under efficient dehumidifying to freezer hallway.
Claims (9)
1. a kind of solution dehumidification system for the dehumidifying of freezer hallway, which is characterized in that including fluid reservoir (12), the fluid reservoir
(12) the first liquid gas heat exchanger (6) of refrigerator and the second liquid gas heat exchanger (7) of freezer are respectively communicated with by branch, it is described
First liquid gas heat exchanger (6) is connected to the first solution moisture removing device (2), and first solution dehumidification (2) outlet passes through a branch and the
The connection of one liquid gas heat exchanger (6), is connected to by another branch with solution regenerator (11), and the second liquid gas heat exchanger (7) is even
Logical second solution moisture removing device (3), the second solution moisture removing device (3) outlet are connected by a branch and the second liquid gas heat exchanger (7)
It is logical, it is connected to by another branch with solution regenerator (11), the air inlet of first solution moisture removing device (2) is connected to blower (1),
Gas outlet is respectively communicated with freezer hallway and the second solution moisture removing device (3) by pipeline.
2. the solution dehumidification system according to claim 1 for the dehumidifying of freezer hallway, which is characterized in that described first is molten
Liquid dehumidifier (2) outlet passes through the first liquid-liquid heat exchanger (8) connection third solution pump (16), second solution moisture removing device (3)
Outlet passes through a branch by the second liquid-liquid heat exchanger (9) connection third solution pump (16), third solution pump (16) outlet
It is connected to solution regenerator (11), solution cooling condenser (10) is connected to by another branch, the solution cooling condenser
(10) outlet solution regenerator (11).
3. the solution dehumidification system according to claim 1 for the dehumidifying of freezer hallway, which is characterized in that the fluid reservoir
(12) outlet passes sequentially through the 4th solution pump (17), third block valve (20), the first liquid-liquid heat exchanger (8), the first solution pump
(14) it is connected to the first liquid gas heat exchanger (6) of refrigerator.
4. the solution dehumidification system according to claim 1 for the dehumidifying of freezer hallway, which is characterized in that the fluid reservoir
(12) outlet passes sequentially through the 4th solution pump (17), the 4th block valve (21), the second liquid-liquid heat exchanger (9), the second solution pump
(15) it is connected to the second liquid gas heat exchanger (8) of freezer.
5. the solution dehumidification system according to claim 1 for the dehumidifying of freezer hallway, which is characterized in that described first is molten
Liquid dehumidifier (2) outlet is connected to by the first solution pump (14) with the first liquid gas heat exchanger (6).
6. the solution dehumidification system according to claim 1 for the dehumidifying of freezer hallway, which is characterized in that described second is molten
Liquid dehumidifier (3) outlet is connected to by the second solution pump (15) with the second liquid gas heat exchanger (7) of freezer.
7. the solution dehumidification system according to claim 1 for the dehumidifying of freezer hallway, which is characterized in that described first is molten
The branch road that liquid dehumidifier (2) gas outlet is connected to freezer hallway and the second solution moisture removing device (3) air inlet is respectively arranged with wind
Valve.
8. the solution dehumidification system according to claim 1 for the dehumidifying of freezer hallway, which is characterized in that the third is molten
The branch road that liquid pump (16) outlet is connected to solution regenerator (11) and solution cooling condenser (10) is provided with block valve.
9. as described in claim 1 for the operation method of the solution dehumidification system of freezer hallway dehumidifying, which is characterized in that packet
Include following steps:
(A) when single-stage dehumidifies, blower (1) is opened, and the first solution pump (14) is opened, and the second solution pump (15) is closed, the first air-valve
(4) it opens, the second air-valve (5) is closed, and third block valve (20) is opened, and the 4th block valve (21) is closed, and the first solution removes at this time
Wet device (2) operation carries out single-stage dehumidifying；Solution is pumped in the first liquid gas heat exchanger (6) by the first solution pump (14), and solution exists
It is wherein cooling by air in refrigerator；Solution after cooling flow to the solution liquid distributor (22) on dehumidifier top, in freezer hallway
Circulation air is sent into the first dehumidifier (2) via the first blower (1), then directly contacted in the first dehumidifier (2) with solution into
Row dehumidifying；The first solution/solution heat exchanger 8 that weak solution a part after dehumidifying is led to outside library is preheated, and another part is logical
It is mixed to the first solution pump (14) with the concentrated solution from the first liquid-liquid heat exchanger (8) outside library, the air after dehumidifying is by opening
The first air-valve (4) after from the first air outlet c send freezer hallway back to；
(B) when two-stage dehumidifies, blower (1) is opened, and the first solution pump (14) is opened, and the second solution pump (15) is opened, the first air-valve
(4) it closes, the second air-valve (5) is opened, and third block valve (20) is opened, and the 4th block valve (21) is opened；The first solution removes at this time
Wet device (2), the second solution moisture removing device (3) are run simultaneously carries out two-stage dehumidifying, the first solution pump (14), the second solution pump (15) point
Solution the first liquid gas heat exchanger (6) is not pumped to, in the second liquid gas heat exchanger (7), two strands of solution by refrigerator and freeze respectively
The interior air of knot is cooled to different temperature, send the air into the first solution moisture removing device (2) through blower and comes from the first liquid gas
The relatively high solution of the temperature of heat exchanger (6) carries out first order dehumidifying, and the air after the first order dehumidifies is via the of unlatching
Two air-valves (5) are admitted to the second solution moisture removing device (3), and air is exchanged heat in the second solution moisture removing device (3) from the second liquid gas
The lower solution dehumidification of temperature of device (7), then freezer hallway is returned to by the second air outlet e, the first solution moisture removing device removes in (2)
The first liquid-liquid heat exchanger (8) that weak solution a part after wet is led to outside library is preheated, and another part leads to the first solution pump
(14) it is mixed with the concentrated solution from the first liquid-liquid heat exchanger (8) outside library, the weak solution in the second solution moisture removing device (3) after dehumidifying
The second liquid-liquid heat exchanger (9) that a part is led to outside library is preheated, and another part leads to the second solution pump (15) and comes from library
The concentrated solution of outer second liquid-liquid heat exchanger (9) mixes, and the air after dehumidifying sends freezer hallway back to through the second air outlet e；
(C) when regeneration module directly utilizes surrounding air to regenerate outside library, the first block valve (18) is opened, and the second block valve (19) closes
It closes；The weak solution flowed out from the first solution moisture removing device (2), in the second solution moisture removing device (3) is passed through the one the second liquid liquid respectively and is changed
Hot device (8), the second liquid-liquid heat exchanger (9) preheating, each lead to third solution pump (16)；Third solution pump (16) pumps weak solution
By the first block valve (18) of unlatching, after solution liquid distributor (24) cloth liquid at the top of solution regenerator (11), again in solution
It carries out caloic with air outside library in raw device (11) to exchange to reach regenerated purpose, the hot concentrated solution after regeneration is admitted to liquid storage
In tank (12), concentrated solution in fluid reservoir (12) via the pumping of the 4th solution pump (17) by the third block valve (20) opened,
4th block valve (21), then pre-cooling in the first liquid-liquid heat exchanger (8), the second liquid-liquid heat exchanger (9) is flowed into, then be respectively fed to library
It is interior to be mixed with weak solution；
(D) when regeneration module is regenerated using waste heat of condensation outside library: the first block valve (18) is closed, and the second block valve (19) is opened；
The weak solution flowed out from the first solution moisture removing device (2), in the second solution moisture removing device (3) pass through respectively the first liquid-liquid heat exchanger (8),
Second liquid-liquid heat exchanger (9) preheating, each leads to third solution pump (16), and weak solution pumping is passed through unlatching by third solution pump (16)
The second block valve (19), weak solution pass through the second block valve (19) after be admitted to solution cooling condenser (10), wherein
Suitable regeneration temperature is heated to by the waste heat of condensation of cold storage refrigerating system, the weak solution after heating leaves the condensation of solution cooled
Device (10), by the solution liquid distributor (24) at the top of solution regenerator (11), in solution regenerator (11) with air outside library into
Row caloic exchange to regenerate, the hot concentrated solution after regeneration is admitted in fluid reservoir (12), the concentrated solution in fluid reservoir (12) via
Third block valve (20), fourth block valve (21) of 4th solution pump (17) pumping by unlatching, then flow into the heat exchange of the first liquid liquid
Pre-cooling in device (8), the second liquid-liquid heat exchanger (9), then be respectively fed to Ku Nei and mixed with weak solution.
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| WO2018139592A1 (en) * | 2017-01-26 | 2018-08-02 | ダイキン工業株式会社 | Humidity controller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| IL141579A0 (en) * | 2001-02-21 | 2002-03-10 | Drykor Ltd | Dehumidifier/air-conditioning system |
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| AU2001252516A1 (en) * | 2001-02-21 | 2003-02-27 | Ducool Ltd | Dehumidifier/air-conditioning system |
| CN104654713A (en) * | 2014-11-27 | 2015-05-27 | 浙江海洋学院 | Middle-size and small-size frostless refrigeration house refrigeration device of solution dehumidifying combined air cooling machine |
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