CN106196990B - In conjunction with the depth of cooling tower and heat pump system dehumidifying unit - Google Patents
In conjunction with the depth of cooling tower and heat pump system dehumidifying unit Download PDFInfo
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- CN106196990B CN106196990B CN201610772064.2A CN201610772064A CN106196990B CN 106196990 B CN106196990 B CN 106196990B CN 201610772064 A CN201610772064 A CN 201610772064A CN 106196990 B CN106196990 B CN 106196990B
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- dehumidifier
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Classifications
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/265—Drying gases or vapours by refrigeration (condensation)
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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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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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
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
Abstract
The present invention relates to a kind of depth of combination cooling tower and heat pump system dehumidifying units, including level-one Dehumidifying element, two level Dehumidifying element, regeneration unit, heat pump system and temperature element；The level-one Dehumidifying element includes level-one dehumidifier, level-one dehumidification solution pump, the first triple valve, cooling tower, plate heat exchanger and cooling tower circulating pump；The two level Dehumidifying element includes two level dehumidifier, two level dehumidification solution pump, the second triple valve and third triple valve；The regeneration unit includes regenerator, actified solution pump, third triple valve, plate heat exchanger and water replanishing device；The solution that being equipped between the level-one dehumidifier, two level dehumidifier and regenerator makes to exchange between dehumidifying and regeneration unit carries out solution-solution plate heat exchanger of heat exchange；The heat pump system includes compressor, condenser, throttle valve and evaporator, and wherein condenser provides heat source for regenerator, and evaporator connection dehumidifier provides low-temperature receiver for dehumidifier.It solves the problems, such as to dehumidify in dry materials, production technology environment wind field depth.
Description
Technical field
The invention belongs to dry materials, production technology environment wind technical fields, more particularly to a kind of combination cooling tower
With the depth dehumidifying unit of heat pump system.
Background technology
The air humidity that certain production industries or technical process (such as drying technology) need is very low, is removed using conventional solution
Wet system is extremely difficult to such air-supply and requires.Presently relevant field of industrial production generally uses rotary wheel dehumidifying or refrigerant
The mode of direct-expansion-type dehumidification by condensation provides dry air for these production technologies.Although rotary wheel dehumidifying can will be in air
Water capacity processing to be less than 3g/Kg, but between wheel surface and air it is wet difference and the temperature difference it is all very uneven, cause it is prodigious can not
Inverse loss.The regeneration temperature of rotary wheel dehumidifying is high (100-140 DEG C), mostly uses electricity or steam as drive energy, energy utilization rate
Less than 0.7, operating cost is high.With the continuous rotation of runner in rotary wheel dehumidifying, inevitably there is regeneration air and dehumidifying
The blending of air influences quality of blowing.For containing toxic, explosion hazard gases production environment in some air drafts, rotary wheel dehumidifying
Using being restricted.Refrigerant direct-expansion-type dehumidification by condensation mode, the evaporating temperature of refrigeration system evaporator is relatively low, refrigeration
Cycle efficiency is smaller, and energy consumption is larger.Meanwhile by the way of dehumidification by condensation, dehumidifying effect has certain limitations, minimum air-supply
Water capacity is generally in 5g/Kg (dry air) left and right, and many times desired air-supply water capacity can be down to 3g/ in depth dehumidifying field
Kg (dry air), therefore direct-expansion-type dehumidification by condensation mode can not be used in many occasions.With the mode of dehumidification by condensation, evaporation
Easy to produce condensed water inside device, increase the danger in air duct, coil surface bacterium and microbial growth, the health of air-supply and
Spatter property is difficult to meet the requirements.Particularly with the drying industry (such as edible gelatin production industry) of foodstuff, this drying side is utilized
Formula can be to influencing product quality.Solution dehumidification technology can be good at the shortcomings that overcoming above two dehumidification mode, and air-supply is made to expire
Condition needed for foot.
Solution humidifying technology is to use the salting liquid (such as lithium chloride solution) with humidity conditioning function for working media, and utilization is molten
The moisture absorption of liquid and moisture releasing characteristic control aerial temperature and humidity, the surface steam partial pressure of salting liquid in air
Water vapor partial pressure differential is the driving force that the two carries out moisture transmission.In dehumidification process, in order to increase the driving force of Mass and heat transfer,
It needs that solution is made to cool down.Weak solution after dehumidifying is sent to regenerator regeneration, similarly, in regenerative process needs that solution is made to heat up.
For heat pump system, cold end is for realizing solution dehumidification unit except the cooling of wet side solution, while hot junction is for realizing machine
The heating of group regeneration side solution.Have the relevant research of heat pump driven solution humidifying unit and product in recent years.Heat pump techniques
It is an important part for field of energy-saving technology, is combined with solution dehumidification technology with it, has effectively achieved the section of dehumidification equipment
Energy, Effec-tive Function.The one kind of heat pump driven solution humidifying air-conditioning as independent temperature-humidity control system realizes interior without wet
Surface is blown, and dehumidification solution plays the role of air to sterilize dedusting, can significantly improve the air quality of air-supply.Solution humidifying
The moisture removal of unit can be realized by the concentration and temperature for adjusting dehumidification solution and be adjusted, and can be less than air-treatment to water capacity
3g/Kg (dry air).
Invention content
The present invention provides a kind of combination cooling tower and heat pump system to solve technical problem present in known technology
Depth dehumidifying unit, to solve the problems, such as to dehumidify in dry materials, production technology environment wind field depth.
The present invention is adopted the technical scheme that solve technical problem present in known technology：
The depth of a kind of combination cooling tower and heat pump system dehumidifies unit, including level-one Dehumidifying element, two level Dehumidifying element,
Regeneration unit, heat pump system and temperature element；
The level-one Dehumidifying element includes level-one dehumidifier, level-one dehumidification solution pump, the first triple valve, cooling tower, board-like
Heat exchanger and cooling tower circulating pump；Level-one dehumidifier bottom is connected with level-one dehumidification solution pump, level-one dehumidification solution pump
Outlet end connects the first triple valve, and an outlet end connecting plate type heat exchanger of the first triple valve makes solution pass through plate heat exchanger
After the cold water heat exchange provided with cooling tower, cooling is realized, the solution after cooling, which enters at the top of level-one dehumidifier, to be sprayed, right
Fresh air dehumidifies, and the weak solution after dehumidifying returns in solution tank, completes the cycle of level-one Dehumidifying element；First triple valve it is another
One end is connected to solution-solution plate heat exchanger；
The two level Dehumidifying element includes two level dehumidifier, two level dehumidification solution pump, the second triple valve and third triple valve；
Two level dehumidifier bottom is connected with two level dehumidification solution pump, and the outlet end of two level dehumidification solution pump connects the second triple valve,
One outlet end of the second triple valve is connected to evaporator, and solution is made to realize cooling after evaporator, the weak solution after cooling into
Enter two level dehumidifier top spray, handle the wind sent out by level-one dehumidifier, the solution after dehumidifying returns in solution tank, completes two
The cycle of grade Dehumidifying element；
The other end of second triple valve connects solution-solution plate heat exchanger, and from the first triple valve of level-one dehumidifier
The part solution of one outlet end mixes, and after mixed solution is exchanged heat with the concentrated solution for regenerating side, realizes heating, is then sent to
In the solution tank of regenerator bottoms；The regenerator bottoms are connected with actified solution pump, the outlet end connection the of actified solution pump
Four triple valves, an outlet end of the 4th triple valve connect condenser, connecting plate type heat exchanger after condensed device；4th triple valve
The other end is connected to solution-solution heat exchanger, exchanges heat with the mixed solution from level-one dehumidifier and two level dehumidifier, real
Now cool down, is then assigned in level-one dehumidifier solution tank and two level dehumidifier solution tank by third triple valve；
The regeneration unit includes regenerator, actified solution pump, third triple valve, plate heat exchanger and water replanishing device；Institute
It states the solution for being equipped between level-one dehumidifier, two level dehumidifier and regenerator and making to exchange between dehumidifying and regeneration unit and carries out heat friendship
The solution changed-solution plate heat exchanger；
The heat pump system includes compressor, condenser, throttle valve and evaporator, and wherein condenser provides for regenerator
Heat source, evaporator connection dehumidifier provide low-temperature receiver for dehumidifier.
The present invention can also use following technical measures：
Described further includes supplemental heat source, the supplemental heat source connecting plate type heat exchanger.
The regenerator bottoms are connected to a water compensating valve.
The invention has the advantages and positive effects that：In conjunction with the depth of cooling tower and heat pump system dehumidifying unit, use
Efficient cooling tower systems and efficient heat pump system carry out two-stage treatment to fresh air, realize that the air-supply of depth dehumidifying is wanted
It asks.If increasing the processing air quantity of level-one dehumidifier, keep two level dehumidifier air quantity constant, then system can supply two kinds of differences simultaneously
The air-supply of state.Use cooling tower to provide low-temperature receiver for level-one dehumidifier, can effectively reduce system energy consumption, than it is single made with heat pump it is cold
The depth dehumidifying unit energy saving 50% or so in source.To handle 10000m3For the fresh air of/h, by level-one dehumidifier, (solution is dense
38%) processing is handled using two level dehumidifier (solution concentration 38%) to 22 DEG C, 4/Kg, two processes degree to 38 DEG C, 8/Kg
Consumption cold be respectively 116KW, 115KW (the most unfavorable processing condition calculating), substantially accounting is identical.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
In figure：100, level-one Dehumidifying element；200, two level Dehumidifying element；300, regeneration unit；400, heat pump system；A, again
Raw device B, two level dehumidifier；C, level-one dehumidifier；D, cooling tower；E, other heat sources；1, two level dehumidification solution pumps；1 ', regeneration are molten
Liquid pump；1 〞, level-one dehumidification solution pump；2 〞, the first triple valve；2, the second triple valve；2 ', the 4th triple valve；3, solution-solution
Plate heat exchanger；4, compressor 5, condenser；6, throttle valve；7, evaporator；8, plate heat exchanger；9, third triple valve；10, plate
Formula heat exchanger；11, cooling water circulating pump；12, water compensating valve.
Specific implementation mode
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and coordinate attached drawing
Detailed description are as follows：
The unit referring to Fig. 1, depth of a kind of combination cooling tower and heat pump system dehumidifies, it is characterised in that：Including level-one
Dehumidifying element 100, two level Dehumidifying element 200, regeneration unit 300, heat pump system 400 and temperature element；
The level-one Dehumidifying element 100 includes level-one dehumidifier C, 1 ＂ of level-one dehumidification solution pump, 2 ＂ of the first triple valve, cooling
Tower D, plate heat exchanger 10 and cooling tower circulating pump 11；The bottoms level-one dehumidifier C be connected with level-one dehumidification solution pump 1 ＂, one
Outlet end connection 2 ＂ of the first triple valve of grade dehumidification solution pump, an outlet end connecting plate type heat exchanger 10 of 2 ＂ of the first triple valve,
Make solution after the cold water heat exchange that plate heat exchanger 10 and cooling tower provide, realizes that cooling, the solution after cooling enter level-one
It is sprayed at the top of dehumidifier C, is dehumidified to fresh air, the weak solution after dehumidifying returns in solution tank, completes level-one dehumidifying
The cycle of unit；The other end of first triple valve, 2 ＂ is connected to solution-solution plate heat exchanger 3；The level-one dehumidifier utilizes
The weak solution that plate heat exchanger 10 is flowed through after dehumidifying carries out spray process to fresh air, and treated, and new air temperature increases, water capacity
It is reduced to certain value (air humidity content after the solution treatment of various concentration is different), the weak solution concentration after dehumidifying is dropped
Low, temperature increases.
The two level Dehumidifying element 200 includes two level dehumidifier B, two level dehumidification solution the 1, second triple valve 2 of pump and third
Triple valve 9；Two level dehumidifier bottom is connected with two level dehumidification solution pump 1, the outlet end connection the of two level dehumidification solution pump 1
One outlet end of two triple valves 2, the second triple valve 2 is connected to evaporator 7, and solution is made to realize cooling after evaporator 7, cooling
Weak solution afterwards enters two level dehumidifier B top sprays, handles the wind sent out by level-one dehumidifier, the solution after dehumidifying returns to molten
In liquid bath, the cycle of two level Dehumidifying element is completed；
The other end of second triple valve 2 connects solution-solution plate heat exchanger 3, and from the first threeway of level-one dehumidifier
The part solutions of mono- outlet ends 2 ＂ of valve mixes, and after the concentrated solution of mixed solution and regeneration side is exchanged heat, realizes heating, then by
It send to the solution tank of the bottoms regenerator A；The regenerator bottoms are connected with actified solution and pump 1 ', and actified solution pumps the outlet of 1 '
End connection 2 ' of the 4th triple valve, an outlet end of 2 ' of the 4th triple valve connect condenser 5, connecting plate type heat exchanger after condensed device
8；Solution after heating cannot meet spray temperature requirement, continue to heat up by plate heat exchanger 8, into the top of regenerator into
Row spray carries out caloic with regeneration air and exchanges, realizes the raising of concentration, the solution after regeneration returns to complete in regenerator solution tank
At the cycle of regeneration unit；The other end of 4th triple valve, 2 ' is connected to solution-solution heat exchanger 3, and from level-one dehumidifier
It exchanges heat with the mixed solution of two level dehumidifier, realizes cooling, it is molten to be then assigned to level-one dehumidifier by third triple valve 9
In liquid bath and two level dehumidifier solution tank；
The regeneration unit 300 includes regenerator A, 1 ' of actified solution pump, third triple valve 9, plate heat exchanger 8 and moisturizing
Device；Be equipped between the level-one dehumidifier, two level dehumidifier and regenerator make the solution that is exchanged between dehumidifying and regeneration unit into
The solution of row heat exchange-solution plate heat exchanger 3；
The heat pump system includes compressor 4, condenser 5, throttle valve 6 and evaporator 7, and wherein condenser is regenerator
Heat source is provided, evaporator connection dehumidifier provides low-temperature receiver for dehumidifier.
Other described heat sources are system auxiliary thermal source, and form is unrestricted, can be arbitrary heat source.
The winter operation principle of unit is similar to summer, need to only switch the four-way reversing valve in heat pump system, make refrigerant
Flow direction with summer on the contrary, evaporator 7 heats the solution in level-one dehumidifier as condenser 5, dehumidifier to fresh air into
Row warming and humidifying meets air-supply and requires.Condenser 5 cools down to solution as evaporator 7, and regenerator carries out regeneration air
Dehumidification cooling.Winter cooling tower and other heat sources are not turned on operation.
For unit when spring and autumn is run, because water capacity is relatively low in spring and autumn outdoor air, level-one Dehumidifying element is basic
Without dehumidifying effect, heat pump system cooling/heating ability can meet system requirements, therefore in spring and autumn, cooling tower and other
Heat source is not turned on operation.
This combines in the depth of cooling tower and heat pump system dehumidifying unit and is equipped with temperature measuring equipment, mainly related by measuring
Temperature parameter controls the overall operation situation of unit.
The level-one dehumidifier unit is handled air humidity content to 8g/Kg (dry air) using efficient cooling tower
Left and right, treated, and air enters in heat pump driven two level dehumidifier, is processed to the blasting humidity of requirement.Since two level is removed
Wet device, which is responsible for blow, to be handled by 8g/Kg (dry air) to 3g/Kg (dry air) is less than, this just compares the load of heat pump system
It is constant, it ensures that heat pump system is stable, unit operation efficiency is made to improve.
The wind that different parameters can be sent out simultaneously in conjunction with the depth of cooling tower and heat pump system dehumidifying unit is also the present invention's
One of innovative point.It can increase the processing air quantity of level-one dehumidifier and keep the processing air quantity of two level dehumidifier while meeting
Difference air-supply humiture parameter requirements.The fresh air handled by level-one dehumidifier can meet the blasting humidity of primary demand；It will
The fresh air that a part is handled through level-one dehumidifier is handled using two level dehumidifier, then can meet the air-supply demand of depth dehumidifying.
The triple valve of two level dehumidifier solution tank inlet can distribute the solution after solution-solution heat exchanger heat exchange,
Ensure that solution maintains metastable concentration in two dehumidifiers.
Other heat sources are the supplemental heat source of system, and it is molten that the cold that heat pump system evaporator provides can only meet two level dehumidifier
Liquid cools down, and level-one dehumidifier and two level dehumidifier share a regenerator, therefore the heating capacity of heat pump system cannot meet regeneration
The demand of device, insufficient heat are supplemented by supplemental heat source, and the form of supplemental heat source is varied, energy meet demand, no spy
It is different to require.
The regenerator bottoms are connected to a water compensating valve, the solution concentration for controlling regeneration side, ensure a whole set of dehumidification system
Normal operation.
The purpose of the present invention is to provide the depth dehumidifying units for combining cooling tower and heat pump system, which can not only
Meet the needs of depth dehumidifying, moreover it is possible to while the air-supply of two kinds of different parameters being provided.And level-one dehumidifier is provided using cooling tower
Cooling water as low-temperature receiver, so that the energy consumption of system is reduced, operating cost reduces, and is the energy-conserving product for being suitble to market development demand.
The above is only the preferred embodiments of the present invention, and is not intended to limit the present invention in any form,
Every any simple modification made to the above embodiment according to the technical essence of the invention, equivalent variations and modification, belong to
In the range of technical solution of the present invention.
Claims (3)
- The unit 1. depth of a kind of combination cooling tower and heat pump system dehumidifies, it is characterised in that：Including level-one Dehumidifying element (100), two level Dehumidifying element (200), regeneration unit (300), heat pump system (400) and temperature element；The level-one Dehumidifying element (100) include level-one dehumidifier (C), level-one dehumidification solution pump (1 ＂), the first triple valve (2 ＂), Cooling tower (D), plate heat exchanger (10) and cooling tower circulating pump (11)；Level-one dehumidifier (C) bottom is connected with level-one and removes The outlet end of wet solution pump (1 ＂), level-one dehumidification solution pump connects the first triple valve (2 ＂), an outlet of the first triple valve (2 ＂) Connecting plate type heat exchanger (10) is held, makes solution after the cold water heat exchange that plate heat exchanger (10) and cooling tower provide, realizes drop Temperature, the solution after cooling, which enters at the top of level-one dehumidifier (C), to be sprayed, and is dehumidified to fresh air, the weak solution after dehumidifying It returns in solution tank, completes the cycle of level-one Dehumidifying element；It is board-like that the other end of first triple valve (2 ＂) is connected to solution-solution Heat exchanger (3)；The two level Dehumidifying element (200) include two level dehumidifier (B), two level dehumidification solution pump (1), the second triple valve (2) and Third triple valve (9)；Two level dehumidifier bottom is connected with two level dehumidification solution pump (1), and two level dehumidification solution pump (1) goes out Mouth end connects the second triple valve (2), and an outlet end of the second triple valve (2) is connected to evaporator (7), and solution is made to pass through evaporator (7) realize that cooling, the weak solution after cooling enter two level dehumidifier (B) top spray afterwards, what processing was sent out by level-one dehumidifier Wind, the solution after dehumidifying return in solution tank, complete the cycle of two level Dehumidifying element；The other end of second triple valve (2) connects solution-solution plate heat exchanger 3, and from the first triple valve of level-one dehumidifier The part solution of the outlet end (2 ＂) mixes, and after the concentrated solution of mixed solution and regeneration side is exchanged heat, realizes heating, then by It send to the solution tank of the bottom regenerator (A)；The regenerator bottoms are connected with actified solution pump (1 '), and actified solution pumps (1 ') Outlet end connect the 4th triple valve (2 '), the outlet end connection condenser (5) of the 4th triple valve (2 ') connects after condensed device Connect plate heat exchanger (8)；The other end of 4th triple valve (2 ') is connected to solution-solution heat exchanger (3), dehumidifies with from level-one The mixed solution of device and two level dehumidifier exchanges heat, and realizes cooling, is then assigned to level-one dehumidifying by third triple valve (9) In device solution tank and two level dehumidifier solution tank；The regeneration unit (300) includes regenerator (A), actified solution pump (1 '), third triple valve (9), plate heat exchanger (8) And water replanishing device；Being equipped between the level-one dehumidifier, two level dehumidifier and regenerator makes to exchange between dehumidifying and regeneration unit Solution carries out solution-solution plate heat exchanger (3) of heat exchange；The heat pump system includes compressor (4), condenser (5), throttle valve (6) and evaporator (7), and wherein condenser is again Raw device provides heat source, and evaporator connection dehumidifier provides low-temperature receiver for dehumidifier.
- The unit 2. depth of combination cooling tower according to claim 1 and heat pump system dehumidifies, it is characterised in that：Further include Supplemental heat source (E), the supplemental heat source connecting plate type heat exchanger.
- The unit 3. depth of combination cooling tower according to claim 1 and heat pump system dehumidifies, it is characterised in that：It is described again Raw device bottom is connected to a water compensating valve (12).
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107036407B (en) * | 2017-05-03 | 2019-07-02 | 苏宇贵 | Natural dehumidifying drying system |
| CN109458833A (en) * | 2018-12-27 | 2019-03-12 | 张家港市沃尔特精密机械有限公司 | A kind of energy-efficient dehumidifying heat pump |
| CN109618688B (en) * | 2019-01-31 | 2023-08-25 | 中原工学院 | Low-temperature drying and humidity-regulating multifunctional ecological grain storage system |
| CN110173967A (en) * | 2019-06-26 | 2019-08-27 | 北京中矿环保科技股份有限公司 | The drying method of the anhydration system of aqueous coal product and aqueous coal product |
| CN111174225A (en) * | 2020-01-02 | 2020-05-19 | 东南大学 | Wet smoke plume eliminating system and method based on solution humidity regulation and water recovery |
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| DE29820870U1 (en) * | 1998-11-23 | 1999-01-21 | Potthoff Ruediger | Device for drying and heating air for drying solids |
| CN1519526A (en) * | 2003-01-25 | 2004-08-11 | 徐宝安 | Thermal gas recycling device for retrieving condensed water from dehydrating material |
| CN103791576A (en) * | 2014-02-17 | 2014-05-14 | 东南大学 | Low-grade heat source drive solution temperature changing two-stage solution dehumidification air conditioner |
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