CN108954575A - Cooling and dehumidifying system is evaporated based on the regenerated multistage dew point of pressure reducing film distillation - Google Patents
Cooling and dehumidifying system is evaporated based on the regenerated multistage dew point of pressure reducing film distillation Download PDFInfo
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- CN108954575A CN108954575A CN201810469089.4A CN201810469089A CN108954575A CN 108954575 A CN108954575 A CN 108954575A CN 201810469089 A CN201810469089 A CN 201810469089A CN 108954575 A CN108954575 A CN 108954575A
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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
- 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
- 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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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Gases (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses one kind to evaporate cooling and dehumidifying system based on the regenerated multistage dew point of pressure reducing film distillation, belong to solution dehumidification system technical field, including photovoltaic/thermal modules interconnected, solution pressure reducing film distillation regeneration module, multistage dew point evaporate cooling and dehumidifying module, recovery of latent heat module.The invention also discloses its regeneration and dehumanization methods.The present invention utilizes photovoltaic/hot component, and solar radiant energy is converted to thermal energy and electric energy and is used as the regenerated drive energy of solution.When needing to regenerate, the weak solution after heating is sent in pressure reducing film distillation regenerator, is regenerated using the selection passability of hydrophobic membrane to solution；When needing air dewetting, concentrated solution is fed in multistage dew point evaporation cooling dehumidifier, is carried out dehumidifying and cooling to air processed, is realized temperature, the humidity regulation of air.The combination of multistage dew point evaporation cooling technique and dehumidifying technology effectively improves the dehumidification efficiency and refrigerating efficiency of system.
Description
Technical field
The invention belongs to solution dehumidification system technical fields, and in particular to be steamed based on the regenerated multistage dew point of pressure reducing film distillation
It feels cold but dehumidification system and method.
Background technique
Solution dehumidification technology becomes more and more concerned because it efficiently utilizes low-grade heat and dehumidification efficiency higher.With it is normal
Rule air-conditioning is compared, and liquid desiccant air conditioning has better air dewetting, can effectively purify air, no pollution to the environment,
Power consumption is low, and salting liquid is also able to achieve highdensity energy storage, up to 1300-1400MJ/m3Storage capacity, accumulation of energy energy
The advantages that power is 3 ~ 4 times higher than traditional ice storage, is not necessarily to the measures such as heat preservation.
As a kind of using free, environment protection clean renewable energy, solar energy is combined with solution dehumidification is solar energy
The important solutions for alleviating air conditioning energy consumption and environmental problem are carried out solution regeneration using solar energy in recent years and have become one
Research hotspot.However, traditional solution regeneration but depends critically upon the situation of ambient enviroment, in high temperature or the weather of high humidity
Under the conditions of, regeneration effect is not able to satisfy the demand of dehumidifying.Therefore, in order to guarantee solar energy solution regeneration system in high temperature and humidity day
The stability run under gas, it is necessary to find a kind of new regeneration process.
On the other hand, the cooling Refrigeration Technique for obtaining cooling capacity from nature as a kind of of evaporation, there is the excellent of environmental protection and energy saving
Gesture.Traditional direct evaporating-cooling technical principle and operation is all very simple, but it is inevitably present following disadvantage: straight
The humidity for connecing air after evaporating cooling increases, so that air after cooling is difficult to meet air-supply condition；Indirect evaporating-cooling can be with
Wind pushing air humidity is avoided to increase, but its cooling effect is little, is influenced by air's wet bulb temperature；And in direct evaporating-cooling and
Indirect evaporating-cooling is poor in the area evaporation cooling effect of high temperature and humidity.Therefore, dew point is evaporated into cooling and solution dehumidification
The cooling application in Hot-Humid Area of evaporation certainly will will be promoted by being effectively combined.
Summary of the invention
It is removed to solve the above problems, the invention discloses one kind based on the regenerated multistage dew point evaporation cooling of pressure reducing film distillation
Wet system is suitable for the air dewetting cooling to Hot-Humid Area；In order to realize the comprehensive utilization to solar energy, using solar energy
Volt/heat (PV/T) technology humanized is expected to further push the development of solution dehumidifying air-conditioning system.It is another object of the present invention to mention
For its regeneration, dehumanization method.
In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical scheme:
Evaporate cooling and dehumidifying system, including solar energy PV/T component based on the regenerated multistage dew point of pressure reducing film distillation, it is described too
The electric current of generation is introduced into battery by positive energy PV/T component to be stored, and battery is connected with circulation solution pump and vacuum pump respectively.
The taphole of the solar energy PV/T component is connect with the entrance that circulation solution pumps, the solution inlet of solar energy PV/T component
It is connected with the outlet of the tube side of condenser；The outlet of the circulation solution pump is connected with pressure reducing film distillation regenerator tube-side inlet
It connects, the tube side outlet of pressure reducing film distillation regenerator is connected with heat exchanger shell side entrance, and the shell side of pressure reducing film distillation regenerator goes out
Mouth is connected with the shell side inlet of condenser；The heat exchanger shell side outlet is connected with the entrance of concentrated solution fluid reservoir, dense molten
The outlet of liquid fluid reservoir connects the spray equipment above multistage dew point evaporation cooling dehumidifier, and the multistage dew point evaporates cooling
The outlet of dehumidifier is connect with the entrance that weak solution pumps, and the outlet of weak solution pump connects the entrance of dilute fluid reservoir, dilute fluid reservoir
Outlet is connected with the tube-side inlet of heat exchanger, the tube-side inlet of the tube side outlet connection condenser of heat exchanger.
The multistage dew point evaporation cooling dehumidifier evaporates cooling dehumidifier axial symmetry periodic arrangement group by three-level dew point
At heat regenerator, dry passage, wet channel circulation are connected in every level-one dew point evaporation cooling dehumidifier, and using air-supply passage as axis
It is symmetrical.
The condenser shell-side outlet connection gas-liquid separator entrance, the outlet of gas-liquid separator respectively with vacuum
Pump is connected with water receiver.
The method that cooling and dehumidifying system dehumidifies is evaporated based on the regenerated multistage dew point of pressure reducing film distillation using described,
Include the following steps:
1) starting concentrated solution pump, solution dehumidification module are opened, and it is cold that concentrated solution flows into multistage dew point evaporation from concentrated solution fluid reservoir
But spray equipment above the air-supply passage in dehumidifier.Start water pump, tap water is sent to multistage dew point evaporation cooling by water pump
Spray equipment above wet channel in dehumidifier.
2) start blower, outdoor fresh air is sent to multistage dew point and evaporates cooling dehumidifier entrance, outdoor fresh air point by blower
It Jin Ru not be in heat regenerator and air-supply passage.Primary air after being pre-chilled in heat regenerator is sent in dry passage, primary air
By low temperature wall cooling in dry passage.Air after cooling enters wet channel as auxiliary air by dry passage tip gap.
Auxiliary air is evaporated the cooling heat for taking away channel table face in wet channel, and the auxiliary air after evaporation is cold enters recuperation of heat
Primary air is pre-chilled in device.Auxiliary air is sent in return air channel and dehumidifier is discharged.Wet channel while and dry passage
It is adjacent with air-supply passage, after the auxiliary air evaporation cooling in wet channel, it can cool down simultaneously to channel two side walls, both
Primary air is cooled down, and has taken away the heat that solution dehumidification process distributes, improves dehumidification efficiency；
3) outdoor fresh air enters in air-supply passage, and fresh air air flows from lower to upper.In addition, concentrated solution pump send concentrated solution to dew
Spray equipment above point evaporation cooling dehumidifier, concentrated solution flow into air-supply passage along wall surface from top to bottom, and air and solution carry out
Caloic exchange, the heat that dehumidification process generates are taken away by wet channel wall surface, and air flows into next stage dew point after being dehumidified and cooling down
Evaporate cooling and dehumidifying.Concentrated solution becomes weak solution and is pumped by weak solution into weak solution fluid reservoir to store after absorbing moisture；
Primary air in second level dew point evaporation cooling dehumidifier in dry passage is the dehumidifying drop in upper level air-supply passage
The primary air of air after temperature, lower temperature and humidity makes second level dew point evaporation cooling dehumidifier dehumidifying and cooling effect more
It is good.Multistage dew point evaporation cooling dehumidifier makes evaporation cooling treatment fresh air provide favourable conditions, evaporates cooling procedure by room
The influence of outer weather conditions is smaller, and the multistage refrigerating efficiency for improving system, the air humidity and temperature that air-supply passage is sent out
It spends lower.
Regeneration method is carried out based on the regenerated multistage dew point evaporation cooling and dehumidifying system of pressure reducing film distillation using described,
Include the following steps:
1) solar energy PV/T module is opened, and solar radiation can be respectively converted into electric energy and thermal energy by solar energy PV/T component, is produced
Raw electric energy is stored in battery, for driving circulation solution to pump and vacuum pump.Start circulation solution pump, weak solution flows into
In solar energy PV/T component solution channel；Start vacuum pump, solution pressure reducing film distillation regeneration module is opened, solar energy PV/T component
The higher weak solution of temperature after heating flows into the tube side of pressure reducing film distillation regenerator, and vacuum pump is in pressure reducing film distillation regenerator
Subnormal ambient is built in shell side, increases membrane module two sides water vapor partial pressure differential, inside vapour of the moisture in weak solution in film
Change, the vapor of generation is diffused into inlet side, solution concentrate solution concentration liter after pressure reducing film distillation regenerator by fenestra
Height, highly concentrated solution flow into the storage of concentrated solution fluid reservoir after over-heat-exchanger cools down；
2) when circulation solution pump is with vacuum pump, recovery of latent heat module is also opened, and weak solution is flowed out from weak solution fluid reservoir, is passed through
Heat exchanger is preheated, and the weak solution after preheating flows into the tube side of condenser, and vacuum pump makes in pressure reducing film distillation regenerator
The vapor of generation is flowed into the shell side of condenser, and vapor condenses in condenser shell side, and condensation water and air flows into
It is separated in gas-liquid separator, air is discharged by vacuum pump, and condensed water is flowed into water tank and collected, and the potential heating for condensing release is dilute
Solution, the weak solution after temperature increases flow into further heat temperature raising in solar energy PV/T component, form the process of solution circulation.
Inventive principle: apparatus of the present invention include solar energy PV/T module interconnected, solution membrane distillation regeneration module, latent
Heat recovery module, multistage dew point evaporate cooling and dehumidifying module；Solar energy PV/T module includes the solar energy PV/ being connected with condenser
T component, battery and coupled solution circulation pump；Solution pressure reducing film distillation regeneration module includes being connected with solution circulation pump
Pressure reducing film distillation regenerator and coupled heat exchanger, and the concentrated solution fluid reservoir being connected with heat exchanger；It is multistage
Dew point evaporation cooling and dehumidifying module includes the concentrated solution pump being connected with concentrated solution fluid reservoir, pumps the multistage dew point being connected with concentrated solution
Cooling dehumidifier and coupled weak solution pump are evaporated, and pumps weak solution fluid reservoir, the heat exchanger being connected with weak solution；
The multistage dew point evaporation cooling dehumidifier is made of three-level dew point evaporation cooling dehumidifier axial symmetry periodic arrangement, each
Heat regenerator, dry passage, wet channel circulation are connected in grade dew point evaporation cooling dehumidifier, and using air-supply passage as axial symmetry point
Cloth.Recovery of latent heat module includes the condenser being connected with heat exchanger and coupled gas-liquid separator, and is divided with gas-liquid
Vacuum pump, water tank from device connection.The present invention is using PV/T component comprehensive utilization solar energy optical-thermal and photovoltaic, by solar radiation
It can be converted to thermal energy and electric energy respectively as the regenerated drive energy of solution.The solar energy PV/T component is by the electric current of generation
It is introduced into battery and stores, electric energy is for driving circulation solution pump and vacuum pump.Utilize solution channel in solar energy PV/T component
For heating weak solution to be regenerated, concentrating regenerative is carried out to weak solution using pressure reducing film distillation regenerator, it is dense molten after regeneration
It flows into concentrated solution fluid reservoir and stores after liquid and weak solution heat exchange cooling, realize the energy storage of solution, the high density accumulation of energy of salting liquid
Performance overcomes the discontinuity of solar energy, and when needing air dewetting, concentrated solution is fed to multistage dew point evaporation cooling and dehumidifying
In device, dehumidifying and cooling is carried out to air using dew point evaporation cooling technique and dehumidifying technology, realizes that the temperature humidity of air is adjusted.
The utility model has the advantages that compared with prior art, the present invention, will using PV/T component comprehensive utilization solar energy optical-thermal and photovoltaic
Solar radiant energy is converted to thermal energy and electric energy as the regenerated drive energy of solution respectively.Solar energy PV/T component is to needing to regenerate
Weak solution heated, improve solution steam partial pressure, efficiently utilize renewable energy as system drive power, be
The energy consumption problem and environmental problem for alleviating air-conditioning system contribute；The introducing of film regeneration techniques efficiently avoids solution regeneration
In the process with the risk of liquid, reduce pollution of the salting liquid to ambient enviroment；Subnormal ambient is built using vacuum pump, increases film
The water vapor partial pressure differential of component two sides increases the membrane flux of vapor, enhances the regeneration effect of membrane module；Film is depressurized to steam
Evaporating regeneration techniques is no longer influenced by surrounding air environment, is effectively overcomed under the climate state of high temperature and humidity to regenerating
The ineffective problem of journey, under hot-humid climate, solution regeneration effect is obvious；And it by multistage dew point evaporation cooling technique and removes
Wet technology organically combines so that evaporate cooling procedure is influenced smaller by outdoor climate conditions, and multistage improves system
Refrigerating efficiency and dehumidification efficiency, so that air humidity and temperature that air-supply passage is sent out are lower.Regeneration methods of the invention, PV/T
Solar radiant energy is converted to thermal energy and electric energy as the regenerated drive energy of solution by component respectively.Reasonable utilization recovery of latent heat
Technology is used for the vapor recovery of latent heat that pressure reducing film distillation goes out to preheat weak solution, enhances the regeneration effect of weak solution, improves
The efficiency of using energy source；Concentrated solution after regeneration stores in concentrated solution fluid reservoir, the huge energy storage characteristic of salting liquid
The problems such as solar energy density is low, intermittent, unstable can be made up.Dehumanization method of the invention, organically steams dew point
Hair cooling technology and dehumidifying technology are wanted to combine, and the primary air after being pre-chilled in heat regenerator is sent in dry passage, primary air
By low temperature wall cooling in dry passage.Auxiliary air is evaporated the cooling heat for taking away channel table face in wet channel.?
It after auxiliary air evaporation cooling in wet channel, can cool down simultaneously to channel two side walls, both primary air be carried out cold
But, and the heat that solution dehumidification process distributes has been taken away, has improved dehumidification efficiency；And the mode of multistep treatment evaporates dew point
Cooling procedure is influenced smaller by Outdoor Air Parameters, improves the refrigerating efficiency of system.
Detailed description of the invention
Fig. 1 is the structural schematic diagram based on the regenerated multistage dew point evaporation cooling and dehumidifying system of pressure reducing film distillation.
Fig. 2 is the detail drawing of multistage dew point evaporation cooling dehumidifier.
Reference signs list:
Solar energy PV/T module I, solution pressure reducing film distillation regeneration module II, multistage dew point evaporate cooling and dehumidifying module III, latent heat
It is recycling module IV, solar energy PV/T component 1, battery 2, circulation solution pump 3, pressure reducing film distillation regenerator 4, heat exchanger 5, dense
Solution fluid reservoir 6, concentrated solution pump 7, dehumidifier 8, weak solution pump 9, weak solution fluid reservoir 10, condenser 11, gas-liquid separator 12,
Water tank 13, vacuum pump 14, water pump 15, blower 16, heat regenerator 17, dry passage 18, wet channel 19, air-supply passage 20, return air
Channel 21.
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated, it should be understood that following specific embodiments are only
For illustrating the present invention rather than limiting the scope of the invention.It should be noted that word " preceding " used in the following description,
" rear ", "left", "right", "up" and "down" refer to that the direction in attached drawing, word "inner" and "outside" refer respectively to direction or remote
Direction from geometric center of specific component.
It include solar energy PV/T interconnected based on the regenerated multistage dew point evaporation cooling and dehumidifying system of pressure reducing film distillation
Module I, solution pressure reducing film distillation regeneration module II, multistage dew point evaporate cooling and dehumidifying module III, recovery of latent heat module IV；Specifically
Connection type is as follows: solar energy PV/T module I includes solar energy PV/T component 1 and coupled circulation solution pump 3, solar energy
The outlet of PV/T component 1 is connect with the entrance of circulation solution pump 3, the entrance of solar energy PV/T component 1 and the tube side of condenser 11
Outlet (taphole) is connected, the outlet and 4 tube-side inlet of pressure reducing film distillation regenerator (solution inlet) phase of circulation solution pump 3
Connection.
Solution pressure reducing film distillation regeneration module II includes the pressure reducing film distillation regenerator 4 being connected with circulation solution pump 3, and with
The connected heat exchanger 5 of pressure reducing film distillation regenerator 4, and the concentrated solution fluid reservoir 6 being connected with heat exchanger 5.Film is depressurized to steam
The tube side outlet (taphole) for evaporating regenerator 4 is connected with 5 shell side inlet of heat exchanger, the shell side of pressure reducing film distillation regenerator 4
Outlet (air outlet slit) is connected with the shell side inlet (air intake) of condenser 11, and 5 shell-side outlet of heat exchanger and concentrated solution are stored up
The entrance of flow container 6 is connected.
Multistage dew point evaporation cooling and dehumidifying module III includes that the concentrated solution being connected with concentrated solution fluid reservoir 6 pumps 7, and with it is dense molten
The connected multistage dew point of liquid pump 7 evaporates cooling dehumidifier 8, and the weak solution being connected with multistage dew point evaporation cooling dehumidifier 8
Pump 9.The outlet of concentrated solution fluid reservoir 6 connects the spray equipment of multistage 8 top of dew point evaporation cooling dehumidifier, multistage dew point evaporation
The outlet of cooling dehumidifier 8 is connect with the entrance of weak solution pump 9, and the outlet of weak solution pump 9 connects the entrance of dilute fluid reservoir 10, dilute
The outlet of fluid reservoir 10 is connected with the tube-side inlet of heat exchanger 5.Wherein multistage dew point evaporation cooling dehumidifier 8 includes by three-level
Dew point evaporates cooling dehumidifier axial symmetry periodic arrangement composition, heat regenerator 17 in every level-one dew point evaporation cooling dehumidifier,
Dry passage 18, the circulation of wet channel 19 are connected, and are axial symmetry distribution with air-supply passage 20.
Recovery of latent heat module IV includes the condenser 11 being connected with heat exchanger 5, the gas-liquid separation being connected with condenser 11
Device 12, and vacuum pump 14, the water tank 13 that device 12 is connected are opened with gas-liquid separation.The tube side outlet connection condensation of heat exchanger 5
The tube-side inlet (solution inlet) of device 11, the entrance of tube side outlet (taphole) and solar energy PV/T component 1 of condenser 11
Connection, condenser 11 shell-side outlet connection gas-liquid separator 12 entrance, the outlet of gas-liquid separator 12 respectively with vacuum pump
14 are connected with water receiver 13.
Using the method to be dehumidified based on the regenerated multistage dew point evaporation cooling and dehumidifying system of pressure reducing film distillation, including under
State step:
1) start blower 16, outdoor fresh air is sent to multistage dew point and evaporates 8 entrance of cooling dehumidifier, outdoor fresh air point by blower 16
It Jin Ru not be in heat regenerator 17 and air-supply passage 20.Primary air after being pre-chilled in heat regenerator 17 is sent in dry passage 18,
Primary air is in dry passage 18 by low temperature wall cooling.Air after cooling enters wet channel 19 by 18 tip gap of dry passage
As auxiliary air.Auxiliary air is evaporated the cooling heat for taking away channel table face in wet channel 19, evaporate it is cold after two
Secondary air enters heat regenerator 17 and primary air is pre-chilled.Auxiliary air is sent in return air channel 21 and dehumidifying is discharged
Device.Wet channel 19 is adjacent with dry passage 18 and air-supply passage 20 simultaneously, can after the auxiliary air evaporation in wet channel 19 is cooling
Cool down simultaneously to channel two side walls, not only primary air was cooled down, but also taken away the heat that solution dehumidification process distributes
Amount improves dehumidification efficiency；
2) outdoor fresh air enters in air-supply passage 20, and fresh air air flows from lower to upper.In addition, concentrated solution pumps 7 for concentrated solution
Send dew point to evaporate 8 top spray equipment of cooling dehumidifier, concentrated solution flows into air-supply passage 20 along wall surface from top to bottom, air with it is molten
Liquid carries out caloic exchange, and the heat that dehumidification process generates is taken away by 19 wall surface of wet channel, under air flows into after being dehumidified and cooling down
Level-one dew point evaporates cooling and dehumidifying.Become weak solution after concentrated solution absorption moisture and weak solution fluid reservoir is sent to by weak solution pump 9
It is stored in 10；
Wherein the primary air in second level dew point evaporation cooling dehumidifier in dry passage 18 is from upper level air-supply passage 20
The primary air of air after interior dehumidifying and cooling, lower temperature and humidity makes second level dew point evaporation cooling dehumidifier dehumidifying drop
Temp effect is more preferably.Multistage dew point evaporation cooling dehumidifier 8 makes evaporation cooling treatment fresh air provide favourable conditions, evaporation cooling
Process is influenced smaller, and the multistage refrigerating efficiency for improving system, the sky that air-supply passage 20 is sent out by outdoor climate conditions
Air humidity degree and temperature are lower.
Regeneration method is carried out using based on the regenerated multistage dew point evaporation cooling and dehumidifying system of pressure reducing film distillation, including under
State step:
1) solar energy PV/T module is opened, and solar radiation can be respectively converted into electric energy and thermal energy by solar energy PV/T component (1),
The electric energy of generation is stored in battery (2), for driving circulation solution pump (3) and vacuum pump (14)., start circulation solution
Pump 3, weak solution flow into solar energy PV/T component 1；Start vacuum pump 14, solution pressure reducing film distillation regeneration module II is opened, too
The higher weak solution of temperature after positive energy PV/T component 1 heats flows into 4 tube side of pressure reducing film distillation regenerator, and vacuum pump 14 is subtracting
Subnormal ambient is built in press mold distillation 4 shell side of regenerator, increases membrane module two sides water vapor partial pressure differential, the water in weak solution
The inside in film is divided to vaporize, the vapor of generation is diffused into inlet side by fenestra, and solution is after pressure reducing film distillation regenerator 4
Concentrate solution concentration increases, and highly concentrated solution flows into concentrated solution fluid reservoir 6 after the cooling of over-heat-exchanger 5 and stores.
2) starting concentrated solution pump 7, solution dehumidification module III is opened, and concentrated solution flows into multistage dew from concentrated solution fluid reservoir 6
In point evaporation cooling dehumidifier 8, concentrated solution and air processed carry out caloic friendship in multistage dew point evaporation cooling dehumidifier 8
It changes, achievees the purpose that air dewetting, become weak solution after concentrated solution absorption moisture and weak solution fluid reservoir is sent to by weak solution pump 9
It is stored in 10.
3) starting circulation solution pump 3 and when vacuum pump 14, recovery of latent heat module IV is also opened, and weak solution is from weak solution liquid storage
It flows out in tank 10, is preheated through over-heat-exchanger 5, the weak solution after preheating flows into the tube side of condenser 12, vacuum pump 14
It is flowed into the vapor generated in pressure reducing film distillation regenerator 4 in the shell side of condenser 11, vapor is in 11 shell side of condenser
Middle condensation, condensation water and air, which flows into gas-liquid separator 12, to be separated, and air is discharged by vacuum pump 14, and condensed water flows into water storage
Collected in case 13, condense the potential heat dilute solution of release, temperature increase after weak solution flow into solar energy PV/T component 1 into
One step heat temperature raising forms the process of solution circulation.
The technical means disclosed in the embodiments of the present invention is not limited only to technological means disclosed in above embodiment, further includes
Technical solution consisting of any combination of the above technical features.
Claims (5)
1. evaporating cooling and dehumidifying system based on the regenerated multistage dew point of pressure reducing film distillation, it is characterised in that: including solar energy PV/T
The electric current of generation is introduced into storage in battery (2) by component (1), the solar energy PV/T component, battery (2) respectively with follow
Ring solution pump (3) is connected with vacuum pump (14)；Taphole and the circulation solution pump (3) of the solar energy PV/T component (1)
Entrance connection, the solution inlet of solar energy PV/T component (1) is exported with the tube side of condenser (11) to be connected；The circulation
The outlet of solution pump (3) is connected with pressure reducing film distillation regenerator (4) tube-side inlet, the tube side of pressure reducing film distillation regenerator (4)
Outlet is connected with heat exchanger (5) shell side inlet, the shell-side outlet of pressure reducing film distillation regenerator (4) and the shell side of condenser (11)
Entrance is connected；Heat exchanger (5) shell-side outlet is connected with the entrance of concentrated solution fluid reservoir (6), concentrated solution fluid reservoir (6)
Outlet connect the spray equipment above multistage dew point evaporation cooling dehumidifier (8)；The multistage dew point evaporates cooling and dehumidifying
The air intake of device (8) is connected with blower (16), and water pump (15) connects the water spray in multistage dew point evaporation cooling dehumidifier (8)
Device；The outlet of described multistage dew point evaporation cooling dehumidifier (8) lower tray is connect with the entrance of weak solution pump (9), dilute
The outlet of solution pump (9) connects the entrance of dilute fluid reservoir (10), and the outlet of dilute fluid reservoir (10) and the tube side of heat exchanger (5) enter
Mouth is connected, and the tube-side inlet of tube side outlet connection condenser (11) of heat exchanger (5), the shell side of the condenser (11) goes out
The entrance of mouthful connection gas-liquid separator (12), and the outlet of gas-liquid separator (12) respectively with vacuum pump (14) and water receiver
(13) it is connected.
2. according to claim 1 evaporate cooling and dehumidifying system, feature based on the regenerated multistage dew point of pressure reducing film distillation
Be: multistage dew point evaporation cooling dehumidifier (8) is made of three-level dew point evaporation cooling dehumidifier, every level-one dew point
Evaporating cooling dehumidifier is by 2 heat regenerators (17), 2 dry passages (18), 2 wet channels (19), an air-supply passage
(20), 2 return air channel (21) compositions, and be axial symmetry distribution with air-supply passage (20).
3. according to claim 2 evaporate cooling and dehumidifying system, feature based on the regenerated multistage dew point of pressure reducing film distillation
Be: the working method of multistage dew point evaporation cooling dehumidifier (8) is: fresh air respectively enters heat regenerator (17) and send
Wind channel (20), the primary air in heat regenerator (17) after pre-cooling are sent in dry passage (18) by low temperature wall cooling, cold
But the air after is entered wet channel (19) by dry passage (18) tip gap, and auxiliary air is evaporated cold in wet channel (19)
But the heat on channel surface is taken away, the auxiliary air after evaporation is cold enters heat regenerator (17) and primary air is pre-chilled, and two
Secondary air is drained into return air channel (21), and takes away the temperature of upper level dry passage wall surface, in the air-supply passage (20),
Solution flows into air-supply passage (20) along wall surface from top to bottom, and fresh air air flows from lower to upper, and air and wall surface solution carry out heat
Mass transter, air flow into next stage dew point evaporation cooling and dehumidifying after being dehumidified and cooling down.
4. being dehumidified using described in claim 1 based on the regenerated multistage dew point evaporation cooling and dehumidifying system of pressure reducing film distillation
Method, it is characterised in that:
1) starting concentrated solution pump, solution dehumidification module are opened, and it is cold that concentrated solution flows into multistage dew point evaporation from concentrated solution fluid reservoir
But spray equipment above the air-supply passage in dehumidifier, starts water pump, and tap water is sent to multistage dew point evaporation cooling by water pump
Spray equipment above wet channel in dehumidifier；
2) start blower (16), outdoor fresh air is sent to multistage dew point and evaporates cooling dehumidifier (8) entrance by blower (16), outdoor
Fresh air respectively enters in heat regenerator (17) and air-supply passage (20), and the primary air in heat regenerator (17) after pre-cooling is sent to
In dry passage (18), primary air is by low temperature wall cooling in dry passage (18), and air after cooling is by dry passage (18) end
Splaying enters wet channel (19) as auxiliary air, and auxiliary air is evaporated cooling in wet channel (19) and takes away channel table
The heat in face, the auxiliary air after evaporation is cold enter heat regenerator (17) and primary air are pre-chilled, and auxiliary air is sent to
In return air channel (21) and dehumidifier is discharged；
3) outdoor fresh air enters in air-supply passage (20), and fresh air air flows from lower to upper；In addition, concentrated solution pump (7) will be dense
Solution send spray equipment above dew point evaporation cooling dehumidifier (8), and concentrated solution flows into air-supply passage (20) along wall surface from top to bottom,
Air carries out caloic with solution and exchanges, and the heat that dehumidification process generates is taken away by wet channel (19) wall surface, and air is dehumidified and drops
Next stage dew point is flowed into after temperature and evaporates cooling and dehumidifying, is become weak solution after concentrated solution absorption moisture and is sent to by weak solution pump (9)
Storage in weak solution fluid reservoir (10).
5. being regenerated using described in claim 1 based on the regenerated multistage dew point evaporation cooling and dehumidifying system of pressure reducing film distillation
Method, it is characterised in that: include the following steps:
1) solar energy PV/T module is opened, and solar radiation can be respectively converted into electric energy and thermal energy by solar energy PV/T component (1),
The electric energy of generation is stored in battery (2), for driving circulation solution pump (3) and vacuum pump (14), starts circulation solution
It pumps (3), solar energy PV/T component (1) solution channel is opened, and weak solution flows into solar energy PV/T component (1)；Starting is true
Sky pump (14), solution pressure reducing film distillation regeneration module are opened, the higher weak solution of temperature after solar energy PV/T component (1) heating
It flows into pressure reducing film distillation regenerator (4) tube side, vacuum pump (14) builds negative pressure ring in pressure reducing film distillation regenerator (4) shell side
Border increases membrane module two sides water vapor partial pressure differential, and the moisture in weak solution is vaporized in the inside of film, and the vapor of generation is logical
It crosses fenestra and is diffused into inlet side, solution concentrate solution concentration after pressure reducing film distillation regenerator (4) increases, highly concentrated solution warp
Concentrated solution fluid reservoir (6) storage is flowed into after over-heat-exchanger (5) cooling；
2) starting concentrated solution pump (7), evaporation cooling and dehumidifying module are opened, and concentrated solution flows into multistage from concentrated solution fluid reservoir (6)
Dew point evaporates in cooling dehumidifier (8), and concentrated solution and air processed carry out heat in multistage dew point evaporation cooling dehumidifier (8)
Mass transter, achieve the purpose that air dewetting cool down, concentrated solution absorb moisture after become weak solution by weak solution pump (9) be sent to it is dilute
Storage in solution fluid reservoir (10)；
3) starting circulation solution pump (3) and when vacuum pump (14), recovery of latent heat module is also opened, and weak solution is from weak solution liquid storage
Outflow, is preheated through over-heat-exchanger (5) in tank (10), and the weak solution after preheating flows into the tube side of condenser (12), very
Sky pump (14) is flowed into the vapor generated in pressure reducing film distillation regenerator (4) in the shell side of condenser (11), and vapor exists
It is condensed in condenser (11) shell side, condensation water and air flows into separation in gas-liquid separator (12), and air is by vacuum pump (14)
Discharge, condensed water are flowed into water tank (13) and are collected, and condense the potential heat dilute solution of release, the weak solution stream after temperature raising
Enter further heat temperature raising in solar energy PV/T component (1), forms the process of solution circulation.
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