CN207019212U - Membrane type liquid desiccant air conditioning - Google Patents
Membrane type liquid desiccant air conditioning Download PDFInfo
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- CN207019212U CN207019212U CN201720540945.1U CN201720540945U CN207019212U CN 207019212 U CN207019212 U CN 207019212U CN 201720540945 U CN201720540945 U CN 201720540945U CN 207019212 U CN207019212 U CN 207019212U
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Abstract
The utility model discloses a kind of membrane type liquid desiccant air conditioning to include compressor, auxiliary air cooler, First Heat Exchanger, the second heat exchanger, fluid reservoir, hollow fiber film type regenerator, auxiliary cooler and hollow fiber film type dehumidifier.The application is using carbon dioxide recycle heat pump driving liquid desiccant air conditioning, carbon dioxide is as refrigeration working medium, environment friendly and pollution-free, the refrigerant that can cause environmental disruption than traditional R134a, R22, R407c etc. has a clear superiority, and carbon dioxide working medium has fewer environmental impacts.Meanwhile to follow trans critical cycle rejection temperature higher for carbon dioxide, can meet the needs of dehumidification solution regeneration very well.In addition, the application using hollow fiber film type regenerator and hollow fiber film type dehumidifier as solution dehumidification and the part of regeneration, solve conventional solution dehumidification air conditioner because dehumidification solution directly contacts with air, and produce blow in carrying dehumidification solution the problem of.
Description
Technical field
Refrigerated dehumidification technical field is the utility model is related to, more specifically to a kind of membrane type liquid desiccant air conditioning.
Background technology
In the prior art, independent Temperature and Humidity Control air-conditioning system, due to temperature and humidity control is divided in into two independences
System control, avoid traditional condensing air-conditioning system with same low temperature cold source to dehumidify and cool, and cause energy quality
Waste and high energy consumption.As humidity control system, the indoor whole latent heat loads of liquid desiccant air conditioning burden and part sensible heat are born
Lotus, liquid desiccant air conditioning can be good at that the solution of dehumidifying is carried out to cool to meet that dehumidifying will due to the mobility of dehumidification solution
Ask, carrying out heating to the weak solution after dehumidifying meets regeneration requirements.Heat pump is hot and cold due to being provided for solution dehumidification system simultaneously
Amount, realizes and the energy is made full use of, therefore be that heat pump driven solution dehumidifying air-conditioning system is most potential driving
Mode.
In the prior art, heat pump is generally with R22 (CHCLF2, monochlorodifluoromethane), R134a (1,1,1,2- tetrafluoro second
Alkane), R407C be working medium, above-mentioned working medium can cause serious greenhouse effects, aggravate global warming, cause extreme gas arid,
Phenomena such as flood, hurricane, takes place frequently.Some even damage the ozone layer, and make more solar ultraviolet irradiation earth, threaten the mankind to be good for
Health, the influence to environment are more serious.
In addition, using the working medium heat pump such as R134a, R22, R12, R407c, condensation temperature it is not high (be usually no more than 60 DEG C, it is no
The then dramatic declines of heat pump COP), and exothermic process temperature is basically unchanged, and heat transfer temperature difference is relatively low, can not meet dehumidification solution again
Gave birth to range request (60 DEG C or so of the temperature that solution regeneration needs).
In summary, the cold that heat pump driven solution dehumidifying air-conditioning system provides in the prior art how is efficiently solved
The problem of needing heat to mismatch with regeneration with the cold that solution dehumidification needs with heat and having greater environmental impacts, be current sheet
Art personnel's urgent problem.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of membrane type liquid desiccant air conditioning, the membrane type solution dehumidification
The structure design of air-conditioning can efficiently solve heat pump driven solution dehumidifying air-conditioning system provides in the prior art cold with
The problem of heat needs heat to mismatch and had greater environmental impacts with the cold that solution dehumidification needs with regeneration.
In order to achieve the above object, the utility model provides following technical scheme：
A kind of membrane type liquid desiccant air conditioning, including：
Compressor；
Air cooler is aided in, the working medium import of the auxiliary air cooler connects with the sender property outlet of the compressor, the work
Matter is cooled in the auxiliary air cooler；
First Heat Exchanger, the First Heat Exchanger is interior to have the first heat exchanger channels and the second heat exchanger channels, the auxiliary gas
The inlet communication of the sender property outlet of cooler and first heat exchanger channels, the working medium are dropped in first heat exchanger channels
Temperature；
Second heat exchanger, second heat exchanger is interior to have the 3rd heat exchanger channels and the 4th heat exchanger channels, and the described 3rd changes
The import of the passage of heat and the first heat exchanger channels outlet, the outlet of the 3rd heat exchanger channels and the work of the compressor
Matter inlet communication, the working medium are heated up in the 3rd heat exchanger channels, and the working medium is CO2；
For storing the fluid reservoir of dehumidification solution；
Hollow fiber film type regenerator, dehumidification solution import and the fluid reservoir of the hollow fiber film type regenerator
Outlet, dehumidification solution concentration in the hollow fiber film type regenerator raise；
Auxiliary cooler, the dehumidification solution import of the auxiliary cooler and the dehumidifying of the hollow fiber film type regenerator
Taphole connects, the dehumidification solution outlet of the auxiliary cooler and the inlet communication of the 4th heat exchanger channels, described to remove
Wet solution cools in the auxiliary cooler；
Hollow fiber film type dehumidifier, the dehumidification solution import of the hollow fiber film type dehumidifier and the described 4th heat exchange
The outlet of passage, the dehumidification solution outlet and the import of second heat exchanger channels of the hollow fiber film type dehumidifier connect
Logical, the outlet of second heat exchanger channels and the inlet communication of the fluid reservoir, the dehumidification solution is in the hollow-fibre membrane
Moisture is absorbed in formula dehumidifier and concentration reduces.
Preferably, in above-mentioned membrane type liquid desiccant air conditioning, in addition to regenerator, the regenerator is interior to have the 5th heat exchange logical
Road and the 6th heat exchanger channels, the 5th heat exchanger channels are serially connected with entering for the logical outlet of first heat exchange and the 3rd heat exchanger channels
Between mouthful, the 6th heat exchanger channels be serially connected with the 3rd heat exchanger channels outlet and the working medium import of the compressor it
Between.
Preferably, in above-mentioned membrane type liquid desiccant air conditioning, outlet and the 3rd heat exchanger channels of the 5th heat exchanger channels
Expansion valve is also serially connected between import.
Preferably, in above-mentioned membrane type liquid desiccant air conditioning, in addition to liquid-liquid heat exchanger, the liquid-liquid heat exchanger includes the
Seven heat exchanger channels and the 8th heat exchanger channels, and the 7th heat exchanger channels are serially connected with the dehumidifying of the hollow fiber film type regenerator
Between taphole and the dehumidification solution import of the auxiliary cooler, the 8th heat exchanger channels are serially connected with the doughnut
Between the dehumidification solution outlet and the import of second heat exchanger channels of membrane type dehumidifier.
Preferably, in above-mentioned membrane type liquid desiccant air conditioning, in addition to the fluid reservoir and hollow fiber film type are arranged at again
Solution pump between raw device.
Preferably, in above-mentioned membrane type liquid desiccant air conditioning, in addition to heat recovery system, it includes water receiver, through described
The first cooling water channel and the second cooling water channel through the auxiliary cooler, cooling water for aiding in air cooler flow through described first
It is back to after cooling water channel and the second cooling water channel in water receiver.
Preferably, in above-mentioned membrane type liquid desiccant air conditioning, first cooling water channel and the second cooling water channel are arranged in parallel.
Preferably, in above-mentioned membrane type liquid desiccant air conditioning, in addition to air system, it includes air-to-air total heat exchanger, exhaust blower
With new blower fan, the air inlet of the new blower fan is located outside, and the wind blown out from the air outlet of the new blower fan is successively by described
The fresh air end of air-to-air total heat exchanger and hollow fiber film type dehumidifier；The air outlet of the exhaust blower is located outside, into the row
Air first passes through the air outlet and hollow fiber film type regenerator of the air-to-air total heat exchanger successively before the air inlet of blower fan.
Preferably, in above-mentioned membrane type liquid desiccant air conditioning, in addition to for detecting the second heat exchange of the First Heat Exchanger
First temperature detector of the outlet solution temperature of passage, for detect the second heat exchanger the 4th heat exchanger channels outlet solution
The second temperature detector of temperature, by-passing valve, liquid heats in the fluid reservoir electrical auxiliary heater can be given, be arranged at institute
State the first motorized adjustment valve control at the cooling water inlet of auxiliary air cooler and be arranged at the cold of the auxiliary cooler
But the second motorized adjustment valve control at water inlet, and the by-passing valve can realize the import and outlet of the fourth lane
Between connection.
Preferably, in above-mentioned membrane type liquid desiccant air conditioning, the dehumidification solution is the LiBr that mass concentration is 30~50%
Solution.
From the foregoing, it will be observed that the application, using carbon dioxide recycle heat pump driving liquid desiccant air conditioning, carbon dioxide is as refrigeration
Working medium, environment friendly and pollution-free, the refrigerant that can cause environmental disruption than traditional R134a, R22, R407c etc. has a clear superiority,
Have fewer environmental impacts.Meanwhile to follow trans critical cycle rejection temperature higher for carbon dioxide, can meet that dehumidification solution regenerates very well
Demand.In addition, the application uses hollow fiber film type regenerator and hollow fiber film type dehumidifier as solution dehumidification and again
Raw part, solve conventional solution dehumidification air conditioner because dehumidification solution directly contacts with air, and produce to carry in air-supply and remove
The problem of wet solution.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet for the membrane type liquid desiccant air conditioning that the utility model embodiment provides；
Fig. 2 is the schematic flow sheet for the heat recovery system that the utility model embodiment provides.
In Fig. 1-2：
1st, compressor；2nd, air cooler is aided in；3rd, First Heat Exchanger；4th, regenerator；5th, expansion valve；6th, the second heat exchanger；7、
Fluid reservoir；8th, solution pump；9th, hollow fiber film type regenerator；10th, liquid-liquid heat exchanger；11st, hollow fiber film type dehumidifier；12、
Air-to-air total heat exchanger；13rd, exhaust blower；14th, new blower fan；15th, auxiliary cooler；16th, water receiver；17th, the first electric control valve controls
Device；18th, the second motorized adjustment valve control；19th, the first temperature detector；20th, second temperature detector；21st, auxiliary electrical heater
Device；22nd, by-passing valve；The temperature detectors of 23- the 3rd, 24- moisture detectors；
E, water supply end；F, backwater end.
Embodiment
The purpose of this utility model is to provide a kind of membrane type liquid desiccant air conditioning, the structure of the membrane type liquid desiccant air conditioning
Design can efficiently solve the cold that heat pump driven solution dehumidifying air-conditioning system provides in the prior art and heat with solution
The problem of cold that dehumidifying needs needs heat to mismatch and had greater environmental impacts with regeneration.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-Fig. 2 is referred to, membrane type liquid desiccant air conditioning provided by the utility model includes：Compressor 1, auxiliary air cooler
2nd, First Heat Exchanger 3, the second heat exchanger 6, fluid reservoir 7, hollow fiber film type regenerator 9, auxiliary cooler 15 and hollow fibre
Tie up membrane type dehumidifier 11.Wherein, there are the first heat exchanger channels and the second heat exchanger channels, the first heat exchanger channels in First Heat Exchanger 3
Mutually exchanged heat with the second heat exchanger channels, there are the 3rd heat exchanger channels and the 4th heat exchanger channels in the second heat exchanger 6, the 3rd heat exchange is led to
Road and the 4th heat exchanger channels mutually exchange heat.
Multiple parts of membrane type liquid desiccant air conditioning are segmented into CO2Circulating heat pump system and the dehumidification solution circulatory system,
Wherein CO2Circulating heat pump system includes compressor 1, auxiliary air cooler 2, the first heat exchanger channels and the 3rd heat exchanger channels, compressor 1
Sender property outlet and auxiliary air cooler 2 working medium inlet communication, aid in the sender property outlet of air cooler 2 and entering for the first heat exchanger channels
Mouth connection, the outlet of the first heat exchanger channels and the inlet communication of the 3rd heat exchanger channels, outlet and the compressor 1 of the 3rd heat exchanger channels
Working medium inlet communication.Working medium is CO in the application2, CO2In CO2Circulated in circulating heat pump system, specifically, CO2Compressing
The gaseous state CO of HTHP is compressed to form in machine 12, the then gaseous state CO of HTHP2Into auxiliary air cooler 2 and with auxiliary
Cooling water inside air cooler 2 is exchanged heat, to realize in air cooler 2 is aided in the gaseous state CO of HTHP2Cooled.
CO after cooling in aiding in air cooler 22Carried out into the first heat exchanger channels and with the dehumidification solution in the second heat exchanger channels
Heat exchange, the CO in First Heat Exchanger 32Cooling reaches regeneration temperature (60 DEG C of left sides to flow through the heating of the dehumidification solution of second channel
It is right) requirement.CO2Enter the 3rd heat exchanger channels of the second heat exchanger 6 after being come out from the first heat exchanger channels, and it is logical with the 4th heat exchange
Dehumidification solution in road is exchanged heat with the heat in absorption dehumidifying solution, the CO in the 3rd heat exchanger channels2Heat up and the 4th changes
Dehumidification solution cooling in the passage of heat, is finally down to the dehumidification solution temperature in the 4th heat exchanger channels and meets dehumidification requirements.From
The CO of 3rd heat exchanger channels discharge2Then the working medium inlet flow through compressor 1 returns compressor 1, so completes working medium CO2Circulation.
The dehumidification solution circulatory system includes fluid reservoir 7, hollow fiber film type regenerator 9, auxiliary cooler the 15, the 4th and exchanged heat
Passage, the heat exchanger channels of hollow fiber film type dehumidifier 11 and second.The outlet of fluid reservoir 7 and hollow fiber film type regenerator 9
Dehumidification solution inlet communication, dehumidification solution outlet and the dehumidification solution of auxiliary cooler 15 of hollow fiber film type regenerator 9
Inlet communication, the dehumidification solution outlet of auxiliary cooler 15 and the inlet communication of the 4th heat exchanger channels, the 4th heat exchanger channels go out
The dehumidification solution inlet communication of mouth and hollow fiber film type dehumidifier 11, the dehumidification solution outlet of hollow fiber film type dehumidifier 11
With the inlet communication of the second heat exchanger channels, the outlet of the second heat exchanger channels and the inlet communication of fluid reservoir 7.Specific dehumidification solution follows
During ring, the temperature stored in fluid reservoir 7 is higher, and the relatively low dehumidification solution of concentration enters in hollow fiber film type regenerator 9, and
The dehumidifying that temperature is low, the higher solution of concentration, is flowed out from hollow fiber film type regenerator 9 is formed in hollow fiber film type regenerator 9
Solution enters in auxiliary cooler 15 and exchanged heat with the cooling water inside auxiliary cooler 15, so that dehumidification solution temperature is entered
One step reduces.From auxiliary cooler 15 flow out dehumidification solution enter the 4th heat exchanger channels in and with two in the 3rd heat exchanger channels
Carbonoxide working medium carries out heat exchange, and dehumidification solution cooling is to become the relatively low concentrated solution of temperature after heat exchange, from the 4th heat exchanger channels
The concentrated solution that the temperature of outflow is relatively low enters hollow fiber film type dehumidifier 11, is dehumidified and is finally dehumidified in hollow fiber film type
The solution that temperature is high, concentration is dilute is obtained in device 11.From the solution that the temperature of the outflow of hollow fiber film type dehumidifier 11 is high, concentration is dilute
The second heat exchanger channels are entered back into, and heat exchange is carried out with the carbon dioxide working medium in the first heat exchanger channels, dehumidification solution heating becomes
Into the solution that temperature is higher, concentration is relatively low, fluid reservoir 7 is flowed back to from the import through fluid reservoir 7 after the outflow of the second heat exchanger channels, so
Form the circulation of dehumidification solution.
From the foregoing, it will be observed that the application, using carbon dioxide recycle heat pump driving liquid desiccant air conditioning, carbon dioxide is as refrigeration
Working medium, environment friendly and pollution-free, the refrigerant that can cause environmental disruption than traditional R134a, R22, R407c etc. has a clear superiority,
Have fewer environmental impacts.Meanwhile to follow trans critical cycle rejection temperature higher for carbon dioxide, can meet that dehumidification solution regenerates very well
Demand, solve heat pump driven solution dehumidifying air-conditioning system provides in the prior art cold with heat with solution cooling required
Cold and heating need the unmatched problem of heat.In addition, the application uses hollow fiber film type regenerator 9 and doughnut
Membrane type dehumidifier 11 solves conventional solution dehumidification air conditioner because dehumidification solution and air as solution dehumidification and the part of regeneration
Directly contact, and produce the problem of dehumidification solution is carried in air-supply, and hollow fiber film type dehumidifier/regenerator, packing density
Larger, or fountain dehumidifier/regenerator floor space tower compared to filler is small.
Pressure carbon dioxide is less than its critical pressure during 1 air-breathing of compressor, and evaporating temperature is less than its critical-temperature, and compresses
The pressure at expulsion of machine 1 is higher than its critical pressure, and temperature is higher than its critical-temperature.Heat absorption is subcritical during carbon dioxide recycle
Under the conditions of carry out, heat transfer process is mainly completed by latent heat, liquid carbon dioxide heat absorption vaporization；But circulating cooling exchanged heat
Journey is completed by sensible heat, the process that the condensation heat release compared to synthesis refrigerant R134a, R407c etc. is undergone phase transition, carbon dioxide
Exothermic process is not undergone phase transition, and alternating temperature amplitude is larger, and the amount of heat needed with dehumidification solution regenerative process coincide.And
And membrane type liquid desiccant air conditioning, first by CO2The cold and heat of trans critical cycle heat pump are applied in solution dehumidification simultaneously
With in regenerative process.
In the present embodiment, CO2Circulating heat pump system also includes regenerator 4, and has the 5th heat exchange logical in regenerator 4
Road and the 6th heat exchanger channels, the 5th heat exchanger channels are serially connected between the logical outlet of the first heat exchange and the import of the 3rd heat exchanger channels,
The logical outlet of i.e. first heat exchange and the inlet communication of the 5th heat exchanger channels, outlet and the 3rd heat exchanger channels of the 5th heat exchanger channels
Inlet communication.6th heat exchanger channels are serially connected between the outlet of the 3rd heat exchanger channels and the working medium import of compressor 1, i.e., the 3rd changes
The outlet of the passage of heat and the inlet communication of the 6th heat exchanger channels, the outlet of the 6th heat exchanger channels connect with the working medium import of compressor 1
It is logical.The effect of regenerator 4 is after making the carbon dioxide after cooling by First Heat Exchanger 3 and being heated up by the second heat exchanger 6
Carbon dioxide is exchanged heat, and can improve the efficiency of heat pump.
Further, expansion valve 5 is also serially connected between the outlet and the import of the 3rd heat exchanger channels of the 5th heat exchanger channels, i.e.,
Become to enter after low-temp low-pressure liquid carbon dioxide the after the expanded valve 5 of carbon dioxide of the outlet outflow of the 5th heat exchanger channels
Three heat exchanger channels.
In above-described embodiment, the gaseous carbon dioxide of the HTHP of the sender property outlet of compressor 1 first passes through auxiliary air cooler
2, with aiding in the cooling water of air cooler 2 to be exchanged heat, the gaseous carbon dioxide after cooling is molten in First Heat Exchanger 3 and dehumidification regeneration system
Liquid is exchanged heat, and is raised the temperature of dehumidification solution and is reached (60 DEG C or so) requirements of regeneration temperature, the gaseous state titanium dioxide of low temperature
Carbon becomes low-temp low-pressure liquid two after the 5th pipeline and expansion valve 5 of regenerator 4 successively after First Heat Exchanger 3 comes out
Carbonoxide, subsequently into the second heat exchanger 6, exchanged heat in the second heat exchanger 6 with dehumidification solution, the heat of absorption dehumidifying solution
It is reduced to dehumidification solution temperature and meets dehumidification requirements.Here auxiliary air cooler 2 can be by perceiving the of First Heat Exchanger 3
Whether the temperature of two heat exchanger channels outlet reaches the temperature (60 DEG C or so) of setting, the water-supply quantity of regulation auxiliary air cooler 2 with
Ensure the temperature of setting.
In another embodiment, the dehumidification solution circulatory system can also include liquid-liquid heat exchanger 10, and liquid-liquid heat exchanger 10 wraps
Include the 7th heat exchanger channels and the 8th heat exchanger channels, and the 7th heat exchanger channels be serially connected with hollow fiber film type regenerator 9 dehumidifying it is molten
Liquid export and the dehumidification solution import of auxiliary cooler 15 between, i.e., hollow fiber film type regenerator 9 dehumidification solution outlet with
7th heat exchanger channels entrance connects, the outlet of the 7th heat exchanger channels and the dehumidification solution inlet communication of auxiliary cooler 15.8th changes
The passage of heat is serially connected between the dehumidification solution outlet of hollow fiber film type dehumidifier 11 and the import of the second heat exchanger channels, i.e., hollow
Dehumidification solution outlet and the 8th heat exchanger channels inlet communication of fiber membrane type dehumidifier 11, the outlet of the 8th heat exchanger channels are changed with second
The inlet communication of the passage of heat.Liquid-liquid heat exchanger 10 can be such that the dense dehumidification solution of high temperature after regeneration enters with the dilute dehumidification solution of low temperature
Row heat exchange, is advantageous to regeneration/dehumidifying of dehumidification solution.
Further, the dehumidification solution circulatory system also includes being arranged between fluid reservoir 7 and hollow fiber film type regenerator 9
Solution pump 8, in order to convey dehumidification solution into hollow fiber film type regenerator 9.
In above-mentioned membrane type liquid desiccant air conditioning, heat recovery system can also be included, heat recovery system includes water receiver 16, worn
The first cooling water channel of auxiliary air cooler 2 and the second cooling water channel through auxiliary cooler 15 are crossed, it is cold that cooling water flows through first
But it is back to after water route and the second cooling water channel in water receiver 16.Specifically, the first cooling water channel and the second cooling water channel are in parallel
Set, certain first cooling water channel and the second cooling water channel can also be arranged in series.Heat recovery system has water supply end E and backwater
F, wherein backwater end F is held to be connected with water receiver 16.When carrying out recuperation of heat, cooling water is from water supply end E, respectively by auxiliary gas
Cooler 2, auxiliary cooler 15；Then backwater end F is converged to, can be used for preparing into the water in water receiver 16, water receiver 16
The hot water of life.Cooling water temperature is 20 DEG C or so, and auxiliary air cooler working medium end temperature is up to 90 DEG C, by aiding in air cooler
Cooling water can have 5~10 DEG C of temperature rise；35 DEG C or so of auxiliary cooler solution end entrance temperature, cooling water can have 3~6
DEG C temperature rise.These cooling waters after being heated are collected into water receiver 16, it is possible to reduce heat the energy consumption of hot water for life, make
The energy of whole system is fully used, and cooling water here can be municipal water supply, can also be the satisfaction such as rivers, lake
The natural cooling source of sanitary condition.
Preferably, above-mentioned membrane type liquid desiccant air conditioning also includes the second heat exchanger channels for detecting First Heat Exchanger 3
First temperature detector 19 of outlet solution temperature, for detect the second heat exchanger 6 the 4th heat exchanger channels outlet solution temperature
The second temperature detector 20 of degree, by-passing valve 22, the electrical auxiliary heater 21 that can be heated to liquid in fluid reservoir 7, it is arranged at
It is described auxiliary air cooler 2 cooling water inlet at the first motorized adjustment valve control 17 and be arranged at auxiliary cooler 15
The second motorized adjustment valve control 18 at cooling water inlet, and by-passing valve 22 can realize the import and outlet of fourth lane
Between connection.So the first cooling water channel of auxiliary air cooler 2 by adjusting output, can ensure the of First Heat Exchanger 3
The temperature of two heat exchanger channels outlet meets the needs of dehumidification solution regeneration at setting value (60 DEG C or so).Auxiliary cooler 15
Second cooling water channel can ensure the temperature of the heat exchanger channels import of the second heat exchanger 6 the 4th in setting value by adjusting output
(20 DEG C or so), meets the needs of dehumidification solution dehumidifying.Dehumidification solution is that mass concentration is 30~50% in the embodiment
LiBr solution.
Due to humidity load change, the blasting humidity value changes of setting, fresh air temperature change, the change of air draft humidity, air draft temperature
Degree change etc. factor, cause system capacity to mismatch, First Heat Exchanger 3 caloric receptivity and the thermal discharge of the second heat exchanger 6 and solution it is cold
But the cold needed needs heat match control process as follows with heating：
When humidity load increase, the rise of new air temperature, the blasting humidity step-down set, cause the 4th of the second heat exchanger 6
For the temperature of the outlet of heat exchanger channels higher than the temperature (20 DEG C or so) set, i.e. cold prepared by the second heat exchanger 6 is less than solution
Cold required for cooling.Now second temperature detector 20 detects that temperature is higher than setting value, second temperature detector 20 with
Second motorized adjustment valve control 18 produces linkage, increases the aperture of valve, makes the cooling water flow by auxiliary cooler 15
Increase.After a period of time, second temperature detector 20 detects the temperature of the outlet of the heat exchanger channels of the second heat exchanger 6 the 4th again,
If temperature is higher than setting value, the second motorized adjustment valve control 18 acts, and increases valve opening；If temperature is just equal to setting
Value, the second motorized adjustment valve control 18 keep original valve opening；If temperature is less than setting value, the control of the second electric control valve
Device 18 acts, and reduces valve opening, while by-passing valve is opened.After a period of time, said process is repeated.
When humidity load reduces, new air temperature reduces, the blasting humidity of setting raises, cause the 4th of the second heat exchanger 6
For the temperature of heat exchanger channels outlet less than the temperature (20 DEG C or so) of setting, i.e. it is cold that cold prepared by the second heat exchanger 6 is more than solution
Required cold.Now second temperature detector 20 detects that temperature is less than setting value, second temperature detector 20 and
Two motorized adjustment valve controls 18 produce linkage, reduce the aperture of valve, subtract the cooling water flow by auxiliary cooler 15
It is small, while by-passing valve 22 is opened.After a period of time, second temperature detector 20 detects the 4th heat exchange of the second heat exchanger 6 again
The temperature of channel outlet, if temperature is higher than setting value, the second motorized adjustment valve control 18 acts, and increases valve opening；It is if warm
Degree is just equal to setting value, and the second motorized adjustment valve control 18 keeps original valve opening；If temperature is less than setting value, second
Motorized adjustment valve control 18 acts, and reduces valve opening, while by-passing valve 22 is opened.After a period of time, said process is repeated.
When air draft water capacity diminishes, temperature of outgoing air raises, and make the temperature of the outlet of the heat exchanger channels of First Heat Exchanger 3 second
Degree is higher than the temperature (60 DEG C or so) of setting, i.e., the heat of First Heat Exchanger preparation 3 is more than the heat required for solution regeneration.This
When the first temperature detector 19 detect that temperature is higher than setting value, the first temperature detector 19 and the first motorized adjustment valve control
17 produce linkage, increase the aperture of valve, make by aiding in the cooling water flow of air cooler 2 to increase.After a period of time, the first temperature
Degree detector 19 detects the temperature of the outlet of the heat exchanger channels of the second heat exchanger 6 second again, if temperature is higher than setting value, the first electricity
Dynamic governor valve control device 17 acts, and increases valve opening；If temperature is just equal to setting value, the first motorized adjustment valve control 17
Keep original valve opening；If temperature is less than setting value, the first motorized adjustment valve control 17 acts, and reduces valve opening, together
When electrical auxiliary heater 21 open.After a period of time, said process is repeated.
When air draft water capacity becomes big, temperature of outgoing air reduces, and the temperature for exporting the second heat exchanger channels of First Heat Exchanger 3
Less than the temperature (60 DEG C or so) of setting, i.e., the heat that prepared by First Heat Exchanger 3 is less than the heat required for solution regeneration.Now
First temperature detector 19 detects that temperature is less than setting value, the first temperature detector 19 and the first motorized adjustment valve control 17
Produce linkage and reduce valve opening, while electrical auxiliary heater 21 is opened.After a period of time, the first temperature detector 19 again
The temperature of the outlet of the heat exchanger channels of two heat exchanger 6 second, if temperature is higher than setting value, the first motorized adjustment valve control 17 is dynamic
Make, increase valve opening；If temperature is just equal to setting value, the first motorized adjustment valve control 17 keeps original valve opening；
If temperature is less than setting value, the first motorized adjustment valve control 17 is acted, and reduces valve opening, and electrical auxiliary heater 21 is opened.
After a period of time, said process is repeated.
Under most of operating conditions, the cold of solution cooling required and heating need heat approximate phase on absolute figure
Deng by the cooling of liquid-liquid heat exchanger 10, auxiliary cooler 15, the second heat exchanger 6, solution can be cooled to setting value (20
DEG C or so), and the heat exchange amount of First Heat Exchanger 3 and the auxiliary heat exchange amount sum of air cooler 2 are equal to the wasted work and second of compressor 1
The heat exchange amount sum of heat exchanger 6, after in view of the heat exchange efficiency of First Heat Exchanger 3 and heat exchange amount etc., First Heat Exchanger 3
Heat exchange amount is still higher than the heat that solution heating needs, therefore aids in air cooler 2 to need operation to take away unnecessary heat, this part band
The heat walked can be used for preparing hot water for life.Now auxiliary air cooler 2 is run, and electrical auxiliary heater 21 is not run.
Under a small number of operating conditions, when humidity load increase, setting blasting humidity step-down when, moisture that solution needs away
Increase, if more than during the maximum moisture removal of system design, the heat that now prepared by First Heat Exchanger 3 can not meet that dehumidifying will
Ask, now the first electric control valve 17 is closed, and electrical auxiliary heater 21 just brings into operation, and such case seldom occurs.
In above-mentioned membrane type liquid desiccant air conditioning, air system can also be included, it includes air-to-air total heat exchanger 12, exhaust blower 13
With new blower fan 14, the air inlet of new blower fan 14 is located outside, and the wind blown out from the air outlet of new blower fan 14 changes by full heat successively
The fresh air end of hot device 12 and hollow fiber film type dehumidifier 11.The air outlet of exhaust blower 13 is located outside, into exhaust blower 13
Air first passes through the air outlet and hollow fiber film type regenerator 9 of air-to-air total heat exchanger 12 successively before air inlet.In new blower fan 14
In the presence of, outdoor fresh air successively by air-to-air total heat exchanger 12 fresh air end and hollow fiber film type dehumidifier 11 is laggard enters the room
It is interior.In the presence of exhaust blower 13, indoor exhaust wind is successively by air outlet and the hollow fiber film type regeneration of air-to-air total heat exchanger 12
Outdoor is drained into again after device 9.The effect of air-to-air total heat exchanger 12 is the fresh air for making outdoor high temperature high humidity with the air draft of indoor low temperature low humidity
Total heat exchange is carried out, the organic efficiency to air draft energy can be improved.Specifically, outdoor air is successively by new blower fan 14 and full heat
Total heat exchange is carried out with the indoor exhaust wind under being acted on by exhaust blower 13 behind the fresh air end of heat exchanger 12, fresh air is tentatively cooled,
Dehumidifying, subsequently into hollow fiber film type dehumidifier 11, carry out caloic with dehumidification solution and exchange, fresh air is further cooled,
Dehumidifying, the fresh air being finally processed are admitted to interior.Indoor exhaust wind passes through exhaust blower 13 and the air outlet of air-to-air total heat exchanger 12
Afterwards, with carrying out Total heat exchange by the outdoor fresh air under the effect of new blower fan 14, air draft is made tentatively to heat up, subsequently into doughnut
Membrane type rewetting device, carry out caloic with actified solution and exchange, high temperature weak solution is become low temperature concentrated solution, last air draft becomes high temperature
The outdoor that the air of high humidity is discharged.The dehumidification solution circulatory system also includes being used to detect hollow fiber film type dehumidifier 11 weeks
The 3rd temperature detector 23 and moisture detector 24 for the humiture enclosed.
The dehumidification solution that the dehumidification solution circulatory system uses in above-described embodiment is the LiBr that mass concentration is 30~50%
Solution.The entrance of solution pump 8 connects the outlet of fluid reservoir 7, and in the presence of solution pump 8, dehumidification solution passes through doughnut successively
Diaphragm type regenerator 9, the 7th heat exchanger channels of liquid-liquid heat exchanger 10, auxiliary cooler 15, the 4th heat exchange of the second heat exchanger 6 are logical
Road, the 8th heat exchanger channels of liquid-liquid heat exchanger 10 and the second heat exchanger channels of First Heat Exchanger 3, in last fluid reservoir 7.Molten
In the presence of liquid pump 8, the relatively low dehumidification solution of temperature higher concentration passes through hollow fiber film type regenerator 9, in hollow-fibre membrane
Caloic is carried out with the wind after the air outlet of full heat exchanger to exchange, become the higher solution of temperature low concentration in formula regenerator 9；So
Afterwards by the 7th heat exchanger channels of liquid-liquid heat exchanger 10, so that the dehumidification solution of high temperature and the dehumidification solution of low temperature are exchanged heat,
Reduce the load of cooling and heated solution；Enter auxiliary cooler 15 from the dehumidification solution of the first heat exchanger channels outflow, aiding in
15 inner dehumidification solution of cooler makes dehumidification solution temperature further reduce by the heat exchange with cooling water；Then from supplement heat rejecter
The dehumidification solution that device 15 is discharged enters the second heat exchanger channels of the second heat exchanger 6, and carries out heat exchange with carbon dioxide working medium, becomes
The concentrated solution relatively low into temperature；The relatively low concentrated solution of temperature enters hollow fiber film type dehumidifier 11, is removed in hollow fiber film type
Caloic is carried out with the fresh air at the fresh air end by air-to-air total heat exchanger 12 to exchange, become the solution of temperature high-concentration dilute in wet device 11；
Then from hollow fiber film type dehumidifier 11 discharge dehumidification solution successively by liquid-liquid heat exchanger 10 the 8th heat exchanger channels and
Second heat exchanger channels of First Heat Exchanger 3, heat exchange is carried out with carbon dioxide working medium, the concentration for becoming temperature higher concentration is relatively low
Solution, into fluid reservoir 7 after can be used for prepare domestic hot-water.
Wherein, the effect of hollow fiber film type regenerator 9 is：High temperature weak solution is allowed with passing through the air outlet of air-to-air total heat exchanger 12
Wind carry out caloic exchange, in the process, hydrone can only be passed through, and dehumidification solution is blocked on the solution channel of pellicle
Side, while the exchange process of heat is not influenceed, the moisture in high temperature weak solution is discharged into air draft in the presence of vapour pressure, is made
Solution becomes the solution that temperature is relatively low, concentration is higher.The effect of hollow fiber film type dehumidifier 11 is：Low temperature concentrated solution is allowed with passing through
The wind for crossing the fresh air end of air-to-air total heat exchanger 12 carries out caloic exchange, in the process, can only pass through hydrone, and solution is blocked on
The solution channel side of pellicle, while the exchange process of heat is not influenceed, the moisture in fresh air discharges in the presence of vapour pressure
Into low temperature concentrated solution, solution is set to become the solution that temperature is higher, concentration is relatively low.The effect of auxiliary cooler 15 is：To entering
The temperature of dehumidification solution before second heat exchanger 6 is controlled, and the dehumidification solution made it into before the second heat exchanger 6 is maintained at 20
DEG C or so.
The heat exchanger 6 of First Heat Exchanger 3 and second can be double pipe heat exchanger.Regenerator 4 and liquid-liquid heat exchanger 10
It can be bushing type.The all parts of membrane type liquid desiccant air conditioning are connected by pipeline, and pipeline outer wrap has thermal insulating material
Material.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (10)
- A kind of 1. membrane type liquid desiccant air conditioning, it is characterised in that including：Compressor (1)；Air cooler (2) is aided in, the working medium import of the auxiliary air cooler (2) connects with the sender property outlet of the compressor (1), institute Working medium is stated in the auxiliary air cooler (2) to be cooled；First Heat Exchanger (3), the First Heat Exchanger (3) is interior to have the first heat exchanger channels and the second heat exchanger channels, the auxiliary The inlet communication of the sender property outlet of air cooler (2) and first heat exchanger channels, the working medium is in first heat exchanger channels Cooled；Second heat exchanger (6), has the 3rd heat exchanger channels and the 4th heat exchanger channels in second heat exchanger (6), and the described 3rd The import of heat exchanger channels and the first heat exchanger channels outlet, outlet and the compressor of the 3rd heat exchanger channels (1) working medium inlet communication, the working medium are heated up in the 3rd heat exchanger channels, and the working medium is CO2；For storing the fluid reservoir (7) of dehumidification solution；Hollow fiber film type regenerator (9), dehumidification solution import and the fluid reservoir of the hollow fiber film type regenerator (9) (7) outlet, dehumidification solution concentration in the hollow fiber film type regenerator (9) raise；Auxiliary cooler (15), dehumidification solution import and the hollow fiber film type regenerator of the auxiliary cooler (15) (9) dehumidification solution outlet, the dehumidification solution outlet of the auxiliary cooler (15) and entering for the 4th heat exchanger channels Mouth connection, the dehumidification solution cool in the auxiliary cooler (15)；Hollow fiber film type dehumidifier (11), the dehumidification solution import and the described 4th of the hollow fiber film type dehumidifier (11) The outlet of heat exchanger channels, dehumidification solution outlet and second heat exchanger channels of the hollow fiber film type dehumidifier (11) Inlet communication, the outlet of second heat exchanger channels and the inlet communication of the fluid reservoir (7), the dehumidification solution is described Moisture is absorbed in hollow fiber film type dehumidifier (11) and concentration reduces.
- 2. membrane type liquid desiccant air conditioning according to claim 1, it is characterised in that also including regenerator (4), the backheat There are the 5th heat exchanger channels and the 6th heat exchanger channels, the 5th heat exchanger channels are serially connected with what first heat exchange was led in device (4) Between outlet and the import of the 3rd heat exchanger channels, the 6th heat exchanger channels be serially connected with the outlets of the 3rd heat exchanger channels with Between the working medium import of the compressor (1).
- 3. membrane type liquid desiccant air conditioning according to claim 2, it is characterised in that the outlet of the 5th heat exchanger channels with Expansion valve (5) is also serially connected between the import of 3rd heat exchanger channels.
- 4. membrane type liquid desiccant air conditioning according to claim 1, it is characterised in that also including liquid-liquid heat exchanger (10), institute Stating liquid-liquid heat exchanger (10) includes the 7th heat exchanger channels and the 8th heat exchanger channels, and the 7th heat exchanger channels be serially connected with it is described Between the dehumidification solution outlet and the dehumidification solution import of the auxiliary cooler (15) of hollow fiber film type regenerator (9), institute State the 8th heat exchanger channels be serially connected with the hollow fiber film type dehumidifier (11) dehumidification solution outlet and the described second heat exchange it is logical Between the import in road.
- 5. membrane type liquid desiccant air conditioning according to claim 1, it is characterised in that also include being arranged at the fluid reservoir (7) solution pump (8) between hollow fiber film type regenerator (9).
- 6. membrane type liquid desiccant air conditioning according to claim 1, it is characterised in that also including heat recovery system, it includes Water receiver (16), second through the first cooling water channel of the auxiliary air cooler (2) and through the auxiliary cooler (15) Cooling water channel, cooling water are back in water receiver (16) after flowing through first cooling water channel and the second cooling water channel.
- 7. membrane type liquid desiccant air conditioning according to claim 6, it is characterised in that first cooling water channel and second cold But water route is arranged in parallel.
- 8. membrane type liquid desiccant air conditioning according to claim 1, it is characterised in that also including air system, it is included entirely Heat exchanger (12), exhaust blower (13) and new blower fan (14), the air inlet of the new blower fan (14) is located outside, from the fresh air The wind of the air outlet blowout of machine (14) passes through fresh air end and the hollow fiber film type dehumidifier of the air-to-air total heat exchanger (12) successively (11)；The air outlet of the exhaust blower (13) is located outside, into the air inlet of the exhaust blower (13) before air first successively By the air outlet and hollow fiber film type regenerator (9) of the air-to-air total heat exchanger (12).
- 9. membrane type liquid desiccant air conditioning according to claim 1, it is characterised in that also include changing for detecting described first The first temperature detector (19) of the outlet solution temperature of second heat exchanger channels of hot device (3), for detect the second heat exchanger (6) The second temperature detectors (20) of outlet solution temperature of the 4th heat exchanger channels, by-passing valve (22), the fluid reservoir can be given (7) electrical auxiliary heater (21) of liquid heating, the first electricity being arranged at the cooling water inlet of the auxiliary air cooler (2) in Dynamic governor valve control device (17) and the second electric control valve being arranged at the cooling water inlet of the auxiliary cooler (15) Controller (18), and the by-passing valve (22) can realize the connection between the import and outlet of the 4th heat exchanger channels.
- 10. the membrane type liquid desiccant air conditioning according to any one of claim 1-9, it is characterised in that the dehumidification solution The LiBr solution for being 30~50% for mass concentration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720540945.1U CN207019212U (en) | 2017-05-16 | 2017-05-16 | Membrane type liquid desiccant air conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720540945.1U CN207019212U (en) | 2017-05-16 | 2017-05-16 | Membrane type liquid desiccant air conditioning |
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| Publication Number | Publication Date |
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| CN207019212U true CN207019212U (en) | 2018-02-16 |
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| CN201720540945.1U Expired - Fee Related CN207019212U (en) | 2017-05-16 | 2017-05-16 | Membrane type liquid desiccant air conditioning |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979573A (en) * | 2017-05-16 | 2017-07-25 | 广东工业大学 | Membrane type liquid desiccant air conditioning |
| CN109579199A (en) * | 2019-01-22 | 2019-04-05 | 上海交通大学 | A kind of heat pump driven semipermeable membrane dehumidifying ultrasonic atomizatio regeneration solution air-conditioning system |
| CN114893832A (en) * | 2022-05-23 | 2022-08-12 | 中国人民解放军海军工程大学 | Solution dehumidification system driven by carbon dioxide transcritical refrigeration cycle coupling |
-
2017
- 2017-05-16 CN CN201720540945.1U patent/CN207019212U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979573A (en) * | 2017-05-16 | 2017-07-25 | 广东工业大学 | Membrane type liquid desiccant air conditioning |
| CN106979573B (en) * | 2017-05-16 | 2022-09-16 | 广东工业大学 | Membrane type solution dehumidifying air conditioner |
| CN109579199A (en) * | 2019-01-22 | 2019-04-05 | 上海交通大学 | A kind of heat pump driven semipermeable membrane dehumidifying ultrasonic atomizatio regeneration solution air-conditioning system |
| CN114893832A (en) * | 2022-05-23 | 2022-08-12 | 中国人民解放军海军工程大学 | Solution dehumidification system driven by carbon dioxide transcritical refrigeration cycle coupling |
| CN114893832B (en) * | 2022-05-23 | 2024-02-02 | 中国人民解放军海军工程大学 | Solution dehumidification system driven by carbon dioxide transcritical refrigeration cycle coupling |
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