CN109028360A - Family formula solution dehumidifying air-conditioning system - Google Patents

Family formula solution dehumidifying air-conditioning system Download PDF

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Publication number
CN109028360A
CN109028360A CN201810668788.1A CN201810668788A CN109028360A CN 109028360 A CN109028360 A CN 109028360A CN 201810668788 A CN201810668788 A CN 201810668788A CN 109028360 A CN109028360 A CN 109028360A
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air
solution
refrigerant
port
film
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CN109028360B (en
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陈瑶
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University of Shanghai for Science and Technology
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University of Shanghai for Science and Technology
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-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
    • F24F3/12Air-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
    • F24F3/14Air-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28Arrangement or mounting of filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00Compression machines, plants or systems, with reversible cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/31Expansion valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-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
    • F24F3/12Air-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
    • F24F3/14Air-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
    • F24F2003/144Air-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 dehumidification only

Abstract

The present invention relates to a kind of family formula solution dehumidifying air-conditioning systems, are made of steam compression heat pump circulation, solution dehumidification and solution regeneration cycle, are divided into two parts of indoor module and outdoor module, indoor module is placed in inside air-conditioned room, installation of ceiling;Outdoor module is placed in outside air-conditioned room, is fixed on construction wall, is connected between indoor module and outdoor module by refrigerant tubing and solution line, there is the air inlet and air exhaust passage of indoor module on construction wall.The system minimizes conventional liquid desiccant air conditioning, uses split type design to be suitble to residential housing to install and use;It is combined using solution dehumidification circulation with steam compression heat pump circulation, to realize the refrigerated dehumidification and the heating in winter humidification of summer simultaneously;The efficiency of air-treatment is promoted while solving solution carrying problem using novel film-refrigerant coil composite component.New system meet residential housing using while be able to ascend the whole efficiency of air-conditioning system.

Description

Family formula solution dehumidifying air-conditioning system
Technical field
The present invention relates to a kind of air-conditioning equipment, in particular to a kind of family formula solution dehumidifying air-conditioning system.
Background technique
Solution dehumidifying air-conditioning system is a kind of air-conditioning side for realizing refrigeration, dehumidifying to air based on liquid desiccant Formula is realizing refrigeration, dehumidifying, air-conditioning etc. using low grade heat energy (such as solar energy, industrial exhaust heat, waste heat, condensation heat etc.) Aspect has considerable application prospect, and has embodied clear superiority in terms of air humidity load processing.Therefore, such system With energy conservation and environmental protection potentiality outstanding, meet the theory of sustainable development.
Currently, either solar energy or waste heat energy drive in system involved in the research and product development that have disclosed Solution dehumidifying air-conditioning system or operation stability is more preferable, the wider array of heat pump driven liquid desiccant air conditioning system of use scope System, their equipment volume and occupied area is all very big, is only applicable to the centralized processing of air, and be used in factory, office/ The special occasions such as in the large public buildings such as commercially/station/airport and museum, gymnasium, natatorium.It is presently disclosed Application and design for solution dehumidifying air-conditioning system miniaturization is also very limited, and it is split type to be suitble to house class building to use Or family formula system is also only at the preliminary trial stage.However, solution dehumidification process is for VOCs(such as toluene, formaldehyde) have well Filtration, bacterium in air and virus, filtering microparticle object (PMs) can be effectively killed, so being very beneficial for changing Kind indoor air quality.In view of social development to reduce the demand of energy consumption of air conditioning system in buildings, haze and environmental plus Acute, people influence the factors such as the rising of IAQ degree of concern, and liquid desiccant air conditioning has in house and Small Civil building field Wide development space is worth the exploitation and design of further progress system.
Further, the design, exploitation and application of existing solution dehumidifying air-conditioning system are all mainly to concentrate on summer work Condition still lacks the research of winter condition, and it is also all only to have the function of refrigerated dehumidification that existing product, which feels most of, in the market.So And what solution reclaiming process was realized for regeneration air is exactly warming and humidifying, so solution dehumidifying air-conditioning system is actually Have heat supply in winter humidification capability, only need to existing system form carry out rational modification, and overcome it is some not yet It solves the problems, such as.The liquid desiccant air conditioning for being provided simultaneously with cooling in summer dehumidifying and winter heating's humidification will be more in line with residential housing Use demand.
On the other hand, solution carrying problem when solution dehumidifying air-conditioning system is run in supply and exhaust is also such system into one Walk the obstacle promoted and applied.For this problem, some technical staff of this field start to develop coating solution dehumidification mode Using.When between solution and humid air there are when water vapor partial pressure differential, permselectivity membrane have allow vapor penetrate but It is the characteristic that the liquid such as solution can be prevented to pass through, effectively air and dehumidification solution can be isolated.Membrane module can The carrying problem of effective solution dehumidification solution, but the heat and mass mode that the solution that compares directly is contacted with air, film group The heat and mass ability of part shows slightly insufficient, and especially dehumidification efficiency is not high, will affect the whole efficiency of system to a certain extent It is horizontal.Therefore, the structure of membrane module is improved and tries to improve its heat and mass ability and solution dehumidifying air-conditioning system The practical demand of optimization.
Summary of the invention
The present invention be directed to solution dehumidifying air-conditioning system design there are the problem of, propose a kind of family formula liquid desiccant air conditioning System, the system minimize conventional liquid desiccant air conditioning, use split type design to be suitble to residential housing to install and use; It is combined using solution dehumidification circulation with steam compression heat pump circulation, to realize the refrigerated dehumidification of summer and the system in winter simultaneously Heat humidification;The effect of air-treatment is promoted while solving solution carrying problem using novel film-refrigerant coil composite component Rate.New system meet residential housing using while be able to ascend the whole efficiency of air-conditioning system.
The technical solution of the present invention is as follows: a kind of family formula solution dehumidifying air-conditioning system, by steam compression heat pump circulation, solution Dehumidifying and solution regeneration cycle are constituted, and are divided into two parts of indoor module and outdoor module, indoor module is placed in air-conditioned room Portion, installation of ceiling;Outdoor module is placed in outside air-conditioned room, is fixed on construction wall, between indoor module and outdoor module It is connected by refrigerant tubing with solution line, there is the air inlet and air exhaust passage of indoor module on construction wall;
Indoor module wind circuit: setting two air ducts in Fresh air handing air duct and return airway, outdoor fresh air is by the first blower from new The input end that wind handles air duct is sent into indoor module, and indoor return air is then by the import of return airway under the action of the second blower End enters the room module, fresh air and return air and carries out heat exchange in the first air-air heat exchanger, what the first air-air heat exchanger came out Fresh air enters the first film-refrigerant coil composite component and carries out humidity exchange with after heat exchange, and it is air-air that fresh air is admitted to second again It is air-air to subsequently enter feeding second after being heat-treated in room air heating cooler for the air intake of top one time of heat exchanger The secondary air end of heat exchanger lower part, fresh air are admitted to air-conditioned room after secondary air end and primary air inlet carry out heat exchange It is interior;Return air continues flow through sky-liquid heat exchanger after the first air-air heat exchanger and completes the return air after heat utilization from return airway Air outlet be discharged it is outdoor;
Outdoor module wind circuit: the air inlet and the second film-refrigerant coil composite component of outdoor module is arranged in third blower Between, outdoor air is entered in unit by the air inlet of outdoor module, and it is compound that outdoor fresh air flows through the second film-refrigerant coil After component, it is discharged by the air outlet of outdoor module;
Cooling in summer agent circuit: refrigerant flows to the first film-refrigerant coil composite component by the second port of electric expansion valve Refrigerant coil first port;Refrigerant by the first film-refrigerant coil composite component refrigerant coil second port stream To the refrigerant tubing first port of room air heating cooler;The refrigerant tubing second end of room air heating cooler Mouth is connected by refrigerant tubing with the four-way reversing valve of outdoor module, and by being connected to compression after pipeline in four-way reversing valve The refrigerant inlet end of machine;The exhaust end refrigerant tubing of compressor is connected to outdoor molten after four-way reversing valve internal duct The refrigerant tubing first port of liquid heating cooler;Refrigerant is heated the refrigerant tubing second end of cooler by outdoor solution Mouth flows to the refrigerant tubing first port of the second film-refrigerant coil composite component;Refrigerant is by the second film-refrigerant coil The refrigerant tubing second port of composite component flows to the first port of electric expansion valve;
Winter refrigeration agent circuit: it is cold that the exhaust end of compressor is connected to room air heating after four-way reversing valve internal pipeline But the inlet end of the refrigerant tubing second port of device, compressor is connected to outdoor solution after four-way reversing valve internal pipeline Heat the refrigerant tubing first port of cooler;Refrigerant flows first to room air heating cooling by the exhaust end of compressor The refrigerant tubing second port of device, subsequent refrigerant are flowed to by the refrigerant tubing first port of room air heating cooler The refrigerant tubing second port of first film-refrigerant coil composite component, refrigerant is by the first film-refrigerant coil complex group Enter electric expansion valve from second port after the refrigerant tubing first port outflow of part, subsequent refrigerant is by electric expansion valve First port flow to the refrigerant tubing second port of the second film-refrigerant coil composite component, and refrigerant is from the second film-refrigeration Enter the refrigerant tubing the of outdoor solution heating cooler after the refrigerant tubing first port outflow of agent coil pipe composite component Two-port netwerk, last refrigerant is by the refrigerant tubing first port of outdoor solution heating cooler through four-way reversing valve internal pipeline The inlet end of compressor is flowed back to afterwards;
Solution circulation loop: the top solution inlet port of the first film-refrigerant coil composite component is connected to room by solution line The outlet of interior solution pump, sets that there are two tapholes in the bottom solution slot of the first film-refrigerant coil composite component, and first is molten Liquid outlet passes sequentially through that the first indoor solvent valve, solvent valve is connected to the import of indoor solution pump in third room;First film-refrigeration The bottom solution second outlet of agent coil pipe composite component is connected to the first end of liquid-liquid heat exchanger by solvent valve in second Room Mouthful;4th port of liquid-liquid heat exchanger then passes through solution line and is connected to solvent valve company in the first indoor solvent valve and third room On adapter tube road;The solution conduit of the top solution inlet port of second film-refrigerant coil composite component and outdoor solution heating cooler Road outlet is connected, and the solution line import of outdoor solution heating cooler is then connected to the outlet of outdoor solution pump, the second film-system Taphole there are two settings in the bottom solution slot of cryogen coil pipe composite component, the second film-refrigerant coil composite component First taphole passes sequentially through that the first outdoor solvent valve, solvent valve is connected to the import of outdoor solution pump outside third room;Second It is molten that film-refrigerant coil composite component the second taphole of bottom by the outer solvent valve of second Room is connected to sky-liquid heat exchanger Liquid import;Sky-liquid heat exchanger taphole is then connected to the second port of liquid-liquid heat exchanger;The third port of liquid-liquid heat exchanger It is then connected to outside the first outdoor solvent valve and third room in solvent valve connecting pipe by solution line, the of liquid-liquid heat exchanger Two-port netwerk and the 4th port communicate, and first port is communicated with third port in liquid-liquid heat exchanger.
First and second films-refrigerant coil composite component structure the design is identical, including multiple permselectivity membranes And its plastic support, refrigerant coil and solution liquid distributor, permselectivity membrane is square hollow structure, using only allowing water The membrane material that molecule passes through, is vertically fixed on plastic support, and multiple permselectivity membranes are in composite component side by side between Gap arranges that the gap between adjacent membrane structure is air flow channel;Solution liquid distributor is placed in the top of each permselectivity membrane, Dehumidification solution is flowed by liquid distributor in the membrane body of each permselectivity membrane, and the intracorporal solution of film vertically flows from top to bottom, solution Taphole collector tube by being connected to each permselectivity membrane lower part flows into the solution tank of bottom;Refrigerant coil is each parallel Snakelike arrangement in air flow channel between permselectivity membrane.
First film-refrigerant coil the composite component is used in summer operation mode as dehumidifying and evaporator, It is used when winter operation mode as solution regeneration and condenser;Second film-refrigerant coil composite component is in summer operation mould It uses when formula as solution regeneration and condenser, is used when operational mode as dehumidifying and evaporator in winter.
Solution used in the solution circulation loop is calcium chloride solution, or the calcium chloride based on calcium chloride solution With the mixed solution of lithium chloride, wherein 70% or more calcium chloride solution accounting;Calcium chloride either based on calcium chloride solution With the mixed solution of lithium bromide, wherein 70% or more calcium chloride solution accounting.
The solution proportion of the first film-refrigerant coil composite component first outlet outflow is entire first film-refrigeration The 70% of the outflow solution of agent coil pipe composite component;The solution proportion of second film-refrigerant coil composite component first outlet outflow It is the 70% of the outflow solution of entire second film-refrigerant coil composite component.
The beneficial effects of the present invention are: formula solution dehumidifying air-conditioning system in family of the present invention, with conventional liquid desiccant air conditioning For unit compared to miniaturization is realized, split type design is also convenient for its use in residential housing;System that employs completely new The mode of wind, and VOCs, bacterium and virus after dehumidification solution is handled in air-supply, microparticle object etc. have obtained effective mistake Filter, so it has more excellent indoor environment clean-up effect relative to conventional domestic air conditioning;The solution dehumidification of the system It is completed in new membrane-refrigerant coil composite component with solution reclaiming process, since the effect of permselectivity membrane dehumidifies Solution is not contacted directly with air, so solving relative to conventional soln dehumidifier/air-conditioning system molten in air-supply and air draft Liquid carrying problem;Pass through the release of cooling capacity and heat in refrigerant coil, Ke Yiti in new membrane-refrigerant coil composite component The caloic exchange efficiency of solution and air in solution dehumidification and solution reclaiming process is risen, so filling relative to conventional film solution dehumidification It sets its air-treatment effect to be reinforced, the energy-saving efficiency of whole system is promoted obvious;The system can be realized simultaneously summer The function of refrigerated dehumidification and winter heating's humidification, this is not available for conventional soln dehumidification air conditioner;Summer is with refrigerated dehumidification mould When formula is run, the humidity load in fresh air is undertaken by dehumidification solution, relative to traditional mechanical dehumidification air-conditioner set, sink temperature It is promoted, energy-saving effect is significant;When winter is to heat humidifying mode operation, since the crystallization temperature of dehumidification solution is very low, And dehumidification solution can reduce the dew-point temperature of outdoor air, which can also be frostless under the conditions of extremely low outdoor temperature Operation, so its use scope is wider relative to general net for air-source heat pump units.
Detailed description of the invention
Fig. 1 is family formula solution dehumidifying air-conditioning system summer operation pattern diagram of the present invention;
Fig. 2 is family formula solution dehumidifying air-conditioning system winter operation pattern diagram of the present invention;
Fig. 3 is inventive film-refrigerant coil composite component structural schematic diagram.
Specific embodiment
Family as shown in Figure 1, 2 formula solution dehumidifying air-conditioning system schematic diagram, system are mainly followed by a steam compression heat pump Ring, a solution dehumidification and solution regeneration cycle are constituted, and are divided into two parts of indoor module and outdoor module.Wherein, indoor mould Block is placed in inside air-conditioned room, installation of ceiling;Outdoor module is placed in outside air-conditioned room, is fixed on construction wall, indoor mould It is connected between block and outdoor module by refrigerant tubing and solution line, is refrigerant tubing and solution in construction wall There are channels for pipeline, while also for indoor module, there are air inlets and air exhaust passage on wall.
Two air ducts in Fresh air handing air duct and return airway are set in indoor module.In Fresh air handing air duct, by fresh air Input end sets gradually the first blower 1, the first air-air heat exchanger 2, the first film-refrigerant coil complex group to room end of blowing Part 3, the second air-air heat exchanger 4 and room air heat cooler 5.Wherein, fresh air is by the first film-refrigerant coil complex group It is introduced into the primary side heat exchange pipeline on the top of the second air-air heat exchanger 4 after the processing of part 3, it is cold to subsequently enter room air heating But device 5, fresh air enter back into the lower part secondary heat exchange pipe of the second air-air heat exchanger 4 after being handled by room air heating cooler 5 Road is ultimately delivered to air-conditioned room by the fresh air that the lower part secondary heat exchange pipeline of the second air-air heat exchanger 4 flows out.Return airway with Fresh air duct intersects at the first air-air heat exchanger 2, and it is air-air by input end to air outlet to set gradually first in return airway Heat exchanger 2, sky-liquid heat exchanger 6 and the second blower 8.It is changed in addition, being additionally provided with liquid-liquid on solution circulating line in indoor module Solvent valve 10 in the indoor solvent valve 9 of hot device 7, first, second Room, solvent valve 11 and indoor solution pump 12 in third room.
It is provided with compressor 13, four-way reversing valve 14, electric expansion valve 17 in outdoor module, and outdoor solution heating is cold But device 15 and the second film-refrigerant coil composite component 16, in addition, the air inlet and of outdoor module is arranged in third blower 22 Between two films-refrigerant coil composite component 16.The first outdoor solvent valve is additionally provided on solution circulation line in outdoor module 18, the outer solvent valve 19 of second Room, the outer solvent valve 20 in third room and outdoor solution pump 21.
A kind of family formula solution dehumidifying air-conditioning system has two kinds of operation methods of summer operation mode and winter operation mode, energy The cooling and dehumidifying and warming and humidifying for enough realizing fresh air, so that indoor temperature and humidity be adjusted.In the system in outdoor module The four-way reversing valve 14 of setting can realize the change of entire heat pump cycle refrigerant flow direction by the switching of its internal duct, To realize the conversion of system summer and winter operation mode.
Family formula solution dehumidifying air-conditioning system is in summer operation mode as shown in Figure 1, the exhaust pipe of compressor 13 is through four-way The refrigerant tubing port 1 of outdoor solution heating cooler 15 is connected to after the switching of 14 internal pipeline of reversal valve, outdoor solution adds The refrigerant tubing port 2 of hot cooler 15 is connected to the refrigerant tubing port of the second film-refrigerant coil composite component 16 1, the refrigerant tubing port 2 of the second film-refrigerant coil composite component 16 is connected to the port 1 of electric expansion valve 17, electronics The port 2 of expansion valve 17 is connected to the refrigeration of the first film-refrigerant coil composite component 3 of indoor module by refrigerant tubing Agent pipe end 1, the refrigerant tubing port 2 of the first film-refrigerant coil composite component 3 are connected to room air heating cooling The refrigerant tubing port 2 of the refrigerant tubing port 1 of device 5, air heating cooler 5 connects back to outdoor by refrigerant line The four-way reversing valve 14 of module is connected after the switching of four-way reversing valve internal pipeline with the air inlet pipeline of compressor 13.In the summer When season mode operation, outdoor fresh air is tentatively cooled down in the first air-air heat exchanger 2 by indoor return air first, then in the first film- It is dehumidified and cools down in refrigerant composite component 3, then fresh air is cooling through room air heating cooler 5 again and by second Air-air heat exchanger 4 is sent into air-conditioned room after carrying out temperature control.
Family formula solution dehumidifying air-conditioning system in winter operational mode as shown in Fig. 2, the exhaust pipe of compressor 13 through four-way The system of the room air heating cooler 5 of indoor module is connected to after the switching of 14 internal duct of reversal valve, by refrigerant line Cryogen pipe end 2, it is multiple that the refrigerant tubing port 1 of room air heating cooler 5 is then connected to the first film-refrigerant coil The refrigerant tubing port 1 of the refrigerant tubing port 2 of seaming element 3, the first film-refrigerant coil composite component 3 passes through refrigeration Agent pipeline connects back to the port 2 of the electric expansion valve 17 of outdoor module, and the port 1 of electric expansion valve 17 is connected to the second film-system The refrigerant tubing port 2 of cryogen coil pipe composite component 16, the refrigerant tubing end of the second film-refrigerant coil composite component 16 The refrigerant tubing port 2 of the outer solution heating cooler 15 of 1 junction chamber of mouth, the refrigerant tubing of outdoor solution heating cooler 15 Port 1 is connected to four-way reversing valve 14, the inlet end pipeline phase after the switching of 13 internal duct of four-way reversing valve with compressor 13 It is logical.In winter when mode operation, outdoor fresh air is tentatively heated in the first air-air heat exchanger 2 by indoor return air first, then exists It is further heated up and is humidified in first film-refrigerant composite component 3, then fresh air adds through room air heating cooler 5 again Heat and by the second air-air heat exchanger 4 carry out temperature control after be sent into air-conditioned room.
The family formula solution dehumidifying air-conditioning system pipeline connecting mode phase that its solution recycles in summer and winter operation mode Together.The top solution inlet port of first film-refrigerant coil composite component 3 is connected to going out for indoor solution pump 12 by solution line Mouthful, it is set in the bottom solution slot of the first film-refrigerant coil composite component 3 there are two taphole, taphole 1 passes sequentially through Solvent valve 11 is connected to the import of indoor solution pump 12 in first indoor solvent valve 9, third room;First film-refrigerant coil is multiple The bottom solution outlet 2 of seaming element 3 is connected to the port 1 of liquid-liquid heat exchanger 7 by solvent valve 10 in second Room.Liquid-liquid heat exchange The port 4 of device 7 is then connected in the first indoor solvent valve 9 and third room in 11 connecting pipe of solvent valve by solution line.The The top solution inlet port of two films-refrigerant coil composite component 16 and the solution line of outdoor solution heating cooler 15 export phase Even, the solution line import of outdoor solution heating cooler 15 is then connected to the outlet of outdoor solution pump 21, the second film-refrigerant There are two taphole, taphole 1 passes sequentially through the first outdoor solution for setting in the bottom solution slot of coil pipe composite component 16 Solvent valve 20 is connected to the import of outdoor solution pump 21 outside valve 18, third room;The bottom of second film-refrigerant coil composite component 16 Portion's taphole 2 is connected to sky -6 solution inlet port of liquid heat exchanger by the outer solvent valve 19 of second Room;Sky -6 solution of liquid heat exchanger goes out Mouth is then connected to the port 2 of liquid-liquid heat exchanger 7.The port 3 of liquid-liquid heat exchanger 7 is then connected to the first outdoor by solution line Outside solvent valve 18 and third room in 20 connecting pipe of solvent valve.
Film as shown in Figure 3-refrigerant coil composite component main structure includes multiple permselectivity membranes and its modeling Expect supporter, refrigerant coil and solution liquid distributor.Wherein, permselectivity membrane is square hollow structure, using only allowing water The membrane material that molecule passes through, is vertically fixed on plastic support, and multiple permselectivity membranes are in composite component side by side between Gap arranges that the gap between adjacent membrane structure is air flow channel;Solution liquid distributor is placed in the top of each permselectivity membrane, Dehumidification solution is flowed by liquid distributor in the membrane body of each permselectivity membrane, and the intracorporal solution of film vertically flows from top to bottom, solution Taphole collector tube by being connected to each permselectivity membrane lower part flows into the solution tank of bottom;Refrigerant coil is each parallel Snakelike arrangement in air flow channel between permselectivity membrane.
The conduct in summer operation mode of first film-refrigerant coil composite component 3 in the formula solution dehumidifying air-conditioning system of family Dehumidifying and evaporator use, and use when operational mode as solution regeneration and condenser in winter;Second film-refrigerant coil is multiple Seaming element 16 is used in summer operation mode as solution regeneration and condenser, in winter as dehumidifying and steaming when operational mode Device is sent out to use.
Solution used is calcium chloride solution in the circulation of solution used in the formula solution dehumidifying air-conditioning system of family, or with chlorine Change mixed solution (70% or more calcium chloride solution accounting), calcium chloride and the bromination of the calcium chloride and lithium chloride based on calcium solution The mixed solution (70% or more calcium chloride solution accounting) of lithium.
The operating scheme of family formula solution dehumidifying air-conditioning system summer a kind of and the connection side of refrigerant and solution line Formula are as follows:
The indoor module of system mainly completes the heat and wet treatment of fresh air and the heat utilization process of return air.Outdoor fresh air is by the first blower 1 is sent into indoor module from the input end in Fresh air handing air duct;Indoor return air is then by return airway under the action of the second blower 8 Input end enter the room module.Fresh air and return air carry out heat exchange in the first air-air heat exchanger 2, and new air temperature is preliminary It reduces;Subsequent fresh air enters the first film-refrigerant coil composite component 3, and the moisture in the component in fresh air is penetrated by selection Property film inside dehumidification solution absorb, while the cooling capacity discharged in refrigerant coil for cool down fresh air and offset dehumidification process In generated heat;It is dehumidified and further the top of second air-air heat exchanger 4 of fresh air feeding after cooling is once entered the wind End then carries out final cooling processing in the cooler 5 of air heating indoors, and it is air-air that the fresh air after cooling then enters second The secondary air end of 4 lower part of heat exchanger, fresh air are sent into air-conditioned room after backheat here, the setting of the second air-air heat exchanger 4 Purpose be to make using supply air temperature is controlled by the higher air of temperature of the room air heating cooler 5 before cooling Must be ultimately delivered to indoor new air temperature will not be too low.Return air continues flow through sky-liquid heat exchange after the first air-air heat exchanger 2 The cooling of hot solution after device 6 is used to regenerate, the return air of final high temperature are discharged outdoor from the air outlet of return airway.First film-system Cryogen coil pipe composite component 3 is used for solution dehumidification process, and room air heats the cooling that cooler 5 is used for fresh air, the two dresses Cooling capacity in setting uses the evaporation cooling capacity of heat pump cycle.
Refrigerant is flowed to the refrigerant coil of the first film-refrigerant coil composite component 3 by the port 2 of electric expansion valve 17 Port 1;Refrigerant flows to room air heating cooling by the refrigerant coil port 2 of the first film-refrigerant coil composite component 3 The refrigerant tubing port 1 of device.The refrigerant tubing port 2 that room air heats cooler 5 passes through refrigerant tubing and outdoor The four-way reversing valve 14 of module is connected, and the refrigerant inlet end by being connected to compressor 13 after pipeline in four-way reversing valve. The exhaust end refrigerant tubing of compressor 13 is connected to outdoor solution heating cooler after 14 internal duct of four-way reversing valve 15 refrigerant tubing port 1;Refrigerant flows to the second film-by the refrigerant tubing port 2 of outdoor solution heating cooler 15 The refrigerant tubing port 1 of refrigerant coil composite component 16;Refrigerant by the second film-refrigerant coil composite component 16 system Cryogen pipe end 2 flows to the port 1 of electric expansion valve 17.Above-mentioned is that the refrigerant line of system under summer operation mode connects Connect mode and refrigerant flow direction control.
The outdoor module of the system completes the processing of heat pump condensation heat and the regenerative process of solution.In third blower 22 Under effect, outdoor air is entered in unit by the air inlet of outdoor module, and it is multiple that outdoor fresh air flows through the second film-refrigerant coil When seaming element 16, the moisture in the second film-refrigerant coil composite component 16 in permselectivity membrane internal moisture removal solution is taken away And absorb the heat pump condensation heat in the second film-refrigerant coil composite component 16 in refrigerant coil, the outdoor of high temperature and humidity Air is finally discharged by the air outlet of outdoor module.It is into the dehumidification solution in the second film-refrigerant coil composite component 16 The pyrosol that condensation heat is heated is absorbed in outdoor solution heating cooler 15, the steam partial pressure of pyrosol is high In outdoor air, so the moisture in solution can be absorbed by outdoor air, solution reclaiming process can be completed, and solution concentration obtains Meaning is restored.
The solution circulation line connection type of the system are as follows: dehumidification solution is by the first film-refrigerant coil composite component 3 The solution liquid distributor at top enters in permselectivity membrane, and top liquid distributor is connected with the outlet of indoor solution pump 12;It removes Weak solution after wet is by entering solution tank after the collector tube outflow of 3 bottom of the first film-refrigerant coil composite component, in solution tank There are two taphole, outlet 1 is connected to the import of indoor solution pump 12 by solution line for setting, is provided on this section of pipeline Solvent valve 11 in first indoor solvent valve 9 and third room, solution tank outlet 1 to the pipe between 3 top solution inlet port of composite component Road is dehumidification solution self-circulation pipeline;The ports 1 that outlet 2 is connected to liquid-liquid heat exchanger 7 by solution line, on this section of pipeline Solvent valve 10 in second Room is set;By outlet 1 and 2 liquid inventory that is flowed out of outlet respectively by the first indoor solvent valve 9 and the Three indoor solvent valves 11 control, wherein the solution proportion flowed out from outlet 1 is entire first film-refrigerant coil composite component 70%.Actified solution enters permselectivity membrane by the solution liquid distributor at 16 top of the second film-refrigerant coil composite component Interior, top liquid distributor is connected with the solution line outlet of outdoor solution heating cooler 15 herein, outdoor solution heating cooling The solution line import of device 15 is then connected to the outlet of outdoor solution pump 21;Second film-refrigerant coil composite component bottom Solution tank is again provided with two outlets, and outlet 1 is connected to the import of outdoor solution pump 21 by solution line, on this section of pipeline It is provided with solvent valve 20 outside the first outdoor solvent valve 18 and third room, solution tank outlet 1 to 16 top solution inlet port of composite component Between pipeline be actified solution self-circulation pipeline;Outlet 2 is connected to sky-liquid heat exchanger 6 of indoor module by solution line The import of solution end, the outer solvent valve 19 of setting second Room on this section of pipeline;The liquid inventory point flowed out by outlet 1 and outlet 2 It is not controlled by solvent valve 20 outside the first outdoor solvent valve 18 and third room, wherein the solution proportion flowed out from outlet 1 is entire the The 70% of two films-refrigerant coil composite component.Second film-refrigerant coil composite component, 16 outlet at bottom 2 flows to indoor module Concentration of the actified solution for dehumidification solution supplement, sky-liquid heat exchanger 6 solution brings out mouth and is connected to liquid-liquid heat exchanger 7 Port 2, the port 2 and port 4 of liquid-liquid heat exchanger 7 communicate, and the port 4 of liquid-liquid heat exchanger 7 is then connected to the first indoor solution Connection solution line in valve and third room between solvent valve, the concentrated solution after regeneration goes out from this is input to dehumidification solution self-loopa In.In addition, 7 inner port 1 of liquid-liquid heat exchanger is communicated with port 3, port 3 is then connected to the first outdoor solvent valve of outdoor module 18 and third room outside connect solution line between solvent valve 20, from 3 outlet at bottom 2 of the first film-refrigerant coil composite component to The pipeline of 7 inner port 1 of liquid-liquid heat exchanger be used for dehumidify after weak solution to regenerate self-loopa conveying.Interior Space-liquid heat exchanger 6 and liquid-liquid heat exchanger 7 effect be to after regeneration concentrated solution cooling, to improve the first film-refrigerant coil composite component 3 The efficiency of interior solution dehumidification process.
A kind of operating scheme in family formula solution dehumidifying air-conditioning system winter and the connection side of refrigerant and solution line Formula are as follows:
The indoor module of system mainly completes the warming and humidifying of fresh air and the heat utilization process of return air.Fresh air and return air are first Heat exchange is carried out in air-air heat exchanger 2, fresh air is tentatively heated;Subsequent fresh air enters the first film-refrigerant coil composite component 3, fresh air absorbs moisture from the solution in the first film-refrigerant coil composite component 3 inside permselectivity membrane, and fresh air is added It is wet, while the heat discharged in refrigerant coil in the first film-refrigerant coil composite component 3 is absorbed, temperature is further It increases;Fresh air after being heated humidification is sent into the air intake of top one time of the second air-air heat exchanger 4, and then air adds indoors Carry out final heating treatment in hot cooler 5, the fresh air after heating then enter 4 lower part of the second air-air heat exchanger it is secondary into Wind end, fresh air are admitted in air-conditioned room after carrying out heat exchange with primary air inlet here, the setting of the second air-air heat exchanger 4 Purpose is to control supply air temperature using the lower air of temperature before being heated by room air heating cooler, so that most It is not too high that it is sent into indoor new air temperature eventually.Return air continues flow through sky-liquid heat exchanger 6 after the first air-air heat exchanger 2 and uses In the heating for the cold soln that outdoor module inputs back, the return air after being finally completed heat utilization is discharged from the air outlet of return airway It is outdoor.First film-refrigerant coil composite component 3 is used for the regenerative process of solution, and room air heats cooler 5 and is used for fresh air Heating, the heat in the two devices uses the condensation heat of heat pump cycle.
Refrigerant line connection type and summer operation mode between various parts under winter operation mode are kept Unanimously, the change of system refrigerant flow direction is realized simply by the switching of 14 internal duct of four-way reversing valve.Wherein, compressor 13 Exhaust end be connected to after 14 internal pipeline of four-way reversing valve room air heating cooler 5 refrigerant tubing port 2, The inlet end of compressor 13 is connected to the refrigerant of outdoor solution heating cooler 15 after 14 internal pipeline of four-way reversing valve Pipe end 1;Refrigerant is flowed first to the refrigerant tubing port of room air heating cooler 5 by the exhaust end of compressor 13 2, subsequent refrigerant flows to the first film-refrigerant coil complex group by the refrigerant tubing port 1 of room air heating cooler 5 The refrigerant tubing port 2 of part 3, refrigerant are flowed out by the refrigerant tubing port 1 of the first film-refrigerant coil composite component 3 Enter electric expansion valve 17 from port 2 afterwards, subsequent refrigerant flow to the second film-refrigerant disk by the port 1 of electric expansion valve 17 The refrigerant tubing port 2 of pipe composite component 16, refrigerant tubing of the refrigerant from the second film-refrigerant coil composite component 16 Port 1 enters the refrigerant tubing port 2 of outdoor solution heating cooler 15 after flowing out, last refrigerant is heated by outdoor solution The inlet end of compressor 13 is flowed back in the refrigerant tubing port 1 of cooler 15 after 14 internal pipeline of four-way reversing valve, completes whole A heat pump cycle.
The outdoor module of the system completes the heat of outdoor air and the absorption process of moisture under winter operation mode.? Under the action of third blower 22, outdoor air is entered in unit by the air inlet of outdoor module, and outdoor fresh air flows through the second film- When refrigerant coil composite component 16, moisture and heat in air are absorbed by the dehumidification solution of low temperature, the room of low temperature and low humidity Outer air is finally discharged by the air outlet of outdoor module.Dehumidification solution into the second film-refrigerant coil composite component 16 To heat the solution for absorbing evaporation cooling capacity in cooler 15 and being cooled down in outdoor solution, the steam partial pressure of cryogenic fluid is lower than Outdoor air completes energy and outdoor air into system so moisture and heat in outdoor air can be absorbed in solution Transfer.The system has apparent frostless operation characteristic, with outside air temperature -5oC, the clammy operating condition of relative humidity 80% is Example.The water capacity of outdoor air is 2.0 g/kg at this time, dew-point temperature is -7.3oC, if the outdoor air of this state directly into Enter evaporator with heat pump and has apparent frosting risk.And in the present system, the second film-refrigerant coil composite component 16 is made simultaneously It is used for outdoor evaporator and dehumidifier, solution can be dehumidified into the moisture in the outdoor air of membrane module and absorbed, so that its (air themperature -5 is greatly reduced in dew-point temperatureoC, when 1.0 g/kg of water capacity, dew-point temperature is down to -15.1oIt C), thus will not There is frosting risk.Wettability power is strong under the worst cold case that dehumidification solution has, non crystallized characteristic (is with common LiCl solution Example, -10oC, when mass concentration is 0.3, equivalent air humidity content is 0.68 g/kg, crystallization temperature down to -57.2oC) it is The basis of this system winter frostless operating scheme design.
Pipeline connecting mode and the solution flow direction that solution recycles under winter operation mode are consistent with summer mode, different Be that complete in the first film-refrigerant coil composite component 3 is solution reclaiming process, the second film-refrigerant coil complex group What is completed in part 16 is solution dehumidification process, 3 outlet at bottom 1 of the first film-refrigerant coil composite component and its top liquid distributor Pipeline between entrance is actified solution self-circulation pipeline, 16 outlet at bottom 1 of the second film-refrigerant coil composite component and Qi Ding Pipeline between portion's liquid distributor entrance is dehumidification solution self-circulation pipeline.In addition, from the first film-refrigerant coil composite component 3 Solution proportion with 1 outflow of bottom solution slot outlet of the second film-refrigerant coil composite component 16 is 70%;After dehumidifying Weak solution flows to indoor module by 16 bottom solution slot of the second film-refrigerant coil composite component outlet 2, by liquid-liquid heat exchanger 7 The indoor solvent valve 9 in port 4 to the first and third room in solution line between solvent valve 11 be input to actified solution self-loopa In;Concentrated solution after regeneration flows to outdoor module by the bottom solution slot outlet 2 of the first film-refrigerant coil composite component 3, by Solution line outside the outdoor solvent valve 18 in 7 port of liquid-liquid heat exchanger 3 to the first and third room between solvent valve 20 is input to dehumidifying In solution self-loopa;The effect of Interior Space-liquid heat exchanger 6 and liquid-liquid heat exchanger 7 is added to the weak solution after outdoor dehumidifying Heat, to improve the efficiency of solution reclaiming process and fresh air warming and humidifying process in the first film-refrigerant coil composite component 3.

Claims (5)

1. a kind of family formula solution dehumidifying air-conditioning system, which is characterized in that by steam compression heat pump circulation, solution dehumidification and solution Regeneration cycle is constituted, and is divided into two parts of indoor module and outdoor module, and indoor module is placed in inside air-conditioned room, furred ceiling peace Dress;Outdoor module is placed in outside air-conditioned room, is fixed on construction wall, passes through refrigerant between indoor module and outdoor module Pipeline is connected with solution line, there is the air inlet and air exhaust passage of indoor module on construction wall;
Indoor module wind circuit: setting two air ducts in Fresh air handing air duct and return airway, outdoor fresh air by the first blower (1) from The input end in Fresh air handing air duct is sent into indoor module, and indoor return air is then by return airway under the action of the second blower (8) Input end enter the room module, fresh air and return air and carry out heat exchange, the first air-air heat exchange in the first air-air heat exchanger (2) The fresh air that device (2) comes out enters the first film-refrigerant coil composite component (3) and carries out humidity exchange with after heat exchange, and fresh air is again It is admitted to the air intake of top one time of the second air-air heat exchanger (4), subsequently enters in room air heating cooler (5) and carries out The secondary air end of the second air-air heat exchanger (4) lower part is sent into after heat treatment, fresh air carries out at secondary air end and primary air inlet It is admitted in air-conditioned room after heat exchange;It is complete that return air continues flow through sky-liquid heat exchanger (6) after the first air-air heat exchanger (2) Outdoor is discharged from the air outlet of return airway at the return air after heat utilization;
Outdoor module wind circuit: third blower (22) be arranged in outdoor module air inlet and the second film-refrigerant coil it is compound Between component (16), outdoor air is entered in unit by the air inlet of outdoor module, and outdoor fresh air flows through the second film-refrigerant After coil pipe composite component, it is discharged by the air outlet of outdoor module;
Cooling in summer agent circuit: it is compound that refrigerant by the second port of electric expansion valve (17) flows to the first film-refrigerant coil The refrigerant coil first port of component (3);Refrigerant by the first film-refrigerant coil composite component (3) refrigerant coil Second port flows to the refrigerant tubing first port of room air heating cooler (5);Room air heats cooler (5) Refrigerant tubing second port is connected by refrigerant tubing with the four-way reversing valve (14) of outdoor module, and is commutated by four-way The refrigerant inlet end of compressor (13) is connected in valve after pipeline;The exhaust end refrigerant tubing of compressor (13) passes through four-way The refrigerant tubing first port of outdoor solution heating cooler (15) is connected to after reversal valve (14) internal duct;Refrigerant by The refrigerant tubing second port of outdoor solution heating cooler (15) flows to the second film-refrigerant coil composite component (16) Refrigerant tubing first port;Refrigerant by the second film-refrigerant coil composite component (16) refrigerant tubing second port Flow to the first port of electric expansion valve (17);
Winter refrigeration agent circuit: the exhaust end of compressor (13) is connected to Interior Space after four-way reversing valve (14) internal pipeline Gas heats the refrigerant tubing second port of cooler (5), and the inlet end of compressor (13) is internal by four-way reversing valve (14) The refrigerant tubing first port of outdoor solution heating cooler (15) is connected to after pipeline;Refrigerant by compressor (13) row Gas end flows first to the refrigerant tubing second port of room air heating cooler (5), and subsequent refrigerant is added by room air The refrigerant tubing first port of hot cooler (5) flows to the refrigerant tubing of the first film-refrigerant coil composite component (3) Two-port netwerk, refrigerant flowed out by the refrigerant tubing first port of the first film-refrigerant coil composite component (3) after from second end Mouth enters electric expansion valve (17), and subsequent refrigerant flow to the second film-refrigerant disk by the first port of electric expansion valve (17) The refrigerant tubing second port of pipe composite component (16), system of the refrigerant from the second film-refrigerant coil composite component (16) The refrigerant tubing second port for entering outdoor solution heating cooler (15) after the outflow of cryogen pipeline first port, finally freezes Agent is flowed back to after four-way reversing valve (14) internal pipeline by the refrigerant tubing first port of outdoor solution heating cooler (15) The inlet end of compressor (13);
Solution circulation loop: the top solution inlet port of the first film-refrigerant coil composite component (3) is connected to by solution line The outlet of indoor solution pump (12) sets in the bottom solution slot of the first film-refrigerant coil composite component (3) and goes out there are two solution Mouthful, the first taphole passes sequentially through that the first indoor solvent valve (9), solvent valve (11) is connected to indoor solution pump in third room (12) import;The bottom solution second outlet of first film-refrigerant coil composite component (3) passes through solvent valve in second Room (10) it is connected to the first port of liquid-liquid heat exchanger (7);4th port of liquid-liquid heat exchanger (7) is then connected by solution line In to the first indoor solvent valve (9) and third room in solvent valve (11) connecting pipe;Second film-refrigerant coil composite component (16) top solution inlet port is connected with the solution line outlet of outdoor solution heating cooler (15), outdoor solution heating cooling The solution line import of device (15) is then connected to the outlet of outdoor solution pump (21), the second film-refrigerant coil composite component (16) there are two taphole, the first solution of the second film-refrigerant coil composite component (16) for setting in bottom solution slot Outlet passes sequentially through that the first outdoor solvent valve (18), solvent valve (20) is connected to the import of outdoor solution pump (21) outside third room; The second taphole of bottom of second film-refrigerant coil composite component (16) is connected to by the outer solvent valve (19) of second Room Sky-liquid heat exchanger (6) solution inlet port;Sky-liquid heat exchanger (6) taphole is then connected to the second end of liquid-liquid heat exchanger (7) Mouthful;The third port of liquid-liquid heat exchanger (7) then pass through solution line be connected to it is molten outside the first outdoor solvent valve (18) and third room In liquid valve (20) connecting pipe, the second port of liquid-liquid heat exchanger (7) and the 4th port are communicated, in liquid-liquid heat exchanger (7) Single port is communicated with third port.
2. family formula solution dehumidifying air-conditioning system according to claim 1, which is characterized in that the first and second films-refrigeration The design of agent coil pipe composite component structure is identical, including multiple permselectivity membranes and its plastic support, refrigerant coil and molten Liquid liquid distributor, permselectivity membrane are square hollow structure, using the membrane material that only permission hydrone passes through, are vertically fixed on modeling Expect on supporter, multiple permselectivity membranes are arranged with gap side by side in composite component, the gap between adjacent membrane structure It is air flow channel;Solution liquid distributor is placed in the top of each permselectivity membrane, and dehumidification solution flows into each selection thoroughly by liquid distributor In the membrane body of the property crossed film, the intracorporal solution of film vertically flows from top to bottom, and solution is by being connected to the molten of each permselectivity membrane lower part Liquid exports the solution tank that collector tube flows into bottom;Refrigerant coil is in the air flow channel between each parallel permselectivity membrane Snakelike arrangement.
3. formula solution dehumidifying air-conditioning system in family according to claim 1 or claim 2, which is characterized in that the first film-refrigerant disk Pipe composite component (3) in summer operation mode as dehumidifying and evaporator use, in winter when operational mode as solution again Raw and condenser uses;Second film-refrigerant coil composite component (16) in summer operation mode as solution regeneration and it is cold Condenser uses, and uses when operational mode as dehumidifying and evaporator in winter.
4. family formula solution dehumidifying air-conditioning system according to claim 3, which is characterized in that molten used in the solution circulation loop Liquid is calcium chloride solution, or the mixed solution of calcium chloride and lithium chloride based on calcium chloride solution, wherein calcium chloride 70% or more solution accounting;The either mixed solution of calcium chloride and lithium bromide based on calcium chloride solution, wherein calcium chloride 70% or more solution accounting.
5. family formula solution dehumidifying air-conditioning system according to claim 4, which is characterized in that the first film-refrigerant coil The solution proportion of composite component (3) first outlet outflow is the outflow solution of entire first film-refrigerant coil composite component (3) 70%;The solution proportion of second film-refrigerant coil composite component (16) first outlet outflow is entire second film-refrigerant The 70% of the outflow solution of coil pipe composite component (16).
CN201810668788.1A 2018-06-26 2018-06-26 Household solution dehumidification air conditioning system Active CN109028360B (en)

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