CN206207784U - Absorption refrigeration unit internal heat component, absorption refrigeration unit and matrix - Google Patents

Absorption refrigeration unit internal heat component, absorption refrigeration unit and matrix Download PDF

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Publication number
CN206207784U
CN206207784U CN201621127345.4U CN201621127345U CN206207784U CN 206207784 U CN206207784 U CN 206207784U CN 201621127345 U CN201621127345 U CN 201621127345U CN 206207784 U CN206207784 U CN 206207784U
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China
Prior art keywords
heat exchanger
refrigeration unit
absorption refrigeration
unit internal
heat
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CN201621127345.4U
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邱伟
杨如民
武祥辉
武维建
刘谚武
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Sichuan Jieyuan Technology Co Ltd
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Sichuan Jieyuan Technology Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62—Absorption based systems

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  • Sorption Type Refrigeration Machines (AREA)

Abstract

The utility model absorption refrigeration unit internal heat component, absorption refrigeration unit and matrix are related to Absorption Refrigerator field, absorption refrigeration unit internal heat component is disclosed, it is any one in regenerator, absorber, condenser, evaporator or solution heat exchanger.When absorption refrigeration unit internal heat component is any one in regenerator, absorber, condenser or evaporator, absorption refrigeration unit internal heat component includes shell-and-tube heat exchanger, and its heat exchanger tube is made of plastics.When absorption refrigeration unit internal heat component is solution heat exchanger, absorption refrigeration unit internal heat component includes plate type heat exchanger, and its heat exchange wallboard is made of plastics.The Absorption Refrigerator that the absorption refrigeration unit internal heat component provided using the utility model is manufactured, its main screw lift can be substantially reduced.Meanwhile, the corrosion resistance of plastics is stronger, can avoid being produced on-condensible gas by solution corrosion, increased the operating efficiency of Absorption Refrigerator.Plastics are easy to sealing, can effectively reduce sealing difficulty.

Description

Absorption refrigeration unit internal heat component, absorption refrigeration unit and matrix
Technical field
The utility model is related to Absorption Refrigerator field, and in particular to a kind of intraware of Absorption Refrigerator, especially Condenser, evaporator, absorber and regenerator that it is related to Absorption Refrigerator.
Background technology
Absorption Refrigerator,, by the use of binary solution as working medium, wherein low boiling component is used as refrigerant for it, i.e., using it Evaporate to freeze；High boiling component is used as absorbent, i.e., complete working cycles using its absorption to refrigerant steam.Example Such as lithium-bromide absorption-type refrigerating machine, with pure water as refrigerant, i.e., by pure water, evaporation endothermic realizes refrigeration under high vacuum environment for it Function.Refrigerant steam after heat absorption evaporation is brominated the absorption of lithium solution, carrying, thermal regeneration, condensation, after becoming liquid again again, Heat absorption evaporation, endlessly carries out kind of refrigeration cycle again.
In Absorption Refrigerator, condenser, evaporator, absorber and regenerator are the main portions for realizing kind of refrigeration cycle Part, heat exchanger tube therein is made using heat transfer coefficient brass higher or other metal materials, and this causes Absorption Refrigerator Overall weight is big, it is difficult to realize the lightweight of Absorption Refrigerator.Meanwhile, metal produces hydrogen etc. easily by solution corrosion On-condensible gas, reduces the operating efficiency of Absorption Refrigerator；Metallic heat exchanging tube is high to sealing technology requirement, and sealing cost is big.
Utility model content
It is to overcome the deficiencies in the prior art that the purpose of this utility model is, there is provided changed inside a kind of absorption refrigeration unit Hot component, its heat exchanger tube and heat exchange wallboard are made of plastics, so as on the premise of heat exchange property is met so that absorption system Cold realizes lightweight.The heat exchanger tube of plastic production, seals easy simultaneously；Plastics corrosion resistance is strong, can avoid not coagulating Gas, increased the operating efficiency of Absorption Refrigerator.
Another purpose of the present utility model is to provide one kind to possess above-mentioned absorption refrigeration unit internal heat component Absorption refrigeration unit.
3rd purpose of the present utility model is to provide a kind of absorption refrigeration for possessing above-mentioned absorption refrigeration unit Matrix.
Embodiment of the present utility model is achieved through the following technical solutions：
Absorption refrigeration unit internal heat component, it is that regenerator, absorber, condenser, evaporator or solution heat are handed over Any one in parallel operation.In absorption refrigeration unit internal heat component is regenerator, absorber, condenser or evaporator Any one when, absorption refrigeration unit internal heat component include shell-and-tube heat exchanger.Shell-and-tube heat exchanger possesses shell Formula heat exchanger shell and heat exchanger tube.Heat exchanger tube is arranged in shell-and-tube heat exchanger housing.Heat exchanger tube is made of plastics.When absorption When refrigeration unit internal heat component is solution heat exchanger, absorption refrigeration unit internal heat component includes plate-type heat-exchange Device；Plate type heat exchanger possesses plate type heat exchanger housing and heat exchange wallboard.Heat exchange wallboard is arranged in plate type heat exchanger housing；Heat exchange Wallboard is made of plastics.
Inventor has found by research, in order to improve heat transfer property, in condenser, evaporator, absorber and regenerator Heat exchanger tube is made using ratio of heat transfer coefficient higher metal material.The heat exchange wallboard of solution heat exchanger is also made up of metal material. But metal material density is big, causes Absorption Refrigerator overall weight big.In addition, metallic heat exchanging tube and radiating wallboard are also present On-condensible gas influence Absorption Refrigerator operating efficiency, and sealing technology is produced to require that high, sealing cost is big by solution corrosion Problem.Compared to metal material, the density of plastics is low.The weight of plastics is (such as yellow far below metal material under same volume Copper).Therefore, be made of plastics for heat exchanger tube and heat exchange wallboard by inventor.Using the absorption of the utility model embodiment offer The Absorption Refrigerator of refrigeration unit internal heat component manufacture, its main screw lift can be substantially reduced.The heat exchange of plastic production Pipe and heat exchange wallboard sealing are easy.The corrosion resistance of plastics is stronger, can avoid being produced on-condensible gas by solution corrosion, increases The operating efficiency of Absorption Refrigerator is added.
In a kind of embodiment of the present utility model, the pipe thickness of heat exchanger tube is 0.1~0.5mm.
In a kind of embodiment of the present utility model, the pipe thickness of heat exchanger tube is 0.15mm.
In a kind of embodiment of the present utility model, some row's heat exchanger tubes are arranged in levels；Adjacent two rows heat exchanger tube it Between be arranged at intervals with multiple support bars；Support bar is used to support adjacent two rows heat exchanger tube.
In a kind of embodiment of the present utility model, support bar is made of plastics.
In a kind of embodiment of the present utility model, support bar and heat exchanger tube are made up of otherwise identical plastic.
In a kind of embodiment of the present utility model, the external diameter of heat exchanger tube is 3mm~5mm.Positioned at the adjacent of same row The centre-to-centre spacing of heat exchanger tube is 4mm~6mm.The centre-to-centre spacing of neighbouring heat exchanger tube is 5mm~8mm.
In a kind of embodiment of the present utility model, the external diameter of heat exchanger tube is 3mm.Positioned at the adjacent heat exchanger tube of same row Centre-to-centre spacing be 4mm.The centre-to-centre spacing of neighbouring heat exchanger tube is 7mm.
In a kind of embodiment of the present utility model, when absorption refrigeration unit internal heat component is regenerator, absorbs During any one in device, condenser or evaporator, shell-and-tube heat exchanger housing is made of plastics.
In a kind of embodiment of the present utility model, shell-and-tube heat exchanger housing and heat exchanger tube are made up of otherwise identical plastic.
In a kind of embodiment of the present utility model, the thickness of the wallboard that exchanges heat is 0.1mm~0.5mm.
In a kind of embodiment of the present utility model, the thickness of the wallboard that exchanges heat is 0.15mm.
In a kind of embodiment of the present utility model, textured shape raised line is distributed on heat exchange wallboard, for supporting heat exchange wall Plate, and the fluid for flowing through raised line is produced turbulent flow to improve heat transfer coefficient.
In a kind of embodiment of the present utility model, raised line is made of plastics.
In a kind of embodiment of the present utility model, raised line and heat exchange wallboard are made up of otherwise identical plastic.
In a kind of embodiment of the present utility model, heat exchange wallboard is arranged in multilayer.The plate of the heat exchange wallboard of adjacent two layers Wall spacing is 0.5mm~3mm.
In a kind of embodiment of the present utility model, the wooden partition spacing of the heat exchange wallboard of adjacent two layers is 1mm.
In a kind of embodiment of the present utility model, when absorption refrigeration unit internal heat component is solution heat exchanger When, plate type heat exchanger housing is made of plastics.
In a kind of embodiment of the present utility model, plate type heat exchanger housing and heat exchange wallboard are made up of otherwise identical plastic.
In a kind of embodiment of the present utility model, absorption refrigeration unit internal heat component is evaporator.Heat exchanger tube Flowed for cooling matchmaker water between heat exchanger tube and shell-and-tube heat exchanger housing for supplying cold water flow inside.
In a kind of embodiment of the present utility model, each row's heat exchanger tube towards the side of absorber be provided with ramp type every Liquid plate, ramp type liquid islocation plate is used to retain chilled water, only allows refrigerant steam to pass through.
In a kind of embodiment of the present utility model, absorption refrigeration unit internal heat component is condenser；Heat exchanger tube It is internal to be flowed for Cooling Water, flowed for cooling matchmaker steam between heat exchanger tube and shell-and-tube heat exchanger housing.
In a kind of embodiment of the present utility model, each row's heat exchanger tube towards the side of regenerator be provided with ramp type every Liquid plate, ramp type liquid islocation plate is used to retain the drop in refrigerant steam, only allows refrigerant steam to pass through.
In a kind of embodiment of the present utility model, absorption refrigeration unit internal heat component is absorber or regeneration Device, heat exchanger shell and heat exchanger tube collectively form shell-and-tube heat exchanger.It is used to supply between heat exchanger tube and shell-and-tube heat exchanger housing Lithium-bromide solution flows.When absorption refrigeration unit internal heat component is absorber, heat exchanger tube inside is used for Cooling Water Flowing；When absorption refrigeration unit internal heat component is regenerator, heat exchanger tube inside is for supplying hot water flowing.
In a kind of embodiment of the present utility model, absorption refrigeration unit internal heat component is also distributed including solution Device；Solution dispenser is arranged on shell-and-tube heat exchanger top；Solution dispenser inside has cavity, and solution dispenser bottom is use In the spray solution face of heat exchanger tube spray solution downwards.
In a kind of embodiment of the present utility model, solution dispenser is made of plastics.
In a kind of embodiment of the present utility model, solution dispenser and shell-and-tube heat exchanger housing are by otherwise identical plastic system Into.
In a kind of embodiment of the present utility model, spray solution face size is identical with shell-and-tube heat exchanger upper surface. The spray solution face of solution dispenser is provided with some discharge orifices, the heat exchanger tube table for solution to be uniformly distributed to lower section Face.
It is each when absorption refrigeration unit internal heat component is absorber in a kind of embodiment of the present utility model Row's heat exchanger tube is provided with ramp type liquid islocation plate towards the side of evaporator, and ramp type liquid islocation plate is used to retain chilled water, only allows Refrigerant steam passes through.When absorption refrigeration unit internal heat component is regenerator, each row's heat exchanger tube is towards the one of condenser Side is provided with ramp type liquid islocation plate, and ramp type liquid islocation plate is used to retain the drop in refrigerant steam, only allows refrigerant steam to pass through.
Absorption refrigeration unit, including above-mentioned any one absorption refrigeration unit internal heat component.
Absorption refrigeration matrix, including several above-mentioned absorption refrigeration units.
The technical solution of the utility model at least has the following advantages that and beneficial effect：
The utility model embodiment provide absorption refrigeration unit internal heat component in, heat exchanger tube and heat exchange wallboard by Plastics are made.The absorption refrigeration that the absorption refrigeration unit internal heat component provided using the utility model embodiment is manufactured Machine, its main screw lift can be substantially reduced.Meanwhile, the heat exchange seal of tube of plastic production is easy.The corrosion resistance of plastics is stronger, Can avoid being produced on-condensible gas by solution corrosion, increased the operating efficiency of Absorption Refrigerator.
The absorption refrigeration unit that the utility model embodiment is provided, due to possessing inside above-mentioned absorption refrigeration unit Heat-exchanging component, thus also have that weight is low, sealing easily, corrosion resistance is stronger, high working efficiency beneficial effect.
The absorption refrigeration matrix that the utility model embodiment is provided, due to possessing above-mentioned absorption refrigeration unit, because This also has that weight is low, sealing easily, corrosion resistance is stronger, high working efficiency beneficial effect.
Brief description of the drawings
It is attached to what is needed to use in embodiment below for the technical scheme of clearer explanation the utility model embodiment Figure is briefly described.It should be appreciated that the following drawings illustrate only some implementation methods of the present utility model, it is right to be not construed as The limitation of the utility model scope.To those skilled in the art, without creative efforts, Neng Gougen Other accompanying drawings are obtained according to these accompanying drawings.
During Fig. 1 is the utility model embodiment, the structural front view of condenser and side regenerator；
During Fig. 2 is the utility model embodiment, the structure sectional view of condenser and side regenerator；
During Fig. 3 is the utility model embodiment, the Structure explosion diagram of condenser and side regenerator；
During Fig. 4 is the utility model embodiment, the assembly state diagram of evaporator and side absorber；
During Fig. 5 is the utility model embodiment, the structure sectional view of evaporator and side absorber；
During Fig. 6 is the utility model embodiment, the Structure explosion diagram of evaporator and side absorber；
Fig. 7 be the utility model embodiment in, the dimensional structure diagram of solution heat exchanger；
During Fig. 8 is the utility model embodiment, the structural representation of exposed heat exchange wallboard after section components has been removed.
In figure：100- condensers；101- shell-and-tube heat exchanger housings；102- heat exchanger tubes；103- support bars；104- throttles Hole；200- regenerators；201- shell-and-tube heat exchanger housings；202- heat exchanger tubes；203- solution dispensers；204- spray solutions face； 205- discharge orifices；206- support bars；207- supply holes；210- shell-and-tube heat exchangers；501- ramp type liquid islocation plates；300- evaporates Device；301- shell-and-tube heat exchanger housings；302- heat exchanger tubes；303- support bars；400- absorbers；401- shell-and-tube heat exchanger shells Body；402- heat exchanger tubes；403- solution dispensers；404- spray solutions face；405- discharge orifices；406- support bars；410- shell-and-tubes Heat exchanger；502- ramp type liquid islocation plates；600- solution heat exchangers；601- weak solution entrances；602- concentrated solutions are exported；604- is dense Solution goes to the passage of absorber shell side；606- concentrated solution entrances；608- weak solutions are exported；609- weak solutions go to regenerator Passage；612- weak solution passages；614- concentrated solution passages；620- heat exchange wallboards；622- raised lines；624- plate type heat exchanger housings； 631- solution pumps.
Specific embodiment
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with accompanying drawing, to this Technical scheme in utility model embodiment carries out clear, complete description.Obviously, described embodiment is the utility model A part of embodiment, rather than whole embodiments.
Therefore, the detailed description below to embodiment of the present utility model is not intended to limit this claimed practicality newly The scope of type, but it is merely representative of section Example of the present utility model.Based on the embodiment in the utility model, this area is general The every other embodiment that logical technical staff is obtained under the premise of creative work is not made, belongs to the utility model guarantor The scope of shield.
It should be noted that in the case where not conflicting, feature in embodiment and embodiment in the utility model and Technical scheme can be mutually combined.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.
, it is necessary to explanation in description of the present utility model, term " on ", the orientation of the instruction such as D score or position relationship It is or the orientation or position that the utility model product is usually put when using based on orientation shown in the drawings or position relationship Relation, or the usual orientation for understanding of those skilled in the art or position relationship, this kind of term are for only for ease of description originally Utility model and simplified description, must be with specific orientation, with specific rather than instruction or the signified device of hint or element Azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
Embodiment：
In Absorption Refrigerator, condenser, evaporator, absorber, regenerator and solution heat exchanger are to realize refrigeration The critical piece of circulation, heat exchanger tube therein and heat exchange wallboard are using heat transfer coefficient metal material (such as brass) system higher Into this causes Absorption Refrigerator overall weight big, it is difficult to realize the lightweight of Absorption Refrigerator.Meanwhile, the easy quilt of metal Solution corrosion, and the on-condensible gases such as hydrogen are produced, reduce the operating efficiency of Absorption Refrigerator.
Therefore, the present embodiment provides a kind of absorption refrigeration unit internal heat component, the intraware can be condensation Any one in device, evaporator, absorber, regenerator or solution heat exchanger.Condenser, evaporator, absorber or regeneration The heat exchanger tube of device is to adopt thin-walled heat exchanger tube made of plastic, and the heat exchange wallboard of solution heat exchanger is to adopt made of plastic thin Wallboard part, so as on the premise of heat exchange property is met so that Absorption Refrigerator realizes lightweight.Plastics are anticorrosive simultaneously Performance is strong, can avoid on-condensible gas, increased the operating efficiency of Absorption Refrigerator.
In the present embodiment, so-called plastics refer to engineering plastics (engineering-plastics), such as makrolon (Polycarbonate, PC), polyamide (nylon, Polyamide, PA), polyformaldehyde (Polyacetal, Polyoxy Methylene, POM), polyphenylene oxide (Polyphenylene Oxide, PPO), polyester (PET, PBT), polyphenylene sulfide (Polyphenylene Sulfide, PPS), poly- aryl ester etc..
The present embodiment is with the condenser inside lithium-bromide absorption-type refrigerating machine, evaporator, absorber, regenerator and solution warm Illustrated as a example by exchanger.
Condenser 100 and regenerator 200
Reference picture 1, during Fig. 1 is the utility model embodiment, the structural front view of condenser 100 and side regenerator 200. In Fig. 1, right side be condenser 100, left side be regenerator 200, between condenser 100 and regenerator 200 for ramp type every Liquid plate 501.Ramp type liquid islocation plate 501 is considered as a part for condenser 100, it is also possible to regard a part for regenerator 200 as. The effect of the regenerator 200 in left side is to be heated lithium bromide weak solution, the chilled water absorbed in weak solution is constantly vaporized Become refrigerant steam, refrigerant steam condenses after lowering the temperature to the cold into the condenser 100 on right side, the liquid refrigerants as high pressure low temperature Water.It is a large amount of to absorb stream in evaporator tube side when the chilled water in condenser 100 enters the evaporator of refrigeration machine by throttle orifice The heat of dynamic cold water and vaporize, so as to reach to the purpose of cold water cooling refrigeration.The effect of condenser of the present utility model 100 It is that the refrigerant steam for producing regenerator 200 carries out cooling condensation, becomes chilled water.Ramp type liquid islocation plate 501 is used to retain Left side be the heating evaporation of regenerator 200 produce refrigerant steam in carry secretly drop, only allow refrigerant steam cross ramp type every Liquid plate 501 and enter condenser 100.
Condenser 100 is illustrated below.
Reference picture 2, during Fig. 2 is the utility model embodiment, the structure sectional view of condenser 100 and side regenerator 200.
Condenser 100 is shell-and-tube heat exchanger, including shell-and-tube heat exchanger housing 101 and heat exchanger tube 102.In the present embodiment In, some row's heat exchanger tubes 102 (illustrate only part heat exchanger tube 102 in levels arrangement in figure.It should be understood that in other tools In body implementation method, heat exchanger tube 102 can use other arrangement modes.) heat exchanger tube 102 is fixed on shell-and-tube heat exchanger housing In 101.Operationally, circulation has cooling water in heat exchanger tube 102, and the refrigerant steam from regenerator 200 is in heat exchanger tube 102 and pipe Flowed between shell heat exchanger housing 101.Cooling water in heat exchanger tube 102 is used to carry out cooling condensation to refrigerant steam, obtains Chilled water.
In condenser 100, heat exchanger tube 102 is made of plastics, and the pipe thickness of heat exchanger tube 102 is 0.1mm~0.5mm. In the present embodiment, the pipe thickness of heat exchanger tube 102 is 0.15mm.Relative to metallic heat exchanging tube, so very thin thickness is in consubstantiality More than ten times of heat exchange area is increased under product, the not enough problem of plastics heat transfer property is compensate for so that the heat transfer of heat exchanger tube 102 Performance can reach the requirement of Absorption Refrigerator.Because heat exchanger tube 102 is made of plastics, relative to use heat dissipation metal pipe, The weight of condenser 100 can be greatly lowered, it is achieved thereby that lightweight.Because plastics possess excellent corrosion resistance, So as to can also avoid producing on-condensible gas because heat exchanger tube 102 is corroded, the operating efficiency of Absorption Refrigerator is increased. Meanwhile, relative to metallic heat exchanging tube, its sealing is more prone to the heat exchanger tube 102 of plastic production.
Inventor has found by research, the condenser of traditional use metallic heat exchanging tube, due to metal sealing difficulty compared with Greatly, in order to ensure the sealing property of condenser so that its housing can only be made of steel plate or casting, so as to further increase The weight of condenser, and corrosion-resistant are added.
Therefore, in the present embodiment, the shell-and-tube heat exchanger housing 101 of condenser 100 is also adopted by plastics and is made so that pipe Sealing between shell heat exchanger housing 101 and heat exchanger tube 102 can realize readily, the thickness of shell-and-tube heat exchanger housing 101 Degree can be reduced.So, the weight of condenser 100 is further mitigated, the corrosion resistance of condenser 100 is also strengthened. Used as a kind of embodiment, shell-and-tube heat exchanger housing 101 and heat exchanger tube 102 can be made of the plastics of identical type, be passed through Shooting Technique is integrally formed, so as to provide excellent sealing property.
Lightweight except realizing condenser 100, inventor also wants to realize the miniaturization of condenser 100.Miniaturization Condenser 100 can make Absorption Refrigerator overall volume smaller such that it is able to suitable for family or other to refrigeration work consumption will Seek commercial situations not high.However, inventor has found during condenser 100 is minimized, the heat exchange effect of condenser 100 Rate is not high, is difficult to meet use requirement after miniaturization.Inventor has found that the heat exchange efficiency of condenser 100 is not high by research The reason for be：Occur after heat exchange heat release is liquefied in heat exchanger tube with heat exchanger tube 102 when refrigerant steam enters in condenser 100 102 surfaces form water droplet, and collect under gravity and freely drip, and condensed water constantly drips to lower section during lower drop Each row's heat exchanger tube 102, forms on the surface of heat exchanger tube 102 and declines moisture film, the especially moisture film at the bottom camber line of heat exchanger tube 102 Thickness is often very thick, increases the heat transmission resistance between refrigerant steam and heat exchanger tube 102, is unfavorable for refrigerant steam and heat exchanger tube 102 Contact, so as to cause heat exchanger effectiveness not high.
Therefore, the centre-to-centre spacing between the external diameter and adjacent heat exchange tubes 102 of inventor's exchange heat pipe 102 is optimized. The external diameter of heat exchanger tube 102 is set to 3mm~5mm, the centre-to-centre spacing for being located at the adjacent heat exchanger tube 102 of same row is set to 4mm~6mm, 5mm~8mm is set to by the centre-to-centre spacing of neighbouring heat exchanger tube 102.In the present embodiment, heat exchanger tube 102 External diameter is 3mm；It is 4mm positioned at the centre-to-centre spacing of the adjacent heat exchanger tube 102 of same row；The center of neighbouring heat exchanger tube 102 Away from being 7mm.Using above-mentioned pipe with small pipe diameter, the heat exchanger tube 102 of big density array, larger heat-exchange surface is obtained in unit volume Product, so as to realize smaller volume on the premise of heat exchange efficiency high is met.Between between the adjacent heat exchanger tube 102 of same row Gap is only 1mm, and so small gap can play the beneficial effect of refrigerant water surface tension so that the surface condensation of heat exchanger tube 102 Chilled water collect and lower drop in gap location.The surface that the chilled water for first condensing will not drop onto lower floor's heat exchanger tube 102 forms water Film, is minimized the water film thickness for being suspended on the bottom cambered surface of heat exchanger tube 102, so as to improve the overall work of condenser 100 Efficiency.So so that condenser 100 is minimized.
Reference picture 3, during Fig. 3 is the utility model embodiment, the Structure explosion diagram of condenser 100 and side regenerator 200. Between adjacent two rows heat exchanger tube 102, spaced set has multiple support bars 103, and support bar 103 intersects with heat exchanger tube 102 and sets Put and be mutually perpendicular to heat exchanger tube 102.Support bar 103 is used to support two neighbouring row's heat exchanger tubes 102, and bears shell-and-tube The structural stress that high vacuum is brought in heat exchanger shell 101.In the present embodiment, support bar 103 is made of plastics, light to ensure Quantify.Used as a kind of embodiment, support bar 103 is made with heat exchanger tube 102 of otherwise identical plastic, in order to manufacture.
It should be noted that in other specific embodiments, the pipe thickness of heat exchanger tube 102 can 0.1mm~ It is adjusted between 0.5mm；The external diameter of heat exchanger tube 102 can be adjusted between 3mm~5mm；Positioned at the adjacent of same row The centre-to-centre spacing of heat exchanger tube 102 can be adjusted between 4mm~6mm；The centre-to-centre spacing of neighbouring heat exchanger tube 102 can be with It is adjusted between 5mm~8mm.
Regenerator 200 is illustrated below.
Referring again to Fig. 2, regenerator 200 includes shell-and-tube heat exchanger housing 201, heat exchanger tube 202 and solution dispenser 203.In the present embodiment, some row's heat exchanger tubes 202 (illustrate only part heat exchanger tube 202 in levels arrangement in figure.Can manage Solution, in other specific embodiments, heat exchanger tube 202 can use other arrangement modes.), heat exchanger tube 202 is fixed on shell In formula heat exchanger shell 201, so as to constitute shell-and-tube heat exchanger 210.Operationally, circulation has hot water in heat exchanger tube 202, exchanges heat It is used between pipe 202 and the shell-and-tube heat exchanger housing 201 for the flowing of lithium bromide weak solution.Hot water in heat exchanger tube 202 is used Heated in lithium bromide weak solution, constantly vaporization becomes refrigerant steam to make the chilled water absorbed in weak solution.Solution is distributed Device 203 is cuboid, and inside has cavity, and cavity is used for for the flowing of lithium bromide weak solution.The bottom of solution dispenser 203 is molten Liquid spraying area 204.Solution dispenser 203 is arranged on the top of shell-and-tube heat exchanger 210, and spray solution face 204 is changed with shell-and-tube The size of the upper surface of hot device 210 is identical.Referring again to Fig. 3, multiple discharge orifices 205 are evenly arranged with spray solution face 204.Make It is a kind of embodiment, discharge orifice 205 is strip hole, extends on the width in spray solution face 204 and equidistantly open up three Individual shape is in a row.On the length direction in spray solution face 204, the multiple rows of discharge orifice 205 of spaced set.Discharge orifice 205 is used for Lithium bromide weak solution in cavity is uniformly sprayed to the heat exchanger tube 202 of lower section.
Referring again to Fig. 2, the shell-and-tube heat exchanger housing 201 of regenerator 200 and the shell-and-tube heat exchanger shell of condenser 100 Body 101 is integral type structure, and the heat exchanger tube 202 of regenerator 200 is with the heat exchanger tube 102 of condenser 100 by ramp type liquid islocation plate 501 Separate.
In regenerator 200, heat exchanger tube 202 is made of plastics, and the pipe thickness of heat exchanger tube 202 is 0.1mm~0.5mm. In the present embodiment, the pipe thickness of heat exchanger tube 202 is 0.15mm.Relative to metallic heat exchanging tube, so very thin thickness is in consubstantiality More than ten times of heat exchange area is increased under product, the not enough problem of plastics heat transfer property is compensate for so that the heat transfer of heat exchanger tube 202 Performance can reach the requirement of Absorption Refrigerator.Because heat exchanger tube 202 is made of plastics, relative to use heat dissipation metal pipe, The weight of regenerator 200 can be greatly lowered, it is achieved thereby that lightweight.Because plastics possess excellent corrosion resistance, So as to can also avoid producing on-condensible gas because regenerator 200 is corroded, the operating efficiency of Absorption Refrigerator is increased. Relative to metallic heat exchanging tube, its sealing is more prone to the heat exchanger tube 202 of plastic production.
Inventor has found by research, the condenser of traditional use metallic heat exchanging tube, due to metal sealing difficulty compared with Greatly, in order to ensure the sealing property of condenser so that its housing can only be made of steel plate or casting, so as to further increase The weight of condenser, and corrosion-resistant are added.
Therefore, in the present embodiment, the shell-and-tube heat exchanger housing 201 of regenerator 200 is also adopted by plastics and is made so that pipe Sealing between shell heat exchanger housing 201 and heat exchanger tube 202 can realize readily, the thickness of shell-and-tube heat exchanger housing 201 Degree can be reduced.So, the weight of regenerator 200 is further mitigated, the corrosion resistance of regenerator 200 is also strengthened. Used as a kind of embodiment, shell-and-tube heat exchanger housing 201 and heat exchanger tube 202 can be made of the plastics of identical type, be passed through Shooting Technique is integrally formed, so as to provide excellent sealing property.
In the present embodiment, solution dispenser 203 can also adopt made of plastic, to reach further lightweight.Make It is a kind of embodiment, solution dispenser 203 and shell-and-tube heat exchanger housing 201 can be made of the plastics of identical type, with Convenient manufacture, assembling and sealing.
Lightweight except realizing regenerator 200, inventor also wants to realize the miniaturization of regenerator 200.Miniaturization Regenerator 200 can make Absorption Refrigerator overall volume smaller such that it is able to suitable for family or other to refrigeration work consumption will Seek commercial situations not high.However, inventor has found during regenerator 200 is minimized, with the reduction of refrigeration work consumption, The internal circulating load of required working medium is also decreased, and the outer surface of heat exchanger tube 202 correspondingly occur, can not to be brominated lithium solution abundant Moisten and the unfavorable phenomenon of " dry spot " occur.In order to avoid there is dry spot, inventor attempts increasing the flow of circulating pump, much More than the worker quality liquid of the internal circulating load of actual requirement, constantly changing to top is sprayed from the hydrops pond of the bottom of regenerator 200 On heat pipe 202.But the flow of circulating pump is which increased, increased parasitic energy consumption and operating cost.It is contrary in absorption The trend that refrigeration machine develops to miniaturization, family oriented.
Therefore, the centre-to-centre spacing between the external diameter and adjacent heat exchange tubes 202 of inventor's exchange heat pipe 202 is optimized. The external diameter of heat exchanger tube 202 is set to 3mm~5mm, the centre-to-centre spacing for being located at the adjacent heat exchanger tube 202 of same row is set to 4mm~6mm, 5mm~8mm is set to by the centre-to-centre spacing of neighbouring heat exchanger tube 202.In the present embodiment, heat exchanger tube 202 External diameter is 3mm；It is 4mm positioned at the centre-to-centre spacing of the adjacent heat exchanger tube 102 of same row；The center of neighbouring heat exchanger tube 202 Away from being 7mm.Using above-mentioned pipe with small pipe diameter, the heat exchanger tube 202 of big density array, larger heat-exchange surface is obtained in unit volume Product, so as to realize smaller volume on the premise of heat exchange efficiency high is met.Between between the adjacent heat exchanger tube 202 of same row Gap is only 1mm, in the gap location, the surface tension of lithium-bromide solution and gravity synergy so that lithium-bromide solution is at this Existing lower drip is moved at gap, is also had diffusion and is piled up such that it is able to ensures that chilled water submerges heat exchanger tube 202 all the time.Lithium bromide is molten Liquid carries out immersion with heat exchanger tube 202 and falling film type combines heat exchange.Meanwhile, in the presence of lithium-bromide solution surface tension, bromine Changing lithium solution need not be full of whole shell-and-tube heat exchanger housing 201, it is thus only necessary to which lithium-bromide solution can eventually submerge heat exchange all the time Pipe 202.Therefore, it is possible to the size adjustment lithium-bromide solution according to lithium-bromide solution flow gap location deposition highly, make , lithium-bromide solution flow small in cooling load hour is obtained, lithium-bromide solution also can uniformly submerge heat exchanger tube 202.In this way, need not Repeatedly pumping can ensure lithium-bromide solution contact with heat exchanger tube 202, effectively prevent dry spot phenomenon, reduce parasitic energy Consumption and operating cost so that regenerator 200 is minimized.
Referring again to Fig. 3, between adjacent two rows heat exchanger tube 202, spaced set has multiple support bars 206, support bar 206 is arranged in a crossed manner with heat exchanger tube 202 and be mutually perpendicular to heat exchanger tube 202.Support bar 206 is used to support two neighbouring rows to change Heat pipe 202, and bear the structural stress that high vacuum is brought in shell-and-tube heat exchanger housing 201.In the present embodiment, support bar 206 are made of plastics, to ensure lightweight.Used as a kind of embodiment, support bar 206 uses otherwise identical plastic system with heat exchanger tube 202 Into in order to manufacture.
It should be noted that in other specific embodiments, the pipe thickness of heat exchanger tube 202 can 0.1mm~ It is adjusted between 0.5mm；The external diameter of heat exchanger tube 202 can be adjusted between 3mm~5mm；Positioned at the adjacent of same row The centre-to-centre spacing of heat exchanger tube 202 can be adjusted between 4mm~6mm；The centre-to-centre spacing of neighbouring heat exchanger tube 202 can be with It is adjusted between 5mm~8mm.
Evaporator 300 and absorber 400
Reference picture 4, during Fig. 4 is the utility model embodiment, the assembly state diagram of evaporator 300 and side absorber 400. In fig. 4, right side be evaporator 300, left side be absorber 400, between evaporator 300 and absorber 400 for ramp type every Liquid plate 502.Ramp type liquid islocation plate 502 is considered as a part for evaporator 300, it is also possible to regard a part for absorber 400 as. Chilled water required for the evaporator 300 on right side is supplied by the throttle orifice 104 of the condenser bottom being disposed there above.Right side The effect of evaporator 300 is to make to come the chilled water of condenser largely to absorb the heat of the cold water of flowing in the tube side of evaporator 300 And vaporize, so as to reach to the purpose of cold water cooling refrigeration.The refrigerant steam of generation enters left side absorber 400.Absorber 400 Required concentrated solution is supplied by the supply hole 207 of the regenerator bottoms being disposed there above.Absorber 400 is dense to lithium bromide molten Liquid is cooled down, and lithium bromide concentrated solution is constantly absorbed refrigerant steam so as to become lithium bromide weak solution.The lithium bromide for obtaining is dilute Solution is used to loop back regenerator, so as to complete kind of refrigeration cycle.Ramp type liquid islocation plate 502 is used to retain what is carried secretly in refrigerant steam Drop, only allows refrigerant steam to cross ramp type liquid islocation plate 502 and enters absorber 400.
Evaporator 300 is illustrated below.
Reference picture 5, during Fig. 5 is the utility model embodiment, the structure sectional view of evaporator 300 and side absorber 400.
Evaporator 300 is shell-and-tube heat exchanger, including shell-and-tube heat exchanger housing 301 and heat exchanger tube 302.In the present embodiment In, some row's heat exchanger tubes 302 (illustrate only part heat exchanger tube 302 in levels arrangement in figure.It should be understood that in other tools In body implementation method, heat exchanger tube 302 can use other arrangement modes.), heat exchanger tube 302 is fixed on shell-and-tube heat exchanger housing In 301.Operationally, circulation has cold water in heat exchanger tube 302, and the chilled water for carrying out condenser is changed in heat exchanger tube 102 and shell-and-tube Flowed between hot device housing 101.The heat of cold water in a large amount of absorption heat-exchange pipes 302 of chilled water and vaporize, obtain refrigerant steam, from And reach to the purpose of cold water cooling refrigeration.
In evaporator 300, heat exchanger tube 302 is made of plastics, and the pipe thickness of heat exchanger tube 302 is 0.1mm~0.5mm. In the present embodiment, the pipe thickness of heat exchanger tube 302 is 0.15mm.Relative to metallic heat exchanging tube, so very thin thickness is in consubstantiality More than ten times of heat exchange area is increased under product, the not enough problem of plastics heat transfer property is compensate for so that the heat transfer of heat exchanger tube 302 Performance can reach the requirement of Absorption Refrigerator.Because heat exchanger tube 302 is made of plastics, relative to use heat dissipation metal pipe, The weight of evaporator 300 can be greatly lowered, it is achieved thereby that lightweight.Because plastics possess excellent corrosion resistance, So as to can also avoid producing on-condensible gas because heat exchanger tube 302 is corroded, the operating efficiency of Absorption Refrigerator is increased. Relative to metallic heat exchanging tube, its sealing is more prone to the heat exchanger tube 302 of plastic production.
Limited by the physicochemical properties of pure water, for the various refrigeration applications for meeting human body comfort needs, steamed The evaporating temperature for sending out device 300 is generally arranged at 5 DEG C or so, and this requires the full of the shell-and-tube heat exchanger housing 301 of evaporator 300 872Pa or so is preferably must be held in pressure.This pressure is very high to air-tightness requirement, and inventor has found by research, traditional Using the evaporator of metallic heat exchanging tube, because the sealing difficulty of metal is larger, in order to ensure the sealing property of evaporator so that its Housing can only be made of steel plate or casting, so as to further increase the weight of evaporator, and corrosion-resistant.
Therefore, in the present embodiment, the shell-and-tube heat exchanger housing 301 of evaporator 300 is also adopted by plastics and is made so that pipe Sealing between shell heat exchanger housing 301 and heat exchanger tube 302 can realize readily, the thickness of shell-and-tube heat exchanger housing 301 Degree can be reduced.So, the weight of evaporator 300 is further mitigated, the corrosion resistance of evaporator 300 is also strengthened. Used as a kind of embodiment, shell-and-tube heat exchanger housing 301 and heat exchanger tube 302 can be made of the plastics of identical type, be passed through Shooting Technique is integrally formed, so as to provide excellent sealing property.
Lightweight except realizing evaporator 300, inventor also wants to realize the miniaturization of evaporator 300.Miniaturization Evaporator 300 can make Absorption Refrigerator overall volume smaller such that it is able to suitable for family or other to refrigeration work consumption will Seek commercial situations not high.However, inventor has found during condenser 100 is minimized, due to the specific heat capacity of chilled water Very big, the flow for completing the chilled water of evaporation required for rated cooling capacity is just fewer, it is necessary to set the coolant distributor of complexity Accurately it is assigned on each heat exchanger tube 302 with chilled water, chilled water is fully infiltrated heat exchanger tube 302 and along the table of heat exchanger tube 302 Face forms the moisture film (abbreviation falling liquid film) that thickness uniformly declines.With the evaporation of chilled water, chilled water is constantly reduced, so that it cannot It is sufficiently humidified so as to heat exchanger tube 302 and causes the appearance of heat exchanger tube 302 phenomenon of " dry spot " occur.The appearance of dry spot, makes evaporator 300 The coefficient of heat transfer is substantially reduced.Thus, in order to ensure to be sufficiently humidified so as to, it is necessary to configure special refrigerant pump, using far more than reality The chilled water of evaporation capacity, refrigerant pump pumping under, constantly from the bottom of evaporator 300 without evaporate refrigerant Water spray to The top of evaporator 300.The presence of refrigerant pump, on the one hand increases the volume weight of refrigeration machine, is difficult to evaporator 300 small-sized Change, on the other hand increase operating cost.
Therefore, the centre-to-centre spacing between the external diameter and adjacent heat exchange tubes 302 of inventor's exchange heat pipe 302 is optimized. The external diameter of heat exchanger tube 302 is set to 3mm~5mm, the centre-to-centre spacing for being located at the adjacent heat exchanger tube 302 of same row is set to 4mm~6mm, 5mm~8mm is set to by the centre-to-centre spacing of neighbouring heat exchanger tube 302.In the present embodiment, heat exchanger tube 302 External diameter is 3mm；It is 4mm positioned at the centre-to-centre spacing of the adjacent heat exchanger tube 302 of same row；The center of neighbouring heat exchanger tube 302 Away from being 7mm.Using above-mentioned pipe with small pipe diameter, the heat exchanger tube 302 of big density array, larger heat-exchange surface is obtained in unit volume Product, so as to realize smaller volume on the premise of heat exchange efficiency high is met.The external diameter of heat exchanger tube 302 only has 3mm, same row's Gap between adjacent heat exchanger tube 302 is only 1mm, and so small gap can play the beneficial work of refrigerant water surface tension With.Under the synergy of refrigerant water surface tension and gravity, a chilled water part is formed in gap location piles up, spreads and soak Row's heat exchanger tube 302, another part is dropped onto on the heat exchanger tube 302 of lower floor by gap.Then, heat exchanger tube 302 each Gap location, a chilled water part drops onto lower floor by gap, and another part is piled up and spreads and soak the heat exchanger tube 302.With this Analogize, chilled water flows successively through each layer heat exchanger tube 302.Chilled water flows through a layer heat exchanger tube 302 from throttle orifice 104, all relies on Action of Gravity Field is completed.Under specified cooling condition during steady operation, the chilled water from the supply of throttle orifice 104 is through most going up row's heat exchanger tube 302, when row's heat exchanger tube 302 is most descended in arrival, it is vaporized completely just, refrigerant pump needn't be used.When chilled water flows through gap, in table Under the double action of face tension force and gravity, in the existing flowing of gap location, there is accumulation again；Gap can be according to the size of refrigerant water-carrying capacity Automatically adjust piling height of the chilled water in gap location.When refrigerant water-carrying capacity is big, the liquid height that gap location is piled up can flood Heat exchanger tube 302, while the flow for flowing through gap is also big.When refrigerant water-carrying capacity is smaller, the liquid height that gap location is piled up is low, but Due to the wettability on the surface of heat exchanger tube 302, cooling medium liquid knows from experience infiltration heat exchanger tube 302, reduces the surface of heat exchanger tube 302 and occurs " doing The chance of spot ", improves heat transfer coefficient.In this way, special refrigerant pump and coolant distributor need not be set, operating cost is reduced, It is also beneficial to the miniaturization of evaporator 300.
Reference picture 6, during Fig. 6 is the utility model embodiment, the Structure explosion diagram of evaporator 300 and side absorber 400. Between adjacent two rows heat exchanger tube 302, spaced set has multiple support bars 303, and support bar 303 intersects with heat exchanger tube 302 and sets Put and be mutually perpendicular to heat exchanger tube 302.Support bar 303 is used to support two neighbouring row's heat exchanger tubes 302, and bears shell-and-tube The structural stress that high vacuum is brought in heat exchanger shell 301.In the present embodiment, support bar 303 is made of plastics, light to ensure Quantify.Used as a kind of embodiment, support bar 303 is made with heat exchanger tube 302 of otherwise identical plastic, in order to manufacture.
It should be noted that in other specific embodiments, the pipe thickness of heat exchanger tube 302 can 0.1mm~ It is adjusted between 0.5mm；The external diameter of heat exchanger tube 302 can be adjusted between 3mm~5mm；Positioned at the adjacent of same row The centre-to-centre spacing of heat exchanger tube 302 can be adjusted between 4mm~6mm；The centre-to-centre spacing of neighbouring heat exchanger tube 302 can be with It is adjusted between 5mm~8mm.
Absorber 400 is illustrated below.
Referring again to Fig. 5, absorber 400 includes shell-and-tube heat exchanger housing 401, heat exchanger tube 402 and solution dispenser 403.In the present embodiment, some row's heat exchanger tubes 402 (illustrate only part heat exchanger tube 402 in levels arrangement in figure.Can manage Solution, in other specific embodiments, heat exchanger tube 402 can use other arrangement modes.), heat exchanger tube 402 is fixed on shell In formula heat exchanger shell 401, so as to constitute shell-and-tube heat exchanger 410.Operationally, circulation has cold in heat exchanger tube 402, heat exchanger tube It is used between 402 and the shell-and-tube heat exchanger housing 401 for the flowing of lithium bromide concentrated solution.Cold water in heat exchanger tube 402 is used for Lithium bromide concentrated solution is cooled down, lithium bromide concentrated solution is constantly absorbed refrigerant steam.Solution dispenser 403 is cuboid, Inside has cavity, and cavity is used for for the flowing of lithium bromide concentrated solution.The bottom of solution dispenser 403 is spray solution face 404.It is molten Liquid distributor 403 is arranged on the top of shell-and-tube heat exchanger 410, spray solution face 404 and the upper surface of shell-and-tube heat exchanger 410 Size is identical.Referring again to Fig. 6, multiple discharge orifices 405 are evenly arranged with spray solution face 404.As a kind of embodiment, let out Discharge orifice 405 is strip hole, extends on the width in spray solution face 404 and equidistantly to open up three shapes in a row.Molten On the length direction of liquid spraying area 404, the multiple rows of discharge orifice 405 of spaced set.Discharge orifice 405 is used for the lithium bromide in cavity Weak solution is uniformly sprayed to the heat exchanger tube 402 of lower section.
Referring again to Fig. 5, the shell-and-tube heat exchanger housing 401 of absorber 400 and the shell-and-tube heat exchanger shell of evaporator 300 Body 301 is integral type structure, and the heat exchanger tube 402 of absorber 400 is with the heat exchanger tube 302 of evaporator 300 by ramp type liquid islocation plate 502 Separate.
In absorber 400, heat exchanger tube 402 is made of plastics, and the pipe thickness of heat exchanger tube 402 is 0.1mm~0.5mm. In the present embodiment, the pipe thickness of heat exchanger tube 402 is 0.15mm.Relative to metallic heat exchanging tube, so very thin thickness is in consubstantiality More than ten times of heat exchange area is increased under product, the not enough problem of plastics heat transfer property is compensate for so that the heat transfer of heat exchanger tube 402 Performance can reach the requirement of Absorption Refrigerator.Because heat exchanger tube 402 is made of plastics, relative to use heat dissipation metal pipe, The weight of absorber 400 can be greatly lowered, it is achieved thereby that lightweight.Because plastics possess excellent corrosion resistance, So as to can also avoid producing on-condensible gas because absorber 400 is corroded, the operating efficiency of Absorption Refrigerator is increased. Relative to metallic heat exchanging tube, its sealing is more prone to the heat exchanger tube 302 of plastic production.
Inventor has found by research, the absorber of traditional use metallic heat exchanging tube, due to metal sealing difficulty compared with Greatly, in order to ensure the sealing property of absorber so that its housing can only be made of steel plate or casting, so as to further increase The weight of absorber, and corrosion-resistant are added.
Therefore, in the present embodiment, the shell-and-tube heat exchanger housing 401 of absorber 400 is also adopted by plastics and is made so that pipe Sealing between shell heat exchanger housing 401 and heat exchanger tube 402 can realize readily, the thickness of shell-and-tube heat exchanger housing 401 Degree can be reduced.So, the weight of absorber 400 is further mitigated, the corrosion resistance of absorber 400 is also strengthened. Used as a kind of embodiment, shell-and-tube heat exchanger housing 401 and heat exchanger tube 402 can be made of the plastics of identical type, be passed through Shooting Technique is integrally formed, so as to provide excellent sealing property.
In the present embodiment, solution dispenser 403 can also adopt made of plastic, to reach further lightweight.Make It is a kind of embodiment, solution dispenser 403 and shell-and-tube heat exchanger housing 401 can be made of the plastics of identical type, with Convenient manufacture, assembling and sealing.
Lightweight except realizing absorber 400, inventor also wants to realize the miniaturization of absorber 400.Miniaturization Absorber 400 can make Absorption Refrigerator overall volume smaller such that it is able to suitable for family or other to refrigeration work consumption will Seek occasion not high.However, inventor has found during absorber 400 is minimized, it is required with the reduction of refrigeration work consumption The internal circulating load of the working medium wanted also is decreased, and the outer surface of heat exchanger tube 402 correspondingly occurs and can not be brominated lithium solution being sufficiently humidified so as to And there is the unfavorable phenomenon of " dry spot ".In order to avoid there is dry spot, inventor attempts increasing the flow of circulating pump, far more than The worker quality liquid of the internal circulating load of actual requirement, constantly sprays the heat exchanger tube to top from the hydrops pond of the bottom of absorber 400 On 402.But the flow of circulating pump is which increased, increased parasitic energy consumption and operating cost.It is contrary in absorption refrigeration The trend that machine develops to miniaturization, family oriented.
Therefore, the centre-to-centre spacing between the external diameter and adjacent heat exchange tubes 402 of inventor's exchange heat pipe 402 is optimized. The external diameter of heat exchanger tube 402 is set to 3mm~5mm, the centre-to-centre spacing for being located at the adjacent heat exchanger tube 402 of same row is set to 4mm~6mm, 5mm~8mm is set to by the centre-to-centre spacing of neighbouring heat exchanger tube 402.In the present embodiment, heat exchanger tube 402 External diameter is 3mm；It is 4mm positioned at the centre-to-centre spacing of the adjacent heat exchanger tube 402 of same row；The center of neighbouring heat exchanger tube 402 Away from being 7mm.Using above-mentioned pipe with small pipe diameter, the heat exchanger tube 402 of big density array, larger heat-exchange surface is obtained in unit volume Product, so as to realize smaller volume on the premise of heat exchange efficiency high is met.Between between the adjacent heat exchanger tube 402 of same row Gap is only 1mm, in the gap location, the surface tension of lithium-bromide solution and gravity synergy so that lithium-bromide solution is at this Existing lower drip is moved at gap, is also had diffusion and is piled up such that it is able to ensures that chilled water submerges heat exchanger tube 402 all the time.Lithium bromide is molten Liquid carries out immersion with heat exchanger tube 402 and falling film type combines heat exchange.Meanwhile, in the presence of lithium-bromide solution surface tension, bromine Changing lithium solution need not be full of whole shell-and-tube heat exchanger housing 401, it is thus only necessary to which lithium-bromide solution can eventually submerge heat exchange all the time Pipe 402.Therefore, it is possible to the size adjustment lithium-bromide solution according to lithium-bromide solution flow gap location deposition highly, make , lithium-bromide solution flow small in cooling load hour is obtained, lithium-bromide solution also can uniformly submerge heat exchanger tube 402.In this way, need not Repeatedly pumping can ensure lithium-bromide solution contact with heat exchanger tube 402, effectively prevent dry spot phenomenon, reduce parasitic energy Consumption and operating cost so that absorber 400 is minimized.
Referring again to Fig. 3, between adjacent two rows heat exchanger tube 402, spaced set has multiple support bars 406, support bar 406 is arranged in a crossed manner with heat exchanger tube 402 and be mutually perpendicular to heat exchanger tube 402.Support bar 406 is used to support two neighbouring rows to change Heat pipe 402, and bear the structural stress that high vacuum is brought in shell-and-tube heat exchanger housing 401.In the present embodiment, support bar 406 are made of plastics, to ensure lightweight.Used as a kind of embodiment, support bar 406 uses otherwise identical plastic system with heat exchanger tube 402 Into in order to manufacture.
It should be noted that in other specific embodiments, the pipe thickness of heat exchanger tube 402 can 0.1mm~ It is adjusted between 0.5mm；The external diameter of heat exchanger tube 402 can be adjusted between 3mm~5mm；Positioned at the adjacent of same row The centre-to-centre spacing of heat exchanger tube 402 can be adjusted between 4mm~6mm；The centre-to-centre spacing of neighbouring heat exchanger tube 402 can be with It is adjusted between 5mm~8mm.
Solution heat exchanger 600
Fig. 7 is the dimensional structure diagram of solution heat exchanger 600 in the utility model embodiment.
Solution heat exchanger 600 is plate type heat exchanger, and it is used to carry out heat to lithium bromide concentrated solution and lithium bromide weak solution Exchange.
Fig. 8 is that solution heat exchanger 600 has removed exposed heat exchange wallboard after section components in the utility model embodiment 620 structural representation.
In solution heat exchanger 600, polylith exchanges heat wallboard 620 in multilayer arrangement, wherein inside plate type heat exchanger housing 624 It is evenly spaced with polylith heat exchange wallboard 620, form the passage of cold and hot solution circulation：The He of weak solution passage 612 i.e. spaced apart from each other Concentrated solution passage 614.The lithium bromide weak solution of low temperature and the lithium bromide concentrated solution of high temperature are contacted with heat exchange wallboard 620 simultaneously, are changed Hot wall plate 620 becomes the medium of the lithium bromide concentrated solution heat exchange of the lithium bromide weak solution and high temperature of low temperature.Solution heat exchange The gateway of solution channel is further respectively had on four angles of device 600, is respectively：The concentrated solution entrance 406, lower left corner in the upper left corner The concentrated solution outlet 402, weak solution of the weak solution entrance 401, upper left corner in lower right corner outlet 408.
It can also be seen that solution pump 631, concentrated solution goes to the passage 604 and weak solution of the shell side of absorber 400 to go in Fig. 8 The passage 609 of regenerator 200.Solution pump 631 is used to provide power to the weak solution of flowing in solution heat exchanger 600, by it The weak solution outlet 608 in the upper left corner is pumped into from the weak solution entrance 601 in the lower right corner, and regenerator is transported to by connecting tube (it is not drawn on figure) in 200 solution dispenser.
As shown in figure 8, being stamped and formed out dense distribution, the raised line of weavy grain shape alternate in length and breadth on heat exchange wallboard 620 surface 622, the raised line 622 of this weavy grain shape is used to support the pressure produced by the vacuum suffered by heat exchange wallboard 620, while making to flow through The fluid of raised line 622 produces turbulent flow, to improve heat transfer coefficient.
In solution heat exchanger 600, heat exchange wallboard 620 be made of plastics, exchange heat wallboard 620 thickness for 0.1mm~ 0.5mm.In the present embodiment, the thickness of heat exchange wallboard 620 is 0.15mm.Relative to metal heat-exchange wallboard, so very thin thickness Degree compensate for the not enough problem of plastics heat transfer property so that the heat transfer property of heat exchange wallboard 620 can reach Absorption Refrigerator Requirement.Because heat exchange wallboard 620 is made of plastics, relative to using metal heat-exchange wallboard, the weight of solution heat exchanger 600 Can be greatly lowered, it is achieved thereby that lightweight.Because plastics possess excellent corrosion resistance, thus can also avoid by It is corroded in heat exchange wallboard 620 and produces on-condensible gas, increased the operating efficiency of Absorption Refrigerator.Meanwhile, plastic production Heat exchange wallboard 620 relative to metal heat-exchange wallboard, its sealing is more prone to.
Inventor has found by research, the solution heat exchanger of traditional use metal heat-exchange wallboard, close due to metal Envelope difficulty is larger, in order to ensure the sealing property of solution heat exchanger so that its housing can only use steel plate or casting system Into so as to further increase the weight of solution heat exchanger, and corrosion-resistant.
Therefore, in the present embodiment, the plate type heat exchanger housing 624 of solution heat exchanger 600 is also adopted by plastics and is made, and makes Obtain tube-sheet heat exchanger housing 624 and the sealing between the wallboard 620 that exchanges heat can be realized readily, plate type heat exchanger housing 624 Thickness can reduce.So, further mitigate the weight of solution heat exchanger 600, solution heat exchanger 600 it is anticorrosive Performance is also strengthened.Used as a kind of embodiment, plate type heat exchanger housing 624 and heat exchange wallboard 620 can use identical type Plastics be made, be integrally formed by Shooting Technique, so as to provide excellent sealing property.
In the present embodiment, raised line 622 is made of plastics, to ensure lightweight.As a kind of embodiment, raised line 622 with Heat exchange wallboard 620 is made of otherwise identical plastic, in order to manufacture.
The wooden partition spacing of the heat exchange wallboard 620 of adjacent two layers is 0.5mm~3mm, and adjacent two layers are changed in the present embodiment The wooden partition spacing of hot wall plate 620 is 1mm.Simultaneously because the thickness of heat exchange wallboard 620 is 0.15mm, so that solution heat exchange The structure of device 600 is compacter, and bigger heat exchange area is provided in unit volume, is conducive to solution heat exchanger 600 Miniaturization.
Condenser 100, regenerator 200, evaporator 300, absorber 400 and solution heat exchanger described in the present embodiment 600 as absorption refrigeration unit a part, for constituting absorption refrigeration unit.Several absorption refrigeration units may be used also To constitute absorption refrigeration matrix.
Section Example of the present utility model is the foregoing is only, the utility model is not limited to, for this For art personnel, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle it Interior, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims (31)

1. absorption refrigeration unit internal heat component, it is characterised in that：
The absorption refrigeration unit internal heat component is regenerator, absorber, condenser, evaporator or solution heat exchanger In any one；
It is any one in the absorption refrigeration unit internal heat component is regenerator, absorber, condenser or evaporator When planting, the absorption refrigeration unit internal heat component includes shell-and-tube heat exchanger；The shell-and-tube heat exchanger possesses shell Formula heat exchanger shell and heat exchanger tube；The heat exchanger tube is arranged in the shell-and-tube heat exchanger housing；The heat exchanger tube is by plastics It is made；
When the absorption refrigeration unit internal heat component is solution heat exchanger, changed inside the absorption refrigeration unit Hot component includes plate type heat exchanger；The plate type heat exchanger possesses plate type heat exchanger housing and heat exchange wallboard；The heat exchange wallboard It is arranged in the plate type heat exchanger housing；The heat exchange wallboard is made of plastics.
2. absorption refrigeration unit internal heat component according to claim 1, it is characterised in that：
The pipe thickness of the heat exchanger tube is 0.1~0.5mm.
3. absorption refrigeration unit internal heat component according to claim 2, it is characterised in that：
The pipe thickness of the heat exchanger tube is 0.15mm.
4. absorption refrigeration unit internal heat component according to claim 1, it is characterised in that：
Heat exchanger tube described in some rows is arranged in levels；Multiple support bars are arranged at intervals between heat exchanger tube described in adjacent two row； The support bar is used to support heat exchanger tube described in adjacent two row.
5. absorption refrigeration unit internal heat component according to claim 4, it is characterised in that：
The support bar is made of plastics.
6. absorption refrigeration unit internal heat component according to claim 5, it is characterised in that：
The support bar and the heat exchanger tube are made up of otherwise identical plastic.
7. absorption refrigeration unit internal heat component according to claim 1, it is characterised in that：
The external diameter of the heat exchanger tube is 3mm~5mm；
It is 4mm~6mm positioned at the centre-to-centre spacing of the adjacent heat exchanger tube of same row；
The centre-to-centre spacing of the neighbouring heat exchanger tube is 5mm~8mm.
8. absorption refrigeration unit internal heat component according to claim 7, it is characterised in that：
The external diameter of the heat exchanger tube is 3mm；
It is 4mm positioned at the centre-to-centre spacing of the adjacent heat exchanger tube of same row；
The centre-to-centre spacing of the neighbouring heat exchanger tube is 7mm.
9. absorption refrigeration unit internal heat component according to claim 1, it is characterised in that：
It is any one in the absorption refrigeration unit internal heat component is regenerator, absorber, condenser or evaporator When planting, the shell-and-tube heat exchanger housing is made of plastics.
10. absorption refrigeration unit internal heat component according to claim 9, it is characterised in that：
The shell-and-tube heat exchanger housing and the heat exchanger tube are made up of otherwise identical plastic.
The 11. absorption refrigeration unit internal heat component according to any one in claim 1~10, its feature exists In：
The thickness of the heat exchange wallboard is 0.1mm~0.5mm.
12. absorption refrigeration unit internal heat components according to claim 11, it is characterised in that：
The thickness of the heat exchange wallboard is 0.15mm.
The 13. absorption refrigeration unit internal heat component according to any one in claim 1~10, its feature exists In：
Textured shape raised line is distributed on the heat exchange wallboard, for supporting the heat exchange wallboard, and makes to flow through the stream of the raised line Body produces turbulent flow to improve heat transfer coefficient.
14. absorption refrigeration unit internal heat components according to claim 13, it is characterised in that：
The raised line is made of plastics.
15. absorption refrigeration unit internal heat components according to claim 14, it is characterised in that：
The raised line and the heat exchange wallboard are made up of otherwise identical plastic.
The 16. absorption refrigeration unit internal heat component according to any one in claim 1~10, its feature exists In：
The heat exchange wallboard is arranged in multilayer；
The wooden partition spacing of the heat exchange wallboard of adjacent two layers is 0.5mm~3mm.
17. absorption refrigeration unit internal heat components according to claim 16, it is characterised in that：
The wooden partition spacing of the heat exchange wallboard of adjacent two layers is 1mm.
The 18. absorption refrigeration unit internal heat component according to any one in claim 1~10, its feature exists In：
When the absorption refrigeration unit internal heat component is solution heat exchanger, the plate type heat exchanger housing is by plastics It is made.
19. absorption refrigeration unit internal heat components according to claim 18, it is characterised in that：
The plate type heat exchanger housing and the heat exchange wallboard are made up of otherwise identical plastic.
The 20. absorption refrigeration unit internal heat component according to any one in claim 1~10, its feature exists In：
The absorption refrigeration unit internal heat component is evaporator；The heat exchanger tube inside is described for supplying cold water flow Flowed for cooling matchmaker water between heat exchanger tube and the shell-and-tube heat exchanger housing.
21. absorption refrigeration unit internal heat components according to claim 20, it is characterised in that：
Heat exchanger tube described in each row is provided with ramp type liquid islocation plate towards the side of absorber, and the ramp type liquid islocation plate is used to cut Chilled water is stayed, only allows refrigerant steam to pass through.
The 22. absorption refrigeration unit internal heat component according to any one in claim 1~10, its feature exists In：
The absorption refrigeration unit internal heat component is condenser；The heat exchanger tube inside is for Cooling Water flowing, institute State and flowed for cooling matchmaker steam between heat exchanger tube and shell-and-tube heat exchanger housing.
23. absorption refrigeration unit internal heat components according to claim 22, it is characterised in that：
Heat exchanger tube described in each row is provided with ramp type liquid islocation plate towards the side of regenerator, and the ramp type liquid islocation plate is used to cut The drop in refrigerant steam is stayed, only allows refrigerant steam to pass through.
The 24. absorption refrigeration unit internal heat component according to any one in claim 1~10, its feature exists In：
The absorption refrigeration unit internal heat component is absorber or regenerator, the heat exchanger shell and the heat exchanger tube Collectively form shell-and-tube heat exchanger；
It is used between the heat exchanger tube and shell-and-tube heat exchanger housing for lithium-bromide solution flowing；
When the absorption refrigeration unit internal heat component is absorber, the heat exchanger tube inside is used for Cooling Water stream It is dynamic；When the absorption refrigeration unit internal heat component is regenerator, the heat exchanger tube inside is for supplying hot water flowing.
25. absorption refrigeration unit internal heat components according to claim 24, it is characterised in that：
The absorption refrigeration unit internal heat component also includes solution dispenser；The solution dispenser is arranged on the pipe Shell heat exchanger top；Solution dispenser inside has a cavity, and the solution dispenser bottom is for changing downwards The spray solution face of heat pipe spray solution.
26. absorption refrigeration unit internal heat components according to claim 25, it is characterised in that：
The solution dispenser is made of plastics.
27. absorption refrigeration unit internal heat components according to claim 26, it is characterised in that：
The solution dispenser and shell-and-tube heat exchanger housing are made up of otherwise identical plastic.
28. absorption refrigeration unit internal heat components according to claim 24, it is characterised in that：
Spray solution face size is identical with the shell-and-tube heat exchanger upper surface；
The spray solution face of the solution dispenser is provided with some discharge orifices, for solution to be uniformly distributed to lower section Heat exchange pipe surface.
29. absorption refrigeration unit internal heat components according to claim 24, it is characterised in that：
When the absorption refrigeration unit internal heat component is absorber, heat exchanger tube described in each row is towards the side of evaporator Ramp type liquid islocation plate is provided with, the ramp type liquid islocation plate is used to retain chilled water, only allows refrigerant steam to pass through；
When the absorption refrigeration unit internal heat component is regenerator, heat exchanger tube described in each row is towards the side of condenser Ramp type liquid islocation plate is provided with, the ramp type liquid islocation plate is used to retain the drop in refrigerant steam, only allows refrigerant steam to lead to Cross.
30. absorption refrigeration units, it is characterised in that：
Including the absorption refrigeration unit internal heat component described in any one in claim 1~29.
31. absorption refrigeration matrixes, it is characterised in that：
Including the absorption refrigeration unit described in several claims 30.
CN201621127345.4U 2016-10-17 2016-10-17 Absorption refrigeration unit internal heat component, absorption refrigeration unit and matrix Active CN206207784U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106288497A (en) * 2016-10-17 2017-01-04 四川捷元科技有限公司 Absorption refrigeration unit internal heat assembly, absorption refrigeration unit and matrix
CN111780294A (en) * 2020-06-09 2020-10-16 青岛海尔空调电子有限公司 Air conditioning unit with spray cooling system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106288497A (en) * 2016-10-17 2017-01-04 四川捷元科技有限公司 Absorption refrigeration unit internal heat assembly, absorption refrigeration unit and matrix
WO2018072315A1 (en) * 2016-10-17 2018-04-26 四川捷元科技有限公司 Internal heat exchange component of absorption refrigeration unit, and absorption refrigeration unit and matrix
CN111780294A (en) * 2020-06-09 2020-10-16 青岛海尔空调电子有限公司 Air conditioning unit with spray cooling system
CN111780294B (en) * 2020-06-09 2023-07-18 青岛海尔空调电子有限公司 Air conditioning unit with spray cooling system

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