CN206113419U

CN206113419U - Absorption heat pump and generator thereof

Info

Publication number: CN206113419U
Application number: CN201620662937.XU
Authority: CN
Inventors: 苏庆泉
Original assignee: University of Science and Technology Beijing USTB; Beijing Lianliyuan Technology Co Ltd
Current assignee: University of Science and Technology Beijing USTB; Beijing Lianliyuan Technology Co Ltd
Priority date: 2016-06-28
Filing date: 2016-06-28
Publication date: 2017-04-19
Anticipated expiration: 2026-06-28

Abstract

The utility model discloses an absorption heat pump and generator, the generator of absorption heat pump system includes the absorbing solution flash evaporation cavity room, heat exchanger and the 2nd absorbing solution spray set take place, the heat exchanger takes place locate the outside of absorbing solution flash evaporation cavity room, the indoor upper portion of absorbing solution flash evaporation cavity is equipped with the 2nd absorbing solution spray set, the 2nd absorbing solution spray set is connected with the 2nd absorbing solution spray piping of locating the outdoor portion of absorbing solution flash evaporation cavity, the 2nd absorbing solution spray piping is carried the indoor absorbing solution of absorbing solution flash evaporation cavity to the 2nd absorbing solution spray set and is sprayed, it sprays the pump to be equipped with the 2nd absorbing solution on the 2nd absorbing solution spray piping, the 2nd absorbing solution spray piping is connected with the cold flow side that takes place the heat exchanger. The utility model discloses can obtain the bigger temperature grade of industrial exhaust heat with more low -grade emergence heat source promotes.

Description

Absorption heat pump and its generator

Technical field

The utility model is related to the cycle operation field of Thermal Power Engineering, more particularly to a kind of absorption heat pump and its sends out Raw device.

Background technology

Absorption heat pump, including absorption system, first-class absorption type heat pump system, second-kind absorption-type heat pump system The absorption heat pump of system and other forms, is a kind of by the use of heat as driving force, is realized heat from low-temperature heat source to high temperature Thermal source pumping the circulatory system, be recycle low grade heat energy efficient apparatus, with energy saving, environmental protection it is dual Effect.As shown in figure 1, absorption type heat pump system generally include evaporimeter 100, absorber 200, generator 300, condenser 400, The parts such as heat exchanger, pipeline and canned motor pump.Wherein, the first refrigerant vapor passage is passed through between evaporimeter 100 and absorber 200 700 connections, are connected, the evaporation cavity of evaporimeter 100 between generator 300 and condenser 400 by the second refrigerant vapor passage 800 Evaporating heat exchanger 102 is provided with room 101, in the absorption chamber 201 of absorber 200 absorption heat-exchange device 202, generator 300 are provided with Generation chamber 301 in be provided with generation heat exchanger 302, is provided with condensing heat exchanger 402 in the condensing chamber 401 of condenser 400.Steam Send out device condensation working medium, absorber absorbent solution, generator absorbent solution and condenser refrigerant vapor by evaporating heat exchanger 102, Evaporation thermal source, absorption thermal source, the generation respectively with outside of absorption heat-exchange device 202, generation heat exchanger 302 and condensing heat exchanger 402 Thermal source and condensation thermal source are exchanged heat.According to the thermal source heat exchanger entrance produced in heat release or heat absorption and the temperature difference for exporting, The thermal source for being adopted can be divided into temperature-variable heat source and constant temperature thermal source, and generally, the heat exchanger entrance of thermal source is less than 3 DEG C with the temperature difference of outlet Thermal source can be considered constant temperature thermal source, and thermal source of the temperature difference of heat exchanger entrance and outlet more than 3 DEG C is then temperature-variable heat source.It is existing In absorption heat pump, the evaporating heat exchanger 302 of generator 300 is located in the evaporation chamber 301 of generator 300, to absorbent solution Carry out heating evaporation.The generation heat exchanger 302 of existing absorption heat pump is due to adopting pipe shell type heat exchange, it is difficult to improve heat exchange strong Degree and reduction heat transfer temperature difference.

For second-kind absorption-type heat pump system, by putting into industrial exhaust heat in evaporimeter 100, can be defeated from absorber 200 Go out heat of high temperature, the difference for exporting the temperature grade of heat of high temperature and the temperature grade of input industrial exhaust heat is referred to as heat pump temperature Rise.And the generation thermal source as driving force in the input of generator 300 generally utilizes same industrial exhaust heat or temperature grade ratio The lower low-temperature heat source of the industrial exhaust heat temperature grade.It is just required in order to lift the heat pump temperature rise of second-kind absorption-type heat pump Improve the concentration of absorber absorbent solution.But, for the absorption heat pump of existing all kinds, generator is inhaled in principle The concentration of receiving solution it is always high than the concentration of absorber absorbent solution (part being higher by is referred to as deflation scope, generally 3% to 5%), so, further lifting heat pump temperature rise just must be to put into the generation thermal source of higher temperature grade in generator 300 as generation Valency.Importantly, when generator 300 absorbent solution concentration close to or up absorbent saturated concentration when, absorbent knot Crystalline substance can be separated out and grown up on the surface that heat exchanger 302 occurs, and the heat and mass for causing generating process is obstructed.Moreover, give birth to Into bulky grain absorbent crystallization can also make absorbent solution circulating pump, absorbent solution spray equipment and absorbent solution circulating line Etc. the problem for facing blocking.

Further, for second-kind absorption-type heat pump system and with high temperature heat source to there is thermal source, so that low-temperature heat source to be carried It is purpose first-class absorption type heat pump or absorption type refrigeration circulating system to rise to middle temperature-heat-source, when the generation thermal source for using is change During temperature-heat-source, because the shell-and-tube occurred in chamber 301 for being arranged on generator 300 occurs heat exchanger 302 generation is difficult to Countercurrent flow between thermal source and absorbent solution and be difficult to improve heat transfer intensity and reduction heat transfer temperature difference, so as to cause generator Volume increases and cost increase.

In order to solve the problems, such as above-mentioned existing absorption heat pump generator, the utility model is moved to there is heat exchanger There is the outside of chamber, heat exchanger will occur described in absorbent solution Jing of generator and occur by the second absorbent solution spray pump Flash chamber after thermal source heat exchange in generator carries out spray flash distillation, is passed with the heat transfer for significantly strengthening the evaporation of absorbent solution working medium Matter process.Under conditions of thermic load is certain, there is the bigger required absorbent solution spray flow of alternating temperature amplitude of thermal source more Little, the power needed for the second absorbent solution spray pump is also less.Therefore, the utility model is particularly suited for adopting alternating temperature The absorption heat pump of the big generation thermal source of amplitude.

Utility model content

In view of this, the utility model embodiment provides a kind of generator of absorption type heat pump system, main purpose be for Avoid because of the excessive concentration of absorbent solution generating absorbent crystallization on the heat-transfer surface that heat exchanger occurs, and realize inhaling It is higher than to work under conditions of generator absorbent solution concentration to receive device absorbent solution concentration, meanwhile, improve generator absorbent solution work The heat and mass transfer process of matter evaporation, to reduce the volume and cost of generator.

To reach above-mentioned purpose, the utility model mainly provides following technical scheme：

On the one hand, the utility model embodiment provides a kind of generator of absorption heat pump, including absorbent solution flash distillation Chamber, the second absorbent solution spray equipment, the second absorbent solution spray piping, the second absorbent solution spray pump and exchange heat , there is heat exchanger located at the outside of absorbent solution flash chamber in device, the top in absorbent solution flash chamber is provided with the second absorption Solution spraying device, the second absorbent solution spray equipment and the second absorbent solution spray outside absorbent solution flash chamber Pipeline connects, and the absorbent solution in absorbent solution flash chamber is delivered to the second absorbent solution by the second absorbent solution spray piping Spray equipment is sprayed, and the second absorbent solution spray piping is provided with the second absorbent solution spray pump, the spray of the second absorbent solution Shower pipe road is connected with the cold flow side that heat exchanger occurs, and what thermal source occurred occurs heating agent pipeline with the hot-fluid side that heat exchanger occurs Connection.

Preferably, the generation heat exchanger is contra-flow heat exchanger.

Preferably, the generator also includes equipment for separating liquid from solid, in the absorbent solution flash chamber of the generator Absorbent solution in absorbent crystallize when, the equipment for separating liquid from solid by the absorbent solution be separated into containing absorbent crystallization With without absorbent crystallization two parts, wherein without absorbent crystallization absorbent solution Jing the second absorbent solution spray piping it is defeated The second absorbent solution spray equipment is delivered to, the absorbent solution containing absorbent crystallization is delivered to absorption by the first solution circulating line In device.

Preferably, the equipment for separating liquid from solid includes：

Liquid barrier, is connected with the internal face of the container body of the formation absorbent solution flash chamber of generator, liquid barrier with send out Interlayer is formed between the absorbent solution flash chamber internal face of raw device, the absorbent solution in absorbent solution flash chamber is by liquid barrier Lower end interlayer entrance enter interlayer in；

Overflow launder, is formed in the outside wall surface of the container body of generator, for accommodating by the absorbent solution overflowed in interlayer；

Overfall, is opened on the side wall of the container body of generator, and overfall connects interlayer and overflow launder；

Second absorbent solution spray piping is connected with overflow launder, the first solution circulating line and absorbent solution flash chamber Bottom connects；Wherein

When the absorbent of absorbent solution is crystallized, absorbent crystallization falls along the container body internal face of liquid barrier and generator To the bottom of generator, the absorbent crystallization for falling bottom is delivered to absorption with absorbent solution by the first solution circulating line Device, absorbent solution is entered in interlayer by liquid barrier lower end, and interlayer internal upper part point does not contain the absorbent solution of absorbent crystallization from overflowing Head piece enters overflow launder, and is delivered to the second absorbent solution spray equipment by the second absorbent solution spray piping.

Preferably, the cross section of the bottom of the absorbent solution flash chamber of the generator is gradually reduced, in infundibulate, The liquid barrier is obliquely installed.

Preferably, the container body of the formation absorbent solution flash chamber of the generator is cylindrical shape.

On the one hand, the utility model embodiment provides a kind of absorption heat pump, including evaporimeter, absorber, generator And condenser, by the first refrigerant vapor channel connection, the condenser and generator are by for the evaporimeter and absorber Two refrigerant vapor channel connections, by the first solution circulating line and the second solution circulation pipe between the generator and absorber Road is connected, and absorbent solution is delivered to absorber, the second solution circulation pipe by the first solution circulating line by generator Absorbent solution is delivered to generator by road by absorber, and the first solution circulating line and the second solution circulating line are provided with The absorbent solution of conveying is entered by solution heat exchanger in solution heat exchanger, the first solution circulating line and the second solution circulating line Row heat exchange, the evaporimeter and condenser are connected by working medium pipeline, and the working medium pipeline is by the work in the condenser Matter is delivered to evaporimeter, and the generator is above-mentioned generator.

Preferably, the absorption heat pump is second-kind absorption-type heat pump, the second solution circulating line is provided with Choke valve, the choke valve is located between absorber and the solution heat exchanger.Thus can avoid due to absorbent solution cooling Cause choke valve Crystallization Plugging.

Preferably, the condenser includes condensing chamber, condensing heat exchanger, condensation working medium spray equipment, condensation working medium Spray piping and condensation working medium spray pump, in condensing chamber, the condensation working medium is sprayed the condensation working medium spray equipment Outside condensing chamber, the condensing heat exchanger and condensation working medium spray pump are located at the condensation outside condensing chamber for pipeline On working medium spray piping, the condensation working medium spray pump is cold by working medium spray piping Jing is condensed by the condensation working medium in condensing chamber Condensation working medium spray equipment is delivered to after solidifying heat exchanger, the hot-fluid side phase of working medium spray piping and the condensing heat exchanger is condensed Connection, the cold flow side of condensing heat exchanger is connected with condensation heating agent pipeline.

Preferably, the condensing heat exchanger is contra-flow heat exchanger.

Preferably, the generator and the condenser share same container body, the top of the container chamber inside body For the condensing chamber of condenser, the absorbent solution flash chamber of generator is formed at the bottom of the container chamber inside body, described cold The bottom of solidifying chamber is provided with condensation working medium receiver, between the outer wall of the condensation working medium receiver and the inwall of the container body The second refrigerant vapor passage is formed, the condensation working medium receiver is connected with working medium pipeline, the condensing heat exchanger of the condenser It is connected with condensation heating agent pipeline, condensation heating agent carries out heat exchange by condensing heat exchanger, absorbs working medium condensation heat.

Preferably, the shared container body of the generator and the condenser is cylindrical vessel body.

Preferably, the condensing chamber includes first paragraph and second segment, wherein the internal diameter of first paragraph is less than second segment Internal diameter, condensation working medium receiver is located at second segment, and condensation working medium spray equipment is located at first paragraph, condenses the diameter of working medium receiver More than or equal to the internal diameter of the first paragraph of evaporation chamber.

Preferably, the lower end of the first paragraph of the condensing chamber is provided with condensation working medium flow-guiding structure, working medium water conservancy diversion is condensed Structure imports the condensation working medium on first paragraph inwall in condensation working medium receiver.

Preferably, the condensation working medium flow-guiding structure is condensation working medium deflector, condensation working medium deflector is by first paragraph Lower end extend downwardly and form, condense working medium deflector and stretch into space below first paragraph.

Preferably, the evaporimeter include evaporation chamber, evaporating heat exchanger, working medium spray piping, working medium spray pump and Working medium spray equipment, the evaporating heat exchanger is located at institute located at evaporation exterior thereto, the evaporating heat exchanger and working medium spray pump State on working medium spray piping, the working medium spray pump on working medium spray piping will evaporate the working medium of within the chamber by working medium shower Working medium spray equipment is delivered in road Jing after evaporating heat exchanger heat exchange, and the working medium spray equipment sprays working medium in evaporation within the chamber, The evaporation chamber is flash distillation chamber, and the working medium is steam in evaporation within the chamber flash distillation.

Preferably, the evaporating heat exchanger is contra-flow heat exchanger.

Preferably, the container body for forming evaporation chamber is cylindrical shape.

Preferably, the absorber includes absorption chamber, absorption heat-exchange device and the first absorbent solution spray equipment, it is described Outside the absorption chamber, the absorption heat-exchange device is contra-flow heat exchanger to absorption heat-exchange device, and the is provided with outside the absorption chamber One absorbent solution spray piping, the absorption heat-exchange device is located on the first absorbent solution spray piping, first absorbent solution Spray piping connects absorption chamber and the first absorbent solution spray equipment, and the first absorbent solution spray piping is provided with first Absorbent solution spray pump, the first absorbent solution spray pump is by the absorbent solution in absorption chamber by the first absorbent solution spray piping The first absorbent solution spray equipment is delivered to Jing after the heat exchange of absorption heat-exchange device, the first absorbent solution spray equipment is by absorbent solution Spray in absorption chamber, the absorbent solution absorbs the refrigerant vapor of evaporation within the chamber.

Preferably, the evaporimeter shares same container body, the top of the container chamber inside body with the absorber The evaporation chamber of evaporimeter is formed, the absorption chamber of absorber is formed at bottom, and the working medium spray equipment is located at the evaporimeter Evaporation chamber top, the bottom of the evaporation chamber is provided with working medium receiver, the working medium receiver and working medium shower Road connects, and between the outer wall of the working medium receiver and the inwall of evaporation chamber the first refrigerant vapor passage is formed.More preferably, institute Container body is stated for cylindrical shape.

Preferably, the evaporation chamber includes first paragraph and second segment, wherein the internal diameter of first paragraph is less than second segment Internal diameter, the working medium receiver is located at second segment, and the working medium spray equipment is located at first paragraph, the diameter of the working medium receiver More than or equal to the internal diameter of the first paragraph of evaporation chamber.

Preferably, the lower end of the first paragraph is provided with working medium flow-guiding structure, the working medium flow-guiding structure is by described first Working medium on section inwall is imported in working medium receiver.

Preferably, the working medium flow-guiding structure is working medium deflector, the working medium deflector is by under the first paragraph End extends downwardly and forms, and the working medium deflector stretches into the space below first paragraph.

Preferably, the working medium pipeline is connected with working medium spray equipment.

Preferably, the first solution circulating line connects the first absorbent solution spray equipment.

Compared with prior art, the beneficial effects of the utility model are：

It is external that the absorption type heat pump system that the utility model embodiment is provided will occur heat exchanger, be inhaled by strengthening generator The heat and mass transfer process of solution working medium evaporation is received, the volume of generator can be reduced, and be more beneficial for using high viscosity or contain The situation of the generation heating agent of fouling product, so as to further improve the performance and economy of heat pump.Meanwhile, by generator Flash chamber carries out adiabatic flash to the absorbent solution after heating, and absorbent can be avoided to tie on the heat-transfer surface that heat exchanger occurs Brilliant and cause heat and mass obstacle, the second-kind absorption-type heat pump for being particularly advantageous in being worked under high-concentration absorbent solution condition is followed Ring.Again because the generation heat exchanger of the utility model embodiment can adopt contra-flow heat exchanger, it is thus possible to which more efficient utilizing becomes There is thermal source in temperature, specific heating agent includes water, the aqueous solution, non-freezing solution, conduction oil, air, process gas, superheated steam and contains Steam of on-condensible gas etc..

Can also be dense in absorber absorbent solution using the second-kind absorption-type heat pump of the generator of the utility model embodiment Degree be higher than generator absorbent solution concentration, or even can or be close to absorb at a temperature of saturated concentration under conditions of work, thus Can realize obtaining larger industrial exhaust heat (also including underground heat and solar heat etc.) temperature using more low-grade generation thermal source Degree grade is lifted, so as to be allowed to be more convenient for recycling, it is thus possible to bring significant energy-saving effect and economic benefit to user.

By making absorbent crystalline particle tinyization of supersaturation partial crystallization and with mobility, the utility model can be effective Generation heat exchanger heat transfer mass transfer obstacle that ground overcomes that existing second-kind absorption-type heat pump faced, being caused by absorbent crystallization with And the blockage problem of pipeline etc..Further, the absorbent solution recoverable amount of system is then effectively reduced using funnel-shaped bottom portion, so that The starting time of the system of obtaining is shorter, and cost is lower, while compressive resistance and corrosion resistance are higher.

Further, producing the second of alternating temperature high temperature heat source especially for using alternating temperature low-temperature heat source and change middle benefit gas temperature-heat-source Class absorption heat pump, the first kind absorption type heat that change middle benefit gas temperature-heat-source is produced using alternating temperature high temperature heat source and alternating temperature low-temperature heat source Pumping system and using alternating temperature high temperature heat source and become middle benefit gas temperature-heat-source producing the Absorption Cooling System system of alternating temperature low-temperature heat source System, the spray flash distillation and spray-absorption mode with reference to absorbent solution or condensation working medium, by condenser, evaporimeter and absorber Heat exchanger moves to outside, by adopting adverse current plate heat exchanger, can significantly improve heat transfer intensity and reduce heat transfer temperature difference, and makes Heat pump simplifies the structure, and is more beneficial for the situation of the absorbent solution using high viscosity or containing absorbent crystallization, from And further improve the performance of heat pump and reduce manufacturing cost, and more easily safeguard.

Further, because the utility model is external by heat exchanger so that generator, condenser, evaporimeter and absorber Shape and size are no longer limited by heat-exchanging tube bundle size, thus can design generation according to the space at user installation scene The shape and size of device, condenser, evaporimeter and absorber.Simultaneously as absorbent solution is in generator flash chamber Spray-absorption process, the condensation working medium of flash process, condensation working medium in condenser condensing chamber is in evaporator evaporation chamber The heat and mass speed of spray-absorption process in absorber absorption chamber of flash process and absorbent solution be exceedingly fast, because And the volume of generator, condenser, evaporimeter and absorber is significantly reduced, the body overall so as to be substantially reduced heat pump Product, thus it is more beneficial for the popularization and application of absorption type heat pump system.

As external generation heat exchanger, condensing heat exchanger, evaporating heat exchanger or absorption heat-exchange device, the utility model for Easily cause generation heating agent, condensation heating agent, evaporation heating agent or the absorption heating agent of fouling or blocking, by changing using dismountable plate type Hot device, can make the maintenance of heat exchanger becomes simple.

Further, the spray flash distillation or the mode of spray-absorption as a result of condensation working medium or absorbent solution so that send out On-condensible gas in raw device, condenser, evaporimeter and absorber is to generating process, condensation process, evaporation process and absorption process The inhibition of heat and mass significantly reduce.During in particular by cylindrical vessel, due to the welding capacity of containment structure material it is big Width is reduced and container inside does not contain heat exchange material so that the yield of etching extent and then on-condensible gas is substantially reduced.

Scheme attached explanation

Fig. 1 is the structural representation of existing second-kind absorption-type heat pump.

Fig. 2 is the structural representation of the second-kind absorption-type heat pump of the utility model embodiment 1.

Fig. 3 is the structural representation of the second-kind absorption-type heat pump of the utility model embodiment 2.

Fig. 4 is the structural representation of the second-kind absorption-type heat pump of the utility model embodiment 3.

Fig. 5 is the structural representation of the second-kind absorption-type heat pump of the utility model embodiment 4.

Fig. 6 is the structural representation of the first-class absorption type heat pump of the utility model embodiment 5 and absorption system.

Fig. 7 is the structural representation of the first-class absorption type heat pump of the utility model embodiment 6 and absorption system.

Fig. 8 is the structural representation of the first-class absorption type heat pump of the utility model embodiment 7 and absorption system.

Specific embodiment

The utility model is described in further detail with reference to specific embodiment, but not as to of the present utility model Limit.In the following description, what different " embodiment " or " embodiment " referred to is not necessarily same embodiment.Additionally, one or Special characteristic, structure or feature in multiple embodiments can be combined by any suitable form.

Fig. 2 to Fig. 5 is respectively the example structure schematic diagram of the second-kind absorption-type heat pump that the utility model is provided.Fig. 6 It is respectively that the first-class absorption type heat pump of the utility model offer and the example structure of absorption system are illustrated to Fig. 8 Figure.Refer to the generator part of Fig. 2 to Fig. 8, the generator 300 of absorption heat pump, including absorbent solution flash chamber 301, , there is heat exchanger 302 located at absorbent solution flash chamber 301 in the absorbent solution spray equipment 303 of generation heat exchanger 302 and second Outside, the top in absorbent solution flash chamber 301 is provided with the second absorbent solution spray equipment 303, the second absorbent solution spray Device 303 is connected with the second absorbent solution spray piping 305 outside absorbent solution flash chamber 301, and second absorbs molten Absorbent solution in absorbent solution flash chamber 301 is delivered to the second absorbent solution spray equipment 303 and is entered by liquid spray piping 305 Row spray, the second absorbent solution spray piping 305 is provided with the second absorbent solution spray pump 304, the second absorbent solution shower Road 305 is connected with the cold flow side that heat exchanger 302 occurs, and what thermal source occurred occurs heating agent pipeline with the heat that heat exchanger 302 occurs Fluid side connects.

, will there is heat exchanger 302 located at the outside of absorbent solution flash chamber 301 in the generator 300 that the present embodiment is proposed, After the absorbent solution of the conveying of the second absorbent solution spray piping 305 heats up via the generation heat exchange of heat exchanger 302, the second suction is delivered to Receive solution spraying device 303 to be sprayed in the absorbent solution flash chamber 301 of generator 300.Based on vacuum insulation flash distillation Principle, make to carry out vacuum insulation sudden strain of a muscle in absorbent solution flash chamber 301 of the fine drop of absorbent solution in generator 300 Steam.Than the cross-current heat exchanger tube of prior art, the generation heat exchanger 302 in the present embodiment adopts adverse current plate heat exchanger, can Completely countercurrent flow is realized, so as to improving heat transfer intensity and reducing heat transfer temperature difference.The offer of the utility model embodiment is provided The second-kind absorption-type heat pump of generator can adopt high-concentration absorbent solution.Even if absorbent solution obtains being concentrated by evaporation and cold But, make absorbent occur supersaturation and partial crystallization goes out crystalline particle, due to produce tiny crystalline particle can be with absorbent solution stream It is dynamic, therefore, partially crystallizable is delivered to after generation heat exchanger 302 by the second absorbent solution spray piping 305, Jing heat exchanges, crystallization Can dissolve.Do not deposit the problems such as in the prior art heat-transfer surface causes heat and mass to be obstructed because of crystallization.In addition, employing above-mentioned reality The second-kind absorption-type heat pump for applying the generator of example is suitable for using the low-temperature heat source with temperature-variable heat source characteristic.

Referring to Fig. 3, as the preferred of above-described embodiment, further solve to be likely to result in using high-concentration absorbent solution Absorbent crystallizes brought problem, and the generator 300 in the utility model embodiment also includes equipment for separating liquid from solid, works as absorption When absorbent in absorbent solution in solution flash chamber 301 is crystallized, equipment for separating liquid from solid by absorbent solution be separated into containing Absorbent is crystallized and the two parts without absorbent crystallization, wherein the absorbent solution of absorbent solution Jing second without absorbent crystallization Spray piping 305 is delivered to the second absorbent solution spray equipment 303, and the absorbent solution containing absorbent crystallization is followed by the first solution Endless tube road 510 is delivered in absorber 200.By arranging equipment for separating liquid from solid in the present embodiment, to the absorption in absorbent solution Agent crystallization is separated, and is further reduced absorbent and is crystallized the impact worked generator 300.In addition, by arranging solid-liquid point From device, make not contained or few containing crystallization in the absorbent solution that output sprayed, the absorption of the utility model embodiment can be made Formula heat pump adopts the generation thermal source of lower temperature grade.

Used as the preferred of above-described embodiment, referring to Fig. 3, in the present embodiment, equipment for separating liquid from solid includes：

Liquid barrier 371, is connected with the internal face of the container body of the formation absorbent solution flash chamber 301 of generator 300, gear Interlayer 374, absorbent solution flash chamber are formed between liquid plate 371 and the internal face of absorbent solution flash chamber 301 of generator 300 Absorbent solution in 301 is entered in interlayer by the interlayer entrance 375 of the lower end of liquid barrier 371；

Overflow launder 373, is formed in the outside wall surface of the container body of generator 300, for accommodating by spilling in interlayer 374 Absorbent solution；

Overfall 372, is opened on the side wall of the container body of generator 300, and overfall 372 connects interlayer 374 and overflow Groove 373；

Second absorbent solution spray piping 305 is connected with overflow launder 373, the first solution circulating line 510 and absorbent solution The bottom connection of flash chamber 301；Wherein

When the absorbent of absorbent solution is crystallized, absorbent crystallization, to whereabouts, is fallen along liquid barrier 371 when absorbent is crystallized During 371 lower end of liquid barrier, partially absorbing agent crystallization can flow up with absorbent solution along interlayer, the absorbent entered in interlayer Crystallization is fallen again in Action of Gravity Field, and the container body internal face along generator falls the bottom of generator 300, the suction in interlayer Receive solution and realize separation of solid and liquid, the absorbent solution on interlayer top is substantially free of crystallization, absorbent crystallization passes through the with absorbent solution One solution circulating line 510 is delivered to absorber 200, and absorbent solution is entered in interlayer by the lower end of liquid barrier 371, interlayer internal upper part The absorbent solution for not containing absorbent crystallization is divided to enter overflow launder 373 from overfall 372, and by the second absorbent solution shower Road 305 is delivered to the second absorbent solution spray equipment 303.The equipment for separating liquid from solid simple structure of the present embodiment, good separating effect. Absorbent solution after flash distillation carries out separation of solid and liquid in the equipment for separating liquid from solid, then by the absorption containing absorbent crystalline particle Solution is sent to absorber；Because absorbent crystalline particle is tiny and with mobility, thus absorbent solution circulating pump will not be caused 550th, the blocking of the first absorbent solution spray equipment 203 and the first solution circulating line 510；Because absorbent is in generator 300 relatively low temperature, i.e. under relatively low solubility partial crystallization, and in the higher temperature of absorber 200, i.e. in higher solubility Lower dissolving, enables absorber concentration higher than the absorbent solution of generator absorbent solution concentration, it might even be possible to be used in Or the saturated concentration being close at a temperature of absorbing, so as to industrial exhaust heat can be caused under conditions of relatively low generation heat source temperature grade Obtain larger temperature grade to be lifted, be allowed to be more convenient for recycling, it is thus possible to user bring significant energy-saving effect and Economic benefit.Liquid barrier 371 should be obliquely installed, to improve separating effect.

As the preferred of above-described embodiment, referring to Fig. 2 and Fig. 3, under the absorbent solution flash chamber 301 of generator 300 The cross section in portion is gradually reduced, in infundibulate.The bottom funneling of the absorbent solution flash chamber 301 of generator 300 (works as appearance When body is cylindrical shape, the bottom of absorbent solution flash chamber 301 is in turbination), even if being not provided with liquid barrier 371 also to inhaling Receive agent crystalline deposit to play a role.In addition, the cross section of the bottom of absorbent solution flash chamber 301 is gradually reduced can have Effect reduces the recoverable amount of liquid, so that the starting time of system is shorter, cost is lower, while compressive resistance and corrosion resistance It is higher.Meanwhile, the first absorbent solution that absorbent crystallization can be made to be delivered to by the first solution circulating line 510 in absorber 200 Spray equipment 203.

On the other hand, the utility model embodiment provides a kind of second-kind absorption-type heat pump, referring to Fig. 2 to Fig. 5, the suction Receipts formula heat pump includes evaporimeter 100, absorber 200, generator 300 and condenser 400；Evaporimeter 100 evaporates chamber 101 Connected by the first refrigerant vapor passage 700 with the absorption chamber 201 of absorber 200, the He of condensing chamber 401 of condenser 400 The absorbent solution spray chamber 301 of generator 300 is connected by the second refrigerant vapor passage 800, generator 300 and absorber The circulation of absorbent solution is realized between 200 by solution circulating line, wherein the first solution circulating line 510 by absorbent solution by Generator 300 is delivered to absorber 200, and absorbent solution is delivered to generator by the second solution circulating line 520 by absorber 200 300, the first solution circulating line 510 and the second solution circulating line 520 are provided with solution heat exchanger 530, the circulation of the first solution The absorbent solution of conveying carries out heat exchange by solution heat exchanger 530 in the solution circulating line 520 of pipeline 510 and second, steams Send out device 100 and condenser 400 is connected by working medium pipeline 610, the working medium in condenser 400 is delivered to steaming by working medium pipeline 610 Device 100 is sent out, wherein, generator 300 is the generator described in any of the above-described embodiment.

It is external that the second-kind absorption-type heat pump that the utility model embodiment is provided will occur heat exchanger, and heat exchanger occurs can be adopted With adverse current plate heat exchanger, so as to improving heat transfer intensity and reducing heat transfer temperature difference, and can be more efficient utilization temperature-variable heat source, Using heating agent include water, hot-air, conduction oil, superheated steam and steam containing on-condensible gas etc..Absorbent can be avoided Crystallize on the heat-transfer surface that heat exchanger occurs and cause heat and mass obstacle, be particularly advantageous under high-concentration absorbent solution condition The second-kind absorption-type heat pump circulation of work.Therefore, second-kind absorption-type heat pump can be higher than to send out in absorber absorbent solution concentration Work under conditions of raw device absorbent solution concentration, it is larger to obtain using more low-grade generation thermal source such that it is able to realize Industrial exhaust heat (also including underground heat and solar heat etc.) temperature grade is lifted, so as to be allowed to be more convenient for recycling, it is thus possible to Significant energy-saving effect and economic benefit are brought to user.By absorbent crystalline particle tinyization and tool that make supersaturation partial crystallization Have a mobility, the utility model can with it is being faced efficiently against existing second-kind absorption-type heat pump, crystallized by absorbent The blockage problem of the generation heat exchanger heat transfer mass transfer obstacle and pipeline etc. that cause.

It is NM in above-described embodiment, for flow valve necessary to system circulation and liquid pump etc., art technology Personnel should know, or obtain from the prior art.Such as in second-kind absorption-type heat pump, working medium pipeline 610 is provided with working medium Pump 620, in order to working medium is delivered to into evaporimeter from condenser by working medium pipeline 610；Set on first solution circulating line 510 There is absorbent solution circulating pump 550, the second solution circulating line 520 is provided with choke valve 540.And for first-class absorption type heat pump System or absorption system, due in outer loop pipeline liquid flow direction with second-kind absorption-type heat pump conversely, because This, working medium pipeline 610 by working medium from condenser be delivered to evaporimeter when, it is not necessary to working medium pump 620, only need on working medium pipeline 610 Throttling valve 630 is set；And choke valve 540 then needs transposition, i.e. choke valve with absorbent solution circulating pump 550 540 on the first solution circulating line 510, and absorbent solution circulating pump 550 is on the second solution circulating line 520.

As the preferred of above-described embodiment, referring to the Equations of The Second Kind that Fig. 4 and Fig. 8, Fig. 4 are provided for the embodiment of the utility model one Absorption heat pump, the first-class absorption type heat pump that Fig. 8 is provided for the embodiment of the utility model one.Wherein, absorber 200 includes inhaling Chamber 201, the absorbent solution spray equipment 203 of absorption heat-exchange device 202 and first are received, absorption heat-exchange device 202 is located at absorption chamber 201 Outside, absorption heat-exchange device 202 is contra-flow heat exchanger, and the first absorbent solution spray piping 205 is provided with outside absorption chamber 201, is inhaled Heat exchanger 202 is received on the first absorbent solution spray piping 205, the first absorbent solution spray piping 205 connects absorption chamber 201 and the first absorbent solution spray equipment 203, the first absorbent solution spray piping 205 is provided with the first absorbent solution spray pump 204.First absorbent solution spray pump 204 is by the absorbent solution in absorption chamber 201 by the Jing of the first absorbent solution spray piping 205 Absorption heat-exchange device 202 delivers to the first absorbent solution spray equipment 203 after exchanging heat, the first absorbent solution spray equipment 203 will absorb Solution spray in absorption chamber 201, absorbent solution absorbs the refrigerant vapor of evaporation within the chamber.The present embodiment is in evaporating heat exchanger It is on the basis of 102 is external, absorption heat-exchange device 202 is also external, the heat and mass transfer process of absorber part is enhanced, further carry The performance of high whole heat pump.In second-kind absorption-type heat pump, the first absorbent solution spray piping 205 and absorption heat-exchange device 202 hot-fluid side connection, the cold flow side of absorption heat-exchange device 202 is connected with heating agent pipeline is absorbed.

Used as the preferred of above-described embodiment, referring to Fig. 4 and Fig. 8, the cross section of the bottom of absorption chamber 201 is gradually reduced.When When the container body of absorber 200 adopts cylindrical shape, the bottom of absorption chamber 201 is turbination.It is effectively reduced the guarantor of liquid The amount of having, so that the starting time of system is shorter, cost is lower, while compressive resistance and corrosion resistance are higher.

Used as the preferred of above-described embodiment, the first solution circulating line 510 connects the first absorbent solution spray equipment 203. The present embodiment connects the first solution circulating line 510 with the first absorbent solution spray equipment 203 on the basis of above-described embodiment Connect, so that the suction that the absorbent solution of the conveying of the first solution circulating line 510 is conveyed with the first absorbent solution spray piping 205 Receipts solution mixing is delivered to the first absorbent solution spray equipment 203 and is sprayed.Power loss can further be reduced.

As the preferred of above-described embodiment, referring to Fig. 4, evaporimeter 100 include evaporation chamber 101, evaporating heat exchanger 102, Working medium spray piping 105, working medium spray pump 104 and working medium spray equipment 103, evaporating heat exchanger 102 is outside evaporation chamber 101 Portion, evaporating heat exchanger 102 is contra-flow heat exchanger, and evaporating heat exchanger 102 and working medium spray pump 104 are located at working medium spray piping 105 On, the working medium spray pump 104 on working medium spray piping 105 is by the working medium evaporated in chamber 101 by working medium spray piping 105 Working medium spray equipment 103 is delivered to Jing after evaporating heat exchanger 102 exchanges heat, working medium spray equipment 103 is by working medium in evaporation chamber 101 Spray, evaporation chamber 101 is flash distillation chamber, and working medium flash distillation in evaporation chamber 101 is steam.Working medium spray piping 105 and evaporation The cold flow side connection of heat exchanger 102.

The evaporating heat exchanger 102 of evaporimeter 100 is moved to the utility model embodiment the outside of evaporation chamber 101, can be with Simplifying the structure for heat pump is made, and by adopting adverse current plate heat exchanger, is improved the heat transfer intensity of evaporating heat exchanger and is subtracted Little heat transfer temperature difference, also, for the evaporation heating agent for easily causing fouling or blocking, by adopting dismountable plate type heat exchanger, The maintenance of heat exchanger can be made becomes simple, is also beneficial to the situation of the absorbent solution using high viscosity or containing absorbent crystallization, So as to further improve the performance and economy of heat pump.Especially for the absorption heat pump using alternating temperature low-temperature heat source, With reference to spray flash distillation so that working medium rapid evaporation, so as to reduce working medium outer loop flow, power loss is reduced.

Used as the preferred of above-described embodiment, the container body for forming evaporation chamber 101 is cylindrical shape.In the present embodiment, evaporation The container body of device 100 adopts cylindrical shape, improves the compressive property of evaporimeter 100.And in prior art, due to evaporating heat exchanger 102 is built-in, in order to improve the working medium of spray and the heat transfer effect of evaporating heat exchanger 102, needs using the shell-and-tube of square arrangement Heat exchanger, the container body of evaporimeter 100 is typically only capable to adopt cuboid, and compressive property is poor.

As the preferred of above-described embodiment, referring to Fig. 5.The absorption heat pump that Fig. 5 is provided for the embodiment of the utility model one The structural representation of system.Wherein, evaporimeter 100 shares same container body with absorber 200, and the container body is cylindrical shape, is held The evaporation chamber 101 of evaporimeter 100 is formed at the top of device cavity room, and the absorption chamber 201 of absorber 200, work are formed at bottom Located at the top of the evaporation chamber 101 of evaporimeter, the bottom for evaporating chamber 101 is provided with working medium receiver to matter spray equipment 103 106, working medium receiver 106 is used to accommodate unevaporated condensation working medium, and working medium receiver 106 is connected with working medium spray piping 105, The first refrigerant vapor passage 700 is formed between the outer wall of working medium receiver 106 and the inwall of evaporation chamber 101.In the present embodiment Evaporimeter 100 and absorber 200 share same container body, the container body be cylindrical shape, with compressive property it is high the characteristics of, and tie Structure is simple.

Used as the preferred of above-described embodiment, evaporation chamber 101 includes first paragraph and second segment, and the internal diameter of wherein first paragraph is little In the internal diameter of second segment, working medium receiver 106 is located at second segment, and working medium spray equipment 103 is located at first paragraph, working medium receiver 106 internal diameter with diameter greater than the first paragraph equal to evaporation chamber.The present embodiment passes through different two sections of setting internal diameter, makes spray Working medium entirely fall in working medium receiver 106.In addition, using the heat and mass speed of evaporation process more than absorption process The characteristic of heat and mass speed, makes the volume of evaporation chamber less than the volume of absorption chamber, and so as to reach installing space, drop are reduced The purpose of low materials'use amount and cost.

Used as the preferred of above-described embodiment, the lower end of first paragraph is provided with working medium flow-guiding structure 109, working medium flow-guiding structure 109 Working medium on first paragraph inwall is imported in working medium receiver 106.By arranging working medium flow-guiding structure 109, spray is made first Working medium on section inwall can be entirely fallen in working medium receiver 106.The specific configuration of working medium flow-guiding structure 109 is not limited, only Utilize and all import the working medium of spray in working medium receiver 106.Present embodiments provide a kind of simple structure, it is easy to The working medium flow-guiding structure of manufacture, the working medium flow-guiding structure is working medium deflector, working medium deflector from first paragraph lower end to downward Stretch and form, working medium deflector stretches into the space below first paragraph.So, the working medium on first paragraph inwall can fall along working medium deflector Enter in working medium receiver 106.

Used as the preferred of above-described embodiment, working medium pipeline 610 is connected with working medium spray equipment 103.Working medium pipeline 610 is conveyed The working medium that conveys with working medium spray piping 105 of working medium mix after sprayed by working medium spray equipment.Further reduce work Flow in matter spray piping 105, directly power will be more saved compared with working medium pipeline 610 in working medium input evaporation chamber 101.

Used as the preferred of above-described embodiment, the first solution circulating line 510 and the second solution circulating line 520 are provided with molten The absorbent solution of conveying passes through solution in liquid heat exchanger 530, the first solution circulating line 510 and the second solution circulating line 520 Heat exchanger 530 carries out heat exchange.By following for absorbent solution between absorber 200 and generator 300 in the present embodiment Solution heat exchanger 530 is set on the solution circulating line of ring, and realize absorbent solution carries out heat exchange in cyclic process, enters one Step improves the thermal efficiency of heat pump.

Used as the preferred of above-described embodiment, absorbent solution circulating line is provided with choke valve 540, and choke valve 540 is located at suction Receive between device 200 and solution heat exchanger 530.In second-kind absorption-type heat pump system, choke valve 540 is located at the second solution circulation pipe On road 520.In first-class absorption type heat pump system or absorption system, choke valve 540 is located at the first solution circulation pipe On road 510.Particularly in second-kind absorption-type heat pump, the present embodiment can prevent choke valve 540 because temperature reduce and Crystallization Plugging. The outlet 531 of the solution heat exchanger 530 on the second solution circulating line 520 is arranged at generator 300.I.e. the second solution is followed The absorbent solution of the conveying of endless tube road 520, should be with short distance input of trying one's best to generator 300 from after the output of solution heat exchanger 530 It is interior.

Used as the preferred of above-described embodiment, condenser 400 includes condensing chamber 401, condensing heat exchanger 402, condensation working medium Spray equipment 403, condensation working medium spray piping 405 and condensation working medium spray pump 404, condensation working medium spray equipment 403 is located at cold In solidifying chamber 401, condensation working medium spray piping 405 outside condensing chamber 401, spray by condensing heat exchanger 402 and condensation working medium Drench pump 404 on condensation working medium spray piping 405, condensation working medium spray pump 404 by the condensation working medium in condensing chamber 401 by Condensation working medium spray equipment 403 is delivered to after the condensed heat exchanger 402 of condensation working medium spray piping 405, working medium shower is condensed Road 405 is connected with the hot-fluid side of condensing heat exchanger 402, cold flow side and the condensation heating agent pipeline phase of cooling heat exchanger 402 Connection.In the present embodiment that condensing heat exchanger 402 is external, be capable of achieving working medium carries out countercurrent flow in condensing heat exchanger 402.It is cold Solidifying heat exchanger 402 can adopt dismountable plate type heat exchanger, realize completely countercurrent flow, improve heat transfer effect, and for appearance Easily cause the condensation heating agent of fouling or blocking, be easy to heat exchanger to be safeguarded.

Used as the preferred of above-described embodiment, referring to Fig. 2 to Fig. 8, generator 300 and condenser 400 share same container body, The top of the chamber in the container body is the condensing chamber 401 of condenser 400, and the bottom of the container chamber inside body is generator 300 absorbent solution flash chamber 301, bottom is provided with condensation working medium receiver 406 in condensing chamber 401, and condensation working medium is received The second refrigerant vapor passage 800, condensation working medium receiver 406 and working medium are formed between the outer wall of device 406 and the inwall of container body Pipeline 610 connects.The condensing heat exchanger of condenser is connected with condensation heating agent pipeline, and condensation heating agent is carried out by condensing heat exchanger Heat exchange, absorbs working medium condensation heat.The absorbent solution of the spray of the second absorbent solutions of Jing spray equipment 303 is in absorbent solution flash distillation chamber Flash distillation in room 301, working medium condensation in condensing chamber 401 of evaporation, condensation working medium receiver 406 accepts refrigerant vapor condensation shape Into liquid working substance, working medium pipeline 610 is delivered to evaporimeter 100 by the liquid working substance that working medium receiver 406 accepts is condensed.Condensation Device 400 and generator 300 share a container body, and container body internal upper part forms condensing zone, and bottom forms flash zone, further carries High performance and reduces cost.

In the case where generator 300 and condenser 400 share same cylindrical vessel body, condensing heat exchanger can be with built-in Also can be external.Wherein when condensing heat exchanger is built-in, condensing heat exchanger 402 is located at the top of condensation working medium receiver 406.Send out The condensed heat exchanger 402 of refrigerant vapor produced in the absorbent solution flash chamber 301 of raw device 300 is cooled down, and is condensed into liquid, and Fall in condensation working medium receiver 406.

When condensing heat exchanger 402 is external, condenser 400 includes condensing chamber 401, condensing heat exchanger 402, condensation working medium Spray equipment 403, condensation working medium spray piping 405, condensation working medium spray pump 404 and condensation working medium receiver 406, condense working medium Spray equipment 403 in the condensing chamber 401, positioned at the top of condensation working medium receiver 406, condensation working medium spray piping 405 with Condensation working medium receiver 406 connects.It is in the present embodiment that condensing heat exchanger 402 is external, working medium is capable of achieving in cooling heat exchanger 402 Inside carry out countercurrent flow.

Used as the preferred of above-described embodiment, condensing chamber 401 includes first paragraph and second segment, and the internal diameter of wherein first paragraph is little In the internal diameter of second segment, condensation working medium receiver 406 is located at second segment, and condensation working medium spray equipment 403 is located at first paragraph, condensation The internal diameter with diameter greater than the first paragraph equal to evaporation chamber of working medium receiver 406.The present embodiment is different by arranging internal diameter Two sections, condensation working medium is set to entirely fall in condensation working medium receiver 406.In addition, sharing an appearance in condenser and generator In the case of device, the internal diameter of absorbent solution flash chamber 301 is consistent with the internal diameter of the second segment of condensing chamber 401.Using condensing The heat and mass speed of journey is less than flash chamber more than the characteristic of the heat and mass speed of generating process, the volume for making condensing chamber Volume, so as to reach the purpose for reducing installing space, reducing materials'use amount and cost.

Used as the preferred of above-described embodiment, the lower end of the first paragraph of condensing chamber 401 is provided with condensation working medium flow-guiding structure 409, condense working medium flow-guiding structure 409 and the condensation working medium on first paragraph inwall is imported in condensation working medium receiver 406.By setting Condensation working medium flow-guiding structure 409 is put, is allow condensation working medium of the spray on first paragraph inwall to entirely fall in condensation working medium and is connect Receive in device 406.The specific configuration of condensation working medium flow-guiding structure 409 is not limited, as long as being condensed using the working medium of spray is all imported In working medium receiver 406.Present embodiments provide a kind of simple structure, it is easy to the condensation working medium flow-guiding structure of manufacture, should Condensation working medium flow-guiding structure is condensation working medium deflector, and condensation working medium deflector is extended downwardly by the lower end of first paragraph and formed, cold Solidifying working medium deflector stretches into the space below first paragraph.So, the condensation working medium on first paragraph inwall can be along condensation working medium water conservancy diversion Plate is fallen in condensation working medium receiver 406.

Refer to Fig. 2 to Fig. 5 and the above-mentioned description with regard to absorption heat pump, the absorption heat pump of the utility model embodiment Round-robin method include evaporimeter link, absorber link, generator link and condenser link, wherein

Evaporimeter link, working medium absorbs heat and is evaporated to refrigerant vapor from the evaporation heating agent for flowing through evaporating heat exchanger, institute State refrigerant vapor to be transported in absorber；

Absorber link, absorbent solution absorbs the evaporimeter refrigerant vapor for generating and the absorption heat for discharging high temperature, absorbs By flowing through the absorption heating agent of absorption heat-exchange device to outside output, the absorbent solution in absorber is transported in generator heat；

Generator link, the second absorbent solution spray equipment positioned at the absorbent solution flash chamber top of generator is to rising Absorbent solution after temperature is sprayed, and is made the fine drop of absorbent solution and is carried out in the absorbent solution flash chamber of generator very Empty adiabatic flash；The refrigerant vapor that flash distillation is produced is delivered to condenser；In flash process absorbent solution obtain be concentrated by evaporation and Cooling；Absorbent solution after flash distillation falls the bottom of absorbent solution flash chamber, the absorbent solution of a part of absorbent solution Jing second , there is heat by heat exchanger occurring and heating agent heat exchange occurring to absorb in the generation heat exchanger that spray pump is entered outside generator The heat in source, the absorbent solution after intensification is transported to the second absorbent solution spray equipment；A part of absorbent solution Jing solution circulation The first absorbent solution spray equipment that pump is delivered in absorber is sprayed；

Condenser link, carries out condensing and absorption condensation heat to the refrigerant vapor that generator is produced, and the condensation heat is by flowing The condensation heating agent of condensed heat exchanger is taken away；The liquid working substance for condensing formation within the condenser is transported to evaporation via working medium pipeline Device.

The absorption heat pump cycle method that the utility model embodiment is provided is external in the container of generator by absorbent solution Portion is heated, and when generation heat exchanger can be avoided built-in, absorbent is crystallized on the heat-transfer surface that heat exchanger occurs and causes biography Hot mass transfer obstacle, is particularly advantageous in the second-kind absorption-type heat pump worked under high-concentration absorbent solution condition.Again due to this reality Contra-flow heat exchanger can be adopted with the generation heat exchanger of new embodiment, it is thus possible to which more efficient utilization alternating temperature occurs thermal source, bag Include water, hot-air, conduction oil, superheated steam and the steam containing on-condensible gas etc..Particularly second-kind absorption-type heat pump may be used also Work under conditions of absorber absorbent solution concentration is higher than generator absorbent solution concentration, therefore can realize using relatively low product The generation thermal source of position is lifted obtaining larger industrial exhaust heat (also including underground heat and solar heat etc.) temperature grade, so that More in recycling, it is thus possible to bring significant energy-saving effect and economic benefit to user.By making supersaturation partial crystallization Absorbent crystalline particle tinyization and with mobility, the utility model can be efficiently against existing second-kind absorption-type heat pump The blockage problem of generation heat exchanger heat transfer mass transfer obstacle and pipeline etc. faced, being caused by absorbent crystallization.

Evaporimeter link, absorber link and condenser link in above-described embodiment can be same as the prior art, or knot Close and state each embodiment of absorption type heat pump system, it is each in the absorption heat pump cycle method that the utility model embodiment is provided Link can accordingly be changed.

As the preferred of above-described embodiment, with reference to the external embodiment of absorption heat-exchange device in absorption type heat pump system, absorb Device link, the absorbent solution in the absorption chamber of absorber is exported via the first absorbent solution spray piping, the first absorbent solution The absorbent solution of spray piping conveying is delivered to the first suction in the absorption chamber of absorber Jing after the heat exchange of absorption heat-exchange device Receive solution spraying device to be sprayed, the absorbent solution for spraying out absorbs the refrigerant vapor of evaporimeter generation simultaneously in absorption chamber The absorption heat of high temperature is discharged, the absorption heating agent for absorbing the cold flow side that heat passes through absorption heat-exchange device is to outside output.

Used as the preferred of above-described embodiment, the absorbent solution conveyed by generator is delivered to the first absorbent solution spray equipment Sprayed.The present embodiment can further reduce outer loop flow, reduce power loss.

As the preferred of above-described embodiment, with reference to the external embodiment of evaporating heat exchanger in absorption type heat pump system, wherein Evaporimeter link, the working medium of the evaporation within the chamber of evaporimeter exports via working medium spray piping, the conveying of working medium spray piping Working medium is delivered to the working medium spray equipment of the evaporation within the chamber positioned at evaporimeter Jing after evaporating heat exchanger heat exchange and is sprayed, A part for the working medium for spraying out is refrigerant vapor in the flash distillation of evaporation within the chamber, and refrigerant vapor is transported in absorber.In evaporation The working medium of link evaporation within the chamber is exported by working medium spray piping, and Jing external evaporating heat exchanger carries out countercurrent flow, so It is delivered to afterwards and is sprayed positioned at the working medium spray equipment for evaporating within the chamber, a part for the working medium for spraying out is in evaporation within the chamber Flash distillation is steam, and Jing the first refrigerant vapor passages are delivered to quilt in absorption chamber under the strong absorption of absorbent solution in the absorber Absorbent solution absorbs.The circulation of other parts in the present embodiment can be same as the prior art.

As the preferred of above-described embodiment, with reference to the external embodiment of condensing heat exchanger in absorption type heat pump system, wherein Condenser link, condensation working medium spray pump is by the condensation working medium in condensing chamber by condensing the condensed heat exchange of working medium spray piping Condensation working medium spray equipment is delivered to after device, the working medium produced to generator after the condensed working medium spray equipment spray of working medium is condensed Steam is condensed and is discharged condensation heat, and condensation heat is taken away by the condensation heating agent in condensing heat exchanger.The present embodiment is further The heat and mass transfer process of reinforcing whole system.

Used as the preferred of above-described embodiment, the heat that evaporation heating agent of the working medium from evaporating heat exchanger absorbs is industrial exhaust heat The either heat of underground heat either solar heat or air conditioner coolant.The system and method for the utility model embodiment can adopt relatively low The generation thermal source of grade is lifted obtaining larger industrial exhaust heat (also including underground heat and solar heat etc.) temperature grade, so as to It is allowed to be more convenient for recycling, it is thus possible to bring significant energy-saving effect and economic benefit to user.

As the preferred of above-described embodiment, after the absorbent solution warp knuckle stream valve throttling in absorber, into solution heat exchanger In with from generator absorbent solution heat exchange after be transported in generator.

Used as the preferred of above-described embodiment, absorbent solution is changed in cyclic process between absorber and generator by solution Hot device carries out heat exchange.

As the preferred of upper embodiment, equipment for separating liquid from solid is provided with generator, when absorbent solution is steamed in flash process Send out concentration and cool down, absorbent occurs supersaturation and partial crystallization when going out tiny and crystalline particle with mobility, in generator Absorbent solution carries out separation of solid and liquid by equipment for separating liquid from solid, and the absorbent solution containing absorbent crystalline particle is by solution circulation pump Absorber is transported to, the absorbent solution for not containing absorbent crystallization is conveyed by the second absorbent solution spray pump, and Jing occurs heat exchanger After be transported to the second absorbent solution spray equipment.

Used as the preferred of above-described embodiment, for water, the absorbent of employing can be selected from following LiBr to the working medium for being adopted, LiNO₃, LiCl and CaCl₂In at least one；Generation heating agent, condensation heating agent, evaporation heating agent and absorption heating agent are fluid liquid Or gaseous fluid, wherein fluid liquid includes water, the aqueous solution, non-freezing solution, conduction oil etc., and gaseous fluid includes air, technique Gas, superheated steam and the steam containing on-condensible gas etc..

By the description of the various embodiments described above and preferred embodiment, and understand with reference to Fig. 2-Fig. 8, the utility model embodiment In evaporimeter 100, absorber 200, generator 300 and condenser 400 can be used for absorption system, the first kind absorption type Heat pump is with the absorption heat pump of, second-kind absorption-type heat pump system other forms.

The absorption heat pump and round-robin method that the utility model embodiment is provided can realize existing Equations of The Second Kind absorption type heat The mode of operation to be realized of pump.It is illustrated by the temperature curve of the saturated vapour pressure of absorbent solution, existing The generator of two class absorption heat pumps is a point of the temperature curve of the saturated vapour pressure in an absorbent unsaturation solution Upper work, and absorber is steamed less than the saturation of the absorbent unsaturation solution of one deflation scope of generator in another concentration Work on a point on the temperature curve of air pressure, the temperature of absorber operating point is higher than the temperature of generator operating point.Compare Under, the generator of absorption heat pump of the present utility model is under absorbent saturated concentration, i.e. absorbent saturated solution Work on one point of the temperature curve of saturated vapour pressure, and absorber is the temperature of the saturated vapour pressure in same saturated solution Write music and worked on another aspect of (or the close curve) on line, the temperature of absorber operating point is higher than generator operating point Temperature.Due to the saturation solubility of temperature more high-selenium corn agent it is bigger, so heat pump of the present utility model is in absorber The concentration of absorbent solution is higher than operation under conditions of the concentration of generator absorbent solution.Therefore, the utility model can be utilized More low-grade generation thermal source is lifted obtaining larger industrial exhaust heat (also including underground heat and solar heat etc.) temperature grade, So as to be allowed to be more convenient for recycling, it is thus possible to bring significant energy-saving effect and economic benefit to user.In addition, this practicality By making absorbent crystalline particle tinyization of supersaturation partial crystallization and with mobility in new embodiment, can be efficiently against Generation heat exchanger heat transfer mass transfer obstacle that existing second-kind absorption-type heat pump is faced, being caused by absorbent crystallization and pipeline Deng blockage problem.

The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to In this, any those familiar with the art can readily occur in change in the technical scope that the utility model is disclosed Or replace, all should cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with the power The protection domain that profit is required is defined.

Claims

1. the generator of absorption heat pump, it is characterised in that including absorbent solution flash chamber, the second absorbent solution spray dress Put, the second absorbent solution spray piping, the second absorbent solution spray pump and occur heat exchanger, occur heat exchanger located at absorb it is molten The outside of liquid flash chamber, the top in absorbent solution flash chamber is provided with the second absorbent solution spray equipment, and second absorbs molten Liquid spray equipment is connected with the second absorbent solution spray piping outside absorbent solution flash chamber, the spray of the second absorbent solution Absorbent solution in absorbent solution flash chamber is delivered to the second absorbent solution spray equipment and is sprayed by shower pipe road, and second inhales Receive solution spraying pipeline and be provided with the second absorbent solution spray pump, the second absorbent solution spray piping and the cold flow that heat exchanger occurs Side connects, and the heating agent pipeline that occurs that thermal source occurs is connected with the hot-fluid side of generation heat exchanger.

2. the generator of absorption heat pump according to claim 1, it is characterised in that the generation heat exchanger is changed for adverse current Hot device.

3. the generator of absorption heat pump according to claim 1, it is characterised in that the generator is also including solid-liquid point When absorbent in the absorbent solution in device, the absorbent solution flash chamber of the generator is crystallized, the separation of solid and liquid The absorbent solution is separated into device the two parts containing absorbent crystallization and without absorbent crystallization, wherein without absorbent Absorbent solution Jing the second absorbent solution spray piping of crystallization is delivered to the second absorbent solution spray equipment, containing absorbent crystallization Absorbent solution be delivered in absorber by the first solution circulating line.

4. the generator of absorption heat pump according to claim 3, it is characterised in that the equipment for separating liquid from solid includes：

Liquid barrier, is connected with the internal face of the container body of the formation absorbent solution flash chamber of generator, liquid barrier and generator Absorbent solution flash chamber internal face between form interlayer, the absorbent solution in absorbent solution flash chamber is by under liquid barrier The interlayer entrance at end is entered in interlayer；

Second absorbent solution spray piping is connected with overflow launder, the bottom of the first solution circulating line and absorbent solution flash chamber Connection；Wherein

When the absorbent of absorbent solution is crystallized, absorbent crystallization is fallen along the container body internal face of liquid barrier and generator and is sent out The bottom of raw device, the absorbent crystallization for falling bottom is delivered to absorber with absorbent solution by the first solution circulating line, inhales Receive solution to be entered in interlayer by liquid barrier lower end, interlayer internal upper part point does not contain the absorbent solution of absorbent crystallization and enters from overfall Enter overflow launder, and the second absorbent solution spray equipment is delivered to by the second absorbent solution spray piping.

5. the generator of absorption heat pump according to claim 4, it is characterised in that the absorbent solution of the generator is dodged The cross section for steaming the bottom of chamber is gradually reduced, and in infundibulate, the liquid barrier is obliquely installed.

6. absorption heat pump, including evaporimeter, absorber, generator and condenser, the evaporimeter and absorber pass through first Refrigerant vapor channel connection, the condenser and generator pass through the second refrigerant vapor channel connection, the generator and absorption Connected by the first solution circulating line and the second solution circulating line between device, the first solution circulating line will absorb molten Liquid is delivered to absorber by generator, and absorbent solution is delivered to generator by the second solution circulating line by absorber, institute State the first solution circulating line and the second solution circulating line is provided with solution heat exchanger, the first solution circulating line and second molten The absorbent solution of conveying carries out heat exchange by solution heat exchanger in liquid circulating line, and the evaporimeter and condenser pass through work Matter pipeline connects, and the working medium in the condenser is delivered to evaporimeter by the working medium pipeline, it is characterised in that the generator Generator any one of claim 1 to 5.

7. absorption heat pump according to claim 6, it is characterised in that the condenser includes that condensing chamber, condensation are changed Hot device, condensation working medium spray equipment, condensation working medium spray piping and condensation working medium spray pump, the generator and the condenser Same container body is shared, the top of the container chamber inside body is the condensing chamber of condenser, under the container chamber inside body Portion forms the absorbent solution flash chamber of generator, and the bottom of the condensing chamber is provided with condensation working medium receiver, the condensation The second refrigerant vapor passage, the condensation working medium receiver are formed between the inwall of the outer wall of working medium receiver and the container body It is connected with working medium pipeline, in condensing chamber, the condensation working medium spray piping is located at cold for the condensation working medium spray equipment Solidifying exterior thereto, the condensing heat exchanger and condensation working medium spray pump are located on condensation working medium spray piping, the condensation working medium Spray pump by the condensation working medium in condensing chamber by condense be delivered to after the condensed heat exchanger of working medium spray piping condensation working medium spray Shower device, condensation working medium spray piping is connected with the hot-fluid side of the condensing heat exchanger, the cold flow side of cooling heat exchanger It is connected with condensation heating agent pipeline.