CN102003827B - Absorption type power and refrigeration cogeneration circulatory system and absorption type power and refrigeration cogeneration method - Google Patents
Absorption type power and refrigeration cogeneration circulatory system and absorption type power and refrigeration cogeneration method Download PDFInfo
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- CN102003827B CN102003827B CN2010105441197A CN201010544119A CN102003827B CN 102003827 B CN102003827 B CN 102003827B CN 2010105441197 A CN2010105441197 A CN 2010105441197A CN 201010544119 A CN201010544119 A CN 201010544119A CN 102003827 B CN102003827 B CN 102003827B
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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
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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
- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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Abstract
The invention discloses an absorption type power and refrigeration cogeneration circulatory system and an absorption type power and refrigeration cogeneration method. The circulatory system comprises a steam generator, a primary gas-liquid separator, a turbomachine, a secondary gas-liquid separator, a condenser, a throttling device, a refrigerating generator, an absorber, a circulating pump and a heat regenerator, wherein a heat source pipeline is arranged in the steam generator; heat sources are introduced into the heat source pipeline; the turbomachine is used for outputting power; the refrigerating generator is used for outputting refrigerating capacity; a first passage is formed between the primary gas-liquid separator and the steam generator; and a second passage is formed between the secondary gas-liquid separator and the absorber. The circulatory system also comprises an inversion passage passing through the heat regenerator to the absorber from the steam generator; and on the inversion passage, a first decompression device is connected between the heat regenerator and the absorber, and a second decompression device is connected to the second passage. By the circulatory system, various heat sources can be converted into the power and the refrigerating capacity effectively, and the utilization rate of the heat sources can be improved.
Description
Technical field
The present invention relates to thermal source and utilize the field, relate in particular to the absorption cold merit alliance circulatory system and absorption cold merit method of combined supply.
Background technology
In commercial production, in the production such as industrial products such as cement, glass, iron and steel, exist the residual heat resources of various forms and temperature grade.If these waste heats directly are discharged in the environment go, can cause the huge waste of the energy and the pollution of environment.In addition, occurring in nature also exists the renewable thermal source such as solar energy, underground heat of great deal of rich.From national energy-saving and emission-reduction angle, need recycle the residual heat resources and the renewable thermal source that produce in the commercial production.
Temperature grade according to waste heat (being also referred to as thermal source in this article); Usually thermal source is divided into three types of high temperature, middle temperature, low temperature: it is high temperature heat source that temperature is higher than 650 ℃ thermal source; The thermal source of temperature between 250～650 ℃ be in warm source, temperature is a low-temperature heat source at the thermal source below 250 ℃.For high temperature, in warm source generally adopt the generating of waste heat boiler and Turbo-generator Set to recycle, and for the low-temperature heat source that is lower than 250 ℃, mainly be used for independent heat supply, generating or separate refrigeration separately.
Low temperature heat resource power generation generally adopts organic Rankine circulation (Organic Rankine Cycle) technology and Ka Linna circulation (Kalina Cycle) technology.Lower boiling organic working media (abbreviation working medium) is adopted in the organic Rankine circulation, such as R123 cold-producing medium, R113 cold-producing medium, R245FA cold-producing medium or isopentane etc.Fig. 1 shows the sketch map of organic Rankine circulation.Its operation cycle is following: organic working medium absorbs in steam generator 101 from the heat of low-temperature heat source pipeline 102 and produces saturated or overheated organic working medium steam; This organic working medium steam gets into turbine 103 (or decompressor) acting then, and the generator 104 output generated energy through being connected with turbine 103.Organic working medium enters into condenser 105 condensation heats and forms liquid state afterwards, and the organic working medium of liquid gets into steam generator 101 after boosting through supply pump 106 again, accomplishes a complete circulation like this.
The Ka Linna circulating technology is that it makes the endothermic temperature curve of working medium and the exothermic temperature curve of thermal source reach good coupling, thereby has reduced irreversible loss with a kind of new type power circulation of ammonia water mixture as working medium.In addition, also can significantly improve efficiency of energy utilization, have special advantages aspect utilizing at combined cycle and thermal source.Fig. 2 shows the sketch map of Ka Linna circulation.After wherein the ammoniacal liquor working solution heats up through supply pump 201 pressurization and through preheater 202, get in the steam generator 203, by wherein low-temperature heat source pipeline 204 heating, evaporation and overheated after, produce overheated ammonia vapor.This overheated ammonia vapor gets into turbine 205 actings subsequently, and the generator 206 output generated energy through being connected with turbine 205.The working medium of from turbine 205, discharging is through distiller 207 coolings, and the poor ammonia solution dilution of being separated from separator 210 then is basic solution, gets in the absorber 208 and condenses; The saturated liquid that leaves absorber 208, gets into separator 210 and separates behind part process reheater 213 and distiller 207 heat temperature raisings through pump 209 pressurizations of condensing.In separator 210, isolate rich ammonia steam and poor ammonia solution.Wherein poor ammonia solution is through reheater 213 coolings, and again through throttling arrangement 211 step-downs, the working solution of discharging with dilution turbine 205 forms the basic solution of ammoniacal liquor.The rich ammonia steam that separator 210 is separated is after preheater 202 coolings; Be mixed into the ammoniacal liquor working solution with the basic solution of another part ammoniacal liquor; The cooling water that is condensed then in the device 212 is condensed into saturated liquid, after a cyclic process is accomplished in supply pump 201 pressurizations.
Fig. 3 shows the sketch map of ammonia absorption type refrigeration circulation in the prior art.The basic solution of the saturated liquid state of ammoniacal liquor that from absorber 301, flows out boosts and in heat exchanger 303, after the preheating, gets in the rectifier 304 and separate through supply pump 302.Rectifier 304 is isolated rich ammonia steam and poor ammonia solution.Wherein rich ammonia steam condenses into saturated liquid in condenser 305, and the part of this saturated liquid is back in the rectifier 304, and a part gets into and evaporates in the evaporimeter 307 to produce refrigerating capacity through after the throttling arrangement 306 throttling step-downs in addition.Absorption condensation in the poor ammonia solution entering absorber 301 after throttling arrangement 308 step-downs that separates in the rich ammonia saturated vapor that from evaporimeter 307, flows out and the rectifier 304; Form the basic solution of ammoniacal liquor; The basic solution of this ammoniacal liquor offers supply pump 302, with this continuous circulation.
For the purpose that realizes generating electricity simultaneously and freezing, a kind of absorption cold CCHP circulatory system has further been proposed in the prior art, as shown in Figure 4.This absorption cold CCHP circulatory system comprises rectifier 401, condenser 402, steam generator 403, superheater 404, turbine 405, generator 406, throttling arrangement 407, preheater 408, circulating pump 409, absorber 410, evaporimeter 411, thermal source pipeline 412, cold output channel 413, absorber cooling water pipeline 414, condenser cooling pipe 415 and thermal source.Rectifier 401 is connected with steam generator 403 with condenser 402; Steam generator 403 is connected with superheater 404, turbine 405 successively, and turbine 405 is connected with generator 406, and condenser 402 is connected with throttling arrangement 407, evaporimeter 411 successively; Absorber 410 connects turbine 405 and evaporimeter 411; Absorber 410 connects circulating pump 409, and circulating pump 409 connects preheater 408, rectifier 401 successively, forms the working medium peripheral passage.Thermal source successively through superheater 404, steam generator 403 and preheater 408, provides heat along thermal source pipeline 412.Said evaporimeter 411 is through cold output channel 413 output colds.Absorber 410 has cooling water pipeline 414, and condenser 402 has cooling water pipeline 415, through water quench ammoniacal liquor.
The operation cycle process of above-mentioned prior art is: rectifier 401 becomes rich ammonia steam and poor ammonia solution with the basic solution separating of ammonia water mixture; Poor ammonia solution is through steam generator 403, superheater 404; Form the overheated poor ammonia steam of high pressure; Get into turbine 405 actings, and by generator 406 output electric energy.Rich ammonia steam forms the wet saturated steam that hangs down mass dryness fraction through condenser 402 and throttling arrangement 407, gets into to absorb heat in the evaporimeter 411 with the output cold.Saturated rich ammonia steam and poor ammonia steam cool off in absorber 410 and form the basic solution of ammoniacal liquor, and this basic solution is saturated solution.Saturated solution is through circulating pump 409, and pressure is improved, and in preheater 408, gets into rectifier 401 then after the preheating, in rectifier 401, isolates the rich ammonia steam of high concentration and the poor ammonia solution of low concentration again.Accomplish an operation cycle like this.
The above-mentioned existing absorption cold CCHP circulatory system is the lower poor ammonia solution heating evaporation in steam generator of concentration that rectifier is separated; Overheated through superheater then, owing to be the overheated ammonia vapor that produces through absorption thermal source heat, therefore; Need the temperature of thermal source higher; For the lower thermal source of temperature, for example above-mentioned low-temperature heat source just can not use this system.The higher ammonia vapor of separating through rectifier in addition of purity passes through condenser and throttling arrangement successively, has wasted the pressure ability of ammonia vapor.
Therefore, need a kind of new absorption cold merit alliance circulatory system and absorption cold merit method of combined supply to address the above problem.
Summary of the invention
In order to overcome the deficiency of above-mentioned prior art; The present invention at first provides a kind of absorption cold merit alliance circulatory system; The said circulatory system adopts non-azeotropic solution as working media, and the said circulatory system comprises steam generator, first order gas-liquid separator, turbine, second level gas-liquid separator, condenser, throttling arrangement, refrigerating evaporator, absorber, circulating pump and the regenerator that connects into loop in order, is provided with the thermal source pipeline in the said steam generator; Thermal source feeds in the said thermal source pipeline; Said turbine is used for output mechanical power, and said refrigerating evaporator is used to export refrigerating capacity, wherein; Between said first order gas-liquid separator and said steam generator, be provided with first path; Be used for the liquid working media that said first order gas-liquid separator separates goes out is recycled to said steam generator, between said second level gas-liquid separator and said absorber, be provided with alternate path, be used for the liquid working media that said second level gas-liquid separator separates goes out is recycled to said absorber; The said circulatory system also comprises from the backward channel of said steam generator via said regenerator to said absorber; In said backward channel, be connected with first decompressor between said regenerator and the said absorber, on said alternate path, be connected with second decompressor.
Preferably, on said loop, between said regenerator and said steam generator, be connected with first blender, said first path is via said first blender to said steam generator from said first order gas-liquid separator.
Preferably, between said first decompressor and said absorber, be connected with second blender, said alternate path be from the said second level gas-liquid separator via said second decompressor and said second blender to said absorber.
Preferably, said first decompressor and said second decompressor are pressure-reducing valve.
Preferably, said throttling arrangement is a choke valve.
Preferably, said turbine drives connected generator output electric weight.
Preferably, said non-azeotropic solution is an ammonia spirit.
Preferably, the temperature of said thermal source is between 80 ℃ to 250 ℃.
The present invention also provides a kind of absorption cold merit alliance circulatory system; The said circulatory system adopts ammonia spirit as working media; It is characterized in that; The said circulatory system comprises steam generator, first order gas-liquid separator, turbine, second level gas-liquid separator, condenser, throttling arrangement, refrigerating evaporator, absorber, circulating pump and the regenerator that connects into loop in order, between said regenerator and said steam generator, is connected with first blender, to form from first path of said first order gas-liquid separator via said first blender to said steam generator; The said circulatory system also comprises from the backward channel of said steam generator via said regenerator to said absorber; In said backward channel, be connected with second blender between said regenerator and the said absorber, to form from the said second level gas-liquid separator via the alternate path of said second blender to said absorber; Between said regenerator and said second blender, be connected with first decompressor; And between said second level gas-liquid separator and said second blender, be connected with second decompressor, wherein, be provided with the thermal source pipeline in the said steam generator; Thermal source feeds in the said thermal source pipeline; Said turbine is used for power output, and to drive connected generator output electric weight, said refrigerating evaporator is used to export refrigerating capacity.
Preferably, the temperature of said thermal source is between 80 ℃ to 250 ℃.
Preferably, said throttling arrangement is a choke valve, and said first decompressor and said second decompressor are pressure-reducing valve.
The present invention provides the above-mentioned circulatory system of a kind of employing to carry out absorption cold merit method of combined supply, said method comprising the steps of: a. makes said ammonia spirit in said steam generator, absorb the heat of said thermal source and produces the ammoniacal liquor moist steam; B. said ammoniacal liquor moist steam is offered said first order gas-liquid separator, and go out first rich ammonia steam and the first liquid poor ammonia solution by said first order gas-liquid separator separates; C. said first rich ammonia steam is offered said turbine; And by said turbine expansion acting; Output mechanical power is exported electric weight to drive said generator, and the said first liquid poor ammonia solution is offered said steam generator via said first path; The rich ammonia moist steam of d. said turbine being discharged offers said second level gas-liquid separator, and goes out second rich ammonia steam and the second liquid poor ammonia solution by said second level gas-liquid separator separates; E. said second rich ammonia steam is offered said refrigerating evaporator after the decompression of said condenser condenses and said throttling arrangement,, and the said second liquid poor ammonia solution offered said absorber via said alternate path with the output refrigerating capacity; The rich ammonia steam of f. said refrigerating evaporator being discharged offers said absorber; G. unevaporated poor ammonia solution in the said steam generator is offered said absorber via said backward channel; And h. with the basic solution of the ammoniacal liquor that forms in the said absorber through said circulating pump supercharging and said regenerator preheating after offer said steam generator by said first blender.
Preferably, the temperature of said thermal source is between 80 ℃ to 250 ℃.
According to the absorption cold merit alliance circulatory system of the present invention; It (for example adopts non-azeotropic solution; Ammonia spirit) as cycle fluid; Adopt the two-stage gas-liquid separation device that thermal source is converted into merit and refrigerating capacity simultaneously, can make full use of the low-temperature heat source (such as 80 ℃-250 ℃) that prior art can not be utilized or be difficult to utilize, reclaimed low-temperature heat source effectively.In addition, according to the circulatory system of the present invention and method also made full use of cycle fluid pressure can, therefore, improved the utilization rate of thermal source.
In the summary of the invention part, introduced the notion of a series of reduced forms, this will further explain in specific embodiment part.Content part of the present invention does not also mean that key feature and the essential features that will attempt to limit technical scheme required for protection, does not more mean that the protection domain of attempting to confirm technical scheme required for protection.
Below in conjunction with accompanying drawing, specify advantage of the present invention and characteristic.
Description of drawings
Fig. 1 shows the sketch map of organic Rankine circulation of the prior art;
Fig. 2 shows the sketch map of Ka Linna circulation of the prior art;
Fig. 3 shows the sketch map of ammonia absorption type refrigeration circulation of the prior art;
Fig. 4 is the sketch map of a kind of absorption cold CCHP circulatory system in the prior art;
Fig. 5 is the sketch map according to the absorption cold merit alliance circulatory system of one embodiment of the present invention;
Fig. 6 is the flow chart that carries out absorption cold merit method of combined supply according to the circulatory system of one embodiment of the present invention.
The specific embodiment
In the description hereinafter, a large amount of concrete details have been provided so that more thorough understanding of the invention is provided.Yet, it will be apparent to one skilled in the art that the present invention can need not one or more these details and be able to enforcement.In other example,, describe for technical characterictics more well known in the art for fear of obscuring with the present invention.
In order thoroughly to understand the present invention, detailed structure will be proposed in following description.Obviously, execution of the present invention is not limited to the specific details that those skilled in the art has the knack of.Preferred embodiment of the present invention is described in detail as follows, yet except these were described in detail, the present invention can also have other embodiments.
The invention discloses a kind of absorption cold merit alliance circulatory system (hereinafter to be referred as the circulatory system), it should be noted that the direction of arrow in the following accompanying drawing shows working medium flow direction therein.
Fig. 5 is the sketch map according to the absorption cold merit alliance circulatory system 500 of one embodiment of the present invention.The circulatory system 500 adopts non-azeotropic solution as working media.Non-azeotropic point solution can be the aqueous solution of ammonia spirit, ethamine, the aqueous solution of methylamine or the mixed solution of sodium sulfocyanate and ammonia etc.Non-azeotropic point solution can also be the aqueous solution of lithium bromide, the aqueous solution of lithium chloride, the aqueous solution of lithium iodide or the aqueous solution of calcium chloride etc.Non-azeotropic point solution can also be the mixed solution of mixed solution, methyl alcohol and the zinc bromide of methyl alcohol and lithium bromide or mixed solution of methyl alcohol, lithium bromide and zinc bromide etc.In addition, non-azeotropic point solution can also be the mixed solution of organic matters such as R21, R22 and tetraethoxide dimethylether composition.
The circulatory system 500 comprises steam generator 501, first order gas-liquid separator 502, turbine 503, second level gas-liquid separator 505, condenser 506, throttling arrangement 507, refrigerating evaporator 508, absorber 509, circulating pump 510 and the regenerator 511 that connects into loop in order.Wherein, the said direction that connects in order is the flow direction of working medium in above-mentioned loop.
Be provided with thermal source pipeline 516 in the steam generator 501; Thermal source feeds in the thermal source pipeline 516, and working media is heated the back and produces steam in steam generator 501, owing to only need to produce steam; Therefore can use various thermals source, especially 80 ℃-250 ℃ low-temperature heat source.First order gas-liquid separator 502 is connected with steam generator 501, and the steam that steam generator 501 produces gets in the first order gas-liquid separator 502 and carries out gas-liquid separation.Turbine 503 is connected with first order gas-liquid separator 502, and turbine 503 utilizes the steam state working media expansion acting that receives from first order gas-liquid separator 502, and output mechanical power is with drive mechanism.For example, can be used for driving generator for electricity generation, perhaps be used for industry and drag, for example drag blower fan, compressor, pump etc.Wherein this mechanical device can be any device that needs mechanical output, for example, and generator, blower fan, compressor, pump etc.According to one embodiment of the invention, turbine 503 can with 504 coaxial connections of generator, to drive generator 504 output electric weight.In addition, between first order gas-liquid separator 502 and steam generator 501, also be provided with first path, be used for first order gas-liquid separator 502 isolated liquid working medias are recycled to steam generator 501.It is understandable that first path is not limited to the situation shown in the figure, this first path can also be for being connected directly to the path of steam generator 501 from first order gas-liquid separator 502.
Second level gas-liquid separator 505 is connected with turbine 503, is used for the working media that comes out from turbine 503 is carried out further gas-liquid separation.Wherein, gas-liquid separator 505 isolated liquid working medias in the second level can be recovered to absorber 509 through being arranged on the alternate path between second level gas-liquid separator 505 and the absorber 509.Second level gas-liquid separator 505 is isolated the steam state working media through condenser 506 condensations, after throttling arrangement 507 step-downs, in refrigerating evaporator 508, evaporates heat absorption, and externally exports refrigerating capacity through cold output channel 518.Wherein, throttling arrangement 507 can be this area device commonly used, for example, and choke valve etc.From the working media entering absorber 509 that refrigerating evaporator 508 comes out, be absorbed 519 condensations of device cooling pipe, get into then in the circulating pump 510 and boost, get in the steam generator 501 after the preheating in the regenerator 511.
The circulatory system 500 also comprises from the backward channel of steam generator 501 via regenerator 511 to absorber 509, is used for not offered absorber 509 by the working media of thermal source pipeline 516 evaporations through regenerator 511 at steam generator 501.This backward channel can realize that working media reclaims the purpose that forms circulation; In addition; Because the heating of thermal source pipeline, the temperature of the working media of this backward channel of flowing through is higher, after process regenerator 511 carries out heat exchange; Can carry out preheating to the working media that provides by circulating pump 510, therefore improve rate of energy.
In backward channel, be connected with first decompressor 513 between regenerator 511 and the absorber 509.On alternate path, be connected with second decompressor 514.First decompressor 513 and second decompressor 514 can be decompressor commonly used, for example pressure-reducing valve.First decompressor 513 and second decompressor 514 can be regulated the pressure through the working media of alternate path and backward channel inflow absorber 509, and then guarantee effectively to mix from the working media of two paths.Working media has been accomplished an operation cycle in the absorption cold merit alliance circulatory system 500 according to the present invention like this.In addition, above-mentioned parts are known by those skilled in the art, and therefore the structure to above-mentioned parts itself is not described in detail.
Preferably, on loop, between regenerator 511 and steam generator 501, be connected with first blender 512, and make first order gas-liquid separator 502 isolated liquid working medias flow into steam generator 501 via first blender 512.Promptly first path is via first blender 512 to the steam generator 501 from first order gas-liquid separator 502.First blender 512 can make from the liquid working media of first order gas-liquid separator 502 with from the working media of regenerator and evenly mix within it.
Preferably, between first decompressor 513 and absorber 509, be connected with second blender 515, and make gas-liquid separator 505 isolated liquid working medias in the second level via second pressure-reducing valve 514 and second blender, 515 inflow absorbers 509.Be alternate path be from the second level gas-liquid separator 505 via second decompressor 514 and second blender 515 to the absorber 509.Second blender 515 can make from the liquid working media of second level gas-liquid separator 505 with from the unevaporated working media of regenerator and evenly mix within it.
Because the endothermic temperature curve of ammonia spirit and the exothermic temperature curve of thermal source reach good coupling, and the ammonia spirit cost is lower, preferably adopts ammonia spirit as working media.The circulatory system of preferred implementation of the present invention will be described as working media with ammonia spirit below.
Ammonia spirit is heated the back and produces the ammoniacal liquor moist steam in steam generator 501, owing to only need to produce steam, therefore can use various thermals source, especially 80 ℃-250 ℃ low-temperature heat source.First order gas-liquid separator 502 is connected with steam generator 501, and the ammoniacal liquor moist steam that steam generator 501 produces gets in the first order gas-liquid separator 502 carries out gas-liquid separation.After 502 separation of first order gas-liquid separator, the ammoniacal liquor moist steam is separated into the first liquid poor ammonia solution and first rich ammonia steam.Turbine 503 is connected with first order gas-liquid separator 502, and turbine 503 utilizes first rich ammonia steam acting that receives from first order gas-liquid separator 502, and power output is with drive mechanism.According to one embodiment of the invention, turbine 503 can with 504 coaxial connections of generator, to drive generator 504 output electric weight.In addition, between first order gas-liquid separator 502 and steam generator 501, also be provided with first path, be used for first order gas-liquid separator 502 isolated first liquid poor ammonia solutions are recycled to steam generator 501.It is understandable that first path is not limited to the situation shown in the figure, this first path can also be for being connected directly to the path of steam generator 501 from first order gas-liquid separator 502.
Second level gas-liquid separator 505 is connected with turbine 503, and after turbine 503 actings, first rich ammonia steam forms rich ammonia moist steam.Further isolate the second liquid poor ammonia solution and second rich ammonia steam from the rich ammonia moist steam entering second level gas-liquid separator 505 that turbine 503 comes out.Wherein, the second liquid poor ammonia solution can be recovered to absorber 509 through being arranged on the alternate path between second level gas-liquid separator 505 and the absorber 509.
The circulatory system 500 also comprises from the backward channel of steam generator 501 via regenerator 511 to absorber 509, is used for not offered absorber 509 by the ammonia spirit of thermal source pipeline 516 evaporations through regenerator 511 at steam generator 501.
In backward channel, be connected with first decompressor 513 between regenerator 511 and the absorber 509.On alternate path, be connected with second decompressor 514.First decompressor 513 and second decompressor 514 can be decompressor commonly used, for example pressure-reducing valve.First decompressor 513 and second decompressor 514 can be regulated the pressure through the working media of alternate path and backward channel inflow absorber 509, and then guarantee effectively to mix from the working media of two paths.Ammonia spirit has been accomplished an operation cycle in the absorption cold merit alliance circulatory system 500 according to the present invention like this.
On loop, between regenerator 511 and steam generator 501, be connected with first blender 512, and make first order gas-liquid separator 502 isolated first liquid poor ammonia solutions flow into steam generator 501 via first blender 512.Promptly first path is via first blender 512 to the steam generator 501 from first order gas-liquid separator 502.Between first decompressor 513 and absorber 509, be connected with second blender 515, and make gas-liquid separator 505 isolated second liquid poor ammonia solutions in the second level via second pressure-reducing valve 514 and second blender, 515 inflow absorbers 509.Be alternate path be from the second level gas-liquid separator 505 via second decompressor 514 and second blender 515 to the absorber 509.The poor ammonia solution that comes out from second blender 515 and together get into from the rich ammonia steam that refrigerating evaporator 508 comes out and to be absorbed 519 coolings of device cooling pipe the absorber 509 is to form water base solution of liquid ammonia.Then, the basic solution of ammoniacal liquor gets in the circulating pump 510 and boosts, and after regenerator 511 preheatings, gets into first blender 512.In first blender 512, basic solution of this ammoniacal liquor and back the entering in the steam generator 501 of the isolated first liquid poor ammonia solution mixing from first order gas-liquid separator 502.
The circulatory system that the present invention further discloses above-mentioned preferred implementation is carried out absorption cold merit method of combined supply 600, and is as shown in Figure 6, and this method 600 may further comprise the steps:
It will be appreciated that also when mentioning " in order connect " perhaps during " connections " multiple arrangement, this " connection in order " perhaps " connection " can be directly adjacent device to be linked together, or between adjacent device, can also be connected with other device.
According to the absorption cold merit alliance circulatory system of the present invention and method; It (for example adopts non-azeotropic solution; Ammonia spirit) as cycle fluid; Adopt the two-stage gas-liquid separation device that thermal source is converted into merit and refrigerating capacity simultaneously, can make full use of the low-temperature heat source (such as 80 ℃-250 ℃) that prior art can not be utilized or be difficult to utilize, reclaimed low-temperature heat source effectively.In addition, according to the circulatory system of the present invention and method also made full use of cycle fluid pressure can, therefore, improved the utilization rate of thermal source.
The present invention is illustrated through the foregoing description, but should be understood that, the foregoing description just is used for for example and illustrative purposes, but not is intended to the present invention is limited in the described scope of embodiments.It will be appreciated by persons skilled in the art that in addition the present invention is not limited to the foregoing description, can also make more kinds of variants and modifications according to instruction of the present invention, these variants and modifications all drop in the present invention's scope required for protection.Protection scope of the present invention is defined by appended claims book and equivalent scope thereof.
Claims (13)
1. absorption cold merit alliance circulatory system; The said circulatory system adopts non-azeotropic solution as working media; It is characterized in that the said circulatory system comprises steam generator, first order gas-liquid separator, turbine, second level gas-liquid separator, condenser, throttling arrangement, refrigerating evaporator, absorber, circulating pump and the regenerator that connects into loop in order, is provided with the thermal source pipeline in the said steam generator; Thermal source feeds in the said thermal source pipeline; Said turbine is used for output mechanical power, and said refrigerating evaporator is used to export refrigerating capacity, wherein; Between said first order gas-liquid separator and said steam generator, be provided with first path; Be used for the liquid working media that said first order gas-liquid separator separates goes out is recycled to said steam generator, between said second level gas-liquid separator and said absorber, be provided with alternate path, be used for the liquid working media that said second level gas-liquid separator separates goes out is recycled to said absorber; The said circulatory system also comprises from the backward channel of said steam generator via said regenerator to said absorber; In said backward channel, be connected with first decompressor between said regenerator and the said absorber, on said alternate path, be connected with second decompressor.
2. according to the described circulatory system of claim 1; It is characterized in that; On said loop, between said regenerator and said steam generator, be connected with first blender, said first path is via said first blender to said steam generator from said first order gas-liquid separator.
3. according to the described circulatory system of claim 2; It is characterized in that; Between said first decompressor and said absorber, be connected with second blender, said alternate path be from the said second level gas-liquid separator via said second decompressor and said second blender to said absorber.
4. according to the described circulatory system of claim 3, it is characterized in that said first decompressor and said second decompressor are pressure-reducing valve.
5. according to the described circulatory system of claim 1, it is characterized in that said throttling arrangement is a choke valve.
6. according to the described circulatory system of claim 1, it is characterized in that said turbine drives connected generator output electric weight.
7. according to each described circulatory system among the claim 1-6, it is characterized in that said non-azeotropic solution is an ammonia spirit.
8. according to each described circulatory system among the claim 1-6, it is characterized in that the temperature of said thermal source is between 80 ℃ to 250 ℃.
9. absorption cold merit alliance circulatory system; The said circulatory system adopts ammonia spirit as working media, it is characterized in that the said circulatory system comprises steam generator, first order gas-liquid separator, turbine, second level gas-liquid separator, condenser, throttling arrangement, refrigerating evaporator, absorber, circulating pump and the regenerator that connects into loop in order; Between said regenerator and said steam generator, be connected with first blender; To form from first path of said first order gas-liquid separator via said first blender to said steam generator, the said circulatory system also comprises from the backward channel of said steam generator via said regenerator to said absorber, in said backward channel; Be connected with second blender between said regenerator and the said absorber; Gas-liquid separator is connected with first decompressor, and between said second level gas-liquid separator and said second blender, is connected with second decompressor via the alternate path of said second blender to said absorber between said regenerator and said second blender to form from the said second level; Wherein, Be provided with the thermal source pipeline in the said steam generator, thermal source feeds in the said thermal source pipeline, and said turbine is used for power output; To drive connected generator output electric weight, said refrigerating evaporator is used to export refrigerating capacity.
10. according to the described circulatory system of claim 9, it is characterized in that the temperature of said thermal source is between 80 ℃ to 250 ℃.
11., it is characterized in that said throttling arrangement is a choke valve according to the described circulatory system of claim 9, said first decompressor and said second decompressor are pressure-reducing valve.
12. one kind is adopted the described circulatory system of claim 9 to carry out absorption cold merit method of combined supply, said method comprising the steps of:
A. make said ammonia spirit in said steam generator, absorb the heat of said thermal source and produce the ammoniacal liquor moist steam;
B. said ammoniacal liquor moist steam is offered said first order gas-liquid separator, and go out first rich ammonia steam and the first liquid poor ammonia solution by said first order gas-liquid separator separates;
C. said first rich ammonia steam is offered said turbine; And by said turbine expansion acting; Output mechanical power is exported electric weight to drive said generator, and the said first liquid poor ammonia solution is offered said steam generator via said first path;
The rich ammonia moist steam of d. said turbine being discharged offers said second level gas-liquid separator, and goes out second rich ammonia steam and the second liquid poor ammonia solution by said second level gas-liquid separator separates;
E. said second rich ammonia steam is offered said refrigerating evaporator after the decompression of said condenser condenses and said throttling arrangement,, and the said second liquid poor ammonia solution offered said absorber via said alternate path with the output refrigerating capacity;
The rich ammonia steam of f. said refrigerating evaporator being discharged offers said absorber;
G. unevaporated poor ammonia solution in the said steam generator is offered said absorber via said backward channel; And
H. with the basic solution of the ammoniacal liquor that forms in the said absorber through said circulating pump supercharging and said regenerator preheating after offer said steam generator by said first blender.
13., it is characterized in that the temperature of said thermal source is between 80 ℃ to 250 ℃ according to the described method of claim 12.
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| CN103161528B (en) * | 2013-03-07 | 2014-12-03 | 中国科学院工程热物理研究所 | Work and coldness co-production system and method of recovering working medium effective ingredient refrigeration |
| TWI579520B (en) * | 2013-08-22 | 2017-04-21 | 財團法人工業技術研究院 | Heat exchanger, heat engine system and control method using the same |
| CN105863762B (en) * | 2015-01-20 | 2017-12-15 | 中国海洋石油总公司 | A kind of process system to be generated electricity using cold energy of liquefied natural gas and method |
| CN106352593B (en) * | 2016-08-19 | 2018-09-21 | 上海交通大学 | The ammonium hydroxide of quadruple heat recovery absorbs refrigeration and electricity generation system |
| CN106438278B (en) * | 2016-12-02 | 2019-01-22 | 开封中化换热设备有限公司 | A kind of gas compression system |
| CN107328135A (en) * | 2017-07-17 | 2017-11-07 | 南京师范大学 | Double evaporating pressure ammonia concn adjustable type power/refrigeration combined cycle power plants |
| CN107478067A (en) * | 2017-09-14 | 2017-12-15 | 思安新能源股份有限公司 | Heat recovery system |
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| CN110186214B (en) * | 2019-05-10 | 2020-07-14 | 上海交通大学 | Waste heat driven multi-mode cooling, heating and power integrated system |
| CN110953030A (en) * | 2019-11-19 | 2020-04-03 | 深圳市凯盛科技工程有限公司 | Method and device for generating electricity by using waste heat of glass kiln |
| CN113803166A (en) * | 2021-10-18 | 2021-12-17 | 西安热工研究院有限公司 | Combined cooling heating and power cogeneration coupling system based on Kalina combined cycle of gas turbine and operation method |
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| JP2000028213A (en) * | 1998-07-14 | 2000-01-28 | Sanyo Electric Co Ltd | Compression refrigeration machine |
| CN1236257C (en) * | 2003-12-19 | 2006-01-11 | 佛山市大东南电器有限公司 | Diffusion absorptive refrigeration device |
| KR100642709B1 (en) * | 2004-03-19 | 2006-11-10 | 산요덴키가부시키가이샤 | Refrigerator |
| CN101592412B (en) * | 2009-07-01 | 2011-05-18 | 东南大学 | Adjustable multi-temperature refrigeration device |
| CN201866983U (en) * | 2010-11-15 | 2011-06-15 | 西安思安新能源有限公司 | Absorption type cooling and power cogeneration type circulation system |
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