CN106640243A - Residual heat electric generating system and technology thereof, as well as power station - Google Patents
Residual heat electric generating system and technology thereof, as well as power station Download PDFInfo
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- CN106640243A CN106640243A CN201611251829.4A CN201611251829A CN106640243A CN 106640243 A CN106640243 A CN 106640243A CN 201611251829 A CN201611251829 A CN 201611251829A CN 106640243 A CN106640243 A CN 106640243A
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- cryogenic fluid
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- steam turbine
- heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
- F01K25/103—Carbon dioxide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
- F01K25/106—Ammonia
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention relates to the technical field of electric generation, in particular to a residual heat electric generating system and technology thereof, as well as a power station. The residual heat electric generating system and the technology thereof comprise a first-level low-temperature working substance memory, a first-level pressurizing pump, a hot water waste liquid high-temperature flue gas residual heat exchanger, a first-level low-temperature working substance steam turbine, a first-level low-temperature working substance condenser and a first-level coagulating pump which sequentially communicate in an end-to-end manner; a first medium is a low-temperature medium, and the boiling point of the first medium is not greater than 0 DEG C; an equipment cooling system residual heat collector and an exposed residual heat collector respectively communicate with the first-level pressurizing pump and the first-level low-temperature working substance steam turbine; and an inlet valve and an outlet valve are arranged on the hot water waste liquid high-temperature flue gas residual heat exchanger, an inlet valve and an outlet valve are arranged on the equipment cooling system residual heat collector, and an inlet valve and an outlet valve are arranged on the exposed residual heat collector. The power station comprises the residual heat electric generating system. The invention aims to provide the residual heat electric generating system and the technology thereof, as well as the power station so as to solve the technical problem that in the prior art, the heat quantity of low-temperature residual heat is greatly wasted.
Description
Technical field
The present invention relates to technical field of power generation, more particularly to a kind of afterheat generating system and its technique and power station.
Background technology
With worldwide energy scarcity, various countries are just being devoted to energy-conservation, are reducing discharging, and strive sustainable development.It is based on
Such a fact of energy scarcity, into more and more important energy striving direction, each state is all adding the problem of UTILIZATION OF VESIDUAL HEAT IN
The input of strong this respect and research, but fall behind relatively because cogeneration is particularly the technology generated electricity more than low temperature, govern entering for it
One step develops.
Waste heat is divided into high-temperature residual heat (general temperature be higher than 800 DEG C), middle temperature waste heat (general temperature is at 350 DEG C -800 DEG C),
Low temperature exhaust heat (general temperature is below 350 DEG C).The highly energy-consuming such as cement, iron and steel, ceramics of our China industry development is rapid, generation
The fast development of high, middle temperature cogeneration has been moved, the complete industry of comparison has been defined, but low-temperature cogeneration has then just been opened
Begin.
China's low temperature exhaust heat accounts for more than the 60% of total waste heat amount, afterheat generating system currently on the market, it is most of still
Generating working medium is done using water, because high temperature waste heat supply temperature is higher, the water vapor pressure of formation is higher, can effectively drive
Dynamic steam turbine acting, and then the utilization rate of the heat of high temperature waste heat can be improved；But, because low temperature exhaust heat temperature compares
Low, than relatively low, the effect of its driving steam turbine acting is bad, causes the heat of low temperature exhaust heat unrestrained in a large number for the water vapor pressure of formation
Take.
The content of the invention
It is an object of the invention to provide afterheat generating system and its technique and power station, to solve prior art in exist
Low temperature exhaust heat the technical problem that wastes in a large number of heat.
The afterheat generating system that the present invention is provided, including one-level cryogenic fluid memory, the one-level increasing that head and the tail are sequentially communicated
Press pump, hot water waste liquid high-temperature flue gas residual-heat exchanger, one-level cryogenic fluid steam turbine, one-level cryogenic fluid condenser and one-level are coagulated
Knot pump；
The first medium of the one-level cryogenic fluid memory memory storage is delivered to the heat by the one-level booster pump
Aqueous waste solution high-temperature flue gas residual-heat exchanger, the high temperature for flowing through the hot water waste liquid high-temperature flue gas residual-heat exchanger for cooling treats cold
But thing, and the one-level cryogenic fluid steam turbine is delivered to, rotated with ordering about the one-level cryogenic fluid steam turbine；
The one-level cryogenic fluid condenser is used to cool down first Jie of the one-level cryogenic fluid steam turbine output
Matter, and the first medium is delivered in the one-level cryogenic fluid memory by one-level condensation pump；
The first medium is cryogenic media, and the boiling point of the first medium is not higher than 0 DEG C；
Device cooling system waste heat has been respectively communicated between the one-level booster pump and the one-level cryogenic fluid steam turbine
Recover and exposed waste-heat recoverer；
First entrance valve is provided between the hot water waste liquid high-temperature flue gas residual-heat exchanger and the one-level booster pump,
First outlet valve is provided between the hot water waste liquid high-temperature flue gas residual-heat exchanger and the one-level cryogenic fluid steam turbine；
Second entrance valve is provided between the device cooling system waste-heat recoverer and the one-level booster pump, it is described
Second outlet valve is provided between device cooling system waste-heat recoverer and the one-level cryogenic fluid steam turbine；
The 3rd inlet valve, the exposed waste heat are provided between the exposed waste-heat recoverer and the one-level booster pump
The 3rd outlet valve is provided between recover and the one-level cryogenic fluid steam turbine.
Further, described afterheat generating system, including cryogenic fluid compressor and heat exchanger, also including three grade low-temps
Working medium steam turbine or decompressor；
The cryogenic fluid compressor, the heat exchanger, the three-level cryogenic fluid steam turbine or the decompressor, institute
State one-level cryogenic fluid condenser head and the tail and be sequentially communicated and formed closed circuit；
The cryogenic fluid compressor is used to compress the 3rd medium, and the 3rd medium is cold by the heat exchanger
But, the three-level cryogenic fluid steam turbine or the decompressor are delivered to, with order about the three-level cryogenic fluid steam turbine or
Decompressor described in person is rotated；
The one-level cryogenic fluid condenser is by coming from the three-level cryogenic fluid steam turbine or the decompressor
3rd medium of output cools down the first medium of the one-level cryogenic fluid steam turbine output, and the described 3rd is situated between
Matter is delivered to the cryogenic fluid compressor.
Further, the one-level cryogenic fluid Steam Turbine Driven connects one-level generator；
The three-level cryogenic fluid steam turbine or the decompressor drive connection three-level generator；
The first medium is carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen or freon；
3rd medium is carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen or freon；
The heat exchanger is connected to the one-level and condenses between pump and the one-level cryogenic fluid memory, for will be described
The heat energy of the 3rd medium passes to the first medium；
The one-level cryogenic fluid memory is communicated with one-level cryogenic fluid supply shelf storage, and a grade low-temp
The one-level cryogenic fluid air bleeding valve connected with the one-level cryogenic fluid condenser is provided with the top of working medium memory；
The three-level cryogenic fluid memory is communicated with three-level cryogenic fluid supply shelf storage, and three grade low-temp
The three-level cryogenic fluid air bleeding valve connected with the one-level cryogenic fluid condenser is provided with the top of working medium memory.
Further, described afterheat generating system include head and the tail be sequentially communicated two grade low-temp working medium memories, two grades
Booster pump, the one-level cryogenic fluid condenser, two grade low-temp working medium steam turbines, two grade low-temp working medium condensers and two grades of condensations
Pump；
The second medium of the two grade low-temps working medium memory memory storage is delivered to described one by the two-stage supercharging pump
Grade low-temp working medium condenser, the one-level cryogenic fluid steam turbine of the one-level cryogenic fluid condenser is flowed through for cooling
The first medium of output, and the two grade low-temps working medium steam turbine is delivered to, turned with ordering about the two grade low-temps working medium steam turbine
It is dynamic；
The two grade low-temps working medium condenser is used to cool down second Jie of the two grade low-temps working medium steam turbine output
Matter, and the second medium is delivered in the two grade low-temps working medium memory by two grades of condensation pumps；
The second medium is cryogenic media, and the boiling point of the second medium is less than the boiling point of the first medium.
Further, described afterheat generating system includes cryogenic fluid compressor and heat exchanger, also including three grade low-temps
Working medium steam turbine or decompressor；
The cryogenic fluid compressor, the heat exchanger, the three-level cryogenic fluid steam turbine or the decompressor, institute
State two grade low-temp working medium condensers head and the tail and be sequentially communicated and formed closed circuit；
The cryogenic fluid compressor is used to compress the 3rd medium, and the 3rd medium is cold by the heat exchanger
But, the three-level cryogenic fluid steam turbine or the decompressor are delivered to, with order about the three-level cryogenic fluid steam turbine or
Decompressor described in person is rotated；
The two grade low-temps working medium condenser is by coming from the three-level cryogenic fluid steam turbine or the decompressor
3rd medium of output cools down the second medium of the two grade low-temps working medium steam turbine output, and the described 3rd is situated between
Matter is delivered to the cryogenic fluid compressor.
Further, the heat exchanger is connected between two grades of condensation pumps and the two grade low-temps working medium memory,
For the heat energy of the 3rd medium to be passed into the second medium.
Further, three are connected between the three-level cryogenic fluid steam turbine or the decompressor and the heat exchanger
Grade low-temp working medium memory；
The cryogenic fluid driven compressor connects the three-level cryogenic fluid steam turbine or the decompressor.
Further, the one-level cryogenic fluid Steam Turbine Driven connects one-level generator；
The two grade low-temps working medium Steam Turbine Driven connects secondary generator；
The three-level cryogenic fluid steam turbine or the decompressor drive connection three-level generator；
The first medium is carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen or freon；
The second medium is carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen or freon；
3rd medium is carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen or freon；
The one-level cryogenic fluid memory is communicated with one-level cryogenic fluid supply shelf storage, and a grade low-temp
The one-level cryogenic fluid air bleeding valve connected with the one-level cryogenic fluid condenser is provided with the top of working medium memory；
The two grade low-temps working medium memory is communicated with two grade low-temp working medium supply shelf storage, and two grade low-temp
The two grade low-temp working medium air bleeding valves connected with the one-level cryogenic fluid condenser are provided with the top of working medium memory；
The three-level cryogenic fluid memory is communicated with three-level cryogenic fluid supply shelf storage, and three grade low-temp
The three-level cryogenic fluid air bleeding valve connected with the two grade low-temps working medium condenser is provided with the top of working medium memory.
The power generation process with waste heat that the present invention is provided, it is adaptable to described afterheat generating system, comprises the steps：
The first medium that be in a liquid state of the boiling temperature less than 0 DEG C is delivered to heat exchange from one-level cryogenic fluid memory
Device；The heat exchanger is hot water waste liquid high-temperature flue gas residual-heat exchanger, device cooling system waste-heat recoverer and exposed remaining
One or more in heat regenerator；
In hot water waste liquid high-temperature flue gas residual-heat exchanger, temperature is 30 DEG C -800 DEG C of hot water waste liquid high-temperature flue gas waste heat
Temperature drop to 5 DEG C -30 DEG C after the high temperature thing to be cooled of exchanger and first medium heat exchange, while first medium heat absorption vaporization
Afterwards temperature rises to 2 DEG C -10 DEG C, pressure rises to more than 3.5MPa and be delivered to one-level cryogenic fluid steam turbine；
In device cooling system waste-heat recoverer, temperature is 30 DEG C -300 DEG C of device cooling system waste-heat recoverer
Temperature drop to 5 DEG C -30 DEG C after high temperature thing to be cooled and first medium heat exchange, while temperature liter after first medium heat absorption vaporization
More than 3.5MPa is risen to 3 DEG C -15 DEG C, pressure and be delivered to one-level cryogenic fluid steam turbine；
In exposed waste-heat recoverer, temperature is the high temperature thing to be cooled of 20 DEG C -200 DEG C of exposed waste-heat recoverer and
Temperature drop to 5 DEG C -20 DEG C after one medium heat exchange, while temperature rises to 2 DEG C -15 DEG C, pressure after first medium heat absorption vaporization
Rise to more than 3.5MPa and be delivered to one-level cryogenic fluid steam turbine；
First medium orders about one-level cryogenic fluid steam turbine and rotates after acting, and temperature is down to less than -35 DEG C, pressure is down to
Below 0.5MPa is simultaneously delivered to one-level cryogenic fluid condenser；
First medium cooled temperature in one-level cryogenic fluid condenser is down to less than -50 DEG C, and it is low to be delivered to one-level
In warm working medium memory, circulation is formed.
The power station that the present invention is provided, including described afterheat generating system.
Afterheat generating system and its technique and power station that the present invention is provided, are cryogenic media by first medium, with energy
To air, the injury of personnel when enough preventing first medium from leaking；0 DEG C is not higher than by the boiling point of first medium, with certain journey
During hot water waste liquid high-temperature flue gas residual-heat exchanger, device cooling system waste-heat recoverer and exposed waste-heat recoverer are guaranteed on degree
The low temperature exhaust heat of one or more high temperature thing to be cooled can make to order about one-level cryogenic fluid steamer after first medium heat absorption
Machine effectively does work, can effectively convert low temperature exhaust heat heat energy；By first entrance valve to the 3rd inlet valve, first outlet
Valve to the 3rd outlet valve adjusts hot water waste liquid high-temperature flue gas residual-heat exchanger, device cooling system waste heat time to correspond to respectively
Device and exposed waste-heat recoverer are received, can adjust respectively more than hot water waste liquid high-temperature flue gas residual-heat exchanger, device cooling system
The first medium flow for flowing through and outlet pressure of heat regenerator and exposed waste-heat recoverer, to further ensure that low temperature exhaust heat
With first medium heat exchange efficiency, realize that each waste-heat recoverer output pressure realizes substantially unified purpose, to guarantee first Jie
After matter is absorbed heat in each waste-heat recoverer, the acting of one-level cryogenic fluid steam turbine can be effectively ordered about, it is low can effectively convert
Warm waste heat heat energy；By being set up in parallel hot water waste liquid high-temperature flue gas residual-heat exchanger, device cooling system waste-heat recoverer and naked
Dew waste-heat recoverer, so that the waste heat of the waste heat of different temperatures, different modes, especially low temperature exhaust heat, are handed over by different heat
Parallel operation exchanges heat energy, so that one-level cryogenic fluid steam turbine can be made effectively to do work, effectively converts low temperature exhaust heat heat energy, and then can
Reduce a large amount of wastes of low temperature exhaust heat.
Description of the drawings
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to concrete
The accompanying drawing to be used needed for embodiment or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the first pass schematic diagram of the afterheat generating system that the embodiment of the present invention one is provided；
Fig. 2 is the second procedure schematic diagram of the afterheat generating system that the embodiment of the present invention one is provided；
Fig. 3 is the 3rd schematic flow sheet of the afterheat generating system that the embodiment of the present invention one is provided；
Fig. 4 is the 4th schematic flow sheet of the afterheat generating system that the embodiment of the present invention one is provided.
Icon：101- hot water waste liquid high-temperature flue gas residual-heat exchangers；1011- device cooling system waste-heat recoverers；1012-
Exposed waste-heat recoverer；102- one-level cryogenic fluid steam turbines；103- one-level generators；104- one-level cryogenic fluid condensers；
105- one-levels condense pump；106- one-level cryogenic fluid memories；1061- one-levels cryogenic fluid feeds shelf storage；1062- mono-
Grade low-temp working medium air bleeding valve；107- one-level booster pumps；108- first entrance valves；1081- second entrance valves；1082- the 3rd
Inlet valve；109- first outlet valves；1091- second outlet valves；The outlet valves of 1092- the 3rd；The grade low-temp works of 201- bis-
Matter memory；The grade low-temp working medium of 2011- bis- feeds shelf storage；The grade low-temp working medium air bleeding valves of 2012- bis-；202- two-stage superchargings
Pump；The grade low-temp working medium steam turbines of 203- bis-；The grade low-temp working medium condensers of 204- bis-；Bis- grades of condensation pumps of 205-；Bis- grades of generatings of 206-
Machine；301- cryogenic fluid compressors；302- heat exchangers；303- three-level cryogenic fluid steam turbines；304- three-level generators；305- tri-
Grade low-temp working medium memory；3051- three-levels cryogenic fluid feeds shelf storage；3052- three-level cryogenic fluid air bleeding valves.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described enforcement
Example is a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, merely to
Be easy to description the present invention and simplify description, rather than indicate or imply indication device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Embodiment one
Referring to shown in Fig. 1-Fig. 4, a kind of afterheat generating system is present embodiments provided；Fig. 1-Fig. 4 is provided for the present embodiment
Afterheat generating system first pass schematic diagram to the 4th schematic flow sheet；Wherein, the arrow shown in Fig. 1-Fig. 4 is in pipeline
The flow direction of medium.
Referring to shown in Fig. 1-Fig. 4, the afterheat generating system that the present embodiment is provided is suitable to reclaim existing chemical plant, building materials, water
Low-quality residual heat of heat energy in mud, papermaking, printing and dyeing, weaving, sugar industry, food, the wine industry, the cooling water and refrigeration system in pharmaceutical factory, with
And washing slag water, the underground water of oil well, platoon water, steel-making, ironmaking, the waste heat of coke oven of steel rolling mill, also boiler furnace cooling water
Waste heat, boiler smoke, diesel engine vent gas, waste heat of gas turbine exhaust gas etc..
Referring to shown in Fig. 3, Fig. 4, the afterheat generating system that the present embodiment is provided includes the grade low-temp that head and the tail are sequentially communicated
Working medium memory 106, one-level booster pump 107, hot water waste liquid high-temperature flue gas residual-heat exchanger 101, one-level cryogenic fluid steam turbine
102nd, one-level cryogenic fluid condenser 104 and one-level condense pump 105, form closed circuit.
The first medium of the memory storage of one-level cryogenic fluid memory 106 is delivered to hot water waste liquid by one-level booster pump 107
High-temperature flue gas residual-heat exchanger 101, the high temperature for flowing through hot water waste liquid high-temperature flue gas residual-heat exchanger 101 for cooling is to be cooled
Thing, and one-level cryogenic fluid steam turbine 102 is delivered to, rotated with ordering about one-level cryogenic fluid steam turbine 102；Preferably, one-level
The drive connection one-level generator 103 of cryogenic fluid steam turbine 102, with to a certain extent by the friendship of hot water waste liquid high-temperature flue gas waste heat
The heat energy of the high temperature thing to be cooled of parallel operation 101 is converted into the electric energy of one-level generator 103, improve generating efficiency.Additionally, one-level is low
Warm working medium steam turbine 102 can be with other rotation apparatuses of drive connection.
Preferably, the first medium of circulation is that gas-liquid becomes phase medium in the afterheat generating system, namely first medium is at this
The conversion of gas phase and liquid phase is carried out in afterheat generating system.High temperature to make hot water waste liquid high-temperature flue gas residual-heat exchanger 101 is treated
The cooling effect of cooling thing is more preferably, it is preferable that the first medium of the memory storage of one-level cryogenic fluid memory 106 is all or part of
It is in a liquid state, first medium flows through hot water waste liquid high-temperature flue gas residual-heat exchanger 101 and carries out after heat exchange with high temperature thing to be cooled, the
It is in all or part of gaseous state that one medium heats up；Meanwhile, flow through the first medium of hot water waste liquid high-temperature flue gas residual-heat exchanger 101
It is, in all or part of gaseous state, the first of high pressure can be formed in specific environment in all or part of liquid endothermic disintergration
Medium, does work so as to order about one-level cryogenic fluid steam turbine 102.
One-level cryogenic fluid condenser 104 is used to cool down the first medium of the output of one-level cryogenic fluid steam turbine 102, and will
First medium condenses pump 105 and is delivered in one-level cryogenic fluid memory 106 by one-level；Preferably, first medium passes through one
Realize to one-level cryogenic fluid memory 106 in all or part of liquid reflux after the cooling of grade low-temp working medium condenser 104
Circulation.It will be appreciated by persons skilled in the art that after the cooling first medium of one-level cryogenic fluid condenser 104, to a certain degree
On cause vacuum in the exhaust outlet of one-level cryogenic fluid steam turbine 102 so that the heat energy quilt as much as possible contained by first medium
One-level cryogenic fluid steam turbine 102 does work.
Preferably, first medium is cryogenic media, and the boiling point of first medium is not higher than 0 DEG C；Preferably, first medium is
Inorganic Low medium.Preferably, the boiling point of first medium is less than -30 DEG C.Wherein, the memory storage of one-level cryogenic fluid memory 106
First medium for example can be for carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen or freon etc.；Certainly, one-level cryogenic fluid
The first medium of the memory storage of memory 106 can also be other cryogenic medias.Preferably, in one-level cryogenic fluid memory 106
The first medium of storage is the carbon dioxide of liquid.The boiling temperature of carbon dioxide is moderate, produces in cogeneration application process
Moderate pressure, technology application is also relatively ripe, while carbon dioxide is nontoxic, free from admixture, non-stimulated taste is quick-fried without burning
It is fried, it is not combustion-supporting.Additionally, carbon dioxide cost and price is also than relatively low, therefore become the preferred cryogenic liquid of this afterheat generating system
Working medium.
It has been respectively communicated with device cooling system waste heat between one-level booster pump 107 and one-level cryogenic fluid steam turbine 102 to return
Receive device 1011 and exposed waste-heat recoverer 1012；Can be interpreted as hot water waste liquid high-temperature flue gas residual-heat exchanger 101, set with popular
Standby cooling system waste-heat recoverer 1011 and the parallel connection of exposed waste-heat recoverer 1012 or connection side by side；One-level cryogenic fluid is stored
The first medium of the memory storage of device 106 is delivered to hot water waste liquid high-temperature flue gas residual-heat exchanger 101, is set by one-level booster pump 107
One or more in standby cooling system waste-heat recoverer 1011 and exposed waste-heat recoverer 1012, for cooling hot water is flowed through
In waste liquid high-temperature flue gas residual-heat exchanger 101, device cooling system waste-heat recoverer 1011 and exposed waste-heat recoverer 1012
One or more high temperature thing to be cooled, and one-level cryogenic fluid steam turbine 102 is delivered to, to order about one-level cryogenic fluid vapour
Turbine 102 is rotated.Exposed waste-heat recoverer 1012 can be for example the exposed waste-heat recoverers such as before converter and factory building inside
1012, to some in a large number scatter and disappear hot energy converter before and brick field stove before etc. exposed region carry out waste heat recovery, should
Equipment is generally exposed high-pressure metal pipe-line system composition, so that the first medium of pipeline inside heat absorption forms high steam.
Hot water waste liquid high-temperature flue gas residual-heat exchanger 101 is used for heat exchange hot water, high-temperature flue gas etc.；Device cooling system waste-heat recoverer
1011 are used to cool down boiler furnace, the boiler furnace in cement plant of steel mill etc..
First entrance valve is provided between hot water waste liquid high-temperature flue gas residual-heat exchanger 101 and one-level booster pump 107
108, it is provided with first outlet valve between hot water waste liquid high-temperature flue gas residual-heat exchanger 101 and one-level cryogenic fluid steam turbine 102
Door 109.
Second entrance valve 1081 is provided between device cooling system waste-heat recoverer 1011 and one-level booster pump 107,
Second outlet valve 1091 is provided between device cooling system waste-heat recoverer 1011 and one-level cryogenic fluid steam turbine 102.
The 3rd inlet valve 1082, exposed waste heat are provided between exposed waste-heat recoverer 1012 and one-level booster pump 107
The 3rd outlet valve 1092 is provided between recover 1012 and one-level cryogenic fluid steam turbine 102.By first entrance valve
108 to the 3rd inlet valves 1082, the outlet valve 1092 of first outlet valve 109 to the 3rd adjust hot water waste liquid to correspond to respectively
High-temperature flue gas residual-heat exchanger 101, device cooling system waste-heat recoverer 1011 and exposed waste-heat recoverer 1012, so that hot water
Waste liquid high-temperature flue gas residual-heat exchanger 101, device cooling system waste-heat recoverer 1011 and exposed waste-heat recoverer 1012 can be with
Work simultaneously, it is also possible to be operated respectively.
In addition, the quantity of hot water waste liquid high-temperature flue gas residual-heat exchanger 101 can be one, or it is multiple；Namely
Multiple hot water waste liquid high-temperature flue gas residual-heat exchangers 101 are disposed in parallel in one-level booster pump 107 and one-level cryogenic fluid steam turbine
Between 102.
The quantity of device cooling system waste-heat recoverer 1011 can be one, or it is multiple；Namely multiple equipment
Cooling system waste-heat recoverer 1011 is disposed in parallel between one-level booster pump 107 and one-level cryogenic fluid steam turbine 102.
The quantity of exposed waste-heat recoverer 1012 can be one, or it is multiple；Namely multiple exposed waste heat recoveries
Device 1012 is disposed in parallel between one-level booster pump 107 and one-level cryogenic fluid steam turbine 102.
Afterheat generating system described in the present embodiment, by the memory storage boiling point of one-level cryogenic fluid memory 106 0 is not higher than
DEG C first medium be delivered to hot water waste liquid high-temperature flue gas residual-heat exchanger 101, device cooling system through one-level booster pump 107
One or more in waste-heat recoverer 1011 and exposed waste-heat recoverer 1012, to cool down hot water waste liquid high-temperature flue gas are flowed through
One or more in residual-heat exchanger 101, device cooling system waste-heat recoverer 1011 and exposed waste-heat recoverer 1012
High temperature thing to be cooled, by the hot water waste liquid high-temperature flue gas residual-heat exchanger 101, and of device cooling system waste-heat recoverer 1011
One or more heat energy displacement in exposed waste-heat recoverer 1012 is to first medium；First medium absorbs heat energy rear-guard
One-level cryogenic fluid steam turbine 102 is rotated, the heat energy of first medium is converted into the whirler of one-level cryogenic fluid steam turbine 102
Tool energy；Cool down the first medium of the output of one-level cryogenic fluid steam turbine 102 by one-level cryogenic fluid condenser 104 again, and will
First medium condenses pump 105 and is delivered in one-level cryogenic fluid memory 106 by one-level, realizes circulation.
Afterheat generating system described in the present embodiment, is cryogenic media by first medium, to be prevented from first medium
To air, the injury of personnel during leakage；0 DEG C is not higher than by the boiling point of first medium, to guarantee that hot water gives up to a certain extent
In liquid high-temperature flue gas residual-heat exchanger 101, device cooling system waste-heat recoverer 1011 and exposed waste-heat recoverer 1012 one
Plant or the low temperature exhaust heat of various high temperature thing to be cooled can make to order about one-level cryogenic fluid steam turbine after first medium heat absorption
102 effectively actings, can effectively convert low temperature exhaust heat heat energy；By the inlet valve 1082 of first entrance valve 108 to the 3rd,
The outlet valve 1092 of first outlet valve 109 to the 3rd with correspond to respectively adjust hot water waste liquid high-temperature flue gas residual-heat exchanger 101,
Device cooling system waste-heat recoverer 1011 and exposed waste-heat recoverer 1012, can respectively adjust hot water waste liquid high-temperature flue gas
The first medium for flowing through of residual-heat exchanger 101, device cooling system waste-heat recoverer 1011 and exposed waste-heat recoverer 1012
Flow and outlet pressure, to further ensure that low temperature exhaust heat and first medium heat exchange efficiency, realize each waste-heat recoverer output
Pressure realizes substantially unified purpose, after guaranteeing that first medium absorbs heat in each waste-heat recoverer, can effectively order about one
Grade low-temp working medium steam turbine 102 does work, can effectively convert low temperature exhaust heat heat energy；Hot water waste liquid high temperature cigarette is set in parallel
Gas residual-heat exchanger 101, device cooling system waste-heat recoverer 1011 and exposed waste-heat recoverer 1012, so that different temperatures
The waste heat of waste heat, different modes, especially low temperature exhaust heat, exchange heat energy, so that one-level can be made low by different heat exchangers
Warm working medium steam turbine 102 effectively does work, effectively conversion low temperature exhaust heat heat energy, and then can reduce a large amount of wastes of low temperature exhaust heat.
In addition, arranging hot water waste liquid high-temperature flue gas residual-heat exchanger 101, device cooling system waste-heat recoverer in parallel
1011 and exposed waste-heat recoverer 1012, so that the waste heat of the waste heat of different temperatures, different modes passes through different heat exchangers
Heat energy is exchanged, to expand the temperature range of the system UTILIZATION OF VESIDUAL HEAT IN；By coordinating the inlet valve of first entrance valve 108 to the 3rd
1082nd, the outlet valve 1092 of first outlet valve 109 to the 3rd, can also make in theory high-temperature residual heat exchange heat with first medium,
Make first medium order about one-level cryogenic fluid steam turbine 102 effectively to do work.
In the alternative of the present embodiment, the afterheat generating system includes cryogenic fluid compressor 301 and heat exchanger
302, also including three-level cryogenic fluid steam turbine 303 or decompressor (not shown).
Cryogenic fluid compressor 301, heat exchanger 302, three-level cryogenic fluid steam turbine 303 or decompressor, a grade low-temp
The head and the tail of working medium condenser 104 are sequentially communicated and are formed closed circuit；I.e. cryogenic fluid compressor 301, heat exchanger 302, three-level are low
Warm working medium steam turbine 303 and the head and the tail of one-level cryogenic fluid condenser 104 are sequentially communicated and are formed closed circuit, or, low temperature work
Matter compressor 301, heat exchanger 302, decompressor and the head and the tail of one-level cryogenic fluid condenser 104 are sequentially communicated and are formed and loop back
Road.It is understood that cryogenic fluid compressor 301, heat exchanger 302, three-level cryogenic fluid steam turbine 303 or decompressor,
One-level cryogenic fluid condenser 104 constitutes a complete refrigeration system.
Cryogenic fluid compressor 301 is used to compress the 3rd medium, and the 3rd medium is cooled down by heat exchanger 302, conveys
To three-level cryogenic fluid steam turbine 303 or decompressor, rotated with ordering about three-level cryogenic fluid steam turbine 303 or decompressor.
Preferably, three-level cryogenic fluid steam turbine 303 or decompressor drive connection three-level generator 304, by three-level cryogenic fluid
Steam turbine 303 or decompressor rotate the electric energy that mechanical energy is converted into three-level generator 304, improve generating efficiency.Additionally, three-level
Cryogenic fluid steam turbine 303 or decompressor can be with other rotation apparatuses of drive connection.
Preferably, the 3rd medium of circulation is that gas-liquid becomes phase medium in the afterheat generating system, namely the 3rd medium is at this
The conversion of gas phase and liquid phase is carried out in afterheat generating system.To make the cooling of the first medium of one-level cryogenic fluid condenser 104
It is better, it is preferable that cryogenic fluid compressor 301 compresses the 3rd medium and the 3rd medium Jing after heat exchanger 302 is cooled down is complete
Portion or part are in a liquid state, and the 3rd medium to be flowed through and discharge pressure simultaneously after three-level cryogenic fluid steam turbine 303 or decompressor acting
In all or part of gaseous state.
In order to preferably store Jing cryogenic fluids compressor 301 compress and Jing heat exchangers 302 cooling it is all or part of
The 3rd medium being in a liquid state, is connected with three-level low between three-level cryogenic fluid steam turbine 303 or decompressor and heat exchanger 302
Warm working medium memory 305.
Wherein, the 3rd medium can be for example carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen or freon etc.；Certainly,
Three media can also be other cryogenic medias.Preferably, the 3rd medium is the cryogenic media of nitrogen or boiling point less than nitrogen.
One-level cryogenic fluid condenser 104 by come from three-level cryogenic fluid steam turbine 303 or decompressor output
The first medium of the output of the 3rd medium cooling one-level cryogenic fluid condenser 104, and the 3rd medium is delivered into cryogenic fluid pressure
Contracting machine 301, realizes circulation.
Heat exchanger 302 can pass through the heat cooling that cryogenic fluid compressor 301 is compressed cooling device the generation of the 3rd medium,
Alternatively, heat exchanger 302 is connected to one-level and condenses between pump 105 and one-level cryogenic fluid memory 106, for by the 3rd medium
Heat energy pass to first medium；The heat that i.e. the 3rd medium of the compression of cryogenic fluid compressor 301 is produced condenses pump by one-level
First medium cooling between 105 and one-level cryogenic fluid memory 106, with the structure of the simplification afterheat generating system.
In theory because one-level condenses the pressurization of pump 105, the first medium for obtaining thermal energy by heat exchanger 302 is not
Meeting reverse back is fed to one-level cryogenic fluid condenser 104.It is merely able to unidirectional flow to one-level cryogenic fluid memory 106；First is situated between
Matter is conveyed to hot water waste liquid high-temperature flue gas residual-heat exchanger 101, device cooling system waste heat recovery through one-level booster pump 107 again
One or more high temperature thing to be cooled in device 1011 and exposed waste-heat recoverer 1012 is reheated, and is produced in theory
High pressure first medium Steam Actuation one-level cryogenic fluid steam turbine 102 rotate at a high speed, so constantly circulation.
Alternatively, one-level cryogenic fluid memory 106 is communicated with one-level cryogenic fluid supply shelf storage 1061, and one
The top of grade low-temp working medium memory 106 is provided with the one-level cryogenic fluid exhaust connected with one-level cryogenic fluid condenser 104
Valve 1062.There is unavoidably in operation medium micro-leakage in system, by one-level cryogenic fluid shelf storage 1061 is fed, with
The first medium revealed in replenishment system；Shelf storage 1061 is fed by constantly changing one-level cryogenic fluid, it is low to one-level
Warm working medium memory 106 carries out supplement and the compensation of cryogenic fluid liquid, constantly to have fresh Low Temperature Liquid in guarantee system
Body working medium can be supplemented in be come.In operation memory inside there may exist substantial amounts of gas to system, especially heat exchanger 302
After being exchanged heat, first medium has the possibility of a large amount of gasifications in one-level cryogenic fluid memory 106, low by one-level
Warm working medium air bleeding valve 1062, to discharge gas that may be present in one-level cryogenic fluid memory 106, and the cryogenic gas is arranged
Put to one-level cryogenic fluid condenser 104；Pressure and temperature is all very low during the low-temperature gas discharge, can also reduce
The temperature of one-level cryogenic fluid condenser 104, is conducive to the condensation of first medium in one-level cryogenic fluid condenser 104, and then
One-level cryogenic fluid condenser 104 is ensure that to a certain extent in low-temperature condition, while also improve one-level cryogenic fluid coagulating
The effect of the condensation of vapour device 104.
Alternatively, three-level cryogenic fluid memory 305 is communicated with three-level cryogenic fluid supply shelf storage 3051, and three
The top of grade low-temp working medium memory 305 is provided with the three-level cryogenic fluid exhaust connected with one-level cryogenic fluid condenser 104
Valve 3052.There is unavoidably in operation medium micro-leakage in system, by three-level cryogenic fluid shelf storage 3051 is fed, with
The 3rd medium revealed in replenishment system；Shelf storage 3051 is fed by constantly changing three-level cryogenic fluid, it is low to three-level
Warm working medium memory 305 carries out supplement and the compensation of cryogenic fluid liquid, constantly to have fresh Low Temperature Liquid in guarantee system
Body working medium can be supplemented in be come.In operation memory inside there may exist substantial amounts of gas to system, and the 3rd medium is in three-level
The possibility of a large amount of gasifications is there is in cryogenic fluid memory 305, by three-level cryogenic fluid air bleeding valve 3052, to discharge three-level
Gas that may be present in cryogenic fluid memory 305, and by the low-temperature gas discharge to one-level cryogenic fluid condenser 104；
Pressure and temperature is all very low during the low-temperature gas discharge, can also reduce the temperature of one-level cryogenic fluid condenser 104
Degree, is conducive to the condensation of first medium in one-level cryogenic fluid condenser 104, and then ensure that a grade low-temp to a certain extent
Working medium condenser 104 is in low-temperature condition, while also improving the effect of the condensation of one-level cryogenic fluid condenser 104.
In the alternative of the present embodiment, the first medium of the output of one-level cryogenic fluid steam turbine 102 is under given conditions
Containing has very huge evaporation latent heat；Alternatively, the afterheat generating system arranges two grades of afterheat generating systems, with effectively profit
Use the heat energy.Alternatively, two grades of afterheat generating systems are two grades of cryogenic waste heat power generations.
Referring to shown in Fig. 1, Fig. 2, specifically, the afterheat generating system includes the two grade low-temp works that head and the tail are sequentially communicated
Matter memory 201, two-stage supercharging pump 202, one-level cryogenic fluid condenser 104,203, two grades of two grade low-temp working medium steam turbine are low
Warm working medium condenser 204 and two grades of condensation pumps 205, form closed circuit.
The second medium of the memory storage of two grade low-temp working medium memory 201 is delivered to a grade low-temp by two-stage supercharging pump 202
Working medium condenser 104, for cooling down the first of the one-level cryogenic fluid steam turbine 102 for flowing through one-level cryogenic fluid condenser 104
Medium, and two grade low-temp working medium steam turbines 203 are delivered to, rotated with ordering about two grade low-temp working medium steam turbines 203；Preferably, two
The drive connection secondary generator 206 of grade low-temp working medium steam turbine 203, with to a certain extent by one-level cryogenic fluid steam turbine
The evaporation latent heat energy of 102 first medium is converted into the electric energy of secondary generator 206, improve generating efficiency.Additionally, two grades low
Warm working medium steam turbine 203 can be with other rotation apparatuses of drive connection.
Preferably, the second medium of circulation is that gas-liquid becomes phase medium in the afterheat generating system, namely second medium is at this
The conversion of gas phase and liquid phase is carried out in afterheat generating system.To make the one-level cryogenic fluid vapour of one-level cryogenic fluid condenser 104
The cooling effect of the first medium of turbine 102 is more preferably, it is preferable that the second medium of the memory storage of two grade low-temp working medium memory 201
It is in a liquid state in whole or in part, second medium flows through one-level cryogenic fluid condenser 104 with one-level cryogenic fluid steam turbine 102
First medium is carried out after heat exchange, and it is in all or part of gaseous state that second medium heats up；Meanwhile, flow through one-level cryogenic fluid condensing
The second medium of device 104 is, in all or part of gaseous state, in specific environment can in all or part of liquid endothermic disintergration
The second medium of high pressure is enough formed, is done work so as to order about two grade low-temp working medium steam turbines 203.
Two grade low-temp working medium condensers 204 are used for the second medium of the cooling output of two grade low-temp working medium steam turbine 203, and will
Second medium is delivered in two grade low-temp working medium memories 201 by two grades of condensation pumps 205.Preferably, second medium passes through two
Realize to two grade low-temp working medium memories 201 in all or part of liquid reflux after the cooling of grade low-temp working medium condenser 204
Circulation.It will be appreciated by persons skilled in the art that after the cooling second medium of two grade low-temp working medium condenser 204, to a certain degree
On cause vacuum in the exhaust outlet of two grade low-temp working medium steam turbines 203 so that the heat energy quilt as much as possible contained by second medium
Two grade low-temp working medium steam turbines 203 do work.
Wherein, second medium is cryogenic media, and the boiling point of second medium is less than the boiling point of first medium, so that second is situated between
Matter cooling first medium in one-level cryogenic fluid condenser 104.Preferably, second medium is inorganic Low medium.Two grades low
The second medium of the warm memory storage of working medium memory 201 for example can be carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen or freon
Deng；Certainly, the second medium of the memory storage of two grade low-temp working medium memory 201 can also be other cryogenic medias.Preferably, two grades
The second medium of the memory storage of cryogenic fluid memory 201 is the nitrogen of liquid；Preferably, the internal memory of one-level cryogenic fluid memory 106
The first medium of storage is the carbon dioxide of liquid；Previous grade carbon-dioxide exhaust steam is condensed by liquid nitrogen, carbon dioxide is weary
Vapour carries out heat exchange contact with low temperature liquid nitrogen working medium, it will rapid condensation, while liquid nitrogen absorbs (carbon dioxide) grade low-temp work
The evaporation latent heat energy of matter condenser 104, will form gases at high pressure, and high pressure nitrogen promotes the rotation of two grade low-temp working medium steam turbine high speeds
Turn and generate electricity, the evaporation latent heat energy in carbon dioxide exhaust steam will be converted into electric energy output, and the afterheat generating system is without it
The cooling system of off-energy in his afterheat generating system, residual heat generating efficiency will be greatly improved.
Afterheat generating system described in the present embodiment, by the second medium of the memory storage of two grade low-temp working medium memory 201
One-level cryogenic fluid condenser 104 is delivered to through two-stage supercharging pump 202, to cool down one-level cryogenic fluid condenser 104 is flowed through
One-level cryogenic fluid steam turbine 102 first medium, by the heat energy in the first medium of one-level cryogenic fluid steam turbine 102
Replace to second medium；Two grade low-temp working medium steam turbines 203 are ordered about after second medium absorption heat energy to rotate, by second medium
Heat energy is converted into the rotating mechanical energy of two grade low-temp working medium steam turbine 203；Cool down two grades by two grade low-temp working medium condenser 204 again
The second medium of the output of cryogenic fluid steam turbine 203, and second medium is delivered into two grade low-temp works by two grades of condensation pumps 205
In matter memory 201, circulation is realized.This afterheat generating system is cold by the second medium in two grade low-temp working medium memories 201
But the first medium of the one-level cryogenic fluid steam turbine 102 of one-level cryogenic fluid condenser 104 is flowed through, so that second medium heat absorption
And order about two grade low-temp working medium steam turbines 203 and rotate, effectively the heat energy in first medium is converted into two grade low-temp working medium vapour
The rotating mechanical energy of turbine 203, can effectively utilize the heat energy in the first medium of the output of one-level cryogenic fluid steam turbine 102.
In the alternative of the present embodiment, the afterheat generating system includes cryogenic fluid compressor 301 and heat exchanger
302, also including three-level cryogenic fluid steam turbine 303 or decompressor (not shown).
Cryogenic fluid compressor 301, heat exchanger 302, three-level cryogenic fluid steam turbine 303 or decompressor, two grade low-temps
The head and the tail of working medium condenser 204 are sequentially communicated and are formed closed circuit；I.e. cryogenic fluid compressor 301, heat exchanger 302, three-level are low
The head and the tail of 303 and two grade low-temp working medium condenser of warm working medium steam turbine 204 are sequentially communicated and are formed closed circuit, or, low temperature work
Matter compressor 301, heat exchanger 302, decompressor and the head and the tail of two grade low-temp working medium condenser 204 are sequentially communicated and are formed and loop back
Road.It is understood that cryogenic fluid compressor 301, heat exchanger 302, three-level cryogenic fluid steam turbine 303 or decompressor,
Two grade low-temp working medium condensers 204 constitute a complete refrigeration system.
Cryogenic fluid compressor 301 is used to compress the 3rd medium, and the 3rd medium is cooled down by heat exchanger 302, conveys
To three-level cryogenic fluid steam turbine 303 or decompressor, rotated with ordering about three-level cryogenic fluid steam turbine 303 or decompressor.
Preferably, three-level cryogenic fluid steam turbine 303 or decompressor drive connection three-level generator 304, by three-level cryogenic fluid
Steam turbine 303 or decompressor rotate the electric energy that mechanical energy is converted into three-level generator 304, improve generating efficiency.Additionally, three-level
Cryogenic fluid steam turbine 303 or decompressor can be with other rotation apparatuses of drive connection.
Preferably, the 3rd medium of circulation is that gas-liquid becomes phase medium in the afterheat generating system, namely the 3rd medium is at this
The conversion of gas phase and liquid phase is carried out in afterheat generating system.To make the cooling of the second medium of two grade low-temp working medium condensers 204
It is better, it is preferable that cryogenic fluid compressor 301 compresses the 3rd medium and the 3rd medium Jing after heat exchanger 302 is cooled down is complete
Portion or part are in a liquid state, and the 3rd medium to be flowed through and discharge pressure simultaneously after three-level cryogenic fluid steam turbine 303 or decompressor acting
In all or part of gaseous state.
In order to preferably store Jing cryogenic fluids compressor 301 compress and Jing heat exchangers 302 cooling it is all or part of
The 3rd medium being in a liquid state, is connected with three-level low between three-level cryogenic fluid steam turbine 303 or decompressor and heat exchanger 302
Warm working medium memory 305.
Wherein, the 3rd medium can be for example carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen or freon etc.；Certainly,
Three media can also be other cryogenic medias.Preferably, the 3rd medium is the cryogenic media of nitrogen or boiling point less than nitrogen.
Two grade low-temp working medium condensers 204 by come from three-level cryogenic fluid steam turbine 303 or decompressor output
The second medium of the 3rd medium cooling output of two grade low-temp working medium steam turbine 203, and the 3rd medium is delivered into cryogenic fluid pressure
Contracting machine 301, realizes circulation.
Heat exchanger 302 can pass through the heat cooling that cryogenic fluid compressor 301 is compressed cooling device the generation of the 3rd medium,
Alternatively, heat exchanger 302 is connected between two grades of grade low-temp working medium memories 201 of condensation pump 205 and two, for by the 3rd medium
Heat energy pass to second medium；I.e. cryogenic fluid compressor 301 compresses the heat of the 3rd medium generation by two grades of condensation pumps
205 and two second medium coolings between grade low-temp working medium memory 201, the on the one hand knot of the simplification afterheat generating system
Structure, on the other hand reduces the loss of heat energy.
In theory due to the pressurization of two grades of condensation pumps 205, the second medium for obtaining thermal energy by heat exchanger 302 is not
Meeting reverse back is fed to two grade low-temp working medium condensers 204.It is merely able to unidirectional flow to two grade low-temp working medium memories 201；Second is situated between
Matter is conveyed to one-level cryogenic fluid condenser 104 and is reheated through two-stage supercharging pump 202 again, the high pressure for producing in theory
Two grade low-temp working medium steam turbine of second medium Steam Actuation 203 rotates at a high speed, so constantly circulation.
Alternatively, the drive connection three-level cryogenic fluid steam turbine 303 of cryogenic fluid compressor 301 or decompressor, pass through
Cryogenic fluid compressor 301 and three-level cryogenic fluid steam turbine 303, or cryogenic fluid compressor 301 is coaxial with decompressor
Arrange, so that the mechanical energy that three-level cryogenic fluid steam turbine 303 or decompressor are produced, directly drives cryogenic fluid compressor
301, save the electric energy that cryogenic fluid compressor 301 is consumed.Cryogenic fluid compressor 301 is to consume electric energy, three grade low-temp works
Matter steam turbine 303 or decompressor are output mechanical energies.The effect of three-level cryogenic fluid steam turbine 303 or decompressor, be
The pressure energy of the generation of cryogenic fluid compressor 301 is discharged, equivalent to a pressure recovery system of cryogenic fluid compressor 301
System；So as to allow pressure energy to become the mechanical energy of three-level cryogenic fluid steam turbine 303 or decompressor output in certain circumstances, reach
To a kind of energy-saving effect and purpose, while the partial vacuum low pressure that three-level cryogenic fluid steam turbine 303 or decompressor are produced is obtained,
The temperature of the 3rd medium of three-level cryogenic fluid steam turbine 303 or decompressor output is advantageously reduced, is conducive to two grade low-temps
Working medium condenser 204 cools down and realizes deep cooling.
Alternatively, one-level cryogenic fluid memory 106 is communicated with one-level cryogenic fluid supply shelf storage 1061, and one
The top of grade low-temp working medium memory 106 is provided with the one-level cryogenic fluid exhaust connected with one-level cryogenic fluid condenser 104
Valve 1062.There is unavoidably in operation medium micro-leakage in system, by one-level cryogenic fluid shelf storage 1061 is fed, with
The first medium revealed in replenishment system；Shelf storage 1061 is fed by constantly changing one-level cryogenic fluid, it is low to one-level
Warm working medium memory 106 carries out supplement and the compensation of cryogenic fluid liquid, constantly to have fresh Low Temperature Liquid in guarantee system
Body working medium can be supplemented in be come.In operation memory inside there may exist substantial amounts of gas to system, and first medium is in one-level
The possibility of a large amount of gasifications is there is in cryogenic fluid memory 106, by one-level cryogenic fluid air bleeding valve 1062, to discharge one-level
Gas that may be present in cryogenic fluid memory 106, and by the low-temperature gas discharge to one-level cryogenic fluid condenser 104；
Pressure and temperature is all very low during the low-temperature gas discharge, can also reduce the temperature of one-level cryogenic fluid condenser 104
Degree, is conducive to the condensation of first medium in one-level cryogenic fluid condenser 104, and then ensure that a grade low-temp to a certain extent
Working medium condenser 104 is in low-temperature condition, while also improving the effect of the condensation of one-level cryogenic fluid condenser 104.
Alternatively, two grade low-temp working medium memories 201 are communicated with two grade low-temp working medium supply shelf storage 2011, and two
The top of grade low-temp working medium memory 201 is provided with the two grade low-temp working medium exhaust connected with one-level cryogenic fluid condenser 104
Valve 2012.There is unavoidably in operation medium micro-leakage in system, by two grade low-temp working medium shelf storage 2011 is fed, with
The second medium revealed in replenishment system；Shelf storage 2011 is fed by constantly changing two grade low-temp working medium, it is low to two grades
Warm working medium memory 201 carries out supplement and the compensation of cryogenic fluid liquid, constantly to have fresh Low Temperature Liquid in guarantee system
Body working medium can be supplemented in be come.In operation memory inside there may exist substantial amounts of gas to system, especially heat exchanger 302
After being exchanged heat, second medium has the possibility of a large amount of gasifications in two grade low-temp working medium memories 201, low by two grades
Warm working medium air bleeding valve 2012, to discharge gas that may be present in two grade low-temp working medium memories 201, and the cryogenic gas is arranged
Put to one-level cryogenic fluid condenser 104；Pressure and temperature is all very low during the low-temperature gas discharge, can also reduce
The temperature of one-level cryogenic fluid condenser 104, is conducive to the condensation of first medium in one-level cryogenic fluid condenser 104, and then
One-level cryogenic fluid condenser 104 is ensure that to a certain extent in low-temperature condition, while also improve one-level cryogenic fluid coagulating
The effect of the condensation of vapour device 104.
Alternatively, three-level cryogenic fluid memory 305 is communicated with three-level cryogenic fluid supply shelf storage 3051, and three
The top of grade low-temp working medium memory 305 is provided with the three-level cryogenic fluid exhaust connected with two grade low-temp working medium condensers 204
Valve 3052.There is unavoidably in operation medium micro-leakage in system, by three-level cryogenic fluid shelf storage 3051 is fed, with
The 3rd medium revealed in replenishment system；Shelf storage 3051 is fed by constantly changing three-level cryogenic fluid, it is low to three-level
Warm working medium memory 305 carries out supplement and the compensation of cryogenic fluid liquid, constantly to have fresh Low Temperature Liquid in guarantee system
Body working medium can be supplemented in be come.In operation memory inside there may exist substantial amounts of gas to system, and the 3rd medium is in three-level
The possibility of a large amount of gasifications is there is in cryogenic fluid memory 305, by three-level cryogenic fluid air bleeding valve 3052, to discharge three-level
Gas that may be present in cryogenic fluid memory 305, and by the low-temperature gas discharge to two grade low-temp working medium condensers 204；
Pressure and temperature is all very low during the low-temperature gas discharge, can also reduce the temperature of two grade low-temp working medium condensers 204
Degree, is conducive to the condensation of second medium in two grade low-temp working medium condensers 204, and then ensure that two grade low-temps to a certain extent
Working medium condenser 204 is in low-temperature condition, while also improving the effect of the condensation of two grade low-temp working medium condenser 204.
For the ease of understanding the present embodiment, some physical parameters and reference data is provided below：
1st, carbon dioxide physical property：- 56.55 DEG C of boiling point, 31 DEG C of critical-temperature, critical pressure 7.39MPa, the latent heat of vaporization
347kj/kg；
15 DEG C of carbon dioxide temperature, pressure reaches 5.085Mpa；25 DEG C of temperature, pressure 6.432Mpa；31 DEG C of temperature, pressure
Reach 7.376Mpa；
2nd, the physical property of ammonia：- 33.5 DEG C of boiling point, critical pressure 11.2MPa, 132.3 DEG C of critical-temperature, heat of vaporization
1336.97kj/kg。
At present the severe basic reason of China's Energy situation is that energy consumption efficiency is low.The output effect of China's standard coal per ton
Rate just corresponds to 10.3%, the 28.6% of the U.S. of Japan.Nearly 60～65% energy conversion is waste heat in China's energy consumption of industry
Resource.At present the most country of UTILIZATION OF VESIDUAL HEAT IN is the U.S., and up to 60%, the utilization rate in Europe is 50%, Wo Menguo to its utilization rate
Family only 30%.With regard to used heat (waste heat) using present situation from the point of view of, there be very big utilization space in China.
Afterheat generating system described in the present embodiment, is suitable to reclaim existing chemical plant, building materials, cement, papermaking, printing and dyeing, spinning
Knit, sugar industry, food, the wine industry, the low-quality residual heat of heat energy in the cooling water and refrigeration system in pharmaceutical factory, and the flushing cinder of steel rolling mill
Water, the underground water of oil well, platoon water, steel-making, ironmaking, the waste heat of coke oven, also boiler furnace cooling water heat, boiler smoke,
Diesel engine vent gas, the waste heat of gas turbine exhaust gas.The heat source temperature for power plant boiler, the waste heat supply temperature ratio of generation
It is relatively low.Simultaneously as there is the presence of these low-temperature heat sources, so the system does not have combustion system, the afterheat generating system need not
Extra addition fuel, it is possible to which realization endlessly externally exports electric flux.Simultaneously because original system and equipment have this remaining
The presence of heat generating system, and unnecessary thermal energy can be switched to electric energy output, therefore the system is not only able to as enterprise
Valuable electric energy is exported with country, while some equipment significantly more efficient can also be protected not produce too high temperature damage setting
Standby, such as some instrument and meters and control device are unlikely to long-term overheat, at the same can also effective control boiler furnace temperature, it is burnt
Furnace body temperature, blast furnace temperature.Simultaneously afterheat generating system can also reduce making steel the temperature of iron-smelter body of heater neighboring area
Degree, except related electric control device can be protected, while the staff that can also protect steel-making ironmaking body of heater periphery avoids
Injured by strong converter thermal source, be operated in the people before the body of heater of steel-making ironmaking and both know about, workman is before steel-making iron-smelting furnace
Make to be to be installed with special stokehold work clothes, that strong heat of high-temperature steel nor common people are acceptable, if energy
Enough there are this cogeneration technology and equipment to be installed to stokehold, be not only able to realize cogeneration, while can also be more efficient
Protection steel-making iron-smelter body of heater before staff body by stokehold work violent thermal source injury, it is also believed that these stokeholds
The steel-making iron-smelting workers of work, also can very welcome this newest cogeneration technology.
However, the hot stokehold temperature of this steel-making iron-smelter is very difficult to stand for human body, but it is right
For generating, this temperature but be low-down.Also make steel blast furnace cooling system, although using water circulation system
System, but steel-making ironmaking and coke oven, the temperature of hot blast body of heater remains unusual height, and some regions of body of heater are still burnt logical
Red, the low-grade high-temperature-hot-water resource that body of heater is cooled into typically all is discharged into special cooling pond and is cooled down, heat energy row
In being put into air, these water coolings are transported to the cooling system of blast furnace by water pump again after getting off, so circulation, not only cause huge
Energy dissipation, while make steel iron-smelter and also needing to increase investment in land and building cooling pond and cooling device, fund input should
This says to be also not little.Simultaneously this outdoor cooling circulating water, is constantly circulated, and some dirts and scale are also easily in water pipe
Middle precipitation, reduces the cooling effect to body of heater, and the protective effect to body of heater is deteriorated.
In sum：The employing of cogeneration technology is extremely urgent, but some cogeneration technologies of application now, greatly
Part remains does generating working medium using water, by increasing waste heat boiler volume and consuming a large amount of metals, realization as much as possible
Heat-exchange power, because water vapor pressure is than relatively low, so needing to improve steam turbine structure, realizes that steam turbine can be in water vapour
The output electric flux that generates electricity is realized in the case that pressure is very low, so need to increase steam turbine volume and end flabellum, while also making
Into substantial amounts of metal material consumption.The exhaust steam that simultaneously steam turbine is discharged also needs to, through cooling system, constantly outwardly discharge
Energy and realize exhaust steam in steam turbine condense, so the generating efficiency of the cogeneration technology is nor very high, only 20%-30%
The waste heat energy of left and right is changed into electric energy output, even lower.
At present, present state-of-the-art cogeneration technology, is, using organic rankie cycle (ORC) turbine technology, to enter
Row middle-low temperature heat is comprehensively utilized and generated electricity, and this is true in the prior art using organic rankie cycle (ORC) turbine technology
Fullsized is more advanced, and generating efficiency is also all made relatively high, " Zhejiang cut into a mountain Verdichter OE. Ges.mbH " of Shenzhen A-share,
It is also at home than relatively large listed company.The screw expansion power generator of the said firm is that the whole world uniquely puts into commercialization fortune
Capable organic Rankine bottoming cycle expansion power generator, grasped core technology of cutting into a mountain maintains the leading position in global peer enterprises.Hangzhoupro
There is holding Hangzhou Zhongneng Steam Turbine Co., Ltd. of state steam turbine limited company, organic rankine cycle system waste heat to return
Receive efficiency high, simple system, it is not necessary to the corollary equipment such as port of export vacuum maintenance system, density is big, decompressor small volume etc.
Advantage.But organic working medium price is higher, the type of a general 100KW, 1 ton or so of required general environmental protection refrigerant, price
About 100,000 yuan, account for the 10% of system price.
Organic Rankine bottoming cycle (Organic Rankine Cycle, abbreviation ORC) is bright with low-boiling-point organic compound as working medium
Agree circulation, be mainly made up of waste heat boiler (or heat exchanger), turbine, condenser and the big portion of working medium pump four set.Organic working medium is being changed
Heat is absorbed from residual heat stream in hot device, the steam of tool certain pressure and temperature is generated, steam enters turbomachinery expansion work,
So as to driving generator or dragging other dynamic power machines.The steam discharged from turbine to cooling water heat release, condenses in condenser
Into liquid, finally heat exchanger is come back to by working medium pump, so constantly circulation is gone down.Propulsion to energy-saving and emission-reduction work,
Utilization to low-temperature heat sources such as industrial waste heat (hot water, deep fat, exhaust steam, low-temperature flue gas) underground heat, solar energy, all with crucial work
With.
Decompressor and the core component that heat exchanger is organic rankine cycle system, are the evaporimeter of thermal source heat exchange and a hot merit
Converting means is for screw expander.Low-pressure liquid organic working medium enters evaporimeter after working medium pump supercharging, absorbs heat and is changed into
After high pressure high temperature vapor, HTHP organic working medium steam promotes decompressor acting, produces energy output, expander outlet
Low-pressure steam enters condenser, to low-temperature heat source heat release and is condensed into liquid, and so on circulates.
Organic working medium cycle power generation system is to be different from traditional electricity generation system with water (steam) as cycle fluid, is adopted
Generating system of the organic working medium (such as R123, R245fa, R152a, chloroethanes, propane, normal butane, iso-butane) as cycle fluid
System, because organic working medium just can gasify at a lower temperature higher pressure is produced, and promotes turbine (turbine) acting, therefore
Organic working medium cycle power generation system can be in 200 DEG C or so of flue-gas temperature, and water temperature realizes there be sending out for value at 80 DEG C or so
Electricity.This technology is exactly more advanced application technology in developed country, and the enterprise that in recent years China has is absorbed by introducing,
This technology is grasped, has also had more outstanding product at home and abroad to apply.The efficiency high of organic working medium cycle power generation system, is constituted
Simply, without deoxygenation, desalination, blowdown and unrestrained drainage facility.The malleation of slightly above environment atmospheric pressure is typically in condenser,
It is not required to arrange vacuum maintenance system.Turbine intake and exhaust pressure is high, and required flow area is less, and turbine size is little, it is easy to minimize
Manufacture and design.The low advantage of management service expense.
Afterheat generating system described in the present embodiment, is had any different bright in the cogeneration and organic working medium that working medium is done using water
Agree circulation (ORC) turbine cogeneration technology, its difference one is that the cryogenic fluid for adopting is different, and the System Priority adopts nothing
The inorganic Low liquid working substance of poison, temperature is also lower, such as cryogenic liquid such as carbon dioxide, oxygen, argon, nitrogen, hydrogen, helium.
Traditional cogeneration technology, is substantially all using cooling water or air cooling system, and the evaporation contained in exhaust steam is dived
Thermal energy, in being discharged into surrounding air, loses in vain most energy, causes residual heat generating efficiency there was only 20% or so, very
To less than 20% generating efficiency；Including existing state-of-the-art in the world, organic rankie cycle (ORC) turbine cogeneration skill
Art, is also all to adopt and possess cooling system, while being typically in the malleation of slightly above environment atmospheric pressure in condenser, is adopted
Air-cooled or water-cooled, by the organic working medium exhaust steam condensation higher than environment atmospheric pressure that decompressor is discharged liquid is become, then is carried out
Recycle.Higher than environment atmospheric pressure, decompressor can not reach peak efficiency, while the high temperature exhaust steam that decompressor is discharged,
Contain substantial amounts of evaporation latent heat energy, organic rankie cycle (ORC) turbine afterheat generating system is not reclaimed, and
It is to be discharged using air cooling system or water-cooling system, the secondary thermal pollution of environment is caused, while generating efficiency is also obvious
Reduce.
Afterheat generating system described in the present embodiment, not only employs nontoxic non-stimulated taste, and does not burn without blast
Dangerous inorganic Low liquid working substance, while cryogenic liquid working cost price is cheap, while the system also set up exhaust steam diving
Heat recovery system, therefore the generating efficiency of the afterheat generating system is very high.
Traditional afterheat generating system and organic rankie cycle (ORC) turbine afterheat generating system, cogeneration sets
Standby top and periphery, are fitted with losing the cooling systems such as the air-cooled and water-cooled of thermal energy.But this cogeneration patent skill
Art is invented, and does not lose the air cooling or water-cooled of thermal energy etc. cooling system at all in systems, and the afterheat generating system is not
But without secondary thermal pollution, while generating efficiency is also very high, the generating effect of more than 60%-80% can be reached in theory
Rate.Therefore the cogeneration patented invention also will be a field technology revolution of cogeneration technology.
Simultaneously as some occasions, the amount of waste heat is very big, such as large-scale steel-making iron-smelter, coke-oven plant, power plant with
And big power station's exhaust steam residual heat carries out recovery generating, because waste heat amount is very huge, such as carbon dioxide liquid work for using
Matter is also suitable many, such as carbon dioxide exhaust steam amount that one-level low-temperature turbine is discharged, and the evaporation latent heat energy contained
All very huge, general cogeneration technology, or even organic rankie cycle (ORC) turbine cogeneration technology, all
It is to discard this part energy, using cooling water system and air cooling system, evaporation latent heat energy is discarded, its result is just
Cause the afterheat generating system whole efficiency low, generating efficiency is less than 30 percent.
Afterheat generating system described in the present embodiment, increased cogeneration dead steam recovery system, cool down a grade low-temp work
The evaporation latent heat energy contained in the first medium of the output of matter steam turbine 102, by cryogenic fluid compressor and heat exchanger, will steam
Send out latent heat energy displacement and return electricity generation system, do not discharged, so in theory the efficiency of the afterheat generating system is just very
Height.Simultaneously because the exhaust steam amount that one-level cryogenic fluid steam turbine 102 is discharged is big, and the evaporation latent heat energy contained is very huge
Greatly, in order to mitigate the operating pressure of cryogenic fluid compressor and need the energy of consumption, this afterheat generating system also add two
The relevant devices such as grade low-temp steam turbine, its objective is the evaporation latent heat energy contained in one-level exhaust steam, by two grade low-temp vapour
Turbine is changed into electric energy output, and do so can not only mitigate the operating pressure of cryogenic fluid compressor below, while may be used also
The generating efficiency overall to improve cogeneration.
In a steel plant and chemical plant, because waste heat source is different, there are afterheat of hot water, vapours waste heat, also have equipment cold
But waste heat, while waste heat supply temperature is also differed.This afterheat generating system, can using the lower cryogenic liquid working of boiling temperature
The energy in low temperature exhaust heat source is more fully absorbed, while the efficiency of cogeneration can also be improved.The afterheat generating system can
To realize high-temperature residual heat (higher than 800 DEG C), middle temperature waste heat (350 DEG C～800 DEG C), low temperature exhaust heat (less than 350 DEG C) system compatible
And cogeneration all standing, do so is not only able to fully improve the utilization rate of cogeneration, while can also compress waste heat sending out
Electric equipment and saving cogeneration construction cost.The highly energy-consumings such as large-scale steel-making iron-smelter, coke-oven plant, cement plant, ceramics are produced
Industry, has substantial amounts of afterheat of hot water, vapours waste heat, also has equipment cooling residual heat energy.(15 DEG C of carbon dioxide temperature, pressure
Power reaches 5.085Mpa；25 DEG C of temperature, pressure 6.432Mpa；31 DEG C of temperature, pressure reaches 7.376Mpa), due to carbon dioxide
15 DEG C of temperature, pressure can just reach 5.085Mpa, and we can set one 10 DEG C, the minimum of pressure 3.5Mpa, equipment
Waste heat supply temperature is high, and we just can be by control valve, conveying as much as possible some cryogenic liquid workings, if waste heat amount
Little, we just can less provide some cryogenic liquid workings, the inlet valve of first entrance valve 108 to the 3rd by control valve
1082nd, the outlet valve 1092 of first outlet valve 109 to the 3rd carries out the flow and outlet pressure of cryogenic liquid working
Adjust, while also can be overhaul of the equipments provides convenient.No matter waste heat source is liquid, gas or equipment cooling residual heat, this is remaining
Heat generating system can be tackled, while being higher than 800 DEG C regardless of waste heat supply temperature, again below 350 DEG C, the afterheat generating system is all
The method that can pass through to adjust transporting low temperature liquid working substance flow, control outlet waste heat supply temperature is less than 20 DEG C, carbon dioxide outlet
Stress control is in 5.0Mpa or so, so a set of afterheat generating system, it is possible to meet large-scale steel-making iron-smelter, coke-oven plant, water
Whole cogeneration demands of the high energy-consuming industry such as mud and ceramics factory.Due to the waste heat amount of some large-scale high energy-consuming industries it is unusual
Greatly, in order to reduce the energy ezpenditure and volume of cryogenic fluid compressor, the cogeneration possesses the main electricity generation system of two-stage, and additional one
Set pressure energy electricity generation system.
Other afterheat generating systems have been substantially all air cooling heat radiator or cooling tower, and cryogenic fluid evaporation latent heat is in vain
Waste, there is no latent heat energy-recuperation system, be all to be emitted evaporation latent heat energy by cooling water system and air cooling, no
But afterheat generating system efficiency is low, while also need investment construction to discharge the cooling system of heat energy, while also producing to air and environment
The secondary hot driving of life and thermal pollution；Afterheat generating system described in the present embodiment, not only using such as carbon dioxide, liquid nitrogen etc. more
The cryogenic fluid of low boiling temperature, while the system does not have cooling system, in cryogenic fluid latent heat energy be also essentially completely recovered and
For generating electricity, thus the thermal efficiency of the afterheat generating system at least can reach in theory 60% even more than, therefore the waste heat
Generating patented invention also will be a field technology revolution of cogeneration technology.
The present embodiment additionally provides a kind of power generation process with waste heat, it is adaptable to described afterheat generating system, including following step
Suddenly：
Boiling temperature is below about 0 DEG C of the first medium being in a liquid state and heat friendship is delivered to from one-level cryogenic fluid memory
Parallel operation；So that first medium increasing temperature and pressure in heat exchanger.The heat exchanger is hot water waste liquid high-temperature flue gas waste heat
One or more in exchanger, device cooling system waste-heat recoverer and exposed waste-heat recoverer.
In hot water waste liquid high-temperature flue gas residual-heat exchanger, temperature is 30 DEG C -800 DEG C or so of hot water waste liquid high-temperature flue gas
Temperature drop to 5 DEG C -30 DEG C or so after the high temperature thing to be cooled of residual-heat exchanger and first medium heat exchange, while first medium
Temperature rises to 2 DEG C -10 DEG C or so, pressure rises to more than 3.5MPa and be delivered to one-level cryogenic fluid steam turbine after heat absorption vaporization.
In device cooling system waste-heat recoverer, temperature is 30 DEG C -300 DEG C or so of device cooling system waste heat recovery
Temperature drop to 5 DEG C -30 DEG C or so after the high temperature thing to be cooled of device and first medium heat exchange, while first medium heat absorption vaporization
Afterwards temperature rises to 3 DEG C -15 DEG C or so, pressure rises to more than 3.5MPa and be delivered to one-level cryogenic fluid steam turbine.
In exposed waste-heat recoverer, temperature is the high temperature thing to be cooled of 20 DEG C -200 DEG C or so of exposed waste-heat recoverer
With temperature drop after first medium heat exchange to 5 DEG C -20 DEG C or so, while first medium absorbs heat, temperature rises to 2 DEG C -15 after vaporization
DEG C or so, pressure rises to more than 3.5MPa and is delivered to one-level cryogenic fluid steam turbine.
First medium orders about one-level cryogenic fluid steam turbine and rotates after acting, and temperature is down to less than about -35 DEG C, pressure is down to
About below 0.5MPa is simultaneously delivered to one-level cryogenic fluid condenser；；Namely first medium is after one-level cryogenic fluid steam turbine
Decrease temperature and pressure.
First medium cooled temperature in one-level cryogenic fluid condenser is down to less than about -50 DEG C, and is delivered to one-level
In cryogenic fluid memory, circulation is formed.
Alternatively, the second medium that be in a liquid state of the temperature less than -50 DEG C is delivered to one from two grade low-temp working medium memories
Grade low-temp working medium condenser；
In one-level cryogenic fluid condenser, temperature is the of the output of 20 DEG C -35 DEG C of one-level cryogenic fluid steam turbine
Temperature drop to 10 DEG C -20 DEG C after one medium and second medium heat exchange, while temperature rises to 5 after second medium heat absorption vaporization
DEG C -15 DEG C, pressure rises to more than 3.5MPa and is delivered to two grade low-temp working medium steam turbines；Namely second medium is in a grade low-temp work
Increasing temperature and pressure in matter condenser.
Second medium orders about two grade low-temp working medium steam turbines and rotates after acting, and temperature is down to less than about -35 DEG C, pressure is down to
About below 0.5MPa is simultaneously delivered to two grade low-temp working medium condensers；；Namely second medium is after two grade low-temp working medium steam turbines
Decrease temperature and pressure.
The second medium temperature that is cooled in two grade low-temp working medium condensers is down to less than about -50 DEG C, and is delivered to two grades
In cryogenic fluid memory, circulation is formed.
Alternatively, the medium of cryogenic fluid compressor compresses the 3rd, the 3rd medium whole or portion Jing after heat exchanger cooling
Point it is in a liquid state and temperature is down to less than about -20 DEG C, pressure is about 1MPa, and is delivered in three-level cryogenic fluid memory；
Temperature is below about -20 DEG C of the 3rd media being in a liquid state in whole or in part and conveys from three-level cryogenic fluid memory
To three-level cryogenic fluid steam turbine or decompressor；
3rd medium orders about three-level cryogenic fluid steam turbine or decompressor is rotated after acting, and temperature drop is to about -50 DEG C
Below, pressure is down to below 0.1MPa and is delivered to two grade low-temp working medium condensers；
In two grade low-temp working medium condensers, temperature is the of the output of less than -50 DEG C of two grade low-temp working medium steam turbines
Temperature drop is to less than -50 DEG C after second medium and the 3rd medium heat exchange, while all or part of vapour after the heat absorption of the 3rd medium
Change about 5 DEG C -10 DEG C of temperature rising, pressure to rise to about 0.2MPa and be delivered to cryogenic fluid compressor, form circulation.
Embodiment two
Embodiment two provides a kind of power station, and the embodiment includes the afterheat generating system described in embodiment one, implements
The technical characteristic of the afterheat generating system disclosed in example one is also applied for the embodiment, the published cogeneration system of embodiment one
The technical characteristic of system is not repeated description.
The power station that the present embodiment is provided, including described afterheat generating system.The power station for example can include many
Individual afterheat generating system.
Power station described in the present embodiment has the advantages that afterheat generating system described in embodiment one, disclosed in embodiment one
The afterheat generating system advantage here be not repeated description.
Finally it should be noted that：Various embodiments above only to illustrate technical scheme, rather than a limitation；To the greatest extent
Pipe has been described in detail with reference to foregoing embodiments to the present invention, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, either which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, do not make the essence disengaging various embodiments of the present invention technology of appropriate technical solution
The scope of scheme.
Claims (10)
1. a kind of afterheat generating system, it is characterised in that the one-level cryogenic fluid memory that is sequentially communicated including head and the tail, one-level increase
Press pump, hot water waste liquid high-temperature flue gas residual-heat exchanger, one-level cryogenic fluid steam turbine, one-level cryogenic fluid condenser and one-level are coagulated
Knot pump；
The first medium of the one-level cryogenic fluid memory memory storage is delivered to the hot water and gives up by the one-level booster pump
Liquid high-temperature flue gas residual-heat exchanger, the high temperature for flowing through the hot water waste liquid high-temperature flue gas residual-heat exchanger for cooling is to be cooled
Thing, and the one-level cryogenic fluid steam turbine is delivered to, rotated with ordering about the one-level cryogenic fluid steam turbine；
The one-level cryogenic fluid condenser is used to cool down the first medium of the one-level cryogenic fluid steam turbine output, and
The first medium is condensed into pump by the one-level to be delivered in the one-level cryogenic fluid memory；
The first medium is cryogenic media, and the boiling point of the first medium is not higher than 0 DEG C；
Device cooling system waste heat recovery has been respectively communicated between the one-level booster pump and the one-level cryogenic fluid steam turbine
Device and exposed waste-heat recoverer；
First entrance valve is provided between the hot water waste liquid high-temperature flue gas residual-heat exchanger and the one-level booster pump, it is described
First outlet valve is provided between hot water waste liquid high-temperature flue gas residual-heat exchanger and the one-level cryogenic fluid steam turbine；
Second entrance valve, the equipment are provided between the device cooling system waste-heat recoverer and the one-level booster pump
Second outlet valve is provided between cooling system waste-heat recoverer and the one-level cryogenic fluid steam turbine；
The 3rd inlet valve, the exposed waste heat recovery are provided between the exposed waste-heat recoverer and the one-level booster pump
The 3rd outlet valve is provided between device and the one-level cryogenic fluid steam turbine.
2. afterheat generating system according to claim 1, it is characterised in that including cryogenic fluid compressor and heat exchanger,
Also include three-level cryogenic fluid steam turbine or decompressor；
The cryogenic fluid compressor, the heat exchanger, the three-level cryogenic fluid steam turbine or the decompressor, described one
Grade low-temp working medium condenser head and the tail are sequentially communicated and are formed closed circuit；
The cryogenic fluid compressor is used to compress the 3rd medium, and the 3rd medium is cooled down by the heat exchanger, defeated
The three-level cryogenic fluid steam turbine or the decompressor are delivered to, to order about the three-level cryogenic fluid steam turbine or described
Decompressor is rotated；
The one-level cryogenic fluid condenser is by coming from the three-level cryogenic fluid steam turbine or decompressor output
The 3rd medium cool down the first medium of one-level cryogenic fluid steam turbine output, it is and the 3rd medium is defeated
Deliver to the cryogenic fluid compressor.
3. afterheat generating system according to claim 2, it is characterised in that the one-level cryogenic fluid Steam Turbine Driven connects
Connect one-level generator；
The three-level cryogenic fluid steam turbine or the decompressor drive connection three-level generator；
The first medium is carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen or freon；
3rd medium is carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen or freon；
The heat exchanger is connected to the one-level and condenses between pump and the one-level cryogenic fluid memory, for by the described 3rd
The heat energy of medium passes to the first medium；
The one-level cryogenic fluid memory is communicated with one-level cryogenic fluid supply shelf storage, and the one-level cryogenic fluid
The one-level cryogenic fluid air bleeding valve connected with the one-level cryogenic fluid condenser is provided with the top of memory；
The three-level cryogenic fluid memory is communicated with three-level cryogenic fluid supply shelf storage, and the three-level cryogenic fluid
The three-level cryogenic fluid air bleeding valve connected with the one-level cryogenic fluid condenser is provided with the top of memory.
4. afterheat generating system according to claim 1, it is characterised in that including the two grade low-temp works that head and the tail are sequentially communicated
Matter memory, two-stage supercharging pump, the one-level cryogenic fluid condenser, two grade low-temp working medium steam turbines, two grade low-temp working medium are coagulated
Vapour device and two grades of condensation pumps；
It is low that the second medium of the two grade low-temps working medium memory memory storage is delivered to the one-level by the two-stage supercharging pump
Warm working medium condenser, the output of the one-level cryogenic fluid steam turbine of the one-level cryogenic fluid condenser is flowed through for cooling
First medium, and be delivered to the two grade low-temps working medium steam turbine, rotated with ordering about the two grade low-temps working medium steam turbine；
The two grade low-temps working medium condenser is used to cool down the second medium of the two grade low-temps working medium steam turbine output, and
The second medium is delivered in the two grade low-temps working medium memory by two grades of condensation pumps；
The second medium is cryogenic media, and the boiling point of the second medium is less than the boiling point of the first medium.
5. afterheat generating system according to claim 4, it is characterised in that including cryogenic fluid compressor and heat exchanger,
Also include three-level cryogenic fluid steam turbine or decompressor；
The cryogenic fluid compressor, the heat exchanger, the three-level cryogenic fluid steam turbine or the decompressor, described two
Grade low-temp working medium condenser head and the tail are sequentially communicated and are formed closed circuit；
The cryogenic fluid compressor is used to compress the 3rd medium, and the 3rd medium is cooled down by the heat exchanger, defeated
The three-level cryogenic fluid steam turbine or the decompressor are delivered to, to order about the three-level cryogenic fluid steam turbine or described
Decompressor is rotated；
The two grade low-temps working medium condenser is by coming from the three-level cryogenic fluid steam turbine or decompressor output
The 3rd medium cool down the second medium of two grade low-temps working medium steam turbine output, it is and the 3rd medium is defeated
Deliver to the cryogenic fluid compressor.
6. afterheat generating system according to claim 5, it is characterised in that the heat exchanger is connected to two grades of condensations
Between pump and the two grade low-temps working medium memory, for the heat energy of the 3rd medium to be passed into the second medium.
7. the afterheat generating system according to claim 2 or 5, it is characterised in that the three-level cryogenic fluid steam turbine or
Three-level cryogenic fluid memory is connected between decompressor described in person and the heat exchanger；
The cryogenic fluid driven compressor connects the three-level cryogenic fluid steam turbine or the decompressor.
8. afterheat generating system according to claim 5, it is characterised in that the one-level cryogenic fluid Steam Turbine Driven connects
Connect one-level generator；
The two grade low-temps working medium Steam Turbine Driven connects secondary generator；
The three-level cryogenic fluid steam turbine or the decompressor drive connection three-level generator；
The first medium is carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen or freon；
The second medium is carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen or freon；
3rd medium is carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen or freon；
The one-level cryogenic fluid memory is communicated with one-level cryogenic fluid supply shelf storage, and the one-level cryogenic fluid
The one-level cryogenic fluid air bleeding valve connected with the one-level cryogenic fluid condenser is provided with the top of memory；
The two grade low-temps working medium memory is communicated with two grade low-temp working medium supply shelf storage, and the two grade low-temps working medium
The two grade low-temp working medium air bleeding valves connected with the one-level cryogenic fluid condenser are provided with the top of memory；
The three-level cryogenic fluid memory is communicated with three-level cryogenic fluid supply shelf storage, and the three-level cryogenic fluid
The three-level cryogenic fluid air bleeding valve connected with the two grade low-temps working medium condenser is provided with the top of memory.
9. a kind of power generation process with waste heat, it is adaptable to the afterheat generating system described in any one of claim 1-8, it is characterised in that
Comprise the steps：
The first medium that be in a liquid state of the boiling temperature less than 0 DEG C is delivered to heat exchanger from one-level cryogenic fluid memory；
The heat exchanger is returned for hot water waste liquid high-temperature flue gas residual-heat exchanger, device cooling system waste-heat recoverer and exposed waste heat
Receive device in one or more；
In hot water waste liquid high-temperature flue gas residual-heat exchanger, temperature is that 30 DEG C -800 DEG C of hot water waste liquid high-temperature flue gas waste heat is exchanged
Temperature drop to 5 DEG C -30 DEG C after the high temperature thing to be cooled of device and first medium heat exchange, while temperature after first medium heat absorption vaporization
Degree rises to 2 DEG C -10 DEG C, pressure rises to more than 3.5MPa and be delivered to one-level cryogenic fluid steam turbine；
In device cooling system waste-heat recoverer, temperature is the high temperature of 30 DEG C -300 DEG C of device cooling system waste-heat recoverer
Temperature drop to 5 DEG C -30 DEG C after thing to be cooled and first medium heat exchange, while temperature rises to 3 after first medium heat absorption vaporization
DEG C -15 DEG C, pressure rises to more than 3.5MPa and is delivered to one-level cryogenic fluid steam turbine；
In exposed waste-heat recoverer, temperature is that the high temperature thing to be cooled of 20 DEG C -200 DEG C of exposed waste-heat recoverer and first are situated between
Temperature drop to 5 DEG C -20 DEG C after mass heat transfer, while temperature rises to 2 DEG C -15 DEG C, pressure rises to after first medium heat absorption vaporization
More than 3.5MPa is simultaneously delivered to one-level cryogenic fluid steam turbine；
First medium order about one-level cryogenic fluid steam turbine rotate acting after, temperature be down to less than -35 DEG C, pressure be down to 0.5MPa
Below and it is delivered to one-level cryogenic fluid condenser；
First medium cooled temperature in one-level cryogenic fluid condenser is down to less than -50 DEG C, and is delivered to a grade low-temp work
In matter memory, circulation is formed.
10. a kind of power station, it is characterised in that including the afterheat generating system described in any one of claim 1-8.
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| CN107060927A (en) * | 2017-06-09 | 2017-08-18 | 翁志远 | Waste heat recycling system and its method and power station |
| CN107702432A (en) * | 2017-11-06 | 2018-02-16 | 翁志远 | Gas preparation system and the system to be generated electricity using air separation and Preparation equipment |
| CN108825320A (en) * | 2018-09-11 | 2018-11-16 | 翁志远 | A kind of cryogenic fluid electricity generation system and dynamical system |
| CN108825318A (en) * | 2018-09-20 | 2018-11-16 | 北京宏远佰思德科技有限公司 | A kind of cryogenic fluid electricity generation system and dynamical system |
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