CN107060930A - Heat energy utilization system and power station - Google Patents

Heat energy utilization system and power station Download PDF

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Publication number
CN107060930A
CN107060930A CN201710432027.1A CN201710432027A CN107060930A CN 107060930 A CN107060930 A CN 107060930A CN 201710432027 A CN201710432027 A CN 201710432027A CN 107060930 A CN107060930 A CN 107060930A
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China
Prior art keywords
cooling
heat
thermal source
medium
exchanger rig
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CN201710432027.1A
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Chinese (zh)
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翁志远
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Individual
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Individual
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Priority to CN201710432027.1A priority Critical patent/CN107060930A/en
Publication of CN107060930A publication Critical patent/CN107060930A/en
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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
    • F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
    • F01K27/02—Plants modified to use their waste heat, other than that of exhaust, e.g. engine-friction heat
    • 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
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/02—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of multiple-expansion type

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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 present invention relates to heat energy recycle technical field, more particularly to a kind of heat energy utilization system and power station.The heat energy utilization system includes cooling and utilizes pipeline and thermal source pipeline；The thermal source pipeline includes thermal source entrance, the first heat-exchanger rig and thermal source pipe outlet successively；The cooling includes the cooling that is sequentially communicated using pipeline and utilizes delivery outlet using cryogenic fluid memory, first heat-exchanger rig and cooling；First heat-exchanger rig is used to make the cooling cool down the heat source medium that the thermal source pipeline is flowed through using medium using the cooling in cryogenic fluid memory, and is conveyed to the cooling using delivery outlet discharge.The power station includes described heat energy utilization system.It is an object of the invention to provide heat energy utilization system and power station, technical problem is largely wasted to solve heat in the thermal source pipeline such as boiler flue present in prior art.

Description

Heat energy utilization system and power station
Technical field
The present invention relates to heat energy recycle technical field, more particularly to a kind of heat energy utilization system and power station.
Background technology
Chimney is one of most ancient, most important environmental control system.Simultaneously chimney be also in thermal power plant with boiler machine The matching used Architectural Equipment of group, its main function is that the flue dust in a large amount of flue gases boiler emission is guided into harmful gas High-altitude, increases dilation angle, it is to avoid local pollution is overweight；Moreover, cloud-kissing chimney is also present thermal power plant Landmark.
In the prior art, generally flue gas in boiler flue is directly discharged in air using chimney, wastes boiler smoke A large amount of heat energy of flue gas in road.
The content of the invention
It is an object of the invention to provide heat energy utilization system, to solve the thermals source such as boiler flue present in prior art Heat largely wastes technical problem in pipeline.
The present invention also aims to provide power station, to solve the thermal source pipeline such as boiler flue present in prior art Interior heat largely wastes technical problem.
The heat energy utilization system provided based on above-mentioned first purpose, the present invention, including cooling utilize pipeline and thermal source pipeline； The thermal source pipeline includes thermal source entrance, the first heat-exchanger rig and thermal source pipe outlet successively；
The cooling that the cooling includes being sequentially communicated using pipeline utilizes cryogenic fluid memory, first heat-exchanger rig Delivery outlet is utilized with cooling；
First heat-exchanger rig is used to make the cooling cool down using medium using the cooling in cryogenic fluid memory The heat source medium that the thermal source pipeline is flowed through, and the cooling is conveyed to using delivery outlet discharge.
Further, the thermal source pipeline also includes the 3rd heat-exchanger rig；
In the thermal source pipeline, from the thermal source entrance to the thermal source pipe outlet, first heat-exchanger rig, 3rd heat-exchanger rig is set gradually from high to low according to the cooling of itself is flowed through using the temperature of medium；
3rd heat-exchanger rig connects deep layer heat energy utilization pipeline；The deep layer heat energy utilization pipeline, which includes circulation, gas N number of circulation loop of liquid phase change medium；Wherein, N is the integer more than or equal to 1；
When N is 1, the 3rd heat-exchanger rig, first turbine or the one-level that first circulation loop includes being sequentially communicated from beginning to end are swollen Swollen machine, first-stage condenser and level liquid pump；
When N is the integer more than or equal to 2, N circulation loops include N-1 levels condenser, the N grades of steamers that head and the tail are sequentially communicated Machine or N grades of expanding machines, N grades of condensers and N grades of liquid pumps；The N-1 grades of condenser is used to make the N for flowing through N circulation loops Medium cools down the N-1 media of N-1 level steam turbines or N-1 grades of expanding machine outputs；
The N grades of condenser is used for the N media for cooling down N level steam turbines or N grades of expanding machine outputs；
The first medium in the first circulation loop is cryogenic liquid medium；The N media are that normal atmosphere depresses boiling Cryogenic liquid medium of the point less than 0 degree Celsius.
Further, the cooling includes cooling down using pipeline utilizes expanding machine using steam turbine or cooling；The cooling First heat-exchanger rig and the cooling are arranged on using between delivery outlet using expanding machine using steam turbine or the cooling.
Further, the thermal source pipeline also includes the second heat-exchanger rig；
In the thermal source pipeline, the cooling in second heat-exchanger rig is using medium temperature higher than the described first heat exchange dress When cooling in putting utilizes medium temperature, second heat-exchanger rig is arranged on the thermal source entrance and the described first heat exchange Between device；Cooling in second heat-exchanger rig is utilized using medium temperature less than the cooling in first heat-exchanger rig During medium temperature, first heat-exchanger rig is arranged between the thermal source entrance and second heat-exchanger rig；
The cooling is using in pipeline, and first heat-exchanger rig, the cooling are utilized using steam turbine or the cooling Expanding machine, second heat-exchanger rig and the cooling are sequentially communicated using delivery outlet；Second heat-exchanger rig, which is used to make, to flow Through the cooling thermal source pipeline output is cooled down using steam turbine or the cooling using medium using the cooling of expanding machine Heat source medium, and the cooling is conveyed to using delivery outlet discharge.
Further, the thermal source pipeline also includes the 3rd heat-exchanger rig；
In the thermal source pipeline, from the thermal source entrance to the thermal source pipe outlet, first heat-exchanger rig, Second heat-exchanger rig, the 3rd heat-exchanger rig according to flow through the cooling of itself using medium temperature from high to low successively Set；
3rd heat-exchanger rig connects deep layer heat energy utilization pipeline；The deep layer heat energy utilization pipeline, which includes circulation, gas N number of circulation loop of liquid phase change medium；Wherein, N is the integer more than or equal to 1；
When N is 1, the 3rd heat-exchanger rig, first turbine or the one-level that first circulation loop includes being sequentially communicated from beginning to end are swollen Swollen machine, first-stage condenser and level liquid pump；
When N is the integer more than or equal to 2, N circulation loops include N-1 levels condenser, the N grades of steamers that head and the tail are sequentially communicated Machine or N grades of expanding machines, N grades of condensers and N grades of liquid pumps；The N-1 grades of condenser is used to make the N for flowing through N circulation loops Medium cools down the N-1 media of N-1 level steam turbines or N-1 grades of expanding machine outputs；
The N grades of condenser is used for the N media for cooling down N level steam turbines or N grades of expanding machine outputs；
The first medium in the first circulation loop is cryogenic liquid medium；The N media are that normal atmosphere depresses boiling Cryogenic liquid medium of the point less than 0 degree Celsius.
Further, the deep layer heat energy utilization pipeline includes the refrigeration cycle that circulation has gas-liquid phase transition medium；Institute Stating refrigeration cycle includes the N grades of condensers, compressor, heat exchanger, refrigeration steam turbine or refrigeration that head and the tail are sequentially communicated Expanding machine or expansion valve；The N grades of condenser is used to make the refrigerant cooling N level steam turbines for flowing through refrigeration cycle or N The N media of level expanding machine output；The compressor is used to compress refrigerant, and the refrigerant is passed through into the heat exchange Device is cooled down, and is delivered to the refrigeration steam turbine or the refrigerating expander or the expansion valve；
And/or,
The deep layer heat energy utilization pipeline includes cooling down in line pipeline；The in line pipeline of cooling is cold including what is be sequentially communicated In line cryogenic fluid memory, the N grades of condenser and in line output end is cooled down；The N grades of condenser is used to make described cold The in line medium of cooling in line cryogenic fluid memory cools down the N of the N level steam turbines or N grades of expanding machine output Medium, and it is conveyed to the in line output end discharge of the cooling；The in line cryogenic fluid memory of cooling and the N grades of condenser Between be provided with the in line liquid pump of cooling, the in line liquid pump of cooling is used to make in the in line cryogenic fluid memory of cooling The in line medium of cooling be conveyed to the N grades of condenser；The in line cryogenic fluid memory of cooling and the in line liquid of cooling Cooling memory outlet valve is provided between body pump；The in line output end of cooling is provided with the in line valve of cooling.
Further, first heat-exchanger rig includes one or more thermal source heat exchanger；Second heat-exchanger rig Including one or more thermal source heat exchanger；
When first heat-exchanger rig includes multiple thermal source heat exchangers, multiple thermal source heat exchangers of first heat-exchanger rig It is sequentially communicated, or the two ends of multiple thermal source heat exchangers of first heat-exchanger rig are respectively communicated with；
When second heat-exchanger rig includes multiple thermal source heat exchangers, multiple thermal source heat exchangers of second heat-exchanger rig It is sequentially communicated, or the two ends of multiple thermal source heat exchangers of second heat-exchanger rig are respectively communicated with.
Further, the thermal source pipeline is provided with thermal source blower fan or thermal source compressor；The thermal source blower fan or the heat Source compressor, which is used to compress and makes in the thermal source pipeline medium be exported from the thermal source entrance to the heat source tube, to be said Mouthful；
The thermal source blower fan or the thermal source compressor be arranged on the thermal source line entry, the thermal source tube outlet, Any position between the thermal source line entry and the thermal source tube outlet.
Further, the cooling is sharp using cooling is provided between cryogenic fluid memory and first heat-exchanger rig Use liquid pump；The cooling is used to make the cooling defeated using medium using the cooling in cryogenic fluid memory using liquid pump Give first heat-exchanger rig；
The cooling utilizes low temperature using being provided with cooling between liquid pump using cryogenic fluid memory and the cooling Memory outlet valve；
The cooling includes separate first chamber and the second chamber using steam turbine or the cooling using expanding machine Room；The cooling sequentially passes through first heat-exchanger rig, described the using the cooling in cryogenic fluid memory using medium One chamber, the cooling utilize delivery outlet and the second chamber and discharged；
The cooling is water, carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen, freon, methane, ethane, third using medium Alkane, natural gas, coal gas or biogas；
Thermal source entrance connection boiler flue, seawater, air or the condenser of the thermal source pipeline；
The cooling utilizes generator using steam turbine or the cooling using the cooling of expanding machine drive connection.
The power station provided based on above-mentioned second purpose, the present invention, including described heat energy utilization system.
Beneficial effects of the present invention：
The heat energy utilization system that the present invention is provided, cools down thermal source pipeline, so that boiler flue etc. by cooling down using pipeline Heat is cooled in thermal source pipeline is collected using pipeline and then the heat energy is converted into the energy such as mechanical energy, electric energy again, can be subtracted Heat is largely wasted in few thermal source pipeline；Specifically, the cooling profit of low temperature is exported using cryogenic fluid memory by cooling down With medium, by the first heat-exchanger rig so that cooling cools down the heat source medium of thermal source pipeline using medium, to realize by cooling The heat energy of thermal source pipeline is collected using pipeline, heat in thermal source pipeline is solved and largely wastes technical problem.
The power station that the present invention is provided, including heat energy utilization system, the heat of thermal source pipeline is collected by cooling down using pipeline Can, solve heat in thermal source pipeline and largely waste technical problem.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art The accompanying drawing used required in 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, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the first pass schematic diagram for the heat energy utilization system that the embodiment of the present invention one is provided；
Fig. 2 is the second procedure schematic diagram for the heat energy utilization system that the embodiment of the present invention one is provided；
Fig. 3 is the first pass signal of the deep layer heat energy utilization pipeline for the heat energy utilization system that the embodiment of the present invention one is provided Figure；
Fig. 4 is the second procedure signal of the deep layer heat energy utilization pipeline for the heat energy utilization system that the embodiment of the present invention one is provided Figure；
Fig. 5 is the 3rd flow signal of the deep layer heat energy utilization pipeline for the heat energy utilization system that the embodiment of the present invention one is provided Figure.
Icon：601- coolings utilize cryogenic fluid memory；6011- coolings utilize cryogenic memory outlet valve；602- Cooling utilizes liquid pump；The heat-exchanger rigs of 603- first；604- coolings utilize steam turbine；The heat-exchanger rigs of 605- second；606- is cooled down Utilize generator；607- coolings utilize delivery outlet；6071- coolings utilize output valve；610- thermal source entrances；611- thermals source Pipe outlet；612- thermal source blower fans；
The heat-exchanger rigs of 101- the 3rd；102- first turbines；103- first-stage condensers；The condensation compensation exhaust of 1031- one-levels Valve；104- level liquid separators；105- one-level condenser pumps；106- one-level cryogenic fluid memories；1061- single-level memories enter Mouth valve；1062- single-level memory outlet valves；1063- single-level memories compensate air bleeding valve；107- level liquid pumps；108- One-level generator；
202- second turbines；203- secondary condensers；204- secondary liquid separators；205- B-grade condensation pumps；206- Two grade low-temp working medium memories；2061- second-level storage inlet valves；2062- second-level storage outlet valves；Bis- grades of liquid of 207- Body pump；208- secondary generators；
The level steam turbines of 302- tri-；303- three-level condensers；304- three-level liquid separators；305- three-level condenser pumps；306- Three-level cryogenic fluid memory；3061- third level storage inlet valves；3062- third level storage outlet valves；307- three-level liquid Body pump；308- three-level generators；
401- compressors；402- heat exchangers；403- refrigerant liquid separators；404- refrigeration low-temperature working medium memories；4041- Freeze memory inlet valve；4042- refrigeration memory outlet valves；405- refrigeration steam turbines；406- refrigeration and generation machines；407- Compress Inlet fluid separator；408- cools down in line cryogenic fluid memory；4081- cools down memory outlet valve；409- is cold In line liquid pump；410- cools down in line valve；
501- heat exchange air bleeding valves；502- circulation loop drain valves.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation Example is a part of embodiment of the invention, rather than whole embodiments.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 the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ", The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to Be easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation, With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ", " the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can To be mechanical connection or electrical connection；Can be joined directly together, can also 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. 5, a kind of heat energy utilization system is present embodiments provided；Fig. 1, Fig. 2 provide for the present embodiment Heat energy utilization system two schematic flow sheets；Fig. 3-Fig. 5 shows for the first pass of the present embodiment deep layer heat energy utilization pipeline It is intended to the 3rd schematic flow sheet；The deep layer heat energy utilization pipeline that the 3rd heat-exchanger rig 101 is connected in Fig. 1, Fig. 2 is not shown.
Referring to shown in Fig. 1, Fig. 2, the heat energy utilization system that the present embodiment is provided, including cooling utilize pipeline and heat source tube Road；Thermal source pipeline includes thermal source entrance 610, the first heat-exchanger rig 603 and thermal source pipe outlet 611 successively；Alternatively, it is hot The connection of thermal source entrance 610 boiler flue, seawater, air or the condenser on source capsule road；Preferably, thermal source pipeline is boiler Flue, effectively to utilize a large amount of heat energy of flue gas in boiler flue by heat energy utilization system.
The cooling that cool down includes being sequentially communicated using pipeline utilizes cryogenic fluid memory 601, the and of the first heat-exchanger rig 603 Cooling utilizes delivery outlet 607.
First heat-exchanger rig 603 is used to make cooling cool down heat using medium using the cooling in cryogenic fluid memory 601 The heat source medium that source capsule road is flowed through, and be conveyed to cooling discharged using delivery outlet 607.
Heat energy utilization system described in the present embodiment, cools down thermal source pipeline, so that boiler flue by cooling down using pipeline Collected using pipeline and then the heat energy is converted into the energy such as mechanical energy, electric energy again Deng heat in thermal source pipeline is cooled, can be with Heat in thermal source pipeline is reduced largely to waste；Specifically, the cold of low temperature is exported using cryogenic fluid memory 601 by cooling down But medium is utilized, it is logical to realize by the first heat-exchanger rig 603 so that cooling cools down the heat source medium of thermal source pipeline using medium The heat energy of thermal source pipeline is collected in supercooling using pipeline, is solved heat in thermal source pipeline and is largely wasted technical problem.
Referring to shown in Fig. 1, Fig. 2, in the alternative of the present embodiment, cooling utilizes steam turbine using pipeline including cooling 604 or cooling utilize expanding machine；Cooling is arranged on the He of the first heat-exchanger rig 603 using steam turbine 604 or cooling using expanding machine Cooling is using between delivery outlet 607.In specific environment, cooling utilizes medium using the cooling in cryogenic fluid memory 601 By the first heat-exchanger rig 603 and thermal source pipeline heat-shift and high pressure can be formed, so as to drive cooling to utilize steamer The heat energy of thermal source pipeline is converted into rotating mechanical energy by machine 604 or cooling using expanding machine acting.Alternatively, cooling utilizes vapour Turbine 604 or cooling utilize generator 606 using the cooling of expanding machine drive connection, with to a certain extent by the heat of thermal source pipeline The heat energy of source medium is converted into electric energy of the cooling using generator 606, improves generating efficiency.In addition, cooling utilizes steam turbine 604 Or cooling can be with other rotation apparatuses of drive connection using expanding machine.
Alternatively, cooling includes separate first chamber and second using steam turbine 604 or cooling using expanding machine Chamber；Cooling sequentially passes through the first heat-exchanger rig 603, the first chamber using the cooling in cryogenic fluid memory 601 using medium Room, cool down and using delivery outlet 607 and second chamber and discharge；By first chamber and second chamber, so that cooling utilizes medium Drive cooling using steam turbine 604 or cooling using expanding machine acting twice, improve cooling using steam turbine 604 or cooling profit With the efficiency of expanding machine, the efficiency of the heat energy conversion of thermal source pipeline is also improved.
Referring to shown in Fig. 1, Fig. 2, in the alternative of the present embodiment, cooling utilizes cryogenic fluid memory 601 and first Cooling is provided between heat-exchanger rig 603 and utilizes liquid pump 602；Cooling utilize liquid pump 602 be used for make cool down utilization low temperature work Cooling in matter memory 601 is conveyed to the first heat-exchanger rig 603 using medium；By cool down utilize liquid pump 602, be easy to by Cooling is conveyed to the first heat-exchanger rig 603 using the cooling in cryogenic fluid memory 601 using medium.
Alternatively, cooling is utilized using cryogenic fluid memory 601 and cooling using cooling is provided between liquid pump 602 Cryogenic memory outlet valve 6011；By cooling down using cryogenic memory outlet valve 6011, it is easy to control cooling to utilize low The break-make of the warm output pipe of working medium memory 601.
Alternatively, cooling is provided with cooling using delivery outlet 607 and utilizes output valve 6071.
Alternatively, cooling is inorganic Low medium or organic cryogenic media using medium.Alternatively, cooling utilizes medium Boiling point be higher or lower than 0 DEG C (at one atm).Wherein, cooling using medium for example can for water, carbon dioxide, Ammonia, helium, hydrogen, oxygen, argon, nitrogen, freon, methane, ethane, propane, natural gas, coal gas or biogas etc.；Certainly, cooling utilizes Jie Matter can also be other cryogenic medias.
In the alternative of the present embodiment, thermal source pipeline also includes the second heat-exchanger rig 605.
In thermal source pipeline, the cooling in the second heat-exchanger rig 605 is using medium temperature higher than in the first heat-exchanger rig 603 When cooling is using medium temperature, the second heat-exchanger rig 605 is arranged between the heat-exchanger rig 603 of thermal source entrance 610 and first； When cooling in second heat-exchanger rig 605 utilizes medium temperature using medium temperature less than the cooling in the first heat-exchanger rig 603, First heat-exchanger rig 603 is arranged between the heat-exchanger rig 605 of thermal source entrance 610 and second；That is, from thermal source entrance 610 to thermal source pipe outlet 611, and the first heat-exchanger rig 603, the second heat-exchanger rig 605 utilize Jie according to the cooling of itself is flowed through The temperature of matter is set gradually from high to low.
Cooling is using in pipeline, and the first heat-exchanger rig 603, cooling utilize expanding machine, second using steam turbine 604 or cooling Heat-exchanger rig 605 and cooling are sequentially communicated using delivery outlet 607；Second heat-exchanger rig 605 flows through cooling for order and utilizes steamer Machine 604 or cooling cool down the heat source medium of thermal source pipeline output using medium using the cooling of expanding machine, and are conveyed to cooling profit Discharged with delivery outlet 607.By the second heat-exchanger rig 605, further to exchange the heat energy in heat source tube road.
Alternatively, the first heat-exchanger rig 603 includes one or more thermal source heat exchanger；Second heat-exchanger rig 605 includes One or more thermal source heat exchanger.
When first heat-exchanger rig 603 includes multiple thermal source heat exchangers, multiple thermal source heat exchangers of the first heat-exchanger rig 603 according to Secondary connection, or the two ends of multiple thermal source heat exchangers of the first heat-exchanger rig 603 are respectively communicated with；Namely can be understood as multiple heat Source heat exchanger is connected in series or in parallel.Multiple thermal source heat exchangers are set by the first heat-exchanger rig 603, to improve the first heat exchange The area of the heat exchange of device 603, and improve the efficiency of the heat exchange of the first heat-exchanger rig 603.
When second heat-exchanger rig 605 includes multiple thermal source heat exchangers, multiple thermal source heat exchangers of the second heat-exchanger rig 605 according to Secondary connection, or the two ends of multiple thermal source heat exchangers of the second heat-exchanger rig 605 are respectively communicated with；Namely can be understood as multiple heat Source heat exchanger is connected in series or in parallel.Multiple thermal source heat exchangers are set by the second heat-exchanger rig 605, to improve the second heat exchange The area of the heat exchange of device 605, and improve the efficiency of the heat exchange of the second heat-exchanger rig 605.
In the alternative of the present embodiment, thermal source pipeline includes the 3rd heat-exchanger rig 101.
In thermal source pipeline, from thermal source entrance 610 to thermal source pipe outlet 611, the first heat-exchanger rig the 603, the 3rd is changed Thermal is set gradually from high to low according to the cooling of itself is flowed through using the temperature of medium；That is, flowing through the first heat-exchanger rig When 603 cooling is higher than the temperature cooled down using medium for flowing through the 3rd heat-exchanger rig using the temperature of medium, thermal source pipeline enters The 610, first heat-exchanger rig 603 of mouth, the 3rd heat-exchanger rig 101, thermal source pipe outlet 611 are set gradually.
Or, in thermal source pipeline, from thermal source entrance 610 to thermal source pipe outlet 611, the first heat-exchanger rig 603, Two heat-exchanger rigs 605, the 3rd heat-exchanger rig 101 are set successively from high to low according to the cooling of itself is flowed through using the temperature of medium Put.It is shown that the cooling for flowing through the 3rd heat-exchanger rig 101 is filled using the temperature of medium higher than the second heat exchange is flowed through in Fig. 1, Fig. 2 The temperature of 605 cooling using medium is put, the cooling of the second heat-exchanger rig 605 is flowed through using the temperature of medium higher than flowing through first The cooling of heat-exchanger rig 603 utilizes the temperature of medium, namely the heat exchange of thermal source entrance 610, the 3rd heat-exchanger rig 101, second Device 605, the first heat-exchanger rig 603, thermal source pipe outlet 611 are set gradually.
Wherein, the 3rd heat-exchanger rig 101 connection deep layer heat energy utilization pipeline；Alternatively, referring to shown in Fig. 3-Fig. 5, deep layer Heat energy utilization pipeline includes N number of circulation loop that circulation has gas-liquid phase transition medium；Wherein, N is the integer more than or equal to 1；Wherein, N for example can be 1,2,3,4,5 etc..
N be 1 when, first circulation loop include head and the tail be sequentially communicated the 3rd heat-exchanger rig 101, first turbine 102 or One-stage expansion machine, first-stage condenser 103 and level liquid pump 107；Alternatively, the first medium in first circulation loop is liquid phase Become medium.Alternatively, the first medium for flowing through first-stage condenser 103 is delivered to the 3rd heat-exchanger rig by level liquid pump 107 101, first medium with the waste heat of the 3rd heat-exchanger rig 101 after carrying out heat exchange, and first medium heating is in all or part of Gaseous state, namely first medium are in all or part of gaseous state in all or part of liquid endothermic disintergration.In specific environment, First medium can form high pressure, so as to drive first turbine 102 or one-stage expansion machine to do work.Alternatively, one-level vapour Turbine 102 or one-stage expansion machine drive connection one-level generator 108, with to a certain extent by the 3rd heat-exchanger rig more than 101 Heat energy is converted into the electric energy of one-level generator 108, improves generating efficiency.In addition, first turbine 102 or one-stage expansion machine are also Can be with other rotation apparatuses of drive connection.Alternatively, the first medium in first circulation loop is the low temperature that boiling point is less than 0 degree Celsius Liquid medium；First circulation loop is less than the cryogenic liquid meson of zero degrees celsius using boiling temperature (under an atmospheric pressure), presses Isentropic Compression, isobaric heating, constant entropy expansion, isobaric condensation are completed according to Rankine cycle theory.
When N is the integer more than or equal to 2, N circulation loops include N-1 levels condenser, the N grades of steamers that head and the tail are sequentially communicated Machine or N grades of expanding machines, N grades of condensers and N grades of liquid pumps.N-1 grades of condensers are used to make the N media for flowing through N circulation loops Cool down the N-1 media of N-1 level steam turbines or N-1 grades of expanding machine outputs.Alternatively, N grades of liquid pumps will flow through N grades of condensers N media are delivered to N-1 grades of condensers, in N-1 grades of condensers, and N media and N-1 media carry out heat exchange, and N-1 is situated between Matter cooling be in all or part of liquid, namely N-1 media in all or part of gaseous state exothermic conversion be in all or Operative liquid, N media heating is in all or part of gaseous state, namely N media are in all or part of liquid endothermic disintergration For in all or part of gaseous state.In specific environment, N media can form high pressure, so as to drive N level steam turbines or N grades of expanding machine actings.Alternatively, N grades of generators of N level steam turbines or N grades of expanding machine drive connections, will flow to a certain extent The heat energy of N-1 media through N-1 grades of condensers is converted into the electric energy of N grades of generators, improves generating efficiency.In addition, N grades of steamers Machine or N grades of expanding machines can be with other rotation apparatuses of drive connection.Alternatively, the N media of N circulation loops are less than for boiling point 0 degree Celsius of cryogenic liquid medium；N circulation loops are less than the low temperature of zero degrees celsius using boiling temperature (under an atmospheric pressure) Liquid meson, isentropic Compression, isobaric heating, constant entropy expansion, isobaric condensation are completed according to Rankine cycle theory.
N grades of condensers are used for the N media for cooling down N level steam turbines or N grades of expanding machine outputs.That is, the system includes one During individual circulation loop, first-stage condenser is used for the first medium for cooling down first turbine or the output of one-stage expansion machine；The system bag When including two circulation loops, secondary condenser is used for the second medium for cooling down second turbine or the output of compound expansion machine.
Alternatively, first medium is inorganic Low medium or organic cryogenic media.Alternatively, the boiling point of first medium is high In or less than 0 DEG C (at one atm).Wherein, first medium for example can for water, carbon dioxide, ammonia, helium, hydrogen, oxygen, Argon, nitrogen, freon, methane, ethane, propane, natural gas, coal gas or biogas etc.；Certainly, first medium can also be low for other Warm medium.Preferably, first medium is water, carbon dioxide or ammonia.The boiling temperature of carbon dioxide or ammonia is moderate, waste heat hair The moderate pressure produced in electric application process, technology application is also relatively ripe.In addition, carbon dioxide is nontoxic, free from admixture, nothing Taste is stimulated, no combustion explosion is not combustion-supporting, and its cost and price is also than relatively low.
Alternatively, the boiling point of N media is not higher than the boiling point of N-1 media, in order to which N media are in N-1 grades of condensers Interior cooling N-1 media.Alternatively, N media are inorganic Low medium or organic cryogenic media.Alternatively, N media are Normal atmosphere depresses low boiling point in 0 degree Celsius of cryogenic liquid medium.Alternatively, the boiling point of N media is less than -30 DEG C.Wherein, When N is integer more than or equal to 2, N media for example can for carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen, freon, methane, Ethane, propane, natural gas, coal gas or biogas etc.；Certainly, N media can also be other cryogenic medias.Preferably, first Medium is carbon dioxide or ammonia, and second medium is freon, and the 3rd medium is nitrogen.
Referring to shown in Fig. 3-Fig. 5, in the alternative of the present embodiment, the deep layer heat energy utilization pipeline, which includes circulation, gas The refrigeration cycle of liquid phase change medium；By refrigeration cycle to cool down the N of N level steam turbines or the output of N grades of expanding machines Medium.
Specifically, refrigeration cycle include head and the tail be sequentially communicated N levels condenser, compressor 401, heat exchanger 402, Freeze steam turbine 405 or refrigerating expander or expansion valve.That is, N grades of condensers, compressor 401, heat exchanger 402 and system The cold head and the tail of steam turbine 405 are sequentially communicated and form refrigeration cycle；Or, N grades of condensers, compressor 401, heat exchangers 402 It is sequentially communicated with refrigerating expander head and the tail and forms refrigeration cycle；Or, N grades of condensers, compressor 401, heat exchangers 402 It is sequentially communicated with expansion valve head and the tail and forms refrigeration cycle.
N grades of condensers are used to make the refrigerant cooling N level steam turbines for flowing through refrigeration cycle or N grades of expanding machine outputs N media.
Compressor 401 is used to compress refrigerant, and refrigerant is cooled down by heat exchanger 402, is delivered to refrigeration vapour Turbine 405 or refrigerating expander or expansion valve, to drive refrigeration steam turbine 405 or refrigerating expander to rotate.Alternatively, freeze vapour Turbine 405 or refrigerating expander drive connection refrigeration and generation machine 406, so that the N for flowing through N grades of condensers to be situated between to a certain extent The heat energy of matter is converted into the electric energy of refrigeration and generation machine 406, improves generating efficiency.In addition, refrigeration steam turbine 405 or refrigerating expander Can be with other rotation apparatuses of drive connection.
Alternatively, the refrigerant of refrigeration cycle is the cryogenic liquid medium that boiling point is less than 0 degree Celsius.Alternatively, The boiling point of refrigerant is not higher than the boiling point of N media, in order to which refrigerant cools down N media in N grades of condensers.It is optional Ground, refrigerant is inorganic Low medium or organic cryogenic media.Alternatively, the boiling point of refrigerant is less than -30 DEG C.Its In, refrigerant for example can for carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen, freon, methane, ethane, propane, natural gas, Coal gas or biogas etc.；Certainly, refrigerant can also be other cryogenic medias.Preferably, refrigerant is nitrogen or boiling point Less than the medium of nitrogen.
Alternatively, the refrigerant of refrigeration cycle is that gas-liquid becomes phase medium, namely refrigerant is in the kind of refrigeration cycle The conversion of gas phase and liquid phase is carried out in loop.Alternatively, the refrigeration after compressing and being cooled down through heat exchanger 402 through compressor 401 is situated between Matter is in a liquid state in whole or in part, and refrigerant, which is flowed through, to be discharged pressure after refrigeration steam turbine 405 or refrigerating expander acting and be in All or part of gaseous state.
In the alternative of the present embodiment, heat exchanger 402 is arranged between N grades of liquid pumps and N-1 grades of condensers；Compressor After 401 compression refrigerants, refrigerant heating makes the N media and kind of refrigeration cycle of N circulation loops by heat exchanger 402 The refrigerant heat exchange in loop, i.e., refrigerant is cooled into all or part of liquid by N media, and N media are freezed Medium is thermally formed portion gas.In theory, after heating N media through heat exchanger 402, freeze so as to be compressed through compressor 401 The heat energy that medium is produced can be used effectively, and improve the energy utilization rate of system, reduce the loss of energy.
Alternatively, the heat exchange air bleeding valve for exhaust is provided with the pipeline between heat exchanger 402 and N-1 grades of condensers 501.The pressure on the pipeline between heat exchanger 402 and N-1 grades of condensers can be discharged by the air bleeding valve 501 that exchanges heat.For example, the N media are thermally formed after portion gas by refrigerant, the increased pressure of pipeline, and by exchanging heat, the release of air bleeding valve 501 part is pressed Power, to improve the security of N circulation loops operation, and improves the security of system.
Alternatively, compression Inlet fluid separator 407 is communicated between N grades of condensers and compressor 401；It is compressed into oral fluid Body separator 407 is used for the refrigerant for separating refrigeration cycle, and will be conveyed to compressor in the refrigerant of gas phase 401；By compressing Inlet fluid separator 407, using the refrigerant that ensures to be conveyed to compressor 401 as gas, and then improve The service life of compressor 401.
Alternatively, refrigeration is communicated between refrigeration steam turbine 405 or refrigerating expander or expansion valve, with heat exchanger 402 low Warm working medium memory 404；To store refrigerant by refrigeration low-temperature working medium memory 404, and improve refrigeration cycle Stability.Wherein, refrigeration low-temperature working medium memory 404 is used to store refrigerant, and system can be improved to a certain extent The stability in SAPMAC method loop.
Alternatively, it is communicated with refrigerant liquid separator 403 between heat exchanger 402 and refrigeration low-temperature working medium memory 404；System Cold liquid separator 403 is used for the refrigerant for separating refrigeration cycle, and the refrigerant in liquid phase is conveyed into refrigeration Cryogenic fluid memory 404；By refrigerant liquid separator 403, to ensure the system for being conveyed to refrigeration low-temperature working medium memory 404 Cold medium is liquid, reduce or avoid to a certain extent refrigeration low-temperature working medium memory 404 bear pressure or bear compared with Big pressure, to improve the security performance of refrigeration low-temperature working medium memory 404.
Alternatively, refrigeration memory is provided between refrigeration low-temperature working medium memory 404 and refrigerant liquid separator 403 to enter Mouth valve 4041；Freeze and set between steam turbine 405 or refrigerating expander or expansion valve, with refrigeration low-temperature working medium memory 404 There is refrigeration memory outlet valve 4042.By memory inlet valve 4041 and the refrigeration memory outlet valve 4042 of freezing, So that refrigeration low-temperature working medium memory 404 can constitute independent cryogenic fluid storage facilities, while can also be with kind of refrigeration cycle Refrigerant in the equipment such as N levels condenser, the compressor 401 in loop is circulated with being separated, to run under specific circumstances Protection and control system.
In the alternative of the present embodiment, deep layer heat energy utilization pipeline includes cooling down in line pipeline；By cooling down vertical pipe Road is to cool down the N media of N level steam turbines or the output of N grades of expanding machines.
Specifically, cool down the in line cryogenic fluid memory 408 of cooling that in line pipeline includes being sequentially communicated, cool down it is in line Liquid pump 409, N grade condenser and the in line output end of cooling；Alternatively, the in line output end of cooling is provided with cooling inline valve Door 410.Alternatively, cool down and be provided with cooling memory between in line cryogenic fluid memory 408 and the in line liquid pump 409 of cooling Outlet valve 4081；By cooling down memory outlet valve 4081 with control to cool down in line cryogenic fluid memory 408 with cooling The break-make of pipeline between in line liquid pump 409.
Cool down in line liquid pump 409 be used for make the in line cryogenic fluid memory 408 of cooling in the in line medium of cooling convey Discharged to N grades of condensers, and through the in line output end of supercooling, it may also be said to discharged through supercooling inline valve door 410.For example, beating The in line valve 410 of cooling is opened, in line medium is cooled down and is discharged by cooling down in line output end.In line medium is cooled down at N grades by making Cooling N level steam turbines or the N media of N grades of expanding machine output in condenser, so that N circulation loops can normally be run.
Alternatively, the in line medium of cooling for cooling down in line pipeline is less than 0 degree Celsius of cryogenic liquid medium for boiling point.It is optional Ground, the boiling point for cooling down in line medium is not higher than the boiling point of N media, is cooled down in order to cool down in line medium in N grades of condensers N media.Alternatively, it is inorganic Low medium or organic cryogenic media to cool down in line medium.Alternatively, in line medium is cooled down Boiling point be less than -30 DEG C.Wherein, cool down in line medium for example can for carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen, freon, Methane, ethane, propane, natural gas, coal gas or biogas etc.；Certainly, it can also be other cryogenic medias to cool down in line medium.It is excellent Selection of land, cools down the medium that in line medium is less than nitrogen for nitrogen or boiling point.
Alternatively, it is non-combustible medium to cool down in line medium, for example, carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen, fluorine profit Hold high, cool down in line medium and directly discharge.Alternatively, it is combustible medium to cool down in line medium；In line medium is for example cooled down for first Alkane, ethane, propane, oxygen, natural gas, coal gas or biogas etc.；Further, the burning of in line output end and boiler is cooled down Room is connected, so that the in line medium of cooling for cooling down in line pipeline discharge burns in boiler, to make full use of the in line medium of cooling, Avoid or reduce the waste for cooling down in line medium.
Alternatively, cool down the in line medium of cooling of in line pipeline and become phase medium for gas-liquid, namely cool down in line medium at this Cool down the conversion that gas phase and liquid phase are carried out in line pipeline.Alternatively, cool down in line medium and cool down in line cryogenic fluid storage It is in a liquid state in whole or in part in device 408, cools down after in line medium flows through refrigeration steam turbine 405 or refrigerating expander acting and discharge Pressure and in all or part of gaseous state.
In the alternative of the present embodiment, deep layer heat energy utilization pipeline includes refrigeration cycle and/or cooling vertical pipe Road, i.e. deep layer heat energy utilization pipeline include refrigeration cycle, or deep layer heat energy utilization pipeline includes cooling down in line pipeline, or Person's deep layer heat energy utilization pipeline includes refrigeration cycle and cools down in line pipeline.Alternatively, deep layer heat energy utilization pipeline includes Refrigeration cycle cools down in line pipeline, to simplify deep layer heat energy utilization pipeline, reduces the construction cost of system.In addition, deep Layer heat energy utilization pipeline can also include other be used to cooling down the equipment of N media that N level steam turbines or N grade expanding machines are exported, Pipeline.
In the alternative of the present embodiment, when N is the integer more than or equal to 1, set between N grades of condensers and N grades of liquid pumps It is equipped with N grade low-temp working medium memories；Wherein, N grade low-temps working medium memory is used to store N media, can be to a certain extent Improve the stability of N circulation loops.For example, when such as N is 1, being set between first-stage condenser 103 and level liquid pump 107 It is equipped with one-level cryogenic fluid memory 106；Wherein, one-level cryogenic fluid memory 106 is used to store first medium, can be one Determine the stability in raising first circulation loop in degree.Alternatively, it is cased with heat-insulation layer outside N grade low-temps working medium memory.
Alternatively, when N is the integer more than or equal to 1, N grades are communicated between N grades of condensers and N grade low-temp working medium memories Condenser pump；N grades of condenser pumps are used to make the N media for flowing through N grades of condensers input to N grade low-temp working medium memories；Pass through N grades Condenser pump, N grade low-temp working medium memories are conveyed to by the N media for flowing through N grades of condensers.For example when N is 1, one-level condensation One-level condenser pump 105 is communicated between device 103 and one-level cryogenic fluid memory 106；One-level condenser pump 105 flows through one for order The first medium of level condenser 103 is inputted to one-level cryogenic fluid memory 106；By one-level condenser pump 105, it will flow through The first medium of first-stage condenser 103 is conveyed to one-level cryogenic fluid memory 106.Alternatively, insulation is cased with outside N grades of condenser pumps Layer.
Alternatively, when N is the integer more than or equal to 1, N grades of liquid is communicated between N grades of condensers and N grades of condenser pumps and are separated Device；N grades of liquid separators are used for the N media for separating N circulation loops, and the N media in liquid phase are conveyed into N grades of condensations Pump；By N grades of liquid separators, to ensure to be conveyed to the N media of N grade low-temp working medium memories as liquid through N grades of condenser pumps, Reduce or avoid to a certain extent N grade low-temp working medium memories to bear pressure or bear larger pressure, to improve N grades The security performance of cryogenic fluid memory.For example when N is 1, one is communicated between first-stage condenser 103 and one-level condenser pump 105 Level liquid separator 104；Level liquid separator 104 is used for the first medium for separating first circulation loop, and by liquid phase First medium is conveyed to one-level condenser pump 105；By level liquid separator 104, to ensure to be conveyed to through one-level condenser pump 105 The first medium of one-level cryogenic fluid memory 106 is liquid.Alternatively, it is cased with heat-insulation layer outside N grades of liquid separators.
Alternatively, when N is the integer more than or equal to 1, N grades are provided between N grades of condenser pumps and N grade low-temp working medium memories Memory inlet valve；N grades of memory outlet valves are provided between N grades of liquid pumps and N grade low-temp working medium memories；Pass through N Level memory inlet valve and N grades of memory outlet valves, so that N grade low-temp working medium memories can constitute independent low temperature work Matter storage facilities, while can also be carried out with the N media in the equipment such as the N levels condensers of N circulation loops, N grades of liquid pumps Circulate with separating, with running protection under specific circumstances and control system.For example when N is 1, one-level condenser pump 105 and one-level are low Single-level memory inlet valve 1061 is provided between warm working medium memory 106；Level liquid pump 107 is deposited with one-level cryogenic fluid Single-level memory outlet valve 1062 is provided between reservoir 106；Stored by single-level memory inlet valve 1061 and one-level Device outlet valve 1062, so that one-level cryogenic fluid memory 106 can constitute independent cryogenic fluid storage facilities, while It can be circulated with the first medium in the equipment such as first-stage condenser 103, the level liquid pump 107 in first circulation loop with being divided From with running protection under specific circumstances and control system.
Alternatively, when N is the integer more than or equal to 1, N grade low-temp working medium memories are provided with N grades of memories compensation exhausts Valve；N grades of memory compensation air bleeding valves are used to compensating or discharging the medium in N grade low-temp working medium memories, and the medium can be N N media in grade low-temp working medium memory, or other Jie such as air in first void N grade low-temp working medium memories Matter；Air bleeding valve is compensated by N grades of memories, so that the N media of N grade low-temp working medium memories can be supplemented, to compensate N circulations Loop leakage, the N media of volatilization；Air bleeding valve is compensated by N grades of memories, additionally it is possible to discharged in N grade low-temp working medium memories In the N media of gas, it can reduce or avoid to a certain extent N grade low-temp working medium memories to bear pressure or bear Larger pressure, to improve the security performance of N grade low-temp working medium memories.For example when N is 1, one-level cryogenic fluid memory 106 It is provided with single-level memory compensation air bleeding valve 1063；Single-level memory compensation air bleeding valve 1063 is low for compensating or discharging one-level First medium in warm working medium memory 106；Air bleeding valve 1063 is compensated by single-level memory, so that a grade low-temp work can be supplemented The first medium of matter memory 106, to compensate the first medium of the leakage of first circulation loop, volatilization；Mended by single-level memory Repay air bleeding valve 1063, additionally it is possible to discharge the first medium in gas in one-level cryogenic fluid memory 106.
Alternatively, when N is the integer more than or equal to 1, N grades of condensers are provided with N grades of condensation compensation air bleeding valves；N grades of condensations Compensation air bleeding valve is used to compensating or discharging the medium in N grades of condensers, and the medium can be the N media in N grades of condensers, Can also be other media such as the air in N grades of condensers of first void.Air bleeding valve is compensated by N grades of condensations, so that N can be supplemented The N media of level condenser, to compensate the N media of the leakage of N circulation loops, volatilization；Air bleeding valve is compensated by N grades of condensations, The N media in gas in N grades of condensers can also be discharged, can reduce or avoid to a certain extent N grades of condensers to hold By larger pressure, to improve the security performance of N grades of condensers.For example when N is 1, first-stage condenser 103 is provided with one-level condensation Compensate air bleeding valve 1031；One-level condensation compensation air bleeding valve 1031 is used to compensating or discharging the medium in first-stage condenser 103, should Medium can be the first medium in first-stage condenser 103, or air in first void first-stage condenser 103 etc. its His medium；Pass through one-level condensation compensation air bleeding valve 1031, additionally it is possible to the first medium of first-stage condenser 103 is supplemented, to compensate the The leakage of one circulation loop, the first medium of volatilization；By one-level condensation compensation air bleeding valve 1031, first-stage condenser can be discharged In the first medium or other impurities of gas in 103, it can reduce or avoid first-stage condenser 103 to bear to a certain extent Larger pressure, to improve the security performance of first-stage condenser 103.
Alternatively, when N is integer more than or equal to 1, N level steam turbines and N grades of condensers are integrated device, or N grades swollen Swollen machine is integrated device with N grades of condensers, with simplied system structure, reduces system cost.Such as N be 1 when, first turbine with First-stage condenser is integrated device, or one-stage expansion machine is integrated device with first-stage condenser.
Alternatively, when N is the integer more than or equal to 1, N circulation loops are provided with one or the discharge of many places circulation loop Valve 502, circulation loop drain valve 502 is used to discharge medium in N circulation loops；The medium can be the N in N grades of condensers Medium, or other media such as air in N grades of condensers of first void.Alternatively, circulation loop drain valve 502 is set In the output end or input of N grades of condensers；Alternatively, circulation loop drain valve 502 is arranged on N level steam turbines or N grades swollen The output end or input of swollen machine.As shown in Figure 3-Figure 5, show that first circulation loop is arranged on level liquid pump in figure Circulation loop drain valve 502 between 107 and one-level cryogenic fluid memory 106.
Alternatively, the N level steam turbines or the N grades of expanding machine, the N grades of condenser and the N grades of liquid pump overcoat There is heat-insulation layer.
Referring to shown in Fig. 3-Fig. 5, the deep layer heat energy utilization pipeline shown in figure includes 3 that circulation has gas-liquid phase transition medium Circulation loop.
Specifically, first circulation loop includes the 3rd heat-exchanger rig 101, the first turbine 102 that head and the tail are sequentially communicated Or one-stage expansion machine, first-stage condenser 103, level liquid separator 104, one-level condenser pump 105, single-level memory inlet valve 1061st, one-level cryogenic fluid memory 106, single-level memory outlet valve 1062 and level liquid pump 107；Wherein, one-level vapour Turbine 102 or one-stage expansion machine drive connection one-level generator 108.
Second circulation loop includes first-stage condenser 103, second turbine 202 or the compound expansion that head and the tail are sequentially communicated Machine, secondary condenser 203, secondary liquid separator 204, B-grade condensation pump 205, second-level storage inlet valve 2061, two grades Cryogenic fluid memory 206, second-level storage outlet valve 2062 and secondary liquid pump 207；Wherein, second turbine 202 or Compound expansion machine drive connection secondary generator 208.
3rd circulation loop includes secondary condenser 203, three level steam turbines 302 or the three-level expansion that head and the tail are sequentially communicated Machine, three-level condenser 303, three-level liquid separator 304, three-level condenser pump 305, third level storage inlet valve 3061, three-level Cryogenic fluid memory 306, third level storage outlet valve 3062 and three-level liquid pump 307；Wherein, three level steam turbines 302 or Three-level expanding machine drive connection three-level generator 308.
When the deep layer heat energy utilization pipeline includes refrigeration cycle, refrigeration cycle includes what head and the tail were sequentially communicated Three-level condenser 303, compression Inlet fluid separator 407, compressor 401, heat exchanger 402, refrigerant liquid separator 403, system Cold memory inlet valve 4041, refrigeration low-temperature working medium memory 404, refrigeration memory outlet valve 4042, refrigeration steam turbine 405 or refrigerating expander or expansion valve；Wherein, refrigeration steam turbine 405 or refrigerating expander drive connection refrigeration and generation machine 406.
When the deep layer heat energy utilization pipeline includes cooling down in line pipeline, the cooling that in line pipeline includes being sequentially communicated is cooled down In line cryogenic fluid memory 408, the in line liquid pump 409 of cooling, three-level condenser 303 and the in line valve 410 of cooling.
In the alternative of the present embodiment, deep layer heat energy utilization pipeline includes 2 circulations that circulation has gas-liquid phase transition medium Loop.
Specifically, first circulation loop includes the 3rd heat-exchanger rig 101, the first turbine 102 that head and the tail are sequentially communicated Or one-stage expansion machine, first-stage condenser 103, level liquid separator 104, one-level condenser pump 105, single-level memory inlet valve 1061st, one-level cryogenic fluid memory 106, single-level memory outlet valve 1062 and level liquid pump 107；Wherein, one-level vapour Turbine 102 or one-stage expansion machine drive connection one-level generator 108.
Second circulation loop includes first-stage condenser 103, second turbine 202 or the compound expansion that head and the tail are sequentially communicated Machine, secondary condenser 203, secondary liquid separator 204, B-grade condensation pump 205, second-level storage inlet valve 2061, two grades Cryogenic fluid memory 206, second-level storage outlet valve 2062 and secondary liquid pump 207；Wherein, second turbine 202 or Compound expansion machine drive connection secondary generator 208.
When the deep layer heat energy utilization pipeline includes refrigeration cycle, refrigeration cycle includes what head and the tail were sequentially communicated Secondary condenser 203, compression Inlet fluid separator 407, compressor 401, heat exchanger 402, refrigerant liquid separator 403, system Cold memory inlet valve 4041, refrigeration low-temperature working medium memory 404, refrigeration memory outlet valve 4042, refrigeration steam turbine 405 or refrigerating expander or expansion valve；Wherein, refrigeration steam turbine 405 or refrigerating expander drive connection refrigeration and generation machine 406.
When the deep layer heat energy utilization pipeline includes cooling down in line pipeline, the cooling that in line pipeline includes being sequentially communicated is cooled down In line cryogenic fluid memory 408, the in line liquid pump 409 of cooling, secondary condenser 203 and the in line valve 410 of cooling.
Alternatively, the 3rd heat-exchanger rig 101 is boiler, cools down the in line output end of cooling and the burning of boiler of in line pipeline Room is connected, so that the in line medium of cooling for cooling down in line pipeline discharge burns in boiler, to make full use of the in line medium of cooling, Avoid or reduce the waste for cooling down in line medium.Alternatively, first medium is water, and first medium is carbon dioxide, and cooling is straight Medium is arranged such as can the combustible medium for methane, ethane, propane, oxygen, natural gas, coal gas or biogas.
It should be noted that carbon dioxide belongs to greenhouse gases, a large amount of glaciers of the South Pole arctic are all melted constantly Change, global warming.The system is once used, it is more likely that is used great amount of carbon dioxide liquid, is the equal of to greenhouse gases One kind is sealed up for safekeeping, and this quantity of sealing up for safekeeping is possible to very big, for our ecological environment and climate warming, it may be said that be also that contribution is huge Greatly.
Referring to shown in Fig. 1, Fig. 2, in the alternative of the present embodiment, thermal source pipeline is provided with thermal source blower fan 612 or thermal source Compressor；Thermal source blower fan 612 or thermal source compressor are used for medium in compressor/heat source pipeline, and make in thermal source pipeline medium from thermal source Entrance 610 is exported to thermal source pipe outlet 611；By thermal source blower fan 612 or thermal source compressor, to accelerate in thermal source pipeline Medium flows from the heat source pipe outlet 611 of thermal source entrance 610.
Thermal source blower fan 612 or thermal source compressor can be arranged on the optional position of thermal source pipeline, for example thermal source blower fan 612 or Thermal source compressor is arranged on appointing between thermal source line entry, thermal source tube outlet, thermal source line entry and thermal source tube outlet One position etc..
Embodiment two
Embodiment two provides a kind of power station, and the embodiment includes the heat energy utilization system described in embodiment one, implements The technical characteristic of heat energy utilization system disclosed in example one is also applied for the embodiment, the published heat energy utilization system of embodiment one Description is not repeated in the technical characteristic of system.
The power station that the present embodiment is provided, including heat energy utilization system.Alternatively, the power station is for example including multiple heat System can be utilized.
Power station described in the present embodiment has the advantages that heat energy utilization system described in embodiment one, disclosed in embodiment one The heat energy utilization system advantage be not repeated herein description.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology The scope of scheme.

Claims (10)

1. a kind of heat energy utilization system, it is characterised in that utilize pipeline and thermal source pipeline including cooling；The thermal source pipeline is successively Including thermal source entrance, the first heat-exchanger rig and thermal source pipe outlet；
The cooling includes the cooling that is sequentially communicated using cryogenic fluid memory, first heat-exchanger rig and cold using pipeline But delivery outlet is utilized；
First heat-exchanger rig is used to make the cooling described using medium cooling using the cooling in cryogenic fluid memory The heat source medium that thermal source pipeline is flowed through, and the cooling is conveyed to using delivery outlet discharge.
2. heat energy utilization system according to claim 1, it is characterised in that the thermal source pipeline also includes the 3rd heat exchange dress Put；
It is first heat-exchanger rig, described from the thermal source entrance to the thermal source pipe outlet in the thermal source pipeline 3rd heat-exchanger rig is set gradually from high to low according to the cooling of itself is flowed through using the temperature of medium；
3rd heat-exchanger rig connects deep layer heat energy utilization pipeline；The deep layer heat energy utilization pipeline, which includes circulation, liquid phase Become N number of circulation loop of medium；Wherein, N is the integer more than or equal to 1；
N be 1 when, first circulation loop include head and the tail be sequentially communicated the 3rd heat-exchanger rig, first turbine or one-stage expansion machine, First-stage condenser and level liquid pump；
When N is integer more than or equal to 2, N circulation loops include the N-1 levels condenser that head and the tail are sequentially communicated, N level steam turbines or N grades of expanding machines, N grades of condensers and N grades of liquid pumps；The N-1 grades of condenser is used to make the N media for flowing through N circulation loops Cool down the N-1 media of N-1 level steam turbines or N-1 grades of expanding machine outputs；
The N grades of condenser is used for the N media for cooling down N level steam turbines or N grades of expanding machine outputs；
The first medium in the first circulation loop is cryogenic liquid medium；The N media are that normal atmosphere depresses low boiling point In 0 degree Celsius of cryogenic liquid medium.
3. heat energy utilization system according to claim 1, it is characterised in that the cooling includes cooling using pipeline and utilized Steam turbine or cooling utilize expanding machine；The cooling is arranged on described first using expanding machine using steam turbine or the cooling and changed Thermal and the cooling are utilized between delivery outlet.
4. heat energy utilization system according to claim 3, it is characterised in that the thermal source pipeline also includes the second heat exchange dress Put；
In the thermal source pipeline, the cooling in second heat-exchanger rig is using medium temperature higher than in first heat-exchanger rig Cooling utilize medium temperature when, second heat-exchanger rig is arranged on the thermal source entrance and first heat-exchanger rig Between；Cooling in second heat-exchanger rig utilizes medium using medium temperature less than the cooling in first heat-exchanger rig During temperature, first heat-exchanger rig is arranged between the thermal source entrance and second heat-exchanger rig；
The cooling is using in pipeline, and first heat-exchanger rig, the cooling utilize expansion using steam turbine or the cooling Machine, second heat-exchanger rig and the cooling are sequentially communicated using delivery outlet；Second heat-exchanger rig flows through institute for order State the thermal source that cooling cools down the thermal source pipeline output using steam turbine or the cooling using the cooling of expanding machine using medium Medium, and the cooling is conveyed to using delivery outlet discharge.
5. heat energy utilization system according to claim 4, it is characterised in that the thermal source pipeline also includes the 3rd heat exchange dress Put；
It is first heat-exchanger rig, described from the thermal source entrance to the thermal source pipe outlet in the thermal source pipeline Second heat-exchanger rig, the 3rd heat-exchanger rig are set successively from high to low according to the cooling of itself is flowed through using the temperature of medium Put；
3rd heat-exchanger rig connects deep layer heat energy utilization pipeline；The deep layer heat energy utilization pipeline, which includes circulation, liquid phase Become N number of circulation loop of medium；Wherein, N is the integer more than or equal to 1；
N be 1 when, first circulation loop include head and the tail be sequentially communicated the 3rd heat-exchanger rig, first turbine or one-stage expansion machine, First-stage condenser and level liquid pump；
When N is integer more than or equal to 2, N circulation loops include the N-1 levels condenser that head and the tail are sequentially communicated, N level steam turbines or N grades of expanding machines, N grades of condensers and N grades of liquid pumps；The N-1 grades of condenser is used to make the N media for flowing through N circulation loops Cool down the N-1 media of N-1 level steam turbines or N-1 grades of expanding machine outputs；
The N grades of condenser is used for the N media for cooling down N level steam turbines or N grades of expanding machine outputs；
The first medium in the first circulation loop is cryogenic liquid medium；The N media are that normal atmosphere depresses low boiling point In 0 degree Celsius of cryogenic liquid medium.
6. the heat energy utilization system according to claim 2 or 5, it is characterised in that the deep layer heat energy utilization pipeline includes Circulation has the refrigeration cycle of gas-liquid phase transition medium；It is cold that the refrigeration cycle includes head and the tail be sequentially communicated the N grades Condenser, compressor, heat exchanger, refrigeration steam turbine or refrigerating expander or expansion valve；The N grades of condenser flows through refrigeration for order The refrigerant cooling N level steam turbines of circulation loop or the N media of N grades of expanding machine output；The compressor, which is used to compress, to be made Cold medium, and the refrigerant is cooled down by the heat exchanger, it is delivered to the refrigeration steam turbine or the refrigerant-expansion Machine or the expansion valve；
And/or,
The deep layer heat energy utilization pipeline includes cooling down in line pipeline；The cooling that the in line pipeline of cooling includes being sequentially communicated is straight Arrange cryogenic fluid memory, the N grades of condenser and cool down in line output end；The N grades of condenser is used to make the cooling straight Arrange N Jie that the in line medium of cooling in cryogenic fluid memory cools down the N level steam turbines or N grades of expanding machine output Matter, and it is conveyed to the in line output end discharge of the cooling；The in line cryogenic fluid memory of the cooling and the N grades of condenser it Between be provided with the in line liquid pump of cooling, the in line liquid pump of cooling is used to make in the in line cryogenic fluid memory of cooling Cool down in line medium and be conveyed to the N grades of condenser；The in line cryogenic fluid memory of cooling and the in line liquid of cooling Cooling memory outlet valve is provided between pump；The in line output end of cooling is provided with the in line valve of cooling.
7. heat energy utilization system according to claim 4, it is characterised in that first heat-exchanger rig include one or Multiple thermal source heat exchangers；Second heat-exchanger rig includes one or more thermal source heat exchanger；
When first heat-exchanger rig includes multiple thermal source heat exchangers, multiple thermal source heat exchangers of first heat-exchanger rig are successively Connection, or the two ends of multiple thermal source heat exchangers of first heat-exchanger rig are respectively communicated with；
When second heat-exchanger rig includes multiple thermal source heat exchangers, multiple thermal source heat exchangers of second heat-exchanger rig are successively Connection, or the two ends of multiple thermal source heat exchangers of second heat-exchanger rig are respectively communicated with.
8. heat energy utilization system according to claim 1, it is characterised in that the thermal source pipeline be provided with thermal source blower fan or Thermal source compressor；The thermal source blower fan or the thermal source compressor are used to compress and make in the thermal source pipeline medium from the heat Source entrance is exported to the thermal source pipe outlet；
The thermal source blower fan or the thermal source compressor be arranged on the thermal source line entry, the thermal source tube outlet, described Any position between thermal source line entry and the thermal source tube outlet.
9. heat energy utilization system according to claim 3, it is characterised in that the cooling using cryogenic fluid memory with Cooling, which is provided with, between first heat-exchanger rig utilizes liquid pump；The cooling is used to make the cooling utilize using liquid pump Cooling in cryogenic fluid memory is conveyed to first heat-exchanger rig using medium；
The cooling is stored using cryogenic fluid memory and the cooling using cooling is provided between liquid pump using low temperature Device outlet valve；
The cooling includes separate first chamber and second chamber using steam turbine or the cooling using expanding machine；Institute State cooling and sequentially pass through first heat-exchanger rig, first chamber using medium using the cooling in cryogenic fluid memory Room, the cooling utilize delivery outlet and the second chamber and discharged；
The cooling is water, carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen, freon, methane, ethane, propane, day using medium Right gas, coal gas or biogas；
Thermal source entrance connection boiler flue, seawater, air or the condenser of the thermal source pipeline；The cooling utilizes vapour Turbine or the cooling utilize generator using the cooling of expanding machine drive connection.
10. a kind of power station, it is characterised in that including the heat energy utilization system described in claim any one of 1-9.
CN201710432027.1A 2017-06-09 2017-06-09 Heat energy utilization system and power station Pending CN107060930A (en)

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