CN106898400A - The remote region thermal energy supply system of large commercial nuclear energy mesohigh steam and method - Google Patents
The remote region thermal energy supply system of large commercial nuclear energy mesohigh steam and method Download PDFInfo
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- CN106898400A CN106898400A CN201710188043.0A CN201710188043A CN106898400A CN 106898400 A CN106898400 A CN 106898400A CN 201710188043 A CN201710188043 A CN 201710188043A CN 106898400 A CN106898400 A CN 106898400A
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D9/00—Arrangements to provide heat for purposes other than conversion into power, e.g. for heating buildings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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Abstract
The invention belongs to nuclear power nuclear heating technical field, specifically related to a kind of remote region thermal energy supply system of large commercial nuclear energy mesohigh steam and method, purpose is a kind of large commercial nuclear energy mesohigh steam long-distance sand transport region thermal energy supply system of Development and design, supplied by remote Large Copacity enthalpy steam thermal energy high, reduce industry and civil around large nuclear power station to use, realize that environmental pollution reduces purpose.It is characterized in that：It includes the second mesohigh steam discharge tube, Small-scale Heat Power Plant, paper mill or printing and dyeing mill, the first low-pressure steam pipe network, the second low-pressure steam pipe network, the first low-pressure steam user and the second low-pressure steam user in the first mesohigh steam discharge tube, three loops in large commercial nuclear power plant, the three long-range conveyance conduits of loop mesohigh superheated steam, three loops.The present invention has replaced the coal-fired user in the range of large area territory around nuclear power station, the effective guarantee energy demand of industry and life, have compressed the space of pollution that caused by coal burning.
Description
Technical field
The invention belongs to nuclear power nuclear heating technical field, and in particular to a kind of large commercial nuclear energy mesohigh steam long distance
From region thermal energy supply system and method.
Background technology
Nuclear energy is a kind of energy of high-efficiency cleaning, is increasingly received by the public.Raising nuclear power is in grid generation amount
Accounting, substitute thermoelectricity, there is positive effect for reducing China large area haze weather.Current nuclear energy is to substitute fossil combustion
Material, reduces the maximally effective means of greenhouse gas emission.
By taking the Jiaxing City of coal-burning power plant in the kilometer radius of Qinshan Phase II NPP periphery 45 as an example, Jiaxing City to the end of the year 2015 has 30
The local small-sized cogeneration power plant of family, wherein 26, pure coal-fired thermal power coproduction power plant, general 2 to 3 6000 kilowatts of installation is extremely
1.5 ten thousand kilowatts of small-sized mesohigh steam turbine generator, 97.05 ten thousand kilowatts of whole city's general assembly capacity., Jiaxing City place thermoelectricity in 2015
Coproduction power plant coal consumption of power supply is 304.4 grams/kilowatt hour, heat supply mark 39.26 kilograms/GJ of coal consumption, 6000 kilowatts and above electricity
Accumulative 55.34 hundred million kilowatt hours, the kilowatt hour of electricity volume 30.4 hundred million of generating electricity of factory.99 boilers of whole city's cogeneration of heat and power industry, 71 generatings
632.59 ten thousand tons of machine year coal consumption total amount.These small power plant one side efficiency are less than large thermal power plant, and environmental emission pressure is huge
Greatly, high-efficiency large fired power generating unit online power load index has on the other hand also been tied up.But, because local food, weaving, making
The industry such as paper and living needs, it is difficult to solve production and life heat energy supply problem, place small cogeneration enterprise of China obtains
Run with long-run development, huge pressure is brought to environment.
Nuclear power plant has the nuclear energy thermal source of abundant stable high-quality amount, and conventional method, its nuclear energy directly turns in factory area
Chemical conversion electric energy, is outwardly conveyed by high-voltage fence.The present invention is with nuclear power high-quality nuclear power source as source, it is proposed that complete is big
Type commercialization nuclear energy mesohigh steam long-distance sand transport region thermal energy supply system design, Gao Han is prepared with nuclear power plant's main steam
Value mesohigh steam, by long-distance sand transport, replaces cogeneration of heat and power small thermal power plant or other Industrial Boilers fire coal thermal source, realizes
The purpose of large area nuclear energy safe utilization environmental protection.
Nuclear power overheat mesohigh steam transmission main pipeline over long distances is built, by vapor transmission to current cogeneration of heat and power enterprise,
Retain small part Miniature steamer generator, as steam long distance delivery basic load, substitute their coal-burning boiler thermal source, its
Subordinate's heat supply system keeps constant, realizes the steady switching that coal-fired steam nuclear energy is substituted.Such scheme, it should be unusual science
Feasible scheme.
The content of the invention
It is an object of the invention to a kind of large commercial nuclear energy mesohigh steam long-distance sand transport region heat energy of Development and design
Supply system, is supplied by remote Large Copacity enthalpy steam thermal energy high, reduces industry and civil around large nuclear power station
Use, realize that environmental pollution reduces purpose.
Technical scheme is as described below：
A kind of remote region thermal energy supply system of large commercial nuclear energy mesohigh steam, including large commercial nuclear power plant,
In the three long-range conveyance conduits of loop mesohigh superheated steam, three loops second in the first mesohigh steam discharge tube, three loops
Mesohigh steam discharge tube, Small-scale Heat Power Plant, paper mill or printing and dyeing mill, the first low-pressure steam pipe network, the second low pressure steam pipe
Net, the first low-pressure steam user and the second low-pressure steam user；The input of the three loop long-range conveyance conduits of mesohigh superheated steam
End connected with the output end of large commercial nuclear power plant, output end respectively with the first mesohigh steam discharge tube and three in three loops
The input connection of the second mesohigh steam discharge tube in loop；The output of the first mesohigh steam discharge tube in three loops
End connection Small-scale Heat Power Plant；The output end of the second mesohigh steam discharge tube is connected with paper mill or printing and dyeing mill in three loops；
Small-scale Heat Power Plant is connected by the second low-pressure steam pipe network with the second low-pressure steam user；Paper mill or printing and dyeing mill are low by first
Pressure steam pipe system is connected with the first low-pressure steam user.
The inside of large commercial nuclear power plant as described above includes that mesohigh saturated steam generator, secondary circuit draw gas condensation
Hot heater, nuclear power station secondary loop main steam system pipeline, nuclear power station secondary loop master give again for water pump, three loop feed pumps, steam
Draw gas isolating valve, secondary circuit main steam of water-system pipeline, secondary circuit main steam extraction line, secondary circuit main steam is drawn gas delivery pipe
Road, secondary circuit draw gas condensing water conduit, secondary circuit draw gas condensate conveyance conduit, three loop feedwater pipings, three loops feedwater it is defeated
Send pipeline, three loop mesohigh saturated vapor pipelines and steam reheating heater thermal source；The one of secondary circuit main steam system pipeline
End is connected with nuclear power station steam generator, and the other end is connected with steam turbine for nuclear power station high pressure cylinder, and middle part is taken out with secondary circuit main steam
One end connection in steam pipe road；One end of secondary circuit main feed system pipeline connects with the main feed-water intake of nuclear power station steam generator,
The other end and nuclear power station main feed pump outlet, draw gas one end of condensate conveyance conduit of middle part and secondary circuit connect；Two times
The other end of road main steam extraction line is drawn gas conveyance conduit by draw gas isolating valve and secondary circuit main steam of secondary circuit main steam
One end connection；The draw gas other end of condensate conveyance conduit of secondary circuit is drawn gas by the secondary circuit condensate pump that draws gas with secondary circuit
One end connection of condensing water conduit；Three loop feedwater pipings are by three loop feed pumps and one end of three loops feedwater conveyance conduit
Connection；Three loop feed-water intakes of mesohigh saturated steam generator are connected with the other end of three loops feedwater conveyance conduit, and three
Loop mesohigh saturated vapor outlet is connected with one end of three loop mesohigh saturated vapor pipelines, and secondary circuit mesohigh steam enters
Mouthful connected with the draw gas other end of conveyance conduit of secondary circuit main steam, mesohigh steam condensation water out and secondary circuit draw gas condensation
The other end connection of waterpipe；Steam again the entrance of hot heater and three loop mesohigh saturated vapor pipelines the other end connect
Logical, outlet is connected with the input of the three loop long-range conveyance conduits of mesohigh superheated steam；Steam reheating heater thermal source is set
On steam again hot heater.
Large commercial nuclear power plant as described above is more than with the vapor transmission distance of Small-scale Heat Power Plant, paper mill or printing and dyeing mill
Equal to five kilometers.
A kind of remote region heat energy Supply Method of large commercial nuclear energy mesohigh steam, be using supply as described above
System, comprises the following steps that：
Step 1：The heat produced in large commercial nuclear power plant inner core reactor fission energy warms is gathered in secondary circuit
Main steam system is transmitted, and the main steaming in part is extracted from nuclear power station secondary loop main steam system by secondary circuit main steam extraction line
Vapour, draws gas isolating valve by secondary circuit main steam, is drawn gas conveyance conduit by secondary circuit main steam, into mesohigh saturated vapor
Generator heats the water in three loops, produces temperature, pressure to be less than nuclear power station secondary loop main steam system pipeline and secondary circuit master
Mesohigh saturated vapor in steam extraction line；
Step 2：The nuclear power station secondary loop main steam extracted using step 1 discharges energy by mesohigh saturated steam generator
The water for condensing is measured, condensing water conduit is drawn gas by secondary circuit and secondary circuit is drawn gas condensate pump, by pipeline pumped back nuclear power station
Secondary circuit main feed system pipeline；
Step 3：Three Loop Waters from three loop feedwater pipings, by three loop feed pumps, feed water defeated by three loops
Pipeline is sent, water pump is delivered into mesohigh saturated steam generator；Wherein, secondary circuit main steam and three Loop Waters are in mesohigh saturation
Heat exchange is only existed in steam generator, without producing Medium Exchange or ganging up；
Step 4：Three Loop Waters absorb secondary circuit main steam heat by mesohigh saturated steam generator, produce three loops
Mesohigh saturated vapor, the temperature and pressure in the steam parameter, i.e. three loop mesohigh saturated vapor pipelines, less than nuclear power station
Temperature in secondary circuit main steam condition, i.e. nuclear power station secondary loop main steam system pipeline and secondary circuit main steam extraction line and
Pressure；
Step 5：Three loop mesohigh saturated vapors are transported to steam reheating by three loop mesohigh saturated vapor pipelines
Heater；
Step 6：Three loop mesohigh saturated vapors absorb heat in steam reheating heater, are processed to overheat mesohigh
Steam；
Step 7：Hot heater provides thermal source to steam by steam reheating heater thermal source again；
Step 8：The overheat mesohigh steam heated by steam reheating heater passes through three loop mesohigh superheated steams
Long-range conveyance conduit leaves large commercial nuclear power plant, long-distance sand transport, by the first mesohigh steam discharge tube in three loops
Be transported to Small-scale Heat Power Plant, by the second mesohigh steam discharge tube in three loops be delivered to paper mill or printing and dyeing mill or its
He is heat energy user, and long-distance sand transport is at least more than five kilometers；
Step 9：Using gained mesohigh steam in step 8, in small thermal power plant by processing, become low-pressure steam；
Step 10：The low-pressure steam processed by step passes through the original low-pressure steam pipe network or newly-built of small thermal power plant
Low-pressure steam pipe network, for the small user of the second low-pressure steam provides thermal source, completes nuclear energy and provides the energy at a distance；
Step 11：Using gained mesohigh steam in step 8, in paper mill or printing and dyeing mill by processing, become low pressure steaming
Vapour；
Step 12：The low-pressure steam processed by step 11 by the original low-pressure steam pipe network in paper mill or printing and dyeing mill or
The newly-built low-pressure steam pipe network of person, for the small user of the first low-pressure steam provides thermal source, completes nuclear energy and provides the energy at a distance.
In step 1 as described above, the position for extracting steam from nuclear power station secondary loop is secondary circuit main steam system pipeline.
In step 1 as described above, real time radiological monitoring is carried out to nuclear power station secondary loop system, find nuclear power station steam
Generator has leakage, is isolated by isolating valve extract steam immediately, prevents radioactive substance from spreading.
In step 5 as described above and 6, three loop saturation mesohigh steam are heated, make superheated steam,
It is easy to enthalpy steam long-distance sand transport high.
In step 7 as described above, the supplied heat source of three loops hot heater again is using heat source gas, coal-fired thermal source, combustion
Oily thermal source, electric power thermal source or other energy modes are realized.
In step 9 as described above, small thermal power plant is generating or decompression to the processing mode of high steam.
In step 11 as described above, paper mill or printing and dyeing mill are emergency generator to the processing mode of high steam or subtract
Pressure.
The beneficial effects of the invention are as follows：
The remote region thermal energy supply system of nuclear energy mesohigh steam described in the present invention, has replaced big around nuclear power station
The energy demand of coal-fired user in the range of area territory, effective guarantee industry and life, greatly have compressed pollution that caused by coal burning
Space, for nuclear power station periphery haze eliminate provide a kind of gratifying energy-saving and emission-reduction path.Similar power network high pressure remote conveying
Energy low-voltage power supply to the reason of user is sent, the remote energy conveying of large-tonnage, terminal user in mesohigh vapor collection of the present invention
The optimisation technique path of low pressure heat supply, will create the efficient new model of domestic and international nuclear heating, belongs to a kind of nuclear energy application and overturns
Property technological innovation.
Brief description of the drawings
Fig. 1 is the remote region thermal energy supply system schematic diagram of large commercial nuclear energy mesohigh steam of the invention；
Wherein：1- mesohigh saturated steam generators, 2- secondary circuits draw gas condensate pump, the loop feed pumps of 3- tri-, and 4- steams
Vapour hot heater again, 5- Small-scale Heat Power Plants, 6- paper mills or printing and dyeing mill, 7- the first low-pressure steam users, the low-pressure steams of 8- second
User, 101- nuclear power station secondary loop main steam system pipelines, 102- nuclear power station secondary loop main feed system pipelines, 201- secondary circuits
Main steam extraction line, 202- secondary circuit main steams are drawn gas isolating valve, and 203- secondary circuit main steams are drawn gas conveyance conduit, 204- bis-
Draw gas condensing water conduit in loop, and 205- secondary circuits draw gas condensate conveyance conduit, the loop feedwater pipings of 301- tri-, the loops of 302- tri-
Feedwater conveyance conduit, the loop mesohigh saturated vapor pipelines of 303- tri-, the loop long-range delivery pipes of mesohigh superheated steam of 304- tri-
Road, the first mesohigh steam discharge tube in the loops of 305- tri-, the second mesohigh steam discharge tube, 401- in the loops of 306- tri-
First low-pressure steam pipe network, 402- the second low-pressure steam pipe networks, 501- steam reheating heater thermals source.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of remote region thermal energy supply system of large commercial nuclear energy mesohigh steam, including large-scale business
With the first mesohigh steam discharge tube in nuclear power plant, the three long-range conveyance conduits 304 of loop mesohigh superheated steam, three loops
305th, the second mesohigh steam discharge tube 306, Small-scale Heat Power Plant 5, paper mill or printing and dyeing mill 6, the first low pressure steam in three loops
Steam pipe net 401, the second low-pressure steam pipe network 402, the first low-pressure steam user 7 and the second low-pressure steam user 8.It is high in three loops
The input for pressing through the long-range conveyance conduit 304 of vapours is connected with the output end of large commercial nuclear power plant, and output end is respectively with three
The input of the second mesohigh steam discharge tube 306 connects in the first mesohigh steam discharge tube 305 and three loops in loop
It is logical.The output end connection Small-scale Heat Power Plant 5 of the first mesohigh steam discharge tube 305 in three loops.It is high in second in three loops
The output end of pressure steam discharge tube 306 is connected with paper mill or printing and dyeing mill 6.Small-scale Heat Power Plant 5 passes through the second low pressure steam pipe
Net 402 is connected with the second low-pressure steam user 8.Paper mill or printing and dyeing mill 6 pass through the first low-pressure steam pipe network 401 and the first low pressure
Steam user 7 connects.
Drawn gas condensate pump 2, three including mesohigh saturated steam generator 1, secondary circuit the inside of large commercial nuclear power plant
Loop feed pump 3, steam reheating heater 4, the main feedwater of nuclear power station secondary loop main steam system pipeline 101, nuclear power station secondary loop
Draw gas isolating valve 202, secondary circuit main steam of system pipeline 102, secondary circuit main steam extraction line 201, secondary circuit main steam is taken out
Vapour conveyance conduit 203, secondary circuit draw gas condensing water conduit 204, secondary circuit draw gas condensate conveyance conduit 205, three loops feedwater
Pipeline 301, three loops feedwater conveyance conduit 302, three loop mesohigh saturated vapor pipelines 303 and steam reheating heater thermal source
501.One end of secondary circuit main steam system pipeline 101 connects with nuclear power station steam generator, the other end and steam turbine for nuclear power station
High pressure cylinder is connected, and middle part connects with one end of secondary circuit main steam extraction line 201.Secondary circuit main feed system pipeline 102
One end connects with the main feed-water intake of nuclear power station steam generator, the other end and nuclear power station main feed pump outlet, middle part and two
Loop draw gas condensate conveyance conduit 205 one end connection.The other end of secondary circuit main steam extraction line 201 passes through secondary circuit
Main steam draw gas one end of conveyance conduit 203 of isolating valve 202 and secondary circuit main steam of drawing gas connects.The secondary circuit condensate that draws gas is defeated
The other end of pipeline 205 is sent to be connected by secondary circuit draw gas one end of condensing water conduit 204 of condensate pump 2 and secondary circuit of drawing gas.
Three loop feedwater pipings 301 are connected by one end of three loop feed pumps 3 and three loops feedwater conveyance conduit 302.Mesohigh is satisfied
Connected with the other end of three loops feedwater conveyance conduit 302 with three loop feed-water intakes of steam generator 1, three loop mesohighs
Saturated vapor is exported and connected with one end of three loop mesohigh saturated vapor pipelines 303, secondary circuit mesohigh steam inlet and two
Loop main steam is drawn gas the other end connection of conveyance conduit 203, and mesohigh steam condensation water out and secondary circuit draw gas condensate
The other end connection of pipeline 204.The entrance of steam reheating heater 4 is another with three loop mesohigh saturated vapor pipelines 303
End connection, outlet is connected with the input of the three long-range conveyance conduits 304 of loop mesohigh superheated steam.Steam reheating heater heat
Source 501 is arranged on steam reheating heater 4.
Large commercial nuclear power plant is public more than or equal to five with the vapor transmission distance of Small-scale Heat Power Plant 5, paper mill or printing and dyeing mill 6
In.
A kind of remote region heat energy Supply Method of large commercial nuclear energy mesohigh steam, uses above-mentioned supply system, tool
Body step is as follows：
Step 1：The heat produced in large commercial nuclear power plant inner core reactor fission energy warms is gathered in secondary circuit
Main steam system is transmitted, and part is extracted from nuclear power station secondary loop main steam system by secondary circuit main steam extraction line 201
Main steam, draws gas isolating valve 202 by secondary circuit main steam, is drawn gas conveyance conduit 203 by secondary circuit main steam, high in
Pressure saturated steam generator 1 heats the water in three loops, produces temperature, pressure to be less than nuclear power station secondary loop main steam system pipeline
101 and secondary circuit main steam extraction line 201 in mesohigh saturated vapor；
Step 2：The nuclear power station secondary loop main steam extracted using step 1 is discharged by mesohigh saturated steam generator 1
The water of energy coagulation, condensing water conduit 204 is drawn gas by secondary circuit and secondary circuit draws gas condensate pump 2, is pumped by pipeline 205
Return nuclear power station secondary loop main feed system pipeline 102；
Step 3：Three Loop Waters from three loop feedwater pipings 301, by three loop feed pumps 3, give by three loops
Water conveyance conduit 302, mesohigh saturated steam generator 1 is delivered to by water pump；Wherein, secondary circuit main steam and three Loop Waters are in
Heat exchange is only existed in high-pressure saturated steam generator 1, without producing Medium Exchange or ganging up；
Step 4：Three Loop Waters absorb secondary circuit main steam heat by mesohigh saturated steam generator 1, produce three times
Road mesohigh saturated vapor, the temperature and pressure in the steam parameter, i.e. three loop mesohigh saturated vapor pipelines 303, is less than
Nuclear power station secondary loop main steam condition, i.e. nuclear power station secondary loop main steam system pipeline 101 and secondary circuit main steam extraction line
Temperature and pressure in 201；
Step 5：Three loop mesohigh saturated vapors are transported to steam again by three loop mesohigh saturated vapor pipelines 303
Hot heater 4；
Step 6：Three loop mesohigh saturated vapors absorb heat in steam reheating heater 4, are processed to height in overheat
Pressure steam；
Step 7：Steam reheating heater 4 provides thermal source by steam reheating heater thermal source 501；
Step 8：The overheat mesohigh steam heated by steam reheating heater 4 passes through three loop mesohigh superheated steams
Long-range conveyance conduit 304 leaves large commercial nuclear power plant, long-distance sand transport, by the first mesohigh steam dispensing pipe in three loops
Road 305 is transported to Small-scale Heat Power Plant 5, and paper mill or print are delivered to by the second mesohigh steam discharge tube 306 in three loops
Dye-works 6 or other heat energy user, long-distance sand transport is at least more than five kilometers；
Step 9：Using gained mesohigh steam in step 8, in small thermal power plant 5 by processing, become low-pressure steam；
Step 10：The low-pressure steam processed by step 9 by the original low-pressure steam pipe network 402 of small thermal power plant 5 or
The newly-built low-pressure steam pipe network of person, is that the small user 8 of the second low-pressure steam provides thermal source, completes nuclear energy and provides the energy at a distance；
Step 11：Using gained mesohigh steam in step 8, in paper mill or printing and dyeing mill 6 by processing, become low pressure steaming
Vapour；
Step 12：The low-pressure steam processed by step 11 passes through the original low-pressure steam pipe network in paper mill or printing and dyeing mill 6
401 or newly-built low-pressure steam pipe network, it is that the small user 7 of the first low-pressure steam provides thermal source, complete nuclear energy and the energy is provided at a distance.
Preferably, in step 1, the position for extracting steam from nuclear power station secondary loop is secondary circuit main steam system pipeline 101.
Preferably, in step 1, real time radiological monitoring is carried out to nuclear power station secondary loop system, finds nuclear power station steam hair
Raw device has leakage, is isolated by isolating valve 202 extract steam immediately, prevents radioactive substance from spreading.
Preferably, in step 5 and 6, three loop saturation mesohigh steam are heated, makes superheated steam, just
In enthalpy steam long-distance sand transport high.
Preferably, in step 7, the supplied heat source 501 of three loop reheating heaters 4 can be heat source gas, can be combustion
Coal thermal source, can be fuel oil thermal source, can be electric power thermal source can also be other energy etc..
Preferably, in step 9, small thermal power plant 5 is generating or decompression to the processing mode of high steam.
Preferably, in step 11, paper mill or printing and dyeing mill 6 are emergency generator or decompression to the processing mode of high steam.
Claims (10)
1. a kind of remote region thermal energy supply system of large commercial nuclear energy mesohigh steam, it is characterised in that：It includes large-scale
First mesohigh steam dispensing pipe in commercial nuclear power plant, the three long-range conveyance conduit of loop mesohigh superheated steams (304), three loops
Second mesohigh steam discharge tube (306), Small-scale Heat Power Plant (5), paper mill or printing and dyeing mill (6) in road (305), three loops,
First low-pressure steam pipe network (401), the second low-pressure steam pipe network (402), the first low-pressure steam user (7) and the second low-pressure steam
User (8)；The input of the three long-range conveyance conduit of loop mesohigh superheated steams (304) and the output end of large commercial nuclear power plant
Connection, output end respectively with the second mesohigh steam in the first mesohigh steam discharge tube (305) in three loops and three loops
The input connection of discharge tube (306)；The output end connection of the first mesohigh steam discharge tube (305) is small-sized in three loops
Steam power plant (5)；The output end of the second mesohigh steam discharge tube (306) is connected with paper mill or printing and dyeing mill (6) in three loops；
Small-scale Heat Power Plant (5) is connected by the second low-pressure steam pipe network (402) with the second low-pressure steam user (8)；Paper mill or printing and dyeing
Factory (6) is connected by the first low-pressure steam pipe network (401) with the first low-pressure steam user (7).
2. the remote region thermal energy supply system of large commercial nuclear energy mesohigh steam according to claim 1, its feature
It is：The inside of described large commercial nuclear power plant includes that mesohigh saturated steam generator (1), secondary circuit draw gas condensate pump
(2), three loop feed pumps (3), steam hot heater (4), nuclear power station secondary loop main steam system pipeline (101), nuclear power station again
Secondary circuit main feed system pipeline (102), secondary circuit main steam extraction line (201), secondary circuit main steam are drawn gas isolating valve
(202), secondary circuit main steam draw gas condensing water conduit (204), the secondary circuit of conveyance conduit (203), secondary circuit that draw gas draws gas condensation
Water conveyance conduit (205), three loop feedwater pipings (301), three loops feedwater conveyance conduit (302), three loop mesohigh saturations
Jet chimney (303) and steam reheating heater thermal source (501)；One end of secondary circuit main steam system pipeline (101) and nuclear power
Steam generator of standing is connected, and the other end connects with steam turbine for nuclear power station high pressure cylinder, middle part and secondary circuit main steam extraction line
(201) one end connection；One end of secondary circuit main feed system pipeline (102) connects with the main feed-water intake of nuclear power station steam generator
Logical, the other end and nuclear power station main feed pump outlet, draw gas one end of condensate conveyance conduit (205) of middle part and secondary circuit connect
It is logical；The other end of secondary circuit main steam extraction line (201) is drawn gas isolating valve (202) and secondary circuit master by secondary circuit main steam
Steam draw gas conveyance conduit (203) one end connection；Secondary circuit draw gas condensate conveyance conduit (205) the other end pass through two times
Road draw gas one end of condensing water conduit (204) of condensate pump (2) and secondary circuit of drawing gas connects；Three loop feedwater pipings (301) lead to
Three loop feed pumps (3) are crossed to be connected with the one end in three loops feedwater conveyance conduit (302)；Mesohigh saturated steam generator (1)
The other end in three loop feed-water intakes and three loops feedwater conveyance conduit (302) connect, three loop mesohigh saturated vapors go out
Mouthful connected with the one end in three loops mesohigh saturated vapor pipeline (303), secondary circuit mesohigh steam inlet and the main steaming of secondary circuit
Vapour draws gas the other end connection of conveyance conduit (203), and mesohigh steam condensation water out and secondary circuit draw gas condensing water conduit
(204) other end connection；The entrance of hot heater (4) is another with three loops mesohigh saturated vapor pipeline (303) again for steam
One end is connected, and outlet is connected with the input of the three long-range conveyance conduit of loop mesohigh superheated steams (304)；Steam reheating is heated
Device thermal source (501) is arranged on steam again on hot heater (4).
3. the remote region thermal energy supply system of large commercial nuclear energy mesohigh steam according to claim 1, its feature
It is：Described large commercial nuclear power plant is more than with the vapor transmission distance of Small-scale Heat Power Plant (5), paper mill or printing and dyeing mill (6)
Equal to five kilometers.
4. a kind of remote region heat energy Supply Method of large commercial nuclear energy mesohigh steam, it is characterised in that：It is used as weighed
Profit requires the supply system described in 2, comprises the following steps that：
Step 1：The heat produced in large commercial nuclear power plant inner core reactor fission energy warms is gathered in the main steaming of secondary circuit
Vapour system is transmitted, and extracts part master from nuclear power station secondary loop main steam system by secondary circuit main steam extraction line (201)
Steam, draws gas isolating valve (202) by secondary circuit main steam, is drawn gas conveyance conduit (203) by secondary circuit main steam, in
High-pressure saturated steam generator (1) heats the water in three loops, produces temperature, pressure to be less than nuclear power station secondary loop main steam system
Mesohigh saturated vapor in pipeline (101) and secondary circuit main steam extraction line (201)；
Step 2：The nuclear power station secondary loop main steam extracted using step 1 discharges energy by mesohigh saturated steam generator (1)
The water for condensing is measured, condensing water conduit (204) is drawn gas by secondary circuit and secondary circuit is drawn gas condensate pump (2), by pipeline (205)
Pumped back nuclear power station secondary loop main feed system pipeline (102)；
Step 3：Three Loop Waters from three loop feedwater pipings (301), by three loop feed pumps (3), give by three loops
Water conveyance conduit (302), mesohigh saturated steam generator (1) is delivered to by water pump；Wherein, secondary circuit main steam and three Loop Waters
Heat exchange is only existed in mesohigh saturated steam generator (1), without producing Medium Exchange or ganging up；
Step 4：Three Loop Waters absorb secondary circuit main steam heat by mesohigh saturated steam generator (1), produce three loops
Mesohigh saturated vapor, the temperature and pressure in the steam parameter, i.e. three loops mesohigh saturated vapor pipeline (303), is less than
Nuclear power station secondary loop main steam condition, i.e. nuclear power station secondary loop main steam system pipeline (101) and secondary circuit main steam extraction steam pipe
Temperature and pressure in road (201)；
Step 5：Three loop mesohigh saturated vapors are transported to steam reheating by three loops mesohigh saturated vapor pipeline (303)
Heater (4)；
Step 6：In steam, hot heater (4) absorbs heat to three loop mesohigh saturated vapors again, is processed to overheat mesohigh
Steam；
Step 7：Hot heater (4) provides thermal source to steam by steam reheating heater thermal source (501) again；
Step 8：It is remote by three loop mesohigh superheated steams by the steam overheat mesohigh steam that hot heater (4) is heated again
Journey conveyance conduit (304) leaves large commercial nuclear power plant, long-distance sand transport, by the first mesohigh steam dispensing pipe in three loops
Road (305) is transported to Small-scale Heat Power Plant (5), and papermaking is delivered to by the second mesohigh steam discharge tube (306) in three loops
Factory or printing and dyeing mill (6) or other heat energy user, long-distance sand transport is at least more than five kilometers；
Step 9：Using gained mesohigh steam in step 8, in small thermal power plant (5) by processing, become low-pressure steam；
Step 10：The low-pressure steam processed by step (9) passes through the original low-pressure steam pipe network (402) of small thermal power plant (5)
Or newly-built low-pressure steam pipe network, it is that the small user of the second low-pressure steam (8) provides thermal source, complete nuclear energy and the energy is provided at a distance；
Step 11：Using gained mesohigh steam in step 8, in paper mill or printing and dyeing mill (6) by processing, become low pressure steaming
Vapour；
Step 12：The low-pressure steam processed by step 11 passes through the original low-pressure steam pipe network in paper mill or printing and dyeing mill (6)
(401) it is or newly-built low-pressure steam pipe network, that the small user of the first low-pressure steam (7) provides thermal source, completes nuclear energy and provide at a distance
The energy.
5. the remote region thermal energy supply system of large commercial nuclear energy mesohigh steam according to claim 4, its feature
It is：In described step 1, the position for extracting steam from nuclear power station secondary loop is secondary circuit main steam system pipeline (101).
6. the remote region thermal energy supply system of large commercial nuclear energy mesohigh steam according to claim 4, its feature
It is：In described step 1, real time radiological monitoring is carried out to nuclear power station secondary loop system, find nuclear power station steam generator
There is leakage, isolated by isolating valve (202) extract steam immediately, prevent radioactive substance from spreading.
7. the remote region thermal energy supply system of large commercial nuclear energy mesohigh steam according to claim 4, its feature
It is：In described step 5 and 6, three loop saturation mesohigh steam are heated, make superheated steam, be easy to height
Enthalpy steam long-distance sand transport.
8. the remote region thermal energy supply system of large commercial nuclear energy mesohigh steam according to claim 4, its feature
It is：In described step 7, the supplied heat source (501) of three loops hot heater (4) again is using heat source gas, coal-fired thermal source, combustion
Oily thermal source, electric power thermal source or other energy modes are realized.
9. the remote region thermal energy supply system of large commercial nuclear energy mesohigh steam according to claim 4, its feature
It is：In described step 9, small thermal power plant (5) is generating or decompression to the processing mode of high steam.
10. the remote region thermal energy supply system of large commercial nuclear energy mesohigh steam according to claim 4, its feature
It is：In described step 11, paper mill or printing and dyeing mill (6) are emergency generator or decompression to the processing mode of high steam.
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