CN104990425A - Nuclear power plant solar energy auxiliary indirect air cooling system for arid areas - Google Patents
Nuclear power plant solar energy auxiliary indirect air cooling system for arid areas Download PDFInfo
- Publication number
- CN104990425A CN104990425A CN201510268071.4A CN201510268071A CN104990425A CN 104990425 A CN104990425 A CN 104990425A CN 201510268071 A CN201510268071 A CN 201510268071A CN 104990425 A CN104990425 A CN 104990425A
- Authority
- CN
- China
- Prior art keywords
- flow pipe
- air cooling
- main flow
- solar energy
- nuclear power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses a nuclear power plant solar energy auxiliary indirect air cooling system for arid areas. The system comprises a circulation cooling device and an air cooling device. The circulation cooling device comprises a high-temperature main flow pipe, a low-temperature main flow pipe, a high-temperature branch flow pipe, a low-temperature branch flow pipe, and a group of unit type air coolers arranged between the high-temperature branch flow pipe and the low-temperature branch flow pipe. The air cooling deice comprises an air cooler drainage tower, a solar cell panel, a solar cell panel support, a working bench, a DC-AC converter, an AC connecting device and an auxiliary power bus. The auxiliary power bus is connected to a first induced draught fan and a second induced draught fan respectively through a first switch and a second switch. The induced draught fans are vertically arranged, and are arranged below the air cooler drainage tower. The unit type air coolers are arranged on the outer side of the induced draught fans. By the use of the solar energy auxiliary system, flexible adjustment between solar energy power supply and other auxiliary power supply can be achieved, the relation between energy and loads is coordinated, and the stability of the power of the induced draught fans is guaranteed.
Description
Technical field
Patent of the present invention belongs to energy field, is specifically related to a kind of nuclear power plant's solar energy secondary indirect air cooling system being applied to arid area.
Background technology
The energy resource structure of China for a long time based on coal, be the bottleneck of restriction economy and society development, the various energy resources comprehensive developments such as nuclear energy, solar energy, wind energy are the Major Strategics of China's Energy restructuring.Southeastern coast one band mainly built in by current nuclear power station, relies on to take out to draw seawater and directly cool turbine discharge.But southeastern coast is economically developed, the density of population is high, once nuclear power plant has an accident will cause major disaster to surrounding area.The direct water-cooling method that nuclear power plant of current China adopts needs a large amount of water resources, and seawater is directly connected with nuclear power plant secondary circuit, once nuclear power plant leaks, radioactive substance just can flow in seawater, direct polluted seawater.So the addressing of following nuclear power plant will tend to the low area of population density, as NORTHWEST CHINA area.
Current domestic existing a lot of expert inquires into the feasibility of building nuclear power plant in water-deficient area, northwest, but cooling problem is a key factor of its development of restriction.From the second law of thermodynamics, the cooling effect of low-temperature receiver is better, and the economy of unit is better.The type of cooling main at present has: the cooling of Air flow, cooling tower, steam cooling and open water cooling etc.In the arid area of serious water shortage, three kinds of types of cooling except Air flow are all infeasible.Air flow, relative to other three kinds of types of cooling, not only can be saved great lot of water resources, and have greater advantage in operating maintenance expense, Environmental capacity etc., so be the ideal style of arid area nuclear power plant steam cooling at Air flow.But nuclear power plant requires that unit operation has higher stability, the temperature fluctuation of direct aerial cooler cooling medium is larger, and cooler relates to water, steam, air three kinds of media, principle more complicated, and once leak, radioactive substance will be directly released in air, be unfavorable for the security of nuclear power generating sets.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of nuclear power plant's solar energy secondary indirect air cooling system being applied to arid area, realize mating of energy and load, while guarantee security, improve the economy that nuclear power plant runs.
Technical scheme: for solving the problems of the technologies described above, nuclear power plant's solar energy secondary indirect air cooling system of a kind of arid area of the present invention, comprise cooling back installation and one group of air cooling device unit, described cooling back installation comprises high temperature main flow pipe, low temperature main flow pipe, the one group of high temperature tributary be connected with high temperature main flow pipe is managed, the one group of low temperature tributary be connected with low temperature main flow pipe manage and one group be located at high temperature tributary respectively and manage modular aerial cooler between the pipe of low temperature tributary, described high temperature main flow pipe, low temperature main flow pipe, high temperature tributary is managed, low temperature main flow pipe, modular aerial cooler composition primary Ioops, described air cooling device unit comprises the aerial cooler drainage tower (1), solar battery apparatus, direct-current-alternating-current converter, interchange jockey, the station service bus that are connected successively, described station service bus is connected with the first air-introduced machine, the second air-introduced machine respectively by the first switch, second switch, described air-introduced machine is for being arranged vertically, be placed in the below of aerial cooler drainage tower, arrangement unit formula aerial cooler outside air-introduced machine, corresponding two the modular aerial coolers of described each air cooling device unit.。
Further, described modular aerial cooler comprises finned-tube bundle, is located at the distribution bobbin carriage at finned-tube bundle two ends respectively and collects bobbin carriage, be provided with a hot junction choke valve between described finned-tube bundle two ends and high temperature tributary pipe, be provided with a cold junction between finned-tube bundle and low temperature tributary pipe and save choke valve.
Further, described high temperature main flow pipe and low temperature main flow pipe intersection are provided with a surface condenser.
Further, described surface condenser is connected with steam turbine.
Further, describedly a water circulating pump is provided with at high temperature main flow pipe or on low temperature main flow pipe.
Further, describedly on modular aerial cooler, be provided with deep bead, the hot blast flowing through modular aerial cooler flows in aerial cooler drainage tower with certain inclination angle through deep bead, improves the flow field in aerial cooler drainage tower, strengthens the effect of heat convection.
Further, the pipeline be connected with surface condenser is provided with a condensate pump.
Further, described solar battery apparatus comprises solar panel, is arranged on solar battery bracket below solar panel, is arranged on the base below support and is located at the solar cell working platform on solar panel.
In the present invention, indirect air cooler can meet the demand such as stable cooling, isolation radioactive substance well.There is abundant solar energy resources the Northwest, and along with the development of technology, the cost of solar electrical energy generation is also more and more lower, particularly in the higher area of solar energy year amount of radiation.And the Northwest's daytime temperature is high, cooling load is large, and solar energy enriches; Evening, temperature was low, and cooling load is little, and solar energy is poor.So the blower fan of aerial cooler can by the station service bussed supply of solar energy auxiliary power supply, realize mating of load and energy, improve the economy of indirect air cooler.
After the steam that Steam Generators in NPP is discharged does work in steam turbine, need to carry out cooling and trapping medium to steam discharge, deliver in steam generator continue generating steam through condensate pump, feed pump, thus realize the circulation of working medium and energy.Stablizing and the recovering medium cleaned to make the condensation effect of condenser, adopting surface condenser to cool unit steam.The high-temperature water flowed out in condenser is assigned in different modular aerial coolers by high temperature main flow pipe, high temperature tributary and thrift lock, and high-temperature water flows to after in aerial cooler, first flows through distribution bobbin carriage, is assigned in finned-tube bundle arranged vertically by medium.In order to strengthen cooling effect, modular aerial cooler along aerial cooler drainage tower circumferential array, and is equipped with air-introduced machine with certain inclination angle inside modular aerial cooler, strengthens the flowing of cooling air; The hot blast flowing through aerial cooler flows in aerial cooler drainage tower through acclivitous deep bead, makes the hot blast in drainage tower increase in the mode of eddy flow like this, improves the flow field in drainage tower; And take heat to high-altitude, decrease the interference between cooling unit, thus strengthen cooling effect.High-temperature water flows through tube bank after cooling, is pooled to and collects in bobbin carriage, is pooled to low temperature tributary pipe, and then flows into low temperature main flow pipe, flow to condenser cool Steam Turbine steam by water circulating pump after being pressurizeed by throttling water valve.In order to improve the effect of aerial cooler, the through-current capability of finned-tube bundle is limited, so need the aerial cooler unit designing multiple parallel connection, is distributed the flow of each aerial cooler unit by throttling water valve.
In order to save the power consumption of id-motor, adopt solar energy auxiliary power supply; In order to save material and floor space, the original framework of aerial cooler is utilized to build solar panels.On daytime, air themperature is higher, and the cooling load of aerial cooler is comparatively large, and solar energy bears part air-introduced machine load.In evening, air themperature is lower, and the cooling load of aerial cooler is less, cuts off part air-introduced machine successively when not having solar energy auxiliary power supply, realizes mating of load and energy; Owing to being close air-introduced machine successively, during fluid chemical field, the larger temperature difference can not be produced, be unlikely to the cooling performance having influence on aerial cooler.
Beneficial effect: the present invention in terms of existing technologies, possesses following advantage:
1) design arid area nuclear power plant steam cooling system, make to become possibility in low population density's regional Construction nuclear power plant, reduce the disaster-stricken crowd of nuclear power plant's accident.
2) adopt surface condenser to the steam discharge of Steam Turbine, this technology is comparatively ripe, stably can cool nuclear power generating sets, improves the stability of unit, and the recovery nuclear power plant secondary circuit working medium that can clean, improve the economy of unit.
3) aerial cooler is adopted to cool condenser cooling agent, thus realize recycling of working medium, save water resource, and by method that indirect type cools, improve the degree of isolation of nuclear power generating sets and external environment, even if condenser leaks, radioactive substance also can not be directly released in environment.
4) utilize solar energy-assisted system, realize the flexible modulation of solar energy auxiliary power supply and station service, and coordinated the relation between energy and load, ensure that the stability of air-introduced machine power.
5) build nuclear power plant and solar plant association system, the two can be made to share factory building facility and supporting structure, decrease the capital cost of founding the factory respectively, improve economy.
6) because southeastern coast solar energy year amount of radiation is lower, the economy of solar electrical energy generation is lower, therefore Arrested Development; By at arid area nuclear power plant applied solar energy generation technology, open up its application prospect, significant to China's Energy restructuring.
Accompanying drawing explanation
Fig. 1 is hollow cold apparatus structure schematic diagram of the present invention.
Fig. 2 is cooling back installation structural representation in the present invention.
Fig. 3 is cooling tube bundle structural representation of the present invention.
Fig. 4 is air cooling cellular construction schematic diagram of the present invention.
Wherein: 1-aerial cooler drainage tower 2-solar panel 3-direct-current-alternating-current converter 4-exchanges jockey 5-station-service power supply buses 6-finned-tube bundle 7-high load capacity power switch 8-normal power switch 9-air-introduced machine 10-jet chimney 11-steam turbine 12-surface condenser 13-condensate pump 14-and distributes bobbin carriage 15-high temperature main flow pipe 16-collection bobbin carriage 17-hot junction throttling water valve 18-cold junction choke valve 19-low temperature main flow pipe 20-water circulating pump 21-high temperature tributary pipe 22-low temperature tributary pipe 23-solar-cell panel support 24-solar panel base 25-workbench 26-modular aerial cooler 27-deep bead.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, solar energy is than time more rich by day, and the direct current that solar panel 2 produces becomes after direct-current-alternating-current converter 3 rectification applies alternating current easily, and its electric energy is fed in station service power supply buses 5 by exchanging jockey 4.High load capacity power switch 7 closes, and normal power switch 8 closes, and all air-introduced machines 9 work simultaneously, forced convertion is distinguished and admirable after modular aerial cooler 26, flow in aerial cooler drainage tower 1, by the lift of hot blast and the forced ventilation effect of air-introduced machine 9, hot blast is raised to high-altitude and the heat that dissipates.At night, high load capacity power switch 7 disconnects, and normal power switch 8 closes, and now solar panel 1 does not produce electric energy substantially, and cooling load is lower, so breaking part air-introduced machine 9 successively.Absolute bound due to evening on daytime is difficult to determine, needs the concrete time determining switch motion according to the actual conditions of locality.
As shown in Figures 2 and 3: after doing work in steam turbine 11 from the steam of steam generator, steam discharge is through surface condenser condensation 12, and condensation flow flows into steam generator after condensate pump 13 pressurizes, and continues to produce steam acting.High-temperature cooling medium in condenser flows out condenser through high temperature main flow pipe 15, is assigned in the distribution bobbin carriage 14 of multiple parallel connection by high temperature tributary pipe 21 and hot junction choke valve 17, and flows into finned-tube bundle 6 by distribution bobbin carriage 14.First collect in collection bobbin carriage 16 through overcooled water at low temperature, then flow into low temperature main flow pipe 19 by cold junction choke valve 18, low temperature tributary pipe 22, after water circulating pump 20 pressurizes, flow to surface condenser 12 pairs of unit steam discharges cool.
As shown in Figure 4, modular aerial cooler 26 along circumferential array below aerial cooler drainage tower 1, and is equipped with air-introduced machine 9 with certain inclination angle inside modular aerial cooler 26, strengthens the flowing of cooling air; The hot blast flowing through modular aerial cooler 26 flows in aerial cooler drainage tower 1 through acclivitous deep bead 27, the hot blast in aerial cooler drainage tower 1 is made to increase in the mode of eddy flow like this, improve the flow field in aerial cooler drainage tower 1, strengthen cooling effect.And build solar-cell panel support 23 on the framework basis of aerial cooler drainage tower 1, and have solar panel base 24 at solar-cell panel support 23.Because the height of aerial cooler drainage tower 1 is higher, solar panel 2 is built at solar-cell panel support 23 higher slice according to local sunlight angle, and workbench 25 is left between two pieces of solar panels, facilitate building and keeping in repair of solar panel.
Determine the quantity of normal power switch 8 according to average cooling load in evening, according to maximum possible load determination on daytime total number of switches amount, the quantity of high load capacity power switch 7 is then the difference of the two.When night, cooling load was larger, can optionally closing section high load capacity power switch 7.So not only can meet the demand of peak load, the flexible switching of energy can also be realized, reduce the waste of equipment.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. nuclear power plant's solar energy secondary indirect air cooling system of an arid area, it is characterized in that: comprise cooling back installation and one group of air cooling device unit, described cooling back installation comprises high temperature main flow pipe (15), low temperature main flow pipe (19), the one group of high temperature tributary be connected with high temperature main flow pipe (15) is managed (21), the one group of low temperature tributary be connected with low temperature main flow pipe (19) is managed (22) and one group and is located at high temperature tributary respectively and manages (21) and low temperature tributary and manage modular aerial cooler (26) between (19), described high temperature main flow pipe (15), low temperature main flow pipe (19), high temperature tributary pipe (21), low temperature main flow pipe (19), modular aerial cooler (26) composition primary Ioops, described air cooling device unit comprises the aerial cooler drainage tower (1) be connected successively, solar battery apparatus, direct-current-alternating-current converter (3), exchange jockey (4), station service bus (5), described station service bus is by the first switch (7), second switch (8) respectively with the first air-introduced machine, second air-introduced machine is connected, described air-introduced machine (9) is for being arranged vertically, be placed in the below of aerial cooler drainage tower (1), air-introduced machine (9) outside arrangement unit formula aerial cooler (26), corresponding two the modular aerial coolers of described each air cooling device unit.
2. nuclear power plant's solar energy secondary indirect air cooling system of arid area according to claim 1, it is characterized in that: described modular aerial cooler comprises finned-tube bundle (6), is located at the distribution bobbin carriage (14) at finned-tube bundle (6) two ends respectively and collects bobbin carriage (16), described finned-tube bundle (6) two ends and high temperature tributary are managed between (21) and are provided with a hot junction choke valve, and finned-tube bundle (6) and low temperature tributary are managed between (19) and be provided with a cold junction choke valve (18).
3. nuclear power plant's solar energy secondary indirect air cooling system of arid area according to claim 1, is characterized in that: described high temperature main flow pipe (15) and low temperature main flow pipe (19) intersection are provided with a surface condenser (12).
4. nuclear power plant's solar energy secondary indirect air cooling system of arid area according to claim 3, is characterized in that: described surface condenser (12) is connected with steam turbine (11).
5. nuclear power plant's solar energy secondary indirect air cooling system of arid area according to claim 1, is characterized in that: be describedly provided with a water circulating pump (20) at high temperature main flow pipe (15) or on low temperature main flow pipe (19).
6. nuclear power plant's solar energy secondary indirect air cooling system of arid area according to claim 1, is characterized in that: described modular aerial cooler (26) is provided with deep bead (27).
7. nuclear power plant's solar energy secondary indirect air cooling system of arid area according to claim 3, is characterized in that: the pipeline be connected with surface condenser is provided with a condensate pump (13).
8. nuclear power plant's solar energy secondary indirect air cooling system of arid area according to claim 1, is characterized in that: described solar battery apparatus comprises solar panel (2), the solar battery bracket (23) that is arranged on solar panel (2) below, the solar cell working platform (25) that is arranged on the base (24) below support and is located on solar panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510268071.4A CN104990425B (en) | 2015-05-22 | 2015-05-22 | A kind of arid area nuclear power plant solar energy secondary indirect air cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510268071.4A CN104990425B (en) | 2015-05-22 | 2015-05-22 | A kind of arid area nuclear power plant solar energy secondary indirect air cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104990425A true CN104990425A (en) | 2015-10-21 |
| CN104990425B CN104990425B (en) | 2017-03-15 |
Family
ID=54302269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510268071.4A Expired - Fee Related CN104990425B (en) | 2015-05-22 | 2015-05-22 | A kind of arid area nuclear power plant solar energy secondary indirect air cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104990425B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649900A (en) * | 2016-03-10 | 2016-06-08 | 北京首航艾启威节能技术股份有限公司 | System for efficiently reducing auxiliary power of molten-salt tower type solar photo-thermal power generation station |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5952191A (en) * | 1982-09-17 | 1984-03-26 | Toshiba Corp | Condenser |
| JPS59180281A (en) * | 1983-03-30 | 1984-10-13 | Mitsubishi Heavy Ind Ltd | Condenser |
| CN101858626A (en) * | 2010-06-04 | 2010-10-13 | 西安工程大学 | Capillary radiation air-conditioning system combining solar with evaporative cooling |
| CN104457310A (en) * | 2014-10-08 | 2015-03-25 | 东南大学 | Novel indirect type air cooling device for nuclear power plant |
-
2015
- 2015-05-22 CN CN201510268071.4A patent/CN104990425B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5952191A (en) * | 1982-09-17 | 1984-03-26 | Toshiba Corp | Condenser |
| JPS59180281A (en) * | 1983-03-30 | 1984-10-13 | Mitsubishi Heavy Ind Ltd | Condenser |
| CN101858626A (en) * | 2010-06-04 | 2010-10-13 | 西安工程大学 | Capillary radiation air-conditioning system combining solar with evaporative cooling |
| CN104457310A (en) * | 2014-10-08 | 2015-03-25 | 东南大学 | Novel indirect type air cooling device for nuclear power plant |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649900A (en) * | 2016-03-10 | 2016-06-08 | 北京首航艾启威节能技术股份有限公司 | System for efficiently reducing auxiliary power of molten-salt tower type solar photo-thermal power generation station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104990425B (en) | 2017-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204254930U (en) | The municipal sewage cooling heating and power generation system of coupling multiple renewable energy sources | |
| CN202532587U (en) | System for recycling condensation heat from power plant for building heating by using heat pump | |
| CN201757455U (en) | Wind electric power-generation power-supply heat-supply system | |
| CN202221124U (en) | Central heating system with low-temperature backwater | |
| CN105676819A (en) | Multi-energy optimized configuration system and multi-energy optimized operation method | |
| CN102297467A (en) | Centralized heat supply system for low-temperature backwater | |
| CN106839513A (en) | Electric power plant circulating water residual heat pump utilizes the energy conserving system combined with natural water accumulation of heat | |
| Kyriaki et al. | Energy and environmental performance of solar thermal systems in hotel buildings | |
| CN106969398A (en) | Steam power plant provides multiple forms of energy to complement each other in region energy micro-grid system | |
| CN112344416A (en) | City energy supply system | |
| CN105409642A (en) | Wind-and-light-complementary-power-generation zero-discharge greenhouse system | |
| CN106016767A (en) | Gradient solar heat energy utilization system with energy storage function and use method thereof | |
| CN201874657U (en) | Radiator of gas generator set | |
| CN104896640A (en) | Renewable energy refrigeration system and method | |
| CN104534638A (en) | Heat recovery system and method for data center | |
| CN104990425A (en) | Nuclear power plant solar energy auxiliary indirect air cooling system for arid areas | |
| KR20100013129A (en) | Geothermal heat pump unit | |
| KR101829862B1 (en) | The system for cooling of solar cell and heating of city water by geothermal heat | |
| CN202813542U (en) | Waste heat extracting and heat supply stepped heating system in power plant | |
| CN203274016U (en) | Wind power generation power supply and heat supply system | |
| CN213746958U (en) | City energy supply system | |
| CN204047378U (en) | A kind of zero-emission greenhouse apparatus of wind light mutual complementing power generation | |
| CN212626794U (en) | Environment-friendly solar energy distributed substation | |
| CN105813436B (en) | The driving evaporation cooling and energy conserving device of outdoor LED display screen heat transmission photovoltaic | |
| CN203130377U (en) | Temperature difference ventilation power generation system for bottom layer of high-rise building |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20200522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |