CN105674760A - Joint air-cooling system and control method - Google Patents
Joint air-cooling system and control method Download PDFInfo
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- CN105674760A CN105674760A CN201610165599.3A CN201610165599A CN105674760A CN 105674760 A CN105674760 A CN 105674760A CN 201610165599 A CN201610165599 A CN 201610165599A CN 105674760 A CN105674760 A CN 105674760A
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- air
- cooling
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- driven valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/06—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D11/00—Feed-water supply not provided for in other main groups
- F22D11/02—Arrangements of feed-water pumps
- F22D11/06—Arrangements of feed-water pumps for returning condensate to boiler
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/005—Auxiliary systems, arrangements, or devices for protection against freezing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention provides a joint air-cooling system and a control method. The joint air-cooling system comprises a steam turbine, an indirect cooling condenser and a condensation water precision processing unit. A generator is connected to the steam turbine. A direct air-cooling unit is a direct air-cooling radiator. An inlet of the direct air-cooling radiator is connected with the steam turbine, and an outlet of the direct air-cooling radiator is connected with the condensation water precision processing unit. A multi-level heater is connected to the condensation water precision processing unit. An inlet of the indirect cooling condenser is connected with the steam turbine, and an outlet of the indirect cooling condenser is connected with the multi-level heater. The indirect cooling condenser is further connected with an indirect air-cooling unit. According to the joint air-cooling system and the control method, exhausted steam of the steam turbine is distributed, a part of the exhausted steam of the steam turbine enters a direct air-cooling condenser to be subjected to heat exchanging, and the other part of the exhausted steam of the steam turbine enters the indirect cooling condenser to be subjected to heat exchanging; the back pressure of the exhausted steam of the steam turbine can be further reduced through a composite circulation cooling system, the vacuum of a machine set is improved, and then the economy of the machine set is improved.
Description
Technical field
The present invention relates to the construction of a kind of thermal power plant Air-cooled Unit, " upper large pressure is little " machine set technology transformation and adverse circumstances areaThe transformation of coal fired power generation machine set technology, is specifically related to a kind of associating air cooling system and control method.
Background technology
In recent years, Air-cooled Unit abroad and China northeast, North China, the Northwest be developed rapidly, comparatively speaking,Air-cooled Unit reaches 80% than traditional clammy unit water-saving rate, demonstrates great advantage in rich coal water-deficient area. But, due toIn the situation that summer, environment temperature was higher, Direct Air-cooled Unit is because back pressure is compared with high and can not be with at full capacity, in electricity needsLarge time, occur the situation that unit output is inadequate, cause unit operation economy poor, and back pressure is high has wasted due to selfMore electricity volume. In addition, in winter underload or unit starting and stoppage in transit, very easily occur because Direct Air-Cooled throttle flow is littleFreeze, also totally unfavorable to unit vacuum and on-load ability, the bursting by freezing that air-cooled heat exchanger also easily occurs damages.
Summary of the invention
For overcoming the problems of the prior art, the object of the present invention is to provide a kind of associating air cooling system and control method,This cooling system can really be realized the air cooled object of turbine discharge in improving unit vacuum, is environmental protectionGive play to the advantage of Air-cooled Unit.
For achieving the above object, the present invention adopts following technical scheme:
A kind of associating air cooling system, comprises steam turbine, indirect cooling condenser and condensate fine processing unit, and steam turbine is connected withGenerator, Direct Air-Cooled unit is radiator of direct air-cooling, radiator of direct air-cooling entrance is connected with steam turbine, exports and condensesCrystal's processing unit is connected, and condensate fine processing unit is connected with Multi-stage heating device; Indirect cooling condenser entrance and steam turbine phaseConnect, outlet is connected with Multi-stage heating device; Indirect cooling condenser is also connected with indirect air cooling unit.
Described radiator of direct air-cooling porch is provided with the first motor-driven valve, the second motor-driven valve, exit be provided with the 3rd motor-driven valve,The 4th motor-driven valve, the 5th motor-driven valve, the 6th motor-driven valve.
Described the 3rd motor-driven valve, the 4th motor-driven valve, the 5th motor-driven valve, the 6th motor-driven valve are all connected with indirect air cooling condensate pump,Indirect air cooling condensate pump is connected with condensate fine processing unit.
Described radiator of direct air-cooling comprises some air cooled fin tubes; Install additional in Direct Air-Cooled unit and porch, indirect air cooling unitThere is the nitrogen of filling interface.
Described Multi-stage heating device comprises connected primary heater, secondary heater and the 3rd heater, primary heater with condenseCrystal's processing unit is connected, and the 3rd heater is also connected with boiler economizer.
Described radiator of direct air-cooling below is provided with Air-Cooling Island blower fan group; Described Air-Cooling Island blower fan group comprises by some the first air coolingsThe emptying air-cooler of N row N that blower fan and the second air cooling blower fan combine.
Described Air-Cooling Island blower fan group bottom installs the first anti-wind net additional, and Air-Cooling Island blower fan group top installs the second anti-wind net additional.
Porch, described Direct Air-Cooled unit is provided with air cooling unit group entrance expansion joint, and establish in air cooling heat-sink unit condensate water exitBe equipped with air cooling unit group outlet expansion joint.
Described indirect air cooling unit is indirect dry cooling tower, has installed the first windbreak additional at indirect air cooling tower bottom, and top installs second additionalWindbreak.
Combine a control method for air cooling system, a turbine discharge part enters Direct Air-Cooled unit, in Direct Air-Cooled unitImport department arranges the first motor-driven valve, the second motor-driven valve, exit, Direct Air-Cooled unit also arrange the 3rd motor-driven valve, the 4th motor-driven valve,The 5th motor-driven valve, the 6th motor-driven valve, steam discharge forms condensate water after Direct Air-Cooled unit condenses, and condensate water is coagulated by Direct Air-CooledBear water after pump is transported to condensate fine processing unit and enter heaters at different levels; Between another part turbine discharge enters through non-return valveConnect air cooling tubes condenser, recirculated water is transported to indirect dry cooling tower by indirect air cooling water circulating pump and carries out secondary heat exchange, turbine dischargeAfter condensing, by indirect air cooling condensate pump, condensate water is delivered to precision processing unit, then enters heaters at different levels and finally enterBoiler economizer.
Compared with prior art, the beneficial effect that the present invention has:
The present invention is by arranging steam turbine, indirect cooling condenser and condensate fine processing unit, and steam turbine is connected with generator,Direct Air-Cooled unit is radiator of direct air-cooling, and radiator of direct air-cooling entrance is connected with steam turbine, outlet and condensate fine processingUnit is connected, and condensate fine processing unit is connected with Multi-stage heating device; Indirect cooling condenser entrance is connected with steam turbine, outletBe connected with Multi-stage heating device; Indirect cooling condenser is also connected with indirect air cooling unit. This cooling system can be by turbine dischargeShunt, a part enters intrinsic direct air cooled condenser and carries out heat exchange, and another part enters indirect air cooling condenser and entersRow heat exchange, this composite cooling system can further reduce turbine discharge back pressure, in improving unit vacuum, really realizesThe air cooled object of turbine discharge, for the due advantage of Air-cooled Unit and feature have been given play in environmental protection.
In the present invention, a turbine discharge part enters Direct Air-Cooled unit, arrange at Direct Air-Cooled unit inlet place the first motor-driven valve,The second motor-driven valve, exit, Direct Air-Cooled unit also arranges the 3rd motor-driven valve, the 4th motor-driven valve, the 5th motor-driven valve, the 6th electronicValve, steam discharge forms condensate water after Direct Air-Cooled unit condenses, and condensate water is transported to condensate fine by Direct Air-Cooled condensate pumpAfter processing unit, enter heaters at different levels; Another part turbine discharge enters indirect air cooling condenser, recirculated water through non-return valveBe transported to indirect dry cooling tower by indirect air cooling water circulating pump and carry out secondary heat exchange, after turbine discharge condenses, pass through indirect air coolingCondensate water is delivered to precision processing unit by condensate pump, then enters heaters at different levels and finally enter boiler economizer. Pass through techniqueControl, this system can also realize unit in the anticorrosion maintenance that stops air cooling apparatus between standby period, and air cooling under load change operating modeThe hydrodynamic characterisitic that heat-sink unit is good, realizes compound air cooling unit safety, economy, continuous, stable, operation efficiently.
Further, in cooling system of the present invention, turbine discharge is shunted, and the steam flow that enters Direct Air-Cooled island subtractsWhat after few, Air-Cooling Blower Variable-Frequency rotating speed can fall is lower, can reduce station service power consumption rate and net coal consumption rate, also effectively reduces air cooling simultaneouslyFan operation noise. Simultaneously this system draught shield and windproof shroud, can effectively reduce variation of ambient temperature and environmentThe impact on Direct Air-Cooled island and indirect dry cooling tower flow field such as crosswind, improves heat exchange efficiency, guarantees to move back pressure.
Further, by be provided with the first motor-driven valve, the second motor-driven valve in radiator of direct air-cooling porch, exit arrangesHave the 3rd motor-driven valve, the 4th motor-driven valve, the 5th motor-driven valve, the 6th motor-driven valve, this system can independently be controlled cooling flow and fortuneRow back pressure, so just can guarantee in the situation that environment temperature is lower the flow behavior of condensate water in air cooling heat radiator, prevents from freezingMelt or freeze make air cooling heat radiator heat transfer deterioration, even damage air cooling apparatus, jeopardize Turbine Safety stable operation.
Further, add and fill nitrogen interface in Direct Air-Cooled unit and porch, indirect air cooling unit, when zone isolation valve is by portionDivide after heat exchange unit isolation, nitrogen filled protection device fills nitrogen to the heat exchange unit of having isolated automatically, fills nitrogen pressure controlled, fromAnd ensure that air cooling heat-sink unit is stopping for subsequent use, maintenance, isolating the security reliability under operating mode temporarily.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is Direct Air-Cooled island windproof structure schematic diagram.
Fig. 3 is indirect dry cooling tower structural representation.
In figure, 1 is steam turbine, and 2 is generator, and 3 is the first motor-driven valve, and 4 is the second motor-driven valve, and 5 is the 3rd motor-driven valve, 6Be the 4th motor-driven valve, 7 is the 5th motor-driven valve, and 8 is the 6th motor-driven valve, and 9 is the first air cooling blower fan, and 10 is the second air cooling blower fan,11 is air cooled fin tube, and 12 is indirect air cooling non-return valve, and 13 is indirect cooler condenser, and 14 is indirect air cooling unit, and 15 areIndirect air cooling water circulating pump, 16 is indirect air cooling condensate pump, and 17 is Direct Air-Cooled condensate pump, and 18 is condensate fine processingUnit, 19 is primary heater, and 20 is secondary heater, and 21 is the 3rd to add device, and 22 is air cooling unit group entrance expansion joint,23 is air cooling unit group outlet expansion joint, and 24 is Direct Air-Cooled island and air cooling blower fan group, and 25 is Air-Cooling Island bottom anti-wind net, 26For Air-Cooling Island top anti-wind net, 27 is indirect dry cooling tower, and 28 is indirect air cooling top of tower windbreak, 29 be indirect dry cooling tower at the bottom ofPortion's windbreak.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
As shown in Figure 1, the present invention includes steam turbine 1, indirect cooling condenser 13 and condensate fine processing unit 18, steam turbine1 is connected with generator 2, and Direct Air-Cooled unit is radiator of direct air-cooling, and radiator of direct air-cooling below is provided with Air-Cooling Island blower fanGroup 24.
Radiator of direct air-cooling entrance is connected with steam turbine 1, and outlet is connected with condensate fine processing unit 18, wherein, described straightConnect air cooling heat radiator porch and be provided with the first motor-driven valve 3, the second motor-driven valve 4, exit is provided with the 3rd motor-driven valve 5, the 4thMotor-driven valve 6, the 5th motor-driven valve 7, the 6th motor-driven valve 8, the three motor-driven valves 5, the 4th motor-driven valve 6, the 5th motor-driven valve 7, the 6thMotor-driven valve 8 is all connected with indirect air cooling condensate pump 16, and indirect air cooling condensate pump 16 is connected with condensate fine processing unit 18.Condensate fine processing unit 18 is connected with Multi-stage heating device; Indirect cooling condenser 13 entrances are connected with steam turbine 1, outlet withMulti-stage heating device is connected, and described Multi-stage heating device comprises connected primary heater 19, secondary heater 20 and the 3rd heater21, primary heater 19 is connected with condensate fine processing unit 18, and the 3rd heater 21 is also connected with boiler economizer. IndirectlyCooling condenser 13 is also connected with indirect air cooling unit 14. Described indirect air cooling unit 14 is indirect dry cooling tower 27.
Described radiator of direct air-cooling comprises some air cooled fin tubes 11.
As shown in Figure 2, the N that Air-Cooling Island blower fan group 24 is combined by some the first air cooling blower fans 9, the second air cooling blower fan 10The emptying air-cooler of row N, Air-Cooling Island blower fan group 24 is affected by ambient wind, can make air cooling blower fan inlet velocity and air quantity change,Thereby radiator of direct air-cooling entrance wind direction and wind speed etc. are all changed, in serious situation, can greatly weaken air cooled fin tube 11Heat transfer efficiency, for this problem, can install the first anti-wind net 25 additional in Air-Cooling Island bottom, further, and for preventing that ambient wind is to directlyConnect the impact of air cooling heat radiator exit flow field, can install at Air-Cooling Island top the second anti-wind net 26 additional, like this, just can ensure directlyAir cooling heat-sink unit moves under design conditions, effectively solves the high and antifreeze problem of Air-Cooling Island in winter of Air-Cooling Island back pressure in summer.
As shown in Figure 3, indirect air cooling unit 14 is indirect dry cooling tower 27, has installed additional first windproof in indirect dry cooling tower 27 bottomsWall 29, top installs the second windbreak 28 additional, installs windbreak additional and can ensure aerodynamic field in hyperbola air cooling tower, reduces environmentThe impact of wind on indirect dry cooling tower ventilation and wind speed and direction, ensures Air Flow and heat transfer property in indirect dry cooling tower.
Add and fill nitrogen interface in Direct Air-Cooled unit and 14 porch, indirect air cooling unit, when zone isolation valve is by part heat exchange listAfter unit's isolation, nitrogen filled protection device fills nitrogen to the heat exchange unit of having isolated automatically, fills nitrogen pressure controlled, thereby ensures emptyCold heat-sink unit is stopping for subsequent use, maintenance, is isolating the security reliability under operating mode temporarily.
Combine the control method of air cooling system: a steam turbine 1 steam discharge part enters a Direct Air-Cooled unit, at Direct Air-Cooled listImport department of unit arranges the first motor-driven valve 3, the second motor-driven valve 4, and exit, Direct Air-Cooled unit also arranges the 3rd motor-driven valve 5, the 4thMotor-driven valve 6, the 5th motor-driven valve 7, the 6th motor-driven valve 8, steam discharge forms condensate water after Direct Air-Cooled unit condenses, and condensate water is logicalCross after Direct Air-Cooled condensate pump 17 is transported to condensate fine processing unit 18 and enter heaters at different levels; Another part steam turbine rowVapour enters indirect air cooling condenser 13 through non-return valve 12, and recirculated water is transported to indirect air cooling by indirect air cooling water circulating pump 15Tower 14 carries out secondary heat exchange, after turbine discharge condenses, by indirect air cooling condensate pump 16, condensate water is delivered to precision processingUnit, then enters heaters at different levels and finally enters boiler economizer.
For preventing that Direct Air-Cooled heat-sink unit 11 and indirect air cooling heat-sink unit 14 from freeze thawing occurring in the time that environment temperature is lower or freezeHarm, is provided with zone isolation valve, concrete, installs the first motor-driven valve 3 in radiator of direct air-cooling steam inlet additional, in heat radiationThe 3rd motor-driven valve 5, the 4th motor-driven valve 6 are installed in device condensate water outlet additional, when environment temperature, unit load rate lower, or Direct Air-CooledWhen radiator easily freezes, can close import the first motor-driven valve 3, time-delay closing outlet the 3rd motor-driven valve 5, the 4th motor-driven valve6, carry out zone isolation protection to freezing dangerous heat-sink unit, under solution extreme environment situation, an Air-Cooling Island group of planes is antifreezeProblem.
Direct Air-Cooled heat-sink unit is carried out in zone isolation process, except arranging some motor-driven valves, also at each motor-driven valveNear setting filled nitrogen interface, carries out in time nitrogen filled protection after the Direct Air-Cooled unit to freezing carries out zone isolation,Prevent the generation of the harm such as air cooled fin tube burn into distortion. Meanwhile, be provided with air cooling unit group in air cooling heat-sink unit porchEntrance expansion joint 22, air cooling heat-sink unit condensate water exit is provided with air cooling unit group outlet expansion joint 23, to prevent the utmost point in winterCondenser pipe drawing crack problem under cold weather conditions.
For preventing that Direct Air-Cooled unit and indirect air cooling unit 14 are subject to the impact of environment crosswind, windbreak and anti-has also been installed in the present invention additionalWind net, bottom, Direct Air-Cooled island and top all install anti-wind net additional, and indirect air cooling tower bottom and top install windbreak additional, in conjunction with air intakeThe adjustable louver structure air door that mouth arranges, carries out as required switch air door and regulates intake, thereby ensures Air-Cooling Island and skyCold flow field in tower stability, improves air cooling heat-sink unit heat transfer efficiency.
The present invention shunts turbine discharge, and a part of turbine discharge enters direct air cooled condenser and carries out heat exchange, anotherPart steam discharge enters indirect air cooling condenser and carries out heat exchange, and combined-circulation cooling system can further reduce turbine discharge back pressure,Improve unit vacuum, and then improve unit economy. For solving Direct Air-Cooled and indirect air cooling heat radiator anti-freezing problem, the present inventionBe provided with zone isolation valve and nitrogen filled protection interface, solve better a preventing freeze in winter difficult problem for current Air-cooled Unit emerged in operation.In addition, the present invention is also installed anti-wind net additional to Direct Air-Cooled island, and indirect dry cooling tower installs windbreak additional, avoids environment crosswind to Air-Cooling IslandWith the interference of air cooling tower flow field, ensure air cooling unit heat exchange efficiency, in China three northern areas of China and corresponding Construction of Unit and transformationIn process, bring into play the due advantage of Air-cooled Unit.
Claims (10)
1. an associating air cooling system, is characterized in that, comprises steam turbine (1), indirect cooling condenser (13) and condensate waterPrecision processing unit (18), steam turbine (1) is connected with generator (2), and Direct Air-Cooled unit is radiator of direct air-cooling, directlyAir cooling heat radiator entrance is connected with steam turbine (1), and outlet is connected with condensate fine processing unit (18), and condensate fine is processed singleUnit (18) is connected with Multi-stage heating device; Indirect cooling condenser (13) entrance is connected with steam turbine (1), outlet and multistage addingHot device is connected; Indirect cooling condenser (13) is also connected with indirect air cooling unit (14).
2. a kind of associating air cooling system according to claim 1, is characterized in that described radiator of direct air-cooling porchBe provided with the first motor-driven valve (3), the second motor-driven valve (4), exit be provided with the 3rd motor-driven valve (5), the 4th motor-driven valve (6),The 5th motor-driven valve (7), the 6th motor-driven valve (8).
3. a kind of associating air cooling system according to claim 2, is characterized in that described the 3rd motor-driven valve (5), the 4thMotor-driven valve (6), the 5th motor-driven valve (7), the 6th motor-driven valve (8) are all connected with indirect air cooling condensate pump (16), indirectly emptyCold condensate pump (16) is connected with condensate fine processing unit (18).
4. a kind of associating air cooling system according to claim 1, is characterized in that, if described radiator of direct air-cooling comprisesDry air cooled fin tube (11); Add and fill nitrogen interface in Direct Air-Cooled unit and porch, indirect air cooling unit (14).
5. a kind of associating air cooling system according to claim 1, is characterized in that, described Multi-stage heating device comprises connectedPrimary heater (19), secondary heater (20) and the 3rd heater (21), primary heater (19) and condensate fine placeReason unit (18) is connected, and the 3rd heater (21) is also connected with boiler economizer.
6. a kind of associating air cooling system according to claim 1, is characterized in that, described radiator of direct air-cooling below arrangesThere is Air-Cooling Island blower fan group (24); Described Air-Cooling Island blower fan group (24) comprises by some the first air cooling blower fans (9) and the second air coolingThe emptying air-cooler of N row N that blower fan (10) combines.
7. a kind of associating air cooling system according to claim 1, is characterized in that described Air-Cooling Island blower fan group (24) bottomInstall the first anti-wind net (25) additional, Air-Cooling Island blower fan group (24) top installs the second anti-wind net (26) additional.
8. a kind of associating air cooling system according to claim 1, is characterized in that, establish porch, described Direct Air-Cooled unitBe equipped with air cooling unit group entrance expansion joint (22), air cooling heat-sink unit condensate water exit is provided with air cooling unit group outlet expansion joint(23)。
9. a kind of associating air cooling system according to claim 1, is characterized in that, between described indirect air cooling unit (14) isConnect air cooling tower (27), installed the first windbreak (29) additional in indirect dry cooling tower (27) bottom, top installs the second windbreak (28) additional.
10. a control method of combining air cooling system, is characterized in that, steam turbine (1) steam discharge part enters Direct Air-Cooled listUnit, arranges the first motor-driven valve (3), the second motor-driven valve (4) at Direct Air-Cooled unit inlet place, exit, Direct Air-Cooled unit alsoThe 3rd motor-driven valve (5), the 4th motor-driven valve (6), the 5th motor-driven valve (7), the 6th motor-driven valve (8) are set, and steam discharge is through directly emptyAfter cold unit condenses, form condensate water, condensate water is transported to condensate fine processing unit (18) by Direct Air-Cooled condensate pump (17)After enter heaters at different levels; Another part turbine discharge enters indirect air cooling condenser (13) through non-return valve (12), circulationWater is transported to indirect dry cooling tower (14) by indirect air cooling water circulating pump (15) and carries out secondary heat exchange, after turbine discharge condenses,By indirect air cooling condensate pump (16), condensate water is delivered to precision processing unit, then enters heaters at different levels and finally enter potStove economizer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610165599.3A CN105674760A (en) | 2016-03-22 | 2016-03-22 | Joint air-cooling system and control method |
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| CN201610165599.3A CN105674760A (en) | 2016-03-22 | 2016-03-22 | Joint air-cooling system and control method |
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| CN106247815A (en) * | 2016-07-19 | 2016-12-21 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of control method of the in line big machine air cooling system of the little machine of supercritical thermal power unit |
| CN106761970A (en) * | 2016-12-13 | 2017-05-31 | 华北电力大学 | A kind of many joint construction unit exhaust steam cooling systems and many joint construction air cooling turbo-generators |
| CN111306954A (en) * | 2020-03-30 | 2020-06-19 | 上海宁硕节能科技有限公司 | Air-wet series cooling system suitable for air cooling unit |
| CN112833567A (en) * | 2021-01-23 | 2021-05-25 | 西安热工研究院有限公司 | Intelligent adjustable mirror surface system suitable for air cooling island all-condition cooling and freezing prevention |
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| CN106761970A (en) * | 2016-12-13 | 2017-05-31 | 华北电力大学 | A kind of many joint construction unit exhaust steam cooling systems and many joint construction air cooling turbo-generators |
| CN106761970B (en) * | 2016-12-13 | 2018-02-16 | 华北电力大学 | A kind of more joint construction unit exhaust steam cooling systems and more joint construction air cooling turbo-generators |
| CN111306954A (en) * | 2020-03-30 | 2020-06-19 | 上海宁硕节能科技有限公司 | Air-wet series cooling system suitable for air cooling unit |
| CN112833567A (en) * | 2021-01-23 | 2021-05-25 | 西安热工研究院有限公司 | Intelligent adjustable mirror surface system suitable for air cooling island all-condition cooling and freezing prevention |
| CN114754599A (en) * | 2022-04-24 | 2022-07-15 | 华北电力科学研究院有限责任公司 | Heat exchange system and method of surface type indirect air cooling system |
| CN114812214A (en) * | 2022-06-24 | 2022-07-29 | 中国能源建设集团山西省电力勘测设计院有限公司 | Direct air cooling system transformation method for enabling air cooling condenser to have energy-saving and life-prolonging effects |
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