CN112524718A - Automatic cooling system for thermal power plant and cooling method thereof - Google Patents
Automatic cooling system for thermal power plant and cooling method thereof Download PDFInfo
- Publication number
- CN112524718A CN112524718A CN202011374362.9A CN202011374362A CN112524718A CN 112524718 A CN112524718 A CN 112524718A CN 202011374362 A CN202011374362 A CN 202011374362A CN 112524718 A CN112524718 A CN 112524718A
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- power plant
- thermal power
- temperature
- spraying
- cooling
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0035—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using evaporation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
Abstract
The invention discloses an automatic cooling system for a thermal power plant and a cooling method thereof, belonging to the technical field of the thermal power plant, the automatic cooling system for the thermal power plant comprises a temperature statistical system, a spraying cooling system, a spraying control system, a water vapor collecting system, a water circulating system and a central control system, wherein the temperature statistical system is used for counting the internal temperature distribution interval of the thermal power plant, the spraying cooling system is used for spraying and cooling each temperature zone in the thermal power plant, the spraying control system is used for controlling the spraying speed and the spraying size of the spraying position in each temperature zone, the water vapor collecting system is used for collecting water vapor generated in the spraying process, the water circulating system is used for collecting excessive water vapor, the water vapor is cooled and settled for water reuse, and the central control system is used for controlling the spraying cooling system to work; the system adopts water spraying for cooling, the cooling effect is good, the safety is high, meanwhile, water vapor can be recycled, and the water resource is reasonably utilized.
Description
Technical Field
The invention belongs to the technical field of thermal power plants, and particularly relates to an automatic cooling system for a thermal power plant and a cooling method thereof.
Background
The thermal power plant is called thermal power plant, and is a plant for producing electric energy by using combustible (such as coal) as fuel, and its basic production process is: when the fuel is burnt, water is heated to generate steam, chemical energy of the fuel is converted into heat energy, the steam pressure pushes a steam turbine to rotate, the heat energy is converted into mechanical energy, and then the steam turbine drives a generator to rotate, so that the mechanical energy is converted into electric energy. Although our country is increasing the supporting force for propelling clean energy continuously at present, it is undeniable that a part of our country's power supply comes from thermal power generation, and this situation lasts for a long time, because the power generation of thermal power plant depends on the combustion of combustible materials to realize power generation, the requirements of relevant devices on the detection and control of their own temperature are also higher than other energy sources, and how to make the problem of cooling relevant devices in the thermal power plant also becomes an important safety problem,
the cooling measures of the existing thermal power plant are mostly manual operations, and the defects of large manpower consumption, large time consumption and the like exist.
In order to solve the problems of the prior art, people have long searched for and put forward various solutions. For example, chinese patent document discloses a cooling and noise reducing device for a main building of a gas power plant [ application No.: 201220248282.3 ], including generating set, air inlet axial fan, silencer, air outlet axial fan and double-layer sound-proof window, its characteristic is, there are air inlet axial fans on the wall under the generating set opposite, there are air outlet axial fans above its diagonal angle, the air inlet, air outlet axial fans are furnished with the silencer separately; the air inlet axial flow fan and the air outlet axial flow fan are paired and correspond to the generator set.
The solution described above improves to some extent some of the problems of the prior art, but it also has at least the following drawbacks: only the fan is adopted to reduce the temperature, the cooling effect is poor, and the safety of each device in the thermal power plant cannot be guaranteed.
Disclosure of Invention
The invention aims to provide an automatic cooling system for a thermal power plant and a cooling method thereof.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automatic cooling system for thermal power plant and cooling method thereof, this automatic cooling system for thermal power plant includes temperature statistics system, sprays cooling system, spray control system, steam collecting system, water circulating system, central control system, temperature statistics system is used for making statistics of the inside temperature distribution interval of thermal power plant, and the cooling system that sprays is used for the cooling of spraying of each inside temperature subregion of thermal power plant, and spray control system is used for controlling the control of the spray velocity and the size of the inside spray position of each temperature subregion, and steam collecting system is used for collecting the steam that sprays the in-process and produces and collects, and water circulating system is used for collecting surplus steam, and the cooling subsides and carries out water reuse, and central control system is used for controlling the work of cooling system that sprays.
Preferably, the temperature statistical system comprises a plurality of temperature division areas arranged inside the thermal power plant, a temperature detection probe is arranged inside each temperature division area, and a temperature display at each temperature detection probe is connected to the central control system.
Preferably, the spraying and cooling system comprises a spraying pipeline arranged at each temperature detection probe, the upper end of the spraying pipeline is provided with a control valve, and the control valve is electrically connected to the central control system.
Preferably, the steam collecting system comprises a steam collecting box above the spraying pipeline, a fan is arranged in the steam collecting box, one end of the steam collecting box is fixedly connected with a steam conveying pipeline, and the steam conveying pipeline is connected to the steam turbine.
Preferably, the water circulation system comprises a guide groove fixed at the bottom of the water vapor conveying pipeline, and the guide groove is connected to the water collecting tank at the position of the water vapor conveying pipeline.
Preferably, the central control system comprises a control host, the control host is connected with a display screen, the internal information of the control host is connected to the temperature statistical system, and the control component is electrically connected to the control valve.
The automatic cooling method for the thermal power plant comprises the following steps:
s1, dividing the interior of the thermal power plant into a plurality of areas, and installing a temperature detection probe in each area;
s2, arranging a spray pipeline at each region temperature detection probe;
s3, arranging a vapor collection box above each area;
s4, controlling the flow rate of the control valve on the spray pipeline through the control host according to the temperature value in each area;
and S5, allowing the water vapor generated after spraying to enter a steam turbine through a water vapor collecting pipeline to drive the steam turbine to rotate, and allowing the water vapor to flow into a water collecting tank for water circulation after remaining in a diversion trench at the bottom of the water vapor collecting pipeline in the conveying process.
Preferably, the temperature detection probes are arranged in two or more areas, each temperature detection probe is connected with a temperature display, and when the numerical difference displayed by all the temperature displays is not more than 10 ℃, the control host is used for controlling spraying.
The invention has the beneficial effects that:
1. this automatic cooling system is used in thermal power plant is a plurality of temperature partition regions of the inside setting of thermal power plant, and every temperature partition region is inside to set up temperature detect probe, can effectively monitor the inside concrete temperature range of whole thermal power plant, according to the real-time volume that sprays of temperature range, water economy resource.
2. This automatic cooling system spray piping upper end sets up control flap for thermal power plant, and control flap electricity is connected to central control system, and according to temperature detect probe's detection data, in data transmission to central control system, central control system controls the quantity of opening of the spray piping of every temperature detect probe department, and control flap opens, is controlled by central control system is unified, improves the accuracy nature and the validity that spray.
3. This automatic cooling system's for thermal power plant temperature-detecting probe sets up two and more at every regional inside, and every temperature-detecting probe all has connection temperature display, when all temperature display show that the numerical difference is no longer than 10 ℃, controls through the main control system and sprays, sets up a plurality of temperature display, increases the accuracy that the temperature detected, increases the accuracy that sprays, the reduction water waste of minimizing.
4. This automatic cooling system is used in thermal power plant sets up the steam collecting box that steam collecting system includes the spray piping top, and the inside fan that sets up of steam collecting box, steam collecting box one end fixed connection steam pipeline, steam pipeline are connected to the steam turbine, collect surplus steam, reduce the waste of steam, the rational utilization resource.
Drawings
FIG. 1 is a schematic structural diagram of an automatic cooling system for a thermal power plant according to the present invention;
fig. 2 is a schematic structural diagram of a water vapor collection system of an automatic cooling system for a thermal power plant provided by the invention.
In the figure: 1. a spray pipe; 2. a water vapor collecting box; 3. a water vapor delivery conduit; 4. a diversion trench; 5. a water collection tank; 6. a steam turbine.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.
Referring to fig. 1 to fig. 2, an automatic cooling system for a thermal power plant and a cooling method thereof according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the automatic cooling system for the thermal power plant and the cooling method thereof comprise a temperature statistical system, a spraying cooling system, a spraying control system, a water vapor collecting system, a water circulation system and a central control system, wherein the temperature statistical system is used for counting the temperature distribution intervals inside the thermal power plant, the spraying cooling system is used for spraying and cooling each temperature zone inside the thermal power plant, the spraying control system is used for controlling the spraying speed and size of the spraying position inside each temperature zone, the water vapor collecting system is used for collecting the water vapor generated in the spraying process, the water circulation system is used for collecting the excess water vapor, cooling and settling are used for recycling water, and the central control system is used for controlling the spraying cooling system to work.
Specifically, the temperature statistical system includes a plurality of temperature segmentation regions that thermal power plant is inside to be set up, and the inside temperature detect probe that sets up of every temperature segmentation region, the temperature display of every temperature detect probe department, temperature display are connected to central control system.
Specifically, the spraying and cooling system comprises a spraying pipeline arranged at each temperature detection probe, a control valve is arranged at the upper end of the spraying pipeline and electrically connected to a central control system, and the central control system controls the opening number of the spraying pipelines at each temperature detection probe and opens the control valves according to detection data of the temperature detection probes in the process of transmitting the data to the central control system.
Specifically, steam collecting system includes the steam collecting box of shower top, and steam collecting box is inside to set up the fan, and steam collecting box one end fixed connection steam conveying pipe, steam conveying pipe are connected to the steam turbine, inhales steam through the fan and collects, and after steam got into steam collecting box, the inside steam of steam collecting box passed through steam conveying pipe, transmitted steam to the steam turbine inside, and the drive steam turbine rotates, and then drive mechanical structure rotates, the conversion electric energy.
Specifically, water circulating system is including fixing at steam pipeline bottom guiding gutter, and guiding gutter is connected to the header tank in the living and sparse steam pipeline department of guiding gutter, and inside unnecessary steam flowed into to the header tank along the guiding gutter of bottom, the inside water of header tank can be connected to spray piping again, when carrying out the inside cooling of thermal power plant, can spray.
Specifically, the central control system comprises a control host, the control host is connected with a display screen, the internal information of the control host is connected to the temperature statistical system, and the control assembly is electrically connected to the control valve.
In this embodiment, the automatic cooling method for a thermal power plant includes the following steps:
s1, dividing the interior of the thermal power plant into a plurality of areas, and installing a temperature detection probe in each area;
s2, arranging a spray pipeline at each region temperature detection probe;
s3, arranging a vapor collection box above each area;
s4, controlling flow control through a control valve on a control host machine control spray pipeline according to the temperature value in each area, arranging two or more temperature detection probes in each area, connecting each temperature detection probe with a temperature display, and controlling spray through the control host machine when the difference of the display values of all the temperature displays is not more than 10 ℃;
and S5, allowing the water vapor generated after spraying to enter a steam turbine through a water vapor collecting pipeline to drive the steam turbine to rotate, and allowing the water vapor to flow into a water collecting tank for water circulation after remaining in a diversion trench at the bottom of the water vapor collecting pipeline in the conveying process.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an automatic cooling system for thermal power plant and cooling method thereof, its characterized in that, this automatic cooling system for thermal power plant and cooling method thereof includes temperature statistics system, sprays cooling system, spray control system, steam collecting system, water circulating system, central control system, temperature statistics system is used for making statistics of the inside temperature distribution interval of thermal power plant, sprays cooling system and is used for the spraying cooling of each inside temperature zone of thermal power plant, spray control system is used for controlling the control of the spraying speed and the size of the inside spray position of each temperature zone, steam collecting system is used for collecting the steam collection that sprays the in-process and produce, water circulating system is used for collecting surplus steam, the cooling subsides and carries out water reuse, central control system is used for controlling the work of spraying cooling system.
2. The automatic cooling system for the thermal power plant and the cooling method thereof according to claim 1, wherein the temperature statistical system comprises a plurality of temperature division areas arranged inside the thermal power plant, a temperature detection probe is arranged inside each temperature division area, and a temperature display is arranged at each temperature detection probe and connected to the central control system.
3. The automatic cooling system for the thermal power plant and the cooling method thereof according to claim 1, wherein the spraying cooling system comprises a spraying pipeline arranged at each temperature detection probe, and a control valve is arranged at the upper end of the spraying pipeline and electrically connected to the central control system.
4. The automatic cooling system for the thermal power plant and the cooling method thereof as claimed in claim 1, wherein the steam collecting system comprises a steam collecting box above the spraying pipeline, the inside of the steam collecting box is provided with a fan, one end of the steam collecting box is fixedly connected with a steam conveying pipeline, and the steam conveying pipeline is connected to the steam turbine.
5. The automatic cooling system and the cooling method thereof for the thermal power plant according to claim 4, wherein the water circulation system comprises a diversion trench fixed at the bottom of the water vapor conveying pipeline, and the diversion trench is connected to a water collecting tank at the position of the hydrophobic water vapor conveying pipeline.
6. The automatic cooling system and the cooling method thereof for the thermal power plant according to claim 1, wherein the central control system comprises a control host, the control host is connected with a display screen, the internal information of the control host is connected to the temperature statistical system, and the control component is electrically connected to a control valve.
7. An automatic cooling method for a thermal power plant is characterized by comprising the following steps:
s1, dividing the interior of the thermal power plant into a plurality of areas, and installing a temperature detection probe in each area;
s2, arranging a spray pipeline at each region temperature detection probe;
s3, arranging a vapor collection box above each area;
s4, controlling the flow rate of the control valve on the spray pipeline through the control host according to the temperature value in each area;
and S5, allowing the water vapor generated after spraying to enter a steam turbine through a water vapor collecting pipeline to drive the steam turbine to rotate, and allowing the water vapor to flow into a water collecting tank for water circulation after remaining in a diversion trench at the bottom of the water vapor collecting pipeline in the conveying process.
8. The automatic cooling method for the thermal power plant according to claim 7, wherein two or more temperature detection probes are arranged in each area, each temperature detection probe is connected with a temperature display, and when the numerical difference displayed by all the temperature displays is not more than 10 ℃, the spraying is controlled through the control host.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011374362.9A CN112524718A (en) | 2020-12-01 | 2020-12-01 | Automatic cooling system for thermal power plant and cooling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011374362.9A CN112524718A (en) | 2020-12-01 | 2020-12-01 | Automatic cooling system for thermal power plant and cooling method thereof |
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| CN112524718A true CN112524718A (en) | 2021-03-19 |
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| CN202011374362.9A Pending CN112524718A (en) | 2020-12-01 | 2020-12-01 | Automatic cooling system for thermal power plant and cooling method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012127640A (en) * | 2010-11-25 | 2012-07-05 | Hideaki Sodeyama | Dehumidified cold generating method, and air cooler |
| CN102557176A (en) * | 2012-02-07 | 2012-07-11 | 绍兴文理学院 | Sea water desalinating device of cooling tower of coastal and island thermal power plants |
| CN103147807A (en) * | 2013-02-27 | 2013-06-12 | 青岛中拓科技有限公司 | Power generation system using waste heat of coke oven crude gas |
| CN104566690A (en) * | 2013-10-14 | 2015-04-29 | 南京五洲制冷集团有限公司 | Split-range type condensation indirect reheating type double-cold-source fresh air unit |
| CN107120886A (en) * | 2017-05-18 | 2017-09-01 | 华电电力科学研究院 | Thermal power plant's automatic cooling system and its application method |
| CN207277494U (en) * | 2017-07-21 | 2018-04-27 | 中建八局第一建设有限公司 | A kind of automatic spray depositing dust cooling system of water circulation use |
| CN110282682A (en) * | 2019-06-28 | 2019-09-27 | 陈焱 | A method of wastewater treatment is carried out as heat source using the steam exhaust of air-cooled power plant |
-
2020
- 2020-12-01 CN CN202011374362.9A patent/CN112524718A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012127640A (en) * | 2010-11-25 | 2012-07-05 | Hideaki Sodeyama | Dehumidified cold generating method, and air cooler |
| CN102557176A (en) * | 2012-02-07 | 2012-07-11 | 绍兴文理学院 | Sea water desalinating device of cooling tower of coastal and island thermal power plants |
| CN103147807A (en) * | 2013-02-27 | 2013-06-12 | 青岛中拓科技有限公司 | Power generation system using waste heat of coke oven crude gas |
| CN104566690A (en) * | 2013-10-14 | 2015-04-29 | 南京五洲制冷集团有限公司 | Split-range type condensation indirect reheating type double-cold-source fresh air unit |
| CN107120886A (en) * | 2017-05-18 | 2017-09-01 | 华电电力科学研究院 | Thermal power plant's automatic cooling system and its application method |
| CN207277494U (en) * | 2017-07-21 | 2018-04-27 | 中建八局第一建设有限公司 | A kind of automatic spray depositing dust cooling system of water circulation use |
| CN110282682A (en) * | 2019-06-28 | 2019-09-27 | 陈焱 | A method of wastewater treatment is carried out as heat source using the steam exhaust of air-cooled power plant |
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Application publication date: 20210319 |
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