CN112783231B - Advanced control system for circulating water temperature of thermal power plant - Google Patents
Advanced control system for circulating water temperature of thermal power plant Download PDFInfo
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- CN112783231B CN112783231B CN202110009811.8A CN202110009811A CN112783231B CN 112783231 B CN112783231 B CN 112783231B CN 202110009811 A CN202110009811 A CN 202110009811A CN 112783231 B CN112783231 B CN 112783231B
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- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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Abstract
The invention provides an advanced control system for the temperature of circulating water in a thermal power plant, which comprises a water replenishing tank, wherein one side of the water replenishing tank is provided with a water inlet, the water inlet is connected with tap water, the top of the water replenishing tank is provided with a salinity sensor, one end of the salinity sensor is immersed in treated water, the top of the water replenishing tank is connected with a liquid medicine valve through a pipeline, one end of the liquid medicine valve is connected with a medicine feeding funnel through a pipeline, one side of the water replenishing tank is connected with a water replenishing pump through a pipeline, the water replenishing pump is connected with a condensate tank through a pipeline, the top of the condensate tank is provided with a temperature sensor, one end of the temperature sensor is immersed in the condensate water, the condensate tank is connected to a boiler through a pipeline, the boiler is connected to a generator set through a pipeline, the generator set is connected to a steam pump through a pipeline, the steam pump is connected to a cooling device through a pipeline, the cooling device is connected to a booster pump through a pipeline, the booster pump is connected to the condensate tank through a pipeline, the advanced control system for the circulating water temperature of the thermal power plant has the advantages of simple and reasonable structure, reduction of labor cost and convenience in popularization.
Description
Technical Field
The invention relates to the field of temperature control, in particular to an advanced control system for the temperature of circulating water of a thermal power plant.
Background
In the primary energy structure of China, the proportion of fossil fuels such as coal is more than 70%. Therefore, the proportion of the installed electric power capacity of the thermal power plant in China also exceeds 60%, and statistically, more than 40% of the electric power in the world comes from fossil fuels such as coal. Although the proportion of various renewable energy sources such as wind energy, solar energy and the like is gradually increased at present, a thermal power plant is still an important component of the global power industry for a quite long time in the future.
A thermal generator set is a complex set of process for converting chemical energy of coal and the like into electric energy through heat energy and mechanical energy. The salt content in the water affects the power generation work, the regular cleaning is needed, the workload is increased, and when the temperature of the condensed water reaches the requirement, the salt content in the water can be more effectively removed, so that the water temperature is controlled to be very important, special personnel are needed to check on time in reality, and the labor cost is increased.
Therefore, the improvement is made, and an advanced control system for the circulating water temperature of the thermal power plant is provided.
Disclosure of Invention
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to an advanced control system for the temperature of circulating water in a thermal power plant, which comprises a water replenishing tank, wherein a water inlet is arranged on one side of the water replenishing tank, a salinity sensor is arranged on the top of the water replenishing tank, one end of a salinity sensor detecting head extends into the bottom of the water replenishing tank, a dosing funnel is connected to the top of the water replenishing tank, treated water is arranged in the water replenishing tank, one side of the water replenishing tank is connected with a water replenishing pump through a pipeline, the water replenishing pump is connected with a condensate tank through a pipeline, condensate water is arranged in the condensate tank, a temperature sensor is arranged on the top of the condensate tank, one end of the temperature sensor detecting head extends into the bottom of the condensate tank, the condensate tank is connected to a boiler through a pipeline, the boiler is connected to a generator set through a pipeline, the generator set is connected to a steam pump through a pipeline, the steam pump is connected to a cooling device through a pipeline, the cooling device is connected to a booster pump through a pipeline, the booster pump is connected to the condensate tank through a pipeline, one side of the condensate tank is connected with a circulating pump through a pipeline, the circulating pump is connected to the water replenishing tank through a pipeline, and a control panel is installed on one side of the water replenishing tank.
As a preferred technical solution of the present invention, the temperature sensor is an insertion temperature sensor, and the temperature sensor is electrically connected to the control panel.
As a preferred technical scheme of the invention, the salinity sensor is of a sinking type and is electrically connected with the control panel.
As a preferred technical scheme of the invention, the water replenishing tank is connected with the dosing funnel through a pipeline, a liquid medicine valve is connected in the pipeline, and the liquid medicine valve is electrically connected with the control panel.
As a preferred technical scheme of the invention, the circulating pump is respectively connected with the water replenishing tank and the condensed water tank through pipelines, and the circulating pump is electrically connected with the control panel.
As a preferable technical scheme of the invention, a filter is arranged on one side inside the water replenishing tank and is connected with the water inlet through a pipeline.
As a preferable technical solution of the present invention, the cooling device is provided with a cooling pump, and the cooling pump is electrically connected to the control panel.
The invention has the beneficial effects that:
1. the advanced control system for the circulating water temperature of the thermal power plant is characterized in that a water inlet is formed in one side of a water replenishing tank, a salinity sensor is installed at the top of the water replenishing tank, one end of a salinity sensor detecting head extends into the bottom of the water replenishing tank, the top of the water replenishing tank is connected with a dosing funnel, one side of the water replenishing tank is connected with a water replenishing pump through a pipeline, the water replenishing pump is connected with a condensate tank through a pipeline, a temperature sensor is installed at the top of the condensate tank, one end of a temperature sensor detecting head extends into the bottom of the condensate tank, the condensate tank is connected to a boiler through a pipeline, the boiler is connected to a generator set through a pipeline, the generator set is connected to a steam pump through a pipeline, the steam pump is connected to a cooling device through a pipeline, the cooling device is connected to a booster pump through a pipeline, the booster pump is connected to the condensate tank through a pipeline, one side of the condensate tank is connected with a circulating pump through a pipeline, and the circulating pump is connected to the water replenishing tank through a pipeline, the temperature sensor is arranged at the upper end of the condensed water tank, one end of the temperature sensor is immersed in the condensed water, the temperature sensor is electrically connected with the control panel, the temperature sensor monitors the temperature of the condensed water in real time, when the temperature of the condensed water meets the requirement, the circulating pump is started again, the condensed water is pumped into the water replenishing tank, and the temperature sensor is electrically connected with the control panel, so that the automation of the operation is realized, and the manpower is saved;
2. the advanced control system for the circulating water temperature of the thermal power plant is characterized in that a water replenishing tank is connected with a dosing hopper through a pipeline, a liquid medicine valve is connected in the pipeline and electrically connected with a control panel, the automatic adjustment of the liquid medicine flow is realized, the deposition of salt is avoided, the labor cost for cleaning the deposited salt is saved, a circulating pump is respectively connected with the water replenishing tank and a condensate tank through pipelines and is electrically connected with the control panel, the circulating pump is respectively connected with the water replenishing tank and the condensate tank through pipelines and is electrically connected with the control panel, a water temperature sensor transmits a temperature signal to the control panel, the control panel well controls the circulating pump to operate or close according to the temperature signal, a filter is arranged on one side inside the water replenishing tank and is connected with a water inlet through a pipeline, and the circulating reuse of condensate water can be realized, water sources are saved, and meanwhile, the water entering the water replenishing tank is filtered to ensure the purity of the water;
3. this kind of advanced control system of thermal power plant's circulating water temperature is equipped with the cooling pump through cooling device, and cooling pump and control panel electric connection, and temperature sensor gives control panel with temperature signal transmission, and control panel has realized the automatic control purpose according to the discharge of temperature automatically regulated cooling pump.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent by describing in greater detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 is a schematic structural diagram of an advanced control system for the temperature of circulating water of a thermal power plant according to the present invention.
FIG. 2 is a system control diagram of an advanced control system for circulating water temperature of a thermal power plant according to the present invention.
FIG. 3 is a temperature control system diagram of an advanced control system for the temperature of circulating water in a thermal power plant according to the present invention.
In the figure: 1. a water replenishing tank; 2. a boiler; 3. a circulation pump; 4. a generator set; 5. a booster pump; 6. condensing water; 7. a water replenishing pump; 8. a salinity sensor; 9. a dosing funnel; 10. a liquid medicine valve; 11. treating water; 12. a filter; 13. a water inlet; 14. a temperature sensor; 15. a condensed water tank; 16. a steam pump; 17. and a cooling device.
Detailed Description
Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Example (b): as shown in fig. 1-3, the advanced control system for the temperature of circulating water in a thermal power plant comprises a water supply tank 1, a water inlet 13 is arranged on one side of the water supply tank 1, a salinity sensor 8 is arranged on the top of the water supply tank 1, one end of a detection head of the salinity sensor 8 extends into the bottom of the water supply tank 1, a chemical adding funnel 9 is connected on the top of the water supply tank 1, treated water 11 is arranged in the water supply tank 1, a water supply pump 7 is connected on one side of the water supply tank 1 through a pipeline, the water supply pump 7 is connected with a condensate tank 15 through a pipeline, condensate water 6 is arranged in the condensate tank, a temperature sensor 14 is arranged on the top of the condensate tank 15, one end of a detection head of the temperature sensor 14 extends into the bottom of the condensate tank 15, the condensate tank 15 is connected to a boiler 2 through a pipeline, the boiler 2 is connected to a generator set 4 through a pipeline, the generator set 4 is connected to a steam pump 16 through a pipeline, steam pump 16 is through pipeline cooling device 17 even, booster pump 5 is received through the pipeline to cooling device 17, booster pump 5 is through pipe connection to condensate tank 15, there is circulating pump 3 condensate tank 15 one side through pipe connection, circulating pump 3 is through pipe connection to make-up water tank 1, control panel is installed to make-up water tank one side.
Wherein, temperature sensor 14 is insertional temperature sensor, and temperature sensor 14 and control panel electric connection, through 14 real-time supervision condensate water temperature of temperature sensor, when the condensate water temperature reaches the requirement, restart circulating pump 3, with condensate water pump income moisturizing case 1, through 14 and control panel electric connection of temperature sensor, realized the automation of operation, practiced thrift the manpower.
The salinity sensor 8 is of a sinking type, the salinity sensor 8 is electrically connected with the control panel, a sensor signal is transmitted to the control program in real time, and the liquid medicine valve 10 automatically adjusts the flow rate to enable the salinity of the water to meet the requirement and realize automatic control.
Wherein, moisturizing case 1 passes through the tube coupling with adding medicine funnel 9, and is connected with liquid medicine valve 10 in the pipeline, and liquid medicine valve 10 and control panel electric connection, has realized the automatic adjustment of liquid medicine flow, has practiced thrift the manpower.
Wherein, circulating pump 3 passes through the pipeline and is connected with moisturizing case 1 and condensate tank 15 respectively, and circulating pump 3 and control panel electric connection, pass through circulating pump 3 and be connected with moisturizing case 1 and condensate tank 15 respectively through the pipeline, and circulating pump 3 and control panel electric connection, temperature sensor gives control panel with temperature signal transmission, and control panel well controls circulating pump 3 operation or closes according to temperature signal.
Wherein, filter 12 is installed to inside one side of moisturizing case 1, and filter 12 passes through the pipeline to be connected with water inlet 13, passes through the pipeline through filter 12 to be connected with water inlet 13, can realize recycling of comdenstion water, has practiced thrift the water resource, and the water that gets into in moisturizing case 1 is the water after the filtration guarantees the purity of water.
Wherein, cooling device 17 is equipped with the cooling pump, and cooling pump and control panel electric connection, through cooling pump and control panel electric connection, temperature sensor gives control panel with temperature signal transmission, and control panel has realized the automatic control purpose according to the discharge of temperature automatically regulated cooling pump.
The working principle is as follows: the advanced control system for the temperature of circulating water in the thermal power plant is characterized in that a salinity sensor 8 is installed on the top of a water replenishing tank 1, one end of the salinity sensor 8 is immersed in treated water 11, the top of the water replenishing tank 1 is connected with a liquid medicine valve 10 through a pipeline, one end of the liquid medicine valve 10 is connected with a medicine adding funnel 9 through a pipeline, one side of the water replenishing tank 1 is connected with a water replenishing pump 7 through a pipeline, the water replenishing pump 7 is connected with a condensate tank 15 through a pipeline, a temperature sensor 14 is installed on the top of the condensate tank 15, one end of the temperature sensor 14 is immersed in condensate water 6, the condensate tank 15 is connected to a boiler 2 through a pipeline, the boiler 2 is connected to a generator set 4 through a pipeline, the generator set 4 is connected to a steam pump 16 through a pipeline, the steam pump 16 is connected to a cooling device 17 through a pipeline, the cooling device 17 is connected to a booster pump 5 through a pipeline, the booster pump 5 is connected to the condensate tank 15 through a pipeline, one side of the condensate tank 15 is connected with a circulating pump 3 through a pipeline, the circulating pump 3 is connected to the water replenishing tank 1 through a pipeline, the temperature sensor 14 is installed at the upper end of the water condensing tank 15, one end of the temperature sensor 14 is immersed in the condensed water 6, the temperature sensor 14 is electrically connected with the control panel, the temperature sensor 14 monitors the temperature of the condensed water in real time, when the temperature of the condensed water meets the requirement, the circulating pump 3 is restarted to pump the condensed water into the water replenishing tank 1, the temperature sensor 14 is electrically connected with the control panel, the automation of operation is realized, the manpower is saved, the liquid medicine valve 10 is respectively connected with the medicine adding funnel 9 and the water replenishing tank 1 through pipelines, the liquid medicine valve 10 is electrically connected with the control panel, the automatic adjustment of the liquid medicine flow is realized, the manpower is saved, the circulating pump 3 is respectively connected with the water replenishing tank 1 and the water condensing tank 15 through pipelines, and the circulating pump 3 is electrically connected with the control panel, circulating pump 3 is connected with moisturizing case 1 and condensate tank 15 respectively through the pipeline, and circulating pump 3 and control panel electric connection, temperature sensor gives control panel with temperature signal transmission, control panel is according to the good operation of control circulating pump 3 of temperature signal or close, filter 12 is installed to 1 inside one side of moisturizing case, filter 12 passes through the pipeline and is connected with water inlet 13, pass through filter 12 and be connected with water inlet 13 through the pipeline, the water that can realize getting into in moisturizing case 1 is the water after the filtration guarantees the purity of water, be equipped with the cooling pump through cooling device 17, and cooling pump and control panel electric connection, temperature sensor transmits temperature signal for control panel, control panel is according to the discharge of temperature automatically regulated cooling pump, the automatic control purpose has been realized.
To facilitate understanding of the solution of the embodiments of the present invention and the effects thereof, a specific application example is given below. It will be understood by those skilled in the art that this example is merely for the purpose of facilitating an understanding of the present invention and that any specific details thereof are not intended to limit the invention in any way.
It will be appreciated by persons skilled in the art that the above description of embodiments of the invention is intended only to illustrate the benefits of embodiments of the invention and is not intended to limit embodiments of the invention to any examples given.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (5)
1. The advanced control system for the temperature of circulating water in the thermal power plant comprises a water replenishing tank (1) and is characterized in that a water inlet (13) is arranged on one side of the water replenishing tank (1), a salinity sensor (8) is installed on the top of the water replenishing tank (1), one end of a detection head of the salinity sensor (8) extends into the bottom of the water replenishing tank (1), a dosing funnel (9) is connected to the top of the water replenishing tank (1), treated water (11) is contained in the water replenishing tank (1), a water replenishing pump (7) is connected to one side of the water replenishing tank (1) through a pipeline, a condensing water tank (15) is connected to the water replenishing pump (7) through a pipeline, condensed water (6) is contained in the condensing water tank, a temperature sensor (14) is installed on the top of the condensing water tank (15), one end of the detection head of the temperature sensor (14) extends into the bottom of the condensing water tank (15), and the condensing water tank (15) is connected to a boiler (2) through a pipeline, the boiler (2) is connected to a generator set (4) through a pipeline, the generator set (4) is connected to a steam pump (16) through a pipeline, the steam pump (16) is connected to a cooling device (17) through a pipeline, the cooling device (17) is connected to a booster pump (5) through a pipeline, the booster pump (5) is connected to a condensate water tank (15) through a pipeline, one side of the condensate water tank (15) is connected with a circulating pump (3) through a pipeline, the circulating pump (3) is connected to a water replenishing tank (1) through a pipeline, and a control panel is installed on one side of the water replenishing tank;
the temperature sensor (14) is an insertion temperature sensor, the temperature sensor (14) is electrically connected with the control panel, the temperature of condensed water is monitored in real time through the temperature sensor (14), when the temperature of the condensed water meets the requirement, the circulating pump (3) is started again, the condensed water is pumped into the water replenishing tank (1), and the temperature sensor (14) is electrically connected with the control panel, so that the automation of operation is realized, and the manpower is saved;
the salinity sensor (8) is of a sinking type, the salinity sensor (8) is electrically connected with the control panel, a sensor signal is transmitted to the control program in real time, and the liquid medicine valve (10) automatically adjusts the flow rate to enable the salinity of the water to meet the requirement and realize automatic control.
2. The advanced control system for the temperature of circulating water of the thermal power plant as claimed in claim 1, wherein the water replenishing tank (1) is connected with the dosing funnel (9) through a pipeline, a liquid medicine valve (10) is connected in the pipeline, and the liquid medicine valve (10) is electrically connected with the control panel.
3. The advanced control system for the temperature of circulating water of a thermal power plant as claimed in claim 1, wherein the circulating pump (3) is respectively connected with the water replenishing tank (1) and the condensed water tank (15) through pipelines, and the circulating pump (3) is electrically connected with the control panel.
4. The advanced control system for the temperature of circulating water of a thermal power plant as claimed in claim 1, wherein a filter (12) is installed on one side inside the water replenishing tank (1), and the filter (12) is connected with the water inlet (13) through a pipeline.
5. The advanced control system for the temperature of circulating water of a thermal power plant as claimed in claim 1, wherein the cooling device (17) is provided with a cooling pump, and the cooling pump is electrically connected with the control panel.
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| CN202110009811.8A CN112783231B (en) | 2021-01-05 | 2021-01-05 | Advanced control system for circulating water temperature of thermal power plant |
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| CN202110009811.8A CN112783231B (en) | 2021-01-05 | 2021-01-05 | Advanced control system for circulating water temperature of thermal power plant |
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| CN112783231B true CN112783231B (en) | 2022-03-22 |
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| CN101995028A (en) * | 2010-11-02 | 2011-03-30 | 杨本洛 | Energy and water saving desulphuration integrated system for power plant |
| CN203501309U (en) * | 2013-08-01 | 2014-03-26 | 西安昊芯环境技术有限公司 | Heat exchange station intelligent-control energy-saving device |
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| CN211502949U (en) * | 2020-01-18 | 2020-09-15 | 栗俊杰 | Heat supply energy-saving device for thermal power plant |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205690625U (en) * | 2016-06-12 | 2016-11-16 | 上海林同炎李国豪土建工程咨询有限公司 | A kind of retracting device of air conditioning system steam condensate |
| CN206670026U (en) * | 2017-04-12 | 2017-11-24 | 中国人民解放军空军勤务学院 | A kind of oil buring water heating stove automaton |
| CN207423769U (en) * | 2017-11-14 | 2018-05-29 | 东莞市振科检测设备有限公司 | Testing machine water circulation control system |
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2021
- 2021-01-05 CN CN202110009811.8A patent/CN112783231B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101995028A (en) * | 2010-11-02 | 2011-03-30 | 杨本洛 | Energy and water saving desulphuration integrated system for power plant |
| CN203501309U (en) * | 2013-08-01 | 2014-03-26 | 西安昊芯环境技术有限公司 | Heat exchange station intelligent-control energy-saving device |
| CN105962409A (en) * | 2016-07-18 | 2016-09-28 | 红塔烟草(集团)有限责任公司 | Condensate recovery device of vacuum moisture regaining machine and vacuum moisture regaining machine |
| CN110746028A (en) * | 2019-12-13 | 2020-02-04 | 九江市美景水处理科技有限公司 | High-efficient environment-friendly high sewage treatment plant for salt waste water |
| CN211502949U (en) * | 2020-01-18 | 2020-09-15 | 栗俊杰 | Heat supply energy-saving device for thermal power plant |
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