CN107607579B - Wet cooling tower thermal performance online monitoring system and method - Google Patents
Wet cooling tower thermal performance online monitoring system and method Download PDFInfo
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- CN107607579B CN107607579B CN201710822986.4A CN201710822986A CN107607579B CN 107607579 B CN107607579 B CN 107607579B CN 201710822986 A CN201710822986 A CN 201710822986A CN 107607579 B CN107607579 B CN 107607579B
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Abstract
The invention discloses a system and a method for monitoring the thermal performance of a wet cooling tower on line. The system for monitoring the thermal performance of the wet cooling tower on line comprises an environmental parameter acquisition device, a monitoring device and a monitoring system, wherein the environmental parameter acquisition device is used for acquiring environmental information above the wet cooling tower; and a tower thermal performance parameter acquisition device for acquiring corresponding tower thermal performance parameters at each measurement point; the measuring points of the air temperature above the dehydrator, the air speed above the dehydrator, the water temperature above the filler and the water temperature below the filler are respectively arranged in at least two layers according to different elevations, each layer is arranged along the cross radius, and the number of the measuring points of each layer is determined by utilizing the principle of an equiplanar ring; measuring points of the water temperature on the surface of the water pool are arranged on the surface of the water collecting pool according to the equal surface ring principle; the number of the measuring points of the water temperature of the circulating water entering the tower is at least two, the measuring points are symmetrically and uniformly arranged in the water distribution shaft, and the number of the measuring points of the water temperature of the circulating water exiting the tower is at least two, and the measuring points are uniformly and symmetrically arranged at the outlet of the water collecting tank.
Description
Technical Field
The invention belongs to the field of energy power engineering, and particularly relates to a system and a method for monitoring the thermal performance of a wet cooling tower on line.
Background
The wet cooling tower is one of the main devices of the cold end system, and the economic efficiency and stability of the power plant are greatly influenced by the performance of the cooling tower. The low efficiency of the cooling tower can increase the temperature of the circulating water, the increase of the circulating water temperature can reduce the vacuum of the condenser, the working efficiency of the turboset is reduced, the output of equipment is reduced, the coal consumption of power generation is increased, and the heat efficiency of the turboset is influenced.
The wet cooling tower has large volume, complicated aerodynamic field and temperature field in the tower, uneven distribution of gas-water ratio at different positions in the tower, and uneven distribution of temperature and wind speed at different positions. Thus, the temperature (or velocity) at a single location does not represent the temperature (or velocity) of the entire column.
Under the crosswind environment, the external crosswind causes uneven circumferential air intake of the cooling tower, so the ventilation at different radiuses in the tower is uneven, the flow field in the tower is more complex, namely, the heat and mass transfer performances at different positions have larger difference, and the overall heat and mass transfer performance of the cooling tower is deteriorated.
In the existing monitoring systems (such as DCS, SIS, and the like) of power plants, performance parameters related to a cooling tower are not reflected to performance parameters of a wet cooling tower except for water temperatures of an inlet and an outlet of a condenser, so that thermal performance parameters of the whole cooling tower, such as related performance parameters of a filler area, a rain area and a water distribution area, cannot be monitored in real time, and therefore, the optimal operation of the whole cold end system is not facilitated.
Therefore, there is a need for an online monitoring system to accurately and reliably obtain performance parameters at different positions in a tower, develop an online monitoring system for thermal performance of a wet cooling tower, realize data remote transmission from the wet cooling tower to a control room, monitor typical performance parameters of the wet cooling tower in the control room in real time, and accurately evaluate the thermal performance of the wet cooling tower in real time, so as to track the performance of a cold end system, provide guidance for optimal operation of the wet cooling tower, lay a theoretical foundation for energy-saving modification and optimal design of the wet cooling tower in the next step, and provide direction guidance.
Disclosure of Invention
In order to solve the defects of the prior art, a first object of the present invention is to provide an online monitoring system for thermal performance of a wet cooling tower, which arranges measuring points at different positions in the tower to monitor related thermal performance parameters, and implements real-time remote transmission of data, real-time monitoring at a monitoring terminal of a power plant control room or a factory office, and real-time monitoring of the related thermal performance parameters of the wet cooling tower by an operation manager.
The principle of the isoplanar ring of the invention is as follows: the testing area is divided into a plurality of concentric ring areas distributed along the radial direction, the areas of the ring areas are equal, and the number of the divided ring areas is determined according to the field situation.
The invention provides an on-line monitoring system for the thermal performance of a wet cooling tower, wherein the thermal performance parameters of the wet cooling tower comprise environmental parameters and tower internal thermal performance parameters, and the tower internal thermal performance parameters comprise an air temperature above a dehydrator, an air speed above the dehydrator, a water temperature above a filler, a water temperature below the filler, a water pool surface water temperature and a water temperature of circulating water entering and exiting the tower;
the system comprises an environmental parameter acquisition device, a wet cooling tower and a control device, wherein the environmental parameter acquisition device is used for acquiring environmental information above the wet cooling tower; and a tower thermal performance parameter acquisition device for acquiring corresponding tower thermal performance parameters at each measurement point;
the measuring points of the air temperature above the dehydrator, the air speed above the dehydrator, the water temperature above the filler and the water temperature below the filler are respectively arranged in at least two layers according to different elevations, each layer is arranged along the cross radius, and the number of the measuring points of each layer is determined by utilizing the principle of an equiplanar ring; measuring points of the water temperature on the surface of the water pool are arranged on the surface of the water collecting pool according to the equal surface ring principle; the number of the measuring points of the water temperature of the circulating water entering the tower is at least two, the measuring points are symmetrically and uniformly arranged in the water distribution shaft, and the number of the measuring points of the water temperature of the circulating water exiting the tower is at least two, and the measuring points are uniformly and symmetrically arranged at the outlet of the water collecting tank.
Furthermore, measuring points of the air temperature above the dehydrator and the air speed above the dehydrator are arranged on the same support, and the support is fixed above the dehydrator.
Furthermore, a measuring point of the water temperature above the filler is installed and fixed in the spoon-shaped water collecting pipe, the upper end of the spoon-shaped water collecting pipe is fixed on the dehydrator, the measuring point end of the water temperature above the filler is placed above the filler, and the flaring section of the spoon-shaped water collecting pipe is used for collecting spray water and keeping the water temperature measuring point to be completely immersed in the water.
Wherein, the spoon-shaped water collecting pipe is made of PVC or steel structure.
It should be noted that the spoon-shaped water collecting pipe can also be made of other plastic materials.
Furthermore, a measuring point of the water temperature below the filler is fixedly arranged in a vertical water collecting pipe, the vertical water collecting pipe is fixed on the filler supporting device, the measuring point end of the water temperature below the filler abuts against the lower side of the filler, and a flaring section of the vertical water collecting pipe is used for collecting circulating water cooled by the filler and keeping the water temperature measuring point completely immersed in the water.
Wherein, the vertical water collecting pipe is made of PVC or steel structure.
It should be noted that the vertical water collecting pipe can also be made of other plastic materials.
Furthermore, a measuring point of the water temperature on the surface of the water pool is fixedly arranged on the cooling tower supporting upright post.
Furthermore, the system also comprises a central master station which is respectively connected with the environmental parameter acquisition device and the tower thermal performance parameter acquisition device.
Furthermore, the central master station is communicated with the environmental parameter acquisition device and the tower thermal performance parameter acquisition device through a Zigbee network.
The Zigbee network data transmission mode can realize real-time synchronous data acquisition, and has the characteristics of strong anti-interference capability and flexible networking.
Furthermore, the central main station is also connected with a remote monitoring terminal.
The second purpose of the invention is to provide a monitoring method of the on-line thermal performance monitoring system of the wet cooling tower.
The invention discloses a monitoring method of a thermal performance on-line monitoring system of a wet cooling tower, which comprises the following steps:
collecting environmental information above the wet cooling tower by using an environmental parameter collecting device; collecting corresponding tower thermal performance parameters at each measuring point by using a tower thermal performance parameter collecting device; the measuring points of the air temperature above the dehydrator, the air speed above the dehydrator, the water temperature above the filler and the water temperature below the filler are respectively arranged in at least two layers according to different elevations, each layer is arranged along the cross radius, and the number of the measuring points of each layer is determined by utilizing the principle of an equiplanar ring; measuring points of the water temperature on the surface of the water pool are arranged on the surface of the water collecting pool according to the equal surface ring principle; the number of the measuring points of the water temperature of the circulating water entering the tower is at least two, the measuring points are symmetrically and uniformly arranged in the water distribution shaft, and the number of the measuring points of the water temperature of the circulating water exiting the tower is at least two, and the measuring points are uniformly and symmetrically arranged at the outlet of the water collecting tank.
Further, the method further comprises:
data acquired by the environmental parameter acquisition device and the tower thermal performance parameter acquisition device are transmitted to a central main station through a Zigbee network, and data at measuring points of the thermal performance parameters in the same tower are accumulated in the central main station and averaged to obtain a corresponding thermal performance parameter measurement value of the wet cooling tower;
and the central master station transmits the obtained corresponding thermal performance parameter measured value of the wet cooling tower to a remote monitoring terminal for real-time monitoring.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention fills the vacancy of cooling performance parameters of the cooling tower in the current power plant monitoring system, and realizes the real-time monitoring of the thermal performance of the wet cooling tower.
(2) The monitoring system can complete the on-line monitoring of the performance parameters under different environmental wind speeds, namely the monitoring system is not limited by the environmental wind speeds.
(3) The invention overcomes the defect that the performance parameter measurement is difficult due to uneven water vapor distribution and complex flow field in the wet cooling tower, and aims at the wet cooling tower, measuring points are arranged at different elevations based on the principle of an equal surface ring to respectively measure and calculate the thermal performance and the resistance performance parameters of a water distribution area, a filler area and a rain area of the wet cooling tower, thereby accurately evaluating the heat and mass transfer characteristics of the whole tower, realizing the real-time monitoring of a monitoring terminal near the wet cooling tower, monitoring and obtaining the performance parameters (such as wind speed, temperature and the like) at different positions in the tower, accurately calculating the heat and mass transfer performance of the wet cooling tower, the method has great significance for tracking the performance of a cold end system in real time and further monitoring the circulating heat efficiency of the whole unit, lays a theoretical foundation for energy-saving reconstruction and optimal design of a wet cooling tower in the next step, and provides direction guidance.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of the distribution of measurement points in each layer of a tower;
FIG. 2 is a schematic view of a cross-sectional installation of a station arrangement in a tower;
FIG. 3 is a schematic view of the distribution of the measuring points on a certain radius above the dehydrator;
FIG. 4 is a schematic view of the arrangement of water temperature measuring points above the packing;
FIG. 5 is a schematic view of the arrangement of water temperature measuring points below the filler;
FIG. 6 is a schematic view of the arrangement of water temperature measuring points of the circulating water entering the tower;
FIG. 7 is a schematic diagram of the arrangement of water temperature measuring points on the surface of a water pool;
fig. 8 is a schematic structural diagram of a system for on-line monitoring of the thermal performance of a wet cooling tower.
1, a wet cooling tower drum; 2. measuring points for temperature and wind speed above the dehydrator; 3. measuring a water temperature point above the filler; 4. measuring a water temperature point below the filler; 5. circulating water flows out of the tower and is measured at a water temperature point; 6. a water collecting tank; 7. a dehydrator; 8. a filler; 9. a spoon-shaped water collecting pipe; 10. a water spraying nozzle; 11. a vertical water collecting pipe; 12. circulating water enters a tower water temperature measuring point; 13. a water distribution vertical shaft; 14. a cross corridor; 15. the cooling tower supports the column.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
(1) The wet cooling tower comprises a medium wet cooling tower (such as a 150MW-350MW unit cooling tower), a large wet cooling tower (350MW-660MW unit cooling tower) and an ultra-large wet cooling tower (660 + 1000MW or even larger unit cooling tower).
(2) The wet cooling performance parameters of the present invention include: environmental parameters and related thermal performance parameters within the tower.
(a) The environmental parameters comprise an environmental dry bulb temperature, an environmental wet bulb temperature, atmospheric pressure, an environmental wind speed and an environmental wind direction, and are measured by a small meteorological station arranged on the cooling tower in an open area with the wind direction of 30-50 m.
(b) The tower internal thermal performance parameters comprise the temperature of air above the dehydrator, the air speed above the dehydrator, the temperature of water above the filler, the temperature of water below the filler, the temperature of water on the surface of the water tank and the temperature of water of circulating water entering and exiting the tower.
The invention discloses an online monitoring system for the thermal performance of a wet cooling tower, which comprises an environmental parameter acquisition device, a monitoring device and a monitoring device, wherein the environmental parameter acquisition device is used for acquiring environmental information above the wet cooling tower; and a tower thermal performance parameter acquisition device for acquiring corresponding tower thermal performance parameters at each measurement point; the measuring points of the air temperature above the dehydrator, the air speed above the dehydrator, the water temperature above the filler and the water temperature below the filler are respectively arranged in at least two layers according to different elevations, each layer is arranged along the cross radius, and the number of the measuring points of each layer is determined by utilizing the principle of an equiplanar ring; measuring points of the water temperature on the surface of the water pool are arranged on the surface of the water collecting pool according to the equal surface ring principle; the number of the measuring points of the water temperature of the circulating water entering the tower is at least two, the measuring points are symmetrically and uniformly arranged in the water distribution shaft, and the number of the measuring points of the water temperature of the circulating water exiting the tower is at least two, and the measuring points are uniformly and symmetrically arranged at the outlet of the water collecting tank.
In the figure 1, in order to monitor the performance parameters in the tower of a wet cooling tower barrel 1, a measuring point 2 for the air temperature and the air speed above a dehydrator, a measuring point 3 for the water temperature above a filler, a measuring point 4 for the water temperature below the filler, a measuring point 5 for the water temperature of circulating water out of the tower and a measuring point 12 for the water temperature of circulating water in the tower are arranged.
For example:
except for a circulating water inlet tower water temperature measuring point and a circulating water outlet tower water temperature measuring point, four layers of performance parameter measuring points are arranged according to different elevations and are respectively arranged on an upper layer of a dehydrator, an upper layer of a filler, a lower layer of the filler and a water surface layer of a water collecting tank 6, as shown in figure 1, each layer is arranged along a cross radius, the number of the measuring points on each layer is 24-48 and is unequal, and the specific number is determined by calculation based on an equal surface ring principle as shown in figure 2.
Wherein, four layers of temperature measurement points include: a layer of wind speed measuring points are arranged above the dehydrator 7, above the filler 8, below the filler 8 and on the surface of the water collecting tank 6.
It should be noted that the measuring points of the air temperature above the dehydrator, the air speed above the dehydrator, the water temperature above the filler and the water temperature below the filler can be respectively arranged at two layers, three layers or five layers according to different elevations, and the description will not be repeated here.
As shown in FIG. 3, air temperature measuring points and wind speed measuring points are respectively arranged above the dehydrator, the air temperature measuring points and the wind speed measuring points at all positions are all arranged on the same support at the positions, the support is fixed above the dehydrator, and the measuring points at the layer measure the tower air temperature and the wind speed above the dehydrator.
As shown in fig. 4, water temperature measuring points are arranged above the filler, each water temperature measuring point is installed and fixed in the spoon-shaped water collecting pipe 9, and the flaring section of the spoon-shaped water collecting pipe 9 can collect the shower water of the shower nozzle 10 and keep the water temperature measuring points completely immersed in the water. The upper end of the spoon-shaped water collecting pipe 9 is fixed on the dehydrator 7, and the measuring point end is placed above the filler 8.
Wherein, the spoon-shaped water collecting pipe 9 can be made of PVC or other plastic materials, and can also be made of steel structures.
And according to the data of the measuring point above the filler and the measuring point above the dehydrator, the thermal performance of the water distribution area can be evaluated.
As shown in FIG. 5, water temperature measuring points are arranged below the filler 8, each water temperature measuring point is fixedly installed in the vertical water collecting pipe 11, and the flaring section of the vertical water collecting pipe 11 can collect the circulating water cooled by the filler and keep the water temperature measuring points completely immersed in the water. The vertical water collecting pipe 11 is fixed on the filler supporting device, and the measuring point end abuts against the lower side of the filler.
The vertical water collecting pipe 11 can be made of PVC or other plastic materials, and can also be made of a steel structure.
According to the data of water temperature measuring points above the filler and below the filler, the thermal performance of the filler area can be evaluated.
As shown in fig. 6, a total of 4 circulating water inlet tower temperature measuring points are provided as an example:
the circulating water inflow tower temperature measuring points 12 are symmetrically and uniformly arranged in the water distribution vertical shaft 13 and are in the shape of a cross corridor 14. And in the performance evaluation, the average value of 4 measuring points is taken as the water temperature entering the tower. The temperature of the circulating water flowing out of the tower is set at the outlet of the water collecting tank, 4 measuring points are averagely arranged, and the average value of the 4 measuring points is taken as the temperature of the circulating water flowing out of the tower.
In addition, the number of the circulating water inlet tower temperature measuring points can be 3 or 5.
As shown in FIG. 7, the water temperature measuring points on the surface of the water pool are also arranged on the surface of the water collecting pool according to the principle of an equal surface ring, and the measuring points are fixedly arranged on the cooling tower supporting upright post 15.
The thermal performance of the rain area can be evaluated through the water temperature on the surface of the water collecting tank 6 and the water temperature below the filler.
According to the measured point data of the water temperature entering the tower and the water temperature leaving the tower, the temperature drop of the whole tower can be calculated, the integral cooling performance of the cooling tower is further evaluated, and the cooling performance of the cooling tower is compared and analyzed with the cooling performance of a water distribution area, a filling area and a rain area.
As shown in fig. 8, the system further includes a central master station, and the central master station is connected to the environmental parameter collecting device and the tower thermal performance parameter collecting device, respectively.
The central master station is communicated with the environment parameter acquisition device and the tower internal thermal performance parameter acquisition device through a Zigbee network. The central main station is also connected with the remote monitoring terminal.
The Zigbee network data transmission mode can realize real-time synchronous data acquisition, and has the characteristics of strong anti-interference capability and flexible networking.
Specifically, the data acquisition equipment arranged near the periphery of the tower converts the collected current signals into wireless signals and transmits the wireless signals to the matched central main station in a wireless mode, the central main station forwards the wireless signals to the repeater, and then the repeater remotely transmits the real-time data to the remote monitoring terminal.
The real-time monitoring system also comprises a remote monitoring terminal and a power plant monitoring system (monitoring terminal);
the remote monitoring terminal processes the received data and inputs the processed data into a wet cooling tower parameter monitoring module embedded in a power plant monitoring system (such as DCS, SIS and the like), so that the real-time monitoring of the real-time cooling performance parameters of the wet cooling tower by workers in the monitoring terminal (a control room or a factory office) is realized.
The measuring instruments used for measuring the various performance parameters in the present invention are shown in Table 1.
TABLE 1 measurement parameters and instruments used therefor
The invention is based on a monitoring method of a wet cooling tower thermodynamic performance on-line monitoring system as shown in figure 8, which comprises the following steps:
collecting environmental information above the wet cooling tower by using an environmental parameter collecting device; and
collecting corresponding tower thermal performance parameters at each measuring point by using a tower thermal performance parameter collecting device; the measuring points of the air temperature above the dehydrator, the air speed above the dehydrator, the water temperature above the filler and the water temperature below the filler are respectively arranged in at least two layers according to different elevations, each layer is arranged along the cross radius, and the number of the measuring points of each layer is determined by utilizing the principle of an equiplanar ring; measuring points of the water temperature on the surface of the water pool are arranged on the surface of the water collecting pool according to the equal surface ring principle; the number of the measuring points of the water temperature of the circulating water entering the tower is at least two, the measuring points are symmetrically and uniformly arranged in the water distribution shaft, and the number of the measuring points of the water temperature of the circulating water exiting the tower is at least two, and the measuring points are uniformly and symmetrically arranged at the outlet of the water collecting tank.
Further, the method further comprises:
data acquired by the environmental parameter acquisition device and the tower thermal performance parameter acquisition device are transmitted to a central main station through a Zigbee network, and data at measuring points of the thermal performance parameters in the same tower are accumulated in the central main station and averaged to obtain a corresponding thermal performance parameter measurement value of the wet cooling tower;
and the central master station transmits the obtained corresponding thermal performance parameter measured value of the wet cooling tower to a remote monitoring terminal for real-time monitoring.
The invention fills the gap of the cooling performance parameters of the cooling tower in the current power plant monitoring system, and realizes the real-time monitoring of the thermal performance of the large wet cooling tower.
The monitoring system can complete the on-line monitoring of the performance parameters under different environmental wind speeds, namely the monitoring system is not limited by the environmental wind speeds.
The invention overcomes the defect that the performance parameter measurement is difficult due to uneven water vapor distribution and complex flow field in the wet cooling tower, and aims at the wet cooling tower, measuring points are arranged at different elevations based on the principle of an equal surface ring, and the thermodynamic performance and the resistance performance parameters of a water distribution area, a filler area and a rain area of the wet cooling tower are respectively measured and calculated, so that the heat and mass transfer characteristics of the whole tower can be accurately evaluated, the real-time monitoring of a monitoring terminal near the wet cooling tower is realized, the performance parameters (such as wind speed, temperature and the like) at different positions in the tower can be monitored and obtained, the heat and mass transfer performance of the wet cooling tower is accurately calculated, the performance of a cold end system is tracked in real time, the invention has great significance for monitoring the circulating heat efficiency of the whole unit, a theoretical basis is laid for the energy-saving modification and the optimized design of the wet cooling tower in the next.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (9)
1. The system is characterized in that the thermal performance parameters of the wet cooling tower comprise environmental parameters and tower internal thermal performance parameters, and the tower internal thermal performance parameters comprise the temperature above a dehydrator, the wind speed above the dehydrator, the temperature above a filler, the temperature below the filler, the temperature on the surface of a water tank and the temperature of circulating water entering and leaving the tower;
the system comprises an environmental parameter acquisition device, a wet cooling tower and a control device, wherein the environmental parameter acquisition device is used for acquiring environmental information above the wet cooling tower; and a tower thermal performance parameter acquisition device for acquiring corresponding tower thermal performance parameters at each measurement point; the measuring points of the air temperature above the dehydrator, the air speed above the dehydrator, the water temperature above the filler and the water temperature below the filler are respectively arranged in at least two layers according to different elevations, each layer is arranged along the cross radius, and the number of the measuring points of each layer is determined by utilizing the principle of an equiplanar ring; measuring points of the water temperature on the surface of the water pool are arranged on the surface of the water collecting pool according to the equal surface ring principle; the number of the measuring points for the temperature of the circulating water entering the tower is at least two, and the measuring points are symmetrically and uniformly distributed in the water distribution shaft, and the number of the measuring points for the temperature of the circulating water exiting the tower is at least two, and the measuring points are uniformly and symmetrically distributed at the outlet of the water collecting tank;
a measuring point of water temperature above the filler is installed and fixed in the spoon-shaped water collecting pipe, the upper end of the spoon-shaped water collecting pipe is fixed on the dehydrator, the measuring point end of the water temperature above the filler is placed above the filler, and the flaring section of the spoon-shaped water collecting pipe is used for collecting spray water and keeping the water temperature measuring point to be completely immersed in the water;
the principle of the equal surface ring is as follows: the testing area is divided into a plurality of concentric ring areas distributed along the radial direction, the areas of the ring areas are equal, and the number of the divided ring areas is determined according to the field situation.
2. An on-line thermal performance monitoring system for a wet cooling tower as claimed in claim 1, wherein the measuring points of the air temperature above the dehydrator and the air speed above the dehydrator are all mounted on the same bracket, and the bracket is fixed above the dehydrator.
3. The on-line thermal performance monitoring system of the wet cooling tower as claimed in claim 1, wherein the measuring point of the water temperature below the filler is fixed in a vertical water collecting pipe which is fixed on the filler supporting device, the measuring point end of the water temperature below the filler is close to the lower side of the filler, and the flaring section of the vertical water collecting pipe is used for collecting the circulating water cooled by the filler and keeping the water temperature measuring point completely immersed in the water.
4. The on-line thermal performance monitoring system of a wet cooling tower as claimed in claim 1, wherein the measuring point of the water temperature on the surface of the water pool is fixedly installed on the supporting column of the cooling tower.
5. An on-line thermal performance monitoring system for a wet cooling tower as claimed in claim 1, further comprising a central master station, wherein said central master station is connected to the environmental parameter collecting device and the in-tower thermal performance parameter collecting device respectively.
6. The system of claim 5, wherein the central master station communicates with the environmental parameter acquisition device and the intra-tower thermal performance parameter acquisition device via a Zigbee network.
7. An on-line thermal performance monitoring system for a wet cooling tower as claimed in claim 5, wherein said central host station is further connected to a remote monitoring terminal.
8. A method for monitoring an on-line thermal performance monitoring system of a wet cooling tower according to claim 1, comprising:
collecting environmental information above the wet cooling tower by using an environmental parameter collecting device; and
collecting corresponding tower thermal performance parameters at each measuring point by using a tower thermal performance parameter collecting device; the measuring points of the air temperature above the dehydrator, the air speed above the dehydrator, the water temperature above the filler and the water temperature below the filler are respectively arranged in at least two layers according to different elevations, each layer is arranged along the cross radius, and the number of the measuring points of each layer is determined by utilizing the principle of an equiplanar ring; measuring points of the water temperature on the surface of the water pool are arranged on the surface of the water collecting pool according to the equal surface ring principle; the number of the measuring points of the water temperature of the circulating water entering the tower is at least two, the measuring points are symmetrically and uniformly arranged in the water distribution shaft, and the number of the measuring points of the water temperature of the circulating water exiting the tower is at least two, and the measuring points are uniformly and symmetrically arranged at the outlet of the water collecting tank.
9. A method for monitoring an on-line thermal performance monitoring system of a wet cooling tower as set forth in claim 8, further comprising:
data acquired by the environmental parameter acquisition device and the tower thermal performance parameter acquisition device are transmitted to a central main station through a Zigbee network, and data at measuring points of the thermal performance parameters in the same tower are accumulated in the central main station and averaged to obtain a corresponding thermal performance parameter measurement value of the wet cooling tower;
and the central master station transmits the obtained corresponding thermal performance parameter measured value of the wet cooling tower to a remote monitoring terminal for real-time monitoring.
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| CN109030041B (en) * | 2018-06-06 | 2019-06-11 | 西安交通大学 | Natural draft counter-flow wet cooling tower efficiency measurement method |
| SI25795A (en) * | 2019-02-07 | 2020-08-31 | Js Energija D.O.O. | Device and procedure for humid air measurement in the cooling towers |
| CN109974894A (en) * | 2019-04-24 | 2019-07-05 | 润电能源科学技术有限公司 | A kind of temperature measurement system of cooling tower |
| CN112068561A (en) * | 2020-08-31 | 2020-12-11 | 华北电力科学研究院有限责任公司 | Automatic inspection device of indirect air cooling tower |
| CN112798318B (en) * | 2021-02-06 | 2023-04-25 | 济南蓝辰能源技术有限公司 | Cold junction performance monitoring and intelligent diagnosis system of wet cooling unit |
| CN114577842B (en) * | 2022-05-07 | 2022-07-01 | 江苏双辉环境科技有限公司 | Cooling tower filler performance test bench |
| CN117805010A (en) * | 2024-02-28 | 2024-04-02 | 江苏双辉环境科技有限公司 | Cooling tower packing performance experiment detection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798537A (en) * | 2012-07-30 | 2012-11-28 | 中国能源建设集团广东省电力设计研究院 | Simulative testing device for rain-zone resistance of reverse-flow natural ventilation wet-type cooling tower |
| CN202631283U (en) * | 2012-06-05 | 2012-12-26 | 新菱空调(佛冈)有限公司 | Online intelligent monitoring system for thermal performance of cooling tower |
| CN103293013A (en) * | 2013-05-13 | 2013-09-11 | 华南理工大学 | Method and system for evaluating thermal performance of cooling tower |
| CN104239597A (en) * | 2014-07-02 | 2014-12-24 | 新菱空调(佛冈)有限公司 | Cooling tower modeling method based on RBF neural network |
| CN104360984A (en) * | 2014-12-03 | 2015-02-18 | 华南理工大学 | Calculating method for measuring thermal performance of filler of lower cooling tower based on two-point boundary value |
| CN204201492U (en) * | 2014-04-29 | 2015-03-11 | 国家电网公司 | The real-time monitoring device that a kind of high-pressure power plant feed water preheater bypass duct leaks |
| CN105674764A (en) * | 2016-04-05 | 2016-06-15 | 哈尔滨宇神科技有限公司 | Inner and outer air flow guiding device for cooling tower and flow guiding method |
-
2017
- 2017-09-13 CN CN201710822986.4A patent/CN107607579B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202631283U (en) * | 2012-06-05 | 2012-12-26 | 新菱空调(佛冈)有限公司 | Online intelligent monitoring system for thermal performance of cooling tower |
| CN102798537A (en) * | 2012-07-30 | 2012-11-28 | 中国能源建设集团广东省电力设计研究院 | Simulative testing device for rain-zone resistance of reverse-flow natural ventilation wet-type cooling tower |
| CN103293013A (en) * | 2013-05-13 | 2013-09-11 | 华南理工大学 | Method and system for evaluating thermal performance of cooling tower |
| CN204201492U (en) * | 2014-04-29 | 2015-03-11 | 国家电网公司 | The real-time monitoring device that a kind of high-pressure power plant feed water preheater bypass duct leaks |
| CN104239597A (en) * | 2014-07-02 | 2014-12-24 | 新菱空调(佛冈)有限公司 | Cooling tower modeling method based on RBF neural network |
| CN104360984A (en) * | 2014-12-03 | 2015-02-18 | 华南理工大学 | Calculating method for measuring thermal performance of filler of lower cooling tower based on two-point boundary value |
| CN105674764A (en) * | 2016-04-05 | 2016-06-15 | 哈尔滨宇神科技有限公司 | Inner and outer air flow guiding device for cooling tower and flow guiding method |
Non-Patent Citations (1)
| Title |
|---|
| 冷却塔热力性能在线监测装置及系统研制;刘桂雄等;《中国测试》;20130731;第39卷(第4期);第64-68页 * |
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