CN-122015524-A - Operation monitoring method and system of indirect air cooling tower

CN122015524ACN 122015524 ACN122015524 ACN 122015524ACN-122015524-A

Abstract

The embodiment of the application discloses an operation monitoring method and system of an indirect air cooling tower, wherein a tower body heat dissipation circle of the indirect air cooling tower comprises a plurality of independent cooling triangle units distributed along the circumferential direction of the indirect air cooling tower; generating a unique time stamp for each acquisition period by the data processing center, carrying out association integration on the environmental meteorological parameter set, the operation parameter set and the independent tower outlet water temperature data of each cooling triangle unit under the same time stamp to construct a comprehensive analysis data set, and analyzing a non-uniform change rule of the tower outlet water temperature of each cooling triangle unit in the circumferential direction of the indirect air cooling tower based on the comprehensive analysis data set under different environmental wind conditions and different operation working conditions.

Inventors

WANG MINGYU
LIU JISHAN
YANG JING
GU QINGYAN
LIU ZHENFENG
ZHANG SHOUDE

Assignees

内蒙古和林发电有限责任公司

Dates

Publication Date: 20260512
Application Date: 20260210

Claims (10)

1. An operation monitoring method of an indirect air cooling tower, wherein a tower body heat dissipation peripheral ring of the indirect air cooling tower comprises a plurality of independent cooling triangle units distributed along the circumferential direction of the indirect air cooling tower, and the method is characterized by comprising the following steps: during the operation of the indirect air cooling tower, based on a unified clock reference provided by a data acquisition device according to a preset acquisition period, synchronously acquiring an operation parameter set for reflecting the overall operation state of the indirect air cooling tower, an environment meteorological parameter set at least comprising the environment wind speed and the environment wind direction and independent tower outlet water temperature data of each cooling triangle unit; transmitting the collected water temperature data of the environment meteorological parameter set, the operation parameter set and the independent tower outlet of each cooling triangle unit to a data processing center in real time; Generating a unique time stamp for each acquisition period by the data processing center, and carrying out association integration on the environmental meteorological parameter set, the operation parameter set and the independent tower outlet water temperature data of each cooling triangle unit under the same time stamp to construct a comprehensive analysis data set, wherein each data record of the comprehensive analysis data set comprises the time stamp, the environmental meteorological parameter set, the operation parameter set and a plurality of independent tower outlet water temperatures indexed by the number of the cooling triangle units; and under different environmental wind conditions and different operation conditions, analyzing a non-uniform change rule of the water temperature of each cooling triangular unit in the circumferential direction of the indirect air cooling tower based on the comprehensive analysis data set.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises, The operation parameter set comprises the inlet water temperature of the water inlet main pipe of the radiator, the outlet water temperature of the water return main pipe of the radiator and the circulating water flow of the circulating water main pipe; The environmental meteorological parameter set comprises an environmental wind speed, an environmental wind direction, an environmental dry bulb temperature, an environmental relative humidity and an environmental atmospheric pressure; The independent tower outlet water temperature data of each cooling triangle unit are obtained by measuring temperature measuring points on the water outlet pipeline of each cooling triangle of the indirect air cooling tower, and the independent tower outlet water temperature data of each cooling triangle unit are spatial distribution data of the circumferential outlet water temperature of the indirect air cooling tower.
3. The method of claim 1, wherein the plurality of individual cooling delta units are uniformly circumferentially distributed along the tower circumference of the indirect air cooling tower, and wherein collecting individual out-tower water temperature data for each cooling delta unit comprises: Two thermometers are arranged on the water outlet pipeline of each cooling triangle unit; And reading the measured values of the two thermometers, calculating an average value, and taking the average value as the tower outlet water temperature data of the current cooling triangle unit.
4. A method according to claim 3, wherein the resolution of each thermometer is no greater than 0.2 ℃, with a precision of no less than 0.5 level.
5. The method of claim 1, wherein synchronously acquiring the set of environmental meteorological parameters including at least an ambient wind speed and an ambient wind direction comprises: Collecting environmental meteorological parameters at a preset distance of the upwind direction of the indirect air cooling tower, wherein the preset distance is 30-50 meters away from the indirect air cooling tower, and the collecting height is 1.5 meters away from the ground; And respectively acquiring the ambient wind speed and the ambient wind direction based on the anemograph with the precision not lower than +/-0.1 m/s and the anemoscope with the precision not lower than +/-1 degrees.
6. The method of claim 2, wherein collecting the set of operating parameters comprises: collecting the inlet water temperature of the radiator water inlet main pipe and the outlet water temperature of the radiator water return main pipe by using a platinum resistance thermometer, wherein the resolution of the platinum resistance thermometer is not more than 0.2 ℃, and the precision of the platinum resistance thermometer is not less than 0.5 level; And selecting a straight pipe section with the length being more than 15 times of pipe diameter on the circulating water main pipe, installing an ultrasonic flowmeter on the straight pipe section, wherein the installation position of the ultrasonic flowmeter is not less than 10 times of pipe diameter from an upstream disturbance part and not less than 5 times of pipe diameter from a downstream disturbance part, and collecting the circulating water flow of the circulating water main pipe based on the ultrasonic flowmeter.
7. The method of claim 1, wherein the data acquisition device is a data acquisition card, and is configured to provide a unified clock reference, and to synchronously acquire, convert, and integrate signals output by the sensors, and send the signals to the data processing center.
8. The method of claim 1, wherein the data processing center is an industrial personal computer.
9. The method according to claim 1, wherein the method further comprises: Based on the comprehensive analysis data set, generating a distribution cloud chart or an analysis report for reflecting the circumferential water outlet temperature of the cooling tower under specific environmental wind conditions, wherein the distribution cloud chart or the analysis report is used for guiding wind resistance optimization of the indirect air cooling tower.
10. An operation monitoring system of an indirect air cooling tower, wherein a tower body heat dissipation circumferential ring of the indirect air cooling tower comprises a plurality of independent cooling triangle units distributed along the circumferential direction of the indirect air cooling tower, and the system is characterized by comprising: The data acquisition module is used for synchronously acquiring an operation parameter set for reflecting the whole operation state of the indirect air cooling tower, an environment meteorological parameter set at least comprising the environment wind speed and the environment wind direction and independent tower outlet water temperature data of each cooling triangle unit based on a unified clock reference provided by the data acquisition device according to a preset acquisition period during the operation of the indirect air cooling tower; the data transmission module is used for transmitting the acquired independent tower outlet water temperature data of the environmental meteorological parameter set, the operation parameter set and each cooling triangle unit to a data processing center in real time; The comprehensive analysis data set construction module is used for generating a unique time stamp for each acquisition period by the data processing center, and carrying out association integration on the environmental meteorological parameter set, the operation parameter set and the independent tower outlet water temperature data of each cooling triangle unit under the same time stamp to construct a comprehensive analysis data set, wherein each data record of the comprehensive analysis data set comprises the time stamp, the environmental meteorological parameter set, the operation parameter set and a plurality of independent tower outlet water temperatures indexed by the numbers of the cooling triangle units; And the water outlet state analysis module is used for analyzing the non-uniformity change rule of the water temperature of each cooling triangular unit outlet tower in the circumferential direction of the indirect air cooling tower based on the comprehensive analysis data set under different environmental wind conditions and different operation working conditions.

Description

Operation monitoring method and system of indirect air cooling tower Technical Field The application relates to the technical field of cooling tower control, in particular to an operation monitoring method and system of an indirect air cooling tower. Background The indirect air cooling tower is used as an efficient water-saving cooling device and is widely applied to areas with relatively deficient water resources. However, the common environment in winter in the corresponding region has larger wind, and the stable and efficient operation of the indirect air cooling tower is provided with a serious challenge. When the ambient air flows through the indirect air cooling tower, complicated air flow field changes are generated at different positions in the circumferential direction of the tower due to the influence of the tower body structure and the wind direction of the indirect air cooling tower. This variation causes significant differences in the intake conditions and heat dissipation efficiency of the cooling delta units, thereby causing uneven distribution of the outlet water temperature in the circumferential direction of the tower. The phenomenon of 'thermal state non-uniformity' not only reduces the overall cooling efficiency of the air cooling tower, but also can cause local freezing risks when severe, thereby threatening the safe operation of the unit. The existing macroscopic monitoring method cannot capture dynamic characteristics of uneven microscopic thermodynamic distribution in the tower body caused by environmental wind, and cannot formulate effective wind prevention and wind resistance optimization measures and lack of accurate data support and theoretical basis. Therefore, the scheme capable of revealing the internal influence law of the phenomenon of 'thermal state non-uniformity' is urgently needed to appear, and a technical means is provided for fundamentally improving the operation performance of the air cooling tower in a strong wind environment. Disclosure of Invention The application provides an operation monitoring method and system of an indirect air cooling tower, which are used for solving the defects in the prior art. According to a first aspect of an embodiment of the present application, there is provided an operation monitoring method of an indirect air-cooling tower, a tower body heat dissipation circumferential ring of the indirect air-cooling tower includes a plurality of independent cooling delta units distributed along a circumferential direction of the indirect air-cooling tower, the method including: during the operation of the indirect air cooling tower, based on a unified clock reference provided by a data acquisition device according to a preset acquisition period, synchronously acquiring an operation parameter set for reflecting the overall operation state of the indirect air cooling tower, an environment meteorological parameter set at least comprising the environment wind speed and the environment wind direction and independent tower outlet water temperature data of each cooling triangle unit; transmitting the collected water temperature data of the environment meteorological parameter set, the operation parameter set and the independent tower outlet of each cooling triangle unit to a data processing center in real time; Generating a unique time stamp for each acquisition period by the data processing center, and carrying out association integration on the environmental meteorological parameter set, the operation parameter set and the independent tower outlet water temperature data of each cooling triangle unit under the same time stamp to construct a comprehensive analysis data set, wherein each data record of the comprehensive analysis data set comprises the time stamp, the environmental meteorological parameter set, the operation parameter set and a plurality of independent tower outlet water temperatures indexed by the number of the cooling triangle units; and under different environmental wind conditions and different operation conditions, analyzing a non-uniform change rule of the water temperature of each cooling triangular unit in the circumferential direction of the indirect air cooling tower based on the comprehensive analysis data set. In some embodiments, the set of operating parameters includes an inlet water temperature of the radiator water inlet header, an outlet water temperature of the radiator water return header, and a circulating water flow rate of the circulating water header; The environmental meteorological parameter set comprises an environmental wind speed, an environmental wind direction, an environmental dry bulb temperature, an environmental relative humidity and an environmental atmospheric pressure; The independent tower outlet water temperature data of each cooling triangle unit are obtained by measuring temperature measuring points on the water outlet pipeline of each cooling triangle of the indirect air cooling tower, and the ind