Cooling tower water spraying filler thermal performance monitoring method and device and electronic equipment

Abstract

The application relates to the technical field of cooling towers, in particular to a cooling tower water spraying filler thermal performance monitoring method and device and electronic equipment, wherein the method comprises the following steps: acquiring first operation parameters of a cooling tower and second operation parameters of multiple water spraying filler micro units of the cooling tower; based on at least one of the first operation parameters and the second operation parameters, calculating actual cooling numbers of each water spraying filler micro unit, and acquiring reference cooling numbers of each water spraying filler micro unit; based on the actual cooling numbers and the reference cooling numbers, calculating cooling number attenuation coefficients of each water spraying filler micro unit, and monitoring the thermal performance of the water spraying filler of the cooling tower according to the cooling number attenuation coefficients. Thus, the problems in the prior art that the thermal performance of a local area of a water spraying filler of a cooling tower cannot be monitored, and it is difficult to accurately locate the specific area of performance attenuation are solved.

Description

Technical Field

[0001] This application relates to the field of cooling tower technology, and in particular to a method, device and electronic equipment for monitoring the thermal performance of cooling tower water spray packing. Background Technology

[0002] Natural draft counterflow cooling towers are important equipment in thermal power plants, and their performance directly affects the economic benefits and safe operation of the power plant.

[0003] Currently, a large amount of research, experimentation, and field testing have been conducted on the cooling performance of cooling towers in related technologies, and the performance of cooling towers has also been monitored. The purpose is to accurately obtain changes in the performance of cooling towers in real time. However, due to the large water spray area of ​​cooling towers, the performance of cooling tower water spray packing will change with different locations. Areas with large performance degradation can be replaced in advance, while areas with small performance degradation can be used for a period of time before replacement. However, for power plants, it is difficult to determine which area of ​​packing needs to be replaced. Summary of the Invention

[0004] This application provides a method, device, and electronic equipment for monitoring the thermal performance of cooling tower water spraying packing, in order to solve the problems in related technologies such as the inability to monitor the thermal performance of local areas of cooling tower water spraying packing and the difficulty in accurately locating specific areas of performance degradation.

[0005] The first aspect of this application provides a method for monitoring the thermal performance of cooling tower water-spraying packing, comprising the following steps: obtaining first operating parameters of the cooling tower and second operating parameters of a plurality of water-spraying packing micro-units of the cooling tower; calculating the actual cooling number of each water-spraying packing micro-unit based on at least one of the first and second operating parameters, and obtaining a reference cooling number of each water-spraying packing micro-unit; calculating the cooling number attenuation coefficient of each water-spraying packing micro-unit based on the actual cooling number and the reference cooling number, and monitoring the thermal performance of the cooling tower water-spraying packing according to the cooling number attenuation coefficient.

[0006] Optionally, the thermodynamic performance of the cooling tower water spraying packing is monitored based on the cooling number decay coefficient, including: if the cooling number decay coefficient is greater than or equal to a preset threshold, the thermodynamic performance of the corresponding water spraying packing micro-unit is determined to be normal; if the cooling number decay coefficient is less than the preset threshold, the thermodynamic performance of the corresponding water spraying packing micro-unit is determined to be abnormal.

[0007] Optionally, the first operating parameter includes at least one of the following: inlet water temperature, inlet air parameters, circulating water flow rate, and inlet wind speed; the second operating parameter is the outlet air temperature.

[0008] Optionally, the actual cooling number of each water-spraying packing micro-unit is calculated based on at least one of the first operating parameter and the second operating parameter, including: calculating at least one of the inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature of each water-spraying packing micro-unit based on the first operating parameter and the second operating parameter; and calculating the actual cooling number of each water-spraying packing micro-unit based on at least one of the inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature.

[0009] Optionally, before calculating at least one of the inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature of each water-spraying packing micro-unit based on the first and second operating parameters, the method further includes: obtaining the distance between the water-spraying packing micro-unit and the center of the cooling tower, and the flow rate ratio of the water-spraying packing micro-unit; obtaining the area of ​​the water-spraying packing micro-unit and the corresponding dry air density; and calculating at least one of the inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature of each water-spraying packing micro-unit based on multiple of the first operating parameters, the second operating parameters, the distance, the flow rate ratio, the area, and the dry air density.

[0010] Optionally, based on the first operating parameters and the second operating parameters, at least one of the following is calculated for each water-spraying packing micro-unit: inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature. This includes: calculating the inlet air enthalpy of the water-spraying packing micro-unit based on the inlet air parameters; calculating the outlet air enthalpy of the water-spraying packing micro-unit based on the outlet air temperature; calculating the air velocity of the water-spraying packing micro-unit based on the inlet wind speed, distance, and velocity ratio; calculating the dry air mass flow rate corresponding to the water-spraying packing micro-unit based on the air velocity, area, and dry air density; and calculating the outlet water temperature of the water-spraying packing micro-unit based on the inlet water temperature, dry air mass flow rate, circulating water flow rate, area, inlet air enthalpy, and outlet air enthalpy.

[0011] Optionally, the formula for calculating the actual cooling number is: ; in, Let i be the actual cooling number of the i-th water-spraying packing micro-unit. The inlet water temperature of the micro-unit of the water-spraying packing is... The outlet water temperature of the micro-unit of the water-spraying packing is... For the specific heat of water, For the water temperature difference of the micro-units of the water-spraying packing, , The enthalpy of saturated air corresponding to the inlet water temperature, the outlet water temperature, and the average inlet and outlet water temperatures. For the enthalpy of the air entering the tower, For the enthalpy of the air exiting the tower, The average enthalpy of air entering and exiting the tower; The formula for calculating the cooling coefficient decay is: ; in, The cooling coefficient decay factor is... Let i be the actual cooling number of the i-th water-spraying packing micro-unit. For reference cooling capacity.

[0012] Optionally, the formula for calculating the enthalpy of the air entering the tower is: ; in, For the enthalpy of the air entering the tower, The wet-bulb temperature of the air entering the tower. The relative humidity of the air entering the tower, This represents the saturated vapor pressure corresponding to the wet-bulb temperature of the air entering the tower. Atmospheric pressure; The formula for calculating the enthalpy of the air exiting the tower is: ; in, For the enthalpy of the air exiting the tower, The saturated vapor pressure corresponding to the wet-bulb temperature of the air exiting the tower; The formula for calculating air velocity is: ; in, air velocity, The relative velocity between the flow velocity at different measuring points and the average flow velocity. Let i be the flow velocity at the i-th measuring point. The average flow velocity; The formula for calculating the outlet water temperature is: ; in, For the water temperature exiting the tower, Dry air mass flow rate, For the enthalpy of the air exiting the tower, For the enthalpy of the air entering the tower, For the specific heat of water, For circulating water flow rate, For area, The temperature of the water entering the tower.

[0013] A second aspect of this application provides a device for monitoring the thermal performance of cooling tower water-spraying packing, comprising: an acquisition module for acquiring first operating parameters of the cooling tower and second operating parameters of a plurality of water-spraying packing micro-units of the cooling tower; a calculation module for calculating the actual cooling number of each water-spraying packing micro-unit based on at least one of the first operating parameters and the second operating parameters, and acquiring a reference cooling number of each water-spraying packing micro-unit; and a monitoring module for calculating the actual cooling number of each water-spraying packing micro-unit based on at least one of the first operating parameters and the second operating parameters, and acquiring a reference cooling number of each water-spraying packing micro-unit.

[0014] Optionally, the monitoring module is further configured to: determine that the thermal performance of the corresponding water-spraying packing micro-unit is normal if the cooling coefficient decay is greater than or equal to a preset threshold; and determine that the thermal performance of the corresponding water-spraying packing micro-unit is abnormal if the cooling coefficient decay is less than the preset threshold.

[0015] Optionally, the first operating parameter includes at least one of the following: inlet water temperature, inlet air parameters, circulating water flow rate, and inlet wind speed; the second operating parameter is the outlet air temperature.

[0016] Optionally, the monitoring module is further configured to: calculate at least one of the inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature for each water-spraying packing micro-unit based on the first operating parameter and the second operating parameter; and calculate the actual cooling number for each water-spraying packing micro-unit based on at least one of the inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature.

[0017] Optionally, it further includes: a first calculation module, configured to, before calculating at least one of the inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature of each water-spraying packing micro-unit based on the first operating parameters and the second operating parameters, obtain the distance between the water-spraying packing micro-unit and the center of the cooling tower, and the flow rate ratio of the water-spraying packing micro-unit; obtain the area of ​​the water-spraying packing micro-unit and the corresponding dry air density; and calculate at least one of the inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature of each water-spraying packing micro-unit based on multiple of the first operating parameters, the second operating parameters, the distance, the flow rate ratio, the area, and the dry air density.

[0018] Optionally, the first calculation module is further used to: calculate the enthalpy of the inlet air of the water-spraying packing micro-unit based on the inlet air parameters; calculate the enthalpy of the outlet air of the water-spraying packing micro-unit based on the outlet air temperature; calculate the air velocity of the water-spraying packing micro-unit based on the wind speed, distance, and velocity ratio inside the tower; calculate the dry air mass flow rate corresponding to the water-spraying packing micro-unit based on the air velocity, area, and dry air density; and calculate the outlet water temperature of the water-spraying packing micro-unit based on the inlet water temperature, dry air mass flow rate, circulating water flow rate, area, inlet air enthalpy, and outlet air enthalpy.

[0019] Optionally, the formula for calculating the actual cooling number is: ; in, Let i be the actual cooling number of the i-th water-spraying packing micro-unit. The inlet water temperature of the micro-unit of the water-spraying packing is... The outlet water temperature of the micro-unit of the water-spraying packing is... For the specific heat of water, For the water temperature difference of the micro-units of the water-spraying packing, , The enthalpy of saturated air corresponding to the inlet water temperature, the outlet water temperature, and the average inlet and outlet water temperatures. For the enthalpy of the air entering the tower, For the enthalpy of the air exiting the tower, The average enthalpy of air entering and exiting the tower; The formula for calculating the cooling coefficient decay is: ; in, The cooling coefficient decay factor is... Let i be the actual cooling number of the i-th water-spraying packing micro-unit. For reference cooling capacity.

[0020] Optionally, the formula for calculating the enthalpy of the air entering the tower is: ; in, For the enthalpy of the air entering the tower, The wet-bulb temperature of the air entering the tower. The relative humidity of the air entering the tower, This represents the saturated vapor pressure corresponding to the wet-bulb temperature of the air entering the tower. Atmospheric pressure; The formula for calculating the enthalpy of the air exiting the tower is: ; in, For the enthalpy of the air exiting the tower, The saturated vapor pressure corresponding to the wet-bulb temperature of the air exiting the tower; The formula for calculating air velocity is: ; in, air velocity, The relative velocity between the flow velocity at different measuring points and the average flow velocity. Let i be the flow velocity at the i-th measuring point. The average flow velocity; The formula for calculating the outlet water temperature is: ; in, For the water temperature exiting the tower, Dry air mass flow rate, For the enthalpy of the air exiting the tower, For the enthalpy of the air entering the tower, For the specific heat of water, For circulating water flow rate, For area, The temperature of the water entering the tower.

[0021] A third aspect of this application provides an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor. The processor executes the program to perform the cooling tower water spray packing thermal performance monitoring method as described above.

[0022] The fourth aspect of this application provides a computer-readable storage medium having a computer program or instructions stored thereon, which is executed by a processor to perform the cooling tower water spray packing thermal performance monitoring method as described above.

[0023] The fifth aspect of this application provides a computer program product, including a computer program or instructions, which, when executed, implement the method for monitoring the thermal performance of cooling tower water spray packing as described in the above embodiments.

[0024] Therefore, this application has at least the following beneficial effects: This application embodiment divides the cooling tower into multiple micro-units of water-spraying packing. It obtains first operating parameters corresponding to the entire cooling tower and second operating parameters for each micro-unit. Based on these parameters, it calculates the actual cooling capacity of each micro-unit and then calculates a cooling capacity attenuation coefficient for each micro-unit using both the actual and reference cooling capacity. By monitoring the thermal performance of the cooling tower's water-spraying packing based on this attenuation coefficient, it achieves monitoring of the thermal performance of multiple areas of the cooling tower, accurately locating specific areas of thermal performance attenuation. This enables localized maintenance of the cooling tower's water-spraying packing, eliminating the need for bulk replacement and reducing maintenance costs. Therefore, it solves the technical problems in related technologies, such as the inability to monitor the thermal performance of localized areas of the cooling tower's water-spraying packing and the difficulty in accurately locating specific areas of performance attenuation.

[0025] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0026] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a flowchart of a method for monitoring the thermal performance of cooling tower water spray packing provided in an embodiment of this application; Figure 2 This is a schematic diagram of the arrangement of air temperature measuring points at the outlet of the cooling tower according to an embodiment of this application; Figure 3 This is a cross-sectional schematic diagram of the cooling tower measuring point arrangement according to an embodiment of this application; Figure 4 This is a schematic diagram of the arrangement of flow velocity measuring points inside a cooling tower according to an embodiment of this application; Figure 5 This is a schematic diagram of the flow velocity distribution within the cooling tower in the radial direction according to an embodiment of this application; Figure 6 This is a flowchart illustrating the specific execution of the method for monitoring the thermal performance of cooling tower water spray packing provided in the embodiments of this application. Figure 7 This is an example diagram of a cooling tower water spray packing thermal performance monitoring device provided according to an embodiment of this application; Figure 8 This is a schematic diagram of the structure of an electronic device provided according to an embodiment of this application. Detailed Implementation

[0027] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0028] The following description, with reference to the accompanying drawings, outlines a method, apparatus, equipment, and medium for monitoring the thermal performance of cooling tower water-spraying packing according to embodiments of this application. Addressing the problem mentioned in the background art that the thermal performance of different areas of a cooling tower cannot be determined, thus making it impossible to identify which area of ​​the packing needs replacement, this application provides a method for monitoring the thermal performance of cooling tower water-spraying packing. In this method, the cooling tower can be divided into multiple water-spraying packing micro-units. First operating parameters corresponding to the entire cooling tower and second operating parameters of the multiple water-spraying packing micro-units are obtained. The actual cooling number of each water-spraying packing micro-unit is calculated based on the first and second operating parameters. Then, the cooling number attenuation coefficient of each water-spraying packing micro-unit is calculated based on the actual cooling number and a reference cooling number. The thermal performance of the cooling tower water-spraying packing is monitored based on the cooling number attenuation coefficient, thereby achieving monitoring of the thermal performance of multiple areas of the cooling tower, accurately locating specific locations of thermal performance attenuation, and enabling localized maintenance of the cooling tower water-spraying packing without the need for bulk replacement, thus reducing maintenance costs. This solves the problems in related technologies, such as the inability to monitor the thermal performance of localized areas of cooling tower water-spraying packing and the difficulty in accurately locating specific areas of performance attenuation.

[0029] Specifically, Figure 1 This is a flowchart illustrating a method for monitoring the thermal performance of cooling tower water spray packing provided in an embodiment of this application.

[0030] like Figure 1 As shown, the method for monitoring the thermal performance of the cooling tower water spray packing includes the following steps: In step S101, the first operating parameters of the cooling tower and the second operating parameters of the multiple water-spraying packing micro-units of the cooling tower are obtained.

[0031] The first operating parameter is the overall parameter of the cooling tower, including at least one of the following: inlet water temperature, inlet air parameters, circulating water flow rate, and inlet wind speed. The inlet air parameters include inlet air dry-bulb temperature, inlet air wet-bulb temperature, atmospheric pressure, and inlet air relative humidity. The second operating parameter is the outlet air temperature.

[0032] The multiple micro-units of the water-spraying packing in this embodiment are obtained by dividing the water-spraying packing of the cooling tower into square units, with each micro-unit representing a region, for example... Figure 2 As shown, each square represents a unit, and the side length of each square is no greater than 1m.

[0033] It should be noted that before implementing the solution in this application, measuring points need to be set up on the cooling tower, and corresponding monitoring equipment needs to be installed at the measuring points. The arrangement of the measuring points on the cooling tower is as follows: Figure 3 As shown, the corresponding operating parameters are obtained. The monitoring equipment and its corresponding operating parameters are as follows: 1. Temperature outside the tower.

[0034] A temperature measurement point for the outlet air is set above the cooling tower water collector. The testing equipment uses a grating thermometer or a platinum resistance thermometer with an accuracy of ±0.2℃. The measurement points are arranged according to the micro-units of the water spray packing. Figure 2 As shown, each water-spraying packing micro-unit has a temperature measuring point.

[0035] 2. Inlet water temperature.

[0036] The water temperature measuring point at the inlet is located in the central vertical shaft, and a platinum resistance thermometer is used with an accuracy of ±0.2℃.

[0037] 3. Air parameters entering the tower.

[0038] The air parameter measuring points are located at the air inlet of the cooling tower, 1m away from the edge of the water collection pool and 1.5m high. The testing equipment is a weather station with a temperature accuracy of ±0.2℃ and an atmospheric pressure gauge accuracy of ±0.1hPa.

[0039] 4. Circulating water flow rate.

[0040] The circulating water flow rate test uses an ultrasonic flow meter with a test accuracy of 1%. It is fixed on a straight pipe and must meet the requirement that the first 10D (D is the diameter of the main pipe) and the last 5D are straight pipes.

[0041] 5. Wind speed measurement inside the tower.

[0042] An impeller anemometer with an accuracy of ±0.1 m / s was used. Before fixing the equipment, the air velocity Vi at different measuring points Ri above the water collector was measured along the radial direction. The average velocity Va along this radial direction was then calculated. Finally, the ratio of the velocity at different distances Ri from the center of the tower to the average velocity was obtained. (i.e., relative velocity), obtain a typical location point with the same average velocity, and place an anemometer 1.5m above the water collector at this point, such as... Figure 4 As shown, under conditions without natural wind, since the flow field of the cooling tower is axisymmetric, the velocity distribution will not change. Therefore, it is only necessary to measure the velocity at a typical location of the average velocity and compare the velocity at different locations at the center of the tower with the average velocity. This allows us to obtain the flow velocity at different locations, such as Figure 5 As shown.

[0043] Specifically, the relative flow rate is obtained. The process is as follows: (1) Select a typical radius on the cross section above the cooling tower desiccant, test the air velocity (i.e. wind speed) Vi at different points on this radius, and calculate the average velocity Va. Plot a curve with the relative radius Ri / R as the abscissa, where Ri is the distance from the i-th measuring point to the center of the tower, and R is the radius of the cooling tower cross section of the desiccant; and the relative velocity Vi / Va as the ordinate. Figure 5As shown; (2) Select a point with the same average flow velocity as the typical location point, and set up an anemometer at the point to test the flow velocity Va; (3) According to Figure 5 The flow velocity Va at the typical measured location can be used as follows: Calculate the flow velocity at different locations.

[0044] In step S102, based on at least one of the first operating parameters and the second operating parameters, the actual cooling number of each water-spraying packing micro-unit is calculated, and the reference cooling number of each water-spraying packing micro-unit is obtained.

[0045] The actual cooling number is calculated based on measured parameters; the reference cooling number is the laboratory value of the new water spraying filler / healthy cooling number at the symmetrical position.

[0046] It is understood that, based on at least one of the first operating parameters and the second operating parameters, the actual cooling number of each water-spraying packing micro-unit can be calculated, and the reference cooling number of each water-spraying packing micro-unit can be obtained, so as to subsequently calculate the cooling number attenuation coefficient of each water-spraying packing micro-unit.

[0047] In one embodiment of this application, calculating the actual cooling number of each water-spraying packing micro-unit based on at least one of a first operating parameter and a second operating parameter includes: calculating at least one of the inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature of each water-spraying packing micro-unit based on the first operating parameter and the second operating parameter; and calculating the actual cooling number of each water-spraying packing micro-unit based on at least one of the inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature.

[0048] Among them, air enthalpy is the total energy contained in air.

[0049] It is understood that, based on the first operating parameter and the second operating parameter, at least one of the following can be calculated for each water-spraying packing micro-unit: inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature. Then, based on at least one of the following, the actual cooling number of each water-spraying packing micro-unit can be calculated.

[0050] In one embodiment of this application, the formula for calculating the actual cooling number is: ; in, Let i be the actual cooling number of the i-th water-spraying packing micro-unit. The inlet water temperature of the micro-unit of the water-spraying packing is... The outlet water temperature of the micro-unit of the water-spraying packing is... For the specific heat of water, For the water temperature difference of the micro-units of the water-spraying packing, , The enthalpy of saturated air corresponding to the inlet water temperature, the outlet water temperature, and the average inlet and outlet water temperatures. For the enthalpy of the air entering the tower, For the enthalpy of the air exiting the tower, The average enthalpy of air entering and exiting the tower. include , i includes , , .

[0051] In one embodiment of this application, before calculating at least one of the inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature of each water-spraying packing micro-unit based on the first operating parameter and the second operating parameter, the method further includes: obtaining the distance between the water-spraying packing micro-unit and the center of the cooling tower, and the flow rate ratio of the water-spraying packing micro-unit; obtaining the area of ​​the water-spraying packing micro-unit and the corresponding dry air density; and calculating at least one of the inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature of each water-spraying packing micro-unit based on multiple of the first operating parameter, the second operating parameter, the distance, the flow rate ratio, the area, and the dry air density.

[0052] Among them, the flow rate ratio is the ratio of the flow rate at the location of the micro-unit of the water-spraying packing to the average flow rate within the radius of the cooling tower; the dry air density is the density of dry air in humid air, which can be calculated from temperature and pressure.

[0053] It is understood that the embodiments of this application can obtain the distance between the water-spraying packing micro-unit and the center of the cooling tower, as well as the flow rate ratio of the water-spraying packing micro-unit, obtain the area of ​​the water-spraying packing micro-unit and the corresponding dry air density, and calculate at least one of the following for each water-spraying packing micro-unit: inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature.

[0054] In one embodiment of this application, calculating at least one of the following for each water-spraying packing micro-unit—the inlet air enthalpy, the outlet air enthalpy, the air velocity, and the outlet water temperature—based on a first operating parameter and a second operating parameter includes: calculating the inlet air enthalpy of the water-spraying packing micro-unit based on the inlet air parameters; calculating the outlet air enthalpy of the water-spraying packing micro-unit based on the outlet air temperature; calculating the air velocity of the water-spraying packing micro-unit based on the inlet wind speed, distance, and velocity ratio; calculating the dry air mass flow rate corresponding to the water-spraying packing micro-unit based on the air velocity, area, and dry air density; and calculating the outlet water temperature of the water-spraying packing micro-unit based on the inlet water temperature, dry air mass flow rate, circulating water flow rate, area, inlet air enthalpy, and outlet air enthalpy.

[0055] Here, dry air mass flow rate is the mass of dry air passing through the micro-unit per unit time.

[0056] Specifically, the calculations for the inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature in this embodiment are as follows: The formula for calculating the enthalpy of the air entering the tower is: ; in, For the enthalpy of the air entering the tower, The wet-bulb temperature of the air entering the tower. The relative humidity of the air entering the tower, This represents the saturated vapor pressure corresponding to the wet-bulb temperature of the air entering the tower. Atmospheric pressure; The formula for calculating the enthalpy of the air exiting the tower is: ; in, For the enthalpy of the air exiting the tower, This represents the saturated vapor pressure corresponding to the wet-bulb temperature of the air exiting the tower. Atmospheric pressure; The formula for calculating air velocity is: ; in, air velocity, The relative velocity between the flow velocity at different measuring points and the average flow velocity. Let i be the flow velocity at the i-th measuring point. The average flow velocity; The formula for calculating the outlet water temperature is: ; in, For the water temperature exiting the tower, Dry air mass flow rate, For the enthalpy of the air exiting the tower, For the enthalpy of the air entering the tower, For the specific heat of water, For circulating water flow rate, For area, The temperature of the water entering the tower.

[0057] In step S103, based on the actual cooling number and the reference cooling number, the cooling number decay coefficient of each water-spraying packing micro-unit is calculated, and the thermodynamic performance of the cooling tower water-spraying packing is monitored according to the cooling number decay coefficient.

[0058] Among them, the cooling number decay coefficient is an index used to measure the decay of the thermal performance of the water-spraying packing; each micro-unit of the water-spraying packing corresponds to a local area.

[0059] It is understood that the embodiments of this application can obtain the first operating parameters corresponding to the entire cooling tower and the second operating parameters of multiple water-spraying packing micro-units, and calculate the actual cooling number of each water-spraying packing micro-unit based on the first and second operating parameters. Then, the cooling number attenuation coefficient of each water-spraying packing micro-unit is calculated based on the actual cooling number and the reference cooling number. The thermal performance of multiple areas of the cooling tower water-spraying packing is monitored based on the cooling number attenuation coefficient, thereby realizing the monitoring of the thermal performance of multiple areas of the cooling tower, determining the specific location of thermal performance attenuation, and thus realizing the local maintenance of the cooling tower water-spraying packing.

[0060] In one embodiment of this application, monitoring the thermodynamic performance of cooling tower water-spraying packing based on the cooling number decay coefficient includes: if the cooling number decay coefficient is greater than or equal to a preset threshold, then the thermodynamic performance of the corresponding water-spraying packing micro-unit is determined to be normal; if the cooling number decay coefficient is less than the preset threshold, then the thermodynamic performance of the corresponding water-spraying packing micro-unit is determined to be abnormal.

[0061] The preset threshold can be set according to specific circumstances, and there are no specific limitations on it. For example, it can be set to 0.9.

[0062] It is understood that in the embodiments of this application, when the cooling coefficient decay coefficient is greater than or equal to a preset threshold, the thermal performance of the corresponding water-spraying packing micro-unit is determined to be abnormal; otherwise, the thermal performance of the corresponding water-spraying packing micro-unit is determined to be abnormal, i.e., thermal performance decay.

[0063] In one embodiment of this application, the formula for calculating the cooling coefficient decay factor is: ; in, The cooling coefficient decay factor is... Let i be the actual cooling number of the i-th water-spraying packing micro-unit. For reference cooling capacity.

[0064] In summary, the process of calculating the cooling number of different water-spraying packing micro-units and determining the water-spraying packing micro-units (hereinafter referred to as micro-units) with declining thermodynamic performance in this application embodiment is as follows: 1. Calculate the enthalpy of the air entering the tower in the micro-unit.

[0065] Calculate saturated vapor pressure at different temperatures The formula is: ; Where T is the Kelvin temperature, T = 273.15 + t, and t is the air temperature or water temperature. Let T be the saturated vapor pressure corresponding to temperature T.

[0066] The enthalpy of the air entering the tower is: ; in, For the enthalpy of the air entering the tower, The wet-bulb temperature of the air entering the tower. The relative humidity of the air entering the tower, The saturated vapor pressure is the temperature of the wet-bulb air entering the tower, calculated based on the formula for saturated vapor pressure mentioned above. Atmospheric pressure; 2. Calculate the enthalpy of the air exiting the tower from the micro-unit.

[0067] ; in, For the enthalpy of the air exiting the tower, The saturated vapor pressure is the temperature of the air exiting the tower at the wet-bulb temperature. This is calculated based on the formula for saturated vapor pressure mentioned above. This refers to the dry-bulb temperature of the air exiting the tower (i.e., the air temperature exiting the tower). The wet-bulb temperature of the air exiting the tower. = , Atmospheric pressure.

[0068] 3. Calculate the air velocity in the micro-unit.

[0069] Based on the measured flow velocity Va at typical locations and the distance LC from the center of the tower to the micro-unit, calculate LC / R, according to... Figure 5 The flow rate ratio Vi / Va corresponding to the micro-unit is obtained.

[0070] ; in, The airflow velocity of the micro-unit. is the relative velocity, which is the ratio of the velocity at different measuring points to the average velocity. The average flow velocity is denoted as .

[0071] 4. Calculate the water temperature exiting the micro-unit.

[0072] Water temperature exiting the tower: ; in, For the water temperature exiting the tower, Dry air mass flow rate, For the enthalpy of the air exiting the tower, For the enthalpy of the air entering the tower, For the specific heat of water, For circulating water flow rate, For area, The temperature of the water entering the tower.

[0073] in, , The density of dry air, This refers to the air velocity.

[0074] ; in, The density of dry air, i.e., 1m 3 The mass of dry air in moist air, The gas constant for dry air is 287.14 J / (kg·K), and the air exiting the tower is saturated air. , , For area, This refers to the dry air mass flow rate.

[0075] 5. Calculate the cooling number.

[0076] ; in, Let i be the actual cooling number of the i-th water-spraying packing micro-unit. The inlet water temperature of the micro-unit of the water-spraying packing is... The outlet water temperature of the micro-unit of the water-spraying packing is... For the specific heat of water, For the water temperature difference of the micro-units of the water-spraying packing, , The enthalpy of saturated air corresponding to the inlet water temperature, the outlet water temperature, and the average inlet and outlet water temperatures. For the enthalpy of the air entering the tower, For the enthalpy of the air exiting the tower, This is the average enthalpy of air entering and exiting the tower.

[0077] Based on the inlet and outlet water temperatures and inlet and outlet air enthalpies of the micro-units mentioned in 1-4 above, the cooling coefficient can be obtained by integrating the above formula.

[0078] 6. Comparison of cooling number with laboratory cooling number / cooling number at symmetrical location.

[0079] The laboratory cooling number is the cooling characteristic data of a new water-spraying packing material measured in the laboratory, and its expression is as follows: ; Where A and m are experimental coefficients, The air-to-water ratio, , Dry air mass flow rate, This refers to the circulating water flow rate.

[0080] The formula for calculating the cooling coefficient decay is as follows: ; in, The cooling coefficient decay factor is... Let i be the actual cooling number of the i-th water-spraying packing micro-unit. This represents the laboratory cooling number / the cooling number at symmetrical locations.

[0081] 7. Determine the water-spraying packing unit with declining thermal performance.

[0082] The local attenuation of the cooling tower water spray packing can be obtained based on the cooling number attenuation coefficient at different points. When the cooling number attenuation coefficient is less than 0.9, maintenance or replacement should be considered. The attenuation micro-unit should be determined based on the coordinate position of point i. The water spray packing micro-unit should be maintained or replaced during the shutdown maintenance.

[0083] Specifically, the overall implementation process of the cooling tower water spray packing thermal performance monitoring method of this application is as follows: Figure 6 As shown, this is achieved by adding parameters to the cooling tower inlet air (including dry-bulb temperature, relative humidity, and atmospheric pressure), outlet air temperature, circulating water flow rate, and wind speed at typical locations within the tower. The cooling tower's cooling data number is obtained in real-time by monitoring these parameters, and the performance degradation of the cooling tower is evaluated based on changes in the cooling data number. Specifically, this includes: 1. Install a monitoring device for the cooling number of the water spraying packing unit inside the cooling tower.

[0084] 2. Obtain the cooling capacity of different water spraying packing units.

[0085] 3. Comparison of cooling number with laboratory cooling number / cooling number at symmetrical location.

[0086] 4. Determine the water spray packing unit with cooling capacity decay.

[0087] According to the cooling tower water-spraying packing thermal performance monitoring method proposed in the embodiments of this application, the cooling tower can be divided into multiple water-spraying packing micro-units. The first operating parameters corresponding to the cooling tower as a whole and the second operating parameters of the multiple water-spraying packing micro-units are obtained. The actual cooling number of each water-spraying packing micro-unit is calculated based on the first and second operating parameters. Then, the cooling number attenuation coefficient of each water-spraying packing micro-unit is calculated based on the actual cooling number and the reference cooling number. The thermal performance of the cooling tower water-spraying packing is monitored based on the cooling number attenuation coefficient, thereby realizing the monitoring of the thermal performance of multiple areas of the cooling tower, accurately locating the specific thermal performance attenuation location, and thus realizing local maintenance of the cooling tower water-spraying packing without the need for batch replacement and maintenance, reducing maintenance costs.

[0088] Next, referring to the accompanying drawings, a device for monitoring the thermal performance of cooling tower water spray packing according to an embodiment of this application is described.

[0089] Figure 7 This is a block diagram of a cooling tower water spray packing thermal performance monitoring device according to an embodiment of this application.

[0090] like Figure 7As shown, the cooling tower water spray packing thermal performance monitoring device 10 includes: an acquisition module 100, a calculation module 200, and a monitoring module 300.

[0091] The acquisition module 100 is used to acquire the first operating parameters of the cooling tower and the second operating parameters of the multiple water-spraying packing micro-units of the cooling tower; the calculation module 200 is used to calculate the actual cooling number of each water-spraying packing micro-unit based on at least one of the first operating parameters and the second operating parameters, and to acquire the reference cooling number of each water-spraying packing micro-unit; the monitoring module 300 is used to calculate the actual cooling number of each water-spraying packing micro-unit based on at least one of the first operating parameters and the second operating parameters, and to acquire the reference cooling number of each water-spraying packing micro-unit.

[0092] In one embodiment of this application, the monitoring module 300 is further configured to: determine that the thermal performance of the corresponding water-spraying packing micro-unit is normal if the cooling coefficient decay is greater than or equal to a preset threshold; and determine that the thermal performance of the corresponding water-spraying packing micro-unit is abnormal if the cooling coefficient decay is less than the preset threshold.

[0093] In one embodiment of this application, the first operating parameter includes at least one of the following: inlet water temperature, inlet air parameters, circulating water flow rate, and inlet wind speed; and the second operating parameter is the outlet air temperature.

[0094] In one embodiment of this application, the monitoring module 300 is further configured to: calculate at least one of the inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature of each water-spraying packing micro-unit based on the first operating parameter and the second operating parameter; and calculate the actual cooling number of each water-spraying packing micro-unit based on at least one of the inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature.

[0095] In one embodiment of this application, the cooling tower water spray packing thermal performance monitoring device 10 further includes: a first calculation module.

[0096] The first calculation module is used to obtain the distance between the water-spraying packing micro-unit and the center of the cooling tower, and the flow rate ratio of the water-spraying packing micro-unit, before calculating at least one of the inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature of each water-spraying packing micro-unit based on the first operating parameters and the second operating parameters; obtain the area of ​​the water-spraying packing micro-unit and the corresponding dry air density; and calculate at least one of the inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature of each water-spraying packing micro-unit based on multiple of the first operating parameters, the second operating parameters, the distance, the flow rate ratio, the area, and the dry air density.

[0097] In one embodiment of this application, the first calculation module is further configured to: calculate the enthalpy of the inlet air of the water-spraying packing micro-unit based on the inlet air parameters; calculate the enthalpy of the outlet air of the water-spraying packing micro-unit based on the outlet air temperature; calculate the air velocity of the water-spraying packing micro-unit based on the wind speed, distance, and velocity ratio inside the tower; calculate the dry air mass flow rate corresponding to the water-spraying packing micro-unit based on the air velocity, area, and dry air density; and calculate the outlet water temperature of the water-spraying packing micro-unit based on the inlet water temperature, dry air mass flow rate, circulating water flow rate, area, inlet air enthalpy, and outlet air enthalpy.

[0098] In one embodiment of this application, the formula for calculating the actual cooling number is: ; in, Let i be the actual cooling number of the i-th water-spraying packing micro-unit. The inlet water temperature of the micro-unit of the water-spraying packing is... The outlet water temperature of the micro-unit of the water-spraying packing is... For the specific heat of water, For the water temperature difference of the micro-units of the water-spraying packing, , The enthalpy of saturated air corresponding to the inlet water temperature, the outlet water temperature, and the average inlet and outlet water temperatures. For the enthalpy of the air entering the tower, For the enthalpy of the air exiting the tower, The average enthalpy of air entering and exiting the tower; The formula for calculating the cooling coefficient decay is: ; in, The cooling coefficient decay factor is... Let i be the actual cooling number of the i-th water-spraying packing micro-unit. For reference cooling capacity.

[0099] In one embodiment of this application, the formula for calculating the enthalpy of the air entering the tower is: ; in, For the enthalpy of the air entering the tower, The wet-bulb temperature of the air entering the tower. The relative humidity of the air entering the tower, This represents the saturated vapor pressure corresponding to the wet-bulb temperature of the air entering the tower. Atmospheric pressure; The formula for calculating the enthalpy of the air exiting the tower is: ; in, For the enthalpy of the air exiting the tower, The saturated vapor pressure corresponding to the wet-bulb temperature of the air exiting the tower; The formula for calculating air velocity is: ; in, air velocity, The relative velocity between the flow velocity at different measuring points and the average flow velocity. Let i be the flow velocity at the i-th measuring point. The average flow velocity; The formula for calculating the outlet water temperature is: ; in, For the water temperature exiting the tower, Dry air mass flow rate, For the enthalpy of the air exiting the tower, For the enthalpy of the air entering the tower, For the specific heat of water, For circulating water flow rate, For area, The temperature of the water entering the tower.

[0100] It should be noted that the explanation of the above-mentioned embodiment of the method for monitoring the thermal performance of cooling tower water spraying packing also applies to the device for monitoring the thermal performance of cooling tower water spraying packing in this embodiment, and will not be repeated here.

[0101] According to the cooling tower water-spraying packing thermal performance monitoring device proposed in the embodiments of this application, the cooling tower can be divided into multiple water-spraying packing micro-units. The device obtains the first operating parameters corresponding to the cooling tower as a whole and the second operating parameters of the multiple water-spraying packing micro-units. Based on the first and second operating parameters, the actual cooling number of each water-spraying packing micro-unit is calculated. Then, based on the actual cooling number and the reference cooling number, the cooling number attenuation coefficient of each water-spraying packing micro-unit is calculated. The thermal performance of the cooling tower water-spraying packing is monitored based on the cooling number attenuation coefficient. This enables the monitoring of the thermal performance of multiple areas of the cooling tower, accurately locates the specific thermal performance attenuation location, and thus enables local maintenance of the cooling tower water-spraying packing without the need for batch replacement and maintenance, reducing maintenance costs.

[0102] Figure 8 A schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device may include: The memory 801, the processor 802, and the computer program stored on the memory 801 and capable of running on the processor 802.

[0103] When the processor 802 executes the program, it implements the method for monitoring the thermal performance of cooling tower water spray packing provided in the above embodiments.

[0104] Furthermore, the vehicle also includes: Communication interface 803 is used for communication between memory 801 and processor 802.

[0105] The memory 801 is used to store computer programs that can run on the processor 802.

[0106] The memory 801 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk storage device.

[0107] If the memory 801, processor 802, and communication interface 803 are implemented independently, then the communication interface 803, memory 801, and processor 802 can be interconnected via a bus to complete communication between them. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized into address buses, data buses, control buses, etc. For ease of representation, Figure 8 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0108] Optionally, in a specific implementation, if the memory 801, processor 802, and communication interface 803 are integrated on a single chip, then the memory 801, processor 802, and communication interface 803 can communicate with each other through an internal interface.

[0109] The processor 802 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application.

[0110] This application also provides a computer-readable storage medium storing a computer program or instructions thereon, which, when executed by a processor, implements the above-described method for monitoring the thermal performance of cooling tower water spray packing.

[0111] This application also provides a computer program product, including a computer program or instructions, which, when executed, implement the above-described method for monitoring the thermal performance of cooling tower water spray packing.

[0112] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0113] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0114] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0115] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or more of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (FPGAs), field-programmable gate arrays (FPGAs), etc.

[0116] Those skilled in the art will understand that all or part of the steps of the methods described in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it includes one or a combination of the steps of the method embodiments.

Claims

1. A method for monitoring the thermal performance of cooling tower water spray packing, characterized in that, Includes the following steps: Obtain the first operating parameters of the cooling tower and the second operating parameters of the multiple water-spraying packing micro-units of the cooling tower; Based on at least one of the first operating parameters and the second operating parameters, calculate the actual cooling number of each water-spraying packing micro-unit and obtain the reference cooling number of each water-spraying packing micro-unit; Based on the actual cooling number and the reference cooling number, the cooling number decay coefficient of each of the water-spraying packing micro-units is calculated, and the thermodynamic performance of the cooling tower water-spraying packing is monitored according to the cooling number decay coefficient.

2. The method for monitoring the thermal performance of cooling tower water spray packing according to claim 1, characterized in that, The monitoring of the thermodynamic performance of the cooling tower water spray packing based on the cooling coefficient decay includes: If the cooling coefficient decay is greater than or equal to a preset threshold, then the thermodynamic performance of the corresponding water-spraying packing micro-unit is determined to be normal. If the cooling coefficient decay is less than the preset threshold, then the corresponding water-spraying packing micro-unit is determined to have abnormal thermodynamic performance.

3. The method for monitoring the thermal performance of cooling tower water spray packing according to claim 1, characterized in that, The first operating parameter includes at least one of the following: inlet water temperature, inlet air parameters, circulating water flow rate, and inlet wind speed; the second operating parameter is the outlet air temperature.

4. The method for monitoring the thermal performance of cooling tower water spray packing according to claim 3, characterized in that, The calculation of the actual cooling number of each water-spraying packing micro-unit based on at least one of the first operating parameters and the second operating parameters includes: Based on the first operating parameters and the second operating parameters, calculate at least one of the following for each of the water-spraying packing micro-units: inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature. The actual cooling number of each water-spraying packing micro-unit is calculated based on at least one of the inlet air enthalpy, the outlet air enthalpy, the air velocity, and the outlet water temperature.

5. The method for monitoring the thermal performance of cooling tower water spray packing according to claim 4, characterized in that, Before calculating at least one of the inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature for each of the water-spraying packing micro-units based on the first and second operating parameters, the method further includes: The distance between the water-spraying packing micro-unit and the center of the cooling tower, as well as the flow velocity ratio of the water-spraying packing micro-unit, are obtained. Obtain the area and corresponding dry air density of the micro-unit of the water spraying filler; Based on multiple of the first operating parameters, the second operating parameters, the distance, the flow rate ratio, the area, and the dry air density, at least one of the following for each of the water-spraying packing micro-units is calculated: inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature.

6. The method for monitoring the thermal performance of cooling tower water spray packing according to claim 5, characterized in that, The step of calculating at least one of the following for each of the water-spraying packing micro-units—inlet air enthalpy, outlet air enthalpy, air velocity, and outlet water temperature—based on the first and second operating parameters includes: Based on the inlet air parameters, calculate the inlet air enthalpy of the water-spraying packing micro-unit; Calculate the enthalpy of the outlet air of the water-spraying packing micro-unit based on the outlet air temperature; Based on the wind speed inside the tower, the distance, and the velocity ratio, the air velocity of the water-spraying packing micro-unit is calculated; The dry air mass flow rate corresponding to the water-spraying packing micro-unit is calculated based on the air velocity, the area, and the dry air density. The outlet water temperature of the water-spraying packing micro-unit is calculated based on the inlet water temperature, the dry air mass flow rate, the circulating water flow rate, the area, the inlet air enthalpy, and the outlet air enthalpy.

7. The method for monitoring the thermal performance of cooling tower water spray packing according to claim 1, characterized in that, The formula for calculating the actual cooling number is: ； in, Let i be the actual cooling number of the i-th water-spraying packing micro-unit. The inlet water temperature of the micro-unit of the water-spraying packing is... The outlet water temperature of the micro-unit of the water-spraying packing is... For the specific heat of water, For the water temperature difference of the micro-units of the water-spraying packing, , The enthalpy of saturated air corresponding to the inlet water temperature, the outlet water temperature, and the average inlet and outlet water temperatures. For the enthalpy of the air entering the tower, For the enthalpy of the air exiting the tower, The average enthalpy of air entering and exiting the tower; The formula for calculating the cooling coefficient decay is: ； in, The cooling coefficient decay factor is... Let i be the actual cooling number of the i-th water-spraying packing micro-unit. For reference cooling capacity.

8. The method for monitoring the thermal performance of cooling tower water spray packing according to claim 4, characterized in that, The formula for calculating the enthalpy of the air entering the tower is: ； in, For the enthalpy of the air entering the tower, The wet-bulb temperature of the air entering the tower. The relative humidity of the air entering the tower, This represents the saturated vapor pressure corresponding to the wet-bulb temperature of the air entering the tower. Atmospheric pressure; The formula for calculating the enthalpy of the air exiting the tower is: ； in, For the enthalpy of the air exiting the tower, This represents the saturated vapor pressure corresponding to the wet-bulb temperature of the air exiting the tower. Atmospheric pressure; The formula for calculating the airflow velocity is: ； in, air velocity, The relative velocity between the flow velocity at different measuring points and the average flow velocity. Let i be the flow velocity at the i-th measuring point. The average flow velocity; The formula for calculating the outlet water temperature is: ； in, For the water temperature exiting the tower, Dry air mass flow rate, For the enthalpy of the air exiting the tower, For the enthalpy of the air entering the tower, For the specific heat of water, For circulating water flow rate, For area, The temperature of the water entering the tower.

9. A device for monitoring the thermal performance of cooling tower water spray packing, characterized in that, include: The acquisition module is used to acquire the first operating parameters of the cooling tower and the second operating parameters of the multiple water-spraying packing micro-units of the cooling tower; The calculation module is used to calculate the actual cooling number of each water-spraying packing micro-unit based on at least one of the first operating parameters and the second operating parameters, and to obtain the reference cooling number of each water-spraying packing micro-unit. The monitoring module is used to calculate the actual cooling number of each water-spraying packing micro-unit based on at least one of the first operating parameters and the second operating parameters, and to obtain the reference cooling number of each water-spraying packing micro-unit.

10. An electronic device, characterized in that, include: The method includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the method for monitoring the thermal performance of cooling tower water spray packing as described in any one of claims 1-8.

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