Cooling triangle water distribution uniformity measurement system and method, electronic equipment and storage medium

Abstract

The invention provides a cooling triangle water distribution uniformity measurement system and method, electronic equipment and a storage medium, and the measurement system comprises a thermometer which is used for testing the air temperature of the outlet tower of a cooling tower, and the water inlet temperature and the water outlet temperature of the cooling triangle; the impeller anemometer is used for testing the flowing speed of air out of the cooling tower; the meteorological station is used for testing tower inlet air parameters of the cooling tower; the data acquisition card is used for carrying out acquisition and signal conversion on test data of the air temperature of out-of-tower air, the water inlet temperature of the cooling triangles, the water outlet temperature of each cooling triangle, the flow velocity of out-of-tower air and the parameters of in-tower air; the industrial personal computer is used for determining a cooling triangle water quantity uniform distribution coefficient of the cooling tower according to the test data of the air temperature of the outlet tower, the water inlet temperature of the cooling triangle, the water outlet temperature of each cooling triangle, the flow velocity of the outlet tower and the air parameters of the inlet tower, and outputting the cooling triangle water quantity uniform distribution coefficient; and data support is provided for uniformity discrimination of water distribution of the indirect air cooling tower.

Description

Technical Field

[0001] The present disclosure relates to the field of cooling towers, and in particular to a cooling triangle water distribution uniformity measurement system, method, electronic equipment and storage medium. Background Art

[0002] Indirect air cooling systems are mostly used in Northwest my country, where winters are cold. Affected by climate change, the core equipment radiator is easily frozen, which seriously affects the safe and economic operation of the power plant. The uniformity of water distribution in the indirect air cooling tower not only affects the antifreeze effect of the indirect air cooling radiator of the power plant, but also directly affects the heat exchange efficiency of the radiator. Achieving uniform water distribution in the indirect air cooling tower has direct safety and economic benefits for the power plant. There is little research on water distribution in power plants in the relevant technical field, mainly because the water distribution of the indirect air cooling tower air cooling radiator is difficult to measure and lacks data support. Summary of the invention

[0003] The present disclosure provides a cooling triangle water distribution uniformity measurement system, method, electronic device and storage medium.

[0004] According to a first aspect of the present disclosure, a cooling triangle water distribution uniformity measurement system is provided, and the detection device measurement system is applied to a cooling tower, and the detection device measurement system comprises: a thermometer, which is used to test the outlet air temperature of the cooling tower, the inlet water temperature and the outlet water temperature of the cooling triangle, wherein the measuring point of the outlet air temperature is arranged at the throat of the cooling tower, the measuring point of the inlet water temperature is arranged on the main pipe of the cooling tower, and the measuring point of the outlet water temperature is arranged on the outlet pipe of each cooling triangle; an impeller anemometer, which is used to test the outlet air velocity of the cooling tower, and the arrangement of the measuring points of the outlet air velocity and the outlet air temperature is the same; a meteorological station, which is used to test the inlet air parameters of the cooling tower, the inlet air temperature measuring point is arranged on the main pipe of the cooling tower, and the outlet water temperature measuring point is arranged on the outlet pipe of each cooling triangle. The measuring points of air parameters are arranged at the air inlet of the cooling tower; a data acquisition card, which is connected to the meteorological station, the thermometer and the impeller anemometer through data lines, and is used to collect and convert the test data of the air temperature at the outlet of the tower, the inlet water temperature of the cooling triangle, the outlet water temperature of each cooling triangle, the air flow rate at the outlet of the tower and the air parameters at the inlet of the tower, and transmit the signals to the industrial computer; and an industrial computer, which is connected to the data acquisition card through a data line, and is used to determine the cooling triangle water distribution coefficient of the cooling tower according to the test data of the air temperature at the outlet of the tower, the inlet water temperature of the cooling triangle, the outlet water temperature of each cooling triangle, the air flow rate at the outlet of the tower and the air parameters at the inlet of the tower, and output the cooling triangle water distribution coefficient.

[0005] In some embodiments, the measuring points of the air temperature out of the tower are evenly arranged on any two mutually perpendicular diameters of the throat section of the cooling tower in the form of equal-area rings.

[0006] According to a second aspect of the present disclosure, a method for measuring the uniformity of water distribution in a cooling triangle is provided, characterized in that the method comprises: obtaining test data of the outlet air temperature of the cooling tower, the inlet water temperature of the cooling triangle, the outlet water temperature of each cooling triangle, the outlet air flow rate, and the inlet air parameters; determining the cooling triangle water distribution coefficient of the cooling tower according to the test data of the outlet air temperature, the inlet water temperature of the cooling triangle, the outlet water temperature of each cooling triangle, the outlet air flow rate, and the inlet air parameters, and outputting the cooling triangle water distribution coefficient.

[0007] In some embodiments, the method also includes: if the cooling triangle water distribution coefficient is less than a preset value, outputting a first prompt message, the first prompt message is used to prompt that the cooling triangle water distribution of the cooling tower is uniform; or, if the cooling triangle water distribution coefficient is greater than or equal to the preset value, outputting a second prompt message, the second prompt message is used to prompt that the cooling triangle water distribution of the cooling tower is uneven.

[0008] In some embodiments, determining the cooling triangle water distribution coefficient of a cooling tower based on test data of the outlet air temperature, the inlet water temperature of the cooling triangle, the outlet water temperature of each cooling triangle, the outlet air flow rate and the inlet air parameters includes: determining the inlet air density and the inlet air humidity of the cooling tower based on the test data of the inlet air parameters; determining the outlet dry air density of the cooling tower based on the test data of the inlet air humidity and the outlet air temperature; determining the average outlet air flow rate of the throat section of the cooling tower based on the test data of the outlet air flow rate; determining the circulating water volume of each cooling triangle based on the measured data of the inlet air density, the outlet dry air density, the average outlet air flow rate, the inlet water temperature of the cooling triangle and the outlet water temperature of each cooling triangle; obtaining the average value of the circulating water volumes of all cooling triangles as the average water volume of the cooling triangles, and determining the cooling triangle water distribution coefficient of the cooling tower based on the circulating water volume of each cooling triangle and the average water volume of the cooling triangles.

[0009] In some embodiments, determining the circulating water volume of each cooling triangle based on the measured data of the inlet air density, the outlet dry air density, the average outlet air flow rate, the inlet water temperature of the cooling triangle, and the outlet water temperature of each cooling triangle includes: determining the inlet air enthalpy based on the test data of the inlet air parameters and the inlet air humidity, and determining the outlet air enthalpy based on the test data of the outlet air temperature and the inlet air humidity; determining the product of the outlet dry air density, the average outlet air flow rate, and the cross-sectional area of ​​the tower throat as the dry air mass flow rate; determining the cooling triangle heat exchange amount based on the dry air mass flow rate, the inlet air enthalpy, and the outlet air enthalpy, and dividing the cooling triangle heat exchange amount by the number of cooling triangles to obtain the heat exchange amount of a single cooling triangle; determining the circulating water volume of each cooling triangle based on the measured data of the heat exchange amount of a single cooling triangle, the inlet water temperature of the cooling triangle, and the outlet water temperature of each cooling triangle.

[0010] In some embodiments, the test data of the inlet air parameters include the inlet air dry-bulb temperature, inlet air relative humidity and atmospheric pressure at each measuring point, and determining the inlet air density and inlet air moisture content of the cooling tower according to the inlet air parameters includes: calculating the average value of the inlet air dry-bulb temperature at each measuring point to obtain a first temperature, calculating the average value of the inlet air relative humidity at each measuring point to obtain a first humidity; obtaining the Kelvin temperature of the first temperature, and calculating the saturated vapor pressure corresponding to the Kelvin temperature according to the Guillory formula; determining the product of the saturated vapor pressure and the first humidity as the pressure corresponding to the water vapor in the inlet humid air; and determining the inlet air density and the inlet air moisture content according to the pressure corresponding to the water vapor in the inlet humid air, the Kelvin temperature and the atmospheric pressure.

[0011] In some embodiments, the test data of the outlet air temperature includes the outlet air dry-bulb temperature of each measuring point. According to the test data of the inlet air moisture content and the outlet air temperature, determining the outlet dry air density of the cooling tower includes: taking the average of the outlet air dry-bulb temperature of each measuring point to obtain a second temperature; determining the pressure corresponding to the water vapor in the outlet wet air according to the inlet air moisture content and the second temperature; and determining the outlet dry air density according to the pressure corresponding to the water vapor in the outlet wet air and the atmospheric pressure.

[0012] According to a third aspect of the present disclosure, an electronic device is provided, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the cooling triangle water distribution uniformity measurement method of the aforementioned second aspect.

[0013] According to a fourth aspect of the present disclosure, a non-transitory computer-readable storage medium storing computer instructions is provided, wherein the computer instructions are used to enable a computer to execute the cooling triangle water distribution uniformity measurement method of the aforementioned second aspect.

[0014] According to a fifth aspect of the present disclosure, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the cooling triangle water distribution uniformity measurement method as described in the second aspect above.

[0015] According to a sixth aspect of the present disclosure, a cooling tower is provided, comprising the cooling triangle water distribution uniformity measurement system as described in the first aspect or the electronic device as described in the third aspect.

[0016] According to an embodiment of the present disclosure, a cooling triangle water distribution uniformity measurement system and method are proposed. The measurement system is applied to a cooling tower. The measurement system includes a thermometer, which is used to test the outlet air temperature of the cooling tower, the inlet water temperature and the outlet water temperature of the cooling triangle, wherein the measuring point of the outlet air temperature is arranged at the throat of the cooling tower, the measuring point of the inlet water temperature is arranged on the main pipe of the cooling tower, and the outlet water temperature is arranged on the outlet pipe of each cooling triangle; an impeller anemometer, which is used to test the outlet air flow rate of the cooling tower, and the arrangement of the measuring points of the outlet air flow rate is the same as that of the measuring points of the outlet air temperature; a meteorological station, which is used to test the inlet air parameters of the cooling tower, and the measuring points of the inlet air parameters are arranged at the air inlet of the cooling tower; a data acquisition card, which measures the outlet air temperature through data The lines are respectively connected to the meteorological station, the thermometer and the impeller anemometer, the data acquisition card is used to collect and convert the test data of the air temperature at the outlet of the tower, the water inlet temperature of the cooling triangle, the water outlet temperature of each cooling triangle, the air flow rate at the outlet of the tower and the air parameters at the inlet of the tower, and transmit the signals to the industrial computer; and the industrial computer, the industrial computer is connected to the data acquisition card through the data line, the industrial computer is used to determine the cooling triangle water distribution coefficient of the cooling tower according to the test data of the air temperature at the outlet of the tower, the water inlet temperature of the cooling triangle, the water outlet temperature of each cooling triangle, the air flow rate at the outlet of the tower and the air parameters at the inlet of the tower, and output the cooling triangle water distribution coefficient. The system and method have a simple structure and are easy to implement, can accurately measure the cooling triangle water distribution coefficient, and provide data support for the uniformity judgment of water distribution of the indirect air cooling tower.

[0017] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to better understand the present solution and do not constitute a limitation of the present disclosure.

[0019] Figure 1 A schematic diagram of the structure of a cooling triangle water distribution uniformity measurement system 100 provided in an embodiment of the present disclosure;

[0020] Figure 2 A cross-sectional schematic diagram of a cooling triangle water distribution uniformity measurement system 100 provided in an embodiment of the present disclosure arranged in a cooling tower;

[0021] Figure 3 A schematic diagram of the arrangement of measuring points for the air temperature and wind speed at the outlet of the tower provided in an embodiment of the present disclosure;

[0022] Figure 4 A schematic diagram of the arrangement of measuring points for tower air parameters provided in an embodiment of the present disclosure;

[0023] Figure 5 A schematic flow chart of a method for measuring uniformity of water distribution in a cooling triangle provided in an embodiment of the present disclosure;

[0024] Figure 6 A schematic flow chart of another cooling triangle water distribution uniformity measurement method provided by an embodiment of the present disclosure;

[0025] Figure 7 A schematic block diagram of an example electronic device 400 provided for an embodiment of the present disclosure;

[0026] The cooling triangle water distribution uniformity measurement system 100 includes a thermometer 110, an impeller anemometer 120, a weather station 130, a data acquisition card 140, and an industrial computer 150;

[0027] During the test, the thermometer 110 is arranged at the outlet air temperature and wind speed measuring point 101, the cooling triangle inlet water temperature measuring point 102, and the cooling triangle outlet water temperature measuring point 103; the impeller anemometer 120 is arranged at the outlet air temperature and wind speed measuring point 101; the meteorological station 130 is arranged at the inlet air parameter measuring point 104. DETAILED DESCRIPTION

[0028] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0029] A cooling triangle water distribution uniformity measurement system, method, electronic device, and storage medium according to an embodiment of the present disclosure will be described below with reference to the accompanying drawings.

[0030] Figure 1 The schematic diagram of the structure of a cooling triangle water distribution uniformity measurement system 100 provided in an embodiment of the present disclosure is shown. The measurement system 100 is applied to cooling towers, especially indirect air cooling towers (also called air cooling towers or dry cooling towers), to measure the water distribution of air-cooled radiators of indirect air cooling towers.

[0031] like Figure 1 As shown, the detection device 100 is composed of a thermometer 110, an impeller anemometer 120, a weather station 130, a data acquisition card 140, an industrial computer 150, etc. The thermometer 110, the impeller anemometer 120, and the weather station 130 are respectively connected to the data acquisition card 140 through a data line, and the data acquisition card 140 is connected to the industrial computer 150 through a data line.

[0032] In some embodiments of the present disclosure, the data acquisition card 140 (Data Acquisition Card, referred to as DAQ card) refers to a hardware device used to acquire, process and convert analog signals (such as temperature, humidity, pressure, etc.) into digital signals.

[0033] In some embodiments of the present disclosure, the industrial computer 150 (Industrial PC, IPC for short) is a computer device designed for an industrial environment.

[0034] In an embodiment of the present disclosure, the detection device is applied to a cooling tower. Figure 2 As shown, Figure 2 A cross-sectional schematic diagram of a cooling triangle water distribution uniformity measurement system 100 arranged in a cooling tower is provided.

[0035] In the embodiment of the present disclosure, the thermometer 110 is used to test the air temperature of the cooling tower outlet; the impeller anemometer 120 is used to test the air velocity of the cooling tower outlet; the arrangement of the measuring points of the air velocity of the cooling tower outlet is the same as that of the measuring points of the air temperature of the cooling tower outlet, such as Figure 2 As shown, the outlet air temperature and flow rate measuring point 101 is arranged at the throat of the cooling tower. During the test, the thermometer 110 and the impeller anemometer 120 are arranged according to the outlet air temperature and flow rate measuring point 101.

[0036] It should be noted that the air flow rate at the throat of the cooling tower is uniform and is not easily disturbed by the external wind, so the air temperature at the outlet of the cooling tower can be accurately measured.

[0037] In some embodiments of the present disclosure, the outlet air temperature and flow rate measuring points 101 are evenly arranged on any two mutually perpendicular diameters of the throat section of the cooling tower in an equal-area ring manner.

[0038] In some embodiments of the present disclosure, the number of outlet air temperature and flow rate measuring points 101 is not less than 10, and the distance between each outlet air temperature and flow rate measuring point 101 and the center of the throat section of the cooling tower is calculated by the following formula (1):

[0039]

[0040] Among them, R n It represents the distance from the center of the throat section of the cooling tower to each measuring point 101, in m; R represents the radius of the throat of the cooling tower, in m; n represents the number of each measuring point 101 from the center of the throat section of the cooling tower; m represents the number of equal surface rings.

[0041] In one embodiment of the present disclosure, Figure 3 As shown, Figure 3The circle shown is the throat section of the cooling tower, which is divided into multiple equal-area rings, and the multiple equal-area rings are divided into multiple equal-area regions by any two perpendicular diameters in the throat section of the cooling tower. The outlet air temperature and flow rate measuring point 101 is arranged at the intersection of the equal-area rings and the two perpendicular diameters.

[0042] In some embodiments of the present disclosure, the resolution of the thermometer 110 is not greater than 0.2° C., and the instrument accuracy should not be lower than level 0.5.

[0043] In some embodiments of the present disclosure, the installation direction of the impeller anemometer 120 is perpendicular to the air flow direction; the resolution of the impeller anemometer 120 is not greater than 0.01 m / s, and the instrument accuracy should not be lower than 0.1 m / s.

[0044] In some embodiments of the present disclosure, the thermometer 110 is also used to test the inlet water temperature and outlet water temperature of the cooling triangle of the cooling tower. The measuring point 102 of the inlet water temperature is arranged on the main pipe of the cooling tower, and the measuring point 103 of the outlet water temperature is arranged on the outlet pipe of each cooling triangle.

[0045] In some embodiments of the present disclosure, since the circulating water volume is transported to each cooling triangle through the main pipe inlet pipe, the inlet water temperature of each cooling triangle is the same. Therefore, the inlet water temperature measuring point 102 of each cooling triangle of the indirect air-cooled tower air-cooled radiator can be set on the circulating water main pipe, wherein the resolution of the thermometer 110 used for testing is not greater than 0.2°C, and the instrument accuracy should not be lower than level 0.5.

[0046] In some embodiments of the present disclosure, the outlet water temperature measuring point 103 of each cooling triangle of the indirect air-cooling tower air-cooling radiator is set on the outlet water pipe of each cooling triangle, and the accuracy of the thermometer is the same as that of the inlet water temperature.

[0047] In some embodiments of the present disclosure, the weather station 130 is used to test the inlet air parameters of the cooling tower, and the measuring point 104 of the inlet air parameters is arranged at the air inlet of the cooling tower.

[0048] In some embodiments of the present disclosure, Figure 2 As shown, the measuring point 104 of the tower air parameters is arranged at the air inlet of the cooling tower close to the edge of the radiator. For example, the measuring point 104 of the tower air parameters is arranged at a horizontal distance of 1m and a height of 1.5m from the air inlet to the edge of the radiator.

[0049] In some embodiments of the present disclosure, the measuring points 104 of the tower air parameters are evenly arranged along the circumference of the air inlet. Figure 4 As shown, Figure 4 The circle shown is the edge section of the cooling tower radiator, and the measuring points 104 of the tower inlet air parameters are 4 points evenly arranged in the circumferential direction of the air inlet.

[0050] In some embodiments of the present disclosure, the inlet air parameters of the cooling tower include the dry bulb temperature, relative humidity, and atmospheric pressure of the inlet air.

[0051] In some embodiments of the present disclosure, the atmospheric pressure is tested by a pressure gauge with a resolution of 0.1 hPa; the dry-bulb temperature is tested by a thermometer with a resolution of no more than 0.2°C and an instrument accuracy of no less than 0.5 levels; and the relative humidity is tested by a hygrometer with an accuracy range of ±2%.

[0052] In some embodiments of the present disclosure, the thermometer 110, the impeller anemometer 120, and the meteorological station 130 are arranged according to corresponding measuring points. When the cooling tower is running, the outlet air temperature of the cooling tower, the inlet water temperature of the cooling triangle, the outlet water temperature of each cooling triangle, the outlet air flow rate, and the inlet air parameters are measured in real time.

[0053] In some embodiments of the present disclosure, the thermometer 110, the impeller anemometer 120, and the meteorological station 130 transmit the collected test data of the tower air temperature, the cooling triangle water inlet temperature, the water outlet temperature of each cooling triangle, the tower air flow rate, and the tower air inlet parameters to the data acquisition card 140 through the data acquisition line, and transmit it to the industrial computer 150 through the data acquisition card 140.

[0054] In some embodiments of the present disclosure, the industrial computer 150 calculates the circulating water volume of each cooling triangle according to a predefined formula, determines the cooling triangle water volume distribution uniformity coefficient of the cooling tower according to the circulating water volume of each cooling triangle, judges whether the cooling triangle water volume distribution uniformity of the cooling tower is good or poor according to the water volume distribution uniformity coefficient, generates prompt information according to the judgment result, outputs the cooling triangle water volume distribution uniformity coefficient and / or prompt information, thereby realizing real-time online measurement and evaluation of the cooling triangle water volume distribution uniformity.

[0055] In summary, according to the cooling triangle water distribution uniformity measurement system provided by the present invention, the measurement system is applied to a cooling tower, and the measurement system includes a thermometer, which is used to test the outlet air temperature of the cooling tower, the inlet water temperature and the outlet water temperature of the cooling triangle, wherein the measuring point of the outlet air temperature is arranged at the throat of the cooling tower, the measuring point of the inlet water temperature is arranged on the main pipe of the cooling tower, and the outlet water temperature is arranged on the outlet pipe of each cooling triangle; an impeller anemometer, the impeller anemometer is used to test the outlet air flow rate of the cooling tower, and the arrangement of the measuring points of the outlet air flow rate is the same as that of the measuring points of the outlet air temperature; a meteorological station, the meteorological station is used to test the inlet air parameters of the cooling tower, and the measuring points of the inlet air parameters are arranged at the air inlet of the cooling tower; a data acquisition card, the data acquisition card is connected to the meteorological station, the thermometer and the impeller anemometer respectively through data lines, and the data acquisition card is used to measure the outlet air temperature , the inlet water temperature of the cooling triangle, the outlet water temperature of each cooling triangle, the outlet air flow rate and the test data of the inlet air parameters are collected and converted into signals, and transmitted to the industrial computer; and the industrial computer, the industrial computer is connected to the data acquisition card through a data line, the industrial computer is used to determine the cooling triangle water distribution coefficient of the cooling tower according to the outlet air temperature, the inlet water temperature of the cooling triangle, the outlet water temperature of each cooling triangle, the outlet air flow rate and the test data of the inlet air parameters, and output the cooling triangle water distribution coefficient. The system and method have a simple structure and are easy to implement, can accurately measure the cooling triangle water distribution coefficient, and provide data support for the uniformity judgment of the water distribution of the indirect air cooling tower. The system and method have a simple structure and are easy to implement, can accurately obtain the water volume of each cooling triangle of the indirect air cooling tower, and calculate the distribution coefficient, which provides data support for the uniformity judgment of the water distribution of the indirect air cooling tower.

[0056] Figure 5 A flow chart of a method for measuring the uniformity of water distribution in a cooling triangle provided in an embodiment of the present disclosure is provided. The method is executed by a processor, such as a processor at the MCU (Microcontroller Unit) level. The method can be used to control the above-mentioned cooling triangle water distribution uniformity measurement system 100 to perform cooling triangle water distribution uniformity measurement.

[0057] like Figure 5 As shown, the method comprises the following steps:

[0058] Step 201, obtaining test data of the cooling tower outlet air temperature, the cooling triangle inlet water temperature, each cooling triangle outlet water temperature, the tower outlet air flow rate, and the tower inlet air parameters.

[0059] In some embodiments, the test data of the cooling tower outlet air temperature, the cooling triangle inlet water temperature, the outlet water temperature of each cooling triangle, the outlet air flow rate and the inlet air parameters are obtained by controlling the test equipment.

[0060] In some embodiments, the test data of the cooling tower's outlet air temperature, the cooling triangle's inlet water temperature, and the outlet water temperature of each cooling triangle are obtained by controlling the thermometer to measure; the test data of the cooling tower's outlet air flow rate is obtained by controlling the impeller anemometer to measure; and the test data of the inlet air parameters are obtained by controlling the meteorological station to measure.

[0061] In some embodiments, the measuring points of the air temperature and wind speed at the outlet of the tower are evenly arranged on any two mutually perpendicular diameters of the throat section of the cooling tower in the form of equal-area rings.

[0062] In some embodiments, there are no less than 10 measuring points for the air temperature and wind speed at the outlet of the tower, that is, there are no less than 10 measurement data for the air temperature and wind speed at the outlet of the tower.

[0063] In some embodiments, the measuring point of the inlet water temperature is arranged on the main pipe of the cooling tower, and the outlet water temperature is arranged on the outlet pipe of each cooling triangle.

[0064] In some embodiments, the measuring points of the inlet air parameters are evenly arranged in the circumferential direction of the cooling tower air inlet, and the number of the measuring points of the inlet air parameters is more than one, for example, the measuring points of the inlet air parameters are 4 points evenly arranged in the circumferential direction of the air inlet.

[0065] In some embodiments, the test data of the outgoing air temperature, outgoing air flow rate and ingoing air parameters are collected and converted into signals through a data acquisition card, and the test data are converted from analog signals to digital signals so that they can be input into an industrial computer for digital calculation and processing.

[0066] Step 202, determine the cooling triangle water distribution coefficient of the cooling tower according to the test data of the outlet air temperature, the inlet water temperature of the cooling triangle, the outlet water temperature of each cooling triangle, the outlet air flow rate and the inlet air parameters, and output the cooling triangle water distribution coefficient.

[0067] In some embodiments, the control industrial computer calculates the circulating water volume of each cooling triangle according to the test data of the outlet air temperature, the inlet water temperature of the cooling triangle, the outlet water temperature of each cooling triangle, the outlet air flow rate and the inlet air parameters according to the predefined calculation logic, and determines the cooling triangle water volume distribution uniformity coefficient of the cooling tower according to the circulating water volume of each cooling triangle.

[0068] In some embodiments, the method also includes: if the cooling triangle water distribution coefficient is less than a preset value, outputting a first prompt message, the first prompt message is used to prompt that the cooling triangle water distribution of the cooling tower is uniform; or, if the cooling triangle water distribution coefficient is greater than or equal to the preset value, outputting a second prompt message, the second prompt message is used to prompt that the cooling triangle water distribution of the cooling tower is uneven.

[0069] In some embodiments, the preset value of the cooling triangle water distribution coefficient is 5%. When the cooling triangle water distribution coefficient is less than 5%, the indirect air-cooling tower cooling triangle water distribution uniformity is better; when the cooling triangle water distribution coefficient is greater than or equal to 5%, the indirect air-cooling tower cooling triangle water distribution uniformity is poor.

[0070] In summary, the method for measuring the uniformity of water distribution in the cooling triangle provided by the present invention includes: obtaining the test data of the outlet air temperature of the cooling tower, the inlet water temperature of the cooling triangle, the outlet water temperature of each cooling triangle, the outlet air flow rate, and the inlet air parameters; determining the cooling triangle water distribution coefficient of the cooling tower according to the test data of the outlet air temperature, the inlet water temperature of the cooling triangle, the outlet water temperature of each cooling triangle, the outlet air flow rate, and the inlet air parameters, and outputting the cooling triangle water distribution coefficient. The method is simple and easy to implement, can accurately measure the cooling triangle water distribution coefficient, and provides data support for the uniformity judgment of water distribution in an indirect air-cooled tower.

[0071] based on Figure 5 , Figure 6 A flow chart of another cooling triangle water distribution uniformity measurement method provided in an embodiment of the present disclosure, wherein steps 302-306 are further disclosures of step 202, namely, further disclosures of a method for determining the outlet density Freund number.

[0072] Step 301, obtaining test data of the outlet air temperature, outlet air flow rate and inlet air parameters of the cooling tower.

[0073] In some embodiments, the test data of the cooling tower outlet air temperature, the cooling triangle inlet water temperature, the outlet water temperature of each cooling triangle, the outlet air flow rate and the inlet air parameters are obtained by controlling the test equipment.

[0074] In some embodiments, the test data of the cooling tower's outlet air temperature, the cooling triangle's inlet water temperature, and the outlet water temperature of each cooling triangle are obtained by controlling the thermometer to measure; the test data of the cooling tower's outlet air flow rate is obtained by controlling the impeller anemometer to measure; and the test data of the inlet air parameters are obtained by controlling the meteorological station to measure.

[0075] In some embodiments, the measuring points of the air temperature and wind speed at the outlet of the tower are evenly arranged on any two mutually perpendicular diameters of the throat section of the cooling tower in the form of equal-area rings.

[0076] In some embodiments, there are no less than 10 measuring points for the air temperature and wind speed at the outlet of the tower, that is, there are no less than 10 measurement data for the air temperature and wind speed at the outlet of the tower.

[0077] In some embodiments, the measuring point of the inlet water temperature is arranged on the main pipe of the cooling tower, and the outlet water temperature is arranged on the outlet pipe of each cooling triangle.

[0078] In some embodiments, the measuring points of the inlet air parameters are evenly arranged in the circumferential direction of the cooling tower air inlet, and the number of the measuring points of the inlet air parameters is more than one, for example, the measuring points of the inlet air parameters are 4 points evenly arranged in the circumferential direction of the air inlet.

[0079] In some embodiments, the test data of the outgoing air temperature, outgoing air flow rate and ingoing air parameters are collected and converted into signals through a data acquisition card, and the test data are converted from analog signals to digital signals so that they can be input into an industrial computer for digital calculation and processing.

[0080] Step 302, determining the density and humidity of the cooling tower's inlet air according to the test data of the inlet air parameters.

[0081] In some embodiments, the test data of the inlet air parameters include the inlet air dry bulb temperature, the inlet air relative humidity and the atmospheric pressure at each measuring point.

[0082] In some embodiments, step 302 includes: calculating the average dry-bulb temperature of the air entering the tower at each measuring point to obtain a first temperature, calculating the average relative humidity of the air entering the tower at each measuring point to obtain a first humidity; obtaining the Kelvin temperature of the first temperature, and calculating the saturated vapor pressure corresponding to the Kelvin temperature according to the Guiley formula; determining the product of the saturated vapor pressure and the first humidity as the pressure corresponding to the water vapor in the wet air entering the tower; determining the density of the air entering the tower and the moisture content of the air entering the tower according to the pressure corresponding to the water vapor in the wet air entering the tower, the Kelvin temperature and the atmospheric pressure.

[0083] In some embodiments, it is assumed that the measurement points of the inlet air parameters are 4 points evenly arranged in the circumferential direction of the air inlet, and the measurement point number is represented by k, where k is a positive integer from 1 to 4. The average value of the inlet air dry bulb temperature of each measurement point is calculated by the following formula (2), and the average value of the inlet air relative humidity of each measurement point is calculated by the following formula (3):

[0084]

[0085]

[0086] Among them, θ j Indicates the average dry bulb temperature of the air entering the tower, in °C; θ j,k It represents the dry-bulb temperature of the air entering the tower measured at the kth measuring point, in °C. Indicates the average relative humidity of the air entering the tower, in %; It indicates the relative humidity of the air entering the tower measured at the kth measuring point, in %.

[0087] It should be noted that the number of measurement points of the tower inlet air parameters is not limited to 4, that is, k in the formula can be 1-n, n is a positive integer, and the present disclosure is not limited thereto.

[0088] In some embodiments, the average dry bulb temperature of the air entering the tower is obtained. j The Kelvin temperature is 273.15+θ j , the saturated vapor pressure corresponding to the K temperature is calculated by the Guiley formula, as shown in the following formula (4):

[0089]

[0090] Where, T represents Kelvin temperature, the unit is K; P" v Indicates the saturated steam pressure corresponding to temperature T, in units of 10 5 Pa.

[0091] In some embodiments, the saturated vapor pressure P" corresponding to the K temperature v Average relative humidity of air entering the tower The product of is determined as the pressure corresponding to the water vapor in the wet air entering the tower, as shown in the following formula (5):

[0092]

[0093] Among them, p v It indicates the pressure corresponding to the water vapor in the wet air entering the tower, in Pa.

[0094] In some embodiments, determining the density of the air entering the tower according to the pressure corresponding to the water vapor in the wet air entering the tower, the K temperature and the atmospheric pressure includes: obtaining the difference between the atmospheric pressure and the pressure corresponding to the water vapor in the wet air entering the tower; taking the ratio of the product of the dry air gas constant and the K temperature to the difference as the density of the dry air entering the tower; taking the ratio of the pressure corresponding to the water vapor in the wet air entering the tower to the product of the water vapor gas constant and the K temperature as the density of the wet air entering the tower; and determining the sum of the density of the dry air entering the tower and the density of the wet air entering the tower as the density of the air entering the tower, as shown in the following formula (6):

[0095]

[0096] Among them, ρ a Indicates the density of air entering the tower, in kg / m3; p a Indicates atmospheric pressure, in Pa; R d Represents the gas constant of dry air, which is 287.14 J / (kg·K); R v Represents the water vapor gas constant, which is 461.53 J / (kg·K).

[0097] In some embodiments, the difference between the atmospheric pressure and the pressure corresponding to the water vapor in the wet air entering the tower is obtained; the ratio of the pressure corresponding to the water vapor in the wet air entering the tower to the difference is used as the moisture content of the air entering the tower, and the specific calculation is shown in the following formula (7):

[0098]

[0099] Among them, X j Indicates the humidity content of the air entering the tower.

[0100] Step 303, determining the dry air density out of the cooling tower according to the test data of the humidity content of the air entering the tower and the temperature of the air leaving the tower.

[0101] In some embodiments, the test data of the air temperature at the outlet of the tower includes the dry-bulb temperature of the air at the outlet of the tower at each measuring point.

[0102] In some embodiments, based on the test data of the inlet air humidity content and the outlet air temperature, determining the outlet dry air density of the cooling tower includes: calculating the average of the outlet air dry bulb temperatures of each measuring point to obtain a second temperature; determining the pressure corresponding to the water vapor in the outlet wet air based on the inlet air humidity content and the second temperature; and determining the outlet dry air density based on the pressure corresponding to the water vapor in the outlet wet air and the atmospheric pressure.

[0103] In some embodiments, the number of the measuring point of the air temperature at the outlet of the tower is represented by k, where k is 1-n and n is a positive integer. The average value of the dry-bulb temperature of the air at the outlet of the tower at each measuring point is calculated by the following formula (8):

[0104]

[0105] Among them, θ o Indicates the average dry bulb temperature of the tower air in °C; θ o,k It represents the dry-bulb temperature of the air leaving the cooling tower at the kth measuring point, ℃.

[0106] In some embodiments, the cooling tower is an air-cooled cooling tower, and the humidity content of the air entering and leaving the tower is the same. The pressure corresponding to the water vapor in the wet air in the tower can be calculated based on the inlet humidity content and the dry bulb temperature of the air leaving the tower. The specific calculation formula is shown in the following formula (9):

[0107]

[0108] Among them, p o The pressure corresponding to the water vapor in the wet air leaving the tower, in Pa; p a represents atmospheric pressure, X j Indicates the humidity content of the air entering the tower.

[0109] In some embodiments, determining the density of the air out of the tower according to the pressure corresponding to the water vapor in the wet air out of the tower and the atmospheric pressure includes: obtaining the average dry bulb temperature θ of the air out of the tower o The Kelvin temperature is 273.15+θ o ; Obtain the difference between the atmospheric pressure and the pressure corresponding to the water vapor in the wet air leaving the tower; Take the ratio of the product of the dry air gas constant and the Kelvin temperature to the difference as the dry air density leaving the tower, as shown in the following formula (10):

[0110]

[0111] Among them, ρ d Indicates the tower dry air density in kg / m 3 ;p a Indicates atmospheric pressure, in Pa; R d Represents the gas constant of dry air, which is 287.14 J / (kg·K); R v Represents the water vapor gas constant, which is 461.53 J / (kg·K).

[0112] Step 304, determining the average outflow velocity of the cooling tower air at the throat section according to the test data of the outflow velocity of the cooling tower air.

[0113] In some embodiments, the test data of the out-tower air flow rate includes the out-tower air flow rate of the throat section of the cooling tower at each measuring point.

[0114] In some embodiments, the measuring point of the air flow rate out of the tower is arranged at the throat of the cooling tower, and the measuring point is numbered as k, where k is 1-n and n is a positive integer. The average value of the air flow rate out of the throat section of the cooling tower at each measuring point is calculated to obtain the air flow rate out of the throat section of the cooling tower, as shown in the following formula (11):

[0115]

[0116] Among them, V o It indicates the average air velocity out of the tower at the throat section, in m / s; V o,k It indicates the average air velocity out of the cooling tower at the kth measuring point, in m / s.

[0117] Step 305, determining the circulating water volume of each cooling triangle according to the measured data of the inlet air density, the outlet dry air density, the outlet air average flow rate, the inlet water temperature of the cooling triangle, and the outlet water temperature of each cooling triangle.

[0118] In some embodiments, determining the circulating water volume of each cooling triangle based on the measured data of the inlet air density, the outlet dry air density, the average outlet air flow rate, the inlet water temperature of the cooling triangle, and the outlet water temperature of each cooling triangle includes: determining the inlet air enthalpy based on the test data of the inlet air parameters and the inlet air humidity, and determining the outlet air enthalpy based on the test data of the outlet air temperature and the inlet air humidity; determining the product of the outlet dry air density, the average outlet air flow rate, and the cross-sectional area of ​​the tower throat as the dry air mass flow rate; determining the cooling triangle heat exchange amount based on the dry air mass flow rate, the inlet air enthalpy, and the outlet air enthalpy, and dividing the cooling triangle heat exchange amount by the number of cooling triangles to obtain the heat exchange amount of a single cooling triangle; determining the circulating water volume of each cooling triangle based on the measured data of the heat exchange amount of a single cooling triangle, the inlet water temperature of the cooling triangle, and the outlet water temperature of each cooling triangle.

[0119] In some embodiments, the enthalpy of the air entering the cooling tower is determined based on the average dry-bulb temperature of the air entering the cooling tower and the humidity content of the air entering the cooling tower. Since the humidity content of the air entering the cooling tower is the same as the humidity content of the air leaving the cooling tower, the enthalpy of the air leaving the cooling tower is determined based on the average dry-bulb temperature of the air leaving the cooling tower and the humidity content of the air entering the cooling tower. The calculation process is shown in the following formulas (12) and (13), respectively:

[0120] i j =1005θ j +(2.5×10 6 +1842θ j )X j Formula (12)

[0121] i o =1005θ o +(2.5×10 6 +1842θ o )X j Formula (13)

[0122] Among them, i j Indicates the enthalpy of the air entering the tower, in J / kg; i o Indicates the tower air enthalpy in J / kg; θ j Indicates the average dry bulb temperature of the air entering the tower, in °C; θ o Indicates the average dry-bulb temperature of the tower air in °C.

[0123] In some embodiments, the dry air mass flow rate is determined by multiplying the density of the dry air out of the tower, the average flow rate of the air out of the tower, and the cross-sectional area of ​​the tower throat, as shown in the following formula (14):

[0124]

[0125] Among them, m aIndicates the dry air mass flow rate in kg / s; V o It indicates the average air velocity out of the tower at the throat section, in m / s; S h Indicates the cross-sectional area of ​​the tower throat, in m 2 ; R o Represents the tower throat radius, in m.

[0126] In some embodiments, under windless conditions, the air flow field of the cooling tower is axisymmetric, and the heat dissipated by each cooling triangle is equal. According to the law of conservation of energy, the heat obtained by the air is equal to the heat lost by the circulating water in the cooling triangle. Thus, the difference between the enthalpy of the air entering the tower and the enthalpy of the air leaving the tower can be calculated, and the heat exchange amount of the cooling triangle can be determined according to the product of the dry air mass flow rate and the difference. The heat exchange amount of the cooling triangle is divided by the number of cooling triangles to obtain the heat exchange amount of a single cooling triangle. The calculation process is shown in the following formulas (15) and (16):

[0127] Q=m a (i o -i j ) Formula (15)

[0128] Q k =Q / K Formula (16)

[0129] Where, Q represents the heat exchange amount, the unit is w; Q k Indicates the heat exchange capacity of a single cooling triangle, in units of w; indicates the number of cooling triangles; m a Indicates the dry air mass flow rate in kg / s; i j Indicates the enthalpy of the air entering the tower, in J / kg; i o It expresses the tower air enthalpy in J / kg.

[0130] In some embodiments, the measured data difference between the inlet water temperature of the cooling triangle and the outlet water temperature of each cooling triangle is used as the inlet and outlet water temperature difference of each cooling triangle; the ratio of the heat exchange amount of a single cooling triangle to the product of the inlet and outlet water temperature difference of each cooling triangle and the specific heat of water is calculated respectively to obtain the circulating water amount of each cooling triangle, and the calculation formula is shown in the following formula (17):

[0131]

[0132] Among them, Q i Indicates the circulating water volume of each cooling triangle, in kg / s; C w represents the specific heat of water, in J / (kg.℃); T1 represents the inlet water temperature, in ℃; T i Indicates the outlet water temperature of each cooling triangle, in °C; Q k Represents the heat exchange capacity of a single cooling triangle, in units of w.

[0133] Step 306, obtaining the average of the circulating water volumes of all cooling triangles as the average water volume of the cooling triangles, and determining the cooling triangle water volume uniformity coefficient of the cooling tower according to the circulating water volume of each cooling triangle and the average water volume of the cooling triangles.

[0134] In some embodiments, determining the cooling triangle water distribution coefficient of the cooling tower according to the circulating water volume of each cooling triangle and the average water volume of the cooling triangle includes: calculating the ratio of the circulating water volume of each cooling triangle to the average water volume of the cooling triangle minus 1 as the relative water volume of each cooling triangle; summing the squares of the relative water volumes of all cooling triangles, and taking the square root of the ratio of the summation result to the number of cooling triangles to obtain the cooling triangle water distribution coefficient, and the calculation formula is shown in the following formula (18):

[0135]

[0136] Where i is used to represent the number of each cooling triangle, where i is 1-k, k is a positive integer; σ represents the water distribution coefficient of the indirect air-cooling tower cooling triangle; Q i Indicates the circulating water volume of each cooling triangle, in kg / s; Q av Represents the average water volume in the cooling triangle, in kg / s.

[0137] In some embodiments, the test data of the cooling tower outlet air temperature, the cooling triangle inlet water temperature, the cooling triangle outlet water temperature, the tower outlet air flow rate and the tower inlet air parameters are obtained by controlling the test equipment, and the test data is transmitted to the data acquisition card in real time through the data acquisition line, and then transmitted to the industrial computer through the data acquisition card. The water distribution uniformity coefficient of the indirect air-cooling tower cooling triangle is calculated according to the above formulas (2)-(18), thereby realizing the test of the uniformity of the water distribution in the cooling triangle of the indirect air-cooling tower.

[0138] In some embodiments, the method also includes: if the cooling triangle water distribution coefficient is less than a preset value, outputting a first prompt message, the first prompt message is used to prompt that the cooling triangle water distribution of the cooling tower is uniform; or, if the cooling triangle water distribution coefficient is greater than or equal to the preset value, outputting a second prompt message, the second prompt message is used to prompt that the cooling triangle water distribution of the cooling tower is uneven.

[0139] In some embodiments, the preset value of the cooling triangle water distribution coefficient is 5%. When the cooling triangle water distribution coefficient is less than 5%, the indirect air-cooling tower cooling triangle water distribution uniformity is better; when the cooling triangle water distribution coefficient is greater than or equal to 5%, the indirect air-cooling tower cooling triangle water distribution uniformity is poor.

[0140] In summary, the method for measuring the uniformity of water distribution in the cooling triangle provided by the present invention includes: obtaining test data of the outlet air temperature, outlet air flow rate and inlet air parameters of the cooling tower; determining the inlet air density and the inlet air moisture content of the cooling tower according to the test data of the inlet air parameters; determining the outlet dry air density of the cooling tower according to the test data of the inlet air moisture content and the outlet air temperature; determining the average outlet air flow rate of the throat section of the cooling tower according to the test data of the outlet air flow rate; determining the circulating water volume of each cooling triangle according to the measured data of the inlet air density, the outlet dry air density, the outlet air average flow rate, the inlet water temperature of the cooling triangle and the outlet water temperature of each cooling triangle; obtaining the average value of the circulating water volumes of all cooling triangles as the average water volume of the cooling triangle, and determining the cooling triangle water volume uniform distribution coefficient of the cooling tower according to the circulating water volume of each cooling triangle and the average water volume of the cooling triangle. The method is simple and easy to implement, can accurately obtain the water volume of each cooling triangle of the indirect air cooling tower, and calculate the uniform distribution coefficient, which provides data support for the uniformity judgment of water volume distribution of the indirect air cooling tower.

[0141] Figure 7 A schematic block diagram of an example electronic device 400 that can be used to implement an embodiment of the present disclosure is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present disclosure described and / or required herein.

[0142] like Figure 7 As shown, the device 400 includes a computing unit 401, which can perform various appropriate actions and processes according to a computer program stored in a ROM (Read-Only Memory) 402 or a computer program loaded from a storage unit 408 to a RAM (Random Access Memory) 403. In the RAM 403, various programs and data required for the operation of the device 400 can also be stored. The computing unit 401, the ROM 402, and the RAM 403 are connected to each other via a bus 404. An I / O (Input / Output) interface 405 is also connected to the bus 404.

[0143] A number of components in the device 400 are connected to the I / O interface 405, including: an input unit 406, such as a keyboard, a mouse, etc.; an output unit 407, such as various types of displays, speakers, etc.; a storage unit 408, such as a disk, an optical disk, etc.; and a communication unit 409, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 409 allows the device 400 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0144] The computing unit 401 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the computing unit 401 include, but are not limited to, a CPU (Central Processing Unit), a GPU (Graphic Processing Units), various dedicated AI (Artificial Intelligence) computing chips, various computing units running machine learning model algorithms, a DSP (Digital Signal Processor), and any appropriate processor, controller, microcontroller, etc. The computing unit 401 performs the various methods and processes described above, such as the method for adjusting the color temperature. For example, in some embodiments, the method for adjusting the color temperature may be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit 408. In some embodiments, part or all of the computer program may be loaded and / or installed on the device 400 via the ROM 402 and / or the communication unit 409. When the computer program is loaded into the RAM 403 and executed by the computing unit 401, one or more steps of the method described above may be performed. Alternatively, in other embodiments, the computing unit 401 may be configured to execute the aforementioned color temperature adjustment method in any other appropriate manner (for example, by means of firmware).

[0145] Various embodiments of the systems and techniques described above herein may be implemented in digital electronic detection device systems, integrated detection device systems, FPGAs (Field Programmable Gate Arrays), ASICs (Application-Specific Integrated Circuits), ASSPs (Application-Specific Standard Products), SOCs (System On Chips), CPLDs (Complex Programmable Logic Devices), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include: being implemented in one or more computer programs, which may be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, which may receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0146] The program code for implementing the method of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0147] In the context of the present disclosure, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any suitable combination of the foregoing. More specific examples of machine-readable storage media may include electrical connections based on one or more lines, portable computer disks, hard disks, RAM, ROM, EPROM (Electrically Programmable Read-Only-Memory) or flash memory, optical fiber, CD-ROM (Compact Disc Read-Only Memory), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0148] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (Cathode-Ray Tube) or LCD (Liquid Crystal Display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0149] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: LAN (Local Area Network), WAN (Wide Area Network), the Internet, and blockchain networks.

[0150] A computer system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship between the client and the server is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services ("Virtual Private Server", or "VPS" for short). The server may also be a server of a distributed system, or a server combined with a blockchain.

[0151] It should be noted that artificial intelligence is a discipline that studies how computers can simulate certain human thought processes and intelligent behaviors (such as learning, reasoning, thinking, planning, etc.), and includes both hardware-level and software-level technologies. Artificial intelligence hardware technologies generally include technologies such as sensors, dedicated artificial intelligence chips, cloud computing, distributed storage, and big data processing; artificial intelligence software technologies mainly include computer vision technology, speech recognition technology, natural language processing technology, as well as machine learning / deep learning, big data processing technology, knowledge graph technology, and other major directions.

[0152] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

[0153] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A cooling triangle water distribution uniformity measurement system, the measurement system is applied to a cooling tower, characterized in that: The measuring system comprises: A thermometer, the thermometer is used to test the air temperature at the outlet of the cooling tower, the water inlet temperature and the water outlet temperature of the cooling triangle, wherein the measuring point of the air temperature at the outlet is arranged at the throat of the cooling tower, the measuring point of the water inlet temperature is arranged on the main pipe of the cooling tower, and the measuring point of the water outlet temperature is arranged on the water outlet pipe of each cooling triangle; An impeller anemometer, the impeller anemometer is used to test the outlet air velocity of the cooling tower, and the measuring points of the outlet air velocity and the outlet air temperature are arranged in the same manner; A meteorological station, wherein the meteorological station is used to test the air parameters of the cooling tower, and the measuring points of the air parameters of the cooling tower are arranged at the air inlet of the cooling tower; A data acquisition card, the data acquisition card is connected to the weather station, the thermometer and the impeller anemometer through data lines, and is used to collect and convert the test data of the tower outlet air temperature, the cooling triangle inlet water temperature, the cooling triangle outlet water temperature, the tower outlet air velocity and the tower inlet air parameters, and transmit the data to the industrial computer; And the industrial computer is connected to the data acquisition card through a data cable, and the industrial computer is used to determine the cooling triangle water distribution coefficient of the cooling tower according to the test data of the outlet air temperature, the inlet water temperature of the cooling triangle, the outlet water temperature of each cooling triangle, the outlet air flow rate and the inlet air parameters, and output the cooling triangle water distribution coefficient.

2. The measuring system according to claim 1, characterized in that The measuring points of the air temperature at the outlet of the tower are evenly arranged on any two mutually perpendicular diameters of the throat section of the cooling tower in the form of equal-area rings.

3. A method for measuring the density Freund number at a cooling tower outlet, characterized in that: The method comprises: Obtain test data of the air temperature at the outlet of the cooling tower, the water inlet temperature of the cooling triangle, the water outlet temperature of each cooling triangle, the air flow rate at the outlet of the cooling tower, and the air parameters at the inlet of the cooling tower; The cooling triangle water distribution coefficient of the cooling tower is determined according to the test data of the outlet air temperature, the inlet water temperature of the cooling triangle, the outlet water temperature of each cooling triangle, the outlet air flow rate and the inlet air parameters, and the cooling triangle water distribution coefficient is output.

4. The method according to claim 3, characterized in that The method further comprises: If the cooling triangle water distribution coefficient is less than a preset value, a first prompt message is output, wherein the first prompt message is used to prompt that the cooling triangle water distribution of the cooling tower is uniform. Or, if the cooling triangle water distribution coefficient is greater than or equal to a preset value, a second prompt information is output, and the second prompt information is used to prompt that the cooling triangle water distribution of the cooling tower is uneven.

5. The method according to claim 3, characterized in that: The method of determining the cooling triangle water distribution coefficient of the cooling tower according to the test data of the outlet air temperature, the inlet water temperature of the cooling triangle, the outlet water temperature of each cooling triangle, the outlet air flow rate of the tower and the inlet air parameters comprises: Determining the inlet air density and the inlet air humidity of the cooling tower according to the test data of the inlet air parameters; Determine the dry air density of the cooling tower outlet according to the test data of the inlet air humidity content and the outlet air temperature; Determine the average outflow velocity of the air at the throat section of the cooling tower according to the test data of the outflow velocity of the air; Determine the circulating water volume of each cooling triangle according to the measured data of the inlet air density, the outlet dry air density, the outlet air average flow rate, the inlet water temperature of the cooling triangle, and the outlet water temperature of each cooling triangle; The average value of the circulating water volume of all the cooling triangles is calculated as the average water volume of the cooling triangle, and the cooling triangle water volume uniform distribution coefficient of the cooling tower is determined according to the circulating water volume of each cooling triangle and the average water volume of the cooling triangle.

6. The method according to claim 5, characterized in that Determining the circulating water volume of each cooling triangle according to the measured data of the inlet air density, the outlet dry air density, the outlet air average flow rate, the inlet water temperature of the cooling triangle, and the outlet water temperature of each cooling triangle comprises: Determine the inlet air enthalpy according to the test data of the inlet air parameter and the inlet air moisture content, and determine the outlet air enthalpy according to the test data of the outlet air temperature and the inlet air moisture content; The dry air mass flow rate is determined by multiplying the density of the dry air out of the tower, the average flow rate of the air out of the tower and the cross-sectional area of ​​the tower throat; Determine the cooling triangle heat exchange capacity according to the dry air mass flow rate, the tower inlet air enthalpy and the tower outlet air enthalpy, and divide the cooling triangle heat exchange capacity by the number of cooling triangles to obtain the heat exchange capacity of a single cooling triangle; The circulating water volume of each cooling triangle is determined according to the measured data of the heat exchange volume of the single cooling triangle, the water inlet temperature of the cooling triangle, and the water outlet temperature of each cooling triangle.

7. The method according to claim 5 or 6, characterized in that: The test data of the inlet air parameters include the inlet air dry bulb temperature, inlet air relative humidity and atmospheric pressure at each measuring point. The inlet air density and inlet air moisture content of the cooling tower are determined according to the inlet air parameters. Calculate the average dry-bulb temperature of the air entering the tower at each measuring point to obtain a first temperature, and calculate the average relative humidity of the air entering the tower at each measuring point to obtain a first humidity; Obtaining the Kelvin temperature of the first temperature, and calculating the saturated vapor pressure corresponding to the Kelvin temperature according to the Guillory formula; Determine the product of the saturated vapor pressure and the first humidity as the pressure corresponding to the water vapor in the wet air entering the tower; The density of the air entering the tower and the moisture content of the air entering the tower are determined according to the pressure corresponding to the water vapor in the wet air entering the tower, the Kelvin temperature and the atmospheric pressure.

8. The method according to claim 5 or 6, characterized in that: The test data of the outlet air temperature includes the outlet air dry bulb temperature of each measuring point. The determination of the outlet dry air density of the cooling tower according to the test data of the inlet air moisture content and the outlet air temperature includes: Calculate the average dry-bulb temperature of the air out of the tower at each measuring point to obtain a second temperature; Determine the pressure corresponding to the water vapor in the wet air leaving the tower according to the moisture content of the air entering the tower and the second temperature; The density of the dry air leaving the tower is determined according to the pressure corresponding to the water vapor in the wet air leaving the tower and the atmospheric pressure.

9. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 3 to 8.

10. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to cause the computer to execute the method according to any one of claims 3-8.

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