A water distribution optimization method and system for reducing the impact of crosswind on intercooling tower performance

Abstract

The present invention discloses a water distribution optimization method and system for reducing the impact of side wind on the performance of intercooling towers, comprising: data acquisition and calculation to obtain the average air density entering each sector of the intercooling tower; calculation to obtain the average wind speed of each sector of the intercooling tower; calculation to obtain the average ventilation volume of each sector within a preset time, as well as the total ventilation volume of the intercooling tower; when it is determined that the environment in which the intercooling tower is located is a windless or weak wind environment, the intercooling tower maintains equal water distribution. When the environment in which the intercooling tower is located is a side wind environment, water distribution optimization is performed; the total circulating water flow of the unit within the preset time is calculated, and the ratio of the average ventilation volume to the total ventilation of the intercooling tower is combined to calculate the preliminary optimized flow of each sector after optimization; and determine the final target flow. The system comprises a data acquisition module, a calculation module, a judgment module, and an identification module, etc. The present invention enables the water distribution optimization scheme to be implemented in an actual power plant, solving the problem that the total heat dissipation of the intercooling tower is greatly affected by the environmental side wind.

Description

Technical Field

[0001] The present invention belongs to the technical field of water distribution optimization of intercooling towers, and in particular relates to a water distribution optimization method and system for reducing the influence of side wind on the performance of intercooling towers. Background Art

[0002] The development of power plant air cooling technology has effectively addressed the geographical constraints of coal-rich, water-scarce northern China. Indirect air cooling, in particular, has been widely adopted in the design and operation of modern power plants due to its inherent advantages, such as water conservation and wind resistance. However, the actual cooling performance of indirect cooling tower systems is significantly affected by environmental factors, especially in crosswind environments. Due to the flow around the cylinder and the influence of surrounding buildings, the ventilation volume in different directions (sectors) will deviate, resulting in changes in the heat dissipation of each sector. Summary of the Invention

[0003] The purpose of the present invention is to address the problem of the influence of environmental side wind on the heat dissipation performance of intercooler towers, and to provide a water distribution optimization method and system for reducing the influence of side wind on the performance of intercooler towers, so that the water distribution optimization scheme can be implemented in actual power plants, and is used to solve the problem that the total heat dissipation of intercooler towers is greatly affected by environmental side wind.

[0004] The present invention is achieved by adopting the following technical solutions:

[0005] A water distribution optimization method for reducing the impact of crosswind on the performance of intercooler towers, comprising:

[0006] Collect the inlet and outlet air temperatures, outlet wind speed, circulating water inlet branch flow rate of each sector of the intercooler to be tested, and the local measured atmospheric pressure;

[0007] According to the inlet and outlet air temperatures of each sector and the local measured atmospheric pressure, the average air density entering each sector of the intercooler is calculated;

[0008] According to the outlet wind speed and outlet wind direction of each sector, the average outlet wind speed of each sector of the intercooling tower is calculated;

[0009] According to the average air density and average wind speed of each sector, the average ventilation volume of each sector within the preset time and the total ventilation volume of the intercooling tower are calculated;

[0010] Based on the calculated average ventilation volume of each sector, if the intercooler is in a windless or weak wind environment, the intercooler maintains equal water distribution; if the intercooler is in a crosswind environment, water distribution optimization is performed.

[0011] Based on the collected circulating water inlet branch flow of each sector, the total circulating water flow of the unit within the preset time is calculated. Combined with the ratio of the average ventilation volume to the total ventilation of the intercooler, the preliminary optimized flow of each sector after optimization is calculated;

[0012] The preliminary optimized flow rate is compared with the maximum flow capacity of each sector branch. When the preliminary optimized flow rate is less than the maximum flow capacity of the sector, the preliminary optimized flow rate is the final target flow rate; when a certain preliminary optimized flow rate is greater than the maximum flow capacity of the branch, the part of the flow exceeding the maximum flow capacity will be distributed in sequence according to the size of the optimized flow rate to obtain the final target flow rate, so as to ensure that the final target flow rate is within the maximum flow capacity of each sector.

[0013] A further improvement of the present invention is to collect the inlet and outlet air temperatures, outlet wind speed, circulating water inlet branch flow of each sector of the intercooler to be tested, and the local measured atmospheric pressure, including:

[0014] Temperature measuring points are installed on the inlet and outlet sides of the fin tube bundles in each sector of the intercooler, and wind speed measuring points are installed on the outlet side. Flow meters and valves are installed on the water inlet branches of each sector to collect and control the circulating water flow in each sector.

[0015] A further improvement of the present invention is that the temperature measuring points are arranged as platinum resistance cables, the wind speed measuring points use ultrasonic wind speed and direction sensors, the flow meter uses an electromagnetic flow meter, and the valve uses an electric door.

[0016] A further improvement of the present invention is that the average ventilation volume of each sector within a preset time and the total ventilation volume of the indirect cooling tower are calculated based on the average air density and average outlet wind speed of each sector, as follows:

[0017]

[0018] Among them, W i is the average ventilation volume of sector i, is the average air velocity of sector i, A f is the windward area of ​​the finned tube bundle, is the calculated average air density entering sector i, W tot is the total ventilation volume of the intercooler.

[0019] A further improvement of the present invention is that, based on the collected circulating water inlet branch flow of each sector, the total circulating water flow of the unit within the preset time is calculated, and combined with the ratio of the average ventilation volume to the total ventilation of the intercooler, the preliminary optimized flow of each sector after optimization is calculated as follows:

[0020]

[0021] in, Initially optimize the traffic for sector i, Z i is the average ventilation volume of each sector W i Total ventilation volume of the indirect cooling tower W tot The ratio, q tot is the total circulating water flow of the unit.

[0022] A further improvement of the present invention is that when a certain preliminary optimized flow rate is greater than the maximum flow capacity of the branch pipe, the flow rate exceeding the maximum flow capacity is distributed in sequence according to the size of the optimized flow rate to obtain the final target flow rate, as follows:

[0023]

[0024] Among them, Q max is the maximum flow capacity of the branch pipe, 1rei Indicates the initial optimized flow with the largest value. The final target flow of each sector can be obtained by analogy.

[0025] A water distribution optimization system for reducing the impact of crosswind on the performance of intercooler towers, comprising:

[0026] The data acquisition module is used to collect the inlet and outlet air temperatures, outlet wind speed, circulating water inlet branch flow of each sector of the intercooler to be tested, and the local measured atmospheric pressure;

[0027] The first calculation module is used to calculate the average air density entering each sector of the intercooling tower based on the inlet and outlet air temperatures of each sector and the local measured atmospheric pressure;

[0028] The second calculation module is used to calculate the average outlet wind speed of each sector of the intercooling tower according to the outlet wind speed and outlet wind direction of each sector;

[0029] The third calculation module is used to calculate the average ventilation volume of each sector within a preset time and the total ventilation volume of the intercooling tower according to the average air density and average wind speed of each sector;

[0030] The judgment module is used to determine whether the intercooler is in a windless or weak wind environment based on the calculated average ventilation volume of each sector, and to maintain equal water distribution in the intercooler; when the intercooler is in a crosswind environment, water distribution optimization is performed;

[0031] The fourth calculation module is used to calculate the total circulating water flow of the unit within a preset time based on the collected circulating water inlet branch flow of each sector, and calculate the preliminary optimized flow of each sector after optimization by combining the ratio of the average ventilation volume to the total ventilation of the intercooling tower;

[0032] The identification module is used to compare the preliminary optimized flow rate with the maximum flow capacity of each sector branch. When the preliminary optimized flow rate is less than the maximum flow capacity of the sector, the preliminary optimized flow rate is the final target flow rate; when a certain preliminary optimized flow rate is greater than the maximum flow capacity of the branch, the part of the flow exceeding the maximum flow capacity will be distributed in sequence according to the size of the optimized flow rate to obtain the final target flow rate, so as to ensure that the final target flow rate is within the maximum flow capacity of each sector.

[0033] A further improvement of the present invention is that, in the third calculation module, the average ventilation volume of each sector within a preset time and the total ventilation volume of the indirect cooling tower are calculated based on the average air density and average wind speed of each sector, as follows:

[0034]

[0035] Among them, W i is the average ventilation volume of sector i, is the average air velocity of sector i, A f is the windward area of ​​the finned tube bundle, is the calculated average air density entering sector i, W tot is the total ventilation volume of the intercooler.

[0036] A further improvement of the present invention is that, in the fourth calculation module, the total circulating water flow of the unit within the preset time is calculated based on the collected circulating water inlet branch flow of each sector, and the ratio of the average ventilation volume to the total ventilation of the intercooler tower is combined to calculate the preliminary optimized flow of each sector after optimization, as follows:

[0037]

[0038] in, Initially optimize the traffic for sector i, Z i is the average ventilation volume of each sector W i Total ventilation volume of the indirect cooling tower W tot The ratio, q tot is the total circulating water flow of the unit.

[0039] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of a water distribution optimization method for reducing the impact of side wind on intercooler performance.

[0040] The present invention has at least the following beneficial technical effects:

[0041] The present invention provides a water distribution optimization method and system for reducing the impact of crosswind on the performance of intercooler towers. By installing temperature, wind speed, wind direction and other measuring points in each sector of the intercooler tower, different operating conditions of the intercooler tower can be monitored in real time, and the differences in the operating environments of different sectors of the intercooler tower during operation can be understood. This method can not only be used to guide the optimization of circulating water distribution of the intercooler tower, but also to guide the anti-freezing protection of the intercooler tower in winter. By calculating the ventilation volume of each sector, it is determined whether the environment in which the intercooler tower is located is a crosswind environment, and whether each sector needs to optimize the water distribution flow, thereby accurately and effectively guiding the water distribution plan of the intercooler tower, improving its operating efficiency, and achieving the goal of energy conservation and emission reduction.

[0042] Furthermore, by installing electromagnetic flow meters on the water inlet branches of each sector, operating personnel can understand the water distribution conditions of each sector of the intercooler and the entire tower in real time.

[0043] Furthermore, installing an electric door at the water inlet branch pipe can realize flexible control of the water inlet flow of each sector of the intercooler, which is convenient for adjusting the operating parameters of the intercooler in daily operation.

[0044] Furthermore, an ultrasonic wind speed and direction sensor is used, with an accuracy of ±3%. Wind direction data can be obtained simultaneously on the basis of wind speed measurement. It has high strength, weather resistance, corrosion resistance and waterproofness, and a longer service life.

[0045] In summary, the present invention controls the water inlet flow of each sector, thereby optimizing the water distribution scheme of the unit, and solving the problem of mismatched air-water ratio of the intercooler in a crosswind environment and reduced cooling performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a flow chart of a water distribution optimization method for reducing the impact of crosswind on the performance of an intercooler tower according to an embodiment of the present invention;

[0047] Figure 2 This is a schematic diagram of the installation of wind speed measuring points and temperature measuring points in any sector of an intercooler according to an embodiment of the present invention;

[0048] Figure 3 Schematic diagram of wind direction data obtained by wind speed measurement points in an embodiment of the present invention;

[0049] Figure 4 This is a schematic diagram of the installation of electromagnetic flowmeters and electric doors on the water inlet flow branches of each sector according to an embodiment of the present invention;

[0050] Figure 5 This is a structural block diagram of a water distribution optimization system for reducing the impact of crosswind on the performance of intercooling towers provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0052] It should also be understood that the terms used in the present specification are only for the purpose of describing particular embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0053] It should be further understood that the term "and / or" as used in the present specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects are in an "or" relationship.

[0054] It should be understood that although the terms "first," "second," and "third" may be used to describe preset ranges in embodiments of the present invention, these preset ranges should not be limited to these terms. These terms are merely used to distinguish one preset range from another. For example, without departing from the scope of embodiments of the present invention, the first preset range may also be referred to as the second preset range, and similarly, the second preset range may also be referred to as the first preset range.

[0055] The word "if," as used herein, may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0056] The accompanying drawings illustrate various schematic diagrams of structures according to embodiments disclosed herein. These figures are not drawn to scale; for clarity, some details are exaggerated and some details may be omitted. The shapes of the various regions and layers shown in the figures, as well as their relative sizes and positional relationships, are merely exemplary and may deviate in practice due to manufacturing tolerances or technical limitations. Those skilled in the art may design regions / layers with different shapes, sizes, and relative positions as needed.

[0057] The present invention provides a water distribution optimization method for reducing the influence of side wind on the performance of intercooling towers. By utilizing the relationship between wind speed and ventilation volume in different sectors, the ventilation volume of each sector of the intercooling tower is calculated to obtain the circulating water flow matching the wind volume of each sector, thereby meeting the project requirements and being convenient and fast.

[0058] See Figure 1 This embodiment provides a water distribution optimization method for reducing the impact of crosswind on the performance of intercooler towers, including:

[0059] Collect the inlet and outlet air temperatures, outlet wind speed, circulating water inlet branch flow rate of each sector of the intercooler to be tested, and the local measured atmospheric pressure;

[0060] According to the inlet and outlet air temperatures of each sector and the local measured atmospheric pressure, the average air density entering each sector of the intercooler is calculated;

[0061] According to the outlet wind speed and outlet wind direction of each sector, the average outlet wind speed of each sector of the intercooling tower is calculated;

[0062] According to the average air density and average wind speed of each sector, the average ventilation volume of each sector within the preset time and the total ventilation volume of the intercooling tower are calculated;

[0063] Based on the calculated average ventilation volume of each sector, if the intercooler is in a windless or weak wind environment, the intercooler maintains equal water distribution; if the intercooler is in a crosswind environment, water distribution optimization is performed.

[0064] Based on the collected circulating water inlet branch flow of each sector, the total circulating water flow of the unit within the preset time is calculated. Combined with the ratio of the average ventilation volume to the total ventilation of the intercooler, the preliminary optimized flow of each sector after optimization is calculated;

[0065] The preliminary optimized flow rate is compared with the maximum flow capacity of each sector branch. When the preliminary optimized flow rate is less than the maximum flow capacity of the sector, the preliminary optimized flow rate is the final target flow rate; when a certain preliminary optimized flow rate is greater than the maximum flow capacity of the branch, the part of the flow exceeding the maximum flow capacity will be distributed in sequence according to the size of the optimized flow rate to obtain the final target flow rate, so as to ensure that the final target flow rate is within the maximum flow capacity of each sector.

[0066] In this embodiment, refer to Figure 2 Measuring point arrangement: The measuring point arrangement position is as follows Figure 2 As shown, the wind speed measuring points are only arranged on the air outlet side, and the temperature measuring points are arranged on both sides of the air inlet and outlet;

[0067] The wind speed measurement point is located on the outlet side of the finned tube bundle in the sector of the indirect cooling tower. Ultrasonic wind speed and direction sensors are used. It is recommended that this measurement be completed during infrastructure construction.

[0068] In this embodiment, refer to Figure 3 , θ is the angle between the measured wind direction and the sector tangent, and 2 to 3 wind speed measuring points are evenly arranged along the circumference of each sector; 3 groups are evenly distributed along the height.

[0069] Average air velocity in sector i It is the arithmetic mean of the measured wind speed at each measuring point after converting it into radial wind speed through wind direction. The specific calculation is as follows:

[0070]

[0071] Arrange inlet and outlet air temperature measuring points in each sector. To measure the inlet air temperature, In order to measure the outlet air temperature, platinum resistance cables are used at the corresponding inlet and outlet sides of each wind speed measurement point.

[0072] According to the measured inlet and outlet air temperatures, calculate the average air density entering sector i is the arithmetic mean of the air density at each measuring point, which is calculated as follows:

[0073]

[0074] in, is the average density at the nth measuring point in sector i, calculated as follows:

[0075]

[0076] in, is the air inlet density at the nth measuring point in sector i, is the wind density at the nth measuring point in sector i:

[0077]

[0078] Among them, p atm It represents the local measured atmospheric pressure, 1.293 is the air density at normal temperature and pressure, 101.325 is the standard atmospheric pressure, and 273.15 is the conversion factor between the Kelvin scale and the Celsius scale.

[0079] The ventilation volume W of sector i is calculated based on the collected data i And the total ventilation volume of the indirect cooling tower W tot for:

[0080]

[0081]

[0082] Among them, A f is the windward area of ​​the finned tube bundle.

[0083] The ventilation volume W of each sector was obtained according to the calculation i , where W max is the ventilation flow rate of the maximum ventilation fan area of ​​the indirect cooling tower, W min is the ventilation flow rate of the minimum ventilation fan area, and its ventilation rate ratio is κ;

[0084] Compare κ with the preset value κ lim The size of the intercooler to be tested is used to determine whether the environment is a crosswind environment or a windless (light breeze) environment, and to decide whether to optimize the water distribution: When κ>κ lim When κ≤κ, it is a crosswind environment (the system performs water distribution optimization). limWhen there is no wind or a light breeze, the intercooler maintains even water distribution;

[0085] In this example, it is assumed that κ>κ lim , optimize water distribution for indirect cooling towers;

[0086] The average ventilation volume W of each sector is obtained from the above calculation i Total ventilation volume of the indirect cooling tower W tot The ratio Z i :

[0087] Z i =W i / W tot

[0088] The preliminary optimized flow rate of circulating water in each sector is obtained Right now:

[0089]

[0090] in, is the initial optimized flow of sector i, Z i is the ratio of the current ventilation volume of sector i to the total ventilation volume, q tot is the total circulating water flow of the unit;

[0091] if Less than the maximum flow capacity Q of the sector branch max ,but

[0092]

[0093] If a Greater than the maximum flow capacity Q of the sector branch max ,but

[0094]

[0095] Among them, the subscript 1rei Indicates the initial optimized flow with the largest value. The final target flow of each sector can be obtained by analogy.

[0096] In this embodiment, refer to Figure 4 The main pipe is divided into several sections according to the number of sectors in the intercooler tower. Each branch pipe corresponds to one sector. An electric regulating gate and electromagnetic flowmeter are installed on each circulating water inlet branch pipe. The circulating water flow of each sector is controlled by adjusting the opening of the regulating gate, so that the flow of each sector can be adjusted to the optimized target flow. The opening of the electric regulating gate is adjustable from 0% to 100%, and the installation position is after the original temperature and pressure measuring point of the circulating water branch pipe.

[0097] In this embodiment, the measured data output by all measuring points (such as Va ' 2ni , t a1n , t a2n etc.) are all preset time t lim Average value within, preset value t lim and κ lim It can be determined according to different site environments and operating conditions.

[0098] Example 2

[0099] See Figure 5 This embodiment provides a water distribution optimization system for reducing the impact of crosswind on the performance of intercooler towers, including:

[0100] The data acquisition module is used to collect the inlet and outlet air temperatures, outlet wind speed, circulating water inlet branch flow of each sector of the intercooler to be tested, and the local measured atmospheric pressure;

[0101] The first calculation module is used to calculate the average air density entering each sector of the intercooling tower based on the inlet and outlet air temperatures of each sector and the local measured atmospheric pressure;

[0102] The second calculation module is used to calculate the average outlet wind speed of each sector of the intercooling tower according to the outlet wind speed and outlet wind direction of each sector;

[0103] The third calculation module is used to calculate the average ventilation volume of each sector within a preset time and the total ventilation volume of the intercooling tower according to the average air density and average wind speed of each sector;

[0104] The judgment module is used to determine whether the intercooler is in a windless or weak wind environment based on the calculated average ventilation volume of each sector, and to maintain equal water distribution in the intercooler; when the intercooler is in a crosswind environment, water distribution optimization is performed;

[0105] The fourth calculation module is used to calculate the total circulating water flow of the unit within a preset time based on the collected circulating water inlet branch flow of each sector, and calculate the preliminary optimized flow of each sector after optimization by combining the ratio of the average ventilation volume to the total ventilation of the intercooling tower;

[0106] The identification module is used to compare the preliminary optimized flow rate with the maximum flow capacity of each sector branch. When the preliminary optimized flow rate is less than the maximum flow capacity of the sector, the preliminary optimized flow rate is the final target flow rate. When a certain preliminary optimized flow rate is greater than the maximum flow capacity of the branch, the part of the flow exceeding the maximum flow capacity is distributed in sequence according to the size of the optimized flow rate to obtain the final target flow rate, so as to ensure that the final target flow rate is within the maximum flow capacity of each sector.

[0107] The regulation module adjusts the circulating water flow of each sector by adjusting the opening of the electric door of each branch pipe according to the final target flow, and adjusts each sector in the order of target flow from small to large. If the deviation between the instantaneous flow of the branch pipe with smaller flow and the target flow is not greater than a predetermined value, the valve position of the electric door of this section stops changing, and the adjustment of the next sector with larger flow is carried out. And so on, so as to achieve the final target flow calculated by the system for the water inlet flow of each sector.

[0108] Example 3

[0109] This embodiment provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it implements the steps of the water distribution optimization method for reducing the impact of side wind on the performance of intercooler towers.

[0110] It will be understood by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0111] The present invention is described with reference to flowcharts and / or block diagrams of methods, systems, and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A system that specifies the functions of a box or boxes.

[0112] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0113] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0114] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all points of view, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0115] In addition, it should be understood that although this specification describes the embodiments, not every embodiment contains only one independent technical solution. This description is for clarity only. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for the purpose of illustrating the technical concept of the present invention and cannot be used to limit the scope of protection of the present invention. Any changes made based on the technical solution in accordance with the technical concept proposed by the present invention fall within the scope of protection of the claims of the present invention.

Claims

1. A water distribution optimization method for reducing the impact of crosswind on the performance of intercooling towers, characterized in that: include: Collect the inlet and outlet air temperature, outlet wind speed, outlet wind direction of each sector of the intercooler to be tested, the flow rate of the circulating water inlet branch pipe of each sector, and the local measured atmospheric pressure; According to the inlet and outlet air temperatures of each sector and the local measured atmospheric pressure, the average air density entering each sector of the intercooler is calculated; According to the outlet wind speed and outlet wind direction of each sector, the average outlet wind speed of each sector of the intercooling tower is calculated; According to the average air density and average wind speed of each sector, the average ventilation volume of each sector within the preset time and the total ventilation volume of the intercooling tower are calculated; Based on the calculated average ventilation volume of each sector, if the intercooler is in a windless or weak wind environment, the intercooler maintains equal water distribution; if the intercooler is in a crosswind environment, water distribution optimization is performed. Based on the collected circulating water inlet branch flow of each sector, the total circulating water flow of the unit within the preset time is calculated. Combined with the ratio of the average ventilation volume to the total ventilation of the intercooler, the preliminary optimized flow of each sector after optimization is calculated; Compare the initial optimized flow rate with the maximum flow capacity of each sector branch. If the initial optimized flow rate is less than the maximum flow capacity of the sector, the initial optimized flow rate will be the final target flow rate. When a certain preliminary optimized flow rate is greater than the maximum flow capacity of the branch pipe, the part of the flow that exceeds the maximum flow capacity will be distributed in sequence according to the size of the optimized flow rate to obtain the final target flow rate, so as to ensure that the final target flow rate is within the maximum flow capacity of each sector.

2. The water distribution optimization method for reducing the impact of crosswind on the performance of intercooling towers according to claim 1, characterized in that: Collect the inlet and outlet air temperatures, outlet wind speed, and circulating water inlet branch flow of each sector of the intercooler to be tested, as well as the local measured atmospheric pressure, including: Temperature measuring points are installed on the inlet and outlet sides of the fin tube bundles in each sector of the intercooler, and wind speed measuring points are installed on the outlet side. Flow meters and valves are installed on the water inlet branches of each sector to collect and control the circulating water flow in each sector.

3. The water distribution optimization method for reducing the impact of crosswind on the performance of intercooling towers according to claim 2, characterized in that: The temperature measurement points are arranged with platinum resistance cables, the wind speed measurement points use ultrasonic wind speed and direction sensors, the flow meter uses electromagnetic flow meter, and the valve uses electric door.

4. The water distribution optimization method for reducing the impact of crosswind on the performance of intercooling towers according to claim 1 is characterized in that: Based on the average air density and average air outlet speed of each sector, the average ventilation volume of each sector within the preset time and the total ventilation volume of the indirect cooling tower are calculated as follows: Among them, W i is the average ventilation volume of sector i, is the average wind speed of sector i, A f is the windward area of ​​the fin tube bundle, is the calculated average air density entering sector i, W tot is the total ventilation volume of the intercooler.

5. The water distribution optimization method for reducing the impact of crosswind on the performance of intercooling towers according to claim 4 is characterized in that: Based on the collected circulating water inlet branch flow of each sector, the total circulating water flow of the unit within the preset time is calculated. Combined with the ratio of the average ventilation volume to the total ventilation of the intercooler, the preliminary optimized flow of each sector after optimization is calculated as follows: in, Initially optimize the traffic for sector i, Z i is the average ventilation volume of each sector W i Total ventilation volume of the indirect cooling tower W tot The ratio, q tot is the total circulating water flow of the unit.

6. The water distribution optimization method for reducing the impact of crosswind on the performance of intercooling towers according to claim 5, characterized in that: When a certain initial optimized flow rate is greater than the maximum flow capacity of the branch pipe, the flow exceeding the maximum flow capacity will be distributed in sequence according to the size of the optimized flow rate to obtain the final target flow rate, as follows: Among them, Q max is the maximum flow capacity of the branch pipe, 1rei Indicates the initial optimized flow with the largest value. The final target flow of each sector can be obtained by analogy.

7. A water distribution optimization system for reducing the impact of crosswind on the performance of intercooler towers, characterized in that: include: The data acquisition module is used to collect the inlet and outlet air temperatures, outlet wind speed, circulating water inlet branch flow of each sector of the intercooler to be tested, and the local measured atmospheric pressure; The first calculation module is used to calculate the average air density entering each sector of the intercooling tower based on the inlet and outlet air temperatures of each sector and the local measured atmospheric pressure; The second calculation module is used to calculate the average outlet wind speed of each sector of the intercooling tower according to the outlet wind speed and outlet wind direction of each sector; The third calculation module is used to calculate the average ventilation volume of each sector within a preset time and the total ventilation volume of the intercooling tower according to the average air density and average wind speed of each sector; The judgment module is used to determine whether the intercooler is in a windless or weak wind environment based on the calculated average ventilation volume of each sector, and to maintain equal water distribution in the intercooler; when the intercooler is in a crosswind environment, water distribution optimization is performed; The fourth calculation module is used to calculate the total circulating water flow of the unit within a preset time based on the collected circulating water inlet branch flow of each sector, and calculate the preliminary optimized flow of each sector after optimization by combining the ratio of the average ventilation volume to the total ventilation of the intercooling tower; The identification module is used to compare the preliminary optimized flow rate with the maximum flow capacity of each sector branch. When the preliminary optimized flow rate is less than the maximum flow capacity of the sector, the preliminary optimized flow rate is the final target flow rate; When a certain preliminary optimized flow rate is greater than the maximum flow capacity of the branch pipe, the part of the flow that exceeds the maximum flow capacity will be distributed in sequence according to the size of the optimized flow rate to obtain the final target flow rate, so as to ensure that the final target flow rate is within the maximum flow capacity of each sector.

8. The water distribution optimization system for reducing the impact of crosswind on intercooler performance according to claim 7, characterized in that: In the third calculation module, the average ventilation volume of each sector within the preset time and the total ventilation volume of the indirect cooling tower are calculated based on the average air density and average outlet wind speed of each sector, as follows: Among them, W i is the average ventilation volume of sector i, is the average wind speed of sector i, A f is the windward area of ​​the fin tube bundle, is the calculated average air density entering sector i, W tot is the total ventilation volume of the intercooler.

9. The water distribution optimization system for reducing the impact of crosswind on intercooler performance according to claim 8, characterized in that: In the fourth calculation module, the total circulating water flow of the unit within the preset time is calculated based on the collected circulating water inlet branch flow of each sector. Combined with the ratio of the average ventilation volume to the total ventilation of the intercooler, the preliminary optimized flow of each sector after optimization is calculated as follows: in, Initially optimize the traffic for sector i, Z i is the average ventilation volume of each sector W i Total ventilation volume of the indirect cooling tower W tot The ratio, q tot is the total circulating water flow of the unit.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of a water distribution optimization method for reducing the impact of side wind on the performance of an intercooler according to any one of claims 1 to 6.

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