Outlet density Froude number monitoring system, method, electronic equipment and storage medium
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- INNER MONGOLIA HELIN POWER GENERATION CO LTD
- Filing Date
- 2025-09-17
- Publication Date
- 2026-06-09
AI Technical Summary
【0016】 本開示の実施例に基づき、出口密度フルード数監視システム及び方法を提案し、この監視システムは、冷却塔に用いられ、この監視システムは、冷却塔の排出空気の気温をテストするための温度計であって、排出空気の気温の測定点が冷却塔のスロート部に配置される、温度計と、冷却塔の排出空気の流速をテストするための羽根車風速計であって、排出空気の流速の測定点が排出空気の気温の測定点の配置と同じである、羽根車風速計と、冷却塔の吸入空気のパラメータをテストするための気象ステーションであって、吸入空気のパラメータの測定点が冷却塔の吸気口に配置される、気象ステーションと、データ線を介して気象ステーション、温度計及び羽根車風速計にそれぞれ接続され、排出空気の気温、排出空気の流速と吸入空気のパラメータのテストデータを収集して信号変換し、産業用コンピュータに伝送するためのデータ収集カードと、データ線を介してデータ収集カードに接続され、排出空気の気温、排出空気の流速と吸入空気のパラメータのテストデータに基づいて冷却塔の出口密度フルード数を決定し、冷却塔の出口密度フルード数を出力するための産業用コンピュータとを含む。このシステム及び方法は、構造が簡単であり、実施しやすく、冷却塔の出口密度フルード数を正確に監視することができ、冷却塔の出口流動状態の予報と防護にデータサポートを提供している。
Smart Images
Figure 2026094016000001_ABST
Abstract
Claims
1. An outlet density Froude number monitoring system used in a cooling tower, A thermometer for testing the temperature of the exhaust air from the cooling tower, wherein the temperature measurement point of the exhaust air is located in the throat portion of the cooling tower. An impeller anemometer for testing the flow velocity of the exhaust air from the cooling tower, wherein the measurement points for the flow velocity of the exhaust air are arranged in the same way as the measurement points for the temperature of the exhaust air, A weather station for testing the parameters of the intake air of the cooling tower, wherein the measurement point for the parameters of the intake air is located at the intake port of the cooling tower. A data acquisition card is connected via data lines to the weather station, thermometer, and impeller anemometer, respectively, to collect test data of the temperature of the exhaust air, the flow velocity of the exhaust air, and the parameters of the intake air, convert them into signals, and transmit them to an industrial computer. An outlet density Frode number monitoring system characterized by including an industrial computer connected via a data line to the data acquisition card, which determines the outlet density Frode number of the cooling tower based on test data of the temperature of the exhaust air, the flow velocity of the exhaust air, and the parameters of the intake air, and outputs the outlet density Frode number of the cooling tower.
2. The monitoring system according to claim 1, characterized in that the temperature measurement points of the exhaust air are evenly arranged on any two mutually perpendicular diameters of the cross-section of the cooling tower throat in the manner of an equal-area ring.
3. The monitoring system according to claim 2, characterized in that the measurement points for the intake air parameters are evenly arranged along the circumferential direction of the intake port.
4. A method for monitoring the Froude number of the outlet density of a cooling tower, To obtain test data on the temperature of the exhaust air from the cooling tower, the flow velocity of the exhaust air, and the parameters of the intake air, A monitoring method characterized by determining the outlet density Frode number of the cooling tower based on test data of the temperature of the exhaust air, the flow velocity of the exhaust air, and the parameters of the intake air, and outputting the outlet density Frode number of the cooling tower.
5. Determining the outlet density fluid number of the cooling tower based on the test data of the temperature of the exhaust air, the flow velocity of the exhaust air, and the parameters of the intake air is, Based on the test data of the intake air parameters, the density and moisture content of the intake air of the cooling tower are determined. Based on test data of the moisture content of the intake air and the temperature of the exhaust air, the density of the exhaust air from the cooling tower is determined. Based on the test data of the exhaust air flow velocity, the average flow velocity of the exhaust air at the cooling tower outlet cross-section is determined. The method according to claim 4, characterized in that it includes determining the outlet density Froude number of the cooling tower based on the density of the intake air, the density of the exhaust air, and the average flow velocity of the exhaust air at the cooling tower outlet cross-section.
6. The test data for the intake air parameters includes the dry-bulb temperature, relative humidity, and atmospheric pressure of the intake air at each measurement point, and determining the density and moisture content of the intake air of the cooling tower based on the intake air parameters is as follows: The average value of the dry-bulb temperature of the intake air at each of the aforementioned measurement points is determined to obtain a first temperature, and the average value of the relative humidity of the intake air at each of the aforementioned measurement points is determined to obtain a first humidity. The K-type temperature of the first temperature is obtained, and the saturated vapor pressure corresponding to the K-type temperature is calculated according to the Goff-Gratch method, The product of the saturated vapor pressure and the first humidity is determined as the pressure corresponding to the water vapor in the inhaled humidified air, The method according to claim 5, characterized in that it includes determining the density of the inhaled air and the amount of moisture in the inhaled air based on the pressure corresponding to the water vapor in the inhaled humidified air, the K temperature, and the atmospheric pressure.
7. The test data for the temperature of the exhaust air includes the dry-bulb temperature of the exhaust air at each measurement point, and the density of the exhaust air from the cooling tower is determined based on the moisture content of the intake air and the test data for the temperature of the exhaust air. The average value of the dry-bulb temperature of the exhaust air at each of the aforementioned measurement points is calculated to obtain a second temperature. Based on the moisture content of the intake air and the second temperature, the pressure corresponding to the water vapor in the discharged humidified air is determined, The method according to 6, characterized in that it includes determining the density of the discharged air based on the pressure corresponding to the water vapor in the discharged humidified air and the atmospheric pressure.
8. The test data for the exhaust air velocity includes the exhaust air velocity at the cross-section of the cooling tower throat at each measurement point, and determining the average exhaust air velocity at the cooling tower outlet cross-section based on the test data for the exhaust air velocity is as follows: The average value of the exhaust air velocity at the cross-section of the cooling tower throat at each of the aforementioned measurement points is determined to obtain a first flow velocity. The method according to claim 5, characterized in that it includes obtaining the average flow velocity of the exhaust air at the outlet cross-section of the cooling tower based on the throat diameter, outlet diameter, and the first flow velocity of the cooling tower.
9. It is an electronic device, At least one processor, Includes memory that communicates with at least one processor, 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, causing the at least one processor to perform the method according to any one of claims 4 to 8.
10. A non-temporary computer-readable storage medium in which computer instructions are stored, wherein the computer instructions are used to cause the computer to perform the method described in any one of claims 4 to 8.