A cooling water tower air inlet wind speed control system and air inlet wind speed control method

Abstract

The application relates to a cooling water tower air inlet wind speed control system and an air inlet wind speed control method. The system comprises a wind measurement system and a water curtain system. The water curtain system comprises a wind speed adjusting system and a water curtain recovery system. The wind speed adjusting system comprises a water outlet pipe connected with the cooling water tower. A flow guide curtain storage device is arranged below the water outlet pipe. A flow guide curtain is arranged in the flow guide curtain storage device. A flow guide curtain guide device is arranged below the water outlet pipe and close to one side of the water outlet. The flow guide curtain guide device is connected with the flow guide curtain. The water curtain recovery system comprises a recovery water pool and a recovery pipeline. The recovery water pool is connected with the recovery pipeline below. The recovery pipeline is connected with the cooling water tower. The wind measurement system comprises a wind speed sensor and a wind direction sensor. The wind measurement system transmits wind speed data and wind direction data to software. The software controls the guiding direction of the flow guide curtain and the water outlet amount of the water outlet pipe in the wind speed adjusting system. The water outlet pipe flows into the recovery water pool and then flows into the cooling water tower through the recovery pipeline.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooling water tower air intake, in particular to a cooling water tower air intake wind speed control system and method. BACKGROUND

[0002] Now in the operation process of high cooling tower, the heat and mass transfer between circulating water and air in the tower is divided into three parts, namely, water distribution area, filler area and high rain area. When the environmental wind speed is 4 m / s, the phenomenon of draught begins to appear. That is, a part of the wind from a certain area of the high rain area enters the cooling tower without heat exchange, but directly flows out from the direction of 180° to the air intake area. The greater the environmental wind speed, the more draught. SUMMARY

[0003] Therefore, the technical problem to be solved by the present application is to overcome the defect that the environmental wind from a certain area of the high rain area enters the cooling tower without heat exchange to form draught, thereby providing a cooling water tower air intake wind speed control system and method.

[0004] A cooling water tower air intake wind speed control system comprises a plurality of wind measurement systems and a plurality of water curtain systems. The plurality of water curtain systems are evenly distributed around the cooling water tower, and the plurality of wind measurement systems are evenly distributed outside the water curtain systems.

[0005] The water curtain system comprises a wind speed adjusting system and a water curtain recovery system. The wind speed adjusting system comprises a water outlet pipe connected to the cooling water tower. A flow guide curtain storage device is arranged below the water outlet pipe, and a flow guide curtain is arranged in the flow guide curtain storage device. A flow guide curtain guide device is arranged on one side of the water outlet pipe below the water outlet pipe and close to the water outlet. The flow guide curtain guide device is connected with the flow guide curtain. The water curtain recovery system comprises a recovery water tank and a recovery pipeline. The recovery water tank is connected with the recovery pipeline below, and the recovery pipeline is connected with the cooling water tower. The water curtain recovery system is located below the wind speed adjusting system.

[0006] The wind measurement system comprises a wind speed sensor and a wind direction sensor. The wind speed sensor measures the wind speed, and the wind direction sensor measures the wind direction. The wind measurement system transmits the measured wind speed data and wind direction data to the software for analysis and processing. According to the analysis result, the software controls the guide direction of the flow guide curtain and the water outlet amount of the water outlet pipe in the wind speed adjusting system. The water flowing out of the water outlet pipe is recovered by the recovery water tank and flows into the cooling water tower through the recovery pipeline.

[0007] Further, the wind measurement system and the water curtain system are each provided with eight, and are respectively arranged in the east, south, west, north, southeast, northeast, southwest and northwest of the cooling water tower.

[0008] Further, the wind speed regulating system in the wind speed measuring system and the water curtain system is provided with at least one layer, and the wind speed measuring system and the wind speed regulating system in each layer are the same, and the uppermost layer is the first layer.

[0009] Further, the recycling pool is a circular pool, and the radius is greater than the length of the water outlet pipe.

[0010] Further, the recycling pool is an underground pool.

[0011] Further, the system further comprises a fence, and the fence is a circular ring, and the diameter is greater than the diameter of the recycling pool.

[0012] Further, the water outlet pipe and the recycling pipeline are provided with frequency conversion electric pumps at the ends connected with the cooling water tower.

[0013] A wind speed control method of the cooling water tower wind speed control system according to any one of the above, comprising the following steps:

[0014] S1: The wind speed measuring system is used to monitor the wind speed and direction around the cooling water tower in a gradient mode, and the monitored wind direction data and wind speed data are transmitted to the software and processed;

[0015] S2: The software analyzes the processed wind direction data, judges the guide of the guide curtain guide device, and controls the guide curtain guide device to extend to the appropriate guide position;

[0016] S3: The software analyzes the processed wind speed data, judges the number of layers of the wind speed regulating system that need to be opened, and opens the wind speed regulating system;

[0017] S4: The frequency conversion electric pump at the water outlet pipe is opened to supply water to the wind speed regulating system;

[0018] S5: The water flow of the wind speed regulating system is controlled according to the wind speed, so as to ensure that the wind speed value entering the cooling water tower is within the specified range;

[0019] S6: After the water flowing out of the wind speed regulating system is recycled by the recycling pool, the frequency conversion electric pump (9) at the recycling pipeline is opened to re-inject water into the cooling water tower.

[0020] Further, the step judgment process is specifically: when the wind speed of each layer measured by the wind speed measuring system is greater than 4 m / s and the wind speed deviation of each layer is less than 4 m / s, the first layer wind speed regulating system is opened, if the wind speed measured by the second layer wind speed measuring system is greater than 4 m / s of the first layer, the first layer wind speed regulating system and the second layer wind speed regulating system are opened at the same time, and the other layers are the same.

[0021] Further, the specified range of the wind speed is less than 4 m / s and greater than 0 m / s.

[0022] The present application monitors the wind speed and direction of the environmental wind according to the wind monitoring system, and the water in the water tower is discharged in the form of water curtain through the cooperation of the guide curtain and the guide curtain guiding device in the wind speed adjusting system, so as to shield the environmental wind, and the water is also cooled, the disturbance of the environmental wind to the airflow in the high cooling tower is reduced, and the water is recycled to the cooling tower through the water curtain recycling system, forming a cycle; the present application controls the water outlet amount of the water outlet pipe and the water inlet amount of the cooling water tower through two frequency conversion electric pumps, so as to meet the demand for water flow under various wind speeds, and the frequency conversion electric pump is remotely controlled through software, which is convenient to operate. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 The structure diagram of the control water tower air inlet system in the embodiment of the present application is shown in the figure.

[0025] Explanation of reference signs:

[0026] 1- water outlet pipe; 1.1- water outlet; 2- guide curtain storage device;

[0027] 3- guide curtain; 4- guide curtain guiding device; 5- recovery water tank;

[0028] 6- recovery pipeline; 7- wind speed sensor; 8- wind direction sensor;

[0029] 9- frequency conversion electric pump; 10- cooling water tower; 11- fence; DETAILED DESCRIPTION

[0030] The technical solutions of the present application will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application.

[0031] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict between them.

[0034] Please refer to Figure 1 A cooling water tower air inlet velocity control system, comprising a plurality of wind measuring systems and a plurality of water curtain systems; a plurality of said water curtain systems are evenly distributed around the cooling water tower 10, and a plurality of said wind measuring systems are evenly distributed outside the water curtain system;

[0035] The water curtain system comprises a wind speed adjusting system and a water curtain recovery system; the wind speed adjusting system comprises a water outlet pipe 1, the water outlet pipe 1 is connected with the cooling water tower 10, a flow guide curtain storage device 2 is arranged below the water outlet pipe 1, a flow guide curtain 3 is arranged in the flow guide curtain storage device 2, a flow guide curtain guide device 4 is arranged below the water outlet pipe 1 and close to one side of the water outlet 1.1, and the flow guide curtain guide device 4 is connected with the flow guide curtain 3 in a matched mode; the water curtain recovery system comprises a recovery water pool 5 and a recovery pipeline 6, the recovery water pool 5 is connected with the recovery pipeline 6 below, and the recovery pipeline 6 is connected with the cooling water tower 10; the water curtain recovery system is located below the wind speed adjusting system;

[0036] The wind measuring system comprises a wind speed sensor 7 and a wind direction sensor 8, the wind speed sensor 7 measures the wind speed, the wind direction sensor 8 measures the wind direction, the wind measuring system transmits the measured wind speed data and wind direction data to the software for analysis and processing, the software controls the guide direction of the flow guide curtain 3 and the water outlet amount of the water outlet pipe 1 in the wind speed adjusting system according to the analysis result, the water flowing out of the water outlet pipe 1 is recovered by the recovery water pool 5 and flows into the cooling water tower 10 through the recovery pipeline 6.

[0037] The wind measuring system and the water curtain system are both provided with eight, and are respectively arranged in the east, south, west, north, southeast, northeast, southwest and northwest of the cooling water tower 10.

[0038] The wind speed adjusting system in the wind measuring system and the water curtain system is at least provided with one layer, the wind measuring system and the wind speed adjusting system in each layer are the same, the uppermost layer is the first layer, the embodiment in the figure is two layers, and the number of layers is set according to actual needs.

[0039] The recycling pool 5 is a circular pool, and the radius is greater than the length of the water outlet pipe 1.

[0040] The recycling pool 5 is an underground pool.

[0041] The system further comprises a fence 11, and the fence 11 is a circular ring, and the diameter is greater than the diameter of the recycling pool 5.

[0042] The end, connected with the cooling water tower 10, of the water outlet pipe 1 and the end, connected with the cooling water tower 10, of the recycling pipeline 6 are both provided with a variable frequency electric pump 9, and the two variable frequency electric pumps 9 control the water outlet quantity of the water outlet pipe 1 and the water inlet quantity of the cooling water tower 10 respectively.

[0043] In actual application, a simulation model of the system needs to be established according to the scale of the drawing, after the model is established, the simulation model is simulated by the wind tunnel system to carry out the air inlet test, the water outlet quantity required by the wind speed adjusting system of the corresponding environmental wind speed is calculated, after the calculation is completed, the simulation model is enlarged to the physical system according to the scale, and the water outlet data of the wind speed adjusting system is fitted for many times according to the calculation result and the actual use effect, and the final parameters are set.

[0044] The application also comprises an air inlet wind speed control method based on the air inlet wind speed control system of any one of the above.

[0045] S1: the wind measuring system is used for gradient monitoring of the environmental wind speed and wind direction around the cooling water tower, and the monitored environmental wind direction data and wind speed data are transmitted to the software and processed;

[0046] S2: the software analyzes the processed wind direction data, judges the guidance of the guide curtain guide device 4, and controls the guide curtain guide device 4 to extend to the appropriate guide position;

[0047] S3: the software analyzes the processed wind speed data, judges the number of layers needing to open the wind speed adjusting system, and opens the wind speed adjusting system;

[0048] S4: the variable frequency electric pump 9 at the water outlet pipe 1 is opened to supply water to the wind speed adjusting system;

[0049] S5: According to the wind speed size control wind speed regulation system water flow, ensure that the wind speed value into the cooling tower in the specified range;

[0050] S6: The water of the wind speed regulation system is recycled by the recycling pool 5, and then the frequency conversion electric pump 9 at the recycling pipeline 6 is opened to inject the water into the cooling tower.

[0051] Further, the step judgment process is specifically: when the wind speed of each layer measured by the wind speed measurement system is greater than 4 m / s and the wind speed deviation of each layer is less than 4 m / s, the first layer wind speed regulation system is opened; if the wind speed measured by the second layer wind speed measurement system is greater than 4 m / s than the first layer, the first layer wind speed regulation system and the second layer wind speed regulation system are opened at the same time, and the other layers are the same.

[0052] Further, the specified range of the wind speed is less than 4 m / s and greater than 0 m / s.

[0053] Obviously, the above embodiments are only examples for clearly illustrating, but not limit the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A cooling tower inlet air speed control system, characterized in that, It includes multiple wind measurement systems and multiple water curtain systems; the multiple water curtain systems are evenly distributed around the cooling tower (10), and the multiple wind measurement systems are evenly distributed outside the water curtain systems; The water curtain system includes a wind speed regulation system and a water curtain recovery system; the wind speed regulation system includes a water outlet pipe (1), which is connected to a cooling tower (10), and a guide curtain storage device (2) is provided below the water outlet pipe (1). A guide curtain (3) is provided inside the guide curtain storage device (2). A guide curtain guiding device (4) is provided below the water outlet pipe (1) and on the side near the water outlet (1.1). The guide curtain guiding device (4) is connected to the guide curtain (3); the water curtain recovery system includes a recovery water tank (5) and a recovery pipeline (6). The recovery water tank (5) is connected to the recovery pipeline (6) below, and the recovery pipeline (6) is connected to the cooling tower (10); the water curtain recovery system is located below the wind speed regulation system; The wind measurement system includes a wind speed sensor (7) and a wind direction sensor (8). The wind speed sensor (7) measures the wind speed and the wind direction sensor (8) measures the wind direction. The wind measurement system transmits the measured wind speed data and wind direction data to the software for analysis and processing. Based on the analysis results, the software controls the guiding direction of the guide curtain (3) in the wind speed regulation system and the water output of the outlet pipe (1). The water flowing out of the outlet pipe (1) is recycled by the recycling pool (5) and flows into the cooling tower (10) through the recycling pipeline (6). The wind measurement system and the wind speed regulation system in the water curtain system are each provided with at least one layer. The wind measurement system and the wind speed regulation system in each layer have the same structure, and the top layer is the first layer. When the wind speed measured by the wind measurement system on each floor is greater than 4 m / s and the wind speed deviation between each floor is less than 4 m / s, the wind speed adjustment system on the first floor is turned on. If the wind speed measured by the wind measurement system on the second floor is greater than 4 m / s on the first floor, the wind speed adjustment systems on the first and second floors are turned on at the same time. The same applies to other floors.

2. The system according to claim 1, characterized in that, The wind measurement system and the water curtain system are each provided in eight parts, and are respectively located in the east, south, west, north, southeast, northeast, southwest and northwest of the cooling water tower (10).

3. The system according to claim 1, characterized in that, The recycling pool (5) is a circular pool with a radius greater than the length of the outlet pipe (1).

4. The system according to claim 3, characterized in that, The recycling pool (5) is an underground pool.

5. The system according to claim 4, characterized in that, The system also includes a fence (11) which is circular and has a diameter larger than that of the recycling pool (5).

6. The system according to claim 1, characterized in that, The outlet pipe (1) connected to the cooling tower (10) and the recovery pipe (6) connected to the cooling tower (10) are both equipped with variable frequency electric pumps (9). The two variable frequency electric pumps (9) control the water output of the outlet pipe (1) and the water inlet of the cooling tower (10) respectively.

7. A method for controlling the inlet air velocity of a cooling tower based on the cooling tower inlet air velocity control system according to any one of claims 1-6, characterized in that, Includes the following steps: S1: The wind speed and direction around the cooling tower are monitored in a gradient manner through the wind measurement system, and the monitored wind direction and wind speed data are transmitted to the software for processing. S2: The software analyzes the processed wind direction data, determines the direction of the deflector curtain guiding device (4), and controls the deflector curtain guiding device (4) to extend to a suitable guiding position; S3: The software analyzes the processed wind speed data, determines the number of floors where the wind speed regulation system needs to be activated, and then activates the wind speed regulation system. S4: Water is supplied to the wind speed regulation system by turning on the variable frequency electric pump (9) at the control outlet pipe (1); S5: Control the water flow of the wind speed regulation system according to the wind speed to ensure that the wind speed entering the cooling tower is within the specified range; S6: After the water flowing out of the wind speed regulation system is recovered by the recovery water tank (5), the variable frequency electric pump (9) at the recovery pipeline (6) is turned on to make the water re-injected into the cooling tower.

8. The method according to claim 7, characterized in that, The specified wind speed range is less than 4 m / s and greater than 0 m / s.

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