Device and method for detecting water spraying amount of cooling tower

Abstract

The invention provides a cooling tower water spraying amount detection device and method, and belongs to the field of cooling tower water spraying amount detection, and the method comprises a water amount measurement cylinder which is used for receiving spraying water of a cooling tower water collection pool; the laser receiving and transmitting module is arranged in the water quantity measuring cylinder and is used for transmitting and receiving laser beams penetrating through water drops; the rotary scanning module is arranged on the outer wall of the water surface of the water quantity measuring cylinder and comprises a laser rotary fixer and a water collecting tank laser transceiver, and the laser rotary fixer drives the water collecting tank laser transceiver to rotate according to a preset angle; and the impeller module is arranged on a water flow path in the water quantity measuring cylinder, is positioned below the laser receiving and transmitting module, and comprises an impeller and a counter, the impeller is driven by water flow to rotate, and the counter records the rotation times of the impeller. Therefore, the accuracy, efficiency and convenience of detection of the water spraying amount of the cooling tower can be remarkably improved.

Description

Technical Field

[0001] The present invention belongs to the field of cooling tower water spray volume detection, and particularly relates to a cooling tower water spray volume detection device and method. Background Art

[0002] As a commonly used temperature control device in industrial production processes, a cooling tower realizes heat exchange through the contact between water and air, cools the heat in the production process, and ensures the temperature required for production. The cooling tower pumps the water in the sump to the spray system through a water pump to spray the packing to form a water film, and the water after heat exchange falls into the sump to realize water volume circulation. If the water spray volume is too small, the water film on the packing is too thin, and the heat exchange effect is poor; if the water spray volume is too large, a water bridge is formed in the air passage, blocking the passage and hindering heat exchange. Therefore, scientifically and reasonably detecting the water spray volume of the cooling tower is crucial for the normal operation of the cooling tower and thus ensuring the temperature required for production.

[0003] Currently, the water spray volume of most cooling towers is calculated through the water spray density. The water spray density is measured according to the method in the Electric Power Industry Standard "Test Regulations for Industrial Cooling Towers". The water volume is measured on the water surface of the cooling tower sump using a water collection container or an automatic counting tipping rain gauge. The number of measuring lines is not less than 4, and the number of measuring points on each measuring line is not less than 6. The water spray density measurement is usually carried out by arranging multiple floating bodies on the water surface of the sump for fixed measurement or by a mobile hull cruising for dynamic measurement. For example, the patent "CN202011173884.2 A Measuring System for the Water Spray Density and the Water Temperature Distribution after Cooling of a Cooling Tower Group" can be found in the literature, which uses a floating sensor platform and a tipping rain gauge for fixed measurement of the water spray volume at multiple measuring points. However, in the actual production detection process, the uneven distribution of the cooling tower water spray will seriously affect the floating body positioning accuracy and the water spray volume detection, and the accuracy of the detection result is poor.

[0004] Therefore, due to the uneven distribution of the cooling tower water spray, there are great defects in the multi-point detection method of the cooling tower water spray volume in the prior art, and the accuracy of the obtained water spray volume measurement result is poor. Summary of the Invention

[0005] In order to solve the problem of poor accuracy of the detection result of the cooling tower water spray volume caused by multi-point detection, the present invention provides a cooling tower water spray volume detection device and method.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] First, a cooling tower water spray volume detection device is provided. The device includes:

[0008] A water volume measuring cylinder (1) for receiving the spray water from the cooling tower sump;

[0009] The laser transceiver module (3) is disposed inside the water volume measuring cylinder (1) and is used to emit and receive a laser beam passing through water droplets.

[0010] The rotation scanning module is disposed on the outer wall of the water volume measuring cylinder (1) on the water surface and includes a laser rotation fixator (4) and a sump laser transceiver (5). The laser rotation fixator (4) drives the sump laser transceiver (5) to rotate at a preset angle.

[0011] The impeller module is disposed on the water flow path inside the water volume measuring cylinder (1) and below the laser transceiver module (3), and includes an impeller (7) and a counter (6). The impeller is driven by water flow to rotate, and the counter (6) records the number of rotations of the impeller (7).

[0012] Optionally, the lower end of the water volume measuring cylinder (1) is open, and the sprayed water enters through the upper port and sequentially passes through the laser transceiver module (3) and the impeller module, and flows into the sump from the lower port.

[0013] Optionally, the device further includes a detection floating box (14), which is located at the lower part of the water volume measuring cylinder (1) and is used to carry the water volume measuring cylinder (1).

[0014] Optionally, the device further includes a signal transmission module and a display module;

[0015] The signal transmission module is used to transmit the data of the counter (6) and the laser energy attenuation coefficient to the display module;

[0016] The display module is used to display the flowing water volume, the water volume at each angle, and the total sprayed water volume in real time.

[0017] Optionally, the laser rotation fixator (4) is driven by a transmission motor (401) to automatically rotate at a preset interval time and angle to complete full-angle scanning of the horizontal plane.

[0018] Secondly, a method for detecting the sprayed water volume of a cooling tower is provided, which is applied to the above-mentioned device for detecting the sprayed water volume of a cooling tower, and includes:

[0019] Calculating a first laser energy attenuation coefficient through the energy attenuation amount of the laser beam emitted and received by the laser transceiver module;

[0020] Calculating the flowing water volume of the water volume measuring cylinder through the number of rotations of the impeller;

[0021] Driving the rotation scanning module to measure the second laser energy attenuation coefficient of the full angle of the sump horizontal plane;

[0022] Calculating the total sum of the uneven sprayed water volume in the sump horizontal plane based on the flowing water volume, the first laser energy attenuation coefficient, and the second laser energy attenuation coefficient.

[0023] Optionally, the calculation formula for the water flow rate through the impeller module is:

[0024] Q 筒 = KN;

[0025] where Q 筒 is the water flow rate through the measuring cylinder, K is the impeller flow coefficient, and N is the number of impeller rotations.

[0026] Optionally, calculating the total uneven water shower amount in the horizontal plane of the collecting basin based on the first laser energy attenuation coefficient and the second laser energy attenuation measurement includes:

[0027] Calculating the water amount at each angle in the horizontal plane of the collecting basin through the following formula:

[0028]

[0029] where Q θ is the water amount at angle θ, α θ is the second laser energy attenuation coefficient at angle θ, α 筒 is the first laser energy attenuation coefficient of the water measuring cylinder, Q 筒 is the water flow rate through the measuring cylinder;

[0030] Determining the total uneven water shower amount in the horizontal plane of the collecting basin based on the water amounts at each angle.

[0031] Optionally, the total of the uneven water shower amounts is calculated through an integral formula:

[0032]

[0033] A is the total uneven water shower amount in the horizontal plane, Q(θ) represents the water amount at each angle, and θ represents the angle.

[0034] A cooling tower water shower amount detection device and method provided by the present invention have the following beneficial effects:

[0035] First, by combining laser energy attenuation and impeller rotation counting, the water spraying volume in the cooling tower sump can be accurately measured, avoiding the inaccurate measurement problem caused by uneven water spraying distribution in the traditional method. Second, only by measuring at any point in the sump, the water spraying volume detection of the entire horizontal plane can be realized through the rotary scanning module, avoiding the water surface disturbance and time error brought by multi-point moving detection, and ensuring that the normal operation of the cooling tower during the detection process is not affected. Finally, the laser rotary fixer can quickly rotate at a preset angle to complete the measurement of laser energy attenuation at various angles in the horizontal plane. Combining with the single-point water volume data, the total sum of the uneven water spraying volume in the horizontal plane of the sump can be quickly calculated. In this way, the accuracy, efficiency, and convenience of the water spraying volume detection of the cooling tower can be significantly improved, while reducing the interference to the normal operation of the cooling tower, having broad application prospects and practical value. Brief Description of the Drawings

[0036] To more clearly illustrate the embodiments of the present invention and their design schemes, the accompanying drawings required for this embodiment will be briefly introduced below. The accompanying drawings in the following description are only partial embodiments of the present invention. For those of ordinary skill in the art, other accompanying drawings can be obtained based on these drawings without creative efforts.

[0037] Figure 1 It is a structural block diagram of a cooling tower water spraying volume detection device provided by the present invention according to an exemplary embodiment.

[0038] Figure 2 It is a structural schematic diagram of a laser rotary fixer provided by the present invention according to an exemplary embodiment.

[0039] Figure 3 It is a structural schematic diagram of a pool laser transceiver provided by the present invention according to an exemplary embodiment.

[0040] Figure 4 It is a structural schematic diagram of a display module provided by the present invention according to an exemplary embodiment.

[0041] Figure 5 It is a schematic flow chart of a cooling tower water spraying volume detection method provided by the present invention according to an exemplary embodiment.

[0042] Reference numerals: 1 - water measurement cylinder, 2 - laser fixator, 3 - laser transceiver module, 4 - laser rotation fixator, 401 - drive motor, 402 - drive gear, 403 - signal transmission line, 5 - sump laser transceiver, 501 - laser emitter, 502 - laser entrance and exit, 503 - laser receiver, 504 - plane mirror, 6 - counter, 7 - impeller, 8 - impeller fixator, 9 - signal transmission line, 10 - centralized power supply, 11 - electrical signal conversion device, 12 - signal transceiver, 13 - pusher, 14 - detection float box, 15 - signal transceiver, 16 - display screen, 17 - detection float box direction control key, 18 - data transmission line, 19 - transmission interface, 20 - laser rotation fixator angle control key, 21 - laser on / off key. Detailed implementation manners

[0043] In order to enable those skilled in the art to better understand the technical solution of the present invention and be able to implement it, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0044] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the technical solution of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0045] In addition, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly specified or limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more, and details will not be described herein.

[0046] Based on the attenuation of laser energy and the rotation counting of the impeller, the present invention obtains the amount of sprayed water in the cooling tower sump, and the measurement of the amount of sprayed water on the entire horizontal plane of the sump can be carried out at any point in the sump. Through the single-point water volume and the energy attenuation of the rotating laser, the detection of the uneven amount of sprayed water in the cooling tower sump is realized, providing theoretical and data support for the water volume detection results, which is more scientific, accurate and reasonable. The detection device is small and convenient for installation and operation. It can be installed and used in the sumps of various cooling towers, with strong adaptability, and no water surface disturbance is generated during the detection process, which does not affect the normal operation of the cooling tower.

[0047] The following will, with reference to the accompanying drawings, elaborate on the technical solutions provided by each embodiment of the present invention.

[0048] First of all, the present invention provides a device for detecting the amount of sprayed water in a cooling tower, specifically as Figure 1 shown, including:

[0049] A water volume measuring cylinder 1 for receiving the sprayed water from the cooling tower sump;

[0050] A laser transceiver module 3 is arranged in the water volume measuring cylinder 1 for emitting and receiving a laser beam passing through water droplets;

[0051] An impeller module is arranged on the water flow path in the water volume measuring cylinder 1 and is located below the laser transceiver module 3, including an impeller 7 and a counter 6. The impeller is driven by the water flow to rotate, and the counter 6 records the number of rotations of the impeller 7 to calculate the water volume flowing through;

[0052] A rotary scanning module is arranged on the outer wall of the water volume measuring cylinder 1 on the water surface, including a laser rotary fixture 4 and a sump laser transceiver 5. The laser rotary fixture 4 drives the sump laser transceiver 5 to rotate at a preset angle.

[0053] Among them, the lower end of the water volume measuring cylinder 1 is open, and the sprayed water enters through the upper port and then passes through the laser transceiver module 3 and the impeller module in sequence, and flows into the sump from the lower port. The laser rotary fixture 4 is driven by a transmission motor 401 to automatically rotate at preset intervals and angles to complete a full-angle scan of the horizontal plane.

[0054] The device further includes a detection floating box 14, which is located at the lower part of the water volume measuring cylinder 1 and is used to carry the water volume measuring cylinder 1.

[0055] In addition, the detection device of the present invention further includes a signal transmission module and a display module. The signal transmission module transmits the data of the counter and the laser energy attenuation coefficient to the display module; the display module displays the water volume flowing through, the water volume at each angle and the total amount of sprayed water in real time.

[0056] In one embodiment, as Figure 1As shown in the figure, the detection device of the present invention includes: a water volume measuring cylinder 1, a laser fixer 2, a laser transceiver module 3, a laser rotation fixer 4, a sump laser transceiver 5, a counter 6, an impeller 7, an impeller fixer 8, a signal transmission line 9, a centralized power supply 10, an electrical signal conversion device 11, a signal transceiver 12, a pusher 13, and a detection floating box 14.

[0057] Among them, the detection floating box 14 is made of rubber and has an open lower end. The laser fixer 2 is used to fix the laser transceiver module 3 on the inner wall of the water volume measuring cylinder 1. The impeller fixer 8 is used to fix the impeller 7 inside the water volume measuring cylinder 1. The centralized power supply 10 provides driving power for each module. The pusher 13 is used to push the detection floating box 14 to swim. The spray water in the cooling tower sump enters the measuring cylinder from the upper port of the water volume measuring cylinder 1. The water droplets first pass through the laser beam emitted by the laser transceiver module 3 and absorb the energy of the laser beam. The water droplets have different absorption degrees for the laser energy of different wavelength bands. Among them, the laser from the near-infrared to the mid-infrared band is easily absorbed by the water droplets, and the transmittance is low. The water droplets have less absorption effect on the blue-green band laser, and the transmittance is high. Therefore, green lasers are selected for all the laser transceivers in the present invention. The laser energy attenuation coefficient is obtained through the difference between the emitted and received laser energies. The laser transceiver module 3 emits green laser and receives the attenuated laser energy, and calculates the first laser energy attenuation coefficient α of the water volume measuring cylinder through the energy difference. 筒 .

[0058] Then the water droplets flow through the impeller 7 and cause it to rotate. The counter 6 records the number of rotations of the impeller 7 and transmits it to the electrical signal conversion device 11 through the signal transmission line 9. After conversion, the signal is sent to the signal transceiver 12 of the remote control terminal and the water volume flowing through the measuring cylinder is displayed on the display screen. Finally, the water droplets flow into the sump from the lower port.

[0059] The laser transceiver module 3 emits green laser, and obtains the second laser energy attenuation coefficient α of this angle in the horizontal plane through the difference between the emitted and received laser energies. θ , after the laser rotation fixer 4 outside the water volume measuring cylinder 1 receives the signal sent by the remote control terminal, it can drive the transmission gear to rotate through the transmission motor, adjust the initial angle of the sump laser transceiver 5, and automatically rotate quickly at preset intervals and angles after turning on the switch of the sump laser transceiver 5. Then, through the ratio of the attenuation coefficient and the water volume Q of the measuring cylinder 筒 the water volume Q of this angle in the horizontal plane of the sump is calculated. θ .

[0060] Among them, the structures of the laser rotation fixer 4 and the sump laser transceiver 5 are respectively as Figure 2 and Figure 3As shown in the figure, the laser rotary fixture 4 includes a drive motor 401, a drive gear 402 connected to the laser transceiver 5 in the sump, and a signal transmission line 403; the laser transceiver 5 in the sump includes a laser emitter 501, a laser entrance / exit 502, a laser receiver 503, and a plane mirror 504.

[0061] In addition, the detection device of the present invention further includes a signal transmission module and a display module. The signal transmission module transmits the data of the counter and the laser energy attenuation coefficient to the display module; the display module displays the water flow through, the water volume at each angle, and the total water spray volume in real time.

[0062] Among them, the display module is as Figure 4 shown, and includes a signal transceiver 15, a display screen 16, a detection float box direction control key 17, a data transmission line 18, a transmission interface 19, a laser rotary fixture angle control key 20, and a laser on / off key 21.

[0063] Based on the above detection and calculation results, the uneven water spray volume in the horizontal plane of the cooling tower sump can be obtained. The first laser energy attenuation coefficient and water volume of the measuring cylinder, the second laser energy attenuation coefficient and water volume at each angle, and the total uneven water spray volume will all be displayed on the display.

[0064] By using the above device, first, through the combination of laser energy attenuation and impeller rotation counting, the water spray volume in the cooling tower sump can be accurately measured, avoiding the inaccurate measurement problems caused by uneven water spray distribution and floating body positioning errors in the traditional method. Second, only by measuring at any point in the sump, the water spray volume detection of the entire horizontal plane can be realized through the rotary scanning module, avoiding the water surface disturbance and time error caused by multi-point moving detection, ensuring that the normal operation of the cooling tower is not affected during the detection process. Finally, the laser rotary fixture can quickly rotate at a preset angle to complete the measurement of the laser energy attenuation at each angle in the horizontal plane, and combined with the single-point water volume data, quickly calculate the sum of the uneven water spray volume in the horizontal plane of the sump. In this way, the accuracy, efficiency, and convenience of the cooling tower water spray volume detection can be significantly improved, while reducing the interference to the normal operation of the cooling tower, and it has broad application prospects and practical value.

[0065] Secondly, the present invention also provides a method for detecting the water spray volume of a cooling tower, as Figure 5 shown, which is applied to the above-mentioned device for detecting the water spray volume of a cooling tower and includes:

[0066] S501. Calculate the first laser energy attenuation coefficient through the energy attenuation amount of the laser beam emitted and received by the laser transceiver module.

[0067] Specifically, the laser energy attenuation coefficient α is calculated by the following formula:

[0068]

[0069] In the formula, α represents the laser energy attenuation coefficient, and the first laser energy attenuation coefficient α of the measuring cylinder 筒 and the second laser energy attenuation coefficient α at a certain angle θ are both calculated by the above formula, where J 发 represents the laser energy emitted by the laser emitter, and J 收 represents the laser energy received by the laser receiver.

[0070] S502. Calculate the water flow through the water volume measuring cylinder based on the number of rotations of the impeller.

[0071] Specifically, the formula for calculating the water flow Q through the impeller module in the measuring cylinder is: 筒 In the formula,

[0072] Q 筒 = KN;

[0073] In the formula, Q 筒 represents the water flow through the measuring cylinder, K represents the impeller flow coefficient obtained by calibrating with an external clamp flowmeter, and N represents the number of rotations of the impeller recorded by the counter.

[0074] S503. Drive the rotary scanning module to measure the second laser energy attenuation coefficient at all angles of the water surface in the sump.

[0075] In this step, the method for measuring the second laser energy attenuation at all angles is the same as that in S501, and will not be elaborated here.

[0076] S504. Calculate the total sum of the uneven water spray amounts in the water surface of the sump based on the water flow through, the first laser energy attenuation coefficient, and the second laser energy attenuation coefficient.

[0077] The rotary scanning module calculates the water volume at each angle in the water surface of the sump through the following formula:

[0078]

[0079] In the formula, Q θ represents the water volume at this angle in the water surface of the sump, α θ represents the second laser energy attenuation coefficient at this angle, α 筒 represents the first laser energy attenuation coefficient of the water volume measuring cylinder, and Q 筒 represents the water flow through the measuring cylinder.

[0080] After quickly completing the water volume detection at each angle in the entire water surface through the laser rotary fixator and the pusher, based on the integral formula, calculate the total sum of the uneven water spray amounts in the water surface, that is, the calculation formula for the total sum of the uneven water spray amounts is as follows:

[0081]

[0082] In the formula, A represents the total sum of uneven water spraying amounts within the horizontal plane of the collecting basin, Q(θ) represents the water amounts at various angles, and θ represents the angle.

[0083] In one embodiment, when actually using this device, in the first step, the detection float box is placed into the cooling tower collecting basin, and the float box pusher is controlled through the remote control terminal to move the detection float box to the central area of the collecting basin; in the second step, the laser transceiver of the water volume measuring cylinder is turned on at the remote control terminal, and the starting measurement position of the laser rotation fixator is adjusted; in the third step, when the display screen shows that there is a reading on the impeller rotation counter of the measuring cylinder, the switch of the collecting basin laser transceiver is turned on, the collecting basin rotates automatically for one week, and the display screen records and shows the water spraying amounts at various angles within the horizontal plane and the total water spraying amount within the horizontal plane of the collecting basin. If the display screen shows that the impeller does not rotate, the float box is controlled through the remote control terminal to move to a position with water spraying, and after there is a reading, the subsequent detection is carried out; in the fourth step, the reading on the display screen is recorded. After the detection work is completed, the detection float box is taken out from the water tank, and then it can be put into the detection of the water spraying amount of other cooling towers.

[0084] By adopting the above method, firstly, through the combination of laser energy attenuation and impeller rotation counting, the water spraying amount within the cooling tower collecting basin can be accurately measured, avoiding the inaccurate measurement problems caused by uneven water spraying distribution and floating body positioning error in the traditional method. Secondly, only by measuring at any point within the collecting basin, the water spraying amount detection of the entire horizontal plane can be realized through the rotation scanning module, avoiding the water surface disturbance and time error brought by multi-point moving detection, ensuring that the normal operation of the cooling tower during the detection process is not affected. Finally, the laser rotation fixator can quickly rotate according to the preset angle to complete the measurement of the laser energy attenuation at various angles within the horizontal plane, and combined with the single-point water volume data, quickly calculate the total sum of uneven water spraying amounts within the horizontal plane of the collecting basin. In this way, the accuracy, efficiency, and convenience of the cooling tower water spraying amount detection can be significantly improved, while reducing the interference to the normal operation of the cooling tower, having broad application prospects and practical value.

[0085] The present invention also provides a computer-readable storage medium, which stores a computer program, and the computer program can be used to execute the steps of Figure 5 a method for detecting the water spraying amount of a cooling tower provided above.

[0086] The present invention also provides a computer device. At the hardware level, this computer device includes a processor, an internal bus, a network interface, a memory, and a non-volatile memory. Of course, it may also include other hardware required for other services. The processor reads the corresponding computer program from the non-volatile memory into the memory and then runs it to implement the steps of Figure 5 a method for detecting the water spraying amount of a cooling tower provided above.

[0087] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system or a computer program product. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0088] The present invention is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems) and computer program products according to embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, and the combination of the flows and / or blocks in the flowchart and / or block diagram can also be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for realizing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0089] These computer program instructions can 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 generate a manufactured article including an instruction device, and the instruction device realizes the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0090] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Therefore, the instructions executed on the computer or other programmable device provide steps for realizing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0091] It should be noted that the above specific implementation method can enable those skilled in the art to understand the invention more comprehensively, but does not limit the invention in any way. Therefore, although the present invention has been described in detail in this specification, those skilled in the art should understand that the invention can still be modified or replaced by equivalents; and all technical solutions and improvements that do not deviate from the spirit and scope of the invention are included in the protection scope of the patent for the invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A cooling tower water spraying volume detection device, characterized in that, The device includes: A water volume measuring cylinder (1) for receiving the spray water from the cooling tower sump. A laser transceiver module (3) disposed within the water volume measuring cylinder (1) for emitting and receiving a laser beam passing through water droplets. A rotary scanning module disposed on the outer wall of the water volume measuring cylinder (1) at the water surface, including a laser rotary fixator (4) and a sump laser transceiver (5), wherein the laser rotary fixator (4) drives the sump laser transceiver (5) to rotate at a preset angle. An impeller module disposed on the water flow path within the water volume measuring cylinder (1) and below the laser transceiver module (3), including an impeller (7) and a counter (6), wherein the impeller is driven by the water flow to rotate, and the counter (6) records the number of rotations of the impeller (7).

2. The water spraying volume detection device for a cooling tower according to claim 1, wherein, The lower end of the water volume measuring cylinder (1) is open, and the spray water enters through the upper port and sequentially passes through the laser transceiver module (3) and the impeller module, and flows into the sump from the lower port.

3. The device according to claim 1, characterized in that, The device further includes a detection floating box (14) located at the lower part of the water volume measuring cylinder (1) for carrying the water volume measuring cylinder (1).

4. The water spraying amount detection device for a cooling tower according to claim 1, wherein The device further includes a signal transmission module and a display module; The signal transmission module is configured to transmit the data of the counter (6) and the laser energy attenuation coefficient to the display module; The display module is configured to display in real time the water volume flowing through, the water volume at each angle, and the total spray water volume.

5. The water spraying volume detection device for a cooling tower according to claim 1, wherein, The laser rotary fixator (4) is driven by a transmission motor (401) to automatically rotate at a preset interval time and angle to complete a full-angle scan of the horizontal plane.

6. A method for detecting the water spraying amount of a cooling tower, characterized in that, Applied to a cooling tower spray water volume detection device according to claim 1, including: Calculating a first laser energy attenuation coefficient based on the energy attenuation amount of the laser beam emitted and received by the laser transceiver module; Calculating the water volume flowing through the water volume measuring cylinder based on the number of rotations of the impeller; Driving the rotary scanning module to measure the second laser energy attenuation coefficient at all angles of the sump horizontal plane; Calculating the total sum of the uneven spray water volume within the sump horizontal plane based on the water volume flowing through, the first laser energy attenuation coefficient, and the second laser energy attenuation coefficient.

7. A method for detecting the water spraying amount of a cooling tower according to claim 6, characterized in that, The formula for calculating the water volume flowing through the impeller module is: Q 筒 = KN; Among them, Q 筒 is the water flow through the measuring cylinder, K is the impeller flow coefficient, and N is the number of impeller rotations.

8. A method for detecting the water spraying amount of a cooling tower according to claim 6, characterized in that, The calculating the total sum of the uneven spray water volume within the sump horizontal plane based on the first laser energy attenuation coefficient and the second laser energy attenuation measurement includes: Calculating the water volume at each angle within the sump horizontal plane through the following formula: Among them, Q θ is the water volume at the angle θ, and α θ is the second laser energy attenuation coefficient at the angle θ, and α 筒 is the first laser energy attenuation coefficient of the water volume measuring cylinder, and Q 筒 is the water volume flowing through the measuring cylinder; Determining the total sum of the uneven spray water volume within the sump horizontal plane based on the water volume at each angle.

9. A method for detecting the water spraying amount of a cooling tower according to claim 8, characterized in that, The total sum of the uneven spray water volume is calculated through an integral formula: A is the total amount of uneven spray water within the horizontal plane, Q(θ) represents the water volume at each angle, and θ represents the angle.

Images