Automatic regulation and control cooling tower outlet water temperature on-line measuring device

Abstract

The invention discloses an automatic regulation and control cooling tower outlet water temperature on-line measuring device, and relates to the technical field of closed cooling towers, the automatic regulation and control cooling tower outlet water temperature on-line measuring device comprises a closed cooling tower and a regulation and control assembly, and a multi-layer S-shaped structure top coil pipe is coiled at the middle end in the closed cooling tower. In the using process, when the outlet water temperature is smaller than 25 DEG C, the draught fan operates at low power to meet the cooling requirement, and when the outlet water temperature reaches the liquid column height corresponding to 25 DEG C, the annular proximity switch located on the lower portion senses the buoy and further sends an instruction to the draught fan through the single-chip microcomputer to increase the rotating speed of the draught fan; the cooling purpose is achieved through heat exchange of hot water and cold air, when the outlet water temperature reaches the liquid column height corresponding to 35 DEG C, the annular proximity switch located on the upper portion senses the buoy and further sends a starting instruction to the water pump through the single-chip microcomputer, and the cooling purpose is achieved in an air cooling and spraying mode. And in the spray cooling mode, the open default fan operates in a high-power state to supplement the cooling effect.

Description

Technical Field

[0001] The invention relates to the technical field of closed cooling towers, in particular to an automatically controlled online measuring device for cooling tower outlet water temperature. Background Art

[0002] Cooling tower is a commonly used cooling equipment. Its working principle is that the high-temperature circulating water that needs to be cooled transfers its own heat to the air through latent heat and sensible heat exchange with the air inside the cooling tower to achieve cooling. Among them, the closed cooling tower uses a partition-type heat exchange coil instead of the traditional filler. The cooling water flows in the heat exchange coil to avoid direct contact with the air and ensure the cleanliness of the cooling water. Due to its cleanliness, the closed cooling tower has a good market prospect in the power, chemical, steel, metallurgy, HVAC and other industries.

[0003] At present, the common closed cooling tower generally adopts the spraying form. The spray water flows through the heat exchange tube bundle from top to bottom by gravity to form a water film, taking away the heat of the fluid in the tube. The air contacts the spray water and takes away the heat of the spray water through evaporation heat exchange and convection heat exchange with the spray water. However, as the production process continues, the temperature of the circulating spray water will increase, which will lead to a decrease in the heat exchange effect. The additional addition of compressors and other equipment to cool the circulating spray water will undoubtedly increase production costs. Secondly, the mechanical ventilation motor and spray cooling water pump used in the existing cooling tower heat exchange cannot be adaptively opened and closed according to the outlet water temperature, which also leads to high energy consumption.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and an automatically controlled online measurement device for the outlet water temperature of the cooling tower is proposed. Summary of the invention

[0005] The object of the present invention is to provide an automatically controlled online measuring device for cooling tower outlet water temperature to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatically controlled online measuring device for cooling tower outlet water temperature, comprising a closed cooling tower and a control component, wherein a multi-layer serpentine structure top coil is spirally arranged at the middle end inside the closed cooling tower, and a hot water inlet is arranged at the input end of the top coil, and the control component is arranged at the output end of the top coil, and the control component comprises an outlet pipe, a connecting flange, a body, a single-chip microcomputer, a glass tube, a protective cover, a liquid bubble, a liquid column, a buoy and an annular proximity switch, the outlet pipe is connected to the output end of the top coil, and a connecting flange is connected to the top of the outlet pipe, the top bolts of the connecting flange are fixed to the body, and a single-chip microcomputer is fixed to the top of the body, a glass tube extending to the inside of the outlet pipe from the bottom of the body, and a protective cover is arranged at the root of the glass tube, a liquid bubble is arranged at the root of the glass tube, and the inside of the liquid bubble is filled with a liquid column, a buoy floats above the liquid surface of the glass tube, and two annular proximity switches are arranged around the top of the glass tube.

[0007] Furthermore, the protective cover mounted at the root of the glass tube is made of heat-conducting metal material, and the liquid column inside the glass tube expands as the outlet water temperature of the outlet pipe fluctuates, thereby causing a change in height, and the medium density in the liquid column is greater than the buoy density.

[0008] Furthermore, the two annular proximity switches are electrically connected to the single chip microcomputer via a signal line, and the liquid column heights corresponding to the two annular proximity switches are the starting temperatures of air cooling and spray cooling, respectively.

[0009] Furthermore, ventilation holes communicating with the inner cavity are provided around the bottom of the closed cooling tower, and three fans are arranged at the top of the closed cooling tower.

[0010] Furthermore, a bracket is fixed to the bottom end of the closed cooling tower via supporting legs, and a water collecting tank is fixed to the bottom end of the closed cooling tower.

[0011] Furthermore, a water pump is fixed outside the closed cooling tower, and the top output end of the water pump is connected to a spray pipe. The spray pipe is located above the top coil, and atomizing nozzles are arranged at equal intervals in the extension direction of the spray pipe.

[0012] Furthermore, a cooling assembly is fixed in the middle of the bracket, and the cooling assembly includes a frame, a water guide plate and a through groove. The water guide plates are symmetrically fixed on both sides of the frame, and a through groove is opened in the middle of the frame.

[0013] Furthermore, the cooling component also includes a bayonet and a wet curtain. The bayonet is symmetrically provided on both sides of the through slot and is recessed to the side. The bayonet is located at the upper and lower ends of the through slot. A wet curtain is engaged inside the bayonet, and the wet curtain is a paper material with a large surface area and strong water absorption.

[0014] Furthermore, the cooling assembly also includes a bottom coil, which is arranged in the middle of the through slot, and the bottom coil is a single-layer serpentine structure, and the bottom coil is located in the middle of the upper and lower wet curtain interlayers.

[0015] Furthermore, the cooling assembly also includes a return pipe and a pumping pipe. The bottom coil is connected to one side with a return pipe, and the return pipe supplies cooling circulating water to the water pump. The bottom coil is connected to the other side with a pumping pipe, and the pumping pipe is connected to the water collecting tank.

[0016] The present invention provides an automatically controlled online measuring device for cooling tower outlet water temperature, which has the following beneficial effects:

[0017] 1. During the use of the present invention, the water with a relatively high temperature coming out of the condenser, absorber or process equipment enters the top coil from the hot water inlet. The present application installs a regulating component at the end of the water outlet pipe of the top coil. The water flowing in the water outlet pipe conducts heat to the bubble at the root of the glass tube through the metal protective sleeve. The medium in the bubble expands due to heat, thereby driving the liquid column height to rise. At the same time, there is a buoy at the top of the liquid column with a density lower than that of the medium and in a floating state. When the outlet water temperature is less than 25 degrees, the fan runs at a lower power to meet the cooling demand. When the outlet water temperature reaches the liquid column height corresponding to 25 degrees, the annular proximity switch located below senses The buoy will be sensed and a command will be further issued to the fan through the single-chip microcomputer to increase the fan speed, and the cooling purpose will be achieved through heat exchange between hot water and cold air. When the outlet water temperature reaches the liquid column height corresponding to thirty-five degrees, the annular proximity switch located above will sense the buoy and further issue a power-on command to the water pump through the single-chip microcomputer, and the cooling purpose will be achieved through air cooling and spraying. When the spray cooling mode is turned on, the fan defaults to running in a high-power state to supplement the cooling effect. The present application can automatically adjust the cooling mode of the closed cooling tower according to the outlet water temperature, thereby reducing energy consumption while ensuring that the water in the outlet pipe reaches the preset temperature, thereby achieving the process effect of reducing costs and increasing efficiency.

[0018] 2. During the use of the present invention, the water pump is connected to the bottom coil through the side return pipe, and further extracts the spray water in the water collection tank through the pumping pipe for recycling. When in use, the top spray pipe of the water pump sprays the spray water on the surface of the top coil through the atomizing nozzle to form a water film. The fan draws air into the tower through the lower vent and moves in the opposite direction of the spray water, and exchanges heat with the water film to achieve the purpose of cooling. During this period, the spray water will be evenly scattered on the wet curtain in the process of falling back to the water collection tank, and will drip into the water collection tank after soaking the wet curtain. On the one hand, when the fan draws air into the tower through the lower vent and moves upward, when the hot air passes through the wet wet curtain, the water evaporates on the wet curtain and absorbs the heat in the air, thereby Lowering the temperature of the air can obtain cool air, and the cool air can further enhance the cooling effect when exchanging heat with the water film. On the other hand, while the water in the wet curtain evaporates and absorbs heat, the bottom coil buried in the middle of the frame is cooled synchronously, and the water pump is provided with circulating water that has been cooled. In this way, the cooling effect is further enhanced by cooling the spray water during its circulation process. The present application uses a cooling component to achieve a dual cooling effect on the flowing air and the spray circulating water through the wet curtain, thereby enhancing the heat exchange effect with the water in the top coil, and there is no need to use high-power equipment such as a compressor, so the power consumption is low, and the cooling effect is improved while meeting the energy-saving and environmental protection requirements, and the application is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention;

[0020] Figure 2 This is a schematic diagram of the top coil structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the control component of the present invention;

[0022] Figure 4 This is a schematic diagram of the spray cooling structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the spray pipe of the present invention;

[0024] Figure 6 It is a schematic diagram of the cooling assembly structure of the present invention.

[0025] In the figure: 1. Closed cooling tower; 2. Ventilation port; 3. Fan; 4. Bracket; 5. Water collecting tank; 6. Top coil; 7. Hot water inlet; 8. Control component; 801. Water outlet pipe; 802. Connecting flange; 803. Machine body; 804. Single chip microcomputer; 805. Glass tube; 806. Protective cover; 807. Liquid bubble; 808. Liquid column; 809. Float; 810. Ring proximity switch; 9. Water pump; 10. Spray pipe; 11. Atomizing nozzle; 12. Cooling component; 1201. Frame; 1202. Water guide plate; 1203. Through groove; 1204. Bayonet; 1205. Wet curtain; 1206. Bottom coil; 1207. Return pipe; 1208. Pumping pipe. DETAILED DESCRIPTION

[0026] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0027] See also Figures 1 to 3 The present invention provides a technical solution: an automatically controlled online measuring device for outlet water temperature of a cooling tower, comprising a closed cooling tower 1 and a control component 8, wherein a multi-layer serpentine structure top coil 6 is spirally arranged at the middle end inside the closed cooling tower 1, and a hot water inlet 7 is arranged at the input end of the top coil 6, and the control component 8 is arranged at the output end of the top coil 6, and the control component 8 comprises an outlet pipe 801, a connecting flange 802, a body 803, a single-chip computer 804, a glass tube 805, a protective cover 806, a liquid bubble 807, a liquid column 808, a buoy 809 and an annular proximity switch 810, the outlet pipe 801 is connected to the output end of the top coil 6, and a connecting flange 802 is connected to the top of the outlet pipe 801, the top of the connecting flange 802 is bolted to the body 803, and a single-chip computer 804 is fixed to the top of the body 803, and the bottom of the body 803 extends A glass tube 805 extends to the inside of the water outlet pipe 801, and a protective sleeve 806 is set at the root of the glass tube 805. A liquid bubble 807 is set at the root of the glass tube 805, and the liquid bubble 807 is filled with a liquid column 808. A buoy 809 floats above the liquid surface of the glass tube 805, and two annular proximity switches 810 are surrounded on the top of the glass tube 805. The protective sleeve 806 set at the root of the glass tube 805 is made of heat-conducting metal material, and the liquid column 808 inside the glass tube 805 expands with the water temperature fluctuation of the water outlet pipe 801, thereby changing its height, and the medium density in the liquid column 808 is greater than the density of the buoy 809. The two annular proximity switches 810 are electrically connected to the single-chip computer 804 through a signal line, and the heights of the liquid columns 808 corresponding to the two annular proximity switches 810 are the starting temperatures of air cooling and spray cooling, respectively.

[0028] The specific operation is as follows: the higher temperature water coming out of the condenser, absorber or process equipment enters the top coil 6 from the hot water inlet 7. The present application installs a regulating component 8 at the end of the water outlet pipe 801 of the top coil 6. The water flowing in the water outlet pipe 801 conducts heat to the bubble 807 at the root of the glass tube 805 through the metal protective sleeve 806. The medium in the bubble 807 expands due to the heat and drives the liquid column 808 to rise in height. At the same time, there is a buoy 809 at the top of the liquid column 808 with a density less than that of the medium and in a floating state. When the outlet water temperature is less than 25 degrees, the fan 3 runs at a lower power to meet the cooling demand. When the outlet water temperature reaches the height of the liquid column 808 corresponding to 25 degrees, the annular proximity switch located below 810 senses the buoy 809 and further issues a command to the fan 3 through the single-chip computer 804 to increase the speed of the fan 3, and achieves the cooling purpose through the heat exchange between hot water and cold air. When the outlet water temperature reaches the height of the liquid column 808 corresponding to thirty-five degrees, the annular proximity switch 810 located above senses the buoy 809 and further issues a start-up command to the water pump 9 through the single-chip computer 804, and achieves the cooling purpose by air cooling and spraying. In the spray cooling mode, the fan 3 defaults to running at a high power state to supplement the cooling effect. The present application can automatically adjust the cooling mode opened by the closed cooling tower 1 according to the outlet water temperature, while ensuring that the water in the outlet pipe 801 reaches the preset temperature, reducing energy consumption, and achieving the process effect of reducing costs and increasing efficiency.

[0029] See also Figures 4 to 6The bottom of the closed cooling tower 1 is provided with ventilating holes 2 connected with the inner cavity, and three fans 3 are arranged at the top of the closed cooling tower 1. The bottom of the closed cooling tower 1 is fixed with a bracket 4 through a support leg, and a water collecting tank 5 is fixed at the bottom of the closed cooling tower 1. A water pump 9 is fixed outside the closed cooling tower 1, and a spray pipe 10 is connected to the top output end of the water pump 9. The spray pipe 10 is located above the top coil 6, and atomizing nozzles 11 are arranged at equal intervals in the extension direction of the spray pipe 10. A cooling assembly 12 is fixed in the middle of the bracket 4. The cooling assembly 12 includes a frame 1201, a water guide plate 1202 and a through groove 1203. The water guide plates 1202 are symmetrically fixed on both sides of the frame 1201, and a through groove 1203 is opened through the middle of the frame 1201. The cooling assembly 12 also includes a bayonet 1204 and a wet curtain 1205. The through groove 1203 The two sides are symmetrically provided with bayonet holes 1204 recessed toward the sides, and the bayonet holes 1204 are located at the upper and lower ends of the through groove 1203, and a wet curtain 1205 is engaged inside the bayonet holes 1204, and the wet curtain 1205 is a paper material with a large surface area and strong water absorption, the cooling component 12 also includes a bottom coil 1206, a bottom coil 1206 is arranged in the middle of the through groove 1203, and the bottom coil 1206 is a single-layer serpentine structure, and the bottom coil 1206 is located in the middle of the upper and lower layers of the wet curtain 1205 interlayer, the cooling component 12 also includes a return pipe 1207 and a water pump 1208, one side of the bottom coil 1206 is connected to the return pipe 1207, and the return pipe 1207 supplies cooling circulating water to the water pump 9, and the other side of the bottom coil 1206 is connected to the water pump 1208, and the water pump 1208 is connected to the water collecting tank 5;

[0030] The specific operation is as follows: the water pump 9 is connected to the bottom coil 1206 through the side return pipe 1207, and further extracts the spray water in the water collection tank 5 through the pumping pipe 1208 for recycling. When in use, the top spray pipe 10 of the water pump 9 sprays the spray water on the surface of the top coil 6 through the atomizing nozzle 11 to form a water film, and the fan 3 draws air into the tower through the lower vent 2, moves in the opposite direction of the spray water, and exchanges heat with the water film to achieve the purpose of cooling. During this period, the spray water will be evenly scattered on the wet curtain 1205 in the process of falling back to the water collection tank 5, and then drip into the water collection tank 5 after soaking the wet curtain 1205. On the one hand, when the fan 3 draws air into the tower through the lower vent 2 and moves upward, when the hot air passes through the wet wet curtain 1205, the water evaporates and absorbs on the wet curtain 1205 The heat in the air is then reduced to obtain cool air, which can further enhance the cooling effect when exchanging heat with the water film. On the other hand, while the water in the wet curtain 1205 evaporates and absorbs heat, the bottom coil 1206 buried in the middle of the frame 1201 is cooled synchronously, and the circulating water that has been cooled is provided to the water pump 9. In this way, the cooling effect is further enhanced by cooling the spray water during its circulation. The present application uses a cooling component 12 to achieve a dual cooling effect on the flowing air and the spray circulating water through the wet curtain 1205, thereby enhancing the heat exchange effect with the water in the top coil 6, and does not require the use of high-power equipment such as a compressor, so the power consumption is low, and the cooling effect is enhanced while meeting the requirements of energy conservation and environmental protection, and the application is strong.

[0031] In summary, when using the automatically controlled online measuring device for the outlet water temperature of a cooling tower, the higher temperature water coming out of the condenser, absorber or process equipment enters the top coil 6 from the hot water inlet 7. The present application installs a control component 8 at the end outlet pipe 801 of the top coil 6. The water flowing in the outlet pipe 801 conducts heat to the bubble 807 at the root of the glass tube 805 through the metal protective cover 806. The medium in the bubble 807 expands due to the heat, thereby driving the height of the liquid column 808 to rise. At the same time, there is a buoy 809 at the top of the liquid column 808 with a density less than that of the medium and in a floating state. When the outlet water temperature is less than twenty-five degrees, the fan 3 runs at a lower power to meet the cooling demand. When the outlet water temperature reaches the height of the liquid column 808 corresponding to twenty-five degrees When the outlet water temperature reaches the height of the liquid column 808 corresponding to thirty-five degrees, the annular proximity switch 810 located above senses the buoy 809 and further sends a start-up command to the water pump 9 through the single-chip microcomputer 804, and the cooling purpose is achieved by air cooling and spraying. In the spray cooling mode, the fan 3 defaults to running in a high-power state to supplement the cooling effect. The present application can automatically adjust the cooling mode opened by the closed cooling tower 1 according to the outlet water temperature, thereby reducing energy consumption while ensuring that the water in the outlet pipe 801 reaches the preset temperature, thereby achieving cost reduction and efficiency improvement. In order to achieve the process effect, the water pump 9 is connected with the bottom coil 1206 through the side return pipe 1207, and further extracts the spray water in the water collection tank 5 through the pumping pipe 1208 for recycling. When in use, the top spray pipe 10 of the water pump 9 sprays the spray water on the surface of the top coil 6 through the atomizing nozzle 11 to form a water film, and the fan 3 draws air into the tower through the lower vent 2, moves in the opposite direction of the spray water, and exchanges heat with the water film to achieve the cooling purpose. During this period, the spray water will be evenly scattered on the wet curtain 1205 in the process of falling back to the water collection tank 5, and then drip into the water collection tank 5 after soaking the wet curtain 1205. On the one hand, when the fan 3 draws air into the tower through the lower vent 2 and moves upward, the hot air passes through the wet wet curtain 1205, and the water in The heat in the air is absorbed by evaporation on the wet curtain 1205, thereby lowering the temperature of the air to obtain cool air. The cool air can further improve the cooling effect when exchanging heat with the water film. On the other hand, while the water in the wet curtain 1205 evaporates and absorbs heat, the bottom coil 1206 buried in the middle of the frame 1201 is cooled synchronously, and the circulating water that has been cooled is provided to the water pump 9. In this way, the cooling effect is further improved by cooling the spray water during its circulation. The present application uses the cooling component 12 to achieve a dual cooling effect on the flowing air and the spray circulating water through the wet curtain 1205, thereby improving the heat exchange effect with the water in the top coil 6, and does not require the use of high-power equipment such as a compressor, so the power consumption is low.It improves the cooling effect while meeting the requirements of energy saving and environmental protection, and has strong applicability.

[0032] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various implementations with various modifications suitable for specific uses.

Claims

1. An automatic control cooling tower outlet water temperature online measurement device, characterized in that: The invention comprises a closed cooling tower (1) and a control component (8), wherein a multi-layer serpentine structure top coil (6) is spirally arranged at the middle end inside the closed cooling tower (1), and a hot water inlet (7) is arranged at the input end of the top coil (6), and the control component (8) is arranged at the output end of the top coil (6), and the control component (8) comprises a water outlet pipe (801), a connecting flange (802), a machine body (803), a single chip computer (804), a glass tube (805), a protective cover (806), a liquid bubble (807), a liquid column (808), a buoy (809) and an annular proximity switch (810), and the water outlet pipe (801) is connected to the output end of the top coil (6), and the water outlet pipe (801) is connected to the output end of the top coil (6). A connecting flange (802) is connected to the top of (801), the top of the connecting flange (802) is bolted to a body (803), and a single-chip computer (804) is fixed to the top of the body (803), a glass tube (805) is extended from the bottom of the body (803) to the inside of the water outlet pipe (801), and a protective sleeve (806) is sleeved on the root of the glass tube (805), a liquid bubble (807) is arranged at the root of the glass tube (805), and the inside of the liquid bubble (807) is filled with a liquid column (808), a buoy (809) floats above the liquid surface of the glass tube (805), and two annular proximity switches (810) are arranged around the top of the glass tube (805).

2. The automatic control cooling tower outlet water temperature online measuring device according to claim 1 is characterized in that: The protective sleeve (806) mounted at the root of the glass tube (805) is made of heat-conducting metal material, and the liquid column (808) inside the glass tube (805) expands as the outlet water temperature of the outlet pipe (801) fluctuates, thereby causing a change in height, and the medium density in the liquid column (808) is greater than the density of the buoy (809).

3. The automatic control cooling tower outlet water temperature online measuring device according to claim 1 is characterized in that: The two annular proximity switches (810) are electrically connected to the single chip computer (804) via a signal line, and the heights of the liquid columns (808) corresponding to the two annular proximity switches (810) are respectively the starting temperatures of air cooling and spray cooling.

4. The automatic control cooling tower outlet water temperature online measuring device according to claim 1, characterized in that: Ventilation holes (2) communicating with the inner cavity are provided around the bottom of the closed cooling tower (1), and three fans (3) are arranged at the top of the closed cooling tower (1).

5. The automatic control cooling tower outlet water temperature online measuring device according to claim 1, characterized in that: A bracket (4) is fixed to the bottom end of the interior of the closed cooling tower (1) via supporting legs, and a water collecting tank (5) is fixed to the bottom end of the interior of the closed cooling tower (1).

6. The automatic control cooling tower outlet water temperature online measuring device according to claim 1, characterized in that: A water pump (9) is fixed outside the closed cooling tower (1), and a spray pipe (10) is connected to the top output end of the water pump (9). The spray pipe (10) is located above the top coil (6), and atomizing nozzles (11) are arranged at equal intervals in the extension direction of the spray pipe (10).

7. The automatic control cooling tower outlet water temperature online measuring device according to claim 5, characterized in that: A cooling assembly (12) is fixed in the middle of the bracket (4), and the cooling assembly (12) comprises a frame (1201), a water guide plate (1202) and a through groove (1203). The water guide plates (1202) are symmetrically fixed on both sides of the frame (1201), and a through groove (1203) is opened through the middle of the frame (1201).

8. The automatic control cooling tower outlet water temperature online measuring device according to claim 7, characterized in that: The cooling component (12) further comprises a snap-on (1204) and a wet curtain (1205); the snap-on (1204) which is recessed towards the side is symmetrically provided on both sides of the through slot (1203); the snap-on (1204) is located at the upper and lower ends of the through slot (1203); the wet curtain (1205) is engaged inside the snap-on (1204); and the wet curtain (1205) is made of a paper material with a large surface area and strong water absorption.

9. The automatic control cooling tower outlet water temperature online measuring device according to claim 8, characterized in that: The cooling assembly (12) further comprises a bottom coil (1206), the bottom coil (1206) being arranged in the middle of the through groove (1203), the bottom coil (1206) being a single-layer serpentine structure, and the bottom coil (1206) being located in the middle of the interlayer between the upper and lower layers of the wet curtain (1205).

10. The automatic control cooling tower outlet water temperature online measuring device according to claim 9, characterized in that: The cooling assembly (12) further comprises a return pipe (1207) and a water pump (1208); one side of the bottom coil (1206) is connected to the return pipe (1207), and the return pipe (1207) supplies cooling circulating water to the water pump (9); the other side of the bottom coil (1206) is connected to the water pump (1208), and the water pump (1208) is connected to the water collecting tank (5).

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