Intelligent self-water-replenishing closed cooling tower with adjustable air inlet rate

Abstract

The invention belongs to the technical field of cooling towers, and particularly relates to an intelligent self-water-replenishing cooling tower with adjustable air inlet rate, which comprises a shell, a spraying piece arranged at the upper part in the shell, a water collecting tank arranged at the lower part of the inner wall of the shell, and a control panel arranged on the outer wall of the lower part of the shell, regulation and control mechanisms for regulating the air inlet amount are arranged on the bottom walls of the two sides of the exterior of the shell; according to the invention, comprehensive monitoring and management of the operation of the cooling tower are realized, faults in the operation of the cooling tower can be found and early warned in time, the operation stability of the cooling tower is enhanced, the corresponding circulating pump, the fan and the air inlet amount can be optimized and adjusted according to the cooling effect of the circulating water, and the cooling effect of the circulating water is ensured to reach an optimal state.

Description

Technical Field

[0001] The invention relates to the technical field of cooling towers, in particular to an intelligent self-water replenishing cooling tower with adjustable air inlet volume. Background Art

[0002] Intelligent self-supplementing cooling tower is mainly used to cool the circulating water. The circulating water performs heat exchange in the cooling tower. It is characterized by being able to automatically monitor and adjust the water level to ensure the continuous supply of water during the cooling process, thereby maintaining the stability and reliability of the cooling effect. This type of cooling tower is widely used in industrial and commercial fields, such as steel, chemical industry, electric power, commercial buildings, etc., to meet the cooling water needs of various equipment and systems; However, in the prior art, when cooling the circulating water, the operating effect of the cooling tower is often judged based on the cooling effect of the circulating water. However, due to the lack of a comprehensive monitoring and early warning mechanism, it is difficult to promptly warn and handle failures of the cooling tower during operation, thereby reducing the stability of the cooling tower operation. At the same time, under the premise of ensuring the stable operation of the cooling tower, it is difficult to optimize and adjust the parameters of the components in the cooling tower and the air intake volume to ensure that the cooling effect of the circulating water reaches the best state.

[0003] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0004] The object of the present invention is to provide an intelligent self-water replenishing cooling tower with adjustable air inlet volume to solve the technical defects proposed by the background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: an intelligent self-water replenishing cooling tower with adjustable air inlet volume, comprising a shell, a spraying member is arranged above the interior of the shell, a water collecting tank is arranged below the inner wall of the shell, a control panel is arranged on the outer wall below the shell, and a regulating mechanism for regulating the air inlet volume is arranged on both sides of the bottom wall outside the shell; the regulating mechanism comprises a circulating pump arranged at the bottom of the shell, the output end of the circulating pump is connected to a conveying pipe, and a vent is opened on the side wall of the shell; A shutter assembly is arranged in the vent, and the shutter assembly includes a plurality of shutter plates, and a slide groove is provided on the outer wall of the shutter plate at the bottom; The bottom side wall of the delivery pipe is connected to the slide groove through an adjusting component. The adjusting component includes a pressure pipe connected to the side wall of the delivery pipe. The output end of the pressure pipe is connected to a limiting cylinder. A piston plate is slidably arranged in the limiting cylinder. A movable rod is fixedly connected to the top of the piston plate. An upper limiting ring and a lower limiting ring are arranged in the limiting cylinder. The movable rod movably passes through the outside of the limiting cylinder and is fixedly connected to a shifting rod. The shifting rod is movably matched with the slide groove. A thrust spring is sleeved on the outer wall of the movable rod.

[0006] Furthermore, the upper limit ring and the lower limit ring are respectively arranged at the upper middle position and the lower middle position inside the limit cylinder, and the thrust spring is arranged between the piston plate and the limit cylinder.

[0007] Furthermore, the output end of the circulation pump extends into the shell through a delivery pipe and is connected to the spray element, and the input end of the circulation pump is connected to the water collecting tank through a pumping pipe.

[0008] Furthermore, the outer wall of the louver is rotatably connected to the vent via a movable shaft, and a connecting plate is rotatably provided at the end of a plurality of the louvers away from the slide groove.

[0009] Furthermore, the control panel includes a processor, a parameter acquisition module, a diagnosis module, a fault troubleshooting module, an early warning module, an integration module and an execution module; The parameter acquisition module is used to collect the temperature difference of the circulating water in the cooling pipe of the cooling tower within the time threshold, and send the obtained temperature difference to the diagnosis module through the processor; After receiving the temperature difference value, the diagnosis module immediately compares and analyzes the temperature difference value with the preset range in the processor for the first time; if the temperature difference value is within the preset range, no signal is generated; if the temperature difference value is outside the preset range, an overall cooling risk signal is generated, and the obtained overall cooling risk signal is sent to the fault detection module and the integration module; After receiving the overall cooling risk signal, the fault troubleshooting module immediately collects the main information and auxiliary information of the electrical components of the cooling tower, obtains the comprehensive operation risk coefficient according to the formula, and compares and analyzes the comprehensive operation risk coefficient with the comprehensive operation risk coefficient preset in the processor, sends the obtained equipment fault signal to the early warning module, and sends the obtained equipment normal operation signal to the integration module; After receiving the fault signal of the equipment itself, the early warning module immediately converts it into text and sends it to the user terminal; After receiving the normal operation signal of the equipment and the overall cooling risk signal, the processor of the integration module synchronously obtains the temperature difference value that generates the overall cooling risk signal, and compares the temperature difference value with the preset range for the second time; if the temperature difference value is greater than or equal to the maximum value of the preset range, a first-level control signal is generated, indicating that the cooling tower has no faults and the cooling effect of the circulating water is too good, resulting in the water temperature of the circulating water being too low after cooling; if the temperature difference value is less than or equal to the minimum value of the preset range, a second-level control signal is generated, indicating that the cooling tower has no faults and the cooling effect of the circulating water is too poor, and both the first-level control signal and the second-level control signal are sent to the execution module.

[0010] Furthermore, after receiving the primary control signal, the execution module immediately adjusts the power of the circulation pump to the first gear. At this time, the thrust of the thrust spring is greater than the impact force of the cooling water, so that the piston plate is squeezed onto the lower limit ring, and the movable rod pulls the lever downward, so that the lever presses the louver plate downward, so that the gap between the multiple louvers is reduced, the air intake of the cooling tower is reduced, and the power of the fan is controlled to the first gear; After receiving the secondary control signal, the execution module immediately adjusts the power of the circulation pump to the second gear. At this time, the thrust of the thrust spring is less than the impact pressure of the cooling water, the piston plate is squeezed under the upper limit ring, and the movable rod pushes the lever upward to expand the gap between the louvers, increasing the air intake and controlling the fan power to the second gear.

[0011] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, through the coordinated use of the parameter acquisition module, the processor, the diagnosis module, the fault troubleshooting module, the early warning module and the execution module, the comprehensive monitoring and management of the operation of the cooling tower can be realized, which can not only timely discover and warn the faults in the operation of the cooling tower and enhance the stability of the operation of the cooling tower, but also optimize and adjust the corresponding circulation pump, fan and air intake according to the cooling effect of the circulating water, so as to ensure that the cooling effect of the circulating water reaches the best state; In the present invention, the temperature difference value is compared and analyzed by the diagnosis module, so as to accurately judge the cooling effect of the circulating water, and send the overall cooling risk signal to the fault investigation module. Through the investigation, it is determined whether the cooling tower has a fault, and the equipment's own fault signal is sent to the early warning module. The early warning module can trigger the corresponding early warning mechanism according to the received fault signal, so as to take measures to solve the fault in time, thereby ensuring the stability of the operation of the cooling tower; In the present invention, after receiving the primary control signal and the secondary control signal, the signal execution module adjusts the parameters of the corresponding circulation pump and fan and the air intake volume according to the cooling effect of the circulating water, so as to optimize the cooling effect and ensure that the cooling efficiency of the circulating water reaches the optimal state. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings; Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a front view of the internal structure of the present invention; Figure 3 It is a front view of the regulating mechanism in the present invention; Figure 4 It is a three-dimensional diagram of the regulating mechanism in the present invention; Figure 5 It is a front view of the adjustment component in the present invention; Figure 6 It is a front view of the internal structure of the limiting cylinder in the present invention; Figure 7 It is a front view of the shutter assembly in the present invention; Figure 8 is a three-dimensional diagram of the shutter assembly of the present invention; Fig. 9 Schematic diagram of the system framework of the present invention.

[0013] Figure numerals: 1. Exhaust vent; 2. Spray part; 3. Cooling pipe; 4. Control mechanism; 5. Water collecting tank; 6. Filler; 7. Shell; 8. Fan; 9. Control panel; 41. Circulation pump; 42. Delivery pipe; 43. Suction pipe; 44. Vent; 45. Adjustment assembly; 451. Pressure pipe; 452. Limit cylinder; 453. Lower limit ring; 454. Upper limit ring; 455. Piston plate; 456. Movable rod; 457. Thrust spring; 458. Push rod; 46. Shutter assembly; 461. Shutter plate; 462. Connecting plate; 463. Movable shaft; 464. Slide groove. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] Embodiment 1: Figure 1-9 As shown, the embodiment proposes an intelligent self-water replenishing cooling tower with adjustable air inlet volume, comprising a shell 7, a spraying member 2 is arranged above the inside of the shell 7, a water collecting tank 5 is arranged below the inner wall of the shell 7, a control panel 9 is arranged on the outer wall below the shell 7, and a regulating mechanism 4 for adjusting the air inlet volume is arranged on both sides of the bottom wall outside the shell 7; It should be noted that the spraying element 2 is a device in the prior art that has the function of evenly distributing cooling water. It only needs to have the function of evenly distributing the cooling water in the water collecting tank 5, and no further elaboration is given here. The regulating mechanism 4 includes a circulation pump 41 disposed at the bottom of the housing 7. The output end of the circulation pump 41 is connected to a delivery pipe 42. A vent 44 is provided on the side wall of the housing 7. A shutter assembly 46 is provided in the vent 44. The shutter assembly 46 includes a plurality of shutter plates 461. A slide groove 464 is provided on the outer wall of the shutter plate 461 at the bottom. The outer wall of the shutter plate 461 is rotatably connected to the vent 44 via a movable shaft 463. A connecting plate 462 is rotatably provided at the ends of the plurality of shutter plates 461 away from the slide groove 464. It should be noted that the lever 458 presses down the louver plates 461, so that the gaps between the multiple louver plates 461 are reduced, and the air intake of the cooling tower is reduced; the movable rod 456 pushes the lever 458 upward to expand the gaps between the louver plates 461, and the air intake is increased.

[0016] The bottom side wall of the delivery pipe 42 is connected to the slide groove 464 through the adjustment component 45. The adjustment component 45 includes a pressure pipe 451 connected to the side wall of the delivery pipe 42. The output end of the pressure pipe 451 is connected to the limiting cylinder 452. A piston plate 455 is slidably arranged in the limiting cylinder 452. A movable rod 456 is fixedly connected to the top of the piston plate 455. An upper limit ring 454 and a lower limit ring 453 are fixedly arranged in the limiting cylinder 452 from top to bottom. The movable rod 456 is movable and penetrates the outside of the limiting cylinder 452 and is fixedly connected to a lever 458. The lever 458 is movably matched with the slide groove 464. A thrust spring 457 is sleeved on the outer wall of the movable rod 456 between the piston plate 455 and the limiting cylinder 452. The output end of the circulation pump 41 extends into the housing 7 through the delivery pipe 42 and is connected to the spray element 2 , and the input end of the circulation pump 41 is connected to the water collecting tank 5 through the water pumping pipe 43 .

[0017] It should be noted that the circulating pump 41 continuously delivers cooling water to the spray part 2. At this time, part of the cooling water enters the limit cylinder 452 through the pressure pipe 451; when the power of the circulating pump 41 is adjusted to the first gear, the thrust of the thrust spring 457 is greater than the impact pressure of the cooling water, so that the piston plate 455 is squeezed onto the lower limit ring 453; when the power of the circulating pump 41 is adjusted to the second gear, the thrust of the thrust spring 457 is less than the impact pressure of the cooling water, and the piston plate 455 is squeezed under the upper limit ring 454.

[0018] An exhaust port 1 is installed on the top of the housing 7, a fan 8 is arranged in the exhaust port 1, a cooling pipe 3 is arranged on the inner wall of the housing 7 below the spray part 2, and a filler 6 is arranged on the inner wall of the housing 7 below the cooling pipe 3; the cooling pipe 3 is a functional device for conveying circulating water, which belongs to the prior art and will not be described in detail here; It should be noted here that an automatic water replenishing device is provided inside the water collecting tank 5, and the automatic water replenishing device is a functional device in the prior art that has the function of automatically replenishing cooling water to the water collecting tank 5. It is usually composed of a water level sensor, a control valve and a water replenishing pipe, etc., and can accurately control the amount of water replenishment to improve the operating efficiency and stability of the cooling tower.

[0019] Example 2: Figure 1-9 As shown, the present embodiment proposes an intelligent self-water replenishing cooling tower with adjustable air inlet volume, which is improved on the basis of the embodiment 1, and the control panel 9 includes a processor, a parameter acquisition module, a diagnosis module, a fault troubleshooting module, an early warning module, an integration module and an execution module; The parameter acquisition module is used to acquire the temperature difference value of the circulating water in the cooling pipe 3 of the cooling tower within the time threshold, and send the obtained temperature difference value to the diagnosis module through the processor; Here it should be noted that the time threshold is expressed as the duration of the cooling tower running for 2 hours; the temperature difference value is expressed as the difference between the water temperature at the input end and the output end of the cooling pipe 3, and is acquired by temperature sensors arranged on the pipe walls at the input end and the output end of the cooling pipe 3; After receiving the temperature difference value, the diagnosis module immediately conducts a preliminary comparison and analysis of the temperature difference value with the preset range in the processor; if the temperature difference value is within the preset range, no signal is generated; if the temperature difference value is outside the preset range, an overall cooling risk signal is generated, and the obtained overall cooling risk signal is sent to the fault troubleshooting module and the integration module; After receiving the overall cooling risk signal, the fault troubleshooting module immediately acquires the main information of the electrical components and the secondary information of the auxiliary aspects of the cooling tower. The main information of the electrical components includes pump body data and fan data, and the secondary information of the auxiliary aspects includes pipeline data and packing data. The pump body data, pipeline data, fan data, and packing data are respectively marked as BI, GI, FI, and TI, and the comprehensive operation risk coefficient Q is obtained according to the formula Q = (BI * e1 + GI * e2 + FI * e3 + TI * e4) / 2, where e1, e2, e3, and e4 respectively represent the preset proportional factor coefficients of the pump body data, pipeline data, fan data, and packing data. The proportional factor coefficients are used to correct the deviations that occur in the formula calculation process of each parameter, so as to make the calculation result more accurate. e1, e2, e3, and e4 are all positive numbers greater than zero, and the comprehensive operation risk coefficient Q is compared and analyzed with the preset comprehensive operation risk coefficient Qi in the processor; when Q ≥ Qi, an equipment self-fault signal is generated, and when Q < Qi, an equipment normal operation signal is generated; the obtained equipment self-fault signal is sent to the warning module, and the obtained equipment normal operation signal is sent to the integration module; It should be noted that the pump body data is expressed as the number of times the pump body makes abnormal noise within the time threshold; the noise situations are as follows: Mechanical reasons: the rotating parts of the pump body, such as bearings or impellers, may be damaged, loose or improperly installed, resulting in friction, collision or imbalance during operation, which in turn causes noise. This noise usually manifests as metal-to-metal collision or harsh friction. Fluid reasons: The fluid flow inside the pump body may produce abnormal noise due to factors such as excessive inlet and outlet pressure, impurities or bubbles in the fluid, etc. These noises usually manifest as fluid impact sound, bubble bursting sound or sound similar to stones being thrown onto the pump casing. Electrical reasons: Abnormal operation of the motor, such as electromagnetic noise caused by motor overload, voltage instability or periodic changes in the magnetic field, may also be the source of noise. The noise caused by electrical problems usually manifests as buzzing or electromagnetic interference when the motor is running. Pump body data is collected through a noise sensor installed on the base of the circulating pump. The pipeline data is represented by the sum of the water pressure difference between the input end and the output end of the characteristic pipeline within the time threshold, and the characteristic pipeline is represented by the delivery pipe 42 and the spray part 2; the fan data is represented by the number of times the temperature value exceeds the preset temperature value within the time threshold; the filler data is represented by the blocked area of ​​the filler 6 surface; the pipeline data is collected by the water pressure sensor arranged in the characteristic pipeline, and the filler data is collected by the infrared sensor arranged on the inner wall of the shell 7; After receiving the fault signal of the equipment itself, the early warning module immediately converts it into text and sends it to the user's mobile terminal; By sending the equipment's own fault signal to the early warning module, a quick response to the cooling tower failure can be achieved. The early warning module can take corresponding early warning measures based on the received equipment's own fault signal, such as issuing an alarm, initiating an emergency plan, etc., to ensure that a quick response can be made when risks occur to reduce losses.

[0020] After receiving the normal operation signal of the equipment and the overall cooling risk signal, the processor of the integration module synchronously obtains the temperature difference value that generates the overall cooling risk signal, and performs a secondary comparative analysis on the temperature difference value and the preset range; if the temperature difference value is greater than or equal to the maximum value of the preset range, a primary control signal is generated, indicating that the cooling tower has no faults and the cooling effect of the circulating water is too good, resulting in the water temperature of the circulating water being too low after cooling; if the temperature difference value is less than or equal to the minimum value of the preset range, a secondary control signal is generated, indicating that the cooling tower has no faults and the cooling effect of the circulating water is too poor, and both the primary control signal and the secondary control signal are sent to the execution module; After receiving the primary control signal, the execution module immediately adjusts the power of the circulation pump 41 to the first gear. At this time, the thrust of the thrust spring 457 is greater than the impact force of the cooling water, so that the piston plate 455 is squeezed onto the lower limit ring 453. At the same time, the movable rod 456 pulls the lever 458 downward, so that the lever 458 presses the louver plate 461 downward, so that the gap between the multiple louver plates 461 is reduced, the air intake of the cooling tower is reduced, and the power of the fan 8 is controlled to the first gear; After receiving the secondary control signal, the execution module immediately adjusts the power of the circulation pump 41 to the second gear. At this time, the thrust of the thrust spring 457 is less than the impact force of the cooling water, the piston plate 455 is squeezed under the upper limit ring 454, and the movable rod 456 pushes the lever 458 upward to expand the gap between the louver plates 461, thereby increasing the air intake and controlling the power of the fan 8 to the second gear.

[0021] In this embodiment: the temperature difference is diagnosed by the diagnosis module to determine the cooling effect of the cooling tower. When the cooling effect is not good, an overall cooling risk signal is generated, indicating that the parameters of the cooling tower itself or the components in the cooling tower need to be optimized. Therefore, the overall cooling risk signal is first sent to the fault detection module to check whether there is a fault in the cooling tower itself. When a fault occurs, the obtained equipment fault signal is first sent to the early warning module for early warning, so as to facilitate rapid maintenance of the cooling tower. When there is no problem with the cooling tower itself, the parameters of its internal components are optimized and adjusted through the integration module and the signal execution module to improve the cooling effect of the cooling tower.

[0022] The working process and principle of the present invention are as follows: The circulating water carrying waste heat enters the cooling tower through the input end of the cooling pipe fitting 3. At this time, the circulating pump 41 transports the cooling water at the bottom of the cooling tower to the spray part 2, and then cools the circulating water inside the cooling pipe fitting 3 through the spray part 2. The cooled circulating water is discharged through the output end of the cooling pipe fitting 3. At the same time, the outside air enters the cooling tower through the vent 44, cools the cooling water on the filler 6, and the air is discharged to the outside of the cooling tower through the rotation speed of the fan 8, thereby continuously cooling the circulating water.

[0023] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An intelligent self-water replenishing cooling tower with adjustable air inlet volume, comprising a shell (7), a spray element (2) is arranged at the upper part of the shell (7), a water collecting tank (5) is arranged below the inner wall of the shell (7), and a control panel (9) is arranged on the outer wall below the shell (7), characterized in that: A regulating mechanism (4) for adjusting the air intake volume is disposed on both sides of the bottom wall of the shell (7); the regulating mechanism (4) comprises a circulation pump (41) disposed at the bottom of the shell (7); an output end of the circulation pump (41) is connected to a delivery pipe (42); and a ventilation hole (44) is provided on the side wall of the shell (7); A shutter assembly (46) is arranged in the ventilation opening (44), the shutter assembly (46) comprising a plurality of shutter plates (461), and a slide groove (464) is provided on the outer wall of the shutter plate (461) at the bottom; The bottom side wall of the delivery pipe (42) is connected to the slide groove (464) through an adjustment component (45). The adjustment component (45) comprises a pressure pipe (451) connected to the side wall of the delivery pipe (42). The output end of the pressure pipe (451) is connected to a limiting cylinder (452). A piston plate (455) is slidably arranged in the limiting cylinder (452). A movable rod (456) is fixedly connected to the top of the piston plate (455). An upper limiting ring (454) and a lower limiting ring (453) are arranged in the limiting cylinder (452). The movable rod (456) movably passes through the outside of the limiting cylinder (452) and is fixedly connected to a shifting rod (458). The shifting rod (458) is movably matched with the slide groove (464). A thrust spring (457) is sleeved on the outer wall of the movable rod (456).

2. The intelligent self-water replenishing cooling tower with adjustable air inlet volume according to claim 1 is characterized in that: The upper limit ring (454) and the lower limit ring (453) are respectively arranged at the upper middle portion and the lower middle portion inside the limit cylinder (452), and the thrust spring (457) is arranged between the piston plate (455) and the limit cylinder (452).

3. The intelligent self-water replenishing cooling tower with adjustable air inlet volume according to claim 1 is characterized in that: The output end of the circulation pump (41) extends into the housing (7) through a delivery pipe (42) and is connected to the spray element (2), and the input end of the circulation pump (41) is connected to the water collecting tank (5) through a water pumping pipe (43).

4. The intelligent self-water replenishing cooling tower with adjustable air inlet volume according to claim 1 is characterized in that: The outer wall of the louver plate (461) is rotatably connected to the vent (44) via a movable shaft (463), and a connecting plate (462) is rotatably provided at the end of the plurality of louver plates (461) away from the slide groove (464).

5. The intelligent self-water replenishing cooling tower with adjustable air inlet volume according to claim 1 is characterized in that: The control panel (9) comprises a processor, a parameter acquisition module, a diagnosis module, a fault troubleshooting module, an early warning module, an integration module and an execution module; The parameter acquisition module is used to acquire the temperature difference of the circulating water in the cooling pipe (3) of the cooling tower within a time threshold, and send the obtained temperature difference to the diagnosis module through the processor; After receiving the temperature difference value, the diagnosis module immediately compares and analyzes the temperature difference value with the preset range in the processor for the first time; if the temperature difference value is within the preset range, no signal is generated; if the temperature difference value is outside the preset range, an overall cooling risk signal is generated, and the obtained overall cooling risk signal is sent to the fault detection module and the integration module; After receiving the overall cooling risk signal, the fault troubleshooting module immediately collects the main information and auxiliary information of the electrical components of the cooling tower, obtains the comprehensive operation risk coefficient according to the formula, and compares and analyzes the comprehensive operation risk coefficient with the comprehensive operation risk coefficient preset in the processor, sends the obtained equipment fault signal to the early warning module, and sends the obtained equipment normal operation signal to the integration module; After receiving the fault signal of the equipment itself, the early warning module immediately converts it into text and sends it to the user terminal; After receiving the normal operation signal of the equipment and the overall cooling risk signal, the processor of the integration module synchronously obtains the temperature difference value that generates the overall cooling risk signal, and performs a secondary comparative analysis on the temperature difference value and the preset range; If the temperature difference is greater than or equal to the maximum value of the preset range, a first-level control signal is generated, indicating that the cooling tower is not faulty and the cooling effect of the circulating water is too good, resulting in the water temperature of the circulating water being too low after cooling; If the temperature difference is less than or equal to the minimum value of the preset range, a secondary control signal is generated, indicating that the cooling tower has no faults and the circulating water cooling effect is too poor, and the obtained primary control signal and secondary control signal are sent to the execution module.

6. The intelligent self-water replenishing cooling tower with adjustable air inlet volume according to claim 5 is characterized in that: After receiving the primary control signal, the execution module immediately adjusts the power of the circulation pump (41) to the first gear. At this time, the thrust of the thrust spring (457) is greater than the impact force of the cooling water, so that the piston plate (455) is squeezed onto the lower limit ring (453), and the movable rod (456) pulls the lever (458) downward, so that the lever (458) presses the louver plate (461) downward, so that the gap between the plurality of louver plates (461) is reduced, the air intake of the cooling tower is reduced, and the power of the fan (8) is controlled to the first gear; After receiving the secondary control signal, the execution module immediately adjusts the power of the circulation pump (41) to the second gear. At this time, the thrust of the thrust spring (457) is less than the impact force of the cooling water, the piston plate (455) is squeezed under the upper limit ring (454), and the movable rod (456) pushes the lever (458) upward to expand the gap between the louver plates (461), thereby increasing the air intake and controlling the power of the fan (8) to the second gear.

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