Cooling tower air inlet amount automatic regulation and control device based on environment temperature regulation

Abstract

The invention discloses a cooling tower air inlet amount automatic regulation and control device based on environment temperature regulation, and relates to the technical field of cooling towers, the cooling tower air inlet amount automatic regulation and control device comprises a cooling tower body, an air outlet pipe is installed at the top end of the cooling tower body, a motor cover is installed on the outer side of the air outlet pipe, and a rotating shaft is rotatably installed on the inner side of the air outlet pipe; a rotating shaft is installed on the outer side of the air inlet filter screen, a fixing cylinder is installed at one end of the rotating shaft, a fan motor is installed on the inner side of the fixing cylinder, and cooling fan blades are connected to the transmission end of the fan motor. The air inlet filter screen is arranged in the channel, then the blocked channel can be dredged, the cooling efficiency of the cooling tower does not need to be worried about when the air volume is small in winter, the air inlet filter screen can be cleaned up after continuous blowing in one winter, then the directions of the fixed cylinder and the fan motor are turned again in the next summer, and therefore the cooling efficiency in the summer is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of cooling tower technology, specifically to an automatic air intake control device for cooling towers based on ambient temperature regulation. Background Technology

[0002] This cooling tower temperature control device is an advanced energy-saving system integrating modern sensing technology, intelligent control algorithms, and variable frequency drive technology. Its core function is to achieve precise and automated control of the airflow of the cooling tower fan motor, thereby minimizing energy consumption while ensuring the required cooling water temperature for the production process. Its working principle is closely aligned with the heat exchange characteristics of the cooling tower: when the ambient temperature is low, the temperature difference between air and water is large, and the cooling driving force is strong, so the device automatically reduces the fan motor speed to reduce unnecessary airflow output and energy waste; when the ambient temperature rises, the fan motor speed is increased accordingly to increase the cooling airflow and ensure that the cooling capacity always meets the demand. The airflow of the fan motor also differs in winter and summer, generally with a larger airflow in summer and a smaller airflow in winter. The device automatically adjusts the airflow to meet the cooling requirements. However, the air intake of existing cooling towers is generally located near the ground. Because hot air rises and cold air sinks, the air intake of the cooling tower will be blocked by a large amount of dust and debris. Over time, this will affect the air intake and require manual cleaning, which is not only time-consuming and laborious but also difficult to clean thoroughly, thus affecting the air intake efficiency of the cooling tower. In order to avoid the above technical problems, it is necessary to provide an automatic air intake control device for cooling towers based on ambient temperature regulation to overcome the defects in the existing technology. Summary of the Invention

[0003] This invention provides an automatic air intake control device for cooling towers based on ambient temperature regulation. It can effectively solve the problem mentioned in the background art that the air intake of existing cooling towers is generally located near the ground. Because hot air rises and cold air sinks, the air intake of the cooling tower will be blocked by a large amount of dust and debris. After long-term use, the air intake will be affected and manual cleaning is required, which is not only time-consuming and laborious but also difficult to clean thoroughly, thus affecting the air intake efficiency of the cooling tower.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an automatic air intake control device for a cooling tower based on ambient temperature regulation, comprising a cooling tower body, wherein a rotating component is installed on the inner side of the cooling tower body; The rotating assembly includes an air outlet pipe; An air outlet pipe is installed at the top of the cooling tower body. A motor cover is installed on the outside of the air outlet pipe. A rotating shaft is rotatably installed on the inside of the air outlet pipe. A fixed cylinder is installed at one end of the rotating shaft. A fan motor is installed on the inside of the fixed cylinder. A cooling fan blade is connected to the drive end of the fan motor. A movable groove is provided on the inner side of the air outlet pipe at a position corresponding to the rotating shaft, and the rotating shaft is rotatably connected to the air outlet pipe through the movable groove.

[0005] According to the above technical solution, an installation block is welded to the outer side of the air outlet duct, a bearing is embedded in the inner side of the installation block, a snap-fit ​​rod is rotatably installed on the inner side of the bearing, a sliding cylinder is welded to one end face of the installation block, a limit rod is slidably installed on the inner side of the sliding cylinder, a magnetic sheet is welded to the top of the limit rod, a return spring is sleeved on the outer side of the limit rod, a positioning frame is welded to the top of the installation block, and an electromagnet is installed on the inner side of the positioning frame.

[0006] According to the above technical solution, a rotating fixing groove is provided on the inner side of the locking rod at the position corresponding to the limiting rod, and the limiting rod is locked with the locking rod through the rotating fixing groove.

[0007] According to the above technical solution, the outer diameter of the snap-fit ​​rod is equal to the inner diameter of the bearing, and one end of the snap-fit ​​rod is welded to the fixed cylinder.

[0008] According to the above technical solution, the electromagnet is installed inside the positioning frame at the position corresponding to the magnetic sheet, one end of the return spring is spot-welded to the magnetic sheet, and the other end of the return spring is spot-welded to the sliding cylinder.

[0009] According to the above technical solution, a connecting block is installed on the outside of the air outlet pipe, a reversing motor is installed on the inside of the motor cover, a waterproof cover is sleeved on the outside of the mounting block, a snap-fit ​​cylinder is sleeved on the top of the air outlet pipe, a dustproof net is installed on the inside of the snap-fit ​​cylinder, and an air inlet filter is installed on the bottom of the outside of the cooling tower body. There are four air intake filters, which are installed on the four sides of the bottom of the cooling tower.

[0010] According to the above technical solution, the transmission end of the commutator motor is connected to the rotating shaft, and the input ends of the fan motor, electromagnet and commutator motor are all electrically connected to the output end of the external power supply.

[0011] According to the above technical solution, a shielding component is installed at the top of the cooling tower body; The shielding assembly includes a support arm; A support arm is installed at the top of the cooling tower body. A rotating groove is opened on the inner side of the support arm. A rotating shaft is rotatably installed on the inner side of the rotating groove. A rain shield is welded on the outer side of the rotating shaft. An extension frame is welded on one end face of the rain shield. A pulling tube is rotatably installed on the inner side of the extension frame. A limiting seat is installed on one end face of the cooling tower body. A bottom adjusting cylinder is rotatably installed on the inner side of the limiting seat. A hydraulic telescopic rod is installed on the outer side of the bottom adjusting cylinder. A pulling rod is connected to the telescopic end of the hydraulic telescopic rod. A guide groove is opened at the top of the rain shield.

[0012] According to the above technical solution, two support arms are welded together, and the two support arms are symmetrically installed at the top of the cooling tower body.

[0013] According to the above technical solution, a plurality of guide channels are provided, and the plurality of guide channels are equally spaced at the top position of the rain shield.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a scientific and reasonable structure and is safe and convenient to use. 1. Equipped with a rotating component, when cooling the tower is needed, the fan motor can be turned on to blow cold air from outside into the tower body. This cold air will then blow outward through the air intake filter. The high-speed airflow continuously blows away dust and debris from the outer surface of the air intake filter, clearing any blockages. In winter, the airflow requirement is lower, so there is no need to worry about the cooling efficiency of the tower. After a winter of continuous blowing, the air intake filter will be cleaned. Then, in the following summer, the direction of the fixed cylinder and fan motor can be reversed again to ensure cooling efficiency in the summer.

[0015] 2. Equipped with a shielding component, the rain shield rotates at the top of the support arm, tilting to cover the top of the air outlet duct to prevent rainwater from entering the duct during rainy or snowy weather. This prevents rainwater from suddenly diluting the concentration of the chemical agents added to the circulating water for corrosion and scale prevention, ensuring the cooling efficiency of the cooling water. Then, during the non-rainy season, the hydraulic telescopic rod is retracted, and the pull rod is pulled down, which drives the extension frame to rotate downward. Then, the extension frame can drive the rain shield at the top of the support arm to rotate to a vertical position, thus ensuring that the rain shield does not block the airflow at the air outlet duct location, further ensuring heat dissipation efficiency. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0017] In the attached diagram: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the installation structure of the snap-fit ​​sleeve of the present invention; Figure 3 This is a schematic diagram of the rotating assembly of the present invention; Figure 4 This is a schematic diagram of the installation structure of the fixing cylinder of the present invention; Figure 5 This is a schematic diagram of the installation structure of the limiting rod of the present invention; Figure 6 This is a schematic diagram of the shielding component of the present invention; Figure 7 This is a schematic diagram of the installation structure of the hydraulic telescopic rod of the present invention; Labels in the diagram: 1. Cooling tower body; 2. Rotating assembly; 201. Air outlet duct; 202. Motor cover; 203. Rotating shaft; 204. Fixed cylinder; 205. Fan motor; 206. Cooling fan blades; 207. Mounting block; 208. Bearing; 209. Clip rod; 210. Sliding cylinder; 211. Limit rod; 212. Magnetic sheet; 213. Return spring; 214. Positioning frame; 215. Electromagnet; 216. Connecting block; 217. Reversing motor; 218. Waterproof cover; 219. Clip cylinder; 220. Dustproof net; 221. Air inlet filter; 3. Shielding assembly; 301. Support arm; 302. Rotating groove; 303. Rotating shaft; 304. Rain shield; 305. Extension frame; 306. Pulling cylinder; 307. Limiting seat; 308. Bottom adjusting cylinder; 309. Hydraulic telescopic rod; 310. Pulling rod; 311. Flow guide groove. Detailed Implementation

[0018] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0019] Example: Figure 1-7 As shown, the present invention provides a technical solution, an automatic control device for cooling tower air intake based on ambient temperature regulation, including a cooling tower body 1, and a rotating component 2 installed on the inner side of the cooling tower body 1. The rotating assembly 2 includes an air outlet duct 201, a motor cover 202, a rotating shaft 203, a fixed cylinder 204, a fan motor 205, a cooling fan blade 206, a mounting block 207, a bearing 208, a snap-fit ​​rod 209, a sliding cylinder 210, a limit rod 211, a magnetic sheet 212, a return spring 213, a positioning frame 214, an electromagnet 215, a connecting block 216, a reversing motor 217, a waterproof cover 218, a snap-fit ​​cylinder 219, a dustproof net 220, and an air inlet filter 221. An air outlet pipe 201 is installed at the top of the cooling tower body 1. A motor cover 202 is installed on the outside of the air outlet pipe 201. A rotating shaft 203 is rotatably installed on the inside of the air outlet pipe 201. A fixed cylinder 204 is installed at one end of the rotating shaft 203. A fan motor 205 is installed on the inside of the fixed cylinder 204. A cooling fan blade 206 is connected to the transmission end of the fan motor 205. An installation block 207 is welded to the outer side of the air outlet duct 201. A bearing 208 is embedded in the inner side of the installation block 207. A locking rod 209 is rotatably mounted on the inner side of the bearing 208. The outer diameter of the locking rod 209 is equal to the inner diameter of the bearing 208. One end of the locking rod 209 is welded to the fixed cylinder 204, which facilitates stable reversal. A sliding cylinder 210 is welded to one end face of the installation block 207. A limit rod 211 is slidably mounted on the inner side of the sliding cylinder 210. A rotation fixing groove is opened on the inner side of the locking rod 209 at the corresponding position of the limit rod 211. 11. The rotating fixing groove is engaged with the snap-fit ​​rod 209, which facilitates quick fixation. A magnetic sheet 212 is welded to the top of the limiting rod 211, and a return spring 213 is sleeved on the outside of the limiting rod 211. A positioning frame 214 is welded to the top of the mounting block 207. An electromagnet 215 is installed on the inner side of the positioning frame 214. The electromagnet 215 is installed on the inner side of the positioning frame 214 at the position corresponding to the magnetic sheet 212. One end of the return spring 213 is spot welded to the magnetic sheet 212, and the other end of the return spring 213 is spot welded to the sliding cylinder 210, which facilitates quick reset. A connecting block 216 is installed on the outside of the air outlet duct 201, a reversing motor 217 is installed on the inside of the motor cover 202, a waterproof cover 218 is sleeved on the outside of the mounting block 207, a snap-fit ​​sleeve 219 is sleeved on the top of the air outlet duct 201, a dustproof net 220 is installed on the inside of the snap-fit ​​sleeve 219, an air intake filter 221 is installed on the bottom of the outside of the cooling tower body 1, four air intake filters 221 are provided, the four air intake filters 221 are installed on the four sides of the bottom of the cooling tower body 1 to facilitate increasing the air intake volume, the transmission end of the reversing motor 217 is connected to the rotating shaft 203, and the input ends of the fan motor 205, electromagnet 215 and reversing motor 217 are all electrically connected to the output end of the external power supply.

[0020] A shielding assembly 3 is installed at the top of the cooling tower body 1; The shielding assembly 3 includes a support arm 301, a rotating groove 302, a rotating shaft 303, a rain shield 304, an extension frame 305, a pulling cylinder 306, a limiting seat 307, a bottom adjusting cylinder 308, a hydraulic telescopic rod 309, a pulling rod 310, and a guide groove 311. A support arm 301 is installed at the top of the cooling tower body 1. Two support arms 301 are welded together and symmetrically installed at the top of the cooling tower body 1 to increase rotational stability. A rotation groove 302 is formed on the inner side of the support arm 301. A rotating shaft 303 is rotatably installed on the inner side of the rotation groove 302. A rain shield 304 is welded to the outer side of the rotating shaft 303. An extension frame 305 is welded to one end face of the rain shield 304. A pull rod is rotatably installed on the inner side of the extension frame 305. The cooling tower body 1 has a limiting seat 307 installed on one side end face of the cylinder 306. A bottom adjusting cylinder 308 is rotatably installed on the inner side of the limiting seat 307. A hydraulic telescopic rod 309 is installed on the outer side of the bottom adjusting cylinder 308. A pulling rod 310 is connected to the telescopic end of the hydraulic telescopic rod 309. A guide groove 311 is opened at the top of the rain shield 304. Several guide grooves 311 are opened at equal intervals at the top position of the rain shield 304 to facilitate rapid flow.

[0021] The working principle and usage process of this invention are as follows: First, when the operator uses the cooling tower in summer, the fan motor 205 is turned on at full speed. At this time, the fan will drive the cooling fan blades 206 to rotate at full speed, and then external cold air can be drawn into the interior of the cooling tower body 1 from the bottom air intake filter 221, thereby participating in the cooling work of the entire cooling tower. At this time, a large amount of external cold air will carry dust and various debris into the position of the air intake filter 221. Then the dust and debris will be intercepted by the air intake filter 221 and adsorbed on the outer surface of the air intake filter 221. The longer the summer is used, the more dust will clog the air intake filter 221. After a large amount of dust clogging, the air intake will be affected, thereby reducing the heat dissipation efficiency of the cooling tower. After entering winter, the required air intake will decrease. When the air intake is reduced to one-third of that in summer, the operator controls the electromagnet 215 to start. Then, the electromagnet 215 will attract the magnetic piece 212, and the magnetic piece 212 will move upward against the tension of the return spring 213. At this time, the limit rod 211 can be pulled out from the inside of the locking rod 209, thereby releasing the position restriction on the locking rod 209. Next, the operator turns on the reversing motor 217. The reversing motor 217 will drive the rotating shaft 203 to rotate inside the connecting block 216, thereby driving the fixed cylinder 204 to rotate through the rotating shaft 203. Then, the fixed cylinder 204 drives the fan motor 205 and the cooling fan blades 206 to rotate, thereby turning the direction of the cooling fan blades 206 downward and changing the airflow direction of the entire cooling tower. At this time, the electromagnet 215 inside the positioning frame 214 is turned off, thereby releasing the attraction force of the electromagnet 215 on the magnetic sheet 212. Then, under the pull of the return spring 213, the limit rod 211 will slide downward inside the sliding cylinder 210, thereby re-inserting into the inside of the locking rod 209 and fixing the position of the locking rod 209 and the fixed cylinder 204. When cooling is needed, the fan motor 205 can be turned on to blow cold air from outside into the cooling tower body 1. This cold air will then be blown out through the air intake filter 221. At this time, the dust and debris on the outer surface of the air intake filter 221 can be blown away by the high-speed airflow. Then the blocked passage can be cleared. In winter, the air volume requirement is small, so there is no need to worry about the cooling efficiency of the cooling tower. After a winter of continuous blowing, the air intake filter 221 will be cleaned. Then, in the following summer, the direction of the fixed cylinder 204 and the fan motor 205 can be reversed again to ensure the cooling efficiency in summer. Finally, during the rainy season, the hydraulic telescopic rod 309 can be extended outward. At this time, the bottom end of the hydraulic telescopic rod 309 will rotate inside the limit seat 307, which will then drive the pull rod 310 to move to the top. Subsequently, the pull cylinder 306 will rotate inside the extension frame 305, thereby pushing the extension frame 305 upward. Then, the rain shield 304 can rotate inside the rotating groove 302 via the rotating shaft 303. Then, the rain shield 304 will rotate at the top of the support arm 301, tilting the rain shield 304 to cover the top of the air outlet duct 201, thereby preventing rainwater from entering the interior of the air outlet duct 201 during rainy or snowy weather. This also prevents rainwater from suddenly diluting the concentration of the chemical agents added to the circulating water for corrosion and scale prevention, ensuring the cooling efficiency of the cooling water. Subsequently, during the non-rainy season, the hydraulic telescopic rod 309 is retracted, and then the pulling rod 310 is pulled down, thereby causing the extension frame 305 to rotate downward. Then, the extension frame 305 can drive the rain shield 304 to rotate to a vertical position at the top of the support arm 301, thereby ensuring that the rain shield 304 will not block the airflow at the air outlet 201 position, further ensuring heat dissipation efficiency.

[0022] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic airflow control device for a cooling tower based on ambient temperature regulation, comprising a cooling tower body (1), characterized in that: A rotating assembly (2) is installed on the inner side of the cooling tower body (1). The rotating assembly (2) includes an air outlet pipe (201); An air outlet pipe (201) is installed at the top of the cooling tower body (1). A motor cover (202) is installed on the outside of the air outlet pipe (201). A rotating shaft (203) is rotatably installed on the inside of the air outlet pipe (201). A fixed cylinder (204) is installed at one end of the rotating shaft (203). A fan motor (205) is installed on the inside of the fixed cylinder (204). A cooling fan blade (206) is connected to the transmission end of the fan motor (205). The inner side of the air outlet pipe (201) is provided with a movable groove at the position corresponding to the rotating shaft (203), and the rotating shaft (203) is rotatably connected to the air outlet pipe (201) through the movable groove.

2. The automatic airflow control device for cooling towers based on ambient temperature regulation according to claim 1, characterized in that: An installation block (207) is welded to the outside of the air outlet pipe (201). A bearing (208) is embedded in the inside of the installation block (207). A snap-fit ​​rod (209) is rotatably installed on the inside of the bearing (208). A sliding cylinder (210) is welded to one end face of the installation block (207). A limit rod (211) is slidably installed on the inside of the sliding cylinder (210). A magnetic sheet (212) is welded to the top of the limit rod (211). A return spring (213) is sleeved on the outside of the limit rod (211). A positioning frame (214) is welded to the top of the installation block (207). An electromagnet (215) is installed on the inside of the positioning frame (214).

3. The automatic airflow control device for cooling towers based on ambient temperature regulation according to claim 2, characterized in that: The inner side of the locking rod (209) is provided with a rotating fixing groove at the position corresponding to the limiting rod (211), and the limiting rod (211) is locked with the locking rod (209) through the rotating fixing groove.

4. The automatic airflow control device for cooling towers based on ambient temperature regulation according to claim 2, characterized in that: The outer diameter of the snap-fit ​​rod (209) is equal to the inner diameter of the bearing (208), and one end of the snap-fit ​​rod (209) is welded to the fixed cylinder (204).

5. The automatic airflow control device for cooling towers based on ambient temperature regulation according to claim 2, characterized in that: The electromagnet (215) is installed inside the positioning frame (214) at the position corresponding to the magnetic plate (212). One end of the reset spring (213) is spot welded to the magnetic plate (212), and the other end of the reset spring (213) is spot welded to the sliding cylinder (210).

6. The automatic air intake control device for a cooling tower based on ambient temperature regulation according to claim 2, characterized in that: A connecting block (216) is installed on the outside of the air outlet pipe (201), a reversing motor (217) is installed on the inside of the motor cover (202), a waterproof cover (218) is sleeved on the outside of the mounting block (207), a snap-fit ​​cylinder (219) is sleeved on the top of the air outlet pipe (201), a dustproof net (220) is installed on the inside of the snap-fit ​​cylinder (219), and an air inlet filter (221) is installed on the bottom of the outside of the cooling tower body (1). Four air intake filters (221) are provided, and the four air intake filters (221) are installed on the four sides of the bottom of the cooling tower body (1).

7. The automatic airflow control device for cooling towers based on ambient temperature regulation according to claim 6, characterized in that: The transmission end of the commutator motor (217) is connected to the rotating shaft (203), and the input ends of the fan motor (205), electromagnet (215) and commutator motor (217) are all electrically connected to the output end of the external power supply.

8. The automatic airflow control device for cooling towers based on ambient temperature regulation according to claim 1, characterized in that: The top of the cooling tower body (1) is equipped with a shielding component (3). The shielding component (3) includes a support arm (301); The top of the cooling tower body (1) is equipped with a support arm (301), and a rotating groove (302) is provided on the inner side of the support arm (301). A rotating shaft (303) is rotatably installed on the inner side of the rotating groove (302). A rain shield (304) is welded on the outer side of the rotating shaft (303). An extension frame (305) is welded on one end face of the rain shield (304). A pulling cylinder (306) is rotatably installed on the inner side of the extension frame (305). A limiting seat (307) is installed on one side end face of the cooling tower body (1). A bottom adjusting cylinder (308) is rotatably installed on the inner side of the limiting seat (307). A hydraulic telescopic rod (309) is installed on the outer side of the bottom adjusting cylinder (308). A pulling rod (310) is connected to the telescopic end of the hydraulic telescopic rod (309). A guide groove (311) is opened at the top of the rain shield (304).

9. The automatic airflow control device for cooling towers based on ambient temperature regulation according to claim 8, characterized in that: Two support arms (301) are welded together, and the two support arms (301) are symmetrically installed at the top of the cooling tower body (1).

10. The automatic airflow control device for cooling towers based on ambient temperature regulation according to claim 8, characterized in that: The guide groove (311) is provided in a plurality of places, and the plurality of guide grooves (311) are equally spaced at the top position of the rain shield (304).

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