A hot air backflow prevention device for evaporative condenser and use method thereof

Abstract

The invention relates to the technical field of hot air backflow prevention for condensers, and discloses a hot air backflow prevention device for an evaporative condenser and a method for using the device, including a backflow prevention component, wherein the backflow prevention component includes a fixed bracket. The invention utilizes the hot air discharged from the air outlet, specifically when the hot air discharged from the air outlet touches an isolation plate with a lower temperature, a large number of water droplets will be generated on the surface of the isolation plate, and at the same time, the hot air or natural wind blown out from the air outlet will blow the windward plate, and due to the inclined design of the windward plate, the windward plate will drive a scraper rod to slide toward the back, and the scraper rod will scrape off the condensed water droplets on the isolation plate while sliding, and as the scraper rod moves, the slide plate will be squeezed by the extension frame and then slide toward the front, and the slide plate will drive the rack to move in the process of moving toward the front, and the rack will drive the rotating rod to rotate through the gear, and the rotating rod will drive the windward plate to rotate through the support block and the rotating block, so that the windward plate changes direction, and at this time, the hot air blowing the windward plate will drive the scraper rod to move toward the front.

Description

Technical Field

[0001] The invention relates to the technical field of condenser hot air backflow prevention equipment, and in particular to an evaporative condenser hot air backflow prevention device and a use method thereof. Background Art

[0002] An evaporative condenser is a cooling device that combines evaporation and condensation functions and is commonly used in industrial and commercial refrigeration systems. Its working principle utilizes the property of water absorbing heat when evaporating, and removes heat from the refrigeration cycle through the cooling fluid. Due to the characteristics of downstream equipment and for the convenience of transportation (limitation of transportation height), the air inlet in the existing evaporative condenser is adjacent to the position of the fan barrel. The high-temperature humid air coming out of the fan barrel will flow back into the air inlet, generating hot air reflux, which will reduce the heat exchange effect of the downstream evaporative condenser. Therefore, it is necessary to use a device to prevent hot air reflux. The device usually includes a windshield or a partition screen, which can block or reduce the possibility of hot air entering the condenser.

[0003] Since the high-temperature gas discharged from the condenser contains a large amount of high-temperature water vapor, when the water vapor encounters the isolation plate in a relatively low temperature state, water droplets will continue to form on the isolation plate. If it is not cleaned in time, the isolation plate may be corroded and damaged by water droplets after long-term use, reducing the service life of the device. In response to the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an evaporative condenser hot air backflow prevention device and a method of use, including a backflow prevention component, the backflow prevention component includes a fixed bracket, the inner wall of the fixed bracket is rotatably connected to an isolation plate, and a ventilation cavity is opened inside the isolation plate, and also includes:

[0005] A dehumidification component, the dehumidification component comprises a scraper rod slidably connected to the outer surface of the isolation plate, a fixing box is fixedly connected to the left side of the scraper rod, and a limit stopper is fixedly connected to the inner wall of the fixing box;

[0006] The drainage assembly includes a limiting ring fixedly connected to the bottom of the scraper rod, the outer surface of the limiting ring is rotatably connected to the scraper, and the outer surface of the scraper is slidably connected to the water collecting tank;

[0007] The angle-changing component comprises a rotating rod 2 which is rotatably connected to the right side of the scraper rod, a gas compression rod is fixedly connected to the right side of the rotating rod 2, and a rotating rod 1 is slidably connected to the outer surface of the gas compression rod.

[0008] Preferably, an extension frame is fixedly connected to the left side of the isolation plate, and there are two extension frames. The right sides of the two extension frames are rotatably connected to an air pump. The bottom of the fixed bracket is fixedly connected to a condenser. The bottom of the air pump is rotatably connected to the top of the condenser. An air outlet and an air inlet are respectively provided on the top of the condenser. By setting an isolation plate, the hot air discharged from the air outlet can be blocked to prevent the hot air from flowing back.

[0009] Preferably, a slide plate is slidably connected to the inner wall of the fixed box, a clamping block is slidably connected to the inner wall of the slide plate, a spring 1 is fixedly connected to the top of the clamping block, the top of the spring 1 is fixedly connected to the top of the inner wall of the slide plate, a rack is fixedly connected to the top of the slide plate, a gear is meshingly connected to the right side of the rack, a rotating rod is fixedly connected to the inner wall of the gear, the bottom of the rotating rod is rotatably connected to the inner wall of the scraper rod, a supporting block is fixedly connected to the top of the rotating rod, a rotating block is rotatably connected to the inner wall of the support block, and a windward plate is fixedly connected to the left side of the rotating block, and the windward plate can be maintained in a position inclined toward the back or the front by setting the clamping block.

[0010] Preferably, the bottom of the water collection trough is fixedly connected to the top of the fixed bracket, and the inner wall of the water collection trough is slidably connected to a sliding arc plate. There are two sliding arc plates, and the two sliding arc plates are fixedly connected to connecting plates on the sides away from each other. The front and back sides of the water collection trough are fixedly connected to fixed plates, and the connecting plates are fixedly connected to sliding rods on the sides close to each other. The water collection trough can collect the falling water droplets in a unified manner. By setting the sliding arc plate, water can be prevented from overflowing from the top of the water collection trough when squeezing out drainage.

[0011] Preferably, the outer surface of the sliding rod is slidably connected to the inner wall of the fixed plate, and a spring 2 is sleeved on the outer surface of the sliding rod. The spring 2 is fixedly connected to the sliding rod at the end away from the fixed plate, and the spring 2 is fixedly connected to the fixed plate at the end close to the connecting plate. The front and back sides of the water collection trough are fixedly connected with water outlet pipes. By setting the spring 2, the spring 2 can be compressed to give the sliding arc plate space to continue moving, and the sliding arc plate can be reset.

[0012] Preferably, the outer surface of the second rotating rod is slidably connected to the inner wall of the first rotating rod, a spring three is sleeved on the outer surface of the air compressor rod, the left side of the spring three is fixedly connected to the right side of the second rotating rod, the right side of the spring three is fixedly connected to the inner wall of the first rotating rod, a slider is rotatably connected to the bottom of the first rotating rod, the outer surface of the slider is slidably connected to a limiting groove, the bottom of the limiting groove is fixedly connected to the top of the condenser, and an air guide hose is fixedly connected to the top of the first rotating rod. By setting the spring three, the force to reset the second rotating rod can be given.

[0013] Preferably, the air guide hose is fixedly connected to the top of the support block at one end away from the rotating rod, an air guide cavity is provided inside the support block, a rotating plate is rotatably connected to the inner wall of the support block, a rotating shaft is fixedly connected to the left side of the rotating plate, the outer surface of the rotating shaft is rotatably connected to the inner wall of the support block, the back side of the rotating shaft is fixedly connected to the front side of the rotating block, an air outlet is opened on the top of the support block, and the air outlet is provided to connect the interior of the support block so that the rotating plate can be pushed.

[0014] A device for preventing hot air backflow of an evaporative condenser and a method for using the device include the following steps:

[0015] S1: When using this device, first install it at a suitable position on the condenser, then start the air pump, adjust the angle of the isolation plate until the hot air cannot flow back, and use the hot air discharged from the air outlet to blow the windward plate to drive the scraper to scrape off the water droplets on the surface of the isolation plate;

[0016] S2: The scraper collects the water droplets that fall into the water collection tank during its movement, and then squeezes the sliding arc plate and finally squeezes the water out through the outlet pipe;

[0017] S3: During the rotation of the isolation plate, the scraper rod drives the second rotating rod, squeezes the air in the first rotating rod into the air guide cavity, and rotates the rotating shaft, which drives the rotating block to rotate, and finally drives the windward plate to rotate, thereby adjusting the inclination angle of the windward plate.

[0018] The present invention has the following beneficial effects:

[0019] (1) The present invention utilizes the hot air discharged from the air outlet, which will blow the windward plate to drive the scraper rod to scrape off the water droplets on the surface of the isolation plate, thereby improving the service life of the device. Specifically, when the hot air discharged from the air outlet touches the isolation plate with a lower temperature, a large number of water droplets will be generated on the surface of the isolation plate. At the same time, the hot air or natural wind blown out of the air outlet will blow the windward plate. Due to the inclined design of the windward plate, the windward plate will drive the scraper rod to slide toward the back. While sliding, the scraper rod will scrape off the condensed water droplets on the isolation plate. As the scraper rod moves, the slide plate will be squeezed by the extension frame and then slide toward the front. In the process of moving toward the front, the slide plate will drive the rack to move. The rack will drive the rotating rod to rotate through the gear. The rotating rod will drive the windward plate to rotate through the support block and the rotating block, so that the windward plate changes direction. At this time, the hot air blowing the windward plate will drive the scraper rod to move toward the front. This design can reciprocate the scraper rod to clean the water droplets on the surface of the isolation plate, thereby preventing the isolation plate from being eroded and damaged by water droplets after long-term use, thereby reducing the service life of the device.

[0020] (2) The present invention starts the air pump and adjusts the angle of the isolation plate until the hot air cannot flow back. At this time, the hot air will be blown away along the angle of the isolation plate. When there is natural wind from the outside, so that the hot air discharged from the air outlet can be reabsorbed, the air pump can be controlled to reduce the inclination angle between the isolation plate and the condenser, so that the isolation plate is more closely fitted to the air inlet opened at the top of the condenser, thereby ensuring that the hot air will not be reabsorbed. However, at this time, the isolation plate will affect the air intake of the air inlet at the top of the condenser. When the natural wind no longer causes the hot air to flow back, the air pump can be controlled to reset the isolation plate. When the wind blows into the ventilation cavity opened by the isolation plate, the isolation plate can be cooled, and the cavity width of the ventilation cavity gradually decreases, which can speed up the flow rate of the wind and make the cooling effect more obvious. The above design can prevent the backflow of hot air by changing the inclination angle of the isolation plate, and can cool the isolation plate so that the temperature of the side of the isolation plate facing the air inlet is always low, thereby preventing heat from being conducted to the air inlet at the top of the condenser through the isolation plate.

[0021] (3) The water droplets scraped off by the scraper rod of the present invention will fall into the water collection tank along the oblique edge of the scraper rod for collection. During the movement of the scraper rod, the scraper plate will be driven to move by the limit ring. During the movement of the scraper plate, the water droplets falling into the water collection tank will be gathered. When the scraper plate contacts the sliding arc plate, as the scraper rod continues to move, the scraper plate will squeeze the sliding arc plate. The sliding arc plate will drive the sliding rod to move through the connecting plate. The sliding rod will compress spring 2 to give the sliding arc plate space to continue to move. The scraper plate will continue to move and squeeze the water in the water collection tank, and finally squeeze the water out through the outlet pipe. This design can continuously collect and discharge the scraped water droplets, preventing the continuously generated water droplets from falling directly on the condenser, causing water to accumulate on the top of the condenser for a long time, thereby corroding and damaging the condenser.

[0022] (4) In order to make the surface of the isolation plate facing the air outlet always maintain a certain angle, the isolation plate will drive the second rotating rod through the scraper rod during the rotation process, and the second rotating rod will drive the air pressure rod to move. The air pressure rod will squeeze the air in the first rotating rod into the air guide hose, and the air guide hose will input the air into the air guide cavity. The air guide cavity will drive the rotating shaft to rotate by pushing the rotating plate, and the rotating shaft will drive the rotating block to rotate. The rotating block will drive the windward plate to rotate, and then the inclination angle of the windward plate can be adjusted. This design can continuously adjust the angle of the windward plate during the rotation of the isolation plate, so that the windward plate always maintains a certain angle, so that the windward plate can always use the hot air discharged from the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the three-dimensional decomposition structure of the present invention;

[0026] Figure 3 It is a schematic cross-sectional view of the interior of the isolation plate of the present invention;

[0027] Figure 4 It is an overall schematic diagram of the scraper rod of the present invention;

[0028] Figure 5 For the present invention Figure 4 A is a schematic diagram of the enlarged structure of the middle part;

[0029] Figure 6 This is a schematic diagram of the overall structure of the support block of the present invention;

[0030] Figure 7 It is a schematic diagram of the overall structure of the water collecting tank of the present invention;

[0031] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of B

[0032] Fig. 9 The overall structure diagram of the rotating rod of the present invention is

[0033] Fig.10 For the present invention Fig. 9 Schematic diagram of the enlarged structure of C

[0034] Fig.11 It is a schematic diagram of the working process of the present invention.

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] In the figure: 1. Anti-backflow assembly; 101. Fixed bracket; 102. Isolation plate; 103. Ventilation chamber; 104. Extension frame; 105. Air pump; 106. Condenser; 107. Air outlet; 2. Dehumidification assembly; 201. Scraper rod; 202. Fixed box; 203. Limit block; 204. Slide plate; 205. Block; 206. Spring 1; 207. Rack; 208. Gear; 209. Rotating rod; 210. Support block; 211. Rotating block; 212. Windward plate; 3. Drainage Assembly; 301, limit ring; 302, scraper; 303, water collecting trough; 304, sliding arc plate; 305, connecting plate; 306, fixing plate; 307, sliding rod; 308, spring 2; 309, water outlet pipe; 4, variable angle assembly; 401, limit groove; 402, slider; 403, rotating rod 1; 404, air pressure rod; 405, spring 3; 406, rotating rod 2; 407, air guide hose; 408, air guide cavity; 409, rotating plate; 410, rotating shaft; 411, air outlet. DETAILED DESCRIPTION

[0037] 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.

[0038] For example, see Figure 1 - Figure 6 The present invention is a device for preventing hot air from backflowing in an evaporative condenser and a method for using the device, comprising a backflow prevention component 1, wherein the backflow prevention component 1 comprises a fixed bracket 101, wherein an isolation plate 102 is rotatably connected to the inner wall of the fixed bracket 101, wherein a ventilation cavity 103 is provided inside the isolation plate 102, and further comprising:

[0039] The dehumidification component 2 includes a scraper rod 201 slidably connected to the outer surface of the isolation plate 102, a fixed box 202 is fixedly connected to the left side of the scraper rod 201, and a limited stopper 203 is fixedly connected to the inner wall of the fixed box 202;

[0040] The drainage assembly 3 includes a limiting ring 301 fixedly connected to the bottom of the scraper rod 201, a scraper 302 is rotatably connected to the outer surface of the limiting ring 301, and a water collecting tank 303 is slidably connected to the outer surface of the scraper 302;

[0041] The angle-changing assembly 4 includes a second rotating rod 406 rotatably connected to the right side of the scraper rod 201 , a compressor rod 404 is fixedly connected to the right side of the second rotating rod 406 , and a rotating rod 1 403 is slidably connected to the outer surface of the compressor rod 404 .

[0042] An extension frame 104 is fixedly connected to the left side of the isolation plate 102, and there are two extension frames 104. The right sides of the two extension frames 104 are rotatably connected to an air pump 105. A condenser 106 is fixedly connected to the bottom of the fixed bracket 101. The bottom of the air pump 105 is rotatably connected to the top of the condenser 106. An air outlet 107 and an air inlet are respectively provided on the top of the condenser 106. The present invention starts the air pump 105 and adjusts the angle of the isolation plate 102 until the hot air cannot flow back. At this time, the hot air will blow to a distance along the angle of the isolation plate 102. When there is natural wind from the outside, the hot air discharged from the air outlet 107 can be reabsorbed. The air pump 105 can be controlled to reduce the inclination angle between the isolation plate 102 and the condenser 106, so that the isolation plate 102 fits the condenser 106 more closely. 6, thereby ensuring that the hot air will not be reabsorbed, but at this time the isolation plate 102 will affect the air intake of the top air inlet of the condenser 106. When the natural wind no longer causes the hot air to flow back, the air pump 105 can be controlled to reset the isolation plate 102. When the wind blows into the ventilation cavity 103 opened by the isolation plate 102, the isolation plate 102 can be cooled, and the cavity width of the ventilation cavity 103 gradually decreases, which can speed up the flow rate of the wind and make the cooling effect more obvious. The above design can prevent the backflow of hot air by changing the inclination angle of the isolation plate 102, and can cool the isolation plate 102, so that the temperature of the side of the isolation plate 102 facing the air inlet is always low, thereby preventing heat from being conducted to the top air inlet of the condenser 106 through the isolation plate 102.

[0043] The inner wall of the fixed box 202 is slidably connected to a slide plate 204, the inner wall of the slide plate 204 is slidably connected to a block 205, the top of the block 205 is fixedly connected to a spring 206, the top of the spring 206 is fixedly connected to the top of the inner wall of the slide plate 204, the top of the slide plate 204 is fixedly connected to a rack 207, the right side of the rack 207 is meshed with a gear 208, the inner wall of the gear 208 is fixedly connected to a rotating rod 209, the bottom of the rotating rod 209 is rotatably connected to the inner wall of the scraper rod 201, and the rotating rod 207 is fixedly connected to the inner wall of the scraper rod 201. 09 A support block 210 is fixedly connected to the top, and a rotating block 211 is rotatably connected to the inner wall of the support block 210. A windward plate 212 is fixedly connected to the left side of the rotating block 211. The present invention utilizes the hot air discharged from the air outlet 107, and the hot air will blow the windward plate 212 to drive the scraper 201 to scrape off the water droplets on the surface of the isolation plate 102, thereby improving the service life of the device. Specifically, when the hot air discharged from the air outlet 107 touches the isolation plate 102 with a lower temperature, a large number of water droplets will be generated on the surface of the isolation plate 102. At the same time, the hot air or natural wind blown out of the air outlet 107 will blow the windward plate 212. Due to the inclined design of the windward plate 212, the windward plate 212 will drive the scraper 201 to slide toward the back. While sliding, the scraper 201 will scrape off the condensed water droplets on the isolation plate 102. As the scraper 201 moves, the slide plate 204 will be squeezed by the extension frame 104 and then slide toward the front. In the process of moving toward the front, the slide plate 204 will drive the rack 207 to move The rack 207 will drive the rotating rod 209 to rotate through the gear 208, and the rotating rod 209 will drive the windward plate 212 to rotate through the supporting block 210 and the rotating block 211, so that the windward plate 212 changes direction. At this time, the hot air blows the windward plate 212 to drive the scraper rod 201 to move forward. This design can reciprocate the scraper rod 201 to clean the water droplets on the surface of the isolation plate 102, so as to prevent the isolation plate 102 from being eroded and damaged by water droplets after long-term use, thereby reducing the service life of the device.

[0044] For example 2, please refer to Figure 7 - Fig.10 The present invention is a device for preventing hot air from flowing back of an evaporative condenser and a method for using the device. Based on Example 1, the bottom of the water collecting tank 303 is fixedly connected to the top of the fixed bracket 101, and the inner wall of the water collecting tank 303 is slidably connected to a sliding arc plate 304. There are two sliding arc plates 304, and the two sliding arc plates 304 are fixedly connected to a connecting plate 305 on the side away from each other. The front and back sides of the water collecting tank 303 are fixedly connected to a fixing plate 306, and the connecting plate 305 is fixedly connected to a sliding rod 307 on the side close to each other.

[0045] The outer surface of the sliding rod 307 is slidably connected to the inner wall of the fixed plate 306, and a spring 2 308 is sleeved on the outer surface of the sliding rod 307. The spring 2 308 is fixedly connected to the sliding rod 307 at one end away from the fixed plate 306, and the spring 2 308 is fixedly connected to the fixed plate 306 at one end close to the connecting plate 305. The front and back sides of the water collecting tank 303 are fixedly connected with a water outlet pipe 309. The water droplets scraped by the scraper rod 201 of the present invention will fall into the water collecting tank 303 along the hypotenuse of the scraper rod 201 for collection. The scraper rod 201 will also drive the scraper plate 302 to move through the limit ring 301 during the movement. The scraper plate 302 will collect the water droplets falling into the water collecting tank 303 during the movement. The scraper 302 gathers water, and when the scraper 302 contacts the sliding arc plate 304, as the scraper rod 201 continues to move, the scraper 302 will squeeze the sliding arc plate 304, and the sliding arc plate 304 will drive the sliding rod 307 to move through the connecting plate 305. The sliding rod 307 will compress the spring 2 308 to give the sliding arc plate 304 space to continue to move. The scraper 302 continues to move to squeeze the water in the water collection tank 303, and finally squeeze the water out through the outlet pipe 309. This design can continuously collect and discharge the scraped water droplets, prevent the continuously generated water droplets from falling directly on the condenser 106, causing water to accumulate on the top of the condenser 106 for a long time, thereby eroding and damaging the condenser 106.

[0046] The outer surface of the second rotating rod 406 is slidably connected to the inner wall of the first rotating rod 403, and the outer surface of the air compressor rod 404 is sleeved with a spring three 405, the left side of the spring three 405 is fixedly connected to the right side of the second rotating rod 406, and the right side of the spring three 405 is fixedly connected to the inner wall of the first rotating rod 403, the bottom of the first rotating rod 403 is rotatably connected to a slider 402, the outer surface of the slider 402 is slidably connected to a limiting groove 401, the bottom of the limiting groove 401 is fixedly connected to the top of the condenser 106, and the top of the first rotating rod 403 is fixedly connected to an air guide hose 407.

[0047] The air guide hose 407 is fixedly connected to the top of the support block 210 at one end away from the rotating rod 1 403, and an air guide cavity 408 is arranged inside the support block 210. A rotating plate 409 is rotatably connected to the inner wall of the support block 210, and a rotating shaft 410 is fixedly connected to the left side of the rotating plate 409. The outer surface of the rotating shaft 410 is rotatably connected to the inner wall of the support block 210, and the back of the rotating shaft 410 is fixedly connected to the front of the rotating block 211. An air outlet 411 is provided on the top of the support block 210. In order to make the surface of the isolation plate 102 facing the air outlet 107 always maintain a certain angle, the isolation plate 102 will drive the rotating rod 2 406 through the scraper rod 201 during the rotation process, and the rotating rod 2 406 will The air compression rod 404 is driven to move, and the air compression rod 404 will squeeze the air in the rotating rod 403 into the air guide hose 407. The air guide hose 407 will input the air into the air guide cavity 408. The air guide cavity 408 will drive the rotating shaft 410 to rotate by pushing the rotating plate 409. The rotating shaft 410 will drive the rotating block 211 to rotate. The rotating block 211 will drive the windward plate 212 to rotate, and then the inclination angle of the windward plate 212 can be adjusted. This design can continuously adjust the angle of the windward plate 212 during the rotation of the isolation plate 102, so that the windward plate 212 always maintains a certain angle, so that the windward plate 212 can always use the hot air discharged from the air outlet 107.

[0048] The manufacturing method of the manufacturing device comprises the following steps:

[0049] S1: When using the device, first install the device at a suitable position of the condenser 106, then start the air pump 105, adjust the angle of the isolation plate 102 until the hot air cannot flow back, and use the hot air discharged from the air outlet 107 to blow the windward plate 212 to drive the scraper 201 to scrape the water droplets on the surface of the isolation plate 102;

[0050] S2: The scraper 302 collects the water drops falling into the water collecting tank 303 during the movement, and then the scraper 302 squeezes the sliding arc plate 304, and finally squeezes the water out through the water outlet pipe 309;

[0051] S3: During the rotation process, the isolation plate 102 will drive the second rotating rod 406 through the scraper rod 201, squeeze the air in the rotating rod 1 403 into the air guide cavity 408, and rotate the rotating shaft 410. The rotating shaft 410 will drive the rotating block 211 to rotate, and finally drive the windward plate 212 to rotate, so that the inclination angle of the windward plate 212 can be adjusted.

[0052] A specific application of this embodiment is: when using the device, first install the device at a suitable position of the condenser 106, then start the air pump 105, adjust the angle of the isolation plate 102 until the hot air cannot flow back, at which time the hot air will be blown to a distance along the angle of the isolation plate 102. When there is natural wind from the outside, so that the hot air discharged from the air outlet 107 can be reabsorbed, the air pump 105 can be controlled to reduce the inclination angle between the isolation plate 102 and the condenser 106, so that the isolation plate 102 is more closely fitted to the air inlet opened at the top of the condenser 106, thereby ensuring that the hot air will not be reabsorbed. However, at this time, the isolation plate 102 will affect the air intake of the air inlet at the top of the condenser 106. When the natural wind no longer causes the hot air to flow back, the air pump 105 can be controlled to reduce the inclination angle between the isolation plate 102 and the condenser 106. The air pump 105 resets the isolation plate 102. When wind blows into the ventilation cavity 103 opened by the isolation plate 102, the isolation plate 102 can be cooled down. The width of the ventilation cavity 103 gradually decreases, which can speed up the flow of wind and make the cooling effect more obvious. The above design can prevent the backflow of hot air by changing the inclination angle of the isolation plate 102, and can cool the isolation plate 102, so that the temperature of the side of the isolation plate 102 facing the air inlet is always low, preventing heat from being conducted to the air inlet at the top of the condenser 106 through the isolation plate 102; when the hot air discharged from the air outlet 107 touches the isolation plate 102 with a lower temperature, a large number of water droplets will be generated on the surface of the isolation plate 102, and the hot air or The natural wind will blow the windward plate 212. Due to the inclined design of the windward plate 212, the windward plate 212 will drive the scraper rod 201 to slide to the back side through the support block 210 and the rotating rod 209. The scraper rod 201 will scrape off the condensed water droplets on the isolation plate 102 while sliding. The scraper rod 201 will also drive the fixed box 202 to move together. The fixed box 202 will drive the slide plate 204 to move. The back side of the slide plate 204 will contact the extension frame 104 during the movement. As the scraper rod 201 continues to move, the slide plate 204 will be squeezed by the extension frame 104 and then slide to the front. During the sliding process, the slide plate 204 will drive the block 205 to move. The block 205 will compress the spring 206 and retract into the slide plate 204. When the slider 204 passes the limit stopper 203, the block 205 is ejected by the spring 206 and stuck between the limit stopper 203 and the fixed box 202 to prevent the slider 204 from sliding further. The slider 204 will drive the rack 207 to move in the process of moving toward the front, and the rack 207 will drive the rotating rod 209 to rotate through the gear 208. The rotating rod 209 will drive the windward plate 212 to rotate through the supporting block 210 and the rotating block 211, so that the windward plate 212 changes direction. At this time, the hot air blows the windward plate 212 to drive the scraper 201 to move toward the front. This design can reciprocate the scraper 201 to clean the water droplets on the surface of the isolation plate 102, so as to prevent the isolation plate 102 from being damaged by water droplets after long-term use, thereby reducing the service life of the device.The water droplets scraped off by the scraper rod 201 will fall into the water collection tank 303 along the hypotenuse of the scraper rod 201 for collection. The scraper rod 201 will also drive the scraper plate 302 to move through the limit ring 301 during the movement. The scraper plate 302 will collect the water droplets falling into the water collection tank 303 during the movement. When the scraper plate 302 contacts the sliding arc plate 304, as the scraper rod 201 continues to move, the scraper plate 302 will squeeze the sliding arc plate 304, and the sliding arc plate 304 will drive the sliding rod 307 to move through the connecting plate 305. The sliding rod 307 will compress the spring 2 308 to give the sliding arc plate 304 space to continue to move. The scraper plate 302 continues to move to squeeze the water in the water collection tank 303, and finally squeeze the water out through the water outlet pipe 309. This design can continuously collect and discharge the scraped water droplets, prevent the continuously generated water droplets from falling directly on the condenser 106, and make the top of the condenser 106 long There is water accumulation over time, which will corrode and damage the condenser 106; in order to keep the surface of the isolation plate 102 facing the air outlet 107 at a certain angle, the isolation plate 102 will drive the second rotating rod 406 through the scraper rod 201 during the rotation process, and the second rotating rod 406 will drive the air pressure rod 404 to move, and the air pressure rod 404 will squeeze the air in the rotating rod 1 403 into the air guide hose 407, and the air guide hose 407 will input the air into the air guide cavity 408, and the air guide cavity 408 will drive the rotating shaft 410 to rotate by pushing the rotating plate 409, and the rotating shaft 410 will drive the rotating block 211 to rotate, and the rotating block 211 will drive the windward plate 212 to rotate, so as to adjust the inclination angle of the windward plate 212. This design can continuously adjust the angle of the windward plate 212 during the rotation of the isolation plate 102, so that the windward plate 212 always maintains a certain angle, so that the windward plate 212 can always use the hot air discharged from the air outlet 107. ;

[0053] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. 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. A hot air backflow prevention device for an evaporative condenser, comprising a backflow prevention component (1), the backflow prevention component (1) comprising a fixed bracket (101), an isolation plate (102) being rotatably connected to the inner wall of the fixed bracket (101), a ventilation cavity (103) being provided inside the isolation plate (102), characterized in that: Also includes: A dehumidification component (2), the dehumidification component (2) comprising a scraper rod (201) slidably connected to the outer surface of the isolation plate (102), a fixing box (202) being fixedly connected to the left side of the scraper rod (201), and a limit stopper (203) being fixedly connected to the inner wall of the fixing box (202); A drainage assembly (3), the drainage assembly (3) comprising a limiting ring (301) fixedly connected to the bottom of the scraper rod (201), the outer surface of the limiting ring (301) being rotatably connected to a scraper (302), and the outer surface of the scraper (302) being slidably connected to a water collecting trough (303); The angle-changing assembly (4) comprises a second rotating rod (406) rotatably connected to the right side of the scraper rod (201), a gas pressure rod (404) being fixedly connected to the right side of the second rotating rod (406), and a first rotating rod (403) being slidably connected to the outer surface of the gas pressure rod (404).

2. The device for preventing hot air backflow of an evaporative condenser according to claim 1, characterized in that: An extension frame (104) is fixedly connected to the left side of the isolation plate (102), and there are two extension frames (104). The right sides of the two extension frames (104) are both rotatably connected to an air pump (105). A condenser (106) is fixedly connected to the bottom of the fixed bracket (101), and the bottom of the air pump (105) is rotatably connected to the top of the condenser (106). An air outlet (107) and an air inlet are respectively provided on the top of the condenser (106).

3. The device for preventing hot air backflow of an evaporative condenser according to claim 2, characterized in that: The inner wall of the fixed box (202) is slidably connected to a slide plate (204), the inner wall of the slide plate (204) is slidably connected to a clamping block (205), the top of the clamping block (205) is fixedly connected to a spring 1 (206), the top of the spring 1 (206) is fixedly connected to the top of the inner wall of the slide plate (204), the top of the slide plate (204) is fixedly connected to a rack (207), the right side of the rack (207) is meshingly connected to a gear (208), the inner wall of the gear (208) is fixedly connected to a rotating rod (209), the bottom of the rotating rod (209) is rotatably connected to the inner wall of the scraper rod (201), the top of the rotating rod (209) is fixedly connected to a support block (210), the inner wall of the support block (210) is rotatably connected to a rotating block (211), and the left side of the rotating block (211) is fixedly connected to a windward plate (212).

4. The device for preventing hot air backflow of an evaporative condenser according to claim 3, characterized in that: The bottom of the water collecting trough (303) is fixedly connected to the top of the fixed bracket (101); the inner wall of the water collecting trough (303) is slidably connected to a sliding arc plate (304); there are two sliding arc plates (304); the two sliding arc plates (304) are fixedly connected to a connecting plate (305) on the sides away from each other; the front and back sides of the water collecting trough (303) are fixedly connected to a fixing plate (306); and the connecting plates (305) are fixedly connected to a sliding rod (307) on the sides close to each other.

5. The device for preventing hot air backflow of an evaporative condenser according to claim 4, characterized in that: The outer surface of the sliding rod (307) is slidably connected to the inner wall of the fixed plate (306); a second spring (308) is sleeved on the outer surface of the sliding rod (307); the second spring (308) is fixedly connected to the sliding rod (307) at one end away from the fixed plate (306); the second spring (308) is fixedly connected to the fixed plate (306) at one end close to the connecting plate (305); and a water outlet pipe (309) is fixedly connected to the front and back sides of the water collecting trough (303).

6. The device for preventing hot air backflow of an evaporative condenser according to claim 5, characterized in that: The outer surface of the second rotating rod (406) is slidably connected to the inner wall of the first rotating rod (403); the outer surface of the air compressor rod (404) is sleeved with a spring three (405); the left side of the spring three (405) is fixedly connected to the right side of the second rotating rod (406); the right side of the spring three (405) is fixedly connected to the inner wall of the first rotating rod (403); the bottom of the first rotating rod (403) is rotatably connected to a slider (402); the outer surface of the slider (402) is slidably connected to a limiting groove (401); the bottom of the limiting groove (401) is fixedly connected to the top of the condenser (106); and the top of the first rotating rod (403) is fixedly connected to an air guide hose (407).

7. The device for preventing hot air backflow of an evaporative condenser according to claim 6, characterized in that: The air guide hose (407) is fixedly connected to the top of the support block (210) at one end away from the rotating rod (403); an air guide cavity (408) is provided inside the support block (210); a rotating plate (409) is rotatably connected to the inner wall of the support block (210); a rotating shaft (410) is fixedly connected to the left side of the rotating plate (409); an outer surface of the rotating shaft (410) is rotatably connected to the inner wall of the support block (210); a back surface of the rotating shaft (410) is fixedly connected to the front surface of the rotating block (211); and an air outlet (411) is provided at the top of the support block (210).

8. The device for preventing hot air backflow of an evaporative condenser according to any one of claims 1 to 7, characterized in that: The method for using the evaporative condenser hot air backflow prevention device comprises the following steps: S1: When using the device, first install the device at a suitable position of the condenser (106), then start the air pump (105), adjust the angle of the isolation plate (102) until the hot air cannot flow back, and use the hot air discharged from the air outlet (107) to blow the windward plate (212) to drive the scraper (201) to scrape off the water droplets on the surface of the isolation plate (102); S2: The scraper (302) collects the water droplets that fall into the water collecting tank (303) during the movement, and then the scraper (302) squeezes the sliding arc plate (304), and finally squeezes the water out through the water outlet pipe (309); S3: During the rotation process, the isolation plate (102) drives the second rotating rod (406) through the scraper rod (201), squeezes the air in the first rotating rod (403) into the air guide cavity (408), and causes the rotating shaft (410) to rotate. The rotating shaft (410) drives the rotating block (211) to rotate, and finally drives the windward plate (212) to rotate, thereby adjusting the inclination angle of the windward plate (212).

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