Cavitation-preventing circulating water device with duplex structure

Abstract

The invention discloses a compound structure anti-cavitation circulating water device which comprises a shell, the inner wall of the shell is fixedly connected with a partition plate, the inner wall of the shell is fixedly connected with a rectangular rod, the end, away from the inner wall of the shell, of the rectangular rod is fixedly connected with a fan, the outer side of the shell communicates with a first water passing pipe, and the end, away from the shell, of the first water passing pipe communicates with a water pump. A spraying mechanism is fixedly connected to the position, below the rectangular rod, of the inner wall of the shell, a flow slowing mechanism is fixedly connected to the position, below the spraying mechanism, of the inner wall of the shell, and an air guiding mechanism is fixedly connected to the bottom of the flow slowing mechanism; the invention relates to the technical field of safety and energy conservation of circulating cooling water, in particular to an anti-cavitation circulating water device with a compound structure, and the anti-cavitation circulating water device with the compound structure is applied to an actual circulating cooling water system, so that the cavitation probability of a water pump can be greatly reduced, and the service life of the water pump is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of circulating cooling water safety and energy saving, and in particular to a compound structure anti-cavitation circulating water device. Background Art

[0002] The overall goal of this project is to solve the problem that the cavitation of water pumps in industrial circulating cooling water systems affects the normal, safe and stable production of industrial main process equipment. The circulating cooling water system, which directly provides cooling services for industrial main process equipment, has not received enough attention and is very backward. Therefore, the high energy consumption and water pump cavitation in industrial circulating cooling water systems have been plaguing industrial users, and they have paid a heavy economic and safety price for this. The purpose of this invention is to reduce water pump cavitation, safety and energy saving. At present, the methods for eliminating or reducing cavitation at home and abroad are mainly to change the inlet geometry of the impeller, use double-suction impellers, reduce the water flow velocity of the water pump, increase the impeller diameter, appropriately increase the width of the blade inlet edge, use anti-cavitation materials to manufacture impellers, reduce the number of poles of the water pump motor and use low speed, etc.

[0003] The above methods for eliminating or reducing cavitation at home and abroad cannot completely eliminate the cavitation of circulating water pumps (they can only reduce the cavitation of water pumps to a certain extent) and greatly increase the difficulty of mechanical design and processing. At the same time, due to the differences in working conditions of various circulating water devices, it is difficult to achieve standardized design and processing costs, which will also increase significantly. At present, it is difficult to completely solve the cavitation of circulating water pumps using traditional methods, and it is also impossible to ensure that large-scale industrial circulating water devices can achieve safe, reliable, energy-saving and efficient operation. Therefore, we propose a duplex structure anti-cavitation circulating water device. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a compound structure anti-cavitation circulating water device, comprising a shell, the inner wall of the shell is fixedly connected with a partition, the inner wall of the shell is fixedly connected with a rectangular rod, the end of the rectangular rod away from the inner wall of the shell is fixedly connected with a fan, the outer side of the shell is connected with a water pipe 1, the end of the water pipe 1 away from the shell is connected with a water pump, the water inlet of the water pump is connected with a water inlet pipe, the position below the rectangular rod on the inner wall of the shell is fixedly connected with a spraying mechanism, the position below the spraying mechanism on the inner wall of the shell is fixedly connected with a slow flow mechanism, and the bottom of the slow flow mechanism is fixedly connected with an air guide fan Structure, the bottom of the partition is connected with a water pipe 2, the end of the water pipe 2 away from the partition is connected with an inclined seat micro-resistance slow-closing check valve, the water outlet of the inclined seat micro-resistance slow-closing check valve is connected with a circulating water pump, the water outlet of the circulating water pump is connected with an electric valve, the water outlet of the electric valve is connected with a basket-type pipe filter, the water outlet of the basket-type pipe filter is connected with a water outlet pipe, an air inlet hole is opened on the outside of the shell, the water pipe 1 is connected with the spraying mechanism, one side of the air guide mechanism is fixedly connected to the inner wall of the shell, and the end of the water outlet pipe away from the basket-type pipe filter passes through the shell and is fixedly connected to the shell;

[0005] The spray mechanism includes a water-passing plate and a ring plate, one side of the water-passing plate is connected with a water spray pipe, a three-way pipe is sleeved on and fixedly connected to the water spray pipe, an annular pipe is fixedly connected to the inner wall of the three-way pipe, grooves are provided on the inner and outer sides of the annular pipe, an I-shaped groove is provided on the top of the rotating tube, a connecting rod is fixedly connected to the inner wall of the rotating tube, a circular hole is provided on the connecting rod, and a circular hole is provided on the surface of the connecting rod to reduce obstruction to the water flow, and a rotating rod is fixedly connected to the top of the connecting rod. The rotating rod is fixedly connected with a propeller, which converts the impact force of the water flow into a rotating force to drive the nozzle, so that the sprayed liquid covers a wider area, is dispersed into small droplets and is fully mixed with the air. The bottom of the rotating tube is fixedly connected with an hourglass-shaped tube. When water flows through the hourglass-shaped tube, the contraction section increases the speed and reduces the pressure, which is conducive to the subsequent high-speed spraying from the arc-shaped water outlet plate. The diffusion section maintains high speed and atomization, increases the contact range, and improves the heat exchange efficiency to cool the hot water. The bottom of the hourglass-shaped tube is fixedly connected with an arc-shaped water outlet plate, and the inner wall of the ring plate A round rod is fixedly connected, and a short cylinder is fixedly connected to the bottom of the round rod. The two sides of the short cylinder are rotatably connected with a wave plate through a rotating bolt. The surface temperature of the wave plate is lower than that of water vapor. When water vapor contacts it, it can be used as a cooling medium to cool the water vapor on its surface and condense into water droplets, thereby realizing the transformation of water vapor into liquid water, recovering part of the water, and reducing water loss. The wavy surface greatly increases the contact area with water vapor compared to the plane, so that more water vapor can condense on its surface. Due to the upward wind force, it will tilt. Under the joint action of gravity, the water droplets condensed on its surface can slide back to the bottom better, avoiding the accumulation of water droplets on the wave plate. The side of the water-passing plate away from the water spray pipe is connected to the end of the water-passing pipe away from the water pump. The outer side of the ring plate is fixedly connected to the inner wall of the shell, and the end of the water spray pipe away from the water-passing plate is fixedly connected to the inner wall of the shell. A plurality of three-way pipes are provided, and the plurality of three-way pipes are evenly distributed on the water spray pipe.

[0006] Furthermore, the flow-slowing mechanism comprises an annular plate, the inner wall of which is fixedly connected with a hollow plate. The hollow plate, by virtue of its coarse-aperture structure, utilizes the fluidity of the water flow itself and its collision and diversion effect to preliminarily disperse the inflowing hot water, so that the hot water can be more evenly distributed on the corrugated plate below, thereby avoiding the concentration of water flow in a local area. The bottom of the hollow plate is fixedly connected with a corrugated plate, and the wavy undulating structure of the corrugated plate will hinder the water flow, slow down the flow rate of the water flow, and allow the water flow to stay in the area longer, thereby extending the contact time between the water flow and the surrounding cold air, effectively promoting the initial exchange of heat, improving the heat exchange efficiency, and facilitating the initial cooling of the hot water. The bottom of the corrugated plate is fixedly connected with a fine hole Plate, the fine-pore plate further divides and disperses the water flow through numerous fine holes when the water flows through, greatly increasing the contact area and contact time between water and air, making the heat exchange more sufficient and further reducing the water temperature. An oblique baffle is fixedly connected to the bottom of the annular plate. The oblique baffle plays a blocking and guiding role in the downward flow of water, causing the water to slide obliquely, effectively preventing the water from directly contacting the air inlet, and ensuring the normal air intake of the air inlet. The outer side of the annular plate is fixedly connected to the inner wall of the shell, one side of the corrugated plate is fixedly connected to the inner wall of the annular plate, and one side of the fine-pore plate is fixedly connected to the inner wall of the annular plate. A plurality of corrugated plates are provided, and the plurality of corrugated plates are evenly distributed at the bottom of the hollow plate.

[0007] Furthermore, the air guide mechanism includes an annular inclined plate, one side of which is provided with ventilation holes. The ventilation holes provided on the annular inclined plate enable the cold air entering from the air inlet holes to smoothly enter the inclined air guide ring plate, providing a specific channel for the flow of cold air and ensuring the smooth intake of cold air. The ventilation holes are opened obliquely downward, effectively preventing water from entering the ventilation holes along the inclined surface of the annular inclined plate and flowing out. A wind shield is fixedly connected to the bottom of the annular inclined plate, and the wind shield is arranged under the oblique air guide ring plate. By blocking and guiding the flow direction of the cold air, the cold air is concentrated to move upward, effectively preventing the cold air from dispersing from below. The top of the wind shield is fixedly connected to the oblique air guide ring plate, and the oblique air guide ring plate guides the incoming cold air obliquely upward, so that the cold air The air can directly contact with the moisture at a specific angle and speed, which is sufficient and efficient, thereby enhancing the heat exchange effect. An arc-shaped hole is provided on one side of the oblique air guide ring plate. The arc-shaped hole on the oblique air guide ring plate ensures the smooth passage of cold air while slowing down the flow rate of the falling water when it drips onto the surface of the arc-shaped hole, which helps to extend the contact time between water and air, making the heat exchange more sufficient and further improving the cooling effect. The outer side of the annular oblique plate is fixedly connected to the inner wall of the shell, and one side of the wind shield is fixedly connected to the inner wall of the shell. A plurality of ventilation holes are provided, and the plurality of ventilation holes are evenly distributed on the outer side of the annular oblique plate. A plurality of oblique air guide ring plates are provided, and the plurality of oblique air guide ring plates are evenly distributed on the top of the wind shield.

[0008] The present invention has the beneficial effects:

[0009] 1. The present invention can greatly reduce the probability of water pump cavitation, increase the service life of the water pump, and ensure the safe operation of the system by applying the duplex structure anti-cavitation circulating water device to the actual circulating cooling water system. The duplex (step-down) structure design is adopted, and the circulating water field cooling tower water collection pool and the water pump suction pool are combined into one. While optimizing the pipeline process, a water pump suction riser and a water suction balance pipeline are set, and the water suction and pressure water pipeline process design is further optimized. The performance and application of the duplex structure anti-cavitation circulating water device are studied, and it is applied to the actual circulating cooling water system when conditions are met, so as to achieve the purpose of safe, reliable, energy-saving and efficient operation.

[0010] 2. The present invention provides a spraying mechanism, and the propeller converts the impact force of the water flow into a rotating force to drive the nozzle, so that the sprayed liquid covers a wider area, is dispersed into small droplets and is fully mixed with the air. A circular hole is opened on the surface of the connecting rod to reduce the obstruction to the water flow. The water flows through the hourglass-shaped tube, and the contraction section increases the speed and reduces the pressure, which is conducive to the subsequent high-speed spraying from the arc-shaped water outlet plate. The diffusion section maintains high speed and atomization, increases the contact range, and improves the heat exchange efficiency to cool the hot water. The surface temperature of the wave plate is lower than that of water vapor. When water vapor contacts it, it can be used as a cooling medium to cool the water vapor on its surface and condense into water droplets, thereby realizing the transformation of water vapor to liquid water, recovering part of the water, and reducing water loss. Compared with the plane, the wavy surface greatly increases the contact area with water vapor, so that more water vapor can condense on its surface. Due to the upward wind force, it will tilt. Under the joint action of gravity, the water droplets condensed on its surface can slide back to the bottom better, avoiding the accumulation of water droplets on the wave plate.

[0011] 3. The present invention sets a slow flow mechanism. The hollow plate, with its coarse aperture structure, utilizes the fluidity of the water flow itself and its collision and diversion effect to initially disperse the inflowing hot water, so that the hot water can be more evenly distributed on the corrugated plate below, avoiding the concentration of water flow in a local area. The wavy undulating structure of the corrugated plate will hinder the water flow, slow down the flow rate of the water flow, and allow the water flow to stay in the area longer, thereby extending the contact time between the water flow and the surrounding cold air, effectively promoting the initial exchange of heat, improving the heat exchange efficiency, and facilitating the initial cooling of hot water. The fine-pored plate further divides and disperses the water flow through numerous fine holes when the water flows through, greatly increasing the contact area and contact time between water and air, making the heat exchange more sufficient and further reducing the water temperature. The oblique baffle plays a blocking and guiding role in the downward flow of water, causing the water to slide obliquely, effectively avoiding direct contact between the water and the air inlet, and ensuring normal air intake through the air inlet.

[0012] 4. The present invention sets an air guiding mechanism, and the ventilation holes opened on the annular inclined plate enable the cold air entering from the air inlet to smoothly enter the inclined air guiding ring plate, thereby providing a specific channel for the flow of cold air and ensuring the smooth intake of cold air. The ventilation holes are opened obliquely downward, which effectively prevents water from entering the ventilation holes along the inclined surface of the annular inclined plate and flowing out. The inclined air guiding ring plate guides the incoming cold air obliquely upward, so that the cold air can directly contact with moisture at a specific angle and speed fully and efficiently, thereby enhancing the heat exchange effect. The arc-shaped holes opened thereon can ensure the smooth passage of cold air while slowing down the flow rate of the falling water flow when it drips onto the surface of the arc-shaped holes, which helps to prolong the contact time between water and air, make the heat exchange more complete, and further enhance the cooling effect. The wind shield is set below the oblique air guiding ring plate, which blocks and guides the flow direction of the cold air to make it move upward in a concentrated manner, thereby effectively preventing the cold air from dispersing from below. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the compound structure anti-cavitation circulating water device of the present invention;

[0014] Figure 2 It is a schematic cross-sectional structure diagram of a duplex structure anti-cavitation circulating water device of the present invention;

[0015] Figure 3 It is a schematic diagram of the structure of the spraying mechanism of the present invention;

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the spraying mechanism of the present invention;

[0017] Figure 5 It is an enlarged structural schematic diagram of the section A of the spraying mechanism of the present invention;

[0018] Figure 6 It is a schematic structural diagram of a cross section of a slow flow mechanism of the present invention;

[0019] Figure 7 It is a schematic diagram of the second cross-section structure of the slow-flow mechanism of the present invention;

[0020] Figure 8 It is a schematic diagram of the structure of the air guide mechanism of the present invention;

[0021] Fig. 9 It is a schematic diagram of the cross-sectional structure of the air guide mechanism of the present invention;

[0022] In the figure: 1, shell; 2, partition; 3, rectangular rod; 4, fan; 5, water pipe 1; 6, water pump; 7, water inlet pipe; 8, spray mechanism; 9, slow flow mechanism; 10, air guide mechanism; 11, water pipe 2; 12, inclined seat micro-resistance slow closing check valve; 13, circulating water pump; 14, electric valve; 15, basket pipe filter; 16, water outlet pipe; 17, air inlet hole; 81, water plate; 82, water spray pipe; 83, three-way pipe; 84, annular pipe; 85, groove; 86, rotation Tube; 87, I-shaped groove; 88, connecting rod; 89, round hole; 810, rotating rod; 811, propeller; 812, hourglass-shaped tube; 813, arc-shaped water outlet plate; 814, ring plate; 815, round rod; 816, short cylinder; 817, wave plate; 91, ring plate; 92, hollow plate; 93, corrugated plate; 94, fine hole plate; 95, oblique baffle; 101, annular oblique plate; 102, ventilation hole; 103, wind shield; 104, oblique air guide ring plate; 105, arc hole. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0024] For the first embodiment, please refer to Figure 1-Figure 5The present invention is a compound structure anti-cavitation circulating water device, comprising a shell 1, a partition 2 is fixedly connected to the inner wall of the shell 1, a rectangular rod 3 is fixedly connected to the inner wall of the shell 1, a fan 4 is fixedly connected to the end of the rectangular rod 3 away from the inner wall of the shell 1, a water pipe 5 is connected to the outer side of the shell 1, a water pump 6 is connected to the end of the water pipe 5 away from the shell 1, a water inlet of the water pump 6 is connected to a water inlet pipe 7, a spraying mechanism 8 is fixedly connected to the position below the rectangular rod 3 on the inner wall of the shell 1, a slow flow mechanism 9 is fixedly connected to the position below the spraying mechanism 8 on the inner wall of the shell 1, a wind guide mechanism 10 is fixedly connected to the bottom of the slow flow mechanism 9, and the bottom of the partition 2 is connected to A water pipe 11 is provided, and one end of the water pipe 11 away from the partition 2 is connected with a bevel seat micro-resistance slow-closing check valve 12, and the water outlet of the bevel seat micro-resistance slow-closing check valve 12 is connected with a circulating water pump 13, and the water outlet of the circulating water pump 13 is connected with an electric valve 14, and the water outlet of the electric valve 14 is connected with a basket-type pipe filter 15, and the water outlet of the basket-type pipe filter 15 is connected with a water outlet pipe 16, and an air inlet hole 17 is provided on the outside of the shell 1, and the water pipe 15 is connected with the spraying mechanism 8, and one side of the air guide mechanism 10 is fixedly connected with the inner wall of the shell 1, and the end of the water outlet pipe 16 away from the basket-type pipe filter 15 passes through the shell 1 and is fixedly connected with the shell 1;

[0025] The spraying mechanism 8 includes a water-passing plate 81 and an annular plate 814. A water spraying pipe 82 is connected to one side of the water-passing plate 81. A three-way pipe 83 is sleeved and fixedly connected to the water spraying pipe 82. An annular pipe 84 is fixedly connected to the inner wall of the three-way pipe 83. Grooves 85 are provided on the inner and outer sides of the annular pipe 84. An I-shaped groove 87 is provided on the top of the rotating pipe 86. A connecting rod 88 is fixedly connected to the inner wall of the rotating pipe 86. A circular hole 89 is provided on the connecting rod 88. A rotating rod 810 is fixedly connected to the top of the connecting rod 88. A propeller 811 is fixedly connected to the rotating rod 810. An hourglass-shaped pipe 812 is fixedly connected to the bottom of the rotating pipe 86. An arc-shaped water outlet plate 813 is fixedly connected to the bottom of the hourglass-shaped pipe 812. A round rod 815 is fixedly connected to the inner wall of the annular plate 814. The bottom of the round rod 815 is fixedly connected with a short cylinder 816, and the two sides of the short cylinder 816 are rotatably connected with wave plates 817 through rotating bolts. The side of the water-passing plate 81 away from the water spraying pipe 82 is connected to the end of the water-passing pipe 5 away from the water pump 6. The outer side of the ring plate 814 is fixedly connected to the inner wall of the shell 1, and the end of the water spraying pipe 82 away from the water-passing plate 81 is fixedly connected to the inner wall of the shell 1. There are multiple three-way pipes 83, and the multiple three-way pipes 83 are evenly distributed on the water spraying pipe 82. When in use, hot water enters from the water inlet pipe 7, passes through the water pump 6 with a certain pressure through the water-passing pipe 5 and enters the spraying mechanism 8. The spraying mechanism 8 rotates and evenly sprays the hot water onto the surface of the slow flow mechanism 9 to form a water film or water droplets to increase the contact area with the air and slowly pass through the slow flow machine Structure 9, increase the contact time with air, air enters from the air inlet 17, contacts with hot water through the air guide mechanism 10, and performs heat exchange. Due to the direct heat transfer between air and water, heat will be transferred from water to air, and due to the pressure difference between the water vapor surface and the air, evaporation will occur under the action of pressure, taking away the latent heat of evaporation, thereby taking away the heat in the water, achieving the purpose of cooling. After heat exchange, hot air is extracted from the top, passes through the spraying mechanism 8, and is cooled into a water column attached to the surface of the spraying mechanism 8. After gathering into water droplets, it falls back to the bottom to reduce water loss, and the remaining hot air is discharged into the atmosphere. The cooled water drops onto the partition 2, and then flows into the inclined seat micro-resistance slow-closing check valve 12 through the water pipe 11. The inclined seat micro-resistance slow-closing check valve 12 can effectively prevent The water flow is stopped from flowing back and enters the blue pipe filter 15 for filtration through the circulating water pump 13 and the electric valve 14. The electric valve 14 can control the on-off and flow rate of the water flow according to the instructions of the control system. The blue pipe filter 15 performs automatic backwashing operation regularly and monitors the blockage of the filter through the pressure difference sensor. When the pressure difference reaches the set value, the backwashing program is automatically started to discharge the filtered impurities out of the system. Finally, the cooled water flows out from the outlet pipe 16, and the hot water flows from the water pipe 15 into the water plate 81 and then into the water spray pipe 82. The water flow impacts the propeller 811 inside the water spray pipe 82, and the propeller 811 starts to rotate and drives the rotating rod 810 to rotate synchronously through the fixed connection. The rotating rod 810 is connected to the rotating pipe 86 by the connecting rod 88.As a result, the rotating tube 86 also rotates, and a circular hole 89 is provided on the surface of the connecting rod 88 to reduce the obstruction to the water flow. Then, the water flows through the annular tube 84 into the hourglass-shaped tube 812. In the contraction section of the hourglass-shaped tube 812, the speed of the water flow increases and the pressure decreases. When passing through the diffusion section, the high-speed water flow can maintain a high speed and spray out from the arc-shaped water outlet plate 813 to the surrounding areas, which greatly increases the contact area and contact opportunity between the hot water and the air, and strengthens the heat exchange process. The water vapor generated after the hot water contacts and cools the air is drawn upward and encounters the wave plate 817 during the rising process. Since the temperature of the water vapor is higher than the surface temperature of the wave plate 817, the water vapor will cool on the surface of the wave plate 817 and condense into water droplets. Due to the upward wind force, the wave plate 817 will tilt. Under the action of gravity, the water droplets can slide back to the bottom better. At the same time, the wavy surface of the wave plate 817 greatly increases the contact area with the water vapor compared to the plane, so that the condensation efficiency of the water vapor is improved.

[0026] For the second embodiment, please refer to Figure 1-Figure 9 The present invention provides a compound structure anti-cavitation circulating water device: the slow flow mechanism 9 includes an annular plate 91, the inner wall of the annular plate 91 is fixedly connected with a hollow plate 92, the bottom of the hollow plate 92 is fixedly connected with a corrugated plate 93, the bottom of the corrugated plate 93 is fixedly connected with a fine hole plate 94, the bottom of the annular plate 91 is fixedly connected with an oblique baffle 95, the outer side of the annular plate 91 is fixedly connected to the inner wall of the shell 1, one side of the corrugated plate 93 is fixedly connected to the inner wall of the annular plate 91, one side of the fine hole plate 94 is fixedly connected to the inner wall of the annular plate 91, a plurality of corrugated plates 93 are provided, and the plurality of corrugated plates 93 are evenly distributed at the bottom of the hollow plate 92.

[0027] The wind guide mechanism 10 includes an annular inclined plate 101, one side of the annular inclined plate 101 is provided with a ventilation hole 102, the bottom of the annular inclined plate 101 is fixedly connected with a wind shield 103, the top of the wind shield 103 is fixedly connected with an oblique wind guide ring plate 104, one side of the oblique wind guide ring plate 104 is provided with an arc hole 105, the outer side of the annular inclined plate 101 is fixedly connected to the inner wall of the shell 1, one side of the wind shield 103 is fixedly connected to the inner wall of the shell 1, a plurality of ventilation holes 102 are provided, and the plurality of ventilation holes 102 are evenly distributed on the outer side of the annular inclined plate 101, a plurality of oblique wind guide ring plates 104 are provided, and the plurality of oblique wind guide ring plates 104 are evenly distributed on the top of the wind shield 103. When in use, water sprays and falls on the hollow plate 92. Due to the hollow plate 9 2 is designed to have a coarse pore size. When the water flows in contact with the hollow plate 92, the hot water will be initially dispersed according to the fluidity of the water flow and the collision and diversion with the hollow plate 92, so that the water can be more evenly distributed on the corrugated plate 93 below it. Then, the water flows downward along the wave shape of the corrugated plate 93. In this process, the undulating structure of the corrugated plate 93 will hinder and guide the water flow, slow down the flow rate of the water flow, and prolong the residence time of the water flow in this area, thereby increasing the contact time between the water flow and the surrounding cold air, and promoting the initial exchange of heat. After that, the water flow that has been initially cooled continues to flow downward to the fine-pore plate 94. The numerous fine holes on the fine-pore plate 94 further divide and disperse the water flow when it passes through, greatly The contact area and contact time between water and air are increased, so that the heat exchange is more sufficient and the water temperature is further reduced. In the whole four sides of the device, the water will be blocked and guided by the inclined baffle 95 during the downward flow. The inclined baffle 95 makes the water slide obliquely to avoid the water from directly contacting the air inlet 17. The cold air enters from the air inlet 17 and enters the inclined air guide ring plate 104 through the ventilation holes 102 opened on the annular inclined plate 101 to guide the cold air intake obliquely upward and directly contact the water. The ventilation holes on the surface of the annular inclined plate 101 are opened obliquely downward to prevent the water from entering the ventilation holes 102 along the inclined surface of the annular inclined plate 101 and flowing out. The oblique air guide ring plate 104 has arc holes 105, which can allow the wind to pass through while the water drips onto the surface of the arc holes 105 The wind shield 103 prevents the cold air from dispersing from below, and the cold air enters from the air inlet 17, and enters the oblique air guide ring plate 104 through the ventilation hole 102 opened on the annular inclined plate 101, and guides the cold air intake obliquely upward, so that the cold air can directly contact with the moisture at a specific angle and speed, and enhance the heat exchange effect. The ventilation holes on the surface of the annular inclined plate 101 are opened obliquely downward, which effectively prevents the water from entering the ventilation hole 102 and flowing out along the inclined surface of the annular inclined plate 101. The oblique air guide ring plate 104 is provided with an arc hole 105, so that the cold air can pass smoothly without generating obvious resistance, and maintain a stable airflow state. When the falling water drips onto the surface of the arc hole 105, its flow rate will slow down, which helps to prolong the contact time between water and air.To make the heat exchange more sufficient and further improve the cooling effect, the wind shield 103 is set below the oblique wind guide ring plate 104 to prevent the cold air from dispersing from below. By blocking and guiding the flow of cold air, it is concentrated to move upward, avoiding the problem of uneven heat exchange or reduced efficiency caused by the dispersion of cold air.

[0028] When the present invention is in operation, hot water enters from the water inlet pipe 7, passes through the water pipe 5 at a certain pressure through the water pump 6 and enters the spraying mechanism 8. The spraying mechanism 8 rotates and evenly sprays the hot water onto the surface of the slow flow mechanism 9 to form a water film or water droplets to increase the contact area with the air, and slowly passes through the slow flow mechanism 9 to increase the contact time with the air. The air enters from the air inlet hole 17 and contacts with the hot water through the air guide mechanism 10 to perform heat exchange. Due to the direct heat transfer between the air and the water, the heat will be transferred from the water to the air, and due to the pressure difference between the water vapor surface and the air, evaporation will occur under the action of pressure, taking away the latent heat of evaporation, thereby taking away the heat in the water, achieving the purpose of cooling. After the heat exchange, the hot air is extracted from the top, passes through the spraying mechanism 8, and the cold air is cooled. The water column is attached to the surface of the spray mechanism 8, and then falls back to the bottom after gathering into water drops, reducing water loss. The remaining hot air is discharged into the atmosphere. The cooled water drops onto the partition 2, and then flows into the inclined seat micro-resistance slow-closing check valve 12 through the water pipe 11. The inclined seat micro-resistance slow-closing check valve 12 can effectively prevent water from flowing back. It enters the blue pipe filter 15 for filtration through the circulating water pump 13 and the electric valve 14. The electric valve 14 can control the on-off and flow rate of the water flow according to the instructions of the control system. The blue pipe filter 15 performs automatic backwashing operation regularly, and monitors the blockage of the filter through the pressure difference sensor. When the pressure difference reaches the set value, the backwashing program is automatically started to discharge the filtered impurities out of the system. Finally, the cooled water flows out from the outlet pipe 16, and the hot water flows out from After the water pipe 15 flows into the water passing plate 81, it enters the water spray pipe 82, and the water flow impacts the propeller 811 inside the water spray pipe 82. The propeller 811 starts to rotate and drives the rotating rod 810 to rotate synchronously through a fixed connection. The rotating rod 810 is connected to the rotating tube 86 by means of a connecting rod 88, so that the rotating tube 86 also rotates. A circular hole 89 is provided on the surface of the connecting rod 88 to reduce the obstruction to the water flow. Then, the water flows through the annular tube 84 into the hourglass-shaped tube 812. In the contraction section of the hourglass-shaped tube 812, the speed of the water flow is accelerated and the pressure is reduced. When passing through the diffusion section, the high-speed water flow can maintain a high speed and be dispersed and sprayed from the arc-shaped water outlet plate 813 to the surroundings, which greatly increases the contact area and contact opportunity between hot water and air, strengthens the heat exchange process, and the hot water and air are heated. The water vapor generated after the air contact cooling is drawn out upwards, and encounters the wave plate 817 during the rising process. Since the temperature of the water vapor is higher than the surface temperature of the wave plate 817, the water vapor will cool on the surface of the wave plate 817 and condense into water droplets. Due to the upward wind force, the wave plate 817 will tilt. Under the action of gravity, the water droplets can slide back down better. At the same time, the wavy surface of the wave plate 817 greatly increases the contact area with the water vapor compared to the flat surface, so that the condensation efficiency of the water vapor is improved. The water flow is sprayed and falls on the hollow plate 92. Since the hollow plate 92 is designed to have a coarse aperture structure, when the water flow contacts the hollow plate 92, it will initially disperse the hot water based on the water flow's own fluidity and the collision and diversion with the hollow plate 92.Thereby, the water can be distributed more evenly on the corrugated plate 93 below it, and then the water flows downward along the wave shape of the corrugated plate 93. In this process, the undulating structure of the corrugated plate 93 will hinder and guide the water flow, slow down the flow rate of the water flow, and prolong the residence time of the water flow in this area, thereby increasing the contact time between the water flow and the surrounding cold air, and promoting the initial exchange of heat. After that, the water flow that has been initially cooled continues to flow downward to the fine hole plate 94. The numerous fine holes on the fine hole plate 94 further divide and disperse the water flow when passing through, greatly increasing the contact surface between water and air. The accumulation and contact time make the heat exchange more complete and the water temperature further reduced. In the whole periphery of the device, the water will be blocked and guided by the inclined baffle 95 during the downward flow. The inclined baffle 95 makes the water slide obliquely to prevent the water from directly contacting the air inlet 17. The cold air enters from the air inlet 17 and enters the oblique air guide ring plate 104 through the ventilation holes 102 opened on the annular inclined plate 101 to guide the cold air intake obliquely upward and directly contact the water. The ventilation holes on the surface of the annular inclined plate 101 are opened obliquely downward to prevent the water from flowing along the inclined surface of the annular inclined plate 101 into the ventilation holes 102. The oblique air guide ring plate 104 has an arc-shaped hole 105, which can allow wind to pass through while water drips onto the surface of the arc-shaped hole 105 to slow down the flow rate. The wind shield 103 prevents cold air from dispersing from below. Cold air enters from the air inlet 17 and enters the oblique air guide ring plate 104 through the ventilation hole 102 opened on the annular inclined plate 101. The cold air intake is guided obliquely upward, so that the cold air can directly contact the water at a specific angle and speed, which is sufficient and efficient, thereby enhancing the heat exchange effect. The ventilation holes on the surface of the annular inclined plate 101 are opened obliquely downward, which effectively prevents water from entering the ventilation holes along the inclined surface of the annular inclined plate 101 102 and flows out, and an arc hole 105 is provided on the oblique air guide ring plate 104 to allow the cold air to pass smoothly without generating obvious resistance and maintain a stable airflow state. When the falling water drops onto the surface of the arc hole 105, its flow rate will slow down, which helps to prolong the contact time between water and air, making the heat exchange more sufficient and further improving the cooling effect. The wind shield 103 is arranged below the oblique air guide ring plate 104 to prevent the cold air from dispersing from below. By blocking and guiding the flow direction of the cold air, it is concentrated to move upward, avoiding the problem of uneven heat exchange or reduced efficiency caused by the dispersion of the cold air.

[0029] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A composite structure anti-cavitation circulating water device, comprising a housing (1), characterized in that: The inner wall of the shell (1) is fixedly connected to a partition (2), the inner wall of the shell (1) is fixedly connected to a rectangular rod (3), one end of the rectangular rod (3) away from the inner wall of the shell (1) is fixedly connected to a fan (4), the outer side of the shell (1) is connected to a water pipe (5), the end of the water pipe (5) away from the shell (1) is connected to a water pump (6), the water inlet of the water pump (6) is connected to a water inlet pipe (7), the inner wall of the shell (1) is fixedly connected to a spraying mechanism (8) at a position below the rectangular rod (3), the inner wall of the shell (1) is fixedly connected to a slow flow mechanism (9) at a position below the spraying mechanism (8), the bottom of the slow flow mechanism (9) is fixedly connected to an air guide mechanism (10), the bottom of the partition (2) is connected to a water pipe (11), the One end of the water pipe 2 (11) away from the partition (2) is connected to a slanted seat micro-resistance slow-closing check valve (12); the water outlet of the slanted seat micro-resistance slow-closing check valve (12) is connected to a circulating water pump (13); the water outlet of the circulating water pump (13) is connected to an electric valve (14); the water outlet of the electric valve (14) is connected to a basket-type pipe filter (15); the water outlet of the basket-type pipe filter (15) is connected to a water outlet pipe (16); an air inlet hole (17) is provided on the outside of the shell (1); the water pipe 1 (5) is connected to a spraying mechanism (8); one side of the air guide mechanism (10) is fixedly connected to the inner wall of the shell (1); the end of the water outlet pipe (16) away from the basket-type pipe filter (15) passes through the shell (1) and is fixedly connected to the shell (1); The spraying mechanism (8) comprises a water-passing plate (81), a rotating tube (86) and an annular plate (814); one side of the water-passing plate (81) is connected to a water spraying tube (82); a three-way tube (83) is sleeved on and fixedly connected to the water spraying tube (82); an annular tube (84) is fixedly connected to the inner wall of the three-way tube (83); grooves (85) are provided on the inner and outer sides of the annular tube (84); an I-shaped groove (87) is provided on the top of the rotating tube (86); a connecting rod (88) is fixedly connected to the inner wall of the rotating tube (86); and a connecting rod (88) is provided on the connecting rod (88). A circular hole (89) is provided, the top of the connecting rod (88) is fixedly connected to a rotating rod (810), the rotating rod (810) is fixedly connected to a propeller (811), the bottom of the rotating tube (86) is fixedly connected to an hourglass-shaped tube (812), the bottom of the hourglass-shaped tube (812) is fixedly connected to an arc-shaped water outlet plate (813), the inner wall of the ring plate (814) is fixedly connected to a round rod (815), the bottom of the round rod (815) is fixedly connected to a short cylinder (816), and both sides of the short cylinder (816) are rotatably connected to wave plates (817) via rotating bolts.

2. A compound structure anti-cavitation circulating water device according to claim 1, characterized in that: The side of the water-passing plate (81) away from the water spray pipe (82) is connected to the end of the water-passing pipe (5) away from the water pump (6), and the outer side of the ring plate (814) is fixedly connected to the inner wall of the shell (1).

3. The compound structure anti-cavitation circulating water device according to claim 1, characterized in that: One end of the water spray pipe (82) away from the water passing plate (81) is fixedly connected to the inner wall of the shell (1), and a plurality of three-way pipes (83) are provided, and the plurality of three-way pipes (83) are evenly distributed on the water spray pipe (82).

4. A compound structure anti-cavitation circulating water device according to claim 1, characterized in that: The slow flow mechanism (9) comprises an annular plate (91), the inner wall of the annular plate (91) is fixedly connected to a hollow plate (92), the bottom of the hollow plate (92) is fixedly connected to a corrugated plate (93), the bottom of the corrugated plate (93) is fixedly connected to a fine hole plate (94), and the bottom of the annular plate (91) is fixedly connected to an oblique baffle (95).

5. A compound structure anti-cavitation circulating water device according to claim 4, characterized in that: The outer side of the annular plate (91) is fixedly connected to the inner wall of the housing (1), and one side of the corrugated plate (93) is fixedly connected to the inner wall of the annular plate (91).

6. A compound structure anti-cavitation circulating water device according to claim 4, characterized in that: One side of the fine hole plate (94) is fixedly connected to the inner wall of the annular plate (91), and a plurality of the corrugated plates (93) are provided, and the plurality of the corrugated plates (93) are evenly distributed at the bottom of the hollow plate (92).

7. The compound structure anti-cavitation circulating water device according to claim 1, characterized in that: The air guide mechanism (10) comprises an annular inclined plate (101), a ventilation hole (102) is provided on one side of the annular inclined plate (101), a wind shield (103) is fixedly connected to the bottom of the annular inclined plate (101), an oblique air guide ring plate (104) is fixedly connected to the top of the wind shield (103), and an arc-shaped hole (105) is provided on one side of the oblique air guide ring plate (104).

8. The compound structure anti-cavitation circulating water device according to claim 7, characterized in that: The outer side of the annular inclined plate (101) is fixedly connected to the inner wall of the shell (1), and one side of the wind shield plate (103) is fixedly connected to the inner wall of the shell (1).

9. The compound structure anti-cavitation circulating water device according to claim 7, characterized in that: A plurality of ventilation holes (102) are provided, and the plurality of ventilation holes (102) are evenly distributed on the outside of the annular inclined plate (101); a plurality of inclined air guide ring plates (104) are provided, and the plurality of inclined air guide ring plates (104) are evenly distributed on the top of the wind shield (103).

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