Water-saving counter-flow cooling tower
Through the design of rain collecting boxes, shields and water absorption sponges, the problem of heavy tap water consumption of cooling towers is solved, and the efficient utilization of rainwater and the efficient cooling effect of cooling towers is achieved.
Patent Information
- Application Number
- CN202422207402.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The cooling tower consumes a lot of tap water resources during use, and the existing technology is difficult to effectively save water resources.
A water-saving countercurrent cooling tower is designed, using a rain collector and filter to collect rainwater, and the rainwater is transported to the main water pipe through a water pump and distributed to the filler. Combined with a shielding plate to block the fan on rainy days to reduce the impact of rainwater, block the sunlight on sunny days to prevent evaporation, and the water absorption sponge recovers the evaporated hot water, and optimizes the rotation of the water separation pipe to increase the contact area of the hot water.
It realizes efficient use of rainwater, reduces tap water consumption, improves the utilization rate of natural water, and enhances the cooling efficiency of the cooling tower.
Smart Images
Figure CN223165969U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of cooling towers, and in particular to a water-saving countercurrent cooling tower. Background Art
[0002] The counterflow cooling tower is a water-cooling equipment widely used in the power, chemical, metallurgy and pharmaceutical industries. It mainly includes a tower body, a water spray pipe arranged in the tower body, a filler arranged below the water spray pipe and a fan installed on the top of the tower body. The fan will draw air from the air inlet at the bottom of the tower body, so that the air flows from bottom to top. The water spray pipe will spray hot water, and the hot water will fall into the filler from top to bottom, thereby using the filler to increase the contact area between the hot water and the air, so that the hot water mainly evaporates and exchanges heat with the air in the filler, so as to dissipate the heat carried by the hot water into the atmosphere, so that the cooled hot water can be recycled.
[0003] However, a large amount of hot water will be evaporated during the use of the cooling tower. In order to ensure the normal operation of the cooling tower, a large amount of tap water needs to be added into the cooling tower, which increases the consumption of tap water resources and is obviously insufficient. Utility Model Content
[0004] In order to save tap water resources, the present application provides a water-saving countercurrent cooling tower.
[0005] The present application provides a water-saving counterflow cooling tower adopting the following technical solution:
[0006] A water-saving countercurrent cooling tower comprises a tower body, a fan and filler, a spray assembly is provided above the filler, the spray assembly comprises a main water pipe arranged inside the tower body, a plurality of branch water pipes are provided on the main water pipe, and the water outlet direction of the branch water pipes is set toward the filler, a rain collecting box is provided on the outer wall of the tower body, a filter is provided in the rain collecting box, a water supply pipe connected to the main water pipe is provided on the outer wall of the rain collecting box, and a water pump is provided on the water supply pipe.
[0007] By adopting the above technical solution, rainwater falls onto the filter net, which filters out impurities in the rainwater, and the filtered water is stored in the rain collection box. When the cooling tower needs to be replenished with water, the operator turns on the water pump, and the rainwater inside the rain collection box flows into the main water pipe through the water supply pipe. The rainwater in the main water pipe flows into the filler through the water distribution pipe. The entire water replenishment process no longer relies entirely on tap water resources. The collection and utilization of rainwater is achieved through the rain collection box and the filter net, which improves the utilization rate of natural water and saves tap water resources.
[0008] Optionally, shielding plates are provided at both opposite ends of the tower body. The two shielding plates are rotatably connected at the air outlet. When the two shielding plates are in contact with each other, the shielding plates are obliquely covered above the air outlet. A plurality of rain collection grooves are formed on the surface of the shielding plates, and a rotating assembly for driving the shielding plates to rotate is provided on the tower body.
[0009] By adopting the above technical solution, when it rains, the shielding plates are rotated so that the two shielding plates are inclined and in contact with each other. At this time, the air outlet is blocked, and the influence of rainwater on the fan is reduced. At the same time, the rainwater falling on the shielding plates will flow along the rain collection grooves into the rain collection tank, thereby increasing the available water storage volume in the rain collection tank and reducing the consumption of tap water resources. When it is sunny, the shielding plates are rotated to shield the opening of the rain collection tank, preventing the rainwater stored in the rain collection tank from partially evaporating under direct sunlight, and further increasing the water storage volume in the rain collection tank.
[0010] Optionally, the rotating assembly includes a rotating shaft rotatably provided on the tower body. Opposite ends of the rotating shaft are coaxially and fixedly connected with worms with opposite helix directions. Worms are respectively engaged with worm wheels, and the worm wheels are fixedly connected to the rotating shafts of the shielding plates. A first motor for driving one of the worms to rotate is provided on the tower body.
[0011] By adopting the above technical solution, after the operator starts the first motor, the first motor drives the two worms with opposite helix directions to rotate. The worms drive the worm wheels to rotate, and the rotation of the worm wheels causes the two shielding plates to rotate in opposite or similar directions, thereby realizing the switching of the shielding object of the shielding plates.
[0012] Optionally, a water filtering plate is provided above the spraying assembly. A water absorbing sponge is provided on the water filtering plate, and a water squeezing assembly is provided inside the tower body.
[0013] By adopting the above technical solution, the water absorbing sponge can absorb some of the evaporated hot water. Under the action of the water squeezing assembly, the hot water absorbed by the water absorbing sponge is squeezed onto the packing, thereby realizing the recycling of hot water, reducing the required makeup water volume, and thus reducing the consumption of tap water resources.
[0014] Optionally, the water squeezing assembly includes a pressing roller slidably provided on the water absorbing sponge. The bottom surface of the pressing roller squeezes the water absorbing sponge. A screw rod is rotatably connected inside the tower body. One end of the pressing roller is threadedly connected to the screw rod. A second motor for driving the screw rod to rotate is provided on the outer side wall of the tower body.
[0015] By adopting the above technical solution, the operator starts the second motor. The second motor drives the screw rod to rotate. The pressing roller threadedly connected to the screw rod moves along the length direction of the water absorbing sponge, and the hot water absorbed by the water absorbing sponge is squeezed out during the movement. The hot water falls into the packing under the action of gravity and exchanges heat with the air.
[0016] Optionally, the spraying assembly further includes a plurality of nozzles provided on the water distribution pipes, and the water outlet directions of the nozzles are arranged towards the packing.
[0017] By adopting the above technical solution, the arrangement of a plurality of nozzles enables the hot water to be more evenly dispersed on the surface of the packing, increasing the contact area between the hot water and the air, thereby improving the cooling efficiency of the cooling tower.
[0018] Optionally, one ends of the plurality of water distribution pipes are rotatably connected to the main water pipe, the other ends are provided with connecting rods, the connecting rods are rotatably connected to the side wall of the tower body, a sprocket is fixedly connected to the connecting rods, the plurality of sprockets are rotatably arranged inside the tower body, a chain is sleeved outside the sprockets, and a driving assembly for driving the water distribution pipes to rotate is provided on the tower body.
[0019] By adopting the above technical solution, driven by the driving assembly, a plurality of water distribution pipes rotate synchronously inside the tower body, and under the control of the driving assembly, the water distribution pipes rotate forward and reverse within a certain range. During the rotation process, the water outlet directions of the nozzles on the water distribution pipes increase, and the contact area between the hot water and the packing increases, thereby increasing the probability of the hot water being cooled by the air, and thus improving the cooling efficiency of the cooling tower.
[0020] Optionally, the driving assembly includes a gear fixedly connected to one of the connecting rods, the gear is rotatably arranged on the outer side wall of the tower body, a rack is meshed on one side of the gear, the rack is slidably connected to the outer side wall of the tower body, and an electric push rod is provided on the outer side wall of the tower body, and the output shaft of the electric push rod is fixedly connected to the rack.
[0021] By adopting the above technical solution, after the operator starts the electric push rod, the electric push rod pushes the rack to reciprocate. During the reciprocating movement of the rack, the gear is driven to rotate forward or reverse within a certain range, so that the sprocket coaxially connected to the gear rotates. The rotating sprocket drives the sprockets on the other connecting rods to rotate through the transmission of the chain, thereby realizing the synchronous rotation of all the water distribution pipes and nozzles.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. By providing a rainwater collection tank, a water pump and a return water pipe, when water replenishment is required for the cooling tower, the operator turns on the water pump, and the rainwater inside the rainwater collection tank flows into the main water pipe through the water supply pipe. The rainwater in the main water pipe flows into the packing through the water distribution pipes. The entire water replenishment process no longer completely relies on tap water resources. The rainwater is collected and utilized through the rainwater collection tank and the filter screen, improving the utilization rate of natural water and saving tap water resources;
[0024] 2. By providing a rotating component and a baffle plate, the present application realizes the switching of the object blocked by the baffle plate under the action of the rotating component. When it rains, the baffle plate blocks the air inlet, and the influence of rainwater on the fan is reduced. At the same time, the rainwater falling on the baffle plate will flow along the rainwater collection groove into the rainwater collection box. When it is sunny, the baffle plate blocks the opening of the rainwater collection box to prevent the rainwater stored in the rainwater collection box from partially evaporating due to direct sunlight, further increasing the water storage capacity in the rainwater collection box;
[0025] 3. By providing a water-absorbing sponge and a squeezing component, the water-absorbing sponge can absorb some of the evaporated hot water. Under the action of the water-squeezing component, the hot water absorbed by the water-absorbing sponge is squeezed onto the packing, realizing the recycling of hot water, reducing the required amount of makeup water, and thus reducing the consumption of tap water resources. Brief Description of the Drawings
[0026] Figure 1 is a schematic structural diagram of the present application.
[0027] Figure 2 is a sectional view of the tower body in an embodiment of the present application.
[0028] Figure 3 is Figure 1 the enlarged view of part A in
[0029] Figure 4 is a sectional view of the water distribution pipe in an embodiment of the present application.
[0030] Description of the Reference Numerals: 1, tower body; 101, air inlet; 102, air inlet net plate; 103, air outlet; 2, fan; 3, spraying component; 31, main water pipe; 32, water distribution pipe; 33, nozzle; 4, packing; 5, rainwater collection box; 51, filter screen; 52, connecting pipe; 53, water supply pipe; 54, water pump; 6, baffle plate; 61, rainwater collection groove; 7, rotating component; 71, rotating shaft; 72, worm; 73, worm wheel; 74, first motor; 8, water filter plate; 81, water-absorbing sponge; 9, water squeezing component; 91, second motor; 92, screw rod; 93, guide rod; 94, pressure roller; 10, connecting rod; 11, sprocket; 12, chain; 13, driving component; 131, gear; 132, rack; 133, electric push rod. Detailed Description of the Embodiment
[0031] The following Figures 1-4 further describes the present application in detail with reference to the
[0032] The embodiment of the present application discloses a water-saving countercurrent cooling tower.
[0033] Refer to Figure 1 and Figure 2, A water-saving countercurrent cooling tower includes a tower body 1. An air inlet 101 is opened below the tower body 1, and an air inlet grid plate 102 is installed at the air inlet 101. An air outlet 103 is opened at the top of the tower body 1, and a fan 2 is rotatably connected at the air outlet 103. A spray assembly 3 is arranged below the fan 2. The spray assembly 3 includes a main water pipe 31 installed on the tower body 1. One end of the main water pipe 31 extends into the tower body 1 and is rotatably connected with a plurality of branch water pipes 32. The branch water pipes 32 are perpendicular to the main water pipe 31. A plurality of nozzles 33 are installed on the branch water pipes 32. The plurality of nozzles 33 are evenly distributed at equal intervals in the length direction of the branch water pipes 32. A packing 4 is arranged below the water outlet direction of the nozzles 33.
[0034] Air enters the interior of the tower body 1 through the air inlet grid plate 102. Under the rotation of the fan 2, the air flow in the tower body 1 flows from bottom to top. Hot water flows through the main water pipe 31 to each branch water pipe 32, and finally is sprayed from the nozzles 33 onto the surface of the packing 4. The setting of the plurality of nozzles 33 enlarges the water outlet area of the hot water, making the hot water more evenly dispersed on the surface of the packing 4. The air and the hot water conduct sufficient heat exchange at the packing 4. Finally, the hot water is cooled and flows to the bottom of the tower body 1, and the air is heated and discharged from the air outlet 103 under the action of the fan 2.
[0035] Refer to Figure 1 and Figure 2 , Rain collecting boxes 5 are fixedly installed on the opposite side walls of the tower body 1 close to the air outlet 103. The rain collecting boxes 5 are all lidless boxes. A filter screen 51 is fixedly installed in the rain collecting boxes 5. Connecting pipes 52 are arranged on the outer side walls of the two rain collecting boxes 5. The connecting pipes 52 connect the storage spaces inside the two rain collecting boxes 5. A water supply pipe 53 is communicated with the outer side wall of one of the rain collecting boxes 5. A water pump 54 is installed on the water supply pipe 53. One end of the water supply pipe 53 extends downward and is communicated with the main water pipe 31.
[0036] When it rains, rainwater falls through the opening of the rain collecting box 5 onto the filter screen 51. The filter screen 51 filters the sundries in the rainwater. The filtered rainwater is stored inside the rain collecting box 5. When it is necessary to replenish water to the cooling tower, the operator turns on the water pump 54. The rainwater inside the rain collecting box 5 flows through the water supply pipe 53 into the main water pipe 31. The rainwater in the main water pipe 31 flows into the packing 4 through the branch water pipes 32. The entire water replenishment process no longer completely relies on tap water resources. The collection and utilization of rainwater are realized through the rain collecting box 5 and the filter screen 51, improving the utilization rate of natural water and saving tap water resources.
[0037] Refer to Figure 1 , Figure 2 and Figure 3Two shielding plates 6 are provided at the air outlet 103, and a plurality of rain collecting grooves 61 connected to the rain collecting box 5 are opened on the two shielding plates 6. The rotating shafts of the shielding plates 6 are respectively rotatably connected to the opposite side walls of the tower body 1. When the two shielding plates 6 abut against each other, the two shielding plates 6 are tilted to cover the top of the air outlet 103. When the two shielding plates 6 are both horizontally arranged, the two shielding plates 6 respectively cover the top of the opening of the rain collecting box 5. A rotating component 7 for driving the shielding plates 6 to rotate is provided on the tower body 1.
[0038] The rotating assembly 7 includes a rotating shaft 71 rotatably connected to the tower body 1, and worms 72 with opposite rotation directions are coaxially fixedly connected at both ends of the rotating shaft 71. A worm wheel 73 is meshed with the worm 72, and the worm wheel 73 is fixedly connected to the rotating shaft 71 of the adjacent baffle 6. A first motor 74 is fixedly installed on the outer wall of the tower body 1, and the output shaft of the first motor 74 is fixedly connected to one of the worms 72.
[0039] When it rains, the operator starts the first motor 74, which drives the two worm gears 72 to rotate synchronously. The rotation of the worm gear 72 drives the worm wheel 73 to rotate, thereby causing the two shielding plates 6 to rotate in a direction close to each other. When the two shielding plates 6 abut against each other, the air outlet 103 is blocked and the opening of the rain collecting box 5 is opened. At this time, the shielding plates 6 can not only cover the air outlet 103 to reduce the impact of rainwater on the fan 2, but also the rainwater falling on the shielding plates 6 will flow along the rain collecting trough 61 into the rain collecting box 5, thereby expanding the contact area between the rain collecting box 5 and the rainwater, thereby increasing the available water storage capacity in the rain collecting box 5 and reducing the consumption of tap water resources.
[0040] On sunny days, the operator changes the rotation direction of the worm 72 through the first motor 74, so that the rotating worm wheel 73 rotates with the two baffles 6 in opposite directions. When the two baffles 6 rotate to a horizontal position, the first motor 74 is turned off. At this time, the baffles 6 block the opening of the rain collecting box 5, preventing direct sunlight from partially evaporating the rainwater stored in the rain collecting box 5, thereby further increasing the water storage capacity in the rain collecting box 5.
[0041] Reference Figure 2 A water filter plate 8 is provided above the water distribution pipe 32 , and the water filter plate 8 is fixedly mounted inside the tower body 1 . A water-absorbing sponge 81 is fixedly mounted on the water filter plate 8 , and a water squeezing component 9 is provided on the water-absorbing sponge 81 .
[0042] The water squeezing assembly 9 includes a second motor 91 fixedly installed on the outer side wall of the tower body 1. The output shaft of the second motor 91 extends into the tower body 1 and is fixedly connected to a screw rod 92. The screw rod 92 is rotatably arranged inside the tower body 1. One end of the tower body 1 away from the screw rod 92 is fixedly connected to a guide rod 93. A pressure roller 94 is jointly arranged on the screw rod 92 and the guide rod 93. The pressure roller 94 is slidably arranged on the surface of the water absorption sponge 81. One end of the pressure roller 94 is threadedly connected to the screw rod 92, and the other end is slidably connected to the guide rod 93. The bottom surface of the pressure roller 94 squeezes the water absorption sponge 81.
[0043] Some of the hot water sprayed from the spray head 33 will directly evaporate. The evaporated water vapor is absorbed by the water absorption sponge 81 when it comes into contact with the water absorption sponge 81. At this time, the operator starts the second motor 91, and the second motor 91 drives the screw rod 92 to rotate. The pressure roller 94 threadedly connected to the screw rod 92 moves along the length direction of the water absorption sponge 81, and squeezes out the hot water absorbed in the water absorption sponge 81 during the movement. The hot water drops into the packing 4 under the action of gravity and exchanges heat with the air. Through the synergistic effect of the water absorption sponge 81 and the water squeezing assembly 9, the recycling of hot water is realized, the required makeup water volume of tap water is reduced, and thus the consumption of tap water resources is reduced.
[0044] Refer to Figure 4 , in order to further expand the contact area between the hot water and the packing 4 and improve the cooling efficiency of the cooling tower, one end of each of the multiple sub-water pipes 32 is rotatably connected to the main water pipe 31, and the other end is fixedly connected to a connecting rod 10. One end of each of the multiple connecting rods 10 away from the sub-water pipes 32 is rotatably connected to the side wall of the tower body 1. A sprocket 11 is fixedly installed on each connecting rod 10. The multiple sprockets 11 are rotatably arranged inside the tower body 1. A chain 12 is jointly sleeved outside the multiple sprockets 11. A driving assembly 13 for driving the multiple sub-water pipes 32 to rotate synchronously is arranged on the outer side wall of the tower body 1.
[0045] The driving assembly 13 includes a gear 131 fixedly installed on one of the connecting rods 10. The gear 131 is rotatably arranged on the outer side wall of the tower body 1. A rack 132 is meshed on one side of the gear 131. The rack 132 is slidably arranged on the outer side wall of the tower body 1. An electric push rod 133 is fixedly installed on the outer side wall of the tower body 1. The output shaft of the electric push rod 133 is fixedly connected to the rack 132.
[0046] After the operator starts the electric push rod 133, the electric push rod 133 drives the rack 132 to reciprocate. During the reciprocating movement of the rack 132, the gear 131 is driven to rotate forward or backward within a certain range, so that the sprocket 11 coaxially connected to the gear 131 rotates. The rotating sprocket 11 drives the sprockets 11 on the remaining connecting rods 10 to rotate through the transmission of the chain 12, thus realizing the synchronous rotation of all the water distribution pipes 32 and the gear 131. During the rotation, the water outlet direction of the nozzle 33 increases, and the contact area between the hot water and the packing 4 increases, so that the probability of the hot water being cooled by the air increases, and the cooling efficiency of the cooling tower is improved.
[0047] The implementation principle of a water-saving countercurrent cooling tower in an embodiment of the present application is as follows: When it rains, the operator starts the first motor 74, and the first motor 74 drives the two worms 72 to rotate synchronously. The rotation of the worms 72 drives the worm wheels 73 to rotate, so that the two shutter plates 6 rotate towards each other. When the two shutter plates 6 are in contact with each other, the air outlet 103 is blocked, and the opening of the rainwater collection tank 5 is opened. Rainwater falls onto the filter screen 51 through the rainwater collection groove 61 and the opening of the rainwater collection tank 5. The filter screen 51 filters the sundries in the rainwater, and the filtered water is stored inside the rainwater collection tank 5. When it is necessary to replenish water to the cooling tower, the operator opens the water pump 54, and the rainwater inside the rainwater collection tank 5 flows into the main water pipe 31 through the water supply pipe 53. The rainwater in the main water pipe 31 flows into the packing 4 through the water distribution pipes 32. The entire water replenishment process no longer completely relies on tap water resources. The collection and utilization of rainwater are realized through the rainwater collection tank 5 and the filter screen 51, improving the utilization rate of natural water and saving tap water resources.
[0048] The above are all the preferred embodiments of the present application. Without restricting the protection scope of the present application accordingly, therefore: All equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A water-saving counterflow cooling tower, comprising a tower body (1), a fan (2) and a packing (4), wherein an air outlet (103) and an air inlet (101) are formed on the tower body (1), and is characterized in that, A spray assembly (3) is provided above the filler (4), the spray assembly (3) comprising a main water pipe (31) arranged inside the tower body (1), a plurality of branch water pipes (32) provided on the main water pipe (31), the water outlet direction of the branch water pipes (32) being arranged toward the filler (4), a rain collecting box (5) is provided on the outer wall of the tower body (1), a filter screen (51) is provided in the rain collecting box (5), a water supply pipe (53) connected to the main water pipe (31) is provided on the outer wall of the rain collecting box (5), and a water pump (54) is provided on the water supply pipe (53).
2. The water-saving countercurrent cooling tower according to claim 1, characterized in that, The tower body (1) is provided with shielding plates (6) at both opposite ends. The two shielding plates (6) are rotatably connected to the air outlet (103). When the two shielding plates (6) abut against each other, the shielding plates (6) tilt and cover the air outlet (103). A plurality of rain collecting grooves (61) are provided on the surface of the shielding plates (6). The tower body (1) is provided with a rotating assembly (7) for driving the shielding plates (6) to rotate.
3. The water-saving countercurrent cooling tower according to claim 2, characterized in that, The rotating assembly (7) comprises a rotating shaft (71) rotatably arranged on the tower body (1), and worms (72) with opposite rotation directions are coaxially fixedly connected to both ends of the rotating shaft (71), and worm wheels (73) are meshed on the worms (72), and the worm wheels (73) are respectively fixedly connected to the rotating shaft of the shielding plate (6). A first motor (74) is provided on the tower body (1) for driving one of the worms (72) to rotate.
4. The water-saving countercurrent cooling tower according to claim 1, characterized in that, A water filter plate (8) is provided above the spray assembly (3), a water absorbing sponge (81) is provided on the water filter plate (8), and a water squeezing assembly (9) is provided in the tower body (1).
5. The water-saving countercurrent cooling tower according to claim 4, characterized in that, The water squeezing assembly (9) comprises a pressure roller (94) slidably arranged on the water-absorbing sponge (81), the bottom surface of the pressure roller (94) squeezes the water-absorbing sponge (81), a screw rod (92) is rotatably connected in the tower body (1), one end of the pressure roller (94) is threadedly connected to the screw rod (92), and a second motor (91) for driving the screw rod (92) to rotate is provided on the outer wall of the tower body (1).
6. The water-saving countercurrent cooling tower according to claim 1, characterized in that The spray assembly (3) further comprises a plurality of spray heads (33) arranged on the water distribution pipe (32), and the water outlet direction of the spray heads (33) is arranged toward the filler (4).
7. A water-saving countercurrent cooling tower according to claim 1, characterized in that, One end of the plurality of water distribution pipes (32) is rotatably connected to the main water pipe (31), and the other end is provided with a connecting rod (10). The connecting rod (10) is rotatably connected to the side wall of the tower body (1). A sprocket (11) is fixedly connected to the connecting rod (10). The plurality of sprockets (11) are rotatably arranged inside the tower body (1). A chain (12) is commonly sleeved outside the sprockets (11). A driving component (13) for driving the water distribution pipes (32) to rotate is provided on the tower body (1).
8. A water-saving countercurrent cooling tower according to claim 7, characterized in that, The driving component (13) includes a gear (131) fixedly connected to one of the connecting rods (10). The gear (131) is rotatably arranged on the outer side wall of the tower body (1). A rack (132) is meshed on one side of the gear (131). The rack (132) is slidably connected to the outer side wall of the tower body (1). An electric push rod (133) is arranged on the outer side wall of the tower body (1). The output shaft of the electric push rod (133) is fixedly connected to the rack (132).