A water-saving dry and wet cooling tower

Abstract

The present application relates to a water-saving dry-wet cooling tower, which includes a tower body, a fan, a spray pipe, a coil and a water reservoir. An air inlet is provided on the tower body, and a plurality of louvers are provided on the air inlet. A descaling component is provided in the water reservoir. The descaling component includes a connecting plate slidably arranged on the bottom surface of the water reservoir, and a plurality of scrapers are provided on the connecting plate. The scraping part of the scraper is in contact with the bottom surface of the water reservoir. A driving component is provided in the water reservoir to drive the connecting plate to move along the length direction of the water reservoir. The connecting plate is driven to reciprocate along the length direction of the water reservoir by the driving component. The movement of the connecting plate drives the scraper to scrape the scale accumulated on the bottom surface of the water reservoir, thereby increasing the water storage space inside the water reservoir and increasing the available circulating spray water resources. The present application has the effect of saving water resources.

Description

Technical Field

[0001] The present application relates to the technical field of cooling towers, and in particular to a water-saving dry-wet cooling tower. Background Art

[0002] A dry-wet cooling tower is a cooling tower that operates in both dry and wet conditions. It usually operates in wet conditions in summer, cooling the cooling water in the coil by spraying water and evaporating it. It operates in dry conditions in winter, shuts off the spraying water, starts the fan, and cools the cooling water in the coil by air cooling. Dry-wet cooling towers have the advantage of saving water resources and are often used in areas with severe water shortages.

[0003] In the prior art, dry and wet cooling towers are mostly composed of several parts such as a tower body, a coil, a fan, a circulating water pump, a spray device and a water reservoir, wherein the circulating water pump is used to realize the circulation operation of the spray water. However, since the spray water is usually tap water containing more impurities, the impurities will precipitate after the spray water evaporates, and the impurities will combine with each other to form scale. The scale will accumulate in large quantities on the bottom surface of the water reservoir due to its own precipitation characteristics and adhesion. The large accumulation of scale will reduce the water storage space inside the water reservoir, reduce the available circulating spray water resources, and increase the external water resources that need to be supplemented, which is obviously insufficient. Utility Model Content

[0004] In order to save water resources, the present application provides a water-saving dry-wet cooling tower.

[0005] The water-saving dry-wet cooling tower provided in this application adopts the following technical solution:

[0006] A water-saving dry-wet cooling tower comprises a tower body, a fan, a spray pipe, a coil and a water reservoir, wherein the tower body is provided with an air inlet, the air inlet is provided with a plurality of louvers, a descaling component is provided in the water reservoir, the descaling component comprises a connecting plate slidably arranged on the bottom surface of the water reservoir, a plurality of scrapers are provided on the connecting plate, the scraping parts of the scrapers abut against the bottom surface of the water reservoir, and a driving component is provided in the water reservoir for driving the connecting plate to move along the length direction of the water reservoir.

[0007] By adopting the above technical solution, the connecting plate is driven by the driving component to reciprocate along the length direction of the water reservoir. The movement of the connecting plate drives the scraper to scrape off the scale accumulated on the bottom of the water reservoir, thereby increasing the water storage space inside the water reservoir, increasing the available circulating spray water resources, reducing the external water resources that need to be supplemented, and saving water resources.

[0008] Optionally, the driving assembly includes a screw rod rotatably connected to one end of the water reservoir, a slide groove is provided at the end of the water reservoir away from the screw rod, one end of the connecting plate is threadedly connected to the screw rod, and the other end is provided with a slider slidably engaged with the slide groove, and the tower body is provided with a motor for driving the screw rod to rotate.

[0009] By adopting the above technical solution, after the operator starts the motor, the motor drives the screw to rotate. During the rotation of the screw, the connecting plate threaded on the screw will move along the length direction of the water tank. The movement of the connecting plate drives the slider to move in the slide groove, thereby realizing the scraper to scrape away the scale on the bottom of the water tank. The operator can change the moving direction of the connecting plate by changing the rotation direction of the motor.

[0010] Optionally, the connecting plate is rotatably connected to a plurality of rotating shafts, one end of each rotating shaft is provided with a gear, outer walls of the plurality of gears are meshed with each other, and the outer wall of one gear is meshed with a rack, and the rack is provided on the side wall of the water reservoir.

[0011] By adopting the above technical solution, during the movement of the connecting plate, the gear meshing with the rack rotates, and at the same time, under the transmission action of multiple gears meshing with each other, the multiple gears rotate synchronously and drive the rotating shaft to rotate. The rotating shaft rotates the scraper to scrape off the scale on the bottom of the water tank. The rotating scraper can generate multi-directional force on the scale adhered to the bottom of the water tank, thereby increasing the probability of the scraper removing the scale with strong adhesion, thereby improving the cleaning effect of the scraper.

[0012] Optionally, a filter box is provided on the outer wall of the tower body, a filter screen is slidably connected inside the filter box, a return pipe connecting the spray pipe and the water reservoir is provided on the outer wall of the filter box, and a circulating water pump is provided on the return pipe.

[0013] By adopting the above technical scheme, in the process of the circulating water pump drawing spray water from the water reservoir, impurities such as scale scraped off from the spray water will be filtered by the filter plate, the impurity content of the circulating spray water will be reduced, and the possibility of impurities in the spray water gathering into scale again due to the increase in temperature will be reduced, which reduces the generation of scale to a certain extent, ensures the water storage space in the water reservoir, and saves tap water resources.

[0014] Optionally, the filter screen plate is slidably disposed in the filter box, convex strips are provided on the side walls opposite to the filter screen plate, a groove slidably matched with the convex strips is provided in the filter box, and a handle is provided on the filter screen plate.

[0015] By adopting the above technical solution, when there are too many impurities such as scale accumulated on the filter plate, the operator pulls the handle to pull the filter plate out of the filter box, and puts it back into the filter box after cleaning. The whole process is convenient and quick and reduces the possibility of clogging of the filter plate, thereby reducing the possibility of a reduction in the supply of circulating spray water, and further reducing the possibility of an increase in the amount of tap water replenishment, saving tap water resources.

[0016] Optionally, a water retaining plate is provided at one end of each of the louvers, and the water retaining plate is obliquely arranged inside the tower body, and the water retaining plate and the louvers are arranged in a broken line shape.

[0017] By adopting the above technical solution, the water baffle has a blocking effect on the falling spray water, which reduces the possibility of the spray water passing through the louver and splashing to the outside, reduces the loss of circulating spray water, and saves water resources.

[0018] Optionally, through grooves are provided on opposite side walls of the tower body, and a plurality of fan blades are rotatably arranged in the through grooves. The fan blades are arranged below the air inlet and are used to blow air for spraying water. A rotating component for driving the fan blades to rotate is provided in the tower body.

[0019] By adopting the above technical solution, the spray water will absorb the heat in the cooling water after contacting the coil, thereby increasing the temperature of the spray water and the scaling rate. Under the action of the rotating component, the rotation of the fan blades accelerates the flow rate of the air, thereby achieving air cooling for the falling spray water, reducing the scaling rate of the spray water, and thus reducing the scale content in the water reservoir.

[0020] Optionally, the rotating assembly includes a water wheel rotatably connected to the tower body, the water wheel is arranged above the air inlet, the rotating axis of the water wheel extends outside the tower body and is fixedly connected to a first pulley, the rotating axis of the fan blade is fixedly connected to a second pulley, and a belt is commonly sheathed outside the first pulley and the second pulley.

[0021] By adopting the above technical solution, in the process of spray water falling into the water reservoir, the spray water will impact the water wheel to rotate, the rotation of the water wheel drives the first pulley to rotate, the first pulley drives the second pulley to rotate so as to rotate the fan blades, and the rotating component is used instead of the motor drive to avoid the influence of the heat generated by the motor on the spray water, further improving the cooling effect of the fan blades on the spray water, thereby further reducing the scale content in the water reservoir.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The present application sets a driving component and a descaling component, and the driving component drives the connecting plate to reciprocate along the length direction of the water reservoir. The movement of the connecting plate drives the scraper to scrape the scale accumulated on the bottom of the water reservoir, thereby increasing the water storage space inside the water reservoir, increasing the available circulating spray water resources, and reducing the external water resources that need to be supplemented;

[0024] 2. The present application sets a gear, a rack and a rotating shaft. When the connecting plate moves, the gear meshing with the rack rotates, and the multiple scrapers are driven to rotate synchronously through the connecting action of the rotating shaft. The rotating scrapers can generate multi-directional forces on the scale adhering to the bottom of the water tank, so that the probability of the scale with strong adhesion being removed by the scraper is increased, thereby improving the cleaning effect of the scraper;

[0025] 3. The present application sets a rotating component and fan blades. Under the action of the rotating component, the rotation of the fan blades accelerates the flow rate of air, thereby achieving air cooling for the falling spray water, reducing the scaling rate of the spray water, and thus reducing the scale content in the water reservoir. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of this application.

[0027] Figure 2 It is a cross-sectional view of the tower body in the embodiment of the present application.

[0028] Figure 3 It is a cross-sectional view of the descaling component in the embodiment of the present application.

[0029] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0030] Explanation of the reference numerals: 1. tower body; 101. air outlet; 102. fan; 103. spray pipe; 104. coil; 105. air inlet; 106. louver; 2. water reservoir; 21. chute; 3. filter box; 31. return pipe; 32. circulating water pump; 33. groove; 4. descaling assembly; 41. connecting plate; 42. scraper; 5. rotating shaft; 51. gear; 52. rack; 6. driving assembly; 61. screw rod; 62. slider; 63. motor; 7. filter screen; 71. convex strip; 72. handle; 8. through groove; 81. fan blade; 9. rotating assembly; 91. water wheel; 92. first pulley; 93. second pulley; 94. belt; 10. water baffle. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] The embodiment of the present application discloses a water-saving dry-wet cooling tower.

[0033] Reference Figure 1 and Figure 2 A water-saving dry-wet cooling tower includes a tower body 1, an air outlet 101 is provided on the top of the tower body 1, a fan 102 is rotatably connected to the air outlet 101, a spray pipe 103 is provided below the fan 102, a coil 104 is provided below the water outlet direction of the spray pipe 103, an air inlet 105 is provided on the outer wall of the tower body 1, the air inlet 105 is provided below the coil 104, a plurality of louvers 106 are fixedly installed at the air inlet 105, a water reservoir 2 is provided below the air inlet 105, a filter box 3 is fixedly installed on the outer wall of the water reservoir 2, a return pipe 31 connected to the spray pipe 103 is installed on the outer wall of the filter box 3, and a circulating water pump 32 is provided on the return pipe 31.

[0034] When the cooling water needs to be cooled, the operator introduces the cooling water into the coil 104, starts the fan 102 and introduces spray water into the spray pipe 103. Under the action of the fan 102, the air enters the tower body 1 through the air inlet 105, and the air flows from bottom to top. The spray water in the spray pipe 103 flows downward under the action of gravity. At the same time, under the action of the circulating water pump 32, the spray water falling into the water reservoir 2 can be recycled. When the air and the spray water come into contact with the coil 104, the heat exchange with the cooling water is completed. Finally, the cooled cooling water is discharged from the coil 104, the air is discharged from the air outlet 101, and the spray water is stored in the water reservoir 2.

[0035] Reference Figure 1 , Figure 2 and Figure 3 A descaling assembly 4 is provided inside the water reservoir 2. The descaling assembly 4 includes a connecting plate 41 slidably connected to the bottom surface of the water reservoir 2. A plurality of rotating shafts 5 are rotatably connected inside the connecting plate 41. A scraper 42 is fixedly installed at one end of each rotating shaft 5. The scraping portion of the scraper 42 abuts against the bottom surface of the water reservoir 2. In the present embodiment, the scraper 42 is two scrapers arranged crosswise with each other. A gear 51 is fixedly connected to one end of the rotating shaft 5 away from the scraper 42. A plurality of gears 51 are rotatably connected to the surface of the connecting plate 41 and adjacent gears 51 are meshed with each other. A rack 52 is meshed on the outermost gear 51. The rack 52 is fixedly installed on the side wall of the water reservoir 2 and is parallel to the length direction of the water reservoir 2. A driving assembly 6 for driving the connecting plate 41 to move along the length direction of the water reservoir 2 is also provided inside the water reservoir 2.

[0036] The driving assembly 6 includes a screw rod 61, which is rotatably connected to one end of the water reservoir 2. A slide groove 21 is provided at the other end of the water reservoir 2 away from the screw rod 61. A slider 62 is fixedly installed at one end of the connecting plate 41 close to the slide groove 21. The slider 62 is slidably connected inside the slide groove 21. The end of the connecting plate 41 away from the slide groove 21 is threadedly connected to the screw rod 61. A motor 63 is fixedly installed on the outer wall of the tower body 1, and the output shaft of the motor 63 is fixedly connected to the screw rod 61.

[0037] After the operator starts the motor 63, the motor 63 drives the screw rod 61 to rotate. During the rotation of the screw rod 61, the connecting plate 41 threadedly connected to the screw rod 61 will move along the length direction of the water reservoir 2. The movement of the connecting plate 41 drives the slider 62 to move in the slide groove 21. During the movement of the connecting plate 41 along the length direction of the water reservoir 2, the gear 51 meshing with the rack 52 rotates. At the same time, under the transmission action of the mutual meshing of multiple gears 51, the multiple gears 51 rotate synchronously and drive the rotating shaft 5 to rotate. The rotating shaft 5 causes the scraper 42 to rotate and scrape off the scale on the bottom of the water reservoir 2 at the same time. The rotating scraper 42 can generate multi-directional forces on the scale adhered to the bottom of the water reservoir 2, thereby increasing the probability that the scale with strong adhesion is removed by the scraper 42, and the cleaning effect of the scraper 42 is significantly improved. After the scale is removed, the water storage space inside the water reservoir 2 is increased, the available circulating spray water resources are increased, and the external water resources that need to be supplemented are reduced.

[0038] Reference Figure 2 , Figure 3 and Figure 4 A filter screen plate 7 is slidably connected inside the filter box 3, and a convex strip 71 is fixedly installed on the opposite side wall of the filter screen plate 7. A groove 33 that slides with the convex strip 71 is opened on the inner wall of the filter box 3, and the outer wall of the convex strip 71 is tightly attached to the inner wall of the groove 33. A handle 72 is fixedly installed on the outer wall of the filter screen plate 7.

[0039] In the process of the circulating water pump 32 extracting the spray water in the water storage tank 2, the scale and other impurities scraped off in the spray water will be filtered by the filter plate 7, the impurity content of the circulating spray water will be reduced, and the possibility of impurities in the spray water gathering into scale again due to the increase in temperature will be reduced. At the same time, when the filter plate 7 is blocked, the operator can pull the handle 72 to pull the filter plate 7 out of the filter box 3, and put it back into the filter box 3 after cleaning.

[0040] Reference Figure 2 and Figure 3, through grooves 8 are provided on the opposite side walls of the tower body 1, and a protective net (not shown in the figure) is installed on the side of the through groove 8 away from the inside of the tower body 1, and a rotating shaft (not shown in the figure) is rotatably connected to the center of the protective net, and one end of the rotating shaft extends into the through groove 8 and is fixedly connected to a plurality of fan blades 81, which are arranged below the air inlet 105. The fan blades 81 are used to cool the spray water falling in the tower body 1 by air, and a rotating component 9 for driving the fan blades 81 to rotate is arranged in the tower body 1.

[0041] The rotating assembly 9 includes a water wheel 91 arranged above the air inlet 105, and the water wheel 91 is rotatably connected to the inner wall of the tower body 1. Both ends of the rotating axis of the water wheel 91 extend out of the tower body 1 and are fixedly connected to a first pulley 92. The rotating axis of the fan blade 81 extends out of the outside of the protective plate and is fixedly connected to a second pulley 93. A belt 94 is commonly sleeved on the outside of the first pulley 92 and the second pulley 93.

[0042] In the process of the spray water falling into the water reservoir 2, the spray water will impact the water wheel 91 to rotate, and the rotation of the water wheel 91 drives the first pulley 92 to rotate, and the first pulley 92 drives the second pulley 93 to rotate, thereby rotating the fan blades 81. The rotating fan blades 81 accelerate the flow speed of the air, so that the falling spray water can be cooled by air, the scaling rate of the spray water is reduced, and the scale content in the water reservoir 2 is reduced.

[0043] Reference Figure 2 and Figure 3 In order to reduce the loss of spray water during its falling process, a water retaining plate 10 is fixedly installed at one end of the louver 106 close to the inside of the tower body 1, and the water retaining plate 10 and the louver 106 are arranged in a broken line shape.

[0044] The water retaining plate 10 blocks the falling spray water, thereby reducing the possibility of the spray water passing through the louver and splashing to the outside, reducing the loss of circulating spray water and saving water resources.

[0045] The implementation principle of a water-saving dry-wet cooling tower in the embodiment of the present application is as follows: during the operation of the cooling tower, the operator starts the motor 63, and the motor 63 drives the screw 61 to rotate. During the rotation of the screw 61, the connecting plate 41 threadedly connected to the screw 61 will move along the length direction of the water reservoir 2. The movement of the connecting plate 41 drives the slider 62 to move in the slide groove 21. During the movement of the connecting plate 41 along the length direction of the water reservoir 2, the gear 51 meshing with the rack 52 rotates, and at the same time, the multiple gears 51 are mutually engaged. Under the meshing transmission action, multiple gears 51 rotate synchronously and drive the rotating shaft 5 to rotate. The rotating shaft 5 rotates the scraper 42 and scrapes the scale on the bottom of the water reservoir 2 at the same time. The rotating scraper 42 can generate multi-directional forces on the scale adhered to the bottom of the water reservoir 2, thereby increasing the probability that the scale with strong adhesion is removed by the scraper 42. The cleaning effect of the scraper 42 is significantly improved. After the scale is removed, the water storage space inside the water reservoir 2 is increased, the available circulating spray water resources are increased, and the external water resources that need to be supplemented are reduced.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water-saving dry-wet cooling tower, comprising a tower body (1), a fan (102), a spray pipe (103), a coil (104) and a water reservoir (2), wherein the tower body (1) is provided with an air inlet (105), and the air inlet (105) is provided with a plurality of louvers (106), characterized in that: A descaling assembly (4) is provided in the water reservoir (2), the descaling assembly (4) comprising a connecting plate (41) slidably arranged on the bottom surface of the water reservoir (2), a plurality of scrapers (42) are provided on the connecting plate (41), the scraping parts of the scrapers (42) abut against the bottom surface of the water reservoir (2), and a driving assembly (6) is provided in the water reservoir (2) for driving the connecting plate (41) to move along the length direction of the water reservoir (2).

2. A water-saving dry-wet cooling tower according to claim 1, characterized in that: The driving assembly (6) comprises a screw rod (61) rotatably connected to one end of the water reservoir (2); a slide groove (21) is provided at one end of the water reservoir (2) away from the screw rod (61); one end of the connecting plate (41) is threadedly connected to the screw rod (61); the other end is provided with a slider (62) slidably matched with the slide groove (21); and a motor (63) for driving the screw rod (61) to rotate is provided on the tower body (1).

3. A water-saving dry-wet cooling tower according to claim 1, characterized in that: A plurality of rotating shafts (5) are rotatably connected to the connecting plate (41), one end of each rotating shaft (5) is provided with a gear (51), the outer walls of the plurality of gears (51) are meshed with each other, and the outer wall of one of the gears (51) is meshed with a rack (52), and the rack (52) is provided on the side wall of the water reservoir (2).

4. A water-saving dry-wet cooling tower according to claim 1, characterized in that: A filter box (3) is provided on the outer wall of the tower body (1), a filter screen plate (7) is provided inside the filter box (3), a return pipe (31) connecting the spray pipe (103) and the water reservoir (2) is provided on the outer wall of the filter box (3), and a circulating water pump (32) is provided on the return pipe (31).

5. A water-saving dry-wet cooling tower according to claim 4, characterized in that: The filter screen plate (7) is slidably arranged in the filter box (3), a convex strip (71) is arranged on the opposite side wall of the filter screen plate (7), a groove (33) slidably matched with the convex strip (71) is opened in the filter box (3), and a handle (72) is arranged on the filter screen plate (7).

6. A water-saving dry-wet cooling tower according to claim 1, characterized in that: A water retaining plate (10) is provided at one end of each of the louvers (106); the water retaining plate (10) is arranged obliquely inside the tower body (1); and the water retaining plate (10) and the louvers (106) are arranged in a broken line shape.

7. A water-saving dry-wet cooling tower according to claim 1, characterized in that: Through grooves (8) are provided on opposite side walls of the tower body (1), a plurality of fan blades (81) are rotatably arranged in the through grooves (8), the fan blades (81) are arranged below the air inlet (105), the fan blades (81) are used to blow air for spraying water, and a rotating assembly (9) for driving the fan blades (81) to rotate is provided in the tower body (1).

8. A water-saving dry-wet cooling tower according to claim 7, characterized in that: The rotating assembly (9) comprises a water wheel (91) rotatably connected to the tower body (1); the water wheel (91) is arranged above the air inlet (105); the rotating shaft of the water wheel (91) extends outside the tower body (1) and is fixedly connected to a first belt pulley (92); the rotating shaft of the fan blade (81) is fixedly connected to a second belt pulley (93); and a belt (94) is commonly sleeved outside the first belt pulley (92) and the second belt pulley (93).

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