A cooling tower circulating water filter and recovery device

Abstract

This utility model relates to the field of cooling tower circulating water filtration, and discloses a cooling tower circulating water filter and recovery device, including a filter tank. A water inlet pipe is connected through and fixedly to the top of the left surface of the filter tank, and an overflow pipe is connected through and fixedly to the top of the right surface of the filter tank. A support leg is fixedly connected to the lower section of the outer wall of the filter tank, and a drain pipe is connected through and fixedly to the lower surface of the filter tank. A valve is installed in the middle section of the drain pipe, and a cover plate is fixedly installed on the upper surface of the filter tank by bolts. In this utility model, through the coordinated cooperation of the screening component and the blocking component, impurities can be automatically cleaned and discharged. The filter plate can filter impurities, which are moved to the edge of the filter plate by the rotation of the cleaning brush and the guidance of the filter plate. Subsequently, the electric push rod is activated to move the baffle down to release the obstruction, and the impurities can be discharged from the drain trough, achieving automatic cleaning, reducing the cost of manual cleaning, and improving the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower circulating water filtration, and in particular to a cooling tower circulating water filtration and recovery device. Background Technology

[0002] In the fields of industrial production and commercial refrigeration, cooling towers are widely used as core heat dissipation equipment. The stable operation of their circulating water system directly affects the heat dissipation efficiency and service life of the equipment. During long-term circulation, the circulating water is prone to mixing with impurities such as dust, silt, and biological slime. If it is not cleaned in time, it will lead to pipe blockage, heat exchanger scaling, increased energy consumption and equipment failure risk.

[0003] Currently, there are various cooling tower circulating water filtration devices on the market, such as screen filters and centrifugal separators. These devices remove impurities from the water through physical interception or centrifugal separation, achieving circulating water purification and recycling to a certain extent, meeting the needs of energy conservation and environmental protection, and are gradually being promoted and applied in various industrial scenarios. However, these devices still have shortcomings in actual use and need to be improved.

[0004] A search revealed Chinese Patent Publication No. CN220276372U, which discloses a cooling tower circulating water filtration device. The device includes a filter box, inside which a first filter plate and a second filter plate are arranged sequentially from bottom to top. A cover is located on the top of the filter box, and a rotating shaft is rotatably connected to the center of the cover. The rotating shaft passes through both the second and first filter plates. A motor is located on the top of the cover, and the output end of the motor passes through the cover and connects to the rotating shaft. Brush plates are located at the bottom of both the first and second filter plates and are connected to the rotating shaft. By installing brush plates on the rotating shaft, cleaning the filter plates is achieved by starting the motor, which drives the rotating shaft to rotate, simultaneously rotating the brush plates to clean the first and second filter plates. This reduces the workload of operators, is simple to operate, and allows for cleaning at any time, ensuring effective filtration.

[0005] Although the device has been improved to some extent, enabling the cleaning of the filter screen, reducing the labor intensity of personnel, and avoiding the problem of impurities clogging and affecting the filtration effect, it still has shortcomings in actual use. When the device is used, the cleaned impurities still remain on the filter screen and cannot be automatically discharged. After a period of time, it still requires personnel to clean it, which is time-consuming and laborious. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a cooling tower circulating water filter and recovery device, which aims to improve the problem that impurities cleaned by the existing device will remain on the filter screen and cannot be automatically discharged, requiring staff to clean it regularly, which is time-consuming and labor-intensive.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a cooling tower circulating water filter and recovery device, comprising a filter tank, an inlet pipe being connected through and fixedly connected to the top of the left surface of the filter tank, an overflow pipe being connected through and fixedly connected to the top of the right surface of the filter tank, a support leg being fixedly connected to the lower section of the outer wall of the filter tank, a drain pipe being connected through and fixedly connected to the lower surface of the filter tank, a valve being provided in the middle section of the drain pipe, a cover plate being fixedly installed on the upper surface of the filter tank by bolts, and a filter cleaning mechanism being provided inside the filter tank;

[0008] The filtration and cleaning mechanism includes a screening component, which includes a drive motor. The drive motor is located on the upper surface of the cover plate. The output shaft of the drive motor is fixedly connected to a rotating shaft. A filter plate is rotatably connected to the outer wall of the rotating shaft. A cleaning brush is fixedly connected to the outer wall of the rotating shaft. A drain trough is provided through the lower surface of the filter tank.

[0009] As a further description of the above technical solution:

[0010] The filtration and cleaning mechanism also includes a blocking assembly, which includes a collection box fixedly connected to the bottom of the inner surface of the filter tank. An electric push rod is provided at the bottom of the inner wall of the filter tank, and a baffle is fixedly connected to the top of the output shaft of the electric push rod. A guide plate is fixedly connected to the inner surface of the filter tank.

[0011] As a further description of the above technical solution:

[0012] The rotating shaft is rotatably connected to the inner surface of the cover plate. There are three sets of filter plates, which are equidistant along the longitudinal direction. Filter holes are opened through the inner surface of each of the three sets of filter plates.

[0013] As a further description of the above technical solution:

[0014] The diameter of the filter holes on the inner surface of the filter plate at the upper position is larger than the diameter of the filter holes on the inner surface of the filter plate at the lower position.

[0015] As a further description of the above technical solution:

[0016] All three sets of filter plates are designed as "flat-topped cones" with a higher center and lower edges.

[0017] As a further description of the above technical solution:

[0018] The lower surface of the electric push rod penetrates the lower surface of the filter tank.

[0019] As a further description of the above technical solution:

[0020] The baffles are provided in three sets, and the guide plates are provided in two sets. The two sets of guide plates and the three sets of baffles are arranged longitudinally at equal intervals and staggered. Each pair of adjacent baffles are fixedly connected by a sliding rod.

[0021] As a further description of the above technical solution:

[0022] The baffle passes through and slides on the inner surface of the guide plate and the collection box, and the slide rod passes through and slides on the inner surface of the guide plate.

[0023] As a further description of the above technical solution:

[0024] The outer wall of the filter plate is provided with a groove, and the inner surface of the guide plate is provided with a protrusion, which is inserted into the inner wall of the groove.

[0025] This utility model has the following beneficial effects:

[0026] 1. In this utility model, through the coordinated cooperation of the screening component and the blocking component, the automatic cleaning and discharge of impurities can be achieved. The filter plate can filter the impurities. Under the action of the rotating cleaning brush and the guide of the filter plate, the impurities will move to the edge of the filter plate. Subsequently, the electric push rod is activated to drive the baffle to move down and release the obstruction. The impurities can then be discharged from the sewage tank, realizing automatic cleaning, reducing the cost of manual cleaning and improving the practicality of the device.

[0027] 2. In this utility model, under the action of the screening component, the three layers of "flat-top cone" filter plates with decreasing pore size can achieve layered filtration, avoiding the problems that large-pore filter holes cannot block small particles of impurities and small-pore filter holes are easily blocked by large particles of impurities, thus ensuring the filtration effect. Furthermore, under the action of the rotating cleaning brush, the accumulation and blockage of impurities can be further avoided, thus ensuring the stability of filtration. Attached Figure Description

[0028] Figure 1 This is a front view of the three-dimensional structure of the overall device in this utility model;

[0029] Figure 2 This is a bottom view of the three-dimensional structure of the filter tank in this utility model;

[0030] Figure 3 This is a three-dimensional cross-sectional view of the overall device in this utility model;

[0031] Figure 4 In this utility model Figure 3 A magnified schematic diagram of the three-dimensional structure of part A in the middle;

[0032] Figure 5 This is a three-dimensional cross-sectional diagram of the blocking component and the screening component in this utility model.

[0033] Legend:

[0034] 1. Filter tank; 2. Inlet pipe; 3. Overflow pipe; 4. Support leg; 5. Drain pipe; 6. Valve; 7. Cover plate; 8. Screening assembly; 81. Drive motor; 82. Rotating shaft; 83. Filter plate; 84. Cleaning brush; 85. Sewage discharge trough; 9. Blocking assembly; 91. Collection box; 92. Electric push rod; 93. Baffle; 94. Guide plate; 95. Slide rod. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a cooling tower circulating water filter and recovery device, comprising a filter tank 1 for filtering cooling tower circulating water. An inlet pipe 2 is fixedly connected to the top of the left surface of the filter tank 1 for the cooling tower circulating water to enter the filter tank 1. An overflow pipe 3 is fixedly connected to the top of the right surface of the filter tank 1. Support legs 4 are fixedly connected to the lower section of the outer wall of the filter tank 1. Three sets of support legs 4 are arranged in a circular array with the center point of the filter tank 1 as the axis. A drain pipe 5 is fixedly connected to the lower surface of the filter tank 1 for the filtered cooling tower circulating water to be discharged. A valve 6 for controlling the opening and closing of the drain pipe 5 is provided in the middle section of the drain pipe 5. The valve 6 is prior art and can be implemented by those skilled in the art; therefore, it will not be described in detail in this case. A cover plate 7 is fixedly installed on the upper surface of the filter tank 1 by bolts. The cover plate 7 is removable. A filtration and cleaning mechanism is provided inside the filter tank 1. The filtration and cleaning mechanism can separate impurities from water in the cooling tower circulating water and can easily collect the impurities.

[0037] Reference Figure 1 - Figure 3The filtration and cleaning mechanism includes a screening component 8 for separating impurities and water in the cooling tower circulating water. The screening component 8 includes a drive motor 81, which is prior art and can be implemented by those skilled in the art. As it is prior art, it will not be described in detail in this case. The drive motor 81 is set on the upper surface of the cover plate 7. The output shaft of the drive motor 81 is fixedly connected to a rotating shaft 82. The drive motor 81 can drive the rotating shaft 82 to rotate. The outer wall of the rotating shaft 82 is rotatably connected to a filter plate 83 for separating impurities and water in the cooling tower circulating water. The outer wall of the rotating shaft 82 is fixedly connected to a cleaning brush 84 for cleaning the filter plate 83. The cleaning brush 84 can remove impurities and prevent impurities from accumulating and clogging. A drain trough 85 is opened through the lower surface of the filter tank 1. The impurities will eventually be discharged from the drain trough 85 under the action of the cleaning brush 84.

[0038] Reference Figure 1 - Figure 3 The rotating shaft 82 is rotatably connected to the inner surface of the cover plate 7. There are three sets of filter plates 83, which are equidistantly distributed along the longitudinal direction. The inner surfaces of the three sets of filter plates 83 are all provided with filter holes. The filter holes can block impurities, but water can pass through to achieve the filtration function. The diameter of the filter holes on the inner surface of the upper filter plate 83 is larger than that on the inner surface of the lower filter plate 83, which can achieve layered filtration. The three sets of filter plates 83 are all set as "flat-top cones" with a high center and low periphery, which can guide impurities and make them move towards the edge of the filter plate 83. The lower surface of the cleaning brush 84 is in contact with the upper surface of the filter plate 83. The bottom end of the cleaning brush 84 is made of rubber, which can carry impurities but will not cause wear to the filter plate 83.

[0039] Reference Figure 3 - Figure 5 The filtration and cleaning mechanism also includes a blocking component 9, which can block water to prevent water from flowing out of the drain trough 85 during the filtration of cooling tower circulating water. The blocking component 9 includes a collection box 91, into which the filtered cooling tower circulating water enters. The collection box 91 is fixedly connected to the bottom of the inner surface of the filter tank 1. An electric push rod 92 is provided at the bottom of the inner wall of the filter tank 1. The electric push rod 92 is existing technology and can be implemented by those skilled in the art. Since it is existing technology, it will not be described in detail in this case. A baffle 93 is fixedly connected to the top of the output shaft of the electric push rod 92. The electric push rod 92 can drive the baffle 93 to move longitudinally. A guide plate 94 is fixedly connected to the inner surface of the filter tank 1. The collection box 91, the baffle 93 and the guide plate 94 do not intersect with the drain trough 85. The edge of the upper surface of the filter plate 83 is flush with the upper surface of the guide plate 94 and the collection box 91.

[0040] Reference Figure 3 - Figure 5The lower surface of the electric push rod 92 penetrates the lower surface of the filter tank 1, facilitating external wiring. Three sets of baffles 93 and two sets of guide plates 94 are provided. The two sets of guide plates 94 and the three sets of baffles 93 are longitudinally and equidistantly staggered. In the initial state, the upper surface of the lower baffle 93 and the lower surface of the upper guide plate 94 are tightly fitted together, maintaining a seal. Each pair of adjacent baffles 93 is fixedly connected by a sliding rod 95. The three sets of baffles 93 move longitudinally synchronously, with the baffles 93 penetrating and sliding within the filter tank 1. The inner surfaces of the guide plate 94 and the collection box 91, as well as the outer wall of the baffle 93 and the contact surfaces of the guide plate 94 and the collection box 91, are tightly fitted to maintain a seal. The slide rod 95 passes through and is slidably connected to the inner surface of the guide plate 94. The outer wall of the filter plate 83 is provided with a groove, and the inner surface of the guide plate 94 is provided with a protrusion. The protrusion is inserted into the inner wall of the groove, which can limit the filter plate 83 and ensure that the filter plate 83 will not rotate when the cleaning brush 84 rotates for cleaning. The bottom end of the groove is provided with a chamfer for easy insertion and positioning with the protrusion.

[0041] Working principle: Before the equipment is started, the electric push rod 92 is in the initial extended state, and the upper surface of the lower position baffle 93 is tightly fitted with the lower surface of the upper position guide plate 94 to form a seal.

[0042] When the equipment is running, the cooling tower circulating water enters the filter tank 1 through the inlet pipe 2 and first comes into contact with the uppermost filter plate 83. The cooling tower circulating water flows downward under the action of gravity and passes through the three filter plates 83 in sequence. The three sets of filter plates 83 can filter impurities of different particle sizes in the cooling tower circulating water to achieve layered filtration. At the same time, the "flat-topped cone" shaped filter plates 83 can guide the impurities, causing them to move towards the edge of the filter plates 83 under the action of gravity and water flow, thus avoiding the accumulation of impurities.

[0043] When the equipment is running, the drive motor 81 is started to drive the rotating shaft 82 to rotate, which in turn drives the cleaning brush 84 to rotate. During the rotation, the cleaning brush 84 cleans the upper surface of the filter plate 83, scraping away the impurities attached to the filter plate 83. The scraped impurities are pushed by the cleaning brush 84 and guided by the filter plate 83, and move to the edge of the filter plate 83 and contact the inner surface of the baffle 93.

[0044] After filtration, the cooling tower circulating water will enter the next process through the drain pipe 5. After the cooling tower circulating water is filtered, the electric push rod 92 is activated to move the baffle 93 downward, removing the obstruction of impurities. The scraped impurities will eventually be discharged through the drain trough 85 under the pushing action of the cleaning brush 84 and the guiding action of the filter plate 83. In actual use, a collection device can be placed at the bottom of the drain trough 85 to collect impurities. After the impurities are discharged, the electric push rod 92 is activated to reset the baffle 93, and then the electric push rod 92 and the drive motor 81 are turned off.

[0045] If the filter plate 83 or cleaning brush 84 needs to be replaced or maintained, the bolts connecting the cover plate 7 to the filter tank 1 can be unscrewed, and then the cover plate 7 can be moved upwards to remove it. After the filter plate 83 or cleaning brush 84 has been replaced or maintained, the reverse steps can be followed to install and reset it.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cooling tower circulating water filter and recovery device, comprising a filter tank (1), characterized in that: A water inlet pipe (2) is connected through and fixedly connected to the top of the left surface of the filter tank (1), an overflow pipe (3) is connected through and fixedly connected to the top of the right surface of the filter tank (1), a support leg (4) is fixedly connected to the lower section of the outer wall of the filter tank (1), a drain pipe (5) is connected through and fixedly connected to the lower surface of the filter tank (1), a valve (6) is provided in the middle section of the drain pipe (5), a cover plate (7) is fixedly installed on the upper surface of the filter tank (1) by bolts, and a filter cleaning mechanism is provided inside the filter tank (1). The filtration and cleaning mechanism includes a sieving component (8), which includes a drive motor (81). The drive motor (81) is located on the upper surface of the cover plate (7). The output shaft of the drive motor (81) is fixedly connected to a rotating shaft (82). A filter plate (83) is rotatably connected to the outer wall of the rotating shaft (82). A cleaning brush (84) is fixedly connected to the outer wall of the rotating shaft (82). A drain trough (85) is provided through the lower surface of the filter tank (1).

2. A cooling tower circulating water filter and recovery device according to claim 1, characterized in that: The filtration and cleaning mechanism also includes a blocking component (9), which includes a collection box (91). The collection box (91) is fixedly connected to the bottom end of the inner surface of the filter tank (1). An electric push rod (92) is provided at the bottom end of the inner wall of the filter tank (1). A baffle (93) is fixedly connected to the top end of the output shaft of the electric push rod (92). A guide plate (94) is fixedly connected to the inner surface of the filter tank (1).

3. A cooling tower circulating water filter and recovery device according to claim 1, characterized in that: The rotating shaft (82) is rotatably connected to the inner surface of the cover plate (7). There are three sets of filter plates (83). The three sets of filter plates (83) are equidistant along the longitudinal direction. Filter holes are opened through the inner surface of the three sets of filter plates (83).

4. A cooling tower circulating water filter and recovery device according to claim 3, characterized in that: The diameter of the filter holes on the inner surface of the filter plate (83) located at the upper position is larger than the diameter of the filter holes on the inner surface of the filter plate (83) located at the lower position.

5. A cooling tower circulating water filter and recovery device according to claim 1, characterized in that: All three filter plates (83) are configured as "flat-topped cones" with a high center and low periphery.

6. A cooling tower circulating water filter and recovery device according to claim 2, characterized in that: The lower surface of the electric push rod (92) penetrates the lower surface of the filter tank (1).

7. A cooling tower circulating water filter and recovery device according to claim 2, characterized in that: The baffles (93) are provided in three sets, and the guide plates (94) are provided in two sets. The two sets of guide plates (94) and the three sets of baffles (93) are arranged longitudinally at equal intervals and staggered. Each pair of adjacent baffles (93) are fixedly connected by a slide rod (95).

8. A cooling tower circulating water filter and recovery device according to claim 7, characterized in that: The baffle (93) passes through and slides on the inner surface of the guide plate (94) and the collection box (91), and the slide rod (95) passes through and slides on the inner surface of the guide plate (94).

9. A cooling tower circulating water filter and recovery device according to claim 2, characterized in that: The outer wall of the filter plate (83) is provided with a groove, and the inner surface of the guide plate (94) is provided with a protrusion, which is inserted into the inner wall of the groove.

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