Industrial circulating water efficient filtering and descaling device

Abstract

The utility model discloses an industrial circulating water high -efficient filtration scale removal device relates to water treatment equipment technical field. The device includes the casing, the wedge net filter core and the driving motor. Its core lies in, is equipped with the impeller of rotating by motor drive in the casing, is fixed with the silica gel scraper of close filter core outer wall and the high pressure nozzle of the filter core outer wall to the impeller. The utility model discloses through the collaborative cleaning mode of high pressure injection and mechanical scraping, has removed the tenacious incrustation and biological slime on the filter core surface efficiently, has solved the technical problem of not being complete, filter core easy to block of prior art cleaning, has guaranteed the long -term stable operation of filter device. The device compact structure, self -cleaning effect is good, and the practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of water treatment equipment technology, and in particular to a high-efficiency filtration and descaling device for industrial circulating water. Background Technology

[0002] During the production process, industrial circulating water inevitably becomes contaminated with suspended impurities, breeds bacteria and algae, and forms scale due to continuous evaporation and concentration, temperature changes, and contact with air. To ensure the efficiency of heat exchange equipment and extend the service life of the piping system, continuous filtration of the circulating water is essential.

[0003] Currently, online self-cleaning filters are the mainstream equipment in this field, capable of cleaning the filter screen without interrupting system operation. One of the most common self-cleaning methods is backwashing. This technology reverses the direction of local water flow, using filtered clean water to backwash the filter screen, flushing away and discharging trapped impurities. However, while this method is effective at removing particulate, non-sticky impurities, the backwashing force is often insufficient to effectively remove biological slime, grease, and stubborn scale commonly found in industrial circulating water. This results in incomplete cleaning, and the filter's performance will significantly decline over time.

[0004] To address these stubborn deposits, some improved technologies employ mechanical scraping. This involves using a scraper or brush closely attached to the filter screen, driven by a motor, to physically remove the deposits. While this method is more effective than backwashing at removing hard scale, it can be problematic when dealing with large amounts of viscous biological slime. The simple scraping action may spread the slime across the filter screen rather than completely remove it, and may even force the dirt into the gaps in the screen, exacerbating clogging. Furthermore, mechanical scraping alone is not ideal for removing semi-solid, viscoelastic layers of dirt. Currently, there is a lack of online self-cleaning filtration devices that effectively combine powerful impact with physical stripping to efficiently and thoroughly remove complex stubborn deposits, including hard scale and biological slime.

[0005] Therefore, this utility model proposes a high-efficiency filtration and descaling device for industrial circulating water to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems that existing industrial circulating water filters have incomplete cleaning, easy clogging of filter elements, and rapid decline in filtration performance when dealing with viscous biological slime and hard scale, this utility model aims to provide an industrial circulating water high-efficiency filtration and descaling device with an improved structure that can effectively solve the above problems.

[0007] This utility model provides an efficient industrial circulating water filtration and descaling device, comprising: a housing, a wedge-shaped mesh filter element disposed within the housing, a drive motor; and a drive shaft connected to the drive motor, an impeller connected to the drive shaft, and a cleaning component fixed to the impeller.

[0008] The cleaning component includes a silicone scraper and a high-pressure nozzle. The scraping surface of the silicone scraper is in close contact with the outer wall of the wedge-shaped mesh filter element, and the nozzle of the high-pressure nozzle faces the outer wall of the wedge-shaped mesh filter element.

[0009] Furthermore, the drive motor is connected to the transmission shaft, the transmission shaft is fixedly connected to the impeller, and the cleaning component is fixed on the impeller, thereby forming a cleaning mechanism that can rotate around the wedge-shaped filter element.

[0010] Preferably, a spiral water distributor is also coaxially connected to the impeller.

[0011] Preferably, the device further includes a water pump, which is connected to the high-pressure nozzle via a second delivery pipe to provide a high-pressure water flow to the high-pressure nozzle.

[0012] Preferably, the lower part of the shell is integrally formed with a scale collection chamber, and the bottom of the scale collection chamber is provided with a scale discharge valve, which is connected to the sewage outlet through a conveying pipe.

[0013] Preferably, the inlet is connected to the housing via a delivery pipe, and the inner cavity of the wedge-shaped filter element is connected to a guide pipe, which is connected to the outlet.

[0014] Preferably, the cleaning assembly further includes a support rod, through which the silicone scraper is vertically connected to the impeller.

[0015] Preferably, the device further includes a control cabinet, which is electrically connected to the drive motor and the water pump respectively.

[0016] Preferably, the bottom of the housing is also connected to a support foot.

[0017] This utility model has the following beneficial effects: 1. This utility model solves the problem that existing industrial circulating water filters, when dealing with viscous impurities and stubborn scale, rely solely on backwashing or mechanical scraping for cleaning, which is ineffective and prone to clogging. It achieves the technical effect of high-pressure water flow impact softening and physical scraping peeling working synergistically to efficiently and thoroughly remove the deposits on the outer wall of the filter element, significantly improving the device's online self-cleaning ability and filtration stability.

[0018] 2. This utility model solves the problem that traditional self-cleaning filters rely on timers or differential pressure sensors for sewage discharge control, which not only increases the complexity of the equipment and the number of failure points, but also makes it impossible to accurately discharge sewage according to the actual amount of dirt. It achieves the technical effect of automatically triggering sewage discharge according to the actual weight of the collected impurities, realizes the passive automation of the sewage discharge process, and reduces energy consumption and the complexity of the control system.

[0019] 3. This utility model solves the problem of premature blockage of the filter element and insufficient utilization of the filtration area caused by uneven flow velocity when the water to be filtered enters the filter element cavity due to the spiral water distributor connected to the impeller and rotating synchronously. It achieves the technical effect of evenly distributing the incoming water flow to the entire outer wall of the wedge-shaped mesh filter element, ensuring the uniformity of the filtration load and extending the effective filtration time of the filter element before entering the cleaning cycle. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of an industrial circulating water high-efficiency filtration and descaling device proposed in this utility model. Figure 2 This is a schematic diagram of the three-structure conveying pipe of an industrial circulating water high-efficiency filtration and descaling device proposed in this utility model; Figure 3 This is a schematic diagram of the wedge-shaped mesh filter element structure of an industrial circulating water high-efficiency filtration and descaling device proposed in this utility model; Figure 4 This is a schematic diagram of the impeller structure of an industrial circulating water high-efficiency filtration and descaling device proposed in this utility model.

[0021] Legend: 1. Support feet; 2. Housing; 3. Outlet; 4. Control cabinet; 5. Inlet; 6. Delivery pipe one; 7. Drive motor; 8. Cleaning components; 81. Scale discharge valve; 82. Scale collection bin; 83. Silicone scraper; 9. Water pump; 10. Delivery pipe two; 11. Drain outlet; 12. Delivery pipe three; 13. Guide pipe; 14. Wedge-shaped mesh filter element; 15. High-pressure nozzle; 16. Spiral water distributor; 17. Impeller; 18. Support rod; 19. Drive shaft. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] Please refer to Figures 1 to 4 This utility model provides an efficient industrial circulating water filtration and descaling device, which aims to solve the technical problems in the prior art where the filter element of the industrial circulating water filter is easily clogged due to the adhesion of impurities and scale, the filtration efficiency decreases, and the online self-cleaning effect is poor.

[0024] like Figure 1 As shown, this industrial circulating water high-efficiency filtration and descaling device includes a shell 2, a wedge-shaped mesh filter element 14 disposed inside the shell 2, and a drive motor 7. The shell 2 is a hollow vertical tank structure, with multiple support feet 1 fixedly connected to its bottom by welding. The support feet 1 are used to stably support the entire device on the ground. The upper part of the shell 2 is provided with a water inlet 5, and the lower part is provided with a water outlet 3. The drive motor 7 is fixedly installed on the top outer wall of the shell 2 by bolts. Please refer to... Figure 3 The wedge-shaped filter element 14 is cylindrical and is vertically installed in the middle of the inner cavity of the housing 2. The wedge-shaped filter element 14 is formed by welding V-shaped wires to the support strip, and its outer wall surface is the filter surface.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The output end of the drive motor 7 is fixedly connected to a drive shaft 19 via a coupling. The drive shaft 19 passes vertically through the top of the housing 2 and extends into its inner cavity. A dynamic seal is provided at the mating point between the drive shaft 19 and the top of the housing 2 to prevent liquid leakage. An impeller 17 is fixed to the end of the drive shaft 19 via a key connection. The impeller 17 has a disc-shaped structure with multiple blades evenly distributed circumferentially for impact by water flow. The cleaning component 8 is fixedly installed on the bottom surface of the impeller 17 and rotates synchronously with the impeller 17. The cleaning component 8 includes silicon... The silicone scraper 83 is a long, elastic strip structure that is fixedly connected to the impeller 17 by a support rod 18. The scraping edge of the silicone scraper 83 is tightly attached to the entire outer circumference of the wedge-shaped filter element 14 under its own elasticity, and is used to scrape off stubborn impurities attached to the surface of the filter element. The high-pressure nozzle 15 is also fixed to the impeller 17 and extends radially along the impeller 17. The nozzle at its end faces the outer wall of the wedge-shaped filter element 14 and is used to spray high-pressure water to impact the surface of the filter element.

[0026] As a preferred embodiment of this utility model, please refer to Figure 4 A spiral water distributor 16 is coaxially fixedly connected to the top of the impeller 17. The spiral water distributor 16 is a disc-shaped structure with spiral oblique water distribution holes, which rotates together with the impeller 17 to evenly distribute the water flow entering from the inlet 5 to the entire outer wall of the wedge-shaped screen filter element 14. As another preferred embodiment, please refer to Figure 1The device also includes a water pump 9, whose outlet 3 is connected to the inlet 5 of the high-pressure nozzle 15 via a delivery pipe 10, for providing a high-pressure water source to the high-pressure nozzle 15; as another preferred embodiment, please refer to Figure 2 The lower part of the shell 2 is a conical structure, with a scale collection chamber 82 integrally formed at its bottom. A scale discharge valve 81 is connected to the lowest point of the scale collection chamber 82 via a flange. The discharge port of the scale discharge valve 81 is connected to a drain port 11 located on the side wall of the shell 2 via a conveying pipe 12. The scale discharge valve 81 is equipped with a counterweight trigger block, used to automatically open the valve for drainage when impurities accumulate to a preset weight in the scale collection chamber 82. As another preferred embodiment, please refer to... Figure 1 and Figure 3 The inlet 5 is connected to the upper filter chamber of the housing 2 via the delivery pipe 6. A guide pipe 13 is fixedly connected to the bottom of the inner cavity of the wedge-shaped mesh filter element 14. The guide pipe 13 is a hollow tubular structure, and its other end is connected to the outlet 3 to collect and discharge the filtered clean water. As another preferred embodiment, please refer to... Figure 4 One end of the support rod 18 is vertically welded to the bottom surface of the impeller 17, and the other end is fixedly connected to the back of the silicone scraper 83, providing stable support for the rotation of the silicone scraper 83. As another preferred embodiment, the device also includes a control cabinet 4, which is electrically connected to the drive motor 7 and the water pump 9 via cables, respectively, for controlling the start, stop and direction of the drive motor 7 and the start and stop of the water pump 9.

[0027] Working principle: In the filtration stage, the circulating water to be treated enters through inlet 5, passes through conveying pipe 6, and impacts the blades of impeller 17. The kinetic energy of the water flow drives impeller 17 and coaxially connected spiral water distributor 16 to rotate together. Spiral water distributor 16 evenly throws the water flow onto the entire outer wall of wedge-shaped mesh filter element 14. Under pressure, the water passes through the gaps of wedge-shaped mesh filter element 14, and impurities in the water are intercepted on the outer wall of the filter element. The filtered clean water enters the guide pipe 13 inside the wedge-shaped mesh filter element 14 and finally flows out from outlet 3. In the cleaning and descaling stage, control cabinet 4 starts drive motor 7. Drive motor 7 drives impeller 17 to rotate at high speed through transmission shaft 19. The cleaning component 8 fixed on impeller 17 also rotates at high speed synchronously. At this time, control cabinet 4 simultaneously starts water pump. 9. The pressure pump 9 delivers high-pressure water through the second delivery pipe 10 to the high-pressure nozzle 15. The rotating high-pressure nozzle 15 continuously sprays high-pressure water onto the outer wall of the wedge-shaped mesh filter element 14 to impact and peel off the sticky deposits on the surface. At the same time, the following silicone scraper 83, supported by the support rod 18, scrapes synchronously against the outer wall of the wedge-shaped mesh filter element 14 with its blade edge, physically peeling off stubborn scale and impurities. The impurities that are washed and scraped off settle into the scale collection chamber 82 at the bottom of the housing 2 under the action of gravity. When the weight of the impurities in the scale collection chamber 82 is sufficient to pull the counterweight trigger block on the scale discharge valve 81, the scale discharge valve 81 automatically opens, and the dirt in the chamber is discharged from the drain port 11 through the third delivery pipe 12, thus completing a complete filtration, self-cleaning and automatic sewage discharge process.

Claims

1. A high-efficiency filtration and descaling device for industrial circulating water, comprising: The housing (2) is provided with an inlet (5) and an outlet (3); A wedge-shaped mesh filter element (14) is disposed inside the housing (2); And the drive motor (7); The device is characterized in that it further includes: The drive shaft (19) is connected to the drive motor (7). An impeller (17) fixedly connected to the drive shaft (19); and a cleaning assembly (8) fixedly connected to the impeller (17), the cleaning assembly (8) comprising: A silicone scraper (83) with its scraping surface in close contact with the outer wall of the wedge-shaped mesh filter element (14); and a high-pressure nozzle (15) with its nozzle facing the outer wall of the wedge-shaped mesh filter element (14).

2. The high-efficiency filtration and descaling device for industrial circulating water according to claim 1, characterized in that, A spiral water distributor (16) is also coaxially connected to the impeller (17).

3. The industrial circulating water high-efficiency filtration and descaling device according to claim 1, characterized in that, The device also includes a water pump (9), which is connected to the high-pressure nozzle (15) via a second delivery pipe (10).

4. The high-efficiency filtration and descaling device for industrial circulating water according to claim 1, characterized in that, The lower part of the shell (2) is integrally formed with a scale collection chamber (82); the bottom of the scale collection chamber (82) is provided with a scale discharge valve (81), and the scale discharge valve (81) is connected to the drain port (11) through the conveying pipe (12).

5. The high-efficiency filtration and descaling device for industrial circulating water according to claim 1, characterized in that, The inlet (5) is connected to the inside of the housing (2) through the delivery pipe (6); the inner cavity of the wedge-shaped filter element (14) is connected to the guide pipe (13), and the guide pipe (13) is connected to the outlet (3).

6. The high-efficiency filtration and descaling device for industrial circulating water according to claim 1, characterized in that, The cleaning assembly (8) also includes a support rod (18), through which the silicone scraper (83) is vertically connected to the impeller (17).

7. The high-efficiency filtration and descaling device for industrial circulating water according to claim 3, characterized in that, The device also includes a control cabinet (4), which is electrically connected to the drive motor (7) and the water pump (9).

8. The high-efficiency filtration and descaling device for industrial circulating water according to claim 1, characterized in that, The bottom of the housing (2) is also connected to a support foot (1).

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