Circulating water filtering device

Abstract

The invention belongs to the field of water filtering, and provides a circulating water filtering device which comprises a fine filtering box, a filtering cavity is formed in the fine filtering box, the two sides of the fine filtering box communicate with a water outlet pipe and a water conveying pipe correspondingly, the water outlet pipe and the water conveying pipe communicate with the filtering cavity, and two mounting cavities are formed in the fine filtering box; the two mounting cavities are respectively formed in the upper side and the lower side of the filtering cavity. The annular water molecule semi-permeable membrane is used for filtering impurities, dirt and florae, the surface of the annular water molecule semi-permeable membrane is smooth, flagellum of the florae is not prone to being attached to the annular water molecule semi-permeable membrane, the florae are easy to clean, the annular water molecule semi-permeable membrane is driven by the three driving rollers and the detection roller assembly, and the detection efficiency is improved. The annular water molecule semi-permeable membrane can be used for filtering at different parts, so that the reduction of the filtering efficiency after the annular water molecule semi-permeable membrane is blocked is avoided.

Description

Technical Field

[0001] The invention belongs to the field of water filtration, and in particular relates to a circulating water filtration device. Background Art

[0002] In the water circulation system of the pump station unit, water is continuously circulated and cooled to reduce the oil temperature, thereby enhancing the reliability and stability of the unit operation. However, after a long period of water circulation, impurities, dirt and bacteria in the water will be deposited in the cooling water pipes, thus affecting the normal operation of the water cooling, reducing the system operation efficiency, and even causing blockage and damage to the equipment.

[0003] Every once in a while, a pump station cooler fully automatic pipe cleaning and pressure testing machine is usually used to clean the impurities, dirt and bacteria in the cooling pipes. In order to prevent these impurities from re-entering the cleaning machine and causing damage to the cleaning machine, a filter is usually used to remove large particles of rust, mud and other pollutants. The filter is installed before the circulating water enters the water tank to achieve the purpose of reusing the circulating water.

[0004] The bacterial flora in the water is a complex and diverse group of microorganisms. These bacteria usually have flagella, can move, and may form biofilms in the water. They are very easy to attach to the surfaces of various objects. The surface of the existing filter is relatively rough, which is very easy for the bacteria to attach to and is not easy to clean. After long-term use, the filter will be completely blocked by the bacteria. The filter needs to be replaced regularly, and the replaced filter is difficult to clean again. Summary of the invention

[0005] The purpose of the present invention is to provide a circulating water filtering device, aiming to solve the technical problem in the prior art that it is difficult to clean the bacteria after they are attached to the existing filter net.

[0006] The present invention is implemented as follows: a circulating water filtering device comprises a fine filter box, a filter chamber is provided inside the fine filter box, a water outlet pipe and a water delivery pipe are connected to the two sides of the fine filter box respectively, the water outlet pipe and the water delivery pipe are both connected to the filter chamber, two installation chambers are provided inside the fine filter box, the two installation chambers are respectively arranged on the upper and lower sides of the filter chamber, and further comprises: A fine filtration component, the fine filtration component includes three transmission rollers and one detection roller assembly, the three transmission rollers and one detection roller assembly are respectively installed in the interior of two installation cavities, and are distributed in a rectangular shape, wherein the three transmission rollers are rotatably installed in the interior of the installation cavity, the detection roller assembly is located at one end of the installation cavity close to the water pipe, and the three transmission rollers and the detection roller assembly are transmission-connected with an annular water molecule semipermeable membrane. Since the surface of the annular water molecule semipermeable membrane is relatively smooth, it is not easy to be attached by the flagella of the bacterial flora, making the bacterial flora easier to clean. The two sides of the annular water molecule semipermeable membrane pass through the interior of the filtration cavity, and are respectively blocked on one side of the water outlet pipe and the water pipe. The fine filtration box is provided with a ring for the two sides of the annular water molecule semipermeable membrane to move. The width of the through hole close to the water pipe is greater than the thickness of the annular water molecule semipermeable membrane. A first motor is fixedly installed on the fine filter box. The output shaft of the first motor is fixedly connected to one end of a transmission roller. The output end of the detection roller assembly is electrically connected to the first motor. When the annular water molecule semipermeable membrane generates sufficient pulling force on the detection roller assembly, the detection roller assembly is connected to the power supply of the first motor, the first motor drives the transmission roller to rotate, and the transmission roller drives the annular water molecule semipermeable membrane to move, thereby adjusting the position of the annular water molecule semipermeable membrane in the filter cavity, so that the other side of the annular water molecule semipermeable membrane filters impurities, and avoids the filtration efficiency being reduced due to clogging of one part of the annular water molecule semipermeable membrane; A scraper assembly is installed inside the installation cavity located below, and the output end of the scraper assembly contacts the outer surface of the annular water molecule semipermeable membrane. The scraper assembly is used to scrape off impurities on the outer surface of the annular water molecule semipermeable membrane, so that the annular water molecule semipermeable membrane can be recycled.

[0007] Further technical solution: The detection roller assembly includes a lifting frame slidably connected to the inside of the installation cavity, a tension roller is rotatably connected to the lifting frame, a tension sensor is fixedly connected to the top of the lifting frame, the tension sensor is fixedly installed on the fine filter box, the output end of the tension sensor is electrically connected to the first motor, and the annular water molecule semipermeable membrane is transmission connected to the tension roller.

[0008] Further technical solution: Both sides of the inner surface of the annular water molecule semipermeable membrane are fixedly connected with rubber strips, and both ends of the plurality of drive rollers and tension rollers are provided with reserved grooves adapted to the rubber strips.

[0009] Further technical solution: Two sealing components are also provided, and the two sealing components are respectively installed on both sides of the filter chamber close to one end of the water pipe, and the output ends of the two filter chambers are elastically abutted against the two side edges of the annular water molecule semipermeable membrane respectively, and the sealing components are used to seal the two side edges of the annular water molecule semipermeable membrane.

[0010] Further technical solution: the sealing assembly includes two rotating plates, and the two rotating plates are symmetrically hinged on the upper and lower sides of the filter chamber. The side surfaces of the two rotating plates are in contact with the side surfaces of the annular water molecule semipermeable membrane facing away from the water pipe. In order to improve the sealing effect, the side surfaces of the two rotating plates are in contact with the side surfaces of the rubber strip. A movable rod is slidably connected to the fine filter box, and a first compression spring is connected between the movable rod and the fine filter box. An abutment plate is fixedly connected to one end of the movable rod close to the rotating plate, and the side surfaces of the abutment plate are in contact with the side surfaces of the two rotating plates.

[0011] Further technical solution: the scraper assembly includes a plurality of mounting seats, the plurality of mounting seats are fixedly connected at equal distances by connecting rods, the two outermost mounting seats are fixedly connected to the bottom of the mounting cavity by fixing rods, all mounting seats are slidably connected with scrapers, a second compression spring is connected between the scraper and the mounting seat, the top of the scraper contacts the outer surface of the annular water molecule semipermeable membrane, when the annular water molecule semipermeable membrane moves, the scraper can scrape off the impurities on the outer surface of the annular water molecule semipermeable membrane, so that the annular water molecule semipermeable membrane can be recycled; In order to improve the scraping effect of the scraper on the annular water molecule semipermeable membrane, the elastic coefficients of the second compression springs close to the middle of the mud scraping assembly are increased successively.

[0012] A further technical solution includes a collecting box, which is inserted into the fine filter box. A drop hole for connecting the collecting box and the mounting cavity is provided inside the fine filter box. The drop hole is located below the scraper assembly, so that impurities scraped from the annular water molecule semipermeable membrane can fall into the collecting box. Then, when the machine stops working, the impurities in the collecting box can be cleaned. In order to clean the collection box during work, a closing plate is also provided. The closing plate is slidably connected to the interior of the fine filter box. The width of the closing plate is greater than the width of the drop hole. The closing plate can block the drop hole. One end of the closing plate extends out of the fine filter box. The fine filter box is provided with a movable groove for the closing plate to move.

[0013] Further technical solution: a coarse filter box and an upper cover are also provided, the upper cover is fixedly installed on the top of the coarse filter box, a circular cavity is opened inside the coarse filter box, a flip plate is rotatably connected inside the circular cavity, activated carbon bags are installed on both sides of the flip plate, the activated carbon bags are used to adsorb impurities with larger particles in the circulating water, the activated carbon bags include a mesh bag and a plurality of activated carbons, the plurality of activated carbons are all wrapped in the mesh bag, the diameter of the activated carbon is larger than the diameter of the holes in the mesh bag, so as to prevent the activated carbon from falling out of the mesh bag, the coarse filter box is close to the fine filter box, and the upper cover is fixedly installed on the top of the coarse filter box, a circular cavity is rotatably connected inside the circular cavity, an activated carbon bag is installed on both sides of the flip plate, the activated carbon bag is used to adsorb impurities with larger particles in the circulating water, the activated carbon bag includes a mesh bag and a plurality of activated carbons, the plurality of activated carbons are all wrapped in the mesh bag, the diameter of the activated carbon is larger than the diameter of the holes in the mesh bag, so as to prevent the activated carbon from falling out of the mesh bag, A water outlet connected to the activated carbon bag is provided on the side of the filter box, the water pipe is connected to the water outlet, a water inlet pipe is connected to the other side of the coarse filter box, the water inlet pipe is connected to the cooling water pipe, a second motor is fixedly installed on the coarse filter box, the output shaft of the second motor is fixedly connected to the side of the flip plate, and a regeneration mechanism is installed inside the coarse filter box. When the activated carbon bag adsorbs enough impurities, the adsorption capacity of the activated carbon bag will decrease. At this time, the regeneration mechanism can be used to regenerate the activated carbon bag to improve the adsorption capacity of the activated carbon bag to impurities.

[0014] Further technical solution: the regeneration mechanism includes two electrode assemblies, the two electrode assemblies are respectively installed on both sides of the coarse filter box, the electrode assembly includes an installation groove and a receiving groove opened inside the coarse filter box, the receiving groove is connected to the installation groove, the receiving groove is connected to the circular cavity, a telescopic rod is installed inside the installation groove, the movable end of the telescopic rod extending into the receiving groove is fixedly connected with an insulating sealing head, the insulating sealing head is interference-connected with the receiving groove to prevent circulating water from entering the installation groove from the receiving groove, and the insulating sealing head is made of insulating material, such as rubber, the insulating sealing head is fixedly connected with an electrode column near the side of the circular cavity, and the two electrode columns are respectively electrically connected to the positive and negative poles of the external power supply; In order to discharge the circulating water and some impurities in the activated carbon bag, a drainage hole is opened inside the coarse filter box, and a drainage pipe connected to the drainage hole is fixedly connected to the side of the coarse filter box, and the gas generated after electrolysis can also be discharged from the drainage pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, an annular water molecule semipermeable membrane is used to filter impurities, dirt and bacterial flora. Since the surface of the annular water molecule semipermeable membrane is relatively smooth, it is not easy to be attached by the flagella of the bacterial flora, so that the bacterial flora is easier to clean. In addition, three transmission rollers and a detection roller assembly are provided to drive the annular water molecule semipermeable membrane, so that the annular water molecule semipermeable membrane can use different parts for filtering, thereby avoiding the reduction of filtration efficiency after the annular water molecule semipermeable membrane is blocked; 2. In the present invention, the tension applied to the annular water molecule semipermeable membrane is detected by a tension sensor, and the degree of blockage of the annular water molecule semipermeable membrane can be detected. When the tension reaches the threshold of the tension sensor, the tension sensor starts the first motor, and the first motor drives the annular water molecule semipermeable membrane to move, so that one side of the annular water molecule semipermeable membrane that is not blocked moves into the filter chamber, thereby improving the filtering efficiency. The device can automatically switch the filtering position of the annular water molecule semipermeable membrane, and is easier to use. 3. In the present invention, rubber strips are arranged on both sides of the inner surface of the annular water molecule semipermeable membrane, and reserved grooves adapted to the rubber strips are opened at both ends of the driving roller and the tension roller, thereby avoiding the slippage between the annular water molecule semipermeable membrane and the driving roller. At the same time, the side of the reserved groove will also prevent the rubber strip from approaching the middle of the driving roller, thereby preventing the annular water molecule semipermeable membrane from approaching the middle under a greater pressure, so that the annular water molecule semipermeable membrane is always in a taut state, preventing the circulating water from leaking from the edge of the annular water molecule semipermeable membrane, thereby avoiding the reduction of the filtering effect of the device; 4. In the present invention, two sealing components are provided. After the annular water molecule semipermeable membrane is blocked and deformed, the side of the annular water molecule semipermeable membrane will lift up the rotating plate. Under the action of the first compression spring, the movable rod squeezes the two rotating plates through the abutment plate. At the same time, the rotating plate squeezes the rubber strip against the side wall of the filter chamber to prevent the circulating water from leaking from the gap between the rubber strip and the side wall of the filter chamber. The provision of the sealing component greatly improves the sealing effect of the annular water molecule semipermeable membrane and improves the filtering effect of the device. 5. In the present invention, when the annular water molecule semipermeable membrane moves, the scraper assembly can scrape off the impurities on the outer surface of the annular water molecule semipermeable membrane, so that the annular water molecule semipermeable membrane can be recycled, avoiding the frequent replacement of the annular water molecule semipermeable membrane; 6. In the present invention, by increasing the elastic coefficient of the second compression spring near the middle of the scraper assembly in sequence, the outermost scraper can first scrape off the impurities with larger particles, and then the scraper in the middle can scrape off the innermost impurities on the annular water molecule semipermeable membrane. Finally, another scraper can scrape off the impurities remaining on the annular water molecule semipermeable membrane. The multi-layer scraping operation can improve its scraping effect. 7. In the present invention, by providing a coarse filter box and an activated carbon bag, the larger impurities in the circulating water can be filtered first, so as to avoid a large amount of impurities from accumulating on the annular water molecule semipermeable membrane, thereby reducing the filtration efficiency of the annular water molecule semipermeable membrane. At the same time, the activated carbon bag is regenerated by the regeneration mechanism, which will decompose the organic matter (bacteria) in the activated carbon, or make the organic matter separate from the activated carbon, thereby improving the adsorption capacity of the activated carbon bag and reducing the frequency of replacing the activated carbon bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the fine filter box in the present invention.

[0018] Figure 3 It is a schematic diagram of the installation structure of the sealing component and the annular water molecule semipermeable membrane in the present invention.

[0019] Figure 4 It is a schematic diagram of the structure of the mud scraping assembly in the present invention.

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the coarse filter box in the present invention.

[0021] Figure 6 For the present invention Figure 5 Enlarged schematic diagram at point A in the middle.

[0022] In the attached drawings: 1, water outlet pipe; 2, first motor; 3, fine filter box; 4, detection roller assembly; 41, tension roller; 42, tension sensor; 43, lifting frame; 5, closing plate; 6, movable groove; 7, collecting box; 8, water pipe; 9, upper cover; 10, water inlet pipe; 11, coarse filter box; 12, drain pipe; 13, second motor; 14, annular water molecule semipermeable membrane; 15, transmission roller; 16, installation cavity; 18, sealing assembly; 181, rotating plate; 182, first compression spring; 1 83. Abutment plate; 184. Movable rod; 19. Sludge scraping assembly; 191. Second compression spring; 192. Fixed rod; 193. Scraper; 194. Mounting seat; 195. Connecting rod; 20. Dropping hole; 21. Rubber strip; 22. Reserved groove; 23. Activated carbon bag; 24. Flip plate; 25. Drain hole; 26. Electrode assembly; 261. Electrode column; 262. Accommodating groove; 263. Insulating sealing head; 264. Mounting groove; 265. Telescopic rod; 27. Water outlet; 28. Filter chamber. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0025] like Figure 1-Figure 4As shown, a circulating water filtering device provided by the present invention includes a fine filter box 3, a filter chamber 28 is provided inside the fine filter box 3, a water outlet pipe 1 and a water delivery pipe 8 are connected to the two sides of the fine filter box 3, and the water outlet pipe 1 and the water delivery pipe 8 are both connected to the filter chamber 28. Two installation chambers 16 are provided inside the fine filter box 3, and the two installation chambers 16 are respectively arranged on the upper and lower sides of the filter chamber 28, and further include: A fine filtration component, the fine filtration component includes three transmission rollers 15 and a detection roller assembly 4, the three transmission rollers 15 and the detection roller assembly 4 are respectively installed in the two installation cavities 16, and are distributed in a rectangular shape, wherein the three transmission rollers 15 are rotatably installed in the installation cavity 16, the detection roller assembly 4 is located at one end of the installation cavity 16 close to the water pipe 8, and the three transmission rollers 15 and the detection roller assembly 4 are transmission-connected with an annular water molecule semipermeable membrane 14. Since the surface of the annular water molecule semipermeable membrane 14 is relatively smooth, it is not easy to be attached by the flagella of the bacterial flora, making the bacterial flora easier to clean. The two sides of the annular water molecule semipermeable membrane 14 pass through the interior of the filter cavity 28, and are respectively blocked on one side of the water outlet pipe 1 and the water pipe 8. The fine filtration box 3 is provided with a transmission mechanism for the two sides of the annular water molecule semipermeable membrane 14 to be transported. The width of the through hole close to the water pipe 8 is greater than the thickness of the annular water molecule semipermeable membrane 14. The fine filter box 3 is fixedly mounted with a first motor 2. The output shaft of the first motor 2 is fixedly connected to one end of a transmission roller 15. The output end of the detection roller assembly 4 is electrically connected to the first motor 2. When the annular water molecule semipermeable membrane 14 generates sufficient pulling force on the detection roller assembly 4, the detection roller assembly 4 is connected to the power supply of the first motor 2, and the first motor 2 drives the transmission roller 15 to rotate, and the transmission roller 15 drives the annular water molecule semipermeable membrane 14 to move, thereby adjusting the position of the annular water molecule semipermeable membrane 14 in the filter chamber 28, so that the other surfaces of the annular water molecule semipermeable membrane 14 are filtered against impurities, thereby avoiding the decrease in filtration efficiency caused by clogging of one part of the annular water molecule semipermeable membrane 14; The scraper assembly 19 is installed inside the installation cavity 16 located below, and the output end of the scraper assembly 19 contacts the outer surface of the annular water molecule semipermeable membrane 14. The scraper assembly 19 is used to scrape off impurities on the outer surface of the annular water molecule semipermeable membrane 14, so that the annular water molecule semipermeable membrane 14 can be recycled.

[0026] After the annular water molecule semipermeable membrane 14 is blocked, it is compressed and deformed by the circulating water, so that a gap is left between the annular water molecule semipermeable membrane 14 and the left side of the through hole. At this time, when the first motor 2 drives the annular water molecule semipermeable membrane 14 to move, impurities on the surface of the annular water molecule semipermeable membrane 14 will not be scraped off by the edge of the through hole. As the unblocked part enters the filter cavity 28, the annular water molecule semipermeable membrane 14 gradually returns to normal. At the same time, the pulling force of the annular water molecule semipermeable membrane 14 on the detection roller assembly 4 is reduced, and the detection roller assembly 4 cuts off the power supply of the first motor 2.

[0027] like Figure 1-Figure 3 As shown, a circulating water filtration device provided by the present invention, in this embodiment, the detection roller assembly 4 includes a lifting frame 43 slidably connected to the inside of the installation cavity 16, and a tension roller 41 is rotatably connected to the lifting frame 43, and a tension sensor 42 is fixedly connected to the top of the lifting frame 43. The tension sensor 42 is fixedly installed on the fine filter box 3, and the output end of the tension sensor 42 is electrically connected to the first motor 2, and the annular water molecule semipermeable membrane 14 is transmission-connected to the tension roller 41.

[0028] When the annular water molecule semipermeable membrane 14 is blocked by the bacterial flora, the passing rate of the circulating water is reduced, and the pressure of the circulating water on the side of the annular water molecule semipermeable membrane 14 increases, so that the annular water molecule semipermeable membrane 14 is deformed by force, and the pulling force of the annular water molecule semipermeable membrane 14 on the tension roller 41 increases, and the tension of the tension roller 41 on the tension sensor 42 increases through the lifting frame 43. When the tension reaches the threshold of the tension sensor 42, the tension sensor 42 is connected to the power supply of the first motor 2, and the first motor 2 drives the transmission roller 15 and the annular water molecule semipermeable membrane 14 to rotate, thereby adjusting the contact position between the annular water molecule semipermeable membrane 14 and the circulating water, so that the unblocked side of the annular water molecule semipermeable membrane 14 moves into the filter chamber 28, thereby improving the passing rate of the circulating water, and the pressure of the circulating water on the annular water molecule semipermeable membrane 14 is reduced, and the power supply of the first motor 2 is cut off, thereby solving the problem of reduced filtration efficiency caused by the blockage of the annular water molecule semipermeable membrane 14.

[0029] like Figure 1-Figure 3 As shown, a circulating water filtration device provided by the present invention, since the surface of the annular water molecule semipermeable membrane 14 is relatively smooth, in order to avoid slipping between the annular water molecule semipermeable membrane 14 and the driving roller 15, in this embodiment, rubber strips 21 are fixedly connected to both sides of the inner surface of the annular water molecule semipermeable membrane 14, and both ends of the plurality of driving rollers 15 and the tension roller 41 are provided with reserved grooves 22 adapted to the rubber strips 21.

[0030] The friction between the reserved groove 22 and the driving roller 15 is relatively large, so as to avoid slipping, which in turn leads to a decrease in the efficiency of adjusting the annular water molecule semipermeable membrane 14. At the same time, the side of the reserved groove 22 also prevents the rubber strip 21 from approaching the middle of the driving roller 15, so as to prevent the annular water molecule semipermeable membrane 14 from approaching the middle under a relatively large pressure, thereby keeping the annular water molecule semipermeable membrane 14 in a taut state, and preventing the circulating water from leaking from the edge of the annular water molecule semipermeable membrane 14, thereby avoiding a decrease in the filtering effect of the device. At the same time, even if the circulating water leaks from the edge of the annular water molecule semipermeable membrane 14 close to the water delivery pipe 8, the circulating water will be filtered again by the annular water molecule semipermeable membrane 14 close to the water outlet pipe 1, which greatly improves the filtering effect.

[0031] like Figure 1-Figure 3 As shown, a circulating water filtration device provided by the present invention is provided. In order to improve the sealing performance of the annular water molecule semipermeable membrane 14 close to one side of the water pipe 8, in this embodiment, two sealing components 18 are further provided. The two sealing components 18 are respectively installed on both sides of the filter chamber 28 close to one end of the water pipe 8. The output ends of the two filter chambers 28 are elastically abutted against the two side edges of the annular water molecule semipermeable membrane 14 respectively. The sealing components 18 are used to seal the two side edges of the annular water molecule semipermeable membrane 14.

[0032] like Figure 2-Figure 3 As shown, a circulating water filtration device provided by the present invention, in this embodiment, the sealing assembly 18 includes two rotating plates 181, and the two rotating plates 181 are symmetrically hinged on the upper and lower sides of the filter chamber 28, and the side surfaces of the two rotating plates 181 are abutted against the side surface of the annular water molecule semipermeable membrane 14 away from the water pipe 8. In order to improve the sealing effect, the side surfaces of the two rotating plates 181 are in contact with the side surfaces of the rubber strip 21, and a movable rod 184 is slidably connected to the fine filter box 3, and a first compression spring 182 is connected between the movable rod 184 and the fine filter box 3, and an abutment plate 183 is fixedly connected to one end of the movable rod 184 close to the rotating plate 181, and the side surfaces of the abutment plate 183 are in contact with the side surfaces of the two rotating plates 181.

[0033] After the annular water molecule semipermeable membrane 14 is blocked and deformed, the side of the annular water molecule semipermeable membrane 14 will lift up the rotating plate 181, and under the action of the first compression spring 182, the movable rod 184 squeezes the two rotating plates 181 through the abutment plate 183. At the same time, the rotating plate 181 squeezes the rubber strip 21 against the side wall of the filter chamber 28 to prevent the circulating water from leaking from the gap between the rubber strip 21 and the side wall of the filter chamber 28. The setting of the sealing assembly 18 greatly improves the sealing effect of the annular water molecule semipermeable membrane 14 and improves the filtering effect of the device.

[0034] like Figure 2and Figure 4 As shown, a circulating water filtration device provided by the present invention, in this embodiment, the scraper assembly 19 includes a plurality of mounting seats 194, the plurality of mounting seats 194 are fixedly connected at equal distances by connecting rods 195, the two outermost mounting seats 194 are fixedly connected to the bottom of the mounting cavity 16 by fixing rods 192, all mounting seats 194 are slidably connected with scrapers 193, a second compression spring 191 is connected between the scraper 193 and the mounting seat 194, the top of the scraper 193 is in contact with the outer surface of the annular water molecule semipermeable membrane 14, when the annular water molecule semipermeable membrane 14 moves, the scraper 193 can scrape off the impurities on the outer surface of the annular water molecule semipermeable membrane 14, so that the annular water molecule semipermeable membrane 14 can be recycled; In order to improve the scraping effect of the scraper 193 on the annular water molecule semipermeable membrane 14, the elastic coefficient of the second compression spring 191 near the middle of the scraper assembly 19 is increased successively. For example, in the present embodiment, there are three mounting seats 194, and the elastic coefficient of the second compression spring 191 located on the outermost side is smaller than the elastic coefficient of the second compression spring 191 in the middle. When there are five mounting seats 194, the elastic coefficient of the outermost second compression spring 191 is smaller than the elastic coefficient of the second compression spring 191 on the inner side, and the elastic coefficient of the second compression spring 191 in the middle is smaller than the elastic coefficient of the second compression spring 191 in the middle. Therefore, the outermost scraper 193 first scrapes away impurities with larger particles, and then the scraper 193 in the middle scrapes away the innermost impurities on the annular water molecule semipermeable membrane 14. Finally, another scraper 193 scrapes away the impurities remaining on the annular water molecule semipermeable membrane 14. The multi-layer scraping operation can improve its scraping effect.

[0035] like Figure 1-Figure 2 As shown, a circulating water filter device provided by the present invention, in order to better remove impurities inside the installation cavity 16, in this embodiment, it also includes a collecting box 7, the collecting box 7 is inserted on the fine filter box 3, the fine filter box 3 is provided with a drop hole 20 for connecting the collecting box 7 and the installation cavity 16, the drop hole 20 is located below the scraper assembly 19, so that the impurities scraped from the annular water molecule semipermeable membrane 14 can fall into the collecting box 7, and then when the work is stopped, the impurities in the collecting box 7 can be cleaned; In order to clean the collecting box 7 during operation, a closing plate 5 is provided. The closing plate 5 is slidably connected to the interior of the fine filter box 3. The width of the closing plate 5 is greater than the width of the drop hole 20. The closing plate 5 can block the drop hole 20. One end of the closing plate 5 extends out of the fine filter box 3. The fine filter box 3 is provided with a movable groove 6 for the closing plate 5 to move.

[0036] The closing plate 5 is pushed to block the blanking hole 20 , and the circulating water in the installation cavity 16 can no longer leak from the blanking hole 20 . Then, the collecting box 7 can be drawn out and the impurities therein can be cleaned.

[0037] like Figure 1 and Figure 5-Figure 6 As shown, a circulating water filtration device provided by the present invention is provided. In order to further improve the filtering effect of the device on circulating water and alleviate the clogging of the annular water molecule semipermeable membrane 14 by impurities, in this embodiment, a coarse filter box 11 and an upper cover 9 are further provided. The upper cover 9 is fixedly installed on the top of the coarse filter box 11. A circular cavity is opened inside the coarse filter box 11. A flip plate 24 is rotatably connected inside the circular cavity. Activated carbon bags 23 are installed on both sides of the flip plate 24. The activated carbon bags 23 are used to adsorb larger impurities in the circulating water. The activated carbon bags 23 include a mesh bag and a plurality of activated carbons. The plurality of activated carbons are all wrapped in the mesh bag. The diameter of the activated carbon is larger than the diameter of the holes in the mesh bag, thereby avoiding The activated carbon falls out of the net bag, and a water outlet 27 connected to the activated carbon bag 23 is provided on the side of the coarse filter box 11 near the fine filter box 3, and the water pipe 8 is connected to the water outlet 27. The other side of the coarse filter box 11 is connected to the water inlet pipe 10, and the water inlet pipe 10 is connected to the cooling water pipeline. A second motor 13 is fixedly installed on the coarse filter box 11, and the output shaft of the second motor 13 is fixedly connected to the side of the flip plate 24. A regeneration mechanism is installed inside the coarse filter box 11. When the activated carbon bag 23 adsorbs enough impurities, the adsorption force of the activated carbon bag 23 will decrease. At this time, the regeneration mechanism can be used to regenerate the activated carbon bag 23 to improve the adsorption force of the activated carbon bag 23 on impurities.

[0038] like Figure 5-Figure 6 As shown, a circulating water filtering device provided by the present invention, in this embodiment, the regeneration mechanism includes two electrode assemblies 26, the two electrode assemblies 26 are respectively installed on both sides of the coarse filter box 11, the electrode assembly 26 includes a mounting groove 264 and a receiving groove 262 opened inside the coarse filter box 11, the receiving groove 262 is connected to the mounting groove 264, the receiving groove 262 is connected to the circular cavity, a telescopic rod 265 is installed inside the mounting groove 264, the movable end of the telescopic rod 265 extending into the receiving groove 262 is fixedly connected with an insulating sealing head 263, the insulating sealing head 263 is interference-connected with the receiving groove 262 to prevent the circulating water from entering the mounting groove 264 from the receiving groove 262, and the insulating sealing head 263 is made of insulating material, such as rubber, and the insulating sealing head 263 is fixedly connected with an electrode column 261 near the side of the circular cavity, and the two electrode columns 261 are respectively electrically connected to the positive and negative poles of the external power supply; In order to discharge the circulating water and some impurities in the activated carbon bag 23, a drainage hole 25 is opened inside the coarse filter box 11, and a drainage pipe 12 connected to the drainage hole 25 is fixedly connected to the side of the coarse filter box 11. The gas generated after electrolysis can also be discharged from the drainage pipe 12.

[0039] When in use, the telescopic rod 265 drives the insulating sealing head 263 and the electrode column 261 to move, so that the electrode column 261 is inserted into the activated carbon bag 23, and the power supply of the electrode column 261 is turned on. Both electrode columns 261 generate current. When the current flows through the activated carbon, the organic matter (bacteria) in the activated carbon will be decomposed, or the organic matter will be separated from the activated carbon, thereby improving the adsorption capacity of the activated carbon bag 23. Of course, the inorganic matter in the activated carbon bag 23 will not be decomposed. Therefore, the device needs to replace the activated carbon bag 23 regularly. The setting of the regeneration mechanism reduces the frequency of replacement of the activated carbon bag 23.

[0040] Working principle: Connect the outlet pipe 1 to the water tank, connect the water inlet pipe 10 to the outlet end of the cooling water pipe, connect the output end of the pump station cooler automatic pipeline cleaning and pressure testing integrated machine to the inlet end of the cooling water pipe, and let circulating water pass into the cooling water pipe. The circulating water will flush the impurities, dirt and bacteria in the cooling water pipe and take them out. The circulating water will enter the coarse filter box 11 from the outlet end of the cooling water pipe, and the activated carbon bag 23 will remove the larger impurities in the circulating water. The impurities, dirt and bacteria are filtered, and the circulating water after coarse filtration enters the filter chamber 28 in the fine filter box 3 through the water delivery pipe 8. Then, the small volume of impurities, dirt and bacteria in the circulating water will be filtered by the annular water molecule semipermeable membrane 14. Only water molecules can pass through the annular water molecule semipermeable membrane 14, and the annular water molecule semipermeable membrane 14 has a higher filtering accuracy for impurities. Then the circulating water enters the water tank from the water outlet pipe 1, and is then extracted and used by the cleaning machine, realizing the recycling of circulating water and saving water resources. When the annular water molecule semipermeable membrane 14 is blocked, the pressure of the circulating water on the annular water molecule semipermeable membrane 14 increases, and the circulating water will compress and deform the annular water molecule semipermeable membrane 14, and the tension of the annular water molecule semipermeable membrane 14 is transmitted to the lifting frame 43 and the tension sensor 42 through the tension roller 41. When the tension reaches the threshold of the tension sensor 42, the tension sensor 42 connects the power of the first motor 2, and the first motor 2 drives the transmission roller 15 to rotate, and the transmission roller 15 drives the annular water molecule semipermeable membrane 14 to move, and the unblocked side of the annular water molecule semipermeable membrane 14 is moved into the filter chamber 28, thereby improving the filtration efficiency of the annular water molecule semipermeable membrane 14. When the pressure of the circulating water on the annular water molecule semipermeable membrane 14 is reduced, the tension of the annular water molecule semipermeable membrane 14 on the tension sensor 42 is less than the threshold of the tension sensor 42, and the power of the first motor 2 is cut off, and the annular water molecule semipermeable membrane 14 stops moving until the annular water molecule semipermeable membrane 14 is blocked by impurities again. When the annular water molecule semipermeable membrane 14 moves, the second compression spring 191 can scrape off the impurities on the surface of the annular water molecule semipermeable membrane 14, so as to facilitate the recycling of the annular water molecule semipermeable membrane 14, and the scraped off impurities will fall into the collection box 7; When there are many impurities in the collecting box 7, the closing plate 5 is pushed to make the closing plate 5 block the material drop hole 20, and then the collecting box 7 is pulled out to clean the impurities in the collecting box 7; After the cooling water pipe is cleaned by the fully automatic pipeline cleaning and pressure testing machine of the pump station cooler, the second motor 13 is started, and the second motor 13 drives the flip plate 24 to rotate 180 degrees, and the flip plate 24 drives the two activated carbon bags 23 to flip, so that the activated carbon bags 23 that have been adsorbed with impurities rotate to the bottom of the flip plate 24, and then the telescopic rod 265 drives the electrode column 261 to move, so that the electrode column 261 is inserted into the activated carbon bag 23, and the power supply of the electrode column 261 is turned on. Both electrode columns 261 generate current. When the current flows through the activated carbon, the organic matter (bacteria) in the activated carbon will be decomposed, or the organic matter will be separated from the activated carbon, thereby improving the adsorption capacity of the activated carbon bag 23; After the pump station cooler fully automatic pipeline cleaning and pressure testing integrated machine uses the ratchet, the activated carbon bag 23 needs to be replaced. When replacing, the upper cover 9 can be opened to expose the activated carbon bag 23, thereby facilitating the replacement of the activated carbon bag 23.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A circulating water filtration device, comprising a fine filtration box (3), characterized in that: The fine filter box (3) has a filter chamber (28) disposed inside, and the two sides of the fine filter box (3) are respectively connected to a water outlet pipe (1) and a water delivery pipe (8), and the fine filter box (3) has two installation chambers (16) disposed inside, the two installation chambers (16) being disposed on the upper and lower sides of the filter chamber (28), and further comprising: A fine filtration assembly, the fine filtration assembly comprising three transmission rollers (15) and a detection roller assembly (4), the three transmission rollers (15) and the detection roller assembly (4) being respectively mounted inside two mounting cavities (16) and arranged in a rectangular shape, wherein the three transmission rollers (15) are all rotatably mounted inside the mounting cavities (16), the detection roller assembly (4) is located at one end of the mounting cavities (16) close to the water pipe (8), and the three transmission rollers (15) and the detection roller assembly (4) are transmission-connected to an annular water molecule semipermeable membrane (14), the annular water molecule semipermeable membrane (14) The two sides of the fine filter box (3) pass through the interior of the filter chamber (28) and are respectively blocked on one side of the water outlet pipe (1) and the water delivery pipe (8). The fine filter box (3) is provided with two through holes for the two sides of the annular water molecule semipermeable membrane (14) to move. The width of the through hole close to the side of the water delivery pipe (8) is greater than the thickness of the annular water molecule semipermeable membrane (14). The fine filter box (3) is fixedly mounted with a first motor (2). The output shaft of the first motor (2) is fixedly connected to one end of a transmission roller (15). The output end of the detection roller assembly (4) is electrically connected to the first motor (2); A scraper assembly (19), the scraper assembly (19) being mounted inside the mounting cavity (16) located below, the output end of the scraper assembly (19) being in contact with the outer surface of the annular water molecule semipermeable membrane (14), the scraper assembly (19) being used to scrape off impurities on the outer surface of the annular water molecule semipermeable membrane (14).

2. The circulating water filtration device according to claim 1, characterized in that: The detection roller assembly (4) comprises a lifting frame (43) slidably connected to the interior of the installation cavity (16); a tension roller (41) is rotatably connected to the lifting frame (43); a tension sensor (42) is fixedly connected to the top of the lifting frame (43); the tension sensor (42) is fixedly installed on the fine filter box (3); an output end of the tension sensor (42) is electrically connected to the first motor (2); and the annular water molecule semipermeable membrane (14) is transmission-connected to the tension roller (41).

3. The circulating water filtration device according to claim 2, characterized in that: Rubber strips (21) are fixedly connected to both sides of the inner surface of the annular water molecule semipermeable membrane (14), and both ends of the plurality of drive rollers (15) and the tension roller (41) are provided with reserved grooves (22) adapted to the rubber strips (21).

4. The circulating water filtration device according to claim 1, characterized in that: It also includes two sealing assemblies (18), the two sealing assemblies (18) being respectively mounted on both sides of the filter chamber (28) close to one end of the water delivery pipe (8), the output ends of the two filter chambers (28) being respectively elastically abutted against both side edges of the annular water molecule semipermeable membrane (14), and the sealing assemblies (18) being used to seal both side edges of the annular water molecule semipermeable membrane (14).

5. The circulating water filtering device according to claim 4, characterized in that: The sealing assembly (18) comprises two rotating plates (181), the two rotating plates (181) are symmetrically hinged at the upper and lower sides of the filter chamber (28), the side surfaces of the two rotating plates (181) are in contact with the side surfaces of the annular water molecule semipermeable membrane (14) facing away from the water delivery pipe (8), and the side surfaces of the two rotating plates (181) are in contact with the side surfaces of the rubber strip (21). A movable rod (184) is slidably connected to the fine filter box (3), a first compression spring (182) is connected between the movable rod (184) and the fine filter box (3), and an abutment plate (183) is fixedly connected to one end of the movable rod (184) close to the rotating plate (181), and the side surfaces of the abutment plate (183) are in contact with the side surfaces of the two rotating plates (181).

6. The circulating water filtration device according to claim 1, characterized in that: The mud scraping assembly (19) comprises a plurality of mounting seats (194), the plurality of mounting seats (194) being fixedly connected at equal distances by connecting rods (195), the two outermost mounting seats (194) being fixedly connected to the bottom of the mounting cavity (16) by fixing rods (192), all the mounting seats (194) being slidably connected with a scraper (193), a second compression spring (191) being connected between the scraper (193) and the mounting seat (194), and the top of the scraper (193) being in contact with the outer surface of the annular water molecule semipermeable membrane (14); The elastic coefficients of the second compression springs (191) close to the middle of the mud scraping assembly (19) increase in sequence.

7. The circulating water filtration device according to claim 1, characterized in that: It also comprises a collecting box (7), the collecting box (7) being inserted into the fine filter box (3), the fine filter box (3) being provided with a drop hole (20) for connecting the collecting box (7) and the mounting cavity (16), the drop hole (20) being located below the mud scraping assembly (19); The invention also comprises a closing plate (5), the closing plate (5) being slidably connected to the interior of the fine filter box (3), the width of the closing plate (5) being greater than the width of the material drop hole (20), the closing plate (5) being capable of blocking the material drop hole (20), one end of the closing plate (5) extending out of the fine filter box (3), and a movable groove (6) for the closing plate (5) to move is provided on the fine filter box (3).

8. The circulating water filtration device according to claim 1, characterized in that: The invention also comprises a coarse filter box (11) and an upper cover (9), wherein the upper cover (9) is fixedly mounted on the top of the coarse filter box (11), a circular cavity is provided inside the coarse filter box (11), a flip plate (24) is rotatably connected inside the circular cavity, activated carbon bags (23) are installed on both sides of the flip plate (24), a water outlet (27) connected to the activated carbon bag (23) is provided on the side of the coarse filter box (11) close to the fine filter box (3), the water delivery pipe (8) is connected to the water outlet (27), the other side of the coarse filter box (11) is connected to the water inlet pipe (10), a second motor (13) is fixedly mounted on the coarse filter box (11), the output shaft of the second motor (13) is fixedly connected to the side of the flip plate (24), and a regeneration mechanism is installed inside the coarse filter box (11), the regeneration mechanism is used to regenerate the activated carbon bag (23).

9. The circulating water filtration device according to claim 8, characterized in that: The regeneration mechanism comprises two electrode assemblies (26), the two electrode assemblies (26) being respectively mounted on two sides of the coarse filter box (11), the electrode assembly (26) comprising a mounting groove (264) and a receiving groove (262) which are arranged inside the coarse filter box (11), the receiving groove (262) being in communication with the mounting groove (264), the receiving groove (262) being in communication with the circular cavity, a telescopic rod (265) being mounted inside the mounting groove (264), a movable end of the telescopic rod (265) extending into the receiving groove (262) being fixedly connected to an insulating sealing head (263), the insulating sealing head (263) being interference-connected with the receiving groove (262), the insulating sealing head (263) being made of insulating material, the insulating sealing head (263) being fixedly connected to the side surface of the circular cavity close to the electrode column (261), the two electrode columns (261) being respectively electrically connected to the positive and negative electrodes of an external power source; A drainage hole (25) is provided inside the coarse filter box (11), and a drainage pipe (12) in communication with the drainage hole (25) is fixedly connected to the side of the coarse filter box (11).

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