Filtering device for ultrapure water production

Abstract

The utility model relates to a filtering device for ultrapure water production, which comprises a bottom plate, four corners of the top of the bottom plate are fixedly connected with supporting legs, the tops of the supporting legs are fixedly connected with a supporting plate, one side of the top of the supporting plate is fixedly connected with a protective tank, a centrifugal filtering tank is arranged in the protective tank, an end cover is arranged above the centrifugal filtering tank, and the end cover is fixedly connected with the bottom plate. A second electric telescopic rod is arranged to drive a scraping plate to ascend and descend, the inner wall of the centrifugal filtering tank can be conveniently scraped and cleaned when the centrifugal filtering tank rotates, blocking is avoided, liquid filtered by the centrifugal filtering tank can be conveyed into the filtering and purifying box through a second pump body to be filtered for the second time, and the filtering and purifying efficiency is improved. The liquid purifying and filtering effect is improved, the situation that impurities which are not filtered and intercepted are contained in the liquid, and the later ultrapure water production effect is affected is avoided, water in the cleaning water tank can be conveyed into the centrifugal filtering tank by arranging the first pump body, and self-cleaning of the interior of the centrifugal filtering tank is facilitated.

Description

Technical Field

[0001] The utility model relates to a filtering device, in particular to a filtering device for ultrapure water production, belonging to the technical field of ultrapure water production. Background Art

[0002] Ultrapure water, also known as UP water, refers to water with a resistivity of 18 ohm-cm (25°C). This water contains almost no impurities except water molecules, and no bacteria, viruses, chlorinated dioxins and other organic matter. Of course, it also does not contain any mineral trace elements required by the human body. In other words, it is water from which almost all atoms except oxygen and hydrogen have been removed. It can be used in the preparation process of ultrapure materials (semiconductor component materials, nano-fine ceramic materials, etc.) using distillation, deionization, reverse osmosis technology or other appropriate supercritical fine technology.

[0003] An existing ultrapure water production filtration device with a publication number of CN 208865260 U3 drives a brush head to scrub the inner wall of a filter cartridge through a rotating shaft to scrub away impurities blocking the inner wall, and supplies water to a nozzle through an annular water pipe so that a plurality of nozzles spray water on the filter cartridge, and uses water pressure to flush away impurities, thereby improving filtration efficiency and reducing the number of times the filter cartridge is replaced. The device is easy to operate, has a simple structure, and is relatively labor-saving, but the single-stage filtration effect is average, and some micro impurities will still remain in the liquid after filtration, affecting the subsequent ultrapure water preparation effect. Utility Model Content

[0004] The purpose of the utility model is to provide a filtering device for ultrapure water production in order to solve the above-mentioned problems. By arranging a second electric telescopic rod, the scraper can be driven to rise and fall, so that the inner wall of the centrifugal filter tank can be scraped and cleaned when the centrifugal filter tank rotates to avoid blockage. By arranging a second pump body, the liquid filtered by the centrifugal filter tank can be transported to the inside of the filter purification box for secondary filtration, thereby improving the liquid purification and filtration effect, avoiding the presence of unfiltered and uninterrupted impurities in the liquid, which affects the later ultrapure water production effect. By arranging a first pump body, the water in the cleaning water tank can be transported to the inside of the centrifugal filter tank, which is convenient for self-cleaning of the inside of the centrifugal filter tank.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: a filtering device for ultrapure water production, comprising a bottom plate, support legs are fixedly connected at the four corners of the top of the bottom plate, a support plate is fixedly connected to the top of the support legs, a protective tank is fixedly connected to one side of the top of the support plate, a centrifugal filter tank is arranged inside the protective tank, an end cover is arranged above the centrifugal filter tank, a connecting rod is fixedly connected to the top of the end cover, a cross plate is fixedly connected to the top of the connecting rod, and a cleaning water tank is fixedly connected to one side of the top of the cross plate.

[0006] Preferably, a first electric telescopic rod is fixedly connected to one side of the top of the support plate, the top of the first electric telescopic rod is fixedly connected to the bottom of the cross plate, a positioning rod is slidably connected to one side of the cross plate, and the bottom of the positioning rod is fixedly connected to the top of the support plate.

[0007] Preferably, one side of the bottom of the cleaning water tank is fixedly connected to a first pump body through a pipeline, and the bottom of the first pump body is fixedly connected to a cleaning pipeline, and the end of the cleaning pipeline is located below the end cover.

[0008] Preferably, a servo motor is fixedly connected to the center of the top of the end cover, a stirring shaft is fixedly connected to the output end of the servo motor, a stirring blade is fixedly connected to the periphery of the stirring shaft, a second electric telescopic rod is fixedly connected to one side of the top of the end cover, a water inlet pipe is provided on one side of the second electric telescopic rod, a positioning plate is fixedly connected to the end of the second electric telescopic rod, a scraper is fixedly connected to one side of the positioning plate, a telescopic positioning sleeve is fixedly connected to one side of the top of the positioning plate, and the top of the telescopic positioning sleeve is fixedly connected to the bottom of the end cover.

[0009] Preferably, the inner wall of the centrifugal filter tank is fittedly connected to the side wall of the scraper, a fixing ring is fixedly connected to the periphery of the centrifugal filter tank, the fixing ring is slidably connected to a slot plate, one end of the slot plate is fixedly connected to the inner wall of the protective tank, a first drainage pipe is fixedly connected to both sides of the bottom of the centrifugal filter tank, a first valve body is fixedly connected to the periphery of the first drainage pipe, a second drainage pipe is fixedly connected to the bottom of the protective tank, and a second valve body is fixedly connected to the periphery of the second drainage pipe.

[0010] Preferably, a motor mounting bracket is fixedly connected inside the protective tank, a transmission motor is fixedly connected inside the motor mounting bracket, the output end of the transmission motor is fixedly connected to the bottom center of the centrifugal filter tank, the end of the second drainage pipe is fixedly connected to a second pump body, and one side of the second pump body is fixedly connected to a filter purification box.

[0011] Preferably, the front side of the filter purification box is sealed with a first pull plate and a second pull plate, the rear side of the first pull plate is fixedly connected to a first precision filter screen, the rear side of the second pull plate is fixedly connected to a second precision filter screen, both sides of the first precision filter screen and the second precision filter screen are slidably connected to the inner wall of the filter purification box, and one side of the bottom of the filter purification box is fixedly connected to a drainage pipe.

[0012] The beneficial effects of the utility model are:

[0013] The utility model can drive the centrifugal filter tank to rotate by arranging a transmission motor, and can drive the stirring shaft and the stirring blade to rotate continuously by arranging a servo motor, so as to fully mix and stir the liquid, so that the block impurities in the liquid can be crushed and decomposed, which is convenient for centrifugal filtration. The scraper can be driven to rise and fall by arranging a second electric telescopic rod, which is convenient for the centrifugal filter tank to scrape and clean the inner wall of the centrifugal filter tank when it rotates, so as to avoid clogging. The second pump body can be provided, so that the liquid filtered by the centrifugal filter tank can be transported to the inside of the filter purification box for secondary filtration, so as to improve the liquid purification and filtration effect, and avoid the liquid containing unfiltered and intercepted impurities, which affects the later ultrapure water production effect. The first pump body can be provided, so that the water in the cleaning water tank can be transported to the inside of the centrifugal filter tank, so as to facilitate self-cleaning of the inside of the centrifugal filter tank, and avoid the accumulation of impurities, which affects the later use effect. The first electric telescopic rod can be provided to drive the end cover to rise and fall, so that the staff can regularly repair and maintain the components connected to the end cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the internal structure of the protective tank of the utility model.

[0016] Figure 3 It is a schematic diagram of the end cover structure of the utility model.

[0017] Figure 4 It is a schematic diagram of the internal structure of the filter purification box of the utility model.

[0018] Numbers in the figure: 1. bottom plate; 2. protective tank; 3. centrifugal filter tank; 4. end cover; 5. cleaning water tank; 6. first pump body; 7. stirring blade; 8. first electric telescopic rod; 9. second electric telescopic rod; 10. scraper; 11. fixing ring; 12. second pump body; 13. filter purification box; 14. first precision filter screen; 15. second precision filter screen. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] Example 1 Please refer to Figure 1-4As shown, a filtering device for ultrapure water production includes a bottom plate 1, wherein supporting legs are fixedly connected at the four corners of the top of the bottom plate 1, a support plate is fixedly connected to the top of the supporting legs, a protective tank 2 is fixedly connected to one side of the top of the support plate, a centrifugal filter tank 3 is arranged inside the protective tank 2, an end cover 4 is arranged above the centrifugal filter tank 3, a connecting rod is fixedly connected to the top of the connecting rod, a cross plate is fixedly connected to the top of the cross plate, and a cleaning water tank 5 is fixedly connected to one side of the top of the cross plate.

[0021] Specifically, a first electric telescopic rod 8 is fixedly connected to one side of the top of the support plate, the top of the first electric telescopic rod 8 is fixedly connected to the bottom of the cross plate, a positioning rod is slidably connected to one side of the cross plate, the bottom of the positioning rod is fixedly connected to the top of the support plate, a first pump body 6 is fixedly connected to one side of the bottom of the cleaning water tank 5 through a pipeline, a cleaning pipeline is fixedly connected to the bottom of the first pump body 6, the end of the cleaning pipeline is located below the end cover 4, a servo motor is fixedly connected to the center of the top of the end cover 4, a stirring shaft is fixedly connected to the output end of the servo motor, a stirring blade 7 is fixedly connected to the periphery of the stirring shaft, a second electric telescopic rod 9 is fixedly connected to one side of the top of the end cover 4, a water inlet pipeline is provided on one side of the second electric telescopic rod 9, and a water inlet pipeline is provided on one side of the second electric telescopic rod 9. 9 is fixedly connected to the end with a positioning plate, one side of the positioning plate is fixedly connected to a scraper 10, one side of the top of the positioning plate is fixedly connected to a telescopic positioning sleeve, the top of the telescopic positioning sleeve is fixedly connected to the bottom of the end cover 4, the inner wall of the centrifugal filter tank 3 is fitted with the side wall of the scraper 10, the periphery of the centrifugal filter tank 3 is fixedly connected to a fixing ring 11, the fixing ring 11 is slidably connected to a slot plate, one end of the slot plate is fixedly connected to the inner wall of the protective tank 2, the bottom of the centrifugal filter tank 3 is fixedly connected to a first drainage pipe, the periphery of the first drainage pipe is fixedly connected to a first valve body, the bottom of the protective tank 2 is fixedly connected to a second drainage pipe, the periphery of the second drainage pipe is fixedly connected to a second valve body, and the inside of the protective tank 2 is fixedly connected to a motor installation. The motor mounting frame is fixedly connected with a transmission motor inside, the output end of the transmission motor is fixedly connected to the bottom center of the centrifugal filter tank 3, the end of the second drainage pipe is fixedly connected to the second pump body 12, one side of the second pump body 12 is fixedly connected to the filter purification box 13, the front side of the filter purification box 13 is sealed with a first pull plate and a second pull plate, the rear side of the first pull plate is fixedly connected with a first precision filter screen 14, the rear side of the second pull plate is fixedly connected with a second precision filter screen 15, both sides of the first precision filter screen 14 and the second precision filter screen 15 are slidably connected to the inner wall of the filter purification box 13, one side of the bottom of the filter purification box 13 is fixedly connected with a drainage pipe, and the centrifugal filter tank 3 can be driven to rotate by setting a transmission motor. By setting a servo motor, the stirring shaft and the stirring blade 7 can be driven to rotate continuously, so as to fully mix and stir the liquid, so that the block impurities in the liquid can be crushed and decomposed, which is convenient for centrifugal filtration. By setting a second electric telescopic rod 9, the scraper 10 can be driven to rise and fall, so as to scrape and clean the inner wall of the centrifugal filter tank 3 when the centrifugal filter tank 3 rotates to avoid clogging. By setting a second pump body 12, the liquid filtered by the centrifugal filter tank 3 can be transported to the inside of the filter purification box 13 for secondary filtration, so as to improve the liquid purification and filtration effect, and avoid the presence of unfiltered impurities in the liquid, which affects the later ultrapure water production effect. By setting a first pump body 6, the water in the cleaning water tank 5 can be transported to the inside of the centrifugal filter tank 3, so as to facilitate self-cleaning of the inside of the centrifugal filter tank 3.To avoid the accumulation of impurities that may affect the later use effect, the first electric telescopic rod 8 can be provided to drive the end cover 4 to be raised and lowered, so that the staff can regularly repair and maintain the components connected to the end cover 4.

[0022] When the utility model is in use, the centrifugal filter tank 3 can be driven to rotate by setting a transmission motor, and the stirring shaft and the stirring blade 7 can be driven to rotate continuously by setting a servo motor, so as to fully mix and stir the liquid, so that the block impurities in the liquid are crushed and decomposed, which is convenient for centrifugal filtration. The scraper 10 can be driven to rise and fall by setting a second electric telescopic rod 9, so that the inner wall of the centrifugal filter tank 3 can be scraped and cleaned when the centrifugal filter tank 3 rotates to avoid clogging. The liquid filtered by the centrifugal filter tank 3 can be transported to the inside of the filter purification box 13 for secondary filtration by setting a second pump body 12, so as to improve the liquid purification and filtration effect, and avoid the liquid containing unfiltered impurities, which affects the later ultrapure water production effect. The water in the cleaning water tank 5 can be transported to the inside of the centrifugal filter tank 3 by setting a first pump body 6, so as to facilitate self-cleaning of the inside of the centrifugal filter tank 3, and avoid the accumulation of impurities, which affects the later use effect. The end cover 4 can be driven to rise and fall by setting a first electric telescopic rod 8, so as to facilitate the staff to regularly repair and maintain the components connected to the end cover 4.

[0023] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0024] 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 filtering device for producing ultrapure water, comprising a bottom plate (1), characterized in that: The bottom plate (1) is fixedly connected to supporting legs at the four corners of the top, the supporting legs are fixedly connected to a support plate, the top of the support plate is fixedly connected to a protective tank (2), a centrifugal filter tank (3) is provided inside the protective tank (2), an end cover (4) is provided above the centrifugal filter tank (3), the top of the end cover (4) is fixedly connected to a connecting rod, the top of the connecting rod is fixedly connected to a transverse plate, and the top of the transverse plate is fixedly connected to a cleaning water tank (5); the top of the support plate is fixedly connected to a first electric telescopic rod (8), the top of the first electric telescopic rod (8) is fixedly connected to the bottom of the transverse plate, the side of the transverse plate is slidably connected to a positioning rod, the bottom of the positioning rod is fixedly connected to the top of the support plate; the bottom of the cleaning water tank (5) is connected to one side through a pipe. A first pump body (6) is fixedly connected to the channel, a cleaning pipe is fixedly connected to the bottom of the first pump body (6), and the end of the cleaning pipe is located below the end cover (4); a servo motor is fixedly connected to the center of the top of the end cover (4), an output end of the servo motor is fixedly connected to a stirring shaft, and a stirring blade (7) is fixedly connected to the periphery of the stirring shaft; a second electric telescopic rod (9) is fixedly connected to one side of the top of the end cover (4), a water inlet pipe is provided on one side of the second electric telescopic rod (9), a positioning plate is fixedly connected to the end of the second electric telescopic rod (9), a scraper (10) is fixedly connected to one side of the positioning plate, a telescopic positioning sleeve is fixedly connected to one side of the top of the positioning plate, and the top of the telescopic positioning sleeve is fixedly connected to the bottom of the end cover (4).

2. A filtration device for producing ultrapure water according to claim 1, characterized in that: The inner wall of the centrifugal filter tank (3) is fittedly connected to the side wall of the scraper (10); a fixing ring (11) is fixedly connected to the periphery of the centrifugal filter tank (3); a slot plate is slidably connected to the fixing ring (11); one end of the slot plate is fixedly connected to the inner wall of the protective tank (2); first drainage pipes are fixedly connected to both sides of the bottom of the centrifugal filter tank (3); a first valve body is fixedly connected to the periphery of the first drainage pipe; a second drainage pipe is fixedly connected to the bottom of the protective tank (2); and a second valve body is fixedly connected to the periphery of the second drainage pipe.

3. A filtration device for producing ultrapure water according to claim 2, characterized in that: A motor mounting frame is fixedly connected inside the protection tank (2), a transmission motor is fixedly connected inside the motor mounting frame, an output end of the transmission motor is fixedly connected to the bottom center of the centrifugal filter tank (3), a second pump body (12) is fixedly connected to the end of the second liquid discharge pipe, and a filter purification box (13) is fixedly connected to one side of the second pump body (12).

4. A filtration device for producing ultrapure water according to claim 3, characterized in that: The front side of the filter purification box (13) is sealed with a first pull plate and a second pull plate, the rear side of the first pull plate is fixedly connected to a first precision filter (14), the rear side of the second pull plate is fixedly connected to a second precision filter (15), both sides of the first precision filter (14) and the second precision filter (15) are slidably connected to the inner wall of the filter purification box (13), and one side of the bottom of the filter purification box (13) is fixedly connected to a drainage pipe.

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