CN118479671B - Nanofiltration device and treatment process for water treatment engineering - Google Patents
Nanofiltration device and treatment process for water treatment engineering Download PDFInfo
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- CN118479671B CN118479671B CN202410622615.1A CN202410622615A CN118479671B CN 118479671 B CN118479671 B CN 118479671B CN 202410622615 A CN202410622615 A CN 202410622615A CN 118479671 B CN118479671 B CN 118479671B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/027—Nanofiltration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/04—Backflushing
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nanotechnology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to the technical field of water treatment, in particular to a nanofiltration device and a treatment process for water treatment engineering, comprising a water treatment nanofiltration device shell, wherein a control device is fixedly arranged outside the water treatment nanofiltration device shell, and a disassembly sealing plate is fixedly arranged above the water treatment nanofiltration device shell through bolts, and has the beneficial effects that: through setting up water sedimentation filter assembly and elementary purification subassembly at nanofiltration subassembly front end and can carry out sedimentation filtration and preliminary adsorption purification to water before the water treatment nanofiltration is purified, reduce water and contain large granule thing and flocculation thing, reduce nanofiltration subassembly's filtration load, through improving nanofiltration membrane sleeve to nanofiltration subassembly inside, cooperation through telescopic link, push pedal and joint, the cooperation of collocation back flush pipeline uses, make nanofiltration membrane sleeve can make a round trip to stretch back and forth when the back flush, produce intermittent type nature, periodic activity, simulate the shock wave effect and cooperate the water flow to wash and make the intractable deposit on the nanofiltration membrane not hard up.
Description
Technical Field
The invention belongs to the technical field of water treatment, and particularly relates to a nanofiltration device for water treatment engineering and a treatment process.
Background
The nanofiltration device used in the water treatment engineering is high-efficiency membrane separation technical equipment, and is mainly used for removing or concentrating solutes in a specific particle size range, including small molecular organic matters, multivalent ions and partial monovalent ions, the aperture of the nanofiltration membrane is between an ultrafiltration membrane and a reverse osmosis membrane, a better separation effect is usually achieved on substances with molecular weight of 200-1000 daltons, in the water treatment engineering, the nanofiltration device can effectively remove hardness ions (such as Ca 2 < + >, mg < 2+ >) of calcium, magnesium and the like in water, and inorganic salts such as sulfate, silicate, carbonate and the like, so that the total hardness of water is reduced, the scaling problem is avoided, the nanofiltration membrane can intercept small molecular organic matters with water color and peculiar smell caused by a part, the water quality characteristic is improved, the taste and the safety are improved, but the nanofiltration device mainly relies on the nanofiltration membrane to realize water filtration, but the membrane holes of the nanofiltration membrane are easily blocked by the particles contained in the water, the water efficiency and the water quality are not only influenced, the filtration load of the nanofiltration membrane is also increased, the service life of the nanofiltration membrane is reduced, the traditional Chinese patent document with the publication number CN115536169A is effectively removed, the water quality is matched with a filter element, the filter element with the high-level filter element has a strong-level, the effect is difficult to be removed by the filter element, the filter element is more completely or the filter element is more difficult to be washed by the filter element is more than the filter element is more has a strong-level, and has the filter effect, and has a more-back-washing effect is more can be more completely has the filter element, the filter element is more has a better filter element is more difficult has better filtration effect is more clean by the filter element, and has better filter effect is more has better filter effect, and has better filter effect.
Therefore, the invention provides a nanofiltration device and a treatment process for water treatment engineering, which solve the problem that a backwash assembly in the prior art cannot completely clean particles attached to a filter element, and can simulate the shock wave effect by adopting the improvement of the nanofiltration membrane assembly to generate intermittent and periodic shapes by being matched with water flushing, and can loosen refractory sediments on the nanofiltration membrane by being matched with water flushing, so that the purification efficiency of the nanofiltration membrane can be improved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a nanofiltration device for water treatment engineering and a treatment process, so as to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a nanofiltration device and treatment process for water treatment engineering, includes water treatment nanofiltration device shell, the outside fixed mounting of water treatment nanofiltration device shell has controlling means, the top of water treatment nanofiltration device shell has the dismantlement shrouding through bolt fixed mounting, dismantle one side inner wall rotation of shrouding and install back flush water receiving pipe, inside one side of water treatment nanofiltration device shell is provided with nanofiltration component, inside opposite side of water treatment nanofiltration device shell is provided with water sedimentation filter component and elementary purification subassembly, nanofiltration component includes nanofiltration section of thick bamboo, nanofiltration cartridge stopper, nanofiltration section of thick bamboo fixed mounting is in the inside of water treatment nanofiltration device shell, the nanofiltration cartridge stopper rotates the top internal surface of installing at the nanofiltration section of thick bamboo, the inner wall fixed mounting of nanofiltration cartridge stopper has the back flush pipe with back flush water receiving pipe looks adaptation, the lower extreme fixed mounting of nanofiltration cartridge stopper has the joint, the outside of joint is provided with nanofiltration membrane sleeve, water sedimentation filter component includes the filtration precipitation section of thick bamboo, elementary purification subassembly includes elementary purification section of thick bamboo, the lateral wall top drain pipe fixed mounting of water pipe runs through elementary purification section of thick bamboo.
Preferably, a purified water outlet pipe is fixedly arranged above the side wall of the nanofiltration tube, one end of the purified water outlet pipe penetrates through the side wall of the water treatment nanofiltration device shell, a first water inlet pipe is fixedly arranged on the inner wall of the bottom of the nanofiltration tube, the lower end of the backwashing tube penetrates through the inner wall of the middle of the clamping joint, and the inner surface of the upper end of the backwashing tube is fixedly connected with the outer surface of the lower end of the backwashing water receiving tube through threads.
Preferably, the outside surface evenly distributed of joint has the oblique fixture block of spring, the lower extreme fixed mounting of joint has the telescopic sleeve frame, the lower extreme fixed mounting of telescopic sleeve frame has the seal head, receive the telescopic sleeve and cup joint in the outside of telescopic sleeve frame, receive the telescopic upper end inner wall of telescopic sleeve of filter membrane be provided with the draw-in groove of the oblique fixture block looks adaptation of spring, receive telescopic lower extreme internal surface of filter membrane and the surface of seal head cup joint.
Preferably, the bottom of the nano filter cylinder is fixedly provided with a telescopic rod, the inner surface of the bottom of the nano filter cylinder plug is slidably provided with a push plate, the output end of the nano filter cylinder penetrates through the inner wall of the bottom of the nano filter cylinder and is fixedly connected with the lower surface of the push plate, the upper surface of the bottom of the nano filter cylinder is provided with a sealing gasket matched with the telescopic rod and the water inlet pipe, and the upper surface of the push plate is contacted with the lower end of the sealing head.
Preferably, the upper inner surface of the filtering and precipitating cylinder is fixedly provided with a filtering and precipitating cylinder plug through threads, a filter screen is arranged in the filtering and precipitating cylinder, the side wall of the lower end of the filtering and precipitating cylinder is fixedly provided with a sewage discharge pipe, the outer side of the filtering and precipitating cylinder is provided with a first pump, the end of a water outlet pipe of the first pump penetrates through the inner wall of the bottom of the filtering and precipitating cylinder, the end of a water inlet pipe of the first pump is fixedly provided with a second water inlet pipe, and the second water inlet pipe penetrates through the side wall of the shell of the water treatment nanofiltration device.
Preferably, the upper inner surface of the primary purifying cylinder is fixedly provided with a purifying cylinder plug through threads, the lower end of the purifying cylinder plug is fixedly provided with an active carbon purifying hopper, the active carbon purifying hopper is a porous conical cover, one side of the purifying cylinder plug is provided with a second pump, the water inlet pipe end of the second pump penetrates through the bottom inner wall of the primary purifying cylinder, and the water outlet pipe end of the second pump is fixedly provided with a water conveying pipe.
Preferably, a three-way valve pipe is fixedly arranged between the water delivery pipe and the first water inlet pipe, a back flushing pump is arranged on the other side of the three-way valve pipe, the water inlet pipe end of the back flushing pump is fixedly connected with the front end pipe of the three-way valve pipe, a back flushing drain pipe is fixedly arranged at the water outlet pipe end of the back flushing pump, and the back flushing drain pipe penetrates through the front side wall of the water treatment nanofiltration device shell.
A nanofiltration device treatment process for water treatment engineering comprises the following steps:
step one: the water to be treated is pumped into a filtering and precipitating cylinder through a water inlet pipe II by the pump I, the water is filtered and precipitated from bottom to top through a filter screen and enters the primary purifying cylinder through a drain pipe, and the water is purified through activated carbon in an activated carbon purifying bucket;
step two: the water is subjected to nanofiltration purification, the back flushing end of the three-way valve pipe is closed, the second pump pumps water into the middle of the nanofiltration membrane sleeve in the nanofiltration cartridge through the water pipe, the three-way valve pipe and the first water inlet pipe, the water is subjected to nanofiltration purification through the nanofiltration membrane sleeve in an outward flow way, and the purified water enters the upper part of the nanofiltration cartridge through the water outlet and is discharged through the purified water outlet pipe;
Step three: the back flushing of the nanofiltration membrane sleeve is carried out, one end of the three-way valve pipe connected with the water delivery pipe is closed, the back flushing water receiving pipe is connected with the water pipe, water enters the interior of the nanofiltration membrane sleeve through the back flushing water receiving pipe and the back flushing pipe to flush the nanofiltration membrane sleeve, meanwhile, the telescopic rod works to push the push plate to move up and down, so that the sealing head at the lower end of the clamping joint and the telescopic sleeve frame are telescopic to drive the nanofiltration membrane sleeve to move in a telescopic way, particles adsorbed on the nanofiltration membrane sleeve are flushed and fall off, the back flushing end is opened, and the back flushing water is pumped out through the first water inlet pipe, the push plate and the pump;
Step four: blowdown and change and receive filter membrane sleeve, open at first and dismantle the shrouding, open the drain can discharge the deposit water of filtering the deposit section of thick bamboo below, rotate and pull out the purification section of thick bamboo stopper and can take the activated carbon purification fill to change inside active carbon and adorn back again to the purification section of thick bamboo stopper, rotate again and pull out simultaneously and receive and filter the section of thick bamboo stopper and can take out joint and receive the filter membrane sleeve, downwards pull out and receive the filter membrane sleeve and can change, install again after changing and receive the filter membrane sleeve and make the oblique fixture block of spring receive filter membrane sleeve upper end inner wall joint, install again and receive and filter the section of thick bamboo stopper and can accomplish and receive the change of filter membrane sleeve.
Compared with the prior art, the invention has the beneficial effects that:
Through setting up water sedimentation filter component and elementary purification subassembly in nanofiltration subassembly front end and can carry out sedimentation filtration and preliminary adsorption purification to water before the water treatment nanofiltration is purified, reduce water and contain large granule and flocculation thing, reduce nanofiltration subassembly's filtration load, through improving nanofiltration membrane sleeve to nanofiltration subassembly inside, through the cooperation of telescopic link, push pedal and joint, the cooperation back flush pipeline uses, make nanofiltration membrane sleeve can make a round trip to stretch out and draw back when back flush, intermittent type nature, periodic activity, simulate the shock wave effect and cooperate the water flow to wash and make the intractable deposit on the nanofiltration membrane become flexible, can promote nanofiltration membrane's purification efficiency, the unable problem of wasing to the granule that the filter core adheres to completely of back flush subassembly among the prior art has been solved.
Drawings
FIG. 1 is a schematic view of the overall appearance structure of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the housing of the water treatment nanofiltration device according to the present invention;
FIG. 3 is a schematic view of the removable closure plate of the present invention in an open configuration;
FIG. 4 is a schematic view of the installation structure of the nanofiltration module, the water precipitation filtration module and the primary purification module of the present invention;
FIG. 5 is a schematic diagram of the internal structures of the nanofiltration module, the water precipitation filtration module and the primary purification module according to the present invention;
FIG. 6 is a schematic diagram of the internal structure of the nanofiltration module according to the present invention;
FIG. 7 is a schematic view showing the internal structures of the water sediment filter assembly and the primary purification assembly of the present invention;
FIG. 8 is a schematic drawing of a filter precipitation cartridge plug extraction configuration of the present invention;
FIG. 9 is a schematic diagram of a filter precipitation cartridge of the present invention;
FIG. 10 is a schematic view of the bayonet joint and nanofiltration membrane sleeve structure of the present invention;
FIG. 11 is a schematic view of a deformed structure of a nanofiltration membrane sleeve according to the present invention;
FIG. 12 is a schematic view of the structure of the nanofiltration module of the present invention in a backwashed state;
FIG. 13 is a schematic diagram of a process flow of the present invention.
In the figure: 1. a water treatment nanofiltration device housing; 11. disassembling the sealing plate; 12. back flushing the water receiving pipe; 2. a control device; 3. a nanofiltration assembly; 31. a nanofiltration cartridge; 311. a purified water outlet pipe; 312. a first water inlet pipe; 32. a nanofiltration cartridge plug; 321. a back flushing pipe; 322. a clamping joint; 3221. a spring inclined clamping block; 3222. a telescopic sleeve frame; 3223. a sealing head; 323. a nanofiltration membrane sleeve; 33. a seal ring; 331. a water outlet; 34. a push plate; 35. a telescopic rod; 4. a water precipitation filtration assembly; 41. filtering the precipitation cylinder; 411. a drain pipe; 412. a blow-down pipe; 42. filtering and precipitating a cylinder plug; 43. a first pump; 431. a water inlet pipe II; 44. a filter screen; 5. a primary purification assembly; 51. a primary purification cartridge; 52. a purge cartridge; 521. an activated carbon purifying bucket; 53. a second pump; 531. a water pipe; 54. a three-way valve tube; 55. a back flushing pump; 551. and (5) back flushing the drain pipe.
Detailed Description
In order to make the objects, technical solutions, and advantages of the present invention more apparent, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present invention, are intended to be illustrative only and not limiting of the embodiments of the present invention, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present invention.
Example 1
Referring to fig. 1 to 12, the present invention provides a technical solution: comprises a water treatment nanofiltration device shell 1, a control device 2 is fixedly arranged outside the water treatment nanofiltration device shell 1, a disassembly sealing plate 11 is fixedly arranged above the water treatment nanofiltration device shell 1 through bolts, a backwash water receiving pipe 12 is rotatably arranged on the inner wall of one side of the disassembly sealing plate 11, a nanofiltration component 3 is arranged on one side of the inside of the water treatment nanofiltration device shell 1, a water precipitation filtration component 4 and a primary purification component 5 are arranged on the other side of the inside of the water treatment nanofiltration device shell 1, the nanofiltration component 3 comprises a nanofiltration cylinder 31 and a nanofiltration cylinder plug 32, the nanofiltration cylinder 31 is fixedly arranged inside the water treatment nanofiltration device shell 1, the nanofiltration cylinder plug 32 is rotatably arranged on the inner surface above the nanofiltration cylinder 31, a backwash pipe 321 which is matched with the backwash water receiving pipe 12 is fixedly arranged on the inner wall of the nanofiltration cylinder 32, a clamping connector 322 is fixedly arranged at the lower end of the nanofiltration cylinder plug 32, the outer side of the clamping joint 322 is provided with a nanofiltration membrane sleeve 323, the water precipitation filtering component 4 comprises a filtering precipitation cylinder 41, the primary purification component 5 comprises a primary purification cylinder 51, a drain pipe 411 is fixedly arranged above the side wall of the filtering precipitation cylinder 41, the other end of the drain pipe 411 penetrates through the side wall of the primary purification cylinder 51, a purified water outlet pipe 311 is fixedly arranged above the side wall of the clamping cylinder 31, one end of the purified water outlet pipe 311 penetrates through the side wall of the water treatment nanofiltration device shell 1, the bottom inner wall of the clamping cylinder 31 is fixedly provided with a water inlet pipe 312, the lower end of a backwashing pipe 321 penetrates through the middle inner wall of the clamping joint 322, the inner surface of the upper end of the backwashing pipe 321 is fixedly connected with the outer surface of the lower end of the backwashing water receiving pipe 12 through threads, spring inclined clamping blocks 3221 are uniformly distributed on the outer side surface of the clamping joint 322, the lower end of the clamping joint 322 is fixedly provided with a telescopic sleeve frame 3222, the lower end of the telescopic sleeve frame 3222 is fixedly provided with a sealing head 3223, the nanofiltration membrane sleeve 323 is sleeved outside the telescopic sleeve frame 3222, the inner wall of the upper end of the nanofiltration membrane sleeve 323 is provided with a clamping groove matched with the spring inclined clamping block 3221, the inner surface of the lower end of the nanofiltration membrane sleeve 323 is sleeved with the outer surface of the sealing head 3223, the bottom of the nanofiltration cartridge 31 is fixedly provided with a telescopic rod 35, the inner surface of the bottom of the nanofiltration cartridge plug 32 is slidably provided with a push plate 34, the output end of the nanofiltration cartridge 31 penetrates through the inner wall of the bottom of the nanofiltration cartridge 31 and is fixedly connected with the lower surface of the push plate 34, the upper surface of the bottom of the nanofiltration cartridge 31 is provided with a sealing gasket matched with the telescopic rod 35 and the first water inlet pipe 312, and the upper surface of the push plate 34 is contacted with the lower end of the sealing head 3223;
In this embodiment, when water flows forward for nanofiltration, the first water inlet pipe 312 inputs water into the nanofiltration cylinder 31, the sealing head 3223 and the pushing plate 34 seal the bottom end inside the nanofiltration cylinder 31 so that water must pass through nanofiltration of the nanofiltration membrane sleeve 323, the telescopic sleeve frame 3222 is in a downward stretching state under the action of gravity, the nanofiltration area of the nanofiltration membrane sleeve 323 is the largest, water flows to the outer layer through nanofiltration purified water of the nanofiltration membrane sleeve 323, particles are trapped by the nanofiltration membrane sleeve 323, purified water enters the upper layer through the water outlet 331 and finally is discharged through the purified water outlet pipe 311, when water flows backward for flushing, the first water inlet pipe 312 receives water and flows into the nanofiltration cylinder 31 through the backwash pipe 321, the telescopic rod 35 works to push the pushing plate 34 to move upwards and retract back and forth so that the sealing head 3223 and the telescopic sleeve frame 3222 stretch under the pushing of the pushing plate 34, the nanofiltration membrane sleeve 323 is driven to generate intermittent and periodic shape to simulate the shock wave effect, the nanofiltration membrane sleeve 323 is matched with water flowing flushing to loosen stubborn sediment on the nanofiltration membrane, after impurity particles are flushed, the impurity particles are discharged through the first water inlet pipe 312, the push plate 34 and the telescopic rod 35, when the nanofiltration membrane sleeve 323 needs to be replaced, the disassembly sealing plate 11 is firstly opened, the backwash water receiving pipe 12 is rotated to separate the backwash water receiving pipe from the backwash pipe 321, the nanofiltration membrane plug 32 is rotated and the clamping joint 322 and the nanofiltration membrane sleeve 323 are pulled out, the nanofiltration membrane sleeve 323 is pulled out directly downwards to separate from the clamping joint 322, the disassembly can be completed, the replaced new nanofiltration membrane sleeve 323 is installed outside the clamping joint 322 again, the upper end of the nanofiltration membrane sleeve 323 is clamped tightly by the spring inclined clamping block 3221, solves the problem that the backwash assembly in the prior art can not completely clean particles attached to the filter element.
Example two
Referring to fig. 1 to 12, in order to realize that the sealing ring 33 can be sealed to avoid secondary pollution during back flushing based on the first embodiment, the embodiment further proposes that a sealing ring is additionally arranged on the outer side of the nanofiltration membrane sleeve 323, a blocking plug matched with the water outlet 331 is fixedly arranged on the upper surface of the sealing ring, through grooves staggered with the water outlet 331 are formed in the inner wall of the sealing ring, and the lower surface of the sealing ring is fixedly connected with the upper surface of the push plate 34 through a supporting rod;
In this embodiment, when nanofiltration is performed on the nanofiltration membrane sleeve 323, the sealing ring is located below the water outlet 331, the through groove formed in the inner wall of the sealing ring is staggered with the water outlet 331, so that the circulation of purified water is not affected, when the nanofiltration membrane sleeve 323 is backwashed, the push plate 34 pushes the sealing head 3223 to move up and down so that the nanofiltration membrane sleeve 323 is deformed in a telescopic manner, the sealing ring is jacked up by the push plate 34, and the blocking plug on the upper surface of the sealing ring seals the water outlet 331, so that the purified water flowing area of the purified water outlet pipe 311 is sealed, the secondary pollution caused by the backwashed water entering the area can be avoided, and the problem that the backwashed water component cannot completely clean particles attached to the filter element in the prior art is solved.
Example III
Referring to fig. 1 to 12, in order to perform precipitation filtration and preliminary adsorption purification on water before water treatment nanofiltration purification on the basis of the second embodiment, the embodiment further proposes that a filtration precipitation cylinder plug 42 is fixedly mounted on the upper inner surface of the filtration precipitation cylinder 41 through threads, a filter screen 44 is arranged in the filtration precipitation cylinder 41, a sewage drain pipe 412 is fixedly mounted on the lower end side wall of the filtration precipitation cylinder 41, a first pump 43 is arranged on the outer side of the filtration precipitation cylinder 41, a water outlet pipe end of the first pump 43 penetrates through the bottom inner wall of the filtration precipitation cylinder 41, a water inlet pipe second 431 is fixedly mounted at the water inlet pipe end of the first pump 43, a purification cylinder plug 52 is fixedly mounted on the upper inner surface of the primary purification cylinder 51 through threads, a pump second 53 is arranged on one side of the purification cylinder plug 52, a water inlet pipe end of the second pump 53 penetrates through the bottom inner wall of the primary purification cylinder 51, a water outlet pipe end 531 of the second pump 53 is fixedly mounted with a water inlet pipe, a water outlet pipe end of the second pump 531 and a water outlet pipe end of the second pump 55 penetrates through the water outlet pipe 55 and a back flushing valve 55 is fixedly mounted at the water outlet pipe end of the water outlet pipe 55, and a back flushing valve 55 is fixedly mounted at the water outlet pipe end of the water outlet pipe 55 is fixedly connected with the water outlet pipe 55 and the back flushing pipe 55 is connected with the back flushing pipe 55 through the water inlet pipe 55 and the back flushing pipe 55;
In this embodiment, the first pump 43 pumps water to be treated into the filtering and precipitating cylinder 41 through the second water inlet pipe 431, the water is filtered and precipitated through the filter screen 44 from bottom to top, the filtered water enters the primary purifying cylinder 51 through the water outlet pipe 411, the precipitate can be discharged through the opening of the sewage outlet pipe 412, the water enters the primary purifying cylinder 51 and flows through the activated carbon particles filled in the activated carbon purifying cylinder 521 to be adsorbed and purified, the water enters the nano-filter cylinder 31 through the second pump 53, the water inlet pipe 531 and the three-way valve pipe 54, one end of the three-way valve pipe 54 connected with the water inlet pipe 531 is closed, the back flushing end is opened, the back flushing pump 55 pumps flushing water out through the first water inlet pipe 312, the push plate 34 and the back flushing water outlet pipe 551, the activated carbon purifying cylinder plug 52 can be pulled out when the activated carbon inside the activated carbon purifying cylinder 521 needs to be replaced, and the back flushing assembly can be installed after the replacement is completed, and the problem that the particles attached to the filter core cannot be completely cleaned in the prior art is further solved.
Example IV
Referring to fig. 1 to 12, in order to avoid the filter screen 44 being blocked, in the third embodiment, an inclined cleaning scraper is additionally provided on the inner side of the filter screen 44, a round rod is fixedly installed in the middle of the cleaning scraper, the upper end of the round rod is rotatably connected with the lower surface of the filtering and precipitating cylinder plug 42, and an impeller is fixedly installed at the lower end of the round rod;
In this embodiment, the first pump 43 pumps water into the lower part of the filter screen 44, and the impeller rotates under the impact of water flow to rotate the round rod, so that the cleaning scraper can clean the inner surface of the filter screen 44, thereby avoiding the filter screen 44 from being blocked, and further solving the problem that the backwash assembly in the prior art cannot completely clean the particles attached to the filter element
Example five
Referring to fig. 13, on the basis of the fourth embodiment, the present embodiment further provides a treatment process of a nanofiltration device for water treatment engineering, which includes the following steps:
step one: the first pump 43 works to pump the water to be treated into the filtering and precipitating cylinder 41 through the second water inlet pipe 431, the water is filtered and precipitated from bottom to top through the filter screen 44, enters the primary purifying cylinder 51 through the water outlet pipe 411, and is purified by the activated carbon in the activated carbon purifying bucket 521;
step two: the water is subjected to nanofiltration purification, the back flushing end of the three-way valve pipe 54 is closed, the second pump 53 works to pump water into the middle of the nanofiltration membrane sleeve 323 in the nanofiltration cartridge 31 through the water pipe 531, the three-way valve pipe 54 and the first water inlet pipe 312, the water is subjected to nanofiltration purification through the outward circulation of the nanofiltration membrane sleeve 323, and the purified water enters the upper part of the nanofiltration cartridge 31 through the water outlet 331 and is discharged through the purified water outlet pipe 311;
Step three: the nanofiltration membrane sleeve 323 is backwashed, one end of the three-way valve pipe 54 connected with the water delivery pipe 531 is closed, the backwash water receiving pipe 12 is connected with the water pipe, water enters the interior of the nanofiltration membrane sleeve 323 through the backwash water receiving pipe 12 and the backwash pipe 321 to flush the nanofiltration membrane sleeve 323, meanwhile, the telescopic rod 35 works to push the push plate 34 to move up and down, so that the sealing head 3223 and the telescopic sleeve frame 3222 at the lower end of the clamping joint 322 telescopically drive the nanofiltration membrane sleeve 323 to enable particles adsorbed on the nanofiltration membrane sleeve 323 to be flushed and fallen, the backwash end is opened, and the backwash pump 55 works to pump flushing water out through the first water inlet pipe 312, the push plate 34 and the backwash water discharge pipe 551;
Step four: the drain pipe 412 is opened to discharge the precipitated water below the filtering and precipitating cylinder 41, the purifying cylinder plug 52 is rotated to pull out the activated carbon purifying bucket 521 to replace the activated carbon inside, then the purifying cylinder plug 52 is reloaded, the filter cylinder plug 32 is also rotated to pull out the clamping connector 322 and the nanofiltration membrane sleeve 323, the nanofiltration membrane sleeve 323 is downwards pulled out to be replaced, and after replacement, the nanofiltration membrane sleeve 323 is reloaded to enable the inclined spring clamping block 3221 to clamp the inner wall of the upper end of the nanofiltration membrane sleeve 323, and the nanofiltration membrane sleeve 323 can be replaced by reloading the filter cylinder plug 32.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a nanofiltration device for water treatment engineering, includes water treatment nanofiltration device shell (1), the outside fixed mounting of water treatment nanofiltration device shell (1) has controlling means (2), the top of water treatment nanofiltration device shell (1) is through bolt fixed mounting has dismantlement shrouding (11), dismantle one side inner wall rotation of shrouding (11) and install back flush water receiving pipe (12), its characterized in that: the water treatment nanofiltration device comprises a water treatment nanofiltration device shell (1), wherein a nanofiltration component (3) is arranged on one side of the inside of the water treatment nanofiltration device shell (1), a water precipitation filtration component (4) and a primary purification component (5) are arranged on the other side of the inside of the water treatment nanofiltration device shell (1), the nanofiltration component (3) comprises a nanofiltration cylinder (31) and a nanofiltration cylinder plug (32), the nanofiltration cylinder (31) is fixedly arranged in the water treatment nanofiltration device shell (1), the nanofiltration cylinder plug (32) is rotatably arranged on the upper inner surface of the nanofiltration cylinder (31), a backwashing pipe (321) matched with a backwashing water receiving pipe (12) is fixedly arranged on the inner wall of the nanofiltration cylinder plug (32), a clamping connector (322) is fixedly arranged at the lower end of the nanofiltration cylinder plug (32), a nanofiltration membrane sleeve (323) is arranged on the outer side of the clamping connector (322), the water precipitation filtration component (4) comprises a filtration precipitation cylinder (41), the primary purification component (5) comprises a primary purification cylinder (51), a drain pipe (411) is fixedly arranged above the side wall of the filtration precipitation cylinder (41), and the drain pipe (411) is fixedly arranged on the other end of the primary side wall (411) of the filtration cylinder (411);
A purified water outlet pipe (311) is fixedly arranged above the side wall of the nanofiltration cylinder (31), one end of the purified water outlet pipe (311) penetrates through the side wall of the water treatment nanofiltration device shell (1), a water inlet pipe I (312) is fixedly arranged on the inner wall of the bottom of the nanofiltration cylinder (31), the lower end of the backwashing pipe (321) penetrates through the inner wall of the middle part of the clamping joint (322), and the inner surface of the upper end of the backwashing pipe (321) is fixedly connected with the outer surface of the lower end of the backwashing water receiving pipe (12) through threads;
The outside surface evenly distributed of joint (322) has oblique fixture block (3221) of spring, the lower extreme fixed mounting of joint (322) has telescopic sleeve frame (3222), the lower extreme fixed mounting of telescopic sleeve frame (3222) has sealing head (3223), the outside at telescopic sleeve frame (3222) is cup jointed to nanofiltration membrane sleeve (323), the upper end inner wall of nanofiltration membrane sleeve (323) is provided with the draw-in groove with oblique fixture block (3221) looks adaptation of spring, the lower extreme internal surface of nanofiltration membrane sleeve (323) cup joints with the surface of sealing head (3223).
2. The nanofiltration device for water treatment works according to claim 1, wherein: the bottom fixed mounting who receives filter cartridge (31) has telescopic link (35), the bottom internal surface slidable mounting who receives filter cartridge stopper (32) has push pedal (34), the output that receives filter cartridge (31) runs through the bottom inner wall that receives filter cartridge (31) and the lower fixed surface of push pedal (34) is connected, the bottom upper surface that receives filter cartridge (31) is provided with the sealing washer with telescopic link (35), inlet tube one (312) looks adaptation, the upper surface of push pedal (34) contacts with the lower extreme of sealing head (3223).
3. The nanofiltration device for water treatment works according to claim 1, wherein: the utility model discloses a water treatment nanofiltration device, including filtering sedimentation section of thick bamboo (41), filtering sedimentation section of thick bamboo stopper (42) are installed through screw thread fixed mounting to the top internal surface of filtering sedimentation section of thick bamboo (41), the inside of filtering sedimentation section of thick bamboo (41) is provided with filter screen (44), the lower extreme lateral wall fixed mounting of filtering sedimentation section of thick bamboo (41) has blow off pipe (412), the outside of filtering sedimentation section of thick bamboo (41) is provided with pump one (43), the bottom inner wall of filtering sedimentation section of thick bamboo (41) is run through to the play water pipe end of pump one (43), the inlet tube end fixed mounting of pump one (43) has inlet tube two (431), the lateral wall of water treatment nanofiltration device shell (1) is run through to inlet tube two (431).
4. The nanofiltration device for water treatment works according to claim 1, wherein: the utility model discloses a purifying device for purifying waste water, including primary purifying barrel (51), active carbon purifying fill (521), pump two (53) are provided with in the top internal surface through screw thread fixed mounting, active carbon purifying fill (521) are fixed with in the lower extreme of purifying barrel stopper (52), one side of purifying barrel stopper (52) is provided with pump two (53), the water inlet pipe end of pump two (53) runs through the bottom inner wall of primary purifying barrel (51), the outlet pipe end fixed with raceway (531) of pump two (53).
5. The nanofiltration device for water treatment works as claimed in claim 4, wherein: a three-way valve pipe (54) is fixedly arranged between the water conveying pipe (531) and the first water inlet pipe (312), a back flushing pump (55) is arranged on the other side of the three-way valve pipe (54), the water inlet pipe end of the back flushing pump (55) is fixedly connected with the front end pipe of the three-way valve pipe (54), a back flushing water drain pipe (551) is fixedly arranged at the water outlet pipe end of the back flushing pump (55), and the back flushing water drain pipe (551) penetrates through the front side wall of the water treatment nanofiltration device shell (1).
6. A nanofiltration device treatment process for water treatment engineering, based on the nanofiltration device for water treatment engineering according to any one of claims 1-5, characterized in that: the method comprises the following steps:
Step one: the water to be treated is pumped into a filtering sedimentation cylinder (41) through a water inlet pipe II (431) by a pump I (43), filtered and sedimented by a filter screen (44) from bottom to top, enters the inside of a primary purification cylinder (51) through a water outlet pipe (411), and is purified by activated carbon in an activated carbon purification bucket (521);
step two: the water is subjected to nanofiltration purification, the back flushing end of the three-way valve pipe (54) is closed, the pump II (53) works to pump water into the middle of the nanofiltration membrane sleeve (323) in the nanofiltration cartridge (31) through the water pipe (531), the three-way valve pipe (54) and the water inlet pipe I (312), the water flows outwards through the nanofiltration membrane sleeve (323) to be subjected to nanofiltration purification, and purified water enters the upper part of the nanofiltration cartridge (31) through the water outlet (331) and is discharged through the purified water outlet pipe (311);
Step three: the nanofiltration membrane sleeve (323) is backwashed, one end, connected with a water delivery pipe (531), of a three-way valve pipe (54) is closed, the backwash water receiving pipe (12) is connected with the water pipe, water enters the interior of the nanofiltration membrane sleeve (323) through the backwash water receiving pipe (12) and the backwash pipe (321) to flush the nanofiltration membrane sleeve (323), meanwhile, a telescopic rod (35) works to push a push plate (34) to move up and down, a sealing head (3223) and a telescopic sleeve frame (3222) at the lower end of the clamping head (322) are enabled to drive the telescopic movement of the nanofiltration membrane sleeve (323) to enable particles adsorbed on the nanofiltration membrane sleeve (323) to be flushed and fall off, the backwash end is opened, and the backwash pump (55) works to pump flushing water out through the first water inlet pipe (312), the push plate (34) and the push plate (351);
step four: blowdown and change nanofiltration membrane sleeve (323), open at first and dismantle shrouding (11), open drain (412) and can discharge the deposit water of filtration precipitation section of thick bamboo (41) below, rotate and pull out purifying cylinder stopper (52) and can take active carbon purifying bucket (521) and change inside and adorn back purifying cylinder stopper (52) again, rotate again and pull out and receive filter cylinder stopper (32) and can take joint (322) and nanofiltration membrane sleeve (323) equally, pull out and receive filter membrane sleeve (323) downwards and can change, install again after the change and receive filter membrane sleeve (323) and make spring oblique fixture block (3221) to receiving the inner wall joint of filter membrane sleeve (323) upper end, install again and receive the change of receiving filter membrane sleeve (323) back.
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| CN120007490A (en) * | 2025-03-25 | 2025-05-16 | 杭州隆升电气有限公司 | A power generation device utilizing the water level difference of sewage drainage pipe |
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| KR101799513B1 (en) * | 2015-07-22 | 2017-11-20 | 주식회사 빈텍코리아 | Filter cartridge and the non-point polution reducing system |
| CN114225703A (en) * | 2021-12-24 | 2022-03-25 | 武汉艾科滤膜技术有限公司 | Double-row ultrafiltration membrane component convenient to disassemble and assemble |
| CN217834834U (en) * | 2022-08-26 | 2022-11-18 | 烟台参福元海洋科技有限公司 | Filter device for improving purity of sea cucumber polysaccharide |
| CN220345489U (en) * | 2023-07-12 | 2024-01-16 | 江苏峰润环保科技有限公司 | A pressure- and impact-resistant porous hollow fiber ultrafiltration membrane |
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