CN118255421A - Wastewater treatment device adopting tubular membrane - Google Patents

Wastewater treatment device adopting tubular membrane Download PDF

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Publication number
CN118255421A
CN118255421A CN202410385315.6A CN202410385315A CN118255421A CN 118255421 A CN118255421 A CN 118255421A CN 202410385315 A CN202410385315 A CN 202410385315A CN 118255421 A CN118255421 A CN 118255421A
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CN
China
Prior art keywords
tubular membrane
guide
groove
tubular
plunger rod
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Granted
Application number
CN202410385315.6A
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Chinese (zh)
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CN118255421B (en
Inventor
张宇恒
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Jiangsu Xinyu Tiancheng Environmental Protection Co ltd
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Jiangsu Xinyu Tiancheng Environmental Protection Co ltd
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Priority to CN202410385315.6A priority Critical patent/CN118255421B/en
Publication of CN118255421A publication Critical patent/CN118255421A/en
Application granted granted Critical
Publication of CN118255421B publication Critical patent/CN118255421B/en
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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14Ultrafiltration; Microfiltration
    • B01D61/145Ultrafiltration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14Ultrafiltration; Microfiltration
    • B01D61/147Microfiltration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14Ultrafiltration; Microfiltration
    • B01D61/18Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14Ultrafiltration; Microfiltration
    • B01D61/20Accessories; Auxiliary operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D63/00Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/06Tubular membrane modules
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D65/00Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02Membrane cleaning or sterilisation ; Membrane regeneration
    • B01D65/04Membrane cleaning or sterilisation ; Membrane regeneration with movable bodies, e.g. foam balls
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention discloses a wastewater treatment device adopting a tubular membrane, which comprises: the inner side of the water filtering cabin is rotationally provided with a movable sleeve seat, the surface of the movable sleeve seat is sleeved with a plurality of tubular membranes, the plunger assembly comprises a movement cabin, a plunger rod and a guide cylinder, one end of the plunger rod is slidably sleeved on the inner side of the tubular membranes, the other end of the plunger rod is provided with a column head, and the surface of the column head is provided with a guide strip and a guide ball. According to the invention, by arranging the novel plunger type tubular membrane structure, the plunger type tubular membrane structure which reciprocates in the tubular membrane is utilized for driving, negative pressure is generated after filtered liquid is discharged, the pressure difference between the inside and the outside of the tubular membrane is increased, more water enters the tubular membrane through the tubular membrane, and therefore, the water filtering quantity and the filtering efficiency are improved.

Description

Wastewater treatment device adopting tubular membrane
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a wastewater treatment device adopting a tubular membrane.
Background
The existing tubular membrane wastewater treatment device is a common membrane separation technology application and is used for treating various types of wastewater, including industrial wastewater, municipal wastewater, agricultural wastewater and the like. These devices are typically composed of a plurality of tubular membranes, typically made of polymeric, ceramic or metallic materials, having microporous or nanoscale pore structures, which are capable of effectively filtering impurities such as solid particles, bacteria, viruses, etc. from the wastewater.
The existing tubular membrane wastewater treatment device consists of a plurality of tubular membranes, the materials and structures of the membranes are determined according to the types of wastewater to be treated and the water quality requirements, the water pressure in a cabin is controlled through the flow difference of water inlet and outlet, the pressure difference between the inside and outside of the tubular membranes is controlled, water molecules are driven to pass through membrane pores, the filtration and separation of wastewater are realized, when high-concentration wastewater is treated, the filtration efficiency is limited, the treatment speed is slower, the requirements of efficient treatment cannot be met, because dirt and impurities easily block the pores of the tubular membranes, the tubular membranes easily accumulate a large amount of dirt and biological membranes after long-time operation, membrane pores are blocked, the passing of water is influenced, the water is required to be cleaned and replaced regularly, the corresponding tubular membrane surface stains are required to be less only at a water inlet due to water flow scouring power, frequent shutdown maintenance is required in the cleaning process, and the production efficiency is low.
In view of the above, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a wastewater treatment apparatus using a tubular membrane, which solves the problems and improves the practical value.
Disclosure of Invention
The present invention aims to solve one of the technical problems existing in the prior art or related technologies.
The technical scheme adopted by the invention is as follows: a wastewater treatment apparatus employing a tubular membrane, comprising: the device comprises a water filtering cabin, a plunger assembly, a main shaft rod and a one-way valve group, wherein a movable sleeve seat is rotatably arranged on the inner side of the water filtering cabin, a plurality of tubular membranes are sleeved on the surface of the movable sleeve seat, the plunger assembly comprises a movement cabin, a plunger rod and a guide cylinder, one end of the plunger rod is slidably sleeved on the inner side of the tubular membranes, a column head is arranged at the other end of the plunger rod, a guide strip and a guide ball are arranged on the surface of the column head, the main shaft rod comprises an end shaft, a guide shaft rod and a spline shaft which are sequentially connected, a linear guide groove for guiding the sliding of the guide strip is arranged on the surface of the guide shaft rod, and a ring groove for guiding the sliding of the guide ball is fixedly arranged on the inner side of the movement cabin and is formed in the inner side of the guide cylinder;
the one-way valve group comprises a plugging seat, a valve disc and a swivel seat fixedly installed at one end of the tubular membrane, a liquid passing hole communicated with the inner side of the tubular membrane is formed in the surface of the swivel seat, a valve groove is formed in the surface of the valve disc, and a purified water outlet which is correspondingly communicated with the valve groove is formed in the surface of the plugging seat.
The present invention may be further configured in a preferred example to: the main shaft rod is positioned on the axis of the water filtering cabin and the movement cabin, and the end shaft penetrates through one end of the movement cabin and is used for being connected with the motor.
The present invention may be further configured in a preferred example to: the linear guide grooves on the surface of the guide shaft rod are arranged in one-to-one correspondence with each plunger rod, spline ribs matched with the movable sleeve seat are arranged on the surface of the spline shaft, and the tubular films are uniformly distributed on the periphery of the spline shaft in the circumferential direction.
The present invention may be further configured in a preferred example to: the guide shaft rod is in a linear strip shape and is arranged in parallel with the plunger rod and the tubular membrane, the fret groove is two parabolic grooves connected end to end, the section of the wire groove is semicircular, and the guide ball is in sliding butt with the inner side of the fret groove.
The present invention may be further configured in a preferred example to: the tubular membrane comprises an internal column core tube and a microporous membrane which is wound on the surface of the column core tube, one end of the plunger rod is provided with a piston ring which is in sliding butt joint with the inner wall of the column core tube, the surface of the tubular membrane is provided with a plurality of water inlet holes, and the column core tube is of an ultrafiltration membrane structure.
The present invention may be further configured in a preferred example to: the water inlet pipe orifice and the water outlet pipe orifice are positioned on the diagonal line of the water filtering cabin, the number of the movable sleeve seats is two, one movable sleeve seat is positioned at the connecting end of the water filtering cabin and the plunger assembly and is in sealing butt joint with the inner side of the water filtering cabin, and the plugging seat and the valve disc are in sealing joint with the other end of the water filtering cabin.
The present invention may be further configured in a preferred example to: the valve groove is in a semicircular groove shape, and when the bottom end of the tubular membrane is communicated with the middle part of the valve groove through the liquid passing hole, the corresponding column head is positioned at one end, close to the water filtering cabin, of the inner side of the return groove; and when the bottom end of the tubular membrane is in a return motion state through the contact and blocking of the liquid passing hole and the surface of the valve disc, the plunger rod is in a return motion state.
The present invention may be further configured in a preferred example to: the surface of valve disc is equipped with the slide dish that laminates mutually with swivel seat bottom surface, the slide dish is the polytetrafluoroethylene material component.
The beneficial effects obtained by the invention are as follows:
1. According to the invention, by arranging the novel plunger type tubular membrane structure, the plunger type tubular membrane structure which reciprocates in the tubular membrane is utilized for driving, negative pressure is generated after filtered liquid is discharged, the pressure difference between the inside and the outside of the tubular membrane is increased, more water enters the tubular membrane through the tubular membrane, and therefore, the water filtering quantity and the filtering efficiency are improved.
2. According to the invention, a rotary plunger driving structure is adopted, the plunger rod is driven to reciprocate in the rotation process of the main shaft rod, and drives the tubular membrane and the plunger rod to synchronously perform planetary rotation, the tubular membrane rotates in the water filtering cabin to change the direction opposite to the flow direction of water, so that the dynamic flushing of the surfaces of the tubular membranes is realized, the surfaces of the membranes can be continuously flushed by using inflow water, the attachment of stains is reduced, the clean state of the membranes is maintained, and the service life is prolonged; the planetary rotation enables the surface of the tubular membrane to continuously change angles in water, which is beneficial to cleaning the surface of the membrane, reduces the accumulation of pollutants and improves the stability and durability.
3. According to the invention, the rotary ring seat enables the tubular membranes to be intermittently connected with the valve grooves to discharge water liquid in the rotation process, and the rotary ring seat is jointed with the surface of the valve disc to seal and match with the return motion of the plunger rod in the rotation process to realize the generation of negative pressure inside the tubular membranes, so that continuous negative pressure suction and plunger pushing work are carried out, and continuous output of water liquid is realized.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 3 is a schematic view illustrating an inner structure of a guide cylinder according to an embodiment of the present invention;
FIG. 4 is a schematic view of a spindle shaft according to an embodiment of the present invention;
Fig. 5 is a schematic view of the structure of the spindle rod and the plunger rod according to one embodiment of the present invention;
FIG. 6 is a schematic view of the plunger rod and tubular membrane structure of one embodiment of the invention;
Fig. 7 is an exploded view of a check valve assembly according to an embodiment of the present invention.
Reference numerals:
100. A water filtering cabin; 110. a water inlet pipe orifice; 120. a water outlet pipe orifice; 130. a tubular membrane; 140. a movable sleeve seat; 131. a column core tube; 132. a microporous membrane;
200. A plunger assembly; 210. a movement cabin; 220. a plunger rod; 230. a guide cylinder; 221. column head; 222. piston rings; 223. a guide bar; 224. a guide ball; 231. a fret groove;
300. a main shaft lever; 310. a guide shaft rod; 320. an end shaft; 330. a spline shaft; 311. a straight guide groove;
400. A one-way valve group; 410. a plugging seat; 420. a valve disc; 430. a swivel base; 411. a purified water outlet; 421. a valve spool; 431. and a liquid passing hole.
Detailed Description
The objects, technical solutions and advantages of the present invention will become more apparent by the following detailed description of the present invention with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and features in the embodiments may be combined with each other.
A wastewater treatment apparatus using a tubular membrane according to some embodiments of the present invention is described below with reference to the accompanying drawings.
Referring to FIGS. 1 to 7, the present invention provides a wastewater treatment apparatus using a tubular membrane, comprising: the water filtering cabin 100, the plunger assembly 200, the main shaft rod 300 and the one-way valve group 400 are arranged on the inner side of the water filtering cabin 100 in a rotating mode, the movable sleeve seat 140 is arranged on the inner side of the water filtering cabin 100 in a rotating mode, a plurality of tubular membranes 130 are sleeved on the surface of the movable sleeve seat 140, the plunger assembly 200 comprises a moving cabin 210, a plunger rod 220 and a guide cylinder 230, one end of the plunger rod 220 is in sliding sleeve connection with the inner side of the tubular membranes 130, a column head 221 is arranged at the other end of the plunger rod 220, a guide strip 223 and a guide ball 224 are arranged on the surface of the column head 221, the main shaft rod 300 comprises an end shaft 320, a guide shaft rod 310 and a spline shaft 330 which are sequentially connected, a linear guide groove 311 for guiding the guide strip 223 to slide is arranged on the surface of the guide shaft rod 310, the guide cylinder 230 is fixedly arranged on the inner side of the moving cabin 210, and a groove 231 for guiding the guide ball 224 to slide is formed on the inner side of the guide cylinder 230;
The check valve set 400 includes a plug seat 410, a valve disc 420, and a swivel seat 430 fixedly installed at one end of the tubular membrane 130, a liquid passing hole 431 communicated with the inner side of the tubular membrane 130 is formed on the surface of the swivel seat 430, a valve slot 421 is formed on the surface of the valve disc 420, and a purified water outlet 411 correspondingly communicated with the valve slot 421 is formed on the surface of the plug seat 410.
In this embodiment, the main shaft 300 is located on the axis of the drainage and movement compartments 100, 210 and the end shaft 320 extends through one end of the movement compartment 210 for connection to a motor.
Specifically, the spindle rod 300 is connected to a motor for rotation driving.
In this embodiment, the linear guide grooves 311 on the surface of the guide shaft rod 310 are arranged in one-to-one correspondence with the respective plunger rods 220, the spline shaft 330 is provided with spline ridges adapted to the movable sleeve 140, and the tubular film 130 is uniformly distributed on the outer circumference of the spline shaft 330 in the circumferential direction.
Specifically, a plurality of tubular membranes 130 are uniformly arranged along the circumferential direction, and different tubular membranes 130 are subjected to surface flushing and dirt removal in the water flow flushing direction during rotation.
In this embodiment, the guide rod 310 is in a linear shape and is arranged parallel to the plunger rod 220 and the tubular membrane 130, the fret groove 231 is two parabolic grooves connected end to end, the section of the wire groove is in a semicircle shape, and the guide ball 224 is in sliding contact with the inner side of the fret groove 231.
Specifically, the plunger rod 220 is reciprocated in the planetary rotation under the common guide of the linear guide groove 311 and the return groove 231, and one end thereof performs the piston movement inside the tubular film 130.
In this embodiment, the tubular membrane 130 includes an inner cylindrical core tube 131 and a microporous membrane 132 wound on the surface of the cylindrical core tube 131, one end of the plunger rod 220 is provided with a piston ring 222 slidably abutted against the inner wall of the cylindrical core tube 131, the surface of the tubular membrane 130 is provided with a plurality of water inlets, and the cylindrical core tube 131 is of an ultrafiltration membrane structure.
Specifically, the tubular membrane 130 is used for filtering the water, and the return movement of the plunger rod 220 is used for realizing the negative pressure introduction of the water.
In this embodiment, the inlet nozzle 110 and the outlet nozzle 120 are located on the diagonal of the filter house 100, the number of movable sockets 140 is two, and one of the movable sockets 140 is located at the connection end of the filter house 100 and the plunger assembly 200 and is in sealing abutment with the inner side of the filter house 100, and the plug socket 410 and the valve disc 420 are in sealing engagement with the other end of the filter house 100.
In this embodiment, the valve groove 421 is in a semicircular groove shape, and when the bottom end of the tubular membrane 130 is connected to the middle of the valve groove 421 through the liquid passing hole 431, the corresponding column head 221 is located at one end, close to the drainage cabin 100, inside the groove 231; when the bottom end of the tubular membrane 130 contacts the surface of the valve disc 420 through the liquid passing hole 431, the plunger rod 220 is in a return motion state.
Further, a slide plate, which is a member of polytetrafluoroethylene, is provided on the surface of the valve plate 420 and is bonded to the bottom surface of the swivel base 430.
Specifically, the rotary ring seat 430 enables the tubular membranes 130 to be intermittently connected with the valve groove 421 to discharge water in the rotation process, and the tubular membranes 130 are in fit sealing fit with the surface of the valve disc 420 in the rotation process to realize the generation of negative pressure in the tubular membranes 130 by the return motion of the plunger rod 220, so that continuous negative pressure suction and plunger pushing work are performed.
The working principle and the using flow of the invention are as follows:
When the tubular membrane wastewater treatment device is used, one end of the end shaft 320 is connected with a motor to drive, and the water inlet pipe orifice 110 and the water outlet pipe orifice 120 are communicated with a pipeline to conduct water liquid introduction and concentrated wastewater discharge; the water is introduced into the water filtering cabin 100, and simultaneously, the main shaft lever 300 rotates to drive the tubular membranes 130 to rotate through the movable sleeve seat 140, and the plunger rod 220 is in meshed contact with the surface of the guide shaft lever 310 through the guide ball 224 under the drive of the guide shaft lever 310, so that the plunger rod 220 and the tubular membranes 130 synchronously rotate in a planetary manner; in the movement of the plunger rod 220, the plunger rod 220 is reciprocally moved in the planetary rotation under the common guide of the linear guide groove 311 and the return groove 231 by the sliding contact of the surface guide ball 224 of the plunger rod 220 with the inner side of the return groove 231, and one end thereof is in the piston movement inside the plunger tube 131;
When the plunger rod 220 rotates through the swivel base 430 in the plunger stroke of the tubular membrane 130, the bottom end of the tubular membrane 130 is jointed with the valve groove 421 through the liquid passing hole 431, the purified water in the tubular membrane 130 is conveyed and extruded through the purified water outlet 411, and in the return movement of the plunger rod 220, the swivel base 430 rotates the bottom surface to be jointed and slid with the surface of the valve disc 420 to realize the blocking of the bottom end of the tubular membrane 130, the inner cavity of the tubular membrane 130 is increased to generate negative pressure, the water is introduced into the microporous membrane 132 through the micropores on the surface to realize the water filtration, the reciprocating driving of the plunger rod 220 is carried out in the rotating process of the spindle rod 300, the tubular membrane 130 and the plunger rod 220 are driven to synchronously rotate in a planetary manner, the tubular membrane 130 rotates in the water filtering cabin 100 to change the opposite direction with the water flow direction, the dynamic flushing of the surfaces of the tubular membranes 130 is realized, the surfaces of the membranes can be continuously flushed by using the inlet water, the attachment of stains is reduced, the clean state of the membranes is maintained, and the service life is prolonged; the planetary rotation enables the surface of the tubular membrane 130 to continuously change angles in the water, thereby being beneficial to cleaning the surface of the membrane, reducing the accumulation of pollutants and improving the stability and durability.
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 spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims (8)

1. A wastewater treatment apparatus employing a tubular membrane, comprising: the novel water filtering device comprises a water filtering cabin (100), a plunger assembly (200), a main shaft rod (300) and a one-way valve group (400), wherein a movable sleeve seat (140) is rotatably arranged on the inner side of the water filtering cabin (100), a plurality of tubular membranes (130) are sleeved on the surface of the movable sleeve seat (140), the plunger assembly (200) comprises a moving cabin (210), a plunger rod (220) and a guide cylinder (230), one end of the plunger rod (220) is slidingly sleeved on the inner side of the tubular membranes (130), a column head (221) is arranged at the other end of the plunger rod (220), a guide strip (223) and a guide ball (224) are arranged on the surface of the column head (221), the main shaft rod (300) comprises an end shaft (320), a guide shaft rod (310) and a spline shaft (330) which are sequentially connected, a linear guide groove (311) for guiding the guide strip (223) to slide is arranged on the surface of the guide shaft rod (310), and a thread groove (231) for guiding the guide ball (224) to slide is formed in the inner side of the moving cabin (210) fixedly arranged on the guide cylinder (230).
The one-way valve group (400) comprises a plugging seat (410), a valve disc (420) and a swivel seat (430) fixedly arranged at one end of the tubular membrane (130), a liquid passing hole (431) communicated with the inner side of the tubular membrane (130) is formed in the surface of the swivel seat (430), a valve groove (421) is formed in the surface of the valve disc (420), and a purified water outlet (411) communicated with the valve groove (421) correspondingly is formed in the surface of the plugging seat (410).
2. A wastewater treatment plant using a tubular membrane according to claim 1, characterized in that the main shaft (300) is located on the axis of the drainage (100) and movement (210) compartments and the end shaft (320) extends through one end of the movement compartment (210) for connection to a motor.
3. The wastewater treatment device adopting the tubular membrane according to claim 1, wherein the linear guide grooves (311) on the surface of the guide shaft rod (310) are arranged in one-to-one correspondence with each plunger rod (220), spline ribs matched with the movable sleeve seat (140) are arranged on the surface of the spline shaft (330), and the tubular membrane (130) is uniformly distributed on the periphery of the spline shaft (330) in the circumferential direction.
4. The wastewater treatment device adopting the tubular membrane according to claim 1, wherein the guide shaft rod (310) is in a linear strip shape and is arranged in parallel with the plunger rod (220) and the tubular membrane (130), the tempering groove (231) is two parabolic grooves connected end to end, the section of the wire groove is in a semicircular shape, and the guide ball (224) is in sliding abutting connection with the inner side of the tempering groove (231).
5. The wastewater treatment device adopting the tubular membrane according to claim 1, wherein the tubular membrane (130) comprises an inner cylindrical core tube (131) and a microporous membrane (132) wound on the surface of the cylindrical core tube (131), one end of the plunger rod (220) is provided with a piston ring (222) in sliding contact with the inner wall of the cylindrical core tube (131), the surface of the tubular membrane (130) is provided with a plurality of water inlet holes, and the cylindrical core tube (131) is of an ultrafiltration membrane structure.
6. The wastewater treatment device adopting the tubular membrane according to claim 1, wherein the water inlet pipe orifice (110) and the water outlet pipe orifice (120) are positioned on the diagonal line of the water filtering cabin (100), the number of the movable sleeve seats (140) is two, one movable sleeve seat (140) is positioned at the connecting end of the water filtering cabin (100) and the plunger assembly (200) and is in sealing abutting connection with the inner side of the water filtering cabin (100), and the plug seat (410) and the valve disc (420) are in sealing joint with the other end of the water filtering cabin (100).
7. The wastewater treatment device adopting the tubular membrane according to claim 1, wherein the valve groove (421) is in a semicircular groove shape, and when the bottom end of the tubular membrane (130) is communicated with the middle part of the valve groove (421) through the liquid passing hole (431), the corresponding column head (221) is positioned at one end, close to the water filtering cabin (100), of the inner side of the return groove (231); when the bottom end of the tubular membrane (130) is contacted with the surface of the valve disc (420) through the liquid through hole (431), the plunger rod (220) is in a return motion state.
8. The apparatus for treating wastewater using a tubular membrane according to claim 1, wherein a slide plate is provided on a surface of the valve plate (420) and is bonded to a bottom surface of the swivel base (430), and the slide plate is a member made of polytetrafluoroethylene.
CN202410385315.6A 2024-04-01 2024-04-01 Wastewater treatment device adopting tubular membrane Active CN118255421B (en)

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CN118719444A (en) * 2024-09-03 2024-10-01 江苏久诺新材科技股份有限公司 Primer rolling device
CN119409284A (en) * 2025-01-06 2025-02-11 合肥科锐特环保工程有限公司 A wastewater treatment device based on tubular membrane

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