CN110217857B

CN110217857B - RO membrane filter

Info

Publication number: CN110217857B
Application number: CN201910576940.8A
Authority: CN
Inventors: 李家宝; 杨柱; 陈浩然
Original assignee: Daqing Xinjisheng Petroleum Equipment Co ltd
Current assignee: Daqing xinjisheng Petroleum Equipment Co., Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2021-12-07
Anticipated expiration: 2039-06-28
Also published as: CN110217857A

Abstract

The invention belongs to the field of water purification, and particularly relates to an RO membrane filter which comprises a cylinder, a rotating shaft, an end cover, a shell and an RO membrane element, wherein the cylinder is arranged on the rotating shaft; the air cylinder is fixed on the end cover through a bracket, and the output end of the air cylinder is connected with the rotating shaft; the rotating shaft is connected with the end cover through thread matching, and the side wall of the rotating shaft is connected with a stirring rod through a screw; the end cover is connected with the shell through a bolt, and a water inlet is formed in the end cover; the RO membrane element is fixed on the inner wall of the shell through an annular sealing ring; the casing lower extreme is equipped with pure mouth of a river and waste water mouth, and the during operation passes through the cylinder, and the cooperation between end cover and the axis of rotation drives the axis of rotation and rotates to drive the epaxial stirring stick of axis of rotation and stir the raw water, filter with higher speed, raise the efficiency.

Description

RO membrane filter

Technical Field

The invention belongs to the field of water purification, and particularly relates to an RO membrane filter.

Background

RO is the abbreviation of English Reverse Osmosis, Chinese means Reverse Osmosis, the general water flow mode is from low concentration to high concentration, water flows from high concentration to low concentration after being pressurized, so-called Reverse Osmosis principle, because the pore diameter of RO membrane is 0.0001 micrometer of one hundred thousand of hair, bacteria and virus are 5000 times of it, therefore, only water molecule and partial mineral ion can pass through the ion without beneficial damage orientation, other impurities and heavy metal are all discharged from waste water pipe. All seawater desalination processes and spaceman wastewater recovery treatment are adopted, so the RO membrane is also called as an external high-tech 'artificial kidney'. The top-grade RO membrane is adopted for polymer filtration in the fields of medicine, military and civilian use at home and abroad, reverse osmosis is a new membrane separation technology developed in 60 years, and is a process of separating a solvent and a solute in a solution under pressure by virtue of a reverse osmosis membrane, and the reverse osmosis technology is a membrane separation and filtration technology using osmotic pressure difference as power, is derived from the research of aerospace science and technology in the sixties of the twentieth century in the United states, is gradually converted into civilian use, and is widely applied to the fields of scientific research, medicine, food, beverage, seawater desalination and the like.

Common RO membrane filter all realizes the raw water through the RO membrane element to filter through increase water pressure simply on the market at present, and filter speed is slower, and RO membrane filter on the market at present can be after using a period at RO membrane surface accumulation one deck impurity, need carry out artifical the dismantlement and wash moreover, causes the loss of great manpower and materials.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems that the filtration efficiency is low in the raw water filtration process and the surface of an RO membrane element needs to be manually disassembled and cleaned, the invention provides the RO membrane filter.

The technical scheme adopted by the invention for solving the technical problems is as follows: the RO membrane filter comprises a cylinder, a rotating shaft, an end cover, a shell and an RO membrane element; the air cylinder is fixed on the end cover through a support, and the output end of the air cylinder is connected with the rotating shaft; the rotating shaft is connected with the end cover through thread matching, and the side wall of the rotating shaft is connected with a stirring rod through a screw; the end cover is connected with the shell through a bolt, and a water inlet is formed in the end cover; the RO membrane element is embedded in the inner wall of the shell; the casing lower extreme is equipped with pure mouth of a river and waste water mouth, the cooperation through cylinder and axis of rotation drives stirring stick and stirs the raw water, filter with higher speed, in operation, the raw water flows in from the water inlet, the cylinder produces the extrusion effect to a axle, a axle can be along screw thread rotary motion downwards when receiving decurrent extrusion force, the rotation of a axle has driven the rotation of gasbag and No. two axles, the rotation of No. two axles has driven No. two epaxial stirring sticks rotatoryly, thereby reached and carried out the effect of stirring to the raw water of flowing in, the speed that the raw water passes through the RO film element has been accelerated, the work efficiency is improved, and energy consumption is reduced.

Preferably, the rotating shaft is sleeved with a fixed shaft and consists of a first shaft, an air bag and a second shaft; one end of the first shaft is connected with the output end of the air cylinder, and the other end of the first shaft is connected with the air bag; the air bag is connected with a second shaft end; the bottom of the second shaft end is hinged with a brush plate, and a cleaning brush is arranged on the brush plate; the upper end of the fixed shaft is connected with the end cover, and the fixed shaft is sleeved on the outer wall of the first shaft part and is hinged with a folding plate; folding board end is articulated with No. two outer walls of the axle, the cooperation through cylinder and axis of rotation drives the rotatory clearance RO film element terminal surface of cleaning brush, during operation when continuous downward rotation of a axle, drive No. two axial and move down, when No. two axle low ends stretch out the fixed axle, the brush board can be opened because of the action of gravity, the cleaning brush on the brush board can the tiling on the terminal surface of RO film element, can make the cleaning brush clear the brush to RO film element terminal surface at the rotatory in-process of No. two axles, realized need not to dismantle and self-cleaning.

Preferably, a pulley is arranged between the outer side of the second shaft and the inner side of the fixed shaft, the movement of the second shaft reduces friction force in movement through the pulley, when the first shaft rotates downwards in work, the second shaft is driven to move downwards, the pulley between the outer side of the second shaft and the inner wall of the fixed shaft can play a lubricating role, the second shaft is helped to stretch out and retract, friction resistance between the outer side of the second shaft and the inner wall of the fixed shaft is reduced, and workpiece loss is reduced.

Preferably, the shape of cleaning brush is the arc, the area of contact of increase cleaning brush and RO membrane element terminal surface, strengthen clean effect, in operation, when the fixed axle is stretched out to the bottom to the incessant decurrent rotation of No. two axles, the brush board can be opened because of gravity reason, the cleaning brush can lay flatly on the terminal surface of RO membrane element, the area of contact of curved cleaning brush and RO membrane element terminal surface is bigger, make the scope at rotatory clean in-process wider, clean effect is more obvious, and when the cleaning brush withdraws, curved appearance can make and wash each other between the cleaning brush, increase clean degree.

Preferably, all opened the fumarole in the cleaning brush, and the fumarole passes through the hose and is connected with the gasbag, the change through the gasbag size drives the flow of fumarole department air current, thereby strengthen clean effect, in operation, when the incessantly downward rotation of No. two axles is until the bottom stretches out the fixed axle, the brush board is opened because of gravity reason, when the cleaning brush is spread and is rotated the brush on the terminal surface of RO film component, because an axial moves down soon, the gasbag in the middle of a axle and No. two axles has been extruded, gas in the gasbag can be extruded through the fumarole in the cleaning brush, can further wash RO film component terminal surface, the clean effect has been increased, and the cleaning brush can be owing to being let in gas and produce the vibration, increase clean degree.

Preferably, the inner wall of the shell is provided with a slope, namely, the radius is smaller downwards, the RO membrane elements are limited, downward deviation of the RO membrane elements in the filtering process is avoided, when raw water enters the RO membrane elements from the upper end in the working process, certain impact action can be generated on the RO membrane elements, the RO membrane elements can slide downwards, the inner wall of the shell with the slope can play a limiting role on the RO membrane elements, downward movement of the RO membrane elements is avoided, raw water at the contact part of the RO membrane elements and the inner wall of the shell can be repeatedly filtered between the RO membrane elements and the inner wall of the shell due to the extrusion action, the filtering effect is increased, and the raw water is prevented from flowing out from the side wall.

The invention has the following beneficial effects:

1. according to the RO membrane filter, the stirring rod is arranged on the side wall of the rotating shaft, raw water to be filtered is stirred, the raw water is stirred at a higher speed, the raw water filtering efficiency is improved, and the energy consumption in the filtering process is reduced.

2. According to the RO membrane filter, the cleaning brush is arranged on the end face of the rotating shaft, so that the cleaning effect of the end face of the RO membrane element can be performed while raw water is filtered by the RO membrane element in the filtering process, the inconvenience that the RO membrane filter needs to be manually disassembled and cleaned after being used for a long time is avoided, the working efficiency is improved, and manpower and material resources are reduced.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

in the figure: the device comprises a cylinder 1, a rotating shaft 2, a stirring rod 21, a fixed shaft 22, a pulley 221, a first shaft 23, an air bag 24, a second shaft 25, a hose 251, a folding plate 26, a cleaning brush 27, an air injection hole 271, a brush plate 28, an end cover 3, a water inlet 31, a shell 4, a pure water port 41, a waste water port 42, an RO membrane element 5 and a support 6.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 4, an RO membrane filter according to the present invention includes a cylinder 1, a rotation shaft 2, an end cap 3, a housing 4, and an RO membrane element 5; the air cylinder 1 is fixed on the end cover 3 through a support 6, and the output end of the air cylinder 1 is connected with the rotating shaft 2; the rotating shaft 2 is connected with the end cover 3 through thread fit, and the side wall of the rotating shaft 2 is connected with a stirring rod 21 through a screw; the end cover 3 is connected with the shell 4 through a bolt, and a water inlet 31 is formed in the end cover 3; the RO membrane element 5 is embedded in the inner wall of the shell 4; the lower extreme of casing 4 is equipped with pure mouth of a river 41 and waste water mouth 42, the cooperation through cylinder 1 and axis of rotation 2 drives stirring rod 21 and stirs the raw water, filtration with higher speed, in operation, the raw water flows in from water inlet 31, cylinder 1 produces the extrusion effect to axle 23, axle 23 can be along screw thread rotary motion downwards when receiving decurrent extrusion force, the rotation of axle 23 has driven the rotation of gasbag 24 and No. two axles 25, the rotation of No. two axles 25 has driven the stirring rod 21 rotation on No. two axles 25, thereby reached and carried out the effect of stirring to the raw water of flowing in, the speed that the raw water passes through RO membrane element RO 5 has been accelerated, and the work efficiency is improved, and energy consumption is reduced.

As an embodiment of the invention, a fixed shaft 22 is sleeved outside the rotating shaft 2, and the rotating shaft 2 consists of a first shaft 23, an air bag 24 and a second shaft 25; one end of the first shaft 23 is connected with the output end of the cylinder 1, and the other end of the first shaft is connected with the air bag 24; the air bag 24 is connected with the end of a second shaft 25; the bottom of the end of the second shaft 25 is hinged with a brush plate 28, and a cleaning brush 27 is arranged on the brush plate 28; the upper end of the fixing shaft 22 is connected with the end cover 3, and the fixing shaft 22 is sleeved on the outer wall of the first shaft 23 and is hinged with a folding plate 26; the 26 ends of the folding plate are hinged to the outer wall of the shaft, the cleaning brush 27 is driven to rotate to clean the end face of the RO membrane element 5 through the cooperation of the cylinder 1 and the rotating shaft 2, in operation, when the shaft 23 continuously rotates downwards, the shaft 25 is driven to move downwards, when the lower end of the shaft 25 extends out of the fixing shaft 22, the brush plate 28 can be opened under the action of gravity, the cleaning brush 27 on the brush plate 28 can be tiled on the end face of the RO membrane element 5, and the cleaning brush 27 can be used for cleaning the end face of the RO membrane element 5 in the rotating process of the shaft 25.

As an embodiment of the invention, a pulley 221 is arranged between the outer side of the second shaft 25 and the inner side of the fixed shaft 22, the movement of the second shaft 25 reduces the friction force in the movement through the pulley 221, when the first shaft 23 rotates downwards during operation, the second shaft 25 is driven to move downwards, at this time, the pulley 221 between the outer side of the second shaft 25 and the inner wall of the fixed shaft 22 can play a role in lubrication, the extending and retracting movement of the second shaft 25 is assisted, the friction resistance between the outer side of the second shaft 25 and the inner wall of the fixed shaft 22 is reduced, and the workpiece loss is reduced.

As an embodiment of the present invention, the cleaning brush 27 is arc-shaped, so as to increase the contact area between the cleaning brush 27 and the end surface of the RO membrane element 5, and enhance the cleaning effect, when the second shaft 25 rotates continuously until the bottom end extends out of the fixing shaft 22, the brush plate 28 will open due to gravity, the cleaning brush 27 will be flatly laid on the end surface of the RO membrane element 5, the contact area between the arc-shaped cleaning brush 27 and the end surface of the RO membrane element 5 is larger, so that the range during the rotating cleaning process is wider, the cleaning effect is more obvious, and when the cleaning brush 27 is retracted, the arc-shaped appearance will enable the cleaning brushes 27 to be cleaned with each other, and the cleaning degree is increased.

In one embodiment of the present invention, the cleaning brushes 27 are all provided with air injection holes 271, the air injection holes 271 are connected with the air bag 24 through the hose 251, and the change of the size of the air bag 24 drives the flow of the air flow at the air injection holes 271, so as to enhance the cleaning effect.

In an embodiment of the present invention, the inner wall of the housing 4 is sloped, that is, the radius is smaller as going downward, so that the RO membrane elements 5 are limited, and the RO membrane elements 5 are prevented from shifting downward during the filtration process, when raw water enters the RO membrane elements 5 from the upper end during operation, a certain impact is applied to the RO membrane elements 5, so that the RO membrane elements 5 can slide downward, so that the sloped inner wall of the housing 4 can limit the RO membrane elements 5, prevent the RO membrane elements 5 from moving downward, and the raw water in the contact part between the RO membrane elements 5 and the inner wall of the housing 4 can be repeatedly filtered by the squeezing action between the RO membrane elements 5 and the inner wall of the housing 4, thereby increasing the filtration effect and preventing the raw water from flowing out from the side wall.

When the device works, raw water flows in from the water inlet 31, the cylinder 1 extrudes the first shaft 23, the first shaft 23 rotates downwards along the screw threads when being subjected to downward extrusion force, the rotation of the first shaft 23 drives the air bag 24 and the second shaft 25 to rotate, the rotation of the second shaft 25 drives the stirring rod 21 on the second shaft 25 to rotate, so that the effect of stirring the inflowing raw water is achieved, the speed of the raw water passing through the RO membrane element 5 is accelerated, the first shaft 23 continuously rotates downwards, the second shaft 25 is driven to move downwards, when the lower end of the second shaft 25 extends out of the fixed shaft 22, the brush plate 28 is opened under the action of gravity, the cleaning brush 27 on the brush plate 28 is flatly laid on the end face of the RO membrane element 5, the cleaning brush 27 can clean the end face of the RO membrane element 5 in the rotating process of the second shaft 25, in the extending process of the second shaft 25, the outer side of the second shaft 25 and the pulley 221 in the middle of the inner wall of the fixed shaft 22 can play a role of lubricating, and the extension and retraction movement of the second shaft 25 is assisted, the friction resistance is reduced, when the cleaning brush 27 is tiled on the end face of the RO membrane element 5, the contact area between the arc-shaped cleaning brush 27 and the end face of the RO membrane element 5 is larger, the range in the rotary cleaning process is wider, the cleaning effect is more obvious, in the downward rotary moving process of the first shaft 23, the air bag 24 between the first shaft 23 and the second shaft 25 is extruded, the gas in the air bag 24 is extruded out through the air injection holes 271 in the cleaning brush 27, the end face of the RO membrane element 5 is further cleaned, the cleaning effect is increased, when raw water enters the RO membrane element 5 from the upper end, a certain impact effect is generated on the RO membrane element 5, so that the RO membrane element 5 can slide downward, the inner wall of the shell 4 with the inclination can play a role in limiting on the RO membrane element 5, and the downward movement of the RO membrane element 5 is avoided, and the raw water at the contact part of the RO membrane element 5 and the inner wall of the shell 4 can be repeatedly filtered due to the extrusion action, thereby increasing the filtering effect and avoiding the raw water from flowing out from the side wall.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An RO membrane filter characterized by: comprises a cylinder (1), a rotating shaft (2), an end cover (3), a shell (4) and an RO membrane element (5); the air cylinder (1) is fixed on the end cover (3) through a support (6), and the output end of the air cylinder (1) is connected with the rotating shaft (2); the rotating shaft (2) is connected with the end cover (3) through thread fit, and the side wall of the rotating shaft (2) is connected with a stirring rod (21) through a screw; the end cover (3) is connected with the shell (4) through a bolt, and a water inlet (31) is formed in the end cover (3); the RO membrane element (5) is embedded in the inner wall of the shell (4); the lower end of the shell (4) is provided with a pure water port (41) and a waste water port (42), and the stirring rod (21) is driven to stir raw water by the matching of the cylinder (1) and the rotating shaft (2) so as to accelerate filtration;

the rotating shaft (2) is sleeved with a fixed shaft (22), and the rotating shaft (2) consists of a first shaft (23), an air bag (24) and a second shaft (25); one end of the first shaft (23) is connected with the output end of the cylinder (1), and the other end of the first shaft is connected with the air bag (24); the air bag (24) is connected with the end of the second shaft (25); the bottom of the end of the second shaft (25) is hinged with a brush plate (28), and a cleaning brush (27) is arranged on the brush plate (28); the upper end of the fixed shaft (22) is connected with the end cover (3), and the outer wall of the part, sleeved with the first shaft (23), of the fixed shaft (22) is hinged with a folding plate (26); the end of the folding plate (26) is hinged with the outer wall of the second shaft (25), and the cleaning brush (27) is driven to rotate to clean the end face of the RO membrane element (5) through the matching of the cylinder (1) and the rotating shaft (2);

the inner wall of the shell (4) is provided with an inclination, the radius is smaller when the inner wall is downward, the RO membrane element (5) is limited, and downward deviation of the RO membrane element (5) in the filtering process is avoided;

the cleaning brush (27) is arc-shaped, so that the contact area between the cleaning brush (27) and the end face of the RO membrane element (5) is increased, and the cleaning effect is enhanced;

all open fumarole (271) in cleaning brush (27), and fumarole (271) are connected with gasbag (24) through hose (251), drive the flow of air current in fumarole (271) department through the change of gasbag (24) size to reinforcing cleaning performance.

2. A RO membrane filter according to claim 1, wherein: a pulley (221) is arranged between the outer side of the second shaft (25) and the inner side of the fixed shaft (22), and the friction force in the movement process of the second shaft (25) is reduced through the pulley (221).