CN110465199B - Water-saving nanofiltration membrane element - Google Patents
Water-saving nanofiltration membrane element Download PDFInfo
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- CN110465199B CN110465199B CN201910774034.9A CN201910774034A CN110465199B CN 110465199 B CN110465199 B CN 110465199B CN 201910774034 A CN201910774034 A CN 201910774034A CN 110465199 B CN110465199 B CN 110465199B
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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
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
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- 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
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Abstract
The invention discloses a water-saving nanofiltration membrane element, which comprises a membrane element body, wherein the membrane element body consists of a central tube, a through hole, a winding outer sleeve, a first water inlet air flow grid, a membrane, a permeation collection grid and a second water inlet air flow grid, the central tube is provided with the through hole, the central tube is externally provided with the second water inlet air flow grid, the two membranes are arranged outside the water inlet air flow grid, the membranes are staggered and folded into two pieces, the permeation collection grid is arranged between the two folded membranes, the membrane is provided with the first water inlet air flow grid, and the winding outer sleeve is arranged outside the first water inlet air flow grid; according to the invention, by adjusting the distance between the two movable plates and matching with the guide wheels, elements with different widths can be guided conveniently, so that the rolling effect is better; through rotatory adjusting bolt, adjust the height of compression roller for the spring is at natural state, and the compression roller supports with the component, makes compacter, not loose of component rolling.
Description
Technical Field
The invention relates to the technical field of nanofiltration membrane elements, in particular to a water-saving nanofiltration membrane element.
Background
In recent years, the membrane separation process has been widely used for seawater purification, sewage treatment, pure water production, and the like as a novel high separation, concentration, purification, and purification technique. The membrane separation technology is a separation method for separating, purifying and concentrating a mixture under the action of external force by utilizing a specially manufactured membrane with selective permeability, and the membrane has the characteristics of allowing some substances to pass through and not allowing some substances to pass through. Membrane separation techniques are generally classified into four major categories, Microfiltration (MF), Ultrafiltration (UF), Nanofiltration (NF), and Reverse Osmosis (RO). Nanofiltration membranes, which are functional semipermeable membranes that allow the permeation of solvent molecules, some low molecular weight solutes, or low valent ions, are so called because of their ability to trap substances of about nanometers in size, have pore diameters of 1nm or more, typically 1 to 2nm, and are widely used in various fields such as the removal of organic substances and chromaticities of surface water, the removal of hardness of groundwater, the partial removal of soluble salts, the concentration of fruit juices, and the separation of useful substances in pharmaceuticals.
In the existing nanofiltration membrane element, because the latticed plastic net and the membrane are directly wound on the plastic pipe, the purified water is slowly transmitted and collected in the using process, the utilization rate of the membrane is low, unnecessary resource waste is caused, the flow rate is low, and the water production efficiency is low; and when the nanofiltration membrane element is manufactured, the winding mechanism is required to wind the nanofiltration membrane element, but the existing winding mechanism is not convenient to wind two groups of elements simultaneously, and is not convenient to adjust the height of the compression roller, so that the elements are wound more compactly and are not loose, and the winding mechanism is not suitable for elements with different widths.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a water-saving nanofiltration membrane element,
according to the invention, by adjusting the distance between the two movable plates and matching with the guide wheels, elements with different widths can be guided conveniently, so that the rolling effect is better; the height of the compression roller is adjusted by rotating the adjusting bolt, so that the compression roller is abutted against the element when the spring is in a natural state, and the element is wound more compactly and is not loose;
the invention has the advantages that the membrane is staggered and folded into two pieces, and the infiltration collecting grid is arranged between the folded membranes, so that the flow rate is increased, and the water production efficiency is improved.
The purpose of the invention can be realized by the following technical scheme:
a water-saving nanofiltration membrane element comprises a membrane element body, wherein the membrane element body consists of a central tube, a through hole, a winding outer sleeve, a first water inlet air flow grid, a membrane, a penetration collection grid and a second water inlet air flow grid;
the nanofiltration membrane element is prepared by the following steps:
firstly, cutting a selected diaphragm through a diaphragm cutting machine;
step two, opening an operation lamp before the operation of laminating the membranes, flatly paving the membranes on a table top to check whether light transmission or black spots exist, taking a silk screen to be lightly placed at the surface position of the membranes, carrying out dislocation and folding on the membranes into two pieces at a position 10-15mm away from the middle point end of the silk screen and the membranes, then placing a permeation collection grid between the folded membranes, and sealing the folded membranes with three sides of a first inlet air flow grid through resin sealant;
step three, winding the two groups of sealed membranes through a winding mechanism; firstly, a servo motor is driven to drive a driving wheel to rotate, the driving wheel drives a driven wheel to rotate through a belt, the driven wheel drives a rotating rod to rotate, and the rotating rod is matched with a roller wheel for use to guide and level a sealed diaphragm; then driving a driving motor, wherein the driving motor drives a first gear to rotate, the first gear drives a second gear to rotate through a chain, the second gear drives a second winding roller to rotate, the second winding roller drives a third gear to rotate, the third gear drives a fourth gear to rotate through a chain, and further drives the first winding roller to rotate, and the first winding roller and the second winding roller are wound to obtain a pretreated nanofiltration membrane element;
and step four, placing the pretreated nanofiltration membrane element in an automatic cutting machine, and cutting to obtain the nanofiltration membrane element.
As a further scheme of the invention: the winding mechanism comprises a winding seat and a fixed seat, a winding frame is fixedly mounted at the center of the top of the winding seat, a first winding roller and a second winding roller are symmetrically mounted at the lower end of the winding frame, a second gear and a third gear are sleeved on the second winding roller, the second gear is connected with the first gear through a chain, the first gear is sleeved on an output shaft of a driving motor, and the driving motor is mounted on the winding seat; the third gear is connected with a fourth gear sleeved on the first winding roller through a chain, and guide rollers are arranged on the outer sides of the first winding roller and the second winding roller;
the two sides of the winding seat are respectively provided with a fixed seat, one side of the fixed seat is fixedly provided with a servo motor, an output shaft of the servo motor is sleeved with a driving wheel, the driving wheel is connected with a driven wheel through a belt, the driven wheel is sleeved at one end of a rotating rod, the other end of the rotating rod is in transmission connection with the fixed seat, the fixed seat is symmetrically provided with two mounting plates, the two mounting plates are connected through a rotating shaft horizontally arranged, one end of the rotating shaft is fixedly provided with a connecting block, one side of the connecting block is provided with a rocker which is vertically arranged with the rotating shaft, the rotating shaft is sleeved with two first bevel gears, the first bevel gears are all in meshing connection with a second bevel gear, the second bevel gear is vertically arranged with the first bevel gear, the second bevel gear is fixed on a vertically arranged second lead screw, and one end of the second lead screw, which is far, the second slider is connected with the fixing base in a sliding mode, the second slider is connected with two fixing rods in parallel in a rotating mode, and rollers are evenly arranged on the fixing rods.
As a further scheme of the invention: the compression rollers are arranged right above the first winding roller and the second winding roller and rotatably mounted on the bearing sleeve, two sides of the bearing sleeve are connected with the winding frame in a sliding mode, the top of the bearing sleeve is connected with the fixed plate through a spring, an adjusting bolt used for adjusting the height of the bearing sleeve is arranged at the top of the fixed plate, and the adjusting bolt is locked through a nut; and guide rods are arranged on the outer sides of the two guide rollers.
As a further scheme of the invention: the both sides of rolling frame all are provided with the alignment jig, one side of alignment jig is provided with the deflector, be provided with first lead screw and equalizer bar between the alignment jig, first lead screw and equalizer bar parallel arrangement, alignment jig and hand wheel fixed connection are stretched out to the one end of first lead screw, equal swing joint has first slider on first lead screw and the equalizer bar, fixed mounting has the fly leaf on the first slider, symmetrical rotation is connected with two leading wheels on the fly leaf.
As a further scheme of the invention: the two guide rods are arranged in parallel, and the two guide rollers are arranged in parallel.
As a further scheme of the invention: the first winding roller and the second winding roller are arranged in parallel, and the two compression rollers are arranged in parallel.
As a further scheme of the invention: the winding mechanism comprises the following working steps: firstly, a rocker is rotated, a rotating shaft is driven to rotate through a connecting block, the rotating shaft drives two first bevel gears to rotate, the first bevel gears drive second bevel gears to rotate so as to drive a second screw rod to rotate, the second screw rod drives a second sliding block to ascend and descend, the height of the second sliding block is adjusted, and the distance between a roller and the rotating rod is adjusted;
then, a servo motor is driven to drive a driving wheel to rotate, the driving wheel drives a driven wheel to rotate through a belt, the driven wheel drives a rotating rod to rotate, and the rotating rod is matched with a roller wheel for use to guide and level the sealed diaphragm;
then a driving motor is driven, the driving motor drives a first gear to rotate, the first gear drives a second gear to rotate through a chain, the second gear drives a second winding roller to rotate, the second winding roller drives a third gear to rotate, the third gear drives a fourth gear to rotate through the chain, the first winding roller is further driven to rotate, and the first winding roller and the second winding roller are wound;
in the winding process, the bearing sleeve is driven to slide up and down by rotating the adjusting bolt, and then the compression roller is driven to lift, so that the distances between the compression roller and the first winding roller and between the compression roller and the second winding roller are adjusted.
The invention has the beneficial effects that:
the invention firstly rotates a rocker, drives a rotating shaft to rotate through a connecting block, the rotating shaft drives two first bevel gears to rotate, the first bevel gears drive a second bevel gear to rotate, and further drive a second screw rod to rotate, the second screw rod drives a second sliding block to ascend and descend, the height of the second sliding block is adjusted, and further the distance between a roller and the rotating rod is adjusted; the membrane elements with different thicknesses can be conveniently processed, and the practicability is high; then, a servo motor is driven to drive a driving wheel to rotate, the driving wheel drives a driven wheel to rotate through a belt, the driven wheel drives a rotating rod to rotate, the rotating rod is matched with a roller wheel for use, and the sealed diaphragm is guided and flattened, so that the diaphragm is smoother and convenient to subsequently wrap; the first screw rod is driven to rotate by rotating the hand wheel, the left and right sections of opposite threads are arranged on the first screw rod, the first screw rod drives the two first sliding blocks to move in opposite directions or in the opposite directions, so that the distance between the two movable plates is adjusted, and meanwhile, the guide wheels are matched, so that elements with different widths can be guided conveniently, and the winding effect is better; then a driving motor is started, the driving motor drives a first gear to rotate, the first gear drives a second gear to rotate through a chain, the second gear drives a second winding roller to rotate, the second winding roller drives a third gear to rotate, the third gear drives a fourth gear to rotate through the chain, the first winding roller is further driven to rotate, and the first winding roller and the second winding roller are wound; through the arrangement of the invention, two groups of elements can be wound simultaneously, the working efficiency is high, and the practicability is strong.
In the winding process, the adjusting bolt is rotated to drive the bearing sleeve to ascend and descend, so that the adjusting compression roller is abutted against the diaphragm element when the spring is in a natural state, the diaphragm element is compressed to a flat state through a gap between the compression roller and the winding roller and is wound on the winding roller, the thickness of the diaphragm element on the winding roller is gradually increased along with the winding work, but the compression roller is always abutted against the winding roller, so that the pressing force can be continuously applied to the diaphragm element, the diaphragm element is always compressed to the flat state and then is wound on the winding roller, and the diaphragm element is tightly wound and is not loose when the diaphragm element is wound; in the winding process, the thickness of the membrane element on the winding roller is gradually increased, the compressed degree of the spring is gradually increased, the pressing force exerted on the membrane element by the pressing roller is gradually increased, and in order to prevent the membrane element from being damaged by the pressing roller, the adjusting bolt can be rotated to drive the pressing roller to properly move upwards, so that the compressed degree of the membrane element by the spring is reduced, and the pressing force exerted on the membrane element by the pressing roller is reduced.
The invention has the advantages that the membrane is staggered and folded into two pieces, and the infiltration collecting grid is arranged between the folded membranes, so that the flow rate is increased, and the water production efficiency is improved.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of a nanofiltration membrane element of the present invention;
FIG. 2 is a schematic view of the overall structure of the winding mechanism of the present invention;
FIG. 3 is a schematic front view of the winding seat of the present invention;
FIG. 4 is a schematic side view of the rolling seat of the present invention;
FIG. 5 is a schematic side view of the winding frame according to the present invention;
FIG. 6 is a schematic view of the overall structure of the adjusting bracket of the present invention;
FIG. 7 is a schematic view of the overall structure of the fixing base of the present invention;
FIG. 8 is a side view of the fixing base of the present invention.
In the figure: 100. a membrane element body; 101. a central tube; 111. a through hole; 201. winding the outer sleeve; 202. the water inlet air flow grid I; 203. a membrane; 204. permeating the collection grid; 205. a water inlet air flow grid II; 1. a winding seat; 2. a fixed seat; 11. a drive motor; 12. a first gear; 13. a winding frame; 131. a first wind-up roll; 132. a second wind-up roll; 133. a second gear; 134. a third gear; 135. a guide roller; 136. a guide bar; 137. a compression roller; 138. a fourth gear; 139. a bearing housing; 1310. adjusting the bolt; 1311. a fixing plate; 1312. a spring; 14. an adjusting bracket; 141. a guide plate; 142. a guide wheel; 143. a movable plate; 144. a hand wheel; 145. a first slider; 146. a first lead screw; 147. a balancing pole; 21. a servo motor; 22. a driving wheel; 23. a belt; 24. a driven wheel; 25. a rocker; 26. connecting blocks; 27. a first bevel gear; 28. a rotating shaft; 29. a second bevel gear; 210. rotating the rod; 211. mounting a plate; 212. a roller; 213. fixing the rod; 214. a second lead screw; 215. and a second slider.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, a water-saving nanofiltration membrane element comprises a membrane element body 100, wherein the membrane element body 100 is composed of a central tube 101, a through hole 111, a winding outer sleeve 201, a first inlet air flow grid 202, membranes 203, a permeation collection grid 204 and a second inlet air flow grid 205, the through hole 111 is formed in the central tube 101, the second inlet air flow grid 205 is arranged outside the central tube 101, the membranes 203 are arranged outside the second inlet air flow grid 205, the membranes 203 are staggered and folded into two pieces, the permeation collection grid 204 is arranged between the folded membranes 203, the first inlet air flow grid 202 is arranged on the membranes 203, and the winding outer sleeve 201 is arranged outside the first inlet air flow grid 202;
the nanofiltration membrane element is prepared by the following steps:
firstly, cutting a selected diaphragm 203 through a diaphragm cutting machine;
step two, before the operation of laminating the membranes, an operation lamp is turned on, the membranes 203 are flatly laid on a table top to check whether light transmission or black spots exist, a silk screen is lightly placed at the surface of the membranes 203, the membranes are staggered and folded into two pieces at a position 10-15mm away from the middle point end of the silk screen and the membranes 203, then a permeation collection grid 204 is placed between the folded membranes 203, and the folded membranes 203 are sealed with the three sides of the inlet air flow grid I202 through resin sealant;
step three, winding the two groups of sealed diaphragms 203 through a winding mechanism; firstly, a servo motor 21 is driven to drive a driving wheel 22 to rotate, the driving wheel 22 drives a driven wheel 24 to rotate through a belt 23, the driven wheel 24 drives a rotating rod 210 to rotate, and the rotating rod 210 is matched with a roller 212 for use to guide and level a sealed membrane 203; then, a driving motor 11 is driven, the driving motor 11 drives a first gear 12 to rotate, the first gear 12 drives a second gear 133 to rotate through a chain, the second gear 133 drives a second winding roller 132 to rotate, the second winding roller 132 drives a third gear 134 to rotate, the third gear 134 drives a fourth gear 138 to rotate through a chain, so as to drive a first winding roller 131 to rotate, and the first winding roller 131 and the second winding roller 132 are wound to obtain a pretreated nanofiltration membrane element;
and step four, placing the pretreated nanofiltration membrane element in an automatic cutting machine, and cutting to obtain the nanofiltration membrane element.
The winding mechanism comprises a winding seat 1 and a fixed seat 2, a winding frame 13 is fixedly installed at the center of the top of the winding seat 1, a first winding roller 131 and a second winding roller 132 are symmetrically installed at the lower end of the winding frame 13, a second gear 133 and a third gear 134 are sleeved on the second winding roller 132, the second gear 133 is connected with a first gear 12 through a chain, the first gear 12 is sleeved on an output shaft of a driving motor 11, and the driving motor 11 is installed on the winding seat 1; the third gear 134 is connected with a fourth gear 138 sleeved on the first winding roller 131 through a chain, and guide rollers 135 are arranged on the outer sides of the first winding roller 131 and the second winding roller 132;
a compression roller 137 is arranged right above the first winding roller 131 and the second winding roller 132, the compression roller 137 is rotatably mounted on a bearing sleeve 139, two sides of the bearing sleeve 139 are slidably connected with the winding frame 13, the top of the bearing sleeve 139 is connected with a fixing plate 1311 through a spring 1312, an adjusting bolt 1310 for adjusting the height of the bearing sleeve 139 is arranged at the top of the fixing plate 1311, and the adjusting bolt 1310 is locked through a nut; guide rods 136 are arranged on the outer sides of the two guide rollers 135;
adjusting frames 14 are arranged on two sides of the winding frame 13, a guide plate 141 is arranged on one side of each adjusting frame 14, a first screw rod 146 and a balance rod 147 are arranged between the adjusting frames 14, the first screw rod 146 and the balance rod 147 are arranged in parallel, one end of the first screw rod 146 extends out of the adjusting frames 14 and is fixedly connected with a hand wheel 144, first sliding blocks 145 are movably connected on the first screw rod 146 and the balance rod 147, movable plates 143 are fixedly arranged on the first sliding blocks 145, and two guide wheels 142 are symmetrically and rotatably connected on the movable plates 143; the two guide rods 136 are arranged in parallel, and the two guide rollers 135 are arranged in parallel; the first winding roller 131 and the second winding roller 132 are arranged in parallel, and the two pressing rollers 137 are arranged in parallel
The both sides of rolling seat 1 all are provided with fixing base 2, one side fixed mounting of fixing base 2 has servo motor 21, the action wheel 22 has been cup jointed on servo motor 21's the output shaft, action wheel 22 passes through belt 23 and is connected from driving wheel 24, it cup joints the one end at dwang 210 from driving wheel 24, the other end and the fixing base 2 transmission of dwang 210 are connected, two mounting panels 211 are installed to the symmetry on fixing base 2, two connect through the pivot 28 of level setting between the mounting panel 211, the one end fixed mounting of pivot 28 has connecting block 26, one side of connecting block 26 is provided with rocker 25, rocker 25 sets up with pivot 28 is perpendicular, two first bevel gears 27 have been cup jointed in the pivot 28, first bevel gear 27 all is connected with the meshing of second bevel gear 29, second bevel gear 29 sets up with first bevel gear 27 is perpendicular, the second bevel gear 29 is fixed on a second lead screw 214 which is vertically arranged, one end of the second lead screw 214, which is far away from the second bevel gear 29, is in threaded connection with a second sliding block 215, the second sliding block 215 is in sliding connection with the fixed seat 2, the second sliding block 215 is rotatably connected with two fixed rods 213 which are arranged in parallel, and rollers 212 are uniformly arranged on the fixed rods 213.
The winding mechanism comprises the following working steps: firstly, the rocker 25 is rotated, the rotating shaft 28 is driven to rotate through the connecting block 26, the rotating shaft 28 drives the two first bevel gears 27 to rotate, the first bevel gears 27 drive the second bevel gears 29 to rotate, and further drive the second screw rod 214 to rotate, the second screw rod 214 drives the second sliding block 215 to ascend and descend, the height of the second sliding block 215 is adjusted, and further the distance between the roller 212 and the rotating rod 210 is adjusted;
then, the servo motor 21 is driven to drive the driving wheel 22 to rotate, the driving wheel 22 drives the driven wheel 24 to rotate through the belt 23, the driven wheel 24 drives the rotating rod 210 to rotate, and the rotating rod 210 is matched with the roller 212 for use to guide and level the sealed diaphragm 203;
then, the driving motor 11 is driven, the driving motor 11 drives the first gear 12 to rotate, the first gear 12 drives the second gear 133 to rotate through a chain, the second gear 133 drives the second winding roller 132 to rotate, the second winding roller 132 drives the third gear 134 to rotate, the third gear 134 drives the fourth gear 138 to rotate through a chain, the first winding roller 131 is further driven to rotate, and the first winding roller 131 and the second winding roller 132 are wound;
in the winding process, the bearing sleeve 139 is driven to slide up and down by rotating the adjusting bolt 1310, so as to drive the compression roller 137 to lift, thereby adjusting the distance between the compression roller 137 and the first winding roller 131 and the distance between the compression roller 137 and the second winding roller 132.
The working principle of the invention is as follows: firstly, the rocker 25 is rotated, the rotating shaft 28 is driven to rotate through the connecting block 26, the rotating shaft 28 drives the two first bevel gears 27 to rotate, the first bevel gears 27 drive the second bevel gears 29 to rotate, and further drive the second screw rod 214 to rotate, the second screw rod 214 drives the second sliding block 215 to ascend and descend, the height of the second sliding block 215 is adjusted, and further the distance between the roller 212 and the rotating rod 210 is adjusted; the membrane elements with different thicknesses can be conveniently processed, and the practicability is high; then, the servo motor 21 is driven to drive the driving wheel 22 to rotate, the driving wheel 22 drives the driven wheel 24 to rotate through the belt 23, the driven wheel 24 drives the rotating rod 210 to rotate, the rotating rod 210 is matched with the roller 212 for use, and the sealed membrane 203 is guided and flattened, so that the membrane is smoother and convenient to subsequently wind; the first screw rod 146 is driven to rotate by rotating the hand wheel 144, the first screw rod 146 is provided with a left thread and a right thread which are opposite, the first screw rod 146 drives the two first sliding blocks 145 to move in the opposite direction or the opposite direction, so that the distance between the two movable plates 143 is adjusted, and meanwhile, the guide wheel 142 is matched, so that elements with different widths can be guided conveniently, and the rolling effect is better; then, the driving motor 11 is started, the driving motor 11 drives the first gear 12 to rotate, the first gear 12 drives the second gear 133 to rotate through a chain, the second gear 133 drives the second winding roller 132 to rotate, the second winding roller 132 drives the third gear 134 to rotate, the third gear 134 drives the fourth gear 138 to rotate through a chain, the first winding roller 131 is further driven to rotate, and the first winding roller 131 and the second winding roller 132 are wound; through the arrangement of the invention, two groups of elements can be wound simultaneously, the working efficiency is high, and the practicability is strong.
In the winding process, the adjusting bolt 1310 is rotated to drive the bearing sleeve 139 to ascend and descend, so that the adjusting press roller 137 is abutted against the diaphragm element when the spring 1312 is in a natural state, the diaphragm element is pressed to be in a flat state through a gap between the press roller 137 and the winding roller and is wound on the winding roller in the winding process, the thickness of the diaphragm element on the winding roller is gradually increased along with the winding work, but the press roller 137 is always abutted against the winding roller, so that the pressing force can be continuously applied to the diaphragm element, the diaphragm element is pressed to be in the flat state all the time and is wound on the winding roller, and the winding of the diaphragm element is tight and not loose when the diaphragm element is wound; in the winding process, as the thickness of the film element on the winding roller is gradually increased, the compressed degree of the spring 1312 is gradually increased, and the pressing force exerted on the film element by the pressing roller 137 is also gradually increased, in order to prevent the film element from being damaged by the pressing roller 137, the adjusting bolt 1310 can be rotated to drive the pressing roller 137 to appropriately move upwards, so that the compressed degree of the film element by the spring 1312 is reduced, and the pressing force exerted on the film element by the pressing roller 137 is reduced.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (6)
1. The water-saving nanofiltration membrane element is characterized by comprising a membrane element body (100), wherein the membrane element body (100) consists of a central tube (101), a through hole (111), a winding outer sleeve (201), a first inlet air flow grid (202), a membrane (203), a permeation collection grid (204) and a second inlet air flow grid (205), the central tube (101) is provided with the through hole (111), the central tube (101) is externally provided with the second inlet air flow grid (205), the second inlet air flow grid (205) is externally provided with the membrane (203), the membrane (203) is staggered and folded into two pieces, the permeation collection grid (204) is arranged between the folded membrane (203), the membrane (203) is provided with the first inlet air flow grid (202), and the winding outer sleeve (201) is externally provided with the first inlet air flow grid (202);
the nanofiltration membrane element is prepared by the following steps:
firstly, cutting a selected diaphragm (203) by a diaphragm cutting machine;
step two, opening an operation lamp before the operation of laminating the membranes, flatly paving the membranes (203) on a table top to check whether light transmission or black spots exist, lightly placing a silk screen at the surface position of the membranes (203), performing dislocation folding on the membranes at a position 10-15mm away from the middle point end of the silk screen and the membranes (203) into two pieces, then placing a permeation collection grid (204) between the folded membranes (203), and sealing the folded membranes (203) with the three sides of a water inlet wind flow grid I (202) through resin sealant;
step three, winding the two groups of sealed membranes (203) through a winding mechanism; firstly, a servo motor (21) is driven to drive a driving wheel (22) to rotate, the driving wheel (22) drives a driven wheel (24) to rotate through a belt (23), the driven wheel (24) drives a rotating rod (210) to rotate, the rotating rod (210) is matched with a roller (212) for use, and the sealed diaphragm (203) is guided and leveled; then a driving motor (11) is started, the driving motor (11) drives a first gear (12) to rotate, the first gear (12) drives a second gear (133) to rotate through a chain, the second gear (133) drives a second wind-up roll (132) to rotate, the second wind-up roll (132) drives a third gear (134) to rotate, the third gear (134) drives a fourth gear (138) to rotate through the chain, and further drives the first wind-up roll (131) to rotate, and the first wind-up roll (131) and the second wind-up roll (132) wind up to obtain a pretreatment nanofiltration membrane element;
fourthly, placing the pretreated nanofiltration membrane element in an automatic cutting machine, and cutting to obtain the nanofiltration membrane element;
the winding mechanism comprises a winding seat (1) and a fixed seat (2), a winding frame (13) is fixedly installed at the center of the top of the winding seat (1), a first winding roller (131) and a second winding roller (132) are symmetrically installed at the lower end of the winding frame (13), a second gear (133) and a third gear (134) are sleeved on the second winding roller (132), the second gear (133) is connected with a first gear (12) through a chain, the first gear (12) is sleeved on an output shaft of a driving motor (11), and the driving motor (11) is installed on the winding seat (1); the third gear (134) is connected with a fourth gear (138) sleeved on the first winding roller (131) through a chain, and guide rollers (135) are arranged on the outer sides of the first winding roller (131) and the second winding roller (132);
the both sides of rolling seat (1) all are provided with fixing base (2), one side fixed mounting of fixing base (2) has servo motor (21), action wheel (22) has been cup jointed on the output shaft of servo motor (21), action wheel (22) pass through belt (23) and are connected from driving wheel (24), cup joint the one end at dwang (210) from driving wheel (24), the other end and fixing base (2) transmission of dwang (210) are connected, two mounting panel (211) are installed to symmetry on fixing base (2), two pivot (28) through the level setting between mounting panel (211) are connected, the one end fixed mounting of pivot (28) has connecting block (26), one side of connecting block (26) is provided with rocker (25), rocker (25) set up with pivot (28) are perpendicular, two first bevel gears (27) have been cup jointed on pivot (28), first bevel gear (27) all is connected with second bevel gear (29) meshing, second bevel gear (29) and first bevel gear (27) set up perpendicularly, second bevel gear (29) are fixed on second lead screw (214) of vertical setting, the one end and second slider (215) threaded connection of second bevel gear (29) are kept away from in second lead screw (214), second slider (215) and fixing base (2) sliding connection, it is connected with two parallel arrangement's dead lever (213) to rotate on second slider (215), evenly be provided with gyro wheel (212) on dead lever (213).
2. The water-saving nanofiltration membrane element according to claim 1, wherein a compression roller (137) is arranged right above the first winding roller (131) and the second winding roller (132), the compression roller (137) is rotatably mounted on a bearing sleeve (139), two sides of the bearing sleeve (139) are slidably connected with the winding frame (13), the top of the bearing sleeve (139) is connected with a fixing plate (1311) through a spring (1312), an adjusting bolt (1310) for adjusting the height of the bearing sleeve (139) is arranged at the top of the fixing plate (1311), and the adjusting bolt (1310) is locked through a nut; guide rods (136) are arranged on the outer sides of the two guide rollers (135).
3. The water-saving nanofiltration membrane element according to claim 1, wherein two sides of the winding frame (13) are respectively provided with an adjusting frame (14), one side of each adjusting frame (14) is provided with a guide plate (141), a first screw rod (146) and a balance rod (147) are arranged between the adjusting frames (14), the first screw rod (146) and the balance rod (147) are arranged in parallel, one end of the first screw rod (146) extends out of the adjusting frame (14) and is fixedly connected with a hand wheel (144), the first screw rod (146) and the balance rod (147) are respectively and movably connected with a first sliding block (145), a movable plate (143) is fixedly installed on the first sliding block (145), and the movable plate (143) is symmetrically and rotatably connected with two guide wheels (142).
4. The water-saving nanofiltration membrane element according to claim 1, wherein two guide rods (136) are arranged in parallel, and two guide rollers (135) are arranged in parallel.
5. The water-saving nanofiltration membrane element according to claim 1, wherein the first winding roller (131) and the second winding roller (132) are arranged in parallel, and the two compression rollers (137) are arranged in parallel.
6. The water-saving nanofiltration membrane element according to claim 1, wherein the rolling mechanism comprises the following working steps: firstly, a rocker (25) is rotated, a rotating shaft (28) is driven to rotate through a connecting block (26), the rotating shaft (28) drives two first bevel gears (27) to rotate, the first bevel gears (27) drive a second bevel gear (29) to rotate so as to drive a second screw rod (214) to rotate, the second screw rod (214) drives a second sliding block (215) to ascend and descend, the height of the second sliding block (215) is adjusted, and the distance between a roller (212) and a rotating rod (210) is adjusted;
then a servo motor (21) is started to drive a driving wheel (22) to rotate, the driving wheel (22) drives a driven wheel (24) to rotate through a belt (23), the driven wheel (24) drives a rotating rod (210) to rotate, the rotating rod (210) is matched with a roller (212) for use, and the sealed diaphragm (203) is guided and leveled;
then a driving motor (11) is started, the driving motor (11) drives a first gear (12) to rotate, the first gear (12) drives a second gear (133) to rotate through a chain, the second gear (133) drives a second winding roller (132) to rotate, the second winding roller (132) drives a third gear (134) to rotate, the third gear (134) drives a fourth gear (138) to rotate through the chain, the first winding roller (131) is further driven to rotate, and the first winding roller (131) and the second winding roller (132) are wound;
in the winding process, the bearing sleeve (139) is driven to slide up and down by rotating the adjusting bolt (1310), and then the compression roller (137) is driven to lift, so that the distance between the compression roller (137) and the first winding roller (131) and the distance between the compression roller (137) and the second winding roller (132) are adjusted.
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| CN109952144B (en) * | 2016-10-31 | 2021-08-31 | 东丽株式会社 | Separation membrane element |
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| CN208406645U (en) * | 2018-04-26 | 2019-01-22 | 苏州润膜水处理科技有限公司 | High-performance ultrafiltration membrane module |
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