CN110327778B - Membrane rolling machine for improving permeability of sealant for reverse osmosis membrane filter element - Google Patents
Membrane rolling machine for improving permeability of sealant for reverse osmosis membrane filter element Download PDFInfo
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- CN110327778B CN110327778B CN201910648171.8A CN201910648171A CN110327778B CN 110327778 B CN110327778 B CN 110327778B CN 201910648171 A CN201910648171 A CN 201910648171A CN 110327778 B CN110327778 B CN 110327778B
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- reverse osmosis
- osmosis membrane
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- membrane
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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
- B01D61/025—Reverse osmosis; Hyperfiltration
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/003—Membrane bonding or sealing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/04—Specific sealing means
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Nanotechnology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a membrane rolling machine for improving the permeability of a sealant for a reverse osmosis membrane filter element, which comprises a platform for supporting a reverse osmosis membrane, wherein one end of the platform is provided with a membrane rolling device, the membrane rolling device comprises a first plug and a second plug which are oppositely arranged, the second plug comprises a fixed part and a rotating part, the rotating part is rotatably connected with the fixed part, an air inlet channel is arranged in the fixed part, one end of the air inlet channel extends to the side wall of the fixed part to form an air inlet, and the other end of the air inlet channel extends to the head part of the fixed part to form an air outlet; the pneumatic booster pump is installed to platform side, pneumatic booster pump's gas outlet passes through the hose and the air inlet intercommunication of inlet channel. According to the invention, high-pressure gas is filled into the water collecting pipe through the pneumatic booster pump, and the sealant coated on the surface of the reverse osmosis membrane is enabled to permeate to the front active layer from the supporting layer of the reverse osmosis membrane under the influence of the gas pressure by utilizing the action of the gas pressure, so that the permeability of the sealant is improved.
Description
Technical Field
The invention belongs to the technical field of filter elements, and particularly relates to a membrane rolling machine for improving the permeability of a sealant for a reverse osmosis membrane filter element.
Background
The membrane element is a core part in the reverse osmosis water purifier, the membrane element comprises a reverse osmosis membrane and a nanofiltration membrane, the membrane element is formed by winding a water inlet separation net, a reverse osmosis membrane and a pure water diversion net around a water collecting pipe, a waterproof adhesive tape is wound on the periphery of the membrane element for fixing to form a cylindrical membrane element, and small holes are formed in the water collecting pipe for collecting filtered water and then discharging the filtered water from a water outlet; one end of the water collecting pipe is closed, so that raw water entering the filter layer is prevented from entering the pipe, and water mixing is prevented; the other end of the water collecting pipe is a filtered water outlet end.
Each layer of reverse osmosis membrane element of winding all includes into water and separates net, reverse osmosis membrane piece and pure water conservancy diversion, and by stacking from top to bottom, to reverse osmosis membrane element fifty percent discount before the winding, later scribble at the supporting layer of reverse osmosis membrane piece sealed glue, bond the reverse osmosis membrane element of winding sealed to realize reverse osmosis membrane's drainage function. However, since the reverse osmosis membrane is a high polymer, it is difficult for the sealant to permeate from the support layer to the front active layer of the reverse osmosis membrane, which may affect the sealing performance of the entire filter element, and may further affect the water filtration function.
Disclosure of Invention
The invention provides a membrane rolling machine for improving the permeability of a sealing gum for a reverse osmosis membrane filter element, aiming at the problems in the prior art.
The invention solves the technical problems through the following technical means:
the membrane rolling machine for improving the permeability of the sealant for the reverse osmosis membrane filter element comprises a platform for supporting a reverse osmosis membrane, wherein one end of the platform is provided with a membrane rolling device, the membrane rolling device comprises a first plug and a second plug which are oppositely arranged, the second plug comprises a fixed part and a rotating part, the rotating part is rotatably connected with the fixed part, an air inlet channel is arranged in the fixed part, one end of the air inlet channel extends to the side wall of the fixed part to form an air inlet, and the other end of the air inlet channel extends to the head of the fixed part to form an air outlet; the pneumatic booster pump is installed to platform side, pneumatic booster pump's gas outlet passes through the hose and the air inlet intercommunication of inlet channel.
Furthermore, the matching and fixing surface of the first plug and the water collecting pipe is a conical surface, the matching and fixing surface of the rotating part and the water collecting pipe is also a conical surface, a first sealing rubber layer is embedded on the matching and fixing surface of the first plug and the water collecting pipe, and a second sealing rubber layer is embedded on the matching and fixing surface of the rotating part and the water collecting pipe.
Further, a heater is further arranged between the second plug and the pneumatic booster pump, the air outlet end of the pneumatic booster pump is communicated with the inlet of the heater, and the outlet of the heater is communicated with the air inlet of the air inlet channel.
Further, the top of rolling up the membrane device still is equipped with negative pressure generating device, negative pressure generating device includes the inside housing that forms the negative pressure chamber, the bottom of housing is equipped with the opening, the top of housing is equipped with the connector, the connector communicates with the negative pressure chamber in the housing, connector and air compressor's inlet end intercommunication.
Furthermore, the top of the housing is fixedly provided with an elastic pressing device, the elastic pressing device comprises an upper connecting plate, a lower connecting plate, a spring and a guide rod, the lower end of the guide rod is fixedly connected with the lower connecting plate, the upper end of the guide rod is connected with the upper connecting plate in a sliding manner, the spring is sleeved outside the guide rod, the spring is arranged between the upper connecting plate and the lower connecting plate, and the lower connecting plate is fixed at the top of the housing.
Furthermore, a limiting ring is fixed at the upper end of the guide rod and arranged on the upper surface of the upper connecting plate.
Furthermore, an air cylinder is further arranged on the upper connecting plate, and a telescopic rod of the air cylinder is downward and fixed on the upper connecting plate.
The invention has the following beneficial effects: according to the invention, high-pressure gas is filled into the water collecting pipe through the pneumatic booster pump, and the sealant coated on the surface of the reverse osmosis membrane is enabled to permeate to the front active layer from the supporting layer of the reverse osmosis membrane under the influence of the gas pressure by utilizing the action of the gas pressure, so that the permeability of the sealant is improved.
Drawings
FIG. 1 is a schematic structural view (in a top view) of a film rolling machine according to the present invention;
FIG. 2 is a schematic structural view (front view state) of the film rolling machine of the present invention;
fig. 3 is a schematic structural diagram of the first plug and the second plug of the present invention for fixing the water collecting pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
Examples
As shown in fig. 1 and 2, the membrane rolling machine for improving the permeability of the sealant for the reverse osmosis membrane filter element comprises a platform 10 for supporting the reverse osmosis membrane element 1, wherein one end of the platform 10 is provided with a membrane rolling device, and the membrane rolling device comprises a first plug 21 and a second plug 22 which are oppositely arranged. The first plug 21 and the second plug 22 are conventional components of a film winding machine, the first plug 21 is fixedly connected to one end of a shaft rod 24, the shaft rod 24 is rotatably arranged in the mounting seat 23, the other end of the shaft rod 24 extends out of the mounting seat 23, a speed reducing motor 25 is fixed beside the mounting seat 23, an output shaft of the speed reducing motor 25 is in transmission connection with one end of the shaft rod 24 extending to the mounting seat 23 through a gear or a belt, and the speed reducing motor 25 provides rotating energy for the first plug 21; in addition, the second plug 22 is rotatably connected to a telescopic rod of the cylinder 26 through a bearing component, when the membrane is rolled, the water collecting pipe is placed between the first plug 21 and the second plug 22, the cylinder 26 is controlled to work, the telescopic rod of the cylinder 26 extends, the second plug 22 moves towards the first plug 21 to clamp and fix the water collecting pipe, the second plug 22 extends towards the head of the first plug 21 into the water collecting pipe, the reverse osmosis membrane element 1 is placed on the platform 10, one end of the reverse osmosis membrane element 1 is fixed on the pipe wall of the water collecting pipe, the sealant 2 is extruded to the surface of the reverse osmosis membrane element 1 through a glue-extruding manipulator (not shown in the figure), the sealant 2 is extruded to the surface of a supporting layer of the reverse osmosis membrane, then the speed-reducing motor 25 is controlled to work, the first plug 21 rotates to drive the water collecting pipe to rotate through friction force, and therefore the reverse osmosis membrane element 1 is wound on the water collecting pipe to form a filter element.
As shown in fig. 1 and 3, the second plug 22 includes a fixing portion 221 and a rotating portion 222, the rotating portion 222 is rotatably connected to the fixing portion 221 through a bearing, an air inlet passage 223 is provided in the fixing portion 221, one end of the air inlet passage 223 extends to a side wall of the fixing portion 221 to form an air inlet, and the other end of the air inlet passage 223 extends to a head of the fixing portion 221 to form an air outlet; the pneumatic booster pump 30 is installed to platform 10 side, the air outlet of pneumatic booster pump 30 passes through the air inlet intercommunication of hose and inlet channel 223.
As shown in fig. 3, the rotating portion 222 of the second plug 22 is rotatably connected to the fixed portion 221 through a barrel bearing, one end surface of the fixed portion 221 is provided with a mounting fixing groove 224, the fixing groove 224 is used for being fixedly connected to an expansion link of the cylinder 26 in a matching manner, the other end surface of the fixed portion 221 is provided with a protruding cylindrical connecting portion 225, an inner ring of the bearing is fixed to the connecting portion 225, and an outer ring of the bearing is fixed to an inner wall of the rotating portion 222, that is, the rotating portion 222 is rotatably connected to the fixed portion 221; in order to reduce the friction resistance, the bearing adopts a rolling bearing, and due to the existence of gaps in the bearing, the gas in the water collecting pipe can overflow outwards through the bearing, and therefore, sealing leather cups (not shown in the figure) are arranged on two sides of the mounting surface of the bearing and are used for assisting in reducing the gas overflow.
As shown in fig. 3, in order to improve the sealing performance of the first plug 21 and the second plug 22 against both ends of the water collecting pipe, the fitting fixing surface of the first plug 21 and the water collecting pipe is set to be a tapered surface, the fitting fixing surface of the rotating part 222 and the water collecting pipe is also set to be a tapered surface, the fitting fixing surface of the first plug 21 and the water collecting pipe is embedded with a first sealing rubber layer 226, and the fitting fixing surface of the rotating part 222 and the water collecting pipe is embedded with a second sealing rubber layer 227. In this way, the flexible deformation characteristics of the first sealing rubber layer 226 and the second sealing rubber layer 227 are utilized to reduce the gap at the joint where the first sealing rubber layer and the second sealing rubber layer are matched with the water collecting pipe, and the sealing performance is improved.
As shown in fig. 1, a heater 40 is further arranged between the second plug 22 and the pneumatic booster pump 30, a heating pipe is arranged inside the heater 40, the heater 40 is provided with a heating cavity, an inlet and an outlet, the heating cavity is respectively communicated with the inlet and the outlet, the heating pipe is arranged inside the heating cavity, the air outlet end of the pneumatic booster pump 30 is communicated with the inlet of the heater 40 through a pipeline, and the outlet of the heater 40 is communicated with the air inlet of the air inlet passage 223 through a pipeline.
Because the sealant 2 can be solidified in the air, which is not beneficial to the penetration of the sealant 2 into the reverse osmosis membrane element 1, the heater 40 is arranged to heat the high-pressure gas generated by the pneumatic booster pump 30, so that the temperature of the high-pressure gas rises, and then the high-pressure gas is conveyed into the air inlet passage 223, so that the solidification of the sealant 2 can be delayed when the high-temperature gas presses the sealant 2, and the penetration of the sealant 2 into the reverse osmosis membrane element 1 is beneficial; in addition, the high-temperature gas can also raise the temperature of the sealant 2 through heat conduction, so that the irregular molecular motion of the sealant 2 is improved, the molecular internal energy of the sealant 2 is also improved, and the permeation of the sealant 2 into the reverse osmosis membrane element 1 is also helped to a certain extent.
As shown in fig. 2, a negative pressure generating device is further arranged above the film winding device, the negative pressure generating device comprises a housing 51 with a negative pressure cavity formed inside, an opening is arranged at the bottom of the housing 51, a connector 511 is arranged at the top of the housing 51, the connector 511 is communicated with the negative pressure cavity in the housing 51, and the connector 511 is further communicated with an air inlet end of an air compressor (not shown in the figure) through a pipeline.
The inside of the housing 51 generates negative pressure through an air compressor, so that the surface air pressure of the reverse osmosis membrane element 1 wound on the water collecting pipe is reduced, and further a strong pressure difference is formed with the high pressure generated inside the water collecting pipe, so that the sealant 2 can permeate the reverse osmosis membrane element 1 more easily under the action of double pressure.
As shown in fig. 2, the housing 51 is provided in a floating contact type to further exhibit the negative pressure effect of the negative pressure generator. An elastic pressing device is fixedly mounted at the top of the housing 51 and comprises an upper connecting plate 521, a lower connecting plate 522, a spring 523 and a guide rod 524, the lower end of the guide rod 524 is fixedly connected with the lower connecting plate 522, the upper end of the guide rod 524 is slidably connected with the upper connecting plate 521, the spring 523 is sleeved outside the guide rod 524, the spring 523 is arranged between the upper connecting plate 521 and the lower connecting plate 522, and the lower connecting plate 522 is fixed at the top of the housing 51.
The lower end opening of the housing 51 is attached to the surface formed by the reverse osmosis membrane element 1, so that the phenomenon that external air is converged to the lower end opening of the housing 51 to weaken the negative pressure effect of the housing 51 can be avoided, the reverse osmosis membrane element 1 on the water collecting pipe is thicker and thicker along with the rotation of the water collecting pipe, at the moment, the housing 51 can be extruded outwards, the spring 523 is compressed, the upper end part of the guide rod 524 slides out of the upper connecting plate 521, the extrusion action of the reverse osmosis membrane element 1 on the housing 51 is converted to an elastic pressing device, meanwhile, the spring 523 can generate reaction force on the housing 51, the opening of the housing 51 is attached to the reverse osmosis membrane element 1, one-way airflow from the water collecting pipe to the housing 51 is formed, and the effect of the sealant 2 permeating the reverse osmosis membrane element 1 under the action of double pressure is improved; in addition, the acting force of the spring 523 on the housing 51 is also reacted on the reverse osmosis membrane element 1, so that pressure is formed on the reverse osmosis membrane element 1, and the tightness of the winding of the reverse osmosis membrane element 1 is favorably improved.
As shown in fig. 2, a limit ring 526 is further fixed to the upper end of the guide rod 524, and the limit ring 526 is disposed on the upper surface of the upper connecting plate 521. The retainer ring 526 is provided to prevent the housing 51 from being released from the reverse osmosis membrane element 1 and then being released, causing the guide rod 524 to slip off the upper connection plate 521.
In order to improve the controllability of the housing 51, the upper connecting plate 521 is further provided with an air cylinder 525, and an expansion rod of the air cylinder 525 is downward and fixed on the upper connecting plate 521. The air cylinder 525 can control the housing 51 to move up and down, the air cylinder 525 controls the housing 51 to move down to be attached to the surface of the reverse osmosis membrane element 1 before the reverse osmosis membrane element 1 is wound, and after the winding is finished, the air cylinder 525 controls the housing 51 to move up to be away from the reverse osmosis membrane element 1, so that the wound filter element can be taken out conveniently.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. The membrane rolling machine for improving the permeability of the sealant for the reverse osmosis membrane filter element comprises a platform (10) for supporting a reverse osmosis membrane, wherein one end of the platform (10) is provided with a membrane rolling device, the membrane rolling device comprises a first plug (21) and a second plug (22) which are oppositely arranged, and the membrane rolling machine is characterized in that the second plug (22) comprises a fixed part (221) and a rotating part (222), the rotating part (222) is rotatably connected with the fixed part (221), an air inlet channel (223) is arranged in the fixed part (221), one end of the air inlet channel (223) extends to the side wall of the fixed part (221) to form an air inlet, and the other end of the air inlet channel (223) extends to the head of the fixed part (221) to form an air outlet; a pneumatic booster pump (30) is arranged on the side of the platform (10), and an air outlet of the pneumatic booster pump (30) is communicated with an air inlet of the air inlet channel (223) through a hose;
the water collecting pipe is characterized in that the matching and fixing surface of the first plug (21) and the water collecting pipe is a conical surface, the matching and fixing surface of the rotating part (222) and the water collecting pipe is also a conical surface, a first sealing rubber layer (226) is embedded on the matching and fixing surface of the first plug (21) and the water collecting pipe, and a second sealing rubber layer (227) is embedded on the matching and fixing surface of the rotating part (222) and the water collecting pipe.
2. The membrane rolling machine for improving the permeability of the sealing gum of the reverse osmosis membrane filter element according to claim 1, wherein a heater (40) is further arranged between the second plug (22) and the pneumatic booster pump (30), the air outlet end of the pneumatic booster pump (30) is communicated with the inlet of the heater (40), and the outlet of the heater (40) is communicated with the air inlet of the air inlet channel (223).
3. The reverse osmosis membrane filter core is with rolling up membrane machine that improves sealed glue permeability according to claim 2, characterized in that, the top of rolling up the membrane device still is equipped with negative pressure generating device, negative pressure generating device includes the housing (51) of inside formation negative pressure chamber, the bottom of housing (51) is equipped with the opening, the top of housing (51) is equipped with connector (511), connector (511) and the interior negative pressure chamber intercommunication of housing (51), connector (511) and air compressor's inlet end intercommunication.
4. The reverse osmosis membrane filter element is with rolling up membrane machine that improves sealed glue permeability according to claim 3, characterized in that, elastic pressure device is fixedly installed at the top of housing (51), elastic pressure device includes upper junction plate (521), lower junction plate (522), spring (523) and guide bar (524), the lower extreme and lower junction plate (522) fixed connection of guide bar (524), the upper end and the upper junction plate (521) sliding connection of guide bar (524), spring (523) cover is established outside guide bar (524), and spring (523) set up between upper junction plate (521) and lower junction plate (522), lower junction plate (522) are fixed at the top of housing (51).
5. The membrane rolling machine for improving the permeability of the sealing gum for the reverse osmosis membrane filter element according to claim 4, characterized in that a limiting ring (526) is further fixed at the upper end of the guide rod (524), and the limiting ring (526) is arranged on the upper surface of the upper connecting plate (521).
6. The membrane rolling machine for improving the permeability of the sealing gum for the reverse osmosis membrane filter element according to claim 5, characterized in that the upper connecting plate (521) is further provided with an air cylinder (525), and an expansion link of the air cylinder (525) is downward and fixed on the upper connecting plate (521).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648171.8A CN110327778B (en) | 2019-07-17 | 2019-07-17 | Membrane rolling machine for improving permeability of sealant for reverse osmosis membrane filter element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648171.8A CN110327778B (en) | 2019-07-17 | 2019-07-17 | Membrane rolling machine for improving permeability of sealant for reverse osmosis membrane filter element |
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| Publication Number | Publication Date |
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| CN110327778A CN110327778A (en) | 2019-10-15 |
| CN110327778B true CN110327778B (en) | 2021-09-17 |
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Citations (6)
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| JP2013052316A (en) * | 2011-08-31 | 2013-03-21 | Hitachi Plant Technologies Ltd | Exchange device for reverse osmosis membrane element |
| CN206108478U (en) * | 2016-08-16 | 2017-04-19 | 安徽霍山亚力包装材料有限公司 | Plastic film rolling machine |
| CN207684571U (en) * | 2017-12-30 | 2018-08-03 | 汕头市建亨投资管理有限公司 | A kind of Film rolling mechanism of reverse osmosis membrane production automatic film rolling machine |
| CN208512293U (en) * | 2018-04-13 | 2019-02-19 | 东莞理工学院 | A kind of film wire automatic placement machine and its membrane module production equipment |
| CN109364760A (en) * | 2018-11-16 | 2019-02-22 | 华电水务膜分离科技（天津）有限公司 | A kind of takeup type hyperfiltration membrane assembly and preparation method thereof |
| CN208603515U (en) * | 2018-07-17 | 2019-03-15 | 安徽智泓净化科技股份有限公司 | A kind of reverse osmosis function membrane component adhesive waterproof tape winding device |
-
2019
- 2019-07-17 CN CN201910648171.8A patent/CN110327778B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013052316A (en) * | 2011-08-31 | 2013-03-21 | Hitachi Plant Technologies Ltd | Exchange device for reverse osmosis membrane element |
| CN206108478U (en) * | 2016-08-16 | 2017-04-19 | 安徽霍山亚力包装材料有限公司 | Plastic film rolling machine |
| CN207684571U (en) * | 2017-12-30 | 2018-08-03 | 汕头市建亨投资管理有限公司 | A kind of Film rolling mechanism of reverse osmosis membrane production automatic film rolling machine |
| CN208512293U (en) * | 2018-04-13 | 2019-02-19 | 东莞理工学院 | A kind of film wire automatic placement machine and its membrane module production equipment |
| CN208603515U (en) * | 2018-07-17 | 2019-03-15 | 安徽智泓净化科技股份有限公司 | A kind of reverse osmosis function membrane component adhesive waterproof tape winding device |
| CN109364760A (en) * | 2018-11-16 | 2019-02-22 | 华电水务膜分离科技（天津）有限公司 | A kind of takeup type hyperfiltration membrane assembly and preparation method thereof |
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| CN110327778A (en) | 2019-10-15 |
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