CN111185100A - Central tube for roll type membrane, roll type membrane component and water purification system - Google Patents
Central tube for roll type membrane, roll type membrane component and water purification system Download PDFInfo
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- CN111185100A CN111185100A CN202010103366.7A CN202010103366A CN111185100A CN 111185100 A CN111185100 A CN 111185100A CN 202010103366 A CN202010103366 A CN 202010103366A CN 111185100 A CN111185100 A CN 111185100A
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- central tube
- wall
- extension arm
- end cover
- water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/10—Supported membranes; Membrane supports
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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
- B01D63/10—Spiral-wound membrane modules
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/26—Further operations combined with membrane separation processes
- B01D2311/2649—Filtration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/08—Flow guidance means within the module or the apparatus
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention provides a central tube for a spiral wound membrane, a spiral wound membrane module and a water purification system, wherein the central tube (102) is of a cylindrical structure, the cylindrical structure comprises an inner wall (102d) and an outer wall (102e), and a cavity (102f) positioned inside the inner wall (102d), and the central tube (102) is made of filter material capable of allowing fluid to pass through so as to allow the fluid to pass from the inner wall (102d) to the outer wall (102e) or from the outer wall (102e) to the inner wall (102d) and reach the cavity (102 f). The invention can form the function of primary filtration through the central tube, realizes the integration of the structural function of the central tube, enables the central tube to support the roll-type membrane and collect produced water, and also realizes the filtration function, effectively reduces the increase of the volume of the filter element, and is beneficial to effectively reducing the volume of the whole machine.
Description
Technical Field
The invention belongs to the technical field of water purification, and particularly relates to a central tube for a roll type membrane, a roll type membrane component and a water purification system.
Background
The existing roll-type membrane elements need to be wound on a central tube for preparing plastic pieces, and the central tube plays a role in supporting the roll-type membrane and collecting produced water. In addition, when the roll-type membrane is used, the rear end of the roll-type membrane is required to be connected in series to improve the filter element in taste, so that the number of stages of the filter element is increased, and the volume of the whole machine is not reduced.
Because the central tube in the water purifier in the prior art is used for supporting the roll-type membrane and collecting produced water, and the rear end of the central tube needs to be connected with a series taste-improving filter element, the stage number of the filter element is increased, the volume of the whole water purifier is not reduced, and the like, the central tube, the roll-type membrane module and the water purification system for the roll-type membrane are researched and designed.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defects that the central tube of the water purifier in the prior art needs to increase the number of filter element stages and increase the volume if the filtering effect needs to be improved due to single function, so as to provide a central tube for a roll membrane, a roll membrane module and a water purification system.
The present invention provides a center tube for a rolled membrane, wherein:
the central tube is of a tube structure, the tube structure comprises an inner wall, an outer wall and a cavity located on the inner side of the inner wall, and the central tube is made of filter materials capable of allowing fluid to pass through so as to allow the fluid to flow from the inner wall to the outer wall or flow from the outer wall to the inner wall to reach the cavity.
Preferably, the first and second electrodes are formed of a metal,
the filter material that can allow the fluid to pass through includes: at least one of a carbon material, a polypropylene pp material, and a ceramic material.
Preferably, the first and second electrodes are formed of a metal,
the central tube is of a cylindrical carbon rod structure consisting of the carbon material; or the central pipe is of a cylindrical PP structure made of the polypropylene PP material; or the central tube is of a cylindrical ceramic tube structure made of the ceramic material.
The invention also provides a spiral wound membrane module, which comprises the central tube for the spiral wound membrane as described in any one of the preceding items, and a spiral wound membrane wound around the periphery of the central tube, wherein the spiral wound membrane can allow water to pass through and filter the water.
Preferably, the first and second electrodes are formed of a metal,
the first end cover is arranged at one axial end of the central pipe and can seal the axial end of the central pipe; and/or the presence of a gas in the gas,
the water outlet joint is arranged on the radial inner side of the second end cover so as to allow water in the central pipe to flow out of the water outlet joint.
Preferably, the first and second electrodes are formed of a metal,
first end cover is including being located radial outside and along the first extension arm of axial direction extension and being located radial inboard and along the second extension arm of axial direction extension, first extension arm with it is right to form between the second extension arm the space that the card was established is carried out to the inner wall and the outer wall of center tube.
Preferably, the first and second electrodes are formed of a metal,
the second extension arm is attached to and clamped on the inner wall of one axial end of the central tube; the outer wall of the central tube is provided with a first step at the position of one axial end, and the first extension arm is clamped with the first step so that the outer peripheral surface of the first extension arm is flush with the outer peripheral surface of the central tube.
Preferably, the first and second electrodes are formed of a metal,
a film rolling clamping groove for rolling the film is formed in the center of the first end cover in the axial direction of the central tube; and/or a first fixing rib is further axially arranged between the first extension arm and the second extension arm of the first end cover in an extending manner, a fixing groove is also axially and concavely arranged at one axial end of the central tube, and the first fixing rib and the fixing groove can be clamped and positioned; and/or the direction of the first end cover opposite to the extending direction of the first extending arm and the second extending arm is also convexly provided with at least one first limiting rib.
Preferably, the first and second electrodes are formed of a metal,
the second end cover is including being located radial outside and along the third extension arm that axial direction extends and being located radial inboard and along the fourth extension arm that axial direction extends, the third extension arm with form between the fourth extension arm and can be right the center tube the space that the card was established is carried out to the inner wall and the outer wall of the axial other end.
Preferably, the first and second electrodes are formed of a metal,
the fourth extension arm is attached and clamped on the inner wall of the other end of the central tube in the axial direction; and/or a second step is further formed at the position of the other end of the central tube in the axial direction, and the third extension arm is clamped at the outer peripheral wall of the second step, so that the outer peripheral surface of the third extension arm is flush with the outer peripheral surface of the central tube.
Preferably, the first and second electrodes are formed of a metal,
a second fixing rib is further axially arranged between the third extension arm and the fourth extension arm of the second end cover in an extending manner, a fixing groove is further axially and concavely arranged at the other axial end of the central tube, and the second fixing rib can be clamped and limited with the fixing groove; and/or a second limiting rib is arranged on the inner side of the fourth extension arm of the second end cover in a radially protruding mode, and the second limiting rib and the water outlet connector can limit and/or position.
Preferably, the first and second electrodes are formed of a metal,
the connecting part between the first end cover and the central pipe is also connected through bonding; and/or the joint part between the second end cover and the central pipe is also connected by bonding; and/or the roll film is wound at one axial end of the central tube and is arranged at the periphery of the first end cover; and/or the roll film is wound and arranged at the outer periphery of the second end cover at the other axial end of the central pipe.
Preferably, the first and second electrodes are formed of a metal,
the roll-type membrane comprises a roll-type membrane, a glue line, a water production separation net and a water inlet separation net, wherein the roll-type membrane comprises a separation layer and a non-separation layer, the roll-type membrane is folded at the separation layer, the water inlet separation net is placed in the folding position of the roll-type membrane, one surface of the non-separation layer is overlapped with the water production separation net, and the glue line is arranged on the inner peripheral side of the roll-type membrane and at a position opposite to the first end cover and/or the second end cover.
The invention also provides a water purification system comprising the spiral wound membrane module of any one of the preceding claims.
The central tube, the spiral-wound membrane module and the water purification system for the spiral-wound membrane provided by the invention have the following beneficial effects:
1. according to the invention, the central tube of the roll-type membrane is made of the filter material which can allow fluid to pass through, so that water can flow through the central tube made of the filter material, and a primary filtering effect is formed on water, so that compared with a structure in the prior art that the filter effect is improved and the filter element technology is required to be added, the primary filtering effect can be formed through the central tube, the integration of the structural functions of the central tube is realized, the central tube can support the roll-type membrane, collect produced water and realize the filtering effect, the increase of the volume of the filter element is effectively reduced, and the effective reduction of the volume of the whole machine is facilitated;
2. the invention can abandon the plastic piece central tube used by the existing roll type membrane, avoid the use of the plastic piece central tube of the existing roll type membrane element, and realize that one membrane element has two-stage filtering function; the carbonaceous central tube is utilized, so that the subsequent reuse of the taste filter element can be avoided, and the membrane element integrates two-stage filtering functions of a fine filtering filter element and a rear taste filter element; the carbonaceous central tube does not have macroscopic macropore, and its surface is covered with structural micropore, compares in the visual macroporous central tube of traditional working of plastics, and roll-type diaphragm produced water is collected more easily.
Drawings
FIG. 1 is a schematic sectional front view of a rolled membrane module of the present invention having a center tube;
FIG. 2a is a cross-sectional structural view of the base pipe of FIG. 1;
FIG. 2b is a left side view block diagram of the center tube of FIG. 2 a;
FIG. 3a is a cross-sectional structural view of the first end cap of FIG. 1;
FIG. 3b is a left side view block diagram of the first endcap of FIG. 3 a;
FIG. 4 is a cross-sectional structural view of the second end cap of FIG. 1;
fig. 5 is a schematic view of a rolled membrane deployment structure of a rolled membrane module with a central tube according to the present invention.
The reference numbers in the figures denote:
101. a first end cap; 101a, a film rolling clamping groove; 101b, a first fixing rib; 101c, a first limiting rib; 101d, a first extension arm; 101e, a second extension arm; 102. a central tube; 102a, a first step; 102b, a second step; 102c, a fixing groove; 102d, an inner wall; 102e, an outer wall; 102f, a cavity; 103. rolling the membrane; 104. a second end cap; 104a and a second limiting rib; 104b, second fixing ribs; 104c, a third extension arm; 104d, a fourth extension arm; 105. a water outlet joint; 201. rolling the membrane; 202. glue lines; 203. produce water and separate the net.
Detailed Description
As shown in fig. 1-5, the present invention provides a central tube for a rolled membrane, wherein the central tube 102 is a cylindrical structure, the cylindrical structure comprises an inner wall 102d and an outer wall 102e, and a cavity 102f located inside the inner wall 102d, and the central tube 102 is made of a filter material capable of allowing fluid to pass through (mainly permeable to water), so as to allow fluid to pass from the inner wall 102d to the outer wall 102e, or from the outer wall 102e to the inner wall 102d to reach the cavity 102 f.
According to the invention, the central tube of the roll-type membrane is made of the filter material which can allow fluid to pass through, so that water can flow through the central tube made of the filter material, and a primary filtering effect is formed on water, so that compared with a structure in the prior art that the filter effect is improved and the filter element technology needs to be added, the primary filtering effect can be formed through the central tube, the integration of the structural functions of the central tube is realized, the central tube can support the roll-type membrane and collect produced water, and can also realize the filtering effect, the increase of the volume of the filter element is effectively reduced, and the effective reduction of the volume of the whole machine is facilitated.
The existing central tube is a plastic central tube, only the center of the tube is provided with a hole, and other places are closed, so that water produced by the membrane in the non-hole area needs to flow into the hole area along the wall, and the flow path is long; and the membrane with the hole area directly flows out of the membrane hole, and the flow path is short. And the carbon rod is used as the central tube, and because the surface of the carbon rod is distributed with the uniform structural microporous structure, the produced water of the membrane contacted with the carbon rod can be led out into the cavity in time. The post-positioned carbon rod filter element is made into a structural form capable of winding the RO membrane, so that the RO membrane and the post-positioned filter element can be combined, and the one-core two-stage purification function is realized.
Preferably, the first and second electrodes are formed of a metal,
the filter material that can allow the fluid to pass through includes: at least one of a carbon material, a polypropylene pp material, and a ceramic material. The filter material is the preferred material of the filter material, can allow water to effectively pass through, can filter the water passing through the filter material, can form a primary filtering effect while realizing the supporting function of the central tube, overcomes the defect of volume increase caused by the increase of the number of filter element stages, reduces the volume and saves the cost.
Preferably, the first and second electrodes are formed of a metal,
the central tube 102 is a cylindrical carbon rod structure composed of the carbon material; or, the central tube 102 is a cylindrical PP structure made of the polypropylene PP material; alternatively, the central tube 102 is a cylindrical ceramic tube made of the ceramic material. This is the preferred form of the filter structure of the present invention, such as carbon rods, PP cylinders, and ceramic tubes.
The filter material capable of allowing fluid to pass through can comprise: carbon rods, cylindrical polypropylene pp material filter materials, ceramic tubes and the like are preferably used for improving the taste of carbon as the material of the central tube of the roll-type membrane element, so that the plastic central tube used by the existing roll-type membrane can be abandoned, the use of the plastic central tube of the existing roll-type membrane element is avoided, and one membrane element can have two-stage filtering functions; the carbonaceous central tube is utilized, so that the subsequent reuse of the taste filter element can be avoided, and the membrane element integrates two-stage filtering functions of a fine filtering filter element and a rear taste filter element; the carbon central tube has no macroscopic macropore, and the surface of the carbon central tube is fully distributed with structural micropores, so that the water produced by the rolled diaphragm is easier to collect compared with the central tube with the macroscopic macropore of the traditional plastic part; the PP cylindrical central tube can effectively remove various particle impurities in the filtered liquid, has a multilayer depth structure, large pollutant carrying capacity, large filtering flow, small pressure difference, no chemical adhesive, higher sanitation, higher safety, acid resistance, alkali resistance, organic solution and oil resistance, good chemical stability and integration of surface, deep layer and coarse and fine filtering; has the characteristics of large flow, corrosion resistance, high pressure resistance, low cost and the like. Used for blocking large granular substances such as rust, silt, worm eggs and the like in water. The ceramic tube-shape center tube can filter, antibiotic and activation treatment drinking water, harmful removal chlorine residue and suspended pollutant, organic chemical substance, colour and peculiar smell, can filter out the drinking water that reaches certain drinking standard through using this filter core.
The invention also provides a spiral wound membrane module, which comprises the central tube for spiral wound membranes, and also comprises a spiral wound membrane 103 wound around the periphery of the central tube 102, wherein the spiral wound membrane 103 can allow water to pass through and filter the water. The roll-type membrane component provided by the invention is rolled by the roll-type membrane by utilizing the central tube (filtering material) with a new structural form, so that the prepared roll-type membrane component has two-stage filtering functions at the same time, water can flow through the central tube made of the filtering material, and a first-stage filtering effect is formed on the water, so that compared with the structure in the prior art that the filtering effect is improved and the filtering core technology is required to be added, the first-stage filtering effect can be formed through the central tube, the integration of the structural function of the central tube is realized, the roll-type membrane can be supported, the produced water can be collected, the filtering effect can also be realized, the increase of the volume of the filter core is effectively reduced, and the.
Preferably, the first and second electrodes are formed of a metal,
a first end cap 101 disposed at one axial end of the center tube 102, the first end cap being capable of sealing the one axial end of the center tube 102; and/or the presence of a gas in the gas,
the water-saving pipe is characterized by further comprising a second end cover 104 clamped at the other axial end of the central pipe 102, wherein a water outlet joint 105 is further connected and arranged on the radial inner side of the second end cover 104 to allow water in the interior of the central pipe 102 to flow out of the water outlet joint 105.
The structural form of the first end cover at one axial end of the central tube and the structural form of the second end cover at the other axial end of the central tube can form a sealing effect on the axial end of the central tube through the first end cover, so that water at the end permeates from the end face of the roll-type membrane 103 and then enters the central tube and the cavity to realize the effect of secondary filtration, the water flowing out through the roll-type membrane 103 is concentrated water, and the water flowing out through the cavity in the central tube is pure water, as shown in fig. 1, the clamping effect and the sealing effect can be performed on the axial other end of the central tube through the second end cover, so that the water can only flow out from a water outlet joint in the central tube (pure water) or flow out from the lower end of the roll-type membrane.
Preferably, the first and second electrodes are formed of a metal,
the first end cap 101 includes a first extension arm 101d located at a radial outer side and extending along an axial direction and a second extension arm 101e located at a radial inner side and extending along the axial direction, and a space capable of clamping an inner wall and an outer wall of the center tube 102 is formed between the first extension arm 101d and the second extension arm 101 e. This is a further preferred form of construction of the first end cap of the invention, which provides a snap-fit connection with the axially one end of the central tube, facilitating assembly and location, by virtue of the provision of the first and second extension arms.
Preferably, the first and second electrodes are formed of a metal,
the second extension arm 101e is attached to and clamped on the inner wall of the axial end of the central tube 102; the outer wall of the center tube 102 is further formed with a first step 102a at a position of one end in the axial direction, and the first extension arm 101d is engaged with the first step 102a such that the outer circumferential surface of the first extension arm 101d is flush with the outer circumferential surface of the center tube 102. The first extension arm and the second extension arm are respectively connected with the inner wall and the outer wall of the central tube in a matching mode, so that the central tube can be effectively clamped, and meanwhile, the outer peripheral surface of the central tube can be flush with the outer peripheral surface of the first extension arm, and the roll-type membrane can be conveniently wound on the outer peripheral surface in a rolling mode.
Preferably, the first and second electrodes are formed of a metal,
a film winding clamping groove 101a for winding the film is further formed in the center position of the first end cover 101 in the axial direction of the central tube 102; and/or a first fixing rib 101b is further axially arranged between the first extension arm 101d and the second extension arm 101e of the first end cover 101 in an extending manner, a fixing groove 102c is also axially and concavely arranged at one axial end of the central tube 102, and the first fixing rib 101b and the fixing groove 102c can form a clamping limit to clamp and fix the end surface of the axial end of the central tube 102; and/or at least one first limiting rib 101c is further convexly arranged in the direction of the first end cover 101 opposite to the extending direction of the first extending arm 101d and the second extending arm 101 e.
The first end cover and the corresponding part of the central tube are provided with a further preferable structural form, and the film rolling clamping groove can allow a shaft of a film rolling machine to be inserted into the film rolling clamping groove when the film is rolled, so that the central tube is driven to rotate, and the film rolling effect of the rolled film is realized; the first fixing ribs and the fixing grooves arranged on the end face of the central tube can form clamping fit between the first fixing ribs and the central tube, and a positioning or limiting effect can be formed when the first end cover and the central tube are assembled, so that the assembling effect is improved; can make first end cover upwards protrusion form protruding structure through first spacing rib to make can pass through water between the arch, make from can normally reaching the up end of roll formula membrane and down flow, guaranteed that normal water flows and flows through.
Preferably, the first and second electrodes are formed of a metal,
the second end cap 104 includes a third extension arm 104c located at the radial outer side and extending along the axial direction and a fourth extension arm 104d located at the radial inner side and extending along the axial direction, and a space capable of clamping the inner wall and the outer wall of the other axial end of the center tube 102 is formed between the third extension arm 104c and the fourth extension arm 104 d. This is a further preferred form of construction of the second end cap of the invention, which allows for snap-fit connection, ease of assembly and location with the axially opposite end of the central tube by the provision of the third and fourth extension arms.
Preferably, the first and second electrodes are formed of a metal,
the fourth extension arm 104d is attached to and clamped on the inner wall of the other axial end of the central tube; and/or a second step 102b is further formed on the outer wall of the central tube 102 at the other axial end, and the third extension arm 104c is clamped on the outer circumferential wall of the second step 102b, so that the outer circumferential surface of the third extension arm 104c is flush with the outer circumferential surface of the central tube 102. The third extension arm and the fourth extension arm are respectively matched and connected with the inner wall and the outer wall of the central tube, so that the central tube can be effectively clamped and simultaneously the outer peripheral surface of the central tube and the outer peripheral surface of the third extension arm can be ensured to be flush, and the roll-type membrane can be conveniently wound on the outer peripheral surface in a roll mode.
Preferably, the first and second electrodes are formed of a metal,
a second fixing rib 104b is further axially arranged between the third extension arm 104c and the fourth extension arm 104d of the second end cover 104 in an extending manner, a fixing groove 102c is also axially and concavely arranged at the other axial end of the central tube 102, and the second fixing rib 104b and the fixing groove 102c can form a clamping limit to clamp and fix an end face of the other axial end of the central tube 102; and/or a second limiting rib 104a is further arranged on the inner side of the fourth extending arm 104d of the second end cover 104 in a radially protruding manner, and the second limiting rib 104a can be limited and/or positioned with the water outlet joint 105.
The second end cover and the corresponding part of the central tube are provided with further optimized structural forms, the second fixing ribs and the fixing grooves arranged on the end face of the central tube can form clamping fit between the second fixing ribs and the fixing grooves, a positioning or limiting effect can be formed when the first end cover and the central tube are assembled, and the assembling effect is improved; can make it form limiting displacement to water connectors through the spacing rib of second, form location assembly, improve the assembly effect.
Preferably, the first and second electrodes are formed of a metal,
the joint part between the first end cover 101 and the central tube 102 is also connected by bonding; and/or the joint between the second end cover 104 and the central tube 102 is also connected by bonding; and/or the roll film 103 is wound around the outer circumference of the first end cap 101 at the axial end of the center tube 102; and/or the roll film 103 is wound around the outer circumference of the second end cap 104 at the other axial end of the center tube 102.
First end cover, second end cover respectively with through adhesive connection between the center tube, improved the firm in connection nature between end cover and the center tube, improved sealing strength, the winding of roll up formula membrane can improve winding effect and sealed effect on the end cover. The carbonaceous central pipe has the following assembly form of parts: the first end cap 101 and the second end cap 104 are fixedly connected with the corresponding steps at the two ends of the carbon rod through glue. The water outlet joint 105 is directly arranged in the second end cover 104 after the roll-up membrane is rolled up, and is used for guiding pure water.
Preferably, the first and second electrodes are formed of a metal,
the roll type membrane 103 comprises a roll type membrane 201, a glue line 202, a water production separation net 203 and a water inlet separation net, the roll type membrane 201 comprises a separation layer and a non-separation layer, the roll type membrane 201 is folded at the separation layer, the water inlet separation net is placed in the folded position of the roll type membrane, one surface of the non-separation layer and the water production separation net 203 are overlapped, and the glue line 202 is arranged on the inner peripheral side of the roll type membrane 103 and at a position opposite to the first end cover 101 and/or the second end cover 104. The spiral membrane is a preferred structural form of the spiral membrane, the water production separation net is wound on the periphery of the central pipe, the spiral membrane is wound on the periphery of the water production separation net, and the glue line is arranged at the corresponding position of the end cover, so that the membrane and the end cover can be connected in a sealing mode through glue.
When the carbonaceous central tube is used for preparing the roll-up membrane, the schematic diagram of the roll-up membrane is shown in figure 5.
Roll up formula diaphragm 201 evenly distributed is close to the end cover position at both ends at carbonaceous center tube, produce water and separate net 203 and roll up formula diaphragm 201 and overlap and put, the rubber thread is beaten and is being close to roll up formula diaphragm 201 and produce water and separate net 203 border position but not with the edge coincidence, need keep the distance with the border line, the rubber thread 202 needs to be beaten on first end cover 101 and second end cover 104 simultaneously, its effect is sealed for realizing roll formula membrane element with the help of the end cover, because if beat on carbonaceous center tube, because it is porous structure, can not realize sealedly.
The invention also provides a water purification system comprising the spiral wound membrane module of any one of the preceding claims.
According to the invention, the central tube of the water purifier is made of the filter material which can allow fluid to pass through, so that water can flow through the central tube made of the filter material, and a primary filtering effect is formed on water, so that compared with a structure in the prior art that the filter effect is improved and the filter element technology needs to be added, the primary filtering effect can be formed through the central tube, the integration of the structural function of the central tube is realized, the central tube can support a roll-type membrane and collect produced water, and can also realize the filtering effect, the increase of the volume of the filter element is effectively reduced, and the effective reduction of the volume of the whole machine is facilitated;
the invention can abandon the plastic piece central tube used by the existing roll type membrane, avoid the use of the plastic piece central tube of the existing roll type membrane element, and realize that one membrane element has two-stage filtering function; the carbonaceous central tube is utilized, so that the subsequent reuse of the taste filter element can be avoided, and the membrane element integrates two-stage filtering functions of a fine filtering filter element and a rear taste filter element; the carbonaceous central tube does not have macroscopic macropore, and its surface is covered with structural micropore, compares in the visual macroporous central tube of traditional working of plastics, and roll-type diaphragm produced water is collected more easily.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (14)
1. A center tube for a wound membrane module, characterized in that:
the central tube (102) is a cylindrical structure comprising an inner wall (102d) and an outer wall (102e), and a cavity (102f) inside the inner wall (102d), and the central tube (102) is made of a filter material capable of allowing fluid to pass through, so as to allow fluid to pass from the inner wall (102d) to the outer wall (102e), or from the outer wall (102e) to the inner wall (102d) to reach the cavity (102 f).
2. The base pipe of claim 1, wherein:
the filter material that can allow the fluid to pass through includes: at least one of a carbon material, a polypropylene pp material, and a ceramic material.
3. The base pipe of claim 2, wherein:
the central tube (102) is of a cylindrical carbon rod structure made of the carbon material; or the central pipe (102) is of a cylindrical PP structure made of the polypropylene PP material; or the central tube (102) is a cylindrical ceramic tube structure made of the ceramic material.
4. A spiral wound membrane module, characterized in that:
the central tube for rolled module membranes according to any of claims 1-3, further comprising a rolled membrane (103) wound around the periphery of the central tube (102), the rolled membrane (103) being capable of allowing water to pass through and filtering water.
5. The rolled membrane module according to claim 4, characterized in that:
further comprising a first end cap (101) arranged at an axial end of the central tube (102), said first end cap being capable of sealing said axial end of the central tube (102); and/or the presence of a gas in the gas,
the water-saving pipe is characterized by further comprising a second end cover (104) arranged at the other axial end of the central pipe (102), and a water outlet joint (105) is further connected and arranged on the radial inner side of the second end cover (104) to allow water in the central pipe (102) to flow out of the water outlet joint (105).
6. The rolled membrane module according to claim 5, characterized in that:
the first end cover (101) comprises a first extension arm (101d) located on the radial outer side and extending along the axial direction and a second extension arm (101e) located on the radial inner side and extending along the axial direction, and a space capable of clamping the inner wall and the outer wall of the central pipe (102) is formed between the first extension arm (101d) and the second extension arm (101 e).
7. The rolled membrane module according to claim 6, characterized in that:
the second extension arm (101e) is attached to and clamped on the inner wall of one axial end of the central pipe (102); the outer wall of the central tube (102) is further formed with a first step (102a) at a position of one end in the axial direction, and the first extension arm (101d) is engaged with the first step (102a) so that the outer peripheral surface of the first extension arm (101d) is flush with the outer peripheral surface of the central tube (102).
8. The membrane module of claim 6 or 7, wherein:
a film rolling clamping groove (101a) for rolling the film is formed in the center position of the first end cover (101) towards the axial direction of the central pipe (102); and/or a first fixing rib (101b) is arranged between the first extension arm (101d) and the second extension arm (101e) of the first end cover (101) in an axially extending manner, a fixing groove (102c) is also arranged at one axial end of the central tube (102) in an axially recessed manner, and a clamping limit can be formed between the first fixing rib (101b) and the fixing groove (102 c); and/or at least one first limiting rib (101c) is convexly arranged in the direction of the first end cover (101) opposite to the extending direction of the first extending arm (101d) and the second extending arm (101 e).
9. The rolled membrane module according to any one of claims 5-8, characterized in that:
the second end cover (104) comprises a third extension arm (104c) located on the radial outer side and extending along the axial direction and a fourth extension arm (104d) located on the radial inner side and extending along the axial direction, and a space capable of clamping the inner wall and the outer wall of the other end of the central tube (102) in the axial direction is formed between the third extension arm (104c) and the fourth extension arm (104 d).
10. The membrane module of claim 9, wherein:
the fourth extension arm (104d) is attached and clamped on the inner wall of the other end of the central pipe in the axial direction; and/or a second step (102b) is further formed on the outer wall of the central tube (102) at the position of the other end in the axial direction, and the third extension arm (104c) is clamped at the outer peripheral wall of the second step (102b) so that the outer peripheral surface of the third extension arm (104c) is flush with the outer peripheral surface of the central tube (102).
11. The membrane module of claim 9 or 10, wherein:
a second fixing rib (104b) is further axially arranged between the third extension arm (104c) and the fourth extension arm (104d) of the second end cover (104) in an extending manner, a fixing groove (102c) is further axially and concavely arranged at the other axial end of the central tube (102), and the second fixing rib (104b) and the fixing groove (102c) can form clamping limiting; and/or a second limiting rib (104a) is further arranged on the inner side of the fourth extension arm (104d) of the second end cover (104) in a protruding mode in the radial direction, and the second limiting rib (104a) can limit and/or position the water outlet joint (105).
12. The rolled membrane module according to any one of claims 5-11, characterized in that:
the joint part between the first end cover (101) and the central pipe (102) is also connected through bonding; and/or the joint part between the second end cover (104) and the central pipe (102) is also connected by bonding; and/or the roll film (103) is wound at one axial end of the central pipe (102) and arranged at the periphery of the first end cover (101); and/or the roll film (103) is wound and arranged at the outer periphery of the second end cover (104) at the other axial end of the central pipe (102).
13. The rolled membrane module according to claim 12, characterized in that:
the roll type membrane (103) comprises a roll type membrane sheet (201), a glue line (202), a water production separation net (203) and a water inlet separation net, wherein the roll type membrane sheet (201) comprises a separation layer and a non-separation layer, the roll type membrane sheet (201) is folded at the separation layer in half, the water inlet separation net is placed in the folded position of the roll type membrane sheet, one face of the non-separation layer and the water production separation net (203) are overlapped, and the glue line (202) is arranged on the inner peripheral side of the roll type membrane (103) and at a position opposite to the first end cover (101) and/or the second end cover (104).
14. A water purification system, its characterized in that: comprising a rolled membrane module according to any one of claims 5-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2020/128100 WO2021164335A1 (en) | 2019-08-02 | 2020-11-11 | Central tube, wound-type membrane assembly, composite filter cartridge assembly, and water purification system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910713454 | 2019-08-02 | ||
| CN2019107134546 | 2019-08-02 |
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| CN202010103186.9A Pending CN111229056A (en) | 2019-08-02 | 2020-02-19 | Compound filter element group spare and water purification system |
| CN202010105862.6A Active CN112295417B (en) | 2019-08-02 | 2020-02-19 | A center tube, roll-type membrane module and water purification system for roll-type membrane |
| CN202020187693.0U Active CN212142159U (en) | 2019-08-02 | 2020-02-19 | Compound filter element group spare and water purification system |
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| CN202020186748.6U Active CN212091725U (en) | 2019-08-02 | 2020-02-19 | Compound filter element group spare and water purification system |
| CN202010105864.5A Pending CN111185102A (en) | 2019-08-02 | 2020-02-19 | Spiral wound membrane module and water purification system |
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| CN202010103189.2A Pending CN111185097A (en) | 2019-08-02 | 2020-02-19 | Roll up formula membrane module, compound filter element group spare and water purification system |
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| CN202020186747.1U Active CN212091724U (en) | 2019-08-02 | 2020-02-19 | Water purification unit with filter element group spare |
| CN202010105792.4A Pending CN111185101A (en) | 2019-08-02 | 2020-02-19 | Water purification unit with filter element group spare |
| CN202020186723.6U Active CN211886279U (en) | 2019-08-02 | 2020-02-19 | Roll up formula membrane module, compound filter element group spare and water purification system |
| CN202010103364.8A Pending CN111185099A (en) | 2019-08-02 | 2020-02-19 | Compound filter element group spare and water purification system |
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| CN202010103366.7A Pending CN111185100A (en) | 2019-08-02 | 2020-02-19 | Central tube for roll type membrane, roll type membrane component and water purification system |
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| CN202010103184.XA Pending CN111185096A (en) | 2019-08-02 | 2020-02-19 | Compound filter element group spare and water purification system |
| CN202020191911.8U Active CN211886284U (en) | 2019-08-02 | 2020-02-19 | Purifier filter core center tube, spiral wound membrane module and compound filter core subassembly |
| CN202020187694.5U Active CN211886282U (en) | 2019-08-02 | 2020-02-19 | Spiral wound membrane module and water purification system |
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| CN202010103186.9A Pending CN111229056A (en) | 2019-08-02 | 2020-02-19 | Compound filter element group spare and water purification system |
| CN202010105862.6A Active CN112295417B (en) | 2019-08-02 | 2020-02-19 | A center tube, roll-type membrane module and water purification system for roll-type membrane |
| CN202020187693.0U Active CN212142159U (en) | 2019-08-02 | 2020-02-19 | Compound filter element group spare and water purification system |
| CN202010103151.5A Pending CN111229054A (en) | 2019-08-02 | 2020-02-19 | Compound filter element group spare and water purification system |
| CN202020186748.6U Active CN212091725U (en) | 2019-08-02 | 2020-02-19 | Compound filter element group spare and water purification system |
| CN202010105864.5A Pending CN111185102A (en) | 2019-08-02 | 2020-02-19 | Spiral wound membrane module and water purification system |
| CN202020186721.7U Active CN211886277U (en) | 2019-08-02 | 2020-02-19 | Compound filter element group spare and water purification system |
| CN202010103189.2A Pending CN111185097A (en) | 2019-08-02 | 2020-02-19 | Roll up formula membrane module, compound filter element group spare and water purification system |
| CN202010103163.8A Pending CN111229055A (en) | 2019-08-02 | 2020-02-19 | Compound filter element group spare and water purification system |
| CN202020186724.0U Active CN211886280U (en) | 2019-08-02 | 2020-02-19 | Compound filter element group spare and water purification system |
| CN202020186747.1U Active CN212091724U (en) | 2019-08-02 | 2020-02-19 | Water purification unit with filter element group spare |
| CN202010105792.4A Pending CN111185101A (en) | 2019-08-02 | 2020-02-19 | Water purification unit with filter element group spare |
| CN202020186723.6U Active CN211886279U (en) | 2019-08-02 | 2020-02-19 | Roll up formula membrane module, compound filter element group spare and water purification system |
| CN202010103364.8A Pending CN111185099A (en) | 2019-08-02 | 2020-02-19 | Compound filter element group spare and water purification system |
| CN202020191957.XU Active CN211886285U (en) | 2019-08-02 | 2020-02-19 | Spiral wound membrane module and water purification system |
| CN202020186746.7U Active CN211886281U (en) | 2019-08-02 | 2020-02-19 | Compound filter element group spare and water purification system |
| CN202010105797.7A Pending CN111318175A (en) | 2019-08-02 | 2020-02-19 | Spiral wound membrane module and water purification system |
| CN202010103369.0A Pending CN111229057A (en) | 2019-08-02 | 2020-02-19 | Compound filter element group spare and water purification system |
| CN202020186722.1U Active CN211886278U (en) | 2019-08-02 | 2020-02-19 | Compound filter element group spare and water purification system |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020187695.XU Active CN211886283U (en) | 2019-08-02 | 2020-02-19 | Central tube for roll type membrane, roll type membrane component and water purification system |
| CN202010103184.XA Pending CN111185096A (en) | 2019-08-02 | 2020-02-19 | Compound filter element group spare and water purification system |
| CN202020191911.8U Active CN211886284U (en) | 2019-08-02 | 2020-02-19 | Purifier filter core center tube, spiral wound membrane module and compound filter core subassembly |
| CN202020187694.5U Active CN211886282U (en) | 2019-08-02 | 2020-02-19 | Spiral wound membrane module and water purification system |
Country Status (2)
| Country | Link |
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| CN (25) | CN111185098A (en) |
| WO (1) | WO2021164335A1 (en) |
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| WO2021164335A1 (en) * | 2019-08-02 | 2021-08-26 | 珠海格力电器股份有限公司 | Central tube, wound-type membrane assembly, composite filter cartridge assembly, and water purification system |
| CN114646145A (en) * | 2022-04-13 | 2022-06-21 | 美的集团武汉制冷设备有限公司 | Recovery and distribution system for air conditioner and air conditioner |
| CN115970498A (en) * | 2023-01-18 | 2023-04-18 | 珠海格力电器股份有限公司 | Method for manufacturing stage type filter element |
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| CN112159239B (en) * | 2020-09-28 | 2022-07-15 | 景德镇陶瓷大学 | Preparation method of roll-type ceramic membrane support and ceramic membrane product thereof |
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-
2020
- 2020-02-19 CN CN202010103362.9A patent/CN111185098A/en active Pending
- 2020-02-19 CN CN202010103186.9A patent/CN111229056A/en active Pending
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021164335A1 (en) * | 2019-08-02 | 2021-08-26 | 珠海格力电器股份有限公司 | Central tube, wound-type membrane assembly, composite filter cartridge assembly, and water purification system |
| CN114646145A (en) * | 2022-04-13 | 2022-06-21 | 美的集团武汉制冷设备有限公司 | Recovery and distribution system for air conditioner and air conditioner |
| CN114646145B (en) * | 2022-04-13 | 2024-04-23 | 美的集团武汉制冷设备有限公司 | Recovery distribution system for air conditioner and air conditioner |
| CN115970498A (en) * | 2023-01-18 | 2023-04-18 | 珠海格力电器股份有限公司 | Method for manufacturing stage type filter element |
Also Published As
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| CN111185102A (en) | 2020-05-22 |
| CN111185099A (en) | 2020-05-22 |
| CN212091725U (en) | 2020-12-08 |
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| CN111229056A (en) | 2020-06-05 |
| WO2021164335A1 (en) | 2021-08-26 |
| CN211886279U (en) | 2020-11-10 |
| CN111185096A (en) | 2020-05-22 |
| CN211886284U (en) | 2020-11-10 |
| CN111229054A (en) | 2020-06-05 |
| CN211886277U (en) | 2020-11-10 |
| CN211886285U (en) | 2020-11-10 |
| CN211886278U (en) | 2020-11-10 |
| CN111229057A (en) | 2020-06-05 |
| CN212091724U (en) | 2020-12-08 |
| CN111185101A (en) | 2020-05-22 |
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