CN1631548A - Self cleaning type internal rotation flow membrane separating device - Google Patents
Self cleaning type internal rotation flow membrane separating device Download PDFInfo
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- CN1631548A CN1631548A CN 200510020105 CN200510020105A CN1631548A CN 1631548 A CN1631548 A CN 1631548A CN 200510020105 CN200510020105 CN 200510020105 CN 200510020105 A CN200510020105 A CN 200510020105A CN 1631548 A CN1631548 A CN 1631548A
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Abstract
The invention unfurls a kind of separation equipment. In the shell is film separating unit tube, in front of the tube is the material of self cleaning and the equipment of the material to be separated. In the tube there is the entrance equipment of the liquid to be separated, and the flowing tube to make the liquid out and the bottom equipment to make the self material out. The liquid and the self cleaning material flow out from the flowing tube, permeating liquid goes into the film, and then goes out from the exit. Self cleaning material can move spirally along the surface of the separating film, cleaning the surface of the film continually. The invention has the advantages of proper construction, simple operation, and high effect to separate, so it can be used in industry, people and military.
Description
One, technical field
The present invention relates to fluid purifying apparatus, particularly the fluid purifying apparatus of micro-filtration or ultrafiltration.More particularly, the present invention relates to by being used for the fluid evolution equipment that film separation unit pipe that fluid separates constitutes.
Two, technical background
The circular pipe type membrane separation device has that flow regime is good, flow velocity is controlled easily, installing/dismounting, change film and the maintenance all more convenient, can handle the solution that contains suspended solid, mechanical removal impurity ratio is easier to, suitable flow regime can alleviate advantages such as concentration polarization and pollution, therefore, have wide practical use in fields such as micro-filtration and ultrafiltration.Yet data shows, influencing the one of the main reasons that membrane separation device widely applies in practice is the pollution problem of film.The pollution of film not only makes the permeation flux of film descend, and makes film generation deterioration, causes shorten the service life of film.Therefore, adopt appropriate measures and alleviate this influence and be very important.
It is the problem that the film separation field receives much concern that concentration polarization and film pollute, and the existing enhancements that addresses this problem comprises to add physical field, to increase the unstability, film and the film structural component that flow and move to strengthen and separate.Add physical field and comprise electric field, ultrasound field and microwave field, can make SS away from the film surface, thereby alleviate concentration polarization and film pollution, still, its shortcoming is the general more complicated of impressed field servicing unit, uses the restriction that also is subjected to solid property.The measure that increases flow instability comprises adopts the pressure fluctuation charging, at film surface coil curved channel, add stirring vane on the film surface, in inner pressed film pipe, baton round, spiral component or silk screen are installed, add spiral component or the like outside External Pressure Type film pipe, these measures have reduced the ability of solids to the face migration, can improve the concentration polarization phenomenon in varying degrees, but, little to the improvement that film pollutes.The enhancements of film or film structural component motion comprises rotating circular disk and tubular dynamic membrane device, this class film device utilizes the high speed rotation of face to make more violent turbulence and/or the secondary flow of fluid generation stop the deposition of solid particle at face, alleviated concentration polarization and film and polluted, infiltration rate is improved greatly, yet, because this class membrane separation device is more complicated often, flow resistance is bigger in addition, and the pressure loss is many, and energy consumption is also higher, therefore, its application is restricted.
A kind of equipment that utilizes rotational flow to strengthen External Pressure Type tubular membrane infiltration rate has appearred in recent years, this membrane separation plant places tubular membrane in the round pressure housing with one heart, its introduction member has can make the sluice way of fluid around film pipe rotational flow, fluid enters in the annular space of film pipe and round pressure housing by sluice way, flow in the shape of a spiral and the generation secondary flow, the adjusting flow can be strengthened this class and flow.The advantage of this equipment is, each member is fixture, simple in structure, easy and simple to handle, maximum tangential, the radial and axial speed of secondary flow generally is approximately 2～6 times of the average axial flow velocity of film device annular space, secondary flows tangentially and axial migration, and has greatly washed away the film tube-surface with rotary tangential flow, has alleviated the pollution of particle to film.In addition, because the fluid rotational flow in the annular space makes bigger solids produce centrifugal force, to the inwall motion of round pressure housing, more difficult formation pollution layer.This structure is quite tangible to the invigoration effect that film separates, and under the same conditions, the steady-state permeation flux of this equipment is a general axis to 1.7～2.3 times of the steady state flux of cross flow separation equipment.But this equipment also has its weak point, and for being the membrane separation plant of motive force with pressure, the rotation of fluid can cause the pressure on film surface to reduce, thereby reduces the motive force of filtering.In addition, when inserting single film pipe in the container, flow regime helps strengthening and separates in the annular space, but when inserting many film pipes, and mobile between film pipe and container is difficult to the effect that reaches above-mentioned.Therefore, when needs increased filter area, the platform number that can only increase film device could keep strengthening effect, and this certainly will increase the complexity of outfit of equipment.
Interior cyclone-type tubular membrane separation equipment is that the tubular type diffusion barrier is encapsulated in the pressure housing, and its introduction member has the flow guiding structure and the overflow pipe that can make fluid rotational flow in the film pipe, and fluid enters in the film pipe by flow guiding structure, is cylindrical screw and flows.Spiral flow point inside spin stream and external spiral stream, adjusting flow can be strengthened this class and flow.Utilize rotary tangential flow can wash away the surface of film, can alleviate the pollution of particle to film, strengthen and separate, the rotation of fluid simultaneously can strengthen the pressure that separates motive force as film, further strengthens and separates.Under the same conditions, the initial flux of this equipment is a general axis to 2 times of the initial flux of cross flow separation equipment, and steady state flux has only 1.3 times, this explanation rotary tangential flow has played the effect of washing away really, but, because under the acting in conjunction of centrifugal force and osmotic flow, the trend of the oriented film surface deposition of solids, diffusion barrier is produced bigger pollution, and permeation flux descends very fast, and the working life of diffusion barrier is shorter, in order to keep enough permeation fluxs, need often to upgrade diffusion barrier, the operating cost height keeps in repair cumbersome.Therefore, the use value of this equipment awaits further research.
Three, summary of the invention
The deficiency that exists at the membrane separation plant of prior art, the purpose that with pressure is film separates the self-cleaning membrane separation plant of motive force disclosed by the invention is to solve following problem: under the condition that keeps sufficiently high permeation flux, improve the working life of the diffusion barrier of film separation unit pipe, reduce maintenance work, reduce operating cost.
Above-mentioned technical problem can achieve a solution by the self-cleaning membrane separation plant with following technical scheme.
In the housing of self cleaning type internal rotation flow membrane separating device, be provided with the film separation unit pipe, design has the osmotic fluid outlet on the housing wall, described unit pipes is provided with and makes fluid to be separated tangentially enter the imported equipments and parts of unit pipes along the unit pipes inwall, and the overflow pipe and the underflow opening parts that make underflow fluid and self-cleaning material deliverying unit pipe that make bleed-off fluid deliverying unit pipe, described underflow opening parts are arranged on the lower end of unit pipes, feed fluid come flow path direction enter imported equipments and parts before also be provided with the device that self-cleaning material and feed fluid to be separated are mixed mutually, described mixing arrangement setting is connected with imported equipments and parts by pipeline.
When being provided with the film separation unit pipe that is no less than two in the housing, be provided with the fluid distributor that communicates with it between the mixing arrangement that comes flow path direction at fluid to be separated and the imported equipments and parts, overflow direction outside overflow pipe is provided with the overflow gatherer that communicates with it, is provided with the underflow gatherer that communicates with it in the underflow direction of underflow opening parts.Described fluid distributor can be the space between housing cylindrical shell upper perforated plate and the upper cover tube sheet, and described overflow gatherer can be the space between upper cover tube sheet and the upper cover, and described underflow gatherer can be the space between housing cylindrical shell lower perforated plate and the low head.
In such scheme, for self-cleaning material is recycled, also be provided with self-cleaning material circulation and return pipeline, an end and the mixing arrangement of returning pipeline link, its other end when equipment has only a film separation unit pipe, links with the underflow opening parts, when equipment contains when being no less than two film separation unit pipes, link with the underflow gatherer.
In such scheme, for updating block pipe diffusion barrier, also design is useful on the adapter mouth that feeds the recoil fluid on housing wall.
Can be film separation unit pipe upper end end socket stating the imported equipments and parts described in the scheme, overflow pipe is positioned at the central authorities of imported equipments and parts, and the importer of imported equipments and parts is to the tangential direction along the annular space inwall between imported equipments and parts housing and the overflow pipe.Also inlet channel be can be provided with on the said imported equipments and parts, the flow deflector or the water conservancy diversion runner that make the feed fluid rotational flow in the fluid inlet runner, are provided with.
In such scheme, said underflow opening parts can be film separation unit pipe lower end end socket, and its underflow opening is made of horn mouth and straight hole mouth, and bell-mouthed big end connects with the film separation unit pipe.
In such scheme, the internal diameter of the film pipe of said film separation unit pipe can be 10 millimeters to 300 millimeters, and porosity can be 5% to 70%.The film pipe of film separation unit pipe can be the homogeneous membrane pipe, also can be the anisotropic membrane pipe, and the inner surface of anisotropic membrane pipe has been the active layer of centrifugation.
In such scheme, because fluid is a pressure through the volume that the pushes away power that film separates, therefore separation equipment disclosed in this invention belongs to pressure vessel, and housing should be able to bear certain pressure.
The present invention has also taked some other technical measures.
The work structuring principle of self cleaning type internal rotation flow membrane separating device disclosed by the invention is as follows: fluid to be separated and self-cleaning material are introduced into the mixing arrangement that is arranged on before the film separator tube mix after, enter film separator tube mouthpiece joining by pipeline, enter in the film separator tube by imported equipments and parts again and form rotational flow with it.In the film separator tube, the fluid that major part is held back can enter overflow pipe and be discharged to the overflow gatherer, discharges this equipment from the overflow gatherer then; Fluid and Surface Renewal material that part is held back can be discharged to from the underflow opening on the underflow opening parts, or are discharged to the underflow gatherer earlier, and then discharge this equipment from the underflow gatherer.The Surface Renewal material can be recycled.Form one first space between described film separator tube outer wall and inner walls, osmotic fluid enters this space after seeing through the film separator tube, discharges this equipment by the mouth of pipe on the housing again.Also be provided with a recoil fluid on the housing and take over mouth, the recoil fluid enters housing by it, flows in the film pipe from diffusion barrier pipe outer wall again.For being provided with a plurality of film separation unit pipes, two tube sheets at film separation unit pipe imported equipments and parts place form second space with housing, and processed material is from being assigned to each film separation unit pipe here.A seal cover and seal are arranged between overflow pipe and tube sheet, be used to seal overflow pipe, prevent that fluid in second space from mixing mutually with the fluid of overflow gatherer or leak into outside the equipment.The active layer of film separator tube is at the inner surface of pipe.Pending fluid and self-cleaning material rotate in the film pipe, and wherein, segment fluid flow sees through film under the promotion of pressure, enter into first space of this equipment and then device for transferring as osmotic fluid; Remaining fluid moves to underflow opening as trap fluid, near underflow opening, be divided into two fluid streams, most of fluid rotation is upwards flowed, become overflow, flow to the overflow gatherer from overfall, discharge this equipment then, small part fluid and self-cleaning material are together as underflow, flow to the underflow gatherer through underflow opening, discharge this equipment then.Self-cleaning material is a kind of easy and fluid separated solids matter, and can use repeatedly.The quantity that increases the film separation unit pipe can increase separating area, thereby improves the disposal ability of equipment at an easy rate.
Film separation unit tubular construction simplicity of design of the present invention is reasonable, can pack at an easy rate and dismounting, changes or clean very convenient.In several spaces of equipment, the operating pressure in first space is the highest, be recoil pressure, and recoil pressure itself can be too not high yet, and action time is very short, and therefore, the sealing between housing and imported equipments and parts and the underflow opening parts is easy to realize; The pressure in second space of this equipment is feed pressure, it is the operating pressure of described membrane separation plant, if processed fluid is assigned to each film separation unit by integrated pipeline and arm, then second space does not have pressure load, has reduced the requirement of equipment to sealing.The pressure load of overflow gatherer is bigger, but always less than feed pressure, if the overflow gatherer is a pipeline, the overflow pipe of each film separation unit is coupled, and then sealing is easy to realize; If the overflow gatherer is a pressure housing, because pressure generally can not surpass 10MPa (for example, when counter-infiltration is operated), therefore, sealing problem also can solve.The underflow gatherer bears is generally atmospheric pressure, and this sealing problem is easy to solve.
Membrane separation plant of the present invention is simple in structure, and all parts are fixture, all static seals that are sealed into, and the film separator tube also is easy to be installed and removed.For example, can adopt the following step to dismantle the film separator tube:
1. pull down equipment underflow gatherer;
2. unclamp the set bolt of underflow opening parts, pull down the underflow opening parts;
3. take off the film separator tube.
Adopt order and the action opposite, the film separator tube can be installed at an easy rate with above step.
Basic thought of the present invention is by add self-cleaning material in fluid to be separated, utilization is cleaned diffusion barrier with the self-cleaning material of fluid high-speed rotation in the film separation unit pipe, and proposed a kind of new self-cleaning technology of film surface contamination layer, and designed the film separation separation equipment of novel structure according to this basic thought.This separation equipment has kept the advantage of prior art, on performance, be better than existing technology, specifically, adopted interior pressure-pipe type film to form the separative element pipe, fluid enters behind the film separation unit pipe rotational flow in the film pipe, it is very little that pressure on the face is changed vertically, kept bigger separation motive force, and the separation motive force of traditional axial cross flow filter plant increases with axial distance and decay gradually.On the other hand, utilize the souring of self-cleaning material and rotary tangential flow can constantly upgrade the pollutant on film surface, the resistance of pollution layer has been reduced to minimum, improved the service life of film separation unit pipe, reduce maintenance work, reduced equipment operating cost.In addition, the installation of film separation unit pipe is also fairly simple, so that change the diffusion barrier that lost efficacy, also can increase or reduce the quantity of film separation unit pipe, makes economy, convenience and the practicality of system reach optimum organization.
Four, description of drawings
Accompanying drawing 1 to 9 is structural representations of the different specific embodiment of the present invention.The represented content of the figure number of each accompanying drawing is in the specific embodiment of back, and description in conjunction with the embodiments describes.
Five, the specific embodiment
In the accompanying drawing of following each embodiment, the content of prosign representative is identical, and for example " F " among the figure represents fluid to be separated, " P " represents osmotic fluid, and " R " represents trap fluid, " U " expression underflow fluid, " RF " expression recoil fluid, " M " represents self-cleaning material.
The structure of present embodiment as shown in Figure 1, for the membrane separation plant of a film separation unit pipe is housed in a pressure housing.In the present embodiment, the film separation unit pipe is by film separator tube (5), imported equipments and parts (8), underflow opening parts (2) and seal (1,3,6, formation such as 7), wait other modes that imported equipments and parts (8) and underflow opening parts (2) are assembled in the pressure housing (4) with bolt (11) or welding, bullet ring packing ring (12) plays the effect that prevents that bolt (11) is loosening, the effect of seal (1) and (7) herein be prevent osmotic fluid or the recoil fluid by flange to external leakage, and the effect of seal (3) and (6) is to prevent that the interior fluid train of film separator tube from draining to film separator tube (5) and mixing with penetrating fluid with the space between pressure housing (4) inwall, the shape of pressure housing (4) is diversified, preferentially selects the cylindrical shape pressure housing for use, has penetrating fluid outlet (14) and fluid recoil mouthful (13) on the pressure housing (4).Between imported equipments and parts (8) and fluid conveying machine (17), be provided with mixing arrangement (18), preferentially select the jet pipe blender for use, constitute membrane separation plant of the present invention with agent set.
Imported equipments and parts (8) comprise adpting flange, tangential flow guiding structure (9) and overflow pipe (10).Tangential flow guiding structure can be that one or more drainage channel is formed, drainage channel can be the runner that can produce the Any shape of rotational flow, for example, the tangent line shape of the rectangle that shrinks or the tangent line shape of circular cross section, non-shrinking circular cross section, spiral yarn shaped, involute shape, camber line shape feed pipe etc. are preferentially selected the tangent circular cross section drainage channel of internal face with imported equipments and parts (8) for use; Overflow pipe can be the pipeline of any shape of cross section, preferentially uses the pipeline (10) of circular cross section; Adpting flange is connected with the flange of pressure housing (4), and with seal (7) sealing, seal is preferentially selected O-ring seals for use.
Underflow opening parts (2) comprise oared segrne pii (awl section), underflow opening (15) and flange.The cone angle of awl section is transformable, preferentially selects 90 ° for use, and the shape of underflow opening cross section can be an Any shape, preferentially select the underflow opening of circular cross section for use, but underflow opening spraying wear-resistant materials or nested high-abrasive material, the size of underflow opening can be regulated, with the needs of adaptation condition; Flange is connected with the flange of pressure housing (4), and with seal (1) sealing, seal is preferentially selected O-ring seals for use.
For the equipment of the single film separation unit pipe of inner pressed shown in Figure 1, can tangential entry parts (8) be connected with pressure housing (4) with underflow opening parts (2) with the connected mode of other form, for example, thread connecting mode and open flange connection etc. soon.
Self-cleaning material is a kind of solids, can adopt any treatment process, and the density that allows to use is made solids greater than the material of fluid density to be separated, and the shape of particle can be an Any shape, preferentially adopts spheroidal particle as self-cleaning material.
Embodiment shown in Figure 1 is particularly suitable for the indoor or open-air water purification of drinking.Supply with the mixed liquor of former water and self-cleaning material to the drainage channel (9) of equipment, mixed liquor flows downward as rotational flow after entering in the film separator tube (5), simultaneously, self-cleaning material deposits to face rapidly and does the circular helix motion, film is selective to water, so pure water can see through permeable film, enter in the annular space between film separator tube (5) and the pressure housing (4), osmotic fluid from the cylinder outlet (14) is flowed out then, and most of solid matter and living beings can be retained down, move to the bottom of film separator tube then with waste water, be divided into underflow and forward spin flow in this zone, the underflow band self-cleaning material by underflow opening (15) device for transferring, and forward spin flow mainly is a waste water, upwards flows through overflow pipe (10) as the trapped fluid device for transferring.On pressure housing (4), also have recoil fluid intake (13), so that feed the recoil fluid that upgrades diffusion barrier.
The structure of present embodiment as shown in Figure 2, for the membrane separation plant of a film separation unit pipe is housed in a pressure housing.In the present embodiment, the structure of its agent structure and embodiment 1 is identical, be that self-cleaning material did not carry out in mixing arrangement (18) with mixing of fluid to be separated, but in mixing channel (preferentially selecting tank diameter for use) (16), mix earlier, be transported to imported equipments and parts (8) by fluid conveying machine (17) again, constitute membrane separation plant of the present invention thus.
The structure of present embodiment as shown in Figure 3, for the membrane separation plant of a film separation unit pipe is housed in a pressure housing.In the present embodiment, the structure of its agent structure and embodiment 1 is identical, just in advance self-cleaning material is joined in the mixing channel (16), self-cleaning material be transported to imported equipments and parts (8) by fluid conveying machine (17) again after fluid to be separated mixes, constitute membrane separation plant of the present invention thus.After self-cleaning material is discharged from the underflow opening (15) of underflow opening parts (2), directly enter mixing channel (16) and mix with fresh fluid to be separated.In this embodiment, self-cleaning material can recycle.
The structure of present embodiment as shown in Figure 4, for the membrane separation plant of two film separation unit pipes is housed in a pressure housing.This is an embodiment of the another kind of structure of the present invention, and Fig. 4 is the schematic cross-section of this embodiment.Be suitable for the bigger water purification for the treatment of capacity, wastewater treatment, seawater cleaning, bitter purification etc. are particularly useful for containing in the liquid occasion of solid suspension.
In the present embodiment, the pressure-bearing shell of agent set is by upper perforated plate (25), cylindrical shell (23) and lower perforated plate formations such as (22), the cross section of cylindrical shell (23) can be an arbitrary shape, preferentially adopts cylinder, has osmotic fluid outlet (38) and recoil fluid intake (24) on the barrel wall.The two ends of cylindrical shell (23) are welded with upper perforated plate (25) and lower perforated plate (22), and corresponding one by one on perforate size, number of aperture and the position of opening on the lower perforated plate (22) and the upper perforated plate (25) is so that install the film separation unit pipe.The structure of film separation unit pipe is identical with Fig. 1 embodiment's.Lower perforated plate (22) links with underflow gatherer (20), underflow gatherer (20) can be the end socket of Any shape, preferentially adopt conical head, so that make underflow flow to underflow opening (19) at an easy rate, discharger then, underflow gatherer (20) is connected with the lower perforated plate (22) of pressure-bearing shell by flange (21), and seals with seal (39).Between the flow guiding structure (9) of film separation unit pipe imported equipments and parts (8) and fluid conveying machine (17), be provided with fluid distributor (40), fluid distributed to each film separation unit pipe equably by it.Overflow direction at the overflow pipe (10) of film separation unit pipe imported equipments and parts (8) is provided with overflow gatherer (31), collects from the overflow of each film separation unit pipe by it.
The agent set of present embodiment and mixing channel (16), fluid conveying machine (17), fluid distributor (40), overflow gatherer (31) etc. have constituted self cleaning type internal rotation flow membrane separating device.Self-cleaning material mixes earlier in mixing channel (16) with fluid to be separated, be transported to fluid distributor (40) by fluid conveying machine (17) again, fluid is distributed to equably the flow guiding structure (9) of the imported equipments and parts (8) of each film separation unit pipe by it, after separating, osmotic fluid is from osmotic fluid outlet (38) device for transferring of cylindrical shell (23), small part fluid and self-cleaning material are through underflow opening (19) device for transferring, and trap fluid flows to overflow gatherer (31) device for transferring again through overflow pipe (10).
The structure of present embodiment as shown in Figure 5, for the membrane separation plant of two film separation unit pipes is housed in a pressure housing.In the present embodiment, agent set and embodiment 4 are identical, just some difference of technological process, promptly self-cleaning material is joined in the mixing channel (16) in advance, self-cleaning material be transported to fluid distributor (40) by fluid conveying machine (17) again after fluid to be separated mixes, by it fluid is distributed to each film separation unit pipe equably, servicing unit constitutes the membrane separation plant of present embodiment with agent set.After self-cleaning material is discharged from the underflow opening (19) of underflow gatherer (20), directly enter mixing channel (16) and mix with fresh fluid to be separated.In the present embodiment, self-cleaning material can recycle.
The structure of present embodiment as shown in Figure 6, for the membrane separation plant of two film separation unit pipes is housed in a pressure housing.In the present embodiment, agent set and embodiment 4 are identical, just some difference of technological process, be that self-cleaning material mixes in mixing arrangement (18) with the fluid to be separated of being come by fluid conveying machine (17) conveying, enter fluid distributor (40) then, by it fluid is distributed to each film separation unit pipe equably, constitute the membrane separation plant of present embodiment thus.
The recoil fluid intake (24) that cylindrical shell (23) among the embodiment 4,5 and 6 is gone up design is to be used for introducing the recoil fluid, so that diffusion barrier is carried out backwash.
The structure of present embodiment is equipped with two above inner pressed film separation unit pipes as shown in Figure 7 in pressure housing, accompanying drawing 7 is schematic cross-sections of such exemplary apparatus.This is embodiment of membrane separation plant of the another kind of structure of the present invention.Be suitable for the bigger water purification for the treatment of capacity, wastewater treatment, seawater cleaning, bitter purification etc. are particularly useful for containing in the liquid occasion of solid suspension.
The agent set pressure-bearing shell of present embodiment is by upper perforated plate (25), cylindrical shell (23) and lower perforated plate formations such as (22), the cross section of cylindrical shell (23) can be an arbitrary shape, preferentially adopt the cylinder cylindrical shell, have osmotic fluid outlet (38) and recoil fluid intake (24) on the barrel wall.The two ends of cylindrical shell (23) are welded with upper perforated plate (25) and lower perforated plate (22), and corresponding one by one on perforate size, number of aperture and the position of opening on the lower perforated plate (22) and the upper perforated plate (25) is so that install the film separation unit pipe.The structure of film separation unit pipe is with embodiment illustrated in fig. 1 identical.Lower perforated plate (22) links with underflow gatherer (20), underflow gatherer (20) can be the end socket of Any shape, preferentially adopt conical head, so that make underflow flow to underflow opening (19) at an easy rate, discharger then, underflow gatherer (20) is connected with the lower perforated plate (22) of pressure-bearing shell by flange (21), and seals with seal (39).Between the flow guiding structure (9) of film separation unit pipe imported equipments and parts (8) and fluid conveying machine (17), be provided with fluid distributor, fluid distributor is housing cylindrical shell (a 23) upper perforated plate (25), cylindrical shell (35), space between the upper cover tube sheet (34), the cross section of cylindrical shell (35) can be an arbitrary shape, preferentially adopt cylindrical vessel, have charging aperture (26) on the wall, one end welded flange (36) of cylindrical shell (35), other end welding upper cover tube sheet (34), connect with the upper perforated plate (25) of pressure-bearing shell by flange (36), and seal with seal (37).Fluid can be distributed to equably each film separation unit pipe by fluid distributor.Overflow direction at the overflow pipe (10) of film separation unit pipe imported equipments and parts (8) is provided with overflow gatherer (31), overflow gatherer (31) also is a pressure-resistance structure, be the space between upper cover tube sheet and the upper cover, overflow gatherer (31) can be the end socket of Any shape, preferentially adopt ellipsoidal head, be welded with flange (33), overflow outlet (27) is arranged on the end socket.Overflow gatherer (31) is connected with upper cover tube sheet (34) by flange (33), and with seal (32) sealing, collects from the overflow of each film separation unit pipe by it.Sealing between overflow pipe of film separation unit pipe (10) and the feed space (35) is finished by seal cover (30), available bolt is seal cover (30) fixedly on the upper cover tube sheet (34), and seal with seal (28), gap between seal cover (30) and the overflow pipe (10) seals with seal (29), and can be with multiple-sealed.
The agent set of present embodiment and mixing channel (16), fluid conveying machine (17) etc. have constituted self cleaning type internal rotation flow membrane separating device.Self-cleaning material mixes earlier in mixing channel (16) with fluid to be separated, be transported to the charging aperture (26) of fluid distributor again by fluid conveying machine (17), fluid is distributed to equably the flow guiding structure (9) of the imported equipments and parts (8) of each film separation unit pipe by fluid distributor, after separating, osmotic fluid is from osmotic fluid outlet (38) device for transferring of cylindrical shell (23), small part fluid and self-cleaning material are through underflow opening (19) device for transferring of underflow gatherer (20), and trap fluid flows to overflow gatherer (31) again by overflow outlet (27) device for transferring through overflow pipe (10).
The structure of present embodiment as shown in Figure 8, for the membrane separation plant of plural film separation unit pipe is housed in a pressure housing.In the present embodiment, agent set and embodiment 7 are identical, just some difference of technological process, promptly self-cleaning material is joined in the mixing channel (16) in advance, self-cleaning material and the charging aperture (26) that is transported to fluid distributor after fluid to be separated mixes again by fluid conveying machine (17), by fluid distributor fluid is distributed to each film separation unit pipe equably, after self-cleaning material is discharged from the underflow opening (19) of underflow gatherer (20), directly enter mixing channel (16) and mix, constitute the membrane separation plant of present embodiment thus with fresh fluid to be separated.In this embodiment, self-cleaning material can recycle.
The structure of present embodiment as shown in Figure 9, for the membrane separation plant of plural film separation unit pipe is housed in a pressure housing.In the present embodiment, agent set and embodiment 7 are identical, just some difference of technological process.Self-cleaning material mixes in mixing arrangement (18) with the fluid to be separated of being come by fluid conveying machine (17) conveying, enter the charging aperture (26) of fluid distributor then, by fluid distributor fluid is distributed to each film separation unit pipe equably, constitute the membrane separation plant of present embodiment thus.
Cylindrical shell (23) among the embodiment 7,8 and 9 is gone up the recoil fluid intake (24) of design, is to be used for introducing the recoil fluid, so that diffusion barrier is carried out backwash.
The mounting or dismounting of membrane separation plant film separator tube of the present invention (5) are very convenient, can carry out according to the following steps:
1. the underflow gatherer (20) of dismantling;
2. dismantle bolt (11) and packing ring (12);
3. unload underflow opening parts (2);
4. pull down film separator tube (5).
Adopt order and the action opposite, film separator tube (5) can be installed at an easy rate with above step.
It is the film separation process of motive force that membrane separation plant of the present invention can be used for pressure, and for example counter-infiltration, ultrafiltration and micro-filtration are particularly suitable for separating the fluid that has solids.
The specific embodiment of the present invention is not limited to the described form of embodiment, and those skilled in the art is easy to content design according to the present invention and goes out other concrete structure embodiments, but such concrete structure embodiment still belongs to protection scope of the present invention.
Claims (10)
1, a kind of self cleaning type internal rotation flow membrane separating device, in apparatus casing, be provided with the film separation unit pipe, unit pipes is provided with and makes fluid to be separated tangentially enter the imported equipments and parts of unit pipes along the unit pipes inwall, with the overflow pipe that makes bleed-off fluid deliverying unit pipe, design has the osmotic fluid outlet on the housing wall, it is characterized in that equipment also is provided with the device that self-cleaning material and feed fluid to be separated are mixed mutually, with the underflow opening parts that make underflow fluid and self-cleaning material deliverying unit pipe, described mixing arrangement is arranged on feed fluid and enters before the imported equipments and parts, connected with imported equipments and parts by pipeline, described underflow opening parts are arranged on the lower end of unit pipes.
2, self cleaning type internal rotation flow membrane separating device as claimed in claim 1, it is characterized in that being provided with in the housing and be no less than two film separation unit pipe, be provided with the fluid distributor that communicates with it between the mixing arrangement that comes flow path direction at fluid to be separated and the imported equipments and parts, overflow direction outside overflow pipe is provided with the overflow gatherer that communicates with it, is provided with the underflow gatherer that communicates with it in the underflow direction of underflow opening parts.
3, self cleaning type internal rotation flow membrane separating device as claimed in claim 2, it is characterized in that said fluid distributor is the space between housing cylindrical shell upper perforated plate and the upper cover tube sheet, said overflow gatherer is the space between upper cover tube sheet and the upper cover, and said underflow gatherer is the space between housing cylindrical shell lower perforated plate and the low head.
4, as claim 1 or 2 or 3 described self cleaning type internal rotation flow membrane separating devices, it is characterized in that also being provided with the return pipeline that self-cleaning material is recycled, an end and the mixing arrangement of returning pipeline link, and the other end and underflow opening parts or underflow gatherer link.
5,, it is characterized in that on housing wall also design is useful on the recoil fluid that feeds updating block pipe diffusion barrier and enters adapter mouth in the housing as claim 1 or 2 or 3 described self cleaning type internal rotation flow membrane separating devices.
6, as claim 1 or 2 or 3 described self cleaning type internal rotation flow membrane separating devices, it is characterized in that said imported equipments and parts are film separation unit pipe upper end end socket, overflow pipe is positioned at the central authorities of imported equipments and parts, and the importer of imported equipments and parts is to the tangential direction along the annular space inwall between imported equipments and parts housing and the overflow pipe.
7, self cleaning type internal rotation flow membrane separating device as claimed in claim 6 is characterized in that said imported equipments and parts are provided with inlet channel and overflow pipe, is provided with the flow deflector or the water conservancy diversion runner that make the feed fluid rotational flow in the fluid inlet runner.
8, as claim 1 or 2 or 3 described self cleaning type internal rotation flow membrane separating devices, it is characterized in that said underflow opening parts are film separation unit pipe lower end end socket, its underflow opening is made of horn mouth and straight hole mouth, and bell-mouthed big end connects with the film separation unit pipe.
9, as claim 1 or 2 or 3 described self cleaning type internal rotation flow membrane separating devices, the internal diameter that it is characterized in that the film pipe of said film separation unit pipe is 10 millimeters to 300 millimeters, and porosity is 5% to 70%.
10, self cleaning type internal rotation flow membrane separating device as claimed in claim 9, the film pipe that it is characterized in that said film separation unit pipe can be the homogeneous membrane pipe, also can be the anisotropic membrane pipe, the inner surface of anisotropic membrane pipe has been the active layer of centrifugation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100201054A CN100486714C (en) | 2005-01-05 | 2005-01-05 | Self cleaning type internal rotation flow membrane separating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100201054A CN100486714C (en) | 2005-01-05 | 2005-01-05 | Self cleaning type internal rotation flow membrane separating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1631548A true CN1631548A (en) | 2005-06-29 |
| CN100486714C CN100486714C (en) | 2009-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100201054A Expired - Fee Related CN100486714C (en) | 2005-01-05 | 2005-01-05 | Self cleaning type internal rotation flow membrane separating device |
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| Country | Link |
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| CN (1) | CN100486714C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201543A (en) * | 2019-07-09 | 2019-09-06 | 西南交通大学 | A kind of forward osmosis membrane component slowing down outer concentration polarization and fouling membrane |
| CN113144732A (en) * | 2021-04-14 | 2021-07-23 | 台州科技职业学院 | Self-cleaning type internal rotational flow membrane separation device for wastewater purification and use method thereof |
| CN113522026A (en) * | 2021-06-24 | 2021-10-22 | 合肥云雀智能科技有限公司 | Ultrafiltration equipment back-flushing device with pressure relief mechanism |
-
2005
- 2005-01-05 CN CNB2005100201054A patent/CN100486714C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201543A (en) * | 2019-07-09 | 2019-09-06 | 西南交通大学 | A kind of forward osmosis membrane component slowing down outer concentration polarization and fouling membrane |
| CN113144732A (en) * | 2021-04-14 | 2021-07-23 | 台州科技职业学院 | Self-cleaning type internal rotational flow membrane separation device for wastewater purification and use method thereof |
| CN113522026A (en) * | 2021-06-24 | 2021-10-22 | 合肥云雀智能科技有限公司 | Ultrafiltration equipment back-flushing device with pressure relief mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100486714C (en) | 2009-05-13 |
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