CN102607126A - External pressure hollow fiber membrane humidifier - Google Patents
External pressure hollow fiber membrane humidifier Download PDFInfo
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- CN102607126A CN102607126A CN2012100798050A CN201210079805A CN102607126A CN 102607126 A CN102607126 A CN 102607126A CN 2012100798050 A CN2012100798050 A CN 2012100798050A CN 201210079805 A CN201210079805 A CN 201210079805A CN 102607126 A CN102607126 A CN 102607126A
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Abstract
The invention relates to an external pressure hollow fiber membrane humidifier, comprising a shell, and a water inlet, a water outlet, an air inlet and an air outlet, which are arranged on the shell; a hollow fiber membrane bundle body is arranged in the shell; a first sealing component and a second sealing component sequentially divide the interior of the shell into a first air flow region, a water stream region and a second air flow region, which are independent to one another in the axial direction, and the two ends of the hollow fiber membrane bundle body respectively penetrate the first sealing component and the second sealing component; a water flow channel is formed between the inner wall of the shell and the outer wall of the hollow fiber membrane in the water stream region; the external pressure hollow fiber membrane humidifier is characterized in that the inside diameter of the hollow fiber membrane is 2-5mm; when the humidifier is operated, the hollow fiber transmembrane pressure difference is not larger than 0.001MPa, and if the aperture of the surface of the hollow fiber membrane is 0.1-0.2mum and the porosity is 68-75%, the water in the water flow channel passes through the hollow fiber membrane and forms a water curtain in the hollow fiber membrane, and the water can still selectively pass through the hollow fiber membrane when the hollow fiber membrane is in a non-wet state. The humidifier disclosed by the invention can be applied to the civil and industrial fields.
Description
Technical field
The present invention is specifically related to a kind of external-compression type hollow-fibre membrane humidifier, belongs to the humidifying technology field.
Background technology
Humidifier is the equipment that a kind of common being used to increases ambient humidity: at civil area, the humidity of living environment around humidifier can improve and keep prevents that people are because of dry malaise symptoms or the generation diseases such as dry, pruitus of producing; At industrial circle; There is very high requirement in production places such as electronics, semiconductor, explosion-proof factory to ambient humidity; Be enough to cause the danger of blast because of the caused inadequately static of humidity; What need propose especially is in the fuel cell industry, because the PEM in the battery just can be kept higher proton conductivity under certain humidity, method therefore commonly used is in fuel cell, to assemble humidifier to guarantee the humidity of PEM.
The modal type of humidifier is ultrasonic humidifier and electrical heating humidifier; They all need carry out humidification through making water fogging, but the water smoke that produces combines to form " fog " easily with airborne solid particulate matter, and the people after sucking " fog " respiratory tract and PUD D takes place very easily; And after water smoke diffusion, the evaporation; Inorganic salts such as the magnesium in the water, calcium can remain on the humidifier wall, form by " white powder ", and this had both increased the difficulty of cleaning; Also easy burn into damage equipment makes the lost of life of equipment.
In order to make humidifier when realizing humidification, not produce " fog " and " white powder " again; There is the researcher to propose wet-membrane humidifier; Establish water-absorbing material in the wet-membrane humidifier and since wet-membrane humidifier work the time be through the water-absorbing material adsorption moisture after, come humidifying air by the moisture of this part absorption of dry air evaporation; Need not atomizing, so in its course of work, can not produce " fog " and " white powder ".But wet-membrane humidifier is when operation, and the bacterium in the water can be blown in the air by air-flow, thereby jeopardizes the health of human body.
For solve wet-membrane humidifier can't trap water in the problem of bacterium, the someone has proposed the hollow-fibre membrane humidifier in recent years, comprises housing and the connected hollow fiber film assembly that is formed by many hollow-fibre membrane boundlings; The inside and outside portion of hollow-fibre membrane; One side water flowing, opposite side leads to dry air, utilizes the selection permeability of hollow-fibre membrane during the device operation; Be that the aperture on hollow-fibre membrane surface only is suitable for water and sees through; Bacterium in the water then can't see through, thereby can make the water of a side see through the air that film arrives opposite side humidification drying, and bacterium tackled because of not seeing through film simultaneously.
The hollow-fibre membrane humidifier is divided into two kinds of inner pressed and external-compression types; The inboard water flowing of hollow-fibre membrane when inner pressed refers to work, outside blowing air.Otherwise external-compression type is the outside water flowing of hollow-fibre membrane, inboard blowing air.During the operation of inner pressed hollow-fibre membrane humidifier; Dry air is along the Radial Flow of hollow-fibre membrane; Because the hollow-fibre membrane boundling is arranged; The intermembranous slit of doughnut is very little, and dry air is difficult to pass intermembranous slit and contacts with the film at hollow fiber membrane bundle center, makes the doughnut membrane area that really can touch dry air reduce.The two ends of hollow-fibre membrane are connected with housing in addition; And the amount that dry air flow to above-mentioned connection edge seldom; The membrane area that therefore can touch dry air and then the moisture humidifying air that utilization saw through on the whole in the inner pressed hollow-fibre membrane humidifier is less, causes the humidification efficiency of humidifier lower; And external-compression type hollow-fibre membrane humidifier has overcome the above-mentioned shortcoming of inner pressed hollow-fibre membrane humidifier, and existing external-compression type hollow-fibre membrane humidifier has its conventional structure.A kind of external-compression type hollow-fibre membrane humidifier is disclosed like Chinese patent document CN101534934A; Comprise housing and the humidification membrane that forms by many hollow-fibre membrane boundlings that is placed in one; The outside of hollow-fibre membrane is a water flow passage; Inside is air flow channel, and the water in the water flow passage can pass film and arrive the inner humidification dry air of film.In the existing external-compression type hollow-fibre membrane humidifier; The aqueous water of hollow-fibre membrane flows outside is easy to flow to the junction of intermembranous slit and film and housing; Simultaneously dry air in hollow-fibre membrane inside along its axial flow; All membrane areas all can touch air and can see through moisture, so the humidification efficiency of external-compression type hollow-fibre membrane humidifier is compared inner pressed hollow-fibre membrane humidifier and improved a lot.
Because those skilled in the art thinks that always the hollow-fibre membrane humidifier will obtain very high humidification efficiency for a long time, needs very big membrane area, arrive the water yield that the film opposite side is used for humidifying air through the film surface thereby can improve in the unit interval.Therefore adopt internal diameter to be less than or equal to the hollow-fibre membrane of 1mm in the prior art always, thereby can in limited space, obtain very big membrane area, help the raising of humidifier humidification efficiency.According to this general technological standpoint, in conjunction with the conventional structure of external-compression type hollow-fibre membrane humidifier in the prior art, the applicant adopt respectively internal diameter be 0.8mm, 1mm the doughnut film production two kinds of external-compression type hollow-fibre membrane humidifiers.Find through test; When the humidification amount of the external-compression type hollow-fibre membrane humidifier of made all is 240g/h; Its consumed power is respectively 148w and 120w, and humidifier commonly used reaches only tens watts of the normal power consumptions of 240g/h humidification amount, and visible applicant combines the power consumption of external-compression type hollow-fibre membrane humidifier of general technological standpoint in this area and prior art made too high; Will certainly cause the waste of the energy during use, practicality is not strong.
Have again; Test is also found; It is above-mentioned two kinds of external-compression type hollow-fibre membrane humidifiers of the doughnut film production of 0.8mm, 1mm that the applicant adopts internal diameter respectively, in its humidification except have moistening air from air flow channel, be discharged to out-of-bounds, also constantly have aqueous water from the inner air flow channel of hollow-fibre membrane, to discharge; Aqueous water in the air flow channel has not only hindered gas flow; And in order not influence the operation of humidifier, the aqueous water of being discharged need carry out collection and treatment, so also is not easy to the use of humidifier.
Summary of the invention
First technical problem to be solved by this invention is common technique viewpoint and the prior art that the applicant combines this area, adopt internal diameter be less than or equal to 1mm the doughnut film production external-compression type hollow-fibre membrane humidifier.Consumed power through testing the external-compression type hollow-fibre membrane humidifier of finding made is very high, and the consumed power considerably beyond humidifier commonly used has caused energy waste; And then the low external-compression type hollow-fibre membrane humidifier of a kind of consumed power proposed.
Second technical problem to be solved by this invention is in the prior art, and the applicant combines the common technique viewpoint and the prior art of this area, adopts internal diameter to be less than or equal to the external-compression type hollow-fibre membrane humidifier of the doughnut film production of 1mm.In its humidification except have moistening air from air flow channel, be discharged to out-of-bounds; Also constantly there is aqueous water from the inner air flow channel of hollow-fibre membrane, to discharge; Aqueous water in the air flow channel has not only hindered gas flow; And in order not influence the operation of humidifier, the aqueous water of being discharged needs further collection and treatment, so also is not easy to the use of humidifier; And then propose not have in a kind of air flow channel the external-compression type hollow-fibre membrane humidifier that aqueous water produces and discharges.
For solving the problems of the technologies described above, the invention provides a kind of external-compression type hollow-fibre membrane humidifier, comprise housing, be arranged on water inlet, delivery port, air inlet and gas outlet on the said housing; And being arranged on the hollow fiber membrane bundle body in the said housing, said hollow fiber membrane bundle body is formed by the hollow-fibre membrane boundling with air flow channel; In said housing, be provided with first seal member and second seal member that are connected with said inner walls, said first seal member and second seal member are separated into the first separate flow area, current district and second flow area vertically successively with said enclosure interior; Said water inlet and delivery port are connected with said current district; Said air inlet is connected with said first flow area or second flow area, and said gas outlet correspondingly is connected with said second flow area or first flow area; Said first seal member is run through at the two ends of said hollow fiber membrane bundle body respectively and second seal member extends into said first flow area and said second flow area; In said current district, be shaped to water flow passage between said inner walls and the said hollow-fibre membrane outer wall; The internal diameter of said hollow-fibre membrane is 2-5mm.
Said doughnut membrane material is one or more in Kynoar, polyvinyl chloride, polyethylene, polyether sulfone, polyacrylonitrile, polyvinyl alcohol, polyvinyl butyral resin and the polyurethane.
The thickness of said hollow-fibre membrane is 0.3-0.5mm.
Micropore size≤0.2 μ the m on said hollow-fibre membrane surface.
The porosity on said hollow-fibre membrane surface is 68%-75%.
Transmembrane pressure≤the 0.001MPa of said hollow-fibre membrane, the aperture on said hollow-fibre membrane surface is 0.1-0.2 μ m, when porosity is 68%-75%, the water in the said water flow passage sees through said hollow-fibre membrane, and at the inner water curtain that forms of said hollow-fibre membrane.
Said water inlet is provided with near said gas outlet, and said delivery port is near said air inlet setting.
Said first seal member, second seal member be perpendicular to the axis setting of said housing, and be parallel to each other.
Said water inlet is connected with micro pump.
The present invention compares with the prior art scheme has following beneficial effect:
(1) hollow-fibre membrane humidifier according to the invention comprises housing, is arranged on water inlet, delivery port, air inlet and gas outlet on the said housing; And be arranged on the hollow fiber membrane bundle body in the said housing.Said hollow fiber membrane bundle body is formed by the hollow-fibre membrane boundling with air flow channel; In said housing, be provided with first seal member and second seal member that are connected with said inner walls.Said first seal member and second seal member are separated into the first separate flow area, current district and second flow area vertically successively with said enclosure interior.Said water inlet and delivery port are connected with said current district.Said air inlet is connected with said first flow area or second flow area, and said gas outlet correspondingly is connected with said second flow area or first flow area.Said first seal member is run through at the two ends of said hollow fiber membrane bundle body respectively and second seal member extends into said first flow area and said second flow area.In said current district, be shaped to water flow passage between said inner walls and the said hollow-fibre membrane outer wall.The internal diameter of said hollow-fibre membrane is 2-5mm.Though those skilled in the art think that always the employing internal diameter is less than or equal to the hollow-fibre membrane manufacturing external-compression type hollow-fibre membrane humidifier of 1mm for a long time; Can obtain very big membrane area, see through the water yield that film is used for humidifying air in the unit interval thereby can improve.But the consumed power of finding this humidifier through test is very big, considerably beyond the consumed power of humidifier commonly used.And applicant of the present invention finds that the hollow-fibre membrane that internal diameter in the prior art is less than or equal to 1mm replaces with the hollow-fibre membrane that internal diameter is 2-5mm in the back after deliberation; Though the gross area of hollow-fibre membrane has reduced; But the hollow-fibre membrane that effective area and the internal diameter of hollow-fibre membrane in the humidifier humidification is less than or equal to 1mm quite, be enough to satisfy the actual needs that use.What is more important; Adopting internal diameter is the external-compression type hollow-fibre membrane humidifier of the hollow-fibre membrane manufacturing of 2-5mm; Its consumed power reduces greatly; Be merely 0.25 times of external-compression type hollow-fibre membrane humidifier that the hollow-fibre membrane internal diameter is less than or equal to 1mm, can reach the level of humidifier commonly used, thereby solved the high problem of external-compression type hollow-fibre membrane humidifier consumed power that hollow-fibre membrane that the available technology adopting internal diameter is less than or equal to 1mm is made.
(2) transmembrane pressure≤0.001MPa of hollow-fibre membrane according to the invention; The aperture on said hollow-fibre membrane surface is 0.1-0.2 μ m, when porosity is 68%-75%; Water in the said water flow passage sees through said hollow-fibre membrane, and at the inner water curtain that forms of said hollow-fibre membrane.In the prior art; In order to obtain the high humidification efficiency of humidifier, those skilled in the art make the glassware for drinking water that sees through hollow-fibre membrane that certain fluidity arranged, and promptly form less current; For treating that the humidification dry air provides enough moisture content; But the humidifier that test shows has an above-mentioned technical characterictic in humidification except have moistening air from air flow channel, be discharged to out-of-bounds, also constantly have aqueous water from the inner air flow channel of hollow-fibre membrane, to discharge, the aqueous water in the air flow channel has hindered gas flow; And the aqueous water of being discharged need collect and handle, and is not easy to the use of humidifier like this.The applicant finds the transmembrane pressure≤0.001MPa when the control hollow-fibre membrane after deliberation; And the micropore size that makes said hollow-fibre membrane surface is 0.1-0.2 μ m, when porosity is 68%-75%, the water infiltration is through can be at the inside of hollow-fibre membrane formation water curtain behind the hollow-fibre membrane.During air flow channel in dry air is flowed through hollow-fibre membrane, the latent heat of dry air evaporates water curtain rapidly, and steam mixes with air mutually, and dry air is by humidification.The outside water of hollow-fibre membrane permeates under the effect of transmembrane pressure again through film and in the inside of film and continues to form water curtain simultaneously.Can in air flow channel, not form aqueous water in the whole process; In addition, the formation of water curtain can also make dry air by humidification equably, guarantees that the humidity after air is by humidification is constant, is specially adapted to the environment that need accurately control humidity.So external-compression type hollow-fibre membrane humidifier according to the invention has overcome all the time, and those skilled in the art select to make the water through hollow-fibre membrane form less current; Think and treat that the humidification dry air provides the technological prejudice of enough moisture content that the outside water of hollow-fibre membrane that makes surface micropore have certain pore size and porosity permeates through film and in the inside of film and forms water curtain under the effect of certain transmembrane pressure.Both avoided seeing through the hypervolia of film, and had aqueous water in the air flow channel, aqueous water can stop up gas flow; Make the circulation difficulty of air; And liquid water stream goes out the inconvenience that humidifier that air flow channel brings uses, and the water yield of also having avoided seeing through film is few, effectively the humidification dry air; The operating efficiency of humidifier reduces, optimization and improvement the humidification efficiency and the stability of humidifier.
(3) external-compression type hollow-fibre membrane humidifier according to the invention, said air inlet is near said delivery port setting, and said gas outlet is near said water inlet setting.The flow direction of water is opposite in the flow direction of gas flow air and the water flow passage, and both form adverse current, can improve the humidification efficiency of water to dry air, improves the operating efficiency of humidifier.
Description of drawings
For content of the present invention is understood more easily, the present invention combines the accompanying drawing and the specific embodiment that content of the present invention is further explained;
Fig. 1 is the front view of external-compression type hollow-fibre membrane humidifier of the present invention;
Fig. 2 is the profile of external-compression type hollow-fibre membrane humidifier of the present invention along A-A;
Fig. 3 is the left view of external-compression type hollow-fibre membrane humidifier of the present invention;
Fig. 4 is the profile of external-compression type hollow-fibre membrane humidifier of the present invention along B-B;
Wherein Reference numeral is: 1-housing, 2-air inlet, 3-gas outlet, 4-water inlet, 5-delivery port, 6-water flow passage, 7-air flow channel, 8-hollow-fibre membrane.
The specific embodiment
External-compression type hollow-fibre membrane humidifier according to the invention comprises housing 1 shown in Fig. 1-4, be arranged on water inlet 4, delivery port 5, air inlet 2 and gas outlet 3 on the said housing 1; And be arranged on the hollow fiber membrane bundle body in the said housing 1.Said hollow fiber membrane bundle body is formed by 8 boundlings of the hollow-fibre membrane with air flow channel 7; In said housing 1, be provided with first seal member and second seal member that are connected with said housing 1 inwall.Said first seal member and second seal member are separated into the first separate flow area, current district and second flow area vertically successively with said housing 1 inside.Said water inlet 4 is connected with said current district with delivery port 5; Said air inlet 2 is connected with said first flow area or second flow area.Said gas outlet 3 correspondingly is connected with said second flow area or first flow area.Said first seal member is run through at the two ends of said hollow fiber membrane bundle body respectively and second seal member extends into said first flow area and said second flow area.In said current district, be shaped to water flow passage 6 between said housing 1 inwall and said hollow-fibre membrane 8 outer walls; The internal diameter of said hollow-fibre membrane 8 is 2-5mm; Wherein, said hollow-fibre membrane 8 has transmembrane pressure, and the external pressure of said hollow-fibre membrane 8 is greater than its internal pressure.
On this basis, said hollow-fibre membrane 8 materials are one or more in Kynoar, polyvinyl chloride, polyethylene, polyether sulfone, polyacrylonitrile, polyvinyl alcohol, polyvinyl butyral resin and the polyurethane.
Preferably, the thickness of said hollow-fibre membrane 8 is 0.3-0.5mm.
Preferably, the micropore size≤0.2 μ m on said hollow-fibre membrane 8 surfaces.
Preferably, said hollow-fibre membrane 8 surperficial micropore porositys are 68%-75%.
On the basis of the above,, arrive the inner water yield of hollow-fibre membrane 8 in order to control through film as disposable embodiment, thus guarantee external-compression type hollow-fibre membrane humidifier can be efficiently, operation stably.Transmembrane pressure≤the 0.001MPa of said hollow-fibre membrane 8; The apertures on said hollow-fibre membrane 8 surfaces are 0.1-0.2 μ m, when porosity is 68%-75%; Water in the said water flow passage 6 sees through said hollow-fibre membrane 8, and at the said hollow-fibre membrane 8 inner water curtains that form.
Further, said air inlet 2 is provided with near said delivery port 5, and said gas outlet 3 is provided with near said water inlet 4.
Further, said first seal member, second seal member be perpendicular to the axis setting of said housing 1, and be parallel to each other.
In addition, in order to control the inflow of said external-compression type hollow-fibre membrane humidifier, said water inlet 4 is connected with micro pump.
Preferably, the water flow velocity≤0.5m of said water inlet 4
3/ h; The gas flow rate of said air inlet 2 is 10-500m
3/ h.
On the basis of the above; As another embodiment; Because when hollow-fibre membrane 8 surfaces of external-compression type hollow-fibre membrane humidifier were dampness in the prior art, water can see through film smoothly, in case and hollow-fibre membrane 8 dry tack frees; Closure will take place or dwindle in the micropore on film surface, and water can't successfully see through.Even dry film returns to dampness; The flux of water can not recover yet, and the micropore on film surface can not open or enlarge again yet, has so just influenced the separating property of film; For this technical problem; Common settling mode is when not using, hollow-fibre membrane 8 to be immersed in the protection liquid, and keeping the dampness on film surface, and this mode is inappropriate for humidifier and under the condition of alternation of wetting and drying, works.Therefore; After making said humidifier out of service; When hollow-fibre membrane 8 was not dampness, the micropore on film surface can be not closed yet or dwindles, after humidifier restarts work; Hollow-fibre membrane 8 still can optionally make water pass through, thereby can make external-compression type hollow-fibre membrane humidifier under the weather conditions of drying, use and need not to increase technology repeatedly.When humidifier moves, keep the transmembrane pressure≤0.001MPa of said hollow-fibre membrane 8, permeate water optionally when said hollow-fibre membrane 8 is not dampness.
Said seal member is that commercially available epoxy resin or polyurethane are filled between said housing 1 inwall and said hollow-fibre membrane 8 outer walls through modes such as casting, coating, sprinklings, and solidifies the parts that the back forms.
The course of work of external-compression type hollow-fibre membrane humidifier according to the invention is:
Utilize the micro pump of water inlet 4 that water is pumped in the water flow passage 6, simultaneously by feeding dry air in the air flow channel 7 of air inlet 2 in hollow-fibre membrane 8; Water in water flow passage 6 along the axial flow of hollow-fibre membrane 8.Simultaneously also along the axial flow of hollow-fibre membrane 8, but flow direction and current are opposite in air flow channel 7 for dry air.When the transmembrane pressure of doughnut film 8≤0.001MPa, the water infiltration forms water curtain through hollow-fibre membrane 8 backs in the inside of hollow-fibre membrane 8.Dry air in the air flow channel 7 utilizes the latent heat of self that water curtain is evaporated during through water curtain, obtains the air behind the humidification.The water that has little time to permeate through film is discharged humidifier by delivery port 5, and moistening air is discharged humidifier by gas outlet 3 and is used to add wet environment.Humidifier is out of service to be placed in the dry environment after a period of time; Hollow-fibre membrane 8 surfaces no longer are dampness; Closure does not take place or dwindles in the micropore on film surface; After humidifier restarted operation, water still can pass through hollow-fibre membrane 8 under the effect of hollow-fibre membrane 8 transmembrane pressures, thereby made external-compression type hollow-fibre membrane humidifier recover operate as normal.
Test case
(1) adopt external-compression type hollow-fibre membrane humidifier according to the invention to test.
Test environment is 24 ℃ of dry-bulb temperatures, 15.5 ℃ of wet-bulb temperature, and the housing 1 of external-compression type hollow-fibre membrane humidifier is of a size of φ 90X150mm, and employed hollow-fibre membrane 8 internal diameters are 4mm, with the power consumption of the frequency converter record humidifier that connects the humidifier blower fan.During test, start power supply, with micro pump the water in the water tank is imported in the humidifiers by water inlet 4, the water that is flowed out by delivery port 5 draws in the recovery tank.Water tank is placed on the electronic balance, is used for the variation of weighing quantity of water in water tank, in hollow-fibre membrane 8, feeds dry air through blower fan through the air inlet 2 of humidifier simultaneously, and the air behind the humidification is discharged by gas outlet 3.Timing when opening humidifier, and the power data that record electronic balance data variation, frequency converter show in the stable back of humidifier changes, through test, when the humidification amount after keeping humidifier stable was 240g/h, the power that is consumed was 30w; Humidifier is in humidification, and no liquid water flows out in the air flow channel 7 of hollow-fibre membrane 8 inside.
Placement 8 hours is closed in above-mentioned humidifier unlatching after 2 hours; And hollow-fibre membrane 8 does not carry out any processing in put procedure; 50 times so repeatedly, all to test according to said process at every turn, the humidification amount that records after each humidifier stable operation is 240 ± 10g/h.
(2) adopt the external-compression type hollow-fibre membrane humidifier of the prior art that the hollow-fibre membrane 8 of internal diameter 1mm makes and testing.
Test environment is 24 ℃ of dry-bulb temperatures, 15.5 ℃ of wet-bulb temperature; The housing 1 of external-compression type hollow-fibre membrane humidifier is of a size of φ 90X150mm; Employed hollow-fibre membrane 8 internal diameters are 1mm; With the power consumption of the frequency converter record humidifier that connects humidifier, and with the discharge of flowmeter survey water inlet 4; During test; Start power supply, with micro pump the water in the water tank is imported in the humidifiers by water inlet 4, the water that is flowed out by delivery port 5 draws in the recovery tank; Water tank is placed on the electronic balance; Be used for the variation of weighing quantity of water in water tank, in hollow-fibre membrane 8, feed dry air through blower fan through the air inlet 2 of humidifier simultaneously, the air behind the humidification is discharged by gas outlet 3; Timing when opening humidifier; And the power data that record electronic balance data variation, frequency converter show in the stable back of humidifier changes and the numerical value of flowmeter; Through test; When the humidification amount after keeping humidifier stable was 240g/h, the power that is consumed was 120w, the existing commercially available humidifier 25% of humidification efficiency deficiency of humidifier; Humidifier constantly has aqueous water to flow out from hollow-fibre membrane 8 inner air flow channels 7 in humidification.
Placement 8 hours is closed in above-mentioned humidifier unlatching after 2 hours; And hollow-fibre membrane 8 does not carry out any processing in put procedure; 50 times so repeatedly, all to test according to said process at every turn, the humidification amount that records after humidifier is stablized for the first time is 240g/h; From the humidification quantitative change that begins for the second time humidifier is 0, can't use.
Contrasting above-mentioned two test cases can draw:
(1) when external environment is identical, reach identical humidification effect, the power consumption of the energy consuming ratio prior art external-compression type hollow-fibre membrane humidifier of external-compression type hollow-fibre membrane humidifier according to the invention is low.
(2) when external environment is identical, reach identical humidification effect, no liquid water flows out in the air flow channel 7 of external-compression type hollow-fibre membrane humidifier according to the invention hollow-fibre membrane 8 inside in the process of humidification; And prior art external-compression type hollow-fibre membrane humidifier constantly has aqueous water from air flow channel 7, to flow out in running.
(3) through using repeatedly, and hollow-fibre membrane 8 do not carry out any processing in put procedure, and the humidification amount of external-compression type hollow-fibre membrane humidifier according to the invention is comparatively stable.And prior art is because hollow-fibre membrane 8 surfaces of adopting when not being dampness, and its surperficial micropore closure can take place or dwindles, and irrecoverable, so the external-compression type hollow-fibre membrane humidifier of prior art can't reuse.
Though the present invention has carried out detailed elaboration through above-mentioned specific embodiment to it; But; Any form that does not exceed the claim protection domain that those skilled in the art should be understood that on this basis to be made and the variation of details all belong to invention which is intended to be protected.
Claims (9)
1. an external-compression type hollow-fibre membrane humidifier comprises housing (1), is arranged on water inlet (4) on the said housing (1), delivery port (5), air inlet (2) and gas outlet (3);
And being arranged on the hollow fiber membrane bundle body in the said housing (1), said hollow fiber membrane bundle body is formed by the hollow-fibre membrane with air flow channel (7) (8) boundling;
In said housing (1), be provided with first seal member and second seal member that are connected with said housing (1) inwall, said first seal member and second seal member are with the inner first separate flow area, current district and second flow area of being separated into successively vertically of said housing (1);
Said water inlet (4) and delivery port (5) are connected with said current district; Said air inlet (2) is connected with said first flow area or second flow area, and said gas outlet (3) correspondingly are connected with said second flow area or first flow area;
Said first seal member is run through at the two ends of said hollow fiber membrane bundle body respectively and second seal member extends into said first flow area and said second flow area;
In said current district, be shaped to water flow passage (6) between said housing (1) inwall and said hollow-fibre membrane (8) outer wall;
It is characterized in that,
The internal diameter of said hollow-fibre membrane (8) is 2-5mm.
2. hollow-fibre membrane humidifier according to claim 1; It is characterized in that said hollow-fibre membrane (8) material is one or more in Kynoar, polyvinyl chloride, polyethylene, polyether sulfone, polyacrylonitrile, polyvinyl alcohol, polyvinyl butyral resin and the polyurethane.
3. hollow-fibre membrane humidifier according to claim 1 and 2 is characterized in that, the thickness of said hollow-fibre membrane (8) is 0.3-0.5mm.
4. according to the arbitrary described hollow-fibre membrane humidifier of claim 1-3, it is characterized in that the micropore size≤0.2 μ m on said hollow-fibre membrane (8) surface.
5. according to the arbitrary described hollow-fibre membrane humidifier of claim 1-4, it is characterized in that the porosity on said hollow-fibre membrane (8) surface is 68%-75%.
6. according to the arbitrary described hollow-fibre membrane humidifier of claim 1-5; It is characterized in that; Transmembrane pressure≤the 0.001MPa of said hollow-fibre membrane (8); The aperture on said hollow-fibre membrane (8) surface is 0.1-0.2 μ m, when porosity is 68%-75%, the water in the said water flow passage (6) sees through said hollow-fibre membrane (8), and at the inner water curtain that forms of said hollow-fibre membrane (8).
7. according to the arbitrary described hollow-fibre membrane humidifier of claim 1-6, it is characterized in that said water inlet (4) is provided with near said gas outlet (3), said delivery port (5) is provided with near said air inlet (2).
8. according to the arbitrary described hollow-fibre membrane humidifier of claim 1-7, it is characterized in that said first seal member, second seal member be perpendicular to the axis setting of said housing (1), and be parallel to each other.
9. according to the arbitrary described hollow-fibre membrane humidifier of claim 1-8, it is characterized in that said water inlet (4) is connected with micro pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100798050A CN102607126A (en) | 2012-03-23 | 2012-03-23 | External pressure hollow fiber membrane humidifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100798050A CN102607126A (en) | 2012-03-23 | 2012-03-23 | External pressure hollow fiber membrane humidifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102607126A true CN102607126A (en) | 2012-07-25 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143268A (en) * | 2013-03-06 | 2013-06-12 | 宁波净源膜科技有限公司 | Preparation method of polyvinylidene fluoride/polyurethane/polyvinyl chloride blend hollow fiber separation membrane |
| CN104162365A (en) * | 2014-08-08 | 2014-11-26 | 中建安装工程有限公司 | Countercurrent exchange membrane distillation device and method for treating salty waste water through same |
| CN105526658A (en) * | 2014-09-30 | 2016-04-27 | 青岛海尔智能技术研发有限公司 | Water distributor and humidification device |
| CN105999498A (en) * | 2016-08-08 | 2016-10-12 | 李迎春 | Breathing machine with humidifying function |
| CN106482272A (en) * | 2016-11-01 | 2017-03-08 | 金陵科技学院 | A kind of pellicle humidifier |
| CN109764736A (en) * | 2018-12-21 | 2019-05-17 | 北京空间飞行器总体设计部 | A kind of space microporous barrier evaporation efficient radiating apparatus |
| CN110052060A (en) * | 2019-04-24 | 2019-07-26 | 杭州科百特过滤器材有限公司 | A kind of doughnut degassing membrane component |
| CN110173785A (en) * | 2019-05-30 | 2019-08-27 | 广东美的制冷设备有限公司 | Humidifying filter core and the apparatus of air conditioning for the apparatus of air conditioning |
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| JP2005249256A (en) * | 2004-03-03 | 2005-09-15 | Matsushita Electric Ind Co Ltd | Hollow fiber membrane type humidifier |
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| CN1323073A (en) * | 2001-06-29 | 2001-11-21 | 李相一 | Working medium gas humidifier of fuel cell system |
| JP2004209418A (en) * | 2003-01-07 | 2004-07-29 | Nok Corp | Hollow fiber membrane module |
| JP2005249256A (en) * | 2004-03-03 | 2005-09-15 | Matsushita Electric Ind Co Ltd | Hollow fiber membrane type humidifier |
| CN101574612A (en) * | 2009-06-19 | 2009-11-11 | 华南理工大学 | Non-contact method for dehumidifying liquid and dehumidifier |
| CN101776309A (en) * | 2010-01-02 | 2010-07-14 | 华南理工大学 | Hollow fibre membrane air-conditioning water-free humidification system |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143268A (en) * | 2013-03-06 | 2013-06-12 | 宁波净源膜科技有限公司 | Preparation method of polyvinylidene fluoride/polyurethane/polyvinyl chloride blend hollow fiber separation membrane |
| CN103143268B (en) * | 2013-03-06 | 2015-08-12 | 浙江净源膜科技有限公司 | The preparation method of polyvinylidene fluoride/polyurethane/polyvinyl chloride blend hollow fiber separation membrane |
| CN104162365A (en) * | 2014-08-08 | 2014-11-26 | 中建安装工程有限公司 | Countercurrent exchange membrane distillation device and method for treating salty waste water through same |
| CN105526658A (en) * | 2014-09-30 | 2016-04-27 | 青岛海尔智能技术研发有限公司 | Water distributor and humidification device |
| CN105999498A (en) * | 2016-08-08 | 2016-10-12 | 李迎春 | Breathing machine with humidifying function |
| CN105999498B (en) * | 2016-08-08 | 2019-05-21 | 禚玉香 | A kind of ventilator with humidification function |
| CN106482272A (en) * | 2016-11-01 | 2017-03-08 | 金陵科技学院 | A kind of pellicle humidifier |
| CN106482272B (en) * | 2016-11-01 | 2019-01-29 | 金陵科技学院 | A kind of semi-permeable membrane humidifier |
| CN109764736A (en) * | 2018-12-21 | 2019-05-17 | 北京空间飞行器总体设计部 | A kind of space microporous barrier evaporation efficient radiating apparatus |
| CN110052060A (en) * | 2019-04-24 | 2019-07-26 | 杭州科百特过滤器材有限公司 | A kind of doughnut degassing membrane component |
| CN110052060B (en) * | 2019-04-24 | 2022-07-01 | 杭州科百特过滤器材有限公司 | Hollow fiber degassing membrane module |
| CN110173785A (en) * | 2019-05-30 | 2019-08-27 | 广东美的制冷设备有限公司 | Humidifying filter core and the apparatus of air conditioning for the apparatus of air conditioning |
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Application publication date: 20120725 |