CN102512969B - Synchronous measurement device for streaming potential of hollow fiber membrane mask hole - Google Patents
Synchronous measurement device for streaming potential of hollow fiber membrane mask hole Download PDFInfo
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- CN102512969B CN102512969B CN201110377699XA CN201110377699A CN102512969B CN 102512969 B CN102512969 B CN 102512969B CN 201110377699X A CN201110377699X A CN 201110377699XA CN 201110377699 A CN201110377699 A CN 201110377699A CN 102512969 B CN102512969 B CN 102512969B
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Abstract
The invention discloses a synchronous measurement device for a streaming potential of a hollow fiber membrane mask hole. The synchronous measurement device comprises two disc-shaped silver-silver chloride electrodes, an annular silver-silver chloride electrode, two electrode bases, a water inlet chamber, a membrane wire filling chamber, a membrane assembly and a water outlet cavity, wherein the water inlet chamber and the water outlet chamber are respectively provided with one electrode base, and the disc-shaped silver-silver chloride electrodes are fixed on the electrode bases. The synchronous measurement device also comprises a water inlet pipe, a water inlet piezometric tube, water outlet pipes and water outlet piezometric tubes. The membrane wire filling chamber is provided with a membrane surface water outlet pipe, a membrane surface piezometric tube and a water outlet hole, the water outlet hole enables the membrane wire filling chamber to be communicated with a silver ring electrode chamber, and the annular silver-silver chloride electrode is arranged in the silver ring electrode chamber. Through controlling the water outletting of the water outlet pipes in different chambers, a membrane surface streaming potential and a membrane hole streaming potential as well as a membrane surface pressure loss corresponding to the membrane surface streaming potential and a membrane hole pressure loss corresponding to the membrane hole streaming potential of the hollow fiber membrane can be measured, and further the membrane surface streaming potential and the membrane hole streaming potential can be determined.
Description
Technical field
The present invention relates to the determinator of the streaming potential in a kind of hollow fiber membrane mask hole, the determinator that belongs to a kind of streaming potential of doughnut use, the online streaming potential of face, fenestra related in particular in a kind of Middle hollow fiber membrane process is measured and the Zeta potential estimation.
Background technology
Membrane separation technique is more and more extensive in sector applications such as biochemistry, food, medical medical science, precise electronic, water treatments.Particularly hollow-fibre membrane has very large specific area thereby very high productive rate is arranged, and the development in recent years application is very fast.The problem of at first encountering while using membrane separation technique is the selection of membrane material, the selection of membrane material is except the biochemical stability and mechanical performance of the character of considering separating medium and film that operating condition requires, and the moving electrical characteristics of face and fenestra have material impact to separating effect.In addition, the problems such as the flux decline that film has incrustation in film surface or fenestra (fouling) pollution to cause in using separation and the reduction of selection permeability, therefore must carry out periodic cleaning to recover membrane flux, in fact, the pollution of film can cause the moving electrical property in the surface of film to change, therefore can be by the moving electrical characteristics evaluated for film pollution level of face and fenestra and the effect of cleaning.At present the existing various streaming potentials of hollow-fibre membrane being measured is all single mensuration face streaming potentials, can not measure respectively face, the fenestra streaming potential, and then can't estimate face, fenestra Zeta potential and pollute between relation, lack with face, fenestra Zeta potential, membrane material being selected and being polluted and the disappearance of the judgement of cleaning.Zeta potential is the critical nature of face, can't directly measure, and can pass through the streaming potential indirect determination.
Summary of the invention
The purpose of this invention is to provide a kind of synchronous measurement device for streaming potential of hollow fiber membrane mask hole.
The present invention is synchronous measurement device for streaming potential of hollow fiber membrane mask hole, a water inlet chamber 1 cylindraceous and a water outlet chamber 4 cylindraceous are arranged, the left end of film silk filled chamber 2 is connected with the cylinder end of water inlet chamber 1, the right-hand member of film silk filled chamber 2 is connected with the cylinder end of membrane module 5 cylindraceous, the right-hand member of membrane module 5 is connected with the left end of water outlet chamber 4, one water inlet pipe 1-1 is installed on the cylindric chamber wall of water inlet chamber 1, be positioned on the chamber wall of water inlet pipe 1-1 the same side the first pressure-measuring pipe 1-2 is installed at water inlet chamber 1, the first outlet pipe 4-2 is installed on the wall of the cylindric chamber of water outlet chamber 4, be positioned at water outlet chamber 4 on the chamber wall of first outlet pipe 4-2 the same side the second pressure-measuring pipe 4-1 is installed, round loop electrode chamber 3 is threaded connection, be arranged on the outer wall of film silk filled chamber 2, on the close outer wall of round loop electrode chamber 3, the 3rd pressure-measuring pipe 2-2 is installed on film silk filled chamber 2, the second outlet pipe 2-1 is installed on the chamber wall relative with the 3rd pressure-measuring pipe 2-2 on film silk filled chamber 2, on the chamber wall of film silk filled chamber 2 and the film silk filled chamber 2 of the section of being connected of round loop electrode chamber 3, have aperture 2 ', a columned electrode base 7 is crossed to be threaded and is arranged on the cylinder end of water chamber 1 left end, another columned electrode base 7 ' be arranged on the cylinder end of water outlet chamber 4 right-hand members, two electrode bases 7,7 ' on be separately installed with the first silver-silver chloride electrode 6-1, the second silver-silver chloride electrode 6-2 in the through hole offered, the silver-silver chloride electrode 8 of an annular is installed in round loop electrode chamber 3.
The present invention can measure efficiently and accurately by optionally closing outlet pipe streaming potential and the corresponding operating pressure of face or fenestra, thereby can study the Zeta potential of face, fenestra and the relation between the two.
The accompanying drawing explanation
Fig. 1 is structure chart of the present invention, Fig. 2 be A-A in Fig. 1 to cutaway view, Fig. 3 is the partial enlarged drawing at the I place in Fig. 1.
The specific embodiment
As shown in Figure 1, the present invention is synchronous measurement device for streaming potential of hollow fiber membrane mask hole, a water inlet chamber 1 cylindraceous and a water outlet chamber 4 cylindraceous are arranged, the left end of film silk filled chamber 2 is connected with the cylinder end of water inlet chamber 1, the right-hand member of film silk filled chamber 2 is connected with the cylinder end of membrane module 5 cylindraceous, and membrane module 5 is with after epoxy sealing, putting in lucite tube and make by the film silk of some.The right-hand member of membrane module 5 is connected with the left end of water outlet chamber 4, one water inlet pipe 1-1 is installed on the cylindric chamber wall of water inlet chamber 1, be positioned on the chamber wall of water inlet pipe 1-1 the same side the first pressure-measuring pipe 1-2 is installed at water inlet chamber 1, the first outlet pipe 4-2 is installed on the wall of the cylindric chamber of water outlet chamber 4, be positioned at water outlet chamber 4 on the chamber wall of first outlet pipe 4-2 the same side the second pressure-measuring pipe 4-1 is installed, round loop electrode chamber 3 is threaded connection, be arranged on the outer wall of film silk filled chamber 2, on the close outer wall of round loop electrode chamber 3, the 3rd pressure-measuring pipe 2-2 is installed on film silk filled chamber 2, the second outlet pipe 2-1 is installed on the chamber wall relative with the 3rd pressure-measuring pipe 2-2 on film silk filled chamber 2, on the chamber wall of film silk filled chamber 2 and the film silk filled chamber 2 of the section of being connected of round loop electrode chamber 3, have aperture 2 ', a columned electrode base 7 is crossed to be threaded and is arranged on the cylinder end of water chamber 1 left end, another columned electrode base 7 ' be arranged on the cylinder end of water outlet chamber 4 right-hand members, two electrode bases 7,7 ' on be separately installed with the first silver-silver chloride electrode 6-1, the second silver-silver chloride electrode 6-2 in the through hole offered, the silver-silver chloride electrode 8 of an annular is installed in round loop electrode chamber 3.
As shown in Figure 1 and Figure 2, the equal diameters of water inlet chamber 1 and water outlet chamber 4, the left end of film silk filled chamber 2 is connected with the cylinder end of water inlet chamber 1 by screw thread, the right-hand member of film silk filled chamber 2 is connected with the cylinder end of membrane module 5 cylindraceous by screw thread, and the right-hand member of membrane module 5 is connected with the left end of water outlet chamber 4 by screw thread.
As shown in Figure 1, Figure 3, film silk filled chamber 2, round loop electrode chamber 3 are cylinder, and the diameter of film silk filled chamber 2 is less than the diameter of round loop electrode chamber 3.
As shown in Figure 1, water inlet pipe 1-1 can control water inlet, the first outlet pipe 4-2, the second outlet pipe 2-1 can control respectively fenestra water outlet and the face water outlet of hollow-fibre membrane, by the first pressure-measuring pipe 1-2, the 3rd pressure-measuring pipe 2-2 can measure the pressure loss of hollow-fibre membrane face, by pressure-measuring pipe the first pressure-measuring pipe 1-2, the second pressure-measuring pipe 4-1 can measure the pressure loss of hollow-fibre membrane fenestra, by the first silver-silver chloride electrode 6-1, the second silver-silver chloride electrode 6-2 measures the streaming potential of hollow-fibre membrane fenestra, by the first silver-silver chloride electrode 6-1, the second silver-silver chloride electrode 6-2 and silver-silver chloride annular electrode 8 are measured the streaming potential of face.
The course of work of the present invention is: the first outlet pipe 4-2 water outlet can record the streaming potential at fenestra two ends by two silver-silver chloride electrodes during the second not water outlet of outlet pipe 2-1; Can measure the pressure loss at hollow-fibre membrane fenestra two ends by the first pressure-measuring pipe 1-2, the second pressure-measuring pipe 4-1.Close the first outlet pipe 4-2, during the second outlet pipe 2-1 water outlet, can measure by two silver-silver chloride electrodes and annular silver-colored monochlor(in)ate silver electrode 8 streaming potential of hollow-fibre membrane face; And by the pressure loss of the first pressure-measuring pipe 1-2, the 3rd pressure-measuring pipe 2-2 mensuration face.The first outlet pipe 4-2, the second outlet pipe 2-1 water outlet simultaneously, can record the streaming potential at fenestra two ends by two silver-silver chloride electrodes, can measure the pressure loss at hollow-fibre membrane fenestra two ends by the first pressure-measuring pipe 1-2, the second pressure-measuring pipe 4-1; Can measure by two silver-silver chloride electrodes and silver-silver chloride annular electrode 8 streaming potential of hollow-fibre membrane face, and measure the pressure loss of face by the first pressure-measuring pipe 1-2, the 3rd pressure-measuring pipe 2-2.
Claims (3)
1. synchronous measurement device for streaming potential of hollow fiber membrane mask hole, a water inlet chamber cylindraceous (1) and a water outlet chamber cylindraceous (4) are arranged, the left end that it is characterized in that film silk filled chamber (2) is connected with the cylinder end of water inlet chamber (1), the right-hand member of film silk filled chamber (2) is connected with the cylinder end of membrane module cylindraceous (5), the right-hand member of membrane module (5) is connected with the left end of water outlet chamber (4), one water inlet pipe (1-1) is installed on the cylindric chamber wall of water inlet chamber (1), be positioned on the chamber wall of water inlet pipe (1-1) the same side the first pressure-measuring pipe (1-2) is installed at water inlet chamber (1), the first outlet pipe (4-2) is installed on the wall of the cylindric chamber of water outlet chamber (4), be positioned at water outlet chamber (4) on the chamber wall of the first outlet pipe (4-2) the same side the second pressure-measuring pipe (4-1) is installed, round loop electrode chamber (3) is threaded connection, be arranged on the outer wall of film silk filled chamber (2), upper near the 3rd pressure-measuring pipe (2-2) is installed on the outer wall of round loop electrode chamber (3) at film silk filled chamber (2), on the upper chamber wall relative with the 3rd pressure-measuring pipe (2-2) of film silk filled chamber (2), the second outlet pipe (2-1) is installed, have aperture (2 ') on the chamber wall of film silk filled chamber (2) and the film silk filled chamber (2) of the section of being connected of round loop electrode chamber (3), a columned electrode base (7) is crossed to be threaded and is arranged on the cylinder end of water chamber (1) left end, another columned electrode base (7 ') is arranged on the cylinder end of water outlet chamber (4) right-hand member, be separately installed with the first silver-silver chloride electrode (6-1), the second silver-silver chloride electrode (6-2) in the through hole of offering on two electrode bases (7,7 '), the silver-silver chloride electrode (8) of an annular is installed in round loop electrode chamber (3).
2. synchronous measurement device for streaming potential of hollow fiber membrane mask hole according to claim 1, it is characterized in that into the equal diameters of water chamber (1) and water outlet chamber (4), the left end of film silk filled chamber (2) is connected with the cylinder end of water inlet chamber (1) by screw thread, the right-hand member of film silk filled chamber (2) is connected with the cylinder end of membrane module cylindraceous (5) by screw thread, and the right-hand member of membrane module (5) is connected with the left end of water outlet chamber (4) by screw thread.
3. synchronous measurement device for streaming potential of hollow fiber membrane mask hole according to claim 1, it is characterized in that film silk filled chamber (2), round loop electrode chamber (3) are cylinder, the diameter of film silk filled chamber (2) is less than the diameter of round loop electrode chamber (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110377699XA CN102512969B (en) | 2011-11-24 | 2011-11-24 | Synchronous measurement device for streaming potential of hollow fiber membrane mask hole |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110377699XA CN102512969B (en) | 2011-11-24 | 2011-11-24 | Synchronous measurement device for streaming potential of hollow fiber membrane mask hole |
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| CN102512969A CN102512969A (en) | 2012-06-27 |
| CN102512969B true CN102512969B (en) | 2013-12-11 |
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| CN201110377699XA Expired - Fee Related CN102512969B (en) | 2011-11-24 | 2011-11-24 | Synchronous measurement device for streaming potential of hollow fiber membrane mask hole |
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| CN104888611B (en) * | 2015-05-21 | 2016-10-05 | 天津工业大学 | A kind of hollow fiber film assembly integrity detection device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020085370A (en) * | 2001-05-08 | 2002-11-16 | 한국과학기술연구원 | Equipment and method of bulk streaming potential measurement for the electrokinetic characterization of hollow-fiber membranes |
| CN1808149A (en) * | 2006-02-24 | 2006-07-26 | 国家海洋局杭州水处理技术研究开发中心 | Advection type membrane surface electric potential tester |
| CN101221198A (en) * | 2008-01-30 | 2008-07-16 | 清华大学 | Method and device for acquiring streaming potential of nano-filtration |
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2011
- 2011-11-24 CN CN201110377699XA patent/CN102512969B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020085370A (en) * | 2001-05-08 | 2002-11-16 | 한국과학기술연구원 | Equipment and method of bulk streaming potential measurement for the electrokinetic characterization of hollow-fiber membranes |
| CN1808149A (en) * | 2006-02-24 | 2006-07-26 | 国家海洋局杭州水处理技术研究开发中心 | Advection type membrane surface electric potential tester |
| CN101221198A (en) * | 2008-01-30 | 2008-07-16 | 清华大学 | Method and device for acquiring streaming potential of nano-filtration |
Non-Patent Citations (2)
| Title |
|---|
| PVDF膜低温等离子体改性及动电现象研究;王进辉;《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》;20091029;22-28 * |
| 王进辉.PVDF膜低温等离子体改性及动电现象研究.《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》.2009,22-28. |
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