CN103301754B - The detection system in a kind of membrane module service life and method - Google Patents
The detection system in a kind of membrane module service life and method Download PDFInfo
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- CN103301754B CN103301754B CN201310259818.0A CN201310259818A CN103301754B CN 103301754 B CN103301754 B CN 103301754B CN 201310259818 A CN201310259818 A CN 201310259818A CN 103301754 B CN103301754 B CN 103301754B
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Abstract
The detection system in membrane module service life and a method, belong to micro-filtration or hyperfiltration technique field.This system comprises inlet water tank, intake pump, inlet/outlet magnetic valve, Pressure gauge, heating unit and control unit.First membrane module is linked in detection system, after the water heating in water tank, opens entering water electromagnetic valve, close out water solenoid valve, make the surge in membrane module reach authorized pressure, with stipulated time pressurize; Then open out water solenoid valve, close entering water electromagnetic valve, Quick drainage pressure release to zero, inlet water tank is sent in water outlet back to; Pressurize operation and pressure discharge operations cycle alternation are carried out, and circulating cycle issue is at least 100,000 times.The present invention is by surge pressurize and the alternate cycles in pressure release cycle, and analogue membrane assembly is applying the force-bearing situation of circulation impact active force in running, the packaging effect of evaluated for film assembly rubber seal end face effectively, thus judges the service life of membrane module.
Description
Technical field
The present invention relates to detection system and the method thereof in a kind of membrane module service life, belong to micro-filtration or milipore filter field.
Background technology
Water treatment is one of key issue of environmental protection; water technology receives great attention; as the great innovative technique of water treatment field; micro-filtration/Ultra filtration membrane technology is the new technology that a kind of environmental protection and energy saving are had both; compared with other water technologies, treatment effeciency is high, effective, energy consumption is low.In recent years, along with the successful exploitation of novel film materials and membrane process, supermicro filtration membrane isolation technics, as water separating membrane treatment technology fast-developing in recent years, has been used to the stain disease process of the industries such as iron and steel, electric power, petrochemical industry, medicine, textile printing and dyeing, desalinization, municipal administration.
The core technology of micro-filtration/hyperfiltration membrane assembly is the preparation of micro-filtration/milipore filter, and the closed-end technology of stack face is also very crucial, and the encapsulation quality of end face will directly determine mechanical property and the service life of micro-filtration/hyperfiltration membrane assembly.In the running of membrane module, removed by the minute aperture of film and be suspended material and bacterium etc. in water, thus obtain the filtered water clarified.But, carry out long-time continuous filtration, filter pressure is caused to rise, membrane module encapsulation end face will bear larger pressure, especially clean frequent impact etc., cause the cracking of the membrane module encapsulation end face of many engineer applied, dense/to produce water mixing, form invalid membrane separating process, frequently must change membrane module, increase economic investment.Performance Detection at present for micro-filtration or hyperfiltration membrane assembly is mainly the product water water yield, SDI, transmembrane pressure, turbidity, molecular cut off etc., but it is little about the end face packaging effect evaluation of micro-filtration or hyperfiltration membrane assembly, patent CN1684755A provides one withstand voltage test repeatedly for the encapsulation of membrane module, first make test specimen, repeatedly pressurizeing from the side of stack face, bleed off pressure, there is the cycle-index in crack in test sample.The resistance to pressure of end face is only tested in this test, do not simulate the circulation impact active force suffered by end face actual motion, and cycle-index is on the low side.And the effect assessment after the circulation of long-term surge is stood for membrane module encapsulation end face, and then judge also there is no a kind of effective method at present the service life determining membrane module.
Summary of the invention
The object of the present invention is to provide detection system and the method in a kind of membrane module service life, by the alternately impinge to membrane module encapsulation end face, the force-bearing situation of analogue membrane assembly circulation impact power effect in actual moving process, effectively to evaluate the packaging effect of membrane module rubber seal end face, thus judge the service life of membrane module.
Technical scheme of the present invention is as follows:
The system in membrane module service life, is characterized in that: described detection system comprises membrane module, inlet water tank, intake pump and control unit; In inlet water tank, be provided with heater, the bottom of inlet water tank is connected with the import of intake pump, and water inlet delivery side of pump is connected with the import of membrane module by inlet pipeline, and the outlet of membrane module is connected with inlet water tank by outlet pipeline; Inlet pipeline is installed into water solenoid valve and Pressure gauge respectively, outlet pipeline installs out water solenoid valve; Described control unit respectively by control circuit and described intake pump, entering water electromagnetic valve, Pressure gauge, go out water solenoid valve and be connected with heater.
The detection method in a kind of membrane module provided by the invention service life, is characterized in that said method comprising the steps of:
1) membrane module is linked in detection system, first utilizes heater that the water in water tank is heated to set point of temperature, then open entering water electromagnetic valve, close out water solenoid valve;
2) pressurize operation: start intake pump and make intaking from membrane module water inlet in water tank, regulate inflow to make the surge P in assembly reach 0.3 ~ 0.5MPa, the dwell period time is 10 ~ 30s;
3) pressure discharge operations: open out water solenoid valve, closes entering water electromagnetic valve, Quick drainage pressure release to zero, and pressure release cycle time is 5 ~ 15s, and inlet water tank is sent in water outlet back to;
4) step 2 is repeated) ~ 3), pressurize operation and pressure discharge operations cycle alternation are carried out, and circulating cycle issue is at least 100,000 times.
The present invention has the following advantages and high-lighting effect: the present invention is by surge pressurize and the alternate cycles in pressure release cycle, the force-bearing situation of analogue membrane assembly circulation impact active force in application running, the packaging effect of evaluated for film assembly rubber seal end face effectively, thus judge the service life of membrane module.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of detection system of the present invention.
Fig. 2 is the circulation impact active force change curve in detection method test process of the present invention.
In figure: 20-detection system; 21-membrane module; 22-Pressure gauge; 23-entering water electromagnetic valve; 24-intake pump; 25-heating unit; 26-inlet water tank; 27-control unit; 28-goes out water solenoid valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, system architecture of the present invention, principle and detection method are described further.
Fig. 1 is the structural principle schematic diagram of detection system of the present invention, and described detection system comprises membrane module 21, inlet water tank 26, intake pump 24 and control unit 27; In inlet water tank, be provided with heater 25, the bottom of inlet water tank is connected with the import of intake pump, and water inlet delivery side of pump is connected with the import of membrane module by inlet pipeline, and the outlet of membrane module is connected with inlet water tank by outlet pipeline; Inlet pipeline is installed into water solenoid valve 23 and Pressure gauge 22 respectively, outlet pipeline is installed out water solenoid valve 28; Described control unit respectively by control circuit and described intake pump 24, entering water electromagnetic valve 23, Pressure gauge 22, go out water solenoid valve and be connected with heater.Concrete testing process is as follows:
1) first membrane module is linked in detection system 20, first utilizes heater that the water in water tank is heated to set point of temperature, then open entering water electromagnetic valve, close out water solenoid valve;
2) pressurize operation: start intake pump and make intaking from membrane module water inlet in water tank, regulating inflow to make the surge P in assembly reach surge is 0.3 ~ 0.5MPa, with stipulated time (t
2-t
1) carry out pressurize (shown in Fig. 2), the general dwell period time is 10 ~ 30s;
3) pressure discharge operations: open out water solenoid valve, close entering water electromagnetic valve, Quick drainage pressure release to zero, with stipulated time (t
3-t
2) maintaining pressure release (Fig. 2 shown in), general pressure release cycle time is 5 ~ 15s, and inlet water tank is sent in water outlet back to;
4) step 2 is repeated) ~ 3), pressurize operation and pressure discharge operations cycle alternation are carried out, and circulating cycle issue is at least 100,000 times.
Embodiment:
Embodiment 1
By in six inches of Kynoar pillar hyperfiltration membrane assembly 1 access testing systems, by heating unit adjustment inlet water tank water temperature to after 45 DEG C, by control unit, entering water electromagnetic valve is opened, water outlet closed electromagnetic valve, start intake pump water is pumped into from membrane module water inlet, inflow is regulated to make the surge in assembly reach 0.3MPa fast, time pressurize 10s; Then by control unit, will go out water solenoid valve and open, entering water electromagnetic valve is closed, Quick drainage pressure release to zero, pressure release 5s; By control unit, pressurize operation and pressure discharge operations cycle alternation are carried out, membrane module maintains circulating cycle issue 100,000 times, the non-cracking failure of membrane module encapsulation end face.
Embodiment 2
With embodiment 1, inflow temperature is 25 DEG C, and surge is 0.5MPa, dwell time 30s, venting duration 15s, and assembly maintains cycle pulse 100,000 times, the non-cracking failure of membrane module encapsulation end face.
Embodiment 3
With embodiment 1, inflow temperature is 5 DEG C, and surge is 0.4MPa, dwell time 20s, venting duration 10s, and assembly maintains cycle pulse 100,000 times, the non-cracking failure of membrane module encapsulation end face.
Embodiment 4
With embodiment 1, membrane module adopts six inches of Kynoar pillar hyperfiltration membrane assemblies 2, and after assembly maintains circulating cycle issue 30,000 times, membrane module encapsulation end face cracking leaks.
Claims (1)
1. the detection method in membrane module service life, it is characterized in that, this detection method utilizes following detection system: this system comprises membrane module (21), inlet water tank (26), intake pump (24) and control unit (27); In inlet water tank, be provided with heater (25), the bottom of inlet water tank is connected with the import of intake pump, and water inlet delivery side of pump is connected with the import of membrane module by inlet pipeline, and the outlet of membrane module is connected with inlet water tank by outlet pipeline; Inlet pipeline is installed into water solenoid valve (23) and Pressure gauge (22) respectively, outlet pipeline is installed out water solenoid valve (28); Described control unit respectively by control circuit and described intake pump, entering water electromagnetic valve (23), Pressure gauge (22), go out water solenoid valve (28) and be connected with heater (25), its detection method comprises the steps:
1) membrane module is linked in detection system, first utilizes heater that the water in water tank is heated to set point of temperature, then open entering water electromagnetic valve, close out water solenoid valve;
2) pressurize operation: start intake pump and make intaking from membrane module water inlet in water tank, regulate inflow to make the surge P in assembly reach 0.4 ~ 0.5MPa, the dwell period time is 10s ~ 30s;
3) pressure discharge operations: open out water solenoid valve, closes entering water electromagnetic valve, Quick drainage pressure release to zero, and pressure release cycle time is 5s ~ 15s, and inlet water tank is sent in water outlet back to;
4) step 2 is repeated) ~ 3), pressurize operation and pressure discharge operations cycle alternation are carried out, and circulating cycle issue is at least 100,000 times.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310259818.0A CN103301754B (en) | 2013-06-26 | 2013-06-26 | The detection system in a kind of membrane module service life and method |
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| CN201310259818.0A CN103301754B (en) | 2013-06-26 | 2013-06-26 | The detection system in a kind of membrane module service life and method |
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| CN103301754A CN103301754A (en) | 2013-09-18 |
| CN103301754B true CN103301754B (en) | 2015-10-28 |
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| CN111589306B (en) * | 2020-05-19 | 2022-04-29 | 海南立昇净水科技实业有限公司 | Anti-fatigue testing equipment for shedding performance of membrane silk membrane shell |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004188252A (en) * | 2002-12-09 | 2004-07-08 | Sanki Eng Co Ltd | Membrane filtration apparatus and its operating method |
| CN1684755A (en) * | 2002-09-27 | 2005-10-19 | 三菱丽阳株式会社 | Hollow fiber membrane module, hollow fiber membrane module unit, membrane filtration device using the same and method of operating the same |
| CN201237588Y (en) * | 2008-08-01 | 2009-05-13 | 山东恒沣膜科技有限公司 | Film component performance deamplification test machine |
| CN102192800A (en) * | 2010-03-09 | 2011-09-21 | 微创医疗器械(上海)有限公司 | Hydraulic test system |
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- 2013-06-26 CN CN201310259818.0A patent/CN103301754B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1684755A (en) * | 2002-09-27 | 2005-10-19 | 三菱丽阳株式会社 | Hollow fiber membrane module, hollow fiber membrane module unit, membrane filtration device using the same and method of operating the same |
| JP2004188252A (en) * | 2002-12-09 | 2004-07-08 | Sanki Eng Co Ltd | Membrane filtration apparatus and its operating method |
| CN201237588Y (en) * | 2008-08-01 | 2009-05-13 | 山东恒沣膜科技有限公司 | Film component performance deamplification test machine |
| CN102192800A (en) * | 2010-03-09 | 2011-09-21 | 微创医疗器械(上海)有限公司 | Hydraulic test system |
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Denomination of invention: Detection system and method for service life of membrane module Effective date of registration: 20170217 Granted publication date: 20151028 Pledgee: Haidian Beijing science and technology enterprise financing Company limited by guarantee Pledgor: Beijing Scino Membrance Technology Co., Ltd. Registration number: 2017990000111 |
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