CN206276248U - Diaphragm test device - Google Patents

Diaphragm test device Download PDF

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Publication number
CN206276248U
CN206276248U CN201621335689.4U CN201621335689U CN206276248U CN 206276248 U CN206276248 U CN 206276248U CN 201621335689 U CN201621335689 U CN 201621335689U CN 206276248 U CN206276248 U CN 206276248U
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Prior art keywords
test
diaphragm
pipeline
membrane probing
valve
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CN201621335689.4U
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Inventor
朱加生
钮振强
南晓东
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Nanjing Quan Membrane Technology Co Ltd
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Nanjing Quan Membrane Technology Co Ltd
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Abstract

The utility model proposes a kind of diaphragm test device, including pure water tank, test liquid case, booster pump, filter, Membrane probing unit, the pipeline between each part is mounted on valve, and pipe end in Membrane probing unit is equipped with dump valve;Membrane probing unit includes that influent side and multiple diaphragms of concentrated water side head and the tail series connection evaluate pond, and the concentrated water in least significant end diaphragm evaluation pond is surveyed and passes through pipeline connecting test liquid case;Test device is each configured with the output end of booster pump and filter.Adjusted by the working frequency of booster pump and test fluid is circulated to keep test fluid homogeneous, and different testing standard conditions can be provided;And pressure needed for pure water cleaning can be provided after the completion of test.The test device can also realize that batch is determined, and reduce workload consumption, reduce equipment cost, improve operating efficiency.

Description

Diaphragm test device
Technical field
The utility model belongs to wastewater treatment and field of seawater desalination, more particularly to a kind of diaphragm test device.
Background technology
The membrane technologies such as reverse osmosis membrane, NF membrane in environmentally friendly water treatment field, particularly in purification of water quality, waste water control and useless The aspects such as Water circulation, desalinization have turned into indispensable key technology, be widely used in electric power, oil, chemical industry, steel, The fields such as electronics, medicine, food and drink, municipal administration and environmental protection, in seawater and brackish water desalination, boiler feedwater, industrial pure water and electricity Prepared by sub- level ultra-pure water, drinking pure water production, is played an important role during wastewater treatment and special separation.It is presently commercially available Commercial reverse osmosis membrane, NF membrane product be typically the flat board that composite Materials Design is made that is made up of polymeric support layer Film, the test evaluation of diaphragm performance becomes particularly important in Flat Membrane production process.
Wherein, the subject matter that the diaphragm test device such as current counter-infiltration diaphragm, nanofiltration diaphragm is present includes:Device structure It is complicated, operating process is cumbersome, workload is big, testing efficiency is low, test result error is big etc..Above-mentioned factor have impact on current diaphragm Production efficiency and improved product efficiency.
The content of the invention
A kind of defect that the utility model exists for prior art, there is provided diaphragm test device, can online acquisition test The parameters such as liquid electrical conductivity, temperature.
There is provided diaphragm test device of the present utility model, is particularly well-suited to counter-infiltration diaphragm and nanofiltration diaphragm, its bag Include pure water tank, test liquid case, booster pump, filter, Membrane probing unit, pure water tank and test liquid case pass through pipeline respectively with increasing The input connection of press pump, the output end of booster pump is sequentially connected filter and Membrane probing unit by pipeline;Each part it Between pipeline be mounted on valve, and pipe end in Membrane probing unit is equipped with dump valve;Membrane probing unit include into Multiple diaphragms of water side and the head and the tail series connection of concentrated water side evaluate pond, and the concentrated water survey that least significant end diaphragm evaluates pond passes through pipeline connecting test Liquid case;The first test device is configured with supercharging pump output terminal, the test fluid performance parameter for testing supercharging pump output terminal; Filter output end is configured with the second test device, for testing the test fluid performance parameter after filtering.
Further, the output end of booster pump is connected to test fluid box-shaped into loop by pipeline, the first test device cloth Put in the loop;And valve is installed in pipeline.
Further, the first test device includes thermometer and/or pressure gauge, the test for testing supercharging pump output terminal Liquid temperature degree and/or pressure.Second test device includes one or more in pressure gauge, flowmeter and online conductivity meter.
Further, booster pump uses VFC booster pump, adjusts the frequency of booster pump, is circulated to test by pipeline Liquid is circulated and keeps test fluid homogeneous, can also be provided in test process and be adapted to test pressure, the test fluid of flow condition, and Pressure needed for pure water cleaning test device can be provided after the completion of test.
Further, Membrane probing unit includes at least two groups Membrane probing subelements in parallel, Membrane probing subelement Multiple diaphragms including at least two-way influent side in parallel and the head and the tail series connection of concentrated water side evaluate pond, and each Membrane probing subelement is most The concentrated water in end diaphragm evaluation pond returns to test liquid case after collecting by pipeline;Pacify respectively the front and back end of each Membrane probing subelement Equipped with valve.Each group test cell alternation or can work simultaneously, during one group can operationally complete other group test cells Diaphragm dismounting.
Further, sampling valve is additionally provided between Membrane probing unit and filter, for the sampling of test fluid.
Compared with prior art, test device described in the utility model has the advantages that:
(1) adjusted by the freq uency conversion supercharging pump of test device, to may be implemented in and determine diaphragm under the conditions of different testing standards Performance parameter, particularly flat plate reverse osmosis diaphragm and nanofiltration diaphragm.
(2) it is capable of achieving batch to determine, reduces workload consumption;Two groups of test cell alternations and dismounting, can significantly carry High workload efficiency.
(3) every sub- test cell of test device is independent mutually, can avoid influence of the inflow difference to test result;
(4) pure water tank is coordinated by the control between valve, is capable of achieving to carry out flushing of pipeline after determining every time, prevent test fluid To corrosion of piping;
(5) test device occupation of land is small, easy to operate, possess scalability.
Brief description of the drawings
Fig. 1 structural representations of the present utility model.
Wherein:1. liquid case is tested, 2. pure water tank, 3. freq uency conversion supercharging pump, 4. accurate filter, 5~22. diaphragms evaluate pond, 23. test liquid case control valves, 24. test fluid return valves, 25. accurate filter early gates, 26. accurate filter late gates, 27. First group of test cell imported valve, 28. first groups of test cell outlet valves, 29. second groups of test cell imported valves, 30. second groups of test cell outlet valves, 31. concentrated water regulating valves, 32. dump valves, 33. pure water water inlet control valves, 34. samplings Valve, 35~36. pressure gauges, 37. thermometers, 38. flowmeters, 39. online conductivity meters.
Specific embodiment
Following non-limiting examples can make one of ordinary skill in the art that the utility model is more fully understood, but The utility model is limited never in any form.To enable above-mentioned purpose of the present utility model, feature and advantage more obvious easily Understand, the utility model is described in further detail with reference to the accompanying drawings and detailed description.
The utility model provides a kind of diaphragm test device, can the parameter such as online acquisition test fluid electrical conductivity, temperature;Can use In the measure of the performance parameter of diaphragm under different test conditions;Multiple diaphragm performances can also be simultaneously determined, batch testing is realized;And Testing process is simple, test device compact structure.
Fig. 1 shows that the utility model is applicable counter-infiltration diaphragm, the embodiment of the test device of nanofiltration diaphragm, integrated structure Schematic diagram 1, the counter-infiltration diaphragm, nanofiltration diaphragm test device include test liquid case 1, pure water tank 2, freq uency conversion supercharging pump 3, accurate mistake Filter 4, Membrane probing unit, pure water tank 2 and test liquid case 1 are connected by input of the pipeline respectively with freq uency conversion supercharging pump 3, are become The output end of frequency booster pump 3 is sequentially connected accurate filter 4 and Membrane probing unit by pipeline;Pipeline between each part is equal Valve is installed, and pipe end in Membrane probing unit is provided with dump valve 32;Membrane probing unit includes influent side and dense Multiple diaphragms of water side head and the tail series connection evaluate pond 5~22, and the concentrated water survey that least significant end diaphragm evaluates pond passes through pipeline connecting test liquid Case 1;The output end of freq uency conversion supercharging pump 3 is connected to test liquid case 1 and forms loop by pipeline, and pure water water inlet is installed in pipeline Control valve 33.
Wherein, freq uency conversion supercharging pump 3 can be circulated by pipeline and test fluid is circulated and keeps test fluid homogeneous, can also be There is provided in test process and be adapted to test pressure, the test fluid of flow condition, pure water cleaning can be also provided after the completion of test required Pressure;Such as use metered flow 2m3, the centrifugal pump of lift 189m.
Accurate filter 4 is used to remove the impurity that may be mixed into test fluid, can use filter cartridge type filter, filtering accuracy 5μm。
Thermometer 37 and pressure gauge 35 are configured with the output end of freq uency conversion supercharging pump 3, for testing the output end of freq uency conversion supercharging pump 3 Test fluid temperature and pressure;Pressure gauge 36, flowmeter 38 and online conductivity meter are configured with the output end of accurate filter 4 39, wherein, online conductivity meter 39 is used for the electrical conductivity of collecting test liquid, is calculated for salt rejection rate.
Sampling unit is additionally provided between Membrane probing unit and accurate filter 4, for the sampling of test fluid, can be passed through Sampling valve 34 is controlled.
Membrane probing unit has two groups of Membrane probing subelements in parallel, and each Membrane probing subelement includes nine films Piece evaluates pond, and such as diaphragm evaluates pond 5~13 and diaphragm evaluates pond 14~22, and every three diaphragms evaluate influent side and the concentrated water side in pond Head and the tail are connected into all the way, and every three tunnel composes in parallel a Membrane probing subelement, and the concentrated water of each test cell is returned after collecting Test liquid case, the front and back end of first group of Membrane probing subelement is separately installed with imported valve 27 and outlet valve 28, second group The front and back end of Membrane probing subelement is separately installed with imported valve 29 and outlet valve 30.
Two groups of test subelements are used interchangeably, i.e. can complete another group of survey when one group of test subelement works wherein Diaphragm dismounting in swab unit, to improve the efficiency of test.
The course of work of counter-infiltration diaphragm, nanofiltration diaphragm test device shown in the present embodiment is as follows:
When first powering on, all valves of shutoff device, opening valve test fluid return valve 24 and pure water water inlet control valve 33 are opened Open freq uency conversion supercharging pump 3 and be adjusted to lower frequency, the desired amount of pure water will be tested and add test liquid case 1, intake to after needing liquid level, Pure water water inlet control valve 33 is closed, test liquid case control valve 23 is opened, test fluid solute test liquid case 1 is added into, by circulation Test fluid is set to close freq uency conversion supercharging pump 3 after uniformly mixing.
In test fluid process for preparation, it would be desirable to which the diaphragm of test is sequentially placed into evaluation pond 5~13, is installed and is evaluated pond cover plate And it is fixed.
First group of test cell inlet valve 27 and outlet valve 28 are opened, concentrated water regulating valve 31 is opened, freq uency conversion supercharging pump is opened 3, regulation concentrated water regulating valve 31 slowly improves electric machine frequency, and the normal pressure needed for making the reading of pressure gauge 36 reach test makes stream The reading of gauge 38 reaches the normal flow needed for testing.
After precompressed 1 hour, beaker is placed respectively evaluating pond 5~13 and producing water side, water is produced in collection, during every 10 minutes The reading of online conductivity meter 39 is read, is averaged as test fluid conductivity data, use graduated cylinder and platform after half an hour respectively Formula conductivity meter measures the product water volume and electrical conductivity in each evaluation pond, each in first group of Membrane probing subelement by being calculated The flux data and salt rejection rate data of diaphragm.
In first group of Membrane probing subelement pre-compaction process, the peace of diaphragm in second group of Membrane probing subelement can be completed Dress, it would be desirable to which the diaphragm of test is sequentially placed into evaluation pond 14~22, installs and evaluates pond cover plate and fix.First group of Membrane probing After the completion of each online flowmeter of subelement and online conductivity meter reading, second group of test cell inlet valve 29 is opened, closed First group of test cell inlet valve 27 and outlet valve 28, open second group of test cell outlet valve 30, adjust concentrated water regulating valve 31, Normal pressure needed for making the reading of pressure gauge 36 reach test, the normal flow needed for making the reading of flowmeter 38 reach test.
After precompressed 1 hour, beaker is placed respectively evaluating pond 14~22 and producing water side, water is produced in collection, during every 10 points Clock reads the reading of online conductivity meter 39, averages as test fluid conductivity data, is measured after half an hour and produces water volume And electrical conductivity, by the flux data and salt rejection rate data that are calculated each diaphragm in second group of Membrane probing subelement.
By above operating procedure, the cycle alternation for completing two groups of Membrane probing subelements is used.Such as recognize in test process For the reading of online conductivity meter has differences, can be sampled by sampling valve 34 and checked.
Further, the device can also carry out self-cleaning after the completion of test.Step is as follows:
Test liquid case control valve 23 and concentrated water regulating valve 31 are closed, valve test liquid return valve 24, drain valve 32, pure water is opened Water inlet control valve 33, opens first group of test cell inlet valve 27 and outlet valve 28, opens second group of test cell inlet valve 29 With outlet valve 30, freq uency conversion supercharging pump being adjusted to lower frequency, pure water is cleaned test pipeline, rinse water is drained into from drain valve 32 Water system.Flushing is finished, and closes freq uency conversion supercharging pump, closes each valve.
The above, only the utility model preferably specific embodiment, but protection domain of the present utility model is not Be confined to this, any one skilled in the art in the technical scope that the utility model is disclosed, according to this practicality New technical scheme and its inventive concept is subject to equivalent or change, should all cover protection domain of the present utility model it It is interior.

Claims (7)

1. a kind of diaphragm test device, it is characterised in that:Including pure water tank, test liquid case, booster pump, filter, Membrane probing Unit, pure water tank and test liquid case are connected with the input of booster pump respectively by pipeline, and the output end of booster pump passes through pipeline It is sequentially connected filter and Membrane probing unit;Pipeline between each part is mounted on valve, and in Membrane probing unit Pipe end is equipped with dump valve;Membrane probing unit includes that influent side and multiple diaphragms of concentrated water side head and the tail series connection evaluate pond, most The concentrated water that end diaphragm evaluates pond is surveyed by pipeline connecting test liquid case;The first test device is configured with supercharging pump output terminal, Test fluid performance parameter for testing supercharging pump output terminal;The second test device is configured with filter output end, for surveying Test fluid performance parameter after examination filtering.
2. diaphragm test device as claimed in claim 1, it is characterised in that:The output end of booster pump is connected to survey by pipeline Test solution box-shaped into loop, arrange in the loop by the first test device;And valve is installed in pipeline.
3. diaphragm test device as claimed in claim 1 or 2, it is characterised in that:First test device include thermometer and/or Pressure gauge, test fluid temperature and/or pressure for testing supercharging pump output terminal.
4. diaphragm test device as claimed in claim 1, it is characterised in that:Second test device includes pressure gauge, flowmeter With one or more in online conductivity meter.
5. diaphragm test device as claimed in claim 1, it is characterised in that:Booster pump uses VFC booster pump.
6. diaphragm test device as claimed in claim 1, it is characterised in that:Membrane probing unit include at least two groups it is in parallel Membrane probing subelement, Membrane probing subelement includes multiple films of at least two-way influent side of parallel connection and the head and the tail series connection of concentrated water side Piece evaluates pond, and the concentrated water in the least significant end diaphragm evaluation pond of each Membrane probing subelement returns to test liquid case after collecting by pipeline; The front and back end of each Membrane probing subelement is separately installed with valve.
7. diaphragm test device as claimed in claim 1, it is characterised in that:Also set between Membrane probing unit and filter There is sampling valve.
CN201621335689.4U 2016-12-07 2016-12-07 Diaphragm test device Active CN206276248U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621335689.4U CN206276248U (en) 2016-12-07 2016-12-07 Diaphragm test device

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Application Number Priority Date Filing Date Title
CN201621335689.4U CN206276248U (en) 2016-12-07 2016-12-07 Diaphragm test device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108362832A (en) * 2018-01-29 2018-08-03 桑德生态科技有限公司 The device for evaluating performance and method of low pressure nanofiltration membrane component
CN108905635A (en) * 2018-07-23 2018-11-30 埃姆媞(无锡)分离技术有限公司 One kind referring to calibration method for detecting coiled reverse osmosis membrane assembly property

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108362832A (en) * 2018-01-29 2018-08-03 桑德生态科技有限公司 The device for evaluating performance and method of low pressure nanofiltration membrane component
CN108905635A (en) * 2018-07-23 2018-11-30 埃姆媞(无锡)分离技术有限公司 One kind referring to calibration method for detecting coiled reverse osmosis membrane assembly property

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