CN203281229U - Single nanofiltration membrane alkali liquor filter capacity testing device - Google Patents
Single nanofiltration membrane alkali liquor filter capacity testing device Download PDFInfo
- Publication number
- CN203281229U CN203281229U CN2013203489006U CN201320348900U CN203281229U CN 203281229 U CN203281229 U CN 203281229U CN 2013203489006 U CN2013203489006 U CN 2013203489006U CN 201320348900 U CN201320348900 U CN 201320348900U CN 203281229 U CN203281229 U CN 203281229U
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- CN
- China
- Prior art keywords
- alkali liquor
- alkali lye
- nanofiltration membrane
- pipeline
- membrane
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a testing device used in the rayon staple producing process, in particular to a single nanofiltration membrane alkali liquor filter capacity testing device. The single nanofiltration membrane alkali liquor filter capacity testing device comprises an alkali liquor transmission pipeline, and two free ends of the alkali liquor transmission pipeline are communicated with an alkali liquor inlet of a single nanofiltration membrane and an alkali liquor outlet of the single nanofiltration membrane respectively. The single nanofiltration membrane alkali liquor filter capacity testing device is characterized in that a pipeline high-pressure pump, a collecting tank and flow meters are arranged on a pipeline, the pipeline high-pressure pump is connected with and controlled by a frequency conversion control cabinet, and a pipeline which is communicated with the alkali liquor inlet of the single nanofiltration membrane and the alkali liquor outlet of the single nanofiltration membrane and a pipeline which is arranged on the collecting tank and used for discharging sewage are provided with the flow meters respectively. A plurality of ball valves which control the flow are arranged on the alkali liquor transmission pipeline of the whole testing device. A frequency converter and a control unit matched with the frequency converter are arranged in the frequency conversion control cabinet, and frequency conversion control over the pipeline high-pressure pump is achieved. The alkali liquor filter capacity of the single nanofiltration membrane can be tested through the testing device, different types of alkali liquor are tested through control over the frequency converter, operation is easy to conduct, manufacturing cost is low, and the application range is wide.
Description
Technical field
The utility model relates to the checkout gear of using in viscose staple fiber production process, and specifically a kind of list props up the testing arrangement of NF membrane alkali lye filter capacity.
Background technology
At present, domestic viscose staple fibre manufacturing enterprise in the alkali lye filter process, generally adopts the NF membrane filtration system to remove hemicellulose level in alkali lye, and alkali lye is recycled again.When using a whole set of nanofiltration membrane filter device, equipment comes into operation after certain hour, can find that the NF membrane filter capacity descends gradually, when the NF membrane filter capacity can not meet production requirement, needs to change NF membrane.Due to the filter effect that can't judge every film in a whole set of nanofiltration system, can only integral replacing, cause the wasting of resources.Test about NF membrane alkali lye filter capacity, traditional detection method is to adopt centrifugal pump that the pressure reduction of test fluid is provided to the film both sides, use again the through performance of flowmeter survey film, but because NF membrane is filtered when running well alkali lye is different, in alkali lye, the hemicellulose level difference causes the fluctuation of parameters in the NF membrane filter process, pressure as flow, film are imported and exported, cause detecting data unstable, still can not meet the demand that the NF membrane filter capacity detects.
The utility model content
The utility model is for the deficiency that exists in background technology, provides a kind of simple in structure, the device that can test the alkali lye filter capacity of single NF membrane.
The utility model is by the following technical solutions: a kind of list props up NF membrane alkali lye filter capacity testing arrangement, comprise the alkali lye conveyance conduit, two free ends of alkali lye conveyance conduit are communicated with alkali lye import and the outlet of single NF membrane respectively, it is characterized in that, be provided with pipe high-pressure pump, collecting tank and flowmeter on described pipeline; Described pipe high-pressure pump is connected controlled with the VFC case; Be separately installed with flowmeter on the pipeline that is communicated with NF membrane alkali lye export and import and the pipeline of collecting tank blowdown.
Be separately installed with Pressure gauge on the outlet of the alkali lye of NF membrane and alkali lye import connecting pipe.
The ball valve of a plurality of control flows is installed on the alkali lye conveyance conduit of whole testing arrangement.
Be provided with frequency converter and supporting control module in the VFC case, the pipe high-pressure pump is realized VFC.
This testing arrangement can be tested the alkali lye filter capacity of single NF membrane, can test different alkali lye by the control of frequency converter, and simple to operate, cost of manufacture is low, and is applied widely.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present utility model.
In figure: NF membrane 1, alkali lye outlet 2, rate of discharge meter 3, collecting tank 4, black liquor flowmeter 5, pipe high-pressure pump 6, VFC case 7, alkali lye import 8, inlet flow rate meter 9, ball valve 10.
The specific embodiment
Below in conjunction with accompanying drawing to this novel being described further.
This novel disclosed this list props up NF membrane alkali lye filter capacity testing arrangement, and its critical piece is the alkali lye conveyance conduit, and two free ends of alkali lye conveyance conduit are communicated with alkali lye import 8 and the alkali lye outlet 2 of single NF membrane 1 respectively.Be separately installed with rate of discharge meter 3 and inlet flow rate meter 9 on the pipeline of alkali lye outlet and alkali lye import, a Pressure gauge PI also is installed respectively, be used for showing the pressure of the outlet of alkali lye conveyance conduit and import.Be provided with pipe high-pressure pump 6 on the alkali lye conveyance conduit, this pipe high-pressure pump is connected controlled with VFC case 7; Be provided with frequency converter and supporting control module in VFC case 7, the pipe high-pressure pump is realized VFC.Be arranged on the collecting tank 4 on the alkali lye conveyance conduit and be provided with a blow-off line, black liquor flowmeter 5 is installed on this blow-off line.The ball valve 10 of a plurality of control flows is installed on the alkali lye conveyance conduit of whole testing arrangement.
a certain amount of alkali lye is joined in collecting tank, by the pipe high-pressure pump, alkali lye is delivered in NF membrane, inlet pressure PI(0-2.5Mpa mainly measures in alkali lye import department in NF membrane) and inlet flow rate, alkali lye is after NF membrane is filtered, discharged by the alkali lye outlet, mainly measure alkali lye outlet pressure PI(0-2.5Mpa) and rate of discharge, after circulating filtration, residue alkali lye in collecting tank is black liquor, measure the black liquor flow through the black liquor flowmeter while by blow-off line, being discharged, test by pressure and flow, just can detect the filter capacity of this single NF membrane, NF membrane to scarce capacity is changed one by one.
By the VFC of control module to the pipe high-pressure pump, realize the test of this device to different alkali lye, make the system even running.
In addition, also can carry out single NF membrane Performance Detection to the NF membrane system of newly buying by this device.
Claims (4)
1. a list props up NF membrane alkali lye filter capacity testing arrangement, comprise the alkali lye conveyance conduit, two free ends of alkali lye conveyance conduit are communicated with alkali lye import and the outlet of single NF membrane respectively, it is characterized in that, are provided with pipe high-pressure pump, collecting tank and flowmeter on described pipeline; Described pipe high-pressure pump is connected controlled with the VFC case; Be separately installed with flowmeter on the pipeline that is communicated with NF membrane alkali lye export and import and the pipeline of collecting tank blowdown.
2. list according to claim 1 props up NF membrane alkali lye filter capacity testing arrangement, it is characterized in that, and is separately installed with Pressure gauge on the outlet of the alkali lye of NF membrane and alkali lye import connecting pipe.
3. list according to claim 1 props up NF membrane alkali lye filter capacity testing arrangement, it is characterized in that, the ball valve of a plurality of control flows is installed on the alkali lye conveyance conduit of whole testing arrangement.
4. list according to claim 1 props up NF membrane alkali lye filter capacity testing arrangement, it is characterized in that, is provided with frequency converter and supporting control module in described VFC case, and the pipe high-pressure pump is realized VFC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203489006U CN203281229U (en) | 2013-06-18 | 2013-06-18 | Single nanofiltration membrane alkali liquor filter capacity testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203489006U CN203281229U (en) | 2013-06-18 | 2013-06-18 | Single nanofiltration membrane alkali liquor filter capacity testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203281229U true CN203281229U (en) | 2013-11-13 |
Family
ID=49537610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203489006U Expired - Fee Related CN203281229U (en) | 2013-06-18 | 2013-06-18 | Single nanofiltration membrane alkali liquor filter capacity testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203281229U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109351199A (en) * | 2018-10-31 | 2019-02-19 | 国家海洋局天津海水淡化与综合利用研究所 | A kind of external pressing type hollow fibrous membrane opening size test component preparation method |
-
2013
- 2013-06-18 CN CN2013203489006U patent/CN203281229U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109351199A (en) * | 2018-10-31 | 2019-02-19 | 国家海洋局天津海水淡化与综合利用研究所 | A kind of external pressing type hollow fibrous membrane opening size test component preparation method |
| CN109351199B (en) * | 2018-10-31 | 2022-01-11 | 国家海洋局天津海水淡化与综合利用研究所 | Preparation method of component for external pressure type hollow fiber membrane aperture test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20200618 |