CN201930728U - Online detecting device for filtering quality of hollow-fiber separating membrane - Google Patents
Online detecting device for filtering quality of hollow-fiber separating membrane Download PDFInfo
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- CN201930728U CN201930728U CN2011200160816U CN201120016081U CN201930728U CN 201930728 U CN201930728 U CN 201930728U CN 2011200160816 U CN2011200160816 U CN 2011200160816U CN 201120016081 U CN201120016081 U CN 201120016081U CN 201930728 U CN201930728 U CN 201930728U
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- separating membrane
- pressure sensor
- separating film
- detecting device
- hollow
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Abstract
The utility model relates to an online detecting device for the filtering quality of a hollow-fiber separating membrane, which comprises a hollow-fiber separating membrane assembly and a detecting instrument assembly, and is characterized in that: the detecting instrument assembly mainly comprises a pressure sensor and a PLC (Programmable Logic Controller), wherein the pressure sensor and the PLC are mutually connected, the pressure sensor is fixed above the separating membrane assembly and communicated with a water outlet on a shell of the separating membrane assembly, and an air inlet and an air inlet valve are also arranged beside the water outlet. The online detecting device has the beneficial effects that: the timed, automatic, online and timely monitoring for the integrality of the separating membrane is realized by transferring a signal sent by the pressure sensor onto the PLC of a control system, the filtering quality is improved, and the online detecting device has the advantages of high efficiency, strong reliability, measured data accuracy, low labor intensity and low cost.
Description
Technical field
The utility model belongs to a kind of checkout gear of effluent treatment and filtering quality, relates in particular to a kind of on-line measuring device of hollow fiber separating film filter quality.
Background technology
Along with shortage of water resources increasingly sharpens, sewage disposal and reuse technology are just obtaining development energetically, hollow fiber separating film is by the water treatment field extensive use, comprise several thousand to several ten thousand films in the common separating film module, the quality of every film will directly influence the filter effect and the filter quality of separating film module, and use at present is that water quality testing meter is installed on separating film module, or on separating film module, leave sample tap, carry out manual detection with instrument or sampling, when the against regulation requirement of water quality is water quality inferiority, illustrating that diffusion barrier has breaks, by Artificial Control, can not guarantee regularly, during because of detection so extremely inaccurate, also be subjected to simultaneously the restriction of accuracy of instrument quality, poor reliability, the cost height, sample examination labour intensity is big, have a strong impact on and handle the back water quality, diffusion barrier is short service life.
Summary of the invention
Main purpose of the present utility model is: overcome above-mentioned deficiency and provide a kind of have efficient, detect automatically, measure accurately, good reliability, guarantee the on-line measuring device of the hollow fiber separating film filter quality that filtered water water quality is good, cost is low.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: a kind of on-line measuring device of hollow fiber separating film filter quality, comprise hollow fiber separating film assembly and instrumentation assembly, it is characterized in that: described instrumentation assembly mainly is made of interconnective pressure sensor and PLC controller, pressure sensor is fixed on separating film module top and communicates with delivery port on the separating film module shell, and the delivery port next door also is provided with air inlet and intake valve.
Beneficial effect: the signal that sends by pressure sensor passes on the PLC controller of control system, the integrality of realize regularly, automatic on-line in time being monitored diffusion barrier has improved filter quality, efficient height, good reliability, measurement data is accurate, labour intensity is low, cost is low.
Description of drawings
Fig. 1 is the assembling schematic diagram of the utility model device.
The specific embodiment
Describe the specific embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.
As shown in Figure 1, a kind of on-line measuring device of hollow fiber separating film filter quality, comprise hollow fiber separating film assembly and instrumentation assembly, described instrumentation assembly mainly is made of interconnective pressure sensor and PLC controller, pressure sensor is fixed on separating film module top and communicates with delivery port on the separating film module shell, and the delivery port next door also is provided with air inlet and intake valve.
Operation principle: be installed into air valve 5 on it having air inlet 4 above the hollow fiber separating film package shell 10, communicate at separating film module shell 10 upper end fixation pressure sensors 9 and with water side 11.During work, sewage enters the separating film module I through valve 8 from the water inlet 1 of separating film module I, when adopting external-compression type, sewage enters from the aperture on each diffusion barrier 12, clear water after the filtration is from separating film module I delivery port 2,3 through valve 6,7 flow out, every through carrying out one-time detection in 168 hours, at this moment, at first close water intaking valve 8, and outlet valve 6 is half-open, outlet valve 7 and recycle water valve 13 full cut-offs, blowoff valve 14 full cut-offs, then, in separating film module I, inject the air that has certain pressure by the air inlet 4 of separating film module I and the valve of opening 5, and the water in the hollow fiber separating film 12 is all squeezed out, after the emptying, close all valves, comprise intake valve 5,, write down a force value through 1 minute stabilization time, again through 2 minutes, write down a force value again, two force value are subtracted each other and are drawn a pressure difference value, and the size of this pressure difference value can be represented the integrality of diffusion barrier.Usually, pressure reduction represents to have among the separating film module I integrality of several films 12 relatively poor during less than 1Kpa-5Kpa, but it is in allowed band, the separating film module I that need more renew during greater than 5Kpa when pressure reduction.Usually, the bleed pressure size is by the material decision of diffusion barrier, because of the elasticity of unlike material diffusion barrier different with intensity, so the pressure size is also different, the principle of its selection pressure size is to squeeze liquid in the diffusion barrier 12 rapidly, can not destroy the diffusion barrier film body again, promptly keep diffusion barrier 12 inside and outside pressure relative equilibriums to get final product substantially.The diffusion barrier material that adopts in the present embodiment is polypropylene (PP), and general pressure is about 100Kpa.Detection all valves that finish return to reset condition again.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (1)
1. the on-line measuring device of a hollow fiber separating film filter quality, comprise hollow fiber separating film assembly and instrumentation assembly, it is characterized in that: described instrumentation assembly mainly is made of interconnective pressure sensor and PLC controller, pressure sensor is fixed on separating film module top and communicates with delivery port on the separating film module shell, and the delivery port next door also is provided with air inlet and intake valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200160816U CN201930728U (en) | 2011-01-19 | 2011-01-19 | Online detecting device for filtering quality of hollow-fiber separating membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200160816U CN201930728U (en) | 2011-01-19 | 2011-01-19 | Online detecting device for filtering quality of hollow-fiber separating membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201930728U true CN201930728U (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200160816U Expired - Lifetime CN201930728U (en) | 2011-01-19 | 2011-01-19 | Online detecting device for filtering quality of hollow-fiber separating membrane |
Country Status (1)
| Country | Link |
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| CN (1) | CN201930728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104353365A (en) * | 2014-11-19 | 2015-02-18 | 威海威高血液净化制品有限公司 | Full-automatic hemodialysis membrane water overflow tester and testing method |
-
2011
- 2011-01-19 CN CN2011200160816U patent/CN201930728U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104353365A (en) * | 2014-11-19 | 2015-02-18 | 威海威高血液净化制品有限公司 | Full-automatic hemodialysis membrane water overflow tester and testing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |