Online monitoring system and method for core plate of membrane filter board

A membrane filter plate and monitoring system technology, applied in the direction of measuring force, measuring heat, measuring device, etc., can solve the problems such as the service status and monitoring of the filter plate of the filter press that have not yet occurred, and achieve accurate and rapid elimination of filter plate failures and hidden safety hazards. , Guaranteed benefits, easy-to-achieve effects

Active Publication Date: 2016-05-25
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, due to the constraints of various technologies and sensor conditions, there is no technology to monitor the service state of the filter plate of the filter press in my country.

Method used

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  • Online monitoring system and method for core plate of membrane filter board
  • Online monitoring system and method for core plate of membrane filter board
  • Online monitoring system and method for core plate of membrane filter board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Embodiment 1: An online health monitoring device and method for the core plate of the upper feed compartment membrane filter plate.

[0079] Such as image 3 As shown, the system includes: thin rod-shaped bidirectional lead fiber Bragg grating sensor insert 6, fiber coupler, fiber grating digital demodulator, computer system, etc.

[0080] The structure of the thin rod-shaped bidirectional lead fiber Bragg grating sensor insert 6 is as follows figure 1 As shown, each fiber grating has leads at both ends to form two signal channels. After being broken by an external force, a double-lead grating sensor can become two single-lead grating sensors, and the grating can work normally to ensure online monitoring process monitoring The stability.

[0081] (1) According to the size of the core plate of the upper feed compartment membrane filter plate, 26 optical fiber gratings with a cladding diameter of 40 μm were carved. Each fiber is engraved with 10 grating units with different ce...

Embodiment 2

[0088] Embodiment 2 An online health monitoring device and method for the core plate of the medium-feeding chamber diaphragm filter plate

[0089] Such as Figure 4 As shown, the system includes: thin rod-shaped one-way lead fiber Bragg grating sensor insert, thin rod-shaped two-way lead fiber Bragg grating sensor insert, fiber coupler, fiber grating digital demodulator, computer system, etc.

[0090] The structure of the thin rod-shaped unidirectional lead fiber Bragg grating to the package insert 10 is as figure 2 As shown, each fiber grating has only one end lead, and the fiber grating with one-way lead is convenient to arrange around the feed hole in the center of the diaphragm filter plate.

[0091] (1) According to the shape and structure characteristics and size of the core plate of the middle feed chamber membrane filter plate, 22 bidirectional lead wire cladding diameter 40μm fiber gratings were carved. Each fiber is engraved with 10 grating units with different central wa...

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Abstract

The invention relates to an online monitoring system and a method for a core plate of a membrane filter board, and the system comprises an optical fiber grating demodulator, an optical fiber coupler, a processor and an optical fiber grating sensor assembly, wherein the optical fiber grating sensor assembly is arranged in the core plate, a light source generates an optical signal, the optical signal is transmitted to the optical fiber grating sensor assembly through the optical fiber coupler, after the optical signal is interacted with the optical fiber grating, a reflected light gets in the optical fiber grating demodulator through the optical fiber coupler, the optical fiber grating demodulator is connected with the processer, the processer calls a core plate damage database to analyze the damage degree, then establishes a 3D model and outputs the damage distribution of the core plate. According to the method, the system and the method provided by the invention can assess the healthy condition of the core plate and publish an early warning in time, the core plate fault and hidden danger can be accurately and quickly eliminated, the safety incident and production loss can be avoided, and the benefits of the equipment manufacturers and the users can be ensured.

Description

Technical field [0001] The invention relates to an online monitoring system and method for a core plate of a diaphragm filter plate. Background technique [0002] The chamber diaphragm filter press has the advantages of high pressing pressure, good corrosion resistance, convenient maintenance, safety and reliability, etc., and is the first choice for metallurgy, papermaking, pharmaceutical, food, brewing, sludge and other industries. [0003] The chamber filter press is an intermittently operated pressurized filter device that requires continuous loading and unloading. And in the actual working environment, the pressure on both sides of the filter plate may be severely unbalanced under special conditions such as pipe blockage, or the filter plate may be directly impacted by the slurry due to the damage of the filter cloth. In this way, the filter plate is in a state where it is periodically and frequently subjected to uneven out-of-plane dynamic loads, which further deteriorates i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/24G01K11/32G01K11/3206
CPCG01K11/3206G01L1/246
Inventor 贾玉玺董琪万国顺郭云力
Owner SHANDONG UNIV
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