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Temperature field measuring system in biological membrane type reactor based on optical fiber Bragg raster

A measurement system and reactor technology, applied in the field of fiber optic Bragg grating sensors, can solve the problems of unfavorable biofilm reactor temperature field reconstruction, difficulty in obtaining enough temperature data points, large thermocouple volume, etc., and achieve long service life , Small size, high sensitivity effect

Inactive Publication Date: 2011-04-20
CHONGQING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, thermocouples are generally used to measure the temperature in the reactor. However, the thermocouples are large in size and have low temperature accuracy. If they are made into a thermocouple array and placed in a biofilm reactor, due to size limitations, It is difficult to obtain enough temperature data points with sufficient precision, so this measurement method is not conducive to the reconstruction of the temperature field distribution in the biofilm reactor

Method used

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  • Temperature field measuring system in biological membrane type reactor based on optical fiber Bragg raster
  • Temperature field measuring system in biological membrane type reactor based on optical fiber Bragg raster
  • Temperature field measuring system in biological membrane type reactor based on optical fiber Bragg raster

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Embodiment 1

[0029] Example 1: see figure 1 , figure 2 , The temperature field measurement system in the biofilm reactor based on the fiber Bragg grating is composed of a bracket, several groups of fiber Bragg grating temperature sensor linear array, and a fiber grating demodulator, wherein the bracket is composed of the main shaft 2, the upper support rod 3A , 3B, 3C, lower support rods 4A, 4B, 4C, fixed rods 5A, 5B, 5C, 5D, 5E, 5F, the upper support rods 3A, 3B, 3C are horizontally arranged on the top of the main shaft 2 The support rods 3A, 3B, and 3C form 120 degrees to each other. The lower support rods 4A, 4B, 4C are arranged at the bottom of the main shaft 2 in a horizontal direction. The lower support rods 4A, 4B, 4C are respectively connected to the upper support rods 3A, 3B. , 3C in the same direction, fixed rods 5A, 5B, 5C, 5D, 5E, 5F are arranged between the upper support rod and the lower support rod in the same direction along the direction parallel to the main shaft; among t...

Embodiment 2

[0031] Example 2: In this example, the main part of the biofilm reactor that needs to measure temperature is cylindrical, with an inner diameter of 400mm, and the inner height of the packed bed section is 800mm. Therefore, the main shaft 2 is 780mm high and supported on top The lengths of the rods 3A, 3B, 3C and the lower support rods 4A, 4B, 4C are 180mm. The bracket is made of organic glass. The upper support rods 3A, 3B, 3C are radially arranged on the top of the main shaft 2, and the upper support rods 3A, 3B The lower support rods 4A, 4B, 4C are arranged at the bottom of the main shaft 2 in the radial direction, and the lower support rods 4A, 4B, 4C are in the same direction as the upper support rods 3A, 3B, 3C, respectively. Three fixed rods are arranged axially between each pair of upper support rods and lower support rods in the same direction. The height of the fixed rods is the same as that of the main shaft, which is also 780mm. The distance between the center of one ...

Embodiment 3

[0038] Example 3: In this example, the main part of the biofilm reactor that needs to measure temperature is cylindrical, with an inner diameter of 240mm, and the inner height of the packed bed section is 500mm. Therefore, the main shaft 2 is 480mm high and supported on top The lengths of the rods 3A, 3B, 3C and the lower support rods 4A, 4B, 4C are 110mm. The bracket is made of organic glass. The upper support rods 3A, 3B, 3C are radially arranged on the top of the main shaft 2, and the upper support rods 3A, 3B The lower support rods 4A, 4B, 4C are arranged at the bottom of the main shaft 2 in the radial direction, and the lower support rods 4A, 4B, 4C are in the same direction as the upper support rods 3A, 3B, 3C, respectively. Two fixed rods are arranged axially between each pair of upper support rods and lower support rods in the same direction. The height of the fixed rods is the same as that of the main shaft, which is also 480mm. The distance between one of the fixed rod...

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Abstract

The invention provides a temperature field measuring system in a biological membrane type reactor based on an optical fiber Bragg raster, comprising a bracket and a plurality of groups of optical fiber Bragg raster temperature sensor linear arrays. The temperature field measuring system is characterized in that the bracket comprises a main shaft, upper support rods, lower support rods and fixed rods, wherein the upper support rods are arranged at the top of the main shaft along the radial direction and mutually form 120 degrees; the lower support rods are arranged at the bottom of the main shaft along the radial direction and are respectively in the same direction with the upper support rods; and the fixed rods are axially arranged between the upper support rods and the lower support rodswhich are in the same direction; each group of optical fiber Bragg raster temperature sensor linear array comprises M optical fiber Bragg raster temperature sensors and an optical fiber, and the optical fiber Bragg raster temperature sensor linear arrays are respectively fixed on the main shaft and the fixed rods. The invention applies the optical fiber Bragg raster temperature sensor linear arrays to the temperature field measurement of the biological membrane type reactor and can measure the mutilayer temperature distribution data of a filler bed section.

Description

Technical field [0001] The invention relates to a fiber Bragg grating sensor, in particular to a temperature field measurement system in a biofilm reactor based on the fiber Bragg grating. Background technique [0002] Microorganisms with bacteria as the main body will form a microbial film on the surface of the carrier as long as there is a carrier attached to it under suitable environmental conditions. People use artificial intensification technology to introduce microbial membranes into the treatment of organic waste gas in the industry, thereby forming a biofilm reactor. The essence is to use the life activities of microorganisms in the membrane reactor to remove the organic matter toluene, fatty acids, and fatty acids in the industrial waste gas. Acetaldehyde and others become simple inorganic CO 2 And H 2 O and cytoplasm, etc. In this technology, people are most concerned about the degradation rate and efficiency of organic waste gas by the membrane reactor. [0003] Summar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K11/32G01K11/3206
Inventor 赵明富罗彬彬钟年丙胡新宇曹阳
Owner CHONGQING UNIV OF TECH
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