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Mechanical magneto-oxygen meter pretreatment system for on-line detection of oxygen content in cracking gas

A technology of surface pretreatment and oxygen content, which is applied in the field of chemical gas detection, can solve the problems of inaccurate online analysis of oxygen content, unfavorable device normal operation, and display lag, so as to avoid unqualified water removal and reduce the time for replacing filter packing Effect

Active Publication Date: 2018-07-06
重庆弛源化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the use of the magnetic oxygen meter, due to unreasonable selection of materials for the pretreatment system, unreasonable design of the size of the water scrubber, and unreasonable design of the gas-liquid separator, etc., the online analysis of oxygen content is inaccurate, the stability is poor, and the display is seriously lagging behind. Etc., it is prone to display errors, causing the device to stop by mistake, etc., resulting in large economic losses, which is not conducive to the normal operation of the device

Method used

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  • Mechanical magneto-oxygen meter pretreatment system for on-line detection of oxygen content in cracking gas

Examples

Experimental program
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Embodiment 1

[0032] This embodiment relates to a mechanical magnetic oxygen meter pretreatment system for on-line detection of oxygen content in cracked gas, and its structural diagram is as follows figure 1 : Including coarse filter 1, water scrubber 2, gas-liquid separation tank 3, water eliminator, bypass filter 7, analyzer five-way valve 10 connected in sequence, the outlet of coarse filter 1 is connected to the inlet of water scrubber 2, The outlet of the water washer 2 is connected to the inlet of the gas-liquid separation tank 3, wherein the water washer 2 includes a gas sample inlet 21, a gas sample outlet 22, an overflow water sample inlet 23 and an overflow water sample outlet 24, and the water washer 2 has a diameter of 90mm. The length is 1200mm, the overflow water sample outlet 23 of the water washer is 25mm in size, and the overflow water sample outlet 23 of the water washer is 40mm in height from the gas sample outlet 22; The primary water eliminator 6, the inlet of the prim...

Embodiment 2

[0034] This embodiment relates to a mechanical magnetic oxygen meter pretreatment system for on-line detection of oxygen content in cracked gas, and its structural diagram is as follows figure 1 : Including coarse filter 1, water scrubber 2, gas-liquid separation tank 3, water eliminator, bypass filter 7, analyzer five-way valve 10 connected in sequence, the outlet of coarse filter 1 is connected to the inlet of water scrubber 2, The outlet of the water washer 2 is connected to the inlet of the gas-liquid separation tank 3, wherein the water washer 2 includes a gas sample inlet 21, a gas sample outlet 22, an overflow water sample inlet 23 and an overflow water sample outlet 24, and the water washer 2 has a diameter of 80mm. The length is 1000mm, the overflow water sample outlet 23 of the water washer is 20mm in size, and the overflow water sample outlet 23 of the water washer is 80mm in height from the gas sample outlet 22; The primary water eliminator 6, the inlet of the prim...

Embodiment 3

[0036] This embodiment relates to a mechanical magnetic oxygen meter pretreatment system for on-line detection of oxygen content in cracked gas, and its structural diagram is as follows figure 1 : Including coarse filter 1, water scrubber 2, gas-liquid separation tank 3, water eliminator, bypass filter 7, analyzer five-way valve 10 connected in sequence, the outlet of coarse filter 1 is connected to the inlet of water scrubber 2, The outlet of the water washer 2 is connected to the inlet of the gas-liquid separation tank 3, wherein the water washer 2 includes a gas sample inlet 21, a gas sample outlet 22, an overflow water sample inlet 23 and an overflow water sample outlet 24, and the water washer 2 has a diameter of 80mm. The length is 1000mm, the overflow water sample outlet 23 of the water washer is 25mm in size, and the overflow water sample outlet 23 of the water washer is 200mm high from the gas sample outlet 22; the water eliminator includes a first water eliminator 4, ...

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Abstract

The invention relates to a mechanical magneto-oxygen meter pretreatment system and method for on-line detection of oxygen content in a cracking gas. The pretreatment method comprises the following steps: feeding a cracking gas sample in a coarse filter for dust removal through a sampling probe, removing liquid water and cooling through a water scrubber, and then separating gas and liquid through agas-liquid separation tank; further carrying out water removal on separated gas through a first-stage water remover and then gas-liquid separation through a gas-liquid separator; demisting and dehumidifying the separated gas by an aerial fog dirt separator, and then performing water removal again through a two-stage water remover after demisting, carrying out fine water removal on the gas subjected to the water removal through a three-stage water remover, and filtering the gas subjected to the fine water removal through a bypass filter, entering a bypass to return from one side and entering afive-way valve of an analyzer from the other side, performing the water removal on the sample through a water arrester after passing through the five-way valve, and then entering the analyzer to detect and analyze the oxygen content. After being treated by the treatment system and then subjected to the on-line analysis, the cracking gas sample is high in accuracy of the obtained oxygen content, strong in stability and not likely to make mistakes.

Description

technical field [0001] The invention belongs to the field of chemical gas detection, and in particular relates to a mechanical magnetic oxygen meter pretreatment system and method for on-line detection of cracked gas oxygen content. Background technique [0002] Acetylene is widely used to synthesize a series of organic products such as acetaldehyde, acetic acid, plastics, fibers, etc. The main raw materials for the production of acetylene are calcium carbide and natural gas. For a long time, the calcium carbide method has been used to produce acetylene in China, but due to its large pollution, the calcium carbide method is used to produce acetylene. will become increasingly difficult. With the continuous enhancement of people's environmental awareness, many domestic enterprises have begun to use natural gas as raw material to produce acetylene. For example, Chongqing Chiyuan Chemical Industry uses the partial oxidation of natural gas to produce acetylene, fully mixing natur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/34
CPCG01N1/34
Inventor 肖文国舒洪斌左宏学代黎明王海峰
Owner 重庆弛源化工有限公司
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