High temperature corrosion on-line monitoring system for boiler water-cooled wall

A high-temperature corrosion and monitoring system technology, which is applied in weather resistance/light resistance/corrosion resistance, measuring devices, instruments, etc., can solve the problems of not being able to know the high-temperature corrosion rate and unable to reduce the high-temperature corrosion rate of boilers, etc.

Active Publication Date: 2009-04-01
JIANGSU FRONTIER ELECTRIC TECH +1
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Problems solved by technology

Its disadvantage is that the real-time high-temperature corrosion rate cannot be known during boiler operation, and the CO and SO 2 、H 2 The concentration of S and other gases should be rea

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  • High temperature corrosion on-line monitoring system for boiler water-cooled wall

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings. figure 1 It is a schematic diagram of the composition of the boiler water wall high temperature corrosion on-line monitoring system of the present invention.

[0019] An on-line monitoring system for boiler water wall high temperature corrosion of the present invention is characterized in that it includes a sampling system and a sampling control and processing system, and the sampling system includes:

[0020] The flue gas sampling probe 1 installed at the fins of the water wall in the high temperature area of ​​the furnace is connected to the flue gas sampling probe insulation box 2 after the flue gas sampling probe 1, and a temperature control device is arranged in the flue gas sampling probe insulation box 2. After the probe insulation box 2 is connected with an electric heat tracing pipe 7, then connects a quick cooler 8, and the cooling water of the quick cooler 8 i...

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Abstract

The invention discloses a boiler water-cooling wall high-temperature corrosion online monitoring system, comprising a sampling system and a sampling control and disposing system, wherein, the sampling system comprises a fume sampling probe pipe; a fume sampling probe heat-preservation box of a temperature control device is arranged behind the fume sampling probe pipe; an electric heating pipe and a quick cooling device are connected behind the probe heat-preservation box; two branches are connected behind the electric heating pipe and the quick cooling device, wherein, one branch is a fume branch and the other branch is sequentially connected with a sample air separation electromagnetic valve, a sample air sampling pump, a calibration/sampling three-way electromagnetic valve, a 0.1Mum ceramic filter, a sample air adjusting needle valve, a flowmeter and a fume analysis gauge; the sampling control and disposing system comprises a PLC which can control the running of the sampling system, a data collector which is connected with the fume analysis gauge by a data wire and an industry control machine which is connected with the data collector by the data wire. The boiler water-cooling wall high-temperature corrosion online monitoring system can achieve the object of online monitoring the high-temperature corrosion speed of the boiler water-cooling wall and provides safety evaluation basis of the heated surface for the combustion optimization of the boiler.

Description

technical field [0001] The invention relates to a monitoring system, in particular to an on-line monitoring system for high-temperature corrosion of boiler water walls. It belongs to the technical field of electric power and power engineering. Background technique [0002] The purpose of boiler high-temperature corrosion monitoring is to determine the high-temperature corrosion rate of the boiler water wall, and reasonably configure the boiler combustion parameters to prevent the water wall from bursting. [0003] The high-temperature corrosion rate of the water-cooled wall refers to the speed at which the wall thickness of the water-cooled wall decreases under the high-temperature flue gas atmosphere when the boiler is running. When the wall thickness decreases below the safe strength, the corresponding water-cooled wall tube must be replaced. The existing technology for monitoring the high-temperature corrosion rate of the water-cooled wall is generally to measure the wal...

Claims

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Application Information

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IPC IPC(8): G01N17/00
Inventor 梁绍华黄磊鲁松林
Owner JIANGSU FRONTIER ELECTRIC TECH
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