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Determination apparatus for dew point of gas

A technology for measuring device and dew point, which is applied in the direction of material moisture content, etc., can solve the problems of equipment corrosion aggravation, dew point corrosion and other problems, and achieve the effect of prolonging the service life and preventing dew point corrosion

Inactive Publication Date: 2012-06-13
ANHUI HUAIHUA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After taking these measures, there is a common problem, that is, dew point corrosion, that is, low-temperature electrochemical corrosion. Although more heat is recovered, the problem of equipment corrosion is also intensified.

Method used

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  • Determination apparatus for dew point of gas
  • Determination apparatus for dew point of gas

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with accompanying drawing:

[0013] Such as figure 1 The gas dew point measuring device shown includes a closed transparent cup 1 and a copper cup 2 inserted into the transparent cup 1. There is a gap between the cup bottom of the copper cup 2 and the cup bottom of the transparent cup 1. The transparent cup 1 includes The cup body 11 and the cup cover 12, the cup cover 12 is provided with an air inlet pipe 3 and an air outlet pipe 4, the upper end of the copper cup 2 is open, that is, the upper end of the copper cup 2 is open, and acetone liquid 5 and a mercury thermometer 6 are arranged in the copper , as a preferred version of the present invention, the outer surface of the copper cup 2 is chrome-plated and polished to a mirror surface, and the outlet position of the air inlet pipe 3 coincides with the position of the cup bottom of the copper cup 2, so that the dew point of the gas can be observed mo...

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Abstract

The invention relates to a determination apparatus for the dew point of gas. The apparatus comprises an enclosed transparent cup and a copper cup inserted into the transparent cup; a gap is provided between the bottom of the copper cup and the bottom of the transparent cup, a gas inlet pipe and a gas outlet pipe are arranged on the transparent cup, the upper end of the copper cup is provided with an opening, and an acetone solution, dry ice and a mercury thermometer are provided in the copper cup. According to the invention, gas to be determined is blown into the transparent cup through the gas inlet pipe; dry ice is added into the acetone solution in the copper cup and is continuously stirred by using the mercury thermometer so as to allow temperature of the copper cup to decrease; when the temperature decreases to the dew point of the gas to be determined, condensable acid mist begins to coagulate and forms fine dew on the external surface of the copper cup, which enables the acid mist to lose its original luster, and temperature displayed by the mercury thermometer at the time is the dew point of the gas; through control of temperature of a heat exchanger, the service life of equipment can be prolonged, and dew point corrosion is prevented.

Description

[0001] technical field [0002] The invention relates to a gas dew point measuring device. [0003] Background technique [0004] In the production of synthetic ammonia or methanol, semi-water gas should be produced in the gas-making section, and semi-water gas is produced in a gas generator, and the gas generator is equipped with a fire-tube waste heat boiler to recover blowing and gas production (up or down) ) of waste heat. In order to further recover the waste heat boiler gas and the upward and downward low-temperature heat, most enterprises have added soft water heaters behind the waste heat boilers, and some enterprises have installed steam superheaters in front of the waste heat boilers. After taking these measures, there is a common problem, that is, dew point corrosion, that is, low-temperature electrochemical corrosion. Although more heat is recovered, the problem of equipment corrosion is also intensified. The main cause of corrosion is the combustion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/68
Inventor 陆军周静
Owner ANHUI HUAIHUA
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