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A detection device and detection method for non-condensable gas in steam

A detection method, a gas detection technology, applied in the field of coal chemical industry, can solve the problems of long measurement time, damage to the instrument, failure to measure, etc., and achieve the effect of ingenious method, guaranteed output, and simple device

Active Publication Date: 2019-03-15
CHINA COAL SHAANXI YULIN ENERGY & CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to make the test results reliable, the measurement time is still relatively long, and there are many points to be measured
In addition, since the water vapor is cooled into water, the non-condensable gas is either enriched or diluted by air, so it cannot be quantitatively measured
Therefore, direct measurement is firstly caused by serious damage to the instrument, and secondly, it is also inaccurate. In fact, the gas detector cannot directly measure water vapor.
If you use an air bag to take water vapor back to the laboratory for chromatographic measurement, it will basically become water, which cannot meet the requirements of sample injection and cannot be measured

Method used

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  • A detection device and detection method for non-condensable gas in steam
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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1 of the present invention: a detection device for non-condensable gas in steam, including a tank device 1, a flow meter 2, b flow meter 5, a gas detection device 3 and a gas washing bottle device 4, the tank device 1 The first right-angle pipe 6 is connected to the a flowmeter 2, the a flowmeter 2 is connected to the gas washing bottle device 4 through the hose 7 and the long conduit 8, and the gas washing bottle device 4 is connected to the b flowmeter 5 through the short conduit 17 , b The flow meter 5 is connected to the gas detection device 3 . The gas washing bottle device 4 includes a glass bottle body 9 and a rubber stopper 10 , and the rubber stopper 10 is covered on the mouth of the glass bottle body 9 . The tank device 1 comprises a tank body 13, a tank body holder 14, a pipe body holder 15 and a base 16, the tank body 13 is arranged on the base 16 by the tank body holder 14, the pipe body holder 15 and the tank body holder 14 Connection, the bott...

Embodiment 2

[0036] Embodiment 2 of the present invention: a detection device for non-condensable gas in steam, including a tank device 1, a flow meter 2, b flow meter 5, a gas detection device 3 and a gas washing bottle device 4, the tank device 1 The a flow meter 2 is connected to the a flow meter 2 through the first right-angle pipe 6, the a flow meter 2 is connected to the gas washing bottle device 4 through a long conduit 8, the gas washing bottle device 4 is connected to the b flow meter 5 through a short conduit 17, and the b flow meter 5 is connected with the gas detection device 3. Long conduit 8 is immersed in the pipe section length below the liquid surface in the gas washing bottle device 4 and is 0.9cm. The short conduit 17 is not in contact with the liquid in the gas washing bottle device 4 .

[0037] The gas washing bottle device 4 includes a stainless steel bottle body 11 , a rubber stopper 10 and a U-shaped tube 12 , the rubber stopper 10 covers the mouth of the glass bot...

Embodiment 3

[0039] Embodiment 3 of the present invention: a detection method for non-condensable gas in steam, including a qualitative detection method, appropriately increasing the discharge of water vapor to be tested, and increasing the distance between the first right angle tube 6 and the steam discharge port by adjusting the distance between The amount of water vapor sucked into the gas washing bottle device 4; the non-condensable gas is accumulated in the gas washing bottle device 4 and the entire measuring pipeline. The state of the gas inhalation gas detection device 3 is judged by the air bubbles sucked in the gas washing bottle device 4, and the water vapor suction amount and the air supplementary amount are compared by comparing the values ​​of the two flowmeters before and after the gas washing bottle device 4. When the measurement time is longer than 3 minutes and the measurement value of the gas detection device 3 is always zero, it can be judged that there is no CO leaked in...

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Abstract

The invention discloses a detection device for non-condensable gas in steam. The detection device is composed of a tank body device, an a flowmeter, a b flowmeter, a gas detection device and a gas bottle washing device. The tank body device is connected with the a flowmeter by a first quadrature tube; the a flowmeter is connected with the gas bottle washing device by a hose and / or a long conduit; the gas bottle washing device is connected with the b flowmeter by a short conduit; and the b flowmeter is connected with the gas detection device. In addition, the invention also discloses a detection method for non-condensable gas in steam. The device is simple and practical; and the method is accurate and reliable. A problem that the non-condensable gas in steam can not be measured directly can be solved. Using the device and the method, a leak steam source can be detected timely and accurately and a leakage amount can be monitored accurately; a phenomenon that blind overall stopping is carried out for checking a leak point and repairing after discovery of leakage can be avoided; scientific repairing arrangement is realized; the yield is guaranteed; and the dangerous level is controlled to be in a controllable range.

Description

technical field [0001] The invention relates to a detection device and a detection method for non-condensable gas in steam, belonging to the field of coal chemical industry. Background technique [0002] The high-level heat of water gas and shift gas in the conversion device in the coal chemical production process is recovered by waste heat boiler (heat exchanger), and three grades of by-products are 0.46MPa(G), 1.10MPa(G) and 4.10MPa(G). The saturated steam is sent to the superheated steam pipe network after being heated respectively. [0003] When the waste heat boiler (heat exchanger) of the transformation device leaks, the water gas or transformation gas (pipe side) is connected to the superheated steam (shell side), and enters the users of the whole plant through the hot steam pipe network. The water vapor is condensed into condensed water after being utilized by the heat of each user, and the remaining non-condensable gas is high-concentration carbon monoxide, hydroge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/26G01M3/38
CPCG01M3/26G01M3/38
Inventor 艾显峰唐怀江韩明学马军鹏高钧张阅郭兆银邹春玉洪二艳杨举铜何延涛武祥勇
Owner CHINA COAL SHAANXI YULIN ENERGY & CHEM
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