Online detection method for leakage of W-shaped radiant tube of annealing furnace
A detection method and radiant tube technology, which can be applied in the direction of detecting the appearance of fluid at the leak point, measuring device, using liquid/vacuum degree for liquid tightness measurement, etc., can solve the problem of insufficient combustion of gas, easy damage of exhaust pipe, The radiant tube is easy to become brittle and damaged, which can save manpower and time and ensure the quality of production.
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Embodiment 1
[0026] Take the following steps:
[0027] Close to detect the status of the air solenoid valve and gas solenoid valve at the front of the burner;
[0028] Check that the upper heat exchanger flange and the lower burner flange of the W-type radiant tube are sealed and intact;
[0029] In order to further improve the accuracy of the detection data, it is required that the frontmost air and gas manual ball valves connected to the radiant tube burner must be closed to prevent the mixing of outside gas;
[0030] Use a portable gas analyzer, and pass the probe of the gas analyzer into the gas detection hole of the exhaust gas discharge pipe at the upper end of the burner;
[0031] The analyzer probe penetrates 14cm into the exhaust gas pipe, and the gap between the analyzer probe and the detection tube is sealed with a gasket;
[0032] The annealing furnace is in normal production state, the positive pressure in the furnace is 15DAPA, and the exhaust gas pipeline in the detection ...
Embodiment 2
[0036] Take the following steps:
[0037] Close to detect the status of the air solenoid valve and gas solenoid valve at the front of the burner;
[0038] Check that the upper heat exchanger flange and the lower burner flange of the W-type radiant tube are sealed and intact;
[0039] In order to further improve the accuracy of the detection data, it is required that the frontmost air and gas manual ball valves connected to the radiant tube burner must be closed to prevent the mixing of outside gas;
[0040] Use a portable gas analyzer, and pass the probe of the gas analyzer into the gas detection hole of the exhaust gas discharge pipe at the upper end of the burner;
[0041] The analyzer probe penetrates 12cm into the exhaust gas pipe, and the gap between the analyzer probe and the detection tube is sealed with a gasket;
[0042] The annealing furnace is in normal production state, the positive pressure in the furnace is 17DAPA, and the exhaust gas pipeline in the detection ...
Embodiment 3
[0046] Take the following steps to proceed:
[0047] Close to detect the status of the air solenoid valve and gas solenoid valve at the front of the burner;
[0048] Check that the upper heat exchanger flange and the lower burner flange of the W-type radiant tube are sealed and intact;
[0049] In order to further improve the accuracy of the detection data, it is required that the frontmost air and gas manual ball valves connected to the radiant tube burner must be closed to prevent the mixing of outside gas;
[0050] Use a portable gas analyzer, and pass the probe of the gas analyzer into the gas detection hole of the exhaust gas discharge pipe at the upper end of the burner;
[0051] The analyzer probe penetrates 15cm into the exhaust gas pipe, and the gap between the analyzer probe and the detection tube is sealed with a gasket;
[0052] The annealing furnace is in normal production state, the positive pressure in the furnace is 15DAPA, and the exhaust gas pipeline in the...
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