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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[0025] Example 1
[0026] Take the following steps:
[0027] Close the state of the air solenoid valve and gas solenoid valve at the front of the burner;
[0028] Check that the flanges of the upper heat exchanger of the W-shaped radiant tube and the flanges of the lower burner are well sealed;
[0029] In order to further improve the accuracy of the detection data, it is required that the air and gas manual ball valves connected to the front end of the radiant tube burner must be closed to prevent the mixing of outside gas;
[0030] Use a portable gas analyzer to pass the gas analyzer probe 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 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 suction in the de...
Example Embodiment
[0035] Example 2
[0036] Take the following steps:
[0037] Close the state of the air solenoid valve and gas solenoid valve at the front of the burner;
[0038] Check that the flanges of the upper heat exchanger of the W-shaped radiant tube and the flanges of the lower burner are well sealed;
[0039] In order to further improve the accuracy of the detection data, it is required that the air and gas manual ball valves connected to the front end of the radiant tube burner must be closed to prevent the mixing of outside gas;
[0040] Use a portable gas analyzer to pass the gas analyzer probe into the gas detection hole of the exhaust gas discharge pipe at the upper end of the burner;
[0041] The analyzer probe is 12cm deep into the exhaust 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 suction in the detec...
Example Embodiment
[0045] Example 3
[0046] Take the following steps:
[0047] Close the state of the air solenoid valve and gas solenoid valve at the front of the burner;
[0048] Check that the flanges of the upper heat exchanger of the W-shaped radiant tube and the flanges of the lower burner are well sealed;
[0049] In order to further improve the accuracy of the detection data, it is required that the air and gas manual ball valves connected to the front end of the radiant tube burner must be closed to prevent the mixing of outside gas;
[0050] Use a portable gas analyzer to pass the gas analyzer probe into the gas detection hole of the exhaust gas discharge pipe at the upper end of the burner;
[0051] The analyzer probe is 15cm deep into the exhaust 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 suction in the detec...
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