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Safe and efficient test run method for coke oven gas blower

A technology of coke oven gas and blower, which is applied in the direction of mechanical equipment, machine/engine, liquid fuel engine, etc., can solve problems such as fan surge, safety risks, and test run failure, so as to reduce test run current, avoid test run failure, and improve The effect of test run efficiency

Pending Publication Date: 2022-08-09
WUHAN IRON & STEEL GRP ECHENG IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This test method has the following problems: 1. There is a safety risk after opening the air test valve, and the gas outlet is not closed tightly, which will cause a large amount of air to enter the gas main pipe; 2. The air valve is opened too much during the air test, which will cause the fan to surge, which is not accurate 3. Due to the high air density, the test current reaches 21A (54% of full load), and the power consumption is relatively large.

Method used

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  • Safe and efficient test run method for coke oven gas blower

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] see figure 1 , the safe and efficient commissioning method of the coke oven gas blower of the present embodiment comprises the following steps:

[0017] 1. In order to avoid excessive suction during the reversing process, the liquid in the water seal operation in front of the machine enters the gas main pipe. Before the test machine, close the valve of the fan drain pipe, start the oil pump, and open the water valve of the oil cooler;

[0018] 2. Close the inlet and outlet valves, air test valves and manholes of the gas blower;

[0019] 3. Open the DN50 gate valve of the fan balance pipe, the opening degree is 50%;

[0020] 4. Start the fan, steadily increase the speed to 1000r / min, fully open the balance pipe gate valve, after 3 minutes of operation, increase the speed to 1650r / min, after 3 minutes of stable operation, it means that the test run is successful, if it can't run stably, find the reason, and try again Carry out the test run according to the above steps u...

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Abstract

The invention relates to a safe and efficient test run method of a coke oven gas blower, which comprises the following steps of: 1) externally connecting a balance pipe at the inlet end and the outlet end of the blower, and installing a balance valve on the balance pipe; the method comprises the steps of (1) starting a fan, (2) closing a gas inlet valve and a gas outlet valve of a gas pipeline connected with the fan, and closing an empty test valve and a manhole valve, (3) opening a balance valve with the opening degree of 40-60%, (4) starting the fan and stably increasing the rotating speed to 60% of the test run rotating speed, and (5) fully opening the balance valve and increasing the rotating speed to the test run rotating speed after the fan runs for 3 minutes.

Description

technical field [0001] The invention relates to the technical field of operation and maintenance of a coking gas blower, in particular to a safe and efficient commissioning method for a coke oven gas blower. Background technique [0002] The coke oven gas blower is an important equipment facility to extract the waste gas produced on the coke oven and send it to the subsequent process for purification and recycling. The test run of the gas fan is the main measure to verify the quality of maintenance and whether the fan is in good condition after long-term deactivation. The test run of the gas fan mainly includes gas test run and air test run. At present, the air test method is mainly used. The conventional air test is to close the inlet and outlet gas valves of the fan, and open the air test valve and the manhole behind the machine. This test method has the following problems: 1. There is a safety risk after opening the air test valve. If the gas outlet is not tightly clos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00F04D29/66
CPCF04D27/001F04D27/007F04D27/008F04D27/004F04D29/668
Inventor 薛晓霞张晓辉吴潇江胜勇郑春峰
Owner WUHAN IRON & STEEL GRP ECHENG IRON & STEEL CO LTD