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2022-12-20

The flue, cold air, combustion supporting air, combustion and gas pipelines can cut off the gas, flue gas and air. When the hot air stove burns, open the flue valve to let the waste gas discharge through the flue; When the hot blast stove is supplying air, the flue valve is closed to cut off the flue passage.

2022-12-20

Classification of flue valves

The inlet flange on the angular valve body of the disc flue valve is connected with the hot air stove, the valve base is located on the flue, and the waste gas is discharged through the flue. The valve seat is provided with a water-cooled ring, which is installed between the angular valve body and the base, and is clamped by the bolts between the valve body and the base flange.

2022-12-20

Technical improvement measures for flue valve

1. The thickness of the steel plate at the round flange water chamber on both sides of the valve body is about 35m m, and the design is excessive. The steel plate here is reduced by 10mm. After improvement, not only the cost of raw materials can be reduced, but also the cooling performance of the cooling water in the water chamber can be improved.

2022-12-20

Reasons and solutions for valve not being closed tightly

The reasons why the valve can not be closed tightly are: 1. There are impurities stuck on the sealing surface, and the impurities are deposited at the bottom of the valve or placed between the valve clack and the valve seat. 2. The valve stem thread is rusted and the valve cannot rotate.

2022-12-20

How to select appropriate gate valve for desulfurization flue gas

Many boiler enterprises do not know how to choose the gate valve for desulfurization flue gas. Now there are electric, louver and electro-hydraulic valves on the market. Let's talk about their respective performance from three aspects: configuration, sealing and use:

2022-12-20

Relevant knowledge of flue gas damper

What is the flue gas damper? The flue gas damper valve is installed in the flue connecting the boiler and the desulfurization system. At present, jamming, ash accumulation, leakage and short service life are the problems faced by the industry. Corrosion resistance, temperature resistance, flexible driving and good sealing are the priorities of the industry when selecting damper valves.

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