What is the cause of boiler boiler water blackening?

1. Start the feed pump to feed water.

1. Check and close the boiler fixed row manual, electric door, descending pipe drain door, fixed row mother pipe drain door, primary and secondary desuperheating water doors, reheater desuperheating water doors, water supply pipeline backwash manual doors, water supply pipeline dredge water doors, economizer dredge water doors.

2. Check and open the air valve of the boiler body, the water gate of the superheater, the water gate of the reheater, and the air exhaust valve.

3. Contact the steam turbine to start a feed pump, adjust the speed to the minimum, use the feed water bypass to feed the steam drum, adjust the opening of the bypass adjustment door, and control the water supply speed.

4. When the water level of the steam drum reaches -100mm, stop the water supply, open the economizer recirculation door, and comprehensively check that the water supply pipeline and valve are not leaking, and the report value is long.

2. Hydrostatic pressure water inlet of the deaerator.

1. Check and close the manual and electric doors of the boiler fixed row, the water discharge door of the descending pipe, the water trap door of the fixed row mother pipe, the doors of the primary and secondary desuperheating water, the desuperheating water doors of the reheater, the water supply pipeline dredging water gate, and the economizer dredging water door.

2. Check and open the air valve of the boiler body, the water gate of the superheater, the water gate of the reheater, and the air exhaust valve.

3. Contact the steam turbine deaerator to increase the pressure and open the inlet and outlet doors of a feed pump.

4. Take the water supply bypass to feed water to the steam drum, adjust the opening of the bypass adjustment door, and control the water supply speed.

5. When the water level of the steam drum reaches -100mm, stop the water supply, open the economizer recirculation door, and comprehensively check that the water supply pipeline and valve are not leaking, and the report value is long.

3. Water inlet from the water pump.

1. Close the fixed row door, the descending pipe discharge door, and the fixed row mother pipe trap door.

2. Check and open the air valve of the boiler body, the water gate of the superheater, the water gate of the reheater, and the air exhaust valve.

3. Contact the steam engine to turn on the water pump, open the water gate and control the water speed.

4. When the water level of the steam drum reaches -100mm, stop the water supply, comprehensively check the water supply pipeline and valve for no leakage, and report the value for a long time.

Fourth, water requirements and precautions.

1. Water quality requirements: must meet the water supply standards.

2. Water temperature requirements: the water temperature is 20 70.

4. The water loading speed should be uniform and slow, and the temperature of the upper and lower walls of the steam drum should be controlled to be 40, and the temperature difference between the feed water temperature and the wall of the steam drum should be 40.

5. Check the operation of the electric contact water level gauge in the main control room after the steam drum sees the water level, and make an accurate comparison with the reading of the two-color water level gauge. The water level of the two-color water level gauge is clearly visible.

6. According to the site situation or the requirements of the value: put in the heating device at the bottom of the boiler.

Before and after the water is filled, the expansion is recorded once.

There are the same questions on the Tianya Q&A and you can check them out.

Hello dear! Boiler steam blackening refers to the appearance of black stains on the surface of the fire pipe or boiler, which is usually caused by uneven steam, too fast heating of the boiler or too high temperature, resulting in turbidity of the steam. When running, the temperature of the boiler is too high, and the water droplets in the steam are sprayed to the wall, which is easy to form coking on the surface and evaporate, resulting in black stains.

There are many ways to solve boiler steam blackening, including checking the boiler unit, maintenance, changing fuel, temperature regulation, checking the pump and water flow, agitator cleaning, high-pressure fan regulation, and so on. After the above measures, Zhinaiwu can effectively avoid the blackening of boiler steam and better protect the boiler. In addition, higher quality boilers can be selected according to needs to reduce the heating time of the boiler, increase the service life of the boiler, and effectively reduce the possibility of blackening.

Summary. Hello dear<>

The blackening of <> boiler steam is usually due to the presence of impure substances in the steam, such as impurities containing chemical elements such as carbon and sulfur, or due to incomplete combustion of fuel. During boiler operation, if there is dirt or carbon deposits in the burner, flue, air intake, etc., it can also cause the steam to turn black. When boiler steam turns black, it may cause harm to equipment, environment and personnel, so it is necessary to take corresponding measures to deal with it in time.

Specific response measures include:

What's going on with the boiler steam blackening?

Hello dear<>

<> boiler steam dust is usually due to the presence of impure substances in the steam, such as impurities containing chemical elements such as carbon and sulfur, or due to incomplete combustion of fuel. During the operation of the boiler, if there is dirt or carbon deposits in the burner, flue, air inlet and other parts, it can also cause the steam to turn black. When boiler steam turns black, it may cause harm to equipment, environment and personnel, so it is necessary to take corresponding measures to deal with it in time.

Specific response measures include:

1.Inspect boiler burners, flues, and air intakes for fouling or carbon deposits, and clean and maintain them. Removing dirt can improve combustion efficiency and reduce incomplete combustion.

2.Strengthen the environmental management around the boiler to reduce the harmful components in the exhaust gas slag compass, such as installing filters and installing high-efficiency dust collectors. Proper treatment of exhaust gas can effectively reduce the emission of harmful substances and reduce environmental pollution.

3.Optimize the working parameters of the boiler, such as adjusting the air supply volume, inlet air temperature, combustion temperature, etc., to achieve the best working condition. 4.

Regularly maintain and maintain the boiler, such as checking the water quality, cleaning the internal pipes, etc., to ensure that the equipment is in good working condition, and reduce the occurrence of failures and accidents.

To sum up, the blackening of boiler steam may be caused by a variety of reasons, and measures should be taken to deal with it in time. In addition, it is also very important to use the boiler safely, and it is necessary to comply with the relevant regulations and the safety <> operating procedures

Summary. Hello dear, it is a pleasure to serve you. According to your description, you can find that the blackening of boiler steam may be caused by the following reasons:

1.Insufficient combustion: Insufficient combustion in the boiler will produce a large amount of carbon dioxide and water vapor, in which carbon dioxide reacts with oxygen in the air to generate harmful gases such as carbon monoxide, which in turn blackens the steam.

2.Contaminant deposition: Long-term use in the boiler may form a thick layer of dirt on the inner wall of the boiler pipes, which may contain elements such as iron and sulfur, and when the boiler is started, these dirt are carried into the steam, causing the steam to turn black.

3.Water quality problems: Water quality problems in boilers can also cause steam blackening.

If the water contains too many impurities and salts, these substances will collect in the steam after heating, forming black particles. 4.Boiler Setup Issues:

If the exhaust valve or safety valve inside the boiler is faulty or not properly set, it will also cause the steam to turn black. Failure of these valves can lead to high steam pressure or poor exhaust gas, which can cause the steam to turn black. In view of this situation, the inspection and maintenance of the boiler should be carried out in time to ensure that the combustion is sufficient, the water quality is clean, and the valve is set reasonably, so as to ensure the quality of steam.

Hello dear, it is a pleasure to serve you. According to your description, you can find that the blackening of boiler steam may be caused by the following reasons:1

Insufficient combustion: Insufficient combustion in the boiler will produce a large amount of carbon dioxide and water vapor, in which carbon dioxide reacts with oxygen in the air to generate harmful gases such as carbon monoxide, which in turn turns the steam black. 2.

Contaminant deposition: Long-term use in the boiler may form a thick layer of dirt on the inner wall of the boiler pipes, which may contain elements such as iron and sulfur, and when the boiler is started, these dirt are brought into the steam, and the guide limb bends the reeds to cause the steam to turn black. 3.

Water quality problems: Water quality problems in boilers can also cause steam blackening. If the water contains too many impurities and salts, these substances will collect in the steam after heating, forming black particles.

4.Boiler Setup Problems: If the exhaust valve or safety valve inside the boiler is faulty or not properly set, it will also cause the steam to turn black.

Failure of these valves can cause the steam pressure to be too high or the exhaust is not smooth, which can cause the steam to turn black. In view of this situation, the inspection and maintenance of the boiler should be carried out in time to ensure that the combustion is sufficient, the water quality is clean, and the valve is set reasonably, so as to ensure the quality of steam.

My boiler has been used for several years, and this phenomenon has not occurred, but it has been stopped for more than a month recently, and suddenly this phenomenon has appeared recently, and I am doing bean payment.

Oh, okay. Pro, it may be caused by sediment.