What is the reason why the boiler is prone to water consumption when it is burning?

1) When the boiler water level is lower than the minimum safe water level scale of the water level gauge, the boiler water shortage accident is formed

When the boiler is short of water, the water level is often not visible in the water level gauge. The inside of the table is whitish and shiny; The low water level alarm moves and sounds an alarm; Superheated steam.

increased temperature; The feed water flow is abnormally less than the steam flow.

Boiler water shortage is one of the most common accidents in boiler operation and often has serious consequences. Severe water shortage will cause the boiler to evaporate, the heating surface tube will be overheated, deformed, or even burned down; Leakage of the bulge causing the bulging tube to fall off; Overheating or over-burning of the steel on the heating surface, reducing or even losing the bearing capacity, and the pipe bursting; The furnace wall is damaged. Improper handling can even lead to boiler accidents.

2) Common causes of water scarcity are:

Negligence of the operation personnel, lax monitoring of the water level or misoperation; The operators left their posts without permission and gave up monitoring the water level and other instruments;

The failure of the water level gauge causes a false water level and the operator does not find it in time;

The water level alarm or water supply automatic regulator is out of order and is not detected in time;

Failure of water supply equipment or water supply pipelines, inability to supply water or insufficient water supply;

The operator forgets to close the blowdown valve after discharging the blowdown, or the blowdown valve leaks;

Water walls, convection bundles or economizers.

The pipe burst and leaked.

3) When the boiler is found to be short of water, it should first be judged whether it is a slight water shortage or a serious water shortage, and then the usual method of judging the degree of water shortage is "called water". The operation method of "calling water" is as follows: open the water discharge of the water level gauge to flush the steam pipe and water pipe; Close the steam pipe of the water level gauge; Close the drain.

If there is a water level in the water table at this time, it is a slight water shortage, because the water level is not visible in the water level table though. However, the boiler water level has not yet dropped below the water pipe, after the steam is turned off. As the steam condenses and the pressure decreases, the pot water is discharged into the water gauge through the water pipe.

If there is still no water level in the water level gauge through "calling for water", it means that the water level has dropped below the water pipe or even worse, which is a serious water shortage.

In the event of a slight water shortage, water can be immediately applied to the boiler to bring the water level back to normal. If the water level still cannot return to normal after water supply, the furnace should be stopped immediately for inspection.

In the event of a severe water shortage, the furnace must be shut down urgently. The key issue here is that it is strictly forbidden to water the boiler when the degree of water shortage has not been judged or it has been judged to be a serious water shortage, so as not to cause boiler accidents.

It should be pointed out that the "water calling" operation is only suitable for small boilers with a large relative water capacity, and is not suitable for power station boilers or other boilers with a relatively small water capacity.

4) The precautionary measures for water shortage accidents are:

Strengthen management and enhance the sense of responsibility;

Frequently carry out safety technology education, understand the structural characteristics of the boiler, and avoid blindly calling for water and water ingress.

Because the temperature is very high when the boiler boils water, the water vapor will evaporate when it is hot. The pressure cooker has a seal, so it won't run away.

Boiler fire is easy to consume water, in addition to normal evaporation, it is necessary to consider whether the boiler has water leakage.

It may be that the boiler outlet valve is not closed tightly and is leaking.

It may also be that the temperature is high and the water has evaporated, but there should not be a large amount of water loss, it may be that there is a sand hole in the pipe.

Aged water: commonly known as'Backwater', that is, water that has been stored for a long time. Drinking this kind of water often will significantly slow down cell metabolism and affect physical development for minors; Middle-aged and elderly people will accelerate aging; The incidence of esophageal cancer and gastric cancer is increasing in many places, which may be related to long-term drinking of aging water.

The toxic substances in aged water also increase with the storage time of the water.

Thousand boiling water: Thousand boiling water is water that has been boiling on the stove overnight or for a long time, and water that has been boiled repeatedly in an electric water heater. This kind of water is boiled for too long, and the water has a high content of non-volatile substances, such as calcium, magnesium and other heavy metal components and nitrite.

Drinking this water for a long time will interfere with people's gastrointestinal function, causing temporary diarrhea and bloating; Toxic nitrite can also cause hypoxia in the body, and in severe cases, coma, convulsions, and even death.

Steamer water: Steamer water is leftover pot water such as steamed steamed buns, and the nitrite concentration of steamer water used repeatedly is very high. Drinking this water, or boiling porridge with this water, can cause nitrite poisoning; Scale often enters the human body with water, and can also cause diseases of the digestive, nervous, urinary and hematopoietic systems, and even cause premature aging.

Unboiled water: The tap water that people drink is treated by chlorination and sterilization. 13 kinds of harmful substances can be separated from chlorine-treated water, among which halogenated hydrocarbons and chloroform also have carcinogenic and teratogenic effects.

When the water temperature reaches 90, the halogenated hydrocarbon content rises from 53 micrograms per kilogram to 177 micrograms, which is more than twice the national drinking water sanitation standard. Experts point out that drinking unboiled water increases the likelihood of bladder cancer and rectal cancer21 -38 . When the water temperature reaches 100, these two harmful substances will be greatly reduced with the evaporation of the vapor, if you continue to boil for 3 minutes, it is safe to drink.

Re-boiling water: Some people are accustomed to re-boiling the remaining warm boiled water in the thermos before drinking, in order to save water, coal (gas) and time. But this kind'Save'Not enough to take.

Because the water is boiled and burned, the water evaporates again, and the nitrite will rise, and if you drink this water often, nitrite will accumulate in the body.

1. The temperature of the pot Xiaokai furnace is too high, close to the boiling state; 2. There is leakage in radiators, joints, valves, and furnace pipes. I hope I will be helpful to you, thank you.