What s the deal with the boiler rumbling as soon as it burns?

The rumbling sound of the boiler as soon as it burns is because the heat of the heating surface of the boiler is not taken away in time, so it is vaporized locally, and when the bubbles increase, it begins to spread outward. When the diffused bubbles meet cold water, they begin to condense and become smaller in size. This change in volume changes in the water cavity, which causes a sound.

The boiler is buzzing when it burns, it may be that the internal scaling of the heating boiler is too much, and the scale should be removed immediately, otherwise it will cause the boiler water pipe or the furnace, and the bad bile acid in the body will cause the boiler to leak, or it may be because the fan air volume is more urgent, because this situation can be solved by opening the furnace door a little bit, due to the sound of the large scale washing of the gas heating boiler, at this time only need to clean the scale. If this is caused by too much, the limescale should be removed immediately.

The reasons for the high noise of the burner of the oil-fired boiler can be the following:

1. The shut-off valve in the oil circuit is closed or the oil intake is insufficient, and the oil filter is blocked.

2. The oil inlet temperature is low, the viscosity is too high or the pump oil inlet temperature is too high.

3. The oil pump is faulty.

4. The bearing of the fan motor is damaged.

5. The fan impeller is too dirty.

Oil-fired boiler burner noisy solution:

1. Check whether the valve in the oil pipeline is open, whether the oil filter is working normally, and clean the filter screen of the pump itself.

2. Heat the oil or reduce the oil temperature.

3. Replace the oil pump.

4. Replace the motor or bearing.

5. Clean the fan impeller.

The characteristic of the cause is that because the heat of the heating surface of the boiler is not taken away in time, it is vaporized locally, and when the bubbles increase, it begins to diffuse outward. When the diffused bubbles meet cold water, they begin to condense and become smaller in size. This change in volume changes in the water cavity, which causes a sound.

Hello, this is a normal phenomenon, indicating that the heat is very strong at this time.

Understanding the principle requires a certain knowledge of thermodynamics, The main reason for this phenomenon is that the temperature rises too fast, pay attention to the slow heating, and there is always a sound when working, that is, the structure of the boiler itself is unreasonable, the position of the boiler installation is unreasonable, etc., these problems can lead to the sound of the boiler.

If it is a radiator or pipe, it may be due to the thermal expansion and contraction caused by sudden heating and cooling, which does not matter much; If it is the sound of water with the bucket, that is, the phenomenon of boiling the pot, it is caused by the pipe being too thin or the furnace is burning too hard, so it can be replaced with a thick pipe or a circulating pump.

First of all, close the valve of the heating stove for water inlet and return, and the valve must be tightened. Then, open the water inlet valve, turn the air above the heater to ventilate, close the valve after all the air in the heater is released, and then slowly twist the return valve until you hear a sound. Subsequently, slowly turn the return valve to the ** section until you can't hear the sound, if there is a sound no matter how you adjust it, turn the back valve all the way open.

What are the causes of noise in household boilers?

When the fan is running under certain working conditions, it will produce different degrees of noise, including aerodynamic noise and mechanical noise.

1) Aerodynamic noise.

It consists of two parts: periodic exhaust noise (i.e., air flow rotation noise) and vortex noise. When the fan impeller is running under certain pressure conditions, it periodically squeezes the gas and hits the gas molecules, causing the gas around the impeller to generate velocity and pressure fluctuations, and radiate to the impeller in the form of sound waves, resulting in exhaust noise. When the impeller rotates at high speed, a large number of gas vortex will be formed on the surface, and the gas vortex will produce vortex noise when it separates on the impeller section.

The intensity of rotational noise is mainly related to the speed of the fan impeller, the static pressure of the exhaust, the flow rate of the fan and other factors. The vortex noise depends on the shape of the fan impeller and the velocity and flow regime of the gas to the casing.

Solution: Clean the fan impeller and cavity, in addition, it is also possible that the fixing screws are loose or the fan shaft is eccentric, so that professionals can operate and reinforce.

2) Mechanical noise.

It is mainly caused by the impact noise and friction noise caused by the low assembly accuracy of the fan and the unbalanced operation of the unit. It is also possible that the wall-hung boiler is not firmly fixed or does not fit tightly with the wall, resulting in the internal fan resonating with the casing during operation.

Solution: Adjust the soft connection points of the fan to make it balanced, or contact the after-sales installer to reinforce the wall-hung boiler.

2. Ignition noise.

1) The initial ignition wall-hung boiler roars.

During ignition, there is a roaring sound in the wall-hung boiler for heating and hot water, which is because the amount of gas is too much during the initial ignition, which causes the ignition to ignite.

Solution: The air pressure is too high to adjust the gas pressure; If the gas valve is a proportional valve, the proportion will be reduced; If the gas valve is a sectional valve, the small fire regulator is adjusted to reduce the gas flow of the small fire.

2) Ignition is delayed and accompanied by noise.

Excessive noise caused by ignition delay is usually caused by irregular ignition electrode ignition caused by too large or too small ignition electrode spacing, or failure caused by the poor pulse igniter itself.

Solution: Adjust the ignition needle distance or replace the pulser.

3. Combustion noise.

1) Excessive noise during combustion.

The noise emitted during the combustion process is excessive, including laminar flow, turbulent flame noise and oscillating combustion noise. The reasons may be: the length and elbow of the flue do not meet the requirements; The air tightness of the exhaust pipe is destroyed, and the exhaust gas is absorbed and noise appears; The gas pressure is too high; The maximum current of the proportional valve is adjusted too much.

Solution: unreasonable flue installation and correct installation; The chimney leaks, seal it with tin foil or replace the chimney.

2) Boiling water noise.

Boiling water noise occurs when the heating water is heated to a higher temperature in the combustion heat exchanger, which is caused by poor water quality, poor fin welding of the main heat exchanger, or blockage in the heat exchanger.

Solution: Improve water quality or replace heat exchangers; If the water quality cannot be adjusted, clean the filter and replace the rotor and flow limiting ring of the water valve (or directly replace the water valve).

Answer: In the case of normal operation of the boiler, it is estimated that the flue steel plate may be deformed due to heating, and the sound will be emitted under a certain elasticity. It may be that the negative pressure of the furnace and the flue is too large when the induced draft fan is opened, which causes the flue before and after the economizer to be elastically deformed, and this problem can be solved by reinforcing the flue steel plate. If there is a sound during the steam supply, it may be a water hammer phenomenon.

If even the house feels the vibration, and the boiler is a chain furnace, it may be that the grate is loose, and the sprocket and grate skip teeth, and there will be a loud noise. It can also be water hammer.

Not to mention the mechanism, understanding the principle requires a certain knowledge of thermodynamics, the main reason for this phenomenon is that the temperature rises too fast, pay attention to the slow heating, if there is always a sound when working, it may be 1 The structure of the boiler itself is unreasonable, 2 The location of the boiler installation is unreasonable, 3 The installation or layout of the external heating system pipeline and equipment is unreasonable.

The bubbles produced by supercooling and boiling burst.

There are several reasons that can cause abnormal boiler noise:

1. When there is scale in the base of the boiler heat exchanger, when the temperature rises to more than 65 degrees, there will be a rumbling sound in the heat exchanger, and when it is serious, there will be a slight shaking sensation when touching the boiler shell, and the scale needs to be cleaned.

2. There is a lot of dust on the fan blades inside the boiler that has not been cleaned, and there will be a large noise during operation, similar to the noise of the automobile engine, and the boiler will shake violently when it is serious, and the sound is not like this problem according to your description.

3. The radiator makes a chirping sound when the boiler is just ignited, similar to the sound of Xiangfeng socks in the folding wave iron sheet, which is the sound of deformation caused by the metal expansion of the heat exchanger fin due to local heating, which will disappear by itself after ignition for one minute, and there will be another time after the boiler is just shut down, this kind of sound is very common and does not need to be treated, according to the sound you described, it is most likely to be this reason.

The boiler ignition sound is very scary, what is going onAnswer: 1. Some large abnormal noises sometimes occur when the boiler is running, which may be caused by water impact. Water shock has multiple factors, not a single factor.

2. There is another possibility, the probability of occurrence in the past is very high. This is rarely the case because of the strict management of explosives and the fact that there are fewer detonators left in the coal. In the past, when burning a boiler, there were often detonators in the furnace**.

General water shocks will make a loud noise, but generally do not cause harm to the boiler.

The boiler ignition is very scary, what's going on.

1. Some large abnormal noises sometimes occur during the operation of the boiler, which may be caused by water impact. Water shock has multiple factors, not a single factor. 2. There is another possibility, the probability of occurrence in the past is very high.

This is rarely the case because of the strict management of explosives and the fact that there are fewer detonators left in the coal. In the past, when burning a boiler, there were often detonators in the furnace**. General water shocks will make a loud noise, but generally do not cause harm to the boiler.

Natural gas boilers, ignition is particularly loud.

Generally no problem.

1. If the opening speed of the gas valve is too fast and the flow rate is large, attention should be paid to reducing the gas flow during ignition, controlling the gas ** at the time of ignition to a minimum, and at the same time appropriately adjusting the opening of the damper during ignition to avoid deflagration. The ignition sound of the gas boiler is loud, and the ignition sound of the gas boiler needs to be dealt with by professional and technical personnel 2, the gas is normal, the air supply is insufficient 3, the oil intake is insufficient, if there is air in the oil pipe, it is necessary to tighten the oil pipe joint, and there are many reasons for the large ignition sound of the gas boiler, which needs to be checked in time to eliminate the fault. If the ignition sound of the gas boiler is loud, it is necessary to contact professional and technical personnel for inspection and maintenance or seek help from the boiler manufacturer.

The reason why there is a sound after the gas boiler is energized is that 1. The battery is insufficient, the ignition sound will be very small, and the frequency of the discharge sound will be much slower than usual. 2. If the ignition sound is crisp and powerful, but there is no fire, it may be that the gas pipeline is blocked, and it is necessary to check whether the pipeline is bent or flattened, and then straighten it out before ignition. 3. If the fire hole of the stove nozzle or fire cover is blocked, the gas cannot flow out, and it will not catch fire.

4. Caused by flame-out protection facilities, the gas stoves on the market have temperature measurement insurance facilities, when the fire nozzle reaches the corresponding temperature, and the pot can be burned smoothly, in this case, you need to put the lid on the fire, and wait for a few seconds to burn.