Types of noise and its diagnostics
House heating system
If water is noisy in the heating pipes during the operation of the heat supply, then there are certain reasons for the occurrence of this effect. First you need to identify them, and then proceed to reduce the noise or completely eliminate it.
Why does the water in the heating pipes make noise and how to correct this deficiency? Let's deal with the main types of extraneous sounds. They indicate the objective factors in the occurrence of the undesirable effect:
- Crackling pipes. Occurs when the heating system is turned on;
- Clicks that appear at regular intervals;
- Constant hum in highways;
- A barely audible knock.
All these extraneous effects - noise in the heating battery or radiators significantly reduce the comfort of living in the house. In addition, they may indicate that the heating supply is not working properly. If you do not take action to remedy the situation in time, some heating element may fail.
If the heating pump or other component of the system makes noise, you should first try to localize the cause of the extraneous sounds. To do this, it is recommended to use the following technique:
- Trace the frequency of occurrence of the effect.
- Try to identify the relationship - an increase in temperature in pipes, pressure surges, etc.
- Make sure that the noise in the heating boiler comes from it, and not from other objects in the boiler room.
If it has been identified that the source is a component of the heating system, certain actions should be taken to eliminate this phenomenon.
Often, noise in the heating riser appears due to faulty elements of the safety group - an air vent and a drain valve. Therefore, it is recommended to first check their functionality.
Black steel pipes for heating: cons
The iron pipe for heating began to be used almost immediately after its introduction on the market. It has great mechanical strength, the ability to withstand significant pressure and temperature.
According to the manufacturing method, there are seamless (seamless) and sutured. The second type is obtained by bending and welding sheet metal.
Note! Which pipe for heating is better to choose depends on the situation, but seamless products are more durable and reliable.
A steel pipe for heating is not without drawbacks, including susceptibility to corrosion, high weight, insufficiently smooth inner surface, as well as the need for welding during installation. The outer surface can be protected with a layer of paint and must be renewed periodically.
The inner surface cannot be protected in this way, so it corrodes, especially if there is no water in the system or it is drained from the pipe. The wall thickness, and, accordingly, the outer diameter of steel pipes is greater than that of communications from other materials with a similar inner section.
Noise in heating radiators
Heating radiator repair
To identify why heating radiators make noise, you must first check their condition. Often the reason for this is their breakdown - damage to the case or other obvious design defect.In this case, a battery replacement or restoration work is performed.
If everything is normal with the appearance and integrity, the type of noise is determined. Most often, the effect occurs in the form of clicks or constant hum. This can be explained by several factors:
- The appearance of a small airlock... It only slightly hinders the movement of hot water, but at the same time there is a hum in the system;
- A large number of foreign elements in the heating device... This is a common reason why radiators make noise;
- Malfunctions of the thermostat... The check stem has shifted resulting in unwanted noise defects;
- Incorrect battery installation... Vibration during the flow of the heating medium is transmitted to the mounting units in the wall.
These are the main causes of noise in radiators. After correct diagnosis, you can start to work to reduce the sound effects.
In a centralized heating system, only a management company can fix a noisy riser. To do this, you must draw up a statement and hand it over to representatives.
Mayevsky crane design
The elimination of the airlock can be done using the installed Mayevsky crane. It is designed specifically for this purpose.
With the noise of the heating batteries, the autonomous heat supply should be stopped so that the water temperature drops to + 25-30 ° C. Then you should do the following:
- Open Mayevsky's tap.
- Fill the heating system with water gradually.
- Wait until coolant flows from the tap pipe. It should be weaved for 1.5-2 minutes so that the air lock is completely removed.
Then the system is fully started up and checked to see if the noise has appeared in the heating radiators again. If the cause has been identified correctly, this effect will no longer occur.
Debris concentration in the radiator
To eliminate noise in the radiator due to a large amount of debris, the condition of the strainer is first checked. The presence of foreign elements in it (the remains of rusting pipes and radiators, limescale) indicates a clogged system.
Having found out the cause of the noise in the radiators, the system should be cleaned. To do this, you can use several ways:
- Hydrodynamic... Garbage and limescale are removed from the mains and batteries under the action of a strong pressure of water;
- Chemical... Special reagents decompose the clog into small fractions, which are then flushed out of the heating system.
In this way, noise can be eliminated.
Before choosing a cleaning technology, in particular a chemical one, it is necessary to read the instructions for using the composition or method. In some cases, they can adversely affect the integrity of system components.
It is easiest to diagnose the appearance of noise in heating radiators due to improper installation. Its source is the fasteners installed in the walls. In this case, it is necessary to replace them and re-install them.
The noise in heating radiators can be caused not only by the problem in them. In some cases, the reason is the malfunctioning of other system components - boilers or pumps. Experts recommend a comprehensive approach to solving the issue of noise in heating radiators. Only a complete diagnosis will help determine the true cause.
Why is the water in the batteries black
We have already said more than once in other articles of this resource that each system, circuit, device, its types and subspecies used in heating have their own advantages and disadvantages. This rule was not spared by aluminum radiators.
A heating radiator is such equipment that will cope with its task, regardless of its type and material from which it is made, provided that it is correctly calculated for a particular room.Therefore, first of all, consumers are interested in the disadvantages of the radiators they choose.
If we compare the price category of aluminum and other types of radiators, such as bimetallic and steel, then aluminum will cost less.
As for the disadvantages of aluminum radiators, they, as you already understood, exist.
Perhaps the most significant drawback of these types of radiators is their poor resistance to electrochemical corrosion. This process is especially pronounced with increased acidity of the coolant and the presence of mechanical impurities in it, in the form of sand, small stones, rust, scale. These mechanical impurities destroy the protective layer that covers the inner walls.
It turns out that solid particles destroy the protective layer, and then the unfavorable chemical composition of the coolant comes into play. The so-called cavities are formed, which is why the ability to hold pressure drops by as much as this process is aggravated. Ultimately, the radiators leak.
During the oxidation process, gases are formed, which from time to time air the sections of the heating system in the absence of automatic air vents.
Noise in heating pipes
Types of heating pipes
How to determine why heating pipes make noise and what caused this phenomenon? The first step in identifying the causes is to follow the methodology described above. So, a constant hum may indicate incorrect operation of the circulation pump.
The noise of water in heating pipes can be caused by a number of factors. Often they are complex in nature - as if adjusting to each other, they create a complex kind of sound effects. Let's deal with the cause of noise in heating pipes by the nature of the sound:
- Bubbles and clicks indicate a blockage in the pipes.... Reducing the bore diameter creates excessive pressure in a certain section of the system, which is the cause of noise;
- Cracking sound causes air valve breakage... After checking it and detecting a malfunction, replace it;
- Vibration caused by improper installation... Noise in the heating pipe occurs when the coolant passes - the line can hit the wall.
The easiest way to get rid of extraneous sounds is to flush the heating system. To do this, you can use the methods described above. Diagnosis of incorrect attachment is carried out by touching the line. If strong vibration is felt with simultaneous noise of water in the heating pipes, additional fasteners should be installed.
The water in the heating pipes can make noise due to improper operation of the mixing unit - a large temperature difference leads to the expansion of the metal lines and the appearance of extraneous noise.
How to choose the right pipes for heating
When choosing a pipe for heating, several important aspects must be considered:
- type of pipeline laying;
- average water temperature and pressure inside the systems;
- heating configuration from pipes (smooth or flexible);
- location of the pipeline.
The type of heating system largely determines the choice of products for its arrangement. Central heating pipes used in multi-storey buildings must be strong enough to withstand a pressure of 16 atm. Products for individual systems used in cottages or private houses operate at a pressure of no more than 2-3 atm.
Note! Pipe routing can be done outside or hidden in walls, under the floor, inside a box made of wall panels or drywall.
Which pipes for heating are better also depends on the possibility and ease of repairing batteries or other elements of the system if necessary.The network can be with gravity (natural) or forced circulation, which also affects the choice of heating pipe.
An important factor when choosing pipes is the pressure in the heating system.
The distance observed between communications depends on their material and diameter.
Heating pump noise
Breakdown of the heating circulation pump
Constant noise in the heating pump may appear due to partial breakdown of its components - the impeller or rotor. At the same time, the functioning of the entire system deteriorates, which leads to a decrease in the efficiency of its work. To eliminate this cause, repair the pump or install a new one.
Also, constant noise in the circulation pump can be caused by its unstable operation. voltage drops lead to a loss of synchronization and, as a result, to an uneven movement of the coolant. This can cause noise in the heating system in other areas - in pipes and radiators. It is possible to check the operation of the pump only after a complete diagnosis. It is impossible to do it at home without special equipment.
In addition, noise effects in the riser or other areas of the heating supply may occur due to a pump malfunction for the following reasons:
- Incorrect installation... The rotor of the device must be strictly horizontal;
- Inconsistency of equipment power with calculated data... This leads to a significant increase in the rate of flow of the coolant through the mains. The only way out is to install a pump of the appropriate power.
In practice, it is extremely difficult to diagnose noise in a heating circulation pump. To do this, it is necessary to dismantle it and disassemble the structure. This can be done only with special skills and diagnostic tools. Therefore, this work is best entrusted to professional repairmen.
For the correct calculation of the pump power, it is recommended to use special software systems.
Problems with the batteries themselves
Batteries in a private house do not heat, what should I do? If there are no problems with the boiler and it is working correctly, then the reason why the batteries are cold must be looked for in the circuit itself. Possible options:
- airing;
- pollution;
- insufficient pressure;
- incorrect pipe routing;
- incorrect connection of heat exchangers.
If the batteries are cold, then you need to check all of the above factors. We have already written in more detail about what to do if the batteries do not heat up. The specificity of a private house is that all characteristics can be controlled independently.
You need to check the circuit for air locks. There are special taps and air vents for this.
Then make sure that there is no dirt in the pipes and heat exchangers. How to do it? We'll have to drain the cold batteries in a private house. What to do is known, you need to unscrew one end (bottom) in the battery and substitute a larger vessel. If black water pours out, then there is nothing to think about - this is pollution. It is necessary to flush the circuit to clean water. Sometimes a thick slurry flows out of the radiators along with the water. This is dirt that has gathered in abundant quantities.
What other reasons could there be why cold batteries in a private house? If the problem is not air or pollution, then circulation is impaired. This could be due to low pressure. In general, in an autonomous circuit, the coolant pressure does not exceed two atmospheres. If you have new batteries, then look at their passport. In modern heat exchangers, the requirements for working pressure are higher than in Soviet models. Pay attention to this.
Everything about the heating pump: repair, installation, maintenance.
If you want to repair the heating systems of a country house with your own hands, then you are here.
The principle of heating with air from a gas boiler
One of the relatively new home heating systems is heating with air, which is heated from a gas boiler. In this case, contact occurs through a special heating element. There is no high temperature and pressure in the heating pipes.
The principle of operation is as follows: with the help of gas equipment, metal is heated, which transfers heat to the air; further, thanks to the fan, it enters the pipes, which need to drive the heated air into the room. In such a scheme, it is better to use metal thin-walled or flexible corrugated foil products.
Note! The air heating system must be calculated and installed during the construction phase of the building.
The placement of the heating pipe in the wall is often used, however, it is important to note its bulkiness and loud noise during use.
A separate issue is related to the circulation of warm air. Allocate:
- closed circulation;
- forward flow;
- recirculation with the possibility of supplying air from the outside (from the street).
The principle of an air heating system does not imply the presence of high pressure in the network, therefore pipes can be selected without special strength characteristics
The last option is best suited, which, by installing additional filters (electronic, mechanical or chemical), allows you to fill the room with purified air. The advantages of such a system are the organization of heating from pipes without batteries, the efficiency is more than 90%, efficiency and aesthetic appeal.
XLPE pipes for heating
It is impossible to use transparent pipes for heating made of simple polyethylene. A cross-linked polyethylene product is suitable as thermal communication. Crosslinking technology allows you to obtain additional bonds between molecules in the polymer structure.
As a result, the material has a high density, withstands significant pressure, coolant temperature up to +90 ° C. It can be used for underfloor heating under the laminate and used for laying underground. In a heated form, a polyethylene pipe for heating lends itself to deformation to give it the required shape, which remains after cooling.
The lightness of the structure does not place undue stress on the supporting elements When choosing the required product, it is important to consider at what pressure the heating pipe will mainly be operated.
XLPE pipes are used in complex high pressure heating systems
The communication period declared by the manufacturers from cross-linked polyethylene is efficient in the following modes:
- 7 bar at 90 ° C;
- 11 bar at 70 ° C.
Polyethylene pipes for heating are connected to each other with press fittings using a special tool.
