Traction regulator for solid fuel boilers: selection, installation and tuning with your own hands
Traction regulator is an automation designed to control the combustion and control of temperature. The uniqueness of this device is that it is completely energy.Dependent, and therefore, in the absence of electricity, the boiler will be able to continue the operation and the functioning of the heating system will be stable. The traction regulators are installed on most solid.Fuel boilers of a simple type. Modern boilers already use more complex and multifunctional mechanisms. But these remain popular because of several advantages:
- Simplicity in design and operation;
- The ability to make with your own hands;
- High accuracy;
- Low cost and ease of repair.
Quite banal, but very important advantages of traction regulator for solid fuel boilers. They are bought for both old and modern, expensive boilers
The traction regulators are important in operation, but how does a simple design take so much on itself?
One.1 design and principle of action
The device diagram is quite simple. The main structural elements are:
- Temperature adjustment handle;
- Rod and guide;
- Actuating mechanism;
- Submersible sleeve;
- Thermal.Sensitive element;
- Drive lever;
- Fasteners of the handles and levers;
The main component is a sensor responding to temperature fluctuations. It interacts with a spring, which when heated or cooling activates the working part (sleeve and rod).
That, in turn, by means of a mechanical drive is associated with the fuel compartment damper. The traction regulator for solid fuel boilers under certain conditions opens and closes the door, maintaining a given temperature.
The principle of operation of the device is banal, but is still effective. When the damper opens, more air enters the furnace. Due to this, fuel combustion occurs more intensively, more heat is released, the room warms up more efficiently. Когда заслонка закрывается, топливо слабее снабжается кислородом и едва тлеет.
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In short, describe the operation of the traction regulator, based on design features, the following scheme will turn out:
- With a decrease in thermal load, the thermostatic sensor responds to fluctuations;
- The sensor enhances the tension of the spring;
- The spring raises the lever;
- The damper opens;
- Burning intensifies.
To reduce the intensity of the process, actions are performed in the reverse order.
There is a handle with a temperature scale on the regulator case. Thus, the required minimum value is set. The temperature will increase, but will never drop below the set level.
One.2 functions of the traction regulator
The main task will become clear if you look at the name of the device. If you do not adjust the temperature of the coolant (water shirt), it will simply boil. Without an automatic regulator, you will either have to constantly add the liquid, or manually control the flow of the air entering the furnace.
The traction regulator largely facilitates the life of the owners of a private house. In addition to the controlling, it performs two more useful functions:
- Installation and maintenance of the maximum permissible water temperature without boiling (up to 90 ° C; especially this is relevant in autumn or early spring);
- Fuel saving (when closing the damper, the intensity (speed of firewood) of firewood is reduced (though by reducing the boiler efficiency)).
Installation of a traction regulator on a solid fuel boiler involves certain costs. In order to save money, some use a safety valve for similar purposes. For some reason, he is considered an analogue of the regulator.
The solution is not the most rational, since after 3-4 triggers (the boiler is turned off at the risk of overheating and repeated activation during excessive cooling) the accessory begins to flow.
One.3 Advantages and disadvantages of traction regulators
These devices have both advantages and disadvantages.
- Low price for devices. Their cost depends on the manufacturer and model.
- Mechanical traction regulator for solid.Fuel boilers. The tracto.Regulator operates autonomously, regardless of electricity.
- Fuel for it is affordable.
- It works long and high quality.
If it is planned to purchase a solid fuel unit, then after connecting to the heating system, the question will certainly be how to configure the traction regulator for solid fuel boilers correctly, since this affects the efficiency and fuel consumption. It is better to entrust this to a specialist.
Advantages of the device
The main advantages of the traction regulator are:
- Acceptable price (however, depending on the manufacturer);
- Autonomy of work;
- Fuel availability;
- Simplicity of mastering the instructions by the new user;
- High quality work.
One.4 Description of traction force
This parameter depends on many factors, among them:
All this can affect the work of the device, so specific conditions must be considered individually. Another parameter that can slip away from the attention of consumers, but has a great influence on the strength of traction, this is the type of equipment. When using a gas device, the strength of the traction can change slightly, the final value is stable. This is due to the fact that smoke gases have almost the same temperature.
One.5 Technical parameters
When choosing a thermostat for the boiler, you need to know several technical parameters that characterize these automation tools:
- The water temperature range in which the therm element can work.
- The working stroke of the chain drive lever in mm, it must be compared with the movement of the ascelor door from the full closure to the maximum opening. The working stroke of the regulator drive should be enough to completely open the damper, otherwise the boiler may not gain its thermal power.
- The maximum weight of the door with which the regulator can work. If the air damper of your heat generator weighs more than can pull the chain drive, then such a product will not work for you, you should look for a model with a great effort to rise. It is also worth checking whether the weight of the drive itself is included in the lifting force or it must be calculated separately.
- The maximum temperature of the coolant.
- Diameter (in inches) of the threaded attachment of the seat.
What is traction regulator and why it is needed?
Typically, traction regulators are installed in solid fuel boilers. To do this, in the “shirt” of their heat exchanger there are a special openings for installing the traction regulator. The very design of this device is quite simple. In addition to the burning, in the body of the traction regulator there is a rod and a small immersed sleeve with gas.
With a change in the temperature of the coolant, the gas expands or vice versa, and the sleeve pushes or pushes the rod to which the lever is attached. Rising or dropping down, a lever with a chain, automatically adjusts the thrust, blown the door to open or closing the door.
The operating temperature range of the traction regulator is located around 30-90ºС, which allows you to effectively control the process of the furnace, boiler or furnace.
Principle of operation
Traction adjustment is carried out by a change in the degree of gases vacuum in the pipe. For this purpose, between the chimney from the furnace and the entrance to the chimney, the stabilizer is built. It can work in manual or automatic mode.
The chimney traction regulator is a damper (valve) built into a separate case. With increased thrust, the valve is opened and launches a portion of air from the room. The stream of gases is cooled, the lifting force from the thermal component decreases, the emission rate drops. And, on the contrary, with the closing of the valve, the flow of cold air decreases, the output strength increases.
Note! That is, with a valve closed, the maximum yield of combustion products is provided. Completely open damper. Minimum gas flow.
The traction stabilizer is advisable to install on solid.Fuel boilers working:
This is due to the presence of the time in which the boiler reaches planned power and, accordingly, a stable mode of operation. That is, the stove should melt.
Tips for choosing a device
Specialized stores have a huge selection of solid fuel boilers. And, oddly enough, even today you can find models without automation. Most of these “ancient” devices are equipped only with a sleeve mounted inside the heat exchanger. Installation of a traction regulator on a solid fuel boiler of this type is required. This will prevent an increase in temperature to critical and make the design safer.
In this regard, it is necessary to pay attention to the presence in the design of the sleeve and the damper that rises up.
When choosing a mechanized traction controller, you need to adhere to the following recommendations:
- The power of the thermostat must correspond to the weight of the sash for its successful rise;
- The ability to regulate temperature is best chosen in the range from 60 to 90 ° C;
- The angle of rotation of the lever should be enough for the full opening and closing of the sash;
- The thread in the boiler should correspond to the thread of the traction regulator in order to freely fasten two parts together.
When choosing a regulator, you should also pay attention to the position in which it can work, since the sleeve can be located on the side or from above. There are models that can work in any position.
How to choose automatic for a solid fuel boiler
The use of automation is the best solution to the issue of automation of the combustion process in a solid fuel boiler. The correct choice of control equipment will ensure uninterrupted operation of the heat generator and prevent overheating of the coolant.
Manufacturers of heating equipment recommend installing a mechanical or electronic traction regulator on all boilers with a capacity of more than 15 kW. Savings of fuel consumption with the correct selection of automation will be 15-20%.
Automation manufacturers for TT boilers
Automation for TT boilers make several foreign and domestic manufacturers. Popular, Russian consumer, the following brands and models of regulatory equipment are considered.
ATOS is an Italian company that makes automation for solid fuel boilers. The main Accent is made in the production of fully automatic systems.Under the ATOS brand, equipment for boilers with automatic and manual fuel loading is produced. Electro hydraulics is designed for installation in systems from 15 kW.
Automation for TT boiler
The cost of automation for solid fuel boilers is affected by several factors:
Country Manufacturer-Auto Auto Auto Automation Set of Air Plugs, made in Ukraine, Air Auto, will cost 6-8 thousand. For the Polish analogue Tech, you will have to lay out about 10,000
High.Quality automation of European manufacturers allows you to reduce heating costs and extend the boiler operating time from one bookmark. The cost of a thermostat pays off for 2-3 heating seasons.
How to choose a mechanical traction control for solid fuel boilers
In order for solid fuel to light up and continues to burn (whether it be firewood, woodworking, coal or then), oxygen must be served in the furnace chamber. To obtain the desired temperature of the coolant in solid fuel boilers, more and more complex automation is used using fans and smoke exhausters. However, there is a compact mechanical device. A traction regulator that with quite acceptable accuracy supports a given temperature in the heating system without using electricity.
The principle of operation and the functions of traction regulators for solid fuel boilers
The control of the boiler damper or the door blew the stove by the operator (stoker) changed the amount of oxygen in the furnace and changed the temperature of the coolant in one direction or another (due to more or less intense combustion). The principle of operation of a mechanical device capable of performing this work is also quite simple.
This is how the standard mechanical tag control regulator looks like. There are also side models.
Such a thermostat consists of the following details:
- A sleeve with a thermal.Sensitive element;
- Mechanical temperature change amplifier;
- Calibrated handle setting temperature;
- A spring, the compression of which will determine the level of task;
- A lever with a chain controls the ash door (blown).
Installation of the temperature of the coolant is set by the handle of the regulator, which compresses the spring with the right force. The difference between it and the power of the cold thermal.Sensitive element is large, so the lever mechanism opens the shutter to a certain large angle. A lot of air enters the furnace, intensive burning occurs. As heated, the linear dimensions of the sensitive element increase, the difference in a given and operating temperature becomes equal to zero. The ash door, smoothly dropping, occupies a position corresponding to a given one and further responds to the deviation of the temperature.
The function of the traction regulator includes the following tasks:
- Stable maintenance of a given temperature of the coolant in the regulation range, avoiding its boiling;
- The control of the power and efficiency of the boiler by supplying oxygen, achieving complete fuel burning, which reduces its consumption.
Important. Not all solid fuel units are equipped with a mechanical traction regulator initially, so the user has a temptation to use a safety valve as a traction regulator that drops excess pressure when boiling the coolant. Such savings will result in the fact that if a real emergency arises, it will work late or will not work at all, which will entail serious repair at least.
Reviews about the use of mechanical traction regulators: Advantages and disadvantages
Owners of solid fuel boilers respond to the installation of various manufacturers approving and recognize its usefulness in creating comfortable conditions in a private country house.
Table 1. Advantages and disadvantages of mechanical thermostat of solid fuel boilers.
|Low cost for the comfort||The declared characteristics are fully performed under the instruction, the deficiencies have not been identified.|
|Full independence from power supply, complex electronics and automation|
|Accessibility for understanding the installation and use of devices for unprepared consumers|
|With proper installation and operation, it lasts a long time|
|In view of the simplicity of the design, usually high quality manufacturing|
If the boiler is not included in the traction regulator, then when buying separately it is necessary to choose from the recommended for this unit. However, the only negative point is that not all solid.Fuel boilers are equipped with a threaded nest necessary for using a thermostat.
This is how the seat of the side thermoregulator of the thrust looks like this.
How to choose a suitable mechanism
The possibility of installing a mechanical thermoregulator indicates the presence of a welded sleeve into the body of the boiler on the side, front or on top, in addition, the ash door should be opened upward. For units in which the door blower opens to the side of the still there are still serial regulators. The space around the case should allow to freely mount and adjust the operation of the device.
The selected device must meet the following requirements:
- The internal thread of the sleeve determines the outer thread of the regulator.
- The design and power of the lever mechanism should allow to unimped completely lift and lower the blower door, so look at what effort the mechanism is calculated and compare it with the weight of the door blown.
- Most regulators work reliably in the range of 60 °.90 ° C.
The choice of the model and brand of the device depends on the preferences of the user and the budget for the purchase. As experience shows, it is enough to take any of the well.Known thermostats, they are all quite accurate, high.Quality and reliable (in view of the simplicity of the design as a whole).
The best well.Known manufacturers and models: characteristics and prices
The market for solid fuel boilers is saturated with a large number of more complex systems of automatic control of the processes of heat and DOS. They are more accurate, do not require the participation of the user in most operations. However, such systems are becoming increasingly dependent on electricity and more and more expensive to acquire and maintain. Autonomy, simplicity, quality of modern thermostats and low price make them quite in demand and competitive.
ESBE ATA 212
One of the best traction regulators for a solid fuel boiler from a well.Known Swedish manufacturer. It works reliably in the range of 35 No. 95 ° C, operating temperatures from –20 ° C to 150 ° C. Can be used with various antifreeze, allows the replacement of the thermostatic element. When used in low.Temperature media, he needs heating. Installed in any position, does not need the service. It is inserted into a sleeve with a pipe thread 3/4 inches. Weight 0.38 kg.
Installation of automation & control system in boiler
Why install a fan on a boiler?
The installation of the fan on the boiler is performed to create forced traction. Thanks to such modernization of equipment, the necessary volume of air will be continuously supplied to the fuel burning chamber.
In practice, it has repeatedly proved that for the most efficient operation of the boiler, more air should be supplied to the burning chamber than indicated by the manufacturer in related technical documentation. Without a fan, the fuel will not have time to completely mix with all oxygen. As a result, a certain part of the air will not burn, but simply blown out of the heating unit along with the smoke.
Thus, when calculating the required power of the fan, you need to focus on the maximum utility coefficient indicated by the manufacturer of the boiler. If the power of additional equipment is lower than the required value, modernization will simply not give any useful effect.
In conditions of insufficient amount of air, the operating mode of the boiler will be violated. The fuel will not burn completely, the chimney will begin to intensively clog with ash and soot, which will lead to frequent stops of the equipment for cleaning and related maintenance.
In conditions of incomplete combustion of fuel, insulation materials will begin to burn out, and their frequent replacement will lead to a significant increase in the cost of operation of the heating unit.
Due to the reduction of traction, the boiler room will smoke. In view of this, the owner will need to spend additional funds for the installation of artificial ventilation.
Therefore, it is better to initially allocate a relatively small amount of money for the purchase of a fan, and you can install this unit with your own hands. Such an addition will significantly reduce fuel deficiency, increase the capacity of heating equipment and significantly extend its service life without the need to stop the repair and maintenance.
Solid fuel boilers. Unlike devices on other types of fuel, more difficult to control, since they have high inertia. As a result of this, excessive heat may be released. To regulate the combustion intensity of fuel, use the traction regulator. In this article, the master plumber will tell how the traction regulator for a solid fuel boiler works.
The main role in the device of the regulator is played by the thermostatic element placed inside the cylindrical case and connected mechanically with the lever and chain attached to the ash. The element is a hermetic flask filled with thermal sensitive liquid, which is significantly expanding when heated. It is located at that end of the case, which is screwed into the boiler water shirt and directly contacts the coolant. How the thermostat with a chain drive works is shown in the diagram:
The principle of operation of the automatic traction regulator is based on the control of the air flow that goes to the fuel under the influence of the chimney thrust. The algorithm looks like this:
- When burning solid fuel and heating the coolant, the fluid inside the element expands and affects the executive mechanism and lever, overcoming the force of the elasticity of the spring.
- The lever weakens the chain, the damper begins to close and reduce the passing section. Less air enters the furnace, the combustion process slows down.
- The temperature of the water in the boiler tank decreases, the liquid is compressed and the return spring makes the lever open the damper again by means of a chain.
- The cycle is repeated until the firewood in the fuel is completely burned out, then the spring opens the door as wide as possible.
The setting handle at the end of the thermostat serves to limit the leverage and, accordingly, the air damper. Thus, a restriction on the temperature of the coolant is established.
In addition to mechanical regulators that are independent of electricity, there is automation for solid fuel boilers with a controller and a fan. An air injection. The latter supplies air to the furnace at the command of the electronic unit. Temperature sensor. Such automation sets are placed on all pyrolysis and pellet boilers.
Unlike any wood stove, a water heat.Fuel boiler is equipped with a water shirt and cannot warm up to too high temperature, otherwise the water will simply boil in it. In such cases, the resulting pairs sharply increases the pressure in the system, which is why there is an explosion. That is, a solid fuel boiler, whose power is manually regulated by a ash.Free door, is source of increased danger.
The very bottom of the boiler without any automation can work together with a buffer capacity-heat accumulator. Whose volume is calculated correctly. Excess heat will go there if you did not cover the door in time and did not limit the flow of air into the furnace.