Diesel heat generators: types, characteristics, purpose. Heat generators for air heating

Generating heat energy equipment is usually associated with the engineering of residential buildings - multi-family or private. But even in industry, enterprises are not always limited to using the main networks that provide working areas with heat. Often the use of directional radiation, which is realized with the help of so-called thermal guns, is required. There are various variations of such installations, among which are diesel ones. Such models are also used in construction, agriculture, in the content of individual structures and technical devices. Modern diesel heat generators also have different modifications, different nuances in the working process, design and operational capabilities.

Purpose of diesel heat generators

The heat gun of this type can be attributed to the representatives of the group of autonomous liquid-fuel heating means. Their autonomy is due to the lack of binding to the backbone networks, but it is important to take into account the dependence of technology on the power grid. These are heat generators for air heating, which are more often used in equipping factory complexes, in factories and mills, and in servicing various technical premises.

The task of installation is elementary and consists in the propagation of thermal radiation. Another thing is that the energy is characterized by a purposeful movement in the stream, although this feature does not always matter during operation. It's one thing if you want to provide heating for a particular industrial plant, a structure or equipment, and the other - if it is a question of the spread of heat throughout the area of the workshop or work site. Another feature that distinguishes diesel heat generators is their high power. Combustion of fuel allows the heating of the target object in the shortest time intervals.

The device and the principle of operation

A typical device of liquid-fuel heat generators provides for the presence of a combustion chamber, a fuel tank, a fan and a burner in the design. This set of functional components ensures the efficiency of the generator, but also for ease of use, manufacturers endow equipment with other devices. In particular, many of the modern models are supplied with a transportation base with wheels. Particular attention is paid to the means of control and management. For example, heat generators for air heating can be supplied with a whole group of measuring instruments. These include a thermostat with a timer and an electronic flame control system.

Now we should consider the principle of the heat gun. With the help of a compressor plant, the fuel from the fuel tank is directed to the nozzle that sprays it inside the combustion chamber. Then the air is heated, which is blown out by the fan in the desired direction. Some features, in principle, have cavitation heat generators, the function of which involves mechanical generation of energy. In the process of servicing liquid fuel such units form bubbles, the movement of which causes an increase in the energy potential.

Types of aggregate

There are heat guns of two types - with direct and indirect action. The first category includes units that are equipped with an open combustion chamber. During the operation of the plant, waste products in the form of gas mixtures are discharged into the room. Accordingly, such equipment can not be used in residential buildings and premises where a long-term presence of people is assumed. In addition, in the room thus serviced, effective ventilation must be provided. In turn, the indirect heating diesel generator allows operation in residential premises in some versions and does not require special conditions in terms of ventilation. Its combustion chamber is interfaced with a branch pipe, which functions as a chimney. That is, the garbage goes not into the room, but directly to the street.

Specifications

Performance and overall efficiency of heat guns are determined by several characteristics. The main one is the power during heating, which in the case of models of indirect action can reach 85 kW. Units with direct action have a higher potential - about 100 kW. However, standard modifications usually work with a power in the range of 20-40 kW. As for the power consumption of the fan, it averages 150-200 W. The volume of the tank also matters. Its capacity determines how many diesel heat generators will support autonomous operation. Usually this figure is in the range of 15-25 liters. The fuel consumption varies from 1 to 2 l / h.

Additional equipment

For ease of operation, manufacturers of such units include a set of carts with wheels that allow the transportation of equipment. Unlike models with a chassis integrated in the design, this solution simplifies installation activities by detaching the carrier platform. Advanced models also provide for the presence of stabilizers, flame control systems and protective devices against overheating. In terms of control, diesel heat generators are equipped with electronic ignition and functional thermostats. Since the practice of operating thermal guns at certain time intervals is common, the presence of an automatic control relay has also become mandatory for units representing the middle segment.

Installation and nuances of operation

Heat guns are installed on a stable flat surface in a room where heating is planned. The remoteness of the equipment from flammable objects should be at least 3 m. If it is an aggregate with an indirect combustion product outlet, the chimney must be considered in advance. Relevant connections are included. Further, the possibility of power supply is tested. So, if household models in almost any design are supplied from the 220 V power grid, the industrial heat generator can require power from the 380 V line. This is usually a three-phase equipment that is installed in the production facilities. Direct start is carried out via the control relay. The maximum power can take several minutes - it depends on the model used and its power capacity.

Famous manufacturers

The production of thermal guns is also being carried out by the developers of industrial equipment, and companies specializing in climate technology. Class of household models are represented by such companies as Ballu, NeoClima, Daewoo, Elitech, etc. Efficient cavitation heat generators for industrial use mainly come out under the brands FUBAG, Hitachi, Master and Wacker Neuson. From the Russian manufacturers it is necessary to allocate companies Prorab and "Caliber". Domestic generators can not compete with imported analogs for all parameters of operation, but they are cheaper and still show a good level of reliability.

How much does a diesel heat generator cost?

Technology is very diverse in value, and price tags depend on a variety of operating parameters. For example, a heat generator, whose price is within 10 thousand rubles, has a low power rating and a small tank volume. In addition, such units are rarely provided with multifunction control relays.

The higher segment already provides not only enhanced performance, but also the presence of modern technologies. As an illustration, we can mention the diesel generator Master B 100 CED, which is provided by the flame control system with a photocell. Aggregates of this type cost about 30 thousand.

How to choose the right heat gun?

The choice of a heat gun primarily depends on the target heating area and the design capabilities of the equipment installation. As for the first criterion, the power, the volume of the diesel tank and the capacity are selected for it. But not every suitable for the operational parameters of the generator can be installed in the room for which it was selected. It is important to consider the principle of action. For example, a diesel generator with direct heating is suitable for a production plant, and models with combustion products to the street can be used in residential premises.

Consumables for a heat gun

And household appliances from the category of municipal engineering, and industrial equipment increasingly depend on the quality of consumables used. In the case of heat generators, they can be divided into structural accessories and fuel. The first group includes filters, hoses and accessories that form the working infrastructure of machinery. In turn, fuel for heat generators can be represented by both kerosene and diesel. Kerosene is good because it is practically insensitive to ambient temperatures. If diesel is planned to be used in low-temperature conditions, it is important to prepare initially for the use of appropriate additives in its composition, for example anti-gel additives.

Conclusion

In addition to diesel thermal guns, there are other types of this equipment. For example, gas and electric models. Apart from operational nuances, the main difference between these variations is cost. When buying, it is important to consider how economical the heat generator will be. The price of the equipment itself, which varies on average from 10 to 30-40 thousand, can easily pay off when moving from the main main heat sources. The most economical are the gas models, but they are also the most insecure. Electricity makes the installation flexible in use, safe and highly efficient. But such units are just the most demanding in terms of energy costs. Diesel the same heat generator is something average in terms of economy, which determined its popularity.