Thermal energy generating equipment is usually associated with the engineering of residential buildings - multi-unit or private. But even in industry, enterprises are not always limited to the use of basic networks that provide working areas with heat. Often requires the use of directional radiation, which is realized using the so-called heat guns. There are various variations of such plants, including 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 various modifications, differing in nuances in the working process, designs and operational capabilities.
Purpose of diesel heat generators
A heat gun of this type can be attributed to representatives of the group of autonomous liquid fuel heating means. Their autonomy is due to the lack of binding to the backbone networks, however, it is important to take into account the dependence of equipment on the mains. These are heat generators for air heating, which are more often used in equipping factory complexes, in factories and plants, as well as in servicing various technical rooms.
The installation task is elementary and consists in the distribution of thermal radiation. Another thing is that energy is characterized by purposeful movement in the flow, although this feature is not always relevant during operation. It is one thing if it is necessary to provide heating for a particular industrial station, structure or equipment, and another - if it is a question of the distribution of heat throughout the entire area of the workshop or work site. Another feature that distinguishes diesel heat generators is their high power. Combustion of fuel allows heating the target object in the shortest time intervals.
Device and principle of operation
A typical device for liquid fuel heat generators provides for the design of a combustion chamber, fuel tank, fan and burner. This set of functional components ensures the operability of the generator, but for the convenience of use, manufacturers also provide equipment with other devices. In particular, many of the modern models are equipped with a transportation base with wheels. Special 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 it is worth considering the principle of the heat gun. Using a compressor installation, fuel from the fuel tank is directed to the nozzle spraying it inside the combustion chamber. Next, air is heated, which is blown by the fan in the right direction. Some features in principle of operation have cavitation heat generators, the function of which involves the mechanical generation of energy. In the process of servicing liquid fuel, such installations form bubbles, the movement of which causes an increase in the energy potential.
Varieties of the unit
There are two types of heat guns - with direct and indirect action. The first category includes units that are equipped with an open combustion chamber. During the operation of the installation, waste products in the form of gas mixtures are discharged into the room. Accordingly, such equipment cannot be operated in residential buildings and premises where a prolonged presence of people is assumed. In addition, in the room served in this way, effective ventilation should be provided. In turn, a diesel heat generator of indirect heating allows operation in residential premises in some versions and does not require special conditions in terms of ventilation. Its combustion chamber is associated with a pipe, which performs the function of a chimney. That is, the burner does not go out into the room, but directly into the street.
Specifications
The performance and overall efficiency of heat guns is determined by several characteristics. The main one is heating power, which in the case of indirect-acting models can reach 85 kW. Units with direct action have a higher potential - about 100 kW. However, standard modifications usually work with power in the range of 20-40 kW. As for the power consumption of the fan, it averages 150-200 watts. The tank volume also matters. Its capacity determines how much diesel heat generators will support autonomous operation. Usually this indicator is in the range of 15-25 liters. Fuel consumption varies from 1 to 2 l / h.
Additional equipment
For ease of use, manufacturers of such units include trolleys with wheels for transporting equipment. Unlike models with an integrated chassis, this solution simplifies installation activities by disconnecting the carrier platform. Advanced models also include stabilizers, flame control systems, and overheating protection. In terms of control, diesel heat generators are equipped with electronic ignition and functional thermostats. Since it is common practice to operate heat guns at certain time intervals, the presence of an automatic control relay has also become mandatory for units representing the middle segment.
Installation and operation details
Heat guns are installed on a stable, level surface in the room where the heating is planned. The distance of the equipment from flammable objects should be at least 3 m. If we are talking about a unit with an indirect output of combustion products, then the chimney arrangement should be thought out in advance. Corresponding nozzles are included. Next, the possibility of power supply is checked. So, if household models in almost any design are supplied from a 220 V power supply, then an industrial heat generator may require power from a 380 V line. Usually this is a three-phase equipment that is installed in factories. Direct start-up is via a control relay. It may take several minutes to get maximum power - it depends on the model used and its power potential.
Well-known manufacturers
The production of heat guns is also carried out by industrial equipment developers and companies specializing in climate technology. The class of household models is represented by such companies as Ballu, NeoClima, Daewoo, Elitech, etc. Effective cavitation heat generators for industrial use are mainly sold under the brands FUBAG, Hitachi, Master and Wacker Neuson. Of the Russian manufacturers, it is worth highlighting Prorab and Caliber. Domestic generators may not compete with imported analogues in all operating parameters, but they are cheaper and still show a good level of reliability.
How much is a diesel heat generator?
The equipment is very diverse in cost, and the price tags depend on many operating parameters. For example, a heat generator, the price of which is within 10 thousand rubles, has a low power indicator and a small tank volume. Moreover, such units are rarely provided with multifunctional control relays.
The higher segment already provides not only enhanced performance, but also the presence of modern technology. As an illustration, the Master diesel diesel generator B 100 CED can be used, which is provided by a flame adjustment system with a photocell. Units of this type cost about 30 thousand.
How to choose a suitable heat gun?
The choice of a heat gun primarily depends on the target heating area and the structural capabilities of the equipment installation. As for the first criterion, then it selects power, diesel tank volume and performance. But not every generator suitable for operational indicators can be installed in the room for which it was selected. It is important to consider the principle of action. So, a direct-heated diesel fuel heat generator is suitable for a production workshop, and models with the output of combustion products to the street can be used in residential premises.
Heat gun consumables
Both household appliances from the category of communal engineering and industrial equipment are increasingly dependent 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 the equipment. 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 you plan to use diesel at low temperatures, it is important to initially prepare for the use of appropriate additives in its composition, for example, anti-gel additives.
Conclusion
In addition to diesel heat guns, there are other types of this equipment. For example, gas and electric models. Apart from operational nuances, the fundamental 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 on average varies from 10 to 30-40 thousand, may well pay off when moving from the main heat sources. Gas models are considered the most economical, but they are also the most unsafe. Electricity makes the installation flexible to use, safe and highly efficient. But such units are precisely the most demanding in terms of energy consumption. The diesel heat generator, however, represents something in between in terms of economy, which determined its popularity.