Heat generating 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 requires the use of directional radiation, which is implemented using the so-called heat guns. There are different variations of such installations, including diesel ones. Such models are also used in construction, agriculture, in the maintenance of individual structures and technical devices. Modern diesel heat generators also have different modifications, differing in nuances in the working process, designs and operational capabilities.
Assignment 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 connection to the main networks, however, it is important to take into account the dependence of equipment on the power grid. These are heat generators for air heating, which are more often used in equipping factorycomplexes, in factories and combines, as well as in the maintenance of various technical premises.
The installation task is elementary and consists in the propagation of thermal radiation. Another thing is that energy is characterized by purposeful movement in a stream, although this feature is not always important during operation. It is one thing if it is required to provide heating for a specific industrial station, structure or equipment, and another when it comes to distributing heat over the entire area of a 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.
Design and principle of operation
A typical device of liquid fuel heat generators provides for the presence of a combustion chamber, fuel tank, fan and burner in the design. This set of functional components ensures the operability of the generator, but also, for ease of operation, manufacturers endow the equipment with other devices. In particular, many of the modern models are equipped with a transport base with wheels. Special attention is paid to the means of control and management. For example, heat generators for air heating can be equipped 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 operation of the heat gun. With the help of a compressorinstallation, the fuel from the fuel tank is sent to the nozzle, spraying it inside the combustion chamber. Next, the air is heated, which is blown out by the fan in the right direction. Some features in the principle of operation have cavitation heat generators, the function of which involves the mechanical generation of energy. In the process of servicing liquid fuels, 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 plant, 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 long-term presence of people is expected. In addition, the room thus served must be provided with effective ventilation. In turn, an indirectly heated diesel heat generator in some versions allows operation in residential premises and does not require special conditions in terms of ventilation. Its combustion chamber is connected to a branch pipe, which performs the function of a chimney. That is, the cinder goes not 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 the heating power, which inIn the case of models of indirect action, it can reach 85 kW. Direct acting units have a higher potential - about 100 kW. However, standard modifications usually operate with a power in the range of 20-40 kW. As for the power consumption of the fan, it averages 150-200 watts. The size of the tank also matters. Its capacity determines how long diesel heat generators will maintain 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 carts with wheels to transport equipment. Unlike models with an integrated undercarriage, this solution simplifies installation activities by detaching 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 the practice of operating heat guns at certain time intervals is widespread, the presence of an automatic control relay has also become mandatory for units representing the middle segment.
Installation and operating details
Heat guns are installed on a stable flat surface in the room where heating is planned. The distance of the equipment from flammable objects shouldbe at least 3 m. If we are talking about a unit with an indirect output of combustion products, then the arrangement of the chimney should also be considered in advance. Appropriate fittings are included. Next, the possibility of power supply is checked. So, if household models in almost any design are supplied from a 220 V mains, then an industrial heat generator may also require power from a 380 V line. Usually this is a three-phase equipment that is installed in factories. Direct start is carried out through the control relay. It may take several minutes to reach maximum power, depending on the model used and its power potential.
Famous Manufacturers
The production of heat guns is carried out by both industrial equipment developers and companies specializing in climate technology. The class of domestic models is represented by companies such as Ballu, NeoClima, Daewoo, Elitech, etc. Efficient 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 the companies Prorab and Caliber. Domestic generators can not compete with imported analogues in all operating parameters, but they are cheaper and still show a good level of reliability.
How much does a diesel heat generator cost?
Technique is very diverse in cost, and the price tags depend on many operating parameters. For example, heat generator, pricewhich is within 10 thousand rubles, has a low power rating and a small tank volume. In addition, such units are rarely provided with multifunctional control relays.
The higher segment already provides not only increased performance, but also the presence of modern technologies. As an illustration, we can cite the Master diesel heat generator in the B 100 CED version, which is provided by a flame control system with a photocell. Units 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, power, diesel tank volume and productivity are selected under it. But not every generator suitable for performance can be installed in the room for which it was selected. It is important to consider the principle of action. For example, a direct-heated diesel-fueled heat generator is suitable for a production workshop, while models with the output of combustion products to the street can be used in residential premises.
Consumables for heat gun
Both home appliances from the category of municipal engineering and industrial equipment are increasingly dependent on the quality of the consumables used. In the case of heat generators, they can be divided into structural accessories and fuel. The first group includes filters, hoses andaccessories that form the working infrastructure of 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, then it is important to initially prepare for the use of appropriate additives in its composition, such as anti-gel additives.
Conclusion
Besides 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 the 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 switching from the main main heat sources. Gas models are considered the most economical, but they are also the most unsafe. Electricity makes the plant flexible, safe and highly efficient. But such units are just the most demanding in terms of energy consumption. The diesel heat generator is something in between in terms of efficiency, which determined its popularity.
