A heater is a duct heater, the purpose of which is, in most cases, to heat the air in the air ventilation system to the required temperature. Note that heaters differ in their design. Thus, it is necessary to clearly understand not only the device itself, but also the entire system before purchasing.
On the website http://baset.ru/oborudovanie/izgotovlenie_oborudovaniya_dlya_teplovoy_energetiki/energeticheskie_kaloriferyi you can find air heaters on the most favorable terms. The article below will describe the main criteria for choosing equipment.
First of all, it is necessary to understand that the main functioning of the heater must be the energy environment. The most common types of air heaters are:
- electrical;
- water;
- duct.
Indeed, electric models are the most common. The point is that they have a large number benefits. Unlike water heaters, electric ones do not have a coolant.
The main source of heat in them are shades. Consequently, the installation of such a heater and further maintenance turns out to be several times less expensive in terms of money.
We also note that maintenance of electric heaters can easily be carried out by a non-professional in the field of ventilation systems. With the water analogue everything is somewhat more complicated. The water tubes are arranged vertically and installed perpendicular to the air flow.
The indicated arrangement of the tubes is not accidental. The fact is that in this case, water bubbles accumulate in the upper part of the device, from where they are removed using special taps.
Let us remind you that the air ducts of ventilation systems can be made either round or rectangular. Insofar as heaters are built directly into the system, they must repeat its configuration.
Note that the cost of air heaters does not particularly depend on the form factor. The main criterion for pricing is the power of the heaters, which demonstrates the efficiency of the system.
Of course, the choice of air heater is always made for a specific system.
The video demonstrates an ordinary electric heater:
Heaters are classified according to the type of coolant:- water, - steam
Based on the type of surface, steam and water heaters are distinguished: -smooth tubular, - ribbed.
According to the nature of the coolant movement, heaters are divided into: - single-pass, - multi-pass.
Based on the number of rows of pipes, heaters are divided into two models: -medium (C) with three rows of pipes, -large (B) with four rows of pipes.
Heater: purpose and classification.
Heater- one of the most important elements climate control equipment, providing the required temperature parameters in the premises for various purposes. It is the function of these devices that includes heating the air in heating, ventilation and air conditioning systems, and it is on their performance that the comfort of staying in the building and the premises of this building fully depends. Heater, due to its high performance, is widely used for heating rooms with significant internal volumes? office centers, shopping and warehouses, sports and entertainment complexes, stations maintenance, garages and production workshops. Portability, which many models have air heaters, allow them to be used in construction for heating enclosed spaces that are under construction or repair. The active use of these devices during construction work is also explained by the fact that the classic heater is a device with small in size and weight, easy to operate and unpretentious in operation. The high performance it has heater, is explained by its ability to create a large temperature difference (70 - 110 degrees), which also makes it possible to use it in systems supply ventilation. In such cases heater successfully copes with its functions even at air temperatures outside the room reaching values of -25 degrees. The versatility it has heater, also lies in the fact that in the warm season it can be used as a high-performance fan to ensure air circulation in ventilated rooms. It should be noted that heater as an element of a ventilation and heating system, it can operate at air temperatures outside the premises, the value of which varies from - 25 to + 40 degrees, and humidity ranges from 25 to 98%. The high performance of such a device allows it to be used to equip drying chambers. In such cases, the most common coolants entering the heater, are hot water or superheated steam, the temperature of which can be 180 - 190 degrees, and the operating pressure can reach 1.2 MPa.
Heater- this is a fairly simple technical device, it consists of elements that transfer heat to passing air, tube sheets, covers equipped with pipes for supplying and discharging coolant, as well as side shields covering its body.
The main classifying parameter air heaters is the type of coolant that is used in it. So, depending on this criterion , heater can be water - KSk, which uses hot water as a coolant, or steam - KPSk, which uses superheated dry steam.
Heater, in addition, may have different kind heat-transferring surface, depending on which it can be smooth-tubular or ribbed. Designs in which special fins are applied to the pipes, thanks to larger area heat transfer surface are more efficient than devices with smooth surfaces.
Another parameter by which they are classified air heaters, is their design. Thus, there are spiral-knurled structures, bimetallic ones, connected to the coolant system by welding or special flanges and bolted connections.
Classification of air heaters depending on their internal design.
Movement of the coolant inside air heater can be organized according to two basic principles, which is ensured by the design of this device. Mermen air heaters KSk are multi-pass devices. The movement of hot water in such devices passes through special collectors with partitions. The partitions are installed in a transverse plane, which allows the movement of hot water in the collectors to be consistent. Use of such constructive solutions allows you to give the coolant movement a high speed, which directly affects the increase in heat transfer intensity. Multi-pass devices, due to their properties, are more efficient than single-pass designs. As a rule, multi-pass devices are installed in systems with a horizontal arrangement of heat-transfer elements.
Steam heater KPSK is a single-pass device installed in systems with vertical arrangement of heat-transfer elements. Devices with this principle of coolant passage have pipes on both sides that provide its inlet and outlet. Coolant from distribution box enters simultaneously into all tubes of a single-pass device and passes through them only once, giving off its heat to the passing air flow along the way.
Heater, depending on the power, may contain different number rows of pipes in its design. Thus, there are medium devices containing three rows of pipes, and large ones air heaters, the design of which contains four rows of pipes.
A separate category consists of the so-called electric air heaters, the design of which is equipped with a special electric heater. Such devices, which have small overall dimensions and weight, are completely autonomous, they do not require a centralized network of hot water or steam and only require an electrical power supply. The biggest disadvantage of such devices, which significantly limits their use, is their low power, which allows them to be used only for small rooms. In addition, such devices consume quite a lot large number electrical energy what's in in some cases can be very critical.
Advantages of using water heaters.
Water heater, using hot water as a coolant, is one of the most effective devices of this kind, allowing you to heat rooms large size in a relatively short period of time. What is important is that a small amount of electricity is consumed, which makes such a device also very economical. Such heater, depending on its design, can work on the principle of closed air circulation or take it from the outside. As a rule, closed systems are used in cases where people are constantly in a heated room. The second type of such devices can be used to heat any premises: warehouses, hangars for various purposes, basements, etc.
Water heater, in addition to being economical, it also has high safety. Today, such devices, with various capacities, are successfully used for heating warehouse and shopping complexes, production premises, gyms, service stations, garages, greenhouse farms and livestock farms. Even with small power and overall dimensions, such a device, thanks to its high performance, is capable of heating large rooms. So, for example, by installing this heater at the top point of the room and directing the flow warm air down, you can effectively eliminate the temperature gradient and ensure uniform heating of the air throughout the entire volume. If necessary, you can create entire heating systems made up of several such devices, each of which is equipped with a thermostat responsible for turning them on and off. The creation of such systems, composed of several water devices connected in series, can significantly reduce the cost of heating rooms characterized by a large volume.
What is important, water heater connects to the existing heating system of buildings, which does not require the creation special conditions and additional financial costs for its installation and launch. The electricity that such a device necessarily needs is not spent on heating, but only on ensuring the operation of the fan, which consumes it in very small quantities.
High efficiency water air heaters, their ability to provide rapid heating of air in heated rooms is achieved due to the following factors:
Using hot water from the system as a coolant central heating buildings, which usually have a fairly high temperature;
The use of tubular finned heat exchangers in the design of such devices allows for efficient heat exchange between hot water and passing air;
The presence in the design of such devices are fans that effectively mix the air, making it as uniform as possible in its temperature parameters;
The use of such air heaters special blinds with adjustable shutters, with the help of which you can direct heated air exactly to that part of the room where it is most needed at the moment time.
Heaters are special devices, which heat the air and can be used as fans during warm periods.
The heater interacts - heat exchange - through the grille between two media. It includes heat dissipation elements, side shields, tube sheets, and covers.
Types of heaters
The heat carriers in the heater are water, electric and steam, depending on this there is a classification of devices.
Water and steam heaters able to withstand large temperature ranges. There is a lot in common between them - the difference, in particular, is that one of the types of devices uses steam, which is a special state of aggregation water.
Using water and steam heaters, you can easily achieve the desired air temperature, but they should only be purchased if there is an additional source of heating the room, otherwise you will have to additionally install the appropriate equipment.
And if there is neither a boiler nor a boiler, you can purchase an electric heater. The advantage is that the loss of its coolant is almost negligible. However, especially economical buyers will not be satisfied with this type of device, since consumers are often afraid of possible energy costs.
An electric heater burns oxygen in the air, which is not very good, since the air becomes dry, but some modern device manufacturers have solved this problem by equipping the devices with special humidifying devices.
Thus, we can conclude that it is more reasonable to install electric heaters in small spaces, but in rooms of more than a hundred square meters It is better to install water-based devices.
And also...
There are three types of air heaters, each with its own characteristics.
Spiral knurling devices are the best due to good contact between aluminum and steel pipes, and the ribs are formed in them by rolling an aluminum pipe. They use the interaction properties of aluminum and steel. This contact does not form in plate and spiral-wound heaters. In plate devices, ribs are mounted on tubes, and in spiral-wound devices, a steel tape is used to carry out the winding. Also, in terms of aerodynamic parameters, spiral-rolling devices have no equal.
It can also be mentioned that the plate one, in turn, is better than the spiral-wound one in that it is designed in such a way that the air movement encounters less resistance than in the spiral-wound one. Plate heaters with oval tubes are more popular than other types of plate heaters.
Heater Heater is a device for heating air in a room, consisting of pipes through which hot water, steam or hot air circulates.
a device for heating the air passing through it in systems air heating, ventilation, air conditioning and dryers
(Bulgarian language; Български) - heater
(Czech language; Čeština) - ohřívač vzduchu
(German; Deutsch) - Lufterhitzer; Kalorifer
(Hungarian; Magyar) - calorifer; legfűtőtest
(Mongolian) - heater
(Polish language; Polska) - nagrzewnica
(Romanian language; Român) - calorifer
(Serbo-Croatian language; Srpski jezik; Hrvatski jezik) - calorifer
(Spanish; Español) - calorifero
(English language; English) - heating coil; air heater
(French; Français)
- réchauffeur d'air; calorifère
Construction dictionary.
Synonyms:See what “Kalorifer” is in other dictionaries:
1) a device for heating with hot air; 2) a special stove device for heating large rear areas; heats the room with hot air passing from it through pipes in all directions. Complete dictionary foreign words, which came into use in... Dictionary of foreign words of the Russian language
HEATER, heater, man. (from lat. calor heat and fero I carry) (tech.). 1. A device for introducing some amount of heat somewhere. 2. A device for heating a room with heated air, consisting of a stove and a system of pipes distributing through ... Dictionary Ushakova
Heat exchanger, air heater, heat heater, heater, radiola Dictionary of Russian synonyms. heater noun, number of synonyms: 8 air heater (8) ... Dictionary of synonyms
heater- a, m. calorifère m. A device consisting of a furnace and a system of pipes and used to heat a room with heated air, hot water or steam. BAS 1. There in England there are excellently designed heating units (caloriphères), they warm the stairs, canopy,... ... Historical Dictionary of Gallicisms of the Russian Language
heater- A device for heating the air passing through it in air heating, ventilation, air conditioning systems and dryers [ Terminological dictionary on construction in 12 languages (VNIIIS Gosstroy USSR)] heater Device for... ... Technical Translator's Guide
- (from Latin calor heat and fero I carry) heat exchanger (plate, smooth pipes, etc.) for heating air in air heating systems, ventilation and dryers... Big Encyclopedic Dictionary
HEATER, huh, husband. A device for heating air: a system of smooth or plate pipes through which hot water, steam or heated air flows. | adj. heater, oh, oh. Ozhegov's explanatory dictionary. S.I. Ozhegov, N.Yu. Shvedova. 1949 1992 … Ozhegov's Explanatory Dictionary
- (Calorifer, air heater) a device for heating air, used for heating, ventilation and drying. Samoilov K.I. Marine dictionary. M.L.: State Naval Publishing House of the NKVMF of the USSR, 1941 ... Marine Dictionary
Heater- - a device for heating air in a room, consisting of pipes through which hot water, steam or hot air circulates... Builder's Dictionary
heater- calorifer, air heater *Heizapparat, Heizkörper, Kalorifer heat exchanger (plates, from smooth pipes, etc.), in which the air is heated by heat transfer through the surface, which separates them. Suitable for heating the surface in systems... ... Girnichy encyclopedic dictionary
