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INVENTION
Patent of the Russian Federation RU2059167
ELECTROCONVECTOR
The name of the inventor: Alexander Dubensky
The name of the patent holder: Alexander Dubensky
Address for correspondence:
Date of commencement of the patent: 1993.08.15
Use: in air heaters for space heating. SUMMARY OF THE INVENTION: Within the housing 1, vertical tubular heating elements 3 are provided, which are hollow tubes with an internal diameter of at least 25 mm. The distance between the elements 3 and the body 1 is not less than the diameter of the pipe. Heating elements 3 are installed in the housing with the help of holder-clamps 4. To enhance heat exchange, the heating elements 3 can be provided with reflector jackets, the shape of which may be vertical or helical.
DESCRIPTION OF THE INVENTION
The invention relates to air heaters and can be used for space heating.
A number of household electric heaters with flat micaceous heating elements with a nichrome or other resistive coating are known, in which the heating elements are packed in blind metal envelopes, which are tightly adjacent to them [1]
A disadvantage of such heating devices is the considerable temperature (90-100 о С) on the surface of the case, which is unsafe for operation of such heaters because of the possibility of a burn and leads to a shortening of the service life of heating devices.
An electroconvector is known, comprising a housing with heating sections arranged therein in the form of longitudinal and transverse grids with ribbon heaters attached thereto [2]
The disadvantages of this convector are considerable metal consumption, the complexity of the design of heating elements, the presence of an open metal conductor that burns oxygen in the air.
A device with tubular electric heating elements mounted vertically is known in which the outer and inner chambers are connected together by annular channels arranged around tubular electric heating elements [3]
The disadvantages of this device are the considerable complexity of the design of the lower and upper chambers, the weak convection of the heat flow due to the fact that the air flow on the way to the exit overcomes the thermal curtain, which reduces the heat sink and leads to an additional consumption of electricity. The accumulation of heated air in the upper part of the tubular heating elements contributes to their overheating and shortening of their service life.
The aim of the invention is to simplify the design of the heating device, to increase economic efficiency, safety, convenience and reliability in operation by intensifying the natural convection of the heat flow.
The object is achieved by the fact that the electric convector comprises a housing with openings and vertical heating elements disposed therein with a clearance relative to the walls and from each other in the form of hollow tubes having an internal diameter of at least 25 mm.
The distance between the heating elements and the housing is not less than the diameter of the hollow tube-heating elements.
Tubular heating elements in the housing can be arranged in one or more rows.
The heating elements in the housing can be staggered.
Tubular heating elements are installed in the housing with the help of holder-clamps, for example spring ones.
In order to enhance heat transfer, the tubular heating elements are provided with tin shirts with reflective elements.
For the sake of convenience in operation, in order to create an optimal thermal regime, the electric convector is configured to include one or more heating elements.
For the purpose of safety and reliability during operation, the tubular heating elements of the electric convector are made of mica plastic, they can not be made of other materials (ceramics, etc.).
The proposed design of the electric heater of air provides a strong circulation of air around the heating elements, a good heat dissipation at low energy costs, prevents the heater housing from overheating due to the lack of direct contact with the heating elements, and increases the service life of the heating elements.
The absence of open conductive elements eliminates the combustion of air oxygen, ensures the full reliability and safety of the device during operation.
The possibility of the use of cases of various shapes, designed to meet the requirements of modern design, compactness and light weight of convectors allow creating on the basis of the invention products combining utilitarian and aesthetic functions.
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In Fig. 1 depicts one of the possible versions of the convector in a rectangular case, a wall-mounted version, the image is given without the front wall; 2, a heating element provided with a reflector-jacket; Fig. 3 shows an electroconvector when the heating elements are arranged in a staggered manner.
The electric convector contains a body 1 consisting of a front and a back panel connected by side, top and bottom walls. In the upper and lower walls of the body 1 there are holes 2. The shape of the body and the holes in it can be of different configurations.
Inside the housing 1 there are tubular heating elements 3 which are attached to the rear wall of the housing 1 by holders 4 with spring clips.
Tubular heating elements 3 are hollow tubes with an inner diameter of at least 25 mm.
The heating tubular elements 3 can be provided with jacket-reflectors 5 with vertical ribs.
The shape of the ribs can be different. The ribs can be screw-like, in the form of blade blades, etc.
The body of the electric convector can be either supporting or suspended (wall mounted). When carrying out the suspension version on the rear panel, from the outside, there are elements 6 of fixing the case to the wall.
With the floor version in the lower part of the body are hinged or stationary supports.
The device works as follows.
The electric convector is connected to the mains. Elements are heated to a certain temperature. Cold air coming through the holes in the housing, being heated, rushes into the holes of the pipes and into the gaps between them and the body.
The arrangement of the elements in combination with the hull design determines the effect of the "draft", as a result of which the convection of the air flow is markedly enhanced. Constant movement of heated air eliminates overheating of heating elements, promotes efficient heat transfer and increases the service life of the device.
CLAIM
1. An electroconductor comprising: a housing with holes and vertical elements in the form of hollow tubes disposed therein with a clearance relative to the walls and each other, characterized in that the inner diameter of the hollow tube is at least 25 mm, and the distance between the heating elements and the housing is not less than Diameter of the pipe.
2. An electroconvector according to claim 1, characterized in that the pipes are arranged in one or more rows.
3. An electroconvector according to claim 1, characterized in that the pipes are staggered.
4. An electroconvector according to claim 1, characterized in that the tubes in the body are secured by means of holders provided with, for example, spring elements.
5. An electroconvector according to claim 1, characterized in that the pipes are provided with shirts with reflective elements.
print version
Date of publication 25.01.2007gg
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