SU779746A1

SU779746A1 - Electric heating appliance

Info

Publication number: SU779746A1
Application number: SU782723712A
Authority: SU
Inventors: Анатолий Дмитриевич Васильев; Петр Леонидович Тихомиров; Александр Иванович Дударь
Original assignee: Предприятие П/Я Г-4696
Priority date: 1978-12-29
Filing date: 1978-12-29
Publication date: 1980-11-15

Description

(54) ЭЛЁКТРООТОПИТЕЛЬНЫЙ ПРИБОР(54) ELECTRIC SUPPLY DEVICE

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Изобретение относктс к бытсивой электротермии, в частности к электроотопительным сфиборам с ПЛОСКИМИ нагревател ми .The invention relates to a hot electrothermal environment, in particular, to electric heating sefiboram with FLAT heaters.

Известны электроотоггателькме прЕйоры , сопержашие плоский нагр атепь (например на базе высокоомных прсюолок, токопр(жод 1фх КС1М1ТОЗН1ШЙ, углеродных волокон и т. п.), который устансюлен между двум теПлоотдаюшими п)шстйнами,д Теплопередача от нагревани к пластннам осуществл етс здесь, в основном, теплопроводностью. Пластины ыогут быть выполнены гладкими или гофрированнымиThe preoyor electric tractors are known, which support flat heating (for example, on the basis of high-resistance pins, tokopr (1fx junction KS1M1TOZNYY, carbon fibers, etc.), which is installed between two thermal areas), heat transfer from the heat source, and heat treatment, from the heat source, from the heat source, from the heat source, from the heat source, from the heat source, from the heat source, from the heat transfer, from the heat transfer, from the heat transfer, from the heat transfer, to the heat transfer from the heat sink, from the heat dissipation, from the heat transfer to the heat sink mainly thermal conductivity. Plates can be made smooth or corrugated

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Недостатком таких приборов вл етс ВСThe disadvantage of such devices is the sun.

больша материалоемкость и габариты. Например, при температуре рабочей поверхности пластин площадь теплоотдающих поверхностей составл ет око- jg ло 1 на 1 кВт установленной мощности . Уменьшение теплоотдающей поверхности св зано в таких приборах с повышением температуры на рабочей поверхности до величины, выше допустимой (равна 1О5-11О°С).large consumption of materials and dimensions. For example, at the temperature of the working surface of the plates, the area of heat transfer surfaces is about jg 1 per 1 kW of installed power. The decrease in heat transfer surface is associated in such devices with an increase in temperature on the working surface to a value higher than the allowable one (equal to 1010-11 ° C).

Наиболее близким к предлагаемому электроотопительный прибор, содержащий плоский нагреватель, установленный между теплоотдающими пластинами с гофрами, образующими сквозные вертикальные каналы. Эти каналы играют роль воздуховодов, в которых организуетс дополнит 1ьно конвективна теплсцртдача от ncBet xHOCTH нагревател и части внешней поверхности теплоотдающих пластин . Увеличение конвективной составл ющей теплоотдачи позвол ет уменьшить поверхность пластин , повысить удельную мощность нагревател и, следовательно, уменьшить размеры и материало «(кость прибора j3j.Closest to the proposed electric heating device containing a flat heater installed between the heat-giving plates with corrugations, forming a through vertical channels. These channels play the role of air ducts, in which the convective heat transfer from the ncBet xHOCTH heater and part of the outer surface of the heat-release plates is organized in addition to one. An increase in the convective component of heat transfer can reduce the surface of the plates, increase the specific power of the heater and, consequently, reduce the size and material (instrument bone j3j.

Claims

However, in this case, heat is added to the heat produced in the upper part of the device, which is transferred by convection in the channels from the lower part of the device, which leads to overheating of the upper part of the device. With the existing temperature limitations of the working tic surface of the plates, this causes a thermal under-utilization of the lower part .., f -M -----..-- ---. -.- - .. device, and as a result, waste of materials. The aim of the invention is to reduce the consumption of electrically boiled coal. . ... . - .. , ... .i4-4Ji7; 4, ti -. . instrument and uniformity of working surfaces. .,-one ...-. The goal is achieved by the fact that in an electric heating device containing a flat heater, placed between the heat emitting vanes with corrugations that form through vertical canals: the upper part of the inner surface of the plates is made with a reduced integral radiative capacity. is significantly reduced, which is achieved by the Andyuzhenyy temperature and the redistribution of heat flux in the ezgoy region in the direction of greater heating of the air in the channels And an increase in the heating of the lower part of the device (due to an increase in the temperature of the heater). A decrease in the integral emissivity in the upper part of a layer can be achieved by applying coatings, for example, aluminum paint, foil, and polishing the surface. For devices with steel plates, the greatest uniformity is achieved when using aluminum foil ZSH-35% of the upper part of the inner surface of plates. The use of the present invention allows for an exclusion of about 15% of the material®. Claims of the Invention An electric appliance comprising a flat heater mounted between heat-transferring plates with corrugations forming through vertical channels, which is based on the fact that, in order to reduce the materiality of the heated surfaces, the top part of the bottom section has a lowered surface. radiative stability; Source info information. taken into account in the examination. 1. For Japan Japan No. 48-36777, cl. 90 C 3, 1973.

2. For Japan N 48-36778, cl. 9O C 3, 1973.

3. US patent number 2892055, class. 219-377, 1959 (prototype).