CN2553273Y - High efficient energy-saving closed electric heating stove - Google Patents

Abstract

The utility model provides an energy-efficient closed electric heating furnace, belonging to an electric heating device, which comprises an electrothermal alloy wire, a closed cover plate and a chassis. The utility model is characterized in that the closed cover plate is close-connected with the chassis; the electrothermal alloy wire is positioned between the closed cover plate and the chassis; an insulation layer is covered on the chassis; a coating layer of far infrared ray is covered on the surface or on the circumference of the electrothermal alloy wire. The utility model has the advantages of insulation and oxidation resistance performances of the surface of the electrothermal wire of the heating element, forming through densely winding, low load of the surface, no open flame, high electric heating efficiency, energy-saving, safe use, and long service life.

Description

A kind of energy-efficient enclosed type electric heating furnace

(1) technical field:

The utility model is a kind of energy-efficient enclosed type electric heating furnace, belongs to electric heating equipment.

(2) background technology:

At present, use the small power electric heating furnace of heating wire manufacturing both at home and abroad, mainly contain heating wire and expose formula and the closed electric furnace of plate cylinder iron, all there is heating wire load height in these two kinds of electric furnaces, the thermal efficiency is low, power consumption is big, heating-up temperature is inhomogeneous, heating wire vulnerable to pollution, heating wire pallet and the explosive rhegma of cast iron plate are bad, use dangerous, shortcoming and problems such as service life is short are so fail to be used widely.

(3) summary of the invention:

The purpose of this utility model be exactly for overcome and solve that there is the load height in the conventional electric heating stove, the thermal efficiency is low, power consumption is big, heating-up temperature is inhomogeneous, heating wire pallet or the explosive rhegma of cast iron plate is bad, it is dangerous to use, service life is short etc. shortcoming and problem, research and design is a kind of adopt the anti-oxidant heating wire of surface insulation and can be close around use, heating wire that surface loading is low is as electrical heating element, the flames of anger, the energy-efficient enclosed type electric heating furnace of saves energy, safe in utilization, long service life significantly.

The utility model is realized by following technical proposals: it is connected and composed by lectrothermal alloy wire, closed cover, the common installation in chassis, its mutual alignment and annexation are: closed cover seals connection mutually with the chassis, lectrothermal alloy wire places between closed cover and the chassis, on the chassis, be covered with heat-insulation layer, on lectrothermal alloy wire surface or apply the far-infrared paint layer on every side.Fixing heating wire pallet between lectrothermal alloy wire and heat-insulation layer, lectrothermal alloy wire is placed on the heating wire pallet.Heat-insulation layer can be alumina silicate fibre material heat-insulation layer.The chassis can be the closed metal chassis.Lectrothermal alloy wire can be the anti-oxidant siderochrome aluminium of a surface insulation lectrothermal alloy wire.Closed cover can be aluminising or aluminium-plated metallic plate or high temperature resistant micro-crystalline ceramic material.

The utility model is compared with domestic and international existing electric furnace and had following advantage and beneficial effect: (1) heating wire surface loading of the present utility model is low: because the used heating wire of the utility model is the anti-oxidant siderochrome aluminium of the surface insulation lectrothermal alloy wire (patent No.: ZL00227329.2) close coiled type that adopts inventor's development; heating wire is indeformable, temperature is even, surperficial power load is low, programming rate is fast, heating wire is surperficial has a pure protective oxide film of one deck, makes not oxidation of heating wire, not contaminated.Overcome heating wire surface power load height that existing heating wire exposes formula electric furnace and cast iron plate closed electric furnace, the thermal efficiency is low, heating wire is yielding, heating-up temperature is inhomogeneous, vulnerable to pollution and shortcoming such as blow; (2) the utility model thermal efficiency height, saves energy significantly: because heating wire surface coated one deck high strength far infrared radiation coating and around the heating wire pallet with the good alumina silicate fibre heat-insulation layer of bottom cushioning one deck heat-insulating property, make the centralized heat energy of heating wire make progress radiation, conduction, thereby can increase substantially the thermal efficiency and heat-insulating property, make the utility model still can keep hot operation a period of time except that behind the power supply, to reach energy-efficient purpose disconnected.For example the utility model electric furnace and electromagnetic oven are compared as follows shown in the table 1 in time boiling 2 literss of water institute power consumption: table 1: (3) the utility model security performance height: the utility model is to adopt the anti-oxidant heating wire of surface insulation, and adds on the heating wire surface and to be coated with certain thickness far-infrared paint insulating barrier, makes to the utlity model has the double insulation layer, guarantees Electrical Safety; (4) the heating wire surface loading is low, the thermal efficiency is high owing to the utlity model has, saves energy, Electrical Safety, long service life significantly, be applicable to the advantages such as cooker of any material and specification, can be widely used in family, hotel, factory, school, R﹠D institution, saves energy is had remarkable economic efficiency and social benefit.

(4) description of drawings:

Below Figure of description is further specified as follows: Fig. 1 is the structural representation of this energy-efficient enclosed type electric heating furnace, and Fig. 2 is another structural representation of this energy-efficient enclosed type electric heating furnace.Among the figure: the 1st, the anti-oxidant lectrothermal alloy wire of surface insulation, the 2nd, coated is at the high temperature resistance and high strength far-infrared paint layer on the anti-oxidant lectrothermal alloy wire of surface insulation surface, the 3rd, the electric furnace closed cover, the 4th, the heating wire pallet, the 5th, high temperature resistant and alumina silicate fibre material heat-insulation layer, the 6th, electric furnace metal chassis with good thermal insulation property.

(5) specific embodiment:

The structural representation of this energy-efficient enclosed type electric heating furnace as shown in Figure 1, high temperature resistant and have in the dish on the evenly auxilliary closed metal chassis 6 that places electric furnace of the alumina silicate fibre heat-insulation layer 5 of good thermal insulation property and around, heating wire pallet 4 be installed on high temperature resistant and have good thermal insulation property alumina silicate fibre material heat-insulation layer 5 above, be installed in the heating wire pallet 4 behind the close coiled type of anti-oxidant flat of surface insulation or circular lectrothermal alloy wire, reach on every side directly coated high temperature resistance and high strength far-infrared paint layer 2 on the anti-oxidant lectrothermal alloy wire of surface insulation surface again, or heating wire is placed directly on the alumina silicate fibre surface that is sprayed with the high temperature resistance and high strength far-infrared paint, make heating wire and heat-insulation layer 5 constitute split or disjunctor, electric furnace closed cover 3 is by sealing connection with the heat proof material bonding or with screw and nut mutually with the closed metal chassis 6 of electric furnace, and closed cover can adopt aluminising or aluminium-plated metallic plate or high temperature resistant micro-crystalline ceramic material.Fig. 2 is the energy-efficient enclosed type electric heating furnace that does not have heating wire pallet 4.

The inventor thinks and realizes that optimal way of the present utility model can be as follows: (1) is by Fig. 1 or shown in Figure 2, design, processing and manufacturing or choose each parts or material, the anti-oxidant lectrothermal alloy wire 1 of the surface insulation anti-oxidant siderochrome aluminium of the surface insulation lectrothermal alloy wire that can adopt the inventor to develop for example (can be: the close coiled type Chinese patent of ZL00227329.2) referring to the patent No.; The direct all or part of coated of the high temperature resistant far-infrared paint of silica that Beijing nova chemical reagent work that far-infrared paint layer 2 can select for use market to buy produces is around the heating wire surface reaches; 3 optional aluminisings of electric furnace closed cover or aluminium-plated steel plate or high temperature resistant nonmetallic materials are processed into surface plate, single face corrugated plating or two-sided corrugated plating with machine-tooled method; Heating wire pallet 4 commercially available high temperature resistant electric furnace pans, or heating wire is placed directly on the alumina silicate fibre surface that is sprayed with high temperature resistant far-infrared paint, make heating wire and heat-insulation layer 5 constitute split or disjunctor without the heating wire pallet, the alumina silicate fibre material high temperature resistant and the tool good thermal insulation property that the alumina silicate fibre heat-insulation layer can be chosen the production of Lanzhou, Gansu carbon fibre factory can be made into whole or heat-insulation layer assembly; Electric furnace metal chassis 6 can select for use steel plate to form with the process for stamping processing and manufacturing; And can join or be bonded to the enclosed type electric heating furnace by screw and nut or heat-resistant bonded material and cover plate, heating wire and power line pass from electric furnace metal chassis top reserving hole after can directly being connected and packing into the high-temperature insulation sleeve pipe; (2) process or chosen each parts or material after, can connection be installed by described position of top specification and annexation, can realize just that a kind of heating wire surface loading is low, heat is concentrated upwards radiation, electrothermal efficiency height, the flames of anger, safe in utilization, energy-efficient enclosed type electric heating furnace that the life-span is long.

Claims (4)

1, a kind of energy-efficient enclosed type electric heating furnace, it is characterized in that: it is connected and composed by lectrothermal alloy wire (1), closed cover (3), chassis (6) common installation, its mutual alignment and annexation are: closed cover (3) seals connection mutually with chassis (6), lectrothermal alloy wire (1) places between closed cover (3) and chassis (6), on chassis (6), be covered with heat-insulation layer (5), on lectrothermal alloy wire (1) surface or apply far-infrared paint layer (2) on every side.

2, a kind of energy-efficient enclosed type electric heating furnace according to claim 1 is characterized in that: fixing heating wire pallet (4) between lectrothermal alloy wire (1) and heat-insulation layer (5), lectrothermal alloy wire (1) is placed on the heating wire pallet (4).

3, a kind of energy-efficient enclosed type electric heating furnace according to claim 1, it is characterized in that: heat-insulation layer (5) is an alumina silicate fibre material heat-insulation layer.

4, a kind of energy-efficient enclosed type electric heating furnace according to claim 1 is characterized in that: closed cover can be aluminising or aluminium-plated metallic plate or high temperature resistant micro-crystalline ceramic material.