CN202773094U

CN202773094U - Electric heating ring

Info

Publication number: CN202773094U
Application number: CN 201220428235
Authority: CN
Inventors: 林先腾
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-28
Filing date: 2012-08-28
Publication date: 2013-03-06
Anticipated expiration: 2022-08-28

Abstract

An electric heating ring comprises, from outside to inside, a housing, a thermal insulation layer, an electric heating layer, a heat conduction layer and a thermal dissipation layer. The thermal insulation layer belongs to flame-retardant and heat insulation cotton. A plurality of rare metal heating sheets are distributed inside the electric heating layer. The heat conduction layer is made from aluminium alloy. The thermal dissipation layer is provided with a plurality of heat radiation holes. Compared with the prior art, the electric heating ring has the advantages that the thermal insulation layer and the rare metal heating sheets are designed, and the rare metal heating sheets are high in heating efficiency and are cooperated with the thermal insulation layer, so that unidirectional heat transfer is realized, heat energy is more concentrated and heat loss is low; and the adoption of the heat conduction layer helps to accelerate the heat transfer efficiency.

Description

Electrothermal ring

Technical field

The utility model relates to a kind of electric heater unit, specifically a kind of Electrothermal ring that is applied in the rubber melting cylinders such as injection molding machine, wire drawing machine, inflation film manufacturing machine.

Background technology

When the machining apparatus such as injection molding machine, wire drawing machine, inflation film manufacturing machine are worked, because of need of work, all dispose rubber melting cylinder, be provided with electro-heat equipment in it, in order to colloid is carried out hot melt.

Present electro-heat equipment, adopts following three kinds of mode of heatings more:

The first, the common electrical gas ket, but the heating efficiency of electric heating coil is lower, and thermal losses is large in the heating process simultaneously, can't satisfy the need of production of equipment;

The second, infrared ray/microwave heating, its heater adopts the heating wire glass tube, and heat conducts by infrared radiation, but the thermal inertia of this kind mode is large, and the temperature poor controllability affects the equipment job stability;

The third, the high-frequency electromagnetic heating, this kind mode use cost is higher, needs simultaneously to increase rectifying device, has a large amount of electronic building bricks, and system complex needs the special messenger to safeguard, and maintenance cost is higher.

In sum, present rubber melting cylinder heater all has certain deficiency, can not well satisfy the instructions for use of the machining apparatus such as injection molding machine, wire drawing machine, inflation film manufacturing machine.Simultaneously, traditional rubber melting cylinder heater does not have Design on thermal insulation in it, and just so that the heat energy of heater has quite a few can reach outward out-of-bounds, heat conduction efficiency is lower for this, and thermal losses is large, not only affects firing rate, has also greatly increased energy cost.

So, research and develop that a kind of conduction efficiency is high, thermal losses is little, the low rubber melting cylinder heater that consumes energy is also for problem demanding prompt solution in the industry.

The utility model content

The purpose of this utility model is to overcome existing deficiency in traditional rubber melting cylinder heater, and the Electrothermal ring that a kind of conduction efficiency is high, thermal losses is little is provided.

For achieving the above object, the technical scheme that the utility model adopts is: a kind of Electrothermal ring, it is respectively housing, thermal insulation layer, electric heating layer, heat-conducting layer and thermal transpiration layer from outside to inside.

Described thermal insulation layer is fire-retardant, heat insulation foam;

Be distributed with a plurality of rare metal fever tablets in the described electric heating layer;

Described heat-conducting layer is that aluminium alloy is made;

Described thermal transpiration layer is provided with a plurality of louvres.

Operation principle of the present utility model is: by rare metal fever tablet conductive exothermal, via the aluminium alloy heat-conducting layer thermal energy conduction to thermal transpiration layer is sent via louvre, material to be heated is heated.

The utility model is compared with conventional art, it is advantageous that: by the design of thermal insulation layer and rare metal heating plate, utilize the high advantage of rare metal heating plate heating efficiency, cooperate thermal insulation layer, reach the purpose of unidirectional heat transfer, make heat energy more concentrated, thermal losses is little, adopt simultaneously heat-conducting layer, accelerated its heat transference efficiency.

Description of drawings

Accompanying drawing 1 is structural representation of the present utility model, also is that summary is with scheming.

Each label is respectively among the figure:

(1) housing;

(2) thermal insulation layer;

(3) electric heating layer;

(4) heat-conducting layer;

(5) thermal transpiration layer.

Embodiment

For conveniently understanding the utility model, existing by reference to the accompanying drawings 1 for an embodiment, the utility model is made further instruction.

Embodiment:

It is respectively housing 1, thermal insulation layer 2, electric heating layer 3, heat-conducting layer 4 and thermal transpiration layer 5 from outside to inside the utility model.

Described thermal insulation layer 2 is fire-retardant, heat insulation foam;

Be distributed with a plurality of rare metal fever tablets in the described electric heating layer 3;

Described heat-conducting layer 4 is made for aluminium alloy;

Described thermal transpiration layer 5 is provided with a plurality of louvres.

The above, only be better enforcement of the present utility model, be not that the utility model is done any pro forma restriction, any those skilled in the art may utilize above-mentioned technology contents to be changed or be modified to the equivalent embodiment of equivalent variations, at this, all the technical solution of the utility model contents that do not break away from, just foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment does.

Claims

1. Electrothermal ring is characterized in that: be respectively from outside to inside housing, thermal insulation layer, electric heating layer, heat-conducting layer and thermal transpiration layer, be distributed with a plurality of rare metal fever tablets in the described electric heating layer.

2. Electrothermal ring as described in claim 1, it is characterized in that: described thermal insulation layer is fire-retardant, heat insulation foam.

3. Electrothermal ring as described in claim 1, it is characterized in that: described thermal transpiration layer is provided with a plurality of louvres.