CN2490785Y

CN2490785Y - Constant power high-temp thermoelectric band

Info

Publication number: CN2490785Y
Application number: CN 01238348
Authority: CN
Inventors: 沈根宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-06-16
Filing date: 2001-06-16
Publication date: 2002-05-08
Anticipated expiration: 2011-06-16

Abstract

A constant power high-temp thermoelectric band belongs to the electric heating technical field. A fiberglass intertexture layer and a mica tape interwinding layer which have insulation and heat preservation effect are arranged between a heating resistance wire and a current lead, the heating resistance wire and the current lead are connected with each other by an electricity conducting pad and an electricity conducting pressing contact screw, the outside of the heating resistance wire are wrapped by the mica tape interwinding layer and the fiberglass intertexture layer which have insulation and heat preservation effect. The utility model increases the high temperature serviceability significantly, increases the upper temperature limit to 450 DEG C and has advantages of high power, rapid heating, even heat, etc. The utility model is widely used in the heating field such as pipe heating, etc..

Description

Permanent power high-temperature electric heat band

The utility model belongs to permanent power high-temperature electric heat band.

Permanent power high-temperature electric heat band is applicable to the heating of pipeline etc.In the prior art, permanent power high-temperature electric heat band mainly with fluoroplastics as the insulation and insulation material, this kind ribbon heater is subjected to the limitation of fluoroplastics heat resisting temperature, can only use in the environment of ceiling temperature below 205 ℃.

The purpose of this utility model is to provide a kind of permanent power high-temperature electric heat band with higher serviceability temperature, and it can use in the environment of ceiling temperature below 450 ℃.

The utility model comprises ampere wires, electric resistance silk and thermal insulating layer, be characterised in that device between resistance wire and the ampere wires has had the fiberglass braided layer and the mica tape winding layer of thermal insulating effect, press by conductive spacer and conduction between electric resistance silk and the ampere wires and touch screw and is connected, the coated outside of electric resistance silk plays the mica tape winding layer of thermal insulating effect and fiberglass braided layer.

Its further feature is that one deck mica tape winding layer and layer glass fibrage layer are housed between electric resistance silk and the ampere wires; The coated outside of electric resistance silk has one deck mica tape winding layer and layer glass fibrage layer.

Because device has had the fiberglass braided layer and the mica tape winding layer of thermal insulating effect between electric resistance silk and the ampere wires, the coated outside of electric resistance silk plays the mica tape winding layer and the fiberglass braided layer of thermal insulating effect, glass fibre and mica tape belong to inorganic material, has much better resistance to elevated temperatures compared with fluoroplastics, heat-insulating property and insulation property, thereby make the utility model improve the high temperature serviceability greatly, its upper limit serviceability temperature reaches 450 ℃, can be used for heating, insulation etc., and it is big to have power, heating is fast, advantages such as heat is even.

Fig. 1 is that the utility model structure member tool is peeled off the structural representation under the state in the part;

Fig. 2 is a transversal cut-away view of the present utility model.

Further specify embodiment of the present utility model below in conjunction with accompanying drawing.

See Fig. 1 and Fig. 2,1 and 12 is parallel ampere wires, joins with

power supply.Lead

1 and 12 is fiberglass braided layer 2 of preface coating in turn, mica tape winding layer 3, fiberglass braided layer 4 respectively, with fiberglass braided layer 5 coated wire 1 and two fiberglass braided layer 4 whole parcels that are in tangent position of 12 respectively, fiberglass braided layer 5 and fiberglass braided layer 4 constitute whole glass layer together then.

See Fig. 1, on the outer surface of glass layer 5, twine electric resistance silk 6, on electric resistance silk 6, install conductive spacer 11 at a certain distance, see Fig. 2, conduction is pressed and is touched screw 10 by the hole on the conductive spacer 11, pass fiberglass braided

layer

5,4,2 and mica tape winding layer 3, enter ampere wires 12, realize that so electric resistance silk 6 is connected with the conduction of ampere wires 12.For lead 1 and resistance wire 6, also be to adopt identical connected mode.Press the contact screw that the touches certain position device that staggers with lead 1 and lead 12.

Ampere wires

1 and 12 for multiply strand around lead, as be generally 19 strands strand around forming.The distance size of conductive spacer is relevant with the watt level of ribbon heater, 100 watts every meter ribbon heater for example, and conductive spacer is apart from being 64 centimetres.80 watts every meter ribbon heater, the conductive spacer distance is got 80 centimetres.A series of pressures are touched contact screw respectively with after

ampere wires

1 and 12 is connected, and constitute the electric resistance silk heating network that is connected in parallel.

See Fig. 1 and Fig. 2, play the mica tape winding layer 7 of thermal insulating effect, fiberglass braided layer 8 and 9 in the coated outside of electric resistance silk 6.Figure 1 and Figure 2 is a most preferred embodiment of the present utility model: device has one deck mica tape winding layer and layer glass fibrage layer between electric resistance silk 6 and

ampere wires

1 and 12, and mica tape winding layer 3 is between fiberglass braided

layer

2,4; The coated outside of electric resistance silk 6 has one deck mica tape winding layer and layer glass fibrage layer, and mica tape winding layer 7 is positioned within the layer glass fibrage layer 8,9.As other embodiment, between electric resistance silk and the ampere wires and the outside of electric resistance silk also can be enclosed with the mica tape winding layer that plays the thermal insulating effect and the fiberglass braided layer of other varying number combinations or diverse location combination.Above-mentioned mica tape winding layer is to make with the mica parcel on glass fiber tape, and the commercially available prod is arranged.Mica tape and fiberglass braided layer twine with prior art (machine).

Claims

1, permanent power high-temperature electric heat band, comprise ampere wires, electric resistance silk and thermal insulating layer, it is characterized in that having installed between electric resistance silk and the ampere wires the fiberglass braided layer and the mica tape winding layer of thermal insulating effect, press by conductive spacer and conduction between electric resistance silk and the ampere wires and touch screw and is connected, the coated outside of electric resistance silk plays the mica tape winding layer of thermal insulating effect and fiberglass braided layer.

2, by the said ribbon heater of claim 1, it is characterized in that device has one deck mica tape winding layer and layer glass fibrage layer between electric resistance silk and the ampere wires.

3, by the said ribbon heater of claim 1, it is characterized in that the coated outside of electric resistance silk has one deck mica tape winding layer and layer glass fibrage layer.

4, by claim 1 or 2 said ribbon heaters, it is characterized in that the mica tape winding layer is between layer glass fibrage layer.

5, by claim 1 or 3 said ribbon heaters, it is characterized in that the mica tape winding layer is positioned within the layer glass fibrage layer.