CN204555665U

CN204555665U - A kind of immersion heater outer tube damage monitoring equipment

Info

Publication number: CN204555665U
Application number: CN201520177543.0U
Authority: CN
Inventors: 宋振亚
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-03-27
Filing date: 2015-03-27
Publication date: 2015-08-12
Anticipated expiration: 2025-03-27

Abstract

The utility model discloses a kind of immersion heater outer tube damage monitoring equipment, it comprises two-chamber insulating ceramics pipe, two conductive wires, heater, electrical control cubicles and heatings; Two described resistant to elevated temperatures conductive wires are each passed through two-chamber insulating ceramics pipe; These two high-temperature electric conduction one end wiry are inserted in immersion heater outer tube with two-chamber insulating ceramics pipe, and the other end is connected with electrical control cubicles.The utility model is when immersion heater protective casing breaks; the metal of melting enters protective casing by crack-leakage, and flow to its extreme lower position touching and conducting high-temperature metal seal wire after, the trigger generation action in electrical control cubicles; by heating power-off, ensure safety in production.

Description

A kind of immersion heater outer tube damage monitoring equipment

Technical field

The utility model belongs to metal melting equipment, is specifically related to a kind of immersion heater outer tube damage monitoring equipment.

Background technology

The nucleus equipment that non-ferrous metal heating furnace is hot-dip, Die Casting Industry melts aluminium, zinc and alloy thereof, is incubated, purifies, its aluminium consumed every year, zinc account for respectively domestic aluminium, zinc total amount consumed 35% and 50%.Current China non-ferrous metal traditional heating stove adopts iron crucible external heating mode mostly, there is the problems such as corrosion of crucible is violent, energy consumption is high, environmental pollution is serious, resource utilization is low, particularly because the reaction of Xin – iron, Lv – iron forms a large amount of slag, cause that non-ferrous metal loss is large, liquation and the low inferior problem of end product quality, affect the market competitiveness of domestic hot-dip, injection moulding industry.Minority producer uses the equipment and technology of graphite crucible external heat, although improve product quality, there is energy consumption equally high, crucible scaling loss is serious, crucible costly, change that the crucible time is grown, a series of shortcoming such as need stop production.

In recent years, in the ceramic crucible of appearance, heating technique becomes the study hotspot of non-ferrous metal mode of heating, and it adopts internal heater metal needed for heat fused in ceramic crucible, thoroughly overcomes above-mentioned shortcoming.But the Main Bottleneck of this technology is that internal heater cover tube lifetime is shorter, and unstable.When immersion internal heater sleeve pipe generation crack damage, motlten metal will enter heater body by crack-leakage, touch inner heating, make whole metal bath charged, thus likely make crucible or crucible outer metal housing charged, cause huge potential safety hazard to operator.In addition, the motlten metal that seepage is entered in immersion internal heater sleeve pipe can reduce heating heating power, even causes short circuit, damages electric power system.

Summary of the invention

(1) technical problem that will solve

The utility model is in order to solve the problem; propose a kind of immersion heater outer tube damage monitoring equipment; when immersion heater protective casing breaks; the metal of melting enters protective casing by crack-leakage; and flow to its extreme lower position touching and conducting high-temperature metal seal wire after; trigger generation action in electrical control cubicles, by heating power-off, ensures safety in production.

(2) technical scheme

A kind of immersion heater outer tube damage monitoring equipment, is characterized in that, comprising: two-chamber insulating ceramics pipe, two conductive wires, heater, electrical control cubicles and heatings; Two described resistant to elevated temperatures conductive wires are each passed through two-chamber insulating ceramics pipe; These two high-temperature electric conduction one end wiry are inserted in immersion heater outer tube with two-chamber insulating ceramics pipe, and the other end is connected with electrical control cubicles; When immersion heater protective casing breaks, the metal of melting enters protective casing by crack-leakage, and flow to its extreme lower position touching and conducting high-temperature metal seal wire after, the trigger generation action in electrical control cubicles, by heating power-off.

Further, what described high temperature resistant conductive wire adopted is can work more than 6 months the material of oxidation scission inefficacy does not occur at 1100 DEG C.

Further, two described high-temperature electric conduction ends wiry protrude from outside two-chamber insulating ceramics pipe end, and are separated from each other; When heater normally works, on vertical direction, its height is lower than the extreme lower position of heating in immersion heater.

(3) beneficial effect

The utility model compared with prior art, it has following beneficial effect: a kind of immersion heater outer tube damage monitoring equipment that the utility model proposes, when immersion heater outer tube is damaged, motlten metal enters immersion heater inside along crack-leakage, and flow to extreme lower position on vertical direction, first touching also conducting high-temperature electric conduction wire, instead of heating, now cause the action of electrical control cubicles internal trigger after the conducting of high-temperature electric conduction wire, heater power source is cut off, ensure that production safety.

Accompanying drawing explanation

Fig. 1 is overall structure schematic diagram of the present utility model.

Mark in accompanying drawing and parts mark: 1. crucible; 2-two-chamber insulating ceramics pipe; 3-refractory metal seal wire; 4-immersion heater outer tube; 5-heating; 6-light-weight insulating brick.

Detailed description of the invention

Wherein, what described high temperature resistant conductive wire adopted is can work more than 6 months the material of oxidation scission inefficacy does not occur at 1100 DEG C.

Wherein, two described high-temperature electric conduction ends wiry protrude from outside two-chamber insulating ceramics pipe end, and are separated from each other; When heater normally works, on vertical direction, its height is lower than the extreme lower position of heating in immersion heater.

Below in conjunction with specific embodiment and accompanying drawing, the utility model is further described.

Utilize a two-chamber alundum tube, two high temperature Ni-Cr alloy silks are each passed through two chambeies of alundum tube, and are inserted into the bottommost of immersion heater outer tube together, and the other end of Ni-Cr alloy silk is connected with electrical control cubicles;

The two Ni-Cr alloy silk ends being inserted into immersion heater bottommost protrude from the outer 3mm of two-chamber alundum tube, separate in "eight" shape; As shown in drawings;

Immersion heater inserts crucible from crucible Upper vertical, when heater normally works, on vertical direction, the height of inner Ni-Cr alloy silk end lower than the extreme lower position of heating in heater, as shown in drawings;

Electrical control cubicles internal wiring meets following requirement: when there being motlten metal seepage to enter immersion heater outer tube, and during conducting Ni-Cr alloy silk, the trigger in electrical control cubicles starts action, by heating power-off in heater.

This embodiment product beta test is respond well, substantially increases the safety protective effect of operating worker.

Embodiment recited above is only be described preferred embodiment of the present utility model, not limits design of the present utility model and scope.Under the prerequisite not departing from the utility model design concept; the various modification that this area ordinary person makes the technical solution of the utility model and improvement; protection domain of the present utility model all should be dropped into; the technology contents of the utility model request protection, all records in detail in the claims.

Claims

1. an immersion heater outer tube damage monitoring equipment, is characterized in that, comprising: two-chamber insulating ceramics pipe, two conductive wires, heater, electrical control cubicles and heatings; Two described resistant to elevated temperatures conductive wires are each passed through two-chamber insulating ceramics pipe; These two high-temperature electric conduction one end wiry are inserted in immersion heater outer tube with two-chamber insulating ceramics pipe, and the other end is connected with electrical control cubicles; When immersion heater protective casing breaks, the metal of melting enters protective casing by crack-leakage, and flow to its extreme lower position touching and conducting high-temperature metal seal wire after, the trigger generation action in electrical control cubicles, by heating power-off.

2. a kind of immersion heater outer tube damage monitoring equipment according to claim 1, is characterized in that: what described high temperature resistant conductive wire adopted is can work more than 6 months the material of oxidation scission inefficacy does not occur at 1100 DEG C.

3. a kind of immersion heater outer tube damage monitoring equipment according to claim 1, is characterized in that: two described high-temperature electric conduction ends wiry protrude from outside two-chamber insulating ceramics pipe end, and are separated from each other; When heater normally works, on vertical direction, its height is lower than the extreme lower position of heating in immersion heater.