CN105848315A - Heater used for thermal treatment furnace - Google Patents
Heater used for thermal treatment furnace Download PDFInfo
- Publication number
- CN105848315A CN105848315A CN201610295570.7A CN201610295570A CN105848315A CN 105848315 A CN105848315 A CN 105848315A CN 201610295570 A CN201610295570 A CN 201610295570A CN 105848315 A CN105848315 A CN 105848315A
- Authority
- CN
- China
- Prior art keywords
- resistance wire
- tube
- electric heating
- electrothermal tube
- flange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
- H05B3/28—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/62—Heating elements specially adapted for furnaces
- H05B3/64—Heating elements specially adapted for furnaces using ribbon, rod, or wire heater
Landscapes
- Resistance Heating (AREA)
- Furnace Details (AREA)
Abstract
The invention discloses a heater used for a thermal treatment furnace. The heater comprises electric heating tubes, radiant tube flanges and connecting flanges. Each electric heating tube comprises a metal tube and a resistance wire. The resistance wire is arranged in the metal tube. A lead-out rod is connected at the two ends of the resistance wire. A magnesia powder compaction layer is arranged in the gaps between the resistance wire, the lead-out rods and the metal tube. Multiple sets of the electric heating tubes are fixed through the connecting flanges and the radiant tube flanges which are respectively arranged at the two ends. One end, which is close to the radiant tube flange, of each electric heating tube is provided with a ceramic support. The external side of the ceramic support is provided with a wiring cover. A supporting rod is arranged among the electric heating tubes. The supporting rod penetrates through the wiring cover. A radiant tube heat preservation sleeve is also arranged between each electric heating tube and each connecting flange. Contacting of the resistance wire with air is cut off in heating by the magnesia powder compaction layer so that time of oxidation reaction is reduced. Heat loss is further reduced by the radiant tube heat preservation sleeve, and the average service life of the electric heater can be enhanced to 28-32 months from 8-10 months so that the service life can be greatly enhanced.
Description
Technical field
The present invention relates to technical field of heating, be specifically related to a kind of heat-treatment furnace heater.
Background technology
Electric heater is the equipment that a kind of international popular converts electric energy to heat energy.After finding that power supply can occur heat effect by resistance wire, the most many inventors engage in research and the manufacture of various electric heating appliance in the world.Electrical heating is the process converting electrical energy into heat energy, for liquid, the intensification of gaseous medium of flowing, be incubated, heat.Heating chamber by electric heater under pressure when adding thermal medium, in using thermodynamic fluid principle uniformly to work heating, produced heat rationally carries, and makes heated medium temperature reach user's technological requirement.
At present, electric heater is widely used in Technology for Heating Processing, especially uses the most in heat-treatment furnace.But the electric heater of the overwhelming majority also exists following defect: heat loss is higher, poor stability, and service life is low, generally using the life-span just 8-10 month, for production line of batch, use cost is high, maintenance difficulties is big, and safeguard that labor intensity is big, energy resource consumption is high, thus have impact on the reliability of electric heater.
Summary of the invention
It is an object of the invention to provide a kind of heat-treatment furnace heater, solve above-mentioned existing technological deficiency.
The solution of the present invention is as follows: a kind of heat-treatment furnace heater, including electrothermal tube, radial canal flange and adpting flange；Described electrothermal tube includes metal tube and resistance wire；Being provided with resistance wire in described metal tube, resistance wire two ends connect eduction rod, is provided with magnesia powder compacted lift in the gap between described resistance wire, eduction rod and metal tube；Adpting flange and radial canal flange that some groups of electrothermal tubes are respectively provided with by two ends are fixed；Described electrothermal tube is provided with ceramics bracket near radial canal flange one end, is provided with separate terminal enclosure outside ceramics bracket；Being provided with support bar in the middle of described electrothermal tube, support bar passes separate terminal enclosure；Radial canal muff it is additionally provided with between described electrothermal tube and adpting flange.
Further, the middle part of described electrothermal tube is provided with the fixed plate for fixing support.
Further, it is evacuated state in described separate terminal enclosure.
The invention have the benefit that the simple in construction of the present invention, deft design；Magnesia powder compacted lift in electrothermal tube can completely cut off air, because exposed aerial resistance wire is compacted into magnesia powder compacted lift by metal tube magnesia powder, completely cut off resistance wire at adstante febre and air contact, reduced the time of oxidation reaction, increase substantially the life-span of heater；Reduce thermal loss further by radial canal muff, electric heater can be brought up to 28-32 month from 8-10 month average life, improve production efficiency, greatly reduce cost, decrease maintenance cost.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the present invention；
Fig. 2 is the structural representation of the right view of the present invention；
Fig. 3 is the structural representation of electrothermal tube of the present invention.
Wherein: 1, separate terminal enclosure；2, ceramics bracket；3, radial canal muff；4, electrothermal tube；5, fixed plate；6, radial canal flange；7, support bar；8, adpting flange；41, metal tube；42, eduction rod；43, resistance wire；44, magnesia powder compacted lift.
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 3, a kind of heat-treatment furnace heater, including electrothermal tube 4, radial canal flange 6 and adpting flange 8；Described electrothermal tube 4 includes metal tube 41 and resistance wire 43；It is provided with resistance wire 43 in described metal tube 41, resistance wire 43 two ends connect eduction rod 42, gap between described resistance wire 43, eduction rod 42 and metal tube 41 is provided with magnesia powder compacted lift 44, magnesia powder compacted lift 44 can completely cut off air, has heat conduction good, the feature of homogeneous heating, heat transmission is carried out by metal tube 41, compared with traditional air conduction, it is possible to achieve quickly heat, the efficiency of heating surface is greatly improved；Adpting flange 8 and radial canal flange 6 that some groups of electrothermal tubes 4 are respectively provided with by two ends are fixed；Described electrothermal tube 4 is provided with ceramics bracket 2 near radial canal flange 6 one end, is provided with separate terminal enclosure 1 outside ceramics bracket 2；Being provided with support bar 7 in the middle of described electrothermal tube 4, support bar 7 upper end is provided with screw thread, electrothermal tube 4 is screwed in and is fixed in radial canal muff 3, and support bar 7 is through separate terminal enclosure 1；It is additionally provided with radial canal muff 3 between described electrothermal tube 4 and adpting flange 8, the setting of radial canal muff 3 makes the connection between electrothermal tube 4 and adpting flange 8 the most firm, heat dissipation capacity is greatly reduced, heat energy is made to be fully utilized, reduce the loss of heat, thus reduce the consumption of electric energy, improve work efficiency, there is the feature of energy-conserving and environment-protective.This electric heater can bring up to electric heater 28-32 month from 8-10 month average life, improves production efficiency, greatly reduces cost, it is also possible to reduces maintenance cost, reduce labor intensity.Because exposed aerial resistance wire 43 is compacted into magnesia powder compacted lift 44 by 41 magnesia powders of metal tube, completely cuts off resistance wire 43 at adstante febre and air contact, reduced the time of oxidation reaction, increase substantially the life-span of heater.The lower end of described support bar 7 is provided with disk, and fixing for support bar 7, support bar 7 also has certain guide effect.
The middle part of described electrothermal tube 4 is provided with the fixed plate 5 for fixing support, and fixing support effect is more preferable, and in heating process, electrothermal tube 4 is not easy the flexural deformation occurring causing because of thermal deformation, thus affects the normal of equipment and effectively run.
Being evacuated state in described separate terminal enclosure 1, make electrothermal tube 4 two ends all seal heat insulation, heat scatters and disappears less, and the thermal efficiency is higher, and ensures the starvation of wire harness, reduces by degree of oxidation, and aging speed is slower, and the life-span is longer.
Although the detailed description of the invention to the present invention gives detailed description and explanation above; but it should be noted that; we can carry out various equivalence according to the conception of the present invention to above-mentioned embodiment and change and amendment; function produced by it still without departing from description contained spiritual time, all should be within protection scope of the present invention.
Claims (3)
1. a heat-treatment furnace heater, including electrothermal tube, radial canal flange and adpting flange；It is characterized in that: described electrothermal tube includes metal tube and resistance wire；Being provided with resistance wire in described metal tube, resistance wire two ends connect eduction rod, is provided with magnesia powder compacted lift in the gap between described resistance wire, eduction rod and metal tube；Adpting flange and radial canal flange that some groups of electrothermal tubes are respectively provided with by two ends are fixed；Described electrothermal tube is provided with ceramics bracket near radial canal flange one end, is provided with separate terminal enclosure outside ceramics bracket；Being provided with support bar in the middle of described electrothermal tube, support bar passes separate terminal enclosure；Radial canal muff it is additionally provided with between described electrothermal tube and adpting flange.
A kind of heat-treatment furnace heater the most according to claim 1, it is characterised in that: the middle part of described electrothermal tube is provided with the fixed plate for fixing support.
A kind of heat-treatment furnace heater the most according to claim 1, it is characterised in that: it is evacuated state in described separate terminal enclosure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295570.7A CN105848315A (en) | 2016-05-06 | 2016-05-06 | Heater used for thermal treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295570.7A CN105848315A (en) | 2016-05-06 | 2016-05-06 | Heater used for thermal treatment furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105848315A true CN105848315A (en) | 2016-08-10 |
Family
ID=56590919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610295570.7A Withdrawn CN105848315A (en) | 2016-05-06 | 2016-05-06 | Heater used for thermal treatment furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105848315A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108024391A (en) * | 2017-12-29 | 2018-05-11 | 安徽省宁国市天成电机有限公司 | A kind of carbon fiber heating tube |
-
2016
- 2016-05-06 CN CN201610295570.7A patent/CN105848315A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108024391A (en) * | 2017-12-29 | 2018-05-11 | 安徽省宁国市天成电机有限公司 | A kind of carbon fiber heating tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160810 |
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| WW01 | Invention patent application withdrawn after publication |