CN202206576U - Electric heating body - Google Patents
Electric heating body Download PDFInfo
- Publication number
- CN202206576U CN202206576U CN2011203322865U CN201120332286U CN202206576U CN 202206576 U CN202206576 U CN 202206576U CN 2011203322865 U CN2011203322865 U CN 2011203322865U CN 201120332286 U CN201120332286 U CN 201120332286U CN 202206576 U CN202206576 U CN 202206576U
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- CN
- China
- Prior art keywords
- electric heating
- heating body
- corundum
- resistance wire
- furnace shell
- 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.)
- Expired - Fee Related
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- Resistance Heating (AREA)
Abstract
The utility model relates to an electric heating body and particularly relates to a double-helix electric heating body. The electric heating body comprises a resistance wire, two corundum sleeves, firebricks, a hole plug, heat insulating materials, a furnace shell, an insulating board and two lead-out bars, wherein the resistance wire is a U-shaped double-helix resistance wire which is wound on the two mutually-parallel hollow corundum sleeves, the tail ends of the U-shaped double-helix resistance wire turn back to the other end of each of the two corundum sleeves to form the two parallel lead-out bars, a U-shaped groove is arranged at one end of each corundum sleeve; the U-shaped grooves are respectively embedded into the firebricks; the heat insulating materials are filled among the firebricks and the furnace shell; the hole plug is sleeved on the lead-out bars; and the lead-out bars and the hole plug are fixed on the furnace shell through the insulating board. With the adoption of a U-shaped double-helix structure, the electric heating body is more stable; and the smooth corundum sleeves serve as supports, so that the electric heating body has the advantages of small resistance in the heated retracting process, fast heat transfer, good strength, high heat efficiency, good heat evenness, long service life, and convenience in mounting and maintaining.
Description
Technical field
The utility model relates to a kind of electric heating body, and particularly a kind of double helix electric heating body is mainly used in the pyrotoxin of power metallurgy equipment, Equipment for Heating Processing.
Background technology
At present, the structure that is used for the spiral electric heating body at industrial furnace cellar for storing things mainly contains two kinds: a kind of is that traditional single-screw heat-generating pipe is only formed by the resistance wire coiling, is tiled in the special refractory brick groove, and three are close to brick wall; Another kind is a corundum pipe box spiral resistance wire, comprises corundum sleeve pipe, resistance wire, and resistance wire one end makes it two eduction rods and is parallel to an end from turning back in the helix tube to the other end.
More than the defective of first kind of mode be: spiral tube structure is unstable, is heated to be prone to take place deformation.Three of heaters and refractory brick are close to, and thermal accumlation is serious, and the heat efficiency is low, and surface loading is big, reduce useful life; Be heated when stretching and coarse refractory brick mantle friction, easy fracture damages; For the installation and removal heater, the two sides perforate of furnace shell opposite side, mounting or dismounting are inconvenient.
The advantage of the second way is that smooth corundum sleeve pipe supports, and the resistance that is heated when flexible is little, and heat transferred is fast, the life-span is longer, only needs the opening one side installing hole; Defective be the stopple that is used to be incubated length is longer because diameter is little, cause fragile softer hole periphery insulation material when installing and changeing, and convenient inadequately.To cause that to run heat, power consumption and temperature uneven and influence product quality and stopple is can not be fine in place.
Summary of the invention
The object of the invention just provides a kind of above-mentioned deficiency of the prior art that overcomes, and realizes the electric heating body that intensity is good, the heat efficiency is high, thermal uniformity good, the life-span is long, convenient for installation and maintenance.
Realize through following approach during the technical scheme of the utility model; It contains resistance wire, corundum sleeve pipe, refractory brick, stopple, insulation material, furnace shell, insulation board, eduction rod; Wherein, resistance wire is for being wrapped in two U type double spiral wounded resistance silks on the hollow corundum sleeve pipe parallel to each other respectively; The end of U type double spiral wounded resistance silk is turned back to the other end in the chamber of hollow corundum sleeve pipe respectively, forms two parallel eduction rods; Corundum sleeve pipe one end has U type groove, is embedded on the refractory brick respectively; Fill insulant material between refractory brick and the furnace shell; Be with stopple on the eduction rod, and eduction rod and stopple are fixed on the furnace shell through insulation board.
The U type double-spiral structure of the electric heating body that the utility model is described is more stable, is supported by smooth corundum sleeve pipe, and the resistance that is heated when stretching is little, and heat transferred is fast, can realize that intensity is good, the heat efficiency is high, thermal uniformity good, the life-span is long, convenient for installation and maintenance.
Description of drawings
Accompanying drawing is the structural representation of the utility model
Wherein: U type double spiral wounded resistance silk 1, corundum sleeve pipe 2, refractory brick 3, stopple 4, insulation material 5, furnace shell 6, insulation board 7, eduction rod 8, U type groove 9.
Embodiment
Describe the embodiment of the utility model in detail below in conjunction with accompanying drawing.
The utility model contains resistance wire, corundum sleeve pipe 2, refractory brick 3, stopple 4, insulation material 5, furnace shell 6, insulation board 7, eduction rod 8, and wherein, resistance wire is for being wrapped in two U type double spiral wounded resistance silks 1 on the hollow corundum sleeve pipe 2 parallel to each other respectively; The end of U type double spiral wounded resistance silk 1 is turned back to the other end in the chamber of hollow corundum sleeve pipe 2 respectively, forms two parallel eduction rods 8; One end of corundum sleeve pipe 2 has U type groove 9, is embedded in respectively on the refractory brick 3; Fill insulant material 5 between refractory brick 3 and the furnace shell 6; Be with stopple 4 on the eduction rod 8, and eduction rod 8 is fixed on the furnace shell 6 through insulation board 7 with stopple 4.
Claims (1)
1. an electric heating body contains resistance wire, corundum sleeve pipe (2), refractory brick (3), stopple (4), insulation material (5), furnace shell (6), insulation board (7), eduction rod (8), it is characterized in that:
A) described resistance wire is for being wrapped in two U type double spiral wounded resistance silks (1) on the hollow corundum sleeve pipe (2) parallel to each other respectively;
B) end of U type double spiral wounded resistance silk (1) is turned back to the other end in the chamber of hollow corundum sleeve pipe (2) respectively, forms two parallel eduction rods (8);
C) corundum sleeve pipe (2) one ends have U type groove (9), are embedded in respectively on the refractory brick (3);
D) fill insulant material (5) between refractory brick (3) and the furnace shell (6);
E) be with stopple (4) on the eduction rod (8), and eduction rod (8) and stopple (4) are fixed on the furnace shell (6) through insulation board (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203322865U CN202206576U (en) | 2011-09-06 | 2011-09-06 | Electric heating body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203322865U CN202206576U (en) | 2011-09-06 | 2011-09-06 | Electric heating body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202206576U true CN202206576U (en) | 2012-04-25 |
Family
ID=45970666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203322865U Expired - Fee Related CN202206576U (en) | 2011-09-06 | 2011-09-06 | Electric heating body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202206576U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104602370A (en) * | 2015-03-01 | 2015-05-06 | 周玉翔 | Electric heating module of flash drying machine |
| CN104764315A (en) * | 2015-03-23 | 2015-07-08 | 李跃东 | Electric heat generating part of airflow drying machine |
| CN112427589A (en) * | 2020-10-29 | 2021-03-02 | 陕西长羽航空装备有限公司 | Press hammer anvil preheating device and method |
-
2011
- 2011-09-06 CN CN2011203322865U patent/CN202206576U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104602370A (en) * | 2015-03-01 | 2015-05-06 | 周玉翔 | Electric heating module of flash drying machine |
| CN104764315A (en) * | 2015-03-23 | 2015-07-08 | 李跃东 | Electric heat generating part of airflow drying machine |
| CN112427589A (en) * | 2020-10-29 | 2021-03-02 | 陕西长羽航空装备有限公司 | Press hammer anvil preheating device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120425 Termination date: 20140906 |
|
| EXPY | Termination of patent right or utility model |