CN2580720Y - Sleeve type electric heating element - Google Patents
Sleeve type electric heating element Download PDFInfo
- Publication number
- CN2580720Y CN2580720Y CN 02282173 CN02282173U CN2580720Y CN 2580720 Y CN2580720 Y CN 2580720Y CN 02282173 CN02282173 CN 02282173 CN 02282173 U CN02282173 U CN 02282173U CN 2580720 Y CN2580720 Y CN 2580720Y
- Authority
- CN
- China
- Prior art keywords
- heating element
- electric heating
- heating elements
- electrical heating
- heating wire
- 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 - Lifetime
Links
- 238000005485 electric heating Methods 0.000 title abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 48
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000012856 packing Methods 0.000 claims description 14
- 210000002445 nipple Anatomy 0.000 claims description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 238000005253 cladding Methods 0.000 abstract 2
- 239000000945 filler Substances 0.000 abstract 2
- 230000003749 cleanliness Effects 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 210000004907 gland Anatomy 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910000833 kovar Inorganic materials 0.000 description 1
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- Resistance Heating (AREA)
Abstract
The utility model belongs to an electric heating element specifically discloses a bushing type electric heating element, it includes by the metal cladding pipe, arranges the insulating filler in the metal cladding pipe in, sets up the heating wire in insulating filler, the electric heating element stick that cable conductor and heating wire cold junction head that link to each other with the heating wire are constituteed, the electric heating element stick still is equipped with the sleeve pipe that is formed by screwed joint, straight tube and end cap welding outward, the electric heating element stick passes through gland nut, sealing ring and lens pad and bushing. Because of adopting bushing type, lens pad seal structure and threaded connection mode, use safe and reliable, easy dismounting can carry out quick replacement to the component. The utility model discloses can be used to the high temperature high pressure environment in trades such as nuclear power, chemical industry or to the environment that has very high requirement by the heating medium cleanliness.
Description
Technical field
The utility model belongs to a kind of electrical heating elements, is specifically related to a kind of bushing type electrical heating elements.
Background technology
Nuclear power commonly used or civilian electrical heating elements are generally the direct-immersion type electrical heating elements, no outer sleeve, and electrical heating elements adopts Welding Structure with being connected of equipment.As disclosed a kind of " the miniature armoured electric heating element of outgoing wire at one end " among the Chinese patent ZL00249183.4, this electrical heating elements comprises metal tube, places insulating packing, two heating wire in the metal tube to be set in parallel in the insulating packing, outer with the drawing metal tube respectively lead-in wire of one end of two heating wire is connected, and the other end links to each other in insulating packing.This electrical heating elements has following defective: 1, in use as breaking, the inner insulating packing of electrical heating elements rod may pollute heated medium; When 2, electrical heating elements is changed, must adopt means such as cutting, welding could change element, element disassembling, assembling and replacing difficulty the heated medium emptying.
Summary of the invention
The purpose of this utility model is to provide a kind of bushing type electrical heating elements of safe and reliable, easy accessibility.
The technical solution of the utility model is as follows: a kind of bushing type electrical heating elements, comprise by the metal casing pipe, place insulating packing in the metal casing pipe, be arranged on the electrical heating elements rod that the heating wire in the insulating packing, the cable that links to each other with heating wire and heating wire cold junction end socket are formed, simultaneously, outside the electrical heating elements rod, also be provided with the sleeve pipe that is welded by nipple, straight tube and plug, the electrical heating elements rod inserts in the sleeve pipe, is connected with sleeve pipe by clamp nut, sealing ring, German-style metal lensring.
Advantage of the present utility model is: 1, owing to adopt the sealing function of sleeve type structure and German-style metal lensring, damaged even the electrical heating elements rod takes place, insulating packing wherein can not pollute heated medium yet; 2, the disassembling, assembling and replacing of electric heating element rod is convenient, as long as clamp nut is backed out, just can directly change the electrical heating elements rod.
Description of drawings
Fig. 1 is a bushing type electrical heating elements structural representation.
Among the figure: 1 electrical heating elements rod, 2 clamp nuts, 3 sealing rings, 4 German-style metal lensrings, 5 sleeve pipes, 6 cables, 7 cold junction end sockets, 8 metal casing pipes, 9 insulating packings, 10 heating wire, 11 end sockets, 12 nipples, 13 straight tubes, 14 plugs
Embodiment
As shown in Figure 1, a kind of bushing type electrical heating elements, comprise by metal casing pipe 8, place insulating packing 9 in the metal casing pipe 8, be arranged on the electrical heating elements rod 1 that heating wire 10, the cable 6 that links to each other with heating wire 10 and heating wire cold junction end sockets 7 in the insulating packing 9 are formed, outside electrical heating elements rod 1, also be provided with the sleeve pipe 5 that is welded by nipple 12, straight tube 13 and plug 14, one end of straight tube 13 is a nipple 12, and the other end is a plug 14.Electrical heating elements rod 1 is directly inserted sleeve pipe 5, be connected with the nipple 12 of sleeve pipe 5 by clamp nut 2, sealing ring 3, German-style metal lensring 4.Sealing ring 3 is welded on the metal casing pipe 8 of element rod, and clamp nut 2 is enclosed within on the electrical heating elements rod metal casing 8 between sealing ring 3 and cold junction end socket 7.When electrical heating elements rod 1 needs to change, back out clamp nut 2 and can realize.The insulating packing 9 of electrical heating elements rod is 99.5% high purity magnesium oxide powder, to improve the insulating properties of element.Cold junction end socket 7 adopts the aluminium oxide ceramics end sockets, and it adopts kovar alloy to weld with the sealing of the metal casing pipe 8 of element rod.
The utility model can be used for high temperature and high pressure environment in the industries such as nuclear power station, chemical industry or the environment that the heated medium cleannes are had high requirements.
Claims (3)
1, a kind of bushing type electrical heating elements, comprise by metal casing pipe (8), place the insulating packing (9) in the metal casing pipe (8), be arranged on the heating wire (10) in the insulating packing (9), the electrical heating elements rod (1) that cable (6) that links to each other with heating wire (10) and heating wire cold junction end socket (7) are formed, it is characterized in that: outside electrical heating elements rod (1), also be provided with by nipple (12), the sleeve pipe (5) that straight tube (13) and plug (14) are welded, electrical heating elements rod (1) inserts in the sleeve pipe (5), by clamp nut (2), sealing ring (3), German-style metal lensring (4) is connected with sleeve pipe (5).
2, according to the said a kind of bushing type electrical heating elements of claim 1, it is characterized in that: said sealing ring (3) is welded on the metal casing pipe (8), and clamp nut (2) is enclosed within and is positioned on the metal casing pipe (8) between sealing ring (3) and the cold junction end socket (7).
3, a kind of bushing type electrical heating elements according to claim 1 and 2 is characterized in that: insulating packing (9) is the high purity magnesium oxide powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02282173 CN2580720Y (en) | 2002-11-01 | 2002-11-01 | Sleeve type electric heating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02282173 CN2580720Y (en) | 2002-11-01 | 2002-11-01 | Sleeve type electric heating element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2580720Y true CN2580720Y (en) | 2003-10-15 |
Family
ID=33744317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02282173 Expired - Lifetime CN2580720Y (en) | 2002-11-01 | 2002-11-01 | Sleeve type electric heating element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2580720Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296653C (en) * | 2005-02-06 | 2007-01-24 | 贺艺科 | Electrothermic pipe overheat steam boiler |
| CN101951705A (en) * | 2010-08-31 | 2011-01-19 | 广东格兰仕集团有限公司 | Heating pipe |
| CN102098816A (en) * | 2009-12-14 | 2011-06-15 | 霍特塞特电热元件和附件有限责任公司 | Electric cartridge heater with connecting circuit |
| CN102752887A (en) * | 2012-07-19 | 2012-10-24 | 镇江力帆防爆电器有限公司 | High-pressure detachable/replaceable anti-explosion electric heater assembly |
| CN102984838A (en) * | 2011-09-05 | 2013-03-20 | 中国核动力研究设计院 | Metal ball accumulation layer overall heating apparatus |
| CN103369749A (en) * | 2013-07-30 | 2013-10-23 | 苏州制氧机有限责任公司 | Electric heater tube plate connector of purification system in deep cold air separation equipment |
| CN103963252A (en) * | 2014-05-13 | 2014-08-06 | 于浩 | Electric heating rod for heating injection mold runner |
| CN106190181A (en) * | 2016-09-28 | 2016-12-07 | 南京工程学院 | A kind of revolution retort and variable bit temperature measuring equipment |
| CN107002998A (en) * | 2014-12-15 | 2017-08-01 | 罗伯特·博世有限公司 | Heater plug |
-
2002
- 2002-11-01 CN CN 02282173 patent/CN2580720Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296653C (en) * | 2005-02-06 | 2007-01-24 | 贺艺科 | Electrothermic pipe overheat steam boiler |
| CN102098816A (en) * | 2009-12-14 | 2011-06-15 | 霍特塞特电热元件和附件有限责任公司 | Electric cartridge heater with connecting circuit |
| CN101951705A (en) * | 2010-08-31 | 2011-01-19 | 广东格兰仕集团有限公司 | Heating pipe |
| CN102984838A (en) * | 2011-09-05 | 2013-03-20 | 中国核动力研究设计院 | Metal ball accumulation layer overall heating apparatus |
| CN102984838B (en) * | 2011-09-05 | 2015-04-29 | 中国核动力研究设计院 | Metal ball accumulation layer overall heating apparatus and its preparation method |
| CN102752887A (en) * | 2012-07-19 | 2012-10-24 | 镇江力帆防爆电器有限公司 | High-pressure detachable/replaceable anti-explosion electric heater assembly |
| CN102752887B (en) * | 2012-07-19 | 2015-04-29 | 镇江力帆防爆电器有限公司 | High-pressure detachable/replaceable anti-explosion electric heater assembly |
| CN103369749A (en) * | 2013-07-30 | 2013-10-23 | 苏州制氧机有限责任公司 | Electric heater tube plate connector of purification system in deep cold air separation equipment |
| CN103963252A (en) * | 2014-05-13 | 2014-08-06 | 于浩 | Electric heating rod for heating injection mold runner |
| CN107002998A (en) * | 2014-12-15 | 2017-08-01 | 罗伯特·博世有限公司 | Heater plug |
| CN106190181A (en) * | 2016-09-28 | 2016-12-07 | 南京工程学院 | A kind of revolution retort and variable bit temperature measuring equipment |
| CN106190181B (en) * | 2016-09-28 | 2021-11-02 | 南京工程学院 | A kind of rotary carbonization furnace and variable position temperature measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121101 Granted publication date: 20031015 |