CN109379790A - A kind of electric heater unit with long service life and preparation method thereof - Google Patents
A kind of electric heater unit with long service life and preparation method thereof Download PDFInfo
- Publication number
- CN109379790A CN109379790A CN201811373527.3A CN201811373527A CN109379790A CN 109379790 A CN109379790 A CN 109379790A CN 201811373527 A CN201811373527 A CN 201811373527A CN 109379790 A CN109379790 A CN 109379790A
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- CN
- China
- Prior art keywords
- heating tube
- shaped heating
- service life
- interlayer
- installation
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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
- H05B3/40—Heating elements having the shape of rods or tubes
-
- 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
- H05B3/02—Details
Abstract
Present invention discloses a kind of electric heater units with long service life and preparation method thereof, it includes cartridge heater, it is welded on the installation lower flange of cartridge heater upper end, the installation upper flange being sealedly and fixedly connected with installation lower flange, one end is welded on the interlayer set on installation upper flange and upwardly extended, it is covered through interlayer and is inserted into several U-shaped heating tubes inside cartridge heater, the connecting terminal of U-shaped heating tube end and the power supply unit with connecting terminal electrical connection are set, the other end of interlayer set and the end of U-shaped heating tube weld together, interlayer covers and is formed with the accommodating space being connected to the cartridge heater between U-shaped heating tube.The present invention can preferably protect connecting terminal to prevent being solved short and bad using the rear heating effect for a long time technical problem of heating tube service life by high-temperature oxydation；Manufacture craft difficulty is reduced, product quality is improved.
Description
[technical field]
The invention belongs to heating device technology areas, more particularly to a kind of electric heater unit with long service life and its system
Make method.
[background technique]
Temperature control in modern manufacturing industry using extremely wide, such as pharmacy, cosmetics reaction kettle, carbon fiber manufacture control
Warm field.Temperature control just be unable to do without heating device, and widely used is electric heating, in many organic heat carrier furnaces, mould
It is one of essential element in the equipment such as warm machine.Due to Environmental Factors, electric heating temperature control operation strategies are more and more wider, meanwhile, electricity adds
The use temperature range of thermal control temperature is also increasing, and superhigh temperature and ultralow temperature use environment also get over the quality requirements of electric heating tube
Come higher.Referring to FIG. 1, the U-shaped heating tube 1 ' in heating pipe device in the prior art is directly welded on mounting flange 2 ',
Connecting terminal 3 ' is arranged close to mounting flange 2 ' in the end of U-shaped heating tube 1 '.The structure uses temperature with electric heating temperature control
Become higher and higher, will affect the copper sheet of connecting terminal and the service life of cable, high temperature makes copper sheet oxidation lead to current-carrying capacity
Become smaller and causes quality problem.
In the prior art CN203968417U U-shaped heating tube close to connecting terminal one end be arranged thermal insulation board, but
Effect and bad is found in actual use, and heating tube needs are directly welded with mounting flange, welding requirements is very
Usually there is scrap of the product phenomenon caused by failure welding in height.
Therefore, it is necessary to provide new electric heater unit with long service life of one kind and preparation method thereof to solve above-mentioned ask
Topic.
[summary of the invention]
One of the objects of the present invention is to provide a kind of electric heater units with long service life, can preferably protect wiring
It is short and asked for a long time using the bad technology of rear heating effect that terminal prevents from being solved heating tube service life by high-temperature oxydation
Topic.
The present invention is achieved through the following technical solutions above-mentioned purpose: a kind of electric heater unit with long service life comprising
Cartridge heater, the installation lower flange for being welded on the cartridge heater upper end are installed with what the installation lower flange was sealedly and fixedly connected
Flange, one end are welded on the interlayer set on the installation upper flange and upwardly extended, cover through the interlayer and be inserted into described add
Several U-shaped heating tubes inside hot cylinder, the connecting terminal that the U-shaped heating tube end is set and with the connecting terminal electricity
The power supply unit of gas connection, the other end of the interlayer set and the end of the U-shaped heating tube weld together, the interlayer set
The accommodating space being connected to the cartridge heater is formed between the U-shaped heating tube.
Further, circulatory mediator to be heated is filled in the cartridge heater and the accommodating space.
Further, the spacing between the interlayer set and the U-shaped heating tube is 5-30mm.
Further, the outside of the connecting terminal, which is additionally provided with, is wrapped in the connecting terminal interior terminal box.
Further, the interlayer covers including sleeve body and is arranged in the egative film ontology of the sleeve body end,
The aperture passed through for the U-shaped heating tube is provided on the egative film ontology.
Further, weld together on one end outer surface of the interlayer set and the installation upper flange, at the other end
Realization sealing is welded together by the aperture inner ring and the U-shaped heating tube end.
Another main purpose of the invention is to provide a kind of production method of electric heater unit with long service life, wrap
Include following steps, 1) an interlayer set, installation a upper flange, a cartridge heater are provided, the cartridge heater upper end is provided under an installation
Flange；2) interlayer set is sealed welding with the installation upper flange；3) provide a U-shaped heating tube, and by this it is U-shaped plus
Heat pipe passes through the installation upper flange and is inserted into the interlayer set；4) other end for covering the interlayer and the U-shaped heating
Tube end welds together, so that the interlayer covers and forms the receipts being connected to the cartridge heater between the U-shaped heating tube
Hold space；5) the installation upper flange and the installation lower flange are connected and sealed.
It further, further include that connecting terminal is installed in the end of the U-shaped heating tube.
It further, further include being arranged a terminal box in the end of the U-shaped heating tube, the terminal box connects described
Line terminals Hide All is in the terminal box.
The prior art is compared, and a kind of beneficial effect of electric heater unit with long service life of the present invention and preparation method thereof exists
In:
1) stretch out the length of mounting flange by increasing U-shaped heating tube, and by the bringing-up section of heating tube and connecting terminal it
Between sandwich establishment set, using interlayer cover in static circulation cut-off be thermally shielded and radiate, guarantee that connecting terminal is in low temperature shape
State prevents the copper sheet temperature in connecting terminal excessively high and aoxidizes, to improve the service life of heating device；
2) by sandwich establishment set, and by remote in welding and interlayer set and heating tube of the interlayer set with mounting flange
One end from high-temperature region is welded, and is reduced welding procedure difficulty, is improved product quality and service life.
[Detailed description of the invention]
Fig. 1 is the structural schematic diagram of heating device in the prior art；
Fig. 2 is the structural schematic diagram of the embodiment of the present invention；
Fig. 3 is the partial structure diagram in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of interlayer set and installation upper flange in the embodiment of the present invention；
Digital representation in figure:
1 ' U-shaped heating tube；2 ' mounting flanges；3 ' connecting terminals；
100 electric heater units with long service life；
1 cartridge heater；2 installation lower flanges；3 installation upper flanges；4 interlayer sets, 41 sleeve bodies；42 egative film ontologies；43 apertures；
5U type heating tube；6 connecting terminals；7 power supply units；8 accommodating spaces；9 terminal boxes.
[specific embodiment]
Embodiment:
- Fig. 4 referring to figure 2., the present embodiment are a kind of electric heater unit 100 with long service life comprising cartridge heater 1,
It is welded on the installation lower flange 2 of 1 upper end of cartridge heater, the installation upper flange 3 being sealedly and fixedly connected with installation lower flange 2, one end weldering
Connect installation upper flange 3 on and upwardly extend interlayer set 4, through interlayer set 4 and be inserted into cartridge heater 1 inside it is several it is U-shaped add
Heat pipe 5, the connecting terminal 6 that U-shaped 5 end of heating tube is set and the power supply unit 7 being electrically connected with connecting terminal 6, interlayer
The other end of set 4 and the end of U-shaped heating tube 5 weld together, and interlayer covers to be formed with and cartridge heater between 4 and U-shaped heating tube 5
The accommodating space 8 of 1 connection.
The cartridge heater 1 is interior filled with circulatory mediator to be heated with accommodating space 8.Interlayer set 4 with U-shaped heating tube 5 it
Between spacing be 5-30mm, the present embodiment by setting one accommodating space 8 being connected to the cartridge heater of loader cycle medium, and
The accommodating space 8 is arranged very small, so that the circulatory mediator being filled in the accommodating space 8 is stationary state, is not involved in
Circulatory mediator circulates in cartridge heater 1, so that the circulatory mediator in accommodating space 8 can be between this section of heating tube
Heat exchange is carried out, recycles circulatory mediator to carry out heat with outside air by interlayer set 4 and exchanges, so that the heating tube of this section
Temperature will not be too high, will receive high temperature influence to effectively protect connecting terminal 6 not, to improve service life.
Interlayer set 4 includes sleeve body 41 and the egative film ontology 42 that 41 end of sleeve body is arranged in, the bottom
The aperture 43 passed through for the U-shaped heating tube 5 is provided on piece ontology 42.
Further, weld together on one end outer surface of the interlayer set 4 and the installation upper flange 3, the other end
Place welds together realization sealing by 43 inner ring of aperture and U-shaped 5 end of heating tube.
The outside of connecting terminal 6, which is additionally provided with, is wrapped in connecting terminal 6 interior terminal box 9.
In addition, the manufacture craft of the present embodiment electric heater unit with long service life and preparation method thereof 100 includes following
Step: being first sealed welding with interlayer set 4 and installation upper flange 3, and this welding requirements is low, while interlayer being allowed to cover 4 and installation
Upper flange 3 can seal more preferable；Then U-shaped heating tube 5 installation upper flange 3 is passed through to be inserted into interlayer set 4；By interlayer set
4 other end welds together with U-shaped 5 end of heating tube, since the pad is distant from high-temperature region, welding requirements
It is relatively low；Then installation upper flange 3 and installation lower flange 2 are connected and sealed；Wiring is installed in the end of U-shaped heating tube 5
Terminal 6.
By sandwich establishment set 4, the temperature near connecting terminal 6 is on the one hand effectively reduced, prevents it from being aoxidized
And influence performance；On the other hand, welding form is changed, original welded connecting is directly to carry out flange with heating pipe surface
Welding, since the tube wall of heating tube is relatively thin, and is chronically at hot environment, especially high to welding requirements, welds gimmick and electric current
It is more difficult to control, while relatively from high-temperature region to subsequent work phase, will cause the hidden danger as caused by Welding Problems, and
Existing manufacture craft is since the variation of structure changes weld locations and welding object, so that structure is stronger and steady
It is fixed, and the service life is longer；And by sandwich establishment set, and interlayer set is welded on one with ring flange using the form of welding
It rises, then interlayer is covered and is welded together with U-shaped heating tube end, the leakproofness inside cartridge heater is substantially increased.
A kind of beneficial effect of electric heater unit with long service life of the present embodiment and preparation method thereof 100 is: passing through
Increase the length that U-shaped heating tube stretches out mounting flange, and can be heat-insulated by setting between the bringing-up section and connecting terminal of heating tube
The interlayer sleeve of cooling reduces the temperature on connecting terminal periphery, prevents the copper sheet temperature in connecting terminal excessively high and aoxidize,
To improve the service life of heating device；The welding object for changing heating tube, reduces welding process requirement, improves and adds
Hot cylinder inner sealing, reduces manufacture difficulty, improves product quality.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (10)
1. a kind of electric heater unit with long service life, it is characterised in that: it includes cartridge heater, is arranged in the cartridge heater upper end
Installation lower flange, with the installation upper flange that is sealedly and fixedly connected of installation lower flange, one end be fixedly connected on the installation
On upper flange and upwardly extend interlayer set, cover and be inserted into inside the cartridge heater through the interlayer several U-shaped heating tubes,
The connecting terminal of the U-shaped heating tube end is set, and the other end of the interlayer set and one end of the U-shaped heating tube are welded
Together, the interlayer covers and is formed with the accommodating space being connected to the cartridge heater between the U-shaped heating tube.
2. electric heater unit with long service life as described in claim 1, it is characterised in that: the cartridge heater and the receiving
Circulatory mediator to be heated is filled in space.
3. electric heater unit with long service life as described in claim 1, it is characterised in that: the interlayer set with it is described U-shaped
Spacing between heating tube is 5-30mm.
4. electric heater unit with long service life as described in claim 1, it is characterised in that: the outside of the connecting terminal is also
It is provided with and the connecting terminal is wrapped in interior terminal box.
5. electric heater unit with long service life as described in claim 1, it is characterised in that: the interlayer set includes sleeve sheet
Body and the egative film ontology that the sleeve body end is arranged in are provided on the egative film ontology and wear for the U-shaped heating tube
The aperture crossed.
6. electric heater unit with long service life as claimed in claim 5, it is characterised in that: one end appearance of the interlayer set
Weld together on face and the installation upper flange, is welded at the other end by the aperture inner ring and the U-shaped heating tube end
Be connected together realization sealing.
7. electric heater unit with long service life as described in claim 1, it is characterised in that: further include and the connecting terminal
The power supply unit of electrical connection.
8. a kind of production method of electric heater unit with long service life, it is characterised in that: it includes the following steps comprising with
Lower step, 1) an interlayer set, installation a upper flange, a cartridge heater are provided, the cartridge heater upper end is provided with an installation lower flange；
2) interlayer set is sealed welding with the installation upper flange；3) a U-shaped heating tube is provided, and by the U-shaped heating tube
It is inserted into the interlayer set across the installation upper flange；4) other end for covering the interlayer and the U-shaped heating pipe end
Portion welds together, so that interlayer set and the receiving that formation one is connected to the cartridge heater between the U-shaped heating tube are empty
Between；5) the installation upper flange and the installation lower flange are connected and sealed.
9. the production method of electric heater unit with long service life as claimed in claim 8, it is characterised in that: further include in institute
State the end installation connecting terminal of U-shaped heating tube.
10. the production method of electric heater unit with long service life as claimed in claim 9, it is characterised in that: it is further,
It further include being arranged a terminal box in the end of the U-shaped heating tube, the terminal box exists the connecting terminal Hide All
In the terminal box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811373527.3A CN109379790A (en) | 2018-11-19 | 2018-11-19 | A kind of electric heater unit with long service life and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811373527.3A CN109379790A (en) | 2018-11-19 | 2018-11-19 | A kind of electric heater unit with long service life and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109379790A true CN109379790A (en) | 2019-02-22 |
Family
ID=65389760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811373527.3A Pending CN109379790A (en) | 2018-11-19 | 2018-11-19 | A kind of electric heater unit with long service life and preparation method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN109379790A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1862135A (en) * | 2006-05-29 | 2006-11-15 | 镇江裕太防爆电加热器有限公司 | Energy-saving explosion-proof electric heater |
| US20100059483A1 (en) * | 2008-09-11 | 2010-03-11 | Bruck Gerald J | Asymmetric heat sink welding using a penetration enhancing compound |
| CN202103879U (en) * | 2011-05-20 | 2012-01-04 | 江苏威能电气有限公司 | Explosion-proof electric heater |
| CN202907218U (en) * | 2012-11-07 | 2013-04-24 | 江苏威能电气有限公司 | Energy-efficient explosion-proof electric heater |
| CN203432087U (en) * | 2013-08-19 | 2014-02-12 | 镇江飞利达电站设备有限公司 | Thermal insulation structure of electric heater junction box |
| CN208075324U (en) * | 2018-04-08 | 2018-11-09 | 山东汇丰石化集团有限公司 | A kind of corrosive gas electric heater |
| CN209767845U (en) * | 2018-11-19 | 2019-12-10 | 苏州奥德机械有限公司 | Long service life's electric heater unit |
-
2018
- 2018-11-19 CN CN201811373527.3A patent/CN109379790A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1862135A (en) * | 2006-05-29 | 2006-11-15 | 镇江裕太防爆电加热器有限公司 | Energy-saving explosion-proof electric heater |
| US20100059483A1 (en) * | 2008-09-11 | 2010-03-11 | Bruck Gerald J | Asymmetric heat sink welding using a penetration enhancing compound |
| CN202103879U (en) * | 2011-05-20 | 2012-01-04 | 江苏威能电气有限公司 | Explosion-proof electric heater |
| CN202907218U (en) * | 2012-11-07 | 2013-04-24 | 江苏威能电气有限公司 | Energy-efficient explosion-proof electric heater |
| CN203432087U (en) * | 2013-08-19 | 2014-02-12 | 镇江飞利达电站设备有限公司 | Thermal insulation structure of electric heater junction box |
| CN208075324U (en) * | 2018-04-08 | 2018-11-09 | 山东汇丰石化集团有限公司 | A kind of corrosive gas electric heater |
| CN209767845U (en) * | 2018-11-19 | 2019-12-10 | 苏州奥德机械有限公司 | Long service life's electric heater unit |
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| CB02 | Change of applicant information |
Address after: Room 3 and 4, 228 Wulian Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Applicant after: Suzhou Aode high end equipment Co.,Ltd. Address before: Room 3 and 4, 228 Wulian Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Applicant before: SUZHOU AODE MACHINERY Co.,Ltd. |
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