CN207678022U - Multi-spot segmentation formula electric heating tube - Google Patents
Multi-spot segmentation formula electric heating tube Download PDFInfo
- Publication number
- CN207678022U CN207678022U CN201820021121.8U CN201820021121U CN207678022U CN 207678022 U CN207678022 U CN 207678022U CN 201820021121 U CN201820021121 U CN 201820021121U CN 207678022 U CN207678022 U CN 207678022U
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- armouring
- heating tube
- heating
- electric heating
- conductor
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Abstract
The utility model is related to a kind of multi-spot segmentation formula electric heating tubes, at least 2 groups of heater strips penetrate after linking into an integrated entity respectively with conductor series connection in insulation filler, armouring shell is socketed outside insulation filler, conductor both ends are stretched out armouring shell and are connect with power cord, in armouring shell after the part undergauge without heater strip, it is folded to form the U-shaped heating tube of multisection type heating armouring.More thermocouples are also installed in the electric heating tube threading of the multi-spot segmentation formula function, in casing.The utility model is connected using multistage heating silk with conductor series connection, and axial size can be done smaller, and only single structure, conductor both ends connect power supply in armouring, and this structure multisection type heating armouring outer diameter can accomplish 2mm or less.By controlling the resistance value and fever length of the heater strip of heating region, keeps the heating region range of the heating region of multistage and heating temperature almost the same, by adjusting input current, keep heating temperature controllable and constant.
Description
Technical field
The utility model is related to a kind of heating tube, especially a kind of electric heating tube with multi-spot segmentation formula function, and can
To measure liquid level.
Background technology
The pressure vessels such as nuclear power presurized water reactor, chemical plant installations need to use the liquid level sensor of high reliability at present, now very
The method for mostly using electric heater for heating galvanic couple to measure liquid level, such as patent publication No. CN102200462A, CN102982853A,
CN1477648A.Part load is limited or the factors such as electric heating tube energy limits by installation space, it is necessary to electric heating tube and
Liquid level sensor size and heat energy are smaller, therefore just need a kind of novel electric heating tube.
Invention content
The technical issues of the utility model is solved be：There is provided a kind of outer diameter the smaller electricity with multi-spot segmentation formula function
Heating tube, mating thermocouple can be used as liquid level sensor.
Technical solution adopted in the utility model is：A kind of multi-spot segmentation formula electric heating tube, including armouring shell, insulation
Filler, conductor, heater strip, at least 2 groups of heater strips penetrate after linking into an integrated entity respectively with conductor series connection in insulation filler, absolutely
Armouring shell is socketed outside edge filler, conductor both ends are stretched out armouring shell and connect with power cord, without heater strip in armouring shell
After the undergauge of part, it is folded to form the U-shaped heating tube of multisection type heating armouring.
More thermocouples are also installed in the electric heating tube threading of the multi-spot segmentation formula function, in casing.
The thermocouple is branched single-point type or a multi-point hot galvanic couple, and thermocouple is attached to multi-spot segmentation formula function
Electric heating tube in outside each heating part.
The insulation filler material is magnesia, aluminium oxide or silica.
The utility model has the beneficial effects that：
1, multistage heating silk is connected with conductor series connection, and axial size can be done smaller, there was only single knot in armouring
Structure, conductor both ends connect power supply, this structure multisection type heating armouring outer diameter can accomplish 2mm hereinafter, this be other structures without
What method was accomplished.
2, the method that armouring without heater strip section uses diameter reduced, armouring shell and conductor become smaller after undergauge, can make
Smaller that bending radius becomes, be easy to heater bend to it is U-shaped, so as to which U-shaped heating tube is put into internal diameter less than 6mm diameters
A multipoint thermocouple or branched single-point thermocouple can be put into casing, in casing, for measuring liquid level.
3, the energy of the electric heater for heating of the small multi-spot segmentation formula function of diameter is smaller, compares concentration, for test solution
The temperature of body medium will not cause significantly to rise.
4. Conventional heaters are to be covered with heating wire inside entire armouring to be heated, and this heater is armouring part
It generates heat, by controlling the resistance value and fever length of the heater strip of heating region, makes the heating region of the heating region of multistage
Range and heating temperature are almost the same, by adjusting input current, keep heating temperature controllable and constant.
Description of the drawings
Fig. 1 is the multi-spot segmentation formula electric heating tube structural schematic diagram of the utility model；
Fig. 2 is installation multi-spot segmentation formula electric heating tube and thermocouple schematic diagram in casing；
Fig. 3 is the right view of Fig. 2.
Specific implementation mode
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of electric heating tube with multi-spot segmentation formula function, including armouring shell 1, insulation filler 2,
Conductor 3, heater strip 4.
4 both ends of heater strip are connect with conductor 3 respectively, can use the methods of welding or structure connection, the quantity root of heater strip 4
It requires be 2 groups to multigroup, is penetrated in insulation filler 2 after heater strip 4 and conductor 3 are connected, absolutely according to number of fragments
2 material of edge filler is the common mineral materials such as magnesia, aluminium oxide or silica, then steel pipe is through at insulation filler
Outside 2, the armouring shell 1 for being drawn into sheathed structure is carried out.The armouring shell 1 for not wearing heater strip need to be subjected to undergauge processing, processing
The exposing of conductor 3 at armouring both ends is connect power cord by doubling again afterwards.
Such as Fig. 2, shown in 3, by 5 threading of electric heating tube and Duo Gen thermocouples of above-mentioned ready-made multi-spot segmentation formula function
In 6, wherein thermocouple 5 can be branched single-point type or a multipoint mode, and thermocouple can be posted outside each heating part.
The U-shaped heating pipe outside diameter of multisection type heating armouring can accomplish 2mm or less.The armouring of no heater strip section uses undergauge
The method of formula, armouring shell and conductor become smaller after undergauge, and the smaller that bending radius can be made to become is easy to heater and bends to U
Type can be put into a multiple spot thermoelectricity so as to which U-shaped heating tube is put into internal diameter less than in the casing of 6mm diameters in casing
Occasionally branched single-point thermocouple, for measuring liquid level.
Conventional heaters are to be covered with heating wire inside entire armouring to be heated, and multi-spot segmentation formula electric heating tube is armour
Dress part generates heat, and by controlling the resistance value and fever length of the heater strip of heating region A and heating region B, makes multistage
The heating region range and heating temperature of heating region are almost the same, by adjusting input current, keep heating temperature controllable and permanent
It is fixed.
Level gauging principle：By adjusting input current, heating temperature is made to be slightly higher than the temperature of medium, heating region
Temperature is stablized, and variation is small.When electric heating tube is inserted into fluid media (medium), because heating position energy is smaller, compare concentration, for liquid
The temperature of body medium will not cause significantly to rise, and heating temperature is scattered away by fluid, be attached to the thermocouple of heating region at this time
The temperature for measuring display is the temperature of fluid media (medium).When the liquid level of fluid media (medium) is less than heating region, then heating region is attached to
The temperature that shows of thermocouple be that the temperature of heating region passes through since the temperature of heating region is higher than the temperature of fluid media (medium)
Observation is attached to the temperature change of different heat region thermocouple, carries out level gauging, and by set different liquid level sections (be equal to
The insertion depth of the different heat section of heater) instruction information, then row adjust the liquid level of fluid media (medium), make up to normal
The requirement of work improves safety.It can replace the container of certain high temperature and pressure that cannot use conventional liquid level gauge.
Claims (4)
1. a kind of multi-spot segmentation formula electric heating tube, including armouring shell, insulation filler, conductor, heater strip, it is characterised in that：
At least 2 groups of heater strips penetrate after linking into an integrated entity respectively with conductor series connection in insulation filler, and armouring is socketed outside insulation filler
Shell, conductor both ends are stretched out armouring shell and are connect with power cord, in armouring shell after the part undergauge without heater strip, are folded to form
Multisection type heats the U-shaped heating tube of armouring.
2. multi-spot segmentation formula electric heating tube according to claim 1, it is characterised in that：The electricity of the multi-spot segmentation formula function
More thermocouples are also installed in heating tube threading, in casing.
3. multi-spot segmentation formula electric heating tube according to claim 2, it is characterised in that：The thermocouple is branched single-point type
Or a multi-point hot galvanic couple, and thermocouple is attached in the electric heating tube of multi-spot segmentation formula function outside each heating part.
4. multi-spot segmentation formula electric heating tube according to claim 1, it is characterised in that：The insulation filler material is oxygen
Change magnesium, aluminium oxide or silica.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820021121.8U CN207678022U (en) | 2018-01-05 | 2018-01-05 | Multi-spot segmentation formula electric heating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820021121.8U CN207678022U (en) | 2018-01-05 | 2018-01-05 | Multi-spot segmentation formula electric heating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207678022U true CN207678022U (en) | 2018-07-31 |
Family
ID=62973297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820021121.8U Active CN207678022U (en) | 2018-01-05 | 2018-01-05 | Multi-spot segmentation formula electric heating tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207678022U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109903940A (en) * | 2019-02-25 | 2019-06-18 | 湖南福德电气有限公司 | A kind of water-cooled resistor with thermocouple mounting structure |
| CN113556837A (en) * | 2021-07-29 | 2021-10-26 | 无锡大洋高科热能装备有限公司 | Integrally-formed armored heating belt and manufacturing method thereof |
| CN114828313A (en) * | 2022-03-31 | 2022-07-29 | 绍兴市上虞华泰自动化仪表有限公司 | Armored heater suitable for various heating powers |
| WO2023039725A1 (en) * | 2021-09-14 | 2023-03-23 | 国家电投集团电站运营技术（北京）有限公司 | Radiant tube heating system |
| CN116981119A (en) * | 2023-07-28 | 2023-10-31 | 浙江创特新材科技有限公司 | Prefabricated heating block, heating module and high-strength filament tungsten wire drawing equipment |
-
2018
- 2018-01-05 CN CN201820021121.8U patent/CN207678022U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109903940A (en) * | 2019-02-25 | 2019-06-18 | 湖南福德电气有限公司 | A kind of water-cooled resistor with thermocouple mounting structure |
| CN113556837A (en) * | 2021-07-29 | 2021-10-26 | 无锡大洋高科热能装备有限公司 | Integrally-formed armored heating belt and manufacturing method thereof |
| CN113556837B (en) * | 2021-07-29 | 2024-04-12 | 无锡大洋高科热能装备有限公司 | Integrally formed armored heat tracing belt and manufacturing method thereof |
| WO2023039725A1 (en) * | 2021-09-14 | 2023-03-23 | 国家电投集团电站运营技术（北京）有限公司 | Radiant tube heating system |
| CN114828313A (en) * | 2022-03-31 | 2022-07-29 | 绍兴市上虞华泰自动化仪表有限公司 | Armored heater suitable for various heating powers |
| CN116981119A (en) * | 2023-07-28 | 2023-10-31 | 浙江创特新材科技有限公司 | Prefabricated heating block, heating module and high-strength filament tungsten wire drawing equipment |
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