CN203823334U - Single-core serial electric heat tracing system with ferromagnetic pipes - Google Patents
Single-core serial electric heat tracing system with ferromagnetic pipes Download PDFInfo
- Publication number
- CN203823334U CN203823334U CN201420100942.2U CN201420100942U CN203823334U CN 203823334 U CN203823334 U CN 203823334U CN 201420100942 U CN201420100942 U CN 201420100942U CN 203823334 U CN203823334 U CN 203823334U
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- China
- Prior art keywords
- ferromagnetic
- pipeline
- single core
- serial electric
- tracing system
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Abstract
The utility model relates to a single-core serial electric heat tracing system with ferromagnetic pipes. The single-core serial electric heat tracing system with the ferromagnetic pipes comprises a heated pipe (1) and is characterized in that three parallel ferromagnetic pipes (5) are uniformly arranged on the outer side wall of the heated pipe (1), three single-core serial electric heating bands (2) are respectively arranged in the three ferromagnetic pipes (5) in a penetrating way, the ends of the three single-core serial electric heating bands (2) are connected with a power supply box (3), the other ends of the three single-core serial electric heating bands (2) are connected with a tail end box (4), the three ferromagnetic pipes (5) are tied and connected with the heated pipe (1), and heat conducting cement (7) is embedded between the heated pipe (1) and the ferromagnetic pipes (5). Therefore, under the situations that length of the heated pipe is reduced and a heat tracing medium is required to be quickly unfrozen at key positions of a pipe inlet, the single-core serial electric heat tracing system with the ferromagnetic pipes can realize output power adjustment.
Description
Technical field
The utility model relates to a kind of single core serial electric tracing system with ferromagnetic pipeline.
Background technique
Electrical tracing is widely used as a kind of effective pipeline (storage tank) insulation and measures of prevent freezing always.Its working principle is to distribute certain heat by companion's hot media, by direct or indirect heat exchange, supplements by the loss in TRACER road, to reach intensification, insulation or antifreeze normal job requirement.
Referring to Fig. 1 ~ Fig. 3, traditional single core serial electric tracing system comprises a velamen heating pipe 1, three single core series electrical heating tape 2(A phases, B phase and C phases on the outer side wall that is heated pipeline 1, have been evenly arranged), one end of three single core series electrical heating tapes 2 connects power box 3, the other end of three single core series electrical heating tapes 2 connects tail end box 4, single core serial electric tracing system of traditional design is three-phase star pure resistive loads, therefore design imposes on load terminal voltage all for real impedance, by joule's law, output electric work is all converted into heat energy.
Traditional design list core series electrical heating tape passes in threephase AC situation, and there is uniform heart yearn resistance value R every single core series electrical heating tape as a phase load, and according to joule's law, the heart yearn of every single core series electrical heating tape is Joule heat P=I by electric energy conversion
2r, because single core series electrical heating tape is along the equidistant even wiring of pipeline, so per unit length heating tape heating power is constant, is heated pipeline and with single core series electrical heating tape, heat exchange occurs equably.
The heart yearn heating cross section of single core series electrical heating tape and length and power distribution control system are all according to operating mode, to design and produce in advance, as random prolongation or brachymemma heat tape length all can greatly have influence on, set electric heating system parameters, therefore general series electrical heating tape can not extend easily uses, especially can not surpass design load brachymemma use.
When practice of construction, need for some reason brachymemma heat tape when adapting to pipe laying length, due to heating cable heart yearn resistance decreasing, in the time can not doing relevant voltage adjustment to power distribution control system, must in loop, by increasing the way of impedance, reduce unit length heating cable electric power.Conventional with being connected in series current-limiting resistor voltage divider or adding choke coil method no doubt available, but can have influence on the decline of electric tracer heating system increase of investment and power-efficient.
Change due to operating mode, such as the actual duct length that is heated is compared with design and shortened, accompanies thermal medium to need quick-thawing etc. at entrance key position, need to do according to working conditions change the power adjustment adapting, therefore in the situation that can not changing existing single core serial electric tracing system distribution control section, make full use of current material, in work progress, by the single core series electrical heating tape to partial portion, lay and do suitable variation, can realize and adjust particularly important to single core serial electric tracing system output power.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of and shortens, accompanies thermal medium in the situation that entrance key position needs quick-thawing, can realize the single core serial electric tracing system with ferromagnetic pipeline that output power is adjusted being heated duct length.
The purpose of this utility model is achieved in that
A kind of single core serial electric tracing system with ferromagnetic pipeline, it comprises a velamen heating pipe, on the outer side wall of pipeline, be evenly arranged three parallel ferromagnetic pipelines being heated, in three ferromagnetic pipelines, wear respectively three single core series electrical heating tapes, one end of three single core series electrical heating tapes connects power box, the other end of three single core series electrical heating tapes connects tail end box, three ferromagnetic pipelines be heated pipeline colligation and be connected, be heated and between pipeline and ferromagnetic pipeline, inlay heat conduction cement.
Compared with prior art, the beneficial effects of the utility model are:
The utility model because of ferromagnetic pipeline resistance and inductance value proportional with duct length, pass through electromagnetic induction, in ferromagnetic pipeline and pipe, heat tape acting in conjunction is generated heat to the external world, the heart yearn resistance that can effectively offset existing electric tracer heating system reduces to cause the excessive phenomenon of specific power and is able to selectivity to correct because of length, can also be to the extra effect of having thawed that heats up of the medium of privileged site.Therefore should shorten, accompany thermal medium can realize output power adjustment in the situation that entrance key position needs quick-thawing being heated duct length with single core serial electric tracing system of ferromagnetic pipeline.
Accompanying drawing explanation
Fig. 1 is that schematic diagram is laid in the ribbon heater of traditional single core serial electric tracing system.
Fig. 2 is the three-phase constant-power Y shape load wiring schematic diagram of traditional single core serial electric tracing system.
Fig. 3 is the load schematic diagram of traditional single core serial electric tracing system.
Fig. 4 is that the utility model is laid schematic diagram with the ribbon heater of single core serial electric tracing system of ferromagnetic pipeline.
Fig. 5 is that the utility model is with the three-phase constant-power Y shape load wiring schematic diagram of single core serial electric tracing system of ferromagnetic pipeline.
Fig. 6 is that the utility model is with the load schematic diagram of single core serial electric tracing system of ferromagnetic pipeline.
Wherein:
The resistance that is heated pipeline 1, single core series electrical heating tape 2, power box 3, tail end box 4, ferromagnetic pipeline 5, clip 6, heat conduction cement 7, single core series electrical heating tape is that R, ferromagnetic pipeline resistance are that r, ferromagnetic pipeline loop inductance are L.
Embodiment
Referring to Fig. 4 ~ Fig. 6, a kind of single core serial electric tracing system with ferromagnetic pipeline that the utility model relates to, it comprises a velamen heating pipe 1, on the outer side wall that is heated pipeline 1, be evenly arranged three parallel ferromagnetic pipelines 5, three ferromagnetic pipelines 5 are interior wears respectively three single core series electrical heating tape 2(A phases, B phase and C phases), the other end that one end of three single core series electrical heating tapes 2 connects 3, three single core series electrical heating tapes 2 of power box connects tail end box 4.
For strengthening heat transfer radiating effect, the clip 6 of ferromagnetic pipeline 5 use certain intervals be heated pipeline 1 colligation (mode that also can use electric welding spot welding be heated pipeline 1 be connected), clip 6 is preferably stainless steel lathe dog; Employing is inlayed heat conduction cement 7 being heated between the gap that pipeline 1 contacts with ferromagnetic pipeline 5; For reducing ferromagnetic pipeline 5 inwall induced current densities, ferromagnetic pipeline 5 design wall thicknesses adopt and are not less than 3 times to the pipeline of electric current skin effect thickness.For guaranteeing security of system, design every ferromagnetic pipeline 5 use band irons and force ground connection; Ferromagnetic pipeline 5 is preferably the combination (6 meters of customized lengths seamless steel pipes combinations that every ferromagnetic pipeline section is some) of ferromagnetic pipeline section, leaves poling and the system overhaul that the spacing of 0.4 ~ 0.6 meter is beneficial to single core series electrical heating tape 2 and safeguard between adjacent ferromagnetic pipeline section.
Working principle:
This list core serial electric tracing system can shorten, accompany thermal medium can realize output power adjustment in the situation that entrance key position needs quick-thawing being heated duct length, and described measure comprises: distribution control section (constant); Actual single core series electrical heating tape laying construction length (adjusting length after brachymemma) is demarcated, is selected the seamless steel pipe of correlation length and specification and calculates and appraise and decide power, the necessary supporting heat insulation layer thickness of region of interest etc. of correcting.
Power box inlet wire termination threephase AC, three single core series electrical heating tapes of outlet termination, at the ferromagnetic pipeline of the many design specifications of privileged site serial connection of three single core series electrical heating tapes and be laid in and be heated on pipeline by even spaced and parallel, finally using three single core series electrical heating tapes in tail end box and connect as the O point of three-phase Y type connection circuit.
By wear the ferromagnetic pipeline of certain length outside single core series electrical heating tape, pass through electromagnetic induction, allow ferromagnetic pipeline hysteresis effect and eddy current produce power consumption with heat energy form be released in be heated pipeline can selection part on, can effectively utilize existing electric tracer heating system, revise both systematic designs and actual deviation.
According to cable laying regulation, single core cable originally does not allow to penetrate in ferromagnetic pipeline, in order to avoid produce eddy current effect; The utility model just in time will utilize its heating principle to accompany heat together with single core series electrical heating tape.
After system is improved, because of ferromagnetic pipeline resistance and inductance value proportional with duct length, pass through electromagnetic induction, in ferromagnetic pipeline and pipe, heat tape acting in conjunction is generated heat to the external world, the heart yearn resistance that can effectively offset existing electric tracer heating system reduces to cause the excessive phenomenon of specific power and is able to selectivity to correct because of length, can also be to the extra effect of having thawed that heats up of the medium of privileged site.
Claims (1)
1. the single core serial electric tracing system with ferromagnetic pipeline, it comprises a velamen heating pipe (1), it is characterized in that being evenly arranged three parallel ferromagnetic pipelines (5) on the outer side wall that is heated pipeline (1), in three ferromagnetic pipelines (5), wear respectively three single core series electrical heating tapes (2), one end of three single core series electrical heating tapes (2) connects power box (3), the other end of three single core series electrical heating tapes (2) connects tail end box (4), three ferromagnetic pipelines (5) be heated pipeline (1) colligation and be connected, be heated between pipeline (1) and ferromagnetic pipeline (5) and inlay heat conduction cement (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100942.2U CN203823334U (en) | 2014-03-07 | 2014-03-07 | Single-core serial electric heat tracing system with ferromagnetic pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100942.2U CN203823334U (en) | 2014-03-07 | 2014-03-07 | Single-core serial electric heat tracing system with ferromagnetic pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203823334U true CN203823334U (en) | 2014-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420100942.2U Expired - Fee Related CN203823334U (en) | 2014-03-07 | 2014-03-07 | Single-core serial electric heat tracing system with ferromagnetic pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203823334U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105472802A (en) * | 2015-12-22 | 2016-04-06 | 沈阳中合热源装备有限公司 | Electromagnetic heat tube |
| CN105636256A (en) * | 2016-03-15 | 2016-06-01 | 华能无锡电热器材有限公司 | High-temperature and high-pressure resistant electrical heater employing skin effect |
-
2014
- 2014-03-07 CN CN201420100942.2U patent/CN203823334U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105472802A (en) * | 2015-12-22 | 2016-04-06 | 沈阳中合热源装备有限公司 | Electromagnetic heat tube |
| CN105636256A (en) * | 2016-03-15 | 2016-06-01 | 华能无锡电热器材有限公司 | High-temperature and high-pressure resistant electrical heater employing skin effect |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20170307 |