Products
-
Self-limiting electric heating tape
-
Industrial electric blanket/removable flexible protective cover
-
Industrial frequency conversion electromagnetic heating system
-
Specialized accessories for electric trace heating systems
-
Electric insulation and installation of integrated materials
Skin effect electric heat tracing system
Key words:
Classification:
STS Collector Effect Long Distance Pipeline Temperature Maintenance/Heating System
Free consultation-Free design-Free delivery-Free guidance
- Description
-
- Commodity name: Skin effect electric heat tracing system
Skin effect electric heat tracing system
► summarize
Pipeline skin effect electric accompanying heat (heating) technology is the most recent years a new metal pipeline heating method, is a large-scale petrochemical and other enterprises heat transmission pipeline heating insulation of new technology, "SECT" is "SKINELECTRIC CORRENT TRACING SECT" is the abbreviation of "SKINELECTRIC CORRENT TRACING", which is translated as "Skin-collecting Effect Tracing Heat" and is abbreviated as SECT method in foreign countries. This kind of heating technology has the high efficiency, adapts all the long, medium and short distance metal liquid pipeline accompanies the heat and the heating, moreover has the safety and the reliability, the service life is long, the installation and the maintenance is convenient and so on the advantage, therefore widely uses in each kind of different nature liquid material pipeline accompanies the heat.
► principle
The principle of SECT is based on the "skin effect" and "neighborhood effect" of alternating current, due to the extremely strong magnetic conductivity of the steel tube, even at industrial frequency voltage will produce significant skin effect. The so-called skin effect, that is, when the alternating current through the carbon steel conductor current gradually tends to skin in the conductor surface of a phenomenon, and neighboring effect is - to pass the reverse and so on current between the electric body of a kind of electromagnetic phenomenon, in the heating pipe in the cable and the heat pipe through the electric current, the heating pipe on the current gradually tends to skin in the inner wall of the heating pipe, and it is the thin wall of the inner wall of the Joule heat to meet the heat trailing The need. Collects the skin effect electric accompanies the heat system to produce the Joule heat mainly comes from three parts.
1), collects the skin cable to energize, the carbon steel tube sends out the heat on is collects the skin electricity to accompany the heat system the main heat source.
2), carbon steel pipe internal cable heat.
3), carbon steel tube inside hysteresis loss produce part of the heat.
In a skin effect device, the insulated wire (SECT line) through the steel tube with strong magnetism and connected with the end of the steel tube, the first end of the steel tube and the insulated wire were connected with the zero line and phase line of the power supply, applying frequency or medium frequency AC voltage, the current through the wire and the steel tube to form a circuit to produce joule heat. Due to the size of the steel pipe, material, AC frequency there is a certain relationship between the alternating current is not uniformly flow through the cross-section of the steel pipe, but concentrated flow from its inner surface of a certain depth, the current density decreases according to the exponential law, in the outer surface of the steel pipe voltage and current is almost zero, it is very safe. Therefore, the SECT pipe can be welded directly to the conveying pipe to make it a highly efficient heat source, and the heat generated by the SECT pipe is rapidly transferred to the conveying pipe through the welded seam and heat-conducting mastic to play the role of accompanying heat.
► Technical characteristics
1、Strong adaptability
Adapt to all long, medium and short distance metal pipeline accompanied by heat and heating, applicable to different laying methods of pipeline and any place; such as: underground buried, underwater, ground overhead; applicable to the field or mine, factory, flammable and explosive places.
2、Wide range of application
It is suitable for the medium which is solidified at room temperature, and is heated into liquid transportation.
Applicable to room temperature viscosity is very high, difficult to flow, but after heating and easy to flow material pipeline, such as: thick oil, high condensate oil, fuel heavy oil, wax, etc.; for the requirements of isothermal heat tracing pipeline, such as pipeline distance is longer, the starting temperature is not easy to too high medium transportation; for intermittent transportation of high condensate, or viscous media.
3、Product characteristics
1）High power density and high accompanying temperature.
2）Collective skin effect accompanying heat system effectively maintains the temperature up to 230°, single maximum heat output is 150W/m.
3) Energy saving, high heating efficiency.
4) The labor frequency collects the skin effect to accompany the heat belongs to the isothermal heating method, does not appear the local overheating phenomenon, the heating efficiency is high, with the pipeline distance lengthens to raise the heating voltage can. Compared with the steam accompanies the heat, collects the skin effect to accompany the heat to consume the energy 231kg/km standard coal, uses the heat cycle or the steam to accompany the heat to consume the energy for 1813kg/km.
4、Safe and reliable
Collects the skin to accompany the heat to use the special cable, because collects the skin effect system itself to form the insulating structure, causes to accompany the heat the outer surface of the tube and the liquid pipe not to carry the electricity, the liquid pipe every kilometer to do a safety ground, the grounding resistance is not greater than 4Ω, guarantees that the liquid pipe is always the zero potential, achieves the safety and the reliability.
5, automation control realize temperature perfect control function: digital temperature closed loop, short circuit protection function, over-current protection function, circuit breaker protection function; soft shutdown soft start: minimize the impact on the device, prolong the service life of the device; flexible mode of operation: digital/liquid crystal display, convenient to realize man-machine dialogue; network design: realize remote wireless alarm, remote wireless monitoring;
6, the realization of segmented prefabrication, maintenance is convenient According to the process or liquid pipeline section structure, will accompany the heat pipe factory prefabricated or on-site segmented prefabrication processing, joints using welding casing way to connect, and oil pipeline welding, installation together. Outside with insulation layer and protective shell, both convenient construction, but also easy to ensure the quality of the project. If the process pipe section fails or the valve needs to be replaced, it is only necessary to dismantle the joints at both ends of the part that needs to be replaced and pull out the heat tracing cable to replace the parts. There is no need to dismantle the insulation and pipe fittings as a whole.
► schema
► Parameter performance
Serial number Item Polyvinyl Warp Plastic Fluoroplastic PFA High Temperature Fluoroplastic Steel Armored Skin Collecting Cable (Temperature resistance class 126℃) (Temperature resistance class 205℃) (Temperature resistance class 260℃) (Temperature resistance class 600℃) 1 Cable Model JFHCL1-J2 JFHCL1-J3 JFHCL1-J4 JFHCL1-J5 2 Nominal cross-sectional area 5-90 5-90 5-90 May 30 (mm²) 3 Insulation sheathing February 5 February 5 February 5 1 4 Power supply voltage 220-3500OV 220-35000v 220-35000V 220-35000V 5 Working Voltage(V) 0.5V-15KV 0.5V-15KV 0.5V-15KV 0.5V-6KV 6 Operating Frequency (Hz) 50-4000 50-4000 50-4000 50-4000 7 Insulation resistance at 20℃ not less than (MΩ ) 2500 2500 2500 2500 8 Breakdown test (KV) 15 15 15 15 9 Working temperature (℃) -40-110℃ -40-180℃ -40-230℃ 0-500°C 10 Overall pull-off force not less than (N) 20000 20000 20000 50,000 11 Minimum bending radius mm 260 260 260 260 12 Heating power (W/m) 3-270 3-270 3-270 3-90 ► Compared to other heat tracing
Serial number Characteristics Skin effect heating Cable heat tracing Electric Tropical Heat Tracing Steam tracing 1 Tracing distance long short Short Short (low end temperature) 2 Power supply points Few much more 3 Tracer power Large Small small Small 4 Tracer effect Good Average. General General 5 Heat Tracing Pipe Laying Direct welding Bundling Strapping Bundle 6 Automated control Convenient Many control points Many control points Unachievable 7 Maintenance Convenient Difficult Difficult Difficult 8 Local Tracer Fair Good. - Good. Okay. - Okay. Okay. - Okay. 9 Safety and Reliability Good Average. Average. Good 10 Construction costs Higher Higher Higher Low 11 Running Costs Low low Low High 12 Maintenance costs Low High High Low 13 Management Convenience Convenient Convenient Convenience 14 Service life 20-30 years 5-15 years 3-10 years 3-8 years 15 Underground pipelines Applicable Not applicable N/A Not applicable
► Scope of ApplicationAccording to the different substances of the liquid in the pipeline, the temperature maintained in the pipeline is required to be different, and the industrial frequency skin effect pipeline accompanying heat technology is mainly applied to the accompanying heat of the pipeline and the pipeline of the liquid or the solidified medium in the pipeline to be heated, melted, or the pipeline of the intermittent oil transmission. There are two ways of collecting skin inside the pipe and collecting skin outside the pipe.
1. oilfield, offshore platform: production pipeline, crude oil, steam pipeline, water pipe, pulse line, instrumentation, centralized station storage tower, long-distance pipeline. River bottom, lake bottom, submarine oil pipeline.
2. oil refining industry, distillation, hydrogenation cracking, coking, wax, vulcanization, asphalt, residual oil and other production pipelines; water pipes, pulse lines or meters, storage towers, liquid hydrocarbon storage towers.
3. petrochemical plants, chemical plants, fertilizer plants: production pipelines for benzene, styrene, polyethylene, chlorine, acrylic acid, acetic acid, ethylene glycol, benzaldehyde, synthetic fibers, nylon, dyed lacquers, resins, etc.; water mains, impulse lines or meters, storage towers, liquid hydrocarbon storage towers.
4. nuclear power plants: heavy water pipelines, water pipes, pulse lines and meters, storage towers, heavy water towers.
5. oil trading transfer stations: product storage towers, long-distance pipelines, cryogenic product tower bases and pipelines and water mains associated with the towers.
6. power plants: high-pressure water supply, sewage venting, steam, de-vaporization, high-pressure condensation, acid and alkali, storage of heavy oil ignition oil circuit and other pipelines; heavy oil pipelines, heavy oil towers, pulse lines and meters, water pipes, long-distance transmission lines, coal water slurry transport pipelines and so on.
7. Iron and steel plants: production lines, heavy oil, coal tar, bitumen and sulfur lines, water pipes, long-distance pipelines.
8. cement plants: furnace or kiln heavy oil lines, water pipes, pulse lines or meters, storage towers, heavy oil long-distance pipelines.
9. Another plastic processing plant, edible oil processing plant, chocolate processing plant, water supply plant, hotels and high-rise buildings, heavy engineering industry.
Skinning accompanied by heat: can be divided into two kinds of skinning outside the pipe and skinning inside the pipe. Above various types of pipeline transportation, can be used skin effect accompanied by heat.
Key words:- Skin effect electric heat tracing system
Previous Page
None
Next Page
Product Consulting
Related Products
national unified service hotline: 400-624-8818
Marketing Hotline: 86-022-87887111/87887222/87887333
Technical hotline: 86-022-23767222
Fax service: 86-022-26799118
Enterprise E-mail: ytl@yatalo.com.cn
Enterprise official website:www.yatalo.com
Marketing Exhibition Center: No. 111, Building 1, Beifangcheng District 2, Miyun Road, Nankai District, Tianjin (Yatailong Office Building)
Production R & D Address: Tianjin Binhai New Area Huayuan Industrial Park Haitai International Industrial Base
Micro-Blog
Website
Service Number
Subscription Number