Cop canal is to be used technically at carrying the conduit of the fluid such as oily, gas, water to use the be called by a joint name of steel tube. It is compose builds Sunday run the sources of energy to carry a network (conduit carries a system) core material.
One, what is cop canal?
Cop canalIt is the be called by a joint name that the pipeline that is used technically at carrying the fluid such as oily, gas, water uses steel tube. It is compose builds Sunday run the sources of energy to carry a network (conduit carries a system) core material.
As a result of its special utility, cop canal is rightIntensity, tenacity, solderabilityAndCorrosion resistance canHaving extremely firm demand.
2, the main characteristic of cop canal
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High strenth and tall tenacity: To bear high pressure is carried and exterior load (be like soil, car) , prevent crackle to expand, fall in microtherm environment especially.
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Exceedingly good solderability: Sunday run conduit solders by countless steel tube and become, good solderability is to assure construction efficiency, solder the key of quality and conduit whole sex.
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Good geometrical dimension precision: Assure the efficiency that speak or sing alternately solders and quality.
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Corrosion resistance can:
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Corrode inside: Resistance carries medium (if contain sulfur oil gas) corrode.
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Corrode outside: Of counteractive soil, groundwater corrode.
High strenth and tall tenacity: To bear high pressure is carried and exterior load (be like soil, car) , prevent crackle to expand, fall in microtherm environment especially.
Exceedingly good solderability: Sunday run conduit solders by countless steel tube and become, good solderability is to assure construction efficiency, solder the key of quality and conduit whole sex.
Good geometrical dimension precision: Assure the efficiency that speak or sing alternately solders and quality.
Corrosion resistance can:
Corrode inside: Resistance carries medium (if contain sulfur oil gas) corrode.
Corrode outside: Of counteractive soil, groundwater corrode.
Strict quality is controlled: Arrive from elt, rolling make a valve, whole production process needs to follow strict international or national standard (like API standard) .
3, ultimate cluster
1.By carry medium classification
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Petroleum pipeline: Transport crude oil or finished product oil.
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Be defeated tracheal: Transport natural gas. This is one of tall to material requirement domains, especially main to high pressure, large requirements pipeline.
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Be defeated by conduit: Carry water, include drinking water and industrial water.
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Oar body duct: Convey the mixture such as oar of ore pulp, coal, the wearability with extremely high demand.
2.Classify by workmanship (the technical classification that this is core)
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Without seam cop to be in charge of (SMLS)
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Workmanship: Wait for hot-working means production through perforative, rolling, whole does not have welding line.
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Advantage: Bear control capacity strong, mural thick uniformity is good, security is high.
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Defect: Cost is high, measurement standards suffers be restricted (large requirements is not had seam tubal difficult production) .
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Application: Basically use at high-pressured collect to be defeated by the fundamental situation of conduit, all-bore or large wall.
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Solder cop is in charge of (WELDED)
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Seam the solder that bury arc to be in charge of continuously (LSAW): Use board, welding line shows linear, use technology of the solder that bury arc. Its bear control capacity strong, it is the brunt of conduit of oil gas artery.
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Helix seams the solder that bury arc to be in charge of (SSAW / HSAW): Use metal strip, helix is curly shape, welding line shows corkscrewed yarn. Its flexibility is good, the metal strip of usable and same width produces the tubal material of different diameter, but bear control capacity normally slightly under LSAW.
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High frequency seam resistance welding to be in charge of continuously (ERW): Use metal strip, heat through high frequency electric current and pressurization solders, without fill metal. Basically use at in all-bore, medium low-pressure fluid is carried.
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UOE solder is in charge of: A kind of mainstream that is LSAW shapes welder art, quality is very stable.
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JCOE solder is in charge of: Another kind of LSAW craft that shapes stage by stage.
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Workmanship: armor plate or metal strip (call " board roll " ) curly solder to be in charge of. This is the mainstream of conduit of artery of Sunday run large requirements.
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Advantage: Cost efficiency of low, production is tall, producible exceed big diameter pipeline.
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Defect: Welding line is potential weak point.
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According to soldering technology differs, divide again it is two kinds big:
4, crucial material pledges with steel class
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Petroleum pipeline: Transport crude oil or finished product oil.
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Be defeated tracheal: Transport natural gas. This is one of tall to material requirement domains, especially main to high pressure, large requirements pipeline.
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Be defeated by conduit: Carry water, include drinking water and industrial water.
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Oar body duct: Convey the mixture such as oar of ore pulp, coal, the wearability with extremely high demand.
2.Classify by workmanship (the technical classification that this is core)
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Without seam cop to be in charge of (SMLS)
-
Workmanship: Wait for hot-working means production through perforative, rolling, whole does not have welding line.
-
Advantage: Bear control capacity strong, mural thick uniformity is good, security is high.
-
Defect: Cost is high, measurement standards suffers be restricted (large requirements is not had seam tubal difficult production) .
-
Application: Basically use at high-pressured collect to be defeated by the fundamental situation of conduit, all-bore or large wall.
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Solder cop is in charge of (WELDED)
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Seam the solder that bury arc to be in charge of continuously (LSAW): Use board, welding line shows linear, use technology of the solder that bury arc. Its bear control capacity strong, it is the brunt of conduit of oil gas artery.
-
Helix seams the solder that bury arc to be in charge of (SSAW / HSAW): Use metal strip, helix is curly shape, welding line shows corkscrewed yarn. Its flexibility is good, the metal strip of usable and same width produces the tubal material of different diameter, but bear control capacity normally slightly under LSAW.
-
High frequency seam resistance welding to be in charge of continuously (ERW): Use metal strip, heat through high frequency electric current and pressurization solders, without fill metal. Basically use at in all-bore, medium low-pressure fluid is carried.
-
UOE solder is in charge of: A kind of mainstream that is LSAW shapes welder art, quality is very stable.
-
JCOE solder is in charge of: Another kind of LSAW craft that shapes stage by stage.
-
Workmanship: armor plate or metal strip (call " board roll " ) curly solder to be in charge of. This is the mainstream of conduit of artery of Sunday run large requirements.
-
Advantage: Cost efficiency of low, production is tall, producible exceed big diameter pipeline.
-
Defect: Welding line is potential weak point.
-
According to soldering technology differs, divide again it is two kinds big:
4, crucial material pledges with steel class
Without seam cop to be in charge of (SMLS)
-
Workmanship: Wait for hot-working means production through perforative, rolling, whole does not have welding line.
-
Advantage: Bear control capacity strong, mural thick uniformity is good, security is high.
-
Defect: Cost is high, measurement standards suffers be restricted (large requirements is not had seam tubal difficult production) .
-
Application: Basically use at high-pressured collect to be defeated by the fundamental situation of conduit, all-bore or large wall.
Solder cop is in charge of (WELDED)
-
Seam the solder that bury arc to be in charge of continuously (LSAW): Use board, welding line shows linear, use technology of the solder that bury arc. Its bear control capacity strong, it is the brunt of conduit of oil gas artery.
-
Helix seams the solder that bury arc to be in charge of (SSAW / HSAW): Use metal strip, helix is curly shape, welding line shows corkscrewed yarn. Its flexibility is good, the metal strip of usable and same width produces the tubal material of different diameter, but bear control capacity normally slightly under LSAW.
-
High frequency seam resistance welding to be in charge of continuously (ERW): Use metal strip, heat through high frequency electric current and pressurization solders, without fill metal. Basically use at in all-bore, medium low-pressure fluid is carried.
-
UOE solder is in charge of: A kind of mainstream that is LSAW shapes welder art, quality is very stable.
-
JCOE solder is in charge of: Another kind of LSAW craft that shapes stage by stage.
-
Workmanship: armor plate or metal strip (call " board roll " ) curly solder to be in charge of. This is the mainstream of conduit of artery of Sunday run large requirements.
-
Advantage: Cost efficiency of low, production is tall, producible exceed big diameter pipeline.
-
Defect: Welding line is potential weak point.
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According to soldering technology differs, divide again it is two kinds big:
Cop canal is used normallyMicroalloy is changedhigh strenth low-alloy steel (HSLA) , obtain high strenth and tall tenacity through controlling rolling and heat treatment.
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Standard: What use extensively is American oil societyAPIStandard.
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Class of commonly used steel:
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B class, X42, X46, X52: Inchoate or low-pressure conduit.
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X60, X65, X70: Of conduit of artery of high pressure of contemporary Sunday runMainstream steel class.
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X80: The technology is advanced, large-scale already applying, can reduce a wall significantly thick with weight, reduce construction cost.
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X90, X100, X120: Class of more advanced and other steel, still be in experiment and local application phase.
5, the cop canal of special kind
As the aggravation of environment of exploitation of the sources of energy, appeared the cop canal of a lot of special demand:
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Fight hydrogen to send craze (HIC) / fight sulfide stress craze (SSC) cop canal:
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Use at carrying Gao Han sulfur (" sour gas " ) oil gas, because vulcanization hydrogen is corroded,prevent to bring about conduit interior craze. To steel pure spend and microcoic organization has extremely high demand.
Deep-sea cop is in charge of:
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With the conduit end Yu Hai, need bears extremely high exterior and hydraulic, low temperature and complex marine corrosion environment.
Arctic / microtherm cop canal:
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Use at extremely cold region, requirement steel tube falls in extremely low temperature (be like - 40 ℃ , - 60 ℃ ) still have exceedingly good concussion tenacity, prevent brittleness to rupture.
6, applied domain summary
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Oil gas cropland: The collect of oil field interior is defeated by conduit.
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Sunday run is carried: Span province city, country even the oil of the mainland and natural gas carry artery.
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The city manages a network: The city lights gas and feed pipe net.
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Marine project: Marine oil gas carries conduit.
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Large water conservancy projectAndOar body carries a system.
Cop is in charge of Vs. Alloy steel tube
Oil gas cropland: The collect of oil field interior is defeated by conduit.
Sunday run is carried: Span province city, country even the oil of the mainland and natural gas carry artery.
The city manages a network: The city lights gas and feed pipe net.
Marine project: Marine oil gas carries conduit.
Large water conservancy projectAndOar body carries a system.
Understand better to help you, here makes a simple contrast:
| Feature | Cop canal | Alloy steel tube (narrate like preamble place) |
|---|---|---|
| Core utility | Carry a fluid(oily, angry, water) | Bear mixed operating mode(high temperature, high pressure, corrode, structural load) |
| Function emphasizes particularly on | High strenth, tall tenacity, solderability | High temperature resistant, anti-corrosive, high strenth / wear-resisting |
| Material characteristic | It is moreMicroalloy is changedHigh strenth low-alloy steel | Join clearlyHigher proportionalloying element (Cr, mo, ni wait) |
| Typical product | Canal of solder of API 5L X70 LSAW | ASTM A335 P91 is not had seam a canal, stainless steel of ASTM A312 316L canal |
| Apply setting | On the west gas east be defeated by conduit | Utility boiler superheater, chemical plant reactor |
Simple for: All cop canal can be regarded is those who have specific use " steel tube " , but be not all steel tube is " cop is in charge of " . Cop canal is the professional category with an oriented and specific function, and alloy steel tube is function of a material oriented wider extensive category.
