Encapsulated tubular cable with colorized identification strap, and preparation method thereof

11703,153

17/439120

May 13, 2021

An encapsulated tubular cable with a colorized identification strap includes armored protection ducts and an encapsulation protection layer. A hollow passage is formed in the center of the duct body after each armored protection duct is formed. A wire cable, an optical fiber, or an oil duct is placed in the hollow passage. The encapsulation protection layer wraps the armored protection ducts. A plurality of armored protection ducts are arranged in one encapsulated protection layer. A peripheral edge of each armored protection duct is correspondingly provided with at least one colorized identification strap group. The encapsulation protection layer improves the corrosion resistance of the encapsulated duct cable; the colorized identification straps are provided at the thinnest positions of the encapsulation protection layer to facilitate tearing and encapsulation; and each colorized identification strap has a respective color identifier, which is convenient for distinguishing objects in each hollow passage during use.

Shinda (Tangshan) Creative Oil & Gas Equipment Co., Ltd. (Hebei, CN)

1. An encapsulated tubular cable with colorized identification straps, comprising armored protection ducts and an encapsulation protection layer, wherein hollow passages are respectively formed in centers of the armored protection ducts; cables, optical fibers, or oil tubes are placed in the hollow passages; and the encapsulation protection layer wraps around the armored protection ducts; a plurality of armored protection ducts are arranged in the encapsulated protection layer; an outer peripheral edge of each armored protection duct is provided with at least one colorized identification strap group; straps of the colorized identification strap group are made of aramid ropes, and a single colorized identification strap group is formed by twisting multiple strands of single ropes or formed by loosely overlapping multiple single ropes.

2. The encapsulated tubular cable with the colorized identification straps according to claim 1 , wherein the armored protection duct is made of a welded stainless steel tube, and the encapsulation protection layer is made of a non-metal material.

3. The encapsulated tubular cable with the colorized identification straps according to claim 1 , wherein the encapsulation protection layer is designed to be a special-shaped single-layer structure, a double-layer structure, or an arc-shaped structure.

4. The encapsulated tubular cable with the colorized identification straps according to claim 3 , wherein when the encapsulation protection layer is designed to be the special-shaped single-layer structure, four outer side surfaces of the encapsulation protection layer each are provided with sunken regions; wide outer side surfaces of the four outer side surfaces each are provided with a plurality of first sunken regions, and narrow outer side surfaces of the four outer side surfaces each are provided with one second sunken region; and at least one thin portion of the outer periphery edge of the armored protection duct which corresponds to the first sunken regions or the second sunken region is provided with the colorized identification strap group.

5. The encapsulated tubular cable with the colorized identification straps according to claim 3 , wherein the encapsulation protection layer comprises an inner positioning layer and an outer positioning layer when being designed to be the double-layer structure; the inner positioning layer is disposed at the outer periphery edge of each armored protection duct wrapping around corresponding hollow passage; a side edge of the colorized identification strap group facing away from the armored protection duct is flush with an outer peripheral edge of the inner positioning layer; and the outer protection layer is wrapped on an outer peripheral surface of the inner positioning layer.

6. The encapsulated tubular cable with the colorized identification straps according to claim 1 , wherein the at least one colorized identification strap group is a plurality of colorized identification strap groups, the plurality of colorized identification strap groups provided at the outer periphery edge of the armored protection duct have same colors; colorized identification strap groups provided at different armored protection ducts have different colors.

7. The encapsulated tubular cable with the colorized identification straps according to claim 6 , wherein when three hollow passages are disposed in the encapsulated protection layer, a first identification strap group, second identification strap group, and third identification strap group are arranged at respective thin portions of three armored protection ducts.

8. A preparation method of an encapsulated tubular cable with colorized identification straps, the encapsulated tubular cable comprises armored protection ducts and an encapsulation protection layer, wherein hollow passages are respectively formed in centers of the armored protection ducts; cables, optical fibers, or oil tubes are placed in the hollow passages; and the encapsulation protection layer wraps around the armored protection ducts; a plurality of armored protection ducts are arranged in the encapsulated protection layer; and an outer peripheral edge of each armored protection duct is provided with at least one colorized identification strap group; wherein the preparation method comprises: Step for preparing the armored protection duct, comprising: placing a steel roll raw material on a steel belt reeling equipment; passing a start end of the steel roll raw material through a steel duct forming equipment, a steel duct laser welding equipment, an external burr removing equipment, a steel duct drawing equipment, an annealing furnace, and a nondestructive flaw detection equipment in sequence to obtain the armored protection duct; and rolling up the armored protection duct by an armored-protection-duct reeling equipment for use in a next procedure; Step for preparing the encapsulation protection layer: placing the armored protection duct to be encapsulated on the armored-protection-duct reeling equipment; placing cables or oil tubes on a cable reeling equipment; passing a start end of the armored protection duct through a straightening equipment, a preheating equipment, an identification strap reeling equipment, an extrusion equipment, a cooling device, and a draw-off equipment to form the encapsulated tubular cable with the encapsulation protection layer; and rolling up the encapsulated tubular cable by an encapsulated-duct-cable reeling equipment.

9. The preparation method of the encapsulated tubular cable with the colorized identification straps according to claim 8 , wherein when the encapsulation protection layer is set to be the double-layer structure, the step for preparing the encapsulation protection layer comprises: placing the armored protection duct to be encapsulated on the armored-protection-duct reeling equipment; placing the cables or oil tubes on the cable reeling equipment; passing the start end of the armored protection duct through the straightening equipment, the preheating equipment, the identification strap reeling equipment, the extrusion equipment, the cooling device, and the draw-off equipment to form an encapsulated tubular cable with an inner positioning layer; and rolling up the encapsulated tubular cable with the inner positioning layer by the encapsulated-duct-cable reeling equipment for use in a subsequent procedure; Step for preparing an outer protection layer, comprising: placing the encapsulated tubular cable with the inner positioning layer on the encapsulated-duct-cable reeling equipment; passing the start end of the armored protection duct through the straightening equipment, the preheating equipment, the extrusion equipment, the cooling device, and the draw-off equipment to form the encapsulated tubular cable with an outer positioning layer, wherein the outer protection layer is wrapped around a periphery of the inner positioning layer to form a finished encapsulated tubular cable which is rolled up by the encapsulated-duct-cable reeling equipment.

10. The preparation method of the encapsulated tubular cable with the colorized identification straps according to claim 8 , wherein the armored protection duct is made of a welded stainless steel tube, and the encapsulation protection layer is made of a non-metal material.

11. The preparation method of the encapsulated tubular cable with the colorized identification straps according to claim 8 , wherein the encapsulation protection layer is designed to be a special-shaped single-layer structure, a double-layer structure, or an arc-shaped structure.

12. The preparation method of the encapsulated tubular cable with the colorized identification straps according to claim 11 , wherein when the encapsulation protection layer is designed to be the special-shaped single-layer structure, four outer side surfaces of the encapsulation protection layer each are provided with sunken regions; wide outer side surfaces of the four outer side surfaces each are provided with a plurality of first sunken regions, and narrow outer side surfaces of the four outer side surfaces each are provided with one second sunken region; and at least one thin portion of the outer periphery edge of the armored protection duct which corresponds to the first sunken regions or the second sunken region is provided with the colorized identification strap group.

13. The preparation method of the encapsulated tubular cable with the colorized identification straps according to claim 11 , wherein the encapsulation protection layer comprises an inner positioning layer and an outer positioning layer when being designed to be the double-layer structure; the inner positioning layer is disposed at the outer periphery edge of each armored protection duct wrapping around corresponding hollow passage; a side edge of the colorized identification strap group facing away from the armored protection duct is flush with an outer peripheral edge of the inner positioning layer; and the outer protection layer is wrapped on an outer peripheral surface of the inner positioning layer.

14. The preparation method of the encapsulated tubular cable with the colorized identification straps according to claim 8 , wherein straps of the colorized identification strap group are made of aramid ropes, and a single colorized identification strap group is formed by twisting multiple strands of single ropes or formed by loosely overlapping multiple single ropes.

15. The preparation method of the encapsulated tubular cable with the colorized identification straps according to claim 14 , wherein the at least one colorized identification strap group is a plurality of colorized identification strap groups, the plurality of colorized identification strap groups provided at the outer periphery edge of the armored protection duct have same colors; colorized identification strap groups provided at different armored protection ducts have different colors.

16. The preparation method of the encapsulated tubular cable with the colorized identification straps according to claim 15 , wherein when three hollow passages are disposed in the encapsulated protection layer, a first identification strap group, second identification strap group, and third identification strap group are arranged at respective thin portions of three armored protection ducts.

10215940 February 2019 Peterson, III
20170351045 December 2017 Kimoto
20200183133 June 2020 Huang

edspgr.11703153