CN105546232A - Double-wall pipe for dual-fuel propelling ship - Google Patents

Double-wall pipe for dual-fuel propelling ship Download PDF

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Publication number
CN105546232A
CN105546232A CN 201610068172 CN201610068172A CN105546232A CN 105546232 A CN105546232 A CN 105546232A CN 201610068172 CN201610068172 CN 201610068172 CN 201610068172 A CN201610068172 A CN 201610068172A CN 105546232 A CN105546232 A CN 105546232A
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CN
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Prior art keywords
end
pipe body
double
outer
tube
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CN 201610068172
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Chinese (zh)
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朱刚
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中航鼎衡造船有限公司
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00Rigid pipes
    • F16L9/18Double-walled pipes; Multi-channel pipes or pipe assemblies

Abstract

The invention relates to a double-wall pipe for a dual-fuel propelling ship. The double-wall pipe comprises an inner pipe body and an outer pipe body. The inner pipe body is interiorly connected into the outer pipe body. A plurality of evenly-distributed supporting plates are arranged between one end of the inner pipe body and one end of the outer pipe body. One end of each supporting plate is connected to the outer surface of the inner pipe body in a welding manner, and the supporting plates are evenly distributed. Cushion blocks are arranged at the other ends of the supporting plates and made of Teflon materials. The other ends of the cushion blocks support the inner surface of the outer pipe body. The double-wall pipe is simple in structure, the supporting plates are arranged between one end of the inner pipe body and one end of the outer pipe body, the Teflon cushion blocks are arranged at the outer ends of the supporting plates, and therefore insulation can be effectively carried out, and friction is reduced, wherein the inner pipe body and the outer pipe body are coaxial. The double-wall pipe has the beneficial effects that the section area is maximized, the resistance is reduced, and the ventilation rate is guaranteed; and the manufacturing technology is simple, and the manufacturing cost is low.

Description

一种双燃料推进船舶用双壁管 A dual fuel marine propulsion double-walled tube

技术领域 FIELD

[0001]本发明涉及一种管道,尤其涉及一种双燃料推进船舶用双壁管。 [0001] The present invention relates to a pipe, particularly to a dual-fuel propulsion marine double-walled tube.

背景技术 Background technique

[0002] LNG是以碳氢化合物为主的气体混合物,主要成分为甲烷,爆炸极限(和空气混合比)为5〜15% ;液态的LNG为-164°C。 [0002] LNG is a hydrocarbon-based gas mixture composed mainly of methane, explosive limit (and air mixture ratio) is 5~15%; LNG liquid is -164 ° C.

[0003]随着油价的上涨和国际法规对海运环保的要求越来越高,LNG作为船用燃料,在降低成本、减少大气排放,特别是NOx、C0-2、SOx和颗粒(烟尘)的排放方面优势明显,素有绿色能源之称。 [0003] With the rise of oil prices and international regulatory requirements for maritime environmental protection have become increasingly demanding, LNG as a marine fuel, reduce costs, reduce atmospheric emissions, particularly NOx, C0-2, SOx and particulate (soot) emissions in obvious advantages, known as green energy said. 近年来以LNG为燃料的动力船舶备受青睐。 In recent years, with LNG-powered ships favored fuel.

[0004]使用LNG为燃料的船舶,机舱通常按照本质安全型设计,船级社规范、法规要求本质安全型机舱内的燃气管路采用双璧管,双壁管范围内的空气换气量要达到此双壁管内体积的至少30倍,现有市场上的双壁管制造比较复杂,成本较高。 [0004] The use of LNG as ship fuel, usually a nacelle according to intrinsically safe design, classification rules and regulations in the gas line using intrinsically safe cabin Shuangbi tube, the amount of ventilation air to reach the range of the double-walled tube at least 30 times the volume within the double-walled tube, double-walled tube manufactured on the conventional market is complex and costly.

发明内容 SUMMARY

[0005]针对上述缺陷,本发明的目的在于提供一种结构简单,制造方便,制造成本低的一种双燃料推进船舶用双壁管。 [0005] For the above disadvantages, an object of the present invention is to provide a simple structure, easy manufacturing and low manufacturing cost of a dual fuel marine propulsion double-walled tube.

[0006]为此本发明所采用的技术方案是: [0006] for this aspect of the present invention is employed:

包括内管和外管,所述内管内接于外管内且同轴心,所述内管与外管两端之间分别设有若干均匀分布的支撑板,所述若干支撑板的一端与内管的外表面焊接连接且均匀分布,所述支撑板的另一端设有垫块,所述垫块为特氟龙材料制成,所述垫块的另一端支撑外管的内表面。 Comprising an inner tube and an outer tube, said inner tube to the inner tube and outer coaxial, between both ends of the inner tube and the outer tube are respectively provided with a plurality of evenly distributed support plate, one end of said plurality of support plate the outer surface of the welded tube is connected to and evenly distributed, the other end of the support plate is provided with a pad, the pad is made of Teflon material and the other end of the pad support of the inner surface of the outer tube.

[0007]进一步,所述垫块与支撑板接触的一端设有卡槽,所述卡槽的宽度等于支撑板的厚度,所述支撑板与垫块接触的一端设有限位槽,所述限位槽的宽度等于垫块的长度。 [0007] Further, one end of the pad in contact with the support plate slot, the slot width equal to the thickness of the support plate, one end of the support plate is provided in contact with the pad limiting grooves, the restrictor the width of the groove is equal to the bit length of the spacer.

[0008]进一步,所述支撑板的限位槽内设有调节垫片,所述调节垫片也位于卡槽内。 [0008] Further, the support plate is provided with a stopper groove adjusting spacer, the spacer is also located within the adjustment slot.

[0009]进一步,所述调节垫片为不锈钢片,所述不锈钢片的厚度为0.5-1_。 [0009] Further, the adjusting shim is a stainless steel sheet, said steel sheet having a thickness of 0.5-1_.

[0010]进一步,所述支撑板的数量为3-5个。 [0010] Further, the number of the support plate 3-5.

[0011]本发明的优点是: [0011] The advantage of the present invention are:

本发明结构简单,通过在同轴心的内管和外管两端之间设置设置支撑板,并在支撑板的外端设置特氟龙垫块,能够有效进行绝缘并减少摩擦,具有截面积最大化,降低阻力保证通风量等优点,制造工艺简单,制造成本低,由于内管和外管均为整管,无额外焊接及泄露风险。 The present invention is simple in structure, it can be effectively insulated by providing a support plate disposed between the ends of the inner and outer tubes coaxially and is provided at the outer end of the Teflon spacer and the support plate to reduce friction, having cross-sectional area maximized, reducing resistance to ensure ventilation, etc., simple manufacturing process, low manufacturing cost, since the inner and outer tubes are each an integer pipe, welding and no additional risk of leakage.

附图说明 BRIEF DESCRIPTION

[0012]图1是本发明的结构示意图。 [0012] FIG. 1 is a structural diagram of the present invention.

[0013]图2是图1的剖视图。 [0013] FIG. 2 is a cross-sectional view of FIG.

[0014]图3是图1中垫块的结构示意图。 [0014] FIG. 3 is a schematic view of the spacer in FIG.

[0015]图4是图1中支撑板的结构示意图。 [0015] FIG. 4 is a schematic view of the support plate 1 in FIG.

[0016]图中I是内管、2是外管、3是支撑板、4是垫块、5是卡槽、6是限位槽、7是调节垫片。 [0016] FIG. I is the inner tube, the outer tube 2, a support plate 3, spacers 4, slot 5, slot 6 is a stop, the gasket 7 is adjusted.

具体实施方式 detailed description

[0017] —种双燃料推进船舶用双壁管,包括内管I和外管2,所述内管I内接于外管2内且同轴心,所述内管I与外管2两端之间分别设有若干均匀分布的支撑板3,所述若干支撑板3的一端与内管I的外表面焊接连接且均匀分布,所述支撑板3的另一端设有垫块4,所述垫块4为特氟龙材料制成,所述垫块4的另一端支撑外管2的内表面;所述垫块4与支撑板3接触的一端设有卡槽5,所述卡槽5的宽度等于支撑板3的厚度,所述支撑板3与垫块4接触的一端设有限位槽6,所述限位槽6的宽度等于垫块4的长度;所述支撑板3的限位槽6内设有调节垫片7,所述调节垫片7也位于卡槽5内;所述调节垫片7为不锈钢片,所述不锈钢片的厚度为0.5-1mm;所述支撑板3的数量为3-5个。 [0017] - dual fuel propulsion marine species of double-walled tube, comprising an inner tube I and the outer tube 2, an outer tube connected to the inner tube 2 and I with the axis, the inner tube and the outer tube 2 two I are provided with a plurality of evenly distributed support plate 3 between the end outer surface of the end plate and supporting a plurality of the inner tube 3 welded connection I and evenly distributed, the other end of the support plate 3 is provided with a pad 4, the said spacer is made of Teflon material 4, the inner surface of the outer tube 4 and the other end supporting the pad 2; end of the spacer 4 in contact with the support plate 3 is provided with the slot 5, the slot 5 is equal to the width of the thickness of the support plate 3, the support plate 3 and the contact pad end of a limiting groove 4 6, the width of the stop groove 6 is equal to the length of the spacer 4; 3 of the support plate limit 6 bit slots 7 are equipped with adjustable spacers, the spacer 7 is also located within the adjustment slot 5; 7 stainless steel adjusting shims said sheet, said steel sheet having a thickness of 0.5 to 1 mm; the support plate 3 the number of 3-5.

Claims (5)

  1. 1.一种双燃料推进船舶用双壁管,其特征在于,包括内管和外管,所述内管内接于外管内且同轴心,所述内管与外管两端之间分别设有若干均匀分布的支撑板,所述若干支撑板的一端与内管的外表面焊接连接且均匀分布,所述支撑板的另一端设有垫块,所述垫块为特氟龙材料制成,所述垫块的另一端支撑外管的内表面。 A dual-fuel propulsion of the ship with a double-walled tube, characterized in that it comprises an inner tube and an outer tube, said inner tube to the inner tube and the outer concentric tube between the outer ends of said inner tube and disposed respectively there are a number of evenly distributed support plate, an outer surface of one end of said plurality of support plate welded connection with the inner tube and evenly distributed, the other end of the support plate is provided with pads, the pad is made of Teflon material the other end of the pad support of the inner surface of the outer tube.
  2. 2.根据权利要求1所述的一种双燃料推进船舶用双壁管,其特征在于,所述垫块与支撑板接触的一端设有卡槽,所述卡槽的宽度等于支撑板的厚度,所述支撑板与垫块接触的一端设有限位槽,所述限位槽的宽度等于垫块的长度。 A dual fuel according to claim 1, said marine propulsion double-walled tube, characterized in that one end of the pad in contact with the support plate slot, the slot width equal to the thickness of the support plate One end of the pad support plate in contact with a limiting groove, the width of the limiting slot is equal to the length of the spacer.
  3. 3.根据权利要求2所述的一种双燃料推进船舶用双壁管,其特征在于,所述支撑板的限位槽内设有调节垫片,所述调节垫片也位于卡槽内。 3. A dual fuel according to claim 2 marine propulsion double-walled tube, characterized in that the support plate is provided with a stopper groove adjusting spacer, the spacer is also located within the adjustment slot.
  4. 4.根据权利要求3所述的一种双燃料推进船舶用双壁管,其特征在于,所述调节垫片为不锈钢片,所述不锈钢片的厚度为0.5-lmm。 A dual fuel according to claim 3, wherein said marine propulsion double-walled tube, characterized in that the adjusting shim is a stainless steel sheet, said steel sheet having a thickness of 0.5-lmm.
  5. 5.根据权利要求1所述的一种双燃料推进船舶用双壁管,其特征在于,所述支撑板的数量为3-5个。 A dual fuel according to claim 1, said marine propulsion double-walled tube, characterized in that the supporting plate is the number 3-5.
CN 201610068172 2016-02-01 2016-02-01 Double-wall pipe for dual-fuel propelling ship CN105546232A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3759297A (en) * 1972-01-10 1973-09-18 Westinghouse Electric Corp Utiliti line holder
CN104121421A (en) * 2014-07-15 2014-10-29 中船黄埔文冲船舶有限公司 Construction technology for double-layer pipelines of LNG powered ship gas supply system
CN204042183U (en) * 2014-06-25 2014-12-24 大连中远船务工程有限公司 Floating production storage and offloading device power module fuel gas two-layer pipe support
CN104315263A (en) * 2014-10-20 2015-01-28 张家港市人和高精管有限公司 Seamless steel pipe for draining
CN104565576A (en) * 2013-10-22 2015-04-29 中国石油化工股份有限公司 Pipeline and pipeline with coupling
CN205534674U (en) * 2016-02-01 2016-08-31 中航鼎衡造船有限公司 Double fuel impels double -wall pipe for boats and ships

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3759297A (en) * 1972-01-10 1973-09-18 Westinghouse Electric Corp Utiliti line holder
CN104565576A (en) * 2013-10-22 2015-04-29 中国石油化工股份有限公司 Pipeline and pipeline with coupling
CN204042183U (en) * 2014-06-25 2014-12-24 大连中远船务工程有限公司 Floating production storage and offloading device power module fuel gas two-layer pipe support
CN104121421A (en) * 2014-07-15 2014-10-29 中船黄埔文冲船舶有限公司 Construction technology for double-layer pipelines of LNG powered ship gas supply system
CN104315263A (en) * 2014-10-20 2015-01-28 张家港市人和高精管有限公司 Seamless steel pipe for draining
CN205534674U (en) * 2016-02-01 2016-08-31 中航鼎衡造船有限公司 Double fuel impels double -wall pipe for boats and ships

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