CN201428896Y

CN201428896Y - Double-layer heat tracing pipe improved structure

Info

Publication number: CN201428896Y
Application number: CN2009200593124U
Authority: CN
Inventors: 边泰; 涂武
Original assignee: CSSC Guangzhou Huangpu Shipbuilding Co Ltd
Current assignee: CSSC Guangzhou Huangpu Shipbuilding Co Ltd
Priority date: 2009-06-26
Filing date: 2009-06-26
Publication date: 2010-03-24
Anticipated expiration: 2019-06-26

Abstract

The utility model relates to a cargo oil heat tracing pipe, in particular to a double-layer heat tracing pipe improved structure, which belongs to the field of marine machinery cargo oil heat transport pipeline and is used for carrying a liquid asphalt or other petroleum products at a temperature of 45 to 200 degree C. The technical problem to be solved by the utility model is to provide the double-layer heat tracing pipe improved structure which is simple and practical and has convenient installation and maintenance. The technical scheme is that: the double-layer heat tracing pipe improved structure comprises a cargo oil transport pipe and cargo oil heat tracing pipes; the cargo oil transport pipe is sleeved in the cargo oil heat tracing pipes; at least two cargo oil heat tracing pipes are provided; a welding line of the cargo oil transport pipe is positioned at a gap between the two adjacent cargo oil heat tracing pipes; both ends of each cargo oil heat tracing pipe are welded and sealed by a steel web; and the two adjacent cargo oil heat tracing pipes are conducted by a hot oil connecting pipe. The utility model has the advantages that: (1) outer pipes, namely the cargo oil heattracing pipes, adopt a sectionalized bridge connection and the installation is convenient; (2) an inner pipe, namely the cargo oil transport pipe, has the exposed welding line and the maintenance isconvenient.

Description

Double-layer heat tracing pipe improving structure

Technical field

The utility model relates to a kind of Cargo Oil TRACER, relates in particular to a kind of double-layer heat tracing pipe improving structure, belongs to marine engine room Cargo Oil heat transportation pipeline field; Be used to deliver liquid bitumen or other petroleum products between 45 ℃ to 200 ℃.

Background technique

The 5900DWT asphalt tanker that our company manufactures is mainly used in liquid bitumen or the oil product of delivery between 45 ℃ to 200 ℃.Pitch is the final products of crude oil, and under normal temperature, it is semisolid.For pitch is delivered on the ship from oil refinery pump, or pitch from ship is discharged on the bank reservoir vessel, just must be heated to corresponding temperature to it, also to remain this high temperature at term of voyage.The temperature that shuttle asphalt suits keeps certain temperature in order to make the pitch pipeline about about 160 ℃, the Circulation and Hot Oil Spray system need be provided.The Circulation and Hot Oil Spray system is made up of cargo hold district, Cargo Oil transportation pipeline and Cargo Oil TRACER.As, asphalt tank, pitch transport pipe and pitch TRACER; The mounting structure of Cargo Oil transport pipe 01 and Cargo Oil TRACER 02 mainly contains two kinds of forms: deep fat companion's line pipe and double-layer heat tracing pipe.For double-layer heat tracing pipe, be exactly pipe in the outer tube sleeve, operation Cargo Oil 011 in the interior pipe, operation deep fat 022 in the sleeve pipe, referring to Fig. 1, the plan view of double-layer heat tracing pipe; The making method of above-mentioned double-layer heat tracing pipe generally is a pipe in the weldering earlier, welds outer tube again, and then has overlapped and fix.Such making method has following shortcoming: 1, installation is limited, and the straight tube sleeve pipe that span is big is installed and is difficult for aiming at, and the erecting bed is subjected to spatial constraints; 2, maintenance difficult, interior pipe weld seam 03 are hidden by outer tube, be inconvenient to keep in repair, and referring to Fig. 2, the A-A sectional view of Fig. 1.

The model utility content

The purpose of this utility model is to overcome the defective of background technique, and a kind of double-layer heat tracing pipe improving structure simple and practical, easy to installation and maintenance is provided.

The purpose of this utility model is achieved by the following technical programs:

Double-layer heat tracing pipe improving structure comprises Cargo Oil transport pipe and Cargo Oil TRACER, and described Cargo Oil transport pipe is placed in the described Cargo Oil TRACER; Described Cargo Oil TRACER is at least two, the gap of the weld seam of described Cargo Oil transport pipe between adjacent two Cargo Oil TRACER; Described each Cargo Oil TRACER two ends are with steel web welded closure; Adjacent two Cargo Oil TRACER are with the conducting of deep fat connecting tube.

In the gap of the weld seam of described Cargo Oil transport pipe between adjacent two Cargo Oil TRACER.

Described gap width is more than or equal to 150-200mm.

Be welded with dunnage on the described Cargo Oil transport pipe and between the Cargo Oil TRACER.

Described each deep fat connecting tube is staggered front to back and surrounds outside the described Cargo Oil transport pipe, and the top of the described Cargo Oil TRACER of adjacent back segment is connected in the bottom of described leading portion Cargo Oil TRACER by described deep fat connecting tube.Connect by the deep fat connecting tube between adjacent two sections Cargo Oil TRACER, deep fat is flowed out by leading portion Cargo Oil TRACER bottom in the pipe, flows into back segment Cargo Oil TRACER, so forms the deep fat path, for example is beneficial to deep fat and Cargo Oil, the exchange heat between the pitch.

The beneficial effects of the utility model are: 1, outer tube promptly, the Cargo Oil TRACER adopts the segmentation cross-over connection, and is easy for installation; 2, interior pipe promptly, Cargo Oil transport pipe weld seam exposes, be convenient to the maintenance.

Description of drawings

Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail.

Fig. 1 is the background technique plan view;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is the utility model schematic representation.

Accompanying drawing sign: pipe weld seam in the pipe 011-Cargo Oil 02-outer tube 022-deep fat 03-in the 1-Cargo Oil transport pipe 2-Cargo Oil TRACER 3-deep fat connecting tube 4-steel web 5-dunnage 6-weld seam 01-

Embodiment

As shown in Figure 3, the utility model schematic representation.

Double-layer heat tracing pipe improving structure, comprise Cargo Oil transport pipe 1 and Cargo Oil TRACER 2, described Cargo Oil transport pipe 1 is placed in the described Cargo Oil TRACER 2, described Cargo Oil TRACER 2 is at least two, in the gap of the weld seam 6 of described Cargo Oil transport pipe 1 between adjacent two Cargo Oil TRACER 2, described gap width more than or equal to 150-200mm with convenient for maintaining; Described each Cargo Oil TRACER 2 two ends are with steel web 4 welded closure; Adjacent two Cargo Oil TRACER 2 are with 3 conductings of deep fat connecting tube;

Be welded with dunnage 5 on the described Cargo Oil transport pipe 1 and between the Cargo Oil TRACER 2;

Described each deep fat connecting tube 3 is staggered front to back and surrounds outside the described Cargo Oil transport pipe 1, and the top of the described Cargo Oil TRACER 2 of adjacent back segment is connected in the bottom of described leading portion Cargo Oil TRACER 2 by described deep fat connecting tube 3.

Described Cargo Oil transport pipe 1 is placed in the Cargo Oil TRACER 2, and Cargo Oil transport pipe 1 is continuous straight tube, and Cargo Oil transport pipe 1 attachment weld 6 is avoided in the 2 segmentation cross-over connections of Cargo Oil TRACER.Cargo Oil for example, pitch flows in interior pipe, promptly the Cargo Oil transport pipe 1, deep fat flows in the Cargo Oil TRACER 2 by deep fat connecting tube 3.

Every section Cargo Oil TRACER 2 two ends steel web 4 welded closure.If Cargo Oil TRACER 2 spans are bigger, dunnage 5 can be welded in middle appropriate location on Cargo Oil transport pipe 1.

Connect with deep fat connecting tube 3 between adjacent two sections Cargo Oil TRACER 2, deep fat is flowed out by leading portion Cargo Oil TRACER 2 bottoms in the pipe, flows into back segment Cargo Oil TRACER 2, so forms the deep fat path, for example is beneficial to deep fat and Cargo Oil, the exchange heat between the pitch.

The utility model is not limited to above mode of execution, so long as the scheme of mentioning in this specification and claims book all can be implemented.

Claims

1, a kind of double-layer heat tracing pipe improving structure comprises Cargo Oil transport pipe (1) and Cargo Oil TRACER (2), and described Cargo Oil transport pipe (1) is placed in the described Cargo Oil TRACER (2); It is characterized in that: described Cargo Oil TRACER (2) is at least two, and the weld seam (6) of described Cargo Oil transport pipe (1) is positioned at the gap between the adjacent two Cargo Oil TRACER (2); Described each Cargo Oil TRACER (2) two ends are with steel web (4) welded closure; Adjacent two Cargo Oil TRACER (2) are with deep fat connecting tube (3) conducting.

2, double-layer heat tracing pipe improving structure according to claim 1 is characterized in that: the weld seam (6) of described Cargo Oil transport pipe (1) is positioned at the gap between the adjacent two Cargo Oil TRACER (2).

3, double-layer heat tracing pipe improving structure according to claim 2 is characterized in that: described gap width is more than or equal to 150-200mm.

4, according to claim 1 or 2 or 3 described double-layer heat tracing pipe improving structures, it is characterized in that: described Cargo Oil transport pipe (1) upward and between the Cargo Oil TRACER (2) is welded with dunnage (5).

5, according to claim 1 or 2 or 3 described double-layer heat tracing pipe improving structures, it is characterized in that: described each deep fat connecting tube (3) is staggered front to back and surrounds outside the described Cargo Oil transport pipe (1), and the top of the described Cargo Oil TRACER of adjacent back segment (2) is connected in the bottom of described leading portion Cargo Oil TRACER (2) by described deep fat connecting tube (3).

6, double-layer heat tracing pipe improving structure according to claim 4, it is characterized in that: described each deep fat connecting tube (3) is staggered front to back and surrounds outside the described Cargo Oil transport pipe (1), and the top of the described Cargo Oil TRACER of adjacent back segment (2) is connected in the bottom of described leading portion Cargo Oil TRACER (2) by described deep fat connecting tube (3).