CN107902047A - A kind of liquid goods double-wall pipe and preparation method thereof - Google Patents
A kind of liquid goods double-wall pipe and preparation method thereof Download PDFInfo
- Publication number
- CN107902047A CN107902047A CN201710978893.0A CN201710978893A CN107902047A CN 107902047 A CN107902047 A CN 107902047A CN 201710978893 A CN201710978893 A CN 201710978893A CN 107902047 A CN107902047 A CN 107902047A
- Authority
- CN
- China
- Prior art keywords
- liquid goods
- pipe
- heating muff
- double
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
- B63B27/25—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines for fluidised bulk material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention discloses a kind of liquid goods double-wall pipe and preparation method thereof, belongs to ship conveying technology field.The liquid goods double-wall pipe includes：Liquid goods pipe；Heating muff is socketed on liquid goods pipe, and hot oil inlet and hot oil outlet are offered on heating muff；Locking device is arranged on heating muff both ends, and locking device is connected with liquid goods pipe.Liquid goods double-wall pipe of the present invention and preparation method thereof can provide heat source for the liquid goods in liquid goods pipe, reduce liquid goods viscosity, easy to loading, unloading goods on the liquid goods in cargo hold liquid goods pipe from liquid level in cabin influences and is sufficiently heated.
Description
Technical field
The present invention relates to ship conveying technology field, more particularly to a kind of liquid goods double-wall pipe and preparation method thereof.
Background technology
Asphalt tanker or oil carrier can be with the larger materials of conveying asphalt or other viscosity, and carrying out transport on the water can to the greatest extent can
The guarantee safety of energy and transport are unobstructed.But in the prior art, when asphalt tanker or oil carrier need to pitch or other viscosity compared with
Big material on hull when being unloaded, and when Cargo Oil liquid level is less than liquid goods pipe, the liquid goods temperature in liquid goods pipe has necessarily
Reduction, cause pitch or the larger material of other viscosity to be bonded on liquid goods pipe, for the liquid goods of big viscosity, bring dress,
The problem of unloading is difficult.
The content of the invention
The present invention provides a kind of liquid goods double-wall pipe and preparation method thereof, solves or part solves and works as drip in the prior art
Blue or green ship or oil carrier need the material larger to pitch or other viscosity, and in loading, unloading goods, the liquid goods of big viscosity can be bonded in liquid goods
Guan Shang, arrive the difficult technical problem of unloading.
To include in order to solve the above technical problems, the present invention provides a kind of liquid goods double-wall pipe：Liquid goods pipe；Heating muff, set
It is connected on the liquid goods pipe, hot oil inlet and hot oil outlet is offered on the heating muff；Locking device, is arranged on described add
Thermal sleeve both ends, the locking device are connected with the liquid goods pipe.
Further, the hot oil inlet is arranged on the lower section of the heating muff, and the hot oil outlet is arranged on described
The top of heating muff.
Further, the locking device includes：Sealing plate, is arranged on the heating muff both ends, the sealing plate with it is described
Liquid goods pipe connects.
Further, the liquid goods double-wall pipe further includes：Support device, first end are arranged on the liquid goods pipe, and second
End is contacted with the heating muff.
Further, the support device includes：
Round steel is supported, first end is arranged on the liquid goods pipe, and second end is contacted with the heating muff.
Based on identical inventive concept, the present invention also provides a kind of production method of liquid goods double-wall pipe to comprise the following steps：
Heating muff is socketed on liquid goods pipe, an accommodating space is formed between the heating muff and the liquid goods pipe；Add described
Thermal sleeve both ends set locking device；Deep fat passes sequentially through the hot oil inlet opened up on the heating muff, the accommodating space
The hot oil outlet opened up on into the heating muff；The deep fat heats the liquid goods pipe.
Further, described heating muff is socketed on liquid goods pipe includes：On heating muff to be socketed in liquid goods pipe
Before, support device is set on the liquid goods pipe.
Further, the maximum outside diameter of the support device is less than the internal diameter of the heating muff.
Further, described heating muff is socketed on liquid goods pipe includes：Heating muff is socketed on liquid goods pipe it
Afterwards, the heating muff is rotated, is located at the hot oil inlet and is located at institute in the lower section of the heating muff, the hot oil outlet
State the top of heating muff.
Further, the locking device and the distance at the liquid goods pipe both ends are 150-250mm.
The one or more technical solutions provided in the embodiment of the present application, have at least the following technical effects or advantages：
Heating muff is socketed on liquid goods pipe, an accommodating space is formed between heating muff and liquid goods pipe, in heating mantle
Pipe both ends set locking device, and deep fat passes sequentially through the hot oil inlet opened up on heating muff, accommodating space enters heating muff
On the hot oil outlet that opens up, deep fat heats liquid goods pipe, can be to the liquid goods in cargo hold liquid goods pipe from liquid level shadow in cabin
Ring and sufficiently heated, provide heat source for the liquid goods in liquid goods pipe, liquid goods viscosity is reduced, easy to loading, unloading goods.
Brief description of the drawings
Fig. 1 is the structure diagram of liquid goods double-wall pipe provided in an embodiment of the present invention；
Fig. 2 is the operating diagram of liquid goods double-wall pipe in Fig. 1.
Embodiment
Referring to Fig. 1-2, a kind of liquid goods double-wall pipe provided in an embodiment of the present invention includes：Liquid goods pipe 1, heating muff 2 and envelope
Close device 3.
The heating muff 2 is socketed on the liquid goods pipe 1, and hot oil inlet 2-1 and heat are offered on the heating muff 2
Oil export 2-2.
The locking device 3 is arranged on 2 both ends of heating muff, and the locking device 3 is connected with the liquid goods pipe 1.
Heating muff is socketed on liquid goods pipe by the application embodiment, and one is formed between heating muff and liquid goods pipe
Accommodating space, locking device is set at heating muff both ends, and deep fat passes sequentially through the hot oil inlet opened up on heating muff, houses
Space enters on heating muff the hot oil outlet opened up, and deep fat heats liquid goods pipe, can be to the liquid in cargo hold liquid goods pipe
Goods is sufficiently heated in from cabin under the influence of liquid level, is provided heat source for the liquid goods in liquid goods pipe, is reduced liquid goods viscosity, just
In loading, unloading goods.
The structure of heating muff is discussed in detail.
The hot oil inlet 2-1 is arranged on the lower section of the heating muff 2, and the hot oil outlet 2-2 is arranged on described add
The top of thermal sleeve 2, can be such that deep fat is formed by way of low in and high out into the heating muff 2 with the liquid goods pipe 1
Accommodating space, deep fat is fully flowed in the accommodating space, come into full contact with 1 outer wall of liquid goods pipe, can be to institute
The liquid goods stated in liquid goods pipe is sufficiently heated.
The structure of locking device is discussed in detail.
The locking device includes：Sealing plate 3-1.
The sealing plate 3-1 is fixed at 2 both ends of heating muff.Specifically, in the present embodiment, the sealing plate
3-1 is arranged on 2 both ends of heating muff by being welded and fixed.The sealing plate 3-1 is fixedly connected with the liquid goods pipe 1.Specifically
Ground, in the present embodiment, the sealing plate 3-1 are fixedly connected by welding with the liquid goods pipe 1.The sealing plate 3-1 closes institute
2 both ends of heating muff are stated, the heating muff 2 is sealed with the accommodating space that the liquid goods pipe 1 is formed, avoids deep fat from flowing out.
Wherein, the locking device 3 can also be baffle.
Liquid goods double-wall pipe of the present invention further includes：Support device 4.
4 first end of support device is fixed on the liquid goods pipe 1.Specifically, in the present embodiment, it is described
4 first end of support device is arranged on the liquid goods pipe 1 by being welded and fixed.4 second end of support device and the heating
Casing 2 contacts.
The support device 4 is used to support the heating muff 2, avoids because of the deep fat matter that heating muff 2 is conducted oneself with dignity or is flowed
Amount causes greatly the heating muff 2 to fall on the liquid goods pipe 1.
The structure of support device is discussed in detail.
The support device includes：Support round steel 4-1.
The support round steel 4-1 first ends are fixed on the liquid goods pipe 1, and second end connects with the heating muff 2
Touch.
Wherein, the length of the liquid goods pipe 1 is L, it is described support round steel 4-1 anchor points to 1 end of liquid goods pipe away from
From L1, L1=Shang L ± 300mm, can preferably support the heating muff 2.
Based on identical inventive concept, the present invention provides a kind of production method of liquid goods double-wall pipe and comprises the following steps：
Step 1, heating muff 2 is socketed on liquid goods pipe, one is formed between the heating muff 2 and the liquid goods pipe 1
Accommodating space.
Step 2, locking device 3 is set at 2 both ends of heating muff.
Step 3, described in deep fat passes sequentially through the hot oil inlet opened up on the heating muff 2, the accommodating space enters
The hot oil outlet opened up on heating muff 2.
Step 4, the deep fat heats the liquid goods pipe 1.
Step 1 is discussed in detail.
Described heating muff is socketed on liquid goods pipe includes：Before heating muff 2 is socketed on liquid goods pipe 1,
Support device 4 is set on the liquid goods pipe 1, the heating muff 2 is used to support, avoids 2 length of heating muff long, because
The deep fat quality that heating muff 2 is conducted oneself with dignity or flowed causes greatly the heating muff 2 to fall on the liquid goods pipe 1.
The maximum outside diameter of the support device 4 is less than the internal diameter of the heating muff 2, easy to the heating muff 2
It is socketed on the liquid goods pipe 1, avoids disturbing the installation of the heating muff 2.
Described heating muff is socketed on liquid goods pipe includes：After heating muff 2 is socketed on liquid goods pipe 1, rotation
The heating muff 2, is located at the hot oil inlet 2-1 and is located in the lower section of the heating muff 2, the hot oil outlet 2-2
The top of the heating muff 2, can make deep fat enter the heating muff 2 and the liquid goods pipe by way of low in and high out
1 accommodating space formed, makes deep fat fully be flowed in the accommodating space, is come into full contact with 1 outer wall of liquid goods pipe, can be with
Liquid goods in the liquid goods pipe is sufficiently heated.
Step 1 is discussed in detail.
The locking device 3 and the distance at 1 both ends of liquid goods pipe are 150-250mm, both easy to live two double-wall pipes
Butt welding, and reduce the length that liquid goods pipe is heated without deep fat.
In order to become apparent from the embodiment of the present invention, introduced below from the application method of the embodiment of the present invention.
The length of liquid goods pipe 1 is L, can generally select 6m scale pipes, and both convenience in transport and installation, made easy to workshop；
And only need to set one group of support round steel 4-1 among liquid goods pipe 1 as support, it is possible to reduce welding job.Support round steel
4-1 anchor points to 1 end of liquid goods pipe distance L1, L1=Shang L ± 300mm.If the length of liquid goods pipe 1 is less than 2m, this support
Round steel 4-1 can be omitted, by two end-plate 3-1 to support heating muff 2, in accommodating space in deep fat and liquid goods pipe 1 liquid goods weight
Amount.The distance L2, L2 of sealing plate 3-1 to 1 end of liquid goods pipe are 150-250mm, not only easy to live two double-wall pipe butt welding, but also
Reduce the length that liquid goods pipe is heated without deep fat.
First, the supporting item of 4 support round steel 4-1 compositions, the branch of 4 support round steel 4-1 compositions are welded on liquid goods pipe 1
The maximum outside diameter of support member is less than the internal diameter of heating muff 2, is socketed in easy to heating muff 2 on liquid goods pipe 1, avoids interference from adding
The installation of thermal sleeve 2.Then, heating muff 2 is socketed on liquid goods pipe 1, rotary heating casing 2, is located at hot oil inlet 2-1
In the lower section of heating muff 2, hot oil outlet 2-2 is located at the top of heating muff 2, can make deep fat by way of low in and high out
The accommodating space formed into heating muff 2 and liquid goods pipe 1, makes deep fat fully be flowed in accommodating space, with 1 outer wall of liquid goods pipe
Come into full contact with, the liquid goods in liquid goods pipe 1 can be carried out fully carrying out heat exchange, preferably reach heating purpose.Then, will seal
Plate 3-1 carries out two-sided fillet welding with liquid goods pipe 1, and then heating muff 2 and sealing plate 3-1 carries out oozing melting welding, forms pair of an entirety
Wall pipe.Finally, deep fat is entered into accommodating space by hot oil inlet 2-1, hot oil medium does not arrhea through accommodating space, fully to liquid goods
Heated, reduce energy waste, deep fat is carried out after fully carrying out heat exchange with the liquid goods in liquid goods pipe 1, by hot oil outlet 2-2
Discharge, can be the liquid in liquid goods pipe on the liquid goods in cargo hold liquid goods pipe from liquid level in cabin influences and is sufficiently heated
Goods provides heat source, liquid goods viscosity is reduced, easy to loading, unloading goods.
Meanwhile the liquid goods pipe 1 of the application, heating muff 2, the material selection of sealing plate 3-1 and support round steel 4-1 should meet phase
The requirement of classification society is answered, Welding Testing requirement will also meet code requirement, to produce the pipe fitting of qualification.For larger liquid goods
Cabin, the liquid goods double-wall pipe of such a pattern, can between pipe extra bus batch making, carry out pressure test, peace of going on board after weld inspection
Dress, reduces a large amount of site weldings and weld inspection workload.The application liquid goods double-wall pipe makes simple, experiment conveniently, economy
Good, the step of making this double-wall pipe, is simple, and difficulty of construction is small, can batch be made, be tested and inspection declaration between pipe extra bus, so
Go on board again afterwards installation.Reduce substantial amounts of site welding and examine work, save production cost, good economy performance.
It should be noted last that above embodiment is merely illustrative of the technical solution of the present invention and unrestricted,
Although the present invention is described in detail with reference to example, it will be understood by those of ordinary skill in the art that, can be to the present invention
Technical solution technical scheme is modified or replaced equivalently, without departing from the spirit and scope of technical solution of the present invention, it should all cover
Among scope of the presently claimed invention.
Claims (10)
- A kind of 1. liquid goods double-wall pipe, it is characterised in that including：Liquid goods pipe (1)；Heating muff (2), is socketed on the liquid goods pipe (1), offered on the heating muff (2) hot oil inlet (2-1) and Hot oil outlet (2-2)；Locking device (3), is arranged on the heating muff (2) both ends, and the locking device (3) is connected with the liquid goods pipe (1).
- 2. liquid goods double-wall pipe according to claim 1, it is characterised in that：The hot oil inlet (2-1) is arranged on the lower section of the heating muff (2), and the hot oil outlet (2-2) is arranged on described The top of heating muff (2).
- 3. liquid goods double-wall pipe according to claim 1, it is characterised in that the locking device includes：Sealing plate (3-1), is arranged on the heating muff (2) both ends, and the sealing plate (3-1) is connected with the liquid goods pipe (1).
- 4. liquid goods double-wall pipe according to claim 1, it is characterised in that the liquid goods double-wall pipe further includes：Support device (4), first end are arranged on the liquid goods pipe (1), and second end is contacted with the heating muff (2).
- 5. liquid goods double-wall pipe according to claim 4, it is characterised in that the support device includes：Round steel (4-1) is supported, first end is arranged on the liquid goods pipe (1), and second end is contacted with the heating muff (2).
- A kind of 6. production method of liquid goods double-wall pipe, based on the liquid goods double-wall pipe described in claim 1, it is characterised in that described The production method of liquid goods double-wall pipe comprises the following steps：Heating muff (2) is socketed on liquid goods pipe, it is accommodating that one is formed between the heating muff (2) and the liquid goods pipe (1) Space；At the heating muff (2) both ends, locking device (3) is set；Deep fat passes sequentially through the hot oil inlet opened up on the heating muff (2), the accommodating space enters the heating muff (2) hot oil outlet opened up on；The deep fat heats the liquid goods pipe (1).
- 7. the production method of liquid goods double-wall pipe according to claim 6, it is characterised in that described to be socketed in heating muff Include on liquid goods pipe：Before heating muff (2) is socketed on liquid goods pipe (1), support device (4) is set on the liquid goods pipe (1).
- 8. the production method of liquid goods double-wall pipe according to claim 6, it is characterised in that：The maximum outside diameter of the support device (4) is less than the internal diameter of the heating muff (2).
- 9. the production method of liquid goods double-wall pipe according to claim 6, it is characterised in that described to be socketed in heating muff Include on liquid goods pipe：After heating muff (2) is socketed on liquid goods pipe (1), the heating muff (2) is rotated, makes the hot oil inlet (2- 1) it is located at and is located at the top of the heating muff (2) in the lower section of the heating muff (2), the hot oil outlet (2-2).
- 10. the production method of liquid goods double-wall pipe according to claim 6, it is characterised in that：The locking device (4) and the distance at liquid goods pipe (1) both ends are 150-250mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710978893.0A CN107902047A (en) | 2017-10-19 | 2017-10-19 | A kind of liquid goods double-wall pipe and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710978893.0A CN107902047A (en) | 2017-10-19 | 2017-10-19 | A kind of liquid goods double-wall pipe and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107902047A true CN107902047A (en) | 2018-04-13 |
Family
ID=61841565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710978893.0A Pending CN107902047A (en) | 2017-10-19 | 2017-10-19 | A kind of liquid goods double-wall pipe and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107902047A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110816757A (en) * | 2019-10-23 | 2020-02-21 | 中船澄西船舶修造有限公司 | Liquid cargo conveying pipeline on chemical ship |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201255276Y (en) * | 2008-09-11 | 2009-06-10 | 浙江美通机械制造有限公司 | Double-layer highly effective insulating pipe |
| KR101437560B1 (en) * | 2013-04-24 | 2014-09-04 | 주식회사 카이저제빙기 | A heat exchanger for water cooling system |
| CN104154374A (en) * | 2014-07-30 | 2014-11-19 | 张家港迪威高压管件有限公司 | Heatable double-layer pipe fitting |
| CN204901111U (en) * | 2015-07-31 | 2015-12-23 | 山东聊城鲁西硝基复肥有限公司 | Compound conveyer pipe of multilayer |
| CN105201416A (en) * | 2015-09-08 | 2015-12-30 | 宝鸡石油钢管有限责任公司 | Titanium alloy heat-insulation oil pipe and producing method thereof |
| CN106322000A (en) * | 2016-11-14 | 2017-01-11 | 中国船舶重工集团公司第七研究所 | Liquefied natural gas power driving vessel gas supply system double-wall pipe construction process |
-
2017
- 2017-10-19 CN CN201710978893.0A patent/CN107902047A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201255276Y (en) * | 2008-09-11 | 2009-06-10 | 浙江美通机械制造有限公司 | Double-layer highly effective insulating pipe |
| KR101437560B1 (en) * | 2013-04-24 | 2014-09-04 | 주식회사 카이저제빙기 | A heat exchanger for water cooling system |
| CN104154374A (en) * | 2014-07-30 | 2014-11-19 | 张家港迪威高压管件有限公司 | Heatable double-layer pipe fitting |
| CN204901111U (en) * | 2015-07-31 | 2015-12-23 | 山东聊城鲁西硝基复肥有限公司 | Compound conveyer pipe of multilayer |
| CN105201416A (en) * | 2015-09-08 | 2015-12-30 | 宝鸡石油钢管有限责任公司 | Titanium alloy heat-insulation oil pipe and producing method thereof |
| CN106322000A (en) * | 2016-11-14 | 2017-01-11 | 中国船舶重工集团公司第七研究所 | Liquefied natural gas power driving vessel gas supply system double-wall pipe construction process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110816757A (en) * | 2019-10-23 | 2020-02-21 | 中船澄西船舶修造有限公司 | Liquid cargo conveying pipeline on chemical ship |
| CN110816757B (en) * | 2019-10-23 | 2020-09-18 | 中船澄西船舶修造有限公司 | Liquid cargo conveying pipeline on chemical ship |
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Application publication date: 20180413 |