CN103363293B - Thermal insulation flange on low-temperature thermal-insulation gas cylinder for liquefied natural gas - Google Patents
Thermal insulation flange on low-temperature thermal-insulation gas cylinder for liquefied natural gas Download PDFInfo
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- CN103363293B CN103363293B CN201310339776.1A CN201310339776A CN103363293B CN 103363293 B CN103363293 B CN 103363293B CN 201310339776 A CN201310339776 A CN 201310339776A CN 103363293 B CN103363293 B CN 103363293B
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Abstract
The invention discloses a thermal insulation flange on a low-temperature thermal-insulation gas cylinder for liquefied natural gas, and relates to the technical field of mechanical connection structures. The thermal insulation flange adopts a key technology of disposing an annular groove between the outer circle and the inner circle of a flange body. The thermal insulation flange on the low-temperature thermal-insulation gas cylinder comprises a cylinder body shell front cover, a thermal insulation flange and a clad pipe. The insulation flange is in a structure that the annular groove is disposed between the outer circle and the inner circle of the flange body. The cylinder body shell front cover and the outer circle of the thermal insulation flange are connected in a welding manner. The inner circle of the thermal insulation flange is fixed to the outer wall of the clad pipe. The flange has a function of thermal insulation, thus reducing thermal conduction. The thermal insulation flange on the low-temperature thermal-insulation gas cylinder can reduce popping of safety valves, protect the clad pipe from being burned and enhance thermal insulation property of the cylinder body.
Description
Technical field
Adiabatic flange on LNG cold insulated gas cylinder of the present invention, relates to field of mechanical technique; In particular to the technical field of mechanical connecting structure; Be specifically related to the adiabatic flange technical field on LNG cold insulated gas cylinder.
Background technique
At present, the petroleum resources in the whole world increasingly reduce, the Abgasgesetz but increasingly stringent of simultaneously various countries.Relative to rock gas, its outstanding advantages is: have good low emission characteristic and low fuel consumption, can meet more and more stricter emission regulation demands; Meanwhile, natural gas resource enriches, cheap.Therefore natural gas resource obtains and develops endlessly, and receives promotion and application widely in many countries.Wherein the most extensively, the most generally natural gas engine is applied to as internal-combustion engine alternative fuel.Specifically, be that main fuel, on a small quantity diesel oil make motor do work as pilot fuel exactly with rock gas, this motor is referred to as duel fuel engine (i.e. natural gas engine).The main fuel of natural gas engine is rock gas, it be by natural gas storing in LNG cold insulated gas cylinder (be according to vehicle-mounted or boat-carrying space and specially designed), use for natural gas engine.On LNG cold insulated gas cylinder, a critical component is exactly flange.Be originally material with stainless steel, to be the flange of the existing known technology of the entity state deficiency, the defect that exist with drawback be structure: high temperature can be produced when flange welds with bottle shell front head, because its structure of flange of original existing known technology is entity state, heat-transfer rate is fast, is easy to composite pipe of burning; In LNG cold insulated gas cylinder, LNG is as a kind of liquefied gas at low temp, be in fluid temperature in bottle at 162 DEG C, the temperature outside bottle generally more than-10 DEG C, the so large temperature difference, originally structure is the steel flange of entity state, will produce very large heat transfer, heat transfer is very large, causes the relative evaporation of liquid in bottle to increase, the frequent take-off of safety valve of bottle, has a strong impact on the Economy of product.Based on the professional knowledge of inventor and working experience and the unremitting pursue to cause, conscientiously and fully investigating, understanding, analyzing, summing up, studying on existing known technology and present situation basis, take " between the cylindrical of flange body and inner circle, toroidal cavity is set " key technology, succeed in developing the present invention, solve the deficiency of existing known technology and present situation existence, defect and drawback.
Summary of the invention
The present invention adopts " arranging toroidal cavity between the cylindrical of flange body and inner circle " key technology.Be made up of bottle shell front head, adiabatic flange, composite pipe, adiabatic flange is be provided with toroidal cavity shape structure between the cylindrical of flange body and inner circle, the cylindrical of bottle shell front head and adiabatic flange is welded to connect, and the inner circle of adiabatic flange is fixedly connected with the outer wall of composite pipe.Make flange play heat-blocking action thus reduce heat transfer.
The object reached by the present invention is: 1., take " arranging toroidal cavity between the cylindrical of flange body and inner circle " key technology, provide the new equipment of " the adiabatic flange on LNG cold insulated gas cylinder "; 2., make the unique practicality of design of the present invention, design science is reasonable, simple and ingenious structure, Be very effective are reliable; 3., make the present invention give full play to toroidal cavity effect set between the cylindrical of flange body and inner circle, solve the deficiency of existing known technology and present situation existence, defect and drawback; 4. the toroidal cavity, arranged between the cylindrical of flange body of the present invention and inner circle, serve the effect of cavity isolation, although can produce high temperature when flange welds with bottle shell front head, the groove because of its structure is cavity state, heat-transfer rate is slow, composite pipe of can not burning; 5. the toroidal cavity, arranged between the cylindrical of flange body of the present invention and inner circle, serve the effect of cavity isolation, in LNG cold insulated gas cylinder, LNG is as a kind of liquefied gas at low temp, although the temperature of the fluid temperature be in bottle outside 162 DEG C, bottles is generally more than-10 DEG C, although the temperature difference is very large, but the groove because of its structure is cavity state, so heat transfer is very low, in bottle, the relative evaporation of liquid reduces, the little take-off of safety valve of bottle, can not affect the Economy of product; 6., the present invention is convenient to be made low, easy to use and is beneficial to wide popularization and application.
For achieving the above object, technological scheme provided by the invention is:
An adiabatic flange on LNG cold insulated gas cylinder, is made up of bottle shell front head, adiabatic flange, composite pipe;
Adiabatic flange on described LNG cold insulated gas cylinder, described adiabatic flange is be provided with toroidal cavity shape structure between the cylindrical of flange body and inner circle;
Adiabatic flange on described LNG cold insulated gas cylinder, the cylindrical of its bottle shell front head and adiabatic flange is welded to connect, and the inner circle of its adiabatic flange is fixedly connected with the outer wall of composite pipe.
Adiabatic flange on described LNG cold insulated gas cylinder, described bottle shell front head is the bottle shell front head of LNG cold insulated gas cylinder, and described composite pipe is tubular structure.
Adiabatic flange on described LNG cold insulated gas cylinder, the bottle chamber of described bottle shell front head communicates with the toroidal cavity of adiabatic flange.
Adiabatic flange on described LNG cold insulated gas cylinder, described LNG cold insulated gas cylinder is placed and is fixed on Motor Vehicle.
Adiabatic flange on described LNG cold insulated gas cylinder, described LNG cold insulated gas cylinder is placed and is fixed on steamer.
Owing to have employed technological scheme provided by the invention.Owing to present invention employs " arranging toroidal cavity between the cylindrical of flange body and inner circle " key technology.Because the present invention is made up of bottle shell front head, adiabatic flange, composite pipe, adiabatic flange is be provided with toroidal cavity shape structure between the cylindrical of flange body and inner circle, the cylindrical of bottle shell front head and adiabatic flange is welded to connect, and the inner circle of adiabatic flange is fixedly connected with the outer wall of composite pipe.Make flange play heat-blocking action thus reduce heat transfer.Make the present invention compared with existing known technology and present situation, the beneficial effect of acquisition is:
1, this invention takes " between the cylindrical of flange body and inner circle, toroidal cavity is set " key technology, provide the new equipment of " the adiabatic flange on LNG cold insulated gas cylinder ".
2, make the unique practicality of design of the present invention, design science is reasonable, simple and ingenious structure, Be very effective are reliable.
3, the present invention has given full play to toroidal cavity effect set between the cylindrical of flange body and inner circle, solves the deficiency of existing known technology and present situation existence, defect and drawback.
4, the toroidal cavity arranged between the cylindrical of flange body of the present invention and inner circle, serves the effect of cavity isolation, when flange welds with bottle shell front head, although high temperature can be produced, but the groove because of its structure is cavity state, heat-transfer rate is slow, composite pipe of can not burning.
5, the toroidal cavity arranged between the cylindrical of flange body of the present invention and inner circle, serve the buffer action produced in the mode of cavity, in LNG cold insulated gas cylinder, LNG is as a kind of liquefied gas at low temp, although the temperature of the fluid temperature be in bottle outside 162 DEG C, bottles is generally more than-10 DEG C, although the temperature difference is very large, but the groove because of its structure is cavity state, so heat transfer is very low, in bottle, the relative evaporation of liquid just reduces, so the little take-off of the safety valve of bottle, the Economy of product substantially can not be affected.
6, the toroidal cavity arranged between the cylindrical of flange body of the present invention and inner circle serves more firmly supporting effect in the mode of cavity.
7, due to described in above each bar of the present invention, thus the Security of product is further increased.
8, the present invention is convenient to be made low, easy to use and is beneficial to wide popularization and application.
Accompanying drawing explanation
Fig. 1 is the generalized section of the specific embodiment of the invention.
Fig. 2 is the generalized section of adiabatic flange in the specific embodiment of the invention.Fig. 3
Fig. 3 is the principle schematic of adiabatic flange in the specific embodiment of the invention.
Label in figure: 1, bottle shell front head, 2, adiabatic flange, 3, composite pipe.
Embodiment
Below in conjunction with Figure of description, the present invention is described in detail.Shown in Figure of description 1,2,3:
An adiabatic flange on LNG cold insulated gas cylinder, is made up of bottle shell front head 1, adiabatic flange 2, composite pipe 3;
Adiabatic flange on described LNG cold insulated gas cylinder, described adiabatic flange 2 is be provided with toroidal cavity shape structure between the cylindrical of flange body and inner circle;
Adiabatic flange on described LNG cold insulated gas cylinder, its bottle shell front head 1 is welded to connect with the cylindrical of adiabatic flange 2, and the inner circle of its adiabatic flange 2 is fixedly connected with the outer wall of composite pipe 3.
Adiabatic flange on described LNG cold insulated gas cylinder, described bottle shell front head 1 is the bottle shell front head of LNG cold insulated gas cylinder, and described composite pipe 3 is tubular structure.
Adiabatic flange on described LNG cold insulated gas cylinder, the bottle chamber of described bottle shell front head 1 communicates with the toroidal cavity of adiabatic flange 2.
Adiabatic flange on described LNG cold insulated gas cylinder, described LNG cold insulated gas cylinder is placed and is fixed on Motor Vehicle.
Adiabatic flange on described LNG cold insulated gas cylinder, described LNG cold insulated gas cylinder is placed and is fixed on steamer.
In above-mentioned specific implementation process: described LNG cold insulated gas cylinder is placed and is fixed on Motor Vehicle and implements; Described LNG cold insulated gas cylinder is placed and is fixed on steamer and implements; All obtain the good result of expection.
The foregoing is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention; The those of ordinary skill of all industry all can smooth and easyly be implemented, but not departing from technical solution of the present invention and make the equivalent variations of differentiation, is Equivalent embodiments of the present invention, all still belongs to technological scheme of the present invention.
Claims (5)
1. the adiabatic flange on LNG cold insulated gas cylinder, is characterized in that: be made up of bottle shell front head (1), adiabatic flange (2), composite pipe (3);
Adiabatic flange on described LNG cold insulated gas cylinder, is provided with toroidal cavity shape structure between the cylindrical that described adiabatic flange (2) is flange body and inner circle;
Adiabatic flange on described LNG cold insulated gas cylinder, its bottle shell front head (1) is welded to connect with the cylindrical of adiabatic flange (2), and the inner circle of its adiabatic flange (2) is fixedly connected with the outer wall of composite pipe (3).
2. the adiabatic flange on LNG cold insulated gas cylinder according to claim 1, is characterized in that: the bottle shell front head that described bottle shell front head (1) is LNG cold insulated gas cylinder, described composite pipe (3) is tubular structure.
3. the adiabatic flange on LNG cold insulated gas cylinder according to claim 1, is characterized in that: the bottle chamber of described bottle shell front head (1) communicates with the toroidal cavity of adiabatic flange (2).
4. the adiabatic flange on LNG cold insulated gas cylinder according to claim 1, is characterized in that: described LNG cold insulated gas cylinder is placed and is fixed on Motor Vehicle.
5. the adiabatic flange on LNG cold insulated gas cylinder according to claim 1, is characterized in that: described LNG cold insulated gas cylinder is placed and is fixed on steamer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310339776.1A CN103363293B (en) | 2013-08-06 | 2013-08-06 | Thermal insulation flange on low-temperature thermal-insulation gas cylinder for liquefied natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310339776.1A CN103363293B (en) | 2013-08-06 | 2013-08-06 | Thermal insulation flange on low-temperature thermal-insulation gas cylinder for liquefied natural gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103363293A CN103363293A (en) | 2013-10-23 |
| CN103363293B true CN103363293B (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310339776.1A Active CN103363293B (en) | 2013-08-06 | 2013-08-06 | Thermal insulation flange on low-temperature thermal-insulation gas cylinder for liquefied natural gas |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279140B (en) | 2013-07-12 | 2018-08-24 | 西港能源有限公司 | Cryogenic pump flange |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074990A (en) * | 1992-01-28 | 1993-08-04 | 艾多加拿大有限公司 | The adapter of fluid pressure vessel and the connected system of lining |
| CN201149164Y (en) * | 2007-12-26 | 2008-11-12 | 北京航天试验技术研究所 | Vacuum multi-layer heat insulation low temperature container with manhole structure |
| KR20130012334A (en) * | 2011-07-25 | 2013-02-04 | 주식회사 화인텍 | Radiarion cover for high pressure gas cylinder |
| CN203404608U (en) * | 2013-08-06 | 2014-01-22 | 北京天海工业有限公司 | Heat insulation flange on liquefied natural gas low-temperature heat-insulation gas bottle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO326109B1 (en) * | 2007-06-14 | 2008-09-22 | Compressed Energy Tech As | Endeboss and a composite pressure tank |
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2013
- 2013-08-06 CN CN201310339776.1A patent/CN103363293B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074990A (en) * | 1992-01-28 | 1993-08-04 | 艾多加拿大有限公司 | The adapter of fluid pressure vessel and the connected system of lining |
| CN201149164Y (en) * | 2007-12-26 | 2008-11-12 | 北京航天试验技术研究所 | Vacuum multi-layer heat insulation low temperature container with manhole structure |
| KR20130012334A (en) * | 2011-07-25 | 2013-02-04 | 주식회사 화인텍 | Radiarion cover for high pressure gas cylinder |
| CN203404608U (en) * | 2013-08-06 | 2014-01-22 | 北京天海工业有限公司 | Heat insulation flange on liquefied natural gas low-temperature heat-insulation gas bottle |
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| CN103363293A (en) | 2013-10-23 |
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