CN106813036B - A kind of gas fuel pipe compensator with double-walled construction - Google Patents
A kind of gas fuel pipe compensator with double-walled construction Download PDFInfo
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- CN106813036B CN106813036B CN201710053772.5A CN201710053772A CN106813036B CN 106813036 B CN106813036 B CN 106813036B CN 201710053772 A CN201710053772 A CN 201710053772A CN 106813036 B CN106813036 B CN 106813036B
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- flange
- pipe
- double
- compensator
- tube
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/03—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube comprising two or more bellows
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipeline Systems (AREA)
Abstract
The present invention provides a kind of gas fuel pipe compensator with double-walled construction, the flange being oppositely arranged including two, the shield of two flange outer faces is set, outward corrugated tube and inner corrugated pipe between two flanges are set, and the diameter of outward corrugated tube is greater than the diameter of inner corrugated pipe, inner corrugated pipe inner surface and two flanges form the compensator inner cavity for walking gaseous fuel, inner corrugated pipe outer surface, the compensator exocoel for walking air is formed between outward corrugated tube inner surface and two flanges, waist hole is along the circumferential direction evenly arranged on each flange, and waist hole is communicated with compensator exocoel, one end of the shield is connected with a flange, the other end is that free end rides on another flange.The simple structure and convenient processing of gas fuel pipe compensator designed by the present invention with double-walled construction can effectively improve gas/double fuel powered ship air supply system reliability with securely and reliably, ensure the safety of vessel motion and engineer.
Description
Technical field
The present invention relates to a kind of gas fuel pipe more particularly to a kind of gas fuel pipe compensation with double-walled construction
Device is used for watercraft engine room.
Background technique
Safety problem in shipping transport is the most important thing.Developing internal combustion engine alternative fuel is to realize its energy-saving and emission-reduction very
One of effective means, are of great significance to the oil crisis and environmental pollution that solve increasingly severeer.Gaseous fuel is (such as day
Right gas, oil gas), have many advantages, such as that combustion cleaning, calorific value are big and become the first choice of the following internal combustion engine alternative fuel.It is existing with
The ship of gaseous fuel as a source of power, the mostly of gaseous fuel feeding pipe use are single-walled pipes, abrasion or mechanical oscillation
Directly act on tube wall, when gas fuel pipe because abrasion or mechanical oscillation rupture when, a large amount of gaseous fuel meeting
It leaks into watercraft engine room and causes security risk；If after watercraft engine room catches fire, fire source can directly contact gaseous fuel
Pipeline and be likely to occur explosion, therefore gaseous fuel feeding pipe using double-wall pipe be prevention the important of these security risks arrange
It applies, but the double-walled gaseous fuel feeding pipe on ship is Hard link mostly at present, Hard link does not buffer, when environment becomes
Change cause to expand with heat and contract with cold, or due to stress concentration deform after, gaseous fuel feeding pipe can be made to deform even
Rupture.These be all watercraft engine room there is very big security risk.
The patent of publication number CN1773154A is related to a kind of double-walled T-type pipe for refrigeration system, passes through the expansion of outer tube
Structure is able to achieve effective conversion of heat in refrigeration system；The patent of CN102434729A is related to a kind of with crooked position
Double-wall pipe fills lumen by setting metal foam spacer element between inner tubal wall and outer tube wall, has reached the mesh of barrier
's；The patent of publication number CN101598249A, publication number CN201090850Y and publication number CN201590294U all refer to one kind
Fire-retardant sealed double-wall pipe has been haved the function that fire-retardant by the structure of inside and outside two layers of tube wall；Publication number CN201764141U's is special
Benefit relates to a kind of double-wall pipe, by it is a kind of be segmented internal layer structure so that when heated portion inner layer structure it is melting adhered
On object, sealing protection is achieved the purpose that；The patent of CN202746800U is related to a kind of double-wall pipe of wound form, by inside
A kind of reinforcing rib structure of winding is set between tube wall and outer tube wall, increases the ring stiffness of pipeline.
Above-mentioned patent is the structure using a kind of two-chamber pipeline, relative to the present invention, though existing double-walled two-chamber pipeline
Play the role of fire-retardant, but is flexible conduit mostly, can not achieve the purpose for preventing gaseous fuel from leaking, cannot play compensation
Effect, also may not apply to watercraft engine room.
Summary of the invention
The purpose of the invention is to provide a kind of gas fuel pipe compensator with double-walled construction.
The object of the present invention is achieved like this: including two flanges being oppositely arranged, being arranged in two flange outer faces
Shield, the outward corrugated tube and inner corrugated pipe that are arranged between two flanges, and the diameter of outward corrugated tube is greater than inner corrugated pipe
Diameter, inner corrugated pipe inner surface and two flanges form the compensator inner cavity for walking gaseous fuel, inner corrugated pipe outer surface, outer ripple
The compensator exocoel for walking air is formed between pipe internal surface and two flanges, is along the circumferential direction evenly arranged with waist on each flange
Hole, and waist hole is communicated with compensator exocoel, it is another that one end of the shield is connected with a flange, the other end is that free end rides over
On a flange.
The invention also includes structure features some in this way:
1. the length of the inner corrugated pipe is greater than the length of outward corrugated tube, be provided on each flange respectively with inner corrugated pipe
The short tube one and short tube two connected with outward corrugated tube, the length of short tube one are less than the length of short tube two, and the internal diameter of short tube one and
Wall thickness is identical as the internal diameter of inner corrugated pipe and wall thickness respectively, the internal diameter and wall thickness of short tube two respectively with the internal diameter of outward corrugated tube and wall
It is thick identical.
2. being provided with an outer angular cut on the end face at the both ends of outward corrugated tube, the end face setting of the end of each short tube two
There are the outer angular cut and an inverse bavel incision of intersection, and the outer angular cut of the inverse bavel incision of short tube two and outward corrugated tube cooperates, it is short
The outer angular cut of pipe two and the outer angular cut of outward corrugated tube form the taper external groove for accepting solder；The both ends of inner corrugated pipe
End face on be provided with an inverse bavel incision, the end face of the end of each short tube one is provided in an outer angular cut and one for intersection
Angular cut, and the inverse bavel incision of the outer angular cut of short tube one and inner corrugated pipe cooperates, the interior oblique notch and interior ripple of short tube one
The inverse bavel incision of pipe forms the taper inner groovy for accepting solder.
3. being additionally provided with a groove in the outer rim of each flange.
4. being additionally provided with the bolt hole connecting with double-wall pipe on each flange, and also set up in flange and double-wall pipe junction
There is sealing ring.
Compared with prior art, the beneficial effects of the present invention are: the designed gas fuel pipe with double-walled construction
The simple structure and convenient processing of compensator can effectively improve gas/double fuel powered ship air supply system with securely and reliably
Reliability ensures the safety of vessel motion and engineer.The present invention connects firmly to solve the use of double-walled gaseous fuel feeding pipe
After connecing, cause to expand with heat and contract with cold when environment changes, or since stress is concentrated, caused gaseous fuel feeding pipe deformation is very
To the problem of rupture；It can be connected to the exocoel of the double-walled gas fuel pipe of watercraft engine room simultaneously, convenient for ventilation, prevent gaseous fuel
Security risk caused by assembling, to improve vessel motion safety.
Detailed description of the invention
Fig. 1 is the cross-sectional view of gas fuel pipe compensator overall structure of the invention；
Fig. 2 is the side view of flange of the invention；
Fig. 3 a and Fig. 3 b are respectively the cross-sectional view of two flanges of the invention；
Fig. 4 is the cross-sectional view of outward corrugated tube of the invention；
Fig. 5 is the cross-sectional view of inner corrugated pipe of the invention；
Fig. 6 is that interior outward corrugated tube of the invention with short tube on flange docks and weld schematic diagram.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing.
The present invention provides a kind of gas fuel pipe compensator with double-walled construction, mainly include flange 2 and flange 14,
Outward corrugated tube 8, inner corrugated pipe 9, shield 12, screw 11 and sealing ring 3,4,15 and 17 are constituted.Gas fuel pipe compensator two
Two sections of short tubes identical with inner corrugated pipe 9 and 8 inside diameter of straight pipe section of outward corrugated tube and wall thickness are all respectively provided on side flange 2 and 14
26,38 and 23,35, it is connect respectively with the straight pipe of inner corrugated pipe 9 and outward corrugated tube 8；By outward corrugated tube 8, inner corrugated pipe 9 and two
Side flange 2 and 14 forms two chambers: walking gaseous fuel, inner corrugated pipe in the inner cavity 5 that interior ripple 9 and two side flanges 2 and 14 are formed
9, air is walked in the exocoel 10 that outward corrugated tube 8 and two side flanges 2 and 14 are formed, it is outer in order to ensure gas fuel pipe compensator
The connection of the exocoel of chamber 10 and double-wall pipe is all machined with multiple uniformly distributed waist holes 6 and 16 on flange 2 and flange 14.Gaseous fuel
A shield 12 is cased on the outside of compensation of pipeline device, one end of shield 12 is fixed on flange 2 by screw 11, and shield 12 is another
One end is free end, when the length of gas fuel pipe compensator changes with the variation of temperature, shield 12 it is another
One end can on flange 14 free extension.
Two side flange 2 of gas fuel pipe compensator and 14 shape of flange are consistent with structure size, but the flange of flange 2
Multiple bolts hole 22 are machined on disk periphery.Twice are machined on 2 one side end face of flange for installing O-ring seals 3 and 4
Annular groove 20 and 21 has one section of short tube one 26 and one identical with 9 inside diameter of straight pipe section of inner corrugated pipe and wall thickness on another side end face
Section short tube 2 23 identical with outer 8 inside diameter of straight pipe section of ripple and wall thickness；Twice are all machined on 14 1 side end face of flange for pacifying
The annular groove 33 and 34 of O-ring seals 15 and 17 is filled, has one section and 9 inside diameter of straight pipe section of inner corrugated pipe and wall thickness on another side end face
Identical short tube 1 and one section of short tube 2 35 identical with outer 8 inside diameter of straight pipe section of ripple and wall thickness, and on flange 2 and flange 14
The length for the short tube 2 23 and 35 being relatively large in diameter is greater than the length of the lesser short tube one 26 and 38 of diameter；On flange 2 and flange 14
It is machined with multiple uniformly distributed waist holes 6 and 16 respectively, waist hole 6 and 16 is located at inner corrugated pipe 9 and outward corrugated tube 8 is formed in exocoel 10
Between position, after gas fuel pipe compensator and double-wall pipe are assembled together, inner corrugated pipe 9, outward corrugated tube 8, flange 2 and method
The exocoel connection of exocoel 10 and double-wall pipe that orchid 14 is formed.
Two side flange 2 of gas fuel pipe compensator be connected respectively with inner corrugated pipe 9 with outward corrugated tube 8 on flange 14
All there are two 45 ° of angular cuts for processing on the end face of two sections of short tubes one 26,38 and short tube 2 23,35: inverse bavel incision 25 is (in short tube 23
On two), 27 (on short tubes 1), 37 (on short tubes 2 35) and 39 (on short tubes 1) and outer angular cut 24 be (short
On pipe 2 23), 28 (on short tubes 1), 36 (on short tubes 2 35) and 40 (on short tubes 1).On flange 2 and flange 14
The length for the end face of short tube 2 23 and 35 inverse bavel incision 25 and 37 being relatively large in diameter is the 1/2 of the outer length of angular cut 24 and 36 respectively,
And the length of the lesser end face of short tube one 26 and 38 inverse bavel incision 27 and 39 of diameter is outer angular cut respectively on flange 2 and flange 14
2 times of 28 and 40 length.The end of short tube 2 23 and 35 being relatively large in diameter on two side flange 2 of gas fuel pipe compensator and flange 14
The outer angular cut 28 and 40 of the lesser end face of short tube one 26 and 38 of the inverse bavel incision 25 and 37 and diameter in face only plays centering
And positioning action.
Inner corrugated pipe 9 and outward corrugated tube 8 are an integral structure, and the length of inner corrugated pipe 9 is greater than the length of outward corrugated tube 8
Degree；And one 45 ° of inverse bavel incision 31 and 32 is respectively machined on the two sides straight pipe end face of inner corrugated pipe 9, and outward corrugated tube 8
One 45 ° of outer angular cut 29 and 30 is respectively machined on the straight pipe end face of two sides.It assembles and positions in gas fuel pipe compensator
When, the lesser short tube one of diameter on the inverse bavel incision 31 and 32 and flange 2 and flange 14 on 9 two sides straight pipe end face of inner corrugated pipe
The outer angular cut 28 and 40 of 26 and 38 end faces matches, the outer angular cut 29 and 30 on 8 two sides straight pipe end face of outward corrugated tube with
The inverse bavel incision 25 and 37 for the end face of short tube 2 23 and 35 being relatively large in diameter on flange 2 and flange 14 matches.
It is welded by the way of butt welding in the welding of gas fuel pipe compensator, by interior 9 pipe two sides straight tube of ripple
It is constituted between the inverse bavel incision 27 and 39 of the lesser end face of short tube one 26 and 38 of diameter on the inverse bavel incision 31 and 32 and flange of section
One taper inner groovy, for accepting solder, therefore inner corrugated pipe 9 is the same as the lesser short tube 1 of diameter on flange 2 and flange 14
And between 38 by the way of interior welds；By the outer angular cut 29 and 30 and flange 2 and flange of 8 two sides straight pipe of outward corrugated tube
A taper external groove is constituted between the outer angular cut 24 and 36 for the end face of short tube 2 23 and 35 being relatively large in diameter on 14, for accepting
Solder, therefore outward corrugated tube 8 is the same as the side for using outside weldings between the short tube 2 23 and 35 being relatively large in diameter on flange 2 and flange 14
Formula.
The flange 2 and flange 14 of gas fuel pipe compensator two sides are circle, are added on the ring flange periphery of flange 2
Work has multiple threaded holes 22, and one end of gas fuel pipe compensator shield 12 is fixed on flange 2 by screw 11, and protects
The other end of cover 12 is free end, when gas fuel pipe compensator length changes with the variation of temperature, shield
12 other end free extension, flexible maximum length can be less than the 1/2 of 14 width of flange on flange 14.
It is machined with 19 He of a groove respectively on the flange 2 at the both ends of gas fuel pipe compensator and the ring flange of flange 14
18, in each component part assembling of gas fuel pipe compensator, for determining the relative position of each section, so that it is guaranteed that gas
The one-to-one positional relationship of two side flange 2 of fuel conduit compensator and waist hole 6 and waist hole 16 on flange 14.
There are multiple bolts hole 1 and 13 on flange 2 and flange 14, double-walled gas fuel pipe compensator and double-wall pipe pass through spiral shell
The mode of bolt is attached, inside and outside annular groove 20,21 and 33,34 on the flange 2 and flange 14 of double-walled gas fuel pipe compensator
O-ring seals 3,4 and 15,17 are inside respectively provided with, for the sealing of gas fuel pipe compensator inner cavity 5 and exocoel 10, and with
The double-wall pipe end face of flange of double-walled gas fuel pipe compensator connection is plane.
Further, the waist hole on two side flange of gas fuel pipe compensator of the invention can be replaced with multiple apertures
Generation, but can farthest to reduce air intracavitary outside gas fuel pipe compensator for the quantity of aperture and valid circulation area
Flow resistance.Flange, inner corrugated pipe and the outward corrugated tube of gas fuel pipe compensator of the invention all use stainless steel
Material.
To sum up, the present invention relates to a kind of gas fuel pipe compensator with double-walled construction mainly includes flange, external wave
Line pipe, inner corrugated pipe, shield, screw and sealing ring are constituted.On two side flange of gas fuel pipe compensator all with two sections with
Inner corrugated pipe and outward corrugated tube inside diameter of straight pipe section and the identical short tube of wall thickness, respectively with the straight pipe of inner corrugated pipe and outward corrugated tube
Connection；Form two chambers by outward corrugated tube, inner corrugated pipe and two side flanges: interior ripple and two side flanges form interior intracavitary flat
Fluid fuel, inner corrugated pipe, outward corrugated tube and two side flanges formed it is outer it is intracavitary walk air, in order to ensure gas fuel pipe compensation
The connection of the exocoel of the exocoel and double-wall pipe of device is machined with multiple waist holes on each flange.Gas fuel pipe compensator
Outside is cased with a shield, and one end of shield is fixed by screws on a side flange, and the other end of shield is free end, works as gas
When the length of fluid fuel compensation of pipeline device changes with the variation of temperature, the other end of shield can be in another side flange
Upper free extension.Length caused by when the present invention can compensate for double-walled gas fuel pipe because of temperature change changes, while it is double
Wall construction makes gaseous fuel air supply system keep good ventilation, can be improved gas/double fuel powered ship operational safety
Property.
Claims (5)
1. a kind of gas fuel pipe compensator with double-walled construction, it is characterised in that: including two flanges being oppositely arranged,
The outward corrugated tube and inner corrugated pipe that the shield of two flange outer faces is set, is arranged between two flanges, and outward corrugated tube
Diameter be greater than the diameter of inner corrugated pipe, inner corrugated pipe inner surface walks the compensator inner cavity of gaseous fuel with the formation of two flanges,
The compensator exocoel for walking air, edge on each flange are formed between inner corrugated pipe outer surface, outward corrugated tube inner surface and two flanges
Circumferencial direction is evenly arranged with waist hole, and waist hole is communicated with compensator exocoel, and one end of the shield is connected with a flange, is another
One end is that free end rides on another flange；The length of the inner corrugated pipe is greater than the length of outward corrugated tube, on each flange
It is provided with the short tube one and short tube two connecting respectively with inner corrugated pipe and outward corrugated tube, the length of short tube one is less than the length of short tube two
Degree, and the internal diameter of short tube one and wall thickness are identical as the internal diameter of inner corrugated pipe and wall thickness respectively, internal diameter and the wall thickness difference of short tube two
It is identical as the internal diameter of outward corrugated tube and wall thickness.
2. a kind of gas fuel pipe compensator with double-walled construction according to claim 1, it is characterised in that: external wave
An outer angular cut is provided on the end face at the both ends of line pipe, the end face of the end of each short tube two is provided with outside the one of intersection tiltedly
Notch and an inverse bavel incision, and the outer angular cut of the inverse bavel incision of short tube two and outward corrugated tube cooperates, the outer angular cut of short tube two
The taper external groove for accepting solder is formed with the outer angular cut of outward corrugated tube；It is respectively provided on the end face at the both ends of inner corrugated pipe
There is an inverse bavel incision, the end face of the end of each short tube one is provided with an outer angular cut and an inverse bavel incision for intersection, and short tube
One outer angular cut and the inverse bavel incision of inner corrugated pipe cooperate, the interior oblique notch of short tube one and the inverse bavel incision shape of inner corrugated pipe
At the taper inner groovy for accepting solder.
3. a kind of gas fuel pipe compensator with double-walled construction according to claim 1 or 2, it is characterised in that:
A groove is additionally provided in the outer rim of each flange.
4. a kind of gas fuel pipe compensator with double-walled construction according to claim 1 or 2, it is characterised in that:
It is additionally provided with the bolt hole connecting with double-wall pipe on each flange, and is additionally provided with sealing ring in flange and double-wall pipe junction.
5. a kind of gas fuel pipe compensator with double-walled construction according to claim 3, it is characterised in that: each
It is additionally provided with the bolt hole connecting with double-wall pipe on flange, and is additionally provided with sealing ring in flange and double-wall pipe junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710053772.5A CN106813036B (en) | 2017-01-24 | 2017-01-24 | A kind of gas fuel pipe compensator with double-walled construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710053772.5A CN106813036B (en) | 2017-01-24 | 2017-01-24 | A kind of gas fuel pipe compensator with double-walled construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106813036A CN106813036A (en) | 2017-06-09 |
| CN106813036B true CN106813036B (en) | 2019-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710053772.5A Active CN106813036B (en) | 2017-01-24 | 2017-01-24 | A kind of gas fuel pipe compensator with double-walled construction |
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| CN (1) | CN106813036B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006337A (en) * | 2017-11-23 | 2018-05-08 | 亚达管道系统股份有限公司 | A kind of double-wall hose |
| CN111255971B (en) * | 2020-01-15 | 2021-11-19 | 中国航发沈阳发动机研究所 | Annular cavity expansion compensator |
| CN111649187A (en) * | 2020-07-09 | 2020-09-11 | 安徽九州云箭航天技术有限公司 | Pipeline compensator with inner support |
| CN113551050B (en) * | 2021-08-31 | 2023-06-06 | 南通世发船舶机械有限公司 | Corrugated pipe valve |
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|---|---|---|---|---|
| US5011194A (en) * | 1988-10-08 | 1991-04-30 | Kawasaki Jukogyo Kabushiki Kaisha | Flexible pipe connecting device for high temperature fluid |
| DE102007038934A1 (en) * | 2007-05-10 | 2008-11-20 | Abb Technology Ag | Device for compensating length changes in pipeline, has compensation chamber whose volume is changeable by length change of pipeline |
| CN203176620U (en) * | 2013-01-30 | 2013-09-04 | 航天晨光股份有限公司 | Flexible connection pipe |
| CN103883833A (en) * | 2014-03-17 | 2014-06-25 | 江苏曙光压力容器有限公司 | Jacketed type corrugated pipe compensator |
| CN106323148A (en) * | 2016-09-29 | 2017-01-11 | 马鞍山钢铁股份有限公司 | Compensator deformation visualizing apparatus |
-
2017
- 2017-01-24 CN CN201710053772.5A patent/CN106813036B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5011194A (en) * | 1988-10-08 | 1991-04-30 | Kawasaki Jukogyo Kabushiki Kaisha | Flexible pipe connecting device for high temperature fluid |
| DE102007038934A1 (en) * | 2007-05-10 | 2008-11-20 | Abb Technology Ag | Device for compensating length changes in pipeline, has compensation chamber whose volume is changeable by length change of pipeline |
| CN203176620U (en) * | 2013-01-30 | 2013-09-04 | 航天晨光股份有限公司 | Flexible connection pipe |
| CN103883833A (en) * | 2014-03-17 | 2014-06-25 | 江苏曙光压力容器有限公司 | Jacketed type corrugated pipe compensator |
| CN106323148A (en) * | 2016-09-29 | 2017-01-11 | 马鞍山钢铁股份有限公司 | Compensator deformation visualizing apparatus |
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|---|---|
| CN106813036A (en) | 2017-06-09 |
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