CN204738889U - Double tube of engine fuel gas supply system connects - Google Patents
Double tube of engine fuel gas supply system connects Download PDFInfo
- Publication number
- CN204738889U CN204738889U CN201520497878.0U CN201520497878U CN204738889U CN 204738889 U CN204738889 U CN 204738889U CN 201520497878 U CN201520497878 U CN 201520497878U CN 204738889 U CN204738889 U CN 204738889U
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- CN
- China
- Prior art keywords
- tube
- double
- gas supply
- supply system
- interior pipe
- 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.)
- Withdrawn - After Issue
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a double tube of engine fuel gas supply system connects. This double tube of engine fuel gas supply system connects includes: the outer tube, the inner tube, its upper segment sets up the inner chamber of outer tube forms the intermediate layer of ventilating, and the flange, it includes: flange board and inner tube sleeve, the central authorities of this flange board have offered the inner tube and have bored a hole, and the fenestrate upper end of inner tube has an outer sealing of tube groove, the hypomere of inner tube inserts this inner tube perforation and forms ventilation gap, the intermediate layer of ventilating communicates with this ventilation gap, the telescopic upside of inner tube week side is spaced apart to be equipped with a plurality of air vents, this air vent with the ventilation gap intercommunication. The air vent of the intermediate layer intercommunication of ventilating of this double tube of engine fuel gas supply system connects and double tube is seted up in flange week side, has reduced the mounted position that this double tube connects, and this double tube connects the double sealing structure that adopts gasket, O type circle, and the leakproofness is good.
Description
Technical field
The utility model relates to the gas supply system field of dual-layer wall peculiar to vessel protection, particularly a kind of Double-layer frame joint of engine gas supply system.
Background technique
The gas supply system pipeline of existing gas engine generally uses mono-layer tube, in order to improve the Security of pipeline, in gas engine peculiar to vessel, bimetallic tube need be used, interior pipe leads to combustion gas, outer tube and ventilation system UNICOM, when interior tracheal rupture or poorly sealed time, gas leakage enters outer tube, and flows to safety zone with ventilation system.
The Double-layer frame joint of existing double-deck fuel gas pipeline adopts bimetallic tube and flange (two O type circle) to be welded to connect, and wherein, flange circumference is laid with multiple vent be communicated with the ventilation interlayer of bimetallic tube.Shortcoming: size is large, and take very large mounting point, caliber is too little inapplicable, and the sealing of bimetallic tube joint is bad.Bimetallic tube and flange welding difficulty (must first weld interior pipe, then weld outer tube), outer tube requires that diameter is larger.
The information being disclosed in this background technique part is only intended to increase the understanding to general background of the present utility model, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Model utility content
The purpose of this utility model is the Double-layer frame joint providing a kind of simple and reasonable engine gas supply system, the good airproof performance of the Double-layer frame joint of this engine gas supply system, and facilitates welding operation.
For achieving the above object, the utility model provides a kind of Double-layer frame joint of engine gas supply system, and the Double-layer frame joint of this engine gas supply system comprises: outer tube; Interior pipe, its epimere is arranged on the inner chamber of described outer tube, forms ventilation interlayer; And flange, it comprises: flanged plate and interior pipe box cylinder, and the central authorities of this flanged plate offer inner perforated tube, and the upper end of inner perforated tube has outer tube welding groove, and the hypomere of described interior pipe inserts this inner perforated tube and forms airspace; Described ventilation interlayer is communicated with this airspace, and the upside of described interior pipe box cylinder week, side was spaced apart is provided with multiple vent, and this vent is communicated with described airspace.
Preferably, in technique scheme, flanged plate is rhombic plate.
Preferably, in technique scheme, the two ends of rhombic plate offered nail respectively.
Preferably, in technique scheme, the downside week side of interior pipe box cylinder offers O type ring recess.
Preferably, in technique scheme, outer tube inserts described outer tube welding groove, and continue after described interior pipe inserts described inner perforated tube to stretch into interior pipe box cylinder, described interior pipe welds from the lower end of flange, and described outer tube welds from the upper end of flange.
Compared with prior art, the utility model has following beneficial effect: the vent that the Double-layer frame joint of this engine gas supply system is communicated with the ventilation interlayer of bimetallic tube is opened in flange week side, decrease the mounting point of this Double-layer frame joint, and this Double-layer frame joint adopts the double sealing structure of pad, O type circle, good airproof performance.In addition, the interior pipe of the Double-layer frame joint of this engine gas supply system is from the welding of flange lower end, and outer tube, from the welding of flange upper end, is all open area, facilitates welding operation.
Accompanying drawing explanation
Fig. 1 is the perspective view of the Double-layer frame joint of engine gas supply system of the present utility model.
Fig. 2 is the sectional structure schematic diagram of the Double-layer frame joint of engine gas supply system of the present utility model.
Fig. 3 is the using state structural representation of the Double-layer frame joint of engine gas supply system of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole specification and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or constituent element, and do not get rid of other element or other constituent element.
As depicted in figs. 1 and 2, concrete structure according to the Double-layer frame joint of the engine gas supply system of the utility model embodiment comprises: outer tube 1, interior pipe 3, and connect the flange 2 of this outer tube 1 and interior pipe 3, wherein, outer tube 1 and interior pipe 3 are formed with ventilation interlayer, and interior pipe 3 welds from the lower end of flange 2, and outer tube 1 welds from the upper end of flange 2, be all open area, facilitate welding operation.All sides of flange 2 offer the vent be communicated with the ventilation interlayer of bimetallic tube, decrease the mounting point of this Double-layer frame joint, and this Double-layer frame joint adopts the double sealing structure of pad, O type circle, good airproof performance.
Specifically, interior pipe 3 is arranged on the inner chamber of outer tube 1, and forms interlayer of ventilating between interior pipe 3 and outer tube 1, and interior pipe leads to combustion gas, when interior tracheal rupture or poorly sealed time, combustion gas can flow ventilation interlayer, and is directed to safety zone with ventilation system.
Flange 2 comprises: rhombic plate and interior pipe box cylinder 8, and wherein, the two ends of this rhombic plate offered nail 4 respectively, connects compress for construction bolt.The central authorities of rhombic plate offer inner perforated tube, and the upper end of inner perforated tube has outer tube welding groove, and when outer tube 1, interior pipe 3 are connected with flange 2, interior pipe 3 inserts inner perforated tube, forms airspace between the outside of interior pipe 3 and inner perforated tube; The ventilation interlayer that outer tube 1 and interior pipe 3 are formed is communicated with the airspace formed between interior pipe 3 and inner perforated tube.The upside week of interior pipe box cylinder, side was spaced apart is provided with multiple vent 5, all sides, downside offer O type ring recess 6, vent 5 is communicated with the airspace formed between interior pipe 3 and inner perforated tube, thus guide ventilation interlayer into ventilation system, when interior tracheal rupture or poorly sealed time, combustion gas can flow ventilation interlayer, then enters ventilation system by vent 5 and be directed to safety zone.
Outer tube 1 inserts outer tube welding groove, continues to stretch into interior pipe box cylinder after interior pipe 3 inserts inner perforated tube, and interior pipe 3 welds from the lower end of flange 2, and outer tube 1 welds from the upper end of flange 2, is all open area, facilitates welding operation.
As shown in Figure 3, during use, this Double-layer frame joint inserts connected element by the interior pipe box cylinder 8 of flange 2, and end face of flange is sealed (flanged surface) by pad 7, prevents ventilating layer air leak.O type circle is set in O type ring recess 6 and carries out radial seal, prevent gas leakage, ensure that combustion gas is only flowed at interior pipe.This Double-layer frame joint adopts the double sealing structure of pad, O type circle, good airproof performance.
To sum up, the vent that the Double-layer frame joint of this engine gas supply system is communicated with the ventilation interlayer of bimetallic tube is opened in flange week side, decrease the mounting point of this Double-layer frame joint, and this Double-layer frame joint adopts the double sealing structure of pad, O type circle, good airproof performance.In addition, the interior pipe of the Double-layer frame joint of this engine gas supply system is from the welding of flange lower end, and outer tube, from the welding of flange upper end, is all open area, facilitates welding operation.
The aforementioned description to concrete exemplary of the present utility model is to illustrate and the object of illustration.These descriptions not want the utility model to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present utility model and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present utility model and various different selection and change.Scope of the present utility model is intended to limited by claims and equivalents thereof.
Claims (5)
1. a Double-layer frame joint for engine gas supply system, is characterized in that, comprising:
Outer tube;
Interior pipe, its epimere is arranged on the inner chamber of described outer tube, forms ventilation interlayer; And
Flange, it comprises: flanged plate and interior pipe box cylinder, and the central authorities of this flanged plate offer inner perforated tube, and the upper end of inner perforated tube has outer tube welding groove, and the hypomere of described interior pipe inserts this inner perforated tube and forms airspace; Described ventilation interlayer is communicated with this airspace, and the upside of described interior pipe box cylinder week, side was spaced apart is provided with multiple vent, and this vent is communicated with described airspace.
2. the Double-layer frame joint of engine gas supply system according to claim 1, is characterized in that, described flanged plate is rhombic plate.
3. the Double-layer frame joint of engine gas supply system according to claim 2, is characterized in that, the two ends of described rhombic plate offered nail respectively.
4. the Double-layer frame joint of engine gas supply system according to claim 1, is characterized in that, the downside week side of described interior pipe box cylinder offers O type ring recess.
5. the Double-layer frame joint of engine gas supply system according to claim 1, it is characterized in that, described outer tube inserts described outer tube welding groove, continue after described interior pipe inserts described inner perforated tube to stretch into interior pipe box cylinder, described interior pipe welds from the lower end of flange, and described outer tube welds from the upper end of flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520497878.0U CN204738889U (en) | 2015-07-10 | 2015-07-10 | Double tube of engine fuel gas supply system connects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520497878.0U CN204738889U (en) | 2015-07-10 | 2015-07-10 | Double tube of engine fuel gas supply system connects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204738889U true CN204738889U (en) | 2015-11-04 |
Family
ID=54420629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520497878.0U Withdrawn - After Issue CN204738889U (en) | 2015-07-10 | 2015-07-10 | Double tube of engine fuel gas supply system connects |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204738889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989558A (en) * | 2015-07-10 | 2015-10-21 | 广西玉柴机器股份有限公司 | Double-layer pipe joint for engine gas supply system |
-
2015
- 2015-07-10 CN CN201520497878.0U patent/CN204738889U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989558A (en) * | 2015-07-10 | 2015-10-21 | 广西玉柴机器股份有限公司 | Double-layer pipe joint for engine gas supply system |
| CN104989558B (en) * | 2015-07-10 | 2019-03-15 | 广西玉柴机器股份有限公司 | The Double-layer frame joint of engine gas feed system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151104 Effective date of abandoning: 20190315 |