CN104989558B - The Double-layer frame joint of engine gas feed system - Google Patents

The Double-layer frame joint of engine gas feed system Download PDF

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Publication number
CN104989558B
CN104989558B CN201510405065.9A CN201510405065A CN104989558B CN 104989558 B CN104989558 B CN 104989558B CN 201510405065 A CN201510405065 A CN 201510405065A CN 104989558 B CN104989558 B CN 104989558B
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China
Prior art keywords
tube
double
layer frame
frame joint
gas feed
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CN201510405065.9A
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CN104989558A (en
Inventor
邓亚鹏
曾志龙
金伟
蔡晓霞
李佑长
覃明智
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Guangxi Yuchai Machinery Co Ltd
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Guangxi Yuchai Machinery Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/30Use of alternative fuels, e.g. biofuels

Abstract

The invention discloses a kind of Double-layer frame joints of engine gas feed system.The Double-layer frame joint of the engine gas feed system includes: outer tube;The inner cavity of the outer tube is arranged in inner tube, upper section, forms ventilation interlayer;And flange comprising: flanged plate and inner tube sleeve, the center of the flanged plate offer inner perforated tube, and the upper end of inner perforated tube has outer tube welding groove, and the lower section of said inner tube is inserted into the inner perforated tube and forms airspace;The ventilation interlayer is connected to the airspace, and the upside side of said inner tube sleeve, which is spaced apart, is equipped with multiple ventholes, which is connected to the airspace.The venthole that the Double-layer frame joint of the engine gas feed system is connected to the ventilation interlayer of bimetallic tube is provided with flange side, reduces the installation site of the Double-layer frame joint, and the Double-layer frame joint is using gasket, the double sealing structure of O-ring, good airproof performance.

Description

The Double-layer frame joint of engine gas feed system
Technical field
The present invention relates to the gas supply system field of double wall peculiar to vessel protection, in particular to a kind of engine gas supply The Double-layer frame joint of system.
Background technique
The gas supply system pipeline of existing gas engine generally uses mono-layer tube, in order to improve the safety of pipeline, In gas engine peculiar to vessel, bimetallic tube need to be used, inner tube lead to combustion gas, outer tube and ventilating system connection, when interior tracheal rupture or close When Feng Buyan, gas leakage flows to safety zone into outer tube, and with ventilating system.
The Double-layer frame joint of existing bilayer fuel gas pipeline is welded to connect using bimetallic tube and flange (double O-rings), wherein method It is blue to be circumferentially laid with multiple ventholes being connected to the ventilation interlayer of bimetallic tube.Disadvantage: size is big, occupies very big installation position It sets, caliber is too small not applicable, and the sealing of bimetallic tube junction is bad.Bimetallic tube and flange welding it is difficult (must first weld inner tube, then Weld outer tube), outer tube requires to be relatively large in diameter.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of Double-layer frame joint of simple and reasonable engine gas feed system, The good airproof performance of the Double-layer frame joint of the engine gas feed system, and welding is facilitated to operate.
To achieve the above object, the present invention provides a kind of Double-layer frame joint of engine gas feed system, this starts The Double-layer frame joint of machine gas supply system includes: outer tube;The inner cavity of the outer tube is arranged in inner tube, upper section, forms ventilation Interlayer;And flange comprising: flanged plate and inner tube sleeve, the center of the flanged plate offer inner perforated tube, inner perforated tube Upper end has outer tube welding groove, and the lower section of said inner tube is inserted into the inner perforated tube and forms airspace;The ventilation interlayer with should Airspace connection, the upside side of said inner tube sleeve, which is spaced apart, is equipped with multiple ventholes, between the venthole and the ventilation Gap connection.
Preferably, in above-mentioned technical proposal, flanged plate is rhombic plate.
Preferably, in above-mentioned technical proposal, the both ends of rhombic plate offered nail hole respectively.
Preferably, in above-mentioned technical proposal, the downside side of inner tube sleeve offers O-ring slot.
Preferably, in above-mentioned technical proposal, outer tube is inserted into the outer tube welding groove, and said inner tube is inserted into said inner tube perforation After continue to protrude into inner tube sleeve, said inner tube is welded from the lower end of flange, and the outer tube is welded from the upper end of flange.
Compared with prior art, the invention has the following beneficial effects: the bimetallic tubes of the engine gas feed system to connect The venthole that head is connected to the ventilation interlayer of bimetallic tube is provided with flange side, reduces the installation site of the Double-layer frame joint, And the Double-layer frame joint is using gasket, the double sealing structure of O-ring, good airproof performance.In addition, the engine gas feed system Double-layer frame joint inner tube from flange lower end weld, outer tube from flange upper end weld, be all open area, facilitate welding grasp Make.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the Double-layer frame joint of engine gas feed system of the invention.
Fig. 2 is the schematic cross-sectional view of the Double-layer frame joint of engine gas feed system of the invention.
Fig. 3 is the using state structure diagram of the Double-layer frame joint of engine gas feed system of the invention.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention Shield range is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members Part or other component parts.
As depicted in figs. 1 and 2, the Double-layer frame joint of the engine gas feed system of specific embodiment according to the present invention Specific structure include: outer tube 1, inner tube 3, and connect the flange 2 of the outer tube 1 and inner tube 3, wherein 3 shape of outer tube 1 and inner tube At there is a ventilation interlayer, and inner tube 3 is welded from the lower end of flange 2, and it is all open area that outer tube 1 is welded from the upper end of flange 2, side Just welding operation.The side of flange 2 offers the venthole being connected to the ventilation interlayer of bimetallic tube, reduces the Double-layer frame joint Installation site, and the Double-layer frame joint using gasket, O-ring double sealing structure, good airproof performance.
Specifically, the inner cavity of outer tube 1 is arranged in inner tube 3, and ventilation interlayer, inner tube are formed between inner tube 3 and outer tube 1 Logical combustion gas, when interior tracheal rupture or it is poorly sealed when, combustion gas can flow ventilation interlayer, and be directed to safety zone with ventilating system.
Flange 2 includes: rhombic plate and inner tube sleeve 8, wherein the both ends of the rhombic plate offered nail hole 4 respectively, were used for Installation is bolted compression.The center of rhombic plate offers inner perforated tube, and the upper end of inner perforated tube has outer tube welding groove, outer tube 1, when inner tube 3 is connect with flange 2, inner tube 3 is inserted into inner perforated tube, forms airspace between the outside and inner perforated tube of inner tube 3; The airspace formed between ventilation interlayer and inner tube 3 and the inner perforated tube that outer tube 1 and inner tube 3 are formed is connected to.Inner tube sleeve Upside side, which is spaced apart, is equipped with multiple ventholes 5, and downside side offers O-ring slot 6, venthole 5 and inner tube 3 and inner perforated tube Between formed airspace connection, thus will ventilation interlayer guide ventilating system into, when interior tracheal rupture or it is poorly sealed when, combustion gas Meeting flow ventilation interlayer, then safety zone is directed into ventilating system by venthole 5.
Outer tube 1 is inserted into outer tube welding groove, and inner tube 3, which is inserted into after inner perforated tube, continues to protrude into inner tube sleeve, and inner tube 3 is from flange 2 Lower end welding, outer tube 1 from the upper end of flange 2 weld, be all open area, facilitate welding operate.
As shown in figure 3, in use, the Double-layer frame joint is inserted into connecting component, end face of flange by the inner tube sleeve of flange 2 (flange face) is sealed by gasket 7, prevents ventilating layer air from revealing.Setting O-ring carries out radial seal in O-ring slot 6, prevents Gas leakage guarantees that combustion gas is only flowed in inner tube.The Double-layer frame joint is using gasket, the double sealing structure of O-ring, leakproofness It is good.
To sum up, the venthole that the Double-layer frame joint of the engine gas feed system is connected to the ventilation interlayer of bimetallic tube is opened Be located at flange side, reduce the installation site of the Double-layer frame joint, and the Double-layer frame joint using gasket, O-ring it is dual Sealing structure, good airproof performance.In addition, the inner tube of the Double-layer frame joint of the engine gas feed system is welded from flange lower end, Outer tube is welded from flange upper end, is all open area, and welding is facilitated to operate.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.

Claims (5)

1. a kind of Double-layer frame joint of engine gas feed system characterized by comprising
Outer tube;
The inner cavity of the outer tube is arranged in inner tube, upper section, forms ventilation interlayer;And
Flange comprising: flanged plate and inner tube sleeve, the center of the flanged plate offer inner perforated tube, the upper end of inner perforated tube With outer tube welding groove, the lower section of said inner tube is inserted into the inner perforated tube and forms airspace;The ventilation interlayer and the ventilation Gap connection, the upside side of said inner tube sleeve, which is spaced apart, is equipped with multiple ventholes, and the venthole and the airspace connect It is logical.
2. the Double-layer frame joint of engine gas feed system according to claim 1, which is characterized in that the flanged plate For rhombic plate.
3. the Double-layer frame joint of engine gas feed system according to claim 2, which is characterized in that the rhombic plate Both ends offered nail hole respectively.
4. the Double-layer frame joint of engine gas feed system according to claim 1, which is characterized in that said inner tube set The downside side of cylinder offers O-ring slot.
5. the Double-layer frame joint of engine gas feed system according to claim 1, which is characterized in that the outer tube is inserted Enter the outer tube welding groove, continues to protrude into inner tube sleeve after said inner tube insertion said inner tube perforation, said inner tube is from flange Lower end welding, the outer tube are welded from the upper end of flange.
CN201510405065.9A 2015-07-10 2015-07-10 The Double-layer frame joint of engine gas feed system Active CN104989558B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510405065.9A CN104989558B (en) 2015-07-10 2015-07-10 The Double-layer frame joint of engine gas feed system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510405065.9A CN104989558B (en) 2015-07-10 2015-07-10 The Double-layer frame joint of engine gas feed system

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CN104989558A CN104989558A (en) 2015-10-21
CN104989558B true CN104989558B (en) 2019-03-15

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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108474323B (en) * 2016-01-12 2020-08-21 瓦锡兰芬兰有限公司 Fuel gas manifold assembly, method of manufacturing the same, and internal combustion piston engine
CN105781800A (en) * 2016-03-29 2016-07-20 成都科力夫科技有限公司 Gas injection system of dual-fuel locomotive engine
CN105804891A (en) * 2016-03-29 2016-07-27 成都科力夫科技有限公司 Fuel gas jetting control method of double-fuel locomotive
CN105781802A (en) * 2016-03-29 2016-07-20 成都科力夫科技有限公司 Air jet adjusting and control method of double-fuel engine
CN105822461A (en) * 2016-03-29 2016-08-03 成都科力夫科技有限公司 Fuel gas injection method for dual-fuel vehicle
CN105840345A (en) * 2016-03-29 2016-08-10 成都科力夫科技有限公司 Fuel gas supply method of double-fuel locomotive
CN105673261A (en) * 2016-03-29 2016-06-15 成都科力夫科技有限公司 Fuel gas supply heating method for dual-fuel automobiles
CN105649821A (en) * 2016-03-29 2016-06-08 成都科力夫科技有限公司 Jet auxiliary control system of dual-fuel automobile
CN105604742A (en) * 2016-03-29 2016-05-25 成都科力夫科技有限公司 Combustible gas injection system for dual-fuel locomotive
CN105673262A (en) * 2016-03-29 2016-06-15 成都科力夫科技有限公司 Supply gas pre-heating method for dual-fuel automobiles
CN107131079A (en) * 2017-07-05 2017-09-05 广西玉柴机器股份有限公司 A kind of gas engine supply bimetallic tube

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203783759U (en) * 2014-03-21 2014-08-20 富地红华动力(武汉)有限责任公司 Gas circuit device for dual-fuel engine of ship
CN104533665A (en) * 2014-12-19 2015-04-22 重庆普什机械有限责任公司 Fuel gas inlet branch pipe sealing structure for double-fuel engine
CN204738889U (en) * 2015-07-10 2015-11-04 广西玉柴机器股份有限公司 Double tube of engine fuel gas supply system connects

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203783759U (en) * 2014-03-21 2014-08-20 富地红华动力(武汉)有限责任公司 Gas circuit device for dual-fuel engine of ship
CN104533665A (en) * 2014-12-19 2015-04-22 重庆普什机械有限责任公司 Fuel gas inlet branch pipe sealing structure for double-fuel engine
CN204738889U (en) * 2015-07-10 2015-11-04 广西玉柴机器股份有限公司 Double tube of engine fuel gas supply system connects

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