CN206753773U - The gas handling system of LNG natural gas engines - Google Patents
The gas handling system of LNG natural gas engines Download PDFInfo
- Publication number
- CN206753773U CN206753773U CN201720633741.2U CN201720633741U CN206753773U CN 206753773 U CN206753773 U CN 206753773U CN 201720633741 U CN201720633741 U CN 201720633741U CN 206753773 U CN206753773 U CN 206753773U
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- air
- gas
- lng
- rail
- natural gas
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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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- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The utility model discloses a kind of gas handling system of LNG natural gas engines, including air supply subsystem, LNG natural gases supply subsystem and blender, air supply subsystem includes air cleaner, exhaust-driven turbo-charger exhaust-gas turbo charger, charge air cooler and the electronic throttle being sequentially connected, and electronic throttle is used for controlling the quantity delivered of the air after cooling down；LNG natural gases supply subsystem includes LNG gas cylinders, vaporizer, voltage-stablizer, surge tank, low pressure cleaner, low-pressure fuel stop valve and the automatically controlled gas rail assembly being sequentially connected, liquified natural gas is accurately controlled after overflash, voltage stabilizing, buffering and filtering into automatically controlled gas rail assembly, blender is used for supplying inlet manifold after mixing the air for flowing through electronic throttle and the natural gas for flowing out automatically controlled gas rail assembly, and the inlet valve of inlet manifold and cylinder is connected.The gas handling system can realize, the control of safety accurate to natural gas and air, meet the air inlet requirement of LNG natural gas engines.
Description
Technical field
Gas engine field is the utility model is related to, more particularly to a kind of gas handling system of LNG natural gas engines.
Background technology
At present, when the form of compressed natural gas and liquefied natural gas is applied on the engine, have and Structure of Internal-Combustion Engine is changed
Dynamic small, working index changes the advantage such as little, has become a kind of important alternative fuel and has been obtained extensively in field of internal combustion engine
Using.Gas engine is special exploitation to meet the spark-ignition engine of gas fuel combustion.Its operation principle and gasoline engine
It is similar, but have certain difference.The main distinction is fuel difference, has larger difference in terms of result in fuel feed system
Not.
The information for being disclosed in the background section is merely intended to increase the understanding to general background of the present utility model, and
It is not construed as recognizing or implies that the information structure has been existing well known to persons skilled in the art in any form
Technology.
Utility model content
The purpose of this utility model is to provide a kind of gas handling system of LNG natural gas engines, can accurately, safety
The air inflow of natural gas and air is controlled, meets the air inlet requirement of LNG natural gas engines.
To achieve the above object, the utility model provides a kind of gas handling system of LNG natural gas engines, including：It is empty
Gas supply subsystem, the air supply subsystem include be sequentially connected air cleaner, exhaust-driven turbo-charger exhaust-gas turbo charger, charge air cooler and
Electronic throttle, air cleaner are used for providing the air of cleaning, and exhaust-driven turbo-charger exhaust-gas turbo charger is used for by air cleaner
Clean air is pressurizeed, and charge air cooler is used for cooling down the clean air after pressurization, and electronic throttle is used for controlling cooling
The quantity delivered of air afterwards；LNG natural gases supply subsystem, its LNG gas cylinder for including being sequentially connected, vaporizer, voltage-stablizer, delay
Tank, low pressure cleaner, low-pressure fuel stop valve and automatically controlled gas rail assembly are rushed, automatically controlled gas rail assembly includes the air inlet being set up in parallel
Rail and outlet rail, are provided with nozzle corresponding with cylinder number between air inlet rail and outlet rail, one end of air inlet rail with it is low
Pressurized fuel stop valve connects, and automatically controlled gas rail assembly sprays into the amount of natural gas of outlet rail by Jet control；And blender, it is used
Inlet manifold is supplied after the natural gas of the air for flowing through electronic throttle and outflow outlet rail is mixed, inlet manifold is with starting
The inlet valve of machine cylinder is connected.
Compared with prior art, the utility model has the advantages that：By setting air to supply subsystem, LNG
Natural gas supplies subsystem and blender, air supply subsystem and LNG natural gases supply subsystem independent control, Ke Yijing
Really, the air inflow of safe control natural gas and air, meets the air inlet requirement of LNG natural gas engines.
Brief description of the drawings
Fig. 1 is the principle schematic according to the gas handling system of LNG natural gas engines of the present utility model.
Embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail, it is to be understood that this practicality
New protection domain is not limited by embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " comprising " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other members
Part or other parts.
As shown in figure 1, according to a kind of gas handling system of LNG natural gas engines of the utility model embodiment,
Including air supply subsystem, LNG natural gases supply subsystem and blender 30, wherein air supply subsystem include according to
Air cleaner 101, exhaust-driven turbo-charger exhaust-gas turbo charger 102, charge air cooler 103 and the electronic throttle 104 of secondary connection, air cleaner
101 are used for providing the air of cleaning, and exhaust-driven turbo-charger exhaust-gas turbo charger 102 is used for being carried out by the clean air of air cleaner 101
Pressurization, charge air cooler 103 are used for cooling down the clean air after pressurization, and electronic throttle 104 is used for controlling the sky after cooling
The quantity delivered of gas.It is LNG gas cylinders 201 that LNG natural gases supply subsystem includes being sequentially connected, vaporizer 202, voltage-stablizer 203, slow
Tank 207, low pressure cleaner 204, low-pressure fuel stop valve 205 and automatically controlled gas rail assembly 206, wherein LNG gas cylinders 201 is rushed to be used for
Storing liquid natural gas, liquified natural gas enter low pressure cleaner 204, low pressure cleaner 204 after overflash, voltage stabilizing and buffering
For filter liquid state natural gas, mixed machine oil, low-pressure fuel stop valve 205 connect with low pressure cleaner 204 in compression process
Connect, low-pressure fuel stop valve 205 is used for switching on or off the natural gas supply of low pressure line in time, and automatically controlled gas rail assembly 206 wraps
The air inlet rail and outlet rail being set up in parallel are included, nozzle corresponding with cylinder number is provided between air inlet rail and outlet rail,
One end of air inlet rail is connected with low-pressure fuel stop valve, and automatically controlled gas rail assembly 206 sprays into the natural of outlet rail by Jet control
Tolerance.In addition, the natural gas for the air and outflow outlet rail that blender 30 is used for that electronic throttle 104 will be flowed through supplies after mixing
Inlet manifold, inlet manifold and the inlet valve of cylinder 40 are connected.
In such scheme, liquified natural gas comes out from LNG gas cylinders 201, is vaporized by vaporizer, and liquefied natural gas is vaporizing
During due to volumetric expansion, it is necessary to absorb substantial amounts of heat, to prevent carburettor icing, engine coolant need to be drawn out to
Vaporizer heats to combustion gas.Natural gas after vaporization enters automatically controlled gas rail assembly 206 through low-pressure fuel stop valve 205,
The effect of automatically controlled gas rail assembly 206 is that natural gas quantity delivered is accurately controlled according to engine operation condition.Natural gas exists with air
It is sufficiently mixed in blender 30, into engine cylinder, is burnt through spark ignitor, the time of ignition of spark plug is by ECU
Control.In addition, in this programme, the oxygen concentration of the tail gas after the burning of lambda sensor immediately monitoring can be set, calculate air-fuel ratio,
ECU corrects natural gas quantity delivered in time according to the feedback signal of lambda sensor.
To sum up, the gas handling system of the LNG natural gas engines of the present embodiment, by set air supply subsystem, LNG days
Right gas supply subsystem and blender 30, air supply subsystem and LNG natural gases supply subsystem independent control, Ke Yijing
Really, the air inflow of safe control natural gas and air, meets the air inlet requirement of LNG natural gas engines.
The foregoing description to specific illustrative embodiment of the present utility model is to illustrate and the purpose of illustration.These
Description is not wishing to for the utility model to be defined to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can carry out
It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explain certain principles of the present utility model
And its practical application, so that those skilled in the art can realize and utilize a variety of examples of the present utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shape
Formula is limited.
Claims (1)
- A kind of 1. gas handling system of LNG natural gas engines, it is characterised in that including：Air supply subsystem, the air supply subsystem include be sequentially connected air cleaner, exhaust-driven turbo-charger exhaust-gas turbo charger, in Cooler and electronic throttle, the air cleaner are used for providing the air of cleaning, and the exhaust-driven turbo-charger exhaust-gas turbo charger is used for warp The clean air for crossing the air cleaner is pressurizeed, and the charge air cooler is used for cooling down the clean air after pressurization, The electronic throttle is used for controlling the quantity delivered of the air after cooling down；LNG natural gases supply subsystem, its LNG gas cylinders for including being sequentially connected, vaporizer, voltage-stablizer, surge tank, low pressure filtering Device, low-pressure fuel stop valve and automatically controlled gas rail assembly, the automatically controlled gas rail assembly include the air inlet rail and outlet being set up in parallel Rail, nozzle corresponding with cylinder number, one end of the air inlet rail are provided between the air inlet rail and the outlet rail It is connected with the low-pressure fuel stop valve, the automatically controlled gas rail assembly sprays into the natural of the outlet rail by the Jet control Tolerance；AndBlender, it is used for supplying after mixing the air for flowing through the electronic throttle and the natural gas for flowing out the outlet rail The inlet valve of inlet manifold, the inlet manifold and cylinder is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720633741.2U CN206753773U (en) | 2017-06-02 | 2017-06-02 | The gas handling system of LNG natural gas engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720633741.2U CN206753773U (en) | 2017-06-02 | 2017-06-02 | The gas handling system of LNG natural gas engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206753773U true CN206753773U (en) | 2017-12-15 |
Family
ID=60620678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720633741.2U Active CN206753773U (en) | 2017-06-02 | 2017-06-02 | The gas handling system of LNG natural gas engines |
Country Status (1)
| Country | Link |
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| CN (1) | CN206753773U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026448A (en) * | 2018-10-09 | 2018-12-18 | 广西玉柴机器股份有限公司 | gas mixing system |
-
2017
- 2017-06-02 CN CN201720633741.2U patent/CN206753773U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026448A (en) * | 2018-10-09 | 2018-12-18 | 广西玉柴机器股份有限公司 | gas mixing system |
| CN109026448B (en) * | 2018-10-09 | 2019-11-12 | 广西玉柴机器股份有限公司 | Gas mixing system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230118 Address after: No.88 Tianqiao West Road, Yulin City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi Yuchai Ship Electric Power Co.,Ltd. Address before: 537005 No. 88 flyover West Road, the Guangxi Zhuang Autonomous Region, Yulin Patentee before: Guangxi Yuchai Machinery Co.,Ltd. |