CN204163899U - A kind of pre-mixing type gas machine air inlet pipeline - Google Patents
A kind of pre-mixing type gas machine air inlet pipeline Download PDFInfo
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- CN204163899U CN204163899U CN201420488859.7U CN201420488859U CN204163899U CN 204163899 U CN204163899 U CN 204163899U CN 201420488859 U CN201420488859 U CN 201420488859U CN 204163899 U CN204163899 U CN 204163899U
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- air inlet
- machine
- inlet pipeline
- pressurized machine
- intake manifold
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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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Abstract
The utility model belongs to spark ignition gas fuel engine technical field, a kind of pre-mixing type gas machine air inlet pipeline is proposed, make the gas machine of biserial cylinder arrangement structure have shared mixer (3), pressurized machine (6) and closure (11), make the gas machine of biserial cylinder arrangement share before pressurized machine intake manifold after air inlet pipeline and pressurized machine; After pressurized machine, intake manifold arranges to being arranged in parallel into up-down structure with engine shaft with air inlet pipeline before pressurized machine, above the angle that before supercharging, air inlet pipeline and engine shaft are formed to paralleling to the layout and installation at biserial cylinder, after supercharging intake manifold after bend pipe break-in with engine shaft to paralleling to the layout and installation in the angle that biserial cylinder is formed.The utility model can ensure that the gas machine two row cylinder air fuel ratio of biserial cylinder arrangement structure is identical, acting evenly, rotating speed and power swing little, make the gas machine structure of biserial cylinder arrangement structure simple, height reduction, weight reduces, and cost reduces.
Description
technology neck city
The utility model belongs to spark ignition gas fuel engine (hereinafter referred to as gas machine) technical field, relate to a kind of pre-mixing type gas machine air inlet pipeline, in particular to the single pressurizator gas machine air inlet pipeline of gaseous fuel biserial cylinder arrangement structure of premixing before pressurized machine, the gas machine of non pressurized pre-mixing type biserial cylinder arrangement or single-row cylinder arrangement layout also can be applied to.
Background technique
Along with the clean energy resource such as rock gas, coal-seam gas obtains the accreditation in combustion engine powered field, gas machine is rapidly developed with environmental protection, energy-conservation advantage.In existing gas machine application, the gas machine of biserial cylinder arrangement structure is most widely used, generally adopts combustion gas and air pre-mixed technology before pressurized machine, by throttle control air inflow; Current gas machine air inlet pipeline mainly contains two kinds of forms: one is, each installation pressurized machine before two row cylinder intake pipes, pressurized machine is arranged on the same side of biserial cylinder, combustion gas is mixed into gaseous fuel with air before each pressurized machine, and gaseous fuel enters cylinder by throttle control after flowing through pressurized machine; Another kind is, each installation pressurized machine before the suction tude of two row cylinders, and pressurized machine is arranged on the difference end of biserial cylinder, and combustion gas is mixed into gaseous fuel with air before each pressurized machine, and gaseous fuel enters cylinder by throttle control after flowing through pressurized machine; The pre-mixed gas machine of these two kinds of biserial cylinder arrangement structures all uses two mixers, two pressurized machines, two closures, enter the gaseous fuel of biserial cylinder respectively by mixer, pressurized machine, the throttle control of each row, two row air inlet pipelines are relatively independent; As those skilled in the known, there is the defect of several respects in this air inlet pipeline: 1, two row air inlet pipelines are relatively independent, after motor runs a period of time, by the impact of mixer, pressurized machine, the change of closure performance characteristic on respective pipeline, the gaseous fuel entering two row cylinders is inconsistent, affect two row cylinder acting conformity, cause the problems such as the gas machine fluctuation of speed of biserial cylinder arrangement is large, power swing is large; 2, on air inlet pipeline, amount of parts is many, causes that engine structure is complicated, manufacture cost is high, take up room the problem such as large.。
Model utility content
In order to solve the problems of the technologies described above, the utility model proposes a kind of pre-mixing type gas machine air inlet pipeline, ensure that the gas machine two row cylinder air fuel ratio of biserial cylinder arrangement structure is identical, acting evenly, rotating speed and power swing little.
The utility model adopts following technical proposals to complete its invention task:
A kind of pre-mixing type gas machine air inlet pipeline, the gas machine biserial cylinder of biserial cylinder arrangement structure shares the air inlet pipeline of a fuel mixer, separate unit pressurized machine and a closure, described pre-mixing type gas machine air inlet pipeline to be divided into before supercharging intake manifold after admission line and supercharging before and after pressurized machine, and the gas machine biserial cylinder of biserial cylinder arrangement to share before pressurized machine intake manifold after air inlet pipeline and pressurized machine; Before described supercharging, air inlet pipeline includes: air-strainer, Y shape suction tude, fuel mixer, air inlet straight tube and bellows I, be combined into one be arranged on pressurized machine before pressurized machine before air inlet pipeline, above the angle formed to paralleling to the layout and installation at biserial cylinder with engine shaft; After described supercharging, intake manifold includes bellows II, bend pipe, bellows III, straight tube, closure and T tube, be combined into one be arranged on pressurized machine after single intake manifold, after supercharging intake manifold after bend pipe break-in with engine shaft to paralleling to the layout and installation in the angle that biserial cylinder is formed; Before described pressurized machine, after air inlet pipeline and supercharging, intake manifold is the structure that is arranged in parallel up and down.
The gas machine structure of current biserial cylinder arrangement makes biserial cylinder form a v-angle on the engine, in this case, by the restriction in space in v-angle, a distinguishing feature compared by the utility model and use two pressurized machines with the gas machine of two air inlet pipelines be exactly the space that the utility model can utilize v-angle, after making supercharging, intake manifold is arranged in v-angle, improve motor utilization ratio spatially, reduce the height of gas machine.
The gaseous fuel that described single fuel mixer can provide proportions of ingredients identical for biserial cylinder.As those skilled in the known, the gas machine of current biserial cylinder arrangement is widely used is two fuel mixers, often row cylinder has installed a fuel mixer respectively, but this feature request enters the air inlet amount of fuel mixer and gas quantity should keep completely the same, after gas machine work a period of time, the air-strainer stopping state installed before each fuel mixer is inconsistent, making gas machine biserial cylinder intake air quantity one arrange many another, to arrange few phenomenon commonplace, cause the high row combustion temperature of the combustion temperature of biserial cylinder low, single-row cylinder combustion temperature is crossed high energy and is caused gas machine piston thawing phenomenon in this case., there are not two row cylinder intake air quantity inconsistence problems in the gaseous fuel that the utility model adopts single fuel mixer to provide proportions of ingredients identical for biserial cylinder.
The gaseous fuel that described separate unit pressurized machine can provide pressure identical for biserial cylinder.As those skilled in the known, current supercharging technology application is comparatively wide, and the gas machine of biserial cylinder arrangement is widely used is two pressurized machines, and often row cylinder has installed a pressurized machine respectively.But the service behaviour of this feature request two pressurized machines should keep completely the same, and the rotating speed of pressurized machine is high, reach as high as 65000 turns (as ABB pressurized machines), operating temperature 600-750 degree operating conditions is very severe, after pressurized machine work a period of time, the phenomenons such as the difference of two supercharger speed existence are commonplace, cause the suction pressure of gas machine biserial cylinder inconsistent, two row cylinders one are made to arrange the high row acting of acting low, gas machine is easy to produce power swing under these conditions, the phenomenons such as the fluctuation of speed, the do work phenomenon of detonation of too high generation of single-row cylinder can cause gas machine piston fracture phenomena, , there are not two row cylinder intake pressure inconsistence problems in the gaseous fuel that the utility model adopts separate unit pressurized machine to provide pressure identical for biserial cylinder.
Described single closure synchronously can provide gaseous fuel for biserial cylinder.As those skilled in the known, the gas machine of biserial cylinder arrangement must use two closures because having widely used the air inlet pipeline of two pressurized machines, but the dynamic response of this feature request two closures should keep completely the same.After the phenomenons such as supercharger speed difference and air-strainer blocking occur, suction pressure and the air inflow of gas machine biserial cylinder change, make two closures be easy to produce the phenomenons such as dynamic response can not be consistent, gas machine is easy to aggravate power swing by closure affects under these conditions, combustion temperature crosses high phenomenon; The utility model adopts single closure synchronously to provide gaseous fuel for biserial cylinder, there is not the asynchronous problem of two row cylinder intakes.
The pre-mixing type gas machine air inlet pipeline that the utility model provides, adopts the gas machine biserial cylinder of biserial cylinder arrangement structure to share the air inlet pipeline of a fuel mixer, separate unit pressurized machine and a closure.Ensure that two row cylinder air fuel ratios of biserial cylinder arrangement structure are identical, acting evenly, rotating speed and power swing little; Decrease air inlet pipeline amount of parts simultaneously, save the space taken, reduce manufacture cost and complete machine weight.
Accompanying drawing explanation
Fig. 1 is tube structure schematic diagram of the present utility model.
In figure: 1, air-strainer, 2, Y type suction tude, 3, fuel mixer, 4, air inlet straight tube, 5, bellows I, 6, pressurized machine, 7, bellows II, 8, bend pipe, 9, bellows III, 10, straight tube, 11, closure, 12, T tube.
Embodiment
With specific embodiment, the utility model is illustrated by reference to the accompanying drawings:
As shown in Figure 1, a kind of pre-mixing type gas machine air inlet pipeline, before pressurized machine, air inlet pipeline has air-strainer 1, Y shape suction tude 2, mixer 3, air inlet straight tube 4 and bellows I 5, is combined into air inlet pipeline before a pressurized machine, with engine shaft to becoming to be arranged in parallel; Described Y shape suction tude 2 is for the connection of air-strainer and fuel mixer, and described air-strainer can select one or two according to air inlet amount, and this embodiment further illustrates to use two air-strainer; Two described air-strainer 1 are connected respectively to two suction ports of Y shape suction tude 2, and the air outlet of Y shape suction tude 2 connects fuel mixer 3 suction port; Described fuel mixer 3 air outlet is connected pressurized machine 6 by an air inlet straight tube 4 with bellows I 5; Described bellows I 5 expanding with heat and contract with cold for air inlet pipeline before compensate pressure booster; Air like this after air-strainer 1 enters fuel mixer 3 air intlet, in fuel mixer 3, become gaseous fuel with the combustion gas entering fuel mixer 3 fuel gas inlet, the air inlet straight tube 4 installed after then flowing through fuel mixer 3 enters pressurized machine 6 with the bellows I5 being connected pressurized machine 6 suction port; After pressurized machine, intake manifold has bellows II 7, bend pipe 8, bellows III 9, straight tube 10, closure 11 and T tube 12, be combined into one be arranged on pressurized machine after single intake manifold, with engine shaft to becoming to be arranged in parallel; Described bend pipe 8 suction port one end is connected with pressurized machine 6 air outlet by bellows II 7, and air outlet connects the suction port of straight tube 10 by bellows III 9; Described closure 11 one end connects straight tube 10 air outlet, and the other end connects T tube 12 suction port; Described T tube 12 has a suction port and two air outlets, two air outlet axis coaxles, are arranged vertically on a horizontal plane with suction port axis, and the suction port of T tube 12 is connected with closure 11, air outlet is connected to each row of biserial cylinder; Described pressurized machine 6 suction port axis is that substantially horizontal is arranged, pressurized machine 6 air outlet axis is that Vertical direction is arranged, after such gaseous fuel flows through pressurized machine 6, to enter intake manifold after pressurized machine after axis is bend pipe 8 break-in of arranging of 90 ° of directions again through importing and exporting, before making pressurized machine 6 like this, after air inlet pipeline and supercharging, intake manifold becomes upper and lower layout.The gas machine structure of current biserial cylinder arrangement makes biserial cylinder form a v-angle on the engine, in this case, by the restriction in space in v-angle, a distinguishing feature compared by the utility model and use two pressurized machines with the gas machine of two air inlet pipelines be exactly the space that the utility model can utilize v-angle, after making supercharging, intake manifold is arranged in v-angle, improve motor utilization ratio spatially, reduce the height of gas machine.
As shown in Figure 1, enter fuel mixer 3 air intlet after the air of air-strainer 1 flows through Y shape suction tude 2, combustion gas sucks from fuel mixer 3 fuel air mouth and be mixed into gaseous fuel with air fuel mixer 3; Gaseous fuel flows through air inlet straight tube 4 and enters pressurized machine 6 with the bellows I5 being connected pressurized machine 6 suction port, and the gaseous fuel flowing through pressurized machine 6 enters intake manifold after supercharging after bend pipe 8; Thereafter the aperture by adjusting closure 11 realizes the control of gaseous fuel being entered to machine amount, thus controls the change of power and rotating speed.T tube 12 is three-way pipes, there are a suction port and two air outlets, two air outlet axis coaxles, be arranged vertically on a horizontal plane with suction port axis, the suction port of T tube 12 is connected with closure 11, air outlet is connected to each row of biserial cylinder, for the gaseous fuel equivalent after closure 11 being divided equally, to biserial cylinder air feed.Like this by the break-in effect of bend pipe 8, intake manifold after air inlet pipeline before pressurized machine 6 and pressurized machine 6 is arranged to up-down structure, and intake manifold after pressurized machine 6 being arranged in v-angle that biserial cylinder formed, the space on Appropriate application motor, reduces the height of gas machine.
Claims (1)
1. a pre-mixing type gas machine air inlet pipeline, it is characterized in that: the gas machine biserial cylinder of biserial cylinder arrangement structure shares the air inlet pipeline of a fuel mixer (3), separate unit pressurized machine (6) and a closure (11), intake manifold after admission line and supercharging before described pre-mixing type gas machine air inlet pipeline is divided into supercharging before and after the pressurized machine (6), the gas machine biserial cylinder of biserial cylinder arrangement to share before pressurized machine intake manifold after air inlet pipeline and pressurized machine; Before described supercharging, air inlet pipeline includes: air-strainer (1), Y shape suction tude (2), fuel mixer (3), air inlet straight tube (4) and bellows I (5), be combined into one and be arranged on air inlet pipeline before the front pressurized machine of pressurized machine (6), above the angle formed at biserial cylinder to paralleling to the layout and installation with engine shaft; After described supercharging, intake manifold includes bellows II (7), bend pipe (8), bellows III (9), straight tube (10), closure (11) and T tube (12), be combined into one be arranged on pressurized machine (6) after single intake manifold, after supercharging intake manifold after bend pipe (8) break-in with engine shaft to paralleling to the layout and installation in the angle that biserial cylinder is formed; Before described pressurized machine, after air inlet pipeline and supercharging, intake manifold is the structure that is arranged in parallel up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488859.7U CN204163899U (en) | 2014-08-28 | 2014-08-28 | A kind of pre-mixing type gas machine air inlet pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488859.7U CN204163899U (en) | 2014-08-28 | 2014-08-28 | A kind of pre-mixing type gas machine air inlet pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN204163899U true CN204163899U (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420488859.7U Expired - Fee Related CN204163899U (en) | 2014-08-28 | 2014-08-28 | A kind of pre-mixing type gas machine air inlet pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112240255A (en) * | 2020-10-30 | 2021-01-19 | 广西玉柴机器股份有限公司 | Air inlet system of low-concentration gas engine |
-
2014
- 2014-08-28 CN CN201420488859.7U patent/CN204163899U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112240255A (en) * | 2020-10-30 | 2021-01-19 | 广西玉柴机器股份有限公司 | Air inlet system of low-concentration gas engine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20200828 |
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| CF01 | Termination of patent right due to non-payment of annual fee |