CN105840347A - Gas injection control system of dual-fuel locomotive - Google Patents
Gas injection control system of dual-fuel locomotive Download PDFInfo
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- CN105840347A CN105840347A CN201610185139.7A CN201610185139A CN105840347A CN 105840347 A CN105840347 A CN 105840347A CN 201610185139 A CN201610185139 A CN 201610185139A CN 105840347 A CN105840347 A CN 105840347A
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- hollow pipe
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- combustion gas
- gas
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0245—High pressure fuel supply systems; Rails; Pumps; Arrangement of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
- F02M21/0239—Pressure or flow regulators therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0293—Safety devices; Fail-safe measures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/06—Apparatus for de-liquefying, e.g. by heating
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention discloses a gas injection control system of a dual-fuel locomotive. The gas injection control system comprises a gas inlet pipe and a hollow pipe. A plurality of injection holes are formed in the upper end of the hollow pipe. Electromagnetic valves are installed on the injection holes correspondingly. A groove with the section being a major arc is formed in the inner wall of the hollow pipe, and the injection holes right face the arc bottom of the groove. A plurality of electric heating pipes are installed in the groove. One ends of the electric heating pipes penetrate through one end of the hollow pipe to be connected with a wiring plugboard. The open end of the groove is covered with a heat conducting plate. The interior of the groove is separated from the interior of the hollow pipe though the heat conducting plate. Compared with a water heating mode, an eclectic heating mode is adopted, so that the heating efficiency is greatly improved while the liquid leakage risk is avoided. Besides, the electric heating pipes are placed in the arc groove, the lateral end of the groove is sealed with the wiring plugboard, and therefore the electric heating pipes are conveniently taken and placed while heat loss can be reduced, that is, a user can determine the number of the electric heating pipes in real time according to the fuel gas supply quantity, and the effect that stable operation of the fuel gas output flow is completed at the minimum heating cost is guaranteed.
Description
Technical field
The present invention relates to gas injection rail, specifically refer to the gas puff Z-pinch system of a kind of double fuel locomotive.
Background technology
Gas injection rail is necessaries on CNG-gasoline double-fuel car, but when temperature is relatively low, low temperature makes the contraction of gas in low pressure line, forms negative pressure, make gas injection rail open and be difficult between combustion gas common rail and filter, affects the normal use of gas burning system；By the way of we use hydro-thermal, gas injection rail is heated so that it is can normally work, however it is necessary that installation water route, increase pipeline and interfere, fluid leakage easily occurs, increase maintenance difficulties.
Summary of the invention
It is an object of the invention to provide the gas puff Z-pinch system of a kind of double fuel locomotive, it is ensured that combustion gas normal through, avoid fuel gas pipeline occurs liquid simultaneously.
The purpose of the present invention is achieved through the following technical solutions:
nullA kind of gas puff Z-pinch system of double fuel locomotive，Including air inlet pipe and hollow pipe in communication，Multiple spray-hole is had in hollow pipe upper end，And correspondence is provided with electromagnetic valve on described spray-hole，The groove that cross section is major arc is had at described hollow pipe inwall，And at the bottom of described spray-hole just arc to described groove，Multiple electrothermal tube is installed in described groove，One end of described electrothermal tube is run through described hollow pipe end and is connected with wiring plate，And on the open end of groove, it is coated with heat-conducting plate，Described inside grooves is separated by heat-conducting plate with hollow tube，Described electromagnetic valve includes the solenoid valve seat being provided with solenoid on inwall，Moving valve it is disposed with from inside to outside in described solenoid valve seat、Housing，Described housing upper end stretches out，And the connector of inner hollow it is provided with in described housing lower end，Gap is left between connector upper end and moving valve lower end，Elongated end at housing is threaded valve nozzle，Have inside described moving valve and the air flue connected in the middle part of connector，Spring is arranged in air flue，And on described moving valve sidewall, have two through holes connected with air flue，Moving valve upper end is internal with valve nozzle to be connected，And on the circumference on valve nozzle top, have multiple fumarole.
When the present invention works, combustion gas is injected directly in hollow pipe by air inlet pipe, and after being flowed in electromagnetic valve by spray-hole, accurately regulating and then guaranteeing that combustion gas is maintained at optimal flow output through electromagnetic valve；And relatively low for the air pressure in prior art mesolow pipeline and between the spray rail and the filter that cause, the situation of negative pressure occurs, the present invention just has groove at inwall to spray-hole at hollow pipe, and the cross section of groove is major arc shape, will wrap up in the gas circulation region in hollow pipe, utilize the caloric value of electrothermal tube and the heat transfer of heat-conducting plate, make combustion gas in the ambient temperature entered before hollow pipe in hollow pipe relative to extraneous temperature drift, i.e. pressure in hollow pipe raises, after combustion gas enters hollow pipe, combustion gas is heated up to a certain extent, effectively prevent and produce negative pressure between spray rail and filter and affect the flow velocity of combustion gas, ensure the normal circulation of combustion gas.And, use Electric heating compared with hydro-thermal mode, while there is liquid risk of leakage, the efficiency of heating is greatly improved, and multiple electric heating tube is placed in the groove of arc, is sealed the side of groove by wiring plate, heat loss can be reduced, be also convenient for picking and placeing electrothermal tube, i.e. user can determine the number of electrothermal tube in real time according to the size of fuel gas supply amount simultaneously, it is ensured that completes the stable operation to combustion gas output flow with minimum heating cost.
Wherein, in prior art, the supply of combustion gas is directly transmitted often through fuel gas pipeline, does not reaches the requirement of precise fine-adjustment in terms of the adjustment of air demand so that gas supply cannot meet actual demand；When the present invention works, for supply normal discharge, moving valve contacts with each other with the corresponding end face of connector, and through hole is blocked by inner walls completely, combustion gas enters in air flue by inside connector, flowing in valve nozzle by the open end at air flue top, the fumarole eventually passing valve nozzle top flows out；And when needs increase gas supply amount, by solenoid, the magnetic field around moving valve is changed in solenoid valve seat, make to depart between moving valve and connector, i.e. moving valve moves up, now, the through hole connected with air flue is gradually internal with valve nozzle to be connected, i.e. can be entered in valve nozzle by the open end at through hole and moving valve top by the combustion gas of the internal output of connector, only need to increase the combustion gas input quantity at connector then can increase the combustion gas output that valve nozzle is final, compared with prior art, on the premise of same increase combustion gas input quantity, the output of single gas distribution channel is well below the output of double gas distribution channels, and then realize the rate of change of fuel gas supply amount in spray rail, reach the purpose of gas flow flexible modulation.And, the excircle at valve nozzle top arranges multiple fumarole, it is suitable for combustion gas when gas quantity in air flue increases or reduces stably to export, wherein valve nozzle is threadeded with the elongated end of housing, when valve nozzle is impaired, it can be carried out quick-replaceable, and then avoid the integral replacing to the parts such as spool and solenoid valve seat, reduce use cost.
Between multiple described electrothermal tubes parallel with one another.During the lasting use of electrothermal tube, the loss of electrothermal tube is relatively large, the most multiple electrothermal tubes there will be the faults such as damage or short circuit, and multiple electrothermal tubes are arranged to parallel connection by the present invention, i.e. when single electrothermal tube breaks down, do not interfere with the normal use of remaining electrothermal tube, to prevent from spraying the output flow deficiency forming negative pressure between rail and filter and cause combustion gas at low ambient temperatures.
Multiple described electrothermal tubes are evenly distributed in the circular arc passage that described groove and heat-conducting plate are formed.As preferably, multiple electrothermal tubes are uniformly distributed so that in hollow pipe, the circulation environment of combustion gas is all the time by the homogeneous radiation of heat, there is not the situation that local temperature is too high or too low, thoroughly stop to spray at low ambient temperatures and negative pressure condition occurs between rail and filter, improve the circulation efficiency of combustion gas.
In described gap, cushion pad is installed.For reducing the impact between moving valve and connector end, at gap location, cushion pad is installed, on the one hand ensure that and move back and forth on the vertical direction that moving valve holding is stable, on the other hand can also reduce the abrasion of moving valve end face, extend the service life of moving valve.
In the junction of described valve nozzle outer wall Yu housing elongated end inwall, O is installed.Due to valve nozzle with housing elongated end for threadeding, for strengthening the connection sealing between valve nozzle and housing further, O is set and can not only realize strengthening the purpose of sealing property, combustion gas can also be buffered when ejection to the impact dynamics between housing and valve nozzle junction, the stability overall to ensure device.
Also include that straight tube, described straight tube lower end are connected with the open end at moving valve top, described straight tube and the dead in line of valve nozzle.The setting of straight tube shortens combustion gas in the operation distance within valve nozzle, avoid when increasing gas supply amount, by forming wadding stream between the combustion gas flowed out in the combustion gas ejected in through hole and moving valve open-top end, cause combustion gas to reduce the combustion gas output at fumarole in the time of staying within valve nozzle simultaneously；And the axis of straight tube and the dead in line of valve nozzle, it is possible to the combustion gas that the combustion gas flowed out in through hole and straight tube flow out is distinguished, but finally converges at fumarole, it is ensured that the flow ejection efficiency at valve nozzle.
The inwall on described valve nozzle top highlights down along straight tube axis direction, and the cross section of this protuberance is semicircle.As preferably, if the combustion gas of straight tube end output is applied directly on the inwall on valve nozzle top, launched by plane, combustion gas is likely launched to the sidewall within valve nozzle from the inwall on valve nozzle top, and then extend combustion gas and persist the time in valve nozzle, and the inwall on valve nozzle top highlights down along straight tube axis direction in the present invention, cross section is that semicircular protuberance can carry out guide effect to a certain extent to combustion gas, i.e. reduce launching of combustion gas, guiding gas directly flow at fumarole along its arc surface, improve the gas flow ejection efficiency at valve nozzle further.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, the present invention uses Electric heating compared with hydro-thermal mode, while there is liquid risk of leakage, the efficiency of heating is greatly improved, and multiple electric heating tube is placed in the groove of arc, by wiring plate, the side of groove is sealed, heat loss can be reduced, be also convenient for electrothermal tube is picked and placeed simultaneously, i.e. user can determine the number of electrothermal tube in real time according to the size of fuel gas supply amount, it is ensured that completes the stable operation to combustion gas output flow with minimum heating cost；
2, the present invention uses Electric heating compared with hydro-thermal mode, while there is liquid risk of leakage, the efficiency of heating is greatly improved, and multiple electric heating tube is placed in the groove of arc, by wiring plate, the side of groove is sealed, heat loss can be reduced, be also convenient for electrothermal tube is picked and placeed simultaneously, i.e. user can determine the number of electrothermal tube in real time according to the size of fuel gas supply amount, it is ensured that completes the stable operation to combustion gas output flow with minimum heating cost；
3, multiple electrothermal tubes are uniformly distributed by the present invention, make in hollow pipe the circulation environment of combustion gas all the time by the homogeneous radiation of heat, there is not the situation that local temperature is too high or too low, thoroughly stop to spray at low ambient temperatures negative pressure condition occurs between rail and filter, improve the circulation efficiency of combustion gas.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes the part of the application, is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is present configuration schematic diagram；
Fig. 2 is the sectional view of Fig. 1；
Fig. 3 is the structural representation of electromagnetic valve；
Labelling and corresponding parts title in accompanying drawing:
1-air inlet pipe, 2-hollow pipe, 3-spray-hole, 4-groove, 5-heat-conducting plate, 6-electromagnetic valve, 7-electrothermal tube, 8-wiring plate, 9-through hole, 10-fumarole, 11-straight tube, 12-spring, 13-moving valve, 14-housing, 15-air flue, 16-connector, 17-solenoid valve seat, 18-cushion pad, 19-O type circle, 20-valve nozzle.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, not as a limitation of the invention.
Embodiment 1
As shown in Fig. 1 ~ Fig. 3, the present embodiment includes air inlet pipe 1 and hollow pipe 2 in communication, multiple spray-hole 3 is had in hollow pipe 2 upper end, and correspondence is provided with electromagnetic valve 6 on described spray-hole 3, the groove 4 that cross section is major arc is had at described hollow pipe 2 inwall, and at the bottom of described spray-hole 3 just arc to described groove 4, multiple electrothermal tube 7 is installed in described groove 4, one end of described electrothermal tube 7 is run through described hollow pipe 2 end and is connected with wiring plate 8, and on the open end of groove 4, it is coated with heat-conducting plate 5, heat-conducting plate 5 is by described groove 4 inside and spaced-apart in hollow pipe 2；Described electromagnetic valve 6 includes the solenoid valve seat 17 being provided with solenoid on inwall, moving valve 13 it is disposed with from inside to outside in described solenoid valve seat 17, housing 14, described housing 14 upper end stretches out, and the connector 16 of inner hollow it is provided with in described housing 14 lower end, gap is left between connector 16 upper end and moving valve 13 lower end, elongated end at housing 14 is threaded valve nozzle 20, described moving valve 13 is internal to be had and the air flue 15 connected in the middle part of connector 16, spring 12 is arranged in air flue 15, and on described moving valve 13 sidewall, have two through holes 9 connected with air flue 15, moving valve 13 upper end is internal with valve nozzle 20 to be connected, and on the circumference on valve nozzle 20 top, have multiple fumarole 10.
During work, combustion gas is injected directly in hollow pipe 2 by air inlet pipe 1, and is flowed into after in electromagnetic valve 6 by spray-hole 3, accurately regulating and then guaranteeing that combustion gas is maintained at optimal flow output through electromagnetic valve 6；And relatively low for the air pressure in prior art mesolow pipeline and between the spray rail and the filter that cause, the situation of negative pressure occurs, the present embodiment just has groove 4 at inwall to spray-hole 3 at hollow pipe 2, and the cross section of groove 4 is major arc shape, will wrap up in the gas circulation region in hollow pipe 2, utilize caloric value and the heat transfer of heat-conducting plate 5 of electrothermal tube 7, make combustion gas in the ambient temperature entered before hollow pipe 2 in hollow pipe 2 relative to extraneous temperature drift, i.e. pressure in hollow pipe 2 raises, after combustion gas enters hollow pipe 2, combustion gas is heated up to a certain extent, effectively prevent and produce negative pressure between spray rail and filter and affect the flow velocity of combustion gas, ensure the normal circulation of combustion gas.
In supply operation, for supply normal discharge, moving valve 13 contacts with each other with the corresponding end face of connector 16, and through hole 9 is blocked by housing 14 inwall completely, combustion gas enters in air flue 15 by connector 16 is internal, being flowed in valve nozzle 20 by the open end at air flue 15 top, the fumarole 10 eventually passing valve nozzle 20 top flows out；And when needs increase gas supply amount, by solenoid, the magnetic field around moving valve 13 is changed in solenoid valve seat 17, make to depart between moving valve 13 and connector 16, i.e. moving valve 13 moves up, now, the through hole 9 connected with air flue 15 is gradually internal with valve nozzle 20 to be connected, i.e. can be entered in valve nozzle 20 by the open end at through hole 9 and moving valve 13 top by the combustion gas of the internal output of connector 16, only need to increase the combustion gas input quantity at connector 16 then can increase the combustion gas output that valve nozzle 20 is final, compared with prior art, on the premise of same increase combustion gas input quantity, the output of single gas distribution channel is well below the output of double gas distribution channels, and then realize the rate of change of fuel gas supply amount in spray rail, reach the purpose of gas flow flexible modulation.And, the excircle at valve nozzle 20 top arranges multiple fumarole 10, it is suitable for combustion gas when gas quantity in air flue 15 increases or reduces stably to export, wherein valve nozzle 20 is threadeded with the elongated end of housing 14, when valve nozzle 20 is impaired, it can be carried out quick-replaceable, and then avoid the integral replacing to parts such as spool and solenoid valve seats 17, reduce use cost.
The present embodiment is to reduce the impact between moving valve 13 and connector 16 end, at gap location, cushion pad 18 is installed, on the one hand ensure that moving valve 13 to keep on stable vertical direction to move back and forth, on the other hand can also reduce the abrasion of moving valve 13 end face, extend the service life of moving valve 13.Due to valve nozzle 20 with housing 14 elongated end for threadeding, for strengthening the connection sealing between valve nozzle 20 and housing 14 further, O 19 is set and can not only realize strengthening the purpose of sealing property, combustion gas can also be buffered when ejection to the impact dynamics between housing 14 and valve nozzle 20 junction, the stability overall to ensure device.
The present embodiment also includes that straight tube 11, described straight tube 11 lower end are connected with the open end at moving valve 13 top, described straight tube 11 and the dead in line of valve nozzle 20.The setting of straight tube 11 shortens combustion gas in the operation distance within valve nozzle 20, avoid when increasing gas supply amount, by forming wadding stream between the combustion gas flowed out in the combustion gas ejected in through hole 9 and moving valve 13 open-top end, cause combustion gas to reduce the combustion gas output at fumarole 10 in the time of staying within valve nozzle 20 simultaneously；And the axis of straight tube 11 and the dead in line of valve nozzle 20, it is possible to the combustion gas that the combustion gas flowed out in through hole 9 and straight tube 11 are flowed out is distinguished, but finally converges at fumarole 10, it is ensured that the flow ejection efficiency at valve nozzle 20.
And, use Electric heating compared with hydro-thermal mode, while there is liquid risk of leakage, the efficiency of heating is greatly improved, and multiple electric heating tube is placed in the groove 4 of arc, is sealed the side of groove 4 by wiring plate 8, heat loss can be reduced, it is also convenient for picking and placeing electrothermal tube 7, i.e. user simultaneously and can determine the number of electrothermal tube 7 according to the size of fuel gas supply amount in real time, it is ensured that complete the stable operation to combustion gas output flow with minimum heating cost.
Wherein, during the lasting use of electrothermal tube 7, the loss of electrothermal tube 7 is relatively large, the most multiple electrothermal tubes 7 there will be the faults such as damage or short circuit, and multiple electrothermal tubes 7 are arranged to parallel connection by the present embodiment, i.e. when single electrothermal tube 7 breaks down, do not interfere with the normal use of remaining electrothermal tube 7, to prevent from spraying the output flow deficiency forming negative pressure between rail and filter and cause combustion gas at low ambient temperatures.
As preferably, multiple electrothermal tubes 7 are uniformly distributed, make in hollow pipe 2 circulation environment of combustion gas all the time by the homogeneous radiation of heat, there is not the situation that local temperature is too high or too low, thoroughly stop to spray at low ambient temperatures and negative pressure condition occurs between rail and filter, improve the circulation efficiency of combustion gas.
As preferably, if the combustion gas of straight tube 11 end output is applied directly on the inwall on valve nozzle 20 top, launched by plane, combustion gas is likely launched to the sidewall within valve nozzle 20 from the inwall on valve nozzle 20 top, and then extend combustion gas and persist the time in valve nozzle 20, and the inwall on valve nozzle 20 top highlights down along straight tube 11 axis direction in the present invention, cross section is that semicircular protuberance can carry out guide effect to a certain extent to combustion gas, i.e. reduce launching of combustion gas, guiding gas directly flow at fumarole 10 along its arc surface, improve the gas flow ejection efficiency at valve nozzle 20 further.
Above-described detailed description of the invention; the purpose of the present invention, technical scheme and beneficial effect are further described; it is it should be understood that; the foregoing is only the detailed description of the invention of the present invention; the protection domain being not intended to limit the present invention; all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, should be included within the scope of the present invention.
Claims (7)
- null1. the gas puff Z-pinch system of a double fuel locomotive，Including air inlet pipe (1) and hollow pipe (2) in communication，Multiple spray-hole (3) is had in hollow pipe (2) upper end，And in described spray-hole (3) upper correspondence, electromagnetic valve (6) is installed，It is characterized in that: have, at described hollow pipe (2) inwall, the groove (4) that cross section is major arc，And at the bottom of described spray-hole (3) just arc to described groove (4)，Multiple electrothermal tube (7) is installed in described groove (4)，One end of described electrothermal tube (7) is run through described hollow pipe (2) end and is connected with wiring plate (8)，And on the open end of groove (4), it is coated with heat-conducting plate (5)，Heat-conducting plate (5) is by internal for described groove (4) and hollow pipe (2) interior spaced-apart，Described electromagnetic valve (6) includes the solenoid valve seat (17) being provided with solenoid on inwall，Moving valve (13) it is disposed with from inside to outside in described solenoid valve seat (17)、Housing (14)，Described housing (14) upper end stretches out，And the connector (16) of inner hollow it is provided with in described housing (14) lower end，Gap is left between connector (16) upper end and moving valve (13) lower end，Elongated end at housing (14) is threaded valve nozzle (20)，Described moving valve (13) is internal has the air flue (15) connected with connector (16) middle part，Spring (12) is arranged in air flue，And on described moving valve (13) sidewall, have two through holes (9) connected with air flue (15)，Moving valve (13) upper end is internal with valve nozzle (20) to be connected，And on the circumference on valve nozzle (20) top, have multiple fumarole (10)；Combustion gas is injected directly in hollow pipe by air inlet pipe, and after being flowed in electromagnetic valve by spray-hole, accurately regulating and then guaranteeing that combustion gas is maintained at optimal flow output through electromagnetic valve；And relatively low for the air pressure in prior art mesolow pipeline and between the spray rail and the filter that cause, the situation of negative pressure occurs, just groove is had at inwall to spray-hole at hollow pipe, and the cross section of groove is major arc shape, will wrap up in the gas circulation region in hollow pipe, utilize the caloric value of electrothermal tube and the heat transfer of heat-conducting plate, make combustion gas in the ambient temperature entered before hollow pipe in hollow pipe relative to extraneous temperature drift, i.e. pressure in hollow pipe raises, after combustion gas enters hollow pipe, combustion gas is heated up to a certain extent, effectively prevent and produce negative pressure between spray rail and filter and affect the flow velocity of combustion gas, ensure the normal circulation of combustion gas.
- The gas puff Z-pinch system of a kind of double fuel locomotive the most according to claim 1, it is characterised in that: parallel with one another between multiple described electrothermal tubes (7).
- The gas puff Z-pinch system of a kind of double fuel locomotive the most according to claim 1, it is characterised in that: multiple described electrothermal tubes (7) are evenly distributed in the circular arc passage that described groove (4) and heat-conducting plate (5) are formed.
- The gas puff Z-pinch system of a kind of double fuel locomotive the most according to claim 1, it is characterised in that: cushion pad (18) is installed in described gap.
- The gas puff Z-pinch system of a kind of double fuel locomotive the most according to claim 1, it is characterised in that: in the junction of described valve nozzle (20) outer wall Yu housing (14) elongated end inwall, O (19) is installed.
- The gas puff Z-pinch system of a kind of double fuel locomotive the most according to claim 1, it is characterized in that: also include straight tube (11), described straight tube (11) lower end is connected with the open end at moving valve (13) top, described straight tube (11) and the dead in line of valve nozzle (20).
- The gas puff Z-pinch system of a kind of double fuel locomotive the most according to claim 6, it is characterised in that: the inwall on described valve nozzle (20) top highlights down along straight tube (11) axis direction, and the cross section of this protuberance is semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610185139.7A CN105840347A (en) | 2016-03-29 | 2016-03-29 | Gas injection control system of dual-fuel locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610185139.7A CN105840347A (en) | 2016-03-29 | 2016-03-29 | Gas injection control system of dual-fuel locomotive |
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| CN105840347A true CN105840347A (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610185139.7A Pending CN105840347A (en) | 2016-03-29 | 2016-03-29 | Gas injection control system of dual-fuel locomotive |
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Citations (5)
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|---|---|---|---|---|
| GB2088475A (en) * | 1980-11-27 | 1982-06-09 | Daimler Benz Ag | Liquid-gas supply apparatus for an internal combustion engine |
| US4492208A (en) * | 1983-07-01 | 1985-01-08 | Mcgraw-Edison Company | Liquid propane gas fuel system |
| US20040173192A1 (en) * | 2003-03-04 | 2004-09-09 | Chapeau, Inc. | Carburetion for natural gas fueled internal combustion engine using recycled exhaust gas |
| WO2010025688A1 (en) * | 2008-09-07 | 2010-03-11 | 胜利油田胜利动力机械集团有限公司 | Piston-reciprocating type low-concentration gas generator group |
| CN105604743A (en) * | 2016-01-29 | 2016-05-25 | 成都杜嘉机电有限公司 | Gas injection device for automobile |
-
2016
- 2016-03-29 CN CN201610185139.7A patent/CN105840347A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2088475A (en) * | 1980-11-27 | 1982-06-09 | Daimler Benz Ag | Liquid-gas supply apparatus for an internal combustion engine |
| US4492208A (en) * | 1983-07-01 | 1985-01-08 | Mcgraw-Edison Company | Liquid propane gas fuel system |
| US20040173192A1 (en) * | 2003-03-04 | 2004-09-09 | Chapeau, Inc. | Carburetion for natural gas fueled internal combustion engine using recycled exhaust gas |
| WO2010025688A1 (en) * | 2008-09-07 | 2010-03-11 | 胜利油田胜利动力机械集团有限公司 | Piston-reciprocating type low-concentration gas generator group |
| CN105604743A (en) * | 2016-01-29 | 2016-05-25 | 成都杜嘉机电有限公司 | Gas injection device for automobile |
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Application publication date: 20160810 |