CN105649820A - Spray rail with stable regulation function - Google Patents
Spray rail with stable regulation function Download PDFInfo
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- CN105649820A CN105649820A CN201610062419.9A CN201610062419A CN105649820A CN 105649820 A CN105649820 A CN 105649820A CN 201610062419 A CN201610062419 A CN 201610062419A CN 105649820 A CN105649820 A CN 105649820A
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- Prior art keywords
- groove
- valve
- spray
- regulation function
- combustion 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
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
- F02M21/0212—Hydrocarbon fuels, e.g. methane or acetylene comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
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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
- F02M21/0245—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
- F02M21/0248—Injectors
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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
- F02M21/0248—Injectors
- F02M21/0251—Details of actuators therefor
- F02M21/0254—Electric actuators, e.g. solenoid or piezoelectric
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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
- F02M21/0248—Injectors
- F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
-
- 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
- F02M21/0248—Injectors
- F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
- F02M21/026—Lift valves, i.e. stem operated 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
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
- F02M31/125—Fuel
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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
Abstract
The invention discloses a spray rail with a stable regulation function. The spray rail comprises a gas inlet pipe and a hollow pipe, wherein a plurality of spray holes are formed in the upper end of the hollow pipe; electromagnetic valves are correspondingly mounted on the spray holes; a groove of which the section is a superior arc is formed in the inner wall of the hollow pipe; the spray holes directly face the arc bottom of the groove; a plurality of electrical heating pipes are mounted in the groove; one end of each electrical heating pipe penetrates through the end part of the hollow pipe and is connected with a wiring board; the open end of the groove is covered by a heat conducting board; and the interior of the groove and the interior of the hollow pipe are separated by the heat conducting board. Compared with the hydrothermal method, the electrical heating method has the advantage that the heating efficiency is greatly improved when the liquid leakage risk exists. Meanwhile, a plurality of the electrical heating pipes are placed in the arc-shaped groove and one side end of the groove is sealed by the wiring board, so that heat dissipation can be reduced and the electrical heating pipes are convenient to pick and place, that is, a user can determine the quantity of required electrical heating pipes in real time according to the amount of gas supply and complete the stable operation on gas output flow at the lowest heating cost.
Description
Technical field
The present invention relates to gas injection rail, specifically refer to a kind of spray rail with stable regulation function.
Background technology
Gas injection rail is necessaries on CNG-gasoline double-fuel car, but in the time that temperature is lower, low temperature makes the contraction of gas in low pressure line, is total between rail and filter and forms negative pressure in combustion gas, gas injection rail is opened difficult, affects the normal use of gas burning system; Adopt the mode of hydro-thermal to heat gas injection rail by us, can normally work, but water route need to be installed, increase pipeline and interfere, easily occur liquid leakage, increase maintenance difficulties.
Summary of the invention
The object of the present invention is to provide a kind of spray rail with stable regulation function, ensure normally the passing through of combustion gas, avoid occurring in fuel gas pipeline liquid simultaneously.
Object of the present invention is achieved through the following technical solutions:
A kind of spray rail with stable regulation function, comprise air inlet pipe and the hollow tube being communicated with it, have multiple spray-holes in hollow tube upper end, and correspondence is provided with magnetic valve on described spray-hole, have at described hollow tube inwall the groove that cross section is major arc, and described spray-hole is just at the bottom of the arc of described groove, multiple electrothermal tubes are installed in described groove, one end of described electrothermal tube is run through described hollow tube end and is connected with wiring plate, and be coated with heat-conducting plate on the open end of groove, heat-conducting plate is opened described inside grooves and hollow tube interior separation, described magnetic valve comprises the solenoid valve seat that is provided with solenoid on inwall, in described solenoid valve seat, be disposed with from inside to outside moving valve, housing, described housing upper end stretches out, and be provided with the connector of inner hollow in described housing lower end, between connector upper end and moving valve lower end, leave gap, at the elongated end of the housing valve nozzle that has been threaded, described moving valve inside has the air flue being communicated with connector middle part, spring is arranged in air flue, and on described moving valve sidewall, have two through holes that are communicated with air flue, moving valve upper end and valve nozzle internal communication, and on the circumference on valve nozzle top, have multiple fumaroles.
When the present invention works, combustion gas is injected directly in hollow tube by air inlet pipe, and after flowing in magnetic valve by spray-hole, passes through the fine adjustment of magnetic valve and then guarantee that combustion gas remains on best flow output, and between the air pressure in prior art mesolow pipeline is compared with spray rail low and that cause and filter, there is the situation of negative pressure, the present invention just has groove to the inwall place of spray-hole at hollow tube, and the cross section of groove is major arc shape, wrap up by the gas circulation region in hollow tube, utilize the caloric value of electrothermal tube and the heat transmission of heat-conducting plate, make combustion gas before entering hollow tube the environment temperature in hollow tube with respect to extraneous temperature drift, it is the pressure rising in hollow tube, combustion gas heated intensification to a certain extent after combustion gas enters hollow tube, effectively avoid producing negative pressure between spray rail and filter and affected the flow velocity of combustion gas, ensure the normal circulation of combustion gas. and, adopt Electric heating compared with hydro-thermal mode, in thering is leak of liquid risk, the efficiency of heating improves greatly, and multiple electric heating tube is placed in the groove of arc, by wiring plate, the side of groove is sealed, can reduce heat loss, simultaneously also convenient to the picking and placeing of electrothermal tube, user can determine in real time according to the size of fuel gas supply amount the number of electrothermal tube, ensures to complete the stable operation to combustion gas output flow with minimum heating cost.
Wherein, in prior art, the supply of combustion gas is often directly transmitted by fuel gas pipeline, in the requirement that does not reach precise fine-adjustment aspect the adjustment of air demand, makes the gas supply cannot practical requirement, when the present invention works, for supplying with normal discharge, moving valve is in contact with one another with the corresponding end face of connector, and through hole is stopped up by inner walls completely, combustion gas enters in air flue by connector inside, directly spray in valve nozzle by the open end at air flue top, flow out finally by the fumarole of crossing valve nozzle top, and in the time that needs increase gas supply amount, in solenoid valve seat, by solenoid, moving valve magnetic field is around changed, make to depart between moving valve and connector, be that moving valve moves up, now, the through hole being communicated with air flue gradually with valve nozzle internal communication, can be entered in valve nozzle by the open end at through hole and moving valve top by the combustion gas of the inner output of connector, only need the combustion gas input quantity that increases connector place can increase the final combustion gas output quantity of valve nozzle, compared with prior art, under the same prerequisite that increases combustion gas input quantity, the output quantity of single gas distribution channel is well below the output quantity of two gas distribution channels, and then the rate of change of fuel gas supply amount in rail is sprayed in realization, reach the gas flow object of regulation and control flexibly. and, multiple fumaroles are set on the excircle at valve nozzle top, the stable output of combustion gas when can adapting to the interior gas quantity increase of air flue or reducing, wherein valve nozzle is threaded with the elongated end of housing, can in the time that valve nozzle is impaired, carry out quick-replaceable to it, and then avoid the integral replacing to the parts such as spool and solenoid valve seat, reduce use cost.
Parallel with one another between multiple described electrothermal tubes. In the lasting use procedure of electrothermal tube, the loss of electrothermal tube is relatively large, be in multiple electrothermal tubes, to there will be the faults such as damage or short circuit, and multiple electrothermal tubes are arranged to parallel connection by the present invention, in the time that single electrothermal tube breaks down, can not affect the normal use of all the other electrothermal tubes, to prevent from spraying the output flow deficiency that forms negative pressure between rail and filter and cause combustion gas under low temperature environment.
Multiple described electrothermal tubes are evenly distributed in the circular arc passage that described groove and heat-conducting plate form. As preferably, multiple electrothermal tubes are uniformly distributed, make the circulation environment of combustion gas in hollow tube be subject to all the time the homogeneous radiation of heat, there is not the too high or too low situation of local temperature, thoroughly stop to spray between rail and filter and occur negative pressure condition under low temperature environment, 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, can ensure that on the one hand moving valve keeps moving back and forth on stable vertical direction, can also will reduce the wearing and tearing of moving valve end face on the other hand, extend the service life of moving valve.
Junction at described valve nozzle outer wall and housing elongated end inwall is provided with O type circle. Due to valve nozzle with housing elongated end for being threaded, for further strengthening the connection sealing between valve nozzle and housing, O type circle is set and can not only realizes the object that strengthens sealing property, can also cushion combustion gas in when ejection to the impact dynamics between housing and valve nozzle junction, with the stability of assurance device entirety.
Also comprise straight tube, described straight tube lower end is connected with the open end at moving valve top, the dead in line of described straight tube and valve nozzle. The operation distance of combustion gas in valve nozzle inside shortened in arranging of straight tube, avoid in the time increasing gas supply amount, by forming wadding stream between the combustion gas of flowing out in the combustion gas of ejecting in through hole and moving valve open-top end, cause combustion gas to reduce the combustion gas output quantity at fumarole place in the time of staying of valve nozzle inside simultaneously; And the axis of straight tube and the dead in line of valve nozzle, can distinguish the combustion gas of the combustion gas of flowing out in through hole and straight tube outflow, but finally converge in fumarole place, ensures the flow ejection efficiency at valve nozzle place.
The inwall on described valve nozzle top is outstanding down along straight tube axis direction, and the cross section of this protuberance is semicircle. as preferably, if the combustion gas direct effect of straight tube end output is to the inwall on valve nozzle top, launch by plane, combustion gas is likely launched to the sidewall of valve nozzle inside from the inwall on valve nozzle top, and then extend the persist time of combustion gas in valve nozzle, and the inwall on valve nozzle top is outstanding 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, reduce launching of combustion gas, guiding gas directly flow to fumarole place along its arc surface, further improve the gas flow ejection efficiency at valve nozzle place.
The present invention compared with prior art, has following advantage and beneficial effect:
1, the present invention adopts Electric heating compared with hydro-thermal mode, in thering is leak of liquid risk, the efficiency of heating improves greatly, and multiple electric heating tubes are placed in the groove of arc, by wiring plate, the side of groove is sealed, can reduce heat loss, also facilitate picking and placeing electrothermal tube simultaneously, be the number that user can determine in real time according to the size of fuel gas supply amount electrothermal tube, ensure to complete the stable operation to combustion gas output flow with minimum heating cost;
2, the present invention adopts Electric heating compared with hydro-thermal mode, in thering is leak of liquid risk, the efficiency of heating improves greatly, and multiple electric heating tubes are placed in the groove of arc, by wiring plate, the side of groove is sealed, can reduce heat loss, also facilitate picking and placeing electrothermal tube simultaneously, be the number that user can determine in real time according to the size of fuel gas supply amount electrothermal tube, ensure to complete the stable operation to combustion gas output flow with minimum heating cost;
3, the present invention is uniformly distributed multiple electrothermal tubes, make the circulation environment of combustion gas in hollow tube be subject to all the time the homogeneous radiation of heat, there is not the too high or too low situation of local temperature, thoroughly stop to spray between rail and filter and occur negative pressure condition under low temperature environment, improve the circulation efficiency of combustion gas.
Brief description of the drawings
Accompanying drawing described herein is used to provide the further understanding to the embodiment of the present invention, forms the application's a part, does not form the restriction to the embodiment of the present invention. In the accompanying drawings:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the sectional view of Fig. 1;
Fig. 3 is the structural representation of magnetic valve;
Mark and corresponding parts title in accompanying drawing:
1-air inlet pipe, 2-hollow tube, 3-spray-hole, 4-groove, 5-heat-conducting plate, 6-magnetic 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 exemplary embodiment of the present invention and explanation thereof are only for explaining the present invention, not as a limitation of the invention.
Embodiment 1
As shown in Fig. 1 ~ Fig. 3, the present embodiment comprises air inlet pipe 1 and the hollow tube 2 being communicated with it, have multiple spray-holes 3 in hollow tube 2 upper ends, and correspondence is provided with magnetic valve 6 on described spray-hole 3, have at described hollow tube 2 inwalls the groove 4 that cross section is major arc, and described spray-hole 3 is just at the bottom of the arc of described groove 4, multiple electrothermal tubes 7 are installed in described groove 4, one end of described electrothermal tube 7 is run through described hollow tube 2 ends and is connected with wiring plate 8, and on the open end of groove 4, be coated with heat-conducting plate 5, heat-conducting plate 5 is opened with hollow tube 2 interior separations inner described groove 4, described magnetic valve 6 comprises the solenoid valve seat 17 that is provided with solenoid on inwall, in described solenoid valve seat 17, be disposed with from inside to outside moving valve 13, housing 14, described housing 14 upper ends stretch out, and be provided with the connector 16 of inner hollow in described housing 14 lower ends, between connector 16 upper ends and moving valve 13 lower ends, leave gap, at the elongated end of housing 14 valve nozzle 20 that has been threaded, described moving valve 13 inside have the air flue 15 being communicated with connector 16 middle parts, spring 12 is arranged in air flue 15, and on described moving valve 13 sidewalls, have two through holes 9 that are communicated with air flue 15, moving valve 13 upper ends and valve nozzle 20 internal communication, and on the circumference on valve nozzle 20 tops, have multiple fumaroles 10.
When work, combustion gas is injected directly in hollow tube 2 by air inlet pipe 1, and by spray-hole 3 flow into magnetic valve 6 interior after, through the fine adjustment of magnetic valve 6 and then guarantee that combustion gas remains on best flow output, and between the air pressure in prior art mesolow pipeline is compared with spray rail low and that cause and filter, there is the situation of negative pressure, the present embodiment just has groove 4 to the inwall place of spray-hole 3 at hollow tube 2, and the cross section of groove 4 is major arc shape, wrap up by the gas circulation region in hollow tube 2, utilize the caloric value of electrothermal tube 7 and the heat transmission of heat-conducting plate 5, make combustion gas before entering hollow tube 2 environment temperature in hollow tube 2 with respect to extraneous temperature drift, it is the pressure rising in hollow tube 2, combustion gas heated intensification to a certain extent after combustion gas enters hollow tube 2, effectively avoid producing negative pressure between spray rail and filter and affected the flow velocity of combustion gas, ensure the normal circulation of combustion gas.
In air feed operation, for supplying with normal discharge, moving valve 13 is in contact with one another with the corresponding end face of connector 16, and through hole 9 is stopped up by housing 14 inwalls completely, combustion gas enters in air flue 15 by connector 16 inside, directly spray in valve nozzle 20 by the open end at air flue 15 tops, flow out finally by the fumarole 10 of crossing valve nozzle 20 tops, and in the time that needs increase gas supply amount, in solenoid valve seat 17, by solenoid, moving valve 13 magnetic field is around changed, make to depart between moving valve 13 and connector 16, be that moving valve 13 moves up, now, the through hole 9 being communicated with air flue 15 gradually with valve nozzle 20 internal communication, can be entered in valve nozzle 20 by the open end at through hole 9 and moving valve 13 tops by the combustion gas of connector 16 inner outputs, only need the combustion gas input quantity that increases connector 16 places can increase the final combustion gas output quantity of valve nozzle 20, compared with prior art, under the same prerequisite that increases combustion gas input quantity, the output quantity of single gas distribution channel is well below the output quantity of two gas distribution channels, and then the rate of change of fuel gas supply amount in rail is sprayed in realization, reach the gas flow object of regulation and control flexibly. and, multiple fumaroles 10 are set on the excircle at valve nozzle 20 tops, the stable output of combustion gas when can adapting to the interior gas quantity increase of air flue 15 or reducing, wherein valve nozzle 20 is threaded with the elongated end of housing 14, can in the time that valve nozzle 20 is impaired, carry out quick-replaceable to it, and then avoid the integral replacing to parts such as spool and solenoid valve seats 17, reduce use cost.
The present embodiment is the impact reducing between moving valve 13 and connector 16 ends, at gap location, cushion pad 18 is installed, can ensure that on the one hand moving valve 13 keeps moving back and forth on stable vertical direction, can also will reduce the wearing and tearing of moving valve 13 end faces on the other hand, extend the service life of moving valve 13. Due to valve nozzle 20 with housing 14 elongated ends for being threaded, for further strengthening the connection sealing between valve nozzle 20 and housing 14, O type circle 19 is set and can not only realizes the object that strengthens sealing property, can also cushion combustion gas in when ejection to the impact dynamics between housing 14 and valve nozzle 20 junctions, with the stability of assurance device entirety.
The present embodiment also comprises straight tube 11, and described straight tube 11 lower ends are connected with the open end at moving valve 13 tops, the dead in line of described straight tube 11 and valve nozzle 20. The operation distance of combustion gas in valve nozzle 20 inside shortened in arranging of straight tube 11, avoid in the time increasing gas supply amount, by forming wadding stream between the combustion gas of flowing out in the combustion gas of ejecting in through hole 9 and moving valve 13 open-top ends, cause combustion gas to reduce the combustion gas output quantity at fumarole 10 places in the time of staying of valve nozzle 20 inside simultaneously; And the dead in line of the axis of straight tube 11 and valve nozzle 20, the combustion gas that the combustion gas and the straight tube 11 that flow out in through hole 9 can be flowed out distinguishes, but finally converges in fumarole 10 places, the flow ejection efficiency at guarantee valve nozzle 20 places.
And, adopt Electric heating compared with hydro-thermal mode, in thering is leak of liquid risk, the efficiency of heating improves greatly, and multiple electric heating tube is placed in the groove 4 of arc, by wiring plate 8, the side of groove 4 is sealed, can reduce heat loss, simultaneously also convenient to the picking and placeing of electrothermal tube 7, user can determine in real time according to the size of fuel gas supply amount the number of electrothermal tube 7, ensures to complete the stable operation to combustion gas output flow with minimum heating cost.
Wherein, in the lasting use procedure of electrothermal tube 7, the loss of electrothermal tube 7 is relatively large, be in multiple electrothermal tubes 7, to 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, in the time that single electrothermal tube 7 breaks down, can not affect the normal use of all the other electrothermal tubes 7, to prevent from spraying the output flow deficiency that forms negative pressure between rail and filter and cause combustion gas under low temperature environment.
As preferably, multiple electrothermal tubes 7 are uniformly distributed, make the circulation environment of hollow tube 2 interior combustion gas be subject to all the time the homogeneous radiation of heat, there is not the too high or too low situation of local temperature, thoroughly stop to spray between rail and filter and occur negative pressure condition under low temperature environment, improve the circulation efficiency of combustion gas.
As preferably, if the combustion gas direct effect of straight tube 11 end outputs is to the inwall on valve nozzle 20 tops, launch by plane, combustion gas is likely launched to the sidewall of valve nozzle 20 inside from the inwall on valve nozzle 20 tops, and then extend the persist time of combustion gas in valve nozzle 20, and the inwall on valve nozzle 20 tops is outstanding down along straight tube 11 axis directions in the present invention, cross section is that semicircular protuberance can carry out guide effect to a certain extent to combustion gas, reduce launching of combustion gas, guiding gas directly flow to fumarole 10 places along its arc surface, further improve the gas flow ejection efficiency at valve nozzle 20 places.
Above-described detailed description of the invention; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present invention; the protection domain being not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. one kind has the spray rail of stable regulation function, comprise air inlet pipe (1) and the hollow tube (2) being communicated with it, have multiple spray-holes (3) in hollow tube (2) upper end, and in the upper correspondence of described spray-hole (3), magnetic valve (6) is installed, it is characterized in that: have the groove that cross section is major arc (4) at described hollow tube (2) inwall, and described spray-hole (3) is just at the bottom of the arc of described groove (4), multiple electrothermal tubes (7) are installed in described groove (4), one end of described electrothermal tube (7) is run through described hollow tube (2) end and is connected with wiring plate (8), and on the open end of groove (4), be coated with heat-conducting plate (5), heat-conducting plate (5) is opened with hollow tube (2) interior separation inner described groove (4), described magnetic valve (6) comprises the solenoid valve seat (17) that is provided with solenoid on inwall, in described solenoid valve seat (17), be disposed with from inside to outside moving valve (13), housing (14), described housing (14) upper end stretches out, and be provided with the connector (16) of inner hollow in described housing (14) lower end, between connector (16) upper end and moving valve (13) lower end, leave gap, at the elongated end of housing (14) valve nozzle (20) that has been threaded, described moving valve (13) inside has the air flue (15) being communicated with connector (16) middle part, spring (12) is arranged in air flue, and on described moving valve (13) sidewall, have two through holes (9) that are communicated with air flue (15), moving valve (13) upper end and valve nozzle (20) internal communication, and on the circumference on valve nozzle (20) top, have multiple fumaroles (10).
2. a kind of spray rail with stable regulation function according to claim 1, is characterized in that: parallel with one another between multiple described electrothermal tubes (7).
3. a kind of spray rail with stable regulation function according to claim 1, is characterized in that: multiple described electrothermal tubes (7) are evenly distributed in the circular arc passage that described groove (4) and heat-conducting plate (5) form.
4. a kind of spray rail with stable regulation function according to claim 1, is characterized in that: cushion pad (18) is installed in described gap.
5. a kind of spray rail with stable regulation function according to claim 1, is characterized in that: the junction at described valve nozzle (20) outer wall and housing (14) elongated end inwall is provided with O type circle (19).
6. a kind of spray rail with stable regulation function according to claim 1, it is characterized in that: also comprise straight tube (11), described straight tube (11) lower end is connected with the open end at moving valve (13) top, the dead in line of described straight tube (11) and valve nozzle (20).
7. a kind of spray rail with stable regulation function according to claim 6, is characterized in that: the inwall on described valve nozzle (20) top is outstanding 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 |
|---|---|---|---|
| CN201610062419.9A CN105649820A (en) | 2016-01-29 | 2016-01-29 | Spray rail with stable regulation function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610062419.9A CN105649820A (en) | 2016-01-29 | 2016-01-29 | Spray rail with stable regulation function |
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| CN105649820A true CN105649820A (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610062419.9A Pending CN105649820A (en) | 2016-01-29 | 2016-01-29 | Spray rail with stable regulation function |
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| CN (1) | CN105649820A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20160608 |