CN104141575A - Vapour-liquid separation device and electronic liquid spray unit containing vapour-liquid separation device - Google Patents
Vapour-liquid separation device and electronic liquid spray unit containing vapour-liquid separation device Download PDFInfo
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- CN104141575A CN104141575A CN201310169482.9A CN201310169482A CN104141575A CN 104141575 A CN104141575 A CN 104141575A CN 201310169482 A CN201310169482 A CN 201310169482A CN 104141575 A CN104141575 A CN 104141575A
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Abstract
The invention discloses a vapour-liquid separation device and an electronic liquid spray unit containing the vapour-liquid separation device, which belong to the technical field of engines. The vapour-liquid separation device comprises a main body containing a vapour-liquid separation chamber, and an exhaust channel connected with the vapour-liquid separation chamber, a liquid outlet channel and a liquid return channel which are connected with the vapour-liquid separation chamber, a cup body capable of being connected with and separated from the main body, and connected with the main body to form a dirt storage chamber, a liquid inlet channel connecting the vapour-liquid separation chamber with the dirt storage chamber, a filter located in the dirt storage chamber and covering the inlet of the liquid inlet channel, and a liquid supply channel connected to the dirt storage chamber, wherein the exhaust channel and the liquid supply channel are designed and arranged by means of effectively carrying out vapour-liquid bidirectional flowing. The vapour-liquid separation device disclosed by the invention has the advantages of being mall in size, light in weight, simple in structure, good in processing property, and convenient to detach and install.
Description
Technical field
The invention belongs to technical field of engines, be specifically related to electrically powered liquid spraying equipment, relate in particular to a kind of vapor-liquid separating device of internal-combustion engine electric liquid ejecting system and electrospray unit that comprises vapor-liquid separating device of being applied in.
Background technique
The work of electronically controlled liquid spraying technique combustion motor and the control of toxic emission are all most important.Modern Internal-Combustion Engine needs electronically controlled liquid injection system that liquid is provided conventionally, need electronically controlled liquid injection system, for example: the fuel system that fuel oil is sprayed into engine inlets is referred to as tuned port injection PI (port injection), the fuel system that fuel oil is directly sprayed in cylinder is referred to as in-cylinder direct injection DI (direct injection), SCR (the Selective Catalytic Reduction) system of minimizing nitrogen oxides emission need to be sprayed aqueous solution of urea (add-blue) and be entered outlet pipe, diesel particulation is flutterred the regeneration of catching device DPF (diesel particulate fi lter) system needs injected fuel to enter outlet pipe etc.
But, no matter be liquid fuel or aqueous solution of urea, in ejecting system, all can produce steam, also have and affect the existence of the impurity of injection apparatus.
Chinese patent " a kind of filtrating type vapor-liquid separating device " (patent No.: 200810059700.2) disclose a kind of vapor-liquid separating device, it is characterized in that, the entrance of liquid is positioned among fuel tank, and liquid filter is closed among the exchange volume with vapor-liquid separation.The advantage of this structure is not need a dirt apotheca, and fuel tank itself possesses this function, but its shortcoming is also fairly obvious: among the fluid box that part-structure must be installed, installation is restricted, and the replacing of liquid filter is also inconvenient.
For liquid injection system, the function of vapor-liquid separator is to provide for electronic injector the single-phase liquid disturbing without vapour phase liquid, in disclosed scheme, vapor-liquid separator and electronic injector are all arranged respectively and are installed, arrange although it is so more flexible, but manufacture cost is high, use and installation cost are also higher, even use loaded down with trivial details and are not easy to keep in repair.
Summary of the invention
The present invention is directed to the problems referred to above, object be to provide a kind of compact structure, be convenient to install the liquid ejection unit of being convenient to keep in repair vapor-liquid separating device and comprising vapor-liquid separating device.
For achieving the above object, the present invention takes following technological scheme: i.e. a kind of vapor-liquid separating device, comprise a main body containing vapor-liquid separation chamber, air outlet flue with UNICOM of vapor-liquid separation chamber, tapping channel and time fluid passage with UNICOM of vapor-liquid separation chamber, comprise that one can be connected with main body and the cup separating, cup and main body are connected to form dirt apotheca, one connects the liquid inlet channel of vapor-liquid separation chamber and dirt apotheca, a filter that is positioned at dirt apotheca and hides liquid inlet channel entrance, one leads to the liquid feeding channel of dirt apotheca, described air outlet flue and liquid feeding channel design and arrange according to the mode that can effectively carry out vapour-liquid two-way flow.
Can effectively carry out vapour-liquid two-way flow and refer to the opposite direction mobile in liquid phase, vapour phase can flow simultaneously.The primary condition that realizes vapour-liquid two-way flow is mainly that the trend of circulation area and runner need to meet certain requirement, circulation area is larger, more be conducive to vapour-liquid two-way flow, runner is arranged and is more approached Vertical direction, more be conducive to vapour-liquid two-way flow, runner is turned fewer, and angle of turn is less, is more conducive to realize vapour-liquid two-way flow.
Realize the concrete parameter size of vapour-liquid two-way flow relevant to the physical property of liquid, for capillary liquid, the circulation area needing is larger, and the circulation area that for example water is realized vapour-liquid two-way flow than gasoline is large.
For liquid feeding channel, circulation area is not less than 20 square millimeters; For air outlet flue, circulation area is not less than 10 square millimeters.
A kind of electric liquid injection unit containing above-mentioned vapor-liquid separator, comprise the pump housing containing electromagnetic actuator device and plunger pump, plunger pump comprises plunger bushing and plunger, an intake chamber, a liquid valve, a hyperbaric chamber between liquid valve and plunger, one is positioned at the hyperbaric chamber in liquid valve downstream, one connects the opened by pressure formula nozzle in hyperbaric chamber, the pump housing comprises vapor-liquid separating device, one is positioned at the liquid backflow hole on pump housing top, one is positioned at the inlet opening of pump housing bottom, inlet opening connects the tapping channel of vapor-liquid separating device, liquid backflow hole connects the fluid passage that returns of vapor-liquid separating device.
Further, the above-mentioned electric liquid injection unit containing vapor-liquid separator, comprises a high-pressure transfusion tube, and high-pressure transfusion tube connects hyperbaric chamber and opened by pressure formula nozzle.
Above-mentioned vapor-liquid separating device need to connect liquid storage tank on one side in the time of application, another side need to connect certain electronically controlled final controlling element, its function is to provide the not working liquid body containing vapour phase composition by tapping channel to described electronically controlled final controlling element, for example fuel oil or add-blue, final controlling element turns back to vapor-liquid separation chamber by untapped remaining liq by returning fluid passage, gas componant in vapor-liquid separation chamber is discharged to the top of liquid storage tank, and liquid storage tank constantly supplements to vapor-liquid separation the liquid being consumed.The normal mounting attitude of described vapor-liquid separating device is: air outlet flue is connected the position that must be positioned on vapor-liquid separation chamber or approach top with time fluid passage with vapor-liquid separation chamber, air outlet flue will lead to the top of liquid storage tank, in order to prevent that pollutant from directly entering You Qi separation chamber on the one hand, be conducive on the other hand the drop of formation and liquid feeding channel entrance, discharge in time vapor-liquid separation chamber thereby be conducive to gas; In addition, the entrance of tapping channel is positioned at the position of relatively going back to fluid passage bottom of vapor-liquid separation chamber.
The volume of vapor-liquid separation chamber must be greater than the minimum volume that can realize vapor-liquid separation, the minimum volume of described vapor-liquid separation chamber is relevant to the generation rate of steam, steam generation rate is higher, need the volume of the vapor-liquid separation chamber of preparing larger, the physical property of steam generation rate and working liquid body, the heat dissipation rate of ambient temperature and electronic actuators is relevant.
The present invention narrates mentioned vapour phase working liquid body does not have essential difference with the concept of the relative liquid phase operation materials such as gas componant.
Foregoing invention thought can further illustrate by following specific embodiment and application example.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Fig. 1 is the first example structure schematic diagram of vapor-liquid separating device provided by the invention;
Fig. 2 is the second example structure schematic diagram of vapor-liquid separating device provided by the invention;
Fig. 3 is electric liquid injection unit the first example structure schematic diagram containing vapor-liquid separating device provided by the invention;
Fig. 4 is electric liquid injection unit the second example structure schematic diagram containing vapor-liquid separating device provided by the invention;
Fig. 5 is vapor-liquid separating device the second embodiment's provided by the invention application example schematic diagram;
Fig. 6 is vapor-liquid separating device the first embodiment's provided by the invention application example schematic diagram;
Fig. 7 is electric liquid injection unit the first embodiment's containing vapor-liquid separating device provided by the invention application example.
Embodiment
As shown in Figure 1, in the first example structure schematic diagram, vapor-liquid separating device provided by the present invention comprises: a main body 10, main body 10 forms vapor-liquid separation chamber 11 jointly with end cap 10a, one with the air outlet flue 12 of 11 top UNICOMs of vapor-liquid separation chamber, tapping channel 13 and time fluid passage 14 with 11 UNICOMs of vapor-liquid separation chamber, a cup 15, between cup 15 and main body 10, can be threaded connection, after connecting, form dirt apotheca 16, one connects the liquid inlet channel 17 of vapor-liquid separation chamber 11 and dirt apotheca 16, a filter 18 that is positioned at dirt apotheca 16 and hides liquid inlet channel entrance 17a, one leads to the liquid feeding channel 19 of dirt apotheca 16, cup 15 comprises a limiting stopper 15a, being used for limiting filter 18 moves axially, to prevent that it from coming off from liquid inlet channel entrance 17a.
Above-mentioned parts can be made up by the mode of mold pressing of plastics, and main body 10 can be threaded connection with end cap 10a, also can stick with glue the mode of adopting or welding and connect.
In the time that working medium is gasoline, the circulation area of described air outlet flue 12 and liquid feeding channel 19 is all greater than 36 square millimeters, and liquid feeding channel 19 is from vertical duction substantially horizontal UNICOM dirt apotheca 16, and such design can ensure when ambient temperature is less than 80 degrees Celsius to use.Identical design is also adapted to aqueous solution of urea add-blue.
Vapor-liquid separation chamber 11 is spaces with a constant volume.In the time that liquid and vapor capacity material occupies the space of vapor-liquid separation chamber 11 simultaneously, under static state, vapor species will occupy its upper space, and liquid phase substance occupies lower space, be therefore simple liquid phase from the operation material of tapping channel output.But, in normal working conditions, operation material is in flowing state, fluid is from vapor-liquid separation chamber's stream 11 to tapping channel 13, in the time that described mobile speed is greater than certain value, likely there is reversing motion in vapour phase operation material, moves to bottom from the top of vapor-liquid separation chamber 11, likely exports from tapping channel 13.The heterodromous appearance of vapor species is relevant at the mean velocity of vapor-liquid separation chamber's 11 Vertical direction to fluid, reduces the mean velocity of fluid in vapor-liquid separation chamber's 11 Vertical direction, will effectively prevent vapour phase reverse flow, thereby realize the function of vapor-liquid separation.Reducing fluid is the volumes that increase vapor-liquid separation chamber 11 in the effective way of the mean velocity of vapor-liquid separation chamber's 11 Vertical direction, especially increases the volume of vapor-liquid separation chamber 11 by increasing the sectional area of substantially horizontal.For example, the final controlling element that is 20w for heat dissipation, operation material is gasoline, when operating ambient temperature is about 80 degrees Celsius, vapor-liquid separation chamber 11 sectional area in the horizontal direction need to be greater than 600 square millimeters, can effectively stop vapour phase reverse flow.
Vapor-liquid separating device working procedure:
Liquid enters dirt apotheca 16 by liquid feeding channel 19, after filtering, filter 18 enters liquid inlet channel 17, then arrive vapor-liquid separation chamber 11, clean liquid is flowed out for certain final controlling element by tapping channel 13, for example electric oil injector, after partially liq is consumed, remaining liq or liquid-vapor mixture return to vapor-liquid separation chamber 11 through returning fluid passage 14, and the air in vapor-liquid separation chamber 11 and liquid vapour are discharged by air outlet flue 12.Described liquid can be fuel oil or aqueous solution of urea etc.
If Fig. 2 is the second example structure schematic diagram of vapor-liquid separating device provided by the invention, one of difference of the second embodiment provided by the invention and the first embodiment provided by the invention is: the vapor-liquid separating device main body 10 that the present embodiment provides comprises a flange 10b and flange hole 10c, and the object that flange 10b is set in main body 10 is to be convenient to described gas-liquid separation device 1 is connected with the casing of liquid storage by flange hole 10c bolt.Two of the second embodiment provided by the invention and the first embodiment's provided by the invention difference is: described tapping channel 13 is positioned at end cap 10a; Three of the second embodiment provided by the invention and the first embodiment's provided by the invention difference is: described air outlet flue 12 all passes through flange 10b with liquid feeding channel 19, there is larger drop in the outlet 12a of exhaust passage 12 and the entrance 19a of liquid feeding channel 19, discharges from air outlet flue 12 to be conducive to gas.
The second embodiment of vapor-liquid separating device provided by the invention and the first embodiment's of vapor-liquid separating device provided by the invention working procedure is basic identical.
As Fig. 3, show electric liquid injection unit the first example structure schematic diagram containing vapor-liquid separating device provided by the invention.Described electric liquid injection unit comprises 21, one opened by pressure formula nozzles 39 of 20, one plunger pumps of 1, one power part of a vapor-liquid separating device.
Power part 20 comprises coil 28, armature 31, and magnet case 27, interior magnet case 26, magnetism resistent ring 26a, armature chamber 30, armature 31 is positioned at armature chamber 30 unrestricted motion vertically therein, and armature 31 comprises an armature runner 25 that runs through center and comprise taper hole.Magnet case 27 and armature 31 are made up of permeability magnetic material, such as pure iron etc., and magnetism resistent ring 26a is made up of non-magnet material, such as non-ferrous metal or plastics etc.
Plunger pump 21 comprises plunger 34, plunger bushing 35, outlet valve 36, hyperbaric chamber 38, plunger spring 33.Plunger bushing 35 comprises inlet opening 42, and plunger 34 can unrestricted motion in plunger bushing 35, and hyperbaric chamber 38 is the spaces that marked off in plunger bushing 35 by plunger 34 and outlet valve 36.Described outlet valve 36 comprises valve member 36a and is positioned at the outlet valve seat surface 37 of plunger bushing 35 one end, fuel-displaced valve spring 40, fuel-displaced valve member 36a can be a spheroid, also can be a cone or flat board, can be formed by materials such as metal or potteries, outlet valve seat surface 37 can be the conical surface forming in plunger bushing 35 outlet ports, can be also a plane, is conventionally formed by mach mode.
Above-mentioned, power part 20 is combined by frame 43 with plunger pump 21, and the main body 10 of described vapor-liquid separating device also can be passed through injection moulding integrated molding with frame 43 simultaneously.The end cap 10a of described vapor-liquid separating device 1 comprises air outlet flue 12 and returns fluid passage 14, between end cap 10a and frame 43, there is a pump end connection 23, pump end connection 23 comprises the pump end passage 23a that is communicated with armature chamber 30 and returns fluid passage 14, be provided with Sealing 24 in the joint of pump end passage 23a and armature chamber 30 and leaked outside to prevent working liquid body, be provided with Sealing 22 at pump end passage 23a with the joint of returning fluid passage 14 and leak outside to prevent working liquid body.Between end cap 10a and main body 10, can be connected by mechanical mode for example buckle, gluing welding etc.Between pump end connection 23 and frame 43, also can be connected by similar mechanical connection manner, or directly fixing by end cap 10a and frame 43.End cap 10a, pump end connection 23 can be made up of plastic materials.
Main body 10 is threaded connection and seals to avoid leaked liquid by sealing material 44 with liquid cup 15; Liquid inlet channel 17 is communicated with vapor-liquid separation chamber and intake chamber 41, and intake chamber 41 is annular spaces that a plunger bushing 35 and frame 43 form, and intake chamber 41 is interconnected by oil-through hole 29 and armature chamber 30.
Frame 43 forms hyperbaric chamber 38a with outlet valve 36, and valve member 36a and fuel-displaced valve spring 40 are positioned among the 38a of hyperbaric chamber, and fuel-displaced valve spring 40 acts between fuel-displaced valve member 36a and frame 43.
The armature 31 of power part 20 interacts by link 32 and the plunger 34 of plunger pump 21, and link 32 is posted by between armature 31 and plunger 34 and does not affect liquid and flows by armature runner 25, for example a kind of U-shaped structure.Link 32 can be made up of metal or nonmetallic material, for example stainless steel or plastics.
The working procedure of above-mentioned electric liquid injection unit is as follows:
In the initial position of armature 31, plunger spring 33 is pressed against upper end cap 23b above by plunger 34 and by link 32 by armature 31, and now inlet opening 42 is opened, and liquid enters hyperbaric chamber 38 and makes its space be full of liquid from intake chamber 41.
The coil 28 of power part 20 can be driven by the electrical signal of PWM form.In alive situation, electromagnetic field forms magnetic gap at magnetism resistent ring 26a place, armature 31 is moving downward containing promoting plunger 34 by link 32 under the effect in magnetic gap magnetic field, plunger 34 compression plunger springs 33, in the time that the end face of plunger 34 covers inlet opening 42, the fuel-displaced valve member 36a that liquid in hyperbaric chamber 38 was compressed and pushed open outlet valve 36 enters hyperbaric chamber 38a, hyperbaric chamber 38a opened by pressure formula nozzle 39 connects, when fluid pressure is during higher than institute's constant-pressure, nozzle group valve in nozzle 39 is opened, and liquid ejects thereupon.
Described opened by pressure formula nozzle 39 can be a kind of common boost in pressure valve type nozzle (poppet valve), also can be another kind of as Chinese patent " a kind of ball valve nozzle " (patent No.: the outward opening ball valve nozzle 200810162100) providing, described ball valve nozzle comprises spray orifice 39a, to change more easily injection direction.
When PWM drives signal before and after coil 28 two ends institute making alives are about to disappear, while acting on the mutual balance such as electromagnetic force, fluid pressure and piston spring power and inertial force etc. of plunger 34,34 of plungers stop moving downward, now the fluid pressure in hyperbaric chamber 38 and hyperbaric chamber 38a starts to decline, when the fluid pressure in the 38a of hyperbaric chamber is during lower than predetermined pressure (nozzle is opened required pressure), liquid stops spraying.Meanwhile, plunger 34 starts up and gets back to initial position under the effect of plunger spring 33, outlet valve 36 cuts out thereupon, the liquid remaining in the 38a of hyperbaric chamber keeps certain pressure, and fluid pressure in hyperbaric chamber 38 sharply declines, in the time that inlet opening 42 is opened again, liquid enters hyperbaric chamber 38 again from intake chamber 41, waits for next compression cycle.
Aforesaid liquid is the working liquid body of the electrospray unit of described oily steum separating device and oil-containing steum separating device.Liquid in intake chamber 41 from vapor-liquid separation chamber 11 and or liquid inlet channel 17, liquid from tapping channel 13 and or liquid inlet channel 17 merge to inlet opening 18b, then arrive intake chamber 41, part liquid enters hyperbaric chamber 38 by inlet opening 42, another part enters steam separation chamber 30 by oil-through hole 29, enter liquid backflow hole 23a by armature runner 25 again, then pass through back fluid passage 14 and enter vapor-liquid separation chamber 11, import liquid inlet channel 17 by tapping channel 13 again, air in vapor-liquid separation chamber 11 and liquid vapour are discharged by air outlet flue 12, thereby ensure that the liquid that flows into intake chamber 41 from liquid inlet channel 17 approaches single-phase, once otherwise the liquid that contains vapour phase composition enters hyperbaric chamber 38, described electrospray unit just can not in hyperbaric chamber 38, set up normal pressure, therefore also cannot normally work.
In said process, up along with plunger 34 and armature 31, liquid is with to liquid backflow hole 23a thereupon.In the to-and-fro motion process of armature 31, due to the nonsymmetry of the flow coefficient containing the armature runner 25 of taper hole, the to-and-fro motion of armature 31 will cause a net flow from inlet opening 18b to liquid backflow hole 23a direction, the heat that mobile meeting so constantly produces drive portion 20 is taken away, to ensure that described injection unit can continue normal work.
First liquid from the filtered of liquid container enter dirt apotheca 16 by liquid feeding channel 19, then after filter 18 filters by liquid inlet channel 17 vapor-liquid separation chamber 11, or directly enter intake chamber 41 through inlet opening 18b.
In said process, along with the accumulation of the pollutant bringing from the liquid of liquid storage tank filtered in dirt apotheca 16, the flow resistance of filter 18 can progressively increase, when debris accumulation is when a certain amount of, liquid cup 15 can be disassembled from body 10, after replacing filter 18, install back again original position.
Fig. 4 is electric liquid injection unit the second example structure schematic diagram containing vapor-liquid separating device provided by the invention, and electric liquid injection unit the first embodiment containing vapor-liquid separating device who provides with invention difference is structurally: comprise a high-pressure transfusion tube 45.Connection hyperbaric chamber, one end 38a of high-pressure transfusion tube 45, the other end connects nozzle 39.
High-pressure transfusion tube 45 comprises the first joint 47 being connected with hyperbaric chamber 38a and the second joint 48 being connected with nozzle 39, between the first joint 47 and the second joint 48, is interconnected by a high-voltage tube 49.High-voltage tube 49 can be metal tube, can be also nonmetal or metal-non-metal composite pipe, and tube wall can be one deck, can be also multilayer.
In order to be connected with high-pressure transfusion tube 45 is convenient, frame 43 is provided with one with hyperbaric chamber 38a adjacent portion and connects mouth 46, connects mouth 46 and comprises a delivery outlet 46a who is communicated with hyperbaric chamber 38a.
The first joint 47 can be selected nut structure and connect mouth 46 and be connected, also can select other general fast connecting structure and connect mouth 46 and be connected, in the time selecting nut structure, high-voltage tube 49 comprises a cone joint 49a, the mode compressing by the conical surface and connect between mouth 46 and form sealing relationship.Placement between the second joint 48 and nozzle 39 and the first joint and to connect Placement between mouth 46 similar.
The electrospray unit that the present embodiment provides also comprises vapor-liquid separating device 1, power part 20, plunger pump 21 and nozzle 39, basic identical in working principle and process with electric liquid injection unit the first embodiment containing vapor-liquid separating device that invention provides.In the present embodiment, liquid from hyperbaric chamber 38a by connect mouth 46 and high-pressure transfusion tube 45 by force feed to opened by pressure formula EFI nozzle 39, when reaching after predetermined pressure, nozzle open and atomizing of liquids.
The electrospray unit that the present embodiment provides, is suitable for injecting LPG in liquefied condition and other liquid, for example DEF (diesel exhaust fluid).The present embodiment provides by the spatially structure of detachment dynamic portion 20 (and plunger pump 21) and nozzle 39 of high-pressure transfusion tube 45, can avoid power part 20 (and plunger pump 21) away from the hot environment of nozzle 39 common work or the region of narrow space, be conducive to the normal work in electrospray unit and property easy for installation.Such application comprises the gasoline direct system GDI (gasoline direct injection) of injected petrol, comprises the SCR system of spraying add-blue liquid, and the DS of dpf regeneration (dosing system).For the little vehicle of some installing space, for example pedal motorcycle port fuel injection system, is also applicable to taking this separation structure.
Fig. 5 is vapor-liquid separating device the second embodiment's provided by the invention application example schematic diagram, and the object of this application is a kind of Electronic Fuel Injection (EFI) unit 2, the electron-like fuel injection apparatus being provided as Chinese patent ZL200510089207.1.
Electronic Fuel Injection (EFI) unit 2 comprises that oil-feed connects mouth 54, and oil return connects mouth 56 and nozzle 39.In this application example, vapor-liquid separating device the second embodiment's provided by the invention tapping channel 13 connects mouth 54 with oil-feed and is connected by oil inlet hose 55, returning fluid passage 14 connects mouth 56 with oil return and is connected by oil return flexible pipe 57, fuel oil connects mouth 54 from oil-feed and enters Electronic Fuel Injection (EFI) unit 2, part fuel oil sprays by nozzle 39, and Fuel Remained connects mouth 56 by oil return and turns back to vapor-liquid separation chamber 11.
Above-mentioned application also comprises a liquid storage tank 51 and liquid storage room wherein 52, the main body 10 of vapor-liquid separating device is fixed in described liquid storage tank 51 bottoms by bolt 53a and nut 53b, is placed with elaxtic seal 53 to prevent fuel leakage at flange 10b and liquid storage tank 51 bottoms.
The outlet 12a of air outlet flue 12 and the entrance 19a of liquid feeding channel 19 need to arrange larger drop, for example, more than 200mm, to prevent that liquid phase fuel oil from can not discharge vapor-liquid separation chamber in time.The outlet 12a of air outlet flue 12 enters the top that may arrive liquid storage tank 51 in addition, enters vapor-liquid separation chamber 11 with the pollutant that prevents liquid storage room 52 bottoms.The air outlet flue 12 internal circulation areas that this application example adopts are not less than 20 square millimeters, design and arrange according to the mode that can effectively carry out vapour-liquid two-way flow, the gas in vapor-liquid separation chamber 11 can be discharged in time.
The working procedure of described vapor-liquid separating device the second embodiment's application example is as follows:
Fuel oil in liquid storage room 52 enters dirt apotheca 16 by liquid feeding channel 19, after filtering, filter 18 enters liquid inlet channel 17 again, then arrive vapor-liquid separation chamber 11, liquid phase fuel oil is flowed out by tapping channel 13, enter Electronic Fuel Injection (EFI) unit 2 through oil inlet hose 55, wherein a part is sprayed by nozzle 39, and another part returns to vapor-liquid separation chamber 11 through oil return flexible pipe 57, and the air in vapor-liquid separation chamber 11 and fuel-steam are discharged via air outlet flue 12.
The fuel injection system vapor-liquid separation principle that this application example is set forth is adapted to other liquid injection systems such as SCR too.
If Fig. 6 is vapor-liquid separating device the first embodiment's provided by the invention application example schematic diagram, be applied to electronic fuel injection system by the first embodiment of vapor-liquid separating device provided by the present invention.
The application of this application example is that the universal gasoline port in market sprays common rail system 4, comprising rotary electronic oil pump 58, oil rail 59 and pressure governor 61, comprise a liquid storage tank 51 and liquid storage room wherein 52, rotary electronic oil pump 58 comprises that an oil-feed meets mouth 54 and the fuel-displaced mouth 58a that connects, oil rail, 59 comprise nozzle fuel feeding interface 60, pressure governor 61 comprises that oil return connects mouth 56, liquid storage tank 51 comprises that a fuel feeding meets mouth 19b and exhaust meets mouth 12b, tapping channel 13 connects mouth 54 by oil inlet hose 55 and oil-feed and is connected, oil return connects mouth 56 and is connected with back oil road 14 by oil return flexible pipe 57, fuel feeding meets mouth 19b and is connected with liquid feeding channel 19 by fuel lead 62a, exhaust meets mouth 12b and is connected with air outlet flue 12 by exhaust hose 62b.
Working principle and the process of this application example are summarized as follows: the fuel oil in liquid storage room 52 enters vapor-liquid separating device 1 from oil supply gallery entrance 19a by fuel lead 62a and liquid feeding channel 19, vapor-liquid separating device 1 provides clean liquid fuel by tapping channel 13 and oil inlet hose 55 to rotary electronic oil pump 58, rotary electronic oil pump 58 will provide oil supply rail 59 after fuel oil pressurization, part fuel oil offers oil nozzle (not chart) by nozzle fuel feeding interface 60 by fuel oil, another part fuel oil connects mouth 56 through pressure governor 61 from oil return, oil return flexible pipe 57 and back oil road 14 are got back to vapor-liquid separating device 1, the liquid-vapor mixture matter of discharging from vapor-liquid separating device 1 enters on liquid storage room 52 from air outlet flue outlet 12a through air outlet flue 12 and exhaust hose 62b again, wherein the effect of pressure governor 61 is the pressure relative reference pressure stabilitys that keep in oily rail 59.
The oil supply gallery entrance 19a of this application example and air outlet flue outlet 12a maintain large as far as possible drop, if there is vapour phase fuel oil in vapor-liquid separation chamber 11 like this, under the effect of difference of liquid level, vapour phase fuel oil is oppressed to be entered exhaust hose 62b and reaches the liquid level position that approaches liquid storage room 52.
If Fig. 7 is electric liquid injection unit the first embodiment's containing vapor-liquid separating device provided by the invention application example.Comprising the electrospray unit 5 containing vapor-liquid separating device, comprise a liquid storage tank 51 and liquid storage room wherein 52, fuel feeding meets mouth 19b and is connected with liquid feeding channel 19 by fuel lead 62a, and exhaust meets mouth 12b and is connected with air outlet flue 12 by exhaust hose 62b.
The working procedure of this application example is summarized as follows: the fuel oil in liquid storage room 52 enters the electrospray unit 5 containing vapor-liquid separating device from oil supply gallery entrance 19a by fuel lead 62a and liquid feeding channel 19, enter the top of liquid storage room 52 by exhaust hose 62b and exhaust outlet 12a from the vapour-liquid fuel combination of discharging by air outlet flue 12 containing the electrospray unit 5 of vapor-liquid separating device, thereby ensured that the gas in vapor-liquid separation chamber 11 can discharge in time.
This application example is adapted to the SCR system that operation material is aqueous solution of urea add-blue equally.
Vapor-liquid separating device provided by the invention and be not limited to above-mentioned application example containing the application of the electrospray unit of vapor-liquid separating device; its application area contains gasoline port ejecting system substantially; gasoline direct system; flexible fuel ejecting system; SCR system urea solution jet system; DPF fuel vent pipe inspection regenerative systems etc., within other other further scheme based on Spirit Essence of the present invention all belongs to the scope of the open and protection of the present invention.
Claims (5)
1. a vapor-liquid separating device, comprise a main body containing vapor-liquid separation chamber, air outlet flue with UNICOM of vapor-liquid separation chamber, tapping channel and time fluid passage with UNICOM of vapor-liquid separation chamber, it is characterized in that: comprise that one can be connected with main body and the cup separating, cup and main body are connected to form dirt apotheca, one connects the liquid inlet channel of vapor-liquid separation chamber and dirt apotheca, a filter that is positioned at dirt apotheca and hides liquid inlet channel entrance, one leads to the liquid feeding channel of dirt apotheca, described air outlet flue and liquid feeding channel design and arrange according to the mode that can effectively carry out vapour-liquid two-way flow.
2. the device that possesses as claimed in claim 1 vapor-liquid separation function, is characterized in that: described liquid feeding channel circulation area is not less than 20 square millimeters.
3. the device that possesses as claimed in claim 2 vapor-liquid separation function, is characterized in that: described air outlet flue circulation area is not less than 10 square millimeters.
4. an electric liquid injection unit, comprise the vapor-liquid separating device as one of claim 1-3, it is characterized in that: comprise the pump housing containing electromagnetic actuator device and plunger pump, plunger pump comprises plunger bushing and plunger, an intake chamber, a liquid valve, a hyperbaric chamber between liquid valve and plunger, one is positioned at the hyperbaric chamber in liquid valve downstream, one connects the opened by pressure formula nozzle in hyperbaric chamber, the pump housing comprises vapor-liquid separating device, one is positioned at the liquid backflow hole on pump housing top, one is positioned at the inlet opening of pump housing bottom, inlet opening connects the tapping channel of vapor-liquid separating device, liquid backflow hole connects the fluid passage that returns of vapor-liquid separating device.
5. electric liquid injection unit as claimed in claim 4, comprises a high-pressure transfusion tube, and high-pressure transfusion tube connects hyperbaric chamber and opened by pressure formula nozzle.
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| CN201310169482.9A CN104141575A (en) | 2013-05-07 | 2013-05-07 | Vapour-liquid separation device and electronic liquid spray unit containing vapour-liquid separation device |
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| CN201310169482.9A CN104141575A (en) | 2013-05-07 | 2013-05-07 | Vapour-liquid separation device and electronic liquid spray unit containing vapour-liquid separation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791161A (en) * | 2014-01-20 | 2015-07-22 | 浙江福爱电子有限公司 | Steam and liquid separating device and electronic liquid spraying unit with steam and liquid separating device |
| CN113074068A (en) * | 2021-04-02 | 2021-07-06 | 浙江吉利控股集团有限公司 | Fuel supply system for vehicle, control method of fuel supply system and vehicle |
| CN113464397A (en) * | 2020-03-30 | 2021-10-01 | 福爱电子(贵州)有限公司 | Double-pulse pump liquid injection device |
| CN114251208A (en) * | 2021-11-11 | 2022-03-29 | 徐州徐工挖掘机械有限公司 | Fuel supply system and fuel supply method |
-
2013
- 2013-05-07 CN CN201310169482.9A patent/CN104141575A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791161A (en) * | 2014-01-20 | 2015-07-22 | 浙江福爱电子有限公司 | Steam and liquid separating device and electronic liquid spraying unit with steam and liquid separating device |
| CN113464397A (en) * | 2020-03-30 | 2021-10-01 | 福爱电子(贵州)有限公司 | Double-pulse pump liquid injection device |
| CN113074068A (en) * | 2021-04-02 | 2021-07-06 | 浙江吉利控股集团有限公司 | Fuel supply system for vehicle, control method of fuel supply system and vehicle |
| CN114251208A (en) * | 2021-11-11 | 2022-03-29 | 徐州徐工挖掘机械有限公司 | Fuel supply system and fuel supply method |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhejiang FAI Electronics Co., Ltd. Document name: Notification of before Expiration of Request of Examination as to Substance |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141112 |