CN206360806U - A kind of mixer for natural gas in use - Google Patents
A kind of mixer for natural gas in use Download PDFInfo
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- CN206360806U CN206360806U CN201621300303.6U CN201621300303U CN206360806U CN 206360806 U CN206360806 U CN 206360806U CN 201621300303 U CN201621300303 U CN 201621300303U CN 206360806 U CN206360806 U CN 206360806U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
A kind of mixer for natural gas in use, including shell body, inner chamber body and air cavity, the shell body is internally provided with coaxial inner chamber body, inner chamber body is internally provided with air cavity, the inner chamber body is hollow waist type body structure, enter air portion including what is be connected successively from the bottom to top, mixing unit, go out gaseous mixture portion, enter air portion, mixing unit, the inwall for going out gaseous mixture portion and shell body surrounds a natural gas pressure stabilizing cavity altogether, the air cavity include connecting plate and with the one-to-one air cavity air inlet pipe of its plate, the outer end of air cavity air inlet pipe passes the inside that natural gas pressure stabilizing cavity is extended to after interior air cavity connecting hole, the cross section of air cavity air inlet pipe is droplet-shaped structure wide at the top and narrow at the bottom, anticreep stern construction is provided with the upper arc sections of its outer end.Not only voltage stabilizing cavity space is larger by the design, and gaseous mixture flowing is smooth, and the uniformity of mixing is higher, mixed effect is preferable, and stability is also very strong.
Description
Technical field
The utility model is related to a kind of natural gas engine facility, more particularly to a kind of mixer for natural gas in use, specific to be applicable
In increase voltage stabilizing cavity space, it is ensured that gaseous mixture flowing is smooth, to improve the uniformity and mixed effect of mixing.
Background technology
Shortage of resources, environmental pollution cause country is given to new energy power development to support energetically.Natural gas is used as cleaning
The energy, is widely used in the industries such as automobile, engineering.Market survey data display, the natural gas engine market demand greatly, then adds
The upper national subsidy policy to new-energy automobile, people are more favored new-energy automobile.Each cart enterprise is long term growth consideration,
Dynamics of investment is all increased, increases new-energy automobile technological reserve, by effort in recent years, natural gas engine is gradually ripe,
Occupation rate of market is increasing.
Natural gas supply system is the important component of natural gas engine, and blender fires as natural gas engine
The core component of gas feed system, mainly mixes fresh air with natural gas, is burnt in supply Cylinder of Natural Gas Engine.It is mixed
The mixed characteristic of clutch has significant impact to engine job stability, reliability.
Authorization Notice No. is CN2448935Y, and authorized announcement date is that in September, 2001 utility model patent of 19 days is disclosed
A kind of Double-throat gas mixer on gasoline-natural gas variable fuel vehicle and gas-fueled vehicles, it includes containing air inlet
The shell of pipe and air duct, with the fuse of cage connection in shell, has containing the weight communicated with air duct in fuse
The gas mixing chamber of aditus laryngis and double aditus laryngis, the air mixture passage communicated with double aditus laryngis, have on gas mixing chamber bottom
Multiple apertures communicated with air inlet pipe.Although this is designed to the mixing uniformity for improving natural gas, air to a certain extent,
But it still has following defect：
First, the natural gas in the design is mixed by aperture into fuse with air, and aperture is located at natural gas
The top of admittance area, is so designed that, not only the entrance passage of natural gas is narrow, and admission velocity is slower, and voltage stabilizing cavity space
It is smaller, it is unfavorable for natural gas and smoothly enters fuse, causes to reduce the concentration and the uniformity of gaseous mixture；
Secondly, the fuse in the design is upper and lower separation structure, and the diameter difference of up-down structure is larger, and connected mode
To be mutually inserted, it is not smooth that this is easily caused circulation of the gaseous mixture inside it, so that the mixing to natural gas, air is interfered,
Natural gas, the mixture homogeneity of air are reduced, mixed effect is poor.
The content of the invention
The purpose of this utility model be overcome that voltage stabilizing cavity space present in prior art is smaller, gaseous mixture flowing is not smooth,
The relatively low defect of the uniformity of mixing and problem there is provided a kind of voltage stabilizing cavity space is larger, gaseous mixture flowing is smooth, mix it is uniform
The higher mixer for natural gas in use of degree.
To realize object above, technical solution of the present utility model is：A kind of mixer for natural gas in use, including shell
Body, inner chamber body and air cavity, the shell body is internally provided with coaxial inner chamber body, and inner chamber body is internally provided with air cavity
Body, the air cavity, inner chamber body are communicated with the air admission unit set on shell body sidewall, and on inner chamber body and shell body bottom
The air inlet unit of setting is communicated；
The inner chamber body be hollow waist type body structure, from the bottom to top including be connected successively enter air portion, mixing unit,
Go out gaseous mixture portion, it is described enter air portion be that to offer inner chamber on up-narrow and down-wide frustum structure, the gusset of the mixing unit natural
Gas blowout perforation, interior air cavity connecting hole, it is described go out gaseous mixture portion be under narrow wide frustum structure；
It is described enter air portion gusset on the nearly position of its bottom and the inwall of shell body the position of its nearly bottom seal
Coordinate, it is described go out the top in gaseous mixture portion and the inwall of shell body on nearly position sealing at the top of it coordinate, enter air portion, mixing
Portion, go out gaseous mixture portion and the inwall of shell body surrounds a natural gas pressure stabilizing cavity, the inner side and inner chamber of the natural gas pressure stabilizing cavity altogether
Gas spraying perforation, air cavity are communicated, and outside is communicated with air admission unit.
It is described go out gaseous mixture portion include lower narrow portion, transition part and outer width portion, the mixing unit is successively through lower narrow portion, transition
Communicated behind portion, outer width portion with shell gas outlet, the transition part for it is a kind of upwardly extend extend out arc structure, the outer width portion
Periphery and shell body inwall on nearly position sealing at the top of it coordinate.
The air admission unit includes inlet suction port and the air inlet being opened on shell body sidewall, and the inlet suction port is through entering
Communicated after gas port with natural gas pressure stabilizing cavity, and air inlet is less than the junction setting into air portion, mixing unit.
It is described enter air portion gusset on be provided with the position that the inwall of shell body is connected outside the inner chamber of concave structure
Shell connecting portion, the inner chamber cage connection portion includes coaxial upper bulge loop bar, middle concave ring groove, lower convex ring bar, the middle concave ring groove position
Between upper bulge loop bar, lower convex ring bar, and the outer face of upper bulge loop bar, lower convex ring bar coordinates with the inner wall sealing of shell body.
The air inlet unit include coaxial upper air inlet portion, lower inlet section, it is described enter air portion successively through upper air inlet portion, under
Communicated behind inlet section with shell air inlet, the upper air inlet portion is cylindrical structure, the lower inlet section is up-narrow and down-wide circle
Frustum structure.
The air cavity includes connecting plate and at least two air cavity air inlet pipe, and plate and air cavity air inlet pipe on connecting plate
Correspond and set；
The connecting plate is located at the plate on the center position of mixing unit, connecting plate and the air cavity air inlet pipe corresponding to it
One end is connected, and the other end of the air cavity air inlet pipe passes the inside that natural gas pressure stabilizing cavity is extended to after interior air cavity connecting hole, and
Multiple air cavity gas spraying perforations are offered on the side wall of air cavity air inlet pipe.
The quantity of the air cavity air inlet pipe is four, and set along same even circumferential；The number of the connecting plate upper sheet space
Measure as four, and set along same even circumferential.
The cross section of the air cavity air inlet pipe is droplet-shaped structure wide at the top and narrow at the bottom, including upper arc sections and lower acute angle part,
The bottom surface of upper arc sections is connected with the top surface of lower acute angle part, and inner chamber natural gas injection hole position is in upper arc sections summit, upper circle
Between arc portion bottom surface.
Junction of the air cavity gas spraying perforation along upper arc sections, lower acute angle part is uniformly arranged.
Anticreep stern construction is provided with the one end being located in the air cavity air inlet pipe in natural gas pressure stabilizing cavity, the anticreep caudal knot
Structure is vertical with the side of upper arc sections to be connected, and anticreep stern construction is narrower than arc sections.
Compared with prior art, the beneficial effects of the utility model are：
1st, in a kind of mixer for natural gas in use of the utility model, what responsible natural gas, air were mixed is inner chamber body, and it is hollow
Waist type body structure, enter air portion, mixing unit including what is be connected successively from the bottom to top, go out gaseous mixture portion, in use, entering air
Portion, mixing unit, go out gaseous mixture portion and the inwall of shell body surrounds a natural gas pressure stabilizing cavity, the space of the natural gas pressure stabilizing cavity altogether
It is very big, it is almost contour with whole inner chamber body so that natural gas is more uniform along internal chamber wall EDS maps（Each micro unit in pressure stabilizing cavity
Pressure is identical）, it is ensured that the flow velocity that natural gas flows into mixing unit is consistent, beneficial to the mixture homogeneity for improving natural gas and air,
And inner chamber gas spraying perforation, the air cavity of natural gas flow warp are all located at the sidepiece of natural gas pressure stabilizing cavity, are easy to natural gas
Flowing, beneficial to the mixture homogeneity for improving natural gas, air, in addition, whole inner chamber body enters air portion, mixing for what is led directly to up and down
Portion, go out gaseous mixture portion, connect smooth, beneficial to the flowing of gas, the mixing of natural gas, air will not be interfered, on the contrary can
Improve the uniformity of mixing.Therefore, not only voltage stabilizing cavity space is larger for the utility model, and gaseous mixture flowing is smooth, and mixing
The uniformity is higher, mixed effect is preferable.
2nd, in a kind of mixer for natural gas in use of the utility model, the gaseous mixture portion that goes out in inner chamber body includes lower narrow portion, transition part
With outer width portion, wherein, transition part for it is a kind of upwardly extend extend out arc structure, the design can be to by its internal gaseous mixture
Flow-disturbing is produced, further promotes the phase counterdiffusion of gas, mixture homogeneity is improved again.Therefore, the utility model can improve gas
The uniformity of body mixing, strengthens mixed effect.
3rd, in a kind of mixer for natural gas in use of the utility model, air cavity is internally provided with inner chamber body, the air cavity bag
Connecting plate and at least two air cavity air inlet pipe are included, connecting plate is located at plate and its institute on the center position of mixing unit, connecting plate
One end of corresponding air cavity air inlet pipe is connected, and the other end of the air cavity air inlet pipe is passed to be extended to naturally after interior air cavity connecting hole
The inside of gas pressure stabilizing cavity, and multiple air cavity gas spraying perforations are offered on the side wall of air cavity air inlet pipe, in use, air cavity enters
Air cavity gas spraying perforation on tracheae may be either that natural gas provides flow channel, and natural gas is introduced in mixing unit, and energy
Change air motion state, improve flow perturbation function, exchanged with increasing power between gas（Phase counterdiffusion, collision hair between air-flow
Raw momentum-exchange, promotes air-flow uniformly to mix, and Combination is improved）, make Diffusion of gas stream more perfect, improve natural gas, air and mix
The uniformity of conjunction, it is better especially when the cross section of air cavity air inlet pipe is droplet-shaped structure wide at the top and narrow at the bottom.Therefore, originally
Utility model can improve the uniformity of gas mixing, strengthen mixed effect.
4th, it is located at one end in natural gas pressure stabilizing cavity in a kind of mixer for natural gas in use of the utility model, in air cavity air inlet pipe
Anticreep stern construction is provided with end face, the anticreep stern construction is vertical with the side of upper arc sections to be connected, and anticreep stern construction is narrower than
Arc sections, the design can prevent that air cavity comes off in the course of work, it is ensured that the stability of equipment operation.Meanwhile, air cavity is with even
Fishplate bar is that core fits together air cavity air inlet pipe, and the plate on connecting plate is corresponded with air cavity air inlet pipe and set, and this sets
Meter can both make the more fastening that air cavity is installed, and will not be fallen off when using, and can provide guiding for the assembling of air cavity,
Improve installation effectiveness.Therefore, not only stability is stronger for the utility model, and installation effectiveness is higher.
Brief description of the drawings
Fig. 1 is dimensional structure diagram of the present utility model.
Fig. 2 is Fig. 1 sectional view.
Fig. 3 is structural representation when air cavity is not installed in Fig. 2.
Fig. 4 is the sectional view of inner chamber body in Fig. 2.
Fig. 5 is the dimensional structure diagram of inner chamber body in Fig. 1.
Fig. 6 is the dimensional structure diagram of air cavity air inlet pipe in Fig. 1.
Fig. 7 is the dimensional structure diagram of connecting plate in Fig. 1.
Fig. 8 is Fig. 7 top view.
In figure：Shell body 1, shell gas outlet 11, shell air inlet 12, inner chamber body 2, enter air portion 21, mixing unit 22, go out
Gaseous mixture portion 23, lower narrow portion 231, transition part 232, outer width portion 233, inner chamber gas spraying perforation 24, interior air cavity connecting hole 25, day
Right gas pressure stabilizing cavity 26, inner chamber cage connection portion 27, upper bulge loop bar 271, middle concave ring groove 272, lower convex ring bar 273, air cavity 3, enter
Gas unit 4, inlet suction port 41, air inlet 42, air inlet unit 5, upper air inlet portion 51, lower inlet section 52, air cavity air inlet pipe 6, air cavity
Gas spraying perforation 61, upper arc sections 62, lower acute angle part 63, connecting plate 7, plate 71, anticreep stern construction 8.
Embodiment
The utility model is described in further detail below in conjunction with brief description of the drawings and embodiment.
Referring to Fig. 1 to Fig. 8, a kind of mixer for natural gas in use, including shell body 1, inner chamber body 2 and air cavity 3, the shell body
1 is internally provided with coaxial inner chamber body 2, and inner chamber body 2 is internally provided with air cavity 3, the air cavity 3, inner chamber body 2 with
The air admission unit 4 set on the side wall of shell body 1 is communicated, and inner chamber body 2 is communicated with the air inlet unit 5 set on the bottom of shell body 1；
The inner chamber body 2 is hollow waist type body structure, enters air portion 21, mixing including what is be connected successively from the bottom to top
Portion 22, go out gaseous mixture portion 23, it is described enter air portion 21 be to be opened up on up-narrow and down-wide frustum structure, the gusset of the mixing unit 22
Have inner chamber gas spraying perforation 24, an interior air cavity connecting hole 25, it is described go out gaseous mixture portion 23 be under narrow wide frustum structure；
It is described enter air portion 21 gusset on the nearly position of its bottom and its nearly bottom on the inwall of shell body 1 position it is close
Envelope coordinates, it is described go out the top in gaseous mixture portion 23 and the inwall of shell body 1 on nearly position sealing at the top of it coordinate, enter air portion
21st, mixing unit 22, the inwall for going out gaseous mixture portion 23 and shell body 1 surround a natural gas pressure stabilizing cavity 26 altogether, the natural gas voltage stabilizing
The inner side of chamber 26 is communicated with inner chamber gas spraying perforation 24, air cavity 3, and outside is communicated with air admission unit 4.
It is described go out gaseous mixture portion 23 include lower narrow portion 231, transition part 232 and outer width portion 233, the mixing unit 22 is passed through successively
Communicated behind lower narrow portion 231, transition part 232, outer width portion 233 with shell gas outlet 11, the transition part 232 upwardly extends for one kind
Extend out arc structure, the periphery in the outer width portion 233 coordinates with nearly position sealing at the top of it on the inwall of shell body 1.
The air admission unit 4 includes inlet suction port 41 and the air inlet 42 being opened on the side wall of shell body 1, the air inlet connecting
First 41 communicate after air inlet 42 with natural gas pressure stabilizing cavity 26, and air inlet 42 is less than the handing-over into air portion 21, mixing unit 22
Place is set.
It is described enter air portion 21 gusset on the inner chamber of concave structure is provided with the position that the inwall of shell body 1 is connected
Cage connection portion 27, the inner chamber cage connection portion 27 includes coaxial upper bulge loop bar 271, middle concave ring groove 272, lower convex ring bar 273,
The middle concave ring groove 272 is located between upper bulge loop bar 271, lower convex ring bar 273, and upper bulge loop bar 271, lower convex ring bar 273 is outer
End face coordinates with the inner wall sealing of shell body 1.
The air inlet unit 5 include coaxial upper air inlet portion 51, lower inlet section 52, it is described enter air portion 21 successively through enterprising
Communicated behind wind portion 51, lower inlet section 52 with shell air inlet 12, the upper air inlet portion 51 is cylindrical structure, the lower inlet section
52 be up-narrow and down-wide circular cone structure.
The air cavity 3 includes the air cavity air inlet pipe 6 of connecting plate 7 and at least two, and plate 71 and air cavity on connecting plate 7
Air inlet pipe 6, which is corresponded, to be set；
The plate 71 that the connecting plate 7 is located on the center position of mixing unit 22, connecting plate 7 enters with the air cavity corresponding to it
One end of tracheae 6 is connected, and the other end of the air cavity air inlet pipe 6 extends to natural gas pressure stabilizing cavity after passing interior air cavity connecting hole 25
26 inside, and offer on the side wall of air cavity air inlet pipe 6 multiple air cavity gas spraying perforations 61.
The quantity of the air cavity air inlet pipe 6 is four, and set along same even circumferential；The upper sheet space 71 of connecting plate 7
Quantity be four, and along same even circumferential set.
The cross section of the air cavity air inlet pipe 6 is droplet-shaped structure wide at the top and narrow at the bottom, including upper arc sections 62 and lower acute angle
Portion 63, the bottom surface of upper arc sections 62 is connected with the top surface of lower acute angle part 63, and inner chamber gas spraying perforation 24 is located at upper circular arc
Between the summit of portion 62, the bottom surface of upper arc sections 62.
Junction of the air cavity gas spraying perforation 61 along upper arc sections 62, lower acute angle part 63 is uniformly arranged.
Anticreep stern construction 8 is provided with the one end being located in the air cavity air inlet pipe 6 in natural gas pressure stabilizing cavity 26, the anticreep
Stern construction 8 is vertical with the side of upper arc sections 62 to be connected, and anticreep stern construction 8 is narrower than arc sections 62.
Principle of the present utility model is described as follows：
The utility model mainly by the structure design of blender, i.e. shell body, inner chamber body, the respective structure of air cavity and
Cooperate to improve the mixed characteristic of natural gas, air, improve the uniformity of its mixing.In use, natural gas is through air inlet connecting
Head enters in natural gas pressure stabilizing cavity, and a part of natural gas enters in mixing unit through the inner chamber gas spraying perforation in inner chamber body, separately
A part successively through the air cavity air inlet pipe on air cavity, air cavity gas spraying perforation enter mixing unit in, meanwhile, fresh air according to
It is secondary through shell air inlet, enter air portion into mixing unit, to be mixed with natural gas, form homogeneous mixture, finally pass through successively
Go out gaseous mixture portion, the outflow of shell gas outlet to use for engine, overall flow direction is supreme under.
Transition part：Its for it is a kind of upwardly extend extend out arc structure, this kind of structure can also be the diffuser after necking.Gas
When stream passes through the structure, Diffusion of gas stream, small part air-flow is flowed to after being rebuffed and changed, backflow formed here, produces backflow
Area, recirculating zone size changes with flow velocity, beneficial to the further mixing of natural gas, air.
Anticreep stern construction：It is interference connection between the inner of air cavity air inlet pipe and connecting plate, the outer end of air cavity air inlet pipe
Anticreep stern construction is vertically connected with end face, there is certain fit clearance between the anticreep stern construction and the inwall of shell body,
The span of the fit clearance is defined to be more than 0, and less than h/3, h is high for the wing of connecting plate（Referring to Fig. 7, Fig. 8）, the restriction can
Ensure, even if the connection of air cavity air inlet pipe and connecting plate is got loose, connecting plate, air cavity air inlet pipe are all without coming off, it is ensured that set
Standby normal operation.
The inner chamber cage connection portion of concave structure：It includes coaxial upper bulge loop bar, middle concave ring groove, lower convex ring bar, and this sets
Meter ensures, even if not using special seal, only relies on high-precision processing technology, also can ensure that contact surface is close when mounted
Laminating, realizes sealing.
Embodiment 1：
Referring to Fig. 1 to Fig. 8, a kind of mixer for natural gas in use, including shell body 1, inner chamber body 2 and air cavity 3, the shell body
1 is internally provided with coaxial inner chamber body 2, and inner chamber body 2 is internally provided with air cavity 3, the air cavity 3, inner chamber body 2 with
The air admission unit 4 set on the side wall of shell body 1 is communicated, and inner chamber body 2 is communicated with the air inlet unit 5 set on the bottom of shell body 1；
The inner chamber body 2 is hollow waist type body structure, enters air portion 21, mixing including what is be connected successively from the bottom to top
Portion 22, go out gaseous mixture portion 23, it is described enter air portion 21 be to be opened up on up-narrow and down-wide frustum structure, the gusset of the mixing unit 22
Have inner chamber gas spraying perforation 24, an interior air cavity connecting hole 25, it is described go out gaseous mixture portion 23 be under narrow wide frustum structure；It is described
The position sealing for entering the position of its nearly bottom and its nearly bottom on the inwall of shell body 1 on the gusset of air portion 21 coordinates, described
Go out on the top in gaseous mixture portion 23 and the inwall of shell body 1 nearly position sealing at the top of it to coordinate, enter air portion 21, mixing unit
22nd, go out gaseous mixture portion 23 and the inwall of shell body 1 surrounds a natural gas pressure stabilizing cavity 26, the inner side of the natural gas pressure stabilizing cavity 26 altogether
Communicated with inner chamber gas spraying perforation 24, air cavity 3, outside is communicated with air admission unit 4.
Embodiment 2：
Substance be the same as Example 1, difference is：
It is described go out gaseous mixture portion 23 include lower narrow portion 231, transition part 232 and outer width portion 233, the mixing unit 22 is passed through successively
Communicated behind lower narrow portion 231, transition part 232, outer width portion 233 with shell gas outlet 11, the transition part 232 upwardly extends for one kind
Extend out arc structure, the periphery in the outer width portion 233 coordinates with nearly position sealing at the top of it on the inwall of shell body 1.
Embodiment 3：
Substance be the same as Example 1, difference is：
The air admission unit 4 includes inlet suction port 41 and the air inlet 42 being opened on the side wall of shell body 1, the air inlet connecting
First 41 communicate after air inlet 42 with natural gas pressure stabilizing cavity 26, and air inlet 42 is less than the handing-over into air portion 21, mixing unit 22
Place is set.The air inlet unit 5 include coaxial upper air inlet portion 51, lower inlet section 52, it is described enter air portion 21 successively through enterprising
Communicated behind wind portion 51, lower inlet section 52 with shell air inlet 12, the upper air inlet portion 51 is cylindrical structure, the lower inlet section
52 be up-narrow and down-wide circular cone structure.
Embodiment 4：
Substance be the same as Example 1, difference is：
It is described enter air portion 21 gusset on the inner chamber of concave structure is provided with the position that the inwall of shell body 1 is connected
Cage connection portion 27, the inner chamber cage connection portion 27 includes coaxial upper bulge loop bar 271, middle concave ring groove 272, lower convex ring bar 273,
The middle concave ring groove 272 is located between upper bulge loop bar 271, lower convex ring bar 273, and upper bulge loop bar 271, lower convex ring bar 273 is outer
End face coordinates with the inner wall sealing of shell body 1.
Embodiment 5：
Substance be the same as Example 1, difference is：
The air cavity 3 includes the air cavity air inlet pipe 6 of connecting plate 7 and at least two, and plate 71 and air cavity on connecting plate 7
Air inlet pipe 6, which is corresponded, to be set；The connecting plate 7 is located at plate 71 and its institute on the center position of mixing unit 22, connecting plate 7
One end of corresponding air cavity air inlet pipe 6 is connected, and the other end of the air cavity air inlet pipe 6 is extended to after passing interior air cavity connecting hole 25
The inside of natural gas pressure stabilizing cavity 26, and offer on the side wall of air cavity air inlet pipe 6 multiple air cavity gas spraying perforations 61.Just count
For amount, preferably：The quantity of the air cavity air inlet pipe 6 be four, and along same even circumferential set, the upper sheet space 71 of connecting plate 7
Quantity be four, and along same even circumferential set.
Embodiment 6：
Substance be the same as Example 5, difference is：
The cross section of the air cavity air inlet pipe 6 is droplet-shaped structure wide at the top and narrow at the bottom, including upper arc sections 62 and lower acute angle
Portion 63, the bottom surface of upper arc sections 62 is connected with the top surface of lower acute angle part 63, and inner chamber gas spraying perforation 24 is located at upper circular arc
Between the summit of portion 62, the bottom surface of upper arc sections 62.Friendship of the air cavity gas spraying perforation 61 along upper arc sections 62, lower acute angle part 63
The place of connecing is uniformly arranged.Anticreep stern construction 8 is provided with the one end being located in the air cavity air inlet pipe 6 in natural gas pressure stabilizing cavity 26,
The anticreep stern construction 8 is vertical with the side of upper arc sections 62 to be connected, and anticreep stern construction 8 is narrower than arc sections 62.
Claims (10)
1. a kind of mixer for natural gas in use, including shell body（1）, inner chamber body（2）With air cavity（3）, the shell body（1）Inside
It is provided with coaxial inner chamber body（2）, inner chamber body（2）Be internally provided with air cavity（3）, the air cavity（3）, inner chamber body（2）
And shell body（1）The air admission unit set on the wall of side（4）Communicate, and inner chamber body（2）With shell body（1）What is set on bottom enters
Wind unit（5）Communicate, it is characterised in that：
The inner chamber body（2）For hollow waist type body structure, enter air portion including what is be connected successively from the bottom to top（21）, mixing
Portion（22）, go out gaseous mixture portion（23）, it is described enter air portion（21）For up-narrow and down-wide frustum structure, the mixing unit（22）Side
Place and offer inner chamber gas spraying perforation（24）, interior air cavity connecting hole（25）, it is described go out gaseous mixture portion（23）The narrow upper width under
Frustum structure；
It is described enter air portion（21）Gusset on its nearly bottom position and shell body（1）Inwall on its nearly bottom position it is close
Envelope coordinate, it is described go out gaseous mixture portion（23）Top and shell body（1）Inwall on nearly position sealing at the top of it coordinate, enter sky
Gas portion（21）, mixing unit（22）, go out gaseous mixture portion（23）With shell body（1）Inwall surround a natural gas pressure stabilizing cavity altogether
（26）, the natural gas pressure stabilizing cavity（26）Inner side and inner chamber gas spraying perforation（24）, air cavity（3）Communicate, outside and air inlet
Unit（4）Communicate.
2. a kind of mixer for natural gas in use according to claim 1, it is characterised in that：It is described go out gaseous mixture portion（23）Including under
Narrow portion（231）, transition part（232）With outer width portion（233）, the mixing unit（22）Successively through lower narrow portion（231）, transition part
（232）, outer width portion（233）Afterwards with shell gas outlet（11）Communicate, the transition part（232）For it is a kind of upwardly extend extend out circle
Arc structure, the outer width portion（233）Periphery and shell body（1）Inwall on nearly position sealing at the top of it coordinate.
3. a kind of mixer for natural gas in use according to claim 1 or 2, it is characterised in that：The air admission unit（4）Including entering
Gas joint（41）And it is opened in shell body（1）Air inlet on the wall of side（42）, the inlet suction port（41）Through air inlet（42）Afterwards
With natural gas pressure stabilizing cavity（26）Communicate, and air inlet（42）It is less than into air portion（21）, mixing unit（22）Junction set.
4. a kind of mixer for natural gas in use according to claim 1 or 2, it is characterised in that：It is described enter air portion（21）Side
Place and shell body（1）The position that connects of inwall be provided with the inner chamber cage connection portion of concave structure（27）, outside the inner chamber
Shell connecting portion（27）Including coaxial upper bulge loop bar（271）, middle concave ring groove（272）, lower convex ring bar（273）, the middle concave ring groove
（272）Positioned at upper bulge loop bar（271）, lower convex ring bar（273）Between, and upper bulge loop bar（271）, lower convex ring bar（273）Outer end
Face is and shell body（1）Inner wall sealing coordinate.
5. a kind of mixer for natural gas in use according to claim 1 or 2, it is characterised in that：The air inlet unit（5）Including same
The upper air inlet portion of axle（51）, lower inlet section（52）, it is described enter air portion（21）Successively through upper air inlet portion（51）, lower inlet section（52）
Afterwards with shell air inlet（12）Communicate, the upper air inlet portion（51）For cylindrical structure, the lower inlet section（52）For it is upper it is narrow under
Wide circular cone structure.
6. a kind of mixer for natural gas in use according to claim 1 or 2, it is characterised in that：
The air cavity（3）Including connecting plate（7）With at least two air cavity air inlet pipe（6）, and connecting plate（7）On plate（71）
With air cavity air inlet pipe（6）Correspond and set；
The connecting plate（7）Positioned at mixing unit（22）Center position, connecting plate（7）On plate（71）With the gas corresponding to it
Chamber air inlet pipe（6）One end be connected, the air cavity air inlet pipe（6）The other end pass interior air cavity connecting hole（25）After extend to day
Right gas pressure stabilizing cavity（26）Inside, and in air cavity air inlet pipe（6）Side wall on offer multiple air cavity gas spraying perforations（61）.
7. a kind of mixer for natural gas in use according to claim 6, it is characterised in that：The air cavity air inlet pipe（6）Quantity
For four, and set along same even circumferential；The connecting plate（7）Upper sheet space（71）Quantity be four, and along same circumference
It is uniformly arranged.
8. a kind of mixer for natural gas in use according to claim 6, it is characterised in that：The air cavity air inlet pipe（6）It is transversal
Face is droplet-shaped structure wide at the top and narrow at the bottom, including upper arc sections（62）With lower acute angle part（63）, upper arc sections（62）Bottom surface with
Lower acute angle part（63）Top surface be connected, and inner chamber gas spraying perforation（24）Positioned at upper arc sections（62）Summit, upper arc sections
（62）Between bottom surface.
9. a kind of mixer for natural gas in use according to claim 8, it is characterised in that：The air cavity gas spraying perforation（61）
Along upper arc sections（62）, lower acute angle part（63）Junction be uniformly arranged.
10. a kind of mixer for natural gas in use according to claim 8, it is characterised in that：The air cavity air inlet pipe（6）On be located at
Natural gas pressure stabilizing cavity（26）Anticreep stern construction is provided with interior one end（8）, the anticreep stern construction（8）With upper arc sections（62）'s
The vertical connection in side, and anticreep stern construction（8）It is narrower than arc sections（62）.
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| CN201621300303.6U CN206360806U (en) | 2016-11-30 | 2016-11-30 | A kind of mixer for natural gas in use |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438115A (en) * | 2016-11-30 | 2017-02-22 | 东风商用车有限公司 | Natural gas mixer |
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2016
- 2016-11-30 CN CN201621300303.6U patent/CN206360806U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438115A (en) * | 2016-11-30 | 2017-02-22 | 东风商用车有限公司 | Natural gas mixer |
| CN106438115B (en) * | 2016-11-30 | 2019-04-05 | 东风商用车有限公司 | A kind of mixer for natural gas in use |
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