CN205908390U - Venturi type gas blender - Google Patents
Venturi type gas blender Download PDFInfo
- Publication number
- CN205908390U CN205908390U CN201620742646.1U CN201620742646U CN205908390U CN 205908390 U CN205908390 U CN 205908390U CN 201620742646 U CN201620742646 U CN 201620742646U CN 205908390 U CN205908390 U CN 205908390U
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- CN
- China
- Prior art keywords
- air inlet
- nozzle
- fuel gas
- cavity
- venturi type
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
The utility model provides a venturi type gas blender includes the casing and establishes nozzle in the casing, two ends of casing set up air inlet and gas mixture gas outlet separately, the nozzle includes middle hollow cavity, and the cavity front end is equipped with mixed gas outlet for being equipped with air admission mouth, rear end, the air of the nozzle air inlet intercommunication on entry and the casing that admits air, gas mixture gas outlet intercommunication on mixed gas outlet and the casing on the nozzle, be equipped with annular air intake chamber in the cavity wall, cavity outer wall and nozzle air inlet intercommunication are passed through with the inside intercommunication of cavity, annular air intake chamber to the gas jet export that annular air intake chamber passes through on the cavity inner wall. The utility model has the advantages of, mixing uniformity is good.
Description
Technical field
This utility model is related to gas engine field, particularly to a kind of structure simple venturi type combustion gas mixing
Device.
Background technology
At present, announced gas engine mainly adopts premixed combustion mode, and that is, natural gas and air are in engine air
Mix outside cylinder, form fuel gas, finally enter back into cylinder, carry out work by combustion.Since being premixed combustion mode, that
Will there are mixer apparatus.Existing blender mainly has two kinds: one kind is mechanical mixer, and another kind is that proportion expression is mixed
Clutch.Mechanical mixer carries out combustion gas mixing using the structure of grommet or cross, and this mixer structure is complicated, manufacturing cost
Height, mixing uniformity is bad.Valve element is arranged on diaphragm proportional mixer, the motion with movable valve plug for the motion of diaphragm, can
Combustion gas body is mixed at the valve port of diaphragm with air.Because its structure is simple, high volume applications two, three line city at home
Market for refitting.But the mixed effect of fuel gas is bad, particularly in accelerator, the concentration of fuel gas controls not
Stable, directly resulting in engine acceleration can poor, and engine piston melts top, air inlet pipe bursts etc. for serious just directly resulting in seriously
Mechanical breakdown.
Utility model content
The technical problem that this utility model solves is to provide a kind of structure simple, the good venturi type combustion gas of mixing uniformity
Blender.
For reaching above-mentioned purpose, this utility model provides a kind of venturi type fuel gas mixer and includes housing and set
Nozzle in described housing；
Described housing two end sets up air inlet and gaseous mixture gas outlet separately, and described nozzle includes the cavity of intermediate hollow,
Cavity front end be provided with air inlet port, rear end is provided with mixed gas outlet, the air inlet entrance on housing and nozzle overhead
Gas air inlet connects, and the mixed gas outlet on housing is connected with the gaseous mixture gas outlet on nozzle；
It is provided with annular inlet chamber room, the fuel gas injection outlet on cavity inner wall is passed through in annular inlet chamber room in described cavity wall
Connect with inside cavity, annular inlet chamber room is connected with nozzle air inlet by chamber outer wall.
Further, venturi type fuel gas mixer also includes air inlet cover plate, and described air inlet cover plate is provided with gas inlet
Mouthful, air inlet cover plate is fixed on nozzle, and gas inlet is connected with nozzle air inlet.
Further, cavity inner wall line is curve, curve both ends high, middle low, is provided with gas injection in middle lower and projects
Mouthful.
Further, housing is additionally provided with pressure feedback hole, described pressure feedback hole is provided with pressure inductor, feeling of stress
Device is answered to connect with controller.
Further, it is additionally provided with fumarole in described nozzle wall, fumarole is by air inlet with gaseous mixture gas outlet even
Logical.
Further, described gaseous mixture gas outlet arranges adpting flange.
Further, multiple described fuel gas injections outlets in cavity circumferentially shape uniformly arrange, and/or, described combustion gas
Jet exit (32) centrage is mutually overlapping with the centrage of cavity straight.
Further, mixed gas outlet edge is provided with strain-type pressure inductor, strain-type pressure inductor and control
Device connects.
Further, described housing upper end is provided with placement opening, and enclosure interior is provided with fixing annular groove, and described nozzle passes through to put
Put in the fixing annular groove that opening is put in housing.
It is also possible that described nozzle is contacted with described housing is externally provided with elastic plate.
The utility model has the advantage of, due to increased nozzle in valve body so that natural gas is by multiple on nozzle
The mode that the fuel gas injection of circle distribution is exported and is at an angle of with air inlet direction is entered hybrid chamber and is mixed with air.Due to sky
Gas enters nozzle from air inlet, and when nozzle, air velocity is the fastest, density is maximum, and air draught direction and fuel gas flow are handed over
Fork mixed flow, herein, the combustion gas of high velocity jet and high-speed air flow are sufficiently mixed by venturi type nozzle, reach splendid mixing
Close effect.
Brief description
In order to more clearly describe the related art scheme involved by this utility model, the accompanying drawing being related to below gives
Simple declaration it should be apparent that, drawings in the following description be only some embodiments of the present utility model, general for this area
For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the main structure diagram of venturi type fuel gas mixer of the present utility model.
Fig. 2 is the cross section structure diagram in the e-e direction of venturi type fuel gas mixer of the present utility model.
Fig. 3 is the preferred structure schematic diagram of venturi type fuel gas mixer of the present utility model.
Fig. 4 is shell structure schematic diagram.
Fig. 5 is venturi type fuel gas mixer control schematic diagram.
Fig. 6 venturi type of the present utility model fuel gas mixer operation principle schematic diagram.
As figure, air inlet cover plate 1, housing 2, nozzle 3, strain-type pressure inductor 4, controller 5, pressure inductor 6, placement
Opening 7, fixing annular groove 8, elastic plate 9, air inlet 21, gaseous mixture gas outlet 22, pressure feedback hole 23, adpting flange 221,
Annular inlet chamber room 31, fuel gas injection outlet 32, air inlet port 33, mixed gas outlet 34, nozzle air inlet 35, fumarole
36.
Specific embodiment
Further understand to of the present utility model for the ease of those skilled in the art, and clearly recognize the application institute
The technical scheme recorded, completely, fully discloses correlation technique content of the present utility model, new to this practicality below in conjunction with the accompanying drawings
The specific embodiment of type be described in detail it should be apparent that, described specific embodiment is only to enumerate mode
Give a part of embodiment of the present utility model, be used to help understand this utility model and its core concept.
Shown in Fig. 1, Fig. 2, venturi type fuel gas mixer includes housing 2 and is located at nozzle 3 in described housing, preferably
, venturi type fuel gas mixer also includes air inlet cover plate 1, and air inlet cover plate 1 is provided with gas inlet 11, and air inlet cover plate 1 is solid
It is scheduled on nozzle 3, gas inlet 11 is connected with nozzle air inlet 35, the air inlet 11 of air inlet cover plate 1 is located at venturi type and fires
Gas blender top, air inlet 11 is directly accessed for combustion gas interface tube for hickey, the air inlet of air inlet top cover 11 and spray
Seal for sealing ring between mouth air inlet 35 and ensure air-tightness；
Housing 2 two end sets up air inlet 21 and gaseous mixture gas outlet 22 separately it is preferred that arranging on gaseous mixture gas outlet 22
Adpting flange 221, adpting flange 221 circumferentially opens up multiple bolts hole, by bolt with mixed gas gas outlet 22 pipeline even
Connect, have sealing ring to ensure sealing between adpting flange and this pipeline, nozzle 3 includes the cavity of intermediate hollow, and cavity front end is
It is provided with air inlet port 33, rear end is provided with mixed gas outlet 34, air inlet entrance 33 is connected with air inlet 21, mixing
Gas outlet 34 is connected with gaseous mixture gas outlet 22；
It is provided with annular inlet chamber room 31, the fuel gas injection outlet on cavity inner wall is passed through in annular inlet chamber room 31 in cavity wall
32 are connected with inside cavity, and the nozzle air inlet 35 that annular inlet chamber room 31 is passed through on chamber outer wall connects, described fuel gas injection
Export 32 centrages mutually overlapping with the centrage of cavity straight.Preferably, cavity inner wall line is curve, curve both ends high, middle low,
Middle low be externally provided with fuel gas injection outlet 32 it is preferred that multiple described fuel gas injection outlet 32 in cavity circumferentially shape uniform
Arrangement, cavity inner wall curve lowest part is the narrowest place of cavity, after air is from air inlet 21 entrance housing 2, through chamber
Body the narrowest place Airflow moves that fastest, density is maximum, and combustion gas simultaneously is projected by the gas injection of cavity upper curve lowest part
Mouth 32 sprays and (combustion gas being given in Figure of description in present specification is that vertical ejection is fired in formation combustion gas group of the narrowest place
The schematic diagram of gas, it is true that it can be arbitrarily angled ejection, the direction of corresponding fuel gas injection outlet 32 can be random angle
Degree, in the accompanying drawings, for the ease of performance, be given is vertical angle).Combustion gas is rolled into a ball blowout at the narrowest place by air, simultaneously
In mixed gas outlet 34 and combustion gas mixing:
As Fig. 3 it is preferred that being additionally provided with fumarole 36 in nozzle 3 wall, air inlet 21 and gaseous mixture are gone out by fumarole 36
QI KOU 22 connects.Air directly can pass through nozzle 3 so that air current flow performance and mixed effect reach by fumarole 36
Good.
As in Fig. 2,5, it is preferred that being additionally provided with pressure feedback hole 23 on housing 2, described pressure feedback hole 23 is provided with pressure
Induction apparatuss 6, pressure inductor 6 is connected with controller 5；Mixed gas outlet 34 edge is provided with strain-type pressure inductor 4, strain
Formula pressure inductor 4 is connected with controller 5.During work, controller 5 passes through to compare pressure inductor 6, strain-type pressure inductor
4 pressure data, can be immediately understood whether mixing homogeneously of air and combustion gas in nozzle 3, such as mixes uneven, then feeling of stress
Device 6, strain-type pressure inductor 4 phase difference is answered to exceed reasonable interval value；As mix homogeneously, then pressure inductor 6, strain-type pressure
, in reasonable interval value, pressure sensitive phase difference reasonable interval value both it may be according to true after test for power induction apparatuss 4 phase difference
Fixed.
In Fig. 4, housing 2 upper end is provided with placement opening 7, is provided with fixing annular groove 8 inside housing 2, and described nozzle 3 passes through to put
Put in the fixing annular groove 8 that opening 7 is put in housing 2, described nozzle 3 is contacted with described housing 2 and is externally provided with elastic plate 9.
Can be facilitated using said structure and nozzle 3 be installed and overhauls, by elastic plate 9 from deforming, spray can be made
Mouth, in the internal minute movement of housing 2, can mitigate the impact to nozzle 3 during housing 2 air inlet, improve the efficiency of air and combustion gas.
In Fig. 6, air enters housing 2 from air inlet 21, enters back into nozzle 3 air inlet port 33, flows in nozzle 3
In road, flowing velocity increases, and at nozzle throat minimum diameter (the narrowest place of cavity), sprays with from the gas injection hole 33 of nozzle 3
The combustion gas collisional mixing shooting out, due to spray-hole be circle distribution in inwall, be fully contacted with the air in direction, then by spraying
Mouth mixed gas outlet 34 sprays, and during ejection, air velocity reduces so that mixed gas are sufficiently mixed, and have has simultaneously
Preferably draught effect.
Especially declare: an only specific embodiment of the present utility model disclosed above, but this utility model is not
It is confined to this, the changes that any person skilled in the art can think of should fall into this utility model protection domain.
Above in association with embodiment, this utility model is described in detail, applies specific case in presents to this reality
It is set forth with new principle and embodiment, the explanation of above example is only intended to help understanding of the present utility model
Method and its core concept；Simultaneously for one of ordinary skill in the art, according to thought of the present utility model, specifically real
Apply and all will change in mode and range of application, in sum, this specification content should not be construed as to this utility model
Restriction.
Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work
The all other embodiment being obtained, and/or in the case of without departing substantially from this utility model spirit and its essence, even if to each
Partial annexation or structure are changed, and make various corresponding changes according to this utility model and deform, but
These corresponding changes and deformation all should belong to the scope that this utility model is protected.
Claims (10)
1. a kind of venturi type fuel gas mixer it is characterised in that: described blender includes housing (2) and is located at described housing
Interior nozzle (3)；
Described housing (2) two end sets up air inlet (21) and gaseous mixture gas outlet (22) separately, and described nozzle (3) is included in centre
Empty cavity, cavity front end is for being provided with air inlet port (33), rear end is provided with mixed gas outlet (34), air inlet entrance
(33) connect with air inlet (21), mixed gas outlet (34) is connected with gaseous mixture gas outlet (22)；
It is provided with annular inlet chamber room (31), annular inlet chamber room (31) pass through the fuel gas injection on cavity inner wall in described cavity wall
Outlet (32) is connected with inside cavity, and annular inlet chamber room (31) are connected with nozzle air inlet (35) by chamber outer wall.
2. venturi type fuel gas mixer as claimed in claim 1 it is characterised in that: described blender also includes air inlet cover plate
(1),
Described air inlet cover plate (1) is provided with gas inlet (11), and air inlet cover plate (1) is fixed on nozzle (3), gas inlet
(11) connect with nozzle air inlet (35).
3. venturi type fuel gas mixer as claimed in claim 1 it is characterised in that: described cavity inner wall line is curve, bent
Line both ends high, middle low, is provided with fuel gas injection outlet (32) in middle lower.
4. venturi type fuel gas mixer as claimed in claim 1 it is characterised in that: be additionally provided with pressure on described housing 2 anti-
Feed-through (23), described pressure feedback hole (23) is provided with pressure inductor (6), and pressure inductor (6) is connected with controller (5).
5. venturi type fuel gas mixer as claimed in claim 1 it is characterised in that: be additionally provided with spray in described nozzle (3) wall
Pore (36), air inlet (21) is connected by fumarole (36) with gaseous mixture gas outlet (22).
6. venturi type fuel gas mixer as claimed in claim 1 it is characterised in that: set on described gaseous mixture gas outlet (22)
Put adpting flange (221).
7. venturi type fuel gas mixer as claimed in claim 1 it is characterised in that: multiple described fuel gas injections export (32)
In cavity, circumferentially shape is uniformly arranged, and/or, described fuel gas injection outlet (32) centrage is mutually overlapping with the centrage of cavity straight.
8. venturi type fuel gas mixer as claimed in claim 1 it is characterised in that: described mixed gas outlet (34) edge
It is provided with strain-type pressure inductor (4), strain-type pressure inductor (4) is connected with controller (5).
9. venturi type fuel gas mixer as claimed in claim 1 it is characterised in that: described housing (2) upper end is provided with placement
Opening (7), is provided with fixing annular groove (8) inside housing (2), and described nozzle (3) is passed through placement opening (7) and put in housing (2)
In fixing annular groove (8).
10. venturi type fuel gas mixer as claimed in claim 9 it is characterised in that: described nozzle (3) and described housing
(2) contact and be externally provided with elastic plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620742646.1U CN205908390U (en) | 2016-07-15 | 2016-07-15 | Venturi type gas blender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620742646.1U CN205908390U (en) | 2016-07-15 | 2016-07-15 | Venturi type gas blender |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205908390U true CN205908390U (en) | 2017-01-25 |
Family
ID=57805418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620742646.1U Active CN205908390U (en) | 2016-07-15 | 2016-07-15 | Venturi type gas blender |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205908390U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838786A (en) * | 2017-11-28 | 2019-06-04 | 芜湖美的厨卫电器制造有限公司 | Gas mixing unit and gas heater |
| CN110762531A (en) * | 2018-07-25 | 2020-02-07 | 德州威诺冷暖设备有限公司 | Gas air mixer |
| CN111058970A (en) * | 2020-03-18 | 2020-04-24 | 山东赛马力发电设备有限公司 | Venturi mixer of gas generator set |
-
2016
- 2016-07-15 CN CN201620742646.1U patent/CN205908390U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838786A (en) * | 2017-11-28 | 2019-06-04 | 芜湖美的厨卫电器制造有限公司 | Gas mixing unit and gas heater |
| CN109838786B (en) * | 2017-11-28 | 2024-03-29 | 芜湖美的厨卫电器制造有限公司 | Gas mixing device and gas water heater |
| CN110762531A (en) * | 2018-07-25 | 2020-02-07 | 德州威诺冷暖设备有限公司 | Gas air mixer |
| CN111058970A (en) * | 2020-03-18 | 2020-04-24 | 山东赛马力发电设备有限公司 | Venturi mixer of gas generator set |
| CN111058970B (en) * | 2020-03-18 | 2020-06-16 | 山东赛马力发电设备有限公司 | Venturi mixer of gas generator set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210622 Address after: 611743 No.777, wangcong East Road, small and micro enterprise innovation park, north area of Chengdu modern industrial port, Pidu District, Chengdu City, Sichuan Province Patentee after: Chengdu Jinguan Electronic System Co.,Ltd. Address before: 201500 room 1060, building 5, No. 3688, Wei Road, Caojing Town, Jinshan District, Shanghai Patentee before: SHANGHAI JINGUAN ELECTRICAL TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |