CN207905907U - Tailpipe with waste gas ejecting ash-clearing structure - Google Patents
Tailpipe with waste gas ejecting ash-clearing structure Download PDFInfo
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- CN207905907U CN207905907U CN201820023638.0U CN201820023638U CN207905907U CN 207905907 U CN207905907 U CN 207905907U CN 201820023638 U CN201820023638 U CN 201820023638U CN 207905907 U CN207905907 U CN 207905907U
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- trunnion
- waste gas
- tailpipe
- gas ejecting
- straight pipe
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Abstract
The utility model discloses a kind of tailpipe with waste gas ejecting ash-clearing structure, including exhaust main and flange, the exhaust main includes straight pipe and bend loss, and trunnion is equipped in the straight pipe, and straight pipe is equipped with ejector pipe；The inlet end of the trunnion is relatively narrow, and outlet side diameter is gradually increased to suitable with exhaust main；One end that the ejector pipe is located inside straight pipe is communicated with trunnion.It increases waste gas ejecting dust outlet geometry on the basis of meeting exhaust back pressure；It substantially increases and takes out dirt negative pressure, improve dust discharge effect；Increase waste gas ejecting structure in tailpipe, the delivery temperature of tailpipe is reduced by the cold air in injection air cleaner, reduces risk；Waste gas ejecting structure is directly mounted in tailpipe, in the case where not increasing installation space so that whole system is compacter；Waste gas ejecting mechanism is arranged in simple tailpipe, failure risk and replacement cost are greatly reduced.
Description
Technical field
The utility model belongs to diesel engine vent gas post-processing technology field, and in particular to a kind of band waste gas ejecting ash-clearing structure
Tailpipe.
Background technology
When automobile works in the environment of more dirt, the dust in air cleaner can cause filter core stifled as being discharged not in time
Plug can cause for unsaturated vapor when serious, the problems such as causing to stop working when big load.Existing tailpipe does not have waste gas ejecting work
With；There is excessive discharge temperature, especially agricultural machinery in portion discharge tail pipe, often due to tailpipe outlet temperature mistake
Height leads to the agricultural crop straw that ignites.Existing waste gas ejecting structure is limited by space, and length of throat is also restrained, and when work deposits
In negative pressure deficiency, the defects of dirt effect is bad is taken out；Conventional waste gas ejecting dust-exbaust system is generally separately provided or is directly arranged
In clarifier, the lengthy and tedious complexity of waste gas ejecting dust-exbaust system total being separately provided, and require larger cloth and empty
Between.Some waste gas ejecting structures can be set up directly in clarifier, this will make clarifier structure more complicated, and clarifier
Price is relatively expensive, and vibration is big in use, and temperature is high, therefore is easy to happen various failures, and the failure of clarifier will be led
Waste gas ejecting device is caused to replace together, replacement cost is high.
Invention content
In view of the above-mentioned problems, the utility model provides a kind of tailpipe with waste gas ejecting ash-clearing structure, can play
The function of exhaust gas is discharged, and filter element can be cleaned, ensures that engine gas supply is abundant, extends the service life of filter and keeps sending out
The dynamic property of motivation.
Technical solution according to the present utility model, the tailpipe with waste gas ejecting ash-clearing structure, including exhaust are total
Pipe and flange, the exhaust main include straight pipe and bend loss, trunnion are equipped in the straight pipe, straight pipe is equipped with injection
Pipe；The inlet end of the trunnion is relatively narrow, and outlet side diameter is gradually increased to suitable with exhaust main；The ejector pipe is located at straight tube
One end of intersegmental part is communicated with trunnion.
Further, the inlet end of the trunnion is equipped with flare openings, and the ejector pipe is located at one inside straight pipe
Trunnion is inserted at end.
Further, the ejector pipe is right-angle elbow pipe, is located at one end inside straight pipe and trunnion minimum diameter
Alignment.
Further, the ejector pipe is located at one end outside straight pipe equipped with connecting flange, and the connecting flange is used for
The connecting tube of filter is led in connection.
Further, the flange is T-flange, and flange is equipped with jointing clip.
Further, the half of a diameter of exhaust main in trunnion most thin place.
Further, the exhaust main and flange welding are integrated.
Further, throttling trunnion is equipped in the straight pipe；The inlet end diameter and exhaust main of the throttling trunnion
Quite, it is tapered into close to diameter at trunnion, and is inserted into trunnion；The inlet end of the trunnion is equipped with flare openings, horn-like
The edge of opening is in contact with straight pipe inner wall；The ejector pipe is straight tube, is located at one end inside straight pipe and throttling larynx
Pipe diameter smaller part is opposite.
Compared with prior art, the utility model has the advantage of：Manufacturing process is simple, on the basis for meeting exhaust back pressure
On increase waste gas ejecting dust outlet geometry, disclosure satisfy that the use condition of different backpressure requirements；It is substantially unrestricted to be installed on length
In the tailpipe of system, longer trunnion can be used, substantially increases and takes out dirt negative pressure, improve dust discharge effect；In exhaust tail
Increase waste gas ejecting structure in pipe, the delivery temperature of tailpipe is reduced by the cold air in injection air cleaner, drops
Low risk；It is simple and light, waste gas ejecting structure is directly mounted in tailpipe, in the feelings for not increasing installation space
So that whole system is compacter under condition；Waste gas ejecting mechanism is arranged in simple tailpipe, failure is greatly reduced
Risk and replacement cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment one.
Fig. 2 is the stereochemical structure sectional view of the utility model embodiment one.
Fig. 3 is trunnion and injection tube structure schematic diagram in the utility model embodiment one.
Fig. 4 is the structural schematic diagram of the utility model embodiment two.
Fig. 5 is the dimensional structure diagram of the utility model embodiment two.
Fig. 6 is trunnion and injection tube structure schematic diagram in the utility model embodiment two.
Reference sign：1- exhaust mains, 11- straight pipes, 12- bend loss, 2- trunnions, 3- ejector pipes, 4- connection methods
Orchid, 5- flanges, 6- clips, 7- throttling trunnion.
Specific implementation mode
With reference to specific embodiments and the drawings, the utility model is described in further detail.
As shown in the figure：Tailpipe with waste gas ejecting ash-clearing structure, including exhaust main 1 and flange 5, exhaust main 1
Including straight pipe 11 and bend loss 12, flange 5 is T-flange, and flange 5 is equipped with jointing clip 6, and jointing clip 6 is for connecting
The exhaust pipe of engine.Clamp connection is set and not only improves the installation and removal of tailpipe, while being also convenient in tailpipe quilt
It is cleared up when flue dust, dust, dust or other foreign matters from being blocked.Trunnion 2 is equipped in straight pipe 11, straight pipe 11, which is equipped with, to be drawn
Penetrate pipe 3；The inlet end of trunnion 2 is relatively narrow, and outlet side diameter is gradually increased to exhaust main 1 quite, and 2 most thin place diameter of trunnion can
Think the half of exhaust main 1, flow velocity increased dramatically when air-flow enters trunnion 2, and dynamic pressure also increased dramatically therewith, and static pressure is anxious therewith
It falls sharply low to generate negative pressure.Ejector pipe 3 can be directly welded on exhaust main 1, be located at one end inside straight pipe 11
It is communicated with trunnion 2.
Embodiment one
As shown in Figs. 1-3：The inlet end of trunnion 2 is equipped with flare openings, and ejector pipe 3 is located at one end inside straight pipe 11
It is inserted into trunnion 2.Ejector pipe 3 is right-angle elbow pipe, is located at one end outside straight pipe 11 and is equipped with connecting flange 4, connecting flange 4 is used
Lead to the connecting tube of filter in connection.Ejector pipe 3, which is located at one end inside straight pipe 11 and 2 minimum diameter of trunnion, to be aligned,
To obtain maximum negative pressure, when negative pressure generates and gradually increases, ejector pipe 3 can be by the accumulation inside filter
Flue dust, dust or dust extraction, and be discharged by trunnion 2 and exhaust main 1, to play cleaning filter, prevent filtering
Device blocks and reduces the effect of air inlet back pressure.Secondly, waste gas ejecting structure injection cold air from air cleaner enters exhaust
After in tail pipe, the delivery temperature of tailpipe outlet is will further decrease, for the agricultural vehicle to work in dirty environment for a long time,
The reduction of exhaust port temperatures is vented the risk for the agricultural crop straw that ignites by greatly reducing.
Embodiment two
As Figure 4-Figure 6：It throttles caused by ejector pipe 3 is inserted into trunnion 2 and exhaust back pressure to reduce in embodiment one
The problem of increase, is equipped with throttling trunnion 7, the inlet end diameter and exhaust main of the trunnion 7 that throttles in 1 straight pipe 11 of exhaust main
1 quite, is tapered into close to diameter at trunnion 2, and be inserted into trunnion 2.The inlet end of trunnion 2 is equipped with flare openings, horn-like
The edge of opening is in contact with 11 inner wall of straight pipe.Ejector pipe 3 is straight tube, is located at one end inside straight pipe 11 and throttling larynx
7 diameter smaller part of pipe is opposite.This improved structure greatly reduces the exhaust back pressure of structure while forming larger negative pressure.
The utility model is drawn portion by installing waste gas ejecting device additional inside tailpipe from tailpipe
Enter engine filter, the function and filter element of discharge exhaust gas can be played, ensures that engine gas supply is abundant,
Extend the service life of filter and keeps the dynamic property of engine；Negative pressure is formed by the change of high-speed flow kinetic energy, to injection
Cold air in air cleaner and dust, the entrance of cold air reduce the temperature of tailpipe outlet exhaust, reach take out dirt,
Cooling and other effects prevents dust from blocking air cleaner and prevents excessive discharge temperature from igniting the mesh of extraneous combustibles to realize
's；Waste gas ejecting device is mounted in tailpipe, and occupancy is small, simple in structure, economic and practical, can be conveniently installed at
Engine exhaust exit.
Claims (8)
1. the tailpipe with waste gas ejecting ash-clearing structure, including exhaust main（1）And flange（5）, the exhaust main（1）Packet
Include straight pipe（11）And bend loss（12）, which is characterized in that the straight pipe（11）It is interior to be equipped with trunnion（2）, straight pipe（11）On
Equipped with ejector pipe（3）；The trunnion（2）Inlet end it is relatively narrow, outlet side diameter is gradually increased to and exhaust main（1）Quite；
The ejector pipe（3）Positioned at straight pipe（11）Internal one end and trunnion（2）It communicates.
2. the tailpipe according to claim 1 with waste gas ejecting ash-clearing structure, which is characterized in that the trunnion（2）
Inlet end be equipped with flare openings, the ejector pipe（3）Positioned at straight pipe（11）Trunnion is inserted into internal one end（2）.
3. the tailpipe according to claim 2 with waste gas ejecting ash-clearing structure, which is characterized in that the ejector pipe
（3）For right-angle elbow pipe, it is located at straight pipe（11）Internal one end and trunnion（2）It is aligned at minimum diameter.
4. the tailpipe according to claim 1 with waste gas ejecting ash-clearing structure, which is characterized in that the ejector pipe
（3）Positioned at straight pipe（11）External one end is equipped with connecting flange（4）, the connecting flange（4）Lead to filter for connecting
Connecting tube.
5. the tailpipe according to claim 1 with waste gas ejecting ash-clearing structure, which is characterized in that the flange（5）
For T-flange, flange（5）It is equipped with jointing clip（6）.
6. the tailpipe according to claim 1 with waste gas ejecting ash-clearing structure, which is characterized in that the trunnion（2）
The a diameter of exhaust main in most thin place（1）Half.
7. the tailpipe according to claim 1 with waste gas ejecting ash-clearing structure, which is characterized in that the exhaust main
（1）And flange（5）It is welded as a whole.
8. the tailpipe according to claim 1 with waste gas ejecting ash-clearing structure, which is characterized in that the straight pipe
（11）It is interior to be equipped with throttling trunnion（7）；The throttling trunnion（7）Inlet end diameter and exhaust main（1）Quite, close to trunnion
（2）Place's diameter tapers into, and is inserted into trunnion（2）；The trunnion（2）Inlet end be equipped with flare openings, flare openings
Edge and straight pipe（11）Inner wall is in contact；The ejector pipe（3）For straight tube, it is located at straight pipe（11）Internal one end with
Throttle trunnion（7）Diameter smaller part is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820023638.0U CN207905907U (en) | 2018-01-05 | 2018-01-05 | Tailpipe with waste gas ejecting ash-clearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820023638.0U CN207905907U (en) | 2018-01-05 | 2018-01-05 | Tailpipe with waste gas ejecting ash-clearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207905907U true CN207905907U (en) | 2018-09-25 |
Family
ID=63566916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820023638.0U Active CN207905907U (en) | 2018-01-05 | 2018-01-05 | Tailpipe with waste gas ejecting ash-clearing structure |
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|---|---|
| CN (1) | CN207905907U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145390A (en) * | 2019-05-30 | 2019-08-20 | 广船国际有限公司 | A kind of drop back pressure tapping equipment and drop back pressure discharge method |
| CN111173066A (en) * | 2020-01-10 | 2020-05-19 | 徐州徐工矿业机械有限公司 | Silencer device with waste gas injection function and excavator |
| CN111207585A (en) * | 2020-03-16 | 2020-05-29 | 临沭县东升磨料有限公司 | A dry pneumatic conveying multi-functional device for carborundum production |
-
2018
- 2018-01-05 CN CN201820023638.0U patent/CN207905907U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145390A (en) * | 2019-05-30 | 2019-08-20 | 广船国际有限公司 | A kind of drop back pressure tapping equipment and drop back pressure discharge method |
| CN110145390B (en) * | 2019-05-30 | 2021-11-26 | 广船国际有限公司 | Backpressure-reducing discharge device and backpressure-reducing discharge method |
| CN111173066A (en) * | 2020-01-10 | 2020-05-19 | 徐州徐工矿业机械有限公司 | Silencer device with waste gas injection function and excavator |
| CN111207585A (en) * | 2020-03-16 | 2020-05-29 | 临沭县东升磨料有限公司 | A dry pneumatic conveying multi-functional device for carborundum production |
| CN111207585B (en) * | 2020-03-16 | 2023-10-03 | 临沭县东升磨料有限公司 | Drying device for silicon carbide production |
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