CN206889067U - A kind of double expansion joint gas extraction system for natural gas engine - Google Patents
A kind of double expansion joint gas extraction system for natural gas engine Download PDFInfo
- Publication number
- CN206889067U CN206889067U CN201720719226.6U CN201720719226U CN206889067U CN 206889067 U CN206889067 U CN 206889067U CN 201720719226 U CN201720719226 U CN 201720719226U CN 206889067 U CN206889067 U CN 206889067U
- Authority
- CN
- China
- Prior art keywords
- expansion joint
- extraction system
- blast pipe
- natural gas
- expansion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a kind of double expansion joint gas extraction system for natural gas engine, it includes the first expansion joint, blast pipe, the second expansion joint and the silencer being sequentially connected, first expansion joint is vertically provided for eliminating the caused expansion in blast pipe longitudinal direction and contraction, and second expansion joint is horizontally disposed to be used to eliminate blast pipe laterally caused expansion and contraction.The utility model eliminates line expansion and the contraction of vertical and horizontal both direction by the expansion joint vertically and horizontally set, so as to ensure that the smooth vertical and horizontal of exhaust line, do not deform, realize reduction unit vibration, improve the service life of engine.
Description
Technical field
The utility model belongs to engine exhaust apparatus technical field, and in particular to a kind of for the double of natural gas engine
Expansion joint gas extraction system.
Background technology
Natural gas engine can produce substantial amounts of high-temperature exhaust air in operation, and engine exhaust system is basic both at home and abroad at present
Structure is single exhaust expansion section；Engine exhaust delivery temperature is usually 550~650 DEG C, under high temperature action, is vented steel pipe
Thermal expansion can occur, if silencer is fixed with muffler bracket, exhaust line will necessarily be made to produce the displacement of horizontal direction,
Exhaust line is tilted to the left at expansion joint, increase the deflection of expansion joint, if exhaust line is longer, can directly cause
Expansion joint tears and damaged, and influences the operation of engine；Simultaneously as the deformation of exhaust line, can increase shaking for unit
It is dynamic.
Utility model content
The purpose of this utility model is to provide a kind of double expansion joint gas extraction system for natural gas engine, by perpendicular
Nogata sets expansion joint respectively to horizontal direction, reduces the vibration of engine, improves the service life of engine.
Technical scheme is used by the utility model：
A kind of double expansion joint gas extraction system for natural gas engine, it includes the first expansion joint, the row being sequentially connected
Tracheae, the second expansion joint and silencer, first expansion joint are vertically provided for eliminating caused by blast pipe longitudinal direction
Expansion and contraction, second expansion joint is horizontally disposed to be used to eliminate blast pipe laterally caused expansion and contraction.
The characteristics of the utility model, also resides in,
First expansion joint and the second expansion joint are fixed on the blast pipe by flange.
First expansion joint and the second expansion joint are multi-layered type expansion joint.
It further comprises the muffler bracket for support silencer.
It further comprises the exhaust pipe support for support blast pipe.
The exhaust pipe support is provided with one or two.
First expansion joint is connected with blast pipe by conical pipe.
Compared with prior art, in use, eliminating longitudinal direction and horizontal stroke by the expansion joint vertically and horizontally set
Line expansion and contraction to both direction, so as to ensure that the smooth vertical and horizontal of exhaust line, do not deform, realize reduction
Unit vibration, improve the service life of engine.
Brief description of the drawings
Fig. 1 is the entirety that the utility model embodiment provides a kind of double expansion joint gas extraction system for natural gas engine
Structural representation.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
The utility model embodiment provides a kind of double expansion joint gas extraction system for natural gas engine, as shown in figure 1,
It includes the first expansion joint 1, blast pipe 2, the second expansion joint 3 and the silencer 4 being sequentially connected, and the first expansion joint 1 is along vertical side
To expansion and contraction caused by the longitudinal direction of elimination blast pipe 2 is provided for, the second expansion joint 3 is horizontally disposed for the row of elimination
The laterally caused expansion and contraction of tracheae 2, so, passes through the first expansion joint 1 and the second expansion joint 3 eliminates vertical and horizontal two
The line expansion in direction and contraction, so as to ensure that the smooth vertical and horizontal of exhaust line, do not deform.
First expansion joint and the second expansion joint are fixed on the blast pipe by flange.
It further comprises the muffler bracket 5 for support silencer 4, so, avoids silencer because of blast pipe 2
Deform and shake.
It further comprises the exhaust pipe support 6 for support blast pipe 2, and exhaust pipe support 6 is provided with one or two
It is individual, so, blast pipe 2 is propped up by exhaust pipe support 6 and stretched, avoid it from occurring bending and influenceing to imitate in use
Fruit.
First expansion joint 1 and blast pipe 2 are connected by conical pipe 7.
Using such scheme, compared with prior art, in use, passing through the expansion joint vertically and horizontally set
Line expansion and the contraction of vertical and horizontal both direction are eliminated, so as to ensure that the smooth vertical and horizontal of exhaust line, is not become
Shape, reduction unit vibration is realized, improve the service life of engine.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should
It is defined by scope of the claims.
Claims (7)
1. a kind of double expansion joint gas extraction system for natural gas engine, it is characterised in that it includes first be sequentially connected
Expansion joint, blast pipe, the second expansion joint and silencer, first expansion joint are vertically provided for elimination blast pipe and indulged
To caused expansion and contraction, second expansion joint it is horizontally disposed be used for eliminate blast pipe laterally caused by expansion and
Shrink.
A kind of 2. double expansion joint gas extraction system for natural gas engine according to claim 1, it is characterised in that institute
State the first expansion joint and the second expansion joint is fixed on the blast pipe by flange.
A kind of 3. double expansion joint gas extraction system for natural gas engine according to claim 2, it is characterised in that institute
It is multi-layered type expansion joint to state the first expansion joint and the second expansion joint.
A kind of 4. double expansion joint gas extraction system for natural gas engine according to claim 3, it is characterised in that its
Further comprise the muffler bracket for support silencer.
A kind of 5. double expansion joint gas extraction system for natural gas engine according to claim 4, it is characterised in that its
Further comprise the exhaust pipe support for support blast pipe.
A kind of 6. double expansion joint gas extraction system for natural gas engine according to claim 5, it is characterised in that institute
State exhaust pipe support and be provided with one or two.
A kind of 7. double expansion joint gas extraction system for natural gas engine according to claim 6, it is characterised in that institute
The first expansion joint is stated to connect by conical pipe with blast pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720719226.6U CN206889067U (en) | 2017-06-20 | 2017-06-20 | A kind of double expansion joint gas extraction system for natural gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720719226.6U CN206889067U (en) | 2017-06-20 | 2017-06-20 | A kind of double expansion joint gas extraction system for natural gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206889067U true CN206889067U (en) | 2018-01-16 |
Family
ID=61315839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720719226.6U Expired - Fee Related CN206889067U (en) | 2017-06-20 | 2017-06-20 | A kind of double expansion joint gas extraction system for natural gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206889067U (en) |
-
2017
- 2017-06-20 CN CN201720719226.6U patent/CN206889067U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 Termination date: 20190620 |