CN205605285U - In, for heavy truck exhaust system exhaust pipe - Google Patents
In, for heavy truck exhaust system exhaust pipe Download PDFInfo
- Publication number
- CN205605285U CN205605285U CN201620417437.XU CN201620417437U CN205605285U CN 205605285 U CN205605285 U CN 205605285U CN 201620417437 U CN201620417437 U CN 201620417437U CN 205605285 U CN205605285 U CN 205605285U
- Authority
- CN
- China
- Prior art keywords
- pipe
- adpting flange
- medium
- intubate
- type truck
- 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
Links
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 230000003197 catalytic effect Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 28
- 235000013877 carbamide Nutrition 0.000 description 14
- 239000004202 carbamide Substances 0.000 description 14
- 238000007789 sealing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004531 microgranule Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Abstract
The utility model relates to a pipeline connecting structure specifically is an in, for heavy truck exhaust system exhaust pipe, including the intubate of inlet end and the sleeve pipe of being connected with the intubate, the intubate is equipped with the throat pipe with the sheathed tube link, the external diameter of throat pipe is unanimous with the internal diameter of bushing end, the terminal surface of sheathed tube link is equipped with flange I, the middle part of throat pipe is equipped with flange II. Improved the leakproofness of blast pipe with the blast pipe junction, especial improvement blast pipe and the leakproofness that catalytic muffler is connected are avoided ureal and are revealed. The utility model discloses simple structure, dependable performance, low in manufacturing cost and simple to operate, suitable using widely.
Description
Technical field
This utility model relates to pipeline jointing construction, specifically a kind of Medium or severe type truck exhaust systems gas exhaust piping.
Background technology
The emission of diesel engine is mainly oxynitride and microgranule, next to that Hydrocarbon.Process oxynitride mainly by catalysis reduction.Along with the raising of discharge standard, more and more higher to the requirement of oxynitride in aerofluxus.At present, in, manufacturing enterprise's many employings carbamide of heavy truck car process oxynitride as reducing agent.
For making carbamide spray into uniformly in exhaustor, urea nozzle device need to be provided with on gas exhaust piping.For ensureing that carbamide is atomized as far as possible and uniformly mixes with aerofluxus, there are certain requirements the distance between nozzle to catalytic muffler interior carrier, the biggest carbamide atomizing effect of distance is the best.For improving carbamide atomizing effect, sometimes urea nozzle is arranged in the last period into catalytic muffler on exhaustor.This requires that exhaustor the last period of catalytic muffler has the best sealing with being connected between catalytic muffler, and otherwise urea liquid easily produces in the junction of two pieces and reveals.On the one hand, in carbamide is revealed and will necessarily be caused entrance catalytic muffler, urea amount reduces, it is impossible to effectively process oxynitride；On the other hand, after carbamide is revealed, meet cold easily generation in junction and crystallize, affect the attractive in appearance of car load, and enter the carbamide in air, to environment.
Summary of the invention
The purpose of this utility model, it is simply that for solving the problem that prior art exists, and devise a kind of Medium or severe type truck exhaust systems gas exhaust piping, dependable performance, lower-cost structure, particularly improves the sealing that exhaustor is connected with catalytic muffler, it is to avoid the leakage of carbamide.
The technical solution of the utility model is: a kind of Medium or severe type truck exhaust systems gas exhaust piping, including inlet end intubate and with intubate the sleeve pipe being connected, described in intubate the connection end with sleeve pipe and be provided with necking pipe；The external diameter of described necking pipe is consistent with the internal diameter of telescopic joint end；The end face connecting end of described sleeve pipe is provided with adpting flange I；The middle part of described necking pipe is provided with adpting flange II.
Described adpting flange I and adpting flange II is connected by card band fasteners and interfixes.
It is provided with Gask-O-Seal between described adpting flange I and adpting flange II.
Described Gask-O-Seal includes the stainless steel outer sleeve of outside, and inside is provided with skeleton steel disc and fills expanded graphite, and overcoat is 304 grade stainless steels.
Described card band fasteners is two semicircular external member compositions, and the bolt and nut arranged by upper and lower two ends is fastened.
The V-structure of depression is used inside the external member of described card band fasteners.
The beneficial effects of the utility model can be drawn by such scheme: owing to being connected by bushing type, so that the gap connected obtains excessively so that in pipe, gas circulation is more smooth.Also improve the sealing of exhaustor and exhaustor junction, particularly improve the sealing that exhaustor is connected with catalytic muffler, it is to avoid the leakage of carbamide.This utility model simple in construction, dependable performance, low cost of manufacture and easy for installation, suitably promote the use of.
As can be seen here, this utility model compared with prior art has substantive distinguishing features and progress, and its beneficial effect implemented also is apparent from.
Accompanying drawing illustrates:
Fig. 1 is the attachment structure schematic diagram that this utility model intubates with sleeve pipe；
Fig. 2 is that illustration of specifically executing of the present utility model is intended to；
Fig. 3 is gasket structure schematic diagram of the present utility model；
Fig. 4 is the cross section structure schematic diagram of sealing gasket.
Fig. 5 is external member structure schematic diagram in card band fasteners.
Wherein, 1 for intubating, and 2 is sealing gasket, and 3 is card band fasteners, and 4 is bolt and nut, and 6 is sleeve pipe, and 10 is stainless steel outer sleeve, and 11 is expanded graphite, and 12 is skeleton steel disc.
Detailed description of the invention:
In order to be more fully understood that this utility model, explain in detail embodiment of the present utility model below in conjunction with the accompanying drawings.
Detailed description of the invention: a kind of Medium or severe type truck exhaust systems gas exhaust piping as shown in Figure 1, 2, including inlet end intubate 1 and with intubate 1 sleeve pipe 6 being connected, described in intubate 1 and be provided with necking pipe with the connection end of sleeve pipe 6；The internal diameter that the external diameter of described necking pipe connects end with sleeve pipe 6 is consistent；The end face connecting end of described sleeve pipe 6 is provided with adpting flange I；The middle part of described necking pipe is provided with adpting flange II.Adpting flange I and adpting flange II is connected by card band fasteners 3 and interfixes.It is provided with Gask-O-Seal 2 between described adpting flange I and adpting flange II.Gask-O-Seal 2 includes the stainless steel outer sleeve 10 of outside, and inside is provided with skeleton steel disc 12 and fills expanded graphite 11, and overcoat is 304 grade stainless steels.Described card band fasteners 3 is two semicircular external member compositions, and the bolt and nut 4 arranged by upper and lower two ends is fastened.The V-structure of depression is used inside the external member of described card band fasteners 3.
Described above is not to restriction of the present utility model; this utility model is also not limited to the example above; change that those skilled in the art are made in essential scope of the present utility model, retrofit, add or replace, also should belong to protection domain of the present utility model.
Claims (6)
1. a Medium or severe type truck exhaust systems gas exhaust piping, including inlet end intubate and with intubate the sleeve pipe being connected, it is characterised in that intubate the connection end with sleeve pipe described in: and be provided with necking pipe；The external diameter of described necking pipe is consistent with the internal diameter of telescopic joint end；The end face connecting end of described sleeve pipe is provided with adpting flange I；The middle part of described necking pipe is provided with adpting flange II.
2. Medium or severe type truck exhaust systems gas exhaust piping as claimed in claim 1, it is characterised in that: described adpting flange I and adpting flange II is connected by card band fasteners and interfixes.
3. Medium or severe type truck exhaust systems gas exhaust piping as claimed in claim 2, it is characterised in that: it is provided with Gask-O-Seal between described adpting flange I and adpting flange II.
4. Medium or severe type truck exhaust systems gas exhaust piping as claimed in claim 3, it is characterised in that: described Gask-O-Seal includes the stainless steel outer sleeve of outside, and inside is provided with skeleton steel disc and fills expanded graphite, and overcoat is 304 grade stainless steels.
5. Medium or severe type truck exhaust systems gas exhaust piping as claimed in claim 2, it is characterised in that: described card band fasteners is two semicircular external member compositions, and the bolt and nut arranged by upper and lower two ends is fastened.
6. Medium or severe type truck exhaust systems gas exhaust piping as claimed in claim 5, it is characterised in that: use the V-structure of depression inside the external member of described card band fasteners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620417437.XU CN205605285U (en) | 2016-05-10 | 2016-05-10 | In, for heavy truck exhaust system exhaust pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620417437.XU CN205605285U (en) | 2016-05-10 | 2016-05-10 | In, for heavy truck exhaust system exhaust pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205605285U true CN205605285U (en) | 2016-09-28 |
Family
ID=56966632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620417437.XU Expired - Fee Related CN205605285U (en) | 2016-05-10 | 2016-05-10 | In, for heavy truck exhaust system exhaust pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205605285U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545394A (en) * | 2016-12-08 | 2017-03-29 | 中国北方发动机研究所(天津) | A kind of adjustable diesel exhaust gas pipe connection |
-
2016
- 2016-05-10 CN CN201620417437.XU patent/CN205605285U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545394A (en) * | 2016-12-08 | 2017-03-29 | 中国北方发动机研究所(天津) | A kind of adjustable diesel exhaust gas pipe connection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160928 |