CN205479846U - Flat welding method is blue for highly resistance hydrogen nature area neck - Google Patents
Flat welding method is blue for highly resistance hydrogen nature area neck Download PDFInfo
- Publication number
- CN205479846U CN205479846U CN201620023805.2U CN201620023805U CN205479846U CN 205479846 U CN205479846 U CN 205479846U CN 201620023805 U CN201620023805 U CN 201620023805U CN 205479846 U CN205479846 U CN 205479846U
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- China
- Prior art keywords
- flange
- mozzle
- honeycomb duct
- ring flange
- neck tube
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- 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.)
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- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The utility model provides a flat welding method is blue for highly resistance hydrogen nature area neck, including ring flange, neck tube, there is communicating honeycomb duct ring flange and neck tube inside, the honeycomb duct divide into two parts, and honeycomb duct upper portion pipe diameter equals that the pipe diameter of honeycomb duct lower part is greater than the pipe diameter on honeycomb duct upper portion, and the pipe wall of honeycomb duct lower part be the inclined plane of slyness, the utility model discloses utilize the inclined plane structure or the ARC structure of honeycomb duct lower part, reduce in the use fluid to the impact of flange especially flange joint department, improve the life and the sealing performance of flange.
Description
Technical field
This utility model relates to flange and manufactures field, particularly to a kind of high resistant to hydrogen hubbed clip-on-welding flange.
Background technology
Flange is again circular flange dish or bead.Flange be make pipe and pipe and and the interconnective part of valve, be connected to pipe end, traditional flange designs existing defects due to structure, causes the most easily occurring easily loosening at bump joint leakage.
Summary of the invention
This utility model provides a kind of high resistant to hydrogen hubbed clip-on-welding flange, reduce the fluid compressing for flange connections, improve sealing and the serviceability of flange connections, and there is high resistant to hydrogen performance, in order to achieve the above object, this utility model is by the following technical solutions: this utility model includes ring flange, neck tube, described ring flange with have the mozzle communicated inside neck tube, described mozzle is divided into two parts, mozzle top caliber is equal, the caliber of mozzle bottom is more than the caliber on mozzle top, and the tube wall of mozzle bottom is round and smooth inclined plane.
Preferably, the angle of described inclined plane is 45 °-60 °.
Preferably, projection, described ring flange and described neck tube circle it are provided with bottom described ring flange
Slip.
The beneficial effects of the utility model: this utility model uses resistant to hydrogen steel, there is high resistant to hydrogen performance, structurally utilize inclined plane structure or the globoidal structure of mozzle mozzle bottom, reduce the impact using process medium fluid for flange especially flange connections, improve service life and the sealing property of flange.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of case study on implementation of this utility model；
Fig. 2 is the structural representation of this utility model another kind case study on implementation；
1, ring flange；2, neck tube；3, boss, 31, groove；4, mozzle,
41, mozzle top, 42, mozzle bottom.
Detailed description of the invention
Case study on implementation one:
Understand as shown in Figure 1, this utility model includes ring flange 1, neck tube 2, described ring flange 1 is internal with neck tube 2 mozzle 4 communicated, described mozzle 4 is divided into two parts, mozzle top 41 caliber is equal, the caliber of mozzle bottom 42 is more than the caliber on mozzle top 41, and the tube wall of mozzle bottom 42 is round and smooth inclined plane.
Preferably, the angle of described inclined plane is 45 °-60 °.
Preferably, being provided with projection 3 bottom described ring flange 1, described ring flange 1 is with described
The round and smooth connection of neck tube 2.
Case study on implementation two:
Understand as shown in Figure 2, this utility model includes ring flange 1, neck tube 2, described ring flange 1 is internal with neck tube 2 mozzle 4 communicated, described mozzle 4 is divided into two parts, mozzle top 41 caliber is equal, the caliber of mozzle bottom 42 is more than the caliber on mozzle top 41, and the tube wall of mozzle bottom 42 is 1/4 round and smooth arc surface.
Preferably, the oval arc surface of described arc surface specifically 1/4.
Preferably, being provided with projection 3 bottom described ring flange 1, described ring flange 1 is with described
The round and smooth connection of neck tube 2.
Preferably, this utility model has high resistant to hydrogen performance, is embodied in material composition proportion and production technology, and in its material, each chemical composition proportion is: C:0.13-0.20；Si:0.20-0.60；Mn: 1.20-1.60；P:≤ 0.030；S:≤ 0.030；Cr: ≤ 0.25；Cu:≤ 0.25；Ni≤ 0.25；
Including for producing the production technology of the high steel of above-mentioned resistant to hydrogen performance: smelt, forge, heat treatment, described heat treatment includes quenching and tempering, and heat treatment parameter is hardening heat 920 DEG C ± 10 DEG C, and temperature is 630 DEG C ± 10 DEG C.
Preferably, air cooling after quenching.
Preferably, in forging process, initial forging temperature is 1260 DEG C ± 20 DEG C, and final forging temperature is more than 800 DEG C, air cooling after forging.
The technical scheme that this utility model can also have other embodiments, all employings to replace on an equal basis or equivalent transformation is formed, all fall within this utility model claimed within the scope of.
Claims (3)
1. one kind high resistant to hydrogen hubbed clip-on-welding flange, including ring flange, neck tube, described ring flange with have the mozzle communicated inside neck tube, it is characterized in that: described mozzle is divided into two parts, mozzle top caliber is equal, the caliber of mozzle bottom is more than the caliber on mozzle top, and the tube wall of mozzle bottom is round and smooth inclined plane.
One the most according to claim 1 high resistant to hydrogen hubbed clip-on-welding flange, it is characterised in that: the angle of described inclined plane is 45 °-60 °.
One the most according to claim 1 high resistant to hydrogen hubbed clip-on-welding flange, it is characterised in that: being provided with projection bottom described ring flange, described ring flange is round and smooth with described neck tube to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620023805.2U CN205479846U (en) | 2016-01-12 | 2016-01-12 | Flat welding method is blue for highly resistance hydrogen nature area neck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620023805.2U CN205479846U (en) | 2016-01-12 | 2016-01-12 | Flat welding method is blue for highly resistance hydrogen nature area neck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205479846U true CN205479846U (en) | 2016-08-17 |
Family
ID=56666824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620023805.2U Active CN205479846U (en) | 2016-01-12 | 2016-01-12 | Flat welding method is blue for highly resistance hydrogen nature area neck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205479846U (en) |
-
2016
- 2016-01-12 CN CN201620023805.2U patent/CN205479846U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |