CN210153767U - Steam pocket insertion type central sewer pipe joint structure - Google Patents
Steam pocket insertion type central sewer pipe joint structure Download PDFInfo
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- CN210153767U CN210153767U CN201920611141.5U CN201920611141U CN210153767U CN 210153767 U CN210153767 U CN 210153767U CN 201920611141 U CN201920611141 U CN 201920611141U CN 210153767 U CN210153767 U CN 210153767U
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- pipe joint
- drum
- small hole
- inner diameter
- joint structure
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Abstract
The utility model discloses a steam pocket plug-in type central sewer pipe joint structure, which comprises a boiler barrel and a pipe joint which are connected; the method is characterized in that: the upper end of the pipe joint is positioned above the lower edge of the inner diameter of the drum, the upper end of the pipe joint is provided with more than one small hole for communicating the inner hole and the outer wall of the pipe joint, the lower side edge of the small hole is not higher than the lower edge of the inner diameter of the drum, and the upper side edge of the small hole is not lower than the lower edge of the inner diameter of the drum; the utility model discloses do benefit to the drum and make water pressure and on-the-spot water pressure back drainage, have the great, low in manufacturing cost and convenient to use's of reinforcement area advantage.
Description
Technical Field
The utility model relates to a bayonet downcomer pipe joint structure of concentrating for steam pocket.
Background
The concentrated downcomer pipe diameters on the boiler drum are all larger, the concentrated downcomer pipe joints on the boiler drum are divided into plug-in pipe joints rather than non-plug-in pipe joints, the pipe joints with larger openings need reinforcement when strength is calculated, the plug-in pipe joints with the same specifications are large in insertion depth and large in reinforcement area when the upper ends of the plug-in pipe joints are inserted into the boiler drum, the plug-in pipe joints are economical from the perspective of manufacturing cost, but the water for the test cannot be completely emptied during the hydraulic test in the manufacturing process and the hydraulic test during boiler installation due to the fact that the pipe joints are inserted into the drum, and the use is inconvenient.
Disclosure of Invention
The utility model aims at the above-mentioned not enough of prior art, provide a downcomer coupling structure is concentrated to steam pocket bayonet, it does benefit to the drum and discharges water after making water pressure and on-the-spot water pressure to have the great, low in manufacturing cost of reinforcement area and convenient to use's advantage.
In order to achieve the aim, the utility model discloses a steam pocket plug-in type centralized sewer pipe joint structure, which comprises a boiler barrel and a pipe joint which are connected; the method is characterized in that: the upper end of the pipe joint is positioned above the lower edge of the inner diameter of the drum, the upper end of the pipe joint is provided with more than one small hole for communicating the inner hole and the outer wall of the pipe joint, the lower side edge of the small hole is not higher than the lower edge of the inner diameter of the drum, and the upper side edge of the small hole is not lower than the lower edge of the inner diameter of the drum;
the structure adopts the plug-in type central sewer pipe joint, the reinforcing area is large, the manufacturing cost is low, the small hole at the upper end of the pipe joint can completely drain the test water during the hydraulic test, and the use is convenient;
as a further improvement of the utility model, the lower side edge of the small hole and the lower edge of the inner diameter of the boiler barrel are all positioned on the same horizontal plane; the water for the test can be drained quickly, and the efficiency is improved;
as a further improvement of the utility model, the axial direction of the small hole is consistent with the axial direction of the boiler barrel; the water for the test can be drained more quickly, and the efficiency is improved;
to sum up, the utility model discloses do benefit to the drum and make water pressure and on-the-spot water pressure back drainage, have that the reinforcement area is great, low in manufacturing cost and convenient to use's advantage.
Drawings
Fig. 1 is a front view of an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the steam drum insertion type centralized sewer pipe joint structure of the embodiment comprises a boiler barrel 1 and a pipe joint 2 which are connected by welding, wherein the upper end of the pipe joint 2 is positioned above the lower edge of the inner diameter of the boiler barrel (namely, the pipe joint 2 extends into the boiler barrel 2 for a certain distance), the upper end of the pipe joint 2 is provided with a radial small hole 3 communicating the inner hole and the outer wall of the pipe joint, the lower side edge of the small hole 3 and the lower edge of the inner diameter of the boiler barrel are positioned on the same horizontal plane, and the axial direction of the small hole 3 is consistent with the axial;
this structure adopts bayonet concentrated downcomer pipe joint, and its reinforcement area is great, low in manufacturing cost, and the aperture 3 of the pipe joint 2 upper end communicates with each other with the inner chamber of boiler barrel 1, and the downside edge of aperture 3 and boiler barrel internal diameter lower limb are located same horizontal plane, have the biggest flow area, and the axial of aperture 3 is unanimous with the axial of boiler barrel 1, and the drainage is smooth and easy, can be completely, the experimental water of fast evacuation during hydraulic test, convenient to use.
Claims (3)
1. A steam pocket plug-in type centralized downcomer pipe joint structure comprises a boiler barrel and a pipe joint which are connected; the method is characterized in that: the upper end of the pipe joint is positioned above the lower edge of the inner diameter of the boiler barrel, more than one small hole for communicating the inner hole and the outer wall of the pipe joint is arranged at the upper end of the pipe joint, the lower side edge of the small hole is not higher than the lower edge of the inner diameter of the boiler barrel, and the upper side edge of the small hole is not lower than the lower edge of the inner diameter of the boiler barrel.
2. The steam drum insertion type centralized downcomer pipe joint structure according to claim 1, characterized in that: the lower side edge of the small hole and the lower edge of the inner diameter of the drum are positioned on the same horizontal plane.
3. The steam drum insertion type centralized downcomer pipe joint structure according to claim 1 or 2, characterized in that: the axial direction of the small hole is consistent with the axial direction of the drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920611141.5U CN210153767U (en) | 2019-04-30 | 2019-04-30 | Steam pocket insertion type central sewer pipe joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920611141.5U CN210153767U (en) | 2019-04-30 | 2019-04-30 | Steam pocket insertion type central sewer pipe joint structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210153767U true CN210153767U (en) | 2020-03-17 |
Family
ID=69758005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920611141.5U Active CN210153767U (en) | 2019-04-30 | 2019-04-30 | Steam pocket insertion type central sewer pipe joint structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210153767U (en) |
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2019
- 2019-04-30 CN CN201920611141.5U patent/CN210153767U/en active Active
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