CN202757109U - Collecting box end cover device - Google Patents
Collecting box end cover device Download PDFInfo
- Publication number
- CN202757109U CN202757109U CN 201220375439 CN201220375439U CN202757109U CN 202757109 U CN202757109 U CN 202757109U CN 201220375439 CN201220375439 CN 201220375439 CN 201220375439 U CN201220375439 U CN 201220375439U CN 202757109 U CN202757109 U CN 202757109U
- Authority
- CN
- China
- Prior art keywords
- collecting box
- end cover
- box end
- end cap
- steel plate
- 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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- Pipe Accessories (AREA)
Abstract
The utility model provides a collecting box end cover device, relates to a collecting box device, in particular to a collecting box end cover which aims to solve the problems that a heating surface pipe is welded with a joint of a collecting box pipe in butt welding mode during boiler production so that welding quality is decreased, and checking and maintaining are not convenient when the heating surface pipe is out of order. The collecting box end cover device comprises the collecting box end cover, wherein a through hole is arranged in the collecting box end cover. The collecting box end cover device further comprises a pressing plate, a nut, a double-screw bolt, a rounded steel plate and a sealing washer, wherein one end face of the double-screw bolt and the central position of the rounded steel plate are welded together, the through hole arranged in the collecting box end cover is covered by the rounded steel plate and corresponds to the rounded steel plate, the pressing plate leans against the outer end face of the collecting box end cover and corresponds to the through hole arranged in the collecting box end cover. The double-screw bolt penetrates through the pressing plate through the through hole and is connected with the nut in fastened mode. The sealing washer is arranged between the rounded steel plate and the collecting box end cover. The collecting box end cover device is suitable for the boiler production.
Description
Technical field
The utility model relates to a kind of header device, particularly relates to a kind of header end cap.
Background technology
The header end cap is the important device in the boiler heating surface, open hand hole at the header end cap at present, be welded with pipe joint at hand hole, pipe joint on the header end cap and heating surface tube steel pipe can only adopt the form of outside butt welding to cause welding quality low when welding, when heating surface tube breaks down, be inconvenient to investigate maintenance, also do not have to solve the device of problems in the prior art.
The utility model content
The utility model causes welding quality to reduce in order to solve the mode that adopts butt welding when heating surface tube in the boiler for producing when welding, and is inconvenient to investigate the problem of maintenance when heating surface tube breaks down, and then a kind of header end cap device is provided.
The utility model is to address the above problem the technical scheme that adopts to be: a kind of header end cap device described in the utility model comprises the header end cap; Have through hole on the header end cap, described device also comprises pressing plate, nut, double-screw bolt, circular steel plate and seal washer; One end end face of double-screw bolt with circular steel plate the center seam be in the same place, circular sheet-steel cover is on the inner face of header end cap and corresponding with the through hole on the header end cap, pressing plate leans against on the outer face of header end cap and is corresponding with the through hole on the header end cap, double-screw bolt passes pressing plate via through hole and nut check is fixed, and is provided with seal washer between circular steel plate and the header end cap.
The beneficial effects of the utility model are: in producing during the heating surface tube welding with heating surface tube one end seam on the header body, and weld seam is in the header body, not only improved welding quality, simultaneously when heating surface tube breaks down, also be convenient to investigation, maintenance, the utlity model has simple in structurely, satisfy the requirement of modern designs, be convenient to installation, maintenance, reliable in structure, security performance high.
Description of drawings
Fig. 1 is that the utility model overall structure master looks cutaway view.
The specific embodiment
The specific embodiment one: in conjunction with Fig. 1 present embodiment is described, a kind of header end cap device of present embodiment, described device comprises header end cap 6; Have through hole 6-1 on the header end cap 6, described device also comprises pressing plate 1, nut 2, double-screw bolt 3, circular steel plate 4 and seal washer 5; One end end face of double-screw bolt 3 is in the same place with circular steel plate 4 center seam, circular steel plate 4 covers on the inner face of header end cap 6 and corresponding with the through hole 6-1 on the header end cap 6, pressing plate 1 leans against on the outer face of header end cap 6 and is corresponding with the through hole 6-1 on the header end cap 6, double-screw bolt 3 passes pressing plate 1 via through hole 6-1 and is locked with nut 2, is provided with seal washer 5 between circular steel plate 4 and the header end cap 6.
The specific embodiment two: in conjunction with Fig. 1 present embodiment is described, a kind of header end cap device of present embodiment, described circular steel plate 4 is provided with shoulder 4-1, and seal washer 5 is enclosed within on the shoulder 4-1, and other are identical with the specific embodiment one.
The specific embodiment three: in conjunction with Fig. 1 present embodiment is described, a kind of header end cap device of present embodiment, described through hole 6-1 opening diameter scope is 610mm-950mm, other are identical with the specific embodiment one.
Operation principle
Basic functional principle of the present utility model is to be processed with through hole at the header end cap, can be with the inside of heating surface tube seam at the header body by through hole, can improve welding quality like this, simultaneously when heating surface tube breaks down, need to investigate and overhaul, pressing plate on the cabinet end cap and circular steel plate can be disassembled, heating surface tube is investigated maintenance.
Claims (3)
1. header end cap device, described device comprises header end cap (6); Have through hole (6-1) on the header end cap (6), it is characterized in that: described device also comprises pressing plate (1), nut (2), double-screw bolt (3), circular steel plate (4) and seal washer (5); One end end face of double-screw bolt (3) with circular steel plate (4) the center seam be in the same place, circular steel plate (4) covers on the inner face of header end cap (6) and corresponding with the through hole (6-1) on the header end cap (6), pressing plate (1) leans against on the outer face of header end cap (6) and is corresponding with the through hole (6-1) on the header end cap (6), double-screw bolt (3) passes pressing plate (1) via through hole (6-1) and is locked with nut (2), is provided with seal washer (5) between circular steel plate (4) and the header end cap (6).
2. described a kind of header end cap device according to claim 1, described circular steel plate (4) is provided with shoulder (4-1), and seal washer (5) is enclosed within on the shoulder (4-1).
3. described a kind of header end cap device according to claim 1, described through hole (6-1) opening diameter scope is 610mm-950mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220375439 CN202757109U (en) | 2012-07-31 | 2012-07-31 | Collecting box end cover device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220375439 CN202757109U (en) | 2012-07-31 | 2012-07-31 | Collecting box end cover device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202757109U true CN202757109U (en) | 2013-02-27 |
Family
ID=47736289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220375439 Expired - Fee Related CN202757109U (en) | 2012-07-31 | 2012-07-31 | Collecting box end cover device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202757109U (en) |
-
2012
- 2012-07-31 CN CN 201220375439 patent/CN202757109U/en not_active Expired - Fee Related
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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: 20130227 Termination date: 20190731 |