CN203131293U - Composite pipe discharging bend structure for pressure cooking device - Google Patents
Composite pipe discharging bend structure for pressure cooking device Download PDFInfo
- Publication number
- CN203131293U CN203131293U CN201220453511.5U CN201220453511U CN203131293U CN 203131293 U CN203131293 U CN 203131293U CN 201220453511 U CN201220453511 U CN 201220453511U CN 203131293 U CN203131293 U CN 203131293U
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- composite pipe
- bend
- pipe
- cooking device
- flange
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Abstract
The utility model provides a composite pipe discharging bend structure for a pressure cooking device. The composite pipe discharging bend structure for the pressure cooking device comprises a pipeline, a flange and a bend. The composite pipe discharging bend structure for the pressure cooking device is characterized in that a second non-standard flange is connected with a pipeline in a tank and a bimetal composite pipe bend respectively in a welding mode. The bimetal composite pipe bend is inserted into a first non-standard flange and connected in a welding mode, and a bimetal composite pipe is inserted into the first non-standard flange and is connected in a welding mode. A transition connection pipe of an outlet of a container used for the bimetal composite pipe is connected with a connection pipe of a cylinder body. Two welding joints prone to abrasion are reduced in terms of structure, and the possibilities of wearing through the welding joints and the container in an affection zone of the welding joints are reduced. Meanwhile, the wear-resistant bimetal composite pipe is used for replacing a common punching bend so as to avoid and reduce flushing and abrasion on the welding joints, a hot affection zone and interior and exterior of the hot affection zone. In addition, the composite pipe discharging bend structure for the pressure cooking device has the advantages of being simple in structure, reliable in performance and easy to maintain, and is suitable for discharging bent pipe devices of various heaters.
Description
Technical field
The utility model belongs to the chemical industry metallurgical mechanical discipline, is specifically related to the pressed boiler of stripping operation in the Bayer process alumina producing, also can be for the structural type of containers such as other chemical industry class groove jar.
Background technique
Pressed boiler is for a kind of heater of alumina producing stripping operation heating slip, divide preheating pressed boiler, heating pressed boiler and reaction pressure boiler, the general its top feed that adopts, the mode of lower side discharging, discharge nozzle structure generally are that sleeve pipe adds the pattern that welds 60 ° of elbows.Because elbow has changed the flow direction of material, often owing to logistics erosive wear weld seam, weld heat-affected zone and interior curved.Owing to the structure problem of elbow, can't be checked through wearing and tearing and the interior curved wearing and tearing of weld seam simultaneously, in case the worn out material spray that just causes, the processing of can only stopping, it is big to cause damage.All the time, can only adopt this elbow of periodic replacement and sleeve pipe, but still not have to solve the problem of wearing and tearing material spray, because its wearing and tearing do not have rule.
The model utility content
In order effectively to solve the pressed boiler first elbow weld seam and interior curved wearing and tearing, at first consider to adopt wear-resisting composite pipe structure, will adopt new structure in addition, as far as possible the quantity of cancellation or minimizing weld seam, because weld seam is the position of the easy erosive wear of sunlight, also can't find by detecting.It at first is the selection of material, material selection wear-resisting composite bimetal pipe, it be the weldless tube of pressure-bearing inner by certain casting technique compound certain thickness antifriction metal (AFM) layer, the second, by the structure of design employing flange, into flange is inlayed in bimetal tube elbow termination, outer tube at flange neck and composite pipe welds then, and like this, weld seam is positioned at the outside of pipeline, discord slip direct contact scour has improved the reliability of weld seam.The 3rd, reach cylindrical shell and take over the also design by adpting flange of part, sleeve pipe is inlayed welded pipe line outside, good back, avoid weld seam directly to wash away weld seam, the 4th is owing to adopted composite pipe structure, in order to guarantee flow and flow velocity, the external diameter of elbow is bigger than original common weldless tube, and the tail end of structure adopts the reducing short tube to connect.
The utility model technological scheme that adopts of dealing with problems is:
A kind of pressed boiler composite pipe discharging elbow structure, comprise pipeline, flange, elbow, it is characterized in that: the second nonstandard flange respectively with jar interior conduit, composite bimetal pipe elbow by being welded together, the composite bimetal pipe elbow injects to adopt behind the first nonstandard flange and is welded to connect, composite bimetal pipe injects to adopt behind the first nonstandard flange and is welded to connect, and composite bimetal pipe is taken over the container mouth transition and connected cylindrical shell and take over.
The utility model has reduced the twice weld seam of wearing and tearing easily from structure, has reduced weld seam and the worn out possibility of phase zone of influence container.Simultaneously the utility model has adopted wear-resisting composite bimetal pipe to replace common punched bend, has also avoided, has reduced weld seam, heat affected zone and inside and outside wash away and wear and tear, and had simple in structure, reliable performance, safeguards characteristic of simple.
The utility model is applicable to the discharging bending device of various heaters, particularly is applicable to the pressed boiler of aluminium oxide stripping operation, and the common punched bend of alternative original design adds the discharging of flange welding and bends.
Description of drawings
Accompanying drawing 1 is pressed boiler discharging elbow structure schematic representation.
Among the figure, the 1-gasket seal, 2-composite pipe elbow, 3-reinforcement short tube, the 4-first nonstandard flange, the 5-double threaded screw, the 6-nut, the 7-composite bimetal pipe, the transition of 8-container mouth is taken over, the 9-second nonstandard flange, 10-pipeline, 11-container barrel.
Embodiment
Concrete implementing method is, design the second nonstandard flange 9 respectively with jar interior conduit 10, composite bimetal pipe elbow 2 by being welded together, the first nonstandard flange 4 is to design for prolonged section composite pipe 7 is installed, the first nonstandard flange 4 and composite bimetal pipe elbow 2, nonstandard flange 4 and composite bimetal pipe 7 weld after being and injecting flange, and put reinforcement short tube 3.Being connected of composite bimetal pipe and former DN250 weldless tube adopts the container mouth transition to take over 8(reducing short tube) connect, Placement is welded, and is equivalent to the reducing of pipeline.
Claims (1)
1. a pressed boiler is with composite pipe discharging elbow structure, comprise pipeline, flange, elbow, it is characterized in that: the second nonstandard flange (9) respectively with jar interior conduit (10), composite bimetal pipe elbow (2) by being welded together, composite bimetal pipe elbow (2) injects the employing of the first nonstandard flange (4) back and is welded to connect, composite bimetal pipe (7) injects the employing of the first nonstandard flange (4) back and is welded to connect, and composite bimetal pipe (7) connects cylindrical shell with container mouth transition adapter (8) and takes over.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220453511.5U CN203131293U (en) | 2012-09-06 | 2012-09-06 | Composite pipe discharging bend structure for pressure cooking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220453511.5U CN203131293U (en) | 2012-09-06 | 2012-09-06 | Composite pipe discharging bend structure for pressure cooking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203131293U true CN203131293U (en) | 2013-08-14 |
Family
ID=48939271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220453511.5U Expired - Lifetime CN203131293U (en) | 2012-09-06 | 2012-09-06 | Composite pipe discharging bend structure for pressure cooking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203131293U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925442A (en) * | 2014-05-06 | 2014-07-16 | 苏州市诚品精密机械有限公司 | Connecting pipe |
| CN106052469A (en) * | 2016-07-22 | 2016-10-26 | 北京华福工程有限公司 | Connection structure special for special material inner tracing pipe and equipment |
-
2012
- 2012-09-06 CN CN201220453511.5U patent/CN203131293U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925442A (en) * | 2014-05-06 | 2014-07-16 | 苏州市诚品精密机械有限公司 | Connecting pipe |
| CN106052469A (en) * | 2016-07-22 | 2016-10-26 | 北京华福工程有限公司 | Connection structure special for special material inner tracing pipe and equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |