CN204922352U - External fixation festival in steel bushing steel direct -burried steam conduit - Google Patents
External fixation festival in steel bushing steel direct -burried steam conduit Download PDFInfo
- Publication number
- CN204922352U CN204922352U CN201520538294.3U CN201520538294U CN204922352U CN 204922352 U CN204922352 U CN 204922352U CN 201520538294 U CN201520538294 U CN 201520538294U CN 204922352 U CN204922352 U CN 204922352U
- Authority
- CN
- China
- Prior art keywords
- steel tube
- plate
- ring flat
- thrust ring
- working steel
- 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.)
- Active
Links
Landscapes
- Thermal Insulation (AREA)
Abstract
The utility model relates to a street furniture field discloses an external fixation festival in steel bushing steel direct -burried steam conduit very much. It includes the work steel pipe, and the work steel pipe is equipped with the vice thrust crown plate of two symmetries outward, is equipped with two the same high temperature resistant backing plates rings between two vice thrust crown plates, is equipped with the power of promoting mainly crown plate between two high temperature resistant backing plates encircle, has several triangular supports at vice thrust crown plate peripheral hardware, work steel pipe overcoat has two sections branches to be listed as in the steel jacketPipe who promotes mainly power crown plate both sides, promotes mainly and is equipped with a plurality of deep floor on the steel jacketPipe of power crown plate both sides, it has inorganic insulation material to pack between work steel pipe and the steel jacketPipe, the utility model discloses the internal stress that can effectively solve the work steel pipe can not in time release or work the steel pipe mutually external pillar the problem of radial dislocation easily takes place, eliminated the pipeline thermal stress to the whole safe influence of pipe network.
Description
(1) technical field
The utility model relates to urban operating mechanism field, particularly fixed knot inside and outside a kind of direct buried steam pipe with steel jacket.
(2) background technique
Current, outside the steel sleeve steel direct buried steam pipeline road using steel pipe as outer pillar, slip insulating structure form obtains in field of thermal insulation and applies more widely.The high temperature of medium >=300 DEG C because the flowing medium of its conveying is high-temperature steam, and directly to contact with working steel tube, so can cause the axial direction heated distortion of working steel tube; And when heat is delivered to external protective steel tube by working steel tube and thermal insulating material, temperature declines very large, external protective steel tube surface temperature only has < 50 DEG C, causes the axial deformation of outer pillar relatively little at this temperature.In order to reduce the gap of axial deflection between outer steel pipe and working steel tube, and reducing the hot internal stress of working steel tube, generally taking in industry compensator is installed and coordinating the mode of Internally fixed node or extenal fixation joint to carry out.And when directly buried pipeline straight length distance is longer, or when the vapor (steam) temperature of conveying is too high, likely there will be: 1, Internally fixed node fundamentally can not reduce the hot internal stress of working pipe, therefore to actual life of compensator and safe effect having adverse effect; If because of vapor (steam) temperature uprush or compensator lost efficacy time, the internal stress of working steel tube can not discharge in time, also pipe explosion accident can occur.2, when stress reaches safety value, although extenal fixation joint by the axial force transmission of working steel tube on anchor block, can be eliminated stress by the microdisplacement of anchor block.But when compensator quantity is more, easily there is radial misalignments in the relative external protective steel tube of working steel tube, thermal insulating material cracky.
(3) summary of the invention
The utility model is in order to make up the defect of prior art, providing one has micro-flexible, fixed knot inside and outside the reliable direct buried steam pipe with steel jacket that can absorb working steel tube axial deformation, the internal stress that it effectively can solve working steel tube can not discharge in time or working steel tube mutually externally pillar easily there is the problem of radial misalignments, eliminate the impact of piping thermal prestressed on pipe network general safety.
The utility model is achieved by the following technical solution:
Fixed knot inside and outside a kind of direct buried steam pipe with steel jacket, comprise working steel tube, it is characterized in that, two pieces are provided with the secondary thrust ring flat-plate of the center line symmetry of working steel tube outside described working steel tube, two pieces of identical high temperature resistant backing plate rings are provided with between two pieces of secondary thrust ring flat-plates, the main thrust ring flat-plate with working steel tube concentric is provided with between two pieces of high temperature resistant backing plate rings, the internal diameter of described main thrust ring flat-plate is greater than the external diameter of working steel tube, 3 to 12 pieces are had along the uniform three-support of working steel tube circumference at secondary thrust ring flat-plate peripheral hardware, described working steel tube overcoat has two sections of identical external protective steel tubes, two sections of external protective steel tubes and working steel tube concentric are also respectively in main thrust ring flat-plate both sides, the external protective steel tube of described main thrust ring flat-plate both sides is provided with the some reinforcement gussets uniform in radioactivity, inorganic heat insulation material is filled with between described working steel tube and external protective steel tube, external protective steel tube is provided with humidity discharging pipe, and be provided with the outer pillar of humidity discharging outside humidity discharging pipe, external protective steel tube outer surface is coated with anticorrosive coat.
The beneficial effects of the utility model are:
1, two pieces of secondary thrust ring flat-plates directly weld with working steel tube, and are provided with three-support reinforcing, are closely linked after having the flexible high temperature resistant gasket ring of trace and main thrust ring flat-plate pretension between two pieces of secondary thrust ring flat-plates by two groups of 100mm.Owing to having certain span between two pieces of secondary thrust ring flat-plates, meanwhile, main thrust ring flat-plate welds with external protective steel tube, and therefore this structure can limit working steel tube relative external protective steel tube generation radial misalignments, eliminates the impaired insulation failure problem caused of thermal insulating material.
2, main thrust ring flat-plate does not directly contact with working steel tube, and broken by using high temperature resistant backing plate ring cutting the heat transfer bridge between secondary thrust ring flat-plate and main thrust ring flat-plate, between working steel tube and main thrust ring flat-plate.In addition, the internal stress of working steel tube can be delivered to external protective steel tube by secondary thrust ring flat-plate by main thrust ring flat-plate.Main thrust ring flat-plate again by Stress transmit on fixed knot with matching (installation foundation), when the internal stress of working steel tube exceedes safety value, Internally fixed node is high temperature resistant, and gasket ring will produce the stress of microdisplacement absorption working steel tube, thus is significantly weakened working steel tube stress.
3, the internal stress that the utility model solves working steel tube can not discharge in time or the problem of radial misalignments easily occurs working steel tube relative external protective steel tube, eliminates the impact of piping thermal prestressed on pipe network general safety.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described:
Fig. 1 is sectional structure schematic diagram of the present utility model.
In figure, 1 working steel tube, 2 external protective steel tubes, 3 main thrust ring flat-plates, 4 inorganic heat insulation materials, 5 three-support, 6 strengthen gusset, 7 humidity discharging pipes, the outer pillar of 8 humidity dischargings, 9 anticorrosive coats, 10 high temperature resistant backing plate rings, 11 secondary thrust ring flat-plates.
(5) embodiment
Accompanying drawing is specific embodiment of the utility model.As shown in Figure 1, fixed knot inside and outside this kind of direct buried steam pipe with steel jacket, comprise working steel tube 1, high temperature resistant backing plate ring 10 is had for symmetry axis overlaps successively to both sides with the center line of working steel tube 1, be welded with secondary thrust ring flat-plate 11, the main thrust ring flat-plate 3 with working steel tube 1 concentric is provided with between two pieces of high temperature resistant backing plate rings 10, the internal diameter of main thrust ring flat-plate 3 is greater than the external diameter of working steel tube 1, 3 to 12 pieces are connected to along the uniform three-support 5 of working steel tube 1 circumference in the outside weld of secondary thrust ring flat-plate 11, high temperature resistant backing plate ring 10 and main thrust ring flat-plate 3 are all vertical with working steel tube 1, two sections of identical external protective steel tubes 2 are had at working steel tube 1 overcoat, external protective steel tube 2 is also enclosed within high temperature resistant backing plate ring 10 simultaneously, the external diameter of high temperature resistant backing plate ring 10 equals the internal diameter of external protective steel tube 2, these two sections of external protective steel tubes 2 are also welded in main thrust ring flat-plate 3 both sides respectively with working steel tube 1 concentric, the external protective steel tube 2 of main thrust ring flat-plate 3 both sides is welded with the some reinforcement gussets 6 uniform in radioactivity, inorganic heat insulation material 4 is filled with between working steel tube 1 and external protective steel tube 2, external protective steel tube 2 is provided with humidity discharging pipe 7, and be provided with the outer pillar 8 of humidity discharging outside humidity discharging pipe 7, external protective steel tube 2 outer surface is coated with anticorrosive coat 9.
Concrete material of the present utility model and making, using process are as follows:
A, by working steel tube 1 blanking on request, two ends are vertically placed on working zone after accomplishing fluently groove;
B, measure the neutral position of this section of working steel tube 1, calculate the welding position of 1 piece of secondary thrust ring flat-plate 11,3 to 12 (by working pipe size, each three-support spacing≤200mm) three-support 5 are welded on working steel tube 1, one piece of secondary thrust ring flat-plate 11 is lain in three-support 6; Measuring and adjusting position makes secondary throw-out collar power plate 11 vertical with working steel tube 1, is welded on working steel tube 1 by secondary thrust ring flat-plate 11;
C, high temperature resistant backing plate ring 10, main thrust ring flat-plate 3, another block is high temperature resistant backing plate ring 10 and another 1 piece of secondary thrust ring flat-plate 11 order are placed on the fixing secondary thrust ring flat-plate 11 of spot welding, pretension is carried out with special tooling, measure secondary thrust ring flat-plate 11 and working steel tube 1 keep vertical after, the 2nd piece of secondary thrust ring flat-plate 11 spot welding is fixed on working steel tube 1.
D, the three-support 5 of equal number and specification to be welded on the 2nd piece of secondary thrust ring flat-plate 11.By the whole full weld of above all weld seams, overturn working steel tube 1 if desired.
E, be enclosed within working steel tube 1 by external protective steel tube 2, measure and keep concentric with working steel tube 1 and vertical with main thrust ring flat-plate 3, by spacing≤200mm laying reinforcement gusset 6, spot welding is fixed.By whole for all weld bonds full weld; Again the other end external protective steel tube 2 is welded and fixed according to the technique same with first paragraph external protective steel tube 2 and operation after upset.
F, after weldment cooling, knock out the residues such as welding slag, antirust treatment is carried out to weld, and anticorrosive coat 9 is applied on request to external protective steel tube 2 carry out anticorrosion.Inorganic heat insulation material 4 is filled between working steel tube 1 and external protective steel tube 2.
Except technical characteristics described in specification, all the other technical characteristicss are those skilled in the art's known technology.
Claims (1)
1. fixed knot inside and outside a direct buried steam pipe with steel jacket, comprise working steel tube (1), it is characterized in that, two pieces are provided with the secondary thrust ring flat-plate (11) of the center line symmetry of working steel tube (1) outside described working steel tube (1), two pieces of identical high temperature resistant backing plate rings (10) are provided with between two pieces of secondary thrust ring flat-plates (11), the main thrust ring flat-plate (3) with working steel tube (1) concentric is provided with between two pieces of high temperature resistant backing plate rings (10), the internal diameter of described main thrust ring flat-plate (3) is greater than the external diameter of working steel tube (1), 3 to 12 pieces are provided with along the uniform three-support (6) of working steel tube (1) circumference outside secondary thrust ring flat-plate (11), described working steel tube (1) overcoat has two sections of identical external protective steel tubes (2), two sections of external protective steel tubes (2) are with working steel tube (1) concentric and be respectively in main thrust ring flat-plate (3) both sides, the external protective steel tube (2) of described main thrust ring flat-plate (3) both sides is provided with the some reinforcement gussets (6) uniform in radioactivity, inorganic heat insulation material (4) is filled with between described working steel tube (1) and external protective steel tube (2), external protective steel tube (2) is provided with humidity discharging pipe (7), and be provided with the outer pillar (8) of humidity discharging outside humidity discharging pipe (7), external protective steel tube (2) outer surface is coated with anticorrosive coat (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538294.3U CN204922352U (en) | 2015-07-23 | 2015-07-23 | External fixation festival in steel bushing steel direct -burried steam conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538294.3U CN204922352U (en) | 2015-07-23 | 2015-07-23 | External fixation festival in steel bushing steel direct -burried steam conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204922352U true CN204922352U (en) | 2015-12-30 |
Family
ID=54971478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520538294.3U Active CN204922352U (en) | 2015-07-23 | 2015-07-23 | External fixation festival in steel bushing steel direct -burried steam conduit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204922352U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485432A (en) * | 2016-01-28 | 2016-04-13 | 沈圣良 | High-temperature pipeline fixing bracket and high-temperature pipeline fixing method |
| CN108930839A (en) * | 2018-08-03 | 2018-12-04 | 平煤神马建工集团有限公司 | A kind of direct buried steam pipe with steel jacket partition inner fixing device |
| CN111677971A (en) * | 2020-05-11 | 2020-09-18 | 济南市市政工程设计研究院（集团）有限责任公司 | Direct-buried steam main pipe moisture-removing system |
-
2015
- 2015-07-23 CN CN201520538294.3U patent/CN204922352U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485432A (en) * | 2016-01-28 | 2016-04-13 | 沈圣良 | High-temperature pipeline fixing bracket and high-temperature pipeline fixing method |
| CN108930839A (en) * | 2018-08-03 | 2018-12-04 | 平煤神马建工集团有限公司 | A kind of direct buried steam pipe with steel jacket partition inner fixing device |
| CN111677971A (en) * | 2020-05-11 | 2020-09-18 | 济南市市政工程设计研究院（集团）有限责任公司 | Direct-buried steam main pipe moisture-removing system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204922352U (en) | External fixation festival in steel bushing steel direct -burried steam conduit | |
| CN206527484U (en) | A kind of tube group butt welding positioner | |
| US20080277921A1 (en) | Method and a Sleeve for Joining Two Components | |
| CN204922353U (en) | External fixation festival in steel bushing steel steam direct -burried pipeline | |
| CN102601552B (en) | The heater of steel pipe butt welding | |
| CN109058635A (en) | Prefabricated thermal insulation bilayer bend pipe and preparation method thereof | |
| CN215673991U (en) | Prefabricated overhead anti-corrosion heat-insulation pipe capable of being quickly connected | |
| CN202812627U (en) | High-temperature expansion joint | |
| CN216408186U (en) | Prefabricated polyurethane heat-preservation fixed heat-insulation pipe bracket | |
| CN211315325U (en) | Direct-buried laying steam pipeline structure | |
| CN105485432B (en) | A kind of high-temperature pipe fixed support and high-temperature pipe fixing means | |
| CN110594534B (en) | Insulating internal fixing support of prefabricated direct-buried steam heat-insulating pipe | |
| CN213089173U (en) | Insulating fixed bolster of prefabricated direct-burried high temperature steam insulating tube | |
| CN109099252A (en) | Prefabricated thermal insulation dog-ear pipe fitting and preparation method thereof | |
| CN204922395U (en) | Steel bushing steel steam direct -burried pipeline internal fixation festival | |
| CN201787205U (en) | Supporting leg type heat insulation pipe support | |
| CN111022760A (en) | Direct-buried laying steam pipeline structure and construction method thereof | |
| CN202428125U (en) | Heating device for butt welding of steel tubes | |
| CN216009962U (en) | Single compensator for solar molten salt pipeline | |
| CN103775781A (en) | Air supply device expansion joint | |
| CN216201539U (en) | Disposable corrugated compensator | |
| CN219221596U (en) | Reinforcing tee joint structure for large-caliber heat supply welding | |
| CN216009966U (en) | Compound compensator for solar molten salt pipeline | |
| CN202791114U (en) | Air supply device expansion joint | |
| CN215522402U (en) | Internal reinforced three-way joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |