CN102230560B - Slag-dropping pipe expansion joint - Google Patents
Slag-dropping pipe expansion joint Download PDFInfo
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- CN102230560B CN102230560B CN 201110174512 CN201110174512A CN102230560B CN 102230560 B CN102230560 B CN 102230560B CN 201110174512 CN201110174512 CN 201110174512 CN 201110174512 A CN201110174512 A CN 201110174512A CN 102230560 B CN102230560 B CN 102230560B
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Abstract
The invention discloses a slag-dropping pipe expansion joint which is vertically arranged between a slagging pipe and a slag-dropping pipe and comprises a top plate, a clapboard, a bottom plate, a temperature conservation material, a corrugated pipe, an inner pipe and an outer connecting pipe, wherein the top plate is installed on the outer wall of the slagging pipe in series and is used for seal connection; a bottom end opening of the slagging pipe is exposed from a through hole of the bottom plate; two end surfaces of the bottom plate are respectively connected with an inner pipe upward and the slag-dropping pipe downward; and the opposite surfaces of the top plate and the bottom plate are respectively connected with the outer connecting pipe and the corrugated pipe in a sealing mode to form an elastic compensation structure. The clapboard is covered on an upper end opening of the inner pipe, an inner hole of the clapboard is clearance fit with the outer wall of the slagging pipe; the clapboard separates an inner cavity of the compensation structure and a slagging cavity, flexible temperature conservation materials are arranged in the inner cavity of the compensation structure, the compensation effect of the corrugated pipe is not influenced, and the heat protection of the corrugated pipe is formed. According to the invention, the slagging pipe is connected by adopting a full-seal structure, no dust over flees in furnace slag discharging, and the working environment is improved greatly.
Description
Technical field
The present invention relates to a kind of pipe safety device, specifically, the present invention relates to a kind of slag dropping tube expansion joint that thermal power plant boiler is drained slag that is used for.
Background technique
The slag that thermal power plant boiler is discharged is exported by the metal scum pipe usually; Because the slag temperature of fresh baked thorax is very high; Cause scum pipe to be heated and produce bigger axial and radial displacement; And boiler shutdown and play a stove and will produce bigger axial displacement, cause scum pipe and the slag dropping tube can not location and installation thus.Existing technology adopts floating connecting structure to realize the flexible docking of scum pipe and slag dropping tube, guarantees that high temperature furnace slag exports in order.Existing floating connecting structure must be reserved enough big gap, could satisfy the flexible docking of scum pipe and slag dropping tube.But preset clearance must reduce the sealability of floating connecting structure, and dust is overflowed from preset clearance during the grate furnace slag, and the dust severe contamination working environment that floats is unfavorable for that the operator's is healthy.
Summary of the invention
The present invention is primarily aimed at the deficiency of existing technology floating connecting structure, propose a kind of simple in structure, connect reliable, absorb that displacement capacity is strong, the slag dropping tube expansion joint of good sealing effect.
The present invention realizes technical goal through following technical proposals.
The slag dropping tube expansion joint is located between the perpendicular scum pipe of putting and slag dropping tube, and it comprises top board, dividing plate, base plate, thermal insulating material, bellows, interior pipe and externally connected pipe.Said top board is the circular plate of upper surface peripheral hardware floor; Insert in the scum pipe slave plate face through hole placed in the middle and be tightly connected; The scum pipe bottom nozzle exposes from base plate plate face through hole placed in the middle, and both ends of the surface are tightly connected respectively up about the base plate interior pipe and slag dropping tube down constitute the slag chamber that falls.The externally connected pipe that on top board and base plate opposing side, is tightly connected respectively and bellows constitute the elastic compensating structure.Its improvements are: said inner tube diameter is greater than scum pipe external diameter 20%～50%, and interior pipe upper-end surface is positioned at the axial middle section of bellows.Said dividing plate is for there being the hole circle flat plate; The radial displacement that its external diameter is bigger 1～3 times than interior external diameter of pipe; Reserve 2mm～5mm gap between endoporus and the scum pipe, dividing plate covers port formation radial floating structure on inner pipe, also the collocation structure inner chamber and the slag chamber that falls is separated simultaneously.Said thermal insulating material plug is contained in the collocation structure inner chamber, constitutes insulating structure and inner filter dirt structure to bellows.
As further improvement, the inner tube diameter in the said structure is greater than scum pipe external diameter 30%～40%, and the radial displacement that the dividing plate external diameter is bigger 2 times than interior external diameter of pipe, used thermal insulating material are the alumina silicate heat-preservation cotton that contains zirconium.
The present invention compared with prior art has following good effect:
1, use bellows collocation structure and dividing plate radial floating structure, it is strong to absorb displacement capacity, eliminates internal stress automatically;
2, built-in flexibly thermal insulation material does not influence the bellows compensating action, constitutes the Thermal Protection Structural to bellows yet, constitutes inner filter dirt structure simultaneously yet;
3, the bellows collocation structure is an all-sealed structure, and no dust is overflowed, and has improved working environment greatly;
4, be that the expansion joint and the scum pipe of main member connects and composes flexible structure by bellows, effect of vibration and noise reduction is good.
Description of drawings
Fig. 1 is a structural profile schematic representation of the present invention.
Embodiment
According to accompanying drawing and combine embodiment, the present invention is described further below.
Slag dropping tube expansion joint shown in Figure 1 is located between the perpendicular scum pipe of putting 8 and slag dropping tube 9, and it comprises top board 1, dividing plate 2, base plate 3, thermal insulating material 4, bellows 5, interior pipe 6 and externally connected pipe 7.Said top board 1 is the circular plate of upper surface peripheral hardware floor 1.1; Insert on the outer wall in the scum pipe 8 slave plate faces through hole placed in the middle and also be tightly connected; Scum pipe 8 bottom nozzles expose from base plate 3 plate faces through hole placed in the middle; The base plate 3 upper-end surfaces interior pipe 6 up that is tightly connected, the base plate 3 lower end surfaces slag dropping tube 9 down that is tightly connected, interior pipe 6 is the slag chamber that falls with the cavity that slag dropping tube 8 contains.The externally connected pipe 7 that on top board 1 and base plate 3 opposing sides, is tightly connected respectively and bellows 5 constitute the elastic compensating structures.Pipe 6 internal diameters are greater than 30% of scum pipe 8 external diameters in the present embodiment, and interior pipe 6 upper-end surfaces are positioned at bellows 5 axial middle sections.Said dividing plate 2 is for there being the hole circle flat plate, and its external diameter is reserved the 3mm gap than the big 2 times radial displacement of interior pipe 6 external diameters between endoporus and the scum pipe 8.Dividing plate 2 covers in interior pipe 6 upper end-hole, and its radial position is floated.In addition, dividing plate 2 another effects are that the collocation structure inner chamber and the slag chamber that falls are separated.Built-in heat insulation material 4 in the collocation structure inner chamber, thermal insulating material 4 is the alumina silicate heat-preservation cotton that contain zirconium in the present embodiment, this thermal insulating material 4 is a kind of flexible materials, does not influence the compensating action of bellows 5, also constitutes the heat protection to bellows 5.When scum pipe 8 produces displacement, promote or the 5 realization axial displacement compensation of stretching bellows through top board 1, also can make radial compensation through bellows 5 and dividing plate 2.Gap location between dividing plate 2 and scum pipe 8 outer walls is positioned in thermal insulating material 4 block in the compensation inner chamber, and dust does not escape.
The present invention adopts all-sealed structure to connect scum pipe 8, does not have dust during the grate furnace slag and escapes, and has improved working environment greatly.In addition, connect and compose flexible structure by bellows 5 for the expansion joint of main member and scum pipe 8, effect of vibration and noise reduction is good, connects very reliable.
Claims (3)
1. a slag dropping tube expansion joint is located between the perpendicular scum pipe of putting (8) and slag dropping tube (9), and it comprises top board (1), dividing plate (2), base plate (3), thermal insulating material (4), bellows (5), interior pipe (6) and externally connected pipe (7); Said top board (1) is the circular plate of upper surface peripheral hardware floor (1.1); Insert in scum pipe (8) the slave plate face through hole placed in the middle and be tightly connected; Scum pipe (8) bottom nozzle exposes from base plate (3) plate face through hole placed in the middle, and base plate (3) the interior pipe (6) and the slag dropping tube down (9) that are tightly connected respectively up of both ends of the surface up and down constitutes the slag chamber that falls; The externally connected pipe (7) that on top board (1) and base plate (3) opposing side, is tightly connected respectively and bellows (5) constitute the elastic compensating structure; It is characterized in that: pipe (6) internal diameter is greater than scum pipe (8) external diameter 20%～50% in said, and interior pipe (6) upper-end surface is positioned at axially middle section of bellows (5); Said dividing plate (2) is for there being the hole circle flat plate; Its external diameter is than big 1～3 times radial displacement of interior pipe (6) external diameter; Reserve 2mm～5mm gap between endoporus and the scum pipe (8), dividing plate (2) covers in interior pipe (6) upper end-hole and constitutes the radial floating structure, also the collocation structure inner chamber and the slag chamber that falls is separated simultaneously; Said thermal insulating material (4) plug is contained in the collocation structure inner chamber, constitutes insulating structure and inner filter dirt structure to bellows (5).
2. slag dropping tube expansion joint according to claim 1 is characterized in that: pipe (6) internal diameter is greater than scum pipe (8) external diameter 30%～40% in said, and dividing plate (2) external diameter is than the big 2 times radial displacement of interior pipe (6) external diameter.
3. slag dropping tube expansion joint according to claim 1 is characterized in that: said thermal insulating material (4) is for containing the alumina silicate heat-preservation cotton of zirconium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110174512 CN102230560B (en) | 2011-06-21 | 2011-06-21 | Slag-dropping pipe expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110174512 CN102230560B (en) | 2011-06-21 | 2011-06-21 | Slag-dropping pipe expansion joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102230560A CN102230560A (en) | 2011-11-02 |
| CN102230560B true CN102230560B (en) | 2012-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110174512 Active CN102230560B (en) | 2011-06-21 | 2011-06-21 | Slag-dropping pipe expansion joint |
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| CN (1) | CN102230560B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016889B (en) * | 2012-12-10 | 2014-07-02 | 南京晨光汉森柔性管有限公司 | Non-metal expansion joint for slag discharge pipeline of boiler |
| CN103307881B (en) * | 2013-06-09 | 2015-07-01 | 重庆长江造型材料（集团）股份有限公司 | Multi-section type roasting furnace provided with platform |
| CN103672279A (en) * | 2013-11-11 | 2014-03-26 | 长兴新城环保有限公司 | Expansion joint used at connecting position of bottom slag tube and slag cooler slag inlet tube |
| CN103912750B (en) * | 2014-03-28 | 2016-02-03 | 无锡华光锅炉股份有限公司 | A kind of expansion joint structure preventing material from playing a reversed role |
| CN103912749B (en) * | 2014-04-15 | 2016-06-29 | 南京宇行环保科技有限公司 | Detachable compensator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101093042A (en) * | 2007-06-18 | 2007-12-26 | 彩阳新材料制品（深圳）有限公司 | Expansion joint in use for pipeline in high temperature |
| CN201443755U (en) * | 2009-06-18 | 2010-04-28 | 马文强 | Labyrinth type expansion joint of slag discharge pipe of circulating fluidized bed boiler |
| CN201697122U (en) * | 2010-06-04 | 2011-01-05 | 青岛松灵电力环保设备有限公司 | Expansion joint |
| CN202109143U (en) * | 2011-06-21 | 2012-01-11 | 江苏远通波纹管有限公司 | Expansion joint of slag dropping tube |
-
2011
- 2011-06-21 CN CN 201110174512 patent/CN102230560B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101093042A (en) * | 2007-06-18 | 2007-12-26 | 彩阳新材料制品（深圳）有限公司 | Expansion joint in use for pipeline in high temperature |
| CN201443755U (en) * | 2009-06-18 | 2010-04-28 | 马文强 | Labyrinth type expansion joint of slag discharge pipe of circulating fluidized bed boiler |
| CN201697122U (en) * | 2010-06-04 | 2011-01-05 | 青岛松灵电力环保设备有限公司 | Expansion joint |
| CN202109143U (en) * | 2011-06-21 | 2012-01-11 | 江苏远通波纹管有限公司 | Expansion joint of slag dropping tube |
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| Publication number | Publication date |
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| CN102230560A (en) | 2011-11-02 |
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