CN206145273U - Wall pipe knitting expansion joint - Google Patents
Wall pipe knitting expansion joint Download PDFInfo
- Publication number
- CN206145273U CN206145273U CN201620803963.XU CN201620803963U CN206145273U CN 206145273 U CN206145273 U CN 206145273U CN 201620803963 U CN201620803963 U CN 201620803963U CN 206145273 U CN206145273 U CN 206145273U
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- CN
- China
- Prior art keywords
- wall pipe
- metal
- expansion joint
- insulating
- composite heat
- 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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Abstract
The utility model discloses a wall pipe knitting expansion joint, insulate against heat including nonmetal complex and manage, with metal flange on compound thermal -insulated upper end of managing of nonmetal and the brickwork board stationary, with the lower extreme of nonmetal compound thermal -insulated pipe is fixed lower metal flange on the wall pipe locates nonmetal compound thermal -insulated intraductal parcel is in interior heat preservation on the wall pipe sets up the last heat preservation in last metal flange, still be equipped with external thermal insulation layer between interior heat preservation and the nonmetal compound thermal -insulated pipe, external thermal insulation layer pass through metal pothook spare with go up heat preservation head and the tail fixed connection, external thermal insulation layer the strap along its axial winding, the one end of metal pothook spare hangs the strap, the other end with go up the metal flange welding. The utility model discloses can be after the wall pipe be heated, when wall pipe axial emergence displacement is followed to nonmetal compound thermal -insulated intraductal heat preservation, avoid nonmetal compound thermal -insulated the pipe to be heated, prolong the life of expansion joint.
Description
Technical field
The utility model is related to non-metal expansion joint, more particularly to a kind of nonmetallic expansion for being sleeved on wall pipe periphery
Section.
Background technology
As shown in figure 1, the structure that the pipe expansion joint through walls that boiler tube setting is depended in prior art is adopted is to wear
One layer of intermediate insulating layer 3 is directly wrapped up in the periphery of wall coil 5, and the periphery set of intermediate insulating layer 3 is filled with nonmetallic composite heat-insulating 1, so
The upper and lower side of nonmetallic composite heat-insulating 1 is fixed respectively by press strip 8 with upper metal flange 2 and lower metal flange 6 afterwards, upper gold
Category flange 2 and lower metal flange 6 are fixed on wall pipe 5, interior also filling heat insulating wall 4 of upper metal flange 2, and upper metal flange 2
Positioned at the side of furnace wall plate 7, insulation purpose is reached with this.
As shown in Fig. 2 when equipment runs, wall pipe 5 will be shifted over along its axial direction, nonmetallic composite heat-insulating 1
Directly by intermediate insulating layer 3 wrap up wall pipe 5, when wall pipe 5 is subjected to displacement, in nonmetallic composite heat-insulating 1 in
Between heat-insulation layer 3 will move down with the displacement of wall pipe 5, cause intermediate insulating layer 3 and the metal in nonmetallic composite heat-insulating 1
There is gap between heat-insulation layer 4 in flange 2, the nonmetallic composite heat-insulating 1 of outside will be made directly by the high temperature spoke of wall pipe 5
Penetrate, cause the surface temperature superelevation of nonmetallic composite heat-insulating 1, it is easily damaged at high operating temperatures for a long time and lose insulation effect,
Reduction of service life, increase maintenance cost.
The content of the invention
The utility model is in order to solve existing problem, there is provided a kind of wall pipe braid expansion joint.A kind of wall pipe is compiled
Double fabric expansion joint, including nonmetallic composite heat-insulating, the upper metal that the upper end of nonmetallic composite heat-insulating and furnace wall plate are fixed
Flange, the lower metal flange lower end of the nonmetallic composite heat-insulating being fixed on the wall pipe, located at the non-gold
The inner thermal insulating layer being wrapped in category composite heat-insulating on the wall pipe, the upper heat-insulation layer being arranged in metal flange is described
Be additionally provided with external thermal insulation between inner thermal insulating layer and nonmetallic composite heat-insulating, the external thermal insulation by metal card hook part with it is described
Upper heat-insulation layer head and the tail are fixedly connected, and the external thermal insulation is wrapped metal tape along its axial direction, and one end of the metal card hook part hangs
Metal tape is stated in residence, and the other end is welded with the upper metal flange.
Preferably, the metal card hook part includes a C-shaped steel hook and a L-shaped steel hook, the C-shaped steel hook and the metal tape
Mutually mount, one end of the L-shaped steel hook is welded on the inwall of metal flange, and the other end is welded with the C-shaped steel hook.
In the technical program, the metal tape can be stainless steel band.The upper and lower side of the nonmetallic composite heat-insulating
It is connected with the upper metal flange and lower metal flange by clip respectively.The nonmetallic composite heat-insulating is by least two stratas
Tetrafluoroethene, at least one of which glass fibre, at least one of which ceramic fibre permutation and combination are laminated, the nonmetallic compound heat-insulation
The edge of pipe is provided with bound edge, and the bound edge is made using ceramic fibre.Radial direction after the inner thermal insulating layer and external thermal insulation superposition
Thickness is consistent with the radial thickness of the upper heat-insulation layer.The axial length of the external thermal insulation is described after being heated more than wall pipe
Axial displacement of the inner thermal insulating layer relative to upper heat-insulation layer.
Then the utility model is passed through by increased one layer of external thermal insulation below the upper heat-insulation layer of upper metal flange
L-type and C-type steel hook and metal tape are fixedly connected it with upper metal flange, solve wall pipe be heated displacement when, interior guarantor
Warm layer is moved down with wall pipe displacement causes outside nonmetallic composite heat-insulating directly to produce overtemperature by wall pipe hyperthermia radiation
Phenomenon, reduce hot driving, improve the working environment of other equipment in region area, and increased the use longevity of expansion joint
Life, has saved cost.
Description of the drawings
Fig. 1 is the structural representation of prior art expansion joint；
Fig. 2 is the structural representation of expansion joint after prior art wall pipe is heated；
Fig. 3 is the structural representation of the utility model expansion joint；
Fig. 4 is the structural representation of expansion joint after the utility model wall pipe is heated；
Fig. 5 is the sectional view of the nonmetallic composite heat-insulating of the utility model.
Specific embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings.
As shown in figure 3, the wall pipe braid expansion joint that a preferred embodiment of the present utility model is proposed, its part includes
Nonmetallic composite heat-insulating 1, upper metal flange 2, lower metal flange 6, upper heat-insulation layer 4, inner thermal insulating layer 30 and external thermal insulation 31, card
Hoop 8, C-shaped steel hook 9 and L-shaped steel hook 10, metal tape 11.
Nonmetallic composite heat-insulating 1 is enclosed within that wall pipe 5 is peripheral, and its upper end is fixed by a clip 8 with upper metal flange 2
In the side of furnace wall plate 7, its lower end is fixed by a clip 8 with lower metal flange 6, and in upper metal flange 2 heat-insulation layer 4 is provided with
It is wrapped in wall pipe 5 peripheral, inner thermal insulating layer 30 and external thermal insulation 31 are layered in nonmetallic composite heat-insulating 1, are wrapped through walls
Pipe 5 is located at the part in nonmetallic composite heat-insulating 1.The radial thickness of inner thermal insulating layer 30 and external thermal insulation 31 after stacking with it is upper
The radial thickness of heat-insulation layer 4 is substantially consistent.Axially along direction is wrapped metal tape 11 on external thermal insulation 31, these gold
Category band 11 is welded to each other to form metal card hook part in spring-like or helical form, C-shaped steel hook 9 and L-shaped steel hook 10, metal card hook part
One end tangles the metal tape 11 of the end of external thermal insulation 31, and the other end is welded with upper metal flange, makes heat-insulation layer 4 and external thermal insulation
Layer 31 forms end to end effect.When implementing, metal tape 11 is tangled by C-shaped steel hook 9, then the one of L-shaped steel hook 10
End is welded on the inwall of metal flange 2, and the other end is welded with C-shaped steel hook 9.
As shown in figure 4, when equipment runs, the temperature of wall pipe 5 rises, and wall pipe 5 will be axially displaced along its, this
When, the inner thermal insulating layer 30 being directly wrapped on wall pipe and lower metal flange 6 also can be with being subjected to displacement together, due to external thermal insulation
Layer 31 is fixed by metal card hook part with upper metal flange 2, therefore, the end one of the end of external thermal insulation 31 and upper heat-insulation layer 4
It is straight to keep closely connection, will not move, still play a part of to be incubated wall pipe, while preventing nonmetallic composite bed
Directly by the hyperthermia radiation of wall pipe.
Nonmetallic composite heat-insulating is fine by least two-layer polytetrafluoroethylene (PTFE), at least one of which glass fibre, at least one of which ceramics
Dimension permutation and combination is laminated, and the edge of the nonmetallic composite heat-insulating is provided with bound edge, and the bound edge adopts ceramic fibre system
Into.As shown in figure 5, in the present embodiment, nonmetallic composite heat-insulating 1 by one layer of 0.8mm 11, one layer of teflon cloth
14, one layer of the glass fibre cotton of 13, one layer of 20mm of poly tetrafluoroethylene of 12, one layer of 0.3mm of alkali-free glass fiber cloth of 0.8mm
The ceramic fiber cloth 16 of 15, one layer of 0.3mm of alkali-free glass fiber cloth of 0.8mm is stacked gradually and formed, and is then provided with edge
The ceramic fiber cloth bound edge 17 of 12mm.
In the present embodiment, metal tape adopts stainless steel band, naturally it is also possible to made using other metals.External thermal insulation
Axial length is equal with the axial length of inner thermal insulating layer, as long as inner thermal insulating layer is relative to upper heat-insulation layer after being heated more than wall pipe
Axial displacement.Metal card hook part can also be also not necessarily limited to the number of its part composition, it is only necessary to gold using other shapes
One end of category card hook part can tangle metal tape and the other end can weld with upper metal flange.
Only to illustrate design of the present utility model, one of ordinary skill in the art's specific embodiment above exists
Various deformation and change can be made under design of the present utility model, these deformations and change are included in guarantor of the present utility model
Within the scope of shield.
Claims (7)
1. a kind of wall pipe braid expansion joint, including nonmetallic composite heat-insulating, by the upper end of nonmetallic composite heat-insulating with
The upper metal flange that furnace wall plate is fixed, the lower metal lower end of the nonmetallic composite heat-insulating being fixed on the wall pipe
Flange, the inner thermal insulating layer being wrapped in the nonmetallic composite heat-insulating on the wall pipe, is arranged on metal flange
Interior upper heat-insulation layer, it is characterised in that external thermal insulation is additionally provided between the inner thermal insulating layer and nonmetallic composite heat-insulating, it is described
External thermal insulation is fixedly connected by metal card hook part with the upper heat-insulation layer head and the tail, and the external thermal insulation is wrapped gold along its axial direction
Category band, one end of the metal card hook part tangles the metal tape, and the other end is welded with the upper metal flange.
2. wall pipe braid expansion joint as claimed in claim 1, it is characterised in that the metal card hook part includes a C-shaped
Steel hook and a L-shaped steel hook, the C-shaped steel hook is mutually mounted with the metal tape, and one end of the L-shaped steel hook is welded on metal method
On blue inwall, the other end is welded with the C-shaped steel hook.
3. wall pipe braid expansion joint as claimed in claim 1, it is characterised in that the metal tape is stainless steel band.
4. wall pipe braid expansion joint as claimed in claim 1, it is characterised in that the nonmetallic composite heat-insulating it is upper
Lower end is connected respectively by clip with the upper metal flange and lower metal flange.
5. wall pipe braid expansion joint as claimed in claim 1, it is characterised in that nonmetallic composite heat-insulating is by least two
Strata tetrafluoroethene, at least one of which glass fibre, at least one of which ceramic fibre permutation and combination are laminated, described nonmetallic compound
The edge of instlated tubular is provided with bound edge, and the bound edge is made using ceramic fibre.
6. the wall pipe braid expansion joint as described in claim 1 to 5 any one claim, it is characterised in that described
Radial thickness after inner thermal insulating layer and external thermal insulation superposition is consistent with the radial thickness of the upper heat-insulation layer.
7. the wall pipe braid expansion joint as described in claim 1 to 5 any one claim, it is characterised in that described
The axial length of the external thermal insulation axial displacement of the inner thermal insulating layer relative to upper heat-insulation layer after being heated more than wall pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620803963.XU CN206145273U (en) | 2016-07-28 | 2016-07-28 | Wall pipe knitting expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620803963.XU CN206145273U (en) | 2016-07-28 | 2016-07-28 | Wall pipe knitting expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206145273U true CN206145273U (en) | 2017-05-03 |
Family
ID=58617424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620803963.XU Expired - Fee Related CN206145273U (en) | 2016-07-28 | 2016-07-28 | Wall pipe knitting expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206145273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345331A (en) * | 2019-08-14 | 2019-10-18 | 南京晨光东螺波纹管有限公司 | A kind of nuclear island gate expansion joint |
-
2016
- 2016-07-28 CN CN201620803963.XU patent/CN206145273U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345331A (en) * | 2019-08-14 | 2019-10-18 | 南京晨光东螺波纹管有限公司 | A kind of nuclear island gate expansion joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170503 Termination date: 20190728 |
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| CF01 | Termination of patent right due to non-payment of annual fee |