CN203797226U - Large-diameter non-metal expansion joint - Google Patents
Large-diameter non-metal expansion joint Download PDFInfo
- Publication number
- CN203797226U CN203797226U CN201420181018.1U CN201420181018U CN203797226U CN 203797226 U CN203797226 U CN 203797226U CN 201420181018 U CN201420181018 U CN 201420181018U CN 203797226 U CN203797226 U CN 203797226U
- Authority
- CN
- China
- Prior art keywords
- expansion joint
- framework
- frame
- astragal
- metal expansion
- 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 - Lifetime
Links
- 229910052755 nonmetal Inorganic materials 0.000 title claims abstract description 13
- 241001061264 Astragalus Species 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 9
- 239000000428 dust Substances 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000032258 transport Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model relates to a large-diameter non-metal expansion joint. The expansion joint comprises a left framework, a right framework and a ring belt, wherein the right end of the left framework and the left end of the right framework are both provided with outward flanges; two ends of the ring belt are connected onto the flanges through compressing devices respectively; a step-shaped guide cylinder is arranged inside the left framework, the large end of the guide cylinder is connected onto the left framework, and the small end of the guide cylinder is arranged between the left framework and the right framework; an inner lining cylinder is arranged inside the right framework, one end of the inner lining cylinder is connected with the end part of the right framework, and the other end of the inner lining cylinder is arranged between the left framework and the right framework; the diameter of the small end of the guide cylinder is less than that of the inner lining cylinder, and the small end of the guide cylinder partially stretches into the inner lining cylinder. The expansion joint is reasonable in design, simple in structure and convenient to use, and can ensure sufficient radial displacement without increasing the overall size; meanwhile, the expansion joint can naturally shift downwards in use to exactly seal a crack, so that dust is effectively prevented from entering, and the service life of the expansion joint is prolonged.
Description
Technical field
The utility model relates to a kind of compensator, the especially a kind of non-metal expansion joint that large diameter pipeline connects, a kind of heavy caliber non-metal expansion joint specifically of being applicable to.
Background technique
Non-metal expansion joint belongs to the one of compensator, its material is mainly fabric, rubber, exotic material etc., because it has unique performance, and be widely used in fluid-transporting tubing and the equipment of the industries such as mine, metallurgy, electric power, cement, nuclear energy, petrochemical industry.At present, power plant's denitration is with economizer exit place due near boiler, and the feature such as when operation, water injection rate is large, the temperature difference is large, dust is many and pipeline is close, makes the compensation radial displacement of expansion joint herein large especially, and will can dust protection.Both at home and abroad for the large radial displacement expansion joint of this compensation universal method, be to adopt spar structures type expansion joint, still, spar structures type expansion joint is in the situation that bore is identical, its outside dimensions will form and accompany increase with radial displacement increase, bring difficulty to manufacture, transport and installation.And the dust-proof effect of this spar structures is bad, easily cause expansion joint to damage.
Summary of the invention
The purpose of this utility model is to provide a kind of heavy caliber non-metal expansion joint, can effectively overcome the deficiencies in the prior art, is ensureing under the prerequisite of enough radial displacements, and is increasing not significantly outside dimensions, is convenient to produce, transports and installs.Meanwhile, it also has good dust-proof effect, can extend the working life of expansion joint.
The technical solution of the utility model is:
A kind of heavy caliber non-metal expansion joint, comprise the left frame and the right frame that are tubular, and the astragal of being made by nonmetallic material, the right-hand member of described left frame and the left end of described right frame are equipped with outside flange, and the two ends of described astragal are connected on above-mentioned flange by hold down gag; In described left frame, be provided with stair-stepping guide shell, its large end is connected in left frame, and small end is placed between left and right framework; In described right frame, be provided with an inside lining sleeve, its one end is connected to right frame end, and the other end is placed between left and right framework; The diameter of described guide shell small end is less than the diameter of described inside lining sleeve, and its part is extend in this inside lining sleeve.
Further, described hold down gag comprises pressing plate and bolt.
Further, in the flange enclosed space of described astragal and left and right framework, be filled with heat insulating stuffing, can prevent that astragal is excessively heated.
Further, on the left and right framework in described astragal outside, be installed with respectively somely to otic placode, and between every a pair of otic placode, by the affixed pull bar of nut, can prevent from deforming in transportation process.
The beneficial effects of the utility model:
The utility model time is reasonable, simple in structure, easy to use, in the time being applied to large diameter pipeline connection, can not increase under the prerequisite of boundary dimension, ensures enough radial displacements, offers convenience to production, transport and installation.Meanwhile, this expansion joint naturally offseting downward in use, just can shutoff gap, effectively prevents entering of dust, the working life of extension device.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is the part enlarged view of the utility model.
Fig. 3 is the running state figure of the utility model.
Wherein: 1-left frame; 2-flange; 3-nut; 4-pull bar; 5-astragal hold down gag; 6-astragal; 7-heat insulating stuffing; 8-right frame; 9-guide shell; 10-inside lining sleeve; 11-otic placode.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 1, be an embodiment of a kind of heavy caliber non-metal expansion joint of the utility model, comprise the left frame 1 and the right frame 8 that are tubular, and be equipped with outside flange 2 at the right-hand member of this left frame 1 and the left end of right frame 8.On this left and right framework, be connected with an astragal 6.This astragal 6 is made up of nonmetallic material, and its two ends are connected on above-mentioned flange 2 by hold down gag 5.Described hold down gag 5 is pressing plate and nut, can be also other forms, so that installation and fastening.In described left frame 1, be provided with a stair-stepping guide shell 9, as shown in Figure 2, its large end is connected in left frame 1, and small end is placed between left and right framework; In described right frame 8, be provided with an inside lining sleeve 10, its one end is connected to right frame 8 ends, and the other end is placed between left and right framework, and itself and guide shell 9 are put in opposite directions.The diameter of described guide shell 9 small ends is less than the diameter of described inside lining sleeve 10, and this small end part is extend in this inside lining sleeve 10, make its can be in inside lining sleeve slightly upper and lower displacement.So, the utility model is ensureing, under the prerequisite of sufficient radial displacement, can also significantly to reduce outside dimensions L below 200mm, and this size of conventional expanded joint mostly exceedes 500mm, thereby greatly facilitates manufacture, transport and install.Meanwhile, in the time that reality is used, the residing joint of the utility model, is substantially all downward radial displacement, will make guide shell and inside lining sleeve laminating, as shown in Figure 3, can seal space between the two, prevents entering of dust.In flange 2 enclosed spaces of described astragal 6 and left and right framework, be also filled with heat insulating stuffing 7, can prevent that astragal 6 is excessively heated.Further, on the left and right framework in described astragal 6 outsides, be installed with respectively somely to otic placode 11, and between every a pair of otic placode 11, by the affixed pull bar 4 of nut 3, can prevent from deforming in transportation process.
The utility model does not relate to partly all prior aries that maybe can adopt same as the prior art to be realized.
Claims (4)
1. a heavy caliber non-metal expansion joint, comprise the left frame and the right frame that are tubular, and the astragal of being made by nonmetallic material, it is characterized in that the right-hand member of described left frame and the left end of described right frame are equipped with outside flange, the two ends of described astragal are connected on above-mentioned flange by hold down gag; In described left frame, be provided with stair-stepping guide shell, its large end is connected in left frame, and small end is placed between left and right framework; In described right frame, be provided with an inside lining sleeve, its one end is connected to right frame end, and the other end is placed between left and right framework; The diameter of described guide shell small end is less than the diameter of described inside lining sleeve, and its part is extend in this inside lining sleeve.
2. heavy caliber non-metal expansion joint according to claim 1, is characterized in that described hold down gag comprises pressing plate and bolt.
3. heavy caliber non-metal expansion joint according to claim 1, is characterized in that being filled with heat insulating stuffing in the flange enclosed space of described astragal and left and right framework.
4. heavy caliber non-metal expansion joint according to claim 1, it is characterized in that being installed with respectively on the left and right framework in described astragal outside some to otic placode, and between every a pair of otic placode, by the affixed pull bar of nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420181018.1U CN203797226U (en) | 2014-04-15 | 2014-04-15 | Large-diameter non-metal expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420181018.1U CN203797226U (en) | 2014-04-15 | 2014-04-15 | Large-diameter non-metal expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203797226U true CN203797226U (en) | 2014-08-27 |
Family
ID=51379436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420181018.1U Expired - Lifetime CN203797226U (en) | 2014-04-15 | 2014-04-15 | Large-diameter non-metal expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203797226U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099413A (en) * | 2018-09-28 | 2018-12-28 | 江阴德耐特重工科技有限公司 | A kind of high-temperature acidic flue gas economizer prevents swollen support construction |
| CN112113054A (en) * | 2020-10-14 | 2020-12-22 | 诸暨市沣泽动力机械有限公司 | Brand-new non-metal expansion joint at outlet of high-grade gas turbine |
| CN112128499A (en) * | 2020-10-16 | 2020-12-25 | 诸暨市沣泽动力机械有限公司 | Novel heavy-duty combustion engine nonmetal expansion joint |
-
2014
- 2014-04-15 CN CN201420181018.1U patent/CN203797226U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099413A (en) * | 2018-09-28 | 2018-12-28 | 江阴德耐特重工科技有限公司 | A kind of high-temperature acidic flue gas economizer prevents swollen support construction |
| CN109099413B (en) * | 2018-09-28 | 2023-12-15 | 江阴德耐特重工科技有限公司 | High temperature acid flue gas economizer prevents supporting structure that expands |
| CN112113054A (en) * | 2020-10-14 | 2020-12-22 | 诸暨市沣泽动力机械有限公司 | Brand-new non-metal expansion joint at outlet of high-grade gas turbine |
| CN112128499A (en) * | 2020-10-16 | 2020-12-25 | 诸暨市沣泽动力机械有限公司 | Novel heavy-duty combustion engine nonmetal expansion joint |
| CN112128499B (en) * | 2020-10-16 | 2023-08-29 | 诸暨市沣泽动力机械有限公司 | Novel nonmetal expansion joint of heavy-duty gas turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |