CN202149487U - Fixing device for hollow hanging pipe and pipe clamp of built-out bed of circulating fluidized bed boiler - Google Patents
Fixing device for hollow hanging pipe and pipe clamp of built-out bed of circulating fluidized bed boiler Download PDFInfo
- Publication number
- CN202149487U CN202149487U CN201120226650U CN201120226650U CN202149487U CN 202149487 U CN202149487 U CN 202149487U CN 201120226650 U CN201120226650 U CN 201120226650U CN 201120226650 U CN201120226650 U CN 201120226650U CN 202149487 U CN202149487 U CN 202149487U
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- China
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- pipe
- heating surface
- snap ring
- hollow swing
- hollow hanging
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Abstract
The utility model discloses a fixing device for a hollow hanging pipe and pipe clamps of a built-out bed of a circulating fluidized bed boiler, which comprises the hollow hanging pipe and a plurality of pipe clamps matched with a heating-surface elbow pipe in the built-out bed. The plurality of pipe clamps are respectively arranged above and under a bend of the heating-surface elbow pipe. Each pipe clamp comprises a snap ring, a pipeline clamp groove and an arc-shaped clamp piece, wherein the snap ring, the pipeline clamp groove and the arc-shaped clamp piece are integrated. All the snap rings of the pipe clamps are sleeved on the hollow hanging pipe, a ring is arranged between each two adjacent snap rings arranged above the bend of the heating-surface elbow pipe, and all the rings are sleeved on the hollow hanging pipe and fixedly connected with the snap rings at two ends by welding, another ring is arranged between each two adjacent snap rings arranged under the bend of the heating-surface elbow pipe, and all the rings are sleeved on the hollow hanging pipe and fixedly connected with the snap rings at two ends by welding, the first snap ring arranged under the bend of the heating-surface elbow pipe is further fixedly connected with a locating ring above the bend of the heating-surface elbow pipe by welding, and the locating ring is further fixedly connected with the hollow hanging pipe by welding. The fixing device for the hollow hanging pipe and the pipe clamps of the built-out bed of the circulating fluidized bed boiler can avoid large abrasion between the pipe clamps and the hollow hanging pipe and shutdown so as to guarantee continuousness of production and service life of equipment.
Description
Technical field
The utility model relates to a kind of hollow swing pipe of CFBB external bed heating surface suspention and fixed structure of pipe clamp of being used for.
Background technology
Be provided with heating surface in the CFBB external bed of using at present, heating surface is made up of several bend pipes, feeds the steam that needs heating in the bend pipe; The heating surface of external bed high-temperature region is suspended in the external bed top through hollow swing pipe, and several pipe clamps are housed on hollow swing pipe, and pipe clamp lays respectively at the elbow above and below of heating surface bend pipe; Each pipe clamp includes snap ring, pipeline draw-in groove and the arc card that is connected as a single entity, and the snap ring of all pipe clamps all is placed on the hollow swing pipe, and snap ring and hollow swing pipe are the gap and are provided with; The upper and lower of every heating surface bend pipe lays respectively between the pipeline draw-in groove and arc card of pipe clamp separately, thereby is positioned, but is not connected between pipe clamp and the hollow swing pipe; During work, because the mobile and impact of high velocity vapor in the heating surface bend pipe adds that the bed material in the external bed is rolling of fluidisation shape; The capital makes the heating surface bend pipe produce vibration, thereby the snap ring that drives pipe clamp vibrates on hollow swing pipe, and snap ring and hollow swing pipe produce friction, bump; Cause snap ring and hollow swing pipe to wear and tear each other, when the snap ring serious wear, it is big that the Oscillation Amplitude of heating surface bend pipe will become; Must in time shut down and change pipe clamp, otherwise pipe clamp possibly break and cause the pipe group to disintegrate, in case hollow swing pipe serious wear; Steam in the hollow swing pipe can leak, and can't bear the weight of heating surface bend pipe, will cause collapsing of heating surface bend pipe; Must not on-line maintenance, shortened the service life of equipment.
The utility model content
The purpose of the utility model is the above-mentioned deficiency that exists to prior art; The hollow swing pipe pipe clamp of a kind of CFBB external bed fixed structure is provided; It can prevent that pipe clamp and hollow swing pipe from producing bigger wearing and tearing; Avoid the shutdown that causes because of the wearing and tearing of hollow swing pipe and pipe clamp, thus the continuity that guarantees to produce and the service life of equipment.
For achieving the above object; The hollow swing pipe pipe clamp of the CFBB external bed fixed structure of the utility model; Comprise hollow swing pipe, several pipe clamps that cooperate with the interior heating surface bend pipe of external bed; Several pipe clamps lay respectively at the elbow above and below of heating surface bend pipe, and each pipe clamp includes snap ring, pipeline draw-in groove and the arc card that is connected as a single entity, and the snap ring of all pipe clamps all is placed on the hollow swing pipe; It is characterized in that all are equipped with annulus between adjacent two snap rings above the elbow of heating surface bend pipe, all annulus all are placed on the hollow swing pipe and connect firmly with the snap ring welding at two ends; Between adjacent two snap rings below the elbow of heating surface bend pipe, be equipped with annulus; All annulus all are placed on the hollow swing pipe and connect firmly with the snap ring welding at two ends; First snap ring that is positioned at the elbow below of heating surface bend pipe also connects firmly with the locating ring welding of its top, and this locating ring also connects firmly with hollow swing pipe welding.
During use; Because all snap rings that are positioned at the elbow top of heating surface bend pipe are connected as a single entity through annulus, when elbow top heating surface bend pipe produced vibration, the direction of vibration of each heating surface bend pipe and amplitude were all inconsistent; Condition each other between each heating surface bend pipe; Can significantly reduce the vibration of heating surface bend pipe, thereby reduce friction, the bump of snap ring and hollow swing pipe, reduce the wearing and tearing of snap ring and hollow swing pipe; The snap ring that is positioned at the elbow below of heating surface bend pipe is connected as a single entity through annulus, locating ring and hollow swing pipe; Mutual restriction between each heating surface bend pipe not only; When the heating surface bend pipe produces vibration; Hollow swing pipe and its synchronous vibration can prevent that pipe clamp and hollow swing pipe from producing friction, bump, prevents to produce wearing and tearing.In the use; The snap ring of elbow above and below and annulus are that the gap is provided with hollow swing pipe all; But free wxpansion between them has avoided between the two, producing bigger thermal stress, simultaneously no extra pad on the hollow swing pipe; Guaranteed the mechanical performance of hollow swing pipe, the collapsing and shutting down of the face bend pipe that keeps from heat.
In sum, the utility model can prevent that pipe clamp and hollow swing pipe from producing bigger wearing and tearing, avoids shutting down, thereby guarantees the continuity of production and the service life of equipment.
Description of drawings
Fig. 1 is the front view of utility model instance user mode.
Fig. 2 is the left view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed explanation.
As depicted in figs. 1 and 2; The hollow swing pipe pipe clamp of this CFBB external bed fixed structure; Comprise hollow swing pipe 1, several pipe clamps 2 that cooperate with heating surface bend pipe 8 in the external bed; Several pipe clamps 2 lay respectively at the elbow above and below of heating surface bend pipe 8, and each pipe clamp 2 includes snap ring 2a, pipeline draw-in groove 2b and the arc card 2c that is connected as a single entity, and the snap ring 2a of all pipe clamps 2 all is placed on the hollow swing pipe 1; All are equipped with annulus 3 between the adjacent two snap ring 2a above the elbow of heating surface bend pipe 8, all annulus 3 all are placed on the hollow swing pipe 1 and connect firmly with the snap ring 2a welding at two ends; Between the adjacent two snap ring 2a below the elbow of heating surface bend pipe 8, be equipped with annulus 4; All annulus 4 all are placed on the hollow swing pipe 1 and connect firmly with the snap ring 2a welding at two ends; First snap ring 2a that is positioned at the elbow below of heating surface bend pipe 8 also connects firmly with locating ring 5 welding of its top, and this locating ring 5 also connects firmly with hollow swing pipe 1 welding.
During use; Because all snap ring 2a that are positioned at the elbow top of heating surface bend pipe 8 are connected as a single entity through annulus 3, when elbow top heating surface bend pipe 8 produced vibration, the direction of vibration of each heating surface bend pipe 8 and amplitude were all inconsistent; Condition each other between each heating surface bend pipe 8; Can significantly reduce the vibration of heating surface bend pipe 8, thereby reduce friction, the bump of snap ring 2a and hollow swing pipe 1, reduce the wearing and tearing of snap ring 2a and hollow swing pipe 1; The snap ring 2a that is positioned at the elbow below of heating surface bend pipe 8 is connected as a single entity with hollow swing pipe 1 through annulus 4, locating ring 5, when the heating surface bend pipe 8 of elbow below produces vibration, and hollow swing pipe 1 and its synchronous vibration; Can prevent that pipe clamp 2 and hollow swing pipe 1 from producing friction, bump; Prevent to produce wearing and tearing, the snap ring 2a of elbow above and below and annulus 3,4 all are provided with for the gap with hollow swing pipe 1 simultaneously, but free wxpansion between them; Avoided between the two, producing bigger thermal stress; Guaranteed the mechanical performance of hollow swing pipe 1, the collapsing and shutting down of the face bend pipe 8 that keeps from heat, thereby the continuity that guarantees to produce and the service life of equipment.
Claims (1)
1. the hollow swing pipe pipe clamp of CFBB external bed fixed structure; Comprise hollow swing pipe, several pipe clamps that cooperate with the interior heating surface bend pipe of external bed; Several pipe clamps lay respectively at the elbow above and below of heating surface bend pipe; Each pipe clamp includes snap ring, pipeline draw-in groove and the arc card that is connected as a single entity; The snap ring of all pipe clamps all is placed on the hollow swing pipe, it is characterized in that all are equipped with annulus between adjacent two snap rings above the elbow of heating surface bend pipe, and all annulus all are placed on the hollow swing pipe and connect firmly with the snap ring welding at two ends; Between adjacent two snap rings below the elbow of heating surface bend pipe, be equipped with annulus; All annulus all are placed on the hollow swing pipe and connect firmly with the snap ring welding at two ends; First snap ring that is positioned at the elbow below of heating surface bend pipe also connects firmly with the locating ring welding of its top, and this locating ring also connects firmly with hollow swing pipe welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120226650U CN202149487U (en) | 2011-06-30 | 2011-06-30 | Fixing device for hollow hanging pipe and pipe clamp of built-out bed of circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120226650U CN202149487U (en) | 2011-06-30 | 2011-06-30 | Fixing device for hollow hanging pipe and pipe clamp of built-out bed of circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202149487U true CN202149487U (en) | 2012-02-22 |
Family
ID=45590545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120226650U Expired - Lifetime CN202149487U (en) | 2011-06-30 | 2011-06-30 | Fixing device for hollow hanging pipe and pipe clamp of built-out bed of circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202149487U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797911A (en) * | 2012-06-26 | 2012-11-28 | 哈尔滨锅炉厂有限责任公司 | Serpentine pipe hanging device for narrow-gap coal economizer |
-
2011
- 2011-06-30 CN CN201120226650U patent/CN202149487U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797911A (en) * | 2012-06-26 | 2012-11-28 | 哈尔滨锅炉厂有限责任公司 | Serpentine pipe hanging device for narrow-gap coal economizer |
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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 |
Granted publication date: 20120222 |
|
| CX01 | Expiry of patent term |