CN203010030U - Blow-down pipe provided with spoiler fins and used for pipe emptying - Google Patents
Blow-down pipe provided with spoiler fins and used for pipe emptying Download PDFInfo
- Publication number
- CN203010030U CN203010030U CN 201220585143 CN201220585143U CN203010030U CN 203010030 U CN203010030 U CN 203010030U CN 201220585143 CN201220585143 CN 201220585143 CN 201220585143 U CN201220585143 U CN 201220585143U CN 203010030 U CN203010030 U CN 203010030U
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- CN
- China
- Prior art keywords
- blow
- barrel body
- cylindrical shell
- down pipe
- diameter
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- Expired - Fee Related
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Abstract
The utility model relates to a blow-down system of a natural gas conveying pipeline, and particularly relates to a blow-down pipe provided with spoiler fins and used for pipe emptying. A barrel body of the blow-down pipe comprises a barrel body I, a barrel body II and a barrel body III from bottom to top, wherein the diameter of the barrel body I is greater than that of the barrel body II, and the barrel body I is connected with the barrel body II through a reducer I. The diameter of the barrel body II is greater than that of the barrel body III, and the barrel body II is connected with the barrel body III through a reducer II. The spiral fins are welded on the upper portion, with the height one third of that of the barrel body, of the barrel body. A hand hole and a drain outlet are installed at the lower end of the barrel body. According to the blow-down pipe provided with the spoiler fins and used for the pipe emptying, pull ropes of a prior blow-down pipe are cancelled, a large occupied area is reduced, safe and reliable work of the blow-down pipe is guaranteed, and the anti-vibration effect is good. The shortcomings that the pull ropes are adopted to fix the existing blow-down pipe, and the pull ropes are large in occupied area and poor in the anti-vibration effect are overcome.
Description
Technical field:
The utility model relates to a kind of blowdown system of transport gas pipeline, particularly a kind of blow-down pipe with the flow-disturbing fin for exhausting pipeline.
Background technique:
Each field, station or each valve chamber in Long-distance Transmission Pipeline all need arrange blow-down pipe, with under pipeline superpressure, maintenance and accident condition, are convenient to emptying.The major function of blow-down pipe is when pipeline maintenance and pipeline generation breakage, reduces as far as possible rock gas loss and Accident prevention and occurs, and does not affect the normal operation that other are respectively stood simultaneously.The drawback that existing blow-down pipe exists is as follows: blow-down pipe is mostly the equipment that caliber is smaller, higher, slenderness ratio is larger.Under the effect of wind load, easily produce crooked and resonance.Under wind load action, about 10m of generally being above the ground level has just reached critical wind velocity and namely can produce resonance, and wave in wind at the blow-down pipe top of namely seeing at ordinary times.Can meet the demands although calculating strength is stable, should resonance can cause the fatigue cracking of blow-down pipe weld joint.Generally, conventional blow-down pipe is all uniformly on the circumference at 1/3rd places, left and right, top to add three bracing wire ropes, and bracing wire fixes on the ground, has so just solved the excessive problem of blow-down pipe flexibility.But the blow-down pipe height is higher, and himself flexibility is larger, and required bracing wire rope is longer, and floor space is larger, and in long distance pipeline, a lot of blow-down pipes will be set, and needs requisition a large amount of soils, virtually increases great amount of investment.The riding position of blow-down pipe needs again certain safe distance, and sometimes bracing wire will cross the outside of enclosure wall, is not easy to manage more not attractive in appearance.
The model utility content:
The technical problems to be solved in the utility model is to provide a kind of blow-down pipe with the flow-disturbing fin for exhausting pipeline, and this device has realized cancelling the bracing wire rope of former blow-down pipe, reduces a large amount of floor spaces, guarantees the blow-down pipe safe and stable operation, and vibration-isolating effect is good.Overcome existing blow-down pipe and adopted the bracing wire rope to fix, bracing wire rope floor space is large, the deficiency that vibration-isolating effect is poor.
Technical solution adopted in the utility model is: a kind of blow-down pipe with the flow-disturbing fin for exhausting pipeline comprises base plate, skirt, end socket, Imported gas and cylindrical shell; Cylindrical shell comprises cylindrical shell I, cylindrical shell II and cylindrical shell III from bottom to up, the diameter of cylindrical shell I is connected by the reducer I greater than the diameter of cylindrical shell II simultaneously between the two, the diameter of cylindrical shell II is connected by the reducer II greater than the diameter of cylindrical shell III simultaneously between the two, the position welding spiral fin of 1/3rd height on cylindrical shell top is equipped with hand hole and sewage draining exit in the cylindrical shell lower end.
A number of spiral fin is 3, stagger each other 180 the degree angle.
The width of spiral fin is 0.1 times of barrel diameter of spiral fin present position.
The beneficial effects of the utility model are: the utility model is owing to having adopted the mode of setting up the turbulence device, thereby has advantages of the bracing wire rope of cancelling former blow-down pipe, reduce a large amount of floor spaces, save investment, convenient operation administers and maintains, guarantee the blow-down pipe safe and stable operation, vibration-isolating effect is good; Owing to having adopted in the cylindrical shell lower end, the mode of hand hole is installed, thereby has the function of being convenient to take out the foreign material such as bottom dust storm, be conducive to bottom blow-down.
Description of drawings:
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Accompanying drawing is structural representation of the present utility model.
Embodiment:
As shown in drawings, a kind of blow-down pipe with the flow-disturbing fin for exhausting pipeline comprises base plate 1, skirt 2, end socket 3, Imported gas 5 and cylindrical shell; Cylindrical shell comprises cylindrical shell I 4, cylindrical shell II 7 and cylindrical shell III 9 from bottom to up, the diameter of cylindrical shell I 4 is connected by reducer I 6 greater than the diameter of cylindrical shell II 7 simultaneously between the two, the diameter of cylindrical shell II 7 is connected by reducer II 8 greater than the diameter of cylindrical shell III 9 simultaneously between the two, the position welding spiral fin 10 of 1/3rd height on cylindrical shell top, good vibration-isolating effect is arranged, and when resonance occurs, amplitude will reduce by 1/2nd left and right.In the cylindrical shell lower end, hand hole 11 and sewage draining exit 12 are installed.A number of spiral fin 10 is 3, stagger each other 180 the degree angle.The width of spiral fin 10 is 0.1 times of barrel diameter of spiral fin 10 present positions.The diameter of blow-down pipe, highly press rock gas emptying amount and environmental requirement and determine, therefore the diameter by increasing the bottom cylindrical shell or increase wall thickness, effectively reach and improve the blow-down pipe purpose of natural vibration period, and natural vibration period is larger, more difficult resonance.So choose suitable bottom barrel diameter, under the effect of wind load, amplitude is no more than the boundary of standard code as calculated.
Be understandable that, above about specific descriptions of the present utility model, only for the utility model being described and being not to be subject to the described technological scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the utility model, to reach identical technique effect; Use needs as long as satisfy, all within protection domain of the present utility model.
Claims (3)
1. the blow-down pipe with the flow-disturbing fin that is used for exhausting pipeline, comprise base plate (1), skirt (2), end socket (3), Imported gas (5) and cylindrical shell; It is characterized in that: cylindrical shell comprises cylindrical shell I (4), cylindrical shell II (7) and cylindrical shell III (9) from bottom to up, the diameter of cylindrical shell I (4) is connected by reducer I (6) greater than the diameter of cylindrical shell II (7) simultaneously between the two, the diameter of cylindrical shell II (7) is connected by reducer II (8) greater than the diameter of cylindrical shell III (9) simultaneously between the two, the position welding spiral fin (10) of 1/3rd height on cylindrical shell top is equipped with hand hole (11) and sewage draining exit (12) in the cylindrical shell lower end.
2. according to the blow-down pipe with the flow-disturbing fin for exhausting pipeline claimed in claim 1, it is characterized in that: a number of described spiral fin (10) is 3, stagger each other 180 the degree angle.
3. according to the blow-down pipe with the flow-disturbing fin for exhausting pipeline claimed in claim 1, it is characterized in that: the width of described spiral fin (10) is 0.1 times of barrel diameter of spiral fin (10) present position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220585143 CN203010030U (en) | 2012-11-08 | 2012-11-08 | Blow-down pipe provided with spoiler fins and used for pipe emptying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220585143 CN203010030U (en) | 2012-11-08 | 2012-11-08 | Blow-down pipe provided with spoiler fins and used for pipe emptying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203010030U true CN203010030U (en) | 2013-06-19 |
Family
ID=48601627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220585143 Expired - Fee Related CN203010030U (en) | 2012-11-08 | 2012-11-08 | Blow-down pipe provided with spoiler fins and used for pipe emptying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203010030U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006042A (en) * | 2014-06-10 | 2014-08-27 | 东南大学 | Flow guiding pipeline guiding fluid to spirally go forwards |
| CN114233783A (en) * | 2021-12-06 | 2022-03-25 | 天津大学 | D-shaped fin for tower vibration reduction |
-
2012
- 2012-11-08 CN CN 201220585143 patent/CN203010030U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006042A (en) * | 2014-06-10 | 2014-08-27 | 东南大学 | Flow guiding pipeline guiding fluid to spirally go forwards |
| CN114233783A (en) * | 2021-12-06 | 2022-03-25 | 天津大学 | D-shaped fin for tower vibration reduction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20191108 |