CN1161263C - Delivering pipe with internal by-pass - Google Patents
Delivering pipe with internal by-pass Download PDFInfo
- Publication number
- CN1161263C CN1161263C CNB00132506XA CN00132506A CN1161263C CN 1161263 C CN1161263 C CN 1161263C CN B00132506X A CNB00132506X A CN B00132506XA CN 00132506 A CN00132506 A CN 00132506A CN 1161263 C CN1161263 C CN 1161263C
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- CN
- China
- Prior art keywords
- pipe
- conveying
- outer tube
- air extractor
- extractor vent
- Prior art date
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- Expired - Fee Related
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Abstract
The present invention relates to an internal bypass conveying pipe, which is composed of a conveying outer tube and a conveying inner tube. The top end of the inner wall of the conveying outer tube is connected with the conveying inner tube. The lower surface of the inner tube is provided with a plurality of air vents along a shaft. The air vents are provided with a deflector upwards. The compressed air circulated in the inner tube can form turbulent flow when passing through the air vents and enter the outer tube. The solid material of the outer tube can be pushed in a cutting mode, and the solid material can be conveyed in the outer tube by section creeping. The present invention can reduce the friction with the outer tube and the inner wall, and can prevent the abrasion and the blocking of the conveying tubes. The present invention is helpful for enlarging the pressure of the compressed air of a pipeline conveying system and prolonging conveying distance.
Description
The present invention is a kind of delivering pipe with internal by-pass that utilizes pressurized air to pass through sealing pipeline conveying solid substance material.
At present, the fly ash in power plant generally adopts tubular type to carry, and the fly ash in the delivery pipe is under compressed-air actuated effect, flow along delivery pipe, for guaranteeing the flowing power of institute's convey materials, when flow velocity is big, because the rubbing effect of granular material and delivery pipe inwall, cause the wearing and tearing of delivery pipe easily, shortened the service life of whole pipeline delivery system, and when flow velocity hour, cause very easily that again the delivery pipe in-to-in stops up, the pipeline system operation was both unstable, also unreliable.
The object of the present invention is to provide a kind of delivering pipe with internal by-pass of the conveying solid substance material that can effectively prevent the pipeline wearing and tearing, stop up, improved the transmission performance of solid material, improved transmission efficiency.
The present invention is achieved in that a kind of delivering pipe with internal by-pass, be by carrying outer tube and carrying interior pipe to constitute, carry the top of outer tube wall to connect pipe in the conveying, the lower surface of pipe has some air extractor vents vertically in described, one deflecting plate is set on the described air extractor vent, described deflecting plate be obliquely installed and and the inwall of interior pipe between leave airspace.
The shape of pipe air extractor vent can be wedge in described.
Described deflecting plate that is obliquely installed and interior tubular axis to angle can be 35 °-55 °.
The shape of described deflecting plate also can be square.
Centre distance in described between the pipe air extractor vent also can be 600-2000mm.
The diameter of pipe can be 50-200mm in the described conveying.
The present invention is owing to increased pipe in traditional delivery pipe, and offer air extractor vent in the segmentation of interior pipe lower surface, outward, the pressurized air that circulates in interior pipe effect owing to deflecting plate when entering outer tube through air extractor vent forms turbulent flow, and promote solid material below the air extractor vent in the mode of cutting, make solid material wriggling operation piecemeal in carrying outer tube, greatly reduce the friction of solid material and outer tube wall, the wearing and tearing and the obstruction of delivery pipe have been prevented, help strengthening the pressure of pipeline delivery system compressed air, prolong fed distance and improve transport efficiency.
Below in conjunction with embodiment the present invention is described in detail:
Fig. 1, Fig. 2 are the structure cutaway view and the piecemeal flow schematic diagram of solid material in outer tube of delivering pipe with internal by-pass of the present invention.
With reference to figure 1, Fig. 2, delivering pipe with internal by-pass is by carrying outer tube 1 and carrying interior pipe 2 to constitute, pipe 2 can be connected in the top of carrying outer tube 1 inwall by the form of welding in carrying, the lower surface segmentation vertically of pipe 2 has some air extractor vents 3 in described, one deflecting plate 4 is set on the described air extractor vent 3, and and the inwall of interior pipe 2 between leave airspace 7, in order to be provided with conveniently, the form that this deflecting plate 4 can weld is connected in the limit, hole of air extractor vent 3, described deflecting plate 4 is divided into preceding pore 5 and posterior spiracle 6 with the air extractor vent 3 of interior pipe, the front end that is deflecting plate 4 and air extractor vent 3 forms preceding pore 5, deflecting plate 4 forms posterior spiracle 6 with the rear end of air extractor vent 3, described deflecting plate 4 is obliquely installed, the pressurized air of circulation formation turbulent flow through air extractor vent 3 enters outer tube 1 in the time in the pipe 2 in making, the pressurized air of pipe 2 was along the oblique outer tube 1 that enters in deflecting plate 4 surfaces both, pressurized air is to form turbulent flow at air extractor vent 3 places, so just, oblique cutting air extractor vent 3 belows heap the solid material 9 of " small hill " shape at this, simultaneously it is sent to next section in the pipe, when solid material 9 piles " small hill " shape again at air extractor vent 8 front ends of next section, air extractor vent 8 by this section place cuts passing, at this moment, previous air extractor vent 3 is because the reach of solid material 9, and make the pressurized air in the outer tube 1 enter interior pipe 2 from this air extractor vent 3, enter outer tube 1 from next air extractor vent 8 again, reciprocal successively, realized the wriggling transmission of solid material in delivery pipe, reduced the friction of solid material and outer tube wall, the wearing and tearing and the obstruction of delivery pipe have been prevented, can make the pressurized air in the pipe bring up to 400KPa, fed distance is the longest to reach 1500 meters.
In order better to improve the material laser propagation effect of delivering pipe with internal by-pass, further improve transport efficiency, make the operation of pipeline delivery system stable more, reliable, promptly by the structure of delivering pipe with internal by-pass, the transmission performance that size is improved solid material better, being shaped as of described deflecting plate 4 is square, in described pipe air extractor vent 3 be shaped as wedge, also made things convenient for being connected of air extractor vent 3 and deflecting plate 4 simultaneously, can make the deflecting plate 4 and the limit, hole of air extractor vent 3 reach identical bonded assembly degree; The described deflecting plate that is obliquely installed 4 and interior pipe 2 axial angles are 35 °-55 °, and pipe air extractor vent 3 places form preferable turbulence effects in helping, and in conjunction with other structure, the size of delivery pipe, the best angle of angle is 42 °-48 °; Centre distance in described between the pipe air extractor vent is 600-2000mm, and the best is 1000-1600mm; The diameter of pipe is 50-200mm in the described conveying, and the best is 90-160mm.
Claims (4)
1. delivering pipe with internal by-pass, be by carrying outer tube and carrying interior pipe to constitute, carry the top of outer tube wall to connect pipe in the conveying, the lower surface of pipe has some air extractor vents vertically in described, one deflecting plate is set on the described air extractor vent, described deflecting plate be obliquely installed and and the inwall of interior pipe between leave airspace, manage the wedge that is shaped as of air extractor vent in described, it is characterized in that: being shaped as of described deflecting plate is square, described deflecting plate that is obliquely installed and interior tubular axis to angle be 35 °-55 °, centre distance in described between the pipe air extractor vent is 600-2000mm, and the diameter of pipe is 50-200mm in the described conveying.
2. delivering pipe with internal by-pass as claimed in claim 1 is characterized in that: described deflecting plate that is obliquely installed and interior tubular axis to angle be 42 °-48 °.
3. delivering pipe with internal by-pass as claimed in claim 1 or 2 is characterized in that: the centre distance in described between the pipe air extractor vent is 1000-1600mm.
4. delivering pipe with internal by-pass as claimed in claim 3 is characterized in that: the diameter of pipe is 90-160mm in the described conveying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB00132506XA CN1161263C (en) | 2000-11-24 | 2000-11-24 | Delivering pipe with internal by-pass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB00132506XA CN1161263C (en) | 2000-11-24 | 2000-11-24 | Delivering pipe with internal by-pass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1291581A CN1291581A (en) | 2001-04-18 |
| CN1161263C true CN1161263C (en) | 2004-08-11 |
Family
ID=4595204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB00132506XA Expired - Fee Related CN1161263C (en) | 2000-11-24 | 2000-11-24 | Delivering pipe with internal by-pass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1161263C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1623941A1 (en) * | 2004-08-05 | 2006-02-08 | Alcan Technology & Management Ltd. | System and method for pneumatically conveying of free-flowing products in a dense flow |
| CN101979204B (en) * | 2010-11-01 | 2012-05-09 | 哈尔滨工业大学 | Indirect-heating braze-welding method for packaging shell with thermal sensitive element |
| CN105151793A (en) * | 2015-08-21 | 2015-12-16 | 天津宜诺医药工业设计有限公司 | Powder conveying pipe and conveying method thereof |
-
2000
- 2000-11-24 CN CNB00132506XA patent/CN1161263C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1291581A (en) | 2001-04-18 |
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