CN102536891A - Improved structure for draught fan vane wheel - Google Patents
Improved structure for draught fan vane wheel Download PDFInfo
- Publication number
- CN102536891A CN102536891A CN2011103558317A CN201110355831A CN102536891A CN 102536891 A CN102536891 A CN 102536891A CN 2011103558317 A CN2011103558317 A CN 2011103558317A CN 201110355831 A CN201110355831 A CN 201110355831A CN 102536891 A CN102536891 A CN 102536891A
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- CN
- China
- Prior art keywords
- vane wheel
- draught fan
- improved structure
- impeller
- weld seam
- 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.)
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Abstract
The invention discloses an improved structure for a draught fan vane wheel, belongs to the draught fan vane wheel, and aims to provide a draught fan vane wheel capable of removing condensed water deposited in weld joints of vanes and keeping balanced. The improved structure consists of a vane wheel body and a plurality of vanes welded on the vane wheel body. The improved structure is characterized in that: two small holes (4) are formed in the position on the outer rim of the vane wheel body (1), which is opposite to each weld joint (3). According to the improved structure, the shortcomings caused by unbalance of the vane wheel because the condensed water is deposited in the weld joints are overcome thoroughly, so that vibration of a draught fan is reduced, and a motor can run stably; and furthermore, the vane wheel is suitable for the draught fan working in a water spray environment.
Description
Technical field
The present invention relates to a kind of draught fan impeller, relate in particular to a kind of draught fan impeller and improve structure.
Background technique:Induced draught fan is the common equipment that is installed in sulfuration bed and washing chamber in the urea production; Because the impeller long-term work of induced draught fan is in filling the air the environment of water vapor; The steam that is dissolved with urea can penetrate into the weld seam between blade and the impeller body and be condensed into water; Thereby cause impeller to lose dynamic balancing and static balancing, cause vibration; Have a strong impact on the induced draught fan smooth running even damage motor.
Summary of the invention:In order to overcome the defective that exists in the existing technology, the present invention aims to provide a kind of can the condensed water that deposit in the blade weld seam eliminating, thereby keeps the draught fan impeller of impeller balance to improve structure.
To achieve these goals, the present invention adopts following technological scheme: it is made up of impeller body, some blades of being welded on this impeller body; Be provided with two apertures in the outer rim of impeller body corresponding to the position of weld seam.
Compare with existing technology; The present invention is owing to adopted technique scheme; On the basis of conventional impellers, increased aperture, even if therefore water vapor entering weld seam is condensed into water, impeller also can throw away the water that is condensed in the weld seam through the centrifugal force that high speed rotating produced via the aperture that is communicated with weld seam; Thereby thoroughly eliminated because of condensed water is deposited on the many defectives that cause the impeller disequilibrium to be brought in the weld seam, reduced the induced draught fan vibration, guaranteed the motor smooth running.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the I place enlarged view among Fig. 1.
Among the figure: impeller body 1 blade 2 weld seams 3 apertures 4
Embodiment:Below in conjunction with accompanying drawing and concrete embodiment the present invention is described further:
As shown in Figure 1: some blades 2 are welded on the impeller body 1, are provided with two apertures 4 in the outer rim of this impeller body corresponding to the position of weld seam 3.Adopt this structure, even if vapor permeation gets into weld seam 4 and is condensed into water, the centrifugal force that the condensed water in the weld seam 3 also can the impeller high speed rotating be produced is thrown out of through two apertures 4, therefore can guarantee the normal smooth working of induced draught fan.
Claims (1)
1. a draught fan impeller improves structure, is made up of impeller body, some blades of being welded on this impeller body; It is characterized in that: be provided with two apertures (4) corresponding to the position of weld seam (3) in the outer rim of impeller body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103558317A CN102536891A (en) | 2011-11-11 | 2011-11-11 | Improved structure for draught fan vane wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103558317A CN102536891A (en) | 2011-11-11 | 2011-11-11 | Improved structure for draught fan vane wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102536891A true CN102536891A (en) | 2012-07-04 |
Family
ID=46344629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103558317A Pending CN102536891A (en) | 2011-11-11 | 2011-11-11 | Improved structure for draught fan vane wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102536891A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6185821B1 (en) * | 1998-11-30 | 2001-02-13 | Lei-Jui Wu | Practical forged flange-type ball valve fabrication method |
| CN1974116A (en) * | 2006-12-20 | 2007-06-06 | 李俊松 | Making process of tube-sheet heat exchanger without seepage |
| CN101704162A (en) * | 2009-12-10 | 2010-05-12 | 中冶陕压重工设备有限公司 | Electroslag welding method for cylindrical longitudinal seam V groove |
| CN202326403U (en) * | 2011-11-11 | 2012-07-11 | 贵州宜化化工有限责任公司 | Improvement structure of draught fan vane wheel |
-
2011
- 2011-11-11 CN CN2011103558317A patent/CN102536891A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6185821B1 (en) * | 1998-11-30 | 2001-02-13 | Lei-Jui Wu | Practical forged flange-type ball valve fabrication method |
| CN1974116A (en) * | 2006-12-20 | 2007-06-06 | 李俊松 | Making process of tube-sheet heat exchanger without seepage |
| CN101704162A (en) * | 2009-12-10 | 2010-05-12 | 中冶陕压重工设备有限公司 | Electroslag welding method for cylindrical longitudinal seam V groove |
| CN202326403U (en) * | 2011-11-11 | 2012-07-11 | 贵州宜化化工有限责任公司 | Improvement structure of draught fan vane wheel |
Non-Patent Citations (4)
| Title |
|---|
| 《生物质化学工程》 19800430 李齐贤 "用不锈钢管代替紫铜管作松香蒸馏塔的闭口管" 第113-114页 1 , 第2期 * |
| 《石油化工腐蚀与防护》 20071031 王帝等 "加氢装置脱C_5系统的腐蚀与防护" 第14-17、28页 1 第24卷, 第5期 * |
| 李齐贤: ""用不锈钢管代替紫铜管作松香蒸馏塔的闭口管"", 《生物质化学工程》 * |
| 王帝等: ""加氢装置脱C_5系统的腐蚀与防护"", 《石油化工腐蚀与防护》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |