CN103527513A - Centrifugal pump - Google Patents
Centrifugal pump Download PDFInfo
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- CN103527513A CN103527513A CN201310489986.9A CN201310489986A CN103527513A CN 103527513 A CN103527513 A CN 103527513A CN 201310489986 A CN201310489986 A CN 201310489986A CN 103527513 A CN103527513 A CN 103527513A
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- blade
- centrifugal pump
- impeller
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Abstract
The invention discloses a centrifugal pump, and relates to the technical field of radial flow pump manufacturing. The centrifugal pump comprises an impeller. The impeller is formed by combining at least two connecting parts which comprise blade parts and cover plate parts. Connecting blocks are connected through connecting pieces. The centrifugal pump can solve the problems that in the prior art, due to the fact that blades, front cover plates and rear cover plates of the impeller cannot be detached, the impeller is short in service life and high in manufacturing and maintenance cost.
Description
Technical field
The present invention relates to centrifugal pump manufacturing technology field, the detachable centrifugal pump of especially a kind of impeller.
Background technique
The centrifugal pump (conventionally claiming ore slurry pump or slag stock pump) of be widely used at present the industry production deslagginves such as mine, metallurgy, electric power, chemical industry, ore discharge, digging sand, its impeller generally adopts semi-open type and closed two kinds of structural types, and enclosed impeller is all that the blade of impeller and front shroud, back shroud one are cast during fabrication; Centrifugal pump is when the fluid of conveying solid substance, liquid mixing, and the blade of centrifugal pump impeller will be worn after work a period of time, affects the service behaviour of centrifugal pump, can make impeller damage when serious, causes centrifugal pump to shut down; People are for improving the wear-resisting property of impeller, often whole impeller is manufactured with some high-abrasive materials, or at some harder materials of surface inserting of whole impeller, but because front and rear cover plate and the blade of impeller noted earlier is all the reason being made of one, therefore, when improving the blade wear resistance of impeller, also have to simultaneously the improve wear resistance of front shroud and back shroud, for the less impeller of some sizes, do not have space to inlay at all, so just must cause the cost of production of impeller higher; In addition,, if the partial blade wearing and tearing of centrifugal pump impeller after use a period of time need all be changed whole impeller during replacing, so also will cause maintenance cost higher.
Summary of the invention
The object of this invention is to provide a kind of centrifugal pump, it can solve in prior art short, manufacture in impeller working life and the high problem of maintenance cost.
In order to address the above problem, the technical solution used in the present invention is: this centrifugal pump that includes impeller, described impeller is is at least connected and composed by link by two block-shaped identical contiguous blocks.
According to above technological scheme, further scheme is: described contiguous block all has blade-section and back shroud part; The back shroud of each contiguous block is partly spliced at described blade-section and is positioned at the circular plate body that connects live axle one side.
Further scheme is: described contiguous block all has blade-section and front shroud part; The front shroud of each contiguous block is partly spliced at described blade-section and is positioned at the circular plate body that connects the relative side of live axle.
Further scheme is: described contiguous block all has blade-section, front shroud part and back shroud part; The back shroud of each contiguous block is partly spliced at described blade-section and is positioned at the circular plate body that connects live axle one side; The front shroud of each contiguous block is partly spliced at described blade-section and is positioned at the circular plate body that connects the relative side of live axle.
Further scheme is: the material that described blade-section is more than or equal to HRC50 by hardness is made.
Further scheme is: the surface inserting of described blade-section has hardness to be more than or equal to the material of HRC50.
Further scheme is: described blade-section is made by any in the middle of stupalith and Hardmetal materials.
Further scheme is: the surface inserting of described blade-section has stupalith or Hardmetal materials.
Owing to having adopted technique scheme, the present invention compared with prior art has following beneficial effect:
1, all sites of centrifugal pump impeller parts can be realized wear-and corrosion-resistant enhancement process, improves the working life of centrifugal pump impeller, and can improve more than 3 ~ 5 times working life.
2, can the vane plate of centrifugal pump impeller be selected to different wear-resistant anticorrosive materials according to different working conditions, save impeller overall cost.
While 3, keeping in repair impeller, only need to change the parts that damage, saving centrifugal pump maintenance cost.
4, each parts means of fixation variation of impeller is easy to assembly quick.
5, by complicated cast inblock and manufacture simplification, be that single component is produced.
Accompanying drawing explanation
Fig. 1 is the plan view of centrifugal pump enclosed impeller.
Fig. 2 is the plan view of centrifugal pump enclosed impeller.
Fig. 3 is the worm's eye view of centrifugal pump enclosed impeller.
Fig. 4 is the plan view of half-opened impeller before centrifugal pump.
Fig. 5 is the plan view of half-opened impeller before centrifugal pump.
Fig. 6 is the plan view of half-opened impeller after centrifugal pump.
Fig. 7 is the plan view of half-opened impeller after centrifugal pump.
Embodiment
Below in conjunction with accompanying drawing, embodiment is further described the present invention:
Embodiment one: enclosed impeller (comprising blade 1, front shroud 3 and back shroud 2)
Centrifugal pump as shown in Fig. 1 ~ Fig. 3, comprise impeller, impeller is divided into three block-shaped identical contiguous blocks, first contiguous block being formed by blade-section 1-1, front shroud part 3-1 and back shroud part 2-1, second contiguous block being formed by blade-section 1-2, front shroud part 3-2 and back shroud part 2-2, the 3rd contiguous block being formed by blade-section 1-3, front shroud part 3-3 and back shroud part 2-3, the back shroud part 2-1 of each contiguous block, 2-2,2-3 are spliced at blade-section and are positioned at the circular plate body that connects live axle one side; The front shroud part 3-1 of each contiguous block, 3-2,3-3 is spliced at blade-section and is positioned at the circular plate body that connects the relative side of live axle, between each contiguous block, by bolt 4, is connected with nut 5; The high-abrasive material that blade 1 is more than or equal to HRC50 by hardness is made; High-abrasive material is stupalith.
Embodiment two: enclosed impeller (comprising blade 1, front shroud 3 and back shroud 2)
Centrifugal pump as shown in Fig. 1 ~ Fig. 3, described blade wheel structure is identical with embodiment one, and the surface inserting of blade 1 has hardness to be more than or equal to the high-abrasive material of HRC50; High-abrasive material is Hardmetal materials.
Embodiment three: front half-opened impeller (comprising blade 11, back shroud 12)
Centrifugal pump as shown in Fig. 4 ~ Fig. 5, comprise impeller, impeller divides forming shape identical three, first contiguous block being formed by blade-section 11-1, back shroud part 12-1, second contiguous block being formed by blade-section 11-2 and back shroud part 12-2, the 3rd contiguous block being formed by blade-section 11-3 and back shroud part 12-3, the back shroud part 12-1 of each contiguous block, 12-2,12-3 are spliced at blade-section and are positioned at the circular plate body that connects live axle one side, between each contiguous block, by bolt 4, are connected with nut 15; The high-abrasive material that blade 11 is more than or equal to HRC50 by hardness is made, and high-abrasive material is stupalith.
Embodiment four: front half-opened impeller (comprising blade 11, back shroud 12)
Centrifugal pump as shown in Fig. 4 ~ Fig. 5, blade wheel structure is identical with embodiment three, and the surface inserting of blade 11 has hardness to be more than or equal to the high-abrasive material of HRC50, and high-abrasive material is Hardmetal materials.
Embodiment five: rear half-opened impeller (comprising blade 21, front shroud 22)
Centrifugal pump as shown in Fig. 6 ~ Fig. 7, comprise impeller, impeller divides forming shape identical three, first contiguous block being formed by blade-section 21-1, front shroud part 22-1, second contiguous block being formed by blade-section 21-2 and front shroud part 22-2, the 3rd contiguous block being formed by blade-section 21-3 and front shroud part 22-3, the front shroud part 22-1 of each contiguous block, 22-2,22-3 are spliced at described blade-section and are positioned at the circular plate body that connects the relative side of live axle, between each contiguous block, by bolt 23, are connected with nut 24; The high-abrasive material that blade 21 is more than or equal to HRC50 by hardness is made, and high-abrasive material is stupalith.
Embodiment six: rear half-opened impeller (comprising blade 21, front shroud 22)
Centrifugal pump as shown in Fig. 6 ~ Fig. 7, blade wheel structure is identical with embodiment five, and the surface inserting of blade 21 has hardness to be more than or equal to high-abrasive material more than HRC50; High-abrasive material is Hardmetal materials.
Except the means of fixation that the cited blade of embodiment one ~ embodiment six is threaded with front shroud, back shroud, being connected and fixed of blade and front shroud, back shroud can also comprise: the modes such as riveted joint, bonding, clamping, socket, welding.
Claims (8)
1. a centrifugal pump that includes impeller, is characterized in that: described impeller is is at least connected and composed by link by two block-shaped identical contiguous blocks.
2. centrifugal pump according to claim 1, is characterized in that: described contiguous block all has blade-section and back shroud part; The back shroud of each contiguous block is partly spliced at described blade-section and is positioned at the circular plate body that connects live axle one side.
3. centrifugal pump according to claim 1, is characterized in that: described contiguous block all has blade-section and front shroud part; The front shroud of each contiguous block is partly spliced at described blade-section and is positioned at the circular plate body that connects the relative side of live axle.
4. centrifugal pump according to claim 1, is characterized in that: described contiguous block all has blade-section, front shroud part and back shroud part; The back shroud of each contiguous block is partly spliced at described blade-section and is positioned at the circular plate body that connects live axle one side; The front shroud of each contiguous block is partly spliced at described blade-section and is positioned at the circular plate body that connects the relative side of live axle.
5. according to the centrifugal pump described in claim 1,2,3 or 4, it is characterized in that: the material that described blade-section is more than or equal to HRC50 by hardness is made.
6. according to the centrifugal pump described in claim 1,2,3 or 4, it is characterized in that: the surface inserting of described blade-section has hardness to be more than or equal to the material of HRC50.
7. according to the centrifugal pump described in claim 1,2,3 or 4, it is characterized in that: described blade-section is made by any in the middle of stupalith and Hardmetal materials.
8. according to the centrifugal pump described in claim 1,2,3 or 4, it is characterized in that: the surface inserting of described blade-section has stupalith or Hardmetal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310489986.9A CN103527513A (en) | 2013-10-18 | 2013-10-18 | Centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310489986.9A CN103527513A (en) | 2013-10-18 | 2013-10-18 | Centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103527513A true CN103527513A (en) | 2014-01-22 |
Family
ID=49929775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310489986.9A Pending CN103527513A (en) | 2013-10-18 | 2013-10-18 | Centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103527513A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382255A (en) * | 2016-11-23 | 2017-02-08 | 广东威灵电机制造有限公司 | Impeller |
| CN106382254A (en) * | 2016-11-23 | 2017-02-08 | 广东威灵电机制造有限公司 | Impeller |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4944441B1 (en) * | 1968-10-17 | 1974-11-28 | ||
| FR2320438A1 (en) * | 1975-08-07 | 1977-03-04 | Sueddeutsche Kuehler Behr | Radial fan impeller constructed from wheel segments - has butting segment surfaces provided with interlockable toothed edges |
| GB1523972A (en) * | 1975-03-25 | 1978-09-06 | Sonesson Pumpind Ab | Impeller member |
| JPS5853699A (en) * | 1981-09-24 | 1983-03-30 | Hiroshi Tanaka | Blade wheel structure in rotary fluid machine |
| CN203201864U (en) * | 2013-02-08 | 2013-09-18 | 建准电机工业股份有限公司 | Fan wheel |
| CN203604253U (en) * | 2013-10-18 | 2014-05-21 | 柳州市双铠工业技术有限公司 | Centrifugal pump |
-
2013
- 2013-10-18 CN CN201310489986.9A patent/CN103527513A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4944441B1 (en) * | 1968-10-17 | 1974-11-28 | ||
| GB1523972A (en) * | 1975-03-25 | 1978-09-06 | Sonesson Pumpind Ab | Impeller member |
| FR2320438A1 (en) * | 1975-08-07 | 1977-03-04 | Sueddeutsche Kuehler Behr | Radial fan impeller constructed from wheel segments - has butting segment surfaces provided with interlockable toothed edges |
| JPS5853699A (en) * | 1981-09-24 | 1983-03-30 | Hiroshi Tanaka | Blade wheel structure in rotary fluid machine |
| CN203201864U (en) * | 2013-02-08 | 2013-09-18 | 建准电机工业股份有限公司 | Fan wheel |
| CN203604253U (en) * | 2013-10-18 | 2014-05-21 | 柳州市双铠工业技术有限公司 | Centrifugal pump |
Non-Patent Citations (2)
| Title |
|---|
| 李健，黄开亮主编: "《中国机械工业技术发展史》", 31 March 2001, 机械工业出版社, article "材料技术", pages: 380 * |
| 荣守范，朱永长主编: "《铸造金属耐磨材料实用手册》", 31 July 2010, 化学工业出版社, article "泵壳与叶轮", pages: 301-302 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382255A (en) * | 2016-11-23 | 2017-02-08 | 广东威灵电机制造有限公司 | Impeller |
| CN106382254A (en) * | 2016-11-23 | 2017-02-08 | 广东威灵电机制造有限公司 | Impeller |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20140122 |