CN102086873A - Self-balancing axial force multi-stage centrifugal pump with variable flow rate and total head - Google Patents
Self-balancing axial force multi-stage centrifugal pump with variable flow rate and total head Download PDFInfo
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- CN102086873A CN102086873A CN201110059643XA CN201110059643A CN102086873A CN 102086873 A CN102086873 A CN 102086873A CN 201110059643X A CN201110059643X A CN 201110059643XA CN 201110059643 A CN201110059643 A CN 201110059643A CN 102086873 A CN102086873 A CN 102086873A
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Abstract
The invention discloses a self-balancing axial force multi-stage centrifugal pump with variable flow rate and total head. A spitting section A and a spitting section B of the centrifugal pump are installed at the middle of a pump shaft; the pump shaft at the left side of the spitting section A is provided with a guide vane, an impeller, a middle section, a suction section A, a bearing body A sequentially from right to left; the pump shaft at the right side of the spitting section B is provided with a guide vane, an impeller, a middle section, a suction section B and a bearing body B sequentially from left to right; the pump shaft is supported by the bearing body A and the bearing body B, and all the components are integrated through the fastening of bolts. The pump is equivalent to the combination of two multi-stage centrifugals, and the parallel use and serial use can be realized, and the large flow rate and high total head are realized. Because the total pump is arranged symmetrically centered on the spitting sections of the pump, thus the self-balance of the axial force is realized, the damage and abrasion of the components are avoided, the service life is prolonged, the volume loss generated by the operating system is overcome, and the water pump efficiency is improved; and the pump has the advantages of simple structure, high efficiency, low cost and long service life.
Description
One, technical field
What the present invention relates to is a kind of multistage centrifugal pump, especially a kind of flow, lift changable type self-balanced thrust multistage centrifugal pump.
Two, background technique
Current, the multistage centrifugal pump of application all is a single-suction centrifugal pump, has only a suction port, and the flow and the lift of a pump of structures shape are definite values, can not both realize big flow during The field, obtains high-liftly again, uses inconveniently, and efficient is low.The equidirectional mode of arranging in turn of all impellers of this kind multistage centrifugal pump is installed on the pump shaft, pump in use can produce axial force, for balancing axial thrust, usually adopt Balance disc or balancing drum to carry out balance, but can't eliminate axial force fully, remaining axial force is born by bearing at all.Pump in use, bearing bears bigger axial force and damages easily, Equilibrator wearing and tearing also can cause other rotor component wearing and tearing, thereby influence the normal working life and the working efficiency of pump, often change the device maintenance expense that wear-out part has also increased the user.In addition, the position of the footing of pump on the pump housing fixed, and can not change the direction of pump intake and discharge opening, on-the-spot connecting pipeline inconvenience.
Three, summary of the invention
In order to solve the deficiencies in the prior art, the purpose of this invention is to provide a kind of flow, lift changable type self-balanced thrust multistage centrifugal pump.
Realize that the technological scheme that purpose of the present invention adopts is: this multistage centrifugal pump mainly is made up of pump shaft, bearing support first, suction casing first, stator, impeller, stage casing, first, Spit Section, Spit Section second, suction casing second, bearing support second, dismantled and assembled footing; First, Spit Section, Spit Section second is installed in the middle part of pump shaft, on the pump shaft in first left side, Spit Section stator, impeller, stage casing, suction casing first, bearing support first are installed successively from right to left, stator, impeller, stage casing, suction casing second, bearing support second from left to right are installed on the pump shaft on second right side, Spit Section successively; Pump shaft is supported by bearing support first and bearing support second, and each parts connect as a whole by bolton.
The hull outside of described suction casing first and suction casing second is that the center is drilled with an attachment hole every 90 degree diametrically with the discharge opening, is connected with dismantled and assembled footing as required on the attachment hole.
The invention has the beneficial effects as follows: the multistage centrifugal pump of this kind structural type, be equivalent to two multistage centrifugal pumps and combine, can realize in parallel and the series connection use.When in parallel, the suction port of two suction casings is intake simultaneously, and the water outlet simultaneously of the discharge opening of two Spit Sections doubles flow; During series connection, the suction port of the discharge opening of Spit Section first and suction casing second joins, and lift is doubled; Both realized big flow, obtained high-lift again.Particularly when speedily carrying out rescue work on-the-spot the use, do not changing under the necessary electromotor situation, beginning the use traffic in parallel operation that doubles, when water is extracted into certain depth, changing the operation that doubles of series connection use lift into, just can finish the task of speedily carrying out rescue work in the short period of time.Because whole water pump is that the center is in a symmetrical arrangement with the Spit Section of pump, thereby realize the autobalance of axial force, of damage of components and the wearing and tearing of existing multistage centrifugal pump have been avoided for realize that balancing axial thrust produces in operation process, prolong the working life of pump, reduced the customer equipment maintenance cost; Simultaneously, overcome the volumetric loss that operational system produced, improved pump efficiency.The position of the dismantled and assembled footing of conversion simultaneously can change the direction of suction port with the discharge opening of Spit Section of suction casing, makes things convenient for on-the-spot connecting pipeline.In a word, this multistage centrifugal pump component is few, and is simple in structure, and cost is low, long service life, and flow, lift are variable, the efficient height, running state is very steady reliable.
Four, description of drawings
Fig. 1 is the sectional structure chart of flow of the present invention, lift changable type self-balanced thrust multistage centrifugal pump.
Five, embodiment
In the accompanying drawings, flow of the present invention, lift changable type self-balanced thrust multistage centrifugal pump mainly are made up of pump shaft, bearing support first, suction casing first, stator, impeller, stage casing, first, Spit Section, Spit Section second, suction casing second, bearing support second, dismantled and assembled footing; Spit Section first 7, Spit Section second 8 are installed in the middle part of pump shaft 1, stator 4, impeller 5, stage casing 6, suction casing first 3, bearing support first 2 are installed on the pump shaft 1 in Spit Section first 7 left sides from right to left successively, stator 4, impeller 5, stage casing 6, suction casing second 9, bearing support second 10 from left to right are installed on the pump shaft 1 on Spit Section second 8 right sides successively; Pump shaft is supported by bearing support first 2 and bearing support second 10, and each parts connect as a whole by bolton.Overall structure is equivalent to two multistage centrifugal pumps to be combined, and can realize in parallel and the series connection use.When in parallel, the suction port of two suction casings is intake simultaneously, and the water outlet simultaneously of the discharge opening of two Spit Sections doubles flow; During series connection, the suction port of the discharge opening of Spit Section first and suction casing second joins, and lift is doubled, and has both realized big flow, obtains high-lift again.Because whole water pump is that the center is in a symmetrical arrangement with the Spit Section of pump, thereby realize the autobalance of axial force.The hull outside of described suction casing first 3 and suction casing second 9 is that the center is drilled with attachment hole 12 every 90 degree diametrically with the discharge opening, is connected with dismantled and assembled footing 11 on the attachment hole.The dismantled and assembled footing 11 of every pump has only two, according to on-the-spot needs dismantled and assembled footing 11 is connected on the attachment hole of needs, can change the direction of the discharge opening of the suction port of suction casing and Spit Section, convenient on-the-spot connecting pipeline.
Claims (2)
1. a flow, lift changable type self-balanced thrust multistage centrifugal pump mainly are made up of pump shaft, bearing support first, suction casing first, stator, impeller, stage casing, first, Spit Section, Spit Section second, suction casing second, bearing support second, dismantled and assembled footing; It is characterized in that: described Spit Section first (7), Spit Section second (8) are installed in the middle part of pump shaft (1), on the pump shaft (1) in Spit Section first (7) left side stator (4), impeller (5), stage casing (6), suction casing first (3), bearing support first (2) are installed successively from right to left, stator (4), impeller (5), stage casing (6), suction casing second (9), bearing support second (10) from left to right are installed on the pump shaft (1) on Spit Section second (8) right side successively; Pump shaft is supported by bearing support first (2) and bearing support second (10), and each parts connect as a whole by bolton.
2. described multistage centrifugal pump as claimed in claim 1, it is characterized in that: the hull outside of described suction casing first (3) and suction casing (9) is drilled with attachment hole (12) every 90 degree diametrically with the suction port center, is connected with dismantled and assembled footing (11) as required on the attachment hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110059643XA CN102086873A (en) | 2011-03-10 | 2011-03-10 | Self-balancing axial force multi-stage centrifugal pump with variable flow rate and total head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110059643XA CN102086873A (en) | 2011-03-10 | 2011-03-10 | Self-balancing axial force multi-stage centrifugal pump with variable flow rate and total head |
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| Publication Number | Publication Date |
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| CN102086873A true CN102086873A (en) | 2011-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110059643XA Pending CN102086873A (en) | 2011-03-10 | 2011-03-10 | Self-balancing axial force multi-stage centrifugal pump with variable flow rate and total head |
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| CN (1) | CN102086873A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59589A (en) * | 1982-06-28 | 1984-01-05 | Agency Of Ind Science & Technol | Multi-stage centrifugal pump |
| JPH059589A (en) * | 1991-03-12 | 1993-01-19 | Sumitomo Metal Ind Ltd | Production of high strength cold rolled steel sheet for deep drawing having baking hardenability |
| CN2185816Y (en) * | 1993-10-06 | 1994-12-21 | 周忠良 | Non-axial force segmental type multi-stage centrifugal pump |
| CN1439808A (en) * | 2002-07-10 | 2003-09-03 | 甘肃工业大学 | Multistage sectional centrifugal pump with symmetric impeller arrangement |
| DE10322382A1 (en) * | 2003-05-17 | 2004-12-02 | Ksb Aktiengesellschaft | Multi-stage centrifugal pump |
| CN201381989Y (en) * | 2009-04-21 | 2010-01-13 | 重庆水泵厂有限责任公司 | Double-inlet self-balance multiple-stage centrifugal pump |
| CN201747618U (en) * | 2010-08-20 | 2011-02-16 | 赣州水泵制造有限公司 | Dual-suction multistage centrifugal pump |
| CN201972929U (en) * | 2011-03-10 | 2011-09-14 | 赵景权 | Flow rate and lift variable type self-balancing axial force multistage centrifugal pump |
-
2011
- 2011-03-10 CN CN201110059643XA patent/CN102086873A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59589A (en) * | 1982-06-28 | 1984-01-05 | Agency Of Ind Science & Technol | Multi-stage centrifugal pump |
| JPH059589A (en) * | 1991-03-12 | 1993-01-19 | Sumitomo Metal Ind Ltd | Production of high strength cold rolled steel sheet for deep drawing having baking hardenability |
| CN2185816Y (en) * | 1993-10-06 | 1994-12-21 | 周忠良 | Non-axial force segmental type multi-stage centrifugal pump |
| CN1439808A (en) * | 2002-07-10 | 2003-09-03 | 甘肃工业大学 | Multistage sectional centrifugal pump with symmetric impeller arrangement |
| DE10322382A1 (en) * | 2003-05-17 | 2004-12-02 | Ksb Aktiengesellschaft | Multi-stage centrifugal pump |
| CN201381989Y (en) * | 2009-04-21 | 2010-01-13 | 重庆水泵厂有限责任公司 | Double-inlet self-balance multiple-stage centrifugal pump |
| CN201747618U (en) * | 2010-08-20 | 2011-02-16 | 赣州水泵制造有限公司 | Dual-suction multistage centrifugal pump |
| CN201972929U (en) * | 2011-03-10 | 2011-09-14 | 赵景权 | Flow rate and lift variable type self-balancing axial force multistage centrifugal pump |
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Application publication date: 20110608 |