CN101818737B - Miniature electric submersible pump with motor shell as welding piece - Google Patents
Miniature electric submersible pump with motor shell as welding piece Download PDFInfo
- Publication number
- CN101818737B CN101818737B CN2009100252637A CN200910025263A CN101818737B CN 101818737 B CN101818737 B CN 101818737B CN 2009100252637 A CN2009100252637 A CN 2009100252637A CN 200910025263 A CN200910025263 A CN 200910025263A CN 101818737 B CN101818737 B CN 101818737B
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- CN
- China
- Prior art keywords
- motor shell
- submersible pump
- motor casing
- end ring
- external diameter
- Prior art date
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- 238000003466 welding Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a miniature electric submersible pump with a motor shell as a welding piece, in which a blade-conducting body, a water intake section, an upper bearing seat and a lower bearing seat are maintained in the original design, a motor shell is formed by welding a steel tube, the main body of the motor shell is made of a circular steel tube, an upper end and an upper end ring are welded, a lower end and a lower end ring are welded, and the upper end ring and the lower end ring are all round rings. The external diameter of the motor shell is smaller than the external diameters of the upper end ring and the lower end ring, and the motor shell has thin tube wall, light weight, low manufacture cost, simple process and convenient manufacture, popularization and use. The internal diameters of the upper end ring, the lower end ring and the motor shell are approximate to the corresponding internal diameter of an originally designed cast motor shell, and the miniature electric submersible pump with the motor shell as a welding piece can be used as a substitute of a traditional submersible pump, which is convenient to replace the motor shell in case of repairing the traditional submersible pump.
Description
Technical field
The present invention relates to a kind of water conservancy machinery, be specifically related to a kind of electric submersible pump of the usefulness of drawing water.
Background technique
The small electrical submersible pump is facility commonly used such as field irrigation, water drainage, fish pond draining, uses large in number and widely distributed.The small electrical submersible pump that uses at present, its casing is an ironcasting, the casing wall thickness is big, Heavy Weight, materials are many, and manufacture cost is high, easy bursting by freezing in winter, and also ironcasting also is easy to generate casting defects such as pore, sand holes, causes the working life of submersible pump low.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of motor casing is the small electrical submersible pump of weldment, and its motor casing is formed by round steel pipe and upper and lower end loops welded, and internal diameter is close with the corresponding internal diameter of former design ironcasting motor casing.
The present invention realizes through following technological scheme: a kind of motor casing is the small electrical submersible pump of weldment, and this electricity submersible pump is formed by four sections, comprising: diffuser, inlet segment, upper bearing bracket and motor casing; The inner chamber of described diffuser is provided with impeller, and the upper end is connected with outlet pipe, and the lower end is connected with inlet segment through bolt; Described inlet segment lower end is connected with the upper end of upper bearing bracket; Described upper bearing bracket lower end is connected with motor casing; The lower end of motor casing is connected with step; Described upper bearing bracket, step are connected with motor shaft through bearing respectively; Described motor casing inner chamber is provided with stator, rotor assembly; Wherein stator coil is connected with elastic cable paper, it is characterized in that: described motor casing main body is a round steel pipe, its upper end and top ring welding, lower end and lower loop welding; Described top ring, lower loop are circular ring; Described lower loop endoporus is provided with jump ring.
The external diameter of described top ring is close with the external diameter of upper bearing bracket; The external diameter of described lower loop is close with the external diameter of step; The external diameter of described motor casing is less than the external diameter of top ring, lower loop.
Good effect of the present invention is:
1, the motor casing tube wall is thin, in light weight, low cost of manufacture;
2, its cavity shape of welding type motor casing, size are identical with the ironcasting motor casing, can exchange, and change motor casing when being convenient to old-fashioned submersible pump maintenance;
3, motor casing adopts the section bar welding, and technology is simple, and is easy to make, is convenient to promote the use of.
Description of drawings
Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A sectional drawing of Fig. 1;
Among the figure: 1, diffuser, 2, impeller, 3, inlet segment, 4, upper bearing bracket, 5, bearing, 6, elastic cable paper, 7, motor casing, 7-1, top ring, 7-2, lower loop, 8, stator, rotor assembly, 9, jump ring, 10, step.
Embodiment
Like Fig. 1, shown in Figure 2: a kind of motor casing is the small electrical submersible pump of weldment, and the design that its diffuser 1, inlet segment 3, upper bearing bracket 4 and step 10 still keep original is constant; It is characterized in that: motor casing 7 adopts round steel pipe to be welded.Described motor casing 7 main bodys are round steel pipe, its upper end and top ring 7-1 welding, lower end and lower loop 7-2 welding; Described upper and lower end ring 7-1,7-2 are the circular ring that round steel pipe is made.The external diameter of motor casing 7 is less than the external diameter of upper and lower end ring 7-1,7-2, and tube wall is thin, in light weight, low cost of manufacture; Technology is simple, and is easy to make, is convenient to promote the use of.
The internal diameter of described top ring 7-1, lower loop 7-2 and motor casing 7 is close with the corresponding internal diameter of former design ironcasting motor casing, can be general with old-fashioned electric submersible pump, change motor casing when being convenient to old-fashioned electric submersible pump maintenance.
Claims (2)
1. small electrical submersible pump that motor casing is a weldment, this electricity submersible pump is formed by four sections, comprising: diffuser (1), inlet segment (3), upper bearing bracket (4) and motor casing (7); The inner chamber of described diffuser (1) is provided with impeller (2), and the upper end is connected with outlet pipe, and the lower end is connected with inlet segment (3) through bolt; Described inlet segment (3) lower end is connected with the upper end of upper bearing bracket (4); Described upper bearing bracket (4) lower end is connected with motor casing (7); The lower end of motor casing (7) is connected with step (10); Described upper bearing bracket (4), step (10) are connected with motor shaft through bearing (5) respectively; Described motor casing (7) inner chamber is provided with stator, rotor assembly (8); Wherein stator coil is connected with elastic cable paper (6), it is characterized in that: described motor casing (7) main body is a round steel pipe, its upper end and top ring (7-1) welding, lower end and lower loop (7-2) welding; Described top ring (7-1), lower loop (7-2) are circular ring; Described lower loop (7-2) endoporus is provided with jump ring (9).
2. the small electrical submersible pump that motor casing according to claim 1 is a weldment is characterized in that: the external diameter of the external diameter of described top ring (7-1) and upper bearing bracket (4) is close; The external diameter of the external diameter of described lower loop (7-2) and step (10) is close; The external diameter of described motor casing (7) is less than the external diameter of top ring (7-1), lower loop (7-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100252637A CN101818737B (en) | 2009-02-27 | 2009-02-27 | Miniature electric submersible pump with motor shell as welding piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100252637A CN101818737B (en) | 2009-02-27 | 2009-02-27 | Miniature electric submersible pump with motor shell as welding piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101818737A CN101818737A (en) | 2010-09-01 |
| CN101818737B true CN101818737B (en) | 2012-05-02 |
Family
ID=42653959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100252637A Active CN101818737B (en) | 2009-02-27 | 2009-02-27 | Miniature electric submersible pump with motor shell as welding piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101818737B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392835A (en) * | 2011-12-09 | 2012-03-28 | 王业慈 | Shell for small-size submerged electric pump and submerged electric pump using same |
| CN109531070B (en) * | 2018-12-19 | 2020-03-20 | 王祥 | Processing method of steel pipe welding type submersible pump shell |
-
2009
- 2009-02-27 CN CN2009100252637A patent/CN101818737B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101818737A (en) | 2010-09-01 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xuzhou Qianlong Pump Co. Ltd. Assignor: Wang Yeci Contract record no.: 2012320000596 Denomination of invention: Miniature electric submersible pump with motor shell as welding piece Granted publication date: 20120502 License type: Exclusive License Open date: 20100901 Record date: 20120516 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20100901 Assignee: Xuzhou Qianlong Pump Co. Ltd. Assignor: Wang Yeci Contract record no.: 2012320000596 Denomination of invention: Miniature electric submersible pump with motor shell as welding piece Granted publication date: 20120502 License type: Exclusive License Record date: 20120516 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Xuzhou Qianlong Pump Co. Ltd. Assignor: Wang Yeci Contract record no.: 2012320000596 Date of cancellation: 20180808 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20100901 Assignee: Xuzhou Qianlong Pump Co. Ltd. Assignor: Wang Yeci Contract record no.: 2018320000142 Denomination of invention: Miniature electric submersible pump with motor shell as welding piece Granted publication date: 20120502 License type: Common License Record date: 20180815 |