CN204476849U - A kind of canned motorpump impeller of balance shield pump axial force - Google Patents
A kind of canned motorpump impeller of balance shield pump axial force Download PDFInfo
- Publication number
- CN204476849U CN204476849U CN201420817741.4U CN201420817741U CN204476849U CN 204476849 U CN204476849 U CN 204476849U CN 201420817741 U CN201420817741 U CN 201420817741U CN 204476849 U CN204476849 U CN 204476849U
- Authority
- CN
- China
- Prior art keywords
- pitch circle
- impeller
- standard pitch
- canned motorpump
- return port
- 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.)
- Expired - Fee Related
Links
- 238000010992 reflux Methods 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 abstract description 3
- 230000001050 lubricating Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 5
- KOPOQZFJUQMUML-UHFFFAOYSA-N Chlorosilane Chemical group Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 3
- 239000005046 Chlorosilane Substances 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 229920005591 polysilicon Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 210000004940 Nucleus Anatomy 0.000 description 1
- FDNAPBUWERUEDA-UHFFFAOYSA-N Silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 1
- ZDHXKXAHOVTTAH-UHFFFAOYSA-N Trichlorosilane Chemical compound Cl[SiH](Cl)Cl ZDHXKXAHOVTTAH-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000005049 silicon tetrachloride Substances 0.000 description 1
- 230000003068 static Effects 0.000 description 1
- 239000005052 trichlorosilane Substances 0.000 description 1
Abstract
The utility model discloses a kind of canned motorpump impeller of balance shield pump axial force, its main body is canned motorpump impeller, described canned motorpump impeller is provided with the described canned motorpump impeller center of circle be the center of circle large standard pitch circle and little standard pitch circle, described large standard pitch circle and described little standard pitch circle are respectively equipped with evenly distributed return port, and the described return port aperture on described little standard pitch circle is greater than the described return port aperture on described large standard pitch circle.The utility model has the advantage of, under the prerequisite ensureing pump efficiency, meet lubricating fluid capacity of reflux in the pump housing, ensure canned motorpump rotor axial equilibrium of forces in running simultaneously, thus extend the working life of canned motorpump.
Description
Technical field:
The utility model relates to a kind of impeller, particularly relates to a kind of canned motorpump impeller of balance shield pump axial force.
Background technique:
Canned motorpump belongs to centrifugal unprssurized pump, and pump and drive motor are all closed in the pressurized container that a pumped medium is full of, and this pressurized container only has static seal.This structure eliminates the sealing device for rotary shaft that conventional centrifugal pump has, and can accomplish complete No leakage.Canned motorpump is linked togather pump and motor, and the rotor of motor and the impeller of pump are fixed on same root axle, and utilize housing the rotor of motor and stator to be separated, rotor operates in the medium be transferred, and its power passes to rotor by stator field.
Because canned motorpump has No leakage feature, be used in polysilicon production process.Canned motorpump is the nucleus equipment of conveying material in polysilicon production process, and the stable operation of this equipment is the prerequisite guaranteeing administration measure, and the requirement particularly run continuously canned motorpump is important especially.The medium that canned motorpump impeller return port uses when designing is water, density 1000kg/m
3, and being applied in field of polysilicon production, medium is chlorosilane (trichlorosilane, silicon tetrachloride), density 1200 ~ 1400kg/m
3because chlorosilane density is greater than water density, return port on canned motorpump impeller is few and aperture is less, and the chlorosilane before and after canned motorpump impeller can not reflux in time, causes pressure imbalance before and after canned motorpump impeller, axial force imbalance problem highlights gradually, by bearing, axle sleeve, thrust disc, damage in impeller, cause the instability of production, even have a strong impact on quality of product.
Model utility content:
The purpose of this utility model is the canned motorpump impeller providing a kind of balance shield pump axial force, under the prerequisite ensureing pump efficiency, meet lubricating fluid capacity of reflux in the pump housing, ensure canned motorpump rotor axial equilibrium of forces in running simultaneously, thus extend the working life of canned motorpump.
The utility model is implemented by following technological scheme: a kind of canned motorpump impeller of balance shield pump axial force, its main body is canned motorpump impeller, described canned motorpump impeller is provided with the described canned motorpump impeller center of circle be the center of circle large standard pitch circle and little standard pitch circle, described large standard pitch circle and described little standard pitch circle are respectively equipped with evenly distributed return port, and the described return port aperture on described little standard pitch circle is greater than the described return port aperture on described large standard pitch circle.
Described large standard pitch circle is identical with the described return port quantity on described little standard pitch circle, is 7.
Described return port aperture on described little standard pitch circle is 10mm-14mm, and the described return port aperture on described large standard pitch circle is 4mm-9mm.
Advantage of the present utility model: meet lubricating fluid capacity of reflux in the pump housing under the prerequisite ensureing pump efficiency, ensures canned motorpump rotor axial equilibrium of forces in running simultaneously, thus extends the working life of canned motorpump.The utility model structure is simple, design is convenient, it is quick to manufacture, and has good effect in actual use.Avoid because axial force is uneven and make bearing, axle sleeve, thrust disc, damage in impeller, ensureing to produce continuous and steady operation.
Accompanying drawing illustrates:
Fig. 1 is for improving front canned motorpump blade wheel structure schematic diagram.
Fig. 2 is the canned motorpump blade wheel structure schematic diagram of a kind of balance shield pump of the utility model axial force.
Canned motorpump impeller 1, large standard pitch circle 2, little standard pitch circle 3, return port 4.
Embodiment: a kind of canned motorpump impeller of balance shield pump axial force, its main body is canned motorpump impeller 1, canned motorpump impeller 1 is provided with canned motorpump impeller 1 center of circle be the center of circle large standard pitch circle 2 and little standard pitch circle 3, large standard pitch circle 2 and little standard pitch circle 3 are respectively equipped with evenly distributed return port 4, and return port 4 aperture on little standard pitch circle 3 is greater than return port 4 aperture on large standard pitch circle 2.Large standard pitch circle 2 is identical with return port 4 quantity on little standard pitch circle 3, is 7.Return port 4 aperture on little standard pitch circle 3 is 12mm, and return port 4 aperture on large standard pitch circle 2 is 5mm.
Claims (3)
1. the canned motorpump impeller of a balance shield pump axial force, its main body is canned motorpump impeller, it is characterized in that, described canned motorpump impeller is provided with the described canned motorpump impeller center of circle be the center of circle large standard pitch circle and little standard pitch circle, described large standard pitch circle and described little standard pitch circle are respectively equipped with evenly distributed return port, and the described return port aperture on described little standard pitch circle is greater than the described return port aperture on described large standard pitch circle.
2. the canned motorpump impeller of a kind of balance shield pump axial force according to claim 1, is characterized in that, described large standard pitch circle is identical with the described return port quantity on described little standard pitch circle, is 7.
3. the canned motorpump impeller of a kind of balance shield pump axial force according to claim 1, is characterized in that, the described return port aperture on described little standard pitch circle is 10mm-14mm, and the described return port aperture on described large standard pitch circle is 4mm-9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420817741.4U CN204476849U (en) | 2014-12-22 | 2014-12-22 | A kind of canned motorpump impeller of balance shield pump axial force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420817741.4U CN204476849U (en) | 2014-12-22 | 2014-12-22 | A kind of canned motorpump impeller of balance shield pump axial force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204476849U true CN204476849U (en) | 2015-07-15 |
Family
ID=53632641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420817741.4U Expired - Fee Related CN204476849U (en) | 2014-12-22 | 2014-12-22 | A kind of canned motorpump impeller of balance shield pump axial force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204476849U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907348A (en) * | 2015-12-23 | 2017-06-30 | 德昌电机(深圳)有限公司 | Impeller and the pump using the impeller |
-
2014
- 2014-12-22 CN CN201420817741.4U patent/CN204476849U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907348A (en) * | 2015-12-23 | 2017-06-30 | 德昌电机(深圳)有限公司 | Impeller and the pump using the impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20211222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |