CN103967844A - Upper ring structure with cylinder and arranged on mining vertical submersible pump with exterior single-stage impeller - Google Patents
Upper ring structure with cylinder and arranged on mining vertical submersible pump with exterior single-stage impeller Download PDFInfo
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- CN103967844A CN103967844A CN201410123019.5A CN201410123019A CN103967844A CN 103967844 A CN103967844 A CN 103967844A CN 201410123019 A CN201410123019 A CN 201410123019A CN 103967844 A CN103967844 A CN 103967844A
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- impeller
- submersible pump
- pump
- ring structure
- upper ring
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Abstract
The invention provides an upper ring structure with a cylinder and arranged on a mining vertical submersible pump with an exterior single-stage impeller. The ring structure is assembled above the impeller of the mining vertical submersible pump, the outside of a motor stator component of the mining vertical submersible pump is provided with a cooling cover, and the submersible pump enables high-pressure water leaked from an upper ring of the impeller to enter a cooling cover to cool a motor. The upper ring structure is characterized in that the thin-walled cylinder with a proper height is welded to the upper portion of a traditional rear ring. The upper ring structure has the advantages that after the water pump is started, most of air in a cavity between the impeller and a pump cover is quickly exhausted by the high-pressure water, the surface of a single-end-face mechanical seal friction pair can be continuously cooled through water flows in the operation period of the water pump, and an active function is performed on improvement of reliability of a single-end-face mechanical seal and even the whole pump.
Description
Affiliated technical field
The present invention is a kind of band cylinder ring structure suitable for reading of external mounted single-stage impeller mine vertical submersible pump, be assemblied in the impeller top of mine vertical submersible pump, this mine vertical motor for submerged pump stator component outside is provided with cooling cover, and submersible pump utilizes the high pressure water that on impeller, choma leaks to enter cooling cover cooling motor.Belong to universal machine product manufacturing technology field.
Background technique
Mining submersible electric pump has the outstanding advantages such as structure, the construction investment of saving pumping plant of compact and portable, can significantly reduce draining cost, reduction of erection time, the mine vertical submersible pump of external mounted single-stage impeller is generally in middle-size and small-size hole with submersible pump, efficiency, higher than the mine vertical submersible pump of built-in type single-stage impeller, is applied very extensive.The type pump is equipped with a single mechanical end face seal at upper impeller conventionally, avoids impure sewage to enter in the grease chamber of double mechanical seal work, and double-mechanical sealing ensures the reliable operation of motor.Simultaneously in order to reduce the running temperature of motor, on pump cover, grease chamber, rotor, have a cooling weep hole, the gap of water between impeller and choma enters in the cavity between impeller and pump cover, and in supercooling weep hole enters the cooling cover of motor periphery, upper end at cooling cover has rhone, the water that temperature raises is discharged from rhone, plays the object that continues cooling motor.
Because single mechanical end face seal friction pair is in choma relatively traditionally, position that cooling weep hole is higher, in the time of pump startup, in cavity between impeller and pump cover, be air entirely, water is the light principle of gas heavily, the air of single mechanical end face seal friction vice division chief cannot be drained, and there is Properties of Dry Friction Problems in single mechanical end face seal friction pair, and friction pair is very easy to burn and inefficacy, herein, the type pump often breaks down.
Summary of the invention
Cause the problem of whole pump reliability decrease for fear of single mechanical end face seal friction pair Properties of Dry Friction Problems, the invention provides a kind of band cylinder ring structure suitable for reading of external mounted single-stage impeller mine vertical submersible pump, thereby ensure that the most of air in the cavity between impeller and pump cover can be squeezed away by current, current arrive rapidly single mechanical end face seal surface of friction pair, single mechanical end face seal friction pair obtains well cooling, thereby effectively avoid single mechanical end face seal friction pair to have continuous Properties of Dry Friction Problems, improved reliability and the working life of whole pump.
The technical solution adopted for the present invention to solve the technical problems is:
Thin walled cylinder is welded on the rear choma of tradition, thin walled cylinder upper-end surface is flushed or slightly exceed single mechanical end face seal friction pair plane, like this in the time that the gap of water between impeller and choma enters in the cavity between impeller and pump cover, the water level that air in cavity can be risen very soon squeezes, water level in cavity can constantly rise to thin walled cylinder upper-end surface, and outwards flow out in week and enter cooling weep hole from upper-end surface, until the cooling cover of motor stator periphery, single mechanical end face seal friction pair obtains well cooling.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described.
Accompanying drawing 1 is the main sectional view that does not adopt external mounted single-stage impeller mine vertical submersible pump example of the present invention: 1. upper bearing (metal)s in figure, 2. rotor, 3. cooling cover, 4. lower bearing, 5. machine oil, 6. double mechanical seal, 7. grease chamber, 8. single mechanical end face seal friction pair, 9. single mechanical end face seal spring, the 10. cavity between impeller and pump cover, choma on 11., 12, pump cover, 13, impeller, 14, volute.
Accompanying drawing 2 is traditional upper chomas, can in accompanying drawing 1, find out in the time that water enters the cavity 10 between impeller and pump cover, when arriving cooling weep hole, water progresses into the cooling cover of motor stator periphery, the air at single mechanical end face seal friction pair 8 places is in a high position, although air is subject to certain pressure, but may cannot discharge for a long time, single mechanical end face seal friction pair 8 state in dry friction for a long time, single mechanical end face seal friction pair may burn very soon.
Accompanying drawing 3 is the main sectional views that adopt external mounted single-stage impeller mine vertical submersible pump example of the present invention.
Accompanying drawing 4 is main sectional views with cylinder ring structure suitable for reading of the present invention.
Accompanying drawing 5 is the main sectional view partial enlarged drawings that adopt external mounted single-stage impeller mine vertical submersible pump example of the present invention.
Embodiment
For the band cylinder ring structure suitable for reading of a kind of external mounted single-stage impeller mine vertical submersible pump of the present invention, first directly process and obtain traditional upper choma by casting or round steel; Because traditional monolateral thickness of upper choma is all greater than 5mm conventionally, therefore prepare again the cylinder that thin-walled is 2-3mm, its internal diameter is greater than choma internal diameter, its external diameter is less than choma external diameter, and ensure that upper-end surface height after thin walled cylinder connects with traditional boxing suitable for reading is concordant or a little more than single mechanical end face seal friction pair plane, the band cylinder ring structure suitable for reading after welding as shown in Figure 4.Thisly novel do not increase too much processing cost with cylinder ring structure suitable for reading, but make the reliability of single mechanical end face seal and even whole pump obtain significantly promoting.
Claims (1)
1. the band cylinder ring structure suitable for reading of an external mounted single-stage impeller mine vertical submersible pump, be assemblied in the impeller top of mine vertical submersible pump, this mine vertical motor for submerged pump stator component outer installment cooling cover, submersible pump utilizes the high pressure water that on impeller, choma leaks to enter cooling cover cooling motor.Its innovation is thin walled cylinder to be welded in after tradition on choma, and thin walled cylinder upper-end surface is concordant or a little more than single mechanical end face seal friction pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123019.5A CN103967844B (en) | 2014-03-24 | 2014-03-24 | A kind of band cylinder ring structure suitable for reading of external mounted single-stage impeller mine vertical submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123019.5A CN103967844B (en) | 2014-03-24 | 2014-03-24 | A kind of band cylinder ring structure suitable for reading of external mounted single-stage impeller mine vertical submersible pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103967844A true CN103967844A (en) | 2014-08-06 |
| CN103967844B CN103967844B (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410123019.5A Active CN103967844B (en) | 2014-03-24 | 2014-03-24 | A kind of band cylinder ring structure suitable for reading of external mounted single-stage impeller mine vertical submersible pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN103967844B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870387A (en) * | 2017-02-17 | 2017-06-20 | 润泰救援装备科技河北有限公司 | A kind of floatation type hydraulic motor immersible pump |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4229301A1 (en) | 2020-10-19 | 2023-08-23 | Milwaukee Electric Tool Corporation | Stick pump assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3487785A (en) * | 1967-09-23 | 1970-01-06 | Egger & Co | Slip-ring sealing structure in a centrifugal pump |
| US3490064A (en) * | 1968-03-27 | 1970-01-13 | Worthington Corp | Bearing and mercury seal for the shafts in rotary devices such as pumps |
| GB1441653A (en) * | 1972-06-09 | 1976-07-07 | Burgmann Dichtungswerk Feodor | Cooled dual mechanical seal |
| CN2245685Y (en) * | 1995-02-25 | 1997-01-22 | 中国石化兰州炼油化工总厂 | Impeller automatic balance axial force device for magnetic transmission pump |
| DE3438662C2 (en) * | 1984-10-22 | 1997-01-30 | Sihi Gmbh & Co Kg | Centrifugal pump for hot media |
| US6099243A (en) * | 1999-01-29 | 2000-08-08 | Caterpillar Inc. | Centrifugal pump with seal cooling and debris flushing arrangement |
| CN200955513Y (en) * | 2006-09-22 | 2007-10-03 | 江苏振华泵业制造有限公司 | Self-cooling mechanical sealing device |
| CN201671823U (en) * | 2010-05-07 | 2010-12-15 | 上海凯泉泵业（集团）有限公司 | Single-stage and single-suction centrifugal pump |
-
2014
- 2014-03-24 CN CN201410123019.5A patent/CN103967844B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3487785A (en) * | 1967-09-23 | 1970-01-06 | Egger & Co | Slip-ring sealing structure in a centrifugal pump |
| US3490064A (en) * | 1968-03-27 | 1970-01-13 | Worthington Corp | Bearing and mercury seal for the shafts in rotary devices such as pumps |
| GB1441653A (en) * | 1972-06-09 | 1976-07-07 | Burgmann Dichtungswerk Feodor | Cooled dual mechanical seal |
| DE3438662C2 (en) * | 1984-10-22 | 1997-01-30 | Sihi Gmbh & Co Kg | Centrifugal pump for hot media |
| CN2245685Y (en) * | 1995-02-25 | 1997-01-22 | 中国石化兰州炼油化工总厂 | Impeller automatic balance axial force device for magnetic transmission pump |
| US6099243A (en) * | 1999-01-29 | 2000-08-08 | Caterpillar Inc. | Centrifugal pump with seal cooling and debris flushing arrangement |
| CN200955513Y (en) * | 2006-09-22 | 2007-10-03 | 江苏振华泵业制造有限公司 | Self-cooling mechanical sealing device |
| CN201671823U (en) * | 2010-05-07 | 2010-12-15 | 上海凯泉泵业（集团）有限公司 | Single-stage and single-suction centrifugal pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870387A (en) * | 2017-02-17 | 2017-06-20 | 润泰救援装备科技河北有限公司 | A kind of floatation type hydraulic motor immersible pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103967844B (en) | 2016-03-23 |
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