CN102042257A - Combined-type shaft seal device for centrifugal pump - Google Patents
Combined-type shaft seal device for centrifugal pump Download PDFInfo
- Publication number
- CN102042257A CN102042257A CN2009102293148A CN200910229314A CN102042257A CN 102042257 A CN102042257 A CN 102042257A CN 2009102293148 A CN2009102293148 A CN 2009102293148A CN 200910229314 A CN200910229314 A CN 200910229314A CN 102042257 A CN102042257 A CN 102042257A
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- Prior art keywords
- shaft seal
- oil
- filler
- axle
- joint sealing
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- 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.)
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- Sealing Devices (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a combined-type shaft seal device for a centrifugal pump, relating to shaft seal devices for centrifugal pumps. A shaft seal box is arranged on a shaft sleeve, a shaft seal gland is arranged on the end of the shaft seal box, a filler is arranged on the inner side of the shaft seal box, a pressure pad is arranged on the outer side of the filler, a pressure sheet is arranged on the shaft seal gland, the pressure sheet is inserted into the shaft seal box and then pressed on the pressure pad, a plurality of oil seal parts are arranged between the pressure sheet and the shaft sleeve, oil feed rings are arranged among the oil seal parts, a forced filling oil cup is arranged on the shaft seal box, and the forced filling oil cup is communicated with the oil feed rings. The combined-type shaft seal device has the advantages of good seal effect, high pump efficiency, low operation cost, low price, and low requirement for installation and maintenance, avoids frequent pump pausing when the filler is changed, and is suitable for pump shaft seal of centrifugal pumps; and normal work of the device is not influenced.
Description
Technical field
The present invention relates to the centrifugal pump shaft seal apparatus, is a kind of centrifugal pump built-up shaft seal apparatus specifically.
Background technique
We know, existing centrifugal pump packing shaft seal device, be to be provided with a joint sealing on axle sleeve, be provided with packing ring in the axle joint sealing, the packing ring both sides are provided with filler, axle joint sealing port is provided with Gland, this gland seal device, owing to be provided with packing ring in the axle joint sealing, the packing ring both sides are provided with filler, axle joint sealing port is provided with Gland, Gland pressure hour, sealing effect is poor, when Gland pressure is big, filler and shaft room frictional force are big, the power of pump is low, and filler is easy to wear, needs frequent termination of pumping to change filler, the operating cost height influences proper functioning.The existing mechanical seal arrangement costs an arm and a leg, and installation and maintenance require high.
Summary of the invention
The technical problem that the present invention solves is, it is poor to solve packing shaft seal device sealing effect, and the power of pump is low, and filler is easy to wear, needs frequent termination of pumping to change filler, and the operating cost height influences proper functioning; Mechanical seal device costs an arm and a leg, and the demanding problem of installation and maintenance provides a kind of good sealing effect, the power height of pump does not need frequent termination of pumping to change filler, and operating cost is low, do not influence proper functioning, cheap, installation and maintenance require low centrifugal pump built-up shaft seal apparatus.
Technological scheme of the present invention is, axle sleeve is provided with a joint sealing, and axle joint sealing port is provided with a sealed cover, and the main structure characteristics are, axle joint sealing inboard is provided with filler, the filler outside is provided with pressure pad, and the axle sealed cover is provided with compressing tablet, and compressing tablet inserts the axle joint sealing and is pressed on the pressure pad, be provided with some Oil sealing assemblies between compressing tablet and the axle sleeve, be provided with the oil-feed ring between Oil sealing assembly, the axle joint sealing is provided with forced filling oil cup, and forced filling oil cup is communicated with each oil-feed ring.
Be respectively equipped with the O RunddichtringO on compressing tablet of the present invention two ends and the axle joint sealing surface of contact.
The invention has the beneficial effects as follows that because axle joint sealing inboard is provided with filler, the filler outside is provided with pressure pad, the axle sealed cover is provided with compressing tablet, and compressing tablet inserts the axle joint sealing and is pressed on the pressure pad, is provided with some Oil sealing assemblies between compressing tablet and the axle sleeve, be provided with the oil-feed ring between Oil sealing assembly, the axle joint sealing is provided with forced filling oil cup, and forced filling oil cup is communicated with each oil-feed ring, good sealing effect, the power height of pump does not need frequent termination of pumping to change filler, operating cost is low, do not influence proper functioning, cheap, installation and maintenance require low.The present invention is applicable to the centrifugal pump shaft seal.
Description of drawings
Accompanying drawing is a kind of structural representation of the present invention, also is a kind of embodiment's schematic representation.
Embodiment
Centrifugal pump built-up shaft seal apparatus as shown in the figure, axle sleeve 1 is provided with a joint sealing 3, axle joint sealing 3 ports are provided with a sealed cover 11, axle joint sealing 3 inboards are provided with filler 2, filler 2 outsides are provided with pressure pad 4, axle sealed cover 11 is provided with compressing tablet 6, compressing tablet 6 inserts axle joint sealing 3 and is pressed on the pressure pad 4, is provided with some Oil sealing assemblies 10 between compressing tablet 6 and the axle sleeve 1, is provided with oil-feed ring 7 between Oil sealing assembly, axle joint sealing 3 is provided with forced filling oil cup 8, forced filling oil cup 8 is communicated with each oil-feed ring, and forced filling oil cup 8 can inject lubricant oil Oil sealing assembly 10, reduces the friction of axle and oil tight skeleton, guarantee sealing effect, increase oil sealing working life.Good sealing effect, the power height of pump does not need frequent termination of pumping to change filler, and operating cost is low, does not influence proper functioning, and is cheap, and installation and maintenance require low.Be respectively equipped with O RunddichtringO 5,9 on compressing tablet 6 two ends and axle joint sealing 3 surface of contact, can prevent to reveal liquid and enter the annular space and mixes, stop oil leakage to arrive joint sealing 3 outside with lubricant oil.
Claims (2)
1. centrifugal pump built-up shaft seal apparatus, axle sleeve is provided with a joint sealing, axle joint sealing port is provided with a sealed cover, it is characterized in that: axle joint sealing inboard is provided with filler, and the filler outside is provided with pressure pad, the axle sealed cover is provided with compressing tablet, compressing tablet inserts the axle joint sealing and is pressed on the pressure pad, is provided with some Oil sealing assemblies between compressing tablet and the axle sleeve, is provided with the oil-feed ring between Oil sealing assembly, the axle joint sealing is provided with forced filling oil cup, and forced filling oil cup is communicated with each oil-feed ring.
2. centrifugal pump built-up shaft seal apparatus according to claim 1 is characterized in that: be respectively equipped with the O RunddichtringO on compressing tablet two ends and the axle joint sealing surface of contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102293148A CN102042257A (en) | 2009-10-20 | 2009-10-20 | Combined-type shaft seal device for centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102293148A CN102042257A (en) | 2009-10-20 | 2009-10-20 | Combined-type shaft seal device for centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102042257A true CN102042257A (en) | 2011-05-04 |
Family
ID=43908694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102293148A Pending CN102042257A (en) | 2009-10-20 | 2009-10-20 | Combined-type shaft seal device for centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102042257A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123003A (en) * | 2011-11-20 | 2013-05-29 | 徐州徐工基础工程机械有限公司 | Rotating shaft transition device |
| CN104314823A (en) * | 2014-10-31 | 2015-01-28 | 江苏泰隆减速机股份有限公司 | Roots blower wallboard |
-
2009
- 2009-10-20 CN CN2009102293148A patent/CN102042257A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123003A (en) * | 2011-11-20 | 2013-05-29 | 徐州徐工基础工程机械有限公司 | Rotating shaft transition device |
| CN104314823A (en) * | 2014-10-31 | 2015-01-28 | 江苏泰隆减速机股份有限公司 | Roots blower wallboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110504 |