CN201377437Y - Mechanical seal of multilevel slurry pump - Google Patents
Mechanical seal of multilevel slurry pump Download PDFInfo
- Publication number
- CN201377437Y CN201377437Y CN200920117839U CN200920117839U CN201377437Y CN 201377437 Y CN201377437 Y CN 201377437Y CN 200920117839 U CN200920117839 U CN 200920117839U CN 200920117839 U CN200920117839 U CN 200920117839U CN 201377437 Y CN201377437 Y CN 201377437Y
- Authority
- CN
- China
- Prior art keywords
- ring
- internal
- external
- rotating ring
- axle sleeve
- 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 - Lifetime
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- Mechanical Sealing (AREA)
Abstract
A mechanical seal of a multilevel slurry pump comprises a sleeve, an adapting flange and a rear cover flange, a cavity formed by the sleeve, the adapting flange and the rear cover flange is provided with an internal sealing member and an external sealing member, the internal sealing member comprises an internal stationary ring and an internal movable ring, the external sealing member comprises an external stationary ring and an external movable ring, the internal stationary ring is fixedly connected with the rear cover flange, the external stationary ring is fixedly connected with the adapting flange, the internal moving ring and the external moving ring are respectively arranged on the sleeve and synchronously rotate along with the sleeve, an internal spring and an external spring are arranged among the internal moving ring, the external moving ring and the sleeve, the internal moving ring and the external moving ring are in sliding and sealing cooperation with the internal stationary ring and the external stationary ring, an O-shaped seal ring is respectively arranged at the joints of the internal moving ring, the external moving ring and the sleeve, and an O-shaped seal ring is arranged at the joint of the adapting flange and the rear cover flange. As the internal and external mechanical sealing members are arranged, when one sealing member is damaged, the other sealing member carries out compensation, so that the slurry pump does not leak media in high-pressure working environment. Synchronously, the internal sealing member is arranged so as to effectively prevent the leakage of lubricating oil or water, prevent the moving rings and the stationary rings from dry friction, and ensure that the moving rings and the stationary rings are always in excellent sealing state.
Description
Technical field
The utility model relates to a kind of slag stock pump, relates in particular to the mechanical seal of slag stock pump.
Background technique
The slag stock pump is generally used for the waterpower of industry materials such as coal, metallurgy and carries.The mechanical seal of existing slag stock pump realizes sealing by one group of black box.Because material concentration height through pump housing conveying, pressure is big, the sealability of this single sealing configuration is relatively poor, in use, dielectric leakage often occurs, and can't inject lubricant oil or water, because the destruction of sealing surface, dry friction often appears in Sealing, so that burns out Sealing, causes dielectric leakage.
Summary of the invention
Technical problem to be solved in the utility model provides the mechanical seal of the better slag stock pump of a kind of sealability, with the mechanical sealing performance of further raising slag stock pump.
Technical solution adopted in the utility model is: a kind of mechanical seal of multilayer sludge pump, comprise axle sleeve, adpting flange and bonnet flange, described axle sleeve, be provided with inside and outside two seals assembly in the cavity that adpting flange and bonnet flange form, stationary ring and interior rotating ring in black box comprises in described, described exterior seal assembly comprises outer stationary ring and outer rotating ring, interior stationary ring is fixedlyed connected with the bonnet flange, outer stationary ring is fixedlyed connected with adpting flange, interior rotating ring and outer rotating ring place on the axle sleeve and with axle sleeve respectively and rotate synchronously, be provided with inner spring and outer spring between the ear end face of interior rotating ring and outer rotating ring and the axle sleeve, the front-end face of interior rotating ring and outer rotating ring under the effect of inner spring and outer spring with interior stationary ring with outside the ear end face of stationary ring be slipper seal and cooperate, interior rotating ring and outer rotating ring and axle sleeve connecting part are provided with O-ring seals respectively, be by O-ring seals and axle sleeve and be sealed and matched, the junction of adpting flange and bonnet flange is provided with O-ring seals.
The beneficial effects of the utility model are: because inside and outside twice mechanical sealing assembly is set in the cavity of axle sleeve and adpting flange (pump housing), when one black box is damaged, can compensate by another road black box, thereby guarantee that the slag stock pump can not leak at the operations involving high pressure surrounding medium.Simultaneously, interior black box is set, can effectively prevents the leakage of lubricant oil or water, prevent that dry friction from appearring in dynamic and static ring, guarantee that dynamic and static ring is in good sealing state all the time.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is a kind of embodiment's of the utility model a structural representation.
Drawing explanation: 1, locking ring, 2, the bonnet flange, 3, interior stationary ring, 4, interior rotating ring, 5, inner spring, 6, outer stationary ring, 7, adpting flange, 8, outer spring, 9, outer rotating ring, 10, axle sleeve, 11, the O RunddichtringO, 12, through hole (water injection hole, oil hole or cleanout), 13, pin.
Embodiment
As shown in Figure 1, the mechanical seal of present embodiment multilayer sludge pump, comprise axle sleeve 10, adpting flange 7, bonnet flange 2, interior black box and exterior seal assembly, interior black box and exterior seal assembly place in the cavity of axle sleeve 10, adpting flange 7 and 2 formation of bonnet flange; Stationary ring 3 and interior rotating ring 4 in black box comprises in described, exterior seal assembly comprises outer stationary ring 6 and outer rotating ring 9; Interior stationary ring 3 is fixedlyed connected by screw (being sign among the figure) with bonnet flange 2, and outer stationary ring 6 and adpting flange 7 are provided with cotter way (being sign among the figure), connect by pin 13; Interior rotating ring 4 and outer rotating ring 9 place respectively on the axle sleeve 10 unidirectional steps and rotate synchronously with axle sleeve 10, the step of axle sleeve 10 is provided with inner spring seat and outer spring seat (being sign among the figure), inside and outside spring 5,8 places respectively between the ear end face and inside and outside spring seat of inside and outside rotating ring 4,9, the front-end face of interior rotating ring 4 and outer rotating ring 9 under the effect of inner spring 5 and outer spring 8 with interior stationary ring 3 with outside stationary ring 6 be slipper seal and cooperate; Interior rotating ring 4 and outer rotating ring 9 are provided with O-ring seals 11 respectively with axle sleeve 10 connecting parts, be by O-ring seals 11 and axle sleeve 10 and be sealed and matched, two O-ring seals 11 place the seal groove (figure does not indicate) of axle sleeve 10, adpting flange 7 also is provided with O-ring seals 11 with the junction of bonnet flange 3, O-ring seals 11 is fixed on the bonnet flange 2 by briquetting (indicating among the figure), and bonnet flange 2 is installed on the adpting flange 7 by set screw (being sign among the figure).Adpting flange 7 is provided with through hole 12, and described through hole 12 is used for water injection hole, oil hole or cleanout.
Claims (3)
1, a kind of mechanical seal of multilayer sludge pump, it is characterized in that comprising axle sleeve (10), adpting flange (7) and bonnet flange (2), described axle sleeve (10), be provided with inside and outside two seals assembly in the cavity that adpting flange (7) and bonnet flange (2) form, black box comprises interior stationary ring (3) and interior rotating ring (4) in described, described exterior seal assembly comprises outer stationary ring (6) and outer rotating ring (9), interior stationary ring (3) is fixedlyed connected with bonnet flange (2), outer stationary ring (6) is fixedlyed connected with adpting flange (7), interior rotating ring (4) and outer rotating ring (9) place axle sleeve (10) upward and with axle sleeve (10) to rotate synchronously respectively, be provided with inner spring (5) and outer spring (8) between the ear end face of interior rotating ring (4) and outer rotating ring (9) and the axle sleeve, the front-end face of interior rotating ring (4) and outer rotating ring (9) under the effect of inner spring (5) and outer spring (8) with interior stationary ring (3) and outside the ear end face of stationary ring (6) be slipper seal and cooperate, interior rotating ring (4) and outer rotating ring (9) are provided with O-ring seals (11) respectively with axle sleeve (10) connecting part, be by O-ring seals (11) and axle sleeve (10) and be sealed and matched, adpting flange (7) is provided with O-ring seals (11) with the junction of bonnet flange (3).
2, the mechanical seal of multilayer sludge pump according to claim 1, it is characterized in that described interior rotating ring (4) and outer rotating ring (9) place respectively on the unidirectional step of axle sleeve (10) with axle sleeve (10) rotation synchronously, the step of axle sleeve (10) is provided with inner spring seat and outer spring seat, and inside and outside spring (5,8) places respectively between the ear end face and inside and outside spring seat of inside and outside rotating ring (4,9).
3, the mechanical seal of multilayer sludge pump according to claim 1 and 2 is characterized in that described adpting flange (7) is provided with through hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920117839U CN201377437Y (en) | 2009-04-14 | 2009-04-14 | Mechanical seal of multilevel slurry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920117839U CN201377437Y (en) | 2009-04-14 | 2009-04-14 | Mechanical seal of multilevel slurry pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201377437Y true CN201377437Y (en) | 2010-01-06 |
Family
ID=41517545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920117839U Expired - Lifetime CN201377437Y (en) | 2009-04-14 | 2009-04-14 | Mechanical seal of multilevel slurry pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201377437Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532498B (en) * | 2009-04-14 | 2012-10-03 | 苏瑞益 | Mechanical seal of multilayer sludge pump |
-
2009
- 2009-04-14 CN CN200920117839U patent/CN201377437Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532498B (en) * | 2009-04-14 | 2012-10-03 | 苏瑞益 | Mechanical seal of multilayer sludge pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100106 Effective date of abandoning: 20090414 |