CN103486269A - Security sealing device and application for pumps - Google Patents
Security sealing device and application for pumps Download PDFInfo
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- CN103486269A CN103486269A CN201310427562.XA CN201310427562A CN103486269A CN 103486269 A CN103486269 A CN 103486269A CN 201310427562 A CN201310427562 A CN 201310427562A CN 103486269 A CN103486269 A CN 103486269A
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- ring
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- pressing plate
- conical ring
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Abstract
The invention relates to a security sealing device for pumps. The security sealing device is characterized by comprising a gland (2), a taper ring (4), a taper ring thrust spring (7), a taper sleeve (5) and a pressing plate (6). The taper ring (4) is installed in a groove (26) on the gland (2) and stressed by a spring (7). The taper sleeve (5) is fixedly installed on a shaft or shaft bushing (8). A conical surface (45) of the conical ring (4) is correspondingly matched with a conical surface (55) of the taper sleeve (5). An O-shaped sealing ring (65) is installed on the inner side of the pressing plate (6). A seal ring (58) is arranged between the inner annular surface of the taper sleeve (5) and the shaft or shaft bushing (8). The inner diameter ring surface (44) of the taper ring (4) is provided with a labyrinth seal groove (48). During use, the taper ring (4) functions as a labyrinth water seal. When a mechanical sealing device on a front pump shaft is damaged too much to fail in sealing and keeping pressure in a pump cavity, the taper ring is matched with the taper sleeve (5) to form rotational frictional sealing match of two conical surfaces under pressure. Therefore, pressure in the pump cavity is kept, medium in the pump cavity is prevented from leaking outside the pump, and safety protection is achieved.
Description
Technical field
What the present invention relates to is shaft sealer, the shaft sealer of particularly with mechanical seal device, connecting and being used in conjunction with, when the mechanical seal device experience damage of pump shaft waits accident conditions can't seal maintenance pump chamber pressure, while being the relatively large leakage of mechanical seal device generation of pump shaft, the sealing device can be in a period of time before pump stops plays seal action after (as mechanical seal device) and parking, keep pump chamber pressure, prevent that the medium in pump chamber from leaking into outside pump in a large number, reaches safety protection function; And play the effect of water seal arrangement when the normal operation of the mechanical seal device of pump shaft.
Background technique
Prior art as shown in Figure 1, is provided with water seal arrangement 3 on the gland 2 at pump shaft mechanical sealing device 1 rear portion, and cooling liquid or medium in mechanical seal device 1 back cavity are sealed, and what water seal arrangement 1 was the most frequently used is the mazy type water seal arrangement.
Water seal arrangement is subject to the restriction of its function and structure, can only play the Drain Resistance effect, and does not reach the effect of sealing, even the sealing effect of water seal is good again, also has larger amount of leakage, and particularly in the situation that pressure is higher, its amount of leakage is larger.
When water seal arrangement waits accident conditions can't seal maintenance pump chamber pressure in the damage of the experience of the mechanical seal device when pump shaft, while being the relatively large leakage of mechanical seal device generation of pump shaft, the pressure that water seal is born increases greatly, water seal arrangement can not play seal action before pump stops and after stopping, keep pump chamber pressure, can not prevent that the medium in pump chamber from leaking into outside pump in a large number.
Summary of the invention
Of the present invention stop be to provide a kind of pump safety sealing device, a kind of shaft sealer of with mechanical seal device, connecting and being used in conjunction with particularly, when the mechanical seal device experience damage of pump shaft waits accident conditions can't seal maintenance pump chamber pressure, while being the relatively large leakage of mechanical seal device generation of pump shaft, the sealing device plays seal action after can in a period of time before pump stops and stopping, keep pump chamber pressure, prevent that the medium in pump chamber from leaking into outside pump in a large number, reaches safety protection function; And play the effect of water seal arrangement when the normal operation of the mechanical seal device of pump shaft.
The present invention includes gland 2, conical ring 4, conical ring thrust spring 7, tapered sleeve 5, pressing plate 6, offer seam 21 grooves on gland 2 endoporus diametric planes, pressing plate 6 is fixedly connected with gland 2 outboard ends by bolt, conical ring 4 is arranged in the groove 26 formed between seam 21 grooves of gland 2 and pressing plate 6 inner side surfaces, the external diameter anchor ring 40 of conical ring 4 and gland upper groove 26 footpath anchor ring 22 gaps are movingly, external diameter anchor ring 40 and 22 of gland upper groove 26 footpath anchor rings at conical ring 4 are provided with O-ring seals 66, conical ring 4 and removable cooperation of groove 26 axial clearances, offer spring mounting hole 67 on the inner side surface of pressing plate 6, spring 7 is arranged on the anterior end surface 43 that acts on conical ring 4 in the spring mounting hole 67 on pressing plate 6 inner side surfaces, make conical ring 4 rear side end faces 46 keep fitting with the facade of groove 26 rear sides, anterior end surface 43 and 44 of internal diameter anchor rings at conical ring 4 offer the conical surface 45 that inclined-plane forms conical ring 4, tapered sleeve 5 is fixedly mounted on axle or axle sleeve 8, the external diameter anchor ring 51 of tapered sleeve 5 coordinates with pressing plate 6 internal orifice dimension anchor rings, 51 of the rear side end face 53 of tapered sleeve 5 and external diameter anchor rings offer the conical surface 55 that inclined-plane forms tapered sleeve 5, the conical surface 45 of conical ring 4 and the conical surface 55 corresponding matching of tapered sleeve 5, install and be provided with O-ring seals 65 on pressing plate 6 inner side surfaces, coordinate and sealed with the anterior end surface 43 of conical ring 4 when conical ring 4 moves forward, can be provided with close circle 58 at the inner ring surface of tapered sleeve 5 and axle or 8, axle sleeve, offer labyrinth seal groove 48 on the internal diameter anchor ring 44 of conical ring 4.
The seal arrangement that said structure forms is connected and is used in conjunction with mechanical seal device 1, is arranged on the rear side of pump shaft mechanical device 1.
The present invention is simple in structure, easily manufactured.When during use, at it, anterior mechanical seal device 1 works, side end face 46 maintenances thereafter under the thrust of spring 7 of the conical ring 4 of safety seal arrangement are fitted with the facade of gland upper groove 26 rear sides, and conical ring 4 plays mazy type water seal effect.
When the mechanical seal device 1 experience pulverizing damage of pump shaft waits accident conditions can't seal maintenance pump chamber pressure, while being the relatively large leakage of mechanical seal device generation of pump shaft, the pressure that the rear side end face 46 of conical ring 4 bears increases greatly, the thrust that conical ring 4 overcomes spring 7 is side shifting forward, the conical surface 45 of conical ring 4 is coordinated with the conical surface 55 of tapered sleeve 5, forming two conical surface spin frictions is sealed and matched, can in a period of time before pump stops, play seal action as mechanical seal device, and still play seal action after parking, keep pump chamber pressure, prevent that the medium in pump chamber from leaking into outside pump in a large number, reach safety protection function.
The present invention, than traditional labyrinth water seal arrangement, controls the amount of leakage performance more outstanding, stable performance.
The accompanying drawing explanation
Fig. 1 is the prior art structural representation.
Fig. 2 is embodiment of the present invention structural representation.
Embodiment
The present invention includes gland 2, conical ring 4, conical ring thrust spring 7, tapered sleeve 5, pressing plate 6, offer seam 21 grooves on gland 2 endoporus diametric planes, pressing plate 6 is fixedly connected with gland 2 outboard ends by bolt, conical ring 4 is arranged in the groove 26 formed between seam 21 grooves of gland 2 and pressing plate 6 inner side surfaces, the external diameter anchor ring 40 of conical ring 4 and gland upper groove 26 footpath anchor ring 22 gaps are movingly, external diameter anchor ring 40 and 22 of gland upper groove 26 footpath anchor rings at conical ring 4 are provided with O-ring seals 66, conical ring 4 and removable cooperation of groove 26 axial clearances, offer spring mounting hole 67 on the inner side surface of pressing plate 6, spring 7 is arranged on the anterior end surface 43 that acts on conical ring 4 in the spring mounting hole 67 on pressing plate 6 inner side surfaces, make conical ring 4 rear side end faces 46 keep fitting with the facade of groove 26 rear sides, anterior end surface 43 and 44 of internal diameter anchor rings at conical ring 4 offer the conical surface 45 that inclined-plane forms conical ring 4, tapered sleeve 5 is fixedly mounted on axle or axle sleeve 8, the external diameter anchor ring 51 of tapered sleeve 5 coordinates with pressing plate 6 internal orifice dimension anchor rings, 51 of the rear side end face 53 of tapered sleeve 5 and external diameter anchor rings offer the conical surface 55 that inclined-plane forms tapered sleeve 5, the conical surface 45 of conical ring 4 and the conical surface 55 corresponding matching of tapered sleeve 5, install and be provided with O-ring seals 65 on pressing plate 6 inner side surfaces, coordinate and sealed with the anterior end surface 43 of conical ring 4 when conical ring 4 moves forward, be provided with close circle 58 at the inner ring surface of tapered sleeve 5 and axle or 8, axle sleeve, offer labyrinth seal groove 48 on the internal diameter anchor ring 44 of conical ring 4.
As shown in Figure 2, the seal arrangement that said structure is formed is connected and is used in conjunction with mechanical seal device 1, is arranged on the rear side of pump shaft mechanical device 1.
Claims (2)
1. pump safety sealing device, it is characterized in that comprising gland (2), conical ring (4), conical ring thrust spring (7), tapered sleeve (5), pressing plate (6), offer seam (21) groove on gland (2) endoporus diametric plane, pressing plate (6) is fixedly connected with gland (2) outboard end by bolt, conical ring (4) is arranged in the groove (26) formed between seam (21) groove of gland (2) and pressing plate (6) inner side surface, the external diameter anchor ring (40) of conical ring (4) and gland upper groove (26) footpath anchor ring (22) gap are movingly, be provided with O-ring seals (66) between the external diameter anchor ring (40) of conical ring (4) and gland upper groove (26) footpath anchor ring (22), conical ring (4) and groove (26) the removable cooperation of axial clearance, offer spring mounting hole (67) on the inner side surface of pressing plate (6), spring (7) is arranged on the anterior end surface (43) that acts on conical ring (4) in the spring mounting hole (67) on pressing plate (6) inner side surface, make conical ring (4) rear side end face (46) keep fitting with the facade of groove (26) rear side, offer the conical surface (45) that inclined-plane forms conical ring (4) between the anterior end surface (43) of conical ring (4) and internal diameter anchor ring (44), tapered sleeve (5) is fixedly mounted on axle or axle sleeve (8), the external diameter anchor ring (51) of tapered sleeve (5) coordinates with pressing plate (6) internal orifice dimension anchor ring, offer the conical surface (55) that inclined-plane forms tapered sleeve (5) between the rear side end face (53) of tapered sleeve (5) and external diameter anchor ring (51), the conical surface (55) corresponding matching of the conical surface (45) of conical ring (4) and tapered sleeve (5), install and be provided with O-ring seals (65) on pressing plate (6) inner side surface, coordinate and sealed with the anterior end surface (43) of conical ring (4) while moving forward at conical ring (4), offer labyrinth seal groove (48) on the internal diameter anchor ring (44) of conical ring (4), can be provided with Mi Quan (58) between the inner ring surface of tapered sleeve (5) and axle or axle sleeve (8).
2. pump safety sealing device as claimed in claim 1, it is connected and is used in conjunction with mechanical seal device (1), is arranged on the rear side of pump shaft mechanical device (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310427562.XA CN103486269B (en) | 2013-09-19 | 2013-09-19 | Security sealing device and application for pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310427562.XA CN103486269B (en) | 2013-09-19 | 2013-09-19 | Security sealing device and application for pumps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103486269A true CN103486269A (en) | 2014-01-01 |
| CN103486269B CN103486269B (en) | 2015-07-08 |
Family
ID=49826745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310427562.XA Active CN103486269B (en) | 2013-09-19 | 2013-09-19 | Security sealing device and application for pumps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103486269B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2520818A (en) * | 2013-10-09 | 2015-06-03 | Snecma | Labyrinth seal and rotating machine comprising such a seal |
| CN105041384A (en) * | 2014-07-21 | 2015-11-11 | 摩尔动力(北京)技术股份有限公司 | End face sealing system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58152973A (en) * | 1982-02-17 | 1983-09-10 | イ−ジ−アンドジ−・シ−ロ−ル・ゲ−エムベ−ハ− | Sealing device for outboard stern pipe for oil lubricating type bearing |
| CN2080584U (en) * | 1990-12-11 | 1991-07-10 | 安徽省铜陵市节煤设备厂 | Stop sealer for impurity pump |
| CN2311656Y (en) * | 1997-11-13 | 1999-03-24 | 杜文武 | Sealing device of shaft end for water pump |
| CN101463903A (en) * | 2009-01-12 | 2009-06-24 | 浙江大学 | High-pressure controllable slide valve type mechanical combination sealing system |
| CN201696340U (en) * | 2010-04-12 | 2011-01-05 | 武汉船用机械有限责任公司 | Pump shaft sealing device |
| CN102313019A (en) * | 2011-08-04 | 2012-01-11 | 丹东克隆集团有限责任公司 | Friction ring type water sealing device |
| CN203516738U (en) * | 2013-09-19 | 2014-04-02 | 丹东克隆集团有限责任公司 | Pump-used security sealing device and application thereof |
-
2013
- 2013-09-19 CN CN201310427562.XA patent/CN103486269B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58152973A (en) * | 1982-02-17 | 1983-09-10 | イ−ジ−アンドジ−・シ−ロ−ル・ゲ−エムベ−ハ− | Sealing device for outboard stern pipe for oil lubricating type bearing |
| CN2080584U (en) * | 1990-12-11 | 1991-07-10 | 安徽省铜陵市节煤设备厂 | Stop sealer for impurity pump |
| CN2311656Y (en) * | 1997-11-13 | 1999-03-24 | 杜文武 | Sealing device of shaft end for water pump |
| CN101463903A (en) * | 2009-01-12 | 2009-06-24 | 浙江大学 | High-pressure controllable slide valve type mechanical combination sealing system |
| CN201696340U (en) * | 2010-04-12 | 2011-01-05 | 武汉船用机械有限责任公司 | Pump shaft sealing device |
| CN102313019A (en) * | 2011-08-04 | 2012-01-11 | 丹东克隆集团有限责任公司 | Friction ring type water sealing device |
| CN203516738U (en) * | 2013-09-19 | 2014-04-02 | 丹东克隆集团有限责任公司 | Pump-used security sealing device and application thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2520818A (en) * | 2013-10-09 | 2015-06-03 | Snecma | Labyrinth seal and rotating machine comprising such a seal |
| GB2520818B (en) * | 2013-10-09 | 2020-01-29 | Snecma | Labyrinth seal and rotating machine comprising such a seal |
| CN105041384A (en) * | 2014-07-21 | 2015-11-11 | 摩尔动力(北京)技术股份有限公司 | End face sealing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103486269B (en) | 2015-07-08 |
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