CN201794774U - Mechanical sealing device for hot water pump - Google Patents
Mechanical sealing device for hot water pump Download PDFInfo
- Publication number
- CN201794774U CN201794774U CN2010202847927U CN201020284792U CN201794774U CN 201794774 U CN201794774 U CN 201794774U CN 2010202847927 U CN2010202847927 U CN 2010202847927U CN 201020284792 U CN201020284792 U CN 201020284792U CN 201794774 U CN201794774 U CN 201794774U
- Authority
- CN
- China
- Prior art keywords
- pump
- gland
- axle sleeve
- hot water
- insulation blocking
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
- Mechanical Sealing (AREA)
Abstract
The utility model discloses a mechanical sealing device for a hot water pump. The mechanical sealing device comprises a gland (4) fixed on a pump body (6), a shaft sleeve (1) sleeved on a pump shaft (7), a dynamic ring (2) sleeved on the shaft sleeve (1) and circumferentially limited on the shaft sleeve (1), a static ring (3) sleeved on the shaft sleeve (1) and circumferentially limited on the gland (4), and a pressure spring (5) arranged between the static ring (3) and the gland (4). The static ring (3) is in press fit on the end face of the dynamic ring (2); and an isolation protective device is arranged between the pump body (6) and the radial direction of the pump shaft (7). The mechanical sealing device for a hot water pump has good reliability, good stability, good sealing effect and long service lifetime.
Description
Technical field
The utility model relates to a kind of seal arrangement, specifically is a kind of hot water pump mechanical seal device.
Background technique
At present, because departments such as metallurgy, electric power, water conservancy, chemical industry, oil need carry high-temp liquid or gas liquid mixture, very high requirement has been proposed for the resistance to high temperature of mechanical seal.Mostly be provided with mechanical seal device between the pump shaft of existing hot water pump and the pump housing.
As shown in Figure 1, be existing hot water pump mechanical seal device, comprise the gland 5 ' that is fixed on the pump housing 6 ', be socketed in axle sleeve 1 ' on the pump shaft, be socketed in that axle sleeve 1 ' is gone up and circumferentially spacing on axle sleeve 1 ' rotating ring 2 ', be socketed in that axle sleeve 1 ' is gone up and circumferentially spacing on gland 5 ' stationary ring 3 ', be located at the holddown spring 4 ' between stationary ring 3 ' and the gland 5 '; One end of this holddown spring 4 ' and the ear end face of stationary ring 3 ' offset, and the interior edge face of the other end and gland 5 ' offsets.Stationary ring 3 ' is in press fit (promptly being close to) state with rotating ring 2 '.Axle sleeve 1 ' and pump shaft, rotating ring 2 ' and axle sleeve 1 ', stationary ring 3 ' and gland 5 ', all sealings between the gland 5 ' and the pump housing 6 '.
When hot water pump is worked, rotation along with pump shaft, axle sleeve 1 ' and rotating ring 2 ' will rotate under the drive of pump shaft together simultaneously, stationary ring 3 ' does not then rotate relative to pump shaft, but under the effect of holddown spring 4 ', holddown spring 4 ' must push stationary ring 3 ', and the front end press fit (promptly being close to) that makes stationary ring 3 ' is on the ear end face of rotating ring 2 ', make stationary ring 3 ' and rotating ring 2 ' form sealed friction surface, thereby realize inside and extraneous mechanical seal hot water pump.
There is following shortcoming in the hot water pump of above prior art with mechanical seal device: because in high-temperature fluid or gas liquid mixture, high temperature that these media produce and the fricative high temperature of sealing anchor ring itself all can increase the wearing and tearing of sealing anchor ring, cause the seal ring face seal to lose efficacy easily; And the impurity in these liquid or the gas liquid mixture may enter into the sealing anchor ring, also can increase the seal ring surface wear.In addition, be installed in the influence that seal ring on axle sleeve, stationary ring, the rotating ring is subjected to high-temperature fluid or gas liquid mixture, aging easily.More than these reasons make this device reliability, stability, sealing effect all poor so that shorten working life of this device greatly.
The model utility content
The technical problems to be solved in the utility model is, overcomes the defective of above prior art, provides a kind of reliability, stability, sealing effect all good, so that the hot water pump mechanical seal device of long service life.
For solving the problems of the technologies described above, the utility model adopts a kind of like this hot water pump mechanical seal device, comprise the gland that is fixed on the pump housing, be socketed in axle sleeve on the pump shaft, be socketed on the axle sleeve and circumferentially spacing on axle sleeve rotating ring, be socketed on the axle sleeve and circumferential spacing on gland stationary ring, be located at the holddown spring between stationary ring and the gland; Described stationary ring is force-fitted in through holddown spring on the end face of rotating ring, and the described pump housing and pump shaft also are provided with isolating and protecting device between radially.
Described isolating and protecting device comprises the insulation blocking sleeve that is fixed in the pump housing; described insulation blocking sleeve, axle sleeve, pump shaft, gland form a cavity each other; the described pump housing is provided with the feed pathway that is communicated with cavity; described gland is provided with the liquid outlet channel that is communicated with cavity, and described insulation blocking is set between the pump housing and the pump shaft and with both and seals.
Described axle sleeve is the bevel gear shape near the side of an end of outlet, and described insulation blocking is arranged with the taper hole that matches with this axle sleeve conical surface.
Described insulation blocking is set between the pump housing and the pump shaft and with both sealings and is meant, is provided with O type circle between the described insulation blocking sleeve and the pump housing, is provided with nockbush between described insulation blocking sleeve and the pump shaft.
It also comprises circlip the utility model, and described nockbush passes through the circlip axial limiting in insulation blocking sleeve.After adopting above structure; the utility model seal arrangement compared with prior art; have the following advantages: owing to also be provided with isolating and protecting device between the pump shaft and the pump housing; this isolating and protecting device is fixed in the pump housing; built-in O type circle between the pump housing and insulation blocking sleeve; edge is joined nockbush in insulation blocking sleeve, plays the purpose of isolating high-temp liquid or gas like this, has controlled large granular impurity effectively and has entered the sealing anchor ring.The seal failure of having protected the reason owing to high temperature and impurity to cause.The gland and the pump housing at corresponding mechanical seal device place are provided with cooling liquid feed pathway and cooling liquid liquid outlet channel, the bevel gear shape that meets fluid mechanics principle in addition in the sleeve head increase, when the circulating cooling liquid feed pathway flow into space between gland and the pump shaft, cooling liquid is taken advantage of a situation mechanical seal device is cooled off, and the cooling liquid that temperature raises can flow out from the cooling liquid liquid outlet channel, the final cooling loop that forms, effectively reduce stationary ring and rotating ring because of the temperature that friction raises, strengthened the sealing effect of mechanical seal device.Can reduce face pressure like this, reach the high loaded process purpose; Generate liquid film, reduce friction and wear and tear, reduce frictional loss; Take away fricative heat, solve heat dissipation problem, reduce the possibility of seal failure, thereby improve the working life of sealing; In addition, avoid being subjected to the direct influence of high-temperature fluid or gas liquid mixture, be difficult for aging like this for being installed in seal ring on axle sleeve, stationary ring, the rotating ring, can increase working life, produce liquid circulation by self structure like this, need not supplementary equipment, save the device space.In sum, mechanical seal device reliability of the present utility model, stability, sealing effect are all good, so that seal life is long.
Description of drawings
Accompanying drawing 1 is the cross-sectional schematic of the mechanical seal device of prior art.
Accompanying drawing 2 is cross-sectional schematic of seal arrangement of the present utility model.
Shown in the prior art figure: 1 ', axle sleeve, 2 ', rotating ring, 3 ', stationary ring, 4 ', holddown spring, 5 ', gland, 6 ', the pump housing.
Shown in the utility model figure: 1, axle sleeve, 2, rotating ring, 3, stationary ring, 4, gland, 5, holddown spring; 6, the pump housing, 7, pump shaft, 8, insulation blocking sleeve, 9, nockbush, 10, Cock screw; 11, O type circle, 12, circlip, 13, feed pathway, 14, liquid outlet channel.
Embodiment
Below in conjunction with accompanying drawing and concrete enforcement the utility model is described in further detail.
As shown in Figure 2, hot water pump mechanical seal device of the present utility model, comprise the gland 4 that is fixed on the pump housing 6, be socketed in axle sleeve 1 on the pump shaft 7, be socketed on the axle sleeve 1 and circumferentially spacing on axle sleeve 1 rotating ring 2, be socketed on the axle sleeve 1 and circumferentially spacing on gland 4 stationary ring 3, be located at the holddown spring 5 between stationary ring 3 and the gland 4; One end of this holddown spring 5 and the ear end face of stationary ring 3 offset, and the other end and gland 4 offset.Described stationary ring 3 is force-fitted on the end face of rotating ring 2 through holddown spring 5.Also be provided with isolating and protecting device between the described pump housing 6 and the pump shaft 7.
Described isolating and protecting device comprises the insulation blocking sleeve 8 that is fixed in the pump housing 6; described insulation blocking sleeve 8, axle sleeve 1, pump shaft 7, gland 4 form a cavity each other; the described pump housing 6 is provided with the feed pathway 13 that is communicated with cavity; described gland 4 is provided with the liquid outlet channel 14 that is communicated with cavity; described insulation blocking sleeve 8 is located between the pump housing 6 and the pump shaft 7 and with both and seals; be to be provided with O type circle 11 between the described insulation blocking sleeve 8 and the pump housing 6, be provided with nockbush 9 between described insulation blocking sleeve 8 and the pump shaft 7.
Described axle sleeve 1 is the bevel gear shape near the side of an end of outlet; meet hydromechanical principle like this; the effect that is equivalent to blade; can drive cooling liquid and realize circulation; described insulation blocking sleeve 8 is provided with the taper hole that matches with this axle sleeve 1 conical surface, is provided with certain clearance between the bevel gear shape head of axle sleeve 1 and the taper hole certainly.
Hot water pump mechanical seal device of the present utility model, it also comprises circlip 12, described nockbush 9 passes through circlip 12 axial limitings in insulation blocking sleeve 8.
Certainly; between axle sleeve 1 and the pump shaft 7, between axle sleeve 1 and the rotating ring 2, between stationary ring 3 and the gland 4, between gland 4 and the pump housing 6, all be provided with O shape circle or seal washer between the pump housing 6 and the insulation blocking sleeve 8 to reach the effect of sealing; this is the common prior art of mechanical industry, so be not described in detail at this.
When hot water pump was worked, nockbush 9 played the purpose of isolating high-temp liquid or gas, has controlled large granular impurity effectively and has entered the sealing anchor ring.The seal failure of having protected the reason owing to high temperature and impurity to cause.Guaranteed that pressure medium and coolant pressure reach balance.When pump shaft 7 rotations, drive axle sleeve 1 and rotate, pump shaft head rotation at this moment produces hydrodynamic pressure, guarantees that circulating cooling liquid produces self-loopa, so just takes away the heat that friction pair produces, and solves heat dissipation problem, prolongs the working life of Sealing.
Claims (5)
1. hot water pump mechanical seal device, comprise the gland (4) that is fixed on the pump housing (6), be socketed in axle sleeve (1) on the pump shaft (7), be socketed in that axle sleeve (1) is gone up and circumferentially spacing on axle sleeve (1) rotating ring (2), be socketed in that axle sleeve (1) is gone up and circumferentially spacing on gland (4) stationary ring (3), be located at the holddown spring (5) between stationary ring (3) and the gland (4); Described stationary ring (3) is force-fitted on the end face of rotating ring (2) through holddown spring (5), it is characterized in that: the described pump housing (6) and pump shaft (7) also are provided with isolating and protecting device between radially.
2. hot water pump mechanical seal device according to claim 1; it is characterized in that: described isolating and protecting device comprises the insulation blocking sleeve (8) that is fixed in the pump housing (6); described insulation blocking sleeve (8), axle sleeve (1), pump shaft (7), gland (4) form a cavity each other; the described pump housing (6) is provided with the feed pathway (13) that is communicated with cavity; described gland (4) is provided with the liquid outlet channel (14) that is communicated with cavity, and described insulation blocking sleeve (8) is located between the pump housing (6) and the pump shaft (7) and with both and seals.
3. hot water pump mechanical seal device according to claim 2 is characterized in that: described axle sleeve (1) is the bevel gear shape near the side of an end of outlet, and described insulation blocking sleeve (8) is provided with the taper hole that matches with this axle sleeve (1) conical surface.
4. hot water pump mechanical seal device according to claim 2; it is characterized in that: described insulation blocking sleeve (8) is located between the pump housing (6) and the pump shaft (7) and with both sealings and is meant; be provided with O type circle (11) between the described insulation blocking sleeve (8) and the pump housing (6), be provided with nockbush (9) between described insulation blocking sleeve (8) and the pump shaft (7).
5. hot water pump mechanical seal device according to claim 4 is characterized in that: it also comprises circlip (12), and described nockbush (9) passes through circlip (12) axial limiting in insulation blocking sleeve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202847927U CN201794774U (en) | 2010-08-03 | 2010-08-03 | Mechanical sealing device for hot water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202847927U CN201794774U (en) | 2010-08-03 | 2010-08-03 | Mechanical sealing device for hot water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201794774U true CN201794774U (en) | 2011-04-13 |
Family
ID=43849683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202847927U Expired - Lifetime CN201794774U (en) | 2010-08-03 | 2010-08-03 | Mechanical sealing device for hot water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201794774U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410374A (en) * | 2011-11-22 | 2012-04-11 | 四川理工学院 | Sealing structure of tapered slip ring with self-compensating property |
| CN102619984A (en) * | 2012-03-29 | 2012-08-01 | 大连华阳光大密封有限公司 | Mechanical sealing device for high pressure working condition |
| CN102705228A (en) * | 2012-06-14 | 2012-10-03 | 浙江威隆机械科技有限公司 | Double-support rotor pump with parallel sealing surfaces |
| CN102853085A (en) * | 2012-09-24 | 2013-01-02 | 北京化工大学 | Anti-jamming device and anti-jamming method for sealing gas end faces |
| CN104100718A (en) * | 2014-07-03 | 2014-10-15 | 丹东克隆集团有限责任公司 | Mechanical seal device with external spring sheet isolation spring |
| CN104132143A (en) * | 2014-08-04 | 2014-11-05 | 宁波伏尔肯机械密封件制造有限公司 | Silicon carbide mechanical seal device |
| CN104395655A (en) * | 2012-08-29 | 2015-03-04 | 伊格尔工业股份有限公司 | Mechanical seal |
| CN108368886A (en) * | 2015-12-11 | 2018-08-03 | 洛普兰控股公司 | Holding meanss for being applied in sealing element on axis |
| CN109494920A (en) * | 2018-10-19 | 2019-03-19 | 陕西航空电气有限责任公司 | Aviation pump motor movable sealing structure and aviation pump motor |
| CN110440003A (en) * | 2019-06-25 | 2019-11-12 | 杭州电子科技大学 | One kind is based on pulsation performance inclusion seal device |
| CN110821735A (en) * | 2019-11-04 | 2020-02-21 | 大连双龙泵业制造有限公司 | Novel hydraulic turbine mechanical sealing device |
-
2010
- 2010-08-03 CN CN2010202847927U patent/CN201794774U/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410374A (en) * | 2011-11-22 | 2012-04-11 | 四川理工学院 | Sealing structure of tapered slip ring with self-compensating property |
| CN102619984A (en) * | 2012-03-29 | 2012-08-01 | 大连华阳光大密封有限公司 | Mechanical sealing device for high pressure working condition |
| CN102705228A (en) * | 2012-06-14 | 2012-10-03 | 浙江威隆机械科技有限公司 | Double-support rotor pump with parallel sealing surfaces |
| CN102705228B (en) * | 2012-06-14 | 2015-04-15 | 浙江威隆机械科技有限公司 | Double-support rotor pump with parallel sealing surfaces |
| US9845888B2 (en) | 2012-08-29 | 2017-12-19 | Eagle Industry Co., Ltd. | Mechanical seal |
| CN104395655A (en) * | 2012-08-29 | 2015-03-04 | 伊格尔工业股份有限公司 | Mechanical seal |
| CN102853085B (en) * | 2012-09-24 | 2015-12-02 | 北京化工大学 | Gas face seals means for anti-jamming and anti-interference method |
| CN102853085A (en) * | 2012-09-24 | 2013-01-02 | 北京化工大学 | Anti-jamming device and anti-jamming method for sealing gas end faces |
| CN104100718A (en) * | 2014-07-03 | 2014-10-15 | 丹东克隆集团有限责任公司 | Mechanical seal device with external spring sheet isolation spring |
| CN104132143B (en) * | 2014-08-04 | 2017-02-15 | 宁波伏尔肯机械密封件制造有限公司 | Silicon carbide mechanical seal device |
| CN104132143A (en) * | 2014-08-04 | 2014-11-05 | 宁波伏尔肯机械密封件制造有限公司 | Silicon carbide mechanical seal device |
| CN108368886A (en) * | 2015-12-11 | 2018-08-03 | 洛普兰控股公司 | Holding meanss for being applied in sealing element on axis |
| CN108368886B (en) * | 2015-12-11 | 2020-09-08 | 洛普兰控股公司 | Retaining device for applying a sealing element to a shaft |
| CN109494920A (en) * | 2018-10-19 | 2019-03-19 | 陕西航空电气有限责任公司 | Aviation pump motor movable sealing structure and aviation pump motor |
| CN110440003A (en) * | 2019-06-25 | 2019-11-12 | 杭州电子科技大学 | One kind is based on pulsation performance inclusion seal device |
| CN110440003B (en) * | 2019-06-25 | 2024-04-09 | 杭州电子科技大学 | Leakage-free sealing device based on pulsation performance |
| CN110821735A (en) * | 2019-11-04 | 2020-02-21 | 大连双龙泵业制造有限公司 | Novel hydraulic turbine mechanical sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315104 Jin Yuan Road, Yinzhou investment and business center, Zhejiang, Ningbo, China, No. 666 Patentee after: Ningbo fu'erken Ceramic Technology Co. Ltd. Address before: 315104 Jin Yuan Road, Yinzhou investment and business center, Zhejiang, Ningbo, China, No. 666 Patentee before: Ningbo Vulcan Mechanical Seals Manufacturing Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315104 Jin Yuan Road, Yinzhou investment and entrepreneurship center, Ningbo, Zhejiang 666 Patentee after: Ningbo Vulcan Polytron Technologies Inc Address before: 315104 Jin Yuan Road, Yinzhou investment and entrepreneurship center, Ningbo, Zhejiang 666 Patentee before: Ningbo fu'erken Ceramic Technology Co. Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110413 |