CN102116308A - Adjustable mechanical sealing structure for pump - Google Patents
Adjustable mechanical sealing structure for pump Download PDFInfo
- Publication number
- CN102116308A CN102116308A CN 201110092798 CN201110092798A CN102116308A CN 102116308 A CN102116308 A CN 102116308A CN 201110092798 CN201110092798 CN 201110092798 CN 201110092798 A CN201110092798 A CN 201110092798A CN 102116308 A CN102116308 A CN 102116308A
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- ring
- pressure
- pump
- mechanical sealing
- 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.)
- Granted
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Mechanical Sealing (AREA)
Abstract
The invention discloses an adjustable mechanical sealing structure for a pump, and relates to the adjustable mechanical sealing structure for a horizontal wear-resistant slurry pump and belongs to the technical field of mechanical sealing. The adjustable mechanical sealing structure for the pump comprises a moving ring, a stationary ring, a push ring, a spring, a framework oil seal, an oil seal press cover, a set screw, an inner hexagon bolt, a positioning clip, a bolt, an O-shaped ring, a second connecting flange, a driving ring, an inner shaft sleeve and an outer shaft sleeve, wherein the inner shaft sleeve and the outer shaft sleeve are in sleeve matching, axial distances of the inner shaft sleeve and the outer shaft sleeve can be regulated from -5 millimeters to +5 millimeters; and the connecting flange is additionally provided with a high-pressure water inlet on the basis of an existing low-pressure water inlet and an existing low-pressure outlet, a runner used for introducing high-pressure flushing water a cavity at the inner side of the moving ring and the stationary ring is processed inside the connecting flange, and the pressure of the high-pressure flushing water injected from the high-pressure water inlet is larger than that of the cavity. By virtue of the adjustable mechanical sealing structure for the pump, axial regulation of mechanical sealing can be realized, and complete cooling on the moving ring and the stationary ring can be ensured, thereby the service lives of the moving ring and the stationary ring are greatly prolonged.
Description
Technical field
The mechanical seal structure that the present invention relates to use on the centrifugal pump, the adjustable mechanical seal structure that particularly a kind of horizontal wear-resisting slag stock pump is used belongs to the mechanical sealing technology field.
Background technique
Mechanical seal is by at least one pair of end face perpendicular to spin axis, under the cooperation of the effect of hydrodynamic pressure and compensation mechanism elastic force (or magnetic force) and auxiliary seal, keeps fitting and slide relative and the leakage preventing device that constitutes.Mechanical seal is mainly as the seal arrangement of rotating machinery, such as equipment such as centrifugal pump, centrifuge, reactor and compressors.This type of rotating machinery, because transmission shaft is applied in inside and outside the equipment, there is a circumferential clearance between axle and the equipment, flowing medium in the equipment is outwards revealed by this gap, if the equipment internal pressure is lower than barometric pressure, then air is revealed in equipment by this gap, therefore must have a mechanical seal to stop medium to reveal and prevent the past interior intrusion of outside air outward.
In prior art, as shown in Figure 1, the mechanical seal form that general pump the is used schemes that adopt outer flushing more, its main structure is made up of axle sleeve 1, outside framework oil seal 2, rotating ring 6, stationary ring 7, spring 4, throw-out collar 5, first adpting flange 3, oil sealing cover 14.Axle sleeve 1 usefulness screw 15 is locked it on pump shaft 8, pushes up transmission part 16 and impeller 9 before and after it; Between axle sleeve 1 and the machine envelope pump cover 11 less clearance is arranged, and with the rectangle groove design, in the pump operation process, prevent that the large particle flowing medium from rushing in rotating ring 7 and stationary ring 6 rubbing surfaces.Rotating ring 7 and stationary ring 6 are for face contacts, and its material can be selected according to the flowing medium that concrete pump is carried, and rotating ring 7 is fixed on the axle sleeve 1, and along with axle sleeve 1 and pump shaft 8 rotate together; Stationary ring 6 is fixed on the throw-out collar 5, behind the throw-out collar 5 spring 4 is arranged simultaneously, and it is fixed on first adpting flange 3, spring 4 is with certain forward thrust simultaneously, make stationary ring 6 keep contacting, and when rotating ring 7 and stationary ring 6 have certain frictional loss, can compensate with the face of rotating ring 7.Stationary ring 6, throw-out collar 5 and spring 4 are fixed on first adpting flange 3, and first adpting flange, 3 usefulness bolts 12 are connected on the machine envelope pump cover 11, form stationary ring 6, throw-out collar 5, spring 4 and first adpting flange 3 state static with respect to operating as of pump shaft 8.The import and the outlet of cooling water are arranged on first adpting flange 3 simultaneously, and guide cooling water enters the cavity between rotating ring 7 and the stationary ring 6, takes away the heat that the rubbing surface place produces in operation process, reaches cooling action.Outside framework oil seal 2 is between first adpting flange 3 and axle sleeve 1, and on-stream playing prevents that cooling water is toward the effect of external leakage.Oil sealing cover 14 is used to guarantee outside framework oil seal 2 fix in position, and is fixed on first adpting flange 3 with hexagon socket head cap screw and positioning checkpoint 13.O shape circle 10 is used in the inside and outside many places of mechanical seal, to prevent that pump cavity inner fluid medium is to external leakage.The outer flushing scheme of prior art is only cooled off at the rotating ring 7 and stationary ring 6 outsides, and its cooling effect only limits to the rubbing surface outside; And the inboard no-cooling-water flushing of the rubbing surface of rotating ring 7 and stationary ring 6, in pump cavity under the washing away of bigger pressure and flowing medium turbulent flow, less media particle can be broken through the obstruct of axle sleeve 1 rectangle groove, constantly be accumulated to the rubbing surface place of rotating ring 7 and stationary ring 6, the flowing medium particle in the accumulation of rubbing surface place too much, can't cool off with the huge heat of rotating ring 7 friction-produced, cause rotating ring 7 and stationary ring 6 Destructive wears, shorten the working life of rotating ring 7 and stationary ring 6 greatly; Use in the field at pump, usually because pump operation after a period of time, because abrasion and wearing and tearing appear in impeller 9, therefore need transmission part 16 impeller 9 to regulate integrally, guarantee the gap of impeller 9 at cavity, so that pump remains at the operation of high efficiency point, and the mechanical seal structure of existing technology is unadjustable, the relative distance that can't regulate mechanical seal and pump shaft 8 according to the pump operation situation.Therefore, though prior art is simple in structure, assembling, housekeeping operation are convenient, and technology capability is good, have that cooling is insufficient, rotating ring 7 and 6 working lifes of stationary ring are short, mechanical seal can not axial adjustment etc. deficiency.
Summary of the invention
The objective of the invention is for solve exist in the prior art mechanical seal can not axial adjustment, cooling is insufficient and rotating ring and stationary ring short problem in working life, a kind of pump adjustable mechanical sealing configuration disclosed by the invention, can realize mechanical seal axial adjustment, guarantee rotating ring and stationary ring fully cools off, prolong working life of rotating ring and stationary ring greatly.
Outstanding improvement characteristics of the present invention are: (1) is divided into internal axle sleeve and external axle sleeve for realizing the axial adjustment of mechanical seal with axle sleeve, and internal axle sleeve is installed on the pump shaft, pushes up on transmission part and the impeller before and after it; External axle sleeve and machine envelope pump cover have less clearance, are provided with rectangle groove with the contacted part of machine envelope pump cover, and rotating ring is fixed on the internal axle sleeve, and there are driving ring and screw in the rear end; Internal axle sleeve and external axle sleeve are that sleeve cooperates, can realize axial adjustment, after internal axle sleeve and external axle sleeve relative position are adjusted, tighten screw and produce big coupling mechanism force by driving ring, external axle sleeve is firmly lock onto on the internal axle sleeve, and realization internal axle sleeve, external axle sleeve and rotating ring are done as a whole along with pump shaft rotates together.(2) for strengthening the cooling effect of cooling water, the medial and lateral that guarantee rotating ring and stationary ring rubbing surface can both be cooled off fully, change the flushing scheme into integration scenario that outer flushing adds interior flushing, outer flushing adopts low-pressure washing water to pour into from the pipe joint of low-pressure water import, pressure is about 0.1MPa, flow is 4～10L/min, and outer flushing is carried out in the outside of rotating ring and stationary ring rubbing surface with continuing to flow, plays the effect in the cooling friction pair outside; Interior flushing adopts high-pressure washing water to pour into from the pipe joint of high pressure water import, and its pressure is greater than chamber pressure 0.1MPa, and flow is 20～40L/min, and interior flushing is carried out in the inboard of rotating ring and stationary ring rubbing surface with continuing to flow, plays the effect of cooling friction pair inboard.(3) for reducing or avoid the flowing medium friction of granule and the loss of rotating ring and stationary ring and pump cavity, improve the working life of rotating ring and stationary ring, the pressure that washes in the high-pressure washing water is increased to greater than chamber pressure 0.1Mpa, make flowing medium can't flow to the rubbing surface of rotating ring and stationary ring, thereby the barrier fluid medium contacts with stationary ring with rotating ring, prolongs the working life of rotating ring and stationary ring greatly.
The objective of the invention is to be achieved through the following technical solutions:
A kind of pump adjustable mechanical sealing configuration, it comprises outside framework oil seal, spring, throw-out collar, stationary ring, rotating ring, O shape circle, bolt, hexagon socket head cap screw and positioning checkpoint, oil sealing cover and screw; Peripheral unit comprises: impeller, machine envelope pump cover, transmission part; It also comprises adpting flange, driving ring, internal axle sleeve and external axle sleeve; Internal axle sleeve and external axle sleeve are that sleeve cooperates, but both axial adjustment distances be-5mm～+ 5mm; External axle sleeve and the contacted part of machine envelope pump cover are provided with rectangle groove; Adpting flange is on the basis of existing low-pressure water import and low-pressure water outlet, increase the high pressure water import, and being used for the high-pressure washing water guiding is entered the runner of rotating ring and the inboard cavity of stationary ring in the inner processing of connection method, the high pressure washing water pressure that pours into from the high pressure water import is greater than chamber pressure.
Their annexation is: external axle sleeve is contained on the internal axle sleeve, with screw and driving ring external axle sleeve is locked on internal axle sleeve; Rotating ring is installed on the external axle sleeve and is locked; Stationary ring is installed on the throw-out collar, and connects throw-out collar with spring, the moving ring assembly that is installed on the adpting flange is steadily located and forward thrust arranged; Rotating ring is that face contacts with stationary ring, and is with hexagon socket head cap screw and positioning checkpoint that adpting flange and external axle sleeve is fixing locked after the relative position of internal axle sleeve and external axle sleeve is adjusted, and forms integrated mechanical sealing; The internal axle sleeve of integrated mechanical sealing is contained on the pump shaft, push up the transmission part of rear end after, load onto impeller and hold out against internal axle sleeve; Unclamp hexagon socket head cap screw and positioning checkpoint, adpting flange is locked on machine envelope pump cover with bolt; Between external axle sleeve and the machine envelope pump cover less clearance is arranged, adjusts the position of external axle sleeve, the face that guarantees rotating ring and stationary ring contact and certain pretightening force after, lock the screw on the driving ring, external axle sleeve is fixed on the internal axle sleeve; O shape circle is used in the inside and outside many places of mechanical seal, also uses outside framework oil seal between adpting flange and the external axle sleeve, and oil sealing cover is used to guarantee the outside framework oil seal fix in position, and is fixed on the adpting flange with hexagon socket head cap screw and positioning checkpoint.
The pressure of described high-pressure washing water requires greater than pump cavity pressure 0.1MPa, and flow is 20～40L/min.
Low-pressure washing water pours into from the low-pressure water import, flows out from the low-pressure water outlet, and its pressure is 0.1MPa, and flow is 4～10L/min.
Described high-pressure washing water intercepts the friction area that cavity medium enters rotating ring and stationary ring.
Working procedure of the present invention is: in the installation process of adjustable mechanical seal, locking hexagon socket head cap screw and positioning checkpoint, unclamp the screw on the driving ring, can be according to the position of transmission part and impeller, lock screw again and unclamp positioning checkpoint after adjusting internal axle sleeve, realize the axial adjustment of mechanical seal.In fact, the locking and positioning clamp can make the relative position of rotating ring and stationary ring remain unchanged, and internal axle sleeve is when adjusting, break away from external axle sleeve, along with transmission part and impeller axially adjust the distance after, lock screw once more and make external axle sleeve be fixed in internal axle sleeve, and unclamp positioning checkpoint, recover the relation of the unitary rotation of internal axle sleeve, external axle sleeve and rotating ring.And adpting flange and stationary ring all are fixed on the machine envelope pump cover, are in the static state that does not change.In the pump operation process, internal axle sleeve, external axle sleeve and rotating ring are along with pump shaft circumference high speed rotating, and rotating ring and stationary ring keep fitting and slide relative, outer chamber in intercepting, thereby prevent that flowing medium from leaking into the external world, if behind rotating ring and the stationary ring end wear, can compensate automatically by spring.After pump is moving a period of time, the front and rear cover plate of impeller can be worn, it increases at overcurrent cavity internal clearance, influence hydraulic performance, hexagon socket head cap screw and positioning checkpoint are locked in termination of pumping this moment, unclamp the screw on the external axle sleeve, and it is whole mobile to regulate transmission part, internal axle sleeve and impeller, realize the gap adjustment of impeller in flow passage components, make waterpower remain on the operation of high efficiency point.
Beneficial effect:
1, after pump was moving a period of time, the axial adjustment that can carry out mechanical seal according to actual conditions made waterpower remain on the operation of high efficiency point to a kind of pump of the present invention with adjustable mechanical seal;
2, a kind of pump of the present invention has strengthened the cooling effect of cooling water with adjustable mechanical seal, and sealing state is stable, and leakage rate is very little;
3, a kind of pump of the present invention has been avoided the friction of the media particle of rotating ring and stationary ring and pump cavity with adjustable mechanical seal, improved the working life of rotating ring and stationary ring, and its Applicable scope enlarges, can be used for low temperature, high temperature, high pressure, different rotating speeds, and various Korrosionsmedium and contain bad working environments such as abrasive particle medium.
Description of drawings
Fig. 1 is the sectional view of the mechanical seal for pump structure of prior art;
Fig. 2 is the right elevation of the mechanical seal for pump of prior art;
Fig. 3 is the sectional view of a kind of pump of the present invention with adjustable mechanical seal structure;
Fig. 4 is the right elevation of a kind of pump of the present invention with adjustable mechanical seal;
Wherein: 1-axle sleeve, 2-outside framework oil seal, 3-first adpting flange, 4-spring, 5-throw-out collar, 6-stationary ring, 7-rotating ring, 8-pump shaft, 9-impeller, 10-O shape circle, 11-machine envelope pump cover, 12-bolt, 13-hexagon socket head cap screw and positioning checkpoint, 14-oil sealing cover, 15-screw, 16-transmission part, the outlet of 17-low-pressure water, the import of 18-low-pressure water, 19-adpting flange, 20-external axle sleeve, 21-internal axle sleeve, 22-driving ring, the import of 23-high pressure water.
Concrete mode of execution
The present invention is described further below in conjunction with drawings and Examples:
Embodiment
As shown in Figure 3 and Figure 4, the adjustable mechanical seal of a kind of pump, it comprises rotating ring 7, stationary ring 6, throw-out collar 5, spring 4, outside framework oil seal 2, oil sealing cover 14, screw 15, hexagon socket head cap screw and positioning checkpoint 13, bolt 12 and O shape circle 10; Peripheral unit comprises: pump shaft 8, transmission part 16, machine envelope pump cover 11, impeller 9; It also comprises adpting flange 19, driving ring 22, internal axle sleeve 21 and external axle sleeve 20, wherein, internal axle sleeve 21 and external axle sleeve 20 cooperate for sleeve, but both axial adjustment distance is-5mm～+ 5mm, after internal axle sleeve 21 is contained on the pump shaft 8, withstand on transmission part 16 and the impeller 9 before and after it, internal axle sleeve 21 and drive line structure are connected as one; External axle sleeve 20 is inherited the advantage of prior art, is provided with rectangle groove with machine envelope pump cover 11 contacted parts; Internal axle sleeve 21 can carry out axial adjustment with external axle sleeve 20 disengagings, after adjusting axial distance according to the actual conditions of pump operation, with screw 15 and driving ring 22 external axle sleeve 20 is locked on internal axle sleeve 21, makes internal axle sleeve 21, external axle sleeve 20 drive rotating ring 7 along with pump shaft 8 rotates together.Adpting flange 19 increases high pressure water import 23 on the basis of existing low-pressure water import 18 and low-pressure water outlet 17, and at adpting flange 19 inner processing flow channels, high pressure water is guided the inboard cavity that enters rotating ring 7 and stationary ring 6, realizes flushing in the cooling water.The pressure of high-pressure washing water requires greater than pump cavity pressure 0.1MPa the medium of conveying to be pushed in the pump cavity all the time by high-pressure washing water, thereby realizes cooling and intercept the friction area that cavity medium enters rotating ring 7 and stationary ring 6.
Their annexation is: after external axle sleeve 20 is contained in internal axle sleeve 21, with screw 15 and driving ring 22 external axle sleeve 20 is locked on internal axle sleeve 21; Rotating ring 7 is installed on the external axle sleeve 20 and is locked; Stationary ring 6 is installed on the throw-out collar 5, and connects throw-out collars 5 with spring 4, rotating ring 7 assemblies that are installed on the adpting flange 19 is steadily located and forward thrust arranged; Rotating ring 7 and stationary ring 6 are for face contacts, and be with hexagon socket head cap screw and positioning checkpoint 13 that adpting flange 19 and external axle sleeve 20 is fixing locked after the relative position of internal axle sleeve 21 and external axle sleeve 20 is adjusted, and forms integrated mechanical sealing; The internal axle sleeve 21 of integrated mechanical sealing is contained on the pump shaft 8, push up the transmission part 16 of rear end after, load onto impeller 9 and hold out against internal axle sleeve 21; Unclamp hexagon socket head cap screw and positioning checkpoint 13, have bolt 12 to be locked on machine envelope pump cover 11 adpting flange 19; Adjust the position of external axle sleeve 20, the face that guarantees rotating ring 7 and stationary ring 6 contact and certain pretightening force after, lock the screw 15 on the driving ring 22, external axle sleeve 20 is fixed on the internal axle sleeve 21.O shape circle 10 is used in the inside and outside many places of mechanical seal, also uses outside framework oil seal 2 between adpting flange 19 and the external axle sleeve 20, the low-pressure washing watertight is encapsulated in the cavity, to prevent in the pump cavity that medium or sparge water are to external leakage.Outside framework oil seal 2 is between adpting flange 19 and external axle sleeve 20, and on-stream playing prevents that cooling water is toward the effect of external leakage.Oil sealing cover 14 is used to guarantee outside framework oil seal 2 fix in position, and is fixed on the adpting flange 19 with hexagon socket head cap screw and positioning checkpoint 13.
Working procedure of the present invention is: in the installation process of adjustable mechanical seal, locking hexagon socket head cap screw and positioning checkpoint 13, unclamp the screw 15 on the driving ring 22, can be according to the position of transmission part 16 and impeller 8, lock screw 15 again and unclamp positioning checkpoint 13 after adjusting internal axle sleeve 21, realize the axial adjustment of mechanical seal.In fact, locking and positioning clamp 13 can make the relative position of rotating ring 7 and stationary ring 6 remain unchanged, and internal axle sleeve 21 is when adjusting, break away from external axle sleeve 20, along with transmission part 16 and impeller 9 axially adjust the distance after, lock screw 15 once more and make external axle sleeve 20 be fixed in internal axle sleeve 21, and unclamp positioning checkpoint 13, recover the relation of the unitary rotation of internal axle sleeve 21, external axle sleeve 20 and rotating ring 7.And adpting flange 19 and stationary ring 6 all are fixed on the machine envelope pump cover 11, are in the static state that does not change.In the pump operation process, internal axle sleeve 21, external axle sleeve 20 and rotating ring 7 are along with pump shaft 8 circumference high speed rotating, and rotating ring 7 and stationary ring 6 keep fitting and slide relative, outer chamber in intercepting, thereby prevent that flowing medium from leaking into the external world, if behind rotating ring 7 and stationary ring 6 end wears, can compensate automatically by spring 4.After pump is moving a period of time, the front and rear cover plate of impeller 9 can be worn, it increases at overcurrent cavity internal clearance, influence hydraulic performance, hexagon socket head cap screw and positioning checkpoint 13 are locked in termination of pumping this moment, unclamp the screw 15 on the external axle sleeve 20, regulate transmission part 16, internal axle sleeve 21 and impeller 9 whole moving, realize the gap adjustment of impeller 9 in flow passage components, make waterpower remain on the operation of high efficiency point.
The outstanding improvement characteristics of present embodiment are: (1) is divided into internal axle sleeve 21 and external axle sleeve 20 for realizing the axial adjustment of mechanical seal with axle sleeve 1, and internal axle sleeve 21 is installed on the axle, pushes up on transmission part 16 and the impeller 9 before and after it; External axle sleeve 20 has less clearance with machine envelope pump cover 11, is provided with rectangle groove with machine envelope pump cover 11 contacted parts; Rotating ring 7 is fixed on the internal axle sleeve 21, and there are driving ring 22 and screw 15 in the rear end; Internal axle sleeve 21 and external axle sleeve 20 cooperate for sleeve, can realize axial adjustment, after internal axle sleeve 21 and external axle sleeve 20 relative positions are adjusted, tighten screw 15 and produce big coupling mechanism force by driving ring 22, external axle sleeve 20 is firmly lock onto on the internal axle sleeve 21, and realization internal axle sleeve 21, external axle sleeve 20 and rotating ring 7 are done as a whole along with pump shaft 8 rotates together.(2) for strengthening the cooling effect of cooling water, the medial and lateral that guarantee rotating ring 7 and stationary ring 6 rubbing surfaces can both be cooled off fully, change the flushing scheme into integration scenario that outer flushing adds interior flushing, outer flushing adopts low-pressure washing water to pour into from the low-pressure water import, pressure is about 0.1MPa, flow is 4～10L/min, and outer flushing is carried out in the outside of rotating ring 7 and stationary ring 6 rubbing surfaces with continuing to flow, plays the effect in the cooling friction pair outside; Interior flushing adopts high-pressure washing water to pour into from the high pressure water import, and its pressure is greater than chamber pressure 0.1MPa, and flow is 20～40L/min, and interior flushing is carried out in the inboard of rotating ring 7 and stationary ring 6 rubbing surfaces with continuing to flow, plays the effect of cooling friction pair inboard.(3) for reducing or avoid the flowing medium friction of granule and the loss of rotating ring 7 and stationary ring 6 and pump cavity, improve the working life of rotating ring 7 and stationary ring 6, the pressure that washes in the high-pressure washing water is increased to greater than chamber pressure 0.1Mpa, make flowing medium can't flow to the rubbing surface of rotating ring 7 and stationary ring 6, thereby the barrier fluid medium contacts with stationary ring 6 with rotating ring 7, prolongs the working life of rotating ring 7 and stationary ring 6 greatly.
Protection scope of the present invention not only is confined to present embodiment, and present embodiment is used to explain the present invention, all and the present invention under same principle and design condition change or revise all within protection domain disclosed by the invention.
Claims (4)
1. pump adjustable mechanical sealing configuration, it comprises outside framework oil seal (2), spring (4), throw-out collar (5), stationary ring (6), rotating ring (7), O shape circle (10), bolt (12), hexagon socket head cap screw and positioning checkpoint (13), oil sealing cover (14) and screw (15); Peripheral unit comprises: impeller (9), machine envelope pump cover (11), transmission part (16); It is characterized in that: it also comprises adpting flange (19), driving ring (22), internal axle sleeve (21) and external axle sleeve (20); Internal axle sleeve (21) and external axle sleeve (20) are that sleeve cooperates, but both axial adjustment distances be-5mm～+ 5mm; External axle sleeve (20) is provided with rectangle groove with the contacted part of machine envelope pump cover (11); Adpting flange (19) is on the basis of existing low-pressure water import (18) and low-pressure water outlet (17), increase high pressure water import (23), and being used for the high-pressure washing water guiding is entered the runner of rotating ring (7) and the inboard cavity of stationary ring (6) in the inner processing of adpting flange (19), the high pressure washing water pressure that pours into from high pressure water import (23) is greater than chamber pressure;
Their annexation is: external axle sleeve (20) is contained on the internal axle sleeve (21), with screw (15) and driving ring (22) external axle sleeve (20) is locked on internal axle sleeve (21); Rotating ring (7) is installed on the external axle sleeve (20) and is locked; Stationary ring (6) is installed on the throw-out collar (5), and is connected throw-out collar (5) with pin with spring (4), the moving ring assembly that is installed on the adpting flange (19) is steadily located and forward thrust arranged; Rotating ring (7) and stationary ring (6) are for face contacts, and be with hexagon socket head cap screw and positioning checkpoint (13) that adpting flange (19) and external axle sleeve (20) is fixing locked after the relative position of internal axle sleeve (21) and external axle sleeve (20) is adjusted, the formation integrated mechanical sealing; The internal axle sleeve (21) of integrated mechanical sealing is contained on the axle, push up the transmission part (16) of rear end after, load onto impeller (9) and hold out against internal axle sleeve (21); Unclamp hexagon socket head cap screw and positioning checkpoint (13), adpting flange (19) is locked on machine envelope pump cover (11) with bolt; Between external axle sleeve (20) and the machine envelope pump cover (11) less clearance is arranged, adjust the position of external axle sleeve (20), the face that guarantees rotating ring (7) and stationary ring (6) contact and necessarily after the pretightening force, locks the screw (15) on the driving ring, and external axle sleeve (20) is fixed on the internal axle sleeve (21); O shape circle (10) is used in mechanical seal, also use outside framework oil seal (2) between adpting flange (19) and the external axle sleeve (20), oil sealing cover (14) is used to guarantee outside framework oil seal (2) fix in position, and is fixed on the adpting flange (19) with hexagon socket head cap screw and positioning checkpoint (13).
2. a kind of pump adjustable mechanical sealing configuration according to claim 1 is characterized in that: the pressure of described high-pressure washing water requires greater than pump cavity pressure 0.1MPa, and flow is 20～40L/min.
3. a kind of pump adjustable mechanical sealing configuration according to claim 1 and 2 is characterized in that: low-pressure washing water pours into from low-pressure water import (18), flows out from low-pressure water outlet (17), and its pressure is 0.1MPa, and flow is 4～10L/min.
4. a kind of pump adjustable mechanical sealing configuration according to claim 1 and 2 is characterized in that: described high-pressure washing water intercepts the friction area that cavity medium enters rotating ring (7) and stationary ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110092798A CN102116308B (en) | 2011-04-13 | 2011-04-13 | Adjustable mechanical sealing structure for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110092798A CN102116308B (en) | 2011-04-13 | 2011-04-13 | Adjustable mechanical sealing structure for pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102116308A true CN102116308A (en) | 2011-07-06 |
| CN102116308B CN102116308B (en) | 2012-08-29 |
Family
ID=44215203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110092798A Active CN102116308B (en) | 2011-04-13 | 2011-04-13 | Adjustable mechanical sealing structure for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102116308B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671259A (en) * | 2013-12-09 | 2014-03-26 | 无锡艾比德泵业有限公司 | Pump cover of filler pump |
| CN103742438A (en) * | 2013-12-26 | 2014-04-23 | 大连深蓝泵业有限公司 | Rotating shaft supporting device for multistage centrifugal pump |
| CN104089020A (en) * | 2014-07-07 | 2014-10-08 | 上海创异流体机械有限公司 | Mechanical seal device with washing and cooling system |
| CN104995404A (en) * | 2013-02-18 | 2015-10-21 | 罗伯特·博世有限公司 | Assembly comprising a pump element and a fastening flange |
| CN107059269A (en) * | 2016-12-23 | 2017-08-18 | 杰克缝纫机股份有限公司 | Thread shearing device of sewing machine |
| CN108138969A (en) * | 2015-10-30 | 2018-06-08 | Ksb 股份公司 | For the component of shaft seal |
| CN109026821A (en) * | 2018-09-13 | 2018-12-18 | 湖南山水节能科技股份有限公司 | Has the pump of adjustable sealing structure |
| CN109372994A (en) * | 2018-11-13 | 2019-02-22 | 湖南天宏泵业制造有限公司 | A kind of adjustable type integrated mechanical sealing |
| CN110608171A (en) * | 2019-10-22 | 2019-12-24 | 无锡艾比德泵业有限公司 | Horizontal centrifugal pump does not have auxiliary circulation system |
| CN112377452A (en) * | 2020-11-16 | 2021-02-19 | 蒋秀玉 | Aquaculture is with row irrigation equipment seal structure |
| CN113324035A (en) * | 2021-06-07 | 2021-08-31 | 台州海辰科技有限公司 | Shaft lever mechanical sealing mechanism of high-temperature and high-pressure mixer for plastic production |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987003050A1 (en) * | 1985-11-13 | 1987-05-21 | Sealing Devices Pty. Ltd. | Seal assembly |
| CN2692387Y (en) * | 2004-03-05 | 2005-04-13 | 胡滨 | Desulfur pump packaging type mechanical sealing element |
| CN2849249Y (en) * | 2005-11-30 | 2006-12-20 | 上海连成（集团）有限公司 | Open type impeller bi end seal regulating device of light and medium size load chemical pump |
| CN2849247Y (en) * | 2005-11-30 | 2006-12-20 | 上海连成（集团）有限公司 | Open type propeller shaft single end sealing structure of light and medium size load chemical pump |
| JP2010121463A (en) * | 2008-11-17 | 2010-06-03 | Kobe Steel Ltd | Gas seal structure of centrifugal compressor with built-in speed increaser |
| CN202125456U (en) * | 2011-04-13 | 2012-01-25 | 襄樊五二五泵业有限公司 | Adjustable mechanical seal structure for pump |
-
2011
- 2011-04-13 CN CN201110092798A patent/CN102116308B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987003050A1 (en) * | 1985-11-13 | 1987-05-21 | Sealing Devices Pty. Ltd. | Seal assembly |
| CN2692387Y (en) * | 2004-03-05 | 2005-04-13 | 胡滨 | Desulfur pump packaging type mechanical sealing element |
| CN2849249Y (en) * | 2005-11-30 | 2006-12-20 | 上海连成（集团）有限公司 | Open type impeller bi end seal regulating device of light and medium size load chemical pump |
| CN2849247Y (en) * | 2005-11-30 | 2006-12-20 | 上海连成（集团）有限公司 | Open type propeller shaft single end sealing structure of light and medium size load chemical pump |
| JP2010121463A (en) * | 2008-11-17 | 2010-06-03 | Kobe Steel Ltd | Gas seal structure of centrifugal compressor with built-in speed increaser |
| CN202125456U (en) * | 2011-04-13 | 2012-01-25 | 襄樊五二五泵业有限公司 | Adjustable mechanical seal structure for pump |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104995404A (en) * | 2013-02-18 | 2015-10-21 | 罗伯特·博世有限公司 | Assembly comprising a pump element and a fastening flange |
| CN104995404B (en) * | 2013-02-18 | 2017-08-01 | 罗伯特·博世有限公司 | Mounting assembly including pump element and mounting flange |
| CN103671259A (en) * | 2013-12-09 | 2014-03-26 | 无锡艾比德泵业有限公司 | Pump cover of filler pump |
| CN103742438A (en) * | 2013-12-26 | 2014-04-23 | 大连深蓝泵业有限公司 | Rotating shaft supporting device for multistage centrifugal pump |
| CN103742438B (en) * | 2013-12-26 | 2016-06-22 | 大连深蓝泵业有限公司 | Centrifugal multistage pump multiple centrifugal pump rotating-shaft support devices |
| CN104089020A (en) * | 2014-07-07 | 2014-10-08 | 上海创异流体机械有限公司 | Mechanical seal device with washing and cooling system |
| CN108138969A (en) * | 2015-10-30 | 2018-06-08 | Ksb 股份公司 | For the component of shaft seal |
| CN107059269A (en) * | 2016-12-23 | 2017-08-18 | 杰克缝纫机股份有限公司 | Thread shearing device of sewing machine |
| CN109026821A (en) * | 2018-09-13 | 2018-12-18 | 湖南山水节能科技股份有限公司 | Has the pump of adjustable sealing structure |
| CN109026821B (en) * | 2018-09-13 | 2020-05-26 | 湖南山水节能科技股份有限公司 | Pump with adjustable sealing structure |
| CN109372994A (en) * | 2018-11-13 | 2019-02-22 | 湖南天宏泵业制造有限公司 | A kind of adjustable type integrated mechanical sealing |
| CN109372994B (en) * | 2018-11-13 | 2024-06-18 | 湖南天宏泵业制造有限公司 | Adjustable integrated mechanical seal |
| CN110608171A (en) * | 2019-10-22 | 2019-12-24 | 无锡艾比德泵业有限公司 | Horizontal centrifugal pump does not have auxiliary circulation system |
| CN112377452A (en) * | 2020-11-16 | 2021-02-19 | 蒋秀玉 | Aquaculture is with row irrigation equipment seal structure |
| CN113324035A (en) * | 2021-06-07 | 2021-08-31 | 台州海辰科技有限公司 | Shaft lever mechanical sealing mechanism of high-temperature and high-pressure mixer for plastic production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102116308B (en) | 2012-08-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102116308B (en) | Adjustable mechanical sealing structure for pump | |
| US7461847B2 (en) | Self centering, floating brush seal assembly | |
| CN202125456U (en) | Adjustable mechanical seal structure for pump | |
| US20110064566A1 (en) | Apparatus for impeller sealing in centrifugal pumps | |
| CN102128269A (en) | Conical surface mechanical sealing device | |
| CN101718380A (en) | New type rotation joint having flexible float ring sealing structure | |
| CN105953000A (en) | Medium-pressure high-speed rotating connector | |
| CN202171002U (en) | Conical surface mechanical sealing device | |
| CN208587498U (en) | Flue gas desulphurization system mechanical sealing device of silicon carbide | |
| CN105114632A (en) | Sealing device of dry grinding machine | |
| CN103047171A (en) | Novel full-function floating throttling device | |
| CN201818538U (en) | Hydraulic slide-valve type stop sealing mechanism for dynamic sealing of auxiliary impeller in centrifugal pump | |
| CN216767846U (en) | Adjustable sealing ring for centrifugal pump set | |
| CN215672846U (en) | Reverse suction section pressure relief sealing structure of self-balancing multistage centrifugal pump | |
| CN213478677U (en) | Leakage-free mechanical seal filter press feeding pump | |
| CN202811478U (en) | Particle wear-resistance mechanical seal for pump | |
| CN104728124A (en) | Multi-stage centrifugal pump | |
| JPH094721A (en) | Mechanical seal | |
| CN211010013U (en) | Axial flow type check valve | |
| CN210152998U (en) | Slurry pump capable of prolonging service life of mechanical seal | |
| CN1270101C (en) | Assembled mechanical sealer of impurity pump | |
| CN102174963A (en) | Spherical mechanical sealing device | |
| CN114321372A (en) | High-temperature high-pressure mechanical sealing device for composite power groove and using method thereof | |
| CN218093572U (en) | Particle-resistant mechanical seal for hot water pump | |
| CN105065286A (en) | Novel-structure mortar pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |