CN104763674A - Impeller type pressure-adjustable mechanical sealing component - Google Patents
Impeller type pressure-adjustable mechanical sealing component Download PDFInfo
- Publication number
- CN104763674A CN104763674A CN201510154622.4A CN201510154622A CN104763674A CN 104763674 A CN104763674 A CN 104763674A CN 201510154622 A CN201510154622 A CN 201510154622A CN 104763674 A CN104763674 A CN 104763674A
- Authority
- CN
- China
- Prior art keywords
- insulating liquid
- impeller
- mechanical seal
- cooling insulating
- housing
- 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.)
- Pending
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an impeller type pressure-adjustable mechanical sealing component. The impeller type pressure-adjustable mechanical sealing component comprises a shaft sleeve, a movable ring arranged on the peripheral surface of the shaft sleeve, a stationary ring propped against the head face of the movable ring, and a mechanical sealing shell for holding the shaft sleeve, movable ring and stationary ring, a cooling spacer fluid passage is formed between the outer peripheral surface of the movable ring and the inner peripheral surface of the mechanical sealing shell, on the cooling spacer fluid passage , a cooling spacer fluid drive impeller is arranged on the outer peripheral surface of the movable ring, and a volute space which surrounds the cooling spacer fluid drive impeller and is matched with the cooling spacer fluid drive impeller is formed on the mechanical sealing shell. The impeller rotates by means of the high-speed rotation of the movable ring, the centrifugal force generated by the movable impeller can be effectively used for driving the cooling spacer fluid to quickly flow to timely lubricate the movable ring and stationary ring, and the cooling spacer fluid can effectively cool the movable ring and stationary ring.
Description
Technical field
The present invention relates to a kind of mechanical seal component, particularly relate to a kind of impeller type pressure adjustable mechanical seal component.
Background technique
Current, centrifuge, centrifugal pump, compressor or steam turbine is connected with generator power generation system in, usually use mechanical seal to seal transmission shaft, prevent the fluid in these devices from leaking.
Such as, in power generation system, in order to prevent the Leakage Gas of driving steam turbine, pollution is produced to generator, usually be connected by the steam turbine of gas-powered with generator by mechanical seal, for such mechanical seal, comprise the rotating ring be connected with transmission shaft and the stationary ring coordinated with rotating ring in the housing, at rotating ring and the cooling insulating liquid that flows between stationary ring and housing, can lubricate the slip between rotating ring and stationary ring and seal thus, and the friction can taken away because of rotating ring and stationary ring and the heat produced, rotating ring and stationary ring are cooled.
In such mechanical seal, in order to promote the flowing of cooling insulating liquid, usually nested helical gear on the outer circumferential face of rotating ring forming cooling insulating liquid path and the inner peripheral surface of housing, two helical gear true dip directions are contrary, thus when cooling insulating liquid and outwards being thrown away due to the rotary centrifugal force of transmission shaft, teeth groove on the outer circumferential face being formed in rotating ring between helical gear is thrown out of in the helical gear teeth groove in the inner circumferential being formed in housing, is finally exported along the helical gear teeth groove in the inner circumferential being formed in housing.Namely, under the helical gear effect that direction is contrary, the flowing of cooling insulating liquid is promoted.
But, in such mechanical seal, drive the drive efficiency of cooling insulating liquid flowing low by the helical gear that both direction is contrary.And, need fine finishing helical gear, and high to the requirement of two helical gear assembly precisions and relative positional accuracy, and therefore cost is high.In addition, when using helical gear, helical teeth stirs cooling insulating liquid, consumes very large power, and cooling insulating liquid temperature is raised, and reduces cooling insulating liquid to the cooling action of mechanical seal.
And in such mechanical seal, the pressure almost constant of cooling insulating liquid, when the pressure so such as in steam turbine changes, the pressure reduction cooled in insulating liquid and steam turbine exceedes state specified standards sometimes.If it is larger that the pressure in steam turbine reduces, then the cooling insulating liquid in mechanical seal likely more leaks in steam turbine the pollution caused steam turbine.
In addition, in such mechanical seal, use adapter sleeve to be fixed on axle sleeve by rotating ring, on the face that adapter sleeve abuts with rotating ring, asbestos or tetrafluoroethylene pad are set.When using asbestos washer, due to the High Rotation Speed of rotating ring and washing away of cooling insulating liquid, asbestos washer will soon lose efficacy decomposition, and be mixed in cooling insulating liquid, can be mixed into residue like this in cooling insulating liquid, such residue can hinder the lubrication between rotating ring and stationary ring and the cooling to rotating ring and stationary ring.In addition, when using tetrafluoroethylene pad, because rotating ring high-speed rotary transfers the effect of centrifugal force and the high temperature action of rotating ring of generation, can there is creep in tetrafluoroethylene pad, such rotating ring can be moved in the axial direction, can produce leakage thus.
Summary of the invention
The object of the invention is to propose a kind of cost for the technological deficiency existed in prior art low, cooling insulating liquid drives effective, movably can regulate the pressure of cooling insulating liquid, and can not produce the impeller type pressure adjustable mechanical seal component of leakage.
Following technological scheme is adopted for realizing object of the present invention.
The impeller type pressure adjustable mechanical seal component of technological scheme 1, there is axle sleeve, be arranged on the rotating ring on the outer circumferential face of described axle sleeve, the stationary ring abutted with the end face of described rotating ring and accommodating described axle sleeve, described rotating ring, the mechanical seal housing of described stationary ring, be formed between the outer circumferential face and the inner peripheral surface of described mechanical seal housing of described rotating ring and cool insulating liquid path, on described cooling insulating liquid path, the outer circumferential face of described rotating ring is provided with cooling insulating liquid drives impeller, described mechanical seal housing is formed the volute space coordinated with described cooling insulating liquid drives impeller surrounding described cooling insulating liquid drives impeller.
The impeller type pressure adjustable mechanical seal component of technological scheme 2, in the impeller type pressure adjustable mechanical seal component of technological scheme 1, described cooling insulating liquid drives impeller is made up of protecgulum, bonnet and the blade be arranged between described protecgulum and described bonnet.
The impeller type pressure adjustable mechanical seal component of technological scheme 3, in the impeller type pressure adjustable mechanical seal component of technological scheme 2, described mechanical seal housing is by the first housing installed successively, spiral case housing and the second housing are formed, in opposite directions 2 faces of described spiral case housing and described first housing are formed with ring-type spiral case groove respectively, when described spiral case housing is arranged on described first housing, 2 described ring-type spiral case grooves form the volute space surrounding described cooling insulating liquid drives impeller, the downstream side of described volute space more towards described cooling insulating liquid is larger.
The impeller type pressure adjustable mechanical seal component of technological scheme 4, in the impeller type pressure adjustable mechanical seal component any one of technological scheme 1 to 3, on described cooling insulating liquid path, arrangement is provided with multistage cooling insulating liquid drives impeller.
The impeller type pressure adjustable mechanical seal component of technological scheme 5, in the impeller type pressure adjustable mechanical seal component any one of technological scheme 1 to 3, the locking cover be fixed on by described rotating ring on described axle sleeve is had at the outer circumferential face overcoat of described axle sleeve, the end face abutted with described rotating ring of described locking cover is formed with the first seal groove, in described first seal groove, O RunddichtringO is installed, the end face abutted with described rotating ring of described axle sleeve is formed with the second seal groove, in described second seal groove, O-ring seals is installed.
The impeller type pressure adjustable mechanical seal component of technological scheme 6, in the impeller type pressure adjustable mechanical seal component any one of technological scheme 1 to 3, the modulating valve that can carry out opening and closing according to the pressure of the cooling insulating liquid flowed out from described cooling insulating liquid drives impeller is installed in the cooling insulating liquid outlet of described impeller type pressure adjustable mechanical seal component.
The impeller type pressure adjustable mechanical seal component of technological scheme 7, in the impeller type pressure adjustable mechanical seal component of technological scheme 6, the modulating valve that can carry out opening and closing according to the pressure of the cooling insulating liquid flowed out from described cooling insulating liquid drives impeller is installed in the cooling insulating liquid outlet of described impeller type pressure adjustable mechanical seal component.
Compared with prior art, the present invention has following beneficial effect.
According to the impeller type pressure adjustable mechanical seal component of technological scheme 1, not nested helical gear on the outer circumferential face of rotating ring forming cooling insulating liquid path and the inner peripheral surface of housing, and the cooling insulating liquid drives impeller as water pump vane is set at the output terminal of cooling insulating liquid path, and form the volute space surrounding cooling insulating liquid drives impeller.By the High Rotation Speed of rotating ring, vane rotary can be made thus, moving vane can be utilized efficiently to take turns the centrifugal force produced, drive cooling insulating liquid to flow fast, in time rotating ring and stationary ring are lubricated, and can cool rotating ring and stationary ring efficiently.
And the stream of impeller is smooth-going, seldom produces vortex, or the vortex produced is very little, and the temperature rise of conveying cooling insulating liquid is very little, and the efficiency of flowing is high.In addition, the driving pressure reduction that impeller produces is large, not easily makes cooling insulating liquid block.
In addition, the driving pressure reduction produced due to impeller is large, so make the containing space of cooling insulating liquid form the low-pressure cavity of import and the hyperbaric chamber of outlet, this reduces the pressure reduction between low-pressure cavity and ambient exterior atmospheric pressure, reduce further the situation of cooling insulating liquid externally environmental leak, guarantee leakage rate is up to standard, preventing pollution environment.
According to the impeller type pressure adjustable mechanical seal component of technological scheme 2 and 3, by forming the driving structure of impeller and spiral case formation, the driving pressure reduction of cooling insulating liquid can be increased, cooling insulating liquid can be driven better.In addition, the impeller of the result that impeller adopts water pump vane such, manufacture simple, cost is low.
According to the impeller type pressure adjustable mechanical seal component of technological scheme 4, on cooling insulating liquid path, arrangement is provided with multistage cooling insulating liquid drives impeller.Like this when impeller type pressure adjustable mechanical seal component sealed high pressure system, cooling insulating liquid can be driven step by step by multistage cooling insulating liquid drives impeller, drive the flowing of cooling insulating liquid further.
According to the impeller type pressure adjustable mechanical seal component of technological scheme 5, axle sleeve and locking cover and rotating ring by between sealed by O-ring seals, the pollution that the decomposition of asbestos washer brings cooling insulating liquid can be avoided thus, and asbestos washer decomposes the defect of rear mechanical seal leakage of oil, and the creep of tetrafluoroethylene pad can be avoided to make the defect of mechanical seal leakage of oil.
According to the impeller type pressure adjustable mechanical seal component of technological scheme 6, in the cooling insulating liquid outlet of impeller type pressure adjustable mechanical seal component, modulating valve is installed.Like this when system internal pressure reduces, the aperture of fluid modulating valve can be increased, reduce the pressure of insulating liquid, the pressure difference between residual neat recovering system and insulating liquid is arrived in the scope of state-set standard.Namely general dynamic pressure is sealed, wedge slot sizing in dynamic pressure sealing and the rotating speed of rotating ring fixing after, the dynamic pressure of dynamic pressure sealing is fixed, can not adjust, when such mechanical seal is in for the system of pressure oscillation, pressure reduction between system and cooling insulating liquid exceedes NBS sometimes, causes and leaks or pollute, reduce the working life of mechanical seal.And the present invention is applicable to the equipment of system pressure change, effectively reduces leakage rate, extend the life-span of mechanical seal.
According to the impeller type pressure adjustable mechanical seal component of technological scheme 7, at the cooling insulating liquid entrance of impeller type pressure adjustable mechanical seal component, pressure transducer is installed, the pressure of the cooling insulating liquid ingress of mechanical seal can be monitored thus, thus can adjust based on the pressure of this pressure change to cooling insulating liquid supply source.
Accompanying drawing explanation
Fig. 1 is the schematic diagram representing impeller type pressure adjustable mechanical seal component of the present invention.
Fig. 2 is the schematic top plan view representing cooling insulating liquid impeller of the present invention.
Embodiment
Below, based on accompanying drawing, the impeller type pressure adjustable mechanical seal component as embodiments of the invention is described.
Fig. 1 is the schematic diagram representing impeller type pressure adjustable mechanical seal component of the present invention.Fig. 2 is the schematic top plan view representing cooling insulating liquid impeller of the present invention.
As depicted in figs. 1 and 2, impeller type pressure adjustable mechanical seal component of the present invention there is axle sleeve 10, the rotating ring 20 be arranged on the outer circumferential face of axle sleeve 10, the stationary ring 30 abutted with the end face of rotating ring 20 and accommodating axle sleeve 10, rotating ring 20, stationary ring 30 mechanical seal housing 40.
Be formed between the outer circumferential face and the inner peripheral surface of mechanical seal housing 40 of rotating ring 20 and cool insulating liquid path T, on cooling insulating liquid path T, the outer circumferential face of rotating ring 20 is provided with cooling insulating liquid drives impeller 50, mechanical seal housing 40 is formed the volute space S coordinated with cooling insulating liquid drives impeller 50 surrounding cooling insulating liquid drives impeller 50.
Specifically, on axle sleeve 10, rotating ring 20 is installed by locking cover 60, an end face of rotating ring 20 abuts with locking cover 60, another end face abuts with the locking flange 11 of axle sleeve 10, the end face abutted with rotating ring 20 of locking cover 60 is formed with seal groove 61, O RunddichtringO 62 is installed in seal groove 61, in addition, the end face abutted with rotating ring 20 of axle sleeve 10 is formed with seal groove 12, O-ring seals 13 is installed in seal groove 12, by seal ring, rotating ring is sealed, thus rotating ring is arranged on axle sleeve.
In addition, be coated with mechanical seal housing 40 in the periphery of rotating ring 20, be formed between the outer circumferential face and the inner peripheral surface of mechanical seal housing 40 of rotating ring 20 and cool insulating liquid path T.On cooling insulating liquid path T, rotating ring 20 be provided with by protecgulum 51, bonnet 52 and be arranged on the cooling insulating liquid drives impeller 50 that the blade 53 between protecgulum 51 and bonnet 52 forms.
In addition, mechanical seal housing 40 is made up of the first housing 41 installed successively, spiral case housing 42 and the second housing 43, owing to forming spiral case groove in the face in opposite directions of spiral case housing 42 and the first housing 41, can the volute space S of accommodating cooling insulating liquid drives impeller 50 so formed after installing spiral case housing.
When producing such impeller type pressure adjustable mechanical seal component, will be enclosed within axle sleeve 10 outside rotating ring 20, then by locking cover 60, rotating ring 20 being fixed on axle sleeve 10, then at the outer circumferential face of rotating ring 20, cooling insulating liquid impeller 50 is installed.First housing 41 is installed afterwards, it is made to cover most rotating ring 20, side by side spiral case housing 42 is installed with the first housing 41 in addition, cooling insulating liquid impeller 50 is made to be contained in the volute space S formed by spiral case housing 42 and the first housing 41, second housing 43 is finally installed, forms whole impeller type pressure adjustable mechanical seal component.
In above-mentioned mechanical seal component, form the stream of the cooling insulating liquid shown in arrow in Fig. 1, namely, cooling insulating liquid flows into from cooling insulating liquid entrance I the cooling insulating liquid input channel T1 be formed in the first housing 41, then the cooling insulating liquid path T that rotating ring 20 periphery is surveyed is flowed to, then via the driving of cooling insulating liquid drives impeller 50, flow into volute space S, finally from the volute space liquid outlet S1 of volute space S, the cooling insulating liquid output channel T2 be formed on the first housing 41 is flowed into via the space between spiral case housing 42 and the second housing 43, finally return cooling insulating liquid supply source from cooling insulating liquid outlet U, form circulation.
In addition, the modulating valve 70 that can carry out opening and closing according to the pressure of the cooling insulating liquid flowed out from cooling insulating liquid drives impeller is installed at the cooling insulating liquid outlet U of impeller type pressure adjustable mechanical seal component.And at the cooling insulating liquid entrance I of impeller type pressure adjustable mechanical seal component, the pressure transducer 80 detected the pressure of the cooling insulating liquid flowing into cooling insulating liquid drives impeller can be installed.Wherein, PIT and pressure indication sensor can survey the pressure that 90 amounts cooling insulating liquids export U, be monitored by computer, regulate modulating valve 70, but be not limited thereto.As long as utilize the device can monitoring cooling insulating liquid outlet U, monitor force also regulates the aperture of modulating valve 70.In addition, pressure transducer 80 also can use pressure indication sensor
According to impeller type pressure adjustable mechanical seal component of the present invention, not nested helical gear on the outer circumferential face of rotating ring forming cooling insulating liquid path and the inner peripheral surface of housing, and the cooling insulating liquid drives impeller as water pump vane is set at the output terminal of cooling insulating liquid path, and form the volute space surrounding cooling insulating liquid drives impeller.By the High Rotation Speed of rotating ring, vane rotary can be made thus, moving vane can be utilized efficiently to take turns the centrifugal force produced, drive cooling insulating liquid to flow fast, in time rotating ring and stationary ring are lubricated, and can cool rotating ring and stationary ring efficiently.
And the stream of impeller is smooth-going, seldom produces vortex, or the vortex produced is very little, and the temperature rise of conveying cooling insulating liquid is very little, and the efficiency of flowing is high.In addition, the driving pressure reduction that impeller produces is large, not easily makes cooling insulating liquid block.
In addition, the driving pressure reduction produced due to impeller is large, so make the containing space of cooling insulating liquid form the low-pressure cavity of import and the hyperbaric chamber of outlet, this reduces the pressure reduction between low-pressure cavity and ambient exterior atmospheric pressure, reduce further the situation of cooling insulating liquid externally environmental leak, guarantee leakage rate is up to standard, preventing pollution environment.
In addition, by being made up of cooling insulating liquid drives impeller protecgulum, bonnet and the blade be arranged between described protecgulum and described bonnet, the driving pressure reduction of cooling insulating liquid can being increased, cooling insulating liquid can be driven better.In addition, the impeller of the result that impeller adopts water pump vane such, manufacture simple, cost is low.But impeller of the present invention is not limited to the impeller of enclosed, the impeller of semi-open type can also be used, equally also can reach above-mentioned effect.
In addition, by installing multistage cooling insulating liquid drives impeller, cooling insulating liquid can be driven step by step by multistage cooling insulating liquid drives impeller, driving the flowing of cooling insulating liquid further.Namely connected by the stream of stator by cooling insulating liquid drives impeller, multiple cooling insulating liquid drives impeller of can connecting.
In addition, by arranging O-ring seals, the pollution that the decomposition of asbestos washer brings cooling insulating liquid can be avoided, and asbestos washer decomposes the defect of rear mechanical seal leakage of oil, and the creep of tetrafluoroethylene pad can be avoided to make the defect of mechanical seal leakage of oil.
In addition, by the cooling insulating liquid outlet at impeller type pressure adjustable mechanical seal component, modulating valve is installed.Like this when system internal pressure reduces, the aperture of fluid modulating valve can be increased, reduce the pressure of insulating liquid, the pressure difference between residual neat recovering system and insulating liquid is arrived in the scope of state-set standard.Namely general dynamic pressure is sealed, wedge slot sizing in dynamic pressure sealing and the rotating speed of rotating ring fixing after, the dynamic pressure of dynamic pressure sealing is fixed, can not adjust, when such mechanical seal is in for the system of pressure oscillation, pressure reduction between system and cooling insulating liquid exceedes NBS sometimes, causes and leaks or pollute, reduce the working life of mechanical seal.And the present invention is applicable to the equipment of system pressure change, effectively reduces leakage rate, extend the life-span of mechanical seal.
In addition, by being provided with pressure transducer at the cooling insulating liquid entrance of impeller type pressure adjustable mechanical seal component, the pressure of the cooling insulating liquid ingress of mechanical seal can be monitored thus, thus can adjust based on the pressure of this pressure change to cooling insulating liquid supply source.
In addition, volute space can be formed by spiral case housing and the first housing, but be not limited thereto, spiral case housing can not be formed, form volute space by the first housing and the second housing, can reach effect of the present invention equally like this.
In addition, impeller type pressure adjustable mechanical seal component of the present invention, can be formed by above-mentioned various textural associations, can play above-mentioned effect equally.
Above the impeller type pressure adjustable mechanical seal component of the preferred embodiment of the present invention is illustrated, but the present invention is not limited to above-mentioned concrete mode of execution, only otherwise depart from the scope of claim, can various distortion or change be carried out.Present invention resides in the various distortion in the scope of claim and change.
Claims (7)
1. an impeller type pressure adjustable mechanical seal component, is characterized in that,
There is axle sleeve, the rotating ring be arranged on the outer circumferential face of described axle sleeve, the stationary ring abutted with the end face of described rotating ring and accommodating described axle sleeve, described rotating ring, described stationary ring mechanical seal housing,
Be formed between the outer circumferential face and the inner peripheral surface of described mechanical seal housing of described rotating ring and cool insulating liquid path, on described cooling insulating liquid path, the outer circumferential face of described rotating ring is provided with cooling insulating liquid drives impeller, described mechanical seal housing is formed the volute space coordinated with described cooling insulating liquid drives impeller surrounding described cooling insulating liquid drives impeller.
2. impeller type pressure adjustable mechanical seal component according to claim 1, is characterized in that, described cooling insulating liquid drives impeller is made up of protecgulum, bonnet and the blade be arranged between described protecgulum and described bonnet.
3. impeller type pressure adjustable mechanical seal component according to claim 2, is characterized in that,
Described mechanical seal housing is made up of the first housing installed successively, spiral case housing and the second housing, and in opposite directions 2 faces of described spiral case housing and described first housing are formed with ring-type spiral case groove respectively,
When described spiral case housing is arranged on described first housing, 2 described ring-type spiral case grooves form the volute space surrounding described cooling insulating liquid drives impeller, and the downstream side of described volute space more towards described cooling insulating liquid is larger.
4. impeller type pressure adjustable mechanical seal component according to any one of claim 1 to 3, is characterized in that, on described cooling insulating liquid path, arrangement is provided with multistage cooling insulating liquid drives impeller.
5. impeller type pressure adjustable mechanical seal component according to any one of claim 1 to 3, is characterized in that,
There is the locking cover be fixed on by described rotating ring on described axle sleeve at the outer circumferential face overcoat of described axle sleeve, the end face abutted of described locking cover be formed with the first seal groove, in described first seal groove, O RunddichtringO be installed with described rotating ring,
The end face abutted with described rotating ring of described axle sleeve is formed with the second seal groove, in described second seal groove, O-ring seals is installed.
6. impeller type pressure adjustable mechanical seal component according to any one of claim 1 to 3, it is characterized in that, the modulating valve that can carry out opening and closing according to the pressure of the cooling insulating liquid flowed out from described cooling insulating liquid drives impeller is installed in the cooling insulating liquid outlet of described impeller type pressure adjustable mechanical seal component.
7. impeller type pressure adjustable mechanical seal component according to claim 6, it is characterized in that, the pressure transducer detected the pressure of the cooling insulating liquid flowing into described cooling insulating liquid drives impeller is installed at the cooling insulating liquid entrance of described impeller type pressure adjustable mechanical seal component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510154622.4A CN104763674A (en) | 2015-04-02 | 2015-04-02 | Impeller type pressure-adjustable mechanical sealing component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510154622.4A CN104763674A (en) | 2015-04-02 | 2015-04-02 | Impeller type pressure-adjustable mechanical sealing component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104763674A true CN104763674A (en) | 2015-07-08 |
Family
ID=53645696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510154622.4A Pending CN104763674A (en) | 2015-04-02 | 2015-04-02 | Impeller type pressure-adjustable mechanical sealing component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104763674A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654655A (en) * | 2017-11-19 | 2018-02-02 | 北京格瑞福机电科技有限公司 | A kind of mechanical seal with supplement heat rejecter lubricating arrangement |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3498620A (en) * | 1968-01-22 | 1970-03-03 | Borg Warner | Mechanical seal lubrication means |
| CN201096101Y (en) * | 2007-09-06 | 2008-08-06 | 江苏海狮泵业制造有限公司 | Sealing device possessing movable ring with tooth slice and sealing chamber mounted with baffle tongue |
| CN202251979U (en) * | 2011-08-25 | 2012-05-30 | 自贡市耐斯特密封件有限公司 | Seal device capable of realizing self-circulation cooling |
| CN102753830A (en) * | 2010-02-12 | 2012-10-24 | 株式会社荏原制作所 | Submersible motor pump, motor pump, and tandem mechanical seal |
| CN203441810U (en) * | 2013-04-08 | 2014-02-19 | 艾志工业技术集团有限公司 | Constraint self-cooling assembly-type mechanical sealing |
| CN204553321U (en) * | 2015-04-02 | 2015-08-12 | 北京华晟环能科技有限公司 | Impeller type pressure adjustable mechanical seal component |
-
2015
- 2015-04-02 CN CN201510154622.4A patent/CN104763674A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3498620A (en) * | 1968-01-22 | 1970-03-03 | Borg Warner | Mechanical seal lubrication means |
| CN201096101Y (en) * | 2007-09-06 | 2008-08-06 | 江苏海狮泵业制造有限公司 | Sealing device possessing movable ring with tooth slice and sealing chamber mounted with baffle tongue |
| CN102753830A (en) * | 2010-02-12 | 2012-10-24 | 株式会社荏原制作所 | Submersible motor pump, motor pump, and tandem mechanical seal |
| CN202251979U (en) * | 2011-08-25 | 2012-05-30 | 自贡市耐斯特密封件有限公司 | Seal device capable of realizing self-circulation cooling |
| CN203441810U (en) * | 2013-04-08 | 2014-02-19 | 艾志工业技术集团有限公司 | Constraint self-cooling assembly-type mechanical sealing |
| CN204553321U (en) * | 2015-04-02 | 2015-08-12 | 北京华晟环能科技有限公司 | Impeller type pressure adjustable mechanical seal component |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654655A (en) * | 2017-11-19 | 2018-02-02 | 北京格瑞福机电科技有限公司 | A kind of mechanical seal with supplement heat rejecter lubricating arrangement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104864100B (en) | Refrigerant condenser combination sealing system | |
| CN102248445B (en) | The cooling construction of machine tool chief axis | |
| CN204553321U (en) | Impeller type pressure adjustable mechanical seal component | |
| CN105593531B (en) | Centrifugal compressor and relevant assemble method with sealing system | |
| CN108869324A (en) | Liquid-supplying system and its shielded electric pump | |
| CN108591473B (en) | Mechanical sealing device | |
| CN214247423U (en) | Transparent and Brayton cycle system | |
| CN103759015B (en) | Micro-pump type upstream pumping magnetic-fluid sealing device | |
| CN104763674A (en) | Impeller type pressure-adjustable mechanical sealing component | |
| JP6325969B2 (en) | Submersible electric pump with oil return mechanism | |
| CN105473866B (en) | Centrifugal compressor with bearing assembly | |
| US20170002825A1 (en) | Balance piston with a sealing member | |
| CN105683583B (en) | centrifugal compressor and cooling system with cooling system | |
| CN110735794A (en) | Vacuum pump system with oil-lubricated vacuum pump | |
| US2541850A (en) | Shaft seal arrangement | |
| US10208768B2 (en) | Heat shield for pressure casing | |
| CN209370085U (en) | Centrifugal cryogenic liquid pump | |
| CN208634052U (en) | Liquid-supplying system and its shielded electric pump | |
| CN203175986U (en) | Petrochemical pump cover | |
| JP2002139157A (en) | Shaft sealing device | |
| KR100873769B1 (en) | Pump | |
| KR100744044B1 (en) | oil-gear pump having a structure of Magnetic sealant | |
| CN206129685U (en) | Oiling formula fan shaft seal device | |
| CN104948742A (en) | Non-contact type one-way sealing device used for high-speed rotary shafts | |
| CN204784731U (en) | Freezing compressor unit closes sealing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150708 |