CN105605228A - Pressure-adjustable mechanical sealing piece used for combustor pump - Google Patents
Pressure-adjustable mechanical sealing piece used for combustor pump Download PDFInfo
- Publication number
- CN105605228A CN105605228A CN201610098179.8A CN201610098179A CN105605228A CN 105605228 A CN105605228 A CN 105605228A CN 201610098179 A CN201610098179 A CN 201610098179A CN 105605228 A CN105605228 A CN 105605228A
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- ring
- annular
- rotation
- seal
- sealing
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A pressure-adjustable mechanical sealing piece used for a combustor pump comprises parts fixed to a shell, a sealing stationary ring and a special-shaped ring. The inner ring of the special-shaped ring is sleeved with a lower step of the stationary ring, and the outer ring of the special-shaped ring is fixed to the inner wall of a machine base through interference fit. A movable ring part comprises a movable ring rotation sealing face, wherein a seal ring of the movable ring part is clamped to a pump shaft rotation part through interference fit, and an O-shaped seal ring is matched between the sealing face of the movable ring part and the rotation part. A U-shaped annular ring is located between the movable ring rotation part and a shaft through interference fit. The U-shaped annular ring can be of a multilayer overlaid mode. A frustum annular pressing ring is located between the rotation part and the shaft. A flat plate gasket is matched between the frustum annular pressing ring and a conical spring. The U-shaped annular ring and the frustum annular pressing ring are combined into an annular sealing component set to be contained in the concave part of the rotation part. The conical spring pushes and presses the movable ring rotation sealing face and the rotation part to the connection face of the sealing stationary ring to form an overall structure. The pressure-adjustable mechanical sealing piece is simple and compact in structure, high pressure can be adjusted, and the pressure-adjustable mechanical sealing piece can resist to almost all organic media.
Description
Technical field
The mechanical seal field that the present invention relates to be assembled to the resistance to organic media on burning pump, also goes for owningMechanical seal on slewing in type industry.
Background technology
1. original pump of resistance to organic media, is substantially all resistance to one or more media wherein, such as resistance to methyl alcohol, ethanol pumpCan be applicable to alcohols pump, and aromatic hydrocarbons, benzene class etc. just cannot use, main cause is that hermetically-sealed construction and sealing member material cannot lead toWith, nitrile rubber is water-fast, wet goods only, cannot resistance to organic benzene class medium; The alcohols such as the resistance to methyl alcohol of fluorubber, and cannot resistance to benzene and aromatic hydrocarbonsClass medium, causes mechanical sealing member just can only be applicable to the medium of fraction, and compression resistance is little at 0.3MPa ~ 0.6MPa not etc.
2. because nation needs is eliminated original coal-burning boiler, avoid fired coal combustion to cause air pollution, existing to improve hazeResemble, require to use clean fuel oil instead, i.e. the organic incendivity medium of environmental protection, comprises the benzene such as the alcohols such as natural gas, methanol/ethanol, tolueneClass, aromatic hydrocarbons, kerosene, diesel oil etc. These media that need to burn are just badly in need of wanting combustor, and combustor conveying high-pressure medium justWant combustor dedicated pump.
3. burning pump belongs to burning organic media, and wide range almost can, with all media that can burn, compriseOil, alcohols, aromatic hydrocarbons, ethers, lipid, benzene class etc., and need high pressure resistant, flow is little, high temperature resistant, compression resistance 1MPa ~5MPa, and conventional pump is owing to there is no applicable pump configuration, there is no reasonable mechanical sealing member structure and material, cannot be applicable to burningMachine long-play does not have adjustable, the resistance to all organic medias of pressure, high pressure resistant, resistant to elevated temperatures machine simultaneously on original marketTool seal.
4. in the open structure of original mechanical sealing member patent CN201380066216, the ring structure using is substantiallyBelong to pressure common sealing, general pressure can not exceed 1.2MPa, comprises that stationary ring hermetically-sealed construction is circular O type circle, once pressureIncrease and will be out of shape, even ftracture and be extruded, make seal failure; And the encapsulant that standard machinery hermetically-sealed construction uses existsEasily aging in air, such as: nitrile rubber, fluorubber etc. are ageing-resistant and organic media corrosive effect is poor, and service life is short,Withstand voltage low. Therefore be badly in need of adopting media-resistant king, polytetrafluoroethylmaterial material, but because polytetrafluoroethylmaterial material hardness is large, Wu FajianSingly be applied on mechanical sealing member.
Summary of the invention
The invention provides a kind of object and be to overcome above-mentioned weak point of the prior art and provide a kind of simple in structure,Realize low cost, high efficiency, corrosion-resistant, high temperature resistant, long service life, easy to maintenance, to install and change conveniently, pressure is adjustable onePlant the pump high pressure adjustable mechanical seal that is used for burning.
The present invention realizes in the following way:
1. for the pump specialty high pressure adjustable mechanical seal that burns, can between counterrotating element (5,3), carryFor not organic media mechanical seal thoroughly. Sealing comprises: be fixed to the standing part of frame shell, and fixing close comprising supportEnvelope stationary ring (5) and fixing ring (9), fixing ring (9) inner ring is inserted in stationary ring gets out of a predicament or an embarrassing situation and is fixed on outer ring interference fitSupport (1) inwall; Rotation movable ring part (3) part comprises rotation seal ring of moving ring (4); To rotate seal ring of moving ring (4) interferenceBe matched with the rotation movable ring part (3) at rotation position; Between rotation seal ring of moving ring (4) and rotation movable ring part (3), join passableIs furnished with flexible O type circle (12); Be positioned at the U annular ring (6) that between rotation movable ring part (3) and main shaft (2), interference fit coordinates, andAnd U annular ring (6) can Multi-stacking compaction; The upper casing pressure of U annular ring (6) is positioned between rotation movable ring part (3) and main shaft (2)Frustum annular compacting ring (7); Frustum annular compacting ring (7) above and between volute spring (8) is furnished with flat gasket (11), simultaneouslyU annular ring (6) is combined as annular seat component group with frustum annular compacting ring (7), is received within the recess of rotating part; ConeShape spring (8) will rotate seal ring of moving ring (4), rotation movable ring part (3), flat gasket (11), frustum annular compacting ring (7),U annular ring (6) is urged to fixing seal stationary ring (5) face composition surface together simultaneously, forms overall structure.
2. sealing according to claim 1, wherein, described standing part is inserted in stationary ring platform by fixing ring (9)Rank hermetic unit is fixed; Wherein, described fixing ring (9) has the structure of its uniqueness, inner circle and cylindrical have 2 ~ 3 concavo-convexPlatform, fixing ring (9) recess (91) and fixing ring (9) protuberance (92), fixing ring (9) recess (91) can pass intoProtection buffer medium (as: oil), described standing part in the time exerting pressure to fixing ring (9), described fixing ring(9) can more closely be sealed in stationary seal ring (5) and support (1).
3. sealing according to claim 1, described in to be characterized as fixing stationary ring can be plane, can be also boss structure(52), rotation movable ring part (3) can be plane minute surface, both sealings bonded to each other, and can mutually rotate.
4. sealing according to claim 1, described in be characterized as in rotation movable ring part (3), have upper strata recess (31) and underLayer recess (32) with rotation seal ring of moving ring (4) be independently part and be interconnected with one another; Described rotation rotating ring front cover byRotation rotating ring upper strata recess (31) snaps in relevant position and is urged to stationary seal face by spring; On described rotation rotating ring, there is upper strataRecess (31) is in lower floor's recess (32), and wherein lower floor's recess (32) can be furnished with flexible O type circle (12); Described rotation movable ring part(3) having detent (33) radially to protrude (81) with volute spring (8) top embeds mutually.
5. sealing according to claim 1, described in be characterized as the annular being received within rotation movable ring part (3) recessContainment member group is by two or more U annular rings, described U annular ring; Wherein two upper lateral parts of U annular ring be thin-walled bottom graduallyThick, can deformation nested against one another, middle U-shaped cavity.
6. sealing according to claim 1, wherein said frustum annular compacting ring (7), frustum annular compacting ring (7) canBe pressed into completely in U annular ring (6); And there is the oblique angle open form breach (71) being staggered with the center of circle on frustum annular compacting ring (7).
7. sealing according to claim 1, described volute spring (8) is characterized in that enlarged head point compression flat gasket(11), major part spring tail end has radially protrusion (81), radially protrudes (81) insertion detents (33) and locates to drive rotating ring (3) to turnMoving; Described volute spring (8) microcephaly holds circle internal diameter interference fit in rotating shaft, afterbody have axial protrusion (82) spring wire and canBe fixed on to insert the parts (as water pump vane) that top cooperation is rotated with rotating shaft.
Brief description of the drawings
Accompanying drawing is as follows:
Fig. 1 illustrates seal rotating ring band sealing ring assembly viewgraph of cross-section;
Fig. 2 illustrates integral seal stationary ring band boss assembly viewgraph of cross-section;
Fig. 3 shows the sealing viewgraph of cross-section of U annular ring;
Fig. 4 shows rotation movable ring part viewgraph of cross-section;
Fig. 5 shows frustum annular compacting ring viewgraph of cross-section;
Fig. 6 shows fixing ring viewgraph of cross-section;
Accompanying drawing title numbering: support (1); Main shaft (2); Rotation movable ring part (3); Upper strata recess (31); Lower floor's recess (32); FixedPosition groove (33); Rotation seal ring of moving ring (4); Stationary seal ring (5); Boss structure (52); U annular ring (6); Frustum annular compressesCircle (7); Breach (71); Volute spring (8); Radially protrude (81); Axially protrude (82); Fixing ring (9); Fixing ring(9) recess (91); Fixing ring (9) protuberance (92); Flat gasket (11); Flexible O type circle (12).
Detailed description of the invention:
1. by existing brief description of the drawings, the one pump specialty high pressure adjustable mechanical seal that is used for burning, with model be interior through 14The mechanical seal of type is that example further illustrates.
2. for the pump specialty high pressure adjustable mechanical seal that burns, can counterrotating element (5,3) itBetween organic media mechanical seal is thoroughly provided, sealing comprises: be fixed to the standing part of frame shell, solid comprising supportDetermine stationary seal ring (5) and fixing ring (9), fixing ring (9) inner ring is inserted in stationary ring gets out of a predicament or an embarrassing situation solid with outer ring interference fitDue to support (1) inwall, ensure that stationary ring fixedly secures on support in fixing ring (9), make plane minute surface on it keep waterFlat.
3. rotation movable ring part (3) part shell adopts that stainless steel is barrel-shaped to be processed, and lower plane working groove, will rotate and moveRing sealing ring (4) interference fit is in the rotation movable ring part (3) at rotation position; Rotation seal ring of moving ring (4) and rotation rotating ring portionBetween part (3), join and can be furnished with flexible O type circle (12) as fluorine glue, polytetrafluoroethylene (PTFE), flexible metal etc.; Rotating ring sealing is revolved in guaranteeCircle (4) level and sealing, do not make liquid or organic media spill between rotation seal ring of moving ring (4) and groove.
4. be positioned at the U annular ring (6) of interference fit between rotation movable ring part (3) and main shaft (2) external diameter, and U ringShape circle (6) can Multi-stacking compaction; If model is the sealing U annular ring (6) of 14 types, draw U annular ring of data by detection(6) can the pressure of resistance to 1.2MPa, 2 sealing U annular rings (6) can the pressure of resistance to 2.4MPa, and 3 sealing U annular rings (6) canPressure of resistance to 3.8MPa etc., can adopt the sealing U annular ring (6) of varying number to adjust withstand voltage by change, this U ringShape circle (6) structure is owing to adopting polytetrafluoroethylmaterial material, can resistance to nearly all organic media, and long service life.
5. one kind is positioned at rotation movable ring part (3) for casing pressure on the pump specialty high pressure adjustable mechanical seal that burnsAnd the frustum annular compacting ring (7) between main shaft (2); Frustum annular compacting ring (7) above and between volute spring (8) is furnished with flat boardPad (11) is combined as annular seat component group with frustum annular compacting ring (7) in U annular ring (6) inner ring simultaneously, is received withinIn the recess of rotating part. Volute spring (8) will rotate seal ring of moving ring (4), rotation movable ring part (3), flat gasket (11),Frustum annular compacting ring (7), while U annular ring (6) are urged to fixing seal stationary ring (5) face composition surface together, form entirety knotStructure.
2. the standing part described in is inserted in stationary ring step hermetic unit by fixing ring (9) to be fixed; Wherein, described differentRunddichtringO (9) has the structure of its uniqueness, and inner circle and cylindrical have 2 ~ 3 concavo-convex, and fixing ring (9) recess (91) is with special-shapedSealing ring (9) protuberance (92), fixing ring (9) recess (91) can pass into protection buffer medium silicone oil, makes fixing ring (9)Inside has hydraulic pressure to exist, and ensures not make concavo-convex to flatten because pressure is high or concavo-convex breaking through under high pressure, causes seal failure, phaseWhen have the effect of 2 ~ 3 sealing rings in a teflin ring, increase system is greatly born pressure, also can simultaneouslyProtection fixing ring (9) does not occur aging under adverse circumstances, by phenomenons such as dielectric corrosions; Even if stationary ring for a certain reasonCause while rotating with respect to support (1) with fixing ring (9), lubrication also can be provided within the regular hour,Ensure normal use and do not make seal failure; Described standing part is in the time exerting pressure to fixing ring (9), and abnormal shape sealsCircle (9) can more closely be sealed in stationary seal ring (5) and support (1).
3. fixing stationary ring can be plane, can be also boss structure (52), and rotation movable ring part (3) can be level crossingFace, both sealings bonded to each other, and can mutually rotate; If adopt the direct boss structure of stationary ring, rotating ring is close without rotation rotating ringSeal (4), rotating ring will directly use as friction pair, use the materials such as carborundum, pottery, make surface mill minute surface and coordinate stationary ringRelative engagement movement effects the best of doing.
4. on rotation movable ring part (3), there are upper strata recess (31) and lower floor's recess (32) and rotation seal ring of moving ring (4) to beIndependently part and be interconnected with one another; Described rotation rotating ring front cover snaps in relevant position by rotating rotating ring upper strata recess (31)And be urged to stationary seal face by spring; On described rotation rotating ring, there is upper strata recess (31) in lower floor's recess (32), wherein lower floorRecess (32) can be furnished with flexible O type circle (12); Described rotation movable ring part (3) has on detent (33) and volute spring (8)Portion radially protrudes (81) and inserts mutually.
5. the annular seat component group in rotation movable ring part (3) recess is by two or more U annular rings, described U annularCircle; Wherein two upper lateral parts of U annular ring are that thin-walled bottom is gradually thick, and 0.15 ~ 0.2 millimeter of top, both sides wall thickness, with gradually thick arriving of bottomBottom thickness is 0.5 millimeter, can deformation and nested against one another, and middle U-shaped cavity, it is high that wall thickness can solve polytetrafluoroethylene (PTFE) hardnessDeficiency that cannot dough deformation, coherent detection show that the plastic deformation rate of 14 type seal U circles is in 15% left and right.
6. frustum annular compacting ring (7), frustum annular compacting ring (7) can be pressed in U annular ring (6) completely; And frustum ringOn shape compacting ring (7), there is the oblique angle open form breach (71) being staggered with the center of circle, frustum annular compacting ring (7) bottom of this 14 type sealingTaper and U-shaped circle inwall shape are used same size, and internal diameter is 1.7 millimeters of 14.2 millimeters of thickness, and breach (71) opening adopts 1.2 millisRice, the effect of its opening is that compacting ring has the size that changes circle with external dimensions variation, has had elasticity, along with pressure simultaneouslyThe difference of power, its high and low position difference in U-shaped circle, frustum annular compacting ring (7) is adjustable space size.
7. volute spring (8) is characterized in that enlarged head is divided and compresses flat gasket (11), and major part spring tail end has radially and to protrude(81), radially protrusion (81) insertion detents (33) are located and driven rotary movable ring part (3) rotation; Described volute spring(8) microcephaly holds circle internal diameter interference fit in rotating shaft, and afterbody has the spring wire of axial protrusion (82) and can insert and is fixed onPortion coordinates the parts (as water pump vane) that rotate with rotating shaft.
The present invention is simple in structure, easy to operate, use, utilizes material characteristic and unique novelty of polytetrafluoroethylene (PTFE)Structural design, successfully solved now the pump seal durability that burns on market too short with cannot bear multiple pressure,The problem that pressure cannot regulate automatically, has supplied the blank of combustor pump seal now, has realized burning pump at different ringsCan long-play under the different conditions that require of the different organic medias in border, improve service life, increase use field, excellentChange service efficiency, reached effect high temperature resistant, corrosion-resistant, automatic pressure regulation. Similar structure is all this guarantor therewithProtect in scope.
Claims (9)
1. for the pump specialty high pressure adjustable mechanical seal that burns, can between counterrotating element (5,3), carryFor not organic media mechanical seal thoroughly.
2. sealing comprises: be fixed to the standing part of frame shell, comprising support fixing seal stationary ring (5) and special-shaped closeSeal (9), fixing ring (9) inner ring is inserted in stationary ring gets out of a predicament or an embarrassing situation and is fixed on support (1) inwall with outer ring interference fit; Rotation is movingRing component (3) part comprises rotation seal ring of moving ring (4); To rotate seal ring of moving ring (4) interference fit revolving in rotation positionSwivel becket parts (3); Between rotation seal ring of moving ring (4) and rotation movable ring part (3), join and can be furnished with flexible O type circle (12);Be positioned at the U annular ring (6) that between rotation movable ring part (3) and main shaft (2), interference fit coordinates, and U annular ring (6) canMulti-stacking compaction; The upper casing pressure of U annular ring (6) is positioned at the frustum annular compacting ring between rotation movable ring part (3) and main shaft (2)(7); Frustum annular compacting ring (7) above and between volute spring (8) is furnished with flat gasket (11), simultaneously U annular ring (6) and frustumAnnular compacting ring (7) is combined as annular seat component group, is received within the recess of rotating part.
3. volute spring (8) will rotate seal ring of moving ring (4), rotation movable ring part (3), flat gasket (11), frustum annular pressureCollar (7), while U annular ring (6) are urged to fixing seal stationary ring (5) face composition surface together, form overall structure.
4. sealing according to claim 1, wherein, it is close that described standing part is inserted in stationary ring step by fixing ring (9)Envelope partial fixing; Wherein, described fixing ring (9) has the structure of its uniqueness, and inner circle and cylindrical have 2 ~ 3 concavo-convex, differentRunddichtringO (9) recess (91) and fixing ring (9) protuberance (92), fixing ring (9) recess (91) can pass into protectionBuffer medium (as: oil), described standing part in the time exerting pressure to fixing ring (9), described fixing ring (9) meetingMore closely be sealed in stationary seal ring (5) and support (1).
5. sealing according to claim 1, described in to be characterized as fixing stationary ring can be plane, can be also boss structure(52), rotation movable ring part (3) sealing surface can be plane minute surface, both sealings bonded to each other, and can mutually rotate.
6. sealing according to claim 1, described in be characterized as in rotation movable ring part (3), have upper strata recess (31) and lower floor recessedPortion (32) with rotation rotating ring seal (4) be independently part and be interconnected with one another; Described rotation rotating ring front cover is moving by rotatingRing upper strata recess (31) snaps in relevant position and is urged to stationary seal face by spring; On described rotation rotating ring, there is upper strata recess(31), in lower floor's recess (32), wherein lower floor's recess (32) can be furnished with flexible O type circle (12); Described rotation movable ring part (3) hasDetent (33) radially protrudes (81) with volute spring (8) bottom and embeds mutually.
7. sealing according to claim 1, described in be characterized as the ring packing being received within rotation movable ring part (3) recessMember group is by two or more U annular rings, described U annular ring; Wherein two upper lateral parts of U annular ring are that thin-walled bottom is gradually thick, canDeformation is nested against one another, middle U-shaped cavity.
8. sealing according to claim 1, wherein said frustum annular compacting ring (7), frustum annular compacting ring (7) can be completeBe pressed in U annular ring (6); And there is the oblique angle open form breach (71) being staggered with the center of circle on frustum annular compacting ring (7).
According to claim 1 sealing, described volute spring (8) it is characterized in that enlarged head divide compress flat gasket (11),Major part spring tail end has radially protrusion (81), radially protrudes (81) insertion Rotation ring positioning grooves (33) and locates driven rotary movable ring part(3) rotate; Described volute spring (8) microcephaly holds circle internal diameter interference fit in rotating shaft, and afterbody has the spring wire of axial protrusion (82)And can insert and be fixed on the parts (as water pump vane) that top cooperation is rotated with rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610098179.8A CN105605228B (en) | 2016-02-23 | 2016-02-23 | One kind being used for combustor pump pressure adjustable mechanical sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610098179.8A CN105605228B (en) | 2016-02-23 | 2016-02-23 | One kind being used for combustor pump pressure adjustable mechanical sealing element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105605228A true CN105605228A (en) | 2016-05-25 |
| CN105605228B CN105605228B (en) | 2018-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610098179.8A Active CN105605228B (en) | 2016-02-23 | 2016-02-23 | One kind being used for combustor pump pressure adjustable mechanical sealing element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105605228B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591451A (en) * | 2018-07-02 | 2018-09-28 | 清华大学 | A kind of mechanical seal intelligent regulating system and method |
| CN110067463A (en) * | 2019-05-01 | 2019-07-30 | 东阳市甘特电气有限公司 | The outer pipe fixation structure of tail-gate push rod |
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| CN101413584A (en) * | 2008-12-03 | 2009-04-22 | 淮海工学院 | Non-contact type mechanical dynamic seal |
| KR100994067B1 (en) * | 2010-09-13 | 2010-11-11 | 극동씰테크 주식회사 | Mechanical seal for high pressure and high speed |
| CN102410371A (en) * | 2011-11-11 | 2012-04-11 | 广西腾亿汽配制造有限公司 | Combined end surface oil seal of U-shaped groove |
| CN102454574A (en) * | 2010-10-17 | 2012-05-16 | 向英 | Alcohol group fuel transportation method and alcohol group fuel burning machine special pump |
| EP2905518A1 (en) * | 2012-10-03 | 2015-08-12 | NOK Corporation | Sealing device |
| CN105317732A (en) * | 2015-10-19 | 2016-02-10 | 陕西科技大学 | Sealing device of ammonia feeding device |
| CN205534233U (en) * | 2016-02-23 | 2016-08-31 | 亿德机电科技（福建）有限公司 | Be used for adjustable mechanical seal of combustor pumping pressure power |
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2016
- 2016-02-23 CN CN201610098179.8A patent/CN105605228B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413584A (en) * | 2008-12-03 | 2009-04-22 | 淮海工学院 | Non-contact type mechanical dynamic seal |
| KR100994067B1 (en) * | 2010-09-13 | 2010-11-11 | 극동씰테크 주식회사 | Mechanical seal for high pressure and high speed |
| CN102454574A (en) * | 2010-10-17 | 2012-05-16 | 向英 | Alcohol group fuel transportation method and alcohol group fuel burning machine special pump |
| CN102410371A (en) * | 2011-11-11 | 2012-04-11 | 广西腾亿汽配制造有限公司 | Combined end surface oil seal of U-shaped groove |
| EP2905518A1 (en) * | 2012-10-03 | 2015-08-12 | NOK Corporation | Sealing device |
| CN105317732A (en) * | 2015-10-19 | 2016-02-10 | 陕西科技大学 | Sealing device of ammonia feeding device |
| CN205534233U (en) * | 2016-02-23 | 2016-08-31 | 亿德机电科技（福建）有限公司 | Be used for adjustable mechanical seal of combustor pumping pressure power |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591451A (en) * | 2018-07-02 | 2018-09-28 | 清华大学 | A kind of mechanical seal intelligent regulating system and method |
| CN110067463A (en) * | 2019-05-01 | 2019-07-30 | 东阳市甘特电气有限公司 | The outer pipe fixation structure of tail-gate push rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105605228B (en) | 2018-11-20 |
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