CN105465036A - Mechanical sealing device for high-pressure oil pipeline pump - Google Patents
Mechanical sealing device for high-pressure oil pipeline pump Download PDFInfo
- Publication number
- CN105465036A CN105465036A CN201510976250.3A CN201510976250A CN105465036A CN 105465036 A CN105465036 A CN 105465036A CN 201510976250 A CN201510976250 A CN 201510976250A CN 105465036 A CN105465036 A CN 105465036A
- Authority
- CN
- China
- Prior art keywords
- ring
- stationary
- seat
- axle sleeve
- press cover
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/06—Lubrication
- F04D29/061—Lubrication especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Sealing (AREA)
Abstract
The invention relates to a mechanical sealing device for a high-pressure oil pipeline pump. The mechanical sealing device comprises a shaft, a shaft sleeve and an outer gland; a movable ring seat is arranged on one end of the shaft sleeve and a movable ring is arranged in the movable ring seat; a stationary ring seat, a ring pushing assembly, a floating throttle ring and a pressing plate are arranged between the outer gland and the shaft sleeve; a mounting sheet is arranged on a right side of the pressing plate; a stationary ring matched with the movable ring is arranged in the stationary ring seat; the ring pushing assembly is connected against the stationary ring seat; a first spring is arranged between the ring pushing assembly and the outer gland, while a second spring is arranged between the floating throttle ring and the outer gland; the movable ring is provided with a first matching surface, while the stationary ring is provided with an outer circumferential surface and a second matching surface matched with the first matching surface of the movable ring; a plurality of hydrodynamic grooves are formed in the junction of the outer circumferential surface of the outer circumferential surface of the stationary ring and the second matching surface; the movable ring is in hard contact with the shaft sleeve in an axial direction, and the stationary ring also is in hard contact with the stationary ring seat in the axial direction, and therefore, a lubricating property and a cooling effect between the movable ring and the station ring are improved.
Description
[technical field]
The present invention relates to mechanical seal field, be specifically related to a kind of high-pressure pipeline line mechanical sealing device used for pump.
[background technique]
Oil transfer pump is the feedway for carrying the oil product such as diesel oil, gasoline, in order to prevent oil leak, can arrange mechanical seal device in oil transfer pump, there is following defect in oil transfer pump of the prior art: the fitting surface liquid film 1, between rotating ring and stationary ring is thinner, lubricity and cooling effect poor; 2, stationary ring of the prior art and rotating ring are non-floating type seal ring, namely rotating ring and axle sleeve contact for soft in the axial direction, stationary ring and stationary seat contact for soft in the axial direction, this kind of soft contact normally arranges O type circle and stationary ring and stationary seat in the axial direction by rotating ring and axle sleeve and arranges that O type circle formed in the axial direction, and the shortcoming of this kind of structure to bear high pressure; 3, mechanical seal device of the prior art is not provided with restrictor ring and leakage hole, once oil leak, oil product will directly leak in air, thus produces pollution to air.
Therefore, be necessary to provide a kind of high-pressure pipeline line mechanical sealing device used for pump solved the problems of the technologies described above.
[summary of the invention]
For solving the problem, the object of the present invention is to provide a kind of high-pressure delivery mechanical sealing device used for pump that can bear high pressure.
For achieving the above object, the technological scheme that the present invention takes is: a kind of high-pressure pipeline line mechanical sealing device used for pump, comprise, axle, axle sleeve and outer press cover, one end of described axle sleeve is provided with rotating seat, fixed by the first fixed block between described rotating seat and axle sleeve, rotating ring is provided with in described rotating seat, stationary seat is provided with between described outer press cover and axle sleeve, throw-out collar assembly, float restrictor ring and pressing plate, the right side of described pressing plate is provided with installation sheet, fixed by the second fixed block between described installation sheet and pressing plate and outer press cover, the stationary ring matched with rotating ring is provided with in described stationary seat, described throw-out collar assembly and stationary seat abut against, the first spring is provided with between described throw-out collar assembly and outer press cover, the second spring is provided with between described floating restrictor ring and outer press cover, described rotating ring is provided with the first fitting surface, the second fitting surface that described stationary ring is provided with outer peripheral surface and matches with the first fitting surface of rotating ring, the outer peripheral surface of described stationary ring and the intersection of the second fitting surface are provided with several fluid dynamic pressure groove, several fluid dynamic pressure groove connects with the oil pocket of oil line pump respectively, described rotating ring and axle sleeve are in the axial direction for firmly to contact, described stationary ring and stationary seat are in the axial direction for firmly to contact, described outer press cover is provided with drain tap.
Preferably, in above-mentioned a kind of high-pressure pipeline line mechanical sealing device used for pump, described outer press cover comprises the protuberance that main part and main body protrude out, and described protuberance is provided with 8 ~ 10 conduction holes, and described drain tap is arranged on the main part of outer press cover.
Preferably, in above-mentioned a kind of high-pressure pipeline line mechanical sealing device used for pump, be provided with the first stop pin between described rotating ring and axle sleeve, between described floating restrictor ring and pressing plate, be provided with the second stop pin.
Preferably, in above-mentioned a kind of high-pressure pipeline line mechanical sealing device used for pump, described stationary seat is arranged with circular groove from inner peripheral surface.
Preferably, in above-mentioned a kind of high-pressure pipeline line mechanical sealing device used for pump, described first fixed block is interior hexagonal cylindrical end Cock screw, and described second fixed block is hexagon socket cap head screw.
Preferably, in above-mentioned a kind of high-pressure pipeline line mechanical sealing device used for pump, the right side of described installation sheet is provided with seize device assembly, described seize device assembly comprises the internal jacket be installed on axle sleeve and the left chuck be installed in internal jacket and right chuck, be bolted between described left chuck and right chuck, described left chuck with between internal jacket for inclined-plane coordinates, described right chuck with between internal jacket for inclined-plane coordinates.
Preferably, in above-mentioned a kind of high-pressure pipeline line mechanical sealing device used for pump, axle sleeve O type circle is provided with between described axle sleeve and axle, rotating seat O type circle is provided with between described axle sleeve and rotating seat, rotating ring O type circle is provided with between described rotating ring and rotating seat, described stationary ring and stationary seat are provided with stationary ring O type circle diametrically, are provided with stationary seat O type circle and stationary ring pad between described stationary seat and outer press cover, are provided with pressing plate O type circle between described pressing plate and outer press cover.
Compared with prior art, the present invention has following beneficial effect: the mechanical seal device in the present invention by being provided with several fluid dynamic pressure groove on stationary ring, when in the process that axle rotates, oil in oil pocket enters in the fitting surface of rotating ring and stationary ring by several fluid dynamic pressure groove, thus make the liquid film between rotating ring and stationary ring thickening, increase the lubricity between rotating ring and stationary ring and cooling effect; Mechanical seal device in the present invention by rotating ring with axle sleeve in the axial direction for firmly to contact, stationary ring and stationary seat in the axial direction for firmly to contact, thus make to form floating sealing ring between rotating ring and stationary ring, can bear higher pressure.
[accompanying drawing explanation]
Fig. 1 is the structural representation of mesohigh petroleum pipeline mechanical sealing device used for pump of the present invention.
Fig. 2 is the partial enlarged drawing at A place in Fig. 1.
In Fig. 1 and Fig. 2: 1, axle, 2, axle sleeve, 3, outer press cover, 4, rotating seat, 5, first fixed block, 6, rotating ring, 7, stationary seat, 8, throw-out collar assembly, 9, float restrictor ring, 10, pressing plate, 11, installation sheet, 12, second fixed block, 13, stationary ring, 14, first spring, 15, second spring, 16, first fitting surface, 17, outer peripheral surface, 18, second fitting surface, 19, fluid dynamic pressure groove, 20, drain tap, 21, main part, 22, protuberance, 23, conduction hole, 24, first stop pin, 25, second stop pin, 26, circular groove, 27, internal jacket, 28, left chuck, 29, right chuck, 30, bolt, 31, axle sleeve O type circle, 32, rotating seat O type circle, 33, rotating ring O type circle, 34, stationary ring O type circle, 35, stationary seat O type circle, 36, stationary ring pad, 37, pressing plate O type circle.
[embodiment]
Shown in ginseng Fig. 1 and Fig. 2, a kind of high-pressure pipeline line mechanical sealing device used for pump, comprise: axle 1, axle sleeve 2 and outer press cover 3, one end of described axle sleeve 2 is provided with rotating seat 4, fixed by the first fixed block 5 between described rotating seat 4 and axle sleeve 2, in the present embodiment, described first fixed block 5 is interior hexagonal cylindrical end Cock screw, rotating ring 6 is provided with in described rotating seat 4, stationary seat 7 is provided with between described outer press cover 3 and axle sleeve 2, throw-out collar assembly 8, float restrictor ring 9 and pressing plate 10, the right side of described pressing plate 10 is provided with installation sheet 11, fixed by the second fixed block 12 between described installation sheet 11 and pressing plate 10 and outer press cover 3, in the present embodiment, described second fixed block 12 is hexagon socket cap head screw.The stationary ring 13 matched with rotating ring 6 is provided with in described stationary seat 7, described throw-out collar assembly 8 abuts against with stationary seat 7, the first spring 14 is provided with between described throw-out collar assembly 8 and outer press cover 3, the second spring 15 is provided with between described floating restrictor ring 9 and outer press cover 3, described rotating ring 6 is provided with the first fitting surface 16, the second fitting surface 18 that described stationary ring 13 is provided with outer peripheral surface 17 and matches with the first fitting surface 16 of rotating ring 6, the outer peripheral surface 17 of described stationary ring 13 and the intersection of the second fitting surface 18 are provided with several fluid dynamic pressure groove 19, several fluid dynamic pressure groove 19 connects with the oil pocket of oil line pump respectively, described rotating ring 6 and axle sleeve 2 are in the axial direction for firmly to contact, namely rotating ring 6 and axle sleeve 2 do not arrange O type circle in the axial direction, described stationary ring 13 and stationary seat 7 are in the axial direction for firmly to contact, namely stationary ring 13 and stationary seat 7 do not arrange O type circle in the axial direction, described outer press cover 3 is provided with drain tap 20.Described outer press cover 3 comprises the protuberance 22 that main part 21 and main body protrude out, and described protuberance 22 is provided with 8 ~ 10 conduction holes 23, can be rinsed uniformly by above-mentioned conduction hole 23 to sealing surface, thus reaches the effect of cooling, lubrication.Described drain tap 20 is arranged on the main part 21 of outer press cover 3.When occurring to leak between stationary ring 13 and rotating ring 6, the oil of leakage can be stopped by floating type restrictor ring 9, and the drain tap 20 from outer press cover 3 flows out and reclaims by the oil of leakage, thus the oil of Leakage prevention can enter into air pollutant atmosphere.Be provided with the first stop pin 24 between described rotating ring 6 and axle sleeve 2, between described floating restrictor ring 9 and pressing plate 10, be provided with the second stop pin 25.Described stationary seat 7 is arranged with circular groove 26 from inner peripheral surface, and the function of this circular groove 26 is dispersive stresses.The right side of described installation sheet 11 is provided with seize device assembly, described seize device assembly comprises the internal jacket 27 be installed on axle sleeve 2 and the left chuck 28 be installed in internal jacket 27 and right chuck 29, be connected by bolt 30 between described left chuck 28 with right chuck 29, described left chuck 28 with between internal jacket 27 for inclined-plane coordinates, described right chuck 29 with between internal jacket 27 for inclined-plane coordinates.The function of described seize device assembly prevents axle sleeve from moving axially relative to axle.Axle sleeve O type circle 31 is provided with between described axle sleeve 2 and axle 1, rotating seat O type circle 32 is provided with between described axle sleeve 2 and rotating seat 4, rotating ring O type circle 33 is provided with between described rotating ring 6 and rotating seat 4, described stationary ring 13 is provided with stationary ring O type circle 34 diametrically with stationary seat 7, stationary seat O type circle 35 and stationary ring pad 36 is provided with between described stationary seat 7 and outer press cover 3, be provided with pressing plate O type circle 37 between described pressing plate 10 and outer press cover 3, thus there is good sealing.
In sum, mechanical seal device in the present invention by being provided with several fluid dynamic pressure groove 19 on stationary ring 13, when in the process that axle 1 rotates, oil in oil pocket enters rotating ring 6 with in the fitting surface of stationary ring 13 by several fluid dynamic pressure groove 19, thus make the liquid film between rotating ring 6 and stationary ring 13 thickening, increase lubricity and cooling effect between rotating ring 6 and stationary ring 13; Mechanical seal device in the present invention passes through rotating ring 6 with axle sleeve 2 in the axial direction for firmly to contact, and stationary ring 13 and stationary seat 7 in the axial direction for firmly to contact, thus make to form floating sealing ring between rotating ring 6 and stationary ring 13, can bear higher pressure.
Above embodiment is only the preferred embodiment of this creation, and not in order to limit this creation, any amendment made within all spirit in this creation and principle, equivalent replacement, improvement etc., within the protection domain that all should be included in this creation.
Claims (7)
1. a high-pressure pipeline line mechanical sealing device used for pump, it is characterized in that: comprise, axle, axle sleeve and outer press cover, one end of described axle sleeve is provided with rotating seat, fixed by the first fixed block between described rotating seat and axle sleeve, rotating ring is provided with in described rotating seat, stationary seat is provided with between described outer press cover and axle sleeve, throw-out collar assembly, float restrictor ring and pressing plate, the right side of described pressing plate is provided with installation sheet, fixed by the second fixed block between described installation sheet and pressing plate and outer press cover, the stationary ring matched with rotating ring is provided with in described stationary seat, described throw-out collar assembly and stationary seat abut against, the first spring is provided with between described throw-out collar assembly and outer press cover, the second spring is provided with between described floating restrictor ring and outer press cover, described rotating ring is provided with the first fitting surface, the second fitting surface that described stationary ring is provided with outer peripheral surface and matches with the first fitting surface of rotating ring, the outer peripheral surface of described stationary ring and the intersection of the second fitting surface are provided with several fluid dynamic pressure groove, several fluid dynamic pressure groove connects with the oil pocket of oil line pump respectively, described rotating ring and axle sleeve are in the axial direction for firmly to contact, described stationary ring and stationary seat are in the axial direction for firmly to contact, described outer press cover is provided with drain tap.
2. a kind of high-pressure pipeline line mechanical sealing device used for pump as claimed in claim 1, it is characterized in that: described outer press cover comprises the protuberance that main part and main body protrude out, described protuberance is provided with 8 ~ 10 conduction holes, and described drain tap is arranged on the main part of outer press cover.
3. a kind of high-pressure pipeline line mechanical sealing device used for pump as claimed in claim 1, is characterized in that: be provided with the first stop pin between described rotating ring and axle sleeve, is provided with the second stop pin between described floating restrictor ring and pressing plate.
4. a kind of high-pressure pipeline line mechanical sealing device used for pump as claimed in claim 1, is characterized in that: described stationary seat is arranged with circular groove from inner peripheral surface.
5. a kind of high-pressure pipeline line mechanical sealing device used for pump as claimed in claim 1, is characterized in that: described first fixed block is interior hexagonal cylindrical end Cock screw, and described second fixed block is hexagon socket cap head screw.
6. a kind of high-pressure pipeline line mechanical sealing device used for pump as claimed in claim 1, it is characterized in that: the right side of described installation sheet is provided with seize device assembly, described seize device assembly comprises the internal jacket be installed on axle sleeve and the left chuck be installed in internal jacket and right chuck, be bolted between described left chuck and right chuck, described left chuck with between internal jacket for inclined-plane coordinates, described right chuck with between internal jacket for inclined-plane coordinates.
7. a kind of high-pressure pipeline line mechanical sealing device used for pump as claimed in claim 1, it is characterized in that: between described axle sleeve and axle, be provided with axle sleeve O type circle, rotating seat O type circle is provided with between described axle sleeve and rotating seat, rotating ring O type circle is provided with between described rotating ring and rotating seat, described stationary ring and stationary seat are provided with stationary ring O type circle diametrically, be provided with stationary seat O type circle and stationary ring pad between described stationary seat and outer press cover, between described pressing plate and outer press cover, be provided with pressing plate O type circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510976250.3A CN105465036A (en) | 2015-12-23 | 2015-12-23 | Mechanical sealing device for high-pressure oil pipeline pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510976250.3A CN105465036A (en) | 2015-12-23 | 2015-12-23 | Mechanical sealing device for high-pressure oil pipeline pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105465036A true CN105465036A (en) | 2016-04-06 |
Family
ID=55603099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510976250.3A Pending CN105465036A (en) | 2015-12-23 | 2015-12-23 | Mechanical sealing device for high-pressure oil pipeline pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105465036A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355415A (en) * | 2017-07-28 | 2017-11-17 | 丹东克隆集团有限责任公司 | Nuclear power condensate pump mechanically-sealing apparatus |
| CN110645160A (en) * | 2019-06-21 | 2020-01-03 | 中国计量大学上虞高等研究院有限公司 | Stroke hydraulic valve control rotor plunger composite pump machine |
| CN111043070A (en) * | 2019-12-12 | 2020-04-21 | 大连双龙泵业制造有限公司 | Mechanical seal for pump |
| CN111365249A (en) * | 2020-03-12 | 2020-07-03 | 扶冉(上海)流体技术有限公司 | Mechanical seal for sanitary pump |
| CN112096652A (en) * | 2020-09-02 | 2020-12-18 | 航天科工火箭技术有限公司 | Liquid disengaging type dynamic sealing device |
| CN114008329A (en) * | 2019-07-09 | 2022-02-01 | 伟尔矿物欧洲有限公司 | Sealing element |
Citations (7)
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| US3168871A (en) * | 1962-07-10 | 1965-02-09 | Roth Co Roy E | Means for controlling pressure drop between adjacent chambers of a pump or from insid of pump case to outside atmosphere |
| JPH0988884A (en) * | 1995-09-18 | 1997-03-31 | Hitachi Ltd | Mechanical seal for centrifugal compressor |
| CN2830730Y (en) * | 2005-04-15 | 2006-10-25 | 江苏双达泵阀集团有限公司 | Fluid hydrodynamic mechanical seal |
| CN202756286U (en) * | 2012-05-20 | 2013-02-27 | 杭州青华实业有限公司 | Double-end-face mechanical sealing device used for slurry pump |
| CN202955019U (en) * | 2012-12-05 | 2013-05-29 | 东莞市华汇精密机械有限公司 | Mechanical sealing device for low-density volatile medium |
| CN103486075A (en) * | 2013-09-19 | 2014-01-01 | 丹东克隆集团有限责任公司 | Static ring component of nuclear power charging pump mechanical seal device |
| CN205207257U (en) * | 2015-12-23 | 2016-05-04 | 江苏华青流体科技有限公司 | High pressure mechanical seal device for oil conveying pipeline pump |
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2015
- 2015-12-23 CN CN201510976250.3A patent/CN105465036A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3168871A (en) * | 1962-07-10 | 1965-02-09 | Roth Co Roy E | Means for controlling pressure drop between adjacent chambers of a pump or from insid of pump case to outside atmosphere |
| JPH0988884A (en) * | 1995-09-18 | 1997-03-31 | Hitachi Ltd | Mechanical seal for centrifugal compressor |
| CN2830730Y (en) * | 2005-04-15 | 2006-10-25 | 江苏双达泵阀集团有限公司 | Fluid hydrodynamic mechanical seal |
| CN202756286U (en) * | 2012-05-20 | 2013-02-27 | 杭州青华实业有限公司 | Double-end-face mechanical sealing device used for slurry pump |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355415A (en) * | 2017-07-28 | 2017-11-17 | 丹东克隆集团有限责任公司 | Nuclear power condensate pump mechanically-sealing apparatus |
| CN107355415B (en) * | 2017-07-28 | 2023-07-18 | 丹东克隆集团有限责任公司 | Nuclear power condensate pump mechanical seal device |
| CN110645160A (en) * | 2019-06-21 | 2020-01-03 | 中国计量大学上虞高等研究院有限公司 | Stroke hydraulic valve control rotor plunger composite pump machine |
| CN114008329A (en) * | 2019-07-09 | 2022-02-01 | 伟尔矿物欧洲有限公司 | Sealing element |
| CN114008329B (en) * | 2019-07-09 | 2024-03-12 | 伟尔矿物欧洲有限公司 | Sealing element |
| CN111043070A (en) * | 2019-12-12 | 2020-04-21 | 大连双龙泵业制造有限公司 | Mechanical seal for pump |
| CN111365249A (en) * | 2020-03-12 | 2020-07-03 | 扶冉(上海)流体技术有限公司 | Mechanical seal for sanitary pump |
| CN112096652A (en) * | 2020-09-02 | 2020-12-18 | 航天科工火箭技术有限公司 | Liquid disengaging type dynamic sealing device |
| CN112096652B (en) * | 2020-09-02 | 2024-05-03 | 航天科工火箭技术有限公司 | Liquid-release dynamic sealing device |
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Application publication date: 20160406 |