CN101158361A - Phosphoric acid axial-flow pump dry gas sealing device - Google Patents
Phosphoric acid axial-flow pump dry gas sealing device Download PDFInfo
- Publication number
- CN101158361A CN101158361A CNA2007100779595A CN200710077959A CN101158361A CN 101158361 A CN101158361 A CN 101158361A CN A2007100779595 A CNA2007100779595 A CN A2007100779595A CN 200710077959 A CN200710077959 A CN 200710077959A CN 101158361 A CN101158361 A CN 101158361A
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- ring
- connecting bolt
- phosphoric acid
- dry gas
- sealing
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Abstract
The invention discloses a phosphoric acid bearing pump dry gas sealing device, comprising a dual-end sealing friction pair, a spring, a press plate component and a connecting bolt. The invention is characterized in that a gas sealing trough (19) is chiseled on a static ring; the rotation direction of a trough clearance (20) complies with the rotation direction of the pump. The dual-end sealing friction pair consists of a drive ring (3), a movable ring A(9), a fixed ring A(8), a movable ring B(17) and a fixed ring B(18); the fixed ring A(8) is fixed on the drive ring (3); an O-shaped sealing ring (5) is arranged between the fixed ring B(18) and the press plate component (14); the press plate component (14) is connected by a connecting bolt A(12) and a connecting bolt B(15); two ends of a spring (16) are connected with the movable ring A(9) and the movable ring B(17); an air outlet (2) and an air inlet (4) are both arranged on the press plate component (14). The invention has the advantages of long service life, simple troubleshooting, energy saving and consumption reduction, and low operation expense, without water entering the concentration system.
Description
Technical field
The present invention relates to a kind of seal arrangement, relate in particular to a kind of seal arrangement of phosphoric acid axial-flow pump.
Background technique
The sealing means that phosphoric acid axial flow recycle pump shaft envelope adopts at present both at home and abroad is mechanical seal and packing seal, and logical sealing liquid has plugging action to medium in the double mechanical seal, can accomplish the zero leakage of medium to atmosphere, but a small amount of sealing liquid medium that bleeds, pollution medium are arranged.Atmospheric side mechanical seal has a small amount of sealing liquid to leak, and site environment is brought certain pollution.Need a cover sealing liquid circulating cooling system.Maintenance is big: the operation easier to system strengthens, and there is the sealing alignment error in the maintenance difficulties increase to the scene.Owing to be sealed into contact seal, end face certainly exists friction and wear, and working life is shorter.Operating cost is higher simultaneously.These two kinds of sealing means are short working life in a word, and sealing water enters concentrated medium, causes system energy consumption to increase.
Dry gas seals is widely used in petroleum chemical industry at present, is mainly used on compressor, oil pump, the inflammable and explosive medium centrifugal pump, and this kind equipment rotating speed is higher, the slow-revving axle envelope that is used for reactor etc.Be used for centrifugal pumps such as oil, hydro carbons, alkanes, ammonia, liquefied ammonia, waste water, waste oil as Qilu Petrochemical, Yanshan Petrochemical etc., compressor.Existing dry gas seals sealing gland cutting is little by outer thoughtful interior transition, and deflection angle radially is big, is mainly used in high-revolving compressor and centrifugal pump, the Applicable media solid content is low, and shortcoming is rotating speed when low, the air film instability, medium easily enters sealing surface, when the medium solid content is high, and easy break-down.
Summary of the invention
The objective of the invention is to overcome above-mentioned shortcoming and a kind of long service life is provided, repair and maintenance is simple, does not have water to enter concentration systems, and is energy-saving and cost-reducing, the phosphoric acid axial-flow pump dry gas sealing device that operating cost is low.
Phosphoric acid axial-flow pump dry gas sealing device of the present invention comprises both-end sealing friction pair, spring, Anchor plate kit, connecting bolt, and wherein: the sealing gland groove is engraved on the stationary ring, and groove crack rotation direction turns to consistent with pump.The assurance air film forms, and sealing gland could proper functioning.
The both-end sealing friction pair is by driving ring, by rotating ring A, stationary ring A, rotating ring B, stationary ring B form, stationary ring A is fixed on the driving ring, be provided with RunddichtringO between stationary ring B and the Anchor plate kit, Anchor plate kit is linked to each other by connecting bolt A, connecting bolt B, both ends of the spring joins with rotating ring A, rotating ring B, and relief opening and suction port are all opened on Anchor plate kit.
The present invention compared with prior art has tangible advantage and effect.By above technological scheme as can be known, the special groove crack of opening structure on two pairs of friction inner loops that are in contact with one another, cut-in pressure is greater than the pressurized air of pump pressure medium, before the startup, by spring pressure friction pair is fitted, and open pressurized air earlier and guarantee groove crack on not engaging friction of the medium inner loop, with medium-tight, forming air film behind the pump startup between the friction pair, air film is lived medium-tight.Because friction pair do not contact in the pump operation process, not wear and tear, sealing is by greater than the finishing of pressure medium, and just in start-stop car moment, friction pair comes in contact friction, so long service life can be used more than 2 years at least; Dry gas seals is moved the back only needs the compressed-air actuated pressure of online observation to be not less than required pressure, has or not dielectric leakage; Because this sealing gland is the external integral type of the pump housing, disassembling, assembling and replacing is very convenient; Sealing gland adopts gas film sealing, does not have water to enter medium, reduce to concentrate steam consumption, and sealing surface is not in contact with one another, and surface friction drag is little, and power of motor consumption is few, and is energy-saving and cost-reducing, and the pressurized air consumption is little, and operating cost is low.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of A to stationary ring;
Fig. 3 is the structural representation of B to stationary ring;
Fig. 4 is the assembling relationship figure of the present invention and pump.
Mark among the figure:
1, gland, 2, relief opening, 3, driving ring, 4, suction port, 5, O RunddichtringO, 6, clamping bolt, 7, axle sleeve, 8, stationary ring A, 9, rotating ring A, 10, axle sleeve O RunddichtringO, 11, stud bolt, 12, connecting bolt A, 13, nut, 14, Anchor plate kit, 15, connecting bolt B, 16, spring, 17, rotating ring B, 18, stationary ring B, 19, the sealing gland groove, 20, the groove crack.
Mode of execution
Phosphoric acid axial-flow pump dry gas sealing device comprises both-end sealing friction pair, spring 16, Anchor plate kit 14, connecting bolt, and wherein: sealing gland groove 19 is engraved on the stationary ring, and groove crack 20 rotation directions turn to consistent with pump.The assurance air film forms, and sealing gland could proper functioning.
The both-end sealing friction pair is by driving ring 3, by rotating ring A9, stationary ring A8, rotating ring B17, stationary ring B18 form, stationary ring A8 is fixed on the driving ring 3, be provided with O RunddichtringO 5 between stationary ring B18 and the Anchor plate kit 14, Anchor plate kit 14 is linked to each other by connecting bolt A12, connecting bolt B15, spring 16 two ends join with rotating ring A9, rotating ring B17, and relief opening 2 and suction port 4 are all opened on Anchor plate kit 14.
During use: stationary ring A8, stationary ring B18 and Anchor plate kit 14 are fixed on the pump casing gland 1 by stud bolt 11 and nut 13, rotating ring A9, rotating ring B1 are fixed on the pump shaft cover 7 by clamping bolt 6 by Anchor plate kit 14, be provided with axle sleeve O RunddichtringO 10 between Anchor plate kit 14 and the axle sleeve 7, axle sleeve 7 is fixed on the pump shaft.
Claims (2)
1. a phosphoric acid axial-flow pump dry gas sealing device comprises both-end sealing friction pair, spring, Anchor plate kit and connecting bolt, it is characterized in that: sealing gland groove (19) is engraved on the stationary ring, and groove crack (20) rotation direction turns to consistent with pump.
2. phosphoric acid axial-flow pump dry gas sealing device according to claim 1, it is characterized in that: the both-end sealing friction pair is by driving ring (3), by rotating ring A (9), stationary ring A (8), rotating ring B (17), stationary ring B (18) form, stationary ring A (8) is fixed on the driving ring (3), be provided with O RunddichtringO (5) between stationary ring B (18) and the Anchor plate kit (14), Anchor plate kit (14) is linked to each other by connecting bolt A (12), connecting bolt B (15), spring (16) two ends join with rotating ring A (9), rotating ring B (17), and relief opening (2) and suction port (4) are all opened on Anchor plate kit (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100779595A CN101158361A (en) | 2007-09-28 | 2007-09-28 | Phosphoric acid axial-flow pump dry gas sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100779595A CN101158361A (en) | 2007-09-28 | 2007-09-28 | Phosphoric acid axial-flow pump dry gas sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101158361A true CN101158361A (en) | 2008-04-09 |
Family
ID=39306560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100779595A Pending CN101158361A (en) | 2007-09-28 | 2007-09-28 | Phosphoric acid axial-flow pump dry gas sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101158361A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454626A (en) * | 2010-10-21 | 2012-05-16 | 株式会社神户制钢所 | Compressor |
| CN103486045A (en) * | 2013-10-16 | 2014-01-01 | 宁波爱发科真空技术有限公司 | Lubricating structure for mechanical seal of Roots pump |
| CN104806766A (en) * | 2015-02-14 | 2015-07-29 | 合肥誉联信息科技有限公司 | Cartridge mechanical seal for high-temperature dilute sulfuric acid |
| CN106609846A (en) * | 2015-10-22 | 2017-05-03 | 浙江海峰制鞋设备有限公司 | Behind-pump sealing device |
| CN106762801A (en) * | 2016-12-29 | 2017-05-31 | 宜都兴发化工有限公司 | A kind of axial-flow pump dry gas sealing system |
| CN108692031A (en) * | 2018-06-01 | 2018-10-23 | 大连久泰密封有限公司 | A kind of friction pair of dry gas seals |
| CN109695719A (en) * | 2019-02-15 | 2019-04-30 | 山东新华医疗器械股份有限公司 | A kind of pharmaceutical purpose high velocity vapor shaft sealer |
| CN111868423A (en) * | 2018-04-03 | 2020-10-30 | 伊格尔工业股份有限公司 | Mechanical seal |
| CN113996216A (en) * | 2021-12-31 | 2022-02-01 | 浙江汉信科技有限公司 | Dispersion machine with airtight structure |
-
2007
- 2007-09-28 CN CNA2007100779595A patent/CN101158361A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454626A (en) * | 2010-10-21 | 2012-05-16 | 株式会社神户制钢所 | Compressor |
| CN102454626B (en) * | 2010-10-21 | 2015-08-26 | 株式会社神户制钢所 | Compressor |
| CN103486045A (en) * | 2013-10-16 | 2014-01-01 | 宁波爱发科真空技术有限公司 | Lubricating structure for mechanical seal of Roots pump |
| CN103486045B (en) * | 2013-10-16 | 2016-04-13 | 宁波爱发科真空技术有限公司 | The lubricating structure of Roots pump mechanical seal |
| CN104806766A (en) * | 2015-02-14 | 2015-07-29 | 合肥誉联信息科技有限公司 | Cartridge mechanical seal for high-temperature dilute sulfuric acid |
| CN106609846A (en) * | 2015-10-22 | 2017-05-03 | 浙江海峰制鞋设备有限公司 | Behind-pump sealing device |
| CN106762801A (en) * | 2016-12-29 | 2017-05-31 | 宜都兴发化工有限公司 | A kind of axial-flow pump dry gas sealing system |
| CN111868423A (en) * | 2018-04-03 | 2020-10-30 | 伊格尔工业股份有限公司 | Mechanical seal |
| US11802623B2 (en) | 2018-04-03 | 2023-10-31 | Eagle Industry Co., Ltd. | Mechanical seal |
| US11815183B2 (en) | 2018-04-03 | 2023-11-14 | Eagle Industry Co., Ltd. | Mechanical seal |
| CN108692031A (en) * | 2018-06-01 | 2018-10-23 | 大连久泰密封有限公司 | A kind of friction pair of dry gas seals |
| CN109695719A (en) * | 2019-02-15 | 2019-04-30 | 山东新华医疗器械股份有限公司 | A kind of pharmaceutical purpose high velocity vapor shaft sealer |
| CN113996216A (en) * | 2021-12-31 | 2022-02-01 | 浙江汉信科技有限公司 | Dispersion machine with airtight structure |
| CN113996216B (en) * | 2021-12-31 | 2022-08-12 | 浙江汉信科技有限公司 | Dispersion machine with airtight structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080409 |