CN201031813Y - Spring mechanical sealing member with helical burr pump effect - Google Patents
Spring mechanical sealing member with helical burr pump effect Download PDFInfo
- Publication number
- CN201031813Y CN201031813Y CNU2007201087027U CN200720108702U CN201031813Y CN 201031813 Y CN201031813 Y CN 201031813Y CN U2007201087027 U CNU2007201087027 U CN U2007201087027U CN 200720108702 U CN200720108702 U CN 200720108702U CN 201031813 Y CN201031813 Y CN 201031813Y
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- CN
- China
- Prior art keywords
- pump
- spring
- thread
- spring seat
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to the mechanical sealing member of a spring with a thread pump effect and is designed to eliminate some deficiency of the similar products. The design point is that a pump body is in clearance connection with the external thread arranged on the spring seat. The sealing principle of the thread pump is that a pump shaft generates pressure in the clearance between the pump body and the external thread and presses a medium to motion in the spin direction of the thread so that the thread pump effect is achieved. So the pump is called a screw pump. Because of the thread pump effect, the sealing member needs no extra pressure source and the cooling medium can automatically circulate. One face of the spring seat is connected with the pump shaft by a fastening bolt, a symmetrical boss at two sides of the spring seat and a symmetrical groove at two sides of a rotating ring mates and are symmetrically arranged, and a spring is arranged in the groove. The utility model solves the technical problems of a bad sealing performance and a short service life caused by the ununiform dynamic force and torque transmission of the pump shaft and is suitable to be mated with sealing members of other liquid pumps.
Description
Technical field
The utility model relates to a kind of power station, Iron And Steel Plant, petroleum chemical enterprise of being used for, and carries the equipment Sealing of super-heated liquid.
Background technique
Mechanical sealing element is one of vitals of pump class, plays and carries various liquid to stop the effect of leaking.The Sealing that has is carrying super-heated liquid generally to adopt pressure reduction principle natural circulation, promptly enters Seal cage by the fairlead of pump discharge end and is back in the pump housing, solves the cooling and the sealing problem of pump with this.Because the restriction circulation cooling effect of pressure reduction is undesirable.Common Sealing is that an easily damaged parts has been broken, and must remove other part of connection, could change the part that this changes, and it is not too convenient to install and remove, keep in repair, overhaul.This phenomenon is to have increased workload and labor intensity to them to miantainers.The performance of conventional machinery Sealing sealing reason bad and that owe working life long is, can not adapt to the dynamic stress of pump shaft, the service condition of transmitting torque inequality, and not do corresponding dynamic and static stressed adjusting, satisfies its operating conditions.
Summary of the invention
The utility model will overcome above-mentioned deficiency, and purpose is to provide a kind of structure spring mechanical seal that comparatively simple threaded pump efficiency is answered to related domain.Make its dynamic stress that can solve pump shaft, transmitting torque inequality, the sealability that is caused bad and working life is owed long technical problem.The purpose of this utility model is to adopt following technological scheme to realize.
The spring mechanical seal that a kind of threaded pump efficiency is answered, the sealing part is used for the sealing of hot water pump, comprise seal end plate, driving pin, stationary ring O shape circle, stationary ring, rotating ring, rotating ring O shape circle, rotating seat, throw-out collar, spring, spring seat, clamping bolt, pump shaft, the pump housing, its main points are that the pump housing is connected with the outside thread gap that spring seat is provided with, the sealing principle of helical pump is that the pump shaft of high speed rotating produces pressure in the pump housing and externally threaded gap, extrusion medium is moved along the direction of thread rotary orientation, and the effect of realization helical pump, so be called volute pump.In Sealing,, save other boost pressure source, make the cooling medium automatic cycle because of this effect is arranged.The one side of spring seat connects pump shaft by clamping bolt, and the groove on the boss on spring seat both sides and rotating ring both sides is symmetrical arranged, inserting spring in the groove, spring at least six groups.The spring seat both sides are provided with symmetrical boss, the setting (not seeing among Fig. 1 that groove, boss only distribute on both diametric planes at this) that is complementary of the groove of this boss and rotating ring both sides symmetry.End face at seal end plate is provided with driving pin, to stop the axial activity of stationary ring.
This mechanical sealing element individual part needs to change, and then only needs whole Sealing split out pump shaft, can operate on worktable.Create bigger operating platform, working environment preferably to the maintenance man.Solved dynamic stress, the transmitting torque inequality of pump shaft, the sealability that is caused bad and working life is owed long technical problem.Also be suitable for the supporting use of Sealing of other liquid pump.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is spring seat of the present utility model, rotating ring, stationary ring, the profile schematic representation.
Sequence number and title among the figure: 1, seal end plate, 2, driving pin, 3, stationary ring O shape circle, 4, stationary ring, 5, rotating ring, 6, rotating ring O shape circle, 7, throw-out collar, 8, spring, 9, spring seat, 10, clamping bolt, 11, pump shaft, 12, cooling hole, 13, the pump housing.
Embodiment
Mode of execution is installed, dismantled, reaches working principle with the utility model is example.An end that needs only during installation spring seat 9 screws in pump shaft 11, and certain point location along pump shaft to the pump housing 13 is fixed on the pump shaft by clamping bolt 10, and pump shaft 11 is connected as a single entity with the pump housing.Unscrew set screw 10 during dismounting, spring seat screws out pump shaft 11, and whole Sealing just " has removed ".
Sealing principle: seal end plate 1 side is provided with two cooling hole 12, one, water inlet, the 2nd, osculum respectively.Screw thread delivery side of pump water pipe connecting is connected with the water inlet of seal end plate 1, and the osculum of seal end plate 1 is connected with the helical pump intake pipe.Sealing fluid is to draw from the screw thread delivery side of pump, and the process cooling vent enters the water inlet of seal end plate 1, and sealing fluid plays the effect of sealing with the spring seat 9 that communicates in seal end plate 1, releases the intake pipe formation sealing of getting back to helical pump by helical pump again and circulates.
Claims (1)
1. spring mechanical seal that threaded pump efficiency is answered, the sealing part comprises seal end plate, driving pin, stationary ring O shape circle, stationary ring, rotating ring, rotating ring O shape circle, rotating seat, throw-out collar, spring, spring seat, clamping bolt, pump shaft, the pump housing, it is characterized in that the pump housing (13) is connected with the outside thread gap that spring seat (9) is provided with; The one side of spring seat (9) connects pump shaft (11) by clamping bolt (10), the groove on the boss on spring seat (9) both sides and rotating ring (5) both sides is symmetrical arranged, inserting spring in the groove (8), the spring seat both sides are provided with symmetrical boss, the setting that is complementary of the groove of this boss and rotating ring both sides symmetry; End face at seal end plate (1) is provided with driving pin (2); The seal end plate side is provided with two cooling hole (12) respectively, and the one, the water inlet, the 2nd, osculum, the delivery side of pump water pipe connecting is connected with the water inlet of seal end plate, and the osculum of seal end plate is connected with the pump water inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201087027U CN201031813Y (en) | 2007-04-26 | 2007-04-26 | Spring mechanical sealing member with helical burr pump effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201087027U CN201031813Y (en) | 2007-04-26 | 2007-04-26 | Spring mechanical sealing member with helical burr pump effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201031813Y true CN201031813Y (en) | 2008-03-05 |
Family
ID=39163705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201087027U Expired - Fee Related CN201031813Y (en) | 2007-04-26 | 2007-04-26 | Spring mechanical sealing member with helical burr pump effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201031813Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606743A (en) * | 2012-03-28 | 2012-07-25 | 大连华阳光大密封有限公司 | O-ring anti-extrusion structure |
| CN103195741A (en) * | 2013-04-07 | 2013-07-10 | 宁波天工机械密封有限公司 | Packaging type mechanical seal for chemical engineering process pump |
| CN114017489A (en) * | 2021-12-01 | 2022-02-08 | 胡滨 | Application of dynamic pressure spiral groove sealing surface mechanical seal in vacuum pump |
-
2007
- 2007-04-26 CN CNU2007201087027U patent/CN201031813Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606743A (en) * | 2012-03-28 | 2012-07-25 | 大连华阳光大密封有限公司 | O-ring anti-extrusion structure |
| CN103195741A (en) * | 2013-04-07 | 2013-07-10 | 宁波天工机械密封有限公司 | Packaging type mechanical seal for chemical engineering process pump |
| CN103195741B (en) * | 2013-04-07 | 2016-08-17 | 宁波天工机械密封有限公司 | Packaging type mechanical seal for a chemical engineering process pump |
| CN114017489A (en) * | 2021-12-01 | 2022-02-08 | 胡滨 | Application of dynamic pressure spiral groove sealing surface mechanical seal in vacuum pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080305 |