CN1693716A - Pump shaft sealing cavity - Google Patents
Pump shaft sealing cavity Download PDFInfo
- Publication number
- CN1693716A CN1693716A CN 200510018543 CN200510018543A CN1693716A CN 1693716 A CN1693716 A CN 1693716A CN 200510018543 CN200510018543 CN 200510018543 CN 200510018543 A CN200510018543 A CN 200510018543A CN 1693716 A CN1693716 A CN 1693716A
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- mechanical seal
- ring
- cooling water
- sleeve
- pump shaft
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- Mechanical Sealing (AREA)
Abstract
The invention relates to a pump shaft sealed cavity that includes pump cover, pump shaft, mechanical seal and sealing-compacting device for compacting mechanical seal. The mechanical seal includes mechanical seal active ring, mechanical seal static ring, which are approached tightly and would form working fit. The contact surface between the active ring and the static ring is mechanical seal fit surface. A cooling water supplying pass through pipe is set in the pump shaft sealed cavity that is a flexural pipe and flows through mechanical seal fit surface. The entrance and the exit of the pipe is far away from the fit surface. The benefit effects of the invention is that: first, it could effectively cooling the mechanical seal fit surface; second, it effectively prolongs the using life of the mechanical seal; third, it is very fit for running in the working environment of high temperature, toxic, and continuously running.
Description
Technical field
The present invention relates to a kind of new pump shaft seal cavity.
Background technique
Mechanical seal break-in face in the work, because of rapid seating produces heat of high temperature, must use cooling water that mechanical seal break-in face is cooled off, the IH type chemical pump that prior art relates to or other chemical centrifugal pump shaft seal cavity, as shown in Figure 1, its cooling water circulation all is away from mechanical seal break-in face, its cooling water turnover of the cooling of this form is on same cross section, cause easily the cooling water of feeding with heated cooling water mixed cycle, perhaps coldly advance, the cold discharging modes that go out, cooling effect is difficult to reach requirement, and the mechanical seal of axle envelope place's assembling, because of high speed operation, break-in face is because of wearing away the loosening gap that produces, and the liquid that the pump housing takes place is revealed.
Summary of the invention
Problem to be solved by this invention is to propose a kind of new pump shaft seal cavity that can cool off mechanical seal break-in face effectively at above-mentioned prior art.
The present invention is adopted solution to be by the problem of the above-mentioned proposition of solution: a kind of new pump shaft seal cavity, comprise pump cover 1, pump shaft 15, mechanical seal and be used to compress the sealing hold down gag of mechanical seal, described mechanical seal comprises mechanical sealing linkage ring 5, mechanical sealing static ring 2, mechanical sealing linkage ring and mechanical sealing static ring closely are abutted against and form movingly, surface of contact between mechanical sealing linkage ring and the mechanical sealing static ring is a mechanical seal break-in face 3, its difference is, also be provided with a passage that supplies cooling water to walk in the described pump shaft sealing cavity, described passage is a kind of bent paths, this song paths mechanical seal break-in face of flowing through, and the import and export of this passage are away from mechanical seal break-in face.
The cooling water that one bent road formula is set in pump shaft sealing cavity is walked passage, and makes this passage pass mechanical seal break-in face, so just can make cooling water directly flow through mechanical seal break-in face, so its good cooling results.
Described bent paths is made up of sleeve 13 that is sleeved on the mechanical seal periphery and cooling water spacer ring 4, described sleeve set is in the periphery of cooling water spacer ring, described cooling water spacer ring is separated into two radially separate cavitys with the inner chamber of sleeve, transport out of at described sleeve mechanical seal break-in face an end be provided with water intake 11 and water outlet 10, water intake on the described sleeve and water outlet are connected with different cavitys on the sleeve respectively, also be provided with water inlet 12 and osculum 6 on the described cooling water spacer ring, water inlet on the cooling water spacer ring is arranged on that end near mechanical seal break-in face, osculum on the cooling water spacer ring is arranged on an end that transports out of mechanical seal break-in face, water inlet correspondence on the cooling water spacer ring is arranged at that cavity with water intake of sleeve, then corresponding that cavity with water outlet that is arranged at sleeve of osculum.
Described cooling water spacer ring is made up of two semiorbicular ring bodies, and described ring bodies junction plane place is provided with the projection 16 that extends radially outward, and the outer circumferential face of projection is that tightness cooperates with the inner peripheral surface of sleeve.
Further improvement of the present invention is, but the axle envelope hold down gag that described sealing hold down gag is a kind of axial adjustment, axle envelope hold down gag comprises axle envelope compression nut 9, axle envelope regulating ring 8, described axle envelope regulating ring one end closely is abutted against with axle envelope compression nut and forms movingly, and the axle envelope regulating ring the other end and mechanical sealing linkage ring closely are abutted against and form movingly.
The design of new pump shaft seal cavity; the forced cooling function that improves mechanical seal has been carried out unified the combination with the compression compensation ability that strengthens mechanical seal; be fit to very much high temperature, poisonous, the continuous working environment that turns round of needs; not only made things convenient for the workman in the on-the-spot practical operation of pump running; solved mechanical seal especially because of leak of liquid; tear pump open and require to shut down, shrink a difficult problem that compresses mechanical seal break-in face again.
Beneficial effect of the present invention is:
1) the new pump shaft seal cavity is in the use under the identical working condition or at toxic liquid or very easily use under the working condition of befouling environment, and it can cool off mechanical seal break-in face effectively, can substitute the shaft seal cavity of IH type chemical pump or other chemical centrifugal pump.
2) because a large amount of cooling waters contact for the first time, towards the heat of dipping machine tool sealing break-in face, so can protect mechanical seal safety, high-efficient operation in cold water, low temperature all the time, effectively prolonged the working life of mechanical seal.
3) the new pump shaft seal cavity has increased axle envelope compression set; solved mechanical seal break-in face because of leakage liquid; tear pump open and shrink a difficult problem that compresses mechanical seal and require to shut down, extremely be fit to high temperature, poisonous, the working condition of running continuously, optimize environment for human survival.
Description of drawings
Fig. 1 is the sectional structure chart of the pump shaft sealing cavity of prior art;
Fig. 2 is the sectional structure schematic representation of most preferred embodiment of the present invention;
Fig. 3 be Fig. 2 along E-E to sectional view;
Fig. 4 is sleeve and cooling water spacer ring assembling schematic representation.
Embodiment
The invention will be further described below by embodiment, but the present invention is not limited only to this.
As Fig. 1, Fig. 2 and shown in Figure 3, the new pump shaft seal cavity comprises pump cover 1, pump shaft 15, mechanical seal, the sealing hold down gag that is used to compress mechanical seal, axle sleeve 7 and the passage of walking for cool but water.Described mechanical seal comprises mechanical sealing linkage ring 5, mechanical sealing static ring 2, and mechanical sealing linkage ring and mechanical sealing static ring closely are abutted against and form movingly, and the surface of contact between mechanical sealing linkage ring and the mechanical sealing static ring is a mechanical seal break-in face 3.Described bent paths is made up of sleeve 13 that is sleeved on the mechanical seal periphery and cooling water spacer ring 4, described sleeve set is in the periphery of cooling water spacer ring, the cooling water spacer ring is separated into two separate cavitys of radially arranging with the inner chamber of sleeve, the same section that described sleeve transports out of an end of mechanical seal break-in face is provided with orthogonal water intake 11 and water outlet 10, and this water intake and water outlet communicate with different cavitys in the sleeve respectively.Described cooling water spacer ring is made up of two semiorbicular ring bodies, described ring bodies junction plane place is provided with the projection 16 that extends radially outward, the outer circumferential face of projection is that tightness cooperates with the inner peripheral surface of sleeve, described cooling water spacer ring is provided with water inlet 12 and osculum 6, cooling water spacer ring water inlet is arranged on that end near mechanical seal break-in face, cooling water spacer ring osculum is arranged on an end that transports out of mechanical seal break-in face, water inlet correspondence on the cooling water spacer ring is arranged at that cavity with water intake of sleeve, then corresponding that cavity with water outlet that is arranged at sleeve of osculum.But the axle envelope hold down gag that described sealing hold down gag is a kind of axial adjustment, axle envelope hold down gag comprises axle envelope compression nut 9, axle envelope regulating ring 8, described axle envelope regulating ring one end closely is abutted against with axle envelope compression nut and forms movingly, and the axle envelope regulating ring the other end and mechanical sealing linkage ring closely are abutted against and form movingly.
Mechanical seal forced the working method cooled off:---cooling water spacer ring water inlet (cooling water enters cooling water spacer ring water inlet by the passage between sleeve and the cooling water spacer ring)---mechanical seal break-in face---cooling water spacer ring osculum---sleeve water outlet---suspension body cooling chamber 14---high-temperature water outlet hole 17 by the sleeve water intake.
In the practice, before the pump startup, connect cooling water earlier, cooling water is by the straight-through water intake of outer water tube, by the passage between sleeve and the cooling water spacer ring, enter the spacer ring water inlet that is arranged on the cooling water spacer ring, cooling water spacer ring in the sleeve in the new pump shaft seal cavity is two semi-circular synthetic circles, two semiorbicular effects are that the cooling water spacer ring is separated into coldly to advance, two passages that heat goes out, can force to limit the single file circuit of the interior cooling water of pump shaft sealing cavity along regulation, directly flow to mechanical seal break-in face, the mechanical seal break-in face in the pump shaft sealing cavity is forced cooling, and from top to bottom towards the running break-in heat of dipping machine tool sealing part.Several multiplications of cooling water area of passing through because of mechanical seal break-in face place are big, so cooling water capacity increases; And hot water and cold water are separated isolation in the pump shaft sealing cavity, take their own roads up and down, do not disturb mutually.Cooling water is externally under the effect of pressure, gush out in the water hole by cooling water spacer ring constant bearing, directly behind dipping machine tool sealing break-in face, the high-temperature-hot-water at pump shaft envelope place is discharged by force, so pump is under super boiling regime condition, the mechanical seal break-in of also in cold water, low temperature, turning round, proper functioning.In addition because a large amount of cooling waters contact for the first time, towards the heat of dipping machine tool sealing break-in face, so can protect mechanical seal safety, high-efficient operation in cold water, low temperature all the time, effectively prolonged the working life of mechanical seal.Cooling water is after the sealing of dipping machine tool, by being arranged on the spacer ring osculum of cooling water spacer ring, through the sleeve water outlet, enter suspension body cooling chamber, discharge by the high-temperature water outlet hole again, cooling water enters the suspension body cooling chamber of sealing, can stop the heat shaft seal cavity transmission rearwards of carrying high-temp liquid in the pump housing.
Mechanical seal quick adjustment working method: axle sleeve---axle envelope compression nut---axle envelope regulating ring---mechanical seal---mechanical sealing linkage ring---mechanical seal break-in face---mechanical sealing static ring.
After the axle envelope compression nut rotation on the axle sleeve, the interior axle envelope regulating ring of the shaft seal cavity of driving pump forward that pitch is arranged, axle envelope regulating ring promotes mechanical seal again, the rotating ring of mechanical seal is adjacent to stationary ring forward, reaching the purpose of quick adjustment because of the loosening mechanical seal break-in face of abrasion, is a kind of spinning mode of passing through outside pump shaft sealing cavity, allows because of the loosening mechanical seal break-in face of abrasion, again rotate break-in, effectively solve a kind of Compensation Regulation structure of mechanical seal leakage liquid in the pump shaft sealing cavity.
Described quick adjustment mechanical seal, directly outside pump shaft sealing cavity, adopt manual operations, by external pressure axle envelope compression nut is carried out spinning, and the interior axle envelope of the driving pump shaft seal cavity that pitch is arranged regulating ring, an axle envelope regulating ring compresses mechanical seal break-in face forward and reaches the order ground that assurance carries liquid not leak.
Claims (4)
1. pump shaft sealing cavity, comprise pump cover (1), pump shaft (15), mechanical seal and be used to compress the sealing hold down gag of mechanical seal, described mechanical seal comprises mechanical sealing linkage ring (5), mechanical sealing static ring (2), mechanical sealing linkage ring and mechanical sealing static ring closely are abutted against and form movingly, surface of contact between mechanical sealing linkage ring and the mechanical sealing static ring is mechanical seal break-in face (3), it is characterized in that, also be provided with a passage that supplies cooling water to walk in the described pump shaft sealing cavity, described passage is a kind of bent paths, this song paths mechanical seal break-in face of flowing through, and the import and export of this passage are away from mechanical seal break-in face.
2. by the described pump shaft sealing cavity of claim 1, it is characterized in that described bent paths is made up of sleeve that is sleeved on the mechanical seal periphery (13) and cooling water spacer ring (4), described sleeve set is in the periphery of cooling water spacer ring, described cooling water spacer ring is separated into two radially separate cavitys with the inner chamber of sleeve, transport out of at described sleeve mechanical seal break-in face an end be provided with water intake (11) and water outlet (10), water intake on the described sleeve and water outlet are connected with different cavitys on the sleeve respectively, also be provided with water inlet (12) and osculum (6) on the described cooling water spacer ring, water inlet on the cooling water spacer ring is arranged on that end near mechanical seal break-in face, osculum on the cooling water spacer ring is arranged on an end that transports out of mechanical seal break-in face, water inlet correspondence on the cooling water spacer ring is arranged at that cavity with water intake of sleeve, then corresponding that cavity with water outlet that is arranged at sleeve of osculum.
3. by the described pump shaft sealing cavity of claim 2, it is characterized in that described cooling water spacer ring is made up of two semiorbicular ring bodies, described ring bodies junction plane place is provided with the projection (16) that extends radially outward, and the outer circumferential face of projection is that tightness cooperates with the inner peripheral surface of sleeve.
4. by claim 1 or 2 or 3 described pump shaft sealing cavities, but it is characterized in that the axle envelope hold down gag that described sealing hold down gag is a kind of axial adjustment, axle envelope hold down gag comprises axle envelope compression nut (9), axle envelope regulating ring (8), described axle envelope regulating ring one end closely is abutted against with axle envelope compression nut and forms movingly, and the axle envelope regulating ring the other end and mechanical sealing linkage ring closely are abutted against and form movingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510018543 CN1693716A (en) | 2005-04-13 | 2005-04-13 | Pump shaft sealing cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510018543 CN1693716A (en) | 2005-04-13 | 2005-04-13 | Pump shaft sealing cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1693716A true CN1693716A (en) | 2005-11-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510018543 Pending CN1693716A (en) | 2005-04-13 | 2005-04-13 | Pump shaft sealing cavity |
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| Country | Link |
|---|---|
| CN (1) | CN1693716A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927057A (en) * | 2012-11-29 | 2013-02-13 | 无锡艾比德泵业有限公司 | Cooling structure of mechanical seal of centrifugal pump |
| CN104806574A (en) * | 2014-10-17 | 2015-07-29 | 邢宇 | Cooling liquid or heating liquid circulating system for cantilever type centrifugal pump |
| CN105422502A (en) * | 2015-12-18 | 2016-03-23 | 李良荣 | Intelligent sanitary pump |
| CN107664124A (en) * | 2016-07-31 | 2018-02-06 | 江苏科曼机械制造有限公司 | A kind of single-stage single-suction horizontal petrochemical process pump |
| CN117072450A (en) * | 2023-10-17 | 2023-11-17 | 江苏翰纳泵业有限公司 | High-performance centrifugal pump |
-
2005
- 2005-04-13 CN CN 200510018543 patent/CN1693716A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927057A (en) * | 2012-11-29 | 2013-02-13 | 无锡艾比德泵业有限公司 | Cooling structure of mechanical seal of centrifugal pump |
| CN104806574A (en) * | 2014-10-17 | 2015-07-29 | 邢宇 | Cooling liquid or heating liquid circulating system for cantilever type centrifugal pump |
| CN104806574B (en) * | 2014-10-17 | 2018-01-09 | 邢宇 | The coolant or heating fluid circulation of a kind of cantilever centrifugal pump |
| CN105422502A (en) * | 2015-12-18 | 2016-03-23 | 李良荣 | Intelligent sanitary pump |
| CN107664124A (en) * | 2016-07-31 | 2018-02-06 | 江苏科曼机械制造有限公司 | A kind of single-stage single-suction horizontal petrochemical process pump |
| CN117072450A (en) * | 2023-10-17 | 2023-11-17 | 江苏翰纳泵业有限公司 | High-performance centrifugal pump |
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