CN106246591A - Food apparatus mechanical seal - Google Patents
Food apparatus mechanical seal Download PDFInfo
- Publication number
- CN106246591A CN106246591A CN201610782579.0A CN201610782579A CN106246591A CN 106246591 A CN106246591 A CN 106246591A CN 201610782579 A CN201610782579 A CN 201610782579A CN 106246591 A CN106246591 A CN 106246591A
- Authority
- CN
- China
- Prior art keywords
- ring
- seal
- media
- pump shaft
- stationary ring
- 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
Links
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
- F04D29/122—Shaft sealings using sealing-rings especially adapted for elastic fluid pumps
-
- 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
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3464—Mounting of the seal
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
Abstract
A kind of food apparatus mechanical seal, it is characterised in that: including: atmosphere end rotating ring, its sealing is tightly packed on pump shaft；Stationary ring, its gap is linked on pump shaft and forms end face seal with atmosphere end rotating ring and coordinates；Media end rotating seat, it is tightly placed on pump shaft；Media end rotating ring, its sealing is packed in media end rotating seat；Media end stationary ring, its gap is linked on pump shaft and forms end face seal with media end rotating ring and coordinates；Spring, its gap is linked on pump shaft and two ends are respectively tight against stationary ring end and media end stationary ring end；Seal receptacle, for inner seal sleeve dress stationary ring and media end stationary ring；Described seal receptacle is provided with bath duct, and described bath duct connects with atmosphere end dynamic and static ring end face seal chamber, media end dynamic and static ring end face seal chamber.This food apparatus mechanical seal is not only concise in structure, and has the most again the reliable advantage of sealing.
Description
Technical field
The present invention relates to food apparatus technical field of mechanical, specifically refer to a kind of food apparatus mechanical seal.
Background technology
For the mechanical seal at food apparatus pump shaft, need in view of high temperature, high pressure special operation condition with
And media end is the particular matter that this viscosity of food is bigger, thus food apparatus mechanical seal to be different from general machinery close
Envelope.
And the structure of common food apparatus mechanical seal or employing mechanical single seal realizes, or use structure multiple
Miscellaneous double seals structure realizes, and simple for structure, seal reliably double seals structure and be then always in industry
The target that technical staff pursues.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of food apparatus mechanical seal, this food apparatus machinery
Sealing is not only concise in structure, and has the most again the reliable advantage of sealing.
The technical solution of the present invention is to provide a kind of food apparatus mechanical seal, including: atmosphere end rotating ring, its
Sealing is tightly packed on pump shaft；Stationary ring, its gap is linked on pump shaft and forms end face seal with atmosphere end rotating ring and coordinates；Media end
Rotating seat, it is tightly placed on pump shaft；Media end rotating ring, its sealing is packed in media end rotating seat；Media end stationary ring, its gap
It is linked on pump shaft and forms end face seal with media end rotating ring and coordinate；Spring, its gap is linked on pump shaft and two ends difference
Tight against stationary ring end and media end stationary ring end；Seal receptacle, for inner seal sleeve dress stationary ring and media end stationary ring；Described sealing
Seat is provided with bath duct, described bath duct and atmosphere end dynamic and static ring end face seal chamber, media end dynamic and static ring end face seal
Chamber connects.
The back-up ring preventing sealing ring from extruding it is provided with between described stationary ring and seal receptacle, when flushing pressure is big, back-up ring
Can prevent the sealing ring between seal receptacle and stationary ring from extruding.
It is marked with from medium inlet end between the equipped wall that media end rotating ring and media end rotating seat are equipped mutually and extends to seal
The food stage glue of circle, prevents food from entering and breed bacteria from the gap between media end rotating ring and media end rotating seat.
The sealing ring contacted with media end by be embedded in portion and with medium single-contact and the contact site structure of rectangular in cross-section
Becoming, sealing ring only has the one side in rectangular contact portion contact with medium, it is to avoid as using face, rank street to be round in the prior art
The sealing ring of shape carries out sealing and causes medium to flow into the phenomenon between sealing ring and parts and occur.
Between described stationary ring and spring and it is provided with gap between media end stationary ring and spring to be linked on pump shaft
Throw-out collar, by the projection of coupling with groove is equipped is connected between described throw-out collar and seal receptacle, throw-out collar one side can increase bullet
Spring compresses area with corresponding stationary ring, and projection and groove by coupling transmit moment of torsion simultaneously.
The food apparatus mechanical seal of the present invention, defines double seals and coordinates, and double seals fit structure
Sharing a seal receptacle and a spring, overall parts are few, simple for structure, seal reliable, arrange the most again on seal receptacle
Bath duct, effectively reduces the temperature of seal face, is suitable for high temperature, the special operation condition of high pressure.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the food apparatus mechanical seal of the present invention.
Fig. 2 is structure for amplifying schematic diagram at the I in Fig. 1.
As shown in the figure: 1 atmosphere end rotating ring, 2 pump shafts, 3 stationary rings, 4 media end rotating seats, 5 media end rotating rings, 6 media ends are quiet
Ring, 7 springs, 8 seal receptacles, 9 bath ducts, 10 atmosphere end dynamic and static ring end face seal chambeies, 11 media end dynamic and static ring end face seal chambeies,
12 back-up rings, 13 food stage glue, 14 sealing rings contacted with media end, 14.1 setting-in portions, 14.2 contact sites；15 baffle rings, 16 push away
Ring, 17 is protruding, 18 grooves.
Detailed description of the invention
With specific embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings:
As it can be seen, the food apparatus mechanical seal of the present invention, including: atmosphere end rotating ring 1, its sealing is tightly packed in pump shaft
On 2, for realizing sealing tight dress with pump shaft 2, between described pump shaft and atmosphere end rotating ring, it is provided with sealing ring, and because atmosphere end is moved
Ring is positioned at atmosphere end, for preventing sealing ring from deviating from, is additionally provided with baffle ring 15 between described pump shaft and atmosphere end rotating ring；
Stationary ring 3, its gap is linked on pump shaft 2 and forms end face seal with atmosphere end rotating ring 1 and coordinates；
Media end rotating seat 4, it is tightly placed on pump shaft 2, and the end of media end rotating seat 4 is close with impeller end (not shown)
Sealing label fills；
Media end rotating ring 5, its sealing is packed in media end rotating seat 4, and media end rotating ring 5 gap is linked in pump shaft
On；
Media end stationary ring 6, its gap is linked on pump shaft 2 and forms end face seal with media end rotating ring 1 and coordinates；
Spring 7, its gap is linked on pump shaft 2 and two ends are respectively tight against stationary ring 3 end and media end stationary ring 6 end；
Seal receptacle 8, for inner seal sleeve dress stationary ring 3 and media end stationary ring 6, for realizing inner seal sleeve dress stationary ring and media end
Stationary ring, is provided with sealing ring, is also equipped with between described stationary ring and seal receptacle between described media end stationary ring and seal receptacle
Sealing ring.
Described seal receptacle 8 is provided with bath duct 9, described bath duct 9 and atmosphere end dynamic and static ring end face seal chamber
10, media end dynamic and static ring end face seal chamber 11 connects.Stationary ring that gap is linked on pump shaft, media end stationary ring, media end rotating ring
Make bath duct 9 can connect with corresponding end face seal chamber.
In the present embodiment, between described stationary ring 3 and seal receptacle 8, it is provided with the back-up ring 12 preventing sealing ring from extruding, gear
The rectangular triangle in cross section of circle 12, the vertical straight flange of the back-up ring of right angled triangle bears the extruding of sealing ring, such right angle three
The back-up ring of dihedral then defines the back-up ring of wedge shape, and wedge shape outer end volume is little, and wedge shape the inner volume is big, is difficult to be extruded.
For preventing bacteria breed, from medium inlet between the equipped wall that media end rotating ring 5 and media end rotating seat 4 phase are equipped with
End is marked with the food stage glue 13 extending to sealing ring.
Be similarly and prevent bacteria breed, the sealing ring 14 contacted with media end by setting-in portion 14.1 and with medium single-contact
Contact site 14.2 constitute.
And the medium contact surface smooth surface of each parts contacted with medium, mellow and full, turning uses arc transition to connect, just
In cleaning, and after cleaning, do not have cleanout fluid residual.
Between described stationary ring 3 and spring 7 and it is provided with gap between media end stationary ring 6 and spring 7 and is linked in pump
Throw-out collar 16 on axle 2, is equipped with is connected by projection 17 and the groove 18 of coupling between described throw-out collar 16 and seal receptacle 8, pass through
Protruding and groove transmits moment of torsion, and that compares routine transmits moment of torsion by bearing pin, eliminates the use of bearing pin, decreases zero
Part, further simplify structure.
The food apparatus mechanical seal of the present invention, overall structure is the most succinct, compact, ingenious cooperation between each parts,
Define double seals to coordinate, and under the effect having bath duct, can effectively reduce the temperature of double containment end face, the most again
Prevent growing of antibacterial.
Claims (5)
1. a food apparatus mechanical seal, it is characterised in that including:
Atmosphere end rotating ring (1), its sealing is tightly packed on pump shaft (2)；
Stationary ring (3), its gap is linked in pump shaft (2) and above and coordinates with atmosphere end rotating ring (1) formation end face seal；
Media end rotating seat (4), it is tightly placed on pump shaft (2)；
Media end rotating ring (5), its sealing is packed in media end rotating seat (4)；
Media end stationary ring (6), its gap is linked in pump shaft (2) and above and coordinates with media end rotating ring (1) formation end face seal；
Spring (7), its gap is linked in pump shaft (2), and above and two ends are held tight against stationary ring (3) end and media end stationary ring (6) respectively
Portion；
Seal receptacle (8), for inner seal sleeve dress stationary ring (3) and media end stationary ring (6)；
Described seal receptacle (8) is provided with bath duct (9), described bath duct (9) and atmosphere end dynamic and static ring end face seal
Chamber (10), media end dynamic and static ring end face seal chamber (11) connection.
Food apparatus mechanical seal the most according to claim 1, it is characterised in that: described stationary ring (3) and seal receptacle
(8) back-up ring (12) preventing sealing ring from extruding it is provided with between.
Food apparatus mechanical seal the most according to claim 1, it is characterised in that: media end rotating ring (5) and media end
It is marked with the food stage glue (13) extending to sealing ring from medium inlet end between the equipped wall that rotating seat (4) is equipped mutually.
Food apparatus mechanical seal the most according to claim 1, it is characterised in that: the sealing ring contacted with media end
(14) contact site (14.2) by setting-in portion (14.1) and with medium single-contact is constituted.
Food apparatus mechanical seal the most according to claim 1, it is characterised in that: described stationary ring (3) and spring (7)
Between and media end stationary ring (6) and spring (7) between be provided with the throw-out collar (16) that gap is linked on pump shaft (2), described
Throw-out collar (16) and seal receptacle (8) between by coupling projection (17) and groove (18) be equipped be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610782579.0A CN106246591A (en) | 2016-08-30 | 2016-08-30 | Food apparatus mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610782579.0A CN106246591A (en) | 2016-08-30 | 2016-08-30 | Food apparatus mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106246591A true CN106246591A (en) | 2016-12-21 |
Family
ID=58081396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610782579.0A Pending CN106246591A (en) | 2016-08-30 | 2016-08-30 | Food apparatus mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106246591A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058467A (en) * | 2018-10-16 | 2018-12-21 | 宁波天工机械密封有限公司 | A kind of corrosion-resisting mechanical seal and installation method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5605436A (en) * | 1995-05-24 | 1997-02-25 | Apv Fluid Handling Horsens A/S | Centrifugal pump |
| CN2436699Y (en) * | 2000-06-27 | 2001-06-27 | 合肥通用机械研究所 | Centralized type double-end face mechanical sealing piece used between axle and casing of rotary pump |
| US20040212154A1 (en) * | 2001-11-22 | 2004-10-28 | Mitsubishi Chemical Corporation | Method of transferring polymerizable liquid and apparatus for transfer |
| CN201221492Y (en) * | 2008-05-20 | 2009-04-15 | 宁波东联密封件有限公司 | Double-end face mechanical seal device |
| CN201297391Y (en) * | 2008-02-02 | 2009-08-26 | 陕西波世特石化机封制造有限公司 | Double-end static compensated welded metal bellows mechanical seal device |
| CN205118243U (en) * | 2015-10-23 | 2016-03-30 | 宁波方力密封件有限公司 | A mechanical seal for food level equipment |
| CN205956056U (en) * | 2016-08-30 | 2017-02-15 | 宁波天工机械密封有限公司 | Mechanical seal for food apparatus |
-
2016
- 2016-08-30 CN CN201610782579.0A patent/CN106246591A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5605436A (en) * | 1995-05-24 | 1997-02-25 | Apv Fluid Handling Horsens A/S | Centrifugal pump |
| CN2436699Y (en) * | 2000-06-27 | 2001-06-27 | 合肥通用机械研究所 | Centralized type double-end face mechanical sealing piece used between axle and casing of rotary pump |
| US20040212154A1 (en) * | 2001-11-22 | 2004-10-28 | Mitsubishi Chemical Corporation | Method of transferring polymerizable liquid and apparatus for transfer |
| CN201297391Y (en) * | 2008-02-02 | 2009-08-26 | 陕西波世特石化机封制造有限公司 | Double-end static compensated welded metal bellows mechanical seal device |
| CN201221492Y (en) * | 2008-05-20 | 2009-04-15 | 宁波东联密封件有限公司 | Double-end face mechanical seal device |
| CN205118243U (en) * | 2015-10-23 | 2016-03-30 | 宁波方力密封件有限公司 | A mechanical seal for food level equipment |
| CN205956056U (en) * | 2016-08-30 | 2017-02-15 | 宁波天工机械密封有限公司 | Mechanical seal for food apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058467A (en) * | 2018-10-16 | 2018-12-21 | 宁波天工机械密封有限公司 | A kind of corrosion-resisting mechanical seal and installation method |
| CN109058467B (en) * | 2018-10-16 | 2023-10-31 | 宁波天工机械密封有限公司 | Corrosion-resistant mechanical seal and installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161221 |
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| RJ01 | Rejection of invention patent application after publication |