CN109654061A - A kind of Fluorine-lined shurry pump integrated mechanical sealing - Google Patents
A kind of Fluorine-lined shurry pump integrated mechanical sealing Download PDFInfo
- Publication number
- CN109654061A CN109654061A CN201910132460.2A CN201910132460A CN109654061A CN 109654061 A CN109654061 A CN 109654061A CN 201910132460 A CN201910132460 A CN 201910132460A CN 109654061 A CN109654061 A CN 109654061A
- Authority
- CN
- China
- Prior art keywords
- ring
- gland
- sealing
- axle sleeve
- fluorine
- 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.)
- Withdrawn
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
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials 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
- F04D29/08—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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps 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
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
Abstract
The invention belongs to Fluorine-lined shurry pump technical field of mechanical, more particularly to a kind of Fluorine-lined shurry pump integrated mechanical sealing, the impeller left-hand thread of Fluorine-lined shurry pump is in formation sealing in mechanical seal, including axle sleeve, gland, the media end sealing on the inside of gland and the atmosphere end on the outside of gland being set to outside pump shaft, axle sleeve is externally provided with the mutually matched rotating ring one of two groups of difference and stationary ring one, rotating ring two and stationary ring two, and the position card that axle sleeve corresponds on the inside of one contact jaw of rotating ring one and stationary ring sets circlip one；Gland is equipped with end face sealing ring close to the side of stationary ring one, and the corresponding gland inner ring card of table top two far from stationary ring one sets circlip two.The present invention have the advantage that compared with prior art it is structurally reasonable, circlip one cooperate axle sleeve use, can effectively limit the position of rotating ring one, ensure that the face pressure of mechanical seal is constant；Cooperate gland to be defined end face sealing ring using circlip two, solves the problems, such as since silicon carbide hot-mounting process yield rate is low.
Description
Technical field
The invention belongs to Fluorine-lined shurry pump technical field of mechanical, and in particular to a kind of Fluorine-lined shurry pump packaging type
Mechanical seal.
Background technique
Shurry pump refers to that pumped (conveying) medium is the fluid (rather than clear liquid) of Slurries, it is that one kind is ordered with pumped (conveying) medium type
The pump of name is used exclusively for conveying containing solid particulate matter, easily crystallizes, having particularity fluid Jie of viscosity, ore pulp, desulphurization circulating liquid
Matter and design and develop, the material of general shurry pump has: liner high molecular polythene, special type abrasion resistant alloy, 2205 two-phase stainless
The materials such as steel, common stainless steel；According to different operating conditions, unlike material is selected；It is mainly characterized by wearability, impact resistance, is resisted
Creep properties and corrosion resistance will match.
For using integrated mechanical sealing on plastic pump, there are problems that material matching, existing integrated mechanical sealing connect liquid
There is metalwork in part, it is therefore desirable to metalwork material type used in mechanical seal is selected according to institute's pumped (conveying) medium, when will increase
Between cost, material cost and processing cost；In order to solve this problem, occurring portion in contact with the electrolyte currently on the market is silicon carbide
Bulk type mechanical seal, but bulk type mechanical seal end surface is difficult to control than pressure, and the installation of bulk type mechanical seal is to installation
Maintenance personal's level professional technology is more demanding, therefore will increase cost of labor.
In order to improve the wearability and rotproofness of shurry pump, the prior art selects double mechanical seal, double mechanical
It seals portion in contact with the electrolyte material and selects silicon carbide, but in practical applications, in order to improve the use temperature of circle sealing ring with o, out
Hot charging formula sealing ring is showed, it is current that the interference fit between carbide ring and ring seat, which transmits torque and realizes sealing,
Using a kind of most sealing rings, sealing ring can be ground and polish at normal temperature to permissible accuracy, but with using, it is close
The flatness in sealing end face can change and undesirable, simultaneously as being easy to burst when silicon carbide sealed ring hot charging, cause
Silicon carbide hot-mounting process yield rate is low, therefore, it is necessary to change other assembly methods to replace traditional hot-mounting process, therefore, it is necessary to
Upper problem is solved, to improve the service performance of Fluorine-lined shurry pump.
Summary of the invention
The purpose of the present invention is be directed to the material matching problem of existing plastic pump integrated mechanical sealing, existing packaging type
Mechanical seal portion in contact with the electrolyte has metalwork, it is therefore desirable to select metalwork material according to institute's pumped (conveying) medium type, will increase into
This, it is also possible to will cause in mechanical seal metalwork can not selection the problem of, there is portion in contact with the electrolyte on existing market and be all carbon
The bulk type mechanical seal of SiClx, but not can guarantee mechanical seal end surface than pressure, while being easy when silicon carbide sealed ring hot charging
Now burst, impeller back-off installation influence media end seal face than pressure the problem of, the present invention provides a kind of Fluorine-lined shurry pump use
Integrated mechanical sealing can guarantee all silicon carbide of portion in contact with the electrolyte by impeller left-hand thread in mechanical seal in this way, on material with fluorine
Plastics matching, and the mechanical seal collection that can will be unable to packaging loads, and solves that face pressure is non-constant, the work of end face sealing ring
Skill problem, cooperation sealing ring form sealing, avoid axial leakage, then by the way that circlip one is rationally arranged, solve impeller back-off
The stationary ring of impeller side can be driven the problem of moving axially by process, and after packaging, without adjusting, connection bolt make-up is for mechanical seal
It can be used, it is convenient to install and maintain, it is low to the level requirement of installation and maintenance personnel.
The present invention is achieved by the following technical solutions: a kind of Fluorine-lined shurry pump integrated mechanical sealing, the lining
The impeller left-hand thread of fluorine shurry pump is close in formation sealing, the medium for reaching 40% for conveying solid content, the machinery in mechanical seal
Envelope is monoblock type collection assembling structure, solves bulk type seal face as caused by parts machining error and makes than pressing non-constant
At seal failure problem；Axle sleeve, gland, the media end on the inside of gland including being set to outside pump shaft seal and are located at gland
The atmosphere end in outside, the axle sleeve are externally provided with the mutually matched rotating ring one of two groups of difference and stationary ring one, rotating ring two and stationary ring two, institute
It states rotating ring one and is fixed on axle sleeve by trundle one, the installation direction of trundle one and axial direction parallel, the rotating ring one and axis
Part between set relative to the inner side and outer side of trundle one is equipped with sealing ring one and sealing ring two, and the axle sleeve corresponds to rotating ring
One and one contact jaw of stationary ring on the inside of position card set circlip one, avoid the occurrence of axial movement for limiting rotating ring one；
The gland is equipped with end face sealing ring close to the side of stationary ring one, and the end face sealing ring includes two step surfaces, close
The step surface one of stationary ring one is flushed with the gland part of corresponding position, equipped with covering the gasket of step surface one and gland simultaneously,
The corresponding gland inner ring card of table top two far from stationary ring one sets circlip two, avoids the occurrence of axial fortune for limiting end face sealing ring
It is dynamic；
It is equipped with spring base one on the right side of stationary ring one, spring one, the end face seal are installed between the spring base one and gland
Sealing ring three is equipped between ring, stationary ring one and gland；
The rotating ring two is fixed on axle sleeve by trundle two, and the side of stationary ring two is equipped with spring base two, the spring base two
Spring two is installed between gland, and sealing ring four is equipped between the spring base two and stationary ring two, is set between rotating ring two and axle sleeve
There is sealing ring five, the right end card of the gland sets positioning checkpoint, and positioning checkpoint is fixed on axle sleeve by pivot pin, rotating ring two and fixed
Position clamp is equipped with sealing ring five close to the part of axle sleeve.
As further improvement of these options, the end face sealing ring is equipped with convex annular close to the side of rotating ring one
It rises, the sealing ring San Tong method is abutted against with annular protrusion, end face seal ring-side wall, stationary ring one and gland.
As further improvement of these options, the media end on the inside of gland is sealed into the design of in-flow structure,
Mechanical seal leakage direction and rotary centrifugal force it is contrary, reduce medium and crystal enter the possibility of seal face
Property.
As further improvement of these options, the atmosphere end on the outside of gland uses water-stop, can prevent from having
Mordant poisonous and harmful media leaks enter atmosphere, and so that the sealing effect is better, while can seal to media side and entire close
Envelope chamber is cooled down, lubricated and is rinsed.
As further improvement of these options, the spring one and spring two are multiple springs form, can be by changing
Become number of springs and control elastic force, axial force is more uniform, is used for high-speed rotating rotating machinery, but be not suitable for mordant defeated
Medium is sent, in the present invention by the way that sealing ring three and sealing ring four is rationally arranged, is suitably cooperated with gland, effectively by medium and bullet
Spring separates, and it is stuck by dielectric corrosion or particle to avoid spring.
As further improvement of these options, the circlip one and circlip two are to use circlip in hole.
As further improvement of these options, the material of the end face sealing ring is silicon carbide；The gland, rotating ring
One, stationary ring one, rotating ring two, stationary ring two material be pressureless sintering silicon carbide, the material wear-resistant corrosion resistant, suitable for conveying contain admittedly
Higher or mordant medium is measured, the applicability of mechanical seal can be effectively improved.
The present invention has the advantage that the mechanical seal structure is reasonable compared with prior art, by impeller left-hand thread in mechanical close
Envelope, can guarantee all silicon carbide of portion in contact with the electrolyte in this way, matches on material with fluoroplastics, and can will be unable to the mechanical seal of packaging
Collection loads, and solves that face pressure is non-constant, the technological problems of end face sealing ring, and cooperation sealing ring forms sealing, avoids axis
To leakage, circlip one cooperates axle sleeve to use, and can effectively limit the position of rotating ring one, avoids rotating ring due to impeller in left-hand thread
It is moved axially caused by one drive, ensure that the face pressure of mechanical seal is constant；The material of end face sealing ring is silicon carbide, such as
Fruit is easy to happen using traditional hot-mounting process and is burst, therefore cooperates gland to be defined end face sealing ring using circlip two, is adopted
Cooperate restriction end face sealing ring to move in the axial direction with minim gap, solves and asked since silicon carbide hot-mounting process yield rate is low
Topic；Mechanical seal liquid-contacting part uses carbofrax material, and anticorrosive anti-wear is applied widely；Integrated mechanical sealing is before use
Without adjusting, connection bolt, which tightens, be can be used, convenient to install and maintain, low to the level requirement of installation and maintenance personnel, can be dropped
Low cost of labor.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
The following further describes the present invention with reference to the drawings.
As shown in fig. 1, a kind of Fluorine-lined shurry pump integrated mechanical sealing, the impeller left-hand thread of the Fluorine-lined shurry pump in
Sealing is formed in mechanical seal, and (this mounting means can prevent material from axially revealing, but may make rotating ring 1 in the axial direction
Movement), the medium for reaching 40% for conveying solid content, the mechanical seal be monoblock type collection assembling structure, solve bulk type by
The seal face caused by parts machining error than press it is non-constant and caused by seal failure problem；Including being set to outside pump shaft
Axle sleeve 1, gland 2, the atmosphere end positioned at the media end sealing of 2 inside of gland and positioned at 2 outside of gland, the axle sleeve 1 are externally provided with
The mutually matched rotating ring 1 of two groups of difference and stationary ring 1, rotating ring 2 52 and stationary ring 2 62, the rotating ring 1 pass through transmission
Pin 1 is fixed on axle sleeve 1, the installation direction of trundle 1 and axial parallel, phase between the rotating ring 1 and axle sleeve 1
Sealing ring 1 and sealing ring 2 32 are equipped with for the part of the inner side and outer side of trundle 1, sealing ring 2 32 is mainly to dynamic
Ring 1 and axle sleeve 1 are sealed radially, and one 31 pairs of axle sleeves 1 of the sealing ring and rotating ring 1 carry out close in the axial direction
Envelope, the position card that the axle sleeve 1 corresponds on the inside of rotating ring 1 and one 61 contact jaw of stationary ring sets circlip 1, for limiting rotating ring one
51 avoid the occurrence of axial movement；
The gland 2 is equipped with end face sealing ring 7 close to the side of stationary ring 1, and the end face sealing ring 7 includes two step surfaces,
It is flushed close to the step surface 1 of stationary ring 1 with 2 part of gland of corresponding position, equipped with covering step surface 1 simultaneously and press
The gasket 36 of lid 2, the corresponding gland inner ring card of table top 2 73 far from stationary ring 1 sets circlip 2 42, close for limiting end face
Seal ring 36 avoids the occurrence of axial movement；
It is equipped with spring base one on the right side of stationary ring 1, spring 1, the end face are installed between the spring base one and gland 2
Sealing ring 3 33 is equipped between sealing ring 36, stationary ring 1 and gland 2；
The rotating ring 2 52 is fixed on axle sleeve 1 by trundle two, and the side of stationary ring 2 62 is equipped with spring base two, the spring
Spring 2 82 is installed between seat two and gland 2, and sealing ring 4 34, rotating ring 2 52 are equipped between the spring base two and stationary ring 2 62
Sealing ring 5 35 is equipped between axle sleeve 1, the right end card of the gland 2 sets positioning checkpoint 12, and positioning checkpoint 12 is solid by pivot pin
Due on axle sleeve 2, rotating ring 2 52 is equipped with sealing ring 5 35 close to the part of axle sleeve 1 with positioning checkpoint 12.
Wherein, the end face sealing ring 7 is equipped with annular protrusion 71 close to the side of rotating ring 1, and the sealing ring 3 33 is same
When be abutted against with annular protrusion 71,7 side wall of end face sealing ring, stationary ring 1 and gland 2；
Media end positioned at 2 inside of gland is sealed into the design of in-flow structure, the leakage direction of mechanical seal and rotary centrifugal force
It is contrary, reduce medium and a possibility that crystal enters seal face.
Wherein, the atmosphere end positioned at 2 outside of gland uses water-stop, can prevent having corrosive poisonous and harmful medium
Atmosphere is leaked into, so that the sealing effect is better, while can seal to media side and be cooled down, lubricated and rushed with entire seal chamber
It washes.
Wherein, the spring 1 and spring 2 82 are multiple springs form, can control elastic force by changing number of springs,
Axial force is more uniform, is used for high-speed rotating rotating machinery, but be not suitable for mordant pumped (conveying) medium, leads in the present invention
Rationally setting sealing ring 3 33 and sealing ring 4 34 are crossed, suitably cooperates with gland 2, effectively medium and spring is separated, avoided
Spring is stuck by dielectric corrosion or particle.
Wherein, the circlip 1 and circlip 2 82 are to use circlip in hole.
Wherein, the material of the end face sealing ring 7 is silicon carbide；The gland 2, rotating ring 1, stationary ring 1, rotating ring two
52, the material of stationary ring 2 62 is pressureless sintering silicon carbide, the material wear-resistant corrosion resistant, higher or have corruption suitable for conveying solid content
The medium of corrosion can effectively improve the applicability of mechanical seal.
The mechanical seal structure is reasonable, and circlip 1 cooperates axle sleeve 1 to use, and can effectively limit the position of rotating ring 1,
Axial movement caused by driving rotating ring 1 in left-hand thread as impeller is avoided, ensure that the face pressure of mechanical seal is permanent
It is fixed；The material of end face sealing ring 7 is silicon carbide, is burst if be easy to happen using traditional hot-mounting process, therefore utilizes circlip two
42 cooperation glands 2 are defined end face sealing ring 7, cooperate restriction end face sealing ring 7 to move in the axial direction using minim gap,
It solves the problems, such as since silicon carbide hot-mounting process yield rate is low.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. a kind of Fluorine-lined shurry pump integrated mechanical sealing, the impeller left-hand thread of the Fluorine-lined shurry pump in mechanical seal in forming
Sealing, the medium for reaching 40% for conveying solid content, the mechanical seal is monoblock type collection assembling structure, including is set to outside pump shaft
Axle sleeve, gland, on the inside of gland media end sealing and the atmosphere end on the outside of gland, the axle sleeve be externally provided with two groups
Mutually matched rotating ring one and stationary ring one, rotating ring two and stationary ring two respectively, which is characterized in that the rotating ring one passes through trundle one
It is fixed on axle sleeve, the installation direction of trundle one is parallel with axial direction, relative to trundle one between the rotating ring one and axle sleeve
The part of inner side and outer side be equipped with sealing ring one and sealing ring two, the axle sleeve correspond to rotating ring one and stationary ring one contact jaw inside
Position card set circlip one, avoid the occurrence of axial movement for limiting rotating ring one；
The gland is equipped with end face sealing ring close to the side of stationary ring one, and the end face sealing ring includes two step surfaces, close
The step surface one of stationary ring one is flushed with the gland part of corresponding position, equipped with covering the gasket of step surface one and gland simultaneously,
The corresponding gland inner ring card of table top two far from stationary ring one sets circlip two, avoids the occurrence of axial fortune for limiting end face sealing ring
It is dynamic；
It is equipped with spring base one on the right side of stationary ring one, spring one, the end face seal are installed between the spring base one and gland
Sealing ring three is equipped between ring, stationary ring one and gland；
The rotating ring two is fixed on axle sleeve by trundle two, and the side of stationary ring two is equipped with spring base two, the spring base two
Spring two is installed between gland, and sealing ring four is equipped between the spring base two and stationary ring two, is set between rotating ring two and axle sleeve
There is sealing ring five, the right end card of the gland sets positioning checkpoint, and positioning checkpoint is fixed on axle sleeve by pivot pin, rotating ring two and fixed
Position clamp is equipped with sealing ring five close to the part of axle sleeve.
2. a kind of Fluorine-lined shurry pump integrated mechanical sealing as described in claim 1, which is characterized in that the end face sealing ring
Annular protrusion, the sealing ring San Tong method and annular protrusion, end face seal ring-side wall, stationary ring one are equipped with close to the side of rotating ring one
It is abutted against with gland.
3. a kind of Fluorine-lined shurry pump integrated mechanical sealing as described in claim 1, which is characterized in that on the inside of gland
Media end is sealed into the design of in-flow structure.
4. a kind of Fluorine-lined shurry pump integrated mechanical sealing as described in claim 1, which is characterized in that on the outside of gland
Atmosphere end uses water-stop.
5. a kind of Fluorine-lined shurry pump integrated mechanical sealing as described in claim 1, which is characterized in that the spring one and bullet
Spring two is multiple springs form.
6. a kind of Fluorine-lined shurry pump integrated mechanical sealing as described in claim 1, which is characterized in that the circlip one and card
Spring two is to use circlip in hole.
7. a kind of Fluorine-lined shurry pump integrated mechanical sealing as described in claim 1, which is characterized in that the end face sealing ring
Material be silicon carbide.
8. a kind of Fluorine-lined shurry pump integrated mechanical sealing as described in claim 1, which is characterized in that the gland, rotating ring
One, stationary ring one, rotating ring two, stationary ring two material be pressureless sintering silicon carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910132460.2A CN109654061A (en) | 2019-02-22 | 2019-02-22 | A kind of Fluorine-lined shurry pump integrated mechanical sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910132460.2A CN109654061A (en) | 2019-02-22 | 2019-02-22 | A kind of Fluorine-lined shurry pump integrated mechanical sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109654061A true CN109654061A (en) | 2019-04-19 |
Family
ID=66123597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910132460.2A Withdrawn CN109654061A (en) | 2019-02-22 | 2019-02-22 | A kind of Fluorine-lined shurry pump integrated mechanical sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109654061A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115492773B (en) * | 2022-11-21 | 2023-03-24 | 烟台龙港泵业股份有限公司 | Centrifugal pump for offshore oil exploitation |
-
2019
- 2019-02-22 CN CN201910132460.2A patent/CN109654061A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115492773B (en) * | 2022-11-21 | 2023-03-24 | 烟台龙港泵业股份有限公司 | Centrifugal pump for offshore oil exploitation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190419 |
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| WW01 | Invention patent application withdrawn after publication |