CN106939897A - A kind of pump labyrinth type combination sealing and its preparation - Google Patents
A kind of pump labyrinth type combination sealing and its preparation Download PDFInfo
- Publication number
- CN106939897A CN106939897A CN201710234048.2A CN201710234048A CN106939897A CN 106939897 A CN106939897 A CN 106939897A CN 201710234048 A CN201710234048 A CN 201710234048A CN 106939897 A CN106939897 A CN 106939897A
- Authority
- CN
- China
- Prior art keywords
- seal
- combination
- sealing
- labyrinth type
- pump
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 33
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 33
- 239000002131 composite material Substances 0.000 claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 13
- 239000004917 carbon fiber Substances 0.000 claims abstract description 13
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 13
- 239000010439 graphite Substances 0.000 claims abstract description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 13
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000006477 desulfuration reaction Methods 0.000 claims description 13
- 230000023556 desulfurization Effects 0.000 claims description 13
- 210000004907 gland Anatomy 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000004513 sizing Methods 0.000 claims description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000007493 shaping process Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- F04D29/106—Shaft sealings especially adapted for liquid pumps
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
-
- 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
- F04D29/06—Lubrication
- F04D29/061—Lubrication 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sealing Devices (AREA)
Abstract
The present invention relates to a kind of pump labyrinth type combination sealing, it includes power transmission shaft, axle sleeve, it is characterised in that：It is equipped with to be provided with sealing ring, sealing ring between seal combination, the seal combination on axle sleeve and is provided with inlet opening；Seal combination is at least two seal combinations, and the end face of seal one is provided with triangle tongue circle, and seal biend in combination is provided with triangle groove circle, and two seals engage into seal combination；Seal combination seal is filled to polytetrafluoroethylene (PTFE) and is mixed into composite respectively by carbon fiber, graphite, and the process such as is suppressed, heated, toasting, shaping, fastening through mould seal composite is made；Composite composition is by weight percentage：Carbon fiber 13~15%, graphite 6~10%, polytetrafluoroethylene (PTFE) 75~80%.Labyrinth type combination sealing do not reveal, wear-resistant, corrosion-resistant, installs that simple, maintenance time is short, and long service life is greatly enhanced production efficiency, reduces leakage, effective environmental protection pollution.
Description
Technical field
The present invention relates to a kind of pump water-tight equipment, more particularly to a kind of pump labyrinth type combination sealing and its preparation.
Background technology
Desulfurization pump, axial-flow pump can be applied to the pump of a variety of working conditions, axial-flow pump transport acid, alkaline clear liquid or material
Slurry；The various corrosive ore pulps of smelting industry；All kinds of diluted acids of sulfuric acid industry；All kinds of sewage of environmental protection industry (epi) etc..The pump it is not only corrosion-resistant but also
It is wear-resistant, it is quite varied using scope.The chemical industry desulfurization pump that vague generalization industrial and commercial bank industry is commonly used, the medium pumped is starched for sulfuric acid
With substantial amounts of ashes and fine particle PH3 ~ 4,60 DEG C ~ 70 DEG C of slurry temperature in liquid, slurries, pump uses mechanically-sealing apparatus,
Due to carrying substantial amounts of ashes and particle in slurries, pump is in work operation, and the work of machine envelope just produced severe leakage less than 15 days,
Replacing need to be often shut down, repairs also very inconvenient, production cost is added again, the serious normal operation that have impact on production is let out
Dew also result in the pollution of environment simultaneously, and the active force that axial-flow pump is produced by the blade of spinning roller impeller to liquid makes liquid along axis
Direction is conveyed, and can be conveyed clear water, slight sewage, typically using double-mechanical sealing, be asked there is also the poorly sealed leakage caused
Topic.
Therefore, be attempted to solve this problem, desulfurization pump seal use material and structure, make pump have do not reveal,
Wear-resistant, corrosion-resistant the advantages of, at the same there is preferable non-stick, self excellent lubricity, both be adapted to desulfurization pump while
Axial-flow pump is also widely applied to, axial-flow pump pump pulls the plug, it is also desirable to good airproof performance, to prevent the seal of leak-stopping water, makes
It is short with middle maintenance time, the leakage of slurries or water is reduced, environment is not contaminated.
The content of the invention
The problem to be solved in the present invention is that pump is easier to occur severe leakage in work operation, and pump seal material is easily ground
Damage, corrode, need to often shut down replacing, there is provided a kind of pump labyrinth type combination sealing and its preparation, sealing effectiveness for maintenance pump seal
It is good, and installation is simple, maintenance time is short, is greatly enhanced production efficiency, can be widely used for other salinization pumps.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of pump labyrinth type combination sealing, it is wrapped
Include power transmission shaft, axle sleeve, it is characterised in that：It is equipped with the axle sleeve between seal combination, the seal combination and is provided with sealing
Inlet opening is provided with ring, the sealing ring；
The seal combination is at least two seal combinations, and the end face of seal one is provided with triangle tongue circle, in combination
Seal biend is provided with triangle groove circle, and two seals tightly engage into seal combination；
The end of seal combination two is separately installed with internal gland, outer press cover.
Seal case is set with the seal combination.
The internal gland, outer press cover are fastened on seal case both sides respectively.
Preferably, the seal combination can be more than two seal combinations.
Preferably, the inside and outside face of the internal gland, outer press cover is respectively arranged with zero type sealing ring.
A kind of pump preparation of labyrinth type combination sealing, seal combination seal is filled to poly- respectively by carbon fiber, graphite
Tetrafluoroethene（PTFE）And it is mixed into composite, and be made by processes such as mould compacting, heating, baking, sizing, fastenings close
Sealing；
Wherein, composite composition is by weight percentage：Carbon fiber 13~15%, graphite 6~10%, polytetrafluoroethylene (PTFE) 75~
80%,
Composite heating-up temperature is 300~400 DEG C, and baking temperature is 150~200 DEG C.
The present invention has the advantages and positive effects of：
1st, pump labyrinth type combination sealing of the present invention is due to using seal combination for two seal triangles are convex, the engagement of groove circle
Combining structure, and the end of seal combination two uses internal gland, outer press cover to compress respectively, seal combination can be with two or three seal groups
Close, quantity is by using the selected combination of size requirement, and good sealing effect is applicable various different pump classes, desulfurization pump and axial-flow pump application
Effect is good.
2nd, pump of the present invention is special using carbon fiber and graphite filled polytetrafluoroethylene PTFE composite with labyrinth type combination sealing
Determine technique making, it has the advantages that not reveal, wear-resistant, corrosion-resistant, at the same also have good non-adhesion behavior, it is excellent self
Greasy property.Sealed using labyrinth type curved surface, improve original use flat seal, sealing effectiveness is 10 times of mechanical seal, and
Installation is simple, maintenance time is short, and long service life drastically increases production efficiency, reduces the leakage of slurries, effective to protect
Environment is protected not contaminated.
Brief description of the drawings
Fig. 1 pumps of the present invention desulfurization pump configuration schematic diagram of labyrinth type combination sealing.
Fig. 2 pumps of the present invention structural representation of seal one of labyrinth type combination sealing.
Fig. 3 pumps of the present invention structural representation of seal two of labyrinth type combination sealing.
1- power transmission shafts, 2- axle sleeves, 3- seal combinations, 4- seals one, 5- seals two, 6- seals three, 7- triangles are convex
Groove circle, 8- triangle groove circles, 9- sealing rings, 10- inlet openings, 11- internal glands, 12- outer press covers, 13- seal cases, the types of 14- zero
Sealing ring.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in more detail.
As shown in Fig. 1,2,3, a kind of pump labyrinth type combination sealing is set with axle sleeve 2 on power transmission shaft 1, is covered on axle sleeve 2
Seal combination 3 is filled, seal combination 3 is by least two seal combinations, and seal combination 3 is by seal 1, seal 252
Seal combination is formed, and the end face of seal 1 is provided with triangle tongue circle 7, and the end face of seal 25 in combination is provided with triangle
Groove circle 8, seal 1,252 seal mesh combinations of seal；The other end of seal 25 is provided with triangle tongue
Circle 7, the end face of seal 36 is provided with triangle groove circle 8, and seal 25,362 seal mesh combinations of seal are formed
Seal 1, seal 25,363 seal mesh combinations of seal, visual pump and sleeve length carry out multiple sealings
Part mesh combination.Seal combination 3 can be with two or more than three seal combinations.
Between seal combination 3 can be set have sealing ring 9, sealing ring 9 is sleeved on axle sleeve 2, be provided with sealing ring 9 into
Water hole 10；Seal case 13 is set with seal combination 3, the end of seal combination 3 two is separately installed with internal gland 11, outer press cover 12；
Internal gland 11, outer press cover 12 are fastened on the both sides of seal case 13 by fastener respectively, internal gland 11, outer press cover 12 it is inside and outside
Face is equipped with zero type sealing ring 14 respectively, zero type sealing ring 14 be fastened on respectively on axle sleeve 2 and seal case 13 in.
Embodiment 1：The seal of seal combination is filled into polytetrafluoroethylene (PTFE) respectively using carbon fiber, graphite（PTFE）And mix
Synthetic composite material, the process such as suppresses by mould, heats, toasting, shaping, fastening and seal is made（PTFE）, composite
13% carbon fiber by weight percentage, 6% is graphite-filled to 81% polytetrafluoroethylene (PTFE)（PTFE）In, composite heating-up temperature is
350 DEG C, baking temperature is processed production for 150 DEG C, is made after seal and seal end face is processed into triangle on request
Tongue circle or triangle groove circle, tightly engage into seal combination using seal one, two or two seals of seal, are put into desulfurization
Used in pump.
Embodiment 2：The seal of seal combination is filled into polytetrafluoroethylene (PTFE) respectively using carbon fiber, graphite（PTFE）And mix
Synthetic composite material, the process such as suppresses by mould, heats, toasting, shaping, fastening and seal is made（PTFE）, composite
15% carbon fiber by weight percentage, 10% is graphite-filled to 75% polytetrafluoroethylene (PTFE)（PTFE）In, composite heating-up temperature is
380 DEG C, baking temperature is processed production for 190 DEG C, is made after seal and seal end face is processed into triangle on request
Tongue circle or triangle groove circle, sealing is tightly engaged into using seal one, seal two, three or three seals of seal respectively
Combination, is put into desulfurization pump using three seals, two groups of seal combinations and used.
Embodiment 3：The seal of seal combination is filled into polytetrafluoroethylene (PTFE) respectively using carbon fiber, graphite（PTFE）And mix
Synthetic composite material, the process such as suppresses by mould, heats, toasting, shaping, fastening and seal is made（PTFE）, composite
14% carbon fiber by weight percentage, 8% is graphite-filled to 78% polytetrafluoroethylene (PTFE)（PTFE）In, composite heating-up temperature is
360 DEG C, baking temperature is processed production for 160 DEG C, is made after seal and seal end face is processed into triangle on request
Tongue circle or triangle groove circle, seal combination is tightly engaged into using seal one, two or two seals of seal；Again using close
Sealing one, seal two, three or three seals of seal tightly engage into seal combination respectively, using two seals, three
Two groups of seal combinations of seal, which are put into desulfurization pump, to be used.
By testing repeatedly, the seal combination seal of embodiment 3 use weight proportion composite in actual applications,
Seal, wear-resisting, corrosion resistant effect is good and self greasy property is good.
Embodiments of the invention are described in detail above, but the content is only presently preferred embodiments of the present invention,
It is not to be regarded as the practical range for limiting the present invention.All impartial changes made according to the scope of the invention and improvement etc., all should
Still belong within this patent covering scope.
Claims (6)
1. a kind of pump labyrinth type combination sealing, including power transmission shaft, axle sleeve, it is characterised in that：Sealing is equipped with the axle sleeve
It is provided between combination, the seal combination in sealing ring, the sealing ring and is provided with inlet opening；
The seal combination is at least two seal combinations, and the end face of seal one is provided with triangle tongue circle, in combination
Seal biend is provided with triangle groove circle, and two seals tightly engage into seal combination；
The end of seal combination two is separately installed with internal gland, outer press cover.
2. a kind of desulfurization pump labyrinth type combination sealing according to claim 1, it is characterised in that：Covered in the seal combination
Equipped with seal case.
3. a kind of desulfurization pump labyrinth type combination sealing according to claim 1, it is characterised in that：The internal gland, external pressure
Lid is fastened on seal case both sides respectively.
4. a kind of desulfurization pump labyrinth type combination sealing according to claim 1, it is characterised in that：The seal combination can be with
For more than two seal combinations.
5. a kind of desulfurization pump labyrinth type combination sealing according to claim 1, it is characterised in that：The internal gland, external pressure
The inside and outside face of lid is respectively arranged with zero type sealing ring.
6. a kind of pump preparation of labyrinth type combination sealing, the seal of seal combination is filled to poly- respectively by carbon fiber, graphite
Tetrafluoroethene（PTFE）Composite is mixed into, and sealing is made by processes such as mould compacting, heating, baking, sizing, fastenings
Part；
Wherein, composite composition is by weight percentage：Carbon fiber 13~15%, graphite 6~10%, polytetrafluoroethylene (PTFE) 75~
80%,
Composite heating-up temperature is 300~400 DEG C, and baking temperature is 150~200 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234048.2A CN106939897A (en) | 2017-04-11 | 2017-04-11 | A kind of pump labyrinth type combination sealing and its preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234048.2A CN106939897A (en) | 2017-04-11 | 2017-04-11 | A kind of pump labyrinth type combination sealing and its preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106939897A true CN106939897A (en) | 2017-07-11 |
Family
ID=59464200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710234048.2A Pending CN106939897A (en) | 2017-04-11 | 2017-04-11 | A kind of pump labyrinth type combination sealing and its preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106939897A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2178810Y (en) * | 1993-09-27 | 1994-10-05 | 罗辉 | Combined sealing for pump |
| US20020109634A1 (en) * | 2001-02-15 | 2002-08-15 | Integral Technologies, Inc. | Low cost antennas using conductive plastics or conductive composites |
| CN1844671A (en) * | 2005-04-08 | 2006-10-11 | 沈阳气体压缩机股份有限公司 | Oil-free lubricated seal ring resistant to high temperature and high pressure |
| CN101159211A (en) * | 2007-10-22 | 2008-04-09 | 陈卫 | Mercury gun |
| CN203570860U (en) * | 2013-11-11 | 2014-04-30 | 无锡市后宅振新机械有限公司 | Bearing block structure |
| CN204841405U (en) * | 2015-06-11 | 2015-12-09 | 内蒙古京泰发电有限责任公司 | Bearing under thick liquid liquid |
| CN206708082U (en) * | 2017-04-11 | 2017-12-05 | 天门市江汉石油三机传动设备有限公司 | A kind of pump labyrinth type combination sealing |
-
2017
- 2017-04-11 CN CN201710234048.2A patent/CN106939897A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2178810Y (en) * | 1993-09-27 | 1994-10-05 | 罗辉 | Combined sealing for pump |
| US20020109634A1 (en) * | 2001-02-15 | 2002-08-15 | Integral Technologies, Inc. | Low cost antennas using conductive plastics or conductive composites |
| CN1844671A (en) * | 2005-04-08 | 2006-10-11 | 沈阳气体压缩机股份有限公司 | Oil-free lubricated seal ring resistant to high temperature and high pressure |
| CN101159211A (en) * | 2007-10-22 | 2008-04-09 | 陈卫 | Mercury gun |
| CN203570860U (en) * | 2013-11-11 | 2014-04-30 | 无锡市后宅振新机械有限公司 | Bearing block structure |
| CN204841405U (en) * | 2015-06-11 | 2015-12-09 | 内蒙古京泰发电有限责任公司 | Bearing under thick liquid liquid |
| CN206708082U (en) * | 2017-04-11 | 2017-12-05 | 天门市江汉石油三机传动设备有限公司 | A kind of pump labyrinth type combination sealing |
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| 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170711 |
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| WD01 | Invention patent application deemed withdrawn after publication |