CN108443169A - A kind of centrifugation shurry pump with air shaft sealing device - Google Patents
A kind of centrifugation shurry pump with air shaft sealing device Download PDFInfo
- Publication number
- CN108443169A CN108443169A CN201810527619.6A CN201810527619A CN108443169A CN 108443169 A CN108443169 A CN 108443169A CN 201810527619 A CN201810527619 A CN 201810527619A CN 108443169 A CN108443169 A CN 108443169A
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- CN
- China
- Prior art keywords
- pump
- sealing
- air
- main shaft
- sealing device
- 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 97
- 238000005119 centrifugation Methods 0.000 title claims abstract description 24
- 238000003860 storage Methods 0.000 claims abstract description 42
- 239000002002 slurry Substances 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims description 14
- 239000005060 rubber Substances 0.000 claims description 14
- 230000003068 static effect Effects 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 7
- 238000011010 flushing procedure Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000498 cooling water Substances 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000011553 magnetic fluid Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 238000005406 washing Methods 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
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0606—Canned motor 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
- F04D29/106—Shaft sealings 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)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of centrifugation shurry pump with air shaft sealing device, including the impeller in pump case, pump cover, pump case, main shaft one end for being connect with impeller, the main shaft other end is pierced by pump case and is connect with motor, the shaft sealer for will be sealed between pump case and main shaft is provided on main shaft, main shaft is vertically arranged or being obliquely installed horizontal by 20 ~ 70 degree of angles, shaft sealer includes the first sealing of the air storage vessel sealed with the main shaft punched out of pump case and the salable air for being set to air storage vessel top, and main shaft is interspersed in air storage vessel.The sealing life of slurry centrifugal pump is set to extend 1 ~ 2 times.It is rinsed all the year round without cooling water, using water wisely.The shortcomings that cooling leaked water, clean working environment.Improve centrifugation shurry pump general safety reliability.
Description
Technical field
The present invention relates to centrifugation shurry pump production fields, more particularly to centrifugation slurry shaft seal.
Background technology
Centrifugation shurry pump is the slurry pipeline transport machinery largely selected in domestic various industrial circles, and the whole nation just has nearly million
Platform centrifuges shurry pump operation on duty.
In the prior art, the common sealing of the centrifugal pump of slurry is conveyed, there is the machine envelope with dynamic and static ring, the rubber with lip
Sealing, packing seal etc. are enclosed, but since all sealings are all in direct contact generation abrasion with transported slurry, causes pump shaft close
Envelope is easily damaged, and the still shurry pump without desirable seal appears on the market both at home and abroad so far.
Moreover in order to rinse and cool down shaft seal, external chilled water unit is there is provision of, both bothers or has consumption to cool down
The excessive sorrow for causing environmental pollution of the deficiency of water, also cooling water.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of energy interval dry run, cooling water washing, sealing are not had to
Can good, sealing service life grow 2 ~ 3 times of the centrifugal pump with air shaft sealing device, slurry can not only be conveyed, moreover it is possible to defeated
Send volatile liquid and other clear liquid class media.
To realize goal of the invention, following technical scheme is provided：A kind of centrifugation shurry pump with air shaft sealing device,
Including the impeller in pump case, pump cover, pump case, main shaft one end for being connect with impeller, the main shaft other end is pierced by pump case and is connect with motor,
The shaft sealer for will be sealed between pump case and main shaft is provided on main shaft, it is characterised in that main shaft is vertically arranged or and water
Plane is obliquely installed in 20 ~ 70 degree of angles, shaft sealer include the air storage vessel that is sealed with the main shaft punched out of pump case with
And it is set to the first sealing of the salable air on air storage vessel top, main shaft is interspersed in air storage vessel.
Preferably, air storage vessel bottom end is provided with the second sealing of sealing slurry.
Preferably, the height between the top and lowermost end of air storage vessel is 5cm-30cm.
Preferably, first axle is sealed into the mechanical seal with dynamic and static ring or magnet fluid sealing or magnetic with dynamic and static ring is close
Envelope.
Preferably, the second sealing is the sealing of rubber lip circle or the mechanical seal with dynamic and static ring or packing seal.
Preferably, being provided with wind wheel on main shaft above the first sealing.
Preferably, offering flushing hole on air storage vessel.
Preferably, first axle sealed bottom is provided with preserving and sealing circle.
Preferably, signal transducer is provided in air storage vessel, the external alarm system of signal transducer.
Preferably, the sealing position of pump case is provided with Pump Suction Nozzle, and suction inlet threeway is set.
It includes metal pump, plastic pump, plastic-lining centrifugal pump to centrifuge shurry pump.
The centrifugation shurry pump can be preceding suction centrifugal pump, can also be side-suction type centrifugal pump.
The impeller is equipped with back blade.
The back blade can be that spoke is radial, or the foliaceous of bending, preferably spoke are radial.
The lip-shaped ring is sealed into modified tetrafluoro.
The lip-shaped ring is sealed into fabricated structure.
Air accumulation in the air storage vessel refers to the pressurized fluid conveyed in pump chamber, and original is stored in the air at sealing,
Compress the air at pusher to rear road sealing.
The present invention basic functional principle be：Pump machine is holded up into installation, main shaft is perpendicular to be filled, when pump machine is run, shaft seal
Air in position air storage vessel is squeezed by liquid in pump chamber and is pushed away, accumulate in air storage vessel by the light effect of liquid again gas, and the
Air, which is closed, under the action of one sealing accumulates in vessel, keeps first axle in sealing contact less than the liquid in pump chamber, effectively
Extend the service life of the first sealing.
In order to both consider that air storage vessel gathers the effect of gas, it is also contemplated that facilitating maintenance and installation, pump machine can be by vertically pacifying
Dress changes into angle mount, and the effect of accumulated gas existing in this way can also maintain easily lifting.
The italic is installed as motor side and is higher than pump housing portion.
The slope of the pump machine angle mount can select between 20 ~ 70 degree.
Advantageous effect of the present invention：The sealing life of slurry centrifugal pump is set to extend 1 ~ 2 times.It rinses, saves all the year round without cooling water
About use water.The shortcomings that cooling leaked water, clean working environment.Improve centrifugation shurry pump general safety reliability.
Description of the drawings
Fig. 1 is the structure diagram of suction centrifugal pump before the present invention.
Fig. 2 is the structure diagram of centrifugal pump angle mount of the present invention.
Fig. 3 is the partial enlarged view in the portions A in Fig. 1（Preceding road is sealed into that the sealing of rubber lip circle, that rear road is sealed into magnetic fluid is close
Envelope）.
Fig. 4 is another structure type of Fig. 3（Front and back sealing is the sealing of rubber lip circle）.
Fig. 5 is another structure type of Fig. 3（Preceding road is sealed into that the sealing of rubber lip circle, that rear road is sealed into magnetic fluid is close
Envelope, and it is equipped with preserving and sealing circle）.
Fig. 6 is the partial enlarged view in the portions A in Fig. 5.
Fig. 7 is another structure type of Fig. 3（Sealing outer closure is arranged with flusher）.
Fig. 8 is another structure type of Fig. 3（Preceding road is sealed into that the sealing of rubber lip circle, that rear road is sealed into magnetic is close
Envelope）.
Fig. 9 is the partial enlarged view in the portions A in Fig. 8.
Figure 10 is the structure diagram of suction centrifugal pump after the present invention.
Figure 11 is another structure type in the portions A in Figure 10（Outside preceding road is sealed into the sealing of rubber lip circle, rear road is sealed into
Wrap up the magnet fluid sealing of the internal-external magnetic steel structure of plastics）.
Figure 12 is the partial enlarged view in the portions A in Figure 11.
Specific implementation mode
Embodiment 1：（Referring to Fig. 1 ~ 9）
A kind of centrifugation shurry pump with air shaft sealing device, including the impeller 4 in pump case 2, pump cover 3, pump case 2 and impeller 4
1 one end of main shaft of connection, 1 other end of main shaft are pierced by pump case 2 and are connect with motor 6, be provided on main shaft 1 for by pump case 2 with it is main
The shaft sealer sealed between axis 1, main shaft 1 is vertically arranged or being obliquely installed horizontal by 20 ~ 70 degree of angles, sealing
Device include the air storage vessel 5.3 sealed with 1 punched out of the main shaft of pump case 2 and be set to 5.3 top of air storage vessel can be close
The first sealing of air is sealed, main shaft 1 is interspersed in air storage vessel 5.3.First sealing passes through outer closure with the second sealing
5.4 connection of set, outer closure set 5.4 is interior to constitute air storage vessel 5.3, and the centrifugation entire pump housing of shurry pump is mounted on pump mounting bracket 11
On.First axle is sealed into magnet fluid sealing 5.2.1, and the second sealing is lip-type packing 5.1.1.
When pump machine work operation, the air of sealing position accumulates in air storage vessel 5.3, the lip-type packing of lower part
5.1.1 with the slurry liquid contacts of canned pump intracavitary, the magnet fluid sealing 5.2.1 on top is contacted with air, and seals closed gas.Pump
When operation, the air pressure being enclosed in air storage vessel 5.3 increases, and reaches the level with the pressure equipressure of pump cavity fluid,
Keep the pressure in outside in lip-type packing 5.1.1 in a basic balance, such rubber lip circle 5.1.1 is transported under the situation of no pressure difference
Row, rubber lip circle 5.1.1 will not be worn, and extend the service life of rubber lip circle 5.1.1.It is enclosed in air storage vessel 5.3
Pressed gas, actually play the role of protect the second sealing safe operation.Due to the first sealing sealing effect,
So that the pressure of fluid is substantially at equivalent state in the pressure of air and pump chamber in air storage vessel 5.3, so that the second axis
The pressure at both sides of sealing is impartial, and sealing is run under inside and outside isopiestic state, therefore can significantly extend the second sealing
Service life.
It is to increase rubber lip circle 5.1.1 and magnetic fluid group to make to deposit gas chamber to have enough air capacities, preferable method
Close the spacing of sealing 5.2.1.
In order to facilitate maintenance and installation, and it can make to store air in air storage vessel 5.3, preferable method is to exist pump machine angle mount
On holder 11（Such as Fig. 2）.
In order to be rinsed to a small amount of slurry in air storage vessel 5.3, in lip rubber seal 5.1.1 and magnet fluid sealing
5.2.1 the outer closure between, which is put on, opens up flushing hole 5.5（Such as Fig. 7）, with prevent lip-type packing 5.1.1 fail the case where when,
A small amount of slurry enters air storage vessel, achievees the purpose that cleaning.
In order to reduce the temperature that magnet fluid sealing 5.2.1 is generated at runtime, effective method is in magnet fluid sealing
5.2.1 wind wheel 7 is set on the main shaft in outside, the temperature of sealing position is dissipated with wind.
In order to prevent the corrosive gas corrosion magnet sealed in air storage vessel, influence sealing life, preferable method is
In the contact site of magnet sealed and gas, setting preserving and sealing circle 5.6（Such as Fig. 5,6）.
In order to save manufacturing cost, the magnetic sealing 5.2.3 with dynamic and static ring can also be used to substitute magnet fluid sealing（Such as figure
8、9）, this replacement is still within the covering scope of the present invention.
Embodiment 2：（Referring to Figure 10 ~ 12）
In order to facilitate the installation of Pump Suction Nozzle 12 can be arranged the sealing position in pump in centrifugal pump as described in embodiment one, and
Suction inlet threeway 12.1 is set.
Embodiment 3：A kind of centrifugation shurry pump with air shaft sealing device, including in pump case 2, pump cover 3, pump case 2
Impeller 4,1 one end of main shaft being connect with impeller 4,1 other end of main shaft are pierced by pump case 2 and are connect with motor 6, be arranged on main shaft 1 useful
In the shaft sealer that will be sealed between pump case 2 and main shaft 1, main shaft 1 is vertically arranged or inclining horizontal by 20 ~ 70 degree of angles
Tiltedly setting, shaft sealer include the air storage vessel 5.3 sealed with 1 punched out of the main shaft of pump case 2 and are set to air storage vessel
First sealing of the salable air on 5.3 tops, main shaft 1 are interspersed in air storage vessel 5.3.Be provided with outer closure set 5.4 with
First axle is tightly connected, and outer closure covers 5.4 bottom ends and the main shaft 1 of pump case 2 spreads out of hole sealed connection, is constituted in outer closure set 5.4
Air storage vessel, the height between the top and lowermost end of the air storage vessel 5.3 is 20cm, and the present embodiment is not provided with the second axis
Sealing can also realize the slurry not purpose in sealing contact with first axle, need to only ensure 5.3 height of air storage vessel in 5cm or more.
In order to cost-effective, in the above-described embodiments, the first sealing, can also in addition to selecting magnet fluid sealing 5.2.1
All kinds of sealing structures of the seal gas of price economy are selected to implement.
The sealing of all kinds of seal gas includes that modified F4 is sealed, and the machine envelope of resistance to air and energy dry run can be selected
With.
For the antiseptic property of elevator pump, pump is enable to convey the liquid of strong corrosive, effective method is will seal gas
One sealing is fabricated to the magnet fluid sealing 5.2.4 of the inside and outside magnetic steel structure of outer wrapping plastics, in this way can sealing gas,
It can prevent the corrosion of corrosive gas.
For the security performance of lift-off seal, preferable method is the setting signal sensor 13 in the gas storage chamber of sealing,
And couple with external alarm system, after having leakage to enter gas storage chamber, system will alarm, and maintenance personnel is reminded to prevent
Property repair.
In the present invention, the components such as the pump case 2, pump cover 3, impeller 4 and original technology make material without significant difference
It can be the produced with combination of metal, plastics, rubber or above-mentioned material.
The structure, the implementation that are enumerated in the embodiment of the present invention, only inventor are more preferably selected, and are not represented invention and are thought
Wanting the whole with scheme, other people replace such as useful work energy substitute equivalents sealing structure, material, as long as there is front and back two groups of sealings,
The perpendicular dress of pump machine or angle mount, there is a combination of these the basic inventive features of air storage vessel 5.3, all should the present invention coverage area it
It is interior, while by rights protection.
Claims (11)
1. a kind of centrifugation shurry pump with air shaft sealing device, including the impeller in pump case, pump cover, pump case and impeller company
The main shaft one end connect, the main shaft other end are pierced by pump case and are connect with motor, are provided on main shaft for will be close between pump case and main shaft
The shaft sealer of envelope, it is characterised in that main shaft is vertically arranged or being obliquely installed horizontal by 20 ~ 70 degree of angles, sealing
Device includes the air storage vessel sealed with the main shaft punched out of pump case and the salable air for being set to air storage vessel top
First sealing, main shaft are interspersed in air storage vessel.
2. a kind of centrifugation shurry pump with air shaft sealing device according to claim 1, it is characterised in that air storage is held
Bottom of chamber end is provided with the second sealing of sealing slurry.
3. a kind of centrifugation shurry pump with air shaft sealing device according to claim 1, it is characterised in that air storage is held
Height between the top and lowermost end of chamber is 5cm-30cm.
4. a kind of centrifugation shurry pump with air shaft sealing device according to claim 2 or 3, it is characterised in that first
Sealing is the mechanical seal with dynamic and static ring or magnet fluid sealing or the magnetic sealing with dynamic and static ring.
5. a kind of centrifugation shurry pump with air shaft sealing device according to claim 2, it is characterised in that the second axis
It is sealed into the sealing of rubber lip circle or the mechanical seal with dynamic and static ring or packing seal.
6. a kind of centrifugation shurry pump with air shaft sealing device according to claim 1, it is characterised in that first axle
It seals and is provided with wind wheel on the main shaft of top.
7. a kind of centrifugation shurry pump with air shaft sealing device according to claim 1, it is characterised in that air storage is held
Flushing hole is offered on chamber.
8. a kind of centrifugation shurry pump with air shaft sealing device according to claim 1, it is characterised in that first
Sealing bottom end is provided with preserving and sealing circle.
9. a kind of centrifugation shurry pump with air shaft sealing device according to claim 1, it is characterised in that air storage is held
Intracavitary is provided with signal transducer, the external alarm system of signal transducer.
10. a kind of centrifugation shurry pump with air shaft sealing device according to claim 1, it is characterised in that pump case
Sealing position is provided with Pump Suction Nozzle, and suction inlet threeway is arranged.
11. a kind of centrifugation shurry pump with air shaft sealing device according to claim 1, it is characterised in that on pump cover
It is provided with suction inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527619.6A CN108443169A (en) | 2018-05-29 | 2018-05-29 | A kind of centrifugation shurry pump with air shaft sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527619.6A CN108443169A (en) | 2018-05-29 | 2018-05-29 | A kind of centrifugation shurry pump with air shaft sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108443169A true CN108443169A (en) | 2018-08-24 |
Family
ID=63204936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810527619.6A Pending CN108443169A (en) | 2018-05-29 | 2018-05-29 | A kind of centrifugation shurry pump with air shaft sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108443169A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1614239A (en) * | 2004-08-09 | 2005-05-11 | 中国航天科技集团公司第一研究院第十五研究所 | Magnetic liquid sealing structure of cryogenic pump |
| CN101865142A (en) * | 2010-05-17 | 2010-10-20 | 张继华 | Multi-level submerged pump with leak detecting and alarming device |
| CN102536910A (en) * | 2012-02-17 | 2012-07-04 | 江苏克劳斯重工股份有限公司 | Pump gas-liquid sealing water outlet pipe |
| CN105864096A (en) * | 2016-05-18 | 2016-08-17 | 湖南南方长河泵业有限公司 | Singe-stage double-suction split case pump with good sealing performance |
| CN208311060U (en) * | 2018-05-29 | 2019-01-01 | 宜兴市宙斯泵业有限公司 | A kind of centrifugation shurry pump with air shaft sealing device |
-
2018
- 2018-05-29 CN CN201810527619.6A patent/CN108443169A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1614239A (en) * | 2004-08-09 | 2005-05-11 | 中国航天科技集团公司第一研究院第十五研究所 | Magnetic liquid sealing structure of cryogenic pump |
| CN101865142A (en) * | 2010-05-17 | 2010-10-20 | 张继华 | Multi-level submerged pump with leak detecting and alarming device |
| CN102536910A (en) * | 2012-02-17 | 2012-07-04 | 江苏克劳斯重工股份有限公司 | Pump gas-liquid sealing water outlet pipe |
| CN105864096A (en) * | 2016-05-18 | 2016-08-17 | 湖南南方长河泵业有限公司 | Singe-stage double-suction split case pump with good sealing performance |
| CN208311060U (en) * | 2018-05-29 | 2019-01-01 | 宜兴市宙斯泵业有限公司 | A kind of centrifugation shurry pump with air shaft sealing device |
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