CN2311638Y - Ventical centrifugal pump with anti-leaking combination apparatus - Google Patents
Ventical centrifugal pump with anti-leaking combination apparatus Download PDFInfo
- Publication number
- CN2311638Y CN2311638Y CN 97221177 CN97221177U CN2311638Y CN 2311638 Y CN2311638 Y CN 2311638Y CN 97221177 CN97221177 CN 97221177 CN 97221177 U CN97221177 U CN 97221177U CN 2311638 Y CN2311638 Y CN 2311638Y
- Authority
- CN
- China
- Prior art keywords
- centrifugal pump
- pump
- chamber
- sliding bearing
- shaft end
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a vertical centrifugal pump with an anti-leaking combined apparatus, belonging to the category of fluid machinery. The utility model is characterized in that the two stages of impellers of the vertical centrifugal pump are provided with back blades; two hydrocyclones whose flow quantities are matched with each other and a pipeline which is matched with the overall system are arranged on the outer casing of the pump; a sliding bearing and the shaft end sealing of the centrifugal pump can be cleaned, lubricated and flushed by cleaning water with definite pressure and flow rate, and the cleaning water is pumped out by the centrifugal pump and is separated. The utility model improves the material used for the sliding bearing and the shaft end sealing and effectively enhances the sealing performance of the vertical centrifugal pump. The utility model is suitable for delivering liquid containing solid particles and has long service life and favorable anti-leaking effect.
Description
The utility model relates to a kind of vertical centrifugal pump that is suitable for carrying the seawater, fresh water or other similar liquids that contain solid particle, belongs to the fluid machinery category.
Silt content is higher in the water of Haicheng City, the most coastal waters of China, rivers and lakes, because a large amount of silt particle with in the water suction pump, causes the too early wearing and tearing of pump, seal failure is leaked serious with centrifugal pump for boats and ships, naval vessels.Up to the present the known measure of taking has: between the main impeller of pump and shaft end seal chamber back blades is set, form the auxiliary pump chamber or the main impeller of pump is designed to inversion impeller with back blade, enter the sealing friction pair position to stop or to reduce silt particle, thereby reduce the wearing and tearing of silt particle sealing pair; Or the material of the friction pair (as sliding bearing, shaft end seal) of pump carried out optimal selection, to improve the wear-resisting property of friction pair; Or a cyclone hydraulic separators is set on the pump housing water that enters the pump seal chamber is not only cleaned but also has certain pressure, in the hope of forming " water seal " prevention or reducing of the wearing and tearing of the interior backflow silt particle of pump to friction pair, improve sealing effect ... these taken separately individual event measures increase the anti-sand wear ability of pump, leak relatively and reduce, but its narrow limitation is all arranged.The vertical centrifugal pump of extensive use at present still exists the problem that anti-sand wear ability is undesirable, leakage is serious.
The purpose of this utility model, be to provide a kind of vertical centrifugal pump with anti-leak composite set, to be applicable to the conveying solids-laden fluid, the anti-sand wear ability of pump is increased greatly, sealing reliability improves conscientiously, the leakage phenomenon of pump is fundamentally solved, prolong the working life of pump, improve operator's working environment.
The purpose of this utility model is achieved in that referring to Fig. 1, Fig. 2, Fig. 3
1. in vertical centrifugal pump＜1〉housing＜4 two left-handed liquid/gas separator＜5 that flow is complementary go up to be installed, dextrorotation liquid/gas separator＜11 the and pipeline that is complementary with whole system, wherein left-handed liquid/gas separator muddy water introduction pipeline＜6〉with centrifugal pump＜1 one-level impeller delivery chamber＜3-1 be connected, left-handed liquid/gas separator clear water output pipe＜9〉with sliding bearing＜8 of centrifugal pump bearing chamber＜8-1 be connected left-handed liquid/gas separator secondary muddy water output pipe＜10 with the one-level impeller suction chamber＜3-3 of centrifugal pump be connected; Dextrorotation liquid/gas separator muddy water introduction pipeline＜12〉with the sencond stage impeller delivery chamber＜2-1 of centrifugal pump be connected, dextrorotation liquid/gas separator clear water output pipe＜13〉with shaft end seal＜15 of centrifugal pump closed chamber＜15-1 be connected dextrorotation liquid/gas separator secondary muddy water output pipe＜14 with the sencond stage impeller suction chamber＜2-3 of centrifugal pump be connected.
2. with one-level impeller＜3 of centrifugal pump 〉, sencond stage impeller＜2 on all design back blade＜2-4 is arranged,＜3-4.
3. with vertical centrifugal pump＜1〉sliding bearing＜8 friction pair change tetrafluoro Cuprum alloy-bronze into by the rubber-bronze material of general employing, with shaft end seal＜15〉change the mechanical seal that dynamic and static ring material is the Carborundum material into by the soft packing seal of general employing.
Design concept basic principle of the present utility model is, pass through accurate Calculation, adopt appropriate cyclone hydraulic separators of a pair of coupling and supporting pipeline thereof, make the sliding bearing of vertical centrifugal pump indoor and shaft end seal is indoor can only enter an amount of clean water with certain pressure, not only can cool off, lubricate, wash sliding bearing pair and shaft end seal pair, but also can form " water seal ", stop the muddy water of the both stage impellers delivery chamber extrusion of pump to be back to the both stage impellers wheel hub and to enter bearing chamber and shaft end seal chamber.Pressure, flow in order to ensure the clean water that enters sliding bearing chamber and shaft end seal chamber are appropriate, and the utility model has also all designed back blade on the both stage impellers blade of vertical centrifugal pump.
Concrete workflow is as described below: left-handed liquid/gas separator＜5〉by muddy water introduction pipeline＜6 from vertical centrifugal pump＜1 one-level impeller delivery chamber＜3-1 after the high pressure muddy water that contains silt particle introduced passes through centrifugation, the clean water that will have certain pressure again is by clean water output pipe＜9〉send into the sliding bearing chamber＜8-1 of centrifugal pump 〉, to sliding bearing＜8〉cool off, lubricate, wash.Owing to send into sliding bearing chamber＜8-1〉the pressure of clean water greater than one-level impeller delivery chamber＜3-1 from pump be back to one-level impeller hub＜3-5 contain the pressure of sand water, therefore can stop one-level impeller hub＜3-5〉muddy water of locating to contain silt particle enters sliding bearing chamber＜8-1 〉, thereby can keep the cleaning operating mode of sliding bearing; Meanwhile left-handed liquid/gas separator＜5〉and will separate after the secondary muddy water that contains silt particle by secondary muddy water output pipe＜10 send the one-level impeller suction chamber＜3-3 of pump back to, finish left the circulation.And dextrorotation liquid/gas separator＜11 by its muddy water introduction pipeline＜12 from vertical separate pump＜1 sencond stage impeller delivery chamber＜2-1 the high pressure water that contains silt particle introduced is through after separating, by clear water output pipe＜13〉clean water that will have a certain pressure sends into the shaft end seal chamber＜15-1 of pump〉in, sealing friction pair is cleaned and cooled off, since send into the shaft end seal chamber the pressure of clean water greater than sencond stage impeller delivery chamber＜2-1 from vertical centrifugal pump be back to sencond stage impeller wheel hub＜2-5 the pressure that contains silt water, therefore the muddy water that can stop the sencond stage impeller wheel hub to contain silt particle enters shaft end seal chamber＜15-1〉in; Dextrorotation liquid/gas separator＜11 meanwhile〉the secondary muddy water that contains silt particle after will separating is by muddy water output pipe＜14〉send the sencond stage impeller suction chamber＜2-3 of pump back to〉in, finish right circulation.And have one-level impeller＜3 of back blade, sencond stage impeller＜2 can utilize centrifugal force that the pump rotation produced with one-level impeller pump chamber＜3-2 and sencond stage impeller pump chamber＜2-2 interior liquid gets rid of the one-level impeller delivery chamber＜3-1 to pump respectively and sencond stage impeller delivery chamber＜2-1, can reduce the pressure of the muddy water of the one-level impeller hub place of pump and sencond stage impeller wheel hub so on the one hand conscientiously, can stop or reduce muddy water that centrifugal pump pumps on the other hand and be back in two pump chambers from two delivery chambers of pump.
The utility model has the advantages that, owing to taked above-mentioned aggregate measures, by the anti-leak composite set sliding bearing friction pair of centrifugal pump and shaft end seal friction pair are cooled off conscientiously with the clean water with certain pressure after the process separation on the one hand, lubricated, flushing, improve the material that friction pair is selected for use on the other hand, the sliding bearing and the shaft end seal lubricating condition of centrifugal pump are improved, sealing effect is good, anti-sand wear ability improves greatly, reached the life-span prolongation that makes vertical centrifugal pump, the purpose that functional reliability strengthens, improved operator's working environment simultaneously, be suitable for applying.
Accompanying drawing
Fig. 1 the utility model vertical centrifugal pump sectional drawing
Fig. 2 the utility model vertical centrifugal pump, cyclone hydraulic separators, supporting pipeline side view
Fig. 3 the utility model fundamental diagram
Embodiment
：＜1〉＜2〉＜2-1〉＜2-2〉＜2-3〉＜2-4〉＜2-5〉＜3〉＜3-1〉＜3-2〉＜3-3〉＜3-4〉＜3-5〉＜4〉＜5〉＜6〉＜7〉＜8〉＜8-1〉＜9〉＜10〉＜11〉＜12〉＜13〉＜14〉＜15〉＜15-1〉＜16〉＜17〉。
Referring to Fig. 1, be the utility model vertical centrifugal pump sectional drawing.
Vertical centrifugal pump＜1〉by one-level impeller＜3, sencond stage impeller＜2, sliding bearing＜8, shaft end seal＜15, running shaft＜7, rolling bearing group＜16, motor rotation axis＜17, housing＜4 etc. form.Centrifugal pump＜1〉both stage impellers＜2,＜3 blade all have back blade＜2-4,＜3-4.
Referring to Fig. 2, be the utility model vertical centrifugal pump, cyclone hydraulic separators, supporting pipeline side view.
Referring to Fig. 3, be the utility model fundamental diagram.
Left-handed liquid/gas separator＜5〉muddy water introduction pipeline＜6 with centrifugal pump＜1 one-level impeller delivery chamber＜3-1 be connected; Its clear water output pipe＜9〉with centrifugal pump＜1 sliding bearing＜8 bearing chamber＜8-1 be connected; Its secondary muddy water output pipe＜10〉with the one-level impeller suction chamber＜3-3 of centrifugal pump be connected.Dextrorotation liquid/gas separator＜11〉muddy water introduction pipeline＜12 with the sencond stage impeller delivery chamber＜2-1 of centrifugal pump be connected; Its clear water output pipe＜13〉with shaft end seal＜15 of centrifugal pump closed chamber＜15-1 be connected; Its secondary muddy water output pipe＜14〉with the sencond stage impeller suction chamber＜2-3 of centrifugal pump be connected.
Left-handed liquid/gas separator＜5〉by muddy water introduction pipeline＜6 from vertical centrifugal pump＜1 one-level impeller delivery chamber＜3-1 the high pressure muddy water that contains silt particle introduced is through after the centrifugation, the clean water that will have certain pressure again is by clean water output pipe＜9〉send into the sliding bearing chamber＜8-1 of centrifugal pump 〉, to sliding bearing＜8〉cool off, lubricate, wash.Owing to send into sliding bearing chamber＜8-1〉the pressure of clean water greater than one-level impeller delivery chamber＜3-1 from pump be back to one-level impeller hub＜3-5 contain the pressure of sand water, therefore can stop one-level impeller hub＜3-5〉muddy water of locating to contain silt particle enters sliding bearing chamber＜8-1 〉, thereby can keep the cleaning operating mode of sliding bearing; Meanwhile left-handed liquid/gas separator＜5〉and will separate after the secondary muddy water that contains silt particle by secondary muddy water output pipe＜10 send the one-level impeller suction chamber＜3-3 of pump back to, finish left the circulation.And dextrorotation liquid/gas separator＜11 by its muddy water introduction pipeline＜12 from vertical centrifugal pump＜1 sencond stage impeller delivery chamber＜2-1 the high pressure water that contains silt particle introduced is through after separating, by clear water output pipe＜13〉clean water that will have a certain pressure sends into the shaft end seal chamber＜15-1 of pump〉in, sealing friction pair is cleaned and cooled off, because the pressure of clean water of sending into the shaft end seal chamber is greater than the sencond stage impeller delivery chamber＜2-1 from vertical centrifugal pump〉be back to sencond stage impeller wheel hub＜2-5 the pressure that contains sand water, therefore the muddy water that can stop the sencond stage impeller wheel hub to contain silt particle enters shaft end seal chamber＜15-1〉in; Dextrorotation liquid/gas separator＜11 meanwhile〉the secondary muddy water that contains silt particle after will separating is by muddy water output pipe＜14〉send the sencond stage impeller suction chamber＜2-3 of pump back to〉in, finish right circulation.
One-level impeller＜3 that have back blade 〉, sencond stage impeller＜2 can utilize centrifugal force that pump rotation produced with pump chamber＜3-2 and＜2-2 interior liquid gets rid of the delivery chamber＜3-1 to pump respectively and＜2-1, can reduce the one-level impeller hub＜3-5 of pump so on the one hand conscientiously〉locate and sencond stage impeller wheel hub＜2-5 the pressure of the muddy water located, can stop or reduce muddy water that centrifugal pump pumps two delivery chamber＜3-1 on the other hand from pump 〉,＜2-1〉be back to two pump chamber＜3-2 〉,＜2-2〉in.
Sliding bearing of the present utility model＜8〉the poly-tetrafluoro Cuprum alloy of material selection, shaft end seal＜15〉mechanical seal of all adopting the Carborundum material to form by dynamic and static ring.
Claims (5)
1. vertical centrifugal pump＜1 with anti-leak composite set 〉, by one-level impeller＜3 〉, sencond stage impeller＜2, sliding bearing＜8, shaft end seal＜15, running shaft＜7, rolling bearing＜16, motor rotation axis＜17, housing＜4 etc. form, it is characterized in that, in vertical centrifugal pump＜1〉frame on left and right cyclone hydraulic separators＜5 also are installed,＜11 and supporting pipeline＜6,＜9,＜10,＜12,＜13,＜14.
2. the vertical centrifugal pump with anti-leak combination dress as claimed in claim 1 is characterized in that said left-handed liquid/gas separator＜5〉muddy water introduction pipeline＜6 with centrifugal pump＜1 one-level impeller delivery chamber＜3-1 be connected; Its clear water output pipe＜9〉with centrifugal pump＜1 sliding bearing＜8 bearing chamber＜8-1 be connected; Its secondary muddy water output pipe＜10〉with the one-level impeller suction chamber＜3-3 of centrifugal pump be connected.
3. the vertical centrifugal pump with anti-leak composite set as claimed in claim 1 is characterized in that, said dextrorotation liquid/gas separator＜11〉muddy water introduction pipeline＜12 with the sencond stage impeller delivery chamber＜2-1 of centrifugal pump be connected; Its clear water output pipe＜13〉with shaft end seal＜15 of centrifugal pump closed chamber＜15-1 be connected; Its secondary muddy water output pipe＜14〉with the sencond stage impeller suction chamber＜2-3 of centrifugal pump be connected.
4. as claim 1,2 or 3 described vertical centrifugal pumps, it is characterized in that said one-level impeller＜3 with anti-leak composite set 〉, sencond stage impeller＜2 on all have back blade＜3-4,＜2-4.
5. the vertical centrifugal pump with anti-leak composite set as claimed in claim 1, it is characterized in that, said sliding bearing＜8〉material be poly-tetrafluoro Cuprum alloy, said shaft end seal＜15 mechanical seal of all adopting the Carborundum material to form by dynamic and static ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97221177 CN2311638Y (en) | 1997-07-16 | 1997-07-16 | Ventical centrifugal pump with anti-leaking combination apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97221177 CN2311638Y (en) | 1997-07-16 | 1997-07-16 | Ventical centrifugal pump with anti-leaking combination apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2311638Y true CN2311638Y (en) | 1999-03-24 |
Family
ID=33936640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97221177 Expired - Lifetime CN2311638Y (en) | 1997-07-16 | 1997-07-16 | Ventical centrifugal pump with anti-leaking combination apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2311638Y (en) |
-
1997
- 1997-07-16 CN CN 97221177 patent/CN2311638Y/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101644269A (en) | High pressure centrifugal pump for desalinizing sea water | |
| CN1916426A (en) | Intelligent pump set matched to new sewage treatment facility | |
| US4381127A (en) | Sealed bearing | |
| CN220956214U (en) | High-efficient filter that absorbs water that can go up and down voluntarily suitable for horizontal well open pump | |
| CN106015080B (en) | Wear-resisting type sealing device for submersible sewage pump | |
| CN2311638Y (en) | Ventical centrifugal pump with anti-leaking combination apparatus | |
| CN205243860U (en) | Double suction helico centrifugal pump | |
| CN108343615A (en) | A kind of methanol feed pump | |
| CN102022384B (en) | Hard alloy sliding bearing water-diversion cooling and lubrication system of mine submersible pump | |
| CN1657785A (en) | Double-runner centrifugal pump for transfering submarine mineral substance | |
| CN212337647U (en) | Wear-resistant multistage centrifugal pump | |
| CN108869306A (en) | Horizontal double sucking pump is opened in double containment level | |
| CN213331547U (en) | Hydraulic submersible spiral centrifugal pump | |
| CN200943586Y (en) | Matched intelligence set of sewage treatment device | |
| CN201241841Y (en) | Horizontal non-leakage strong self-priming pump | |
| CN108825506A (en) | It is not easy to be washed in the level of abrasion and opens horizontal double sucking pump | |
| CN207470489U (en) | Vertical multi-stage wear resistant submerged pump | |
| CN206448959U (en) | A kind of Pendular ring type vacuum aided is without blocking high priming stroke self priming pump | |
| CN217713057U (en) | Novel shaft seal device for energy-saving ore pulp pump | |
| CN213016812U (en) | Submerged pump for conveying medium containing solid particles | |
| CN208669621U (en) | A kind of air-conditioning duct pump | |
| CN114738286B (en) | Inorganic sealing anhydrous cooling device's energy-conserving pulp pump of doublestage double suction that potassium chloride medium used | |
| CN211692836U (en) | Novel non-blocking sewage pump | |
| CN108343614A (en) | A kind of efficient sealed methanol oil pump | |
| CN217814009U (en) | Large-diameter double-cavity oil chamber submersible sewage pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |