CN2350566Y - Improved self-suction centrifugal pump - Google Patents
Improved self-suction centrifugal pump Download PDFInfo
- Publication number
- CN2350566Y CN2350566Y CN 98227920 CN98227920U CN2350566Y CN 2350566 Y CN2350566 Y CN 2350566Y CN 98227920 CN98227920 CN 98227920 CN 98227920 U CN98227920 U CN 98227920U CN 2350566 Y CN2350566 Y CN 2350566Y
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- China
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- pump
- chamber
- deposited
- centrifugal pump
- feed liquor
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Abstract
The utility model relates to an improvement on a self-priming centrifugal pump, which is formed by that the horizontal structure of a self-priming pump is changed into a vertical structure. The utility model is additionally provided with at least three communicated liquid storing chambers, and a pump body is arranged in each of the liquid storing chambers, so the liquid storing quantity of the self-priming pump is increased, and the work of fast liquid self-priming is obtained. Simultaneously, a pump cover is arranged outside and thus the pump cover is convenient to repair and replace.
Description
Model utility relates to a kind of improved self priming centrifugal pump.
Self priming centrifugal pump is owing to have self-absorption function, thereby is applied in many occasions.Existing self-priming pump generally mostly is horizontal type structure, and the outstanding liquid storage cylinder storage working solution in liquid entering hole by being higher than a center and S-shaped water inlet flow channel and pump housing bottom reaches the work of exhaust self-priming.The major defect of this structure of self-priming pump: the one, the working solution of storage is less relatively; thereby self-priming fluid speed is slow; and less liquid storage stability also is subjected to shaft sealing to influence fluctuation; add and shut down anti-siphon poor performance; the working liquid body that the siphon meeting that liquid entering hole produces during shutdown is directed at the pump stored is reduced easily or finds time; be unfavorable for self-priming pump shut down after fast self-priming fluid work once more, thereby restart poor performance.The 2nd, because pump stored working solution is few, fluid speed is slow, makes pump when long period self-priming starting operation, and less work liquid and the impeller friction that runs up produce heat working solution is heated up rapidly, influence the shaft seal life-span.The 3rd, because easily being directed at self-priming pump, the interior working solution deficiency of pump finds time to turn round, also can cause pump shaft mechanical seal to damage easily.
Secondly, fluid vortex and linear velocity are big between self-priming pump when work impeller and pump cover, the pump cover madial wall of impeller front side weares and teares easily, especially the pump cover inner wall abrasion is just faster when conveying contains the liquid of particle, the wearing and tearing of pump cover are directed at impeller and the pump cover gap increases, make that the pump volumetric efficiency loss is serious, working efficiency reduces.And existing self-priming pump is not easy to adjust after impeller and the pump cover wearing and tearing owing to structural reason, has to change whole pump, so pump machine whole service life is not long.
The purpose of model utility is to overcome the deficiency of above-mentioned prior art, provides a kind of shutdown back liquid storage many, and is difficult for leaking, and liquid storage is stable, helps the self priming centrifugal pump of the quick fluid work of self-priming.
Another purpose of model utility is to provide a kind of energy quick fluid work, and pump cover wearing and tearing back is easily adjusted, keeps in repair, changed, the self priming centrifugal pump that pump machine whole service life is long.
Model utility first purpose realizes, the main improvement is to change self-priming pump into vertical structure by horizontal type structure, and the liquid storage cylinder by setting up at least three connections and the pump housing is placed in the liquid storage cylinder, thereby increase self-priming pump self liquid storage amount, reach the work of fast self-priming fluid.Specifically, the model utility self priming centrifugal pump, comprise volute, pump shaft, impeller, pay impeller, centrifugal pump and pump inlet that pump cover is formed, pump discharge and liquid storage chamber, it is characterized in that said liquid storage chamber is two cylindrical shells that are set up in parallel, wherein at least one cylindrical shell is separated into two chambeies up and down by lateral partitions, epicoele is that fluid is deposited the chamber, its top is provided with pump discharge, cavity of resorption is that feed liquor is deposited the chamber, pump inlet is arranged at top, and another cylindrical shell is the pump work chamber, vertically is placed with centrifugal pump, described pump work chamber, feed liquor is deposited the chamber, fluid is deposited three chambeies, chamber and is communicated, and centrifugal pump intake is deposited the chamber with feed liquor and communicated.When self-priming pump starts to work, the impeller of high speed rotating is deposited the working solution of storing in the chamber (carrying air) with feed liquor and is inhaled into the pump housing by the centrifugal pump suction port, and through pump work chamber, fluid deposit chamber and/or feed liquor deposit the chamber cycle operation with pump in (especially feed liquor is deposited the chamber) and pump water inlet inner air tube discharge, reach the work of self-priming fluid.
Another purpose of model utility realizes that main the improvement is that centrifugal pump cover is designed to external, and promptly pump cover is located at outside the pump work chamber, is convenient to fine setting like this and changes pump cover.
For convenience of description, the said cylindrical shell of model utility comprises the casing or the cylindrical body of various geometrical shapies, but is excellent with cylindrical body especially.The mainly effect that communicates of said three chambeies is the reflux cycle that forms working solution in the self-priming exhaust process, can be to communicate in twos, can also be to communicate each other, and the backflow through hole should not be too big, in order to avoid influence the water outlet of pump.For being convenient for changing the transportation work medium, fluid is deposited the chamber and is provided with water filling hole, and feed liquor is deposited the chamber and is provided with drain, is convenient to refill or additional working solution and former working solution in the pump put, and two kinds of work liquid phases are mixed.Impact of water hammer in the water pump outlet pipe is provided with one way stop peturn valve in pump discharge when preventing that self-priming pump from shutting down.
Below in conjunction with the description of several mode of executions of model utility, further specify the working principle and the structure of model utility.
Fig. 1 is embodiment's 1 structural representation.
Fig. 2 is embodiment's 2 structural representations.
Fig. 3 is embodiment's 3 structural representations.
Fig. 4 is embodiment's 4 structural representations.
Fig. 5 is embodiment's 5 structural representations.
Embodiment 1: referring to Fig. 1, self priming centrifugal pump is by the plastic cylinder body 1 and 2 and perpendicular place the centrifugal pump of cylindrical shell 1 to form that is set up in parallel and is fixed on the same base plate 3.The pump cover 9 that centrifugal pump is then made by the corrosion resistant plastics, volute 4, impeller 5, form with the pump shaft 7 of anticorrosion cover 8, the impeller 6 of paying that is arranged at the top.Its middle cylinder body 1 is separated into the pump work chamber 1.1 of sealing and the supporting mass 1.2 of lower ending opening up and down by pump housing volute.Cylindrical shell 2 is divided into by horizontal inclined clapboard 11 that little last fluid is deposited chamber 2.1 and bigger following feed liquor is deposited chamber 2.2, the inclined clapboard lower bottom part has through hole 12 that two chambeies are communicated, fluid is deposited pump discharge 13 and the water filling hole 15 that band one way stop peturn valve 14 is arranged at top, chamber, feed liquor is deposited top, chamber pump inlet 16, and emptying drain opening 17 is arranged at the bottom.The pump work chamber is deposited the chamber by connecting tube 18 and fluid and is communicated, and Pump Suction Nozzle is deposited the chamber with feed liquor and communicated by connecting tube 10.
Work first or change fed sheet of a media, be transferred liquid and be injected into by water filling hole 15 and be stored in each cavity.During work, the impeller rotation of high speed rotating forms strong suction, the working solution that makes feed liquor deposit storage in the chamber 2.2 is inhaled into by pump suction pipe 10, enter the pump work chamber through the pump housing, decompression is overflowed the air that carries and is then accumulated in the liquid storage top and discharge by pump discharge, play the working solution of taking the gas effect through manage 18, aperture 12 backflows enter feed liquor and deposit the chamber.Moving in circles makes in the pump and the pump water inlet air in tube is discharged from, thereby reaches the work of self-priming fluid.Pair impeller 6 on top forms down pressure and effectively stops the pump chamber leaked liquid to keep certain pump pressure when pump work.During shutdown, one way stop peturn valve falls to closing in the pump discharge, can effectively prevent the impact of water hammer to pump.When changing transportation work liquid, only need Central Plains, liquid storage chamber working solution is passed through drain 17 emptying, inject new working solution by water filling hole 15 again and get final product.When volute wearing and tearing or change conveying different medium, only need unload pump cover 9 and adapter 10 by the bottom of opening, adjust or change pump cover.
Embodiment 2: referring to Fig. 2, as described in embodiment 1, will pay impeller 6 and move down and be installed in impeller 5 dorsal parts, and a Sealed casing pipe 19 is set outside axle, and be provided with K oblique crank Z sealing 20 between sleeve pipe lower end and pump shaft.This structure can prevent effectively that after shutdown intracavity liquid from leaking, and is particularly useful for the conveying liquid medium of high-order water inlet occasion.
Embodiment 3: referring to Fig. 3, as described above, cylindrical shell 1 is separated into two sealed cavities, and lower chamber constitutes pump admission chamber 1.2, and pump suction pipe 10 directly stretches into wherein imbibition, and admission chamber 1.2 is deposited chamber 2.2 with feed liquor and communicated by managing 22.Cylindrical shell adopts the steel body, inside lining anti-corrosive layer 21, and the steel lining anti-corrosion layer structure can bear higher working pressure, the high-capacity pump that the suitable for making quantity delivered is big.
Embodiment 4: referring to Fig. 4, as described above, two cylindrical shells are merged into the big casing of a rectangle, be divided into two rectangular box 1 arranged side by side and 2 by longitudinal baffle 25, the right side then casing 2 is separated out by horizontal baffle 26a and 26b that fluid is deposited chamber 2.1 and following feed liquor is deposited chamber 2.2.Pump work chamber 1.1 is deposited chamber 2.1 by aperture 23 and fluid and is communicated, and while pump work chamber 1.1 is also deposited chamber 2.2 by aperture 24 and feed liquor and communicated.Pump cover is external, and suction port is deposited chamber 2.2 with feed liquor and communicated by managing 10, the more convenient replacing of this form and adjust pump cover
Embodiment 5: referring to Fig. 5, as described above, cylindrical body 2 dividing plate transverse horizontal are provided with, and centrifugal pump is paid impeller 6 and is installed in the impeller dorsal part, has a sleeve pipe 19, sleeve pipe lower end that one outward extending annulus 27 is arranged outside the pump shaft 7.
Model utility is owing to increased working solution storage chamber; thereby increased self-priming pump and taken gas working solution memory space; make that shutdown back liquid storage is many; can seal; and be difficult for leaking; overcome existing self-priming pump effectively and shut down the few and unsettled shortcoming of back liquid storage, self-priming performance is good, helps the quick fluid work of self-priming.Siphon occurs and also still can maintain the more gas working solution of taking even shut down, even liquid inlet pipe gas leakage, the pump internal cause remains more liquid storage, and impeller is immersed in the liquid storage all the time and stone submersion is big, thereby can open drive and can not damage.The external pump cover makes things convenient for adjustment, the maintenance of pump cover especially and changes, and not only helps improving whole pump working life and raising pump efficiency, and especially contains granule medium liquid for conveying such as slip is convenient to adjust impeller and pump case gap.Change impeller and front pump cover, can realize that a pump uses more.Cylinder split tube structure is simple, easy processing, and load performance is good, suits to make big pump and help steel to mould compound.Because the pump chamber space is big, and pump chamber impurity passing capacity is strong, be more suitable in addition in the conveying that contains big impurity.
For convenience of description, said liquid of model utility and water are synonym.
Claims (7)
1, a kind of improved self priming centrifugal pump, comprise volute, pump shaft, impeller, pay impeller, centrifugal pump and pump inlet that pump cover is formed, pump discharge and liquid storage chamber, it is characterized in that said liquid storage chamber is two cylindrical shells that are set up in parallel, wherein at least one cylindrical shell is separated into two chambeies up and down by lateral partitions, epicoele is that fluid is deposited the chamber, its top is provided with pump discharge, cavity of resorption is that feed liquor is deposited the chamber, top is provided with pump inlet, another cylindrical shell is the pump work chamber, vertically be placed with centrifugal pump, described pump work chamber, feed liquor is deposited the chamber, fluid is deposited three chambeies, chamber and is communicated, and centrifugal pump intake is deposited the chamber with feed liquor and communicated.
2,, it is characterized in that said feed liquor deposits the chamber and deposit the chamber greater than fluid according to the described self priming centrifugal pump of claim 1.
3, according to the described self priming centrifugal pump of claim 1, it is characterized in that the oblique setting of said lateral partitions, have intercommunicating pore in the bottom.
4, according to the described self priming centrifugal pump of claim 1, it is characterized in that said fluid deposits the chamber and be provided with water filling hole, feed liquor is deposited the bottom, chamber and is provided with drain opening.
5,, it is characterized in that being provided with one way stop peturn valve in the said pump discharge according to the described self priming centrifugal pump of claim 1.
6, according to the described self priming centrifugal pump of claim 1, it is characterized in that said pair of impeller be located at the impeller dorsal part, pump shaft has a Sealed casing pipe outward, is provided with shaft sealing between Sealed casing pipe and pump shaft.
7,, it is characterized in that said cylindrical shell is a cylinder according to claim 1,2,3,4,5 or 6 described self priming centrifugal pumps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227920 CN2350566Y (en) | 1998-09-22 | 1998-09-22 | Improved self-suction centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227920 CN2350566Y (en) | 1998-09-22 | 1998-09-22 | Improved self-suction centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2350566Y true CN2350566Y (en) | 1999-11-24 |
Family
ID=33978145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98227920 Expired - Fee Related CN2350566Y (en) | 1998-09-22 | 1998-09-22 | Improved self-suction centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2350566Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277314A (en) * | 2013-05-29 | 2013-09-04 | 明光市留香泵业有限公司 | Welded inner mixed type self-priming pump |
-
1998
- 1998-09-22 CN CN 98227920 patent/CN2350566Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277314A (en) * | 2013-05-29 | 2013-09-04 | 明光市留香泵业有限公司 | Welded inner mixed type self-priming pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |