CN205277837U - Single stage centrifugal pump - Google Patents
Single stage centrifugal pump Download PDFInfo
- Publication number
- CN205277837U CN205277837U CN201520961072.2U CN201520961072U CN205277837U CN 205277837 U CN205277837 U CN 205277837U CN 201520961072 U CN201520961072 U CN 201520961072U CN 205277837 U CN205277837 U CN 205277837U
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- CN
- China
- Prior art keywords
- pump
- pump case
- impeller
- water
- stage centrifugal
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- 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 - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a single stage centrifugal pump, including the pump case, the pump shaft, the bottom valve, the control valve, pipe and pressure pipe absorb water, be equipped with extrusion mouth and sunction inlet on the pump case, it is connected with the sunction inlet to absorb water tub one side, tub opposite side that absorbs water is connected with the bottom valve, the pressure pipe passes through the control valve and presses the exit linkage, still be equipped with the impeller in the pump case, impeller circumference equipartition has three curved curved's blade, the one end with the pump shaft is established to the impeller cover, the pump shaft other end passes the pump case and links to each other with outside power device, it irritates water funnel still to be equipped with on the pump case, irritate water funnel and the pump case communicates with each other. The utility model discloses a beneficial effect is: irritate water funnel through setting up on the pump case, make the centrifugal pump start -up preceding with regard to the full of liquid through irritating water funnel to avoided traditional centrifugal pump before the start -up owing to have the air in the pump air bind phenomenon that results in.
Description
Technical field
The utility model relates to impeller pump, is specially a kind of single-stage centrifugal pump.
Background technology
Impeller pump utilizes impeller to rotate and make liquid generation centrifugal motion carry out work. Impeller pump makes pump shaft impeller and liquid do high speed rotary motion by motor when working, and liquid generation centrifugal motion, is thrown toward impeller outer edge, and the runner through pump case flows into the setting-out pipeline of water pump.
When conventional centrifugal pump starts, pump internal memory has air, owing to density of air is very low, the centrifugal force produced after rotation is little, thus the low pressure that impeller central district is formed is not enough to, in the liquid suction pump in storage groove, though starting impeller pump can not carry liquid, this kind of phenomenon is called air sinuses.
Practical novel content
The utility model is intended to provide a kind of single-stage centrifugal pump that can solve the air sinuses phenomenon that impeller pump causes before activation owing to there is air in pump.
Single-stage centrifugal pump in this scheme, comprise pump case, pump shaft, bottom valve, control valve, water absorption tube and setting-out pipe, pump case is provided with and extrudes mouth and suction port, water absorption tube side is connected with suction port, another side of water absorption tube is connected with bottom valve, setting-out pipe is connected with extrusion mouth by control valve, impeller also it is provided with in pump case, impeller circumference is evenly equipped with the blade of three bending tablet shapes, impeller set is located at one end of pump shaft, the pump shaft the other end is through pump case and is connected with external motive device, and pump case is also provided with funnel of pouring water, and pours water funnel and pump case communicates.
The principle of this scheme is: before impeller pump starts, in pump case, full liquid is filled by funnel of pouring water, now start external motive device, pump shaft will drive the blade rotary on pump impeller under the effect of external motive device, fill liquid between the blades also to rotate with blade, under the influence of centrifugal force, liquid is got rid of to blade periphery along the runner between blade from impeller central, and enter setting-out pipe through pump case runner from extrusion mouth with very high speed, under the effect of bottom valve and control valve, impeller pump can ensure that liquid flows by set direction, thus by Liquid transfer to the occasion needed.
The useful effect of this scheme is: by arranging funnel of pouring water on pump case, is just full of liquid, thus avoids the air sinuses phenomenon that conventional centrifugal pump causes owing to there is air in pump before activation before impeller pump being started by funnel of pouring water.
Further, pump case is the snail shape shell that cross section increases gradually, after liquid enters the snail shape runner of pump case with very high speed, owing to the cross section of runner increases gradually, the kinetic energy of high-speed liquid major part will turn into static energy, thus make liquid can enter setting-out pipe with higher pressure from extrusion mouth, it is to increase the reliability of impeller pump work.
Further, in order to prevent the solid impurity in liquid from entering in water absorption tube, bottom valve place is provided with the suck filter screen preventing solid matter from entering water absorption tube.
Further, pump shaft is connected with external motive device by spline, spline joint dependable performance and convenient disassembly.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the front view of the utility model embodiment.
Embodiment
Below by embodiment, the utility model is described in further detail:
Reference numeral in Figure of description comprises: pump case 1, pump shaft 2, impeller 3, water absorption tube 4, setting-out pipe 5, bottom valve 6, control valve 7, funnel 8 of pouring water, pump seat 9.
Embodiment is substantially as shown in Figures 1 and 2: single-stage centrifugal pump, comprise pump case 1, pump case 1 is the snail shape that a cross section increases gradually, it is provided with suction port on the downside of pump case 1, suction port place is connected with water absorption tube 4, bottom valve 6 it is connected with on the downside of water absorption tube 4, it is provided with extrusion mouth on pump case 1 upper strata, extrude mouth and it is connected with setting-out pipe 5 by control valve 7, bottom valve 6 and control valve 7 are for controlling the flow direction of liquid, also being provided with one layer of suction rate net on bottom valve 6, suction rate net can prevent the solid impurity in liquid from entering and damage impeller 3 in impeller pump, has influence on the normal operation of impeller pump.
Being provided with funnel 8 of pouring water on the upside of pump case 1, funnel 8 of pouring water communicates with pump case 1. On the downside of pump case 1, axially symmetrical position is provided with two pump seats 9, and pump seat 9 is fixed together by screw and external rack.
It is provided with impeller 3 in the snail shape space of pump case 1, impeller 3 is fixedly connected with the left end of pump shaft 2, the present embodiment adopts the mode of connection of impeller 3 with pump shaft 2 shrink-fit, it is evenly equipped with three blades in impeller 3 circumference, blade is certain bending, three blade outer profile sizes are positioned at circumferentially same, owing to drive liquid is done high speed rotating by impeller 3 and blade, simultaneously liquid is directly and impeller 3 and blade contact, therefore when selecting the material of impeller 3 and blade, except the physical strength under being considered centrifugal action, also to be considered the wear-resisting of material and corrosion resistance nature, current impeller 3 and blade many employings cast iron, cast steel or bronze are made, in the present embodiment, impeller 3 and blade all adopt bronze material.
Left end and impeller 3 shrink-fit of pump shaft 2 link together, hole on pump case 1 on the right side of impeller 3 is also stretched out outside pump case 1, the part stretched out outside pump case 1 at pump shaft 2 is provided with spline, pump shaft 2 is connected with external motive device by spline, the present embodiment adopt AC induction motor be connected with pump shaft 2, due to pump shaft 2 as pump shaft 2 while of elongated shape operationally by high speed rotating, therefore pump shaft 2 should have enough twisting strengths and enough rigidity, and its amount of deflection is also no more than permissible value.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this. Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, it is also possible to make some distortion and improvement; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability that the utility model is implemented. The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in specification sheets etc. record the content that may be used for explaining claim.
Claims (4)
1. a single-stage centrifugal pump, it is characterized in that, comprise pump case, pump shaft, bottom valve, control valve, water absorption tube and setting-out pipe, described pump case is provided with and extrudes mouth and suction port, described water absorption tube side is connected with described suction port, another side of described water absorption tube is connected with described bottom valve, described setting-out pipe is connected with described extrusion mouth by described control valve, impeller also it is provided with in described pump case, impeller circumference is evenly equipped with the blade of three bending tablet shapes, described impeller set is located at one end of described pump shaft, the described pump shaft the other end is through described pump case and is connected with external motive device, described pump case is also provided with funnel of pouring water, described pour water funnel and described pump case communicates.
2. single-stage centrifugal pump according to claim 1, it is characterised in that: described pump case is the snail shape shell that cross section increases gradually.
3. single-stage centrifugal pump according to claim 2, it is characterised in that: described bottom valve place is provided with the suck filter screen preventing solid matter from entering water absorption tube.
4. single-stage centrifugal pump according to claim 3, it is characterised in that: described pump shaft is connected with external motive device by spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520961072.2U CN205277837U (en) | 2015-11-28 | 2015-11-28 | Single stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520961072.2U CN205277837U (en) | 2015-11-28 | 2015-11-28 | Single stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205277837U true CN205277837U (en) | 2016-06-01 |
Family
ID=56062417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520961072.2U Expired - Fee Related CN205277837U (en) | 2015-11-28 | 2015-11-28 | Single stage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205277837U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106799985A (en) * | 2017-01-24 | 2017-06-06 | 南京南汽畅通公路机械有限公司 | A kind of hydraulic power drainage system for water drainage car of meeting an urgent need |
| CN117738939A (en) * | 2024-02-20 | 2024-03-22 | 毅飞泵业（福州）有限公司 | Single-stage end suction centrifugal pump capable of reducing efficiency loss |
-
2015
- 2015-11-28 CN CN201520961072.2U patent/CN205277837U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106799985A (en) * | 2017-01-24 | 2017-06-06 | 南京南汽畅通公路机械有限公司 | A kind of hydraulic power drainage system for water drainage car of meeting an urgent need |
| CN117738939A (en) * | 2024-02-20 | 2024-03-22 | 毅飞泵业（福州）有限公司 | Single-stage end suction centrifugal pump capable of reducing efficiency loss |
| CN117738939B (en) * | 2024-02-20 | 2024-05-03 | 毅飞泵业（福州）有限公司 | Single-stage end suction centrifugal pump capable of reducing efficiency loss |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20161128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |