CN203670224U - Self-priming device of centrifugal pump - Google Patents
Self-priming device of centrifugal pump Download PDFInfo
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- CN203670224U CN203670224U CN201420056129.XU CN201420056129U CN203670224U CN 203670224 U CN203670224 U CN 203670224U CN 201420056129 U CN201420056129 U CN 201420056129U CN 203670224 U CN203670224 U CN 203670224U
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Abstract
The utility model discloses a self-priming device of a centrifugal pump. The self-priming device of the centrifugal pump comprises the centrifugal pump, a water storage tank, a water inlet pipe, a U-shaped pipe and a water outlet pipe, wherein a water injection valve is arranged at the top end of the water storage tank, a water outlet of the bottom end of the water storage tank is communicated with an inlet of the centrifugal pump, the water inlet pipe is vertically arranged, a water inlet of the lower end of the water inlet pipe is used for being communicated with an external water source, a water inlet of the U-shaped pipe is communicated with a water outlet of the upper end of the water inlet pipe, the water outlet is communicated with the top end of the water storage tank, and the top of the U-shaped pipe is higher than the highest water storage level of the water storage tank; a water inlet of the water outlet pipe is communicated with an outlet of the centrifugal pump, and a water outlet of the water outlet pipe is higher than the highest water storage level of the water storage tank. The self-priming device of the centrifugal pump is simple and reasonable in structure, and by arranging the water storage tank with a certain vacuum degree, the centrifugal pump has a function of self-priming and convenience in using and mounting and can substitute for an outer or inner mixing type centrifugal pump with the self-priming function, and using cost is reduced.
Description
Technical field
The utility model relates to centrifugal pump field, particularly a kind of Self-priming device of centrifugal pump.
Background technique
At present, Ordinary Centrifugal Pumps is utilize vane rotary and make the centrifugal force of water generates carry out work.Water pump, before startup, must make to be full of water in pump case and suction sleeve, and then starting electrical machinery makes pump shaft impeller and water do high speed rotary motion, and water, under the effect of centrifugal force, is thrown toward impeller outer edge, flows into the setting-out pipeline of water pump through the runner of volute pump case.
But conventional Ordinary Centrifugal Pumps does not have suction capacity, to give to use to install and bring inconvenience, and there is external mixture type and the internal-mixing centrifugal pump that suction capacity centrifugal pump is particular design and manufacture, this centrifugal pump cost is higher.
Model utility content
The utility model is in order to overcome defect in above-mentioned prior art, provides a kind of simple and reasonable, has suction capacity, easy to install and use, the Self-priming device of centrifugal pump that cost is low.
For achieving the above object, provide a kind of Self-priming device of centrifugal pump according to the utility model, comprising: centrifugal pump; Water tank, its top is laid with water injection valve, and bottom water outlet is communicated with the entrance of described centrifugal pump; Intake pipe, vertically arranges, and its lower end water intake is for being communicated with external water source; U-shaped pipe, its water intake is communicated with the upper end water outlet of described intake pipe, and the water outlet of this U-shaped pipe is communicated to water tank top, and makes described U-shaped pipe top higher than the highest retaining face of water tank; Outlet pipe, the water intake of this outlet pipe is communicated with described centrifugal delivery side of pump, and the water outlet height of this outlet pipe is higher than the highest retaining face of water tank.
In technique scheme, water injection valve is ball valve.
In technique scheme, the volume of water tank is more than the twice of described intake pipe and U-shaped pipe total measurement (volume).
In technique scheme, outlet pipe is L-type.
In technique scheme, L-type outlet pipe comprises: end section lateral stub and longitudinally long tube, and the water intake of this end section lateral stub is communicated with centrifugal delivery side of pump, and longitudinally long tube is vertically laid.
Compared with prior art, the utlity model has following beneficial effect: this Self-priming device of centrifugal pump is simple and reasonable, by the water tank that forms certain vacuum degree is set, make centrifugal pump there is suction capacity, improved the property easy to install and use of centrifugal pump, can replace external mixture type or the internal-mixing centrifugal pump with suction capacity, reduce user cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of Self-priming device of centrifugal pump of the present utility model;
Description of reference numerals:
1-intake pipe, 2-U type pipe, 3-water tank, 4-centrifugal pump, 5-outlet pipe, 6-pressure-equalizing pipe, 7-ball valve.
Embodiment
Below in conjunction with accompanying drawing, an embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subject to the restriction of embodiment.It will be appreciated that, mentioned in following mode of execution of the present utility model " on ", D score, " left side ", " right side ", " front " and " reverse side " be all take the direction shown in each figure as benchmark, these words that are used for limiting direction are only used to be convenient to explanation, do not represent the restriction to the concrete technological scheme of the utility model.
Self-priming device of centrifugal pump of the present utility model is simple and reasonable, by the water tank that forms certain vacuum degree is set, make centrifugal pump there is suction capacity, improved the property easy to install and use of centrifugal pump, can replace external mixture type or the internal-mixing centrifugal pump with suction capacity, reduce user cost.
Detailed description by way of example but unrestriced mode has illustrated the disclosure, should be understood that the realization that can be combined by independent realization or with other aspects in various aspect of the present disclosure below.This specification clearly enables those skilled in the art to manufacture and uses us to believe for new and non-obvious improvement, describe some embodiments, alternative, modification, alternative and system applies, comprised the current best mode that is considered to carry out the model utility principle of describing in this specification.In the time describing element or feature and/or embodiment, be intended to expression titled with " one " " one " " be somebody's turn to do " and " described " and there are one or more in element or feature.Term " comprises " that " comprising " and " having " is intended to is comprising property, and also has extra element or feature beyond being illustrated in those specifically described elements or feature.
As shown in Figure 1, the concrete structure of this Self-priming device of centrifugal pump comprises: intake pipe 1, U-shaped pipe 2, water tank 3, centrifugal pump 4 and outlet pipe 5, and be laid in the pressure-equalizing pipe 6 between U-shaped pipe 2 and outlet pipe 5 and be laid in the ball valve 7 on water tank 3.Open ball valve 7 and fill liquid in water tank, then close the rear startup centrifugal pump 4 of ball valve 7, centrifugal pump 4 is discharged water tank 3 liquid and is caused internal gas expansion to form certain vacuum degree, now intake pipe 1 starts inspiration outside liquid and adds to water tank 3, and at this moment gas-liquid mixed completes until pump working is normal in water tank.Pressure-equalizing pipe 6 has a small amount of liquid to be expelled back into U-shaped pipe 2 from outlet pipe 5 in pump working process, plays the pressure between balance outlet and entrance in the time that water pump quits work, and prevents from occurring negative pressure of vacuum because intake pipe is emptying by water tank suck-back out.This Self-priming device of centrifugal pump is by arranging the water tank that forms certain vacuum degree, makes centrifugal pump have suction capacity, improved the property easy to install and use of centrifugal pump.
Intake pipe 1 vertically arranges, lower end water intake is for being communicated with external water source, upper end water outlet is communicated with U-shaped pipe 2 water intakes of laterally laying, the water outlet of U-shaped pipe 2 is communicated to water tank 3 tops, and make U-shaped pipe top higher than the highest retaining face of water tank, in addition, in order to guarantee that water tank produces enough degree of vacuum, the volume of water tank 3 is more than the twice of intake pipe 1 and U-shaped pipe 2 total measurement (volume)s.
Water tank 3 tops are also laid with ball valve 7, for controlling the switching of water tank 3 water filling holes.The bottom water outlet of water tank 3 is communicated with the entrance of centrifugal pump 4, and the outlet of centrifugal pump 4 is communicated with the water intake of outlet pipe 5.
Outlet pipe 5 is L-type, and the water intake of end section lateral stub is communicated with the outlet of centrifugal pump 4, and longitudinally long tube is vertically laid, and its water outlet height is not less than the highest retaining face of water tank 3.
One end of pressure-equalizing pipe 6 is communicated with the middle part of U-shaped pipe 2, the other end is communicated with outlet pipe 5, in pump working process, there is a small amount of liquid to be expelled back into U-shaped pipe 2 from outlet pipe 5, in the time that water pump quits work, play the pressure between balance outlet and entrance, prevent from occurring negative pressure of vacuum because intake pipe is emptying by water tank suck-back out.
While use first, first open ball valve 7 and fill liquid in water tank 3, can start centrifugal pump 4 after then closing ball valve 7.Centrifugal pump 4 discharge water tank 3 liquid cause gas expansion form certain vacuum while spending intake pipe 1 start inspiration liquid and add to water tank 3, at this moment gas-liquid mixed completes until pump working is normal in water tank 3, completes the self-priming of centrifugal pump.After working properly first, operate centrifugal pump 4 later and stop and starting without again toward water tank perfusion fluid.
To sum up, this Self-priming device of centrifugal pump is simple and reasonable, by the water tank that forms certain vacuum degree is set, makes centrifugal pump have suction capacity, has improved the property easy to install and use of centrifugal pump, can replace external mixture type or the internal-mixing centrifugal pump with suction capacity, reduce user cost.
Finally it should be noted that: above embodiment is only in order to illustrate the utility model and the described technological scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can modify or be equal to replacement the utility model; And all do not depart from technological scheme and the improvement thereof of spirit and scope of the present utility model, it all should be encompassed in claim scope of the present utility model.
Claims (5)
1. a Self-priming device of centrifugal pump, is characterized in that, comprising:
Centrifugal pump;
Water tank, its top is laid with water injection valve, and bottom water outlet is communicated with the entrance of described centrifugal pump;
Intake pipe, vertically arranges, and its lower end water intake is for being communicated with external water source;
U-shaped pipe, its water intake is communicated with the upper end water outlet of described intake pipe, and the water outlet of this U-shaped pipe is communicated to water tank top, and makes described U-shaped pipe top higher than the highest retaining face of water tank;
Outlet pipe, the water intake of this outlet pipe is communicated with described centrifugal delivery side of pump, and the water outlet height of this outlet pipe is higher than the highest retaining face of water tank.
2. Self-priming device of centrifugal pump according to claim 1, is characterized in that: described water injection valve is ball valve.
3. Self-priming device of centrifugal pump according to claim 1, is characterized in that: the volume of described water tank is more than the twice of described intake pipe and U-shaped pipe total measurement (volume).
4. according to the Self-priming device of centrifugal pump described in any one in claims 1 to 3, it is characterized in that: described outlet pipe is L-type.
5. Self-priming device of centrifugal pump according to claim 4, is characterized in that: described L-type outlet pipe comprises: end section lateral stub and longitudinally long tube, and the water intake of this end section lateral stub is communicated with centrifugal delivery side of pump, and described longitudinal long tube is vertically laid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420056129.XU CN203670224U (en) | 2014-01-29 | 2014-01-29 | Self-priming device of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420056129.XU CN203670224U (en) | 2014-01-29 | 2014-01-29 | Self-priming device of centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670224U true CN203670224U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420056129.XU Expired - Fee Related CN203670224U (en) | 2014-01-29 | 2014-01-29 | Self-priming device of centrifugal pump |
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| Country | Link |
|---|---|
| CN (1) | CN203670224U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405644A (en) * | 2014-12-06 | 2015-03-11 | 无锡高卓流体设备有限公司 | Priming device for centrifugal water pump |
| GB2531873A (en) * | 2014-11-01 | 2016-05-04 | Gilbert Gilkes & Gordon Ltd | Quick priming pumps |
-
2014
- 2014-01-29 CN CN201420056129.XU patent/CN203670224U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2531873A (en) * | 2014-11-01 | 2016-05-04 | Gilbert Gilkes & Gordon Ltd | Quick priming pumps |
| CN104405644A (en) * | 2014-12-06 | 2015-03-11 | 无锡高卓流体设备有限公司 | Priming device for centrifugal water pump |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20190129 |