CN2761884Y - Siphon proof device of vertical self primping pump - Google Patents
Siphon proof device of vertical self primping pump Download PDFInfo
- Publication number
- CN2761884Y CN2761884Y CN 200420114866 CN200420114866U CN2761884Y CN 2761884 Y CN2761884 Y CN 2761884Y CN 200420114866 CN200420114866 CN 200420114866 CN 200420114866 U CN200420114866 U CN 200420114866U CN 2761884 Y CN2761884 Y CN 2761884Y
- Authority
- CN
- China
- Prior art keywords
- pump
- valve seat
- siphon
- pump chamber
- connecting tube
- 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 - Fee Related
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- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model relates to a siphon-proof device of a vertical self-sucking pump, which comprises a pump body, a motor, a water inlet pipe and a water outlet pipe. The utility model is characterized in that a penetrative connecting pipe is arranged between the water inlet pipe and the pump cavity of the pump body; a ball valve is arranged in the pump cavity corresponding to the connecting pipe, wherein one side of a valve seat of the ball valve is provided with a hole for communicating with the connecting pipe, the other side of the valve seat is provided with a hole for communicating with the pump cavity, a round ball is arranged in the valve seat, and the side of the connecting pipe inside the valve seat is provided with a spring; the connecting pipe arranged between the water inlet pipe and the pump cavity of the pump body is positioned in the position higher than one-half of the pump cavity. The utility model has the advantages that the structure of the siphon proof device is simple; no damage occurs to the utility model; moreover, sufficient liquid can be retained in the pump cavity so as to satisfy next-time start-up operation.
Description
Technical field
The utility model relates to a kind of anti-siphon means, particularly a kind of vertical self-sucking pump anti-siphon means.
Background technique
Plurality of advantages such as at present vertical self-sucking pump was owing to both had self-absorption function, and it is little to have floor space again, easy for installation, thereby all be applied in many occasions.Vertical self-sucking pump is after shutdown; liquid in the pump chamber can be because siphonage flows back to liquid storage tank through intake pipe; in order to prevent this siphonage, must set up the device that destroys siphonage in the pump, start required drainage liquid next time thereby make to shut down still to have in the pump chamber of back.At present, domestic vertical self-sucking pump anti-siphon means has two kinds, a kind ofly is that the Pump Suction Nozzle place installs safety check, and the shortcoming of this structure be an one side safety check poor reliability, easily leaks and produces siphonage; This structure has increased the suction resistance loss on the other hand, influences the suction journey of pump.Another kind of anti-siphon means is that inlet ductwork is installed electrically-controlled valve, leans on the action of the contactor in the valve to destroy siphon.The shortcoming of this structure is the poor stability of electrically-controlled valve on the one hand, takes place easily that valve block is not closed completely and contactor coil such as burns at phenomenon; This structure has increased electromagnetic consumable on the other hand.
Summary of the invention
The purpose of this utility model is that vertical self-sucking pump liquid in the pump chamber after shutdown can provide a kind of simple in structure, loss-free vertical self-sucking pump anti-siphon means because siphonage flow back to the existing problem of liquid storage tank through intake pipe in the solution prior art.The utility model designs a kind of vertical self-sucking pump anti-siphon means, comprises the pump housing, motor, intake pipe, outlet pipe, it is characterized in that: a connecting tube that connects is arranged between the pump chamber of the intake pipe and the pump housing, with respect to the connecting tube place one ball valve is arranged in pump chamber.A side is porose on the valve seat of ball valve communicates with connecting tube, and the opposite side of valve seat is porose to communicate with pump chamber, and ball is arranged in valve seat, and connecting tube place one side in valve seat has spring.Connecting tube between the pump chamber of the intake pipe and the pump housing is positioned at more than 1/2nd of pump chamber.The utility model has the advantages that anti-siphon means is simple in structure, lossless, and can make and remain with enough liquid in the pump chamber, be used for satisfying the startup operation of next time.
Description of drawings
Below in conjunction with drawings and Examples the utility model is elaborated,
Accompanying drawing is a structural representation of the present utility model,
Embodiment
Comprise the pump housing 1, motor 2, intake pipe 3, outlet pipe 4 among the figure, it is characterized in that: 5 of pump chambers at the intake pipe 3 and the pump housing 1 have a connecting tube 6 that connects, and with respect to connecting tube 6 places one ball valve 7 are arranged in pump chamber 5.A side porose 9 communicates with connecting tube 6 on the valve seat 8 of ball valve 7, and the opposite side of valve seat 8 porose 10 communicates with pump chamber 5, and ball 11 is arranged in valve seat 8, and connecting tube 6 places one side in valve seat 8 has spring 12.The connecting tube 6 that the pump chamber of the intake pipe 3 and the pump housing 1 is 5 is positioned at more than 1/2nd of pump chamber 5.During pump startup, the liquid in the pump is under the action of centrifugal force of impeller, and the pressure in the pump chamber 5 raises, and the pressure in the intake pipe 3 descends.Ball 11 pressure springs 12 in the pressure official post ball valve 7 of pump chamber 5 and intake pipe 3 and being pressed on the hole 9 of valve seat 8 have effectively prevented the backflow of the water in the pump chamber 5, have improved the volumetric efficiency of pump.After the shutdown; pressure in the pump chamber 5 descends; ball 11 in the ball valve 7 is opened under the rebounding force effect of spring 12; when the liquid in the pump chamber 5 drops to connecting tube 6 positions because of siphonage; gas can enter into intake pipe 3 by connecting tube 6, thereby makes inlet pipeline 3 and pump chamber 5 pressure at both sides balances, has effectively destroyed the siphonage after the termination of pumping; simultaneously connecting tube 6 be arranged in keeping more than 1/2nd of pump chamber 5 pump chamber 5 enough liquid is arranged, be used for satisfying the startup operation of next time.
Claims (3)
1, a kind of vertical self-sucking pump anti-siphon means comprises the pump housing, motor, intake pipe, outlet pipe, it is characterized in that: a connecting tube that connects is arranged between the pump chamber of the intake pipe and the pump housing, with respect to the connecting tube place one ball valve is arranged in pump chamber.
2, by the described a kind of vertical self-sucking pump anti-siphon means of claim 1, it is characterized in that: a side is porose on the valve seat of ball valve communicates with connecting tube, the opposite side of valve seat is porose to communicate with pump chamber, and ball is arranged in valve seat, and connecting tube place one side in valve seat has spring.
3, by the described a kind of vertical self-sucking pump anti-siphon means of claim 1, it is characterized in that: the connecting tube between the pump chamber of the intake pipe and the pump housing is positioned at more than 1/2nd of pump chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114866 CN2761884Y (en) | 2004-12-27 | 2004-12-27 | Siphon proof device of vertical self primping pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114866 CN2761884Y (en) | 2004-12-27 | 2004-12-27 | Siphon proof device of vertical self primping pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2761884Y true CN2761884Y (en) | 2006-03-01 |
Family
ID=36095011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420114866 Expired - Fee Related CN2761884Y (en) | 2004-12-27 | 2004-12-27 | Siphon proof device of vertical self primping pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2761884Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105229309A (en) * | 2013-05-22 | 2016-01-06 | 格兰富控股联合股份公司 | Multifunctional self sucking centrifugal pump unit |
-
2004
- 2004-12-27 CN CN 200420114866 patent/CN2761884Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105229309A (en) * | 2013-05-22 | 2016-01-06 | 格兰富控股联合股份公司 | Multifunctional self sucking centrifugal pump unit |
| US10337516B2 (en) | 2013-05-22 | 2019-07-02 | Grundfos Holding A/S | Multi-stage, self-priming centrifugal pump assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060301 Termination date: 20100127 |