CN102943769A - Suction device in front of pump - Google Patents
Suction device in front of pump Download PDFInfo
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- CN102943769A CN102943769A CN2012100386934A CN201210038693A CN102943769A CN 102943769 A CN102943769 A CN 102943769A CN 2012100386934 A CN2012100386934 A CN 2012100386934A CN 201210038693 A CN201210038693 A CN 201210038693A CN 102943769 A CN102943769 A CN 102943769A
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- pump
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- pipe
- suction device
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Abstract
The invention discloses a suction device in front of a pump, and relates to a suction device in front of a pump, which is installed at front ends of pumps, such as a centrifugal pump or the like. The device comprises a water feeding pipe, a water discharging pipe, a barrel, a water injecting pipe and a water injecting valve, and is characterized in that the barrel comprises a barrel body and upper and lower covers which are welded into a whole body; a hole is formed on the lower cover and is welded with the water feeding pipe; a hole is formed on the upper cover and is welded with the water injecting pipe; a hole is formed on the barrel and in a position close to the lower cover, and is welded with the water discharging pipe; the water injecting valve is installed on the water injecting pipe and is connected with a water channel; the water discharging pipe is connected with a suction opening of the pump through a flange; and the lower end of the water feeding pipe extends into the underneath of liquid. The suction device has the benefits that a bottom valve is canceled, the problems of sealing leakage and liquid leakage caused by the bottom valve are thoroughly solved, liquid is filled in the suction opening of the pump all along, the pressure of the suction opening of the pump is increased, the occurrence rate of capitation phenomena is reduced, and the lifting height of liquid can be effectively improved.
Description
Technical field
The present invention relates to suction device before the pump that a kind of front end in pump classes such as centrifugal pumps installs.
Background technique
In daily life and work, people often use some pump classes and promote liquid, carry liquid or make liquid increase pressure.Installation with centrifugal pump is applied as example, and as shown in Figure 1, centrifugal pump 1 fixes on the ground, and the suction port of centrifugal pump 1 is connected with water inlet 3, and the lower end of water inlet 3 links to each other with bottom valve 4, and water injection valve 2 is installed in the level place, upper end of water inlet 3.During work, by opening water injection valve 2 toward the suction port water filling of water inlet 3 and centrifugal pump 1, this moment, bottom valve 4 was in hermetic state, then open the exhaust port on the pump, with the Bas Discharged in the suction port of water inlet 3 and centrifugal pump 1, after exhaust port there are flowing out, close the exhaust port on water injection valve 2 and the pump, start centrifugal pump and realize the drawing liquid process.But because the quality problems of bottom valve 4 or have the phenomenon of being blocked by foreign matter (as being grown in river snail in the water etc.) usually make bottom valve 4 not seal fully, so that can not realize drawing water normally.Because bottom valve 4 is poorly sealed, produces and leak, so all will to water filling in the suction port of water inlet 3 and centrifugal pump 1, get rid of air wherein, so that complex operation before every task.In addition, suction lift is large or liquid level is too low, fluid temperature is crossed the high bottom valve that also makes easily and produced cavitation phenomenons, cause liquid can not suction pump in, make the pump cisco unity malfunction, need often to change bottom valve.
Summary of the invention
The objective of the invention is provides a kind of bottom valve that need not for top described defective, but and the front suction device of the pump of the lifting height of Effective Raise liquid.
The objective of the invention is to be achieved by the following technical programs.
Suction device before the pump, consisted of by water inlet, outlet pipe, cylinder, water injecting pipe and water injection valve, it is characterized in that, cylinder is welded by stack shell and upper and lower covers, lower cover perforate and with the water inlet welding, on cover perforate and weld with water injecting pipe, the stack shell place perforate of covering on the lower at cylinder is also welded with outlet pipe, water injection valve is installed on the water injecting pipe and is connected with the water route, outlet pipe is connected with pump intake by flange, and the water inlet lower end is stretched under liquid.
Be provided with exhaust port on the suction device before the described pump, cover perforate on the cylinder and weld with exhaust port.
Described water inlet links to each other with cylinder and stretches in the cylinder.
Described water inlet stretches into the height that the interior height of cylinder is higher than cylinder stack shell upper water-out pipe.
Working principle of the present invention is: open water injection valve to cylinder, outlet pipe and Pump Suction Nozzle water filling, when having air to discharge from the bottom of water inlet, liquid level bubbling this moment, when water was filled with cylinder and water inlet, no longer bubbling of liquid level was (when the cylinder loam cake is equipped with exhaust port, air is discharged from exhaust port, when water was filled with cylinder and water inlet, water flowed out from exhaust port), the interior air of this moment cylinder and water inlet is all discharged, close water injection valve, start centrifugal pump and can realize drawing liquid work.After the shutdown, such as need drawing liquid again, need not carry out again water flood operations, directly start centrifugal pump and get final product.
The invention has the beneficial effects as follows: the present invention removes bottom valve, thoroughly get rid of the poorly sealed and fluid leakage problems that is produced by bottom valve, and be full of all the time liquid at the pump intake place, increased the pressure of Pump Suction Nozzle, reduce the generation of cavitation phenomenons, the lifting height of energy Effective Raise liquid.
Description of drawings
Fig. 1 is the scheme of installation as an example of centrifugal pump example in the prior art.
Fig. 2 is structural representation of the present invention.
Fig. 3 is that the present invention is with the structural representation of exhaust port.
Among the figure: 1 centrifugal pump, 2 water injection valves, 3 water inlets, 4 bottom valves, 5 outlet pipes, 6 cylinders, 7 water injecting pipes, 8 exhaust ports.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
The biochemical Co., Ltd of Jiangxi Xin Ruifeng environmental protection station has long 10 meters * wide 10 meters * high 4 meters Buffer Pool (about 400m
3), require in the technological process regularly sewage in the pond (about PH=3) to be evacuated to the sewage regulating tank.During beginning, adopt acid-resistant ceramic slurry pump (HNTB-ZK-50/30) to come drawing liquid, the import discrepancy in elevation of the liftoff face-pumping of liquid level is about about 2.5 meters in the pond.As shown in Figure 1 installation method is adopted in the installation of pump, but at work, acid-resistant ceramic slurry pump is difficult to liquid be drawn up cisco unity malfunction.Therefore, change without stopping up sewage submersible pump and sink to drawing liquid in the sewage, although liquid can have been drawn up, the time has been grown, and owing to submersible pump, cable are immersed in the Acidic Liquid for a long time, causes equipment heavy corrosion and potential safety hazard.At last, adopt the as shown in Figure 2 front suction device of pump.
Suction device before the pump, consisted of by water inlet 3, outlet pipe 5, cylinder 6, water injecting pipe 7 and water injection valve 2, cylinder 6 is welded by stack shell and upper and lower covers, under cover perforate and with water inlet 5 welding, on cover perforate and with water injecting pipe 7 welding, the stack shell place perforate of cover on the lower at cylinder 6 and with outlet pipe 5 welding, installation water injection valve 2 and be connected with the water route on the water injecting pipe 7, outlet pipe 5 is connected with pump intake by flange, and water inlet 3 lower ends are stretched under liquid.Water inlet 3 links to each other with cylinder 6 and stretches in the cylinder 6, stretches into the height that cylinder 6 interior height are higher than cylinder 6 stack shell upper water-out pipes 5.
Working principle of the present invention is: open water injection valve 2 to cylinder 6, outlet pipe 5 and Pump Suction Nozzle water filling, when having air to discharge from the bottom of water inlet 3, liquid level bubbling this moment, when water is filled with cylinder 6 and water inlet 3, liquid level is bubbling no longer, this moment, cylinder 6 and water inlet 3 interior air were all discharged, and closed water injection valve 2, started centrifugal pump and can realize drawing liquid work.After the shutdown, such as need drawing liquid again, need not carry out again water flood operations, directly start centrifugal pump and get final product.
Suction device before the pump, consisted of by water inlet 3, outlet pipe 5, cylinder 6, water injecting pipe 7 and water injection valve 2, cylinder 6 is welded by stack shell and upper and lower covers, under cover perforate and with water inlet 5 welding, on cover perforate and respectively with 8 welding of water injecting pipe 7, exhaust port, the stack shell place perforate of cover on the lower at cylinder 6 and with outlet pipe 5 welding, installation water injection valve 2 and be connected with the water route on the water injecting pipe 7, outlet pipe 5 is connected with pump intake by flange, and water inlet 3 lower ends are stretched under liquid.Water inlet 3 links to each other with cylinder 6 and stretches in the cylinder 6, stretches into the height that cylinder 6 interior height are higher than cylinder 6 stack shell upper water-out pipes 5.
Working principle of the present invention is: open water injection valve 2 to cylinder 6, outlet pipe 5 and Pump Suction Nozzle water filling, air is discharged from exhaust port 8, when water is filled with cylinder 6 and water inlet 3, water flows out from exhaust port 8, this moment, cylinder 6 and water inlet 3 interior air were all discharged, close water injection valve 2, start centrifugal pump and can realize drawing liquid work.After the shutdown, such as need drawing liquid again, need not carry out again water flood operations, directly start centrifugal pump and get final product.
Claims (4)
1. suction device before the pump, by water inlet (3), outlet pipe (5), cylinder (6), water injecting pipe (7) and water injection valve (2) consist of, it is characterized in that: cylinder (6) is welded by stack shell and upper and lower covers, under cover perforate and weld with water inlet (3), on cover perforate and weld with water injecting pipe (7), the stack shell place perforate of covering on the lower at cylinder (6) is also welded with outlet pipe (5), water injecting pipe (7) is upward installed water injection valve (2) and is connected with the water route, outlet pipe (5) is connected with pump intake by flange, and water inlet (3) lower end is stretched under liquid.
2. suction device before the pump according to claim 1 is characterized in that: be provided with exhaust port (8) on the suction device before the described pump, cover perforate on the cylinder (6) and weld with exhaust port (8).
3. suction device before the pump according to claim 1 and 2, it is characterized in that: described water inlet (3) links to each other with cylinder (6) and stretches in the cylinder (6).
4. suction device before the pump according to claim 1 and 2 is characterized in that: described water inlet (3) stretches into the height that height in the cylinder (6) is higher than cylinder (6) stack shell upper water-out pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100386934A CN102943769A (en) | 2012-02-21 | 2012-02-21 | Suction device in front of pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100386934A CN102943769A (en) | 2012-02-21 | 2012-02-21 | Suction device in front of pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102943769A true CN102943769A (en) | 2013-02-27 |
Family
ID=47726740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100386934A Pending CN102943769A (en) | 2012-02-21 | 2012-02-21 | Suction device in front of pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102943769A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2040178U (en) * | 1988-11-11 | 1989-06-28 | 雷恩义 | Water pump without bottom valve |
| CN2053263U (en) * | 1989-07-24 | 1990-02-21 | 刘希平 | Non-bottom valve device for centrifugal pump |
| CN2143265Y (en) * | 1992-08-03 | 1993-10-06 | 李增勇 | Water pump connector |
| JPH08247099A (en) * | 1995-03-14 | 1996-09-24 | Maezawa Ind Inc | Pumping device |
| CN2617959Y (en) * | 2003-05-22 | 2004-05-26 | 北京造纸七厂 | Water storage device for liquid pump |
| CN2725591Y (en) * | 2004-09-25 | 2005-09-14 | 王茂新 | Water suction apparatus |
| CN202441639U (en) * | 2012-02-21 | 2012-09-19 | 江西新瑞丰生化有限公司 | Pump front suction device |
-
2012
- 2012-02-21 CN CN2012100386934A patent/CN102943769A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2040178U (en) * | 1988-11-11 | 1989-06-28 | 雷恩义 | Water pump without bottom valve |
| CN2053263U (en) * | 1989-07-24 | 1990-02-21 | 刘希平 | Non-bottom valve device for centrifugal pump |
| CN2143265Y (en) * | 1992-08-03 | 1993-10-06 | 李增勇 | Water pump connector |
| JPH08247099A (en) * | 1995-03-14 | 1996-09-24 | Maezawa Ind Inc | Pumping device |
| CN2617959Y (en) * | 2003-05-22 | 2004-05-26 | 北京造纸七厂 | Water storage device for liquid pump |
| CN2725591Y (en) * | 2004-09-25 | 2005-09-14 | 王茂新 | Water suction apparatus |
| CN202441639U (en) * | 2012-02-21 | 2012-09-19 | 江西新瑞丰生化有限公司 | Pump front suction device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130227 |