CN205841320U - Water pump back flow protection system - Google Patents
Water pump back flow protection system Download PDFInfo
- Publication number
- CN205841320U CN205841320U CN201620834982.9U CN201620834982U CN205841320U CN 205841320 U CN205841320 U CN 205841320U CN 201620834982 U CN201620834982 U CN 201620834982U CN 205841320 U CN205841320 U CN 205841320U
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- water
- water pump
- pipeline
- back flow
- protection system
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Abstract
The utility model discloses a kind of water pump back flow protection system; including water intaking pipeline; one end of this water intaking pipeline is connected with water source; the other end is connected to cistern; the position of described cistern, higher than the position at described water source, this water intaking pipeline connects and has water pump, and described water pump uses vector frequency converter to control it; connect on described water intaking pipeline and have earial drainage pipeline, this earial drainage pipeline is provided with control valve.On the one hand the water pump back flow protection system of above technical scheme, reduce the hydraulic pressure of recirculation water, it is to avoid the reversion of water pump impeller and coming off；On the other hand maintenance and the maintenance cost of system are also substantially reduced；Simple in construction, cost is relatively low, extends the service life of water intake system.
Description
Technical field
This utility model relates to a kind of water intake system, is specifically related to a kind of water pump back flow protection system.
Background technology
In some water intake systems, due to cistern from water intaking source farther out, cause on geographical position, there is bigger height
Difference, when water pump is out of service, the hydraulic pressure pressure when water in water pipe refluxes is very big, and water pump can be made to be subject to the biggest rushing
Hit, cause water pump vane reversion easily to damage.For this kind of situation, it is currently utilization increase check-valves in water pipe and stops
The impulsive force of recirculation water, but because conduit pipeline length and vertically difference in height are relatively big, check-valves is also vulnerable to impact and damages, invisible
In reduce service life of water intake system, add maintenance cost simultaneously.
Utility model content
In view of problem above, water pump back flow protection system of the present utility model increases an earial drainage water on intake pipe
Pipe, to reduce the impact to water pump of the recirculation water hydraulic pressure, extends the service life of water intake system.
Its technical scheme is as follows:
A kind of water pump back flow protection system, including water intaking pipeline, one end of this water intaking pipeline is connected with water source, the other end
Being connected to cistern, the position of described cistern, higher than the position at described water source, this water intaking pipeline connects and has water pump, described
Water pump uses vector frequency converter to control it, and described water intaking pipeline connects earial drainage pipeline, and this earial drainage pipeline sets
Being equipped with control valve, the position of described earial drainage pipeline and water intaking line connection is higher than the position of described water pump.
Use above-mentioned design, the control valve on earial drainage pipeline need to be closed when cistern water delivery, start water pump, water intaking
Pump is through intake pipe road direction cistern water delivery；When water delivery need to be stopped, first opening the control valve of earial drainage pipeline, then stop water pump,
When water pump fails, it is possible to use the low frequency output permanent torque of vector frequency converter, make extend deceleration time, slow down with this
Recirculation water so that it is impulsive force reduces, it is possible to reduce the impact to water pump of the recirculation water in water intaking pipeline.
As preferably, it is additionally provided with, in described water intaking pipeline, the filter that the water at water source is filtered.
As preferably, in order to reduce the impact to water pump of the recirculation water hydraulic pressure further, described water intaking pipeline is arranged
Check-valves, the position of this check-valves is higher than the position of described water pump.
As preferably, described control valve is electrodynamic valve.
As preferably, the position of described earial drainage pipeline and water intaking line connection is higher than the position of described check-valves.
Beneficial effect:
1, the hydraulic pressure of recirculation water is reduced, it is to avoid the reversion of water pump impeller and coming off；
2, decrease the recirculation water impact to check-valves, substantially reduce maintenance and the maintenance cost of system；
3, simple in construction, cost is relatively low, extends the service life of this water intake system.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail.
A kind of water pump back flow protection system as shown in Figure 1, including water intaking pipeline 2, one end of this water intaking pipeline 2 with
Water source 1 connects, and the other end is connected to cistern 3, and the water inlet of described water intaking pipeline 2 is provided with filter screen, in the present embodiment
Water source 1 is Yangtze River Water, and the position of described cistern 3 is higher than the position at described water source 1.It is right to be additionally provided with in described water intaking pipeline 2
Water at water source 1 carries out the filter 7 filtered.
Described water intaking pipeline 2 connects water pump 5, and described water intaking pipeline 2 connects earial drainage pipeline 4, this earial drainage pipeline 4
On be provided with control valve 8, the control valve 8 in the present embodiment uses electrodynamic valve.Utilize this earial drainage pipeline 4 in water intaking pipeline 2
Recirculation water carries out earial drainage, to reduce the impulsive force of recirculation water.
Being provided with check-valves 6 on described water intaking pipeline 2, the position of this check-valves 6 utilizes higher than the position of described water pump 5
This check-valves 6 can reduce the recirculation water impact to water pump 5 further, and described water pump 5 uses vector frequency converter to enter it
Row controls, and is so designed that, when water pump 5 fails, it is possible to use the low frequency output permanent torque of vector frequency converter, makes deceleration
Time lengthening, slows down recirculation water with this so that it is impulsive force reduces, and described earial drainage pipeline 4 is high with the position of water intaking pipeline 2 junction
In described water pump 5 and the position of check-valves 6.Whole water intake system, simple in construction, cost is relatively low, and service life is long.
Claims (5)
1. a water pump back flow protection system, including water intaking pipeline (2), one end of this water intaking pipeline (2) is with water source (1) even
Connecing, the other end is connected to cistern (3), and the position of described cistern (3) is higher than the position at described water source (1), this water intaking pipeline
(2) upper connection has water pump (5), it is characterised in that: the upper connection of described water intaking pipeline (2) has earial drainage pipeline (4), this earial drainage pipeline
(4) control valve (8) it is provided with on；Described earial drainage pipeline (4) is higher than described water pump with the position of water intaking pipeline (2) junction
(5) position；Described water pump (5) uses vector frequency converter to control it.
Water pump back flow protection system the most according to claim 1, it is characterised in that: also set on described water intaking pipeline (2)
It is equipped with filter (7).
Water pump back flow protection system the most according to claim 1 and 2, it is characterised in that: set on described water intaking pipeline (2)
Being equipped with check-valves (6), the position of this check-valves (6) is higher than the position of described water pump (5).
Water pump back flow protection system the most according to claim 3, it is characterised in that: described control valve (8) is electrodynamic valve.
Water pump back flow protection system the most according to claim 4, it is characterised in that: described earial drainage pipeline (4) and water intaking
The position of pipeline (2) junction is higher than the position of described check-valves (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620834982.9U CN205841320U (en) | 2016-08-03 | 2016-08-03 | Water pump back flow protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620834982.9U CN205841320U (en) | 2016-08-03 | 2016-08-03 | Water pump back flow protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205841320U true CN205841320U (en) | 2016-12-28 |
Family
ID=57617671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620834982.9U Active CN205841320U (en) | 2016-08-03 | 2016-08-03 | Water pump back flow protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205841320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049190A (en) * | 2020-07-24 | 2020-12-08 | 浙江大学 | Vertical axial-flow pump reverse flow diversion system |
-
2016
- 2016-08-03 CN CN201620834982.9U patent/CN205841320U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049190A (en) * | 2020-07-24 | 2020-12-08 | 浙江大学 | Vertical axial-flow pump reverse flow diversion system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |