CN212107896U - Pipe network leakage control system - Google Patents
Pipe network leakage control system Download PDFInfo
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- CN212107896U CN212107896U CN202020478599.0U CN202020478599U CN212107896U CN 212107896 U CN212107896 U CN 212107896U CN 202020478599 U CN202020478599 U CN 202020478599U CN 212107896 U CN212107896 U CN 212107896U
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Abstract
The utility model relates to a pipe network leakage control system, which comprises a water pool, a variable frequency pump set, a data acquisition unit and a controller, wherein the outlet end of the water pool is connected with the input end of the variable frequency pump set, and the output end of the variable frequency pump set is connected with a water outlet pipeline; a plurality of secondary supercharging devices are sequentially arranged on the water outlet pipeline; the output end of the frequency conversion pump group is provided with a first pressure sensor, the inlet of the secondary supercharging equipment with the lowest inlet pressure on the water outlet pipeline is provided with a second pressure sensor, the first pressure sensor and the second pressure sensor are both connected with the data acquisition unit, and the controller adjusts the working states of the two water pumps in the frequency conversion pump group according to the data detected by the first pressure sensor and the second pressure sensor. The utility model discloses can effectual reduction water supply system go out water pressure when the water consumption low ebb, reduce water supply system operation energy consumption, reduce the pipe network leakage rate, reduce the booster risk.
Description
Technical Field
The utility model relates to a pipe network control technical field especially relates to a pipe network leakage control system.
Background
The water supply pipe network system in China has serious leakage due to various reasons such as construction age, pipe material, design and the like, the leakage rate of partial local tap water supply pipe networks is up to 40 percent, and even pipe explosion happens occasionally. Along with the acceleration of the urbanization process, the increase of water consumption in the initial construction stage of part of water supply pipe network systems is not enough, so that the most unfavorable point water supply is not enough, the conventional solution adopts a method for improving the water outlet pressure of a water plant, the leakage loss is increased along with the increase of the pressure, and therefore the improvement of the water outlet pressure of the water plant aggravates the leakage loss of a pipe network, and the energy consumption of a water supply system is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a pipe network leakage control system is provided, can effectual reduction water supply system play water pressure when the water low ebb, reduce water supply system operation energy consumption, reduce the pipe network leakage rate, reduce the booster risk.
The utility model provides a technical scheme that its technical problem adopted is: the pipe network leakage control system comprises a water pool, a variable frequency pump set, a data collector and a controller, wherein the variable frequency pump set at least comprises two water pumps, the data collector is connected with the controller, the outlet end of the water pool is connected with the input end of the variable frequency pump set, and the output end of the variable frequency pump set is connected with a water outlet pipeline; a plurality of secondary supercharging devices are sequentially arranged on the water outlet pipeline; the output end of the frequency conversion pump group is provided with a first pressure sensor, the inlet of the secondary supercharging equipment with the lowest inlet pressure on the water outlet pipeline is provided with a second pressure sensor, the first pressure sensor and the second pressure sensor are both connected with the data acquisition unit, and the controller adjusts the working states of the two water pumps in the frequency conversion pump group according to the data detected by the first pressure sensor and the second pressure sensor.
And stop valves are arranged at the inlets of the secondary supercharging devices.
And stop valves are arranged at the inlet and the outlet of the water pump.
And a check valve is arranged at the outlet of the water pump.
The data collector and the controller are integrated into a whole.
Advantageous effects
Since the technical scheme is used, compared with the prior art, the utility model, have following advantage and positive effect: the utility model discloses can reduce water factory play water pressure in the water consumption trough time section, reduce the water supply system operation energy consumption to reduce the pipe network leakage rate, reduce the booster risk, simultaneously in the water consumption peak period, can increase the play water pressure of water factory, guarantee can normally supply water. The utility model discloses only need set up pressure sensor at the most unfavorable secondary supercharging equipment entry, all the other secondary supercharging equipment entries need not set up pressure sensor, have practiced thrift pressure sensor's quantity, have reduced the running cost.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
The embodiment of the utility model relates to a pipe network leakage control system, as shown in fig. 1, including pond 1, frequency conversion pump package, data collection station 2 and controller 3, the frequency conversion pump package includes first water pump 7 and second water pump 8, data collection station 2 is integrated with controller 3 into an organic whole, the exit end of pond 1 with the input of frequency conversion pump package links to each other, the output of frequency conversion pump package is connected with outlet conduit; the water outlet pipeline is sequentially provided with a first secondary pressurizing device 4, a second secondary pressurizing device 5 and a third secondary pressurizing device 6; the output end of the frequency conversion pump group is provided with a first pressure sensor 9, the inlet of the last secondary supercharging equipment (namely, the third secondary supercharging equipment 6) on the water outlet pipeline is provided with a second pressure sensor 10, the first pressure sensor 9 and the second pressure sensor 10 are both connected with the data acquisition unit 2, and the controller 3 adjusts the working states of the first water pump 7 and the second water pump 8 in the frequency conversion pump group according to the data detected by the first pressure sensor 9 and the second pressure sensor 10.
The controller 3 in the present embodiment can set the upper limit value and the lower limit value of the inlet pressure of each secondary supercharging device, and the secondary supercharging device having the lowest inlet pressure is set as the least favorable point of the inlet pressure of the secondary supercharging device in the pipe network system at the time of setting, and the pressure at the inlet of the third secondary supercharging device 6 is the lowest in the present embodiment, and therefore the second pressure sensor 10 is disposed at the inlet of the third secondary supercharging device 6.
The first water pump 7 and the second water pump 8 take water from the water pool 1, and the inlet and the outlet of the first water pump 7 and the outlet of the second water pump 8 are respectively provided with a stop valve 11. And the outlets of the first water pump 7 and the second water pump 8 are provided with check valves 12. A first pressure sensor 9 is arranged at the outlet of a variable frequency pump group consisting of the first water pump 7 and the second water pump 8.
Under the normal condition, the controller 3 calculates the outlet pressure of the variable frequency pump set according to the pressure signal of the second pressure sensor 10 acquired by the data acquisition unit 2, compares the calculated value with the feedback value of the first pressure sensor 9, and continuously corrects the calculated value to ensure the hydraulic balance of the pipe network. The pressure value of the first pressure sensor 9 corresponds to the rotating speed of two water pumps in the variable frequency pump group.
When the water consumption is increased and the resistance of a pipe network is increased, the pressure detected by the second pressure sensor 10 is lower than the lower limit value of the inlet pressure of the third secondary supercharging equipment calculated by the controller, if only one water pump of the frequency conversion pump group runs, the controller 3 sends a control signal to increase the running rotating speed of the first water pump 7 or the second water pump 8, if the running rotating speed of the single water pump reaches the maximum value, the pressure signal detected by the second pressure sensor 10 is still lower than the lower limit value of the inlet pressure of the third secondary supercharging equipment, and the controller 3 sends a control signal to start the other water pump of the frequency conversion pump group until the pressure value detected by the second pressure sensor 10 is within the limit value interval set by the system.
On the contrary, when the water consumption is reduced, the flow is reduced, the speed of water flow in the pipe network is reduced, the on-way resistance loss is reduced, if the outlet pressure of the variable frequency pump set is unchanged, the pressure detected by the second pressure sensor 10 is increased, and when the detected pressure is higher than the upper limit value of the inlet pressure of the third secondary supercharging equipment calculated by the controller, the controller 3 sends a control signal to reduce the number and the rotating speed of the running water pumps in the variable frequency pump set until the pressure of the second pressure sensor 10 is within the limit value interval set by the system.
The discovery of being difficult to, the utility model discloses can reduce the water factory and go out the water pressure in the water consumption trough time section, reduce the water supply system operation energy consumption to reduce the pipe network leakage rate, reduce the booster risk, simultaneously in the water consumption peak period, can increase the play water pressure of water factory, guarantee can normally supply water. The utility model discloses only need set up pressure sensor at the most unfavorable secondary supercharging equipment entry, all the other secondary supercharging equipment entries need not set up pressure sensor, have practiced thrift pressure sensor's quantity, have reduced the running cost.
Claims (5)
1. A pipe network leakage control system comprises a water pool, a variable frequency pump set, a data collector and a controller, wherein the variable frequency pump set at least comprises two water pumps, the data collector is connected with the controller, and the pipe network leakage control system is characterized in that the outlet end of the water pool is connected with the input end of the variable frequency pump set, and the output end of the variable frequency pump set is connected with a water outlet pipeline; a plurality of secondary supercharging devices are sequentially arranged on the water outlet pipeline; the output end of the frequency conversion pump group is provided with a first pressure sensor, the inlet of the secondary supercharging equipment with the lowest inlet pressure on the water outlet pipeline is provided with a second pressure sensor, the first pressure sensor and the second pressure sensor are both connected with the data acquisition unit, and the controller adjusts the working states of the two water pumps in the frequency conversion pump group according to the data detected by the first pressure sensor and the second pressure sensor.
2. The pipe network leakage control system of claim 1, wherein a stop valve is provided at each of the inlets of the plurality of secondary pressurization devices.
3. The pipe network leakage control system of claim 1, wherein said water pump inlet and outlet are provided with a shut-off valve.
4. The pipe network leakage control system of claim 1, wherein a check valve is provided at the outlet of said water pump.
5. The pipe network leakage control system of claim 1, wherein the data collector and the controller are integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020478599.0U CN212107896U (en) | 2020-04-03 | 2020-04-03 | Pipe network leakage control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020478599.0U CN212107896U (en) | 2020-04-03 | 2020-04-03 | Pipe network leakage control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212107896U true CN212107896U (en) | 2020-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020478599.0U Active CN212107896U (en) | 2020-04-03 | 2020-04-03 | Pipe network leakage control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212107896U (en) |
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2020
- 2020-04-03 CN CN202020478599.0U patent/CN212107896U/en active Active
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