CN113027738B - Control method, device and equipment for drainage emergency rescue pump and drainage emergency rescue vehicle - Google Patents
Control method, device and equipment for drainage emergency rescue pump and drainage emergency rescue vehicle Download PDFInfo
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- CN113027738B CN113027738B CN202110106931.XA CN202110106931A CN113027738B CN 113027738 B CN113027738 B CN 113027738B CN 202110106931 A CN202110106931 A CN 202110106931A CN 113027738 B CN113027738 B CN 113027738B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
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- Mechanical Engineering (AREA)
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- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a control method, a device and equipment for a drainage emergency rescue pump and a drainage emergency rescue vehicle, wherein the method comprises the following steps: acquiring a water displacement estimated value corresponding to each drainage pump; preliminarily calculating the water pump rotating speed and flow of each drainage water pump based on the water displacement estimated value and the self parameter of each drainage water pump; calculating the current power of each drainage pump, and obtaining the current lift of each drainage pump according to the current power of each drainage pump; when the current lift of each drainage waterlogging water pump does not exceed the maximum allowable lift of each drainage waterlogging water pump, calculating to obtain the optimal operating power of each drainage waterlogging water pump according to the total power of each drainage waterlogging water pump, the rated power of each drainage waterlogging water pump and the maximum value of the output power of the generator set; and adjusting the maximum value of the input current of each drainage water pump according to the optimal operating power of each drainage water pump to control the rotation speed and flow of each drainage water pump. The emergency power supply power utilization rate and the drainage efficiency are improved, and the purpose of finishing the emergency task at the quickest speed can be achieved.
Description
Technical Field
The invention relates to the technical field of drainage and emergency rescue, in particular to a control method, a control device and a control equipment for drainage and emergency rescue pumps and a drainage and emergency rescue vehicle.
Background
The flood drainage emergency car is mainly composed of an independent emergency power supply car and a water pump water supply system, power and water pump flow matching control is carried out on the whole system, at present, development and use are rarely carried out, the power loss of the emergency power supply is large, the power utilization rate of the emergency power supply is low, the output power of a generator set is not utilized to the maximum, and therefore the power utilization rate of the emergency power supply is improved, and the problem that the existing emergency drainage efficiency needs to be solved by carrying out emergency drainage at the fastest speed is solved.
Disclosure of Invention
The invention provides a control method of a drainage emergency rescue pump, aiming at solving the technical problems of large power loss, low utilization rate and drainage efficiency of an emergency power supply of the existing drainage emergency rescue vehicle.
The technical scheme adopted by the invention is as follows:
a control method for a drainage emergency rescue pump comprises the following steps:
acquiring a water displacement estimated value corresponding to each drainage pump;
preliminarily calculating the water pump rotating speed and flow of each drainage pump based on the water discharge prediction value and the parameters of each drainage pump;
calculating the current power of each drainage pump, and obtaining the current lift of each drainage pump according to the current power of each drainage pump;
when the current lift of each drainage waterlogging water pump does not exceed the maximum allowable lift of each drainage waterlogging water pump, calculating to obtain the optimal operating power of each drainage waterlogging water pump according to the total power of each drainage waterlogging water pump, the rated power of each drainage waterlogging water pump and the maximum value of the output power of the generator set;
and adjusting the maximum value of the input current of each drainage pump according to the optimal operating power of each drainage pump to control the rotation speed and flow of each drainage pump.
Further, when the water pump rotating speed and the flow of each drainage water pump are obtained through preliminary calculation based on the water displacement estimated value and the self parameter of each drainage water pump, when the blades and the pipe diameter of the same drainage water pump are fixed, the water pump rotating speed ni and the flow Qi are in corresponding relation:
ni∝Qi。
further, the current power of each drainage pump is calculated, and the current lift of each drainage pump is obtained according to the current power of each drainage pump, and the method specifically comprises the following steps:
according to the voltage U, the current Ii and the power factor of each drainage waterlogging pump
Calculating the current power of each drainage pump:
obtaining the current lift Hi of each drainage waterlogging water pump according to the current power of each drainage waterlogging water pump:
wherein rho is a density coefficient, and g is a gravity coefficient.
Further, the step of obtaining the current lift of each drainage waterlogging water pump according to the current power of each drainage waterlogging water pump further comprises the following steps:
evaluating the current lift Hi of each drainage pump, and judging whether the current lift Hi exceeds the allowable lift range of each drainage pump;
when the current lift Hi of each drainage waterlogging water pump does not exceed the allowable lift range of each drainage waterlogging water pump, continuing to perform waterlogging drainage operation; otherwise, the lift range of each drainage pump is reduced by adjusting the arrangement of the water hoses.
Further, the optimal operating power of each drainage pump is calculated according to the total power of each drainage pump, the rated power of each drainage pump and the maximum value of the output power of the generator set, and the method specifically comprises the following steps:
if the total power of each drainage waterlogging pump is less than or equal to the maximum output power of the generator set:
∑Pi≤Pd，
controlling each drainage pump to operate according to the respective maximum rotating speed to drain the waterlogging;
if the total power of each drainage waterlogging pump is greater than the maximum value of the output power of the generator set:
∑Pi＞Pd，
and adjusting to obtain the optimal operating power of each drainage pump:
Pi＇＝Pi×(Pd/∑Pi)。
further, the method comprises the following steps of adjusting the maximum value of the input current of each drainage pump according to the optimal operating power of each drainage pump to control the rotating speed and the flow of each drainage pump, and specifically comprises the following steps:
calculating the maximum limit value of the current Ii of each drainage waterlogging water pump according to the optimal operating power Pi' of each drainage waterlogging water pump to carry out flow Qi output control of the water pump:
the invention also provides a control device for the drainage emergency pump, which comprises:
the water displacement estimation module is used for acquiring water displacement estimation values corresponding to the drainage pumps;
the water pump rotating speed and flow calculation module is used for preliminarily calculating the water pump rotating speed and flow of each drainage water pump based on the drainage amount predicted value and the self parameter of each drainage water pump;
the power and lift calculation module is used for calculating the current power of each drainage pump and obtaining the current lift of each drainage pump according to the current power of each drainage pump;
the power optimization module is used for calculating to obtain the optimal operating power of each drainage pump according to the total power of each drainage pump, the rated power of each drainage pump and the maximum value of the output power of the generator set when the current lift of each drainage pump does not exceed the maximum allowable lift of each drainage pump;
and the water pump control module is used for adjusting the maximum value of the input current of each drainage water pump according to the optimal operating power of each drainage water pump to control the rotation speed and flow of each drainage water pump.
In another aspect of the present invention, an electronic device is further provided, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the program, the method for controlling a flood drainage emergency rescue pump is implemented.
In another aspect of the present invention, a storage medium is further provided, where the storage medium includes a stored program, and when the program runs, the storage medium controls a device in which the storage medium is located to execute the drainage emergency pump control method.
In another aspect of the present invention, a flood drainage emergency vehicle is provided, which includes:
at least one drainage pump;
a generator driven by the engine for supplying power;
and the central control unit is respectively in control connection with each drainage pump through a water pump controller and is used for realizing the drainage emergency rescue pump control method.
The invention has the following beneficial effects:
according to the control method for the drainage emergency rescue pump, after the rotation speed and the flow of each drainage water pump are obtained through preliminary calculation based on the drainage quantity estimated value and the self parameter of each drainage water pump, the current power of each drainage water pump is calculated, and the current lift of each drainage water pump is obtained according to the current power of each drainage water pump; when the current lift of each drainage waterlogging water pump does not exceed the maximum allowable lift of each drainage waterlogging water pump, the optimal operating power of each drainage waterlogging water pump can be calculated according to the total power of each drainage waterlogging water pump, the rated power of each drainage waterlogging water pump and the maximum value of the output power of the generator set, so that the maximum value of the input current of each drainage waterlogging water pump is adjusted to control the rotating speed and the flow of each drainage waterlogging water pump. Because the invention takes the total power of all the drainage pumps, the rated power of each drainage pump and the maximum value of the output power of the generator set as limiting values to carry out optimization calculation, the invention solves the problem of reasonable control of the power supply power of the drainage emergency vehicle and the emergency drainage water flow, can control the contradiction between the water pump flow and the lift in the condition of limited power supply, not only reduces the power loss of the emergency power supply, improves the power utilization rate and the drainage efficiency of the emergency power supply, but also shortens the operation time, solves the problem of drainage of emergency at the highest speed, and achieves the goal of finishing the emergency task at the highest speed.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a flow chart of a control method of a drainage emergency rescue pump according to a preferred embodiment of the invention.
Fig. 2 is a sub-flowchart of step S3 in the control method for a drainage emergency rescue pump according to the preferred embodiment of the present invention.
Fig. 3 is a sub-flowchart of step S3 of the control method for a flood drainage emergency rescue pump according to another preferred embodiment of the present invention.
Fig. 4 is a sub-flowchart of step S4 in the control method for a drainage emergency rescue pump according to the preferred embodiment of the present invention.
Fig. 5 is a sub-flowchart of step S5 in the control method for a drainage emergency rescue pump according to the preferred embodiment of the present invention.
Fig. 6 is a schematic diagram of a module of a flood drainage emergency pump control device according to a preferred embodiment of the invention.
Fig. 7 is a schematic block diagram of an electronic device entity according to a preferred embodiment of the present invention.
Fig. 8 is a schematic structural view of a flood drainage emergency vehicle according to a preferred embodiment of the invention.
Fig. 9 is a schematic operation diagram of the flood drainage emergency vehicle according to the preferred embodiment of the invention.
Detailed Description
It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, in a preferred embodiment of the present invention, there is provided a control method for a drainage emergency pump, including the steps of:
s1, acquiring a water discharge amount estimated value corresponding to each drainage pump;
s2, preliminarily calculating to obtain the rotating speed and the flow of each drainage pump based on the drainage quantity estimated value and the self parameter of each drainage pump;
s3, calculating the current power of each drainage pump, and obtaining the current lift of each drainage pump according to the current power of each drainage pump;
s4, when the current lift of each drainage waterlogging water pump does not exceed the maximum allowable lift of each drainage waterlogging water pump, calculating to obtain the optimal operating power of each drainage waterlogging water pump according to the total power of each drainage waterlogging water pump, the rated power of each drainage waterlogging water pump and the maximum value of the output power of the generator set;
and S5, adjusting the maximum value of the input current of each drainage water pump according to the optimal working power of each drainage water pump, and controlling the rotation speed and the flow of each drainage water pump.
According to the control method for the drainage emergency rescue pump, after the rotation speed and the flow of each drainage water pump are obtained through preliminary calculation based on the water displacement prediction value and the self parameter of each drainage water pump, the current power of each drainage water pump is calculated, and the current lift of each drainage water pump is obtained according to the current power of each drainage water pump; when the current lift of each drainage waterlogging water pump does not exceed the maximum allowable lift of each drainage waterlogging water pump, the optimal operating power of each drainage waterlogging water pump can be calculated according to the total power of each drainage waterlogging water pump, the rated power of each drainage waterlogging water pump and the maximum value of the output power of the generator set, so that the maximum value of the input current of each drainage waterlogging water pump is adjusted to control the rotating speed and the flow of each drainage waterlogging water pump. Because the embodiment takes the total power of all the drainage pumps, the rated power of each drainage pump and the maximum value of the output power of the generator set as limiting values to carry out optimization calculation, the problem of reasonable control of the power supply power of the drainage emergency vehicle and the emergency drainage water flow is solved, the problem of contradiction between the water pump flow and the lift can be controlled maximally and reasonably under the condition of limited power supply, the power loss of an emergency power supply is reduced, the power utilization rate and the drainage efficiency of the emergency power supply are improved, the operation time can be shortened, the problem of emergency rescue drainage is solved at the highest speed, and the purpose of finishing the rescue task at the highest speed is achieved.
In a preferred embodiment of the present invention, the flow rate to be drained is controlled according to the rotation speed of the water pump, for example, the rotation speed of the water pump is 1000r/min, the pipe diameter is 300mm, and the output displacement is fixed, for example, 400 cubic/hour, therefore, when the rotation speed and the flow rate of the water pump of each drainage waterlogging water pump are obtained based on the estimated displacement value of each drainage waterlogging water pump and the initial calculation of the parameters thereof, when the blades and the pipe diameter of the same drainage waterlogging water pump are fixed, the rotation speed ni (r/min) and the flow rate Qi (L/min) of the water pump are in a corresponding relationship:
ni (r/min). Varies.. Qi (flow L/min)
As shown in fig. 2, in a preferred embodiment of the present invention, the calculating the current power of each drainage pump and obtaining the current lift of each drainage pump according to the current power of each drainage pump specifically includes the steps of:
s31, according to the voltage U, the current Ii and the power factor of each waterlogging drainage pump
Calculating the current power of each drainage pump:
s32, obtaining the current lift Hi of each drainage waterlogging water pump according to the current power of each drainage waterlogging water pump:
in this embodiment, after the water pump hosepipe was laid, the current lift of drainage water pump can be calculated through the trial run of drainage water pump, calculates according to the following formula:
Pi(KW)＝p(MPa)×Qi(L/min)/60；
and the following steps:
p(MPa)＝ρ×g×Hi；
therefore, there are:
Pi＝ρ×g×Hi×Qi/60
therefore, the following steps are carried out:
Hi＝Pi/ρ×g×Qi×60；
finally, the following is obtained:
as shown in fig. 3, in a preferred embodiment of the present invention, obtaining the current lift of each drainage pump according to the current power of each drainage pump further comprises:
s33, evaluating the current lift Hi of each drainage pump, and judging whether the current lift Hi exceeds the allowable lift range of each drainage pump;
s34, when the current lift Hi of each drainage waterlogging pump does not exceed the allowable lift range of each drainage waterlogging pump, continuing to perform waterlogging drainage operation; otherwise, the lift range of each drainage pump is reduced by adjusting the arrangement of the water belts.
The embodiment also evaluates the current lift Hi of each drainage pump when obtaining the current lift of each drainage pump according to the current power of each drainage pump, mainly judges whether the current lift Hi exceeds the allowable lift range of each drainage pump, only when the current lift Hi of each drainage pump does not exceed the allowable lift range of each drainage pump, the drainage operation can be continued, otherwise, if the current lift Hi of each drainage pump exceeds the allowable lift range of each drainage pump, the lift range of each drainage pump must be reduced by adjusting the water belt arrangement, thereby ensuring the normal operation of each drainage pump.
As shown in fig. 4, in a preferred embodiment of the present invention, the calculating, according to the total power of each drainage pump, the rated power of each drainage pump, and the maximum value of the output power of the generator set, to obtain the optimal operating power of each drainage pump specifically includes the steps of:
s41, if the total power of each waterlogging drainage pump is less than or equal to the maximum value of the output power of the generator set:
∑Pi≤Pd，
controlling each drainage pump to operate according to the respective maximum rotating speed to drain the waterlogging;
s42, if the total power of the drainage waterlogging water pumps is larger than the maximum value of the output power of the generator set:
∑Pi＞Pd，
and adjusting to obtain the optimal operating power of each drainage pump:
Pi＇＝Pi×(Pd/∑Pi)。
in the embodiment, the optimal operating power is determined by the size relation between the total power of all the drainage water pumps and the maximum value of the output power of the generator set, and if the total power of all the drainage water pumps is less than or equal to the maximum value of the output power of the generator set, the output power of the generator set is still remained, so that the drainage water pumps are controlled to operate at the respective maximum rotating speeds to drain the stagnant water, the fastest drainage purpose is achieved, the drainage efficiency is improved, the drainage time is shortened, the power loss of an emergency power supply is reduced, and the utilization rate of the power supply is improved; when the total power of each drainage and waterlogging pump is greater than the maximum output power of the generator set, the output power of the generator set cannot meet the requirement that each drainage and waterlogging pump operates according to the current power due to the limitation of the maximum output power of the generator set, therefore, the embodiment readjusts the optimal operation power of each drainage and waterlogging pump under the condition of limited power supply.
As shown in fig. 5, in a preferred embodiment of the present invention, the adjusting the maximum value of the input current of each drainage pump according to the optimal operating power of each drainage pump controls the rotation speed and the flow rate of each drainage pump, which specifically includes the steps of:
s51, calculating the maximum limit value of the current Ii (A) of each drainage waterlogging water pump according to the optimal working power Pi' of each drainage waterlogging water pump, and carrying out output control on the flow Qi (L/min) of the water pump:
in the embodiment, because the water pump rotation speed and the flow control of the water pump are generally realized by controlling the current of the water pump, after the optimal operation power Pi 'of each drainage water pump is obtained, the current Ii flowing into each drainage water pump is solved by using the physical relationship among the optimal operation power Pi', the voltage U and the power factor, so that each drainage water pump can perform drainage operation according to the required water pump rotation speed and flow, the problem of reasonable control of the power supply power and the emergency drainage water flow is solved, the power loss of the emergency power supply is reduced, the power utilization rate and the drainage efficiency of the emergency power supply are improved, the operation time is shortened, the problem of emergency rescue and drainage is solved at the fastest speed, and the goal of completing the rescue task at the fastest speed is reached.
As shown in fig. 6, another preferred embodiment of the present invention also provides a drainage emergency pump control device, including:
the water displacement estimation module is used for acquiring water displacement estimation values corresponding to the drainage pumps;
the water pump rotating speed and flow calculation module is used for preliminarily calculating the water pump rotating speed and flow of each drainage water pump based on the drainage amount predicted value and the self parameter of each drainage water pump;
the power and lift calculation module is used for calculating the current power of each drainage pump and obtaining the current lift of each drainage pump according to the current power of each drainage pump;
the power optimization module is used for calculating to obtain the optimal operating power of each drainage pump according to the total power of each drainage pump, the rated power of each drainage pump and the maximum value of the output power of the generator set when the current lift of each drainage pump does not exceed the maximum allowable lift of each drainage pump;
and the water pump control module is used for adjusting the maximum value of the input current of each drainage water pump according to the optimal operating power of each drainage water pump to control the rotation speed and flow of each drainage water pump.
As shown in fig. 7, another preferred embodiment of the present invention further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the drainage emergency pump control method when executing the program.
Another preferred embodiment of the present invention further provides a storage medium, which includes a stored program, and when the program runs, the storage medium controls a device in which the storage medium is located to execute the drainage emergency rescue pump control method.
As shown in fig. 8 and 9, another preferred embodiment of the present invention also provides a flood drainage emergency vehicle, including:
four drainage pumps;
a generator driven by the diesel engine for supplying power;
and the central control unit is respectively in control connection with each drainage water pump through a water pump controller and is used for realizing the drainage emergency rescue pump control method.
The emergency flood drainage vehicle comprises a diesel generator set, four water pump controllers, four flood drainage water pumps, a set of central control system, other auxiliary electric equipment and the like.
The diesel generating set generates power to supply all electric equipment, the four water pump controllers are respectively responsible for adjusting the rotating speed ni of the four drainage water pumps to change the flow Qi of the drainage water pump outlet, the power generation power of the generator is Pd, the power supply voltage of the generator is U, the current output by each water pump controller to each motor is Ii, each drainage water pump drains water from different places A, B, C, D needing drainage respectively, the lift of the water outlet of the water pipe is Hi, and the central control unit is used for realizing the drainage emergency rescue pump control method, so that emergency rescue drainage is performed at the highest speed, and the goal of draining accumulated water in the highest response is achieved.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
The functionality of the methods of the above embodiments, if implemented in software functional units and sold or used as a stand-alone product, may be stored in one or more computing device readable storage media. Based on such understanding, part of the contribution of the embodiments of the present invention to the prior art or part of the technical solution may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computing device (which may be a personal computer, a server, a mobile computing device, a network device, or the like) to execute all or part of the steps of the method described in the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A control method for a drainage emergency rescue pump is characterized by comprising the following steps:
acquiring a water displacement estimated value corresponding to each drainage pump;
preliminarily calculating the water pump rotating speed and flow of each drainage pump based on the water discharge prediction value and the parameters of each drainage pump;
calculating the current power of each drainage pump, and obtaining the current lift of each drainage pump according to the current power of each drainage pump;
when the current lift of each drainage waterlogging water pump does not exceed the maximum allowable lift of each drainage waterlogging water pump, calculating to obtain the optimal operating power of each drainage waterlogging water pump according to the total power of each drainage waterlogging water pump, the rated power of each drainage waterlogging water pump and the maximum value of the output power of the generator set;
and adjusting the maximum value of the input current of each drainage pump according to the optimal operating power of each drainage pump to control the rotation speed and flow of each drainage pump.
2. The method for controlling the drainage emergency rescue pump according to claim 1, wherein when the rotation speed and the flow of each drainage pump are obtained through preliminary calculation based on the estimated drainage quantity value and the parameters of each drainage pump, when the blades and the pipe diameters of the same drainage pump are fixed, the rotation speed ni of the pump and the flow Qi are in a corresponding relationship:
ni∝Qi。
3. the method for controlling the drainage emergency rescue pump according to claim 2, wherein the current power of each drainage pump is calculated, and the current lift of each drainage pump is obtained according to the current power of each drainage pump, and the method specifically comprises the following steps:
according to the voltage U, the current Ii and the power factor of each drainage waterlogging pump
Calculating the current power of each drainage pump:
obtaining the current lift Hi of each drainage waterlogging water pump according to the current power of each drainage waterlogging water pump:
wherein rho is a density coefficient, and g is a gravity coefficient.
4. The method for controlling a flood drainage emergency rescue pump according to claim 1, wherein obtaining the current lift of each flood drainage pump according to the current power of each flood drainage pump further comprises:
evaluating the current lift Hi of each drainage pump, and judging whether the current lift Hi exceeds the allowable lift range of each drainage pump;
when the current lift Hi of each drainage waterlogging pump does not exceed the allowable lift range of each drainage waterlogging pump, continuing to perform waterlogging drainage operation; otherwise, the lift range of each drainage pump is reduced by adjusting the arrangement of the water belts.
5. A method for controlling a flood drainage emergency rescue pump according to claim 1, wherein the optimal operating power of each flood drainage pump is calculated according to the total power of each flood drainage pump, the rated power of each flood drainage pump and the maximum value of the output power of the generator set, and the method specifically comprises the following steps:
if the total power of each drainage waterlogging pump is less than or equal to the maximum output power of the generator set:
∑Pi≤Pd，
controlling each drainage pump to operate according to the respective maximum rotating speed to drain the waterlogging;
if the total power of each drainage waterlogging pump is greater than the maximum value of the output power of the generator set:
∑Pi＞Pd，
adjusting to obtain the optimal operating power of each drainage waterlogging pump:
Pi＇＝Pi×(Pd/∑Pi)。
6. the method for controlling the drainage emergency rescue pump according to claim 5, wherein the maximum value of the input current of each drainage pump is adjusted according to the optimal working power of each drainage pump to control the rotation speed and flow rate of each drainage pump, and the method specifically comprises the following steps:
calculating the maximum limit value of the current Ii of each drainage waterlogging water pump according to the optimal operating power Pi' of each drainage waterlogging water pump to carry out flow Qi output control of the water pump:
7. the utility model provides a drainage emergency rescue pump controlling means which characterized in that includes:
the water discharge amount estimation module is used for acquiring water discharge amount estimated values corresponding to the drainage pumps;
the water pump rotating speed and flow calculation module is used for preliminarily calculating the rotating speed and flow of each drainage water pump based on the drainage prediction value and the self parameter of each drainage water pump;
the power and lift calculation module is used for calculating the current power of each drainage pump and obtaining the current lift of each drainage pump according to the current power of each drainage pump;
the power optimization module is used for calculating to obtain the optimal operating power of each drainage pump according to the total power of each drainage pump, the rated power of each drainage pump and the maximum value of the output power of the generator set when the current lift of each drainage pump does not exceed the maximum allowable lift of each drainage pump;
and the water pump control module is used for adjusting the maximum value of the input current of each drainage water pump according to the optimal operating power of each drainage water pump to control the rotation speed and flow of each drainage water pump.
8. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor, when executing the program, implements a drainage emergency pump control method according to any one of claims 1 to 6.
9. A storage medium comprising a stored program, wherein when the program is run, a device on which the storage medium is located is controlled to execute the drainage emergency pump control method according to any one of claims 1 to 6.
10. The utility model provides a drainage emergency tender which characterized in that includes:
at least one drainage pump;
a generator driven by the engine for supplying power;
the central control unit is respectively in control connection with each drainage water pump through a water pump controller and is used for realizing the drainage emergency rescue pump control method according to any one of claims 1 to 6.
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| CN202110106931.XA CN113027738B (en) | 2021-01-27 | 2021-01-27 | Control method, device and equipment for drainage emergency rescue pump and drainage emergency rescue vehicle |
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| CN202110106931.XA CN113027738B (en) | 2021-01-27 | 2021-01-27 | Control method, device and equipment for drainage emergency rescue pump and drainage emergency rescue vehicle |
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| CN113027738B true CN113027738B (en) | 2022-11-29 |
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Citations (6)
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| CN104141603A (en) * | 2014-06-24 | 2014-11-12 | 赛莱默(中国)有限公司 | Water pump control system with energy saving function |
| CN104612954A (en) * | 2015-01-26 | 2015-05-13 | 珠海格力电器股份有限公司 | Water pump control method and device |
| KR101753891B1 (en) * | 2016-11-28 | 2017-07-19 | (주)대우건설 | Apparatus and method of reduced operation for power consumption of parallel operation pump |
| CN108832864A (en) * | 2018-04-09 | 2018-11-16 | 上海勘测设计研究院有限公司 | A kind of drainage pumping stations asynchronous motor reactive compensation analysis calculation method |
| CN110345055A (en) * | 2019-07-03 | 2019-10-18 | 东莞市水利勘测设计院有限公司 | A kind of drainage pumping stations water drainage amount information monitoring method and system |
| CN111859620A (en) * | 2020-06-17 | 2020-10-30 | 扬州大学 | Pump station single unit variable speed optimized operation method based on unit rotating speed |
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- 2021-01-27 CN CN202110106931.XA patent/CN113027738B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141603A (en) * | 2014-06-24 | 2014-11-12 | 赛莱默(中国)有限公司 | Water pump control system with energy saving function |
| CN104612954A (en) * | 2015-01-26 | 2015-05-13 | 珠海格力电器股份有限公司 | Water pump control method and device |
| KR101753891B1 (en) * | 2016-11-28 | 2017-07-19 | (주)대우건설 | Apparatus and method of reduced operation for power consumption of parallel operation pump |
| CN108832864A (en) * | 2018-04-09 | 2018-11-16 | 上海勘测设计研究院有限公司 | A kind of drainage pumping stations asynchronous motor reactive compensation analysis calculation method |
| CN110345055A (en) * | 2019-07-03 | 2019-10-18 | 东莞市水利勘测设计院有限公司 | A kind of drainage pumping stations water drainage amount information monitoring method and system |
| CN111859620A (en) * | 2020-06-17 | 2020-10-30 | 扬州大学 | Pump station single unit variable speed optimized operation method based on unit rotating speed |
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