CN109885013B - Pump station system safety control method and device for hydraulic engineering and pump station system - Google Patents

Abstract

The invention discloses a pump station system safety control method, a device and a pump station system for hydraulic engineering, wherein the method comprises the following steps: detecting the running state of the pump station system in real time after the pump station system is started; judging whether the pump station system reaches a water hammer effect triggering risk threshold or not according to the running state; if so, acquiring the current water body flow velocity in the first pipeline measured by the flow velocity meter; and if the current water flow rate reaches a preset flow rate threshold value, controlling the plurality of partition valves to execute asynchronous closing operation, cutting the first pipeline into a plurality of mutually isolated spaces, and blocking the water body from flowing in the first pipeline. According to the method, when the risk of triggering the water hammer effect in the pump station system is detected, and the current water flow rate reaches the preset flow rate threshold value, the plurality of separating valves are controlled to automatically execute asynchronous closing operation, so that the risk can be effectively predicted, and the phenomenon of the water hammer effect caused by rapidly cutting off the water flow can be effectively avoided due to the fact that the plurality of separating valves are asynchronously closed.

Description

Pump station system safety control method and device for hydraulic engineering and pump station system

Technical Field

The invention relates to the technical field of hydraulic engineering, in particular to a pump station system safety control method and device for hydraulic engineering and a pump station system.

Background

The water conservancy project is a project constructed for controlling and allocating surface water and underground water in the nature to achieve the purpose of benefiting and removing harm. In hydraulic engineering, when the water resource of low water level needs to be scheduled to high water level, it is often needed to be realized through a pump station system. Some large-scale pumping station systems often include multiple pumping stations with different geographic positions at different heights, and certain height differences often exist among the pumping stations at different levels. When the water pump pumps water to a high place, if certain emergency faults occur, the water pump cannot continue pumping water, the water flow direction is rapidly changed, the pipeline system of the pump station is closed, the water flow is rapidly changed instantly, the water hammer effect is caused, and great impact damage can be caused to pipelines, water pumps and the like in the pump station system.

In the prior art, in order to prevent or reduce the water hammer effect, the problem is often solved by additionally arranging a water hammer eliminator in a pump station system. However, the higher cost of the water hammer eliminator often causes the increase of the cost of the whole project, and how to effectively reduce the occurrence of the water hammer effect under the condition that a special water hammer eliminator is not additionally arranged for a plurality of old pump stations without installing the water hammer eliminator becomes a problem to be solved urgently in the field.

Disclosure of Invention

The embodiment of the invention provides a pump station system safety control method and device for hydraulic engineering and a pump station system, which can be used for prejudging in advance and effectively reducing the influence of a water hammer effect, so that the safety of the pump station system is protected, and the pump station system is low in cost and high in practical value.

In one aspect, an embodiment of the present invention provides a safety control method for a pump station system used in hydraulic engineering, where the pump station system at least includes multiple stages of pump stations with different geographic heights, where each stage of the pump station is at least provided with a first pipeline, a flow meter, and multiple partition valves, the first pipeline is used for conducting water drainage between two adjacent stages of pump stations, the flow meter is arranged inside the first pipeline and is used for measuring a water flow rate in the first pipeline, the multiple partition valves are dispersedly arranged on preset positions of a side wall of the first pipeline, when the partition valves are in an off state, water in the first pipeline is communicated with each other, and when the partition valves are in an off state, the first pipeline is cut into multiple mutually isolated spaces to block water from flowing in the first pipeline, and the method includes:

detecting the running state of the pump station system in real time after the pump station system is started;

judging whether the pump station system reaches a water hammer effect triggering risk threshold or not according to the running state;

if so, acquiring the current water body flow velocity in the first pipeline measured by the flow velocity meter;

and if the current water flow rate reaches a preset flow rate threshold value, controlling the plurality of partition valves to execute asynchronous closing operation, cutting the first pipeline into a plurality of mutually isolated spaces, and blocking the water body from flowing in the first pipeline.

Optionally, the pump station further includes: water pump, motor and electrical control system, the running state of pump station system includes at least: at least one of performance parameters of the water pump, whether the water pump stops rotating, performance parameters of the motor, whether the motor stops rotating, electrical parameters of the electrical control system and whether a main loop of the electrical control system is powered off; according to the running state, whether the pump station system reaches a water hammer effect triggering risk threshold value is judged, and the method comprises the following steps:

and if detecting that the performance parameter of the water pump reaches a first risk threshold, the water pump stops rotating, the performance parameter of the motor reaches a second risk threshold, the motor stops rotating, the electrical parameter of the electrical control system reaches a third risk threshold, and the main loop of the electrical control system is powered off, judging that the pump station system reaches a water hammer effect triggering risk threshold.

Optionally, before obtaining the current water flow rate in the first pipeline measured by the flow meter, the method further comprises:

determining the geographical height corresponding to each stage of pump station in the pump station system;

respectively calculating the difference of the geographic heights between two adjacent stages of pump stations to obtain the pipeline lift of the first pipeline between the adjacent pump stations;

and if the pipeline lift reaches a preset height threshold value, executing the step of acquiring the current water body flow velocity in the first pipeline measured by the flow velocity meter.

Optionally, after obtaining the current water flow rate in the first pipeline measured by the flow meter, the method further comprises:

acquiring pump station identifications corresponding to two adjacent stages of pump stations with pipeline lifts reaching a preset height threshold value;

and feeding back the pump station identification to a master control system of the electrical control system so that the master control system feeds back a trigger instruction to a corresponding flow meter according to the pump station identification.

Optionally, the flow meter is an intelligent flow meter, and the initial operating state of the intelligent flow meter at least includes: the measurement state and the non-measurement state, the obtaining of the current water body flow velocity in the first pipeline measured by the flow velocity meter, includes:

if the initial working state of the intelligent flow meter is a measuring state, the intelligent flow meter directly reads the current water flow rate measured in the intelligent flow meter after receiving a trigger instruction fed back by the main control system, and feeds back the read current water flow rate to the main control system;

if the initial working state of the intelligent flow meter is a non-measurement state, after receiving a trigger instruction fed back by the main control system, the intelligent flow meter triggers the initial working state of the intelligent flow meter to be switched into a measurement state, measures the current water flow rate, and feeds back the measured current water flow rate to the main control system.

Optionally, before controlling the plurality of partition valves to perform the asynchronous closing operation, the method further comprises:

selecting a target closing mode for closing the plurality of partition valves from a plurality of preset closing modes, wherein each closing mode at least comprises the following steps: the closing sequence refers to the sequence of closing the plurality of partition valves, and the closing speed refers to how long each partition valve completes closing.

Optionally, the selecting a target closing mode for closing the plurality of partition valves from a plurality of preset closing modes includes:

determining a closing sequence of closing the plurality of partition valves one by one from top to bottom in a plurality of preset closing modes as the target closing sequence; determining, as the target closing speed, a closing speed at which a closing speed of each of the plurality of partition valves is different from each other;

and selecting a closing mode corresponding to the target closing sequence and the target closing speed as a target closing mode adopted for closing the plurality of partition valves.

Optionally, the controlling the plurality of partition valves to perform an asynchronous closing operation includes:

controlling the plurality of partition valves to perform asynchronous closing operations according to the target closing sequence and the target closing speed in the selected target closing mode.

Optionally, before controlling the plurality of partition valves to perform the asynchronous closing operation, the method further comprises:

acquiring a pipeline lift corresponding to the first pipeline and the caliber size of the first pipeline;

calculating the water capacity corresponding to the first pipeline according to the pipeline lift and the caliber size;

calculating the maximum impact force generated by the water body according to the water capacity and the preset maximum flow velocity of the water body in the first pipeline;

determining a cutting value corresponding to the first pipeline according to the maximum impact force and a tolerance impact force of the first pipeline, wherein the tolerance impact force is a safety impact limit value which can be borne by the first pipeline, and the cutting value is the number of mutually isolated spaces which divide the first pipeline into spaces at uniform intervals;

and determining the number of the separating valves according to the cutting value, and arranging the corresponding number of separating valves at preset positions of the side wall of the first pipeline.

Optionally, a corresponding number of partition valves are disposed at preset positions on the side wall of the first pipeline, and the partition valves include:

and alternately arranging a plurality of partition valves which are arranged in a dispersed manner at equal intervals on the opposite side walls of the first pipeline according to the number of the partition valves, so that one partition valve is deployed at each preset position of the first pipeline which is uniformly arranged.

Optionally, a corresponding number of partition valves are disposed at preset positions on the side wall of the first pipeline, and the partition valves include: and alternately arranging a plurality of separating valves which are arranged in a scattered manner according to the number of the separating valves on the opposite side walls of the first pipeline at preset intervals, wherein at least one distance interval in the distance intervals between every two adjacent separating valves is different from the distance intervals between the rest separating valves, so that one separating valve is deployed on each preset position of the first pipeline which is not uniformly arranged.

Optionally, the pump station further comprises a timer, and after controlling the plurality of separation valves to perform the asynchronous closing operation, the method further comprises:

starting timing by adopting the timer from the time when the asynchronous closing operation is finished;

and when the timing time of the timer reaches preset time, controlling the plurality of partition valves to execute asynchronous opening operation so as to enable the water bodies in the plurality of mutually isolated spaces to be mutually communicated in the first pipeline, wherein the asynchronous opening operation corresponds to the execution process of the asynchronous closing operation.

Optionally, the pump station system further includes: the bypass valve is arranged on the second pipeline and is different from the position of the separation valve, the bypass valve is connected with a reservoir of an adjacent subordinate pump station through the second pipeline, the generator set is arranged below a first pipeline connecting the current pump station and the subordinate pump station and is positioned in the reservoir of the subordinate pump station, and the storage battery is connected with the electric control system, the method further comprises the following steps:

after the plurality of partition valves execute asynchronous opening operation, the bypass valve is driven to open, the water body in the first pipeline is guided to a reservoir of an adjacent lower-level pump station through the bypass valve and the second pipeline, and the generator set is impacted to generate electricity through the water flow speed generated in the process that the water body is guided to the adjacent lower-level pump station from the current-level pump station, so that electric energy is obtained;

and feeding back and storing the electric energy into the storage battery, and using the electric energy of the storage battery as a standby power supply for supplying the electric control system.

On the other hand, an embodiment of the present invention provides a pump station system safety control device for hydraulic engineering, where the pump station system at least includes multiple stages of pump stations with different geographic heights, where each stage of the pump station is at least provided with a first pipeline, a flow meter, and multiple partition valves, the first pipeline is used for conducting water drainage between two adjacent stages of pump stations, the flow meter is arranged inside the first pipeline and is used for measuring a water flow rate in the first pipeline, the multiple partition valves are dispersedly arranged on preset positions of a side wall of the first pipeline, when the partition valves are in an off state, water in the first pipeline is communicated with each other, and when the partition valves are in an off state, the first pipeline is cut into multiple mutually isolated spaces to block water from flowing in the first pipeline, and the device includes:

the detection unit is used for detecting the running state of the pump station system in real time after the pump station system is started;

the judging unit is used for judging whether the pump station system reaches a water hammer effect triggering risk threshold value or not according to the running state;

the first acquisition unit is used for acquiring the current water body flow velocity in the first pipeline measured by the flow velocity meter when the pump station system reaches a water hammer effect triggering risk threshold value;

and the first control unit is used for controlling the plurality of partition valves to execute asynchronous closing operation when the current water body flow rate reaches a preset flow rate threshold value, cutting the first pipeline into a plurality of mutually isolated spaces, and blocking the water body from flowing in the first pipeline.

In a third aspect, an embodiment of the present invention provides a pump station system, where the pump station system is any one of the pump station systems described above, a partition valve disposed on a first pipeline of the pump station system is externally wrapped with a waterproof elastic material, and a plurality of staggered convexo-concave portions or reticulate portions are disposed outside the waterproof elastic material.

In a fourth aspect, an embodiment of the present invention provides another pump station system, where the pump station system is any one of the pump station systems described above, in the partition valve provided on the first pipeline of the pump station system, a valve part of at least one partition valve is a grid structure, and a cap capable of being freely turned up is provided at a position corresponding to each grid structure, so as to reduce an impact force generated when a water body flows through the grid structure by blocking of the cap.

The application provides a pump station system safety control method, device and pump station system for hydraulic engineering, the pump station system includes the multistage pump station of geographical height difference at least, wherein, is provided with first pipeline, velocity of flow meter and a plurality of partition valve in every stage pump station at least, first pipeline is used for carrying out the water drainage between adjacent two-stage pump station, the velocity of flow meter set up in inside the first pipeline, be used for measuring the water velocity of flow in the first pipeline, a plurality of partition valve dispersion arrange in on the preset position of first pipeline lateral wall, during the partition valve off-state, water in the first pipeline link up each other, during the partition valve off-state, will first pipeline cutting is a plurality of mutual isolation's space, blocks the water and is in flow in the first pipeline. Wherein, the method comprises the following steps: detecting the running state of the pump station system in real time after the pump station system is started; judging whether the pump station system reaches a water hammer effect triggering risk threshold or not according to the running state; if so, acquiring the current water body flow velocity in the first pipeline measured by the flow velocity meter; and if the current water flow rate reaches a preset flow rate threshold value, controlling the plurality of partition valves to execute asynchronous closing operation, cutting the first pipeline into a plurality of mutually isolated spaces, and blocking the water body from flowing in the first pipeline. According to the method, when the risk of triggering the water hammer effect in the pump station system is detected, and the current water flow rate reaches the preset flow rate threshold value, the plurality of separating valves are controlled to automatically execute asynchronous closing operation, so that the risk can be effectively predicted, and the phenomenon of the water hammer effect caused by rapidly cutting off the water flow can be effectively avoided due to the fact that the plurality of separating valves are asynchronously closed.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is a flowchart of a pump station system safety control method for hydraulic engineering according to an embodiment of the present invention;

fig. 2 is a block diagram of a pump station system safety control device for hydraulic engineering according to an embodiment of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

The following brief explanation of the terms and expressions involved in the present patent application:

water hammer (or water hammer): the phenomenon that in a closed pipeline system, pipeline or pump, large pressure fluctuation is caused and vibration is caused due to the fact that the flow of fluid changes rapidly, the instantaneous pressure can greatly exceed the normal pressure, and destructive influence is often generated.

The solution of the present patent application is explained below by means of specific examples.

An embodiment of the present patent application provides a pump station system safety control method for hydraulic engineering, as shown in fig. 1, it should be explained that the pump station system at least includes multiple stages of pump stations with different geographic heights, wherein, each stage of pump station is at least provided with a first pipeline, a flow rate meter and a plurality of separation valves, the first pipeline is used for conducting water body drainage between two adjacent stages of pump stations, the flow rate meter is arranged inside the first pipeline and is used for measuring the water body flow rate in the first pipeline, the separation valves are dispersedly arranged on preset positions of a side wall of the first pipeline, when the separation valves are in a disconnection state, water bodies in the first pipeline are communicated with each other, and when the separation valves are in a closing state, the first pipeline is cut into a plurality of mutually isolated spaces and water bodies are blocked to flow in the first pipeline.

The embodiment of the invention provides a pump station system safety control method for hydraulic engineering, which mainly comprises the following steps 101 to 105:

step 101: detecting the running state of the pump station system in real time after the pump station system is started;

step 102: judging whether the pump station system reaches a water hammer effect triggering risk threshold or not according to the running state;

if the determination result in the step 102 is yes, step 103 is executed: acquiring the current water body flow velocity in the first pipeline measured by the flow velocity meter;

step 104: judging whether the current water flow rate reaches a preset flow rate threshold value or not;

if the determination result in the step 104 is yes, execute step 105: and controlling the plurality of partition valves to perform asynchronous closing operation, cutting the first pipeline into a plurality of mutually isolated spaces, and blocking the water body from flowing in the first pipeline.

For example, a first-level pump station, a second-level pump station and a third-level pump station exist in a pump station system, wherein the three-level pump stations have different geographic position heights (for short, geographic heights), and in practice, the geographic height of the third-level pump station is usually the highest, the geographic height of the second-level pump station is the second highest, and the geographic height of the first-level pump station is usually the lowest. In hydraulic engineering, the scheduling of water resource will be realized, often need be through the water pump with the water resource from the lower one-level pump station of geographical position to the second grade pump station, from the second grade pump station to the tertiary pump station again, and then carry out water resource transport or distribution to the target region through the tertiary pump station.

In the embodiment of the present invention, the partition valve may be any valve body capable of being closed and opened, such as an electromagnetic valve, a pressure valve, a pneumatic mechanical valve, and the like, and the embodiment of the present invention is not particularly limited. Wherein the switching speed of the separating valves and the switching sequence of each separating valve can be controlled by control commands.

The running state of the pump station system can be realized by detecting relevant running parameters of the pump station system. For example, detecting the operating state of the pump station system may include: detecting any one or more of performance parameters of the water pump, whether the water pump stops rotating, performance parameters of the motor, whether the motor stops rotating, electrical parameters of the electrical control system and whether a main loop of the electrical control system is powered off.

In the normal operation process of the pump station system, related operation parameters are required to be within a normal range, and when some or some operation parameters are abnormal, the risk that the water hammer effect occurs in the pump station system is indicated. In this embodiment, the performance parameters of the water pump and the motor and the electrical parameters of the electrical control system are mainly detected, for example, whether the performance parameters of the water pump or the motor, such as vibration amplitude, temperature rise and rotation speed, are within a preset normal range, and whether the electrical parameters of the electrical control system, such as current, voltage and power consumption, are within a normal range are detected.

In other cases, considering that the motor needs to drive the water pump to supply water to the pump station in the normal operation process of the pump station system, the detection that the motor is in a stop state or the water pump is in the stop state is usually regarded as that equipment is in failure, and at the moment, the water hammer effect is very easily induced; in addition, the electrical control system needs to be in an operating state in real time, and when a main loop of the electrical control system is powered off, corresponding control instructions cannot be sent in time after risks are found, the water body flow is cut off, and therefore the water hammer effect cannot be prevented from occurring in advance. Therefore, whether the motor and the water pump are in a stop state or not needs to be detected, and whether the main loop of the electric control system is powered off or not needs to be detected.

In another embodiment of the present invention, the pump station may further include: water pump, motor and electrical control system according to running state, judges whether pump station system reaches water hammer effect and triggers the risk threshold value, includes: and if detecting that the performance parameter of the water pump reaches a first risk threshold, the water pump stops rotating, the performance parameter of the motor reaches a second risk threshold, the motor stops rotating, the electrical parameter of the electrical control system reaches a third risk threshold, and the main loop of the electrical control system is powered off, judging that the pump station system reaches a water hammer effect triggering risk threshold.

It should be noted that the first risk threshold, the second risk threshold, and the third risk threshold are risk critical values preset according to actual operating conditions of the pump station system, and when the risk threshold is reached, it is considered that there is a risk of triggering the water hammer effect. The first risk threshold is not only a numerical value, but one or more risk thresholds may be set according to the specifically detected performance parameter, for example, different risk critical values are set for the vibration amplitude, the temperature rise and the rotation speed of the water pump, and the setting of the second risk threshold and the third risk threshold refers to the first risk threshold. Through the setting of the risk threshold, when the risk triggered by the water hammer effect exists in the relevant operation parameters, the risk can be identified in time and the control is implemented, so that the risk is effectively prevented.

In another embodiment of the present invention, before obtaining the current water flow rate in the first pipeline measured by the flow meter, the method may further include:

determining the geographical height corresponding to each stage of pump station in a pump station system;

respectively calculating the difference of the geographic heights between two adjacent stages of pump stations to obtain the pipeline lift of the first pipeline between the adjacent pump stations;

and if the pipeline lift reaches a preset height threshold value, executing the step of acquiring the current water body flow velocity in the first pipeline measured by the flow velocity meter.

The geographical height of each stage of pump station in the pump station system can be determined according to the altitude of the position of the pump station, and the height (also called as a pipeline lift) of a first pipeline for conducting water resource drainage between the two stages of pump stations can be calculated by calculating the difference value of the geographical heights between the two adjacent stages of pump stations. Because the pipeline lift and the severity of the water hammer effect are in a positive correlation relationship, when the pipeline lift is small, the serious water hammer effect cannot be generated even if the flow direction of the water body is instantaneously changed, and special treatment is not needed at the moment; on the contrary, when the pipeline lift is large, a serious water hammer effect may occur, at this time, the water flow rate needs to be further detected, and if the water flow rate is low, the influence of the water hammer effect is not great, and special treatment may not be performed; if the pipeline lift is large and the water flow rate is high, a serious water hammer effect is often induced, and measures are required to be taken in time to prevent serious damage.

In another embodiment of the present invention, after obtaining the current water flow rate in the first pipeline measured by the flow meter, the method may further comprise:

acquiring pump station identifications corresponding to two adjacent stages of pump stations with pipeline lifts reaching a preset height threshold value;

and feeding back the pump station identification to a master control system of the electrical control system so that the master control system feeds back a trigger instruction to the corresponding flow meter according to the pump station identification.

The pump station identifier corresponding to each pump station can be preset, for example, recognizable symbols such as numbers or letters are used as the pump station identifier, when the pipeline lift reaches a preset height threshold value, the risk of triggering the water hammer effect is considered to exist, the pump station identifier can be fed back to the main control system, so that the main control system can determine which pump station has the risk, and then the triggering instruction is fed back to the flow rate meter corresponding to the pump station, so that the water flow rate value in the pump station pipeline can be further obtained.

In another embodiment of the present invention, the flow rate meter according to any of the above descriptions may be an intelligent flow rate meter, and the initial operating state of the intelligent flow rate meter at least includes: measuring state and non-measuring state, obtain the current water velocity of flow in the first pipeline of current velocity of flow meter measurement, include:

if the initial working state of the intelligent current meter is a measuring state, the intelligent current meter directly reads the current water flow rate measured in the current meter after receiving a trigger instruction fed back by the main control system, and feeds back the read current water flow rate to the main control system;

if the initial working state of the intelligent current meter is a non-measurement state, after the intelligent current meter receives a trigger instruction fed back by the main control system, the initial working state of the intelligent current meter is triggered to be switched to a measurement state, the current water flow rate is measured, and the measured current water flow rate is fed back to the main control system.

In this embodiment, the intelligent flow meter with two working states can be used to measure the flow velocity of the water body, wherein the initial working state (i.e. normal state) of the intelligent flow meter can be set as required. For example, if the initial working state of the intelligent flow meter is a non-measurement state, the intelligent flow meter is in a sleep mode (or called a standby mode) in a normal state, and does not measure the flow rate of the water body, and after receiving a trigger instruction, the intelligent flow meter is awakened, and the working state is switched to a measurement state to implement the measurement of the flow rate of the water body, so that the energy can be effectively saved, and the service life of the intelligent flow meter is prolonged; on the contrary, the initial working state of the intelligent current meter is the measurement state, which means that the intelligent current meter measures the current of the water body in real time after being started, and the current of the water body measured in real time can be directly fed back after receiving the trigger signal, so that the switching of the working state is not needed.

In another embodiment of the present invention, before controlling the plurality of isolation valves to perform the asynchronous closing operation, the method further comprises: selecting a target closing mode adopted for closing a plurality of partition valves from a plurality of preset closing modes, wherein each closing mode at least comprises the following steps: the closing sequence refers to the sequence of closing the plurality of separating valves, and the closing speed refers to how long each separating valve completes closing. The selecting a target closing mode for closing the plurality of partition valves from among a plurality of preset closing modes may specifically include:

determining a closing sequence of closing the plurality of partition valves one by one from top to bottom in a plurality of preset closing modes as a target closing sequence; determining a closing speed, which is different from each other in a closing speed of each of the plurality of partition valves, as a target closing speed;

and selecting a closing mode corresponding to the target closing sequence and the target closing speed as a target closing mode adopted for closing the plurality of partition valves.

In this embodiment, for convenience of use, a plurality of closing modes may be preset, and may be selected as needed in use, wherein each closing mode may be determined by a combination of a closing speed and a closing sequence. When the closing mode is selected, the closing sequence is preferably in a mode that the closing sequence is closed one by one from top to bottom and the closing speed of each partition valve is different from each other, and the corresponding closing mode is determined as the closing mode to be selected, so that the closing modes of each partition valve are different from each other in the closing process of the plurality of partition valves, the asynchronous effect is better, and the water hammer effect eliminating effect is further improved.

In another embodiment of the present invention, controlling a plurality of partition valves to perform an asynchronous closing operation includes: and controlling the plurality of partition valves to perform asynchronous closing operation according to the target closing sequence and the target closing speed in the selected target closing mode.

In another embodiment of the present invention, before controlling the plurality of partition valves to perform the asynchronous closing operation, the method may further include:

acquiring a pipeline lift corresponding to the first pipeline and the caliber size of the first pipeline;

calculating the water capacity corresponding to the first pipeline according to the pipeline lift and the caliber size;

calculating the maximum impact force generated by the water body according to the water capacity and the preset maximum flow velocity of the water body in the first pipeline;

determining a cutting value corresponding to the first pipeline according to the maximum impact force and the tolerance impact force of the first pipeline, wherein the tolerance impact force is a safe impact limit value which can be borne by the first pipeline, and the cutting value is the number of mutually isolated spaces which divide the first pipeline into spaces at uniform intervals;

and determining the number of the separating valves according to the cutting value, and arranging the corresponding number of separating valves at the preset position of the side wall of the first pipeline.

The preset maximum flow velocity of the water body in the first pipeline can be a preset empirical value, or a simulated inference value obtained when the direction of the water body is instantaneously changed due to the fact that external resistance is suddenly applied to the water body in the high-speed flowing process of the water body under the extreme condition of software simulation. Because each section of pipeline has a safe impact limit value which can be born, when the impact force of the water body is higher than the safe impact limit value, the pipeline is considered to be damaged to a certain extent. Considering that the impact force on the pipelines is larger when the water bodies in the first pipelines are connected into a whole, in order to reduce the impact force of the water bodies, the water bodies in the first pipelines can be separated into a plurality of mutually isolated parts, so that the impact force of the water bodies is reduced or partially offset. Through the mode, the first pipeline can be determined to be cut into a plurality of mutually isolated spaces, so that the impact force borne by the pipeline can not exceed the safety impact limit value.

In another embodiment of the present invention, a corresponding number of partition valves are provided at predetermined positions on a side wall of the first pipeline, including: according to the number of the partition valves, a plurality of partition valves which are arranged in a scattered mode are alternately arranged on the opposite side walls of the first pipeline at equal intervals, so that one partition valve is arranged on each preset position of the first pipeline which is uniformly arranged. Wherein, on the relative lateral wall of first pipeline, indicate two mutually opposite lateral walls of first pipeline. For example, the first pipeline has a cubic structure, and one partition valve is disposed on a first side surface of the cube, and then a second partition valve is disposed on the other side surface parallel to the first side surface at a certain interval, thereby ensuring that the partition valves are alternately arranged. When the first pipe is of cylindrical configuration, the separating valves are arranged alternately on mutually opposite sides of the cylinder in the manner described above. In this embodiment, each partition valve is evenly arranged, can carry out even cutting with the water.

In another embodiment of the present invention, a plurality of partition valves are alternately disposed at predetermined intervals on opposite sidewalls of the first pipeline according to the number of the partition valves, wherein at least one of the distance intervals between every two adjacent partition valves is different from the distance intervals between the remaining partition valves, so that one partition valve is disposed at each predetermined position of the non-uniform arrangement of the first pipeline. In this embodiment, the partition valves may also be arranged in a non-uniform arrangement, so as to improve the difference in volume between the water bodies of the respective parts after cutting, and improve the asynchronous effect when the partition valves are closed.

In another embodiment of the present invention, the pump station further includes a timer, and after controlling the plurality of partition valves to perform the asynchronous closing operation, the method further includes:

starting timing by adopting a timer from the time when the asynchronous closing operation is finished;

and when the timing time of the timer reaches the preset time, controlling the plurality of separating valves to execute asynchronous opening operation so as to enable the water bodies in the plurality of mutually isolated spaces to be mutually communicated in the first pipeline, wherein the asynchronous opening operation corresponds to the execution process of the asynchronous closing operation.

The asynchronous opening operation process is the reverse process of the asynchronous closing operation process, for example, the separation valve is closed from top to bottom in the asynchronous closing process, and the separation valve is opened from bottom to top in the opening process.

In another embodiment of the present invention, the pump station system may further include: the bypass valve is arranged on the second pipeline and is different from the position of the separating valve, the bypass valve is connected with a reservoir of an adjacent subordinate pump station through the second pipeline, the generator set is arranged below a first pipeline connecting the current pump station and the subordinate pump station and is positioned in the reservoir of the subordinate pump station, and the storage battery is connected with an electrical control system, the method further comprises the following steps:

after the plurality of partition valves perform asynchronous opening operation, the bypass valve is driven to open, water in the first pipeline is drained to a reservoir of an adjacent lower-level pump station through the bypass valve and the second pipeline, and a generator set is impacted to generate electricity through the water flow speed generated in the process that the water is drained from the current-level pump station to the adjacent lower-level pump station, so that electric energy is obtained;

the electric energy is fed back and stored in the storage battery, and the electric energy of the storage battery is used as a standby power supply for supplying the electric control system.

It should be noted that, in a wilderness area far away from a city in most places of a hydraulic engineering project, the situation of insufficient electric energy supply often exists, and in consideration of the harsh field environment, even if the electric energy is supplied by electric power equipment, the power supply fault such as power failure and the like is easily caused by natural environmental factors. Because the pump station system needs to feed back the operation condition data of the pump station system to the electric control system through the detection system in real time after being put into operation, namely, the electric control system, the detection system and the like need to continuously supply electric energy, if the power failure condition occurs, engineering project accidents are easily caused, and huge economic loss is caused.

In the embodiment of the invention, because the geographical height difference exists between each stage of pump stations, a certain amount of water is often stored in the first pipeline after the risk treatment of the water hammer effect is carried out, and at the moment, if the drainage treatment is not carried out, the water falls back to the reverse impact water pump easily, so that the water pump is damaged. As a solution, the water body can be drained to the reservoir of the lower-stage pump station through the second pipeline through the bypass valve arranged on the first pipeline, the potential energy generated in the water body drainage process is used for impacting the generator set to generate electricity, the electric energy generated by electricity generation is stored through the storage battery and is used as a standby power supply of the electrical control system, and therefore when the main power supply is in power failure risk, the standby power supply is seamlessly switched to, and the reliability of the system is effectively improved.

The application provides a pump station system safety control method, device and pump station system for hydraulic engineering, the pump station system includes the multistage pump station of geographical height difference at least, wherein, every level be provided with first pipeline, velocity of flow meter and a plurality of partition valve in the pump station at least, first pipeline is used for carrying out the water drainage between adjacent two-stage pump station, the velocity of flow meter set up in inside the first pipeline, be used for measuring the water velocity of flow in the first pipeline, a plurality of partition valve dispersion arrange in on the preset position of first pipeline lateral wall, during the partition valve off-state, water in the first pipeline link up each other, during the partition valve off-state, will first pipeline cutting is a plurality of mutual isolation's space, blocks the water and is in flow in the first pipeline. Wherein, the method comprises the following steps: detecting the running state of the pump station system in real time after the pump station system is started; judging whether the pump station system reaches a water hammer effect triggering risk threshold or not according to the running state; if so, acquiring the current water body flow velocity in the first pipeline measured by the flow velocity meter; and if the current water flow rate reaches a preset flow rate threshold value, controlling the plurality of partition valves to execute asynchronous closing operation, cutting the first pipeline into a plurality of mutually isolated spaces, and blocking the water body from flowing in the first pipeline. According to the method, when the risk of triggering the water hammer effect in the pump station system is detected, and the current water flow rate reaches the preset flow rate threshold value, the plurality of separating valves are controlled to automatically execute asynchronous closing operation, so that the risk can be effectively predicted, and the phenomenon of the water hammer effect caused by rapidly cutting off the water flow can be effectively avoided due to the fact that the plurality of separating valves are asynchronously closed.

Another embodiment of the present patent application provides a pump station system safety control device for hydraulic engineering, as shown in fig. 2, this pump station system includes the multistage pump station of geographical height difference at least, wherein, be provided with first pipeline, velocity of flow meter and a plurality of partition valve in every stage pump station at least, first pipeline is used for carrying out the water drainage between adjacent two-stage pump station, the velocity of flow meter set up in inside the first pipeline for measure the water velocity of flow in the first pipeline, a plurality of partition valves dispersion are arranged on the preset position of first pipeline lateral wall, when separating valve off-state, the water in the first pipeline link up each other, when separating valve off-state, cut first pipeline into a plurality of spaces of mutual isolation, block the water and flow in first pipeline.

The embodiment of the invention provides a pump station system safety control device for hydraulic engineering, which comprises:

the detection unit 201 is used for detecting the running state of the pump station system in real time after the pump station system is started;

the judging unit 202 is used for judging whether the pump station system reaches a water hammer effect triggering risk threshold value according to the running state;

the first obtaining unit 203 is configured to obtain a current water body flow velocity in the first pipeline measured by the flow velocity meter when the pump station system reaches a water hammer effect triggering risk threshold;

the first control unit 204 is configured to control the multiple partition valves to perform asynchronous closing operation when the current water flow rate reaches a preset flow rate threshold value, cut the first pipeline into multiple mutually isolated spaces, and block the water from flowing in the first pipeline.

Optionally, the pump station further includes: water pump, motor and electrical control system, the running state of pump station system includes at least: at least one of performance parameters of the water pump, whether the water pump stops rotating, performance parameters of the motor, whether the motor stops rotating, electrical parameters of the electrical control system and whether a main loop of the electrical control system is powered off;

the judging unit is specifically configured to judge that the pump station system reaches the water hammer effect triggering risk threshold when the detecting unit detects that the performance parameter of the water pump reaches a first risk threshold, the water pump stops rotating, the performance parameter of the motor reaches a second risk threshold, the motor stops rotating, the electrical parameter of the electrical control system reaches a third risk threshold, and the main loop of the electrical control system is powered off.

Optionally, the apparatus further comprises:

the first determining unit is used for determining the geographical height corresponding to each stage of pump station in the pump station system;

the first calculation unit is used for calculating the difference value of the geographic heights between two adjacent stages of pump stations respectively to obtain the pipeline lift of the first pipeline between the adjacent pump stations;

and the triggering unit is used for triggering the first acquisition unit to acquire the current water body flow velocity in the first pipeline measured by the flow velocity meter when the pipeline lift reaches a preset height threshold value.

Optionally, the apparatus further comprises:

the second acquisition unit is used for acquiring pump station identifiers corresponding to two adjacent stages of pump stations with pipeline lifts reaching a preset height threshold value;

and the first feedback unit is used for feeding the pump station identifier back to a master control system of the electrical control system, so that the master control system feeds a trigger instruction back to the corresponding flow meter according to the pump station identifier.

Optionally, the flow meter is an intelligent flow meter, and the initial operating state of the intelligent flow meter at least includes: a measurement state and a non-measurement state, the first acquisition unit including:

the first acquisition module is used for directly reading the current water body flow rate measured in the intelligent flow rate meter after the intelligent flow rate meter receives a trigger instruction fed back by the main control system when the initial working state of the intelligent flow rate meter is a measurement state, and feeding back the read current water body flow rate to the main control system;

and the second acquisition module is used for triggering the initial working state of the intelligent flow meter to be switched into a measurement state after the intelligent flow meter receives the trigger instruction fed back by the main control system when the initial working state of the intelligent flow meter is in a non-measurement state, measuring the current water flow rate, and feeding back the measured current water flow rate to the main control system.

Optionally, the apparatus further comprises:

a selecting unit configured to select a target closing mode for closing the plurality of partition valves from a plurality of preset closing modes, each of the closing modes including at least: the closing sequence refers to the sequence of closing the plurality of partition valves, and the closing speed refers to how long each partition valve completes closing.

Optionally, the selecting unit includes:

the first determining module is used for determining a closing sequence of closing the plurality of partition valves one by one from top to bottom in a plurality of preset closing modes as the target closing sequence;

a second determination module configured to determine, as the target closing speed, a closing speed at which each of the plurality of partition valves is different from each other;

and the selection module is used for selecting the closing mode corresponding to the target closing sequence and the target closing speed as the target closing mode adopted for closing the plurality of partition valves.

Optionally, the first control unit is specifically configured to control the multiple partition valves to perform an asynchronous closing operation according to the target closing sequence and the target closing speed in the selected target closing mode.

Optionally, the apparatus further comprises:

the third acquiring unit is used for acquiring the pipeline lift corresponding to the first pipeline and the caliber size of the first pipeline;

the second calculating unit is used for calculating the water capacity corresponding to the first pipeline according to the pipeline lift and the caliber size;

the third calculating unit is used for calculating the maximum impact force generated by the water body according to the water capacity and the preset maximum flow velocity of the water body in the first pipeline;

the second determining unit is used for determining a cutting value corresponding to the first pipeline according to the maximum impact force and the tolerance impact force of the first pipeline, wherein the tolerance impact force is a safety impact limit value which can be borne by the first pipeline, and the cutting value is the number of mutually isolated spaces which divide the first pipeline into spaces at uniform intervals;

and the setting unit is used for determining the number of the separation valves according to the cutting value and setting the corresponding number of the separation valves at the preset position of the side wall of the first pipeline.

Optionally, the setting unit may include:

the first setting module is used for alternately setting a plurality of partition valves which are arranged in a dispersed mode at equal intervals on the opposite side walls of the first pipeline according to the number of the partition valves, so that one partition valve is deployed at each preset position of the first pipeline which is uniformly arranged.

Optionally, the setting unit may further include:

and the second setting module is used for alternately setting a plurality of separating valves which are arranged in a dispersed mode according to the number of the separating valves on the opposite side walls of the first pipeline and according to preset intervals, wherein at least one distance interval in the distance intervals between every two adjacent separating valves is different from the distance intervals between the rest separating valves, so that one separating valve is arranged on each preset position of the first pipeline in the non-uniform arrangement mode.

Optionally, the pump station further includes a timer, and the apparatus further includes:

the timing unit is used for starting timing from the time when the asynchronous closing operation is finished by adopting the timer;

and the second control unit is used for controlling the plurality of separation valves to execute asynchronous opening operation when the timing time of the timer reaches preset time so as to enable the water bodies in the plurality of mutually isolated spaces to be mutually communicated in the first pipeline, and the asynchronous opening operation corresponds to the execution process of the asynchronous closing operation.

Optionally, the pump station system further includes: bypass valve, generating set and battery, the bypass valve set up in on the second pipeline, and with the position of separating the valve is different, the bypass valve passes through the second pipeline links to each other with the cistern of adjacent subordinate pump station, generating set sets up in the below of connecting the first pipeline of this level pump station and subordinate pump station, and is located in the cistern of subordinate pump station, the battery with electrical control system links to each other, the device still includes:

the execution unit is used for driving the bypass valve to open after the plurality of partition valves execute asynchronous opening operation, guiding the water body in the first pipeline to a reservoir of an adjacent lower-level pump station through the bypass valve and the second pipeline, and impacting the generator set to generate power through the water flow speed generated in the process that the water body is guided to the adjacent lower-level pump station from the current-level pump station to obtain electric energy;

and the second feedback unit is used for feeding back and storing the electric energy in the storage battery, and the electric energy of the storage battery is used as a standby power supply for supplying the electric control system.

Another embodiment of the present application provides a pump station system, which may be the pump station system described in any of the above embodiments, wherein a partition valve disposed on a first pipeline of the pump station system is externally wrapped with a waterproof elastic material, and a plurality of staggered convexo-concave portions or reticulated portions are disposed outside the waterproof elastic material.

It should be noted that, in order to effectively reduce the impact force of the water body on the pipeline, the water pump, the flow rate meter, etc. of the pump station system in the water hammer effect, a waterproof elastic material may be wrapped outside each partition valve, for example: waterproof rubber, waterproof foam, etc., thereby reducing the occurrence of water hammer effect.

In addition, the impact force of the water body can be further relieved by increasing the surface roughness and the surface area of the elastic material. For example, the convex-concave parts which are arranged in a staggered mode can be arranged on the surface of the waterproof elastic material, or the surface of the elastic material is provided with texture structures such as dense reticulate patterns, so that the surface area and the roughness of the elastic material are increased, the impact force of a part of water body is effectively offset, and the effect of the waterproof hammer is improved.

Another embodiment of the present application provides a pump station system, which may be the pump station system described in any of the above embodiments, wherein in the partition valve disposed on the first pipeline of the pump station system, a valve portion having at least one partition valve is a grid structure, and a cap capable of being freely turned up is disposed at a position corresponding to each grid structure, so as to reduce impact force generated when a water body flows through the grid structure by blocking of the cap.

When the partition valve with the grid structure is in a closed state, if the cover cap is not turned up, the water body can be completely blocked from flowing through the partition valve; if the cover cap is turned up, a part of water body can be allowed to flow, the impact force generated when the water body flows can be weakened by considering the blocking effect of each grid boundary blocking part on the water body, in addition, part of the impact force can be offset by the cover cap in the process of switching from the non-turning-up state to the turning-up state under the water flow impact, and therefore the destructiveness of the water hammer effect is effectively reduced.

It should be noted that, the contents of the method embodiment, the apparatus embodiment and the pump station system embodiment provided in this patent application correspond to each other one to one, and the contents related to any embodiment can be cited or combined by other embodiments to form a part of this embodiment. For convenience of description, the present patent application focuses on explaining method embodiments, and reference may be made to related contents in the method embodiments for description of related technical features and schemes of the device embodiments and the pump station system embodiments.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (9)

1. The utility model provides a pump station system safety control method for hydraulic engineering, characterized in that, the pump station system includes the multistage pump station that geographical height is different at least, wherein, every level be provided with first pipeline, current meter and a plurality of partition valve in the pump station at least, first pipeline is used for carrying out the water drainage between adjacent two-stage pump station, current meter set up in first pipeline is inside for measure the water velocity of flow in the first pipeline, a plurality of partition valves dispersion are arranged in on the preset position of first pipeline lateral wall, when separating the valve off-state, the water in the first pipeline link up each other, when separating the valve off-state, cut into a plurality of spaces that keep apart each other, block the water and flow in the first pipeline with the first pipeline, the method includes:

detecting the running state of the pump station system in real time after the pump station system is started;

judging whether the pump station system reaches a water hammer effect triggering risk threshold or not according to the running state;

if so, acquiring the current water body flow velocity in the first pipeline measured by the flow velocity meter;

and if the current water flow rate reaches a preset flow rate threshold value, controlling the plurality of partition valves to execute asynchronous closing operation, cutting the first pipeline into a plurality of mutually isolated spaces, and blocking the water body from flowing in the first pipeline.

2. The method according to claim 1, wherein the pump station further comprises: water pump, motor and electrical control system, the running state of pump station system includes at least: at least one of performance parameters of the water pump, whether the water pump stops rotating, performance parameters of the motor, whether the motor stops rotating, electrical parameters of the electrical control system and whether a main loop of the electrical control system is powered off; according to the running state, whether the pump station system reaches a water hammer effect triggering risk threshold value is judged, and the method comprises the following steps:

and if detecting that the performance parameter of the water pump reaches a first risk threshold, the water pump stops rotating, the performance parameter of the motor reaches a second risk threshold, the motor stops rotating, the electrical parameter of the electrical control system reaches a third risk threshold, and the main loop of the electrical control system is powered off, judging that the pump station system reaches a water hammer effect triggering risk threshold.

3. The method of claim 2, wherein prior to obtaining the current water flow rate in the first pipeline as measured by the anemometer, the method further comprises:

determining the geographical height corresponding to each stage of pump station in the pump station system;

respectively calculating the difference of the geographic heights between two adjacent stages of pump stations to obtain the pipeline lift of the first pipeline between the adjacent pump stations;

if the pipeline lift reaches a preset height threshold value, switching to the step of acquiring the current water body flow velocity in the first pipeline measured by the flow velocity meter; alternatively, the first and second electrodes may be,

after obtaining the current water flow rate in the first pipeline as measured by the anemometer, the method further comprises:

acquiring pump station identifications corresponding to two adjacent stages of pump stations with pipeline lifts reaching a preset height threshold value;

feeding the pump station identification back to a master control system of the electrical control system so that the master control system feeds back a trigger instruction to a corresponding flow meter according to the pump station identification; alternatively, the first and second electrodes may be,

the flowmeter is an intelligent flowmeter, and the initial working state of the intelligent flowmeter at least comprises: the measurement state and the non-measurement state, the obtaining of the current water body flow velocity in the first pipeline measured by the flow velocity meter, includes:

if the initial working state of the intelligent flow meter is a measuring state, the intelligent flow meter directly reads the current water flow rate measured in the intelligent flow meter after receiving a trigger instruction fed back by the main control system, and feeds back the read current water flow rate to the main control system;

if the initial working state of the intelligent flow meter is a non-measurement state, after receiving a trigger instruction fed back by the main control system, the intelligent flow meter triggers the initial working state of the intelligent flow meter to be switched into a measurement state, measures the current water flow rate, and feeds back the measured current water flow rate to the main control system.

4. The method of claim 1, wherein prior to controlling the plurality of isolation valves to perform asynchronous closing operations, the method further comprises:

selecting a target closing mode for closing the plurality of partition valves from a plurality of preset closing modes, wherein each closing mode at least comprises the following steps: the closing sequence refers to the closing sequence of the plurality of separating valves, and the closing speed refers to the time for which each separating valve completes closing;

the selecting a target closing mode for closing the plurality of partition valves from a plurality of preset closing modes comprises:

determining a closing sequence of closing the plurality of partition valves one by one from top to bottom in a plurality of preset closing modes as a target closing sequence; determining a closing speed, which is different from each other in a closing speed of each of the plurality of partition valves, as a target closing speed;

selecting a closing mode corresponding to the target closing sequence and the target closing speed as a target closing mode adopted for closing the plurality of partition valves;

the controlling the plurality of partition valves to perform an asynchronous closing operation includes:

controlling the plurality of partition valves to perform asynchronous closing operations according to the target closing sequence and the target closing speed in the selected target closing mode.

5. The method of claim 3, wherein prior to controlling the plurality of isolation valves to perform asynchronous closing operations, the method further comprises:

acquiring a pipeline lift corresponding to the first pipeline and the caliber size of the first pipeline;

calculating the water capacity corresponding to the first pipeline according to the pipeline lift and the caliber size;

calculating the maximum impact force generated by the water body according to the water capacity and the preset maximum flow velocity of the water body in the first pipeline;

determining a cutting value corresponding to the first pipeline according to the maximum impact force and a tolerance impact force of the first pipeline, wherein the tolerance impact force is a safety impact limit value which can be borne by the first pipeline, and the cutting value is the number of mutually isolated spaces which divide the first pipeline into spaces at uniform intervals;

and determining the number of the separating valves according to the cutting value, and arranging the corresponding number of separating valves at preset positions of the side wall of the first pipeline.

6. The method of claim 5, wherein providing a corresponding number of isolation valves at predetermined locations on the first pipeline sidewall comprises:

according to the number of the partition valves, a plurality of partition valves which are arranged in a dispersed mode are alternately arranged on the opposite side walls of the first pipeline at equal intervals, so that one partition valve is arranged on each preset position of the first pipeline which is uniformly arranged; and/or the presence of a gas in the gas,

and alternately arranging a plurality of separating valves which are arranged in a scattered manner according to the number of the separating valves on the opposite side walls of the first pipeline at preset intervals, wherein at least one distance interval in the distance intervals between every two adjacent separating valves is different from the distance intervals between the rest separating valves, so that one separating valve is deployed on each preset position of the first pipeline which is not uniformly arranged.

7. The method according to claim 4, wherein the pump station further comprises a timer, and after controlling the plurality of isolation valves to perform an asynchronous closing operation, the method further comprises:

starting timing by adopting the timer from the time when the asynchronous closing operation is finished;

and when the timing time of the timer reaches preset time, controlling the plurality of partition valves to execute asynchronous opening operation so as to enable the water bodies in the plurality of mutually isolated spaces to be mutually communicated in the first pipeline, wherein the asynchronous opening operation corresponds to the execution process of the asynchronous closing operation.

8. The method according to claim 7, wherein the pump station system further comprises: the bypass valve is arranged on the second pipeline and is different from the position of the separation valve, the bypass valve is connected with a reservoir of an adjacent subordinate pump station through the second pipeline, the generator set is arranged below a first pipeline connecting the current pump station and the subordinate pump station and is positioned in the reservoir of the subordinate pump station, the storage battery is connected with an electrical control system, and the method further comprises the following steps:

after the plurality of partition valves execute asynchronous opening operation, the bypass valve is driven to open, the water body in the first pipeline is guided to a reservoir of an adjacent lower-level pump station through the bypass valve and the second pipeline, and the generator set is impacted to generate electricity through the water flow speed generated in the process that the water body is guided to the adjacent lower-level pump station from the current-level pump station, so that electric energy is obtained;

and feeding back and storing the electric energy into the storage battery, and using the electric energy of the storage battery as a standby power supply for supplying the electric control system.

9. The utility model provides a pump station system safety control device for hydraulic engineering, a serial communication port, the pump station system includes the multistage pump station of geographical height difference at least, wherein, every level be provided with first pipeline, velocity of flow meter and a plurality of partition valve in the pump station at least, first pipeline is used for carrying out the water drainage between adjacent two-stage pump station, the velocity of flow meter set up in inside the first pipeline, be used for measuring the water velocity of flow in the first pipeline, a plurality of partition valve dispersion arrange in on the preset position of first pipeline lateral wall, when separating valve off-state, the water in the first pipeline link up each other, when separating valve off-state, will first pipeline cutting is a plurality of mutual isolation's space, blocks the water and flows in the first pipeline, the device includes:

the detection unit is used for detecting the running state of the pump station system in real time after the pump station system is started;

the judging unit is used for judging whether the pump station system reaches a water hammer effect triggering risk threshold value or not according to the running state;

the acquiring unit is used for acquiring the current water body flow velocity in the first pipeline measured by the flow velocity meter when the pump station system reaches a water hammer effect triggering risk threshold value;

and the first control unit is used for controlling the plurality of partition valves to execute asynchronous closing operation when the current water body flow rate reaches a preset flow rate threshold value, cutting the first pipeline into a plurality of mutually isolated spaces, and blocking the water body from flowing in the first pipeline.

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