CN113585159A - Ecological water drainage system and control method thereof - Google Patents

Ecological water drainage system and control method thereof Download PDF

Info

Publication number
CN113585159A
CN113585159A CN202111027080.6A CN202111027080A CN113585159A CN 113585159 A CN113585159 A CN 113585159A CN 202111027080 A CN202111027080 A CN 202111027080A CN 113585159 A CN113585159 A CN 113585159A
Authority
CN
China
Prior art keywords
water
data
opening
preset
water level
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111027080.6A
Other languages
Chinese (zh)
Inventor
范小娟
申献平
宋培培
常文凯
任启淼
郝志斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guizhou Survey and Design Research Institute for Water Resources and Hydropower
Original Assignee
Guizhou Survey and Design Research Institute for Water Resources and Hydropower
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guizhou Survey and Design Research Institute for Water Resources and Hydropower filed Critical Guizhou Survey and Design Research Institute for Water Resources and Hydropower
Priority to CN202111027080.6A priority Critical patent/CN113585159A/en
Publication of CN113585159A publication Critical patent/CN113585159A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
    • E02B8/04—Valves, slides, or the like; Arrangements therefor; Submerged sluice gates
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
    • E02B8/04—Valves, slides, or the like; Arrangements therefor; Submerged sluice gates
    • E02B8/045—Valves, slides, or the like; Arrangements therefor; Submerged sluice gates automatically movable

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Sewage (AREA)

Abstract

The embodiment of the invention provides an ecological water draining system and a control method thereof, and relates to the technical field of hydraulic engineering, wherein first water level data of a reservoir is received, and whether the first water level data is greater than a first preset water level threshold value is judged; if so, starting the vacuum pump, receiving second water level data of the gas-water separator, and judging whether the second water level data is greater than a second preset water level threshold value; if so, stopping the vacuum pump, receiving pressure data of a water pipe in front of the valve, and judging whether the pressure data is greater than a preset pressure threshold value; if yes, the valve and the flow regulating device are opened in sequence. Therefore, whether the next operation can be carried out or not is judged according to the collected data through the water level difference, the valve and the flow regulating device can be opened finally only by judging layer by layer and meeting layer by layer, so that the effect of conveying water to the downstream river by the reservoir is achieved, and the requirement of providing a water source for the downstream river of an early water retaining building without an ecological water drainage facility is met.

Description

Ecological water drainage system and control method thereof
Technical Field
The invention relates to the technical field of hydraulic engineering, in particular to an ecological water drainage system and a control method thereof.
Background
The water retaining structures are various hydraulic structures such as gates, dams, embankments, ponds and the like which are built for intercepting water flow, raising water level and regulating water storage amount or for blocking flood of river water and invasion of seawater. With the enhancement of environmental awareness of people, in order to continuously provide water sources for the downstream of a water retaining building in a arid season, ensure the inhabitation and the multiplication of aquatic organisms such as fish and shrimp in a downstream river channel and maintain the continuous development of a natural ecological chain, ecological water discharging facilities are usually constructed in the construction process of the water retaining building in recent years.
However, for early water-retaining buildings which are older, due to the weak environmental awareness of people at that time, ecological water discharging facilities are not considered to be arranged during the construction of the early water-retaining buildings, so that the reservoir cannot provide water sources for the riverways downstream of the early water-retaining buildings.
Disclosure of Invention
The invention aims to provide an ecological water discharging system and a control method thereof, which can meet the ecological water discharging requirement of an early water stopping building without an ecological water discharging facility and provide a water source for a downstream river channel.
In a first aspect, the present invention provides a method for controlling an ecological water discharge system, where the ecological water discharge system includes a water pipe, a vacuum pump, a gas-water separator, a valve, and a flow regulator, a water inlet end of the water pipe is used to extend into a reservoir, the flow regulator is connected to a water outlet end of the water pipe, the vacuum pump is connected to the water pipe, the gas-water separator is connected to the vacuum pump, the valve is disposed in the water pipe and located between the vacuum pump and the water outlet end, and the method includes the following steps:
receiving first water level data of the reservoir, and judging whether the first water level data is greater than a first preset water level threshold value;
if yes, starting the vacuum pump, receiving second water level data of the gas-water separator, and judging whether the second water level data is larger than a second preset water level threshold value;
if yes, stopping the vacuum pump, receiving pressure data of the water pipe in front of the valve, and judging whether the pressure data is larger than a preset pressure threshold value;
if yes, the valve and the flow regulating device are sequentially opened.
In an alternative embodiment, after the step of activating the flow regulating device, the method further comprises:
receiving opening data of the flow regulating device, and judging whether the opening data exceeds a preset opening range;
if the opening data is smaller than the minimum value of the preset opening range, increasing the opening of the flow regulating device;
and if the opening data is larger than the maximum value of the preset opening range, reducing the opening of the flow regulating device.
In an alternative embodiment, the flow regulating device is a hydro-generator, and the step of turning on the flow regulating device is to turn on the hydro-generator;
after the step of starting the hydraulic generator, receiving guide vane opening data of the hydraulic generator, and judging whether the guide vane opening data exceeds a preset opening range;
if the guide vane opening data is smaller than the minimum value of the preset opening range, increasing the guide vane opening of the hydraulic generator;
and if the guide vane opening data is larger than the maximum value of the preset opening range, reducing the guide vane opening of the hydraulic generator.
In an alternative embodiment, after the step of turning on the hydro-generator, the method further includes:
receiving rotating speed data of a rotating shaft of the hydraulic generator, and judging whether the rotating speed data is greater than a preset rotating speed threshold value;
and if so, reducing the opening degree of the guide vane of the hydraulic generator.
In an alternative embodiment, after the step of turning on the flow regulating device, the method further comprises:
receiving water flow data of the water pipe in front of the valve, and judging whether the water flow data is smaller than a preset water flow threshold value or not;
and if so, increasing the opening degree of the flow regulating device.
In an alternative embodiment, after the step of opening the flow regulating device, the method further includes:
judging whether the first water level data is smaller than a first preset water level threshold value or not;
if yes, closing the flow regulating device.
In a second aspect, the invention provides an ecological water drainage system, which comprises a first detection element, a water pipe, a vacuum pump, a gas-water separator, a second detection element, a third detection element, a valve, a flow regulating device and a controller, wherein the first detection element is connected with the water pipe;
the water pipe is used for being arranged in a water blocking building, a water inlet end and a water outlet end are respectively arranged at two ends of the water pipe, the water inlet end is used for extending into a water reservoir, the water outlet end is lower than the water inlet end and is communicated with the flow regulating device, the valve is arranged on the water pipe and is positioned between the vacuum pump and the water outlet end, the vacuum pump is used for being arranged in the water blocking building and is communicated with the water pipe, the gas-water separator is communicated with the vacuum pump, and the first detection element, the second detection element, the third detection element, the vacuum pump, the valve and the flow regulating device are all electrically connected with the controller;
the first detection element is used for acquiring first water level data of the reservoir and sending the first water level data to the controller;
the controller is used for receiving the first water level data and judging whether the first water level data is larger than a first preset water level threshold value or not, and if so, controlling the vacuum pump to start;
the second detection element is used for acquiring second water level data of the gas-water separator and sending the second water level data to the controller;
the controller is further used for receiving the second water level data, judging whether the second water level data is larger than a second preset water level threshold value or not after the vacuum pump is started, and controlling the vacuum pump to stop if the second water level data is larger than the second preset water level threshold value;
the third detection element is used for acquiring pressure data of the water pipe in front of the valve and sending the pressure data to the controller;
the controller is further used for receiving the pressure data, judging whether the pressure data is larger than a preset pressure threshold value after the vacuum pump stops, and if so, sequentially opening the valve and the flow regulating device.
In an optional embodiment, the ecological water discharge system further comprises:
the fourth detection element is electrically connected with the controller and is used for acquiring the opening data of the flow regulating device and sending the opening data to the controller;
the controller is further used for receiving the opening data, judging whether the opening data exceeds a preset opening range after the flow regulating device is started, controlling the flow regulating device to increase the opening if the opening data is smaller than the minimum value of the preset opening range, and controlling the flow regulating device to decrease the opening if the opening data is larger than the maximum value of the preset opening range.
In an optional embodiment, the controller is further configured to determine whether the first water level data is smaller than the first preset water level threshold after the flow rate adjustment device is turned on, and if so, control the flow rate adjustment device to be turned off.
In an optional embodiment, the ecological water discharge system further comprises:
the sixth detection element is arranged on the water pipe, is positioned on the front side of the valve and is used for acquiring water flow data of the water pipe and sending the water flow data to the controller;
the controller is further used for receiving the water flow data, judging whether the water flow data are smaller than a preset water flow threshold value or not after the flow adjusting device operates, and controlling the opening of the flow adjusting device to increase if the water flow data are smaller than the preset water flow threshold value.
Advantageous effects of the embodiments of the present invention include, for example,
the ecological water discharging system and the control method thereof provided by the embodiment of the invention firstly receive first water level data of the reservoir and judge whether the first water level data is greater than a first preset water level threshold value; if yes, starting the vacuum pump, receiving second water level data of the gas-water separator, and judging whether the second water level data is larger than a second preset water level threshold value; if yes, stopping the vacuum pump, receiving pressure data of the water pipe in front of the valve, and judging whether the pressure data is larger than a preset pressure threshold value; if yes, the valve and the flow regulating device are sequentially opened. Therefore, whether the next operation can be carried out or not is judged according to the collected data through the water level difference, the valve and the flow regulating device can be opened finally only by judging layer by layer and meeting layer by layer, so that the effect of conveying water to the downstream river by the reservoir is achieved, and the requirement of providing a water source for the downstream river of an early water retaining building without an ecological water drainage facility is met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of an ecological drainage system according to an embodiment of the present invention from a first perspective;
FIG. 2 is a schematic view of part A of FIG. 1;
FIG. 3 is a schematic view of an ecological drainage system according to an embodiment of the invention from a second perspective;
FIG. 4 is a schematic view of a vacuum pumping system according to an embodiment of the present invention;
fig. 5 is a flowchart of a control method of an ecological water discharge system according to an embodiment of the present invention.
Icon: 1-water retaining building; 2-a water pipe; 201-water inlet end; 203-water outlet end; 3-vacuum tube; 4-vacuum pump means; 401-check valve; 402-an electric ball valve; 403-vacuum pump; 404-gas-water separator; 405-an overflow tube; 5-an exhaust pipe; 6-maintenance valve; 7-an exhaust valve; 8-a valve; 9-a flow regulating device; 10-speed regulator; 11-an oil inlet pipe; 12-an oil return pipe; 13-tail canal; 14-a first detection element; 15-a second detection element; 16-a sixth detection element; 17-a third detection element; 18-a fifth detection element; 19-fourth detection element.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1 to 3, an embodiment of the present invention provides an ecological water discharge system, which includes a first detection element 14, a water pipe 2, a vacuum pump 403, a gas-water separator 404, a second detection element 15, a third detection element 17, a valve 8, a flow rate adjustment device 9, and a controller.
The water retaining structure 1 is also called a dam, or the like. The water pipe 2 is used in the water retaining structure 1, and may be partially inserted into the water retaining structure 1, for example, so that only a very small amount of local damage may be applied to the water retaining structure 1. Of course, the water blocking structure 1 may not be damaged, and only the water pipe 2 may be hung on the top of the water blocking structure 1. The two ends of the water pipe 2 are respectively provided with a water inlet end 201 and a water outlet end 203, the water inlet end 201 is used for extending into a water reservoir, the water outlet end 203 is lower than the water inlet end 201 and is communicated with the flow regulating device 9, the valve 8 is arranged on the water pipe 2 and is positioned between the vacuum pump 403 and the water outlet end 203, the vacuum pump 403 is arranged on the water retaining building 1 and is communicated with the water pipe 2, the gas-water separator 404 is communicated with the vacuum pump 403, and the first detection element 14, the second detection element 15, the third detection element 17, the vacuum pump 403, the valve 8 and the flow regulating device 9 are all electrically connected with the controller.
The first detection element 14 is used for collecting first water level data of the reservoir and sending the first water level data to the controller. The controller is configured to receive the first water level data, determine whether the first water level data is greater than a first preset water level threshold, and control the vacuum pump 403 to start if the first water level data is greater than the first preset water level threshold.
Specifically, the first detection element 14 is disposed on the front side of the water retaining structure 1, that is, in the reservoir region, and the first detection element 14 may be a liquid level transmitter, a liquid level sensor, or a liquid level meter, as long as it is a detection element capable of acquiring liquid level height data. When the controller judges that the first water level data is smaller than the first preset water level threshold value, the situation that the water storage amount of the reservoir is insufficient at the moment is indicated, and therefore water storage is continued until the water level h of the reservoir0Reach the set lowest water level hminThe controller will control the vacuum pump 403 to start.
It will be appreciated that the operating power of the vacuum pump 403 cannot be infinite, i.e. the vacuum level at which the vacuum pump 403 operates has a maximum limit, and therefore the distance from the top of the vacuum pump 403 to the water surface in the reservoir should be less than the maximum vacuum level at which the vacuum pump 403 operates.
The second detecting element 15 is used for collecting the second water level data of the gas-water separator 404 and sending the second water level data to the controller. The controller is further configured to receive the second water level data, determine whether the second water level data is greater than a second preset water level threshold value after the vacuum pump 403 is started, and control the vacuum pump 403 to stop if the second water level data is greater than the second preset water level threshold value.
Specifically, the function of the second detecting element 15 is substantially the same as that of the first detecting element 14, and is a detecting element for collecting liquid level height data of the liquid, such as a liquid level transmitter, a liquid level sensor or a liquid level meter, etc., the second detecting element 15 is disposed in the air-water separator 404, after the vacuum pump 403 is started, air in the water pipe 2 is gradually pumped away, and along with the operation of the vacuum pump 403, the air in the water pipe 2 is less and less, and water in the water reservoir will gradually enter the water pipe 2 through the water inlet end 201. With the continuous operation of the vacuum pump 403, the vacuum pump 403 will also suck a small amount of water in the water pipe 2, and the water sequentially passes through the vacuum pump 403 and enters the gas-water separator 404, so that the water amount in the gas-water separator 404 will gradually increase, when the controller determines that the second water level data is greater than the second preset water level threshold, it indicates that the water level in the gas-water separator 404 reaches the set height, for example, the water amount is about to fill the gas-water separator 404, at this time, the air content in the water pipe 2 has met the requirement, the water in the reservoir can flow to the water outlet end 203 through the water level difference and the siphon effect, and at this time, the controller controls the vacuum pump 403 to stop operating. Wherein the second preset water level threshold may be a height from the bottom of the inner space of the gas-water separator 404 to a water level between the overflow pipe 405.
It should be noted that, in this embodiment, please refer to fig. 4, the ecological water discharging system further includes a vacuum tube 3, a check valve 401, an electric ball valve 402 and an overflow tube 405, the head end of the vacuum tube 3 is communicated with the middle of the water tube 2, the check valve 401, the electric ball valve 402 and the vacuum pump 403 are sequentially connected in series to the vacuum tube 3, the bottom of the gas-water separator 404 is communicated with the tail end of the vacuum tube 3, the overflow tube 405 is communicated with the top of the gas-water separator 404, thus, the vacuum pump device 4 is constituted by the vacuum tube 3, the check valve 401, the electric ball valve 402, the vacuum pump 403, the gas-water separator 404 and the overflow tube 405, therefore, after the vacuum pump 403 is started, the air and a small amount of water in the water pipe 2 are collected into the gas-water separator 404 through the vacuum pipe 3 sequentially through the check valve 401, the electric ball valve 402 and the vacuum pump 403, the air directly overflows from the overflow pipe 405, and the small amount of water from the water pipe 2 is collected in the gas-water separator 404. Wherein the vacuum pump 403 is specifically disposed at the top of the water retaining building 1, and correspondingly, the check valve 401, the electric ball valve 402, the gas-water separator 404 and the overflow pipe 405 are also disposed at the top of the water retaining building 1.
In this embodiment, please refer to fig. 1 to fig. 3, the ecological water discharging system further includes an exhaust pipe 5 and an exhaust valve 7, the exhaust pipe 5 is connected to the water pipe 2 and located in front of the valve 8; the exhaust valve 7 is arranged on the exhaust pipe 5, the exhaust valve 7 can automatically exhaust when air exists in the exhaust pipe 5, and can be automatically closed due to the water pressure action when water exists in the exhaust pipe 5, so that the exhaust speed can be increased when the vacuum pump 403 runs through the exhaust pipe 5 and the exhaust valve 7, and the water in the water reservoir can be converged in front of the valve 8 more quickly. In addition, the ecological water drainage system further comprises a maintenance valve 6, the maintenance valve 6 is arranged on the exhaust pipe 5 and located in front of the exhaust valve 7, the exhaust valve 7 is opened when the exhaust valve 7 is normal, and the maintenance valve 6 can be closed to maintain the exhaust valve 7 when the exhaust valve 7 breaks down.
The third detecting element 17 is used for collecting pressure data of the water pipe 2 in front of the valve 8 and sending the pressure data to the controller. The controller is further configured to receive the pressure data, determine whether the pressure data is greater than a preset pressure threshold value after the vacuum pump 403 is stopped, and if so, sequentially open the valve 8 and the flow regulating device 9.
Specifically, when the valve 8 is in a closed state, the water flow is prevented from flowing to the flow regulating device 9, so that the flow regulating device 9 can be maintained and checked, and the problem that the flow regulating device 9 breaks down to influence the normal operation of the whole ecological water drainage system is avoided. When the vacuum pump 403 is stopped when the condition is met, the water in the reservoir will flow from the water inlet 201 to the water outlet 203 due to the water level difference and the vacuum siphon effect, so that the water in the water pipe 2 will continuously flow into the front of the valve 8 and be blocked by the valve 8 in the closed state, and thus will flow into the exhaust pipe 5, so that the exhaust valve 7 is closed, and the pressure of the exhaust pipe 5 will be increased. The third detection element 17 is arranged on the exhaust pipe 5, so as to be indirectly arranged on the water pipe 2 in front of the valve 8. The third detecting element 17 may be a pressure transmitter, a pressure sensor, or other detecting elements capable of detecting pressure, so that the pressure data of the exhaust pipe 5, that is, the water pressure in the exhaust pipe 5, acquired by the third detecting element 17 is gradually gathered in front of the valve 8, and thus the pressure data is also larger and larger. When the controller judges that the pressure data of the water pipe 2 in front of the valve 8 is larger than the preset pressure threshold value, the gate and the flow regulating device 9 are sequentially opened at the moment, the water flow in the water pipe 2 enters the flow regulating device 9 through the water outlet end 203 and flows out of the flow regulating device 9, and therefore water in the reservoir continuously provides water for a downstream river channel under the condition of no other interference under the premise of sufficient amount. Of course, in other embodiments, the third detecting element 17 may be directly disposed on the water pipe 2, located in front of the valve 8, and may also collect the water pressure data in front of the valve 8. As water is continuously collected in front of the valve 8, the pressure in the water line 2 in front of the valve 8 will be higher and higher, i.e. the water pressure data will be larger and larger.
In this embodiment, the ecological water discharging system further includes a fourth detecting element 19, and the fourth detecting element 19 is electrically connected to the controller, and is configured to collect opening data of the flow rate adjusting device 9 and send the opening data to the controller. The controller is further configured to receive the opening data, determine whether the opening data exceeds a preset opening range after the flow regulating device 9 is turned on, control the flow regulating device 9 to increase the opening if the opening data is smaller than a minimum value of the preset opening range, and control the flow regulating device 9 to decrease the opening if the opening data is larger than a maximum value of the preset opening range.
Specifically, the fourth detection element 19 is provided in the flow rate adjustment device 9, and may be an opening degree sensor or the like. After the controller starts the flow regulating device 9, if the opening data is judged to be smaller than the minimum value of the preset opening range, the water source of the downstream river is insufficient, and the inhabitation and the reproduction of the aquatic organisms cannot be met, so that the flow regulating device 9 is controlled to increase the opening, the water amount flowing out through the flow regulating device 9 is increased, the water source of the downstream river is supplied, and the inhabitation and the reproduction of the aquatic organisms are met. If the controller judges that the opening data is larger than the maximum value of the preset opening range, the water source of the downstream river is too sufficient, so that the flow regulating device 9 is controlled to reduce the opening, the water quantity flowing out through the flow regulating device 9 is reduced, the water source of the downstream river is sufficient, the water quantity in the reservoir can be saved, and the reservoir stores water so as to provide water source for the downstream river continuously in dry seasons.
In this embodiment, the flow adjusting device 9 is a hydraulic generator, so that when the hydraulic generator is turned on (i.e., the opening of the guide vane of the hydraulic generator is increased from 0), water can flow through the guide vane of the hydraulic generator and flow toward the rotating wheel of the hydraulic generator, so as to drive the rotating shaft of the hydraulic generator to rotate, thereby adjusting the water flow by adjusting the opening of the guide vane of the hydraulic generator, and because the water can push the rotating shaft of the hydraulic generator to rotate when passing through the hydraulic generator, the hydraulic generator generates electric energy, so that the electric energy generated by the hydraulic generator can be used to supplement the consumption of the operation of the vacuum pump 403 and the execution of the program by the controller, so as to save energy; meanwhile, the flow velocity of water flow passing through the rotating shaft of the hydraulic generator is reduced, so that splashing generated after the water flow rushes out of the hydraulic generator is avoided.
Therefore, the fourth detection element 19 is specifically configured to collect guide vane opening data of the hydro-generator and send the guide vane opening data to the controller. The controller is specifically used for receiving the guide vane opening data, judging whether the guide vane opening data exceeds a preset opening range after the hydraulic generator is started, controlling the hydraulic generator to increase the guide vane opening if the guide vane opening data is smaller than the minimum value of the preset opening range, and controlling the hydraulic generator to decrease the guide vane opening if the guide vane opening data is larger than the maximum value of the preset opening range. And if the controller judges that the guide vane opening data is smaller than the minimum value of the preset opening range, the water source of the downstream river is insufficient. If the controller judges that the opening data of the guide vanes is larger than the maximum value of the preset opening range, the downstream water source is too sufficient, meanwhile, the rotating speed of the rotating shaft of the hydraulic generator is too high, the current power of the hydraulic generator already exceeds the rated power of the hydraulic generator, the hydraulic generator already reaches the maximum output, and if the hydraulic generator runs for a long time under the condition that the rated power is exceeded, abnormal heating or even burning can be caused. Therefore, when the controller judges that the opening degree of the guide vane of the hydraulic generator is larger than the maximum value of the preset opening degree range, the controller controls the hydraulic generator to reduce the opening degree of the guide vane, so that the water flow passing through the hydraulic generator is reduced, the rotating speed of the rotating shaft of the hydraulic generator is reduced along with the reduction of the opening degree of the guide vane, and the operating power of the hydraulic generator is reduced to be within the rated power along with the rotating speed of the rotating shaft of the hydraulic generator, so that the hydraulic generator is protected, and the service life of the hydraulic generator is prolonged.
In this embodiment, the controller is further configured to determine whether the first water level data is smaller than a first preset threshold after the flow rate adjustment device 9 is turned on, and if so, control the flow rate adjustment device 9 to be turned off.
Specifically, when the controller determines that the first water level data transmitted from the first detecting element 14 is smaller than a preset first preset threshold, it indicates that the water level of the reservoir has been lowered to h0Therefore, in order to ensure the amount of water stored in the reservoir, the flow rate control device 9 needs to be closed such that the opening degree of the flow rate control device 9 is reduced to 0, and water does not flow out of the flow rate control device 9 any more. Since the flow adjusting device 9 in this embodiment is a hydro-generator, controlling the flow adjusting device 9 to close is controlling the hydro-generator to close, that is, controlling the opening of the guide vane of the hydro-generator to decrease to 0.
In this embodiment, the controller is further configured to control the gate to close after the flow adjusting device 9 is stopped, so as to prevent the flow adjusting device 9 from being damaged due to excessive pressure caused by a high water level of the reservoir, that is, prevent the guide vane of the hydraulic generator from being deformed and damaged due to water pressure.
The ecological water discharging system further comprises a fifth detection element 18, wherein the fifth detection element 18 is electrically connected with the controller and is used for collecting the rotating speed data of the rotating shaft of the hydraulic generator and sending the rotating speed data to the controller. The controller is further used for receiving the rotating speed data, judging whether the rotating speed data are larger than a preset rotating speed threshold value after the hydraulic generator is started, and if yes, controlling the opening degree of the guide vane of the hydraulic generator to be reduced.
Specifically, the fifth detection element 18 is provided to the hydro-generator, and may be a rotational speed sensor. If the controller judges that the rotating speed data is larger than the preset rotating speed threshold value, the rotating speed of the rotating shaft of the hydraulic generator is over high, therefore, in order to prevent the hydraulic generator from being abnormal, the opening degree of the guide vane of the hydraulic generator is controlled to be reduced through the controller, so that the water flow passing through the hydraulic generator is reduced, and the rotating speed of the rotating shaft of the hydraulic generator is reduced. The controller can reduce the opening degree of the guide vane of the hydraulic generator by a part, so that water flow can still flow out of the hydraulic generator; or the opening degree of the guide vane of the hydraulic generator can be directly reduced to 0, so that the hydraulic generator is closed.
In this embodiment, the ecological water discharge system further includes a sixth detection element 16, and the sixth detection element 16 is disposed on the water pipe 2, and is located at the front side of the valve 8, and is configured to collect water flow data of the water pipe 2 and send the water flow data to the controller. The controller is also used for receiving the water flow data, and judging whether the water flow data is smaller than a preset water flow threshold value after the flow adjusting device 9 is started, and if so, controlling the opening of the flow adjusting device 9 to increase.
Specifically, the sixth detecting element 16 may be a flow meter or the like capable of acquiring data on the flow rate of water in the water pipe 2, and the data displayed by the flow meter enables one to clearly know the amount of water flowing out of the flow rate adjusting device 9. When the controller judges that the water flow data transmitted by the sixth detection element 16 is smaller than the preset water flow, the controller controls the guide vane opening of the hydraulic generator to be increased so as to perform feedback correction on the guide vane opening of the hydraulic generator, so that the downstream water quantity meets the requirement.
In this embodiment, the opening degree of the guide vane of the hydro-generator is adjusted by the speed regulator 10, for example, the speed regulator 10 is connected to the hydro-generator through the oil inlet pipe 11 and the oil return pipe 12, and the hydraulic pressure generated when the speed regulator 10 operates drives the guide vane of the hydro-generator to move, so as to change the opening degree of the guide vane of the hydro-generator.
In other embodiments, the flow rate adjusting device 9 may be an opening-adjustable solenoid valve, a gate, or the like, and the controller may adjust the opening of the solenoid valve, the gate, or the like to control the flow rate of water.
In this embodiment, the ecological water discharging system further includes a tailrace 13, and the tailrace 13 is disposed corresponding to the flow adjusting device 9, that is, corresponding to the water outlet of the hydraulic generator, so as to receive the water flowing out from the flow adjusting device 9, so as to prevent the water from directly impacting the riverbed and avoid water and soil loss.
The controller is generally a Central Processing Unit (CPU), and may be configured with a corresponding operating system, a control interface, and the like, and specifically may be a Digital logic control Unit such as a single chip, a DSP (Digital Signal Processing), an ARM (Advanced RISC machine, ARM processor), and the like, which can be used for automation control, and may load a control instruction to a memory at any time for storage and execution, and at the same time, may have a CPU instruction and a data memory, an input/output Unit, a power module, a Digital analog Unit, and the like built in, and may be specifically set according to an actual use situation, which is not limited in this embodiment of the present invention.
The embodiment of the invention also provides a control method of the ecological water discharging system, which can be applied to the ecological water discharging system of the embodiment. It should be noted that the steps illustrated in the flowchart of fig. 5 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 flowchart, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
Fig. 5 is a flowchart of a method for controlling an ecological water discharge system according to an embodiment of the present invention, the method including the following steps:
step S100, receiving first water level data of the reservoir, judging whether the first water level data is larger than a first preset water level threshold value, and if so, turning to step 200.
Specifically, first water level data of the reservoir transmitted from the first detecting element 14 is received. And if the first water level data is smaller than the first preset water level threshold, the water storage capacity of the reservoir at the moment is insufficient. If the first water level data is larger than the first preset water level threshold, the water storage capacity of the reservoir at the moment is enough, and the water can be used for supplying water to a downstream river channel.
Step S200, starting the vacuum pump 403, receiving the second water level data of the gas-water separator 404, determining whether the second water level data is greater than a second preset water level threshold, and if so, going to step S300.
Specifically, when the vacuum pump 403 is started, the vacuum pump 403 is operated to gradually pump air in the water pipe 2, thereby generating vacuum in the water pipe 2 to absorb water in the water reservoir, and as the vacuum pump 403 continues to operate, the air and a small amount of water in the water pipe 2 sequentially pass through the vacuum pump 403 and enter the gas-water separator 404. The second water level data of the gas-water separator 404 transmitted from the second sensing element 15 is received. If the second water level data is greater than the second preset water level threshold, it indicates that the water level in the gas-water separator 404 reaches the set height, for example, the water is about to fill the gas-water separator 404, and at this time, the air content in the water pipe 2 has met the requirement, and the water in the reservoir can flow to the water outlet 203 through the water level drop and the siphon effect.
Step S300, stopping the vacuum pump 403, receiving pressure data of the water pipe 2 in front of the valve 8, judging whether the pressure data is greater than a preset pressure threshold value, and if so, turning to step S400;
specifically, when the vacuum pump 403 is stopped, the water in the reservoir will flow from the inlet 201 to the outlet 203 due to the water level difference and the vacuum siphon effect, so that the water in the water pipe 2 will continuously flow into the front of the valve 8 and be blocked by the valve 8 in the closed state, so that the pressure of the water pipe 2 in front of the valve 8 will be higher and higher. The pressure data received from the third detecting element 17 is also larger and larger, and if the pressure data is larger than the preset pressure threshold, it indicates that the water pressure in the water pipe 2 can make the sufficient water stored in the reservoir continuously provide water for the downstream river channel without other interference.
Step S400, the valve 8 and the flow rate adjusting device 9 are sequentially opened.
The valve 8 and the flow regulating device 9 are opened in sequence, the water in the water pipe 2 can flow to the downstream river channel through the valve 8 and the flow regulating device 9 in sequence because the water quantity and the water pressure are enough, and the water in the reservoir can continuously supply water to the downstream river channel without other conditions.
In this embodiment, after the step of turning on the flow regulator 9, the method further comprises the steps of:
judging whether the first water level data is smaller than a first preset water level threshold value or not;
if so, the flow regulating device 9 is closed.
Specifically, in the process that the reservoir continuously supplies water to the downstream river channel, the water level of the reservoir gradually decreases, so that the received first water level data transmitted from the first detection element 14 gradually decreases with the water level of the reservoir, and in order to ensure that the water amount in the reservoir is sufficient, when the water level of the reservoir gradually decreases to the preset first water level threshold, the reservoir needs to stop supplying water to the downstream river channel, so that the flow regulation device 9 is turned off, that is, the hydro-generator is turned off, so that the opening degree of the flow regulation device 9 is reduced to 0, that is, the opening degree of the hydro-generator is reduced to 0, so that water does not flow out of the flow regulation device 9 any more, that is, water does not flow out of the hydro-generator any more.
In addition, in the present embodiment, in order to prevent the flow rate adjusting device 9 (hydro generator) from being damaged due to the excessive water pressure received by the high water level of the reservoir, after the flow rate adjusting device 9 (hydro generator) is turned off, the method further includes the steps of: the valve 8 is closed.
In this embodiment, after the flow rate adjusting device 9 is turned on, the method further includes the steps of:
receiving the opening data of the flow regulating device 9, and judging whether the opening data exceeds a preset opening range;
if the opening data is smaller than the minimum value of the preset opening range, the opening of the flow regulating device 9 is increased;
if the opening data is larger than the maximum value of the preset opening range, the opening of the flow rate adjusting device 9 is decreased.
Specifically, the opening degree data from the fourth detection element 19 is received. If the opening data is smaller than the minimum value of the preset opening range, the water source of the downstream river is insufficient, and the inhabitation and the reproduction of the aquatic organisms cannot be met, so that the opening of the flow regulating device 9 is increased, the water quantity flowing out through the flow regulating device 9 is increased, the water source of the downstream river is supplied, and the inhabitation and the reproduction of the aquatic organisms are met. If the opening data is judged to be larger than the maximum value of the preset opening range, the water source of the downstream river is too sufficient, so that the opening of the flow regulating device 9 is reduced, the water quantity flowing out through the flow regulating device 9 is reduced, the water source of the downstream river can be sufficient, the water quantity in the reservoir can be saved, and the reservoir can store water so as to provide water source for the downstream river continuously in dry seasons.
In this embodiment, the flow rate adjusting device 9 is a hydro-generator, and thus the step of turning on the flow rate adjusting device 9 is to turn on the hydro-generator;
after the step of starting the hydraulic generator, receiving guide vane opening data of the hydraulic generator, and judging whether the guide vane opening data exceeds a preset opening range;
if the guide vane opening data is smaller than the minimum value of the preset opening range, the guide vane opening of the hydraulic generator is increased;
and if the guide vane opening data is larger than the maximum value of the preset opening range, reducing the guide vane opening of the hydraulic generator.
That is, if the guide vane opening data is smaller than the minimum value of the preset opening range, the guide vane opening of the hydraulic generator is increased, and if the guide vane opening data is larger than the maximum value of the preset opening range, the guide vane opening of the hydraulic generator is decreased. And if the guide vane opening data is judged to be smaller than the minimum value of the preset opening range, the water source of the downstream river is insufficient. If the opening data of the guide vanes is judged to be larger than the maximum value of the preset opening range, it is indicated that the downstream water source is too sufficient, meanwhile, the rotating speed of the rotating shaft of the hydraulic generator is too high, the current power of the hydraulic generator already exceeds the rated power of the hydraulic generator, the hydraulic generator reaches the maximum output, and if the hydraulic generator runs for a long time under the condition of exceeding the rated power, abnormal heating or even burning can be caused. Therefore, when the guide vane opening degree of the hydraulic generator is judged to be larger than the maximum value of the preset opening degree range, the guide vane opening degree of the hydraulic generator is reduced, so that the water flow passing through the hydraulic generator is reduced, the rotating shaft rotating speed of the hydraulic generator is reduced along with the reduction of the guide vane opening degree, the running power of the hydraulic generator is reduced to be within the rated power, the hydraulic generator is protected, and the service life of the hydraulic generator is prolonged.
In this embodiment, after the step of turning on the hydro-generator, the method further includes the steps of:
receiving rotating speed data of a rotating shaft of the hydraulic generator, and judging whether the rotating speed data is greater than a preset rotating speed threshold value;
and if so, reducing the opening of the guide vane of the hydraulic generator.
Specifically, the rotational speed data from the fifth detecting element 18 is received. If the rotating speed data is judged to be larger than the preset rotating speed threshold value, the rotating speed of the rotating shaft of the hydraulic generator is over fast, and therefore, in order to prevent the hydraulic generator from being abnormal, the water flow passing through the rotating shaft of the hydraulic generator is reduced by reducing the opening degree of the guide vanes of the hydraulic generator, and the rotating speed of the rotating shaft of the hydraulic generator is reduced. Only part of the opening degree of the guide vane of the hydraulic generator can be reduced, so that water flow can still flow out of the hydraulic generator; or directly reducing the guide vane opening of the hydraulic generator to 0, so that the hydraulic generator is closed.
In this embodiment, after the step of turning on the hydro-generator, the method further includes the steps of:
receiving water flow data of a water pipe 2 in front of a valve 8, and judging whether the water flow data is smaller than a preset water flow threshold value or not;
if so, the opening degree of the flow rate adjusting device 9 is increased.
Specifically, the water flow rate data from the sixth detection element 16 is received. If the water flow data transmitted by the sixth detection element 16 is judged to be smaller than the preset water flow, the guide vane opening degree of the hydraulic generator is increased, so that the guide vane opening degree of the hydraulic generator is subjected to feedback correction, and the downstream water quantity meets the requirement.
In summary, the ecological water discharging system and the control method thereof provided by the embodiment of the invention receive the first water level data of the reservoir, and judge whether the first water level data is greater than a first preset water level threshold value; if yes, starting the vacuum pump 403, receiving second water level data of the gas-water separator 404, and judging whether the second water level data is greater than a second preset water level threshold value; if yes, stopping the vacuum pump 403, receiving pressure data of the water pipe 2 in front of the valve 8, and judging whether the pressure data is greater than a preset pressure threshold value; if yes, the valve 8 and the flow regulating device 9 are opened in sequence. Therefore, whether the next operation can be carried out or not is judged according to the collected data through the water level difference, the valve 8 and the flow regulating device 9 are opened finally only by judging layer by layer and meeting layer by layer, so that the effect of conveying water to the downstream river by the reservoir is achieved, and the requirement that the water source is continuously provided for the downstream river by the early water retaining building 1 without an ecological water drainage facility is met.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The control method of the ecological water drainage system is characterized in that the ecological water drainage system comprises a water pipe, a vacuum pump, a gas-water separator, a valve and a flow regulating device, wherein a water inlet end of the water pipe is used for extending into a reservoir, the flow regulating device is communicated with a water outlet end of the water pipe, the vacuum pump is communicated with the water pipe, the gas-water separator is communicated with the vacuum pump, the valve is arranged on the water pipe and is positioned between the vacuum pump and the water outlet end, and the method comprises the following steps:
receiving first water level data of the reservoir, and judging whether the first water level data is greater than a first preset water level threshold value;
if yes, starting the vacuum pump, receiving second water level data of the gas-water separator, and judging whether the second water level data is larger than a second preset water level threshold value;
if yes, stopping the vacuum pump, receiving pressure data of the water pipe in front of the valve, and judging whether the pressure data is larger than a preset pressure threshold value;
if yes, the valve and the flow regulating device are sequentially opened.
2. The ecological water discharge system control method according to claim 1, wherein after the step of turning on the flow regulating device, the method further comprises:
receiving opening data of the flow regulating device, and judging whether the opening data exceeds a preset opening range;
if the opening data is smaller than the minimum value of the preset opening range, increasing the opening of the flow regulating device;
and if the opening data is larger than the maximum value of the preset opening range, reducing the opening of the flow regulating device.
3. The ecological water discharge system control method according to claim 2, wherein the flow regulating device is a hydro-generator, and the step of turning on the flow regulating device is turning on the hydro-generator;
after the step of starting the hydraulic generator, receiving guide vane opening data of the hydraulic generator, and judging whether the guide vane opening data exceeds a preset opening range;
if the guide vane opening data is smaller than the minimum value of the preset opening range, increasing the guide vane opening of the hydraulic generator;
and if the guide vane opening data is larger than the maximum value of the preset opening range, reducing the guide vane opening of the hydraulic generator.
4. The ecological water discharge system control method according to claim 3, wherein after the step of turning on the hydro-generator, the method further comprises:
receiving rotating speed data of a rotating shaft of the hydraulic generator, and judging whether the rotating speed data is greater than a preset rotating speed threshold value;
and if so, reducing the opening degree of the guide vane of the hydraulic generator.
5. The ecological water discharge system control method according to claim 1, further comprising, after the step of turning on the flow regulating device:
receiving water flow data of the water pipe in front of the valve, and judging whether the water flow data is smaller than a preset water flow threshold value or not;
and if so, increasing the opening degree of the flow regulating device.
6. The ecological water discharge system control method according to claim 1, further comprising, after the step of turning on the flow regulating device:
judging whether the first water level data is smaller than a first preset water level threshold value or not;
if yes, closing the flow regulating device.
7. An ecological water drainage system is characterized by comprising a first detection element, a water pipe, a vacuum pump, a gas-water separator, a second detection element, a third detection element, a valve, a flow regulating device and a controller;
the water pipe is used for being arranged in a water blocking building, a water inlet end and a water outlet end are respectively arranged at two ends of the water pipe, the water inlet end is used for extending into a water reservoir, the water outlet end is lower than the water inlet end and is communicated with the flow regulating device, the valve is arranged on the water pipe and is positioned between the vacuum pump and the water outlet end, the vacuum pump is used for being arranged in the water blocking building and is communicated with the water pipe, the gas-water separator is communicated with the vacuum pump, and the first detection element, the second detection element, the third detection element, the vacuum pump, the valve and the flow regulating device are all electrically connected with the controller;
the first detection element is used for acquiring first water level data of the reservoir and sending the first water level data to the controller;
the controller is used for receiving the first water level data and judging whether the first water level data is larger than a first preset water level threshold value or not, and if so, controlling the vacuum pump to start;
the second detection element is used for acquiring second water level data of the gas-water separator and sending the second water level data to the controller;
the controller is further used for receiving the second water level data, judging whether the second water level data is larger than a second preset water level threshold value or not after the vacuum pump is started, and controlling the vacuum pump to stop if the second water level data is larger than the second preset water level threshold value;
the third detection element is used for acquiring pressure data of the water pipe in front of the valve and sending the pressure data to the controller;
the controller is further used for receiving the pressure data, judging whether the pressure data is larger than a preset pressure threshold value after the vacuum pump stops, and if so, sequentially opening the valve and the flow regulating device.
8. The ecological water discharge system according to claim 7, further comprising:
the fourth detection element is electrically connected with the controller and is used for acquiring the opening data of the flow regulating device and sending the opening data to the controller;
the controller is further used for receiving the opening data, judging whether the opening data exceeds a preset opening range after the flow regulating device is started, controlling the flow regulating device to increase the opening if the opening data is smaller than the minimum value of the preset opening range, and controlling the flow regulating device to decrease the opening if the opening data is larger than the maximum value of the preset opening range.
9. The ecological water discharge system according to claim 7, wherein the controller is further configured to determine whether the first water level data is less than the first preset water level threshold after the flow rate adjustment device is turned on, and if so, control the flow rate adjustment device to be turned off.
10. The ecological water discharge system according to claim 8, further comprising:
the sixth detection element is arranged on the water pipe, is positioned on the front side of the valve and is used for acquiring water flow data of the water pipe and sending the water flow data to the controller;
the controller is further used for receiving the water flow data, judging whether the water flow data are smaller than a preset water flow threshold value or not after the flow adjusting device operates, and controlling the opening of the flow adjusting device to increase if the water flow data are smaller than the preset water flow threshold value.
CN202111027080.6A 2021-09-02 2021-09-02 Ecological water drainage system and control method thereof Pending CN113585159A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111027080.6A CN113585159A (en) 2021-09-02 2021-09-02 Ecological water drainage system and control method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111027080.6A CN113585159A (en) 2021-09-02 2021-09-02 Ecological water drainage system and control method thereof

Publications (1)

Publication Number Publication Date
CN113585159A true CN113585159A (en) 2021-11-02

Family

ID=78240994

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111027080.6A Pending CN113585159A (en) 2021-09-02 2021-09-02 Ecological water drainage system and control method thereof

Country Status (1)

Country Link
CN (1) CN113585159A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5160216A (en) * 1990-10-03 1992-11-03 Hitachi, Ltd. Drainage distribution amount determining method and drainage system
CN103981832A (en) * 2014-05-27 2014-08-13 重庆大学 Method and system for urban small river ecological water compensation scheduling
CN205242365U (en) * 2015-12-22 2016-05-18 李娟� Sluice automatic control system among hydraulic engineering
CN108589628A (en) * 2018-07-12 2018-09-28 贵州省水利水电勘测设计研究院 A kind of method and device for flood retarding project decentralization ecological water
CN109236670A (en) * 2018-10-29 2019-01-18 唐山钢铁集团有限责任公司 A kind of whirling well sewage lifter
CN208440424U (en) * 2018-06-19 2019-01-29 东莞市达成机械设备制造有限公司 A kind of sewage purifying vehicle
CN113152357A (en) * 2021-05-11 2021-07-23 贵州省水利水电勘测设计研究院有限公司 Reservoir ecological water drainage device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5160216A (en) * 1990-10-03 1992-11-03 Hitachi, Ltd. Drainage distribution amount determining method and drainage system
CN103981832A (en) * 2014-05-27 2014-08-13 重庆大学 Method and system for urban small river ecological water compensation scheduling
CN205242365U (en) * 2015-12-22 2016-05-18 李娟� Sluice automatic control system among hydraulic engineering
CN208440424U (en) * 2018-06-19 2019-01-29 东莞市达成机械设备制造有限公司 A kind of sewage purifying vehicle
CN108589628A (en) * 2018-07-12 2018-09-28 贵州省水利水电勘测设计研究院 A kind of method and device for flood retarding project decentralization ecological water
CN109236670A (en) * 2018-10-29 2019-01-18 唐山钢铁集团有限责任公司 A kind of whirling well sewage lifter
CN113152357A (en) * 2021-05-11 2021-07-23 贵州省水利水电勘测设计研究院有限公司 Reservoir ecological water drainage device

Similar Documents

Publication Publication Date Title
KR101666318B1 (en) Pumpgate system having small hydropower generating
CN207715783U (en) The floating control flow regulating valve of one kind
CN206206294U (en) A kind of the siphon priming device
CN216475468U (en) Cut dirty main pipe and prevent flowing backward reposition of redundant personnel well
CN113585159A (en) Ecological water drainage system and control method thereof
EP1421277B1 (en) Hydroelectric plant
JP2006022611A (en) Pump gate
CN212777886U (en) Water pump assembly and air conditioner
JP4920740B2 (en) Horizontal shaft pump
CN114320861A (en) Drainage scheduling method of mine drainage system
JP2014234665A (en) Subsurface drainage pumping station and operation method of the same
CN110541400B (en) Pump floodgate combined system suitable for irrigation in dry and rainy season
JP4107925B2 (en) Relay pump tank
KR101278534B1 (en) Small water power generation system
JP2020159285A (en) Suction cover, horizontal shaft pump, pump gate and operation method for pump gate
CN210597211U (en) Low-cost water supply and drainage pump station
CN220080255U (en) Rainwater pump station
CN217206711U (en) Automatic water discharging device for top cover of water turbine
CN210919151U (en) Automatic water supply and drainage device
CN216842253U (en) Water turbine pump device
CN211773393U (en) Novel rubber dam water filling and draining system on overflow weir
CN215329762U (en) Novel hydropower station
CN116695651A (en) Fishway structure and application method thereof
US10280893B2 (en) Hydroelectric system and method
JP4050834B2 (en) Foreign substance removal device for undulating flap gate

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20211102

RJ01 Rejection of invention patent application after publication