CN-121995974-A - Floating fishway automatic water filling and draining control method, device, equipment and medium

CN121995974ACN 121995974 ACN121995974 ACN 121995974ACN-121995974-A

Abstract

The invention relates to the technical field of hydraulic engineering and provides a method, a device, equipment and a medium for controlling automatic water filling and draining of a floating fishway, wherein the method is applied to the floating fishway and comprises the steps of adjusting the inlet water depth in an initialization floating section of an adjustable water cabin to be the same as the middle water depth in the floating section; when the inlet water depth and the middle water depth meet preset starting conditions, the adjustable water cabin is controlled to charge and discharge water to the floating section according to the real-time water charging and discharging amount, wherein the real-time water charging and discharging amount is obtained according to the inlet water depth, the middle water depth, the size information of the floating section and the initial water amount in the adjustable water cabin, and the initial water amount is the residual water storage amount in the adjustable water cabin after each time of water charging and discharging is completed. The invention relies on the linkage design of the floating section and the adjustable water cabin, and has strong adaptation capability to the large variable-amplitude water level of the river channel. The real-time regulation and control of the hydraulic conditions of the fishway are realized through the closed loop flow of water depth monitoring, real-time water filling and draining amount calculation and automatic water filling and draining control in the floating section, and the fish passing effect and stability are greatly improved.

Inventors

REN WEI
ZHANG NAICHANG
REN YUXUAN
WANG LIJUN
Wan fan
YIN XING
HE CUILING
YUAN FANG

Assignees

中国电建集团西北勘测设计研究院有限公司

Dates

Publication Date: 20260508
Application Date: 20260408

Claims (10)

1. The automatic water charging and discharging control method for the floating fishway is characterized by being applied to the floating fishway, wherein the floating fishway comprises a fixed section positioned at the upstream of a target, a floating section positioned at the downstream of the target and an adjustable water tank connected with the floating section, the fixed section is communicated with the floating section, when the adjustable water tank performs water charging and discharging operation, the floating section swings along the vertical direction relative to the fixed section, and the automatic water charging and discharging control method comprises the following steps: Adjusting the amount of water in the adjustable water compartment to initialize an inlet water depth in the floating section to be the same as a middle water depth in the floating section; When the inlet water depth and the middle water depth meet preset starting conditions, controlling the adjustable water cabin to be filled and drained according to the real-time water filling and draining amount; The real-time water filling and draining amount is calculated by utilizing moment balance according to the inlet water depth, the middle water depth, the size information of the floating section and the initial water amount in the adjustable water tank, wherein the initial water amount is the residual water storage amount in the adjustable water tank after each water filling and draining is completed.
2. The automatic water filling and draining control method for a floating fishway according to claim 1, wherein, The floating section is characterized in that the middle part and the floating end of the floating section are provided with liquid level meters, the two liquid level meters are respectively used for acquiring a middle water level and an inlet water level, the water quantity in the adjustable water tank is adjusted to initialize the inlet water depth in the floating section to be the same as the middle water depth in the floating section, and the floating section comprises: Obtaining an inlet water depth and a middle water depth according to the inlet water level and the middle water level; Based on the moment balance, obtaining initial adjustment water quantity according to the inlet water depth, the middle water depth, the floating section size information and water tank water storage quantity, wherein the water tank water storage quantity is the water storage quantity in the adjustable water tank before initialization; and adjusting the water quantity of the adjustable water tank according to the initial adjustment water quantity so that the inlet water depth is the same as the middle water depth.
3. The automatic water filling and draining control method for a floating fishway according to claim 2, wherein the number of the adjustable water tanks is a plurality, the adjustable water tanks are in through connection, the floating section comprises a horizontal position section and a slope position section, the horizontal position section is a straight section with the bottom surface parallel to the horizontal plane of the floating section, the slope position section is an inclined section with the bottom surface not parallel to the horizontal plane, which is close to one side of the fixed section, of the floating section, the inclination degree of the bottom surface of the slope position section along the water flow direction is a bottom slope, and the moment balance formula is expressed as: , Wherein f (n, v.) represents the moment balance, ρ represents the water density, G represents the gravitational acceleration, n represents the number of the adjustable water tanks full of water, V 1 represents the total volume of a single adjustable water tank, L represents the length of the floating section, L 1 represents the length of the adjustable water tanks, k 1 represents the water quantity calculation coefficient, the ratio of the water quantity in the adjustable water tanks not full of water to the total capacity of the adjustable water tanks for participating in the water filling and draining adjustment, V 0 /V 1 ,V 0 represents the water quantity stored in the adjustable water tanks not full of water, B represents the internal width of the floating section, H 2it represents the middle water depth, H 1it represents the inlet water depth, G represents the self weight of the floating section, L 0 represents the length of the horizontal position section, B represents the external width of the floating section, i represents the bottom slope, L g represents the self weight of the floating section, Representing the moment generated by said adjustable tanks that n preambles have been filled, Representing the moment generated by all the adjustable tanks not filled with water, Representing the moment generated by the buoyancy of the horizontal segment, Representing the moment created by the buoyancy of the ramp position segment, Representing the moment generated by the water weight in the floating section, and GL g represents the moment generated by the self weight of the floating section; When the moment balance is 0 and water is filled, the initial adjustment water quantity or the water quantity calculation formula of the real-time water filling and draining quantity is expressed as follows: V 2 =（k 1 +k 2 ）V 1 -V 0 , when the moment balance is 0 and drainage is performed, the initial adjustment water quantity or the water quantity calculation formula of the real-time water filling and draining quantity is expressed as follows: V 2 =（k 2 -k 1 ）V 1 +V 0 , Wherein V 2 represents the initial adjustment water amount or the real-time water filling and draining amount, and k 2 represents the number of adjustable water tanks to be adjusted which participate in water filling and draining.
4. A floating fishway automatic water filling and draining control method as claimed in claim 3, further comprising: When the inlet water depth is smaller than the middle water depth, setting the adjustable water tanks which are not full of water as the adjustable water tanks to be adjusted, taking the number of the adjustable water tanks which are full of water as initial adjustment number, correcting the water quantity calculation coefficient by adopting a recursion cyclic trial-and-error addition method based on the moment balance, when the water quantity calculation coefficient is 1, increasing the number of the adjustable water tanks to be adjusted, resetting the water quantity calculation coefficient to be 0, and obtaining the number of the adjustable water tanks which participate in adjustment and the water quantity calculation coefficient which are corresponding to the moment balance of 0; And obtaining the initial adjustment water quantity or the real-time water filling and draining quantity according to the quantity of the adjustable water tanks and the water quantity calculation coefficient which are corresponding to the moment balance type 0 and are involved in adjustment and the water quantity calculation formula when water filling is carried out.
5. A floating fishway automatic water filling and draining control method as claimed in claim 3, further comprising: When the inlet water depth is greater than the middle water depth, setting the adjustable water tanks full of water as the adjustable water tanks to be adjusted, taking the number of the adjustable water tanks full of water as the initial adjustment number, correcting the water quantity calculation coefficient by adopting recursive cyclic trial subtraction based on the moment balance, reducing the number of the adjustable water tanks to be adjusted when the water quantity calculation coefficient is 0, resetting the water quantity calculation coefficient to be 1, and obtaining the number of the adjustable water tanks participating in adjustment and the water quantity calculation coefficient corresponding to the moment balance of 0; And obtaining the initial adjustment water quantity or the real-time water filling and draining quantity according to the quantity of the adjustable water tanks and the water quantity calculation coefficient which are corresponding to the moment balance type 0 and are involved in adjustment and the water quantity calculation formula when water draining is carried out.
6. The automatic water filling and draining control method for a floating fishway according to claim 1, wherein before controlling the adjustable water tank to fill and drain according to the real-time water filling and draining amount when the inlet water depth and the middle water depth satisfy preset starting conditions, further comprising: Judging whether the absolute value of the difference value between the inlet water depth and the middle water depth is smaller than a preset stability threshold value; If yes, determining that the inlet water depth and the middle water depth do not meet the preset starting conditions, and keeping the current state; if not, determining that the inlet water depth and the middle water depth meet the preset starting conditions, and controlling the adjustable water cabin to fill and drain according to the real-time water filling and draining amount.
7. The automatic water filling and draining control method for a floating fishway of claim 6, wherein the controlling the adjustable water tank to fill and drain according to the real-time water filling and draining amount comprises: when the inlet water depth is smaller than the middle water depth, controlling the adjustable water cabin to fill water according to the real-time water filling and draining amount; when the inlet water depth is larger than the middle water depth, the adjustable water cabin is controlled to drain according to the real-time water filling and draining amount.
8. The automatic water filling and draining control device for the floating fishway is characterized by comprising a fixed section positioned at the upstream of a target, a floating section positioned at the downstream of the target and an adjustable water tank connected with the floating section, wherein the fixed section is communicated with the floating section, and when the adjustable water tank performs water filling and draining operations, the floating section swings along the vertical direction relative to the fixed section, and the automatic water filling and draining control device for the floating fishway comprises: An initialization module for adjusting the amount of water in the adjustable water compartment to initialize the same inlet water depth in the floating section as the middle water depth in the floating section; And the adjusting module is used for controlling the adjustable water tank to charge and discharge water according to real-time charge and discharge water when the inlet water depth and the middle water depth meet preset starting conditions, wherein the real-time charge and discharge water is calculated according to the inlet water depth, the middle water depth, the size information of the floating section and initial water quantity in the adjustable water tank by utilizing moment balance, and the initial water quantity is the residual water storage quantity in the adjustable water tank after each charge and discharge of water is completed.
9. An electronic device comprising a memory and a processor; The memory is used for storing a computer program; The processor is configured to implement the floating fishway automatic water filling and draining control method as claimed in any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, wherein a computer program is stored on the storage medium, which when executed by a processor, implements the floating fishway automatic water filling and draining control method as claimed in any one of claims 1 to 7.

Description

Floating fishway automatic water filling and draining control method, device, equipment and medium Technical Field The invention relates to the technical field of hydraulic engineering, in particular to a floating fishway automatic water filling and draining control method, device, equipment and medium. Background In river course hydraulic and hydroelectric engineering construction, the fishway is used as a key supporting facility for guaranteeing fish migration and reproduction, and the fish passing effect is directly related to the integrity of the river basin aquatic ecological system. The core function of the fishway is realized depending on stable hydraulic conditions, and the water filling and draining control is a core link for maintaining the conditions, and by reasonably regulating and controlling the water level, the water depth and the flow velocity in the fishway inlet and the inside, a proper migration channel can be provided for the fish, so that the fish can be ensured to smoothly enter the fishway and the migration can be completed. The fishway facilities of the current mainstream are mostly designed with fixed structures, and the position, the size and the hydraulic parameters of the fishway facilities are difficult to adjust after construction is completed. The corresponding water filling and draining control modes are also preset based on fixed working conditions, or a passive adaptation scheme with multiple fish inlets is adopted. In the actual operation process, the river channel water level often generates large amplitude variation due to seasonal variation, runoff fluctuation and other factors, namely when the water level of the water inlet is greatly reduced, the water depth of the water inlet of the fishway is obviously smaller than that of the water outlet, so that the flow rate of the water inlet is greatly increased, even the water drop phenomenon occurs, the entry of fishes is influenced, and when the water level of the water inlet is excessively increased, the water inlet of the fishway is easily submerged, the flow rate is greatly reduced, and the positions of the inlets are difficult to identify by the fishes. Meanwhile, the water filling and draining system of the fixed fishway lacks dynamic adaptation capability to water level amplitude, and the scheme of multiple fish inlets faces the problems of large arrangement difficulty, high engineering cost, insufficient flexibility of adaptation to different water level amplitude and the like, and is difficult to continuously ensure stable fish passing effect under complex and changeable hydrologic conditions. Disclosure of Invention The invention solves the problem of improving the fish passing effect of the fishway. In order to solve the problems, the invention provides a floating fishway automatic water filling and draining control method, a device, equipment and a medium. The invention provides an automatic water charging and discharging control method for a floating fishway, which is applied to the floating fishway, wherein the floating fishway comprises a fixed section positioned at the upstream of a target, a floating section positioned at the downstream of the target and an adjustable water tank connected with the floating section, the fixed section is communicated with the floating section, and when the adjustable water tank performs water charging and discharging operation, the floating section swings along the vertical direction relative to the fixed section, and the automatic water charging and discharging control method comprises the following steps: Adjusting the amount of water in the adjustable water compartment to initialize an inlet water depth in the floating section to be the same as a middle water depth in the floating section; When the inlet water depth and the middle water depth meet preset starting conditions, controlling the adjustable water cabin to be filled and drained according to the real-time water filling and draining amount; The real-time water filling and draining amount is calculated by utilizing moment balance according to the inlet water depth, the middle water depth, the size information of the floating section and the initial water amount in the adjustable water tank, wherein the initial water amount is the residual water storage amount in the adjustable water tank after each water filling and draining is completed. Optionally, the middle part and the floating end of the floating section are provided with liquid level meters, the two liquid level meters are respectively used for acquiring a middle water level and an inlet water level, the water quantity in the adjustable water tank is adjusted to initialize the inlet water depth in the floating section to be the same as the middle water depth in the floating section, and the method comprises the following steps: Obtaining an inlet water depth and a middle water depth according to the inlet water level and the middle water level; Based on the m