CN209941630U - Pump valve pipeline type fish passing facility - Google Patents

Abstract

The utility model relates to a fish facility is crossed to pump valve pipeline formula, including collection fish storehouse, gate, pressure transition storehouse, cross fish pipeline, water injection pipeline and earial drainage pipeline, collection fish storehouse, pressure transition storehouse size are little, adopt the pipeline to cross the fish, and pipe laying can also be underground on the ground, and occupation of land is few, to topography strong adaptability, hardly receives the topography restriction, easily engineering site selection and arrangement. The long-distance gentle slope channel is not needed, a heavy water gate and opening and closing equipment are not needed, complex structural design and expensive lifting equipment are not needed, and the construction cost is reduced. The water passing section of the pipeline is small, the flow speed is low, and the flow is small; the fish attracting and the fish passing through the dam can be synchronously realized by the combined dispatching of the fish collecting bin and the pressure transition bin; the fish is filtered in the bins and concentrated for the second time, so that the continuous drainage required by continuous fish luring is avoided, and the water consumption is saved. The fish-passing waste water is reused when attracting fish, thereby improving the fish-passing water utilization efficiency and greatly reducing the fish-passing water consumption.

Description

Pump valve pipeline type fish passing facility

Technical Field

The utility model relates to a cross fish facility technical field, especially relate to a pump valve pipeline formula fish facility.

Background

In order to meet the requirements of flood control, power generation, water supply, navigation and the like, people often build water conservancy facilities such as a river dam, a power station and the like in a river. These facilities destroy the connectivity of the original river, cause the fragmentation of the ecological environment of the river, block the migration channel of aquatic animals and plants such as fish in the river, cause the loss or change of habitat, and lead to the reduction and even the extinction of the fish.

Under the large environment that ecological civilization construction is advocated vigorously, fish passing facilities such as fishways, fish gates and fish elevators are not only a hydraulic engineering, but also a compensatory engineering of ecological benefit to the people, and play a vital role in slowing down the separation influence of dams, recovering the original ecological environment of riverways and protecting the variety of river species. Therefore, on the basis of fully knowing and knowing the research and construction development conditions of the fishway, an improvement method and measures are provided, the design level of fish passing facilities is improved, the effective fruit of fish passing is improved, and the method and the device have important significance for protecting river ecology and promoting the sustainable development of water conservancy and hydropower.

At present, the maintenance and protection measures adopted aiming at the adverse effect of the hydro-junction engineering on the fishes generally comprise: building fish passing facilities, developing artificial propagation and releasing, performing reservoir ecological scheduling, building fish protection areas and the like. Among them, it is the most common in China to build fish passing facilities and develop artificial proliferation and release.

In the aspect of building fish passing facilities, the main shapes at home and abroad mainly comprise a nature-imitated bypass fishway, a technical fishway, a fish gate, a fish elevator, a fish collecting and transporting system and the like, but the fish passing facilities have large occupied area, high construction cost or high water consumption.

Disclosure of Invention

In view of the above, it is necessary to provide a pump-valve pipeline type fish passing facility which has a small floor space, a low construction cost, and a low water consumption.

A pump-valve piped fish pass-through installation comprising:

the fish collecting bin is provided with a fish inlet, a first outlet and a first inlet, a fish collecting cavity is formed in the fish collecting bin, and the fish collecting cavity is communicated with the fish inlet, the first outlet and the first inlet;

the gate can be installed between the fish inlet and the fish collecting cavity in an opening and closing manner;

the pressure transition bin is provided with a second inlet, a fish outlet and a water outlet, a transition cavity is formed in the pressure transition bin, the transition cavity is communicated with the second inlet, the fish outlet and the water outlet, the second inlet can be communicated with the first outlet, and a first valve is arranged between the second inlet and the first outlet;

the fish passing pipeline comprises a bottom end and a top end which are oppositely arranged, the bottom end is communicated with the fish outlet, the top end is used for penetrating through the dam and communicating with the reservoir, and a second valve is arranged on the top end;

the fish luring structure comprises a water pump, and the water pump can lure downstream fish into the fish collecting cavity through the fish inlet;

the two ends of the water injection pipeline are communicated with the fish passing pipeline, a third valve is arranged in the water injection pipeline, and the third valve is connected with the second valve in parallel; and

and one end of the drainage pipeline is communicated with the water outlet, the other end of the drainage pipeline is communicated with the first inlet, and a fourth valve is arranged on the drainage pipeline.

In one embodiment, the fish attracting structure further comprises a first pipeline and a second pipeline, the water pump is a bidirectional pump, one end of the first pipeline is used for communicating with the downstream, the other end of the first pipeline is communicated with the pressure transition bin through the water outlet, a fifth valve and a sixth valve are arranged in the first pipeline, the bidirectional pump is located between the fifth valve and the sixth valve, one end of the drainage pipeline is located between the sixth valve and the water outlet and communicated with the first pipeline, the sixth valve is connected in parallel with the fourth valve, one end of the second pipeline is communicated with the first pipeline and located between the bidirectional pump and the sixth valve, the other end of the second pipeline is communicated with the drainage pipeline and located between the first inlet and the fourth valve, and a seventh valve is arranged on the second pipeline.

In one embodiment, the fish attracting structure further comprises a spare bidirectional pump and a spare fifth valve, wherein the spare bidirectional pump is connected with the spare fifth valve in series and then connected with the bidirectional pump and the fifth valve in parallel.

In one embodiment, one end of the first pipeline is provided with a first grating; and/or

Still include the service valve, the service valve set up in on the first pipeline, and be located the fifth valve is kept away from one side of two-way pump.

In one embodiment, a first flow control valve is further disposed on the drainage pipeline, the first flow control valve is used for controlling the flow rate of water in the drainage pipeline and the fish passing pipeline, and the first flow control valve is connected in series with the fourth valve.

In one embodiment, the water injection pipeline is further provided with a vacuum breaker valve, and the vacuum breaker valve is communicated with the fish passing pipeline.

In one embodiment, the top end of the fish passing pipeline comprises a fish passing section, and the fish passing section penetrates through the dam and is communicated with the reservoir; or

The top of crossing the fish pipeline includes two at least fish sections of crossing that connect in parallel each other, it runs through the dam and is linked together with the reservoir to cross the fish section, the second valve set up in cross on the fish section, each cross the fish section correspond have with the parallelly connected water injection pipeline of second valve, be equipped with the third valve on the water injection pipeline.

In one embodiment, further comprising a second grill disposed at the first inlet; and/or

Still include the third grid, the third grid set up in the bottom of pressure transition storehouse, and correspond the outlet.

In one embodiment, the fish-passing device further comprises a buttress for supporting or fixing the fish-passing pipeline; and/or

The telescopic joint is used for supporting the fish passing pipeline; and/or

The first access door is positioned between the fish inlet and the gate; and/or

Still include the second access door, the second access door is located the port department of the top of crossing the fish pipeline.

In one embodiment, the device further comprises a gate hoist, wherein the gate hoist is used for opening or closing the gate; and/or

The bottom of the fish collecting bin is provided with a flow guiding slope, and the flow guiding slope is arranged downwards relative to the horizontal plane.

The pump valve pipeline type fish passing facility at least has the following advantages:

in the initial state, the gate is closed, and the first valve, the second valve, the third valve and the fourth valve are closed. When luring fish, the gate is opened, and the water pump is opened and is lured the fish of low reaches to the fish collection intracavity through the fish mouth. After finishing fish luring, the water pump is closed, the gate is closed, and the fish in the fish collecting cavity is prevented from escaping. And opening the first valve and the water pump to collect the fish in the fish collecting cavity into the transition cavity of the pressure transition bin. And after the fish collection is finished, closing the first valve and the water pump. Opening a third valve, so that water in the upstream reservoir flows to the fish passing pipeline from the water injection pipeline and is injected into the transition cavity and the fish passing pipeline from the top end of the fish passing pipeline, and the pressure in the transition cavity and the fish passing pipeline is increased; and water is filled into the fish collecting cavity through a water pump. Leading the fish into a fish passing pipeline and rising until the water head of the water in the fish passing pipeline is level or almost level with the water level of the reservoir, and opening a second valve to prepare for passing the fish; and simultaneously opening the gate to be ready for attracting the fish again. And opening the fourth valve to form a fish passing flow speed in the fish passing pipeline, so that hydraulic fish passing is realized, and meanwhile, the water flow flowing into the fish collecting cavity from the drainage pipeline forms a fish luring flow speed to lure the fish again. When the downstream water depth is large and the water flow flowing out of the drainage pipeline can not provide enough fish luring flow velocity for fish luring, the water pump is started for supplying.

The fish collecting bin and the pressure transition bin of the pump-valve pipeline type fish passing facility are small in size, fish can pass through the pipeline, and the pipeline can be laid underground or on the ground, so that the occupied area is very small, the adaptability to the terrain is very strong, the restriction of the terrain condition is almost avoided, and the site selection and the arrangement of the project are easy. And long-distance gentle slope channels, heavy water gates and opening and closing equipment are not needed, complex structural design and expensive lifting equipment are not needed, and the construction cost is reduced. The fish is passed through the pipeline, the water passing section of the pipeline is small, and the flow rate is low, so that the flow is small; fish attraction and fish dam crossing can be synchronously realized through the combined dispatching of the fish collecting bin and the pressure transition bin; fish are filtered in different bins and concentrated for the second time, so that continuous drainage required by continuous fish luring is avoided, and water consumption is saved; the distance from the river to the fish collecting bin is short, and the fish can be attracted to the fish collecting bin and then concentrated to the pressure transition bin only by a small amount of water; the distance from the pressure transition bin to the top end of the fish passing pipeline is longer, the distance from the pressure transition bin to the top end of the fish passing pipeline is not induced by water power, water injection and pressure boosting are adopted, and the fish is guided to move towards the upper part of the pipeline through the adaptation of the fish to the water pressure, so that only water with the volume of the pipeline is needed, and the water consumption is greatly saved; when the top end of the fish passing pipeline is close to the reservoir area, the fish can be guided to enter the reservoir area only by short-time small flow, and the fish passing abandoned water is reused when attracting the fish, so that the fish passing water utilization efficiency is improved, and the fish passing water consumption is greatly reduced.

Drawings

FIG. 1 is a top view of one embodiment of a pump-valve pipeline fish pass facility;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 shows the piping type fish-passing facility of the pump valve shown in FIG. 2 in a fish attracting state;

FIG. 4 shows the pump-valve pipeline fish-passing facility of FIG. 2 in a fish-gathering state;

FIG. 5 shows the pump valve pipeline type fish passing facility shown in FIG. 2 in a state of pressure rise in the pressure transition bin and water filling into the fish collecting bin;

FIG. 6 shows the pump valve pipeline type fish passing facility shown in FIG. 2 in a state that the pressure of the pressure transition bin is increased and the water in the fish collecting bin is filled;

fig. 7 shows the pump-valve pipeline type fish passing facility in fig. 2 in a hydraulic fish passing and re-luring state.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Referring to fig. 1 and 2, in one embodiment, a pump-valve pipeline type fish-passing facility 10 is used for fish to travel through a dam, and is of great significance for protecting river ecology and promoting sustainable development of water conservancy and hydropower. Specifically, the pump-valve pipeline type fish passing facility 10 comprises a fish collecting bin 100, a gate 200, a pressure transition bin 300, a fish passing pipeline 400, a fish luring structure 500, a water injection pipeline 600 and a drainage pipeline 700.

The fish collecting bin 100 is provided with a fish inlet 110, a first outlet 120 and a first inlet 130, a fish collecting cavity 140 is formed in the fish collecting bin 100, and the fish collecting cavity 140 is communicated with the fish inlet 110, the first outlet 120 and the first inlet 130. Fish downstream 20 may enter fish collection chamber 140 through fish inlet 110. The height of the fish collecting chamber 100 is higher than that of the pressure transition chamber 300, so that the bottom of the fish collecting chamber 100 is provided with the guide slope 150, the guide slope 150 is inclined downwards relative to the horizontal plane, and water and fish in the fish collecting chamber 140 can freely flow out through the first outlet 120 and enter the pressure transition chamber 300. The second grating 160 is disposed at the first inlet 130, and the second grating 160 can effectively prevent the fish in the fish-collecting chamber 140 from escaping from the first inlet 130.

In the embodiment, the fish collecting bin 100 can be formed by pouring concrete, so that the process is simple and the cost is low. The fish collecting chamber 100 functions mainly to collect fish, and when the number of fish in the fish collecting chamber 140 reaches a certain number, the gate 200 is closed. For example, the fish collecting amount can be calculated by a counter to be about 200, and the gate 200 is closed to complete the fish collecting operation.

The gate 200 is openably and closably installed between the fish inlet 110 and the fish collecting chamber 140. A first access door 201 is arranged between the gate 200 and the fish inlet 110. When the fish gathering bin needs to be overhauled, the first access door 201 is opened, and the fish gathering bin 100 is overhauled after water is drained by the aid of the movable pump. When attracting fish, the gate 200 is opened and the fish enters the fish collecting chamber 140 from the fish inlet 110. Specifically, the pump-valve pipeline fish-passing facility 10 further includes a gate hoist 210, and the gate hoist 210 is used to open or close the gate 200.

The pressure transition bin 300 has a second inlet 310, a fish outlet 320 and a water outlet 330, a transition chamber 340 is formed in the pressure transition bin 300, and the transition chamber 340 is communicated with the second inlet 310, the fish outlet 320 and the water outlet 330. The second inlet 310 can be in communication with the first outlet 120, with a first valve 301 disposed between the second inlet 310 and the first outlet 120. When the first valve 301 is opened, the second inlet 310 is communicated with the first outlet 120, water and fish in the fish collecting cavity 140 freely flow into the transition cavity 340, and meanwhile, the transition cavity 340 discharges water outside through the water discharge port 330, so that the concentration ratio of the fish is improved, and the pressure transition bin 300 is smaller in volume and occupied area. When the first valve 301 is closed, the second inlet 310 is not in communication with the first outlet 120.

In this embodiment, the second inlet 310 is not higher than the first outlet 120, so that it is effectively ensured that water and fish in the fish collecting chamber 140 can freely flow into the transition chamber 340 when the first valve 301 is opened. The top of the pressure transition chamber 300 is tapered, e.g., tapered, to a size that is closer to the bottom inlet of the fish conduit 400, so as to facilitate the fish in the transition chamber 340 to smoothly find the bottom inlet of the fish conduit 400. The bottom of pressure transition bin 300 is positioned below the bottom of fish collection bin 100 to ensure that fish and water flowing into transition chamber 340 cannot flow from second inlet 310 into fish collection chamber 140. The bottom of the pressure transition bin 300 is further provided with a third grating 350, and the third grating 350 is arranged corresponding to the water outlet 330, so that the third grating 350 can effectively prevent the fish in the transition chamber 340 from escaping from the water outlet 330.

In the embodiment, the fish collecting bin 100 and the pressure transition bin 300 can be integrally formed, and both are formed by pouring concrete, so that the process is simple, and the cost is reduced. The fish collecting bin 100 and the pressure transition bin 300 in the embodiment have small volumes and small occupied areas.

The fish passing pipeline 400 comprises a bottom end and a top end which are oppositely arranged, the bottom end is communicated with the fish outlet 320, the top end is used for penetrating through the dam 30 and is communicated with the reservoir 40, a second valve 401 is arranged on the top end, and the second valve 401 is used for controlling the opening and closing of the top end of the fish passing pipeline 400. The fish passing pipeline 400 is used for passing fish, so that the fish can smoothly move during pressure boosting, and therefore the fish needs to monotonically rise from bottom to top and meet the size requirement of the fish.

In this embodiment, the pump-valve pipeline type fish passing facility 10 further includes a buttress for supporting or fixing the fish passing pipeline 400 and/or an expansion joint for supporting the fish passing pipeline 400. For example, in the embodiment shown in FIG. 2, the pump-valve-in-line fish filer facility 10 includes 4 piers 430 spaced apart.

The fish attracting structure 500 includes a water pump capable of attracting fish of the downstream 20 rivers into the fish collecting chamber 140 through the fish inlet 110. Specifically, the water pump is a bi-directional pump 510. The fish luring structure 500 further comprises a first pipeline 520 and a second pipeline 530, wherein one end of the first pipeline 520 is used for communicating with the downstream 20 river, and the other end of the first pipeline is communicated with the pressure transition bin 300 through the water outlet 330. Specifically, the bidirectional pump 510 introduces water from the downstream river into the fish collecting chamber 140 through the first pipe 520, the second pipe 530 and the first inlet 130, and forms a fish attracting water flow in the fish collecting chamber 140 and the fish inlet 110, so as to attract the fish into the fish collecting chamber 140 through the fish inlet 110.

For example, one end of the first pipe 520 is further provided with a first grill 521, and the first grill 521 is used to prevent fish from entering the first pipe 520 to block the first pipe 520. Specifically, a first grid 521 is provided at the intersection of the first conduit 520 and the downstream river.

Both ends of the water injection pipeline 600 are communicated with the fish passing pipeline 400, a third valve 601 is arranged in the water injection pipeline 600, and the third valve 601 is connected with the second valve 401 in parallel. The diameter of the water injection pipe 600 is smaller than that of the fish passing pipe 400. Further, the water injection pipeline 600 is further provided with a vacuum breaker valve 602, and the vacuum breaker valve 602 is communicated with the fish passing pipeline 400, and is mainly used for being automatically opened when the fish passing pipeline 400 generates negative pressure or vacuum gradually rises to break a vacuum effect, so that the fish passing pipeline 400 and other equipment cannot generate concave cracks and the like, and the safety of the fish passing pipeline 400 is protected.

One end of the drainage pipe 700 is connected to the drainage outlet 330, and the other end is connected to the first inlet 130, and the drainage pipe 700 is provided with a fourth valve 701. Further, the first flow control valve 702 is further arranged on the drainage pipeline 700, the first flow control valve 702 is used for controlling the flow rate in the drainage pipeline 700 and the fish passing pipeline 400, and the first flow control valve 702 is connected in series with the fourth valve 701, so that the favorite flow rate of the fish generated in the fish passing pipeline 400 during fish passing is ensured, and the purposes of attracting and passing the fish are achieved.

The other end of the first conduit 520 is in communication with the pressure surge bin 300 via the drain 330. The other end of the first conduit 520 is below the downstream 20 river, the bottom of the fish collection bin 100 and the bottom design of the pressure transition bin 300. A fifth valve 501 and a sixth valve 502 are disposed in the first pipe 520, and the bidirectional pump 510 is disposed between the fifth valve 501 and the sixth valve 502. One end of the drain conduit 700 is located between the sixth valve 502 and the drain port 330 and is in communication with the first conduit 520, and the other end is in communication with the first inlet 130. As shown in fig. 2, the bi-directional pump 510 can pump water to the left or to the right (it should be noted that the left and right are only illustrated by way of example and are not intended to limit the scope of the present solution).

The pump-valve pipeline type fish passing facility 10 further comprises a service valve 503, wherein the service valve 503 is arranged on the first pipeline 520 and is positioned on one side of the fifth valve 501 far away from the bidirectional pump 510. When the fifth valve 501 or the bi-directional pump 510 needs to be serviced, the service valve 503 may be closed.

One end of the second pipe 530 can communicate with the first pipe 520 and is located between the bidirectional pump 510 and the sixth valve 502, the other end of the second pipe 530 can communicate with the drain pipe 700 and is located between the first inlet 130 and the fourth valve 701, and the second pipe 530 is provided with the seventh valve 504. One end of the second pipe 530 is lower than the downstream 20 river channel, the bottom of the fish gathering bin 100 and the bottom design of the pressure transition bin 300, and the other end of the second pipe 530 is lower than the bottom design of the fish gathering bin 100.

Further, the fish attracting structure 500 further includes a spare bidirectional pump 510 'and a spare fifth valve 501', and the spare bidirectional pump 510 'is connected in series with the spare fifth valve 501' and then is arranged in parallel with the bidirectional pump 510 and the fifth valve 501. When the bidirectional pump 510 and the fifth valve 501 fail, the standby bidirectional pump 510 'and the standby fifth valve 501' can be started to ensure that fish passing can be smoothly carried out.

The pump-valve ducted fish installation 10 further comprises a second access door 410, the second access door 410 being located at a port at the top end of the fish duct 400. The second access door 410 may be closed when access to the second valve 401 or the third valve 601 or the water injection line 600 is required.

Further, the top end of the fish passing pipeline 400 comprises at least two fish passing sections 420 connected in parallel, the fish passing sections 420 are communicated with the reservoir 40 through the dam 30, and the second valve 401 is arranged on the fish passing sections 420. Correspondingly, each fish passing section 420 is correspondingly provided with a water injection pipeline 600 connected with the second valve 401 in parallel, two ends of the water injection pipeline 600 are communicated with the fish passing pipeline 400, a third valve 601 is arranged in the water injection pipeline 600, and the third valve 601 is connected with the second valve 401 in parallel.

For example, in the embodiment shown in fig. 2, the number of fish passing sections 420 is two, and the two fish passing sections 420 are located at different heights of the dam 30, so that the fish passing sections 420 close to the water surface of the reservoir 40 can be preferentially used corresponding to different water depths, thereby improving applicability. Of course, in other embodiments, the number of fish passage sections 420 may be one, three, four, etc.

The concrete working principle of the pump valve pipeline type fish passing facility 10 is as follows:

in the initial state, the gate 200 is closed, the first flow rate control valve 702 is opened, and the first valve 301, the second valve 401, the third valve 601, the fourth valve 701, the fifth valve 501, the sixth valve 502, and the seventh valve 504 are closed.

Referring to fig. 3, during fish luring, the gate 200 is opened, the fifth valve 501 is opened, the seventh valve 504 is opened, and the bidirectional pump 510 is opened to pump water to the right. The water in the downstream 20 flows to the fish collecting cavity 140 through the first pipeline 520, the second pipeline 530 and the first inlet 130 in sequence, the favorite flow velocity of the fish is formed in the fish collecting cavity 140 and the fish inlet 110, and the fish is attracted to the fish collecting cavity 140 from the river 20 in the downstream.

When luring fish, the water level of the fish inlet 110 is constantly changed, so the water pump is suitable to be matched with a variable frequency motor. Through the regulation of inverter motor power to realize under the different water level circumstances, fish collection chamber 140 and advance fish mouth 110 homoenergetic and obtain the favorite velocity of flow of fish. After finishing fish luring, the gate 200 is closed, the bidirectional pump 510 and the fifth valve 501 are closed, and the fish in the fish collecting cavity 140 is prevented from escaping.

Referring to fig. 4, the first valve 301, the sixth valve 502, the bidirectional pump 510 and the fifth valve 501 are opened, the bidirectional pump 510 pumps water to the left, the fish and water in the fish collecting cavity 140 flow from the first outlet 120 to the second inlet 310 and enter the transition cavity 340, the water level of the pressure transition bin 300 is kept not higher than the bottom level of the first inlet 310, and fish collecting in the transition bin is performed. The pressure transition bin 300 can be drained outwards by the bidirectional pump 510 and drained down to the downstream 20 rivers via one end of the first pipe 520, so the pressure transition bin 300 does not have to be larger than the volume of the fish collection bin 100. In other embodiments, the volume of the pressure transition bin 300 may also be equal to or greater than the volume of the fish collection bin 100, in which case it may not be necessary to drain water out through the bi-directional pump 510.

After the fish is harvested, the sixth valve 502 and the bi-directional pump 510 are closed. Specifically, after the fish is collected in the transition bin, the sixth valve 502 is preferably closed again 3 to 5 minutes after the bidirectional pump 510 is turned off, so that the water flow of the downstream 20 rivers flows freely to and fills the pressure transition bin 300 through the first pipeline 520 under the action of the dead weight, thereby reducing the impact influence of the water flow falling from the fish passing pipeline 400 on the fish in the pressure transition bin 300.

Referring to fig. 5, the pressure in the pressure transition chamber 300 is increased, and the fish in the transition chamber 340 is guided into the fish passing pipe 400 and is raised, so as to pass the fish under pressure. Specifically, by opening the third valve 601, water from the reservoir 40 is injected through the fish conduit 400 via the water injection conduit 600 and gradually fills the transition chamber 340 and the fish conduit 400, and the fish population adapts to the upward movement of water pressure as the water level rises. Because the diameter of the water injection pipeline 600 is small, the filling process that the water injection pipeline 600 flows to the fish passing pipeline 400 is slow, so that the damage to the fish school in the transition cavity 340 can be effectively prevented, and the upstream of the inlet of the fish passing pipeline 400 can be found in sufficient time for the fish school.

And the fish collecting chamber 140 is filled with water. Specifically, when the seventh valve 504 is opened, and the fifth valve 501 is also opened, the water in the downstream 20 rivers can freely flow from one end of the first pipe 520 to the second pipe 530, and flows into the fish collecting cavity 140 from the first inlet 130, so that the fish collecting cavity 140 is gradually filled, and the pressure difference of the gate 200 is gradually reduced. The bi-directional pump 510 may also be activated to pump water to the right, speeding up the filling process.

Referring to fig. 6, when the pressure in the transition chamber 340 is increased, i.e. the pressure head is level with the water level in the reservoir 40, the third valve 601 is closed. At this time, the water level in the fish passage 400 reaches the top end of the fish passage 400, i.e., the pressure head in the fish passage 400 rises to the water level of the reservoir 40. The second valve 401 is opened and the fish is ready. Simultaneously, the gate 200 is opened and the bidirectional pump 510 is opened to prepare for re-attracting fish.

Referring to fig. 7, water is passed through the fish while attracting the fish. The fourth valve 701 is opened, and the hydraulic flow rate in the fish passing pipeline 400 is controlled through the first flow control valve 702, so that hydraulic fish passing is realized. At the same time, the water flowing into the fish collecting chamber 140 from the drainage pipe 700 also forms a fish luring flow velocity, and lures the fish again. When the water depth of the downstream 20 is larger and the water flow flowing out of the drainage pipeline 700 can not provide enough fish luring flow rate for the fish luring, the bidirectional pump 510 and the fifth valve 501 are opened, the bidirectional pump pumps water to the right, and the fish luring flow rate is complemented to achieve the purpose of fish luring. When the fish passing pipe 400 passes fish by water power, the flow rate in the fish passing pipe 400 is controlled by the first flow control valve 702, so the flow capacity of the first flow control valve 702 should meet the requirement of the designed flow rate (i.e. the favorite flow rate of fish) of the fish passing pipe 400, so as to meet the effect of passing fish by water power. After the fish luring is finished, the steps are sequentially repeated, and the processes of fish luring, fish gathering and fish passing are circularly performed for many times.

The fish collecting bin 100 and the pressure transition bin 300 of the pump-valve pipeline type fish passing facility 10 are small in size, and the fish is passed through the pipeline, and the pipeline can be laid underground or on the ground, so that the occupied area is very small, the adaptability to the terrain is very strong, the restriction of the terrain condition is almost avoided, and the site selection and the arrangement of the project are easy. And long-distance gentle slope channels, heavy water gates and opening and closing equipment are not needed, complex structural design and expensive lifting equipment are not needed, and the construction cost is reduced. The fish is passed through the pipeline, the water passing section of the pipeline is small, and the flow rate is low, so that the flow is small; fish attraction and fish dam crossing can be synchronously realized through the combined dispatching of the fish collecting bin and the pressure transition bin; fish are filtered in different bins and concentrated for the second time, so that continuous drainage required by continuous fish luring is avoided, and water consumption is saved; the distance from the river to the fish collecting bin 100 is short, and only a small amount of water is needed to attract the fish to the fish collecting bin 100 and then to be concentrated to the pressure transition bin 300; the distance from the pressure transition bin 300 to the top end of the fish passing pipeline 400 is long, the distance from the fish to the top end is not induced by water power, water injection and pressure boosting are adopted, and the fish is guided to move to the upper part of the pipeline through adaptation of the fish to water pressure, so that only water in one pipeline volume is needed, and the water consumption is greatly saved; when the top end of the fish passing pipeline 400 is reached and is close to the reservoir area, the fish can be guided to enter the reservoir area only by short-time small flow, and the fish passing abandoned water is reused when attracting the fish, so that the fish passing water utilization efficiency is improved, and the fish passing water consumption is greatly reduced.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A pump valve pipeline formula fish passing facility characterized by that includes:

the fish collecting bin is provided with a fish inlet, a first outlet and a first inlet, a fish collecting cavity is formed in the fish collecting bin, and the fish collecting cavity is communicated with the fish inlet, the first outlet and the first inlet;

the gate can be installed between the fish inlet and the fish collecting cavity in an opening and closing manner;

the pressure transition bin is provided with a second inlet, a fish outlet and a water outlet, a transition cavity is formed in the pressure transition bin, the transition cavity is communicated with the second inlet, the fish outlet and the water outlet, the second inlet can be communicated with the first outlet, and a first valve is arranged between the second inlet and the first outlet;

the fish passing pipeline comprises a bottom end and a top end which are oppositely arranged, the bottom end is communicated with the fish outlet, the top end is used for penetrating through the dam and communicating with the reservoir, and a second valve is arranged on the top end;

the fish luring structure comprises a water pump, and the water pump can lure downstream fish into the fish collecting cavity through the fish inlet;

the two ends of the water injection pipeline are communicated with the fish passing pipeline, a third valve is arranged in the water injection pipeline, and the third valve is connected with the second valve in parallel; and

and one end of the drainage pipeline is communicated with the water outlet, the other end of the drainage pipeline is communicated with the first inlet, and a fourth valve is arranged on the drainage pipeline.

2. The fish-passing facility with pump valve and pipeline according to claim 1, wherein the fish-luring structure further comprises a first pipeline and a second pipeline, the water pump is a bidirectional pump, one end of the first pipeline is used for communicating with downstream, the other end of the first pipeline is communicated with the pressure transition bin through the water outlet, a fifth valve and a sixth valve are arranged in the first pipeline, the bidirectional pump is located between the fifth valve and the sixth valve, one end of the drainage pipeline is located between the sixth valve and the water outlet and is communicated with the first pipeline, the sixth valve is connected with the fourth valve in parallel, one end of the second pipeline is communicated with the first pipeline and is located between the bidirectional pump and the sixth valve, and the other end of the second pipeline is communicated with the drainage pipeline, And is located between the first inlet and the fourth valve, and a seventh valve is arranged on the second pipeline.

3. The fish piping installation of claim 2, wherein the fish attracting structure further comprises a spare bidirectional pump and a spare fifth valve, the spare bidirectional pump is connected in series with the spare fifth valve and then connected in parallel with the bidirectional pump and the fifth valve.

4. The pump-valve pipeline fish-passing facility according to claim 2, wherein one end of the first pipeline is provided with a first grating; and/or

Still include the service valve, the service valve set up in on the first pipeline, and be located the fifth valve is kept away from one side of two-way pump.

5. The pump-valve pipeline type fish passing facility according to claim 2, wherein a first flow control valve is further arranged on the drainage pipeline and used for controlling the flow rate of water in the drainage pipeline and the fish passing pipeline, and the first flow control valve is connected with the fourth valve in series.

6. The pump-valve pipeline fish passing facility according to claim 1, wherein a vacuum breaker valve is further arranged on the water injection pipeline, and the vacuum breaker valve is communicated with the fish passing pipeline.

7. The pump-valve pipeline fish passing facility according to claim 1, wherein the top end of the fish passing pipeline comprises a fish passing section, and the fish passing section is communicated with the reservoir through the dam; or

The top of crossing the fish pipeline includes two at least fish sections of crossing that connect in parallel each other, it runs through the dam and is linked together with the reservoir to cross the fish section, the second valve set up in cross on the fish section, each cross the fish section correspond have with the parallelly connected water injection pipeline of second valve, be equipped with the third valve on the water injection pipeline.

8. The pump-valve ducted fish passing installation according to any one of claims 1 to 7, further comprising a second grill provided at the first inlet; and/or

Still include the third grid, the third grid set up in the bottom of pressure transition storehouse, and correspond the outlet.

9. The pump-valve pipeline fish passage facility of any one of claims 1 to 7, further comprising a buttress for supporting or securing the fish passage pipeline; and/or

The telescopic joint is used for supporting the fish passing pipeline; and/or

The first access door is positioned between the fish inlet and the gate; and/or

Still include the second access door, the second access door is located the port department of the top of crossing the fish pipeline.

10. The pump-valve pipeline fish-passing facility according to any one of claims 1 to 7, further comprising a gate hoist for opening or closing the gate; and/or

The bottom of the fish collecting bin is provided with a flow guiding slope, and the flow guiding slope is arranged downwards relative to the horizontal plane.

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