CN107156004B - Fish egg motion test water tank system - Google Patents
Fish egg motion test water tank system Download PDFInfo
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- CN107156004B CN107156004B CN201710405930.9A CN201710405930A CN107156004B CN 107156004 B CN107156004 B CN 107156004B CN 201710405930 A CN201710405930 A CN 201710405930A CN 107156004 B CN107156004 B CN 107156004B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 253
- 238000012360 testing method Methods 0.000 title claims abstract description 64
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- 241000251468 Actinopterygii Species 0.000 claims abstract description 116
- 235000013601 eggs Nutrition 0.000 claims abstract description 112
- 238000011084 recovery Methods 0.000 claims abstract description 24
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- 241000883303 Acipenser sinensis Species 0.000 description 2
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- 239000013505 freshwater Substances 0.000 description 2
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- 230000017448 oviposition Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
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- 241000881711 Acipenser sturio Species 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
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Abstract
The invention discloses a fish egg movement test water tank system which comprises a water storage tank, a rectangular water tank body, a rotary vane type tail door, an upstream water stop gate, a downstream water stop gate, a fish egg putting slide rail vehicle, a fish egg putting lifting rod, an L type fish egg putting funnel, a L type fish egg recovery funnel and a fish egg conveying device, wherein the fish egg conveying device can convey fish eggs recovered by the L type fish egg recovery funnel into the L type fish egg putting funnel, and water recovered by the L type fish egg recovery funnel directly falls into the water storage tank.
Description
Technical Field
The invention relates to a water tank system, in particular to a fish egg movement test water tank system suitable for fish egg movement hydraulics characteristic research, reservoir dispatching fish influence research, fish early resource estimation research and the like, and belongs to the technical field of ecological hydraulics tests.
Background
Roe drifting movement is an important stage of early development of fishes and is related to successful hatching and resource supplement of roe fries of the fishes. In a natural river, how the roes move, how the roe density is distributed, how the roe movement is affected by the river terrain and hydrodynamic conditions, and the transportation and final destination of the roes are affected. Therefore, understanding and understanding the hydrodynamic characteristics and the motion rules of fish eggs in a natural river channel is of great importance to the work of fish resource protection, spawning site restoration, ecological scheduling effect evaluation and the like, and meanwhile, theoretical basis is provided for accurate guess of fish spawning site positions and scientific estimation of early resource amount.
At present, the conventional hydraulics test water tanks (Tangming, Huangdelin, Huang Li Chao, etc. the hydraulics characteristic tests of grass, green, silver carp and bighead carp eggs and the preliminary prediction of the incubation conditions in the three gorges reservoir area. the water conservancy fishery, 1989, 4: 26-30; Luojia, small waves, Liu De Fu, etc. the drift characteristics of two sturgeon eggs in a uniform flow field. the aquatic biology report, 2013, 37(5): 978-.
However, the conventional hydraulic test water tank has the following defects through practice:
1. the common funnel or the suction pipe is usually needed, the roe is repeatedly thrown in a certain position at the upstream in a manual mode for multiple times, the automatic throwing, recovering and transmitting of the roe cannot be realized, and the inconvenience is brought to the actual use operation;
2. the manual fish egg feeding is difficult to control parameters such as fish egg feeding flow (the number of fish eggs fed in per second), feeding position, continuous feeding time and the like;
3. roe proportion is close with water, it is heavier than water, easily sink the end fast when the velocity of flow is less, easily drift along with flowing when the velocity of flow is great, traditional hydraulics test basin height is less (generally highly be less than 50cm), under the slow operating mode of velocity of flow, the roe is still stable just sinking the end in motion after upstream release, if use highly be greater than 80 cm's large-scale basin, the basin width is great (large-scale basin width generally is greater than 80cm), be unfavorable for the video acquisition and the observation of roe motion test (roe motion video is usually shot at the basin side, if the basin width is too big, the roe motion image at the distance lens distal end will take place serious distortion, the distortion.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide an adjustable and controllable fish egg movement test water tank system which is convenient and fast to operate.
In order to achieve the above object, the present invention adopts the following technical solutions:
a fish egg movement test water tank system comprises a water storage tank, a rectangular water tank body arranged above the water storage tank, a rotary vane type tail door arranged at the tail end of the rectangular water tank body, and water in the water storage tank is conveyed into the rectangular water tank body through a circulating water pipeline, and is characterized by further comprising an upstream water stop gate, a downstream water stop gate, a fish egg throwing slide rail vehicle, a fish egg throwing lifting rod, an L type fish egg throwing funnel, a L type fish egg recovery funnel and a fish egg conveying device, wherein,
the upstream water-stop gate and the downstream water-stop gate are respectively arranged at two ends of the rectangular water tank body, and the downstream water-stop gate is positioned at the downstream of the rotary-vane tail gate;
the rectangular water tank body is provided with a slide rail, the roe throwing slide rail vehicle can slide along the slide rail, the roe throwing lifting rod is arranged on the roe throwing slide rail vehicle, the L type roe throwing funnel is arranged on the roe throwing lifting rod, the L type roe recovery funnel is arranged at the outlet of the rectangular water tank body, the short end of the roe conveying device is arranged below the outlet of the L type roe recovery funnel, the high end of the roe conveying device is arranged above the inlet of the L type roe throwing funnel, the roe conveying device can convey the roe recovered by the L type roe recovery funnel into the L type roe throwing funnel, and the water recovered by the L type roe recovery funnel directly falls into the reservoir;
the electromagnetic flowmeter, the variable frequency centrifugal pump and the pipeline electromagnetic valve are used for regulating and controlling the water level flow of the water tank and the fish egg putting flow and time.
The fish egg motion test water tank system is characterized in that the upstream water stop gate, the downstream water stop gate, the rotary vane type tail gate, the electromagnetic flowmeter, the variable frequency centrifugal pump, the pipeline electromagnetic valve, the fish egg putting lifting rod and the fish egg conveying device are controlled by corresponding switches, and each switch position is provided with a remote electronic switch and a manual switch and is matched with water tank intelligent switch operation platform software.
The fish egg movement test water tank system is characterized in that the rectangular water tank body is 20m long, 30cm wide and 1m high, and the bottom and two sides of the rectangular water tank body are made of transparent organic glass.
The water tank system for the roe movement test is characterized by further comprising a water inlet guide groove and a water outlet guide groove, wherein the water inlet guide groove and the water outlet guide groove are horn-shaped and are respectively arranged at two ends of the rectangular water tank body, an inlet of the water inlet guide groove is connected with an outlet of a circulating water pipeline, and an outlet at the bottom of the water outlet guide groove is connected with an inlet of an L type roe recovery funnel.
The fish egg motion test water tank system is characterized in that the lower portion of the water inlet guide groove is provided with a transverse energy dissipation pore plate and a vertical energy dissipation pore plate, the transverse energy dissipation pore plate is arranged above the upper portion of the water inlet guide groove, the vertical energy dissipation pore plate is arranged below the upper portion of the water inlet guide groove, and the vertical energy dissipation pore plate is opposite to an outlet of the circulating water pipeline.
The fish egg motion test water tank system is characterized in that the transverse energy dissipation pore plate and the vertical energy dissipation pore plate are respectively provided with three channels, the height of the vertical energy dissipation pore plate is 1.5-2 times of the pipe diameter of the circulating water pipeline, the pore diameters of the transverse energy dissipation pore plate and the vertical energy dissipation pore plate are 1.0-1.5 cm, and the porosity is 60-80%.
The fish egg movement test water tank system is characterized in that a tail water outlet is arranged on the side of the water outlet guide groove, a flexible filter screen is arranged between the water outlet guide groove and the tail water outlet, and part of water flowing out of the rectangular water tank body is filtered by the flexible filter screen and then falls into a reservoir from the tail water outlet.
The aforesaid fish egg motion test basin system, its characterized in that, aforementioned fish egg conveyer includes: a fish egg conveyor belt, a fish egg baffle, a water curtain spray pipe, a telescopic vertical rod, a pulley and a water diversion hose, wherein,
roe conveyer belt and roe baffle are made by flexible screen cloth, and the roe conveyer belt is by motor drive, and roe baffle fixed mounting is on the roe conveyer belt, and the water curtain spray tube is located the higher one side of roe conveyer belt and communicates with the diversion hose, and scalable pole setting is in the below of roe conveyer belt, and the pulley is installed at the end of scalable pole setting.
The fish egg movement test water tank system is characterized in that the fish egg conveying device is multi-stage conveying, and each stage can flexibly move and place according to the position of the L type fish egg putting funnel.
The fish egg movement test water tank system is characterized in that a switch of the fish egg conveying device is an electrodeless electronic regulating switch.
The invention has the advantages that:
1. by arranging the L-type roe throwing funnel, the L-type roe recovery funnel and the roe conveying device (the roe conveying device can convey roes recovered by the L-type roe recovery funnel to the L-type roe throwing funnel), not only is automatic circulation of roe throwing, recovery and conveying realized, but also the adjustable and controllable roe throwing flow and continuous throwing time are realized, and meanwhile, the damage rate of the roes is effectively reduced;
(2) by arranging the roe throwing lifting rod, the roe throwing at different vertical height positions of the water tank is realized, and the roe releasing process of surface layer spawning fishes (such as four Chinese carps) and bottom layer spawning fishes (such as Chinese sturgeons) can be simulated;
(3) by arranging the flexibly movable roe throwing slide rail vehicle and the multi-stage roe conveying device, the roe is thrown at different transverse positions of the water tank, and the spreading process before the non-stable movement and the relatively stable movement process after the uniform spreading of the roe can be observed by changing the distance between the throwing section and the observation section during the test;
(4) the size of the rectangular water tank body is designed aiming at roe movement tests, the rectangular water tank body is higher in height and narrower in width, and organic glass at the bottom and two sides is designed, so that roe movement tests under a small flow speed working condition (below 0.2 m/s), a medium flow speed working condition (0.2m/s-0.5m/s) and a large flow speed working condition (0.5m/s-1m/s) can be performed, and roe movement rules under a reservoir slow flow environment and a natural river torrent environment can be effectively simulated and researched;
(5) by arranging the upstream water stop gate and the downstream water stop gate, the purposes of not only carrying out a conventional water movement test, but also carrying out a roe still water sedimentation test and a still water turbulence test (the upstream water stop gate and the downstream water stop gate are closed simultaneously to form a still water environment) are realized;
(6) the remote electronic switch and the manual switch are simultaneously arranged at each switch position and are matched with water tank intelligent switch operation platform software, so that the operations of intelligently regulating and controlling the opening and closing of a related power switch, an electromagnetic valve, a water stop gate and the like of a test water tank system at terminals such as a desktop computer, a tablet computer, a mobile phone and the like, regulating the frequency of a variable frequency centrifugal pump, the frequency of a fish egg conveying motor and the like are realized, and the automation degree is high;
(7) through the water inlet guide groove and the water outlet guide groove which are arranged in a horn shape and the transverse energy dissipation pore plate and the vertical energy dissipation pore plate which are arranged at the lower part of the water inlet guide groove, the pulse turbulence of the centrifugal pump is reduced to the maximum extent, so that the water flow in the water tank is stable, and a good water flow condition is created for the movement of fish eggs.
Drawings
FIG. 1 is a schematic diagram of the fish egg movement test water tank system of the present invention;
FIG. 2 is a top view of a portion of the fish egg movement test flume system of FIG. 1;
FIG. 3 is a perspective view of the egg transfer device of FIG. 1;
fig. 4 is a perspective view of an L-type roe dropping funnel of fig. 1;
fig. 5 is a perspective view of an L-type roe collection funnel of fig. 1.
The reference numerals in the drawing indicate that 1-transverse energy dissipation pore plates, 2-vertical energy dissipation pore plates, 3-water inlet guide grooves, 4-upstream water stop gates, 5-slide rails, 6-rectangular water tank bodies, 7-rotary vane type tail gates, 8-downstream water stop gates, 9-water outlet guide grooves, 10-L type roe recovery funnels, 11-flexible filter screens, 12-tail water outlets, 13-water reservoirs, 14-electromagnetic flow meters, 15-variable frequency centrifugal pumps, 16-pipeline electromagnetic valves, 17-circulating water pipelines, 18-roe conveying devices, 19-roe throwing lifting rods, 20-L type roe throwing funnels, 21-roe throwing slide rail vehicles, 180-roe conveying belts, 181-roe baffles, 182-water curtain nozzles, 183-telescopic vertical rods, 184-pulleys and 185-water diversion hoses.
Detailed Description
The invention is described in detail below with reference to the figures and the embodiments.
Referring to fig. 1 and 2, the roe movement test flume system of the invention comprises a reservoir 13, a rectangular flume body 6, a rotary-vane tail door 7, an upstream water-stop gate 4, a downstream water-stop gate 8, a roe-throwing slide rail vehicle 21, a roe-throwing lifting rod 19, a type L roe-throwing funnel 20, a type L roe-recovering funnel 10, a roe conveying device 18 and corresponding control switches.
First, cistern and rectangle basin groove body
The rectangular water tank body 6 is arranged above the water storage tank 13. The rectangular water tank body 6 is 20m long, 30cm wide and 1m high, and the bottom and two sides are made of transparent organic glass. The size of the rectangular water tank body 6 is designed aiming at roe movement tests, the roe movement tests are carried out under the conditions of high height, narrow width and organic glass at the bottom and two sides, roe movement tests under the conditions of small flow speed (below 0.2 m/s), medium flow speed (0.2m/s-0.5m/s) and large flow speed (0.5m/s-1m/s) can be carried out, and roe movement rules under the slow flow environment of a reservoir and the torrent environment of a natural river can be effectively simulated and researched.
The rectangular water tank body 6 is provided with slide rails 5, specifically, the top, the bottom and the two sides of the water tank, wherein the slide rails at the top of the water tank are used for erecting a fish egg putting slide rail vehicle 21 and an acoustic doppler current meter (ADV), and the slide rails at the bottom and the two sides of the water tank are used for erecting other measuring instruments and equipment, such as: high-speed cameras.
The two ends of the rectangular water tank body 6 are respectively provided with a water inlet guide groove 3 and a water outlet guide groove 9 which are both in a horn shape, wherein the inlet of the water inlet guide groove 3 is connected with the outlet of the circulating water pipeline 17, and the bottom outlet of the water outlet guide groove 9 is connected with the inlet of the L type roe recovery funnel 10.
The lower part of the water inlet guide groove 3 is provided with a transverse energy dissipation pore plate 1 and a vertical energy dissipation pore plate 2 which are respectively provided with three channels, the transverse energy dissipation pore plate 1 is arranged above the vertical energy dissipation pore plate 2, the vertical energy dissipation pore plate 2 is just opposite to the outlet of the circulating water pipeline 17, the height of the vertical energy dissipation pore plate 2 is 1.5-2 times of the diameter of the circulating water pipeline 17, the pore diameters of the transverse energy dissipation pore plate 1 and the vertical energy dissipation pore plate 2 are 1.0-1.5 cm, and the porosity is 60-80%, so that the water flow pulse turbulence caused by the variable frequency centrifugal pump 15 can be eliminated to the maximum extent, the water flow in the water tank is stable, and good water flow conditions are created for the.
A tail water outlet 12 is arranged on the side of the water outlet guide groove 9, a flexible filter screen 11 is arranged between the water outlet guide groove 9 and the tail water outlet 12, the mesh number of the flexible filter screen 11 is 16, and part of water flowing out of the rectangular water tank body 6 is filtered by the flexible filter screen 11 and then falls into a reservoir 13 from the tail water outlet 12.
The water in the reservoir 13 is sent to the rectangular water tank body 6 through a circulating water pipeline 17, an electromagnetic flowmeter 14, a variable frequency centrifugal pump 15 and a pipeline electromagnetic valve 16 are installed on the circulating water pipeline 17, and the electromagnetic flowmeter 14, the variable frequency centrifugal pump 15 and the pipeline electromagnetic valve 16 are used for regulating and controlling the water level flow of the water tank and the fish egg putting flow and time.
Two, rotary vane type tail gate, upstream water stop gate and downstream water stop gate
The rotary vane type tail gate 7 is arranged at the tail end of the rectangular water tank body 6, the upstream water stop gate 4 and the downstream water stop gate 8 are respectively arranged at two ends of the rectangular water tank body 6, and the downstream water stop gate 8 is positioned at the downstream of the rotary vane type tail gate 7.
By arranging the upstream water stop gate 4 and the downstream water stop gate 8, the system can perform a conventional water movement test, and can also perform a roe still water sedimentation test and a still water turbulence test.
Thirdly, the fish roe is put in the slide rail car and the lifter is put in to fish roe
The roe dropping carriage 21 can slide along the slide rail 5.
The roe throwing lifting rod 19 is installed on the roe throwing slide rail vehicle 21. Through setting up roe input lifter 19, can realize the input of roe at the vertical not co-altitude position of basin, and then can simulate the roe release process of top layer oviposition fish (like four big domestic fishes) and bottom layer oviposition fish (like chinese sturgeon).
Model four, L roe feeding funnel and model L roe recovery funnel
The L-type roe throwing funnel 20 is installed on the roe throwing lifting rod 19, referring to fig. 4, the inlet and the outlet of the L-type roe throwing funnel 20 are both circular, and the side surface of the inlet is provided with a screw connecting part for connecting the roe throwing lifting rod 19.
An L-type egg recovery funnel 10 is installed at the outlet of the rectangular water bath body 6. referring to fig. 5, the inlet and outlet of the L-type egg recovery funnel 10 are rectangular.
After the water (containing roe) from the outlet of the L-type roe collecting funnel 10 is filtered, the roe is sent to the roe conveyor 18, and the water without roe falls directly into the reservoir 13.
Fish egg conveying device
Referring to fig. 3, the egg transfer device 18 includes: a fish egg conveyor belt 180, a fish egg baffle 181, a water curtain spray pipe 182, a telescopic upright post 183, a pulley 184 and a water diversion hose 185.
The roe conveyor belt 180 is made of flexible mesh cloth with 16 meshes (the aperture is less than 1.5mm, most roe particles have a diameter of 2mm-4mm, and can be used for filtering and separating roe from water), and the roe conveyor belt 180 is driven by a motor.
The water curtain spray pipe 182 is positioned at the higher side of the roe conveyor belt 180 and is communicated with the water diversion hose 185, tap water is introduced through the water diversion hose 185, water curtain spraying can be realized, and roes on the roe conveyor belt 180 are gently flushed into the L-shaped roe throwing funnel 20 (or the next-stage roe conveyor belt 180).
The telescopic vertical rod 183 is arranged below the roe conveyor belt 180, and the length of the telescopic vertical rod can be freely adjusted, so that the conveying gradient of the roe conveyor belt 180 can be changed.
A pulley 184 is mounted at the end of the telescopic upright 183.
The short end of the fish egg conveying device 18 is arranged below the outlet of the L-type fish egg recovery funnel 10, the high end is arranged above the inlet of the L-type fish egg putting funnel 20, and the fish egg conveying device 18 can convey the fish eggs recovered by the L-type fish egg recovery funnel 10 to the L-type fish egg putting funnel 20.
The roe conveying device 18 is a multi-stage conveying device, and each stage can be flexibly moved and placed according to the position of the L type roe throwing funnel 20.
The switch of the roe conveying device 18 is an electrodeless electronic regulating switch, and the speed of the roe conveying belt 180 can be changed by regulating the frequency of the motor of the roe conveying belt 180, so that the roe feeding flow is controlled.
Sixthly, control switch
The upstream water stop gate 4, the downstream water stop gate 8, the rotary vane type tail gate 7, the electromagnetic flowmeter 14, the variable frequency centrifugal pump 15, the pipeline electromagnetic valve 16, the fish egg putting lifting rod 19 and the fish egg conveying device 18 are controlled by corresponding control switches, each switch position is provided with a remote electronic switch and a manual switch, and the intelligent switch operation platform software of a water tank is matched, so that the intelligent operation of a remote terminal (a desktop computer, a tablet computer, a mobile phone and the like) and the manual operation under the emergency fault condition can be realized, the automation degree is high, and the use is very convenient.
Performing low flow rate (for example, flow rate 0.2m/s, flow rate 0.054 m)3The fish egg motion characteristic test under the water depth of 0.9m) comprises the following steps:
step 1: preparation work before test
And (4) checking whether the flexible mesh cloth of the flexible filter screen 11, the roe conveyor belt 180 and the roe baffle 181 is damaged or not, and if so, timely replacing the flexible mesh cloth.
Checking whether the L fish egg recovering funnel 10 and the L fish egg feeding funnel 20 are blocked by foreign matters, and if so, washing the funnels by using clean water to remove the foreign matters.
Checking whether the L-type roe throwing funnel 20 is loose in connection with the roe throwing lifting rod 19, and if so, screwing.
The reservoir 13 is filled with fresh water and the water hose 185 of the roe conveyor 18 is connected to the tap water pipe for testing.
Before carrying out the movement test of different fish eggs or different material models of fish eggs, the relationship between the flow rate of the fish eggs and the frequency of the conveyor belt motor needs to be calibrated.
Step 2: water level flow control for water tank
And entering a water tank intelligent switch operation platform at a remote terminal such as a desktop computer, a tablet personal computer or a mobile phone, and activating an intelligent switch system.
Firstly, a running water test mode is selected, the upstream water stop gate 4 and the downstream water stop gate 8 are automatically opened, a water inlet button is clicked, the electromagnetic flowmeter 14, the variable-frequency centrifugal pump 15 and the pipeline electromagnetic valve 16 are automatically opened, and the variable-frequency centrifugal pump 15 runs at a low frequency.
Then, inputting a flow parameter 0.054m required by the test in the interface of the intelligent switch operating platform of the water tank3And/s, clicking a confirmation button, and slowly adjusting the frequency of the variable-frequency centrifugal pump 15 to the frequency corresponding to the corresponding flow.
And finally, slowly adjusting the opening degree of the rotary-vane tail gate 7 by clicking an opening and closing button of the rotary-vane tail gate 7, stopping the opening and closing operation of the rotary-vane tail gate 7 when the water level in the water tank rises to the test preset water level of 0.9m, and finishing the regulation and control of the water level flow of the water tank.
Step 3: roe feeding flow and time regulation
The fish egg feeding slide rail vehicle 21 moves to the most upstream side of the rectangular water tank body 6 along the slide rail 5 at the top of the water tank, the placing positions of all levels of fish egg conveying devices 18 are adjusted, and the fish eggs cannot slide to the ground in the conveying process.
Clicking the lifting button of the roe throwing lifting rod 19, lifting the funnel outlet of the L-type roe throwing funnel 20 to the water surface, adding quantitative roe (500ml, about 20000 roe) into the water tank, inputting the frequency of the motor of the roe conveying belt 180 in the interface of the intelligent switch operation platform of the water tank, namely 800Hz and 5h in duration, so that the flow (per second) of the roe throwing reaches a preset value (500 +/-50 per second), and after 20 minutes to be operated, the flow of the roe circulating throwing is stable and reaches the preset value.
Step 4: roe movement test measurement
After the regulation and control of the water level flow of the water tank and the egg putting flow and time are completed, the fish egg observation section is arranged at the downstream position which is 10m away from the putting section, an acoustic Doppler current meter (ADV) is erected on a slide rail 5 at the top of the water tank, a high-speed camera is erected on the slide rail 5 on the side face of the water tank, the flow field of the water tank is measured, the movement track data of fish eggs are collected, and the movement rule of a fish egg particle group under the low flow speed condition is researched.
The test of roe still water sedimentation is carried out, and the test process and the operation steps are as follows:
step 1: preparation work before test
And (4) checking whether the flexible mesh cloth of the flexible filter screen 11, the roe conveyor belt 180 and the roe baffle 181 is damaged or not, and if so, timely replacing the flexible mesh cloth.
Checking whether the L fish egg recovering funnel 10 and the L fish egg feeding funnel 20 are blocked by foreign matters, and if so, washing the funnels by using clean water to remove the foreign matters.
Checking whether the L-type roe throwing funnel 20 is loose in connection with the roe throwing lifting rod 19, and if so, screwing.
The reservoir 13 is filled with fresh water and the water hose 185 of the roe conveyor 18 is connected to the tap water pipe for testing.
Before carrying out the movement test of different fish eggs or different material models of fish eggs, the relationship between the flow rate of the fish eggs and the frequency of the conveyor belt motor needs to be calibrated.
Step 2: water level regulation of water tank
And entering a water tank intelligent switch operation platform at a remote terminal such as a desktop computer, a tablet personal computer or a mobile phone, and activating an intelligent switch system.
Firstly, a still water test mode is selected, the upstream water stop gate 4 is automatically opened, the downstream water stop gate 8 is automatically closed, the water inlet button is clicked, the electromagnetic flow meter 14, the variable frequency centrifugal pump 15 and the pipeline electromagnetic valve 16 are automatically opened, the variable frequency centrifugal pump 15 runs at a low frequency, and clean water in the reservoir 13 is slowly pumped into the rectangular water tank body 6.
And when the water level in the water tank rises to the preset water level 0.9m in the test, clicking a closing button of the variable-frequency centrifugal pump 15, clicking a closing button of the upstream water stop gate 4 to form a still water test condition, and finishing the regulation and control of the water level of the water tank.
Step 3: roe hydrostatic sedimentation velocity measurement
And (3) moving the roe throwing slide rail vehicle 21 to a measuring section along the slide rail 5 at the top of the water tank, and erecting a high-speed camera on the slide rail 5 at the side of the water tank.
The lifting button of the roe feeding lifting rod 19 is clicked to lift the funnel outlet of the L-type roe feeding funnel 20 to the water surface, and a fixed amount of roes (50ml, about 2000 roes) are added to the L-type roe feeding funnel 20.
And starting the high-speed camera, collecting the trajectory data of the roe and still water sedimentation, and researching the sedimentation rule of the roe particle population under the still water condition.
Therefore, according to the invention, by arranging the L-type roe throwing funnel 20, the L-type roe recovery funnel 10 and the roe conveying device 18 (the roe conveying device 18 can convey roes recovered by the L-type roe recovery funnel 10 to the L-type roe throwing funnel 20), not only is automatic circulation of roe throwing, recovery and conveying realized, but also the adjustable and controllable roe throwing flow and continuous throwing time are realized, and meanwhile, the damage rate of the roes is effectively reduced.
In addition, the invention realizes the feeding of the roe at different transverse positions of the water tank by arranging the flexibly movable roe feeding slide rail vehicle 21 and the multistage roe conveying device 18, and the spreading process before the non-stable movement of the roe and the relatively stable movement process after the uniform spreading can be observed by changing the distance between the feeding section and the observation section during the test.
It should be noted that the above-mentioned embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the protection scope of the present invention.
Claims (10)
1. A fish egg movement test water tank system comprises a water storage tank (13), a rectangular water tank body (6) arranged above the water storage tank (13), a rotary vane type tail door (7) arranged at the tail end of the rectangular water tank body (6), and water in the water storage tank (13) is conveyed into the rectangular water tank body (6) through a circulating water pipeline (17), and is characterized by further comprising an upstream water stop gate (4), a downstream water stop gate (8), a fish egg putting slide rail vehicle (21), a fish egg putting lifting rod (19), an L type fish egg putting funnel (20), a L type fish egg recovery funnel (10) and a fish egg conveying device (18),
the upstream water-stop gate (4) and the downstream water-stop gate (8) are respectively arranged at two ends of the rectangular water tank body (6), and the downstream water-stop gate (8) is positioned at the downstream of the rotary-vane tail gate (7);
the rectangular water tank body (6) is provided with a sliding rail (5), a fish egg putting sliding rail vehicle (21) can slide along the sliding rail (5), a fish egg putting lifting rod (19) is installed on the fish egg putting sliding rail vehicle (21), an L-type fish egg putting funnel (20) is installed on the fish egg putting lifting rod (19), a L-type fish egg recovering funnel (10) is installed at an outlet of the rectangular water tank body (6), the short end of a fish egg conveying device (18) is arranged below the outlet of the L-type fish egg recovering funnel (10), the high end of the fish egg conveying device is arranged above the inlet of the L-type fish egg putting funnel (20), the fish egg conveying device (18) can convey fish eggs recovered by the L-type fish egg recovering funnel (10) into the L-type fish egg putting funnel (20), and water recovered by the L-type fish egg recovering funnel (10) directly falls into a reservoir (13);
an electromagnetic flowmeter (14), a variable frequency centrifugal pump (15) and a pipeline electromagnetic valve (16) are installed on the circulating water pipeline (17), and the electromagnetic flowmeter (14), the variable frequency centrifugal pump (15) and the pipeline electromagnetic valve (16) are used for regulating and controlling water level flow of the water tank and fish egg putting flow and time.
2. The fish egg movement test flume system of claim 1, wherein the upstream water stop gate (4), the downstream water stop gate (8), the rotary vane tail gate (7), the electromagnetic flow meter (14), the variable frequency centrifugal pump (15), the pipeline electromagnetic valve (16), the fish egg dropping lifting rod (19) and the fish egg conveying device (18) are controlled by corresponding switches, and each switch position is provided with a remote electronic switch and a manual switch and is matched with intelligent flume switch operation platform software.
3. The roe movement test flume system according to claim 1, wherein the rectangular flume body (6) has a length of 20m, a width of 30cm, and a height of 1m, and is made of transparent organic glass at the bottom and both sides.
4. The roe movement test water tank system according to claim 1, further comprising a water inlet guide groove (3) and a water outlet guide groove (9), wherein the water inlet guide groove and the water outlet guide groove are horn-shaped and are respectively arranged at two ends of the rectangular water tank body (6), an inlet of the water inlet guide groove (3) is connected with an outlet of the circulating water pipeline (17), and a bottom outlet of the water outlet guide groove (9) is connected with an inlet of an L-type roe recovery funnel (10).
5. The fish egg movement test water tank system according to claim 4, wherein the lower part of the water inlet guide groove (3) is provided with a transverse energy dissipation pore plate (1) and a vertical energy dissipation pore plate (2), the transverse energy dissipation pore plate (1) is arranged above the vertical energy dissipation pore plate (2) and the vertical energy dissipation pore plate (2) is opposite to the outlet of the circulating water pipeline (17).
6. The roe movement test water tank system according to claim 5, wherein the transverse energy dissipation pore plate (1) and the vertical energy dissipation pore plate (2) are provided with three channels, the height of the vertical energy dissipation pore plate (2) is 1.5-2 times of the pipe diameter of the circulating water pipeline (17), the hole diameters of the transverse energy dissipation pore plate (1) and the vertical energy dissipation pore plate (2) are 1.0-1.5 cm, and the porosity is 60-80%.
7. The roe movement test flume system according to claim 4, wherein a tail water outlet (12) is installed at the side of the effluent guide groove (9), a flexible filter screen (11) is arranged between the effluent guide groove (9) and the tail water outlet (12), and part of water flowing out of the rectangular flume body (6) is filtered by the flexible filter screen (11) and then falls into the reservoir (13) from the tail water outlet (12).
8. The roe movement test flume system according to claim 1, wherein the roe conveying means (18) comprises: a fish egg conveyor belt (180), a fish egg baffle (181), a water curtain spray pipe (182), a telescopic upright rod (183), a pulley (184) and a water diversion hose (185), wherein,
roe conveyer belt (180) and roe baffle (181) are made by flexible screen cloth, and roe conveyer belt (180) are by motor drive, and roe baffle (181) fixed mounting is on roe conveyer belt (180), and water curtain spray tube (182) are located the higher one side of roe conveyer belt (180) and communicate with diversion hose (185), and scalable pole setting (183) set up in the below of roe conveyer belt (180), and the end in scalable pole setting (183) is installed in pulley (184).
9. The roe movement test flume system according to claim 8, wherein the roe conveyor (18) is a multi-stage conveyor, each stage being capable of flexibly moving and placing the roe according to the position of the L-type roe feeding funnel (20).
10. The roe movement test flume system according to claim 8, wherein the switch of the roe transfer device (18) is an electrodeless electronic regulating switch.
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| CN201710405930.9A CN107156004B (en) | 2017-06-01 | 2017-06-01 | Fish egg motion test water tank system |
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| CN201710405930.9A CN107156004B (en) | 2017-06-01 | 2017-06-01 | Fish egg motion test water tank system |
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| CN107156004B true CN107156004B (en) | 2020-07-10 |
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| CN108956088B (en) * | 2018-05-29 | 2020-07-10 | 中国水利水电科学研究院 | Roe motion simulation and visual monitoring system |
| CN110521647B (en) * | 2019-09-17 | 2024-05-07 | 浙江万里学院 | Injection device for introducing exogenous substances into live shrimps and application method thereof |
| CN113951185B (en) * | 2021-11-29 | 2023-04-07 | 重庆交通大学 | Drifting fish egg hatching method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4009782A (en) * | 1975-09-26 | 1977-03-01 | Roe, Inc. | Method and apparatus for sorting and counting fish eggs |
| JP5070610B2 (en) * | 2010-05-28 | 2012-11-14 | 岩手県 | Egg management method for salmonid fish and egg management apparatus for salmonid fish |
| CN202635372U (en) * | 2012-06-01 | 2013-01-02 | 中国水产科学研究院珠江水产研究所 | River pelagic egg and fry quantitative collection net |
| CN204929998U (en) * | 2015-08-27 | 2016-01-06 | 中国长江三峡集团公司 | A kind of portable, environmental protection drift fish-egg harvester |
| CN205233164U (en) * | 2015-12-21 | 2016-05-18 | 上海海洋大学 | Nature of sinking, buoyancy, adhesive egg fry hatching apparatus |
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