CN103404456A - Experimental water flow simulation device capable of adjusting flow velocity - Google Patents
Experimental water flow simulation device capable of adjusting flow velocity Download PDFInfo
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- CN103404456A CN103404456A CN2013103140466A CN201310314046A CN103404456A CN 103404456 A CN103404456 A CN 103404456A CN 2013103140466 A CN2013103140466 A CN 2013103140466A CN 201310314046 A CN201310314046 A CN 201310314046A CN 103404456 A CN103404456 A CN 103404456A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The invention relates to an experimental water flow simulation device, in particular to an experimental water flow simulation device capable of adjusting the flow velocity. The device comprises an experimental device, a water flow generating device and a water flow adjusting device, wherein the experimental device comprises a water trough and a plurality of damping screens mounted in the water trough, and the interior of the water trough is divided into a plurality of water channels by the plurality of damping screens; the water flow generating device comprises a self-suction water pump, a water feeding device and a water discharging device, the water feeding device and the water discharging device are communicated with a water inlet and a water outlet of the self-suction water pump through a water inlet pipe and a water outlet pipe respectively and located in different water channels in the water trough respectively, and water pumped into the self-suction water pump through the water feeding device is pumped out through the water discharging device, so that a water flow is formed; and the self-suction water pump is electrically connected with the water flow adjusting device, the frequency of the self-suction water pump is controlled through the water flow adjusting device, and further, the velocity of the water flow is adjusted. The experimental water flow simulation device has the advantages of small space, visualization, simple structure, convenience in operation, low cost, high safety, wide application range and the like.
Description
Technical field
The present invention relates to experiment and use simulated flow equipment, specifically a kind of simulated flow device of testing use adjustable throttle speed, can simulate the current that flow velocity is less than or equal to 100cm/s, and can immediate observation, to carry out and ocean, experiment that current are relevant.
Background technology
Sea fishery is important part in Chinese national economy.In recent years, supply falls short of demand because product is fished in natural propagation, and at the bottom of seawater, the sowing aquaculture industry undergoes an unusual development rapidly, progressively becomes the important component part of China coastal seas fishery.End sowing aquaculture need consider the end and broadcast the many factors such as sea area water quality, flow velocity, the depth of water, substrate, wherein flow velocity directly affects the end and broadcasts distribution, the survival rate of species, the input strategy of breeding facility, need understanding badly it broadcasts the impact of species, breeding facility end of on.But flow velocity be subjected to morning and evening tides, meteorology, type affect greatlyr, carry out research in this respect in the wild, affected greatly by the nature uncontrollable factor, need ship guarantee, many personnel participation, spend high, can't observe in time, reclaim difficulty, poor stability, the ability to ward off risks a little less than.And laboratory experiment is difficult to continue simulation and is less than or equal to the 100cm/s water velocity, the reliable experiment result degree is lower.Water velocity is difficult to carry out to the related experiment of cultivation species, breeding facility, directly has influence on cultured product exploitation, the breeding facility development of mariculture industry, and then affects culture benefit.
Summary of the invention
In order to overcome present stage field trial, be subjected to the nature uncontrollable factor to affect the disadvantages such as large, required personnel are more, cost is high, visuality is poor, reclaim difficulty, poor stability, danger is high, laboratory experiment credible result degree is lower, the object of the present invention is to provide a kind of simulated flow device of testing by adjustable throttle speed.
The objective of the invention is to be achieved through the following technical solutions:
The present invention includes experimental provision, apparatus for generation of water flow and flow promoter regulator, wherein experimental provision comprises tank and is arranged on a plurality of honeycomb screens in tank, and the inside of described tank is divided into a plurality of water channels by a plurality of honeycomb screens; Described apparatus for generation of water flow comprises self prime pump, water feed apparatus and discharging device, this water feed apparatus and discharging device are connected with water inlet and the delivery port of self prime pump by water inlet pipe and outlet pipe respectively, described water feed apparatus and discharging device lay respectively in water channels different in tank, and described self prime pump is pumped and then formed current by the water that water feed apparatus pumps into by discharging device; Described self prime pump is electrically connected to flow promoter regulator, by flow promoter regulator, controls the frequency of self prime pump, and then regulates water velocity.
Wherein: described tank is the hollow tank, and the inside of this hollow tank is divided into straight water channel and curved water channel by described honeycomb screen, and described water feed apparatus is positioned at the straight water channel of a side or curved water channel, and described discharging device is positioned at the straight water channel of opposite side; The sidewall of described tank is provided with draw-in groove, and each honeycomb screen is arranged in tank by draw-in groove; Described draw-in groove is positioned at the intersection of straight water channel and curved water channel; Described tank is rectified grid and is divided into two semi-circular curved water channels and two straight water channels, and the centre of tank is cistern, and the base plate of this cistern and arbitrary curved water channel is provided with spilled water hole;
Described water feed apparatus is water pipe, and the longitudinal center line of this water pipe is perpendicular to the base plate of described tank, and the water inlet of described water pipe is fixed with bolting silk by pipe collar, and the water side of water pipe is connected with the water inlet of self prime pump by described water inlet pipe; Between the water inlet of described water pipe and the base plate of tank, leave gap; Described discharging device is water pipe, and the longitudinal center line of this water pipe is parallel with the base plate of described tank, by three-way connection, is connected with described outlet pipe in the middle of the sealed at both ends pipe cap that is connected with of described water pipe, water pipe; The water outlet direction of described water pipe is evenly equipped with a plurality of apopores; Described water pipe is connected to the base plate of tank.
Advantage of the present invention and good effect are:
1. the present invention is by hollow tank, self prime pump, frequency converter and other auxiliary equipment, realize that lab simulation is less than or equal to 100cm/s flow velocity current, and can immediate observation, record experimental phenomena, to carry out and ocean, experiment that flow velocity is relevant, have that space is little, visual, simple in structure, easy to operate, cost is low, an advantage such as safe, wide accommodation.
2. the present invention adopts the frequency of Frequency Converter Control self prime pump, and then changes the water pump vane rotating speed, to reach the purpose of regulating flow velocity, can accurately simulate the current that are less than or equal to the 100cm/s flow velocity, accurately holds experiment parameter.
3. the present invention is usingd the tank of hollow as water channel, has both realized recycling of current, but immediate observation experimental subjects situation again can be understood experiment progress again in the time of reduce water consumption in time.
4. the present invention adopts the form of separable assembled, is convenient to safeguard, dismantles, transports.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Wherein: 1 is tank, and 2 is spilled water hole, and 3 is honeycomb screen, and 4 is draw-in groove, 5 is straight water channel, and 6 is curved water channel, and 7 is cistern, and 8 is water feed apparatus, 9 is water inlet pipe, and 10 is outlet pipe, and 11 is discharging device, and 12 is self prime pump, 13 is flange, and 14 is frequency converter, and 15 is power supply, 16 is the frequency converter switch, and 17 is switch indication light, and 18 are the frequency conversion knob, 19 is display floater, and 20 is the frequency converter placing frame, and 21 is power line.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, the present invention includes experimental provision, apparatus for generation of water flow and flow promoter regulator, wherein:
The honeycomb screen 3 that experimental provision comprises tank 1 and is arranged on a plurality of honeycomb screen 3(the present embodiment in tank 1 is four), tank 1 is the hollow tank, the inside of this hollow tank is divided into two straight water channels 5 and two semi-circular curved water channels 6 by four honeycomb screens 3; On the sidewall of straight water channel 5 and the tank 1 of curved water channel 6 intersections, be respectively equipped with draw-in groove 4, each honeycomb screen 3 is arranged in tank 1 by draw-in groove 4.The centre of tank 1 is cistern 7, and the base plate of this cistern 7 and arbitrary curved water channel 6 is provided with spilled water hole 2.The material of tank 1 of the present invention, honeycomb screen 3 and draw-in groove 4 is any high strength in acrylic resin (PP) or prior art, nontoxic, anti-seawater corrosion material.Be specially: tank 1 is welded by base plate, lateral wall and madial wall, and material is the acrylic resin plate that 0.3～0.5cm is thick; Base plate is welded by three parts, and center is the rectangular base plate of a block length 220cm, wide 180cm, and it is the semicircle base plate of 90cm that respectively there is a diameter rectangular base plate broadside both sides; Prolong the base plate outward flange, weld the lateral wall of high 50cm, madial wall is welded in the base plate of base plate outward flange 40cm, height is 50cm, form long 400cm, a wide 180cm, 5, two overall diameter 180cm of straight water channel, the semi-circular curved water channel 6 of interior diameter 100cm with two long 220cm, wide 40cm, be similar to the hollow tank of stadium of track and field shape.Straight water channel 5 and curved water channel 6 inside are cistern 7, and respectively there are the spilled water hole 2 of a diameter 5.0cm in the base plate one semicircular central authorities of side of this cistern 7 and semi-circular curved water channel 6 central authorities.Honeycomb screen 3 is the rectangle acrylic resin plate of high 50cm, wide 40cm, thick 0.3cm, and section cuts out the rectangle rectification passage of six high 40cm, wide 5cm within it; Can produce dissimilar honeycomb screen 3 according to requirement of experiment, enrich the current type.Draw-in groove 4 is positioned at four intersections of the straight water channel 5 of tank 1 and curved water channel 6, prolongs stripe board outer, that madial wall respectively welds two high 50cm, wide 0.5cm, and two stripe board spacings are 0.3cm, form a draw-in groove 4.
Apparatus for generation of water flow comprises self prime pump 12, water feed apparatus 8 water inlet pipes 9, outlet pipe 10 and discharging device 11, water feed apparatus 8 and discharging device 11 are connected with water inlet and the delivery port of self prime pump 12 by water inlet pipe 9 and outlet pipe 10 respectively, and the water inlet of self prime pump 12 and delivery port are connected with flange 13 by bolt, nut respectively.Water feed apparatus 8 and discharging device 11 lay respectively in the interior different water channel of tank 1, and water feed apparatus 8 is positioned at the straight water channel 5 of a side or curved water channel 6, and discharging device 11 is positioned at the straight water channel 5 of opposite side; The water feed apparatus 8 of the present embodiment is positioned at a curved water channel 6, and discharging device 11 is positioned at a straight water channel 5.Water feed apparatus 8 is water pipe, the longitudinal center line of this water pipe is perpendicular to the base plate of tank 1, the water inlet of this water pipe by pipe collar be fixed with bolting silk and and the base plate of tank 1 between leave gap, the water side of water pipe is connected with the water inlet of self prime pump 12 by water inlet pipe 9.Discharging device 11 is water pipe, and the longitudinal center line of this water pipe is parallel with the base plate of tank 1, by three-way connection, is connected with outlet pipe 10 in the middle of the sealed at both ends pipe cap that is connected with of water pipe, water pipe; The water outlet direction of water pipe is evenly equipped with a plurality of apopores, and this water pipe is connected to the base plate of tank 1.Self prime pump 12 pumps and then forms current by the water that water feed apparatus 8 pumps into by discharging device 11.Self prime pump 12 of the present invention is any material with high strength, anti-seawater corrosion effect in engineering plastics or prior art; The material of water feed apparatus 8, water inlet pipe 9, outlet pipe 10, discharging device 11, flange 13 is polyvinylchloride or any material with high strength, anti-seawater corrosion effect.Be specially: water feed apparatus 8 is positioned at a curved water channel 6 of tank 1, apart from base plate 10cm, the lateral wall 5cm place of tank 1, for the PVC water pipe of long 50cm, diameter 3.2cm, perpendicular to the base plate of tank 1; The water inlet of this PVC water pipe is coated with 200 mesh sieve thin,tough silk and fix with pipe collar, water side by the elbow break-in after with diameter be that the water inlet pipe 9 of 0.32cm is bonding, bonding with the water inlet flange 13 of self prime pump 12 again, then by bolt, nut, be fixed on the water inlet of self prime pump 12; Self prime pump 12 power are 1.5kw, and rated frequency is 50Hz, and rotating speed is 1400r/min; The delivery port of self prime pump 12 is fixing by bolt, nut and flange 13, flange 13 is connected with outlet pipe 10 by the PVC adhesive, outlet pipe 10 is by after the elbow break-in, enters in the straight water channel 5 of tank 1, is close to the base plate of tank 1, is connected with discharging device 11 by the PVC adhesive; Discharging device 11 seals with pipe cap for the PVC water pipe of long 40cm, diameter 3.2cm, water pipe two ends, has in water pipe water outlet direction level the apopore that eight diameters are 0.2cm, with the 3.2cm three-way connection, is connected with outlet pipe 10 in the middle of water pipe.
Flow promoter regulator of the present invention is prior art, comprise frequency converter 14, frequency conversion knob 18, display floater 19, frequency conversion switch 16, switch indication light 17 and power line 21, self prime pump 12 is connected with frequency converter 14 by power line 21, the rated output power of frequency converter 14 is 1.5kw, by the frequency conversion knob 18 of frequency converter 14, control the frequency of self prime pump 12, and then change the water pump vane rotating speed, to reach the purpose of regulating water velocity.
In experimentation, by the experiment demand, honeycomb screen 3 is fixed in the draw-in groove 4 in tank 1, to the seawater or the fresh water that add set amount in the straight water channel 5 of tank 1 and curved water channel 6, make water level in straight water channel 5 and curved water channel 6 higher than water feed apparatus 8 and discharging device 11; Open frequency converter switch 16, frequency conversion knob 18 is rotated to deep low gear, self prime pump 12 is turned round with minimum speed, after flow speed stability, according to requirement of experiment, regulate frequency conversion knob 18 again, control water velocity, after flow velocity meets requirement of experiment, experimental subjects is put into to straight water channel 5 and the curved water channel 6 of tank 1, the experimental state of observation experiment object under specific flow conditions.
Embodiment mono-
Experiment as shown in Figure 1, with the simulated flow device of adjustable throttle speed, is applied to carry out different in flow rate the stichopus japonicus behavioral implications is tested.Four honeycomb screens 3 are fixed in the draw-in groove 4 in the tank 1 of hollow, add the seawater that 30cm is high in the straight water channel 5 of tank 1 and curved water channel 6, make in water channel water level higher than water feed apparatus 8 and discharging device 11; Open frequency converter switch 16, frequency conversion knob 18 is rotated to deep low gear, self prime pump 12 is turned round with minimum speed, after flow speed stability, again by regulating frequency conversion knob 18, control water velocity and reach 10cm/s, after flow speed stability, in two straight water channels 5 and two curved water channels 6, throw in respectively 10 of 10ind/kg specification stichopus japonicus, 20 of 100ind/kg specification stichopus japonicus, 40 of 1000ind/kg specification stichopus japonicus, use digital camera, the stichopus japonicus behavior situation of continuous 24 hour records of digital video recorder under simulation 10cm/s flow conditions; After 24 hours, by regulating frequency conversion knob 18, control water velocity and reach 20cm/s, use digital camera, the stichopus japonicus behavior situation of continuous 24 hour records of digital video recorder under simulation 20cm/s flow conditions; After 24 hours, by regulating frequency conversion knob 18, control water velocity and reach 40cm/s, use digital camera, the stichopus japonicus behavior situation of continuous 24 hour records of digital video recorder under simulation 40cm/s flow conditions; After 24 hours, by regulating frequency conversion knob 18, control water velocity and reach 80cm/s, use digital camera, the stichopus japonicus behavior situation of continuous 24 hour records of digital video recorder under simulation 80cm/s flow conditions.
Embodiment bis-
Experiment as shown in Figure 1, with the simulated flow device of adjustable throttle speed, is applied to carry out different in flow rate the adherance stability influence is tested.Four honeycomb screens 3 are fixed in the draw-in groove 4 in the tank 1 of hollow, add the seawater that 40cm is high in the straight water channel 5 of tank 1 and curved water channel 6, make in water channel water level higher than water feed apparatus 8 and discharging device 11; Open frequency converter switch 16, frequency conversion knob 18 is rotated to deep low gear, self prime pump 12 is turned round with minimum speed, after flow speed stability, by regulating frequency conversion knob 18, control water velocity and reach 10cm/s, after flow speed stability again, in two straight water channels 5 and two curved water channels 6, throw in respectively a corrugated plating as adherance, use digital camera, digital video recorder to be recorded in the adherance situation of movement under simulation 10cm/s flow conditions in continuous 10 minutes; After 10 minutes, by regulating frequency conversion knob 18, control water velocity and reach 20cm/s, use digital camera, digital video recorder to be recorded in the adherance situation of movement under simulation 20cm/s flow conditions in continuous 10 minutes; After 10 minutes, by regulating frequency conversion knob 18, control water velocity and reach 40cm/s, use digital camera, digital video recorder to be recorded in the adherance situation of movement under simulation 40cm/s flow conditions in continuous 10 minutes; After 10 minutes, by regulating frequency conversion knob 18, control water velocity and reach 80cm/s, use digital camera, digital video recorder to be recorded in the adherance situation of movement under simulation 80cm/s flow conditions in continuous 10 minutes.
Claims (9)
1. test the simulated flow device of using adjustable throttle speed for one kind, it is characterized in that: comprise experimental provision, apparatus for generation of water flow and flow promoter regulator, wherein experimental provision comprises tank (1) and is arranged on a plurality of honeycomb screens (3) in tank (1), and the inside of described tank (1) is divided into a plurality of water channels by a plurality of honeycomb screens (3); Described apparatus for generation of water flow comprises self prime pump (12), water feed apparatus (8) and discharging device (11), this water feed apparatus (8) and discharging device (11) are connected with water inlet and the delivery port of self prime pump (12) by water inlet pipe (9) and outlet pipe (10) respectively, described water feed apparatus (8) and discharging device (11) lay respectively in water channels different in tank (1), and described self prime pump (12) pumps and then form current by the water that water feed apparatus (8) pumps into by discharging device (11); Described self prime pump (12) is electrically connected to flow promoter regulator, by flow promoter regulator, controls the frequency of self prime pump (12), and then regulates water velocity.
2. by the simulated flow device of the described experiment of claim 1 by adjustable throttle speed, it is characterized in that: described tank (1) is the hollow tank, the inside of this hollow tank is divided into straight water channel (5) and curved water channel (6) by described honeycomb screen (3), described water feed apparatus (8) is positioned at the straight water channel of a side (5) or curved water channel (6), and described discharging device (11) is positioned at the straight water channel of opposite side (5).
3. by the simulated flow device of the described experiment of claim 2 by adjustable throttle speed, it is characterized in that: the sidewall of described tank (1) is provided with draw-in groove (4), and each honeycomb screen (3) is arranged in tank (1) by draw-in groove (4).
4. by the simulated flow device of the described experiment of claim 3 by adjustable throttle speed, it is characterized in that: described draw-in groove (4) is positioned at the intersection of straight water channel (5) and curved water channel (6).
5. by the simulated flow device of the described experiment of claim 1 or 2 by adjustable throttle speed, it is characterized in that: described tank (1) is rectified grid (3) and is divided into two semi-circular curved water channels (6) and two straight water channels (5), the centre of tank (1) is cistern (7), and the base plate of this cistern (7) and arbitrary curved water channel (6) is provided with spilled water hole (2).
6. by the simulated flow device of the described experiment of claim 1 or 2 by adjustable throttle speed, it is characterized in that: described water feed apparatus (8) is water pipe, the longitudinal center line of this water pipe is perpendicular to the base plate of described tank (1), the water inlet of described water pipe is fixed with bolting silk by pipe collar, and the water side of water pipe is connected with the water inlet of self prime pump (12) by described water inlet pipe (9).
7. by the simulated flow device of the described experiment of claim 6 by adjustable throttle speed, it is characterized in that: leave gap between the base plate of the water inlet of described water pipe and tank (1).
8. by the simulated flow device of the described experiment of claim 1 or 2 by adjustable throttle speed, it is characterized in that: described discharging device (11) is water pipe, the longitudinal center line of this water pipe is parallel with the base plate of described tank (1), in the middle of the sealed at both ends pipe cap that is connected with of described water pipe, water pipe, be connected with described outlet pipe (10) by three-way connection; The water outlet direction of described water pipe is evenly equipped with a plurality of apopores.
9. by the simulated flow device of the described experiment of claim 8 by adjustable throttle speed, it is characterized in that: described water pipe is connected to the base plate of tank (1).
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| CN104255421A (en) * | 2014-08-27 | 2015-01-07 | 常州大学 | Experimental device for aquatic plants |
| CN104542395A (en) * | 2014-12-30 | 2015-04-29 | 中国科学院海洋研究所 | Measuring equipment of adhesion in marine benthos |
| CN109699561A (en) * | 2019-02-26 | 2019-05-03 | 山西农业大学 | A kind of jellyfish hydra intelligence breeding system |
| CN111650403A (en) * | 2019-08-02 | 2020-09-11 | 水利部交通运输部国家能源局南京水利科学研究院 | Novel Doppler current profiler calibration device and calibration method thereof |
| CN114112293A (en) * | 2021-08-30 | 2022-03-01 | 水利部交通运输部国家能源局南京水利科学研究院 | Rectification measurement and control system for water tank and flow regulation control method |
| CN114604372A (en) * | 2022-02-25 | 2022-06-10 | 南方海洋科学与工程广东省实验室(湛江) | Shipborne breeding test device and ocean breeding test ship |
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| CN111650403A (en) * | 2019-08-02 | 2020-09-11 | 水利部交通运输部国家能源局南京水利科学研究院 | Novel Doppler current profiler calibration device and calibration method thereof |
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| CN114604372A (en) * | 2022-02-25 | 2022-06-10 | 南方海洋科学与工程广东省实验室(湛江) | Shipborne breeding test device and ocean breeding test ship |
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| CN103404456B (en) | 2015-03-04 |
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