CN107545826A - Short flume experiment device - Google Patents

Short flume experiment device Download PDF

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Publication number
CN107545826A
CN107545826A CN201710956237.0A CN201710956237A CN107545826A CN 107545826 A CN107545826 A CN 107545826A CN 201710956237 A CN201710956237 A CN 201710956237A CN 107545826 A CN107545826 A CN 107545826A
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plate
water
flow
tail
gate
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CN201710956237.0A
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CN107545826B (en
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肖柏青
张政
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Anhui University of Science and Technology
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Anhui University of Science and Technology
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Abstract

A kind of short flume experiment device, including water storage box, water pump, experimental trough, variable-flow weir and tune flow to water tank, the bottom plate of variable-flow weir is provided with water inlet and delivery port, water-stop sheet is provided with around delivery port, overflow plate is provided with the inside of water-stop sheet, overflow plate is connected with elevating lever, variable-flow weir is arranged parallel with experimental trough, both flow to water tank using tune and are connected, tune flows to water tank and is provided with high bottom plate and low bottom plate, drop fairing is provided with above low bottom plate, tune between low bottom plate and drop fairing, which flows to, is provided with rectification water outlet plate on the side plate of water tank, it is provided with the end of experimental trough and divides shape tail-gate.The length of the present apparatus is shorter, and device low manufacture cost, floor space is small, experimental study and teaching suitable for field of hydraulics.

Description

Short flume experiment device
Technical field
The invention belongs to hydraulic experiment Instrument technology field, and in particular to a kind of short flume experiment device.
Background technology
The instrument and equipment that flume experiment device is hydraulics to be commonly used with river dynamics experimental study, substantial amounts of open-channel flow Experiment and silt experiment are required to complete in flume experiment device.Traditional flume experiment device volume and weight are all very big, Some flume experiment devices are also equipped with special groundwater reservoir peace water tower.In recent years, in order to reduce floor space, device is saved Cost of manufacture, substantial amounts of flume experiment device eliminates groundwater reservoir peace water tower, then uses water storage box and steady water tank, tank Experimental provision is gradually to miniaturization.Current flume experiment device is typically by experimental trough, weir, steady water tank, water storage Case and water pump composition, weir and experimental trough are arranged in yi word pattern.Water flows through water pump lifting to steady water tank in water storage box, then according to It is secondary to flow to weir and experimental trough, be finally returned to water storage box, between steady water tank and weir be provided with valve come control into Enter the water flow of experimental trough.Need to be formed flow rate of water flow Latitudinal section in experimental trough along the consistent uniform flow experiment of journey Section carries out experimental study, but this uniform flow experimental section is easily influenceed and tank end tail by the water inlet of upstream weir The water outlet of door influences, and the main method for solving this problem at present is to increase the length of experimental trough, to ensure uniform flow experimental section The length long enough of the water inlet changeover portion of upstream and the water outlet changeover portion in downstream.Therefore, the length of experimental trough is typically very long, then Also longer plus the length of weir, so, the total length of flume experiment device is general all very big, for example, a tank Width is 0.4m flume experiment device, and its total length is often beyond 10m.At present, the length of flume experiment device is larger, length It is long to take excessive experimental site to a certain extent, the utilization ratio of experimental site is influenceed, and cause flume experiment Device can only often be placed in large-scale experiment room, and can not be placed in less room.Therefore, it is shorter to design a kind of length Flume experiment device is necessary.
The content of the invention
For above mentioned problem existing for flume experiment device, in order to ensure the length of uniform flow experimental section in experimental trough Under the premise of sufficiently long, the drawbacks of overcoming flume experiment device length long, while further reduce device cost of manufacture, this hair It is bright to provide a kind of short flume experiment device.
To achieve the above object, the present invention takes following technical proposals:
A kind of short flume experiment device, including water storage box, water pump, experimental trough, variable-flow weir and tune flow to out Water tank;The bottom plate of variable-flow weir is provided with water inlet and delivery port, and water-stop sheet, water-stop sheet inner side are provided with around delivery port Provided with overflow plate, overflow plate is connected with elevating lever, variable-flow weir also as in general weir have rectification orifice plate and Weir plate;Variable-flow weir arranges that both flow to water tank using tune and are connected with experimental trough parallel;Tune flows to water tank and set There are high bottom plate and low bottom plate, drop fairing is provided with above low bottom plate, drop fairing is worn by horizontally disposed fixation Orifice plate and movable perforated plate are formed, and the height for the fairing that drops is slightly below high bottom plate, low bottom plate and drop fairing it Between tune flow to the side plate of water tank and be provided with rectification water outlet plate;It is provided with the end of experimental trough and divides shape tail-gate, divides shape tail-gate It is made up of tail-gate fixed plate and tail-gate portable plate, tail-gate fixed plate and tail-gate portable plate are opened using hibert curve Hole.
Preferably, the water-stop sheet in variable-flow weir and overflow plate are cylindrical shape.
The beneficial effects of the present invention are:
1st, variable-flow weir of the invention is by the flow that adjusts the height of overflow plate to control into experimental trough, Without using the control and measurement completed under conditions of steady water tank to flow, device cost of manufacture is saved, has reduced occupation of land face Product.
2nd, the present invention is arranged parallel by adjusting to flow to water tank and realize variable-flow weir and experimental trough, reduces water The length of groove experimental provision.
3rd, tune of the invention, which flows to water tank, has rectification function, and it is more uniform that it goes out to flow velocity flow profile, tank water inlet transition The length of section is shorter, so as to reduce the length of flume experiment device.
It is 4th, of the invention that to divide shape tail-gate to influence tank afterbody flow-shape smaller, the length of tank water outlet changeover portion compared with It is short, so as to reduce the length of flume experiment device.
Brief description of the drawings
Fig. 1 is the planar structure schematic diagram of the present invention.
Fig. 2 is Fig. 1 A-A section structure diagrams.
Fig. 3 is Fig. 1 B-B section structure diagrams.
Fig. 4 is Fig. 1 C-C section structure diagrams.
Fig. 5 is the structural representation of tail-gate fixed plate.
Fig. 6 is the structural representation of tail-gate portable plate.
In figure:1-water pump, 2-water storage box, 3-water inlet, 4-water-stop sheet, 5-delivery port, 6-overflow plate, 7-steady Water hole plate, 8-variable-flow weir, 9-tune flow to water tank, 10-drop fairing, 11-fixation perforated plate, 12-work Dynamic perforated plate, 13-experimental trough, 14-divide shape tail-gate, 15-elevating lever, 16-weir plate, 17-high bottom plate, 18-low bottom plate, 19-rectification water outlet plate, 20-tail-gate fixed plate, 21-tail-gate portable plate.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Referring to Fig. 1 to Fig. 6, a kind of short flume experiment device, including water storage box 2, water pump 1, experimental trough 13, variable-flow Weir 8 and tune flow to water tank 9;The bottom plate of variable-flow weir 9 was provided with water inlet 3 and delivery port 5, in delivery port 5 weeks Enclose and be provided with water-stop sheet 4, the inner side of water-stop sheet 4 is provided with overflow plate 6, and water-stop sheet 4 and overflow plate 6 are cylindrical shape, the internal diameter of water-stop sheet 4 Roughly equal with the external diameter of overflow plate 6, overflow plate 6 is connected with elevating lever 15, overflow plate 6 under the drive of elevating lever 15 can more than Lower movement, variable-flow weir 8 have water stabling aperture board 7 and weir plate 16 also as in general weir, and weir plate 16 is right angle three Angular weir plate;Variable-flow weir 8 arranges that both flow to water tank 9 using tune and are connected with experimental trough 13 parallel;Adjust flow direction Water tank 9 is provided with high bottom plate 17 and low bottom plate 18, and drop fairing 10 is provided with above low bottom plate 18, and drop fairing 10 It is made up of horizontally disposed fixation perforated plate 11 and movable perforated plate 12, movable perforated plate 12 directly overlays fixed perforated plate 11 Upper (movable perforated plate 11 is made using the big material of density ratio water), the height of drop fairing 10 is slightly below high bottom plate 17, Tune between low bottom plate 18 and drop fairing 10, which flows to, is provided with rectification water outlet plate 19 on the side plate of water tank 9;Testing The end of tank 13, which is provided with, divides shape tail-gate 14, and a point shape tail-gate 14 is made up of tail-gate fixed plate 20 and tail-gate portable plate 21, and tail-gate is solid Fixed board 20 and tail-gate portable plate 21 carry out perforate using hibert curve (Hilbert curves), and hibert curve is one Kind of fractal graph, it constantly refines out small square during grey iterative generation, in the present embodiment when refining out just The square length of side stops refinement when being less than 1/16 times of the width of experimental trough 13, then by the region of hibert curve side Cut away to form tail-gate fixed plate 20, the region of the other side of hibert curve is cut away to form tail by one block of sheet material in addition Door portable plate 21, tail-gate portable plate 21 are connected with an elevating lever, moved up and down so as to realize.
The present invention work process and operation principle be:Start water pump 1 in water storage box 2, current are by water pipe by water inlet 3 Into variable-flow weir 8, water level gradually rises the height up to reaching the top of overflow plate 6, a part in variable-flow weir 8 Current cover overflow plate 6 and return to water storage box 2 by the water pipe being connected with delivery port 5 again, and a part of current are fallen into by weir plate 16 Tune is flowed in water tank 9, and the height of overflow plate 6 is controlled by adjusting elevating lever 15, so as to reach control variable-flow weir 8 The purpose of interior current water level and the water flow by weir plate 16, if the height of overflow plate 6 keeps constant, flowed from weir plate 16 The flow gone out is also constant;Current are flowing to the drop fairing 10 of water tank 9 and rectification water outlet plate 19 the two tools through toning Later its of part for having rectification function, which goes out to flow velocity flow profile, to be become more uniformly, if the uniformity for going out to flow velocity flow profile is not enough managed Think, can move forward and backward movable perforated plate 12 along water (flow) direction, the size of the regulation drop hole of fairing 10 so that through falling Flow distribution of the current of water fairing 10 on the cross-section of river is generally uniform, and then ensures that outflow is adjusted and flow to water tank 9 Current are more uniform;Current flow to water tank 9 from tune and flow into experimental trough 13, move up and down the tail-gate portable plate of point shape tail-gate 14 21, in order to which depth of water regulation in experimental trough 13 is arrived into the size needed;Water flows through undue shape tail-gate 14 and falls into experimental trough again The water storage box 2 of 13 lower sections, completes water circulation.

Claims (2)

1. a kind of short flume experiment device, including water storage box, water pump, experimental trough, it is characterised in that:Also include variable-flow amount Mill weir and tune flow to water tank, and the bottom plate of variable-flow weir is provided with water inlet and delivery port, around delivery port be provided with every Water plate, water-stop sheet inner side are provided with overflow plate, and overflow plate is connected with elevating lever;Variable-flow weir arranges parallel with experimental trough, Both flow to water tank using tune and are connected;Tune flows to water tank and is provided with high bottom plate and low bottom plate, is provided with and falls above low bottom plate Water fairing, drop fairing are made up of horizontally disposed fixation perforated plate and movable perforated plate, and drop fairing Highly it is slightly below high bottom plate, the tune between low bottom plate and drop fairing, which flows to, is provided with rectification water outlet on the side plate of water tank Plate;It is provided with the end of experimental trough and divides shape tail-gate, a point shape tail-gate is made up of tail-gate fixed plate and tail-gate portable plate, and tail-gate is fixed Plate and tail-gate portable plate carry out perforate using hibert curve.
2. short flume experiment device according to claim 1, it is characterised in that:The water-stop sheet and the overflow plate are equal For cylindrical shape.
CN201710956237.0A 2017-10-15 2017-10-15 Short flume experiment device Active CN107545826B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN107545826A true CN107545826A (en) 2018-01-05
CN107545826B CN107545826B (en) 2018-12-25

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0894488A (en) * 1994-09-28 1996-04-12 Mitsubishi Heavy Ind Ltd Two layer flow tester
CN202650351U (en) * 2012-04-01 2013-01-02 西安理工大学 Flume experiment device
CN103065537A (en) * 2013-01-22 2013-04-24 安徽理工大学 Rotary multifunctional open channel testing device
US20150079550A1 (en) * 2013-06-12 2015-03-19 Eaton Corporation Hydraulic training system and method
CN104949718A (en) * 2015-06-12 2015-09-30 浙江大学 Self-circulation open channel experimental device with teaching effect flow digital display function
CN206194209U (en) * 2016-09-12 2017-05-24 扬州大学 Self -circulation experiment appearance is flowed on small -size weir
CN106802228A (en) * 2017-03-14 2017-06-06 河海大学 A kind of experimental tank and its test method
CN206249772U (en) * 2016-09-21 2017-06-13 陈惠玲 A kind of open channel experimental trough tail-gate
CN207704732U (en) * 2017-10-15 2018-08-07 安徽理工大学 Short flume experiment device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0894488A (en) * 1994-09-28 1996-04-12 Mitsubishi Heavy Ind Ltd Two layer flow tester
CN202650351U (en) * 2012-04-01 2013-01-02 西安理工大学 Flume experiment device
CN103065537A (en) * 2013-01-22 2013-04-24 安徽理工大学 Rotary multifunctional open channel testing device
US20150079550A1 (en) * 2013-06-12 2015-03-19 Eaton Corporation Hydraulic training system and method
CN104949718A (en) * 2015-06-12 2015-09-30 浙江大学 Self-circulation open channel experimental device with teaching effect flow digital display function
CN206194209U (en) * 2016-09-12 2017-05-24 扬州大学 Self -circulation experiment appearance is flowed on small -size weir
CN206249772U (en) * 2016-09-21 2017-06-13 陈惠玲 A kind of open channel experimental trough tail-gate
CN106802228A (en) * 2017-03-14 2017-06-06 河海大学 A kind of experimental tank and its test method
CN207704732U (en) * 2017-10-15 2018-08-07 安徽理工大学 Short flume experiment device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
戎贵文 等: ""旋转式明渠流综合实验平台研制与应用"", 《南水北调与水利科技》 *

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