Utility model content
The purpose of this utility model is to be directed to above-mentioned the deficiencies in the prior art, there is provided be able to can effectively eliminate it is closed enter
A kind of closed anti-whirlpool post vortex reducing means of intake pool rear wall in the attached wall whirlpool of pond rear wall.
The purpose of this utility model is achieved in that a kind of anti-whirlpool post vortex reducing means of closed intake pool rear wall, including
Closed intake pool and the suction hose being arranged in closed intake pool, the closed intake pool include closed intake pool
Side wall, closed intake pool rear wall, closed intake pool top plate, closed intake pool bottom plate, the suction hose is placed in closed
One end in intake pool is provided with oviduct, and oviduct is provided with horn mouth;It is characterized in that:
The oviduct rear is provided with anti-whirlpool post, the anti-whirlpool cylinder to oviduct one side be frontal plane, backwards to loudspeaker
The one side of pipe is rear plane, and the two sides towards closed intake pool side wall is arcwall face, and the width of frontal plane is less than rear plane
Length;The length of the closed intake pool rear wall of rear plan range of anti-whirlpool post is 0.12~0.21 times of horn mouth diameter;Institute
The width of plane is 0.3~0.4 times of horn mouth diameter after stating on anti-whirlpool post, and the width of frontal plane is the 0.1 of horn mouth diameter
~0.14 times;The height of the anti-whirlpool post is 1.8~2 times of horn mouth diameter, i.e. frontal plane, rear plane, the height of arcwall face
It is 1.8~2 times of horn mouth diameter.
The arcwall face be shaped as long axial length be 0.3~0.4 times of horn mouth diameter, short axle length be horn mouth diameter
0.1~0.13 times of 1/4 ellipse.
A kind of closed anti-whirlpool post of intake pool rear wall according to claim 1 disappears vortex method, it is characterized in that:Including envelope
Enclosed intake pool and the suction hose being arranged in closed intake pool, closed intake pool include closed intake pool side wall,
Closed intake pool rear wall, closed intake pool top plate, closed intake pool bottom plate, are placed in closed intake pool in suction hose
One end be provided with oviduct, oviduct is provided with horn mouth;Anti- whirlpool post is installed at oviduct rear, wherein, anti-whirlpool cylinder is to loudspeaker
Pipe one side is frontal plane, and the one side backwards to oviduct is rear plane, and the two sides towards closed intake pool side wall is arc
Face, the width of frontal plane are less than the length of rear plane;The length of the closed intake pool rear wall of rear plan range of anti-whirlpool post is loudspeaker
0.12~0.21 times of mouth diameter;The width of plane is 0.3~0.4 times of horn mouth diameter after on the anti-whirlpool post, preceding flat
The width in face is 0.1~0.14 times of horn mouth diameter;The height of the anti-whirlpool post is 1.8~2 times of horn mouth diameter, i.e.
Frontal plane, rear plane, the height of arcwall face are 1.8~2 times of horn mouth diameter;
Current flow into closed intake pool, and after current touch anti-whirlpool post, the space that current are also easy to produce whirlpool is filled out by anti-whirlpool post
Mend, when water flows through anti-whirlpool post, water body is broken up, and each layer flow energy exchanges, two in anti-whirlpool post of the current of oviduct both sides
Clockwise respectively, counterclockwise flow in the presence of arcwall face, so as to which oviduct both sides current are spaced, without interfering with each other through loudspeaker
Mouth enters oviduct, suction hose.According to being flowed in closed intake pool, by controlling the width of frontal plane, rear plane to adjust
The position of two cambered surfaces is saved, reaches optimal rectification effect.
The arcwall face be shaped as long axial length be 0.3~0.4 times of horn mouth diameter, short axle length be horn mouth diameter
0.1~0.13 times of 1/4 ellipse.
Rational in infrastructure, the advanced science of method of the present utility model, by the utility model, for loudspeaker in closed intake pool
The water suction of pipe is intake for surrounding, but because the current between oviduct and rear wall are around entering by oviduct both sides, and is flowing into loudspeaker
During pipe, stopped by rear wall so that the fluidised form at oviduct rear wall becomes sufficiently complex.The utility model is in loudspeaker
Pipe rear wall sets an anti-whirlpool post through design, 0.12~0.21D of the anti-closed intake pool rear wall of whirlpool column length back gauge(D is loudspeaker
Mouth diameter).The shape of cross section of anti-whirlpool post is designed according to closed intake pool rear wall current flow direction, anti-whirlpool post
The long straight flange in cross section grows 0.3~0.4D, and short straight flange grows 0.1~0.14D, and both sides curve arc is 1/4 ellipse, oval long axial length
0.3~0.4D, short axle length 0.1~0.13D, 1.8~2D of anti-whirlpool pillar height.After setting anti-whirlpool post, current are also easy to produce the sky in whirlpool
Between be padded, water body is broken up, and each layer flow energy exchanges, and current are along anti-whirlpool post clockwise flow, right side water on the left of oviduct
Stream is spaced along anti-whirlpool post counterclockwise flow, both sides current, without interfering with each other into oviduct.
The purpose of this utility model is that the region of whirlpool is also easy to produce for rear wall in closed intake pool, utility model closing
The anti-whirlpool post of formula intake pool rear wall disappears vortex method, devises a kind of anti-whirlpool post by this method, the anti-whirlpool post arranged is according to envelope
Size corresponding to the physical dimension use of enclosed intake pool, and closed intake pool rear wall feature position is arranged in, can be effective
Eliminate the attached wall whirlpool of closed intake pool rear wall.The utility model uses fluid mechanics principle, geometry of space and pumping plant intake pool
Design theory, the innovation to the preventing and treating of closed intake pool attached wall whirlpool, separates the current at intake pool rear wall, and fill up with anti-whirlpool post
There is the water body of vortex location, break up water body, reconfigure water body, reduce the vorticity speed of current, so as to reach preventing and treating envelope
The effect that the attached wall whirlpool of enclosed intake pool occurs.
Reasonable in the utility model structure, simple and science, is to be based on fluid mechanics principle, geometry of space and pumping plant
Intake pool design theory, prevents and treats closed intake pool the innovation of whirlpool measure, the anti-whirlpool post, by rational parameter designing,
Arrangement, make closed intake pool that the region water body of vortex easily occur and broken up, re-start energy exchange, more smoothed out
Fluidised form, and then suppress vortex generation.
Currently, with the transformation of national Large Or Medium Type Irrigation Areas and the implementation of renovation and rebuilding of pump station, various lots of built pumping plant
The situation that repair and maintenance is difficult, safe operation problem is serious is faced, its intake pool form can be transformed into closed intake pool;With
Open type intake pool to closed intake pool to develop, expand closed intake pool stable operation scope, improve closed water inlet
Pond Prevention and dissipation ability seems very necessary.This will produce larger economic value and social benefit.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings:
A kind of anti-whirlpool post vortex reducing means of closed intake pool rear wall, including closed intake pool and be arranged at it is closed enter
Suction hose 7 in pond, closed intake pool include closed intake pool side wall 2, closed intake pool rear wall 3, it is closed enter
Pond top plate 5, closed intake pool bottom plate 6, oviduct 1 is provided with one end that suction hose 7 is placed in closed intake pool, in loudspeaker
Horn mouth is set on pipe 1, and water flows through horn mouth into oviduct 1, suction hose 7;Anti- whirlpool post 4 is installed at the rear of oviduct 1, its
In, anti-whirlpool post 4 is frontal plane 9 towards the one side of oviduct 1, and the one side backwards to oviduct 1 is rear plane 8, towards closed water inlet
The two sides of pond side wall 2 is arcwall face 10, and the width of frontal plane 9 is less than the length of rear plane 8;The distance of rear plane 8 of anti-whirlpool post 4
The length of closed intake pool rear wall 3 is 0.12~0.21 times of horn mouth diameter;The width of plane 8 after on the anti-whirlpool post 4
For 0.3~0.4 times of horn mouth diameter, the width of frontal plane 9 is 0.1~0.14 times of horn mouth diameter;The height of anti-whirlpool post 4
For 1.8~2 times of horn mouth diameter, i.e. frontal plane 9, rear plane 8, the height of arcwall face 10 be horn mouth diameter 1.8~
2 times;Arcwall face 10 be shaped as long axial length be 0.3~0.4 times of horn mouth diameter, short axle length be horn mouth diameter 0.1~
0.13 times of 1/4 ellipse;
In use, current flow into closed intake pool, after current touch anti-whirlpool post 4, current are also easy to produce the space quilt in whirlpool
Anti- whirlpool post 4 is filled up, and when water flows through anti-whirlpool post 4, water body is broken up, and each layer flow energy exchanges, and the current of the both sides of oviduct 1 are anti-
Clockwise respectively, counterclockwise flow in the presence of two arcwall faces 10 of whirlpool post 4, so as to which the both sides current of oviduct 1 are spaced, mutually
Intrusively oviduct 1, suction hose 7 are not entered through horn mouth.According to being flowed in closed intake pool, by control frontal plane, after
The width of plane can adjust the position of two cambered surfaces, reach optimal rectification effect.
We can set D as horn mouth diameter, then, the rear plane 8 of anti-whirlpool post 4 is away from closed intake pool rear wall 3
Length is 0.12~0.21D.The width of rear plane 8 of anti-whirlpool post 4 is 0.3~0.4D, and the width of frontal plane 9 is 0.1~0.14D, two
Side arcwall face 10 be 1/4 ellipse, oval long 0.3~0.4D of axial length, short axle grow 0.1~0.13D.Anti- whirlpool post 4 high 1.8~
2D。