CN108884649A - Water intaking hole and equipment - Google Patents
Water intaking hole and equipment Download PDFInfo
- Publication number
- CN108884649A CN108884649A CN201780020163.8A CN201780020163A CN108884649A CN 108884649 A CN108884649 A CN 108884649A CN 201780020163 A CN201780020163 A CN 201780020163A CN 108884649 A CN108884649 A CN 108884649A
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- China
- Prior art keywords
- water
- flow path
- tabular component
- hole
- water intaking
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
- E02B9/04—Free-flow canals or flumes; Intakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
- Sewage (AREA)
Abstract
Have：First tabular component (17), it is extended with the state being impregnated in water along from rear wall towards the direction of the upstream side of the flowing relative to water, first flow path (26) are separated out comprising the upper surface (17a) opposed with lower end (38A) of suction inlet (38), and between the inner bottom surface (11a) in hole main body (11)；Second tabular component (18) is extended along the direction from rear wall towards upstream side with the state being impregnated in water, is set to the top of suction inlet (38)；Second flow path (27) is arranged between the first tabular component (17) and the second tabular component (18)；Third flow path (28), configuration is on the second tabular component (18) and makes water flowing.
Description
Technical field
The present invention relates to have hole main body and the water intaking for the pump that flowing water is drawn in the main body of hole is cheated and set
It is standby.
Background technique
In the past, in steam power plant, desulfurizer is used in order to be purified to exhaust gas.Such desulfurizer
When purifying to exhaust gas, the purification of exhaust gas is carried out by making water (for example, seawater) landing above exhaust gas.
Desulfurizer have water intaking hole, the water intaking hole have hole main body and for hole main body in flowing water draw
Pump.Pump includes suction line and the suction inlet in the setting of the lower end of suction line.
Said pump configuration carries out the water supplied to condenser discharging water for the cooling seawater as cooling water in releasing
In road.Tailrace used in steam power plant be large-sized water route on depth direction and width direction.
A part and suction inlet of the suction line of pump are impregnated in the seawater flowed in tailrace in the midway of tailrace.
As above-mentioned tailrace, the tailrace of overflow type is used.When using such pump, from the sight of the decline for the performance for inhibiting pump
Point sets out, and inhibits the phenomenon that the generation of air suction vortex is most important.
Patent document 1 is disclosed to inhibit air entrained vortex around the pump of bottom configuration for not being the hole of overflow type
The anti-locking apparatus of the vortex of draining pump for the purpose of the case where generation of stream.
Citation
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2001-214898 bulletin
Summary of the invention
The summary of invention
Subject to be solved by the invention
However, being sucked in the past in the pump being configured in tailrace being configured with the inner bottom surface close position of tailrace
Mouthful.Therefore, it is necessary to extend the length of suction line.
In this way, when extending the length of suction line, the cost increase of suction line, and the main shaft pumped is elongated, it is therefore desirable to
Separately supporting member (bearing components) are set, so as to cause the cost increase in water intaking hole.
On the other hand, in patent document 1, any consideration is not made about the problem of such cost increase fetched water and cheated.
It should be noted that previous, the inner bottom surface of tailrace is set as advising at a distance from the lower end of suction inlet according to equipment
Fixed distance.Therefore, when merely the top of the inner bottom surface compared with the past in tailrace configures suction inlet, the interior bottom of tailrace
Face increases at a distance from the lower end of suction inlet than previous, and vortex countermeasure may become difficult, therefore not be available such hand
Method.
Therefore, the purpose of the present invention is to provide a kind of generations for being able to suppress air suction vortex, and do not make flow path
Bottom surface at a distance from the lower end of suction inlet from previous distance change and can reduce water intaking hole cost water intaking hole and
Equipment.
Solution for solving the problem
The water intaking hole of first form of the invention has：Main body is cheated, extends along prescribed direction, makes water from upstream side direction
Downstream side circulation；Rear wall is arranged in the hole main body along the width direction of the hole main body；Pump, it includes described in sucking
The suction inlet of water, and there is the suction being impregnated in the upstream side region flowing water positioned at the upstream side of the hole main body
Enter pipe；First tabular component, with the state that is impregnated in the water along from the rear wall towards the direction of the upstream side
Extend, the lower section of the suction inlet is set, have the upper surface opposed with the lower end of the suction inlet, and with the hole main body
Inner bottom surface between be separated out first flow path；And second tabular component, with the state that is impregnated in the water along from described
The direction of rear wall towards the upstream side extends, and the top of the suction inlet is arranged in, and between first tabular component
It is separated out second flow path, there is the third flow path for the water flowing, the suction line in the top of second tabular component
It is configured in a manner of penetrating through second tabular component.
In this way, the first plate of position setting in the inner bottom surface than cheating main body against the top and than the lower end of suction inlet on the lower
Component, thus, it is possible to the upper tables of distance and the first tabular component in the lower end for the inner bottom surface and suction inlet for making previous hole main body
On the basis of the distance of face and the lower end of suction inlet is consistent, shorten the length for the suction line being impregnated in water.
Also, it by the shortening of the length of suction line, can reduce the cost of suction line, and do not need separately to be arranged pair
The supporting member (bearing components) that suction line is supported, therefore can reduce the cost in water intaking hole.
In addition, in a manner of extending along the direction from rear wall towards upstream side, being inhaled in the state of being impregnated in water
The second tabular component is arranged in the top of entrance, and thus, it is possible to will separate the between the first tabular component and the second tabular component
It two flow paths and configures on the second tabular component and the third flow path that contacts flowing water with air is kept completely separate.Exist as a result,
When producing air suction vortex in third flow path, air suction vortex is able to suppress to second flow path by the second tabular component
Movement.Moreover, being able to suppress contact of the flowing water with air in second flow path, therefore it is able to suppress in second flow path
Flowing water generates the case where air suction vortex.
In addition, the rear wall, which can be, to be separated into the hole main body in the water intaking hole of the second form of the invention
The overflow weir of the upstream side region and downstream side region, and the height of the overflow weir is set as making in the upstream side region stream
A part of overflow of the dynamic water and flow into the downstream side region.
In this way, overflow weir can be used as rear wall.
In addition, may include interconnecting part in the water intaking hole of third form of the invention, interconnecting part setting is overflow described
The part opposed with the first flow path in weir is flowed, makes the water flowed in the first flow path from the upstream lateral areas
Domain is connected to the downstream side region.
In this way, interconnecting part is arranged in overflow weir, via interconnecting part, make in first flow path flowing water from the upper of overflow weir
Swim effluent downstream, thus, it is possible to reduce the flow of flowing water and the flowing water in second flow path in third flow path
The difference of flow.Thereby, it is possible to inhibit using the difference of the flow of flowing water in second flow path and third flow path as the bias current of cause
Generation.That is, being able to suppress using bias current as the decline of the pump performance of cause.
In addition, in the water intaking hole of the 4th form of the invention, first tabular component and the second tabular component can be with
It is to be configured in the mode parallel with the hole inner bottom surface of main body.
In this way, the first tabular component and the second tabular component can be configured in the mode parallel with the hole inner bottom surface of main body.
In addition, can be in the water intaking hole of the 5th form of the invention, second tabular component with the hole to lead
The mode that the inner bottom surface of body is parallel configures, and first tabular component is with making the second flow path towards the rear wall
The mode that depth deepens is arranged obliquely the upper surface of first tabular component relative to the inner bottom surface of the hole main body.
In this way, by being arranged obliquely the upper surface of the first tabular component relative to the inner bottom surface of hole main body, so that water exists
Is flowed in a manner of along the upper surface of the first tabular component in second flow path, thus can will in second flow path flowing water
It is guided to towards the direction of suction inlet.
In addition, in the water intaking hole of the 6th form of the invention, it can be in first tabular component and the second plate structure
A pair of of side positioned at width direction of part, which is respectively set, is separated the width direction of the first flow path to third flow path
Side wall.
It, being capable of constriction the in this way, by the way that the side wall that is separated to the width direction of first flow path to third flow path is arranged
One flow path to third flow path width.As a result, for example, configured with the water for being able to suppress the generation being vortexed in water in second flow path
In the case that middle vortex inhibits component, inhibit component that can effectively inhibit the generation being vortexed in water by being vortexed in water.
In addition, in the water intaking hole of the 7th form of the invention, it can be in the suction being configured in the second flow path
Vortex in the water for the generation being vortexed in the water being able to suppress in the second flow path is configured around entrance inhibits component.
In this way, by being configured around the suction inlet being configured in second flow path in the water being able to suppress in second flow path
Vortex inhibits component in the water of the generation of vortex, is able to suppress to be vortexed the decline of the performance of the pump for cause in water.
In addition, in the water intaking hole of the 8th form of the invention, it can be in first tabular component or second plate
The guiding elements for guiding the water flowed in the second flow path to the suction inlet is arranged in shape component.
By the way that the guiding elements of such structure is arranged, can by second flow path flowing water to towards suction inlet
Direction guidance.
In addition, the equipment of the 9th form of the invention may include above-mentioned water intaking hole.
The equipment of such structure is able to suppress the generation of air suction vortex, and does not make bottom surface and the suction inlet of flow path
The distance of lower end changes and can reduce the cost in water intaking hole from previous distance.
Invention effect
In accordance with the invention it is possible to inhibit the generation of air suction vortex, and the bottom surface of flow path and the lower end of suction inlet are not made
Distance from previous distance change and can reduce water intaking hole cost.
Detailed description of the invention
Fig. 1 is the top view of the major part in the water intaking hole of first embodiment of the invention.
Fig. 2 is the A in water intaking hole shown in FIG. 11-A2The cross-sectional view in line direction.
Fig. 3 is the A in water intaking hole shown in FIG. 13-A4The cross-sectional view in line direction.
Fig. 4 is by the cross-sectional view of the structure amplification around the suction inlet and suction inlet in water intaking hole shown in Fig. 2.
Fig. 5 is the cross-sectional view of the major part in the water intaking hole of the variation of first embodiment of the invention.
Fig. 6 is the top view of the major part in the water intaking hole of second embodiment of the present invention.
Fig. 7 is the L in water intaking hole shown in fig. 61-L2The cross-sectional view in line direction.
Fig. 8 is the perspective view that vortex inhibits component in Fig. 6 and water shown in Fig. 7.
Fig. 9 is the cross-sectional view of the major part in the water intaking hole of third embodiment of the present invention.
Figure 10 is the cross-sectional view of the major part in the water intaking hole of the variation of third embodiment of the present invention.
Figure 11 is the cross-sectional view of the major part in the water intaking hole of the 4th embodiment of the invention.
Figure 12 is the cross-sectional view of the major part in the water intaking hole of the variation of the 4th embodiment of the invention.
Specific embodiment
(first embodiment)
Fig. 1 is the top view of the major part in the water intaking hole of first embodiment of the invention.In Fig. 1, omits and constitute
The pump main body 35 shown in Fig. 2 of pump 15 and the diagram of suction inlet 38, only illustrate suction line 37.In Fig. 1, C is indicated in hole main body
Flowing water (hereinafter referred to as " water C ") in 11, R1 indicate to be located at the position than overflow weir 13 (an example of rear wall) on the upstream side
It cheats main body 11 (hereinafter referred to as " upstream side region R1 "), R2 indicates the hole main body for being located at the position than 13 downstream of overflow weir
11 (hereinafter referred to as " downstream side region R2 ").Water C also includes seawater etc..
In addition, B1 indicates the water C located on the upstream side than the first tabular component 17 and the second tabular component 18 stream in Fig. 1
Dynamic direction (hereinafter referred to as " direction B1 "), B2 indicate the direction (hereinafter referred to as " side B2 of the water C flowing of downstream side region R2
To "), G indicates the direction (hereinafter referred to as " direction G ") of the water C flowing in third flow path 28.In Fig. 1, X-direction indicates hole master
The extending direction of body 11, Y-direction indicate that the width direction of hole main body 11, Z-direction indicate that the depth direction of hole main body 11 (is led in hole
The depth direction of flowing water in body 11).
Fig. 2 is the A in water intaking hole shown in FIG. 11-A2The cross-sectional view in line direction.In Fig. 2, Ca is indicated in third flow path 28
The upper surface (hereinafter referred to as " upper surface Ca ") of flowing water C.In Fig. 2, for knot identical with structural body shown in FIG. 1
Structure part marks same symbol.
Fig. 3 is the A in water intaking hole shown in FIG. 13-A4The cross-sectional view in line direction.In Fig. 3, for Fig. 1 and shown in Fig. 2
The identical structure division of structural body marks same symbol.
Fig. 4 is by the cross-sectional view of the structure amplification around the suction inlet and suction inlet in water intaking hole shown in Fig. 2.In Fig. 4
In, D indicate suction inlet 38 lower end 38A diameter (hereinafter referred to as " diameter D "), I indicate suction line 37 central axis (hereinafter,
Referred to as " central axis I "), J indicate from the distance of the upper surface 17a of the tabular component 17 of lower end 38A to first of suction inlet 38 (with
Under, referred to as " distance J "), K indicates the distance (hereinafter referred to as " distance K ") from central axis I to overflow weir 13.In Fig. 4, for
Structure division identical with structural body shown in FIG. 1 to FIG. 3 marks same symbol.
The water intaking hole 10 of referring to Fig.1~Fig. 4, first embodiment are in equipment (for example, firepower equipment or chemical device
Deng) setting device, have hole main body 11, as rear wall an example overflow weir 13, pump 15, side wall 16-1~16-4, first
Tabular component 17, the second tabular component 18, first flow path 26, second flow path 27, third flow path 28, interconnecting part 31.
Cheating main body 11 has base plate 11A and a pair of sidewalls portion 11B, 11C.Base plate 11A extends in X direction, has hole
The inner bottom surface 11a of main body 11.A pair of sidewalls portion 11B, 11C are set to a pair of end of the Y-direction of base plate 11A.An opposite side as a result,
Wall portion 11B, 11C is arranged opposite in the Y direction.The hole main body 11 for being set as above structure extends in X direction (prescribed direction), makes water
C circulates from the upstream side toward the downstream side.
Overflow weir 13 is arranged in the main body 11 of hole throughout Y-direction.The lower end of overflow weir 13 and the inner bottom surface of base plate 11A
11a connection.In 2 ends of overflow weir 13 for being located at Y-direction, the end of a side is connect with sidewall portion 11B, the end of another party
Portion is connect with sidewall portion 11C.Overflow weir 13 will be divided into upstream side region R1 and downstream in the main body 11 of hole in the X direction as a result,
Side region R2.
Under the height of overflow weir 13 is set as enabling a part overflow of flowing water C in the side region R1 of upstream and flows into
Swim the height of side region R1.
Pump 15 has pump main body 35, suction line 37, suction inlet 38.Pump main body 35 has the mechanism (not shown) for drawing water C.
Pump main body 35 is connect with one end of suction line 37.
Suction line 37 extends along Z-direction.A part (lower end side) of suction line 37 is impregnated in the upstream side of overflow weir 13
In flowing water C.The other end of suction line 37 configures between the first tabular component 17 and the second tabular component 18.Suction line 37
It is configured in a manner of penetrating through the second tabular component 18.
When the diameter of the lower end 38A of suction inlet 38 is D, the central axis I and 13 distance K of overflow weir of suction line 37 can be with
It is suitably set in the range of such as 0.75D~1.0D.By the set distance K in such range, it is able to suppress second
The generation being vortexed in water in road 27.
The other end of suction line 37 is arranged in suction inlet 38.Suction inlet 38 is configured in the first tabular component 17 and the second plate
Between component 18.The sucking of suction inlet 38 flowing water C in second flow path 27.
As suction inlet 38, such as horn mouth can be used.The diameter D of the lower end 38A of suction inlet 38 can be according to purpose
And it suitably sets.
Side wall 16-1~16-4 is the component of plate.Upstream side region R1 of the side wall 16-1~16-4 in the main body 11 of hole
In, in the Y direction according to side wall 16-1, side wall 16-2, side wall 16-3, side wall 16-4 sequence vacate as defined in compartment of terrain match
It sets.What side wall 16-1,16-4 were set to the first tabular component 17 and the second tabular component 18 is located at Y-direction (the first tabular component
17 and second tabular component 18 width direction) a pair of of side.Side wall 16-1,16-4 is to first flow path to third stream as a result,
The width direction on road 26~28 is separated.
Side wall 16-1 is opposed with sidewall portion 11C with the state separated from sidewall portion 11C.Side wall 16-4 is with from sidewall portion 11B
Isolated state is opposed with sidewall portion 11B.The side wall 16-1 in Y-direction is less than sidewall portion 11B at a distance from side wall 16-4 as a result,
At a distance from sidewall portion 11C.
Side wall 16-1~16-4 is orthogonal with the inner bottom surface 11a of base plate 11A, and lower end is connect with base plate 11A.Positioned at X
The end of a side of the side wall 16-1~16-4 in direction is connect with overflow weir 13.The upper end configuration of side wall 16-1~16-4 is than overflowing
Flow the high position in the upper end on weir 13.Adjacent 2 side wall in side wall 16-1~16-4 to first flow path to third flow path 26~
28 width direction (Y-direction) is separated.
In this way, by be arranged the side wall 16-1 that the width direction of first flow path to third flow path 26~28 is separated~
16-4, can constriction first flow path to third flow path 26~28 width.As a result, for example, being configured with energy in second flow path 27
Enough inhibit in the water for the generation being vortexed in water in the case where vortex inhibition component, it can be effectively by being vortexed inhibition component in water
Inhibit the generation being vortexed in water.
First tabular component 17 is the tabular component of rectangle.State setting of first tabular component 17 to be immersed in water C
Lower part between side wall 16-1~16-4.The both ends of the Y-direction of first tabular component 17 and the setting in side wall 16-1~16-4
2 side walls in adjacent position connect.The end of a side in the both ends of the X-direction of first tabular component 17 and overflow weir 13
Lower part connection.
First tabular component 17 extends along the direction from overflow weir 13 towards upstream side.First tabular component 17 with bottom
The mode that the inner bottom surface 11a of plate portion 11A is parallel configures.First tabular component 17 is right between the inner bottom surface 11a of base plate 11A
The depth direction (Z-direction) of first flow path 26 is separated.
First tabular component 17 has the upper surface 17a and lower surface 17b as plane.Upper surface 17a across water C and with
Second tabular component 18 is opposed.Lower surface 17b is arranged opposite with the inner bottom surface 11a of base plate 11A across water C.First plate
The upper surface 17a of component 17 is opposed with the lower end of suction inlet 38 and configures in the lower section of suction inlet 38.First tabular component 17
Upper surface 17a is separated from suction inlet 38.
When the diameter of the lower end 38A of suction inlet 38 is D, the lower end 38A and upper surface 17a distance J of suction inlet 38 can
To be suitably set in the range of such as 0.3D~0.5D.By the set distance J in such range, it is able to suppress second
The generation being vortexed in water in road 27.
The thickness of first tabular component 17 can be such as 500mm when concrete structure (, the first tabular component 17 be)
In the range of suitably set.Moreover, the material as the first tabular component 17, preferably have water resistance (use seawater as
When water C, be sea water resistance) material.As such material, such as concrete can be used.
It, can be under the inner bottom surface and suction inlet for making previous hole main body by with the first above-mentioned tabular component 17
On the basis of the distance at end and the upper surface 17a of the first tabular component 17 and the lower end 38A distance J of suction inlet 38 are consistent, contracting
The length of the short suction line 37 being immersed in water C.
The length for shortening suction line 37 in this way, can reduce the cost of suction line 37, and do not need separately to be arranged
To the supporting member (not shown) (bearing components) that suction line 37 is supported, therefore it can reduce the cost in water intaking hole 10.
Second tabular component 18 is the tabular component of rectangle.State setting of second tabular component 18 to be impregnated in water C
Between being located at side wall 16-1~16-4 of top of the first tabular component 17.
The both ends of the Y-direction of second tabular component 18 and 2 for being set to adjacent position in side wall 16-1~16-4
Side wall connection.The end of a side in the both ends of the X-direction of second tabular component 18 is connect with the top of overflow weir 13.Second plate
Shape component 18 extends along the direction from overflow weir 13 towards upstream side.Second tabular component 18 is with the interior bottom with base plate 11A
Face 11a parallel mode configures.
Second tabular component 18 has upper surface 18a and lower surface 18b, the through hole 18A as plane.Upper surface 18a
The bottom of third flow path 28 is separated.Lower surface 18b is opposed with the upper surface 17a of the first tabular component 17 across water C.
Through hole 18A is the hole for being inserted into suction line 37.Second tabular component 18 can for example, by with previously described first plate
17 same thickness of shape component and identical material are constituted.
By the way that the second above-mentioned tabular component 18 is arranged, can will separate in the first tabular component 17 and the second tabular component
Second flow path 27 between 18 is with configuration on the second tabular component 18 and the third flow path 28 that contacts flowing water C with air
It is kept completely separate.
As a result, when third flow path 28 generates air suction vortex, air is able to suppress by the second tabular component 18 and is inhaled
Enter movement of the vortex to second flow path 27.Moreover, it is able to suppress contact of the flowing water C with air in second flow path 27, because
This is able to suppress the case where flowing water generates air suction vortex in second flow path 27.
It should be noted that the equipping position of the first tabular component 17 and the second tabular component 18 in Z-direction can be
It is suitably set in the range of the height of overflow weir 13, is not limited to Fig. 2 and the first tabular component 17 shown in Fig. 3 and the second plate
The equipping position of shape component 18.
The depth direction of first flow path 26 is separated by the inner bottom surface 11a and the first tabular component 17 of hole main body 11, and wide
Degree direction is separated by 2 side walls for being set to adjacent position in side wall 16-1~16-4.In the case where Fig. 1 and Fig. 3,
3 first flow path 26 are arranged in Y-direction.
The depth direction of second flow path 27 is separated by the first tabular component 17 and the second tabular component 18, and width direction
Separated by 2 side walls for being set to adjacent position in side wall 16-1~16-4.Second flow path 27 is across the first tabular component
17 and configure in first flow path 26.In the case where Fig. 1 and Fig. 3,3 second flow paths 27 are arranged in the Y direction.
The bottom of third flow path 28 is separated by the second tabular component 18, and width direction is by side wall 16-1~16-4
2 side walls for being set to adjacent position separate.Third flow path 28 is configured across the second tabular component 18 in second flow path 27
On.In third flow path 28, flowed in the water C of 13 overflow of overflow weir.In the case where Fig. 1 and Fig. 3,3 are arranged in the Y direction
Third flow path 28.Above-mentioned first flow path is to third flow path 26~28 along Z-direction laminated configuration.
Interconnecting part 31 is arranged in a manner of penetrating through the part opposed with each first flow path 26 in overflow weir 13.Interconnecting part 31
Flowing water C is set in first flow path 26 to be connected to downstream side region R22 from upstream side region R1.
The shape of interconnecting part 31 when from the flow direction of water C can be used such as polygon or round.Moreover,
The opening area of interconnecting part 31 is preferably flow the flow velocity of flowing water C in second flow path 27
The mode that the flow velocity of dynamic water C is equal with the flow velocity of the flowing water C in third flow path 28 determines.
By with above-mentioned interconnecting part 31, make in first flow path 26 flowing water C from overflow weir via interconnecting part 31
13 upstream side flows to downstream side, thus, it is possible to reduce in third flow path 28 flow of flowing water C in second flow path 27
The difference of the flow of middle flowing water C.Thereby, it is possible to inhibit with the stream of the flowing water C in second flow path 27 and third flow path 28
The difference of amount is the generation of the bias current of cause.That is, being able to suppress using above-mentioned bias current as the decline of the performance of the pump 15 of cause.
Water intaking hole 10 according to first embodiment, the air for being able to suppress the second flow path 27 configured with suction inlet 38 are inhaled
Enter the generation of vortex, and does not become the upper surface 17a and suction inlet of the first tabular component 17 of the bottom surface of second flow path 27
The distance J of 38 lower end changes and can reduce the cost in water intaking hole 10 from previous distance (defined distance).
In addition, the equipment (for example, firepower equipment or chemical device etc.) for having above-mentioned water intaking hole 10 can obtain and the
10 same effects are cheated in the water intaking of one embodiment.
Fig. 5 is the cross-sectional view of the major part in the water intaking hole of the variation of first embodiment of the invention.In Fig. 5,
For structure division identical with structural body shown in FIG. 1, same symbol is marked.
Referring to Fig. 5, the water intaking hole 40 of the variation of first embodiment is with making second flow path towards overflow weir 13
The mode that 27 depth deepens matches the upper surface 17a of the first tabular component 17 relative to the inner bottom surface 11a inclination of hole main body 11
It sets, in addition to this, is set as the water intaking with first embodiment and cheats 10 same structures.
The water intaking hole 40 of variation according to first embodiment, by the upper surface 17a phase for making the first tabular component 17
Inner bottom surface 11a for cheating main body 11 is arranged obliquely, so that water C is in second flow path 27 along the upper of the first tabular component 17
The mode of surface 17a flows, thus can by second flow path 27 flowing water C to towards the direction of suction inlet 38 guide.
(second embodiment)
Fig. 6 is the top view of the major part in the water intaking hole of second embodiment of the present invention.In Fig. 6, for the ease of
Illustrate and omit the diagram of the pump main body 35 (referring to Fig. 7) for constituting pump 15 and the second tabular component 18 (referring to Fig. 7).Moreover,
In Fig. 6, in order to make vortex in water inhibit the positional relationship of component 46 and suction line 37 and suction inlet 38 clear and schematic map
Show suction line 37 and suction inlet 38.In Fig. 6, for structure division identical with structural body shown in FIG. 1, same symbol is marked
Number.
Fig. 7 is the L1-L in water intaking hole shown in fig. 62The cross-sectional view in line direction.In Fig. 7, for shown in Fig. 2 and Fig. 6
The identical structure division of structural body, mark same symbol.Fig. 8 is the solid that vortex inhibits component in Fig. 6 and water shown in Fig. 7
Figure.In fig. 8, for structure division identical with Fig. 6 and structural body shown in Fig. 7, same symbol is marked.
The water intaking hole 45 of reference Fig. 6~Fig. 8, second embodiment are gone back in the structure in the water intaking hole 10 of first embodiment
Inhibit component 46 equipped with vortex in water, is constituted in the same manner as water intaking hole 10 in addition to this.
Vortex inhibits component 46 to be configured at around suction line 37 in second flow path 27 in water.Vortex inhibits component in water
46 have crosswise base plate 49 and the first column portion to third post portion 51~53.
Crosswise base plate 49 is the component of cross shape.Crosswise base plate 49 is configured at the upper of the first tabular component 17
Surface 17a.Crosswise base plate 49 has the outer surface 49a contacted with the upper surface 17a of the first tabular component 17.Crosswise bottom
The centrally located cross section in plate portion 49 is configured in the lower section of suction inlet 38.The crosswise base plate 49 of such structure is being inhaled
The generation being vortexed in the lower section lateral inhibition water of entrance 38.
First column portion 51 is set to the 1 of the downstream side configuration of the flowing in water C in 4 ends of crosswise base plate 49
A end.First column portion 51 extends along Z-direction, has the outer surface 51a opposed with the face 13a of overflow weir 13.Such structure
The generation that is vortexed in the downstream lateral inhibition water of suction inlet 38 of the first column portion 51.
Second column portion 52 be set to along Y-direction configuration crosswise base plate 49 2 ends in along Y-direction configuration
The end of one side.Second column portion 52 extends along Z-direction.
Third post portion 53 be set to along Y-direction configuration crosswise base plate 49 2 ends in along Y-direction configuration
The end of another party.Third post portion 53 extends along Z-direction.Third post portion 53 is in the Y direction with the side opposed with the second column portion 52
Formula configuration.The height of third post portion 53 is set as height identical with the second column portion 52.
The second above-mentioned column portion 52 and third post portion 53 inhibit the generation being vortexed in water in the Y-direction of suction inlet 38.
According to the water intaking of second embodiment hole 45, energy is configured around the suction inlet 38 being configured in second flow path 27
Vortex in the water for the generation being vortexed in the water in second flow path 27 is enough inhibited to inhibit component 46, thus, it is possible to inhibit to be vortexed in water
For the decline of the performance of the pump of cause.Moreover, the water intaking hole 45 of second embodiment can obtain taking with first embodiment
The same effect in puddle 10.
It should be noted that vortex inhibits component 46 in water in above-mentioned water as an example of the shape of vortex inhibition component 46
Shape be not limited to Fig. 6~shape shown in Fig. 8.For example, be vortexed in water the part being easy to produce in advance known to when, can
To be formed as shape as the generation for inhibiting to be vortexed in the water of the part.
Inhibit component 46 same with vortex in above-mentioned water in addition, water intaking hole 40 shown in Fig. 5 can be set to have
Vortex inhibits component in the water of function.
(third embodiment)
Fig. 9 is the cross-sectional view of the major part in the water intaking hole of third embodiment of the present invention.In Fig. 9, for Fig. 1
The identical structure division of~structural body shown in Fig. 4, marks same symbol.
Referring to Fig. 9, the length of the first tabular components 17 are shortened in the water intaking hole 60 of third embodiment, in the X direction and position
It is equipped with guiding elements 61 in the end of the first tabular component 17 of upstream side, is set as the water intaking with first embodiment in addition to this
Cheat 10 same structures.
Guiding elements 61 is the ladder formation component of L font, is that the depth for making the entrance side of second flow path 27 becomes
Component that is shallow and deepening the depth of second flow path 27 at the equipping position of the first tabular component 17.As a result, in guiding elements
61 and first form ladder between tabular component 17.
The water C for flowing into second flow path 27 is dynamic along the surface current for the guiding elements 61 being separated to second flow path 27, then,
It is flowed along the upper surface 17a of the first tabular component 17, to be supplied to suction inlet 38.It, can as the material of guiding elements 61
To use material for example same as the first tabular component 17.
According to the water intaking of third embodiment hole 60, by the way that with above-mentioned guiding elements 61, (ladder of L font, which is formed, to be used
Component), the water C being flowed into second flow path 27 can be guided to towards the direction of suction inlet 38 (direction F).That is, inhibiting the
The flowing of water C in two flow paths 27 become top to the case where, can efficiently draw water C from suction inlet 38.Moreover, above-mentioned
The water intaking hole 60 of third embodiment can obtain the water intaking with first embodiment and cheat 10 same effects.
It should be noted that in the third embodiment, enumerating keeps the first tabular component 17 seperated with guiding elements 61
It is illustrated for situation, but the first tabular component 17 can also be made to be integrated with guiding elements 61.
Figure 10 is the cross-sectional view of the major part in the water intaking hole of the variation of third embodiment of the present invention.In Figure 10
In, for structure division identical with structural body shown in Fig. 9, mark same symbol.
Referring to Fig.1 0, the water intaking hole 65 of the variation of third embodiment replaces the water intaking hole 60 for constituting third embodiments
Guiding elements 61 and be equipped with guiding elements 66, in addition to this with the water intaking of third embodiment hole 60 in the same manner as constitute.
Guiding elements 66 is set to the end in the X direction and being located at the first tabular component 17 of upstream side.
Guiding elements 66 is the ladder formation component of curved shape.Guiding elements 66 is set as that second flow path 27 can be made
Entrance side depth shallower and the depth of second flow path 27 can be made to deepen at the equipping position of the first tabular component 17
Shape.The depth of second flow path 27 gradually becomes with from the upstream side of guiding elements 66 towards the first tabular component 17 as a result,
It is deep.
The water C for flowing into second flow path 27 is dynamic along the surface current for the guiding elements 66 being separated to second flow path 27, then,
It is flowed along the upper surface 17a of the first tabular component 17, to be supplied to suction inlet 38.It, can as the material of guiding elements 66
To use material for example same as the first tabular component 17.
The variation of the third embodiment for the guiding elements 66 having a structure in which water intaking hole 65 can obtain with
60 same effects are cheated in the water intaking of previously described third embodiment.
(the 4th embodiment)
Figure 11 is the cross-sectional view of the major part in the water intaking hole of the 4th embodiment of the invention.In Figure 11, for
The identical structure division of structural body shown in FIG. 1 to FIG. 4 marks same symbol.
Referring to Fig.1 1, the water intaking hole 70 of the 4th embodiment is equipped with guidance structure in the lower surface 18b of the second tabular component 18
Part 71 is set as the water intaking with first embodiment in addition to this and cheats 10 same structures.
Guiding elements 71 is the component of the quadrangular shape extended along Y-direction.Guiding elements 71 is for will be in second
The moving direction of the water C of the upper flow on road 27 is guided into the direction towards the lower part of second flow path 27 (towards suction inlet 38
Direction) component.
It, can will be in second flow path by with above-mentioned guiding elements 71 according to the water intaking of the 4th embodiment hole 70
The moving direction of the water C of 27 upper flow is guided into the direction towards the lower part of second flow path 27.Moreover, above-mentioned the 4th is real
The water intaking for applying mode cheats the water intaking that 70 can obtain with first embodiment and cheats 10 same effects.
It should be noted that in the fourth embodiment, enumerating the first tabular component 17 feelings seperated with guiding elements 71
It is illustrated for condition, but the first tabular component 17 can also be made to be structure as a whole with guiding elements 71.
Figure 12 is the cross-sectional view of the major part in the water intaking hole of the variation of the 4th embodiment of the invention.In Figure 12
In, for structure division identical with structural body shown in FIG. 1 to FIG. 4, mark same symbol.
Referring to Fig.1 2, the water intaking hole 75 of the variation of the 4th embodiment replaces the water intaking hole 70 for constituting the 4th embodiments
Guiding elements 71 and be equipped with guiding elements 76, in addition to this with the water intaking of the 4th embodiment hole 70 in the same manner as constitute.
Guiding elements 76 has the flexure plane 76a for being configured at upstream side.Flexure plane 76a will be in the overhead stream of second flow path 27
The moving direction of dynamic water C is guided into the direction towards the lower part of second flow path 27.As the material of guiding elements 76, can make
With material for example identical with the second tabular component 18.
The water intaking hole 75 of the variation of 4th embodiment of such structure can be reduced and be guided by flexure plane 76a
The impact for the water C that component 76 collides.Moreover, the water intaking hole 75 of the variation of the 4th embodiment can obtain and the 4th embodiment party
70 same effects are cheated in the water intaking of formula.
More than, describe the preferred embodiment of the present invention in detail, but the present invention be not limited to it is above-mentioned specific
Embodiment is able to carry out various modifications and changes in the range of the purport of the invention recorded within the scope of the claims.
For example, in first to fourth embodiment, as rear wall an example and enumerate for overflow weir 13 and said
It is bright, but overflow weir 13 can also be replaced and use and the rear wall of the overflow of flowing water C in third flow path 28 is avoided (not scheme
Show).In this case, effect same as first to fourth embodiment can be obtained.
In addition, guiding elements 71 shown in Figure 11 or Figure 12 institute can be set in Fig. 9 and water intaking shown in Fig. 10 hole 60,65
The guiding elements 76 shown.Thereby, it is possible to by second flow path 27 flowing water C reliably draw to towards the direction of suction inlet 38
It leads.
Industrial availability
The present invention can be suitable for having hole main body and the water intaking for the pump that flowing water is drawn in the main body of hole
Hole and equipment.
Symbol description
10,40,45,60,65,70,75 water intaking hole
11 hole main bodys
11a inner bottom surface
11A base plate
11B, 11C sidewall portion
13 overflow weirs
The face 13a
15 pumps
16-1~16-4 side wall
17 first tabular components
The upper surface 17a, 18a, Ca
The lower surface 17b, 18b
18 second tabular components
18A through hole
26 first flow path
27 second flow paths
28 third flow paths
31 interconnecting parts
35 pump main bodys
37 suction lines
38 suction inlets
The lower end 38A
Vortex inhibits component in 46 water
49 crosswise base plates
The outer surface 49a, 51a
51 first column portions
52 second column portions
53 third post portions
61,66,71,76 guiding elements
76a flexure plane
B1, B2, E~direction G
C water
D diameter
I central axis
J, K distance
The upstream R1 side region
The downstream side region R2
Claims (9)
1. a kind of water intaking hole, has：
Main body is cheated, extends along prescribed direction, water is made to circulate from the upstream side toward the downstream side；
Rear wall is arranged in the hole main body along the width direction of the hole main body；
Pump, it includes the suction inlets for sucking the water, and have to be impregnated in and be located at the upper of the upstream side in the hole main body
Swim the suction line in side region flowing water；
First tabular component is prolonged with the state being impregnated in the water along from the rear wall towards the direction of the upstream side
Stretch, the lower section of the suction inlet be set, there is the upper surface opposed with the lower end of the suction inlet, and with the hole main body
First flow path is separated out between inner bottom surface；And
Second tabular component is prolonged with the state being impregnated in the water along from the rear wall towards the direction of the upstream side
It stretches, the top of the suction inlet is set, and is separated out second flow path between first tabular component,
There is the third flow path for the water flowing in the top of second tabular component,
The suction line is configured in a manner of penetrating through second tabular component.
2. water intaking hole according to claim 1, wherein
The rear wall is will to be separated into the overflow weir of the upstream side region and downstream side region in the hole main body, and this overflows
The height on stream weir is set as making to flow into the downstream side region in a part of overflow of the water of upstream side region flowing.
3. water intaking hole according to claim 2, wherein
The water intaking hole includes interconnecting part, which is arranged in the portion opposed with the first flow path in the overflow weir
Point, make the water flowed in the first flow path from the upstream side regional connectivity to the downstream side region.
4. water intaking hole described in any one of claim 1 to 3, wherein
First tabular component and the second tabular component are configured in the mode parallel with the hole inner bottom surface of main body.
5. water intaking hole described in any one of claim 1 to 3, wherein
Second tabular component is configured in the mode parallel with the hole inner bottom surface of main body,
First tabular component makes described in a manner of with the depth of the second flow path is deepened towards the rear wall
The upper surface of first tabular component is arranged obliquely relative to the inner bottom surface of the hole main body.
6. water intaking hole according to any one of claims 1 to 5, wherein
It is respectively set in a pair of of side positioned at width direction of first tabular component and the second tabular component to described
The side wall that the width direction of one flow path to third flow path is separated.
7. water intaking described according to claim 1~any one of 6 is cheated, wherein
It is configured in the water being able to suppress in the second flow path around the suction inlet being configured in the second flow path
Vortex inhibits component in the water of the generation of vortex.
8. water intaking hole according to any one of claims 1 to 7, wherein
First tabular component or second tabular component setting will the water that is flowed in the second flow path to
The guiding elements of the suction inlet guidance.
9. a kind of equipment comprising water intaking hole according to any one of claims 1 to 8.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016067124A JP6653204B2 (en) | 2016-03-30 | 2016-03-30 | Intake pits and plants |
| JP2016-067124 | 2016-03-30 | ||
| PCT/JP2017/000627 WO2017168934A1 (en) | 2016-03-30 | 2017-01-11 | Water intake pit and plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108884649A true CN108884649A (en) | 2018-11-23 |
| CN108884649B CN108884649B (en) | 2020-09-01 |
Family
ID=59963994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780020163.8A Active CN108884649B (en) | 2016-03-30 | 2017-01-11 | Water taking pit and equipment |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6653204B2 (en) |
| CN (1) | CN108884649B (en) |
| MY (1) | MY194508A (en) |
| WO (1) | WO2017168934A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57197308A (en) * | 1981-05-30 | 1982-12-03 | Mitsubishi Heavy Ind Ltd | Water intake device |
| JP2000096539A (en) * | 1998-09-22 | 2000-04-04 | Marushima Aqua System:Kk | Water intake device |
| CN1309245A (en) * | 2000-02-02 | 2001-08-22 | 株式会社荏原制作所 | Device for combating whirls in pump |
| CN103917715A (en) * | 2011-11-09 | 2014-07-09 | 兴亚株式会社 | Water intake device |
| CN203879813U (en) * | 2014-06-03 | 2014-10-15 | 齐宝明 | Device for eliminating air pump noise and outputting smooth and steady airflow |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63104700U (en) * | 1986-12-26 | 1988-07-06 | ||
| JPH0579000U (en) * | 1992-03-31 | 1993-10-26 | 株式会社クボタ | Vortex prevention device for pump water absorption tank |
| DE4340711A1 (en) * | 1993-11-30 | 1995-06-01 | Klein Schanzlin & Becker Ag | Device for preventing underwater vortices at pump inlets |
| JP4005299B2 (en) * | 2000-06-23 | 2007-11-07 | 株式会社荏原製作所 | Air intake vortex prevention device for pump |
-
2016
- 2016-03-30 JP JP2016067124A patent/JP6653204B2/en active Active
-
2017
- 2017-01-11 WO PCT/JP2017/000627 patent/WO2017168934A1/en active Application Filing
- 2017-01-11 MY MYPI2018703512A patent/MY194508A/en unknown
- 2017-01-11 CN CN201780020163.8A patent/CN108884649B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57197308A (en) * | 1981-05-30 | 1982-12-03 | Mitsubishi Heavy Ind Ltd | Water intake device |
| JP2000096539A (en) * | 1998-09-22 | 2000-04-04 | Marushima Aqua System:Kk | Water intake device |
| CN1309245A (en) * | 2000-02-02 | 2001-08-22 | 株式会社荏原制作所 | Device for combating whirls in pump |
| CN1210505C (en) * | 2000-02-02 | 2005-07-13 | 株式会社荏原制作所 | Device for combating whirls in pump |
| CN103917715A (en) * | 2011-11-09 | 2014-07-09 | 兴亚株式会社 | Water intake device |
| CN203879813U (en) * | 2014-06-03 | 2014-10-15 | 齐宝明 | Device for eliminating air pump noise and outputting smooth and steady airflow |
Also Published As
| Publication number | Publication date |
|---|---|
| MY194508A (en) | 2022-11-30 |
| WO2017168934A1 (en) | 2017-10-05 |
| JP2017179822A (en) | 2017-10-05 |
| JP6653204B2 (en) | 2020-02-26 |
| CN108884649B (en) | 2020-09-01 |
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Address after: Kanagawa Prefecture, Japan Patentee after: Mitsubishi Power Co., Ltd Address before: Kanagawa Prefecture, Japan Patentee before: MITSUBISHI HITACHI POWER SYSTEMS, Ltd. |