CN106120659B - Protective device for phreatic high canal for water conveyance bottom plate - Google Patents
Protective device for phreatic high canal for water conveyance bottom plate Download PDFInfo
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- CN106120659B CN106120659B CN201610677426.XA CN201610677426A CN106120659B CN 106120659 B CN106120659 B CN 106120659B CN 201610677426 A CN201610677426 A CN 201610677426A CN 106120659 B CN106120659 B CN 106120659B
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- water
- spool
- canal
- check valve
- protective device
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/02—Making or lining canals
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
Abstract
Protective device for phreatic high canal for water conveyance bottom plate, the protective device is fixedly installed on along the bottom of canal for water conveyance longitudinal direction slope surface, including shell, check valve and cover board, the cover board is fixed at the bottom of canal for water conveyance slope surface, permeable hole is provided on cover board, the shell is the shell of open at one end, and open end is fixed with cover board, and water storage cavity is formed between cover board and shell；Check valve, underground water single flow direction water storage cavity are installed in water storage cavity；The elevation of the protective device and the depth displacement of canal for water conveyance bottom plate are greater than zero.After the protective device is arranged in canal for water conveyance face toe, achievees the effect that be automatically closed when water delivery and do not increased head loss；When level of ground water is higher than channel water level, check valve is automatically opened, and has cut down the uplift pressure that phreatic high generates channel bottom plate.
Description
Technical field
It is a kind of for groundwater level region canal for water conveyance bottom plate the present invention relates to hydraulic and hydroelectric engineering technical field
Protective device.
Background technique
Canal for water conveyance in groundwater level region, often there is a phenomenon where breakages for underplate concrete after water delivery, former
Therefore first is that level of ground water is higher than the elevation of canal for water conveyance water level, (elevation refers to that certain point along plumb line direction arrives absolute datum
Distance claims absolute elevation, abbreviation elevation.Certain point assumes the distance of leveling datum along plumb line direction to certain, claims assumed height),
Canal bottom plate is in the floating support state of underground water, and self weight is irresistibly lauched uplift pressure and produces structure destruction.
Prior art measure, which has taken, adds reverse stop valve on channel bottom plate, can be higher by canal for water conveyance base plate vicinity
The underground water of water level introduces canal for water conveyance under its uplift pressure generated effect, (builds to cut down water-head bring uplift pressure
The infiltration in object and its ground is built, the sum of uplift pressure and the osmotic pressure in section are calculated certain level) to canal for water conveyance bottom plate
Floating support.But its cope level of the reverse stop valve due to being set to canal bottom is generally higher than canal for water conveyance floor elevation 3-5cm, changes
Become canal for water conveyance original design size and form, but safeguard procedures are improper in addition and daily maintenance not in time, often free
Siltation clogging, does not have due effect；The reverse stop valve for being higher by canal for water conveyance bottom plate simultaneously also increases channel hydraulic pipeline
When head loss (head loss：The loss of the water flow mechanical energy of unit mass liquid during the motion is known as head loss；
The reason of generating head loss has internal cause and two kinds of external cause, and the resistance of outer bound pair water flow is the main external cause for generating head loss,
The viscosity of liquid is the major endogeneous and basic reason for generating head loss), affect the conveyance power of water of channel.
How to be improved, innovated using the prior art, reaches more effectively protection groundwater level region canal for water conveyance
The safety and stability of bottom plate is contract access point of the invention.
Summary of the invention
To overcome problems of the prior art, the present invention provides one kind to be used for phreatic high canal for water conveyance bottom plate
Protective device, can protect groundwater level region canal for water conveyance bottom plate from uplift pressure destroy the phenomenon that, do not change defeated
Water channel road original design size and form do not increase canal silting and head loss, and peace tears easy to operate, easy access maintenance open, gram
The deficiencies in the prior art are taken.
The technical solution adopted for solving the technical problem of the present invention is：This kind is for phreatic high canal for water conveyance bottom plate
Protective device is fixedly installed on along the bottom of canal for water conveyance two sides longitudinal direction side slope, including shell, check valve, cover board and pre-buried vertical
Water-supply-pipe, the cover board is fixed at the shell open end of canal for water conveyance side slope bottom, is provided with permeable hole on cover board, described
Filter screen is installed, the filter screen is single hole installation or integral installation or grouping installation in permeable hole；The shell is one end
Open reserved shell, and open end is fixed with cover board, and water storage cavity is formed between cover board and shell；It is equipped in water storage cavity unidirectional
Valve, underground water flows into water storage cavity through check valve when uplift pressure is larger；The protective device does not change canal for water conveyance original design size
And form, the depth displacement control of shell bottom elevation and canal for water conveyance bottom plate is between 5cm~10cm.The pre-buried vertical water-supply-pipe
It is connected to underground water.
Further, the bottom of the check valve is fixed with the vertical screen pipe being connected to check valve bottom pyramidal mouth,
The pre-buried vertical water-supply-pipe of the vertical screen pipe and outer casing bottom connects, and filtering body is equipped in vertical screen pipe, described perpendicular
It is equipped with rubber fastening band to screen pipe and pre-buried vertical water-supply-pipe connection screw thread section, lower part linkage section is equipped with one layer of watertight rubber
Pad.
Further, the cover board inclination arrangement of the protective device and, the cover board concordant with canal for water conveyance side slope surface
Bottom row permeable hole answers vertical equity arrangement and bottom elevation is flushed with shell bottom elevation.
Further, the valve body of the check valve have conical opening, ball valve core, at the top of conical opening be equipped with limit net,
One layer of rubber pad is set on conical opening, and when closed check valve state, the limit net cope level and spool cope level difference are small
In or equal to spool radius, when spool closed state, spool falls into conical opening and is in close contact with the rubber pad on conical opening.
Further, the valve body of the check valve has conical opening, and ball valve core is equipped with limit plate at the top of conical opening,
Limit plate center is equipped with limit hole, and limit plate edge is water flowing net, and when closed check valve state, the limit plate is away from conical opening bottom
Its bottom elevation is less than or waits to conical opening bottom depth displacement when the diameter of distance and limit hole between elevation should be fully open with spool
In the radius of spool be control foundation, when spool closed state, spool fall into conical opening and with the rubber pad on its conical opening
It is in close contact.
Further, the valve body of the check valve has conical opening, and ball valve core, roof is equipped with limit inside the housing
Bar, the gag lever post bottom are equipped with horn-like spacing collar, the bottom face spool of the spacing collar, closed check valve state
When, the spacing collar elevation and spool cope level difference are less than the radius of spool, and when spool closed state, spool falls into conical opening
It is interior and on conical opening rubber pad be in close contact.
Further, the spool of the check valve is the hollow rubber sphere for the specific gravity that specific gravity is greater than water, has certain bullet
Property, equipped with clump weight, the density of clump weight is greater than the density of spool for the spool bottom, and clump weight is arranged in spool and its bottom end
The sum of self weight should be greater than the specific gravity 10%~20% of water.
It further, further include second one-way valve, the second one-way valve is connected to pre-buried vertical water-supply-pipe, and second is unidirectional
The top of spool is equipped with closed cavity, and the cavity of the second one-way valve and the check valve pass through the connection of cavity water outlet
Pipe is connected with pre-buried water delivery bend pipe, and one end of the communicating pipe is connected to cavity, and one end of the other end and pre-buried water delivery bend pipe connects
Logical, the other end of the pre-buried water delivery bend pipe is communicated with the connection of the vertical screen pipe of check valve.
Further, the needs that the protective device can run and overhaul according to canal for water conveyance carry out installation or removal dimension
Shield, it is simple and convenient for operation.
Further, the cover board, shell, conical opening, vertical screen pipe, pre-buried vertical water-supply-pipe, limit net, limit
Stainless alloy material or engineering plastics manufacture can be used in plate, gag lever post, communicating pipe and pre-buried water delivery bending component.
To sum up, the beneficial effect of above-mentioned technical proposal of the invention is：
1. check valve can be according to underground water after canal for water conveyance two sides face toe is symmetrical arranged the several groups protective device
The size timely adjustment for generating uplift pressure, can be automatically closed or open, to the uplift of channel bottom plate when having cut down phreatic high
Power.
2. the protective device is set to the bottom of two side slope of channel, slightly above channel floor elevation, cover plate of outer casing and canal
Road side slope is maintained in same slope surface, does not change the former design size and form of channel, is avoided to block water and be deposited with channel bottom
Phenomenon causes blocking and destruction to check valve, so that protective device is able to maintain normal operating conditions, while not increasing channel hydraulic pipeline
When head loss.
3. the protective device is mounted on inclined channel side slopes bottom easy to demolition, maintenance and routine maintenance.
4. the protective device utilizes tandem principle, two check valves are cascaded, guarantee of work rate is unquestionable.
Detailed description of the invention
Fig. 1 is the diagrammatic cross-section that the present invention is installed on canal for water conveyance slope surface；
Fig. 2 is the partial enlarged view of part A in one Fig. 1 of the embodiment of the present invention；
Fig. 3 is the partial enlarged view of part A in two Fig. 1 of the embodiment of the present invention；
Fig. 4 is the partial enlarged view of part A in three Fig. 1 of the embodiment of the present invention；
Fig. 5 is schematic diagram of the three-dimensional structure；
Fig. 6 is the first mounting means structural schematic diagram of filter screen in cover board of the present invention；
Fig. 7 is second of mounting means structural schematic diagram of filter screen in cover board of the present invention；
Fig. 8 is the structural schematic diagram of filter screen in second of mounting means of filter screen of the present invention；
Fig. 9 is the third mounting means structural schematic diagram of filter screen in cover board of the present invention；
Figure 10 is the structural schematic diagram of filter screen in the third mounting means of filter screen of the present invention；
Figure 11 is the partial enlarged view of part A in four Fig. 1 of the embodiment of the present invention；
Figure 12 is valve core structure schematic diagram of the present invention；
Figure 13 is filter structure schematic diagram of the present invention；
Figure 14 is second embodiment of the invention limit plate floor map.
In figure：
1 shell, 2 check valves, 21 spools, 22 conical openings, 221 rubber pads, 23 clump weights, 24 vertical screen pipes, 241 rubber
Waterstop, 242 rubber water-proof pads, 25 filtering bodies, the filtering of 251 coarse sand granules, the filtering of 252 level-one non-woven fabrics, 253 level-one polyphosphazene polymers
Close object filtering, the filtering of 254 second level non-woven fabrics, the filtering of 255 second level high molecular polymers, 26 limit nets, 27 limit plates, 271 limits
Hole, 272 water flowing nets, 28 gag lever posts, 281 spacing collars, 3 cover boards, 31 permeable holes, 32 filter screens, 4 water storage cavities, 5 canal for water conveyance, 51
Channel side slopes, 52 bottom plates, 6 hooks, 7 second one-way valves, 71 second one-way valve spools, 72 second one-way valve conical openings, 721 second
Check valve conical opening rubber pad, 73 second one-way valve clump weights, the vertical screen pipe of 74 second one-way valves, the filtering of 75 second one-way valves
Body, 8 communicating pipes, 9 pre-buried vertical water-supply-pipes, 10 cavitys, 11 pre-buried water delivery bend pipes.
Specific embodiment
It is described in detail below in conjunction with 1~14 pair of attached drawing feature and principle of the invention, illustrated embodiment is only used for solving
The present invention is released, is not limited the scope of protection of the present invention with this.
As shown in Figure 1, the protective device of invention design is fixedly installed on along 5 length direction channel two sides of canal for water conveyance
The bottom on slope 51,1 bottom elevation of protective device shell are slightly above 5 bottom plate of canal for water conveyance, 52 crest level, and because it is not disposed on water delivery
On 5 canal bottom plate 52 of channel, and the former design size of canal for water conveyance 5 and form are not changed, therefore the resistance during water delivery will not be generated
Water and siltation phenomenon, while the normal siltation in turn avoided after water delivery on 5 canal bottom plate 52 of canal for water conveyance fills the protection
The adverse effect and damage set, the protective device check valve 2 can be automatically closed in due course according to the actual situation when can reach water delivery
Or it opens, and do not increase the effect of head loss.Bottom symmetrical setting along 5 two sides longitudinal direction channel side slopes 51 of canal for water conveyance is several
Group can lay the protective device using different spacing according to local level of ground water hydrographic data throughout the year, if certain section of canal for water conveyance 5
Corresponding averagely underground water elevation throughout the year is higher, and several groups of protective devices can be arranged more, if certain section of canal for water conveyance 5 is corresponding throughout the year
Average underground water elevation is lower, several groups of protective devices can be arranged less, accomplish to make the best use of everything, and decreases in use bring not
Necessary installation and maintenance are time-consuming, are also convenient for later period maintenance and can reduce engineering cost.The bottom elevation of the protective device shell 1
Depth displacement H1 between 5 bottom plate of canal for water conveyance, 52 crest level is controlled in 5~10cm.
Embodiment one：As shown in Fig. 2, Fig. 5, Figure 12 and Figure 13, the protective device is by shell 1, check valve 2, cover board 3 and pre-
Bury the equal composition of vertical water-supply-pipe 9.The shell 1 is that open at one end is arranged in 5 two sides channel side slopes of canal for water conveyance 51 bottoms
Reserved cavity shell, open end can be fixedly connected with cover board 3 by the bolt of non-corrosive alloy material；The cover board
3 be square plate, is in tilted layout in 51 bottom of channel side slopes, open fixed with shell 1, forms water storage cavity between cover board 3 and shell 1
4, the size of water storage cavity 4 can be designed according to actual requirement.Check valve 2 is installed in water storage cavity 4, caused by underground water
When uplift pressure is larger, underground water unidirectionally flows through check valve 2 and enters water storage cavity 4.The pre-buried vertical water-supply-pipe 9 is arranged in shell
The built-in fitting of 1 bottom, pre-buried vertical water-supply-pipe 9 are connected to underground water, and inside upper section 5cm is equipped with standard thread, are convenient for
The installation of check valve 2.The check valve 2 is by ball valve core 21, conical opening 22, vertical screen pipe 24, filtering body 25 and limit net
26 compositions, are an integrated members.22 bottom of conical opening on the check valve 2 is fixed with vertical screen pipe 24, outside
Upper section 5cm is equipped with standard connection screw thread, sets one layer of rubber water-proof pad 242 on the outside of lower section, fills filtering body 25 inside it and (is detailed in
Figure 13), the avoidable underground water of the setting of filtering body 25 brings fine particle in water storage cavity 4 into, the holding for keeping check valve 2 lasting
Normal operating conditions；The vertical screen pipe 24 is inserted into that 1 bottom of protective device shell is reserved in advance to be connected to underground water
Pre-buried vertical water-supply-pipe 9, the rotation of the two top connect, and rubber fastening band 241 is arranged between the screw thread, to guarantee the two connection
Leakproofness prevents leak, and one layer of rubber water-proof pad 242, effect and 241 phase of rubber fastening band are set on the outside of vertical 24 lower section of screen pipe
Together, and underground water can also be prevented to flow between vertical 24 outside of screen pipe and the gap of pre-buried 9 interior side contacts of vertical water-supply-pipe
In water storage cavity 4, while the stability of the two connection is improved again.The caliber numerical value of pre-buried vertical water-supply-pipe 9 can be set according to channel
Meter scale, water level and relevant parameter and local averagely level of ground water hydrographic data throughout the year determine, vertical 24 outer diameter of screen pipe
Less than, through 2mm, length is controlled in 20cm or so in pre-buried vertical water-supply-pipe 9.
The valve body of the check valve 2 is equipped with conical opening 22, and ball valve core 21 is fixedly connected with limit net at the top of conical opening 22
26, limit net 26 can control the Lift of spool 21, and structure should ensure that the unimpeded of water flow, when 2 closed state of check valve,
The difference of limit 26 cope level of net and 21 cope level of spool should be slightly less than the radius of spool 21.22 taper of conical opening
Section inside border arranges that a layer thickness is less than the rubber pad 221 of 5mm, to improve leakproofness when check valve 2 is closed.The taper
Mouth 22, vertical screen pipe 24, limit net 26, pre-buried vertical water-supply-pipe 9 can be used engineering plastics and be made, and filtering body 25 is from bottom to top
Filtering material is：Coarse sand granule filtering 251, level-one non-woven fabrics filtering 252, level-one high molecular polymer filtering 253, second level non-woven fabrics
Filtering 254, second level high molecular polymer filtering 255.21 bottom end 5cm of spool when the top surface of filtering body 25 should be apart from closed state
Within.
It is provided with permeable hole 31 on cover board 3, filter screen 32 is installed, when channel hydraulic pipeline in permeable hole 31, it is assumed that is not having
When having under uplift pressure effect, water flows through the permeable hole 31 on cover board 3 and is full of water storage cavity 4；The spool 21 of check valve 2 can be by it certainly
The buoyancy of water in water storage cavity 4 is overcome to be in close state again, the spool 21 of check valve 2 is the specific gravity that specific gravity is greater than water with one
Determine the hollow rubber sphere of wall thickness, material there should be certain elasticity, reach check valve 2 and be in spool 21 and taper when closing
The contact of rubber pad 221 is answered close, waterproof in mouth 22, and playing the role of being automatically closed in channel hydraulic pipeline prevents leakage.Such as Fig. 2
Shown, clump weight 23 (being detailed in Figure 12) is arranged in a kind of preferred design, the bottom end inside spool 21, the density of clump weight 23
Should be greater than 21 density of spool, the sum of the self weight of spool 21 and its bottom end setting clump weight 23 should be greater than the specific gravity 10% of water~
20%, it can guarantee water storage cavity 4 is anhydrous or the steadily of centre of gravity of water-filled state bottom spool 21, when check valve 2 is closed in this way
It can vertically fall into conical opening 22 and be in close contact with rubber pad 221 naturally, so that check valve 2 be made to be in stable closed state.
Through equal in 22 bottom inner diameter of conical opening and vertical screen pipe 24, upper part circle segments diameter control in 21 diameter of spool 1.7
Times~2 times within the scope of.
After channel hydraulic pipeline operating condition or water delivery, when level of ground water is higher than water level in channel or higher than canal for water conveyance bottom
When 52 crest level of plate, underground water enters in water storage cavity 4 by pre-buried vertical water-supply-pipe 9, check valve 2 at this time.Detailed process is, if
When level of ground water is higher than water level in channel, the uplift pressure that water-head generates passes through pre-buried vertical water-supply-pipe 9, vertical mistake by underground water
25 jacking ball valve core 21 of filtering body and clump weight 23 in chimney filter 24.When underground water uplift pressure is greater than spool 21 and clump weight 23
When the sum of self weight, underground water jacking spool 21 moves up automatically is detached from 22 bottom rubber pad 221 of conical opening, and check valve 2 is at this time
Opening state, underground water enter water storage cavity 4 through check valve 2, are then flowed into channel by the permeable hole 31 on cover board 3, thus
The uplift pressure for reducing underground water jacking channel bottom plate 52, protects the safety and stability of channel bottom plate 52.
Spool 21 can accurately restore closed state when to close check valve 2, should control spool 21 when check valve 2 is opened
Floating height, this requires its Bottom Altitude is still in cone when check valve 2 is fully open under the action of underground water uplift pressure
In 22 upper circular segment limit of shape mouth.The Lift of the controllable spool 21 of setting of net 26 is limited, limit net 26 uses non-corrosive
Alloy material bolt is fixedly connected on the top of 22 upper circular section of conical opening.Net 26 is limited when check valve 2 is in close state
The height difference of crest level and 21 crest level of ball valve core should be less than or equal to spool 21 radius, check valve 2 can in this way opened
When 21 bottom of spool be still in the control range of 22 upper circular section of conical opening, enable in time, accurately to playback when its closing, protect
Demonstrate,prove the accurate and timely of 2 open and close of check valve.Engineering plastics or the production of rustless alloy material can be used in limit net 26.
Embodiment two：As shown in Fig. 3, Figure 14, what is different from the first embodiment is that the valve body of the check valve 2 has taper
Mouth 22, spool 21, vertical screen pipe 24, are fixedly connected on 22 upper circular section top of conical opening with non-corrosive alloy material bolt
Limit plate 27,27 center of limit plate are equipped with limit hole 271, and periphery is water flowing net 272 (as shown in figure 14), and check valve 2 closes shape
When state, when diameter of the limit plate 27 away from distance and limit hole 271 between the elevation of conical opening bottom should be fully open with spool 21
Its Bottom Altitude is less than or equal to the radius of spool 21 to 22 bottom height difference of conical opening for control foundation.The setting of limit plate 27 with
The setting effect for limiting net 26 is identical, and details are not described herein.Its specific implementation process is, after check valve 2 fully opens, spool
21 float, and are limited by limit hole 271 and stop continuing to float, and the water flowing net 272 that water flows through 27 periphery of limit plate flows into storage
Water cavity 4,21 bottom of spool still controls the following certain distance at the top of 22 upper circular section of conical opening at this time, can make so unidirectional
21 bottom of spool is still in the control range of 22 upper circular section of conical opening when valve 2 is fully open, when enabling its closing in time,
Accurate playback, guarantees the accurate and timely of 2 open and close of check valve.Engineering plastics or rustless conjunction can be used in the limit plate 27
Golden material is made.
Embodiment three：As shown in figure 4, the valve body of the check valve 2 has unlike embodiment one and embodiment two
Conical opening 22, spool 21, vertical screen pipe 24, the gag lever post 28 torn open, the limit can be pacified by being equipped in 1 inner top wall of shell
28 bottom of bar is equipped with horn-like spacing collar 281, the bottom face spool 21 of the spacing collar 281,2 closed state of check valve
When, the difference of 281 elevation of spacing collar and 21 cope level of spool is less than or equal to the radius of spool 21.Gag lever post 28 and limit
The setting of circle 281 is identical as the limit setting effect of net 26, and details are not described herein.Its specific implementation process is, when check valve 2 is complete
After full opening, spool 21 floats, and is limited by spacing collar 281 and stops continuing to float, 21 bottom of spool still controls at this time
Following certain distance at the top of 22 upper circular section of conical opening, 21 bottom of spool is still in cone when check valve 2 can in this way opened
In the control range of 22 upper circular section of shape mouth, enable in time, accurately to playback when its closing, guarantees the accurate of 2 open and close of check valve
With it is timely.Engineering plastics can be used in the gag lever post 28 and spacing collar 281 or rustless alloy material is made.
To improve guarantee of work rate, it is contemplated that two concatenated check valves are arranged in protective device of the present invention, see example IV,
As shown in figure 11, protective device mainly includes：Shell 1, check valve 2, second one-way valve 7, communicating pipe 8, pre-buried vertical water-supply-pipe
9, cavity 10, pre-buried water delivery bend pipe 11, cover board 3 etc. form.Second one-way valve 7 is by second one-way valve spool 71, second one-way valve
Conical opening 72, second one-way valve conical opening rubber pad 721, second one-way valve clump weight 73, the vertical screen pipe 74 of second one-way valve,
Second one-way valve filtering body 75, communicating pipe 8 and cavity 10 form.Vertical 74 structure of water-supply-pipe of the second one-way valve and check valve
The structure and size of 2 vertical screen pipe 24 are all the same, and it is corresponding pre- that the vertical water-supply-pipe 74 of second one-way valve is inserted into 1 lower section of shell
It buries vertical water-supply-pipe 9 and is threadedly coupled the connection realized with underground water, the water storage cavity that the second one-way valve 7 is arranged is a closing chamber
Body 10,10 upper outlet of cavity are equipped with communicating pipe 8, and cavity 10 passes through pre-buried water delivery bend pipe 11 by communicating pipe 8 and check valve 2
It is connected, the vertical screen pipe 24 of check valve 2 is inserted into pre-buried water delivery bend pipe 11 and is threadedly coupled, by second one-way valve 7 and check valve 2
It is together in series.When level of ground water is higher than water level in channel, generated uplift pressure is greater than second one-way valve spool 71 and the second list
When to the sum of 73 weight of valve clump weight, underground water is by pre-buried vertical water-supply-pipe 9, through the vertical screen pipe 74 of second one-way valve, gram
The self weight of second one-way valve spool 71 and second one-way valve clump weight 73 is taken, at this time underground water jacking under the action of uplift pressure
Two inner elements of check valve 71 move up the second one-way valve cone tank rubber pad 721 for being detached from 72 bottom of second one-way valve conical opening automatically,
Second one-way valve 7 is opened, and underground water flows into the cavity 10 of second one-way valve 7, and after cavity 10 is full of, underground water is through 10 top of cavity
Enter the communicating pipe 8 of outlet, pre-buried water delivery bend pipe 11, vertical screen pipe 24 check valve 2, the course of work of check valve 2 with the
It has been illustrated in one embodiment, underground water enters water storage cavity 4 through check valve 2, water storage cavity 4 is full of, then by saturating on cover board 3
Water hole 31 flows into channel, to reduce the uplift pressure of underground water jacking channel bottom plate 52, protects the peace of channel bottom plate 52
It is complete to stablize.Second one-way valve 7 can control 71 Lift of second one-way valve spool using the ceiling height of cavity 10, and principle is same
Before repeat no more.Second one-way valve 7 is identical as check valve 2 except the outer other structures of cavity 10 and size, two check valves series connection
Afterwards, each check valve underground water uplift pressure obtained is equal, even if a check valve breaks down, another check valve
It can also guarantee to work normally, advantage is apparent.
Permeable hole 31 is set on the cover board 3, filter screen 32 is set in permeable hole 31, avoids in channel sundries or tiny
Grain, which enters, blocks check valve 2 inside water storage cavity 4, guarantee the normal work of check valve 2 and second one-way valve 7.3 bottom row of cover board
Permeable hole 31 should be horizontally disposed with and bottom elevation is flushed with 1 bottom elevation of shell, to empty the ponding in shell 1 when needed.
Cover board 3 is it is contemplated that use non-corrosive alloy material, engineering plastics or water penetration concrete material.
The filter screen 32 is single hole installation or integral installation or grouping installation.It is illustrated in figure 6 the first of filter screen 32
Kind of mounting means, i.e., be mounted on filter screen 32 in each permeable hole 31, and 31 filtering net 32 of each permeable hole be it is independent,
This kind installation should ensure that installation accuracy.It is as shown in Figure 7 and Figure 8 second of mounting means of filter screen 32, i.e., on entire cover board 3
Filter screen 32 in all permeable holes 31 is fixedly connected with together, and the corresponding permeable hole 31 installed with it of each filter screen 32
Position is provided with a hook 6 on entire filter screen 32, conveniently fetches.This kind of mode is easily installed, and improves installation effectiveness.
It is as shown in Figure 9 and Figure 10 the third mounting means of filter screen 32, i.e., it is one group that several adjacent filter screens 32, which divide, and every
Corresponding 31 position of permeable hole installed with it of a filter screen 32, every group of filter screen 32 is fixed as one, on every group of filter screen 32
It is provided with a hook 6, is conveniently fetched.This kind of mounting means had both improved installation effectiveness and has also ensured installation accuracy, after being convenient for
Phase maintenance.
In first, second, and third embodiment, as Fig. 2, Fig. 3 and Fig. 4 take cover board 3 when protective device needs to overhaul
It can be taken off check valve 2 after lower to be overhauled.When installation, first embodiment and second embodiment are by the vertical screen pipe of check valve 2
The pre-buried vertical water-supply-pipe 9 that 24 insertion 1 bottoms of shell are reserved is threadedly coupled rotation and tightens, then cover board 3 and the outer opening of shell 1 are used
Non-corrosive alloy material bolt, which is fixedly connected, can be completed installation, convenient and efficient, easily operated；3rd embodiment is that first installation is single
To valve 2, then gag lever post 28 is installed, cover board 3 is finally installed.Cover board 3 should ensure that after installation is complete to be maintained at channel side slopes 51
In the plane of the same gradient, do not change the former design size and form of channel, avoids generating and block water and phenomenon of depositing.In shell 1
The height of cavity should meet the requirement that can smoothly install check valve 2, and vertical screen pipe 24 should be made smoothly to be inserted into pre-buried vertical water delivery
It is advisable in pipe 9.
In fourth embodiment after two check valves are connected, as shown in figure 11, when maintenance, the sequence of disassembly：Cover board 3 is taken
Under, take out check valve 2, remove be connected to the outlet of 7 cavity 10 of second one-way valve and communicating pipe 8 of pre-buried 11 one end of water delivery bend pipe,
Second one-way valve 7 is removed into completion again and removes work, is overhauled or is safeguarded according to actual needs.When installation, second is installed first
Then check valve 7 is installed and connected in the communicating pipe 8 of 7 cavity 10 of second one-way valve outlet and pre-buried 11 one end of water delivery bend pipe, installation
Check valve 2 and cover board 3.Specific implementation is：It is pre-buried vertical by being reserved below the vertical insertion of screen pipe 74 shell 1 of second one-way valve
Water-supply-pipe 9, rotation screw thread reinforcing is tightened, and 10 upper outlet of cavity of second one-way valve 7 is corresponding with check valve 2 with communicating pipe 8
Then reserved pre-buried 11 one end of water delivery bend pipe connection is reserved 24 side of being inserted under of the vertical screen pipe correspondence of check valve 2
Pre-buried 11 other end of water delivery bend pipe rotation screw thread reinforcing is tightened, and installment work can be completed after installing cover board 3, convenient and efficient, easily
In operation.
Above-described embodiment is only the description that carries out to the preferred embodiment of the present invention, not to the scope of the present invention into
Row limits, without departing from the spirit of the design of the present invention, relevant technical staff in the field to various modifications of the invention and
It improves, should all expand in protection scope determined by claims of the present invention.
Claims (7)
1. being used for the protective device of phreatic high canal for water conveyance bottom plate, it is characterised in that：The protective device is fixedly installed on
Along the bottom of canal for water conveyance two sides longitudinal direction side slope, including shell, check valve, cover board and pre-buried vertical water-supply-pipe, the cover board is solid
The shell open end of canal for water conveyance side slope bottom is set calmly, is provided with permeable hole on cover board, was equipped in the permeable hole
Strainer, the filter screen are single hole installation or integral installation or grouping installation；The shell is the reserved shell of open at one end, and
Open end is fixed with cover board, and water storage cavity is formed between cover board and shell；Check valve is installed in water storage cavity, when uplift pressure is larger
It is lauched and flows into water storage cavity through check valve；The protective device does not change canal for water conveyance original design size and form, shell bottom elevation
It is controlled between 5cm~10cm with the depth displacement of canal for water conveyance bottom plate, the pre-buried vertical water-supply-pipe is connected to underground water；It is described
The bottom of check valve is fixed with the vertical screen pipe being connected to check valve bottom pyramidal mouth, the vertical screen pipe and shell bottom
The pre-buried vertical water-supply-pipe connection in portion, is equipped with filtering body, the vertical screen pipe and pre-buried vertical water delivery in vertical screen pipe
Pipe connection screw thread section is equipped with rubber fastening band, and lower part linkage section is equipped with one layer of watertight rubber pad；The cover board of the protective device inclines
Tiltedly arrangement and it is concordant with canal for water conveyance side slope surface, the cover board bottom row permeable hole answer vertical equity arrange and bottom elevation with
Shell bottom elevation flushes.
2. being used for the protective device of phreatic high canal for water conveyance bottom plate according to claim 1, it is characterised in that：The list
A conical opening is had to the valve body of valve, ball valve core is equipped with limit net at the top of the conical opening, one layer of rubber pad is arranged on conical opening,
When closed check valve state, the radius of the limit net cope level and spool cope level difference less than or equal to spool, spool
When closed state, spool falls into conical opening and is in close contact with the rubber pad on conical opening.
3. being used for the protective device of phreatic high canal for water conveyance bottom plate according to claim 1, it is characterised in that：The list
Conical opening is had to the valve body of valve, ball valve core is equipped with limit plate at the top of conical opening, and limit plate center is equipped with limit hole, limit
Position edges of boards edge is water flowing net, and when closed check valve state, the limit plate is away from the distance and limit hole between the elevation of conical opening bottom
Diameter should with spool when fully open its bottom elevation to conical opening bottom depth displacement be less than or equal to spool radius be control foundation,
When spool closed state, spool falls into conical opening and is in close contact with the rubber pad on its conical opening.
4. being used for the protective device of phreatic high canal for water conveyance bottom plate according to claim 1, it is characterised in that：The list
Conical opening is had to the valve body of valve, ball valve core, roof is equipped with gag lever post inside the housing, and the gag lever post bottom is equipped with loudspeaker
The spacing collar of shape, the bottom face spool of the spacing collar, when closed check valve state, the spacing collar elevation and spool top
Portion's depth displacement is less than or equal to the radius of spool, when spool closed state, spool fall into conical opening and with the rubber on conical opening
Rubber mat is in close contact.
5. being used for the protective device of phreatic high canal for water conveyance bottom plate according to claim 1, it is characterised in that：The list
It is the hollow rubber sphere for the specific gravity that specific gravity is greater than water to the spool of valve, there is certain elasticity, the spool bottom is equipped with counterweight
Block, the density of clump weight are greater than the density of spool, and the sum of the self weight of spool and its bottom end setting clump weight should be greater than the specific gravity of water
10%~20%.
6. being used for the protective device of phreatic high canal for water conveyance bottom plate according to claim 1, it is characterised in that：Further include
Second one-way valve, the second one-way valve are connected to pre-buried vertical water-supply-pipe, and the top of second one-way valve core is equipped with closed chamber
Body, the cavity of the second one-way valve connecting communicating pipe and pre-buried water delivery bend pipe by cavity water outlet with the check valve,
One end of the communicating pipe is connected to cavity, and the other end is connected to one end of pre-buried water delivery bend pipe, the pre-buried water delivery bend pipe
The other end is communicated with the connection of the vertical screen pipe of check valve.
7. being used for the protective device of phreatic high canal for water conveyance bottom plate according to claim 1, it is characterised in that：According to defeated
Water canal's moving and the needs of maintenance carry out installation or removal maintenance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610677426.XA CN106120659B (en) | 2016-08-17 | 2016-08-17 | Protective device for phreatic high canal for water conveyance bottom plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610677426.XA CN106120659B (en) | 2016-08-17 | 2016-08-17 | Protective device for phreatic high canal for water conveyance bottom plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106120659A CN106120659A (en) | 2016-11-16 |
| CN106120659B true CN106120659B (en) | 2018-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610677426.XA Active CN106120659B (en) | 2016-08-17 | 2016-08-17 | Protective device for phreatic high canal for water conveyance bottom plate |
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| Country | Link |
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| CN (1) | CN106120659B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113932491A (en) * | 2021-09-19 | 2022-01-14 | 青岛海尔空调器有限总公司 | One-way valve, heat exchanger, refrigeration cycle system and air conditioner |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2806563Y (en) * | 2005-06-16 | 2006-08-16 | 江崇安 | Non-return drainage device for channel drainage system |
| CN200964580Y (en) * | 2006-10-31 | 2007-10-24 | 韩凤来 | Plugging-proof checking type water drainer |
| CN201041248Y (en) * | 2007-04-25 | 2008-03-26 | 陶柏林 | Seepage proof check water-discharging valve for water conservancy trench |
| CN201715044U (en) * | 2010-07-19 | 2011-01-19 | 楚凤池 | Siltation-preventing non-return drainer |
| KR101059553B1 (en) * | 2011-02-07 | 2011-08-26 | 범한종합건설 (주) | Apparatus for closing water |
| CN205934858U (en) * | 2016-08-17 | 2017-02-08 | 山东省水利科学研究院 | Protection device for be used for high ground water level water delivery channel bottom plate |
-
2016
- 2016-08-17 CN CN201610677426.XA patent/CN106120659B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2806563Y (en) * | 2005-06-16 | 2006-08-16 | 江崇安 | Non-return drainage device for channel drainage system |
| CN200964580Y (en) * | 2006-10-31 | 2007-10-24 | 韩凤来 | Plugging-proof checking type water drainer |
| CN201041248Y (en) * | 2007-04-25 | 2008-03-26 | 陶柏林 | Seepage proof check water-discharging valve for water conservancy trench |
| CN201715044U (en) * | 2010-07-19 | 2011-01-19 | 楚凤池 | Siltation-preventing non-return drainer |
| KR101059553B1 (en) * | 2011-02-07 | 2011-08-26 | 범한종합건설 (주) | Apparatus for closing water |
| CN205934858U (en) * | 2016-08-17 | 2017-02-08 | 山东省水利科学研究院 | Protection device for be used for high ground water level water delivery channel bottom plate |
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| Publication number | Publication date |
|---|---|
| CN106120659A (en) | 2016-11-16 |
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