CN208777269U

CN208777269U - A kind of quarrel water outlet convenient for metering is the channel structure of steady flow

Info

Publication number: CN208777269U
Application number: CN201821109147.4U
Authority: CN
Inventors: 卢有伸
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-07-13
Filing date: 2018-07-13
Publication date: 2019-04-23
Anticipated expiration: 2028-07-13

Abstract

The utility model relates to the channel structures that a kind of quarrel water outlet convenient for metering is steady flow, including branch canal (2), lateral canal (3), quarrel gate (4), sluice gate (5) are blocked, cuing scale corresponding with the overflow canal (6) that branch canal (2) is parallel and the aperture-water flow being located at quarrel gate (4)；Overflow canal (6) water inlet and water outlet are connected with branch canal, and the two, which is located at, blocks sluice gate (5) upstream and downstream, and overflow canal (6) water inlet is equipped with overflow weir (7) and scouring sluice (8), are higher by branch canal ordinary water level a small distance at the top of overflow weir (7).The application of the utility model can guarantee that the water outlet at quarrel is steady flow in a certain range that higher level's canal capacity changes, and then it ensure that the stability of water supply, it improves the accuracy of irrigation water metering while being convenient for measuring, finally improve the service quality of water-supplying unit, improve being tested with water body for peasant household.

Description

A kind of quarrel water outlet convenient for metering is the channel structure of steady flow

Technical field

The utility model relates to pump up water for irrigation technical field more particularly to a kind of to go out convenient for the quarrel of metering in hydraulic engineering Water is the channel structure of steady flow.

Background technique

It pumping up water for irrigation in industry, canalization is made of a series of Open Channel sections and pumping plant, with reference to Fig. 1, wherein arrow Indicate water (flow) direction, Open Channel section is generally included from the trunk canal of river diversion 1, from a plurality of branch canal 2 of 1 diversion of trunk canal and from branch The a plurality of lateral canal 3 of 2 diversion of canal；The position that lateral canal 3 is connect with branch canal 2 is known as quarrel, is equipped with quarrel gate 4 at quarrel, on branch canal 2 The downstream position of quarrel is equipped with and blocks sluice gate 5.Water is supplied peasant household irrigated farmland by lateral canal 3, usually according to some scheduled water supply Flow and water consumption and corresponding water rate are settled accounts using the time.But during actually supplying water, often occur practical The case where water supply flow and predetermined water supply flow are not inconsistent, causes irrigation water measurement error big, water supply is given short weight, and peasant spends injustice Money in vain reduces peasant household and is tested with water body, generates and use water contradiction.

The operation control of channel refers to the equilibrium of supply and demand of entire ditch water flow amount while guaranteeing the stability to supply water. Traditional progress control method is using manual control on the spot, and in the actual operation process, the water supply that regulation is formed every time is steady It is qualitative be it is extremely fragile because the flow at quarrel influenced by higher level's ditch water flow amount liquid level it is very big.It is raised with multistage For water is irrigated, pumping plant is increased or shuts down a water pump assembly, and the trunk canal depth of water will change, to influence opening quarrel Water flow.In this case, in order to make the water flow at quarrel be restored to predetermined value, (this numerical value is for settling accounts Water rate, so the more stable it the better), need watermaster to adjust 4 aperture of quarrel gate or timely by pumping plant dispatcher in time Allotment, and since the water yield of pumping plant is stepping, discontinuous (adds water pump assembly to rise one grade, the water pump assembly drop that subtracts one One grade), a water pump assembly will be increased by leading to pumping plant for a moment, a water pump assembly be shut down again for a moment, by this frequent Startup-shutdown is just able to achieve the stability of water supply.Obviously, this control mode it is difficult to ensure that supply water stability, often such that irrigate Water metering error is big, causes to supply water and give short weight.

Utility model content

The technical problem to be solved by the utility model is to provide the canals that a kind of quarrel water outlet convenient for metering is steady flow Road structure improves the accuracy of irrigation water metering to reach the stability for guaranteeing to supply water, and then improves what peasant household was tested with water body Purpose.

To solve the above problems, a kind of quarrel water outlet convenient for metering described in the utility model is the channel knot of steady flow Structure, including branch canal, lateral canal, the quarrel gate being located at quarrel, be located at the quarrel downstream on the branch canal block sluice gate, It is characterized in that:

The channel structure further includes being located at the quarrel opposite and the parallel overflow canal of the branch canal and being located at described Aperture-water flow at quarrel gate corresponds to cuing scale；

The water inlet and water outlet of the overflow canal are connected with the branch canal, and water inlet blocks sluice gate positioned at described Upstream, water outlet block sluice gate (5) downstream described in being located at, and the overflow canal water inlet is equipped with overflow weir and scouring sluice, described Described branch canal ordinary water level a small distance is higher by the top of overflow weir.

Preferably, there is equally distributed semi-open slot at the top of the overflow weir.

Preferably, semi-open slot front end has elevated flashboard at the top of the overflow weir.

Preferably, maintain an equal level at the top of the overflow weir with the branch canal peak level.

Compared with the prior art, the utility model has the following advantages:

1, in the utility model channel structure, an overflow canal is added beside branch canal, when quarrel needs work, depending on feelings Condition will block sluice gate and close to certain aperture, compare aperture-water flow and correspond to cuing scale, adjust quarrel lock according to predetermined water supply flow To corresponding aperture, the water for blocking sluice gate upstream branch canal in this way will be stopped up high and flows into overflow canal door.In this process, due to overflow The overflow effect on weir 7 along with blocks sluice gate 5, quarrel gate 4 is in opening steady state so that water flow at quarrel in branch canal 2 In water of constant depth, water pressure invariableness state, in this way when higher level's canal capacity increases and decreases in a certain range, at the channel quarrel The water surface will not be raised or lowered obviously, guaranteed that the water outlet at quarrel as steady flow, and then ensure that the stability of water supply using this, mentioned The high accuracy of irrigation water metering, finally improves the service quality of water-supplying unit, improves being tested with water body for peasant household.This Outside, the structure of the utility model channel structure is simple and convenient to operate and is that disposable input cost is low.

2, when needing to calculate water consumption in real life, only according to the corresponding water flow of quarrel gatage and water need to be used Time duration can calculate water consumption, convenient and efficient.

Detailed description of the invention

Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing.

Fig. 1 is structural schematic diagram in the prior art.

Fig. 2 is structural schematic diagram provided by the embodiment of the utility model.

Fig. 3 is a kind of A-A ' structural schematic diagram provided by the embodiment of the utility model.

Fig. 4 is another kind A-A ' structural schematic diagram provided by the embodiment of the utility model.

Fig. 5 is another A-A ' structural schematic diagram provided by the embodiment of the utility model.

In figure: 1-trunk canal, 2-branch canal, 3-lateral canals, 4-quarrel gates, 5-block sluice gate, and 6-overflow canals, 7-overflow Flow weir, 8-scouring sluices, 9-semi-open slots, 10-elevated flashboards.

Specific embodiment

With reference to Fig. 1 ~ Fig. 5, the utility model embodiment provides the canal that a kind of quarrel water outlet convenient for metering is steady flow Road structure, including branch canal 2, lateral canal 3, the quarrel gate 4 being located at quarrel, be located at quarrel downstream on branch canal 2 block sluice gate 5, Be located at quarrel opposite, be also referred to as with the parallel overflow canal 6(of branch canal 2 bypass canal) and be located at aperture-water flow at quarrel gate 4 Corresponding cuing scale.

The water inlet and water outlet of overflow canal 6 are connected with branch canal 2, and water inlet be located at block 5 upstream of sluice gate, water outlet Mouth, which is located at, blocks 5 downstream of sluice gate, and 6 water inlet of overflow canal is equipped with overflow weir 7 and scouring sluice 8, and scouring sluice 8 is located on overflow weir 7 Trip can also play the work load that shunting function mitigates overflow weir 7 for rushing the silt deposited in overflowing stream canal 6.Overflow canal 6 inlet are separated and are contacted with 2 channel of branch canal by overflow weir 7.

2 ordinary water level a small distance of branch canal is higher by the top of overflow weir 7, this distance is higher, and depth rise is bigger, confrontation branch The ability of adverse effect caused by 2 changes in flow rate of canal is stronger, in practical applications, this distance can according to channel structure and permit Perhaps head loss determines, such as 8 ~ 12cm, and for another example 7 top of overflow weir maintains an equal level with branch canal 2 peak level.Overflow canal 6 goes out Mouth of a river upstream is waterwall, and outlet height, which is provided with, smoothly flows back to branch canal 2 conducive to water in overflow canal 6；For entire overflow The parameters such as length, the height of canal 6 are designed according to excess flow size and 2 ordinary water level of branch canal.

Further, it can as in Figure 3 be plane at the top of overflow weir 7, can also have as in Figure 4 and uniformly divide The semi-open slot 9 of cloth, difference is, the overflow weir 7 of axial length same for same apical side height, the overflow capability of the latter compared with By force, that is to say, that if overflow it is complete as much to overflow water, the latter's water surface stops up high level and is less than the former.It is possible to further overflow It flows 7 top semi-open slot of weir, 9 front end and elevated flashboard 10 is set, the overflow of overflow weir 7 can be adjusted according to actual needs with this Measure size.

Aperture-water flow corresponds to the gatage water corresponding with the gatage that quarrel gate 4 is identified on cuing scale Flow, this corresponding relationship can after channel structure is built up according to the prior art measurement, calibrate come.

When quarrel needs work, it will optionally block sluice gate 5 and close to certain aperture, to depth rise to overflow weir 7 Top and be evident that overflow generate when, control aperture-water flow correspond to cuing scale, according to predetermined water supply flow adjust bucket Port strobe 4 have always on overflow weir 7 to corresponding aperture, during making quarrel supply water after the water flow of a bit of time balance and There is a certain amount of overflow, these overflow waters flow into overflow canal 6 through overflow weir 7, branch canal 2 is flowed back to finally by 6 water outlet of overflow canal, So as to for water at the other quarrels of downstream direction.In this process, it is added due to the overflow effect of overflow weir 7 and blocks sluice gate 5, quarrel gate 4 is in opening steady state, so that water flow is in water of constant depth, water pressure invariableness state at quarrel in branch canal 2, this When higher level's canal capacity increases and decreases in a certain range, the water surface at 2 quarrel of branch canal will not be raised or lowered obviously sample, be protected with this Demonstrate,proving the water outlet at quarrel is steady flow.

For example, in the prior art, the variation of higher level's canal capacity size, height of liquid level can cause 2 ordinary water level of branch canal ± 5% variation fluctuation, and then the fluctuation being discharged at quarrel is influenced, and if it is the utility model channel structure is used, when higher level's canal When same variation occurs for road uninterrupted, height of liquid level, it is discharged at quarrel and still keeps constant.

Based on channel structure disclosed above and its working principle, the utility model channel structure can be regarded as and prop up A miniature reservoir is formed on canal 2, when quarrel needs work, which is set up, and is realized appropriate water storage and is kept one Stablize liquid level, making quarrel water outlet is steady flow, and when quarrel does not need work, which restores water flow on branch canal 2 Circulation.This setting that water flow circulation on branch canal 2 is kept when setting up water storage, do not need when needing, can be fine The problem that silt content is larger in Huanghe water is adapted to, effectively avoids the problem that sand siltation.

For specific implementation of the above the utility model channel structure in real life, it is completely new real to can be a whole set of It applies, is also possible on existing irrigation canal be transformed by above-mentioned particular content.Further it will be understood that the utility model Channel structure is not suitable on branch canal 21 ~ 2 quarrel on terminal position.

Technical solution provided by the utility model is described in detail above.Specific case pair used herein The principles of the present invention and embodiment are expounded, and the above embodiments are only used to help understand, and this is practical new The structure and its core concept of type.It is practical not departing from it should be pointed out that for those skilled in the art Under the premise of new principle, several improvements and modifications can be made to this utility model, these improvement and modification also fall into this In the protection scope of utility model claims.

Claims

1. a kind of quarrel water outlet convenient for metering is the channel structure of steady flow, including branch canal (2), lateral canal (3), it is located at quarrel Quarrel gate (4), be located at the quarrel downstream on the branch canal (2) block sluice gate (5), it is characterised in that:

The channel structure further includes being located at the quarrel opposite and the branch canal (2) parallel overflow canal (6) and being located at institute It states aperture-water flow at quarrel gate (4) and corresponds to cuing scale；

The water inlet and water outlet of the overflow canal (6) are connected with the branch canal (2), and water inlet blocks sluice positioned at described Door (5) upstream, water outlet be located at it is described block sluice gate (5) downstream, overflow canal (6) water inlet be equipped with overflow weir (7) and Scouring sluice (8), overflow weir (7) top are higher by the branch canal (2) ordinary water level a small distance.

2. channel structure as described in claim 1, which is characterized in that have equally distributed half at the top of the overflow weir (7) Open slot (9).

3. channel structure as claimed in claim 2, which is characterized in that semi-open slot (9) front end tool at the top of the overflow weir (7) There are elevated flashboard (10).

4. channel structure as described in claim 1, which is characterized in that overflow weir (7) top and the branch canal (2) highest Water level maintains an equal level.