CN204982775U - Dialectal switching footpath water gaging device - Google Patents
Dialectal switching footpath water gaging device Download PDFInfo
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- CN204982775U CN204982775U CN201520559381.7U CN201520559381U CN204982775U CN 204982775 U CN204982775 U CN 204982775U CN 201520559381 U CN201520559381 U CN 201520559381U CN 204982775 U CN204982775 U CN 204982775U
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Abstract
The utility model discloses a dialectal switching footpath water gaging device, by motor, lead screw, steady water board, water tank, cross basin, ultrasonic device, controller and constitute, the water tank setting in one side of crossing the basin, cross and to be equipped with upper reaches activity flashboard in the basin and to fix the flashboard with low reaches, the motor install in the higher authority of crossing the basin through the support, the power output shaft of motor pass through the shaft joint and be connected with the one end of lead screw, the other end and the movable nut of installing on upper reaches activity flashboard of lead screw are connected, water tank bottom be equipped with steady water board, the controller be connected with motor and ultrasonic device respectively, the fixed flashboard in low reaches on be equipped with handstand regular triangle apopore. The device simple structure, it is convenient to dismantle, observes and controls and joins in marriage the combination, and the precision is high, and is intelligent strong, can realize the accurate reposition of redundant personnel in irrigated area and irrigate, using water wisely, plan water and scientific water distribution.
Description
Technical field:
The utility model relates to be measured and regulates and controls the device of tank field canal capacity, is specifically related to a kind of calibre-changeable triangular orifice outflow water device.
Background technology:
Existing water-measuring device mainly contains hydraulic structure, ad hoc water-measuring device and water-level meter three major types.Hydraulic structure comprises sluice, culvert, aqueduct, abrupt slope, drop etc., although hydraulic structure water gaging economy is simple, the building standard of building is larger to water gaging Accuracy.Ad hoc water-measuring device mainly comprises weir and flume by hydraulic calculation principle difference, wherein weir has triangle weir, rectangular weir, cipoletti weir, broad crested weir and three angle sections weirs, flat V-type weir etc., though partly can be combined with electric fixtures and carry out flow measurement, can't regulate and control flow; Flume has the rectangle venturi groove being applicable to various section, trapezoidal venturi groove, U-shaped venturi groove, Baxeer slot, cut_throat flume etc., supporting rate is there is lower when but flume and irrigated area channel and canal structure support the use, the shortcomings such as standardization level is poor, and versatility is not strong.Water-level meter has ultrasonic flowmeter, electromagnetic flowmeter, worm gear flow meter, current meter, water meter, pressure type water gauge, float type level meter, ultrasonic water level gauge, laser water-level gauge etc., though can more accurate flow measurement, but due to cost issues, can't be that vast irrigated area accepts.
Summary of the invention:
For problems of the prior art and defect, the purpose of this utility model is to provide a kind of calibre-changeable triangular orifice outflow water device, this apparatus structure is simple, it is convenient to dismantle, and combination is joined in observing and controlling, and precision is high, intelligent strong, irrigated area can be realized and precisely shunt irrigation, using water wisely, water using planning and science water distribution.
The utility model solves the technical scheme that its technical problem adopts: a kind of calibre-changeable water gaging device, by motor, leading screw, water-stabilizing board, water tank, cross tank, ultrasonic unit, controller forms, described water tank was arranged on the side of tank, described mistake in tank is provided with the movable flashboard in upstream and flashboard is fixed in downstream, described motor was arranged on the top of tank by supporting, the power output shaft of described motor is connected with one end of leading screw by shaft joint, the other end of described leading screw is connected with the movable nut be arranged on the movable flashboard in upstream, described water tank bottom is provided with water-stabilizing board, described controller is connected with motor and ultrasonic unit respectively, described downstream is fixed flashboard and is provided with handstand equilateral triangle weep hole.
The beneficial effects of the utility model are:
(1) orifice area becomes linearly with aperture change from non-linear, controls precisely;
(2) make full use of solar energy as power resources, adapt to field work environment, clean environment firendly;
(3) automatic regulation, simple to operate.
Accompanying drawing illustrates:
Fig. 1 is the front view of the utility model calibre-changeable triangular orifice outflow water device;
Fig. 2 is the top view of the utility model calibre-changeable triangular orifice outflow water device;
Fig. 3 is the left view of the utility model calibre-changeable triangular orifice outflow water device;
The linear list of Fig. 4 different opening down-off coefficient;
Reference numeral: 1, motor, 2, leading screw, 3, support, 4, weep hole, 5, the movable flashboard in upstream, 6, water-stabilizing board, 7, water tank, 8, downstream fixes flashboard, 9, ultrasonic unit, 10, cross tank, 11, controller.
Detailed description of the invention:
The specific embodiment provided below in conjunction with accompanying drawing and inventor is described in further details the utility model calibre-changeable triangular orifice outflow water device.
Fig. 1, Fig. 2, Fig. 3 is respectively from front view, top view, the angle of left view gives the utility model calibre-changeable water gaging device, by motor 1, leading screw 2, water-stabilizing board 6, water tank 7, cross tank 10, ultrasonic unit 9, controller 11 forms, described water tank 7 was arranged on the side of tank 10, described mistake in tank 10 is provided with the movable flashboard 5 in upstream and flashboard 8 is fixed in downstream, described motor 1 was arranged on the top of tank 10 by support 3, the power output shaft of described motor 1 is connected by shaft joint one end with leading screw 2, the other end of described leading screw 2 is connected with the movable nut be arranged on the movable flashboard 5 in upstream, water-stabilizing board 6 is provided with bottom described water tank 7, described controller 11 is connected with motor 1 and ultrasonic unit 9 respectively, described downstream is fixed flashboard 8 and is provided with handstand equilateral triangle weep hole 4.
Described motor 1 drives the movable flashboard 5 in upstream to move up and down to regulate downstream to fix flashboard 8 stands upside down the orifice area of equilateral triangle weep hole 4 by leading screw 2, orifice area becomes linearly with aperture change from non-linear, control precisely, water-stabilizing board 6 is provided with inside described water tank 7, described controller 11 is connected with motor 1 by electric wire, and described controller 11 is connected with ultrasonic unit 9.
The specific works principle of the utility model calibre-changeable water gaging device:
Utilize Similar Principle of Triangle, adopt del, make aperture in shutter opening and closing process remain similar triangle relation, area is only relevant with aperture, calculates cross-section of river flow by the relation of gatage and upper pond level, and calculate simple, flow measurement is accurate.
Triangle aperture size is adjustable, and flow-measuring formula is comparatively accurate, and form irrigated area channel long-distance intelligent TT&C system in conjunction with electrical system and management information system, this system according to needing water dispense flow rate, can meet the requirement of institute's water requirement by lift gate.
Major function is the regulation and control of intelligent flow measurement, comprises four functions, is numbered function 1,2,3 and 4.
Under main menu, press " 1 " key entered function 1, now perform the function of regulator hole aperture.Under function 1 menu, " 5 " key makes gate increase, and pins not loosely to rise always, and loose one's grip and namely stop, " 0 " key is that gate is declined, " 8 " key reset key, even if click gate to return to elemental height, clicks " # " key and return main menu.
Under main menu, press " 2 " key entered function 2, this function is measuring flow function.Press " # " key to confirm, the current flow by aperture of display screen display, clicks " # " key and returns main menu.
Under main menu, press " 3 " key entered function 3, press " # " key and confirm, the required flow of input, device is adjusted to corresponding aperture automatically, such as need the flow of 3L/s, this function must being inputted for controlling regime flow function by following form, making output flow be required steady state value; When input flow rate is not at this moment in the liquid level scope that can reach, the input error of system automatic-prompting.
" 4 " key entered function 4 is pressed under main menu, press " # " key to confirm, input total flow, such as input 6.6L/s, must input this function by following form is that after water distribution function inputs water distribution volume, controller is automatically adjusted to certain flow and started water distribution, now calculates water distribution required time and starts countdown, at the end of time, gate is closed automatically, and water distribution terminates.
Be applied on orifice outflow by camera light hole area change principle, aperture is set to inverted equilateral triangle, flashboard moving process intermediate cam shape aperture remains similarity relation, and make discharge area, aperture only relevant with aperture, formula is
area is become linearly from non-linear with aperture change, measures more accurate.In conjunction with automatic control technology, according to the head of required point of discharge regulation and control current surveying device, for field, existing irrigated area non-transformer problem, applied solar energy and battery solve the power of equipment.Device is simple to operate and intelligent, economical operation, can meet irrigated area and realizes the technical requirements of Precision Irrigation to point discharge.
Head adjustable flow intelligent observing and controlling system electric fixtures hardware mainly comprises stepper motor, stepper motor driver, high-precision ultrasonic level sensor, clock chip, LCD MODULE, matrix keyboard, take single-chip microcomputer as the processor of core.
Ultrasonic water level sensor adopts KS103 high accuracy module, and theoretical error controls within 1mm; Range data between itself and the water surface is sent to master controller by serial ports by ultrasonic water level sensor, and the driving of stepper motor adopts integrate motor to drive TB6540, and drive plate devises perfect signal isolation and protection mechanism; Matrix press-key carries out function selection and data input and adopt multistage menu in Chinese to rely on Chinese and English liquid crystal to carry out information displaying, constructs good human-computer interaction interface.
Program in head adjustable flow intelligent observing and controlling system uses C language to write, maintainable, portable good; Adopt modeled programming method, add the maintainability of systems soft ware; Ultrasonic wave adopts Serial Port Transmission data, and stepper motor adopts Timer Controlling, and guarantee that its function-stable is with reliable, this TT&C system uses software filtering methods such as " limit filtrations " data to be carried out filtering, guarantees that data accurately and reliably.
The workflow of software is: first initialize each module of system, then periodically calls key scan program, liquid crystal display program, stepper motor Electric Machine Control program and data processor.
The inversion equilateral triangle of to be aperture by aperture designs be 10cm, ensure to be always orifice outflow, gatage h and upper pond level then must be made to be not more than 0.65. as calculated to the ratio h/H of the distance H of orifice center, and when aperture is 10cm, minimum upstream liquid level is 22.05cm.So select channel Sidewall Height to be 30cm, during to ensure that gatage is maximum, larger fluctuating liquid level scope still can be had.
Gatage reduces gradually from 10cm, arranges one group of experiments of measuring at interval of 1cm, records the liquid level of gatage from 1cm-10cm and the relation of flow respectively.During each liquid level, read the flow of three electromagnetic flowmeter displays, average as the measured discharge Q corresponding to this liquid level.Water level is e, net water head H=e-2/3h, and discharge area is
instantaneous velocity is now calculated according to velocity formula
then discharge coefficient is μ=Q/ (V*S).Finally we find, when open range is at 4cm-10cm, under same aperture, along with the change of liquid level, discharge coefficient remains unchanged substantially, still adopt each discharge coefficient under same aperture and average as unique flow coefficient corresponding under this aperture.Utilize this coefficient, reverse goes out flow now, is called calculated flow rate q, then relative error is (q-Q)/Q*100%.Finally we draw, in the open range of 4cm-10cm, the error of calculated flow rate q and measured discharge Q is 1.64% to the maximum, and minimum is 0.04%, average out to 1.03%, and precision is very high, can reach the requirement of accurate water distribution completely.In accuracy rating, minimum discharge is 0.6L/s, maximum stream flow 6.6L/s.
First the utility model research understand by consulting related data the planning that triangle intelligence water gaging device carries out the Design and Features of structure, then feasibility study is carried out to device, then processing and fabricating and the test adjustment of this device is carried out, on this basis, by hydraulic experiment, existing delthyrium outflow constant formula is revised and improved, in experimentation, first the factor of flow and water yield error is caused to study to device, specify the mechanism that it causes error, then take appropriate measures to reduce error, then the discharge coefficient formula in automatic control program is revised, record the conveyance capacity under this condition, after carrying out many group experiments, experimental data is arranged, to go forward side by side line correlation matching, obtain the relative coefficient of revised formula, the discharge coefficient formula revised under the different opening after improving is evaluated, thus meet irrigated area and realize the technical requirements of Precision Irrigation to point discharge.
This device by channel, gate and management information system three part form.Canal cross section 22cm*30cm, the long 80cm of channel, upstream connects water tank, enables device independent operating; Gate has two shoe brake plates adjacent, and it is delivery port that flashboard is fixed in upstream, and outlet shapes is the equilateral triangle of length of side 10cm, and regulated the size of outlet by the movable flashboard in lifting downstream, gate lifting has the lifting of information system control step motor thus regulating gate.
Hydraulic test
(1) during experiment, regulating gate aperture is constant, under same aperture, change flow, the upper pond level that different flow is corresponding different, after complete for group DATA REASONING of under this aperture, then surveys the flow water level under different opening respectively.
(2) gathering and being analyzed by the discharge coefficient under different opening, following rule is drawn: same aperture down-off coefficient is almost constant, and different opening down-off coefficient increases with the increase of aperture, sees Fig. 4.
Calibre-changeable water gaging device of the present utility model can extensively be promoted, and is applicable to the water gaging water distribution of various channel, particularly at Arid&semi-arid area, different according to crops, time different accurately dispensing water resource, and after blocking water, the flow of display can facilitate charging; Be applicable to, to the accurate measurement of water channel water flow, conveniently study knowledge question of water conservancy; Urban Underground water gaging and sewerage treatment can also be applied to simultaneously.
Claims (1)
1. a calibre-changeable water gaging device, by motor (1), leading screw (2), water-stabilizing board (6), water tank (7), cross tank (10), ultrasonic unit (9), controller (11) forms, described water tank (7) was arranged on the side of tank (10), described mistake in tank (10) is provided with the movable flashboard (5) in upstream and flashboard (8) is fixed in downstream, described motor (1) was arranged on the top of tank (10) by supporting (3), the power output shaft of described motor (1) is connected by shaft joint one end with leading screw (2), the other end of described leading screw (2) is connected with the movable nut be arranged on the movable flashboard (5) in upstream, described water tank (7) bottom is provided with water-stabilizing board (6), described controller (11) is connected with motor (1) and ultrasonic unit (9) respectively, it is characterized in that: described downstream is fixed flashboard (8) and is provided with handstand equilateral triangle weep hole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520559381.7U CN204982775U (en) | 2015-07-29 | 2015-07-29 | Dialectal switching footpath water gaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520559381.7U CN204982775U (en) | 2015-07-29 | 2015-07-29 | Dialectal switching footpath water gaging device |
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| CN204982775U true CN204982775U (en) | 2016-01-20 |
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| CN201520559381.7U Expired - Fee Related CN204982775U (en) | 2015-07-29 | 2015-07-29 | Dialectal switching footpath water gaging device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040631A (en) * | 2015-07-29 | 2015-11-11 | 西北农林科技大学 | Caliber-variable water measurement device |
| CN107905605A (en) * | 2017-09-21 | 2018-04-13 | 河海大学 | The frequency modulation column damper of damping can be adjusted in real time |
-
2015
- 2015-07-29 CN CN201520559381.7U patent/CN204982775U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040631A (en) * | 2015-07-29 | 2015-11-11 | 西北农林科技大学 | Caliber-variable water measurement device |
| CN107905605A (en) * | 2017-09-21 | 2018-04-13 | 河海大学 | The frequency modulation column damper of damping can be adjusted in real time |
| CN107905605B (en) * | 2017-09-21 | 2024-01-23 | 河海大学 | Frequency-modulated liquid column damper capable of adjusting damping in real time |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20160729 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |