CN207197838U - For determining the device of plain river network irrigation pumping station water-electricity conversion coefficient - Google Patents

For determining the device of plain river network irrigation pumping station water-electricity conversion coefficient Download PDF

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Publication number
CN207197838U
CN207197838U CN201721248092.0U CN201721248092U CN207197838U CN 207197838 U CN207197838 U CN 207197838U CN 201721248092 U CN201721248092 U CN 201721248092U CN 207197838 U CN207197838 U CN 207197838U
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China
Prior art keywords
water
conversion coefficient
flow
flowmeter
pumping station
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Expired - Fee Related
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CN201721248092.0U
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Chinese (zh)
Inventor
崔延松
高柱
吕先洋
曹锡军
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Nantong University
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Nantong University
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Abstract

The utility model discloses a kind of device for being used to determine plain river network irrigation pumping station water-electricity conversion coefficient, it is characterized in that:The tank of water is pumped into including receiving water pump from pond, flow tube is set after tank, flowmeter is arranged at the posterior segment of flow tube, and the end of flow tube sets flow control valve;Flowmeter is apart from intake chamber flow measurement pipe diameter at least ten times, and flowmeter is apart from flow control valve at least five times of flow measurement pipe diameters;The par grid baffle plate of filtering and wave absorbing function has been set in the sink.The utility model is easy to use, is not take up agricultural land, flow measurement precision height.

Description

For determining the device of plain river network irrigation pumping station water-electricity conversion coefficient
Technical field
The utility model belongs to irrigation and water conservancy technical field, is related to a kind of flow measurement device, and in particular to one kind is used for Determine the device of plain river network irrigation pumping station water-electricity conversion coefficient.
Background technology
After agricultural water price reform, in order to ensure that water saving is preferential, agricultural water metering progressively extends to water user's individual, fills Area's irrigation pumping station flow measurement work is essential.Wherein, the small-sized irrigation pumping station tool along the main irrigation canal of river network in plain areas There is following water intaking feature:Lift is low, and disengaging length of tube is short, and fluidised form is more disorderly, when there is the higher situation of sediment charge to occur.By The effect of these factors, currently used electromagnetic flowmeter, larger measurement error can be produced in actual applications.Practical experience Show, during dress at the beginning of electromagnetic flowmeter, measurement error 3-5%, after running a period of time, its error is even up to 10- 15%.Another kind of measuring method assumes that water pump water outlet is flowed into after irrigation lateral, forms uniform flow, is surveyed by a current meter Section " mean flow rate " is measured, water-level gauge measurement water level, the area of " trapezoidal cross-section " is then estimated, area is multiplied by by mean flow rate Obtain flow.This method error is also apparent, and irrigation canal shape is often irregular, the calculating of cross-sectional area and average , error all be present in the representativeness of flow velocity measuring point, practice have shown that the error of this method measurement is still in 5-10%, and such method Use need to transform canal cross section and safeguarded, add cost.Precisely measured this greatly limits agricultural water Popularization and long-acting operation.
The irrigation canal of river network in plain areas is noticed due to being controlled by all kinds of hydraulic structures, the water of trunk diversion channels Level amplitude is smaller(Luffing in the single watering period is about 20-30cm), compared to larger pump head, it is believed that water The output of pump is constant, therefore the metering method of water can be replaced by electricity, i.e., between the metering method for " rolling over water with electricity " Connect water measurement amount.For improve " with electricity roll over water " metering method accuracy, can also water pump start shooting during, its high, normal, basic three Measured respectively under individual water level, measurement accuracy is further improved by average value.Produced avoiding problems above-mentioned direct measurement flow Raw various inconvenience.
, it is necessary to accurately water-electricity conversion coefficient, and every, irrigated area in the metering method for but " rolling over water with electricity " The output of water pump is all different, and this just needs the discharge of pump during accurate measurement turn on pump, so as to the water to every water pump Amount-electricity conversion coefficient is measured, therefore suitable for the cheap irrigation pumping station stream of river network in plain areas, accurate and flexible, cost Amount metering device urgently occurs.
The content of the invention
The purpose of this utility model be to provide it is a kind of it is easy to use, be not take up agricultural land, flow measurement precision is high is used for Determine the device of plain river network irrigation pumping station water-electricity conversion coefficient.
Technical solution of the present utility model is:
A kind of device for being used to determine plain river network irrigation pumping station water-electricity conversion coefficient, it is characterized in that:Including connecing The tank of water is pumped into from pond by water pump, flow tube is set after tank, flowmeter is arranged at the posterior segment of flow tube, flow tube End set flow control valve;Apart from intake chamber, flow measurement pipe diameter, flowmeter control flowmeter apart from flow at least ten times Valve at least five times of flow measurement pipe diameters;The par grid baffle plate of filtering and wave absorbing function has been set in the sink.
Flow tube is spliced by more length of tubing.The par grid baffle plate of described filtering and wave absorbing function has multilayer, if Put on water stream channel, be directly embedded in intake chamber.
Water-level gauge is set on intake chamber.The bottom of intake chamber and flow tube sets bearing.
Flowmeter uses clamp-mounting type ultrasonic flowmeter, plug-in type ultrasonic flowmeter, electromagnetic flowmeter or turbine flow Meter.
Intake chamber uses rigidity or flexible material;The water surface of intake chamber is higher than flow tube, and the distance being higher by least ensures to survey Flow tube full packages goes out stream.The shape of intake chamber can change.
Flow control valve is electrically operated valve, manually-operated gate or movable guide vane formula tail-gate.
The utility model control flow control valve aperture causes water-level gauge reading average to keep stable, and pipeline full packages goes out Flow, then the correction factor that dispatches from the factory of this covering device is multiplied by by meter readings, determine pump capacity.Record water pump stably goes out stream Water gauge reading near the duration and pump intake of some period, pump capacity reading is multiplied by with the period duration, The water of the period is obtained, while records the electricity reading of the period, with the water divided by electricity of the period, that is, is obtained Under the water level, the water power conversion coefficient of the pumping plant.Repeated the above steps under at least high, normal, basic three water levels, obtain high, normal, basic three Water power conversion coefficient under individual water level, after being averaged, that is, obtain the water power conversion coefficient of the irrigation pumping station.
The utility model is applied to the flow measurement of all kinds of Conventional compact pumping plants of river network in plain areas, and the device is to landform Adaptable, due to being assembled using small size parts, small agricultural vehicle can transport, and be especially suitable for the traffic such as rural area and irrigated area Condition under-developed area is motor-driven, and separate unit complete equipment can complete the measure work of the more set pumping plant flows in irrigated area, be not take up agricultural Land used, flow measurement precision is high, to measured irrigation water quality without particular/special requirement;As long as the material even compact of flow measurement tubing is firm Property pipeline, such as all kinds of metallic conduits and all kinds of engineering plastics pipes.When from manual flow valve door, a full set of current surveying device Extra power supply need not be provided, be especially suitable for field and use.All building blocks of invention device are the mark of in the markets at different levels Accurate ripe industrial and agricultural products so that whole system is more reliable and more stable, also allows for changing the parts of damage or aging in time, Maintenance cost is low, and cleaning is easy.Such as PVC pipeline can be selected in flow measurement pipeline, cheap, processing obtains convenient.
If the other covering device adapted clamp-mounting type ultrasonic flowmeter and Flow-rate adjustment manually-operated gate or Flow-rate adjustment Movable guide vane formula valve(It can be made of cheap engineering plastics), after the completion of flow measurement, clamp-mounting type ultrasonic flowmeter can be taken Under take away, and by the remainder of device(Inexpensive part)Stay in channel, both without prejudice to ejectment water, and it is reusable, Reduce the review work of water power conversion coefficient in future.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of the utility model one embodiment.
Embodiment
Embodiment 1:
A kind of device for being used to determine plain river network irrigation pumping station water-electricity conversion coefficient, including receive water pump and be pumped into The tank 1 of water, flow tube is set after tank(Standard pipe can be used)2, flowmeter 4 is arranged at the postmedian of flow tube, flow measurement The end of pipe sets electrically operated valve 3;Flowmeter apart from intake chamber flow measurement pipe diameter at least ten times, flowmeter apart from electrically operated valve extremely Few five times of flow measurement pipe diameters;The par grid baffle plate 5 of filtering and wave absorbing function has been set in the sink.
Flow tube is spliced by more length of tubing.The par grid baffle plate of described filtering and wave absorbing function has multilayer, if Put on water stream channel, be directly embedded in intake chamber.Water-level gauge 6 is set on intake chamber.The bottom of intake chamber and flow tube is set Bearing.Flowmeter uses clamp-mounting type ultrasonic flowmeter, plug-in type ultrasonic flowmeter, electromagnetic flowmeter or turbine flowmeter. Intake chamber uses rigidity or flexible material;The water surface of intake chamber is higher than flow tube, and the distance being higher by least ensures flow tube full packages Go out stream.
The shape of intake chamber can change.There is water gauge 7 in figure.
In use, opening water pump, current fall into intake chamber from exit of pump, and the par grid baffle plate by multilayer disappears After ripple, into flow measurement pipeline section, electrically operated valve bleeder is controlled finally by flow.Adjust the big of flow control valve It is small, and the reading of water-level gauge is observed, when water-level gauge after equal stable reading, then the meter reading of flowmeter is read, be multiplied by this The design modification coefficient of device, the final flow for determining water pump and stably going out stream.Record water pump stably goes out some period of stream Water gauge reading near duration and pump intake, pump capacity reading is multiplied by with the period duration, obtains the period Water, while record the electricity reading of the period, with the water divided by electricity of the period, that is, obtain under the water level, should The water power conversion coefficient of pumping plant.Repeat the above steps, obtained under high, normal, basic three water levels under at least high, normal, basic three water levels Water power conversion coefficient, after being averaged, that is, obtain the water power conversion coefficient of the irrigation pumping station.
Embodiment 2:
A kind of device for determining plain river network irrigation pumping station water-electricity conversion coefficient, including intake chamber, flow tube, stream Amount control manually-operated gate(Or movable guide vane formula valve)And water-level measuring post, flow measurement pipeline section are spliced by more standard pipeline, clamped Postmedian of the formula ultrasonic flowmeter applied to flow measurement pipeline section., can be according to reality for the less pumping plant of intake chamber installing space Border situation, on the premise of not disturbing water pump free to go out stream, by transforming pump outlet channel shape, diversion to suitably Side forms intake chamber using flexible material so that the water surface is higher than flow measurement tube top in intake chamber, and the distance being higher by ensures flow measurement Pipe full packages goes out stream, and installs water-level gauge.Then smooth location, the splicing of more standard pipeline is assembled into flow tube, supersonic flow Gauge applied to flow measurement pipeline section postmedian, it is electronic apart from downstream apart from least more than 10 times of pipe diameter of upstream intake chamber Valve at least more than 5 times pipe diameters.Require that ultrasonic flowmeter is installed on the middle part of single standard pipe simultaneously.Open water Pump, current fall into intake chamber from exit of pump, after the par grid baffle plate wave absorption by multilayer, into flow tube Section, manually-operated gate is controlled finally by flow(Or movable guide vane formula valve)Bleeder.Adjust flow control manually-operated gate(Or Movable guide vane formula valve)The size of aperture, and the reading of water-level gauge is observed, when water-level gauge after equal stable reading, then read The meter reading of ultrasonic flowmeter, the design modification coefficient of the present apparatus is multiplied by, the final flow for determining water pump and stably going out stream.Note Water gauge reading near the duration and pump intake of some period that record water pump stably goes out stream, is multiplied with the period duration With pump capacity reading, the water of the period is obtained, while records the electricity reading of the period, with the water of the period Divided by electricity, that is, obtain under the water level, the water power conversion coefficient of the pumping plant.Above-mentioned step is repeated under at least high, normal, basic three water levels Suddenly, the water power conversion coefficient under high, normal, basic three water levels is obtained, after being averaged, that is, obtains the water power conversion system of the irrigation pumping station Number.After coefficient determination, clamp-mounting type ultrasonic flowmeter is removed and taken away, by the remainder of device(Inexpensive part)Stay In channel, facilitate the review work of water power conversion coefficient in future.
As described above, although the utility model has been represented and described with reference to specific preferred embodiment, but it must not It is construed to the limitation to the utility model itself.In the spirit and scope of the present utility model for not departing from appended claims and defining Under the premise of, can various changes can be made in the form and details to it.

Claims (8)

1. a kind of device for being used to determine plain river network irrigation pumping station water-electricity conversion coefficient, it is characterized in that:Including receiving Water pump is pumped into the tank of water, and flow tube is set after tank, and flowmeter is arranged at the posterior segment of flow tube, and the end of flow tube is set Flow control valve;Flowmeter is apart from intake chamber flow measurement pipe diameter at least ten times, and flowmeter is apart from flow control valve at least five Times flow measurement pipe diameter;The par grid baffle plate of filtering and wave absorbing function has been set in the sink.
2. the device according to claim 1 for being used to determine plain river network irrigation pumping station water-electricity conversion coefficient, its It is characterized in:Flow tube is spliced by more length of tubing.
3. the device according to claim 1 or 2 for being used to determine plain river network irrigation pumping station water-electricity conversion coefficient, It is characterized in that:Described filtering and the par grid baffle plate of wave absorbing function have multilayer, are arranged on water stream channel, be directly embedded in into In tank.
4. the device according to claim 1 or 2 for being used to determine plain river network irrigation pumping station water-electricity conversion coefficient, It is characterized in that:Water-level gauge is set on intake chamber.
5. the device according to claim 1 or 2 for being used to determine plain river network irrigation pumping station water-electricity conversion coefficient, It is characterized in that:The bottom of intake chamber and flow tube sets bearing.
6. the device according to claim 1 or 2 for being used to determine plain river network irrigation pumping station water-electricity conversion coefficient, It is characterized in that:Flowmeter uses clamp-mounting type ultrasonic flowmeter, plug-in type ultrasonic flowmeter, electromagnetic flowmeter or turbine flow Meter.
7. the device according to claim 1 or 2 for being used to determine plain river network irrigation pumping station water-electricity conversion coefficient, It is characterized in that:Intake chamber uses rigidity or flexible material;The water surface of intake chamber is higher than flow tube, and the distance being higher by least ensures to survey Flow tube full packages goes out stream.
8. the device according to claim 1 or 2 for being used to determine plain river network irrigation pumping station water-electricity conversion coefficient, It is characterized in that:Flow control valve is electrically operated valve, manually-operated gate or movable guide vane formula tail-gate.
CN201721248092.0U 2017-09-27 2017-09-27 For determining the device of plain river network irrigation pumping station water-electricity conversion coefficient Expired - Fee Related CN207197838U (en)

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CN201721248092.0U CN207197838U (en) 2017-09-27 2017-09-27 For determining the device of plain river network irrigation pumping station water-electricity conversion coefficient

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721248092.0U CN207197838U (en) 2017-09-27 2017-09-27 For determining the device of plain river network irrigation pumping station water-electricity conversion coefficient

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114342785A (en) * 2021-12-31 2022-04-15 国网河北省电力有限公司营销服务中心 Electric water-breaking irrigation control method and electric water-breaking irrigation control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114342785A (en) * 2021-12-31 2022-04-15 国网河北省电力有限公司营销服务中心 Electric water-breaking irrigation control method and electric water-breaking irrigation control system
CN114342785B (en) * 2021-12-31 2023-03-03 国网河北省电力有限公司营销服务中心 Electric water-breaking irrigation control method and electric water-breaking irrigation control system

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180406

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CF01 Termination of patent right due to non-payment of annual fee