CN209764866U - Water and soil conservation monitoring runoff simulation device - Google Patents

Water and soil conservation monitoring runoff simulation device Download PDF

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Publication number
CN209764866U
CN209764866U CN201920445134.2U CN201920445134U CN209764866U CN 209764866 U CN209764866 U CN 209764866U CN 201920445134 U CN201920445134 U CN 201920445134U CN 209764866 U CN209764866 U CN 209764866U
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runoff
water
pipe
metering
water supply
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CN201920445134.2U
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Inventor
雷智祥
胡菲菲
杨慧
王桂林
封一波
刘亚文
刘炜伟
徐立燕
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Lianyungang Branch Of Jiangsu Hydrology And Water Resources Survey Bureau
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Lianyungang Branch Of Jiangsu Hydrology And Water Resources Survey Bureau
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Abstract

The utility model relates to a runoff simulation device for soil and water conservation monitoring, which relates to the technical field of soil and water conservation monitoring and comprises a water supply pipe, a metering control device and a runoff simulation pipe; the metering control device comprises a metering water pipe, and a flow rate control valve, a flow meter and a flow rate meter are mounted on the metering water pipe; the two ends of the runoff simulating pipe are closed, and a plurality of outflow holes with equal apertures are formed in the runoff simulating pipe at uniform intervals on the same horizontal line; one end of the water supply pipe is connected with the water supply equipment, the other end of the water supply pipe is connected with the metering water pipe, and the other end of the metering water pipe is connected with the runoff simulation pipe. The utility model discloses the runoff state that the runoff district produced when can accurate simulation corresponds rainfall intensity, and simple structure, it is with low costs, easy and simple to handle, keep monitoring for soil and water and provide more accurate observation data.

Description

water and soil conservation monitoring runoff simulation device
Technical Field
The utility model belongs to the technical field of the soil and water conservation monitoring technology and specifically relates to a soil and water conservation monitoring runoff analogue means.
Background
The well-done water and soil conservation monitoring is an important basic work of ecological civilization construction and ecological environment protection work, runoff is an important component in water balance and is also the power of soil erosion, so the research on the runoff is very important for water and soil conservation and agricultural production. However, the time and labor are consumed for waiting for natural rainfall, the observation period is long, regular effective data are difficult to obtain, vegetation and soil are continuously changed along with the influence of human activities, and the hydrological study is still performing an artificial rainfall runoff experiment. The artificial rainfall simulation device can overcome the defects, shorten the test period and accelerate the process of researching the soil erosion rule, becomes an indispensable important means in the field, and is widely applied in the world since the 20 th century and the 20 th century. The artificial rainfall simulation device is used for testing and is mainly characterized in that: (1) reducing the equipment investment of runoff plot equipment and equipment; (2) the test cost is saved, and the test process is accelerated. The existing runoff simulating devices for scientific research experiments have various types, but generally have the following defects: (1) the rainfall simulation device has huge parts and is fixedly connected, so that the rainfall simulation device is very inconvenient to store, transport and use; (2) in the process of simulating rainfall, the rainfall is not smooth and uniform due to the action of the liquid pressure on the water surface; (3) the simulation accuracy is not high.
Disclosure of Invention
The to-be-solved technical problem of the utility model lies in to prior art not enough, provides a simulation precision height, simple structure, and is with low costs, and soil and water that is easy and simple to handle keeps monitoring runoff analogue means.
The to-be-solved technical problem of the utility model is realized through following technical scheme, the utility model relates to a soil and water conservation monitoring runoff analogue means, its characteristics are: comprises a water supply pipe, a metering control device and a runoff simulation pipe;
The metering control device comprises a metering water pipe, and a flow rate control valve, a flow meter and a flow rate meter are mounted on the metering water pipe;
the two ends of the runoff simulating pipe are closed, and a plurality of outflow holes with equal apertures are formed in the runoff simulating pipe at uniform intervals on the same horizontal line;
One end of the water supply pipe is connected with the water supply equipment, the other end of the water supply pipe is connected with the metering water pipe, and the other end of the metering water pipe is connected with the runoff simulation pipe.
The to-be-solved technical problem of the utility model can also be further realized through following technical scheme, above soil and water keep monitoring runoff analogue means in: the water supply equipment is urban tap water, pressure tank or centrifugal pump and other pressurized water supply facilities.
The to-be-solved technical problem of the utility model can also be further realized through following technical scheme, above soil and water keep monitoring runoff analogue means in: the runoff simulation pipe is two runoff short pipes, the two runoff short pipes are equal in length and are transversely arranged in parallel on the same horizontal line.
the to-be-solved technical problem of the utility model can also be further realized through following technical scheme, above soil and water keep monitoring runoff analogue means in: the two runoff short pipes are vertically connected with one end of the metering water pipe through the three-way joint, and the other ends of the two runoff short pipes are provided with pipe caps for sealing.
the to-be-solved technical problem of the utility model can also be further realized through following technical scheme, above soil and water keep monitoring runoff analogue means in: the total length of the two runoff short pipes is less than or equal to the length of the runoff plot collection groove.
The to-be-solved technical problem of the utility model can also be further realized through following technical scheme, above soil and water keep monitoring runoff analogue means in: the total length of the two runoff short pipes is equal to the length of the runoff collecting groove of the runoff plot.
The to-be-solved technical problem of the utility model can also be further realized through following technical scheme, above soil and water keep monitoring runoff analogue means in: the metering water pipe is detachably connected with the water supply pipe through a movable joint, and the water supply pipe is provided with a water supply valve.
the to-be-solved technical problem of the utility model can also be further realized through following technical scheme, above soil and water keep monitoring runoff analogue means in: the flow meter is a digital flow meter which can be set to zero.
The to-be-solved technical problem of the utility model can also be further realized through following technical scheme, above soil and water keep monitoring runoff analogue means in: the flow meter is a digital flow meter.
The utility model discloses when using, with the runoff simulation pipe along the long limit in the collection groove of runoff district and fix the upper portion at the collection inslot inside wall with outflow hole mode down, the use step is as follows:
(1) The water supply pipe is detachably connected with the metering water pipe, the water supply valve is opened, the water supply valve is closed after water flows out of the water supply pipe and the water flow is stable, and then the water supply pipe is connected with the metering water pipe again, so that the defects that the flow speed is not convenient to adjust quickly and the measuring accuracy is influenced due to the fact that water pressure, unstable water flow and the like are caused by the fact that more air is accumulated in the water supply pipe in the initial stage of water supply can be avoided;
(2) Opening the water supply valve, adjusting the flow rate control valve to adjust the flow rate on the flow rate meter to or close to a set value V;
the set value of the flow rate is determined according to the rainfall intensity, and the set value of the flow rate is calculated according to the following formula:
v is the simulated runoff flow rate, unit: m is3/h
P2424-hour rainfall for different rainfall intensities, unit: mm is
S is the area of a runoff plot, unit: m is2
(3) the water in the water supply pipe flows to the runoff simulating pipe through the metering water pipe and then flows out of a plurality of outflow holes of the runoff simulating pipe to simulate the runoff state generated by a runoff cell when the rainfall intensity corresponds to;
(4) And recording an initial value and a final value on a flowmeter, obtaining total runoff by making a difference, enabling the simulated runoff to flow into a runoff collecting tank of a runoff plot, and collecting the simulated runoff into next-stage water measuring equipment by the runoff collecting tank for a water and soil conservation monitoring test.
compared with the prior art, the beneficial effects of the utility model are that:
(1) The runoff simulation pipes provided with a plurality of outflow holes with equal height and equal aperture are arranged in the same horizontal direction, water is supplied to the runoff simulation pipes, and the corresponding flow velocity is adjusted according to the rainfall intensity, so that the runoff state of a runoff plot during atmospheric rainfall can be simulated;
(2) the flow rate control valve is arranged on the metering water pipe, and the accurate digital flow meter and the digital flow rate meter are adopted, so that the water yield can be quickly and accurately controlled, the corresponding flow rate can be adjusted according to different rainfall intensities, the rainfall intensity can be accurately simulated, and an accurate observation result is provided for the related work of soil and water conservation monitoring;
(3) The device has the advantages of simple integral structure, small volume, high flexibility, small occupied area, low cost, simplicity and convenience in operation, high simulation precision and wide application prospect, reduces the monitoring labor intensity and improves the accuracy of soil and water conservation monitoring.
Drawings
fig. 1 is a schematic structural view of the present invention;
fig. 2 is an installation schematic diagram of the present invention in application.
In the figure: 1. the water supply system comprises a water supply pipe, 2 parts of a water supply valve, 3 parts of a flow meter, 4 parts of a flow meter, 5 parts of a flow rate control valve, 6 parts of a three-way joint, 7 parts of a runoff simulating pipe, 8 parts of an outflow hole and 9 parts of a pipe cap.
Detailed Description
the following further describes embodiments of the present invention in order to facilitate further understanding of the present invention by those skilled in the art, and does not constitute a limitation to the right thereof.
[ example 1 ]
referring to fig. 1, a runoff simulation device for soil and water conservation monitoring comprises a water supply pipe 1, a metering control device and a runoff simulation pipe 7;
The metering control device comprises a metering water pipe, and a flow rate control valve 5, a flow meter 4 and a flow meter 3 are arranged on the metering water pipe;
The two ends of the runoff simulation pipe 7 are closed, and a plurality of outflow holes 8 with equal aperture are formed in the runoff simulation pipe 7 on the same horizontal line at intervals of 5cm, and the aperture is 4 mm; the runoff simulation pipe 7 is transversely arranged in the collecting tank; the runoff simulation pipe 7 is composed of two runoff short pipes, the two runoff short pipes are equal in length and are butted through a tee joint and are vertically connected with one end of the metering water pipe through a tee joint 6, and the other ends of the two runoff short pipes are provided with pipe caps 9 for sealing; the total length of the runoff simulating pipe 7 is equal to the length of the runoff collecting groove of the runoff plot.
One end of the water supply pipe 1 is connected with water supply equipment, the other end of the water supply pipe is connected with a metering water pipe, and the other end of the metering water pipe is connected with a runoff simulation pipe 7;
The water supply equipment is urban tap water, pressure tank or centrifugal pump and other pressurized water supply facilities.
The metering water pipe is sleeved with the water supply pipe 1 through a movable joint, and the water supply pipe 1 is provided with a water supply valve 2.
the flow meter 4 is a digital flow meter 4 capable of being set to zero, and the flow meter 4 capable of being set to zero is simple and convenient to operate and calculate.
the flow rate meter 3 adopts a digital flow rate meter 3, so that the flow rate can be conveniently adjusted.
Referring to fig. 2, when in use, the runoff simulating pipe is arranged at the upper part of the inner side wall of the collecting groove in a mode that the outflow hole faces downwards and is tightly attached to the inner wall of the collecting groove, and the using steps are as follows:
(1) Dismantle the delivery pipe and be connected with the measurement water pipe, open the supply valve, wait to supply pipe outflow and rivers and close the supply valve after stable, resume the delivery pipe with the measurement water pipe again and be connected, can avoid supplying water the initial stage because of the delivery pipe cohesion more air lead to the fast speed of adjusting of being convenient for that situation such as water pressure, rivers are unstable brought, influence the defect of survey accuracy like this.
(2) Opening the water supply valve, adjusting the flow rate control valve 5, and adjusting the flow rate on the flow rate meter to a set value V;
The set value of the flow rate is determined according to the rainfall intensity, and the set value of the flow rate is calculated according to the following formula:
v is the simulated runoff flow rate, unit: m is3/h
P2424-hour rainfall for different rainfall intensities, unit: mm is
S is the area of a runoff plot, unit: m is2
(3) The water in the water supply pipe flows to the runoff simulating pipe through the metering water pipe and then flows out of a plurality of outflow holes of the runoff simulating pipe to simulate the runoff state generated by a runoff cell when the rainfall intensity corresponds to;
(4) And recording an initial value and a final value on a flowmeter, obtaining total runoff by making a difference, enabling the simulated runoff to flow into a runoff collecting tank of a runoff plot, and collecting the simulated runoff into next-stage water measuring equipment by the runoff collecting tank for a water and soil conservation monitoring test.

Claims (9)

1. The utility model provides a soil and water conservation monitoring runoff analogue means which characterized in that: comprises a water supply pipe, a metering control device and a runoff simulation pipe;
The metering control device comprises a metering water pipe, and a flow rate control valve, a flow meter and a flow rate meter are mounted on the metering water pipe;
The two ends of the runoff simulating pipe are closed, and a plurality of outflow holes with equal apertures are formed in the runoff simulating pipe at uniform intervals on the same horizontal line;
One end of the water supply pipe is connected with the water supply equipment, the other end of the water supply pipe is connected with the metering water pipe, and the other end of the metering water pipe is connected with the runoff simulation pipe.
2. A water and soil conservation monitoring runoff simulation apparatus according to claim 1, wherein: the water supply equipment is urban tap water, pressure tank or centrifugal pump and other pressurized water supply facilities.
3. A water and soil conservation monitoring runoff simulation apparatus according to claim 1, wherein: the runoff simulation pipe is two runoff short pipes, the two runoff short pipes are equal in length and are transversely arranged in parallel on the same horizontal line.
4. A water and soil conservation monitoring runoff simulation apparatus according to claim 3, wherein: the two runoff short pipes are vertically connected with one end of the metering water pipe through the three-way joint, and the other ends of the two runoff short pipes are provided with pipe caps for sealing.
5. A water and soil conservation monitoring runoff simulation apparatus according to claim 3, wherein: the total length of the two runoff short pipes is less than or equal to the length of the runoff plot collection groove.
6. A water and soil conservation monitoring runoff simulation apparatus according to claim 5, wherein: the total length of the two runoff short pipes is equal to the length of the runoff collecting groove of the runoff plot.
7. A water and soil conservation monitoring runoff simulation apparatus according to claim 1, wherein: the metering water pipe is detachably connected with the water supply pipe through a movable joint, and the water supply pipe is provided with a water supply valve.
8. a water and soil conservation monitoring runoff simulation apparatus according to claim 1, wherein: the flow meter is a digital flow meter which can be set to zero.
9. A water and soil conservation monitoring runoff simulation apparatus according to claim 1, wherein: the flow meter is a digital flow meter.
CN201920445134.2U 2019-04-03 2019-04-03 Water and soil conservation monitoring runoff simulation device Active CN209764866U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920445134.2U CN209764866U (en) 2019-04-03 2019-04-03 Water and soil conservation monitoring runoff simulation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920445134.2U CN209764866U (en) 2019-04-03 2019-04-03 Water and soil conservation monitoring runoff simulation device

Publications (1)

Publication Number Publication Date
CN209764866U true CN209764866U (en) 2019-12-10

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Application Number Title Priority Date Filing Date
CN201920445134.2U Active CN209764866U (en) 2019-04-03 2019-04-03 Water and soil conservation monitoring runoff simulation device

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112881084A (en) * 2021-01-25 2021-06-01 江苏省水文水资源勘测局泰州分局 Water and soil conservation runoff sediment sampling equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112881084A (en) * 2021-01-25 2021-06-01 江苏省水文水资源勘测局泰州分局 Water and soil conservation runoff sediment sampling equipment
CN112881084B (en) * 2021-01-25 2022-06-28 江苏省水文水资源勘测局泰州分局 Water and soil conservation runoff sediment sampling equipment

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