CN212275521U

CN212275521U - Tipping bucket type full-runoff sediment automatic monitoring device

Info

Publication number: CN212275521U
Application number: CN202022093755.4U
Authority: CN
Inventors: 杨伟; 高超; 郭文慧; 齐文杏; 周颖
Original assignee: Hubei Water Resources Research Institute
Current assignee: Hubei Water Resources Research Institute
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-01-01
Anticipated expiration: 2030-09-22

Abstract

The utility model discloses a tipping bucket type full runoff sediment automatic monitoring device, which comprises a cabinet body, a water inlet pipe, an energy dissipation pipe, a capacity measuring barrel, a tipping bucket inductor, a limiting stopper, a probe, a diversion port, a water level meter and an electronic valve, wherein the tipping bucket, the tipping bucket inductor, the limiting stopper, the probe, the diversion port, the water level meter and the electronic valve are arranged in the cabinet body; the energy dissipation pipe is connected with the water inlet pipe, the tipping bucket is positioned below the energy dissipation pipe, the tipping bucket is designed with double openings and is installed in the cabinet body through a tipping bucket rotating shaft, the tipping bucket inductor is positioned at the lower part of the tipping bucket and detects the working state of the tipping bucket, and the limiting devices are positioned at two sides below the tipping bucket and limit the maximum overturning position of the tipping bucket; the flow guide port is positioned below the tipping bucket to receive the silt dumped by the tipping bucket, and the volume measuring barrel is positioned below the flow guide port and connected with the flow guide port; installing a probe in the water inlet pipe, and starting the equipment when runoff exists in the water inlet pipe; the water level meter is arranged on the measuring barrel and is used for measuring the water level in the measuring barrel; the electronic valve is arranged at the lower part of the volume measuring barrel and used for draining water. The utility model discloses a cut apart and measure with the equal weight of tipping bucket, realized runoff silt full sampling analysis.

Description

Tipping bucket type full-runoff sediment automatic monitoring device

Technical Field

The utility model relates to a runoff silt monitoring devices, concretely relates to tipping bucket formula full runoff silt automatic monitoring device.

Background

The water and soil conservation monitoring is the basis for mastering the current situation of water and soil conservation, evaluating the water and soil conservation benefit, developing water and soil loss prediction and forecast and the like. The most common water and soil conservation monitoring facilities in runoff plot. At present, most of water and soil conservation monitoring points in China still adopt manual observation for monitoring runoff communities, a flow collecting pool is built at the bottom of the runoff community, the water level of the flow collecting pool is observed after rainfall is finished, and the sediment content is obtained through manual stirring, sampling, drying, weighing and other processes, so that the labor intensity is high, the data accuracy is low, and no loss process data exists.

The runoff sediment automatic monitoring method based on the weighing type principle is widely accepted. Most of the monitoring devices of this type on the market use sampling type measurement (for example, patent application No. 201821943524.4), a container is installed in the interior of the equipment, and the runoff flow and the sediment content are calculated by measuring the total volume and weight of the sediment in the container. However, during measurement and drainage, the equipment stops sampling, and the runoff flow and the sediment content in the time period can only be estimated through the measured values of the adjacent time periods. The measurement accuracy of this type of device is difficult to guarantee because the runoff and the sediment content do not vary uniformly.

The latest double-barrel weighing type monitoring device adopts two containers for alternate sampling and measurement (such as patent application with application numbers of 201920619202.2, 201920933716.5 or 201910537603.8), realizes full-scale observation of runoff silt and improves the monitoring accuracy. However, the device needs 2 sets of measuring containers, weighing devices and water level measuring devices, the volume of the equipment is greatly increased, and the cost and the failure rate of the equipment are greatly improved.

SUMMERY OF THE UTILITY MODEL

Reduce equipment cost and fault rate simultaneously in order to improve the monitoring accuracy, the utility model provides a tipping bucket formula full runoff silt automatic monitoring device has realized the equal weight of runoff silt and has cut apart through the tipping bucket device before measuring the container, then measures the volume of every partial runoff silt, calculates runoff flow and silt content through weight and volume.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the tipping bucket type full runoff sediment automatic monitoring device comprises a cabinet body, a water inlet pipe, an energy dissipation pipe and a capacity measuring bucket, and also comprises a tipping bucket, a tipping bucket sensor, a limiter, a probe, a flow guide port, a water level meter and an electronic valve which are arranged in the cabinet body; wherein the content of the first and second substances,

the energy dissipation pipe is connected with the water inlet pipe, the tipping bucket is positioned below the energy dissipation pipe, the tipping bucket is designed with double openings and is installed in the cabinet body through a tipping bucket rotating shaft, the tipping bucket inductor is positioned at the lower part of the tipping bucket to detect the working state of the tipping bucket, the limiting devices are positioned at two sides below the tipping bucket to limit the maximum turning position of the tipping bucket, and the cross section of the single-side bucket of the tipping bucket is triangular, trapezoidal or semicircular;

the flow guide port is positioned below the tipping bucket to receive silt dumped by the tipping bucket, and the volume measuring barrel is positioned below the flow guide port and connected with the flow guide port;

the probe is arranged in the water inlet pipe, and equipment is started when runoff is detected in the water inlet pipe;

the water level meter is arranged on the measuring barrel and is used for measuring the water level in the measuring barrel;

the electronic valve is arranged at the lower part of the volume measuring barrel and used for draining water.

Furthermore, the energy dissipation pipe is a vertical pipe connected with the water inlet pipe, and the ball is arranged in the energy dissipation pipe to reduce the impact force of water flow.

Furthermore, the flow guide opening is of a funnel-shaped structure, and the upper part of the flow guide opening is equal to or higher than the height of the tipping bucket.

Furthermore, the upper part of the volume measuring barrel is of a cylindrical structure, and the lower part of the volume measuring barrel is of a conical structure.

Furthermore, the effective volume of the measuring bucket is not less than the overturning volume of the tipping bucket when the water is clear.

Further, the water level gauge is an ultrasonic water level gauge.

And further, polishing the inner surfaces of the tipping bucket, the energy dissipation pipe, the flow guide port and the volume measuring bucket.

The utility model discloses beneficial effect:

1. and realizing the sampling analysis of the runoff sediment in full quantity.

2. Equal-weight division of runoff sediment is achieved through the skip bucket device arranged in front of the measuring container, then the volume of each part of runoff sediment is measured, runoff flow and sediment content are calculated through weight and volume, and the skip bucket is of a mechanical structure and high in reliability.

3. The runoff and sediment content measurement is realized through one set of water level meter, and the most complicated weighing device is cancelled compared with the existing equipment.

4. Only one single measuring container is needed, the size is small, and the cost is low.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

in the figure: the device comprises a water inlet pipe 1, an energy dissipation pipe 2, a ball 3, a probe 4, a tipping bucket 5, a tipping bucket rotating shaft 6, a limiter 7, a tipping bucket inductor 8, a flow guide port 9, a volume measuring barrel 10, a water level meter 11 and an electronic valve 12.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, the automatic skip bucket type full runoff sediment monitoring device comprises a cabinet body, a water inlet pipe 1, an energy dissipation pipe 2, a capacity measuring bucket 10, a skip bucket 5, a skip bucket sensor 8, a limiter 7, a probe 4, a flow guide port 9, a water level gauge 11 and an electronic valve 12, wherein the skip bucket 5, the skip bucket sensor 8, the limiter 7, the probe 4, the flow guide port 9 and the electronic valve 12 are installed in the cabinet body.

The runoff inlet pipe 1 guides the runoff to enter the energy dissipation pipe 2 in the equipment, the energy dissipation pipe 2 is connected the inlet pipe 1 is a vertical pipe, a round ball 3 is arranged in the pipe, the round ball 3 is preferably a smooth stainless steel round ball 3, runoff silt in the inlet pipe 1 enters the energy dissipation pipe 2 and then falls in advance through impacting the round ball 3, runoff impact force is reduced, and a bottom tipping bucket 5 caused by the impact force is reduced. The probe 4 is arranged between the energy dissipation pipe 2 and the water inlet pipe 1, when the probe 4 detects that the water inlet pipe 1 has runoff, the automatic control system controls equipment to automatically start, and the automatic control system adopts the prior art means, such as a DCS (distributed control system).

The tipping bucket 5 is positioned below the energy dissipation pipe 2, the tipping bucket 5 is designed into a double-opening structure and is installed in the cabinet body through a tipping bucket rotating shaft 6, wherein a tipping bucket opening is horizontal all the time and is aligned with an opening at the lower part of the energy dissipation pipe 2 to bear runoff flowing down from the energy dissipation pipe 2, the tipping bucket with the opening automatically tilts and overturns under the action of gravity after being filled, and the other opening is horizontal to bear the runoff at the moment. The skip bucket sensor 8 is located at the lower part of the skip bucket to detect the working state of the skip bucket, as shown in fig. 1, in the embodiment, the skip bucket sensor 8 is located at the left lower side of the skip bucket, when the left opening inclines to the right, the skip bucket sensor 8 senses a signal, so that the right opening can be confirmed to be in a runoff bearing state, when the right opening inclines to the right, the skip bucket sensor 8 does not sense a skip bucket signal, and therefore the left opening can be confirmed to be in the runoff bearing state. It should be understood that the skip bucket inductor 8 in this embodiment is provided with one skip bucket inductor 8, which is positioned at the left lower side of the skip bucket, and the skip bucket inductor 8 can be also arranged at the right lower side of the skip bucket; in addition, two skip inductors 8 may be provided at the lower left and lower right sides of the skip, respectively. The limiting devices 7 are positioned at two sides below the tipping bucket and limit the maximum turning position of the tipping bucket, the left side edge of the left opening of the tipping bucket is a relative to the horizontal line when the left opening turns to the maximum position, and a is more than 0 degrees and less than 90 degrees; when the left side opening of the tipping bucket is turned to the maximum position, the left side edge of the right side opening of the tipping bucket is a, and a is more than 0 degree and less than 90 degrees, so that the sediment in the tipping bucket can completely flow out of the tipping bucket.

Flow guide port 9 is located the skip bucket below accepts the silt that the skip bucket was emptyd, flow guide port 9 is for leaking hopper-shaped, and the runoff that flows out gets into the below and measures the container in the guide skip bucket, 9 upper portions of flow guide port equal to or are higher than the skip bucket height, prevent that silt from spilling over flow guide port 9 when the skip bucket turns over.

The volume measuring barrel 10 is positioned below the flow guide port 9 and connected with the flow guide port 9, the upper part of the volume measuring barrel is cylindrical, and the lower part of the volume measuring barrel is conical, so that runoff can be conveniently discharged, and silt deposition is avoided. The effective volume of the measuring barrel 10 is not less than the overturning volume of the tipping bucket when the clear water is used.

The water level meter 11 is mounted on the measuring barrel 10 and is used for measuring the water level in the measuring barrel 10, preferably, the water level meter 11 is an ultrasonic water level meter which has a filtering function and reduces errors caused by water level fluctuation;

the electronic valve 12 is installed at the lower portion of the measuring vessel 10 for discharging water.

The working principle is as follows:

the runoff flows into the tipping bucket after the impact force is eliminated by the energy dissipation pipe 2. When one tipping bucket opening receives the flow, the other tipping bucket opening is in a waiting state. When the runoff reaches the preset value, the tipping bucket immediately turns over by itself under the action of gravity, and the working states of the two openings are interchanged. Through the work, the tipping bucket divides continuous runoff into equal-weight segments. Runoff poured out from the tipping bucket flows into the measuring bucket 10, a water level measuring device in the measuring bucket 10 measures the water level, and the runoff volume is calculated according to the water level and the sectional area of the measuring bucket 10. The runoff weight of each bucket is a set value, and the sediment content of each bucket is obtained by combining volume calculation. And simultaneously, the runoff and the sediment are measured.

Claims

1. Tipping bucket formula full runoff silt automatic monitoring device, its characterized in that: the energy dissipation device comprises a cabinet body, a water inlet pipe, an energy dissipation pipe, a capacity measuring barrel, a tipping bucket inductor, a limiting stopper, a probe, a flow guide port, a water level meter and an electronic valve, wherein the tipping bucket, the tipping bucket inductor, the limiting stopper, the probe, the flow guide port, the water level meter and the electronic valve are arranged in the cabinet body; wherein the content of the first and second substances,

the energy dissipation pipe is connected with the water inlet pipe, the tipping bucket is positioned below the energy dissipation pipe, the tipping bucket is designed with double openings and is installed in the cabinet body through a tipping bucket rotating shaft, the tipping bucket inductor is positioned at the lower part of the tipping bucket to detect the working state of the tipping bucket, and the limiting devices are positioned at two sides below the tipping bucket to limit the maximum overturning position of the tipping bucket;

the flow guide port is positioned below the tipping bucket to receive runoff sediment dumped by the tipping bucket, and the volume measuring barrel is positioned below the flow guide port and connected with the flow guide port;

2. The automatic skip bucket type full-runoff sediment monitoring device according to claim 1, which is characterized in that: the energy dissipation pipe is a vertical pipe connected with the water inlet pipe, and the ball is arranged in the energy dissipation pipe to reduce runoff impact force.

3. The automatic skip bucket type full-runoff sediment monitoring device according to claim 1, which is characterized in that: the flow guide opening is of a funnel-shaped structure, and the upper part of the flow guide opening is equal to or higher than the height of the tipping bucket.

4. The automatic skip bucket type full-runoff sediment monitoring device according to claim 1, which is characterized in that: the upper part of the volume measuring barrel is of a cylindrical structure, and the lower part of the volume measuring barrel is of a conical structure.

5. The automatic skip bucket type full-scale runoff sediment monitoring device according to claim 1 or 4, which is characterized in that: the effective volume of the measuring bucket is not less than the overturning volume of the tipping bucket when the water is clear.

6. The automatic skip bucket type full-runoff sediment monitoring device according to claim 1, which is characterized in that: the water level gauge is an ultrasonic water level gauge.

7. The automatic skip bucket type full-runoff sediment monitoring device according to claim 1, which is characterized in that: and the energy dissipation pipe, the tipping bucket, the flow guide port and the inner surface of the volume measuring bucket are subjected to polishing treatment.

8. The automatic skip bucket type full-runoff sediment monitoring device according to claim 1, which is characterized in that: the tipping bucket is symmetrically designed, and the section of the single-side bucket is triangular, trapezoidal or semicircular.