CN217465891U

CN217465891U - Accurate measuring device for field irrigation quantity

Info

Publication number: CN217465891U
Application number: CN202221581460.4U
Authority: CN
Inventors: 王树仿; 王理萍; 王根茂; 毕红春; 张田贵
Original assignee: Yunnan Agricultural University
Current assignee: Yunnan Agricultural University
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-09-20
Anticipated expiration: 2032-06-23

Abstract

The utility model relates to an accurate measurement device of field irrigation volume belongs to farmland hydraulic engineering technical field. The device for accurately measuring the field irrigation quantity comprises a water tank, an external water tank, a water meter and a graduated scale; the water tank is internally separated by a partition plate, the external water tank is arranged on the outer side surface of the water tank, an overflow port II is arranged between the external water tank and the water tank, a control gate is arranged on the overflow port II, a water inlet pipeline is connected onto the water tank, a water pump is arranged on the water inlet pipeline, the bottom of the water tank and the bottom of the external water tank are both connected with a water outlet pipeline, a gate valve and a water meter are arranged on the water outlet pipeline at the bottom of the water tank, and a graduated scale is arranged on the water tank. During the irrigation period, the water flow of the water outlet pipe is always in a full pipe state, so that the reading of the water meter is more accurate; the utility model utilizes the overflow between the cabins to ensure that the irrigation water pressure is constant and the irrigation water is more uniform; the utility model discloses the ratio of two overflow mouth widths of full adjustment measures the overflow volume of watering, is adapted to the field piece of different areas.

Description

Accurate measuring device for field irrigation quantity

Technical Field

The utility model belongs to the technical field of the irrigation and water conservancy engineering, specific theory relates to an accurate measurement device of field irrigation volume.

Background

At present, farmland planting fields in China are scattered, ground irrigation is still the main mode of farmland irrigation in China, and accurate measurement of irrigation quantity is crucial to field irrigation test results when relevant field irrigation tests are carried out.

When a water pump is used for pumping water to perform ground irrigation tests of single plots, water meters or flow meters are mostly used for measuring the irrigation quantity. When a mechanical water meter is used for measuring, irrigation water enters the field through a pipeline and the water meter, and the problem of inaccurate reading of the water meter can occur if an irrigation water head cannot reach the working pressure of the water meter, the flow rate cannot reach the starting flow rate of the water meter or water flow cannot form full pipe flow at the moment; the electromagnetic flowmeter and the ultrasonic flowmeter have the same problems, influence on measurement accuracy, and have the problems of higher price, high requirement on water quality and the like.

Therefore, it is necessary to provide a field irrigation quantity accurate measuring device with low cost, simple structure, easy operation and easy popularization.

SUMMERY OF THE UTILITY MODEL

The inaccurate condition of reading can appear when water gauge or flowmeter that exist in order to overcome among the background art carries out the measurement of the volume of watering, the price is on the high side, require high scheduling problem to quality of water, the utility model provides an accurate measuring device of volume of watering in field.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the utility model provides an accurate measuring device for field irrigation quantity, which comprises a water tank 3, an external water tank 6, a water meter 8 and a graduated scale 10; the water tank 3 is internally separated by a partition plate, the external water tank 6 is arranged on the outer side surface of the water tank 3, an overflow port II 5-2 is arranged between the external water tank 6 and the water tank 3, a control gate 5-3 is arranged on the overflow port II 5-2, the water tank 3 is connected with a water inlet pipeline 2, a water pump 1 is arranged on the water inlet pipeline 2, the bottoms of the water tank 3 and the external water tank 6 are both connected with water outlet pipelines, a gate valve and a water meter 8 are arranged on the water outlet pipeline at the bottom of the water tank 3, and a graduated scale 10 is arranged on the water tank 3.

Preferably, the partition plate comprises a partition plate I4-1 and a partition plate II 4-2, the partition plate I4-1 and the partition plate II 4-2 divide the water tank 3 into a cabin I3-1, a cabin II 3-2 and a cabin III 3-3, the cabin II 3-2 is located between the cabin I3-1 and the cabin III 3-3, and the external water tank 6 is arranged on the outer side face of the cabin II 3-2.

Preferably, an overflow port I5-1 is arranged on a partition plate II 4-2 between the cabin II 3-2 and the cabin III 3-3.

Preferably, the water outlet pipeline comprises a water outlet pipeline I7-1, a water outlet pipeline II 7-2, a water outlet pipeline III 7-3 and a water outlet pipeline IV 7-4, the water outlet pipeline I7-1 is connected to the bottom of the cabin I3-1, the water outlet pipeline II 7-2 is connected to the bottom of the cabin II 3-2, the water outlet pipeline III 7-3 is connected to the bottom of the cabin III 3-3, and the water outlet pipeline IV 7-4 is connected to the bottom of the external water tank 6.

Preferably, the gate valve comprises a gate valve I9-1, a gate valve II 9-2 and a gate valve III 9-3, wherein the gate valve I9-1 is arranged on the water outlet pipeline I7-1, the gate valve II 9-2 is arranged on the water outlet pipeline II 7-2, and the gate valve III 9-3 is arranged on the water outlet pipeline III 7-3.

Preferably, the water meter 8 is arranged on the water outlet pipeline II 7-2.

Preferably, the water outlet pipeline I7-1, the water outlet pipeline II 7-2, the water outlet pipeline III 7-3 and the water outlet pipeline IV 7-4 are all connected to the irrigation water outlet main pipe.

Preferably, the cabin I3-1, the cabin II 3-2 and the cabin III 3-3 are all provided with graduated scales 10.

Preferably, the pipe diameter of the water outlet pipeline II 7-2 is smaller than that of the water inlet pipeline 2.

Preferably, the height of the overflow port I5-1 is the same as that of the overflow port II 5-2, and the width of the cabin III 3-3 is the same as that of the external water tank 6.

The utility model has the advantages that:

the utility model has the advantages of low cost, simple structure, easy operation and easy popularization, and during the irrigation period, the water flow of the water outlet pipe is always in a full pipe state, so that the reading of the water meter is more accurate; the utility model utilizes the overflow between the cabins to ensure that the irrigation water pressure is constant and the irrigation water is more uniform; the utility model discloses the ratio of two overflow mouth widths of full adjustment measures the overflow volume of watering, is adapted to the field piece of different areas.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a perspective schematic view of the present invention.

In the figure, 1-water pump, 2-water inlet pipeline, 3-water tank, 3-1-cabin I, 3-2-cabin II, 3-3-cabin III, 4-1-partition I, 4-2-partition II, 5-1-overflow port I, 5-2-overflow port II, 5-3-control gate, 6-external water tank, 7-1-water outlet pipeline I, 7-2-water outlet pipeline II, 7-3-water outlet pipeline III, 7-4-water outlet pipeline IV, 8-water meter, 9-1-gate valve I, 9-2-gate valve II, 9-3-gate valve III and 10-graduated scale.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will make a detailed description of a preferred embodiment of the present invention with reference to the accompanying drawings to facilitate understanding of the skilled person.

As shown in fig. 1-2, the device for accurately measuring the field irrigation quantity comprises a water tank 3, an external water tank 6, a water meter 8 and a graduated scale 10; the inside of the water tank 3 is separated by a partition plate, the top of the partition plate is lower than the top of the water tank 3, the external water tank 6 is arranged on the outer side surface of the water tank 3, the partition plate comprises a partition plate I4-1 and a partition plate II 4-2, the partition plate I4-1 and the partition plate II 4-2 divide the water tank 3 into a cabin I3-1, a cabin II 3-2 and a cabin III 3-3, the cabin II 3-2 is positioned between the cabin I3-1 and the cabin III 3-3, the external water tank 6 is arranged on the outer side surface of the cabin II 3-2, an overflow port I5-1 is arranged on the partition plate II 4-2 between the cabin II 3-2 and the cabin III 3-3, an overflow port II 5-2 is arranged between the external water tank 6 and the water tank 3, a control gate 5-3 is arranged on the overflow port II 5-2, and the control gate 5-3 can control the opening degree of the overflow port II 5-2, the opening width of the overflow port II 5-2 is larger than the width of the overflow port I5-1, the height of the overflow port I5-1 is the same as that of the overflow port II 5-2, and the width of the cabin III 3-3 is the same as that of the external water tank 6, so that the ratio of water flow overflowing from the overflow port I5-1 and the overflow port II 5-2 is the same as that of the widths of the overflow port I5-1 and the overflow port II 5-2.

The water tank 3 is connected with a water inlet pipeline 2, the water inlet pipeline 2 is provided with a water pump 1, the water pump 1 controls water inlet of the water inlet pipeline 2, the bottom of the water tank 3 and the bottom of an external water tank 6 are both connected with water outlet pipelines, the water outlet pipelines comprise a water outlet pipeline I7-1, a water outlet pipeline II 7-2, a water outlet pipeline III 7-3 and a water outlet pipeline IV 7-4, the water outlet pipeline I7-1 is connected with the bottom of a cabin I3-1, the water outlet pipeline II 7-2 is connected with the bottom of the cabin II 3-2, the water outlet pipeline III 7-3 is connected with the bottom of the cabin III 3-3, the water outlet pipeline IV 7-4 is connected with the bottom of the external water tank 6, the water outlet pipeline at the bottom of the water tank 3 is provided with a gate valve and a water meter 8, the gate valve comprises a gate valve I9-1, a gate valve II 9-2 and a gate valve III-3, the gate valve I9-1 is arranged on the water outlet pipeline I7-1, the gate valve II 9-2 is arranged on the water outlet pipeline II 7-2, the gate valve III 9-3 is arranged on the water outlet pipeline III 7-3, and the water meter 8 is arranged on the water outlet pipeline II 7-2.

The water outlet pipeline I7-1, the water outlet pipeline II 7-2, the water outlet pipeline III 7-3 and the water outlet pipeline IV 7-4 are all connected to the irrigation water outlet main pipe, the pipe diameter of the water outlet pipeline II 7-2 is smaller than that of the water inlet pipeline 2, the water outlet pipeline II 7-2 is guaranteed to be in full pipe flow all the time in the water outlet process, the accuracy of measurement of the water meter 8 is guaranteed, the cabin I3-1, the cabin II 3-2 and the cabin III 3-3 are all provided with the graduated scales 10, and the water quantity of each cabin is measured through the graduated scales 10.

The utility model discloses a working process:

when irrigation starts, the gate valve I9-1, the gate valve II 9-2 and the gate valve III 9-3 are all in a closed state. The water pump 1 is started, water flows into the cabin I3-1 through the water inlet pipeline 2, and when the water level of the water rises to the partition plate I4-1, the water in the cabin I3-1 overflows to the cabin II 3-2. When the water level of the cabin II 3-2 gradually rises to the overflow port I5-1, the gate valve II 9-2 is opened, water flows out of the water outlet pipeline II 7-2, the water meter 8 starts to work, and the water outlet pipeline II 7-2 can be ensured to be in a full pipe flow state all the time and the water head of the cabin II 3-2 can be ensured to be constant because the water outlet pipeline II 7-2 is smaller than the pipe diameter of the water inlet pipeline 2, and the reading of the water meter 8 is accurate at the moment.

When the cabin II 3-2 overflows, redundant water in the cabin II 3-2 flows into the cabin III 3-3 and the external water tank 6 through the overflow port I5-1 and the overflow port II 5-2 respectively. As the width of the overflow port I5-1 is far smaller than the opening width of the overflow port II 5-2, most of the water flows into the external water tank 6 through the overflow port II 5-2 and directly flows into the field through the water outlet pipeline IV 7-4, and the least of the water flows into the cabin III 3-3 through the overflow port I5-1. The amount of water in the cabin III 3-3 can be measured by the graduated scale 10, and the inflow of the external water tank 6 can be determined by the ratio of the width of the overflow port I5-2 to the width of the overflow port II 5-1.

After the pump is stopped, immediately closing the gate valve II 9-2, reading the reading of the cabin II 3-2 according to the graduated scale 10, then opening the gate valve II 9-2, and putting the residual water in the cabin II 3-2 into the field; meanwhile, reading the reading of the cabin I3-1 according to the graduated scale 10, and then opening the gate valve I9-1 to enable the water in the cabin I3-1 to flow into the field; and reading the reading of the cabin III 3-3 according to the graduated scale 10, and opening the gate valve III 9-3 to enable the water in the cabin III 3-3 to flow into the field.

Assuming that the ratio of the width of the overflow port II 5-2 to the width of the overflow port I5-1 is x, and the reading water quantity of the cabin III 3-3 after the pump is stopped is a, the water quantity flowing into the field through the external water tank 6 is xa; assuming that the volume of the water meter reading is b, the volume of the reading in compartment I3-1 is c, and the volume of the reading in compartment II 3-2 is d. The total amount of irrigation water flowing into the field after irrigation should be the sum of these five, i.e., a + xa + b + c + d.

The utility model has the advantages of low cost, simple structure, easy operation and easy popularization, and during the irrigation period, the water flow of the water outlet pipe is always in a full pipe state, so that the reading of the water meter is more accurate; the utility model utilizes the overflow between the cabins to ensure that the irrigation water pressure is constant and the irrigation water is more uniform; the utility model discloses the ratio of two overflow mouth widths of full adjustment measures the overflow volume of watering, is adapted to the field piece of equidimension area not.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims

1. The utility model provides an accurate measurement device of field irrigation volume which characterized in that: the device for accurately measuring the field irrigation quantity comprises a water tank (3), an external water tank (6), a water meter (8) and a graduated scale (10); the water tank is characterized in that the inside of the water tank (3) is separated through a partition plate, the external water tank (6) is arranged on the outer side surface of the water tank (3), an overflow port II (5-2) is arranged between the external water tank (6) and the water tank (3), a control gate (5-3) is arranged on the overflow port II (5-2), a water inlet pipeline (2) is connected onto the water tank (3), a water pump (1) is installed on the water inlet pipeline (2), water outlet pipelines are connected to the bottom of the water tank (3) and the bottom of the external water tank (6), a gate valve and a water meter (8) are arranged on the water outlet pipeline at the bottom of the water tank (3), and a graduated scale (10) is arranged on the water tank (3).

2. The device for accurately measuring the field irrigation water quantity according to claim 1, wherein: the partition board comprises a partition board I (4-1) and a partition board II (4-2), the partition board I (4-1) and the partition board II (4-2) divide the water tank (3) into a cabin I (3-1), a cabin II (3-2) and a cabin III (3-3), the cabin II (3-2) is located between the cabin I (3-1) and the cabin III (3-3), and the external water tank (6) is arranged on the outer side face of the cabin II (3-2).

3. The device for accurately measuring the field irrigation water quantity according to claim 2, wherein: an overflow port I (5-1) is arranged on a partition plate II (4-2) between the cabin II (3-2) and the cabin III (3-3).

4. The device for precisely measuring the field irrigation according to claim 2 or 3, wherein: the water outlet pipeline comprises a water outlet pipeline I (7-1), a water outlet pipeline II (7-2), a water outlet pipeline III (7-3) and a water outlet pipeline IV (7-4), the water outlet pipeline I (7-1) is connected to the bottom of the cabin I (3-1), the water outlet pipeline II (7-2) is connected to the bottom of the cabin II (3-2), the water outlet pipeline III (7-3) is connected to the bottom of the cabin III (3-3), and the water outlet pipeline IV (7-4) is connected to the bottom of the external water tank (6).

5. The device for accurately measuring the field irrigation water quantity according to claim 4, wherein: the gate valve comprises a gate valve I (9-1), a gate valve II (9-2) and a gate valve III (9-3), wherein the gate valve I (9-1) is installed on the water outlet pipeline I (7-1), the gate valve II (9-2) is installed on the water outlet pipeline II (7-2), and the gate valve III (9-3) is installed on the water outlet pipeline III (7-3).

6. The device for accurately measuring the field irrigation water quantity according to claim 4, wherein: and the water meter (8) is arranged on the water outlet pipeline II (7-2).

7. The device for precisely measuring the irrigation quantity of a field as claimed in claim 4, wherein: and the water outlet pipeline I (7-1), the water outlet pipeline II (7-2), the water outlet pipeline III (7-3) and the water outlet pipeline IV (7-4) are all connected to the irrigation water outlet main pipe.

8. The device for accurately measuring the field irrigation water quantity according to claim 2, 3, 5, 6 or 7, characterized in that: and the cabin I (3-1), the cabin II (3-2) and the cabin III (3-3) are provided with graduated scales (10).

9. The device for accurately measuring the field irrigation water quantity according to claim 5, 6 or 7, wherein: the pipe diameter of the water outlet pipeline II (7-2) is smaller than that of the water inlet pipeline (2).

10. The device for accurately measuring the field irrigation water quantity according to claim 5, 6 or 7, wherein: the height of the overflow port I (5-1) is the same as that of the overflow port II (5-2), and the width of the cabin III (3-3) is the same as that of the external water tank (6).