CN111780830A

CN111780830A - Rice field water meter and rice field water level control method

Info

Publication number: CN111780830A
Application number: CN202010721525.XA
Authority: CN
Inventors: 刘日辉; 丁惠杰; 张丽
Original assignee: Yuanmi Agricultural Technology Co ltd
Current assignee: Yuanmi Agricultural Technology Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2020-10-16
Anticipated expiration: 2040-07-24
Also published as: CN111780830B

Abstract

A paddy field water viewer and a control method of paddy field water level comprise a cavity, wherein a water level measurer is arranged in the cavity, and a water level acquisition mechanism is arranged outside the water level measurer; the water level acquisition mechanism comprises a water balance cavity for balancing with external water, and a power component for discharging water in the water balance cavity is arranged above the water balance cavity; the water balance cavity comprises an inner cavity body which is adjacently arranged with the water level measurer, an outer cavity body which is arranged outside the inner cavity body and communicated with external water is arranged outside the inner cavity body, a water absorption filter piece is arranged in the outer cavity body, an intermediate partition plate is arranged between the inner cavity body and the outer cavity body, and a connecting through hole is arranged on the intermediate partition plate. This application adopts the interior cavity and the outer cavity that the cooperation set up for outside water can accomplish the filtration through the absorbent filter piece in the outer cavity earlier, then reentrant interior intracavity, thereby guarantees holistic stability.

Description

Rice field water meter and rice field water level control method

Technical Field

The application relates to a paddy field water viewer and a paddy field water level control method.

Background

In the rice planting process, because rice is a crop with high water requirement, the monitoring of the water amount in the rice field is important, but the water amount in the rice field is in frequent dynamic change due to the influences of transpiration, precipitation and the like. At present, the control mostly adopts a method of a scale, a water level gauge or even empirical judgment, and the accuracy is poor. At present, some methods for remote measurement or remote monitoring are available, but the monitoring effect is poor, and the actual amount of water used by the paddy rice cannot be fed back correctly, so that the defects in the monitoring of the growth conditions of the paddy rice field are obvious.

Disclosure of Invention

In order to solve the problems, the application discloses a paddy field water viewer on one hand, which comprises a cavity, wherein a water level measurer is arranged in the cavity, and a water level obtaining mechanism is arranged outside the water level measurer; the water level acquisition mechanism comprises a water balance cavity for balancing with external water, and a power component for discharging water in the water balance cavity is arranged above the water balance cavity; the water balance cavity comprises an inner cavity body which is adjacently arranged with the water level measurer, an outer cavity body which is arranged outside the inner cavity body and communicated with external water is arranged outside the inner cavity body, a water absorption filter piece is arranged in the outer cavity body, an intermediate partition plate is arranged between the inner cavity body and the outer cavity body, and a connecting through hole is arranged on the intermediate partition plate. This application adopts the interior cavity and the outer cavity that the cooperation set up, make outside water can earlier accomplish the filtration through the filter that absorbs water in the outer cavity, then reentrant interior intracavity, thereby guarantee holistic stability, this application adopts the filter that absorbs water and the mode that power component cooperation set up to make when the water level measurement in addition, at first utilize power component with the water discharge, then recycle the buffering and the water absorption of the filter that absorbs water, make the water yield can steadily enter into interior cavity, avoid taking place the delay and the inaccuracy of measuring the water level.

Preferably, the power assembly comprises an outer pressing plate matched with the outer cavity and an inner pressing plate matched with the inner cavity, the top of the cavity is further provided with a pressing piston cylinder, and a piston rod extends out of the pressing piston cylinder and is connected with the inner pressing plate and the outer pressing plate respectively.

Preferably, the height of the inner pressing plate is lower than that of the outer pressing plate, the number of the pressing piston cylinders is two, and the two pressing piston cylinders are symmetrically arranged.

Preferably, a first piston rod is arranged on the compaction piston cylinder, a first sub-rod and a second sub-rod are arranged at the end part of the first piston cylinder, the first sub-rod is connected with the inner pressing plate, and the second sub-rod is connected with the outer pressing plate.

Preferably, the water absorbing filter member is a high resilience sponge particle.

Preferably, the water absorbing filter element is a granular water absorbing element, and the water absorbing filter element is prepared from the following raw materials in parts by mass: polyether polyol: 100-120 parts; isocyanate: 20-30 parts of a solvent; water: 10-15 parts; silicone oil: 3-7 parts; glycerol: 2-5 parts; gas-phase white carbon black: 0.3-0.8 part; urea: 5-10 parts; stannous octoate: 0.5-1.5 parts; formaldehyde: 0.2-1 part; phenol: 0.5-3 parts. This application both can adopt ordinary sponge granule, but discovery in the use, when adopting ordinary sponge granule, because the aquatic in the paddy field contains too much solid particle thing, the sponge granule inefficacy is very fast, will lose the rehabilitation effect very fast, and this application is modified the sponge through adopting isocyanate, formaldehyde, phenol, its live time of improvement that can be great.

Preferably, the polymer obtained is subjected to dicing treatment, then placed into saturated chlorine water for shaping, and then placed into water for washing.

Preferably, the granular water absorbing member is a spherical member, and the diameter of the spherical member is 0.5-2 cm.

Preferably, the water-absorbing filter element is prepared as follows:

stirring polyether polyol, water, silicone oil, glycerol, fumed silica, urea and stannous octoate at 40-60 ℃;

then adding isocyanate, formaldehyde and phenol, heating to 70-90 ℃, and continuing stirring for 1-2 h;

curing and molding under 12-20MPa, and keeping the temperature at 100-130 ℃ for 0.5-2 h.

Preferably, the foaming index is 1.2 to 1.3. This application adopts isocyanate, formaldehyde, phenol to come to modify the sponge after, recycles the chlorine water and stereotypes, and the form on polymer own surface obtains fixedly, and big bubble can be decomposed into little bubble, and solid particle is difficult for permeating inside to make the stability of self stronger, make the graininess absorb water spare no matter be the durability in water or all obtain the improvement of very big degree to solid particle's resistance.

On the other hand, the application also discloses a paddy field water level control method, and the paddy field water meters are arranged: putting a plurality of rice field water viewers into the rice field, and connecting the rice field water viewers to a remote monitoring system;

acquiring a water level signal of the rice field water meter: before each acquisition, water in the inner cavity and the outer cavity is led out by the power assembly, then the power assembly is lifted, the water is led into the inner cavity and the outer cavity, and then a water level signal is acquired;

the water level signal is transmitted into a remote monitoring system, and the remote monitoring system carries out water level monitoring and control through the water level signal.

This application can bring following beneficial effect:

1. the water level measuring device comprises an inner cavity, an outer cavity, a water absorbing filter element, a power assembly, a water absorbing filter element, a water level measuring device and a water level measuring device, wherein the inner cavity and the outer cavity are arranged in a matched mode, so that external water can be filtered through the water absorbing filter element in the outer cavity firstly and then enters the inner cavity, and the overall stability is ensured;

2. the application can adopt common sponge particles, but in the using process, the sponge particles lose efficacy quickly and lose the recovery effect quickly because too many solid particles are contained in water in a paddy field when the common sponge particles are adopted, and the application can greatly improve the available time by synthesizing the modified sponge by adopting isocyanate, formaldehyde and phenol;

3. this application adopts isocyanate, formaldehyde, phenol to come to modify the sponge after, recycles chlorine water and stereotypes, and the form on polymer self surface is fixed for inside difficult the permeating of solid particle, thereby make the stability of self stronger, make the graininess absorb water spare no matter be the durability in aqueous or all obtain the improvement of to a great extent to solid particle's resistance.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic structural view of a water viewer of the present application;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

fig. 3 is a schematic view of a water level control method.

Detailed Description

In order to clearly explain the technical features of the present invention, the present application will be explained in detail by the following embodiments in combination with the accompanying drawings.

In a first embodiment, as shown in fig. 1-2, a paddy field water viewer comprises a cavity 1, a water level measurer 2 is arranged in the cavity 1, and a water level obtaining mechanism is arranged outside the water level measurer 2; the water level acquisition mechanism comprises a water balance cavity 3 for balancing with external water, and a power component for discharging water in the water balance cavity 3 is arranged above the water balance cavity 3; the water balance cavity 3 comprises an inner cavity 4 which is adjacently arranged with the water level measurer 2, an outer cavity 5 which is communicated with external water is arranged outside the inner cavity 4, a water absorbing and filtering piece 6 is arranged in the outer cavity 5, a middle partition plate 7 is arranged between the inner cavity 4 and the outer cavity 5, and a connecting through hole 8 is arranged on the middle partition plate 7. This application adopts the mode that interior cavity 4 and 5 cooperations of outer cavity that two cooperations set up, make outside water can accomplish the filtration through the filter 6 that absorbs water in the outer cavity earlier, then reentrant in interior cavity 4, thereby guarantee holistic stability, this application adopts the filter 6 that absorbs water and the mode that power component cooperation set up to make when the water level measurement in addition, at first utilize power component with the water discharge, then reuse absorbs water and filter 6's buffering and water absorption, realize that the water yield can steadily enter into in interior cavity 4, avoid taking place the delay and the inaccuracy of measuring the water level. The power assembly comprises an outer pressing plate 9 matched with the outer cavity 5 and an inner pressing plate 10 matched with the inner cavity 4, a pressing piston cylinder 11 is further arranged at the top of the cavity 1, and a piston rod extends out of the pressing piston cylinder 11 to be connected with the inner pressing plate 10 and the outer pressing plate 9 respectively. The height of the inner pressing plate 10 is lower than that of the outer pressing plate 9, the number of the pressing piston cylinders 11 is two, and the two pressing piston cylinders 11 are symmetrically arranged. The pressing piston cylinder 11 is provided with a first piston rod 12, the end part of the first piston cylinder is provided with a first sub-rod 13 and a second sub-rod 14, the first sub-rod 13 is connected with the inner pressing plate 10, and the second sub-rod 14 is connected with the outer pressing plate 9. The water absorbing filter piece 6 is made of high resilience sponge particles.

When the device is used, the device is essentially an outdoor monitoring device, the device is fixed in a field by arranging a plurality of support legs 15 at the bottom or binding, compacting the upper part and the like, when the water level needs to be measured, the first piston rod 12 in the compression piston cylinder 11 is utilized to drive the first sub-rod 13 and the second sub-rod 14 to respectively enable the inner pressing plate 10 and the outer pressing plate 9 to be compacted downwards, the water in the water absorption filter element 6 is reversely discharged, firstly, the hysteresis is reduced, the dirt in the device is also discharged, the blockage and the influence on the precision are avoided, then, the first piston rod 12 is lifted, the inner pressing plate 10 and the outer pressing plate 9 are respectively lifted, a certain pressure difference exists below the inner pressing plate 10 and the outer pressing plate 9 due to the slightly high height of the inner pressing plate 10, the external water can rapidly enter a cavity at the lower edge of the pressing plate through the water absorption filter element 6, so that the measurement rate is improved, after the indication to be measured is digitally balanced, a digital reading is then taken either remotely or by in situ observation.

Based on example 1, the applicant finds that the traditional high resilience sponge particles have poor durability and short service time, so that the research is carried out on the alternative scheme of the traditional high resilience sponge particles, and the specific synthesis method of the water absorbing filter element is as follows:

s1, stirring polyether polyol, water, silicone oil, glycerol, fumed silica, urea and stannous octoate at 40-60 ℃;

s2, adding isocyanate, formaldehyde and phenol, heating to 70-90 ℃, and continuing stirring for 1-2 h;

s3, curing and forming under 12-20MPa, and preserving heat for 0.5-2h at the temperature of 100-. The foaming index is 1.2-1.3.

The specific synthesis conditions are shown in Table 2, and the component contents are shown in Table 1, and then the spherical member is obtained by shearing as a water absorbing filter, and the diameter of the spherical member is 0.5-2 cm.

Table 1:

table 2:

then the obtained spherical member is used for testing under the same environment, and the sand content in water is 20-22kg/m³Setting a stirrer at the bottom for stirring, measuring every 5min until the waiting time for the stable measurement parameters exceeds 1min, and recording the total times of measurement; the measurement was then continued until the waiting time exceeded 3min and the total number of measurements was recorded, the data being shown in table 3.

Table 3:

test number	Number of filter material	Times (waiting time 1min)	Times (waiting time 3min)
				1	1	135	478
2	2	151	532
				3	3	140	529
4	4	92	247
				5	5	83	305
6	6	121	425
				7	Common sponge	63	185

It can be seen that, when a common sponge is used, the time required for the reading to be stable is long after a certain number of uses, and therefore, the number of uses is limited in actual production. Adopt the usable number of times of spherical piece of this application almost is the triple of ordinary sponge, adopts fumed silica to promote usable durability greatly, and the closure of the compound great improvement foaming material of formaldehyde phenol then to improved its durability to high sand content water.

In a third embodiment, as shown in fig. 3, a paddy field water level control method includes the steps of:

s301, arranging paddy field water monitors: putting a plurality of rice field water viewers into the rice field, and connecting the rice field water viewers to a remote monitoring system;

s302, acquiring a water level signal of the rice field water meter: before each acquisition, water in the inner cavity and the outer cavity is led out by the power assembly, then the power assembly is lifted, the water is led into the inner cavity and the outer cavity, and then a water level signal is acquired;

and S303, transmitting the water level signal to a remote monitoring system, and monitoring and controlling the water level by the remote monitoring system through the water level signal.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A rice field water viewer is characterized in that: the water level measuring device comprises a cavity, wherein a water level measuring device is arranged in the cavity, and a water level obtaining mechanism is arranged outside the water level measuring device; the water level acquisition mechanism comprises a water balance cavity for balancing with external water, and a power component for discharging water in the water balance cavity is arranged above the water balance cavity; the water balance cavity comprises an inner cavity body which is adjacently arranged with the water level measurer, an outer cavity body which is arranged outside the inner cavity body and communicated with external water is arranged outside the inner cavity body, a water absorption filter piece is arranged in the outer cavity body, an intermediate partition plate is arranged between the inner cavity body and the outer cavity body, and a connecting through hole is arranged on the intermediate partition plate.

2. A rice field water viewer as claimed in claim 1, wherein: the power assembly comprises an outer pressing plate and an inner pressing plate, the outer pressing plate is matched with the outer cavity, the inner pressing plate is matched with the inner cavity, a pressing piston cylinder is further arranged at the top of the cavity, and a piston rod extends out of the pressing piston cylinder and is connected with the inner pressing plate and the outer pressing plate respectively.

3. A rice field water viewer as claimed in claim 2, wherein: the height of the inner pressing plate is lower than that of the outer pressing plate, the number of the pressing piston cylinders is two, and the two pressing piston cylinders are symmetrically arranged.

4. A rice field water viewer as claimed in claim 3, wherein: the compaction piston cylinder is provided with a first piston rod, the end part of the first piston cylinder is provided with a first sub-rod and a second sub-rod, the first sub-rod is connected with the inner pressing plate, and the second sub-rod is connected with the outer pressing plate.

5. A rice field water viewer as claimed in claim 1, wherein: the water absorption filter piece is made of high-resilience sponge particles; the water level measurer is a turning plate water level meter.

6. A rice field water viewer as claimed in claim 1, wherein: the water absorbing filter piece is a granular water absorbing piece and is prepared from the following raw materials in parts by mass: polyether polyol: 100-120 parts; isocyanate: 20-30 parts of a solvent; water: 10-15 parts; silicone oil: 3-7 parts; glycerol: 2-5 parts; gas-phase white carbon black: 0.3-0.8 part; urea: 5-10 parts; stannous octoate: 0.5-1.5 parts; formaldehyde: 0.2-1 part; phenol: 0.5-3 parts.

7. A rice field water viewer according to claim 6, wherein: and (3) cutting the obtained polymer into blocks, putting the polymer blocks into saturated chlorine water for shaping, and then putting the polymer blocks into water for washing.

8. A rice field water viewer according to claim 6, wherein: the granular water absorbing piece is a spherical piece, and the diameter of the spherical piece is 0.5-2 cm.

9. A rice field water viewer according to claim 6, wherein: the water absorbing filter element is prepared in the following way:

curing and molding under 12-20MPa, and keeping the temperature at 100-130 ℃ for 0.5-2h, wherein the foaming index is 1.2-1.3.

10. A paddy water level control method using the paddy water marker as set forth in any one of claims 1 to 9, characterized in that: laying water meters in the rice field: putting a plurality of rice field water viewers into the rice field, and connecting the rice field water viewers to a remote monitoring system;