CN215454496U

CN215454496U - Irrigation and drainage control system

Info

Publication number: CN215454496U
Application number: CN202121942528.2U
Authority: CN
Inventors: 张雯叶; 杨星; 张耀华; 侯苗; 陈新峰; 王冬梅; 楚雷刚; 赵亲文; 韦群; 王志寰; 鞠燕; 范晨媛; 周玉兰; 孙静; 葛洋
Original assignee: JIANGSU WATER CONSERVANCY SCIENTIFIC RESEARCH INSTITUTE
Current assignee: JIANGSU WATER CONSERVANCY SCIENTIFIC RESEARCH INSTITUTE
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-01-11
Anticipated expiration: 2031-08-18

Abstract

The utility model discloses a irrigation and drainage control system, which comprises: a water source device; the soil layer and the filter layer are sequentially arranged in the measuring cylinder from top to bottom; the water level monitor is arranged in the soil layer; a first water inlet pipe is connected between the measuring cylinder and the water source device, and the water outlet of the first water inlet pipe is positioned in the filter layer; the measuring cylinder is connected with a water outlet pipe, and a water inlet of the water outlet pipe is arranged in the filter layer; the first water inlet pipe is provided with a water inlet control valve, and the water outlet pipe is provided with a water outlet control valve. The method mainly comprises the steps that the lowest water level and the highest water level suitable for crop growth are set in different growth periods of crops, and when the soil water level is lower than the lowest water level, irrigation is carried out in time; and when the water level of the soil is higher than the highest water level, draining water in time. Through the accurate control to water level, water yield, realize the crop drainage of in time irrigating. The irrigation and drainage control system can be researched by setting different water level ranges and combining physical and chemical indexes of crops to obtain the water level change range which is most suitable for the growth of the crops.

Description

Irrigation and drainage control system

Technical Field

The embodiment of the utility model relates to the field of farmland irrigation, in particular to a irrigation and drainage control system.

Background

Moisture is a key factor for guaranteeing the normal growth of crops, proper soil moisture is critical to the growth of the crops, and too little or too much soil moisture can damage the normal physiological mechanism of the crops. The water level is monitored manually to irrigate in the growth process of traditional crops more, or only irrigation and drainage are carried out by depending on experience, and these irrigation and drainage modes are complicated to operate, and are time-consuming and labor-consuming, if the drainage of watering in time fails, then moisture stress and waterlogging stress are easily formed, thereby causing crop reduction. Therefore, how to control proper moisture conditions and ensure the quality of crops becomes an important topic of many researchers.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a irrigation and drainage control system to solve the problem that soil moisture is difficult to control in the prior art.

In order to achieve the above object, an embodiment of the present invention provides the following:

in one aspect of an embodiment of the present invention, there is provided a irrigation and drainage control system including:

a water source device;

the soil layer and the filter layer are sequentially arranged in the measuring cylinder from top to bottom;

the water level monitor is arranged in the soil layer and used for monitoring the water level in the measuring cylinder;

a first water inlet pipe is connected between the measuring cylinder and the water source device, and a water outlet of the first water inlet pipe is positioned in the filter layer; the measuring cylinder is connected with a water outlet pipe, and a water inlet of the water outlet pipe is arranged in the filter layer; and a water inlet control valve is arranged on the first water inlet pipe, and a water outlet control valve is arranged on the water outlet pipe.

Further, the filter layer is a reverse filter layer.

Further, the soil layer includes a topsoil layer, a subsoil layer and a subsoil layer.

Further, the water level monitor is a drop-in type liquid level meter, and the liquid level meter is immersed in a soil layer in the measuring cylinder.

Further, the irrigation and drainage control system further comprises:

and the controller is electrically connected with the liquid level meter and is used for acquiring a water level numerical value in soil and setting a water level upper limit value and a water level lower limit value.

The alarm is electrically connected with the controller;

the controller is preset with a water level upper limit value and a water level lower limit value, and controls the alarm to give an alarm when monitoring that the water level in the measuring cylinder exceeds or is lower than a limit water level.

Further, the irrigation and drainage control system further comprises:

the alarm and the controller are respectively arranged on the bracket.

Further, the water source device is connected with a second water inlet pipe.

The embodiment of the utility model has the following advantages:

the embodiment of the utility model discloses a irrigation and drainage control system which can realize timely irrigation and drainage of crops by accurately controlling water level and water quantity. The method mainly comprises the steps that the lowest water level and the highest water level suitable for crop growth are set in different growth periods of crops, and when the soil water level is lower than the lowest water level, irrigation is carried out in time; and when the water level of the soil is higher than the highest water level, draining water in time. The irrigation and drainage control system can be researched by setting different water level ranges and combining physical and chemical indexes of crops to obtain the water level change range which is most suitable for the growth of the crops.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

Fig. 1 is a schematic front structural diagram of a irrigation and drainage control device according to an embodiment of the present invention;

fig. 2 is a schematic top view of a irrigation and drainage control device according to an embodiment of the present invention.

In the figure: 10-a water source device, 11-a second water inlet pipe, 20-a measuring cylinder, 21-a filter layer, 22-a soil layer, 23-a first water inlet pipe, 24-a water outlet pipe, 31-a water level monitor, 32-a controller, 33-an alarm and 34-a support.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the utility model will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the utility model and that it is not intended to limit the utility model to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship may be made without substantial changes in the technical content.

Examples

Referring to fig. 1 and 2, an embodiment of the present invention provides a irrigation and drainage control system, including: water source device 10, measuring cylinder 20 and water level monitor 31.

Specifically, a soil layer 22 and a filter layer 21 are sequentially arranged in the measuring cylinder 20 from top to bottom, and the filter layer 21 is used for filtering impurities in water entering the measuring cylinder 20 or filtering impurities in water flowing out of the measuring cylinder 20. A water level monitor 31 is provided in the soil layer 22 for monitoring the water level in the measuring cylinder 20. Wherein, be connected with first inlet tube 23 between survey section of thick bamboo 20 and water source device 10, the delivery port of first inlet tube 23 is located the filter layer 21, and survey section of thick bamboo 20 is connected with outlet pipe 24, and the water inlet of outlet pipe 24 sets up in filter layer 21. The first water inlet pipe 23 is provided with a water inlet control valve, and the water outlet pipe 24 is provided with a water outlet control valve. The regulation of the water level in the measuring cylinder 20 is realized by regulating the water inlet control valve and the water outlet control valve.

In some embodiments of the utility model, the effective area of the horizontal cross-section of the cylinder 20 is set to 0.64m²The height is set to be 1.8m, and the device is used for simulating field experiments and preventing the growth of crops from being limited. The bottom of the measuring cylinder 20 is provided with an inverted filter layer, the inverted filter layer is set to be 50cm, two water guide pipes, namely a first water inlet pipe 23 and a water outlet pipe 24 are transversely arranged in the inverted filter layer, water meters are respectively arranged on the pipes, and one end of each water guide pipe extends out of the measuring cylinder and is respectively connected with a drain valve and a water inlet device. And a soil layer 22 is laid on the inverted filter layer, the height of the soil layer 22 is set to be 1m, and the soil layer comprises a surface soil layer, a core soil layer and a small amount of bottom soil layers, so that the crops can be guaranteed to be completely rooted and grow normally.

In an embodiment of the utility model, the filter layer 21 is a reverse filter layer. As known to those skilled in the art, the reverse filter layer is also called a reverse filter bag, and refers to a graded gravel layer with a grain size from fine to coarse along the water flow direction, which is laid at the water inlet of a large-mouth well or an infiltration canal. The reverse filtering layer is made of 2-4 layers of sand, gravel or pebble with different particle sizes, the particles are gradually increased along the direction of water flow, and the particles of any layer are not allowed to pass through the pores of the adjacent thicker layer. The particles in the same layer cannot move relatively. After the inverted filter layer is arranged, the seepage water is taken away from the soil in the dam body or the foundation when flowing out, so that piping and soil flowing can be prevented. The reverse filter layer is usually arranged on a dam or a permeable foundation built by materials such as earth and stones, and is also commonly used for treating dangerous situations such as piping, soil flowing and the like in flood prevention.

As shown in fig. 1, the water level monitor 31 is a drop-in level gauge that is submerged in the soil layer 22 inside the measuring cylinder 20.

As shown in fig. 1, the irrigation and drainage control system of the present invention further includes: a controller 32 and an alarm 33. Wherein the controller 32 is electrically connected to the liquid level meter for obtaining a measurement value of the liquid level meter. The alarm 33 is electrically connected to the controller 32. The controller 32 is preset with a water level upper limit value and a water level lower limit value, and when the controller 32 monitors that the water level in the measuring cylinder 20 exceeds or is lower than the limit water level, the controller 33 is controlled to give an alarm.

As shown in fig. 1 and 2, the irrigation and drainage control system further includes: a bracket 34. The alarm 33 and the controller 32 are respectively arranged on the bracket 34.

In some embodiments of the utility model, the control system comprises a water level monitoring alarm device. It comprises an immersion level gauge, a controller 32, a control gauge for displaying readings and an alarm 33. The three instruments are held by a bracket 34. optionally, the bracket 34 extends partially into the soil layer 22 and the level gauge is held in the portion of the bracket 34 extending into the soil layer 22. Wherein, the input level gauge is submerged in the soil inside the measuring cylinder for monitoring the water level, the control instrument reads the water level and sets the upper limit and the lower limit of the water level, and the alarm 33 is started when the water level exceeds or is lower than the limit water level. After the alarm 33 is started, the water inlet control valve is manually closed, and the water outlet control valve is adjusted if necessary, so that the water level in the measuring cylinder 20 is kept in a proper range.

As shown in fig. 1, a second water inlet pipe 11 is connected to the water supply device 10. Optionally, the water source device 10 is a water tower, and the water tower is provided with a water inlet, i.e. connected to the second water inlet pipe 11, so as to ensure that the water tower can continuously supply water. Further, a single water tower may supply multiple cartridges 20, facilitating repeated and multi-process testing. The periphery of the water tower is respectively connected with water pipes, and each water pipe is provided with a water inlet valve and a water meter. And controlling the filling and discharging of the single measuring cylinder 20 in time according to the water level change.

The prior art can only monitor water level change, cannot be combined with crop planting, and has complex operation, time consumption and labor consumption. The technical scheme of the utility model combines irrigation and drainage technology and actual irrigation requirements of crops on the basis of water level monitoring technology, and has the advantages of time saving, labor saving, high efficiency, accuracy and the like. Carry out water level monitoring and notice through input level gauge, control instrument and alarm device, pass through water pipe control business turn over water, realized that the crop is accurate irritates row, effectively prevented because of the crop growth change and the output decline that insufficient or moisture too much arouses of supplying water.

Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.

Claims

1. A irrigation and drainage control system, comprising:

a water source device (10);

the soil-measuring cylinder (20) is internally provided with a soil layer (22) and a filtering layer (21) from top to bottom in sequence;

a water level monitor (31), said water level monitor (31) being disposed within said soil layer (22) for monitoring the water level within said measuring cylinder (20);

a first water inlet pipe (23) is connected between the measuring cylinder (20) and the water source device (10), and a water outlet of the first water inlet pipe (23) is positioned in the filter layer (21); the measuring cylinder (20) is connected with a water outlet pipe (24), and a water inlet of the water outlet pipe (24) is arranged in the filter layer (21); the first water inlet pipe (23) is provided with a water inlet control valve, and the water outlet pipe (24) is provided with a water outlet control valve.

2. The irrigation and drainage control system of claim 1,

the filter layer (21) is an inverted filter layer.

3. The irrigation and drainage control system of claim 1,

the soil layer (22) includes a topsoil layer, a subsoil layer and a subsoil layer.

4. The irrigation and drainage control system of claim 1,

the water level monitor (31) is a drop-in level gauge which is submerged in the soil layer (22) inside the measuring cylinder (20).

5. The irrigation and drainage control system of claim 4, further comprising:

a controller (32) electrically connected to the level gauge for obtaining a measurement value of the level gauge; an alarm (33) electrically connected to the controller (32);

the controller (32) is preset with a water level upper limit value and a water level lower limit value, and when the controller (32) monitors that the water level in the measuring cylinder (20) exceeds or is lower than a limit water level, the controller controls the alarm (33) to alarm.

6. The irrigation and drainage control system of claim 5, further comprising:

the alarm (33) and the controller (32) are respectively arranged on the support (34).

7. The irrigation and drainage control system of claim 1,

the water source device (10) is connected with a second water inlet pipe (11) to ensure irrigation water source.