SU801812A1 - Device for automatic control of watering conditions - Google Patents

Description

one

 The invention relates to agriculture and can be used in irrigated agriculture for the automation of discrete irrigation of agricultural crops.

A device for determining the irrigation time is known, performed on a relative evaporation sensor.

The disadvantage of this device is the impossibility of working out the issue of various irrigation norms on the field and the need for manual water charging of the relative evaporation sensor after kg of irrigation.

It is also known a device for automatic control of the irrigation mode / including a relative evaporation sensor, a regulating tank and a shut-off element installed in the supply line jj2j.

The disadvantage of the known device is the impossibility of working out and feeding into the irrigation network various irrigation norms of varying volume, which change during the growing season. In addition, irrigation discreteness is not provided due to the fact that a slight change in the level of water in the evaporator will cause the device to deplete and lead to almost constant water supply to the irrigation system with small norms.

The purpose of the invention is to provide an automatic discrete feeding to the field of predetermined volumes of irrigation holes changing during the growing season.

This is achieved by the fact that the device is equipped with an irrigation standard setter with a software board, and the regulating capacity is made in the form of a measuring vessel with a float device connected to the irrigation rate setter, and is hydraulically connected to the supply pipe and relative evaporation sensor, as well as the program board of the irrigation norm unit is made with the possibility of horizontal movement and is provided with a shear of irrigation norms with limiters according to the number of irrigations; In addition, the regulating capacitance is connected to the relative evaporation sensor by means of a siphon and a flexible tube mounted on a float device.

The drawing shows a device for automatically controlling the irrigation regime.

The device for automatic control of the spray mode contains a regulating tank 1 with an adjustable opening at the bottom 2 and hydraulically connected by a tube 3 with an irrigation pipe and with a sensor 4 of relative evaporation, equipped with contacts 5 and 6 by means of a flexible tube 7 and a siphon 8 mounted in the float cavity 9 float device ,. In the upper part of the float 9, the rod 10 is vertically fixed, which interacts with its upper end with one of the restraints 11 mounted on the software board 12 of the irrigation standards setter, and the protrusion 13 with the pusher 14 of the shifting mechanism 15 of the software feeder 12 of the gauge 16 norms of irrigation and retainer 17. On the side wall of the tank 1 are shelves 18.

The device works as follows.

Before the first irrigation, the sensor 4 is filled with water. When a specified volume of water evaporates from sensor 4, which will correspond to the achievement of soil moisture in the field of a pre-irrigation value, contacts 5 and 6 are closed and the shut-off organ receives a signal to supply water through the irrigation pipeline to the field. At the same time, water through tube 3 will flow into regulating tank 1. According to the difference in water flow, flow through tube 3 into regulating tank 1 and flowing out of it from the adjustable hole at the bottom 2, it corresponds to the duration of irrigation and filling time of the regulating tank 1 to the top of the siphon 8, which is mounted in the cavity of the float 9, which pops up as the regulating tank 1 is filled. On the upper part of the float 9 a rod 10 is vertically fixed, the upper end of which limits the course of the float 9, abutted against Din of the limiters 11 installed on the software board 12 of the setter of irrigation standards. After floating the float 9 and fixing it in the upper position of the rod 10, water continues to flow through pipe 3 into the regulating tank 1 and, having reached the top of the siphon's knee 8, it enters the sensor 4. with respect to relative evaporation through the flexible tube 7 and fills it. Under the action of the weight of the water, the sensor 4 descends on the elastic platform and opens contacts 5 and 6. The water supply to the field and to the regulator tank 1 will stop. Water from the tank 1 will flow out onto the field through an adjustable opening at the bottom 2, the float 9 will lower and the protrusion 13 through the pusher 14 will act on the permutation mechanism 15, the software 12 of the irrigation norm setter.

which is rearranged by one step and fixed by latch 17. A new limiter 11 is fixed above the rod 10, fixed at the level of the next irrigation rate, 5 on a scale of 16 irrigation norms. The downward travel of the float 9 is limited by the shelves 18 located on the side wall of the regulating tank 1. Thus, after irrigation, the sensor 4

relative evaporation is automatically filled with water and is ready for working out the next inter-irrigation period, and the empty regulating tank 1 is ready for working out of the irrigation rate surveyed by the next limiter 11.

This device provides an automatic signal at the start of irrigation, the testing of changing

 vegetation period)); watering norms, turning off the water supply in the field, thereby ensuring the automatic implementation of the irrigation regime of agricultural plants. Behind

5 due to compliance with the norms of irrigation and supplying them in the optimal time for plants, the yield of agricultural crops is increased by 10%, the loss of irrigation water is reduced by

Q 15-20%; labor productivity during watering increases by 30%.

Claims (3)

1. A device for automatic control of the irrigation regime, including a relative evaporation sensor, an adjustable tank, and a stop valve installed in the inlet the pipeline, which differs from the fact that, in order to provide an automatic discrete supply to the field of specified volumes of irrigation rates, the change to cix during the growing season, The device is equipped with an irrigation standard setter with a software board, and the regulating tank is made in the form of a measuring vessel, with a float device connected to the irrigation rate setter, and is hydraulically connected to the supply pipe and relative evaporation sensor. 2. The device according to claim 1, of which it is the fact that the software master of the irrigation norm is implemented with the possibility of horizontal movement and is equipped with a irrigation norm with a limiter of Aislu watering. 3. The device according to claim 1, characterized in that the regulating capacitance is connected to the relative evaporation sensor by siphon and flexible tubing installed on the float device .. Sources of information taken into account in the examination 1. Author's certificate CCCI№ 345904, cl .- A 01 C 25/16. 2. USSR author's certificate number 480375, cl. A 01 C 25/16, 1975. / 2