Device for watering in the greenhouse structures

 

(57) Abstract:

Usage: in the technique of dispensing liquids and automated irrigation facilities in the protected ground. The inventive device for irrigation contains the reservoir 1, the dispenser 5 includes a float 9, the fluid dispenser connected to the spout 5, which introduced the transmitter 8 and the drain tube, consisting of two communicating tubes 10 and 11, the first input of which is connected with the drain shut-off valve 13 controlled through the cable 14 Executive item 16, which responds to the temperature change in the structure, and the output of the second tube with the distribution device, the float 9 sensor 8 is located below the upper inflection point of the pipe 12. During filling of the dispenser 5 liquid line temperature inside the building with the installation temperature operating mode element 16 is draining the prescribed dose of the liquid. The working cycle is repeated under these conditions. 3 C.p. f-crystals, 2 ill., table 1.

The invention relates to agriculture, in particular, to techniques for dosing liquids and automated watering in buildings protected ground.

WPI is stuffy layers, the pipeline connecting the reservoir to the dispenser, the cover-breather installed in the upper part of the tank. This device provides cyclic and automatic irrigation of crops with different height plants, as well as multi-tiered beds, in addition, regulation is achieved Multispeed expiration drops [1]

The disadvantage of this device is a narrow range and low accuracy of the dosing fluid, as well as the functionality in use (irrigation only houseplants).

A device for dispensing a liquid containing tank, located inside the tank and a discharge pipe doses with the valve inlet with the inlet valve, the valve to drain the fluid in the tank and the float sensor with a guiding element, and the container is moveable vertically, the inlet pipe and a discharge pipe connected with the tank, a valve to drain the fluid in the tank is mounted on the tank, and the float sensor with a guiding element installed in the tank and is connected with the inlet valve [2]

This device greatly expanded range of dispensing liquids, but a disadvantage of this device is the lack of Regulus in the ground.

Closest to the technical nature of the device of the invention is an irrigation installation process automation watering plants equal to the irrigation water, including mounted on the frame germinator, scales, sensors metered irrigation, irrigation tubing, solenoid valves controls. Installation is also provided with irrigation reservoir that communicates with irrigation pipes and solenoid valves. The tank is placed a float rod. Sensors metered irrigation made in the form of light sources with photocell installed on different sides of the lever with a counterweight and a perforated float rod, the width of the translucent strip perforation which corresponds to a given irrigation norm [3]

A disadvantage of this device is the difficulty of process control irrigation around the world, as well as the complexity of the equipment, due to the presence of the electronic unit, recorder, electromagnetic valves, a light source and photocell. In addition, for operation of this installation requires a source of electricity, which limits the scope of its application, in particular, in the greenhouse gardeners who do not have grids.

Technical is depending on species and temperature in buildings protected ground.

This object is achieved in that the device for irrigation in buildings protected soil containing reservoir, which is connected through a tee and a dispenser with a dispenser of liquid, the float, wherein the dispenser includes a level gauge and drain tube consisting of two communicating tubes connected by a pipe, the inlet of the first tube is connected with the drain shut-off valve, controlled via the cable actuating element responsive to temperature changes in buildings, and the output of the second tube with dispenser liquid, the float uravneniya is not below the upper inflection point of the pipe, and the body of the dispenser to control the speed of the fluid outflow is connected by a pipe with a tee and gate valve of the tank, in addition, at the end of the second pipe is a pointer doses on a scale attached to the housing of the dispenser.

When this speed control of fluid outflow contains adjustable shut-off valve and the nozzle, filled with moisture-permeable material, changing the time of the doses.

The cable is provided with a locking element attached to the housing of the dispenser to align the axes of symmetry of the drain shut-off valve and cable.

The introduction of speed control fluid outflow allows you to plan your watering time, and set its cyclicity in accordance with the selected dose and the required interval.

In addition, the simplicity and reliability of technical solutions for changing the position of the drain tube height allows the variation of the dose of irrigation according to the selected culture or usable area of the building.

In Fig. 1 is a perspective view of a watering device in buildings protected ground; Fig. 2 the dispenser section.

The watering device includes a tank 1, which is connected through line 2, the first shut-off valve 3, the first tee with 4 feeder 5 and through the second check valve 6 with the input of other structures (consumers). The dispenser 5 includes a housing 7, the sensor 8 in the form of a ball valve connected to the float 9 and the drain tube, consisting of two tubes 10 and 11, connected by a flexible pipe 12. When this float is not below the upper inflection point of the pipe 12.

At the inlet of the first tube 10 (drain hole) installed drain check valve 13, which is connected through the cable 14, passed through the latch 15 with the Executive item 16, reacting to changes in timeout through the packing 18 in the bottom of the casing 7 of the dispenser to the outside and is connected by a pipe 19 through the comb 20 with a fluid dispenser, consisting of a perforated or provided with a nozzle pipe 21. In this case, the outer end of the second tube 11 provided with a pointer doses 22 on the scale 23, fixed to the body 7 of the dispenser 5. The input of the metering device 5 is connected with the pipe 2 through the speed control leakage of the fluid 24, which includes an adjustable shut-off valve 25 and nozzle 26 filled with a moisture-permeable material 27, altering the rate of fluid outflow. As the moisture-permeable material structure can be used loose, porous, fibrous and other types of materials.

Device for irrigation works in the following way.

Filling water tank 1 liquid (water) is supplied from the water source (piped water, wells and others) to a certain level. The required water volume V is determined by the following relationship

V=g, S, T, (1) where g is the maximum specific consumption;

S effective area of the facility;

T the period of irrigation.

If we take the specific water consumption for vegetable crops 5 l/sq m per day, for a greenhouse with a usable area of 10-13 square meters with a period of watering 3 days will require capacity respectively 150-225 HP

The initial state of the main elements: the dispenser 5 is not Napo is apory valve 3, which roughly sets the speed (time) receipts of fluid through the pipeline 2 and tee 4 in the dispenser 5. A more accurate adjustment of the speed Vnfilling liquid dispenser 5 is provided with a speed control knob 24, which is determined by calculation according to the formula

vn= k

(2) where the coefficient expiration, depending on the shape of the hole, in practice, is equal to 0.62 to 0.97;

k the permeability of the material;

h the height of the liquid level in the tank, m

The maximum level of liquid in the dispenser 5 is limited uravneniya 8 float 9.

The time t over which flows the volume of liquid equal to the dose calculated by the formula below, and then experimentally adjusted depending on experience

t

(3) where V is the volume of liquid flowing through the selected section of the pipe, cubic meters,

And the cross-sectional area of the pipe, m2.

Dose irrigation are selected depending on the type of crops (tomato, cucumber, green) or the amount of inventory space structures is established using the second (measured) tube 11 with an elastic pipe 12 and is fixed in a suitable position Salnikov seal 18. The control exhibited dose watering OS the bones from the dispenser 5 can occur when the level H1defined by the upper inflection point of the pipe 12 under the action of its own weight, however, when the irrigation control temperature inside the building it is necessary to provide the opening of the drain shut-off valve 13 is driven by hydraulic mechanism or transoms (see Fig. 2).

Thus the operating mode of the device is the coincidence of two events: the dispenser 3 is filled by the level of the prescribed dose of liquid N2and given permission for irrigation from the element 16 (see table). Irrigation control temperature setting allows you to change the frequency of watering and under adverse weather conditions (cold, cloudy) hold regular watering until such time as the temperature in the greenhouse will not correspond to the setpoint temperature, providing the operating mode of thermal-hydraulic mechanism.

After draining the dose of liquid it will go through the pipe 19, the comb 20 and the liquid distribution to the plants, bravamar 8 will be allowed to receive another dose from the reservoir 1, closes the drain hole shut-off valve 13 when the temperature decreases or remains open, if the temperature in the structure corresponds to the setpoint and the duty cycle for irrigation, adjust dose watering depending on the type of crops (tomato, cucumber, green) and more accurately respond to changes in temperature inside the building, providing the most favorable mode of irrigation depending on external environmental conditions, which increases crop yields and automates the process of irrigation at the programmed time, freeing gardener from hard labour and the need for a permanent presence in the garden. In addition, the proposed design, which is based on the mechanical components and elements, is reliable in operation, simple in design and affordable for the consumer.

1. DEVICE FOR WATERING the PLANTS PROTECTED GROUND, including the tank, which is connected through a tee and a dispenser with a fluid dispenser, wherein the dispenser is made in the form housed in the casing of the level gauge and drain tube consisting of two communicating through a flexible curved inlet tubes, a first input of which is equipped with a drain valve, and the output of the second communicated with the fluid dispenser while the dispenser is connected to the reservoir through the speed control leakage of the fluid, and a float level gauge is not below the upper point of the market and managing through the cable drain valve of the dispenser.

2. The device under item 1, characterized in that the speed control fluid outflow includes adjustable shut-off valve and the nozzle, filled with moisture-permeable material, changing the time of the doses.

3. The device according to p. 1, wherein the cable is provided with a locking element attached to the housing of the dispenser to align the axes of symmetry of the drain shut-off valve and cable.

4. The device under item 1, characterized in that at the end of the second tube of the dispenser is a pointer doses on the scale attached to the housing of the dispenser.

 

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SUBSTANCE: apparatus has accumulating vessel with bottom opening closed with valve, auxiliary vessel, two float valves, one of float valves being adapted for supplying of water into accumulating vessel and other float valve being adapted for cutting-off water supply. Valve floats are arranged in auxiliary vessel disposed below accumulating vessel bottom and connected by means of flexible pipes with hermetically sealed vessels provided with porous bottoms deepened into soil. When water is sucked through porous bottoms into soil, water level in auxiliary vessel is lowered and float valves are opened, with water being delivered into accumulating vessel through one of float valves. When predetermined water level is reached, valve for discharge opening is opened, water is supplied into low-pressure irrigation system and is further delivered through second float valve into auxiliary vessel. As a result, water level in auxiliary vessel is increased to cut-off water supply into accumulating vessel.

EFFECT: increased efficiency and simplified construction.

2 dwg

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