SU480381A1 - Nutrient solution dispenser - Google Patents

Description

The invention relates to irrigation technology and is used in irrigation and humidification systems of vegetation in the case of remote distribution and the dosed supply of nutrient solution to objects of consumption.

The known nutrient solution distributors, comprising a housing with inlet and outlet openings, a spring-loaded spool mounted in the housing, a mechanical control relay communicating with the spool and a pump switch, and a metering device are structurally complex.

The purpose of the invention is to simplify the design of the distributor. This is achieved by performing a mechanical control relay in the form of a pair of double-arm levers connected by a rod mounted parallel to the housing and having rods interacting respectively with the lower end of the spool, the second with the upper and with the pump switch located in the upper part of the housing.

The modes of operation of the distributor are regulated by a dosing device, made in the form of a throttle mounted in the upper part of the body, consisting of a pressure regulating needle and a channel that connects the oversampling cavity to the atmosphere.

FIG. 1 shows a longitudinal section of the distributor with the upper location of the spool; in fig. 2 - the same - with the lower location of the spool; in fig. 3 is a cross section along A-A in FIG. 2

The distributor is made of a hollow body 1 with a lid 2 and a spring-loaded spool 3. The body 1 has an opening 4 in the bottom for introducing nutrient solution into

a podzol chamber and aperture b for the sequential supply of nutrient solution to the objects of consumption. The holes b are located in the same plane along the periphery of the housing 1 (see FIG. 3) and alternately

when turning the spool 3, they are combined with its groove in, ensuring the reliability of the continuous supply of the nutrient solution to each of the sections, and the channel r, connecting the podzolotnik chamber 5 with the holes b.

When the slide 3 moves upwards, an airbag is created in the upper cavity B. This phenomenon is used to regulate the dosage of the nutrient solution in the section. In the upper part of the housing 1 there is installed a dosing device, made in the form of throttles 6, consisting of a needle 7 for controlling the pressure of the medium, equipped with an indicator 8 n fixed on a scale 9, and a channel d, indicating the oversoldering nOviocTb

with the atmosphere (see Fig. 2).

The distributor is equipped with a device 10 for rotating the spool 3 and alternately aligning its groove in with the holes b, as well as a mechanical relay that has a pump stop 11, consisting of the lower 12 and top 13 parts, and a pump start 14 connected by a pair two shoulders 15 and 16, connected by shtanga 17, mounted parallel to housing 1. In this case, the rods 14 and I, respectively, interact one with the lower end of the spool, the other with its lower part 12 with the upper and upper parts 13 with the pump switch 18, in the upper part of the case.

When the pump is turned off, the spool 3 is in the upper position and is lowered under the action of the compressed spring 19. The automatic shut-off of the distributor is carried out in the process of turning the spool 3 and the action of its protrusion 20 moving along the annular groove e on the microswitch 21.

Works distributor nutrient solution as follows.

The pump feeds the nutrient solution through the hole a into the distributor housing 1, which, overcoming the elasticity of the spring 19 and the air pressure in the upper cavity of the spool chamber, will raise the spool 3 until its groove in one of the holes b of the housing 1 aligns. the solution will go through the pipeline to one of the objects of consumption; moreover, the nutrient solution will be supplied until the valve in the process of lifting through the upper part 13 of the pump stop 11 shaft does not turn off through the switch 18 electric pump. After switching off the electropump, the pressure in the podzol-shaped chamber drops. The spool under the action of the spring 19 moves to the initial (bottom) polishing and through the trigger 14

an electric pump, a pair of double-arm levers 15 and 16, and a rod 17 of the shields 11 is placed in the lower extreme position and the electric pump is switched on again. Then the device

10 rotates the spool 3 to align its groove in with the next hole b of the housing, and the process of supplying water to the consumption object repeats in the order described. After supplying the nutrient solution to the last object of consumption and when lowering the spool 3, the electric pump and the whole system are turned off, which is achieved by the action of the protrusion 20 of the spool 3 on the microswitch 21.

the operation is carried out by pressing the button on the control panel or using a software time relay.

Subject invention

Claims (2)

1. A nutrient solution distributor, including a housing with inlet and outlet openings, a spring-loaded spool mounted in the housing, a mechanical control relay that communicates with the spool and a pump switch, and a metering device, characterized in that, in order to simplify the design, the mechanical the control relay is made in the form of a pair of double-arm levers connected by a rod mounted parallel to the housing and having plugs that interact respectively with one of the lower end of the slide valve, the other with the upper and with the pump switch located in the upper part of the housing. 2. The distributor according to claim 1, characterized in that the dispensing device is designed as mounted at the top parts of the body of the throttles, consisting of a needle for controlling the pressure of the medium and a channel that communicates the supraholding cavity with the atmosphere. sixteen 1