Siphon type automatic hydraulic device

FIELD: construction.

SUBSTANCE: invention relates to hydraulic engineering and can be used primarily in automatic rice irrigation systems. The siphon type hydraulic automatic device consists of a mounting attachment 1 made from a base 2 and pipes rigidly and strictly vertically mounted on it. In pipes 3 there is a crest on which a rod 5, fitted with floats 6, is rigidly attached. The rod is made composite so that, when the submersion layer in the level basin rises, the float does not lead to forced launch of the automatic hydraulic device. Its parts are joined by a threaded sleeve which allows for fast change (within necessary limits) of the length of the rod 5. Rigidity of the entire connection is retained and coaxiality of the rod 5 is observed. In the top part of the crest there is an air admission valve 7. The automatic hydraulic device is connected to level basin water outlet through a sleeve 8, and the water level in the level basin is set by a guide plate 9.

EFFECT: use of the automatic hydraulic device increases reliability of operation, rapidness and accuracy of regulation, improves regulation of the submersion layer of the level basin.

3 dwg

 

The invention relates to the field of hydraulic engineering construction and can be used, primarily for rice irrigation systems to automate the irrigation of rice.

A device for regulating the water level in the pools of hydraulic structures, including the siphon discharge tube with intake fitting, two Electromechanical switch, float, servo mechanism and trip lever (see, for example, A.S. No. 1674069, IB No. 32, 1991, s).

The disadvantage of this device is the design complexity, low reliability due to the presence of a large number of moving parts and connections.

A device for automatic water level control containing water outlet of the cylindrical shutter is equipped with a float-counterweight, float level sensor downstream placed in the chamber divided by a partition into two cavities, the upper of which is communicated through the hole in her body with top water and hydraulically connected with balance capacity with discharge through the check valve distribution chambers communicated through the level sensor of the upstream, a gate connected to the housing of the balance capacity through troubleshoo touch, and float level sensor downstream located at the bottom of the cavity chamber and connected with valve stem is placed in the upper cavity chamber with the possibility of overlapping holes in the camera body (see, for example, A.S. No. 1672419, IB No. 31, 1991, p.194).

The drawbacks are: the complexity and high cost of manufacture, the decrease in throughput of the pipeline due to the presence of large pressure losses in the chamber with the float, low reliability in the sprinklers with floating debris (weeds, algae).

A device for regulating the water level in communicating reservoirs, selected as a prototype, because it is the closest device on the principle of regulation and design. A device for controlling the water level in communicating reservoirs includes a stationary conduit between them, the output of which is in the downstream set of nozzles with a float, which is made in the form of a siphon with a fixed knee and a movable comb, which made the hole to install a check valve to break the vacuum, over which is placed a movable strap on hard stands, and the float is provided with a sleeve with a sliding rod, the contact associated with the bottom of the rolling crest of the siphon, and a check valve is installed with the possibility of contact with the strap placed at a predetermined rate (see, for example, A.S. No. 2022318, BI No. 20, 1994, s).

The disadvantages of the device for controlling the water level in communicating reservoirs are:

- the design complexity;

- the unreliability of the device TC. the crest and shield with the float, being pin connected, do not provide simultaneous actuation of the device, there is a mismatch of work that leads to stopping of the machine; the placement of the float on the stem leads to the buildup of the comb and stuck it in the pipes for the transmission of large volumes of water, and as a result, malfunction of the machine.

The objective of the invention is to increase reliability gidroavtomatika, increasing the efficiency of irrigation water use by improving the efficiency and accuracy of regulation.

To achieve the objectives of the rod is provided with a second float, the console is made in the form of the base is rigidly secured on the pipe installed vertically, the movable comb, stem and floats rigidly connected with each other and represent a single element of design, and the floats are placed on both sides of the stem.

1 shows a schematic diagram of gidroavtomatika siphon type.

Gidravlika siphon type consists of consoles 1 made of a base 2 and is rigidly secured on the nozzle 3, the pre-installed vertically. The nozzle 3 has a ridge 4 is rigidly secured on the shaft 5, is equipped with floats 6. In order waterer with increasing layer flooding in the receipt not resorted prinuditelnomu launch gidroavtomatika, rod made of composite. Parts of it are connected by a threaded coupling, which allows you to quickly modify (to the extent necessary) the length of the rod 5. This maintains the rigidity of the whole link and followed the alignment of the rod 5. In the upper part of the ridge has a valve to break the vacuum 7. Gidravlika connected with a cheque outlet using the coupling 8, and the water level in the check set restrictive strap 9.

Gidravlika works as follows: before flooding rice cheque restrictive bar 9 is fixed at the level of the working horizon of water in the fill plus the height of the pipe diameter of the ridge 4 and the movable comb 4 is below the height of a given layer of water in check.

After the flood fill to operating level water out through cheque outlet enters the ridge 4. When a layer of water covers the output of the console 1 in the cavity of the ridge 4 is formed by vacuum and machine works full cross-section. This uses all the current pressure.

The water level in the check increases. Together with the ascent of floats 6 ascend the stem 5 and the ridge 4. When the layer of water in the check reaches a predetermined height, the valve 7 in contact with the bounding plate 9, is opened and is the disruption of the vacuum flow of water stops.

Using gidroavtomatika siphon type allows to increase reliability, the operator what you want to make and the accuracy of its regulation, to improve the regulation layer flooding the check.

Comparative analysis of novelty
The placeholderThe proposed device
1. ConsoleThe console is made in the form of the base is rigidly secured on the pipe installed vertically, the movable comb, stem and floats rigidly connected with each other and represent a single element of design
2. Stem with one floatThe rod is equipped with two floats
3. NoThe floats are placed on both sides of the stem

Analysis of the essential features that create a positive effect
Signs of the claimed technical solutionNew properties acquired through the use of signs technical solutionsBenefits
The rod comes with a second float, the console is made in the form of a base with a tightly sacral nimi on it, elbows, installed vertically, the movable comb, stem and floats rigidly connected with each other and represent a single element of design, and the floats are placed on both sides of the stemThe second float provides the balance of the ridge during the working process, because when he moved to the nozzles (changing water layer), is not skewed, and as a result, clogging and breakage gidroavtomatika. Eliminates the inconsistent operation of the machine. Excluded swinging comb-siphon and sticking it in the pipes when the siphon large amounts of water.The claimed technical solution allows to increase the reliability coefficient of gidroavtomatika, because the second float makes the construction of the equilibrium, and the synchronization of the movement of the comb relative to changes in water level in the check happens at the same time. This allows to precisely observe the water regime for rice plants and, consequently, increase productivity, reduce irrigation water losses and improve the utilization rate of the earth

Gidravlika siphon type, comprising a prefix and a movable comb, interconnected, a rod with a float, the contact associated with the bottom of the siphon, characterized in that the rod comes with a second float, the console is made in the form of a Foundation, as the TKO fixed nozzles, installed vertically, the movable comb, stem and floats rigidly connected with each other and represent a single element of design, and the floats are placed on both sides of the stem.



 

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