Automated cheque outlet

 

The invention relates to the field of hydraulic engineering and can be used to maintain a given level checks in rice irrigation systems. Automated cheque outlet consists of inlet pipe 1 with the water outlet hole 2 and foundations 3 facilities. On the water outlet hole 2 has a shutter 4, consisting of three sites 5, rigidly and angle connected with each other. The shutter 4 is installed on the horizontal axis 6 of rotation. The controller includes a partition wall 7, is stationary in the wall 3 of the building. Above posted by shutter control chamber 8 of the elastic shell. The control chamber 8 is closed by the bottom of the downstream wall and communicated with the lower downstream channel 9, and upper tail - channel 10. Channel 10 is made in the foundations of 3 structures, and channel 9 in the partition 7. Channel 9 has a valve 11 which is connected by a telescopic system with 12 sensor 13 level, which is mounted on a telescopic system 12 by a clamp 14. The inlet pipe 1 in the zone of contact with the stopper has a bevel 30-60. The level sensor consists of an inner 17 part with limiter and external 15 parts. With this design increases the speed of closing of the shutter increases le=" page-break-before:always;">

The invention relates to the field of hydraulic engineering and can be used to maintain a given level checks in rice irrigation systems.

A device for maintaining the level in the fields of irrigation systems (ed. St. No. 1080125, 1983) containing the outlet, set the shutter is made in the form of rolling glass mounted thereon a cylindrical tank having inlet and outlet, the latter of which is placed a valve associated with the float contains a cylindrical float chamber mounted on the movable glass and placed in a regulated downstream, while the cylindrical container is located above the water level, and a valve connected with one of the arms of the lever, mounted on the axis of rotation, mounted on a cylindrical container, and a hinge associated with other shoulder with the rod, installed float restrict vertical movement along the rod. The device for maintaining the level in the fields of irrigation systems work efficiently at low hydraulic gradients, is not subject to clogging and is easy to implement. The main drawback is the intensity and complexity of the design.

on the horizontal axis of rotation, the control chamber of the elastic membrane provided with dams channels, one of which has a valve associated with a level sensor. This device allows you to adjust the levels in check irrigation systems at a certain level and to reduce the wear of the equipment.

The disadvantages of the known technical solutions, selected as a prototype, is the low precision of the regulation, the inability discrete regulation.

Technical solution to the problem is to increase the control accuracy, increased reliability, increased flow coefficient of discharge, the establishment of discrete control levels in check.

This object is achieved in that in an automated voucher discharge containing a shutter mounted on the water outlet hole on the horizontal axis of rotation, the control chamber of the elastic membrane provided with dams channels, one of which has a valve associated with the level sensor, the latter is in the form of a telescopic system with longitudinal grooves on the outer part and stop of the control range on the inside, and the gate consists of three sites, forming a closed vozdushnokosmicheskaya system allows you to set the control range of the water level in the receipt, the execution of the shutter in the form of three sites, forming a closed air space allows reducing the time of closing of the shutter to make the design easier.

The essence of the invention is illustrated by drawings, in which figure 1 schematically shows an automated cheque outlet, figure 2 shows the level sensor.

Automated cheque outlet consists of inlet pipe 1 with the water outlet hole 2 and foundations 3 facilities. On the water outlet hole 2 has a shutter 4, consisting of three sites 5, rigidly and angle connected with each other. The shutter 4 is installed on the horizontal axis 6 of rotation. The controller includes a partition wall 7, is stationary in the wall 3 of the building. Over the shutter 4 is placed the control chamber 8 of the elastic shell. The control chamber 8 is closed by the downstream of the partition wall 7 and is communicated with the lower downstream channel 9, and upper tail - channel 10. Channel 10 is made in the foundations of 3 structures, and channel 9 is the partition 7. Channel 9 has a valve 11 which is connected by a telescopic system with 12 sensor 13 level, which is attached to the system 12 by a clamp 14. The inlet pipe 1 in the zone of contact with the stopper has a bevel 30-60

Automated cheque outlet works as follows.

When insufficient water level in the downstream sensor 13 level is lowered, the valve 11 is open. The water flowing into the chamber 8 through the channel 10, flows through the channel 9, which has a larger diameter than the channel 10. Therefore, in the control chamber 8 does not occur excessive pressure. At the same time, the water pressure in the inlet pipe 1, occurring due to the pressure H (difference between the levels of the upper and lower bays) on the building, opened the shutter 4, a freely rotatable on the axis 6 of rotation. Water flows in the lower reach. Since the inlet pipe 1 is slanted, it significantly increased the front output stream, so to enter into the lower reach full flow enough even incomplete opening of the shutter 4.

In the moment of achieving a given level of water in the downstream sensor 13 level through a telescopic system 12 closes the valve 11, which overlaps the channel 9. Through the channel 10, the water continues to flow into the control chamber 8, as the water pressure in the inlet pipe is greater than the control chamber 8 and she, being filled, the pressure on the shutter 4 is closed (figure 1).

Further there is a lowering of the water level in the downstream to the lower limit regularity to the valve 11, associated directly with the outer part 15 of the telescopic system, which opens the channel 9 managing the camera 8. Because channel 9 has a larger diameter than the channel 10, the outflow of water from the control chamber 8 exceeds the flow through the channel 10 and therefore, the internal water pressure in the control chamber 8 is reduced and becomes equal to the external pressure, i.e. the pressure in the downstream. Thus, no influence of the flow chamber 8 to the gate 4, and it opens. Water flows in the lower reach, adding up to a specified level.

Claims

Automated cheque outlet, containing a shutter mounted on the water outlet hole on the horizontal axis of rotation, the control chamber of the elastic membrane provided with dams channels, one of which has a valve associated with the level sensor, wherein the level sensor is made in the form of a telescopic system with longitudinal grooves on the outer part and stop of the control range on the inside, and the gate consists of three sites, forming a closed air space.

 

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FIELD: irrigation systems used for automatic watering of plants on restricted area plots.

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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