SU1409978A1 - Double-acting level regulator - Google Patents

Abstract

The invention relates to hydroamelioration, namely to devices for automating water regulation during the operation of a closed drainage network on drainage and humidification systems. The aim of the invention is to improve the accuracy of the controller. The level regulator contains a drainage well 1, a float 2 with a valve, a water outlet 5. The valve in the form of a membrane 7 with rings 9, one of which is connected to the rod 3 and the other with stop 11 relative to the bottom of the chamber 6, provides an increase in control accuracy Torah. 1 hp f-ly, I ill.

Description

(L

with

about o

h

00

fP№-vri,

p in e- f, l

The invention relates to hydroamelioration, namely to devices for automating water regulation during the operation of a closed drainage network on drainage and humidification systems.

The aim of the invention is to improve the accuracy of the controller.

The drawing shows a two-way level control.

The level regulator contains a drainage well 1, in which a float 2 is mounted, connected by a stem 3 with a valve, located at the discharge outlet 4 of the outlet 5. A chamber 6 is fixed on the outlet outlet tip. The valve is made in the form of a membrane 7 with a rigid center 8. The membrane is fixed between two rings 9, one of which, the top one, is connected by the GO bracket to the stem 3, and the other, the lower ring 9 is provided with a stop 11 for the stroke, relative to the bottom of chamber 6 and connected to it by rods 12. Chamber 6 is in communication with the cavity of the drainage well 1 hole 13. Drainage The well 1 is connected to the channel A by the outlet 5, and the collector 15 - to the closed drainage network. Levels in channel 14 are labeled 16-18. The drainage well 1 is provided with a siphon 19 placed therein with a diaphragm check valve 20, the descending branch of which is connected to the tip of the outlet 5 through chamber 6. The neck of the siphon 19 is equipped with an air tube 21, the end of which is installed with the possibility of blocking the float 2 at a given level of liquid.

The bilateral regulator operates as follows.

During drainage, the control facilities on the open network are open and in channel 14 the water level 16 is set, which is lower than the groundwater level in the reclaimed area. In this case, the regulator is slinging, stabilizing the level in well 1 at a predetermined level due to drainage and discharge excess water into channel 14. If the water level in the drainage well 1 decreases, the float 2, the stem 3 and the valve are lowered. In this case, the hard center 8 closes the discharge opening 4, but as a result of the presence of the flexible membrane 7 of the ring 9 and the travel stop 11 rigidly connected with them

0

five

0

five

0

five

0

five

0

five

continue to mix until they stop at the bottom of chamber 6. Due to the level difference between well 1 and channel 14, the hydrostatic pressure acting on the valve from chamber 6 is greater than the pressure acting on it from the tip of the outlet 5, which ensures its tightness to close. If the water level in the drainage well 1 becomes higher than the set mark, the float 2 will pop up, pushing up the stem 3, the ring 9 and the stop 11, which comes into contact with the hard center 8 and raises it, thereby eliminating the effect of additional mechanical pressure on the membrane 7. load. As a result, the outlet opening 4 of the outlet of the outlet 5 is opened, and the excess water from the drainage well 1 through the chamber 6 and the outlet 5 is discharged into the channel 14,

When ascending, the float 2 will cross the end of the air tube 21, the lower part of which is designed as a bellows. If, when the valve is fully opened, the water level in the drainage well 1 continues to rise and reaches the alarm mark, then the siphon 19 is charged and the regulator's capacity dramatically increases. The breakdown of the vacuum in the neck of the siphon 19 and the termination of its operation occurs when the level drops below a predetermined value due to the opening of the air tube 21.

If the local drainage outflow is insufficient and the water levels in the drainage wells decrease below the permissible value, then in the control channel 14 water is supplied for humidification. When it reaches the level of 1.7, pre-. higher level - in the drainage well 1 for an amount sufficient to lift the valve, the flow orifice opens, because due to the presence of the limiter 1 1 of the bend, the flexible membrane 7 with the rigid center 8 moves freely upwards. Water from channel 14 through the water outlet 5 through chamber 6 enters the well 1. Water is supplied to channel 14 to establish a level in it. When the specified level in the well 1 floats 2, the float 2 pops up, stirring the stem 3 up, and the valve pushes the discharge opening 4, limiting the flow of water into the well 1, and at lower levels

The float 2 is lowered, moving the rod 3 down, and the valve opens the flow orifice 4, increasing the flow of water into the well 1. Diaphragm check valve 20 prevents the backflow of water through the siphon 19,

Thus, in humidification mode, the regulator automatically switches to the water supply when the level in channel 14 is increased.

Claims (2)

1. A double-acting level regulator containing a drainage well in which a float is installed, connected by a stem to a valve placed on the discharge outlet of the outlet, characterized in that, in order to increase the accuracy of the regulator, it contains the chamber is fixedly mounted on the top of the outlet, the valve is made in the form of a membrane with a rigid center: fixed between two rings, one of which is rigidly connected to the stem, and the other is equipped with a travel stop relative to the bottom of the chamber, and a valve with rings is placed in the chamber, communicated with the cavity of the drainage well, 2. The regulator of claim 1, about tl, which is provided with a siphon placed in a drainage well with a diaphragm check valve, the descending branch of which is connected to the outlet outlet, and the siphon neck is fitted with an air tube, the end of which is fitted with the ability to block the float . at a given level of fluid.