TH18C3 - The sedimentation tank using a siphon system to ripple the sediment layer by controlling the siphon formation with a water gate, venting and stopping the siphon with compressed air. - Google Patents

Abstract

The Sludge Blanket Clarifier relies on the pulsation of water to achieve uniform sludge concentration (Uniform Sludge Concentration) by storing raw water in the Siphon Compartment to the desired level. It causes a siphon condition by releasing compressed air inside out through the air release valve (Air Release Valve), which accepts the signal on or off From the level switch in the siphon section and maintain the siphon condition by preventing the air from entering with a reverse water gate The water in the siphon part flows rapidly through the main pipe, receives the water ripple into the water ripple section and out into the sediment layer in the sedimentation tank through the perforated pipe, causing the sludge layer to ripple and arranged to have a uniform density (Uniform Sludge Concentration). To provide high efficiency flocculation When the water in the siphon is reduced to the lowest level. The level measuring device sends a signal to open the door of the compressed air valve (Solenoid Valve), which is controlled by a timer (timer) to provide compressed air (Air Compressor) that is already in the factory. It generally flows into the inside of the pipe cover, stopping the siphon condition. The water in the siphon section will not flow into the main pipe. The pulsation will stop and the water will begin to accumulate in the new siphon section to the desired level. And will produce a siphon and stop the siphon condition Continuously alternate

Claims (4)

1. Sludge Blanket Clarifier, which is characterized by a sedimentation component. It is a tank and has three ripple water chambers to allow water to be emitted into the sediment layer with a unique characteristic. The water ripple tower is divided into 2 parts with 4 dividing plates, the upper part is the siphon compartment 5, the lower part is the ripple water compartment 6, where the top 5 siphon opens into the atmosphere. (In the event that the top cover is completely closed, ventilation ducts must be performed) The lower water ripple 6 opens to the atmosphere with the vent 7 Raw water flows into the siphon section by raw water pipes as in Figure 5, the inlet water will be reduced speed. With a baffle 17, the water in the siphon section will gradually rise until the water level at point 15, the water will cover the pipe cover 20. During this time, the ventilator 21 is closed, causing air to be trapped between the pipe cover and the main pipe. And Compressed air release pipe 23 When the water level in the siphon section in Figure 6 rises up to the water level at point 16, the water in the cover will fill the mouth of the main pipe, receiving the water ripple at the pressure point of the compressed air. This is equal to the height of the water level 13 and is equal to the height of the water level 14 pressing the end of the main water ripple pipe 9, which will also be the air pressure in the compressed air outlet 23 at this point according to Figure 7. (Level Switch) 26 will be complete and send a signal to the compressed air vent sluice 21 Open, compressed air in the pipe 23 will be expelled rapidly due to the water pressure until the area between the pipe cover and the main pipe receives a full ripple. With the water causing the siphon (Siphon) and the water will flow into the main pipe, get the water ripple 9 rapidly into the water ripple section 9 quickly to the water ripple section. Inside the compressed air vent 23 becomes a vacuum. And the air will be sucked into the pipe because the ventilating gate is still open but the air cannot enter the inside of the pipe because it is blocked by the check valve 7, so the water inside the siphon section will flow rapidly into the main pipe. Ripple, which can adjust the amount of water flowing in the pipe by adjusting the flow (Flow control cone) 10, which will adjust up or down with the steering wheel (Hand Wheel). 11, pull the shaft (Shaft) 12, which is connected to Water flow adjustable funnel This makes it possible to adjust the ripple of water towards the sludge to force or gradually to suit the density of the sludge. When the water level in the siphon is reduced to the middle of the tank. The level 26 measuring device at level L 2 will be complete, sending a signal to close the compressed air gates 21 and when the water level in the siphon section drops to the water level at point 15 according to Figure 5, the level 26 measuring device at level L 3 will deliver a contract. Open the door of the compressed air (Solenoid Valve) 24, which controls the opening and closing time with a timer 25 to allow the compressed air obtained from the air compressor, which is already in The factory generally flows into pipe 23, into the cover of pipe 20 and over the main pipe, receiving the ripple water 9, causing the siphon condition to disappear. The water in the siphon section stops flowing into the ripple section and begins to rise further until the pipe cover is closed. 20 Water collection cycle. And a new siphon will occur alternately as long as the raw water flows into the siphon. (And stop at that level when no water enters the siphon section) In case of need to stop the sediment fluctuation for as long as desired, set the desired time to open the compressed air gates 21 after receiving the signal. From the level 26 measuring device, during that time, the water in the siphon section will flow overflow drain 8 into the ripple section instead of through the main ripple pipe.9 2. Sedimentation tank according to claim 1, where the position of the water ripple tower can be set both inside and outside the sedimentation tank. 3. Sedimentation tank according to claim 1, where the Siphon Water Compartment and the Ripple Water Compartment can be installed separately. With the main pipe receiving the ripple water (Ripple Water main pipe) between the two parts 4. The sedimentation tank according to claim 1 is also equipped with an additional pump for pumping water into the siphon water compartment to create a continuous water ripple in the absence of pumping raw water into the sedimentation tank.