RU1808046C - Device for water intake from surface sources - Google Patents

Abstract

SUMMARY OF THE INVENTION: A housing with evenly spaced windows hydraulically connected to a drainage collector is placed under the clarifier. Adjacent windows are interconnected along the length of the housing by pipelines, pairwise interconnected by pipelines in the middle part. The middle parts are interconnected and with a collector for water drainage. 5 ill. SB with

Description

The invention relates to techniques for distributing liquids in natural and wastewater treatment plants by filtration, clarification and sedimentation methods with vertical movement of water and can be used in the field of water supply and sewage, and can also be used in stringer and deluge automatic fire extinguishing systems, in water distribution cooling tower systems and irrigation systems.

The aim of the invention is to increase the efficiency of the structure by ensuring uniform drainage at different flow rates.

In FIG. 1 shows an axonometric schematic diagram of the proposed device; figure 2-4 - sand separator using the proposed water intake device, where as connecting pipelines used channels with

sections of various configurations; figure 2 - sand separator, a view in plan, in fig.Z - section aa, figure 2; in Fig. 4 is a view B in Fig. 3 (bottom view of the sealed cover of the sand separator module); figure 5 is a schematic diagram of the proposed device when using it as a water distribution.

The water intake device includes receiving windows 1 uniformly distributed over the living cross-sectional area of the water collecting surface 2 of the structure and having hydraulic connection with the collector 3 of the water drain through a piping system structurally consisting of identical sections of the connecting pipelines 4, the middle parts 5 of which are paired with additional pipelines 6 , which, in turn, with their middle parts 7 are also paired together by identical pipe segments

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ports 8, 9, 10 to the connection 11 with the collector 3 of the water outlet, passing into the drain channel 12.

Further, the proposed water intake device is provided in its interconnection with the design of the sand separator (Figs. 2-4). The sand separator comprises a submersible metal casing 13 with a metal lid 14 and a thin-layer clarifier 15 mounted at its outlet, consisting of a series of inclined parallel plates of polyvinyl chloride sheet. In the metal cover 14, the proposed water intake device is mounted. The system of transporting closed channels 4-10 is made according to the principle of increasing pairwise symmetry with respect to subsequent sections, which ensures equal hydraulic resistance when the fluid moves from any receiving window 1 to the common collector 3 and then to the discharge channel 12. In the considered embodiment, the sand separator module also has a collecting channel 16 .

To enable all sand separator modules to be installed at the same level in the horizontal plane, all sand separator modules are equipped with height-adjustable struts-supports 17.

The embodiment of the sand separator module shown in Figs. 2-4 is designed for a capacity of 32 l / s, has a rounded size of 1.2x2.0x0.7 (N) and provides the release of water from sand and other coarse dispersed suspensions with a hydraulic particle size of more than 13.2 mm / s In this case, the hydraulic pressure loss during the passage of fluid within the design of the sand separator does not exceed 1.0 m. Depending on the required performance and installation conditions, this sand separator may have other design options and dimensions, it may be a single unit or divided into equivalent modules.

The device operates as follows.

Under the influence of hydrostatic pressure due to the difference in water levels or under the influence of the suction effect of the pump, water flows through the lower open plane into the sand separator body 13 and passes through the thin-layer clarification unit 15, where a laminar regime of water movement is established in the inter-plate space. This ensures the intensive deposition of sand and other pipe suspensions on the surface of the plates installed with an inclination of 60 ° to the horizon and, in turn, ensure

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In this case, the sediment creeps to the surface of the plates and removes it outside the sand separator, from where it returns to the source water of the source of water, which is in constant motion, and is removed together with it from under the device. A uniform distribution of water and a correspondingly high efficiency of the living area of the thin-layer clarification unit 15 installed in the sand separator is ensured by a uniform distribution of the receiving windows 1 of the drainage system. This leads to a natural division of the living section of the sand separator into many equal areas, because water freed from sand in the thin-layer clarification unit 15 rushes along the path of least resistance to the nearest receiving window 1. Equal water flow through each receiving window 1 is also ensured by the equality of hydraulic resistance when the water moves through the roof channel system 4-10 to the common collector 3 and further into the outlet channel 12. The outlet channel 12 can be combined with the outlet channel 12 of the adjacent module of the sand separator 19 in the collection channel 17, which, in turn, is combined on the basis of the equality of hydraulic resistance eny with the collecting duct 12 the next module pair desander etc. Then, the system of combining channels is connected to the suction pipe of the pump or discharged into the water intake well of the channel water intake located outside the water source.

When the direction of water movement is reversed (Fig. 5), the claimed solution can be used as distribution systems for automatic fire extinguishing pipelines in solving the problem of ensuring uniform distribution of extinguishing fluid over the area of the protected premises. A similar result can be obtained in water distribution systems of cooling towers and in irrigation systems. .

Claims (1)

SUMMARY OF THE INVENTION A device for collecting water from surface sources, comprising a clarifier, a housing placed above it with evenly spaced windows hydraulically connected to a drainage collector, is characterized in that that, in order to increase efficiency by ensuring uniform drainage of water at different flow rates, adjacent windows are interconnected along the length of the pipe body