SU1707139A2 - Method for groundwater disposal in regions with long-term period of subzero temperatures - Google Patents

Abstract

The invention relates to watering in construction and mining, in particular to lowering the level of groundwater and transporting water over the surface. And ;; the scrambled to improve efficiency Peres, 1, goes to the R & D state at air temperature close to 0 ° C. This is achieved by the fact that in the process of transporting water in the solid-state state, the particles of the dry droplets, their crushing and the introduction of the crushed particles into the water-transfer zone are successively carried out. Provides - with nil-enme flow. lektroen-zg1 1-. , the use of thermal insulators and thermal insulators: an anime located on the surface of pipelines for removal of groundwater outside the work area, especially in areas with a long period of negative air temperatures. 1 ill., 1 tab. And d

Description

The invention relates to water lowering in construction and mining, in particular, to lowering the level of groundwater and transporting water over the surface.

The purpose of the invention is to increase the efficiency of converting water to the solid-droplet state at air temperature close to 0 ° C.

The drawing shows a device for implementing the proposed method of water.

A device for implementing the method of discharging water has a suction inlet 2 of a drain pump 3 with a discharge pipe 4 for supplying water to the surface, which ends with a distributor 5 with nozzles 6, located under the distributor 5, a collecting hopper 7 with a feeder 8 connected to a receiving chamber 9 of the electric injector 10, adjacent to the last pipeline 11, the pneumatic jacks nozzle 12: 10 and the discharge pipe 13, connecting the nozzle 12 to the compressor mouth, —is. consisting of a compressor 1l of the refrigerator 15, prior to cooling of the airj of the air collector 16, located between the cooler 15 and the air collector 16 of the check valve 17, and the air temperature sensor 18. Pipeline 11 is provided with an opening 19 and an unsuitable attachment of a branch pipe 20 with an ezzo-retaining valve 21, a metal mesh 22 and a conical socket 23 with flat reflectors 24 at the output end. Seshil 21 can be equipped with a device for remote control. A conical socket is installed above the bunker 7 1-2 m above the nozzles 6.

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The method is carried out as follows. The groundwater accumulated in the water collector 1 is taken by pump 3 by means of pipe 2 and through pipeline 4 under a pressure of 1.0-1.5 MPa is fed to the dispenser bis using spray nozzles 6 in the open air into small droplets with a diameter of 0.1 mm . Water droplets, moving in cold ambient air, turn into solid droplets, which accumulate in the bunker 7, from which, via feeder 8, frozen water droplets are fed into the receiving chamber 9 of the pneumatic ejector 10, the nozzle 12 of which introduces cooled air from the compressor 14. The air is cooled in the refrigerator 15 to the freezing point of water, and its temperature is monitored by the sensor 18.

The air exiting the nozzle 12 creates a vacuum in chamber 9, whereby solid water droplets are sucked into the pneumatic ejector 10 and further, mixed with the air flow as an air mixture, are transported via pipeline 11 to the air mixture collection site. When the ambient air temperature is close to 0 ° C, for example, (-5 ° C - -1 ° C), the valve 21 is opened and through the opening 19 and a part of the air mixture with solid water drops from the pipe 11 to the zone is fed through the outlet pipe 20. spraying water over the bunker 7. A passage with an air flow rate through the wire mesh 22, fragile solid droplets hit the metal rods of the wire mesh and is crushed into small pieces. Grinding continues with hard droplets

06 reflectors 24. For example, from the pneumatic conveying pipeline 11, an air mixture in the volume of 1/20 part is removed at a pumping rate of 10 m / s at -4 ° C. Each fragile solid snow droplet is crushed into 10 particles of almost equal size (the degree of crushing is 10). At the same time, frozen and crushed parts of solid water droplets fall into the water spray area and serve as crystallization centers, accelerating the process of the formation of new solid water droplets that fall into the bunker.

7 and do not intrude on its walls. Since the solid drops are returned to the hopper 7 again much more, the efficiency of snow formation increases several times.

Claims (1)

The application of the method will make it possible to increase the efficiency of snow formation to reduce the power consumption for spraying water, to eliminate capital expenditures and equipment change, cleaning the bunker stenos from ice, reduce the size (height) of the equipment and make it mobile. This will expand the range of application of the method. Claims of the method for removal of groundwater in areas with a long period of negative temperatures according to ed. St. NS 1331957, characterized in that, in order to increase efficiency at an air temperature close to 0 ° C, in the process of transporting water in the solid-droplet state, part of the solid droplets are successively separated, crushed and introduced into the water transfer zone. solid drop state. Technical - economic comparison of new and known methods eleven