PEX plumbing pipeline system

One way to improve the stability of intakes in excessive loss of water level at the source (in water intake wells) is to increase the vacuum suction Taco 007 pump, in particular through the creation of high-pressure water jets in the intake plumbing pipeline pump. On the basis of special studies carried out to Institute VODGEO VF Toltsmanom, studied hydraulic phenomena and regularities of interaction between the main flow inlet and flow of the jet, which creates a nozzle installed in the intake PEX plumbing pipeline. To obtain the positive effect of the nozzle must be mounted at a distance from the pump at least five diameters of the pipeline.

In periods of low (critical) levels of source water and, consequently, in the coastal pit work pumps can fail also because of the small supply of water in the suction chamber, leading to air leak. To avoid this, when constructing the onshore wells should be provided with constructive and technological parameters of the relationship of water intake depends on
Wi / qi> 30 ... 35
(Where Wi - the volume of water in the suction chamber, m3; qi - amount of water, pumped from this chamber, m3 / s).
With the same aim of rainwater hole suction pipe must bury at least h, m:
h> 8,5 qi / (0,785 dc)
where DK - diameter of the well, equivalent to the area of the suction chamber, m
In addition, there should be a condition h> 2D.

In order to avoid leak-deposited sediment in the onshore well is downhill chute should be located at a distance of not less than 0,5 D from the bottom of the well. In existing PEX plumbing system in violation of the stability of the pumps due to air suction makes the diaphragm on the bell suction pipe or floating panels, impeding the formation of air funnels and vacuum breakdown. Diaphragm is usually made of sheet steel and welded to the bell, and floating panels - from boards, put together in the leg vertical riser intake plumbing pipeline. At the same panels can move only vertically.

Enhancing the stability of the Taco 007 IFC I rise through the evacuation of coastal wells is their seal (especially floors) and additional equipment vacuum installations. For this purpose, can be used Circulating pumps GDP-12 or RMK-3 (one worker, the second backup). For any dimensions of modern onshore wells Required value of the vacuum in them can be reached within 5 ... 10 min. The water level in the well regulate the air intake under the joists, which in the suction plumbing pipeline Circulating pumps establish a special connection. In addition to improving the stability of the vacuum pump water well can improve their performance.