SU40784A1 - Tap water network - Google Patents

Description

In plumbing from water mains, single outlets are usually arranged to supply water to a household plumbing network or to supply water to fire-fighting water taps, which are often required to be set aside from the water mains, near fire-safe or convenient locations. for the dismantling of water by the inhabitants. In this case, the movement of water in the branch will occur only when the water from the taps standing on the branch is disassembled. If there is no water analysis, the water in the branch pipes will be without, at least at this time, water flows along the line. The stagnation of water in the branches causes the water to freeze in them, and then damage both the branch itself and sometimes the water mains; This is especially true when, for one reason or another, water lines have to be laid in freezing soils.

It is known to arrange water lines, which are two pipelines interconnected during the absence of water analysis so that they form a loop, and in such a loop-shaped pipeline, water is maintained by means of pumps or other means to prevent freezing of water.

The described branch of the pipeline (545)

Noah network refers to this kind of devices. A new feature of this branch is the use of a venturi pipe, which is connected to the main pipe and to the constricted part of which one end of the branch is attached, the other end of which is connected directly to the main pipe in order to obtain water movement in a closed branch only due to the movement of water in the main pipe.

By this, it is meant to allow the construction of water pipelines in harsh climatic conditions, when water pipes are laid in freezing soils, to make water pipe inlets in the building and put taps (fire and water dispensing) away from water mains without the risk of freezing water in

branch pipes with prolonged absence of water analysis from the taps of this branch.

The proposed branch may be useful in some cases of construction of water pipelines under moderate climatic conditions, in which water pipes are usually laid below the depth of winter soil freezing, for example, for temporary water lines laid on the ground or at a slight depth in the freezing soil, also when passing a branch part through a cold unheated room or cold underground of a building or, if necessary, supplying water to a faucet set in Unheated or irregularly heated room.

In FIG. 1 depicts the schema of the described branch; FIG. 2 is also in another form of implementation.

A venturi 7-2 is laid on the water mains. From the highway, two outlets are made: the first from the wide end / venturi pipe and the second from the neck 2 of this pipe. Taps are made in the usual way. Both branches are brought to tap 3 (Fig. 2), which is required to be set aside from the main line, or introduced into a heated building (Fig. 1), in which ordinary single water lines are laid and the necessary water fittings are installed.

With the device of double taps described above from the water mains in a closed loop formed by these taps, water circulates during all water movement along the mains, regardless of the water from the taps standing on the branch. The reason for the circulation of water through the double discharge is the difference in pressure heights that is formed when water flows along the main line into the Venturi Pipeline, at its two points from which the outlets are made, namely: at the entrance / into the pipe and in its narrowed part (neck) 2 .

Circulation of water in the double branch will take place at each

small movement of water along the line, no matter how small the movement of water along the line and the branch, but in general, they will cause a gradual replacement of water, stagnant in the branch pipes, and thus give up the onset of the moment that the water in the branch pipes will freeze. The device of double outlets according to the type shown in the diagram is applicable, regardless of the direction of water movement along the main line. If the water movement will be in the forward and reverse directions, then the device for tapping from the Venturi pipe should be applied to the direction of movement along the highway that is predominant, i.e. as shown in the diagram, considering that traffic in the highway, shown by the arrow.

The subject matter of the invention.

A branch of the water supply network in the form of a loop connected to a main pipe to form a closed pipeline in which water flows are supported from the prevention of its freezing, characterized by the use of a venturi pipe that is connected to the main pipe and to the constricted part of it.

one end of the branch, the other end of which joins directly

to the trunk pipe.

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