RU2725001C1 - Water-column - Google Patents

Abstract

FIELD: water supply.SUBSTANCE: invention relates to water supply. Water-lifting column comprises water supply pipe (11) arranged inside housing (1) and connected to discharge pipe (6) via shutoff valve (2). Between shutoff valve (2) and pouring pipe (6) there is insert (3) with an inner diameter smaller than the diameter of pouring pipe (6). Insert (3) has holes (5). On the outer side of the insert with a hole in the bottom there is cup (4) inserted so that holes (5) of the insert are at the level of the bottom of cup (4). Above the shell there is elastic cover (9) in the form of a truncated cone with hole-breather (10), connected by lower (8) and upper (7) yokes with sleeve (4) and pouring pipe (6) respectively.EFFECT: simplified design of the device.1 cl, 2 dwg

Description

The device is intended for water supply and relates to devices designed for the analysis of water by the population from an external water supply.

Known hydrant [1] comprising a housing with a flange made with the possibility of connecting to a water conduit, a cover with a flange, a connecting pipe and a locking device, including a ball bearing, a valve and a screw pair consisting of a spindle and a thread in the cover. The cover is made in the form of a hollow solid cylinder, and the valve is made with a rod, the upper part of which, as well as the spindle with ball bearing, are placed inside the cover, the free volume of which is filled with grease.

Also known is a water-folding column [2], comprising a housing with a cover, water supply and water-collecting pipes, a device for removing water from the lower part of the housing, a spring-loaded shut-off valve and a pressure handle. In order to simplify the design and increase reliability under low temperatures, the device for removing water is made in the form of a hollow rod rigidly connected to the handle and interacting with a spring-loaded shut-off valve with a counterweight in it, the cover is equipped with a roller with a cable, one end of which is attached to the counterweight and the other to the handle, while the rod is installed with a gap inside the column body.

The disadvantage of these devices is the dependence of the amount of removed water on the intensity of the pressure of water in the feed pipe.

Also known, taken as a prototype, a water column [3] comprising a housing with a cover, a water supply and a water pipe, a device for removing water from the lower part of the body, a spring-loaded shut-off valve and a push handle, in which the device for removing water is made in the form of a rigidly connected to the handle and a hollow stem interacting with a spring-loaded shut-off valve with a counterweight placed in it, the cover is equipped with a roller with a cable, one end of which is attached to the counterweight and the other to the handle, while the rod is installed with a gap inside the column body.

The disadvantage of the prototype is also the dependence of the amount of removed water on the pressure, due to the complexity of its design.

The technical result is to simplify the design by combining the functions of various parts in one component: using an insert into a spout of a smaller diameter with holes as a device for draining water into an installed cup, covered with an elastic cover - corrugation with an opening - a breather, secured with clamps to the spout pipe and cup.

The design of the proposed solution is shown in FIG. 1, where indicated:

1 - column housing;

2 - shutoff valve;

3 - insert;

4 - a container for draining water in the form of a glass;

5 - holes in the insert;

6 - spout pipe;

7 - upper corrugation clamp;

8 - lower corrugation clamp

9 - cover (elastic corrugation);

10 - hole - breather;

11 - water supply pipe.

a) the valve is closed;

b) - the valve is open

The principle of operation of the insert is based on creating a pressure difference in different parts of the spout

From physics, the fluid flow equation is known [4] (see Fig. 2):

V ₀ / P ₀ = V ₁ / P ₁

Where: V ₀ - flow rate in the water supply and discharge pipe;

P ₀ - pressure in the water supply and discharge pipe

V ₁ - fluid velocity in the insert

P ₁ - pressure in the insert.

It tells us that at a constant liquid density, the velocity changes inversely with the cross-sectional area of the pipe.

When a fluid flows with a constant density with a constant speed (V ₁ ) in a pipe with an insert of a smaller diameter, the pressure changes inversely with the cross-sectional area of the pipe

P ₁ <P ₀ .

Then, if a hole is made in the insert, then, due to the pressure difference, the surrounding water or air will “suck in” it.

The device assembly represents the following design (Fig. 1):

Between the shut-off valve (2) and the spout pipe (6), an insert (3) is placed having an inner diameter smaller than the diameter of the spout pipe (6). The insert has holes (5). On the outside of the insert with a hole in the bottom, a cup (4) is inserted so that the holes (5) are at the bottom of the cup (4). An elastic cap in the form of a truncated cone (9) with a breather hole (10) is connected to the top of the glass; it is connected by the lower (8) and upper (7) pipe clamps to the glass and the discharge pipe, respectively.

The water column works as follows.

After water intake (Fig. 1a) and closing the shut-off valve (2), water from the discharge pipe (6) through the holes (5) in the insert (3) is poured into a glass (4). When the column handle (not shown) is pressed, the shutoff valve (2) opens and water from the water supply pipe (11) flows through the insert (3) and the discharge pipe (6). In the area of the insert, at the hole (5), the water pressure is less than in the water supply (11) and discharge pipe (6). Therefore, water from the glass (4) through the holes (5) enters the discharge pipe (6) and is drawn into it, releasing the glass (4). At this time, the lid - corrugation (9) put on the glass (4) protects it from the ingress of debris or foreign objects, and when water is removed from the glass (4), the opening - breather (10) passes air into the glass so that water enters the outlet pipe (6).

Sources of Prior Art Information

1. Patent for useful RF №161454

2. USSR Copyright Certificate No. 100480

3. USSR Copyright Certificate No. 1137167

4. Feynman. Lectures in physics. Volume 7. Chapter 40.

Claims (1)

A water column containing a water supply pipe located inside the housing and connected through a shut-off valve to a spout pipe, characterized in that an insert with an inner diameter smaller than the diameter of the spout pipe is placed between the shut-off valve and the spout pipe, and the insert has openings, and a cup is inserted on the outside of the insert with an opening in the bottom so that the insert openings are at the level of the bottom of the glass, while at the top of the glass there is attached a truncated conical elastic cap with a breather hole, connected by the lower and upper clamps to the glass and the discharge pipe, respectively.

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