RU2749571C1 - Measuring device for determining flow rate of water from fire hydrant - Google Patents

Abstract

FIELD: water supply.SUBSTANCE: invention relates to water supply and solves the problem of determining the flow rate of water from a fire hydrant installed on the water supply network. Disclosed is a measuring device for determining the flow of water from a fire hydrant, characterized by sequentially installed and connected by means of a threaded connection with a fire pressure head connecting head, a coarse filter, a water meter, a tee, a pipe one meter long, while the tee has a threaded connection through a sleeve with a pressure gauge, an adjustable tripod is installed in the middle of the tube.EFFECT: provided is ability to determine the actual flow of water from the fire hydrant.1 cl, 1 dwg

Description

The invention relates to water supply and solves the problem of determining the flow rate of water from a fire hydrant installed on the water supply network.

Known column for checking underground hydrants according to the author's certificate of the USSR No. 1539269, publ. 01/30/1990, containing a body with holes for water outlet, a collapsible bar with a handle and a cap, a transverse platform placed on the bar, with rods, made with a groove open from the bottom, a valve rigidly connected to the platform rods, a pressure gauge located on the inner surface of the body, removable annular guides made with stops facing each other interacting with the rods of the transverse platform, while the valve is made in the form of a hollow cylinder with holes on the lateral surface and is installed with the possibility of rotation in the annular guides.

The disadvantage of a column for checking underground hydrants is that it cannot measure the flow rate of water from a fire hydrant.

The task is to create a measuring device for determining the flow rate of water from a fire hydrant.

The technical result is the ability to determine the actual consumption of water from the fire hydrant.

The technical result is achieved by a measuring device for determining the flow of water from a fire hydrant, characterized by sequentially installed and connected by means of a threaded connection with a fire pressure head connecting head, a coarse filter, a water meter, a tee, a pipe one meter long, while the tee has a threaded connection through a foot with a manometer, an adjustable tripod is installed in the middle of the pipe.

The invention is illustrated by the drawing, which shows a general view of the measuring device.

A measuring device for determining the flow rate of water from a fire hydrant consists of:

1 - head connecting fire pressure head;

2 - coarse filter;

3 - water meter;

4 - tee;

5 - footwear;

6 - manometer;

7 - a piece of pipe one meter long;

8 - adjustable tripod;

9 - threaded connection. An example of a specific implementation.

A measuring device for determining the flow rate of water from a fire hydrant was assembled as follows. In a coarse filter, for example DN-80, a fire pressure head connecting head, for example, GC-80, was screwed on one side by means of a threaded connection, and on the other hand a water meter, for example, EKOMERA DN-80, was screwed into it by means of a threaded connection. On the other hand, a tee, in our case, DN-80, was screwed onto the EKOMERA DN-80 water meter by means of a threaded connection. On the other hand, a piece of pipe with a length of one meter was screwed into the DN-80 tee. On the third side, a fitting, for example 80/15, was screwed into the tee by means of a threaded connection, into which a pressure gauge, in our case MT-100, was screwed in by means of a threaded connection. An adjustable tripod was installed in the middle of the tube. The measuring device was connected on one side (with the head of a fire-fighting pressure head GC-80 screwed into a coarse filter DN-80) to the outlet pipe of the fire control column screwed onto the fire hydrant by means of a threaded connection. The fire hydrant valve was opened by turning the key of the fire control column column, first by one or two turns and filled it with water for a certain period of time, during which the noise of the water entering it was heard, and after the noise ceased, further turns of the fire control column column key opened the fire hydrant valve completely, after which, by rotating the handwheel, the valve of the discharge pipe was opened with an attached measuring device for determining the water flow rate from the fire hydrant, and through it water was supplied to the adjacent territory. The EKOMERA DN-80 water meter recorded a water flow rate of 54.3 m ³ / h or 15 l / s, and a pressure of 0.45 MPa was recorded with an MT-100 manometer.

Thus, the claimed measuring device for determining the flow rate of water from a fire hydrant provides the determination of the actual flow rate of water.

Claims (1)

A measuring device for determining the flow of water from a fire hydrant, characterized by sequentially installed and connected by means of a threaded connection a fire pressure head connecting head, a coarse filter, a water meter, a tee, a pipe one meter long, while the tee has a threaded connection through a sleeve with a pressure gauge, an adjustable tripod is installed in the middle of the tube.

Images