JPS6135250Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a high-flow water spray head used for cooling coal storage facilities, suppressing coal dust, or extinguishing fires in warehouses.

Coal stored in a coal storage yard may generate heat and spontaneously ignite as its oxidation progresses. For this reason, it was necessary to periodically sprinkle water on the coal seams to cool them down and prevent spontaneous combustion. However, conventional sprinkler heads have a deflector size of 2 to
3cm, water discharge pressure and flow rate are 1Kg/cm ² , 80/
The water spraying area was approximately 2m in radius. Therefore, in order to cool a wide area, a large number of heads are required, and the installation is laborious and uneconomical.

In view of the above points, this invention provides a watering head that uses a large diameter and large deflector to emit a large amount of water from one head and can water a wide area.

An embodiment of this invention will be described below with reference to FIGS. 1 to 3. In the figure, 1 is a mounting flange, 2 is a cylindrical body that is screwed into the flange 1 and has three holes 3 at the top, and 4 is a cylindrical body that is screwed into the center of the top of the body 2 and has 4 holes on the side. 7 is a deflector hanging from the center of the nozzle 4 by a shaft 8; 9 is a cone;
0 and 11 are orifices screwed into the side walls of the main body 2 and the nozzle 4 for adjusting the flow rate.

Next, a case will be explained in which the above-mentioned head is connected to a main pipe provided on the ceiling of a coal storage facility by means of a flange 1. When the coal seams in the coal storage area reach dangerous temperatures where they can oxidize and spontaneously ignite, valves are opened automatically or manually to supply pressurized water to the mains. The pressurized water supplied to the head is divided into two parts: one that flows into the main body 2 through the hole 3, and the other that flows into the nozzle 4 through the window 5. The flow rate of the pressurized water flowing into the nozzle 4 is adjusted by the orifice 11 and collides with the cone 9 and the deflector 7, thereby uniformly spraying the area immediately below the head. On the other hand, the pressurized water whose flow rate is adjusted by the orifice 10 directly collides with the collar 6, is deflected in the horizontal direction, and sprays the far outer periphery of the head. For example, 100A flange, collar 6 and deflector 7
The diameters are 13cm and 6cm, and the water pressure is 3.5Kg/
cm ² and a flow rate of 2000/min, it was possible to sufficiently cool the coal within a radius of approximately 11 m.

In the above embodiment, the head was installed in a coal storage area and used for cooling purposes, but it can also be installed in a gymnasium, warehouse, etc. and used for suppressing coal dust, or for extinguishing fires.

The sprinkler head of this invention has a nozzle 4 and a deflector 7 concentrated in the center of a cylindrical main body 2, and orifices 10, 11 for flow rate adjustment.
Since the head is attached to the side wall of the nozzle 4 and the collar 6 is provided at the bottom of the nozzle 4, a water spray head with a simple structure and capable of spraying water over a wide area can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a plan view of one embodiment of the sprinkler head of this invention, FIG. 2 is a longitudinal sectional front view of FIG. 1, and FIG. 3 is a bottom view of FIG. 1. 1...flange, 2...body, 3...hole, 4...
... Nozzle, 5 ... Window, 6 ... Tsuba, 7 ... Deflector, 8 ... Shaft, 9 ... Cone, 10, 11
...Orifice chair.

Claims (1)

[Scope of utility model registration request] a cylindrical main body 2 with a plurality of holes 3 in the upper part;
A nozzle 4 that hangs down from the center of the main body 2 and has a window 5 on the side and a flange 6 at the bottom, a deflector 7 that hangs down from the center of the nozzle 4 through a shaft 8 and below the flange 6, and the main body 2. A large-flow water sprinkling head characterized by comprising orifices 10 and 11 provided on the side walls of a nozzle 4, respectively.