JPH05293406A - Water sprinkling nozzle - Google Patents

Abstract

PURPOSE:To provide a water sprinking nozzle having a simple structure, obtaining rod shape water sprinking and wide-angle water sprinkling and suitable for the snow removing sprinkler of the rail point part of a railroad. CONSTITUTION:A water sprinkling nozzle is constituted of a nozzle base body 1 having a water passage 2 piercing therethrough, a nozzle main body 11 having the nozzle orifice 23 formed so that the diameter thereof is expanded from the water passage 2 and contracted on the leading end side thereof and communicating with the water passage 2 on the base end side thereof and a cylindrical cover 21 whose leading end opening part is contracted in diameter. A plurality of primary air orifices 4 opened toward the base end of the nozzle orifice 23 of the nozzle main body 11 in an almost tangential direction are opened to the nozzle base body 1. A plurality of secondary air orifices 29 opened in a revolving direction are formed to the cylindrical cover 21 and a breaker pin 27 is provided to the cover 21 in a protruding state. Therefore, pressure water is mixed with air by primary air streams and injected waterdrops become large. Water is expanded at a wide angle by the revolving streams of primary air and the waterdrop stream injected from the opening part of the cylindrical cover is instantaneously expanded and rod-shape water is formed by the breaker pin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sprinkler nozzle for use in a snow sprinkler or the like at a railroad rail point.

[0002]

2. Description of the Related Art A sprinkler sprinkler nozzle of this type has a complicated structure in which the water pressure and the diameter of the nozzle hole are adjusted, and the nozzle hole is made spiral.

[0003]

However, in the snow-melting sprinkler at the railroad point portion of the railway, thin rod-shaped water is sprayed evenly along the basic rail and the tong rail, and a wide-angle water spray is required.

However, in the conventional water pressure adjustment and nozzle hole diameter adjustment, left and right rod-shaped water and wide-angle water spray could not be obtained.

The present invention has been made in view of the above-mentioned problems, and provides a water sprinkling nozzle having a simple structure and capable of sprinkling water with a wide angle and, in particular, suitable for a snow sprinkler for a railroad railway rail. It is a thing.

[0006]

The sprinkling nozzle of the present invention comprises:
A nozzle base body that penetrates the water passage, a nozzle body that is connected to the tip end side of the nozzle base body, has a base end side that communicates with the water passageway, and has a nozzle hole that has a diameter increased from the water passage and a tip end side diameter reduced, and this nozzle A cylindrical cover fitted to the front end of the main body and having a reduced diameter at the front end opening, wherein the nozzle base body has a plurality of primary air holes opened substantially tangentially to the base end side of the nozzle hole of the nozzle main body. And a plurality of secondary air holes opened in the turning direction are formed in the cylindrical cover, and breaker pins are provided in a protruding manner.

[0007]

In the water sprinkling nozzle of the present invention, the pressure water supplied from the water passage of the nozzle base is jetted into the nozzle hole of the nozzle body, and is sucked from the primary air hole at the enlarged diameter portion on the base end side of the nozzle hole. The air is mixed with water by the primary air flow, the water droplets jetted from the tip opening of the nozzle hole become large and the flight distance increases, and the swirling flow of the air from the primary air hole spreads it to a wide angle. The water droplet flow jetted to the cylinder cover is mixed with air by the swirling air flow sucked from the secondary air hole, and the water droplet flow jetted from the opening whose diameter is reduced at the tip of the cylinder cover instantaneously spreads and drops. , The flight distance is increased, and the breaker pin increases the air pressure of the water droplet flow in the central portion to form rod-shaped water.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A configuration of an embodiment of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a nozzle base body which penetrates a water passage 2 having a cylindrical cross section from a base end side toward a front end side, and a fitting recess 3 is formed on the front end side of the nozzle base body 1. The nozzle base body 1 has a plurality of, for example, four primary air holes 4 that are inclined from the base end side to the tip end side in the diameter reducing direction and are opened in a substantially tangential direction.

Reference numeral 11 denotes a nozzle main body. The nozzle main body 11 is fitted in a fitting concave portion 3 in such a manner that the base end side is communicated with the tip of the water passage 2 of the nozzle base body 1 in a circumferential direction so as to be adjustable and screwed. It is fixed by a set screw screwed into the hole 5. The nozzle body 11 has a cylindrical enlarged diameter portion 12 whose diameter is enlarged on the base end side of the water passage 2 of the nozzle base 1, and a reduced diameter portion 13 whose end is reduced and an intermediate portion with the enlarged diameter portion 12 and a reduced diameter. A nozzle hole 15 that is a conical portion 14 that communicates with the portion 13 is formed. In this state, the primary air holes 4 formed in the nozzle base body 1 are opened in the base end side of the nozzle hole 15 of the nozzle body 11 in a substantially tangential direction. Further, a reduced diameter step portion 16 is formed on the outer periphery of the tip end side of the nozzle body 11.

Reference numeral 21 is a cylindrical cover, the base end side of which is fitted to the reduced diameter step portion 16 of the nozzle body 11 so as to be oriented in the circumferential direction and fixed by a set screw screwed into a screw hole 22. To be done.
The cylindrical cover 21 has a tip end portion with a reduced diameter. Further, a plurality of secondary air holes 23 opened in the turning direction are formed in the cylinder cover 21. Further, a bolt 26 having a nut 24 screwed therein is screwed into a screw hole 24a formed on the peripheral surface of the cylinder cover 21, and the tip of the bolt 26 is projected inside the cylinder cover 21 to form a breaker pin 27. ing.

Next, the operation of this embodiment will be described.

The pressure water supplied from the water passage 2 of the nozzle base 1 is jetted into the nozzle hole 15 of the nozzle body 11,
The primary air flow sucked from the primary air hole 4 in the expanded diameter portion 12 of the base end side of 15 mixes the air with water to form a large water droplet, and the opening portion at the tip of the reduced diameter portion 13 of the nozzle hole 15 is opened. The flight distance of the water droplets jetted from is large. Further, the swirling flow of the air sucked from the primary air holes 4 spreads it to a wide angle. Further, the water droplet flow injected to the cylinder cover 21 is mixed with air by the swirling air flow sucked from the secondary air hole 23,
The water droplet flow ejected from the opening momentarily spreads, and the breaker pin 27 increases the pressure of the water droplet flow in the central portion to form rod-shaped water. The flight distance of a large water drop increases.

As shown in FIGS. 4 to 8, the circumferential fitting angle of the nozzle body 11 fitted to the nozzle base 1 and the circumferential fitting angle of the tubular cover 21 are adjusted. By adjusting the direction, the relative positions of the primary air hole 4, the secondary air hole 23 and the breaker pin 27 are changed, the injection state is changed, and the primary air hole 4 and the secondary air hole are changed according to the purpose of watering. Adjust the relative position of 23 and breaker pin 27.

Next, the experimental results of the change in water spray due to the changes in the positions of the primary air hole 4, the secondary air hole 23 and the breaker pin 27 of the water spray nozzle of this embodiment will be described with reference to FIGS. Pressure of water is 5kg / cm ² , flow rate is 44l / m, and the height is 90mm to 96mm between the basic rail and the tong rail at the point of the railway rail and 120mm to 130mm from the basic rail. FIG. 4 shows the result of an experiment in which a watering nozzle having four primary air holes 4, three secondary air holes 23 and two breaker pins 27 is installed at a distance position.
Through FIG. 8. In both experiments, the primary air holes 4 are arranged vertically and horizontally.

As shown in FIG. 4, when the two secondary air holes 23 are arranged on the basic rail side and the breaker pin 27 is in the horizontal position, the thick rail-shaped water 33, 34 hits the basic rail 31, and the tong rail 32 A thin rod of water hits, and water is sprinkled up to the tip of the rail at the point, and it is sprinkled over a wide angle, which is good for melting snow.

As shown in FIG. 5, when one secondary air hole 23 is arranged on the side of the basic rail and the breaker pin 27 is set in the horizontal position, a certain amount of rod-shaped water is averaged on the basic rail 31 and the tong rail 32. Hitting, water is sprinkled to the tip of the rail at the point,
Water is sprayed in a wide angle and the snow melting effect is good.

As shown in FIG. 6, when the two secondary air holes 23 are arranged on the basic rail side and the breaker pin 27 is set in the vertical position, the thick rod-shaped water 34 hits the tongue rail 32 and the basic rail 31.
There is almost no water sprinkling, and the watering angle is narrow, making it unsuitable for snow melting.

As shown in FIG. 7, when one secondary air hole 23 is arranged on the basic rail side and the breaker pin 27 is set in the vertical position, the thick rod-shaped water 34 hits the tongue rail 32 in the same manner, and the basic rail 31 There is almost no water sprinkling, and the watering angle is narrow, making it unsuitable for snow melting.

As shown in FIG. 8, one secondary air hole 23 is arranged on the basic rail side, and the breaker pin 27 on the basic rail 31 side is inclined to the upper side and the breaker pin 27 on the tong rail 32 is inclined to the lower side. When they are made to face each other in the shape of a circle, thick rod-shaped water 33, 34 is formed in the central part and a hollow part 35 is formed, and the water spray angle is widened, but it is not suitable for snow melting.

As shown in FIG. 9, two secondary air holes 23 are arranged on the basic rail side, and the breaker pin 27 on the basic rail 31 side is inclined to the upper side and the breaker pin 27 on the tong rail 32 is inclined to the lower side. If they are made to face each other in the shape of a circle, the thick water 33,34
Is formed, a hollow portion 35 is formed, and the water spray angle is widened, but it is not suitable for snow melting.

As shown in FIG. 10, two secondary air holes 23 are arranged on the basic rail side, and the breaker pin 27 on the basic rail 31 side is inclined downward and the breaker pin 27 on the tongue rail 32 is inclined upward. When facing each other, the thick rod-shaped water 33,
34 hits, and the rod-shaped water does not hit the side of the basic rail 31, so even if the water spray angle is wide, it is not suitable for snow melting.

As shown in FIG. 11, one secondary air hole 23 is arranged on the basic rail side, and the breaker pin 27 on the basic rail 31 side is tilted downward and the breaker pin 27 on the tongue rail 32 is tilted upward. In the same way, the thick rod-shaped water 33, 34 hits the tongue rail side 32 in the same way, and the rod-shaped water does not hit the basic rail 31 side, so even if the water spray angle is wide, it is not suitable for snow melting. Becomes

Further, in the above experiment, in the case of snow melting, as a result of spraying warm water, the outside air temperature was 5 degrees Celsius, the pressure water pressure was 5 kg, the water amount was 42.6 l / m, and the wind speed was 0 m.
At the nozzle portion, hot water of 54 degrees Celsius becomes 49 degrees Celsius at a position of 1 m, 42 degrees Celsius at a position of 2 m, and 38 degrees Celsius at a position of 3 m.

[0025]

According to the present invention, the pressurized water is mixed with water by the primary air flow sucked from the primary air holes,
The water droplets jetted from the tip opening of the nozzle hole become large and the flight distance becomes large, and the swirling flow of air from the primary air hole spreads it to a wide angle. The swirling air flow sucked from the air holes mixes with the air, and the water droplet flow ejected from the opening whose diameter is reduced at the tip of the cylinder cover momentarily spreads and is ejected while the water droplets are still large to increase the flight distance. The air pressure in the central part of the water drop is increased by the breaker pin to form rod-shaped water on the left and right. With a simple structure, rod-shaped water and wide-angle water sprinkling can be obtained, especially for the snow sprinkler at railroad rail points. Suitable for watering nozzle.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional front view of a water spray nozzle showing an embodiment of the present invention.

FIG. 2 is a side view of the above watering nozzle.

FIG. 3 is a vertical cross-sectional side view of a cylinder cover portion of the above water spray nozzle.

FIG. 4 is an explanatory view showing a watering state in the positional relationship between the air holes of the watering nozzle and the breaker pins.

FIG. 5 is an explanatory view showing a watering state in the positional relationship between the air holes of the watering nozzle and the breaker pins.

FIG. 6 is an explanatory diagram showing a watering state in the positional relationship between the air holes of the watering nozzle and the breaker pins.

FIG. 7 is an explanatory view showing a watering state in the positional relationship between the air holes of the watering nozzle and the breaker pins.

FIG. 8 is an explanatory diagram showing a watering state in the positional relationship between the air holes of the watering nozzle and the breaker pins.

FIG. 9 is an explanatory view showing a watering state in the positional relationship between the air holes of the watering nozzle and the breaker pins.

FIG. 10 is an explanatory view showing a watering state in the positional relationship between the air holes of the watering nozzle and the breaker pins.

FIG. 11 is an explanatory diagram showing a watering state in the positional relationship between the air holes of the watering nozzle and the breaker pins.

[Explanation of Codes] 1 Nozzle base 2 Water passage 4 Primary air hole 11 Nozzle body 15 Nozzle hole 21 Cylinder cover 23 Secondary air hole 27 Breaker pin

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mamoru Kuraishi 1-1-1, Hanazono, Niigata City, Niigata Prefecture East Japan Railway Company Niigata Branch Office (72) Inventor Katsumi Ogawa 1-1-1, Hanazono, Niigata City, Niigata Prefecture No. East Japan Railway Company Niigata Branch (72) Inventor Manji Kikumi 3-3-11 Shimoigusa, Suginami-ku, Tokyo (72) Inventor Atsushi Higo 1-2-2, Fujimi-cho, Higashimurayama, Tokyo 54

Claims (1)

[Claims] 1. A nozzle having a nozzle base penetrating through a water passage, and a nozzle hole connected to the tip side of the nozzle base and having a base end communicating with the water passage and having a diameter increased from the water passage and a diameter reduced on the tip side. A main body and a tubular cover fitted to the front end of the nozzle main body and having a reduced diameter at the front end opening are provided, and the nozzle base is opened in a substantially tangential direction at the base end side of the nozzle hole of the nozzle main body. A sprinkler nozzle characterized in that a plurality of primary air holes are opened, a plurality of secondary air holes opened in the turning direction are formed in the cylinder cover, and breaker pins are provided in a protruding manner.