JPH02218459A - Fluid rotary nozzle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a rotating fluid nozzle for applying rotational force to a fluid such as water ejected from a spout.

Conventional Technology This type of nozzle is used for purposes such as fountains, irrigation, and aeration. Conventionally, water is ejected from the nozzle body in a direction that is at an angle to the radial direction, and the reaction force blows the nozzle body. There are some types in which the nozzle is rotated, and the rotation of the nozzle body applies rotational force to the water, thereby causing the sprayed water to open in the shape of flower petals.

Problems to be Solved by the Invention However, if the rotational force is applied to the water only by the reaction of the jetted water, it is not possible to give the jetted water a sufficient tangential velocity, which is the source of this rotational force. The problem is that it cannot be done.

SUMMARY OF THE INVENTION An object of the present invention is to solve these problems and to provide a large tangential velocity to the jetted water.

Means for Solving Problem 11 To achieve the above object, the present invention forms a nozzle body in the shape of a hollow cone, and provides a fluid jet port in the direction of the center line of the cone at the top of the nozzle body, A supply port capable of supplying fluid in a tangential direction to the inside of the nozzle body is provided on the outer peripheral portion of the bottom side of the nozzle body, and a supply port that can supply fluid tangentially to the inside of the nozzle body is provided inside the nozzle body. It is equipped with drive-type rotating blades that can provide directional speed.

Effect: According to this configuration, the fluid that enters the interior of the nozzle body from the supply port in a tangential direction rotates inside the conical nozzle body. Then, as it moves toward the fluid jet port provided at the top of the nozzle body, it is constricted on the inner surface of the nozzle body, resulting in a large tangential velocity. Furthermore, the tangential speed increases also by applying rotational force with the rotating blade.

Therefore, the fluid is ejected from the fluid ejection port with a tangential velocity synergistically imparted by the nozzle body and the rotating blades, and opens in the shape of petals.

Embodiment In FIGS. 1 and 2, reference numeral 1 denotes a nozzle body, which is formed into a hollow conical shape and has a water chamber 2 inside thereof.

3 is its side plate, and 4 is its bottom plate. A fluid jet a5 opening in the direction of the center line of the nozzle body 1 is formed at the top of the nozzle body 1. A fluid supply port 6 is formed in the outer peripheral portion of the bottom side of the nozzle body 1, that is, in the portion of the side plate 3 near the bottom plate 4. The supply port 6 is constituted by a pipe body 7 tangentially connected to the side plate 3, and is capable of supplying fluid into the water chamber 2 in the tangential direction. Inside the water chamber 2, a rotating blade 8 rotatable around the center line of the nozzle body 1 is provided at an arbitrary position. The rotating blade 8 is configured to receive rotational power from an underwater motor 9 provided outside the nozzle body 1 via a rotating shaft 10 passing through the bottom plate 4 .

Next, the operation of the fluid rotating nozzle having the above configuration will be explained by taking as an example a case where the fluid rotating nozzle having the above configuration is used as a fountain nozzle. When water 11 is sent as a fluid to the supply port 6, the water 11 enters the interior of the water chamber 2 from the supply port 6 in a tangential direction, is guided by the inner surface of the water chamber 2, and rotates.

As the water 11 provided with this rotation port moves toward the jet port 5, it is squeezed by the inner surface of the conical water v2, and is given a large tangential velocity CII. In addition, a tangential speed Cu is also given by the water 11&lt inside this water chamber 2 and the rotating blade 8 driven by the underwater motor 9, and the synergistic effect between the inner surface of the water chamber 2 of the nozzle body 1 and the rotating blade 8 Therefore, the tangential velocity CII becomes extremely large.

The water 11 is ejected from the ejection port 5 in the direction of the center line of the nozzle body 1, but as it rotates with a large tangential velocity Cu as described above, it opens in the shape of petals due to centrifugal force. That is, as shown in FIG. 1, water from the spout 5 is ejected as a cylindrical water film 1112 due to centrifugal force, and this water film 12 spreads into a petal shape due to the centrifugal force. Then, it gradually becomes thinner and breaks off, becoming a small water film 13 that is scattered around. By making the water film 13 smaller in this way, the sound of the water film 10 falling onto the water surface becomes smaller. Moreover, the water film 13 can be spread over a wide range by centrifugal force.

In addition, in the above, the case where the fluid rotating nozzle according to the present invention is used for a fountain is illustrated, but in addition to this,
It can be used for many purposes such as irrigation and aeration.

When used in Sa, it creates a smaller water film than conventional sprinklers, so it has the effect of not draining soil or damaging crops.

When using it for all at once, the water film 13 ejected from the fluid ejection port 5 may be sprinkled on the water surface.

Alternatively, by arranging the nozzle body 1 underwater and supplying air to the supply port 6, the above-mentioned tangential direction II degree Cu is applied to the air flow jetted into the water from the jet port 5, thereby performing underwater aeration. You can.

When such underwater aeration is performed, the air bubbles generated are small and spread over a wide range, resulting in a good aeration effect.

Effects of the Invention As described above, according to the present invention, due to the synergistic effect of the hollow conical nozzle body to which fluid is supplied from the supply port in the tangential direction and the rotating vanes provided inside this nozzle body, A large tangential velocity can be imparted to the fluid ejected from the fluid outlet to cause the fluid to open into petal shapes.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a fluid rotary nozzle according to an embodiment of the present invention when viewed from the front, and FIG. 2 is a cross-sectional view of the right-hand fluid nozzle of FIG. 1 when viewed from above. DESCRIPTION OF SYMBOLS 1... Nozzle main body, 5... Fluid spout, 6... Supply port, 8... Rotating vane. Agent Yoshihiro MorimotoFigure 2

Claims (1)

[Claims] 1. The nozzle body is formed into a hollow conical shape, and a fluid ejection port is provided at the top of the nozzle body in the direction of the center line of the cone, and the inside of the nozzle body is provided at the outer peripheral portion on the bottom side of the nozzle body. A supply port capable of supplying fluid in a tangential direction is provided in the nozzle body, and a driven rotary vane capable of imparting a tangential velocity to the fluid supplied into the nozzle body is provided inside the nozzle body. Features a rotating fluid nozzle.