JPH052753U - Nozzle device - Google Patents

Abstract

(57) [Abstract] [Purpose] By changing the appearance of the water jetted from the nozzle, the visual effect of the fountain can be enhanced and the attention can be increased, and it can be applied to other uses such as defoaming or water sprinkling. It can be so. [Structure] A plurality of systems of water guide passages 2, 3, 4 having different flow states of high pressure water are connected to the inlet of the fountain nozzle 1, and high pressure water is supplied to the fountain nozzle 1 in an order selected from these water guide passages. I'm trying to make it gush out.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a nozzle device suitable for a fountain nozzle, a defoaming nozzle, a water spray nozzle, or the like.

[0002]

[Prior Art]

 Conventional nozzle arrangements generally consist of nozzles with a uniform circular passage cross section. However, when such a nozzle is used as a fountain nozzle, changes in the form of the fountain are limited only to fluctuations in the jet height of water that occur due to changes in the supply water pressure. In other words, although it is possible to change the jet height of water, it is impossible to change the shape of a rod-shaped fountain with a regular circular cross-section that corresponds to the cross-sectional shape of the passageway of the nozzle to different shapes. Can not be produced. Therefore, there are drawbacks that the visual effect is poor and the attention is low. Moreover, it can be said that a rod-shaped fountain with a regular circular cross-section ejected from this type of nozzle is not suitable for applications such as defoaming or water spraying.

[0003]

[Problems to be solved by the device]

 The problems to be solved are that it is not possible to produce diversified forms of fountain and that it is not suitable for applications such as defoaming or watering.

[0004]

[Means for Solving the Problems]

 According to the present invention, at least two conduits having different flow states of high-pressure water are connected to the inlet of the fountain nozzle, and the high-pressure water is supplied to and ejected from the fountain nozzle in the order selected from these conduits. Characterized by the composition, by changing the form of the fountain, the visual effect was enhanced, the attention was increased, and the purpose of defoaming or adapting to watering was realized.

[0005]

According to the present invention, when high pressure water is supplied to the nozzle by selecting the system of the water guide passage, the form of the fountain is determined by the flow of the high pressure water passing through the selected water guide passage. That is, it is possible to eject water from one fountain nozzle in various forms according to the high-pressure water flow state of each water conduit. Of course, it is possible to change the jet height of water by changing the supply water pressure.

[0006]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a system diagram of a nozzle device, in which the inlets of a fountain nozzle 1 are connected to three systems of water guide passages 2, 3, 4 consisting of a first water guide passage 2, a second water guide passage 3 and a third water guide passage 4. Has been done. These water guide passages 2, 3 and 4 are branched from a main passage 5, and the main passage 5 is connected to an outlet of a high pressure water supply source (pump) 6. Further, in each of the water guide passages 2, 3 and 4, there are provided water fountain control valves V1, V1 and V3, which are electromagnetic valves or motor operated valves, and the water fountain control valves V1, V1 and V3 are connected from the controller 7. It is opened and closed sequentially based on the output opening and closing control signal. A plurality of (two in the illustrated example) 90-degree bends or elbows 2A, 2B are brought close to each other in the first water guide passage 2 in the vertical direction, and the flow direction is three-dimensionally changed so that the high-pressure water flow is biased. A crank-shaped non-uniform flow generation section 20 is formed, and the crank-shaped non-uniform flow generation section 20 is arranged near one inlet of the fountain nozzle 1 so that the non-uniform high-pressure water flows along the axis (vertical axis) of the fountain nozzle 1. It is designed to be introduced into one of the entrances from the horizontal direction orthogonal to the. Further, the second water guide passage 3 is formed in a uniform circular cross section that does not cause uneven flow in the flow state of high-pressure water, is connected to the other inlet of the fountain nozzle 1, and extends from the lower side along the axis of the fountain nozzle 1. It is designed to be introduced at the other entrance. Further, the third water guide passage 4 is provided at the other inlet of the fountain nozzle 1 by providing a drift generating portion 4A formed by a spiral groove or a spiral ridge on the inner surface near the other inlet of the fountain nozzle 1. They are connected to each other, and the non-uniform flow high-pressure water is introduced from the downward direction along the axis of the fountain nozzle 1 to the other inlet.

With such a configuration, when the fountain control valve V1 is opened by the opening / closing control signal output from the controller 7 and the fountain control valves V2 and V3 are closed, the vertical direction from the first water guide passage 2 is increased. The high-pressure water that has been deflected by the crank-shaped drift generator 20 is horizontally introduced into one inlet of the fountain nozzle 1. The deflected high-pressure water introduced from the horizontal direction to the other inlet is diverted immediately after being introduced, being redirected at right angles to the upward flow. As a result, the axial velocity component of the water ejected from the fountain nozzle 1 is smaller as it is closer to the one inlet, and is larger as it is farther from the one inlet. Therefore, as shown in FIG. 2, the ejection height H is based on the supply pressure of the high-pressure water supply source 6 (see FIG. 1), and in the region H1, the cross-sectional shape corresponds to the passage cross-sectional shape of the fountain nozzle 1. 3 shows a regular circular rod shape, and in the area H2 above it, the fountain in a state in which it diffuses and falls from the side with a small axial velocity component, that is, the axial direction of the water ejected from the fountain nozzle 1. It is possible to execute a unique fountain formed in the area H2 with a vertical inclination corresponding to the difference in velocity component, and it is possible to enhance the visual effect and improve the attention.

Further, when the fountain control valve V2 is opened by the opening / closing control signal output from the controller 7 and the fountain control valves V1 and V3 are closed, high-pressure water in which no drift is generated from the second water guide passage 3 is generated. It is introduced into the other inlet of the fountain nozzle 1 from below along the axis. As a result, as shown in FIG. 4, the jet height H is based on the supply pressure of the high-pressure water supply source 6 (see FIG. 1), and in the region H1, the cross-sectional shape corresponds to the passage cross-sectional shape of the fountain nozzle 1. It is possible to execute a fountain having the shape of a regular circular rod as shown in FIG. 3 and diffusing and dropping like an umbrella in the region H2 above it, that is, a normal fountain.

Further, when the fountain control valve V3 is opened by the opening / closing control signal output from the controller 7 and the fountain control valves V1 and V2 are closed, a spiral groove or a spiral convex is discharged from the third water guide passage 4. The high-pressure water, which is diverted into a flow having a velocity component in the circumferential direction by the uneven flow generating portion 4A made of a strip, is introduced into the other inlet of the fountain nozzle 1 from below along the axis. As a result, the introduced high-pressure water has a circumferential velocity component and is ejected from the fountain nozzle 1. Therefore, as shown in FIG. 5, in a region H1 having a jet height H based on the supply pressure of the high-pressure water supply source 6 (see FIG. 1) and having a relatively low height, the cross-sectional shape is the passage of the fountain nozzle 1. It has a perfect circular rod shape as shown in Fig. 3, which corresponds to the cross-sectional shape. In a region H2 with a high height above this, due to the influence of the circumferential velocity component, it largely spreads like a petal and falls. It is possible to perform a splendid fountain in the form that it does, enhance the visual effect and raise the attention.

In the above-described embodiment, the water conduits 2, 3 and 4 of three systems having different flow states of high-pressure water are connected to the inlet of the fountain nozzle 1, and the order selected from these water conduits 2, 3, and 4. In the above description, the high pressure water is supplied to the fountain nozzle 1, but the water guide passage connected to the inlet of the fountain nozzle 1 is not limited to the three systems described in the embodiment. Alternatively, it may be a configuration in which two or more than four systems are connected. In addition, instead of the crank-shaped drift generating portion 20 that changes the flow direction in three dimensions by two 90-degree bends or elbows 2A and 2B, or the drift generating portion 4A that is formed by a spiral groove or spiral convex strip, By forming or attaching the non-uniform flow generation section having the above structure in the water conduit, various fountain modes can be implemented. It is also possible to adapt it to defoaming or watering by selecting the ejection mode.

[0011]

[Effect of the device]

 As described above, according to the present invention, by selecting a water conduit of a system having a different flow condition and supplying high pressure water to the fountain nozzle, various types of high pressure water passing through the selected water conduit can be selected. Unlike conventional nozzles, the water can be ejected in the form of a figure, so that the visual effect of the fountain can be enhanced and the degree of attention can be improved, and it can be adapted to defoaming or sprinkling water. It has the advantage that it can.

[Brief description of drawings]

FIG. 1 is a system diagram showing an embodiment of the nozzle device of the present invention.

FIG. 2 is an explanatory view of a state of a fountain when the first water guide passage is opened.

FIG. 3 is an enlarged sectional view taken along the line AA of FIG.

FIG. 4 is an explanatory view of a state of a fountain when the second water guide passage is opened.

FIG. 5 is an explanatory diagram of a fountain state when the third water guide passage is opened.

[Explanation of symbols]

 1 Fountain Nozzle 2 1st Water Conduit 3 2nd Water Conduit 4 4 3rd Water Conduit

Claims (1)

[Claims for utility model registration] [Claim 1] At least two systems of water passages having different flow states of high-pressure water are connected to the inlet of the fountain nozzle, and high pressure is applied to the fountain nozzle in the order selected from these water passages. A nozzle device configured to supply and jet water.