JP3208527B2 - Aeration / sprinkler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aeration / sprinkling apparatus capable of simultaneously jetting and aeration of a transparent water film spreading in a cone shape.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 4, a water chamber 2 is provided inside a nozzle body 1 formed in a cylindrical shape having a uniform bottom and a bottom.
Is provided at the center of the ceiling 3, and the ejection port 3 in the direction of the axis C is provided.
A is provided. Further, a cylindrical space is formed on the axis C from the base end of the nozzle body 1 on the bottom 8 side to the ejection port 3A.
The space 4 is provided, and its tip is slightly projected from the ejection port 3A to form an annular space 5 between the outer periphery of the spacer 4 and the inner periphery of the ejection port 3A. By providing the annular wall 6 extending by H, the annular space 5 is extended. On the other hand, the applicant of the present invention has proposed a watering device in which a fluid supply port 7 in the tangential direction is provided at a base end of the nozzle body 1 on the side of the bottom 8 through the peripheral wall 1a.

According to this type of watering apparatus, the fluid supply port 7
Is connected to a fluid supply source (pump) (not shown) to supply high-pressure water, so that the high-pressure water entering the water chamber 2 of the nozzle body 1 in a tangential direction rotates inside the water chamber 2 and has a large tangent. The spouted water is spouted from the annular space 5 at a high speed, and the spouted water is spun at high speed in the radial direction of the nozzle body 1 due to the centrifugal force generated by the high-speed swirling, thereby performing water spraying of a transparent water film spreading in a cone shape.

[0004] However, the above conventional water sprinkling device has a water sprinkling function for improving the degree of attention, but does not have an aeration function for actively purifying water and improving water quality.

[0005]

That is, although the conventional water sprinkling apparatus has a water sprinkling function for improving the degree of attention, it has an aeration function for actively purifying the water and improving the water quality. Absent. Therefore, an object of the present invention is to provide an aeration / sprinkling device having both a water spraying function for increasing the degree of attention and an aeration function for actively purifying water and improving water quality. It was done.

[0006]

According to the first aspect of the present invention,
A first jet port in the axial direction is provided at the upper central portion of the bottomed cylindrical nozzle body, and the nozzle body is provided with a fluid supply port oriented in a tangential direction of the nozzle body. It is characterized by having two jet ports. According to the first aspect of the present invention, the first jet port of the nozzle body is installed in the water such as a pond with the first jet port exposed above the water surface, and high-pressure water is supplied from the fluid supply port into the nozzle body. The high-pressure water tangentially entering the nozzle body from the fluid supply port rotates inside the nozzle body and has a large tangential velocity and is ejected from the first ejection port as an annular water flow. The spouted annular water flow is swirled at high speed in the radial direction of the nozzle body by the centrifugal force generated by the high speed swirl and spreads in a cone shape. On the other hand, when the water supplied from the fluid supply port rotates inside the nozzle main body, a space portion where water does not exist at the center of the nozzle main body is axially moved from the first jet port to the second jet port.
It is formed over the spout. Since this space has a low pressure, air (atmosphere) is sucked into the space from the first outlet, and the sucked air blows out into the water from the second outlet to perform aeration.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention; FIG. 1 is a longitudinal sectional view showing an embodiment, and FIG. 2 is a sectional view taken along line AA of FIG. 1. In these figures, a nozzle body 1 formed into a bottomed cylindrical shape having a uniform inner diameter is shown. A water chamber 2 is provided inside, and a first outlet 3A in the direction of the axis C is provided at the center of the ceiling. On the other hand, at the base end of the nozzle body 1 on the bottom 8 side, a tangential fluid supply port 7 is provided through the peripheral wall 1a, and a second jet port 8A is provided through the bottom 8 in the direction of the axis C. ing.

With such a configuration, the nozzle main body 1 is installed with the first jet port 3A of the nozzle main body 1 exposed above the water surface WL of the pond 10. When high-pressure water is fed into the fluid supply port 7 in this state, the fluid that has entered the nozzle body 1 from the fluid supply port 7 in a tangential direction rotates in the water chamber 2 and has a high tangential velocity and the first jet. The outlet 3A jets out as an annular water flow, and the jetted annular water flow is jetted as a high-speed swirling flow S that spreads in a cone shape in the radial direction of the nozzle body 1 due to centrifugal force generated by high-speed swirling. On the other hand, the fluid supply port 7
Is rotated inside the water chamber 2 so that a space 11 where water does not exist is formed in the center of the water chamber 2 from the first jet port 3A to the second jet port 8A along the axial direction. Is done. Since the space 11 has a low pressure, air is sucked into the space 11 from the first jet port 3A, and the sucked air can be blown out into the water from the second jet port 8A to perform aeration. In other words, the degree of attention can be improved by watering, and the water quality can be improved by positively purifying the water in the pond 10 by aeration.

FIG. 3 is a longitudinal sectional view showing another embodiment, and the same or corresponding parts as those of the embodiment of FIG. 1 are denoted by the same reference numerals, and detailed description is omitted. In FIG.
An intake pipe 9 is arranged on the axis C of the first ejection port 3A and the second ejection port 8A, and its leading end inlet 9A is connected to the first ejection port 3A.
From the outer periphery of the intake pipe 9 and the first ejection port 3A.
By forming an annular space 5 with the inner periphery of the first nozzle and providing an annular wall 6 extending by the height H above the first ejection port 3A, the annular space 5 is extended. On the other hand, a rear end outlet 9B of the intake pipe 9 faces the second outlet 8A.

With such a configuration, the nozzle main body 1 is installed with the first jet port 3A of the nozzle main body 1 exposed above the water surface WL of the pond 10. When high-pressure water is fed into the fluid supply port 7 in this state, the fluid entering the nozzle body 1 from the fluid supply port 7 in a tangential direction rotates in the water chamber 2 and has a large tangential velocity and an annular space. 5, a high-speed swirling flow S that spreads in a cone shape in the radial direction of the nozzle body 1 due to the centrifugal force generated by the high-speed swirling and jets. On the other hand, when the water supplied from the fluid supply port 7 rotates inside the water chamber 2, the pressure at the center of the water chamber 2 decreases.
Since the outlet 9B of the intake pipe 9 faces this reduced pressure portion, the inside of the intake pipe 9 is made negative pressure and sucks air. The sucked air can be blown out into the water from the second outlet 8A to perform aeration.

In the embodiment shown in FIGS. 1 and 2, a description is given of a configuration in which the second injection port 8A penetrating through the bottom 8 and directed in the direction of the axis C is provided. As shown by an imaginary line, an annular wall 10 extending by the height H may be provided below the second ejection port 8A.

[0012]

As described above, according to the first aspect of the present invention, water is sprayed from the first jet port, and
By ejecting the air from the ejection port, both the water spraying function and the aeration function can be simultaneously performed. In other words, the degree of attention can be improved by watering, and the water in the pond can be positively purified by aeration to improve the water quality. Moreover, since the structure is simple, manufacture is extremely easy.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the invention described in claim 1.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a longitudinal sectional view showing another embodiment of the invention described in claim 1.

FIG. 4 is a longitudinal sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Nozzle main body 3 Nozzle main body ceiling (upper part of nozzle main body) 3A first jet port 7 fluid supply port 8 bottom of nozzle main body (lower part of nozzle main body) 8A second jet port C Axis line of nozzle main body

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) C02F 3/20 C02F 3/24 B01F 3/04

Claims (1)

(57) [Claims] An axial first outlet is provided at an upper central portion of a bottomed cylindrical nozzle body, a fluid supply port is provided in the nozzle body in a tangential direction of the nozzle body, and a lower part of the nozzle body is provided. And a second spout in the axial direction.