JPH053229Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is an extinguisher that diffuses and sprays pressurized water to extinguish bubbles generated on the water surface of an aeration tank, discharge pipe, water conduit, etc. in water treatment equipment. This invention relates to a spray nozzle for foam equipment.

[Conventional technology] In water treatment equipment and other equipment, aeration tanks (mechanical,
Foaming is noticeable on the water surface of water pipes such as air type), discharge pipes, and water conduits. Therefore, bubble-proofing equipment is usually used to eliminate bubbles by spraying water from a spray nozzle onto the water surface where bubbles gather. The structure of the spray nozzle used in this defoaming equipment is generally such that pressurized water can be ejected in a fan shape from a slit of a constant width and sprayed water in a manner that hits the water surface.

[Problems that this invention aims to solve] As mentioned above, in conventional spray nozzles, the slit width for ejecting pressure water is constant (fixed), so the amount of water ejected is proportional to the pressure. If the pressure changes, the amount of water changes, but under the same pressure conditions it remains unchanged. Therefore, it is difficult to obtain the best defoaming effect by increasing or decreasing the amount of water injected, and if you want to change the amount of water injected depending on the foaming situation, temporarily stop operation and prepare separately. There was a problem in that it was inconvenient to replace the slit with one having a different width or to control the pressure water supply side to change the water pressure.

This invention solves the above problems and provides a water spray nozzle with variable slit width.

[Means for Solving the Problems] This invention attempts to provide a means for solving the above problems, and includes a hinge 6, a nozzle head 1 having a water guide hole 4 passing through the center. A nozzle cover 2 integrally equipped with a balance weight 7 is pivotally attached via a support shaft 10, and the water guide hole 4 is
The nozzle cover 2 is slidably fitted to the tip of the nozzle cover 2.
The nozzle metal fitting 5 is fitted therein and the gap L between the nozzle metal fitting 5 and the nozzle metal fitting 5 can be freely adjusted. The main idea is a spray nozzle for watering.

[Embodiment] The structure of the present invention will be explained with reference to the embodiment shown in the drawings. Reference numeral 1 is a nozzle head which has a water guide hole 4 passing through its center and a connecting threaded part 3 at its base end. It is provided.

Reference numeral 2 denotes a nozzle cover that covers the tip of the nozzle head 1, and is pivotally attached to the nozzle head 1 via a hinge 6 and a support shaft 10, and a balance weight 7 and a hanging hardware 8 are integrally provided.

A nozzle metal fitting 5 is slidably fitted to the tip of the water guide hole 4 of the nozzle head 1, and is slidable in the axial direction of the water guide hole 4 by means of a slide pin 11, and is connected to the nozzle cover 2. Opening gap L between
is adjustable.

Reference numeral 9 denotes a bolt-like locking knob for fixing the position of the nozzle metal fitting 5, which passes through the side of the nozzle head 1 so that its tip can move toward and away from the nozzle metal fitting 5. 12 is a guide groove for the slide pin 11.

[Function] Since this device has the above-mentioned configuration, when the nozzle head 1 is connected to a pressure water source via the threaded portion 3 and pressure water is supplied, pressure water is released from the gap between the tip of the nozzle head 1 and the nozzle cover 2. gushes out,
It is well known that water is sprayed in a fan shape and that if foreign matter becomes clogged, it can be removed by rotating the nozzle cover 2, but in the present invention, a sliding The nozzle hardware 5 is fitted freely, and the gap L between the tip of the nozzle hardware 5 and the nozzle cover 2 is adjustable. First, loosen the stop knob 9 and remove the slide pin 11.
The opening area of the nozzle tip can be increased or decreased by adjusting the gap L and then tightening the stop knob 9 to fix the position of the nozzle hardware 5. It is also possible to increase or decrease the amount of water injected.

Further, since the nozzle cover 2 and the balance weight 7 are integrally constructed, processing is easy.

[Effect] According to this invention, the water guide hole 4 penetrating through the center
The nozzle head 1 has a hinge 6 and a support shaft 10.
A nozzle metal fitting 5 to which a nozzle cover 2 integrally equipped with a balance weight 7 is pivotally attached via the nozzle metal fitting 5, which is slidably fitted to the tip of the water guide hole 4, and the gap L between the nozzle cover 2 and the nozzle cover 2 can be freely adjusted. At the same time as fitting the
By providing the slide pin 11 for moving the position of the nozzle hardware 5 and the stop knob 9 for fixing it, the opening gap L between the nozzle hardware 5 and the nozzle cover 2, that is, the slit width can be adjusted. When trying to change the amount of water injected in response to foam generation, it is possible to temporarily stop operation and replace with a separately prepared slit width of a different width, or to change the water pressure by controlling the pressure water supply side. There is no need to increase or decrease the amount of water injected under the same pressure, which has the effect of increasing the defoaming effect.

In addition, since the nozzle cover 2 and the balance weight 7 have an integral structure, processing is easy, and
There is also the additional effect of being able to withstand the pressure of the jetting water and keeping the set opening gap L constant.

[Brief explanation of the drawing]

The drawings are explanatory diagrams of an embodiment showing the structure of this invention, in which FIG. 1 is a side view, FIG. 2 is an end view of the nozzle head excluding the nozzle cover, and FIG. 3 is a sectional view of the main part. 1... Nozzle head, 2... Nozzle cover, 3
... Connection screw part, 4 ... Water guide hole, 5 ... Nozzle hardware, 6 ... Hinge, 7 ... Balance weight,
8...Hanging hardware.

Claims (1)

[Scope of utility model registration request] A nozzle cover 2 integrally equipped with a balance weight 7 is pivotally attached to a nozzle head 1 having a water guide hole 4 penetrating through the center via a hinge 6 and a support shaft 10, and is slidable on the tip of the water guide hole 4. A nozzle metal fitting 5 is fitted therein so that the gap L between the nozzle cover 2 and the nozzle metal fitting 5 can be freely adjusted, and a slide pin 11 for moving the position of the nozzle metal fitting 5 and a stop knob 9 for fixing the nozzle metal fitting 5 are fitted. A spray nozzle for watering that is characterized by: