JPH10165794A - Ozone water making apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent back flow water from flowing in an ozone generator by opening a check valve by the pressure of the water flowing backward from an ozone dissolver to an ozone supply pipeline to be stored in a manifold to discharge the back flow water from a drain hole. SOLUTION: There is such a case that water flows backard from an ejector to an ozone supply pipeline 17b. The back flow water to the ozone supply pipeline 17b flows in a manifold 21 to be stored therein. When the amt. of the back flow water stored in the manifold 21 increases, an umbrella-shaped check valve 24 is pushed down by the pressure thereof to open a drain hole 23 and the drain hole meets with an outflow pipeline through a discharge pipeline 25. The check valve 24 prevents the inflow of air from the drain hole 23 when the ejector sucks ozone. By this constitution, the generation of trouble such that the water flowing backward from the ejector to the ozone supply pipeline 17b flows in an ozone generator to prevent the generation of ozone can be certainly prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ozone water producing apparatus.

[0002]

2. Description of the Related Art Ozone generated by an ozone generator a is supplied to an ozone dissolver c through an ozone supply line b, and is dissolved in raw water supplied under pressure to the ozone dissolver c to produce ozone water. The ozone water producing apparatus is provided with a check valve d in an ozone supply pipe b as shown in FIG.
So that the raw water did not flow backward.

[0003]

However, when the raw water supplied under pressure is stopped and very weak water pressure is applied to the check valve d, or when the supply of ozone water is stopped and pressure is applied to the check valve d. In such a case, when the sealing property of the check valve d is deteriorated due to a change over time, there is a possibility that water flowing backward through the check valve d flows into the ozone generator a and ozone is not generated. The present invention has been made in view of the above, and an object of the present invention is to provide an ozone water producing apparatus that prevents backflow water from flowing into an ozone generator.

[0004]

In order to achieve the above object, an ozone water producing apparatus according to the present invention supplies ozone generated by an ozone generator to an ozone dissolver through an ozone supply line. Dissolved in raw water supplied under pressure,
In an ozone water producing apparatus for producing ozone water, a manifold having a drain hole closed by a check valve is interposed in the ozone supply pipe, and the ozone dissolver flows backward to the ozone supply pipe and accumulates in the manifold. The check valve is opened by water pressure, and the backflow water is discharged from the drain hole.

[0005]

According to the ozone water producing apparatus having the above-mentioned structure, the water flowing backward from the ozone dissolver to the ozone supply pipe flows into and accumulates in the manifold. Then, the check valve for closing the drain hole is opened by the pressure of the water, and the backflow water is discharged out of the manifold. Therefore, it is possible to eliminate the possibility that the backflow water flows into the ozone generator and ozone is not generated.

[0006]

Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a schematic configuration diagram of an ozone water producing apparatus 1 according to the present invention. The surplus ozone separation device 2 of the ozone water production device 1 includes an ozone water tank 5 having a water supply port 3 on the upper side and a discharge port 4 on the lower side, and a float chamber 6 disposed on the upper surface thereof. You. Ozone water tank 5
And the float chamber 6 communicate with each other.

On the upper surface of the float chamber 6, the float chamber 6
An opening / closing valve 8 is provided, which is closed by floating of the float 7 following the water level of the above, and opened by descending. The outflow pipe 9 is connected to the upper end of the float chamber 6. Outflow line 9
Is provided with a branch conduit 10 that branches upward on the way. An ozone decomposing device 1 is provided at the end of the branch pipe 10.
1 are connected. The ozone decomposer 11 reduces excess ozone separated by the excess ozone separator 2 into oxygen and discharges it to the atmosphere. In addition, check valve 1 is installed in outflow line 9.
2 are interposed.

A raw water supply pipe 14 having one end connected to a water tap 13 is connected to the water supply port 3 of the ozone water tank 5. An ejector (ozone dissolving device) 15 having a connection portion branched in a T-shape is interposed in the raw water supply pipe 14. An ozone supply line 17 is connected to a connection portion of the ejector 15 provided with the check valve 16. The ejector 15 dissolves ozone supplied from the ozone generator 18 into tap water to produce ozone water. The ozone generator 18 is connected to an air supply pipe 20 to which a dryer 19 is connected at the tip.

A manifold 21 for preventing backflow is interposed in the ozone supply line 17. The manifold 21
Is provided with three connecting beaks 22a to 22c.
An ozone supply pipe 17a on the ozone generator 18 side is connected to the connection beak 22a at the upper end, and an ozone supply pipe 17b on the ejector 15 side is connected to the connection beak 22b on the side. As shown in FIG. 2, connecting beaks 22a and 22b
It communicates inside the manifold 21. A drain hole 23 communicating with the connecting beak 22c is formed at the lower end of the manifold 21. The drain hole 23 is closed by an umbrella type check valve 24. The discharge pipe 25 is connected to the connecting beak 22c. The discharge line 25 joins the outflow line 9 downstream of the check valve 12.

Also, the discharge port 4 of the ozone water tank 5 has
The ozone water discharge pipe 26 is connected. A discharge nozzle 28 that is opened and closed by an opening and closing cock 27 is provided at the tip of the ozone water discharge pipe 26.

The operation of the ozone water producing apparatus 1 having the above configuration will be described below. Operate the opening / closing cock 27 to discharge the nozzle 2
When opening 8, pressurized tap water supplied from faucet 13 which is always open flows in ejector 15 at high speed. At this time, the connection portion of the ejector 15 has a negative pressure. Therefore, the ozone supplied from the ozone generator 18 is supplied to the ozone supply pipe 17a → the connecting beak 22a → the manifold 21 →
The connection beak 22b is sucked into the ejector 15 via the ozone supply pipe 17b, and is dissolved and mixed in tap water. The ozone water flows into the ozone water tank 5 and is discharged from the discharge port 4 via the ozone water discharge pipe 26 through the discharge nozzle 28.
Dry air that has passed through a dryer 19 is supplied to the ozone generator 18 from an air supply line 20 by the suction force of the ejector 15.

On the other hand, in the ozone water flowing into the ozone water tank 5, ozone that has not been completely dissolved is mixed in a bubble state. The ozone in the bubble state is supplied to the ozone water tank 5
Flow into the float chamber 6. When excess ozone separated and not dissolved in the tap water flows into the float chamber 6 and accumulates, the buoyancy of the float 7 decreases. For this reason, the float 7 is lowered and the on-off valve 8 is automatically opened, and the excess ozone flows into the ozone decomposer 11 from the outflow line 9 through the branch line 10, and is reduced to oxygen and released into the atmosphere. Released. At this time, the water flowing out of the float chamber 6 together with the excess ozone is discharged through the check valve 12 of the outflow pipe 9.

However, when the faucet 13 is closed and the supply of tap water is stopped, if a very weak water pressure is applied to the check valve 16 or the opening / closing cock 27 is operated to close the discharge nozzle 28, Stop supply and check valve 16
When the pressure is applied to the pressure sensor, or when the sealing property of the check valve 16 is deteriorated due to aging, water may flow backward from the ejector 15 to the ozone supply pipe 17b through the check valve 16. The backflow water flowing into the ozone supply pipe 17b flows into the manifold 21 and accumulates. When the amount of backflow water accumulated in the manifold increases, the pressure causes the umbrella-type check valve 24 to move,
It is pushed down to open the drain hole 23 and joins the outflow pipe 9 via the discharge pipe 25. The check valve 24 is connected to the ejector 1
When the ozone 5 sucks ozone, it prevents air from flowing through the drain hole 23.

As described above, the water flowing backward from the ejector 15 to the ozone supply pipe 17b is
It is possible to reliably prevent a problem that the ozone is not generated by flowing into the air.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an ozone water producing apparatus 1 of the present invention.

FIG. 2 is a cross-sectional view of the manifold 21.

FIG. 3 is a schematic configuration diagram of a conventional ozone water producing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Ozone water production apparatus 14 ... Raw water supply line 15 ... Ejector 17, 17a, 17b ... Ozone supply line 18 ... Ozone generator 21 ... Manifold 23 ... Drain Hole 24 ... Check valve

Claims (1)

[Claims] 1. An ozone water producing apparatus for producing ozone water by supplying ozone generated by an ozone generator to an ozone dissolver through an ozone supply pipe and dissolving the raw water supplied to the ozone dissolver under pressure. In the ozone supply pipe, a manifold having a drain hole closed with a check valve is interposed, and the check valve is opened by the pressure of water flowing backward from the ozone dissolver to the ozone supply pipe and remaining in the manifold. Discharging the backflow water from the drain hole.