JPH053210Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an automatic replenishment device for corrosive chemicals. More specifically, the present invention relates to an improvement in the structure of a device suitable for automatically replenishing a relatively small amount of a corrosive chemical solution, such as one made by dissolving a metal chloride.

(Prior art and its problems) Conventionally, as a device for automatically replenishing a relatively small amount of liquid, there is a known device in which, for example, a float mechanism such as a ball tap is provided inside a tank on the side to be refilled. .

This conventional device includes a valve attached to a water inlet drawn into the tank to be refilled, and a float that moves up and down in response to the water level in the tank to be refilled.
It consists of a valve and a float arm that connects the float.

In such conventional devices, the lifting and lowering movement of the float is converted into the opening and closing movement of the valve using the lever structure of the float arm, so stress is concentrated around the float arm and a certain degree of strength is required, so metal materials are usually used. The main material is Therefore, there is a problem in that corrosive chemicals such as those made by dissolving metal chlorides cause corrosion in various parts of the device, making it impossible to perform its functions reliably.

In addition to this, there are also known water level detection means such as ultrasonic type or tuning fork type installed in the tank on the replenishing side, but these devices are bulky and are not suitable for replenishing small quantities. There's a problem.

(Purpose of the invention) The present invention was made in order to solve the above-mentioned problems, and its purpose is to provide a small-sized automatic chemical replenishment device with corrosion resistance.

(Structure of the invention) In order to achieve the above-mentioned object, the automatic replenishment device for corrosive chemicals according to the present invention uses a synthetic resin material, etc. to prevent corrosion caused by corrosive chemicals such as those made by dissolving metal chlorides. A chemical tank that is made of a material other than metal and stores corrosive chemicals for replenishment;
A chemical tank installed below the chemical tank and supplied with a corrosive chemical; a hose arranged from the chemical tank to the bottom of the chemical tank through which the corrosive chemical to be replenished flows; and the hose connection at the bottom of the chemical tank. A corrosive chemical flow path provided vertically from the inside of the chemical tank to the inside of the chemical tank, a valve built into the flow path that cuts off the flow of the corrosive chemical, and a corrosive A configuration is adopted that includes a float that moves up and down in response to the water level of the chemical solution, and a control rod that is vertically fixed to the bottom of the float and inserted into the flow path to open and close the valve.

(Function) In the above-described configuration, constructing each member from a material other than metal prevents each member from being corroded by corrosive chemicals and achieves the purpose of providing corrosion resistance.

In addition, installing the chemical tank that is the source of corrosive chemicals above the chemical tank on the supplied side is
To achieve the purpose of downsizing the device by allowing the corrosive chemical to flow down naturally and omitting power for replenishment, making it suitable for relatively small amounts of replenishment.

Furthermore, it is possible to create a flow path for the corrosive chemical solution perpendicular to the chemical tank and incorporate valves, etc. to interrupt the flow of the corrosive chemical solution only by vertically moving the members in series. This solves the problem of strength due to the structure and provides a simple float mechanism, thereby achieving the objective of downsizing the device in the same way as described above.

(Example) Hereinafter, an example of the automatic replenishment device for corrosive chemical liquid according to the present invention will be described based on the drawings.

The illustrated embodiment shows one that is combined with an atomizing device A and incorporated into a flower gas generating device.

As shown in FIG.
, an ultrasonic generator AB attached to the bottom of the chemical tank AA, a gas introduction pipe AC, and a mixed gas discharge pipe AD connected to the top of the chemical tank AA, respectively.

This atomizer A atomizes a corrosive chemical W stored in a chemical tank AA with an ultrasonic generator AB, and mixes it with gas G introduced into the chemical tank AA from a gas introduction pipe AC to generate a mixed gas. MG is discharged from the mixed gas discharge pipe AD. A burner (not shown) for burning the mixed gas MG is connected to the mixed gas discharge pipe AD, and the mixed gas MG is
A colored flame (flower gas) is formed by the flame reaction of the metal chloride contained in the chloride.

The automatic replenishment device for corrosive chemicals according to the present invention is the first
As is clear from the figure, the chemical liquid tank AA of the atomizing device A
The corrosive chemical solution W is supplied to the tank, and its main parts are shown enlarged in FIG.

The automatic replenishment device for corrosive chemicals according to the present invention consists of a chemical tank 1, a chemical tank 2, a hose 3, a flow path 4, a valve 5, a float 6, and a control rod 7, each of which is made of a material other than metal, For example, it is made of a synthetic resin material that can be obtained relatively cheaply, and by being made of a material other than metal, it is prevented from being corroded by metal chlorides contained in the corrosive chemical solution W. .

The chemical liquid tank 1 is for storing a corrosive chemical liquid W for replenishment, and has an input port 11 for introducing the corrosive chemical liquid W at the top, and a connection port for connecting a hose 3, which will be described later, at the bottom. 12 are provided.

The chemical liquid tank 2 is a side to which the corrosive chemical liquid W is replenished, and is installed below the chemical liquid tank 1. This chemical liquid tank 2 is the chemical liquid tank AA of the atomization device A.
In order to prevent the float 6 described below from being affected by the flow pressure of the gas G and increase the mixing efficiency of the gas G and the atomized corrosive chemical solution W,
A partition wall 22 having a passage portion 21 in a part thereof is provided to define the partition wall 22 . Further, at the bottom of the chemical liquid tank 2, there are provided a threaded portion 23 for providing a flow path 4, which will be described later, and a guide 24, which guides the vertical movement of a float 6, which will be described later.

The hose 3 connects the connection port 12 of the chemical tank 1 and the bottom of the chemical tank 2 (connection port 45 of the flow path 4, which will be described later).
The corrosive chemical solution W flows down by gravity inside the chemical solution tank 1 and is supplied to the chemical solution tank 2.

The flow path 4 is vertically provided from the bottom of the chemical tank 2 toward the inside so that the corrosive chemical W flows upward, and is formed by assembling two nuts 41 and 42 having a communication hole in the center. has been done. Among these nuts 41 and 42, one nut 41 is O
The other nut 42 is screwed and fixed to the threaded part 23 of the chemical liquid tank 2 via a ring 43, and the other nut 42 is screwed and fixed to the nut 41 via an O-ring 44 with a storage gap for the valve 5, which will be described later. has been done. In addition,
The lower nut 42 has a connection port 4 for the hose 3.
5 is provided.

The valve 5 is installed inside the flow path 4 to interrupt the flow of the corrosive chemical solution W.
The two nuts 41, 4 forming the flow path 4
It is located vertically movably within the storage gap between the two. This valve 5 has a plate-like Teflon main body 51.
It has a structure in which a push-up bar 52 with a T-shaped cross section is attached to the top of the push-up bar 52.The T-shaped upper surface of the push-up bar 52 is glued to the main body 51, and the T-shaped foot is inserted into the central communication hole of the nut 42 on the lower side. It is designed so that it can easily receive the flow pressure of the corrosive chemical solution W.

The float 6 is housed inside the chemical liquid tank 2, and floats on the corrosive chemical liquid W so as to rise and fall in accordance with the water level of the corrosive chemical liquid W. The floating of the float 6 is restricted by the guide 24 of the chemical tank 2 to vertical movement.

The control rod 7 is fixed to the lower part of the float 6 so as to operate integrally with the operation of the float 6, and its lower side is inserted into the communication hole of the nut 41 on the upper side of the flow path 4 and lowered. When this occurs, the valve 5 is pressed down.

In such an embodiment, when the water level of the corrosive chemical solution W in the chemical solution tank 2, AA decreases, the float 6 descends in conjunction with this, and the control rod 7 also descends together. As a result, the valve 5 is pushed down by the control rod 7 and moves freely between the nuts 41 and 42, causing the corrosive chemical W stored in the chemical tank 1 to
The water naturally flows down due to the water level difference with the corrosive chemical W in the chemical tank 2, passes through the hose 3 and the flow path 4, and flows into the chemical tank 2.
flows into the interior of. Conversely, when the water level of the corrosive chemical W in the chemical tank 2 rises, the float 6 rises in conjunction with this, and the control rod 7 also rises together. As a result, the control rod 7 separates from the valve 5, and the valve 5 is pressed against the upper nut 41 by the flow pressure of the corrosive chemical W and its own buoyancy, and the corrosive chemical W flows into the chemical tank 2. to prevent Therefore, by automatically replenishing and stopping the corrosive chemical W, the water level of the corrosive chemical W inside the chemical tank 2 is always kept constant, and this water level is maintained at a constant level by the control rod 7. It will be adjusted by the length setting.

Such automatic replenishment of the corrosive chemical W is performed by vertically moving each member in series, and no special stress concentration or friction occurs in each member. Even if metal materials are not used, no strength problems will occur. Moreover, the serial arrangement of each member makes the structure compact and functions smooth.

(Effects of the invention) As described above, the automatic replenishment device for corrosive chemicals according to the present invention has corrosion resistance that prevents corrosion caused by corrosive chemicals because its constituent members are made of materials other than metal. It has the effect of The effect of this corrosion resistance property is that the reliability and smoothness of the device's functions are maintained and the durability is improved.

Further, by omitting the power for replenishment and making each member more compact by arranging them in series, the device can be made smaller. And, due to this miniaturization effect and the selection of the material,
This has the advantage that it can be easily and inexpensively manufactured using synthetic resin or the like.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing an embodiment of the automatic replenishment device for corrosive chemicals according to the present invention, and FIG. 2 is an enlarged view of the main parts of FIG. 1. 1... Chemical tank, 2... Chemical tank, 3... Hose, 4... Channel, 5... Valve, 6... Float, 7... Control rod, W... Corrosive chemical solution.

Claims (1)

[Scope of utility model registration request] A chemical tank that stores corrosive chemicals for replenishment and is made of materials other than metals such as synthetic resin to prevent corrosion caused by corrosive chemicals such as dissolved metal chlorides, and a chemical tank. A chemical liquid tank installed below the chemical liquid tank and supplied with the corrosive chemical liquid, a hose arranged from the chemical liquid tank to the bottom of the chemical liquid tank through which the corrosive chemical liquid to be replenished flows, and a hose connected to the hose connection part at the bottom of the chemical liquid tank. A flow path for the corrosive chemical solution provided vertically toward the inside of the chemical tank, a valve built into the flow path to cut off the flow of the corrosive chemical solution, and a water level of the corrosive chemical solution provided inside the chemical tank. An automatic replenishment device for corrosive chemicals, comprising: a float that moves up and down in accordance with the flow; and a control rod that is vertically fixed to the bottom of the float and inserted into the flow path to open and close a valve.