JPH073084Y2 - Pressure treatment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a pressure treatment device, and more specifically, it can automatically and reliably fill a pressure vessel with a pressurized fluid.
The present invention relates to a pressure processing device that can perform pressure processing in such a state.

[Problems to be Solved by Conventional Techniques and Inventions] In a conventional pressure processing apparatus, as shown in FIG.
A manual valve 23 and a flow meter 24 are connected to the pipeline 22 on the downstream side of the pressure vessel 21, and the pump 25 as a pressure fluid supply source is operated for a certain period of time while the valve 23 is kept open. After visually observing the flow meter 24 and confirming that the air was exhausted, the valve 23 was closed and the pressure vessel 21 was in a pressurized state.

However, in the case of the conventional device described above, the air flows through the conduit 22.
Since the observer's visual confirmation was used to confirm that the pressure vessel had come out, there was a problem that the pressurization process might be started in a state where individual differences occurred and the air in the pressure vessel was not completely removed. It was

Therefore, an object of the present invention is to provide a pressure treatment device capable of automatically and reliably filling the pressure vessel with a pressurized fluid and constantly performing pressure treatment in such a state. Is.

[Means for Solving the Problems] The present invention for solving the above problems includes a pressure vessel in which a pressure treatment is performed by pressurizing a pressurized fluid from a pressurized fluid supply source, A pipeline connected to the pressure vessel, a normally-open type on-off valve connected to this pipeline, and pressurized fluid supplied from the pressure vessel via the on-off valve fills the pipeline and the on-off valve. And a control means connected to the pipeline for detecting the fact that the on-off valve is closed.

[Operation] The operation of the pressure treatment device having the above-described configuration will be described below.

The pressurized fluid from the pressurized fluid supply source of this device is sent to the pressure vessel, and further passes through the normally open type on-off valve via the pipe line connected to the pressure vessel to reach the control means.

At this time, the control means detects that the pressurized fluid has filled the inside of these pipelines and the inside of the on-off valve, and drives the on-off valve to close.
As a result, pressurization in the pressure container by the pressurized fluid starts in a state where the air in the range from the pressure container to the on-off valve via the pipeline is automatically removed.

[Embodiment] An embodiment of the present invention will be described in detail below.

The pressure treatment device 1 shown in FIG. 1 includes a pipeline 22 connected to the pressure vessel 21, a normally-open type on-off valve (air operated valve) 3 connected to the pipeline 22, and the pipeline. It is detected that the pressurized fluid such as water, which is connected to the pressure vessel 21 and is supplied from the pressure vessel 21 through the on-off valve 3, fills the inside of the pipeline 22 and the on-off valve 3, and drives the on-off valve 3 to close. It is provided with a level tank 4 as control means, and a drain solenoid valve 6 connected between the bottom of the level tank 4 and a fluid tank 5 for storing pressurized fluid.

The drain solenoid valve 6 is excited in synchronism with the closing drive of the on-off valve 3 by the level tank 4, and is turned from closed to open.

As shown in FIG. 2, the level tank 4 is a box-shaped tank main body 7 having an open upper portion, and the tank main body 7
A lid 8 for covering the upper part of the container, an inlet socket 9a for connecting the conduit 22 on the pressure vessel 21 side attached to the tank body 7, an outlet socket 9b for connecting the conduit 22 on the fluid tank 5 side, A drain socket 9c for connecting the solenoid valve for drain 6; a shield plate 10 having an upper end fixed to the lid 8 and a lower end facing a position slightly above the bottom of the tank body 7;
It is screwed onto the lid body 8 by using a nut 11, and detects the level (water level) of the pressurized fluid in the level tank 4,
A level sensor 12 for sending a detection signal to the on-off valve 3 and the drain solenoid valve 6 to drive the on-off valve 3 to close and to drive the drain solenoid valve 6 to open is provided.

The capacity of the level tank 4 is appropriately selected in consideration of the capacity of the pressure vessel 21 and the operating time of the pump 25.

Next, the operation of the pressure processing device 1 described above will be described.

The pump 25 is started to suck the pressurized fluid from the fluid tank 5, and the pressurized fluid is sent to the pressure vessel 21, the pipe 22, the normally open type on-off valve 3 and the level tank 4. Thereby, in the pressure vessel 21,
The pressurized fluid gradually flows into the pipe 22, the normally-open on-off valve 3, and the level tank 4. In this state, the pressurized fluid contains air.

Eventually, the pressurized container 21, the conduit 22, and the normally-open type on-off valve 3 are filled with the pressurized fluid, respectively, from the communication part of the on-off valve 3 with the atmosphere to the inside of the pressure container 21 and the conduit 22. When the air in the tank is released to the atmosphere side, the shield plate is also set in the level tank 4.
The pressurized fluid comes into contact with the level sensor 12 located next to the level sensor 10, whereby the level sensor 11 detects the presence of the pressurized fluid and sends a detection signal to the on-off valve 3 and the drain solenoid valve 6.

As a result, the on-off valve 3 is automatically closed, and the on-off valve 3
The pipeline 22 on the side of the pressure container 21 is cut off from the atmosphere, and the inside of the pressure container 21 is pressurized.

Further, the drain solenoid valve 6 is opened, and the pressurized fluid in the level tank 4 is discharged to the fluid tank 5 side.

The present invention is not limited to the above embodiment,
Various modifications are possible within the scope of the gist.

[Advantages of the Invention] According to the present invention described in detail above, with the above configuration, air in the range from the pressure vessel to the on-off valve via the pipe line is automatically evacuated by the action of the control means and the on-off valve. In other words, it is possible to provide a pressure treatment device capable of automatically and reliably filling the pressure vessel with a pressurized fluid and constantly performing a pressure treatment in such a state.

[Brief description of drawings]

FIG. 1 is a piping configuration diagram of an apparatus of an embodiment of the present invention, FIG. 2 is an enlarged sectional view of a level tank in the apparatus, and FIG. 3 is a piping configuration diagram of a conventional apparatus. 1 ... Pressure processing device, 4 ... Level tank, 5 ... Fluid tank, 12 ... Level sensor, 21 ... Pressure vessel, 22 ...
Pipeline.

Claims (1)

[Scope of utility model registration request] 1. A pressure vessel in which pressure treatment is performed in a pressure vessel by pressurizing a pressurized fluid from a pressurized fluid supply source, a pipeline connected to the pressure vessel, and a pipeline connected to the pipeline. A normally-open type on-off valve, and that the pressurized fluid supplied from the pressure vessel via the on-off valve detects that the inside of the pipeline and the on-off valve are filled, and drives the on-off valve to close; A pressure treatment apparatus comprising: a control unit connected to the pipeline.