JPH0414713Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dry gas holder in which a piston is provided in the gas holder body so as to be able to move up and down. This invention relates to a dry gas holder that can be easily adjusted.

[Prior Art] A conventional dry gas holder has a dome-shaped piston that is movable up and down in a vertical cylindrical or vertical polygonal gas holder main body, and the content gas is stored in the gas holder main body below the piston. The weight of the piston is balanced against the pressure of the gas content, the piston is suspended within the gas holder body, and the piston is moved up and down as the gas content moves in and out.

A feature of this dry gas holder is that it can always supply gas at a constant pressure to meet the required pressure on the demand side. Therefore, adjusting the weight of the piston is very important, but conventionally, the weight of the material that makes up the piston and the concrete block (approximately one piece) used to adjust the gas pressure have been adjusted.
Several thousand sheets (approximately 50 kg) were placed on the girder that supported the piston to balance the gas pressure.

[Problems to be solved by the invention] However, when concrete blocks are laid in this way, a lot of labor is required to manufacture, transport, and lay the concrete blocks, and it is also difficult from a safety standpoint.

Especially recently, the content gas pressure has been changed from about 500 mmAq to about
It is being used instead of 1000mmAq,
There is a problem in that adjusting the pressure requires a lot of time and cost.

[Purpose of the invention] The invention was made in consideration of the above circumstances.
It is an object of the present invention to provide a dry type gas holder in which the pressure of the gas contained therein can be easily adjusted.

[Summary of the invention] In order to achieve the above object, the present invention provides a dome-shaped piston in a vertical cylindrical gas holder body that can be moved up and down, and stores the gas content in the gas holder body below the piston. A dry gas holder, characterized in that the piston is provided with a balance weight made of liquid and powder,
By making the balance weight a liquid or powder, its weight can be easily adjusted, and the pressure of the gas content can be easily adjusted.

[Embodiment] Hereinafter, a preferred embodiment of the dry gas holder according to the present invention will be described based on the accompanying drawings.

In the figure, 1 is a vertical cylindrical gas holder main body, and its bottom plate 3 is installed on a foundation concrete 2.

A dome-shaped piston 5 is provided inside the gas holder body 1 and is movable up and down along the holder side plate 4 of the gas holder body 1. The piston 5 has a lower girder 6 in its circumferential direction, and on the lower girder 6 an upper guide frame 8 that supports a roller 7 sliding along the holder side plate 4 .

The lower girder 6 is provided with a sealing device 11 for sealing the content gas chamber 9 below the piston 5 from the upper chamber 10 .

A gas inlet/outlet pipe 12 is connected to the bottom plate 3 of the gas holder main body 1 for supplying and taking out the content gas to the lower content gas chamber 9 partitioned by the piston 5.

A roof vent 13 is provided at the top of the gas holder main body 1 for letting air in and out of the upper chamber 10 as the piston 5 moves up and down.

The piston 5 is provided with a balance weight 14 for adjusting the content gas pressure in the content gas chamber 9. This balance weight 14 consists of a liquid-sealed balance weight 14a provided below the lower girder 6 and filled with liquid, and a powder balance weight 14b provided above the piston 5 filled with powder. A conventional concrete block 15 may be placed on the lower girder 6 depending on the requirements. The liquid-seal balance weight 14a is a bag-shaped liquid-seal bag 16 in which liquid is sealed by a supply device (not shown), and its weight can be freely adjusted depending on the amount of liquid supplied. In this case, for example, when the piston 5 is at the lowest position as shown in the figure, the liquid supply/drainage nozzle 19 provided at the lower part of the holder side plate 4 and the supply/discharge port 20 provided in the liquid seal balance weight 14a are temporarily installed. After connecting with a hose or the like and supplying liquid from the liquid supply/drainage nozzle 19 to fill the liquid seal bag 16 with a predetermined amount, the supply/discharge port 20 is closed to adjust the weight. Moreover, the required liquid level is marked in the chamber of the liquid-sealed balance weight 14a to manage the weight.

Further, the powder balance weight 14b is
7 is filled with powder 18, and the powder is supplied to the container 17 from the upper chamber 10 side by an appropriate supply means (not shown). That is, the manhole 21 of the holder side plate 4 is opened, the duct 22 is inserted through the manhole 21, the tip of the duct 22 is positioned in the container 17, and the powder is supplied into the container 17 through the duct 2 or is sucked into the container 17. Take out the powder from.

Next, the operation of the present invention will be explained.

When the content gas is supplied into the gas chamber 9 from the gas inlet/outlet pipe 12, the gas pressure is lower than the piston 5.
or balance weight 14, etc., if it is higher than its own weight,
As shown by the two-dot chain line in the figure, the piston 5 is raised along the holder side plate 4 of the gas holder main body 1 by the roller 7 provided on the upper guide frame 8. Further, when supplying the content gas to various devices from the inlet/outlet pipe 12, it is supplied at a gas pressure commensurate with the weight of the piston 5, etc.

When adjusting this gas pressure, before filling the content gas, when the piston 5 is at the lowest position, liquid is supplied from the liquid supply/drainage nozzle 19 to the liquid seal balance weight 14a as described above. The powder is also supplied from the manhole 21 to the powder balance weight 14b, and the weight of the piston 5 is adjusted to match the gas pressure used. In this case, since the liquid seal balance weight 14a has fluidity, it flows approximately uniformly in the circumferential direction of the piston 5, and can apply an equal load to the entire piston 5 and can be easily extracted. You can finely adjust the weight. Further, the powder can appropriately change the load in the circumferential direction of the piston 5, and the balance of the piston 5 can be adjusted.

Next, increase the gas pressure inside the holder from 500mmAg to 1000mm.
When raising the temperature to Ag, move the piston 5 to the lowest position as described above and supply liquid and powder to 1000mmAg.
The weight shall be commensurate with that. In this case, for example, the powder balance weight 14b is set to a weight corresponding to the pressure of 500 mmAg, and the remaining weight is set to the liquid seal balance weight 14a.
It can also have a weight commensurate with 1000mmAg.

In addition, when adjusting the pressure during operation, leave the liquid seal bag 16 of the liquid seal balance weight 14a connected to the liquid supply device (not shown) with a flexible pipe, etc. The gas pressure can be changed by supplying liquid from a liquid supply device or by supplying powder into the container 17 from the upper chamber 10 side and adjusting the weight of the powder balance weight 14b. Since liquid and powder can be continuously supplied, the weight can be finely adjusted unlike conventional concrete blocks, and the fluidity allows the piston 5 to be easily balanced.

[Effects of the Invention] As is clear from what has been described in detail above, the present invention provides the following excellent effects.

(1) Since a piston is provided inside the gas holder main body so as to be able to move up and down, and a balance weight made of liquid and powder is provided on the piston, the pressure of the gas contained within the holder can be easily adjusted.

(2) Since liquids and powders can be freely supplied using the supply device, great effects can be expected in terms of work safety, construction time, and cost.

(3) It is possible to adjust the weight of the balance weight even during operation.

[Brief explanation of the drawing]

The accompanying drawing is a longitudinal sectional view showing an embodiment of the dry gas holder according to the present invention. In the figure, 1 is the gas holder body, 5 is the piston, and 9
14a is a liquid seal balance weight, and 14b is a powder balance weight.

Claims (1)

[Scope of utility model registration request] A dry gas holder in which a dome-shaped piston is provided in a vertical cylindrical gas holder main body so as to be movable up and down, and a content gas is stored in the gas holder main body below the piston, and a balance weight made of liquid and powder is provided on the piston. A dry gas holder.