JPS6333831Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a bag-shaped pressure vessel bladder that is made of a flexible and elastic material and is deformable and is placed inside the main body of a pressure vessel that is rigid and gas-tight, and that allows liquid to enter and exit from the lower end. It is.

Conventionally, when liquid enters and exits the bladder of this type of pressure vessel, the larger the size, the more irregular the bladder expands and contracts due to the weight of the liquid and the inertia of the flow, causing twisting, local constriction of the middle part, etc. Fatigue failure of the bladder is likely to occur due to localized wear, and the amount of outflow may also be uneven and may not fulfill its intended function.Furthermore, when used for drinking water, dead water remains and is unsanitary. Sometimes it becomes.

In addition, some conventional pressure vessel bladders use a partition wall-shaped bladder whose peripheral edge is fixed to the center of the vessel body. Although such a bladder does not have the above-mentioned disadvantages, it is difficult to maintain airtightness around the bladder within the container body.

This design solves these problems by making the completely bag-shaped bladder, which is easy to maintain airtight, move regularly when liquid is taken in and out, preventing fatigue damage, and also ensuring that liquid goes in and out smoothly and evenly. The present invention provides a bladder for a pressure vessel.

An embodiment of this invention will be described below with reference to the drawings.

In one embodiment of the invention shown in the figure, reference numeral 10 denotes a hollow container body with a rigid and airtight structure, and both ends of a horizontally extending cylindrical portion 10a are connected to mirror plates 10.
b, 10c are integrally closed, and are usually made of steel plate. Reference numeral 11 denotes a supporting member integrally connected to the lower part of the container body, 12 a connecting pipe connected to the lower part of the container main body 10, and 13 a reversed top-shaped cylindrical body made of a porous metal plate fixed to the end of the connecting pipe. This is a liquid inlet/outlet surrounded by 23.

Reference numeral 15 denotes a holder that is arranged inside the container body 10 and constitutes a rigid member, and is made of a rigid steel plate or the like, which is a cylindrical body divided in half in the axial direction, with one both ends closed and the upper surface left open. It is made of materials.
Reference numeral 16 denotes a fixing member that fixes this retainer within the main body 10. Reference numeral 17 denotes a deformable bag-shaped bladder made of a flexible elastic material such as rubber or soft synthetic resin, the lower half of which is arranged along the inner surface of the retainer 15, and the lower opening 18 is a cylinder. The body 23 is surrounded and fixed to the body 23 so that liquid can enter and exit, and a liquid chamber L is formed inside. 20
is a reinforcing band made of a flexible elastic material bonded to surround the circumferential surface of the central portion of the bladder. Reference numeral 21 denotes an annular frame adhered to the outside of this reinforcing band, and is fixed to the peripheral edge of the retainer 15 with bolts 22. Therefore, the bladder 17 is fixed to the periphery of the retainer 15. The cylindrical body 23 is designed to prevent the bladder 17 from being pushed out from the inlet/outlet 13.

Reference numeral 25 denotes an air supply port which is sealed after first introducing a gas such as air into the air chamber G between the container body 10 and the bladder 17. Reference numeral 26 is a manhole through which people can enter and exit, but it is closed, and in some cases, a handhole may be provided in place of this manhole.

Before normal operation, gas is filled into the air chamber G so that the operating pressure is at the lower limit. In this case bladder 17
The upper half of the cylindrical body 23 is pushed in the direction shown by the arrow a in FIG. Next, when the liquid flows into the bladder 17 from the inlet/outlet 13, it expands in the direction shown by the arrow b, and the air chamber G is compressed. During operation, the bladder 17 is recessed in the direction shown by arrow a when liquid flows out, and recessed in the direction shown by arrow b when liquid flows in.
It is designed to repeatedly expand in the direction shown by .

In addition, in this invention, the middle part of the bladder 17 is formed thick without providing the reinforcing band 20 and fixed to the peripheral edge of the holder 15, or the same holder 15 and bladder 17 are installed inside the container body 10. It may be configured to provide a plurality of them.

The bladder 17 of the pressure vessel constructed as described above is completely bag-shaped and can be easily kept airtight, and only the upper half is deformable, so it moves regularly when liquid enters and exits. This has the effect of preventing fatigue failure and allowing fluid to flow in and out smoothly and evenly.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing a pressure vessel implementing this invention, and FIG. 2 is a partially cutaway side view. 10 is a container body, 15 is a retainer, 17 is a bladder, and 20 is a reinforcing band.

Claims (1)

[Scope of utility model registration request] A bag-shaped pressure vessel bladder that is made of a flexible and elastic material and is placed inside the main body of a rigid, gas-tight pressure vessel, and is deformable and allows liquid to enter and exit from the lower end.This bladder has an opening at the lower end. The part and the periphery of the approximately central part in the vertical direction are fixed to the container body, the circumferential surface of the lower half is surrounded by a rigid member, and only the upper half is deformable. A pressure vessel bladder characterized by: