JPS6118042B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention can be used by simply fitting it into the vertical pipe and stopping it at a position where the liquid chamber communicates with the liquid passage port via the port, and the bladder is not affected by buoyancy. This article relates to a vertical piping exterior type accumulator.

Conventionally, as an accumulator installed in piping, the one described in Japanese Patent Publication No. 46-33273 has been known. An elastic tube that is pressurized by the gas is inserted, and a cylindrical guide member is placed inside the tube.In order to install this into the piping, a part of the piping must be cut off and the end of the tube must be removed. Since a male thread was formed in each of the cylindrical main bodies, and these male threads were screwed into screws provided at both ends of the cylindrical main body, installation was troublesome and time consuming. is divided into an outer gas chamber and an inner liquid chamber by an elastic tube, so when installed in a vertical pipe, the gas in the gas chamber is unevenly distributed upwards due to the effect of buoyancy, and the elastic tube Since the lower half of the tube is brought into close contact with the cylindrical main body by liquid pressure, and the only deformable part of the tube is the upper half, not only the buffering function of the accumulator is significantly reduced, but also the volumetric efficiency is reduced. However, since only the upper half of the tube is forced to deform, the tube is easily damaged.

The present invention can be easily installed without cutting into the piping by simply inserting the inner cylinder provided in the center of the pressure vessel into the piping and stopping it with a stopper. The object of the present invention is to obtain a vertical piping exterior type accumulator in which the diaphragm is not affected by buoyancy by dividing it into an upper gas chamber and a lower liquid chamber.

Next, the vertical piping exterior type accumulator of the present invention will be explained based on the drawings. In the diagram, 1 is the vertical piping for feeding liquid, the part into which the pressure vessel (to be described later) is fitted is finished in a perfect circle, and the pressure vessel is attached to the lower end of the vertical piping. A step 2 is provided for positioning, and a screw 3 is formed at the top. A is an annular pressure vessel consisting of a lid 6 formed in the shape of a bowl with an inner cylinder 4 in the center, and a main body 9 also formed in the shape of a bowl with an inner cylinder 8 in the center. The female thread 13 of the joint ring 12 is butted and fitted into the main body 9 from below, and its restraining edge 10 is engaged with the shoulder 11 of the main body 9. 9 are integrally connected, and the vertical pipe 1 is connected to the inner cylinder 5 of the lid body 6 and the inner cylinder 8 of the main body 9.
A hole 4 and a hole 7 are provided to fit into the perfectly circular portion of the hole. Reference numerals 14 and 15 denote annular grooves provided on the outer periphery of the holes 4 and 7, respectively, and the sealing member 1
6 and 17 separately, and connect the holes 4 and 7 to the pipe 1.
It is designed to seal the gap between the Reference numeral 18 denotes an annular diaphragm made of a flexible elastic material such as rubber to have a similar shape to the annular chamber formed within the main body 9, and mounting flanges 19 and 20 are formed on the inside and outside of the opening, respectively. Mounting flange 19
Inside the mounting flange 20, a ring 21 with a cross-section of ``A'' is fitted, consisting of a horizontal piece ``A'' and a vertical piece ``R'' with a rounded lower end. Ring 22 with a cross-sectional shape
When the lid body 6 and the main body 9 are connected as described above, the annular diaphragm 18 is housed in the annular chamber of the main body 9, and the mounting flanges 19 and 20 are fitted between the inner cylinder 8 and the main body. 9, and place the lid 6 on the flanges 19 and 20 so that the outer periphery touches the mounting flange 20 and the inner cylinder 5 touches the mounting flange 20,
When the main body 9 and the lid body 6 are connected by the joining ring 12, the mounting flanges 19 and 20 are compressed by the outer peripheries of the main body 9 and the lid body 6 and the inner cylinders 5 and 8, and the diaphragm 18 is airtight. It is designed to ensure a strong installation. Reference numeral 24 denotes an annular groove provided in the inner cylinder 8 on the side of the main body 9, which communicates with the liquid chamber a in the pressure vessel A through a through hole 25 provided at the bottom of the main body 9. Reference numeral 23 denotes a liquid passage hole provided in the vertical pipe 1, and when the inner cylinders 5 and 8 of the pressure vessel A are fitted into the pipe 1 until the lower end of the inner cylinder 8 touches the step part 2, the annular groove 24 and placed in a communicating position. Reference numeral 26 denotes an annular valve seat formed in a portion where the through hole 23 opens to the liquid chamber a, and is formed in a tapered shape. 27 is the valve seat 26
This is an annular valve attached to the diaphragm 18 in correspondence with the valve seat 26, and is formed in a tapered shape to match the valve seat 26. 28 is an air supply means attached to the bowl-shaped lid body 6;
Gas is sealed into a gas chamber b formed at the top of an annular pressure vessel A. A nut 29 is screwed onto the male thread 3 of the vertical pipe 1, and the annular pressure vessel A is fixed to the vertical pipe 1 by the nut 29 and the stepped portion 2.

When the annular diaphragm 18 is accommodated in the annular chamber of the bowl-shaped main body 9 of the vertical piping exterior type acumulator configured as described above, the upper edge of the outer periphery of the bowl-shaped main body 9 is connected to the outer mounting flange 2 of the diaphragm 18.
0, and the upper edge of the inner cylinder 8 supports an inner mounting flange 19. Therefore, if the bowl-shaped lid 6 is placed on the inner and outer mounting flanges 19 and 20, the lower edge of its outer circumference is placed on the mounting flange 20, and the lower edge of the inner cylinder 5 is placed on the mounting flange 19. Since the diaphragm 18 is sandwiched between the inner and outer flanges 19 and 20 by the outer periphery of the bowl-shaped lid 6 and the main body 9 and the inner cylinders 5 and 8, in this state, it is joined to the bowl-shaped main body 9 from below. When the ring 12 is fitted and the female thread 13 of this joining ring 12 is screwed to the male thread of the bowl-shaped lid 6 and tightened, the outer periphery of the lid 6 and the main body 9 is connected to the outer mounting flange of the diaphragm 18. 20, and the inner cylinder 5 and the inner cylinder 8 are attached to the inner mounting flange 1.
9, the annular pressure vessel A is completed with a diaphragm 18 installed with sufficient airtightness and strength, and the inner cylinders 5 and 8 of this annular pressure vessel A are connected to the vertical pipe 1. If the inner cylinder 8 is fitted until the lower end engages with the stepped part 2, the annular pressure vessel A will have the annular groove 24 of the inner cylinder 8 in the main body 9 aligned with the liquid passage hole 2.
It stops in a state that matches 3. Therefore, by screwing the nut 29 onto the male thread 3 of the vertical pipe 1 and inserting the annular pressure vessel A between the nut 29 and the stepped portion 2, the vertical pipe 1 is cut and the screw connection is completed. The accumulator surrounding the vertical piping 1 can be installed in a short time without any trouble. When the installation is completed in this way, gas is sealed in the gas chamber b by the sealing means 28, the annular diaphragm 18 is pressurized, and the liquid to be fed to the vertical pipe 1 to the liquid chamber a is connected to the liquid passage hole 23 and the annular groove. 24, when introduced through the through hole 25, the annular diaphragm 18 accordingly reduces the volume of the gas chamber b and expands the liquid chamber a, receives the pressurized liquid into this chamber a, and performs pressure accumulation, buffering, etc. In this case, in this accumulator,
Since the gas chamber b is located above the annular diaphragm 18 and no buoyant force is applied to the diaphragm 18, the annular diaphragm 18 can deform as planned.

As mentioned above, the vertical piping exterior type accumulator according to the present invention has an annular diaphragm mounting flange interposed between the bowl-shaped lid body having an inner cylinder and the main body, so that the bowl-shaped lid body and the main body can be connected to each other. are connected by a joint ring to form an annular pressure vessel in which an annular diaphragm is airtightly attached, and the inner cylinder of this pressure vessel is fitted into a vertical pipe and stopped by a stop means, thereby interrupting the vertical pipe. The accumulator can be installed easily and quickly in the desired position of the vertical piping without the hassle of making screw joints.In addition, this accumulator has a through hole on the liquid chamber side and a liquid passage hole in the vertical piping. By positioning the pressure vessel with a stopper so that the passage hole and the liquid passage hole coincide with each other, the vertical pipe and the liquid chamber can be directly connected to each other, allowing convenient flow of liquid into and out of the liquid chamber. The upper side is used as a gas chamber, and this part is filled with pressurized gas so that the buoyancy of the gas does not act on the diaphragm.
The annular diaphragm not only smoothly deforms as planned, efficiently accumulates pressure and absorbs shock, but also prevents damage to the diaphragm.

In particular, this accumulator has a pressure vessel formed by a main body and a bowl-shaped lid having an inner cylinder in the center, and a mounting flange provided on the inside and outside of an annular diaphragm is connected to the outer periphery of the lid and the main body and the inner cylinder. Since the diaphragm is clamped by the diaphragm, it is easy to attach the diaphragm to the pressure vessel so as to obtain sufficient airtightness and strength.

Furthermore, with this accumulator, if the stop means is removed, the annular pressure vessel can be removed from the vertical piping, and the connecting ring can be removed to separate the bowl-shaped lid from the main body, so it is easy to inspect the accumulator. This has the unique effect of making adjustments and repairs easy and quick.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view showing a vertical piping exterior type accumulator according to the present invention. FIG. 2 is a longitudinal sectional front view of a conventional acumulator in which the bladder is affected by buoyancy. In the figure, 5 is an inner cylinder, 6 is a bowl-shaped lid, 8 is an inner cylinder, 9
is a bowl-shaped main body, 18 is an annular diaphragm, 1
9 and 20 are mounting flanges, 28 is a gas sealing means,
25 is a through hole, 23 is a liquid through hole, 1 is a vertical pipe, 2, 3
is a means of stopping.

Claims (1)

[Claims] 1. An annular diaphragm is placed inside a pressure vessel consisting of a bowl-shaped main body with an inner cylinder in the center and a lid body, and its outer mounting flange is sandwiched between the outer peripheries of the main body and the lid body, and the inside The mounting flange is mounted so as to be sandwiched between the inner cylinder of the main body and the lid, and the diaphragm connects the inside of the pressure vessel to an upper gas chamber filled with gas by a sealing means, and a passage to be described later. The inner cylinder of the pressure vessel is fitted into a vertical pipe having a liquid passage hole, and the liquid chamber is divided into a lower liquid chamber through which liquid enters and exits through the liquid hole. A vertical piping exterior type accumulator, characterized in that it is fixed by a stopper at a position communicating with a liquid passage hole of the vertical piping.