JPH028594A - Accumulator - Google Patents

Abstract

PURPOSE:To enable stable exhaust by connecting the upper ends of rising and downward pipes to each other with a horizontal pipe having an exhaust valve, and connecting the lower ends of the aforesaid pipes to each other via a bypass pipe. CONSTITUTION:The upper ends of a rising pipe 1 and a downward pipe 3 are connected to each other via a horizontal pipe 2 having an exhaust valve 4 on top thereof, while the lower ends of the aforesaid pipes 1 and 3 connected to each other via a bypass pipe 5 of small diameter sloping aslant down. According to the aforesaid construction, air-liquid separation can be smoothly made and air-liquid separation performance is improved, thereby enabling stable exhaust. Also, the internal air and liquid are completely separated from each other via the bypass pipe and, therefore, there appears no stagnating water.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides an accumulator that can efficiently separate the undissolved gas from the liquid even if an excessive amount of gas is mixed into the liquid for the purpose of dissolving a large amount of gas. Regarding.

[Prior art]

Conventionally, many accumulators have been cylinder-shaped, but the solubility of gas in liquid was originally not that high. Therefore, by installing a partition plate inside the accumulator, we can increase the solubility by increasing the pressure path between the suction port and the discharge port.
Various methods have been used to improve the separation of excess gas by separating the interior with a wire mesh or the like, thereby reducing the amount of water that comes out together with the gas when the excess gas is discharged, and suppressing pressure fluctuations. However, to date, the dissolution performance and the ability to separate surplus gas and water and discharge only the surplus gas have not been dramatically improved. Furthermore, various improvements and ideas for improving efficiency and performance,
Many of these make conventional accumulators more complex and difficult to manufacture, and are also costly. Moreover, due to the complexity, it was difficult to adjust the exhaust valve to bring out the best performance, and maintenance was also difficult. Therefore, the inventors developed an accumulator as shown in FIG. 2, but there was still a problem that the gas accumulated in the accumulator could not be drained after operation.

Originally, an accumulator is connected between a pump and a discharge nozzle with piping to exhaust excess gas, but the
The accumulator as shown in the figure is composed of a rising pipe 1, a horizontal pipe 2, and a falling pipe 3, and while the flow is flowing between these pipes, the air is exhausted from the exhaust valve 4 above the horizontal pipe 2, so the accumulator part is the neck. The problem is that liquid accumulates in the piping and cannot be drained.When the accumulated water accumulates, the liquid rots and the contaminated liquid is discharged the next time it is used, or the rotten contaminants are discharged. There were problems such as the nozzle becoming clogged and the accumulated water freezing and damaging the pipes.

[Problem to be solved by the invention]

The present invention was made in view of the above-mentioned problems, and its purpose is to provide a maintenance-free accumulator that is inexpensive, has good dissolution performance and gas-liquid separation performance, does not leave stagnant water. There is a particular thing.

[Means to solve the problem]

The gist of the present invention is to connect the upper ends of a riser pipe 1 and a fall pipe 3 with a horizontal pipe 2, provide an exhaust valve 4 at the upper part of the horizontal pipe 2, and then make the fall pipe 3 longer than the riser pipe 1. Then, from the bottom of the rising pipe 1 to the falling pipe 3
This accumulator is characterized by having a thin bypass pipe 5 with a downward slope provided at the lower part of the accumulator.

Hereinafter, a description will be given based on FIG. 1 showing one embodiment. 1st
The figure shows one embodiment of the invention. In this embodiment, the accumulator is formed by a rising pipe (1) made of a circular pipe, a falling pipe (3) made of a circular pipe, and a horizontal pipe (2) made of a square pipe.

First, let's talk about the structure. The gas-liquid mixed water reaches the down pipe (3) from the suction port (6) connected to the lower part of the riser pipe 1 via the horizontal pipe (2), and reaches the discharge port (3) connected to the lower part of the down pipe 3. 7). In this embodiment, it is assumed that the accumulated water flows into the drainage channel in this manner. The rising pipe (1) is shorter than the falling pipe (3), and its upper ends are connected by a horizontal pipe (2). Horizontal pipe (2)
A discharge valve (4) is provided near the downpipe (3) at the top of the pipe.

Furthermore, a bypass pipe (5) with a slope diagonally downward extends from the lower part of the rising pipe (1) and is connected to the side surface of the lower part of the falling pipe (3). In this way, the gas-liquid mixed water normally flows in from the suction port (6) and rises from the riser pipe (1).
) The thick riser pipe (1
) rises due to the buoyancy of the gas. After that, the gas-liquid mixed water reaches the down pipe (3) via the horizontal pipe (2),
It flows towards the outlet (7) connected to the lower part of the downcomer (3). The gas trapped in the upper part of the horizontal pipe (2) while flowing through it is discharged from the exhaust valve (4). Therefore, almost no gas or liquid flows into the thin bypass pipe (5) provided at the bottom, and there is no particular gas mixture. In this manner, the bypass pipe (5) is hardly involved during normal use.

On the other hand, when the flow of gas-liquid mixed water is stopped, the water in the downpipe (3) and horizontal pipe (2) drains downward due to gravity;
Until now, the water before the riser pipe (1) could not drain out. However, in the present invention, due to the function of the bypass pipe (5),
It is now possible to drain the water in the riser pipe (1) and the water before it.

〔Effect of the invention〕

As mentioned above, the accumulator of the present invention utilizes the fact that gas floats to the top in the riser pipe (1) and is captured so that the floated gas collects at the top as it flows through the horizontal pipe (2). (Gas is a down pipe (3)
), the gas and liquid can be separated smoothly, improving the gas-liquid separation performance, which not only makes stable exhaust possible, but also allows the internal gas and liquid to be completely exhausted through the bypass pipe (5). As a result, there is no stagnant water, and there is no need to worry about internal water rotting, contaminants clogging the exhaust valve or nozzle, or freezing damage.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a perspective view showing a conventional example. (1) riser pipe, (2) horizontal pipe, (3) fall pipe, (4) exhaust valve, (5) bypass pipe, (6) suction port, (7) discharge port.

Claims (1)

[Claims] (1) Connect the upper ends of the rising pipe and falling pipe with a horizontal pipe, provide an exhaust valve at the top of the horizontal pipe, form the rising pipe shorter than the falling pipe, and connect the lower part of the rising pipe to the lower part of the falling pipe. This accumulator is characterized by being connected to the downpipe by a thin bypass pipe with a downward slope.