JPH04266601A - Accumulator - Google Patents

Abstract

PURPOSE:To increase the capacity and contract the space for installation by providing a gas bag expanded and contracted by a pressure medium going in and out a vessel in the vessel, and providing a nozzle having an adaptor having a gas entrance nozzle for the gas bag on the upper part of the vessel. CONSTITUTION:An accumulator body 1 is divided into two upper and lower parts by providing a shell flange 2 in the center part thereof, and an intermediate end plate 3 having an operation medium liquid passing hole is provided on the lower part of the shell flange 2. A bladder 4 is displaced in the body, so that the condition of the fluid in a feed water pipe is transmitted to the bladder 4 through the hole of the end plate 3, and the bladder 4 is expanded and contracted by a pressure fluctuation in the vessel body 1. An excessive expansion is regulated by the end plate 3. A nozzle 6 is provided on the upper part of the body 1, an entrance nozzle 8 for the gas in the bladder 4 is provided in the nozzle 6, and a valve 9 is provided on its terminal. A nozzle 11 and a vent valve 12 are provided on the upper part of the nozzle 6 through a blind flange 10 so as to pull out the gas in the body 1 through the vent valve 12.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] This invention accumulates excess pressure energy within the container and releases it outside the container, thereby converting the flow in the water pipe from a pulsating flow to a smooth flow, thereby reducing water supply energy. This is expected to result in energy-saving effects.

0002

[Prior Art] In the currently used accumulators, in those in which a boundary wall, that is, a bladder is provided between the pressure working medium and the gas expanding and contracting in the container, the strength of the bladder, in other words, From a production and operational standpoint, the bladder is in close contact with the inner surface of the container body, making it impossible to operate sufficiently within the container, making it impossible to increase the size of the accumulator. Therefore, if a large capacity accumulator is required, the quantity is simply increased.

0003

[Problems to be Solved by the Invention] In the current situation described above, there are problems with increasing the capacity of the accumulator, reducing manufacturing costs, reducing installation space, etc.

0004

[Means for Solving the Problems] The present invention relates to the above-mentioned problems, and in order to increase the capacity of the accumulator, it is first necessary to increase the size of the gas bag, that is, the bladder. When the bladder is enlarged, it is necessary to adjust the amount of gas inside the bladder during operation or after installation and assembly of the device. At the same time, if the transport fluid in the water pipe is liquid,
There may be cases where water delivery efficiency is better if gas or air is removed from the water pipes and the accumulator other than the bladder.

Therefore, in this case, a bend valve is attached to the nozzle 6 at the top of the accumulator, and an adapter 7 is provided inside this nozzle, and a nozzle 8 is also provided inside the nozzle, and this nozzle allows gas to enter and exit the bladder 4. If valve 9 is attached to this nozzle, both valves will be located in the same nozzle at the top of the container, so that the valves will be relatively close to each other in terms of arrangement. In other words, the valves can be operated almost simultaneously by a single person.

[0006] Furthermore, in order to almost completely remove the gas in the container, it is impossible to completely remove the gas if the outer wall of the bladder is in close contact with the inner surface of the accumulator body. . Therefore, for this purpose, a flow passage connecting the upper and lower parts of the bladder is required on the inner surface of the accumulator main body. Through this flow path, the gas and pressure equalizing liquid in the container body rise to the top of the bladder, and at the same time,
This has the effect of almost equalizing the pressure inside the container.

[0007]

[Function] In this accumulator configured as described above, when pressure medium enters the lower part of the container from the water pipe etc. and pressurizes the lower part of the container, the bladder is pushed up to the upper part of the container and the inner surface of the container is It will be in a state where it is crimped. However, since the inner surface of the container body is provided with a flow passage, the gas in the lower part of the bladder rises through this flow passage and can be extracted through a nozzle provided at the upper part of the container body.

[0008] Furthermore, even if the lower part of the bladder in the container is pressurized due to the action of pulsating flow in the water pipe, pressure fluctuations are also transmitted to the upper part of the bladder through this flow path, although there is a head difference in the working medium liquid. I can do it. As a result, the adhesion between the inner surface of the accumulator container and the outer wall of the bladder is loosened, and a peeling effect is obtained, so that the expansion and contraction action of the bladder can be activated sensitively.

[0009]

[Example] Hereinafter, an example will be explained based on the drawings. FIG. 1 is a longitudinal sectional view of the accumulator of the present invention. The configuration and operation of this diagram will be explained below. First, a body flange 2 is provided at the center of the main body 1 of the accumulator, and the main body 1 is divided into two parts by this flange. Also, there is an intermediate head plate 3 at the bottom of this body flange.
will be established. A hole through which the working medium passes is provided near the center of the end plate. Therefore, it is assumed that the conditions of the fluid in the water pipe are transmitted to the bladder 4 through this hole. Further, although the bladder 4 expands and contracts due to pressure fluctuations within the container body, it is assumed that the bladder cannot expand more than this end plate.

At the bottom of the container body, there are provided a nozzle communicating with a water pipe, a flange, and a partition plate 5, etc., as shown in the figure. That is, by the action of this partition plate, the fluid in the water pipe is forcibly pushed once into the accumulator and then forced out of the accumulator.

Next, a nozzle 6 is provided in the upper part of the accumulator body, and an adapter 7 is installed in this nozzle 6.
Further, a nozzle 8 is attached therein as shown in the figure. This nozzle 8 is a gas inlet/outlet nozzle of the bladder 4,
A valve 9 is provided at the end of this nozzle. Further, a blind flange 10 is provided above the nozzle 6, and a nozzle 11 and a vent valve 12 are also provided on this blind flange. That is, the gas inside the accumulator body,
In other words, air can be extracted from this vent valve.

FIG. 2 is a view along the arrow "A-A" in FIG. This figure is an example of a case where flow passages are arranged at about four positions on the circumference. All of these flow paths are shown in Figure 1.
, the nozzle 6 provided at the top of the container is connected from the vicinity of the body flange of the container body.

FIG. 3 is a detailed view of the "Z" section in FIG. 2. This figure shows an example of a case where a flow path 14 is formed on the inner surface of the accumulator main body 1 using a partition plate 13 or the like. In this case, if the joint between the main body 1 and the partition plate 13 is a welded structure, it can be manufactured relatively inexpensively.

FIG. 4 shows the "Z" section in FIG.
This is a detailed diagram of another model. This figure shows an example of a case where a flow path 16 is formed on the inner surface of the accumulator main body 1 using a pipe 15 or the like. In this figure tube 15
It is necessary to pay sufficient attention to the design of the internal flow passage 16 to prevent accidents such as clogging.

FIG. 5 is a view taken along the line "B--B" in FIG. 1. This figure is an example of an arrangement in which an intermediate end plate 3 is provided at the lower part of a body flange provided on the accumulator body 1, and holes are provided in this end plate through which the working medium liquid passes.

FIG. 6 is a longitudinal sectional view of an accumulator of a different type from FIG. 1. The main difference between this figure and Fig. 1 is that the container body in Fig. 1 is vertical, whereas the one in Fig. 1 is vertical.
FIG. 6 shows a horizontal type.

[0017]

[Effects of the Invention] Since the present invention is configured as described above, it has the following effects. First, the present invention makes it possible to increase the capacity of an accumulator, which has been considered impossible up to now. Therefore, as a result, it is highly effective in the field of wave pumps that utilize wave energy, etc. There are various types of wave pumps, but among them, those that pump water by the reciprocating motion of a piston always require an accumulator. Depending on the scale of the device, water tank experiments show a difference of 2 to 3 times between using and not using an accumulator in a wave pump.

In general, wave pumps are used to replace water in bays, to replace water in ports, as water pumps to prevent freezing, or as water pumps for ocean purification equipment in order to protect the global environment. There are various types, but no matter which one you look at, the scale of the equipment is enormous. Therefore, the accumulator built into this device also requires a correspondingly large scale. However, the possibility of increasing the size of the accumulator according to the present invention greatly contributes to global environmental conservation, future energy development, energy conservation, ocean development industry, etc.

[Brief explanation of the drawing]

[Figure 1] Longitudinal cross-sectional view of the accumulator

[Figure 2]
"A-A" arrow view in Figure 1

[Figure 3] Detailed view of the “Z” section in Figure 2

[Figure 4] "Z" in Figure 2
Figure 3 and detailed diagram of another model

[Figure 5] "B-B" arrow view in Figure 1

[Figure 6] Longitudinal cross-sectional view of an accumulator of a different type from Figure 1

[Explanation of symbols]

Claims (4)

[Claims] Claim 1: A gas bag, i.e., a bladder (4
) as a boundary wall between the two, and an adapter (7) inside the nozzle (6) provided at the top of the container body.
), and furthermore, an inlet/outlet nozzle (8) for gas in the bladder (4) is provided inside the bladder (4),
An accumulator that can store pressure inside a container. 2. By providing a flow path (14) or (16) for gas and working medium liquid inside the container body, this flow path can remove the gas inside the container body and reduce the pressure inside the container. An accumulator that is characterized by serving as a passageway for a pressure-equalizing liquid to be pressure-equalized, and is capable of moving pressure medium liquid in and out of a container by the expansion and contraction action of gas in a bladder (4). 3. The flow path (14) provided in the accumulator container body is provided with a stop plate (13), etc., so that the flow path has a groove shape. An accumulator that can be used as a passage for liquid extraction and pressure equalization. Claim 4: By providing a pipe (15) or the like in the flow path (16) provided within the accumulator container body,
This accumulator is characterized by having a boundary wall of the flow passage, so that the flow passage can serve as a passage for extracting gas in the container body and for passage of pressure-equalizing liquid.