WO2021079814A1

WO2021079814A1 - Liquid pump system

Info

Publication number: WO2021079814A1
Application number: PCT/JP2020/038849
Authority: WO
Inventors: 啓一中島
Original assignee: ネイチャーダイン株式会社
Priority date: 2019-10-21
Filing date: 2020-10-15
Publication date: 2021-04-29
Also published as: WO2021079409A1

Abstract

The present invention realizes a liquid pump system that can obtain large potential energy with small kinetic energy. The liquid pump system (1) is provided with: a first chamber (2) that accommodates a gas in an internal space (2a), the internal space (2a) forming at least a portion of an airtight space; a first pressurizing bag (3) that is arranged in the internal space (2a) of the first chamber (2), deforms in association with a change in air pressure in the internal space (2a) of the first chamber (2), and suctions or discharges a liquid; and an air pressure changing unit (4) that changes the air pressure of the internal space (2a) of the first chamber (2). When the air pressure of the internal space (2a) of the first chamber (2) is to be changed, and the first pressurizing bag (3) is to suction a liquid or a liquid is to be discharged from the first pressurizing bag (3), a lifting force is generated on the liquid inside the first pressurizing bag (3) by deformation of the first pressurizing bag (3).

Description

Pumping pump system

This disclosure relates to a pressure-driven pump system.

In recent years, as an important application of a pump system, a large amount of water is stored in a high position, and as disclosed in Patent Document 1, it is utilized for converting kinetic energy into potential energy. ..

Japanese Patent No. 5737681

In such a pump system, it is required to improve the conversion efficiency between kinetic energy and potential energy.
Therefore, the present disclosure realizes a pump system that can obtain a large potential energy with a small kinetic energy.

The pump system according to one form of the present disclosure is
A first chamber in which the internal space forms at least a part of the airtight space and the gas is housed in the internal space.
A first pressurizing bag that is arranged in the internal space of the first chamber and deforms with a change in air pressure in the internal space of the first chamber to suck or discharge a liquid.
An atmospheric pressure changing part that changes the atmospheric pressure in the internal space of the first chamber,
With
When the pressure in the internal space of the first chamber is changed so that the first pressurizing bag sucks the liquid or discharges the liquid from the first pressurizing bag, the deformation of the first pressurizing bag causes the liquid. , A lift is generated in the liquid inside the first pressurizing bag.

In the above-mentioned lift pump system, the air pressure in the internal space of the first chamber is changed, and the side wall portion of the first pressurizing bag is horizontally deformed to deform the liquid inside the first pressurizing bag. Is preferably moved in the horizontal direction to cause a flow in the liquid inside the first pressurizing bag to generate lift in the liquid.

In the above-mentioned lift pump system, the liquid inside the first pressurizing bag is generated by further moving the liquid moved in the horizontal direction in the first pressurizing bag downward to generate a swirl flow. It is preferable to generate a flow in the liquid to generate lift in the liquid.

In the above-mentioned pumping system, it is preferable that the lower portion of the first pressurizing bag is provided with a first tapering portion that tapers downward of the first pressurizing bag.

In the above-mentioned pump system, the upper portion of the first pressurizing bag includes a second taper portion that tapers upward of the first pressurizing bag.
The first pressurizing bag has a diamond shape, and it is preferable that the liquid is sucked from the lower part of the first pressurizing bag and the liquid is discharged from the upper part of the first pressurizing bag.

In the above-mentioned pump system, the first pressurizing bag preferably includes a tension portion for applying tension in the vertical direction of the first pressurizing bag.

In the above-mentioned pump system, the atmospheric pressure change part is
An expansion bag that is placed in the internal space of the first chamber and can be deformed,
A first pump that supplies gas to the expansion bag and sucks gas from the expansion bag,
With
When the expansion bag expands, it is preferable that the expansion bag comes into contact with the side wall portion of the first pressure bag.

In the above-mentioned pump system, it is preferable that the atmospheric pressure changing unit includes a second pump that sucks gas in the internal space of the first chamber when expanding the expansion bag.

In the above-mentioned pumping system, it is preferable that the expansion bag and the side wall portion of the first pressurizing bag are adhered to each other.

The pump system described above
A plurality of the first pressurizing bags arranged in the internal space of the first chamber, and
In the internal space of the first chamber, the liquid discharged from the lower first pressurizing bag adjacent in the vertical direction can be accommodated, and the upper first pressurizing bag adjacent in the vertical direction can be accommodated. A relay unit arranged outside the first chamber so that the liquid can be discharged into the chamber,
A first check valve arranged between the lower first pressurizing bag and the relay portion,
A second check valve arranged between the upper first pressurizing bag and the relay portion,
It is preferable to provide.

In the above-mentioned pump system,
When the air pressure in the internal space of the first chamber rises, the first check valve is opened to discharge the liquid from the lower first pressurizing bag to the relay portion, and the second check valve is discharged. With the check valve closed, the liquid is discharged from the first pressurizing back on the upper side.
When the air pressure in the internal space of the first chamber drops, the lower first pressurizing bag sucks the liquid and the second check valve is closed while the first check valve is closed. It is preferable that the valve is opened and the first pressurizing back on the upper side sucks the liquid from the relay portion.

The pump system described above
A second chamber connected to the first chamber and having an internal space forming at least a part of the airtight space together with the internal space of the first chamber.
A second pressurizing bag arranged in the internal space of the second chamber, connected in series with the first pressurizing bag, and alternately arranged with the first pressurizing bag.
A check valve arranged between the first pressurizing bag and the second pressurizing bag,
With
The atmospheric pressure change part is
As the air pressure in the internal space of the second chamber is lowered, the second pressurizing bag is expanded and the air pressure in the internal space of the first chamber is increased to increase the pressure in the first chamber. Shrink the pressure chamber,
As the air pressure in the internal space of the first chamber is lowered, the first pressurizing bag is expanded and the air pressure in the internal space of the second chamber is increased to increase the pressure in the second chamber. It is preferable to shrink the compression chamber.

In the above-mentioned pumping system, it is preferable that the lower portion of the second pressurizing bag is provided with a first tapering portion that tapers downward of the second pressurizing bag.

In the above-mentioned pump system, the upper portion of the second pressurizing bag includes a second taper portion that tapers upward of the second pressurizing bag.
The second pressurizing bag has a diamond shape, and it is preferable that the liquid is sucked from the lower part of the second pressurizing bag and the liquid is discharged from the upper part of the second pressurizing bag.

In the above-mentioned pump system, the second pressurizing bag preferably includes a tension portion for applying tension in the vertical direction of the second pressurizing bag.

In the above-mentioned pump system, it is preferable that a part of the first pressurizing bag and the second pressurizing bag is arranged so as to overlap in the vertical direction.

In the above-mentioned pump system, it is preferable that the discharge port of the check valve is arranged directly below or diagonally downward.

The above-mentioned pump system includes the second chamber for each of the second pressurizing bags.
The second chamber is preferably fixed to the outer peripheral portion of the first chamber.

In the above-mentioned pump system, the atmospheric pressure change part is
A first pump that moves the gas in the internal space of the first chamber to the internal space of the second chamber, and
A second pump that moves the gas in the internal space of the second chamber to the internal space of the first chamber, and
It is preferable to provide.

In the above-mentioned pump system, the atmospheric pressure change part is
The first flow path through which the gas in the internal space of the first chamber flows toward the internal space of the second chamber, and
A second flow path through which the gas in the internal space of the second chamber flows toward the internal space of the first chamber, and
The first flow path so that the gas in the internal space of one of the first chamber or the second chamber can be sucked and discharged to the other internal space of the first chamber or the second chamber. Or with the pump connected to the second flow path,
A switching unit that switches between the connection between the first chamber and the second chamber by the first flow path and the connection between the first chamber and the second chamber by the second flow path. When,
It is preferable to provide.

In the above-mentioned pump system, when the discharge pressure of the pump becomes equal to or higher than a preset first threshold value, the switching unit is the one of the first flow path or the second flow path. When the first chamber and the second chamber are connected and the suction pressure of the pump becomes equal to or higher than a preset second threshold value, the other of the first flow path or the second flow path. It is preferable to connect the first chamber and the second chamber with.

In the above-mentioned pump system, the pump includes a third chamber connected to the switching portion, and receives sunlight to warm the gas in the internal space of the third chamber, thereby warming the internal space. It is preferable that the pressure in the internal space rises and the gas in the internal space cools due to the decrease in sunlight, so that the pressure in the internal space decreases.

In the above-mentioned pump system, the pump covers the sea surface and includes a covering portion through which seawater can enter and exit through an opening.
The covering portion is connected to the switching portion and is connected to the switching portion.
It is preferable that the air pressure in the internal space of the covering portion changes according to the change in the height of the sea surface inside the covering portion.

In the above-mentioned pump system,
The pump
A third chamber connected to the switching portion and
A volume change part that is arranged in the internal space of the third chamber and vaporizes or atomizes the liquid.
A dew condensation propulsion unit, which is arranged in the internal space of the third chamber and promotes dew condensation,
With
It is preferable to change the gas in the internal space of the third chamber by switching between the operation and the stop of the volume changing portion.

The above-mentioned pump system reduces the air pressure to at least the third threshold when the air pressure in the internal space of the first chamber becomes higher than a preset third threshold value, and the above-mentioned pump system reduces the air pressure to at least the third threshold value. When the air pressure in the internal space becomes lower than the preset fourth threshold value, it is preferable to include an air pressure adjusting unit that raises the air pressure to at least the fourth threshold value.

In the above-mentioned pump system, the air pressure adjusting unit is
A fourth chamber connected to the first chamber and containing a liquid,
A discharge path that is passed from the internal space of the fourth chamber to the outside of the fourth chamber and provided with a third check valve, and
A liquid tank arranged outside the fourth chamber and containing a liquid, and a liquid tank.
A supply path that is passed from the liquid tank to the internal space of the fourth chamber and provided with a fourth check valve, and
With
When the pressure in the internal space of the first chamber becomes higher than the third threshold value, the liquid contained in the fourth chamber is discharged up the discharge path to the liquid tank, and the liquid contained in the fourth chamber is discharged to the liquid tank. When the liquid contained in the chamber is discharged, the gas in the internal space of the first chamber is discharged through the discharge path, and the pressure in the internal space of the first chamber reaches at least the third threshold value. When lowered, the third check valve is closed and the third check valve is blocked.
When the pressure in the internal space of the first chamber becomes lower than the fourth threshold value, the liquid contained in the liquid tank is sucked up the supply path into the internal space of the fourth chamber, and the liquid is sucked into the internal space of the fourth chamber. When the liquid contained in the liquid tank is sucked, the gas outside the fourth chamber is sucked into the internal space of the first chamber through the supply path, and the gas inside the first chamber is sucked. When the air pressure rises to at least the fourth threshold value, the fourth check valve is preferably closed.

In the above-mentioned pump system, the first chamber is provided in a suction path for sucking the liquid, allowing the flow of the liquid in the suction direction and blocking the flow of the liquid in the opposite direction. The check valve and the first chamber are provided in the discharge path for discharging the liquid, and a second reverse reverse valve that allows the flow of the liquid in the discharge direction and blocks the flow of the liquid in the reverse direction. It is preferable to provide a check valve.

Further, the first check valve and the second check valve are respectively.
A valve arranged so that the liquid flows in the vertical direction when in the open state,
A vortex generating frame having a vortex generating portion that holds the valve and guides the flow of air rising from the lower surface downward in the vicinity of the region where the liquid flows is provided around the region where the liquid flows from the valve. Good.

Here, the first pressurizing bag has a reverse water droplet shape having a substantially circular shape on the upper side and a tapered shape on the lower side in a front view, and is formed during pressurization and depressurization of the first pressurization bag. It is preferable to generate a swirl flow due to the liquid inside.

Further, it is desirable that the first pressurizing bag has a tubular member having a large number of holes in connecting the suction path for sucking the liquid and the discharge path for discharging the liquid.

Further, the first pressurizing bag may have a frame built in the outermost peripheral edge portion for holding the front shape of the first pressurizing bag.

In the pump system according to one embodiment of the present disclosure, a first chamber in which the internal space forms at least a part of an airtight space and gas is housed in the internal space, and
A first pressurizing bag that is arranged in the internal space of the first chamber and deforms with a change in air pressure in the internal space of the first chamber to suck or discharge a liquid.
A second chamber in which the interior space forms at least a part of the airtight space and the gas is housed in the interior space.
A second pressurizing bag arranged in the internal space of the second chamber, connected in series with the first pressurizing bag, and alternately arranged with the first pressurizing bag.
A third chamber in which the interior space forms at least a part of the airtight space and the gas is housed in the interior space.
A third pressurizing back, which is arranged in the internal space of the third chamber and deforms with a change in the air pressure in the internal space of the third chamber to suck or discharge the liquid.
A fourth chamber in which the interior space forms at least a part of the airtight space and the gas is housed in the interior space.
A fourth pressurizing bag arranged in the internal space of the fourth chamber, connected in series with the third pressurizing bag, and alternately arranged with the third pressurizing bag.
A plurality of check valves arranged between the first pressurizing bag and the second pressurizing bag, and between the third pressurizing bag and the fourth pressurizing bag.
The first chamber, the second chamber, the third chamber, and the fourth chamber are each provided with a pressure changing portion that changes the pressure in the internal space of each of the first chamber, the second chamber, and the fourth chamber.
The atmospheric pressure change part is
As the air pressure in the internal space of the second chamber is lowered, the second pressurizing bag is expanded and the air pressure in the internal space of the first chamber is increased to increase the pressure in the first chamber. Shrink the pressure chamber,
As the air pressure in the internal space of the first chamber is lowered, the first pressurizing bag is expanded and the air pressure in the internal space of the second chamber is increased to increase the pressure in the second chamber. Shrink the pressure chamber,
As the air pressure in the internal space of the third chamber is lowered, the fourth pressurizing bag is expanded and the air pressure in the internal space of the third chamber is increased to increase the pressure in the third chamber. Shrink the pressure chamber,
Along with lowering the air pressure in the internal space of the third chamber, the third pressurizing bag is expanded and the air pressure in the internal space of the fourth chamber is increased to increase the pressure in the fourth chamber. Shrink the compression chamber.

Here, the atmospheric pressure change part is
A first blower connected to the first chamber and a first connecting tube connected to the fourth chamber,
It has a second chamber and a second blower connected to a second connecting tube connected to the third chamber.
When pressurizing with the first blower, it is preferable to reduce the pressure with the second blower, and when depressurizing with the first blower, it is preferable to pressurize with the second blower.

According to the above-described form, it is possible to realize a pump system that can obtain a large potential energy with a small kinetic energy.

It is a perspective view which shows typically the pumping pump system of Embodiment 1. FIG. It is sectional drawing which shows typically the pumping pump system of Embodiment 1. FIG. It is a figure which shows the static pressure vector which acts on a pressure bag when the air pressure of the internal space of a chamber is lowered. It is a figure which shows the fluid pressurization vector which acts on a pressurization bag when the air pressure of the internal space of a chamber is lowered. It is a figure for demonstrating the lift generated when the air pressure of the internal space of a chamber is lowered. It is a figure which shows the static pressure vector which acts on a pressure bag when the air pressure of the internal space of a chamber is raised. It is a figure which shows the fluid pressurization vector which acts on a pressurization bag when the air pressure of the internal space of a chamber is raised. It is a figure for demonstrating the lift generated when the air pressure of the internal space of a chamber is raised. It is a perspective view which shows typically the pumping pump system of Embodiment 2. It is sectional drawing which shows typically the pumping pump system of Embodiment 2. It is a figure which shows the state which expands the expansion bag and pushes the substantially central part of the side wall part of a pressure bag. It is sectional drawing which shows typically the different pumping pump system of Embodiment 2. It is a figure which shows the state which locally pulls in the substantially central portion of the side wall portion of the pressure back in the form in which the side wall portion of the expansion bag and the substantially central portion of the side wall portion of the pressure back are adhered. It is a front view which shows typically the pressurizing bag of Embodiment 3. It is a front view which shows typically the different pressurizing bag of Embodiment 3. It is a front view which shows typically the further different pressure bag of Embodiment 3. It is a figure for demonstrating how the side wall part of a pressurizing bag is pushed outward by the repulsive force of a tension part. It is a perspective view which shows typically the pumping pump system of Embodiment 4. It is a figure for demonstrating the state of discharging the liquid from a pressurizing bag in the pumping system of Embodiment 4. FIG. It is a figure for demonstrating the state of sucking a liquid into a pressurizing bag in the pumping system of Embodiment 4. FIG. It is a perspective view which shows typically the different pumping pump systems of Embodiment 4. It is a perspective view which shows typically the pumping pump system of Embodiment 5. It is a perspective view which shows the atmospheric pressure change part of the pump system of Embodiment 6. It is a figure for demonstrating the state of discharging the liquid from the 2nd pressurizing bag in the pumping system of Embodiment 6. It is a figure for demonstrating the mode of switching from the 1st flow path to the 2nd flow path in the pump system of Embodiment 6. It is a figure for demonstrating the state of discharging the liquid from the 1st pressurizing bag in the pumping system of Embodiment 6. It is a figure which shows the structure of the switching part in the atmospheric pressure change part of Embodiment 7. It is a perspective view which shows typically the pumping pump system of Embodiment 8. FIG. 5 is a partially enlarged view of the pumping system of the eighth embodiment. It is a perspective view which shows the 2nd chamber of the pumping pump system of Embodiment 8. It is a perspective view which shows the 2nd pressurizing bag of the pumping pump system of Embodiment 8. It is a perspective view which shows typically the pumping pump system of Embodiment 9. It is a perspective view which shows typically the different pumping pump systems of Embodiment 9. It is a perspective view which shows typically the pumping pump system of Embodiment 10. It is a perspective view which shows typically the pumping pump system of Embodiment 11. It is a perspective view which shows typically the pumping pump system of Embodiment 12. It is a figure which shows the pressurizing bag of the pumping pump system of Embodiment 13. It is a figure which shows the shape of the pressurizing bag of the pumping pump system of Embodiment 13. It is a figure for demonstrating the pressurizing bag of the pumping pump system of Embodiment 13. It is a figure for demonstrating the functional operation of the pressurizing bag of the pumping pump system of Embodiment 13. It is a figure for demonstrating the functional operation of the pressurizing bag of the pumping pump system of Embodiment 13. It is a figure for demonstrating the functional operation of the pressurizing bag of the pumping pump system of Embodiment 13. It is a figure for demonstrating the functional operation of the pressurizing bag of the pumping pump system of Embodiment 13. It is a figure for demonstrating the characteristic of the pressurizing bag of the pumping pump system of Embodiment 13. It is a perspective view which shows typically the pumping pump system of Embodiment 13. It is a perspective view which shows typically the pumping pump system of Embodiment 13. It is a perspective view which shows typically the pumping pump system of Embodiment 13. It is sectional drawing which shows the check valve of the pumping pump system of Embodiment 13. It is a perspective view which shows a part of the check valve of the pumping system of Embodiment 13. It is a figure explaining the operation of the check valve of the pumping pump system of Embodiment 13. It is a perspective view which shows typically the pumping pump system of Embodiment 13.

Hereinafter, specific embodiments to which the present disclosure is applied will be described in detail with reference to the drawings. However, the present disclosure is not limited to the following embodiments. Further, in order to clarify the explanation, the following description and drawings are simplified and made transparent as appropriate. Furthermore, although the liquid is shown by hatching, it may be partially omitted to clarify the composition.

<Embodiment 1>
First, the configuration of the pumping system of the present embodiment will be described. FIG. 1 is a perspective view schematically showing a pumping system of the present embodiment. FIG. 2 is a cross-sectional view schematically showing the pumping system of the present embodiment. As shown in FIGS. 1 and 2, the pump system 1 of the present embodiment includes a chamber 2, a pressurizing bag 3, and a pressure changing unit 4.

The chamber 2 is provided with an internal space 2a in which a gas is housed, and has a rigidity that does not substantially deform even if the air pressure in the internal space 2a changes. The gas contained in the internal space 2a of the chamber 2 will be described in detail later, but can be appropriately selected according to the change in atmospheric pressure required for expanding and contracting the pressurizing bag 3. Here, the shape of the internal space 2a of the chamber 2 is preferably a cylindrical shape so that the repulsive force is directed toward the center when the air pressure in the internal space 2a is changed.

The pressurizing bag 3 is a deformable resin bag (for example, a vinyl bag), and a liquid such as water is stored inside the pressurizing bag 3. The liquid contained in the pressurizing bag 3 is not limited to water, and may be, for example, one that is stable against temperature changes.

The pressurizing bag 3 basically has a substantially square shape when the pressurizing bag 3 is viewed from the front, and the upper and lower ends of the pressurizing bag 3 are closed. The pressurizing bag 3 has a shape that is narrowed toward the upper end or the lower end of the pressurizing bag 3 when the pressurizing bag 3 is viewed from the side. That is, the pressure bag 3 is shaped like a so-called blood transfusion bag, for example. However, the shape of the pressurizing bag 3 is not particularly limited, and may be a tubular shape as long as it can be deformed with a change in the atmospheric pressure in the internal space 2a of the chamber 2 as described later.

The pressurizing bag 3 is supported in a state of being housed in the internal space 2a of the chamber 2. The pressurizing bag 3 may be suspended and supported in, for example, the internal space 2a of the chamber 2. However, the pressurizing bag 3 may be arranged so as to suppress a decrease in the contact area between the outer surface of the pressurizing bag 3 and the gas in the internal space 2a of the first chamber 2.

The discharge path 6 and the suction path 7 are connected to the pressurizing bag 3. The discharge path 6 is a flow path for discharging the liquid from the pressurizing bag 3. The discharge path 6 is, for example, a pipe body made of a material having a higher rigidity than the pressure bag 3. Then, one end of the discharge path 6 is passed from the upper part of the pressurizing bag 3 to the inside of the pressurizing bag 3, and the other end of the discharge path 6 is passed from the chamber 2 to the outside, and the chamber 2 is passed. The liquid is arranged so that the liquid can be discharged to the liquid tank 8 arranged outside the above. At this time, the gap between the discharge path 6 and the chamber 2 and the pressurizing bag 3 is closed.

A check valve 9 is provided in the discharge path 6. The check valve 9 allows the flow of liquid from one end of the discharge path 6 toward the other end and blocks the flow of liquid in the opposite direction. As the check valve 9, a general check valve can be used, and for example, a duck bill valve may be used.

The suction path 7 is a flow path for sucking the liquid into the pressurizing bag 3. The suction passage 7 is, for example, a pipe body made of a material having a higher rigidity than the pressure bag 3. Then, one end of the suction path 7 is passed from the lower part of the pressurizing bag 3 to the inside of the pressurizing bag 3, and the other end of the suction path 7 is passed from the chamber 2 to the outside, and the chamber 2 is passed. The liquid is arranged so that the liquid can be sucked from the liquid tank 10 arranged outside the above. At this time, the gap between the suction path 7 and the chamber 2 and the pressurizing bag 3 is closed.

A check valve 11 is provided in the suction passage 7. The check valve 11 allows the flow of liquid from the other end of the suction path 7 toward one end and blocks the flow of liquid in the opposite direction. As the check valve 11, a general check valve can be used, and for example, a duck bill valve may be used. The position where the discharge path 6 and the suction path 7 are passed through the pressurizing bag 3 is not limited.

The atmospheric pressure changing unit 4 changes the atmospheric pressure in the internal space 2a of the chamber 2. The air pressure changing unit 4 of the present embodiment includes a pump 12 connected to the chamber 2, and by operating the pump 12, the air pressure in the internal space 2a of the chamber 2 is changed. Therefore, the chamber 2 and the atmospheric pressure changing portion 4 form a substantially sealed space.

Next, the operation of the pump system 1 when pumping the liquid using the pump system 1 of the present embodiment will be described. First, the operation of the pump system 1 when sucking the liquid by the pump system 1 will be described. FIG. 3 is a diagram showing a static pressurization vector acting on the pressurization bag when the air pressure in the internal space of the chamber is lowered. FIG. 4 is a diagram showing a fluid pressurization vector acting on the pressurization bag when the air pressure in the internal space of the chamber is lowered. FIG. 5 is a diagram for explaining the lift generated when the air pressure in the internal space of the chamber is lowered.

Here, it is assumed that the inside of the suction path 7 and the pressurizing bag 3 is filled with the liquid in advance. However, the pressurizing bag 3 is in a state where it can expand and suck the liquid inside. When the pump 12 operates from such a state and the gas in the internal space 2a of the chamber 2 is sucked from the internal space 2a of the chamber 2, the air pressure in the internal space 2a of the chamber 2 decreases. As a result, as shown in FIG. 3, an expansion pressure uniformly acts on the outer surface of the pressurizing bag 3, and the liquid is sucked from the liquid tank 10 into the pressurizing bag 3 via the suction path 7.

At this time, as shown in FIGS. 4 and 5, the lower part of the pressurizing bag 3 balances the gravity due to the liquid and the repulsive force of the pressurizing bag 3, and the upper part of the pressurizing bag 3 is the liquid level of the liquid. Due to the tension, the liquid and the inner surface of the pressurizing bag 3 are in close contact with each other, and the upper and lower portions of the pressurizing bag 3 are in a state of being hard to be deformed. Therefore, the expansion pressure is concentrated in the substantially central portion of the side wall portion of the pressurizing bag 3, which is most easily deformed.

As a result, the substantially central portion of the side wall portion of the pressure back 3 is pulled in the substantially horizontal direction, and the liquid moves in the horizontal direction in which gravity does not substantially act. Then, as the liquid moves in the horizontal direction and the liquid is sucked, the liquid flows inside the pressurizing bag 3 and lift is generated. By moving the liquid in a substantially horizontal direction in which gravity does not act in this way, lift can be generated without being affected by gravity, and the liquid can be sucked. Moreover, the lift force allows the center of gravity of the liquid inside the pressurizing bag 3 to be placed at a high position. That is, potential energy can be earned.

Next, the operation of the pump system 1 when discharging the liquid from the pump system 1 will be described. FIG. 6 is a diagram showing a static pressurization vector acting on the pressurization bag when the air pressure in the internal space of the chamber is increased. FIG. 7 is a diagram showing a fluid pressurization vector acting on the pressurization bag when the air pressure in the internal space of the chamber is increased. FIG. 8 is a diagram for explaining the lift generated when the air pressure in the internal space of the chamber is increased.

Here, it is assumed that the inside of the suction path 7 and the pressurizing bag 3 is filled with the liquid in advance. When the pump 12 operates from such a state and gas is supplied to the internal space 2a of the chamber 2, the air pressure in the internal space 2a of the chamber 2 rises. As a result, as shown in FIG. 6, a contraction pressure is uniformly applied to the outer surface of the pressurizing bag 3, and the liquid is discharged from the pressurizing bag 3 through the discharge path 6.

At this time, as shown in FIGS. 7 and 8, the lower part of the pressurizing bag 3 balances the gravity due to the liquid and the repulsive force of the pressurizing bag 3, and the upper part of the pressurizing bag 3 is the liquid level of the liquid. Due to the tension, the liquid and the inner surface of the pressurizing bag 3 are in close contact with each other, and the upper and lower portions of the pressurizing bag 3 are in a state of being hard to be deformed. Therefore, the contraction pressure is concentrated in the substantially central portion of the side wall portion of the pressurizing bag 3, which is most easily deformed.

As a result, the substantially central portion of the side wall portion of the pressure back 3 is pushed in the substantially horizontal direction, and the liquid moves in the horizontal direction in which gravity does not substantially act. Then, as the liquid moves in the horizontal direction and is discharged, the liquid flows inside the pressurizing bag 3 and lift is generated. By moving the liquid in a substantially horizontal direction in which gravity does not act in this way, lift can be generated without being affected by gravity, and the liquid can be discharged. Moreover, the lift force allows the center of gravity of the liquid inside the pressurizing bag 3 to be placed at a high position. That is, potential energy can be earned.

As described above, the lift pump system 1 of the present embodiment moves the liquid in a substantially horizontal direction in which gravity does not act to generate lift without being affected by gravity, and sucks and discharges the liquid. Can be done. Therefore, there is almost no idling loss and a large potential energy can be obtained with a small kinetic energy as compared with a configuration in which the liquid is directly pumped by the kinetic energy of a pump such as a general pump system. That is, in a typical pump system, the higher the position where the liquid is sucked and discharged, the heavier the weight of the liquid due to gravity increases, and as a result, the dead energy, which is the idling loss, increases. In the pump system 1 of the embodiment, there is almost no ineffective energy, and the liquid can be discharged and sucked. Therefore, the pump system 1 of the present embodiment has dramatically improved efficiency as compared with a general pump system, and can pump liquid using an extremely small pump 12.

Moreover, since the expansion pressure and the contraction pressure can be concentrated in the substantially central portion of the side wall portion of the pressure back 3, the expansion pressure and the contraction pressure are dispersed in the side wall portion of the pressure back 3 and act as compared with the case where the expansion pressure and the contraction pressure act. , Can generate a large lift. The portion where the side wall portion of the pressurizing bag 3 is deformed can be appropriately set depending on the shape and material of the pressurizing bag 3.

Further, since the center of gravity of the liquid inside the pressurizing bag 3 can be arranged at a high position by lift, the liquid can be discharged with a smaller power. Furthermore, since the liquid is moved through a gas that is extremely lighter than the liquid, the liquid can be pumped with extremely small power.

<Embodiment 2>
FIG. 9 is a perspective view schematically showing the pumping system of the present embodiment. FIG. 10 is a cross-sectional view schematically showing the pumping system of the present embodiment. FIG. 11 is a diagram showing a state in which the expansion bag is expanded and the substantially central portion of the side wall portion of the pressure bag is pushed in.

The pumping system 21 of the present embodiment has substantially the same configuration as the pumping system 1 of the first embodiment, but the configuration of the atmospheric pressure changing unit 22 is different. Therefore, the description overlapping with the first embodiment will be omitted, and the description of the atmospheric pressure changing unit 22 will be mainly described. In the following description, the same members as those of the pump system 1 of the first embodiment will be described by using the same reference numerals.

As shown in FIGS. 9 and 10, the atmospheric pressure changing unit 22 includes an expansion back 23 and a first pump 24. The expansion back 23 is arranged in the internal space 2a of the chamber 2. The expansion bag 23 has a configuration substantially equal to, for example, the pressurization bag 3.

However, although the details of the expansion bag 23 will be described later, the expansion bag 23 has a configuration and arrangement capable of pushing in a substantially central portion (that is, a preset portion) of the side wall portion of the pressure back 3 when the expansion bag 23 expands. It suffices if it is done. The first pump 24 supplies gas to the expansion bag 23 and discharges the gas from the expansion bag 23.

When the liquid is discharged using such a pump system 21, when the first pump 24 is operated to supply gas to the expansion bag 23, the expansion bag 23 expands, as shown in FIG. As described above, the pressure in the internal space 2a of the chamber 2 rises, the substantially central portion of the side wall portion of the pressure back 3 is deformed in a substantially horizontal direction, and the expansion back 23 is an abbreviation for the side wall portion of the pressure back 3. Contact the central part and push it in almost horizontal direction.

At this time, since the expansion bag 23 locally pushes the substantially central portion of the side wall portion of the pressurizing bag 3 in the substantially horizontal direction, a large lift force is generated as compared with the lift pump system 1 of the first embodiment. Can be done. Therefore, the pump system 21 of the present embodiment can discharge the liquid with a smaller power than the pump system 1 of the first embodiment.

Here, as shown in FIG. 12, it is preferable that the atmospheric pressure changing unit 22 is provided with a second pump 25 that sucks the gas in the internal space 2a of the chamber 2 when the expansion bag 23 expands. As a result, the cushion pressure loss when the expansion bag 23 comes into contact with the side wall portion of the pressure bag 3 can be reduced.

Further, as shown in FIG. 13, the substantially central portion of the side wall portion of the pressure back 3 and the side wall portion of the expansion bag 23 may be adhered to each other. In this case, when the first pump 24 is operated to suck the gas from the expansion bag 23, the substantially central portion of the side wall portion of the pressurizing bag 3 can be locally pulled in in the substantially horizontal direction. As a result, the liquid can be sucked with a smaller power than that of the pump system 1 of the first embodiment.

<Embodiment 3>
The pressurizing bag 3 of the first and second embodiments has a substantially right-angled square shape when viewed from the front, but as shown in FIG. 14, the first tapered portion 3a in which the lower portion of the pressurizing bag 3 tapers downward. It is preferable that the upper portion of the pressurizing bag 3 is provided with a second tapered portion 3b that tapers upward, and the front view is formed in a substantially right-angled shape.

As a result, the center of gravity of the liquid can be arranged at a higher position than the pressurizing bag 3 of the first and second embodiments, and the water level can be increased. Therefore, the liquid can be discharged with less power. Moreover, as shown in FIG. 14, lift can be generated toward the discharge path 6 side, and a rational pressurizing bag 3 can be realized.

Further, as shown in FIGS. 15 and 16, the pressurizing bag 3 may include a tension portion 3c that applies tension in the vertical direction of the pressurizing bag 3. For example, the tension portion 3c shown in FIG. 15 is an elastically deformable wire rod and is fixed to the side wall portion of the pressure bag 3. Further, for example, the tension portion 3c shown in FIG. 16 is a convex portion formed on the surface of the side wall portion of the pressure bag 3. These tension portions 3c are arranged so as to extend in the vertical direction.

As a result, as shown in FIG. 17, when the liquid is sucked into the pressurizing bag 3, a repulsive force is generated in the tension portion 3c, and the side wall portion of the pressurizing bag 3 is pushed outward. This makes it possible to generate a large lift. In FIG. 17, the thick broken line shows the state of the tension portion 3c before deformation, and the tension portion 3c clearly shows the operation of pushing the side wall portion of the pressure back 3 outward.

The pressurizing bag 3 of the present embodiment includes a first tapered portion 3a and a second tapered portion 3b, but if at least the first tapered portion 3a is provided, the center of gravity of the liquid is set to a high position. Can be placed. Further, the tension portion 3c may be provided on at least one of the outer surface or the inner surface of the pressurizing bag 3.

<Embodiment 4>
FIG. 18 is a perspective view schematically showing the pumping system of the present embodiment. FIG. 19 is a diagram for explaining how the liquid is discharged from the pressure bag. FIG. 20 is a diagram for explaining how the liquid is sucked into the pressure bag. Note that FIGS. 19 and 20 simplify the arrangement of the first flow path 44 and the second flow path 45.

The pumping system 41 of the present embodiment has substantially the same configuration as the pumping system 1 of the first embodiment, but is configured to include a plurality of pressurizing bags 42 and a relay unit 43. different. It should be noted that the description overlapping with other embodiments will be omitted, and the same members as those of the pump system 1 of the pump system 1 of the first embodiment will be described by using the same reference numerals.

The pressurizing bag 42 has, for example, the same configuration as the pressurizing bag 3 shown in FIG. 15, and a plurality of pressurizing bags 42 are arranged in the internal space 2a of the chamber 2 in a state of being arranged in the vertical direction. .. Then, one end of the suction path 7 is passed through the inside of the lowermost pressurizing bag 42, and one end of the discharge path 6 is passed through the inside of the uppermost pressurizing bag 42. There is.

The relay unit 43 is, for example, a liquid tank, capable of accommodating the liquid discharged from the lower pressurizing bag 42 adjacent in the vertical direction via the first flow path 44, and adjacent in the vertical direction. The upper pressurizing bag 42 is arranged outside the chamber 2 so that the liquid can be discharged through the second flow path 45.

Specifically, the first flow path 44 is, for example, a pipe body made of a material having a higher rigidity than the pressure bag 42. One end of the first flow path 44 is passed from the upper part of the lower pressurizing bag 42 to the inside of the lower pressurizing bag 42, and the other end of the first flow path 44 is the chamber 2. The liquid is passed to the outside and is arranged in the relay unit 43 so that the liquid can be discharged. At this time, the gap between the first flow path 44 and the chamber 2 and the lower pressurizing bag 42 is closed.

The second flow path 45 is also, for example, a pipe body made of a material having a higher rigidity than the pressure bag 42. One end of the second flow path 45 is passed from the lower part of the upper pressurizing bag 42 to the inside of the upper pressurizing bag 42, and the other end of the second flow path 45 is the chamber 2. The liquid is passed to the outside from the relay unit 43 and is arranged so that the liquid can be sucked from the relay unit 43. At this time, the gap between the second flow path 45 and the chamber 2 and the upper pressurizing bag 42 is closed.

A check valve 46 is provided in such a first flow path 44. The check valve 46 allows the flow of liquid from one end of the first flow path 44 toward the other end and blocks the flow of liquid in the opposite direction. A check valve 47 is provided in the second flow path 45. The check valve 47 allows the flow of liquid from the other end of the second flow path 45 toward one end and blocks the flow of liquid in the opposite direction.

As the

check valves

46 and 47, general check valves can be used, and for example, a duck bill valve may be used. The first flow path 44 may be arranged so that the liquid can be discharged from the lower pressurizing bag 42 to the relay portion 43. Further, the second flow path 45 may be arranged so that the liquid can be discharged from the relay portion 43 to the upper pressurizing bag 42.

In such a pump system 41, when the liquid inside the pressurizing bag 42 is discharged, when the air pressure in the internal space 2a of the chamber 2 is raised by the pump 12, as shown in FIG. 19, the uppermost stage is added. The pressure back 42 contracts, whereby the check valve 9 opens, and the uppermost pressure back 42 discharges the liquid to the liquid tank 8 via the discharge passage 6.

At the same time, the other pressurizing bag 42 also contracts, whereby the check valve 46 opens, and the other pressurizing bag 42 discharges the liquid to the relay unit 43 via the first flow path 44. At this time, since the relay unit 43 is arranged outside the chamber 2, it expands to accommodate the liquid and hardly pushes the liquid into the pressurizing bag 42. Therefore, the check valve 47 is in a closed state. Since the pressure bags 42 have the same shape, pressure acts on each pressure bag 42 substantially equally, and all the pressure bags 42 contract substantially equally.

On the other hand, when the pressurizing bag 42 sucks the liquid, when the air pressure in the internal space 2a of the chamber 2 is lowered by the pump 12, the lowermost pressurizing bag 42 expands as shown in FIG. The check valve 11 opens, and the lowermost pressurizing bag 42 sucks the liquid from the liquid tank 10 through the suction path 7.

At the same time, the other pressurizing bag 42 also expands, whereby the check valve 47 opens, and the other pressurizing bag 42 sucks the liquid from the relay portion 43 via the second flow path 45. At this time, since the relay unit 43 is arranged outside the chamber 2, it contracts as the liquid is sucked out, and the liquid is hardly sucked from the pressurizing bag 42. Therefore, the check valve 46 is in a closed state. Since the pressure bags 42 have the same shape, pressure acts on each pressure bag 42 substantially equally, and all the pressure bags 42 expand substantially equally.

As described above, in the pump system 41 of the present embodiment, each of the pressure backs 42 is shut off by the check valve 46 or the check valve 47 when the liquid is discharged and sucked, and each pressure back is stopped. The 42 can be operated independently. Therefore, the pressurizing bag 42 arranged at a high position can also discharge and suck the liquid with an idling loss substantially equal to that of the pressurizing bag 42 arranged at a low position. Therefore, the pumping system 41 of the present embodiment can realize a pumping system with almost no idling loss.

Here, it is preferable that at least one of the first flow path 44 and the second flow path 45 is arranged substantially horizontally. As a result, the idling loss when the lower pressurizing bag 42 discharges the liquid to the relay portion 43 and when the upper pressurizing bag 42 sucks the liquid from the relay portion 43 can be further reduced.

Moreover, in the present embodiment, since the pressurizing bag 3 shown in FIG. 15 is used as the pressurizing bag 42, the water level can be maintained at a high position inside the pressurizing bag 42, and the liquid is discharged with a small change in atmospheric pressure. And can be sucked.

Although the relay unit 43 of the present embodiment is composed of a liquid tank, it may be composed of a deformable bag body back as shown in FIG. 21. That is, the relay unit 43 may have a configuration that can temporarily accommodate the liquid discharged from the pressurizing bag 42.

<Embodiment 5>
FIG. 22 is a perspective view schematically showing the pumping system of the present embodiment. The pumping system 51 of the present embodiment has substantially the same configuration as the pumping system 41 of the fourth embodiment, but includes a second chamber 52 and a second pressurizing bag 53, and further has an atmospheric pressure. The configuration of the changing unit 54 is different. Therefore, the description overlapping with other embodiments will be omitted, and the configurations of the second chamber 52, the second pressurizing bag 53, and the atmospheric pressure changing unit 54 will be mainly described. In the following description, the same members as those of the pump system 1 of the first embodiment will be described by using the same reference numerals.

The second chamber 52 is provided with an internal space 52a in which a gas is housed, and has a rigidity that does not substantially deform even if the air pressure in the internal space 52a changes. Then, in the second chamber 52, the gas in the internal space 2a of the chamber (first chamber) 2 and the gas in the internal space 52a of the second chamber 52 can come and go between the first chamber 2 and the first chamber 52. It is connected via a connecting pipe 55 and a second connecting pipe 56. At this time, the first chamber 2 and the second chamber 52 form a part of a substantially enclosed space.

The second pressurizing bag 53 is a bag body that can be deformed in the same manner as the pressurizing bag (first pressurizing bag) 3, and is arranged in the internal space 52a of the second chamber 52. The second pressurizing bag 53 is connected in series with the first pressurizing bag 42 via a communication passage 57 passed through the first chamber 2 and the second chamber 52. At this time, the first pressurizing bag 42 and the second pressurizing bag 53 are arranged alternately.

The communication passage 57 allows the flow of liquid in the direction from the suction path 7 to the discharge path 6 along the first pressurizing bag 42 and the second pressurizing bag 53 connected in series, and in the opposite direction. A check valve 58 that shuts off the flow of liquid is provided. Here, one end of the suction path 7 is passed through the inside of the first pressurizing bag 42 at the bottom. Then, one end of the discharge path 6 is passed through the inside of the second pressurizing bag 53 on the uppermost stage.

The atmospheric pressure changing unit 54 includes a first pump 59 and a second pump 60. The first pump 59 is provided in the first connecting pipe 55, and moves the gas in the internal space 2a of the first chamber 2 to the internal space 52a of the second chamber 52. The second pump 60 is provided in the second connecting pipe 56, and moves the gas in the internal space 52a of the second chamber 52 to the internal space 2a of the first chamber 2.

In such a pump system 51, when the liquid is discharged from the second pressurizing bag 53, the gas in the internal space 2a of the first chamber 2 is transferred to the internal space of the second chamber 52 by the first pump 59. Move to 52a. As a result, the air pressure in the internal space 52a of the second chamber 52 rises, the second pressurizing bag 53 on the uppermost stage contracts, and the liquid is discharged from the second pressurizing bag 53. At the same time, the other second pressurizing bag 53 contracts, and the liquid is discharged to the first pressurizing bag 42 arranged on the side in the direction in which the liquid flows.

At this time, the air pressure in the internal space 2a of the first chamber 2 drops, and the first pressurizing bag 42 at the bottom expands to suck the liquid from the liquid tank 10. At the same time, the other first pressurizing bag 42 expands and positively sucks the liquid from the other second pressurizing bag 53 described above.

Here, the check valve 58 of the communication passage 57 connecting the first pressurizing bag 42 and the second pressurizing bag 53 arranged on the side in the flow direction of the liquid is the second pressurizing. Since the back 53 contracts, it is in a closed state, and the check valve 58 of the communication passage 57 connecting the second pressure back 53 and the first pressure back 42 arranged on the side in the direction in which the liquid flows. Is in an open state because the first pressurizing bag 42 expands.

On the other hand, when the liquid is discharged from the first pressurizing bag 42, the gas in the internal space 52a of the second chamber 52 is moved to the internal space 2a of the first chamber 2 by the second pump 60. As a result, the air pressure in the internal space 2a of the first chamber 2 rises, the first pressurizing bag 42 contracts, and the liquid is applied to the second pressurizing bag 53 arranged on the side in the direction in which the liquid flows. Discharge. At this time, the air pressure in the internal space 52a of the second chamber 52 drops, and the second pressurizing bag 53 expands to actively suck the liquid.

Here, the check valve 58 of the communication passage 57 connecting the second pressurizing bag 53 and the first pressurizing bag 42 arranged on the side in the flow direction of the liquid is the first pressurizing. Since the back 42 contracts, it is in a closed state, and the check valve 58 of the communication passage 57 connecting the first pressure back 42 and the second pressure back 53 arranged on the side in the direction in which the liquid flows. Is in an open state because the second pressurizing bag 53 expands.

As described above, in the pump system 51 of the present embodiment, the first chamber 2 and the second chamber 52 are connected to expand one of the pressurizing bags and contract the other pressurizing bag. Therefore, the pumping efficiency can be synergistically improved.

Moreover, the pumping system 51 of the present embodiment, like the pumping system 41 of the fourth embodiment, shuts off each of the pressurizing

bags

42 and 53 by the check valve 58, and each pressurizing

bag

42 and 53 can be operated independently. Therefore, the

pressure bags

42 and 53 arranged at the high position can also discharge and suck the liquid with an idling loss substantially equal to that of the

pressure bags

42 and 53 arranged at the low position.

Here, it is preferable that the second pressurizing bag 53 has the same configuration as the pressurizing bag 3 shown in FIG. 15, like the first pressurizing bag 42, for example. Then, it is preferable that the end of the communication passage 57 on the suction side is passed through the upper part of one of the pressure bags, and the end of the communication passage 57 on the discharge side is passed through the lower part of the other pressure back. As a result, the liquid can be discharged and sucked with a small change in atmospheric pressure.

Further, when the pump system 51 is viewed from the side, the upper part of one pressurizing bag and the lower part of the other pressurizing bag arranged on the side in the direction in which the liquid flows with respect to the one pressurizing bag. , Should be arranged so as to overlap in the vertical direction. As a result, the liquid can spontaneously flow toward the other pressurizing bag, and the liquid can be poured into the other pressurizing bag without pressure loss. At this time, it is preferable that the discharge port of the check valve 58 faces diagonally downward or directly downward. This makes it possible to reduce the resistance of the liquid due to gravity when the check valve 58 is opened.

<Embodiment 6>
FIG. 23 is a perspective view showing a pressure changing portion of the pump system of the present embodiment. The pumping system 61 of the present embodiment has substantially the same configuration as the pumping system 51 of the fifth embodiment, but the configuration of the atmospheric pressure changing unit 62 is different. Therefore, the description overlapping with other embodiments will be omitted, and the configuration of the atmospheric pressure changing unit 62 will be mainly described. In the following description, the same members as those of the pump system 1 of the first embodiment will be described by using the same reference numerals.

As shown in FIG. 23, the atmospheric pressure changing unit 62 of the present embodiment includes a pump 63 and a switching unit 64. The pump 63 is configured to be capable of sucking and discharging gas, and is, for example, a piston pump. The switching portion 64 includes, for example, a communication passage 64a, a reaction force portion 64b, a pushing portion 64c, a first spring 64d, a second spring 64e, and a slide portion 64f. The communication passage 64a is based on, for example, an inverted U-shaped pipe body, and an opening 64g is formed in the upper part of a horizontal portion below the communication passage 64a.

The communication passage 64a is connected to the pump 63 via the first connecting pipe 65. Further, the lower horizontal portion of the communication passage 64a is connected to the first chamber 2 via the second connecting pipe 66. Further, the lower horizontal portion of the communication passage 64a is connected to the second chamber 52 via the third connecting pipe 67. At this time, the connecting portion between the second connecting pipe 66 and the connecting passage 64a and the connecting portion between the third connecting pipe 67 and the connecting passage 64a are arranged so as to be adjacent to each other.

The reaction force portion 64b is arranged at a horizontal distance from the tip portion of the horizontal portion on the upper side of the communication passage 64a. The pushing portion 64c includes, for example, a main body portion 64h and a supporting portion 64i. The main body portion 64h is formed in an inverted T shape, and includes a first portion 64j extending in a substantially vertical direction and a second portion 64k extending in a substantially horizontal direction.

The support portion 64i has a rod shape extending in a substantially horizontal direction, and is provided in the first portion 64j so as to penetrate the first portion 64j of the main body portion 64h. Then, one end of the support portion 64i is inserted into the tip of the upper horizontal portion of the communication passage 64a so as to be movable in a substantially horizontal direction, and the other end of the support portion 64i is substantially inserted into the reaction force portion 64b. It is inserted so that it can be moved horizontally.

The first spring 64d is arranged between the reaction force portion 64b and the pushing portion 64c, and the supporting portion 64i of the pushing portion 64c is passed through the inside of the first spring 64d. The second spring 64e is arranged between the tip of the horizontal portion on the upper side of the communication passage 64a and the pushing portion 64c, and the supporting portion 64i of the pushing portion 64c is passed through the inside of the second spring 64e.

The slide portion 64f includes a main body portion 64l, a first protruding portion 64m, and a second protruding portion 64n. The main body 64l has a pillar shape having an outer shape corresponding to the inner shape of the communication passage 64a, and the first passage 64o, the second passage 64p, and the common passage 64q are formed. In the first flow path 64o and the second flow path 64p, when one of the flow paths connects the first chamber 2 and the second chamber 52, the other flow path is the first chamber 2. They are arranged adjacent to each other so as not to be connected to the second chamber 52.

In the first flow path 64o, the gas in the internal space 2a of the first chamber 2 flows toward the internal space 52a of the second chamber 52. Two check valves 64r are provided in the first flow path 64o at intervals. The check valve 64r allows the flow of gas from the internal space 2a of the first chamber 2 toward the internal space 52a of the second chamber 52, and blocks the flow of gas in the reverse direction.

In the second flow path 64p, the gas in the internal space 52a of the second chamber 52 flows toward the internal space 2a of the first chamber 2. Two check valves 64s are provided in the second flow path 64p at intervals. The check valve 64s allows the flow of gas from the internal space 52a of the second chamber 52 toward the internal space 2a of the first chamber 2 and blocks the flow of gas in the opposite direction.

One end of the common road 64q communicates with the communication passage 64a, and the other end of the common road 64q is branched. Then, one branch path of the common path 64q is connected between the two check valves 64r of the first flow path 64o, and the other branch path of the common path 64q is two of the second flow paths 64p. It is connected between the check valves 64s.

The first protruding portion 64m and the second protruding portion 64n project from the upper part of the main body portion 64l at intervals and are passed through the opening 64g of the communication passage 64a. The second portion 64k of the push-in portion 64c is arranged between the first protrusion 64m and the second protrusion 64n.

Next, the operation when the liquid is discharged from the second pressurizing bag 53 in the pump system 61 of the present embodiment will be described. FIG. 24 is a diagram for explaining how the liquid is discharged from the second pressurizing bag in the pump system of the present embodiment. In FIG. 24, the switching portion is omitted in order to clarify the operation of the pressurizing

bags

42 and 53. Here, as shown in FIG. 23, the first flow path 64o connects the first chamber 2 and the second chamber 52, and the second protruding portion 64n of the slide portion 64f is the opening of the communication passage 64a. It is in contact with the right edge of 64 g. Then, it is assumed that the air pressure in the internal space 2a of the first chamber 2 is higher than the air pressure in the internal space 52a of the second chamber 52.

In such a state, due to the pressure difference between the internal space 2a of the first chamber 2 and the internal space 52a of the second chamber 52, the gas in the internal space 2a of the first chamber 2 is inside the second chamber 52. It flows into the space 52a. Then, when the gas is drawn by the pump 63, the gas is drawn from the internal space 2a of the first chamber 2, and when the gas is pushed out by the pump 63, the gas is sent out to the internal space 52a of the second chamber 52.

As a result, the air pressure in the internal space 52a of the second chamber 52 rises, and as shown in FIG. 24, the second pressurizing bag 53 on the uppermost stage contracts and the liquid flows from the second pressurizing bag 53. It is discharged. At the same time, the other second pressurizing bag 53 contracts, and the liquid is discharged to the first pressurizing bag 42 arranged on the side in the direction in which the liquid flows.

Next, the operation when the liquid is discharged from the first pressurizing bag 42 in the pump system 61 of the present embodiment will be described. FIG. 25 is a diagram for explaining how the pump system of the present embodiment switches from the first flow path to the second flow path. FIG. 26 is a diagram for explaining how the liquid is discharged from the first pressurizing bag in the pump system of the present embodiment. In FIG. 26, the switching portion is omitted in order to clarify the operation of the pressurizing

bags

42 and 53.

As described above, when the pump 63 continues to operate in a state where the first flow path 64o connects the first chamber 2 and the second chamber 52, as shown in FIG. 23, the pushing portion 64c is temporarily moved. When the slide portion 64f moves to a substantially neutral position between the first protruding portion 64m and the second protruding portion 64n and the pump 63 continues to operate, the air pressure in the internal space 52a of the second chamber 52 drops. As a result, the air pressure inside the communication passage 64a decreases, and as shown by the broken line in FIG. 23, the pushing portion 64c pushes the second spring 64e while moving to the right side.

At this time, the second protruding portion 64n of the slide portion 64f is still in contact with the right edge portion of the opening 64g of the communication passage 64a. Then, the first flow path 64o is in a state where the first chamber 2 and the second chamber 52 are connected.

Then, the pump 63 pushes the gas, the air pressure in the internal space 2a of the first chamber 2 rises, and the air pressure inside the communication passage 64a rises, so that the pushing pressure (that is, the discharge pressure) of the pump 63 is preset. When the pressure exceeds the first threshold value, as shown by the broken line in FIG. 25, the pushing portion 64c moves to the left side, and the pushing portion 64c comes into contact with the first protruding portion 64m of the slide portion 64f to move the slide portion 64f. Push it to the left. The first threshold value can be appropriately changed by changing the repulsive force of the first spring 64d or the like.

As a result, as shown in FIG. 25, the first protruding portion 64m of the slide portion 64f comes into contact with the left edge portion of the opening 64g of the communication passage 64a, and the second flow path 64p becomes the first chamber 2 and the first chamber 2. It switches to the state where it is connected to the chamber 52 of 2.

As a result, due to the pressure difference between the internal space 52a of the second chamber 52 and the internal space 2a of the first chamber 2, the gas in the internal space 52a of the second chamber 52 becomes the internal space 2a of the first chamber 2. It flows in. Then, when the gas is drawn by the pump 63, the gas is sucked from the internal space 52a of the second chamber 52, and when the gas is pushed out by the pump 63, the gas is sent out to the internal space 2a of the first chamber 2.

As a result, the air pressure in the internal space 2a of the first chamber 2 rises, and as shown in FIG. 26, the first pressurizing bag 42 contracts and the second pressure bag 42 is arranged on the side in the direction in which the liquid flows. The liquid is discharged to the pressurizing chamber 53. At this time, the air pressure in the internal space 52a of the second chamber 52 drops, and the second pressurizing bag 53 expands to actively suck the liquid.

As described above, when the pump 63 continues to operate in a state where the second flow path 64p connects the first chamber 2 and the second chamber 52, as shown in FIG. 25, the pushing portion 64c is temporarily moved. When the slide portion 64f moves to a substantially neutral position between the first protruding portion 64m and the second protruding portion 64n and the pump 63 continues to operate, the air pressure in the internal space 2a of the first chamber 2 rises. As a result, the air pressure inside the communication passage 64a rises, and as shown by the broken line in FIG. 25, the pushing portion 64c pushes the first spring 64d while moving to the left side.

At this time, the first protruding portion 64m of the slide portion 64f is still in contact with the left edge portion of the opening 64g of the communication passage 64a. Then, the second flow path 64p is in a state where the first chamber 2 and the second chamber 52 are connected.

Then, the pump 63 draws in gas, the air pressure in the internal space 52a of the second chamber 52 decreases, and the air pressure inside the communication passage 64a decreases, and the drawing pressure (that is, suction pressure) of the pump 63 is preset. When the pressure exceeds the second threshold value, as shown by the broken line in FIG. 23, the pushing portion 64c moves to the right side, and the pushing portion 64c comes into contact with the second protruding portion 64n of the slide portion 64f to move the slide portion 64f. Push it to the right. The second threshold value can be appropriately changed by changing the repulsive force of the second spring 64e or the like.

As a result, as shown in FIG. 23, the second protruding portion 64n of the slide portion 64f comes into contact with the right edge portion of the opening 64g of the communication passage 64a, and the first flow path 64o becomes the first chamber 2 and the first chamber 2. It switches to the state where it is connected to the chamber 52 of 2.

Also in the pump system 61 of the present embodiment as described above, the first chamber 2 and the second chamber 52 are connected to expand one pressurizing bag and contract the other pressurizing bag. Therefore, the pumping efficiency can be synergistically improved.

Moreover, the pumping system 61 of the present embodiment also shuts off each pressurizing bag by the check valve 58 like the pumping system 41 of the fourth embodiment, and each pressurizing bag becomes independent. Can be operated. Therefore, the pressurizing bag arranged at the high position can discharge and suck the liquid with an idling loss substantially equal to that of the pressurizing bag arranged at the low position.

Further, the switching unit 64 can switch the connection of the flow path without relying on electronic control or artificial switching, and can realize a lean pump system. Moreover, the air pressure in the internal space 2a of the first chamber 2 and the internal space 52a of the second chamber 52 can always be optimized, reducing the risk of damage to the first pressure back 42 and the second pressure back 53. be able to.

<Embodiment 7>
The configuration of the switching unit of the atmospheric pressure changing unit is not limited to the configuration of the switching unit 64 of the sixth embodiment, and may be, for example, the configuration of the switching unit described below. FIG. 27 is a diagram showing a configuration of a switching portion in the atmospheric pressure changing portion of the present embodiment. The description that overlaps with the switching unit 64 of the sixth embodiment will be omitted, and the same members will be described by using the same reference numerals.

As shown in FIG. 27, for example, the switching unit 71 has a configuration substantially equal to that of the switching unit 64 of the sixth embodiment, but the first rotor 71a, the second rotor 71b, and the switching gear 71c are used. I have. The first rotor 71a and the second rotor 71b have substantially the same configuration, and include a main body portion 71d and a transmission portion 71e.

The main body 71d is, for example, a spur gear. The transmission portion 71e is an oblique tooth gear fixed to the side surface of the main body portion 71d. The first rotor 71a and the second rotor 71b are rotatably provided on the support portion 71f. Specifically, the support portion 71f has, for example, a tubular body as a basic form, and a second portion 64k of the push portion 64c is housed inside the support portion 71f.

The support portion 71f is configured to allow the push-in portion 64c to move in the horizontal direction. Here, at both ends of the second portion 64k of the pushing portion 64c, the transmission portions 71e of the first rotor 71a and the second rotor 71b arranged inward of the support portion 71f are engaged with each other. A possible tooth portion 71 g is formed.

The switching gear 71c has, for example, a cylindrical member having teeth formed on its outer peripheral surface as a basic form, and is meshed with the main body 71d of the first rotor 71a and the second rotor 71b. The switching gear 71c is formed with a first flow path 71h, a second flow path 71i, a first communication path (not shown), and a second communication passage 71j.

The first flow path 71h and the second flow path 71i are formed so as to penetrate, for example, the switching gear 71c in the axial direction of the switching gear 71c, and are spaced by about 180 ° in the circumferential direction of the switching gear 71c. Is placed open.

In the first flow path 71h, the gas in the internal space 2a of the first chamber 2 flows toward the internal space 52a of the second chamber 52. Two check valves 71k are provided in the first flow path 71h at intervals. The check valve 71k allows the flow of gas from the internal space 2a of the first chamber 2 toward the internal space 52a of the second chamber 52, and blocks the flow of gas in the reverse direction.

In the second flow path 71i, the gas in the internal space 52a of the second chamber 52 flows toward the internal space 2a of the first chamber 2. Two check valves 71l are provided in the second flow path 71i at intervals. The check valve 71l allows the flow of gas from the internal space 52a of the second chamber 52 toward the internal space 2a of the first chamber 2 and blocks the flow of gas in the reverse direction.

One end of the first communication passage is arranged so as to communicate with the tip of the lower horizontal portion of the communication passage 64a, and the other end of the first communication passage is of the first communication passage 71h. It is connected between two check valves 71k. One end of the second communication passage 71j is arranged so as to communicate with the tip of the lower horizontal portion of the communication passage 64a, and the other end of the second communication passage 71j is the second passage. It is connected between the two check valves 71l of the 71i.

At this time, one end of the first communication passage and one end of the second communication passage 71j are arranged at intervals of about 180 ° in the circumferential direction of the switching gear 71c. When the first communication passage communicates with the communication passage 64a, the first communication passage 71h connects the second connection pipe 66 and the third connection pipe 67, and the second communication passage 71j In the state of communicating with the communication passage 64a, the second flow path 71i connects the second connection pipe 66 and the third connection pipe 67.

In such a switching portion 71, when switching from the first flow path 71h to the second flow path 71i, the pushing portion 64c moves to the left side and the tooth portion 71g of the second portion 64k becomes the first rotor 71a. The first rotor 71a rotates when it meshes with the transmission portion 71e of the above.

Then, when the rotational driving force of the first rotor 71a is transmitted to the switching gear 71c, the switching gear 71c rotates by about 180 ° and the second communication passage 71j of the switching gear 71c communicates with the communication passage 64a. It becomes a state. As a result, the first flow path 71h can be switched to the second flow path 71i.

On the other hand, when switching from the second flow path 71i to the first flow path 71h, the pushing portion 64c moves to the right and the tooth portion 71g of the second portion 64k meshes with the transmission portion 71e of the second rotor 71b. Then, the second rotor 71b rotates.

Then, when the rotational driving force of the second rotor 71b is transmitted to the switching gear 71c, the switching gear 71c rotates by about 180 ° and the first communication passage of the switching gear 71c communicates with the communication passage 64a. It becomes. As a result, the second flow path 71i can be switched to the first flow path 71h.

The configuration of the switching unit 64 of the sixth embodiment and the switching unit 71 of the seventh embodiment is an example, and the switching unit is a connection between the first chamber 2 and the second chamber 52 by the first flow path. And the connection between the first chamber 2 and the second chamber 52 by the second flow path may be switched.

For example, the intake pipe and the exhaust pipe are connected to the first chamber 2, the intake pipe and the exhaust pipe are connected to the second chamber 52, and the switching portion is the exhaust pipe of the first chamber 2 and the second chamber 52. The connection with the intake pipe of the first chamber 2 and the connection between the intake pipe of the first chamber 2 and the exhaust pipe of the second chamber 52 may be switched based on the detection value of the pressure sensor.

At this time, a common path provided with two check valves is formed in the switching portion, and the exhaust pipe of the first chamber 2 and the intake pipe of the second chamber 52 and the common path of the switching portion are formed. The first flow path is formed, and the second flow path is formed by the intake pipe of the first chamber 2, the exhaust pipe of the second chamber 52, and the common path of the switching portion.

<Embodiment 8>
FIG. 28 is a perspective view schematically showing the pumping system of the present embodiment. FIG. 29 is a partially enlarged view of the pumping system of the present embodiment. FIG. 30 is a perspective view showing a second chamber of the pump system of the present embodiment. FIG. 31 is a perspective view showing a second pressurizing bag of the pump system of the present embodiment. Note that FIGS. 28 and 29 are simplified by omitting the check valve 58 and the like.

As shown in FIG. 28, the pumping system 81 of the present embodiment has a configuration substantially equal to that of the pumping system 41 of the fourth embodiment and the pumping system 51 of the fifth embodiment. The configurations of the second chamber 82 and the second pressurizing bag 83 are different. Therefore, the description overlapping with other embodiments will be omitted, and the configurations of the second chamber 82 and the second pressurizing bag 83 will be mainly described. In the following description, the same members as those of the pump system 1 of the first embodiment will be described by using the same reference numerals.

Here, in the pump system 81 of the present embodiment, one end of the discharge path 6 is connected to the first pressurizing back 42 on the uppermost stage, but when the liquid is discharged and sucked. The movement of the liquid is equivalent to the pump system 41 of the fourth embodiment.

As shown in FIGS. 28 and 29, the second chamber 82 of the present embodiment is arranged for each second pressurizing bag 83. Specifically, as shown in FIG. 30, the second chamber 82 has a ring shape, and the inner peripheral surface of the second chamber 82 is fixed to the outer peripheral surface of the first chamber 2. Then, on the upper surface of the second chamber 82, a second through hole 82b through which the communication passage 57 for sucking the liquid from the first through hole 82a and the first pressurizing bag 3 is passed is formed. There is.

On the lower surface of the second chamber 82, a third through hole 82c is formed through which a communication passage 57 for discharging the liquid from the second pressurizing bag 83 to the first pressurizing bag 42 is passed. .. At this time, the gap between the second through hole 82b of the second chamber 82 and the communication passage 57 and the gap between the third through hole 82c of the second chamber 82 and the communication passage 57 are closed. ..

The second pressurizing bag 83 is housed inside the second chamber 82. As shown in FIG. 31, for example, the second pressurizing bag 83 has a ring shape, and the communication passage 57 for sucking the liquid from the first pressurizing bag 42 is the second pressurizing bag 83. A communication passage 57 connected to the upper surface and for discharging the liquid to the first pressurizing bag 42 is connected to the lower surface of the second pressurizing bag 83.

By providing the second chamber 82 for each of the second pressurizing bags 83 in this way, the second pressurizing bag 83 can be easily arranged at a predetermined height.

<Embodiment 9>
The pump system 81 of the eighth embodiment uses the atmospheric pressure changing unit 4 of the first embodiment, but the atmospheric pressure changing unit of each of the above-described embodiments can be appropriately used to change the atmospheric pressure. The composition of the part is not limited.

For example, the atmospheric pressure changing unit 91 shown in FIG. 32 includes a pump 92 that changes the atmospheric pressure in the internal space 2a of the first chamber 2 and the internal space 82d of the second chamber 82 by utilizing the change in the sea level due to the waves. ing.

Specifically, the pump 92 includes a covering portion 93. The cover portion 93 is formed, for example, in a box shape in which the bottom surface of the cover portion 93 is open, covers the sea surface, and is arranged so that seawater can enter and exit through the opening 93a. Then, the covering portion 93 is connected to the switching portion 64 via, for example, the first connecting pipe 65. However, the arrangement of the opening 93a is not limited as long as the covering portion 93 has a configuration in which seawater can enter and exit at a portion lower than the sea level.

Such a pump 92 operates as a piston pump that pushes out the gas inside the covering portion 93 due to the rise in the sea level due to the waves and sucks the gas into the inside of the covering portion 93 due to the decrease in the sea level due to the waves. Therefore, the pump 92 can be used in place of the pump 63 of the sixth embodiment. Here, in the present embodiment, the third connecting pipe 67 is connected to the first through hole 82a of the second chamber 82.

However, as shown in FIG. 33, the pump 92 utilizes the change in sea level between high tide and low tide, not the change in sea level due to waves, and the internal space 2a of the first chamber 2 and the second chamber 82. The air pressure of the internal space 82d of the above may be changed.

<Embodiment 10>
FIG. 34 is a perspective view schematically showing the pumping system of the present embodiment. Note that FIG. 34 is simplified by omitting the check valve 58 and the like. The pumping system 101 of the present embodiment has substantially the same configuration as the pumping system of the ninth embodiment, but the configuration of the atmospheric pressure changing unit 102 is different. Therefore, the description overlapping with other embodiments will be omitted, and the description of the configuration of the atmospheric pressure changing unit 102 will be mainly described. In the following description, the same members as those of the pump system 1 of the first embodiment will be described by using the same reference numerals.

As shown in FIG. 34, the atmospheric pressure changing unit 102 of the present embodiment uses the sun as a heat source to change the atmospheric pressure in the internal space 2a of the first chamber 2 and the internal space 82d of the second chamber 82. It has. The pump 103 includes, for example, a chamber 104 and a heat collector 105.

The chamber 104 has a rigidity that does not substantially deform even if the atmospheric pressure in the internal space 104a of the chamber 104 changes, and is connected to the switching portion 64 via the first connecting pipe 65. The heat collector 105 absorbs the irradiation heat of the sun and releases the absorbed irradiation heat to heat the gas in the internal space 104a of the chamber 104.

The heat collector 105 is, for example, a black sponge, and is arranged in the internal space 104a of the chamber 104 when the chamber 104 is capable of transmitting sunlight. On the other hand, when the chamber 104 cannot transmit sunlight, it is arranged so as to cover at least a part of the chamber 104.

The heat collector 105 may be arranged either inside or outside the chamber 104 as long as it can heat the gas in the internal space 104a of the chamber 104. Further, the heat collector 105 is not limited to the black sponge, and may be any member as long as it can absorb and release the irradiation heat.

In such a pump 103, when sunlight is applied to the heat collector 105, the heat collector 105 absorbs and releases the irradiation heat. As a result, the gas in the internal space 104a of the chamber 104 is warmed and expanded, and the gas in the internal space 104a of the chamber 104 is pushed out. On the other hand, when the amount of irradiation of the heat collector 105 with sunlight decreases, the amount of heat radiated by the heat collector 105 decreases. As a result, the gas in the internal space 104a of the chamber 104 is cooled and contracted, and the gas is sucked into the internal space 104a of the chamber 104. Therefore, the pump 103 can be used in place of the pump 92 of the ninth embodiment.

In the present embodiment, since the heat collector 105 is composed of a black sponge, the contact area of the internal space 104a of the chamber 104 with the gas can be increased, and the gas in the internal space 104a of the chamber 104 can be efficiently used. Can be warmed. When the chamber 104 is made of a material that can absorb sunlight and dissipate heat, the chamber 104 may function as a heat collector 105.

Here, it is preferable that the pump system 101 of the present embodiment includes the atmospheric pressure adjusting unit 106. The air pressure adjusting unit 106 includes a chamber 107, a discharge passage 108, a liquid tank 109, and a supply passage 110. The chamber 107 has a rigidity that does not substantially deform even if the atmospheric pressure in the internal space 107a of the chamber 107 changes, and is connected to the first chamber 2 via a connecting pipe 111.

The internal space 2a of the first chamber 2, the internal space 82d of the second chamber 82, the internal space 104a of the chamber 104, and the internal space 107a of the chamber 107 form a substantially sealed space. There is. The bottom of such a chamber 107 functions as a water storage unit for storing liquid.

The discharge passage 108 is, for example, a pipe body having an inner diameter extremely smaller than the inner diameter of the communication passage 57. One end of the discharge passage 108 is arranged near the bottom of the internal space 107a of the chamber 107, and the other end of the discharge passage 108 is passed to the outside of the chamber 107 so that the liquid can be discharged to the liquid tank 109. It is placed in a position.

A check valve 112 is provided in the discharge path 108. The check valve 112 allows the flow of liquid from one end of the discharge path 108 toward the other end and blocks the flow of liquid in the opposite direction. As the check valve 112, a general check valve can be used, and for example, a piston type check valve is preferable. At the highest height H1 of such a discharge path 108, the liquid stored in the bottom of the chamber 107 reaches when the air pressure in the internal space 2a of the first chamber 2 reaches a preset third threshold value. It is said to be high.

The liquid tank 109 is arranged outside the chamber 107. The supply path 110 is also, for example, a pipe body having an inner diameter extremely smaller than the inner diameter of the communication passage 57. One end of the supply path 110 is arranged near the bottom of the liquid tank 109, and the other end of the supply path 110 is passed through the internal space 107a of the chamber 107.

A check valve 113 is provided in the supply path 110. The check valve 113 allows the flow of liquid from one end of the supply path 110 toward the other end and blocks the flow of liquid in the opposite direction. As the check valve 113, a general check valve can be used, and for example, a piston type check valve is preferable. The highest height H2 of such a supply path 110 is the height reached by the liquid stored in the liquid tank 109 when the air pressure in the internal space 2a of the first chamber 2 reaches a preset fourth threshold value. It is said to be.

In such a pressure adjusting unit 106, when the air pressure in the internal space 2a of the first chamber 2 becomes higher than the third threshold value, the liquid stored in the chamber 107 climbs the discharge path 108 and is discharged to the liquid tank 109. Will be done. Then, when the liquid stored in the chamber 107 is discharged, the gas in the internal space 2a of the first chamber 2 is discharged through the discharge path 108, and the pressure in the internal space 2a of the first chamber 2 becomes the third. When the value drops to the threshold value of, the check valve 112 closes due to the weight of the piston of the check valve 112.

On the other hand, when the air pressure in the internal space 2a of the first chamber 2 becomes lower than the fourth threshold value, the liquid stored in the liquid tank 109 climbs the supply path 110 and is sucked into the internal space 107a of the chamber 107. Then, when the liquid stored in the liquid tank 109 is sucked, the gas outside the chamber 107 is sucked into the internal space 2a of the first chamber 2 through the supply path 110, and the internal space of the first chamber 2 is sucked. When the pressure of 2a rises to the fourth threshold value, the check valve 113 closes due to the weight of the piston of the check valve 113.

By operating the air pressure adjusting unit 106 in this way, the air pressure in the internal space 2a of the first chamber 2 and the internal space 82d of the second chamber 82 can be adjusted. Therefore, for example, even if the change in air pressure in the internal space 2a of the first chamber 2 and the internal space 82d of the second chamber 82 is unstable, the air pressure adjusting unit 106 allows the internal space 2a and the first chamber 2 to change. The air pressure in the internal space 82d of the second chamber 82 can always be optimized, and the risk of damage to the first pressurizing bag 42 and the second pressurizing bag 83 can be reduced. At this time, the atmospheric pressure adjusting unit 106 can easily set the third threshold value and the fourth threshold value by utilizing the idling loss corresponding to the height of the discharge path 108 and the supply path 110.

<Embodiment 11>
FIG. 35 is a perspective view schematically showing the pumping system of the present embodiment. Note that FIG. 35 is simplified by omitting the check valve 58 and the like. The pumping system 121 of the present embodiment has substantially the same configuration as the pumping system of the tenth embodiment, but the configuration of the atmospheric pressure changing unit 122 is different. Therefore, the description overlapping with other embodiments will be omitted, and the description of the configuration of the atmospheric pressure changing unit 122 will be mainly described. In the following description, the same members as those of the pump system 1 of the first embodiment will be described by using the same reference numerals.

As shown in FIG. 35, the atmospheric pressure changing unit 122 also includes a pump 123 that changes the atmospheric pressure in the internal space 2a of the first chamber 2 and the internal space 82d of the second chamber 82 using the sun as a heat source. The pump 123 includes, for example, a chamber 124 and a heat collector 125.

The chamber 124 has a rigidity that does not substantially deform even if the atmospheric pressure in the internal space 124a of the chamber 124 changes, and is connected to the switching portion 64 via the first connecting pipe 65. The bottom of the chamber 124 functions as a water storage unit for storing the liquid.

The heat collector 125 includes, for example, a plurality of stainless steel plates. Then, the heat collector 125 is arranged in the internal space 124a of the chamber 124 in a state where the lower end portion of the heat collector 125 is immersed in the liquid at the bottom of the chamber 124. The heat collector 125 may be an aluminum plate, a copper plate, a silver plate, or the like, or may be a plate body plated with silver or copper, and may be made of a material having high thermal conductivity.

In such a pump 123, the internal space 124a of the chamber 124 is warmed by the heat of irradiation of the sun, and the heat collector 125 is warmed to promote the vaporization of the liquid, thereby increasing the air pressure in the internal space 124a of the chamber 124. Can be done. As a result, the gas in the internal space 124a of the chamber 124 can be pushed out. At this time, when the state changes from the liquid state to the vapor state, the volume becomes 1000 times or more, so that a pressure far larger than the thermal expansion of the gas can be generated depending on the intensity of sunlight.

On the other hand, when the sun sets and the night falls, the portion of the internal space 124a of the chamber 124, which is filled with steam and has high humidity, is immersed in the liquid of the heat collector 125 having high thermal conductivity and the liquid of the heat collector 125. A temperature difference is generated between the portion not immersed in the mixture, and the heat of vaporization is absorbed to promote dew condensation, so that the pressure in the internal space 124a of the chamber 124 can be lowered. As a result, gas can be sucked into the internal space 124a of the chamber 124. Therefore, the pump 123 can be used in place of the pump 92 of the ninth embodiment.

<Embodiment 12>
FIG. 36 is a perspective view schematically showing the pumping system of the present embodiment. Note that FIG. 36 is simplified by omitting the check valve 58 and the like. The pumping system 131 of the present embodiment has substantially the same configuration as the pumping system of the tenth embodiment, but the configuration of the atmospheric pressure changing unit 132 is different. Therefore, the description overlapping with other embodiments will be omitted, and the description of the configuration of the atmospheric pressure changing unit 132 will be mainly described. In the following description, the same members as those of the pump system 1 of the first embodiment will be described by using the same reference numerals.

As shown in FIG. 36, the air pressure changing unit 132 changes the air pressure in the internal space 2a of the first chamber 2 and the internal space 82d of the second chamber 82 by using steam or fine water droplets (that is, fog). It is equipped with a pump 133. The pump 133 includes, for example, a chamber 134, a volume change section 135, and a dew condensation propulsion section 136, as shown in FIG. 36.

The chamber 134 has a rigidity that does not substantially deform even if the atmospheric pressure in the internal space 134a of the chamber 134 changes, and is connected to the switching portion 64 via the first connecting pipe 65. The volume changing portion 135 is arranged in the internal space 134a of the chamber 134, and for example, the liquid in the liquid tank 135a is heated by the heat source 135b to generate steam. However, the volume changing unit 135 may generate mist by vibrating the liquid, and the means for expanding the volume of the liquid is not limited. Further, the structure of the heat source 135b is not limited as long as the liquid can be vaporized.

The dew condensation promotion unit 136 is arranged in the internal space 134a of the chamber 134 to promote dew condensation. The dew condensation propulsion unit 136 includes, for example, a plurality of stainless steel plates. The lower end of such a dew condensation propulsion portion 136 is immersed in the liquid stored in the bottom portion of the chamber 134. The dew condensation propulsion unit 136 may be able to turn the vapor or mist in the internal space 134a of the chamber 134 into a liquid by dew condensation, and the material, shape, arrangement, etc. of the dew condensation propulsion unit 136 are not limited.

In such a pump 133, when steam is generated by the volume changing portion 135 and the air pressure in the internal space 134a of the chamber 134 is raised, the gas in the internal space 134a of the chamber 134 is pushed out. On the other hand, when the generation of steam by the volume changing portion 135 is stopped and the air pressure in the internal space 134a of the chamber 134 is lowered, the gas is sucked into the internal space 134a of the chamber 134. Therefore, the pump 103 can be used in place of the pump 92 of the ninth embodiment.

<Embodiment 13>
The features of the pump system according to the present embodiment will be described first.
First, the present embodiment is characterized by the shape of the pressure bag and its functional structure. In the pumping pump system according to the first to twelfth embodiments, the shape of the pressurized bag changes due to the change in air pressure in the enclosed space, so that the water in the pressurized bag moves, that is, a flow is generated. The flow was able to pump water while significantly reducing the water pressure loss due to gravity (that is, the idling loss as a pump function). According to the pressurizing bag according to the present embodiment, a logical design that creates a flow that further enhances the pumping power is proposed, and the system efficiency can be synergistically enhanced.

Second, the present embodiment is characterized by a check valve. As mentioned above, check valves are an essential element in pumping systems that function by controlling the flow of air and liquids. Here, in a pump system that does not use electrical power, a check valve such as a duck bill valve, which has a relatively low resistance and pressure loss in performing an opening / closing operation, is desired. Although the duck bill valve is a check valve with a low pressure loss, it still causes a pressure loss like a bottleneck in the opening / closing operation, and the pressure loss increases as the number increases. Therefore, in the present embodiment, we propose a system in which the pressure increasing effect can be obtained by devising the shell shape and the piping structure for accommodating the valve.

Thirdly, it has a feature in the structure for realizing the chain. In the above-described embodiment, a step of collecting water while pumping it into a pipe-shaped pump and a step of discharging it are executed. In this embodiment, a structure that realizes a chain by one air pressure generator (air pump) is proposed.

FIG. 37 is a front view (a) of the pressurizing bag used in the pump system according to the present embodiment, a side view (b) of the pressurizing bag in a contracted state, and a side view of the pressurizing bag in an expanded state. FIG. 3C.
The pressure bag 3 is a deformable resin bag (for example, a vinyl bag). The pressurizing bag 3 houses a liquid such as water inside. The pressurizing bag 3 can be connected and used instead of the pressurizing bag 3 shown in each of the above-described embodiments. As shown in FIG. 37A, the pressurizing bag 3 has a substantially circular shape on the upper side, which is wide and close to a circle, and has a shape that tapers downward when viewed from the front. More specifically, as shown in FIG. 38, the pressurizing bag 3 has a shape in which the pressure bags 3 are smoothly connected along the arcs of a part of each of the four perfect circles C. As shown in FIG. 39, this shape can also be said to be a shape in which the shape of the water droplet is opposite to the direction of gravity (hereinafter, also referred to as a reverse water droplet shape).

As shown in FIG. 37 (a), when viewed from the front, the pressurizing bag 3 has a reverse water droplet shape, that is, a reverse water droplet on the outermost peripheral edge portion of the pressurizing bag 3 in order to maintain the front shape. It has a built-in frame 3d with a shape. When the pressure bag 3 is composed of two sheets, the frame 3d is arranged along the inside of the joint portion of the sheets. The frame 3d is an integrated ring-shaped member, which may be solid or hollow. The frame 3d is made of, for example, a resin material that is harder than the sheet portion and has a high elastic force. However, the material of the frame 3d is not limited to resin, and may be another material such as metal.

The discharge path 6 and the suction path 7 are connected to the pressurizing bag 3. One end of each of the discharge path 6 and the suction path 7 is passed from the outside to the inside of the pressurizing bag 3. The discharge passage 6 and the suction passage 7 are arranged so that one end projects from the opposite surface of the pressurizing bag 3 when viewed from the front. The other ends of the discharge path 6 and the suction path 7 inside the external pressure bag 3 are connected to both ends of the tubular member 167. That is, the discharge passage 6 and the suction passage 7 are connected by a tubular member 167. The tubular member 167 is a hollow tube with a large number of holes. Therefore, the liquid sucked into the suction passage 7 flows inside the tubular member 167 and flows out into the pressurizing bag 3 from its many holes. Further, the liquid in the pressurizing bag 3 flows into the tubular member 167 through a large number of holes, and then flows out from the tubular member 167 into the discharge path 6. Here, the tubular member 167 is made of, for example, a flexible resin material. Although the discharge passage 6, the suction passage 7, and the tubular member 167 are made of separate members, they may be integrally made of the same member.

Since the pressurizing bag 3 is urged from the inside by the frame 3d in the direction outside the plane as shown in FIG. 37 (a), when the liquid flows in from the suction path 7, the pressurizing bag 3 is shown in FIG. 37 (c). As shown, it extends primarily in the anterior-posterior direction. In particular, the pressurizing bag 3 has a large amount of expansion in the front-rear direction in a wide portion slightly above the central portion, and a relatively small amount of expansion in the front-rear direction in the tapered portion on the lower side. Along with this, the pressure bag 3 has a larger change in the accommodating amount in the wide portion than in the lower tapered portion.

Subsequently, the expansion and contraction operations of the pressurizing bag 3 will be described.
First, a case where the pressurizing bag 3 changes from a contracted state to an expanded state by depressurizing the internal space of the chamber 2 will be described with reference to FIGS. 40 and 41. The arrows shown in the figure indicate the static pressurization vector.
When the internal space of the chamber 2 is depressurized, as shown in FIG. 40, an expansion pressure is instantaneously generated uniformly on the entire surface of the pressurizing bag 3, and a force for expanding the pressurizing bag 3. Works.

Further, when the depressurized state continues, the atmospheric pressure generated by the decompression is easy to work in the pressurizing bag 3, and the force is synergistically applied to the surface where there is a large room for displacement. In this example, more barometric pressure acts on the wide portion above the central portion of the pressurizing bag 3 to cause displacement. Therefore, as shown in FIG. 41, the liquid sucked from the suction passage 7 through the check valve 11 flows upward along the inside of the tubular member 167 and the outside in the vicinity, and together with the pressurizing back. In the upper part of No. 3, it flows in the left-right direction to generate a swirl flow. Further, as the pressure bag 3 expands, the liquid is sucked up from the suction path 7 while increasing the swirl flow.

Next, a case where the pressurizing bag 3 changes from an expanded state to a contracted state by pressurizing the internal space of the chamber 2 will be described with reference to FIGS. 42 and 43. The arrows shown in the figure indicate the static pressurization vector.
When the internal space of the chamber 2 is pressurized, as shown in FIG. 42, a compressive pressure is instantaneously generated uniformly on the entire surface of the pressurizing bag 3 to contract the pressurizing bag 3. Power works.

Further, when the pressurized state continues, the atmospheric pressure generated by the pressurization is easy to work in the pressurizing bag 3, and the force is synergistically applied to the surface where there is a large room for displacement. In this example, more barometric pressure acts on the wide portion above the central portion of the pressurizing bag 3 to cause displacement. Therefore, as shown in FIG. 43, the liquid flows upward along the inside of the tubular member 167 and the outside in the vicinity of the tubular member 167 while reducing the swirl flow generated in the left-right direction of the upper portion of the pressure bag 3. It is discharged from the road 6 through the check valve 9.

As described above, in the pressurizing bag 3 according to the present embodiment, a spiral flow can be smoothly formed by the change in atmospheric pressure, thereby accelerating the fluid composed of ultrafine particles such as water and synergistically improving the pumping efficiency. Can be enhanced to.

This point will be described in more detail with reference to figures.
FIGS. 44 (a) and 44 (b) show a fluid rotation vector at the time of suction and a fluid rotation vector at the time of discharge, respectively. Generally, when an object makes a circular motion, the rotation speed changes by a square of a factor according to the amount of displacement of the center of gravity due to the movement of the center of gravity in the direction of the radius of gyration from the center of rotation of the rotating body. More specifically, when the center of gravity moves toward the center of rotation, the rotation speed increases, and when the center of gravity moves toward the outside of the radius of gyration, the rotation speed decreases. This is the same principle that the rotation speed is increased by moving the hand from the state where the ice skating player spreads his hand to the chest. As described above, the fact that the rotation speed increases by a factor of 2 as the center of gravity moves toward the center of rotation means that the kinetic energy at the particle level of water or air is also amplified by a factor of 2. Further, the fact that the rotation speed is attenuated to 1 / square by moving the center of gravity to the outside of the radius of gyration means that the kinetic energy is also attenuated to 1 / square.

Here, if the mass of the rotating body does not increase, energy amplification is not possible due to the law of conservation of energy. Therefore, unless there is a difference in the volume of the rotating body or the fluid or the mass of the center of gravity, the energy itself is not amplified and the pressure is not increased as a whole. However, in the pump system using the pressurized bag in the present embodiment, the volume and weight of the liquid increase or decrease as the liquid flows in or out, and the radius of gyration narrows when sucking up. It is deformed and the center of gravity is displaced toward the center, and at the time of discharge, it is deformed in the direction in which the radius of gyration expands and the center of gravity is displaced in the direction outside the radius of gyration. Therefore, it can be said that it is a system function that makes sense from the viewpoint of physical calculation.

Subsequently, the overall configuration of the pump system according to the present embodiment will be described. FIG. 45 is a perspective view schematically showing a pumping pump system according to the present embodiment.
As shown in the figure, the pump system includes two

chambers

2, 52. Chamber 2 houses five pressurizing bags 42. The chamber 52 houses five pressurizing bags 53. Each of the pressurizing

bags

42 and 53 has the same configuration as the pressurizing bag 3 described above. The

chambers

2 and 52 are provided with

internal spaces

2a and 52a in which gas is housed, respectively, and have rigidity that does not substantially deform even if the atmospheric pressure of the

internal spaces

2 and 52a changes.

The suction passage 7 of the lowermost pressurizing bag 42 provided in the chamber 2 is provided with a check valve 58 and a communication passage 57, and one end of the suction passage 7 is arranged at a position where the liquid in the liquid tank 10 can be sucked up. Has been done. The discharge path 6 of the pressurizing bag 42 is connected to one end of the communication passage 57. The communication passage 57 is arranged so as to be substantially horizontal. The other end of the communication passage 57 is provided in the vicinity of the chamber 52 and is connected to a check valve 58 flowing downward. The check valve 58 according to this example, which will be described in detail later, allows the flow of liquid in the downward direction (that is, in the vertical downward direction) and blocks the flow of liquid in the upward direction.

The check valve 58 at the bottom of the chamber 52 is connected to the discharge path 6 of the pressurizing bag 42 at the bottom of the chamber 52. The suction passage 7 extends downward from the check valve 58 and is connected to the lower portion of the pressurizing bag 53.
One end of the discharge path 6 of the lowermost pressurizing bag 53 in the chamber 52 is connected to the communication passage 57. The communication passage 57 is connected to the check valve 58 in the vicinity of the chamber 2 at the other end. The communication passage 57 is arranged so as to be substantially horizontal. The check valve 58 is connected to one end of the suction path 7 of the pressurizing bag 42, which is the second stage from the bottom.

In this way, the lowermost pressurizing bag 42 built in the chamber 2 and the lowermost pressurizing bag 53 built in the chamber 52 are connected, and the lowermost pressurizing bag 53 and the chamber 2 built in the chamber 52 are further connected. The pressurizing bag 42 and the pressurizing bag 53 are alternately connected so that the pressurizing bag 42 of the second stage from the bottom built in is connected, and finally the pressurizing of the uppermost stage of the chamber 52 is performed. It is connected in series to the back 53. The pumped liquid is discharged from the discharge path 6 connected to the uppermost pressurizing bag 53.

In such a pump system, as shown in FIGS. 46 and 47, pressurization and depressurization are alternately performed on the

chambers

2 and 52, respectively. When the pressurizing

bags

42 and 53 are considered to be connected in series, the first, third, fifth, and seventh pressurizing bags 42 are housed in the same chamber 2, so that pressurization or depressurization is performed at the same timing. Will be done. Similarly, since the second, fourth, sixth, and eighth pressurizing bags 53 are housed in the same chamber 2, pressurization or depressurization is performed at the same timing.

In the state shown in FIG. 46, the first, third, fifth, and seventh pressurizing bags 42 are decompressed to expand and suck the liquid discharged from the liquid tank 10 or the pressurizing bag in the previous stage. Further, at this time, the second, fourth, sixth, and eighth pressurizing bags 53 are pressurized and contracted, and the liquid is discharged to the next-stage pressurizing bag, or the liquid is discharged from the final discharge path 6. Discharge to the outside.

Here, the check valve 58 of the communication passage 57 connecting the pressurizing bag 42 and the pressurizing bag 53 arranged on the side in the flow direction of the liquid is closed because the pressurizing bag 53 contracts. The check valve 58 of the communication passage 57 connecting the pressurizing bag 53 and the pressurizing bag 42 arranged on the side in the flow direction of the liquid is opened because the pressurizing bag 42 expands. ..

Similarly, the check valve 58 of the communication passage 57 connecting the pressurizing bag 53 and the pressurizing bag 42 arranged on the side in the flow direction of the liquid is closed because the pressurizing bag 42 contracts. The check valve 58 of the communication passage 57 connecting the pressurizing bag 42 and the pressurizing bag 53 arranged on the side in the flow direction of the liquid is opened because the pressurizing bag 53 expands.

As described above, in the pumping system of the present embodiment, one pressurizing bag can be expanded and the other pressurizing bag can be contracted, so that the pumping efficiency can be synergistically improved. ..

Moreover, in the pump system of the present embodiment, the check valve 58 shuts off each of the pressurizing

bags

42 and 53, and the

respective pressurizing bags

42 and 53 can be operated independently. Therefore, the

pressure bags

42 and 53 arranged at the low position.

Subsequently, the structure of the check valve 58 will be described with reference to FIGS. 48 to 50.
As shown in FIG. 48, the check valve 58 has a pressure boosting check valve function, and is composed of an in-shell vortex generation frame 58a and a duck bill valve 58b.

The vortex generation frame 58a in the shell is made of, for example, a resin material. FIG. 49 shows a partial configuration of the vortex generation frame 58a in the shell. FIG. 49 shows a state facing substantially the opposite side from the state at the time of use. As shown in FIGS. 48 and 49, two

vortex generation portions

581a and 581b having a semi-cylindrical shape convex upward in the used state are provided inside the vortex generation frame 58a in the shell.

The duck bill valve 58b (duck bill type check valve) is fixed above the vortex generation frame 58a in the shell so that the openable tip portion faces downward. The tip of the duck bill valve 58b is located between the two eddy current generating portions 581a and b.

As shown in FIG. 50, when a liquid such as water flows into the check valve 58 from above, the duck bill valve 58b is opened due to the pressure generated by the gravity of the liquid. Then, the liquid further passes through the open duck bill valve 58b and flows downward. At the bottom of the check valve 58, the flow of liquid causes the flow of air, as indicated by the arrows in FIG. In particular, in the vortex generation frame 58a in the shell, air flows downward so as to be drawn by the downward flow of water, and the air outside the air is drawn in, so that a low-pressure space is created. Further downward air collides with the lower surface of the vortex generation frame 58a in the shell, and an upward flow is generated. The air flows upward along the inner surface of the vortex generation frame 58a in the shell, and flows along the lower surfaces of the vortex generation portions 581a and b. At this time, since the lower surfaces of the

vortex generation portions

581a and 581b have a cylindrical shape, the air flow is guided downward along the arc and merges with the air flow generated by the liquid flow. In this way, a swirl of air is generated by the flow of water flowing downward through the duckbill valve 58b. Since the region where the swirl flow of air is generated becomes a relatively low pressure space, it leads to widening the opening degree of the duck building valve 58b. As a result, it contributes to increasing the flow rate, and as a result, the loss of passing through the valve can be suppressed and the pressure increase can be achieved.

The pumping system shown in FIG. 51 includes two sets of pumping

pump systems

100 and 200 described in FIG. 45. The pump system 100 has a chamber 100a containing the first, third, fifth, and seventh pressurizing bags connected in series, and a chamber 100b containing the second, fourth, sixth, and eighth. The pump system 200 has a chamber 200a containing the first, third, fifth, and seventh pressurizing bags connected in series, and a chamber 200b containing the second, fourth, sixth, and eighth.

Pressurization and depressurization are performed by twin blowers 300a and 300b that generate reciprocal atmospheric pressure. That is, the blowers 300a and 300b function as a pressure changing unit. The chamber 100a and the chamber 200b are connected to the blower 300a, and the chamber 100b and the chamber 200a are connected to the blower 300b. When the blower 300a discharges air and pressurizes it, the blower 300b sucks up air and depressurizes it. Further, when the blower 300a is in an operating state of sucking up air and depressurizing it, the blower 300b is in an operating state of discharging air and pressurizing it.

In this way, by interlocking the twin blowers 300a and b that generate the reciprocal air pressure with the pumping pump systems 100a and b, the reciprocal action of suction and discharge can be achieved by simply causing the twin blowers to repeatedly operate. Synchronously, all the operations are synergistically connected to the pumping, and the suction and discharge operations can be realized infinitely driven without interruption.

Note that this disclosure is not limited to the above-described embodiment, and can be appropriately modified without departing from the spirit. Further, the present disclosure may be carried out by appropriately combining the respective embodiments.

For example, the atmospheric pressure changing portion of the above-described embodiment is an example, and the pressurizing bag arranged in the internal space of the chamber can be deformed according to the change of the atmospheric pressure in the internal space of the chamber. Just do it.

For example, the switching unit may switch between the first flow path and the second flow path based on the detected value of the pressure sensor or the like. Further, the pressure bag may have a structure in which at least a part thereof can be deformed in the horizontal direction.

For example, the air pressure adjusting unit of the above-described embodiment is an example, and if the air pressure in the internal space of the chamber can be adjusted, it may be adjusted by using a control device.

Further, the connection form of the pressurizing bag and the discharge path, the suction path or the communication path is not limited to the above, and the pressurization is performed so that the liquid is discharged from the pressurization bag or the pressurization bag can suck the liquid. It suffices if the bag and the discharge passage, the suction passage or the communication passage communicate with each other.

This application claims priority based on the international application number PCT / JP2019 / 0413545 filed on October 21, 2019, and incorporates all of its disclosures herein.

1 Pumping pump system 2 Chamber (1st chamber), 2a Internal space 3 Pressurized back (1st pressurized back), 3a 1st tapered part, 3b 2nd tapered part, 3c tension part, 3d frame 4 Pressure change part 6 Discharge passage, 9 Check valve 7 Suction passage, 11 Check valve 8 Liquid tank 12 Pump 21 Pumping pump system 22 Pressure changing part 23 Expansion back 24 First pump 25 Second pump 41 Pumping Pump system 42 Pressurizing back 43 Relay part 44 First flow path, 46 Check valve 45 Second flow path, 47 Check valve 51 Lifting pump system 52 Second chamber, 52a Internal space 53 Second addition Pressure back 54 Pressure change part 55 First connection pipe 56 Second connection pipe 57 Communication passage 58 Check valve, 58a In-shell vortex generation frame, 58b Duck bill valve 59 First pump 60 Second pump 61 Lifting pump System 62 Pressure change part 63 Pump 64 Switching part 64a Communication passage, 64g Opening part 64b Reaction force part 64c Pushing part, 64h Main body part, 64i Support part, 64j First part, 64k Second part 64d First spring 64e 2nd spring 64f slide part, 64l main body part, 64m 1st protruding part, 64n 2nd protruding part 64o 1st flow path, 64r check valve 64p 2nd flow path, 64s check valve 64q common path 65 First connecting pipe 66 Second connecting pipe 67 Third connecting pipe 71 Switching part 71a First rotor 71b Second rotor 71d Main body 71e Transmission part 71f Supporting part 71c Switching gear 71g Tooth part 71h 1 flow path, 71k check valve 71i 2nd flow path, 71l check valve 71j 2nd communication passage 81 Lifting pump system 82 2nd chamber, 82a 1st through hole, 82b 2nd through hole , 82c 3rd through hole, 82d Internal space 83 2nd pressurizing back 91 Pressure change part 92 Pump 93 Cover part, 93a Opening 100 Pumping pump system 101 Pumping pump system 102 Pressure changing part 103 Pump 104 Chamber, 104a Internal space 105 Heat collector 106 Pressure regulator 107 Chamber, 107a Internal space 108 Discharge passage, 112 Check valve 109 Liquid tank 110 Supply passage, 113 Check valve 111 Connection pipe 121 Pumping pump system 122 Pressure change unit 123 Pump 124 Chamber, 124a Internal space 125 Heat collector 131 Pump system 132 Pressure change part 133 Pump 134 Chamber, 134a Internal space 135 Volume change part, 135a Liquid tank, 135b Heat source 136 Condensation propulsion part 167 Tubular member 200 Pump pump system 300 Blower

Claims

A first chamber in which the internal space forms at least a part of the airtight space and the gas is housed in the internal space.
A first pressurizing bag that is arranged in the internal space of the first chamber and deforms with a change in air pressure in the internal space of the first chamber to suck or discharge a liquid.
An atmospheric pressure changing part that changes the atmospheric pressure in the internal space of the first chamber,
With
When the pressure in the internal space of the first chamber is changed so that the first pressurizing bag sucks the liquid or discharges the liquid from the first pressurizing bag, the deformation of the first pressurizing bag causes the liquid. , A lift pump system that generates lift in the liquid inside the first pressurizing bag.
By changing the air pressure in the internal space of the first chamber and horizontally deforming the side wall portion of the first pressurizing bag to move the liquid inside the first pressurizing bag in the horizontal direction. The lift pump system according to claim 1, wherein a flow is generated in the liquid inside the first pressurizing bag to generate lift in the liquid.
By further moving the liquid moved in the horizontal direction in the first pressurizing bag downward to generate a spiral flow, the liquid inside the first pressurizing bag is caused to flow and the liquid is generated. The lift pump system according to claim 2, wherein the lift is generated.
The pumping pump system according to any one of claims 1 to 3, wherein the lower portion of the first pressurizing bag includes a first tapering portion that tapers downward of the first pressurizing bag. ..
The upper portion of the first pressurizing bag includes a second tapered portion that tapers upward of the first pressurizing bag.
The fourth aspect of the present invention, wherein the first pressurizing bag has a diamond shape, sucks a liquid from the lower part of the first pressurizing bag, and discharges the liquid from the upper part of the first pressurizing bag. Pumping pump system.
The pump system according to any one of claims 1 to 5, wherein the first pressurizing bag includes a tension portion for applying tension in the vertical direction of the first pressurizing bag.
The atmospheric pressure change part is
An expansion bag that is placed in the internal space of the first chamber and can be deformed,
A first pump that supplies gas to the expansion bag and sucks gas from the expansion bag,
With
The pumping pump system according to any one of claims 1 to 6, wherein when the expansion bag expands, the expansion bag contacts the side wall portion of the first pressurizing bag.
The pump system according to claim 7, wherein the air pressure changing unit includes a second pump that sucks gas in the internal space of the first chamber when the expansion bag is expanded.
The pumping pump system according to claim 7 or 8, wherein the expansion bag and the side wall portion of the first pressure bag are adhered to each other.
A plurality of the first pressurizing bags arranged in the internal space of the first chamber, and
In the internal space of the first chamber, the liquid discharged from the lower first pressurizing bag adjacent in the vertical direction can be accommodated, and the upper first pressurizing bag adjacent in the vertical direction can be accommodated. A relay unit arranged outside the first chamber so that the liquid can be discharged into the chamber,
A first check valve arranged between the lower first pressurizing bag and the relay portion,
A second check valve arranged between the upper first pressurizing bag and the relay portion,
The pumping pump system according to any one of claims 1 to 6, wherein the pump system comprises.
When the air pressure in the internal space of the first chamber rises, the first check valve is opened to discharge the liquid from the lower first pressurizing bag to the relay portion, and the second check valve is discharged. With the check valve closed, the liquid is discharged from the first pressurizing back on the upper side.
When the air pressure in the internal space of the first chamber drops, the lower first pressurizing bag sucks the liquid and the second check valve is closed while the first check valve is closed. The pump system according to claim 10, wherein the valve is opened and the upper first pressurizing bag sucks the liquid from the relay portion.
A second chamber connected to the first chamber and having an internal space forming at least a part of the airtight space together with the internal space of the first chamber.
A second pressurizing bag arranged in the internal space of the second chamber, connected in series with the first pressurizing bag, and alternately arranged with the first pressurizing bag.
A check valve arranged between the first pressurizing bag and the second pressurizing bag,
With
The atmospheric pressure change part is
As the air pressure in the internal space of the second chamber is lowered, the second pressurizing bag is expanded and the air pressure in the internal space of the first chamber is increased to increase the pressure in the first chamber. Shrink the pressure chamber,
As the air pressure in the internal space of the first chamber is lowered, the first pressurizing bag is expanded and the air pressure in the internal space of the second chamber is increased to increase the pressure in the second chamber. The pump system according to any one of claims 1 to 6, wherein the pressure back is contracted.
The pumping pump system according to claim 12, wherein the lower portion of the second pressurizing bag includes a first tapering portion that tapers downward of the second pressurizing bag.
The upper portion of the second pressurizing bag includes a second tapered portion that tapers upward of the second pressurizing bag.
13. The thirteenth aspect of the present invention, wherein the second pressurizing bag has a diamond shape, sucks liquid from the lower part of the second pressurizing bag, and discharges the liquid from the upper part of the second pressurizing bag. Pumping pump system.
The pump system according to any one of claims 12 to 14, wherein the second pressurizing bag includes a tension portion for applying tension in the vertical direction of the second pressurizing bag.
The pump system according to any one of claims 12 to 15, wherein a part of the first pressurizing bag and the second pressurizing bag is arranged so as to overlap in the vertical direction.
The pump system according to any one of claims 12 to 16, wherein the outlet of the check valve is arranged directly below or diagonally downward.
Each of the second pressurizing bags is provided with the second chamber.
The pump system according to any one of claims 12 to 17, wherein the second chamber is fixed to an outer peripheral portion of the first chamber.
The atmospheric pressure change part is
A first pump that moves the gas in the internal space of the first chamber to the internal space of the second chamber, and
A second pump that moves the gas in the internal space of the second chamber to the internal space of the first chamber, and
The pumping pump system according to any one of claims 12 to 18.
The atmospheric pressure change part is
The first flow path through which the gas in the internal space of the first chamber flows toward the internal space of the second chamber, and
A second flow path through which the gas in the internal space of the second chamber flows toward the internal space of the first chamber, and
The first flow path so that the gas in the internal space of one of the first chamber or the second chamber can be sucked and discharged to the other internal space of the first chamber or the second chamber. Or with the pump connected to the second flow path,
A switching unit that switches between the connection between the first chamber and the second chamber by the first flow path and the connection between the first chamber and the second chamber by the second flow path. When,
The pumping pump system according to any one of claims 12 to 18.
When the discharge pressure of the pump becomes equal to or higher than a preset first threshold value, the switching unit has the first chamber and the second chamber on either side of the first flow path or the second flow path. When the suction pressure of the pump becomes equal to or higher than a preset second threshold value, the first chamber and the first chamber and the other of the first flow path or the second flow path are connected. The pump system according to claim 20, which connects to a second chamber.
The pump includes a third chamber connected to the switching portion, and by receiving sunlight and warming the gas in the internal space of the third chamber, the pressure in the internal space rises, and sunlight The pump system according to claim 20 or 21, wherein the pressure in the internal space is lowered by cooling the gas in the internal space due to the decrease in the amount of the gas.
The pump covers the surface of the sea and includes a cover that allows seawater to enter and exit through an opening.
The covering portion is connected to the switching portion and is connected to the switching portion.
The pump system according to claim 20 or 21, wherein the air pressure in the internal space of the covering portion changes according to a change in the height of the sea surface inside the covering portion.
The pump
A third chamber connected to the switching portion and
A volume change part that is arranged in the internal space of the third chamber and vaporizes or atomizes the liquid.
A dew condensation propulsion unit, which is arranged in the internal space of the third chamber and promotes dew condensation,
With
The pump system according to claim 20 or 21, wherein the gas in the internal space of the third chamber is changed by switching between the operation and the stop of the volume changing portion.
When the air pressure in the internal space of the first chamber becomes higher than the preset third threshold value, the air pressure is lowered to at least the third threshold value, and the air pressure in the internal space of the first chamber is preset. The pumping pump system according to any one of claims 1 to 24, comprising a pressure adjusting unit that raises the air pressure to at least the fourth threshold when the pressure becomes lower than the fourth threshold value.
The atmospheric pressure adjusting unit
A fourth chamber connected to the first chamber and containing a liquid,
A discharge path that is passed from the internal space of the fourth chamber to the outside of the fourth chamber and provided with a third check valve, and
A liquid tank arranged outside the fourth chamber and containing a liquid, and a liquid tank.
A supply path that is passed from the liquid tank to the internal space of the fourth chamber and provided with a fourth check valve, and
With
When the pressure in the internal space of the first chamber becomes higher than the third threshold value, the liquid contained in the fourth chamber is discharged up the discharge path to the liquid tank, and the liquid contained in the fourth chamber is discharged to the liquid tank. When the liquid contained in the chamber is discharged, the gas in the internal space of the first chamber is discharged through the discharge path, and the pressure in the internal space of the first chamber reaches at least the third threshold value. When lowered, the third check valve is closed and the third check valve is blocked.
When the pressure in the internal space of the first chamber becomes lower than the fourth threshold value, the liquid contained in the liquid tank is sucked up the supply path into the internal space of the fourth chamber, and the liquid is sucked into the internal space of the fourth chamber. When the liquid contained in the liquid tank is sucked, the gas outside the fourth chamber is sucked into the internal space of the first chamber through the supply path, and the gas inside the first chamber is sucked. 25. The pumping system according to claim 25, wherein the fourth check valve is closed when the pressure rises to at least the fourth threshold.
A first check valve provided with the first chamber in a suction path for sucking the liquid, allowing the flow of the liquid in the suction direction and blocking the flow of the liquid in the opposite direction.
The first chamber is provided in a discharge path for discharging the liquid, and a second check valve is provided to allow the flow of the liquid in the discharge direction and block the flow of the liquid in the opposite direction. The pumping system according to any one of claims 1 to 9.
The first check valve and the second check valve are respectively.
A valve arranged so that the liquid flows in the vertical direction when in the open state,
A vortex generation frame having a vortex generating portion that holds the valve and guides the flow of air rising from the lower surface downward in the vicinity of the region where the liquid flows is provided around the region where the liquid flows from the valve. The pump system according to claim 27.
The first pressurizing bag has a reverse water droplet shape with a substantially circular shape on the upper side and a tapered shape on the lower side in front view, and the liquid inside during pressurization and decompression of the first pressurizing bag. The pumping system according to any one of claims 1 to 28, which generates a swirling flow according to the above.
The first pressurizing bag connects the suction path for sucking the liquid and the discharge path for discharging the liquid, and has a tubular member having a large number of holes, according to any one of claims 1 to 29. The pump system described.
The pump according to any one of claims 1 to 30, wherein the first pressurizing bag includes a frame for holding the front shape of the first pressurizing bag at the outermost peripheral edge portion. system.
A first chamber in which the interior space forms at least a part of the airtight space and the gas is housed in the interior space.
A first pressurizing bag that is arranged in the internal space of the first chamber and deforms with a change in air pressure in the internal space of the first chamber to suck or discharge a liquid.
A second chamber in which the interior space forms at least a part of the airtight space and the gas is housed in the interior space.
A second pressurizing bag arranged in the internal space of the second chamber, connected in series with the first pressurizing bag, and alternately arranged with the first pressurizing bag.
A third chamber in which the interior space forms at least a part of the airtight space and the gas is housed in the interior space.
A third pressurizing back, which is arranged in the internal space of the third chamber and deforms with a change in the air pressure in the internal space of the third chamber to suck or discharge the liquid.
A fourth chamber in which the interior space forms at least a part of the airtight space and the gas is housed in the interior space.
A fourth pressurizing bag arranged in the internal space of the fourth chamber, connected in series with the third pressurizing bag, and alternately arranged with the third pressurizing bag.
A plurality of check valves arranged between the first pressurizing bag and the second pressurizing bag, and between the third pressurizing bag and the fourth pressurizing bag.
The first chamber, the second chamber, the third chamber, and the fourth chamber are each provided with a pressure changing portion that changes the pressure in the internal space of each of the first chamber, the second chamber, and the fourth chamber.
The atmospheric pressure change part is
As the air pressure in the internal space of the second chamber is lowered, the second pressurizing bag is expanded and the air pressure in the internal space of the first chamber is increased to increase the pressure in the first chamber. Shrink the pressure chamber,
As the air pressure in the internal space of the first chamber is lowered, the first pressurizing bag is expanded and the air pressure in the internal space of the second chamber is increased to increase the pressure in the second chamber. Shrink the pressure chamber,
As the air pressure in the internal space of the third chamber is lowered, the fourth pressurizing bag is expanded and the air pressure in the internal space of the third chamber is increased to increase the pressure in the third chamber. Shrink the pressure chamber,
Along with lowering the air pressure in the internal space of the third chamber, the third pressurizing bag is expanded and the air pressure in the internal space of the fourth chamber is increased to increase the pressure in the fourth chamber. Shrink the pressure chamber,
Pumping pump system.
The atmospheric pressure change part is
A first blower connected to the first chamber and a first connecting tube connected to the fourth chamber,
It has a second chamber and a second blower connected to a second connecting tube connected to the third chamber.
When the pressure is reduced by the first blower, the pressure is reduced by the second blower, and when the pressure is reduced by the first blower, the pressure is reduced by the second blower.
The pump system according to claim 32.