WO2001044666A1 - Dispositif et procede de pompage - Google Patents

Dispositif et procede de pompage Download PDF

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Publication number
WO2001044666A1
WO2001044666A1 PCT/JP2000/008786 JP0008786W WO0144666A1 WO 2001044666 A1 WO2001044666 A1 WO 2001044666A1 JP 0008786 W JP0008786 W JP 0008786W WO 0144666 A1 WO0144666 A1 WO 0144666A1
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WO
WIPO (PCT)
Prior art keywords
water
outlet
decompression chamber
pumping
pipe
Prior art date
Application number
PCT/JP2000/008786
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English (en)
Japanese (ja)
Inventor
Hidemi Ito
Original Assignee
Hidemi Ito
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hidemi Ito filed Critical Hidemi Ito
Publication of WO2001044666A1 publication Critical patent/WO2001044666A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F3/00—Pumps using negative pressure acting directly on the liquid to be pumped

Definitions

  • the present invention relates to a pumping apparatus and a pumping method for pumping water and using it as various water resources such as domestic water and irrigation, and for dropping the pumped water to use as a power source such as power generation.
  • a conventional pumping device there is disclosed a technology relating to a liquid pumping device described in Japanese Patent Application Laid-Open Nos. Hei 1-29206 and Hei 6-179798. I have.
  • These are liquid pumping devices connected to decompression means, and are intended to pump liquids containing solids such as earth and sand to high places together with floating bodies floating on the liquid surface of the liquids.
  • This device includes a vacuum chamber provided above the liquid surface, a vacuum pump for forming the vacuum chamber, a pumping pipe for pumping the liquid into the vacuum chamber, a mechanism for mixing air into the liquid to be pumped, It mainly consists of a discharge pipe for discharging the pumped liquid.
  • This device reduces the apparent specific gravity of the liquid by mixing air into the liquid to be pumped, thereby facilitating pumping.However, it is necessary to always operate a vacuum pump in the pumping operation Therefore, it always needs electricity.
  • a technique relating to a water pumping device disclosed in Japanese Patent Application Laid-Open No. 61-200399 of Japanese Patent Application is also disclosed.
  • This is a device that pumps liquid to a high place using an electric pump and atmospheric pressure acting on the surface of the liquid, and uses the pumped liquid to turn a turbine to generate electricity, use it for dam modification, and use it for irrigation. It is intended to be used and stored.
  • This device has a vacuum filling tank at a high position, a vacuum pump, an air intake valve at the top of the vacuum filling tank, and a low-level liquid introduced into the vacuum filling tank. It mainly consists of an inlet pipe, a discharge port from the vacuum filling tank, and a discharge valve device provided at the discharge port.
  • This device stops the vacuum pump when the pumped liquid accumulates in the tank, opens the drain, and uses it for various purposes.Therefore, it is necessary to always operate the vacuum pump during the pumping operation. There is something.
  • the technology related to the pumping equipment shown in (1) required that a vacuum pump be constantly operated during pumping work.
  • this pumping device relies on human power to secure the required water volume only by pressing the pedal for more than 4 hours a day, and the heavy labor is a heavy burden on the residents.
  • the present invention has been made in view of such problems, and can pump water without relying on human power, and does not need to use electricity continuously, and is an efficient and inexpensive pumping device. And to provide a pumping method. Disclosure of the invention
  • the pumping device of the present invention is provided with a decompression chamber that is in a decompressed state, a riser pipe that is installed so as to be able to pump water from a water source to the decompression chamber, and a riser having a height of about 10 m or less from the water surface, and is installed so that water in the decompression chamber can be discharged.
  • a water discharge pipe is provided, the atmospheric pressure is p0, and the pressure in the decompression chamber is Pl, the vertical height from the water surface to the head of the decompression chamber is H, the specific weight of water is a, the downward force on the outlet (the sum of the pushing force by P1 and the force of the gravity of the water in the outlet pipe)
  • F d be the upward force acting on the outlet (push-up force due to atmospheric pressure acting on the outlet), and let F d> F u, and pi ⁇ p 0-1 rH.
  • the inner volume of the water discharge pipe and the shape of the water discharge port are given, and the water in the water discharge pipe is discharged by gravity and pumped from the riser pipe in conjunction with the water discharge so that the pressure in the pressure reducing chamber is kept in an equilibrium state.
  • the state where water is discharged from the water discharge pipe and water is simultaneously pumped from the water intake is continuously performed.
  • the ratio d / D and the average inclination angle are such that F d> Fu. Was within a predetermined range.
  • the ratio d ZD of the diameter d of the outlet to the diameter D of the outlet pipe is 0.03 to 0.8, more preferably 0.2 to 0.5, and the average inclination angle 0 is 10 ° to 80 °, more preferably 30 ° to 60 °. This specifically determines the relationship between the diameter d of the outlet and the diameter D of the outlet, which is required to maintain a state where the water is discharged from the outlet and at the same time is constantly pumped from the inlet.
  • the throttle shape of the water discharge pipe was selected so that the cross-sectional area changes continuously toward the water outlet. As a result, eddies are not generated at the outlet of the water discharge pipe, and the water is discharged smoothly.
  • the decompression chamber is a sphere, when evacuated, it has the strongest shape against external forces due to atmospheric pressure.
  • a vacuum pump for bringing the decompression chamber into a decompressed state and a means for stopping the vacuum pump can be provided.
  • the vacuum pump can be operated by continuing the evacuation and sucking water into the vacuum pump. It will not break down.
  • an exhaust pipe is provided in the decompression chamber, and a blocking valve is provided in the middle of the exhaust pipe, the vacuum pump is pumped by drawing the vacuum and pumping the water into the decompression chamber. And then pumping without a vacuum pump is possible.
  • the pressure in the decompression chamber connected above the water discharge pipe is evacuated to pump the water into the decompression chamber and the water discharge pipe through the rising pipe installed in the water source, and the atmospheric pressure is set to p0
  • the pressure in the decompression chamber is pi
  • the vertical height from the water surface to the head line of the decompression chamber is H
  • the specific weight of water is a
  • the downward force on the outlet (p1 pushing force and the gravity of water in the outlet pipe)
  • F d be the sum of the forces due to the pressure
  • F u be the upward force acting on the outlet (the push-up force exerted on the outlet by the atmospheric pressure)
  • the pumping method of the present invention stores water in a decompression chamber connected above the water discharge pipe, sets the atmospheric pressure to p0, the pressure in the decompression chamber to pi, and the vertical height from the water surface to the headline of the decompression chamber.
  • H is the specific weight of the water
  • the downward force on the outlet (the sum of the pushing force due to pi and the force due to the gravity of the water in the outlet pipe) is Fd, and the upward force on the outlet (to the outlet).
  • Fu denote the pressure exerted by the working atmospheric pressure
  • the pressure in the decompression chamber is equilibrated by using a water discharge pipe with the relationship of p1 and p0-rH.
  • the water in the discharge pipe was discharged by gravity and pumped from the riser in conjunction with the discharge. As a result, the state where the water is discharged from the water discharge pipe and the water is discharged from the water intake continuously is maintained.
  • the pumping method of the present invention is characterized in that water is injected into a decompression chamber connected above a water discharge pipe, the inlet is closed, the atmospheric pressure is p0, the pressure in the decompression chamber is pi, and a riser installed at the water source
  • the vertical height from the water surface of the decompression chamber to the head line of the decompression chamber is H, the specific gravity of water is a, the downward force applied to the outlet (p1 pushing force and water in the outlet pipe)
  • F d be the sum of the forces due to the gravity of the water
  • F u be the upward force applied to the outlet (push-up force due to the atmospheric pressure acting on the outlet)
  • p 1 ⁇ p Pumping and water discharge are started by opening the water discharge port and water intake port using a water discharge pipe having a shape of 0-rH.
  • the evacuation pipe is closed and the evacuation operation is stopped.
  • the evacuation is stopped by closing the evacuation piping, and then the pumping can be performed without using a vacuum pump.
  • FIG. 1 is a sectional view showing an embodiment of a water pump according to the present invention.
  • FIG. 2 is a diagram illustrating the operation principle of the water pump according to the present invention.
  • FIG. 3 is a diagram illustrating the operating principle of the water pump according to the present invention.
  • FIG. 4 is a view for explaining a mode in which the water pump according to the present invention does not operate.
  • FIG. 5 is a diagram illustrating the operation principle of the water pump according to the present invention.
  • FIG. 6 is a diagram for explaining the operation principle of the water pump according to the present invention.
  • FIG. 7 is a cross-sectional view showing another embodiment of the water pump according to the present invention.
  • FIG. 8 is a cross-sectional view of an apparatus for carrying out an experimental verification of the pumping apparatus according to the present invention.
  • FIG. 9 is a diagram for explaining a result of calculating conditions for enabling pumping and discharging in the pumping apparatus according to the present invention.
  • FIG. 10 is a sectional view showing another embodiment of the water pump according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
  • the pumping device 1 is roughly composed of a decompression chamber 2, a riser pipe 4, a water discharge pipe 5, and a narrowed section 7 at the outlet of the water discharge pipe 5.
  • the groundwater is pumped up by setting the tip of the groundwater.
  • the decompression chamber 2 is a spherical tank into which water can be introduced, and is supported and installed above the ground G (for example, at a position of several meters) with support members 12 and 13 as shown in Fig. 1. ing.
  • An exhaust pipe 11 for evacuation, a stop valve 16 provided in the middle of the exhaust pipe 11, and a support member 12 at the other end of the exhaust pipe 11 are used in the upper part of the decompression chamber 2.
  • a vacuum pump 8 is installed. In addition, the vacuum pump 8 is installed so that it can be easily removed.
  • a riser pipe 4 having one end reaching the groundwater vein and a discharge pipe 5 having a water discharge port 6 at the front end for discharging the pumped water are connected. Therefore, the water in the pressure reducing chamber 2 is configured to be movable to the riser pipe 4 and the discharge pipe 5 connected thereto.
  • the material of the decompression chamber 2 can be used with any material as long as it has sufficient strength so that it does not break or deform at atmospheric pressure in order to decompress the interior to a state close to vacuum.
  • stainless steel is desirable as a material that is strong because it is in contact with the material and that has both strength and cost.
  • the riser pipe 4 is connected to the decompression chamber 2 and has the other end submerged in a groundwater vein (for example, several meters in depth), and is provided with an on-off valve 9 having a water intake 15 therein.
  • the height X from the intake 15 to the upper limit water line (A position) in the decompression chamber 2 is set to 10 m or less (for example, 8 m).
  • the on-off valve 9 is wired so that opening and closing can be controlled by remote control (not shown), and when energized, the on-off valve 9 is closed.
  • remote control not shown
  • an intake valve 15 is provided with an on-off valve 9.
  • the on-off valve 9 is provided so that a reduced pressure state can be created by other methods described later.
  • the water discharge pipe 5 is connected to the decompression chamber 2 and extends downward.
  • the water discharge pipe 5 has a water discharge port 6 with an inner diameter d at the end through a throttle-shaped portion 7.
  • the outlet 6 has a cross-sectional area smaller than that of the outlet pipe 5 having the inner diameter D, and smaller than that of the riser 4.
  • the water outlet 6 is provided with an on-off valve 14 that can be opened and closed remotely.
  • the atmospheric pressure is p0
  • the pressure in the decompression chamber 2 is p1
  • the vertical height from the water intake 15 to the head of the decompression chamber 2 is H
  • the specific weight of water is A
  • the downward pressure on the outlet 6 The force (p 1 plus the force due to the gravity of water in the discharge pipe 5) is F d
  • the upward force on the discharge port 6 (push-up force due to the atmospheric pressure acting on the discharge port 6) is F u
  • the inner volume and the constricted shape of the water discharge pipe 5 satisfy Fd> Fu, and satisfy the relationship of p1 ⁇ p0- ⁇ .
  • the shape of the throttle-shaped portion 7 will be described in detail later in the description of the operation of pumping.
  • the pumping device 1 submerges the riser 4 in the groundwater vein, installs the main unit on the ground, and operates the vacuum pump 8 to reduce the pressure. Evacuate the chamber 2, riser 4 and water discharge pipe 5. Then, the atmospheric pressure, which is almost the same as the ground surface, acts on the surface WS of the groundwater W, which is several meters below the ground, and the groundwater W rises to the decompression chamber 2 in a short time.
  • the height X from the intake port 15 to the maximum water level of the decompression chamber 2 can be about 10 m, taking into account the friction loss of the riser pipe 4, etc.
  • the pumping device 1 sets the pumping height X to a value slightly smaller than this limit value (for example, about 8 m) in order to allow room for the water discharge function.
  • the water is pumped above the X min line, preferably to a position about the height X in FIG. 1, the stop valve 16 is closed, and the vacuum pump 8 is stopped. At this point, the vacuum pump 8 can be removed from the pumping device 1 and used for other purposes, such as operating another pumping device.
  • the on-off valve 14 of the water outlet 6 is opened.
  • the water in the water discharge pipe 5 does not immediately fall, and air enters the water discharge pipe 5 as shown by an arrow E in FIG.
  • the reason is that the pressure p 1 in the decompression chamber 2 is reduced to near vacuum, and the downward force F d for pushing out the water in the discharge pipe 5 to the lower part is reduced by the atmospheric pressure p 0. This is because it is smaller than the force F u that pushes upward.
  • This principle is based on the principle that a PET bottle is completely filled with water, a small hole is opened in the lid, and water does not fall even if it is turned upside down. When this hole is made larger than a certain size, air enters through the hole, It is understood that the water begins to fall in place of the air.
  • the inside diameter of the water discharge port 6 be appropriately smaller than the inside diameter of the water discharge pipe 5. If the water discharge port 6 is too large, a large amount of air will be released at the moment when the on-off valve 14 of the water discharge port 6 is opened. The water is sucked into the water pipe 5 and the water in the water discharge pipe 5 drops at a stretch.
  • equation (1) is described in more detail as follows.
  • the upward force F11 acting on the outlet 6 is simple and is equal to the atmospheric pressure p0 multiplied by the cross-sectional area Sd of the outlet 6. That is,
  • the downward force F d is complicated, and is affected by the shape of the throttle-shaped portion 7 in front of the outlet 6.
  • the mosquito 1 acting on the volume 1 of the water immediately above the outlet 6 is given by
  • the shape of the aperture-shaped portion 7 is an inverted truncated cone shape.
  • the component of the downward force is calculated based on FIG.
  • the force F 21 along the inclined surface J is expressed as follows:
  • the force F22 pushing the slope receives the reaction force N from the slope J and conversely cancels out the forces.
  • the force F 21 along the slope J affects the outlet 6.
  • the force F 21 along the inclined surface J is broken down into a vertical force F 23 and a horizontal force F 24 as in the case of F 2.
  • Sa is the cross-sectional area of the water discharge pipe 5.
  • the water discharge starts from water discharge port 6.
  • water can be pumped.
  • the condition that enables this state is that the inner volume V 0 (particularly V 2) of the water discharge pipe 5 and the shape of the constricted portion 7 are given so as to satisfy both the expressions (13) and (14). .
  • the pumping capacity from the riser 4 is 9 m or more (9.5 m in theory). Water can be easily pumped into the decompression chamber 2.
  • Fig. 9 shows the upper limit of the pressure p1 in the decompression chamber 2 where water can be pumped on the horizontal axis (meaning that pumping cannot be performed if it is larger than this), and the vertical axis shows the inner diameter d of the outlet 6 and the inner diameter of the outlet pipe 5. Taking the ratio d ZD of D, calculating and plotting the upper limit of d ZD at which water can be discharged, and displaying it as a straight line.
  • the pumpable Pi is usually said to be deeper than 5m in the groundwater vein, so the ratio d / D ⁇ 0.5 for such applications Is desirable.
  • the lower limit of the ratio d ZD the smaller the d ZD, the more room there is for the continuous water discharge limit (because the straight line L 1 falls to the left). If D is too small (d is too small), it will be squeezed too much and the amount of water discharged will be small.
  • the limit line L1 tends to move upward and as the inclination angle decreases, the limit line L1 tends to move downward, but the inclination is the same. Also, if the inclination angle 0 is too small, the water discharge power will be greatly reduced, and if it is too large, the length of the throttle will be long. It was found that the angle was more preferably 30 ° to 60 °.
  • the throttle shape 7 of the water discharge pipe 5 is not limited to a straight line as in this embodiment, and a curve having a continuously changing angle has a similar function. If the approximate average inclination angle is considered as, it is possible to apply the examination result of the inclination angle ⁇ ⁇ .
  • the pumping apparatus 1 of the present embodiment can pump and drop water after the vacuum pump 8 is stopped.
  • the results of this study have been confirmed in experiments, and the outline is described below.
  • the configuration of the experimental apparatus is an experimental apparatus 100 as shown in Fig. 8, and this experimental apparatus 100 is composed of a decompression chamber 20, a reservoir, a cylinder 30, a riser 40, a water discharge pipe 50, a water discharge port 60,
  • This device is generally constituted by a throttle-shaped portion 70, and is a device for pumping water W by installing the tips of four risers 40 in a water tank 103.
  • the decompression chamber 20, water tank 30, riser pipe 40, water discharge pipe 50, water discharge port 60, and iris-shaped part 70 are all made of glass so that the inside can be clearly seen.
  • the decompression chamber 200 is a spherical tank into which water can be introduced, and has an internal volume of about 20 liters and a total height of about 2 meters.
  • the riser 40 is installed as shown in Fig. 8.
  • An evacuation pipe 110 is provided above the decompression chamber 20 so that evacuation can be performed, and an obstruction plug 160 is provided at the end of the evacuation pipe 110.
  • a water reservoir 30 at the lower part of the decompression chamber 20 a rising pipe 40 reaching one end to the water tank 103, and a water discharge pipe 50 having a water discharge port 60 at the end to discharge the pumped water W 50. Is connected.
  • the water storage cylinder 30 is located below the decompression chamber 20 and is connected to the decompression chamber 20. If the decompression chamber 20 is compared to a human head, the water storage cylinder 30 has a cylindrical shape corresponding to a body, and has a shoulder.
  • the riser pipe 40 extends downward from the part, and has a shape connected to the water discharge pipe 50 below. Its internal volume is about 14 liters. Therefore, the water in the upper part of the water storage tank 30 is configured to be movable to any of the connected decompression chamber 20, riser pipe 40, and water discharge pipe 50.
  • the inner diameter of the riser 40 is 2.1 cm, and a water intake 150 is provided at the lower part of the riser 40 in the water of the water tank 103. Is plugged into the intake 150.
  • the water discharge pipe 50 is connected to the water storage cylinder 30 and extends downward, and has a water discharge port 60 at its end through a throttle-shaped portion 70, and an inner diameter of the water discharge pipe 50 is about 3 cm. And the length is about 15 cm. Further, the throttle shape portion 70 is configured such that the cross-sectional area of the water discharge pipe 50 smoothly changes toward the water discharge port 60.
  • the shape of the throttle shape portion 70 is designed and studied so as to be able to stably maintain a state of pumping water from the water intake port 15 to the water storage cylinder 3 and discharging water from the water discharge port 6. (Molded glass tube).
  • the water tank 103 is filled with water as shown in Fig. 8. Has been done.
  • This state corresponds to a state in which water is raised to a predetermined height X, the stop valve 16 is closed, and the vacuum pump 8 is stopped, as described in the embodiment. At this point, the pressure in the decompression chamber 20 is not reduced, but since the pressure in the decompression chamber 20 is full, a decompression state is instantaneously formed in a state where water is discharged.
  • One method is to remove the water stopcock 140 first and then the water stopcock 102 (a). The other is to remove the water stopcock 102 first and then stop the water stopcock 140 (B).
  • Bernoulli's theorem can be applied to the flow in an incompressible fluid that constantly flows in a gravitational field, based on the energy immortality theorem.
  • the Berne ⁇ ⁇ ⁇ r theorem is that if the velocity of a flow is v, the pressure is p, and the height from the reference plane is h,
  • V 2 / (2 g) is called the velocity head and indicates the kinetic energy of a unit weight of fluid.
  • pZr is called the pressure head and indicates the pressure energy of a unit weight of fluid.
  • H is called the potential head and indicates the potential energy of a unit weight of fluid.
  • the total energy which is the sum of kinetic energy, pressure energy, and potential energy, is constant.
  • the position of the water head line C (the speed here is V 1 and the height is h1) and the position of the outlet 6 (the velocity here is V2, the height is h2, and the pressure is P0 at atmospheric pressure).
  • the pressure energy at the outlet of the outlet 6 is p OZr
  • the pressure energy at the position C is not only the force of the pressure P 1 acting on the water of the volume V 2 in the outlet pipe 5 from above, but also It is considered that the force F23 / Sd exerted on the cross-sectional area Sd of the outlet 6 by F2 in Eq. (9), which is the total gravity of water of volume V2,
  • the difference between the position of the headline C and the position of the outlet 6 is h.
  • V 2 "[2 g ⁇ ((F 23 / (S d-r) + h)
  • V 2 / "(2 g h) (1 9)
  • the average inclination angle ⁇ of the aperture shape part 70 is about 45 °.
  • This flow rate is said to be about 15 cc Z s, which is said to be able to pump out about 15 cc Zs of water.
  • the pumping apparatus 1 of the present invention has a sufficient capacity even if it falls below the theoretical formula in consideration of
  • water transferred from a remote water source S to a position T near the pumping unit 50 by a pumping pump U is substantially the same as the pumping unit 1 described above.
  • a pumping apparatus 50 having the above configuration is used.
  • the riser pipe 4 is configured to be inclined and pumped up.
  • the pump U has the ability to transfer water to the position T.
  • the evacuation chamber 2 is evacuated by the water pump 50 of this embodiment and pumped into the evacuation chamber 2, when the on-off valve 14 of the outlet 6 is opened, the gravity of the water in the outlet pipe 5 and the outlet of the outlet 5 Water is discharged by the squeezing shape 7 of.
  • the pumping pump U since the pressure of the remote pump U acts on the lower position T of the riser 4 and flows smoothly by the inclined riser 4, pumping from the riser 4 is easily performed.
  • the pumping pump U is used for the water transferred from the remote water source S to the position T near the pumping device 50 by the pumping pump U by using the pumping device 50. Even with low capacity, water can be pumped to high places, low-cost equipment can supply inexpensive water, and it can be widely used for domestic water and irrigation water.
  • the decompression chamber 2 is evacuated by a vacuum pump or the like to form a decompression state.
  • water is directly supplied to the decompression chamber.
  • it is also possible to start pumping and discharging water by injecting water (closing the water intake) and opening the water discharge port and water intake when the water is full. .
  • the intake and outlet valves can be operated by batteries, and It is possible to use a simple on-off valve).
  • water has been described as an example.
  • the invention is not limited to fresh water, but can be applied to seawater and other liquids, and is a technology that can be used in various fields.
  • a water level sensor (not shown) may be provided in the decompression chamber 2, and the vacuum pump 8 may be automatically stopped in response to the signal.
  • the stopping means of the vacuum pump 8 may grasp the time required to reach the required water level, and stop the vacuum pump 8 by time management such as a timer until the required time is reached.
  • the decompression chamber 2 is spherical in the embodiment, the decompression chamber 2 is not limited to a spherical shape because it functions as a rectangular parallelepiped as long as it has pressure resistance.
  • the upper part may be spherical and the lower part may be provided with a cylindrical water reservoir 3.
  • the connecting portion between the riser pipe 4 and the water discharge pipe 5 becomes flat, so that there is an advantage that the riser pipe 4 and the water discharge pipe 5 can be easily connected and the device can be easily manufactured.
  • the water pump is used under the water discharge pipe of the present invention to turn a water turbine and connect a generator, it is easily considered that inexpensive power can be obtained. If the pumping devices of the present invention are connected in multiple stages, the water discharge position can be raised, and more effective power generation becomes possible.
  • the pumping device of the present invention for the propulsion power, braking force and steering force of a ship.
  • propulsion can be exerted, and it can be used as a supplement to existing power.
  • a riser pipe and a water discharge pipe are provided, braking force can be obtained.
  • the pumping device of the present invention is used on the left and right sides of the ship, and two pumping devices are provided with the riser pipe and the water discharge pipe reversed, left and right turning becomes possible.
  • the pump is stopped at the stage of pumping water into the decompression chamber, and the decompression chamber is closed. This makes it possible to provide a highly efficient and inexpensive pumping device without the need for continuous use of electricity.
  • this pumping device if a water wheel is turned using this pumping device, a power generator can be easily established, and an effect that inexpensive power can be obtained can be obtained. Also, if this pumping device is connected in multiple stages, water can be pumped to high places, and it can be used for highland living water and irrigation.
  • the pumping device of the present invention can be used for propulsion power, braking force and steering force of a ship.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un dispositif et un procédé de pompage. Le dispositif de pompage comporte une chambre basse pression (2, 20), une colonne montante (4, 40) installée, de sorte que de l'eau puisse être pompée dans une source d'eau et envoyée à la chambre basse pression (2, 20), et un tuyau de décharge (5, 50) installé, de sorte qu'il décharge l'eau dans la chambre basse pression (2, 20). Ledit dispositif se caractérise en ce que le volume intérieur et la forme d'étranglement du tuyau de décharge correspondent à Fd>Fu et p1<p0 -ΩH, la pression atmosphérique étant représentée par p0, la pression de la chambre basse pression par p1, la hauteur verticale entre la surface de l'eau et le tuyau d'amenée de la chambre de pression par H, le poids spécifique de l'eau par Ω, la force descendante appliquée sur la sortie par Fd et la force ascendante appliquée sur la sortie par Fu. Le dispositif et le procédé de pompage permettent de maintenir des conditions continues dans lesquelles de l'eau est pompée dans la source d'eau, est envoyée dans la chambre basse pression (2, 20) par la colonne montante (4, 40) et est déchargée du tuyau de décharge (5, 50), même après l'arrêt de la pompe à vide (8).
PCT/JP2000/008786 1999-12-14 2000-12-13 Dispositif et procede de pompage WO2001044666A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP37667399 1999-12-14
JP11/376673 1999-12-14

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WO2001044666A1 true WO2001044666A1 (fr) 2001-06-21

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3113673A1 (de) * 1981-04-04 1982-10-28 Allweiler Ag, 7760 Radolfzell Vorrichtung zum absaugen von fluessigkeiten
GB2118251A (en) * 1982-04-01 1983-10-26 George Thomas Richard Campbell Pressure differential liquid transfer system
WO1998005869A1 (fr) * 1996-08-01 1998-02-12 Mitsuo Kootaka Dispositif de pompage a vide

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3113673A1 (de) * 1981-04-04 1982-10-28 Allweiler Ag, 7760 Radolfzell Vorrichtung zum absaugen von fluessigkeiten
GB2118251A (en) * 1982-04-01 1983-10-26 George Thomas Richard Campbell Pressure differential liquid transfer system
WO1998005869A1 (fr) * 1996-08-01 1998-02-12 Mitsuo Kootaka Dispositif de pompage a vide

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