Device and method for converting liquid buoyancy into mechanical energy

Abstract

The invention discloses a device and method for converting liquid buoyancy into mechanical energy, and belongs to the technical field of energy conversion. The device comprises a buoyancy rotor, a shell, a circulating pump and a transmission mechanism. The buoyancy rotor is a cylinder with a shaft in the center and is soaked in the liquid in the shell; liquid is driven by a circulating pump to circularly flow up and down around the buoyancy rotor, a high-speed low-pressure area is formed on one side of a water pumping port by utilizing the Bernoulli effect, a low-speed high-pressure area is formed on one side of a water discharging port, the upper surface and the lower surface of the buoyancy rotor generate pressure difference to rotate, and mechanical energy is output through a transmission mechanism. The invention provides a new way for converting liquid buoyancy into mechanical energy, can be used for driving external equipment, but needs to pay attention to theoretical verification and practical application optimization.

Description

Technical Field

[0001] The present invention relates to the technical field of energy conversion devices, and in particular to a device and method for converting liquid buoyancy into mechanical energy. Background Art

[0002] The law of conservation of energy states that energy neither appears nor disappears; it merely transforms from one form to another, and the total amount of energy remains constant. Traditionally, negative mass does not exist, and buoyancy is generally considered incapable of counteracting gravity. Therefore, conventionally, anti-gravity devices are difficult to create. However, liquids possess the unique property of generating buoyancy greater than their own weight. This is an inherent, permanent force of nature, inherent to liquids. Buoyancy is present wherever liquids exist, as evidenced by water-based platforms and ships.

[0003] Buoyancy is generated by the pressure difference between the upper and lower surfaces of an object immersed in a liquid, which is equal to the weight of the liquid displaced. However, this unique property has long been underutilized. Scientific progress lies in the continuous discovery, development, and utilization of natural forces. The movement of liquids inevitably affects the movement of floating objects. For example, a ship capsizes because, when encountering high waves, one side of the hull experiences excessive buoyancy at the height of the wave, while the other side, at the bottom of the wave, loses buoyancy. This causes the center of buoyancy of the hull to shift significantly, causing the ship to roll toward the bottom of the wave.

[0004] The relationship between liquid buoyancy and pressure difference is further revealed through experiments:

[0005] Experiment 1: Use a syringe with a blocked needle (Φ4cm, 16cm long) and a vial (Φ3cm, 8cm long). Place the vial into the syringe and add water to a height of 13cm.

[0006] When the vial's density is slightly greater than that of water, gradually lift the syringe piston by hand, starting with a weak force and then increasing it (using suction and negative pressure to increase the pressure differential). The vial will slowly and then quickly rise to the top of the syringe. Stop lifting and the vial will sink to the bottom. Experiments have shown that a greater pressure differential results in greater buoyancy and a faster rise (including under negative pressure).

[0007] When the density is slightly less than that of water, manually pressing the piston from weak to strong (so that the pressure on the upper surface of the vial is greater than the pressure on the lower surface), the vial sinks slowly and then quickly to the bottom of the water. When the pressure is stopped, the vial floats back to the top. Experiments have shown that when the pressure on the upper surface is greater than the pressure on the lower surface under the action of an external force, the buoyancy direction is vertically downward, and the greater the pressure difference, the faster the sinking speed.

[0008] Experiment 2: Based on the Bernoulli effect (when the fluid speed increases, the pressure at the interface between the object and the fluid decreases, and vice versa, the pressure increases. The greater the fluid speed, the lower the pressure, and the lower the speed, the higher the pressure). Use a power of 550W and a flow rate of 3m3 A circulating pump with a flow rate of 40 m / hour, a head of 40 m, a suction lift of 9 m, and a speed of 2850 rpm was used. Four 0.6 MPa pressure gauges were used. Two thick water pipes with an internal diameter of 0.014 m and a length of 1.5 m were connected to two thin water pipes with an internal diameter of 0.006 m and a length of 1.5 m. The thick and thin pipes were connected to form two water pipes, each connected to a pressure gauge. One of the thick pipe ends was connected to the circulation pump's discharge outlet, and one of the thin pipe ends was connected to the circulation pump's intake outlet. The remaining two ends were connected with a tee and filled with tap water pressurized to 0.1 MPa, forming a circle with a diameter of 2 m. After starting the circulation pump, the pressure on the upper side of the drain outlet is 0.18 MPa (actually 0.08 MPa), and the lower side is 0.11 MPa (actually 0.01 MPa), which is 3.5 times the natural pressure; the pressure on the upper side of the suction port is zero (actually negative 0.1 MPa), and the lower side is 0.14 MPa (actually 0.04 MPa), which is 7 times the natural pressure.

[0009] In the existing technology, the property of liquid to generate buoyancy greater than its own gravity and the Bernoulli effect have not been fully utilized to achieve the effective conversion of buoyancy into mechanical energy. Therefore, a new device and method are needed to solve this problem. Summary of the Invention

[0010] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a device and method for converting buoyancy into mechanical energy by utilizing the property of liquid that generates buoyancy greater than its own gravity, combined with the Bernoulli effect, to achieve energy conversion.

[0011] A device for converting liquid buoyancy into mechanical energy, comprising:

[0012] Buoyancy rotor: a cylindrical body with a central axis, used to rotate in liquid under the action of buoyancy;

[0013] The outer shell consists of a cylinder and two plugs. The center of the plug is provided with an axis hole to support the buoyancy rotor shaft. The upper part of the cylinder is provided with the water inlet and the water outlet of the circulation pump. The inner diameter is distributed in a stepped manner. The upper inner diameter of the water inlet is small and the lower inner diameter is large, while the upper inner diameter of the water outlet is large and the lower inner diameter is small, so as to utilize the difference in fluid flow rate to generate pressure difference.

[0014] Circulation pump: connected to the water inlet and outlet of the shell, driven by a pulley. The diameter of the water inlet is smaller than that of the outlet. It is used to drive the liquid to circulate up and down around the buoyancy rotor in the shell;

[0015] Transmission mechanism: includes belts and pulleys, connecting the circulation pump and the buoyancy rotor to transmit mechanical energy.

[0016] Preferably, the liquid in the shell is driven by a circulation pump, and a high-speed fluid area is formed on the side of the water inlet due to the reduction of the inner diameter, generating low pressure according to the Bernoulli effect, and a low-speed fluid area is formed on the side of the water outlet due to the expansion of the inner diameter, generating high pressure, thereby forming a pressure difference between the upper and lower surfaces of the buoyancy rotor, driving the buoyancy rotor to rotate.

[0017] Preferably, the material density of the buoyancy rotor is less than the liquid density. The lower the density, the better under the premise of pressure resistance, so as to maximize the buoyancy response efficiency.

[0018] As a preference, the parameters of the circulating pump are: power ≥ 103 kg, flow ≥ 561 m 3 / hour, lift ≥40m, suction lift ≥9m, speed ≥2850 rpm, to ensure that the liquid circulation flow rate meets the pressure difference conditions required by the Bernoulli effect.

[0019] Preferably, the mechanical energy conversion method comprises the following steps:

[0020] Fill the outer shell with liquid so that the buoyancy rotor is immersed in the liquid;

[0021] Start the circulation pump to drive the liquid to flow upward from the water inlet side of the shell and downward from the water outlet side, forming a circulating flow field around the buoyancy rotor;

[0022] The low-pressure area of ​​the high-speed fluid on the suction side and the high-pressure area of ​​the low-speed fluid on the discharge side are used to generate a pressure difference between the upper and lower surfaces of the buoyancy rotor, driving the buoyancy rotor to rotate. The smaller the mass of the buoyancy rotor, the better.

[0023] The rotational mechanical energy of the buoyancy rotor is output through the transmission mechanism to drive external equipment.

[0024] The beneficial effects of the present invention are:

[0025] Efficient energy conversion: Utilizing the dynamic pressure difference of liquid flow, it breaks through the traditional buoyancy "static balance" limitation and achieves continuous output of mechanical energy;

[0026] Compact structure: The core components adopt lightweight design, combined with Bernoulli effect to optimize the flow channel and improve energy conversion efficiency;

[0027] Wide range of applications: It can be used in fields such as ship propulsion and power generation, providing a new path for the development of clean energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0032] A device for converting liquid buoyancy into mechanical energy, comprising:

[0033] Buoyancy rotor 1: A cylindrical body with a central axis, used to rotate in liquid 4 under the action of buoyancy. The material density should be as low as possible, and the hollow structure should be used to maximize the buoyancy response efficiency.

[0034] Housing 2: Consists of a cylinder and two plugs, with an eye at the center of the plugs supporting the shaft of buoyancy rotor 1. The upper portion of the cylinder houses the pump and drain ports for circulation pump 6. Its inner diameter is stepped, with the pump port having a smaller inner diameter at the top and a larger inner diameter at the bottom, while the drain port has a larger inner diameter at the top and a smaller inner diameter at the bottom, creating a pressure differential by utilizing fluid velocity differences.

[0035] Circulation pump 6: Connected to the water inlet and outlet of the housing 2, it is driven by the pulley 3. The diameter of its water inlet is smaller than that of its outlet. It is used to drive the liquid 4 to circulate up and down around the buoyancy rotor 1 in the housing 2. The parameters of the circulation pump 6 are: power ≥ 130 kg, flow ≥ 561 m 3 / hour, lift ≥ 40m, suction lift ≥ 9m, speed ≥ 2850 rpm, to ensure that the liquid 4 circulation flow rate meets the pressure difference conditions required by the Bernoulli effect.

[0036] Transmission mechanism: includes a belt 5 and a pulley 3, connecting the circulation pump 6 and the buoyancy rotor 1 for transmitting mechanical energy.

[0037] The liquid 4 in the shell 2 is driven by the circulation pump 6. On the side of the water inlet, a high-speed fluid area is formed due to the reduction of the inner diameter, and low pressure is generated according to the Bernoulli effect. On the side of the water outlet, a low-speed fluid area is formed due to the expansion of the inner diameter, and high pressure is generated. Therefore, a pressure difference is formed between the upper and lower surfaces of the buoyancy rotor 1, driving the buoyancy rotor 1 to rotate.

[0038] The mechanical energy conversion method comprises the following steps:

[0039] The housing 2 is filled with liquid 4 so that the buoyancy rotor 1 is immersed in the liquid 4 .

[0040] The circulation pump 6 is started to drive the liquid 4 to flow upward from the water inlet side of the housing 2 and downward from the water outlet side, thereby forming a circulating flow field around the buoyancy rotor 1 .

[0041] The low-pressure area of ​​the high-speed fluid at the water inlet side and the high-pressure area of ​​the low-speed fluid at the water outlet side are used to generate a pressure difference between the upper and lower surfaces of the buoyancy rotor 1, thereby driving the buoyancy rotor 1 to rotate.

[0042] The rotational mechanical energy of the buoyancy rotor 1 is output through the transmission mechanism to drive external equipment.

[0043] It includes the buoyancy work stage, the intelligent reset stage and the energy output stage to achieve efficient and continuous conversion of mechanical energy.

[0044] Example:

[0045] The buoyancy rotor 1 is a cylinder with a central shaft, 2m in diameter and 3m in length, and is made of a light-weight hollow material.

[0046] The outer shell 2 consists of a cylinder and two plugs. The center of the plug is provided with an axis eye to support the buoyancy rotor shaft. The upper part of the cylinder is provided with a water inlet and a water outlet of the circulation pump. The upper inner diameter of the water inlet side is 2.003m and the lower inner diameter is 2.015m. The upper inner diameter of the water outlet side is 2.015m and the lower inner diameter is 2.003m.

[0047] The selected parameters are power 103 kg and flow rate 561 m 3 / hour, a head of 40m, a suction head of 9m, and a rotation speed of 2850 rpm. The circulating pump 6 is connected to the buoyancy rotor 1 through a pulley 3 and a belt 5.

[0048] Fill the outer shell with liquid and start the circulation pump. The liquid circulates up and down around the buoyancy rotor in the outer shell, forming a high-speed and low-pressure area on the suction side and a low-speed and high-pressure area on the discharge side. A pressure difference is generated between the upper and lower surfaces of the buoyancy rotor, driving the buoyancy rotor to rotate and output mechanical energy through the transmission mechanism.

[0049] After calculation, the energy consumed by the circulation pump is 102.938 kilowatts, and the buoyancy generated by the buoyancy rotor is converted into mechanical energy of 2825.82 kilowatts. It can effectively realize the conversion of liquid buoyancy into mechanical energy, providing a new way for energy conversion.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A device for converting liquid buoyancy into mechanical energy, characterized in that: include: The buoyancy rotor (1) is a cylindrical body with a central axis, used to rotate in the liquid (4) under the action of buoyancy; The outer shell (2) is composed of a cylinder and two plugs. The center of the plug is provided with an axis hole to support the axis of the buoyancy rotor (1); the upper part of the cylinder is provided with a water inlet and a water outlet of the circulation pump (6). The inner diameter thereof is distributed in a stepped manner, wherein the upper inner diameter of the water inlet side is small and the lower inner diameter is large, and the upper inner diameter of the water outlet side is large and the lower inner diameter is small, so as to utilize the difference in fluid flow rate to generate a pressure difference; A circulation pump (6) is connected to the water inlet and the water outlet of the housing (2) and is driven by a pulley (3). The diameter of the water inlet is smaller than that of the water outlet. The circulation pump (6) is used to drive the liquid (4) to circulate up and down around the buoyancy rotor (1) in the housing (2). The transmission mechanism comprises a belt (5) and a pulley (3), which connects the circulation pump (6) and the buoyancy rotor (1) and is used for transmitting mechanical energy.

2. The device for converting liquid buoyancy into mechanical energy according to claim 1, characterized in that: The liquid (4) in the housing (2) is driven by a circulation pump (6). On the side of the water inlet, a high-speed fluid region is formed due to the reduction of the inner diameter, generating low pressure according to the Bernoulli effect. On the side of the water outlet, a low-speed fluid region is formed due to the expansion of the inner diameter, generating high pressure. Thus, a pressure difference is formed between the upper and lower surfaces of the buoyancy rotor (1), driving the buoyancy rotor (1) to rotate.

3. The device for converting liquid buoyancy into mechanical energy according to claim 1, characterized in that: The material density of the buoyancy rotor (1) is as low as possible to maximize buoyancy and improve efficiency.

4. The device for converting liquid buoyancy into mechanical energy according to claim 1, characterized in that: The mechanical energy conversion method comprises the following steps: Filling the housing (2) with liquid (4) so ​​that the buoyancy rotor (1) is immersed in the liquid (4); Starting the circulation pump (6) to drive the liquid (4) to flow upward from the water inlet side of the housing (2) and downward from the water outlet side, thereby forming a circulation flow field around the buoyancy rotor (1); By utilizing the low-pressure area of ​​the high-speed fluid on the water inlet side and the high-pressure area of ​​the low-speed fluid on the water outlet side, a pressure difference is generated between the upper and lower surfaces of the buoyancy rotor (1), thereby driving the buoyancy rotor (1) to rotate; The rotational mechanical energy of the buoyancy rotor (1) is output through a transmission mechanism and used to drive external equipment.

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