Full built-in fluid circulation system

Abstract

The invention discloses a full built-in fluid circulation system which is mainly composed of a pressure chamber, a one-way valve or a controllable built-in valve or a controllable pumping pressure device or a controllable propelling device, a backflow guide pipe and the like. A one-way valve or a controllable built-in valve or a controllable pumping pressure device or a controllable propelling device, a backflow guide pipe, a load and the like are all arranged in the pressure cabin. The backflow guide pipe is a long and thin flow pipe, and the inlet end located below the pressure cabin is usually connected with the one-way valve or not connected with the one-way valve. A one-way valve or a controllable built-in valve or a controllable pumping pressure device or a controllable propelling device or a similar device arranged in the pressure cabin can be independently connected with the backflow guide pipe and can also be combined to be connected with the backflow guide pipe; and the fluid enters the backflow guide pipe from the inlet of the backflow guide pipe to start a circulation process, returns into the pressure cabin from the outlet of the backflow guide pipe, and enters the backflow guide pipe again under pressure to finish circulation.

Description

Technical Field

[0001] This invention relates to the field of fluid circulation technology, and more particularly to a fully integrated circulation system for gaseous fluids or gas-liquid fluids. A gaseous fluid circulation system refers to a pressure chamber containing only gaseous fluid, which can be either a single-molecule gas or a multi-molecule gas. A gas-liquid fluid circulation system, on the other hand, contains both gaseous and liquid fluids within the pressure chamber, each retaining its original physical properties. Therefore, gas-liquid fluids should not be understood as mixed fluids. Background Technology

[0002] Gaseous fluids possess astonishing properties: they have no natural interface and are the substances known in nature to have the highest fluidity, compressibility, and expansibility.

[0003] Liquid fluids also possess astonishing properties: although extremely soft, they are incompressible and are the only substances in nature with only one natural interface. Moreover, this natural interface is naturally horizontal.

[0004] Under natural conditions, gaseous fluids flow towards lower pressure, while liquid fluids are subject to gravity. Current fluid recycling technologies typically involve discharging the fluid back to its normal operating environment before reuse. If the fluid is pressurized, it is essentially simply discharged, resulting in significant waste. Even in automotive turbochargers, only a small portion of the pressurized gas can be recycled.

[0005] The hope is to utilize the properties of these substances to develop suitable fluid circulation systems to serve humanity. Summary of the Invention

[0006] This invention provides a fluid circulation system to address the problem in existing technologies where fluid circulation typically involves first discharging the fluid to a normal environment before reuse. If the fluid is pressurized, it is essentially simply discharged, resulting in significant waste. Even in automotive turbochargers, only a small portion of the pressurized gas can be recycled. The fluid circulation system provided by this invention is applicable to both gaseous and gas-liquid fluid circulation systems. Although the principles of gaseous and gas-liquid fluid circulation systems are essentially the same, for ease of understanding, a gas-liquid fluid circulation system will be used as an example in the description.

[0007] The fluid circulation system provided by this invention is a self-powered system, meaning that the power for fluid circulation is provided by the system itself after it receives a one-time input pressure (replenishment due to leakage is disregarded). However, the control components of the circulation system, such as the opening and closing of controllable built-in valves, controllable pumps, controllable propulsion devices, or similar devices, may require external force. One-way valves are self-closing elements, therefore, regardless of whether they are installed inside or outside the pressure chamber, they are not considered part of the control components. Fortunately, the external force required for the control components is negligible compared to the power of fluid circulation, and therefore will not be elaborated upon. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0009] Figure 1 This is a structural diagram showing the reflux conduit installed from top to bottom with the outlet facing downwards; Figure 2 This is a structural diagram showing the reflux conduit installed from bottom to top with the outlet facing upwards; Figure 3 This is a structural diagram of a horizontally positioned reflux conduit.

[0010] In the picture: Pressure chamber 1, gaseous pressure fluid 1-1, liquid fluid 1-11, pressure input device 1-2, safety device (pressure relief) 1-3, liquid fluid replenishment port 1-4, fluid outlet 1-5, one-way valve 2, controllable built-in valve 2-1, controllable pump pressure device or controllable propulsion device or similar device 2-2, return conduit 3, load 4, load energy export device 4-1. Detailed Implementation

[0011] The notation "2 / 2-1 / 2-2" in the attached drawings is merely a custom expression of the present invention. It refers to the selection of a check valve, a controllable built-in valve, a controllable pump pressure device, a controllable propulsion device, or a similar device that can be independently or in combination connected to the outlet of the return conduit. It includes three independent components: check valve 2, controllable built-in valve 2-1, and controllable pump pressure device or controllable propulsion device or similar device 2-2, which can be independently connected to the outlet of the return conduit. It also includes four combinations of these independent components that can be connected to the outlet of the return conduit: a combination of check valve and controllable built-in valve 2 / 2-1 (which can be represented as 2+2-1 or check valve plus controllable built-in valve), a combination of check valve and controllable pump pressure device or controllable propulsion device or similar device 2 / 2-2, a combination of controllable built-in valve and controllable pump pressure device or controllable propulsion device or similar device 2-1 / 2-2, and a combination of check valve and controllable built-in valve, controllable pump pressure device, controllable propulsion device or similar device 2 / 2-1 / 2-2.

[0012] Under no circumstances should "2 / 2-1 / 2-2" be mistaken for a single component, nor should it be mistaken for a "unique" combination. Furthermore, it should not be mistaken for a check valve, a controllable built-in valve, a controllable pump pressure device, a controllable propulsion device, or similar devices all need to be installed in the pressure chamber simultaneously. Undoubtedly, these components can be selected independently or in combination.

[0013] Structure and working principle: On the one hand, the present invention provides a fluid circulation system, which mainly consists of a pressure chamber 1, a one-way valve 2 or a controllable built-in valve 2-1 or a controllable pump pressure device or a controllable propulsion device or a similar device 2-2 built into the pressure chamber, and a return conduit 3.

[0014] The check valve, controllable built-in valve, controllable pump pressure device, controllable propulsion device, return conduit, and load are all built-in within the pressure chamber. "Built-in" means installed within the pressure chamber. The check valve, controllable built-in valve, controllable pump pressure device, controllable propulsion device, or similar device built into the pressure chamber can be connected independently to the outlet of the return conduit, or they can be combined and connected to the outlet of the return conduit.

[0015] Of these, only the one-way valve 2 can open and close automatically under the action of fluid. The controllable built-in valve 2-1, the controllable pump pressure device 2-2, the controllable propulsion device, or similar device 2-2 typically only blocks flow (i.e., self-locks) and is difficult or impossible to open automatically. Under the potential energy of a large elevation difference in the liquid fluid, the controllable built-in valve 2-1 might be able to open automatically using the gravity of the liquid fluid, but this would be sufficient to affect the volume of the entire circulation system. As for the controllable pump pressure device, controllable propulsion device, or similar device 2-2, they require external force to open. In other words, the controllable built-in valve 2-1, the controllable pump pressure device, or the controllable propulsion device, or similar device 2-2 typically require a certain amount of external force to open and allow fluid to pass through.

[0016] like Figure 1 As shown, the reflux conduit 3 is a slender hollow flow tube, which can also be called an internal flow tube.

[0017] The inlet height of the reflux conduit 3 or any other device connected to it should always be below the surface height of the liquid fluid, the lower the better, and it may or may not be connected to a check valve; the outlet height (or position) of the reflux conduit or the outlet height (or position) of the check valve 2, the controllable built-in valve 2-1, the controllable pump pressure device, the controllable propulsion device, or similar device 2-2 connected to it should be above the surface of the liquid fluid. In other words, the closer the outlet height of the reflux conduit or the outlet height of the check valve 2, the controllable built-in valve 2-1, the controllable pump pressure device, the controllable propulsion device, or similar device 2-2 connected to it is to the surface of the liquid fluid, the better.

[0018] Liquid fluid 1-11 begins its circulation process from the inlet of the return conduit 3. The fluid flows out from the outlet of the return conduit, or from the outlet of the built-in one-way valve 2, or the controllable built-in valve 2-1, or the outlet of the controllable pump, controllable propulsion device, or similar device 2-2, entering the pressure chamber 1. Then, under the pressure of the gaseous fluid, it re-enters the return conduit from the inlet. This signifies that the liquid fluid has completed one cycle.

[0019] As is common knowledge, the unit density of liquid fluid 1-11 is much greater than that of gaseous fluid 1-1, and it will naturally settle at the lower part of pressure chamber 1. Conversely, the gaseous fluid, with its much lower unit density, will naturally accumulate at the upper part of pressure chamber 1. A natural boundary will form between the gaseous and liquid fluids at the natural interface of the liquid fluid. Once the gaseous fluid receives input pressure and becomes a pressurized fluid, it will immediately and evenly distribute the pressure across the natural interface of the liquid fluid. At this point, the entire confined space within the pressure chamber receives equal pressure everywhere. An equivalent pressure chamber means that the pressure within the pressure chamber is equivalent at all points, regardless of its level or stability.

[0020] As a device for storing and sustaining energy in a fluid circulation system, the equivalent function of pressure chamber 1 is always present and ubiquitous. Gaseous fluid 1-1 accumulates in the upper part of the pressure chamber and cannot flow back into the return duct 3. The space occupied by the gaseous fluid is both an unlimited space for the gaseous fluid and, because the gaseous fluid is compressible, becomes an "elastic space," which is the "power source" of the fluid circulation system. Liquid fluid 1-11 settles in the lower part of the pressure chamber and in the return duct. Although it has a higher density and specific gravity, the liquid fluid in the return duct cannot and will not fall back into the "elastic space" of the pressure chamber unless sufficient conditions are met. It can be said that as long as there is no "leakage" (in fact, "leakage" is merely a technological issue rather than a fundamental one, yet it is an unavoidable problem), this "elastic space" remains essentially constant, the pressure of the gaseous fluid naturally remains essentially constant in a certain sense, and the "power source" also necessarily remains essentially constant. "Constant" here refers to relative perpetuality, not perpetual motion.

[0021] It is known that the liquid fluid 1-11 is incompressible, so its volume will not change. The gaseous pressure fluid 1-1, which serves as the basis for energy retention, is almost permanently located in the upper position within the equivalent pressure chamber. Utilizing the structural force of the pressure chamber and its own expansion characteristics, the liquid fluid is forced to flow towards the outlet of the pressure chamber or the inlet of the return duct, and then returns to the pressure chamber via the outlet of the return duct, one-way valve 2, controllable built-in valve 2-1, controllable pump pressure device, controllable propulsion device, or similar device 2-2, in a continuous cycle.

[0022] The equivalent pressure of gaseous fluid 1-1 in pressure chamber 1 is constant and ubiquitous. Figure 1 As shown, when pressure P is input into pressure chamber 1, the pressure (the arrows in the attached diagram indicate the transmission path of the fluid or pressure) travels from the inlet of return conduit 3 along the return conduit to the outlet. If there is no locking device at the outlet of the return conduit, the gaseous fluid will enter the return conduit from the outlet, while the liquid fluid will not undergo any position or height change, and all points within the pressure chamber remain equivalent.

[0023] P represents the pressure value of pressure chamber 1; P1 represents the pressure measurement point at the inlet of the return duct 3 or the inlet of the one-way valve or other device connected to it; P2 represents the pressure measurement point at the outlet of the return duct or the outlet of the one-way valve, controllable built-in valve, controllable pump pressure device, controllable propulsion device, or similar device connected to it; and P3 represents the pressure measurement point inside the return duct 3. These pressure measurement points are not actual structural features of the fluid circulation system, but are merely easily understood labels.

[0024] A certain amount of gaseous and liquid fluid is added, making both gaseous and liquid fluids pressurized. Due to the self-locking connection between the return conduit 3 and the check valve, controllable built-in valve, controllable pump, controllable propulsion device, or similar device, the liquid fluid will not flow out from the outlet of the return conduit or the outlet of the check valve, controllable built-in valve, controllable pump, controllable propulsion device, or similar device connected to it, and the gaseous fluid cannot enter the return conduit from the outlet.

[0025] When the injection volume of both gas and liquid reaches the set requirement, the pressure inside the pressure chamber is not only equivalent at all points, but also possesses sufficient energy to drive the circulation of the liquid fluid. Ignoring the gravitational factor of the liquid fluid, the pressure "values" at the three measuring points P1, P2, and P3 should be equal to the pressure "value" at "P".

[0026] However, because the one-way valve, controllable built-in valve, controllable pump, controllable propulsion device, or similar device built into the pressure chamber is not activated at this time, the fluid pressure, although having a basically equal pressure value, cannot flow. But once opened, the flow pipes are connected, and the liquid fluid in the return pipe immediately has a pressure value equal to "P" and can flow. The liquid fluid having this equal pressure value means that the liquid fluid can "move" at any time.

[0027] Because the outlet of the return duct is connected to a check valve with a locking function, a controllable built-in valve, a controllable pump pressure device, a controllable propulsion device, or a similar device, the liquid fluid will rapidly reach the outlet along the return duct. Although the pressure at any point in the pressure chamber remains equivalent, P=P1=P2=P3, the liquid fluid has indeed reached the outlet of the return duct, check valve, controllable built-in valve, controllable pump pressure device, controllable propulsion device, or similar device.

[0028] Due to the effects of density and gravity, liquid fluid 1-11 is always below gaseous fluid 1-1. The height of the liquid fluid must always be higher than the inlet of the return duct to ensure that gaseous fluid in pressure chamber 1 cannot enter the return duct under any circumstances, thus maintaining a constant state and constant quantity of gas and liquid fluid. "Constant state" means that the gaseous fluid in pressure chamber 1 always maintains a predetermined constant pressure; while "constant quantity" means that the spatial volume of the gaseous fluid in the pressure chamber always remains constant.

[0029] The upper surface of the liquid fluid 1-11 is a natural self-flowing plane, thus naturally possessing a horizontal interface. The gaseous fluid 1-1 inside pressure chamber 1 will uniformly cover the upper surface of the liquid fluid, thereby passively forming a horizontal interface on the lower surface of the gaseous fluid. The upper surface of the liquid fluid therefore bears the average pressure within pressure chamber 1.

[0030] Liquid fluid 1-11 can usually flow easily from the inlet to the outlet of the return duct. However, because the gaseous fluid 1-1 in the pressure chamber has sufficient pressure, it is quite difficult for the liquid fluid to re-enter the "elastic space" in the pressure chamber through the outlet of the return duct.

[0031] According to Pascal's theorem, the fluid pressure in a closed container will act uniformly on all points. Therefore, the gaseous fluid 1-1 in pressure chamber 1, which has reached the set pressure value, will also act uniformly on all points.

[0032] Common sense tells us that if the pressure at measuring point P3 is equal to or less than the pressures at measuring points P1 and P2, the liquid fluid 1-11 may not be able to flow back into the "elastic space" within pressure chamber 1. Only if the pressure at measuring point P3 is greater than the pressures at measuring points P1 and P2 can it flow back into the "elastic space" within pressure chamber.

[0033] If we personify the gaseous fluid 1-1 and the liquid fluid 1-11, the gaseous fluid would most like to exchange positions with the liquid fluid to enter the return duct, while the liquid fluid would like to break through the barrier of the gaseous fluid to enter the "elastic space" inside the pressure chamber 1.

[0034] Liquid fluid 1-11 has another inherent advantage: the density of the flexible liquid fluid, which is adaptable to changes in conditions, is much greater than that of gaseous fluid 1-1. The density difference between the two at the same volume is hundreds of times, which is too great. If the "wall adhesion" effect and interfacial "tension" effect that liquid fluid may have can be eliminated, gaseous fluid simply cannot prevent liquid fluid from falling due to the influence of gravitational acceleration.

[0035] The space originally occupied by gaseous fluid 1-1 will be compressed due to the continuous inflow of liquid fluid 1-11 into the "elastic space" of pressure chamber 1. The pressure value P in the pressure chamber will inevitably increase, which can only force the liquid fluid to continue to enter the "elastic space" in pressure chamber 1 from the inlet of the return pipe, so that the volume space of gaseous fluid in the pressure chamber remains constant, the pressure remains constant, and the total pressure is restored to equilibrium.

[0036] However, while the gaseous fluid cannot penetrate the barrier of the liquid fluid downwards, it may penetrate the outlet of the return duct 3 upwards, thus causing a "position exchange". This is because, according to Bernoulli's principle, once the liquid fluid flows out of the outlet of the return duct, or the outlet of the check valve, or the controllable built-in valve, or the controllable pump pressure device, or the controllable propulsion device, or a similar device, its pressure will inevitably decrease because it changes from a static fluid to a dynamic fluid and has a higher flow velocity, making it unable to resist the equivalent pressure of the gaseous fluid 1-1 in the pressure chamber.

[0037] Once a "position exchange" occurs, the gaseous pressurized fluid will partially or completely enter the return conduit, while the liquid fluid will either accumulate in the pressure chamber or remain in the guide pipe in small amounts, unable to circulate. "Position exchange" often occurs at the outlet of the return conduit 3 or at the connection point with the one-way valve 2, the controllable built-in valve 2-1, the controllable pump pressure device, the controllable propulsion device, or a similar device 2-2.

[0038] It can be said that the fluid circulation system must fight against both the ever-present and ubiquitous "equivalent" effects within the pressure chamber and "leakage".

[0039] Although the pressure inside the equivalent pressure chamber may be less than, equal to, or greater than atmospheric pressure, the working pressure inside the pressure chamber of the fluid circulation system should be greater than atmospheric pressure. The equivalent pressure chamber can be spherical, cylindrical, or other suitable shapes.

[0040] like Figure 1 As shown, the one-way valve 2, the controllable built-in valve 2-1, the controllable pump pressure device, the controllable propulsion device, or similar device 2-2 in the pressure chamber 1 can be independently connected to the outlet of the return conduit 3 to form a common flow channel, or they can be combined and connected to the outlet of the return conduit to form a common flow channel. The one-way valve, the controllable built-in valve, the controllable pump pressure device, the controllable propulsion device, or similar device in the pressure chamber usually has a self-locking function to prevent gaseous fluid from entering the return conduit.

[0041] In terms of efficiency, controllable built-in valves, controllable pump pressure devices, controllable propulsion devices, or similar devices should be installed in an equivalent pressure chamber, which can not only achieve higher efficiency but also lower costs.

[0042] like Figure 1-1 As shown, the fluid inlet of the reflux conduit is installed directly inside the pressure chamber, which can reduce the "leakage" of the circulation system.

[0043] Controllable built-in valve 2-1, controllable pump pressure device, controllable propulsion device, or similar device 2-2 should all be classified as control components. Hereinafter, they may be referred to collectively as control components, without affecting the actual function and effectiveness of these devices.

[0044] The inlet of the reflux conduit is usually equipped with a check valve 2 to prevent fluid backflow, but of course, a check valve may not be installed.

[0045] On the other hand, the fluid circulation system provided by the present invention is characterized in that: fluid can only enter the pressure chamber through a return conduit and / or a one-way valve or a controllable built-in valve or a controllable pump pressure device or a controllable propulsion device or similar device built into the pressure chamber, and the flow cross-sectional area of ​​the one-way valve or controllable built-in valve or controllable pump pressure device or controllable propulsion device or similar device built into the pressure chamber is less than or equal to, or greater than, the flow cross-sectional area of ​​the return conduit.

[0046] The return conduit can be connected to one or more loads, and can also be connected to other devices. A Venturi tube or Venturi-like device can also be installed at the connection between the built-in flow passage and the one-way valve, controllable built-in valve, controllable pump pressure device, controllable propulsion device or similar device built into the pressure chamber, which can increase the flow velocity of the fluid in the built-in flow passage and stabilize the flow.

[0047] The fluid circulation system provided by the present invention is further characterized in that: the valve core of the controllable built-in valve can perform various opening and closing movements, including linear movements as shown in Figure 4, where the direction of the movement trajectory of the controllable built-in valve core is parallel or coincident with the direction of the fluid movement trajectory in the built-in flow tube; lateral lateral cutting movements as shown in Figure 4-1, where the direction of the movement trajectory of the valve core is perpendicular to the direction of the fluid movement trajectory in the built-in flow tube; oblique lateral cutting movements as shown in Figure 4-2, where the direction of the movement trajectory of the valve core deflects at a certain angle to the direction of the fluid movement trajectory in the built-in flow tube; and linear or lateral lateral cutting movements as shown in Figure 4-3, where the direction of the movement trajectory of the valve core deflects synchronously with the direction of the fluid movement trajectory in the built-in flow tube.

[0048] Linear motion and lateral shearing motion of the valve core are the most commonly used motion modes of the valve core in controllable built-in valves.

[0049] The valve core of a controllable built-in valve is usually a single piece, but it can also be broken down into several petal-like structures (such as aperture structures, pupil structures, or similar structures), but the number of petals should be at least two or more.

[0050] The movement mode that decomposes the valve core into several petal-like structures belongs to the lateral slicing motion.

[0051] like Figure 1 , Figure 2 , Figure 3 As shown, the one-way valve 2, the controllable built-in valve 2-1, the controllable pump pressure device, the controllable propulsion device, or similar device 2-2 built into the pressure chamber, whether connected independently or in combination with the return conduit, are generally installed in three ways: they can be installed from top to bottom, with the return conduit extending downward from the top or above of the pressure chamber and the outlet usually downward, but it can also be in other directions; they can also be installed from bottom to top, with the return conduit extending upward from the bottom or below of the pressure chamber and the outlet usually upward, but it can also be in other directions; the return conduit can also be installed laterally, with the return conduit extending laterally from the side wall of the pressure chamber and the outlet usually facing the side wall of the pressure chamber, but it can also be in other directions.

[0052] In certain situations, such as when the return duct extends upwards from the bottom or below of the pressure chamber, a throttling orifice can replace a controllable built-in valve, controllable pump pressure device, controllable propulsion device, or similar device. A throttling orifice is a device where the flow cross-sectional area at the outlet of the return duct is typically reduced (though it may not actually be reduced). Utilizing the properties of the throttling orifice and the natural interface between the liquid and gaseous fluids, a spatial separation can be created between the gaseous and liquid fluids, preventing them from exchanging positions. This structure, which also prevents gas and liquid from exchanging positions, can be simply called a throttling orifice. Corresponding to the throttling orifice, a one-way valve can be installed to connect to the return duct, or it can be omitted.

[0053] The height of the throttling orifice is usually slightly above the liquid surface of the liquid fluid, but it can also be slightly submerged below the liquid surface of the liquid fluid.

[0054] In addition to solid materials, the "valve core" of a one-way valve or a controllable built-in valve can also be made of liquid, semi-liquid, or elastic semi-solid materials. The "valve port" is immersed in the liquid or semi-liquid material, and its rise and fall are used to open or close the valve.

[0055] The controllable built-in valve 2-1, the controllable pump pressure device, the controllable propulsion device, or similar device 2-2 is controlled manually, electrically, or in other non-manual ways.

[0056] All devices installed in the pressure chamber that are connected to the return duct and have the ability to block or control the flow of fluid, whether or not they have a valve core, can be considered as controllable built-in valves, controllable pump pressure devices, controllable propulsion devices, or similar devices.

[0057] According to a fluid circulation system provided by the present invention, if the fluid in the pressure chamber is a gas-liquid fluid, the height of the liquid fluid should generally completely submerge the fluid outlet provided on the pressure chamber. However, there are exceptions, such as... Figure 1-1 As shown, the inlet of the reflux conduit is installed directly inside the pressure chamber, meaning that the pressure chamber does not have an outlet below the liquid fluid level. In other words, the pressure chamber may or may not have an outlet below the liquid fluid level.

[0058] Using a controllable built-in valve 2-1 is a good method. However, a drawback of using a controllable built-in valve is that a suitable ratio of the flow cross-sectional area between the controllable built-in valve and the return pipe outlet must be selected. Determining the ratio of the flow cross-sectional areas of the two is relatively difficult.

[0059] Controllable built-in valves, controllable pump pressure devices, controllable propulsion devices, or similar devices 2-2 are all externally powered devices. Their operation involves opening and closing mechanisms to allow fluid to pass through or continuously squeeze or draw out the liquid fluid in the return pipe into the pressure chamber 1. However, their external power supply wires need to pass through the pressure chamber wall, which can easily cause "leakage." This can be avoided by wireless remote control or magnetic control.

[0060] In fluid circulation systems, it is not recommended to use or rely entirely on controlled pump pressure devices, controlled propulsion devices, or similar devices to drive the fluid circulation, including the energy required for the load. In other words, controlled pump pressure devices, controlled propulsion devices, or similar devices are merely one component of the overall fluid circulation system to prevent gaseous pressurized fluid from flowing back into the return duct. Their sole purpose is to help the liquid fluid in the return duct overcome the "equivalent" effect of the pressure chamber environment, allowing the liquid fluid in the return duct to flow smoothly into the pressure chamber.

[0061] Even if the controlled pump pressure device, controlled propulsion device, or similar device itself has sufficient capacity to drive the complete fluid circulation, the power source for the fluid circulation, including the energy required for the load, still depends on the gaseous pressure fluid within the pressure chamber.

[0062] The controlled pump pressure device or controlled propulsion device is installed inside the pressure chamber because the closer it is to the interface or boundary between two different environments, the less energy it consumes. Of course, if necessary, the controlled built-in valve 2-1, the controlled pump pressure device, the controlled propulsion device, or a similar device 2-2 can be installed outside the pressure chamber and connected to the return duct. However, installing the controlled built-in valve, the controlled pump pressure device, the controlled propulsion device, or a similar device outside the pressure chamber will inevitably reduce efficiency and increase energy consumption.

[0063] The fluid circulation system provided by this invention also has the following characteristics: Even if the fluid is subjected to pressure or resistance from both a certain direction and a designated direction, the fluid is only allowed to flow preferentially in the designated direction, and the fluid is not allowed to flow in the opposite direction.

[0064] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0065] For ease of understanding, let's take a gas-liquid fluid circulation system as an example.

[0066] Figure 1 This is one of the structural diagrams provided by the present invention.

[0067] Pressure chamber 1 is a hollow object with a large internal space. Pressure chambers need to withstand high pressure, so they are usually made of strong materials. Pressure chamber 1 can be spherical, cylindrical, or a cube with other dimensions. After all passages are closed, the internal pressure of the pressure chamber is equivalent at any point; hence, it is called an equivalent pressure chamber.

[0068] Pressure chamber 1 is also equipped with pressure input device 1-2, safety device (pressure relief) 1-3, liquid fluid replenishment port 1-4, etc. Pressure chamber 1 can contain different fluids. If it is a gas circulation system, only gaseous fluid 1-1 needs to be installed. If it is a gas-liquid circulation system, both gaseous fluid 1-1 and liquid fluid 1-11 need to be installed.

[0069] The height (or depth) of the liquid fluid 1-11 in pressure chamber 1 is marked with two arrows. The upper arrow points to the surface of the liquid fluid, which can also be understood as the interface or action surface between the liquid fluid and the gaseous fluid 1-1. The lower arrow points to the liquid itself of the liquid fluid 1-11.

[0070] The gaseous fluid 1-1 in the pressure chamber 1 is usually introduced by a pressure input device 1-2, such as an air compressor or a gas tank.

[0071] Taking the gas-liquid fluid circulation system as an example, when the pressure of the gaseous fluid 1-1 in the pressure chamber 1 reaches the set pressure value, the gaseous fluid 1-1 tries to occupy more of the limited space in the pressure chamber 1, which will force the liquid fluid 1-11 to flow into the return pipe 3, open the controllable built-in valve 2-1 or the controllable pump pressure device or the controllable propulsion device or similar device 2-2, so that the liquid fluid 1-11 can flow back into the pressure chamber 1.

[0072] Given that the pressure chamber is an equivalent environment, the outlets of the return conduit 3, one-way valve 2, controllable built-in valve 2-1, or controllable pump pressure device, or controllable propulsion device or similar device 2-2 should be as close as possible to the surface inside the pressure chamber or the surface of the liquid fluid, so as to improve the efficiency of fluid return to the pressure chamber.

[0073] Example 1 Consider a connecting pipe with three branches. The diameter of the main horizontal pipe can be larger than or the same as the diameter of each branch. All branches have the same height and diameter, and the distance between the central branch B and branches A and C is the same. Each branch is open to the atmosphere.

[0074] Water is injected into any branch pipe, and the water level in each branch pipe is the same, indicating that the pressure in each branch pipe is the same, which is consistent with Pascal's theorem.

[0075] Example 2 Take the connecting pipe mentioned above and completely seal the upper end of branch pipe C. Water is injected into branch pipe B. It can be seen that the water levels in branch pipes A and B are the same, while the water level in branch pipe C is slightly lower. This indicates that there is unreleased air in branch pipe C, and the pressure of this unreleased air is greater than the water pressure in branches A and B, which conforms to Pascal's law.

[0076] Example 3 Take the connecting pipe from the previous section. Branch pipe A is bent and extended above branch pipe C, but it is not connected to branch pipe C. Branch pipe B is not connected to branch pipes A and C, but is connected to another pressurized gas pipe (which must not leak). The upper end of branch pipe C is open, and the lower end is fitted with a switch at the connection with the horizontal main pipe, but it is in a closed state. Therefore, the upper part of branch pipe C is also open to the atmosphere. At this point, it is no longer a connecting pipe.

[0077] When a certain pressure of gas is continuously supplied to branch pipe B, it can be seen that the water in branch pipe A quickly reaches the top of branch pipe C and flows into branch pipe C until it overflows. This indicates that the pressure in branch pipe A is greater than the pressure in branch pipe C, which is consistent with both Pascal's theorem and Bernoulli's theorem. The water in branch pipe A obtains a longer flow path, a larger flow rate, and a higher flow velocity, so its pressure is less than that of the horizontal main pipe and branch pipe B.

[0078] Example 4 Take the connecting pipe from the previous section. Branch pipe A is bent and extended to connect with branch pipe C. The switch at the lower end of branch pipe C where it connects to the horizontal main pipe remains closed, indicating that there is unvented air within the pipe diameter where branch pipes A and C connect. Branch pipe B remains connected to another pressurized gas pipe.

[0079] When a certain pressure of gas is continuously supplied to branch B, the water in branch A reaches the top of branch C and flows into branch C. The remaining gaseous gas in branch C floats above the surface. At this point, the supply of pressurized gas to branch B is stopped, maintaining the current state. If structural factors are disregarded, the pressure in branch B is at its highest, followed by branch A, and the pressure in branch C is at its lowest. This conforms to both Pascal's theorem and Bernoulli's theorem—the pressure in each branch is actually equal at this point.

[0080] When the valve at the connection between the lower end of branch pipe C and the main horizontal pipe is opened, the residual gas in branch pipe C rapidly moves towards branch pipe A and stops at the highest point of the bend in branch pipe A. A small portion of the water in branch pipe A exchanges positions with the gas in branch pipe C. Meanwhile, water from the main horizontal pipe also rapidly flows into branch pipes C and B. In branch pipe B, gas and water each occupy a portion of the space. This indicates that the residual gas in branch pipes B and C also exchanges positions with some of the water in the main horizontal pipe, and the pressure eventually reaches equilibrium. This still conforms to both Pascal's theorem and Bernoulli's theorem.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fully integrated fluid circulation system, mainly composed of a pressure chamber, a one-way valve or a controllable built-in valve or a controllable pump pressure device or a controllable propulsion device or similar device, a return conduit, etc., characterized in that: The check valve, controllable built-in valve, controllable pump pressure device, controllable propulsion device, return conduit, and load are all built into the pressure chamber; the check valve, controllable built-in valve, controllable pump pressure device, controllable propulsion device, or similar device can be connected to the outlet of the return conduit independently or in combination.

2. The fully integrated fluid circulation system according to claim 1, characterized in that: Fluid can only enter the pressure chamber through a return conduit and / or a one-way valve or a controllable built-in valve or a controllable pump pressure device or a controllable propulsion device or similar device built into the pressure chamber.

3. A simplified fluid circulation system according to claim 1, characterized in that: Fluid can only enter the pressure chamber through a return conduit and / or a one-way valve or a controllable built-in valve or a controllable pump pressure device or a controllable propulsion device or similar device built into the pressure chamber.

4. A fully integrated fluid circulation system with a one-way valve, a controllable built-in valve, a controllable pump pressure device, a controllable propulsion device, or a similar device, mainly composed of a pressure chamber, a one-way valve, a controllable built-in valve, a controllable pump pressure device, a controllable propulsion device, or a similar device, a return conduit, etc., characterized in that: The inlet height of the reflux conduit should always be below the surface height of the liquid fluid, and it may or may not be connected to a check valve; the outlet height of the reflux conduit, or the outlet height of the check valve, controllable built-in valve, controllable pump pressure device, controllable propulsion device, or similar device connected to it, should be above the surface of the liquid fluid.

5. A fully integrated fluid circulation system with a one-way valve, a controllable built-in valve, a controllable pump pressure device, a controllable propulsion device, or a similar device, mainly composed of a pressure chamber, a one-way valve, a controllable built-in valve, a controllable pump pressure device, a controllable propulsion device, or a similar device, a return conduit, etc., characterized in that: The valve core of the controllable built-in valve can perform various opening and closing movements, including linear movements that are parallel or coincident with the direction of fluid movement in the return duct installed in the pressure chamber, lateral lateral movements that are perpendicular to the direction of fluid movement in the return duct, oblique lateral movements that deflect a certain angle from the direction of fluid movement in the return duct, and linear or lateral lateral movements that deflect synchronously with the direction of fluid movement in the return duct.

6. A fluid circulation system with a fully integrated check valve, a controllable built-in valve, a controllable pump pressure device, a controllable propulsion device, or a similar device as described in claim 5, characterized in that: The valve core of the controllable built-in valve is an integral structure or a petal-like aperture structure, pupil structure, or similar structure.

7. A fully integrated fluid circulation system with a one-way valve, a controllable built-in valve, a controllable pump pressure device, a controllable propulsion device, or a similar device, mainly composed of a pressure chamber, a one-way valve, a controllable built-in valve, a controllable pump pressure device, a controllable propulsion device, or a similar device, a return conduit, etc., characterized in that: The reflux duct can be installed downwards from the top or above the pressure chamber, with the outlet facing downwards or in another direction; the reflux duct can also be installed upwards from the bottom or below the pressure chamber, with the outlet facing upwards or in another direction; the reflux duct can also be installed laterally from the side wall of the pressure chamber, with the outlet facing the side wall of the pressure chamber or in another direction.

8. A fully integrated fluid circulation system with a one-way valve, a controllable built-in valve, a controllable pump pressure device, a controllable propulsion device, or a similar device according to claim 7, characterized in that: When necessary, a throttling orifice can replace a one-way valve, a controllable built-in valve, a controllable pump pressure device, a controllable propulsion device, or a similar device built into the pressure chamber. The throttling orifice is used to control the flow rate by limiting the cross-sectional area through which the fluid passes.

9. A fully integrated fluid circulation system with a one-way valve, a controllable built-in valve, a controllable pump pressure device, a controllable propulsion device, or a similar device, mainly composed of a pressure chamber, a one-way valve, a controllable built-in valve, a controllable pump pressure device, a controllable propulsion device, or a similar device, a return conduit, etc., characterized in that: The controllable built-in valve, controllable pump pressure device, or controllable propulsion device can be controlled manually, electrically, or in other non-manual ways.

10. A pressure chamber, characterized in that: The working pressure inside the pressure chamber is greater than atmospheric pressure; the shape of the pressure chamber can be spherical or cylindrical, or other suitable shapes.

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