Fluid circulation system with controllable pumping device or controllable propulsion device

Abstract

The invention discloses a fluid circulation system with a controllable pumping pressure device or a controllable propelling device. The fluid circulation system is mainly composed of an equivalent pressure cabin, the controllable pumping pressure device or the controllable propelling device, a built-in through-flow pipe, an outboard valve, a backflow guide pipe and the like. The outboard valve is an independent one-way valve or an independent switch valve or a combination of the two valves. A controllable pumping pressure device or a controllable propelling device in the equivalent pressure cabin is connected with a built-in through-flow pipe, and the built-in through-flow pipe is connected with the equivalent pressure cabin or connected with a backflow guide pipe outside the equivalent pressure cabin. The controllable pumping pressure device or the controllable propelling device can be used independently and can also be used in combination with a built-in valve. The controllable propelling device comprises an electromagnetic propelling device.

Description

Technical Field

[0001] This invention relates to the field of fluid circulation technology, and more particularly to a gaseous fluid or gas-liquid fluid circulation system with a controllable pump pressure device or a controllable propulsion device. 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; while a gas-liquid fluid circulation system 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 with a controllable pump pressure device or a controllable propulsion device to solve the problem that in the prior art, fluid circulation usually involves first discharging the fluid to the normal environment and then reusing it. If it is a pressurized fluid, it is basically simply discharged, resulting in huge waste. Even the supercharger in a car can only recover a small portion of the pressurized gas for recycling.

[0007] On one hand, this invention provides a fluid circulation system with a controllable pump pressure device or a controllable propulsion device, including a pressure chamber, an external valve, a controllable pump pressure device or a controllable propulsion device, an internal flow passage pipe, an external valve, a return conduit, etc.; the controllable pump pressure device or controllable propulsion device in the pressure chamber is connected to the internal flow passage pipe, the internal flow passage pipe is connected to the return conduit (the internal flow passage pipe can also be integrated with the return conduit), and the return conduit is connected to the pressure chamber; the pressure chamber outlet is connected to the external valve, and the external valve is connected to the return conduit; the external valve is an independent check valve or an independent on / off valve, or it can be a combination of an independent check valve and an independent on / off valve, or it can be a combination including the functions of a check valve and an on / off valve. The controllable propulsion device includes an electromagnetic propulsion device, etc.

[0008] The working medium of a fluid circulation system with a controllable pump pressure device or a controllable propulsion device can be either a gaseous fluid or a gas-liquid fluid.

[0009] According to the present invention, a fluid circulation system with a controllable pump pressure device or a controllable propulsion device is provided. If the fluid in the pressure chamber is a gas-liquid fluid, the height of the liquid fluid should completely submerge the fluid outlet provided on the pressure chamber, and the gaseous fluid should not be able to enter the return duct from the fluid outlet.

[0010] According to the present invention, a fluid circulation system with a controllable pump pressure device or a controllable propulsion device is provided, wherein the pressure chamber may be provided with a plurality of fluid outlets, which are respectively connected to the same number of return conduits.

[0011] According to the present invention, a fluid circulation system having a controllable pump pressure device or a controllable propulsion device is provided, wherein the return conduit can be connected to one or more loads and other devices.

[0012] On the other hand, the present invention also provides a fluid circulation system with a controllable pump pressure device or a controllable propulsion device, including a pressure chamber, an external valve, a gaseous fluid or a gas-liquid fluid, a controllable pump pressure device or a controllable propulsion device, a built-in flow passage pipe, and a return flow pipe; the fluid can only flow through the fluid outlet and the return flow pipe, and then enter the pressure chamber through the built-in flow passage pipe and / or the controllable pump pressure device or the controllable propulsion device, and backflow of the fluid is not allowed.

[0013] According to the present invention, a fluid circulation system having a controllable pump pressure device or a controllable propulsion device is provided, wherein the flow cross-sectional area of ​​the controllable pump pressure device or the controllable propulsion device can be less than or equal to, or greater than, the flow cross-sectional area of ​​the built-in flow pipe. The flow cross-sectional area of ​​the controllable pump pressure device or the controllable propulsion device is typically the flow cross-sectional area of ​​its outlet.

[0014] The controllable pump pressure device or controllable propulsion device can be controlled manually, electrically, or in other non-manual control modes.

[0015] The equivalent pressure chamber can be spherical, cylindrical, or any other suitable shape.

[0016] To improve efficiency, fluid chambers 1-7 can be installed to store more fluid. Fluid flowing out of the fluid outlet enters the fluid chamber through a return conduit and then flows into the built-in flow pipe, thereby increasing the gravitational potential energy of the fluid returning to the pressure chamber, making it easier for the fluid to enter the pressure chamber. The fluid chamber connected to the built-in flow pipe is essentially an enlargement of the return conduit.

[0017] Because an equivalent pressure chamber is used as the energy storage and retention device for the fluid circulation system, the equivalent effect of the pressure chamber is constant and ubiquitous. The pressurized fluid may even seemingly "actively" break through the fluid's "defense" and enter the return conduit, resulting in a de facto "position exchange." This "position exchange" occurs because the gaseous pressurized fluid, which is the basis for energy retention, should ideally remain permanently in the upper position within the equivalent pressure chamber, using the structural force of the pressure chamber to compress the liquid fluid towards the outlet and back into the pressure chamber via the return conduit. Once this "position exchange" occurs, some or all of the gaseous pressurized fluid enters the guide pipe, while the liquid fluid either accumulates in the pressure chamber or remains in small amounts in the guide pipe, unable to circulate. This "position exchange" often occurs at the internal valve ports.

[0018] However, as the fluid flows out of the built-in valve, the flow column will inevitably be obstructed by the gaseous pressure fluid inside the pressure chamber. This prevents the fluid in the built-in flow passage and return pipe from flowing smoothly back into the pressure chamber. In some cases, as the fluid flows out of the built-in valve, it may force the liquid fluid to make way, while simultaneously seeping into the built-in valve and traveling up the built-in flow passage to the return pipe. The possible result is that a significant portion, or even all, of the gaseous pressure fluid escapes from the pressure chamber, causing depressurization, while the liquid fluid remains trapped inside, unable to flow.

[0019] Increasing the vertical height of the return conduit, and utilizing the corresponding gravitational potential energy generated by the height of the fluid, can certainly prevent the gaseous pressure fluid in the pressure chamber from penetrating the built-in valve port and flowing up the built-in flow pipe to the return conduit. However, this may result in an excessively large circulation system, affecting its practicality.

[0020] Using a controllable built-in valve is certainly a good approach. However, a drawback of this method is the need to select an appropriate flow cross-sectional area ratio between the valve and the pressure chamber outlet. Determining this ratio is difficult. If their flow cross-sectional areas are too close, a "position swap" may still occur. If they are significantly different, it may affect the circulation efficiency. Therefore, selecting an appropriate flow cross-sectional area ratio between the valve and the pressure chamber outlet will require extensive experimentation.

[0021] If a controllable pump pressure device or a controllable propulsion device is used instead of a built-in valve, this situation may be "prevented".

[0022] Both the controllable pump pressure device and the controllable propulsion device are externally powered devices. They work by continuously squeezing or drawing out the liquid fluid in the built-in flow pipe and into the pressure chamber. The liquid fluid entering the pressure chamber inevitably occupies the limited space of the pressure chamber, forcing the gaseous pressure fluid in the pressure chamber to squeeze the liquid fluid below it out of the pressure chamber outlet. Once the liquid fluid flows out of the pressure chamber outlet, it can only flow forward along the return pipe and cannot flow backward, because the one-way valve outside the chamber will not allow the liquid fluid flowing out of the pressure chamber outlet to flow back into the pressure chamber along the original path. It can only return to the pressure chamber through the built-in flow pipe via the return pipe.

[0023] The controllable pump pressure device or controllable propulsion device can be used independently or in combination with a built-in valve. In fact, the controllable pump pressure device or controllable propulsion device connected to the built-in flow passage pipe has its own interlocking function to prevent gaseous pressure fluid from entering the built-in flow passage pipe and return pipe.

[0024] In fluid circulation systems, it is not recommended to use or rely entirely on controlled pump pressure devices or controlled propulsion devices to drive the fluid circulation, including the energy required for the load. In other words, controlled pump pressure devices or controlled propulsion devices are merely auxiliary devices in the entire fluid circulation system to prevent gaseous pressurized fluid from flowing back into the internal flow passage. Their purpose is solely to help the liquid fluid in the internal flow passage overcome the "equivalent" effect of the pressure chamber environment, allowing the liquid fluid in the internal flow passage to flow smoothly into the pressure chamber.

[0025] Even if the controllable pump pressure device or controllable propulsion device itself has sufficient capacity to drive the complete fluid circulation, "render to Caesar the things that are Caesar's and to God the things that are God's," 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.

[0026] The reason why a controllable pump pressure device or a controllable propulsion device is installed inside the pressure chamber is that the closer it is to the boundary between two different environments, the less energy it consumes. Of course, if necessary, the controllable pump pressure device or controllable propulsion device can be installed outside the pressure chamber. However, installing the controllable pump pressure device or controllable propulsion device outside the pressure chamber will inevitably reduce efficiency and increase energy consumption.

[0027] To improve efficiency, fluid chambers 1-7 can be installed to store more fluid. Fluid flowing out of the fluid outlet enters the fluid chamber through a return conduit and then flows into the built-in flow pipe, thereby increasing the gravitational potential energy of the fluid returning to the pressure chamber, making it easier for the fluid to enter the pressure chamber. The fluid chamber connected to the built-in flow pipe is essentially an enlargement of the return conduit.

[0028] Fluid chamber 1-7 is a relatively large container, typically spherical or cylindrical in shape, capable of withstanding a certain pressure. If a one-way valve is installed at the connection between the fluid chamber and the return conduit 4 and / or the built-in flow pipe 4-1, it will become a large pressure regulating valve or pressure chamber. The liquid fluid inside fluid chamber 1-7 can be filled completely or not. If fluid chamber 1-7 is not filled with liquid fluid, the remaining gaseous fluid in the unfilled space will be naturally pressurized (or a small amount of gaseous fluid at a pressure higher than atmospheric pressure can be added), making it a pressure regulating or pressurizing chamber. Attached Figure Description

[0029] 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.

[0030] Figure 1 This is a structural diagram of the fluid circulation system with built-in flow passages installed from top to bottom, provided by the present invention; Figure 1-1 It is a structural diagram of a fluid circulation system with a fluid chamber, in which the built-in flow passage pipe is installed from top to bottom; Figure 2 This is a structural diagram showing the internal flow tube installed from bottom to top; Figure 2-1 It is a structural diagram of a fluid chamber with built-in flow passage pipes installed from top to bottom; Figure 3 This is a structural diagram of a horizontally positioned internal flow tube; Figure 3-1 This is a structural diagram of a fluid chamber with a horizontally positioned internal flow passage; Figure label: Pressure chamber 1, gaseous pressure fluid 1-1, liquid fluid 1-1, pressure input device 1-2, safety device (pressure relief) 1-3, liquid fluid replenishment port 1-4, fluid outlet 1-5, external valve 1-6, fluid chamber 1-7, controllable pump pressure device or controllable propulsion device 2, pressure stabilizing device or one-way check and backflow device 3, return flow conduit 4, built-in flow pipe 4-1, load 5, flow valve 6. Detailed Implementation

[0031] 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.

[0032] The fluid circulation system of the present invention will now be described with reference to the accompanying drawings. For ease of understanding, a gas-liquid self-circulating system will be used as an example.

[0033] Figure 1 This is one of the structural diagrams provided by the present invention.

[0034] like Figure 1 As shown, P represents the pressure value of pressure chamber 1, P1 represents the pressure measurement points at fluid outlets 1-5 of pressure chamber 1, P2 represents the pressure measurement point at the outlet of the controllable pump or controllable propulsion device 2, and P3 represents the pressure measurement point at the connection between the controllable pump or controllable propulsion device 2 and the return conduit 4. These pressure measurement points are not actual structures of the fluid circulation system, but are merely labels for easy understanding.

[0035] Pressure chamber 1 is one of the most important core components of the fluid circulation system.

[0036] 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 robust materials. The shape of pressure chamber 1 can be spherical, cylindrical, or a cube with other dimensions. After all channels, including the controllable pump pressure device or controllable propulsion device, and external valves, are closed, the internal pressure of the pressure chamber is equivalent at any point; hence, it is called an equivalent pressure chamber. An internal flow passage pipe 4-1 is installed inside pressure chamber 1.

[0037] Because the pressure at all points within the pressure chamber is equivalent, fluid is extremely difficult to enter the pressure chamber due to the internal pressure. An internal flow passage pipe 4-1 is installed inside pressure chamber 1. The pipe wall blocks the internal pressure of the pressure chamber, effectively creating a dedicated channel for fluid to enter the pressure chamber and preventing backflow. A fluid outlet 1-5 is also machined at the bottom of pressure chamber 1.

[0038] External valves 1-6 are connected to outlets 1-5 and reflux conduit 4 of pressure chamber 1, respectively, and can open or close the pressure chamber. The term "external valve" is a general term encompassing valves outside the pressure chamber, including check valves, relief valves, and on / off valves.

[0039] The return conduit 4 is a relatively long and slender pipe that serves as a passage for fluid outside the pressure chamber. One end of the return conduit 4 connects to the internal flow pipe 4-1, and the other end connects to the external valve 1-6. It can also connect to the flow valve 6, the pressure stabilizing device or the one-way check / reverse device (or both simultaneously), the load 5, etc. Furthermore, multiple loads 5 can be connected to the return conduit 4. It should be noted that the return conduit 4 can also extend directly into the pressure chamber, becoming the internal flow pipe 4-1. The difference between the internal flow pipe 4-1 and the return conduit 4 is that the internal flow pipe 4-1 is located inside the pressure chamber, while the return conduit 4 is located outside. Separate labeling and explanation make it easier to understand the working principle of the entire self-circulation system.

[0040] Pressure chamber 1 is also equipped with a pressure input device 1-2, a safety device (pressure relief) 1-3, and a liquid fluid replenishment port 1-4. Pressure chamber 1 can contain different fluids. If it is a gaseous circulation system, only gaseous fluid 1-1 is needed; if it is a gas-liquid circulation system, both gaseous fluid 1-1 and liquid fluid 1-11 are required. Gaseous fluid 1-1 is a pressurized fluid with high flowability, high compressibility, and high expandability, while liquid fluid 1-11 is a fluid that can flow rapidly under sufficient pressure.

[0041] If a gas-liquid fluid is used, the height (or depth) of the liquid fluid 1-11 in pressure chamber 1 must completely submerge the fluid outlet 1-5 (e.g., Figure 1 As shown, liquid fluid 1-11 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 contact surface between the liquid fluid and gaseous fluid 1-1. The lower arrow points to the liquid itself of liquid fluid 1-11, ensuring that gaseous fluid 1-1 cannot enter the return conduit 4 from fluid outlet 1-5. It should be noted that outlet 1-5 is the outlet of pressure chamber 1. The gaseous fluid 1-1 in pressure chamber 1 is usually input by pressure input device 1-2, such as an air compressor or air tank.

[0042] 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 from the fluid outlet 1-5 of the pressure chamber 1 into the return pipe 4. The return pipe 4 then inputs the liquid fluid 1-11 into the built-in flow pipe 4-1, and the controllable pump pressure device or the controllable propulsion device 2 is turned on, so that the liquid fluid 1-11 can flow back into the pressure chamber 1.

[0043] Pressure chamber 1 typically only needs to have one fluid outlet 1-5 machined at its lower position and connected to the return conduit 4. However, if necessary, pressure chamber 1 can also have several fluid outlets 1-5 machined, which are connected to the return conduit 4. When the pressure of the gaseous fluid 1-1 in pressure chamber 1 reaches the set pressure value, it forces the liquid fluid 1-11 to flow from each fluid outlet 1-5 into its corresponding return conduit 4, and the return conduit 4 then transports the liquid fluid 1-11 to the built-in flow pipe 4-1. In addition to being connected to multiple return conduits 4, the fluid outlets 1-5 of the pressure chamber 1 can also be connected to a return conduit 4 with a larger inner diameter. When the pressure of the gaseous fluid 1-1 in the pressure chamber 1 reaches the set value, the liquid fluid 1-11 is forced to flow from the fluid outlets 1-5 into the return conduit 4 with a larger inner diameter. Then, it is input into the built-in flow pipe 4-1 in the pressure chamber through the return conduit 4 with a larger inner diameter. The liquid fluid 1-11 can be returned to the pressure chamber 1 by turning on the controllable pump pressure device or the controllable propulsion device 2.

[0044] Pressure chamber 1 is usually also equipped with accessories such as pressure input device 1-2, safety device (pressure relief) 1-3, liquid fluid replenishment port 1-4, and flow valve 6.

[0045] The controllable pump pressure device or controllable propulsion device 2 is one of the most important core components in the fluid circulation system.

[0046] The controllable pump pressure device or controllable propulsion device 2 is essentially an externally powered device that can draw or compress fluid from the built-in flow passage 4-1 into the pressure chamber. Because it is installed inside the pressure chamber, it is collectively referred to as a controllable pump pressure device or controllable propulsion device. When the controllable pump pressure device or controllable propulsion device is not performing suction or compression operations, it can typically prevent the flow of fluid from the built-in flow passage 4-1 into the pressure chamber, and also prevent gaseous pressurized fluid from entering the built-in flow passage 4-1. The controllable pump pressure device or controllable propulsion device 2 can only be activated or deactivated according to control commands.

[0047] The pressure is equal at all points inside the pressure chamber, making it difficult for fluid to return to the pressure chamber by its own power. However, by incorporating the built-in flow pipe 4-1 inside the pressure chamber, the fluid has already entered the pressure chamber and can obviously flow out of the pressure chamber more easily from the controllable pump or controllable propulsion device.

[0048] There are generally three ways to install the controllable pump pressure device or controllable propulsion device 2: The controllable pump pressure device or controllable propulsion device in the pressure chamber can be installed from top to bottom, with the outlet of the controllable pump pressure device or controllable propulsion device usually facing downwards, but it can also be in other directions; it can also be installed from bottom to top, with the outlet of the controllable pump pressure device or controllable propulsion device usually facing upwards, but it can also be in other directions; the controllable pump pressure device or controllable propulsion device can also be installed laterally, with the outlet of the controllable pump pressure device or controllable propulsion device usually facing the side wall of the pressure chamber, but it can also be in other directions.

[0049] When using a gas-liquid fluid circulation system and installing the controllable pump pressure device or controllable propulsion device from top to bottom, the outlet of the controllable pump pressure device or controllable propulsion device 2 should face downwards and be as close as possible to the surface of the liquid fluid. When using a controllable built-in valve installed from bottom to top, the outlet of the controllable pump pressure device or controllable propulsion device 2 should face upwards and be as close as possible to the upper surface of the pressure chamber. When using a horizontally installed controllable pump pressure device or controllable propulsion device, the outlet of the controllable pump pressure device or controllable propulsion device 2 should be horizontally positioned and as close as possible to the side wall surface of the pressure chamber.

[0050] The outlet of the controllable pump pressure device or controllable propulsion device 2 should be as close as possible to the inner surface of the pressure chamber or the surface of the liquid fluid. This is because the closer the outlet of the controllable pump pressure device or controllable propulsion device is to the inner surface of the pressure chamber or the surface of the liquid fluid, the less interference the gaseous fluid in the pressure chamber will have on the fluid flowing out of the outlet of the controllable pump pressure device or controllable propulsion device 2. The fluid column flowing out of the outlet of the controllable pump pressure device or controllable propulsion device 2 also has a certain force, which helps to displace the surrounding gaseous fluid and prevent the gaseous fluid from flowing back into the built-in flow pipe 4-1.

[0051] Specifically, regardless of whether the controllable pump pressure device or controllable propulsion device 2 is installed facing upwards, downwards, or laterally, the maximum distance between its outlet and the inner surface of the pressure chamber or the surface of the liquid fluid is generally no greater than 5 times the outlet diameter of the controllable pump pressure device or controllable propulsion device. For example, when the outlet diameter of the controllable pump pressure device or controllable propulsion device is 10 mm, the maximum distance between the outlet of the controllable pump pressure device or controllable propulsion device and the inner surface of the pressure chamber or the surface of the liquid fluid is no greater than 50 mm (10 mm × 5); as another example, when the outlet diameter of the controllable pump pressure device or controllable propulsion device 2 is 5 mm, the maximum distance between the outlet of the controllable pump pressure device or controllable propulsion device 2 and the inner surface of the pressure chamber or the surface of the liquid fluid is no greater than 25 mm (5 mm × 5).

[0052] The pressure stabilizing device 3 is a device that can stabilize the pressure of the circulating system and even increase the pressure of the circulating system. The pressure stabilizing device is connected to the return conduit 4, and can be connected to the return conduit outside the pressure chamber 1 or to the built-in flow pipe 4-1 inside the pressure chamber.

[0053] The voltage stabilizing device 3 has several different control methods, such as mechanical control, motor control, or fluid control.

[0054] The fluid-controlled pressure stabilizing device 3 can independently provide pressure stabilization. Its working chamber is a fluid channel, equipped with at least one check valve, allowing fluid to flow out from pressure chamber outlets 1-5 and towards the pressure chamber, while preventing backflow. The pressure stabilization effect will be better if multiple check valves are installed.

[0055] Working principle The principle of gas-liquid fluid circulation is more complex than that of gaseous fluid circulation, so the principle of gas-liquid fluid circulation is used as the basis for explanation.

[0056] A certain amount of gaseous fluid 1-1 and liquid fluid 1-11 are introduced into pressure chamber 1. Due to density and gravity, liquid fluid 1-11 is always below gaseous fluid 1-1. The height of the liquid fluid must always submerge the fluid outlet 1-5 to ensure that gaseous fluid 1-1 cannot escape from pressure chamber 1 under any circumstances, and to ensure that gaseous fluid never enters the return conduit 4, maintaining a constant state and constant quantity. "Constant state" means that the gaseous fluid always maintains a set constant pressure within pressure chamber 1; "constant quantity" means that the spatial volume of the gaseous fluid within the pressure chamber remains constant.

[0057] The upper surface of the liquid fluid 1-11 is a natural self-flowing plane, meaning it naturally has a horizontal interface. The gaseous fluid 1-1 inside pressure chamber 1 will uniformly cover the upper surface of the liquid fluid 1-11, thus passively forming a horizontal interface on the lower surface of the gaseous fluid 1-1. The upper surface of the liquid fluid 1-11 therefore bears the average pressure within pressure chamber 1.

[0058] Liquid fluid 1-11 can usually flow easily from fluid outlet 1-5 of pressure chamber 1 to return conduit 4. However, because gaseous fluid 1-1 in pressure chamber 1 has sufficient pressure, it is quite difficult for liquid fluid 1-11 to re-enter pressure chamber 1.

[0059] According to Pascal's law, the fluid pressure in a closed container will act uniformly at all points. Therefore, the gaseous fluid 1-1 in pressure chamber 1, which has reached the set pressure value, will also act evenly on each point. However, the even acting on each point mentioned here mainly refers to the fluid outlet 1-5 of pressure chamber 1, the outlet of the controllable pump pressure device or controllable propulsion device 2 in pressure chamber 1, and other flow channels.

[0060] At this point, the pressure value P applied by the gaseous fluid 1-1 to the surface of the liquid fluid 1-11 is exactly equal to that at any point or any point inside the pressure chamber 1 (pressure measurement points P1 and P2 are equivalent). As for the measurement point P3 at the connection between the controllable pump pressure device or the controllable propulsion device 2 and the return duct, it may or may not be equal to the pressure value P, measurement points P1, and P2 inside the pressure chamber 1. The key to whether they are "equal" or "unequal" is the "open" or "closed" state of the external valve 1-6.

[0061] If the external valves 1-6 are in the "closed" state, the pressure chamber 1 is not connected to the controllable pump pressure device or the controllable propulsion device 2 and the return conduit, and the pressure value at measuring point P3 is less than the pressure values ​​at measuring points P1 and P2 inside the pressure chamber 1.

[0062] If the external valves 1-6 are in the "open" state at this time, there are two possibilities: 1. The outlet of the controllable pump pressure device or the controllable propulsion device 2 is still not open, then the pressure value of measuring point P3 should be equal to the pressure values ​​of measuring points P1 and P2 inside pressure chamber 1; 2. The outlet of the controllable pump pressure device or the controllable propulsion device 2 is open, and liquid fluid 1-11 flows out from the outlet of the controllable pump pressure device or the controllable propulsion device 2, then the pressure value of measuring point P3 should be less than the pressure values ​​of measuring points P1 and P2 inside pressure chamber 1, and as the flow rate of liquid fluid 1-11 continues or even increases, according to Bernoulli's principle, the difference between the pressure value of measuring point P3 and the pressure values ​​of measuring points P1 and P2 will be greater.

[0063] 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 break through the barrier of the gaseous fluid 1-1 and flow back into pressure chamber 1. If the pressure at measuring point P3 is greater than the pressures at measuring points P1 and P2, then the liquid fluid 1-11 should be able to break through the barrier of the gaseous fluid 1-1 and flow back into pressure chamber 1.

[0064] In reality, once the external valve 1-6 is opened, a channel is immediately formed between the pressure chamber 1 and the controllable pump pressure device or controllable propulsion device 2 and the return conduit. The gaseous fluid 1-1 will immediately flow towards the controllable internal valve or controllable propulsion device 2, the internal flow pipe 4-1, and the return conduit 4, attempting to break through the "defense" of the controllable pump pressure device or controllable propulsion device 2 and flow upwards into the return conduit 4. At the same time, the liquid fluid 1-11 that was already full in the return conduit 4 will also immediately flow downwards. Of course, these are just the "trends" and "directions" of both at the moment the external valve 1-6 is opened.

[0065] If gaseous fluid 1-1 and liquid fluid 1-11 are personified, gaseous fluid 1-1 would most like to exchange positions with liquid fluid 1-11 to enter the controllable pump pressure device or controllable propulsion device 2, the built-in flow passage pipe 4-1, or the return conduit 4, while liquid fluid 1-11 in the built-in flow passage pipe 4-1 would like to break through the barrier of gaseous fluid 1-1 to enter the pressure chamber 1.

[0066] Once the pressure of the gaseous fluid 1-1 in the pressure chamber 1 rises to a sufficient level, the liquid fluid 1-11 will have to flow from the fluid outlet 1-5 of the pressure chamber 1 through the return conduit 4 into the controllable built-in valve 2.

[0067] Furthermore, liquid fluid 1-11 possesses another inherent advantage: the density of the adaptable and flexible liquid fluid 1-11 is far greater than that of gaseous fluid 1-1, with a density difference of hundreds of times for equal volumes—a truly significant disparity. If the potential "wall adhesion" effect and interfacial "tension" effect of liquid fluid 1-11 can be eliminated, gaseous fluid 1-1 cannot prevent the liquid fluid 1-11 from falling under the influence of gravitational acceleration. In other words, once the much less dense gaseous fluid 1-1 is forced to avoid the much denser liquid fluid 1-11 and receives the added force of gravitational acceleration, the gaseous fluid 1-1 within pressure chamber 1 cannot resist the downward flow of liquid fluid 1-11 within the one-way check and reversal device 2.

[0068] The continuity of the flow of liquid fluid 1-11 is sufficient to prevent the reverse-flowing gaseous fluid 1-1 from exchanging positions with the forward-flowing liquid fluid 1-11.

[0069] As long as the reverse-flowing gaseous fluid 1-1 and the forward-flowing liquid fluid 1-11 do not exchange positions, it is possible for the liquid fluid 1-11 to circulate from the pressure chamber 1 through the return pipe 4 to the controllable pump pressure device or the controllable propulsion device 2 and then back to the pressure chamber 1.

[0070] The gaseous fluid 1-1 in pressure chamber 1 is compressed by the continuous inflow of liquid fluid 1-11 through the one-way check valve 2, thus increasing the pressure P within pressure chamber 1. This forces the liquid fluid to continue flowing from fluid outlet 1-5 to return conduit 4, maintaining a constant volume and pressure of gaseous fluid 1-1 within pressure chamber 1, restoring overall pressure equilibrium. The liquid fluid 1-11 flowing from fluid outlet 1-5 to return conduit 4, under the pressure of the gaseous fluid 1-1, returns to the controllable pump or controllable propulsion device 2 and flows downwards into pressure chamber 1, completing the cycle.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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 fluid circulation system with a controllable pump pressure device or a controllable propulsion device, mainly composed of a pressure chamber, a controllable pump pressure device or a controllable propulsion device, an internal flow pipe, an external valve, a return flow pipe, etc., characterized in that: The controllable pump pressure device or controllable propulsion device in the pressure chamber can be installed from top to bottom, with the outlet of the controllable pump pressure device or controllable propulsion device facing downward or in another direction; the controllable pump pressure device or controllable propulsion device can also be installed from bottom to top, with the outlet of the controllable pump pressure device or controllable propulsion device facing upward or in another direction; the controllable pump pressure device or controllable propulsion device can also be installed laterally, with the outlet of the controllable pump pressure device or controllable propulsion device facing the side wall of the pressure chamber or in another direction.

2. A fluid circulation system with a controllable pump pressure device or a controllable propulsion device according to claim 1, characterized in that: The controllable pump pressure device or controllable propulsion device is controlled manually, electrically, or in other non-manual ways.

3. A fluid circulation system with a controllable pump pressure device or a controllable propulsion device according to claim 1, characterized in that: When necessary, a controllable pump pressure device or a controllable propulsion device can be installed outside the pressure chamber.

4. A fluid circulation system with a controllable pump pressure device or a controllable propulsion device according to claim 1, characterized in that: Fluid can only enter the pressure chamber through the built-in flow passage and / or the controllable pump pressure device or the controllable propulsion device.

5. A fluid circulation system with a controllable pump pressure device or a controllable propulsion device according to claim 1, characterized in that: The flow cross-sectional area of ​​the controllable pump pressure device or controllable propulsion device is less than or equal to, or greater than, the flow cross-sectional area of ​​the built-in flow pipe.

6. A fluid circulation system with a controllable pump pressure device or a controllable propulsion device according to claim 1, characterized in that: The controllable pump pressure device or controllable propulsion device can be used independently or in combination with the built-in valve.

7. A fluid circulation system with a controllable pump pressure device or a controllable propulsion device according to claim 1, characterized in that: The reflux conduit can be connected to one or more loads, and can also be connected to other devices.

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