Testing device for measuring drainage capacity of compressible fluid

Abstract

The invention relates to the technical field of ship drainage, and discloses a testing device for measuring the drainage capacity of compressible fluid, which comprises a first simulation cabin, a second simulation cabin, a power cabin and a flow monitoring mechanism, the first simulation bin is provided with a first cavity, and high-pressure air is contained in the first cavity; the second simulation bin is provided with a second cavity filled with water, and the second cavity is selectively communicated with the first cavity through a first pipeline; a first storage chamber for storing compressible fluid is arranged in the power bin, and the first storage chamber selectively communicates with the second chamber; the flow monitoring mechanism is arranged on the first pipeline, the flow monitoring mechanism is suitable for detecting the amount of water flowing into the first cavity from the second cavity when the compressible fluid in the first storage cavity continuously enters the second cavity, and the testing device for measuring the drainage capacity of the compressible fluid improves the accuracy.

Description

Technical Field

[0001] The present application relates to the technical field of ship displacement, and in particular to a test device for measuring the displacement capacity of a compressible fluid. Background Art

[0002] When a ship is sailing, it is necessary to adjust the longitudinal and transverse inclination or overall buoyancy by filling and draining different water tanks. The existing filling and drainage methods are mainly pump-driven drainage and air-driven drainage. Among them, air-driven drainage is to pass the pre-stored high-pressure compressed compressible fluid, such as air, nitrogen, carbon dioxide, etc., into the water tank to press part of the water in the water tank out of the ship. Its advantage is that it does not require the installation of additional power sources or consumption of electrical energy, so it is widely used. Compared with the pump-driven drainage scheme, the disadvantage of the air-driven drainage scheme is that the compressible fluid relies on its compressed expansion effect to drain water. This expansion process requires a certain amount of time, which makes it difficult to quantitatively control the displacement of the actual ship, and the displacement control results are often inaccurate. It is necessary to provide a quantitative test device on land for the drainage capacity of different media under different pressure conditions, and test and determine the drainage capacity in advance, so as to quantitatively control it in actual ship use. Summary of the invention

[0003] The present application provides a test device for measuring the drainage capacity of a compressible fluid, thereby improving the accuracy of the test device.

[0004] In order to achieve the above objectives, the main technical solutions adopted in this application include: In a first aspect, an embodiment of the present application provides a test device for measuring the drainage capacity of a compressible fluid, comprising a first simulation chamber, a second simulation chamber, a power chamber and a flow monitoring mechanism; the first simulation chamber has a first chamber, wherein the first chamber has high-pressure air; the second simulation chamber has a second chamber filled with water, and the second chamber can be selectively connected to the first chamber through a first pipeline; a first storage chamber for storing compressible fluid is provided in the power chamber, and the first storage chamber can be selectively connected to the second chamber; the flow monitoring mechanism is arranged in the first pipeline, and the flow monitoring mechanism is suitable for detecting the amount of water flowing from the second chamber into the first chamber when the compressible fluid in the first storage chamber continuously enters the second chamber.

[0005] The test device for measuring the drainage capacity of a compressible fluid proposed in the embodiment of the present application simulates the interaction between high-pressure gas and liquid through the first simulation chamber and the second simulation chamber, thereby simulating different pressure environments, making it easy to obtain accurate test conditions, thereby improving the accuracy of the test results. The flow monitoring mechanism can accurately measure the flow rate when transferring water from the second chamber to the first chamber, and can reduce the impact of environmental factors before and after the water transfer on the test results, thereby improving the accuracy of the test device for measuring the drainage capacity of a compressible fluid.

[0006] Optionally, the first pipeline is connected to the bottom of the first simulation chamber and the bottom of the second simulation chamber.

[0007] In the above scheme, the bottom connection method facilitates the smooth transmission of the fluid and reduces the influence of gravity on the fluid transmission. In the simulation system, when the fluid needs to be transmitted between two simulation chambers, the bottom connected pipeline can ensure that the fluid can flow along a relatively stable path, reducing the influence of turbulence and resistance, thereby improving the accuracy of the test device used to measure the drainage capacity of compressible fluids.

[0008] Optionally, when the second chamber is filled with water and the first chamber is not connected to the second chamber, water is stored in the first chamber, and the height of the water level in the first chamber is not lower than the height of the first pipeline.

[0009] In the above scheme, when the water level in the first chamber is higher than the height of the first pipeline, a liquid seal can be achieved to prevent high-pressure air from entering the first pipeline and then the first chamber, thereby reducing the probability of inaccurate flow monitoring of the first pipeline due to high-pressure air, thereby improving the accuracy of the test device for measuring the drainage capacity of compressible fluids.

[0010] Optionally, the compressible fluid comprises at least one of carbon dioxide, nitrogen and air.

[0011] In the above scheme, carbon dioxide, nitrogen and air are all easily compressed and have high fluidity, and can pass through pipes or valves quickly, which helps to improve the reliability of the test device for measuring the drainage capacity of compressible fluids.

[0012] Optionally, a first drain valve is disposed at the bottom of the second simulation chamber, and a first exhaust valve is disposed at the top of the second simulation chamber. Both the first drain valve and the first exhaust valve can be selectively connected to the second chamber.

[0013] In the above scheme, the first drain valve is located at the bottom of the second simulation chamber, which can reduce the flow resistance and mixing time of water in the chamber, thereby improving the water injection efficiency, allowing the water to fill the entire chamber more quickly, and reducing the probability of residual gas when filled with water. The first exhaust valve is located at the top, ensuring that the gas can escape smoothly from a high altitude, which helps to quickly release the gas in the second simulation chamber and reduce the probability of gas accumulation in the simulation chamber to form an air chamber, thereby reducing the probability of gas remaining in the second simulation chamber, which helps to improve the accuracy of the test device for measuring the drainage capacity of compressible fluids.

[0014] Optionally, a first overflow port is further provided on the top of the second simulation chamber, and the first overflow port can be selectively communicated with the second chamber.

[0015] In the above scheme, the first overflow port can play an overflow role to improve the safety of the second simulation chamber. When the pressure in the second simulation chamber exceeds the safety value, the pressure can be released through the first overflow port, thereby ensuring the safety of the second simulation chamber and helping to improve the safety of the test device for measuring the drainage capacity of compressible fluids.

[0016] Optionally, the first exhaust valve is designed as a first overflow opening.

[0017] In the above scheme, the first exhaust valve can not only exhaust when the second simulation chamber is filled with water, but also detect whether the water is full. At the same time, it can also selectively exhaust when the second simulation chamber is tested, reducing the additional outlet of the second simulation chamber and helping to ensure the airtightness of the second simulation chamber.

[0018] Optionally, a first isolation valve is provided on the first pipeline, and a second drain port is provided at the bottom of the first simulation chamber, and the second drain port can be selectively communicated with the first chamber.

[0019] In the above scheme, the setting of the first isolation valve allows flexible switching control of the first pipeline, and the second drain outlet is set at the bottom of the first simulation chamber, which can reduce the flow resistance and mixing time of water in the chamber, thereby improving the water injection efficiency, and helping to ensure that the part of the first pipeline connected to the first simulation chamber is completely filled with water, reducing the probability of high-pressure gas affecting flow monitoring, thereby improving the accuracy of the test device.

[0020] Optionally, a first air supply valve and a second air exhaust valve are provided on the top of the first simulation chamber, and both the first air supply valve and the first air exhaust valve can be selectively connected to the first chamber.

[0021] In the above scheme, the first air supply valve can input high-pressure air into the first simulation chamber. By accurately controlling the opening degree and duration of the air supply valve, the gas pressure, flow and composition in the simulation chamber can be accurately adjusted. The second exhaust valve can discharge the high-pressure gas in the first simulation chamber to change the pressure in the first simulation chamber, which helps to maintain the stability of the environment in the first simulation chamber, thereby improving the accuracy of the test device.

[0022] Optionally, the first simulation chamber is provided with a first pressure detection mechanism for detecting the pressure in the first chamber.

[0023] In the above scheme, the first pressure detection mechanism can monitor the pressure changes in the first chamber in real time, thereby facilitating accurate control of the pressure conditions of the test and helping to improve the accuracy and reliability of the test.

[0024] Optionally, a second isolation valve is provided between the power chamber and the second simulation chamber, and the second isolation valve can selectively connect the first storage chamber with the second chamber.

[0025] In the above scheme, the first storage chamber and the second chamber can be selectively connected through the second isolation valve, so as to control the flow of materials in the first storage chamber and the second chamber, so that the connection between the power chamber and the second simulation chamber becomes controllable, thereby achieving precise control of the test conditions and helping to improve the accuracy of the test.

[0026] Optionally, the test device for measuring the drainage capacity of a compressible fluid further comprises a general control unit, a first sub-control unit and a second sub-control unit, and the general control unit is communicatively connected with the first sub-control unit and the second sub-control unit respectively; The first sub-control unit is communicatively connected with the second isolation valve and the first exhaust valve, and the second sub-control unit is communicatively connected with the first isolation valve, the first air supply valve, and the second exhaust valve.

[0027] In the above scheme, the communication connection between the main control unit and each sub-control unit can monitor the status of each sub-control unit and the corresponding equipment in real time, realize further automated control, and help improve the accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is an overall system block diagram of some embodiments of the present application; Figure 2 A schematic diagram of communication connections of the first sub-control unit in some embodiments of the present application; Figure 3 This is a schematic diagram of the experimental process in some embodiments of the present application.

[0030] [Description of Reference Numerals] 100: first simulation chamber; 110: first chamber; 120: second drain port; 140: first air supply valve; 150: second air exhaust valve; 160: first pressure detection mechanism; 170: first liquid level gauge; 200: second simulation chamber; 210: second chamber; 220: first drain valve; 230: first exhaust valve; 240: first overflow port; 250: second liquid level gauge; 300: power chamber; 310: first storage chamber; 320: second isolation valve; 400: Flow monitoring agency; 500: first pipeline; 510: first isolation valve; 600: main control unit; 610: first sub-control unit; 620: second sub-control unit. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0032] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0033] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0034] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0036] The term "multiple" as used in the present application refers to more than two (including two). Similarly, the term "multiple groups" refers to more than two groups (including two groups), and the term "multiple sheets" refers to more than two sheets (including two sheets).

[0037] When a ship is sailing, it needs to adjust the longitudinal and transverse inclination or overall buoyancy by filling and draining water from different water tanks. The existing filling and drainage methods are mainly pump-driven drainage and air-driven drainage. Among them, air-driven drainage is to pass the pre-stored high-pressure compressed compressible fluid, such as air, nitrogen, carbon dioxide, etc., into the water tank to press part of the water in the water tank out of the ship. Its advantage is that it does not require the installation of additional power sources or consumption of electricity, so it is widely used. Compared with the pump-driven drainage solution, the disadvantage of the air-driven drainage solution is that the compressible fluid relies on its compressed expansion effect to drain water. This expansion process requires a certain amount of time, which makes it difficult to quantitatively control the displacement of actual ships and is often inaccurate.

[0038] In view of this, in order to improve the accuracy of the test device for measuring the drainage capacity of a compressible fluid, the present application embodiment provides a test device for measuring the drainage capacity of a compressible fluid, please refer to Figure 1 and Figure 2 , including a first simulation chamber 100, a second simulation chamber 200, a power chamber 300 and a flow monitoring mechanism 400.

[0039] The first simulation chamber 100 has a first chamber 110, and the first chamber 110 has high-pressure air. It can be understood that the high-pressure air in the first chamber 110 can provide pressure, thereby changing the pressure in the first chamber 110, which helps to conduct tests under different pressure conditions, thereby helping to accurately obtain the displacement under different pressures.

[0040] The second simulation chamber 200 has a second chamber 210 filled with water, and the second chamber 210 is selectively connected to the first chamber 110 through the first pipe 500. It can be understood that when the second chamber 210 is connected to the first chamber 110 through the first pipe 500, the water in the second chamber 210 is subjected to the pressure from the compressed air in the first chamber 110, so that the pressure in the first chamber 110 is the same as that in the second chamber 210.

[0041] That is to say, when the second chamber 210 is not connected to the first chamber 110, the first chamber 110 and the second chamber 210 form two independent chambers, so that the high-pressure air in the first chamber 110 will not affect the water in the second chamber 210, which helps to independently input and output the high-pressure air in the first chamber 110, thereby independently completing the pressure regulation.

[0042] Such a configuration can, on the one hand, prevent the high-pressure gas in the first chamber 110 from entering the second chamber 210 due to the pressure, thereby reducing the probability of the internal pressure of the second chamber 210 changing prematurely; on the other hand, it can prevent the water in the second chamber 210 from entering the first chamber 110, thereby ensuring the detection accuracy of the second chamber 210.

[0043] In addition, the first chamber 110 and the second chamber 210 that are not connected to each other can also facilitate water injection into the second chamber 210, reduce the influence of pressure on the water injection process, and thus improve the water injection efficiency.

[0044] A first storage chamber 310 for storing compressible fluid is provided in the power compartment 300. The first storage chamber 310 can be selectively connected to the second chamber 210. It can be understood that when the first storage chamber 310 is connected to the second chamber 210, the compressible fluid in the first storage chamber 310 can enter the second chamber 210, thereby squeezing the water in the second chamber 210, thereby achieving drainage.

[0045] When the first storage chamber 310 is not connected to the second chamber 210, the first storage chamber 310 and the second chamber 210 form two independent chambers, so that the compressible fluid in the first storage chamber 310 will not affect the water in the second chamber 210, which helps to smoothly inject water into the second chamber 210. At the same time, the compressible fluid is separated from the water, reducing the probability of the compressible fluid interacting with the water too early, thereby improving the accuracy of the test.

[0046] The flow monitoring mechanism 400 is disposed in the first pipeline 500. It can be understood that the flow monitoring mechanism 400 can accurately measure the flow in the first pipeline 500, thereby obtaining accurate test results.

[0047] As an example, the flow monitoring mechanism 400 can be set inside the first pipeline 500 to monitor the flow inside the first pipeline 500, or the flow monitoring mechanism 400 can divide the first pipeline 500 into two sections. The flow monitoring mechanism 400 has an input end and an output end. The input end and the output end of the flow monitoring mechanism 400 are respectively connected to the two sections of the first pipeline 500 to monitor the flow of the liquid flowing through the first pipeline 500.

[0048] As an example, the flow monitoring mechanism 400 can be clamped, bolted, or sleeved on the first pipeline 500, which is not limited in the present application.

[0049] The flow monitoring mechanism 400 is suitable for detecting the water flow from the second chamber 210 to the first chamber 110 when the compressible fluid in the first storage chamber 310 continues to enter the second chamber 210. It can be understood that when the compressible fluid in the first storage chamber 310 continues to enter the second chamber 210, the pressure in the second chamber 210 rises, thereby squeezing the water in the second chamber 210 to the first chamber 110 through the first pipeline 500. The water flow in the first pipeline 500 at this time is monitored by the flow monitoring mechanism 400 to obtain accurate drainage test results.

[0050] In the above scheme, the interaction between high-pressure gas and liquid is simulated by the first simulation chamber 100 and the second simulation chamber 200, thereby simulating different pressure environments, which is convenient for obtaining accurate test conditions, thereby improving the accuracy of the test results. The flow monitoring mechanism 400 can accurately measure the flow of the first pipeline 500 when water is transferred from the second chamber 210 to the first chamber 110, which can reduce the impact of environmental factors before and after the water transfer on the test results, and help to improve the accuracy of the monitoring results, thereby improving the accuracy of the test device for measuring the drainage capacity of compressible fluids.

[0051] In other embodiments, please refer to Figure 1 The first pipeline 500 is connected to the bottom of the first simulation chamber 100 and the bottom of the second simulation chamber 200, thereby reducing the probability of high-pressure air entering the first pipeline 500 and improving the accuracy of flow monitoring of the first pipeline 500.

[0052] As an example, the ratio of the liquid level in the first simulation chamber 100 to the diameter of the first pipeline 500 is in the range of 1.2-2.5.

[0053] By optimizing the ratio of the liquid level height in the first simulation chamber 100 to the diameter of the first pipeline 500 within a range of 1.2-2.5, on the one hand, it is ensured that there is sufficient liquid sealing pressure in the first simulation chamber 100, reducing the probability of gas entering the first pipeline 500, thereby reducing the gas-liquid mixing rate in the first pipeline 500; on the other hand, it can reduce the probability of high-pressure gas in the first simulation chamber 100 rebounding to the first pipeline 500 during the test, which helps to improve the accuracy of the test.

[0054] Optionally, the ratio of the liquid level in the first simulation chamber 100 to the diameter of the first pipeline 500 may be 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.1, 2.2, 2.3, 2.4, or 2.5.

[0055] As an example, the first pipeline 500 can be welded, clamped, bolted or threaded with the first simulation chamber 100 and the second simulation chamber 200. The material of the first pipeline 500 can be the same as that of the first simulation chamber 100 and the second simulation chamber 200 or different materials, which is not limited in the present application.

[0056] Specifically, an inclined surface is provided between one end of the first pipeline 500 connected to the second simulation chamber 200, and the inclined surface extends from the first simulation chamber 100 to the second simulation chamber 200 along the extension direction of the first pipeline 500, and the height of the inclined surface in the vertical direction gradually decreases.

[0057] The inclination angle between the inclined surface and the vertical direction is 5°-10°, which enhances the self-emptying capability and further reduces the gas-liquid mixing ratio in the first pipeline 500 .

[0058] As an example, a spiral guide vane structure is provided in the first pipeline 500, and the guide angle is 30°-45°, which can suppress turbulence during the test, reduce the impact of turbulence on the volume flow meter, and help improve the accuracy of the test results.

[0059] As an example, the first pipeline 500 is detachably connected to the first simulation chamber 100 and the second simulation chamber 200 to achieve the replaceability of the first pipeline 500. The first pipeline 500 can be replaced with pipelines of different diameters to achieve drainage tests under different diameters.

[0060] The bottom connection method helps to smoothly transfer the fluid and reduce the influence of gravity on fluid transfer. In the simulation system, when the fluid needs to be transferred between two simulation chambers, the bottom connection pipeline can ensure that the fluid can flow along a relatively stable path, reducing the influence of turbulence and resistance, thereby improving the accuracy of the test device used to measure the drainage capacity of compressible fluids.

[0061] In other embodiments, when the second chamber 210 is filled with water and the first chamber 110 is not connected to the second chamber 210 , water is stored in the first chamber 110 , and the water level in the first chamber 110 is not lower than the height of the first pipeline 500 .

[0062] It can be understood that when the water level line in the first chamber 110 is higher than the height of the first pipeline 500, it can achieve a liquid seal effect to prevent high-pressure air from entering the first pipeline 500 and entering the first chamber 110, thereby reducing the probability of inaccurate flow monitoring of the first pipeline 500 caused by high-pressure air.

[0063] In other embodiments, the compressible fluid includes at least one of carbon dioxide, nitrogen, and air.

[0064] It is understood that carbon dioxide, nitrogen and air are easily compressed and have high fluidity, and can pass through pipes or valves quickly, which helps to improve the reliability of test equipment used to measure the drainage capacity of compressible fluids.

[0065] In other embodiments, please refer to Figure 1 A first drain valve 220 is provided at the bottom of the second simulation chamber 200. It can be understood that the first drain valve 220 can play the role of injecting water into the second simulation chamber 200, and the first drain valve 220 is located at the bottom of the second simulation chamber 200. Compared with injecting water from the top or side, bottom water injection can reduce the flow resistance and mixing time of water in the chamber, thereby improving the water injection efficiency and allowing the water to fill the entire chamber more quickly.

[0066] In addition, the probability of residual gas in the first pipeline 500 can be reduced, ensuring that the first chamber 110 and the connected part of the first pipeline 500 are filled with water, thereby helping to improve the accuracy of the test.

[0067] In addition, the first drain valve 220 can also play a role in draining water. The first drain valve 220 is located at the bottom of the simulation chamber and can quickly drain the accumulated water or excess liquid in the simulation chamber.

[0068] A first exhaust valve 230 is provided on the top of the second simulation chamber 200. It can be understood that the first exhaust valve 230 can play the role of exhaust, ensuring that the gas can escape smoothly from a high place, helping to quickly release the gas in the second simulation chamber 200, and reducing the probability of air accumulation in the simulation chamber to form an air chamber, thereby reducing the probability of gas remaining in the second simulation chamber 200, and helping to improve the accuracy of the test device for measuring the drainage capacity of compressible fluids.

[0069] At the same time, the first exhaust valve 230 located at the top of the second simulation chamber 200 can also reduce the probability of water flowing out of the first exhaust valve 230 during the water injection process, thereby reducing the probability of water obstructing the discharge of gas.

[0070] The first drain valve 220 and the first exhaust valve 230 may be selectively connected to the second chamber 210 . It is understandable that the first drain valve 220 and the first exhaust valve 230 may be selectively connected to the second chamber 210 according to actual needs.

[0071] When the first exhaust valve 230 and the first drain valve 220 are both connected to the second chamber 210, and the first drain valve 220 plays a role in draining water, the first exhaust valve 230 can play a role in inputting air to balance the air pressure, and the first exhaust valve 230 located at the top of the second simulation chamber 200 ensures that the air input path will not affect the drainage, and the first drain valve 220 located at the bottom of the second simulation chamber 200 can drain water smoothly, reduce the probability of interference with the input air, and use the effect of gravity to reduce the probability of drainage residue.

[0072] When the first exhaust valve 230 and the first drain valve 220 are both connected to the second chamber 210, and the first drain valve 220 plays a role in injecting water, the first exhaust valve 230 can exhaust air to balance the air pressure, and the first exhaust valve 230 located at the top of the second simulation chamber 200 makes the air exhaust path not affect the water injection, and the first drain valve 220 located at the bottom of the second simulation chamber 200 can smoothly inject water and help reduce the probability of residual gas in the first pipeline 500, ensuring that the first chamber 110 and the connected part of the first pipeline 500 are filled with water, thereby helping to improve the accuracy of the test.

[0073] When the first drain valve 220 and the first exhaust valve 230 are not connected to the second chamber 210, it can be understood that the second chamber 210 forms a closed pressure-stable space, which helps to improve the test accuracy.

[0074] In other embodiments, please refer to Figure 1 A first overflow port 240 is also provided on the top of the second simulation chamber 200. The first overflow port 240 can be selectively connected to the second chamber 210. It can be understood that the first overflow port 240 can play an overflow role to improve the safety of the second simulation chamber 200. When the pressure in the second simulation chamber 200 exceeds the safety value, the pressure can be released through the first overflow port 240, thereby ensuring the safety of the second simulation chamber 200, which helps to improve the safety of the test device for measuring the drainage capacity of compressible fluids.

[0075] Alternatively, the first exhaust valve 230 is configured as a first overflow port 240 .

[0076] In other embodiments, please refer to Figure 1 A first isolation valve 510 is provided on the first pipeline 500. The first isolation valve 510 can play an isolation role so that the first pipeline 500 can be selectively internally conductive. It can be understood that the setting of the first isolation valve 510 allows flexible switching control of the first pipeline 500.

[0077] When the first isolation valve 510 is in a closed state, it can effectively isolate the fluid connection between the first chamber 110 and the second chamber 210, so that the first chamber 110 and the second chamber 210 can form two independent cavities, which helps the first chamber 110 and the second chamber 210 to input and output different media respectively, reducing the probability of interference between different media.

[0078] When the first isolation valve 510 is in the open state, the first pipeline 500 is internally conducted, so that the first chamber 110 and the second chamber 210 can be connected through the first pipeline 500 to form a connected chamber, so that the pressures of the first chamber 110 and the second chamber 210 are the same, thereby further ensuring the accuracy of the test.

[0079] As an example, the opening of the first isolation valve 510 is adjustable. By adjusting the opening of the first isolation valve 510, the fluid flow through the first pipeline 500 can be accurately controlled, thereby facilitating drainage capacity tests under different flow areas, thereby simulating drainage capacity tests under different blockage conditions in the pipeline, further improving the accuracy of the test.

[0080] A second drain port 120 is provided at the bottom of the first simulation chamber 100. It can be understood that the second drain port 120 can drain or inject water into the second simulation chamber 200, and setting the second drain port 120 at the bottom of the first simulation chamber 100 can reduce the flow resistance and mixing time of water in the chamber, thereby improving the water injection efficiency, and helping to ensure that the part of the first pipeline 500 connected to the first simulation chamber 100 is completely filled with water, reducing the probability of high-pressure gas affecting flow monitoring.

[0081] In addition, water can be discharged smoothly during drainage, reducing the chance of interference with high-pressure air, and using gravity to reduce the chance of drainage residue.

[0082] The second drain port 120 may be selectively connected to the first chamber 110. It is understandable that when the second drain port 120 is not connected to the first chamber 110, the first chamber 110 may form a closed space, thereby helping to improve the accuracy of the test.

[0083] In other embodiments, please refer to Figure 1 A first air supply valve 140 and a second air exhaust valve 150 are disposed on the top of the first simulation chamber 100 , and both the first air supply valve 140 and the second air exhaust valve 150 can be selectively connected to the first chamber 110 .

[0084] It is understandable that the first air supply valve 140 can input high-pressure air into the first simulation chamber 100. By precisely controlling the opening degree and duration of the first air supply valve 140, precise regulation of the gas pressure, flow and composition in the first simulation chamber 100 can be achieved.

[0085] The second exhaust valve 150 can properly exhaust the high-pressure gas in the first simulation chamber 100 to change the pressure in the first simulation chamber 100 , which helps to maintain a stable environment in the first simulation chamber 100 .

[0086] As an example, there are multiple second exhaust valves 150, which are all arranged at the top of the first simulation chamber 100. They are kept closed when the first simulation chamber 100 is inflated, so that the pressure in the simulated water chamber rises, and the opening or closing of the second exhaust valves 150 is controlled during the test to control the pressure in the first simulation chamber 100 to maintain at a set value during the test.

[0087] Among them, the equivalent exhaust flow rate of multiple second exhaust valves 150 needs to be greater than the gas production flow rate of the incompressible fluid produced by the power compartment 300. The opening time and number of the second exhaust valves 150 are controlled by a pressure control algorithm (such as PID) to achieve the purpose of quickly deflation and pressure reduction. When the pressure drops to the set value, it is quickly closed, so that the pressure is maintained in a smaller range near the test set value, thereby ensuring the accuracy of the test pressure.

[0088] As an example, controlling the opening time and amount of the second exhaust valve 150 by a pressure control algorithm (such as PID) includes the following steps.

[0089] First, the target pressure value is determined, which is the core reference of the entire control process. Then, through multiple tests and data analysis, the proportional coefficient (P), integral coefficient (I) and differential coefficient (D) of the PID algorithm are determined.

[0090] Furthermore, the difference between the liquid level difference and the flow meter is used as a proportional coefficient. The proportional coefficient is mainly used to quickly respond to pressure deviations. Its size determines the intensity of the control action, thereby reflecting the impact of pressure deviations on flow deviations.

[0091] The drainage flow rate of the volume flow meter is used as the integral coefficient. The integral coefficient is used to eliminate the steady-state error of the system. By integrating the pressure deviation over a period of time and adjusting the control quantity, the interference of the control quantity change on the drainage flow rate can be reduced.

[0092] The valve response delay is used as the differential coefficient, and the differential coefficient adjusts the control amount in advance according to the rate of change of the pressure deviation, thereby enhancing the stability and response speed of the system, reducing the response time of correcting the pressure deviation, and thus helping to improve the accuracy of pressure control.

[0093] The operation process of this solution is briefly described below. The pressure sensor and the second exhaust valve 150 are connected to a controller (such as a PLC or a single-chip microcomputer). The pressure sensor is responsible for real-time acquisition of pressure data in the first simulation chamber 100 and converting it into an electrical signal to transmit to the controller. The controller has a built-in PID algorithm program to calculate the control amount based on the received pressure signal.

[0094] The controller continuously reads the real-time pressure value transmitted by the pressure sensor and compares it with the preset target pressure value to determine the pressure deviation. According to the pressure deviation, the PID algorithm starts to work and determines the corresponding control output according to the preset proportional, integral and differential coefficients. The control output includes the opening time and quantity of the second exhaust valve 150.

[0095] In addition, if the current pressure is higher than the target pressure, the controller controls the second exhaust valve 150 to open according to the calculation result, and releases the gas in the chamber to reduce the pressure by adjusting the opening time and quantity; if the pressure is lower than the target pressure, the exhaust valve opening time is reduced or some exhaust valves are closed. In the control process, the control amount is also automatically adjusted according to the real-time pressure deviation and deviation change rate to ensure that the pressure is always stable near the target value.

[0096] The embodiment of the present application also discloses a method for eliminating test errors. Further, determining the pressure deviation includes: Determine the dynamic error of the volume flow meter, the level difference, the system error of the flow meter and the environmental error, correct the pressure deviation through the residual compensation algorithm, realize the correction of the input quantity of the fuzzy control (PID), compensate for the pipeline flow resistance loss and valve response delay, and further improve the response rate and control accuracy of the fuzzy control (PID).

[0097] The residual compensation algorithm includes generating the corresponding residual by subtracting the measured value from the theoretical value of each error, assigning a compensation coefficient to each residual, forming a residual grade table based on the size of historical residuals, determining the residual grade of the actual residual and dynamically adjusting the compensation coefficient.

[0098] The dynamic adjustment includes determining the historical memory decay rate according to the rate of change of the system response time at different time nodes, multiplying the historical memory decay rate by the compensation coefficient, and completing the dynamic adjustment of the compensation coefficient.

[0099] The pressure deviation is corrected according to the compensation coefficient, thereby reducing the error during the test.

[0100] In other embodiments, controlling the opening time and quantity of the second exhaust valve 150 through a pressure control algorithm also includes a dual closed-loop control system, including establishing a nonlinear control model of pressure-equivalent exhaust flow, and determining the opening time and quantity of the second exhaust valve 150 with a dual closed-loop control strategy.

[0101] This includes, in response to the test instruction, obtaining the pressure deviation as the first control parameter and the flow change rate as the second control parameter during the test, the pressure deviation is the pressure deviation in the first chamber 110, and the flow change rate is the flow change percentage of the volume flow meter; generating a first control signal according to the first control parameter, controlling the opening time and quantity of the second exhaust valve 150 according to the first control signal, and feeding back the second control parameter to generate a second control signal, and the second control signal replaces the first control signal for control.

[0102] The control process also includes, during the displacement test, controlling the on and off of the second exhaust valve 150 with a first control signal to obtain first stage test data; obtaining a second control parameter to generate a second control signal, controlling the on and off of the second exhaust valve 150 with the second control signal to obtain second stage test data.

[0103] The test results are obtained, including generating a verification range based on the first-stage test data, where the verification range is the percentage of the pressure deviation to the pressure value multiplied by the first-stage test data, and the interval is obtained by adding / subtracting the first-stage test data; when the second-stage test data falls within the verification range, the second-stage test data is verified to be true and used as the test result.

[0104] As an example, the equivalent exhaust flow refers to the exhaust effect when a plurality of second exhaust valves 150 work together to be equivalent to one exhaust valve, which helps to ensure the accuracy of pressure control, reduce errors, and ensure test safety.

[0105] As an example, the pressure control algorithm also includes a feedforward control part based on the equivalent exhaust flow. When it is detected that the equivalent exhaust flow has a tendency to rise rapidly, the valve opening is fine-tuned in advance to effectively suppress the excessive increase in flow, successfully avoiding excessive impact and influence on other system parameters, thereby achieving more refined and efficient control effects.

[0106] In other embodiments, please refer to Figure 1 The first simulation chamber 100 is provided with a first pressure detection mechanism 160 for detecting the pressure in the first chamber 110 .

[0107] It is understandable that the first pressure detection mechanism 160 can monitor the pressure changes in the first chamber 110 in real time, thereby facilitating precise control of the pressure conditions of the test and helping to improve the accuracy and reliability of the test.

[0108] In other embodiments, please refer to Figure 1 A second isolation valve 320 is provided between the power chamber 300 and the second simulation chamber 200 , and the second isolation valve 320 can selectively connect the first storage chamber 310 with the second chamber 210 .

[0109] It can be understood that the first storage chamber 310 and the second chamber 210 can be selectively connected through the second isolation valve 320, thereby controlling the flow of the medium in the first storage chamber 310 and the second chamber 210, making the connection between the power chamber 300 and the second simulation chamber 200 controllable, which helps to improve the accuracy of the test.

[0110] In other embodiments, please refer to Figure 1 and Figure 2 The test device for measuring the drainage capacity of a compressible fluid also includes a main control unit 600, a first sub-control unit 610 and a second sub-control unit 620. It can be understood that the main control unit 600 can play the role of controlling the test device for measuring the drainage capacity of a compressible fluid, and the first sub-control unit 610 and the second sub-control unit 620 can respectively play the role of controlling parts of the test device for measuring the drainage capacity of a compressible fluid.

[0111] As an example, the main control unit 600, as the core of the entire test device for measuring the drainage capacity of a compressible fluid, is responsible for receiving external instructions or operation requests, and sending control signals to each sub-control unit according to these instructions or requests, thereby realizing the centralized management of the entire test device for measuring the drainage capacity of a compressible fluid, and can play the role of centralizing data, which helps to reduce the difficulty of operation and improve operation efficiency.

[0112] The first sub-control unit 610 and the second sub-control unit 620 are respectively responsible for executing the control tasks of their respective connected devices, realizing decentralized control. Each sub-control unit only needs to focus on the device it is responsible for without having to process the complex logic of the entire system, thereby improving the response speed and stability of the system.

[0113] The overall control unit 600 is communicatively connected to the first sub-control unit 610 and the second sub-control unit 620 respectively, so that the first sub-control unit 610 and the second sub-control unit 620 can communicate with the overall control unit 600 respectively, thereby achieving highly automated control.

[0114] As an example, the main control unit 600 can automatically send control instructions to each sub-control unit according to a preset test process or condition, thereby realizing automatic monitoring and adjustment of the test process.

[0115] As an example, the main control unit 600 can be set as a host computer monitoring system, which refers to a computer or software system responsible for monitoring, managing and controlling the lower computer. It displays real-time data, alarm information and equipment status through a user interface (GUI). The operator can monitor the equipment operation through the host computer interface, and control and adjust parameters of the equipment.

[0116] The upper monitoring system communicates with the lower computer through various communication protocols (such as Modbus, Ethernet / IP, etc.) to obtain real-time data such as sensor data, equipment status, and operating parameters.

[0117] The first sub-control unit 610 and the second sub-control unit 620 are configured as a lower-machine monitoring module, which is suitable for being arranged in a lower-machine monitoring system and transmitting real-time data such as sensor data, equipment parameters and operating parameters through communication.

[0118] In this embodiment, the first sub-control unit 610 is communicatively connected with the second isolation valve 320 and the first exhaust valve 230. It can be understood that the first sub-control unit 610 can control the second isolation valve 320 and the first exhaust valve 230. The first sub-control unit 610 can be connected to the second isolation valve 320 and the first exhaust valve 230 via a cable, a network cable, WIFI or Bluetooth, and this application does not limit this.

[0119] The first sub-control unit 610 sends control signals to the second isolation valve 320 and the first exhaust valve 230 respectively, thereby driving the second isolation valve 320 and the first exhaust valve 230 to open and close respectively, thereby realizing automatic control, which helps to improve the test efficiency.

[0120] The second sub-control unit 620 is communicatively connected with the first isolation valve 510, the first air supply valve 140 and the second exhaust valve 150. It can be understood that the second sub-control unit 620 can control the first isolation valve 510, the first air supply valve 140 and the second exhaust valve 150. The second sub-control unit 620 is respectively connected to the first isolation valve 510, the first air supply valve 140 and the second exhaust valve 150 via cables, network cables, WIFI or Bluetooth, and this application does not limit this.

[0121] The second sub-control unit 620 sends control signals to the first isolation valve 510, the first air supply valve 140 and the second exhaust valve 150 respectively, thereby controlling the opening and closing of the first isolation valve 510, the first air supply valve 140 and the second exhaust valve 150 respectively, thereby further realizing automatic control.

[0122] In the above scheme, the communication connection between the main control unit 600 and each sub-control unit can monitor the status of each sub-control unit and the corresponding equipment in real time, realize further automated control, and help improve the accuracy of the test.

[0123] As an example, the first isolation valve 510 and the second isolation valve 320 can be constructed as electric valves, and the first air supply valve 140, the first exhaust valve 230, the second exhaust valve 150 and the first drain valve 220 can be constructed as solenoid valves. A solenoid valve refers to a valve that is controlled by electromagnetic effect and is mainly controlled by a relay to open and close the valve internally.

[0124] As an example, an electric valve is a valve that is driven by an electric motor and converts the high-speed rotational motion of the electric motor into linear motion or rotational motion of the valve stem through a reduction mechanism, thereby driving the valve core to control the opening and closing of the valve.

[0125] Electric valves are usually equipped with control circuits and position sensors to achieve precise control of valve opening and position feedback.

[0126] In a specific embodiment, please refer to Figure 1 The flow monitoring mechanism 400 is constructed as a volume flow meter. It can be understood that the volume flow meter includes but is not limited to a rotary flow meter, a piston flow meter, a scraper flow meter, a membrane flow meter and a throttling flow meter, and the present application does not limit this.

[0127] The first simulation chamber 100 is connected to a pressurizing system, which is connected to the first simulation chamber 100 via a first air supply valve 140 , and the pressurizing system is configured to provide high-pressure air.

[0128] A muffler is provided at the outlet of the second exhaust valve 150 , and the muffler is used to reduce the noise generated by the circulation of high-pressure gas when the second exhaust valve 150 is working.

[0129] When the first simulation chamber 100 is in the test and the pressure needs to be adjusted, due to the high pressure in the first simulation chamber 100, the second exhaust valve 150 is prone to generate strong exhaust noise when exhausting, and the high-frequency sound waves contained in the exhaust noise may impact other test equipment, thereby causing vibration of other equipment, thereby affecting the test accuracy. A muffler is set at the outlet of the second exhaust valve 150 to reduce the noise during the test and help improve the test accuracy.

[0130] When the first simulation chamber 100 is in the test preparation stage and after the test, the muffler at the outlet of the second exhaust valve 150 can reduce the exhaust noise and reduce the impact of the noise on the test.

[0131] The second simulation chamber 200 is provided with a second pressure detection mechanism for detecting the pressure in the second chamber 210 . Both the first pressure detection mechanism 160 and the second pressure detection mechanism can be constructed as a pressure gauge for detecting the pressure inside the first simulation chamber 100 or the second simulation chamber 200 .

[0132] The second isolation valve 320 is configured as a check valve. A check valve is a valve whose opening and closing member is a circular valve disc and which relies on its own weight and medium pressure to produce a movement to block the backflow of the medium. It can only allow the medium to flow in one direction and prevent it from flowing in the opposite direction.

[0133] The check valve prevents water or compressible fluid from flowing back into the power chamber 300 , thereby improving the reliability of the test device for measuring the drainage capacity of the compressible fluid.

[0134] The first simulation chamber 100 is provided with a first liquid level gauge 170, which is used to detect the liquid level height in the first chamber 110. The first liquid level gauge 170 is communicatively connected with the first sub-control unit 610, which helps to accurately monitor the liquid level changes in the first chamber 110 during the test, thereby obtaining more accurate test results.

[0135] The second simulation chamber 200 is provided with a second liquid level gauge 250, which is used to detect the liquid level height in the second chamber 210. The second liquid level gauge 250 is communicatively connected with the first sub-control unit 610, which helps to accurately monitor the liquid level changes in the second chamber 210 before and after the start of the test, so as to obtain more accurate test results.

[0136] The liquid level changes of the first liquid level gauge 170 and the second liquid level gauge 250 can be compared, and the changes before and after the test should be consistent, so as to obtain a more accurate displacement result.

[0137] That is to say, this solution can also determine the error of the test process by comparing the measurement results of the first liquid level meter 170 and the second liquid level meter 250, that is, by comparing the measurement results of the first liquid level meter 170 and the second liquid level meter 250, the measurement results of the flow monitoring mechanism 400 can be corrected.

[0138] The first simulation chamber 100 and the second simulation chamber 200 are both constructed as chambers with pressure bearing capacity. The pressure bearing capacity refers to the maximum pressure that the chamber can withstand without being damaged or deformed when subjected to internal pressure, such as a chamber with a pressure bearing capacity of 4 MPa.

[0139] The first pipeline 500 is constructed as a pipeline with pressure bearing capacity, such as a pipeline with a pressure bearing capacity of 4 MPa.

[0140] Please refer to Figure 1 , Figure 2 and Figure 3 , the following briefly describes the test process of the test device for measuring the drainage capacity of compressible fluid.

[0141] S1. Fill water into the second simulation chamber 200, close the first isolation valve 510, open the first drain valve 220 and the first exhaust valve 230, and fill water into the second simulation chamber 200 through the first drain valve 220. After observing that water overflows from the first exhaust valve 230, ensure that the second simulation chamber 200 is full of water, stop filling water, and close the first drain valve 220 and the first exhaust valve 230.

[0142] S2. Fill water into the first simulation chamber 100, open the second drain port 120 and the second exhaust valve 150, observe the height of the liquid level gauge, and fill water into the first simulation chamber 100 through the second drain port 120. When the liquid level is below the highest point of the first pipeline 500, stop filling water, and close the second drain port 120 and the second exhaust valve 150.

[0143] S3. Pressurize the first simulation chamber 100, open the first air supply valve 140, and introduce compressed air into the first simulation chamber 100 through the external pressurization system. The pressure continues to increase, and the pressure inside the first simulation chamber 100 is measured by the first pressure detection mechanism 160 on the top of the first simulation chamber 100. The first sub-control unit 610 monitors the first simulation chamber 100 and stops injecting compressed air when the required pressure is met.

[0144] S4. Open the first isolation valve 510 to connect the water in the second simulation chamber 200 and the water in the first simulation chamber 100, so that the pressures are equal and the test preparation is completed.

[0145] S5. During the test, the compressible fluid continuously enters the second simulation chamber 200, causing the pressure of the second simulation chamber 200 to rise. The water in the second simulation chamber 200 is pressed into the first simulation chamber 100 through the first bottom pipeline 500. The water level in the first simulation chamber 100 rises, compressing the upper gas to increase the gas pressure. The opening or closing of the second exhaust valve 150 is controlled, and the simulated drainage pressure of the first simulation chamber 100 during the test can be controlled.

[0146] S6. Through the first liquid level meter 170, the second liquid level meter 250 and the flow monitoring mechanism 400, the total drainage volume, average drainage volume and real-time drainage flow of the power compartment 300 under the set drainage pressure condition can be obtained.

[0147] By pressurizing the first simulation chamber 100 to different pressures and then conducting drainage tests, it is possible to quantitatively test the drainage capacity under different media and pressure conditions on land, and determine the drainage capacity for quantitative control in actual ship use.

[0148] In addition, when the control methods in other embodiments are applied to step S5 in this embodiment, the main control unit 600 obtains the collected data of the first sub-control unit 610 and the second sub-control unit 620, and cyclically controls the second exhaust valve 150 according to the above control method, and controls the second exhaust valve 150 in turn according to the above first control signal and the second control signal. At the same time, the main control unit 600 processes the continuously acquired collected data according to the above error reduction method to achieve closed-loop feedback.

[0149] In a third aspect, an embodiment of the present application provides a system that can implement the method for reducing the test error of any of the above embodiments. The system includes a controller and a memory. The memory stores a program. When the program is executed by the controller, the method for reducing the test error of any of the above embodiments is implemented. Specifically, when the controller runs the program stored in the memory, the following steps can be implemented: 1. In step S5, when it is detected that the equivalent exhaust flow rate has a tendency to rise rapidly, the valve opening is fine-tuned in advance to effectively suppress the excessive increase of the flow rate, successfully avoid excessive impact and influence on other system parameters, and thus achieve a more precise and efficient control effect.

[0150] 2. In step S5, after the upper computer monitoring station obtains the data of the flow meter and the liquid level meter and the pressure data of the pressure detector, it determines the dynamic error of the volume flow meter, the liquid level difference, the system error of the flow meter and the environmental error; The corresponding residual is generated by subtracting the measured value from the theoretical value of each error, and a compensation coefficient is assigned to each residual. The residual grade table is formed according to the size of the historical residuals, and the residual grade and corresponding compensation coefficient of the actual residual are determined; The historical memory decay rate is determined according to the change rate of the system response time at different time nodes, and the historical memory decay rate is multiplied by the compensation coefficient to complete the dynamic adjustment; Correct the pressure deviation according to the compensation factor.

[0151] 3. Determine the PID coefficient of fuzzy control, and use the difference between the liquid level difference and the flow meter as the proportional coefficient. The proportional coefficient is mainly used to quickly respond to pressure deviations. Its size determines the intensity of the control action, thereby reflecting the impact of pressure deviations on flow deviations.

[0152] The drainage flow rate of the volume flow meter is used as the integral coefficient. The integral coefficient is used to eliminate the steady-state error of the system. By integrating the pressure deviation over a period of time and adjusting the control quantity, the interference of the control quantity change on the drainage flow rate can be reduced.

[0153] The valve response delay is used as the differential coefficient, and the differential coefficient adjusts the control amount in advance according to the rate of change of the pressure deviation, thereby enhancing the stability and response speed of the system, reducing the response time of correcting the pressure deviation, and thus helping to improve the accuracy of pressure control.

[0154] 4. Establish a nonlinear control model of pressure-equivalent exhaust flow, and determine the opening time and quantity of the second exhaust valve 150 with a double closed-loop control strategy. This includes: in response to the test instruction, during the test process, obtain the pressure deviation as the first control parameter, and the flow rate change rate as the second control parameter, the pressure deviation is the pressure deviation in the simulated water tank, and the flow rate change rate is the flow change percentage of the volume flow meter; generate a first control signal according to the first control parameter, control the opening time and quantity of the second exhaust valve 150 according to the first control signal, and feed back the second control parameter at this time to generate a second control signal, and the second control signal replaces the first control signal for control, so as to further reduce the flow error caused by the pressure error, and generate a larger adjustment error according to the wrong flow error to affect the experimental process.

[0155] 5. The upper computer monitoring station sends the control result to the lower computer monitoring module, and the lower computer monitoring module controls the opening number and time of the second exhaust valve 150 according to the control result.

[0156] As an example, the present invention can be optimized using methods such as double closed-loop control, PID fuzzy control, neural network control, prediction model, machine learning model, etc., which are not given one by one in this application.

[0157] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0158] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0159] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

[0160] Although the embodiments of the present application have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A test device for measuring the drainage capacity of a compressible fluid, characterized in that: include: A first simulation chamber, comprising a first chamber, wherein the first chamber contains high-pressure air; A second simulation chamber, comprising a second chamber filled with water, wherein the second chamber is selectively connected to the first chamber through a first pipeline; A power chamber, wherein a first storage chamber for storing compressible fluid is provided in the power chamber, and the first storage chamber is selectively connected to the second chamber; A flow monitoring mechanism is disposed in the first pipeline, and is suitable for detecting the amount of water flowing from the second chamber into the first chamber when the compressible fluid in the first storage chamber continuously enters the second chamber.

2. The test device for measuring the drainage capacity of a compressible fluid according to claim 1, characterized in that: The first pipeline is connected to the bottom of the first simulation chamber and the bottom of the second simulation chamber.

3. The test device for measuring the drainage capacity of a compressible fluid according to claim 2, characterized in that: When the second chamber is filled with water and the first chamber is not connected to the second chamber, water is stored in the first chamber, and the height of the water level in the first chamber is not lower than the height of the first pipeline.

4. The test device for measuring the drainage capacity of a compressible fluid according to claim 1, characterized in that: The compressible fluid includes at least one of carbon dioxide, nitrogen and air.

5. The test device for measuring the drainage capacity of a compressible fluid according to claim 1, characterized in that: A first drain valve is disposed at the bottom of the second simulation chamber, and a first exhaust valve is disposed at the top of the second simulation chamber. Both the first drain valve and the first exhaust valve can be selectively communicated with the second chamber.

6. The test device for measuring the drainage capacity of a compressible fluid according to claim 5, characterized in that: The top of the second simulation chamber is also provided with a first overflow port, and the first overflow port can be selectively communicated with the second chamber.

7. The test device for measuring the drainage capacity of a compressible fluid according to claim 6, characterized in that: The first exhaust valve is designed as the first overflow opening.

8. The test device for measuring the drainage capacity of a compressible fluid according to claim 6, characterized in that: The first pipeline is provided with a first isolation valve, and the bottom of the first simulation chamber is provided with a second drain port, which can be selectively communicated with the first chamber.

9. The test device for measuring the drainage capacity of a compressible fluid according to claim 8, characterized in that: A first air supply valve and a second air exhaust valve are disposed on the top of the first simulation chamber, and both the first air supply valve and the first air exhaust valve can be selectively communicated with the first chamber.

10. The test device for measuring the drainage capacity of a compressible fluid according to claim 9, characterized in that: The first simulation chamber is provided with a first pressure detection mechanism for detecting the pressure in the first chamber.

11. The test device for measuring the drainage capacity of a compressible fluid according to claim 10, characterized in that: A second isolation valve is provided between the power chamber and the second simulation chamber, and the second isolation valve can selectively connect the first storage chamber with the second chamber.

12. The test device for measuring the drainage capacity of a compressible fluid according to claim 11, characterized in that: The test device for measuring the drainage capacity of a compressible fluid further comprises a general control unit, a first sub-control unit and a second sub-control unit, wherein the general control unit is communicatively connected with the first sub-control unit and the second sub-control unit respectively; The first sub-control unit is communicatively connected with the second isolation valve and the first exhaust valve, and the second sub-control unit is communicatively connected with the first isolation valve, the first air supply valve, and the second exhaust valve.

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