An apparatus for high-speed conversion and utilization of energy in a transcritical process

Abstract

The present invention provides a device for high-speed energy conversion and utilization in a transcritical process, which includes a starter, a latch body, an outer cylinder of the medicine chamber, a working medium medicine chamber, a middle transition section, and an outlet section. The starter provides initial energy through a starter cable to start the heating element in the working medium medicine chamber. The heat released by the heating element can rapidly heat and excite the fluid working medium filled in the working medium medicine chamber, causing the pressure in the working medium medicine chamber to rise sharply in a short time and quickly reach the critical or supercritical state from the subcritical state. If the pressure reaches the limit pressure value that the diaphragm at the top of the working medium medicine chamber can withstand, the diaphragm will rupture rapidly, and the fluid working medium in the working medium medicine chamber can be directly and rapidly vaporized from the critical or supercritical state. After passing through the outer cylinder of the medicine chamber and the middle transition section in sequence, a detonation can be formed in the outlet section for high-speed energy conversion applications such as impact, throwing, detonation, and truncation.

Description

Technical Field

[0001] The present invention belongs to the technical field of fluid pressurization and high-speed energy conversion applications, and relates to a device for high-speed energy conversion and utilization in a transcritical process. The device realizes high-speed energy conversion applications by rapidly pressurizing the working medium through state changes. Specifically, it utilizes the fact that after absorbing energy, the working medium can rapidly reach the critical or supercritical state from the subcritical state, thereby sharply increasing the pressure and temperature. Then, through rapid gasification under reduced pressure, a detonation shock process can occur in a limited-volume channel, and it can be reused by refilling the working medium. It can be widely applied to emergency application scenarios of high-speed energy conversion such as pressurization, impact, throwing, detonation, etc. Background Art

[0002] In some application scenarios, such as pressurization, impact, throwing, high-speed energy conversion, detonation, truncation, etc., there are often special requirements for time, especially in emergency situations, where a very fast response speed and a very fast execution process are needed. Moreover, application scenarios such as impact, throwing, high-speed energy conversion, detonation, truncation, etc. are based on high-speed pressurization in many cases. If the fluid is pressurized by means of a pressure pump, etc., it will be too late in terms of time. If pressurization is carried out in the same way as traditional gunpowder explosion, although it is in time in terms of time, it is likely to cause excessive damage and is also very dangerous.

[0003] Substances generally exist in three states: gas phase, liquid phase, and solid phase. The point where the three phases coexist in equilibrium is called the triple point. The point where the liquid and gas phases coexist in equilibrium is called the critical point. The temperature and pressure at the critical point are called the critical temperature and critical pressure respectively. The state above the critical temperature and critical pressure is called the supercritical state, and at this time, the properties of the gas and liquid phases are very close. Different substances require different pressures and temperatures to reach the critical point. In terms of common working media used to rapidly change from liquid state to high-pressure critical or supercritical state by absorbing energy, water, carbon dioxide, nitrogen, other common substances, or their mixtures can be selected for different application scenarios.

[0004] Other typical technical ways of pressurization include: the pressurization method of traditional gunpowder explosion and the pressurization method of a pressure pump. The pressurization method of traditional gunpowder explosion is not safe, and all use chemical drugs, making it difficult to meet the environmental protection requirements. The pressurization method of a pressure pump generally uses various types of pressure pumps, such as gear pumps, positive displacement pumps, piston pumps, etc. If it is necessary to complete the pressurization and application process within one second or even about ten milliseconds, these various types of pumps are difficult to achieve. However, if the change process of the working medium from subcritical to critical or supercritical state is utilized, the pressurization and application process can be completed within one second. Moreover, by controlling the energy absorption amount of the working medium, the required pressure and temperature values can be controlled.

[0005] In addition, Patent CN111256531B and Patent CN111288842A cannot achieve rapid diaphragm replacement. Their structures make the diaphragm replacement process cumbersome and time-consuming (requiring disassembly and reinstallation of the pipe body structure), resulting in the inability of their systems to operate flexibly and at high frequencies. Patent CN113883958A, on the other hand, cannot achieve precise control of the working fluid filling volume. Summary of the Invention

[0006] (I) Objectives of the Invention

[0007] Aiming at the defects and deficiencies in safety or pressurization ability during existing rapid pressurization and impact applications, the objective of the present invention is to provide a device for high-speed conversion and utilization of energy in a transcritical process. By using the method that a fluid working fluid can easily enter the critical or supercritical state after absorbing energy, rapid pressurization and temperature increase can be achieved, and the pressurization and application processes can be completed in a short time. Moreover, by controlling the energy absorption amount of the working fluid, the required pressure and temperature values can be controlled, overcoming the defects and deficiencies in aspects such as safety, pressurization ability, response speed, or environmental performance in the prior art. Additionally, it can be reused by refilling the working fluid and can be widely applied to scenarios such as impact, throwing, high-speed energy conversion, detonation, and truncation.

[0008] (II) Technical Solutions

[0009] The present invention adopts the following technical solutions to achieve its technical objectives:

[0010] A device for high-speed conversion and utilization of energy in a transcritical process, comprising a starter, a latch body, an outer chamber of the medicine, a working fluid chamber, a middle transition section, and an outlet section, characterized in that:

[0011] The outer chamber of the medicine, the middle transition section, and the outlet section are all hollow cylindrical barrel structures with openings at both ends, and the outer chamber of the medicine, the middle transition section, and the outlet section are coaxially fixedly connected in sequence;

[0012] The working fluid chamber is integrally in the shape of a hollow cylindrical barrel structure and is coaxially arranged inside the outer chamber of the medicine, and the shape and size of the outer peripheral surface of the working fluid chamber are adapted to the inner peripheral surface of the outer chamber of the medicine; the top of the working fluid chamber is closed by a diaphragm, and the bottom is closed by a chamber base of the medicine. The cavity is filled with a fluid working fluid, and a columnar heating element extending into the cavity is provided on the chamber base of the working fluid chamber; the working fluid chamber can be refilled with the working fluid after the working fluid is used up and can be reused repeatedly;

[0013] The latch body is fixedly arranged at the bottom opening of the outer cylinder of the medicine chamber to close the bottom opening of the outer cylinder of the medicine chamber, and its top surface abuts against the medicine chamber base of the working medium medicine chamber; a terminal post is fixedly arranged on the latch body, one end of the terminal post is connected to the starter through a starter cable, and the other end is connected to a columnar heating element on the medicine chamber base.

[0014] In the transcritical process energy high-speed conversion and utilization device of the present invention, the starter provides initial energy through a starter cable to start the heating element in the working medium medicine chamber. The heat released by the heating element can rapidly heat and excite the fluid working medium filled in the working medium medicine chamber, so that the pressure in the working medium medicine chamber rapidly increases within a short time to reach the critical or supercritical state. If the pressure reaches the limit pressure value that the diaphragm at the top of the working medium medicine chamber can withstand, the diaphragm will rapidly rupture, and the fluid working medium in the working medium medicine chamber can be directly and rapidly vaporized from the critical or supercritical state. After passing through the outer cylinder of the medicine chamber and the middle transition section in sequence, a detonation can be formed in the outlet section for high-speed energy conversion applications such as impact or throwing.

[0015] In the transcritical process energy high-speed conversion and utilization device of the present invention, a terminal post is fixed on the latch body. One end of the terminal post is connected to the starter through a starter cable, and the other end is connected to the medicine chamber base of the working medium medicine chamber; one end of the outer cylinder of the medicine chamber is tightly plugged by the latch body, the other end is connected to the middle transition section, the working medium medicine chamber is placed inside the outer cylinder of the medicine chamber, and its end face is in contact with the latch body; the other end of the middle transition section is connected to the outlet section.

[0016] In the transcritical process energy high-speed conversion and utilization device of the present invention, the initial energy provided by the starter through the starter cable is electrical energy. Electrical energy is stored in the starter, and the electrical energy can be stored in the starter in the form of a capacitor, an inductor, a battery, or a combination thereof. The starter can control and adjust the amount of energy provided as needed.

[0017] Preferably, the columnar heating element is a metal wire, a metal rod, or a chemical medicine column. The heating element in the working medium medicine chamber includes, but is not limited to, two types. One type of heating element is a metal wire or a metal rod (i.e., heating element B), and the energy released by it all comes from the starter. This method can be used when the application purpose is pressure boosting, impact, detonation, etc. Another type of heating element is a chemical medicine column (i.e., heating element B), and the energy received from the starter is used to start the combustion of the chemical medicine column, and the energy released by it mainly comes from its own combustion. This method can be used when the application purpose is throwing, impact, detonation, etc.

[0018] Preferably, the inner channel of the middle transition section is a converging-diverging surface channel or a straight-through surface channel. The inner channel of the middle transition section can be various surface types, including, but not limited to, a converging-diverging surface channel, a straight-through surface channel, and so on.

[0019] Preferably, filling channels and discharging channels are formed in the base of the working medium chamber. The tops of the filling channels and discharging channels are both communicated with the cavity of the base of the working medium chamber. At the bottom ends, a filling sealing bolt and a discharging sealing bolt that can be rotated to the top of the channels are respectively arranged. Bypass pipes detachably connected to external filling pipelines and discharging pipelines are respectively arranged in the middle parts of the filling channels and discharging channels. And filling valves and discharging valves are respectively arranged on the filling pipelines and discharging pipelines.

[0020] Further, before the working medium chamber is placed into the outer cylinder of the working medium chamber, screw out the filling sealing bolt by a certain length to communicate the filling pipeline with the filling channel. Then open the filling valve, and the liquid fluid working medium enters the working medium chamber through the filling pipeline and the filling channel, and the filling amount is controlled according to the corresponding relationship between the liquid fluid working medium and the pressurization degree.

[0021] Further, when the filling amount of the liquid fluid working medium in the working medium chamber exceeds the set amount, screw out the discharging sealing bolt by a certain length to communicate the discharging pipeline with the discharging channel. Then open the discharging valve, and the excess liquid fluid working medium flows out of the working medium chamber through the discharging channel and the discharging pipeline.

[0022] In the transcritical process energy high-speed conversion and utilization device of the present invention, before the working medium chamber is placed into the outer cylinder of the working medium chamber, the working medium in the working medium chamber should be filled into the working medium chamber through devices such as filling valves and discharging valves and sealed. The working medium in the working medium chamber can be water, carbon dioxide, nitrogen, can be other common substances, or a mixture of various common substances.

[0023] Further, the filling amount of the working medium is accurately controlled and ensured by weighing the weight difference of the working medium chamber before and after filling the fluid working medium with a mass weighing instrument.

[0024] Preferably, the wall material of the working medium chamber is high-strength structural steel, which meets the design criteria of high-pressure vessels and can withstand the dynamic loading of the working medium pressure in the working medium chamber at a pressure level of 400 MPa for no more than 0.4 seconds.

[0025] Preferably, the wall material of the outer cylinder of the working medium chamber is high-strength structural steel, which meets the design criteria of high-pressure vessels and can withstand the dynamic pressure loading at a pressure level of 300 MPa for no more than 0.5 seconds.

[0026] Preferably, the fluid working medium in the working medium chamber is selected from common substances including but not limited to water, nitrogen, carbon dioxide, etc., and has both environmental protection and economy.

[0027] Preferably, a pressure sensor for the outer cylinder of the medicine chamber is installed on the inner wall of the outer cylinder of the medicine chamber near one end of the middle transition section, and a pressure sensor at the starting position of the outlet section is installed on the inner wall of the outlet section near one end of the middle transition section. The operating frequency of both should be at least above 1000 Hz. Before and after the middle transition section, a pressure sensor for the outer cylinder of the medicine chamber and a pressure sensor at the starting position of the outlet section are respectively arranged. The purpose is to monitor the pressure drop of the middle transition section for the selection of the heating element and the optimization of other important structural dimension parameters.

[0028] (III) Technical Effects

[0029] Compared with the prior art, the transcritical process energy high-speed conversion and utilization device of the present invention has the following remarkable technical advantages: (1) In terms of compressing and pressurizing liquid and gas working media and then utilizing them, compared with the prior art, the present invention is safer than the prior art of using traditional gunpowder explosion to increase pressure and then impact / throwing and other utilization methods, and is faster than the prior art of using traditional booster pumps to increase pressure and then utilize. (2) The present invention utilizes the critical or supercritical state change process of the working medium, and can complete the pressurization and application processes in a short time. And by controlling the energy absorption amount of the working medium, the required pressure and temperature values can be controlled. (3) The working medium can be pre-injected, and multiple working medium medicine chambers are reserved for standby to achieve high-frequency use. (4) The working medium medicine chamber can be reused. (5) The mass of the working medium can be accurately injected. Description of the Drawings

[0030] Figure 1 It is a component diagram of the transcritical process energy high-speed conversion and utilization device of the present invention;

[0031] Figure 2 It is a structural diagram of the working medium medicine chamber of the present invention;

[0032] Figure 3 It is an internal profile diagram of the middle transition section of the present invention;

[0033] Description of the Reference Numerals in the Drawings:

[0034] 1. Terminal; 2. Bolt body; 3. Outer cylinder of the medicine chamber; 4. Working medium medicine chamber; 5. Middle transition section; 6. Outlet section; 7. Pressure sensor at the starting position of the outlet section; 8. Pressure sensor for the outer cylinder of the medicine chamber; 9. Starter cable; 10. Starter.

[0035] 401. Filling valve; 402. Filling seal bolt; 403. Filling pipeline; 404. Filling channel; 405. Heating element A; 406. Diaphragm; 407. Diaphragm pressing plug; 408. Diaphragm support; 409. Working medium in the working medium medicine chamber; 410. Heating element B; 411. Discharge channel; 412. Discharge pipeline; 413. Discharge seal bolt; 414. Discharge valve; 415. Medicine chamber base.

[0036] 501, expansion profile channel; 502, straight profile channel. DETAILED DESCRIPTION

[0037] In order to better understand the present invention, the content of the present invention is further explained below in conjunction with the embodiments, so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the following is only a preferred embodiment of the present invention, but the content of the present invention is not limited to the following embodiments. In fact, various modifications and changes can be made in the present invention without departing from the scope or spirit of the present invention, which will be apparent to those skilled in the art. For example, the features shown or described as a part of an embodiment can be used together with another embodiment to produce another embodiment. Therefore, it is intended that the present invention includes such modifications and changes within the scope of the appended claims and their equivalents.

[0038] The transcritical process energy high-speed conversion and utilization device of the present invention is as follows: Figure 1 As shown, it is mainly composed of a starter 10, a latch body 2, a chamber outer cylinder 3, a working fluid chamber 4, a middle transition section 5, an outlet section 6 and other components. The chamber outer cylinder 3, the middle transition section 5 and the outlet section 6 are all hollow cylindrical structures with openings at both ends. The chamber outer cylinder 3, the middle transition section 5 and the outlet section 6 are coaxially fixedly connected in sequence, and the inner diameters of the three are reduced in sequence. The working fluid chamber 4, as shown Figure 1 , 2 As shown, the overall structure is a hollow cylindrical cylinder structure, and is coaxially arranged in the outer cylinder 3 of the medicine chamber, and the shape and size of the outer circumference of the working fluid chamber 4 are adapted to the inner circumference of the outer cylinder 3 of the medicine chamber; the top of the working fluid chamber 4 is closed by a diaphragm 406, and the bottom is closed by a chamber base 415, the cavity is filled with fluid working fluid, and the chamber base 415 of the working fluid chamber 4 is provided with a columnar heating element extending into the cavity; the latch body 2 is fixedly arranged at the bottom opening of the outer cylinder 3 of the medicine chamber to close the bottom opening of the outer cylinder 3 of the medicine chamber, and its top surface is in contact with the chamber base 415 of the working fluid chamber 4; a terminal post 1 is fixedly arranged on the latch body 2, one end of the terminal post 1 is connected to the starter 10 through the starter cable 9, and the other end is connected to the columnar heating element on the chamber base 415.

[0039] More specifically, in the cross-critical process energy high-speed conversion and utilization device of the present invention, a terminal 1 is fixed on the latch body 2. One end of the terminal 1 is connected to the starter 10 through the starter cable 9, and the other end is connected to the chamber base 415 of the working fluid chamber 4. One end of the outer cylinder 3 of the working fluid chamber is tightly plugged by the latch body 2, and the other end is connected to the middle transition section 5. The working fluid chamber 4 is placed inside the outer cylinder 3 of the working fluid chamber, and its end face is in contact with the latch body 2. The other end of the middle transition section 5 is connected to the outlet section 6. Considering that carbon dioxide is relatively easy to be compressed into a liquid state and relatively easy to enter the critical and supercritical states, the working fluid selected in this example is carbon dioxide. At the same time, this example is applied to detonation. On the chamber base 415 of the working fluid chamber 4, the method of installing a chemical charge column can be adopted, that is, installing the heating element B410. In this example, the heating element A405 can not be installed.

[0040] Before the working fluid chamber 4 is placed inside the outer cylinder 3 of the working fluid chamber, the working fluid carbon dioxide is first filled into the working fluid chamber 4 through the filling valve 401 and sealed to maintain the subcritical state. The following combines Figure 2 to illustrate the process of working fluid filling. As Figure 2 shown, first place the diaphragm 406 on the diaphragm support 408 inside the working fluid chamber 4, and then press the diaphragm 406 with the diaphragm pressing plug 407. The chamber base 415 is provided with a filling passage 404. When the filling and sealing bolt 402 is screwed out a certain length, the filling pipeline 403 can communicate with the filling passage 404. Open the filling valve 401, and the liquid carbon dioxide can flow through this valve and then pass through the filling pipeline 403 and the communicating filling passage 404 into the working fluid chamber 4. The filling amount of the working fluid carbon dioxide can be controlled according to its corresponding relationship with the pressurization degree. At the same time, the discharge and sealing bolt 413 can be screwed out a certain length, so that the discharge pipeline 412 can communicate with the discharge passage 411 on the chamber base 415. When the working fluid filled in the working fluid chamber 4 is too much, open the discharge valve 414, and the working fluid can flow out of the working fluid chamber 4 through the discharge passage 411, the discharge pipeline 412, and the discharge valve 414 in sequence. When the working fluid 409 in the working fluid chamber meets the filling requirements, first tighten the filling and sealing bolt 402 and the discharge and sealing bolt 413, screw these two bolts into the chamber base 415, and then screw the filling pipeline 403 and the discharge pipeline 412 out of the chamber base 415. In this way, the working fluid filling process is completed. By using a high-precision electronic scale to weigh the weight of the working fluid chamber before and after filling the working fluid, the filling amount of the working fluid is accurately controlled and guaranteed. The difference between the weighed weights is the mass of the filled working fluid.

[0041] Therefore, the outer shape of the working fluid chamber 4 becomes a cylindrical object. Since there are no protrusions on its base and cylindrical wall surface, it can be placed entirely inside the outer cylinder 3 of the working fluid chamber, and the chamber base 415 is in contact with one end face of the latch body 2. In addition, the inner channel of the middle transition section 5 can be of various profiles, such as Figure 3As shown in the figure, considering the control of the detonation velocity in this example to achieve a more appropriate velocity within a shorter distance as much as possible, the converging-diverging surface channel 501 selected in this example is Figure 3 the converging-diverging surface channel 501 in Figure 3 , and it is a smooth arc surface, that is, the Laval channel surface. Before and after the converging-diverging surface channel 501, an external chamber pressure sensor 8 and an inlet position pressure sensor 7 of the outlet section are arranged respectively to monitor the pressure drop of the converging-diverging surface channel 501 for reference when selecting the chemical charge. The outlet section 6 is a two-meter-long round tube made of high-strength structural steel. The materials of the external chamber 3 and the working medium chamber 4 are also selected as high-strength structural steel.

[0042] Then, the application process of high-speed energy conversion such as pressurization and detonation can be implemented:

[0043] The starter 10 charges the capacitor inside it through the battery inside itself and is fully charged within one minute. Then, the starter 10 transfers the electric energy charged in the capacitor to the chemical charge heating element B410 in the working medium chamber 4 through the starter cable 9 within 0.1 second. The heating element B is quickly triggered to burn, and the burning accelerates continuously. The released heat rapidly heats and excites the working medium 409 filled in the working medium chamber. In this example, it is carbon dioxide, so that the pressure in the working medium chamber 4 rises sharply in a short time, quickly crosses the critical state, and reaches the supercritical state. When the pressure reaches the limit pressure of 300 MPa that the diaphragm 406 can withstand, the diaphragm ruptures. The working medium 409 in the working medium chamber directly vaporizes rapidly from the supercritical state, passes through the smooth converging-diverging channel of the middle transition section 5, and forms a detonation at the outlet section 6. The impact velocity at the outlet can reach 500 m / s (if it is necessary to further increase the outlet velocity, a heating element B with stronger heating ability can be used). Thus, the function of the device of the present invention is realized.

[0044] Through the above embodiments, the purpose of the present invention is completely and effectively realized. All equivalent or simple changes made according to the structure, features and principles described in the inventive concept of the present invention are included in the protection scope of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of the present invention or exceed the scope defined by this claim book, they should all belong to the protection scope of the present invention.

[0045] The parts not elaborated in detail in the present invention belong to the well-known technologies of those skilled in the art.

Claims

1. A device for high-speed conversion and utilization of transcritical process energy, comprising a starter, a latch body, a chamber outer cylinder, a working fluid chamber, a middle transition section, and an outlet section, characterized in that: The outer cylinder of the medicine chamber, the middle transition section, and the outlet section are all hollow cylindrical structures with openings at both ends, and the outer cylinder of the medicine chamber, the middle transition section, and the outlet section are coaxially fixedly connected in sequence; The working fluid chamber is a hollow cylindrical structure as a whole, and is coaxially arranged in the outer cylinder of the chamber, and the shape and size of the peripheral surface of the working fluid chamber are adapted to the inner peripheral surface of the outer cylinder of the chamber; the top of the working fluid chamber is closed by a diaphragm, and the bottom is closed by a chamber base, the cavity is filled with fluid working fluid, and a columnar heating element extending into the cavity is provided on the chamber base of the working fluid chamber; The latch body is fixedly arranged at the bottom opening of the outer cylinder of the chamber, and is used to close the bottom opening of the outer cylinder of the chamber, and its top surface abuts against the chamber base of the working fluid chamber; a terminal post is fixedly arranged on the latch body, one end of the terminal post is connected to the starter through a starter cable, and the other end is connected to the columnar heating element on the chamber base; The columnar heating element is a metal wire, a metal rod or a chemical column; The inner channel of the middle transition section is a convergent-divergent profile channel or a straight profile channel.

2. The high-speed energy conversion and utilization device for transcritical processes according to claim 1, wherein A filling channel and a discharge channel are provided on the chamber base, the top ends of the filling channel and the discharge channel are connected to the cavity of the chamber base, and the bottom ends are respectively provided with filling sealing bolts and discharge sealing bolts that can be screwed to the top of the channel. The middle parts of the filling channel and the discharge channel are respectively provided with bypass pipes that are detachably connected to external filling pipelines and discharge pipelines, and the filling pipelines and the discharge pipelines are respectively provided with filling valves and discharge valves.

3. The high-speed energy conversion and utilization device for transcritical processes according to claim 2, characterized in that, Before the working fluid chamber is placed in the outer cylinder of the chamber, the filling sealing bolt is screwed out to a certain length to connect the filling pipeline with the filling channel, and then the filling valve is opened to allow the liquid fluid working fluid to enter the working fluid chamber through the filling pipeline and the filling channel, and the required filling amount is calculated based on the corresponding relationship between the liquid fluid working fluid and the degree of pressurization.

4. The high-speed energy conversion and utilization device for transcritical processes according to claim 3, characterized in that, When the filling amount of the liquid fluid working medium in the working medium chamber exceeds the set amount, the discharge sealing bolt is screwed out to a certain length to connect the discharge pipeline with the discharge channel, and then the discharge valve is opened to allow excess liquid fluid working medium to flow out of the working medium chamber through the discharge channel and the discharge pipeline.

5. The high-speed energy conversion and utilization device for a transcritical process according to claim 1, characterized in that The wall material of the working fluid chamber is high-strength structural steel. The working fluid chamber can be refilled with working fluid after the working fluid is used up, and the working fluid chamber can be used repeatedly.

6. The high-speed energy conversion and utilization device for transcritical processes according to claim 1, characterized in that The wall material of the outer cylinder of the chamber is high-strength structural steel.

7. The high-speed energy conversion and utilization device for transcritical processes according to claim 1, wherein The fluid working medium in the working medium chamber is water, nitrogen or carbon dioxide. The weight of the working medium chamber before and after the fluid working medium is filled is weighed by a mass weighing instrument. The filling amount of the working medium is accurately controlled and guaranteed based on the weight difference of the working medium chamber before and after the fluid working medium is filled.

8. The high-speed energy conversion and utilization device for transcritical processes according to claim 1, characterized in that, A pressure sensor for the outer cylinder of the medicine chamber is installed on the inner wall of the outer cylinder of the medicine chamber near one end of the middle transition section, and a pressure sensor for the starting position of the outlet section is installed on the inner wall of the outlet section near one end of the middle transition section. The operating frequency of the two should be above 1000 Hz.

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