An experimental device for a reactor propulsion system

Abstract

This invention discloses an experimental apparatus for a reactor propulsion system, comprising: a reactor core simulator, a heat exchange system, a power system, a propeller, and an operating system. The reactor core simulator and the heat exchange system are connected by pipes to transport the generated high-temperature medium to the heat exchange system. In the heat exchange system, the high-temperature medium exchanges heat with the working medium to generate high-temperature steam, which is output to the power system through pipes. The power system is connected to the heat exchange system through pipes, and the power output end of the power system is connected to the propeller. The power system is used to drive the propeller using the energy of the high-temperature steam. The operating system is equipped with a water space for the propeller to operate. By heating the medium to a specified temperature using the reactor core simulator, the medium exchanges heat with the heat exchange system. The heat exchange system uses water to exchange heat with the medium to form high-temperature steam. The power system uses the energy of the high-temperature steam to drive the propeller, which simulates operation within the operating system.

Description

Technical Field

[0001] This invention relates to the field of nuclear power, and more particularly to an experimental apparatus for a reactor propulsion system. Background Technology

[0002] Reactor propulsion systems are a crucial component of ship propulsion systems. Steam propulsion systems, which convert steam energy into mechanical or electrical energy to drive the ship, offer numerous advantages, including high power, high torque at low speeds, high efficiency, high reliability, and wide applicability. They are irreplaceable in heavy-load, low-speed, long-endurance, and special fuel scenarios. Especially when combined with nuclear energy, steam propulsion technology remains a core technology for high-power, long-endurance vessels such as icebreakers and aircraft carriers. However, the rationality and safety of advanced reactor propulsion system designs require corresponding systematic experiments for support and verification. Currently, there is a lack of a device for simulating and experimenting with reactor propulsion systems. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an experimental apparatus for a reactor propulsion system.

[0004] The technical solution adopted by this invention to solve its technical problem is as follows: Constructing a reactor propulsion system experimental device, comprising: a reactor core simulator, a heat exchange system, a power system, a propeller, and an operating system; the reactor core simulator and the heat exchange system are connected by pipelines to transport the generated high-heat medium to the heat exchange system; in the heat exchange system, the high-heat medium exchanges heat with the working medium to generate high-heat steam, which is output to the power system through pipelines; the power system is connected to the heat exchange system through pipelines, and the power output end of the power system is connected to the propeller, the power system being used to drive the propeller using the energy of the high-heat steam; the operating system is provided with a water space for the propeller to operate.

[0005] Furthermore, the operating system includes a propulsion tank and a cooling device; the propulsion tank has a space to accommodate the propeller and can be filled with liquid to provide a stable operating water area for the propeller; the cooling device is connected to the propulsion tank and is used to cool the liquid in the propulsion tank.

[0006] Furthermore, the propulsion tank includes an inner flow cylinder for housing the propeller, an outer flow cylinder for housing the inner flow cylinder, an outlet rectifier head disposed at the end of the outer flow cylinder away from the propeller and used to block the outer flow cylinder, and an inlet rectifier head disposed at the end of the outer flow cylinder close to the propeller and used to block the outer flow cylinder. An outer flow channel is provided between the inner flow cylinder and the outer flow cylinder, and the outer flow channel is connected to the outlet and inlet of the inner flow cylinder respectively.

[0007] Furthermore, the propulsion tank also includes an outlet rectifier disposed in the inner flow cylinder and adjacent to the outlet of the inner flow cylinder, and an inlet rectifier disposed in the inner flow cylinder and adjacent to the inlet of the inner flow cylinder.

[0008] Furthermore, the inner flow cylinder has flared openings at both ends, and the radial cross-sectional area of ​​the flared openings gradually increases from the middle of the inner flow cylinder to the two ends.

[0009] Furthermore, the outer wall of the outflow cylinder is provided with a water inlet hole, the outlet rectifier head is provided with a water outlet hole, and the cooling device is connected to the water outlet hole and the water inlet hole through a pipe.

[0010] Furthermore, the outlet rectifier head includes an arc-shaped outlet rectifier portion disposed between the outlet of the outer flow channel and the outlet of the inner flow cylinder; and / or, the inlet rectifier head includes an arc-shaped inlet rectifier portion disposed between the inlet of the outer flow channel and the inlet of the inner flow cylinder.

[0011] Furthermore, the outlet rectifier head also includes a rectifier section with an arc shape at one end of the outer flow tube in the water outlet direction, and an outlet section disposed at the center of the rectifier section and protruding towards the inner flow tube, the outlet section being provided with a water outlet.

[0012] Furthermore, the outlet rectifier (515) is a rectifier plate that matches the shape of the inner flow cylinder (512), and the rectifier plate is provided with a plurality of rectifier holes.

[0013] Furthermore, the inlet rectification device includes an arc-shaped plate that protrudes from the inlet end of the inner flow cylinder in a direction away from the inner flow cylinder, and the arc-shaped plate is provided with a plurality of rectification holes.

[0014] Furthermore, the flow area of ​​the outer channel is twice or more than twice the flow area of ​​the inner channel of the inner cylinder.

[0015] Implementing the experimental device for a reactor propulsion system of the present invention has the following beneficial effects: by heating the medium to a specified temperature using a reactor core simulator, the medium exchanges heat in a heat exchange system, which uses water to exchange heat with the medium to form high-temperature steam, and the power system uses the energy of the high-temperature steam to drive the propeller, which simulates operation within the operating system. The device adopts a modular design, and the experimental operation is simple. It can not only verify the overall effect of the rationality of the overall design of the nuclear reactor ship steam propulsion system, but also conduct experimental research on the reactor engine operation logic and propulsion characteristics in the reactor propulsion system. Attached Figure Description

[0016] To more clearly illustrate the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings: Figure 1 This is an overall diagram of an experimental apparatus for a reactor propulsion system according to one embodiment of the present invention; Figure 2 This is a structural diagram of the propulsion water tank of an experimental device for a reactor propulsion system according to one embodiment of the present invention.

[0017] Figure Labels 100. Core simulator; 110. Pressure vessel; 120. Electrically heated core; 200. Heat exchange system; 210. Main pump unit; 220. Steam generator; 230. Pressurizer; 300. Power system; 310. Feedwater pump; 320. Steam turbine; 330. Condenser; 340. Condensate pump; 350. Deaerator tank; 360. Gearbox; 370. Coupling; 400. Propeller; 500. Operating system; 510. Propulsion tank; 511. Outer flow tube; 512. Inner flow tube; 513. Outlet rectifier head; 514. Inlet rectifier head; 515. Outlet rectifier device; 516. Inlet rectifier device; 517. Inlet port; 518. Shaft hole; 519. Outlet port; 520. Cooling device; 530. Outer flow channel. Detailed Implementation

[0018] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "upper," "inner," and "outer" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing the technical solution and do not indicate that the device or element referred to must have a specific orientation; therefore, they should not be construed as limitations on the present invention.

[0019] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0020] Figure 1 An experimental apparatus for a reactor propulsion system according to one embodiment of the present invention is shown. This experimental apparatus can be used to simulate the operation of a nuclear reactor ship propeller 400. It may include: a reactor core simulator 100, a heat exchange system 200, a power system 300, a propeller 400, and an operating system 500. The reactor core simulator 100 and the heat exchange system 200 are connected by pipes to transport a generated high-heat medium to the heat exchange system 200. In the heat exchange system 200, the high-heat medium exchanges heat with a working medium to generate high-heat steam, which is output to the power system 300 through pipes. The power system 300 is connected to the heat exchange system 200 through pipes, and the power output end of the power system 300 is connected to the propeller 400. The power system 300 is used to drive the propeller 400 using the energy of the high-heat steam. The operating system 500 is provided with a water space for the propeller 400 to operate.

[0021] By heating the medium to a specified temperature using a core simulator 100, the high-heat medium flows through pipes into a heat exchange system 200 for heat exchange. The heat exchange system 200 uses water to exchange heat with the high-heat medium and heats the water into high-temperature, high-pressure steam. The power system 300 converts the thermal energy of the steam into mechanical energy and outputs rotational power to a propeller 400. The propeller 400 simulates operation within the operating system 500. The device adopts a modular design, making experimental operation simple. The device has a wide range of research content, which can verify the overall effect of the rationality of the overall design of the nuclear reactor ship steam propulsion system, and can also conduct experimental research on the reactor engine operation logic and propulsion characteristics in the reactor propulsion system.

[0022] Understandably, the operating system 500 is filled with the liquid used by the propeller 400 during operation, which is pure water, salt water, or seawater, and the propeller 400 is completely immersed in the liquid.

[0023] In some embodiments, the outer layer of the reactor core simulator 100 is made of thermal insulation material because the reactor core simulator 100 has a high temperature and easily dissipates heat into the external space. Thermal insulation material is needed to insulate the core and improve heating efficiency.

[0024] In some embodiments, the reactor core simulator 100 includes an electrically heated reactor core 120 composed of several electrically heated components, a pressure vessel 110 for housing the electrically heated reactor core 120, and a control module for controlling the power of the electrically heated reactor core 120. The electrically heated reactor core 120 is used to heat the medium inside the pressure vessel 110 to a high temperature. The electrically heated reactor core 120 is disposed in the pressure vessel 110, which is used to house the reactor core and the medium. The control module is electrically connected to the electrically heated reactor core 120 and is used to control the electrically heated reactor core 120.

[0025] Furthermore, several electric heating elements are arranged in an array, which allows the spacing between the electric heating elements to be the same, resulting in more uniform heating of the medium as a whole.

[0026] In some embodiments, the heat exchange system 200 includes a steam generator 220 connected to the core simulator 100 via piping, and a main pump unit 210 disposed in the piping between the steam generator 220 and the core simulator 100. The steam generator 220 is used to transfer heat from the high-temperature medium to the liquid inside the steam generator 220, heating the liquid into a high-temperature, high-pressure liquid. The main pump unit 210 is connected to the steam generator 220 via piping and is used for circulating the medium between the core simulator 100 and the steam generator 220.

[0027] In some embodiments, the heat exchange system 200 includes a pressurizer 230 installed in the pipeline between the steam generator 220 and the core simulator 100. The pressurizer 230 is a sealed gas cylinder connected in parallel to the pipeline. The pressurizer 230 is used to balance pressure fluctuations during the operation of the core simulator 100 and the heat exchange system 200.

[0028] Furthermore, when the medium is water or nitrogen, the voltage regulator 230 uses steam or nitrogen for voltage regulation.

[0029] In some embodiments, the power system 300 includes a steam turbine 320 connected to the steam generator 220 and converting high-temperature steam into mechanical energy; a condenser 330 connected to the steam turbine 320 and converting water vapor exiting the steam turbine 320 into condensate; and a condensate pump 340 connected to the condenser 330 and used to return the condensate to the steam generator 220. The steam turbine 320 is used to convert the thermal energy of the high-temperature steam into rotational mechanical energy, which is output to the propeller 400. The condenser 330 is connected to the steam turbine 320 via pipes and is used to recondense the water vapor into a liquid state.

[0030] In some embodiments, the power system 300 includes a deaerated water tank 350 disposed between the condensate pump 340 and the steam generator 220, and a feedwater pump 310 for returning condensate in the deaerated water tank 350 to the steam generator 220. The deaerated water tank 350 is connected to the condensate pump 340 and the feedwater pump 310 via pipelines. The deaerated water tank 350 is used to store feedwater and performs deaeration of the feedwater through deaeration methods such as thermal deaeration. The feedwater pump 310 is connected to the deaerated water tank 350 and the steam generator 220 via pipelines and is used to return the deaerated condensate to the steam generator 220.

[0031] The reactor core simulator 100, pressurizer 230, steam generator 220, and main pump unit 210 are connected in sequence to form the primary loop system. The steam generator 220, turbine 320, condenser 330, condensate pump 340, deaerator tank 350, feedwater pump 310, and steam generator 220 are connected in sequence to form the secondary loop system. The primary loop system heats water using the reactor core simulator 100 and transfers the heat from the primary loop system to the secondary loop system through the steam generator 220 to generate the steam required to drive the turbine.

[0032] Furthermore, a steam bypass is provided at the turbine 320, allowing steam to flow through the steam bypass without passing through the turbine 320. When the propeller 400 stops running, the steam can continue to flow through the steam bypass, and the turbine 320 will no longer rotate.

[0033] In some embodiments, the power system 300 includes a reduction gearbox 360 disposed between the propeller 400 and the turbine 320. The reduction gearbox 360 is used to reduce the high-speed central shaft of the turbine 320 to the speed range of the propeller 400 through a certain transmission ratio, thus meeting the research requirements of actual propulsion systems.

[0034] Furthermore, a coupling 370 is provided between the gearbox 360 and the propeller 400, which can reduce the vibration and deflection of the gearbox.

[0035] In some embodiments, the power system 300 includes a shafting unit connected to the central shaft of the turbine 320. The shafting unit includes a drive shaft, a thrust bearing, an intermediate shaft, and a stern shaft. The drive shaft is connected to the turbine 320, and the stern shaft is connected to the propeller 400.

[0036] Figure 2 As shown, in some embodiments, the operating system 500 includes a propulsion tank 510 for housing the propeller 400 and providing a stable operating area for the propeller 400, and a cooling device 520 for cooling the liquid inside the propulsion tank 510. The propulsion tank 510 provides sufficient liquid space for the propeller 400 to operate in simulated operation. The cooling device 520 is connected to the propulsion tank 510 via pipes. When the propeller 400 operates, it dissipates mechanical energy through hydrodynamics, ultimately converting it into the internal energy of the water, causing the water temperature to rise, requiring the cooling device 520 to cool the water.

[0037] In some embodiments, the propulsion tank 510 may have a roughly U-shaped annular structure. It includes an inner flow cylinder 512 housing the propeller 400, an outer flow cylinder 511 housing the inner flow cylinder 512, an outlet rectifying head 513 located at the end of the outer flow cylinder away from the propeller 400 and used to seal the outer flow cylinder 511, and an inlet rectifying head 514 located at the end of the outer flow cylinder near the propeller 400 and used to seal the outer flow cylinder 511. The outlet rectifying head 513 and the inlet rectifying head 514 are respectively located at both ends of the outer flow cylinder 511 to form a sealed state. An outer flow channel 530 is provided between the inner flow cylinder 512 and the outer flow cylinder 511, and the outer flow channel 530 communicates with the outlet and inlet of the inner flow cylinder 512. The inner flow cylinder 512 is used to accommodate the propeller 400 for rotation within it. The inner flow tube 512 is installed in the outer flow tube 511 to form an annular waterway with stable flow performance between the outer flow tube 511 and the inner flow tube 512.

[0038] The propulsion tank 510 further includes an outlet rectifier 515 disposed in the inner flow cylinder 512 and adjacent to the outlet of the inner flow cylinder 512, and an inlet rectifier 516 disposed in the inner flow cylinder 512 and adjacent to the inlet of the inner flow cylinder 512. The outlet rectifier 515 is disposed in the water outlet direction of the propeller 400, and the inlet rectifier 516 is disposed in the water inlet direction of the propeller 400. The outlet rectifier 515 and the inlet rectifier 516 are used to eliminate or reduce the periodic flow field pulsation caused by the operation of the propeller 400, and avoid the generation of flow instability.

[0039] Furthermore, the inlet rectifier head 514 is provided with a shaft hole 518 for the propeller 400 to pass through.

[0040] Furthermore, the outer flow tube 511 has a water inlet 517 on its side wall, and the outlet rectifier head 513 has a water outlet 519. The cooling device 520 forms a cooling circulation loop with the propulsion water tank 510 through the water outlet 519 and the water inlet 517. The pressure generated by the propeller 400 during operation can send water into the cooling device 520 and circulate the liquid in the cooling device 520 back into the propulsion water tank 510.

[0041] Furthermore, the propeller 400 and the propulsion water tank 510 are integrated into a single structure to ensure the overall stability of the propeller 400 during operation.

[0042] Furthermore, the inlet rectifier 516 and the outlet rectifier 515 are provided with several rectifier holes. The size of the flow area of ​​the rectifier holes can control the running resistance, which is used to match the propeller power 400 with the target speed.

[0043] In some embodiments, the propulsion tank 510 includes an inner flow cylinder 512 and an outer flow cylinder 511 that are coaxial. The inner flow cylinder 512, the outer flow cylinder 511, the outlet rectifier head 513, and the inlet rectifier head 514 form a return flow pipeline. The interior of the inner flow cylinder 512 is an inner flow channel, and the annular flow channel formed between the inner flow cylinder 512 and the outer flow cylinder 511 is an outer flow channel. The return flow pipeline allows the liquid inside the propulsion tank 510 to circulate, simulating the propeller 400 within it.

[0044] In some embodiments, the inner flow tube 512 includes flared openings at both ends. The radial cross-sectional area of ​​the flared openings gradually increases from the middle of the inner flow tube 512 to the two ends. The flared openings are used to increase the flow area, slow down the liquid flow rate, and guide the liquid into the outer flow channel to avoid the formation of local eddies or vortices.

[0045] In some embodiments, the outlet rectifier head 513 includes an arc-shaped outlet rectifier disposed between the flow channel and the outlet of the inner flow cylinder 512; and / or the inlet rectifier head 514 includes an arc-shaped inlet rectifier disposed between the flow channel and the inlet of the inner flow cylinder 512.

[0046] In some embodiments, the outlet rectifier head 513 includes an outlet rectifier section with an arc shape at one end of the outer flow tube 511 in the water outlet direction, and an outlet section disposed at the center of the outlet rectifier section and protruding towards the inner flow tube 512. The outlet rectifier section is semi-circular arc-shaped and is used to guide high-speed liquid into the outer flow channel, reduce the impact of high-speed liquid on the propulsion tank 510, and reduce the vibration generated therefrom.

[0047] Furthermore, in some embodiments, the inlet rectifying head 514 includes an arc-shaped plate protruding from the inlet end of the inner flow tube 512 away from the inner flow tube 512, and an inlet rectifying part at the center of the inlet rectifying head 514 and protruding towards the inner flow tube 512. The inlet rectifying part is semi-circular arc-shaped and is used to guide high-speed liquid into the inner flow channel, reduce the impact of high-speed liquid on the propulsion tank 510, and reduce the vibration generated therefrom.

[0048] In some embodiments, the outlet rectifier 515 includes an arc-shaped plate that matches the shape of the inner flow cylinder 512. The arc-shaped plate is provided with a plurality of rectifier holes. The number and flow area of ​​the rectifier holes are determined according to the shape, size, power and speed of the propeller 400. The flow resistance generated by the number and flow area of ​​the rectifier holes is determined according to the power of the propeller. The smaller the flow area of ​​the rectifier holes, the greater the flow resistance.

[0049] In some embodiments, the inlet rectifier 516 includes an arc-shaped plate that protrudes away from the inner flow cylinder 512. The arc-shaped plate is provided with a plurality of rectifier holes. The number and flow area of ​​the rectifier holes are determined according to the shape, size, power and speed of the propeller 400. The arc-shaped plate increases the contact area with the liquid and reduces the impact force of the water flow.

[0050] In some embodiments, the inlet rectifier 516 includes a flow area between the inner flow cylinder 512 and the outer flow cylinder 511 that is twice or more the flow area of ​​the inner flow cylinder 512, and a flow area of ​​the outer flow channel that is twice or more the flow area of ​​the inner flow channel. This can greatly slow down the flow rate of the liquid in the outer flow channel and reduce the impact of the liquid on the propulsion tank 510.

[0051] It is understood that the above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features without departing from the concept of the present invention, and can also make several modifications and improvements, all of which fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. An experimental apparatus for a reactor propulsion system, characterized in that, include: Core simulator (100), heat exchange system (200), power system (300), propeller (400), operation system (500); The core simulator (100) and the heat exchange system (200) are connected by pipes to transport the generated high-heat medium to the heat exchange system (200); In the heat exchange system (200), the high-heat medium exchanges heat with the working medium to generate high-heat steam, which is then output to the power system (300) through a pipeline. The power system (300) is connected to the heat exchange system (200) via a pipeline. The power output end of the power system (300) is connected to the propeller (400). The power system (300) is used to drive the propeller (400) using the energy of the high-temperature steam. The operating system (500) is provided with a water space for the propeller (400) to operate.

2. The experimental apparatus for a reactor propulsion system according to claim 1, characterized in that, The operating system (500) includes a propulsion tank (510) and a cooling device (520); The propulsion tank (510) is provided with a space to accommodate the propeller (400) and can be filled with liquid to provide a stable operating water area for the propeller (400); The cooling device (520) is connected to the propulsion water tank (510) and is used to cool the liquid in the propulsion water tank (510).

3. The experimental apparatus for a reactor propulsion system according to claim 2, characterized in that, The propulsion tank (510) includes an inner flow cylinder (512) for accommodating the propeller (400), an outer flow cylinder (511) for accommodating the inner flow cylinder (512), an outlet rectifier head (513) disposed at one end of the outer flow cylinder (511) away from the propeller (400) and used to block the outer flow cylinder (511), and an inlet rectifier head (514) disposed at one end of the outer flow cylinder (511) near the propeller (400) and used to block the outer flow cylinder (511). An outer flow channel (530) is provided between the inner flow cylinder (512) and the outer flow cylinder (511), and the outer flow channel (530) is connected to the outlet and inlet of the inner flow cylinder (512) respectively.

4. The experimental apparatus for a reactor propulsion system according to claim 3, characterized in that, The propulsion tank (510) further includes an outlet rectifier (515) disposed in the inner flow cylinder (512) and adjacent to the outlet of the inner flow cylinder (512), and an inlet rectifier (516) disposed in the inner flow cylinder (512) and adjacent to the inlet of the inner flow cylinder (512).

5. The experimental apparatus for a reactor propulsion system according to claim 3, characterized in that, The inner flow cylinder (512) has flared openings at both ends, and the radial cross-sectional area of ​​the flared openings gradually increases from the middle of the inner flow cylinder (512) to the two ends.

6. The experimental apparatus for a reactor propulsion system according to claim 3, characterized in that, The outer wall of the outflow cylinder (511) is provided with a water inlet hole (517), and the outlet rectifier head (513) is provided with a water outlet hole (519). The cooling device (520) is connected to the water outlet hole (519) and the water inlet hole (517) through a pipe.

7. The experimental apparatus for a reactor propulsion system according to claim 3, characterized in that, The outlet rectifier head (513) includes an arc-shaped outlet rectifier section, which is disposed between the outlet of the outer flow channel (530) and the outlet of the inner flow cylinder (512); and / or, The inlet rectifying head (514) includes an arc-shaped inlet rectifying section, which is disposed between the inlet of the outer flow channel (530) and the inlet of the inner flow cylinder (512).

8. The experimental apparatus for a reactor propulsion system according to claim 7, characterized in that, The outlet rectifier cap (513) also includes an outlet portion that protrudes from the center of the outlet rectifier portion toward the inner flow cylinder (512), and the outlet portion is provided with a water outlet (519).

9. The experimental apparatus for a reactor propulsion system according to claim 4, characterized in that, The outlet rectifier (515) is a rectifier plate that matches the shape of the inner flow cylinder (512), and the rectifier plate is provided with a plurality of rectifier holes.

10. The experimental apparatus for a reactor propulsion system according to claim 4, characterized in that, The inlet rectifier (516) includes an arc plate with an arc shape that protrudes from the inlet end of the inner flow cylinder (512) away from the inner flow cylinder (512), and the arc plate is provided with a plurality of rectifier holes.

11. The experimental apparatus for a reactor propulsion system according to claim 3, characterized in that, The flow area of ​​the outer channel (530) is twice or more than twice the flow area of ​​the inner channel of the inner cylinder (512).

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