Nuclear fusion reaction experimental device

Abstract

The utility model discloses a nuclear fusion reaction experimental device, and relates to the technical field of nuclear fusion equipment. The nuclear fusion reaction experimental device comprises a vacuum pipeline, vacuum ends and a gas cylinder, the vacuum ends are arranged at the two ends of the vacuum pipeline, the vacuum ends are provided with gas injection pipelines, the gas injection pipelines are provided with first connecting flanges, the gas cylinder is provided with a gas conveying pipeline, and the gas conveying pipeline is provided with a second connecting flange. The gas pipeline is provided with a second connecting flange matched with the first connecting flange, the first connecting flange is provided with a first sealing ring and a first heat insulation extrusion ring, the second connecting flange is provided with a second sealing ring and a second heat insulation extrusion ring, and the first sealing ring and the second sealing ring are both provided with inclined faces which abut against each other. A sealing piece is arranged between the first heat insulation extrusion ring and the second heat insulation extrusion ring. The nuclear fusion reaction experimental device has the advantages of good sealing effect and long service life.

Description

TECHNICAL FIELD

[0001] The utility model relates to nuclear fusion equipment technical field, concretely relates to a nuclear fusion reaction experimental device. BACKGROUND

[0002] The linear nuclear fusion device is a plasma generating experimental device for realizing controlled nuclear fusion reaction by using magnetic confinement, for example, a field reversed configuration (FRC) linear device, mainly comprising a vacuum chamber, a magnetic field coil, a heating system, a feeding system, a diagnostic system and the like, the linear nuclear fusion device uses a magnetic field to confine high-temperature plasma, so that light nuclei (such as deuterium and tritium) in the high-temperature plasma can overcome the coulomb repulsion between each other, approach to a small enough distance, and thus nuclear fusion reaction occurs, releasing a large amount of energy.

[0003] In the prior art, deuterium gas is basically delivered from a deuterium gas cylinder to the inside of the linear nuclear fusion device through a pipeline, the delivery pipeline of the deuterium gas cylinder and the receiving pipeline of the vacuum end chamber are fixedly connected through flanges, and a sealing sheet is arranged between the two flanges to play a sealing role. However, the linear nuclear fusion device itself has a high temperature during the experiment process, which can easily cause the sealing sheet to accelerate aging, and the sealing sheet needs to be replaced more frequently.

[0004] Therefore, the prior art needs to be improved. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem that the sealing sheet in the prior art ages fast due to high temperature, and aims to provide a nuclear fusion reaction experimental device, which has the advantages of good sealing effect and long service life by using corresponding technical means.

[0006] The utility model realizes the following technical scheme:

[0007] The utility model provides a nuclear fusion reaction experimental device, it includes vacuum pipeline, vacuum end and gas cylinder, the vacuum end is arranged at both ends of the vacuum pipeline,

[0008] The vacuum end is provided with a gas injection pipeline, the gas injection pipeline is provided with a connecting flange one, the gas cylinder is provided with a gas delivery pipeline, the gas delivery pipeline is provided with a connecting flange two matched with the connecting flange one,

[0009] The connecting flange one is provided with a sealing ring one and a heat insulation extrusion ring one, the connecting flange two is provided with a sealing ring two and a heat insulation extrusion ring two, the sealing ring one and the sealing ring two are all provided with inclined surfaces abutting each other, and a sealing element is arranged between the heat insulation extrusion ring one and the heat insulation extrusion ring two.

[0010] Further, in the utility model, the inclined surface of the sealing ring one is gradually away from the end face of the connecting flange one from inside to outside, and the inclined surface of the sealing ring two is gradually close to the end face of the connecting flange two from inside to outside.

[0011] Further, in the utility model, the inner side wall of the sealing ring two is aligned with the inner wall of the gas injection pipeline and the gas conveying pipeline.

[0012] Further, in the utility model, the top of the heat insulation extrusion ring one is provided with a groove one accommodating the sealing member, and the bottom of the heat insulation extrusion ring two is provided with a groove two accommodating the sealing member.

[0013] Further, in the utility model, the groove one and the groove two are all provided with a redundant groove on the outer groove wall.

[0014] Further, in the utility model, the vacuum end head is provided with an end cover, and the end cover is provided with a reinforcing rib.

[0015] Further, in the utility model, the connecting flange one is provided with a bolt connected with the connecting flange two.

[0016] Further, in the utility model, the sealing ring one and the sealing ring two are provided with 2-4.

[0017] Further, in the utility model, the gas conveying pipeline is provided with a pressure reducing valve.

[0018] Further, in the utility model, the bottom of the vacuum end head is provided with a supporting base.

[0019] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0020] 1. The cooperation of the sealing ring one, the sealing ring two, the heat insulation extrusion ring one, the heat insulation extrusion ring two and the sealing member designed uniquely effectively improves the sealing property and the heat insulation property of the nuclear fusion reaction experimental device, reduces gas leakage and heat interference, protects the sealing member and prolongs the service life of the sealing member.

[0021] 2. The arrangement of the reinforcing rib on the end cover and the provision of the supporting base enhance the overall structural strength and stability of the experimental device and prolong the service life of the device.

[0022] 3. The arrangement of the pressure reducing valve on the gas conveying pipeline makes the gas input pressure adjustable, improves the safety and controllability of the experiment. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings described herein are intended to provide further understanding of the embodiments of the present application, form a part of the application, and do not constitute a limitation of the embodiments of the present application. In the drawings:

[0024] Figure 1 It is a side view of a nuclear fusion reaction experimental device of the present application;

[0025] Figure 2 It is a cross-sectional view of the connecting flange I and the connecting flange I when not connected of the present application;

[0026] Figure 3 It is a cross-sectional view of the connecting flange I and the connecting flange I when connected of the present application;

[0027] Figure 4 It is Figure 3 It is an enlarged view of A in the middle;

[0028] Figure 5 It is a schematic view of the vacuum end of the present application.

[0029] Markings in the drawings and corresponding component names: 1-vacuum pipeline, 2-vacuum end, 201-end cover, 202-stiffener, 3-gas injection pipeline, 301-connecting flange I, 4-gas pipeline, 401-connecting flange II, 5-sealing ring I, 6-heat insulation extrusion ring I, 601-groove I, 7-sealing ring II, 8-heat insulation extrusion ring II, 801-groove II, 9-sealing element, 10-redundant groove, 11-bolt, 12-supporting base. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the present application more clear, specific embodiments and drawings are used to make further detailed description of the present application, the schematic embodiment and its description of the present application are only used to explain the present application, and do not constitute a limitation of the present application. The following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0031] It should be noted that similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the embodiments of the present application, it should also be noted that unless otherwise explicitly specified and limited, if the terms "arrange", "mount", "connect" appear, they should be understood in a broad sense, for example, they can be fixed connection, or detachable connection, or integrally connected; they can be mechanical connection, or electrical connection; they can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] Embodiment

[0033] The present embodiment provides a kind of nuclear fusion reaction experimental device, as shown in Figures 1-5 Specific structure is described as follows.

[0034] As shown in Figure 1 , Figure 3 And Figure 4 The composition of nuclear fusion reaction experimental device is as follows, vacuum end 2 is installed at the two ends of vacuum pipeline 1, gas injection pipeline 3 is connected to vacuum end 2, and connecting flange one 301 is fixed at the port of gas injection pipeline 3. Connecting flange one 301 is provided with sealing ring one 5 and heat insulation extrusion ring one 6, and the direction of the inclined surface of sealing ring one 5 is ensured correct during processing and manufacturing, gradually away from the end surface of connecting flange one 301 from inside (center) to outside, i.e. the inclined surface gradually extends upward from inside to outside, and the inner wall of the innermost sealing ring one 5 is aligned with the inner wall of gas injection pipeline 3.

[0035] As shown in Figure 1 Gas pipeline 4 is connected to gas cylinder, and connecting flange two 401 is installed at the port of gas pipeline 4, and connecting flange two 401 is provided with sealing ring two 7 and heat insulation extrusion ring two 8, and the inclined surface of sealing ring two 7 is ensured to gradually approach the end surface of connecting flange two 401 from inside to outside during processing and manufacturing, and the inner wall of the innermost sealing ring two 7 is aligned with the inner wall of gas pipeline 4.

[0036] As shown in Figure 2 And Figure 3 Sealing element 9 is placed in recess one 601 of heat insulation extrusion ring one 6, then connecting flange one 301 and connecting flange two 401 are aligned, and fastened and connected through bolt 11, and during fastening, the inclined surfaces of sealing ring one 5 and sealing ring two 7 are tightly abutted with each other, and sealing element 9 between heat insulation extrusion ring one 6 and heat insulation extrusion ring two 8 is also compressed tightly.

[0037] As shown in Figure 3As shown, after connection, the inclined surface gradually extends upward from inside to outside, and the gas is transported from top to bottom, so the gas is not easy to enter the inclined surface to cause leakage, improving the sealing effect.

[0038] It should be noted that the sealing ring one 5 and the sealing ring two 7 are provided with three, and the sealing ring one 5 and the sealing ring two 7 are vertically aligned. The heat insulation extrusion ring one 6 and the heat insulation extrusion ring two 8 are located outside the sealing ring one 5 and the sealing ring two 7, and have a good heat insulation effect. And the sealing ring one 5 and the sealing ring two 7 play a preliminary sealing role, reducing the pressure of the sealing element 9. The sealing ring one 5 and the sealing ring two 7 can be made of metal material, the heat insulation extrusion ring one 6 and the heat insulation extrusion ring two 8 can be made of silicon nitride material, the thermal conductivity is low, and the sealing element 9 between the heat insulation extrusion ring one 6 and the heat insulation extrusion ring two 8 does not need to bear too much pressure. The sealing element 9 can be made of special engineering plastics.

[0039] In combination Figure 4 As shown, the redundant groove 10 is arranged on the groove wall outside the groove one 601 and the groove two 801, and the redundant groove 10 can be used as a containing chamber for the sealing element 9 being extruded and deformed. The cross section of the groove one 601 and the groove two 801 is about one fifth of the cross section of the sealing element 9.

[0040] In combination Figure 1 And Figure 5 As shown, the end cover 201 is installed on the vacuum end 2, and the reinforcing rib 202 is ensured to face the correct direction to enhance the structural strength of the end cover 201. The support base 12 is installed at the bottom of the vacuum end 2, so that the entire experimental device can be stably placed.

[0041] The operation principle of the nuclear fusion reaction experimental device is as follows:

[0042] Before the plasma generation experiment is performed, it is checked whether the connection of the entire experimental device is firm and whether the sealing of each sealing part is good. According to the experimental requirements, the pressure of the pressure reducing valve on the gas conveying pipeline 4 is adjusted, so that the gas pressure output by the gas cylinder meets the experimental set value. The gas cylinder valve is opened, and the gas enters the gas injection pipeline 3 through the gas conveying pipeline 4, the connecting flange two 401, the sealing ring two 7, the sealing element 9, the sealing ring one 5, the connecting flange one 301, and finally enters the vacuum pipeline 1. In the vacuum pipeline 1, the plasma is generated by a specific plasma generation means such as an electric field or a magnetic field, and the experimental research and data collection are performed according to the experimental requirements.

[0043] The utility model provides a kind of nuclear fusion reaction experimental device, it includes vacuum pipeline 1, vacuum end 2 and gas cylinder, vacuum end 2 is set to the both ends of vacuum pipeline 1, vacuum end 2 is provided with injection pipeline 3, injection pipeline 3 is provided with connection flange one 301, gas cylinder is provided with gas pipeline 4, gas pipeline 4 is provided with the connection flange two 401 adapted with connection flange one 301, connection flange one 301 is provided with sealing ring one 5 and heat insulation extrusion ring one 6, connection flange two 401 is provided with sealing ring two 7 and heat insulation extrusion ring two 8, sealing ring one 5, sealing ring two 7 are all provided with the inclined surface of mutual abutment, heat insulation extrusion ring one 6 and heat insulation extrusion ring two 8 between are provided with sealing element 9.The slope of sealing ring one 5 is gradually away from the end surface of connection flange one 301 from inside to outside, the slope of sealing ring two 7 is gradually close to the end surface of connection flange two 401 from inside to outside.The inner side wall of sealing ring two 7 is aligned with the inner wall of injection pipeline 3, gas pipeline 4.The top of heat insulation extrusion ring one 6 is provided with the recess one 601 of containing sealing element 9, the bottom of heat insulation extrusion ring two 8 is provided with the recess two 801 of containing sealing element 9.Recess one 601, recess two 801 are all provided with redundancy groove 10 on the groove wall of outside.The end cap 201 of vacuum end 2 is provided with reinforcing rib 202.Connection flange one 301 is provided with bolt 11 connected with connection flange two 401.Sealing ring one 5, sealing ring two 7 are provided with 2-4.Connection flange one 301 is provided with bolt 11 connected with connection flange two 401.Sealing ring one 5, sealing ring two 7 are provided with 2-4.Gas pipeline 4 is provided with pressure reducing valve.The bottom of vacuum end 2 is provided with support base 12.Therefore, the nuclear fusion reaction experimental device of the utility model has the advantages of good sealing effect and long service life.

[0044] The above detailed description is used to further explain the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above description is only a specific embodiment of the utility model, and is not used to limit the protection scope of the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A nuclear fusion reaction experimental apparatus characterized by comprising: The vacuum pipeline (1), the vacuum end head (2) and the gas cylinder are included, The vacuum end head (2) is provided with a gas injection pipeline (3) provided with a connecting flange one (301), and the gas cylinder is provided with a gas conveying pipeline (4) provided with a connecting flange two (401) matched with the connecting flange one (301), The connecting flange one (301) is provided with a sealing ring one (5) and a heat insulation extrusion ring one (6), the connecting flange two (401) is provided with a sealing ring two (7) and a heat insulation extrusion ring two (8), the sealing ring one (5) and the sealing ring two (7) are provided with inclined surfaces abutting each other, and the heat insulation extrusion ring one (6) and the heat insulation extrusion ring two (8) are provided with a sealing element (9) therebetween.

2. The nuclear fusion reaction experiment apparatus according to claim 1, wherein The inclined surface of the sealing ring one (5) gradually moves away from the end surface of the connecting flange one (301) from inside to outside, and the inclined surface of the sealing ring two (7) gradually moves close to the end surface of the connecting flange two (401) from inside to outside.

3. The nuclear fusion reaction experiment apparatus according to claim 2, wherein The inner side wall of the sealing ring two (7) is aligned with the inner walls of the gas injection pipeline (3) and the gas conveying pipeline (4).

4. The nuclear fusion reaction experiment apparatus according to claim 1, wherein The top of the heat insulation extrusion ring one (6) is provided with a groove one (601) accommodating the sealing element (9), and the bottom of the heat insulation extrusion ring two (8) is provided with a groove two (801) accommodating the sealing element (9).

5. The nuclear fusion reaction experiment apparatus according to claim 4, wherein The groove one (601) and the groove two (801) are each provided with a redundant groove (10) on the outer side groove wall.

6. The nuclear fusion reaction experiment apparatus according to claim 1, wherein The vacuum end head (2) is provided with an end cover (201) provided with a reinforcing rib (202).

7. The nuclear fusion reaction experiment apparatus according to claim 1, wherein The connecting flange one (301) is provided with a bolt (11) connected with the connecting flange two (401).

8. The nuclear fusion reaction experiment apparatus according to claim 1, wherein The sealing ring one (5) and the sealing ring two (7) are provided with 2-4.

9. The nuclear fusion reaction experiment apparatus according to claim 1, wherein The gas conveying pipeline (4) is provided with a pressure reducing valve.

10. The nuclear fusion reaction experimental apparatus according to any one of claims 1 to 9, characterized by, The bottom of the vacuum end head (2) is provided with a support base (12).

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