CN102903398B - Pipeline for injecting pellets from strong field side - Google Patents
Pipeline for injecting pellets from strong field side Download PDFInfo
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- CN102903398B CN102903398B CN201110215807.3A CN201110215807A CN102903398B CN 102903398 B CN102903398 B CN 102903398B CN 201110215807 A CN201110215807 A CN 201110215807A CN 102903398 B CN102903398 B CN 102903398B
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- field side
- pipe
- pellets
- injecting
- pipeline
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
Abstract
The invention belongs to the field of charging in fusion, particularly discloses a pipeline for injecting pellets from a strong field side and aims to provide a curved pipeline by which the pellets can be injected from the strong field side, so that a novel method for injecting the pellets is provided, the pellet charging efficiency is improved, and a plurality of physical experiments can be performed. The pipeline for injecting the pellets form the strong field side is connected to a strong field side of a discharging vacuum chamber (4) and comprises three sections of curved pipes, wherein the first section is a pipe C of which an inlet is connected with a gun barrel of a pellet injector to ensure that a flight path of each pellet which flies to a feeble field side of the discharging vacuum chamber (4) is changed; the second section is a pipe B by which the fly path of each pellet spans the discharging vacuum chamber (4) from one end of the feeble field to the strong field side; and the third section is a pipe A of which an outlet points to discharge plasma (5) in the discharging vacuum chamber (4) for finishing the charging process. The pipeline for injecting the pellets from the strong field side has the advantages that the pellet charging efficiency can be effectively improved, and a plurality of physical experiments can be performed.
Description
Technical field
The invention belongs to fusion to feed in raw material field, be specifically related to Pellet fueling and inject form.
Background technology
Abroad many devices adopt usually and carry out Multi-pellet injection from feeble field side, because engineering more easily realizes.Feeble field side Multi-pellet injection uses linear pattern pipeline transmission bullet, velocity of shot can up to about 1km/s, and good bullet integrality can be kept, as the acceleration means adopting some special, as second stage pneumatic rifle, electromagnetic path rifle, the ACCELERATING PROJECTILE such as electron beam heating rocket effect, the velocity of shot up to 5km/s can be obtained, but the velocity of shot of this rank for required by large-scale fusion reactor core fueling not enough, it is difficult that initial velocity only by improving Multi-pellet injection solves core fueling, therefore a kind of new injection mode or feeding technique must be found, and high field side is injected and can be injected with lower speed the reinforced demand that bullet solves more deep layer, also can enrich Physical Experiment content simultaneously, therefore the Pellet injection experiment research of high field side is carried out very necessary.
Summary of the invention
The object of the invention is to by design and installation dog leg piping, bullet to be injected from high field side, provide a kind of Multi-pellet injection mode of novelty, improve Pellet fueling efficiency, enrich Physical Experiment content simultaneously.
The present invention is achieved in that a kind of pipeline for injecting bullets at high-field side, from pellets injector gun barrel, be connected to discharging vacuum chamber, and wherein, described pipeline for injecting bullets at high-field side is connected to the high field side of discharging vacuum chamber.
A kind of pipeline for injecting bullets at high-field side as above, wherein, described pipeline for injecting bullets at high-field side comprises three sections of crooked pipelines, first paragraph is C pipe, and entrance connects pellets injector gun barrel, makes bullet change the flight path flying to the feeble field side of discharging vacuum chamber, second segment is B pipe, entrance connects the outlet of C pipe, makes projectile flight track cross over discharging vacuum chamber, arrives high field side from one end, feeble field side; 3rd section is A pipe, and entrance connects the outlet of B pipe, and the discharge plasma in discharging vacuum chamber is pointed in outlet, and for completing reinforced work, each section of bending conduit is directly connected or connected by linear conduit.
A kind of pipeline for injecting bullets at high-field side as above, wherein, catheter diameter gets 3 ~ 5 times of bullet diameter, adopts stainless-steel tube, the mechanical buffing of curve pipe inner wall; The curve duct entry end of the curve duct entry end of second segment B pipe and the 3rd section of A pipe is all made tubaeform; Curve conduit is provided with two inspections and examinations windows, for the mensuration of velocity of shot and quality, and the taking pictures of Flight Projectile.
A kind of pipeline for injecting bullets at high-field side as above, wherein, described pipeline for injecting bullets at high-field side and feeble field side filling line are set up in parallel, and are regulated the sensing of pellets injector gun barrel by converter; Converter comprises adjusting screw(rod), studdle, corrugated tube and seal flange; Studdle one end is fixedly connected with pellets injector gun barrel, and the other end is fixedly connected with the movable end of corrugated tube; Adjusting screw(rod) is connected between the movable end of corrugated tube and stiff end, rotates adjusting screw(rod) and makes corrugated tube carry out compressing and extending; The movable end of corrugated tube adopts seal flange sealing, and stiff end to be fixed on the housing that seals and surround the outlet of pellets injector gun barrel and pipeline for injecting bullets at high-field side and to ensure impermeability.
The invention has the advantages that: can effectively improve Pellet fueling efficiency, also can enrich Physical Experiment content simultaneously.
Accompanying drawing explanation
Fig. 1 is high field side and feeble field side Multi-pellet injection pipeline general structure;
Fig. 2 is converter structure schematic diagram;
Fig. 3 is the radius-of-curvature of three sections of curve conduits;
Fig. 4 is the performance test scheme of bullet when curve catheter movement.
Wherein, 1, pellets injector; 2, converter; 3, high field side curve conduit; 4, discharging vacuum chamber; 5, discharge plasma; 6, feeble field side curve conduit; 11, gun barrel; 12, high field side conduit; 13, feeble field side conduit; 14, converter; 15, corrugated tube; 16, seal flange; 17, studdle; 18, adjusting screw(rod), 21, first paragraph bending conduit C; 22, second segment bending conduit B; 23, the 3rd section of bending conduit A.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described further:
As shown in Figure 1, high field side Multi-pellet injection circuit design comprises for high field side and feeble field side Multi-pellet injection general structure: the curve conduit, converter, bullet diagnostic instrments (velocity survey, imaging system) etc. of three sections of different curvature.
The effect of three sections of curve conduits is incorporated into discharging vacuum chamber by bullet from the outlet of pellets injector gun barrel, realizes bullet high field and inject, and ensures complete etc. in curve conduit of bullet; Converter Main Function switches strong, feeble field filling line, and Multi-pellet injection mode can be changed flexibly; Bullet diagnostic instrments is placed on intermediate curve conduit two ends, measures velocity of shot and takes pictures to bullet.
High field side Multi-pellet injection can solve the reinforced difficulty of more deep layer with lower Multi-pellet injection speed, to realize the raising of plasma density, therefore, China's fusion facility is carried out the Pellet injection experiment research of high field side and is necessary.
Fig. 2 is converter structure schematic diagram, and converter comprises adjusting screw(rod), the corrugated tube that studdle, ratio of compression are high and seal flange etc.By regulating the position of adjusting screw(rod), utilizing the compressible advantage of corrugated tube, studdle is moved up and down, thus gun barrel is moved up and down.This design vacuum leakproofness is good; When can ensure conversion injection direction accurately, convenient, stable etc.; Converter structure is simple, easy accessibility.When not interrupting bullet preparation system and running, the switching of the injection of bullet high field side and feeble field side injection mode can be carried out.
Concrete, described pipeline for injecting bullets at high-field side and feeble field side filling line are set up in parallel, and are regulated the sensing of pellets injector 1 gun barrel by converter; Converter comprises adjusting screw(rod) 18, studdle 17, corrugated tube 15 and seal flange 16; Studdle 17 one end is fixedly connected with pellets injector 1 gun barrel, and the other end is fixedly connected with the movable end of corrugated tube 15; Between the movable end that adjusting screw(rod) 18 is connected to corrugated tube 15 and stiff end, rotate adjusting screw(rod) 18 and make corrugated tube 15 carry out compressing and extending; The movable end of corrugated tube 15 adopts seal flange 16 to seal, and stiff end to be fixed on the housing that seals and surround the outlet of pellets injector 1 gun barrel and pipeline for injecting bullets at high-field side and to ensure impermeability.
As shown in Figure 3, in the present embodiment, the basic structure of the high field side Multi-pellet injection pipeline determined is as follows:
From pellets injector gun barrel, point three sections of flow in pipes are connected to discharging vacuum chamber.First paragraph is C pipe, and entrance connects pellets injector gun barrel, and exit normal is (this direction is relevant with the particular location of pellets injector, in various implementation procedure, also can be other direction) upwards, and radius-of-curvature is: 800mm, and length is 2000mm; Second segment is B pipe, and entrance connects the outlet of C pipe, and exit normal is downward, and radius-of-curvature is: 800mm, and length is 2500mm; 3rd section is A pipe, and entrance connects the outlet of B pipe, and exit normal is bent downwardly, and radius-of-curvature is: 200mm, and length is 1500mm (comprising linear conduit).Whole curve conduit is always about 6m.
In actual use, connect between curve conduit with transition connector, may there be straight-line segment middle connection, specifically will determine according to situation when installing.
Curve catheter diameter generally gets 3 ~ 5 times of bullet diameter, the bullet diameter that our newly-designed pellets injector is launched is 1.3mm, therefore employing internal diameter is three kinds of thin-wall stainless steels of 4mm, 4.5mm, 6.5mm, and the mechanical buffing of curve pipe inner wall, to reduce the friction between bullet and wall.Curve duct entry end and the latter end curve duct entry end of interlude are all made tubaeform, and the connection and the bullet that are conducive to three sections of curve pipes like this can enter next stage conduit smoothly.Curve conduit is provided with two inspections and examinations windows, is respectively used to the mensuration of velocity of shot and quality, and can taking pictures of Flight Projectile be carried out.
The determination of minimum profile curvature radius and velocity of shot, bullet size, ball intensity etc. of freezing are relevant.When speed one timing, radius-of-curvature is large, and curve conduit is comparatively level and smooth, and bullet is less not easily broken by centrifugal force; Radius-of-curvature is little, and curve conduit is more precipitous, and comparatively great Yi is broken by centrifugal force for bullet.The size of bullet by centrifugal force in curve conduit is calculated by formula 1:
In the present embodiment, according to bullet stress limit δ
tfor (5 ~ 3) × 10
5(N/m
2) and Multi-pellet injection speed (300m/s), the minimum profile curvature radius of estimation curve conduit is 200mm.
The performance test scheme of bullet when curve catheter movement, shown in employing Fig. 4, a straight catheter is laid in bullet gun barrel exit, straight catheter two ends are respectively equipped with a grating and (are comprised one group of LASER Light Source, one group of optical fibre array, one group of photovoltaic converter etc.), a curve conduit is connected in straight catheter exit, curve catheter tip places microwave quality fathometer and a CCD camera, and mainly measurement bullet quality and Flight Projectile are taken pictures.After testing each section of curve conduit, according to test experiments result, the radius-of-curvature of each curve conduit of reasonably optimizing, thus ensure motion bullet complete be injected into plasma from high field side, realize high field side inject bullet.
Claims (1)
1. a pipeline for injecting bullets at high-field side, is connected to discharging vacuum chamber (4), it is characterized in that from pellets injector (1) gun barrel: described pipeline for injecting bullets at high-field side is connected to the high field side of discharging vacuum chamber (4); Described pipeline for injecting bullets at high-field side comprises three sections of crooked pipelines, first paragraph is C pipe, entrance connects pellets injector (1) gun barrel, bullet is made to change the flight path flying to the feeble field side of discharging vacuum chamber (4), second segment is B pipe, entrance connects the outlet of C pipe, makes projectile flight track cross over discharging vacuum chamber (4), arrives high field side from one end, feeble field side; 3rd section is A pipe, and entrance connects the outlet of B pipe, and the discharge plasma (5) in discharging vacuum chamber (4) is pointed in outlet, and for completing reinforced work, each section of bending conduit is directly connected or connected by linear conduit; Catheter diameter gets the 3-5 of bullet diameter doubly, Bian stainless-steel tube, the mechanical buffing of curve pipe inner wall; The curve duct entry end of the curve duct entry end of second segment B pipe and the 3rd section of A pipe is all made tubaeform; Curve conduit is provided with two inspections and examinations windows, for the mensuration of velocity of shot and quality, and the taking pictures of Flight Projectile; Described pipeline for injecting bullets at high-field side and feeble field side filling line are set up in parallel, and are regulated the sensing of pellets injector (1) gun barrel by converter; Converter comprises adjusting screw(rod) (18), studdle (17), corrugated tube (15) and seal flange (16); Studdle (17) one end is fixedly connected with pellets injector (1) gun barrel, and the other end is fixedly connected with the movable end of corrugated tube (15); Between the movable end that adjusting screw(rod) (18) is connected to corrugated tube (15) and stiff end, rotate adjusting screw(rod) (18) and make corrugated tube (15) carry out compressing and extending; The movable end Bian of corrugated tube (15) seal flange (16) sealing, stiff end to be fixed on the housing that seals and surround the outlet of pellets injector (1) gun barrel and pipeline for injecting bullets at high-field side and to ensure impermeability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110215807.3A CN102903398B (en) | 2011-07-29 | 2011-07-29 | Pipeline for injecting pellets from strong field side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110215807.3A CN102903398B (en) | 2011-07-29 | 2011-07-29 | Pipeline for injecting pellets from strong field side |
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| Publication Number | Publication Date |
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| CN102903398A CN102903398A (en) | 2013-01-30 |
| CN102903398B true CN102903398B (en) | 2015-01-07 |
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| CN201110215807.3A Active CN102903398B (en) | 2011-07-29 | 2011-07-29 | Pipeline for injecting pellets from strong field side |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795111B (en) * | 2015-04-21 | 2018-04-17 | 西安交通大学 | A kind of method and device to be fed using electrothermal propulsion to tokamak device |
| CN110689971B (en) * | 2019-10-29 | 2020-12-29 | 中国科学院合肥物质科学研究院 | High-speed projectile centrifugal acceleration system and method |
| CN110767325B (en) * | 2019-10-31 | 2021-04-06 | 中国科学院合肥物质科学研究院 | Method for realizing fusion reactor plasma core charging by using sandwich shot |
| CN113851230B (en) * | 2020-06-28 | 2023-06-13 | 核工业西南物理研究院 | Fusion ultrasonic molecular beam feeding strong beam current beam-focusing device |
| CN113393947B (en) * | 2021-06-07 | 2022-10-21 | 核工业西南物理研究院 | Laser blowing system with strong field side injection |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4115191A (en) * | 1977-06-14 | 1978-09-19 | The United States Of America As Represented By The Secretary Of The Navy | Tokamak plasma heating with intense, pulsed, ion beams |
| CN1697090A (en) * | 2005-04-11 | 2005-11-16 | 中国科学院等离子体物理研究所 | Mode for inpouring fuel into future tokamak type thermonuclear reactor power station |
| CN202189561U (en) * | 2011-07-29 | 2012-04-11 | 核工业西南物理研究院 | Pipeline for injecting bullets at high-field side |
-
2011
- 2011-07-29 CN CN201110215807.3A patent/CN102903398B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4115191A (en) * | 1977-06-14 | 1978-09-19 | The United States Of America As Represented By The Secretary Of The Navy | Tokamak plasma heating with intense, pulsed, ion beams |
| CN1697090A (en) * | 2005-04-11 | 2005-11-16 | 中国科学院等离子体物理研究所 | Mode for inpouring fuel into future tokamak type thermonuclear reactor power station |
| CN202189561U (en) * | 2011-07-29 | 2012-04-11 | 核工业西南物理研究院 | Pipeline for injecting bullets at high-field side |
Non-Patent Citations (2)
| Title |
|---|
| 30管弹丸发射系统真空负荷及多级扩散;肖正贵 等;《真空与低温》;20020331;第8卷(第1期);51-54页 * |
| 徐红兵 等.HL-2A装置中基于循环制冷机的弹丸发射器方案设计.《核聚变与等离子体物理》.2007,第27卷(第1期),131-136. * |
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| CN102903398A (en) | 2013-01-30 |
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