CN106932808B - Long pulse initiative water-cooling heat target large-flow special-shaped waterway structure - Google Patents
Long pulse initiative water-cooling heat target large-flow special-shaped waterway structure Download PDFInfo
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- CN106932808B CN106932808B CN201511018463.1A CN201511018463A CN106932808B CN 106932808 B CN106932808 B CN 106932808B CN 201511018463 A CN201511018463 A CN 201511018463A CN 106932808 B CN106932808 B CN 106932808B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/1606—Measuring radiation intensity with other specified detectors not provided for in the other sub-groups of G01T1/16
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/006—Total absorption calorimeters; Shower detectors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/29—Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
- G01T1/2907—Angle determination; Directional detectors; Telescopes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/29—Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
- G01T1/2914—Measurement of spatial distribution of radiation
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- G—PHYSICS
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- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
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Abstract
The invention belongs to the technical field of water network connection in a narrow space under high vacuum conditions in a water-cooling pipeline of a neutral beam injector calorimeter target of a magnetic confinement nuclear fusion research tokamak device and other engineering equipment, and particularly relates to a special-shaped waterway structure with a large flow of a long-pulse active water-cooling calorimeter target. The special-shaped waterway structure is applied to a 5MW-NBI heating beam line core component-active water-cooling calorimetric target of an HL-2M tokamak device, is used as a component part of the 5MW-NBI heating beam line calorimetric target, and is combined with a W-shaped multi-plate active water-cooling structure calorimetric target plate and a lifting and guiding mechanism to jointly complete all functions of the whole calorimetric target. The neutral beam injector calorimetric target is used as a magneto-restrictive fusion experimental device and an indispensable component in a future fusion engineering push NBI heating system and is used for detecting large-area strong-beam power and power density distribution measurement. The invention is one of the indispensable components of the calorimetric target, and provides a fully effective large-flow cooling water loop for the calorimetric target.
Description
Technical Field
The invention belongs to the technical field of water network connection in a narrow space under high vacuum conditions in a water-cooling pipeline of a neutral beam injector calorimeter target of a magnetic confinement nuclear fusion research tokamak device and other engineering equipment, and particularly relates to a special-shaped waterway structure with a large flow of a long-pulse active water-cooling calorimeter target.
Background
Neutral Beam Injection (NBI) is one of the most effective methods to heat magnetically confined plasma, either to raise ion temperature or electron temperature, while NBI is also used to drive plasma current and control plasma performance. A neutral beam implanter including an ion source is a core system of a neutral beam heating system, consisting essentially of: an ion source, an injector vacuum chamber, a neutralization chamber disposed within the vacuum chamber, an ion phagocytosis device, a deflection magnet, a beam edge scraper, a calorimetric target, a high-pumping vacuum pump, and the like. The method mainly completes the physical processes of plasma generation, ion beam extraction and acceleration, ion beam neutralization, residual ion beam deflection, neutral beam geometric convergence, neutral beam injection and the like. The injector also has the functions of beam performance diagnosis, beam power measurement, component safety monitoring, high pumping speed vacuum operation and the like.
Calorimetric targets are devices that measure beam power by calorimetry. And after the beam particles strike the calorimetric target, the deposited heat is taken away by cooling water, and the temperature difference between the outlet and the inlet of the water and the flow of the water are measured, so that the received beam power can be calculated. In addition to this, it has the following functions: measuring the beam distribution by measuring the temperature rise of a thermocouple array embedded on the calorimetric target, and diagnosing the beam divergence angle; for monitoring beam centering; the ion source is used for cutting off the beam and absorbing the power of the beam when the ion source exercises. The beam heat targets are divided into active cooling heat targets and passive cooling heat targets, the active cooling heat targets adopt large-flow cooling water, deposited energy is timely taken away in running beam pulses, namely, in running pulses, the surface temperature of the heat targets is enabled to be at a safe balance temperature through instantaneous fluid heat exchange. The passive cooling calorimetric target is to slowly take away the energy deposited in the calorimetric target by the cooling water in the beam pulse interval. An active water-cooled calorimetric target is the component that bears the highest thermal load of the neutral beam implanter.
When a 5MW neutral beam injector matched with an HL-2M tokamak device is independently debugged and operated, a calorimetric target is required to be adopted for beam power measurement and beam power density distribution diagnosis, under the working condition, the calorimetric target bears about 60% of extraction power, the limit value reaches 3MW, the thermal load is extremely high, and the power density of a central area can even reach 6.5kW/cm 3 It is therefore necessary to provide a high flow cooling water circuit to instantaneously transfer the high energy deposited therein. The neutral beam heat target adopts a multi-plate active water-cooling structure, 40 copper bar grid plates in total, and each grid plate adopts a cooling water path structure of one inlet and one outlet, namely 40 water inlet paths and 40 water outlet paths in total.
The 5MW neutral beam injector has limited internal space, the components are arranged very compactly, and the space reserved for the cooling water path of the calorimetric target is only about 850mm (length) x 800mm (width) x 400mm (height). In the narrow space, the total of 80 water pipes of 40 water inlet waterways and 40 water outlet waterways are distributed, and a sufficient assembly space is reserved, so that the design of the waterway structure is high in requirement.
Disclosure of Invention
The invention aims to solve the technical problem of providing a special-shaped waterway structure with large flow of a long-pulse active water-cooling calorimeter target, so that the requirement of large flow cooling water required by the long-pulse active water-cooling calorimeter target of a 5MW neutral beam injector of an HL-2M device is met, and a sufficient water pipe assembly space is reserved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a large-flow special-shaped waterway structure of a long-pulse active water-cooling heat target is applied to a core component of a 5MW-NBI heating beam line of an HL-2M tokamak device, is taken as a component of the 5MW-NBI heating beam line heat target, and is combined with a W-shaped multi-plate active water-cooling structure heat target plate and a lifting and guiding mechanism to jointly complete all functions of the whole heat target;
(1) The rigid main water pipe for entering and exiting the calorimetric target is connected with a circulating water system, and comprises a main water inlet pipe and a main water outlet pipe, wherein the sizes of the main water inlet pipe and the main water outlet pipe are DN80;
(2) The calorimetric target comprises 40 copper bar grid plates, wherein the top end of each copper bar grid plate is provided with a water inlet pipe and a water outlet pipe respectively by adopting a pipeline structure of one inlet pipe and one outlet pipe, a U-shaped cooling pipeline is arranged in each copper bar grid plate, and the diameter of the U-shaped cooling pipeline is consistent with the diameters of the water inlet pipe and the water outlet pipe; cooling water flows into the U-shaped cooling pipeline after entering the copper bar grid plate from the water inlet pipe, and flows out from the water outlet pipe;
(3) The water separator comprises an upper water collector and a lower water separator;
each W-shaped water separator adopts a one-inlet-multiple-outlet structure and comprises a W-shaped plate and 40 DN12 pipelines perpendicular to the W-shaped plate; the W-shaped plate and the 40 pipelines are communicated with each other; the pressure level of the W-shaped plate is consistent with that of the main water inlet pipe;
the cooling water firstly enters the W-shaped plate in the lower water separator through the main water inlet pipe, 40 pipelines in the lower water separator are respectively communicated with the water inlet pipes in 40 copper bar grid plates of the calorimetric target, and the cooling water flows into the water inlet pipes in 40 copper bar grid plates of the calorimetric target through 40 pipelines in the lower water separator so as to flow into the 40 copper bar grid plates of the calorimetric target for cooling;
the W-shaped plate of the lower water separator is provided with a circular hole array, 40 pipelines in the upper water collector pass through the circular holes and are respectively communicated with the water outlet pipes in the 40 copper bar grid plates of the calorimetric target, cooling water circulates in the 40 copper bar grid plates of the calorimetric target and then is converged into the W-shaped plate of the upper water separator through the 40 water outlet pipes, and the cooling water is converged in the W-shaped plate and then enters the main water outlet pipe.
Furthermore, according to the special-shaped waterway structure with the large flow of the long-pulse active water-cooling heat target, the pressure level of the main water inlet pipe and the pressure level of the main water outlet pipe are both set to be twice the outlet pressure of the circulating water pump.
Further, according to the special-shaped waterway structure with the large flow of the long-pulse active water-cooling heat target, the upper water collector and the lower water separator are respectively placed on the flat plates, and the flat plates for placing the upper water collector and the lower water separator are connected through the connecting rod.
The technical scheme of the invention has the beneficial effects that:
(1) The neutral beam injector calorimetric target is used as a magneto-restrictive fusion experimental device and an indispensable component in a future fusion engineering push NBI heating system and is used for detecting large-area strong-beam power and power density distribution measurement. The invention is one of the indispensable components of the calorimetric target, and provides a fully effective large-flow cooling water loop for the calorimetric target.
(2) The HL-2M device can develop 3 5MW-NBI heating beam lines, and the invention can be directly matched with calorimetric targets of the two beam lines for use, thereby providing conditions for magneto-restrictive nuclear fusion research.
(3) The invention relates to a special-shaped waterway mechanism designed for a narrow space of a vacuum environment of a 5MW neutral beam injector, which can be applied to other equipment which is positioned in the narrow space and is difficult to assemble a water pipe.
Drawings
Fig. 1 and 2 are schematic diagrams of an active water-cooling heat target special-shaped waterway mechanism.
In the figure: a main water inlet pipe 1, a main water outlet pipe 2, an upper water collector 3, a lower water separator 4, an upper water collector pipeline 5, a lower water separator pipeline 6, a flat plate 7, a connecting rod 8 and a heat measuring target 9.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the attached drawings and specific embodiments.
As shown in fig. 1 and 2, the large-flow special-shaped waterway structure of the long-pulse active water-cooling calorimeter target is applied to a 5MW-NBI heating beam line core component of an HL-2M tokamak device, is taken as a component of the 5MW-NBI heating beam line calorimeter target, and is combined with a W-shaped multi-plate active water-cooling structure calorimeter target plate and a lifting and guiding mechanism to jointly complete all functions of the whole calorimeter target;
(1) The rigid main water pipe for entering and exiting the calorimetric target is connected with a circulating water system, and comprises a main water inlet pipe and a main water outlet pipe, wherein the sizes of the main water inlet pipe and the main water outlet pipe are DN80;
(2) The calorimetric target comprises 40 copper bar grid plates, wherein the top end of each copper bar grid plate is provided with a water inlet pipe and a water outlet pipe respectively by adopting a pipeline structure of one inlet pipe and one outlet pipe, a U-shaped cooling pipeline is arranged in each copper bar grid plate, and the diameter of the U-shaped cooling pipeline is consistent with the diameters of the water inlet pipe and the water outlet pipe; cooling water flows into the U-shaped cooling pipeline after entering the copper bar grid plate from the water inlet pipe, and flows out from the water outlet pipe;
(3) The water separator comprises an upper water collector and a lower water separator;
each W-shaped water separator adopts a one-inlet-multiple-outlet structure and comprises a W-shaped plate and 40 DN12 pipelines perpendicular to the W-shaped plate; the W-shaped plate and the 40 pipelines are communicated with each other; the pressure level of the W-shaped plate is consistent with that of the main water inlet pipe;
the cooling water firstly enters the W-shaped plate in the lower water separator through the main water inlet pipe, 40 pipelines in the lower water separator are respectively communicated with the water inlet pipes in 40 copper bar grid plates of the calorimetric target, and the cooling water flows into the water inlet pipes in 40 copper bar grid plates of the calorimetric target through 40 pipelines in the lower water separator so as to flow into the 40 copper bar grid plates of the calorimetric target for cooling;
the W-shaped plate of the lower water separator is provided with a circular hole array, 40 pipelines in the upper water collector pass through the circular holes and are respectively communicated with the water outlet pipes in the 40 copper bar grid plates of the calorimetric target, cooling water circulates in the 40 copper bar grid plates of the calorimetric target and then is converged into the W-shaped plate of the upper water separator through the 40 water outlet pipes, and the cooling water is converged in the W-shaped plate and then enters the main water outlet pipe. The water outlet pipeline of the upper water separator and the water outlet pipeline of the lower water separator are orderly arranged, dislocation and mechanical interference are avoided, when the water pipes are assembled, the wrench can extend in from the outer side, and when the wrench is rotated, the wrench cannot be blocked by the adjacent water pipes.
The upper water collector and the lower water separator are respectively arranged on the flat plates, and the flat plates on which the upper water collector and the lower water separator are arranged are connected through a connecting rod.
In this embodiment, the outlet pressure of the main circulating water pump equipped with the neutral beam injector water network is adjustable by 20 kg, and the pressure levels of the main water inlet pipe and the main water outlet pipe are both set to be twice the outlet pressure of the circulating water pump, namely 40 kg. The whole waterway has twice hydraulic engineering allowance, and the sealing adopts a vacuum sealing standard, so that the water pipe is ensured not to leak in a vacuum environment. Through calculation, 120m3/h of cooling water can be provided by the waterway, and instant cooling can be realized.
The special-shaped waterway mechanism occupies a space of 842.5mm (length) ×770mm (width) ×479mm (height). And 80 DN12 cooling water pipelines are distributed in the narrow space, are staggered to form a W shape identical to the calorimetric target, and leave sufficient assembly space for water supply pipe connection.
Claims (3)
1. A large-flow special-shaped waterway structure of a long-pulse active water-cooling heat target is applied to a core component of a 5MW-NBI heating beam line of an HL-2M tokamak device, is taken as a component of the 5MW-NBI heating beam line active water-cooling heat target, and is combined with a W-shaped multi-plate active water-cooling structure heat target plate and a lifting and guiding mechanism to jointly complete all functions of the whole heat target; the method is characterized in that:
(1) The rigid main water pipe for entering and exiting the calorimetric target is connected with a circulating water system, and comprises a main water inlet pipe and a main water outlet pipe, wherein the sizes of the main water inlet pipe and the main water outlet pipe are DN80;
(2) The calorimetric target comprises 40 copper bar grid plates, wherein the top end of each copper bar grid plate is provided with a water inlet pipe and a water outlet pipe respectively by adopting a pipeline structure of one inlet pipe and one outlet pipe, a U-shaped cooling pipeline is arranged in each copper bar grid plate, and the diameter of the U-shaped cooling pipeline is consistent with the diameters of the water inlet pipe and the water outlet pipe; cooling water flows into the U-shaped cooling pipeline after entering the copper bar grid plate from the water inlet pipe, and flows out from the water outlet pipe;
(3) The special-shaped waterway structure comprises W-shaped water separators which are distributed in parallel up and down, wherein each W-shaped water separator comprises an upper water collector and a lower water separator;
each W-shaped water separator adopts a one-inlet-multiple-outlet structure and comprises a W-shaped plate and 40 DN12 pipelines perpendicular to the W-shaped plate; the W-shaped plate and the 40 pipelines are communicated with each other; the pressure level of the W-shaped plate is consistent with that of the main water inlet pipe;
the cooling water firstly enters the W-shaped plate in the lower water separator through the main water inlet pipe, 40 pipelines in the lower water separator are respectively communicated with the water inlet pipes in 40 copper bar grid plates of the calorimetric target, and the cooling water flows into the water inlet pipes in 40 copper bar grid plates of the calorimetric target through 40 pipelines in the lower water separator so as to flow into the 40 copper bar grid plates of the calorimetric target for cooling;
the W-shaped plate of the lower water separator is provided with a circular hole array, 40 pipelines in the upper water collector pass through the circular holes and are respectively communicated with the water outlet pipes in the 40 copper bar grid plates of the calorimetric target, cooling water circulates in the 40 copper bar grid plates of the calorimetric target and then is converged into the W-shaped plate of the upper water separator through the 40 water outlet pipes, and the cooling water is converged in the W-shaped plate and then enters the main water outlet pipe.
2. The special-shaped waterway structure of the long-pulse active water-cooling heat target with high flow rate as claimed in claim 1, wherein: the pressure level of the main water inlet pipe and the main water outlet pipe is set to be twice of the outlet pressure of the circulating water pump.
3. The special-shaped waterway structure of the long-pulse active water-cooling heat target with high flow rate as claimed in claim 1, wherein: the upper water collector and the lower water separator are respectively arranged on the flat plates, and the flat plates on which the upper water collector and the lower water separator are arranged are connected through a connecting rod.
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| CN108828648A (en) * | 2018-06-21 | 2018-11-16 | 山东新华医疗器械股份有限公司 | A kind of reliability test device and method of electron linear accelerator target assembly |
| CN112992388A (en) * | 2019-12-12 | 2021-06-18 | 核工业西南物理研究院 | Calorimetric target water path and target plate opening and closing structure based on magnetic fluid vacuum sealing |
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| CN1286389A (en) * | 1999-09-01 | 2001-03-07 | 巴尔的摩汽圈公司 | Sheet filled lamination for generating spiral air flow in heat and mass exchange and contact device |
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| US4343760A (en) * | 1979-11-14 | 1982-08-10 | The United States Of America As Represented By The United States Department Of Energy | Divertor target for magnetic containment device |
| DE69841746D1 (en) * | 1998-09-11 | 2010-08-12 | Gsi Helmholtzzentrum Schwerionenforschung Gmbh | Ion beam therapy system and method of operation of the system |
| JP3668017B2 (en) * | 1998-10-23 | 2005-07-06 | 日本原子力研究所 | Acceleration power source for ion source of neutral particle injector |
| JP2000180600A (en) * | 1998-12-11 | 2000-06-30 | Hitachi Ltd | Solid target and neutron generator |
| CN201498221U (en) * | 2009-09-10 | 2010-06-02 | 中国科学院等离子体物理研究所 | Special welding structure of cooling water pipe for internal part for super-conducting Tokamak vacuum vessel |
| EP2752099B1 (en) * | 2011-09-02 | 2017-07-05 | Tokamak Energy Ltd | Efficient compact fusion reactor |
| CN202226028U (en) * | 2011-09-09 | 2012-05-23 | 海南绿航水下清洗科技有限公司 | Underwater cavitation cleaning system for ship |
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| CN104157312B (en) * | 2014-08-29 | 2017-01-18 | 中国工程物理研究院核物理与化学研究所 | Modular type fusion-and-fission hybrid reactor cladding fuel section based on Z pinch driving |
| CN205539500U (en) * | 2015-12-30 | 2016-08-31 | 核工业西南物理研究院 | Large -traffic special -shaped waterway structure of long pulse initiative water -cooling calorimetry target |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1075341A (en) * | 1992-02-13 | 1993-08-18 | 核工业西南物理研究院 | Vertical metal industrial ion implantation machine of strong current |
| JPH11133199A (en) * | 1997-11-04 | 1999-05-21 | Hitachi Ltd | Solid target and solid target system |
| CN1286389A (en) * | 1999-09-01 | 2001-03-07 | 巴尔的摩汽圈公司 | Sheet filled lamination for generating spiral air flow in heat and mass exchange and contact device |
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