CN1421872A - Fast pulse rod emitter for uranium-hydrogen-zirconium reactor - Google Patents
Fast pulse rod emitter for uranium-hydrogen-zirconium reactor Download PDFInfo
- Publication number
- CN1421872A CN1421872A CN01139732A CN01139732A CN1421872A CN 1421872 A CN1421872 A CN 1421872A CN 01139732 A CN01139732 A CN 01139732A CN 01139732 A CN01139732 A CN 01139732A CN 1421872 A CN1421872 A CN 1421872A
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- cylinder
- rod
- uranium
- piston
- hydrogen
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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
- Y02E30/30—Nuclear fission reactors
Abstract
The present invention relates to the control of reactor and is especially fast pulse rod emitter of uranium-hydrogen-zirconium reactor. There are impact cylinder with piston inside it, piston rod connected to the piston, pulse rod fixed to the lower end of the piston rod; energy accumulating cylinder outside the impact cylinder and connected to the impact cylinder via its intake hole; buffering cylinder below the impact cylinder and with through hole in the lower part for the pulse rod to run, degasing hole on the outer wall, buffering piston, buffering spring and electromagnecitc armature. Two pressurizing in the piston rod communicates the energy accumulating cylinder and the buffering cylinder before emitting. The length of both impact cylinder and the buffering cylinder is greater than the height of the reactor core.
Description
Technical field
The invention belongs to reactor control field, be specifically related to a kind of fast-pulse rod emitter of uranium zirconium hydride reactor.
Background technology
Uranium zirconium hydride reactor is the advanced research reactor that can realize prompt supercriticality and have inherently safe performance, and its pulse emitter is a key equipment of introducing big reactivity, emission persistent erection subpulse.China successfully develops PRC-1 type uranium zirconium hydride reactor and pulse emitter July nineteen ninety, nearly in the world at present more than 60 uranium hydrogen zirconium pulsed reactors are in operation, and removing two is that China develops, and all the other are U.S.'s development.But there is following shortcoming mostly in its pulse emitter: (1) emission rate is lower, can't make the bigger raising of peak power of heap; (2) impact damper is located at the cylinder top, adopts push mode buffering form, piston rod is yielding, breaks down; (3) plant failure rate height, mission life is low.
Summary of the invention
The objective of the invention is to defective, a kind of emission rate, minimizing fault, raising emitter operational reliability and stability, increase non-fault pulse emitting times and the fast-pulse of emission phase in longevity rod emitter that can further improve burst rod is provided at above burst rod emitter.
Technical scheme of the present invention is as follows: fast pulse rod emitter for uranium-hydrogen-zirconium reactor, be provided with piston in its blow cylinder, be connected with piston rod on the piston, piston-rod lower end fixedly connected burst rod; Be provided with loaded cylinder outside blow cylinder, loaded cylinder communicates with blow cylinder by the air admission hole that blow cylinder is provided with, and loaded cylinder is provided with valve; The blow cylinder bottom is provided with bounce cylinder, two pressurized holes that piston rod is provided with make loaded cylinder be communicated with bounce cylinder before the device emission, through hole, outer wall that the lower end of bounce cylinder is provided with the burst rod operation are provided with the hole of cooling down, and are provided with damper piston, buffer spring and electromagnet armature successively on the damper piston in the bounce cylinder.The length of blow cylinder and bounce cylinder is all greater than the height of reactor core.
Owing to set up loaded cylinder, overcome " bottleneck " effect of valve, and loaded cylinder and blow cylinder be one, the form drag minimum of air-flow makes air feed speed reach optimum condition, has improved air feed speed to greatest extent; In addition, because the length of blow cylinder and bounce cylinder is all greater than core height, make the burst rod emitter have one section pre-transmitter section, therefore can in the burst rod body, increase and the pre-isometric neutron absorber portion of transmitter section, when burst rod started to walk to move upward to pre-firing altitude from the heap end, the heap reactivity is in immovable state always, when the reactor core lower grid plate has just been left in burst rod neutron absorber portion lower end, when beginning to introduce positive reactivity, this moment, excellent body had certain initial velocity, when continuing to quicken to move upward to the limit, can obtain than starting faster speed from rest point.Pre-transmitter section is set, can under the constant situation of working pressure, excellent speed is doubled, otherwise working pressure will improves 4 times; Because buffer gear has been arranged on the blow cylinder bottom, therefore the power effect that only stretched of piston and elongated piston rod can not produce flexural deformation, has eliminated the maximum root that the pulse emitter breaks down.
Description of drawings
Fig. 1 is the structural representation of fast pulse rod emitter for uranium-hydrogen-zirconium reactor.
1. pressurized holes, 2. sealing flanges, 3. piston rods, 4. vent ports, 5. blow cylinders among the figure
6. loaded cylinder 7. valves 8. pistons 9. air intake openings 10. bounce cylinders 11. damper pistons
Hole 13. buffer springs 14. electromagnet armatures 15. electromagnet 12. cool down
Embodiment
As shown in the figure, fast pulse rod emitter for uranium-hydrogen-zirconium reactor is made of blow cylinder 5, loaded cylinder 6 and bounce cylinder 10 etc.The top of blow cylinder 5 is provided with vent port 4, and the total area that the lower end is provided with some air admission holes 9, air admission hole equals the net sectional area of blow cylinder.Be provided with piston 8 in the blow cylinder 5, piston 8 passes through the O-ring seal wringing fit with blow cylinder 5 inwalls, piston 8 is connected with piston rod 3, and being provided with two pressurized holes 1 in the appropriate location of piston rod 3, two pressurized holes 1 that are provided with on by piston rod 3 before the device emission make loaded cylinder 6 be communicated with bounce cylinder 10.The blow cylinder 5 outer loaded cylinders 6 that are provided with, blow cylinder 5 and loaded cylinder 6 are respectively the cylinder seal on same base of inside and outside two concentrics, and loaded cylinder is provided with valve 7.Loaded cylinder 6 communicates with blow cylinder 5 by the air admission hole 9 of blow cylinder 5 lower ends.The bottom of blow cylinder 5 is provided with bounce cylinder 10, the outer wall of bounce cylinder 10 is provided with through hole, the upper end that the hole 12 of cooling down, lower end be provided with the burst rod operation and is provided with base, this base matches with the base of blow cylinder 5 and loaded cylinder 6, the bottom inwall of bounce cylinder 10 is provided with liner, its liner is arranged on the bottom in the hole 12 of cooling down, and makes that the internal diameter of bounce cylinder 10 lower ends is littler than the internal diameter of other parts.Electromagnet 15 is fixed on the lower end in the bounce cylinder 10, and its electromagnet 15 is provided with the through hole of burst rod operation.Piston rod 3 passes seal bore, the damper piston 11 middle through holes that are provided with and the buffering spring 13 in the middle of the sealing flange 2 successively, and its lower end is connected with electromagnet armature 14, and electromagnet armature 14 can be with piston rod 3 motions.The base of bounce cylinder 10 is tightly connected by the base of sealing flange 2 with blow cylinder 5, and piston rod 3 and the damper piston 11, buffer spring 13 and the electromagnet armature 14 that are provided with on it have entered bounce cylinder 10.Damper piston 11 is arranged on the appropriate location in the bounce cylinder 10, inwall wringing fit by packing washer and bounce cylinder 10, electromagnet armature 14 passes through the packing washer wringing fit with the liner of bounce cylinder 10, and the buffer spring 13 that is enclosed within on the piston rod 3 is positioned on the electromagnet armature 14.The fixedly connected burst rod in the lower end of piston rod 3.
In addition, the length of blow cylinder and bounce cylinder is all greater than the height of reactor core, and the total travel that makes piston has more 20cm than the height of reactor core, thereby makes the body of burst rod can increase by one section isometric with it neutron absorber portion.
Before the pulse emission, piston is at the blow cylinder foot, and pressurized air is inflated loaded cylinder through valve, and reaches specified air pressure, owing to have two pores that loaded cylinder is communicated with bounce cylinder on the piston rod, so the pressure gas of loaded cylinder can enter bounce cylinder at this moment and makes it to reach equalized pressure.During emission, loaded cylinder gas promotes piston to blow cylinder bottom air feed fast with the air admission hole that equals the cylinder net sectional area and moves upward, and this moment, blow cylinder and bounce cylinder were isolated fully.When end of travel is arrived in piston motion, piston rod drive electromagnet armature and spring have moved to the top of bounce cylinder, electromagnet armature was subjected to the resistance of spring before this, length of spring compressed then upwards promotes damper piston after to a certain degree, rising along with damper piston, the cushion dashpot internal pressure raises gradually, and the resistance that actuator is subjected to is increasing, finally makes burst rod rise to peak and stops.
Because big many of loaded cylinder volumetric ratio volume of cylinder, generally more than 5 times, the rising of piston changes very little to the volume ratio of system, so piston almost is to move upward under the pressure that equates with working pressure promotes, the acquisition maximal rate.
After once emission finishes, discharge gases at high pressure, pressure is descended, to the original position, electromagnetic actuation armature resets device by gravity fall for piston rod and burst rod, prepares emission next time.
Claims (8)
1. fast pulse rod emitter for uranium-hydrogen-zirconium reactor, comprise blow cylinder (5) and the snubber assembly that is connected with blow cylinder (5), the top of blow cylinder (5) be provided with vent port 4, in be provided with piston (8), be connected with piston rod (3) on the piston (8), piston rod (3) lower end fixedly connected burst rod, it is characterized in that: the outer loaded cylinder (6) that is provided with of blow cylinder (5), loaded cylinder (6) communicates with blow cylinder (5) by some air admission holes (9) that blow cylinder (5) lower end outer wall is provided with, and loaded cylinder (6) is provided with valve (7).
2. fast pulse rod emitter for uranium-hydrogen-zirconium reactor as claimed in claim 1, it is characterized in that: described snubber assembly is bounce cylinder (10), it is located at the bottom of blow cylinder (5), piston rod (3) is provided with two pressurized holes (1), before the device emission, loaded cylinder (6) is communicated with bounce cylinder (10), the lower end of bounce cylinder (10) is provided with the through hole of burst rod operation, outer wall is provided with the hole of cooling down (12), is provided with damper piston (11), buffer spring (13) and electromagnet armature (14) successively on the piston rod (3) in the bounce cylinder (10).
3. fast pulse rod emitter for uranium-hydrogen-zirconium reactor as claimed in claim 2, it is characterized in that: the interior bottom of bounce cylinder (10) is provided with liner, make the internal diameter of the interior bottom of bounce cylinder (10) less than the internal diameter of other parts, lower end in bounce cylinder (10) is provided with electromagnet (15) simultaneously, and electromagnet (15) is provided with the through hole of burst rod operation.
4. as claim 1 or 2 or 3 described fast pulse rod emitter for uranium-hydrogen-zirconium reactor, it is characterized in that: the length of blow cylinder (5) and bounce cylinder (10) is all greater than the height of reactor core.
5. fast pulse rod emitter for uranium-hydrogen-zirconium reactor as claimed in claim 1 is characterized in that: the total area of air admission hole (9) equals the net sectional area of blow cylinder (5).
6. fast pulse rod emitter for uranium-hydrogen-zirconium reactor as claimed in claim 1 is characterized in that: blow cylinder (5) and loaded cylinder (6) are respectively the cylinder seal of inside and outside two concentrics.
7. fast pulse rod emitter for uranium-hydrogen-zirconium reactor as claimed in claim 3 is characterized in that: the liner of the interior bottom of bounce cylinder (10) is located at the bottom of the hole of cooling down (12).
8. fast pulse rod emitter for uranium-hydrogen-zirconium reactor as claimed in claim 2 is characterized in that: be connected by sealing flange (2) between blow cylinder (5) and the bounce cylinder (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011397322A CN1180437C (en) | 2001-11-29 | 2001-11-29 | Fast pulse rod emitter for uranium-hydrogen-zirconium reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011397322A CN1180437C (en) | 2001-11-29 | 2001-11-29 | Fast pulse rod emitter for uranium-hydrogen-zirconium reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1421872A true CN1421872A (en) | 2003-06-04 |
| CN1180437C CN1180437C (en) | 2004-12-15 |
Family
ID=4675370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011397322A Expired - Lifetime CN1180437C (en) | 2001-11-29 | 2001-11-29 | Fast pulse rod emitter for uranium-hydrogen-zirconium reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1180437C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217771A (en) * | 2014-07-10 | 2014-12-17 | 西南交通大学 | Pulse stick driving mechanism |
| CN106837924A (en) * | 2017-04-21 | 2017-06-13 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of blow cylinder device |
-
2001
- 2001-11-29 CN CNB011397322A patent/CN1180437C/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217771A (en) * | 2014-07-10 | 2014-12-17 | 西南交通大学 | Pulse stick driving mechanism |
| CN104217771B (en) * | 2014-07-10 | 2016-08-24 | 西南交通大学 | A kind of burst rod drive mechanism |
| CN106837924A (en) * | 2017-04-21 | 2017-06-13 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of blow cylinder device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1180437C (en) | 2004-12-15 |
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Granted publication date: 20041215 |