CN105651564B - Helium volumetric ratio measuring device in a kind of fuel rod sting device and fuel rod - Google Patents
Helium volumetric ratio measuring device in a kind of fuel rod sting device and fuel rod Download PDFInfo
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- CN105651564B CN105651564B CN201511028427.3A CN201511028427A CN105651564B CN 105651564 B CN105651564 B CN 105651564B CN 201511028427 A CN201511028427 A CN 201511028427A CN 105651564 B CN105651564 B CN 105651564B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2226—Sampling from a closed space, e.g. food package, head space
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
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Abstract
The present invention relates to helium volumetric ratio field of measuring technique in fuel rod, and in particular to a kind of fuel rod sting device.The device measuring chamber right end processing blind hole, sealing pressure head centre processing through-hole, sealing pressure head are arranged at the blind hole of measuring chamber, and fuel rod passes through the through-hole of sealing pressure head to be passed through in measuring chamber；Measuring chamber left end processes venthole, and venthole connects the blind hole of measuring chamber, and air source distributor is arranged at the venthole of measuring chamber, and air source distributor is connect with gas chromatograph, and gas componant is detected；The processing of measuring chamber top punctures blind hole, blind hole is punctured to connect with the blind hole of measuring chamber, the swivel head of piercing mechanism is arranged at the puncture blind hole on measuring chamber top, the trepanning of swivel head or so end face, coordinate with handle, swivel head lower end connects shank, shank lower end setting syringe needle, and shank can move up and down along the puncture blind hole of measuring chamber.Sealing effect of the present invention is good, improves device vacuum degree, improves the accuracy of testing result.
Description
Technical field
The present invention relates to helium volumetric ratio field of measuring technique in fuel rod, and in particular to a kind of fuel rod sting device and combustion
Helium volumetric ratio measuring device in charge bar.
Background technology
It with the continuously improving of nuclear fuel element manufacturing technology, updates, to the quality control in nuclear fuel element manufacturing process
System, detection technique also proposed higher requirement.And in fuel rod manufacturing process, the inspection to its inner space helium volumetric ratio
It surveys, is a new detection project.
As shown in Figure 1, helium volumetric ratio is measured using impurity deduction method measure in sample stick, fuel rod is first encapsulated into combustion
Helium volumetric ratio measuring device in charge bar after device is vacuumized and hunted leak, uses " puncture needle " to puncture sample stick, so as to
Helium in stick is smoothly discharged into closed cavity, and gas chromatograph for determination is used in a manner that pipeline sample introduction or sampler sample
Go out Ne, H in sample gas2、O2、N2、CH4、CO、CO2Content, finally by calculate deduct impurity content, obtain helium volumetric ratio.
Existing fuel rod sting device (dotted line frame inside points in Fig. 1) has the following disadvantages：
1) sealing structure of sting device puncture needle is sealed by the way of rubber ring compression, will to the roughness of puncturing lever
Ask higher, and due to puncture when shank to rotate downwards, it is necessary to coating seal vacuum ester just can guarantee sealing, it is inconvenient for operation
And it is possible that the system of contamination, vacuum degree is bad to reach specified value.
2) the seal with elastometic washer structure operation that fuel rod hermetic unit uses is inconvenient, easily damages rubber ring by pressure, seals
Property it is inadequate, and the part only adapts to a kind of sealing of specification fuel rod, and adaptability is inadequate.
3) air source distributor part is connect with sting device main part using rubber ring pressing sealing structure, and operation is very not
Convenient, the quality and compaction degree of sealing ring can all influence leakproofness, influence device overall vacuum degree.
4) the helium volumetric ratio that existing sting device can only be directed in the fuel rod of a certain model is detected, Wu Fajian
The fuel rod of other models is surveyed, the adaptability for leading to helium volumetric ratio measuring device in existing fuel rod is poor.
Invention content
For the above-mentioned prior art, the present invention will provide helium volumetric ratio in a kind of fuel rod sting device and fuel rod and measure
Device, to solve poor sealing in the prior art, sting device vacuum degree is not high, causes testing result error larger etc. and asks
Topic.
In order to solve the above-mentioned technical problem, a kind of fuel rod sting device of the present invention, including sealing pressure head, piercing mechanism,
Measuring chamber, air source distributor and valve；Measuring chamber right end processing blind hole, sealing pressure head centre processing through-hole, sealing pressure head setting
At the blind hole of measuring chamber right end, fuel rod passes through the through-hole of sealing pressure head to be passed through in measuring chamber；The processing ventilation of measuring chamber left end
Hole, the blind hole of venthole connection measuring chamber right end processing, air source distributor are arranged at measuring chamber left end venthole, air source distribution
Device left end sets valve, and valve connect with gas chromatograph, gas componant is detected；The processing of measuring chamber top punctures blind
Hole punctures blind hole and is connected with the blind hole that measuring chamber right end is processed, and piercing mechanism includes handle, swivel head, shank and syringe needle, rotation
Head is arranged at the puncture blind hole on measuring chamber top, the trepanning of swivel head or so end face, is coordinated with handle, swivel head lower end connection needle
Bar, shank lower end setting syringe needle, shank can move up and down along the puncture blind hole of measuring chamber.
Further the device further includes the first clamping sleeve and the first sealing ring；The blind hole of the measuring chamber right end processing is three
Grade ladder blind hole, the stepped hole of internal diameter minimum and fuel rod assembling, the stepped hole of internal diameter maximum is in measuring chamber right end, and internal diameter is most
Machining internal thread in big stepped hole is sealed in left section of outer wall threading of pressure head, with measuring chamber internal diameter maximum stepped hole and is added
The screw-internal thread fit of work, the first clamping sleeve of setting in the stepped hole among measuring chamber, fuel rod pass through sealing pressure head through-hole and
First clamping sleeve is passed through in measuring chamber, and the first sealing ring is equipped at the stepped hole cooperation among the first clamping sleeve and measuring chamber, close
When sealing pressure head with measuring chamber cooperation, left side is contacted with the first clamping sleeve, can provide pressing force for the first clamping sleeve.
Further the device further includes the 4th sealing ring and screw；The air source distributor is arranged on the ventilation of measuring chamber left end
At hole, the 4th sealing ring is set between air source distributor and measuring chamber, air source distributor is arranged on measuring chamber left end by screw,
Air source distributor left end sets valve, and valve connect with gas chromatograph, gas componant is detected；Air source distributor left end
Multiple valves are also set up, connect pressure gauge, vacuum pump and vacuum measurement equipment respectively.
Piercing mechanism described further further includes the second sealing ring, the second clamping sleeve, lock sleeve and third sealing ring；It measures
The puncture blind hole position of room upper end is provided with bulge loop, bulge loop outer wall threading, processing two level stepped hole inside lock sleeve, and two
Grade stepped hole all machining internal thread, external screw threads that the internal thread of lock sleeve hypomere stepped hole is processed with measuring chamber bulge loop outer wall are matched
It closes, third sealing ring is set at the internal thread of lock sleeve hypomere stepped hole and the external screw thread cooperation of measuring chamber bulge loop outer wall processing,
The second clamping sleeve of setting in lock sleeve, the second clamping sleeve is with setting the second sealing ring at measuring chamber bulge loop cooperation；Swivel head or so
End face trepanning coordinates, swivel head lower face processing blind hole with handle, setting shank in blind hole, shank lower end setting syringe needle, rotation
Head hypomere outer wall threading, with lock sleeve epimere stepped hole epimere screw-internal thread fit, shank passes through the stepped hole of lock sleeve
With the puncture blind hole of measuring chamber；When swivel head coordinates with lock sleeve, swivel head lower face is contacted with the second clamping sleeve, can be second
Clamping sleeve provides pressing force.
The seal form of piercing mechanism and measuring chamber described further be CF flange sealing structures, the shank of swivel head lower end
Coordinated by the upper end cover of bearing and CF flanges, shank hypomere processes anti-screw thread, the bottom end cover connection bellows of CF flanges, ripple
Pipe lower end sets syringe needle, and syringe needle epimere processes anti-screw thread, and processing anti-screw thread with shank hypomere coordinates；The upper end cover of CF flanges is under
Copper washer sealing structure between end cap is set, copper washer sealing structure, CF methods are set between the bottom end cover and measuring chamber of CF flanges
Orchid is bolted mode and is connect with measuring chamber.
It is processed into diamond structure in syringe needle section described further.
Sealing structure between sealing pressure head and measuring chamber described further is CF flange sealing structures, and CF flanges are with measuring
Copper washer sealing structure is set between room, and CF flanges are bolted mode and are connect with measuring chamber.
Further the device further includes fuel rod sealing structure；Fuel rod sealing structure is bite type hard sealing structure.
Air source distributor described further is connect with measuring chamber by welding manner.
Helium volumetric ratio measuring device in a kind of fuel rod, the fuel rod sting device of the device include sealing pressure head, puncture
Mechanism, measuring chamber, air source distributor and valve；Measuring chamber right end processing blind hole, sealing pressure head centre processing through-hole, seals pressure head
It is arranged at the blind hole of measuring chamber right end, fuel rod passes through the through-hole of sealing pressure head to be passed through in measuring chamber；Measuring chamber left end is processed
Venthole, the blind hole of venthole connection measuring chamber right end processing, air source distributor are arranged at measuring chamber left end venthole, air source
Distributor left end sets valve, and valve connect with gas chromatograph, gas componant is detected；The processing of measuring chamber top punctures
Blind hole punctures blind hole and is connected with the blind hole that measuring chamber right end is processed, and piercing mechanism includes handle, swivel head, shank and syringe needle, rotation
Rotary head is arranged at the puncture blind hole on measuring chamber top, the trepanning of swivel head or so end face, is coordinated with handle, the connection of swivel head lower end
Shank, shank lower end setting syringe needle, shank can move up and down along the puncture blind hole of measuring chamber；
The device further includes the first clamping sleeve and the first sealing ring；The blind hole of the measuring chamber right end processing is three-level ladder
Blind hole, stepped hole and the fuel rod of internal diameter minimum assemble, and the stepped hole of internal diameter maximum is in measuring chamber right end, the rank of internal diameter maximum
Machining internal thread in terraced hole is sealed in being processed in left section of outer wall threading of pressure head, with measuring chamber internal diameter maximum stepped hole
Thread fitting, the first clamping sleeve of setting in the stepped hole among measuring chamber, fuel rod pass through the through-hole and the first pressure of sealing pressure head
It is fixed to be passed through in measuring chamber, the first sealing ring is equipped at the stepped hole cooperation among the first clamping sleeve and measuring chamber, seals pressure head
When coordinating with measuring chamber, left side is contacted with the first clamping sleeve, can provide pressing force for the first clamping sleeve；
The device further includes the 4th sealing ring and screw；The air source distributor is arranged at measuring chamber left end venthole,
4th sealing ring is set between air source distributor and measuring chamber, and air source distributor is arranged on measuring chamber left end, air source by screw
Distributor left end sets valve, and valve connect with gas chromatograph, gas componant is detected；Air source distributor left end is also set
Multiple valves are put, connect pressure gauge, vacuum pump and vacuum measurement equipment respectively；
The piercing mechanism further includes the second sealing ring, the second clamping sleeve, lock sleeve and third sealing ring；Measuring chamber upper end
Puncture blind hole position be provided with bulge loop, bulge loop outer wall threading, processing two level stepped hole inside lock sleeve, two-stage ladder
Hole all machining internal threads, the internal thread and the external screw thread of measuring chamber bulge loop outer wall processing of lock sleeve hypomere stepped hole coordinate, locking
It covers and third sealing ring is set at the internal thread of hypomere stepped hole and the external screw thread cooperation of measuring chamber bulge loop outer wall processing, in lock sleeve
Second clamping sleeve is set, and the second clamping sleeve is with setting the second sealing ring at measuring chamber bulge loop cooperation；The trepanning of swivel head or so end face,
Coordinate with handle, swivel head lower face processing blind hole, setting shank in blind hole, shank lower end setting syringe needle, outside swivel head hypomere
Wall threading, with lock sleeve epimere stepped hole epimere screw-internal thread fit, shank passes through the stepped hole and measuring chamber of lock sleeve
Puncture blind hole；When swivel head coordinates with lock sleeve, swivel head lower face is contacted with the second clamping sleeve, can be that the second clamping sleeve carries
For pressing force.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：
Helium volumetric ratio measuring device sealing effect is good in a kind of fuel rod sting device of the present invention and fuel rod, improves dress
Vacuum degree is put, improves the accuracy of testing result.
The piercing mechanism coupling part of helium volumetric ratio measuring device in a kind of fuel rod sting device of the present invention and fuel rod
Using CF flange seals in bellows, needle portion is pushed to advance using rotatable handle is punctured, so as to fulfill to fuel rod
Puncture, release helium in stick, secondary sealing structure does not need to, using sealing silicone grease and oil sealing, to cause device internal cavity
Pollution, and CF flange seals effect is good, improves device vacuum degree, improves the accuracy of testing result.
1) vacuum degree is better than 100Pa in device cavity, and slip should be better than 10Pa/90s；
2) during pipeline sample introduction control under test gas sample introduction flow in the range of (30~60) mL/min, pressure (0.08~
1.0) in the range of MPa；Under test gas sample size is (0.5~1.5) ml during sampler sample introduction.
3) using seven kinds of impurity O in fuel rod during pipeline direct injected2、N2、Ne、H2、CH4、CO、CO2Measurement result is opposite
Standard deviation is better than 5%；Using seven kinds of impurity O in fuel rod during syringe sampling2、N2、Ne、H2、CH4、CO、CO2Measurement result
Relative standard deviation is better than 15%.
Description of the drawings
Fig. 1 is helium volumetric ratio measuring device schematic diagram in a kind of fuel rod of the prior art；
Fig. 2 is a kind of one schematic diagram of fuel rod sting device of the present invention；
Fig. 3 is a kind of two schematic diagram of fuel rod sting device of the present invention；
Fig. 4 is a kind of fuel rod sting device rotating head structure schematic diagram of the present invention；
Fig. 5 is a kind of fuel rod sting device piercing needle structure diagram of the present invention；
Fig. 6 is a kind of fuel rod sting device piercing needle structural section sectional view of the present invention；
Fig. 7 is a kind of one schematic diagram of fuel rod sting device fuel rod sealing structure of the present invention；
A kind of two schematic diagram of fuel rod sting device fuel rod sealing structure of Fig. 8 present invention；
In figure：2- handles, 3- sealing pressure heads, 4- clamping sleeves, the first sealing rings of 5-, the second sealing rings of 6-, 7- clamping sleeves, 8-
Lock sleeve, 9- shanks, 10- swivel heads, 11- third sealing shrouds, 12- measuring chambers, the 4th sealing rings of 13-, 14- air source distributors,
15- screws, 16- valves, 17 injection ports, 18- pedestals, 19- syringe needles, 20- bellowss, 21- fuel rod sealing structures.
Specific embodiment
It elaborates with reference to the accompanying drawings and detailed description to the present invention.
As shown in figure 3, a kind of fuel rod sting device of the present invention includes handle 2, pressure head 3 is sealed, the first clamping sleeve 4, the
One sealing ring 5, the second sealing ring 6, the second clamping sleeve 7, lock sleeve 8, shank 9, swivel head 10, third sealing shroud 11, measuring chamber
12, the 4th sealing ring 13, air source distributor 14, screw 15, valve 16 and syringe needle 19；12 right end of measuring chamber processing three-level ladder is blind
The stepped hole of hole, wherein internal diameter minimum is assembled with fuel rod, and the stepped hole of internal diameter maximum is in 12 right end of measuring chamber, stepped hole
Machining internal thread seals the internal thread processed in 3 left sections of outer wall threadings of pressure head, with 12 internal diameter maximum stepped hole of measuring chamber
Coordinate, the first clamping sleeve 4 of setting in the stepped hole among measuring chamber 12,3 centre processing through-hole of sealing pressure head, fuel rod passes through close
The through-hole and the first clamping sleeve 4 for sealing pressure head 3 are passed through in measuring chamber 12, and the first clamping sleeve 4 is matched with the stepped hole among measuring chamber 12
The first sealing ring 5 is equipped at conjunction, when sealing pressure head 3 and measuring chamber 12 coordinate, during preload, left side is contacted with the first clamping sleeve 4,
Can be that the first clamping sleeve 4 provides pressing force；
12 left end of measuring chamber processes venthole, the three-level ladder blind hole of venthole connection measuring chamber 12 right end processing, air source
Distributor 14 is arranged at 12 left end venthole of measuring chamber, and the 4th sealing ring is set between air source distributor 14 and measuring chamber 12
13, air source distributor 14 is arranged on 12 left end of measuring chamber, 14 left end of air source distributor setting valve 16, valve 16 by screw 15
It is connect with gas chromatograph, gas componant is detected；14 left end of air source distributor also sets up multiple valves, respectively connection pressure
Power table, vacuum pump and vacuum measurement equipment etc.；It measures after puncturing gas pressure in device, vacuumized or for device for detecting
Vacuum degree of device etc.；
The processing of 12 top of measuring chamber punctures blind hole, punctures the interior of the three-level ladder blind hole that blind hole and 12 right end of measuring chamber are processed
The stepped hole connection of diameter minimum, the puncture blind hole position of 12 upper end of measuring chamber are provided with bulge loop, bulge loop outer wall threading, lock
Fixed 8 inside processing two level stepped hole, two-stage stepped hole all machining internal threads, the internal thread of 8 hypomere stepped hole of lock sleeve and survey
The external screw thread cooperation of 12 bulge loop outer wall of room processing is measured, internal thread and the 12 bulge loop outer wall of measuring chamber of 8 hypomere stepped hole of lock sleeve add
Third sealing shroud 11 at the external screw thread cooperation of work is set, second clamping sleeve 7, the second clamping sleeve 7 and measuring chamber are set in lock sleeve 8
Second sealing ring 6 is set at 12 bulge loop cooperations；10 or so end face trepanning of swivel head, coordinates with handle 2, and 10 lower face of swivel head adds
Work blind hole, the interior setting shank 9 of blind hole, 9 lower end of shank setting syringe needle 19,10 hypomere outer wall threading of swivel head, with locking
8 epimere stepped hole epimere screw-internal thread fits are covered, shank 9 can be to pass through the stepped hole of lock sleeve 8 and the puncture blind hole of measuring chamber 12；
When swivel head 10 and lock sleeve 8 coordinate, during preload, 8 lower face of swivel head is contacted with the second clamping sleeve 7, can be the second clamping sleeve 7
Pressing force is provided.
During sting device of the present invention normal work, drill bit 9 is playbacked first, pressure head 3 is then sealed and unscrews or from measuring chamber
It is disassembled on 12, fuel rod to be measured passes through the through-hole of sealing pressure head 3, is passed through measuring chamber 12, sealing pressure head 3 is tightened again, external
Vacuum pump vacuumizes measuring chamber 12 by air source distributor 14, when vacuum measuring apparatus detects that measuring chamber 12 meets inspection
After vacuum level requirements needed for survey, by rotating handle 2, promotion shank 9 moves downward, and the syringe needle 19 of shank 9 punctures fuel rod,
Helium in fuel rod enters measuring chamber 12, and helium is entered by air source distributor 14 in Outside Vapor chromatograph, to helium into
Divide and be detected.
As shown in figure 3, in order to reach better seal effect, sealing pressure head 3, drill bit 9 and air source distributor 14 are with measuring
Other types sealing structure also can be used in the sealing structure of room 12.
As shown in Figure 4 and Figure 5, the seal form of piercing mechanism and measuring chamber 12 is CF flange sealing structures, swivel head 10
The shank 9 of lower end is coordinated by the upper end cover of bearing and CF flanges, and 9 hypomere of shank processes anti-screw thread, and the bottom end cover of CF flanges connects
Bellows 20,20 lower end of bellows setting syringe needle 19 are connect, 19 epimere of syringe needle processes anti-screw thread, anti-screw thread is processed with 9 hypomere of shank
Cooperation；Copper washer is set to seal sealing structure, the bottom end cover and measuring chamber of CF flanges between the upper end cover and bottom end cover of CF flanges
Copper washer sealing structure is set between 12, and CF flanges are bolted mode and are connect with measuring chamber 12；CF flange sealing structures
Good airproof performance, it is easy to operate, and the shortcomings that deflate without rubber, improve device overall vacuum degree and vacuumize efficiency, also, CF
Flange sealing structure is not needed to using sealing silicone grease and oil sealing, will not be to bringing secondary pollution in measuring chamber.
As shown in fig. 6, diamond structure is processed into 19 section of syringe needle, it is easier to pierce through fuel rod.
As shown in Figure 7 and Figure 8, it is CF flange sealing structures to seal the sealing structure between pressure head 3 and measuring chamber 12, CF methods
Copper washer sealing structure is set between blue and measuring chamber 12, and CF flanges are bolted mode and are connect with measuring chamber 12；Fuel
Stick sealing structure 21 is bite type hard sealing structure, using polytetrafluoro material seal washer, reduces the deflation of sealing material；Combustion
Charge bar sealing structure 21 can according to the fuel rod specification of different size, select fuel rod sealing structure one (shown in Fig. 7) or
Fuel rod sealing structure two (shown in Fig. 8)；This sealing means improve the sealing performance of sting device, have expanded sting device
Adaptability, the detection of different size fuel rod can be met.
In addition, in order to further improve the leakproofness of air source distributor 14 and measuring chamber 12, air source distributor 14 is with measuring
Room 12 is connected by welding manner.
Claims (10)
1. a kind of fuel rod sting device, which is characterized in that the device includes sealing pressure head, piercing mechanism, measuring chamber, air source point
Orchestration and valve；Measuring chamber right end processing blind hole, sealing pressure head centre processing through-hole, sealing pressure head are arranged on measuring chamber right end
At blind hole, fuel rod passes through the through-hole of sealing pressure head to be passed through in measuring chamber；Measuring chamber left end processes venthole, and venthole connection is surveyed
The blind hole of room right end processing is measured, air source distributor is arranged at measuring chamber left end venthole, air source distributor left end setting valve,
Valve is connect with gas chromatograph, and gas componant is detected；The processing of measuring chamber top punctures blind hole, punctures blind hole with measuring
The blind hole connection of room right end processing, piercing mechanism include handle, swivel head, shank and syringe needle, and swivel head is arranged on measuring chamber
At the puncture blind hole in portion, the trepanning of swivel head or so end face coordinates with handle, swivel head lower end connection shank, the setting of shank lower end
Syringe needle, shank can move up and down along the puncture blind hole of measuring chamber.
2. a kind of fuel rod sting device according to claim 1, which is characterized in that the device further includes the first clamping sleeve
With the first sealing ring；The blind hole of measuring chamber right end processing is three-level ladder blind hole, the stepped hole and fuel rod of internal diameter minimum
Assembling, the stepped hole of the internal diameter maximum machining internal thread in measuring chamber right end, the stepped hole of internal diameter maximum, left section of pressure head of sealing
The screw-internal thread fit processed in outer wall threading, with measuring chamber internal diameter maximum stepped hole, in the stepped hole among measuring chamber
First clamping sleeve is set, fuel rod passes through the through-hole of sealing pressure head and the first clamping sleeve to be passed through in measuring chamber, the first clamping sleeve with
The first sealing ring is equipped at stepped hole cooperation among measuring chamber, when sealing pressure head coordinates with measuring chamber, left side and the first pressure
Fixed contact can provide pressing force for the first clamping sleeve.
3. a kind of fuel rod sting device according to claim 1, which is characterized in that the device further includes the 4th sealing ring
And screw；The air source distributor is arranged at measuring chamber left end venthole, and the 4th is set between air source distributor and measuring chamber
Sealing ring, air source distributor are arranged on measuring chamber left end, air source distributor left end setting valve, valve and gas phase color by screw
Spectrometer connects, and gas componant is detected；Air source distributor left end also sets up multiple valves, connects pressure gauge, vacuum respectively
Pump and vacuum measurement equipment.
4. a kind of fuel rod sting device according to claim 1, which is characterized in that the piercing mechanism further includes second
Sealing ring, the second clamping sleeve, lock sleeve and third sealing ring；The puncture blind hole position of measuring chamber upper end is provided with bulge loop, bulge loop
Outer wall threading, lock sleeve inside processing two level stepped hole, two-stage stepped hole all machining internal threads, lock sleeve hypomere ladder
The internal thread in hole and the external screw thread of measuring chamber bulge loop outer wall processing coordinate, and the internal thread and measuring chamber of lock sleeve hypomere stepped hole are convex
Third sealing ring at the external screw thread cooperation of ring outer wall processing is set, the second clamping sleeve is set in lock sleeve, and the second clamping sleeve is with surveying
It measures and the second sealing ring is set at the bulge loop cooperation of room；The trepanning of swivel head or so end face coordinates with handle, and the processing of swivel head lower face is blind
Hole, the interior setting shank of blind hole, shank lower end setting syringe needle, swivel head hypomere outer wall threading, with lock sleeve epimere ladder
Hole epimere screw-internal thread fit, shank pass through the stepped hole of lock sleeve and the puncture blind hole of measuring chamber；Swivel head coordinates with lock sleeve
When, swivel head lower face is contacted with the second clamping sleeve, can provide pressing force for the second clamping sleeve.
5. a kind of fuel rod sting device according to claim 1, which is characterized in that the piercing mechanism and measuring chamber
Seal form is CF flange sealing structures, and the shank of swivel head lower end is coordinated by the upper end cover of bearing and CF flanges, under shank
The anti-screw threads of Duan Jiagong, the bottom end cover connection bellows of CF flanges, bellows lower end setting syringe needle, syringe needle epimere process anti-screw thread,
Anti- screw thread is processed with shank hypomere to coordinate；Copper washer sealing structure, CF flanges are set between the upper end cover and bottom end cover of CF flanges
Bottom end cover and measuring chamber between copper washer sealing structure is set, CF flanges are bolted mode and are connect with measuring chamber.
6. a kind of fuel rod sting device according to claim 1 or 5, which is characterized in that be processed into the syringe needle section
Diamond structure.
7. a kind of fuel rod sting device according to claim 1, which is characterized in that sealing pressure head and the measuring chamber it
Between sealing structure for CF flange sealing structures, copper washer sealing structure is set between CF flanges and measuring chamber, and CF flanges pass through
Bolt connecting mode is connect with measuring chamber.
8. a kind of fuel rod sting device according to claim 7, which is characterized in that the device further includes fuel rod sealing
Structure；Fuel rod sealing structure is bite type hard sealing structure.
9. a kind of fuel rod sting device according to claim 1, which is characterized in that the air source distributor and measuring chamber
It is connected by welding manner.
10. helium volumetric ratio measuring device in a kind of fuel rod, which is characterized in that the fuel rod sting device of the device includes sealing
Pressure head, piercing mechanism, measuring chamber, air source distributor and valve；Measuring chamber right end processing blind hole, the centre processing of sealing pressure head are logical
Hole, sealing pressure head are arranged at the blind hole of measuring chamber right end, and fuel rod passes through the through-hole of sealing pressure head to be passed through in measuring chamber；It measures
Room left end processing venthole, the blind hole of venthole connection measuring chamber right end processing, air source distributor are arranged on measuring chamber left end and lead to
At stomata, air source distributor left end setting valve, valve connect with gas chromatograph, gas componant is detected；Measuring chamber
Top processing puncture blind hole, puncture blind hole connected with the blind hole that measuring chamber right end is processed, piercing mechanism including handle, swivel head,
Shank and syringe needle, swivel head are arranged at the puncture blind hole on measuring chamber top, the trepanning of swivel head or so end face, are coordinated with handle,
Swivel head lower end connects shank, shank lower end setting syringe needle, and shank can move up and down along the puncture blind hole of measuring chamber；
The device further includes the first clamping sleeve and the first sealing ring；The blind hole of the measuring chamber right end processing is blind for three-level ladder
Hole, stepped hole and the fuel rod of internal diameter minimum assemble, and the stepped hole of internal diameter maximum is in measuring chamber right end, the ladder of internal diameter maximum
Machining internal thread in hole seals the interior spiral shell processed in left section of outer wall threading of pressure head, with measuring chamber internal diameter maximum stepped hole
Line coordinates, and the first clamping sleeve of setting in the stepped hole among measuring chamber, fuel rod passes through the through-hole of sealing pressure head and first to compress
Set be passed through in measuring chamber, at the stepped hole cooperation among the first clamping sleeve and measuring chamber be equipped with the first sealing ring, seal pressure head and
When measuring chamber coordinates, left side is contacted with the first clamping sleeve, can provide pressing force for the first clamping sleeve；
The device further includes the 4th sealing ring and screw；The air source distributor is arranged at measuring chamber left end venthole, air source
4th sealing ring is set between distributor and measuring chamber, and air source distributor is arranged on measuring chamber left end, air source distribution by screw
Device left end sets valve, and valve connect with gas chromatograph, gas componant is detected；Air source distributor left end also sets up more
A valve connects pressure gauge, vacuum pump and vacuum measurement equipment respectively；
The piercing mechanism further includes the second sealing ring, the second clamping sleeve, lock sleeve and third sealing ring；It wears measuring chamber upper end
Thorn blind hole position is provided with bulge loop, and bulge loop outer wall threading, lock sleeve inside processing two level stepped hole, two-stage stepped hole is all
Machining internal thread, the internal thread and the external screw thread of measuring chamber bulge loop outer wall processing of lock sleeve hypomere stepped hole coordinate, under lock sleeve
Third sealing ring is set at the internal thread of section stepped hole and the external screw thread cooperation of measuring chamber bulge loop outer wall processing, is set in lock sleeve
Second clamping sleeve, the second clamping sleeve is with setting the second sealing ring at measuring chamber bulge loop cooperation；Swivel head or so end face trepanning, with hand
Handle coordinates, swivel head lower face processing blind hole, setting shank in blind hole, and shank lower end setting syringe needle, swivel head hypomere outer wall adds
Work external screw thread, with lock sleeve epimere stepped hole epimere screw-internal thread fit, shank passes through the stepped hole of lock sleeve and wearing for measuring chamber
Pierce blind hole；When swivel head coordinates with lock sleeve, swivel head lower face is contacted with the second clamping sleeve, can provide pressure for the second clamping sleeve
Clamp force.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511028427.3A CN105651564B (en) | 2015-12-31 | 2015-12-31 | Helium volumetric ratio measuring device in a kind of fuel rod sting device and fuel rod |
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| CN201511028427.3A CN105651564B (en) | 2015-12-31 | 2015-12-31 | Helium volumetric ratio measuring device in a kind of fuel rod sting device and fuel rod |
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| CN105651564B true CN105651564B (en) | 2018-06-26 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201262602Y (en) * | 2008-09-12 | 2009-06-24 | 北京圣涛平试验工程技术研究院有限责任公司 | Apparatus for sampling mass spectrometer gas |
| CN204374062U (en) * | 2015-01-14 | 2015-06-03 | 中国科学院物理研究所 | There is the ultrahigh vacuum Multi-example transfer device of spectral measurement function |
| CN104728537A (en) * | 2015-03-03 | 2015-06-24 | 东莞中子科学中心 | Inflation type corrugated pipe device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5948656A (en) * | 1982-09-13 | 1984-03-19 | Toshiba Corp | Apparatus for analysis of gas in containing vessel of nuclear reactor |
| JP3146035B2 (en) * | 1991-12-04 | 2001-03-12 | 電子科学株式会社 | Infrared introduction structure to vacuum chamber |
-
2015
- 2015-12-31 CN CN201511028427.3A patent/CN105651564B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201262602Y (en) * | 2008-09-12 | 2009-06-24 | 北京圣涛平试验工程技术研究院有限责任公司 | Apparatus for sampling mass spectrometer gas |
| CN204374062U (en) * | 2015-01-14 | 2015-06-03 | 中国科学院物理研究所 | There is the ultrahigh vacuum Multi-example transfer device of spectral measurement function |
| CN104728537A (en) * | 2015-03-03 | 2015-06-24 | 东莞中子科学中心 | Inflation type corrugated pipe device |
Non-Patent Citations (2)
| Title |
|---|
| 快堆燃料棒内氦气容积比的测定;张剑 等;《科技创新导报》;20140321;第11卷(第9期);第195-197页 * |
| 燃料棒内氦容积比的测定;吴顺停 等;《中国核科学技术进展报告——中国核学会2009年学术年会论文集》;20091118;第1卷;第153-162页 * |
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| CN105651564A (en) | 2016-06-08 |
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