CN209607419U - A kind of pool low temperature heating reactor control rod guide tubes and bundles structure - Google Patents
A kind of pool low temperature heating reactor control rod guide tubes and bundles structure Download PDFInfo
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- CN209607419U CN209607419U CN201920038393.3U CN201920038393U CN209607419U CN 209607419 U CN209607419 U CN 209607419U CN 201920038393 U CN201920038393 U CN 201920038393U CN 209607419 U CN209607419 U CN 209607419U
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- China
- Prior art keywords
- control rod
- bundles
- guide tubes
- rod guide
- low temperature
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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 utility model belongs to control rod guide tubes and bundles technical field, more particularly to a kind of pool low temperature heating reactor control rod guide tubes and bundles structure, up and down motion for the C&P systems for being connected with actuating arm assembly in the heap pond for pool low temperature heating reactor provides positioning and guiding, including being lifted on several control rod guide tubes and bundles (3) in hanging basket (2) by the upper bearing plate (1) at hanging basket (2) upper opening, the top of control rod guide tubes and bundles (3) is the necking guide pipe (6) equipped with flange (8), control rod guide tubes and bundles (3) are lifted below the upper bearing plate (1) at hanging basket (2) upper opening by flange (8), the overall diameter of flange (8) is less than the overall diameter of control rod guide tubes and bundles (3).The utility model can overcome conventional type guide cylinder because the interference of its flange can not install fixed defect, only need to consider precision machined difficulty in structure, and no-welding-seam can save the requirement to precision welding, assemble relatively easy.
Description
Technical field
The utility model belongs to control rod guide tubes and bundles technical field, and in particular to a kind of pool low temperature heating reactor control rod is led
To barrel structure.
Background technique
Control rod guide tubes and bundles equipment is the component part of reactor core internals key, and major function is for neutron-absorbing
The up and down motion of the starframe C&P systems of cluster composition provides reliable positioning and guiding, it is ensured that controls under emergency episode
Cluster can rapidly and accurately be inserted into fuel assembly and realize emergency shut-down, and this requires control rod guide tubes and bundles to fall in control cluster
There is lesser frictional force in stick stroke, while certain runner is set, allow coolant to flow out, can reduce again cold
But impact of the agent transverse flow to control cluster, above-mentioned requirements determine that control rod guide tubes and bundles are very smart in reactor core internals
Close mechanical structured member.
The common control rod guide tubes and bundles structure of presurized water reactor is by top guide assembly, lower part guide assembly, leads at present
It is formed to plate and positioning pin etc., upper and lower part guide cylinder is leaned against together by upper and lower flange, is fixed by screws in together, whole
A guide cylinder lower end is fixed on it accurately on the screen of reactor core by positioning pin, there is accurate machine to add for manufacture, precision welding,
The characteristics of precision assembly and Precision measurement.But for Deep Pool Low Temperature Heating Reactor, used by existing presurized water reactor
Control rod guide tubes and bundles structure can not be simply applied in Deep Pool Low Temperature Heating Reactor, Deep Pool Low Temperature Heating Reactor reaction
Property control controlled using Whole core control rod, no boron water is adjusted, therefore C&P systems are intensive, quantity is more, consecutive fuel component
Inside all contain C&P systems, conventional presurized water reactor control rod guide tubes and bundles because thereon, lower end surface all lean on flange mutually to fix with screen, it is adjacent
The control rod guide tubes and bundles mounting flange interference of position cannot achieve installation, should not use.Therefore it needs according to selected fuel assembly
The difference of type, coolant type, reactive control mode and reactor core display etc., needs special control rod guide tubes and bundles knot
Structure had not only been able to satisfy its functional requirement, but also has been unable to too complex, reduced the requirement to equipment and technology as far as possible
Utility model content
The purpose of the utility model is to provide a kind of control rods suitable for Deep Pool Low Temperature Heating Reactor and fuel assembly
It is oriented to barrel structure, which does not influence the integral installation of Deep Pool Low Temperature Heating Reactor, meets the standard of positioning and guiding yet
True property requirement, structure are relatively simple.
To achieve the above objectives, the technical solution adopted in the utility model is a kind of pool low temperature heating reactor control rod guiding
Barrel structure, the up and down motion for the C&P systems for being connected with actuating arm assembly in the heap pond for pool low temperature heating reactor
There is provided positioning and guiding, wherein including several be lifted in the hanging basket by the upper bearing plate at hanging basket upper opening
Control rod guide tubes and bundles, the top of the control rod guide tubes and bundles are the necking guide pipe equipped with flange, and the control rod guide tubes and bundles are logical
It crosses below the upper bearing plate that the flange is lifted at the hanging basket upper opening, the overall diameter of the flange is less than the control
The largest outer diameter of stick guide cylinder.
Further, the stack shell of the control rod guide tubes and bundles is square tube, and the top of the square tube is arranged in the necking guide pipe
The top of the necking guide pipe is arranged in end, the flange；The necking guide pipe is a reducing pipe, lower end and the side
The flange is arranged in the undergauge nozzle of pipe connection, upper end.
Further, the height of the square tube guarantees to meet the effective travel that the C&P systems are promoted；The necking is led
It can satisfy the linear motion up and down for the actuating arm assembly connecting with the C&P systems to the interior diameter of pipe.
Further, counterbore is equipped on the reactor core pressure plate of the hanging basket bottom, the bottom end of the control rod guide tubes and bundles is fixed
Position is in the counterbore.
Further, axial expansion gap is reserved between the bottom end of the control rod guide tubes and bundles and the counterbore.
Further, after the C&P systems and the actuating arm assembly disengage, whole control rod guide tubes and bundles energy
Enough entirety is proposed from the heap pond.
The utility model has the beneficial effects that:
1. coolant liquid had both been allowed to flow out out of control rod guide tubes and bundles 3, the indoor stream of chamber of control rod guide tubes and bundles 3 can also be reduced
Horizontal impact of the body to C&P systems.
2. necking guide pipe 6 can reduce the diameter in the mounting flange face of the upper end of control rod guide tubes and bundles 3, adjacent control is avoided
The flange 8 of stick guide cylinder 3 interferes the problem of can not installing, and can overcome conventional type guide cylinder that can not pacify because of the interference of its flange
Fixed defect is filled, provides reliable positioning and guiding for the up and down motion of C&P systems.
3. the frictional force of total travel of the C&P systems in control rod guide tubes and bundles 3 is similar to presurized water reactor, volume not will increase
Outer extra unpredictable frictional force.
4. in structure, it is only necessary to consider precision machined difficulty, no-welding-seam can save the requirement to precision welding, assemble phase
To simple.
Detailed description of the invention
Fig. 1 is showing for pool low temperature heating reactor control rod guide tubes and bundles structure described in specific embodiment of the present invention
It is intended to；
Fig. 2 is bowing for pool low temperature heating reactor control rod guide tubes and bundles structure described in specific embodiment of the present invention
View；
Fig. 3 is the schematic diagram of control rod guide tubes and bundles described in specific embodiment of the present invention；
In figure: 1- upper bearing plate, 2- hanging basket, 3- control rod guide tubes and bundles, 4- reactor core pressure plate, 5- square tube, 6- necking guiding
Pipe, 7- screw, 8- flange.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and examples.
As shown in Figure 1 and Figure 2, a kind of pool low temperature heating reactor control rod guide tubes and bundles structure provided by the utility model, is used for
For the C&P systems for being connected with actuating arm assembly in the heap pond of pool low temperature heating reactor up and down motion provide positioning and
Guiding (every set C&P systems contain 24 control rods), is made of square tube 5,6 two components of necking guide pipe equipped with flange 8.
Several control rod guide tubes and bundles 3 are lifted in hanging basket 2 by the upper bearing plate 1 at 2 upper opening of hanging basket, control rod
The top of guide cylinder 3 is the necking guide pipe 6 equipped with flange 8, and control rod guide tubes and bundles 3 are lifted on above hanging basket 2 by flange 8 and are opened
1 lower section of upper bearing plate at mouthful, the overall diameter of flange 8 are less than the largest outer diameter of control rod guide tubes and bundles 3.
As shown in figure 3, the stack shell of control rod guide tubes and bundles 3 is square tube 5, the top of square tube 5, method is arranged in necking guide pipe 6
The top of necking guide pipe 6 is arranged in orchid 8；Necking guide pipe 6 is a reducing pipe, lower end and square tube 5 by being welded to connect, on
Flange 8 is arranged in the undergauge nozzle at end.
Square tube 5 is the general square tube of presurized water reactor, is made of guide cylinder, guide plate, C-shaped pipes and twin-tube etc., the height of square tube 5
Guarantee the effective travel for meeting C&P systems promotion；The interior diameter of necking guide pipe 6 can satisfy to be connect with C&P systems
Actuating arm assembly linear motion up and down.
Counterbore is equipped on the reactor core pressure plate 4 of 2 bottom of hanging basket, the bottom end of control rod guide tubes and bundles 3 is located in counterbore.
Axial expansion gap is reserved between the bottom end and counterbore of control rod guide tubes and bundles 3.
It is according to reactor core fuel assembly box number that all control rod guide tubes and bundles 3 are fixed using screw 7 in actual use
On upper bearing plate 1, then it is integrally placed on the flange face of 2 upper end opening of hanging basket.When reactor reloading pattern, when C&P systems with
After actuating arm assembly disengages, whole control rod guide tubes and bundles 3 can be proposed integrally from heap pond.
Device described in the utility model is not limited to embodiment described in specific embodiment, those skilled in the art
Technical solution according to the present utility model obtains other embodiments, also belongs to the technological innovation scope of the utility model.
Claims (6)
1. a kind of pool low temperature heating reactor control rod guide tubes and bundles structure, for the connection in the heap pond for pool low temperature heating reactor
There is the up and down motion of the C&P systems of actuating arm assembly to provide positioning and guiding, it is characterized in that: including by above hanging basket (2)
The upper bearing plate (1) of opening is lifted on several control rod guide tubes and bundles (3) in the hanging basket (2), the control rod guiding
The top of cylinder (3) is the necking guide pipe (6) equipped with flange (8), and the control rod guide tubes and bundles (3) are hung by the flange (8)
Below upper bearing plate (1) at the hanging basket (2) upper opening, the overall diameter of the flange (8) is less than the control rod
The largest outer diameter of guide cylinder (3).
2. pool low temperature heating reactor control rod guide tubes and bundles structure as described in claim 1, it is characterized in that: the control rod is oriented to
The stack shell of cylinder (3) is square tube (5), and necking guide pipe (6) setting is in the top of the square tube (5), flange (8) setting
On the top of the necking guide pipe (6)；The necking guide pipe (6) is a reducing pipe, and lower end and the square tube (5) are even
It connects, the flange (8) is arranged in the undergauge nozzle of upper end.
3. pool low temperature heating reactor control rod guide tubes and bundles structure as claimed in claim 2, it is characterized in that: the square tube (5)
Height guarantees to meet the effective travel that the C&P systems are promoted；The interior diameter of the necking guide pipe (6) can satisfy with
The linear motion up and down of the actuating arm assembly of the C&P systems connection.
4. pool low temperature heating reactor control rod guide tubes and bundles structure as described in claim 1, it is characterized in that: in the hanging basket (2)
The reactor core pressure plate (4) of bottom is equipped with counterbore, and the bottom end of the control rod guide tubes and bundles (3) is located in the counterbore.
5. pool low temperature heating reactor control rod guide tubes and bundles structure as claimed in claim 4, it is characterized in that: the control rod is oriented to
Axial expansion gap is reserved between the bottom end and the counterbore of cylinder (3).
6. pool low temperature heating reactor control rod guide tubes and bundles structure as claimed in claim 3, it is characterized in that: working as the control rod group
After part and the actuating arm assembly disengage, all the control rod guide tubes and bundles (3) can integrally be proposed from the heap pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920038393.3U CN209607419U (en) | 2019-01-09 | 2019-01-09 | A kind of pool low temperature heating reactor control rod guide tubes and bundles structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920038393.3U CN209607419U (en) | 2019-01-09 | 2019-01-09 | A kind of pool low temperature heating reactor control rod guide tubes and bundles structure |
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| CN209607419U true CN209607419U (en) | 2019-11-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109686461A (en) * | 2019-01-09 | 2019-04-26 | 中国原子能科学研究院 | A kind of pool low temperature heating reactor control rod guide tubes and bundles structure |
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2019
- 2019-01-09 CN CN201920038393.3U patent/CN209607419U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109686461A (en) * | 2019-01-09 | 2019-04-26 | 中国原子能科学研究院 | A kind of pool low temperature heating reactor control rod guide tubes and bundles structure |
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