CN209056291U - Pressurizer surge line - Google Patents
Pressurizer surge line Download PDFInfo
- Publication number
- CN209056291U CN209056291U CN201821693750.1U CN201821693750U CN209056291U CN 209056291 U CN209056291 U CN 209056291U CN 201821693750 U CN201821693750 U CN 201821693750U CN 209056291 U CN209056291 U CN 209056291U
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- Prior art keywords
- section
- inclination
- straight section
- surge line
- inclination straight
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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
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model provides a kind of Pressurizer surge line, including the first inclination straight section, linkage section, the second inclination straight section, extended segment and the vertical section being sequentially connected；First one end of inclination straight section far from linkage section is for connecting main pipeline, and the one end of vertical section far from extended segment is for connecting voltage-stablizer；Pressurizer surge line helically rises setting to vertical section along the first inclination straight section, and the elevation angles between the first inclination straight section and the second inclination straight section and horizontal plane are different.Compared with the existing technology, the utility model Pressurizer surge line is connect by the first inclination of setting straight section, the second inclination straight section with main pipeline, and thermal stratification can be effectively relieved；Overall structure helically propradation, can be effectively relieved thermal stress when operation；And pipe segment structure is free of inside and outside component, structure is simple, will not influence reactor building structure and integral arrangement, is also convenient for fabricating.
Description
Technical field
The utility model relates to technical field of nuclear power, and more specifically, the utility model relates to a kind of Pressurizer surge lines.
Background technique
In technical field of nuclear power, Pressurizer surge line (abbreviation Surge line piping) is used for voltage-stablizer and Main Coolant pipeline hot arc
Connect, be voltage-stablizer control main system pressure prevailing transmission channel, belong to the important 1 grade of pipeline of nuclear safety of nuclear power station it
One.
Since the coolant temperature in voltage-stablizer is high, density is low, occupies the top of fluctuation tube section；Cooling in main pipeline
Agent temperature is low, and density is high, occupies the lower part of fluctuation tube section, and above-mentioned phenomenon is known as Pressurizer surge line thermally stratified layer in engineering.
Thermal stratification in Surge line piping can cause tube wall temperature to be layered, to make to fluctuate the overall bending thermal stress drawn game of tube section generation
Portion's thermal stress generates unexpected displacement and support loads.This phenomenon is possible to constitute a threat to the integrality of Surge line piping, right
The normal operation of nuclear power plant generates security risk.
Presently relevant nuclear power plant generallys use level of approximation arrangement, and the thermal stratification of the arrangement is tighter
Weight, generating bigger thermal stress to fluctuation tube body and its weld seam influences.
In view of this, it is really necessary to provide a kind of Pressurizer surge line to overcome drawbacks described above.
Utility model content
The purpose of this utility model is that: a kind of Pressurizer surge line is provided, thermal stratification, and structure can be effectively relieved
Simply, it is easily installed and processes.
To achieve the goals above, the utility model provides a kind of Pressurizer surge line, and first including being sequentially connected inclines
Oblique straight section, linkage section, the second inclination straight section, extended segment and vertical section；First inclination one end of straight section far from linkage section
For connecting main pipeline, the one end of the vertical section far from extended segment is for connecting voltage-stablizer；The Pressurizer surge line is along
One inclination straight section helically rises setting to vertical section, the first inclination straight section and described second tilt straight section and horizontal plane it
Between elevation angles it is different.
As a kind of improvement of the utility model Pressurizer surge line, facing upward between the first inclination straight section and horizontal plane
Angle is greater than the elevation angle between the second inclination straight section and horizontal plane.
As a kind of improvement of the utility model Pressurizer surge line, it is described first inclination straight section horizontal by 30 °~
60 ° of elevation angle settings, the second inclination straight section are arranged horizontal by 10 °~25 ° elevations angle, and the extended segment is horizontal by 1 °
~5 ° of elevation angle settings.
As a kind of improvement of the utility model Pressurizer surge line, the first inclination straight section, linkage section, the second inclination
The straight tube that straight section, extended segment and vertical section are all made of identical pipeline section outer diameter is made.
As a kind of improvement of the utility model Pressurizer surge line, the extended segment is by multiple straight pipes and bending section structure
At.
As a kind of improvement of the utility model Pressurizer surge line, the extended segment includes at least first be sequentially connected
Bending section, straight pipe and the second bending section, the one end of first bending section far from straight pipe are connect with the second inclination straight section.
As a kind of improvement of the utility model Pressurizer surge line, the pipeline section outer diameter of the linkage section and the bending section
The bending radius of the identical and described linkage section and the bending section is 2~5 times of pipeline section outer diameter.
As a kind of improvement of the utility model Pressurizer surge line, the bending section further includes the arc of semicircular in shape
Section.
Compared with prior art, the utility model has the beneficial effects that: Pressurizer surge line provided by the utility model,
It is connect by the first inclination of setting straight section, the second inclination straight section with main pipeline, thermal stratification can be effectively relieved；Overall structure is in
Thermal stress when overall operation can be effectively relieved in spiral state；And pipe segment structure is free of inside and outside component, structure letter
It is single, it will not influence reactor building structure and integral arrangement, be also convenient for fabricating.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model Pressurizer surge line and its technology effect is described in detail
Fruit, in which:
Fig. 1 is the structural schematic diagram of the utility model Pressurizer surge line.
Fig. 2 is the structural schematic diagram of the other direction of the utility model Pressurizer surge line.
Specific embodiment
It is clear in order to be more clear the purpose of this utility model, technical solution and advantageous effects, below in conjunction with attached
Figure and specific embodiment, the present invention will be further described in detail.It should be understood that described in this specification
Specific embodiment is not intended to limit the utility model just for the sake of explaining the utility model.
Refering to Figure 1, the utility model provides a kind of Pressurizer surge line 100, first including being sequentially connected inclines
Oblique straight section 10, linkage section 20, second tilt straight section 30, extended segment 40 and vertical section 50.
Specifically, for connecting main pipeline, vertical section 50 is separate to prolong for first one end of inclination straight section 10 far from linkage section 20
One end of section 40 is stretched for connecting voltage-stablizer, to realize the connection of main pipeline and voltage-stablizer.Pressurizer surge line 100 is along first
Inclination straight section 10 helically rises setting to vertical section 50, between the first inclination straight section 10 and the second inclination straight section 30 and horizontal plane
Elevation angles it is different, can be effectively applicable to it is hot under expansion, alleviate whole thermal stress.It should be noted that usual
One inclination straight section 10 and main pipeline junction, vertical section 50 and voltage-stablizer junction are equipped with thermal sleeve structure, to reduce junction
Thermal stress caused by the temperature difference.
Further, first inclination straight section 10 and horizontal plane between the elevation angle be greater than second inclination straight section 30 and horizontal plane it
Between the elevation angle.When hot fluid rotational flow in Pressurizer surge line 100, the first inclination straight section 10 and the second inclination straight section 30
It with biggish angle, is conducive to prevent cold fluid and enters Pressurizer surge line 100, so that it is smaller to be limited in thermal stratification
In the range of, it avoids thermal stratification from impacting extended segment 40, guarantees the peace of Pressurizer surge line 100 in use
Full property and service life.In present embodiment, the first inclination straight section 10 is arranged horizontal by 30 °~60 ° elevations angle, the second inclination
Straight section 30 is arranged horizontal by 10 °~25 ° elevations angle, and extended segment 40 is arranged horizontal by 1 °~5 ° elevations angle.
Shown in referring to Figure 2 together, extended segment 40 is made of multiple straight pipes 41 and bending section 42, can be according to practical workshop
It is adaptively adjusted between arrangement.In present embodiment, extended segment 40 include at least be sequentially connected the first bending section 421,
Straight pipe 41 and the second bending section 422 do not influence the flowing of fluid to guarantee that 40 structure of extended segment is smooth.Specifically, first is curved
The one end of tune 421 far from straight pipe 41 is connect with the second inclination straight section 30.
In present embodiment, the first inclination straight section 10, linkage section 20, second tilt straight section 30, extended segment 40 and vertical section
50 straight tubes for being all made of identical pipeline section outer diameter are made, manufacture easy to process.Specifically, outside the pipeline section of linkage section 20 and bending section 42
Diameter is identical and the bending radius of linkage section 20 and bending section 42 is 2~5 times of pipeline section outer diameter.
Preferably, bending section 42 further includes the segmental arc 423 of semicircular in shape, is subtracted in the case where guaranteeing spiral trend
Small length of pipe section, while arrangement space shared by bending part is smaller, convenient for assembly arrangement.
Compared with the existing technology, Pressurizer surge line 100 provided by the utility model passes through setting the first inclination straight section
10, the second inclination straight section 30 is connect with main pipeline, and thermal stratification can be effectively relieved；Overall structure helically propradation, can
Thermal stress when overall operation is effectively relieved；And pipe segment structure is free of inside and outside component, structure is simple, will not influence reaction
Heap mill construction and integral arrangement are also convenient for fabricating.
The utility model is not only in the description and the implementation described, therefore for the personnel of familiar field
For other advantage and modification is easily implemented, therefore without departing substantially from universal defined by claim and equivalency range
Spirit and scope in the case where, the utility model is not limited to specific details, representative equipment and shown here as with retouch
The diagram example stated.
Claims (8)
1. a kind of Pressurizer surge line, it is characterised in that: including the first inclination straight section, the linkage section, the second inclination being sequentially connected
Straight section, extended segment and vertical section；The one end of the first inclination straight section far from linkage section is described vertical for connecting main pipeline
The one end of section far from extended segment is for connecting voltage-stablizer；The Pressurizer surge line along first inclination straight section to vertical section helically
Rise setting, the elevation angles between the first inclination straight section and the second inclination straight section and horizontal plane are different.
2. Pressurizer surge line according to claim 1, it is characterised in that: between the first inclination straight section and horizontal plane
The elevation angle be greater than second inclination straight section and horizontal plane between the elevation angle.
3. Pressurizer surge line according to claim 2, it is characterised in that: it is described first inclination straight section horizontal by
30 °~60 ° elevation angle settings, the second inclination straight section are arranged horizontal by 10 °~25 ° elevations angle, the extended segment and level
Face is in 1 °~5 ° elevation angle settings.
4. Pressurizer surge line according to claim 1, it is characterised in that: the first inclination straight section, linkage section, second
The straight tube that inclination straight section, extended segment and vertical section are all made of identical pipeline section outer diameter is made.
5. Pressurizer surge line according to claim 1, it is characterised in that: the extended segment is by multiple straight pipes and bending
Section is constituted.
6. Pressurizer surge line according to claim 5, it is characterised in that: the extended segment includes at least and is sequentially connected
First bending section, straight pipe and the second bending section, the one end of first bending section far from straight pipe connect with the second inclination straight section
It connects.
7. Pressurizer surge line according to claim 6, it is characterised in that: the pipeline section of the linkage section and the bending section
Outer diameter is identical and the bending radius of the linkage section and the bending section is 2~5 times of pipeline section outer diameter.
8. Pressurizer surge line according to claim 5, it is characterised in that: the bending section further includes the arc of semicircular in shape
Shape section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821693750.1U CN209056291U (en) | 2018-10-18 | 2018-10-18 | Pressurizer surge line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821693750.1U CN209056291U (en) | 2018-10-18 | 2018-10-18 | Pressurizer surge line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209056291U true CN209056291U (en) | 2019-07-02 |
Family
ID=67050840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821693750.1U Active CN209056291U (en) | 2018-10-18 | 2018-10-18 | Pressurizer surge line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209056291U (en) |
-
2018
- 2018-10-18 CN CN201821693750.1U patent/CN209056291U/en active Active
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