CN206619397U - Suppress the new structure of sloshing phenomenon in voltage-stablizer - Google Patents
Suppress the new structure of sloshing phenomenon in voltage-stablizer Download PDFInfo
- Publication number
- CN206619397U CN206619397U CN201621294317.1U CN201621294317U CN206619397U CN 206619397 U CN206619397 U CN 206619397U CN 201621294317 U CN201621294317 U CN 201621294317U CN 206619397 U CN206619397 U CN 206619397U
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- Prior art keywords
- spacer
- voltage
- stablizer
- under
- sloshing phenomenon
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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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- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The utility model discloses a kind of new structure for suppressing sloshing phenomenon in voltage-stablizer, including the spacer and under spacer inside voltage-stablizer, spacer is in the tubular structure extended along the short transverse of voltage-stablizer with spacer, voltage-stablizer bottom is fixed in the lower end of under spacer, spacer is fixed on above under spacer and spacer is connected with spacer, the radial dimension of spacer is more than the radial dimension of under spacer, and the upper end of spacer is opening-like.Voltage-stablizer inner space is separated into inside and outside two parts by upper and lower separator, so as to reduce space blade diameter length ratio, makes the more difficult generation of sloshing phenomenon；Rate of flow of fluid is diametrically limited simultaneously, chamber wall is protected；Meanwhile, it is capable to ensure that voltage-stablizer bottom-heated rod will not be exposed；Furthermore it is ensured that in voltage-stablizer level measuring precision.It can be seen that, this new structure is conducive to improving npp safety, reliability and economy.
Description
Technical field
The utility model is related to nuclear power plant's main cooling system technical field, more particularly to a kind of voltage-stablizer internal structure.
Background technology
Voltage-stablizer is used in nuclear reactor primary Ioops, is the important composition device of nuclear power plant's main cooling system, in primary Ioops
When generation accident causes pressure rise or reduction, automatically adjust pressure to primary Ioops, so as to ensure the normal work of primary Ioops
Make.
Environment residing for the nuclear power plant of sea base is harsher with respect to continental rise nuclear power plant, outside in wind, wave and ocean current etc.
Under the influence of condition, carry nuclear power plant maritime floating platform or ship can run-off the straight, the motion such as rise and fall, wave.Now,
Nonlinear sloshing phenomenon occurs in the water surface in nuclear power plant's voltage-stablizer, in this case, the water slug voltage stabilizing in voltage-stablizer
Device chamber wall, different degrees of surge is caused to voltage-stablizer inwall.When surge than it is larger when, sloshing phenomenon is possible to
Directly jeopardize the structural intergrity of voltage-stablizer.Meanwhile, surge can be produced to the level measuring in voltage-stablizer caused by rocking
Raw significantly influence, when occurring sloshing phenomenon in voltage-stablizer, the water level of measurement is higher or lower than actual water level, in this feelings
Under condition, water level control system frequent movement is caused, it could even be possible to causing the false triggering of safety signal.In addition, working as sloshing phenomenon
When comparing violent, it is likely to occur exposed at the top of the heating rod in voltage-stablizer, causes heating rod in time to cool down and burn.Such as
Fruit can not effectively suppress the sloshing phenomenon in voltage-stablizer, and security, reliability and the economy of nuclear power plant will all drop significantly
It is low.
To improve security, reliability and the economy of nuclear power plant, it is necessary to which providing a kind of can suppress sloshing phenomenon
Voltage-stablizer internal structure.
Utility model content
The purpose of this utility model, which is that offer is a kind of, can suppress the voltage-stablizer internal structure of sloshing phenomenon.
To achieve these goals, the utility model provides a kind of new structure for suppressing sloshing phenomenon in voltage-stablizer,
Including the spacer and under spacer inside voltage-stablizer, spacer is in along the height side of voltage-stablizer with spacer
To the tubular structure of extension, voltage-stablizer bottom is fixed in the lower end of under spacer, and spacer is fixed on above under spacer simultaneously
Connected with spacer, the radial dimension of spacer is more than the radial dimension of under spacer, and the upper end of spacer is in opening
Shape.
Compared with prior art, the new structure of sloshing phenomenon has advantages below in the utility model suppression voltage-stablizer：
One, the separator of tubular by the space that cooling water is accommodated in voltage-stablizer divide within separator with outside separator
Two parts.The blade diameter length ratio of known vessel is smaller, liquid therein be just less susceptible to occur sloshing phenomenon, and by spacer, under
The two-part blade diameter length ratio that separator is isolated is both less than original space not being spaced in voltage-stablizer, therefore is sent out in this two parts
The probability at the raw scene of rocking is all lower, and the setting of separator effectively inhibits sloshing phenomenon.
Two, the presence of upper and lower separator limits the Peak Flow Rate that water in container radially flows, even in severe ring
A certain degree of sloshing phenomenon is generated under the conditions of border, in voltage-stablizer, flow velocity radially is restricted, in such case
Under, the impulsive force suffered by chamber wall is hardly damaged the structure of voltage-stablizer also than relatively limited.
Three, the entirety that spacer is constituted with spacer is the upper end small shape in lower end, this overall structure pair greatly
The water of bottom plays a part of " suppressing " in voltage-stablizer, voltage-stablizer bottom is more difficult to sloshing phenomenon occur, it is ensured that even in pole
Hold under harsh conditions, the heating rod positioned at voltage-stablizer bottom prevents heating rod from burning out all without there is exposed situation.
Four, by suppressing sloshing phenomenon, it is ensured that the water level measuring point in voltage-stablizer is unaffected, so as to improve level measuring
Precision.
To sum up, the utility model suppress voltage-stablizer in sloshing phenomenon new structure can improve nuclear power plant security,
Reliability and economy.
It is preferred that the top of spacer is less than the normal work water level in voltage-stablizer.
It is preferred that also including with isolating in the transition separator of hollow structure, the radial dimension of transition separator upper end
The radial dimension of part is identical, and the radial dimension of transition separator lower end is identical with the radial dimension of under spacer, transition separator
Lower end be fixed on the upper end of under spacer, the upper end of transition separator is fixed in the lower end of spacer.
It is preferred that being fixed with some heating rods positioned at bottom in voltage-stablizer, some heating rods are arranged into some circles, under
The top of separator is higher than the top of heating rod, and the radial dimension of spacer is more than the circle that outermost heating rod is surrounded
Circle.
It is preferred that spacer is cylinder-like structure with spacer, the diameter of spacer is more than under spacer
Diameter.
Specifically, spacer is set with spacer with voltage-stablizer in concentric.
It is preferred that the bottom of voltage-stablizer is provided with Surge line piping adapter, under spacer is connected with Surge line piping adapter.
Specifically, under spacer is cylinder-like structure, and the diameter of under spacer is equal to the diameter that Surge line piping is taken over.
Brief description of the drawings
Fig. 1 is provided with the sectional view of the voltage-stablizer of the utility model new structure.
Fig. 2 is the sectional view in voltage-stablizer A directions along along Fig. 1.
Fig. 3 is the sectional view in voltage-stablizer B directions along along Fig. 1.
Fig. 4 is schematic diagram when liquid is rocked in voltage-stablizer.
Embodiment
Description is made to preferred embodiment of the present utility model with reference to the Figure of description provided.
With reference to shown in Fig. 1 to Fig. 3, the utility model provides a kind of new structure for suppressing sloshing phenomenon in voltage-stablizer,
Including the spacer 21 inside voltage-stablizer 1, under spacer 22 and transition separator 23.
Voltage-stablizer 1 includes cylindrical tube 11 and is fixed on the hemispheric upper cover 12 of the upper end of cylinder 11, is fixed on cylinder
The hemispheric low head 13 of the lower end of body 11.Be provided with upper cover 12 connected with the inside of voltage-stablizer 1 safety valve connecting pipe 121,
Spray adapter 122 and a manhole 123 passed in and out for personnel.It is correspondingly arranged on and connects with spray adapter 122 inside upper cover 12
The spray head connect, spray adapter 122 is fetched water from cold leg, by spray head by the relatively low Water spray of temperature to voltage-stablizer 1 it is interior on
The gas space in portion.The centre position of low head 13 sets a Surge line piping adapter 131 connected with the inside of voltage-stablizer 1, voltage-stablizer 1
It is connected by Surge line piping adapter 131 with Surge line piping, Surge line piping is connected with nuclear power plant primary Ioops.
Water level measuring point 112, some pressure-measuring-points on some pressure-measuring-points 111 are provided with the upper end of cylinder 11 and be some
111 with some upper being circumferentially arranged rotating around cylinder 11 of water level measuring point 112, and the circle that wherein pressure-measuring-point 111 is surrounded is located at upper
The top for the circle that water level measuring point 112 is surrounded.The position of upper water level measuring point 112 is far above the normal work water level in voltage-stablizer 1
C, and ensure to rock the position that caused water-level fluctuation does not reach water level measuring point 112 yet under the conditions of extreme external drive
Put.Some temperature points 113 and some lower water level measuring points 114 are provided with the lower end of cylinder 11, if some temperature points 113 with
Dry lower being circumferentially arranged rotating around cylinder 11 of water level measuring point 114, the circle that wherein temperature point 113 is surrounded is located at lower water level measuring point
The top of 114 circles surrounded, the position of lower water level measuring point 114 is as close to the bottom of cylinder 11.In the specific implementation, press
Power measuring point 111, upper water level measuring point 112, temperature point 113, lower water level measuring point 114 are all specifically to be opened in leading on cylinder 11
Hole, its size is relevant with applicable sensor.By differential pressure pickup respectively with upper water level measuring point 112 and lower water level measuring point
114 are connected, and by the pressure difference of the upper water level measuring point 112 of measurement and lower water level measuring point 114, and pressure, water temperature in voltage-stablizer 1, obtain
To the actual water level in voltage-stablizer 1.The quantity of above-mentioned various measuring points in the present embodiment is disclosure satisfy that measurement demand is defined, very
It extremely can only set one.
Some heating rods 14 positioned at bottom are fixed with voltage-stablizer 1, some heating rods 14 are arranged into some circles, specifically
, the quantity of heating rod 14 is 16 in the present embodiment, wherein 8 heating rods 14 are arranged into one around the central axis of voltage-stablizer 1
Individual circle, in addition 8 heating rods 14 be arranged into the bigger circle of another diameter around the central axis of voltage-stablizer 1.
Spacer 21 is in the cylinder extended along the short transverse of voltage-stablizer 1 with spacer 22, spacer 21
Diameter is more than the diameter of under spacer 22, and transition separator 23 is the hollow structure that outline is round platform, and transition separator 23
The diameter of upper end is equal to the diameter of spacer 21, and the diameter of the lower end of transition separator 23 is equal to the diameter of under spacer 22.Under
The lower end of separator 22 is fixed on the middle position of the bottom of voltage-stablizer 1 and connected with Surge line piping adapter 131, transition separator 23
The upper end of under spacer 22 is fixed in lower end, and the upper end of transition separator 23, spacer are fixed in the lower end of spacer 21
21 upper end is opening-like.Spacer 21 is connected by transition separator 23 with spacer 22.
In the voltage regulator 1, spacer 21, under spacer 22 and transition separator 23 are in concentric all with voltage-stablizer 1
Set.Also, the top of under spacer 22 is higher than the top of heating rod 14, the diameter of spacer 21 is more than the heating rod of outer layer
The diameter of 14 circles surrounded.The top of spacer 21 is less than the normal work water level C in voltage-stablizer 1.
Spacer 21, under spacer 22 and transition separator 23 be respectively adopted stainless steel shaping after be welded into one it is whole
Body.The thickness of three separators need to ensure its mechanical strength under the conditions of rocking.
Suppress new structure not the sympathizing with different operating modes of the inside sloshing phenomenon of voltage-stablizer 1 the following is the utility model
Condition：
1) when without external drive condition.
When nuclear power plant is in normal operating condition, the water level in voltage-stablizer 1 maintains normal work water level C, by adding
Water in voltage-stablizer 1 is heated to saturation by hot pin 14, and the top of voltage-stablizer 1 is saturated vapor.Pass through the side of heating rod 14 and spray
Formula maintains primary Ioops pressure in normal operating pressure.Be not in now sloshing phenomenon in voltage-stablizer 1.
Actual water level in voltage-stablizer 1 is obtained by differential pressure pickup, pressure sensor and temperature sensor, according to voltage stabilizing
The pressure of device 1, actual water level are controlled, and maintain primary Ioops pressure and the water level of voltage-stablizer 1 in normal operation range.
2) when nuclear power plant is in the normal operating condition under the conditions of external drive.
Under the conditions of external drive, voltage-stablizer 1 is moved with floating platform or ship, now, in spacer 21
In the presence of under spacer 22, fluctuation by a small margin occurs for the water level in voltage-stablizer 1, as shown in Figure 4.Upper water in voltage-stablizer 1
Position measuring point 112, lower water level measuring point 114 will not be influenceed by the condition of rocking, and nuclear power plant is ensured by monitoring the water level of voltage-stablizer 1
In safe operation state.
3) primary Ioops water filling process.
When needing to carry out water-filling to primary Ioops system, water is entered out of Surge line piping in voltage-stablizer 1, in this process
Water level under spacer 22, spacer 21 is first begin to rise；When water level rises to 21 top of spacer, continue to fill
Water, water flows downwardly into the bottom of voltage-stablizer 1 along spacer 21, until the top that water level is risen to outside spacer 21；Hereafter
Continue water-filling, until water level reaches the water level of needs, stop water-filling.
Compared with prior art, the new structure of sloshing phenomenon has advantages below in the utility model suppression voltage-stablizer 1：
One, the separator of tubular by the space that cooling water is accommodated in voltage-stablizer 1 divide within separator with separator it
Outer two parts.The blade diameter length ratio of known vessel is smaller, and liquid therein is just less susceptible to occur sloshing phenomenon, and by spacer
21st, the two-part blade diameter length ratio that under spacer 22 is isolated is both less than in voltage-stablizer 1 original space not being spaced, thus this two
The probability at the scene of being rocked in part is all lower, and the setting of separator effectively inhibits sloshing phenomenon.
Two, the presence of separator limits the Peak Flow Rate that water in container radially flows, even in rugged environment bar
Under part, a certain degree of sloshing phenomenon is generated in voltage-stablizer 1, flow velocity radially is restricted, in this case, held
Impulsive force suffered by wall is hardly damaged the structure of voltage-stablizer 1 also than relatively limited.
Three, the entirety that spacer 21 is constituted with spacer 22 is the upper end small shape in lower end greatly, and this is integrally tied
Structure plays a part of " suppressing " to the cooling water of bottom in voltage-stablizer 1, the bottom of voltage-stablizer 1 is more difficult to sloshing phenomenon occur, really
Protect in the case of exceedingly odious, the heating rod 14 positioned at the bottom of voltage-stablizer 1 prevents heating all without there is exposed situation
Rod 14 is burnt out.
Four, by suppressing sloshing phenomenon, it is ensured that the water level measuring point in voltage-stablizer 1 is unaffected, so as to improve water level survey
The precision of amount.
Five, the new structure that the utility model suppresses sloshing phenomenon is arranged on the bottom of voltage-stablizer 1, and voltage-stablizer 1 will not be pushed up
The spray system in portion is impacted, and does not also interfere with the heat exchange between shower water and steam.
The maintenance that the utility model suppresses the new structure of sloshing phenomenon in voltage-stablizer is grasped with reference to the maintenance of common voltage-stablizer
Make, also need to detect upper and lower separator in addition, such as the integrality of burn into weld.
Above disclosed is only preferred embodiments of the present utility model, and its effect is to facilitate those skilled in the art
Understand and implement according to this, the interest field of the utility model can not be limited with this certainly, thus it is special according to the present utility model application
The equivalent variations that sharp scope is made, still fall within the scope that the utility model is covered.
Claims (8)
1. a kind of new structure for suppressing sloshing phenomenon in voltage-stablizer, it is characterised in that：Including inside the voltage-stablizer
Spacer and under spacer, the spacer are in the tubular extended along the short transverse of the voltage-stablizer with spacer
The voltage-stablizer bottom is fixed in structure, the lower end of the under spacer, and the spacer is fixed in the under spacer
Under spacer described in Fang Bingyu is connected, and the radial dimension of the spacer is more than the radial dimension of the under spacer, described
The upper end of spacer is opening-like.
2. suppress the new structure of sloshing phenomenon in voltage-stablizer as claimed in claim 1, it is characterised in that：The spacer
Top less than the normal work water level in the voltage-stablizer.
3. suppress the new structure of sloshing phenomenon in voltage-stablizer as claimed in claim 1, it is characterised in that：Also include in hollow
The transition separator of structure, the radial dimension of the transition separator upper end is identical with the radial dimension of the spacer, institute
The radial dimension for stating transition separator lower end is identical with the radial dimension of the under spacer, and the lower end of the transition separator is consolidated
Due to the upper end of the under spacer, the upper end of the transition separator is fixed in the lower end of the spacer.
4. suppress the new structure of sloshing phenomenon in voltage-stablizer as claimed in claim 1, it is characterised in that：In the voltage-stablizer
Some heating rods positioned at bottom are fixed with, some heating rods are arranged into some circles, and the top of the under spacer is high
In the top of the heating rod, the radial dimension of the spacer is more than the circle that the outermost heating rod is surrounded.
5. suppress the new structure of sloshing phenomenon in voltage-stablizer as claimed in claim 1, it is characterised in that：The spacer
It is cylinder-like structure with spacer, the diameter of the spacer is more than the diameter of the under spacer.
6. suppress the new structure of sloshing phenomenon in voltage-stablizer as claimed in claim 5, it is characterised in that：The spacer
Set with spacer with the voltage-stablizer in concentric.
7. suppress the new structure of sloshing phenomenon in voltage-stablizer as claimed in claim 1, it is characterised in that：The voltage-stablizer
Bottom is provided with Surge line piping adapter, and the under spacer is connected with Surge line piping adapter.
8. suppress the new structure of sloshing phenomenon in voltage-stablizer as claimed in claim 7, it is characterised in that：The under spacer
It is equal to the diameter that the Surge line piping is taken over for the diameter of cylinder-like structure, and the under spacer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621294317.1U CN206619397U (en) | 2016-11-29 | 2016-11-29 | Suppress the new structure of sloshing phenomenon in voltage-stablizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621294317.1U CN206619397U (en) | 2016-11-29 | 2016-11-29 | Suppress the new structure of sloshing phenomenon in voltage-stablizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206619397U true CN206619397U (en) | 2017-11-07 |
Family
ID=60229334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621294317.1U Withdrawn - After Issue CN206619397U (en) | 2016-11-29 | 2016-11-29 | Suppress the new structure of sloshing phenomenon in voltage-stablizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206619397U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782680A (en) * | 2016-11-29 | 2017-05-31 | 中广核研究院有限公司 | Suppress the new structure of sloshing phenomenon in voltage-stablizer |
| CN113823424A (en) * | 2021-08-29 | 2021-12-21 | 哈尔滨工程大学 | Device for inhibiting water jump or sloshing phenomenon in built-in voltage stabilizer |
-
2016
- 2016-11-29 CN CN201621294317.1U patent/CN206619397U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782680A (en) * | 2016-11-29 | 2017-05-31 | 中广核研究院有限公司 | Suppress the new structure of sloshing phenomenon in voltage-stablizer |
| CN106782680B (en) * | 2016-11-29 | 2018-10-16 | 中广核研究院有限公司 | Inhibit the new structure of sloshing phenomenon in voltage-stablizer |
| CN113823424A (en) * | 2021-08-29 | 2021-12-21 | 哈尔滨工程大学 | Device for inhibiting water jump or sloshing phenomenon in built-in voltage stabilizer |
| CN113823424B (en) * | 2021-08-29 | 2023-12-19 | 哈尔滨工程大学 | Device for inhibiting water leap or sloshing phenomenon in built-in voltage stabilizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171107 Effective date of abandoning: 20181016 |
|
| AV01 | Patent right actively abandoned |