CN105654994A - Pressure stabilizer of integral reactor - Google Patents
Pressure stabilizer of integral reactor Download PDFInfo
- Publication number
- CN105654994A CN105654994A CN201410719382.3A CN201410719382A CN105654994A CN 105654994 A CN105654994 A CN 105654994A CN 201410719382 A CN201410719382 A CN 201410719382A CN 105654994 A CN105654994 A CN 105654994A
- Authority
- CN
- China
- Prior art keywords
- manostat
- surge line
- line piping
- integral reactor
- reactor according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003381 stabilizer Substances 0.000 title abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000002826 coolant Substances 0.000 claims abstract description 32
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 230000000087 stabilizing effect Effects 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 3
- 238000005192 partition Methods 0.000 abstract 3
- 239000007921 spray Substances 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005574 cross-species transmission Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
The invention relates to a pressure stabilizer of an integral reactor. The pressure stabilizer of an integral reactor includes a container, and also includes a partition board, and the container can form an airtight pressure stable space through the partition board. The upper part of the airtight pressure stable space is a steam chamber, and the part below the steam chamber is a water chamber. A plurality of heating elements run through the side wall of the container. The partition board is provided with a first class surge pipe and a second class surge pipe. The first class surge pipe is communicated with the water chamber and a lower reactor coolant, and the first class surge pipe is provided with a valve body. The second class surge pipe is communicated with the lower reactor coolant and the steam chamber. The pressure stabilizer provided by the invention is suitable for an integral reactor, has a simple structure and complete functions, not only can realize pressure regulation, but also can reduce additional pipeline setting, and satisfies equipment integration, modularization and other requirements.
Description
Technical field
The present invention relates to a kind of nuclear power plant reactor manostat, particularly relate to the manostat of a kind of integral reactor.
Background technology
The manostat of presurized water reactor is mainly used in the pressure of regulation and control reactor coolant loop, keeps coolant pressure fluctuation in running within the scope of regulation. The manostat of conventional pressurized water heap, has longer, an in spiral shape Surge line piping to be connected with coolant loop, carries out pressure adjustment in real time bottom it.
The manostat of conventional pressurized water heap, arranges electrical heating elements in the water chamber of bottom, and when system pressure is on the low side, electric heater starts, and produces steam by heating, and improves system pressure; Arranging injection spray pipe in the vapour chamber at top, injection spray pipe cold with coolant (pipe) section is connected, and when system pressure is higher, makes steam condense by spraying, reduces system pressure.
But for integral reactor, it is directly connected between existing manostat and coolant system, namely eliminates Surge line piping.
In addition, if it is considered that the independence of equipment, the existing injection spray pipe other end connects cold (pipe) section of coolant, and cold fragment position is from manostat farther out, longer injection spray pipe had both been not easy to arrange, is also removed manostat bring extra opening operation when reloading.
Summary of the invention
Present invention aim to address above-mentioned technical problem of the prior art, it is provided that a kind of simple in construction, pressure controlling function can not only be realized and be avoided that the manostat of the integral reactor that additional conduits is set.
The technical scheme is that the manostat of a kind of integral reactor, including a container: also include a demarcation strip, described container forms an airtight voltage stabilizing space by described demarcation strip; The top in described airtight voltage stabilizing space is vapour chamber, is water chamber in the bottom of described vapour chamber; Sidewall at described container runs through many heating element heaters; Described demarcation strip is provided with first kind Surge line piping and Equations of The Second Kind Surge line piping; Described first kind Surge line piping connects described water chamber and bottom reactor coolant, is provided with a valve body on described first kind Surge line piping; Described Equations of The Second Kind Surge line piping connection bottom reactor coolant and vapour chamber.
Preferably, described container is a downward opening steel vessel.
Preferably, described demarcation strip is thermal insulation board.
Preferably, described heating element heater is electrical heating elements.
Preferably, described electrical heating elements is immersed in the water chamber of described container.
Preferably, described valve body is one way stop peturn valve.
Preferably, described container is connected with described bottom reactor coolant by flange or welding.
Preferably, also including a sprinkler, described sprinkler is arranged on the top of described Equations of The Second Kind Surge line piping.
Preferably, described sprinkler is provided with pressure-relief valve.
Preferably, the height of described Equations of The Second Kind Surge line piping is more than the height of described water chamber.
The manostat of the present invention is applicable to integral reactor, and its simple in construction is fully functional, can not only realize pressure controlling, and can reduce additional conduits and arrange, meet the requirements such as equipment integration, modularity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the manostat of integral reactor of the present invention.
Number in the figure is: 1-container; 2-demarcation strip; 3-heating element heater; 4-first kind Surge line piping; 5-one way stop peturn valve; 6-Equations of The Second Kind Surge line piping; 7-sprinkler; 8-vapour chamber; 9-water chamber; 10-bottom reactor coolant
Detailed description of the invention
In order to the technological means making the present invention realize, technical characteristic, goal of the invention and technique effect are easy to understand, below in conjunction with being specifically illustrating, the present invention is expanded on further.
It is illustrated in figure 1 the manostat of a kind of integral reactor of the present invention, including a downward opening steel vessel 1. Container 1 in the present invention is connected with bottom reactor coolant 10 by flange or welding.
Present invention additionally comprises a demarcation strip 2 for being separated with the external world by container 1, be used for forming an airtight voltage stabilizing space; Demarcation strip 2 in the present invention is thermal insulation board, thus form effective entity and heat separation with bottom reactor coolant 10.
Airtight voltage stabilizing space is divided into two parts, and its middle and upper part is vapour chamber 8, is water chamber 9 in the bottom of vapour chamber 8; Sidewall at described container 1 offers multiple installing hole, is used for running through many electrical heating elements 3 of installation; Electrical heating elements 3 is immersed in the water chamber 9 of described container 1.
Demarcation strip 2 is provided with first kind Surge line piping 4 and Equations of The Second Kind Surge line piping 6; Wherein the mouth of pipe of first kind Surge line piping 4 is down, and this first kind Surge line piping 4 connects described water chamber 9 and bottom reactor coolant 10, and is provided with an one way stop peturn valve 5 on first kind Surge line piping 4.
The mouth of pipe of Equations of The Second Kind Surge line piping 6 upward, connects bottom reactor coolant 10 and vapour chamber 8. The height of the Equations of The Second Kind Surge line piping 6 of the present invention is more than the height of described water chamber 9, and is provided with a pressure-relief valve at the top of this Equations of The Second Kind Surge line piping 6, and the unlatching of this pressure-relief valve requires more than the pressure reduction of threshold value, to prevent its startup excessively frequent.
For ease of understanding technical scheme, the following is elaboration the present invention program concrete further. Manostat of the present invention is connected with bottom reactor coolant 10 by flange or welding manner, and the space on demarcation strip 2 is exactly airtight voltage stabilizing space, and the inside is saturated water and steam.
Water temperature in the water temperature at reactor coolant 10 place, general bottom and airtight voltage stabilizing space differs about 40 DEG C, and therefore, the Thermal Synthetic conductance of demarcation strip 2 is little, and thermal stress is also little.
When the pressure of bottom reactor coolant 10 reduces suddenly, start the electrical heating elements 3 being immersed in water chamber 9, by water chamber 9 is heated, make internal boosting.The pressure of manostat passes to bottom reactor coolant 10 by first kind Surge line piping 4 so that it is boosting.
When the pressure of bottom reactor coolant 10 raises suddenly, owing to first kind Surge line piping 4 is provided with one way stop peturn valve 5, therefore the water in bottom reactor coolant 10 up runs only by Equations of The Second Kind Surge line piping 6. If the pressure reduction between bottom reactor coolant 10 and vapour chamber 8 is more than the unlatching threshold value of sprinkler 7, then the water in Equations of The Second Kind Surge line piping 6 then can back down sprinkler 7, sprays to vapour chamber 8. Due to ejection is subcooled water, is not steam, and therefore the pressure of vapour chamber 8 will not be significantly raised, even declines to some extent owing to making the steam in vapour chamber 8 condense. And bottom reactor coolant 10 owing to having overflowed part water to airtight voltage stabilizing space, its pressure can decline, until reaching new balance between itself and airtight voltage stabilizing space pressure.
From the above it can be seen that by arranging the Equations of The Second Kind Surge line piping 6 connecting vapour chamber 8 and bottom reactor coolant 10, the present invention is that bottom reactor coolant 10 provides very big pressure buffer mechanism. The effect of Equations of The Second Kind Surge line piping 6 is similar to the outside injection spray pipe of tradition manostat.
Known from the above, one way stop peturn valve 5 on first kind Surge line piping 4 plays an important role: if being not provided with one way stop peturn valve 5, then when bottom reactor coolant 10 pressure raises suddenly, water is directly entered the water chamber 9 in the present invention by first kind Surge line piping 4, the space of extruding vapour chamber 8, thus pressure moment in airtight voltage stabilizing space rises, until with the pressure balance of bottom reactor coolant 10.
If the air space of manostat is sufficiently large, then in the process, manostat pressure ascensional range can control within scope of design, and in fact some integral reactors are exactly the manostat that have employed large space. And pressure buffer of the present invention mechanism, even if the space of vapour chamber 8 is less, also can be effectively taking place pressure and regulate.
Sprinkler 7 on Equations of The Second Kind Surge line piping 6, carries the function of pressure-relief valve, and it opens the pressure reduction requiring more than threshold value, to prevent its startup excessively frequent.
Equations of The Second Kind Surge line piping 6 is immersed in vapour chamber 8, and its absolute altitude is also an important design parameter. If dried up line is excessively near, then when the water of more bottom reactor coolant 10 is by after upwards Surge line piping 6 enters manostat, upwards Surge line piping 6 top will by water chamber 9 submergence, thus losing pressure buffer ability. If dried up line is too far, then after water level is more and more higher, pressure jump can be produced when close to spill-over, destroy whole system.
The manostat of the present invention is applicable to integral reactor, and its simple in construction is fully functional, can not only realize pressure controlling, and can decrease additional conduits and arrange, meet the requirements such as equipment integration, modularity.
It is only preferred embodiment of the present invention in sum, is not used for limiting the practical range of the present invention. Namely all equivalences made according to the content of the present patent application the scope of the claims change and modify, and all should belong to the technology category of the present invention.
Claims (10)
1. a manostat for integral reactor, including a container, it is characterised in that: also including a demarcation strip, described container forms an airtight voltage stabilizing space by described demarcation strip; The top in described airtight voltage stabilizing space is vapour chamber, is water chamber in the bottom of described vapour chamber; Sidewall at described container runs through many heating element heaters; Described demarcation strip is provided with first kind Surge line piping and Equations of The Second Kind Surge line piping; Described first kind Surge line piping connects described water chamber and bottom reactor coolant, is provided with a valve body on described first kind Surge line piping; Described Equations of The Second Kind Surge line piping connection bottom reactor coolant and vapour chamber.
2. the manostat of integral reactor according to claim 1, it is characterised in that: described container is a downward opening steel vessel.
3. the manostat of integral reactor according to claim 1, it is characterised in that: described demarcation strip is thermal insulation board.
4. the manostat of integral reactor according to claim 1, it is characterised in that: described heating element heater is electrical heating elements.
5. the manostat of integral reactor according to claim 4, it is characterised in that: described electrical heating elements is immersed in the water chamber of described container.
6. the manostat of integral reactor according to claim 1, it is characterised in that: described valve body is one way stop peturn valve.
7. the manostat of integral reactor according to claim 1, it is characterised in that: described container is connected with described bottom reactor coolant by flange or welding.
8. the manostat of integral reactor according to claim 1, it is characterised in that: also including a sprinkler, described sprinkler is arranged on the top of described Equations of The Second Kind Surge line piping.
9. the manostat of integral reactor according to claim 8, it is characterised in that: described sprinkler is provided with pressure-relief valve.
10. the manostat of integral reactor according to claim 8, it is characterised in that: the height of described Equations of The Second Kind Surge line piping is more than the height of described water chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410719382.3A CN105654994A (en) | 2014-12-01 | 2014-12-01 | Pressure stabilizer of integral reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410719382.3A CN105654994A (en) | 2014-12-01 | 2014-12-01 | Pressure stabilizer of integral reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105654994A true CN105654994A (en) | 2016-06-08 |
Family
ID=56480594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410719382.3A Pending CN105654994A (en) | 2014-12-01 | 2014-12-01 | Pressure stabilizer of integral reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105654994A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108028078A (en) * | 2015-07-01 | 2018-05-11 | 原子能技术公司 | The nuclear reactor with heating element being entirely accommodated in monoblock type booster and corresponding application method |
| CN109273104A (en) * | 2018-12-05 | 2019-01-25 | 中广核工程有限公司 | Nuclear power plant voltage stabilizer and its water seal arrangement |
| CN110047600A (en) * | 2018-01-17 | 2019-07-23 | 国核华清（北京）核电技术研发中心有限公司 | Pressurizer system |
| WO2020113483A1 (en) * | 2018-12-05 | 2020-06-11 | 中广核工程有限公司 | Nuclear power station pressurizer and water sealing device thereof |
| CN111508625A (en) * | 2020-04-29 | 2020-08-07 | 中国核动力研究设计院 | Voltage stabilizer structure with system connecting pipe and electric heating element centrally arranged on upper portion and application thereof |
| CN113219817A (en) * | 2021-04-07 | 2021-08-06 | 中国船舶重工集团公司第七一九研究所 | Pressure safety control system and control method for multiple redundancy voting |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101017711A (en) * | 2005-12-29 | 2007-08-15 | 阿海珐核能公司 | Pressuriser for pressured water nuclear power station |
| CN101079333A (en) * | 2006-05-26 | 2007-11-28 | 中国核动力研究设计院 | Nuclear reactor non-energy and multi-function pool voltage-stabling system |
| US20120294410A1 (en) * | 2011-05-16 | 2012-11-22 | Steinmoeller Franz E | Pressurizer baffle plate and pressurized water reactor (pwr) employing same |
| CN103295656A (en) * | 2012-02-29 | 2013-09-11 | 上海核工程研究设计院 | Diversified engineered safety system for nuclear reactor |
-
2014
- 2014-12-01 CN CN201410719382.3A patent/CN105654994A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101017711A (en) * | 2005-12-29 | 2007-08-15 | 阿海珐核能公司 | Pressuriser for pressured water nuclear power station |
| CN101079333A (en) * | 2006-05-26 | 2007-11-28 | 中国核动力研究设计院 | Nuclear reactor non-energy and multi-function pool voltage-stabling system |
| US20120294410A1 (en) * | 2011-05-16 | 2012-11-22 | Steinmoeller Franz E | Pressurizer baffle plate and pressurized water reactor (pwr) employing same |
| CN102915775A (en) * | 2011-05-16 | 2013-02-06 | 巴布科克和威尔科克斯核能股份有限公司 | Pressurizer baffle plate and pressurized water reactor (PWR) employing same |
| CN103295656A (en) * | 2012-02-29 | 2013-09-11 | 上海核工程研究设计院 | Diversified engineered safety system for nuclear reactor |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108028078A (en) * | 2015-07-01 | 2018-05-11 | 原子能技术公司 | The nuclear reactor with heating element being entirely accommodated in monoblock type booster and corresponding application method |
| CN108028078B (en) * | 2015-07-01 | 2020-07-24 | 原子能技术公司 | Nuclear reactor with heating element all housed in an integral pressurizer |
| US10930402B2 (en) | 2015-07-01 | 2021-02-23 | Société Technique Pour L'energie Atomique | Nuclear reactor with heating elements housed in their entirety in an integrated pressurizer |
| CN110047600A (en) * | 2018-01-17 | 2019-07-23 | 国核华清（北京）核电技术研发中心有限公司 | Pressurizer system |
| CN109273104A (en) * | 2018-12-05 | 2019-01-25 | 中广核工程有限公司 | Nuclear power plant voltage stabilizer and its water seal arrangement |
| CN109273104B (en) * | 2018-12-05 | 2020-06-05 | 中广核工程有限公司 | Nuclear power station voltage stabilizer and water seal device thereof |
| WO2020113483A1 (en) * | 2018-12-05 | 2020-06-11 | 中广核工程有限公司 | Nuclear power station pressurizer and water sealing device thereof |
| CN111508625A (en) * | 2020-04-29 | 2020-08-07 | 中国核动力研究设计院 | Voltage stabilizer structure with system connecting pipe and electric heating element centrally arranged on upper portion and application thereof |
| CN113219817A (en) * | 2021-04-07 | 2021-08-06 | 中国船舶重工集团公司第七一九研究所 | Pressure safety control system and control method for multiple redundancy voting |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160608 |