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1、文 件 種 類(lèi)版本Rev日期Date狀態(tài)Status編寫(xiě)Drafted by校核Checked by審核Reviewed by批準(zhǔn)Approved by修改說(shuō)明Modification-ObservationBCFC升版FANGCHENGGANG NUCLEAR POWER PLANT PHASE I (2×1000MW)文件編碼 DOC. NOBL917TEP002DNFF45GN題目TITLE:System Design Manual-TEP Chapter 2, 3, 4, 5 Function, General Design, Description and Definiti

2、on of Equipment, Operation Parameters工程號(hào) Project NOBL文件類(lèi)型 Document TypeGN子項(xiàng)號(hào) Sub-Item NOTEP設(shè)計(jì)階段 Engineering PhaseS參考文件編碼Reference DocumentPK817TEP002B30245GNRevCDocument CategoryA: IdenticalB: ModifiedC: New工程設(shè)計(jì)甲級(jí)號(hào)：A144008121 工程咨詢(xún)甲級(jí) 工咨甲 22420070005CNPDC中廣核工程設(shè)計(jì)National A grade engineering designing,C

3、ertification NO: A144008121CHINA NUCLEAR POWER DESIGN COMPANY,(SHENZHEN)National A grade engineering consulting,Certification NO: 22420070005內(nèi)部編碼 Internal CodeCP0905-FF-GN-000060This document is the property of CNPDC It must not be used、reproduced、transmitted or disclosed without the prior written p

4、ermission of CNPDC 本文件之產(chǎn)權(quán)屬于中廣核工程設(shè)計(jì) 。未獲本公司 ，任何人不得擅自使用、 、傳遞或泄露該文件。System Design Manual-TEP Chapter 2, 3, 4, 5 Function, General Design, Description and Definition of Equipment, Operation ParametersRev B版本REVISION RECORD版本Rev日期Date狀態(tài)Status編寫(xiě)Drafted by校核Checked by審核Reviewed by批準(zhǔn)Approved by修改說(shuō)明Modificati

5、on-ObservationA2010.01PRE張翼中/蘭立君潘躍龍范子玉張艷娥First IssueSystem Design Manual-TEP Chapter 2, 3, 4, 5 Function, General Design, Description and Definition of Equipment, Operation ParametersRev BFANGCHENGGANG NUCLEAR POWER PLANT PHASE I (2×1000MW)TEP - The Boron Recycle SystemDesign Manual Chapter 2,

6、3, 4, 5Function, General Design, Description and Definition of Equipment, Operation ParametersAPPROVEDBY:REVIEWEDBY:CHECKEDBY:DRAFTEDBY:COUNTERSIGNEDBY:CHINA NUCLEAR POWER DESIGN COMPANY,AUG., 2011(SHENZHEN)System Design Manual-TEP Chapter 2, 3, 4, 5 Function, General Design, Description and Definit

7、ion of Equipment, Operation ParametersRev B文件修改MODIFICATION RECORD版本Rev日期Date章節(jié)ITEM頁(yè)碼PAGE修改范圍及依據(jù)MODIFICATIONAB2010-01-262011-8-51,2,4,13,15,19,20,33,43First IssueTEP006DE was changed from anion bed to mixed bed.The description about TEP006DE was modified.System Design Manual-TEP Chapter 2, 3, 4, 5 F

8、unction, General Design, Description and Definition of Equipment, Operation Parameters1/3Rev BCONTENTS2 FUNCTION12.1 FUNCTION12.1.1 Purification section12.1.2 Water/boric acid separation section12.1.3 Deboration section22.1.4 Decontamination section22.2 SAFETY FUNCTION23 GENERAL DESIGN23.1 DESIGN BA

9、SES AND SAFETY CRITERIA23.2 EQUIPMENT DESIGN63.2.1 Head storage. 63.2.2 Filters73.2.3 Demineralizers73.2.4 Gas stripper83.2.5 Intermediate storage. 103.2.6 Evaporator package103.2.7 Distillate monitoring. 123.2.8 Concentrate monitoring tank123.2.9 Deborating demineralizers123.2.10 RCV decontaminatio

10、n section133.2.11 Pumps133.2.12 Protection of circuits containing boric acid with aum boron concentrationof 7700ppm133.2.13 Differential pressure level measuring on head storageand gas strippingcolumns143.3 CHOICE OF MATERIALS - CONSTRUCTION143.3.1 Choice of materials143.3.2 Construction15System Des

11、ign Manual-TEP Chapter 2, 3, 4, 5 Function, General Design, Description and Definition of Equipment, Operation Parameters2/3Rev B4 DESCRIPTION AND DEFINITION OF EQUIPMENT154.1 DESCRIPTION154.1.1 General description154.1.2 Sampling facilities204.1.3 TEP interfaces with other systems214.2 CHARACTERIST

12、ICS224.2.1 Fluid characteristics224.2.2 Equipment characteristics254.3 LAYOUT315 OPERATING PARAMETERS355.1 NORMAL OPERATION355.1.1 Head storage. 355.1.2 Filters and demineralizers365.1.3 Gas stripper unit (text refers to 9TEP001DZ)365.1.4 Intermediate storage385.1.5 Evaporator package (text refers t

13、o 9TEP001EV)385.1.6 Concentrate and distillate monitoring sections395.2 PARTICULAR STEADY OPERATION395.2.1 Head storage. 395.2.2 Reactor coolant stripping before reactor vessel opening395.2.3 Gas stripper by pass415.2.4 Intermediate storage. 415.2.5 Oxygen stripping using the evaporator package425.2

14、.6 Distillate monitoring. 435.2.7 Concentrate monitoring tank435.2.8 RCV system deboration435.2.9 RCV system decontamination435.3 PARTICULAR TRANSIENT OPERATION435.3.1 Head storage tank435.3.2 Gas stripper unit44System Design Manual-TEP Chapter 2, 3, 4, 5 Function, General Design, Description and De

15、finition of Equipment, Operation Parameters3/3Rev B5.3.3 Evaporator package445.4 STARTUP AND NORMAL SHUTDOWN455.4.1 Normal startup455.4.2 Shutdown of various TEP processing sections525.5 OTHER OPERATIONS555.5.1 Filling of head storage tank with hydrogenated effluent555.5.2 Gas stripper555.5.3 Evapor

16、ator package565.6 CONTROL PRINCIPLES685.6.1 Head storage(9TEP001BA and 9TEP008BA)685.6.2 Gas stripper section685.6.3 Intermediate storage(9TEP002BA, 9TEP003BA, 9TEP004BA)695.6.4 Evaporator section695.6.5 Monitoring. 71System Design Manual-TEP Chapter 2, 3, 4, 5 Function, General Design, Description

17、and Definition of Equipment, Operation ParametersRev B1/712 FUNCTION2.1 FUNCTIONThe Boron Recycle System (TEP) performs the following functions for both reactor units: Collects hydrogenated reactor coolant from the reactor coolant system via the Chemical and Volume Control System (RCV) letdown line,

18、 and from the reactor coolant drain tank in the Nuclear Island Vent and Drain System (RPE), Processes the effluent in order to obtain reactor grade make up water and 4% in weight of boric acid solution for reuse in the reactor coolant system.The TEP can also be used to reduce boric acid concentratio

19、n in the Chemical and Volume Control System (RCV), and to decontaminate primary coolant during refueling or maintenance shutdown.The TEP is divided into three sections:Purification section,Water/boric acid separation section, Deboration section,Decontamination section.B2.1.1 Purification sectionAfte

20、r an initial holdup period during which the effluent is analyzed using the Nuclear Sampling System (REN), it is then processed by demineralization, filtration and gas stripping.This section can also be used to strip the hydrogen and active gases from reactor coolant before removing the reactor vesse

21、l head. The coolant is then returned to the RCV system volume control tank (1/2RCV002BA).2.1.2 Water/boric acid separation sectionAfter a second holdup period, the stripped effluent is processed through the recycle evaporator for separation into boric acid (concentrate) and reactor grade makeup wate

22、r (distillate).After sampling (REN), the distillate is transferred to the reactor makeup water storage of the Reactor Boron and Water Makeup System (REA).The concentrate is analyzed, filtered and its boric acid concentration adjusted if necessaryBprior to transfer to the 4% boric acid storage9REA003

23、BA).of REA system (1/2REA004BA,Under exceptional circumstances this system may also be used to deaerate demineralizedSystem Design Manual-TEP Chapter 2, 3, 4, 5 Function, General Design, Description and Definition of Equipment, Operation ParametersRev B2/71water of the Demineralized Water Distributi

24、on System (SED) for use as makeup to the REA system. It can also be used, if necessary, to purify REA make up water.2.1.3 Deboration sectionThis section receives hydrogenated reactor coolant fluid from the RCV system of each plant unit for deboration in demineralizers and returns it to the system.A

25、demineralizer is provided for each RCV unit.2.1.4 Decontamination sectionA mixed bed demineralizer is used to decontaminate primary coolant for the RCV system during refueling or maintenance shutdown.2.2 SAFETY FUNCTIONThe TEP has no direct safety function; however, as the processed fluids are radio

26、active, the system is designed to prevent leaks into the environment.B3 GENERAL DESIGN3.1 DESIGN BASES AND SAFETY CRITERIA1 SAFETY CRITERIA1.1. Reference station 1.2 PRC criteria1.3 French criteriaLING AO NUCLEAR POWER STATION UNITS 3 & 4SAR section 9.3.4.3RRevision 4 (September 1991)modified 19

27、95subsection 2.3.72 CLASSIFICATIONBLX30000002DOZJ03GN3 ENGINEERING RULES AND STANDARDS Reference to particular engineering rues and standardsRCC-M, TEMA, ASME VIII Div 1, RSEM, CODAP.4 FUNCTIONAL CRITERIA4.1 Rconditions in case of total loss of the system4.2 Active component redundancy4.3 Electrical

28、 Supply Emergency power Supply Electrical redundancyRFS 1.3.a not requiredNoNo NoSystem Design Manual-TEP Chapter 2, 3, 4, 5 Function, General Design, Description and Definition of Equipment, Operation ParametersRev B3/715 ENVIRONMENT AND INSTALLATION5.1 Separation of redundant components Active com

29、ponents Passive componentsNot applicableNot applicable5.2 External attacks against which the system has to be protected LOCA. Steam break Pipe whip Turbine missiles high trajectory. low trajectory Miscellaneous missiles (including load drop from cranes) Airplane crash Safe shutdown earthquake Floods

30、 Drying out Noxious vapours or gases (other than those caused by fire) Liquids (escaping from breaks in the piping) Ionizing radiations Explosions: from in site Particular precautions against fire5.3 Attacks on other systems Pipe whip Missiles Noxious vapours or gases (other than those caused by fir

31、e) Flooding liquids Ionizing radiation Explosion FireNot applicable Not applicable Yes (for )Not necessary Not applicable YesYes Yes, partiallyNoNot applicable Not necessaryNot necessary NoNot applicable RCC-IYes, partially NoYesYes Yes, partiallyYes YesSystem Design Manual-TEP Chapter 2, 3, 4, 5 Fu

32、nction, General Design, Description and Definition of Equipment, Operation ParametersRev B4/71The purification section consists of two identical trains, each comprising a storage tank,demineralizers and gas-stripping equipment. Each train is assigned to one plant unit during normal plant operation.T

33、he water/boric acid separation section (storage, evaporator packages, distillate andconcentrate monitoring equipment) is shared by both plant units.The deboration section consists of two identical demineralizers, which assigned to each plant unit(distillate demineralizer).The decontamination section

34、 consists of a mixed bed demineralizer, which used for RCV system.Two types of load follow were postulated in the design of the TEP system. The first is a slow load follow, type 12-3-6-3 and the second is rapid, type 18-6. Both were based on the following operations, over a period of 24 hours:Slow l

35、oad follow: 12-3-6-3Two variants were analyzed for this case: The first configuration is as follows: 12 hours at 100% full power, a 3-hour gradient to reduce power from 100% to 50% full power, 6 hours at 50% full power, a 3-hour gradient to increase power from 50% to 100% full power.Load following m

36、ust be performed during 80% of the full cycle time; therefore the cycle deviation time between the 2 units shall range from 3 to 6 months. The second configuration is as follows: 12 hours at 100% full power, a 3-hour gradient to reduce power from 100% to 30% full power, 6 hours at 30% full power, a

37、3-hour gradient to increase power from 30% to 100% full power.Load following shall be performed for 80% of the full cycle time, one unit being on load follow operation while the other is on base load operation.B6 OPERATING CRITERIA6.1 Inservice inspectionYes, partially6.2 Periodic tests6.3 Zoning6.4

38、 Protection against sabotageYes YesYesSystem Design Manual-TEP Chapter 2, 3, 4, 5 Function, General Design, Description and Definition of Equipment, Operation ParametersRev B5/71Rapid load follow: 18-6Two variants were analyzed for this case: The first is as follows: 18 hours at 100% full power, 6 h

39、ours at 50% full power with a 2% gradient per minute for power setback and power increase between 100% and 50% full power.This load follow shall be performed up to 80% of the cycle time. Therefore the cycle deviation time between the two units shall range from 3 to 6 months. The second is as follows

40、: 18 hours at 100% full power, 6 hours at 30% full power with a 2% gradient per minute for power setback and increase between 100% and 30% full power.This load follow shall be performed over 80% of the cycle time, with one unit on load follow operation and the other on base load operation.The amount

41、 of effluents processed by the TEP system during a cycle is: 3706m3/cycle for a unit operating on base load, 16300m3/cycle for a unit operating on slow load follow: 12-3-6-3 with a 50% power setback, 26400m3/cycle for a unit operating on slow load follow: 12-3-6-3 with a 30% power setback.The volume

42、s indicated above are those strictly necessary for the compensation of fuel burnup, and correspond to one fuel cycle (cycle duration varies according to the type of load follow).The other effluents collected by the TEP (drainage of the pressurizer relief tank, excess letdown, leakage on the reactor

43、vessel joint and on valve stems, leakage on seal No.2 of the primary coolant pumps .) represent 1000 to 1500m3/year/unit.REMARKThe quantities processed in rapid load follow mode do not need to be calculated for the TEP system as rapid load follow produces less waste than slow load follow.These figur

44、es are based on the following design core cycle transients:7 hot shutdowns of 8 hours (restarting at xenon (Xe) peak),7 hot shutdowns of 90 hours (restarting after xenon (Xe) decay), 2 cold shutdowns, with one at xenon peak,1 refuelling shutdown with initial increase in boron concentration from 10 t

45、oSystem Design Manual-TEP Chapter 2, 3, 4, 5 Function, General Design, Description and Definition of Equipment, Operation ParametersRev B6/712200ppm.The nominal flowrate through each gas stripper is 27.2m3/h ( flowrate).The nominal flowrate through each evaporator is 3.5m3/h.3.2 EQUIPMENT DESIGN3.2.

46、1 Head storageHolding capacity is provided by two 75m3(usable volume)um RCV letdownkept under a permanentnitrogen blanket to prevent mixing of oxygen with hydrogen and also to prevent venting of radioactive fission gases to the surrounding.To reduce gaseous waste production each tank is operated wit

47、h a constant amount ofnitrogen rather than at a constant nitrogen pressure. Theeither plant unit.can receive effluents fromEach tank has a feed pump which is also used as a recirculation pump to minimize sludge buildup at the bottom of the tank. Each pump can, if necessary, take its suction from the

48、other tank.Duplication of the head storageallows inspection and maintenance of a tank duringunit shutdown without interfering with the operation of the other unit.The twoare equipped with a nitrogen degassing device which consists of: a nitrogen inlet line fitted on the head pump recirculation line,

49、 a nitrogen inlet line on the tank nitrogen blanket.This device allows the simultaneous nitrogen scavenging of the tank blanket and ascending bubbling of the tank contents.izing bases are as follows: When one purification section is unavailable, the corresponding head storage tank must be able to st

50、ore reactor coolant effluent from a single plant unit for a minimumum dilution rate of 27.2m3/h without releasing any part of theof 0.5 hour at agas blanket to the Gaseous Waste Treatment System (TEG).This 0.5 hour period enables the operator to choose the most suitable of the following three option

51、s: to continue filling of the tank up to high level (if possible), routing of the effluents to the other tank (if available), reducing effluent production by shutting down the plant unit. When one purification section is unavailable for longer than 0.5 hour during infrequent transients (hot shutdown

52、 with startup at xenon peak), the dischargeSystem Design Manual-TEP Chapter 2, 3, 4, 5 Function, General Design, Description and Definition of Equipment, Operation ParametersRev B7/71pressure setpoint to the TEG system may be exceeded provided that a minimum safety margin of 20m3 is maintained in the head storage tank (volume corresponding to the amount of effluent produced during the second phase of shutdown with Residual Heat Removal System (RRA) cooling starting at 180°C). When unavailability of a purification section is the result of a maintenance shutdown,the