CN103678795A - Method for nuclear power plant flameproof protection analysis - Google Patents
Method for nuclear power plant flameproof protection analysis Download PDFInfo
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- CN103678795A CN103678795A CN201310644156.9A CN201310644156A CN103678795A CN 103678795 A CN103678795 A CN 103678795A CN 201310644156 A CN201310644156 A CN 201310644156A CN 103678795 A CN103678795 A CN 103678795A
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Abstract
The invention belongs to the technical field of computer aided design, and particularly relates to a method for nuclear power plant flameproof protection analysis. According to the method, a relational database is utilized to define flameproof space and flameproof protection; cable information, equipment information and other relevant information are extracted as input conditions for flameproof protection analysis; cable paths needing to be protected are analyzed and the heat dissipation quantity of power cables are computed by extracting fire load values of electrical equipment and the cables so as to help to complete fire hazard analysis and fire weak link analysis. Thus, work efficiency and design quality of computer-aided cable laying design are improved.
Description
Technical field
The invention belongs to Computer-aided Design Technology field, be specifically related to a kind of method of utilizing relevant database to carry out flameproof protection analysis.
Background technology
Flameproof protection is divided into fire hazard analysis and the analysis of fire weak link.Fire hazard analysis is that the aspects such as fire load value to fire hazard, electrical equipment and cable, fire-extinguishing function concurrently are analyzed.The analysis of fire weak link is comprehensively and systematically to solve and to process the important consequence that fire causes: the common mode failure of equipment, the nuclear safety function in assurance power station.That is, refer to the fire load distribution situation of the layout of each fire protection space and associated room to carry out fire risk analysis, differentiate potential common-mode effect.Then carry out functional analysis again, the potential common-mode point of necessity is taked to supplement fire prevention measure, guarantee that fire can not cause that functions of the equipments lost efficacy and caused the forfeiture of necessary security function under the normal operation of unit or accident conditions.Fire common mode refers to that a fire may hinder the situation of certain security function.
Flameproof protection is a complexity and loaded down with trivial details work, and particularly for large scale engineering construction projects such as nuclear power stations, system is various, security level required is high, number of cables reaches four or five ten thousand, cable trace situation complexity, depends merely on manually and has been difficult to.Along with the widespread use of computer-aided design (CAD) in every field, to flameproof protection, work provides a kind of new thinking, utilizes exactly computing machine to assist the analytical work of flameproof protection.
Summary of the invention
The object of the present invention is to provide a kind of method of utilizing relevant database to carry out flameproof protection analysis; by extracting cable, equipment and other for information about; the initial conditions of analyzing as flameproof protection, for the realization of the analysis of area of computer aided nuclear island fire hazard and the analytical work of fire weak link.
Technical scheme of the present invention is as follows: a kind of method that nuclear power station flameproof protection is analyzed, comprises the steps:
(1) determine the required data of quoting when definition Back ground Information;
(2) before carrying out fire hazard analysis and the analysis of fire weak link, definition Back ground Information;
(3) according to the related data of equipment, cable, carry out fire load calculating, complete fire hazard analysis; According to the analysis to cable trace, carry out the calculating of power cable heat dissipation capacity, complete the analysis of fire weak link;
(4) according to the requirement of fire hazard analysis and the analysis of fire weak link, inquiry output desired data.
Further, the method that nuclear power station flameproof protection as above is analyzed, in step (1), the required data of quoting comprise fire protection space type, flameproof protection type, flameproof protection device identification and flameproof protection system;
Wherein, fire protection space type comprises fire safety district, fire safety community, evacuating personnel passage fire prevention community, non-security fire prevention community;
Flameproof protection type refers to the parameters of fire prevention overcoat, comprises fire endurance, temperature conductivity, thickness;
Flameproof protection device identification and flameproof protection system are for defining one of key element of fire prevention overcoat.
Further, the method that nuclear power station flameproof protection as above is analyzed, in step (2), defined Back ground Information comprises that fire protection space, flameproof protection cable, crane span structure section flameproof protection, system FVA mark, electrical penetration connect;
Wherein, the definition of fire protection space comprises following content: fire protection space type, fire protection space coding, fire endurance, series, room list;
The definition of flameproof protection cable comprises: first define fire protection space and use which kind of fire prevention overcoat, the cable that definition need to be carried out flameproof protection analysis again, and according to the analysis of fire weak link, the scope of the required analysis of cable is specified in definition, and the cable testing bridge mark " flameproof protection " in the fire protection space that appointment cable is positioned at or room;
The definition of crane span structure section flameproof protection comprises: first according to different fire compartments, define different protection codings, then according to the defined cable needing protection, select claimed cable testing bridge section in certain fire protection space or room;
System FVA mark refers to and marks carrying out the system of fire weak link analysis;
Electrical penetration connects the typing refer to by shell the inner, shell outer end, shell inner room, the outer room of shell, shell inner cable numbering, shell outer cable number information, specifies that electrical penetration shell is interior, shell outer cable connects corresponding situation.
Further, the method that nuclear power station flameproof protection as above is analyzed, the method that the fire load that carries out in step (3) calculates is as follows: by fire protection space or room analytical calculation and export fire load information, quantity or cable length, unit fire load and this room or the fire protection space fire load of typing fire protection space coding or the interior equipment of room coding, device coding or cable coding, cable series, type of cable, this room or fire protection space; The fire load information of the equipment in each room in fire protection space and cable is gathered and calculates total fire load of single fire protection space, total fire load of whole fire protection spaces.
Further, the method that nuclear power station flameproof protection as above is analyzed, the method that the power cable heat dissipation capacity of carrying out in step (3) is calculated is as follows: typing heat dissipation capacity is calculated required input parameter, comprises linear work resistance, calculates electric current, cable core number; Calculate the heat radiation total amount of the cable testing bridge section inner cable of required flameproof protection simultaneously, and the flameproof protection of this section of cable testing bridge heat radiation limit value, two values compare, and with this, judge whether to need air vent.
Further; the method that nuclear power station flameproof protection as above is analyzed, in step (4), the desired data of inquiry output comprises: fire disaster analyzing relates to system, fire protection space inquiry, fire disaster analyzing and relates to that room, the inquiry of fire disaster analyzing cable, the inquiry of cable fire-proof protection information, cable testing bridge section flameproof protection inventory, room heat dissipation capacity are inquired about, fire protection space safe level cable.
Further, the method that nuclear power station flameproof protection as above is analyzed, also comprises step (5), after completing fire hazard analysis and the analytical work of fire weak link, to revising the cable in path, ratifies change.
Beneficial effect of the present invention is as follows: the method that nuclear power station flameproof protection provided by the present invention is analyzed; by extracting the fiery payload values of electrical equipment and cable; analyze the heat dissipation capacity that needs protected cable trace and calculate power cable; assistance completes fire hazard analysis and the analysis of fire weak link, has improved work efficiency and the designing quality of area of computer aided Design of Cable Layout.
Accompanying drawing explanation
Fig. 1 is method flow diagram of the present invention;
Fig. 2 is the operation interface schematic diagram of setting up reference data;
Fig. 3 is the operation interface schematic diagram of definition fire protection space;
Fig. 4 is the operation interface schematic diagram of definition flameproof protection cable;
Fig. 5 is the operation interface schematic diagram of definition crane span structure section flameproof protection;
Fig. 6 is the operation interface schematic diagram of system FVA mark;
The operation interface schematic diagram that Fig. 7 connects for definition electrical penetration;
Fig. 8 is the operation interface schematic diagram that fire load calculates;
Fig. 9 is that fire disaster analyzing relates to system queries interface schematic diagram;
Figure 10 is fire protection space query interface schematic diagram;
Figure 11 is that fire disaster analyzing relates to room query interface schematic diagram;
Figure 12 is fire disaster analyzing cable query interface schematic diagram;
Figure 13 is cable fire-proof protection information query interface schematic diagram;
Figure 14 is cable testing bridge section flameproof protection inventory query interface schematic diagram;
Figure 15 is fire protection space safe level cable query interface schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, the method that nuclear power station flameproof protection provided by the invention is analyzed, comprises the steps:
Step S1, sets up reference data.
Before definition Back ground Information, should first to the reference data of Back ground Information, define, these are the parts in Back ground Information title, comprise fire protection space type, flameproof protection type, flameproof protection device identification and flameproof protection system.
Fire protection space type is to utilize the partition wall prevent fire spreading, and the intensity of a fire is limited in the space that the other parts with power station separate, and with this, divides fire district or fire prevention community.Fire protection space type is divided into SFS(fire safety district), ZFS(fire safety community), ZFA(evacuating personnel passage fire prevention community), the non-security fire prevention of ZNS(community) Si Ge district.
Flameproof protection type, is the fire insulation shielding measure for making equipment component or fire prevention other room, community not taked by influence of fire, conventionally adopts fire prevention overcoat to carry out entity isolation for this reason.After the parameters such as the fire endurance of definition fire prevention overcoat, temperature conductivity, thickness, for the heat dissipation capacity of power cable, calculate, whether perforate is taken a breath to judge fire insulation overcoat.Flameproof protection device identification, flameproof protection system are to define one of required key element of fire prevention overcoat.Corresponding operation interface as shown in Figure 2.Outer being enclosed within flameproof protection (crane span structure section) of fire prevention defines, and corresponding operation interface as shown in Figure 5.
Step S2, sets up Back ground Information.
Before fire hazard analysis and the analysis of fire weak link start, set up the every data that need, the every terms of information that mark relates to, comprises that fire protection space, flameproof protection cable, crane span structure section flameproof protection, system FVA mark, electrical penetration connect.
Fire protection space interface as shown in Figure 3, is the maintenance management that realizes fire protection space information definition and the affiliated room information of fire protection space.Nuclear island factory building comprises some dissimilar fire protection spaces, and a fire protection space can be comprised of some rooms of different factory buildings, floor, and each room only can belong to a fire protection space.The definition of fire protection space comprises following content: fire protection space type, fire protection space coding, fire endurance (being generally 60 minutes or 90 minutes), series, room list.Fire protection space coding rule: " #XXXYiiiiZ ", # represents machine group coding, XXX represents fire protection space type, Y represents relevant factory building, iiii represents sequence number (first pair of residing floor of this fire protection space of digitized representation, for the fire protection space that comprises a plurality of floors, this numeral represents the lowest floor of this fire protection space conventionally; The coding of second pair of digitized representation fire protection space), Z, only for SFS and ZFS, represents the main series of electrical equipment in this space, is mainly that A series, B are serial.
Fire protection space 1ZFSR0180B, represents No. 1 unit, and fire protection space type is ZFS, R factory building, the residing floor of this fire protection space is 1, fire protection space be encoded to 80, series is B row.Content in room coding, represents the room that this fire protection space comprises.
Flameproof protection cable; finger extracts the cable data that meets fire weak link analysis requirement from electric cable database; it requires to take fire protection space as elementary cell; the cable data that the fire weak link of take is analyzed related system is object; potential fire common-mode point in each fire protection space is differentiated; if its security function cannot guarantee; according to relevant physical parameter judgement two equipment of common mode under actual fire condition of fire in fire protection space, whether lose again simultaneously; if lose simultaneously, need to adopt non-active flameproof protection to process.First define fire protection space and use which kind of fire prevention overcoat; if flameproof protection type that 1ZFSR0180B was used is G2; then the cable that definition need to be carried out flameproof protection analysis in fire protection space 1ZFSR0180B; as 1AREM0200; last according to the analysis of fire weak link; it is the whole fire protection space of 1ZFSR0180B that the scope of the required analysis of cable 1AREM0200 is specified in definition; and 1AREM0200 is positioned at all cable testing bridge segment marks notes " flameproof protection " of fire protection space 1ZFSR0180B, as crane span structure 1R740H.The interface of flameproof protection cable definition as shown in Figure 4.
Flameproof protection (crane span structure section): first define different protection codings according to different fire compartments, 1JSR201WJ represents, 1 machine group number, flameproof protection systematic name JS; R factory building, the residing floor of this fire protection space is 2, sequence number is 01; flameproof protection device indicates WJ; again according in flameproof protection cable definition, the cable 1AREM0200 needing protection in fire protection space 1ZFS0284A, is chosen in claimed cable testing bridge section below whole fire protection space.In like manner, can also list the electrical equipment that will protect.The definition interfaces of crane span structure section flameproof protection as shown in Figure 5.
System FVA mark: stipulate in the performed related specifications of nuclear island factory building design for fire protection, criterion, requirement is carried out common mode failure assay to fire protection space, fire weak link is analyzed (Fire Vulnerability Analysis, be called for short FVA), be the main method of carrying out common mode failure assay.System FVA mark, realizes the function of system being carried out to fire weak link analysis mark, in order to extract data analysis by system, calculates.The system that needs are analyzed as APG, is chosen in mark FVA, and operation interface as shown in Figure 6.
Electrical penetration connects: by the typing to shell the inner, shell outer end, shell inner room, the outer room of shell, shell inner cable numbering, shell outer cable number information, specify that electrical penetration shell is interior, shell outer cable connects corresponding situation.Realization is connected with shell outer cable the shell inner cable of electrical penetration, so that the equipment that designer can arrive cable when extracting cable data directly shows, and without transferring through electrical penetration.As the cable that 1RRAA0601 and 1RRAA0600 are in electrical penetration shell, shell is connected outward, corresponding shell inner room 1R310a, shell the inner is 1ZZZL305.I, and shell outward room is 1W330, and shell outer end is 1ZZZL305.O.The operation interface that electrical penetration connects as shown in Figure 7.
Step S3, analytical calculation.
Fire load calculates, by fire protection space or room analytical calculation and export fire load information, the quantity or cable length, unit fire load and this room or the fire protection space fire load that comprise equipment in fire protection space coding or room coding, device coding or cable coding, cable series, type of cable, this room or fire protection space, and after form, the fire load information of the equipment in each room in fire protection space and cable is gathered and calculates total fire load of single fire protection space, total fire load of whole fire protection spaces.As the C class cable 1EASC0834 of serial B, in room 1R110 in fire protection space 1ZFSR0180B, the cable length of process be 22.62m, the cable specification that 1EASC0834 is used, its unit fire load is 1.91MJ/m, so the total fiery payload values of 1EASC0834 in 1R110 is 43.2MJ.The equipment fire load total value of in like manner adding up all in 1R110 is 320MJ, and cable fire load total value is 12291.72MJ, and the fiery load total value in whole room is 12611.72MJ.The operation interface that fire load calculates as shown in Figure 8.
Power cable heat dissipation capacity is calculated, and realizes power cable, and particularly low-voltage-powered fireproofing of cable protection heat radiation is calculated, and result of calculation and temperature limit are compared, and draws comparative result, the validity of mark computation process and result.
Analysis of heat transmission result of calculation is to list fire protection space coding at flameproof protection inventory; The room coding that fire protection space comprises and the security column in room; List the list of flameproof protection protection cable, and list the system of protection cable, correspondence; The protection length of the crane span structure segment number at flameproof protection cable place, crane span structure type, serial colour code, cable testing bridge; Calculate the heat radiation total amount of the cable testing bridge section inner cable of required protection simultaneously, and the flameproof protection of this section of cable testing bridge heat radiation limit value, two values compare; and list comparative result; with this, judge whether to need air vent, and whether remarks calculating is wrong, invalid input parameter etc.
Power heat dissipation capacity is calculated required input parameter linear work resistance, calculate electric current, cable core number etc., a thermal loss power P for n core cable
r=nI
2r
60l or
in above formula, n represents the cable number of phases; Electric current (A) is calculated in I representative; R
60represent unit length cable core resistance (Ω/m) when cable operation medial temperature is 60 ℃; ρ
trepresent the cable core resistivity (Ω m or Ω mm2/m) when cable operation medial temperature is 60 ℃; L represents cable length (m); S represents cable core cross section (mm2).According to above-mentioned formula, calculate the heat dissipation capacity of all cables in this section of pallet, itself and be the heat dissipation capacity of this section of pallet cable.
In addition also need according to calculating the power limit in flameproof protection according to formula.
Wherein Δ t represents the temperature difference between temperature in room environment and fireproof covering (room environment is got 30 ℃ conventionally, and in fireproof covering, temperature is got 50 ℃, i.e. Δ t=20).
λ is illustrated in the heat of common protection position conduction, comprises heat by conduction and surface heat exchanging (W/m2 ℃), value 0.037.
I represents the width in flameproof protection, i.e. crane span structure width.H represents the height in fireproof covering, i.e. crane span structure side watchman's wooden clapper height.E represents the wall thickness of flameproof protection, value 0.076.P is fireproof covering shell girth, i.e. p=2 * (I+h)+2 π e.The wide crane span structure of 500mm for example, crane span structure side watchman's wooden clapper height is 75mm, its Power Limitation is 12.253W/m.
By the calculating of above-mentioned two steps, relatively whether cable testing bridge section inner cable heat dissipation capacity is higher than the power limit in protective sleeve, if higher than limit value; need on protective sleeve, take venting practice; at flameproof protection, put perforate, if lower than limit value, carry out the analysis of next step.Calculate I
50
I
50＝K
f*I
30*SQR[(T
c-T
i)/(T
c-T
r)]
According to above-mentioned formula, calculate I
50
I
50for proof strength, i.e. current value 50 ℃ time.
K
ffor approximation coefficient, when environment temperature is 50 ℃, cross section is 95mm2 or larger cable, K
fget 0.72, cross section is less than the cable of 95mm2, K
fget 0.8.
I
30rated current while providing 30 ℃ for supplier.
T
crepresent the acceptable maximum temperature of cable core, PVC material get 70 ℃, XLPE material get 90 ℃.
T
ifor temperature in fireproof covering, get 50 ℃.
T
rfor room environment temperature, get 30 ℃.
Derived expression I thus
50=K
f* I
300.707(70 ℃) or I *
50=K
f* I
30*0.8165(90 ℃).
Relatively calculate electric current I and whether be greater than I
50if, higher than I
50, need on protective sleeve, take venting practice.If lower than I
50, need on protective sleeve, not take venting practice.
Step S4, inquiry output desired data.
After Back ground Information definition and analytical calculation; just can be according to the requirement of analyzing according to fire hazard analysis and fire weak link; inquire about and export the related information of every flameproof protection, comprise that fire disaster analyzing relates to the inquiry of system, fire protection space, fire disaster analyzing and relates to that room, the inquiry of fire disaster analyzing cable, the inquiry of cable fire-proof protection information, cable testing bridge section flameproof protection inventory, room heat dissipation capacity are inquired about, fire protection space safe level cable.
Fire disaster analyzing relates to system, can all systems that marked FVA of query display.Interface as shown in Figure 9.
Fire protection space inquiry, by the combination of SPAG(unit+factory building+floor) inquiry that realizes the fire protection space information within the scope of nuclear island exports, and comprises SPAG, fire protection space type, fire protection space coding, fire endurance, series.Interface as shown in figure 10.
Fire disaster analyzing relates to room, by fire protection space coding, realizes the inquiry output of the contained room list of single or multiple fire protection spaces, and interface as shown in figure 11.
The inquiry of fire disaster analyzing cable, realizes inquiry and the output of fire protection space or room inner cable information, and can be by series statistics number of cables extension and footing; Realize the inquiry output of cable trace information.Can inquire about the cable information in some fire protection space of output, certain or some rooms, in room or in fire protection space inner cable inquiry Output rusults by series statistics number of cables and whole number of cables.Can inquire about mark FVA cable, also can inquire about and not mark FVA or whole cable simultaneously.Press room (fire protection space) inquiry, can list all cables through inquiry room (fire protection space) crane span structure, and list all information of this cable, comprise that room coding (fire protection space coding), cable coding, cable series, the initial room of cable, the initial equipment of cable, cable initial part, cable stop room, cable termination device, cable termination member, when if initial or termination device is penetration piece, also can in Function room, Function equipment, Function parts hurdle, list penetration piece other end cable connection device information.Click a certain cable; in cable trace information, can show this cable crane span structure segment number or the hole numbering of process, and protection type (MCA(does not protect but needs fire risk analysis), the MCP(of the fire protection space at this crane span structure or hole place, room coding and cable need to protect), " blank ").Fire disaster analyzing cable query interface as shown in figure 12.
The inquiry of cable fire-proof protection information, realizes the inquiry output of whole nuclear island factory building or each factory building cable protection information, comprises length, the flameproof protection type of protected cable testing bridge numbering, each cable protection and always protects the information such as length.The SPAG comprising according to flameproof protection coding, the flameproof protection information that can inquire about the whole nuclear island factory building of output or each factory building, comprises flameproof protection coding, the total length of flameproof protection, flameproof protection type.Meanwhile, in protecting crane span structure information, also can show all flameproof protection codings under this SPAG, and the coding of the cable testing bridge in flameproof protection.The cable coding of protecting in all flameproof protections in protection cable information under this SPAG of meeting demonstration and the coding of common mode cable.In statistical information, show, each factory building is always protected length.Cable fire-proof protection information query interface as shown in figure 13.
Cable testing bridge section flameproof protection inventory; by the above-mentioned definition to flameproof protection cable, flameproof protection (crane span structure section); and the calculating of power cable heat dissipation capacity; can realize the inquiry output of cable testing bridge section flameproof protection inventory; so that the work of having assisted fire weak link to analyze, working-yard can prevent fires coated according to cable testing bridge section flameproof protection inventory to crane span structure.Crane span structure section flameproof protection inventory is listed fire protection space coding; The room coding that fire protection space comprises and the security column in room; List the list of flameproof protection protection cable, and list system and the corresponding common mode cable of protection cable, correspondence; The protection length of the crane span structure segment number at flameproof protection cable place, crane span structure specification, crane span structure type, serial colour code, cable testing bridge; Calculate the heat radiation total amount of the cable testing bridge section inner cable of required protection simultaneously, and the flameproof protection of this section of cable testing bridge heat radiation limit value, two values compare, and list comparative result, with this, judge whether to need air vent.Cable testing bridge section flameproof protection inventory query interface as shown in figure 14.
Fire protection space safe level cable, by the list of fire protection space inquiry output safety level cable, i.e. series, all cables of colour code except A CO.List content has between protective zone coding, room number, cable number, cable series, cable applications, origin or beginning room, origin or beginning equipment, terminal house, terminal device.Fire protection space safe level cable query interface as shown in figure 15.
Step S5, change.
For the cable that carried out the analysis of fire weak link, on-the-spot by according to analysis result to the cable testing bridge coated installation of preventing fires, so in the design module of cable laying software, must not arbitrarily change cable trace, to avoid the different of design result and on-the-spot actual installation result.If need to change cable trace, need to carry out modification application, agree to could modify to cable trace after changing.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if of the present invention these are revised and within modification belongs to the scope of the claims in the present invention and equivalent technology thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (7)
1. the method that nuclear power station flameproof protection is analyzed, comprises the steps:
(1) determine the required data of quoting when definition Back ground Information;
(2) before carrying out fire hazard analysis and the analysis of fire weak link, definition Back ground Information;
(3) according to the related data of equipment, cable, carry out fire load calculating, complete fire hazard analysis; According to the analysis to cable trace, carry out the calculating of power cable heat dissipation capacity, complete the analysis of fire weak link;
(4) according to the requirement of fire hazard analysis and the analysis of fire weak link, inquiry output desired data.
2. the method that nuclear power station flameproof protection as claimed in claim 1 is analyzed, is characterized in that: in step (1), the required data of quoting comprise fire protection space type, flameproof protection type, flameproof protection device identification and flameproof protection system;
Wherein, fire protection space type comprises fire safety district, fire safety community, evacuating personnel passage fire prevention community, non-security fire prevention community;
Flameproof protection type refers to the parameters of fire prevention overcoat, comprises fire endurance, temperature conductivity, thickness;
Flameproof protection device identification and flameproof protection system are for defining one of key element of fire prevention overcoat.
3. the method that nuclear power station flameproof protection as claimed in claim 2 is analyzed, is characterized in that: in step (2), defined Back ground Information comprises that fire protection space, flameproof protection cable, crane span structure section flameproof protection, system FVA mark, electrical penetration connect;
Wherein, the definition of fire protection space comprises following content: fire protection space type, fire protection space coding, fire endurance, series, room list;
The definition of flameproof protection cable comprises: first define fire protection space and use which kind of fire prevention overcoat, the cable that definition need to be carried out flameproof protection analysis again, and according to the analysis of fire weak link, the scope of the required analysis of cable is specified in definition, and the cable testing bridge mark " flameproof protection " in the fire protection space that appointment cable is positioned at or room;
The definition of crane span structure section flameproof protection comprises: first according to different fire compartments, define different protection codings, then according to the defined cable needing protection, select claimed cable testing bridge section in certain fire protection space or room;
System FVA mark refers to and marks carrying out the system of fire weak link analysis;
Electrical penetration connects the typing refer to by shell the inner, shell outer end, shell inner room, the outer room of shell, shell inner cable numbering, shell outer cable number information, specifies that electrical penetration shell is interior, shell outer cable connects corresponding situation.
4. the method that nuclear power station flameproof protection as claimed in claim 3 is analyzed, it is characterized in that: the method that the fire load that carries out in step (3) calculates is as follows: by fire protection space or room analytical calculation and export fire load information, quantity or cable length, unit fire load and this room or the fire protection space fire load of typing fire protection space coding or the interior equipment of room coding, device coding or cable coding, cable series, type of cable, this room or fire protection space; The fire load information of the equipment in each room in fire protection space and cable is gathered and calculates total fire load of single fire protection space, total fire load of whole fire protection spaces.
5. the method that nuclear power station flameproof protection as claimed in claim 4 is analyzed, it is characterized in that: the method that the power cable heat dissipation capacity of carrying out in step (3) is calculated is as follows: typing heat dissipation capacity is calculated required input parameter, comprise linear work resistance, calculate electric current, cable core number; Calculate the heat radiation total amount of the cable testing bridge section inner cable of required flameproof protection simultaneously, and the flameproof protection of this section of cable testing bridge heat radiation limit value, two values compare, and with this, judge whether to need air vent.
6. the method that nuclear power station flameproof protection as claimed in claim 1 is analyzed, is characterized in that: in step (4), the desired data of inquiry output comprises: fire disaster analyzing relates to system, fire protection space inquiry, fire disaster analyzing and relates to that room, the inquiry of fire disaster analyzing cable, the inquiry of cable fire-proof protection information, cable testing bridge section flameproof protection inventory, room heat dissipation capacity are inquired about, fire protection space safe level cable.
7. the method that nuclear power station flameproof protection as claimed in claim 1 is analyzed, is characterized in that: also comprise step (5), after completing fire hazard analysis and the analytical work of fire weak link, to revising the cable in path, ratify change.
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| CN104282349A (en) * | 2014-08-05 | 2015-01-14 | 中国核电工程有限公司 | Method for guiding nuclear power plant to be safe under condition of fire disaster |
| CN104951627A (en) * | 2015-07-14 | 2015-09-30 | 广州中国科学院工业技术研究院 | Fire analysis method and system for horizontal multi-layer cable bridges of nuclear power plant |
| CN109934027A (en) * | 2019-02-19 | 2019-06-25 | 中广核工程有限公司 | A kind of nuclear power plant's net fire effect analogy method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104282349A (en) * | 2014-08-05 | 2015-01-14 | 中国核电工程有限公司 | Method for guiding nuclear power plant to be safe under condition of fire disaster |
| CN104282349B (en) * | 2014-08-05 | 2017-03-15 | 中国核电工程有限公司 | Nuclear power plant is guided under a kind of fire condition to the method for safe condition |
| CN104951627A (en) * | 2015-07-14 | 2015-09-30 | 广州中国科学院工业技术研究院 | Fire analysis method and system for horizontal multi-layer cable bridges of nuclear power plant |
| CN104951627B (en) * | 2015-07-14 | 2018-07-13 | 广州中国科学院工业技术研究院 | Nuclear power plant's transverse direction multi-layer cable crane span structure fire disaster analyzing method and system |
| CN109934027A (en) * | 2019-02-19 | 2019-06-25 | 中广核工程有限公司 | A kind of nuclear power plant's net fire effect analogy method and system |
| CN109934027B (en) * | 2019-02-19 | 2023-02-28 | 中广核工程有限公司 | Fire consequence simulation method and system for nuclear power plant |
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| CN103678795B (en) | 2017-05-31 |
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