CN104409119A - System and method for displaying flow sampling in nuclear power plant - Google Patents
System and method for displaying flow sampling in nuclear power plant Download PDFInfo
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- CN104409119A CN104409119A CN201410668332.7A CN201410668332A CN104409119A CN 104409119 A CN104409119 A CN 104409119A CN 201410668332 A CN201410668332 A CN 201410668332A CN 104409119 A CN104409119 A CN 104409119A
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/06—Devices or arrangements for monitoring or testing fuel or fuel elements outside the reactor core, e.g. for burn-up, for contamination
- G21C17/07—Leak testing
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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
Abstract
The invention discloses a system and a method for displaying flow sampling in a nuclear power plant, and solves the technical problem that in the prior art, the nuclear power plant flow sampling display device cannot automatically display multiple paths of flow measurement signals in real time. The system comprises a signal acquisition processing module, a first output module, and a second output module, wherein the signal acquisition processing module is used for acquiring the flow measurement signals outputted by a plurality of flowmeters, processing the flow measurement signals, obtaining volume flow values, comparing the volume flow values with preset values to obtain comparative results, and converting the comparative results to switching value to obtain switching value signals; the first output module is used for outputting the volume flow values and outputting alarm signals based on the comparative results; the second output module is used for outputting alerting signals based on the switching value signals. The system can automatically, directly and efficiently output and display the processing results of the sampling flow signals, and give an alarm, so as to realize the technological effect of allowing operators to accurately and quickly obtain the measurement result.
Description
Technical field
The present invention relates to Nuclear Power Station sampling technique field, particularly relate to a kind of nuclear power station flow sampling display system and method.
Background technology
Nuclear Power Station sampling system can intensively sample the liquids and gases in nuclear power generating sets, and carries out chemistry and radioanalysis to sampling result; Although this system does not directly bear nuclear safety function, be conducive to diagnosis and the control of nuclear power generating sets accident; Therefore, Nuclear Power Station sampling system is the indispensable ingredients of nuclear power generating sets.
Wherein, liquid sampling (the i.e. nuclear power station flow sampling) link of Nuclear Power Station sampling system, comprise from reactor main circuit and containment spray system, collect highly radioactive fluid sample, and from steam generator blowdown system sampling, check whether primary Ioops is revealed to secondary circuit.
Traditional Nuclear Power Station sample flow sampling is realized by the mode of " toggle switch+secondary indicator gauge ", Ji Ge road flow signal delivers to toggle switch, toggle switch is connected to frequency translation unit, then signal is delivered to secondary indicator gauge, which, as flow value need be seen, just toggle switch is switched on this road flow signal.Toggle switch and secondary indicator gauge are arranged in the frame in the yellow district of nuclear power station, wherein, toggle switch can only realize at most six tunnels and switch, two units of nuclear power station need 5 such frames altogether, realize the Presentation Function on the spot of core sampling (REN, Reactor Nuclear sampling) whole flow signal of system.In the whether normal process of monitoring each road flow signal, need the special operator of arrangement to control toggle switch in the yellow district of nuclear power station, and check each road flow signal; Although the nuclear radiation dose rate in the yellow district of nuclear power station is not more than 2mSv/h, if operator can bring harmful effect to health in this area stay for a long time.
Visible, there is Nuclear Power Station sample flow sampling display device in the prior art can not automatically and real-time technical matters of each road flow measurement signal being carried out to display translation.
Summary of the invention
The present invention is directed to and to exist in prior art, Nuclear Power Station sample flow sampling display device can not automatically and real-time technical matters of each road flow measurement signal being carried out to display translation, a kind of nuclear power station flow is provided to sample display system and method, achieve and automatically, intuitively and efficiently display translation is carried out to the result of each road sample flow signal, make operator know measurement result accurately and quickly, and reduce the technique effect of operator in the nuclear radiation district hold-up time.
On the one hand, embodiments provide a kind of nuclear power station flow sampling display system, comprising:
Signal acquisition process module, for gathering the flow measurement signal that multiple flowmeter exports, described flow measurement signal is processed, obtain volumetric flow units, and described volumetric flow units and preset value are compared, obtain comparative result, and switching value conversion processing is carried out to described comparative result, obtain on-off model;
First output module, for showing described volumetric flow units, and exports the first alerting signal based on described comparative result;
Second output module, for exporting the second alerting signal based on described on-off model.
Optionally, described flow counts turbo flow meter, and described signal acquisition process module, comprising:
High-speed counting unit, the frequency signal that the multiple turbo flow meters for gathering described core sampling system export;
CPU (central processing unit), for processing described frequency signal, obtains described volumetric flow units, and described volumetric flow units and described preset value is compared, and obtains described comparative result;
Switch amount output unit, for carrying out switching value conversion processing to described comparative result, obtains described on-off model.
Optionally, the instrument coefficient corresponding with described turbo flow meter is built-in with in described CPU (central processing unit).
Optionally, described first output module is: the sampling being arranged on described nuclear power station is on-the-spot, the host computer be connected with described signal acquisition process module.
Optionally, described second output module is: the master control system alarm module being arranged on the master-control room of the described nuclear power station of far-end.
Optionally, described nuclear power station flow sampling display system, also comprises:
Switch, for being transmitted to described host computer by described volumetric flow units and described comparative result, and through described host computer display and warning.
Optionally, described nuclear power station flow sampling display system, also comprises:
Auxiliary reclay, for described on-off model is transmitted to described master control system, and reports to the police through the alarm module of described master control system.
On the other hand, the embodiment of the present invention additionally provides a kind of nuclear power station flow sampling display packing, and described method comprises step:
The flow measurement signal that S1, the multiple flowmeters gathering the core sampling system of nuclear power station export, described flow measurement signal is processed, obtain volumetric flow units, and described volumetric flow units and preset value are compared, obtain comparative result, and switching value conversion processing is carried out to described comparative result, obtain on-off model;
S2, show described volumetric flow units, and export the first alerting signal based on described comparative result; And/or export the second alerting signal based on described on-off model.
Optionally, described flowmeter is specially turbo flow meter, and described step S1 specifically comprises:
The frequency signal that S11, the multiple turbo flow meters gathering described core sampling system export;
S12, described frequency signal to be processed, obtain described volumetric flow units, and described volumetric flow units and described preset value are compared, obtain described comparative result;
S13, switching value conversion processing is carried out to described comparative result, obtain described on-off model.
Optionally, described step S12 is specially:
Based on the instrument coefficient that described turbo flow meter is corresponding, described frequency signal is processed, obtain described volumetric flow units, and described volumetric flow units and described preset value are compared, obtain described comparative result.
Optionally, described step S2, is specially:
In the sampling of described nuclear power station, on-the-spot yellow district shows described volumetric flow units, and exports described first alerting signal based on described comparative result; And/or export described second alerting signal at the master-control room of the described nuclear power station of far-end based on described on-off model.
One or more technical schemes that the embodiment of the present invention provides, at least have following technique effect or advantage:
Due in embodiments of the present invention, the flow sampling display system in Nuclear Power Station sampling system, comprising: signal acquisition process module and two output modules (i.e. first, second output module); Wherein, the flow measurement signal that described signal acquisition process module exports for the multiple flowmeters gathering the core sampling system of nuclear power station, described flow measurement signal is processed, obtain volumetric flow units, and described volumetric flow units and preset value are compared, obtain comparative result, and switching value conversion processing is carried out to described comparative result, obtain on-off model; Described first output module, for exporting described volumetric flow units, and exports the first alerting signal based on described comparative result; Described second output module, for exporting the second alerting signal based on described on-off model.That is, by the programmable logic controller (PLC) (PLC by maturation, Programmable Logic Controller) technology be applied to nuclear power station flow sampling display system in, concrete, signal acquisition process module carries out flow measurement signal collection and data-signal process based on PLC technology, obtain result, first, second output module exports result, efficiently solving the sampling of Nuclear Power Station sample flow in prior art display device can not automatically and real-time technical matters of each road flow measurement signal being carried out to display translation, achieve automatically, intuitively and efficiently display translation is carried out to the result of each road sample flow signal, operator is made to know measurement result accurately and quickly, and reduce the technique effect of operator in the nuclear radiation district hold-up time.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The first nuclear power station flow sampling display system architectures block diagram that Fig. 1 provides for the embodiment of the present invention;
The second nuclear power station flow sampling display system architectures block diagram that Fig. 2 provides for the embodiment of the present invention;
The third nuclear power station flow sampling display system architectures block diagram that Fig. 3 provides for the embodiment of the present invention;
Nuclear power station 1, No. 2 unit flow sampling display system configuration structures that Fig. 4 provides for the embodiment of the present invention;
The control box structural representation being provided with signal acquisition process module that Fig. 5 A-Fig. 5 B provides for the embodiment of the present invention;
The first nuclear power station flow sampling display packing process flow diagram that Fig. 6 provides for the embodiment of the present invention;
The second nuclear power station flow sampling display packing process flow diagram that Fig. 7 provides for the embodiment of the present invention.
Embodiment
The embodiment of the present invention samples display system by providing a kind of nuclear power station flow, solving the Nuclear Power Station sample flow sampling display device that exists in prior art can not automatically and real-time technical matters of each road flow measurement signal being carried out to display translation, achieve and automatically, intuitively and efficiently display translation is carried out to the result of each road sample flow signal, make operator know measurement result accurately and quickly, and reduce the technique effect of operator in the nuclear radiation district hold-up time.
The technical scheme of the embodiment of the present invention is for solving the problems of the technologies described above, and general thought is as follows:
Embodiments provide a kind of nuclear power station flow sampling display system, comprise: signal acquisition process module, for gathering the flow measurement signal that multiple flowmeter exports, described flow measurement signal is processed, obtain volumetric flow units, and described volumetric flow units and preset value are compared, obtain comparative result, and switching value conversion processing is carried out to described comparative result, obtain on-off model; First output module, for showing described volumetric flow units, and exports the first alerting signal based on described comparative result; Second output module, for exporting the second alerting signal based on described on-off model.
Visible, in embodiments of the present invention, by the PLC technology of maturation being applied in nuclear power station flow sampling display system, concrete, signal acquisition process module carries out flow measurement signal collection and data-signal process based on PLC technology, obtain result, first, second output module exports result, efficiently solving the sampling of Nuclear Power Station sample flow in prior art display device can not automatically and real-time technical matters of each road flow measurement signal being carried out to display translation, achieve automatically, intuitively and efficiently display translation is carried out to the result of each road sample flow signal, operator is made to know measurement result accurately and quickly, and reduce the technique effect of operator in the nuclear radiation district hold-up time.
In order to better understand technique scheme, below in conjunction with Figure of description and concrete embodiment, technique scheme is described in detail, the specific features being to be understood that in the embodiment of the present invention and embodiment is the detailed description to technical scheme, instead of the restriction to technical scheme, when not conflicting, the technical characteristic in the embodiment of the present invention and embodiment can combine mutually.
Embodiment one
Please refer to Fig. 1, embodiments provide a kind of nuclear power station flow sampling display system, described system comprises:
Signal acquisition process module 10, for gathering the flow measurement signal that multiple flowmeter exports, described flow measurement signal is processed, obtain volumetric flow units, and described volumetric flow units and preset value are compared, obtain comparative result, and switching value conversion processing is carried out to described comparative result, obtain on-off model; Wherein, described multiple flowmeter is specifically arranged in the core sampling system of nuclear power station;
First output module 20, for showing described volumetric flow units, and exports the first alerting signal based on described comparative result;
Second output module 30, for exporting the second alerting signal based on described on-off model.
In specific implementation process, in order to collect highly radioactive fluid sample from reactor main circuit and containment spray system, and sample from steam generator blowdown system, check whether primary Ioops is revealed to secondary circuit, usual meeting is at reactor main circuit, multiple flowmeter is installed (as turbo flow meter in the sampling line of containment spray system and steam generator blowdown system, differential pressure flowmeter etc.), flowmeter is according to the difference of its principle and character, the form of expression measuring the flow signal (i.e. described flow measurement signal) obtained is also different, if turbo flow meter output signal is pulse, differential pressure flowmeter produces the pressure differential proportional with flow (flow velocity), so the flow measurement signal needing flow meter to export processes, obtain more intuitive volumetric flow units, further, in order to determine that whether obtained volumetric flow units is qualified, and can output alarm signal when determining that it is defective, described volumetric flow units and described preset value (i.e. standard value) is also needed to compare, obtain comparative result, to make the first output module 20 while volumetric flow rate described in display translation, based on described comparative result output alarm signal, in addition, further process is done to described comparative result, namely carry out switching value conversion processing, obtain on-off model, to make the second output module 30 based on described on-off model output alarm signal.First output module 20 and the second output module 30 can carry out display translation, audio frequency exports or send into next stage processing module is further processed.Concrete, according to different user demands, can be set in described comparative result and show that described volumetric flow units is greater than described preset value or described volumetric flow units when being less than described preset value, the first output module 20 is based on described comparative result output alarm signal; When carrying out switching value conversion processing to described comparative result, can set when comparative result shows that described volumetric flow units is greater than described preset value, obtaining on-off model is " 1 ", and the second output module 30 is after the on-off model of " 1 " at read value, output alarm signal; Certainly, be more than the one in many situations, the rest may be inferred for other situation, repeats no longer one by one here.
Concrete, signal acquisition process module 10 adopts PLC technology, namely a class programmable controller is adopted, in controller internally stored program, actuating logic computing, sequential control, regularly, counting and the user oriented instruction such as arithmetical operation, realize robotization, complete flow signal acquisition, process and output real-time and efficiently.
There is due to turbo flow meter the advantages such as precision is high, reproducible, inferred-zero drift, high range ratio, and its output signal is pulse (i.e. frequency signal), be easy to digitizing, in the present embodiment, described flowmeter specifically adopts turbo flow meter, further, please refer to Fig. 2, signal acquisition process module 10, specifically comprises:
High-speed counting unit 101, the frequency signal that the multiple turbo flow meters for gathering described core sampling system export; Concrete, directly gather described frequency signal by high-speed counting unit 101, measuring accuracy is higher;
CPU (central processing unit) (as CPU) 102, for processing described frequency signal, obtains described volumetric flow units, and described volumetric flow units and described preset value is compared, and obtains described comparative result;
Switch amount output unit 103, for carrying out switching value conversion processing to described comparative result, obtains described on-off model.
Further, in order to the high volumetric flow units of degree of accuracy can be calculated based on described flow measurement signal, in CPU (central processing unit) 102, the instrument coefficient corresponding with described turbo flow meter is built-in with; Wherein, instrument coefficient is a constant, and its numerical value is tested for reality and obtained.Concrete, when programming to CPU (central processing unit) 102, by the instrument coefficient (k on the instrument check list of turbo flow meter
f) be built in CPU (central processing unit) 102.The volumetric flow rate of turbo flow meter is directly proportional to the angular velocity of rotation of turbine, and its angular velocity of rotation shows with the pulse signal exported, therefore the volumetric flow rate of turbo flow meter is directly proportional to the pulse signal frequency (f) of output, its relational expression is: q
v=f/k
f, in formula: q
vfor volumetric flow rate.
In specific implementation process, the first output module 20 is: the on-the-spot yellow district of sampling being arranged on described nuclear power station, the host computer be connected with signal acquisition process module 10; Second output module 30 is: the master control system alarm module being arranged on the master-control room of the described nuclear power station of far-end, i.e. DCS (Distributed ControlSystem) alarm module.Wherein, described host computer adopts industrial touch-screen, can be used in carrying out display translation to described volumetric flow rate and described first alerting signal; In addition, touch-screen handled easily person operates, and is conducive to the efficiency improving man-machine interaction.Visible, in the present embodiment, the result of nuclear power station flow sampling display system can show in two regions simultaneously, especially when measuring acquisition problem data, both can the yellow district (Yellow Zone) of nuclear power station near circuit system, warning can be carried out again export at the master-control room slightly away from circuit system, to enable to guarantee that operator knows that primary Ioops is revealed to secondary circuit fast, control to carry out adjustment to unit in time.
In specific implementation process, in order to the described volumetric flow units obtained and described comparative result being sent to described host computer, please refer to Fig. 3, described nuclear power station flow sampling display system, also comprise: switch 40, for described volumetric flow units and described comparative result are transmitted to described host computer 20, and show through host computer 20 and report to the police; Wherein, switch 40 can adopt industrial ethernet switch.Signal acquisition process module 10 is slave computer PLC, and its volumetric flow units generated and comparative result, send host computer to by industrial ethernet switch and carry out display and report to the police on the spot.
In addition, warning output is carried out in order to the described on-off model obtained be sent into described master control system (DCS), still please refer to Fig. 3, described nuclear power station flow sampling display system, also comprise: auxiliary reclay 50, for described on-off model is transmitted to described master control system, and report to the police (i.e. DCS alarm module) through the alarm module 30 of described master control system.Concrete, although there is certain driving force for generation of the switch amount output unit 103 of described on-off model, DCS alarm module can be directly accessed, but in order to improve the isolation of reliability and equipment room, the signal that switch amount output unit 103 exports auxiliary reclay 50 can be delivered to.
Generally speaking, in the embodiment of the present application, nuclear power station flow sampling display system have employed the very ripe PLC of industrial application and touch screen technology, and equipment dependability is high, achieves the real-time Presentation Function of core sampling system flow measurement; Decrease operated by personnel's workload and the residence time in the yellow district of nuclear power station, decrease personnel's radioactive dose, improve personnel's occupational health level.
Embodiment two
According to the feature that the two heap of domestic general kernel group of motors is arranged, need to arrange two units for two nuclear reactors, i.e. No. 1 unit and No. 2 units in nuclear power plant; In the present embodiment, the liquid sampling principle of the core sampling system of 1, No. 2 unit for nuclear power station is specifically introduced:
The sample of flow sampling extracts from following each system: reactor coolant loop, radioactive liquid disposal system, radioactive gas recovery system, steam generator secondary side and steam generator blowdown system and other backup systems.In the present embodiment, turbo flow meter is adopted to carry out flow measurement, this turbo flow meter does not need external power supply to power, output frequency signal, two units totally 26 turbo flow meters, wherein, 20 turbo flow meters are for measuring each 10 flow signals of 1, No. 2 unit, all the other 6 turbo flow meters are for measuring 6 common signals of two units, as shown in table 1, are the function statistical form of the common signal of 1, No. 2 unit signal and two units:
Table 1
| Sequence number | Unit | Flow item | Function |
| 1 | 1 | Flow 1 | Sample flow after voltage stabilizer gas phase high temperature sampling cooler |
| 2 | 1 | Flow 2 | Sample flow after primary Ioops high temperature sampling cooler 1 |
| 3 | 1 | Flow 3 | Sample flow after primary Ioops high temperature sampling cooler 2 |
| 4 | 1 | Flow 4 | Sample flow after voltage stabilizer liquid phase high temperature sampling cooler |
| 5 | 1 | Flow 5 | Change and hold Ore-controlling Role downstream sample flow |
| 6 | 1 | Flow 6 | Change and hold Ore-controlling Role upstream sample flow |
| 7 | 1 | Flow 7 | Sample flow after residual filter |
| 8 | 1 | Flow 8 | Hydrogen meter sample flow |
| 9 | 1 | Flow 9 | Boron table sample flow after accident |
| 10 | 1 | Flow 10 | Boron table downstream sample flow |
| 11 | Public | Flow 11 | Boron recovery system cation bed desalination device 1 exports sample flow |
| 12 | Public | Flow 12 | Boron recovery system cation bed desalination device 2 exports sample flow |
| 13 | Public | Flow 13 | Boron recovery system desalination prefilter 1 exports sample flow |
| 14 | Public | Flow 14 | Boron recovery system desalination prefilter 2 exports sample flow |
| 15 | Public | Flow 15 | Boron recovery system resin is detained filtrator 1 and exports sample flow |
| 16 | Public | Flow 16 | Boron recovery system resin is detained filtrator 2 and exports sample flow |
| 17 | 2 | Flow 17 | Sample flow after voltage stabilizer gas phase high temperature sampling cooler |
| 18 | 2 | Flow 18 | Sample flow after primary Ioops high temperature sampling cooler 1 |
| 19 | 2 | Flow 19 | Sample flow after primary Ioops high temperature sampling cooler 2 |
| 20 | 2 | Flow 20 | Sample flow after voltage stabilizer liquid phase high temperature sampling cooler |
| 21 | 2 | Flow 21 | Change and hold Ore-controlling Role downstream sample flow |
| 22 | 2 | Flow 22 | Change and hold Ore-controlling Role upstream sample flow |
| 23 | 2 | Flow 23 | Sample flow after residual filter |
| 24 | 2 | Flow 24 | Hydrogen meter sample flow |
| 25 | 2 | Flow 25 | Boron table sample flow after accident |
| 26 | 2 | Flow 26 | Boron table downstream sample flow |
Then, please refer to Fig. 4, the global semaphore of 1, No. 2 unit and two units all separates, can not interact when overhauling.In the diagram, respectively 1, No. 2 unit is provided with two signal acquisition process modules (401 and 402); In practical work process, signal acquisition process module (401 and 402) is powered respectively by a power module; Signal acquisition process module 401 comprises a CPU (central processing unit) 4011, three high-speed counting unit (4012 ~ 4014) and a switch amount output unit 4015, same, signal acquisition process module 402 comprises a CPU (central processing unit) 4021, three high-speed counting unit (4022 ~ 4024) and a switch amount output unit 4025; In order to can Quick Acquisition 20 flow signals (as in table 1, the flow signal of sequence number 1 ~ 10 and 17 ~ 26), in signal acquisition process module (401 and 402), be provided with three high-speed counting unit respectively; For six public flow signals that sequence number in table 1 is 11 ~ 16, be provided with two high-speed counting unit (4031,4032) and a CPU (central processing unit) 4033 carries out Signal sampling and processing, same, high-speed counting unit (4031,4032) and CPU (central processing unit) 4033 are by a power module powered operation; Wherein, can determine according to concrete service condition for the number gathering the high-speed counting unit of 1, No. 2 unit flow signal and two unit global semaphores, be not specifically limited here.
In the present embodiment, signal acquisition process all adopts PLC technology, and power module is for providing reliable and stable power supply to PLC system, the reliability of safeguards system.In actual applications, because data processing amount is little, general employing small PLC, the small PLC mean free error time, (MTBF, Mean TimeBetween Failures) generally reached more than 40000 ~ 50000 hours, and reliability is high, antijamming capability is strong, and cost is low.
Please continue to refer to Fig. 4, the embodiment of CPU (central processing unit) (4011,4021 and 4033) process flow collection signal is with embodiment one, after 26 flow measurement signals that process is as shown in table 1, obtain 26 corresponding with it volumetric flow units and 26 comparative results, and be forwarded to No. 1 unit host computer 4051 by industrial ethernet switch 404 and No. 2 unit host computers 4052 export.For 10 flow measurement signals that three high-speed counting unit (4012 ~ 4014) of No. 1 unit gather, after process acquisition 10 comparative results through CPU (central processing unit) 4011, also need to send into switch amount output unit 4015 and process acquisition 10 on-off model, and be transmitted to DCS alarm module 407 by auxiliary reclay 406 and export; Same, for 10 flow measurement signals that three high-speed counting unit (4022 ~ 4024) of No. 2 units gather, after process acquisition 10 comparative results through CPU (central processing unit) 4021, also need to send into switch amount output unit 4025 and process acquisition 10 on-off model, and be transmitted to DCS alarm module 407 by auxiliary reclay 406 and export.
That is, by arranging host computer respectively to No. 1 unit and No. 2 units, global semaphore all has output on 1, No. 2 unit host computer, and such 1, No. 2 unit host computer maintenance also can not interact; And host computer fault can't affect the normal operation of slave computer (i.e. PLC system), even if host computer fault, slave computer still can export signal for reporting to the police to DCS alarm module 407.
Please refer to Fig. 5 A, is the scheme of installation of signal acquisition process module in control box of No. 1 or No. 2 unit, and concrete, described control box inner space is separated into 4 layers (according to embody rule needs, the number of plies is indefinite); Wherein, ground floor is used for arranging wire casing, the second layer is for arranging the Switching Power Supply connecting the terminal block of external unit, the miniature circuit breaker of operation circuit break-make and power for control box internal module, third layer is for arranging the signal acquisition process module (comprising: CPU element, three high-speed counting unit, a switch amount output unit and power modules) of No. 1 or No. 2 unit, and the 4th layer for arranging the terminal block of auxiliary reclay and equipment room interconnection.In addition, for host computer, can adopt graphic control panel, reliability is high, take up room little, arrangement convenience, can be directly installed on control box, concrete, please refer to Fig. 5 B, for the front view (FV) of described control box, the external box wall of control box arranges graphic control panel, handled easily person controls and checks the result of signal acquisition process module in control box.
Visible, in the present embodiment, flow sampling display system apparatus structure changes closed chamber into by traditional open frame, decrease the radioactive dose of equipment, improve the reliability of equipment, adopt the chamber of stainless steel, clean decontamination can be convenient to and (be specially, for by alpha-contamination object, remove the radioactivity on its surface); Decrease power supply way and frame quantity simultaneously, save installing space.
Embodiment three
Based on same inventive concept, please refer to Fig. 6, the embodiment of the present invention additionally provides a kind of nuclear power station flow sampling display packing, and described method comprises step:
S1, gather multiple flowmeter export flow measurement signal, described flow measurement signal is processed, obtain volumetric flow units, and described volumetric flow units and preset value are compared, obtain comparative result, and switching value conversion processing is carried out to described comparative result, obtain on-off model;
S2, show described volumetric flow units, and export the first alerting signal based on described comparative result; And/or export the second alerting signal based on described on-off model.
Further, please refer to Fig. 7, described flowmeter is specially turbo flow meter, and described step S1 specifically comprises:
The frequency signal that S11, the multiple turbo flow meters gathering described core sampling system export;
S12, described frequency signal to be processed, obtain described volumetric flow units, and described volumetric flow units and described preset value are compared, obtain described comparative result;
S13, switching value conversion processing is carried out to described comparative result, obtain described on-off model.
Further, described step S12 is specially:
Based on the instrument coefficient that described turbo flow meter is corresponding, described frequency signal is processed, obtain described volumetric flow units, and described volumetric flow units and described preset value are compared, obtain described comparative result.
In specific implementation process, described step S2, is specially:
In the sampling of described nuclear power station, on-the-spot yellow district shows described volumetric flow units, and exports described first alerting signal based on described comparative result; And/or export described second alerting signal at the master-control room of the described nuclear power station of far-end based on described on-off model.
According to description above, above-mentioned nuclear power station flow sampling display packing is applied to above-mentioned nuclear power station flow sampling display system, so the implementation process of the method is consistent with one or more embodiments of said system, has just repeated no longer one by one at this.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disk memory, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the process flow diagram of the method for the embodiment of the present invention, equipment (system) and computer program and/or block scheme.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block scheme and/or square frame and process flow diagram and/or block scheme and/or square frame.These computer program instructions can being provided to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computing machine or other programmable data processing device produce device for realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be loaded in computing machine or other programmable data processing device, make on computing machine or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computing machine or other programmable devices is provided for the step realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (11)
1. a nuclear power station flow sampling display system, it is characterized in that, described system comprises:
Signal acquisition process module, for gathering the flow measurement signal that multiple flowmeter exports, described flow measurement signal is processed, obtain volumetric flow units, and described volumetric flow units and preset value are compared, obtain comparative result, and switching value conversion processing is carried out to described comparative result, obtain on-off model;
First output module, for showing described volumetric flow units, and exports the first alerting signal based on described comparative result;
Second output module, for exporting the second alerting signal based on described on-off model.
2. nuclear power station flow sampling display system as claimed in claim 1, it is characterized in that, described flow counts turbo flow meter, and described signal acquisition process module, comprising:
High-speed counting unit, the frequency signal that the multiple turbo flow meters for gathering described core sampling system export;
CPU (central processing unit), for processing described frequency signal, obtains described volumetric flow units, and described volumetric flow units and described preset value is compared, and obtains described comparative result;
Switch amount output unit, for carrying out switching value conversion processing to described comparative result, obtains described on-off model.
3. nuclear power station flow sampling display system as claimed in claim 2, is characterized in that, be built-in with the instrument coefficient corresponding with described turbo flow meter in described CPU (central processing unit).
4. the nuclear power station flow sampling display system as described in claim as arbitrary in claims 1 to 3, it is characterized in that, described first output module is: the on-the-spot yellow district of sampling being arranged on described nuclear power station, the host computer be connected with described signal acquisition process module.
5. the nuclear power station flow sampling display system as described in claim as arbitrary in claims 1 to 3, it is characterized in that, described second output module is: the master control system alarm module being arranged on the master-control room of the described nuclear power station of far-end.
6. nuclear power station flow sampling display system as claimed in claim 4, is characterized in that, described nuclear power station flow sampling display system, also comprises:
Switch, for being transmitted to described host computer by described volumetric flow units and described comparative result, and through described host computer display and warning.
7. nuclear power station flow sampling display system as claimed in claim 5, is characterized in that, described nuclear power station flow sampling display system, also comprises:
Auxiliary reclay, for described on-off model is transmitted to described master control system, and reports to the police through the alarm module of described master control system.
8. a nuclear power station flow sampling display packing, it is characterized in that, described method comprises step:
The flow measurement signal that S1, the multiple flowmeters gathering the core sampling system of nuclear power station export, described flow measurement signal is processed, obtain volumetric flow units, and described volumetric flow units and preset value are compared, obtain comparative result, and switching value conversion processing is carried out to described comparative result, obtain on-off model;
S2, show described volumetric flow units, and export the first alerting signal based on described comparative result; And/or export the second alerting signal based on described on-off model.
9. nuclear power station flow sampling display packing as claimed in claim 8, it is characterized in that, described flowmeter is specially turbo flow meter, and described step S1 specifically comprises:
The frequency signal that S11, the multiple turbo flow meters gathering described core sampling system export;
S12, described frequency signal to be processed, obtain described volumetric flow units, and described volumetric flow units and described preset value are compared, obtain described comparative result;
S13, switching value conversion processing is carried out to described comparative result, obtain described on-off model.
10. nuclear power station flow sampling display packing as claimed in claim 9, it is characterized in that, described step S12 is specially:
Based on the instrument coefficient that described turbo flow meter is corresponding, described frequency signal is processed, obtain described volumetric flow units, and described volumetric flow units and described preset value are compared, obtain described comparative result.
Nuclear power station flow sampling display packing as described in 11. claims as arbitrary in claim 8 ~ 10, it is characterized in that, described step S2, is specially:
In the sampling of described nuclear power station, on-the-spot yellow district shows described volumetric flow units, and exports described first alerting signal based on described comparative result; And/or export described second alerting signal at the master-control room of the described nuclear power station of far-end based on described on-off model.
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