CN104409119B - A kind of nuclear power station flow sampling display system and method - Google Patents
A kind of nuclear power station flow sampling display system and method Download PDFInfo
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- CN104409119B CN104409119B CN201410668332.7A CN201410668332A CN104409119B CN 104409119 B CN104409119 B CN 104409119B CN 201410668332 A CN201410668332 A CN 201410668332A CN 104409119 B CN104409119 B CN 104409119B
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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 kind of nuclear power station flow sampling display system and method, solve in the prior art nuclear power station flow sampling display device cannot automatically and the technical issues of shown in real time to each road flow measurement signal, the system comprises：Signal acquisition process module, for acquiring the flow measurement signal of multiple flowmeter outputs, flow measurement signal is handled, obtain volumetric flow units, and volumetric flow units and preset value are compared, it obtains comparison result and compared result carries out switching value conversion processing, obtain on-off model；First output module, for exporting volumetric flow units, and output alarm signal based on comparative result；Second output module, for being based on on-off model output alarm signal；It realizes automatic, intuitive and output display and alarm is efficiently carried out to the handling result of each road sample flow signal, operator is made accurately and quickly to know the technique effect of measurement result.
Description
Technical field
The present invention relates to Nuclear Power Station sampling technique field more particularly to a kind of nuclear power station flow sampling display system and sides
Method.
Background technology
Nuclear Power Station sampling system can intensively be sampled the liquids and gases in nuclear power generating sets, and sampling is tied
Fruit carries out chemistry and radioassay；Although the system does not directly take on nuclear safety function, be conducive to nuclear power generating sets accident
Diagnosis and control；Therefore, Nuclear Power Station sampling system is the indispensable component part of nuclear power generating sets.
Wherein, liquid sampling (i.e. nuclear power station flow sample) link of Nuclear Power Station sampling system, including from reactor master
Circuit and containment spray system are collected the fluid sample of high radioactivity and are sampled from steam generator blowdown system, to examine
Look into whether primary Ioops are revealed to secondary circuit.
Traditional Nuclear Power Station sample flow, which samples, to be realized by way of " toggle switch+secondary display table ",
Ji Ge roads flow signal is sent to toggle switch, and toggle switch is connected to frequency translation unit, and signal then is sent to secondary display
Toggle switch if you need to see which flow value, is just switched on the road flow signal by table.Toggle switch and secondary display table
In the rack in nuclear power station Huang area, wherein, toggle switch can only at most realize that six tunnels switch, and two units of nuclear power station are total to
5 such racks are needed, to realize that core samples (REN, Reactor Nuclear sampling) system whole flow signal
Display function on the spot.During whether each road flow signal of monitoring is normal, need specially to arrange operator in nuclear power station
Yellow area controls toggle switch, and checks each road flow signal；Although the nuclear radiation dosage rate in nuclear power station Huang area is not more than 2mSv/h,
But if operator can bring harmful effect in the area stay to body for a long time.
It as it can be seen that in the prior art cannot be automatically and in real time to each road there are Nuclear Power Station sample flow sampling display device
Flow measurement signal carries out the technical issues of display output.
Invention content
For the present invention in the prior art, Nuclear Power Station sample flow sampling display device cannot be automatically and real-time
The technical issues of display output is carried out to each road flow measurement signal provides a kind of nuclear power station flow sampling display system and side
Method realizes automatic, intuitive and efficiently carries out display output to the handling result of each road sample flow signal so that operator
Accurately and quickly know measurement result, and reduce technique effect of the operator in the nuclear radiation area residence time.
On the one hand, an embodiment of the present invention provides a kind of nuclear power station flows to sample display system, including：
Signal acquisition process module, for acquiring the flow measurement signal of multiple flowmeter outputs, to the flow measurement
Signal is handled, and obtains volumetric flow units, and the volumetric flow units are compared with preset value, obtains comparison result,
And switching value conversion processing is carried out to the comparison result, obtain on-off model；
First output module, for showing the volumetric flow units, and result exports the first alarm signal based on the comparison
Number；
Second output module exports the second alarm signal for being based on the on-off model.
Optionally, the flow is calculated as turbine flowmeter, the signal acquisition process module, including：
High-speed counting unit, for acquiring the frequency signal of multiple turbine flowmeters of core sampling system output；
Central processing unit for handling the frequency signal, obtains the volumetric flow units, and by the body
Product flow value is compared with the preset value, obtains the comparison result；
Switch amount output unit for carrying out switching value conversion processing to the comparison result, obtains the switching value letter
Number.
Optionally, instrument coefficient corresponding with the turbine flowmeter is built-in in the central processing unit.
Optionally, first output module is：The sampling scene of the nuclear power station is arranged on, at the signal acquisition
The host computer that reason module is connected.
Optionally, second output module is：It is arranged on the master control system of the master control room of the nuclear power station of distal end
Alarm module.
Optionally, the nuclear power station flow sampling display system, further includes：
Interchanger, for the volumetric flow units and the comparison result to be transmitted to the host computer, and through on described
Position machine shows and alarms.
Optionally, the nuclear power station flow sampling display system, further includes：
Intermediate relay, for the on-off model to be transmitted to the master control system, and through the main control system
The alarm module alarm of system.
On the other hand, the embodiment of the present invention additionally provides a kind of nuclear power station flow sampling display methods, the method includes
Step：
S1, acquire nuclear power station core sampling system multiple flowmeters output flow measurement signal, to the flow survey
Amount signal is handled, and obtains volumetric flow units, and the volumetric flow units are compared with preset value, and knot is compared in acquisition
Fruit and to the comparison result carry out switching value conversion processing, obtain on-off model；
S2, the display volumetric flow units, and result exports the first alarm signal based on the comparison；And/or based on institute
It states on-off model and exports the second alarm signal.
Optionally, the flowmeter is specially turbine flowmeter, and the step S1 is specifically included：
S11, the frequency signal that multiple turbine flowmeters of the core sampling system export is acquired；
S12, the frequency signal is handled, obtains the volumetric flow units, and by the volumetric flow units and institute
It states preset value to be compared, obtains the comparison result；
S13, switching value conversion processing is carried out to the comparison result, obtains the on-off model.
Optionally, the step S12 is specially：
Based on the corresponding instrument coefficient of the turbine flowmeter, the frequency signal is handled, obtains the volume
Flow value, and the volumetric flow units and the preset value are compared, obtain the comparison result.
Optionally, the step S2, specially：
The volumetric flow units, and result output institute based on the comparison are shown in the yellow area in sampling scene of the nuclear power station
State the first alarm signal；And/or the master control room of the nuclear power station in distal end is based on the on-off model and exports described second
Alarm signal.
One or more technical solution provided in an embodiment of the present invention, has at least the following technical effects or advantages：
Since in embodiments of the present invention, the flow in Nuclear Power Station sampling system samples display system, including：Signal is adopted
Collect processing module and two output modules (i.e. first, second output module)；Wherein, the signal acquisition process module is used to adopt
Collect the flow measurement signal of multiple flowmeters output of the core sampling system of nuclear power station, at the flow measurement signal
Reason obtains volumetric flow units, and the volumetric flow units is compared with preset value, obtains comparison result and to described
Comparison result carries out switching value conversion processing, obtains on-off model；First output module, for exporting the volume flow
Magnitude, and result exports the first alarm signal based on the comparison；Second output module, for being based on the switching value letter
Number output the second alarm signal.That is, by by ripe programmable logic controller (PLC) (PLC, Programmable
Logic Controller) technology be applied to nuclear power station flow sampling display system in, specifically, signal acquisition process module base
Flow measurement signal acquisition and data-signal processing are carried out in PLC technology, obtains handling result, first, second output module pair
Handling result is exported, efficiently solve in the prior art Nuclear Power Station sample flow sampling display device cannot automatically and
The technical issues of carrying out display output to each road flow measurement signal in real time realizes automatic, intuitive and efficiently each road is taken
The handling result of sample flow signal carries out display output so that operator accurately and quickly knows measurement result, and reduces behaviour
Work person is in the technique effect of nuclear radiation area residence time.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 samples display system architectures block diagram for the first nuclear power station flow provided in an embodiment of the present invention；
Fig. 2 samples display system architectures block diagram for second of nuclear power station flow provided in an embodiment of the present invention；
Fig. 3 samples display system architectures block diagram for the third nuclear power station flow provided in an embodiment of the present invention；
Fig. 4 samples display system configuration structure for 1, No. 2 unit flow of nuclear power station provided in an embodiment of the present invention；
Fig. 5 A- Fig. 5 B are the control cabinet structural representation provided in an embodiment of the present invention for being equipped with signal acquisition process module
Figure；
Fig. 6 samples display methods flow chart for the first nuclear power station flow provided in an embodiment of the present invention；
Fig. 7 samples display methods flow chart for second of nuclear power station flow provided in an embodiment of the present invention.
Specific embodiment
The embodiment of the present invention samples display system by providing a kind of nuclear power station flow, solves in the prior art
Nuclear Power Station sample flow sampling display device cannot automatically and in real time carry out each road flow measurement signal the skill of display output
Art problem realizes automatic, intuitive and efficiently carries out display output to the handling result of each road sample flow signal so that behaviour
Work person accurately and quickly knows measurement result, and reduces technique effect of the operator in the nuclear radiation area residence time.
The technical solution of the embodiment of the present invention is in order to solve the above technical problems, general thought is as follows：
An embodiment of the present invention provides a kind of nuclear power station flows to sample display system, including：Signal acquisition process module is used
In the flow measurement signal for acquiring multiple flowmeter outputs, the flow measurement signal is handled, obtains volumetric flow units,
And the volumetric flow units with preset value are compared, obtain comparison result and switching value is carried out to the comparison result
Conversion processing obtains on-off model；First output module for showing the volumetric flow units, and is tied based on the comparison
Fruit exports the first alarm signal；Second output module exports the second alarm signal for being based on the on-off model.
As it can be seen that in embodiments of the present invention, display system is sampled by the way that ripe PLC technology is applied to nuclear power station flow
In, specifically, signal acquisition process module, which is based on PLC technology, carries out flow measurement signal acquisition and data-signal processing, obtain
Handling result, first, second output module export handling result, efficiently solve Nuclear Power Station in the prior art and take
Sample flow sampling display device automatically and in real time cannot carry out each road flow measurement signal the technical issues of display output, realize
It is automatic, intuitive and efficiently display output is carried out to the handling result of each road sample flow signal so that operator it is accurate and
Rapidly know measurement result, and reduce technique effect of the operator in the nuclear radiation area residence time.
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
It states technical solution to be described in detail, it should be understood that the specific features in the embodiment of the present invention and embodiment are to the application
The detailed description of technical solution rather than the restriction to technical scheme, in the absence of conflict, the present invention are implemented
Technical characteristic in example and embodiment can be combined with each other.
Embodiment one
It please refers to Fig.1, an embodiment of the present invention provides a kind of nuclear power station flows to sample display system, the system comprises：
Signal acquisition process module 10 for acquiring the flow measurement signal of multiple flowmeter outputs, is surveyed the flow
Amount signal is handled, and obtains volumetric flow units, and the volumetric flow units are compared with preset value, and knot is compared in acquisition
Fruit and to the comparison result carry out switching value conversion processing, obtain on-off model；Wherein, the multiple flowmeter tool
Body is arranged in the core sampling system of nuclear power station；
First output module 20, for showing the volumetric flow units, and the first alarm of result output based on the comparison
Signal；
Second output module 30 exports the second alarm signal for being based on the on-off model.
In specific implementation process, in order to collect the liquid of high radioactivity from reactor main circuit and containment spray system
Sample and from steam generator blowdown system sample, come check primary Ioops whether to secondary circuit reveal, it will usually in reactor
Multiple flowmeter (such as turbines are installed in the sampling line of major loop, containment spray system and steam generator blowdown system
Flowmeter, differential pressure flowmeter etc.), for flowmeter according to its principle and the difference of characteristic, the flow signal for measuring acquisition is (i.e. described
Flow measurement signal) the form of expression it is also different, as turbine flowmeter output signal for pulse, differential pressure flowmeter generate and stream
(flow velocity) proportional pressure differential is measured, so needing to handle the flow measurement signal that flowmeter exports, is obtained more intuitive
Volumetric flow units；Further, it is whether qualified and unqualified determining that it is in order to determining obtained volumetric flow units
When being capable of output alarm signal, it is also necessary to the volumetric flow units and the preset value (i.e. standard value) are compared, are obtained
Comparison result, so that the first output module 20, while display exports the volume flow, result exports based on the comparison
Alarm signal；In addition, being further processed to the comparison result, that is, switching value conversion processing is carried out, obtains on-off model,
So that the second output module 30 is based on the on-off model output alarm signal.First output module 20 and the second output module
30, which can carry out display output, audio output or feeding next stage processing module, is further processed.Specifically, according to difference
Use demand, can be set in the comparison result show the volumetric flow units be more than the preset value or the volume flow
When value is less than the preset value, the first output module 20 result output alarm signal based on the comparison；It is relatively tied to described
When fruit carries out switching value conversion processing, it can set when comparison result shows that the volumetric flow units are more than the preset value, obtain
It is " 1 " to obtain on-off model, and the second output module 30 is after on-off model of the reading value for " 1 ", output alarm signal；When
So, it is one kind in many situations more than, the rest may be inferred for other situations, no longer repeats one by one here.
Specifically, signal acquisition process module 10 uses PLC technology, i.e., using a kind of programmable controller, controlling
Device internally stored program performs the user oriented instructions such as logical operation, sequential control, timing, counting and arithmetical operation, realizes
Automation real-time and efficiently completes flow signal acquisition, handles and exports.
Since turbine flowmeter has many advantages, such as high precision, reproducible, inferred-zero drift, high range ratio, and it is exported
Signal is pulse (i.e. frequency signal), is easy to digitize, and in the present embodiment, the flowmeter specifically uses turbine flowmeter,
Further, it please refers to Fig.2, signal acquisition process module 10 specifically includes：
High-speed counting unit 101, for acquiring the frequency signal of multiple turbine flowmeters of core sampling system output；
Specifically, the frequency signal, measurement accuracy higher are directly acquired by high-speed counting unit 101；
Central processing unit (such as CPU) 102 for handling the frequency signal, obtains the volumetric flow units,
And be compared the volumetric flow units and the preset value, obtain the comparison result；
Switch amount output unit 103 for carrying out switching value conversion processing to the comparison result, obtains the switching value
Signal.
Further, in order to calculating the high volumetric flow units of accuracy, centre based on the flow measurement signal
Instrument coefficient corresponding with the turbine flowmeter is built-in in reason unit 102；Wherein, instrument coefficient be a constant, numerical value
It is obtained for actual test.Specifically, when being programmed to central processing unit 102, by the instrument check list of turbine flowmeter
On instrument coefficient (kf) be built in central processing unit 102.The volume flow of turbine flowmeter and the rotation angle speed of turbine
Spend directly proportional, and its angular velocity of rotation is shown with the pulse signal of output, therefore the volume flow of turbine flowmeter with it is defeated
The pulse signal frequency (f) gone out is directly proportional, and relational expression is：qv=f/kf, in formula：qvFor volume flow.
In specific implementation process, the first output module 20 is：The yellow area in sampling scene of the nuclear power station is arranged on, with letter
The connected host computer of number acquisition processing module 10；Second output module 30 is：It is arranged on the master control room of the nuclear power station of distal end
Master control system alarm module, i.e. DCS (Distributed Control System) alarm module.Wherein, it is described upper
Machine uses industrial touch screen, can be used in carrying out display output to the volume flow and first alarm signal；In addition,
The touch screen person of being conveniently operated is operated, and is conducive to improve the efficiency of human-computer interaction.As it can be seen that in the present embodiment, nuclear power station stream
Measuring the handling result of sample display system can be shown in two regions simultaneously, especially when measuring acquisition problem data,
Not only can be in the nuclear power station Huang area (Yellow Zone) of close circuit system, but also can be carried out in the master control room for being slightly away from circuit system
Warning output, so as to ensure that operator can quickly know that primary Ioops are revealed to secondary circuit, to be adjusted in time to unit
Whole control.
In specific implementation process, in order to which the volumetric flow units obtained and the comparison result are sent to institute
Host computer is stated, is please referred to Fig.3, the nuclear power station flow samples display system, further includes：Interchanger 40, for by the volume
Flow value and the comparison result are transmitted to the host computer 20, and show and alarm through host computer 20；Wherein, interchanger 40 can
To use industrial ethernet switch.Signal acquisition process module 10 be slave computer PLC, generation volumetric flow units and compare
It carries out display as a result, sending host computer to by industrial ethernet switch and alarms on the spot.
It is in addition, defeated in order to alarm the on-off model obtained the feeding master control system (DCS)
Go out, referring still to Fig. 3, the nuclear power station flow samples display system, further includes：Intermediate relay 50, for by the switch
Amount signal is transmitted to the master control system, and the alarm module 30 through the master control system is alarmed (i.e. DCS alarm modules).
Although specifically, for generating the switch amount output unit 103 of the on-off model with certain driving force, Neng Gouzhi
DCS alarm modules are accessed, but in order to improve the isolation of reliability and equipment room, switch amount output unit 103 can be exported
Signal be sent to intermediate relay 50.
To sum up, in the embodiment of the present application, nuclear power station flow sampling display system employs industrial application very
Ripe PLC and touch screen technology, equipment dependability is high, realizes the real-time display function of core sampling system flow measurement；Subtract
Staff's operation element amount and the residence time in nuclear power station Huang area are lacked, have reduced personnel's radioactive dose, improve personnel
Occupational health is horizontal.
Embodiment two
The characteristics of being arranged according to the domestic general double heaps of nuclear power generating sets, needs to set two for two nuclear reactors in nuclear power plant
A unit, i.e. No. 1 unit and No. 2 units；It in the present embodiment, will be for the core sampling system of the 1 of nuclear power station, No. 2 unit
Liquid sampling principle is specifically introduced：
The sample of flow sampling is extracted from following each system：Reactor coolant loop, is put at radioactive liquid processing system
Penetrating property gas handling system, steam generator secondary side and steam generator blowdown system and other auxiliary systems.In this reality
It applies in example, flow measurement is carried out using turbine flowmeter, which is not required to external power supply and powers, output frequency signal,
Two units totally 26 turbine flowmeters, wherein, 20 turbine flowmeters are for measuring each 10 flows letter of 1, No. 2 unit
Number, remaining 6 turbine flowmeter for measure two units 6 common signals, as shown in table 1, be 1, No. 2 unit signal and
The function statistical form of the common signal of two units：
Table 1
| Serial number | Unit | Flow position number | Function |
| 1 | 1 | Flow 1 | Sample flow after voltage-stablizer 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-stablizer liquid phase high temperature sampling cooler |
| 5 | 1 | Flow 5 | Change and hold control system downstream sample flow |
| 6 | 1 | Flow 6 | Change and hold control system 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 | It is public | Flow 11 | Boron recovery system cation bed desalination device 1 exports sample flow |
| 12 | It is public | Flow 12 | Boron recovery system cation bed desalination device 2 exports sample flow |
| 13 | It is public | Flow 13 | Boron recovery system desalination prefilter 1 exports sample flow |
| 14 | It is public | Flow 14 | Boron recovery system desalination prefilter 2 exports sample flow |
| 15 | It is public | Flow 15 | Boron recovery system resin is detained filter 1 and exports sample flow |
| 16 | It is public | Flow 16 | Boron recovery system resin is detained filter 2 and exports sample flow |
| 17 | 2 | Flow 17 | Sample flow after voltage-stablizer 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-stablizer liquid phase high temperature sampling cooler |
| 21 | 2 | Flow 21 | Change and hold control system downstream sample flow |
| 22 | 2 | Flow 22 | Change and hold control system 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, it please refers to Fig.4, the global semaphore of 1, No. 2 unit and two units is separated, and to overhaul when will not be mutual
Mutually influence.In Fig. 4, for 1, No. 2 unit setting, there are two signal acquisition process modules (401 and 402) respectively；In practical work
During work, signal acquisition process module (401 and 402) is powered respectively by a power module；Signal acquisition process module 401
Including 4011, three high-speed counting units (4012~4014) of a central processing unit and a switch amount output unit
4015, likewise, signal acquisition process module 402 includes 4021, three high-speed counting units (4022 of a central processing unit
~4024) and a switch amount output unit 4025；In order to 20 flow signals of Quick Acquisition (in such as table 1, serial number 1~
10 and 17~26 flow signal), there are three high-speed counting lists for setting in signal acquisition process module (401 and 402) respectively
Member；For six public flow signals of serial number 11~16 in table 1, there are two high-speed counting units (4031,4032) for setting
Signal sampling and processing is carried out with a central processing unit 4033, likewise, high-speed counting unit (4031,4032) and center
Processing unit 4033 passes through a power module powered operation；Wherein, for 1, No. 2 unit flow signal of acquisition and two units
Depending on the number of the high-speed counting unit of global semaphore can be according to particular condition in use, it is not specifically limited here.
In the present embodiment, for signal acquisition process using PLC technology, power module is steady for being provided to PLC system
Fixed reliable power supply, the reliability of safeguards system.In practical applications, since data processing amount is little, generally using small PLC
, the small PLC mean free error time (MTBF, Mean Time Between Failures) commonly reaches 40000~
50000 hours or more, reliability was high, strong antijamming capability, low cost.
Please continue to refer to Fig. 4, central processing unit (4011,4021 and 4033) handles the embodiment of flow collection signal
As in the first embodiment, after 26 flow measurement signals as shown in Table 1 are handled, obtain corresponding 26 volumetric flow units and
26 comparison results, and pass through industrial ethernet switch 404 and be forwarded to No. 1 unit host computer 4051 and No. 2 unit host computers
4052 are exported.For No. 1 unit three high-speed counting units (4012~4014) acquire 10 flow measurement signals,
After 10 comparison results are obtained by the processing of central processing unit 4011, feeding switch amount output unit 4015 is also needed to handle
10 on-off models are obtained, and passes through intermediate relay 406 and is transmitted to DCS alarm modules 407 and exported；It is likewise, right
In 10 flow measurement signals that three high-speed counting units (4022~4024) of No. 2 units acquire, by central processing
After the processing of unit 4021 obtains 10 comparison results, also need to be sent into processing 10 switching values of acquisition of switch amount output unit 4025
Signal, and pass through intermediate relay 406 and be transmitted to DCS alarm modules 407 and exported.
That is, by setting host computer respectively to No. 1 unit and No. 2 units, global semaphore is upper in 1, No. 2 unit
There is output on machine, such 1, No. 2 upper machine overhauling of unit will not interact；And host computer failure can't under the influence of
The normal operation of position machine (i.e. PLC system), even if host computer failure, slave computer still can be exported to DCS alarm modules 407 and is used for
The signal of alarm.
Fig. 5 A are please referred to, is scheme of installation of the signal acquisition process module of No. 1 or No. 2 unit in control cabinet, has
Body, the control cabinet inner space is separated into 4 layers (according to concrete application needs, the number of plies is indefinite)；Wherein, first layer is used for
Wire casing is set, and the second layer is for setting the miniature circuit breaker of the connection terminal block of external equipment, control circuit break-make and in order to control
Case internal module power supply Switching Power Supply, third layer for set No. 1 or No. 2 unit signal acquisition process module (including：
CPU element, three high-speed counting units, a switch amount output unit and power module), the 4th layer is used to set intermediate relay
The terminal block that device and equipment room are mutually used in conjunction.In addition, for host computer, graphic control panel can be used, reliability is high, occupied space
Small, arrangement is convenient, can be directly mounted on control cabinet, specifically, please referring to Fig. 5 B, is the front elevation of the control cabinet, is controlling
Graphic control panel, the person's of being conveniently operated control and the place for checking signal acquisition process module in control cabinet are set on the external box wall of case processed
Manage result.
As it can be seen that in the present embodiment, flow sampling display system apparatus structure is changed to seal by traditional open rack
The chamber closed reduces the radioactive dose of equipment, improves the reliability of equipment, using the chamber of stainless steel, can be convenient for
Clean decontamination (specifically, for the object by radioactive pollution, removing the radioactivity on its surface)；Reduce power supply way simultaneously
With rack quantity, installation space is saved.
Embodiment three
Based on same inventive concept, Fig. 6 is please referred to, the embodiment of the present invention additionally provides a kind of nuclear power station flow sampling display
Method, the method includes the steps：
S1, the flow measurement signal of the multiple flowmeter outputs of acquisition, handle the flow measurement signal, obtain body
Product flow value, and the volumetric flow units is compared with preset value, acquisition comparison result and to the comparison result into
Row switching value conversion processing obtains on-off model；
S2, the display volumetric flow units, and result exports the first alarm signal based on the comparison；And/or based on institute
It states on-off model and exports the second alarm signal.
Further, Fig. 7 is please referred to, the flowmeter is specially turbine flowmeter, and the step S1 is specifically included：
S11, the frequency signal that multiple turbine flowmeters of the core sampling system export is acquired；
S12, the frequency signal is handled, obtains the volumetric flow units, and by the volumetric flow units and institute
It states preset value to be compared, obtains the comparison result；
S13, switching value conversion processing is carried out to the comparison result, obtains the on-off model.
Further, the step S12 is specially：
Based on the corresponding instrument coefficient of the turbine flowmeter, the frequency signal is handled, obtains the volume
Flow value, and the volumetric flow units and the preset value are compared, obtain the comparison result.
In specific implementation process, the step S2, specially：
The volumetric flow units, and result output institute based on the comparison are shown in the yellow area in sampling scene of the nuclear power station
State the first alarm signal；And/or the master control room of the nuclear power station in distal end is based on the on-off model and exports described second
Alarm signal.
As described above, above-mentioned nuclear power station flow sampling display methods is applied to the sampling display of above-mentioned nuclear power station flow
System, so, the implementation process of this method is consistent with one or more embodiments of above system, just no longer repeats one by one herein
.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware can be used in the present invention
Apply the form of example.Moreover, the computer for wherein including computer usable program code in one or more can be used in the present invention
The computer program production that usable storage medium is implemented on (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
The processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices is generated for real
The device of function specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction generation being stored in the computer-readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps are performed on calculation machine or other programmable devices to generate computer implemented processing, so as in computer or
The instruction offer performed on other programmable devices is used to implement in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make these embodiments other change and modification.So appended claims be intended to be construed to include it is excellent
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (11)
1. a kind of nuclear power station flow samples display system, which is characterized in that the system comprises：
Signal acquisition process module, for acquiring the flow measurement signal of multiple flowmeter outputs, to the flow measurement signal
Handled, obtain volumetric flow units, and the volumetric flow units are compared with preset value, acquisition comparison result and
Switching value conversion processing is carried out to the comparison result, obtains on-off model；The flow measurement of the multiple flowmeter output
Signal includes the pulse signal of turbine flowmeter output and the differential pressure signal proportional to flow of differential pressure flowmeter output；
First output module, for showing the volumetric flow units, and result exports the first alarm signal based on the comparison；
Second output module exports the second alarm signal for being based on the on-off model；
The system also includes：
Intermediate relay, for the on-off model to be transmitted to second output module.
2. nuclear power station flow as described in claim 1 samples display system, which is characterized in that the flow is calculated as turbine flow
Meter, the signal acquisition process module, including：
High-speed counting unit, for acquiring the frequency signal of multiple turbine flowmeters of core sampling system output；
Central processing unit for handling the frequency signal, obtains the volumetric flow units, and by the volume flow
Magnitude is compared with the preset value, obtains the comparison result；
Switch amount output unit for carrying out switching value conversion processing to the comparison result, obtains the on-off model.
3. nuclear power station flow as claimed in claim 2 samples display system, which is characterized in that in the central processing unit
It is equipped with instrument coefficient corresponding with the turbine flowmeter.
4. the nuclear power station flow sampling display system as described in any claim of claims 1 to 3, which is characterized in that described first
Output module is：It is arranged on the yellow area in sampling scene of the nuclear power station, the host computer being connected with the signal acquisition process module.
5. the nuclear power station flow sampling display system as described in any claim of claims 1 to 3, which is characterized in that described second
Output module is：It is arranged on the master control system alarm module of the master control room of the nuclear power station of distal end.
6. nuclear power station flow as claimed in claim 4 samples display system, which is characterized in that the nuclear power station flow sampling is aobvious
Show system, further include：
Interchanger, for the volumetric flow units and the comparison result to be transmitted to the host computer, and through the host computer
Display and alarm.
7. nuclear power station flow as claimed in claim 5 samples display system, which is characterized in that
The intermediate relay is specifically used for the on-off model being transmitted to the master control system, and through the main control
The alarm module alarm of system.
8. a kind of nuclear power station flow samples display methods, which is characterized in that the method includes the steps：
S1, acquire nuclear power station core sampling system multiple flowmeters output flow measurement signal, to the flow measurement believe
It number is handled, obtains volumetric flow units, and the volumetric flow units are compared with preset value, acquisition comparison result, with
And switching value conversion processing is carried out to the comparison result, obtain on-off model；The flow of the multiple flowmeter output is surveyed
It measures signal and includes the pulse signal of turbine flowmeter output and the pressure differential letter proportional to flow of differential pressure flowmeter output
Number；
S2, the display volumetric flow units, and result exports the first alarm signal based on the comparison；And/or based in
Between relay forward the on-off model export the second alarm signal.
9. nuclear power station flow as claimed in claim 8 samples display methods, which is characterized in that the flowmeter is specially turbine
Flowmeter, the step S1 are specifically included：
S11, the frequency signal that multiple turbine flowmeters of the core sampling system export is acquired；
S12, the frequency signal is handled, obtains the volumetric flow units, and by the volumetric flow units with it is described pre-
If value is compared, the comparison result is obtained；
S13, switching value conversion processing is carried out to the comparison result, obtains the on-off model.
10. nuclear power station flow as claimed in claim 9 samples display methods, which is characterized in that the step S12 is specially：
Based on the corresponding instrument coefficient of the turbine flowmeter, the frequency signal is handled, obtains the volume flow
Value, and the volumetric flow units and the preset value are compared, obtain the comparison result.
11. the nuclear power station flow sampling display methods as described in any claim of claim 8~10, which is characterized in that the step
Rapid S2, specially：
Show the volumetric flow units in the yellow area in sampling scene of the nuclear power station, and result exports described the based on the comparison
One alarm signal；And/or the master control room of the nuclear power station in distal end is based on on-off model output second alarm
Signal.
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| CN104801096B (en) * | 2015-04-13 | 2016-06-29 | 西安西热水务环保有限公司 | Intelligent pre-filter online monitoring and diagnosing device and method |
| CN107559596B (en) * | 2017-10-18 | 2023-08-08 | 常州港华燃气有限公司 | Pipeline gas flow velocity detection device and gas pipeline overhauling system |
| CN108955796B (en) * | 2018-07-11 | 2020-01-14 | 西安交通大学 | Sub-channel flow sampling device and method |
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