CN106205752B - Major loop device temperature monitors system and method between NSSS cold conditions function test - Google Patents
Major loop device temperature monitors system and method between NSSS cold conditions function test Download PDFInfo
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- CN106205752B CN106205752B CN201610601319.9A CN201610601319A CN106205752B CN 106205752 B CN106205752 B CN 106205752B CN 201610601319 A CN201610601319 A CN 201610601319A CN 106205752 B CN106205752 B CN 106205752B
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/02—Devices or arrangements for monitoring coolant or moderator
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/02—Devices or arrangements for monitoring coolant or moderator
- G21C17/022—Devices or arrangements for monitoring coolant or moderator for monitoring liquid coolants or moderators
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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
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- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
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Abstract
Major loop device temperature monitors system and method between the present invention provides NSSS cold conditions function test, belongs to nuclear safety technical field, which includes: interim thermal resistance, the outer surface of major loop equipment is set to, for acquiring the temporary temperature signal of major loop equipment；Collective and distributive type control system, including thermal resistance terminal module and thermal resistance input module, the thermal resistance terminal module connects the interim thermal resistance, for receiving and transferring the temporary temperature signal, the thermal resistance input module connects the thermal resistance terminal module, obtains temporary temperature data for receiving and handling the temporary temperature signal.The present invention passes through interim thermal resistance collection temporary temperature signal; transmission is carried out to temporary temperature signal using the transmission channel of collective and distributive type control system and processing obtains temperature data; the critical path time of signal processing can be saved; lifting test accuracy rate; the effectively temperature of monitoring major loop equipment, protects the safety of main equipment and the safety of field test personnel.
Description
Technical field
The present invention relates to nuclear safety technical fields, more specifically to major loop between a kind of NSSS cold conditions function test
Device temperature monitors system and method.
Background technique
" temperature and pressure " range provides during NSSS cold conditions function test: (1) pressure rising and stabilization sub stage, it is ensured that RCP
Abundant circulation, including voltage-stablizer, in order to make, metal is consistent with the temperature of fluid in major loop and avoids depositing for supercooling region
?；(2) rapid increase of temperature is avoided, it is therefore an objective to not generate too big thermal stress to equipment；(3) for the ease of running and test
Platform operation, prevents pressure vessel during the water pressure test to be in the risk in Transition of Brittleness area, in 25bar~228bar pressure platform
Between, major loop temperature must be at 35 DEG C or more；(4) it is protection staff, avoids accidental scalding risk, cold conditions function test
Temperature must be controlled at 70 DEG C or less；So needing to RCP major loop equipment (pressure vessel, voltage-stablizer, steam generator etc. 7
Place) temperature carries out real-time monitoring, and temperature monitoring point is distributed in pressure container flange, pressure vessel head flange, pressure vessel bottom
Portion's end socket, voltage-stablizer bottom head and each bundle of steam generator coaming plate bottom.
The temperature monitoring system of main equipment is as shown in Figure 1 during existing NSSS cold conditions function test.Temperature monitoring point minute
It is distributed in pressure container flange, pressure vessel head flange, pressure vessel bottom end socket, voltage-stablizer bottom head and each steam hair
At raw device bundle wrapper bottom etc. 7,7 temperature monitoring points are distributed widely in each room of reactor building, pass through hardwire
It is handled 1 signal recorder analyser is imported after the temperature signal collection of 7 specific positions, it is therefore desirable to 7 24V perseverances
Stream source provides electric current for 7 interim thermal resistances, and a signal analysis recorder is at least needed to complete conversion, filter to temperature signal
Functions, the processes such as wave, A/D conversion and monitoring display need a large amount of hardwire (not shown in figure 1)s.
Signal analysis recorder and 24V constant-current source are at high cost, and NSSS cold conditions function test stage work on the spot environment is very
Complexity be easy to cause live hardwire to be surprisingly broken or loosen and cause the loss or exception of temperature monitoring signal；In addition, test
As a result it is influenced by the accuracy of the stability of 24V constant-current source and signal analysis recorder, reliability is poor.
Summary of the invention
The present invention for the prior art NSSS cold conditions function test during main equipment temperature monitoring system existing for it is big
Amount is using signal analysis recorder device, multiple 24V constant-current supplies, a large amount of hardwires, experimental result by 24V constant current source stability shadow
The problems such as ringing proposes major loop device temperature monitoring system and method between a kind of NSSS cold conditions function test, and can be avoided makes
With signal recorder analyser and multiple 24V constant-current supplies, save the cost, while avoiding in complicated site environment a large amount of hard
Critical path time, lifting test accuracy rate are saved in wiring.
For this purpose, the present invention proposes following technical scheme:
On the one hand, major loop device temperature monitors system between providing NSSS cold conditions function test, comprising:
Interim thermal resistance is set to the outer surface of major loop equipment, for acquiring the temporary temperature signal of major loop equipment；
Collective and distributive type control system, including thermal resistance terminal module and thermal resistance input module, the thermal resistance terminal module
The interim thermal resistance is connected, for receiving and transferring the temporary temperature signal, described in the thermal resistance input module connection
Thermal resistance terminal module obtains temporary temperature data for receiving and handling the temporary temperature signal.
The above-mentioned temperature monitoring system of the present invention, further includes:
Master controller connects the thermal resistance input module, for receiving and transferring the temporary temperature data；
KIC terminal is connect, for receiving and showing that the thermal resistance is defeated with the master controller by Profibus bus
Enter the temporary temperature data of module transmission.
In the above-mentioned temperature monitoring system of the present invention, the interim thermal resistance is four-wire system thermal resistance, the thermal resistance end
Submodule is four-wire system thermal resistance terminal module, and thermal resistance input module is four-wire system thermal resistance input module；
The temperature monitoring system further include:
Pre-fabricated electric cables are connect with the four-wire system thermal resistance terminal module；
Machine cage backplane bus, connect with the pre-fabricated electric cables；
64 needle DIN connectors are connect with the machine cage backplane bus and four-wire system thermal resistance input module；
The temporary temperature signal of the four-wire system thermal resistance collection by four-wire system thermal resistance terminal module, pre-fabricated electric cables,
Machine cage backplane bus and 64 needle DIN connectors are transmitted to four-wire system thermal resistance input module.
In the above-mentioned temperature monitoring system of the present invention, the thermal resistance input module includes:
Overvoltage crowbar connects 64 needle DIN connectors, for playing overvoltage protection to thermal resistance input module；
Signal conversion circuit connects 64 needle DIN connectors, for temporary temperature signal to be converted to analog voltage signal；
Filtering signal conditioning circuit connects the signal conversion circuit, for being filtered to the analog voltage signal
Conditioning；
Converter connects the filtering signal conditioning circuit, for analog voltage signal to be converted to digital voltage letter
Number, the data for acquiring digital voltage signal are transmitted to microcontroller；
Microcontroller connects the converter, carries out data processing for the data to the digital voltage signal, obtains
To temporary temperature data.
In the above-mentioned temperature monitoring system of the present invention, the collective and distributive type control system further include:
Power supply device is connected with DC/DC converter is isolated, for giving the collective and distributive type control system to power；
DC/DC converter is isolated, is connect with power supply device, the 24V voltage for exporting power supply device is converted to 5V electricity
Pressure.
On the other hand, major loop device temperature monitoring method between NSSS cold conditions function test is provided, comprising:
Acquire the temporary temperature signal of major loop equipment；
Receive the temporary temperature signal；
It handles the temporary temperature signal and obtains temporary temperature data.
In the above-mentioned method of the present invention, the step of processing temporary temperature signal obtains temporary temperature data it
Afterwards, further comprising the steps of:
Receive the temporary temperature data；
Show the temporary temperature data.
In the above-mentioned method of the present invention, the step of reception temporary temperature signal includes: by thermal resistance terminal
Module, pre-fabricated electric cables, machine cage backplane bus and 64 needle DIN connectors receive the temporary temperature signal.
In the above-mentioned method of the present invention, handling the step of temporary temperature signal obtains temporary temperature data includes:
The temporary temperature signal is converted into analog voltage signal；
Conditioning is filtered to the analog voltage signal；
Analog voltage signal is converted into digital voltage signal, acquires the data of digital voltage signal；
Data processing is carried out to the data of the digital voltage signal, obtains temporary temperature data.
Technical solution provided by the invention has the benefit that
By interim thermal resistance collection temporary temperature signal, using the transmission process channel of collective and distributive type control system to interim
Temperature signal carries out transmission and processing obtains temperature data, the temperature monitoring system can be avoided using signal recorder analyser and
Multiple 24V constant-current sources, save the cost；It avoids showing using while signal recorder analyser and multiple 24V constant-current sources in complicated
A large amount of hardwires are avoided in the environment of field, save critical path time, lifting test accuracy rate；Test result is not by 24V constant current
The influence of the accuracy of the stability and signal analysis recorder in source；It is complete by the transmission process channel of collective and distributive type control system
Effective monitoring of pairs of major loop device temperature, protects the safety of main equipment and the safety of field test personnel.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 be the prior art NSSS cold conditions function test between major loop device temperature monitoring system structural schematic diagram.
Fig. 2 is the knot of major loop device temperature monitoring system between the NSSS cold conditions function test that the embodiment of the present invention one provides
Structure block diagram.
Fig. 3 be the embodiment of the present invention one provide NSSS cold conditions function test between major loop device temperature monitoring system one
The structural block diagram of kind preferred embodiment.
Fig. 4 is the knot of major loop device temperature monitoring system between the NSSS cold conditions function test that the embodiment of the present invention one provides
Structure schematic diagram.
Fig. 5 is the structural schematic diagram for the thermal resistance terminal module that the embodiment of the present invention one provides.
Fig. 6 is the circuit diagram that the thermal resistance terminal module that the embodiment of the present invention one provides is connect with thermal resistance input module.
Fig. 7 is the side of major loop device temperature monitoring method between NSSS cold conditions function test provided by Embodiment 2 of the present invention
Method flow chart.
Fig. 8 is one of major loop device temperature monitoring method between NSSS cold conditions function test provided by Embodiment 2 of the present invention
The method flow diagram of kind preferred embodiment.
Specific embodiment
It is existing in the prior art using signal analysis recorder device, multiple 24V constant-current supplies and a large amount of in order to solve
The problem of at high cost caused by hardwire, experimental result poor reliability, the present invention is intended to provide a kind of NSSS cold conditions function test
Between major loop device temperature monitor system and method, core concept is: pass through interim thermal resistance 100 acquire temporary temperature letter
Number, transmission is carried out to temporary temperature signal using the transmission process channel of collective and distributive type control system 200 and processing obtains temperature number
According to.
In reactor building, formal resistance and temperature instrument is equipped in pressure vessel, voltage-stablizer and evaporator isoperimetric cloth
Table, the temperature of each equipment when acquiring nuclear steam supply system production run, but in the NSSS (Nuclear of nuclear power unit
Steam Supply System, nuclear steam supply system) these formal thermal resistance temperature instruments are not required to during cold conditions function test
It comes into operation, therefore, during NSSS production run or during test, at the transmission that can use collective and distributive type control system 200
It manages channel and carries out temperature monitoring, during NSSS cold conditions function test, be by formal thermal resistance temperature instrument and collective and distributive type control
System 200 disconnects, and connecting interim thermal resistance 100 to collective and distributive type control system 200 can be realized temperature monitoring to major loop equipment.
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment one
The embodiment of the present invention provides major loop device temperature monitoring system between a kind of NSSS cold conditions function test.
As shown in Fig. 2, the system includes:
Interim thermal resistance 100, is set to the outer surface of major loop equipment, and the temporary temperature for acquiring major loop equipment is believed
Number.
Collective and distributive type control system 200, including thermal resistance terminal module and thermal resistance input module, the thermal resistance Terminals Die
Block connects the interim thermal resistance 100, for receiving and transferring the temporary temperature signal, the thermal resistance input module connection
The thermal resistance terminal module obtains temporary temperature data for receiving and handling the temporary temperature signal.
Specifically, the interim thermal resistance 100 is four-wire system thermal resistance, it is four-wire system Pt100 thermal resistance further；
The thermal resistance terminal module is four-wire system thermal resistance terminal module；The thermal resistance input module is the input of four-wire system thermal resistance
Module.
Because major loop device temperature requires≤70 DEG C during NSSS cold conditions function test, and it is relatively high to required precision, and
And be the mean temperature of certain space to be measured, therefore select four-wire system thermal resistance.Four-wire system connection electric power distribution is uniform, will not lead
The electric current of deflection phase, zero curve is almost nil, and original part fever uniformly, is completely eliminated the Resistance Influence of lead, is mainly used for high-precision
The temperature detection of degree.Therefore select acquisition of the four-wire system Pt100/Cu50 thermal resistance to major loop equipment progress temperature signal.
During test, in pressure container flange, pressure vessel head flange, pressure vessel bottom end socket, voltage-stablizer lower part
Totally 7 major loop device locations install interim 100 (patch shape of thermal resistance for end socket and each bundle of steam generator coaming plate bottom etc.
Formula), and ensure that all 100 functions of interim thermal resistance are normal, then four conducting wires of interim thermal resistance 100 are accessed as requested
On the specified terminal of 200 inside thermal resistance terminal module of collective and distributive type control system.
Thermal resistance terminal module and thermal resistance input module together constitute collective and distributive type control system 200 to temperature signal
The transmission process channel handled.
200 producer of collective and distributive type control system is reserved with partial redundance channel when designing terminal module and input module, uses
It is needed in design alteration or interim trial, therefore the partial redundance channel can be borrowed to be transmitted, be located to temporary temperature signal
Reason and display；Or directly temporary temperature signal is transmitted using the formal transmission channel of collective and distributive type control system 200, is located
Reason and display；Redundant channel and formal transmission channel can be used as the transmission process channel of temporary temperature.
Specifically, the temperature monitoring system, with reference to Fig. 3, further includes:
Master controller 300 connects the thermal resistance input module, for receiving and transferring the temporary temperature data；
KIC terminal 400 is connect, for receiving and showing the heat with the master controller 300 by Profibus bus
The temporary temperature data that resistance input module is sent.
The temporary temperature signal of acquisition after treatment, is handled to obtain temporary temperature data into microcontroller, then
Temporary temperature data are sent to master controller 300 by Profibus-DP fieldbus, master controller 300 passes through system network
(fast ethernet link of loop redundancy, the certainty real-time ethernet communications protocol based on data token) is uploaded to KIC clothes
Business device, then it is uploaded to the display of KIC terminal 400 by managing net (fast ethernet link, the ICP/IP protocol of loop redundancy), from
And realize the monitoring to temperature.
Such as 4 be the structural schematic diagram of the temperature monitoring system of the embodiment of the present invention, from fig. 4, it can be seen that the temperature monitoring
System further include:
Pre-fabricated electric cables are connect with the four-wire system thermal resistance terminal module.
Machine cage backplane bus, connect with the pre-fabricated electric cables.
64 needle DIN connectors are connect with the machine cage backplane bus and four-wire system thermal resistance input module；
The temporary temperature signal of the four-wire system thermal resistance collection by four-wire system thermal resistance terminal module, pre-fabricated electric cables,
Machine cage backplane bus and 64 needle DIN connectors are transmitted to four-wire system thermal resistance input module.
Profibus-DP communications transceiver A, Profibus-DP communications transceiver B in Fig. 4 is for reading and writing microcontroller
Temporary temperature data in device, then temporary temperature data are transmitted to by master controller 300 by Profibus bus.
Profibus-DP agreement uses the communication modes of poll between master and slave station, and address is read in slave station.
Specifically, the thermal resistance input module includes:
Overvoltage crowbar connects 64 needle DIN connectors, for playing overvoltage protection to thermal resistance input module；
Signal conversion circuit connects 64 needle DIN connectors, for temporary temperature signal to be converted to analog voltage signal.
Filtering signal conditioning circuit connects the signal conversion circuit, for being filtered to the analog voltage signal
Conditioning.The accuracy that conditioning is conducive to provide later data processing is filtered to signal.
Converter connects the filtering signal conditioning circuit, for analog voltage signal to be converted to digital voltage letter
Number, the data for acquiring digital voltage signal are transmitted to microcontroller.
Microcontroller connects the converter, carries out data processing for the data to the digital voltage signal, obtains
To temporary temperature data.
NM431 module is four-way four-wire system thermal resistance input module, is received by 64 needle DIN connectors from NM3431
4 road thermal resistance signals (the temporary temperature letter that module (four-way four-wire system thermal resistance terminal module) is inputted through machine cage backplane bus
Number), thermal resistance signal is converted to corresponding analog voltage signal with signal conversion circuit through overvoltage crowbar by each channel,
Then by entering converter after filtering conditioning, converter digital collection voltage data is sent into microcontroller and is carried out at data
Temporary temperature data are uploaded to master controller 300, main control eventually by Profibus-DP fieldbus by reason, microcontroller
Temporary temperature data are uploaded to KIC terminal 400 by device 300.
NM3431 module is the four-wire system thermal resistance terminal module in NM series control system hardware product, passes through dedicated 25
Core pre-fabricated electric cables are matched with NM431 module, to the thermal resistance in the Ω of 40 Ω~290 (- 149.3 DEG C~527.25 DEG C) range
Signal is sampled, and for handling the temperature signal of industry spot, constitutes complete I/O processing unit.
Reactor building on-site signal line is directly connected on the single terminal of NM3431 module, and every road is led using four
Line (band shielded cable) is connected on corresponding terminal, and terminal definition is as shown in Figure 5, wherein E1~E4 indicates excitation end, S1+
~S4+, S1-~S4- indicates that positive, reverse input end, C1~C4 indicate common end, and CH1~CH4 indicates channel number.
The terminal connections of the interim thermal resistance 100 in each channel are described as follows:
Each channel interface circuit diagram of the final NM431 module of NM3431 module is as shown in fig. 6, the overvoltage protection
Circuit includes the first overvoltage crowbar and the second overvoltage crowbar, and the signal conversion circuit includes resistance R1 and resistance
R2, the filtering signal conditioning circuit include resistance R3, resistance R4, capacitor C1, capacitor C2 and capacitor C3.
The excitation end of NM3431 module connects the first overvoltage crowbar with machine cage backplane bus by pre-fabricated electric cables,
The common end of NM3431 module connects the second overvoltage crowbar with machine cage backplane bus by pre-fabricated electric cables, NM3431 module
Normal phase input end connects one end of resistance R1 and one end of resistance R3, NM3431 module with machine cage backplane bus by pre-fabricated electric cables
Inverting input terminal one end of resistance R2 and one end of resistance R4 are connected with machine cage backplane bus by pre-fabricated electric cables, resistance R3's
The other end connects one end of capacitor C1 and one end of capacitor C2, the other end and capacitor C3 of the other end connection capacitor C2 of resistance R4
One end, the input terminal of the both ends of capacitor C2 as the output end connection A/D converter of filtering signal conditioning circuit.
It is monitored using NM3431 module, NM431 module and 100 pairs of interim thermal resistance live temporary temperature signals
Process, do not need to save critical path time, lifting test accuracy rate using a large amount of hardwires, while avoiding live hard
Wiring is surprisingly broken or loosens and cause the loss of temperature monitoring signal or the situation of exception.
Specifically, the collective and distributive type control system 200 further include:
Power supply device is connected with DC/DC converter is isolated, for giving the collective and distributive type control system 200 to power.
DC/DC converter is isolated, is connect with power supply device, the 24V voltage for exporting power supply device is converted to 5V electricity
Pressure.
The 5V power supply power supply that the communicating circuit part of NM431 module is inputted by system；Microcontroller and signal processing
The 24V power supply device that is inputted by system of power supply provided after isolation DC/DC conversion.
First overvoltage circuit connects the output end of power supply device, the second overvoltage crowbar by isolation DC/DC converter
Connect the input terminal of power supply device.
Embodiment two
The embodiment of the present invention provides major loop device temperature monitoring method between a kind of NSSS cold conditions function test, with embodiment
One temperature monitoring system is corresponding, and not detailed place can refer to embodiment one.
As shown in fig. 7, method includes the following steps:
S101, the temporary temperature signal for acquiring major loop equipment.
S102, the temporary temperature signal is received.
S103, the processing temporary temperature signal obtain temporary temperature data.
During test, in pressure container flange, pressure vessel head flange, pressure vessel bottom end socket, voltage-stablizer lower part
Totally 7 major loop device locations install interim thermal resistance for end socket and each bundle of steam generator coaming plate bottom etc., by interim
The temporary temperature signal of thermal resistance collection major loop equipment receives and turns using the thermal resistance terminal module of collective and distributive type control system
Send the temporary temperature signal to the thermal resistance input module of collective and distributive type control system, the processing of thermal resistance input module is described interim
Temperature signal obtains temporary temperature data.
As shown in figure 8, after step S103, further includes:
S104, the temporary temperature data are received.
S105, the display temporary temperature data.
The thermal resistance input module processing temporary temperature signal obtains temporary temperature data later for the temporary temperature number
According to master controller is sent to, master controller passes through Profibus bus again to be shown in the temporary temperature data transmission to KIC terminal
Show.
Wherein, the step S102 includes: by thermal resistance terminal module, pre-fabricated electric cables, machine cage backplane bus and 64 needles
DIN connector receives the temporary temperature signal.
Step S103 include it is following step by step:
The temporary temperature signal is converted into analog voltage signal.
Conditioning is filtered to the analog voltage signal.
Analog voltage signal is converted into digital voltage signal, acquires the data of digital voltage signal.
Data processing is carried out to the data of the digital voltage signal, obtains temporary temperature data.
Thermal resistance signal is converted to corresponding simulation with signal conversion circuit through overvoltage crowbar by temporary temperature signal
Voltage signal, after then improving by filtering and (be filtered the accuracy that conditioning is conducive to improve later data processing to signal)
Into converter, converter digital collection voltage data is sent into microcontroller and carries out data processing, and microcontroller finally leads to
It crosses Profibus-DP fieldbus and temporary temperature data is uploaded into master controller, master controller uploads temporary temperature data
To KIC terminal
In conclusion between NSSS cold conditions function test provided in an embodiment of the present invention major loop device temperature monitoring system and
Method, by interim thermal resistance collection temporary temperature signal, temporary temperature is believed in the transmission process channel of collective and distributive type control system
It number carries out transmission and processing obtains temperature data, which, which can be avoided, uses signal recorder analyser and multiple
24V constant-current supply, save the cost；It avoids showing using while signal recorder analyser and multiple 24V constant-current supplies in complicated
A large amount of hardwires are avoided in the environment of field, save critical path time, lifting test accuracy rate；Test result is not by 24V constant current
The influence of the accuracy of the stability and signal analysis recorder in source；It is logical by the process of signal transmission of collective and distributive type control system
Road completes effective monitoring to major loop device temperature, protects the safety of main equipment and the safety of field test personnel.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims
Subject to.
Claims (9)
- Major loop device temperature monitors system between 1.NSSS cold conditions function test characterized by comprisingInterim thermal resistance is set to the outer surface of major loop equipment, for acquiring the temporary temperature signal of major loop equipment；Collective and distributive type control system, in NSSS cold conditions function test, disconnecting the connection with formal thermal resistance temperature instrument, and Connect the interim thermal resistance；The collective and distributive type control system includes thermal resistance terminal module and thermal resistance input module, described Thermal resistance terminal module connects the interim thermal resistance, and for receiving and transferring the temporary temperature signal, the thermal resistance is defeated Enter module and connect the thermal resistance terminal module, obtains temporary temperature data for receiving and handling the temporary temperature signal； The redundant channel of the collective and distributive type control system and formal transmission channel can be used as the transmission process channel of temporary temperature.
- 2. temperature monitoring system as described in claim 1, which is characterized in that further include:Master controller connects the thermal resistance input module, for receiving and transferring the temporary temperature data；KIC terminal is connect by Profibus bus with the master controller, for receiving and showing the thermal resistance input mould The temporary temperature data that block is sent.
- 3. temperature monitoring system as described in claim 1, which is characterized in that the interim thermal resistance is four-wire system thermal resistance, The thermal resistance terminal module is four-wire system thermal resistance terminal module, and thermal resistance input module is that four-wire system thermal resistance inputs mould Block；The temperature monitoring system further include:Pre-fabricated electric cables are connect with the four-wire system thermal resistance terminal module；Machine cage backplane bus, connect with the pre-fabricated electric cables；64 needle DIN connectors are connect with the machine cage backplane bus and four-wire system thermal resistance input module；The temporary temperature signal of the four-wire system thermal resistance collection passes through four-wire system thermal resistance terminal module, pre-fabricated electric cables, machine cage Backplane bus and 64 needle DIN connectors are transmitted to four-wire system thermal resistance input module.
- 4. temperature monitoring system as claimed in claim 3, which is characterized in that the thermal resistance input module includes:Overvoltage crowbar connects 64 needle DIN connectors, for playing overvoltage protection to thermal resistance input module；Signal conversion circuit connects 64 needle DIN connectors, for temporary temperature signal to be converted to analog voltage signal；Filtering signal conditioning circuit connects the signal conversion circuit, for being filtered conditioning to the analog voltage signal；Converter connects the filtering signal conditioning circuit and adopts for analog voltage signal to be converted to digital voltage signal The data of collection digital voltage signal are transmitted to microcontroller；Microcontroller connects the converter, carries out data processing for the data to the digital voltage signal, is faced When temperature data.
- 5. temperature monitoring system as claimed in claim 4, which is characterized in that the collective and distributive type control system further include:Power supply device is connected with DC/DC converter is isolated, for giving the collective and distributive type control system to power；DC/DC converter is isolated, is connect with power supply device, the 24V voltage for exporting power supply device is converted to 5V voltage.
- Major loop device temperature monitoring method between 6.NSSS cold conditions function test characterized by comprisingIn NSSS cold conditions function test, collective and distributive type control system disconnects the connection with formal thermal resistance temperature instrument, and connects Interim thermal resistance makes the temporary temperature signal of the acquisition major loop equipment of the interim thermal resistance；The collective and distributive type control system receives the temporary temperature signal；The collective and distributive type control system handles the temporary temperature signal and obtains temporary temperature data；The collective and distributive type control system Redundant channel and formal transmission channel can be used as the transmission process channel of temporary temperature.
- 7. temperature monitoring method as claimed in claim 6, which is characterized in that the processing temporary temperature signal is faced When temperature data the step of after, further includes:Receive the temporary temperature data；Show the temporary temperature data.
- 8. temperature monitoring method as claimed in claim 6, which is characterized in that the step of the reception temporary temperature signal It include: to receive the temporary temperature by thermal resistance terminal module, pre-fabricated electric cables, machine cage backplane bus and 64 needle DIN connectors Signal.
- 9. temperature monitoring method as claimed in claim 8, which is characterized in that the processing temporary temperature signal is faced When temperature data the step of include:The temporary temperature signal is converted into analog voltage signal；Conditioning is filtered to the analog voltage signal；Analog voltage signal is converted into digital voltage signal, acquires the data of digital voltage signal；Data processing is carried out to the data of the digital voltage signal, obtains temporary temperature data.
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