CN106373624B - A kind of dynamic carves stick controlling test stick and is inserted into starting point automatic judging method - Google Patents
A kind of dynamic carves stick controlling test stick and is inserted into starting point automatic judging method Download PDFInfo
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- CN106373624B CN106373624B CN201610912705.XA CN201610912705A CN106373624B CN 106373624 B CN106373624 B CN 106373624B CN 201610912705 A CN201610912705 A CN 201610912705A CN 106373624 B CN106373624 B CN 106373624B
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- stick
- control rod
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- starting point
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
-
- 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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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention belongs to nuclear reactor physical test method fields, stick controlling test stick, which is carved, more particularly to a kind of dynamic is inserted into starting point automatic judging method, purpose is to provide a kind of dynamic and carves stick controlling test stick insertion starting point automatic judging method, extensive use during stick is tested can be carved in business nuclear power plant dynamic, reduce and judge the inaccurate test error brought because control rod is inserted into starting point.Technical scheme of the present invention can realize that automatic decision control rod is inserted into starting point during dynamic carves stick experiment, can effectively reduce and artificially judge test error caused by starting point inaccuracy.
Description
Technical field
The invention belongs to nuclear reactor physical test method fields, and in particular to a kind of dynamic is carved stick controlling test stick and is inserted into
Starting point automatic judging method.
Background technology
It is a kind of test method of quick measurement control rod worth that dynamic, which carves stick experiment, and this method passes through quick insert continually
Control rod surveys current-responsive variation to the heap outer core of acquisition and carries out space amendment, obtains control rod group value.It is carved implementing dynamic
During stick experiment, need when accurate judgement control rod is initially inserted into reactor core, so as to which temporally accurate import is corrected
The factor, processing obtain control rod worth.Conventional method is dynamically to carve stick testing crew to exchange in advance with reactor operator, both sides
3,2,1 three numbers of common inverse, when counting down toward number 1, reactor operator presses control rod underthrust button, and dynamic carves stick
Testing crew records corresponding control rod and is inserted into the time.This method artifical influence factor is larger, and different testing crews is with reacting
The judgement that heap operator can give dynamic to carve stick control rod insertion starting point brings different errors.For these reasons, it needs to grind
Send out a kind of method that automatic decision control rod is inserted into starting point in dynamic carves stick experiment.
Invention content
Stick controlling test stick, which is carved, the object of the present invention is to provide a kind of dynamic is inserted into starting point automatic judging method, Ke Yi
Business nuclear power plant dynamic carves extensive use in stick experiment, reduces and judges that the inaccurate experiment brought misses because control rod is inserted into starting point
Difference.
The invention is realized in this way：
A kind of dynamic carves stick controlling test stick and is inserted into starting point automatic judging method, specifically comprises the following steps：
Step 1：The position signal V (t) of control rod group to be measured is connect from the existing power station data acquisition system of nuclear power plant
Enter to carve in the reactivity meter of stick function with dynamic and be recorded；
Step 2：Control rod group to be measured is promoted to reactor roof, records control rod V (t) letter to be measured in this state
Numbers 2 minutes；
Step 3：V (t) signal datas recorded according to step 2 find out the maximum value V (t in 2 minutesmax) and it is minimum
Value V (tmin), control rod position signal fluctuation threshold parameter V is then calculated according to formula oned；
Step 4：All V (t) signal datas recorded to step 2 carry out arithmetic average and V are calculated1；
Step 5：Start dynamic and carve stick experiment, and use control rod group to be measured during the experiment of reactivity meter synchronous recording
Position signal V (t)；
Step 6：The control rod position signal versus time curve V (t) recorded according to step 5, by following public affairs
Formula two calculates the V that control rod position signal V (t) is calculated with step 4 in real time1Between difference DELTA；
Step 7：V (t) curves according to step 5, by Δ and VdIt is compared, finds out a numerical value V (t0) so that
Its Δ numerical value and V that calculatedIt is equal, then V (t0) it is corresponding at the time of t0It is that dynamic carves that stick controlling test stick is inserted into reactor core
Begin the time.
Formula one as described above：
Vd=(V (tmax)-V(tmin))/2 (formula one)
Formula two as described above：
Δ=(V1- V (t)) (formula two)
The beneficial effects of the invention are as follows：
Technical scheme of the present invention can realize that automatic decision control rod is inserted into starting point during dynamic carves stick experiment,
It can effectively reduce and artificially judge test error caused by starting point inaccuracy.
Description of the drawings
Fig. 1 is the wiring schematic diagram of reactivity meter；
Fig. 2 is V (t) signal curves when control rod group to be measured is promoted to reactor roof；
Fig. 3 is position signal V (t) curves of control rod group to be measured during experiment.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.
A kind of dynamic carves stick controlling test stick and is inserted into starting point automatic judging method, specifically comprises the following steps：
Step 1：The position signal V (t) of control rod group to be measured is connect from the existing power station data acquisition system of nuclear power plant
Enter to carve in the reactivity meter of stick function with dynamic and be recorded, signal wiring schematic diagram is as shown in Figure 1, by power plant's Nuclear Instrument system
(RPN) one of power range top and the bottom current signal of 4 power ranges accesses an adder.It will be up and down by adder
The current signal summation in portion.Then the signal is conveyed to the reactivity meter that stick function is carved with dynamic.
Step 2：Control rod group to be measured is promoted to reactor roof, records control rod V (t) letter to be measured in this state
Numbers about 2 minutes, as shown in Figure 2.
Step 3：V (t) signal datas recorded according to step 2 find out the maximum value V (t in 2 minutesmax) and it is minimum
Value V (tmin), control rod position signal fluctuation threshold parameter V is then calculated according to formula oned。
Vd=(V (tmax)-V(tmin))/2 (formula one)
Step 4：All V (t) signal datas recorded to step 2 carry out arithmetic average and V are calculated1。
Step 5：Start dynamic and carve stick experiment, and use control rod group to be measured during the experiment of reactivity meter synchronous recording
Position signal V (t), as shown in Figure 3.
Step 6：The control rod position signal versus time curve V (t) recorded according to step 5, by following public affairs
Formula two calculates the V that control rod position signal V (t) is calculated with step 4 in real time1Between difference DELTA.
Δ=(V1- V (t)) (formula two)
Step 7：V (t) curves according to step 5, by Δ and VdIt is compared, finds out a numerical value V (t0) so that
Its Δ numerical value and V that calculatedIt is equal, then V (t0) it is corresponding at the time of t0It is that dynamic carves that stick controlling test stick is inserted into reactor core
Begin the time.
The implementation of the present invention is explained in detail above in conjunction with embodiment, but the present invention is not limited to above-mentioned realities
Example is applied, it within the knowledge of a person skilled in the art, can also be under the premise of present inventive concept not be departed from
Various changes can be made.The prior art may be used in the content not being described in detail in description of the invention.
Claims (1)
1. a kind of dynamic carves stick controlling test stick and is inserted into starting point automatic judging method, specifically comprise the following steps：
Step 1：The position signal V (t) of control rod group to be measured is accessed into band from the existing power station data acquisition system of nuclear power plant
Dynamic is carved to be recorded in the reactivity meter of stick function；
Step 2：Control rod group to be measured is promoted to reactor roof, control rod V (t) signal 2 to be measured is recorded in this state and divides
Clock；
Step 3：V (t) signal datas recorded according to step 2 find out the maximum value V (t in 2 minutesmax) and minimum value V
(tmin), control rod position signal fluctuation threshold parameter V is then calculated according to formula oned；
The formula one：
Vd=(V (tmax)-V(tmin))/2 (formula one)
Step 4：All V (t) signal datas recorded to step 2 carry out arithmetic average and V are calculated1；
Step 5：Start dynamic and carve stick experiment, and use the position of control rod group to be measured during the experiment of reactivity meter synchronous recording
Confidence V (t)；
Step 6：The control rod position signal versus time curve V (t) recorded according to step 5, by following equation two
The V that control rod position signal V (t) is calculated with step 4 is calculated in real time1Between difference DELTA；
The formula two：
Δ=(V1- V (t)) (formula two)
Step 7：V (t) curves according to step 5, by Δ and VdIt is compared, finds out a numerical value V (t0) so that its meter
The Δ numerical value and V of calculatingdIt is equal, then V (t0) it is corresponding at the time of t0When being the starting that dynamic carves stick controlling test stick insertion reactor core
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610912705.XA CN106373624B (en) | 2016-10-20 | 2016-10-20 | A kind of dynamic carves stick controlling test stick and is inserted into starting point automatic judging method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610912705.XA CN106373624B (en) | 2016-10-20 | 2016-10-20 | A kind of dynamic carves stick controlling test stick and is inserted into starting point automatic judging method |
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| Publication Number | Publication Date |
|---|---|
| CN106373624A CN106373624A (en) | 2017-02-01 |
| CN106373624B true CN106373624B (en) | 2018-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610912705.XA Active CN106373624B (en) | 2016-10-20 | 2016-10-20 | A kind of dynamic carves stick controlling test stick and is inserted into starting point automatic judging method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164480B (en) * | 2020-09-03 | 2023-03-24 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Rod drop test device and system of control rod drive wire |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5229066A (en) * | 1991-08-05 | 1993-07-20 | Westinghouse Electric Corp. | Control rod position indication system |
| CN104376884B (en) * | 2013-08-15 | 2017-03-22 | 中国原子能科学研究院 | Portable reactivity meter for carrying out full measuring range automatic monitoring on reactor signal, and reactivity correction method |
| CN104916337B (en) * | 2014-03-14 | 2017-11-24 | 江苏核电有限公司 | A kind of data processing method of control rod calculus value measurement experiment |
| CN105336382B (en) * | 2014-08-15 | 2017-12-12 | 中国广核集团有限公司 | Nuclear power station dynamic carves rod field conduct method |
| CN105448362B (en) * | 2015-11-23 | 2017-06-30 | 中核核电运行管理有限公司 | By the use of power range detector and signal rod method is carved as the dynamic of signal source |
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