CN110148481A - The judgment method of reactor hydraulic safe rod drives operating status - Google Patents
The judgment method of reactor hydraulic safe rod drives operating status Download PDFInfo
- Publication number
- CN110148481A CN110148481A CN201910479175.8A CN201910479175A CN110148481A CN 110148481 A CN110148481 A CN 110148481A CN 201910479175 A CN201910479175 A CN 201910479175A CN 110148481 A CN110148481 A CN 110148481A
- Authority
- CN
- China
- Prior art keywords
- rod
- time
- rod withdrawal
- operating status
- judgment method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- G21C17/12—Sensitive element forming part of control element
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D3/00—Control of nuclear power plant
- G21D3/04—Safety arrangements
- G21D3/06—Safety arrangements responsive to faults within the plant
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The present invention provides a kind of judgment methods of reactor hydraulic safe rod drives operating status, this approach includes the following steps, when carrying out driving rod withdrawal to safety rod using pump, the rod withdrawal time is recorded, the rod withdrawal time recorded is compared with the default rod withdrawal time, when the difference between the rod withdrawal time and default rod withdrawal time recorded reaches certain threshold value, determine that the fluid circuit for being promoted to safety rod is in high-impedance state, and in the case where fluid circuit is in high-impedance state, the resistance processing that disappears is carried out to fluid circuit.It can be made prediction to the resistance in the driving circuit of safety rod by this judgment method, and there are handled in time when larger resistance circuit in driving circuit, in order to avoid due in driving circuit resistance it is too big and occur safety rod rod withdrawal overlong time or can not rod withdrawal the occurrence of, thus avoid reactor from occurring influencing its dependent failure operated normally.
Description
Technical field
The present invention relates to reactor field, more particularly, to the hydraulic driving system to the safety rod in reactor into
The method of row state judgement.
Background technique
Currently, the principle of hydraulic safe rod drives is to realize the promotion of safety rod using the pressure head of pump, realized by gravity
Passive scram.During reactor operation, safety rod is maintained at top, and water flow passes through gap reflow tank between interior outer shell,
Keep safety rod in extreme higher position by hydraulic balance.When normal shutdown or breakdown, water flow decompression is rapidly returned to water in cylinder
In case, safe rod assembly under the effect of gravity, drops down onto bottom end, stops reactor.
The general structure of safety rod hydro powered line is that piston is rigidly connected by connecting rod and safety rod, in reactor operation
Period, safety rod hydro powered line are maintained at extreme higher position by hydraulic balance, safety rod drive component in line and inner casing or
Frotteurism is constantly on the inside of top cover, safety rod is promoted and underthrust also can generate friction with inner casing.Some safety rods are because of reactor core
Structural requirement installation is to be tilted a certain angle, and the friction of the component on hydro powered line can be more serious.Safety rod driving
Device can all use special designing at mutual frictional position, mitigate damage of the friction to structure as far as possible.
But in the actual motion of reactor, long-term friction can generate a certain amount of metal fragment, and the waterpower of safety rod is driven
Gap very little between the component and inner casing of moving-wire, with the accumulation of reactor operation time, metal fragment can be more and more, greatly
Clast can by cross filter screen intercept, and the lesser clast of size can be carried to by water at certain positions of fluid circuit accumulate,
The hydro powered internal resistance in fluid circuit is caused to become larger, to keep the rod withdrawal time elongated.Initial stage, debris quantities are less, by
It can be taken away by water flow in vibration or other reasons, so that hydro powered internal resistance be made to become smaller again, the rod withdrawal time restores normal again.Such as
This is reciprocal, and the clast until being accumulated can not be taken away by water flow again more to a certain degree, when the internal resistance in hydro powered circuit is big
When the lifting force of safety rod, safety rod will be unable to be promoted, and will be unable to the promotion operation for realizing safety rod at this time, to can not open
The normal operation of dynamic reactor.
To a certain extent, there is safety in reactor operation in debris accumulation in the fluid circuit of hydraulic safe rod drives
, there is the case where cannot promoting safety rod in simulation test in the phenomenon that stick decompression, this reliable and stable operation to reactor
Cause great security risk.The operating status of safety rod driving circuit is generally monitored using pressure gauge at present, is existed
Single for the monitoring means of the important equipment of reactor, pressure gauge is insensitive to the resistance transient changing in driving circuit to ask
Topic.Safety rod driving circuit is one in full closeding state and has radioactive circuit system, there is no other to have at present
Operating status inside the method monitoring fluid circuit of effect.
Summary of the invention
At least one of in order to solve the above-mentioned technical problem aspect, the embodiment provides a kind of reactor water
The method of power drive safety rod operating status judgement is carried out real-time by the rod withdrawal time according to the method for the present invention to safety rod
Monitoring, so as to judge the flow resistance in hydro powered circuit, and in the case where resistance reaches certain numerical value,
Relevant treatment is carried out to hydro powered circuit, leads to not realize that safety rod is promoted to avoid becoming larger due to internal flow resistance
The problem of appearance.
According to an aspect of the present invention, a kind of judgment method of reactor hydraulic safe rod drives operating status is provided,
Include the following steps, when carrying out driving rod withdrawal to safety rod using pump, the rod withdrawal time is recorded；The rod withdrawal that will be recorded
Time is compared with the default rod withdrawal time；When the difference between the rod withdrawal time and default rod withdrawal time recorded reaches certain
When threshold value, determine that the fluid circuit for being promoted to safety rod is in high-impedance state；And the resistance that disappears is carried out to fluid circuit
Processing.
One preferred embodiment of the judgment method of reactor hydraulic safe rod drives operating status according to the present invention,
Record is carried out to the rod withdrawal time and includes time for starting of record security stick enhancing action and when safety rod enhancing action terminates
Between.
Another in the judgment method of reactor hydraulic safe rod drives operating status according to the present invention is preferred real
It applies in example, record to the rod withdrawal time includes record pump startup or power starts the time increased and pump stopping or power is opened
Begin the reduced time.
Another of the judgment method of reactor hydraulic safe rod drives operating status according to the present invention is preferably implemented
Example, presetting the rod withdrawal time is the time set by operator.
Also one in the judgment method of reactor hydraulic safe rod drives operating status according to the present invention is preferred real
It applies in example, by for statistical analysis to the multiple rod withdrawal time recorded, when showing that rod withdrawal average time is as default rod withdrawal
Between.
Another of the judgment method of reactor hydraulic safe rod drives operating status according to the present invention is preferably implemented
Example, the threshold value are the 50% of default rod withdrawal time.
Another in the judgment method of reactor hydraulic safe rod drives operating status according to the present invention is preferred real
It applies in example, it is related with the output pressure of pump to preset the rod withdrawal time.
Another of the judgment method of reactor hydraulic safe rod drives operating status according to the present invention is preferably implemented
Example carries out disappear pressure or flow velocity of the resistance processing including improving the fluid in fluid circuit to fluid circuit.
Also one in the judgment method of reactor hydraulic safe rod drives operating status according to the present invention is preferred real
It applies in example, includes being cleaned to the filter screen in fluid circuit to the fluid circuit resistance processing that disappear.
Compared with prior art, the judgment method of reactor hydraulic safe rod drives operating status according to the present invention is simple
It is practical, without increasing hardware cost, abrasion condition can be found in time and can repair or maintain as early as possible, to improve
The equipment dependability of reactor ensure that the safe and stable operation of reactor.
Detailed description of the invention
By the description made for the present invention of below with reference to attached drawing, other objects and advantages of the present invention will be aobvious and easy
See, and can help that complete understanding of the invention will be obtained.
Fig. 1 is the flow chart of the judgment method of reactor hydraulic safe rod drives operating status according to the present invention.
Fig. 2 is the rod withdrawal time change schematic diagram counted to the rod withdrawal time of safety rod.
It should be noted that attached drawing is not necessarily to scale to draw, but only not influence the schematic of reader's understanding
Mode is shown.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the attached drawing of the embodiment of the present invention,
Technical solution of the present invention is clearly and completely described.Obviously, described embodiment is an implementation of the invention
Example, instead of all the embodiments.Based on described the embodiment of the present invention, those of ordinary skill in the art are without creating
Property labour under the premise of every other embodiment obtained, shall fall within the protection scope of the present invention.
Unless otherwise defined, the technical term or scientific term that the present invention uses should be tool in fields of the present invention
The ordinary meaning for thering is the personage of general technical ability to be understood.
The present invention proposes a kind of judgment method of reactor hydraulic safe rod drives operating status, passes through this judgment method
It can make prediction to the resistance in the driving circuit of safety rod, and there are carry out when larger resistance to circuit in driving circuit
Processing in time, so as not to due in driving circuit resistance it is too big and occur safety rod rod withdrawal overlong time or can not rod withdrawal situation hair
It is raw, thus avoid reactor from occurring influencing its dependent failure operated normally.
The judgment method of reactor hydraulic safe rod drives operating status according to the present invention includes the following steps, firstly,
When carrying out driving rod withdrawal to safety rod using pump, the rod withdrawal time is recorded.Then, by the rod withdrawal time recorded and in advance
If the rod withdrawal time is compared.When the difference between the rod withdrawal time and default rod withdrawal time recorded reaches certain threshold value,
Determine that the fluid circuit for being promoted to safety rod is in high-impedance state.The case where fluid circuit is in high-impedance state
Under, the resistance processing that disappears is carried out to fluid circuit.Here the resistance processing that disappears refers to eliminating the resistance in fluid circuit, so that fluid returns
Road is restored to normal condition.Here, the record rod withdrawal time can be carried out by the detection of the variation of the motion state to safety rod,
It can also be carried out by the detection of the movement to the pump for driving safe rod motion.For example, can recorde peace when rod withdrawal movement occurs
The time that full stick lifts since its minimum lower dead center, then record security stick reaches its highest goes up in lifting process and stops
Time when point position records the rod withdrawal time that the interval between the time is safety rod twice.Contact sensor can be passed through
The time of lower dead center and the time of safety rod arrival top dead centre are left to sense safety rod, naturally it is also possible to by other means
Measure the rod withdrawal time of safety rod.
Therefore, being recorded to the rod withdrawal time also can be including the time that record security stick enhancing action starts and peace
The time that full stick enhancing action terminates, or may include record pump startup or power start the time increased and pump stop or
Power starts the reduced time.When being recorded using this actuation time to the rod withdrawal time, when pump is since shutdown status
It when starting, is recorded at the time of being opened from pump, certainly, that is, pump increases to rod withdrawal since zero output power rating
At the time of power rating；When safety rod is promoted to top dead center position, pump is shut down or is entered safety rod and keeps power output shape
State, that is, pump power are decreased to zero or are decreased to safety rod keep power from hoisting power, record to this moment.?
The variation of this electric current that can detect pump by current sensor is recorded.It is of course also possible to use other recording modes.
Whether judgement is normally carried out to the rod withdrawal time by record to the rod withdrawal time and calculating, it can be by rod withdrawal
Time and default rod withdrawal time are compared to execute above-mentioned judgement.The default rod withdrawal time can for by operator set when
Between, i.e., the rod withdrawal time is determined according to experimental result or operating experience, and using the rod withdrawal time as the default rod withdrawal time
It is set in relevant operation system.
It is, of course, also possible to according to attached mode shown in Fig. 2 by for statistical analysis to the multiple rod withdrawal time recorded,
Obtain rod withdrawal average time as the default rod withdrawal time.At this point it is possible to the rod withdrawal time several times is recorded, as shown in Fig. 2,
The rod withdrawal time removal that will deviate from rod withdrawal time basic trend line, carries out mean value calculation to the remaining rod withdrawal time, can incite somebody to action
The average value is as the default rod withdrawal time.In the judgment method of reactor hydraulic safe rod drives operating status according to the present invention
In, real-time update can be carried out to the default rod withdrawal time, for example can count to the nearest repeatedly rod withdrawal time, before removal
The rod withdrawal time counted, so that the default rod withdrawal time can be closer to the truth of reactor.
In addition, from Fig. 2 it can also be seen that, in the operational process of safety rod, metal fragment, safety rod can be generated because of friction
Gap very little between the piston and inner wall of driving mechanism, a part of generated clast can in safety rod driving circuit heap
Product, causes the rod withdrawal time elongated, after clast is carried away by the flow, the rod withdrawal time can then restore normal.And so on, the rod withdrawal time
Cyclically-varying is presented.By carrying out real-time monitoring using rod withdrawal time to safety rod according to the method for the present invention, can and
When understand safety rod state of wear illustrate the interior of the driving circuit of safety rod when obviously becoming larger the rod withdrawal time of safety rod
Resistive is big, the maintenance work of Ying Jinhang safety rod driving circuit.
The rod withdrawal time measured and default rod withdrawal time are compared, if the difference of the two is more than a certain threshold value,
Determine rod withdrawal overlong time, drive the resistance in the fluid circuit of safe rod motion larger, needs to handling.Above-mentioned threshold value
It can be set as the 50% of default rod withdrawal time, it is of course also possible to other threshold values are arranged according to actual needs, such as to mentioning
Stick time change is than that in more sensitive reactor, can set the threshold value to the 20% or smaller of the default rod withdrawal time, thus
It can be handled than relatively frequently convection current body circuit；And in the reactor less sensitive to rod withdrawal time change, it can incite somebody to action
The threshold value is set as the 80% or bigger of default rod withdrawal time, can less handle in this way fluid circuit.
In addition, the default rod withdrawal time is also related with the output pressure of pump, such as when the output pressure of pump is big, the rod withdrawal time
Will be relatively short, and the output pressure hour pumped, then the rod withdrawal time will be relatively long.It can also be by fluid circuit
Control valve is set to adjust the flow velocity in fluid circuit, thus can also change the pressure in fluid circuit, thus change rod withdrawal
Time.Accordingly it is also possible to be changed according to the aperture of the output pressure of pump and control valve to the default rod withdrawal time.
Here, carrying out disappear pressure or flow velocity of the resistance processing including improving the fluid in fluid circuit to fluid circuit.Due to
There are metal fragments caused by the friction between the component and inner casing on safety rod driving line in fluid circuit, since metal is broken
It considers accumulation in fluid circuit to be worth doing and leads to the increase of the resistance in fluid circuit, the fluid improved in fluid circuit can be passed through
Pressure or the mode of flow velocity make up the pressure loss brought by the increase of resistance.It can be by improving the stream in fluid circuit
The pressure or flow velocity of body take away metal fragment, and metal fragment is filtered or is retained by filter screen, further lead to
It crosses and filter screen is rinsed to complete the removal of metal fragment, to achieve the purpose that thoroughly to clean fluid circuit.
The judgment method of reactor hydraulic safe rod drives operating status according to the present invention can be by the rod withdrawal time
Statistics it is whether abnormal to judge the rod withdrawal time, and thus judge that the fluid circuit on the driving line of safety rod whether there is resistance
Excessive problem, thus, it is possible to make anticipation to safety problem relevant to safety rod rod withdrawal, thus right before failure
Relevant issues are handled, to be avoided as much as the appearance of failure.Safety rod can be driven according to the method for the present invention
The internal resistance variation in circuit is accomplished to find in time, be handled in time, to improve the safety of reactor operation.
Judgment method according to the present invention is simple and practical, is increased without hardware cost, can accomplish to reactor safety stick
Driving line on component wear condition discovery early and on-call maintenance, improve reactor plant reliability of operation and
Safety.
For the embodiment of the present invention, it is also necessary to explanation, in the absence of conflict, the embodiment of the present invention and reality
Applying the feature in example can be combined with each other to obtain new embodiment.
More than, only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, and it is of the invention
Protection scope should be subject to the protection scope in claims.
Claims (9)
1. a kind of judgment method of reactor hydraulic safe rod drives operating status, comprising the following steps:
When carrying out driving rod withdrawal to the safety rod using pump, the rod withdrawal time is recorded；
The rod withdrawal time recorded is compared with the default rod withdrawal time；
When the difference between the rod withdrawal time and the default rod withdrawal time recorded reaches certain threshold value, determine for peace
The fluid circuit that full stick is promoted is in high-impedance state；And
The resistance processing that disappears is carried out to the fluid circuit.
2. the judgment method of reactor hydraulic safe rod drives operating status according to claim 1, wherein when to rod withdrawal
Between to carry out record include recording time that the safety rod enhancing action starts and when the safety rod enhancing action terminates
Between.
3. the judgment method of reactor hydraulic safe rod drives operating status according to claim 1, wherein when to rod withdrawal
Between to carry out record include recording the pump startup or power starts the time increased and pump stopping or power starts to reduce
Time.
4. the judgment method of reactor hydraulic safe rod drives operating status according to any one of claim 1-3,
In, the default rod withdrawal time is the time set by operator.
5. the judgment method of reactor hydraulic safe rod drives operating status according to any one of claim 1-3,
In, by for statistical analysis to the multiple rod withdrawal time recorded, when showing that rod withdrawal average time is as the default rod withdrawal
Between.
6. the judgment method of reactor hydraulic safe rod drives operating status according to any one of claim 1-3,
In, the threshold value is the 50% of the default rod withdrawal time.
7. the judgment method of reactor hydraulic safe rod drives operating status according to any one of claim 1-3,
In, the default rod withdrawal time is related with the output pressure of the pump.
8. the judgment method of reactor hydraulic safe rod drives operating status according to any one of claim 1-3,
In, disappear pressure or flow velocity of the resistance processing including improving the fluid in the fluid circuit are carried out to the fluid circuit.
9. the judgment method of reactor hydraulic safe rod drives operating status according to any one of claim 1-3,
In, it include being cleaned to the filter screen in the fluid circuit to the fluid circuit resistance processing that disappear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910479175.8A CN110148481B (en) | 2019-06-03 | 2019-06-03 | Method for judging running state of reactor hydraulic drive safety rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910479175.8A CN110148481B (en) | 2019-06-03 | 2019-06-03 | Method for judging running state of reactor hydraulic drive safety rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110148481A true CN110148481A (en) | 2019-08-20 |
| CN110148481B CN110148481B (en) | 2021-05-18 |
Family
ID=67590271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910479175.8A Active CN110148481B (en) | 2019-06-03 | 2019-06-03 | Method for judging running state of reactor hydraulic drive safety rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110148481B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114188051A (en) * | 2021-12-03 | 2022-03-15 | 中国原子能科学研究院 | Method and device for monitoring position of safety rod |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013611A (en) * | 2007-01-26 | 2007-08-08 | 清华大学 | Waterpower driving mechanism for reactor safety rod |
| EP2957932A1 (en) * | 2014-06-20 | 2015-12-23 | Rolls-Royce Power Engineering PLC | Method of optimising the output of a sensor |
| US20160365161A1 (en) * | 2011-06-14 | 2016-12-15 | Samuel Caylor | Non-intrusive error detection techniques for control and shutdown rod position in nuclear reactors |
| CN107301884A (en) * | 2017-07-24 | 2017-10-27 | 哈尔滨工程大学 | A kind of hybrid nuclear power station method for diagnosing faults |
| CN107481774A (en) * | 2017-07-18 | 2017-12-15 | 西安交通大学 | A kind of pilot system and its test method of the passive shutdown unit of nuclear reactor |
| CN107527663A (en) * | 2017-07-18 | 2017-12-29 | 西安交通大学 | Study the visual test device of the passive shutdown unit performance of hydraulic suspension type |
| CN108695004A (en) * | 2018-05-18 | 2018-10-23 | 西安交通大学 | Waterpower buffer structure for the passive shutdown experimental provision of hydraulic suspension type |
| WO2019036242A1 (en) * | 2017-08-15 | 2019-02-21 | Westinghouse Electric Company Llc | Detection apparatus and method of detecting the neutron absorption capability of a control element of a nuclear installation |
-
2019
- 2019-06-03 CN CN201910479175.8A patent/CN110148481B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013611A (en) * | 2007-01-26 | 2007-08-08 | 清华大学 | Waterpower driving mechanism for reactor safety rod |
| US20160365161A1 (en) * | 2011-06-14 | 2016-12-15 | Samuel Caylor | Non-intrusive error detection techniques for control and shutdown rod position in nuclear reactors |
| EP2957932A1 (en) * | 2014-06-20 | 2015-12-23 | Rolls-Royce Power Engineering PLC | Method of optimising the output of a sensor |
| CN107481774A (en) * | 2017-07-18 | 2017-12-15 | 西安交通大学 | A kind of pilot system and its test method of the passive shutdown unit of nuclear reactor |
| CN107527663A (en) * | 2017-07-18 | 2017-12-29 | 西安交通大学 | Study the visual test device of the passive shutdown unit performance of hydraulic suspension type |
| CN107301884A (en) * | 2017-07-24 | 2017-10-27 | 哈尔滨工程大学 | A kind of hybrid nuclear power station method for diagnosing faults |
| WO2019036242A1 (en) * | 2017-08-15 | 2019-02-21 | Westinghouse Electric Company Llc | Detection apparatus and method of detecting the neutron absorption capability of a control element of a nuclear installation |
| CN108695004A (en) * | 2018-05-18 | 2018-10-23 | 西安交通大学 | Waterpower buffer structure for the passive shutdown experimental provision of hydraulic suspension type |
Non-Patent Citations (2)
| Title |
|---|
| 张继革,吴元强: "《水力驱动安全棒的运动分析》", 《清华大学学报（自然科学版）》 * |
| 朱学微 等: "《中国先进研究堆安全棒驱动机构改进设计》", 《原子能科学技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114188051A (en) * | 2021-12-03 | 2022-03-15 | 中国原子能科学研究院 | Method and device for monitoring position of safety rod |
| CN114188051B (en) * | 2021-12-03 | 2024-02-20 | 中国原子能科学研究院 | Method and device for monitoring position of safety bar |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110148481B (en) | 2021-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11401927B2 (en) | Status monitoring and failure diagnosis system for plunger pump | |
| CN104236840A (en) | Vertical dropping impact test system | |
| CN107860564B (en) | A kind of flaccid state online testing device for high-voltage circuitbreaker operation spring | |
| CN104061976B (en) | A kind of hydraulic reservoir liquid level dynamic monitoring device and monitoring method | |
| CN110148481A (en) | The judgment method of reactor hydraulic safe rod drives operating status | |
| CN202305254U (en) | State monitoring and fault diagnosing system for crusher | |
| CN106546157A (en) | A kind of circuit breaker operation mechanism intelligent online monitoring device and method | |
| WO2009006927A1 (en) | Method for preventing dry running in a centrifugal pump, pump monitoring module and arrangement | |
| CN104214078B (en) | A kind of membrane pump with automatic protection functions and automatic protecting method thereof | |
| US20120298375A1 (en) | Pumpjack Production Control | |
| CN110701137A (en) | Intelligent online detection and diagnosis device and method for hydraulic system of heading machine | |
| JP2020504794A (en) | Solid particulate corrosion indicator module for valve and actuator monitoring system | |
| CN106837250A (en) | A kind of control method of down-hole linear motor Double-action reciprocating oil-well pump device | |
| CN106371979A (en) | Method, device and system for monitoring extension controller | |
| CN109173901A (en) | A kind of electromechanical equipment abends alarm control system and control method | |
| WO2024077685A1 (en) | Service life prediction method and apparatus for oil and gas fracturing pump device, and non-volatile storage medium | |
| CN2809285Y (en) | Intelligent apparatus for protecting and monitoring submerged pump with long shaft | |
| CN2809277Y (en) | Automatic monitoring device for non-seal self-priming pump | |
| CN102784802B (en) | Device and method for monitoring state of cross cardan shaft of CVC rolling mill | |
| WO2024124672A1 (en) | Fault diagnosis method for tunnel boring device and intelligent tunnel boring device | |
| DE60309734T2 (en) | IMPROVEMENTS ON DRY PUMPS | |
| RU133195U1 (en) | DEVICE FOR CONTACTLESS ACTIVE PROTECTION OF DRIVE BRAKE PUMP PUMPS | |
| CN206496727U (en) | A kind of circuit breaker operation mechanism intelligent online monitoring device | |
| CN109142109A (en) | Shaft radial load loading device | |
| CN110761896B (en) | Method for preventing engine from being overhigh in temperature |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |