CN109946957A - A kind of loading and unloading weight protective device - Google Patents
A kind of loading and unloading weight protective device Download PDFInfo
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- CN109946957A CN109946957A CN201910253123.9A CN201910253123A CN109946957A CN 109946957 A CN109946957 A CN 109946957A CN 201910253123 A CN201910253123 A CN 201910253123A CN 109946957 A CN109946957 A CN 109946957A
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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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Abstract
The invention belongs to nuclear power unit loading and unloading technical fields, and in particular to a kind of loading and unloading weight protective device.In the present invention, 24V power module provides the power supply of redundancy to signal conversion module one, signal conversion module two, signal comparison module one, signal conversion module three, signal conversion module four, signal comparison module two, channel conversion module；Signal conversion module one, signal conversion module two transmit signal to signal comparison module one, signal conversion module three, signal conversion module four-way signal comparison module two transmit signal, and signal comparison module one, signal comparison module two transmit a signal to channel conversion module.The present invention maintainable and adaptability with higher, improves the safety and reliability of nuclear power station material-loading/unloading operating process, and safety of the fuel assembly in the case where high speed is loaded and unloaded can be effectively ensured.
Description
Technical field
The invention belongs to nuclear power unit loading and unloading technical fields, and in particular to a kind of loading and unloading weight protective device.
Background technique
WWER type nuclear power unit loads and unloads fuel assembly using fuel manipulator crane, and what is do not allowed when extracting or assigning rubs
Wiping power will cause the damage of fuel assembly.Fuel manipulator crane control system uses digital redundant control mode, in controller
Relay protective scheme operation is carried out to weight measurement and setting value, when the difference of weight measurement and setting value is more than limit value, is protected
Stoppage in transit driving mechanism is protected, achievees the purpose that avoid fuel assembly friction damaged.
With the progress of fuel assembly manufacturing technology, the New-type fuel component of WWER type nuclear power unit can bear higher
Handling speed: by core baffle, handling speed is promoted by 2m/min to 4m/min；When periphery is New-type fuel component, dress
Speed is unloaded to be promoted by 0.6m/min to 1.2m/min.
The high speed handling of fuel assembly can effectively improve the efficiency of loading and unloading, shorten the overhaul life, it is therefore necessary to set
It counts that a kind of redundancy is reliable, response more rapid novel fuel manipulator crane weight protective device, guarantees that fuel assembly is loaded and unloaded in high speed
Under safety.
Summary of the invention
Present invention solves the technical problem that:
The present invention provides a kind of loading and unloading weight protective device, and maintainable and adaptability with higher improves core
Safety of the fuel assembly in the case where high speed is loaded and unloaded can be effectively ensured in the safety and reliability of power station loading and unloading operating process.
The technical solution adopted by the present invention:
A kind of loading and unloading weight protective device, including signal conversion module one, signal conversion module two, signal comparison module
One, 24V power module, signal conversion module three, signal conversion module four, signal comparison module two, channel conversion module.
The 24V power module turns to signal conversion module one, signal conversion module two, signal comparison module one, signal
Block three, signal conversion module four, signal comparison module two are changed the mold, channel conversion module provides the power supply of redundancy；Signal modulus of conversion
Block one, signal conversion module two transmit signal, signal conversion module three, signal conversion module four-way letter to signal comparison module one
Number comparison module two transmits signal, and signal comparison module one, signal comparison module two transmit a signal to channel conversion module.
One is protected the weight protection signal in channel to be converted to 0-10V by the signal conversion module one, and 0-10V is believed
Number it is sent to signal comparison module one；The weight measurement signals in one channel are converted to 0-10V by signal conversion module two, and by 0-
10V signal is sent to signal comparison module one.
It is poor that the signal comparison module one carries out the signal of signal conversion module one and the signal of signal conversion module two
It is worth operation, when the difference compared is more than limit value, exports dry Node Protection signal.
The weight protection signal in another protection channel is converted to 0-10V signal by the signal conversion module three, and will
Signal is sent to signal comparison module two；The weight measurement signals in one channel are converted to 0-10V by signal conversion module four；And it will
Signal is sent to signal comparison module two.
It is poor that the signal comparison module two carries out the signal of signal conversion module three and the signal of signal conversion module four
It is worth operation, when the difference compared is more than limit value, exports dry Node Protection signal.
Described two redundant channel protection signals carry out parallel connection in the conversion module of channel, realize that two take one protection defeated
Out；Channel conversion module also has the function of channel selecting, and there are three options altogether: two redundant channels simultaneously participate in protection, single-pass
Road participates in protection, and binary channels is all not involved in protection.
Beneficial effects of the present invention:
(1) it provides a kind of Redundancy Design, respond rapidly novel fuel manipulator crane weight protective device, ensure that fuel stack
Safety of the part under high speed situation of the loading and unloading, improves the efficiency of loading and unloading, has saved the overhaul main line time.
(2) channel conversion module is used, single-pass pipe protection (one takes one), bilateral pipe protection (two take one), side are provided
Three kinds of protected modes are protected on road, flexible in application, adaptable, convenient for promoting and safeguarding.
(3) present invention has the characteristics that binary-channel redundancy design, modularized design, can effectively improve the reliable of weight protection
Property, maintainability and response speed, it is ensured that the safety of loading and unloading operating process.
(4) verifying reloaded by 6 overhauls sufficiently proves that the present invention has rational design, reliable for operation.
(5) due to realize production domesticization, so that spares provisioning is obtained effective guarantee, further improve loading and unloading operation can
By property.
(6) present invention can meet the technical need of other system equipments by improving, to have preferable generalization.
Detailed description of the invention
Fig. 1 is a kind of loading and unloading weight protective device schematic diagram provided by the invention；
In figure: 1 be signal conversion module one, 2 be signal conversion module two, 3 be signal comparison module one, 4 is 24V power supply
Module, 5 be signal conversion module three, 6 be signal conversion module four, 7 are signal comparison module two, and 8 be channel conversion module.
Specific embodiment
It is further to a kind of loading and unloading weight protective device work provided by the invention in the following with reference to the drawings and specific embodiments
It is described in detail.
As shown in Figure 1, a kind of loading and unloading weight protective device provided by the invention, including signal conversion module 1, signal
Conversion module 22, signal comparison module 1,24V power module 4, signal conversion module 35, signal conversion module 46, signal
Comparison module 27, channel conversion module 8；
24V power module 4 turns to signal conversion module 1, signal conversion module 22, signal comparison module 1, signal
Block 35, signal conversion module 46, signal comparison module 27 are changed the mold, channel conversion module 8 provides the 24V power supply of redundancy；Signal
Conversion module 1, signal conversion module 22 transmit signal, signal conversion module 35, signal conversion to signal comparison module 1
Module 46 transmits signal to signal comparison module 27, and signal comparison module 1, signal comparison module 27 transmit a signal to
Channel conversion module 8.
One is protected the weight protection signal in channel to be converted to 0-10V by signal conversion module 1, and 0-10 signal is sent
To signal comparison module 1；The weight measurement signals in one channel are converted to 0-10V by signal conversion module 22, and by 0-
10V signal is sent to signal comparison module 1；
The signal of signal conversion module 1 and the signal of signal conversion module 22 are carried out difference by signal comparison module 1
Operation exports dry Node Protection signal when the difference compared is more than limit value.
The weight protection signal in another protection channel is converted to 0-10V signal by signal conversion module 35, and by signal
It is sent to signal comparison module 27；The weight measurement signals in one channel are converted to 0-10V by signal conversion module 46.And it will letter
Number it is sent to signal comparison module 27.
The signal of signal conversion module 35 and the signal of signal conversion module 46 are carried out difference by signal comparison module 27
Operation exports dry Node Protection signal when the difference compared is more than limit value.
Two redundant channel protection signals carry out parallel connection in channel conversion module 8, realize that two take one protection to export.It is logical
Road conversion module 8 also has the function of channel selecting, and there are three options altogether: two redundant channels simultaneously participate in protection, single channel ginseng
With protection, binary channels is all not involved in protection.
Claims (7)
1. a kind of loading and unloading weight protective device, it is characterised in that: including signal conversion module one (1), signal conversion module two
(2), signal comparison module one (3), 24V power module (4), signal conversion module three (5), signal conversion module four (6), signal
Comparison module two (7), channel conversion module (8).
2. a kind of loading and unloading weight protective device according to claim 1, it is characterised in that: the 24V power module (4)
To signal conversion module one (1), signal conversion module two (2), signal comparison module one (3), signal conversion module three (5), letter
Number conversion module four (6), signal comparison module two (7), channel conversion module (8) provide the power supply of redundancy；Signal conversion module
One (1), signal conversion module two (2) transmit signal, signal conversion module three (5), signal conversion to signal comparison module one (3)
Module four (6) transmits signal to signal comparison module two (7), and signal comparison module one (3), signal comparison module two (7) will be believed
Number send channel conversion module (8) to.
3. a kind of loading and unloading weight protective device according to claim 2, it is characterised in that: the signal conversion module one
(1) it protects the weight protection signal in channel to be converted to 0-10V for one, and 0-10V signal is sent to signal comparison module one
(3)；The weight measurement signals in one channel are converted to 0-10V by signal conversion module two (2), and 0-10V signal is sent to letter
Number comparison module one (3).
4. a kind of loading and unloading weight protective device according to claim 3, it is characterised in that: the signal comparison module one
(3) signal of signal conversion module one (1) and the signal of signal conversion module two (2) are carried out difference operation, when the difference compared
When value is more than limit value, dry Node Protection signal is exported.
5. a kind of loading and unloading weight protective device according to claim 4, it is characterised in that: the signal conversion module three
(5) the weight protection signal in another protection channel is converted into 0-10V signal, and signal is sent to signal comparison module two
(7)；The weight measurement signals in one channel are converted to 0-10V by signal conversion module four (6)；And signal is sent to signal and is compared
Module two (7).
6. a kind of loading and unloading weight protective device according to claim 5, it is characterised in that: the signal comparison module two
(7) signal of signal conversion module three (5) and the signal of signal conversion module four (6) are carried out difference operation, when the difference compared
When value is more than limit value, dry Node Protection signal is exported.
7. a kind of loading and unloading weight protective device according to claim 6, it is characterised in that: described two redundant channels are protected
It protects signal and carries out parallel connection in channel conversion module (8), realize that two take one protection to export；Channel conversion module (8) also has
Channel selecting function, there are three options altogether: two redundant channels simultaneously participate in protection, and single channel participates in protection, and binary channels is not
Participate in protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910253123.9A CN109946957A (en) | 2019-03-29 | 2019-03-29 | A kind of loading and unloading weight protective device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910253123.9A CN109946957A (en) | 2019-03-29 | 2019-03-29 | A kind of loading and unloading weight protective device |
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| CN109946957A true CN109946957A (en) | 2019-06-28 |
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| CN201910253123.9A Pending CN109946957A (en) | 2019-03-29 | 2019-03-29 | A kind of loading and unloading weight protective device |
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