Invention content
The present invention is directed to problems of the prior art, provides a kind of nuclear power plant's electric fireproof plugging material identification side
Method and system can really reflect availability of plugging material under the influence of nuclear power plant's composite factor, effectively improve the standard of identification
True property.
The technical solution that the present invention is proposed with regard to above-mentioned technical problem is as follows:
On the one hand, the present invention provides a kind of nuclear power plant's electric fireproof plugging material identification method, including:
S1, each pilot project of nuclear power plant's electric fireproof plugging material is divided at least one master trip and multiple bases
This experiment;
S2, the master trip is carried out to the plugging material, and institute is carried out to the plugging material after the completion master trip
There is fundamental test;The fundamental test includes air-tight test, waterproof test, strength test and fire-protecting test.
Further, the master trip includes degradation;The degradation includes radiation resistance experiment and heat ageing examination
It tests;
The step S2 is specifically included:
Plugging material is exposed into preset duration under equivalent temperature, and using the radioactive material of the preset dose confrontation envelope
Stifled material is irradiated;
If the plugging material does not have dusting, blistering, cracking, peeling, deformation or serious discoloration, to the plugging material
Carry out the test of airtight, watertight, intensity and fire protecting performance.
Further, the master trip includes corrosion resistance test;
The step S2 is specifically included:
Plugging material is placed in acid, alkali environment;
If the plugging material does not occur burn into swelling or cracking phenomena, airtight, water is carried out to the plugging material
The test of close, intensity and fire protecting performance.
Further, the master trip includes shock test;
The step S2 is specifically included:
Plugging material is placed in the environment of cable gravity and safe shutdown earthquake;
If the plugging material does not occur dusting, cracking and peeling phenomenon, airtight, water is carried out to the plugging material
The test of close, intensity and fire protecting performance.
Further, the master trip includes degradation and shock test, and the fundamental test further includes detergency ability
Experiment and anti-design basis accident DBA experiments;
The step S2 is specifically included:
Degradation is carried out to plugging material;
Shock test is carried out to the plugging material after completion degradation;
To carrying out air-tight test, waterproof test, strength test, fire protecting performance by the plugging material after shock test
Experiment, detergency ability experiment and DBA experiments.
Further, the master trip includes degradation, corrosion resistance test and shock test, and the fundamental test also wraps
Include detergency ability experiment and DBA experiments;
The step S2 is specifically included:
Degradation is carried out to plugging material;
Corrosion resistance test is carried out to the plugging material after completion degradation;
Shock test is carried out to the plugging material after completion corrosion resistance test;
To carrying out air-tight test, waterproof test, strength test, fire protecting performance by the plugging material after shock test
Experiment, detergency ability experiment and DBA experiments.
Further, the master trip further includes that drop holds experiment;
The step S2 further includes:
Drop is carried out to the plugging material after completion degradation and holds experiment.
Further, the test method of the fire-protecting test includes:
When fire occurs, increase fire prevention silicon cloth outside plugging material, and detect the plugging material in preset time model
Whether meet the requirements in enclosing;
If flame is not seen in the back of the body fire face of the plugging material, it is no more than 181 away from the Wen Sheng at the fire prevention silicon cloth 25mm
DEG C, and the plugging material is un-shifted during water slug or washes away, then judges that the plugging material meets the requirements, and completes institute
State fire-protecting test.
On the other hand, the present invention provides a kind of nuclear power plant's electric fireproof plugging material identification systems, can realize above-mentioned core
All flows of power plant electrical fire-proof sealing material identification method, nuclear power plant's electric fireproof plugging material identification systems packet
It includes:
Division module is tested, for each pilot project of nuclear power plant's electric fireproof plugging material to be divided at least one master
Experiment and multiple fundamental tests;And
Tentative module, for carrying out the master trip to the plugging material, and to the closure after the completion master trip
Material carries out all fundamental tests;The fundamental test includes air-tight test, waterproof test, strength test and fire protecting performance
Experiment.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is:
The test sequence relationship between each pilot project of nuclear power plant's electric fireproof plugging material is first established, so as to according to experiment
Sequence tests the same plugging material, completes the identification of the plugging material, to really reflect plugging material in nuclear power
Function validity in factory under composite factor effect, improves the accuracy of test;Degradation, corrosion-resistant is carried out in plugging material
After experiment, shock test, the plugging material to completing experiment carries out air-tight test, waterproof test, strength test and fire prevention
Performance test, comprehensively and accurately to be tested plugging material.
Embodiment one
An embodiment of the present invention provides a kind of nuclear power plant's electric fireproof plugging material identification methods, referring to Fig. 1, this method packet
It includes:
S1, each pilot project of nuclear power plant's electric fireproof plugging material is divided at least one master trip and multiple bases
This experiment;
S2, the master trip is carried out to the plugging material, and institute is carried out to the plugging material after the completion master trip
There is fundamental test;The fundamental test includes air-tight test, waterproof test, strength test and fire-protecting test.
It should be noted that pilot project generally comprise degradation, corrosion resistance test, shock test, air-tight test,
Waterproof test, strength test, fire-protecting test, drop hold experiment, detergency ability experiment, DBA experiment, radiation shield experiment,
The release experiment etc. of setting time experiment, electromagnetic compatibility test and toxic gas.In identification, may occur according to nuclear power plant
Most severe service formulate test sequence, to ensure that plugging material can really meet the requirement of nuclear power plant, wherein most harsh work
Condition is in the case that plugging material receives soda acid, salt air corrosion for a long time, and safe shutdown earthquake (SSE) operating mode occurs for the end of term in longevity
Afterwards, design basis accident (DBA) occurs.Therefore the sequence of fundamental test is to same after the generally first master trip of the test sequence formulated
One plugging material is tested, function validity of the identification plugging material under composite factor effect.
Wherein, the purpose of air-tight test is that plugging material can effectively obstruct flue gas when proving fire.Gas
During the acceptance criteria of tightness test is generally tested, plugging material gas-tight phenomenon under certain differential pressure action.
The purpose of waterproof test is proved when inside and outside portion's water logging occurs, and plugging material can prevent the sprawling of water.Water
During the acceptance criteria of tightness test is experiment, plugging material is under certain head differential pressure action without infiltration or leakage phenomenon.
The purpose of strength test is to prove that plugging material has certain elasticity to maintain its airtight watertight requirement.Intensity is tried
The acceptance criteria tested is that the indexs such as the tensile strength of plugging material, elongation at break comply with standard or code requirement.
In addition, the test method of the fire-protecting test includes:
When fire occurs, increase fire prevention silicon cloth outside plugging material, and detect the plugging material in preset time model
Whether meet the requirements in enclosing;
If flame is not seen in the back of the body fire face of the plugging material, it is no more than 181 away from the Wen Sheng at the fire prevention silicon cloth 25mm
DEG C, and the plugging material is un-shifted during water slug or washes away, then judges that the plugging material meets the requirements, and completes institute
State fire-protecting test.
It should be noted that the purpose of fire-protecting test is proved when fire occurs, plugging material can play fire
The isolation features of flame and temperature etc..During the acceptance criteria of fire-protecting test is experiment in the prior art, the time is being corresponded to
In range (such as 1h, 2h, 3h), the F Limit Criterias of plugging material meet the requirements (the fiery face of the back of the body not should be seen that flame), the T limit are sentenced
According to (temperature measuring point is strictly arranged in away from back of the body fire face 25mm, and back of the body fire face any point Wen Sheng is no more than 181 DEG C), the water slug of meeting the requirements
Agreement with experimental requires (plugging material will not be moved or be washed away during water slug).But fire protecting performance test request temperature measuring point is tight
Lattice are arranged at back of the body fire face 25mm, and the requirement is excessively harsh and there may be differences (in engineering with nuclear power plant practice of construction method
The comprehensive fire prevention system such as certain cladding may be used in construction for the plugging material of 3h fire resistant requirements), it will cause to meet
The plugging material of 3h fire protection requirements is difficult to complete to research and develop successfully.
Therefore, the case where this implementation column is completed for the more difficult development of plugging material for meeting 3h fire endurances, by using
The method of comprehensive fire prevention system is resolved, i.e., scene, which blocks, can be used the comprehensive fire prevention system such as fire-proof sealing material+fire prevention silicon cloth
It unites to realize the 3h insulation requests of fire, is arranged according to live fireproof blocking actual installation situation adjustment temperature measuring point and carry out correlation
Experiment, to carry out the fire protecting performance identification of fire-proof sealing material.The test method can effectively reduce 3h fire-proof sealing materials and grind
The difficulty of hair, and nuclear power plant's actual operation requirements can be met.
It is preferably carried out in mode at first, the master trip is degradation, and the degradation includes radiation resistance
Experiment and thermal aging test, the step S2 are specifically included:
Plugging material is exposed into preset duration under equivalent temperature, and using the radioactive material of the preset dose confrontation envelope
Stifled material is irradiated;
If the plugging material does not have dusting, blistering, cracking, peeling, deformation or serious discoloration, to the plugging material
Carry out the test of airtight, watertight, intensity and fire protecting performance.
It should be noted that thermal aging test proves that plugging material disclosure satisfy that user is used for the longevity in normal circumstances
The requirement of life.The acceptance criteria of thermal aging test is, experiment equivalent by the Arrhenius law progress temperature and time service life
After check the appearance of plugging material without significant change, fundamental strength test meets standard or prescribed requirement.
The purpose of radiation resistance experiment is to prove that in the case where irradiating operating mode plugging material is capable of the complete of holding structure and function
Property.The acceptance criteria of radiation resistance experiment blocks generally after possible accumulation irradiation dose radiation test in the design phase in longevity
Material is not allow for phenomena such as dusting, blistering, cracking, peeling, deformation and serious discoloration.
In the present embodiment, while thermal aging test is carried out to plugging material and radiation resistance is tested, plugging material is made to exist
The exposure sufficiently long time under equivalent temperature, and be irradiated using doses radioactive substance, plugging material is not allow for
Phenomena such as dusting, blistering, cracking, peeling, deformation and serious discoloration.On this basis, also the plugging material is carried out relevant
The test of airtight, watertight, intensity, fire protecting performance etc., to prove plugging material close to the end of term in longevity (to using the end of term in longevity
Time and dosage carry out envelope) when, remain to play the function of preventing the diffusions such as fire and flue gas.
It is preferably carried out in mode at second, the master trip is corrosion resistance test, and the step S2 is specifically included:
Plugging material is placed in acid, alkali environment;
If the plugging material does not occur burn into swelling or cracking phenomena, airtight, water is carried out to the plugging material
The test of close, intensity and fire protecting performance.
Wherein, the purpose of corrosion resistance test is to prove that plugging material can keep its complete in the corrosive environments such as acid, alkali
Whole property.Generally in the environment such as acid, alkali, plugging material burn into swelling should not occurs or open the acceptance criteria of corrosion resistance test
Phenomena such as splitting.
In the present embodiment, it will be positioned in the environment such as acid, alkali by the plugging material after degradation, visual examination
Phenomena such as burn into swelling or cracking should not occur in plugging material.On this basis, should also relevant gas be carried out to plugging material
The test of close, watertight, intensity, fire protecting performance etc., to prove after plugging material is corroded, basic performance remains to
It keeps.
It is preferably carried out in mode in third, the master trip is shock test, and the step S2 is specifically included:
Plugging material is placed in the environment of cable gravity and safe shutdown earthquake;
If the plugging material does not occur dusting, cracking and peeling phenomenon, airtight, water is carried out to the plugging material
The test of close, intensity and fire protecting performance.
Wherein, the purpose of shock test is under proving the cable gravity and earthquake the effects that, and plugging material can keep tying
The integrality of structure and function.Plugging material does not occur dusting, cracking and peeling after the acceptance criteria of shock test is generally tested
Phenomena such as.
In the present embodiment, by cable gravity and earthquake is placed in by the plugging material after corrosion resistance test the effects that
Under, phenomena such as dusting, cracking and peeling should not occur in visual examination plugging material.On this basis, also reply plugging material into
The test of the relevant airtight, watertight of row, intensity, fire protecting performance etc., to prove plugging material in vibrations fatigue or occur
After SSE, remain to play the function of preventing the diffusions such as fire and flue gas.
It is preferably carried out in mode at the 4th, the master trip includes degradation and shock test, the basic examination
Test further includes detergency ability experiment and anti-design basis accident DBA experiments;
The step S2 is specifically included:
Degradation is carried out to plugging material;
Shock test is carried out to the plugging material after completion degradation;
To carrying out air-tight test, waterproof test, strength test, fire protecting performance by the plugging material after shock test
Experiment, detergency ability experiment and DBA experiments.
It should be noted that the purpose of detergency ability experiment is that prove that plugging material can remove some conventional or with putting
The pollutant of penetrating property, while detergent is unlikely to impact plugging material again.The acceptance criteria of detergency ability experiment is general
It is the decontamination percentage of plugging material and stains sensibility and comply with standard or the requirement of specification, while only permits after using detergent
Perhaps color and luster has slight change, other aspects are unchanged.
The purpose of DBA experiments is to prove that plugging material, being capable of holding structure and functional completeness after design basis accident.
The acceptance criteria of DBA experiments is usually phenomena such as apparent discoloration, blistering, crackle, peeling do not occur for plugging material after testing.
In the present embodiment, establish degradation, shock test and air-tight test, waterproof test, strength test,
The test sequence relationship that fire-protecting test, detergency ability experiment and DBA are tested.After by degradation, shock test
Plugging material carries out fundamental test, detergency ability experiment and DBA experiments, to prove plugging material close to the end of term in longevity, and
After being given a shock fatigue or SSE occurring, basic performance remains to keep.
It being preferably carried out in mode at the 5th, the master trip includes degradation, corrosion resistance test and shock test,
The fundamental test further includes detergency ability experiment and DBA experiments;
The step S2 is specifically included:
Degradation is carried out to plugging material;
Corrosion resistance test is carried out to the plugging material after completion degradation;
Shock test is carried out to the plugging material after completion corrosion resistance test;
To carrying out air-tight test, waterproof test, strength test, fire protecting performance by the plugging material after shock test
Experiment, detergency ability experiment and DBA experiments.
It should be noted that in the present embodiment, establishing degradation, corrosion resistance test, shock test and air-tightness
The test sequence relationship that experiment, waterproof test, strength test, fire-protecting test, detergency ability experiment and DBA are tested.It will
Fundamental test, detergency ability experiment and DBA experiments are carried out by the plugging material after shock test, to prove that plugging material exists
Close to the end of term in longevity, and after being corroded and being shaken fatigue or SSE occurs, radioactive contamination eliminating is remained to, and in design basis
Holding structure and functional completeness are remained to after accident.
Further, the master trip further includes that drop holds experiment;
The step S2 further includes:
Drop is carried out to the plugging material after completion degradation and holds experiment.
It should be noted that drop, which holds experiment, is also referred to as current-carrying capacity dropping test, the purpose is to grasp plugging material to cable
The influence of current-carrying capacity.Drop hold experiment be non-judge project, mainly due to installation fire-proof sealing material after, it will influence cable dissipate
Heat, and then current-carrying capacity is impacted, measure drop data under current-carrying capacity of cable by dropping to hold to test.
In the present embodiment, it establishes first degradation and drops the test sequence relationship for holding experiment again, degradation will be passed through
Plugging material afterwards carries out drop and holds experiment, to identify plugging material influence caused by current-carrying capacity when close to the end of term in longevity.
In addition, the pilot project further includes radiation shield experiment, setting time experiment, electromagnetic compatibility test and toxic
The release experiment of gas.
In qualification process, radiation shield experiment is independently carried out to plugging material;When independently being solidified to plugging material
Between test;Electromagnetic compatibility test is independently carried out to plugging material;The release test of toxic gas is independently carried out to plugging material.
It should be noted that radiation shield experiment, setting time are tested, the release of electromagnetic compatibility test and toxic gas
Experiment is both needed to independently test plugging material, i.e., carries out spoke respectively using the completely new plugging material for not carrying out any experiment
Penetrate the release test of shield test reactor, setting time experiment, electromagnetic compatibility test and toxic gas.
Wherein, the purpose of radiation shield experiment is to prove that can plugging material play radioactivity effective shielding action.Spoke
The radiation shield function of penetrating shield test reactor mainly realized by reaching the entity of certain density, generally require plugging material density with
The density of concrete is consistent, it is believed that it is suitable with condition of equivalent thickness concrete to the shielding action of gamma-rays etc., therefore spoke
The acceptance criteria for penetrating shield test reactor is that the density of plugging material meets prescribed requirement (such as 2.4g/cm3,3.5g/cm3), at present
Mainly it is used as the acceptance basis of plugging material shielding properties by density measurement.
The purpose of electromagnetic compatibility test is the ELECTROMAGNETIC RADIATION SHIELDING effect for proving to have certain in plugging material.Electromagnetism is simultaneous
The acceptance criteria of compatibility test is that plugging material imitates the shielding of transmission power in transmitting power of equipment, environment during testing
Fruit reaches standard requirement so that equipment operation is not influenced by electromagnetic radiation, while the electromagnetic radiation that equipment room generates should not shadow
Ring the operation to other area equipments.
The purpose of the release test of toxic gas is will not be right by the gas that thermal decomposition generates after proving plugging material burning
Personnel cause to seriously affect.The acceptance criteria of the release test of toxic gas is that plugging material burns in specific environment, is generated
The toxic gases burst size such as CO, HCL comply with standard or prescribed requirement, also can observe small white mouse state by Experiment on white mice
To be evaluated.
Further, the test method of the setting time experiment includes:
Detect the solidification duration of plugging material;
If the solidification duration meets the setting time requirement of plugging material, judge that the plugging material to be tested is complete
It is tested at the setting time.
It should be noted that due to often occurring during nuclear power site operation, plugging material setting time is long to lead to shadow
Construction speed, or the series of problems such as waste of material caused by setting time short-range missile causes to solidify in plugging material mixed process are rung,
The case where being difficult to meet installation requirement for such plugging material setting time, in the present embodiment setting time test, i.e., pair
The solidification duration of plugging material is tested, it is desirable that is grasping what nuclear power in-site installation unit required plugging material setting time
On the basis of, more accurate setting time requirement is proposed to plugging material.
In order to make the test of plugging material being capable of the fully actual condition that may occur of envelope nuclear power plant and properties examination
Standard of perfection is tested, plugging material can be really embodied in the ability of this aspect, correlation need to be carried out successively for same plugging material
Experiment.It is the schematic diagram of nuclear power plant's electric fireproof plugging material identification method provided in an embodiment of the present invention, specifically referring to Fig. 2
For:Degradation is first carried out to plugging material to be tested, then to carrying out corrosion resistance test by the plugging material of degradation
Or drop holds experiment, and then to carrying out shock test by the plugging material of corrosion resistance test, finally to the envelope by shock test
Stifled material carries out air-tight test, waterproof test, strength test, fire-protecting test, detergency ability experiment, DBA experiments.Separately
Outside, it carries out radiation shield experiment respectively to plugging material to be tested, setting time experiment, electromagnetic compatibility test, have poison gas
The release test of body.
The embodiment of the present invention first establishes the test sequence relationship between each pilot project of nuclear power plant's electric fireproof plugging material,
To be tested the same plugging material according to test sequence, the identification of the plugging material is completed, to which really reflection is sealed
Function validity of the stifled material in nuclear power plant under composite factor effect, improves the accuracy of test;It is carried out in plugging material old
Change experiment, corrosion resistance test, after shock test, the plugging material to completing experiment carries out air-tight test, waterproof test, by force
Degree experiment and fire-protecting test, comprehensively and accurately to be tested plugging material.