CN105352976B - LNG low temperature primary and secondary tank non-destructive testing device and detection method - Google Patents
LNG low temperature primary and secondary tank non-destructive testing device and detection method Download PDFInfo
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- CN105352976B CN105352976B CN201510939690.1A CN201510939690A CN105352976B CN 105352976 B CN105352976 B CN 105352976B CN 201510939690 A CN201510939690 A CN 201510939690A CN 105352976 B CN105352976 B CN 105352976B
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- secondary tank
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- 238000001514 detection method Methods 0.000 title claims abstract description 55
- 238000009659 non-destructive testing Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 28
- 238000001931 thermography Methods 0.000 claims description 20
- 239000002737 fuel gas Substances 0.000 claims description 15
- 230000008676 import Effects 0.000 claims description 8
- 230000007547 defect Effects 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 5
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 238000011897 real-time detection Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 231100000241 scar Toxicity 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000004040 coloring Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/954—Inspecting the inner surface of hollow bodies, e.g. bores
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The present invention provides a kind of LNG low temperature primary and secondary tank non-destructive testing device and detection methods, belong to closed container detection field, detection device includes endoscope, infrared detecting device and pressure sensor, the tank body security situation of LNG low temperature primary and secondary tank can be accurately detected by infrared detection device, endoscope and closed pressure rise test, the real-time detection to primary and secondary tank is realized in the case where not can opening, detection sensitivity is higher, while not needing to open tank body in detection process and will not cause to damage to primary and secondary tank.
Description
Technical field
The present invention relates to closed container detection fields, in particular to a kind of LNG low temperature primary and secondary tank non-destructive testing device
And detection method.
Background technique
LNG primary and secondary tank, which refers to, possesses the inner canister that multiple (three or more) sub- tanks compose in parallel, to meet cryogenic liquid storage
The requirement for large capacity reservoir of standing, more sub- tanks are assembled in side by side among one large-scale outer tank (i.e. female tank).Sub- tank is usually vertical
Cylindrical shape, outer tank are that vertical flat-bottom ledge is cylinder-shaped.Due to outer tank geomery is excessive etc. not proof to external pressure and can not take out true
Sky, outer tank are normal pressure tank.
For this kind of bulky, complicated equipment, it is difficult accurately to determine defect, if but cannot find in time
Defect, crack on tank body etc., easily occur accident when in use.Generally use ultrasound examination in the prior art makes to such
The tank body made of 304 austenitic stainless steels is detected, but this detection mode suffers from the drawback that ultrasonic wave exists first
When to the detection of 304 austenitic stainless steels, sound wave will decay about 30%；And ultrasonic wave is to the material of coarse grains by grass-like clutter
Influence, be difficult accurately to determine defect, for the sub- tank of the container with a thickness of 10-12mm, wall thickness is smaller, also can using ultrasonic examination
Further decrease detection sensitivity and reliability.Detection mode also be by radiographic inspection, but in use, son
Tank can not be opened, and single wall transillumination cannot be used, excessive (sub- tank diameter is about 3800mm) according to double-walled single-throw image method focal length
Need to use large energy X-ray machine X, and in order to meet sampling observation require, need to the high altitude operation in narrow tank, operate it is very tired
It is difficult.
Summary of the invention
The present invention provides a kind of LNG low temperature primary and secondary tank non-destructive testing device and detection methods, it is intended to improve above-mentioned technology
Problem.
The present invention is implemented as follows:
A kind of LNG low temperature primary and secondary tank non-destructive testing device, comprising:
Endoscope, for protruding into primary and secondary tank the scar for detecting primary and secondary top tank structure；
Infrared detecting device, the infrared detecting device include sensor, detector, alarm and computer, the biography
With the calculating mechatronics, the sensor and detector are arranged at son for sensor, the alarm and the detector
The entrance of female tank；
Pressure sensor, the pressure sensor are arranged on the shell of primary and secondary tank, the pressure sensor and the meter
Calculate mechatronics.
The LNG low temperature primary and secondary tank non-destructive testing device that the technical program provides when in use, is not required to divide primary and secondary tank
The defects of tearing open, more apparent scar, crack on tank body detected by endoscope.Real-time online works when infrared detecting device
, detection in 24 hours may be implemented, due to being provided with multiple sub- tanks in female tank, detector is arranged in the import of primary and secondary tank
Place, no matter leakage phenomenon occurs in which sub- tank, the gas of leakage can diffuse to entrance and be detected.
Pressure sensor is mounted on the shell of primary and secondary tank, and has installation on the shell of every sub- tank, in this way when
Infrared detecting device has detected that sub- tank can be determined with when gas leakage leakage phenomenon occurs, can continue to use pressure at this time
Force snesor detects the pressure state of each sub- tank, and can distinguish is which sub- tank has damage or defect.
The method detected using above-mentioned LNG low temperature primary and secondary tank non-destructive testing device, comprising the following steps:
(1) primary and secondary tank shell is checked with the presence or absence of damage, using endoscope detection primary and secondary top tank structure with the presence or absence of damage；
(2) fuel gas and closed primary and secondary tank import are passed through into primary and secondary tank, detector detects the fuel gas of entrance
Content simultaneously transfers data to sensor and computer, is provided with threshold value in computer, when fuel gas content is more than threshold value
Between > 5s, computer control alarm equipment alarm；
(3) continue to be filled with fuel gas into the liner of primary and secondary tank, pressure sensor detection primary and secondary pressure inside the tank will simultaneously count
According to computer is passed to, computer calculates the undulating value between institute measured data and theoretical value,
The undulating value is calculated according to following manner:
It wherein, is pressure measured value, Q is fuel gas flow, and V is the volume of inner canister, and a is integral constant, and t is the time,
And t2-t1 < 1min；
The computer calculates the growth rate of undulating value, and the growth rate calculates in the following manner:
When n is timing, computer controls the alarm and warns.
Entire detection steps are divided into 3 steps, i.e. endoscope is detected a flaw, and infrared detection device has detected whether gas leakage, and presses
Force snesor examines the day static evaporation rate of container by pressure rise test, and the letter such as obtain the state of container, safe condition in turn
Breath.
In step (2), detector continuous probe in certain time length occurs to that when having gas leakage, can be determined with sub- tank
Leakage, computer controls alarm equipment alarm at this time, and controllers can take urgent measure and properly protect, and the length of time can be with
Self-setting as needed.
It is a time longer process that closed pressure rise test is carried out in step (3), in the process, entire to test
To be controlled by computer operation, and the fluctuation between actual pressure value and theoretical value is calculated in real time, when this fluctuation appearance is larger partially
Difference and when relatively large deviation continuously occur, can determine that sub- tank occurs abnormal and can accurately determine it is which sub- tank appearance
It is abnormal.Closed pressure rise test and infrared detection device can be mutually complementary detect, infrared detecting device can exist in real time
Line is detected, and closed boosting test is carried out when noting abnormalities, improves detection accuracy, accurate to determine primary and secondary tank defect source
Head.
Safety classification can also be carried out to primary and secondary tank according to the pressure data that closed pressure rise test obtains, such as, work as pressure
When fluctuating existing for the probe value of power but is little, the use at this point for primary and secondary tank can't generate biggish danger, can incite somebody to action
The security level of primary and secondary tank is assessed as 1~2 grade, if fluctuate larger, security level can be assessed as to 4~5 grades, produced
The primary and secondary tank higher for security level will be improved particularly detection density in journey, guarantee safety.
It should be noted that above-mentioned checking procedure does not represent the operation order in real process, those skilled in the art
It can be selected according to actual operation.
Further, in step (2), when fuel gas content is more than threshold time > 10s, computer controls alarm
Alarm.This threshold time, which can according to need, to be adjusted, 5s, 10s, 1min etc..
Further, in step (3), when continuing to be filled with fuel gas, the rate of rise of pressure f is no more than 0.25MPa.?
In closed pressure rise test, rate of pressure rise is too fast to be caused to damage to the tank body of primary and secondary tank, when usual summer, the growth of pressure f
Rate is no more than 0.25MPa.
When in winter, further, in step (3), when continuing to be filled with fuel gas, the rate of rise of pressure f is no more than
0.2MPa。
Further, further include the steps that carrying out primary and secondary tank infrared thermal imaging detection, the infrared thermal imaging inspection
It surveys step to carry out in the following manner: the detector of infrared thermal imaging instrument being electrically connected light-sensitive element, the light-sensitive element is electrically connected
Connect the computer；
The primary and secondary tank thermal-induced imagery that detection obtains is passed to computer by the detector of infrared thermal imaging instrument, works as primary and secondary
When the heat distribution field of tank is uneven state, computer controls alarm equipment alarm.
Infrared thermal imaging can detect the Temperature Distribution on primary and secondary tank body, high, the sensitive spy with detection accuracy
Point.The heat distribution field of primary and secondary tank is that uneven state can be judged by the colouring discrimination on infrared thermal imaging, works as calculating
When color is very big respectively in the heat distribution field for the primary and secondary tank that machine is shown, that is, it can determine that the heat distribution field of primary and secondary tank is uneven shape
State.
Further, detectivity≤0.8 DEG C of the detector of the infrared thermal imaging instrument, detectivity are got over
Small, measuring accuracy is higher.
Further, the fuel gas is methane.
Since the technology of the present invention is applied on LNG low temperature primary and secondary tank, the temperature of the detector of infrared thermal imaging instrument
Degree detection bound should be suitble to the use of primary and secondary tank.Further, the temperature detection of the detector of the infrared thermal imaging instrument
Lower limit≤- 40 DEG C.
Further, in the step (1), endoscope from the inspection hole on tank deck tube socket or primary and secondary tank protrude into tank deck into
Row detection.
The beneficial effects of the present invention are: LNG low temperature primary and secondary tank non-destructive testing device provided by the invention and detection method are logical
The safe feelings of tank body of LNG low temperature primary and secondary tank can accurately be detected by crossing infrared detection device, endoscope and closed pressure rise test
Condition realizes that detection sensitivity is higher, while not needing in detection process to the real-time detection of primary and secondary tank in the case where not can opening
It opens tank body and primary and secondary tank will not be caused to damage.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of LNG low temperature primary and secondary tank non-destructive testing device provided by the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, it is clear that described embodiment is this
Invention a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
Embodiment 1
A kind of LNG low temperature primary and secondary tank non-destructive testing device is present embodiments provided, as shown in Figure 1, LNG low temperature primary and secondary tank packet
Female tank and multiple sub- tanks are included, sub- tank is vertically provided in female tank, and heat-insulating material is provided between female tank and sub- tank, and heat-insulating material is
Pearlife.
Non-destructive testing device includes endoscope, infrared detecting device and pressure sensor, and endoscope-use is in protruding into primary and secondary tank
The scar of interior detection primary and secondary top tank structure.The infrared detecting device includes sensor, detector, alarm and computer, described
With the calculating mechatronics, the sensor and detector are arranged at for sensor, the alarm and the detector
The entrance of primary and secondary tank, the import of primary and secondary tank refers to the import of female tank, and when group tank is revealed, gas can expand toward import
It dissipates.
Pressure sensor is arranged on the sub- tank and female tank shell of primary and secondary tank, and the pressure sensor and the calculating are electromechanical
Connection.
Non-destructive testing device provided in this embodiment is performed such detection, comprising the following steps:
Primary and secondary tank shell is first checked for the presence or absence of damage, using endoscope from the inspection hole on tank deck tube socket or primary and secondary tank
It protrudes into tank deck and is detected, detection primary and secondary top tank structure is with the presence or absence of damage.
Then methane and closed primary and secondary tank import are passed through into primary and secondary tank, detector detects the methane content of entrance and will
Data are transferred to sensor and computer, threshold value are provided in computer, threshold value is a numerical value being manually set, when methane contains
When amount is more than that threshold time is more than 5s, computer then controls alarm equipment alarm, can know there is sub- tank in primary and secondary tank at this time
Leakage phenomenon.
Time, that is, threshold time of computer control alarm equipment alarm.This threshold time, which can according to need, to be adjusted,
5s, 10s, 1min etc..
Thereafter continue to be filled with methane into the liner of primary and secondary tank, when continuing to be filled with methane, the too fast possible antithetical phrase of rate of pressure rise
The tank body of female tank causes to damage, and when usual summer, the rate of rise of pressure f is no more than 0.25MPa.When in winter, the increasing of pressure f
Long rate is no more than 0.2MPa.
Pressure sensor detection primary and secondary pressure inside the tank simultaneously passes data to computer, and computer calculates institute's measured data and reason
By the undulating value between value,
Undulating value is calculated according to following manner:It wherein, is pressure measured value, Q is
Methane flow, V are the volume of inner canister, and a is integral constant, and t is the time, and t2-t1<1min；
The computer calculates the growth rate of undulating value, and the growth rate calculates in the following manner:Work as n
For timing, computer controls the alarm and warns.Entire test can be controlled by computer operation, and be calculated in real time practical
Fluctuation between pressure value and theoretical value can determine that son when relatively large deviation occurs in this fluctuation and continuously relatively large deviation occurs
Tank occurs abnormal and can accurately determine it is which sub- tank exception occurs.
Entire detection steps are divided into 3 steps, i.e. endoscope is detected a flaw, and infrared detection device has detected whether gas leakage, and presses
Force snesor examines the day static evaporation rate of container by pressure rise test, and the letter such as obtain the state of container, safe condition in turn
Breath.
Embodiment 2
Present embodiments provide a kind of LNG low temperature primary and secondary tank lossless detection method, comprising the following steps:
Primary and secondary tank shell is first checked for the presence or absence of damage, using endoscope from the inspection hole on tank deck tube socket or primary and secondary tank
It protrudes into tank deck and is detected, detection primary and secondary top tank structure is with the presence or absence of damage.
Then methane and closed primary and secondary tank import are passed through into primary and secondary tank, detector detects the methane content of entrance and will
Data are transferred to sensor and computer, threshold value are provided in computer, threshold value is a numerical value being manually set, when methane contains
When amount is more than that threshold time is more than 5s, computer then controls alarm equipment alarm, can know there is sub- tank in primary and secondary tank at this time
Leakage phenomenon.
Time, that is, threshold time of computer control alarm equipment alarm.This threshold time, which can according to need, to be adjusted,
5s, 10s, 1min etc..
Thereafter continue to be filled with methane into the liner of primary and secondary tank, when continuing to be filled with methane, the too fast possible antithetical phrase of rate of pressure rise
The tank body of female tank causes to damage, and when usual summer, the rate of rise of pressure f is no more than 0.25MPa.When in winter, the increasing of pressure f
Long rate is no more than 0.2MPa.
Pressure sensor detection primary and secondary pressure inside the tank simultaneously passes data to computer, and computer calculates institute's measured data and reason
By the undulating value between value,
Undulating value is calculated according to following manner:It wherein, is pressure measured value, Q is
Methane flow, V are the volume of inner canister, and a is integral constant, and t is the time, and t2-t1<1min；
The computer calculates the growth rate of undulating value, and the growth rate calculates in the following manner:Work as n
For timing, computer controls the alarm and warns.Entire test can be controlled by computer operation, and be calculated in real time practical
Fluctuation between pressure value and theoretical value can determine that son when relatively large deviation occurs in this fluctuation and continuously relatively large deviation occurs
Tank occurs abnormal and can accurately determine it is which sub- tank exception occurs.
Further include the steps that carrying out infrared thermal imaging detection to primary and secondary tank, mode is: by infrared thermal imaging instrument
Detector is electrically connected light-sensitive element, and the light-sensitive element is electrically connected the computer；The detector of infrared thermal imaging instrument detects
The heat distribution field of each point on primary and secondary tank.
The primary and secondary tank thermal-induced imagery that detection obtains is passed to computer, computer by the detector of infrared thermal imaging instrument
The heat distribution field of primary and secondary tank is analyzed and determined, the heat distribution field of primary and secondary tank can pass through the colouring discrimination on infrared thermal imaging
Judged, when color is very big respectively in the heat distribution field for the primary and secondary tank that Computer display goes out, that is, can determine that the heat of primary and secondary tank
Distribution field is uneven state.
When the heat distribution field of primary and secondary tank is uneven state, computer controls alarm equipment alarm.
Entire detection steps are divided into 4 steps, i.e. endoscope is detected a flaw, and thermal imaging, infrared detection device have detected whether that gas is let out
Dew, and pressure sensor examines the day static evaporation rate of container by pressure rise test, and obtains the state of container, safe shape in turn
The information such as condition.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. the method detected using LNG low temperature primary and secondary tank non-destructive testing device, which comprises the following steps:
(1) primary and secondary tank shell is checked with the presence or absence of damage, using endoscope detection primary and secondary top tank structure with the presence or absence of damage；
(2) fuel gas and closed primary and secondary tank import are passed through into primary and secondary tank, detector detects the fuel gas content of entrance
And transfer data to sensor and computer, threshold value is provided in computer, when fuel gas content be more than threshold time >
5s, computer control alarm equipment alarm；
(3) continue to be filled with fuel gas into the sub- tank of primary and secondary tank, pressure sensor detects the pressure of female tank and sub- tank in primary and secondary tank
Power simultaneously passes data to computer, and computer calculates the undulating value between institute measured data and theoretical value,
The undulating value is calculated according to following manner:
Wherein, f1For pressure measured value, Q is fuel gas flow, and V is the volume of sub- tank, and a is integral constant, and t is the time, and
t2-t1<1min；
The computer calculates the growth rate of undulating value, and the growth rate calculates in the following manner:
When n is timing, computer controls the alarm and warns；
And LNG low temperature primary and secondary tank non-destructive testing device includes endoscope, for protruding into primary and secondary tank the wound for detecting primary and secondary top tank structure
Trace；
Infrared detecting device, the infrared detecting device include sensor, detector, alarm and computer, the sensor,
The alarm and the detector are arranged at primary and secondary tank with the calculating mechatronics, the sensor and detector
Entrance；
For determining that primary and secondary tank is arranged in the presence or absence of damage or the pressure sensor of defect, the pressure sensor in sub- tank
On sub- tank and female tank shell, the pressure sensor and the calculating mechatronics.
2. LNG low temperature primary and secondary tank lossless detection method according to claim 1, which is characterized in that further include to primary and secondary tank
Tank body carry out infrared thermal imaging detection the step of, the infrared thermal imaging detecting step carries out in the following manner: by it is infrared heat at
As the detector of instrument is electrically connected light-sensitive element, the light-sensitive element electrical connection computer；
The primary and secondary tank thermal-induced imagery that detection obtains is passed to computer by the detector of infrared thermal imaging instrument, when primary and secondary tank
When heat distribution field is uneven state, computer controls alarm equipment alarm.
3. LNG low temperature primary and secondary tank lossless detection method according to claim 2, which is characterized in that the infrared thermal imaging
Detectivity≤0.8 DEG C of the detector of instrument.
4. LNG low temperature primary and secondary tank lossless detection method according to claim 1, which is characterized in that the fuel gas is
Methane.
5. LNG low temperature primary and secondary tank lossless detection method according to claim 2, which is characterized in that infrared thermal imaging instrument
Detector temperature detection lower limit be -40 DEG C.
6. LNG low temperature primary and secondary tank lossless detection method according to claim 1, which is characterized in that in the step (1),
Endoscope is protruded into tank deck from the inspection hole on tank deck tube socket or primary and secondary tank and is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510939690.1A CN105352976B (en) | 2015-12-15 | 2015-12-15 | LNG low temperature primary and secondary tank non-destructive testing device and detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510939690.1A CN105352976B (en) | 2015-12-15 | 2015-12-15 | LNG low temperature primary and secondary tank non-destructive testing device and detection method |
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| Publication Number | Publication Date |
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| CN105352976A CN105352976A (en) | 2016-02-24 |
| CN105352976B true CN105352976B (en) | 2019-05-31 |
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| CN201510939690.1A Expired - Fee Related CN105352976B (en) | 2015-12-15 | 2015-12-15 | LNG low temperature primary and secondary tank non-destructive testing device and detection method |
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| CN108827560B (en) * | 2018-05-04 | 2021-06-18 | 中国核电工程有限公司 | Method for detecting damage position of inner wall of double-wall pipe |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0440334A (en) * | 1990-06-05 | 1992-02-10 | Nkk Corp | Defect detecting method for lng tank |
| JP2002250669A (en) * | 2001-02-26 | 2002-09-06 | Mitsubishi Heavy Ind Ltd | Membrane tank and leak testing method of membrane tank |
| KR20050116935A (en) * | 2004-06-09 | 2005-12-14 | 김청균 | Integrated control and safety management system for a lng storage tank |
| CN201152856Y (en) * | 2008-02-21 | 2008-11-19 | 郑州新力光电技术有限公司 | Portable integrated electronic endoscope with camera four direction bendable |
| CN201413223Y (en) * | 2009-06-05 | 2010-02-24 | 河南省锅炉压力容器安全检测研究院 | Infrared detecting device for inflammable gas under non-air state |
| CN202393702U (en) * | 2011-09-19 | 2012-08-22 | 中国石油天然气集团公司 | Safety monitoring device of combustible gas of natural gas station |
| CN103995349A (en) * | 2014-06-12 | 2014-08-20 | 山东电力建设第一工程公司 | Searchlighting type portable endoscope |
| CN104122054A (en) * | 2014-07-27 | 2014-10-29 | 北京航星网讯技术股份有限公司 | Infrared thermal imaging type laser gas leak detection method and apparatus |
| CN104460435A (en) * | 2014-11-12 | 2015-03-25 | 杨晓东 | Intelligent remote monitoring system of liquid gas storage tank |
-
2015
- 2015-12-15 CN CN201510939690.1A patent/CN105352976B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0440334A (en) * | 1990-06-05 | 1992-02-10 | Nkk Corp | Defect detecting method for lng tank |
| JP2002250669A (en) * | 2001-02-26 | 2002-09-06 | Mitsubishi Heavy Ind Ltd | Membrane tank and leak testing method of membrane tank |
| KR20050116935A (en) * | 2004-06-09 | 2005-12-14 | 김청균 | Integrated control and safety management system for a lng storage tank |
| CN201152856Y (en) * | 2008-02-21 | 2008-11-19 | 郑州新力光电技术有限公司 | Portable integrated electronic endoscope with camera four direction bendable |
| CN201413223Y (en) * | 2009-06-05 | 2010-02-24 | 河南省锅炉压力容器安全检测研究院 | Infrared detecting device for inflammable gas under non-air state |
| CN202393702U (en) * | 2011-09-19 | 2012-08-22 | 中国石油天然气集团公司 | Safety monitoring device of combustible gas of natural gas station |
| CN103995349A (en) * | 2014-06-12 | 2014-08-20 | 山东电力建设第一工程公司 | Searchlighting type portable endoscope |
| CN104122054A (en) * | 2014-07-27 | 2014-10-29 | 北京航星网讯技术股份有限公司 | Infrared thermal imaging type laser gas leak detection method and apparatus |
| CN104460435A (en) * | 2014-11-12 | 2015-03-25 | 杨晓东 | Intelligent remote monitoring system of liquid gas storage tank |
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| CN105352976A (en) | 2016-02-24 |
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