CN112253998A - Leakage detection system of LNG sealing system - Google Patents
Leakage detection system of LNG sealing system Download PDFInfo
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- CN112253998A CN112253998A CN202010983881.9A CN202010983881A CN112253998A CN 112253998 A CN112253998 A CN 112253998A CN 202010983881 A CN202010983881 A CN 202010983881A CN 112253998 A CN112253998 A CN 112253998A
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- detection space
- nitrogen
- control module
- nitrogen generator
- barrier
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/026—Special adaptations of indicating, measuring, or monitoring equipment having the temperature as the parameter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/014—Nitrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0107—Single phase
- F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/03—Control means
- F17C2250/036—Control means using alarms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/043—Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/0465—Vibrations, e.g. of acoustic type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/03—Dealing with losses
- F17C2260/035—Dealing with losses of fluid
- F17C2260/038—Detecting leaked fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0102—Applications for fluid transport or storage on or in the water
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Examining Or Testing Airtightness (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a leakage detection system of an LNG sealing system, which comprises: the shell, inside secondary barrier thing and the secondary barrier thing inboard of being equipped with of shell is equipped with main barrier thing, type detection space between main barrier thing and the secondary barrier thing, the gas outlet that the shell left side was equipped with nitrogen generator and nitrogen generator is equipped with the connecting tube, be connected and nitrogen generator is linked together through connecting tube and detection space between connecting tube and the detection space, the detection space right side is connected with gas collection analytical equipment, nitrogen generator is connected with control module and control module internal connection has communication module and alarm device. According to the secondary barrier, the steel plates are designed into the square structure, the overall strength and the pressure resistance of the secondary barrier can be effectively improved, the square steel plates are connected through the flexible corners, the flexibility is better compared with the traditional rigid connection mode, and the deformation possibility of the secondary barrier under pressure is reduced.
Description
Technical Field
The invention relates to the technical field of ships, in particular to a leakage detection system of an LNG sealing system.
Background
The liquefied natural gas ship is called an LNG ship for short. Refers to a "ship" dedicated to the transportation of liquefied natural gas. The earliest LNG vessel was the 5100 square meter "methane bell" number in the united states in 1958, which was rebuilt with an ordinary old oil tanker. The structure form of the liquid cargo tank can be divided into an independent storage tank type and a membrane type. The former is that the storage tank with column, pot and sphere shape is put in the ship; the latter adopts double-shell structure, and the internal shell is the bearing shell of the cargo tank, and compared with the independent type, the membrane type liquefied natural gas carrier has the advantages of high volume utilization rate and light structure weight, so that the newly-built liquefied natural gas carrier is especially large-sized and mostly adopts the membrane type structure.
At present, the sealing performance of an LNG sealing system is extremely important, so that leakage detection needs to be continuously performed on the LNG sealing system, but the existing leakage detection system has the following problems: generally, a gas detection mode is adopted, gas is introduced into a detection space of a sealing system, and the tightness of the sealing system is detected through flow, but the detection precision cannot be achieved, and the detection cannot be carried out assuredly. Therefore, a new technical solution needs to be provided.
Disclosure of Invention
The invention aims to provide a leakage detection system of an LNG sealing system, which is characterized in that sufficient nitrogen is introduced into a detection space through a nitrogen generator to keep a pressure set value in the detection space, the pressure in the detection space is controlled through a pressure control valve, gas in the detection space is detected through a data acquisition unit and a leakage monitor, and the acquired data is compared and analyzed through a gas collection and analysis device, so that the sealing property in the detection space is obtained, and the actual application requirements are met.
In order to achieve the purpose, the invention provides the following technical scheme: a leak detection system for an LNG containment system, comprising: the shell, inside inferior protective screen thing and the secondary screen thing inboard of being equipped with of shell is equipped with main protective screen thing, type detection space between main protective screen thing and the secondary screen thing, the gas outlet that the shell left side was equipped with nitrogen generator and nitrogen generator is equipped with the connecting tube, be connected between connecting tube and the detection space and nitrogen generator is linked together through connecting tube and detection space, the detection space right side is connected with gaseous collection analytical equipment, nitrogen generator is connected with control module and control module internal connection has communication module and alarm device, nitrogen generator is connected with reveals watch-dog and data collection station, it includes flow monitor, nitrogen detector and vibration detection appearance to reveal the watch-dog, gaseous collection analytical equipment is connected with flow monitor, nitrogen detector and vibration detection appearance through the wire, data collection station includes temperature sensor, and, Humidity transducer and pressure sensor, temperature sensor, humidity transducer and pressure sensor all install inside the detection space.
In a preferred embodiment of the present invention, a pressure control valve is disposed on a surface of the connection pipe and connected to the control module.
In a preferred embodiment of the present invention, a solenoid valve is disposed on a surface of the pipeline between the housing and the gas collection and analysis device, and the solenoid valve is connected to the control module through a wire.
As a preferred embodiment of the present invention, the alarm device includes a warning light and a buzzer, and the warning light and the buzzer are connected to the control module through wires.
As a preferred embodiment of the present invention, the control module is connected to a storage module, and the storage module includes a hardware storage and a cloud storage.
As a preferred embodiment of the present invention, the main barrier is formed by welding common metal plates, and a main barrier unit for storing liquefied natural gas is formed inside thereof.
As a preferred embodiment of the present invention, the secondary barrier is formed by welding several sets of connectors to form a liquid-tight barrier, and the connectors may have a square, rectangular or hexagonal honeycomb structure.
In a preferred embodiment of the invention, the nitrogen generator is introduced into the detection space in an amount matched with the amount of nitrogen collected by the gas collection and analysis device.
Compared with the prior art, the invention has the following beneficial effects:
the invention introduces enough nitrogen into the detection space through the nitrogen generator to keep the pressure set value in the detection space, controls the pressure in the detection space through the pressure control valve, detects the gas in the detection space through the data collector and the leakage monitor, and compares and analyzes the collected data through the gas collecting and analyzing device, thereby obtaining the tightness in the detection space, when the internal pressure exceeds the limit value, the alarm module gives an alarm, when the leakage occurs in the monitoring space, the information of the leakage can be obtained by monitoring the nitrogen flow in the monitoring space, and the danger evaluation is carried out on the leakage.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a test flow structure according to the present invention.
In the figure, a shell-1, a secondary barrier-2, a main barrier-3, a detection space-4, a nitrogen generator-5, a connecting pipeline-6, a pressure control valve-7, an electromagnetic valve-8, a gas collecting and analyzing device-9, a control module-10, a communication module-11, an alarm device-12, a warning lamp-13, a buzzer-14, a storage module-15, a hardware storage-16, a cloud storage-17, a leakage monitor-18, a data collector-19, a temperature sensor-20, a humidity sensor-21, a pressure sensor-22, a nitrogen detector-23, a vibration detector-24 and a flow monitor-25.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a leak detection system for an LNG containment system, comprising: the shell 1, the inside secondary barrier 2 that is equipped with of shell 1 and the secondary barrier 2 inboard is equipped with main barrier 3, type detection space 4 between main barrier 3 and the secondary barrier 2, shell 1 left side is equipped with nitrogen generator 5 and the gas outlet of nitrogen generator 5 is equipped with connecting tube 6, be connected between connecting tube 6 and the detection space 4 and nitrogen generator 5 is linked together through connecting tube 6 and detection space 4, and detection space 4 that forms between main barrier 3 and the secondary barrier 2 is connected with nitrogen generator 5 through connecting tube 6, fills sufficient nitrogen gas into detection space 4 to keep the pressure stability in detection space 4, and the security when nitrogen gas has increased the detection for inert gas simultaneously, detection space 4 right side is connected with gas collection analytical equipment 9, takes out the nitrogen gas in the detection space through gas collection analytical equipment, and analyze, nitrogen generator 5 is connected with control module 10 and control module 10 internal connection has communication module 11 and alarm device 12, nitrogen generator 5 is connected with leaks watch-dog 18 and data collection station 19, it includes flow monitor 25, nitrogen gas detector 23 and vibration detector 24 to leak watch-dog 18, gas collection analytical equipment 9 is connected with flow monitor 25, nitrogen gas detector 23 and vibration detector 24 through the wire, data collection station 19 includes temperature sensor 20, humidity transducer 21 and pressure sensor 22, temperature sensor 20, humidity transducer 21 and pressure sensor 22 all install inside detection space 4, set up data collection station 19 in the detection space 4, and data collection station 19 is including temperature sensor 20, humidity transducer 21 and pressure sensor 22, through temperature sensor 20, a, The humidity sensor 21 and the pressure sensor 22 transmit the temperature, humidity and pressure data in the detection space 4 to the gas collection and analysis device 9 for analysis, the model of the pressure sensor is MS5611 type air pressure sensor, the model of the temperature sensor is HTG3500 type sensor, the model of the humidity sensor is TSD305-1C55 type sensor, the leakage monitor 18 comprises a flow monitor 25, a nitrogen detector 23 and a vibration detector 24, the nitrogen flow in the detection space 4 is monitored by the flow monitor 25, compared with a set limit value, the leakage in the detection space 4 is detected when the limit value is exceeded, the nitrogen content in the detection space 4 is detected by the nitrogen detector 23, when the nitrogen content does not reach the standard, the leakage point exists in the detection space, the model of the nitrogen detector is GT-1000-N2 type pump suction type nitrogen detector, the vibration sensor 24 is arranged to monitor the internal vibration in the detection space 4, the gas leakage has certain vibration, when the vibration exceeds a limit value, the detection space 4 leaks, when the leakage occurs, the control module 10 controls the alarm device 12 to give an alarm, and a detector judges the size of the leakage point through the nitrogen flow and carries out danger assessment at the same time.
Further improved, as shown in fig. 2: the surface of the connecting pipeline 6 is provided with a pressure control valve 7, the pressure control valve 7 is connected with the control module 10, and the pressure control valve 7 is installed at the connecting pipeline 6 and used for keeping the pressure in the detection space 4 stable.
Further improved, as shown in fig. 2: the pipeline surface between shell 1 and the gas collection and analysis device 9 is equipped with solenoid valve 8 and solenoid valve 8 is connected through between wire and the control module 10, and solenoid valve 8's setting is used for controlling the pipeline switch of gas collection and analysis device 9, conveniently controls collection and analysis device 9 to gaseous collection.
Further improved, as shown in fig. 2: alarm device 12 includes warning light 13 and buzzer 14, warning light 13 and buzzer 14 are connected with control module 10 through the wire, and alarm device 12 includes two kinds of alarm modes of warning light 13 and buzzer 14, can in time remind the detection personnel to notice.
Further improved, as shown in fig. 2: control module 10 is connected with storage module 15 and storage module 15 includes hardware storage 16 and cloud storage 17, and storage module 15 that control module 10 connects collects and saves data that data collection ware 19 and reveal watch-dog 18 detected, and convenient follow-up comparison is carried out, and storage device 15 includes cloud storage 17 and hardware storage 16 simultaneously, and two kinds of memory methods have improved the security of data.
Further improved, as shown in fig. 1: the main barrier 3 is formed by welding common metal plates, a main barrier unit for storing liquefied natural gas is formed in the main barrier 3, and the main barrier 3 is formed by welding common metal plates to form a liquid sealing barrier for storing liquefied natural gas.
Further improved, as shown in fig. 1: the secondary barrier is formed by welding a plurality of groups of connecting pieces to form a liquid sealing barrier, the connecting pieces can be of a square, rectangular or hexagonal honeycomb structure, the secondary barrier 2 is formed by welding the connecting pieces, and the structure of the connecting pieces is selected as required and can be quickly adapted to the thermal expansion of materials.
The detection space 4 formed between the main barrier 3 and the secondary barrier 2 is connected with the nitrogen generator 5 through the connecting pipeline 6, sufficient nitrogen is filled into the detection space 4 to keep the pressure in the detection space 4 stable, meanwhile, the nitrogen is inert gas to increase the safety during detection, a data collector 19 is arranged in the detection space 4, the data collector 19 comprises a temperature sensor 20, a humidity sensor 21 and a pressure sensor 22, the temperature, humidity and pressure data in the detection space 4 are transmitted to a gas collection and analysis device 9 for analysis through the temperature sensor 20, the humidity sensor 21 and the pressure sensor 22, meanwhile, the leakage monitor 18 comprises a flow monitor 25, a nitrogen detector 23 and a vibration detector 24, the nitrogen flow in the detection space 4 is monitored through the flow monitor 25 and is compared with a set limit value, exceed the limit value and then detect space 4 and reveal, nitrogen gas detector 23 examines the nitrogen gas content that detects space 4 simultaneously, when nitrogen gas content is not up to standard, explain that its inside has the leak point, vibration sensor 24 sets up the inside vibration of monitoring detection space 4, gas is revealed and is had certain vibration, when the vibration exceeds the limit value, then detect space 4 and take place to reveal, when leaking, control alarm device 12 through control module 10 and send out the police dispatch newspaper, the size of revealing the point is judged through nitrogen gas flow to the testing personnel, carry out danger assessment simultaneously.
The product protected by the scheme is put into practical production and application at present, and particularly achieves certain success in the application in the field of ships, so that the technical scheme of the product is obviously proved to be beneficial, meets social requirements, and is suitable for batch production and popularization and use.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a LNG sealing system's leakage detection system which characterized in that: the method comprises the following steps: the gas detector comprises a shell (1), wherein a secondary barrier (2) and a primary barrier (3) are arranged inside the shell (1), a type detection space (4) is formed between the primary barrier (3) and the secondary barrier (2), a nitrogen generator (5) is arranged on the left side of the shell (1), a connecting pipeline (6) is arranged at a gas outlet of the nitrogen generator (5), the connecting pipeline (6) is connected with the detection space (4), the nitrogen generator (5) is communicated with the detection space (4) through the connecting pipeline (6), a gas collection and analysis device (9) is connected to the right side of the detection space (4), the nitrogen generator (5) is connected with a control module (10), a communication module (11) and an alarm device (12) are connected inside the control module (10), a leakage monitor (18) and a data collector (19) are connected to the nitrogen generator (5), leak monitor (18) and include flow monitor (25), nitrogen gas detector (23) and vibration detector (24), gas collection analytical equipment (9) are connected with flow monitor (25), nitrogen gas detector (23) and vibration detector (24) through the wire, data collection station (19) include temperature sensor (20), humidity transducer (21) and pressure sensor (22), temperature sensor (20), humidity transducer (21) and pressure sensor (22) are all installed inside detection space (4).
2. A leak detection system for an LNG containment system according to claim 1, characterized in that: the surface of the connecting pipeline (6) is provided with a pressure control valve (7), and the pressure control valve (7) is connected with the control module (10).
3. A leak detection system for an LNG containment system according to claim 2, characterized in that: the pipeline surface between the shell (1) and the gas collection and analysis device (9) is provided with an electromagnetic valve (8), and the electromagnetic valve (8) is connected with the control module (10) through a lead.
4. A leak detection system for an LNG containment system according to claim 3, characterized in that: the alarm device (12) comprises a warning lamp (13) and a buzzer (14), wherein the warning lamp (13) and the buzzer (14) are connected with the control module (10) through leads.
5. A leak detection system for an LNG containment system according to claim 4, characterized in that: the control module (10) is connected with a storage module (15), and the storage module (15) comprises a hardware storage (16) and a cloud storage (17).
6. A leak detection system for an LNG containment system according to claim 1, characterized in that: the main barrier (3) is formed by welding common metal plates, and a main barrier unit for storing liquefied natural gas is formed inside the main barrier.
7. A leak detection system for an LNG containment system according to claim 1, characterized in that: the secondary barrier (2) is formed by welding a plurality of groups of connecting pieces to form the liquid-tight barrier, and the connecting pieces can be of a square, rectangular or hexagonal honeycomb structure.
8. A leak detection system for an LNG containment system according to claim 1, characterized in that: the nitrogen amount of the nitrogen generator (5) introduced into the detection space (4) is matched with the nitrogen amount collected by the gas collection and analysis device (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010983881.9A CN112253998A (en) | 2020-09-18 | 2020-09-18 | Leakage detection system of LNG sealing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010983881.9A CN112253998A (en) | 2020-09-18 | 2020-09-18 | Leakage detection system of LNG sealing system |
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| Publication Number | Publication Date |
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| CN112253998A true CN112253998A (en) | 2021-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010983881.9A Pending CN112253998A (en) | 2020-09-18 | 2020-09-18 | Leakage detection system of LNG sealing system |
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| CN (1) | CN112253998A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115628398A (en) * | 2022-09-21 | 2023-01-20 | 沪东中华造船(集团)有限公司 | Main shielding leakage flow guide system and method for B-type enclosure system |
| CN118361664A (en) * | 2024-06-17 | 2024-07-19 | 江苏扬子鑫福造船有限公司 | Marine methanol fuel filling system and filling method thereof |
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| EP0615120A2 (en) * | 1993-03-09 | 1994-09-14 | Dynamit Nobel Aktiengesellschaft | Leak control of a gas or liquid gas container |
| CN103717960A (en) * | 2011-08-05 | 2014-04-09 | 金学星 | Pressure-resistant-container gas leakage detecting device for a vehicle to which a discharge tube casing is attached |
| CN206831181U (en) * | 2017-04-27 | 2018-01-02 | 西安工程大学 | A kind of device for being used to detect air-jet loom compressed air leakage |
| CN206945244U (en) * | 2017-08-01 | 2018-01-30 | 赵树权 | A kind of pressure vessel leak detection systems |
| CN209014209U (en) * | 2018-11-30 | 2019-06-21 | 江南造船(集团)有限责任公司 | The leak detection system of cargo tank |
| CN111399572A (en) * | 2020-04-01 | 2020-07-10 | 江南造船(集团)有限责任公司 | Environmental control system and method for subsidiary places of B-type liquid cargo tank |
-
2020
- 2020-09-18 CN CN202010983881.9A patent/CN112253998A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0615120A2 (en) * | 1993-03-09 | 1994-09-14 | Dynamit Nobel Aktiengesellschaft | Leak control of a gas or liquid gas container |
| CN103717960A (en) * | 2011-08-05 | 2014-04-09 | 金学星 | Pressure-resistant-container gas leakage detecting device for a vehicle to which a discharge tube casing is attached |
| CN206831181U (en) * | 2017-04-27 | 2018-01-02 | 西安工程大学 | A kind of device for being used to detect air-jet loom compressed air leakage |
| CN206945244U (en) * | 2017-08-01 | 2018-01-30 | 赵树权 | A kind of pressure vessel leak detection systems |
| CN209014209U (en) * | 2018-11-30 | 2019-06-21 | 江南造船(集团)有限责任公司 | The leak detection system of cargo tank |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115628398A (en) * | 2022-09-21 | 2023-01-20 | 沪东中华造船(集团)有限公司 | Main shielding leakage flow guide system and method for B-type enclosure system |
| CN115628398B (en) * | 2022-09-21 | 2024-05-14 | 沪东中华造船(集团)有限公司 | Main shielding leakage flow guiding system and method for B-type containment system |
| CN118361664A (en) * | 2024-06-17 | 2024-07-19 | 江苏扬子鑫福造船有限公司 | Marine methanol fuel filling system and filling method thereof |
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Application publication date: 20210122 |
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