CN107477361B - Combined rupture disc safety device for high-pressure natural gas long tube trailer and application method thereof - Google Patents
Combined rupture disc safety device for high-pressure natural gas long tube trailer and application method thereof Download PDFInfo
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- CN107477361B CN107477361B CN201611036659.8A CN201611036659A CN107477361B CN 107477361 B CN107477361 B CN 107477361B CN 201611036659 A CN201611036659 A CN 201611036659A CN 107477361 B CN107477361 B CN 107477361B
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- tube trailer
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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
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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
- F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
- F17C13/123—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for gas bottles, cylinders or reservoirs for tank vehicles or for railway tank wagons
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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
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
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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
- 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
- F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
- F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
- F17C2225/035—High pressure, i.e. between 10 and 80 bars
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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
-
- 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
- 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
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0165—Applications for fluid transport or storage on the road
- F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Emergency Alarm Devices (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention provides a combined rupture disk safety device for a high-pressure natural gas long tube trailer and application thereof, and belongs to the technical field of safety and explosion prevention of high-pressure gas cylinders with flammable and explosive media. The combined rupture disc safety device for the high-pressure natural gas long tube trailer comprises a combined rupture disc holder, a pressure sensor, an intelligent controller, a wireless transceiver module, a mobile receiving end and a long tube trailer mobile safety monitoring platform, wherein the intelligent controller is connected with the pressure sensor and comprises a data acquisition module, a data storage module and a data processing module, and the intelligent controller is used for processing information of pressure parameters in the holder and then sending the processed information to the long tube trailer mobile safety detection platform. The invention not only avoids the high risk of single-layer rupture disk, but also avoids the potential safety hazard existing in the fuse device adopting the rupture disk, and the safety of the device is greatly improved by monitoring the new device in real time.
Description
Technical Field
The invention belongs to the technical field of safety explosion prevention of high-pressure gas cylinders with inflammable and explosive mediums, and particularly relates to a combined rupture disk safety device for a high-pressure natural gas long tube trailer and an application method thereof.
Background
With the increasing use of gases such as Compressed Natural Gas (CNG), gas transportation across distances is becoming increasingly important. Currently, long tube trailers are used for transporting compressed natural gas in the world. The long tube trailer is a transport means for transporting compressed gas by assembling several or more than ten large-volume steel seamless gas cylinders in a frame and fixing the seamless gas cylinders on a chassis of the automobile trailer and communicating the heads of the gas cylinders together. Compared with pipeline transportation, the long pipe trailer has wider transportation range, various transportation mediums and low construction cost; compared with the traditional small gas cylinder transportation, the long pipe trailer has the advantages of high gas cylinder bearing pressure, large volume, improved transportation efficiency and reduced transportation cost. The maintenance of long tube trailers has grown in size due to various advantages.
Because of the frequent movement of the long tube trailer and the repeated filling in the use process, the storage medium has the characteristics of high pressure, inflammability, explosiveness and the like, and the safety performance of the long tube trailer is of great concern. In order to ensure transportation safety, safety relief devices are arranged at the front end and the rear end of each gas cylinder of the long tube trailer. The safety relief device can relieve the pressure of the gas cylinder when the long tube trailer catches fire or other dangerous conditions causing abrupt pressure rise, thereby ensuring the safety of the gas cylinder of the long tube trailer.
At present, a single rupture disc device and a rupture disc-fusible plug combined device are mainly used for a long tube trailer gas cylinder. Both rupture disk devices have respective potential safety hazards and unreliable service performance.
The single rupture disk device has the advantages of simple device, rapid movement of the rupture disk and the like, and is widely applied to a long pipe trailer. However, the single rupture disc device has the following problems in the actual use process: in the using and filling process of the gas cylinder, the rupture disk bears repeated alternating load action, and the rupture disk can crack or act in advance due to fatigue damage to generate leakage, so that the gas is discharged in advance; the rupture disk is damaged due to the influence of severe environments such as rainwater, ice and snow or dust or internal corrosive media, so that the service life is shortened; and the rupture disk itself has limited life, must change the rupture disk regularly just can continue to use. The safety problem resulting from failure of a single burst disk device is quite serious.
The other burst disc-fusible plug combined device is formed by connecting a burst disc and a fusible plug in series, and is used as a safety release device of a long tube trailer. Compared with a single rupture disc device, the device avoids misoperation phenomenon caused by unstable rupture disc performance, improves the reliability of the safety relief device, and is a device widely applied to the conventional relief device of a long tube trailer. However, the rupture disc-fusible plug combination device has the following problems in actual use: under the condition of local fire, the temperature of the rupture disc-fusible plug combined device at the end part of the long gas cylinder can not reach the melting temperature of the fusible plug, the bursting pressure of the rupture disc far exceeds the set bursting pressure, and the setting of the fusible plug can not reach the functional requirement; in the normal use process, when the rupture disc acts in advance due to fatigue or other reasons, a user cannot timely detect and replace the rupture disc, and the usability of the rupture disc-fusible plug combined device is affected; under the condition of physical overpressure, the fusible plug can not be completely extruded, and the bleeding is prevented from causing frostbite of surrounding pipe fittings; under the condition of physical overpressure, the fusible plug can not melt and extrude with huge energy, and secondary injury is generated. The problems are that the potential safety hazard exists in the production process, and the accident result is difficult to measure once the accident occurs.
Disclosure of Invention
Based on the actual problems, the invention provides a combined rupture disc safety device for a high-pressure natural gas long tube trailer and an application method thereof.
The technical scheme of the invention is as follows:
the combined rupture disc safety device for the high-pressure natural gas long tube trailer is characterized by comprising a combined rupture disc clamp holder, a pressure sensor, an intelligent controller with a wireless receiving and transmitting module and a mobile safety monitoring platform; the combined rupture disc holder is sequentially connected with the pressure sensor and the intelligent controller, the intelligent controller comprises a data acquisition module and a data processing module, and the intelligent controller is used for sending pressure parameter information with the inside of the holder to the movable safety detection platform of the long tube trailer by using the wireless transceiver module.
The combined rupture disc holder comprises a lower holder, a lower pressing ring, an upper holder and a protective cover, wherein a lower-layer rupture disc is arranged between the lower holder and the lower pressing ring, and an upper-layer rupture disc is arranged between the lower pressing ring and the upper pressing ring.
Further, a leakage annular groove is formed in the side face of the lower pressing ring, a leakage detection hole is formed in the position, corresponding to the side wall of the lower clamp holder, of the annular groove, and threads connected with the pressure sensor are arranged in the leakage detection hole.
Further, the radius of the leakage annular groove is 0.5-1.0 mm, and the height of the lower pressing ring is larger than or equal to 0.9 times of the inner diameter of the lower pressing ring.
Further, the lower layer rupture disk is an inverted arch notch type rupture disk, and the upper layer rupture disk can be a front arch or an inverted arch type rupture disk.
The pressure sensor is arranged outside the lower clamp of the combined rupture disc clamp and connected through threads.
And the wireless module transmits the processed parameter information to a mobile safety monitoring platform of the long tube trailer in real time.
The movable safety monitoring platform of the long tube trailer comprises a monitoring module of the long tube trailer under a safety working condition and an alarm module when a parameter index of the long tube trailer under an abnormal working condition exceeds a preset threshold value.
The invention also provides an application method of the combined rupture disk safety device for the high-pressure natural gas long tube trailer, which comprises the following steps: after the lower layer rupture disk 6 in the holder 1 is detonated, the pressure sensor 2 transmits a pressure signal to the intelligent controller 3, and after the intelligent controller 3 performs a data acquisition module, a data storage module and a data processing module, alarm information is transmitted to the mobile safety monitoring platform 4 through wireless Bluetooth to remind a user that the lower layer blasting is exploded and replaced in time; after the lower layer rupture disk 6 and the upper layer rupture disk 9 in the holder 1 are detonated successively, the pressure sensor 2 transmits a pressure signal to the intelligent controller 3, and after the intelligent controller 3 performs a data acquisition module, a data storage module and a data processing module, alarm information is transmitted to the mobile safety monitoring platform 4 through wireless Bluetooth, so that a user is reminded of opening a safety device and timely measures are taken for processing.
The mobile safety monitoring platform comprises a monitoring module of the long tube trailer under a safety working condition and an alarm module when a parameter index of the long tube trailer under an abnormal working condition exceeds a preset threshold value.
The beneficial technical effects of the invention are as follows:
according to the combined rupture disk safety device for the high-pressure natural gas long pipe trailer and the application thereof, the technical scheme is adopted, so that the problem of early blasting caused by fatigue or corrosion of a single rupture disk device is solved, and the safety performance of the device is improved; the lower layer rupture disc can be transmitted to a safety monitoring platform through a sensor after being blasted, and a mobile receiving end receives a warning signal to remind the user to replace the lower layer rupture disc in time; and the intelligent control technology is adopted to monitor and manage the safety device in real time, and effectively manage the safety of the gas cylinder of the high-pressure natural gas long tube trailer, thereby greatly improving the safety of the device.
Drawings
FIG. 1 is a schematic view of a combined burst disk safety device.
Fig. 2 is a view of a combined rupture disc safety device holder.
Fig. 3 is a schematic view of the structure of the lower pressure ring of the combined rupture disc safety device.
Fig. 4 is a schematic diagram of a combination burst disk safety device.
In the figure: the device comprises a 1-clamp, a 2-pressure sensor, a 3-intelligent controller, a 4-movable safety monitoring platform, a 5-lower clamp, a 6-lower layer rupture disk, a 7-lower pressure ring, an 8-red copper gasket, a 9-upper layer rupture disk, a 10-upper pressure ring, an 11-upper clamp, a 12-rainproof gasket and a 13-protective cover.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description
As shown in fig. 1, a rupture disk safety device for a high-pressure natural gas long pipe trailer comprises a holder 1, a pressure sensor 2, an intelligent controller 3 containing a wireless bluetooth module and a mobile safety monitoring platform 4, wherein the pressure sensor 2 is connected with the holder 1 by using threads, the intelligent controller 3 is connected with the pressure sensor 2, and the intelligent controller 3 is connected with the mobile safety monitoring platform 4 by using a wireless bluetooth technology.
As shown in fig. 2, the combined rupture disc holder comprises a lower holder 5, a lower layer rupture disc 6, a lower pressure ring 7, a red copper gasket 8, an upper layer rupture disc 9, an upper pressure ring 10, an upper holder 11, a rain-proof gasket 12 and a protective cover 13, wherein the lower layer rupture disc 6 is arranged between the lower holder 5 and the lower pressure ring 7, the seal is tightly pressed and sealed by the red copper gasket 8, the lower layer rupture disc 6 is an inverted arch notch type rupture disc, the fatigue resistance performance is superior to that of a positive arch type rupture disc and is opened without fragments, the height of the lower pressure ring 7 is greater than or equal to 0.9 times of the inner diameter of the lower pressure ring 7, the upper layer rupture disc 9 is a positive arch type rupture disc, the bursting pressure of the upper layer rupture disc 9 is greater than or equal to the pressure of the lower layer rupture disc 6, the lower pressure ring 7 is provided with an annular groove, a leakage detection hole is arranged at a position corresponding to the side wall of the lower holder 5, the leakage detection hole is provided with threads connected with a pressure sensor 2, the protective cover 13 is polytetrafluoroethylene, the pressure sensor is prevented from being connected with the outer side of the holder 5, and the combined rupture disc is arranged outside the pressure sensor 2.
As shown in fig. 3, the side surface of the lower pressure ring 7 of the combined rupture disc is provided with a leakage annular groove, the radius of the leakage annular groove is 0.5-1.0 mm, and the height of the lower pressure ring is greater than or equal to 0.9 times of the inner diameter of the lower pressure ring.
As shown in fig. 4, after the lower layer rupture disk 6 in the holder 1 is detonated, the pressure sensor 2 transmits a pressure signal to the intelligent controller 3, and after the intelligent controller 3 performs a data acquisition module, a data storage module and a data processing module, the intelligent controller transmits alarm information to the mobile safety monitoring platform 4 through wireless bluetooth to remind a user that the lower layer blasting has been performed, and the lower layer blasting is replaced in time; after the lower layer rupture disk 6 and the upper layer rupture disk 9 in the holder 1 are detonated successively, the pressure sensor 2 transmits a pressure signal to the intelligent controller 3, and after the intelligent controller 3 performs a data acquisition module, a data storage module and a data processing module, alarm information is transmitted to the mobile safety monitoring platform 4 through wireless Bluetooth, so that a user is reminded of opening a safety device and timely measures are taken for processing.
While the invention has been described with reference to the preferred embodiments, it should be understood that the invention is not limited to the embodiments described above, but is intended to cover modifications, substitutions and alternatives falling within the spirit and scope of the invention.
Claims (3)
1. The combined rupture disc safety device for the high-pressure natural gas long tube trailer is characterized by comprising a combined rupture disc holder (1), a pressure sensor (2), an intelligent controller (3) with a wireless transceiver module and a mobile safety monitoring platform (4), wherein the combined rupture disc holder (1) is sequentially connected with the pressure sensor (2) and the intelligent controller (3), the intelligent controller (3) comprises a data acquisition module and a data processing module, and the intelligent controller (3) is used for transmitting pressure parameter information with the inside of the holder to the mobile safety monitoring platform (4) of the long tube trailer by using the wireless transceiver module; the combined rupture disc holder comprises a lower holder (5), a lower pressing ring (7), an upper pressing ring (10), an upper holder (11) and a protective cover (13), wherein a lower-layer rupture disc (6) is arranged between the lower holder (5) and the lower pressing ring (7), and an upper-layer rupture disc (9) is arranged between the lower pressing ring (7) and the upper pressing ring (10); the lower layer rupture disc is an inverted arch notch type rupture disc, and the upper layer rupture disc is an inverted arch notch type rupture disc or an inverted arch notch type rupture disc;
the side surface of the lower pressing ring (7) is provided with a leakage annular groove, a leakage detection hole is arranged at a position corresponding to the side wall of the lower clamp holder (5), and the leakage detection hole is provided with threads connected with the pressure sensor (2);
the wireless transceiver module transmits the processed parameter information to a mobile safety monitoring platform of the long tube trailer in real time;
the movable safety monitoring platform of the long tube trailer comprises a monitoring module of the long tube trailer under a safety working condition and an alarm module when a parameter index of the long tube trailer under an abnormal working condition exceeds a preset threshold value;
the application method of the combined rupture disk safety device for the high-pressure natural gas long tube trailer comprises the following steps of: after the lower layer rupture disc (6) in the combined rupture disc holder (1) is detonated, the pressure sensor (2) transmits a pressure signal to the intelligent controller (3), and after the intelligent controller (3) performs data acquisition, data storage and data processing, alarm information is transmitted to the mobile safety monitoring platform (4) through wireless Bluetooth to remind a user that the lower layer rupture disc is blasted and replaced in time; after the lower layer rupture disk (6) and the upper layer rupture disk (9) in the combined rupture disk holder (1) are detonated successively, the pressure sensor (2) transmits a pressure signal to the intelligent controller (3), and the intelligent controller (3) performs data acquisition, data storage and data processing, then transmits alarm information to the mobile safety monitoring platform (4) through wireless Bluetooth, and reminds a user that the safety device is opened and timely takes measures for processing.
2. The combination burst disk safety device for a high pressure natural gas tube trailer of claim 1, wherein: the radius of the leakage annular groove is 0.5-1.0 mm, and the height of the lower pressure ring is greater than or equal to 0.9 times of the inner diameter of the lower pressure ring.
3. The combination burst disk safety device for a high pressure natural gas tube trailer of claim 1, wherein: the pressure sensor is arranged on the outer side of the lower clamp holder of the combined rupture disc clamp holder and is connected with the lower clamp holder through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611036659.8A CN107477361B (en) | 2016-11-23 | 2016-11-23 | Combined rupture disc safety device for high-pressure natural gas long tube trailer and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611036659.8A CN107477361B (en) | 2016-11-23 | 2016-11-23 | Combined rupture disc safety device for high-pressure natural gas long tube trailer and application method thereof |
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| Publication Number | Publication Date |
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| CN107477361A CN107477361A (en) | 2017-12-15 |
| CN107477361B true CN107477361B (en) | 2023-04-25 |
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| CN201611036659.8A Active CN107477361B (en) | 2016-11-23 | 2016-11-23 | Combined rupture disc safety device for high-pressure natural gas long tube trailer and application method thereof |
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| CN112253999B (en) * | 2020-10-30 | 2022-07-01 | 宝武清洁能源有限公司 | Hydrogen storage device management system, intelligent replacement method and device |
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| DE3609857A1 (en) * | 1986-03-22 | 1987-09-24 | Reck & Co | Device for safeguarding gasline systems, in particular against fire |
| CN86210506U (en) * | 1986-12-22 | 1988-02-10 | 浙江大学 | New type safety-monitoring protection device for pressure vessel |
| CN2182318Y (en) * | 1993-08-10 | 1994-11-09 | 大连理工大学 | Non-fragmenting clearway arch double-side notched metal fracturing diaphragm apparatus |
| US6220269B1 (en) * | 1999-12-30 | 2001-04-24 | Process Equipment Inc. | Bursting disc assembly retaining ring with a clover leaf cutting pattern and projection |
| CN201152809Y (en) * | 2007-11-12 | 2008-11-19 | 上海市特种设备监督检验技术研究院 | Bursting pressure test system of cylinder valve bursting disc |
| CN101514760B (en) * | 2009-03-17 | 2010-09-22 | 上海华理安全装备有限公司 | Two-way rupture disk safety device |
| AU2012279036A1 (en) * | 2011-07-07 | 2014-01-09 | General Equipment And Manufacturing Company, Inc., D/B/A Topworx, Inc. | Wireless monitoring systems for use with pressure safety devices |
| CN202329526U (en) * | 2011-11-24 | 2012-07-11 | 成都凯天电子股份有限公司 | Magnetic induction alarm of rupture disc device |
| CN203067874U (en) * | 2013-02-02 | 2013-07-17 | 成都凯天电子股份有限公司 | Antiarch rupture disk safety device |
| CN103574114A (en) * | 2013-10-29 | 2014-02-12 | 大连理工大学 | Active and passive bifunctional superpressure relief device and superpressure relief method |
| CN103925468A (en) * | 2014-04-21 | 2014-07-16 | 江苏赛宝龙石化有限公司 | Reactor safety control device |
| CN204961944U (en) * | 2015-09-21 | 2016-01-13 | 大连理工安全装备有限公司 | High -pressure natural gas long tube trailer is with two combination rupture disk pressure relief device |
| CN206221975U (en) * | 2016-11-23 | 2017-06-06 | 华东理工大学 | A kind of high-pressure natural gas long-tube trailer combined blasting piece safety device |
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2016
- 2016-11-23 CN CN201611036659.8A patent/CN107477361B/en active Active
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