CN112393118A - Intelligent earthquake emergency disposal system for gas user side - Google Patents
Intelligent earthquake emergency disposal system for gas user side Download PDFInfo
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- CN112393118A CN112393118A CN202011329232.3A CN202011329232A CN112393118A CN 112393118 A CN112393118 A CN 112393118A CN 202011329232 A CN202011329232 A CN 202011329232A CN 112393118 A CN112393118 A CN 112393118A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- 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
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/10—Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses an intelligent earthquake emergency disposal system at a gas user side, which comprises: the first gas cut-off valve is arranged on an indoor gas pipeline; the second gas cutting valve is arranged on the gas pipeline at the inlet and used for cutting off the gas pipeline at the inlet according to the self-perceived earthquake acceleration value; the third gas cut-off valve is arranged on a gas pipeline in the pressure regulating box and is used for cutting off the gas pipeline in the pressure regulating box according to the self-sensed earthquake dynamic acceleration value; the earthquake information acquisition equipment is arranged indoors and used for receiving earthquake motion acceleration values and is in electric communication with the first gas cut-off valve, and the first gas cut-off valve cuts off an indoor gas pipeline according to the earthquake motion acceleration values acquired by the earthquake information acquisition equipment. By the scheme of the invention, the system control of the gas pipeline can be realized, the earthquake intensity can be monitored from multiple angles and multiple directions, and a better application effect is provided for preventing earthquake and fire.
Description
Technical Field
The invention relates to the technical field of earthquake detection, in particular to an intelligent earthquake emergency disposal system at a gas user side.
Background
China is one of countries with multiple earthquakes, and a large number of facts prove that a fire caused by an earthquake is the most main and serious secondary disaster and sometimes even more serious than the disaster of the earthquake. Earthquake fire often crosses the fire area great, and the place of emergence is many and dispersed, has increased complexity and the arduous nature that the conflagration was put out a fire and is saved, especially when strong earthquake takes place the back, fire fighter is injured, urban road traffic destroys, fire control water source etc. facility suffers serious destruction, has brought very big difficulty for the work of putting out a fire.
Earthquake fire causes are various, but one of the main causes is that a gas pipeline is broken or people have no time to close a fire source after being evacuated in a hurry. The city is a high-rise forest, natural gas and pipeline gas are dense like a spider web, about one third of cities and towns in China are located in areas where 7-level or more than 7-level major earthquakes are likely to occur, if 8-level major earthquakes occur in developed areas in the east, thousands of natural gas pipelines of high-rise buildings can be damaged, if effective control and emergency treatment are not achieved, serious consequences cannot be estimated, and serious earthquake fire risks are rapidly increased.
At present, gas pipe network emergency disposal systems are built in many countries and regions, for example, tokyo gas company in japan built tokyo gas pipe network earthquake emergency disposal systems in 1994; corresponding measures are also taken in Taiwan areas of China to prevent secondary earthquake disasters; the engineering mechanics research institute of the earthquake bureau of China develops a set of emergency cutting device specially used for the urban gas pipe network earthquake, and the emergency cutting device is demonstrated and applied at present, so that a better application effect is achieved. As another example, patents have been published including CN107420601A, CN108644458B, etc., and a seismic emergency shut-off device is also disclosed. However, the current gas pipeline network emergency treatment system lacks systematic application.
Disclosure of Invention
The invention discloses an intelligent earthquake emergency disposal system on a gas user side, which is used for solving the problem that an earthquake emergency cut-off device in the prior art is lack of systematic application.
In order to solve the problems, the invention adopts the following technical scheme:
provided is a gas user side intelligent earthquake emergency treatment system, comprising:
the first gas stop valve is arranged on an indoor gas pipeline;
the second gas cut-off valve is arranged on the gas pipeline at the inlet and is used for cutting off the gas pipeline at the inlet according to the self-sensed earthquake motion acceleration value;
the third gas cut-off valve is arranged on a gas pipeline in the pressure regulating box and used for cutting off the gas pipeline in the pressure regulating box according to the self-sensed earthquake dynamic acceleration value;
the earthquake information acquisition equipment is arranged indoors and used for receiving earthquake motion acceleration values and is in electric communication with the first gas cut-off valve, and the first gas cut-off valve cuts off the gas pipeline indoors according to the earthquake motion acceleration values acquired by the earthquake information acquisition equipment.
Optionally, gas user side intelligence earthquake promptly handles system still including setting up the collection equipment that just is connected with the upper system electricity in introducing entrance and pressure regulating box, collection equipment gathers the second gas shut-off valve with the valve on-off state of third gas trip valve just uploads upper system.
Optionally, the seismic information acquisition device further includes a return module electrically connected to the upper system to return the peak acceleration value of the first gas shutoff valve and the valve on-off state.
Optionally, the earthquake information acquisition device further includes an alarm provided with a smaller first alarm threshold and a larger second alarm threshold, wherein the alarm gives an alarm when the earthquake motion acceleration value acquired by the earthquake information acquisition device is greater than the first alarm threshold and smaller than the second alarm threshold; and when the earthquake motion acceleration value acquired by the earthquake information acquisition equipment is larger than a second alarm threshold value, the earthquake motion acceleration value is uploaded to an upper system, and the alarm gives an alarm.
Optionally, a cut-off threshold of the seismic acceleration value of the first gas cut-off valve is smaller than a cut-off threshold of the seismic acceleration value of the second gas cut-off valve and a cut-off threshold of the seismic acceleration value of the third gas cut-off valve, and the cut-off thresholds of the seismic acceleration values of the second gas cut-off valve and the third gas cut-off valve are the same.
Optionally, the gas user side intelligent earthquake emergency disposal system further comprises a fourth gas cut-off valve electrically connected with the upper system, the fourth gas cut-off valve is arranged in the pressure regulating box and on the gas pipeline, and the fourth gas cut-off valve cuts off the fourth gas cut-off valve according to the earthquake motion acceleration value obtained by the upper system from the earthquake bureau.
Optionally, a cut-off threshold of the seismic acceleration value of the fourth gas cut-off valve is the same as a cut-off threshold of the seismic acceleration value of the third gas cut-off valve.
Optionally, gas user side intelligence earthquake promptly deal with system still including set up in the pressure regulating box and perception earthquake motion acceleration the earthquake response equipment and with earthquake response equipment fourth gas trip valve electricity is connected with the collection earthquake motion acceleration value the earthquake data acquisition transmission equipment of the valve cutting information of fourth gas trip valve, earthquake data acquisition transmission equipment with upper system electricity is connected with passback earthquake motion acceleration value, valve cutting information.
Optionally, the seismic data acquisition and transmission device includes a first acquisition module for acquiring a seismic dynamic acceleration value sent by the seismic sensing device, a second acquisition module for acquiring a valve on-off state representing the valve cutting information, and a third acquisition module for acquiring a valve on-off state corresponding time representing the valve cutting information.
Optionally, the fourth gas cut-off valve is automatically cut off before the arrival time of the earthquake sent by the upper system, wherein the arrival time of the earthquake is obtained by the upper system from an earthquake bureau.
The technical scheme adopted by the invention can achieve the following beneficial effects:
because different nodes at gas pipeline are equipped with the gas trip valve respectively, consequently can select the cutting off of different grade gas pipelines as required, for example cut off the gas pipeline of an independent user, the gas pipeline of an independent unit or a district, realize gas pipeline's system control, can follow many angles moreover, diversely monitor seismic intensity, provide better application effect for preventing earthquake fire.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced to form a part of the present invention, and the exemplary embodiments and the description thereof will explain the present invention without unduly limiting the present invention. In the drawings:
FIG. 1 is a schematic structural diagram of an intelligent earthquake emergency disposal system at a gas user side according to the present disclosure;
fig. 2 is a schematic structural diagram of the seismic sensing apparatus.
Wherein the following reference numerals are specifically included in figures 1-2:
a gas pipeline-1; a pressure regulating box-2; a first gas shut-off valve-31; a second gas shutoff valve-32; a third gas shut-off valve-33; a fourth gas shut-off valve-34; a host system-4; seismic information acquisition equipment-5; seismic sensing equipment-61; seismic data acquisition and transmission equipment-62; a gas meter-7; a cooking range-8; a voltage regulator-21; a filter-22; a flange ball valve-23; a threaded ball valve-311; a charger-611; a battery-612; a booster-613; a relay-614; DTU-615; a solenoid valve-616; seismic valve-617.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the embodiments described are only some embodiments of the invention, and not all 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.
As shown in fig. 1, a dotted line connected to the upper system 4 represents signal acquisition, and a dashed-dotted line represents a control signal. The intelligent earthquake emergency disposal system at the gas user side is used for realizing the system control of the gas pipeline 1 when an earthquake occurs. In order to facilitate understanding of the intelligent earthquake emergency disposal system at the gas user side, the invention first introduces the arrangement mode of the gas pipeline 1. The gas pipeline 1 is arranged in a mode that the gas pipeline 1 firstly passes through the pressure regulating box 2, and is connected to the cooking utensils 8 of different users after filtering and regulating the upstream incoming gas through the filter 22 and the pressure regulator 21 in the pressure regulating box 2. Wherein, the gas pipeline 1 is led out from the pressure regulating box 2 and then can be divided into a plurality of pipelines which are respectively led into different buildings, and each pipeline is branched into a plurality of pipelines at the leading-in port so as to lead in different users of the same unit. A flange ball valve 23 is arranged in front of the filter 22.
The user side intelligent earthquake emergency disposal system comprises a first gas shut-off valve 31, a second gas shut-off valve 32, a third gas shut-off valve 33, a fourth gas shut-off valve 34 and earthquake information acquisition equipment 5. The first gas shutoff valve 31 is provided for the gas pipe 1 indoors (i.e., in the user room). The second gas shut-off valve 32 is provided on the gas pipe 1 at the inlet. The third gas shut-off valve 33 and the fourth gas shut-off valve 34 are arranged on the gas pipeline 1 in the pressure regulating tank 2. The earthquake information acquisition equipment 5 is arranged indoors, is electrically communicated with the first gas cut-off valve 33, and sends the received earthquake motion acceleration value to the first gas cut-off valve 31, so that the first gas cut-off valve 31 cuts off the gas pipeline 1 indoors according to the earthquake motion acceleration value. The second gas cut-off valve 32 and the third gas cut-off valve 33 can cut off the gas pipeline 1 at the corresponding position according to the earthquake motion acceleration value sensed by the second gas cut-off valve and the third gas cut-off valve. Because the gas stop valves are respectively arranged at different nodes of the gas pipeline 1, the gas pipelines 1 with different grades can be cut off according to requirements, for example, the gas pipeline 1 of a single user or the gas pipeline 1 of a single unit is cut off, and the system control of the gas pipeline 1 is realized.
The first gas shutoff valve 31 may be provided at a position closer to the user gas meter 7. The second gas shutoff valve 32 may be provided at a position near the inlet gas piping 1. A third gas shut-off valve 33 may be provided downstream of the pressure regulator 21. The first gas shut-off valve 31 may be a solenoid valve, i.e., a threaded quick action valve, and a threaded ball valve 311 is provided upstream of the threaded quick action valve. The second gas shut-off valve 32 and the third gas shut-off valve 33 can be mechanical earthquake shut-off valves, and small balls for sensing earthquake acceleration values are arranged in the mechanical earthquake shut-off valves and can operate without power supply.
The cut-off threshold values of the seismic acceleration values of the second gas cut-off valve 32 and the third gas cut-off valve 33 are the same and are greater than the cut-off threshold value of the seismic acceleration value of the first gas cut-off valve 31, for example, when the local seismic acceleration value is greater than 250gal, the first gas cut-off valve 31 is cut off first; when the seismic intensity represented by the local shock acceleration value reaches VII level, the second gas cut-off valve 32 and the third gas cut-off valve 33 are cut off.
It should be noted that the acquisition mode of the seismic information acquisition device 5 for acquiring the seismic acceleration value is the same as the conventional one, and detailed description thereof is omitted here. The earthquake information acquisition equipment 5 can be arranged in one of the rooms, or the earthquake information acquisition equipment 5 can be arranged in all the rooms, and when the earthquake acceleration value monitored by one earthquake information acquisition equipment 5 reaches a cut-off threshold value, the first gas cut-off valve 31 is controlled to cut off the gas pipeline 1 in the room.
The seismic information acquisition equipment 5 further comprises a return module and an alarm. The feedback module is electrically connected with the upper system 4 to transmit back the peak acceleration value (i.e. the maximum value of the seismic acceleration value) of the first gas cut-off valve 31 and the valve cut-off information, and the valve cut-off information includes the valve on-off state and the corresponding time of the valve on-off state, so that the upper system 4 knows the user side condition in real time. The alarm is provided with a smaller first alarm threshold (for example, 10gal) and a larger second alarm threshold (for example, 250gal), and the alarm gives an alarm when the earthquake dynamic acceleration value acquired by the earthquake information acquisition equipment 5 is greater than the first alarm threshold and smaller than the second alarm threshold; and when the earthquake motion acceleration value acquired by the earthquake information acquisition equipment 5 is greater than the second alarm threshold value, the earthquake motion acceleration value is sent to the upper system 4, and the alarm gives an alarm. The upper system 4 is typically a gas SCADA system.
The intelligent earthquake emergency disposal system at the gas user side further comprises acquisition equipment which is arranged at the position of the entrance and in the pressure regulating box 2 and is electrically connected with the upper system 4, the acquisition equipment acquires valve cut-off information of the second gas cut-off valve 32 and the third gas cut-off valve 33 and uploads the valve cut-off information to the upper system, and the valve cut-off information of the second gas cut-off valve 32 and the third gas cut-off valve 33 comprises corresponding time of a valve switch state and a valve switch state.
The intelligent earthquake emergency processing system at the gas user side can further comprise a fourth gas stop valve 34 electrically communicated with the upper system 4, and the fourth gas stop valve 34 is arranged on the gas pipeline 1 in the pressure regulating tank 2. The cut-off threshold value of the fourth gas cut-off valve 34 can be obtained from the earthquake bureau, and when the upper system 4 receives that the earthquake motion acceleration value sent by the earthquake bureau exceeds the cut-off threshold value of the fourth gas cut-off valve 34, the upper system 4 controls the fourth gas cut-off valve 34 to cut off the gas pipeline 1 in the pressure regulating tank 2. The shut-off threshold of the fourth gas shut-off valve 34 may be the same as the shut-off threshold of the third gas shut-off valve 33, for example, 400gal, in which case the earthquake severity is class vii. The fourth gas shut-off valve 34 may be a solenoid valve.
The upper system 4 can also receive the coming time of an earthquake from an earthquake bureau, so that the fourth gas shut-off valve 34 is controlled to shut off the gas pipeline 1 in the pressure regulating tank 2 before the coming time of the earthquake.
The intelligent earthquake emergency treatment system on the gas user side further comprises earthquake sensing equipment 61 and earthquake data acquisition and transmission equipment 62. The seismic sensing device 61 is disposed in the surge tank 2 and senses seismic dynamic acceleration. The seismic data acquisition and transmission equipment 62 is electrically connected with the seismic sensing equipment 61 and the fourth gas cut-off valve 34 to receive seismic acceleration values acquired by the seismic sensing equipment 61 and valve cut-off information acquired by the fourth gas cut-off valve 34, and then the seismic data acquisition and transmission equipment 62 transmits the seismic acceleration values and the valve cut-off information back to the upper system 4, so that the upper system 4 knows the condition of the user side pressure regulating box 2 in real time. The valve-off information may include a valve on-off state and a corresponding time of the valve on-off state, and at this time, the seismic data acquisition transmission device 62 includes a first acquisition module for acquiring a seismic acceleration value sent by the seismic sensing device 61, a second acquisition module for acquiring the valve on-off state, and a third acquisition module for acquiring the corresponding time of the valve on-off state.
As shown in fig. 2, the seismic data acquisition and transmission equipment 62 is the same as the general seismic data acquisition and transmission equipment 62, and comprises a 12V battery charger 611, a 12V38AH high-current battery 612, a 12V- >24V booster 613, a 24V high-current relay 6(3.3V control voltage) 14, a DTU615 (network remote switch with DI and DO), an explosion-proof box 616 and other accessories such as an air switch, a bracket, a cable, a solenoid valve 617, a seismic valve switch sensor 618 and the like.
In a specific application scenario, when an earthquake occurs, the indoor earthquake information acquisition equipment 5 can send out an audible and visual alarm to remind a user of paying attention when sensing that the earthquake acceleration value is 10gal, and can automatically send out a signal to control the indoor first gas cut-off valve 32 to be cut off when sensing that the earthquake acceleration value is 250gal, and meanwhile, the earthquake information acquisition equipment 5 can upload the earthquake acceleration value and the valve cut-off information to the upper system 4. The second gas cut-off valve 32 and the third gas cut-off valve 33 are automatically cut off when the seismic intensity reaches VII level, and the valve cut-off information is uploaded to the upper system 4 through the acquisition equipment. When the upper system 4 receives earthquake early warning information (namely earthquake acceleration value) sent by an earthquake bureau, a cutting instruction can be sent to the fourth gas cut-off valve 34 in the pressure regulating box 2, so that the fourth gas cut-off valve 34 is automatically cut off when the earthquake intensity reaches VII level. The seismic data acquisition and transmission equipment 62 uploads the seismic acceleration value and the valve cutoff information to the upper system 4.
The intelligent earthquake emergency disposal system at the gas user side can realize systematic application, monitor earthquake intensity from multiple angles and multiple directions and provide better application effect for preventing earthquake and fire.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and various modifications thereof can be made by those skilled in the art without departing from the spirit and scope of the present invention.
Claims (10)
1. A gas user side intelligent earthquake emergency treatment system is characterized by comprising:
the first gas stop valve is arranged on an indoor gas pipeline;
the second gas cut-off valve is arranged on the gas pipeline at the inlet and is used for cutting off the gas pipeline at the inlet according to the self-sensed earthquake motion acceleration value;
the third gas cut-off valve is arranged on a gas pipeline in the pressure regulating box and used for cutting off the gas pipeline in the pressure regulating box according to the self-sensed earthquake dynamic acceleration value;
the earthquake information acquisition equipment is arranged indoors and used for receiving earthquake motion acceleration values and is in electric communication with the first gas cut-off valve, and the first gas cut-off valve cuts off the gas pipeline indoors according to the earthquake motion acceleration values acquired by the earthquake information acquisition equipment.
2. The intelligent earthquake emergency disposal system at the gas user side according to claim 1, further comprising an acquisition device disposed at the inlet and in the pressure regulating box and electrically connected to the upper system, wherein the acquisition device acquires the valve cut-off information of the second gas cut-off valve and the third gas cut-off valve and uploads the valve cut-off information to the upper system, and the valve cut-off information of the second gas cut-off valve and the third gas cut-off valve comprises the corresponding time of the valve on-off state and the valve on-off state.
3. The gas user-side intelligent earthquake emergency disposal system according to claim 2, wherein said earthquake information acquisition equipment further comprises a return module electrically connected with said upper system for returning the peak acceleration value of said first gas shut-off valve and valve shut-off information.
4. The gas user-side intelligent earthquake emergency disposal system according to claim 2, wherein said earthquake information acquisition equipment further comprises an alarm provided with a smaller first alarm threshold value and a larger second alarm threshold value, wherein said alarm gives an alarm when the earthquake motion acceleration value acquired by said earthquake information acquisition equipment is greater than the first alarm threshold value and less than the second alarm threshold value; and when the earthquake motion acceleration value acquired by the earthquake information acquisition equipment is larger than a second alarm threshold value, the earthquake motion acceleration value is uploaded to an upper system, and the alarm gives an alarm.
5. The gas user-side intelligent earthquake emergency disposal system according to claim 2, wherein a cut-off threshold value of the earthquake acceleration value of said first gas cut-off valve is smaller than cut-off threshold values of the earthquake acceleration values of said second gas cut-off valve and said third gas cut-off valve, and said cut-off threshold values of the earthquake acceleration values of said second gas cut-off valve and said third gas cut-off valve are the same.
6. The gas user side intelligent earthquake emergency disposal system according to claim 5, further comprising a fourth gas cut-off valve electrically connected with said upper system, said fourth gas cut-off valve being disposed on said gas pipeline in said pressure regulating tank, said fourth gas cut-off valve cutting off said fourth gas cut-off valve according to earthquake acceleration value obtained from earthquake bureau by upper system.
7. The gas user-side intelligent earthquake emergency disposal system according to claim 6, wherein the cut-off threshold value of the seismic acceleration value of said fourth gas shut-off valve is the same as the cut-off threshold value of the seismic acceleration value of said third gas shut-off valve.
8. The gas user side intelligent earthquake emergency disposal system according to claim 6, further comprising earthquake sensing equipment disposed in the pressure regulating box and sensing earthquake dynamic acceleration, and earthquake data acquisition and transmission equipment electrically connected with the earthquake sensing equipment and the fourth gas cut-off valve for acquiring earthquake dynamic acceleration values and valve cut-off information of the fourth gas cut-off valve, wherein the earthquake data acquisition and transmission equipment is electrically connected with the upper system for transmitting earthquake dynamic acceleration values and valve cut-off information.
9. The gas user-side intelligent earthquake emergency disposal system according to claim 8, wherein said earthquake data acquisition and transmission device comprises a first acquisition module for acquiring earthquake acceleration values sent by said earthquake sensing device, a second acquisition module for acquiring valve on-off states representing said valve off-off information, and a third acquisition module for acquiring corresponding times of valve on-off states representing said valve off-off information.
10. The gas user-side intelligent earthquake emergency disposal system according to any one of claims 6 to 9, wherein said fourth gas shut-off valve is automatically shut off before the arrival time of an earthquake transmitted by an upper system, wherein the upper system acquires the arrival time of the earthquake from an earthquake bureau.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011329232.3A CN112393118A (en) | 2020-11-24 | 2020-11-24 | Intelligent earthquake emergency disposal system for gas user side |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011329232.3A CN112393118A (en) | 2020-11-24 | 2020-11-24 | Intelligent earthquake emergency disposal system for gas user side |
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| CN112393118A true CN112393118A (en) | 2021-02-23 |
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| CN202011329232.3A Pending CN112393118A (en) | 2020-11-24 | 2020-11-24 | Intelligent earthquake emergency disposal system for gas user side |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210302602A1 (en) * | 2020-03-31 | 2021-09-30 | Omron Corporation | Seismic sensor |
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2020
- 2020-11-24 CN CN202011329232.3A patent/CN112393118A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210302602A1 (en) * | 2020-03-31 | 2021-09-30 | Omron Corporation | Seismic sensor |
| US11635534B2 (en) * | 2020-03-31 | 2023-04-25 | Omron Corporation | Seismic sensor |
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