CN113008460B - Be used for automatic fire prevention to prevent gas leakage alarm system - Google Patents

Be used for automatic fire prevention to prevent gas leakage alarm system Download PDF

Info

Publication number
CN113008460B
CN113008460B CN202110216689.1A CN202110216689A CN113008460B CN 113008460 B CN113008460 B CN 113008460B CN 202110216689 A CN202110216689 A CN 202110216689A CN 113008460 B CN113008460 B CN 113008460B
Authority
CN
China
Prior art keywords
comparator
controller
electrically connected
alarm system
gas leakage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202110216689.1A
Other languages
Chinese (zh)
Other versions
CN113008460A (en
Inventor
胡宏波
陈希闯
林雪凤
董希标
夏少星
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Nandun Technology Development Co ltd
Original Assignee
Zhejiang Nandun Technology Development Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Nandun Technology Development Co ltd filed Critical Zhejiang Nandun Technology Development Co ltd
Priority to CN202110216689.1A priority Critical patent/CN113008460B/en
Publication of CN113008460A publication Critical patent/CN113008460A/en
Application granted granted Critical
Publication of CN113008460B publication Critical patent/CN113008460B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C31/00Delivery of fire-extinguishing material
    • A62C31/02Nozzles specially adapted for fire-extinguishing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/22Fuels, explosives
    • G01N33/225Gaseous fuels, e.g. natural gas
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02Alarms for ensuring the safety of persons
    • G08B21/12Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
    • G08B21/16Combustible gas alarms

Abstract

The utility model relates to an alarm system's technical field discloses a be used for automatic fire prevention to prevent gas leakage alarm system, and it includes the detection mechanism that detects the gas, carries out the ventilation mechanism of handling to the gas, detection mechanism includes first controller, first controller electricity is connected with first comparator, first comparator electricity is connected with the detector, the first alarm that first controller electricity is connected with, this application has the effect of reporting to the police.

Description

Be used for automatic fire prevention to prevent gas leakage alarm system
Technical Field
The application relates to the technical field of alarm systems, in particular to an automatic fireproof and gas leakage prevention alarm system.
Background
At present, fuel gas is a general term for gas fuel, and can be combusted to release heat for residents and industrial enterprises. The gas is of various types, mainly including natural gas, artificial gas, liquefied petroleum gas, methane and coal gas.
In the related art, a large number of gas pipelines are arranged in a plurality of public places, a large number of gas exists in the gas pipelines, but no device for detecting the content of the gas is arranged in the public places.
In view of the above-mentioned related art, the inventor believes that gas leakage in the gas pipeline causes gas explosion, which poses a danger to people.
Disclosure of Invention
In order to improve the difficult problem of discovereing that indoor gas content exceeds standard, this application provides one kind and is used for preventing fires automatically and prevents that gas leakage alarm system.
The application provides a be used for automatic fire prevention to prevent gas leakage alarm system adopts following technical scheme:
the utility model provides a be used for automatic fire prevention to prevent gas leakage alarm system, includes the detection mechanism that detects the gas, carries out the ventilation mechanism that handles the gas, detection mechanism includes first controller, first controller electricity is connected with first comparator, first comparator electricity is connected with the detector, the first alarm that first controller electricity is connected with.
By adopting the technical scheme, a preset value is set for the first comparator, the detector is used for detecting the gas content in the air, and when the gas content in the air is larger than the preset value of the first comparator, the first controller sends a signal to the first alarm to enable the first alarm to give an alarm, so that a worker can quickly find and process potential safety hazards; when the gas content in the air is less than or equal to the preset value of the first comparator, the first controller does not send out a signal.
Optionally, a fixed box is arranged outside the detector, and the fixed box is provided with air holes.
Through adopting above-mentioned technical scheme, set up fixed case, make the difficult direct detector that touches of people, reduce the probability that the detector is collided, protect the detector, improve the life of detector.
Optionally, the fixed box is covered with a fireproof coating.
Through adopting above-mentioned technical scheme, at fixed case outer cover fire protection coating, have the fire prevention effect, when flame appears in indoor, can protect the detector, make the detector be difficult for being burnt out to protect the detector better.
Optionally, a fixing bag is arranged outside the fixing box, and a fire retardant is filled in the fixing bag.
Through adopting above-mentioned technical scheme, when appearing indoor flame, fixed bag is burnt out, and the fire retardant in the fixed bag leaks, carries out fire-retardant to flame, plays the fire prevention effect.
Optionally, one side of fixed case is provided with gravity sensor, gravity sensor's up end and fixed bag below butt, the gravity sensor electricity is connected with the third comparator, the third comparator electricity is connected with the second alarm.
By adopting the technical scheme, a preset value is set for the third comparator, and the second alarm is not started when the gravity of the fixing bag is greater than the preset value of the third comparator; when the gravity of the fixed bag is less than or equal to the preset value of the third comparator, the second alarm is started, and the alarm has the functions of alarming and indicating, so that people can quickly find out a fire.
Optionally, the spraying mechanism comprises a water pump, the water pump is connected with a water inlet pipe and a water outlet pipe, the water outlet pipe comprises a water outlet main pipe connected with the water pump, the water outlet main pipe is connected with a water outlet branch pipe, and a spray head is arranged on the water outlet branch pipe.
Through adopting above-mentioned technical scheme, the water pump starts, carries water, and water is from the shower nozzle blowout after through inlet tube, play water house steward and play water distribution pipe, handles the condition of a fire, handles the potential safety hazard, improves the security of bank.
Optionally, the spray heads are arranged in a plurality, and the plurality of spray heads are distributed in an array manner along the length direction of the water outlet branch pipe.
Through adopting above-mentioned technical scheme, set up a plurality of shower nozzles, increase the indoor region that can spray to water, effectively handle indoor everywhere conflagration, improve the security.
Optionally, the spraying mechanism further comprises a third controller, the third comparator is electrically connected with the third controller, and the third controller is electrically connected with the water pump.
By adopting the technical scheme, when the third comparator sends a signal to the third controller, the third controller turns on the water pump to enable the spray head to discharge water; otherwise, the third controller controls the water pump to be closed, so that the spray head can not discharge water.
Optionally, the ventilation mechanism comprises a fan arranged on the wall.
Through adopting above-mentioned technical scheme, when the fan started, with the inside air of bank towards outdoor transport, reduce indoor gas content, play the effect of prevention conflagration.
Optionally, the ventilation mechanism further includes a second comparator and a second controller, the second comparator is electrically connected to the detector, the second comparator is electrically connected to the second controller, and the blower is electrically connected to the second controller.
By adopting the technical scheme, a preset value is set for the second comparator, and when the value transmitted to the second comparator by the detector is greater than the preset value of the second comparator, the second controller controls the fan to be turned on; when the value transmitted to the second comparator by the first controller is less than or equal to the preset value of the second comparator, the second controller controls the fan to be turned off.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the method comprises the steps that a preset value is set for a first comparator, a detector is used for detecting the content of gas in air, and when the content of gas in air is larger than the preset value of the first comparator, a first controller sends a signal to a first alarm to enable the first alarm to give an alarm, so that a worker can find and process potential safety hazards quickly; when the gas content in the air is less than or equal to the preset value of the first comparator, the first controller does not send out a signal;
2. set up fixed case, protect the detector, make the difficult direct touch detector of people, prevent that the detector from damaging because of the collision.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
FIG. 2 is a partial schematic view of the spray mechanism;
fig. 3 is a partial structural view of the stationary box.
Reference numerals: 1. a detection mechanism; 11. a first controller; 12. a detection component; 121. a first comparator; 122. a detector; 123. a first alarm; 2. a ventilation mechanism; 21. a fan; 22. a second comparator; 23. a second controller; 3. a spraying mechanism; 31. a water pump; 32. a water inlet pipe; 33. a water outlet pipe; 331. a water outlet main pipe; 332. a water outlet branch pipe; 34. a spray head; 35. a third controller; 4. a fixed box; 41. fixing grooves; 42. a box door; 43. air holes are formed; 44. a fixing plate; 45. a gravity sensor; 46. a third comparator; 47. fixing the bag; 48. and a second alarm.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment discloses an automatic fire-proof and gas-leakage-proof alarm system. Referring to fig. 1 and 2, the alarm system includes a detection mechanism 1 that detects a gas, a ventilation mechanism 2 that treats the gas, and a spray mechanism 3 that treats a fire.
Referring to fig. 1, the detection mechanism 1 includes a first controller 11 and a detection assembly 12. The first controller 11 is provided on a wall in a room. The detecting member 12 is provided in plural numbers (only three are shown in fig. 1 as an example), and the plural detecting members 12 are distributed in various places in the room. The larger the number of detection assemblies 12, the more accurate the values obtained for each location in the room.
Referring to fig. 1, the detection mechanism 1 includes a first comparator 121, a detector 122, and a first alarm 123. The first comparator 121 is electrically connected to the first controller 11 through an electric wire, and the first comparator 121 is electrically connected to the detector 122 through an electric wire. The first controller 11 is electrically connected to the first alarm 123 through an electric wire. Be provided with the display on the first controller 11 for the concrete numerical value of gas in the display air, the staff of being convenient for observes and knows indoor everywhere the condition, thereby in time handles the problem.
Referring to fig. 1 and 3, the detector 122 employs a catalytic combustion sensor for flameless combustion of the sensing resistor and the combustible gas in the environment, so as to change the temperature change in the environment, and the resistance value of the sensing resistor changes due to the temperature change, so as to break the bridge balance, and output a stable current signal, and finally display a reliable value through amplification, stabilization and processing of a later circuit, so as to detect the combustible gas.
Referring to fig. 1, in operation, a predetermined value is set to the first comparator 121, and the detector 122 detects the gas content in the air and transmits a signal to the first comparator 121. When the value detected by the detector 122 is greater than the predetermined value of the first comparator 121, the first controller 11 sends a signal to the first alarm 123, so that the first alarm 123 gives an alarm; when the value detected by the detector 122 is less than or equal to the predetermined value of the first comparator 121, the first controller 11 does not send a signal to the first alarm 123, so that the first alarm 123 is in an off state.
Referring to fig. 1, a plurality of ventilation mechanisms 2 are provided, and the plurality of ventilation mechanisms 2 are provided at respective indoor locations. The ventilation mechanism 2 includes a fan 21, a second comparator 22, and a second controller 23. The fan 21 is disposed on a wall, the second comparator 22 is electrically connected to the detector 122 through an electric wire, the second comparator 22 is electrically connected to the second controller 23 through an electric wire, and the second controller 23 is electrically connected to the fan 21 through an electric wire.
Referring to fig. 1, in operation, a predetermined value is set to the second comparator 22, and the detector 122 detects the gas content of the air and sends a signal to the second comparator 22. The predetermined value set by the second comparator 22 is lower than the predetermined value of the first comparator 121. When the value detected by the detector 122 is greater than the predetermined value of the second comparator 22, the second controller 23 sends a signal to the blower 21, so that the blower 21 is started, and the blower 21 conveys indoor air to the outside, thereby reducing indoor gas capacity, improving indoor safety, and eliminating potential safety hazards; conversely, when the value detected by the detector 122 is less than or equal to the predetermined value of the second comparator 22, the second controller 23 does not signal the blower 21, i.e., the blower 21 is not activated. If the gas leakage is serious, when the value detected by the detector 122 is greater than the value set by the first comparator 121, the first alarm 123 is enabled to give an alarm.
Referring to fig. 1 and 3, a fixing box 4 is disposed on a wall in a room, and a fixing groove 41 is formed on an end surface of the fixing box 4 away from the wall. The end surface of the fixed box 4 far away from the wall surface is rotatably connected with a box door 42. The outer surface of the fixed box 4 and the outer surface of the box door 42 are both covered with a fire-retardant coating.
Referring to fig. 1 and 3, the detector 122 is installed in the fixing groove 41, a plurality of air holes 43 are respectively formed in two opposite end surfaces of the fixing box 4 and the bottom surface of the fixing box 4, the air holes 43 are communicated with the fixing groove 41, so that air can enter the fixing groove 41 conveniently, and gas in the air can be detected by the detector 122 conveniently.
Referring to fig. 3, the fixing plates 44 are fixedly connected to both ends of the fixing box 4, and a gravity sensor 45 is disposed on the fixing plates 44. The fixing plate 44 and the gravity sensor 45 are covered with fireproof coatings.
Referring to fig. 3, a fixing bag 47 is fixedly connected to one side of the fixing box 4 facing the fixing plate 44, and the fixing bag 47 is filled with a fire retardant. The fixing bag 47 abuts on the upper end surface of the gravity sensor 45. The gravity sensor 45 is electrically connected to a third comparator 46 through an electric wire, and the third comparator 46 is electrically connected to a second alarm 48 through an electric wire. The second alarm 48 is fixedly connected above the stationary box 4.
Referring to fig. 3, the flame retardant may be flame retardant powder or flame retardant gas, the flame retardant powder may be any one of flame retardants such as ammonium phosphate powder and potassium chloride powder, and the flame retardant gas may be any one of flame retardants such as carbon dioxide gas and heptafluoropropane gas. The flame retardant in this application is ammonium phosphate powder.
Referring to fig. 1 and 3, in operation, a predetermined value is set for the third comparator 46, and when the gravity of the fixing bag 47 is greater than the predetermined value of the third comparator 46, the second alarm 48 does not give an alarm; the second alarm 48 gives an alarm when the weight of the fixing bag 47 is less than or equal to a predetermined value of the third comparator 46, upon breakage of the fixing bag 47, the flame retardant is leaked, thereby reducing the weight of the fixing bag 47.
Referring to fig. 2 and 3, the spray mechanism 3 includes a water pump 31, a water inlet pipe 32, a water outlet pipe 33, a spray head 34, and a third controller 35. The third comparator 46 is electrically connected to the third controller 35 through an electric wire, and the third controller 35 is electrically connected to the water pump 31 through an electric wire.
Referring to fig. 2, the inlet pipe 32 communicates with the inlet end of the water pump 31. The water outlet pipe 33 comprises a water outlet main pipe 331 and a group of water outlet branch pipes 332, and the water outlet main pipe 331 is communicated with the water outlet end of the water pump 31. The number of the water outlet branch pipes 332 is two, and the two water outlet branch pipes 332 are located on two opposite sides of the water outlet manifold 331. The two groups of the branched water outlet pipes 332 respectively comprise a plurality of branched water outlet pipes 332, and the plurality of branched water outlet pipes 332 are communicated with the water outlet header pipe 331. A plurality of spray heads 34 are arranged below each water outlet branch pipe 332, the spray heads 34 are all communicated with the water outlet branch pipes 332, and the spray heads 34 are distributed in an array mode along the axial direction of the water outlet branch pipes 332.
The implementation principle of the automatic fireproof and gas leakage prevention alarm system is as follows: a predetermined value is set for the first comparator 121, the second comparator 22 and the third comparator 46, and when the value detected by the detector 122 is greater than the predetermined value of the second comparator 22, the second controller 23 controls the fan 21 to start; when the value detected by the detector 122 is greater than the predetermined value of the first comparator 121, the first controller 11 controls the first alarm 123 to give an alarm.
The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like made within the design concept of the present application should be included in the protection scope of the present application.

Claims (9)

1. The utility model provides a be used for automatic fire prevention to prevent gas leakage alarm system, includes detection mechanism (1) that detects the gas, its characterized in that: the gas detection device is characterized by further comprising a ventilation mechanism (2) for processing gas, the detection mechanism (1) comprises a first controller (11), the first controller (11) is electrically connected with a first comparator (121), the first comparator (121) is electrically connected with a detector (122), and the first controller (11) is electrically connected with a first alarm (123);
a fixed box (4) is arranged outside the detector (122);
a fixed bag (47) is arranged outside the fixed box (4);
a gravity sensor (45) is arranged on one side of the fixed box (4), the upper end face of the gravity sensor (45) is abutted against the lower part of the fixed bag (47), and the gravity sensor (45) is electrically connected with a third comparator (46);
the device also comprises a spraying mechanism (3), wherein the spraying mechanism (3) comprises a water pump (31);
the spraying mechanism (3) further comprises a third controller (35), the third comparator (46) is electrically connected with the third controller (35), and the third controller (35) is electrically connected with the water pump (31).
2. The automatic fire and gas leakage prevention alarm system according to claim 1, wherein: the fixed box (4) is provided with an air hole (43).
3. The automatic fire and gas leakage prevention alarm system according to claim 2, wherein: and a fireproof coating covers the fixed box (4).
4. The system according to claim 2, wherein the alarm system for automatic fire and gas leakage prevention comprises: and the fixed bag (47) is filled with a flame retardant.
5. The automatic fire and gas leakage prevention alarm system according to claim 4, wherein: the third comparator (46) is electrically connected with a second alarm (48).
6. The automatic fire and gas leakage prevention alarm system according to claim 5, wherein: the water pump (31) is connected with inlet tube (32) and outlet pipe (33), outlet pipe (33) are including water outlet manifold (331) be connected with water pump (31), water outlet manifold (331) are connected with out the moisture pipe (332), be provided with shower nozzle (34) on the moisture pipe (332).
7. The automatic fire and gas leakage prevention alarm system according to claim 6, wherein: the spray heads (34) are arranged in a plurality, and the spray heads (34) are distributed in an array mode along the length direction of the water outlet pipe (332).
8. The automatic fire and gas leakage prevention alarm system according to claim 1, wherein: the ventilation mechanism (2) comprises a fan (21) arranged on a wall.
9. The automatic fire and gas leakage prevention alarm system according to claim 8, wherein: the ventilation mechanism (2) further comprises a second comparator (22) and a second controller (23), the second comparator (22) is electrically connected with the detector, the second comparator (22) is electrically connected with the second controller (23), and the fan (21) is electrically connected with the second controller (23).
CN202110216689.1A 2021-02-26 2021-02-26 Be used for automatic fire prevention to prevent gas leakage alarm system Active CN113008460B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110216689.1A CN113008460B (en) 2021-02-26 2021-02-26 Be used for automatic fire prevention to prevent gas leakage alarm system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110216689.1A CN113008460B (en) 2021-02-26 2021-02-26 Be used for automatic fire prevention to prevent gas leakage alarm system

Publications (2)

Publication Number Publication Date
CN113008460A CN113008460A (en) 2021-06-22
CN113008460B true CN113008460B (en) 2022-05-17

Family

ID=76387484

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110216689.1A Active CN113008460B (en) 2021-02-26 2021-02-26 Be used for automatic fire prevention to prevent gas leakage alarm system

Country Status (1)

Country Link
CN (1) CN113008460B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204231820U (en) * 2014-12-04 2015-03-25 安徽耐得电气设备有限公司 A kind of automatic alarm photovoltaic array lightning-protection header box
CN205300124U (en) * 2015-12-26 2016-06-08 广州市银塑阻燃材料有限公司 Take alarm device's red phosphorus flame retardant vacuum drying machine
JP2018088105A (en) * 2016-11-29 2018-06-07 ホーチキ株式会社 Monitoring system
CN110038240A (en) * 2019-03-26 2019-07-23 北京石油化工学院 A kind of gas concentration automatic detection alarm and datonation-inhibition fire extinguishing linkage system
CN209993088U (en) * 2019-04-26 2020-01-24 彭召翔 Leakage alarm and self-rescue system for various gases
CN111256271A (en) * 2019-12-24 2020-06-09 山东橙家装饰设计有限公司 Intelligent fresh air system integrating safety alarm control and control method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204231820U (en) * 2014-12-04 2015-03-25 安徽耐得电气设备有限公司 A kind of automatic alarm photovoltaic array lightning-protection header box
CN205300124U (en) * 2015-12-26 2016-06-08 广州市银塑阻燃材料有限公司 Take alarm device's red phosphorus flame retardant vacuum drying machine
JP2018088105A (en) * 2016-11-29 2018-06-07 ホーチキ株式会社 Monitoring system
CN110038240A (en) * 2019-03-26 2019-07-23 北京石油化工学院 A kind of gas concentration automatic detection alarm and datonation-inhibition fire extinguishing linkage system
CN209993088U (en) * 2019-04-26 2020-01-24 彭召翔 Leakage alarm and self-rescue system for various gases
CN111256271A (en) * 2019-12-24 2020-06-09 山东橙家装饰设计有限公司 Intelligent fresh air system integrating safety alarm control and control method thereof

Also Published As

Publication number Publication date
CN113008460A (en) 2021-06-22

Similar Documents

Publication Publication Date Title
CN104833053B (en) The safety protecting method and system of air conditioner
CN110102001B (en) Fire-fighting linkage control system
CN102872556B (en) Cable fire prevention device and method of wind generating set
CN101066493B (en) Submerged nitrogen fire extinguishing system for closed space
CN203954499U (en) Cable shaft fire prevention and control device
KR101761721B1 (en) Device for prevention of fires smoke and firefighting
CN111103141A (en) Safety system for fuel cell engine test and control method thereof
CN106581915A (en) Combustible gas explosion protection system and control method thereof, as well as paint storehouse
CN116421921A (en) Energy storage system fire control strategy reliability assessment device and assessment method
CN113008460B (en) Be used for automatic fire prevention to prevent gas leakage alarm system
CN110624198A (en) Fire extinguishing system for urban switching station
CN114053632A (en) Energy storage device and control method thereof
CN109999394A (en) A kind of nitrogen automatic fire prevention fire extinguishing system
CN205177052U (en) Protection control device based on temperature and spark are surveyed
KR101704409B1 (en) Water supply apparatus for a sprinkler
CN210472834U (en) Oiling machine and filling station with automatic fire extinguishing function
CN205177053U (en) Protection control device based on temperature and flame are surveyed
CN114743334A (en) Fire monitoring system for electrical equipment
CN209204542U (en) A kind of heat detection automatic fire extinguisher
CN102493874A (en) Gas turbine package with fire protection, thermal insulation, ventilation and sound insulation functions
JP2011194015A (en) Fire extinguishing equipment
CN206240188U (en) A kind of multipoint sensor detection means suitable for fire-proof and explosion-proof deduster
Cheng et al. Research on application of artificial intelligence technology in fire alarm system of substations
CN210057236U (en) Automatic nitrogen fire prevention and extinguishing system
CN216629485U (en) Energy storage device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant