CN112915429A - Sound wave fire extinguishing device for oil and gas transmission station - Google Patents

Sound wave fire extinguishing device for oil and gas transmission station Download PDF

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Publication number
CN112915429A
CN112915429A CN202110378426.0A CN202110378426A CN112915429A CN 112915429 A CN112915429 A CN 112915429A CN 202110378426 A CN202110378426 A CN 202110378426A CN 112915429 A CN112915429 A CN 112915429A
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China
Prior art keywords
module
control box
unit
electrically connected
sound wave
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Pending
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CN202110378426.0A
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Chinese (zh)
Inventor
高新尧
李琳
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Xian Shiyou University
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Xian Shiyou University
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Priority to CN202110378426.0A priority Critical patent/CN112915429A/en
Publication of CN112915429A publication Critical patent/CN112915429A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C3/00Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C15/00Extinguishers essentially of the knapsack type
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C37/00Control of fire-fighting equipment
    • A62C37/08Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A62C37/10Releasing means, e.g. electrically released
    • A62C37/11Releasing means, e.g. electrically released heat-sensitive

Abstract

The invention discloses a sound wave fire extinguishing device for an oil and gas transmission station, which belongs to the technical field of sound wave fire extinguishing devices and comprises a control box, a sound wave cylinder and a first temperature sensor, wherein a control panel is arranged on the top surface of the control box, and the control panel is electrically connected with the control box. One side of the control box is connected with a sound wave cylinder through a data line, and a first temperature sensor is fixedly installed in an inner shell cavity of the sound wave cylinder. The inside of control box is provided with power module, and the power module outside is located fixed mounting on the inner wall of control box and is had second temperature sensor, and second temperature sensor passes through the data line and is connected with the control box. According to the invention, the first temperature sensor arranged on the sound wave cylinder is used, when the fire extinguishing device is close to a fire source, the first temperature sensor can monitor the temperature and transmit data back to the control box, when the monitored temperature exceeds a set standard value, the control box can be automatically controlled, so that the sound wave cylinder is automatically opened to perform sound wave fire extinguishing, and the sound wave fire extinguishing device has a good automatic induction fire extinguishing function.

Description

Sound wave fire extinguishing device for oil and gas transmission station
Technical Field
The invention belongs to the technical field of sound wave fire extinguishing devices, and particularly relates to a sound wave fire extinguishing device for an oil and gas transmission station.
Background
The fire extinguisher is a common object in life, is a device for extinguishing fire as the name suggests, has a plurality of types, is mainly distinguished according to components in the fire extinguisher, mainly comprises several types of foam, dry powder, alkyl halide, carbon dioxide and the like, has good fire extinguishing effect, but has different usable scenes due to different fire extinguishing agents in the fire extinguisher. In some occasions, these solid fire extinguishing agents cannot be directly applied to the fire point, and further other fire extinguishing modes are needed, for example, common fire extinguishers are not suitable when fire occurs in some oil and gas transmission stations. Because the oil and gas transmission station has the requirement of dust prevention and explosion prevention, the traditional fire extinguisher is used to easily generate larger potential safety hazard, a safer fire extinguishing mode and a safer fire extinguishing device are needed, the sound wave fire extinguisher takes place at the moment, and the sound wave fire extinguisher is used for extinguishing fire through sound waves as the name suggests, so that the sound wave fire extinguisher can be used in fire extinguishing scenes of high-risk areas of the oil and gas transmission station.
Chinese patent discloses (CN201822155497.0) a sound wave fire extinguisher, which comprises a connecting block and a storage battery, wherein the left side of the connecting block is fixedly connected with a fixed handle, the middle position of the left end face of the connecting block is horizontally and fixedly connected with a first support frame, the left end of the first support frame is vertically and crossly connected with a movable handle through a rotating pin, the storage battery is arranged on the right side of the connecting block, the right side of the storage battery is fixedly and electrically connected with a waveform signal generator, the right side of the waveform signal generator is fixedly provided with a power amplifier, the power amplifier is electrically connected with the waveform signal generator, a support ring of the device is sleeved on the forearm of a user, the user can conveniently and stably hold the fixed handle with the hand for use, and in the using process, the upper end and the lower end of the movable handle at the vertical position are rotated according to the needs, the pull a, then the ends of the linkage rods positioned at the front side and the rear side of the movable handle are pressed, so that the other end of the linkage rod is tilted, and the loudspeaker is driven by the linkage rope to be subjected to angle adjustment in the horizontal direction, so that the loudspeaker can be conveniently aligned to different directions for use in different environments. However, the automatic sensing module is not arranged inside the sound wave fire extinguisher, the intelligent automatic sensing fire extinguishing function cannot be realized, the state in the device cannot be monitored, the overall safety of the device cannot be guaranteed during continuous use, the service life of the device cannot be guaranteed, and certain improvement is needed.
Disclosure of Invention
The invention aims to: in order to solve traditional sound wave fire extinguisher not be provided with the automatic sensing module including, can't be to realizing intelligent auto-induction function of putting out a fire, can't monitor the state in the device simultaneously, the whole security of device when unable guarantee lasts the use, the problem of the life of unable guarantee device, and the sound wave extinguishing device who provides can be used to defeated oil gas station.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a can be used to defeated oil gas station's sound wave extinguishing device, includes control box, a sound wave section of thick bamboo and a temperature sensor, installs control panel on the top surface of control box, and control panel is connected with the control box electricity. One side of the control box is connected with a sound wave cylinder through a data line, and a first temperature sensor is fixedly installed in an inner shell cavity of the sound wave cylinder. The inside of control box is provided with power module, and the power module outside is located fixed mounting on the inner wall of control box and is had second temperature sensor, and second temperature sensor passes through the data line and is connected with the control box.
As a further description of the above technical solution:
the top of a sound wave tube is fixedly provided with a handle, and the inside of the sound wave tube is fixedly provided with a sound wave reflection inner sheet.
As a further description of the above technical solution:
the control box is internally provided with: the device comprises an instruction input module, a power supply monitoring module, a temperature monitoring module, a data receiving module and a data reading module. The output end of the control panel is electrically connected with the input end of the instruction input module, the output end of the second temperature sensor is electrically connected with the input end of the power supply monitoring module, the output end of the first temperature sensor is electrically connected with the input end of the temperature monitoring module, the output ends of the temperature monitoring module, the instruction input module and the power supply monitoring module are electrically connected with the input end of the data receiving module, and the output end of the data receiving module is electrically connected with the input end of the data reading module.
As a further description of the above technical solution:
the inside still has of control box: the device comprises a data conversion storage module, a data calling module, a data processing module and a sine wave analog conversion module. The output end of the data reading module is electrically connected with the input end of the data conversion storage module, the output end of the data conversion storage module is electrically connected with the input end of the data calling module, and the output end of the data calling module is electrically connected with the input ends of the data processing module and the sine wave analog conversion module respectively.
As a further description of the above technical solution:
the inside still has of control box: the device comprises a boosting unit and a sine wave signal power amplification module. The output end of the sine wave analog conversion module is electrically connected with the input end of the boosting unit, the output end of the boosting unit is electrically connected with the input end of the sine wave signal power amplification module, the output end of the sine wave signal power amplification module is electrically connected with the input end of the sound wave barrel, and the output end of the data processing module is electrically connected with the input end of the power supply module.
As a further description of the above technical solution:
the inside still has of control box: the device comprises a rectifying and filtering unit, a voltage reduction unit and a voltage stabilizing circuit. The output end of the power supply module is electrically connected with the input end of the rectifying and filtering unit, the output end of the rectifying and filtering unit is electrically connected with the input end of the voltage reduction unit, the output end of the voltage reduction unit is electrically connected with the input end of the voltage stabilizing circuit, and the output end of the voltage stabilizing circuit is electrically connected with the input end of the control panel.
As a further description of the above technical solution:
the data conversion storage module comprises: the device comprises a conversion unit, a reading unit and a storage unit. The output end of the conversion unit is electrically connected with the input end of the reading unit, and the output end of the reading unit is electrically connected with the input end of the storage unit.
As a further description of the above technical solution:
the data calling module comprises an identification unit, a digital-to-analog conversion unit, a low-pass filtering unit and a power adjusting unit. The output end of the identification unit is electrically connected with the input end of the digital-to-analog conversion unit, the output end of the digital-to-analog conversion unit is electrically connected with the input end of the low-pass filtering unit, and the output end of the low-pass filtering unit is electrically connected with the input end of the power regulation unit.
As a further description of the above technical solution:
the outside of control box is provided with the braces.
In conclusion, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the first temperature sensor arranged on the sound wave cylinder is arranged, when the fire extinguisher is used, only the fire extinguishing device is required to be close to a fire source, the first temperature sensor can monitor the temperature and transmit data back to the control box, when the monitored temperature exceeds a set standard value, the control box can be automatically controlled, so that the sound wave cylinder is automatically opened to perform sound wave fire extinguishing, and the fire extinguisher has a good automatic induction fire extinguishing function.
2. The second sensor is arranged near the power module in the control box, when the sound wave fire extinguishing device is used, the environment temperature is higher due to the fact that the sound wave fire extinguishing device is close to a fire source, the second sensor can effectively monitor the temperature of the power module, when the sound wave fire extinguishing device is continuously used and the device is continuously located in a high-temperature environment and the monitored temperature of the power module is too high and exceeds a set standard, the control box can be automatically short-circuited, the spontaneous combustion condition of the control box due to the fact that the temperature of the power module is too high is effectively avoided, the use safety can be guaranteed, and the service life of the sound wave fire extinguishing device can be prolonged.
3. The sound wave extinguishing device is internally provided with the rectifying and filtering module and the voltage boosting and reducing unit, when the sound wave cylinder is electrified to work, the rectifying and filtering module and the voltage reducing module can reduce input voltage, so that the voltage is stable, the use effect of the device is ensured, when sound waves are generated, the voltage boosting unit can boost the voltage, so that the generation of the sound waves is more stable, meanwhile, the frequency of the sound waves can be adjusted according to the fire extinguishing requirement, the intensity of the sound waves is improved, and the use effect of the device is ensured.
Drawings
Fig. 1 is a schematic perspective view of a sound wave fire extinguishing device for an oil and gas transmission station.
Fig. 2 is a schematic structural diagram of a system module of the acoustic wave fire extinguishing device which can be used for an oil and gas transmission station.
Fig. 3 is a schematic structural diagram of a subsystem module of a data conversion storage module in a sound wave fire extinguishing device which can be used for an oil and gas transmission station.
Fig. 4 is a schematic structural diagram of a subsystem module of a data calling module in the acoustic wave fire extinguishing device which can be used for an oil and gas transmission station.
Illustration of the drawings:
1. a control box; 2. a harness; 3. a control panel; 4. a data line; 5. a sonic cylinder; 6. a handle; 7. a sound wave reflective inner sheet; 8. a first temperature sensor; 9. a data conversion storage module; 10. and a data calling module.
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. 1-4, the present invention provides a technical solution: a sound wave fire extinguishing device for an oil and gas transmission station comprises a control box 1 and a sound wave cylinder 5, the device comprises a first temperature sensor 8 and a data calling module 10, a control panel 3 is embedded and installed on the top surface of a control box 1, a strap 2 is arranged outside the control box 1, one side of the control box 1 is connected with a sound wave cylinder 5 through a data line 4, a first temperature sensor 8 is fixedly installed in an inner shell cavity of the sound wave cylinder 5, a power supply module is arranged inside the control box 1, a second temperature sensor is fixedly installed on the inner wall of the control box 1 and outside the power supply module, a lifting handle 6 is fixedly installed at the top of the sound wave cylinder 5, a sound wave reflection inner sheet 7 is fixedly installed inside the sound wave cylinder 5, sound waves generated by the device can be reflected to the central position of the sound wave cylinder 5 through the sound wave reflection inner sheet 7, the loss of the sound waves is avoided, the sound wave fire extinguishing effect of the device is guaranteed, and the types of the first temperature sensor;
the output end of the control panel 3 is electrically connected with the input end of the instruction input module, the output end of the second temperature sensor is electrically connected with the input end of the power supply monitoring module, the output end of the first temperature sensor 8 is electrically connected with the input end of the temperature monitoring module, the output ends of the temperature monitoring module, the instruction input module and the power supply monitoring module are all electrically connected with the input end of the data receiving module, the output end of the data receiving module is electrically connected with the input end of the data reading module, the output end of the data reading module is electrically connected with the input end of the data conversion storage module 9, the output end of the data conversion storage module 9 is electrically connected with the input end of the data calling module 10, the output end of the data calling module 10 is respectively electrically connected with the input ends of the data processing module and the sine wave analog conversion module, and the output end of, the output end of the voltage boosting unit is electrically connected with the input end of the sine wave signal power amplification module, the output end of the sine wave signal power amplification module is electrically connected with the input end of the sound wave cylinder 5, the output end of the data processing module is electrically connected with the input end of the power supply module, the output end of the power supply module is electrically connected with the input end of the rectification filter unit, the output end of the rectification filter unit is electrically connected with the input end of the voltage reduction unit, the output end of the voltage reduction unit is electrically connected with the input end of the voltage stabilizing circuit, and the output end of the voltage stabilizing circuit is electrically connected;
as shown in fig. 1-2, the specific implementation is as follows: when the fire extinguisher is used, only the fire extinguishing device is required to be close to a fire source, the first temperature sensor 8 can monitor the temperature and transmit data back to the control box 1, when the monitored temperature exceeds a set standard value, the control box 1 can be automatically controlled to automatically open the sound wave tube 5 to extinguish the fire by sound waves, when the sound wave fire extinguishing device is used, the temperature of the environment is higher due to the position close to the fire source, the second sensor can effectively monitor the temperature of the power module, when the monitored temperature of the power module is overhigh and exceeds the set standard, the control box can automatically short-circuit, thereby effectively avoiding the spontaneous combustion condition of the control box 1 due to overhigh temperature of the power module, ensuring the use safety and the service life of the device, when the sound wave tube 5 works in an electrified way, the rectifying and filtering modules and the voltage reduction modules can reduce the input voltage to stabilize the voltage, the using effect of the device is guaranteed, when sound waves are generated, the boosting unit can boost the pressure, so that the sound waves are more stable to generate, meanwhile, the frequency of the sound waves can be adjusted according to the fire extinguishing requirement, the intensity of the sound waves is improved, and the using effect of the device is guaranteed;
the data conversion and storage module 9 is composed of a conversion unit, a reading unit and a storage unit, wherein the output end of the conversion unit is electrically connected with the input end of the reading unit, the output end of the reading unit is electrically connected with the input end of the storage unit, the data calling module 10 is composed of an identification unit, a digital-to-analog conversion unit, a low-pass filtering unit and a power regulation unit, the output end of the identification unit is electrically connected with the input end of the digital-to-analog conversion unit, the output end of the digital-to-analog conversion unit is electrically connected with the input end of the low-pass filtering unit, and the output end of the low-;
as shown in fig. 3-4, the specific implementation is as follows: the concrete production process of sound wave is for reading peripheral control data information through data reading module, and data are saved through data conversion storage module, produce sine wave analog signal, turn into the signal of telecommunication, through the unit that steps up, step up, can enlarge to sine wave analog signal power, produce the sound wave, finally wear out through sound wave section of thick bamboo 5, and the sound wave is put out a fire to flame, and accessible adjusting power improves sound wave frequency domain and intensity.
The working principle is as follows: when the fire extinguisher is used, only the fire extinguishing device is required to be close to a fire source, the first temperature sensor 8 can monitor the temperature and transmit data back to the control box 1, when the monitored temperature exceeds a set standard value, the control box 1 can be automatically controlled to automatically open the sound wave tube 5 to extinguish the fire by sound waves, when the sound wave fire extinguishing device is used, the temperature of the environment is higher due to the position close to the fire source, the second sensor can effectively monitor the temperature of the power module, when the monitored temperature of the power module is overhigh and exceeds the set standard, the control box can automatically short-circuit, thereby effectively avoiding the spontaneous combustion condition of the control box 1 due to overhigh temperature of the power module, ensuring the use safety and the service life of the device, when the sound wave tube 5 works in an electrified way, the rectifying and filtering modules and the voltage reduction modules can reduce the input voltage to stabilize the voltage, the using effect of the device is ensured, when sound waves are generated, the boosting unit can boost the pressure, so that the sound waves are more stable, meanwhile, the sound wave frequency can be adjusted according to the fire extinguishing requirement, the sound wave intensity is improved, the sound wave generated by the device can be reflected to the central position of the sound wave tube 5 through the sound wave reflection inner sheet 7 by the sound wave reflection inner sheet 7, the loss of the sound waves is avoided, the sound wave fire extinguishing effect of the device is ensured, the specific generation process of the sound waves is that peripheral control data information is read through the data reading module, the data is stored through the data conversion storage module, sine wave analog signals are generated and converted into electric signals, the boosting is performed through the boosting unit, the power of the sine wave analog signals can be amplified, the sound waves are generated, finally the sound waves are transmitted through the sound wave tube 5, the fire extinguishing can be performed on flames, the frequency domain and the intensity of the sound wave are improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims (9)

1. The utility model provides a can be used to sound wave extinguishing device of defeated oil gas station, includes control box (1), sound wave section of thick bamboo (5), first temperature sensor (8), its characterized in that:
a control panel (3) is arranged on the top surface of the control box (1), and the control panel (3) is electrically connected with the control box (1);
one side of the control box (1) is connected with a sound wave cylinder (5) through a data line (4), and a first temperature sensor (8) is fixedly installed in an inner shell cavity of the sound wave cylinder (5);
the inside of control box (1) is provided with power module, the power module outside is located fixed mounting on the inner wall of control box (1) has second temperature sensor, second temperature sensor pass through the data line with control box (1) is connected.
2. A sonic fire-extinguishing device used in oil and gas transmission stations, according to claim 1, characterized in that the top of the sonic tube (5) is fixedly mounted with a handle (6), and the inside of the sonic tube (5) is fixedly mounted with a sonic reflection inner sheet (7).
3. A sonic fire-extinguishing device applicable to oil and gas stations, according to claim 1, characterized in that the control box (1) has inside: the device comprises an instruction input module, a power supply monitoring module, a temperature monitoring module, a data receiving module and a data reading module;
the output of control panel (3) with the input electric connection of instruction input module, the output of second temperature sensor with the input electric connection of power monitoring module, the output of first temperature sensor (8) with the input electric connection of temperature monitoring module, the output of temperature monitoring module, instruction input module and power monitoring module all with the input electric connection of data receiving module, the output of data receiving module with the input electric connection of data reading module.
4. A sonic fire-extinguishing device applicable to oil and gas stations, according to claim 3, characterized in that the control box (1) has inside it also: the device comprises a data conversion storage module (9), a data calling module (10), a data processing module and a sine wave analog conversion module;
the output end of the data reading module is electrically connected with the input end of the data conversion storage module (9), the output end of the data conversion storage module (9) is electrically connected with the input end of the data calling module (10), and the output end of the data calling module (10) is electrically connected with the input ends of the data processing module and the sine wave analog conversion module respectively.
5. A sonic fire-extinguishing device applicable to oil and gas stations, according to claim 4, characterized in that the control box (1) has inside it also: the device comprises a boosting unit and a sine wave signal power amplification module;
the output end of the sine wave analog conversion module is electrically connected with the input end of the boosting unit, the output end of the boosting unit is electrically connected with the input end of the sine wave signal power amplification module, the output end of the sine wave signal power amplification module is electrically connected with the input end of the sound wave cylinder (5), and the output end of the data processing module is electrically connected with the input end of the power supply module.
6. A sonic fire-extinguishing device applicable to oil and gas stations, according to claim 5, characterized in that the control box (1) has inside it also: the voltage-reducing circuit comprises a rectification filtering unit, a voltage-reducing unit and a voltage-stabilizing circuit;
the output end of the power supply module is electrically connected with the input end of the rectification filter unit, the output end of the rectification filter unit is electrically connected with the input end of the voltage reduction unit, the output end of the voltage reduction unit is electrically connected with the input end of the voltage stabilizing circuit, and the output end of the voltage stabilizing circuit is electrically connected with the input end of the control panel (3).
7. A sonic fire-extinguishing device applicable to oil and gas stations, according to claim 4, characterized in that the data conversion and storage module (9) comprises: the device comprises a conversion unit, a reading unit and a storage unit;
the output end of the conversion unit is electrically connected with the input end of the reading unit, and the output end of the reading unit is electrically connected with the input end of the storage unit.
8. The acoustic fire extinguishing device for oil and gas transmission stations according to claim 4, characterized in that the data calling module (10) comprises an identification unit, a digital-to-analog conversion unit, a low-pass filtering unit and a power regulation unit;
the output end of the identification unit is electrically connected with the input end of the digital-to-analog conversion unit, the output end of the digital-to-analog conversion unit is electrically connected with the input end of the low-pass filtering unit, and the output end of the low-pass filtering unit is electrically connected with the input end of the power regulation unit.
9. A sonic fire-extinguishing device applicable to oil and gas stations, according to claim 1, characterized in that the control box (1) is externally provided with a harness (2).
CN202110378426.0A 2021-04-08 2021-04-08 Sound wave fire extinguishing device for oil and gas transmission station Pending CN112915429A (en)

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Application Number Priority Date Filing Date Title
CN202110378426.0A CN112915429A (en) 2021-04-08 2021-04-08 Sound wave fire extinguishing device for oil and gas transmission station

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Application Number Priority Date Filing Date Title
CN202110378426.0A CN112915429A (en) 2021-04-08 2021-04-08 Sound wave fire extinguishing device for oil and gas transmission station

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Publication Number Publication Date
CN112915429A true CN112915429A (en) 2021-06-08

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CN109833574A (en) * 2017-11-29 2019-06-04 西安仁科电子科技有限公司 A kind of intelligent sound wave fire extinguisher
CN110064147A (en) * 2019-05-30 2019-07-30 彭思诚 The sound wave fire extinguisher of automatic monitoring tracking
KR101982069B1 (en) * 2018-04-24 2019-08-28 주식회사 나노메딕스 Handy-Type Spray Cooperating Sound Wave Extinguisher
CN110279954A (en) * 2019-06-19 2019-09-27 西安石油大学 A kind of power adjustable formula sound wave extinguishing device
CN112213645A (en) * 2020-10-10 2021-01-12 成都奥瑞克新能源科技有限公司 Line monitoring system for mining storage battery

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201002383A (en) * 2008-07-11 2010-01-16 Ching-Wu Wang Sound fire extinguisher and its fire-extinguishing system
CN105099146A (en) * 2014-05-14 2015-11-25 台达电子工业股份有限公司 Fan system, multiple power input voltage regulator module and method
CN205391536U (en) * 2016-03-08 2016-07-27 吉林铁道职业技术学院 Portable sound wave fire extinguisher of intelligence
CN106100471A (en) * 2016-07-29 2016-11-09 苏州聚力电机有限公司 A kind of DC brushless motor fan circuit structure having boosting driving function
CN205987494U (en) * 2016-08-12 2017-02-22 江苏昊泽瑞消防科技有限公司 Emergency lighting lamp with singlechip control of charge and discharge
CN106385184A (en) * 2016-09-30 2017-02-08 广西大学 Adjustable switching power supply
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KR101982069B1 (en) * 2018-04-24 2019-08-28 주식회사 나노메딕스 Handy-Type Spray Cooperating Sound Wave Extinguisher
CN109224351A (en) * 2018-09-26 2019-01-18 马力 Orient sound wave fire extinguisher
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CN110279954A (en) * 2019-06-19 2019-09-27 西安石油大学 A kind of power adjustable formula sound wave extinguishing device
CN112213645A (en) * 2020-10-10 2021-01-12 成都奥瑞克新能源科技有限公司 Line monitoring system for mining storage battery

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Application publication date: 20210608

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