CN114607506A - Wireless protection device for mining explosion-proof diesel engine - Google Patents
Wireless protection device for mining explosion-proof diesel engine Download PDFInfo
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- CN114607506A CN114607506A CN202210210609.6A CN202210210609A CN114607506A CN 114607506 A CN114607506 A CN 114607506A CN 202210210609 A CN202210210609 A CN 202210210609A CN 114607506 A CN114607506 A CN 114607506A
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- 238000005065 mining Methods 0.000 title claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 238000004891 communication Methods 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 10
- 230000000087 stabilizing effect Effects 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 6
- 239000002912 waste gas Substances 0.000 claims description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 231100000279 safety data Toxicity 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a wireless protection device for a mining explosion-proof diesel engine, which is applied to the technical field of monitoring systems and comprises the following components: the device comprises a main controller, a temperature detection module, a gas acquisition module, an alarm module, a wireless communication module and a control module, wherein the temperature detection module is electrically connected with the main controller; the invention collects corresponding vehicle operation parameters by means of various sensors arranged outside, alarms according to configuration after the parameters are out of limit, and drives a flameout electromagnetic valve to carry out engine safety protection when necessary.
Description
Technical Field
The invention relates to the technical field of monitoring systems, in particular to a wireless protection device for a mining explosion-proof diesel engine.
Background
At present, with the improvement of the mechanization and automation degree of a coal mine, a mine vehicle taking an explosion-proof diesel engine as power is widely applied to the tunneling exploitation of a coal mine tunnel and the process of transporting manpower and materials due to the characteristics of long transportation distance, convenience in maintenance, high transportation efficiency and the like. Because a large amount of explosive gas exists in the special production environment of a coal mine, the diesel engine is structurally explosion-proof and also has a safety protection system for monitoring items such as exhaust temperature, cooling water temperature, surface temperature, engine oil pressure, methane concentration and the like. When a certain monitoring item is abnormal, the diesel engine safety protection system sends out an audible and visual alarm signal and stops the diesel engine within a set time, so that the damage of the diesel engine and gas explosion accidents caused by overhigh temperature are avoided.
However, in the prior art, the diesel engine protection device lacks a wireless data transmission function, and a worker cannot obtain fault information in time; and the circuit structure is more complicated.
Therefore, how to provide a wireless protection device for an explosion-proof diesel engine for mining, which can solve the above problems, is a problem that needs to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the above, the invention provides a wireless protection device for a mining explosion-proof diesel engine, which collects corresponding vehicle operation parameters by means of various sensors installed outside, alarms according to configuration after the parameters exceed the limits, and drives a flameout solenoid valve to perform engine safety protection if necessary.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a mining explosion-proof diesel engine wireless protection device, installs on mining trackless rubber-tyred car, includes:
the main controller is used for realizing the whole data processing function;
the temperature detection module is electrically connected with the main controller and is used for acquiring temperature data of the surface of the diesel engine and sending the temperature data to the main controller for processing;
the gas acquisition module is electrically connected with the main controller and used for acquiring concentration data of the generated waste gas and sending the concentration data to the main controller for processing;
the alarm module is electrically connected with the main controller and used for giving an alarm prompt according to a processing result of the main controller;
and the wireless communication module is in wireless communication connection with the main controller and is used for wirelessly transmitting the temperature data and the waste gas concentration data.
Preferably, the method further comprises the following steps: and the power module is electrically connected with the main controller and used for providing electric energy.
Preferably, the method further comprises the following steps: the vehicle speed acquisition module is electrically connected with the main controller and used for acquiring the speed data of the vehicle.
Preferably, the method further comprises the following steps: and the liquid level acquisition module is electrically connected with the main controller and is used for acquiring the cooling water level data of the diesel engine.
Preferably, the gas collection module comprises: methane detecting element and carbon monoxide detecting element that independent setting.
Preferably, the temperature detection module specifically comprises an acquisition unit and a conversion unit which are connected in sequence.
Preferably, the collecting unit includes: a plurality of electronic components;
wherein one end of a resistor R40 is connected with the anode of a voltage regulator diode and one end of a resistor R44, the other end of the resistor R44 is connected with a pin 2 of a chip U10A, a pin 1 of the chip U10A is connected with the cathode of the voltage regulator diode, a pin 3 of the chip U10A is connected with one end of a resistor R52, the other end of the resistor R52 is connected with one end of a resistor R68628, one end of a resistor R57 and a thermistor A, the other end of the resistor R54 is connected with a pin 1 of the chip U10A, the other end of the resistor R57 is connected with a pin 5 of the chip U10B, a pin 6 of the chip U10B is connected with one end of a resistor R66, the other end of the resistor R66 is connected with a pin 7 of the chip U10B and one end of a resistor R59, the other end of the resistor R59 is connected with a pin 3 of the chip U14A, and one end of a pin 2 of a resistor R A and one end of a resistor R74 are connected with the resistor R75, pin 1 of the chip U14A is connected to the other end of the resistor R75, the other end of the resistor R74 is connected to pin 7 of the chip U14B and one end of the resistor R73, the other end of the resistor R73 is connected to one end of the resistor R72 and pin 6 of the chip U14B, pin 5 of the chip U14B is connected to one end of the resistor R68, and the other end of the resistor R68 is connected to the thermistor B.
Preferably, the conversion unit includes: a plurality of electronic components;
one end of a resistor R100 is connected with a power supply voltage, the other end of the resistor R100 is connected with one end of a resistor R101, one end of a resistor R102 and the cathode of a voltage stabilizing diode U22, the other end of the resistor R101 is connected with one end of a resistor R106, the other end of the resistor R106 is connected with the anode of a voltage stabilizing diode U22, the other end of the resistor R102 is connected with a pin 3 of a chip U20, a pin 5 of the chip U20 is connected with the power supply voltage, a pin 4 of the chip U20 is connected with one end of a resistor R108, a pin 1 of the chip U20 is connected with the other end of the resistor R108, the cathode of the voltage stabilizing diode D15 and one end of a resistor R103, the other end of the resistor R103 is mainly controlled is connected with one end of a resistor R104, and the other end of the resistor R104 is connected with one end of a capacitor C51 and the controller.
Preferably, the alarm module specifically includes: a plurality of electronic components;
According to the technical scheme, compared with the prior art, the wireless protection device for the mining explosion-proof diesel engine compares the parameters obtained by measuring the diesel engine in the working process with the set safety data, when any situation possibly influencing the safe working of the diesel engine occurs, the diesel engine protection device starts protection, the diesel engine stops running within the set time, and the wireless protection device cannot enter the normal working state again before the fault or danger is eliminated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a structural schematic block diagram of a wireless protection device of an explosion-proof diesel engine for mining provided by the invention;
FIG. 2 is a schematic circuit diagram of an acquisition unit according to the present invention;
FIG. 3 is a schematic circuit diagram of a conversion unit provided in the present invention;
FIG. 4 is a schematic circuit diagram of an alarm module provided by the present invention;
fig. 5 is a schematic circuit diagram of a vehicle speed acquisition module provided by the invention.
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 the attached figure 1, the embodiment of the invention discloses a wireless protection device of a mining explosion-proof diesel engine, which is arranged on a mining trackless rubber-tyred vehicle and comprises the following components:
the main controller 1 is used for realizing the whole data processing function;
the temperature detection module 2 is electrically connected with the main controller 1, and is used for acquiring temperature data of the surface of the diesel engine and sending the temperature data to the main controller 1 for processing;
the temperature data may further include an exhaust temperature and a cooling water temperature.
The gas acquisition module 3 is electrically connected with the main controller 1 and used for acquiring concentration data of the generated waste gas and sending the concentration data to the main controller 1 for processing;
the alarm module 4 is electrically connected with the main controller 1 and used for giving an alarm according to the processing result of the main controller 1;
and the wireless communication module 5 is in wireless communication connection with the main controller 1 and is used for wirelessly transmitting the temperature data and the waste gas concentration data.
Specifically, when the methane parameter exceeds 0.5%, the carbon monoxide parameter is about 24ppm, the exhaust temperature exceeds 70 ℃, the surface temperature parameter exceeds 150 ℃ and the cooling water temperature exceeds 98 ℃, any one of the parameters reaches an alarm value, the host machine can send a stop signal to trigger a relay of a power supply control power line to act, so that the purpose of driving a flameout solenoid valve is achieved, and the flameout action is completed.
In a specific embodiment, the method further comprises the following steps: and the power module 6 is electrically connected with the main controller 1 and used for providing electric energy.
In a particular embodiment, the gas collection module 3 comprises: a methane detection unit 31 and a carbon monoxide detection unit 32 which are independently arranged.
In a specific embodiment, the temperature detecting module 2 specifically includes a collecting unit 21 and a converting unit 22 connected in sequence,
referring to fig. 2, in one specific embodiment, the acquisition unit 21 includes: a plurality of electronic components;
wherein one end of the resistor R40 is connected with the anode of the zener diode and one end of the resistor R44, the other end of the resistor R44 is connected with the pin 2 of the chip U10A, the pin 1 of the chip U10A is connected with the cathode of the zener diode, the pin 3 of the chip U10A is connected with one end of the resistor R52, the other end of the resistor R52 is connected with one end of the resistor R54, one end of the resistor R57 and the thermistor A, the other end of the resistor R54 is connected with the pin 1 of the chip U10A, the other end of the resistor R57 is connected with the pin 5 of the chip U10 57, the pin 6 of the chip U10 57 is connected with one end of the resistor R57, the other end of the resistor R57 is connected with the pin 7 of the chip U10 57 and one end of the resistor R57, the other end of the resistor R57 is connected with the pin 3 of the chip U14U 57, the pin 2 of the chip U14 is connected with one end of the resistor R57 and one end of the pin 57, the other end of the resistor R57 is connected with the pin 57 and the pin 57 of the pin 57, the other end of the resistor R73 is connected with one end of the resistor R72 and a pin 6 of the chip U14B, a pin 5 of the chip U14B is connected with one end of the resistor R68, and the other end of the resistor R68 is connected with the thermistor B.
Referring to fig. 3, in one particular embodiment, the conversion unit 22 includes: a plurality of electronic components;
one end of a resistor R100 is connected with a power supply voltage, the other end of the resistor R100 is connected with one end of a resistor R101, one end of a resistor R102 and the cathode of a voltage stabilizing diode U22, the other end of the resistor R101 is connected with one end of a resistor R106, the other end of the resistor R106 is connected with the anode of a voltage stabilizing diode U22, the other end of the resistor R102 is connected with a pin 3 of a chip U20, a pin 5 of a chip U20 is connected with the power supply voltage, a pin 4 of a chip U20 is connected with one end of a resistor R108, a pin 1 of a chip U20 is connected with the other end of the resistor R108, the cathode of a voltage stabilizing diode D15 and one end of a resistor R103, the other end of the resistor R103 is connected with one end of a resistor R104, and the other end of the resistor R104 is connected with one end of a capacitor C51 and the main controller 1.
Through the unit, the collected resistance value is converted into a voltage value, and the voltage value is compared with a standard pt100 resistor for conversion.
Referring to fig. 4, in a specific embodiment, the alarm module 4 specifically includes: a plurality of electronic components;
Specifically, the main controller 1 outputs a fault signal high-level signal through calculation, and drives the KM1 solid-state relay by turning on the transistor Q11, so that the relay acts to drive a 12V power supply signal and drive the electromagnetic valve to complete flameout; through driving the solid-state relay, the small current drives the large current, and the driving capability is stronger. And on the aspect of coal mine explosion-proof requirements, the electromagnetic valve can be adapted to a non-intrinsic safety electromagnetic valve, and the applicable electromagnetic valve is wider.
Referring to fig. 5, in a specific embodiment, the method further comprises: the vehicle speed acquisition module 7 is electrically connected with the main controller 1 and is used for acquiring the speed data of the vehicle; the specific circuit comprises:
one end of a resistor R169 is connected with the detection sensor, the other end of the resistor R169 is connected with one end of a resistor R174, the other end of the resistor R174 is connected with one end of a resistor R176 and a pin 1 of a chip U34, a pin 3 of a chip U34 is connected with one end of a resistor R167 and one end of a resistor R168, a pin 4 of a chip U34 is connected with the other end of the resistor R168 and one end of a resistor R175, the other end of the resistor R175 is connected with a base electrode of a triode Q13, a collector electrode of a triode Q13 is connected with one end of a resistor R172 and a main controller 1, and the other end of the resistor R172 is connected with 3.3V voltage.
Data are collected through the circuit, the conversion times per second is N, the frequency f is obtained, and the speed is calculated when the frequency is: v ═ V (2 pi R × f 60 × 60)/(1000 × 100), where R is the tire radius.
In a specific embodiment, the method further comprises the following steps: the liquid level acquisition module 8, liquid level acquisition module 8 and main control unit 1 electric connection for gather the cooling water liquid level data of diesel engine.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The utility model provides a mining explosion-proof diesel engine wireless protection device, installs on mining trackless rubber-tyred car, its characterized in that includes:
a main controller (1) for realizing the whole data processing function;
the temperature detection module (2) is electrically connected with the main controller (1) and is used for acquiring temperature data of the surface of the diesel engine and sending the temperature data to the main controller (1) for processing;
the gas acquisition module (3) is electrically connected with the main controller (1) and is used for acquiring concentration data of generated waste gas and sending the concentration data to the main controller (1) for processing;
the alarm module (4) is electrically connected with the main controller (1) and used for giving an alarm according to a processing result of the main controller (1);
the wireless communication module (5), wireless communication module (5) with main control unit (1) wireless communication is connected, is used for with temperature data reaches exhaust gas concentration data carries out wireless transmission.
2. The wireless protection device for the mining explosion-proof diesel engine according to claim 1, characterized by further comprising: the power supply module (6), the power supply module (6) with main control unit (1) electric connection for provide the electric energy.
3. The wireless protection device for the mining explosion-proof diesel engine according to claim 2, characterized by further comprising: the vehicle speed acquisition module (7), the vehicle speed acquisition module (7) with main control unit (1) electric connection for gather the speed data of vehicle.
4. The wireless protection device for the mining explosion-proof diesel engine according to claim 3, characterized by further comprising: the liquid level acquisition module (8), liquid level acquisition module (8) with main control unit (1) electric connection is used for gathering the cooling water liquid level data of diesel engine.
5. The wireless protection device for the mining explosion-proof diesel engine according to any one of claims 1-4, characterized in that the gas collection module (3) comprises: a methane detection unit (31) and a carbon monoxide detection unit (32) which are independently arranged.
6. The wireless protection device for the mining explosion-proof diesel engine according to any one of claims 1-4, characterized in that the temperature detection module (2) specifically comprises an acquisition unit (21) and a conversion unit (22) which are connected in sequence.
7. The wireless protection device for the mining explosion-proof diesel engine according to claim 6, characterized in that the acquisition unit (21) comprises: a plurality of electronic components;
wherein one end of a resistor R40 is connected with the anode of a voltage regulator diode and one end of a resistor R44, the other end of the resistor R44 is connected with a pin 2 of a chip U10A, a pin 1 of the chip U10A is connected with the cathode of the voltage regulator diode, a pin 3 of the chip U10A is connected with one end of a resistor R52, the other end of the resistor R52 is connected with one end of a resistor R68628, one end of a resistor R57 and a thermistor A, the other end of the resistor R54 is connected with a pin 1 of the chip U10A, the other end of the resistor R57 is connected with a pin 5 of the chip U10B, a pin 6 of the chip U10B is connected with one end of a resistor R66, the other end of the resistor R66 is connected with a pin 7 of the chip U10B and one end of a resistor R59, the other end of the resistor R59 is connected with a pin 3 of the chip U14A, and one end of a pin 2 of a resistor R A and one end of a resistor R74 are connected with the resistor R75, pin 1 of the chip U14A is connected to the other end of the resistor R75, the other end of the resistor R74 is connected to pin 7 of the chip U14B and one end of the resistor R73, the other end of the resistor R73 is connected to one end of the resistor R72 and pin 6 of the chip U14B, pin 5 of the chip U14B is connected to one end of the resistor R68, and the other end of the resistor R68 is connected to the thermistor B.
8. The wireless protection device for the mining explosion-proof diesel engine according to claim 6, characterized in that the conversion unit (22) comprises: a plurality of electronic components;
one end of a resistor R100 is connected with a power supply voltage, the other end of the resistor R100 is connected with one end of a resistor R101, one end of a resistor R102 and the cathode of a voltage stabilizing diode U22, the other end of the resistor R101 is connected with one end of a resistor R106, the other end of the resistor R106 is connected with the anode of a voltage stabilizing diode U22, the other end of the resistor R102 is connected with a pin 3 of a chip U20, a pin 5 of the chip U20 is connected with the power supply voltage, a pin 4 of the chip U20 is connected with one end of a resistor R108, a pin 1 of the chip U20 is connected with the other end of the resistor R108, the cathode of the voltage stabilizing diode D15 and one end of a resistor R103, the other end of the resistor R103 is mainly controlled is connected with one end of a resistor R104, and the other end of the resistor R104 is connected with one end of a capacitor C51 and the controller (1).
9. The wireless protection device for the mining explosion-proof diesel engine according to claim 1, wherein the alarm module (4) specifically comprises: a plurality of electronic components;
pin 2 of the chip U33 is connected with one end of a resistor R160 and the collector of a triode Q10, the other end of the resistor R160 is connected with 3.3V voltage, and pin 3 of the chip U33 is connected with 12V voltage; the base of a triode Q10 is connected with one end of a resistor R161, the other end of the resistor R161 is connected with one end of a resistor R165, the other end of the resistor R165 is connected with the base of a triode Q11, the collector of the triode Q11 is connected with a pin 2 of a chip KM1, a pin 1 of a chip KM1 is connected with one end of a resistor R163, the other end of the resistor R163 is connected with 5V voltage, a pin 4 and a pin 6 of the chip KM1 are connected with a pin 1 of a chip F7, a pin 2 of the chip F7 is connected with the cathode of a voltage stabilizing diode D46, one end of a capacitor C179 and 12V voltage, and the other end of the capacitor C179 is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210210609.6A CN114607506A (en) | 2022-03-04 | 2022-03-04 | Wireless protection device for mining explosion-proof diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210210609.6A CN114607506A (en) | 2022-03-04 | 2022-03-04 | Wireless protection device for mining explosion-proof diesel engine |
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| CN114607506A true CN114607506A (en) | 2022-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210210609.6A Pending CN114607506A (en) | 2022-03-04 | 2022-03-04 | Wireless protection device for mining explosion-proof diesel engine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201554551U (en) * | 2009-11-25 | 2010-08-18 | 三一重型装备有限公司 | Electrical automatic protection device used for explosion-proof diesel engine |
| CN109268155A (en) * | 2018-08-16 | 2019-01-25 | 成都天地直方发动机有限公司 | A kind of electric-control system of mine anti-explosion locomotive |
| CN213574361U (en) * | 2020-11-26 | 2021-06-29 | 山西运创自动化系统有限公司 | Automatic protection device of diesel locomotive |
| CN213838774U (en) * | 2020-11-04 | 2021-07-30 | 莱州亚通重型装备有限公司 | Mining explosion-proof diesel engine protection system with carbon monoxide detection device |
| CN215370044U (en) * | 2021-06-21 | 2021-12-31 | 山西强力矿用设备制造有限公司 | Mining diesel locomotive protection device |
-
2022
- 2022-03-04 CN CN202210210609.6A patent/CN114607506A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201554551U (en) * | 2009-11-25 | 2010-08-18 | 三一重型装备有限公司 | Electrical automatic protection device used for explosion-proof diesel engine |
| CN109268155A (en) * | 2018-08-16 | 2019-01-25 | 成都天地直方发动机有限公司 | A kind of electric-control system of mine anti-explosion locomotive |
| CN213838774U (en) * | 2020-11-04 | 2021-07-30 | 莱州亚通重型装备有限公司 | Mining explosion-proof diesel engine protection system with carbon monoxide detection device |
| CN213574361U (en) * | 2020-11-26 | 2021-06-29 | 山西运创自动化系统有限公司 | Automatic protection device of diesel locomotive |
| CN215370044U (en) * | 2021-06-21 | 2021-12-31 | 山西强力矿用设备制造有限公司 | Mining diesel locomotive protection device |
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