CN109488455A - A kind of diesel engine explosion-proof monitoring system based on explosion-proof sensor - Google Patents
A kind of diesel engine explosion-proof monitoring system based on explosion-proof sensor Download PDFInfo
- Publication number
- CN109488455A CN109488455A CN201811303401.9A CN201811303401A CN109488455A CN 109488455 A CN109488455 A CN 109488455A CN 201811303401 A CN201811303401 A CN 201811303401A CN 109488455 A CN109488455 A CN 109488455A
- Authority
- CN
- China
- Prior art keywords
- explosion
- diesel engine
- module
- proof
- sensor
- 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.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 230000002159 abnormal effect Effects 0.000 claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 239000000523 sample Substances 0.000 claims abstract description 11
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims description 11
- 238000007726 management method Methods 0.000 claims description 9
- 239000000498 cooling water Substances 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 5
- 239000010687 lubricating oil Substances 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 claims description 3
- 238000009530 blood pressure measurement Methods 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims description 2
- 239000010720 hydraulic oil Substances 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 4
- 239000003245 coal Substances 0.000 description 9
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
- F02D17/04—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling rendering engines inoperative or idling, e.g. caused by abnormal conditions
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The present invention relates to explosion-proof monitoring system technical fields, especially a kind of diesel engine explosion-proof monitoring system based on explosion-proof sensor, including detection unit, electric cabinet, execution unit and recovery start unit, water level detecting module is electrically connected with water level sensor, temperature detecting module is electrically connected with temperature sensor, gas management module is electrically connected with firedamp sensor, Rotating speed measring module is electrically connected with speed probe, pressure detecting module is electrically connected with explosion-proof sensor, electric cabinet includes processor, the signal receiving module and protective module being electrically connected with processor, execution unit includes shutting down device and alarm device.Benefit of the invention can be shut down rapidly when diesel engine is abnormal, and avoid that safety accident occurs well.
Description
Technical field
The present invention relates to explosion-proof monitoring system technical field more particularly to a kind of diesel engine based on explosion-proof sensor are explosion-proof
Monitoring system.
Background technique
With the fast development of economic construction of China, the industry such as coal constantly develops towards the direction of mechanization, automation,
Various coal minings and transporting equipment are more and more widely used in various coal minings construction, in the driving exploitation and transport of coal mine roadway
During, it needs using many coal mine special vehicles, diesel engine is with its biggish power and lower use cost quilt
It is widely used on the special vehicle of coal mine, due to there is a large amount of volatile gas in the special producing environment of coal mine roadway
Body will lead to temperature to increase to be more than explosivity gas when the heat that diesel engine generates during the work time is more than specified value
When the burning point of body, it will cause and the explosion catastrophic consequence of lamp occurs in coal mine, therefore, diesel oil used in coal production is necessary
With explosion-proof, when diesel engine delivery temperature in use, body surface temperature and cooling water temperature, cistern water level,
When any one such as engine oil pressure are exceeded, it is all likely to result in danger, so needing to monitor diesel engine in real time, needs one
Kind is capable of the explosion protection system of real-time monitoring diesel engine.
Summary of the invention
The purpose of the present invention is to solve lacking for the working condition for being unable to real-time monitoring diesel engine exists in the prior art
Point, and a kind of diesel engine explosion-proof monitoring system based on explosion-proof sensor proposed.
To achieve the goals above, present invention employs following technical solutions:
It designs a kind of diesel engine explosion-proof monitoring system based on explosion-proof sensor, including detection unit, electric cabinet, executes list
Member and recovery start unit, the detection unit includes water level detecting module, temperature detecting module, gas management module, revolving speed
Detection module, pressure detecting module and signal transmitting module, the water level detecting module, temperature detecting module, gas management mould
Block, Rotating speed measring module, pressure detecting module are electrically connected with signal transmitting module, and the water level detecting module is electrically connected
There is water level sensor, for the water level sensor for detecting real time water level in diesel engine radiator, the temperature detecting module is electrical
It is connected with temperature sensor, the temperature sensor is used to detect the delivery temperature, body surface temperature and cooling water of diesel engine
Temperature, the gas management module are electrically connected with firedamp sensor, and the firedamp sensor is for detecting diesel engine building ring
Gas density in border, the Rotating speed measring module are electrically connected with speed probe, and the speed probe is for detecting bavin
The mechanical separator speed of oil machine, the pressure detecting module are electrically connected with explosion-proof sensor, and the explosion-proof sensor is for detecting profit
Lubricating oil pressure, hydraulic fluid pressure and compression pocket pressure, the electric cabinet include processor, the signal with processor electric connection
Receiving module and protective module, the signal receiving module is for receiving the data-signal that all the sensors detect, including water
Position signal, temperature signal, pressure signal, gas density signal and tach signal, the effect of the protective module are to work as diesel engine
In detection data when occurring abnormal, system can issue corresponding protection instruction, and execute order by protective module sending, described
Execution unit includes shutting down device and alarm device, and the effect for shutting down device is the institute when the detection data of diesel engine occurs abnormal
Stating shutdown device can make acceleration cable disconnect, so that diesel engine stops working, the effect of the alarm device is the inspection when diesel engine
When measured data occurs abnormal, corresponding warning beep can be issued by loudspeaker, remind staff to repair, the recovery is opened
After the completion of the effect of moving cell is the maintenance work when diesel engine, can be artificial or system restores starting diesel engine automatically, this takes
Certainly and whether staff closes system in shutdown maintenance.
Preferably, the water level sensor needs to meet the regulation of the equipment in GB3836.4-2000, and rated operational voltage is
0.5V, the setting value of water level are 150 millimeters or so, and error is no more than 5 millimeters.
Preferably, the temperature sensor needs to meet the regulation of the equipment in GB3836.4-2000, and voltage rating is
0.2V, measurement temperature range are 0-200 degrees Celsius, and standard setting temperature is 70 degrees Celsius, and error is no more than 2 degrees Celsius.
Preferably, the firedamp sensor needs to meet the regulation of the equipment in GB3836.4-2000, and rated operational voltage is
6V, the measurement range of gas air concentration are 0-4%.
Preferably, the speed probe needs to meet the regulation of the equipment in GB3836.4-2000, and rated operational voltage is
6V, standard setting revolving speed are 2500r/min, and the range of speeds of measurement is 0-5000r/min, does not avoid mechanical failure, works as diesel oil
After machine revolving speed is exceeded after a certain period of time can hard stop, wherein delay time has staff's setting.
Preferably, the explosion-proof sensing needs to meet the regulation of the equipment in GB3836.4-2000, and rated operational voltage is
6V, standard setting pressure is 0.08mpa, pressure measurement range 0.05-0.15mpa, in order to avoid diesel engine powers on
When normal starting, the case where insufficient pressure leads to false alarm, the explosion-proof sensing is just practicable after 20 seconds after being powered up
Detection function.
Preferably, the shutdown device needs to meet the equipment in GB3826.9-1990 and provides, rated operational voltage 24V,
The shutdown device, which has, to be quick on the draw, and low water level, delivery temperature, body surface temperature, cooling water temperature, lubrication can occur
When oil pressure, hydraulic fluid pressure, compressed air pressure, mechanical separator speed and air gas density occur abnormal, accurately and reliably certainly
It is dynamic to stop machine operation.
A kind of diesel engine explosion-proof monitoring system based on explosion-proof sensor proposed by the present invention, beneficial effect are: this hair
Low water level, delivery temperature, body surface temperature, cooling water can occur for the bright working condition for capableing of real-time monitoring diesel engine
Temperature, when lubricating oil pressure, hydraulic fluid pressure, compressed air pressure, mechanical separator speed and air gas density occur abnormal, accurately
It reliably is automatically stopped machine operation, avoids that safety accident occurs.
Detailed description of the invention
Fig. 1 is a kind of system block diagram of the diesel engine explosion-proof monitoring system based on explosion-proof sensor proposed by the present invention；
Fig. 2 is the execution unit of the diesel engine explosion-proof monitoring system based on explosion-proof sensor proposed by the present invention a kind of and extensive
The system block diagram of multiple start unit.
In figure: detection unit 1, execution unit 3, restores start unit 4, water level detecting module 11, temperature inspection at electric cabinet 2
Survey module 12, gas management module 13, Rotating speed measring module 14, pressure detecting module 15, signal transmitting module 16, level sensor
Device 111, temperature sensor 121, firedamp sensor 131, speed probe 141, explosion-proof sensor 151, signal receiving module 21,
Processor 22, shuts down device 31, alarm device 32 at protective module 23.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-2, a kind of diesel engine explosion-proof monitoring system based on explosion-proof sensor, including detection unit 1, electric cabinet
2, execution unit 3 and recovery start unit 4, detection unit 1 include water level detecting module 11, temperature detecting module 12, gas inspection
Survey module 13, Rotating speed measring module 14, pressure detecting module 15 and signal transmitting module 16, water level detecting module 11, temperature inspection
Module 12, gas management module 13, Rotating speed measring module 14, pressure detecting module 15 is surveyed electrically to connect with signal transmitting module 16
It connects, water level detecting module 11 is electrically connected with water level sensor 111, and water level sensor 111 is real in diesel engine radiator for detecting
Shi Shuiwei, temperature detecting module 12 are electrically connected with temperature sensor 121, and temperature sensor 121 is used to detect the row of diesel engine
Temperature degree, body surface temperature and cooling water temperature, gas management module 13 are electrically connected with firedamp sensor 131, and gas passes
Sensor 131 is used to detect the gas density in diesel engine working environment, and Rotating speed measring module 14 is electrically connected with speed probe
141, speed probe 141 is used to detect the mechanical separator speed of diesel engine, and pressure detecting module 15 is electrically connected with explosion-proof sensor
151, explosion-proof sensor 151 includes processing for detecting lubricating oil pressure, hydraulic fluid pressure and compression pocket pressure, electric cabinet 2
Device 22, the signal receiving module 21 being electrically connected with processor 22 and protective module 23, signal receiving module 21 is for receiving institute
There are the data-signal that sensor detects, including water level signal, temperature signal, pressure signal, gas density signal and revolving speed letter
Number, the effect of protective module 23 is when the detection data in diesel engine occurs abnormal, and system can issue corresponding protection instruction,
And order is executed by the sending of protective module 23, execution unit 3 includes shutting down device 31 and alarm device 32, and the effect for shutting down device 31 is to work as
When the detection data of diesel engine occurs abnormal, 31 meeting of device is shut down so that acceleration cable disconnection, so that diesel engine stops working, alarm
The effect of device 32 is to issue corresponding warning beep by loudspeaker when the detection data of diesel engine occurs abnormal, remind work
Repaired as personnel, restore start unit 4 effect be maintenance work when diesel engine after the completion of, can be artificial or system from
Dynamic to restore starting diesel engine, this depends on and whether staff closes system in shutdown maintenance.
Wherein, water level sensor 111 needs to meet the regulation of the equipment in GB3836.4-2000, and rated operational voltage is
0.5V, the setting value of water level are 150 millimeters, and error is no more than 5 millimeters；Temperature sensor 121 needs to meet GB3836.4-2000
In equipment regulation, voltage rating 0.2V, measurement temperature range be 0-200 degrees Celsius, standard setting temperature be 70 degrees Celsius,
Error is no more than 2 degrees Celsius；Firedamp sensor 131 needs to meet the regulation of the equipment in GB3836.4-2000, rated operational voltage
For 6V, the measurement range of gas air concentration is 0-4%；Speed probe 141 needs to meet the equipment in GB3836.4-2000
Regulation, rated operational voltage 6V, standard setting revolving speed are 2500r/min, and the range of speeds of measurement is 0-5000r/min, not
Avoid mechanical failure, after diesel engine speed is exceeded after a certain period of time can hard stop, wherein delay time has staff
Setting；Explosion-proof sensing 151 needs to meet the regulation of the equipment in GB3836.4-2000, rated operational voltage 6V, standard setting pressure
Power is 0.08mpa, pressure measurement range 0.05-0.15mpa, in order to avoid diesel engine powers on and normal starting when,
Insufficient pressure causes the case where false alarm, and explosion-proof sensing 151 is after being powered up after 20 seconds with regard to practicable detection function；Shut down device
31 need to meet the equipment regulation in GB3826.9-1990, and rated operational voltage 24V, shutdown device 31, which has, to be quick on the draw, energy
Enough that low water level is occurring, delivery temperature, body surface temperature, cooling water temperature, lubricating oil pressure, hydraulic fluid pressure, compression are empty
When atmospheric pressure, mechanical separator speed and air gas density occur abnormal, it is accurately and reliably automatically stopped machine operation.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of diesel engine explosion-proof monitoring system based on explosion-proof sensor, including detection unit (1), electric cabinet (2), execute list
First (3) and restore start unit (4), which is characterized in that the detection unit (1) includes water level detecting module (11), temperature inspection
Survey module (12), gas management module (13), Rotating speed measring module (14), pressure detecting module (15) and signal transmitting module
(16), the water level detecting module (11), temperature detecting module (12), gas management module (13), Rotating speed measring module (14),
Pressure detecting module (15) is electrically connected with signal transmitting module (16), and the water level detecting module (11) is electrically connected with water
Level sensor (111), the water level sensor (111) is for detecting real time water level in diesel engine radiator, the temperature detection mould
Block (12) is electrically connected with temperature sensor (121), the temperature sensor (121) be used for detect diesel engine delivery temperature,
Body surface temperature and cooling water temperature, the gas management module (13) are electrically connected with firedamp sensor (131), and described watt
This sensor (131) is used to detect the gas density in diesel engine working environment, and the Rotating speed measring module (14) is electrically connected
Have speed probe (141), the speed probe (141) is used to detect the mechanical separator speed of diesel engine, the pressure detecting mould
Block (15) is electrically connected with explosion-proof sensor (151), and the explosion-proof sensor (151) is for detecting lubricating oil pressure, hydraulic oil
Pressure and compression pocket pressure, the electric cabinet (2) include processor (22), the signal being electrically connected with processor (22) reception
Module (21) and protective module (23), the signal receiving module (21) are used to receive the data letter that all the sensors detect
Number, including water level signal, temperature signal, pressure signal, gas density signal and tach signal, the work of the protective module (23)
With being when the detection data in diesel engine occurs abnormal, system can issue corresponding protection instruction, and by protective module (23)
Sending executes order, and the execution unit (3) includes shutting down device (31) and alarm device (32), and the effect for shutting down device (31) is
When the detection data of diesel engine occurs abnormal, shutdown device (31) meeting is so that acceleration cable disconnects, so that diesel engine stops
Work, the effect of the alarm device (32) can be issued by loudspeaker corresponding when the detection data of diesel engine occurs abnormal
Warning beep reminds staff to repair, and the effect for restoring start unit (4) is when the maintenance mans of diesel engine finish
Cheng Hou, can be artificial or system restores starting diesel engine automatically, this depends on and whether staff closes in shutdown maintenance and be
System.
2. a kind of diesel engine explosion-proof monitoring system based on explosion-proof sensor according to claim 1, which is characterized in that institute
It states the equipment that water level sensor (111) needs to meet in GB3836.4-2000 to provide, rated operational voltage 0.5V, water level
Setting value is 150 millimeters or so, and error is no more than 5 millimeters.
3. a kind of diesel engine explosion-proof monitoring system based on explosion-proof sensor according to claim 1, which is characterized in that institute
It states the equipment that temperature sensor (121) needs to meet in GB3836.4-2000 to provide, voltage rating 0.2V measures temperature model
Enclosing is 0-200 degrees Celsius, and standard setting temperature is 70 degrees Celsius, and error is no more than 2 degrees Celsius.
4. a kind of diesel engine explosion-proof monitoring system based on explosion-proof sensor according to claim 1, which is characterized in that institute
It states the equipment that firedamp sensor (131) needs to meet in GB3836.4-2000 to provide, rated operational voltage 6V, gas air
The measurement range of concentration is 0-4%.
5. a kind of diesel engine explosion-proof monitoring system based on explosion-proof sensor according to claim 1, which is characterized in that institute
It states the equipment that speed probe (141) needs to meet in GB3836.4-2000 to provide, rated operational voltage 6V, standard setting
Revolving speed is 2500r/min, and the range of speeds of measurement is 0-5000r/min, mechanical failure is not avoided, after diesel engine speed is exceeded
After a certain period of time can hard stop, wherein delay time has staff's setting.
6. a kind of diesel engine explosion-proof monitoring system based on explosion-proof sensor according to claim 1, which is characterized in that institute
It states the equipment that explosion-proof sensing (151) needs to meet in GB3836.4-2000 to provide, rated operational voltage 6V, standard setting pressure
Power is 0.08mpa, pressure measurement range 0.05-0.15mpa, in order to avoid diesel engine powers on and normal starting when,
Insufficient pressure causes the case where false alarm, and the explosion-proof sensing (151) is after being powered up after 20 seconds with regard to practicable detection function.
7. a kind of diesel engine explosion-proof monitoring system based on explosion-proof sensor according to claim 1, which is characterized in that institute
It states the equipment that shutdown device (31) needs to meet in GB3826.9-1990 to provide, rated operational voltage 24V, the shutdown device
(31) have and be quick on the draw, low water level, delivery temperature, body surface temperature, cooling water temperature, lubrication pressure can occur
When power, hydraulic fluid pressure, compressed air pressure, mechanical separator speed and air gas density occur abnormal, accurately and reliably stop automatically
Only machine operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811303401.9A CN109488455A (en) | 2018-11-02 | 2018-11-02 | A kind of diesel engine explosion-proof monitoring system based on explosion-proof sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811303401.9A CN109488455A (en) | 2018-11-02 | 2018-11-02 | A kind of diesel engine explosion-proof monitoring system based on explosion-proof sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109488455A true CN109488455A (en) | 2019-03-19 |
Family
ID=65693765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811303401.9A Pending CN109488455A (en) | 2018-11-02 | 2018-11-02 | A kind of diesel engine explosion-proof monitoring system based on explosion-proof sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109488455A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735712A (en) * | 2019-11-07 | 2020-01-31 | 徐州众信矿业科技有限公司 | mining equipment engine temperature detection and adjustment device and method |
| CN110856300A (en) * | 2019-10-18 | 2020-02-28 | 山西矿为食品科技有限公司 | Explosion-proof mining intelligent food heating device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201433820Y (en) * | 2009-06-08 | 2010-03-31 | 昆山晋桦豹胶轮车制造有限公司 | Electrical automatic protection device of explosion-proof diesel locomotive |
| CN101825014A (en) * | 2010-04-22 | 2010-09-08 | 吉林长城机械制造有限公司 | Automatic protection device for coal mine explosion-proof diesel locomotive |
| CN105201671A (en) * | 2015-10-09 | 2015-12-30 | 成都天地直方发动机有限公司 | Electronic control system for mining anti-explosion electronic injection diesel locomotive |
-
2018
- 2018-11-02 CN CN201811303401.9A patent/CN109488455A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201433820Y (en) * | 2009-06-08 | 2010-03-31 | 昆山晋桦豹胶轮车制造有限公司 | Electrical automatic protection device of explosion-proof diesel locomotive |
| CN101825014A (en) * | 2010-04-22 | 2010-09-08 | 吉林长城机械制造有限公司 | Automatic protection device for coal mine explosion-proof diesel locomotive |
| CN105201671A (en) * | 2015-10-09 | 2015-12-30 | 成都天地直方发动机有限公司 | Electronic control system for mining anti-explosion electronic injection diesel locomotive |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110856300A (en) * | 2019-10-18 | 2020-02-28 | 山西矿为食品科技有限公司 | Explosion-proof mining intelligent food heating device |
| CN110735712A (en) * | 2019-11-07 | 2020-01-31 | 徐州众信矿业科技有限公司 | mining equipment engine temperature detection and adjustment device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112863116B (en) | Intelligent diagnosis and alarm display method for deflagration of coal pulverizing system of thermal power plant | |
| CN102174899A (en) | Intelligent regulation and control system for safe coal bed gas gathering and transportation in coal mine area | |
| CN109488455A (en) | A kind of diesel engine explosion-proof monitoring system based on explosion-proof sensor | |
| CN201991524U (en) | Intelligent control system for safe gathering and transportation of coalbed gas in coal mine area | |
| CN205879533U (en) | Motor bearing on -line monitoring and intelligent early warning system | |
| CN104180922B (en) | Electricity generator stator core temperature checking method based on Fibre Optical Sensor | |
| CN204388908U (en) | A kind of power station coal pulverizer duty on-Line Monitor Device | |
| CN102298116A (en) | Vehicle-mounted monitoring device for temperature detection and diagnosis alarm of vehicle-mounted storage battery pack | |
| CN206267191U (en) | Well lid detection warning device based on Radio Transmission Technology | |
| CN110886968B (en) | Natural gas riser early warning system based on optical fiber sensing | |
| CN209280025U (en) | A kind of intelligence community pipeline construction safety warning system of low-power consumption | |
| CN209340188U (en) | A kind of centrifugal fan sensory perceptual system | |
| CN112445196A (en) | Mine fan self-healing decision support system and method based on scheduling emergency plan | |
| CN213576857U (en) | Oil gas pipeline leakage online monitoring system capable of early warning in advance | |
| CN102201149A (en) | Device for centralized monitoring and warning of civil gas leak | |
| CN105785926A (en) | CAN bus-based offshore wind turbine generator monitoring system | |
| CN208689743U (en) | Wireless transmission type vibration and temperature detection device | |
| CN202350906U (en) | Combined rotating machinery monitoring protection system | |
| CN204405540U (en) | A kind of infrared methane detection alarm instrument with magnetic sheet calibration function | |
| CN107703347A (en) | The early warning system of broken hidden danger source vehicle outside a kind of high-tension line | |
| CN206268045U (en) | A kind of diesel engine Firefighting Pump Control System | |
| CN204082446U (en) | Based on the offshore wind farm unit comprehensive monitoring system of 6LoWPAN radio sensing network | |
| CN219694489U (en) | Online vibration monitoring and data acquisition device for main exhaust fan of rotary kiln | |
| CN203626890U (en) | Gas monitor system for gas tunnel prevention and control | |
| CN206988157U (en) | A kind of intellectual control device for double circuit fan |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190319 |