CN113960258B - Lampblack detection system - Google Patents
Lampblack detection system Download PDFInfo
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- CN113960258B CN113960258B CN202111236201.8A CN202111236201A CN113960258B CN 113960258 B CN113960258 B CN 113960258B CN 202111236201 A CN202111236201 A CN 202111236201A CN 113960258 B CN113960258 B CN 113960258B
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- 238000001514 detection method Methods 0.000 title claims abstract description 32
- 239000006233 lamp black Substances 0.000 title claims description 9
- 238000004891 communication Methods 0.000 claims abstract description 80
- 239000000779 smoke Substances 0.000 claims abstract description 43
- 239000003517 fume Substances 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 239000004215 Carbon black (E152) Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 229930195733 hydrocarbon Natural products 0.000 abstract description 4
- -1 methane hydrocarbon Chemical class 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003434 inspiratory effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Air Conditioning Control Device (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
The invention relates to an oil smoke detection system which comprises a control main board, an acquisition module, a display panel and a communication module, wherein the acquisition module, the control main board and the communication module are all connected with the control main board; the control main board comprises a main control chip U11, the main control chip U11 is connected with a plurality of main communicators used for connecting other functional modules, a plurality of electric energy metering IC groups used for measuring current and voltage and a power circuit module, and the main communicators are respectively connected with the acquisition module, the communication module and the control main board. The sensor adopted by the technical scheme provided by the invention has high measurement precision, is higher than the measurement precision of the existing analog quantity method, can reflect the actual emission condition of the oil smoke in real time, directly monitors the real-time data of the concentration particulate matters of the oil smoke and the total non-methane hydrocarbon, and provides real and effective oil smoke data for the environmental protection agency.
Description
Technical Field
The invention belongs to the technical field of oil smoke detection, and relates to an oil smoke detection system.
Background
In order to supervise the oil smoke emission in the catering industry, the country has issued some policies, regulations and technical standards, and according to these regulations and standards, some methods have been practically applied in the years, such as using an oil smoke purifying system and monitoring the oil smoke purifying system, and in order to monitor the oil smoke emission in real time, data acquisition and communication devices are required to be installed.
The existing oil smoke online monitoring system is limited by the technical level, and can only simply monitor the on-off state of each device of the oil smoke purifying system, generally simply consider that the oil smoke emission is normal and up to standard as long as each device is normally opened by a fan and a purifier, or monitor the operation power and the state of the oil smoke purifying device and the like, and judge the working state and the cleanliness of the oil smoke purifying device according to the changes of the parameters, so that the estimation device needs to be cleaned and whether the oil smoke emission is up to standard.
Disclosure of Invention
Aiming at the problems, the invention provides the real-time data for directly monitoring the concentration of the oil smoke particles and the non-methane total hydrocarbon, which provides real and effective oil smoke data for the environmental protection agency, and has stable power supply performance, thereby really achieving the purpose of on-line monitoring of the oil smoke.
The specific technical scheme is as follows:
The oil smoke detection system comprises a control main board, an acquisition module, a display panel and a communication module, wherein the acquisition module, the display panel and the communication module are all connected with the control main board; the control main board comprises a main control chip U11, the main control chip U11 is connected with a plurality of main communicators used for connecting other functional modules, a plurality of electric energy metering IC groups used for measuring current and voltage and a power circuit module, the main communicators are respectively connected with the acquisition module, the communication module and the display panel, and the main control chip U11 is also connected with a fan control module and a purifier control module; the power supply circuit module comprises a power supply input end, a first input circuit, a second input circuit and a third input circuit are connected in parallel with the power supply input end, the first input circuit is connected with the electric energy metering IC group and supplies power for the main control chip U11, the second input circuit is connected with a 4g communication module, the third input circuit is connected with an air pump and supplies power for the air pump, and the main control chip U11 is provided with a feedback driving circuit which is connected to the third input circuit and controls the third input circuit to supply power to the air pump.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
The oil smoke emission detector can know the actual condition of oil smoke emission, can reflect the actual emission condition of oil smoke in real time, is provided with the sensor at the emission port, can reflect the on-site oil smoke concentration information in real time, and the processor can calculate the concentration data to be transmitted out through the communication port after rapidly collecting the information, so that the whole process is completed within 1 second, and the detection and sampling operation speeds are high;
the high-precision sensor adopted by the detection device is matched with a singlechip software calibration algorithm, so that the linear calibration and digital quantification of acquisition precision are realized, the high-precision measurement is realized, the measurement precision is far higher than that of the existing analog quantity method, the oil smoke concentration particulate matters are directly monitored, and real-time data of non-methane total hydrocarbon are provided for the environmental protection bureau; and the lampblack detection adopts an analog sensor, and the interior adopts a software calibration algorithm to improve the precision.
And the oil smoke detects initiative inspiratory mode and carries out air collection, compares in traditional passive inhalation and is difficult for blockking up, can increase life, easily control collection volume, collection speed etc. and control mainboard stability reliability is high, and temperature resistant, cold-resistant, high pressure resistant, and the operation is stable, and the CPU prefers to be stc singlechip, and interference killing feature is strong, storage space is big, power supply performance is stable, and the operation is fast.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a fume detection system according to the present invention;
fig. 2 is a schematic circuit diagram of a control motherboard of the oil smoke detection system according to the present invention;
fig. 3 is a schematic circuit diagram of an acquisition module of the oil smoke detection system of the present invention;
Fig. 4 is a schematic circuit diagram of a display panel of the oil smoke detection system according to the present invention;
fig. 5 is a schematic circuit diagram of a communication module of the oil smoke detection system of the present invention.
Detailed Description
The fume detection system of the present invention will be described in further detail with reference to the accompanying drawings and the following examples.
Examples
Referring to the oil smoke detection system shown in fig. 1 and 2, the oil smoke detection system comprises a control main board 1, a collection module 2, a display panel 3 and a communication module 4, wherein the collection module, the display panel and the communication module are all connected with the control main board; the control main board comprises a main control chip U11, the main control chip U11 is connected with a plurality of main communicators 11 used for connecting other functional modules, a plurality of electric energy metering IC groups 12 used for measuring current and voltage and a power circuit module 13, the main communicators 11 are respectively connected with an acquisition module 2, a communication module 4 and a display panel 3, and the main control chip U11 is also connected with a fan control module 14 and a purifier control module 15; the power circuit module 13 comprises a power input end 130, the power input end is used for connecting a power supply and inputting the power to a circuit, the power input end is connected with a first input circuit 131, a second input circuit 132 and a third input circuit 133 in parallel, the first input circuit 131 is connected with an electric energy metering IC group and supplies power to the main control chip U11, the second input circuit is connected with the 4g communication module 16, the third input circuit is connected with the air pump 5 and supplies power to the air pump, the main control chip U11 is provided with a feedback driving circuit, and the feedback driving circuit is connected to the third input circuit and controls the third input circuit to supply power to the air pump.
Further referring to fig. 2, the internal circuit structure of the control main board is described in detail, the main control chip U11 is connected with a download port CN23, analog signal ports CN15 and CN16 and a plurality of expansion ports, the control main board is also connected with a fan control port CN10 and a purifier remote port CN7, both ports are connected to the main control chip U11 through a relay and a driving circuit, and the control main board is also provided with a function selection switch, an internal memory, an external memory, a system clock and a 4g communication module, which are connected with the main control chip U11.
The main communicator of the main control chip U11 comprises two groups of 485 communication units, each group of 485 communication units is connected to at least two functional interfaces through a protection circuit, at least three groups of electric energy metering ICs are arranged in groups, each group of electric energy metering ICs are connected in parallel with each other and are connected with a power input circuit, the electric energy metering ICs are connected with a current acquisition port through the protection circuit, and the current acquisition port is connected with a transformer.
The main control chip U11 is connected with three electric energy metering ICs through three pins, the electric energy metering ICs are provided with grounding pins, one pin is connected with a protection circuit comprising a diode and a resistor, and the protection circuit is connected to the double-contact downloading port; a plurality of pins of the main control chip U11 are connected to two 485 communication units, any 485 communication unit is connected to 4 pin interfaces of the interfaces through a protection circuit and is used for connecting a sensor and a display screen, and the other group of 485 communication units is connected to a double-pin interface through a protection circuit and is used for connecting a communication module with double contacts and other expansion modules; the main control chip U11 is connected with the 4g communication module through a plurality of pins, the 4g communication module is provided with a plurality of grounding ends and SIM card connecting pins, and the 4g communication module is also connected with the second input circuit through a plurality of pins to supply power for the 4g communication module.
Further with reference to fig. 3, the internal circuit structure of the acquisition module is described in detail, the acquisition module comprises an acquisition chip U6, the acquisition chip U6 is connected with a main communicator of a control main board through a 485 communication unit U12, the acquisition chip U6 is connected with a laser air quality detection module U7 for detecting air quality, a lampblack sensor U8 for measuring lampblack concentration and a temperature and humidity sensor U9 for measuring air temperature and humidity, the acquisition chip U6 is connected with the main communicator through an operational amplifier U10 and a protection circuit, and the acquisition chip U6 is also connected with a downloading port CN4.
One pin of the acquisition chip U6 is connected with the operational amplifier U10, the other pins of the operational amplifier U10 are grounded, one grounding pin is connected to the laser air quality detection module U7, the laser air quality detection module U7 is also connected with one pin of the acquisition chip U6, the grounding pin of the operational amplifier U10 is also connected with the oil smoke sensor U8, one pin of the acquisition chip U6 is directly connected with the temperature and humidity sensor U9, the downloading port CN4 is a four-contact interface, the acquisition chip U6 is connected with three pins of the downloading port CN4, and one pin of the downloading port CN4 is grounded;
the acquisition chip U6 is connected to 4 pins of the 485 communication unit U12 through three pins, two pins of the 485 communication unit U12 are grounded, the other two pins are connected with a protection circuit, and the protection circuit is connected with a four-contact interface used for connecting a main communicator.
Further referring to fig. 4, the internal circuit structure of the display panel is described in detail, the display panel includes a panel chip U3, the panel chip U3 is connected with a main communicator of the control main board through a protection circuit and a 485 communication unit U1, the panel chip U3 is connected with a nixie tube display 31 unit through a driving circuit, and a download port CN2 is further provided on the panel chip U3;
The panel chip U3 is provided with a plurality of grounding pins, two pins are connected with LED display lamps, three pins of the panel chip U3 are connected with a 485 communication unit U1, the 485 communication unit U1 is connected with an interface for connecting a main communicator, three pins of the panel chip U3 are connected to the nixie tube display unit 31, the nixie tube display unit 31 comprises a plurality of groups of connected display nixie tubes, and two pins of the panel chip U3 are connected with a four-contact downloading port CN2.
Further describing the circuit structure of the communication module in detail with reference to fig. 5, the communication module 4 is used for communicating with the control main board, the communication module comprises a communication chip U20, the communication chip U20 is connected with a SIM card chip U19, the communication chip U20 is connected with an operating lamp 41 and an expansion module through a driver, and the communication chip U20 is connected with a main communicator of the control main board through a protection circuit and a 485 communication unit U1; the communication module is provided with an interface CN5, and the interface CN5 is connected with a filter unit and then connected to the communication chip U20 through a transformer, a rectifier bridge and a voltage reduction circuit U17.
The plurality of pins of the communication chip U20 are directly connected with the SIM card chip U19, one end of the SIM card chip U19 is grounded, the plurality of pins of the communication chip U20 are connected to one driver, the other driver is connected with the driver in parallel, the driver is connected with a plurality of LED running lamps, and the three pins of the communication chip U20 are connected with the filter unit group Hu Jiner and the interface CN5.
The circuit adopts distributed layout, and is realized according to function modularization, and the acquisition module can be arranged on an acquisition site to acquire lampblack information in real time. While other modules may be disposed at the operation site for ease of operation and observation. The two can realize long-distance transmission according to the needs, and the practical construction and application are convenient.
And the modularization of the system is convenient for installation and later maintenance, and simultaneously, a plurality of acquisition modules can be arranged on different acquisition sites for an application scene requiring a plurality of scattered detection parts, and a set of control main board modules are shared, so that the system architecture is simplified, and the cost is saved.
The control main board, the acquisition module, the display panel and the communication module are respectively provided with a core processor chip. Each processor chip completes the specific functions of the processor chip, and the real-time performance of acquisition operation, display and transmission is ensured. The problems that in the prior art, the functions are concentrated into one module, the processing operation pressure of a processor is large, the modularized design is not facilitated, the real-time performance of data acquisition and processing cannot be guaranteed and the like are solved.
The oil smoke emission detector provided by the invention can know the actual condition of oil smoke emission, can reflect the actual emission condition of oil smoke in real time, has high measurement accuracy of a sensor adopted by the detection device, is higher than the measurement accuracy of the existing analog quantity method, directly monitors the oil smoke concentration particulate matters and real-time data of non-methane total hydrocarbon, and provides real and effective oil smoke data for the environmental protection agency; the control main board has high stability and reliability, temperature resistance, cold resistance, high pressure resistance, stable operation, strong anti-interference capability, large storage space and high operation speed, and the CPU is preferably a stc singlechip; this smoke detector adopts initiative inspiratory mode to carry out air collection, compares in traditional passive inhalation difficult jam, can increase life, easily control collection volume, collection speed, and the power supply performance is stable.
The distributed framework of the plurality of chips is convenient for field installation and later maintenance, and the number of the acquisition modules can be dynamically configured according to actual application scenes. All modules are interconnected by adopting the international standard Modbus communication protocol, and the compatibility is good.
The above examples are merely illustrative of preferred embodiments of the present invention and do not limit the scope of the present invention, and all other embodiments obtained by those skilled in the art without making any creative effort based on the embodiments of the present invention are within the scope of protection of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention are within the scope of protection defined in the claims of the present invention without departing from the concept of the present invention.
Claims (7)
1. The utility model provides a lampblack detection system which characterized in that: the system comprises a control main board, an acquisition module, a display panel and a communication module, wherein the acquisition module, the display panel and the communication module are all connected with the control main board; the control main board, the acquisition module, the display panel and the communication module are respectively provided with a core processor chip, the control main board, the acquisition module, the display panel and the communication module are realized in a distributed layout and a modularized manner, the acquisition module is arranged on an acquisition site, and other modules are arranged on an operation site and are transmitted remotely as required; the acquisition modules can be arranged to acquire the smoke concentration of different sites, and the acquisition modules share a set of control main board module;
The control main board comprises a main control chip U11, the main control chip U11 is connected with a plurality of main communicators used for connecting other functional modules, a plurality of electric energy metering IC groups used for measuring current and voltage and a power circuit module, the main communicators are respectively connected with the acquisition module, the communication module and the display panel, and the main control chip U11 is also connected with a fan control module and a purifier control module;
The power supply circuit module comprises a power supply input end, a first input circuit, a second input circuit and a third input circuit are connected in parallel with the power supply input end, the first input circuit is connected with the electric energy metering IC group and supplies power for the main control chip U11, the second input circuit is connected with a 4g communication module, the third input circuit is connected with an air pump and supplies power for the air pump, and the main control chip U11 is provided with a feedback driving circuit which is connected to the third input circuit and controls the third input circuit to supply power to the air pump; the main control chip U11 is connected with a download port CN23, analog signal ports CN15 and CN16 and a plurality of expansion ports, the control main board is also connected with a fan control port CN10 and a purifier remote port CN7, the two ports are connected to the main control chip U11 through a relay and a driving circuit, and the control main board is also provided with a function selection switch, an internal storage, an external storage, a system clock and a 4g communication module which are connected with the main control chip U11;
The main communicator of the main control chip U11 comprises two groups of 485 communication units, each group of 485 communication units is connected to at least two functional interfaces through a protection circuit, at least three groups of electric energy metering ICs are arranged, each group of electric energy metering ICs are connected in parallel and are connected with a power input circuit, the electric energy metering ICs are connected with a current acquisition port through the protection circuit, and the current acquisition port is connected with a transformer;
The main control chip U11 is connected with the 4g communication module through a plurality of pins, the 4g communication module is provided with a plurality of grounding ends and SIM card connection pins, and the 4g communication module is also connected with a second input circuit through a plurality of pins to supply power for the 4g communication module;
One pin of the acquisition chip U6 is connected with the operational amplifier U10, the other pins of the operational amplifier U10 are grounded, one grounding pin is connected to the laser air quality detection module U7, the laser air quality detection module U7 is also connected with one pin of the acquisition chip U6, the grounding pin of the operational amplifier U10 is also connected to the oil smoke sensor U8, one pin of the acquisition chip U6 is directly connected with the temperature and humidity sensor U9, the downloading port CN4 is a four-contact interface, the acquisition chip U6 is connected with three pins of the downloading port CN4, and one pin of the downloading port CN4 is grounded;
The acquisition chip U6 is connected to 4 pins of the 485 communication unit U12 through three pins, two pins of the 485 communication unit U12 are grounded, the other two pins are connected with the protection circuit, and the protection circuit is connected with a four-contact interface used for connecting the main communicator.
2. The fume detection system according to claim 1, wherein: the acquisition module comprises an acquisition chip U6, the acquisition chip U6 is connected with a main communicator of the control main board through being connected with a 485 communication unit U12, the acquisition chip U6 is connected with a laser air quality detection module U7 for detecting air quality, a lampblack sensor U8 for measuring lampblack concentration and a temperature and humidity sensor U9 for measuring air temperature and humidity, the acquisition chip U6 is connected with the main communicator through an operational amplifier U10 and a protection circuit, and the acquisition chip U6 is also connected with a downloading port CN4.
3. The fume detection system according to claim 1, wherein: the display panel comprises a panel chip U3, the panel chip U3 is connected with a main communicator of the control main board through a protection circuit and a 485 communication unit U1, the panel chip U3 is connected with a nixie tube display unit through a driving circuit, and a downloading port CN2 is further arranged on the panel chip U3.
4. The fume detection system according to claim 1, wherein: the communication module comprises a communication chip U20, the communication chip U20 is connected with a SIM card chip U19, the communication chip U20 is connected with an operation lamp and an expansion module through a driver, and the communication chip U20 is connected with a main communicator of the control main board through a protection circuit and a 485 communication unit U1;
The communication module is provided with an interface CN5, and the interface CN5 is connected with a filtering unit and then connected to the communication chip U20 through a transformer, a rectifier bridge and a voltage reduction circuit U17.
5. The fume detection system according to claim 2, wherein: the main control chip U11 is connected with three electric energy metering ICs through three pins, the electric energy metering ICs are provided with grounding pins, one pin is connected with a protection circuit comprising a diode and a resistor, and the protection circuit is connected to the double-contact downloading port;
The multiple pins of the main control chip U11 are connected to two 485 communication units, any 485 communication unit is connected to 4 pin interfaces of the interfaces through a protection circuit and used for connecting a sensor and a display screen, and the other group of 485 communication units is connected to a double pin interface through a protection circuit and used for connecting a communication module with double contacts and other expansion modules.
6. A smoke detection system according to claim 3, wherein: the panel chip U3 is provided with a plurality of grounding pins, two pins are connected with LED display lamps, three pins of the panel chip U3 are connected with the 485 communication unit U1, the 485 communication unit U1 is connected with an interface for connecting the main communicator, three pins of the panel chip U3 are connected to the nixie tube display unit, the nixie tube display unit comprises a plurality of groups of connected display nixie tubes, and two pins of the panel chip U3 are connected with the four-contact downloading port CN2.
7. The smoke detection system of claim 4, wherein: the multiple pins of the communication chip U20 are directly connected with the SIM card chip U19, one end of the SIM card chip U19 is grounded, the multiple pins of the communication chip U20 are connected to one driver, the other driver is connected with the driver in parallel, the driver is connected with a plurality of LED running lamps, and three pins of the communication chip U20 are connected with the filter unit group Hu Jiner and connected with the interface CN5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111236201.8A CN113960258B (en) | 2021-10-22 | 2021-10-22 | Lampblack detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111236201.8A CN113960258B (en) | 2021-10-22 | 2021-10-22 | Lampblack detection system |
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| CN113960258A CN113960258A (en) | 2022-01-21 |
| CN113960258B true CN113960258B (en) | 2024-08-09 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110967286A (en) * | 2019-12-30 | 2020-04-07 | 天津智易时代科技发展有限公司 | Oil smoke probe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201811931U (en) * | 2010-08-30 | 2011-04-27 | 广州博控自动化技术有限公司 | Oil smoke data acquisition device |
| US9518967B2 (en) * | 2013-01-30 | 2016-12-13 | Carl Bright | Hydrocarbon gas detection device |
| CN105675814B (en) * | 2016-01-22 | 2019-02-19 | 湖州伯辉光电科技有限公司 | A kind of oil fume data collector |
| CN208888219U (en) * | 2018-09-20 | 2019-05-21 | 北京泰豪信息科技有限公司 | A kind of online cooking fume apparatus and system |
| CN210427284U (en) * | 2019-07-02 | 2020-04-28 | 北京际亿智能科技有限公司 | Multi-parameter oil smoke on-line monitoring equipment |
| CN211234998U (en) * | 2020-01-14 | 2020-08-11 | 河南泰元电子电器有限公司 | Online monitoring device of oil smoke clarifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967286A (en) * | 2019-12-30 | 2020-04-07 | 天津智易时代科技发展有限公司 | Oil smoke probe |
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