CN115078204A - Online monitoring device for oil smoke concentration and control method thereof - Google Patents
Online monitoring device for oil smoke concentration and control method thereof Download PDFInfo
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- CN115078204A CN115078204A CN202210817406.3A CN202210817406A CN115078204A CN 115078204 A CN115078204 A CN 115078204A CN 202210817406 A CN202210817406 A CN 202210817406A CN 115078204 A CN115078204 A CN 115078204A
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- 239000000779 smoke Substances 0.000 title claims abstract description 241
- 238000012806 monitoring device Methods 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000012544 monitoring process Methods 0.000 claims abstract description 132
- 238000006243 chemical reaction Methods 0.000 claims abstract description 60
- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 238000001514 detection method Methods 0.000 claims description 40
- 239000006233 lamp black Substances 0.000 claims description 23
- 230000005611 electricity Effects 0.000 claims description 19
- 238000004146 energy storage Methods 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 12
- 239000004071 soot Substances 0.000 claims description 12
- 230000005059 dormancy Effects 0.000 claims description 8
- 239000013618 particulate matter Substances 0.000 claims description 7
- 238000000746 purification Methods 0.000 claims description 7
- 230000001960 triggered effect Effects 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 119
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000007958 sleep Effects 0.000 description 8
- 239000000523 sample Substances 0.000 description 7
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 239000003517 fume Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012935 Averaging Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/10—Combinations of wind motors with apparatus storing energy
- F03D9/11—Combinations of wind motors with apparatus storing energy storing electrical energy
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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
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
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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
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0047—Organic compounds
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
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- Pathology (AREA)
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- General Health & Medical Sciences (AREA)
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- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Power Engineering (AREA)
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Abstract
The invention discloses an oil smoke on-line monitoring device and a control method thereof, which are used for monitoring oil smoke at an air outlet of a smoke exhaust fan, and the oil smoke on-line monitoring device comprises: a box body provided with an air inlet and an air outlet; gas discharged from the air outlet of the smoke exhaust fan enters the box body through the air inlet; the gas in the box body is discharged through the gas outlet; the oil smoke monitoring circuit is arranged in the box body and used for monitoring oil smoke data of gas entering the box body; and the wind power conversion mechanism is electrically connected with the oil smoke monitoring circuit and used for converting wind energy at the air outlet of the smoke exhaust fan into electric energy and supplying power to the oil smoke monitoring circuit. By adopting the technical scheme, the structure of the oil smoke online monitoring device can be simplified, the oil smoke online monitoring device is convenient to install, the service life of the oil smoke online monitoring device is prolonged, and the cost of the oil smoke online monitoring device is reduced.
Description
Technical Field
The invention relates to the technical field of oil smoke monitoring, in particular to an oil smoke online monitoring device and a control method thereof.
Background
The oil fume gas discharged by catering usually is purified by a purifying device and then discharged by a smoke exhaust fan. Based on the environmental protection requirement, an oil smoke concentration online monitoring device is generally needed to monitor the oil smoke gas discharged by catering in real time.
At present, an oil smoke concentration online monitoring device is usually installed on the roof of a building, and electricity needs to be taken from a distribution box of an underfloor kitchen during construction, so that a power supply line is long, and the installation cost is increased; meanwhile, the existing online oil smoke concentration monitoring device usually needs to arrange a sampling probe in a negative pressure area between the purification device and the smoke exhaust fan to sample the oil smoke gas purified by the purification device, so that when the online oil smoke concentration monitoring device is installed, a hole needs to be drilled on a smoke exhaust pipeline between the purification device and the smoke exhaust fan to facilitate the installation of the sampling probe; in addition, each structure in the online monitoring device for oil smoke concentration is usually exposed in the environment where the structure is located, so that the online monitoring device for oil smoke concentration is easy to age, damage and the like, and the service life of the online monitoring device for oil smoke concentration is influenced.
In view of the above technical problems, there is a need for an online oil smoke concentration monitoring device which is convenient to install and power-taking and has a long service life.
Disclosure of Invention
The invention provides an oil smoke concentration online monitoring device and a control method thereof, and aims to solve the problems that the oil smoke concentration online monitoring device in the prior art is difficult to get electricity, high in installation cost and short in service life.
According to an aspect of the present invention, there is provided an online oil smoke concentration monitoring device for monitoring oil smoke at an air outlet of a smoke exhaust fan, the online oil smoke concentration monitoring device comprising:
a box body provided with an air inlet and an air outlet; gas discharged from the air outlet of the smoke exhaust fan enters the box body through the air inlet; the gas in the box body is exhausted through the gas outlet;
the oil smoke monitoring circuit is arranged in the box body and used for monitoring oil smoke data of gas entering the box body;
and the wind power conversion mechanism is electrically connected with the oil smoke monitoring circuit and used for converting wind energy at the air outlet of the smoke exhaust fan into electric energy and supplying power to the oil smoke monitoring circuit.
Optionally, the wind power conversion mechanism comprises a micro generator and an impeller;
the impeller is arranged on the side of the box body facing the air outlet of the smoke exhaust fan;
the micro generator is arranged in the box body; the power input shaft of the micro generator is mechanically connected with the impeller, and the electric energy output end of the micro generator is electrically connected with the oil smoke monitoring circuit.
Optionally, the oil smoke concentration on-line monitoring device still includes: an energy storage battery;
the energy storage battery is electrically connected with the wind power conversion mechanism and the oil smoke monitoring circuit respectively; the energy storage battery is used for storing the residual electric quantity of the wind power conversion mechanism and supplying power to the oil smoke monitoring circuit when the output voltage of the wind power conversion mechanism does not meet the electricity utilization requirement of the oil smoke monitoring circuit.
Optionally, the air inlet is a trumpet-shaped air inlet.
Optionally, the oil smoke monitoring circuit includes:
the gas guide pipe is connected with the gas inlet and the gas outlet;
the sensor is arranged in the pipeline of the gas guide pipe;
a microprocessor including a detection signal input; the detection signal input end is electrically connected with the output end of the sensor and used for acquiring the gas detection signal output by the sensor and determining the oil smoke data of the gas entering the box body according to the gas detection signal.
Optionally, the sensor includes particulate matter sensor and VOC sensor that set gradually in the pipeline of gas honeycomb duct.
Optionally, the sensor further includes a temperature and humidity sensor disposed in the pipeline of the gas flow guide pipe.
Optionally, at least a part of the gas flow guide pipe between the gas inlet and the sensor is a pressure relief pipeline.
Optionally, the oil smoke monitoring circuit still includes:
and the air filter element is arranged in a pipeline of the gas guide pipe between the sensor and the air inlet.
Optionally, the oil smoke monitoring circuit further comprises a communication unit;
the microprocessor also comprises an oil smoke signal output end; the oil smoke signal output end is electrically connected with the communication unit; and the microprocessor is in communication connection with the monitoring platform through the communication unit.
Optionally, the oil smoke monitoring circuit further comprises a display;
the microprocessor also comprises a display signal output end; the display signal output end is electrically connected with the control end of the display; the microprocessor is also used for controlling the display to display.
Optionally, the oil smoke concentration on-line monitoring device still includes: a current detection circuit;
the microprocessor also comprises a current signal acquisition end; the current signal acquisition end is electrically connected with the current detection circuit;
the current detection circuit is used for collecting a current signal flowing through the purification device on the air inlet side of the smoke exhaust fan and providing the current signal to the microprocessor.
Optionally, the oil smoke concentration on-line monitoring device still includes: and one end of the mounting bracket is fixedly connected with the box body, and the other end of the mounting bracket is fixedly mounted through a fastener.
According to another aspect of the present invention, a control method for controlling the above-mentioned online soot concentration monitoring device is provided, which includes:
when the oil smoke monitoring circuit is in a power-off state, acquiring the output voltage of the wind power conversion mechanism;
judging whether the wind power conversion mechanism carries out wind power conversion or not according to the output voltage;
if yes, controlling the monitoring circuit to be powered on;
and when the oil smoke monitoring circuit is in a power-on state, the oil smoke monitoring circuit is controlled to upload the oil smoke data to a monitoring platform.
Optionally, the control method of the online oil smoke concentration monitoring device further includes:
if the wind power conversion mechanism does not perform wind power conversion according to the output voltage, controlling the oil fume monitoring circuit to enter a dormant state and acquiring a trigger state of a timer; when the oil smoke monitoring circuit enters a dormant state, the timer carries out dormancy interruption triggering in a set period;
and returning to the step of acquiring the output voltage of the wind power conversion mechanism when the timer is determined to be triggered by the dormancy interruption according to the state of the timer.
According to the technical scheme, the oil smoke monitoring circuit is arranged in the box body, so that the aging and damage of each device structure in the oil smoke monitoring circuit due to the interference of the external environment can be avoided to a certain extent, the service life of the oil smoke monitoring circuit can be prolonged, and the maintenance cost is reduced; meanwhile, the gas inlet and the gas outlet are formed in the box body, so that gas discharged from the air outlet of the smoke exhaust fan can directly enter the box body through the gas inlet, additional air exhaust equipment does not need to be arranged, a probe and the like do not need to be arranged in an exhaust pipeline, the structure and the installation mode of the oil smoke online monitoring device can be simplified, manpower and material resources are saved, and meanwhile, the cost of the oil smoke online monitoring device can be reduced.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present invention, nor do they necessarily limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an oil smoke concentration online monitoring device provided by an embodiment of the invention;
FIG. 2 is a schematic side view of a box according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another online lampblack concentration monitoring device provided by the embodiment of the invention;
fig. 4 is a schematic structural diagram of another online lampblack concentration monitoring device provided by the embodiment of the invention;
fig. 5 is a schematic structural diagram of another online lampblack concentration monitoring device provided by the embodiment of the invention;
fig. 6 is a flowchart of a control method of an online soot concentration monitoring device according to an embodiment of the present invention;
fig. 7 is a flowchart of another control method of an online soot concentration monitoring device according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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.
It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present invention and the above-described drawings, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Various high-temperature, humid and polluted gases are continuously generated by various frying, steaming, boiling, frying, roasting and other devices in a kitchen in the food processing process, are accumulated to a certain degree, the kitchen is not suitable for continuous work, and the polluted gases are generally discharged through a smoke exhaust pipeline by using a smoke exhaust fan. Based on the environmental protection requirement, before exhaust fan discharges polluted gas, need corresponding purifier to purify polluted gas to make polluted gas accord with emission standard. The embodiment of the invention aims to provide an oil smoke concentration online monitoring device which is used for monitoring oil smoke at an air outlet of a smoke exhaust fan so as to determine whether the concentration of the oil smoke in gas at the air outlet of the smoke exhaust fan meets the emission standard.
Fig. 1 is a schematic structural diagram of an oil smoke concentration online monitoring device provided in an embodiment of the present invention, and as shown in fig. 1, the oil smoke concentration online monitoring device includes: a case 10 provided with an air inlet 110 and an air outlet 120; gas discharged from the air outlet of the smoke exhaust fan 100 enters the box body 10 through the air inlet 110; the gas in the case 10 is discharged through the gas outlet 120; the oil smoke monitoring circuit 20 is arranged in the box body 10 and used for monitoring oil smoke data of gas entering the box body 10; and the wind power conversion mechanism 30 is electrically connected with the oil smoke monitoring circuit 20, and is used for converting wind energy at the air outlet of the smoke exhaust fan 100 into electric energy and supplying power to the oil smoke monitoring circuit 20.
Wherein, the air outlet of the smoke exhaust fan 100 is an outlet for exhausting gas in the smoke exhaust fan 100; the air inlet 110 of the box 10 may be disposed opposite to the air outlet of the smoke exhaust fan 100, and on the premise that the air discharged from the air outlet of the smoke exhaust fan 100 can enter the box through the air inlet 110, the arrangement position of the air inlet 110 is not particularly limited in the embodiments of the present invention,
for example, fig. 2 is a schematic side view of a box provided by an embodiment of the present invention, and referring to fig. 1 and fig. 2, the gas inlet 110 may be a trumpet-shaped gas inlet, so as to be able to collect more gas and meet the detection requirement.
It is understood that the shape of the box 10 may be a polyhedron, a sphere, a hemisphere, etc., and this is not particularly limited in the embodiments of the present invention. Taking the case 10 as a rectangular parallelepiped, the case 10 may include a top plate, a bottom plate, and four side plates connecting the top plate and the bottom plate; the air inlet 110 and the air outlet 120 may be disposed on different side plates; alternatively, the gas inlet 110 and the gas outlet 120 are disposed on the top plate or the bottom plate, and may be disposed according to an actual gas exhaust requirement, which is not specifically limited in this embodiment of the present invention.
Specifically, with reference to fig. 1, when the air inlet 110 of the box 10 can be disposed opposite to the air outlet of the smoke exhaust fan 100, the natural airflow power in the positive pressure region can be utilized to enable the air discharged from the air outlet of the smoke exhaust fan 100 to be directly blown into the box 10 through the air inlet 110, so that a gas pumping mechanism such as an air pump or a fan is not required to be disposed in the online oil smoke concentration monitoring device, the structure of the online oil smoke concentration monitoring device can be simplified, and the cost of the online oil smoke concentration monitoring device can be reduced.
Simultaneously, through setting up oil smoke monitoring circuit 20 in box 10, make this oil smoke monitoring circuit 20 can monitor oil smoke data such as oil smoke concentration in the gas that gets into box 10 by air inlet 110, and box 10 can regard as oil smoke monitoring circuit 20's safety cover, can effectively prevent to be exposed to the sun because of oil smoke monitoring circuit 20 direct exposure in the atmosphere, rain and drench etc. and cause the phenomenon production that the device structure is easily damaged of ageing among the oil smoke monitoring circuit 20, thereby can improve the life who detects oil smoke monitoring circuit 20, and then be favorable to improving the life of oil smoke concentration on-line monitoring device, and can reduce in the oil smoke monitoring circuit 20 because of the ageing damaged production of device patrol and examine, the cost of change. The soot monitoring circuit 20 may have any circuit structure capable of monitoring data such as soot concentration in the gas entering the box 10 through the gas inlet 110, which is not specifically limited in the embodiment of the present invention.
In addition, still be provided with wind-powered electricity generation converting mechanism 30 among the oil smoke concentration on-line monitoring device, this wind-powered electricity generation converting mechanism 30 can convert the wind energy that produces because of exhaust fan 100's air outlet combustion gas into the electric energy, for oil smoke monitoring circuit 20 supplies power, thereby make oil smoke on-line monitoring device can realize from the electricity generation, need not outside commercial power and supply power, when saving the electric energy, need not to set up longer power supply line, and can satisfy the all-weather monitoring power consumption demand of oil smoke on-line monitoring device.
By adopting the technical scheme, the oil smoke monitoring circuit is arranged in the box body, and the aging and damage of each device structure in the oil smoke monitoring circuit due to the interference of the external environment can be avoided to a certain extent, so that the service life of the oil smoke monitoring circuit can be prolonged, and the maintenance cost can be reduced; meanwhile, the gas inlet and the gas outlet are formed in the box body, so that gas discharged from the air outlet of the smoke exhaust fan can directly enter the box body through the gas inlet, additional air exhaust equipment does not need to be arranged, a probe and the like do not need to be arranged in an exhaust pipeline, the structure and the installation mode of the oil smoke online monitoring device can be simplified, manpower and material resources are saved, and meanwhile, the cost of the oil smoke online monitoring device can be reduced.
Alternatively, with combined reference to fig. 1 and 2, the wind power conversion mechanism 30 includes a micro-generator 31 and an impeller 32; the impeller 32 is disposed on the side of the casing 10 facing the air outlet of the smoke exhaust fan 100; the micro generator 31 is arranged in the box body 10; the power input shaft of the micro generator 31 is mechanically connected with the impeller 32, and the electric energy output end of the micro generator 31 is electrically connected with the oil smoke monitoring circuit 20.
Wherein, the wind force generated by the flow of the gas blown out from the air outlet of the smoke exhaust fan 100 pushes the impeller 32 to rotate, and the impeller 32 rotates to drive the micro-generator 31 to rotate, thereby converting the kinetic energy into the electric energy and realizing the wind power conversion; the electric energy generated by the micro generator 31 can be directly provided to the oil smoke monitoring circuit 20 to supply power to the oil smoke monitoring circuit 20, so that the oil smoke monitoring circuit 20 can work normally.
It can be understood, there is the wind-force that the gas flow just can produce at smoke exhaust fan 100 air outlet department, impeller 32 just can rotate, micro generator 31 just can produce the electric energy, therefore, can regard micro generator 31 whether to export the electric energy as detecting smoke exhaust fan 100 the detected signal that is in operating condition, thereby need not additionally to set up the detection sensor who is used for detecting smoke exhaust fan 100 whether is in operating condition, and then can further simplify oil smoke concentration on-line monitoring device's structure, reduce oil smoke concentration on-line monitoring device's cost.
Optionally, fig. 3 is a schematic structural diagram of another online oil smoke concentration monitoring device provided in an embodiment of the present invention, and as shown in fig. 3, on the basis of the above embodiment, the online oil smoke concentration monitoring device further includes an energy storage battery 40; the energy storage battery 40 is electrically connected with the wind power conversion mechanism 30 and the oil smoke monitoring circuit 20 respectively; the energy storage battery 40 is used for storing the residual electric quantity of the wind power conversion mechanism 30 and supplying power to the oil smoke monitoring circuit 20 when the output voltage of the wind power conversion mechanism 30 does not meet the electricity utilization requirement of the oil smoke monitoring circuit 20.
Specifically, the energy storage battery 40 is any type of battery capable of being charged and discharged, and may be configured as needed, for example, the energy storage battery 40 may include a lithium battery. The energy storage battery 40 may include a plurality of single cells connected in series or in parallel, and a battery management module may be integrated inside the energy storage battery, and the battery management module controls charging or discharging of each single cell, so that each single cell can be in a charge-discharge balance state, and the energy storage battery 40 has a longer service life.
Wherein, when wind-powered electricity generation mechanism 30 carries out the produced electric energy of wind-powered electricity generation conversion and satisfies oil smoke monitoring circuit 20's power consumption demand, when still having extra residual capacity, this residual capacity can be saved in energy storage battery 40, with the power consumption demand that can't satisfy oil smoke monitoring circuit 20 at wind-powered electricity generation mechanism 30's output voltage, when wind-powered electricity generation mechanism 30 carried out photoelectric conversion's output power is less promptly, can be supplied power for oil smoke monitoring circuit 20 by energy storage battery 40, so that oil smoke monitoring circuit 20 can uninterruptedly work, realize the real-time supervision to exhaust fan 100 air outlet exhaust gas.
In an optional embodiment, fig. 4 is a schematic structural diagram of another online lampblack concentration monitoring device provided in the embodiment of the present invention, as shown in fig. 4, the lampblack monitoring circuit 20 may include: a gas guide pipe 21 connecting the gas inlet 110 and the gas outlet 120; a sensor 22 disposed in a pipe of the gas guide pipe 21; a microprocessor 23 including a detection signal input; the detection signal input end is electrically connected with the output end of the sensor 22, and is used for acquiring the gas detection signal output by the sensor 22 and determining the oil smoke data of the gas entering the box body 10 according to the gas detection signal.
Wherein, the gas guide pipe 21 is arranged between the gas inlet 110 and the gas outlet 120, so that the gas entering from the gas inlet 110 can be transmitted through the gas guide pipe 21 and discharged from the gas outlet 120. Meanwhile, the sensor 22 is arranged in the pipeline of the gas guide pipe 21, so that the sensor 22 detects the gas in the gas guide pipe 21, and the generated gas detection signal is input to the microprocessor 23, so that the microprocessor 23 can determine the oil smoke data of the gas in the gas guide pipe 21 according to the gas detection signal generated by the sensor 22.
In an alternative embodiment, the sensor 22 may include a particulate matter sensor 221 and a VOC sensor 222, which are sequentially disposed in the line of the gas duct 21. The particle sensor 221 can be based on a laser scattering principle, and can include a laser probe, and detects the particle size and the number of particles passing through the laser probe area to convert the mass concentration of the particles, so as to detect the particles in the gas discharged from the air outlet of the smoke exhaust fan 100; the VOC sensor 222 can detect the concentration of organic volatile matters in the pipe of the gas guide pipe 21, so that the concentration of non-methane total hydrocarbons in the gas discharged from the air outlet of the smoke exhaust fan 100 can be monitored, and the detection of harmful gases in the gas discharged from the air outlet of the smoke exhaust fan 100 can be realized.
It should be noted that, during actual detection, the microprocessor 23 may obtain a plurality of gas detection signals output by the particulate matter sensor 221 at preset time intervals, so as to determine mass concentrations of a plurality of particulate matters according to the plurality of gas detection signals, and determine the mass concentration of the particulate matters in the time period after averaging the mass concentrations of the plurality of particulate matters, so as to improve the detection accuracy of the mass concentration of the particulate matters in the gas duct; accordingly, the microprocessor 23 can obtain a plurality of gas detection signals output by the VOC sensor 222 at preset time intervals to determine a plurality of concentrations of non-methane total hydrocarbons according to the plurality of gas detection signals, and can determine the concentration of the non-methane total hydrocarbons in the time period after averaging the plurality of concentrations of the non-methane total hydrocarbons, so as to improve the detection accuracy of the concentration of the non-methane total hydrocarbons in the gas guide pipe.
In addition, on the basis of the above embodiment, the sensor 22 may further include a temperature and humidity sensor 223 disposed in the pipeline of the gas guide pipe 21 to detect the temperature and humidity of the gas in the gas guide pipe 21, so as to determine the operating state of the smoke exhaust fan 100. When the temperature and humidity of the gas in the gas guide pipe 21 are detected by the temperature and humidity sensor 223, the microprocessor 23 can also acquire a plurality of gas detection signals output by the temperature and humidity sensor 223 at preset intervals, determine a plurality of temperature values and a plurality of humidity values according to the plurality of gas detection signals, and determine the temperature and the humidity of the gas in the time period after averaging the plurality of temperature values and the plurality of humidity values respectively, so as to improve the accuracy of detecting the temperature and the humidity of the gas in the gas guide pipe 21.
It is to be understood that when the sensor 22 includes the particulate matter sensor 221, the VOC sensor 222 and the temperature/humidity sensor 223 at the same time, the microprocessor 23 should include the detection signal inputs in1, in2 and in3 electrically connected to the particulate matter sensor 221, the VOC sensor 222 and the temperature/humidity sensor 223, respectively, so that the microprocessor 23 can acquire the gas detection signals output by the particulate matter sensor 221, the VOC sensor 222 and the temperature/humidity sensor 223, respectively.
Optionally, with continued reference to fig. 4, based on the above embodiment, at least a portion of the gas guiding tube 21 between the gas inlet 110 and the sensor 22 is a pressure relief pipe 211. Can built-in relief valve in this pressure release pipeline 211, through the gas pressure of this pressure release pipeline 211 of pressure release valve adjustment to ensure that the pressure of the gas that reaches sensor 22 department is in setting for the pressure range, thereby when improving the accuracy of gas detection in the gas backflow pipe 21, can prevent to damage sensor 22's detection head etc. because of the gaseous pressure is too high in the gas honeycomb duct 21, improve sensor 22's life. Wherein, the pressure relief pipe 211 includes, but is not limited to, a pressure relief tee pipe.
Optionally, with continued reference to fig. 4, on the basis of the above-mentioned embodiment, the soot monitoring circuit 20 further includes an air filter 24, and the air filter 24 may be disposed in the pipeline of the gas guiding pipe 21 between the sensor 22 and the gas inlet 110.
Wherein, set up air filter 24 in the pipeline of the gas honeycomb duct 21 between sensor 22 and air inlet 110 and can be with the impurity filtering that has great volume carried in the gas that enters into gas honeycomb duct 21 by air inlet 110, prevent that this great volume impurity from influencing the accuracy that sensor 22 detected the gaseous oil smoke data in the gas honeycomb duct 21.
Optionally, with continued reference to fig. 4, the soot monitoring circuit 20 may further include a communication unit 25; at this time, the microprocessor 23 further includes a smoke signal output end out1, and the smoke signal output end out1 is electrically connected to the communication unit 25; at this time, the microprocessor 23 may be in communication connection with the monitoring platform 200 through the communication unit 25, so that the microprocessor 23 can report the oil smoke data to the monitoring platform 200, thereby remotely monitoring the oil smoke concentration of the exhaust gas at the air outlet of the exhaust fan 100.
Optionally, with continued reference to fig. 4, on the basis of the above embodiment, the lampblack monitoring circuit 20 further includes a display 26; in this case, the microprocessor 23 further includes a display signal output terminal out 2; the display signal output end out2 is electrically connected to the control end of the display 26; the microprocessor 23 is also used for controlling the display 26 to display, so that the oil smoke data and the like can be visually displayed in the display 26, and the oil smoke data and the like can be conveniently watched by maintenance personnel. The display 26 may include, but is not limited to, an OLED display screen, among others.
Optionally, with continuing reference to fig. 4, on the basis of the foregoing embodiment, the online oil smoke concentration monitoring device further includes: a current detection circuit 50; at this time, the microprocessor 23 may further include a current signal collecting terminal in 4; the current signal acquisition terminal in4 is electrically connected with the current detection circuit 50; the current detection circuit 50 is configured to collect a current signal flowing through the purification apparatus 300 on the air inlet side of the smoke exhaust fan 100, and provide the current signal to the microprocessor 23, so that the microprocessor 23 determines the operating state of the purification apparatus 300 according to the current signal collected by the current detection circuit 50. The current monitoring circuit 50 may include a current transformer, through which a current signal flowing through the purifying device 300 can be sensed, so as to detect the operating state of the purifying device 300.
Optionally, fig. 5 is a schematic structural diagram of another online soot concentration monitoring device provided in an embodiment of the present invention, and as shown in fig. 5, on the basis of the above embodiment, the online soot concentration monitoring device further includes: and one end of the mounting bracket 60 is fixedly connected with the box body 10, and the other end of the mounting bracket 60 is fixedly mounted through a fastener.
Wherein, one end of the mounting bracket 60 and the box body 10 can be fixed by welding, or the mounting bracket 60 and the box body 10 can be integrally formed, so that the mounting bracket 60 and the box body 10 are seamlessly fixed; the other end of the mounting bracket 60 may be provided with a mounting hole, and the fastener may penetrate through the mounting hole to fix the mounting bracket to a roof or other positions where the on-line oil smoke concentration monitoring device is to be installed.
To sum up, the oil smoke concentration on-line monitoring device of this embodiment has simple structure, long service life, simple to operate, low-power consumption and low-cost characteristics, can satisfy oil smoke concentration real-time supervision's demand.
Based on the same inventive concept, the embodiment of the invention also provides a control method of the oil smoke concentration online monitoring device, which is used for controlling the oil smoke concentration online monitoring device provided by any embodiment of the invention. Fig. 6 is a flowchart of a control method of an online soot concentration monitoring device according to an embodiment of the present invention, and as shown in fig. 6, the control method includes:
and S110, acquiring the output voltage of the wind power conversion mechanism when the oil smoke monitoring circuit is in a power-off state.
Specifically, before monitoring the oil smoke concentration in the gas discharged from the air outlet of the smoke exhaust fan, a multi-oil smoke concentration online monitoring device is needed to be powered on for initialization, at the moment, the oil smoke monitoring circuit is in a power-off state, namely, no power supply is used for supplying power to the oil smoke monitoring circuit, and the oil smoke monitoring circuit is in a non-working state. At the moment, the output voltage of the wind power conversion mechanism can be acquired to determine whether oil smoke monitoring is needed.
S120, judging whether the wind power conversion mechanism carries out wind power conversion or not according to the output voltage; if yes, go to S130.
And S130, controlling the monitoring circuit to be electrified.
And S140, when the oil smoke monitoring circuit is in the power-on state, controlling the oil smoke monitoring circuit to upload oil smoke data to the monitoring platform.
Specifically, when the online oil smoke concentration monitoring device is powered on and initialized, if no gas is discharged from the air outlet of the smoke exhaust fan, the wind power conversion mechanism cannot receive wind energy generated due to the gas discharged from the air outlet of the smoke exhaust fan, so that the wind power conversion mechanism cannot perform wind power conversion, and the output voltage of the output end of the wind power conversion mechanism is smaller or 0V, so that the wind power conversion mechanism can be determined to be in a non-working state according to the output voltage of the output end of the wind power conversion mechanism, namely, the smoke exhaust fan is in a non-working state, no gas is discharged from the air outlet of the smoke exhaust fan, and the oil smoke data of the gas does not need to be detected; and when smoke exhaust fan air outlet has the gas outgoing, wind-powered electricity generation shifter will receive the wind energy that produces because of smoke exhaust fan air outlet exhaust for wind-powered electricity generation shifter carries out the wind-powered electricity generation conversion, and the output voltage of its output is great, can determine wind-powered electricity generation shifter in operating condition according to the output voltage of wind-powered electricity generation shifter output from this, and smoke exhaust fan is in operating condition promptly, and smoke exhaust fan air outlet has gaseous emission, needs to detect the oil smoke data of gas. Therefore, when the wind power conversion mechanism is determined to perform wind power conversion, the oil smoke monitoring circuit can be controlled to be powered on, and the electric energy converted by the wind power conversion mechanism is provided to the oil smoke monitoring circuit to supply power to the oil smoke monitoring circuit, so that the oil smoke monitoring circuit can normally work; when the oil smoke monitoring circuit is in a power-on state, the oil smoke monitoring circuit can monitor oil smoke data of gas entering the box body and upload the monitored oil smoke data to the monitoring platform, so that remote monitoring of related personnel is facilitated.
In this embodiment, the working state of the wind power conversion mechanism is determined according to the output voltage of the wind power conversion mechanism to determine the working state of the smoke exhaust fan, and when the smoke exhaust fan is in the working state, it is determined that the oil smoke monitoring needs to be performed on the gas exhausted from the air outlet of the smoke exhaust fan, the oil smoke monitoring circuit is controlled to be powered on, and the oil smoke data monitored by the oil smoke monitoring circuit is uploaded to the monitoring platform, so that the oil smoke concentration online monitoring device provided by the embodiment of the invention can realize low power consumption while performing remote monitoring on the oil smoke data.
In an optional embodiment, if it is determined that the wind power conversion mechanism does not perform wind power conversion according to the output voltage, the oil smoke monitoring circuit is controlled to enter a sleep state, a trigger state of the timer is acquired, and when the trigger state of the timer is sleep interruption trigger, the step of acquiring the output voltage of the wind power conversion mechanism is executed in a return mode. Fig. 7 is a flowchart of another control method for an online soot concentration monitoring device according to an embodiment of the present invention, and as shown in fig. 7, the control method includes:
and S210, acquiring the output voltage of the wind power conversion mechanism when the oil smoke monitoring circuit is in a power-off state.
S220, judging whether the wind power conversion mechanism carries out wind power conversion or not according to the output voltage; if yes, executing S230 and S240 in sequence; if not, S250 and S260 are sequentially executed.
And S230, controlling the monitoring circuit to be powered on.
And S240, when the oil smoke monitoring circuit is in a power-on state, controlling the oil smoke monitoring circuit to upload oil smoke data to the monitoring platform.
And S250, controlling the oil smoke monitoring circuit to enter a dormant state, and acquiring a trigger state of the timer.
S260, judging whether the timer carries out dormancy interruption triggering or not according to the triggering state of the timer; if yes, returning to execute S210; if not, the process returns to the step S250.
Specifically, when the oil smoke monitoring circuit enters a sleep state, the timer performs sleep interrupt triggering in a set period, namely the timer performs sleep interrupt triggering once every certain time interval, so that the oil smoke monitoring circuit is converted into an awakening state from the sleep state, the output voltage of the wind power conversion mechanism is obtained at the same time, and if the timer performs sleep interrupt triggering, the output voltage of the wind power conversion mechanism does not reach a certain voltage value, the oil smoke monitoring circuit is controlled to perform the sleep state again; on the contrary, when the output voltage of wind-powered electricity generation converting mechanism reaches certain magnitude of voltage, can control oil smoke monitoring circuit and switch into the power-on state, at this moment, the timer no longer interrupts and triggers, when the output voltage of wind-powered electricity generation converting mechanism does not reach a definite value, the timer can carry out dormancy interrupt with the settlement cycle again and trigger to prevent to interrupt the monitoring process that triggers influence oil smoke monitoring circuit to oil smoke data because of the dormancy of timer. When the output voltage of the wind power conversion mechanism does not reach a certain value, the electric energy converted by the wind power conversion mechanism cannot meet the power consumption requirement of the oil smoke monitoring circuit, and the electric energy stored in the energy storage battery can be used for supplying power for the oil smoke monitoring circuit, so that the oil smoke monitoring circuit can meet the basic awakening function.
In the embodiment, when the wind power conversion mechanism does not perform wind power conversion, the oil fume monitoring circuit is controlled to enter the dormant state, so that the power consumption of the oil fume monitoring circuit is reduced; meanwhile, when the oil smoke monitoring circuit enters a dormant state, the timer can set a period to perform dormancy interruption and awakening so as to periodically acquire the output voltage of the wind power conversion mechanism, so that when the oil smoke concentration of gas exhausted from the air outlet of the smoke exhaust fan needs to be monitored, the oil smoke monitoring circuit can be timely controlled to monitor the oil smoke concentration, and the real-time performance of monitoring the oil smoke concentration can be ensured while low power consumption is realized.
It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present invention may be executed in parallel, sequentially, or in different orders, and are not limited herein as long as the desired results of the technical solution of the present invention can be achieved.
The above-described embodiments should not be construed as limiting the scope of the invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (15)
1. The utility model provides an oil smoke concentration on-line monitoring device which characterized in that for monitor the oil smoke to exhaust fan air outlet department, oil smoke concentration on-line monitoring device includes:
a box body provided with an air inlet and an air outlet; gas discharged from the air outlet of the smoke exhaust fan enters the box body through the air inlet; the gas in the box body is exhausted through the gas outlet;
the oil smoke monitoring circuit is arranged in the box body and used for monitoring oil smoke data of gas entering the box body;
and the wind power conversion mechanism is electrically connected with the oil smoke monitoring circuit and used for converting wind energy at the air outlet of the smoke exhaust fan into electric energy and supplying power to the oil smoke monitoring circuit.
2. The lampblack concentration online monitoring device according to claim 1, wherein the wind power conversion mechanism comprises a micro generator and an impeller;
the impeller is arranged on the side of the box body facing the air outlet of the smoke exhaust fan;
the micro generator is arranged in the box body; the power input shaft of the micro generator is mechanically connected with the impeller, and the electric energy output end of the micro generator is electrically connected with the oil smoke monitoring circuit.
3. The lampblack concentration online monitoring device according to claim 1, further comprising: an energy storage battery;
the energy storage battery is electrically connected with the wind power conversion mechanism and the oil smoke monitoring circuit respectively; the energy storage battery is used for storing the residual electric quantity of the wind power conversion mechanism and supplying power to the oil smoke monitoring circuit when the output voltage of the wind power conversion mechanism does not meet the electricity utilization requirement of the oil smoke monitoring circuit.
4. The online lampblack concentration monitoring device according to claim 1, wherein the air inlet is a horn-shaped air inlet.
5. The lampblack concentration online monitoring device according to claim 1, wherein the lampblack monitoring circuit comprises:
the gas guide pipe is connected with the gas inlet and the gas outlet;
the sensor is arranged in the pipeline of the gas guide pipe;
a microprocessor including a detection signal input; the detection signal input end is electrically connected with the output end of the sensor and used for acquiring the gas detection signal output by the sensor and determining the oil smoke data of the gas entering the box body according to the gas detection signal.
6. The online lampblack concentration monitoring device according to claim 5, wherein the sensor comprises a particulate matter sensor and a VOC sensor which are sequentially arranged in a pipeline of the gas flow guide pipe.
7. The online lampblack concentration monitoring device according to claim 6, wherein the sensor further comprises a temperature and humidity sensor arranged in a pipeline of the gas flow guide pipe.
8. The online lampblack concentration monitoring device according to claim 5, wherein at least a part of a gas flow guide pipe between the gas inlet and the sensor is a pressure relief pipeline.
9. The lampblack concentration online monitoring device according to claim 5, wherein the lampblack monitoring circuit further comprises:
and the air filter element is arranged in a pipeline of the gas guide pipe between the sensor and the air inlet.
10. The lampblack concentration online monitoring device according to claim 5, wherein the lampblack monitoring circuit further comprises a communication unit;
the microprocessor also comprises an oil smoke signal output end; the oil smoke signal output end is electrically connected with the communication unit; and the microprocessor is in communication connection with the monitoring platform through the communication unit.
11. The lampblack concentration online monitoring device according to claim 5, wherein the lampblack monitoring circuit further comprises a display;
the microprocessor also comprises a display signal output end; the display signal output end is electrically connected with the control end of the display; the microprocessor is also used for controlling the display to display.
12. The lampblack concentration online monitoring device according to claim 5, further comprising: a current detection circuit;
the microprocessor also comprises a current signal acquisition end; the current signal acquisition end is electrically connected with the current detection circuit;
the current detection circuit is used for collecting a current signal flowing through the purification device on the air inlet side of the smoke exhaust fan and providing the current signal to the microprocessor.
13. The lampblack concentration online monitoring device according to claim 1, further comprising:
and one end of the mounting bracket is fixedly connected with the box body, and the other end of the mounting bracket is fixedly mounted through a fastener.
14. A control method for controlling the soot concentration online monitoring device according to any one of claims 1 to 13, comprising:
when the oil smoke monitoring circuit is in a power-off state, acquiring the output voltage of the wind power conversion mechanism;
judging whether the wind power conversion mechanism carries out wind power conversion or not according to the output voltage;
if yes, controlling the monitoring circuit to be powered on;
and when the oil smoke monitoring circuit is in a power-on state, the oil smoke monitoring circuit is controlled to upload the oil smoke data to a monitoring platform.
15. The control method of the online lampblack concentration monitoring device according to claim 14, characterized by further comprising the following steps:
if the wind power conversion mechanism is determined not to perform wind power conversion according to the output voltage, controlling the oil smoke monitoring circuit to enter a dormant state and acquiring a trigger state of a timer; when the oil smoke monitoring circuit enters a dormant state, the timer carries out dormancy interruption triggering in a set period;
and returning to the step of acquiring the output voltage of the wind power conversion mechanism when the timer is determined to be triggered by the dormancy interruption according to the state of the timer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210817406.3A CN115078204A (en) | 2022-07-12 | 2022-07-12 | Online monitoring device for oil smoke concentration and control method thereof |
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| CN202210817406.3A CN115078204A (en) | 2022-07-12 | 2022-07-12 | Online monitoring device for oil smoke concentration and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116008145A (en) * | 2022-12-27 | 2023-04-25 | 江苏师范大学科文学院 | Catering industry oil smoke emission monitored control system based on thing networking |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116008145A (en) * | 2022-12-27 | 2023-04-25 | 江苏师范大学科文学院 | Catering industry oil smoke emission monitored control system based on thing networking |
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