CN102243270A - Detection method of oil fume purifier working state and apparatus thereof - Google Patents
Detection method of oil fume purifier working state and apparatus thereof Download PDFInfo
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- CN102243270A CN102243270A CN2010101671819A CN201010167181A CN102243270A CN 102243270 A CN102243270 A CN 102243270A CN 2010101671819 A CN2010101671819 A CN 2010101671819A CN 201010167181 A CN201010167181 A CN 201010167181A CN 102243270 A CN102243270 A CN 102243270A
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Abstract
The invention relates to a detection method of an oil fume purifier working state and an apparatus thereof. A voltage-mutual-inductance module and a current-mutual-inductance module are connected in series with a phase line of the oil fume purifier. Communication terminals of the voltage-mutual-inductance module and the current-mutual-inductance module are connected with an electric energy measurement module. Simultaneously, the electric energy measurement module is connected into a MCU module through a data bus. Through cooperation between the voltage-mutual-inductance module and the current-mutual-inductance module, current and voltage signals are adopted to determine the working state of the oil fume purifier. Therefore, troubles of cleaning and maintaining an oil fume sensor can be omitted and a plurality of maintenance costs can be saved. Through extracting oil fume purifier operation power, actual operation conditions and the working state of the oil fume purifier in 24 hours a day can be grasped so that optimal monitoring can be performed.
Description
Technical field
The present invention relates to a kind of detection method and device thereof of cooking fume remover, relate in particular to a kind of detection method and device thereof of cooking fume remover duty.
Background technology
On September 1st, 2000, country implements in the revised Air Pollution Prevention Law, the clause and clear and definite blowdown owner's the legal liabilities of " operator of city diet service trade must take measures, and the control oil smoke pollutes near resident living environment " have been increased newly.In order to solve the fume pollution problem conscientiously, governments at all levels all pay much attention to the preventing and controlling of diet service trade fume pollution, and fume purifier of fume has all been installed by a lot of food and beverage enterprises.But the management work to fume purifier of fume but is difficult to carry out, to the automatic detection of fume purifier of fume duty with judge the greatest difficulty that then becomes the fume purifier of fume information system management.
The duty of fume purifier of fume generally is divided into and closes, operate as normal, need to clean three states.Because fume purifier of fume is installed in the kitchen that the heavy oil cigarette has naked light again, is again electronic equipment, the accumulation that oil smoke can acquire a certain degree in purification plant inside is in case untimely cleaning can cause and serious consequence.Because one side fume purifier of fume type difference, therefore the business hours length difference in each tame restaurant can't clean fume purifier of fume by unified cycle of law-making stipulation on the other hand.
Traditional detection method generally has oil smoke detection method and current induction method.The oil smoke detection method is by the airborne oil smoke concentration of oil smoke sensor, thereby judges the treatment effeciency of fume purifier of fume.This kind method needs maintenance works such as the oil smoke sensor cleans have been increased the weight of operation cost inevitably.Traditional induction by current rule can only solve to close with non-closes two states, and can't tell operate as normal and need to clean two states.
Summary of the invention
Purpose of the present invention is exactly in order to solve the above-mentioned problems in the prior art, and a kind of detection method and device thereof of cooking fume remover duty is provided.
Purpose of the present invention is achieved through the following technical solutions:
The detection method of cooking fume remover duty, it may further comprise the steps: step 1., the voltage transformer (VT) module is gathered voltage sampling signal by mutual inductance effect by the relaying power lead from the power lead of cooking fume remover, and voltage sampling signal is sent into the electric energy measurement module; Current transformer module is gathered current sampling signal by mutual inductance effect by the relaying power lead from the power lead of cooking fume remover, and current sampling signal is sent into the electric energy measurement module; Step 2., the electric energy measurement module is sent into data the MCU module afterwards by the voltage and current sampled signal being carried out AD conversion; 3. step after the MCU module receives data, is handled sampled signal, obtains the average power of cooking fume remover, judges the duty of cooking fume remover; Step 4., if the average power of step in 3. near 0, then cooking fume remover is a closed condition; If average power does not reach the alarm threshold values, then MCU is to output signal interface output average power numerical value; If reach average power alarm threshold values, then MCU is to output signal interface output average power numerical value and alerting signal.
The detection method of above-mentioned cooking fume remover duty, wherein: described alarm threshold values is, if the initial average power minimum value of fume purifier of fume is P0min, maximal value is P0max, the full average power minimum value after 25 hours of fume purifier of fume continuous firing is P1min, maximal value is P1max, and then the alarm threshold values should be set between P0min+ (P1min-P0min) * 20 and P0max+ (P1max-P0max) * 20.Be that reference value is set the alarm threshold values promptly with 500 hours power of the continuous operate as normal of fume purifier of fume.Because its corresponding theory threshold values after each the cleaning can increase progressively by trace, therefore the numerical value one of the threshold value setting of alarm for the first time fixes within the safe range, and once setting the back does not just need to have changed again.
Further, the detection method of above-mentioned cooking fume remover duty, wherein: as detected cooking fume remover is three-phase supply, then voltage transformer (VT) is a threephase potential transformer, otherwise is the two-phase voltage transformer (VT); As detected cooking fume remover is three-phase supply, and then current transformer is a threephase current transformer, otherwise is the biphase current mutual inductor.
Further, the detection method of above-mentioned cooking fume remover duty, wherein: described electric energy measurement module comprises electric energy measurement integrated circuit (IC) chip and peripheral circuit thereof, described electric energy measurement integrated circuit (IC) chip adapts to dwelling house with single-phase ammeter or industrial three-phase kilowatt-hour meter equipment, can accurately measure immediate current and voltage, can calculate instantaneous power, average power, integrated at least two Delta-Sigma A/D converters and a data output interface.
Further, the detection method of above-mentioned cooking fume remover duty, wherein: the 3. described MCU module of step has following minimum instruction cycle length of 10 μ S; Described MCU module receives also at least 1000 current-voltage sampling signal datas of storage, and the current-voltage sampling signal data added up respectively and is averaged, and average current and average voltage are multiplied each other draws the average power of 1 sampling period at last.
The cooking fume remover working state detection device, wherein: on the phase line of cooking fume remover, be in series with mutual induction of voltage module and electric current mutual inductance module; The communication ends of described mutual induction of voltage module and electric current mutual inductance module is connected into the electric energy measurement module; Described electric energy measurement module is connected into the MCU module by data bus.
Above-mentioned cooking fume remover working state detection device, wherein: described MCU module is provided with the RS232 data-interface.
The advantage of technical solution of the present invention is mainly reflected in: only need to adopt electric current and voltage signal can judge the duty of cooking fume remover, therefore saved the trouble of clean and maintenance oil smoke sensor, can save a large amount of maintenance costs.And, under the situation that circuit allows, even can be installed in place away from the kitchen, thus the disaster hidden-trouble of having avoided oil smoke that the erosion and the electronic product of testing circuit used in the kitchen.And, by the extraction of cooking fume remover operate power, can grasp the practical operation situation and the duty of 24 hours cooking fume removers of whole day, can realize cleaning automatically reporting to the police by cooperating back-end circuit or back-end system.
Description of drawings
Purpose of the present invention, advantage and characteristics will illustrate by the non-limitative illustration of following preferred embodiment and explain.These embodiment only are the prominent examples of using technical solution of the present invention, and all technical schemes of taking to be equal to replacement or equivalent transformation and forming all drop within the scope of protection of present invention.In the middle of these accompanying drawings,
Fig. 1 is the structure intention of cooking fume remover with working state detection device;
Fig. 2 is the circuit structure synoptic diagram of electric current mutual inductance module and electric current mutual inductance module.
The implication of each Reference numeral is as follows among the figure:
1 cooking fume remover, 2 phase lines
3 mutual induction of voltage modules, 4 electric current mutual inductance modules
5 electric energy measurement modules, 6 data buss
7MCU module 8RS232 data-interface
Embodiment
The detection method of cooking fume remover duty, its special feature is may further comprise the steps: at first, the voltage transformer (VT) module is gathered voltage sampling signal by mutual inductance effect by the relaying power lead from the power lead of cooking fume remover, and voltage sampling signal is sent into the electric energy measurement module.Same, by the relaying power lead, from the power lead of cooking fume remover, gather current sampling signal by current transformer module, and current sampling signal is sent into the electric energy measurement module by mutual inductance effect.Afterwards, the electric energy measurement module is sent into data the MCU module afterwards by the voltage and current sampled signal being carried out the AD conversion.
Then, after the MCU module receives data, sampled signal is handled, obtained the average power of cooking fume remover, judge the duty of cooking fume remover.Specifically, average power is near 0, and then cooking fume remover is a closed condition.If average power does not reach the alarm threshold values, then MCU is to output signal interface output average power numerical value.Relative, if reach average power alarm threshold values, then MCU is to output signal interface output average power numerical value and alerting signal.
Specifically, if the initial average power minimum value of fume purifier of fume is P0min, maximal value is P0max, the full average power minimum value after 25 hours of fume purifier of fume continuous firing is P1min, maximal value is P1max, then alarm threshold values P should set between P0min+ (P1min-P0min) * 20 and P0max+ (P1max-P0max) * 20, is that reference value is set the alarm threshold values with 500 hours power of the continuous operate as normal of fume purifier of fume promptly.Because its corresponding theory threshold values after each the cleaning can increase progressively by trace, therefore the numerical value one of the threshold value setting of alarm for the first time fixes within the safe range, and once setting the back does not just need to have changed again.
With regard to the present invention's one preferred implementation, the MCU module has following minimum instruction cycle length of 10 μ S.Simultaneously, the MCU module can receive and store at least 1000 current-voltage sampling signal datas, and the current-voltage sampling signal data added up respectively and is averaged, and average current and average voltage are multiplied each other draws the average power of 1 sampling period at last.And the sampling time precision is no more than 100 instruction cycletimes.The sampling period should be able to remain on about 1 second.
Further combined with actual enforcement of the present invention, be three-phase supply as detected cooking fume remover, then voltage transformer (VT) is a threephase potential transformer, otherwise is the two-phase voltage transformer (VT).Same, be three-phase supply as detected cooking fume remover, then current transformer is a threephase current transformer, otherwise is the biphase current mutual inductor.
Simultaneously, for the ease of the correctness of measurement data, the electric energy measurement module comprises electric energy measurement integrated circuit (IC) chip and peripheral circuit thereof.Specifically, the electric energy measurement integrated circuit (IC) chip adapts to dwelling house with single-phase ammeter or industrial three-phase kilowatt-hour meter equipment, can accurately measure immediate current and voltage, can calculate instantaneous power, average power, integrated at least two Delta-Sigma A/D converters and a data output interface.Thus, can possess high speed electric energy computing function.
Consider the preferable realization of this detection method, as shown in Figure 1 and Figure 2, provide a kind of cooking fume remover working state detection device, its unusual part is: be in series with mutual induction of voltage module 3 and electric current mutual inductance module 4 on the phase line 2 of cooking fume remover 1.Simultaneously, mutual induction of voltage module 3 is connected into electric energy measurement module 5 with the communication ends of electric current mutual inductance module 4.And electric energy measurement module 5 is connected into MCU module 7 by data bus 6.Moreover, consider the communication facility of this pick-up unit on MCU module 7, to be provided with RS232 data-interface 8.Moreover general desirable 8 single-chip microcomputers of 51 types that satisfy condition are as MCU module 7.
Further combined with Fig. 2, it is TA1420-01 that current sensor is chosen model again, the vertical punching of this sensor, and the direct welded and installed of printed-wiring board (PWB), environment for use temperature are-55 ℃～+ 85 ℃, operating frequency range is 20Hz～20KHz.Simultaneously, it is TV1013-1 that voltage sensor is chosen model, the vertical punching of this sensor, the direct welded and installed of printed-wiring board (PWB), the environment for use temperature is-55 ℃～+ 85 ℃, and operating frequency range is 20Hz～20KHz, by the relaying power lead, this cooking fume remover can form two simple power input interfaces, V1 and V2 with working state detection device.Only need block the phase line of cooking fume remover, two breakpoints be joined to V1 and V2 gets final product.Install simply, installation cost is little, realizes in the restaurant that is doing business easily.Because a large amount of metal shells generally in when finishing, all can be used in the kitchen, restaurant, as flue etc., circuit is all hidden probably under metal shell, reequip suitable trouble, and the repacking mode of native system requires simply, even can be away from the kitchen, the other wiring of panel box gets final product outside the kitchen.
Simultaneously, present embodiment is applicable to the cooking fume remover of two-phase, is suitable for the three-phase cooking fume remover as need, then only need change electric current and voltage sensor into suitable three-phase sensor and get final product.When inserting the three-phase cooking fume remover, words with good conditionsi should all be loaded onto sensing module in three phase lines of cooking fume remover, to avoid producing single-phase choking effect, influence three-phase balancing load.
It is CS5461 that electric energy measure chip is chosen model, on this chip integrated two Delta-Sigma simulation to numeral (A/D) converter, high speed electric energy computing function, and serial line interface.Can carry out AC and DC calibration, and the phase compensation that helps the accurate Calculation power line frequency.This chip aims at dwelling house with single-phase ammeter or industrial three-phase kilowatt-hour meter equipment and design, and can accurately measure immediate current and voltage, and can calculate instantaneous power, average power.Like this, electric energy measure chip is sampled by the data that electric current and voltage sensor module are sent here and is calculated, and exports average power at last and gives the MCU module.
By above-mentioned character express also in conjunction with the accompanying drawings as can be seen, after adopting the present invention, only need to adopt electric current and voltage signal can judge the duty of cooking fume remover, therefore saved the trouble of clean and maintenance oil smoke sensor, can save a large amount of maintenance costs.And, under the situation that circuit allows, even can be installed in place away from the kitchen, thus the disaster hidden-trouble of having avoided oil smoke that the erosion and the electronic product of testing circuit used in the kitchen.And, extraction by the cooking fume remover operate power, can grasp the practical operation situation and the duty of 24 hours cooking fume removers of whole day, can realize cleaning automatically reporting to the police by cooperating back-end circuit or back-end system, in a single day alerting signal is sent, represent that promptly this cooking fume remover needs to clean, carry out the supervision an of the best.
Claims (7)
1. the detection method of cooking fume remover duty is characterized in that may further comprise the steps:
Step 1., the voltage transformer (VT) module is gathered voltage sampling signal by mutual inductance effect by the relaying power lead from the power lead of cooking fume remover, and voltage sampling signal is sent into the electric energy measurement module; Current transformer module is gathered current sampling signal by mutual inductance effect by the relaying power lead from the power lead of cooking fume remover, and current sampling signal is sent into the electric energy measurement module;
Step 2., the electric energy measurement module is sent into data the MCU module afterwards by the voltage and current sampled signal being carried out AD conversion;
3. step after the MCU module receives data, is handled sampled signal, obtains the average power of cooking fume remover, judges the duty of cooking fume remover;
Step 4., if the average power of step in 3. near 0, then cooking fume remover is a closed condition; If average power does not reach the alarm threshold values, then MCU is to output signal interface output average power numerical value; If reach average power alarm threshold values, then MCU is to output signal interface output average power numerical value and alerting signal.
2. the detection method of cooking fume remover duty according to claim 1, it is characterized in that: described alarm threshold values is, if the initial average power minimum value of fume purifier of fume is P0min, maximal value is P0max, the full average power minimum value after 25 hours of fume purifier of fume continuous firing is P1min, maximal value is P1max, and then the alarm threshold values should be set between P0min+ (P1min-P0min) * 20 and P0max+ (P1max-P0max) * 20.
3. the detection method of cooking fume remover duty according to claim 1 is characterized in that: as detected cooking fume remover is three-phase supply, and then voltage transformer (VT) is a threephase potential transformer, otherwise is the two-phase voltage transformer (VT); As detected cooking fume remover is three-phase supply, and then current transformer is a threephase current transformer, otherwise is the biphase current mutual inductor.
4. the detection method of cooking fume remover duty according to claim 1, it is characterized in that: described electric energy measurement module comprises electric energy measurement integrated circuit (IC) chip and peripheral circuit thereof, described electric energy measurement integrated circuit (IC) chip adapts to dwelling house with single-phase ammeter or industrial three-phase kilowatt-hour meter equipment, can accurately measure immediate current and voltage, can calculate instantaneous power, average power, integrated at least two Delta-Sigma A/D converters and a data output interface.
5. the detection method of cooking fume remover duty according to claim 1 is characterized in that: the 3. described MCU module of step has following minimum instruction cycle length of 10 μ S; Described MCU module receives also at least 1000 current-voltage sampling signal datas of storage, and the current-voltage sampling signal data added up respectively and is averaged, and average current and average voltage are multiplied each other draws the average power of 1 sampling period at last.
6. the cooking fume remover working state detection device is characterized in that: be in series with mutual induction of voltage module and electric current mutual inductance module on the phase line of cooking fume remover; The communication ends of described mutual induction of voltage module and electric current mutual inductance module is connected into the electric energy measurement module; Described electric energy measurement module is connected into the MCU module by data bus.
7. cooking fume remover working state detection device according to claim 6 is characterized in that: described MCU module is provided with the RS232 data-interface.
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Cited By (6)
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| CN104281126A (en) * | 2014-09-12 | 2015-01-14 | 苏州博菡环保科技有限公司 | Oil fume eliminator online monitoring device and system |
| CN109239279A (en) * | 2018-10-26 | 2019-01-18 | 济南东之林智能软件有限公司 | Roast oil smoke on-Line Monitor Device, system and method |
| CN110274290A (en) * | 2019-06-18 | 2019-09-24 | 慈利县源辉环保科技有限责任公司 | A kind of oil fume purifier grease cleaning alarm method |
| CN111428185A (en) * | 2020-03-23 | 2020-07-17 | 河北华迪轩榕环境科技有限公司 | Professional algorithm for purifying efficiency of purifier |
| CN111692623A (en) * | 2020-07-28 | 2020-09-22 | 北京耀邦环保技术开发有限公司 | Resident building oil smoke purifier and system |
| CN111811010A (en) * | 2020-07-04 | 2020-10-23 | 北京耀邦环保技术开发有限公司 | Oil fume purification device and purification control method |
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Application publication date: 20111116 |