CN113154480B - Fume exhaust fan - Google Patents

Fume exhaust fan Download PDF

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Publication number
CN113154480B
CN113154480B CN202010008994.7A CN202010008994A CN113154480B CN 113154480 B CN113154480 B CN 113154480B CN 202010008994 A CN202010008994 A CN 202010008994A CN 113154480 B CN113154480 B CN 113154480B
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China
Prior art keywords
smoke
acquisition module
current
range hood
current acquisition
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Application number
CN202010008994.7A
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Chinese (zh)
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CN113154480A (en
Inventor
何勇
何立博
何崇伟
王磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Fotile Kitchen Ware Co Ltd
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Ningbo Fotile Kitchen Ware Co Ltd
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Priority to CN202010008994.7A priority Critical patent/CN113154480B/en
Publication of CN113154480A publication Critical patent/CN113154480A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2021—Arrangement or mounting of control or safety systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)

Abstract

The invention relates to a range hood, which comprises a body, wherein an air exhaust duct is arranged in the body, an air inlet and an air outlet are arranged on the body, and a fan system is arranged in the air exhaust duct, and the range hood is characterized in that: the smoke concentration value in the smoke is calculated by the controller according to the current value detected by the current acquisition module, and then the smoke concentration value detected by the smoke sensor is subtracted from the water vapor concentration value to obtain the oil smoke concentration value in the smoke. The invention has the advantages that: the water vapor and the oil smoke in the smoke can be distinguished, so that the accurate oil smoke concentration can be detected.

Description

Fume exhaust fan
Technical Field
The invention relates to a range hood.
Background
The range hood has become an indispensable kitchen appliance for people since the entrance into China in the nineties of the last century. The main functions of the kitchen ventilator are that oil smoke generated when a user cooks is sucked from the air inlet through the impeller of the fan system, the oil smoke is filtered by using the filter screen and the impeller at the air inlet, and the filtered oil smoke is discharged from the air outlet, so that the kitchen environment is purified.
The cooking fume is used for generating fume in the cooking process, and mainly comprises water vapor and oil fume. However, when the range hood is used for sucking and exhausting smoke, the water vapor and the oil smoke are not distinguished. Some existing range hoods detect the concentration of an oil smoke mixture through an infrared smoke sensor, and adjust the rotating speed of a fan according to the signal size of the oil smoke mixture. However, the detection of the infrared smoke sensor by the water vapor in the smoke will interfere, and the detection of the oil smoke concentration is inaccurate.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a range hood capable of distinguishing oil smoke and water vapor so as to accurately obtain the concentration of the oil smoke in view of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a range hood, includes the organism, is equipped with the wind channel of airing exhaust in the organism, is equipped with air intake and air exit on the organism, is equipped with fan system, its characterized in that in the wind channel of airing exhaust: a smoke sensor is arranged in the air exhaust duct or at the air inlet, an electrolytic cell is arranged on a path of smoke flowing into the air inlet in the air exhaust duct or outside the machine body, an electrolytic substance which is ionized when meeting water is arranged in the electrolytic cell, a first electrode and a second electrode which are contacted with the electrolytic substance are inserted in the electrolytic cell, one end of the first electrode is electrically connected with a first end of the current acquisition module, a second end of the current acquisition module is connected with the positive pole of the direct current power supply, and the negative pole of the direct current power supply is electrically connected with the second electrode; the current acquisition module and the smoke sensor are electrically connected with the controller, and the controller calculates the water vapor concentration value C in smoke according to the current value detected by the current acquisition module Water vapour And then subtracting the water vapor concentration value from the smoke concentration value detected by the smoke sensor to obtain the oil smoke concentration value in the smoke.
As an improvement, the controller calculates the water vapor concentration value in the smoke according to the following formula:
C water vapour ＝618.55I 3 -155.92I 2 +0.55548I
Wherein, I is the current value detected by the current acquisition module, and the unit is mA.
And the lower part of the electrolytic cell is provided with an electric heating sheet capable of heating the electrolytic substance, and the controller is also electrically connected with the electric heating sheet and can control the heating power of the electric heating sheet. The heat generated by the heating plate dries the water vapor from the smoke in the electrolytic cell for the next continuous use.
And the controller controls the heating power of the electric heating piece according to the current value detected by the current acquisition module.
In another improvement, the controller controls the heating power P of the electric heating sheet according to the following formula:
P＝646.15I
wherein, I is the current value detected by the current acquisition module, the unit is mA, and the unit of the heating power P is W.
And the controller controls the fan system to operate at a first preset rotating speed according to the current value detected by the current acquisition module when the current is smaller than a preset value, otherwise controls the fan system to operate at a second preset rotating speed which is smaller than the first preset rotating speed.
And then, the controller intelligently adjusts the rotating speed of the fan according to the current value detected by the current acquisition module, and the rotating speed of the fan corresponds to the current value one by one, so that stepless adjustment is realized.
Compared with the prior art, the invention has the advantages that: the water vapor and the oil smoke in the smoke can be distinguished, so that the accurate oil smoke concentration can be detected.
Drawings
Fig. 1 is a schematic structural diagram of a range hood in an embodiment of the invention.
Fig. 2 is a schematic connection diagram of an electrical functional module according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The range hood as shown in figure 1 comprises a body 1, an exhaust air duct is arranged in the body, a smoke collecting hood 11 is arranged at the lower part of the body 1, an air inlet is arranged on the smoke collecting hood 11, an air outlet is arranged at the top of the body, a fan system 9 is arranged in the exhaust air duct, a smoke sensor 2 is arranged in the exhaust air duct, the smoke sensor 2 can be arranged at the air inlet, an electrolytic cell 3 is arranged below the air inlet of the smoke collecting hood 11, the electrolytic cell 3 can also be arranged in the air inlet or the exhaust air duct,an electrolytic substance 4 which is ionized when meeting water is arranged in the electrolytic cell 3, a first electrode 31 and a second electrode 32 which are contacted with the electrolytic substance are inserted in the electrolytic cell 3, one end of the first electrode 31 is electrically connected with a first end of the current acquisition module 8, a second end of the current acquisition module 8 is connected with the anode of the direct current power supply 5, and the cathode of the direct current power supply 5 is electrically connected with the second electrode 32; the current acquisition module 8 and the smoke sensor 2 are both electrically connected with the controller 6, and the controller 6 calculates the water vapor concentration value C in smoke according to the current value detected by the current acquisition module 8 Water vapour Then subtracting the water vapor concentration value from the smoke concentration value detected by the smoke sensor to obtain the oil smoke concentration value in the smoke, namely:
C general assembly -C Water vapour ＝C Oil smoke
Wherein, C General assembly The concentration of the oil smoke and the water vapor detected by a smoke sensor in the range hood is g/m 3 ；
C Water vapour Is the concentration of water vapor in the range hood in g/m 3 ；
C Oil smoke Is the concentration of the oil smoke in the range hood, g/m 3
The controller calculates the water vapor concentration value in the smoke according to the following formula:
C water vapour ＝618.55I 3 -155.92I 2 +0.55548I
Wherein, I is the current value detected by the current acquisition module, and the unit is mA.
The lower part of the electrolytic cell 3 is provided with an electric heating sheet 7 which can heat the electrolytic substance, and the controller 6 is also electrically connected with the electric heating sheet 7 and can control the heating power of the electric heating sheet. The controller controls the heating power P of the electric heating sheet according to the following formula:
P＝646.15I
wherein, I is the current value detected by the current acquisition module, the unit is mA, and the unit of the heating power P is W.
The controller controls the fan system to operate at a first preset rotating speed according to the current value detected by the current acquisition module when the current is smaller than a preset value, otherwise, controls the fan system to operate at a second preset rotating speed which is smaller than the first preset rotating speed, and the control is simpler in the mode. In addition, the controller can also intelligently adjust the rotating speed of the fan system according to the current value detected by the current acquisition module, and the rotating speed of the fan system corresponds to the current value one by one, so that the stepless adjustment of the rotating speed of the fan system is realized.

Claims (7)

1. The utility model provides a range hood, includes the organism, is equipped with the wind channel of airing exhaust in the organism, is equipped with air intake and air exit on the organism, is equipped with fan system, its characterized in that in the wind channel of airing exhaust: a smoke sensor is arranged in the air exhaust duct or at the air inlet, an electrolytic cell is arranged on a path of smoke flowing into the air inlet in the air exhaust duct or outside the machine body, an electrolytic substance which is ionized when meeting water is arranged in the electrolytic cell, a first electrode and a second electrode which are contacted with the electrolytic substance are inserted in the electrolytic cell, one end of the first electrode is electrically connected with a first end of the current acquisition module, a second end of the current acquisition module is connected with the positive pole of the direct current power supply, and the negative pole of the direct current power supply is electrically connected with the second electrode; the current acquisition module and the smoke sensor are electrically connected with the controller, and the controller calculates the water vapor concentration value C in smoke according to the current value detected by the current acquisition module Water vapour And then subtracting the water vapor concentration value from the smoke concentration value detected by the smoke sensor to obtain the oil smoke concentration value in the smoke.
2. The range hood of claim 1, wherein: the controller calculates the water vapor concentration value in the smoke according to the following formula:
C water vapour ＝618.55I 3 -155.92I 2 +0.55548I
Wherein, I is the current value detected by the current acquisition module, and the unit is mA.
3. The range hood of claim 1 or 2, wherein: the lower part of the electrolytic cell is provided with an electric heating sheet capable of heating the electrolytic substance, and the controller is also electrically connected with the electric heating sheet and can control the heating power of the electric heating sheet.
4. The range hood of claim 3, wherein: the controller controls the heating power of the electric heating sheet according to the current value detected by the current acquisition module.
5. The range hood of claim 4, wherein: the controller controls the heating power P of the electric heating sheet according to the following formula:
P＝646.15I
wherein, I is the current value detected by the current acquisition module, the unit is mA, and the unit of the heating power P is W.
6. The range hood of claim 1 or 2, wherein: the controller controls the fan system to operate at a first preset rotating speed according to the current value detected by the current acquisition module when the current is smaller than a preset value, otherwise controls the fan system to operate at a second preset rotating speed which is smaller than the first preset rotating speed.
7. The range hood of claim 1 or 2, wherein: the controller intelligently adjusts the rotating speed of the fan system according to the current value detected by the current acquisition module, and the rotating speed of the fan system corresponds to the current value one by one, so that stepless adjustment is realized.
CN202010008994.7A 2020-01-06 2020-01-06 Fume exhaust fan Active CN113154480B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010008994.7A CN113154480B (en) 2020-01-06 2020-01-06 Fume exhaust fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010008994.7A CN113154480B (en) 2020-01-06 2020-01-06 Fume exhaust fan

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Publication Number Publication Date
CN113154480A CN113154480A (en) 2021-07-23
CN113154480B true CN113154480B (en) 2022-08-12

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Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002228166A (en) * 2001-02-05 2002-08-14 Matsushita Electric Ind Co Ltd Cooking unit
CN102147350A (en) * 2011-03-17 2011-08-10 何宗彦 Method and device for fast detection of aerosol particle concentration and size distribution
JP2013040763A (en) * 2012-10-24 2013-02-28 Mitsubishi Electric Corp Cooking device
CN103353137A (en) * 2013-07-02 2013-10-16 德意电器股份有限公司 Range hood with air regulation function
JP2014145518A (en) * 2013-01-29 2014-08-14 Panasonic Corp Range hood
CN105299716A (en) * 2014-08-01 2016-02-03 青岛海尔智能技术研发有限公司 Smoke exhauster as well as smoke detection method and wind speed adjusting method thereof
CN106461234A (en) * 2014-05-01 2017-02-22 布罗恩-努托恩有限责任公司 Sensor-enabled range hood system and method
CN108389909A (en) * 2018-01-31 2018-08-10 京东方科技集团股份有限公司 Thin film transistor (TFT) and preparation method thereof, display device and detection ion concentration method
CN108548199A (en) * 2018-03-08 2018-09-18 佛山市云米电器科技有限公司 A kind of intelligent fume exhauster wind speed is adjusted a wage scale method and device
CN108870495A (en) * 2018-08-20 2018-11-23 深圳北鱼信息科技有限公司 intelligent range hood
CN109654559A (en) * 2018-12-29 2019-04-19 佛山市云米电器科技有限公司 A kind of healthy cooking system that can identify steam and oil smoke
CN109669011A (en) * 2019-01-26 2019-04-23 广州市绿森环保设备有限公司 A kind of VOCS on-line monitoring terminal and its application method based on cloud
CN109752299A (en) * 2018-12-25 2019-05-14 上海龙涤环保技术工程有限公司 A kind of oil smoke online data acquisition monitoring device

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002228166A (en) * 2001-02-05 2002-08-14 Matsushita Electric Ind Co Ltd Cooking unit
CN102147350A (en) * 2011-03-17 2011-08-10 何宗彦 Method and device for fast detection of aerosol particle concentration and size distribution
JP2013040763A (en) * 2012-10-24 2013-02-28 Mitsubishi Electric Corp Cooking device
JP2014145518A (en) * 2013-01-29 2014-08-14 Panasonic Corp Range hood
CN103353137A (en) * 2013-07-02 2013-10-16 德意电器股份有限公司 Range hood with air regulation function
CN106461234A (en) * 2014-05-01 2017-02-22 布罗恩-努托恩有限责任公司 Sensor-enabled range hood system and method
CN105299716A (en) * 2014-08-01 2016-02-03 青岛海尔智能技术研发有限公司 Smoke exhauster as well as smoke detection method and wind speed adjusting method thereof
CN108389909A (en) * 2018-01-31 2018-08-10 京东方科技集团股份有限公司 Thin film transistor (TFT) and preparation method thereof, display device and detection ion concentration method
CN108548199A (en) * 2018-03-08 2018-09-18 佛山市云米电器科技有限公司 A kind of intelligent fume exhauster wind speed is adjusted a wage scale method and device
CN108870495A (en) * 2018-08-20 2018-11-23 深圳北鱼信息科技有限公司 intelligent range hood
CN109752299A (en) * 2018-12-25 2019-05-14 上海龙涤环保技术工程有限公司 A kind of oil smoke online data acquisition monitoring device
CN109654559A (en) * 2018-12-29 2019-04-19 佛山市云米电器科技有限公司 A kind of healthy cooking system that can identify steam and oil smoke
CN109669011A (en) * 2019-01-26 2019-04-23 广州市绿森环保设备有限公司 A kind of VOCS on-line monitoring terminal and its application method based on cloud

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