CN114216142A - Control method of oil fume filtering device and range hood - Google Patents
Control method of oil fume filtering device and range hood Download PDFInfo
- Publication number
- CN114216142A CN114216142A CN202111529146.1A CN202111529146A CN114216142A CN 114216142 A CN114216142 A CN 114216142A CN 202111529146 A CN202111529146 A CN 202111529146A CN 114216142 A CN114216142 A CN 114216142A
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- China
- Prior art keywords
- oil smoke
- filtering device
- oil
- control method
- smoke concentration
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001914 filtration Methods 0.000 title claims abstract description 91
- 239000003517 fume Substances 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000000779 smoke Substances 0.000 claims abstract description 155
- 238000001179 sorption measurement Methods 0.000 claims abstract description 38
- 238000010411 cooking Methods 0.000 claims abstract description 25
- 238000004140 cleaning Methods 0.000 claims description 17
- 238000005070 sampling Methods 0.000 claims description 6
- 239000006233 lamp black Substances 0.000 claims 1
- 239000004071 soot Substances 0.000 description 11
- 239000008187 granular material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- F24C15/2035—Arrangement or mounting of filters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention relates to a control method of an oil fume filtering device, which is characterized by comprising the following steps: when cooking is carried out, the range hood is controlled to carry out oil smoke suction work, oil smoke concentration data on the downstream side of the oil smoke filtering device in the cooking process are detected and obtained, the oil smoke concentration change rate V in the current cooking process is calculated and obtained according to the oil smoke concentration data, and the oil smoke adsorption capacity of the oil smoke filtering device is determined according to the oil smoke concentration change rate. The control method of the oil fume filtering device can accurately judge the adsorption capacity of the oil fume filtering device in real time. The invention also relates to a range hood, which comprises a machine shell with an oil smoke channel and a fan system arranged in the machine shell, wherein the range hood adopts the control method of the oil smoke filtering device; the air inlet end of the oil smoke channel is provided with an oil smoke filtering device on the casing, and the downstream side of the oil smoke filtering device is provided with an oil smoke concentration sensor on the casing.
Description
Technical Field
The invention relates to the technical field of range hoods, in particular to a control method of an oil fume filtering device and a range hood applying the control method of the oil fume filtering device.
Background
The fan is a core component in the range hood, the existing range hood usually adopts a centrifugal fan to suck and discharge oil smoke, and the centrifugal fan drives a impeller to rotate in a centrifugal volute by a motor to generate negative pressure, so that the oil smoke is pumped away and discharged outdoors.
The oil filtering work in the range hood is always an important content in the work of the range hood, and the range hood is usually provided with an oil fume filtering device at the front end of the range hood so as to play roles of safety protection and large oil fume particle adsorption. Oil smoke filter equipment can adopt the oil net structure to realize the oil smoke and filter among the prior art usually, in order to reduce the cleaning frequency to the oil net, reinforcing oil smoke adsorption efficiency also has additionally to set up disposable filter screen in order to be used for adsorbing the oil smoke granule, and this disposable filter screen is convenient to be changed. But along with the increase of oil stain thickness on the oil smoke filter equipment, the ability that oil smoke filter equipment adsorbed the greasy dirt can constantly descend, and large granule thing in the oil smoke can get into the cigarette machine inside and attach to in the fan system like this, can cause fan system problem even. Therefore, the detection of the oil fume adsorption capacity of the oil fume filtering device is very important.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a control method for an oil smoke filtering device, which can accurately determine the adsorption capacity of the oil smoke filtering device, in view of the above-mentioned prior art.
The second technical problem to be solved by the present invention is to provide a range hood using the control method of the oil smoke filtering device in view of the above prior art.
The technical scheme adopted by the invention for solving the first technical problem is as follows: a control method of an oil fume filtering device is characterized by comprising the following steps: when cooking is carried out, the range hood is controlled to carry out oil smoke suction work, oil smoke concentration data on the downstream side of the oil smoke filtering device in the cooking process are detected and obtained, the oil smoke concentration change rate V in the current cooking process is calculated and obtained according to the oil smoke concentration data, and the oil smoke adsorption capacity of the oil smoke filtering device is determined according to the oil smoke concentration change rate.
And calculating the variation delta V of the oil smoke concentration change rate V relative to the oil smoke concentration change rate basic value V0, wherein the delta V is V0-V, and determining the oil smoke adsorption capacity of the oil smoke filtering device according to the delta V.
Simply, Δ V is compared with a set variation threshold Vs, if Δ V is less than Vs, it is determined that the adsorption capacity of the soot filtering device is normal, otherwise, it is determined that the adsorption capacity of the soot filtering device is weak.
And the related work control of cleaning the oil fume filtering device is performed according to the adsorption capacity control of the oil fume filtering device in a humanized manner.
Preferably, the relevant work of cleaning the fume filtering device comprises cleaning reminding and/or self-cleaning.
Optionally, the basic value V0 of the change rate of the oil smoke concentration is a preset value; or
When the range hood is used for the first time, before cooking work begins or just before the cooking work begins, oil smoke concentration data A on the downstream side of the oil smoke filtering device is detected and obtained according to a set sampling period1、A2、……、Ai、……AnWherein i and n are natural numbers, i is more than or equal to 1 and less than or equal to n, and n is more than or equal to 2;
preferably, the method for calculating the oil smoke concentration change rate V is as follows: detecting and acquiring the oil smoke concentration at the downstream side of an oil smoke filtering device in the cooking process in real time, and adopting newly acquired oil smoke concentration data B1And the oil smoke concentration data B acquired in the previous sampling period2Calculating and obtaining the current oil smoke concentration change rate V; v ═ B1-B2|/B1。
The technical scheme adopted by the invention for solving the second technical problem is as follows: the utility model provides a range hood, includes the casing that has the oil smoke passageway, sets up the fan system in the casing, its characterized in that: the control method of the oil fume filtering device is applied;
an oil smoke filtering device is arranged at the air inlet end of the oil smoke channel on the casing, and an oil smoke concentration sensor is arranged at the downstream side of the oil smoke filtering device on the casing.
Simple structure just is better to oil smoke adsorption efficiency, oil smoke filter equipment is including the oil net that has the discharge orifice and set up the filter screen in the oil net downstream side.
Preferably, the oil smoke sensor is arranged in the shell at a position close to an air inlet of the fan system.
Compared with the prior art, the invention has the advantages that: the control method of the oil fume filtering device judges the oil fume adsorption capacity of the oil fume filtering device according to the oil fume concentration change rate at the downstream side of the oil fume filtering device, the oil fume adsorption capacity is judged more accurately, the judgment is more accurate particularly under the condition of higher oil fume concentration, the judgment is not influenced by factors such as a filtering structure, a cooking state, oil stain collection conditions and the like, and the judgment of the adsorption capacity of the oil fume filtering device is more accurate.
The range hood applying the control method of the oil fume filtering device can timely and accurately acquire the adsorption capacity condition of the oil fume filtering device in the range hood, and further control the oil fume suction work of the range hood and the treatment work of the oil fume filtering device according to specific conditions.
Drawings
Fig. 1 is a flowchart of a control method of a soot filtering device in an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1, the control method of the soot filtering device in this embodiment is as follows: when cooking, control range hood carries out oil smoke suction work, and the oil smoke that so range hood suction culinary art produced, after the oil smoke entered into the oil smoke passageway in the range hood, the entry end of oil smoke passageway usually can be provided with oil smoke filter equipment, so oil smoke filter equipment then can exert the adsorption efficiency to the oil smoke, and then makes the oil smoke granule in the oil smoke adsorbed on oil smoke filter equipment, and then gets into the aerobic concentration of oil smoke filter equipment downstream side and can correspondingly reduce.
In the working process of the range hood based on cooking work, detecting and acquiring oil smoke concentration data on the downstream side of an oil smoke filtering device in the cooking process, wherein the oil smoke concentration data is obtained by detecting after the oil smoke filtering device filters oil smoke, calculating and acquiring the oil smoke concentration change rate V in the current cooking process according to the oil smoke concentration data, and determining the oil smoke concentration change rate V according to specific needsFor example, the change rate of the oil smoke concentration in a certain time range can be calculated. In this embodiment, the method for calculating the change rate V of the oil smoke concentration is as follows: detecting and acquiring the oil smoke concentration at the downstream side of an oil smoke filtering device in the cooking process in real time, and adopting newly acquired oil smoke concentration data B1And the oil smoke concentration data B acquired in the previous sampling period2Calculating and obtaining the current oil smoke concentration change rate V; v ═ B1-B2|/B1. The oil smoke concentration change rate V calculated in the way is real-time data in the cooking process, is data integrating the oil smoke concentration data variation and the oil smoke concentration base number, can reflect the oil smoke adsorption capacity of the oil smoke filtering device more accurately, and thus determines the oil smoke adsorption capacity of the oil smoke filtering device according to the oil smoke concentration change rate.
According to specific needs, the oil smoke adsorption capacity can be represented by directly utilizing the oil smoke concentration change rate V, and especially under the condition of large oil smoke concentration, the oil smoke adsorption capacity of the oil smoke filtering device on the oil smoke can be accurately reflected in real time. When the oil smoke concentration is small, even if the change rate V of the oil smoke concentration is used for representing that the oil smoke adsorption capacity has certain deviation, when the oil smoke concentration is small, the requirement on the oil smoke adsorption capacity of an oil smoke filtering device is not high, so that the influence on the oil smoke filtering capacity of the range hood is small.
In this embodiment, the change amount Δ V of the soot concentration change rate V with respect to the soot concentration change rate base value V0 is calculated, and the soot absorption capacity of the soot filter device is determined based on Δ V. Wherein the oil smoke concentration change rate basic value V0 is a preset value, or when the range hood is used for the first time, before the cooking work begins or just before the cooking work begins, the oil smoke concentration data A at the downstream side of the oil smoke filtering device is detected and obtained according to a set sampling period1、A2、……、Ai、……AnWherein i and n are natural numbers, i is more than or equal to 1 and less than or equal to n, and n is more than or equal to 2;
specifically, Δ V is compared with a set variation threshold Vs, and if Δ V is less than Vs, it is determined that the adsorption capacity of the soot filtering device is normal, otherwise, it is determined that the adsorption capacity of the soot filtering device is weak. And controlling the relevant work of cleaning the oil fume filtering device according to the adsorption capacity of the oil fume filtering device. Related work in the cleaning of the soot filtering device includes cleaning reminders and/or self-cleaning. Meanwhile, under the condition that a user does not clean the oil fume filtering device in time, the working parameters of a fan system in the range hood can be adjusted according to the adsorption capacity condition of the oil fume filtering device.
The control method of the oil fume filtering device in the embodiment can be applied to various range hoods. In the present embodiment, a range hood to which the control method of the range hood filter device is applied will be described in detail by taking the range hood described below as an example.
The range hood in the embodiment comprises a machine shell with an oil smoke channel and a fan system arranged in the machine shell. The air inlet end of the oil smoke channel is provided with an oil smoke filtering device on the machine shell, and the air inlet ends of the oil smoke channels of different types of range hoods are slightly different, for example, for a side-draft range hood, the air inlet end of the oil smoke channel is positioned at the front side of the lower part of the machine shell. For the top-suction type range hood, the air inlet end of the oil smoke channel is positioned on the lower end surface of the shell.
The oil smoke filter equipment includes the oil net that has the discharge orifice, and in this embodiment, the discharge orifice of oil net is many bar holes of parallel arrangement. In order to improve the adsorption capacity to the oil smoke, the oil smoke filtering device also comprises a filter screen arranged at the downstream side of the oil screen. The filter screen can adopt a disposable filter layer structure, and the density of the upper holes of the filter screen can be larger than that of the upper overflowing holes of the oil screen, so that the adsorption capacity of oil smoke particles in oil smoke is improved. The filter screen can be attached to the inner side surface of the oil screen through a detected connecting structure.
The downstream side of the oil smoke filter device on the casing is provided with an oil smoke concentration sensor, and in order to better know the influence of oil smoke on the fan system, the oil smoke sensor in the embodiment is arranged at a position close to an air inlet of the fan system in the casing. The oil smoke concentration sensor can adopt various existing oil smoke concentration sensors, for example, an infrared oil smoke concentration sensor can be adopted, and the infrared oil smoke concentration sensor comprises an infrared transmitter and an infrared receiver which are oppositely arranged. During operation, the oil smoke concentration is determined through the light intensity obtained by the infrared receiver.
According to specific function requirements, a reminding device such as a buzzer or a display screen and the like for reminding a user to clean the oil fume filtering device can be arranged on the range hood. The range hood can also be provided with a self-cleaning device for self-cleaning the oil fume filtering device, and the self-cleaning device can adopt various self-cleaning devices in the prior art.
The control method of the oil fume filtering device judges the oil fume adsorption capacity of the oil fume filtering device according to the oil fume concentration change rate at the downstream side of the oil fume filtering device, the oil fume adsorption capacity is judged more accurately, the judgment is more accurate particularly under the condition of higher oil fume concentration, the judgment is not influenced by factors such as a filtering structure, a cooking state, oil stain collection conditions and the like, and the judgment of the adsorption capacity of the oil fume filtering device is more accurate.
The range hood applying the control method of the oil fume filtering device can timely and accurately acquire the adsorption capacity condition of the oil fume filtering device in the range hood, and further control the oil fume suction work of the range hood and the treatment work of the oil fume filtering device according to specific conditions.
Directional terms such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the invention, but are used herein for convenience of description only and are to be determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity.
Claims (10)
1. A control method of an oil fume filtering device is characterized by comprising the following steps: when cooking is carried out, the range hood is controlled to carry out oil smoke suction work, oil smoke concentration data on the downstream side of the oil smoke filtering device in the cooking process are detected and obtained, the oil smoke concentration change rate V in the current cooking process is calculated and obtained according to the oil smoke concentration data, and the oil smoke adsorption capacity of the oil smoke filtering device is determined according to the oil smoke concentration change rate.
2. The control method of the oily fume filtering device according to claim 1, characterized in that: and calculating the variation delta V of the oil smoke concentration change rate V relative to the oil smoke concentration change rate basic value V0, wherein the delta V is V-V0, and determining the oil smoke adsorption capacity of the oil smoke filtering device according to the delta V.
3. The control method of the oily fume filtering device according to claim 2, characterized in that: and comparing the delta V with a set variation threshold value Vs, if the delta V is less than the Vs, judging that the adsorption capacity of the oil fume filtering device is normal, otherwise, judging that the adsorption capacity of the oil fume filtering device is weak.
4. The control method of the oily fume filtering device according to claim 2 or 3, characterized in that: and controlling the relevant work of cleaning the oil fume filtering device according to the adsorption capacity of the oil fume filtering device.
5. The control method of the oily fume filtering device according to claim 4, characterized in that: the related work of cleaning the lampblack filtering device comprises cleaning reminding and/or self-cleaning.
6. The control method of the oily fume filtering device according to claim 2 or 3, characterized in that: the basic value V0 of the change rate of the oil smoke concentration is a preset value; or
When the range hood is used for the first time, before cooking work begins or just before the cooking work begins, the oil smoke concentration at the downstream side of the oil smoke filtering device is detected and obtained according to a set sampling periodDegree data A1、A2、……、Ai、……AnWherein i and n are natural numbers, i is more than or equal to 1 and less than or equal to n, and n is more than or equal to 2;
7. the control method of the oily fume filtering device according to any one of claims 1 to 3, characterized in that: the method for calculating the change rate V of the oil smoke concentration comprises the following steps: detecting and acquiring the oil smoke concentration at the downstream side of an oil smoke filtering device in the cooking process in real time, and adopting newly acquired oil smoke concentration data B1And the oil smoke concentration data B acquired in the previous sampling period2Calculating and obtaining the current oil smoke concentration change rate V; v ═ B1-B2|/B1。
8. The utility model provides a range hood, includes the casing that has the oil smoke passageway, sets up the fan system in the casing, its characterized in that: a control method using the oil smoke filtering device of any one of claims 1 to 7;
an oil smoke filtering device is arranged at the air inlet end of the oil smoke channel on the casing, and an oil smoke concentration sensor is arranged at the downstream side of the oil smoke filtering device on the casing.
9. The range hood of claim 8, wherein: the oil smoke filter device comprises an oil screen with an overflowing hole and a filter screen arranged on the downstream side of the oil screen.
10. The range hood of claim 8, wherein: the oil smoke sensor is arranged in the position, close to the air inlet of the fan system, in the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111529146.1A CN114216142A (en) | 2021-12-14 | 2021-12-14 | Control method of oil fume filtering device and range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111529146.1A CN114216142A (en) | 2021-12-14 | 2021-12-14 | Control method of oil fume filtering device and range hood |
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| CN114216142A true CN114216142A (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111529146.1A Pending CN114216142A (en) | 2021-12-14 | 2021-12-14 | Control method of oil fume filtering device and range hood |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110848781A (en) * | 2019-12-12 | 2020-02-28 | 海信(广东)厨卫系统有限公司 | Fume exhaust fan |
| CN111380090A (en) * | 2018-12-28 | 2020-07-07 | 宁波方太厨具有限公司 | Oil smoke filter equipment and applied range hood that has device |
| CN111380093A (en) * | 2018-12-28 | 2020-07-07 | 宁波方太厨具有限公司 | Self-cleaning range hood and self-cleaning control method |
| CN112071042A (en) * | 2020-09-04 | 2020-12-11 | 珠海格力电器股份有限公司 | Range hood monitoring method, device and equipment and range hood |
| CN112747349A (en) * | 2019-10-31 | 2021-05-04 | 青岛海尔智能技术研发有限公司 | Method and device for controlling direct-current range hood |
| CN112963879A (en) * | 2021-03-29 | 2021-06-15 | 珠海格力电器股份有限公司 | Range hood purification control method and device and range hood equipment |
-
2021
- 2021-12-14 CN CN202111529146.1A patent/CN114216142A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111380090A (en) * | 2018-12-28 | 2020-07-07 | 宁波方太厨具有限公司 | Oil smoke filter equipment and applied range hood that has device |
| CN111380093A (en) * | 2018-12-28 | 2020-07-07 | 宁波方太厨具有限公司 | Self-cleaning range hood and self-cleaning control method |
| CN112747349A (en) * | 2019-10-31 | 2021-05-04 | 青岛海尔智能技术研发有限公司 | Method and device for controlling direct-current range hood |
| CN110848781A (en) * | 2019-12-12 | 2020-02-28 | 海信(广东)厨卫系统有限公司 | Fume exhaust fan |
| CN112071042A (en) * | 2020-09-04 | 2020-12-11 | 珠海格力电器股份有限公司 | Range hood monitoring method, device and equipment and range hood |
| CN112963879A (en) * | 2021-03-29 | 2021-06-15 | 珠海格力电器股份有限公司 | Range hood purification control method and device and range hood equipment |
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Application publication date: 20220322 |