CN110186091B - Automatic cleaning control method for range hood - Google Patents
Automatic cleaning control method for range hood Download PDFInfo
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- CN110186091B CN110186091B CN201910461503.1A CN201910461503A CN110186091B CN 110186091 B CN110186091 B CN 110186091B CN 201910461503 A CN201910461503 A CN 201910461503A CN 110186091 B CN110186091 B CN 110186091B
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- temperature
- range hood
- cleaning
- external environment
- water outlet
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- 238000004140 cleaning Methods 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 101
- 238000012886 linear function Methods 0.000 claims description 15
- 230000007613 environmental effect Effects 0.000 description 7
- 230000003749 cleanliness Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000003517 fume Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- 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
- F24C15/2057—Removing cooking fumes using a cleaning liquid
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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)
- Washing And Drying Of Tableware (AREA)
Abstract
The invention discloses an automatic cleaning control method for a range hood, which comprises the following steps: starting a cleaning function, and collecting the current external environment temperature T; determining the water outlet temperature T required by the cleaning operation according to the functional relationship between the current external environment temperature T and the water outlet temperature T required by the range hood when the cleaning operation is performed; the cleaning work is started. When the automatic cleaning device is used, the functional relation between the external environment temperature T and the water outlet temperature T of the range hood during cleaning is stored in the controller in advance, then the range hood starts the cleaning function, the current external environment temperature T is collected, and the water outlet temperature T is determined according to the functional relation between the current external environment temperature T and the water outlet temperature T of the range hood during cleaning, so that the adaptability of the automatic cleaning function of the range hood to the external environment is fully increased, and the risk of water leakage in a steam generation stage during cleaning is reduced.
Description
Technical Field
The invention belongs to the technical field of gas water heaters, and particularly relates to an automatic cleaning control method for a range hood.
Background
The range hood that takes the self-cleaning function in prior art has the water pump (the water pump is including water sucking mouth and delivery port), and this kind of range hood generally all contains the steam generation stage at self-cleaning's in-process, will produce a large amount of high temperature steam and a small amount of high temperature hot water at this steam generation stage, and high temperature steam mainly used melts the greasy dirt, and the greasy dirt dissolves under high temperature steam, and a small amount of high temperature hot water washes the greasy dirt, and supplementary high temperature steam melts the greasy dirt, complements each other. The high-temperature hot water is mainly concentrated on the impeller to wash oil stains on the impeller, the box body can be filled with high-temperature steam, the oil stains are directly melted by the steam of the impeller, and the high-temperature steam outside the impeller and inside the box body can be condensed into water drops when encountering parts (such as an air inlet ring, a back plate, a connecting wire and the like) with lower temperature inside the range hood to form condensed water. When the amount of the condensed water exceeds the designed flow guide capacity, the condensed water which cannot be guided completely in the automatic cleaning process can be dropped from the gap of the oil net to form a water leakage phenomenon, and troubles are brought to consumers.
And along with external environment temperature's change, the temperature of the inside part of range hood (such as inlet air circle, backplate, connecting wire etc.) also can change, and under the certain circumstances of steam generation volume of the steam generation stage of cleaning process, the inside volume of producing the comdenstion water of range hood will change along with external environment temperature's change: when the environmental temperature is reduced, the temperature of the components in the range hood is correspondingly reduced, and the generated condensed water is increased; when the environmental temperature rises, the temperature of the components in the range hood rises correspondingly, and the generated condensed water is reduced;
the influence of external environment temperature factors is not added in the existing cleaning control program, so that the condensed water generated in the cleaning process is influenced by the factors, and the risk of water leakage in the steam generation stage in the cleaning process is increased.
Disclosure of Invention
In view of the above, the present invention is directed to provide an automatic cleaning control method for a range hood, wherein during a cleaning process, an external environment temperature is used as a reference factor, so that adaptability of an automatic cleaning function of the range hood to the external environment is increased, and a risk of water leakage in a steam generation stage during the cleaning process is reduced.
The technical scheme adopted by the invention is as follows: an automatic cleaning control method for a range hood, the method comprising:
starting a cleaning function, and collecting the current external environment temperature T;
determining the water outlet temperature T required by the cleaning operation according to the functional relationship between the current external environment temperature T and the water outlet temperature T required by the range hood when the cleaning operation is performed;
the cleaning work is started.
Preferably, the functional relationship between the current external environment temperature T and the water outlet temperature T required by the range hood when the range hood performs the cleaning operation is a linear functional relationship, and the linear functional relationship is as follows: the linear function relationship is as follows: t = k0T+b0Wherein k is0And b0The value range of T is determined according to the actual model test for the constant determined according to different models.
Preferably, the linear function relationship is T =0.09 × T +94.5 ℃, wherein T ranges from 5 ℃ to 40 ℃.
Preferably, the linear function relationship is T =0.06 × T +95.7 ℃, wherein T ranges from 5 ℃ to 40 ℃. Preferably, the functional relationship between the current external environment temperature T and the water outlet temperature T required by the range hood when the range hood performs the cleaning operation is a piecewise functional relationship, and the piecewise functional relationship is as follows:
preferably, the piecewise function relation is:
preferably, the piecewise function relation is:
preferably, the current external environment temperature is the temperature of a water pumping opening of a water pump in the range hood.
Preferably, the water outlet temperature required when the cleaning operation is executed is the water outlet temperature of a nozzle in the range hood.
Compared with the prior art, the functional relation between the external environment temperature T and the water outlet temperature T of the range hood during cleaning is stored in the controller in advance, then the range hood starts the cleaning function, the current external environment temperature T is collected during the cleaning process, the water outlet temperature T is determined according to the functional relation between the current external environment temperature T and the water outlet temperature T of the range hood during cleaning, and temperature control is performed according to the water outlet temperature T, so that the adaptability of the automatic cleaning function of the range hood to the external environment is fully increased, and meanwhile, the risk of water leakage in a steam generation stage during the cleaning process is reduced.
Drawings
Fig. 1 is a flowchart of an automatic cleaning control method for a range hood according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the invention provides an automatic cleaning control method for a range hood, which comprises the following steps:
starting a cleaning function, and collecting the current external environment temperature T;
determining the water outlet temperature T required by the cleaning operation according to the linear function relation between the current external environment temperature T and the water outlet temperature T required by the range hood when the cleaning operation is performed;
the cleaning work is started.
After the scheme is adopted, the functional relation between the external environment temperature T and the water outlet temperature T of the range hood during cleaning is stored in the controller in advance, then the range hood starts the cleaning function, the current external environment temperature T is collected in the cleaning process, the water outlet temperature T is determined according to the functional relation between the current external environment temperature T and the water outlet temperature T of the range hood during cleaning, and then the temperature control is carried out according to the water outlet temperature T, so that the adaptability of the automatic cleaning function of the range hood to the external environment is fully increased, and meanwhile, the risk of water leakage in the steam generation stage in the cleaning process is reduced.
Further, the linear function relationship is: t = k0T+b0Wherein k is0And b0Are constants determined according to different models.
Further, the functional relationship between the current external environment temperature T and the water outlet temperature T required by the range hood when the range hood performs the cleaning operation is a piecewise functional relationship, wherein the piecewise functional relationship is as follows:
Further, the current external environment temperature is the temperature of a water suction port of a water pump in the range hood.
Furthermore, the water outlet temperature required by the cleaning operation is the water outlet temperature of a nozzle in the range hood.
The embodiment of the invention provides a specific control algorithm for an automatic cleaning control method of a range hood, which comprises the following steps:
when the cleaning function is started, the lowest outlet water temperature of the nozzle outlet is determined to be T in the steam generation stage by detecting the water temperature of the water suction opening of the water pump in the oil fume suction (namely the current external environment temperature), wherein the detected temperature is TminTmax (here, the lowest outlet water temperature is set to ensure sufficient cleanliness, and the highest outlet water temperature is set to ensure an upper limit value of the steam amount in the tank), and the detected temperature T is set0Time corresponding to the water outlet temperature TminDetected temperature T1Corresponding to the effluent temperature Tmax, determining a linear function according to the two groups of parameters, wherein the form of the (linear) function can be determined as t = k0T+b0Wherein k is0And b0The fixed value is determined according to the two groups of parameters, and t is the water outlet temperature value of the nozzle needing to be controlled;
the above-mentioned (first order) linear function t = k0T+b0In k0And b0The specific numerical values and the specific estimation method of the piecewise function are as follows:
example 1:
the range hood provided in embodiment 1 is required to have a minimum cleaning degree of 90% during the cleaning process, and the range hood is tested at different environmental temperatures, and the data obtained by the test is as follows:
from the data in the above table, it can be seen that under different environmental temperatures (from 5 ℃ to 40 ℃ is tested), when the temperature of the outlet water of the nozzle reaches 95 ℃ in the range of 5 ℃ to 40 ℃, the cleaning degree can reach 90% of the design requirement, and the amount of the condensed water formed in the tank body is proper or less, when the temperature of the outlet water of the nozzle reaches 98 ℃, the cleaning degree can reach or exceed 95%, and the amount of the condensed water formed in the tank body is proper or less, and the condensed water under the two conditions can reach the process of no water dropping.
Based on the above data, specific embodiments are as follows:
is selected as the ambient temperature T0At 5 deg.C, the lowest temperature T of water outlet at nozzle outletmin=95 ℃; when the ambient temperature T1The highest water outlet temperature Tmax of the outlet of the nozzle is =98 ℃ when the temperature is 40 ℃; from these two sets of values, k in a (first order) linear function can be determined0And b0Or the piecewise function:
linear function (first order):
t = 0.09T +94.5 ℃, wherein T ranges from 5 ℃ to 40 ℃, T =95 ℃ when T is less than 5 ℃, T =98 ℃ when T is greater than 40 ℃, namely when the ambient temperature is less than 5 ℃, the outlet water temperature control value of the nozzle is 95 ℃, when the ambient temperature is greater than 40 ℃, the outlet water temperature control value of the nozzle is 98 ℃, when the ambient temperature is between 5 ℃ and 40 ℃, the outlet water temperature control value of the nozzle is calculated by a linear function, and the calculated temperature is rounded to obtain an integer.
Piecewise function mode: the outlet water temperature of the nozzle is controlled to be
Example 2:
the range hood provided in embodiment 2 is required to have a minimum cleaning degree of 90% during the cleaning process, and the range hood is tested at different environmental temperatures, and the data obtained by the test is as follows:
from the data in the above table, it can be seen that, in the temperature range of 5 ℃ to 40 ℃, when the outlet water temperature of the nozzle reaches 96 ℃, the cleaning degree can reach 90% of the design requirement, and the amount of the condensed water formed in the box body is also proper or less, when the outlet water temperature of the nozzle reaches 98 ℃, the cleaning degree can reach more than 97% at most, and the amount of the condensed water formed in the box body is proper or less, and the condensed water amount under the two conditions can reach the process of no water dropping.
Based on the above data, specific embodiments are as follows:
is selected as the ambient temperature T0At 5 deg.C, the lowest temperature T of water outlet at nozzle outletmin=96 ℃; when the ambient temperature T1And when the temperature is not less than 40 ℃, the highest water outlet temperature Tmax of the outlet of the nozzle is not less than 98 ℃. From these two sets of values, k in a (first order) linear function can be determined0And b0Or the piecewise function:
linear function (first order):
t =0.06 × T +95.7 ℃, wherein T ranges from 5 ℃ to 40 ℃, T =96 ℃ when T is less than 5 ℃, T =98 ℃ when T is greater than 40 ℃, namely when the ambient temperature is less than 5 ℃, the outlet water temperature control value of the nozzle is 96 ℃, when the ambient temperature is greater than 40 ℃, the outlet water temperature control value of the nozzle is 98 ℃, when the ambient temperature is between 5 ℃ and 40 ℃, the outlet water temperature control value of the nozzle is calculated by a linear function, and the calculated temperature is rounded to an integer.
Piecewise function mode: the outlet water temperature of the nozzle is controlled to be
The above algorithm is detailed in a control flow chart 1 and is realized in a program of a single chip microcomputer.
The model of the embodiment 1 is different from that of the embodiment 2, and the difference is mainly that the size of the wind cabinets is different, so that the same water outlet temperature is caused, the cleanliness and the amount of condensed water are different, and the parameters of the function are different. In practical application, the temperature of the water outlet can be adjusted to be higher, such as 99 ℃, 100 ℃ and the like according to practical conditions.
By the method, water leakage in the cleaning process at different environmental temperatures can be guaranteed, and the cleaning degree can be improved as much as possible according to different environmental temperatures.
After the control method of the embodiment of the invention is adopted, when in use, the functional relation between the external environment temperature T and the water outlet temperature T when the range hood is cleaned is stored in the controller in advance, then the range hood starts the cleaning function, and collects the current external environment temperature T in the control program of the steam generation stage of the cleaning process, determining the water outlet temperature T according to the linear function relationship between the current external environment temperature T and the water outlet temperature T when the range hood is cleaned, and then controlling the temperature according to the water outlet temperature T, namely, on the premise of satisfying that the cleaning degree is more than or equal to 90 percent, the amount of generated steam is adjusted according to the external environment temperature, therefore, the adaptability of the automatic cleaning function of the range hood to the external environment is improved, and the risk of water leakage in the steam generation stage in the cleaning process is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (1)
1. An automatic cleaning control method for a range hood is characterized by comprising the following steps:
starting a cleaning function, and collecting the current external environment temperature T;
determining the water outlet temperature T required by the cleaning operation according to the functional relationship between the current external environment temperature T and the water outlet temperature T required by the range hood when the cleaning operation is performed; the current external environment temperature is the temperature of a water suction port of a water pump in the range hood; the water outlet temperature required by the cleaning operation is the water outlet temperature of a nozzle in the range hood;
starting to execute cleaning work;
the functional relationship between the current external environment temperature T and the water outlet temperature T required by the range hood when the range hood executes the cleaning work is a linear functional relationship, and the linear functional relationship is as follows: t =0.09 × T +94.5 ℃, wherein T ranges from 5 ℃ to 40 ℃;
or the linear function relationship is T =0.06 × T +95.7 ℃, wherein the value range of T is 5-40 ℃;
or the functional relationship between the current external environment temperature T and the water outlet temperature T required by the range hood when the range hood executes the cleaning work is a piecewise functional relationship, wherein the piecewise functional relationship is as follows: the piecewise function relation is:
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| CN112855509A (en) * | 2019-11-27 | 2021-05-28 | 青岛海高设计制造有限公司 | Control method and device for water pump and integrated stove |
| CN112628819B (en) * | 2020-12-22 | 2022-01-04 | 张家口市杰星电子科技有限公司 | Online monitoring and purifying method and system for oil smoke |
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| BR112015022244B1 (en) * | 2013-03-15 | 2021-11-30 | Oy Halton Group Ltd | METHOD OF CONTROL OF A COLD WATER SPRAYING SYSTEM IN AN EXHAUST VENTILATION SYSTEM AND EXHAUST VENTILATION SYSTEM |
| CN105004065B (en) * | 2015-08-17 | 2018-07-10 | 杨文娟 | A kind of control method for water heater |
| CN205979955U (en) * | 2016-08-26 | 2017-02-22 | 建研科技发展（深圳）有限公司 | Novel oil removal equipment's cleaning system |
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