CN112558646A - Public flue oil smoke amount control system and control method - Google Patents
Public flue oil smoke amount control system and control method Download PDFInfo
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- CN112558646A CN112558646A CN202011385215.1A CN202011385215A CN112558646A CN 112558646 A CN112558646 A CN 112558646A CN 202011385215 A CN202011385215 A CN 202011385215A CN 112558646 A CN112558646 A CN 112558646A
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- Prior art keywords
- oil smoke
- value
- flow value
- flue
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
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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
Abstract
The invention discloses a public flue oil smoke volume control system and a control method, wherein the control method comprises the steps of setting an air leakage coefficient; collecting oil smoke flow values discharged by all the range hoods connected with the common flue, and adding the oil smoke flow values discharged by all the range hoods to obtain a first flow value; calculating an ideal emission value; collecting the oil smoke flow value discharged from the public flue to the environment, and recording as a second flow value; and if the second flow value is smaller than the ideal discharge value, the rotating speed of the exhaust fan is increased. The technical scheme includes that the sum of oil smoke flow values discharged by all the range hoods and an air leakage coefficient are utilized to calculate an ideal discharge value of a common flue under a normal condition, then the ideal discharge value is compared with an oil smoke flow value discharged from an actual common flue to the environment, if the oil smoke flow value discharged from the common flue to the environment is smaller than the ideal discharge value of the common flue under the normal condition, the common flue is proved to be blocked, and at the moment, the rotating speed of an exhaust fan is adjusted to accelerate the oil smoke discharged from the common flue.
Description
Technical Field
The invention relates to the technical field of kitchen flue systems, in particular to a public flue oil smoke volume control system and a public flue oil smoke volume control method.
Background
At present, high-rise buildings are built in cities, and part of the high-rise buildings adopts a common flue as a kitchen flue of each resident, namely, a range hood of each resident in the buildings is communicated with the common flue, an exhaust fan is arranged at the top end of the common flue, and the exhaust fan is used for actively exhausting oil smoke in the common flue.
The rotating speed of the exhaust fan is mainly controlled by detecting the resistance condition of the public flue in the prior art, and the resistance condition of the public flue in the technical scheme is actually influenced by multiple aspects, so that the blockage state of the public flue cannot be truly reflected, and the oil smoke exhaust effect is poor.
Disclosure of Invention
The invention aims to provide a public flue oil smoke volume control system and a control method, which are used for solving one or more technical problems in the prior art and at least providing a beneficial selection or creation condition.
The technical scheme adopted for solving the technical problems is as follows:
a method for controlling the amount of oil smoke in a common flue comprises the following steps:
step 100, setting the air leakage coefficient of the public flue;
200, respectively collecting oil smoke flow values discharged by all the range hoods connected with the common flue, and adding the oil smoke flow values discharged by all the range hoods to obtain a total oil smoke flow value which is recorded as a first flow value;
step 300, calculating an ideal discharge value according to the air leakage coefficient and the first flow value;
step 400, collecting the oil smoke flow value discharged from the public flue to the environment, and recording as a second flow value;
and 500, comparing the ideal discharge value with the second flow value, and if the second flow value is smaller than the ideal discharge value, increasing the rotating speed of the exhaust fan, otherwise, keeping the rotating speed of the exhaust fan unchanged.
As a further improvement of the above technical solution, in step 500, after the second flow value is smaller than the ideal discharge value and the rotation speed of the exhaust fan is increased, delaying for a period of time, collecting the flow value of the oil smoke exhausted from the common flue to the environment again, updating the second flow value, comparing the ideal discharge value and the second flow value again, and outputting a maintenance prompt signal if the second flow value is still smaller than the ideal discharge value.
As a further improvement of the above technical solution, the calculating of the air leakage coefficient in step 100 includes the following steps:
step 110, controlling the starting of part of range hoods connected with the common flue;
step 120, collecting the oil smoke flow values discharged by the started range hoods, and adding the oil smoke flow values discharged by the range hoods;
step 130, collecting the flow value of the oil smoke discharged from the public flue to the environment;
step 140, according to the expression QGo out＝QInto(1-A) calculating the air leakage coefficient of the common flue, wherein QGo outRepresenting the flow value, Q, of the fumes discharged from the common flue to the environmentIntoThe sum of the flow values of the oil smoke discharged by each started range hood is represented, and A represents an air leakage coefficient;
and 150, adjusting the number of the started range hoods, repeatedly executing the steps 110 to 140, and averaging two air leakage coefficients obtained by calculating twice before and after to obtain data serving as the final air leakage coefficient of the common flue.
The invention also discloses a public flue oil smoke volume control system, which comprises a public flue, a plurality of range hoods and an exhaust fan, wherein the public flue is provided with an air inlet and an air outlet;
the air inlet and the air outlet are respectively provided with a flow sensor;
the public flue oil smoke volume control system also comprises a processing module, and the flow sensor and the exhaust fan are respectively connected with the processing module;
the processing module comprises:
the setting unit is used for setting the air leakage coefficient of the public flue;
the first acquisition unit is used for acquiring oil smoke flow values discharged by all the range hoods connected with the common flue, and adding the oil smoke flow values discharged by all the range hoods to obtain a total oil smoke flow value which is recorded as a first flow value;
the second acquisition unit is used for acquiring the oil smoke flow value discharged from the public flue to the environment and recording the oil smoke flow value as a second flow value;
the calculation unit is used for calculating an ideal discharge value according to the air leakage coefficient and the first flow value;
a comparison unit for comparing the desired discharge value and the second flow value;
and the control unit is used for increasing the rotating speed of the exhaust fan when the second flow value is smaller than the ideal discharge value, otherwise, keeping the rotating speed of the exhaust fan unchanged.
As a further improvement of the above technical solution, the control unit is further configured to delay a period of time after the second flow value is smaller than the ideal discharge value and the rotation speed of the exhaust fan is increased, acquire the flow value of the oil smoke discharged from the common flue to the environment again, update the second flow value, compare the ideal discharge value and the second flow value again, and output a maintenance prompt signal if the second flow value is still smaller than the ideal discharge value.
As a further improvement of the technical scheme, the air outlet and the air inlet are respectively provided with a wireless communication module, and the flow sensor is connected with the processing module through the wireless communication module.
The invention has the beneficial effects that: the technical scheme includes that the sum of oil smoke flow values discharged by all range hoods and a preset air leakage coefficient are utilized to calculate an ideal discharge value of a common flue under a normal condition, then the ideal discharge value is compared with an oil smoke flow value discharged from the common flue to the environment in practical application, if the oil smoke flow value discharged from the common flue to the environment is smaller than the ideal discharge value of the common flue under the normal condition, the blockage state of the common flue is proved, and at the moment, the rotating speed of an exhaust fan is adjusted to accelerate the oil smoke discharged from the common flue.
Drawings
The invention is further described with reference to the accompanying drawings and examples;
FIG. 1 is a flow chart of the control method of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if words such as "a plurality" are described, the meaning is one or more, the meaning of a plurality is two or more, more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1, the application discloses a method for controlling the amount of oil smoke in a common flue, which comprises the following steps:
step 100, setting the air leakage coefficient of the public flue;
200, respectively collecting oil smoke flow values discharged by all the range hoods connected with the common flue, and adding the oil smoke flow values discharged by all the range hoods to obtain a total oil smoke flow value which is recorded as a first flow value;
step 300, calculating an ideal discharge value according to the air leakage coefficient and the first flow value;
step 400, collecting the oil smoke flow value discharged from the public flue to the environment, and recording as a second flow value;
and 500, comparing the ideal discharge value with the second flow value, and if the second flow value is smaller than the ideal discharge value, increasing the rotating speed of the exhaust fan, otherwise, keeping the rotating speed of the exhaust fan unchanged.
In this embodiment, before practical application, an air leakage coefficient of the common flue is set, where the air leakage coefficient refers to a ratio of an air amount difference at an inlet and an outlet of an air passage to a theoretical air amount, and the ideal discharge value of the common flue under normal and non-clogging conditions is obtained according to the set air leakage coefficient of the common flue and a sum of flow values of oil smoke discharged by each range hood, and is calculated according to the following expression, QGo out＝QInto(1-A), wherein QGo outRepresents the flow rate of the oil smoke discharged from the common flue to the environment, i.e. the ideal discharge value, Q, in step 300IntoAnd the sum of the flow values of the oil smoke discharged by the started range hoods is shown, and A represents an air leakage coefficient.
Specifically, in this embodiment, the sum of the oil smoke flow values exhausted by the range hoods and the preset air leakage coefficient are used to calculate an ideal exhaust value of the common flue under a normal condition, and then the ideal exhaust value is compared with the oil smoke flow value exhausted from the common flue to the environment in practical application.
As a further preferable implementation manner, in step 500 of this embodiment, after the second flow value is smaller than the ideal discharge value and the rotation speed of the exhaust fan is increased, delaying for a period of time, collecting the flow value of the oil smoke exhausted from the common flue to the environment again, updating the second flow value, comparing the ideal discharge value and the second flow value again, and outputting a maintenance prompt signal if the second flow value is still smaller than the ideal discharge value. In this embodiment, if the rotation speed of the exhaust fan is increased, the flow rate value (i.e., the second flow rate value) of the oil smoke discharged from the common flue to the environment is still smaller than the ideal discharge value, which proves that the increase of the rotation speed of the exhaust fan does not increase the flow rate value of the oil smoke discharged from the common flue to the environment, and at this time, a maintenance prompt signal needs to be output to the outside to prompt related personnel or units to perform maintenance and inspection on the common flue as soon as possible.
In a further preferred embodiment, in the present embodiment, the air leakage coefficient in step 100 needs to be calculated immediately after the installation of the common flue, the range hood, and the exhaust fan and before the common flue, the range hood, and the exhaust fan are put into use, and the calculation of the air leakage coefficient in step 100 includes the following steps:
step 110, controlling the starting of part of range hoods connected with the common flue;
step 120, collecting the oil smoke flow values discharged by the started range hoods, and adding the oil smoke flow values discharged by the range hoods;
step 130, collecting the flow value of the oil smoke discharged from the public flue to the environment;
step 140, according to the expression QGo out＝QInto(1-A) calculating the air leakage coefficient of the common flue, wherein QGo outRepresenting the flow value, Q, of the fumes discharged from the common flue to the environmentIntoThe sum of the flow values of the oil smoke discharged by each started range hood is represented, and A represents an air leakage coefficient;
and 150, adjusting the number of the started range hoods, repeatedly executing the steps 110 to 140, and averaging two air leakage coefficients obtained by calculating twice before and after to obtain data serving as the final air leakage coefficient of the common flue.
The application also discloses a public flue oil smoke volume control system, and a first embodiment of the public flue oil smoke volume control system comprises a public flue, a plurality of range hoods and an exhaust fan, wherein the public flue is provided with an air inlet and an air outlet;
the air inlet and the air outlet are respectively provided with a flow sensor;
the public flue oil smoke volume control system also comprises a processing module, and the flow sensor and the exhaust fan are respectively connected with the processing module;
the processing module comprises:
the setting unit is used for setting the air leakage coefficient of the public flue;
the first acquisition unit is used for acquiring oil smoke flow values discharged by all the range hoods connected with the common flue, and adding the oil smoke flow values discharged by all the range hoods to obtain a total oil smoke flow value which is recorded as a first flow value;
the second acquisition unit is used for acquiring the oil smoke flow value discharged from the public flue to the environment and recording the oil smoke flow value as a second flow value;
the calculation unit is used for calculating an ideal discharge value according to the air leakage coefficient and the first flow value;
a comparison unit for comparing the desired discharge value and the second flow value;
and the control unit is used for increasing the rotating speed of the exhaust fan when the second flow value is smaller than the ideal discharge value, otherwise, keeping the rotating speed of the exhaust fan unchanged.
As a further preferable implementation manner, in this embodiment, the control unit is further configured to delay a period of time after the second flow value is smaller than the ideal emission value and the rotation speed of the exhaust fan is increased, collect the flow value of the oil smoke exhausted from the common flue to the environment again, update the second flow value, compare the ideal emission value and the second flow value again, and output a maintenance prompt signal if the second flow value is still smaller than the ideal emission value.
Further as a preferred implementation manner, in this embodiment, the air outlet and the air inlet are respectively provided with a wireless communication module, and the flow sensor is connected with the processing module through the wireless communication module.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.
Claims (6)
1. A method for controlling the amount of oil smoke in a public flue is characterized by comprising the following steps: the method comprises the following steps:
step 100, setting the air leakage coefficient of the public flue;
200, respectively collecting oil smoke flow values discharged by all the range hoods connected with the common flue, and adding the oil smoke flow values discharged by all the range hoods to obtain a total oil smoke flow value which is recorded as a first flow value;
step 300, calculating an ideal discharge value according to the air leakage coefficient and the first flow value;
step 400, collecting the oil smoke flow value discharged from the public flue to the environment, and recording as a second flow value;
and 500, comparing the ideal discharge value with the second flow value, and if the second flow value is smaller than the ideal discharge value, increasing the rotating speed of the exhaust fan, otherwise, keeping the rotating speed of the exhaust fan unchanged.
2. The method for controlling the amount of oil smoke in the common flue according to claim 1, wherein: in the step 500, after the second flow value is smaller than the ideal discharge value and the rotation speed of the exhaust fan is increased, delaying for a period of time, collecting the oil smoke flow value exhausted from the common flue to the environment again, updating the second flow value, comparing the ideal discharge value with the second flow value again, and outputting a maintenance prompt signal if the second flow value is still smaller than the ideal discharge value.
3. The method for controlling the amount of oil smoke in the common flue according to claim 1, wherein: the calculation of the air leakage coefficient in the step 100 comprises the following steps:
step 110, controlling the starting of part of range hoods connected with the common flue;
step 120, collecting the oil smoke flow values discharged by the started range hoods, and adding the oil smoke flow values discharged by the range hoods;
step 130, collecting the flow value of the oil smoke discharged from the public flue to the environment;
step 140, according to the expression QGo out＝QInto(1-A) calculating the air leakage coefficient of the common flue, wherein QGo outRepresenting the flow value, Q, of the fumes discharged from the common flue to the environmentIntoThe sum of the flow values of the oil smoke discharged by each started range hood is represented, and A represents an air leakage coefficient;
and 150, adjusting the number of the started range hoods, repeatedly executing the steps 110 to 140, and averaging two air leakage coefficients obtained by calculating twice before and after to obtain data serving as the final air leakage coefficient of the common flue.
4. The utility model provides a public flue oil smoke volume control system which characterized in that: the range hood is installed in one-to-one correspondence with the air inlets of the public flue, and the exhaust fan is installed at the air outlet of the public flue;
the air inlet and the air outlet are respectively provided with a flow sensor;
the public flue oil smoke volume control system also comprises a processing module, and the flow sensor and the exhaust fan are respectively connected with the processing module;
the processing module comprises:
the setting unit is used for setting the air leakage coefficient of the public flue;
the first acquisition unit is used for acquiring oil smoke flow values discharged by all the range hoods connected with the common flue, and adding the oil smoke flow values discharged by all the range hoods to obtain a total oil smoke flow value which is recorded as a first flow value;
the second acquisition unit is used for acquiring the oil smoke flow value discharged from the public flue to the environment and recording the oil smoke flow value as a second flow value;
the calculation unit is used for calculating an ideal discharge value according to the air leakage coefficient and the first flow value;
a comparison unit for comparing the desired discharge value and the second flow value;
and the control unit is used for increasing the rotating speed of the exhaust fan when the second flow value is smaller than the ideal discharge value, otherwise, keeping the rotating speed of the exhaust fan unchanged.
5. A common flue smoke volume control system as claimed in claim 4, wherein: the control unit is further configured to delay a period of time after the second flow value is smaller than the ideal emission value and the rotation speed of the exhaust fan is increased, acquire the oil smoke flow value exhausted from the common flue to the environment again, update the second flow value, compare the ideal emission value with the second flow value again, and output a maintenance prompt signal if the second flow value is still smaller than the ideal emission value.
6. A common flue smoke volume control system as claimed in claim 4, wherein: the air outlet and the air inlet are respectively provided with a wireless communication module, and the flow sensor is connected with the processing module through the wireless communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011385215.1A CN112558646A (en) | 2020-12-01 | 2020-12-01 | Public flue oil smoke amount control system and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011385215.1A CN112558646A (en) | 2020-12-01 | 2020-12-01 | Public flue oil smoke amount control system and control method |
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| CN202011385215.1A Pending CN112558646A (en) | 2020-12-01 | 2020-12-01 | Public flue oil smoke amount control system and control method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865991A (en) * | 2014-11-21 | 2015-08-26 | 苏州工业园区设计研究院股份有限公司 | Serviced apartment concentrated oil-smoke emission control system and control method thereof |
| CN110375365A (en) * | 2019-07-24 | 2019-10-25 | 宁波方太厨具有限公司 | A kind of building intelligent smoke evacuation system and its control method |
| CN111102613A (en) * | 2018-10-26 | 2020-05-05 | 宁波方太厨具有限公司 | Central flue system and air quantity adjusting method thereof |
| CN111706890A (en) * | 2020-05-26 | 2020-09-25 | 宁波方太厨具有限公司 | Operation control method of centralized smoke exhaust system of building |
-
2020
- 2020-12-01 CN CN202011385215.1A patent/CN112558646A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865991A (en) * | 2014-11-21 | 2015-08-26 | 苏州工业园区设计研究院股份有限公司 | Serviced apartment concentrated oil-smoke emission control system and control method thereof |
| CN111102613A (en) * | 2018-10-26 | 2020-05-05 | 宁波方太厨具有限公司 | Central flue system and air quantity adjusting method thereof |
| CN110375365A (en) * | 2019-07-24 | 2019-10-25 | 宁波方太厨具有限公司 | A kind of building intelligent smoke evacuation system and its control method |
| CN111706890A (en) * | 2020-05-26 | 2020-09-25 | 宁波方太厨具有限公司 | Operation control method of centralized smoke exhaust system of building |
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Application publication date: 20210326 |
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