CN113883571A - Residence centralized smoke exhaust control method and device - Google Patents
Residence centralized smoke exhaust control method and device Download PDFInfo
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- CN113883571A CN113883571A CN202111314452.3A CN202111314452A CN113883571A CN 113883571 A CN113883571 A CN 113883571A CN 202111314452 A CN202111314452 A CN 202111314452A CN 113883571 A CN113883571 A CN 113883571A
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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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F17/00—Vertical ducts; Channels, e.g. for drainage
- E04F17/02—Vertical ducts; Channels, e.g. for drainage for carrying away waste gases, e.g. flue gases; Building elements specially designed therefor, e.g. shaped bricks or sets thereof
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Abstract
The invention provides a method and a device for controlling centralized smoke exhaust of a house, which relate to the technical field of central smoke exhaust hoods and comprise the following steps: when the opening and closing state of at least one air volume control valve is changed, acquiring a first state signal sent by the air volume control valve with the changed opening and closing state; adjusting the working frequency of a fan according to a first state signal sent by each air volume control valve so as to enable the common flue to keep a negative pressure state; determining a second state signal corresponding to each air volume control valve in the opening state according to the relative position between the air volume control valves in the opening state at present and the corresponding relation between the resistance of the air volume control valve and the working state which is determined in advance; and sending a corresponding second state signal to each air volume control valve in the opening state so as to adjust the working state of the air volume control valve in the opening state. The invention can prevent oil smoke from flowing back to the kitchen, improve the smoke exhaust efficiency and ensure the air quantity balance of the bottom layer and the top layer.
Description
Technical Field
The invention relates to the technical field of central smoke suction hoods, in particular to a centralized smoke exhaust control method and device for a house.
Background
As the high-rise residence is generally provided with the public flue, the kitchen discharges the oil smoke into the public flue through the smoke hood, and the public flue is provided with a unique air outlet on the roof and discharges the oil smoke to the roof of the residence through the public flue.
However, the existing public flue has poor air tightness and a plurality of air leakage points, after the smoke hood discharges oil smoke into the public flue, the air pressure in the public flue is higher than that of a kitchen, the oil smoke can be back to the kitchen from the air leakage points, the smoke discharging efficiency is low, and the kitchen which is not in use can be interfered by other kitchen oil smoke.
Disclosure of Invention
The invention aims to provide a residence centralized smoke exhaust control method and device, which can prevent oil smoke from returning to a kitchen and improve smoke exhaust efficiency.
In a first aspect, a centralized smoke exhaust control method for a residence provided by the embodiments of the present invention is applied to a controller in a centralized smoke exhaust system, where the centralized smoke exhaust system includes a common flue, a connection pipe on each floor, a smoke hood in each floor kitchen, a fan installed in the common flue, a controller, and an air volume control valve, the connection pipe on each floor is connected to the common flue and the smoke hood in each floor kitchen, and each connection pipe is installed with the air volume control valve; the controller is respectively connected with the fan and each air volume control valve; the air volume control valve is connected with the smoke hood; the method comprises the following steps:
when the opening and closing state of at least one air volume control valve is changed, acquiring a first state signal sent by the air volume control valve with the changed opening and closing state; when the opening and closing state of the smoke hood is changed, the opening and closing state of the air volume control valve connected with the smoke hood is correspondingly changed; the first state signal at least comprises opening state information and closing state information of the air volume control valve;
and adjusting working parameters of the fan according to the first state signal sent by each air volume control valve so as to keep the common flue in a negative pressure state.
In an optional embodiment, the operating parameter is an operating frequency, and the adjusting of the operating parameter of the fan according to the first status signal sent by each of the air volume control valves to keep the common flue in a negative pressure state includes:
determining the number of the air volume control valves in the opening state at present according to the first state signal sent by each air volume control valve;
determining the working frequency of the fan according to the number of the air volume control valves in the opening state at present and the following formula:
f＝fstarting point+Δf×n；
In the above formula, f is the working frequency of the fan; f. ofStarting pointThe starting frequency of the fan in initial work is set; Δ f is the incremental frequency of the fan when each air volume control valve is started; n is the number of the air volume control valves in the opening state at present, and n is a natural number.
In an alternative embodiment, the method further comprises:
determining a second state signal corresponding to each air volume control valve in the opening state according to the relative position between the air volume control valves in the opening state at present and the corresponding relation between the resistance of the air volume control valve and the working state which is determined in advance; the second state signal is a signal related to the opening degree of the air volume control valve;
and sending a corresponding second state signal to each air volume control valve in the opening state at present so that each air volume control valve in the opening state at present adjusts the working state according to the corresponding second state signal.
In an optional embodiment, when the open/close state of at least one of the air volume control valves is changed, the step of acquiring a first state signal sent by the air volume control valve whose open/close state is changed further includes:
and sending the first state signal to the air volume control valves of other floors.
In an optional embodiment, determining a second state signal corresponding to each air volume control valve currently in an open state according to a relative position between the air volume control valves currently in the open state and a predetermined corresponding relationship between resistance of the air volume control valves and a working state includes:
sequencing each air volume control valve in an opening state from low to high according to the floor where the air volume control valve is located so as to determine the sequence between the air volume control valves in the opening state at present;
determining a second state signal S-S (P) corresponding to each air volume control valve currently in an opening statei) (ii) a Wherein, PiIs the resistance of the ith air volume control valve which is currently in an open state, S is a second state signal, S (P)i) The resistance Pi of the air volume control valve is a corresponding relation formula with the working state S; and determining P according toi：
Pi＝PStarting point+ΔP×(i-1)；
In the above formula, i is the sequence number of the air volume control valve currently in the open state, and i is 1, 2, 3 … …; pStarting pointThe initial resistance of the air volume control valve; and delta P is the incremental resistance of the fan when each air quantity control valve is started.
In an optional embodiment, the air volume control valve is an electric valve; the second state signal is one of an angle of the air volume control valve, a time required for opening the air volume control valve, or a stroke of the air volume control valve when the air volume control valve is opened.
In a second aspect, the centralized smoke exhaust control method for the residence provided by the embodiment of the invention is applied to an air volume regulating valve in a centralized smoke exhaust system, the centralized smoke exhaust system comprises a common flue, a connecting pipe of each floor, a smoke hood of each floor kitchen, a fan, a controller and an air volume control valve, the connecting pipe of each floor is respectively connected with the common flue and the smoke hood of each floor kitchen, and the air volume control valve is installed on each connecting pipe; the controller is respectively connected with the fan and each air volume control valve, and the air volume control valves of all floors are connected with each other; the air volume control valve is connected with the smoke hood; the method comprises the following steps:
when the opening and closing state is changed, a first state signal is sent to a controller, so that the controller adjusts the working parameters of the fan according to the first state signal, and the public flue is kept in a negative pressure state; wherein the first state signal at least comprises opening state information and closing state information of the air volume control valve.
In an alternative embodiment, the method further comprises:
receiving a first state signal sent by an air volume control valve with a changed opening and closing state;
determining a corresponding second state signal according to the relative position between the air volume control valves in the opening state at present and the corresponding relation between the resistance of the air volume control valves and the working state which is predetermined; the second state signal is a signal related to the opening degree of the air volume control valve;
and adjusting the working state according to the second state signal.
In a third aspect, the centralized smoke exhaust control device for the residence provided by the embodiment of the invention is applied to a controller in a centralized smoke exhaust system, the centralized smoke exhaust system comprises a common flue, a connecting pipe of each floor, a smoke hood of each floor kitchen, a fan installed in the common flue, a controller and an air volume control valve, the connecting pipe of each floor is respectively connected with the common flue and the smoke hood of each floor kitchen, and the air volume control valve is installed on each connecting pipe; the controller is respectively connected with the fan and each air volume control valve; the air volume control valve is connected with the smoke hood; the device comprises:
the acquisition module is used for acquiring a first state signal sent by the air volume control valve with the changed opening and closing state when the opening and closing state of at least one air volume control valve is changed; when the opening and closing state of the smoke hood is changed, the opening and closing state of the air volume control valve connected with the smoke hood is correspondingly changed; the first state signal at least comprises opening state information and closing state information of the air volume control valve;
and the adjusting module is used for adjusting the working parameters of the fan according to the first state signals sent by each air volume control valve so as to enable the common flue to keep a negative pressure state.
In a fourth aspect, an electronic device provided by an embodiment of the present invention includes a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the steps of the method according to any one of the foregoing embodiments when executing the computer program.
In a fifth aspect, an embodiment of the present invention provides a computer-readable medium having non-volatile program code executable by a processor, where the program code causes the processor to execute the method described in any one of the foregoing embodiments.
According to the method and the device for controlling centralized smoke exhaust of the house, when the opening and closing state of the air volume control valve is changed, the working parameters of the fan are adjusted through the acquired first state signal of the air volume control valve, so that the negative pressure is formed in the common flue, the working state of the fan is adjusted in time when a smoke hood is opened or closed, and the common flue is kept in the negative pressure state all the time; the oil smoke is prevented from being back-stringed, and the smoke exhaust efficiency is improved; the invention can improve the user experience, and the method is simple and easy to realize.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a centralized smoke evacuation control method for a residence according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a centralized smoke exhaust system according to an embodiment of the present invention;
fig. 3 is a schematic system diagram of a centralized smoke exhaust system according to an embodiment of the present invention;
fig. 4 is another flowchart of a centralized smoke evacuation control method for a residence according to an embodiment of the present invention;
fig. 5 is a system schematic diagram of a centralized smoke evacuation control device for a residence according to an embodiment of the present invention;
FIG. 6 is a system diagram of an electronic device according to an embodiment of the invention;
fig. 7 is a flowchart of a centralized smoke evacuation control method for a residence according to a second embodiment of the present invention;
fig. 8 is a system schematic diagram of a centralized smoke exhaust system according to a second embodiment of the present invention.
Icon: 21-a common flue; 22-connecting tube; 23-smoke hood; 24-a fan; 25-a controller; 26-air volume control valve; 27-a smoke hood control panel; 51-an acquisition module; 52-an adjustment module; 400-an electronic device; 401 — a communication interface; 402-a processor; 403-a memory; 404-bus.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "first", "second", and the like are used for distinguishing between the descriptions and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as meaning either a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The high-rise residence is generally provided with a public flue, an air outlet is arranged at the top of the building of the public flue, the smoke hood is used for pumping and exhausting oil smoke in a kitchen into the public flue, and the oil smoke reaches the air outlet through the public flue and is exhausted.
The performance of the smoke hood is better and better, the air volume and the air pressure are improved year by year, but the public flue in a high-rise residence has not been greatly improved, and the problem of poor air tightness exists all the time. When the smoke hood discharges the oil smoke into the public flue, the air pressure in the public flue is higher than that of a kitchen, so that the oil smoke is connected back to the kitchen from an air leakage point, the smoke discharging efficiency is low, and the kitchen which is not in use is interfered by other kitchen oil smoke.
To above-mentioned problem, if the mode through the amount of wind, the wind pressure that increases the petticoat pipe is discharged fume, can accelerate the exhaust fume velocity in kitchen like this, but not only improved the energy consumption of petticoat pipe like this, the corresponding improvement of pressure inside the public flue moreover leads to the cigarette aggravation that leaks, and the kitchen that does not open the petticoat pipe is shone cigarette more seriously. It can be seen that the fact that the smoke cross in the kitchen cannot be changed by improving the performance of the smoke hood, and even the better the performance of the smoke hood, the more serious the problem of smoke cross in the kitchen.
Based on the method and the device, the invention provides a centralized smoke exhaust control method and a centralized smoke exhaust control device for a house, which are used for avoiding the occurrence of smoke crosstalk phenomenon by changing the pressure condition of a common flue, avoiding the oil smoke from being crosstalk to a kitchen, improving the air quality of the kitchen and improving the smoke exhaust efficiency of a smoke hood.
Example one
Referring to fig. 2, the centralized smoke exhaust system of this embodiment includes a common flue 21, each floor is provided with a connecting pipe 22 connected to the common flue 21, and each floor kitchen is provided with a smoke hood 23 connected to the connecting pipe 22; also included are a fan 24, a controller 25 and an air control valve 26. The fan 24 is arranged at the air outlet of the common flue 21 (or in the common flue), and each connecting pipe 22 is provided with an air quantity control valve 26; the controller 25 is respectively connected with the fan 24 and each air volume control valve 26; wherein, the air volume control valve is connected with the smoke hood; the method of the present embodiment is applied to a controller.
Specifically, the connection pipe realizes the connection of the common flue and the smoke hood, and the air volume control valve realizes different air volume adjustment by adjusting the resistance of the air volume control valve; the air volume control valve is arranged at the air inlet of each floor of the public flue (namely at the connecting end of the connecting pipe and the public flue), and can also be arranged in the connecting pipe or at the connecting end of the connecting pipe and the smoke hood.
Preferably, the smoke hood of the embodiment is not provided with a fan, and can be provided with a control panel, and the control panel is used for receiving a smoke exhaust instruction of a user. The oil smoke in the kitchen is collected through the smoke hood and enters the public flue after passing through the air volume control valve.
Fig. 3 is a system schematic diagram of the centralized smoke exhaust system in the embodiment, and the controller 25 is respectively connected with the fan 24 and the air volume control valve 26 of each floor, and the air volume control valve 26 and the smoke hood control panel 27 at the same floor. The smoke hood control panel 27 sends an opening signal to the air volume control valve 26 after receiving the smoke exhaust instruction, and the air volume control valve 26 is opened according to the opening signal.
The connection mode between each air volume control valve and the controller can be wired connection or wireless connection, and the connection mode between each air volume control valve and the corresponding smoke hood control panel can be wired connection or wireless connection.
Referring to fig. 1, the method of the present embodiment includes the steps of:
s110, when the opening and closing state of at least one air volume control valve is changed, acquiring a first state signal sent by the air volume control valve with the changed opening and closing state; the first state signal comprises opening state information and closing state information of the air volume control valve.
Specifically, the on-off state refers to an on state or an off state. The air volume control valve is connected with a control panel of the smoke hood, and when a user operates the control panel and opens the smoke hood, the air volume control valve connected with the smoke hood is opened and sends an opening state signal to the controller. Namely, when the opening and closing state of the smoke hood is changed, the opening and closing state of the air volume control valve connected with the smoke hood is correspondingly changed.
Preferably, in this embodiment, each connecting pipe is correspondingly provided with one air volume control valve, when the air volume control valve is in a closed state, the air volume control valve should have high air tightness (i.e., the air volume control valve does not leak air, and the air volume is zero), and when the air volume control valve is closed, a negative pressure is formed between the closed air volume control valve and the common flue under the action of the fan; thereby the condition that the oil smoke back-streams to the kitchen can not appear under the negative pressure condition. In a possible embodiment, when a plurality of air volume control valves are provided for each connection pipe, these air volume control valves should also have high airtightness, thereby ensuring a long-term negative pressure state from the common flue to the connection pipe.
Preferably, the first state signal further includes position information of the air volume control valve whose opening and closing state is changed, and the position information may be floor information.
And S120, adjusting the working parameters of the fan according to the first state signal sent by each air volume control valve so as to keep the negative pressure state of the common flue.
Specifically, after the controller acquires the first state signal, the controller determines working parameters of the fan when the current public flue keeps the current negative pressure, and ensures that the public flue keeps the negative pressure state for a long time by adjusting the working parameters of the fan, namely adjusting the air draft of the fan in unit time.
In the embodiment, the air volume adjusting valve is arranged on the connecting pipe, and the air volume adjusting valve in a closed state keeps high air tightness, so that the air volume adjusting valve generates a relatively closed space, and the fan draws air in the relatively closed space; and meanwhile, the working parameters of the fan are adjusted, so that under the action of the adjusted fan, the pressure of the relatively closed space is lower than the standard atmospheric pressure, and the public flue is always kept in a negative pressure state. Therefore, the smoke of the kitchen is fundamentally stopped, the air quality of the kitchen is effectively improved, the smoke exhaust efficiency is improved, and the user experience is greatly improved.
Optionally, the operating parameter in the foregoing embodiment is an operating frequency, and the step S120 in the foregoing embodiment includes the following steps:
determining the number of the air volume control valves in the opening state at present according to the first state signal sent by each air volume control valve;
determining the working frequency of the fan according to the number of the air volume control valves in the opening state at present and the following formula:
f＝fstarting point+Δf×n， (1)；
(1) In the formula, f is the working frequency of the fan; f. ofStarting pointThe starting frequency of the fan during initial work is set; delta f is the incremental frequency of the fan when each air volume control valve is started; n is the number of the air volume control valves in the opening state at present, and n is a natural number.
Specifically, because negative pressure needs to be generated in the public flue, the air draft of the fan in unit time needs to be adjusted, that is, the working frequency of the fan needs to be adjusted, so that the public flue can be ensured to be kept in a negative pressure state for a long time. The controller of this embodiment has the frequency conversion control function, can realize the frequency conversion control of fan.
fStarting pointAnd the delta f is a preset value obtained through experiments, when n air volume control valves are opened (namely n gas hoods work), the working frequency of the fan is calculated through the formula (1), and the fan is controlled to perform air extraction at the working frequency, so that the negative pressure value of the public flue is kept in a stable state.
It should be further noted that when a smoke hood is opened in a kitchen at present, the controller controls the fan to increase the working frequency, and the negative pressure in the public flue is increased. When there is the kitchen to close the petticoat pipe at present, the controller control fan reduces operating frequency, and negative pressure reduces in the public flue. When no kitchen need discharge fume at present, the controller control fan stops convulsions.
In this embodiment, the system load mainly depends on the number of kitchens in a smoke exhaust state, the initial frequency can ensure the basic air volume, and the incremental frequency is increased every time a user needs to exhaust smoke, so that the overall performance and the demand of the system can be well matched, the maximum efficiency can be utilized, and the noise can be reduced as a whole. Therefore, the working efficiency of the controller can be improved, and the energy consumption and the noise can be reduced.
Optionally, the method of the above embodiment further includes the following steps:
determining a second state signal corresponding to each air volume control valve in the opening state according to the relative position between the air volume control valves in the opening state at present and the corresponding relation between the resistance of the air volume control valve and the working state which is determined in advance; the second state signal is a signal related to the opening degree of the air volume control valve;
and sending a corresponding second state signal to each air volume control valve in the opening state at present so that each air volume control valve in the opening state at present adjusts the working state according to the corresponding second state signal.
Specifically, because the fan is usually arranged at the top floor, the kitchen smoke exhaust effect of the high floor is better, and the air volume of the household of the low floor is lower than that of the household of the high floor, so that the problems of smaller pressure difference with the standard atmospheric pressure and unsatisfactory smoke exhaust effect exist; therefore, the air volume of the kitchen of the low floor is basically consistent with that of the kitchen of the high floor by adjusting the working state of the air volume control valve.
The air volume regulating valve regulates the self resistance through an electric component, and further regulates the self air volume. In order to realize that the air quantities of different floors are basically consistent, the air quantity regulating valves of different floors need to be provided with different resistances, namely, the air quantity regulating valve at the high floor should have larger resistance, and the air quantity regulating valve at the low floor should have smaller resistance.
In this embodiment, the resistance of the air volume control valve is adjusted by adjusting the working state of the air volume control valve, so that the corresponding relationship between the working state of the air volume control valve and the resistance needs to be determined through experiments, then different resistances required by the air volume control valves in the opening states of different floors are determined, and further the working states of the air volume control valves of different floors are calculated. And finally, sending the calculated result to each air volume control valve in an opening state, so that the air volume control valves in the opening states adjust the working state, and the aim that the air volume control valves in different floors have basically consistent air volume is fulfilled.
Optionally, the method of the above embodiment further includes the following step after step S110:
and sending the first state signal to the air volume control valves of other floors.
Specifically, in order to be able to adjust the working states of the fan and the air control valves of other floors in time when the range hood is opened or closed, it is also necessary to send the first state signal to the air volume control valves of other floors. Therefore, the present embodiment sends the opening state signal or the closing state signal of the air volume control valve to all the air volume control valves currently in the opening state through the controller.
The connection mode between the air volume control valve of each floor and the controller can be wired connection or wireless connection, and the connection mode between the air volume control valve of each floor and the smoke hood control panel corresponding to the floor can be wired connection or wireless connection. The wired connection mode can ensure the stability of signal transmission and is not easily interfered by external signals or environment. And the wireless connection mode is not easily interfered by high-temperature oil smoke and is convenient to install.
Optionally, the determining, according to the relative position between the air volume control valves currently in the open state and the predetermined corresponding relationship between the resistance of the air volume control valve and the working state, the second state signal corresponding to each air volume control valve currently in the open state in the method of the above embodiment includes the following steps:
sequencing each air volume control valve in an opening state from low to high according to the floor where the air volume control valve is located so as to determine the sequence between the air volume control valves in the opening state at present;
determining a second state signal S-S (P) corresponding to each air volume control valve currently in an opening statei) (ii) a Wherein, PiIs the resistance of the ith air volume control valve which is currently in an open state, S is a second state signal, S (P)i) For resistance Pi and work of air volume control valveThe corresponding relation of the state S; and determining P according toi：
Pi＝PStarting point+ΔP×(i-1)； (2)；
(2) Wherein i is the sequence number of the air volume control valve in the opening state at present, and i is 1, 2, 3 … …; pStarting pointThe initial resistance of the air volume control valve; and delta P is the incremental resistance of the fan when each air quantity control valve is started.
Specifically, after determining which air volume control valves are in the open state, the air volume control valves in the open state are numbered from bottom to top from the low floor, and the initial value of the number i is 1. For example, if the air volume control valves of the 3 rd, 5 th, 10 th, and 12 th floors are in the open state, the air volume control valve of the 3 rd floor is numbered 1, the air volume control valve of the 5 th floor is numbered 2, the air volume control valve of the 10 th floor is numbered 3, and the air volume control valve of the 12 th floor is numbered 4, that is, i is 1, 2, 3, and 4.
Substituting the value i into a formula (2) to obtain Pi values corresponding to the air volume control valves of the 3 th, 5 th, 10 th and 12 th buildings; then according to S ═ S (P)i) And determining a second state signal S corresponding to each floor. And then, sending the S value corresponding to each floor to the air volume control valve.
When the first kitchen opens the smoke hood, the air volume control valve is opened, and the corresponding working state is S (P)Starting point)；
When smoke hoods are opened in n local kitchens, sequencing all opened air volume control valves according to floors to obtain i values, and calculating S values corresponding to the air volume control valves of all the floors according to the formula (2); and after the S value of each floor is sent to the air volume control valve of each floor, the air volume control valve adjusts the working state according to the corresponding S value.
Optionally, the air volume control valve in the above embodiment is an electric valve; the second state signal is one of an angle of the air volume control valve, a time required to open the air volume control valve, or a stroke of the air volume control valve when the air volume control valve is opened.
Specifically, the air volume control valve usually adjusts different air volumes by controlling the valve to reach different opening degrees; the control of the valve opening degree can be controlled by parameters such as angle, opening time, stroke (namely distance) during opening and the like. Some of the air volume control valves realize air volume adjustment by adjusting the angle of the valve, some of them control the volume of ventilation air by controlling the opening time (e.g., the time required for the valve to open from 0 degrees to 50 degrees), and some of them control the volume of ventilation air by the stroke during opening (i.e., the distance from the valve to the target angle); therefore, the airflow control valves have different adjustment parameters and different second state signals.
The working process of the embodiment can be as follows:
when a first kitchen smoke hood on a first floor receives a smoke exhaust instruction input by a user, a smoke hood control panel on the floor sends a signal to an air volume control valve on the floor, and the floor air volume control valve is opened to a working state S (P) Si) And sending the first state signal to the controller, and sending the first state signal to the air volume control valves of other floors by the controller; the controller controls the fan to work at the frequency f ═ fStarting pointAnd + delta f, negative pressure is formed in the common flue, and the oil smoke is exhausted to the outside of the roof through the smoke hood, the connecting pipe, the air volume control valve and the common flue.
When the second kitchen smoke hood on the second floor receives a smoke exhaust instruction input by a user, the smoke hood control panel on the floor sends a signal to the air volume control valve on the floor, and the floor air volume control valve is opened to a working state S (P) Si+ delta P) and sending the first state signal to the controller, and sending the first state signal to the air volume control valves of other floors by the controller; the controller controls the fan to adjust the working frequency f to fStarting point+2 delta f, the negative pressure of the common flue is enhanced, and the oil smoke is exhausted to the outside of the roof through the smoke hood, the connecting pipe, the air volume control valve and the common flue.
When the mth kitchen smoke hood on the mth floor receives a smoke exhaust stopping instruction input by a user, the smoke hood control panel on the mth floor sends a signal to the air volume control valve on the mth floor, the air volume control valve on the mth floor is closed, a first state signal is sent to the controller, and the controller sends the first state signal to the air volume control valves on other floors; the controller controls the fan to adjust to a set working frequency (the working frequency is reduced), the negative pressure of the common flue is reduced, and the oil smoke is exhausted to the outside of the roof through the smoke hood, the connecting pipe, the air volume control valve and the common flue.
Referring to fig. 4, in a specific implementation, the control flow of the controller may include the following steps:
step S210, working state;
step S220, judging whether a smoke exhaust command is received by a control panel of the range hood, if so, turning to step S230, otherwise, continuing to execute the step;
step S230, receiving a first control signal sent by the just opened air volume control valve;
step S240, adjusting the fan operating frequency to f ═ fStarting point+Δf×n；
Step S250, sequencing each air volume control valve in an opening state from low to high according to the floor where the air volume control valve is located;
step S260, sending the corresponding sequence number to the air volume control valve in the opening state at present;
step S270, sending a second state signal S ═ S (P) to the air volume control valve currently in the open statei)。
The embodiment changes the pressure condition of the whole flue system during smoke discharge, stops the occurrence of smoke cross in principle and greatly improves the kitchen control quality.
Referring to fig. 5, the centralized smoke exhaust control device for a residence provided by the embodiment of the present invention is applied to a controller in a centralized smoke exhaust system, the centralized smoke exhaust system includes a common flue, a connecting pipe for each floor, a smoke hood for each floor kitchen, a fan installed at an air outlet of the common flue, a controller, and an air volume control valve, the connecting pipe for each floor is respectively connected with the common flue and the smoke hood for each floor kitchen, and each connecting pipe is installed with the air volume control valve; the controller is respectively connected with the fan and each air volume control valve; the air volume control valve is connected with the smoke hood and realizes different air volume adjustment by adjusting the resistance of the air volume control valve; the device of the embodiment comprises the following modules:
the acquiring module 51 is configured to acquire a first state signal sent by the air volume control valve with a changed opening/closing state when the opening/closing state of at least one air volume control valve is changed; when the opening and closing state of the smoke hood is changed, the opening and closing state of an air volume control valve connected with the smoke hood is correspondingly changed; the first state signal at least comprises opening state information and closing state information of the air volume control valve;
and the adjusting module 52 is configured to adjust working parameters of the fan according to the first state signal sent by each air volume control valve, so that the common flue maintains a negative pressure state.
Optionally, the operating parameter in the apparatus according to the embodiment is an operating frequency, and the adjusting module 52 in the apparatus according to the embodiment includes the following modules:
the quantity determining module is used for determining the quantity of the air volume control valves in the opening state at present according to the first state signals sent by each air volume control valve;
the frequency determination module is used for determining the working frequency of the fan according to the number of the air volume control valves in the opening state at present and the following formula:
f＝fstarting point+Δf×n；
In the above formula, f is the working frequency of the fan; f. ofStarting pointThe starting frequency of the fan during initial work is set; delta f is the incremental frequency of the fan when each air volume control valve is started; n is the number of the air volume control valves in the opening state at present, and n is a natural number.
Optionally, the apparatus of the above embodiment further includes the following modules:
the working state determining module is used for determining a second state signal corresponding to each air volume control valve in the opening state according to the relative position between the air volume control valves in the opening state at present and the corresponding relation between the resistance of the air volume control valve and the working state which is determined in advance; the second state signal is a signal related to the opening degree of the air volume control valve;
and the working state adjusting module is used for sending corresponding second state signals to each air volume control valve in the opening state at present so as to enable each air volume control valve in the opening state at present to adjust the working state according to the corresponding second state signals.
Optionally, the apparatus of the above embodiment further includes the following modules:
and the sending module is used for sending the first state signal to the air volume control valves of other floors.
Optionally, the operating state determining module in the apparatus of the above embodiment includes the following modules:
the sequencing module is used for sequencing each air volume control valve in an opening state from low to high according to the floor where the air volume control valve is located so as to determine the sequence among the air volume control valves in the opening state at present;
a calculating module for determining a second state signal S ═ S (P) corresponding to each air volume control valve currently in an opening statei) (ii) a Wherein, PiIs the resistance of the ith air volume control valve which is currently in an open state, S is a second state signal, S (P)i) The resistance Pi of the air volume control valve is a corresponding relation formula with the working state S; and determining P according toi：
Pi＝PStarting point+ΔP×(i-1)；
In the above formula, i is the sequence number of the air volume control valve currently in the open state, and i is 1, 2, 3 … …; pStarting pointThe initial resistance of the air volume control valve; and delta P is the incremental resistance of the fan when each air quantity control valve is started.
Optionally, the air volume control valve in the device of the above embodiment is an electric valve; the second state signal in the apparatus of the above embodiment is one of the angle of the air volume control valve, the time required to open the air volume control valve, or the stroke when the air volume control valve is opened.
Referring to fig. 6, an embodiment of the present invention further provides an electronic device 400, which includes a communication interface 401, a processor 402, a memory 403, and a bus 404, where the processor 402, the communication interface 401, and the memory 403 are connected by the bus 404; the memory 403 is used for storing a computer program that supports the processor 402 to execute the residential centralized smoke evacuation control method, and the processor 402 is configured to execute the program stored in the memory 403.
Optionally, an embodiment of the present invention further provides a computer readable medium having a non-volatile program code executable by a processor, where the program code causes the processor to execute the residential centralized smoke exhaust control method in the above embodiment.
Example two
The embodiment provides a centralized smoke exhaust control method for a house, which is applied to an air volume control valve in a centralized smoke exhaust system, wherein the centralized smoke exhaust system comprises a public flue, connecting pipes of all floors, smoke hoods of kitchens of all floors, fans installed at air outlets of the public flue, a controller and an air volume control valve, the connecting pipes of all floors are respectively connected with the public flue and the smoke hoods of the kitchens of all floors, and each connecting pipe is provided with the air volume control valve; the controller is respectively connected with the fan and each air volume control valve, and the air volume control valves of all floors are connected with each other; the air volume control valve is connected with the smoke hood, and the air volume control valve realizes different air volume adjustment by adjusting the resistance of the air volume control valve.
Specifically, referring to fig. 8, unlike the centralized smoke exhaust system in the first embodiment, the air volume control valves of each floor in the present embodiment are connected by wire or wirelessly. Preferably, the controller and the air volume control valves of each floor are provided with wireless communication antennas, and the controller and the air volume control valves of each floor are also connected in a wireless communication mode.
Referring to fig. 7, the method of the present embodiment includes the steps of:
step S310, when the opening and closing state is changed, a first state signal is sent to a controller, so that the controller adjusts the working parameters of the fan according to the first state signal, and the public flue is kept in a negative pressure state; wherein the first state signal at least comprises opening state information and closing state information of the air volume control valve.
Optionally, referring to fig. 7, the method of the above embodiment further includes the following steps:
step S320, receiving a first state signal sent by the air volume control valve with the changed opening and closing state;
step S330, determining a corresponding second state signal according to the relative position between the air volume control valves in the opening state at present and the corresponding relation between the resistance of the air volume control valves and the working state which is predetermined; the second state signal is a signal related to the opening degree of the air volume control valve;
and step S340, adjusting the working state according to the second state signal.
Specifically, the present embodiment is different from the first embodiment in that when the smoke hood of a certain floor receives a smoke exhaust instruction, the air volume control valve of the floor sends the first state signal to the air volume control valves of other floors in the open state in a wireless communication manner. In this way, the air volume control valves of the respective floors each calculate the second state signal by the same principle as in the above-described embodiment, and each adjust the operating state based on the calculated second state signal.
This embodiment can effectively guarantee that each control signal effectively conveys the air volume control valve to each floor, ensures that the air volume control valve of each floor in time makes operating condition's adjustment.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The centralized smoke exhaust control method for the house is characterized by being applied to a controller in a centralized smoke exhaust system, wherein the centralized smoke exhaust system comprises a public flue, connecting pipes of all floors, smoke hoods of kitchens of all floors, a fan arranged on the public flue, the controller and an air volume control valve, the connecting pipes of all floors are respectively connected with the public flue and the smoke hoods of the kitchens of all floors, and the air volume control valve is arranged on each connecting pipe; the controller is respectively connected with the fan and each air volume control valve; the air volume control valve is connected with the smoke hood; the method comprises the following steps:
when the opening and closing state of at least one air volume control valve is changed, acquiring a first state signal sent by the air volume control valve with the changed opening and closing state; the first state signal at least comprises opening state information and closing state information of the air volume control valve;
and adjusting working parameters of the fan according to the first state signal sent by each air volume control valve so as to keep the common flue in a negative pressure state.
2. The method of claim 1, wherein the operating parameter is an operating frequency, and adjusting the operating parameter of the fan according to the first status signal sent by each of the air volume control valves to maintain the negative pressure state in the common flue comprises:
determining the number of the air volume control valves in the opening state at present according to the first state signal sent by each air volume control valve;
determining the working frequency of the fan according to the number of the air volume control valves in the opening state at present and the following formula:
f＝fstarting point+Δf×n，
In the above formula, f is the working frequency of the fan; f. ofStarting pointThe starting frequency of the fan in initial work is set; Δ f is the incremental frequency of the fan when each air volume control valve is started; n is the number of the air volume control valves in the opening state at present, and n is a natural number.
3. The method of claim 2, further comprising:
determining a second state signal corresponding to each air volume control valve in the opening state according to the relative position between the air volume control valves in the opening state at present and the corresponding relation between the resistance of the air volume control valve and the working state which is determined in advance; the second state signal is a signal related to the opening degree of the air volume control valve;
and sending a corresponding second state signal to each air volume control valve in the opening state at present so that each air volume control valve in the opening state at present adjusts the working state according to the corresponding second state signal.
4. The control method according to claim 1, wherein when the open/close state of at least one of the air volume control valves is changed, the step of obtaining the first state signal sent by the air volume control valve with the changed open/close state further comprises:
and sending the first state signal to the air volume control valves of other floors.
5. The control method according to claim 3, wherein determining the second state signal corresponding to each air volume control valve currently in the open state according to the relative position between the air volume control valves currently in the open state and the predetermined correspondence between the resistance of the air volume control valve and the operating state comprises:
sequencing each air volume control valve in an opening state from low to high according to the floor where the air volume control valve is located so as to determine the sequence between the air volume control valves in the opening state at present;
determining a second state signal S-S (P) corresponding to each air volume control valve currently in an opening statei) (ii) a Wherein, PiIs the resistance of the ith air volume control valve which is currently in an open state, S is a second state signal, S (P)i) The resistance Pi of the air volume control valve is a corresponding relation formula with the working state S; and determining P according toi：
Pi＝PStarting point+ΔP×(i-1)；
In the above formula, i is the sequence number of the air volume control valve currently in the open state, and i is 1, 2, 3 … …; pStarting pointThe initial resistance of the air volume control valve; and delta P is the incremental resistance of the fan when each air quantity control valve is started.
6. The control method according to claim 5, wherein the air volume control valve is an electric valve; the second state signal is one of an angle of the air volume control valve, a time required for opening the air volume control valve, or a stroke of the air volume control valve when the air volume control valve is opened.
7. A centralized smoke exhaust control method for a house is characterized by being applied to an air volume control valve in a centralized smoke exhaust system, wherein the centralized smoke exhaust system comprises a common flue, connecting pipes of all floors, smoke hoods of kitchens of all floors, a fan, a controller and an air volume control valve, the connecting pipes of all floors are respectively connected with the common flue and the smoke hoods of the kitchens of all floors, and the air volume control valve is arranged on each connecting pipe; the controller is respectively connected with the fan and each air volume control valve, and the air volume control valves of all floors are connected with each other; the air volume control valve is connected with the smoke hood; the method comprises the following steps:
when the opening and closing state is changed, a first state signal is sent to a controller, so that the controller adjusts the working parameters of the fan according to the first state signal, and the public flue is kept in a negative pressure state; wherein the first state signal at least comprises opening state information and closing state information of the air volume control valve.
8. The method of claim 7, further comprising:
receiving a first state signal sent by an air volume control valve with a changed opening and closing state;
determining a corresponding second state signal according to the relative position between the air volume control valves in the opening state at present and the corresponding relation between the resistance of the air volume control valves and the working state which is predetermined; the second state signal is a signal related to the opening degree of the air volume control valve;
and adjusting the working state according to the second state signal.
9. The centralized smoke exhaust control device for the house is characterized by being applied to a controller in a centralized smoke exhaust system, wherein the centralized smoke exhaust system comprises a public flue, connecting pipes of all floors, smoke hoods of kitchens of all floors, a fan arranged on the public flue, a controller and an air volume control valve, the connecting pipes of all floors are respectively connected with the public flue and the smoke hoods of the kitchens of all floors, and the air volume control valve is arranged on each connecting pipe; the controller is respectively connected with the fan and each air volume control valve; the air volume control valve is connected with the smoke hood; the device comprises:
the acquisition module is used for acquiring a first state signal sent by the air volume control valve with the changed opening and closing state when the opening and closing state of at least one air volume control valve is changed; when the opening and closing state of the smoke hood is changed, the opening and closing state of the air volume control valve connected with the smoke hood is correspondingly changed; the first state signal at least comprises opening state information and closing state information of the air volume control valve;
and the adjusting module is used for adjusting the working parameters of the fan according to the first state signals sent by each air volume control valve so as to enable the common flue to keep a negative pressure state.
10. A computer-readable medium having non-volatile program code executable by a processor, wherein the program code causes the processor to perform the method of any of claims 1 to 8.
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| CN202111314452.3A CN113883571A (en) | 2021-11-08 | 2021-11-08 | Residence centralized smoke exhaust control method and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114623478A (en) * | 2022-03-21 | 2022-06-14 | 杭州老板电器股份有限公司 | Debugging error correction method and device, oil fume suction equipment and readable storage medium |
| CN114811793A (en) * | 2022-04-18 | 2022-07-29 | 杭州老板电器股份有限公司 | Central exhaust system and control method |
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2021
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114623478A (en) * | 2022-03-21 | 2022-06-14 | 杭州老板电器股份有限公司 | Debugging error correction method and device, oil fume suction equipment and readable storage medium |
| CN114811793A (en) * | 2022-04-18 | 2022-07-29 | 杭州老板电器股份有限公司 | Central exhaust system and control method |
| CN114811793B (en) * | 2022-04-18 | 2023-12-15 | 杭州老板电器股份有限公司 | Central exhaust system and control method |
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