CN112178719A - Central flue system and air flow control method - Google Patents
Central flue system and air flow control method Download PDFInfo
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- CN112178719A CN112178719A CN202010991543.XA CN202010991543A CN112178719A CN 112178719 A CN112178719 A CN 112178719A CN 202010991543 A CN202010991543 A CN 202010991543A CN 112178719 A CN112178719 A CN 112178719A
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000000779 smoke Substances 0.000 claims abstract description 73
- 230000006854 communication Effects 0.000 claims abstract description 63
- 238000004891 communication Methods 0.000 claims abstract description 45
- 230000008569 process Effects 0.000 claims description 14
- 235000019504 cigarettes Nutrition 0.000 claims description 9
- 241000208125 Nicotiana Species 0.000 claims 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 238000000746 purification 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention belongs to the technical field of central flue systems, and particularly relates to a central flue system and a wind control method. The air volume control method comprises the following steps: the indoor smoke machine of each floor acquires a current air volume threshold value A transmitted to the floor, wherein the current air volume threshold value A is transmitted layer by layer between the floors; if the actual air quantity Q of the indoor range hood is still smaller than the current air quantity threshold A when the rotating speed of a fan of the indoor range hood reaches the maximum, judging whether the current air quantity threshold A is the air quantity threshold A in the last communication process; if yes, the indoor smoke machine sends a smaller air volume threshold value A to the communication network so as to update the current air volume threshold value A in the communication network; if not, the indoor smoke machine continuously acquires the current air volume threshold value A transmitted to the floor. The invention can effectively solve the problem that the air quantity of the indoor smoke machine of each floor is not uniformly matched in the existing central flue system.
Description
Technical Field
The invention belongs to the technical field of central flue systems, and particularly relates to a central flue system and a wind control method.
Background
At present, most of high-rise houses adopt an indoor range hood, a smoke pipe, a check valve and a public flue to be connected, so that oil smoke in a kitchen is discharged into the public flue through the smoke pipe through the indoor powered range hood. However, the cooking habit of the big oil smoke of Chinese people and the current situation of the big air volume and the big air pressure of the existing range hood cause the pressure distribution in the public flue to be extremely uneven, and the problem of unsmooth smoke discharge exists. In addition, in order to make the indoor range hood generate large air volume and air pressure, the noise generated by the range hood is large. The oil smoke and noise in the kitchen have a negative impact on the health of the user.
At present, in order to solve the problems of unsmooth smoke discharge and high noise of the existing range hood, a concept of a central purification system is developed in recent years. The outdoor fan arranged at the top end of the public flue generates power, and the flow of each floor is uniformly distributed by matching with the adjustment of the check valve plate connected with the public flue, so that the aims of smooth smoke discharge and low-noise use scenes are fulfilled. However, in this way, to achieve uniform flow distribution of each floor, an adjustment algorithm of the valve plate angle is complex, because the influence of factors such as the start-up rate, the start-up position, the flue structure size, and the like is considered. Particularly, in a communication network in a flue, the communication network includes information about the startup information and the related influence factors of each layer, which inevitably causes a great amount of transmitted information, thereby affecting the communication speed and stability.
Aiming at application scenes that floors are not high, flues are large in size or smoke exhaust machines are good in performance, smoke exhaust through a traditional range hood basically does not have any problem, and roof wind is additionally arranged to cause waste on resources. Therefore, for the application scene without the roof fan, the problem that how to solve the problem of uneven air volume matching of the smoke machine in each floor is the problem to be solved by the invention.
Disclosure of Invention
The invention provides an air volume control method of a central flue system, aiming at solving the problem that the air volume of indoor smoke blowers on each floor is not uniformly matched in the conventional central flue system.
The invention also provides a central flue system.
The invention is realized by adopting the following scheme: a method for controlling air volume of a central flue system comprises the following steps:
the indoor smoke machine of each floor acquires a current air volume threshold value A transmitted to the floor, wherein the current air volume threshold value A is transmitted layer by layer between the floors;
if the actual air quantity Q of the indoor range hood is still smaller than the current air quantity threshold A when the rotating speed of a fan of the indoor range hood reaches the maximum, judging whether the current air quantity threshold A is the air quantity threshold A in the last communication process;
if yes, the indoor smoke machine sends a smaller air volume threshold value A to the communication network so as to update the current air volume threshold value A in the communication network; if not, the indoor smoke machine continuously acquires the current air volume threshold value A transmitted to the floor.
The air volume control method of the central flue system is further improved in that the current air volume threshold value A is transmitted layer by layer between floors, and specifically comprises the following steps:
the current air volume threshold value A is orderly transmitted layer by layer from a high floor to a low floor in a fixed period.
The air volume control method of the central flue system is further improved in that the current air volume threshold value A is transmitted layer by layer between floors, and specifically comprises the following steps:
the current air volume threshold value A is orderly transmitted layer by layer from a low floor to a high floor in a fixed period.
The air quantity control method of the central flue system is further improved in that the method also comprises the following steps in the control process:
judging whether the indoor range hood is changed from the running state to the shutdown state or not;
if not, the indoor smoke machine of each floor acquires the current air volume threshold value A transmitted to the floor;
if yes, the shut-down indoor smoke machine sends a default air volume threshold value A' to the communication network so as to update the current air volume threshold value A; the indoor smoke machine of each floor acquires the current air volume threshold value A transmitted to the floor.
The air volume control method of the central flue system is further improved in that before judging whether the current air volume threshold A is the air volume threshold A in the last communication process, the method specifically comprises the following steps:
judging whether the actual air quantity Q of the indoor range hood is equal to the current air quantity threshold value A or not;
if the current air volume threshold value A is equal to the current air volume threshold value A, the indoor smoke machine continuously acquires the current air volume threshold value A transmitted to the floor;
if the actual air volume Q of the indoor range hood is larger than the current air volume threshold value A, reducing the rotating speed of the fan by the indoor range hood, and judging whether the actual air volume Q of the indoor range hood is equal to the current air volume threshold value A or not;
if the rotating speed of the fan is less than the maximum value, judging whether the rotating speed of the fan of the indoor smoke machine reaches the maximum value; if not, increasing the rotating speed of the fan by the indoor range hood, and judging whether the actual air quantity Q of the indoor range hood is equal to the current air quantity threshold value A or not; and if so, judging whether the current air volume threshold A is the air volume threshold A in the last communication process.
The invention also provides a central flue system which comprises indoor smoke exhaust machines arranged on different floors, roof hoods and an electric power storage module;
the roof hood is arranged at an air outlet of the public flue; the indoor range hood also comprises a communication module; the power storage module is connected with the communication module and used for supplying power to the communication module; and the indoor cigarette machines are in communication connection through the communication modules.
The central flue system of the invention is further improved in that the indoor smoke machine further comprises a smoke tube; one end of the smoke pipe is communicated with a smoke outlet of the indoor fan, and the other end of the smoke pipe is communicated with the public flue.
Compared with the prior art, the invention adopting the scheme has the beneficial effects that:
in the invention, indoor smoke machines of all floors acquire a current air volume threshold value A transmitted to the floor, wherein the current air volume threshold value A is transmitted layer by layer between the floors; when the rotating speed of the fan of the indoor range hood reaches the maximum, the actual air quantity Q of the indoor range hood is still smaller than the current air quantity threshold value A, which indicates that the actual air quantity cannot be smaller than the current air quantity threshold value A only by adjusting the rotating speed of the fan of the indoor range hood at the moment, so that the current air quantity threshold value A needs to be reduced at the moment; considering that an adaptation process is needed for each floor of indoor range hood for reducing the air volume threshold A each time, whether the current air volume threshold A is the air volume threshold A in the last communication process is judged; if yes, the indoor smoke machine sends a smaller air volume threshold value A to the communication network so as to update the current air volume threshold value A in the communication network; if not, the indoor smoke machine of each floor acquires the current air volume threshold value A transmitted to the floor again, so that the problem that the air volume of the indoor smoke machine of each floor is not uniformly matched in the current central flue system is solved.
Because the central flue system adopts the air volume control method, the problem that the air volume of indoor smoke blowers on each floor is not uniformly matched in the conventional central flue system can be at least effectively solved.
Drawings
FIG. 1 is a system block diagram of a central flue system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a central flue system according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a process of transmitting a current air volume threshold value a between floors in an air volume control method of a central flue system according to an embodiment of the present invention;
FIG. 4 is a first flowchart of a method for controlling an air volume of a central flue system according to an embodiment of the present invention;
FIG. 5 is a second flowchart of a method for controlling an air volume of a central flue system according to an embodiment of the present invention;
fig. 6 is a third flowchart of an air volume control method of a central flue system according to an embodiment of the present invention.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
Example 1
As shown in fig. 4, the present embodiment provides an air volume control method for a central flue system, including the following steps:
s1, acquiring a current air volume threshold value A transmitted to the floor by the indoor smoke machine of each floor, wherein the current air volume threshold value A is transmitted layer by layer between each floor;
s2, when the rotating speed of a fan of the indoor range hood reaches the maximum, the actual air quantity Q of the indoor range hood is still smaller than the current air quantity threshold value A;
judging whether the current air volume threshold A is the air volume threshold A in the last communication process;
if yes, the indoor smoke machine sends a smaller air volume threshold value A to the communication network so as to update the current air volume threshold value A in the communication network; if not, the process returns to S1.
In this embodiment, the indoor smoke machine of each floor acquires the current air volume threshold value a transmitted to the floor, wherein the current air volume threshold value a is transmitted layer by layer between the floors; when the rotating speed of the fan of the indoor range hood reaches the maximum, the actual air quantity Q of the indoor range hood is still smaller than the current air quantity threshold value A, which indicates that the actual air quantity cannot be smaller than the current air quantity threshold value A only by adjusting the rotating speed of the fan of the indoor range hood at the moment, so that the current air quantity threshold value A needs to be reduced at the moment; considering that an adaptation process is needed for each floor of indoor range hood for reducing the air volume threshold A each time, whether the current air volume threshold A is the air volume threshold A in the last communication process is judged; if yes, the indoor smoke machine sends a smaller air volume threshold value A to the communication network so as to update the current air volume threshold value A in the communication network; if not, the flow returns to S1, thus solving the problem that the air quantity of the indoor smoke machine of each floor is not uniformly matched in the current central flue system.
In addition, "judge whether current air volume threshold a is the air volume threshold a in the last communication process", namely judge whether current air volume threshold a changes than the air volume threshold in the last communication process, if change, do not adjust the current air volume threshold in the communication process this time; if the change occurs, the current air volume threshold value in the communication process is adjusted, so that the air volume threshold value is only changed once in the process of transmitting the primary air volume threshold value A, and the aim of giving a response time to the indoor range hood is fulfilled. If the air volume threshold value is adjusted at high frequency, the operating indoor smoke machine may not react in time, and further the air volume cannot be adjusted accurately.
Further, the current air volume threshold value a is transmitted layer by layer between each floor, and specifically includes:
the current air volume threshold value A is orderly transmitted layer by layer from a high floor to a low floor in a fixed period.
Further, the current air volume threshold value a is transmitted layer by layer between each floor, and specifically includes:
the current air volume threshold value A is orderly transmitted layer by layer from a low floor to a high floor in a fixed period.
Next, taking the example that the current air volume threshold a is sequentially transferred layer by layer from a high floor to a low floor in a fixed period, the transfer process of the current air volume threshold a will be specifically described.
The delivery of the air volume threshold value a needs to be performed sequentially and step by step in a fixed period, preferably from a high floor to a low floor (or from a low floor to a high floor or in a disorder), after the air volume threshold value a is delivered once, the air volume threshold value a is delivered reversely by the end floor, so that each floor is ensured to receive the air volume threshold value signal and inform that the delivery of the initial floor is completed, as shown in fig. 3, after a period of time, the next delivery process is started.
For example: the current air volume threshold value A is firstly transmitted to the N-1 floor from the high floor N, and then transmitted to the low floor layer by layer until the current air volume threshold value A is transmitted to the first floor, so that one-time signal transmission is completed by the air volume threshold value A; then, if the indoor cigarette machine of the first floor sends a smaller air volume threshold value A to the communication network as the current air volume threshold value A, the first floor transfers the current air volume threshold value A to the second floor, and then transfers the current air volume threshold value A to the high floors layer by layer, so that the indoor cigarette machine of each floor can receive the updated air volume threshold value A.
Further, the method further comprises the following steps, as shown in fig. 5:
judging whether the indoor range hood is switched from the running state to the shutdown state or not;
if not, the indoor smoke machine of each floor acquires the current air volume threshold value A transmitted to the floor;
if yes, the shut-down indoor smoke machine sends a default air volume threshold value A' to the communication network so as to update the current air volume threshold value A; the indoor smoke machine of each floor acquires the current air volume threshold value A transmitted to the floor.
In a specific embodiment, if the indoor range hood is shut down, the resistance in the common flue is necessarily changed, so that the indoor range hood which is shut down needs to enter the air volume adjusting state again at this time, namely the closed indoor range hood sends a default air volume threshold value a ' to the communication network to update the current air volume threshold value a, then the default air volume threshold value a ' is transmitted layer by layer between floors, and after other operating indoor range hoods acquire the default air volume threshold value a ', the air volume state is adjusted again.
Further, before determining whether the current air volume threshold a is the air volume threshold a in the last communication process, the following steps are specifically included, as shown in fig. 6:
judging whether the actual air quantity Q of the indoor range hood is equal to the current air quantity threshold value A or not;
if the current air volume threshold value A is equal to the current air volume threshold value A, the indoor smoke machine continuously acquires the current air volume threshold value A transmitted to the floor;
if the actual air volume Q of the indoor range hood is larger than the current air volume threshold value A, reducing the rotating speed of the fan by the indoor range hood, and judging whether the actual air volume Q of the indoor range hood is equal to the current air volume threshold value A or not;
if the rotating speed of the fan is less than the maximum value, judging whether the rotating speed of the fan of the indoor smoke machine reaches the maximum value; if not, increasing the rotating speed of the fan by the indoor range hood, and judging whether the actual air quantity Q of the indoor range hood is equal to the current air quantity threshold value A or not; and if so, judging whether the current air volume threshold A is the air volume threshold A in the last communication process.
In a specific embodiment, an indoor smoke machine firstly adjusts the rotating speed of a fan to enable the actual air quantity Q to approach the current air quantity threshold value A as much as possible; if the actual air volume Q is still smaller than the current air volume threshold a when the fan rotation speed reaches the maximum, it indicates that the purpose that the actual air volume Q is equal to the current air volume threshold a cannot be achieved only by adjusting the fan rotation speed, so at this time, the indoor smoke machine needs to send a smaller air volume threshold a to the communication network to update the current air volume threshold a in the communication network. Considering that the air volume is transmitted layer by layer in the transmission process when meeting A, in order to enable indoor smoke machines on other floors to fully reflect the changed air volume threshold value A, the air volume threshold value A is only reduced once in the layer-by-layer transmission process, namely before the air volume threshold value A is reduced, whether the current air volume threshold value A is the air volume threshold value A in the last communication process is judged firstly, and if yes, the indoor smoke machine sends a smaller air volume threshold value A to the communication network to update the current air volume threshold value A in the communication network; if not, the indoor smoke machine continuously acquires the current air volume threshold value A transmitted to the floor.
The following takes a 7-storey building as an example to specifically describe the air volume adjusting process of the embodiment:
the current transmission process of the air volume threshold value A is as follows: 7 → 6 → 5 → 4 → 3 → 2 → 1, 1 → 2 → 3 → 4 → 5 → 6 → 7;
assuming that the number of the startup households is 1, 3, 5 and 6 layers, and the current air volume threshold value A is 8m3Min, default threshold 14m3And/min. The number of revolutions of each operator is 1400rpm, 1200rpm, 1000rpm, 800rpm, and the actual exhaust air volume is 8m3And min, realizing uniform air exhaust of each floor.
And if the indoor range hood on the 6 th floor is shut down, the indoor range hood on the 6 th floor sends a default air volume threshold value A' to the communication network so as to update the current air volume threshold value A.
At the moment, a signal transmission process (n) is carried out, namely the current air volume threshold value A is firstly transmitted to the indoor cigarette machines on 5 floors, then the indoor cigarette machines on 3 floors and finally the indoor cigarette machines on 1 floor, so that the air volume threshold values are reset on all floors. The number of rotations of 1, 3, 5 layers are allThe speed is increased to 1400rpm (maximum revolution), and the actual air quantity Q is 9m3/min、11m3/min、13m3/min。
After the reset is completed, the next transfer process (n +1) is entered.
In the (n +1) times of transmission process, the first encountered starting floor is 5 floors, and after the air volume judgment, when the revolution is maximum, the air volume still can not meet the current threshold value of 14m3The/min criterion, the decision criterion for the threshold is then lowered by 13m3Min (14-1). Along with the signal transfer process (n +1), the threshold value of each layer becomes 13m3And/min. 1. The number of revolutions of the 3 and 5 layers was 1400rpm (maximum number of revolutions), and the actual air volume was 9m3/min、11m3/min、13m3And/min. For convenience of explanation, the following dispensing process is illustrated by the description of table 1.
TABLE 1 actual air volume change of each floor with increase of transmission times of current air volume threshold A of each floor
It can be known from table 1 that after n +4 times of delivery of the air volume threshold value a is completed, the air volume distribution of each floor of the central flue system is completed, and the actual air volume Q of each floor is equal to the current air volume threshold value a, thereby effectively solving the problem that the air volume of the indoor smoke machine of each floor is not uniformly matched in the current central flue system.
Example 2
As shown in fig. 1 and 2, the present embodiment provides a central flue system including indoor smoke machines 1 installed on different floors, roof hoods 2, and power storage modules 4;
the roof hood 2 is arranged at the air outlet of the public flue 3; the indoor range hood 1 further comprises a communication module 11; the electric power storage module 4 is connected with the communication module 11 and used for supplying power to the communication module 11; the indoor cigarette machines 1 are communicatively connected by the communication modules 11 with each other.
In this embodiment, because the method of embodiment 1 is adopted in the air volume control method of this embodiment, this embodiment can at least solve the problem that the air volume of the indoor air conditioners in each floor is not uniformly matched in the current central flue system.
When the indoor range hood 1 is powered off, the power storage module 4 can continuously supply power to the communication module 11, so that the communication module 11 can continuously send the default air volume threshold value a' to the communication network. Preferably, the power storage module 4 may be a battery.
Further, the indoor smoke machine 1 also comprises a smoke pipe 12; one end of the smoke tube 12 is communicated with the smoke outlet of the indoor fan 1, and the other end is communicated with the common flue 3, so as to discharge indoor oil smoke into the common flue 3.
Based on the central flue system, the air volume control method of embodiment 1 is specifically described, which includes the following steps, as shown in fig. 6:
s11, judging whether the indoor range hood is changed from the running state to the shutdown state or not; if yes, the indoor smoke machine which is shut down sends a default air volume threshold value A '(for example, A' is 14 m) to the communication network3Min) to update the current air volume threshold value A;
s12, the indoor smoke machine 1 of each floor in operation acquires the current air volume threshold value A transmitted to the floor, wherein the current air volume threshold value A is transmitted layer by layer between the floors;
s21, judging whether the actual air quantity Q of the indoor range hood 1 is equal to the current air quantity threshold value A or not; if yes, returning to S12; if not, go to S22;
s22, judging whether the actual air quantity Q of the indoor range hood 1 is larger than the current air quantity threshold value A or not; if yes, the indoor range hood 1 reduces the rotating speed of the fan and returns to S21; if not, go to S23;
s23, judging whether the fan rotating speed of the indoor range hood 1 reaches the maximum value; if not, increasing the rotating speed of the fan by the indoor smoke machine, and returning to S21; if yes, go to S24;
s24, judging whether the current air volume threshold A is the air volume threshold A in the last communication process; if not, returning to S12; if yes, the indoor cigarette machine 1 which does not reach the current air volume threshold value A sends a smaller air volume threshold value A to the communication network so as to update the current air volume threshold value A in the communication network, and the step returns to S12.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the described parent features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
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 (7)
1. A method for controlling air volume of a central flue system is characterized by comprising the following steps:
the indoor smoke machine of each floor acquires a current air volume threshold value A transmitted to the floor, wherein the current air volume threshold value A is transmitted layer by layer between the floors;
if the actual air quantity Q of the indoor range hood is still smaller than the current air quantity threshold A when the rotating speed of a fan of the indoor range hood reaches the maximum, judging whether the current air quantity threshold A is the air quantity threshold A in the last communication process;
if yes, the indoor smoke machine sends a smaller air volume threshold value A to the communication network so as to update the current air volume threshold value A in the communication network; if not, the indoor smoke machine continuously acquires the current air volume threshold value A transmitted to the floor.
2. The air volume control method of the central flue system according to claim 1, wherein the current air volume threshold value a is transmitted layer by layer between floors, and specifically comprises:
the current air volume threshold value A is orderly transmitted layer by layer from a high floor to a low floor in a fixed period.
3. The air volume control method of the central flue system according to claim 1, wherein the current air volume threshold value a is transmitted layer by layer between floors, and specifically comprises:
the current air volume threshold value A is orderly transmitted layer by layer from a low floor to a high floor in a fixed period.
4. The air volume control method of the central flue system according to claim 1, further comprising the following steps in the control process:
judging whether the indoor range hood is changed from the running state to the shutdown state or not;
if not, the indoor smoke machine of each floor acquires the current air volume threshold value A transmitted to the floor;
if yes, the shut-down indoor smoke machine sends a default air volume threshold value A' to the communication network so as to update the current air volume threshold value A; the indoor smoke machine of each floor acquires the current air volume threshold value A transmitted to the floor.
5. The air volume control method of the central flue system according to any one of claims 1 to 4, wherein before determining whether the current air volume threshold A is the air volume threshold A in the last communication process, the method specifically comprises the following steps:
judging whether the actual air quantity Q of the indoor range hood is equal to the current air quantity threshold value A or not;
if the current air volume threshold value A is equal to the current air volume threshold value A, the indoor smoke machine continuously acquires the current air volume threshold value A transmitted to the floor;
if the actual air volume Q of the indoor range hood is larger than the current air volume threshold value A, reducing the rotating speed of the fan by the indoor range hood, and judging whether the actual air volume Q of the indoor range hood is equal to the current air volume threshold value A or not;
if the rotating speed of the fan is less than the maximum value, judging whether the rotating speed of the fan of the indoor smoke machine reaches the maximum value; if not, increasing the rotating speed of the fan by the indoor range hood, and judging whether the actual air quantity Q of the indoor range hood is equal to the current air quantity threshold value A or not; and if so, judging whether the current air volume threshold A is the air volume threshold A in the last communication process.
6. A central flue system is characterized by comprising indoor smoke exhaust machines (1) arranged on different floors, roof hoods (2) and an electric power storage module (4);
the roof hood (2) is arranged at an air outlet of the public flue (3); the indoor range hood (1) further comprises a communication module (11); the power storage module (4) is connected with the communication module (11) and is used for supplying power to the communication module (11); the indoor cigarette machines (1) are in communication connection through the communication modules (11).
7. The central flue system according to claim 6, wherein the indoor tobacco machine (1) further comprises a tobacco pipe (12); one end of the smoke pipe (12) is communicated with the smoke outlet of the indoor fan (1), and the other end of the smoke pipe is communicated with the public flue (3).
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