CN113074393A - Control method of centralized smoke exhaust system of building - Google Patents
Control method of centralized smoke exhaust system of building Download PDFInfo
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- CN113074393A CN113074393A CN202010008870.9A CN202010008870A CN113074393A CN 113074393 A CN113074393 A CN 113074393A CN 202010008870 A CN202010008870 A CN 202010008870A CN 113074393 A CN113074393 A CN 113074393A
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- indoor range
- range hood
- smoke exhaust
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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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- Architecture (AREA)
- Civil Engineering (AREA)
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention relates to a control method of a building centralized smoke exhaust system, wherein the building centralized smoke exhaust system comprises M indoor smoke exhaust ventilators, a public flue and a cloud platform server; the method is characterized in that: a first corresponding relation is preset in a cloud platform server; a second corresponding relation is prestored in each indoor range hood; after the indoor range hood is started, sending self starting information and fan gear information to a cloud platform server; the cloud platform server calculates the starting rate of the indoor range hood, acquires the air exhaust volume of the indoor range hood and sends the air exhaust volume to all started indoor range hoods; and each indoor range hood controls the opening and closing degree of the electric check valve of the corresponding floor. Compared with the prior art, the invention has the advantages that: the air quantity of each floor is approximately uniform by adjusting the opening rate of the indoor range hood and the opening and closing degrees of the electric valves on different floors, and the smoke exhaust requirements of each floor are met.
Description
Technical Field
The invention relates to a control method of a centralized smoke exhaust system of a building.
Background
The range hood that uses in the kitchen of house and apartment at present, most all are independent separately, do not have the relation between the range hood of different residents, the user installs by oneself and inhales oil smoke and has very big randomness, most users directly set up the discharge port of range hood at the window trompil or the wall body hole digging in kitchen, the oil smoke directly discharges from the outer wall, cause the pollution interference to upper and lower floor resident family, and can cause oil pollution to the outer wall, can also influence the whole outward appearance image of building simultaneously.
With the rapid development of economy, more and more high-rise residences pull out the ground like spring shoots after rain. In order to keep the appearance of the whole building, a centralized smoke exhaust system of the building is adopted to perform centralized smoke exhaust in a plurality of high-rise civil residences, the system comprises indoor smoke exhaust ventilators arranged in kitchens of different residents on different floors, a public flue arranged in the building and an outdoor main fan system arranged on the top layer of the building, an air outlet of the indoor smoke exhaust ventilator is communicated with the public flue through an angle-adjustable electric check valve, and an air outlet of the public flue is communicated with an inlet of the outdoor fan system.
However, the cooking habit of Chinese people mostly likes stir-frying, so that the air volume and the air pressure in the public flue are large in the peak cooking period. For a centralized smoke exhaust system of a building, the situation that pressure distribution in a common flue is extremely uneven is often shown, when the pressure in the common flue is high, and meanwhile, due to the fact that smoke pipes and electric check valves are installed improperly, the problems of unsmooth smoke exhaust and excessive kitchen noise often occur on some floors (particularly low floors). Meanwhile, due to the difference of the floor positions, the smoke exhaust resistance of a general high floor is small, the air exhaust amount is large, the smoke exhaust resistance of a user at the bottom layer is large, the air exhaust amount is small, and the situation is particularly obvious under the condition of high on-time rate. Therefore, the uneven exhaust air volume is also a reason for limiting the unsmooth smoke discharge of the users in the low floors.
In the existing centralized smoke exhaust system for buildings, an indoor smoke exhaust ventilator is basically controlled by a constant gear, namely, when a user clicks one of strong, medium and weak gears on a control panel, the smoke exhaust ventilator can only run on a performance curve under the gear, and the control mode can change the air volume along with the change of rear-end resistance (for example, the opening rate is increased, the flue resistance is increased, and the air volume is reduced). If the air exhaust amount of the indoor range hood is adjusted to the maximum, although the oil smoke absorption effect of the user can be ensured, kitchen noise is large when the range hood is used, and meanwhile, the range hood can be influenced by smoke exhaust of other floors; if the setting of the exhaust volume of the range hood is small, although the noise of the range hood is low, the exhaust volume is small, and the oil smoke absorption effect is difficult to guarantee. In a word, the current constant gear control mode is difficult to realize the consideration of noise and oil smoke absorption effect.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a control method of a centralized smoke exhaust system of a building, which can meet the requirement of approximately uniform air exhaust volume of different floors, aiming at the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a control method of a building centralized smoke exhaust system comprises the steps that the building centralized smoke exhaust system comprises M smoke exhaust ventilators arranged in kitchens of residents on different floors, wherein M is a natural number; the system comprises a public flue arranged inside a building and a cloud platform server; air outlets of the M indoor range hoods are communicated with a common flue through electric check valves, and the M indoor range hoods are in communication connection with the cloud platform server; the method is characterized in that: a first corresponding relation between the air exhaust volumes of the indoor range hoods corresponding to different start-up rates is prestored in the cloud platform server; a second corresponding relation between the opening degree of the electric check valve under different fan gears and the air exhaust amount of the indoor range hood is prestored in each indoor range hood; the control method of the centralized smoke exhaust system for the building comprises the following steps:
step 1, after an indoor range hood is started, sending self starting information and fan gear information to a cloud platform server;
step 3, the cloud platform server acquires the air exhaust volume of the indoor range hood according to the starting rate of the indoor range hood and the first corresponding relation, and sends the air exhaust volume to all the started indoor range hoods;
and 4, obtaining the opening degree of the electric check valve of each indoor range hood under the current fan gear information according to the air exhaust amount and the second corresponding relation, and correspondingly controlling the opening degree of the electric check valve of the corresponding floor.
As an improvement, when the gear information of the fan of the indoor range hood changes, or the number of the opened indoor range hoods changes, the centralized smoke exhaust system of the building repeats the steps 1 to 4.
And the electric check valve comprises a valve body with an air outlet, a valve plate with an opening angle capable of being changed is arranged at the air outlet of the valve body, and a second corresponding relation formula stored in each indoor range hood in advance is obtained in the following mode:
the indoor range hood is started, a user selects a certain fan gear, the opening angle of the valve plate of the electric check valve is gradually increased from zero until the valve plate is completely opened, and the air discharge amount of the indoor range hood when the valve plate is at different opening angles is obtained through the air quantity testing device; and then, acquiring the corresponding relation between the opening degree of the electric check valve and the air exhaust amount of the indoor range hood under other fan gears by using the same mode.
Compared with the prior art, the invention has the advantages that: the air quantity of each floor is approximately uniform by adjusting the opening rate of the indoor range hood and the opening and closing degrees of the electric valves on different floors, and the smoke exhaust requirements of each floor are met.
Drawings
Fig. 1 is a schematic structural diagram of a centralized smoke exhaust system of a building in the embodiment of the invention;
fig. 2 is a flowchart of a control method of a centralized smoke exhaust system of a building according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The centralized smoke exhaust system for the building shown in fig. 1 comprises M indoor smoke exhaust ventilators 11 and … … 1M arranged in kitchens of residents on different floors, wherein M is a natural number; the system comprises a public flue 2 arranged inside a building and a cloud platform server 3; air outlets of the M indoor range hoods are communicated with the public flue 2 through electric check valves 4, and the M indoor range hoods are in communication connection with the cloud platform server 3.
A first corresponding relation between the air exhaust volumes of the indoor range hoods corresponding to different start-up rates is prestored in the cloud platform server; a second corresponding relation between the opening degree of the electric check valve under different fan gears and the air exhaust amount of the indoor range hood is prestored in each indoor range hood; the control method of the centralized smoke exhaust system for the building comprises the following steps:
step 1, after an indoor range hood is started, sending self starting information and fan gear information to a cloud platform server;
step 3, the cloud platform server acquires the air exhaust volume of the indoor range hood according to the starting rate of the indoor range hood and the first corresponding relation, and sends the air exhaust volume to all the started indoor range hoods;
and 4, obtaining the opening degree of the electric check valve of each indoor range hood under the current fan gear information according to the air exhaust amount and the second corresponding relation, and correspondingly controlling the opening degree of the corresponding electric check valve.
When the fan gear information of the indoor range hood changes fire or the number of the opened indoor range hoods changes, the centralized smoke exhaust system of the building repeats the steps 1 to 4.
The electric check valve comprises a valve body with an air outlet, a valve plate with an opening angle capable of being changed is arranged at the air outlet of the valve body, and a second corresponding relation formula stored in advance in each indoor range hood is obtained in the following mode:
the indoor range hood is started, a user selects a certain fan gear, the opening angle of the valve plate of the electric check valve is gradually increased from zero until the valve plate is completely opened, and the air discharge amount of the indoor range hood when the valve plate is at different opening angles is obtained through the air quantity testing device; and then, acquiring the corresponding relation between the opening degree of the electric check valve and the air exhaust amount of the indoor range hood under other fan gears by using the same mode.
Claims (3)
1. A control method of a building centralized smoke exhaust system comprises the steps that the building centralized smoke exhaust system comprises M smoke exhaust ventilators arranged in kitchens of residents on different floors, wherein M is a natural number; the system comprises a public flue arranged inside a building and a cloud platform server; air outlets of the M indoor range hoods are communicated with a common flue through electric check valves, and the M indoor range hoods are in communication connection with the cloud platform server; the method is characterized in that: a first corresponding relation between the air exhaust volumes of the indoor range hoods corresponding to different start-up rates is prestored in the cloud platform server; a second corresponding relation between the opening degree of the electric check valve under different fan gears and the air exhaust amount of the indoor range hood is prestored in each indoor range hood; the control method of the centralized smoke exhaust system for the building comprises the following steps:
step 1, after an indoor range hood is started, sending self starting information and fan gear information to a cloud platform server;
step 2, calculating the starting rate of the indoor range hood by the cloud platform server: the cloud platform server counts the number of started indoor range hoods, divides the number of started indoor range hoods by the total number M of the indoor range hoods, and marks the result as the starting rate of the indoor range hoods;
step 3, the cloud platform server acquires the air exhaust volume of the indoor range hood according to the starting rate of the indoor range hood and the first corresponding relation, and sends the air exhaust volume to all the started indoor range hoods;
and 4, obtaining the opening degree of the electric check valve of each indoor range hood under the current fan gear information according to the air exhaust amount and the second corresponding relation, and correspondingly controlling the opening degree of the corresponding electric check valve.
2. The control method of the centralized building smoke exhaust system according to claim 1, wherein: when the fan gear information of the indoor range hood changes fire or the number of the opened indoor range hoods changes, the centralized smoke exhaust system of the building repeats the steps 1 to 4.
3. The control method of the centralized building smoke exhaust system according to claim 1 or 2, wherein: the electric check valve comprises a valve body with an air outlet, a valve plate with an opening angle capable of being changed is arranged at the air outlet of the valve body, and a second corresponding relation formula stored in advance in each indoor range hood is obtained in the following mode:
the indoor range hood is started, a user selects a certain fan gear, the opening angle of the valve plate of the electric check valve is gradually increased from zero until the valve plate is completely opened, and the air discharge amount of the indoor range hood when the valve plate is at different opening angles is obtained through the air quantity testing device; and then, acquiring the corresponding relation between the opening degree of the electric check valve and the air exhaust amount of the indoor range hood under other fan gears by using the same mode.
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| CN202010008870.9A CN113074393A (en) | 2020-01-06 | 2020-01-06 | Control method of centralized smoke exhaust system of building |
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| CN202010008870.9A CN113074393A (en) | 2020-01-06 | 2020-01-06 | Control method of centralized smoke exhaust system of building |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183785A (en) * | 2021-10-27 | 2022-03-15 | 宁波方太厨具有限公司 | Operation control method of compatible building centralized smoke exhaust system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114183785A (en) * | 2021-10-27 | 2022-03-15 | 宁波方太厨具有限公司 | Operation control method of compatible building centralized smoke exhaust system |
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Application publication date: 20210706 |