CN112484115A - Centralized smoke exhaust system for buildings - Google Patents
Centralized smoke exhaust system for buildings Download PDFInfo
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- CN112484115A CN112484115A CN202011318971.2A CN202011318971A CN112484115A CN 112484115 A CN112484115 A CN 112484115A CN 202011318971 A CN202011318971 A CN 202011318971A CN 112484115 A CN112484115 A CN 112484115A
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- smoke exhaust
- air inlet
- grading
- air outlet
- plate
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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
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
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- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention relates to a centralized smoke exhaust system for buildings, which comprises indoor smoke exhaust ventilators arranged in kitchens of residents on different floors and a common flue arranged in the building, and is characterized in that: the public flue outside is equipped with the supplementary fume extractor of N interval settings, and every supplementary fume extractor all includes auxiliary fan subassembly, air inlet board, air outlet board and pressure sensor, and when N supplementary fume extractor's air inlet board all cut off public flue inside, public flue divide into the hierarchical flue of N +1 that sets gradually from bottom to top. Compared with the prior art, the invention has the advantages that: 1. through installing N auxiliary fume extractor that the interval set up, divide into a plurality of independent part with public flue, it is not influenced to discharge fume each other. 2. For the middle-low-rise users, the auxiliary smoke exhaust devices at the corresponding positions can help the users to smoothly exhaust smoke, and the static pressure of the branch flues where all floors are located can be distributed at the peak period of smoke exhaust, so that the static pressure distribution is reasonable.
Description
Technical Field
The invention relates to a centralized smoke exhaust system for buildings.
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, air outlets of the indoor smoke exhaust ventilators are communicated with the public flue, and an air outlet of the public flue is communicated with an inlet of the outdoor fan system.
The main defects of the existing centralized smoke exhaust system of the building are represented as follows:
1. the phenomenon of uneven static pressure exists in the public flue, a bottom-layer user can select a range hood with high air pressure and high static pressure to ensure the smoke exhaust effect, the static pressure in the public flue can be further increased, and the resistance of the public flue is increased; although the outdoor main fan system can reduce the static pressure of the public flue and exhaust oil smoke in the public flue, the leakage and the uneven static pressure distribution of the public flue have obvious effect on the high-rise which discharges the smoke smoothly, but the common effect on the medium and low-rise cannot solve the problem of the medium and low-rise smoke discharge, and the static pressure distribution is still uneven. The auxiliary smoke discharge of the outdoor unit at the top of the building can cause smoke discharge blockage due to the resistance of the filter screen under the condition of not starting the machine, and resource waste can be caused when the outdoor unit is started all the time or a small proportion of users start the machine during cooking.
2. The public flue pressure distribution can not be carried out according to the smoke discharge quantity and the smoke discharge requirements of users, the smoke discharge requirements of the users under different cooking conditions are different, the users can only discharge smoke by using the highest gear during the existing smoke discharge peak period, and the noise and the power consumption can confuse the users.
Disclosure of Invention
The invention aims to solve the technical problem of providing a building centralized smoke exhaust system which can effectively solve the problem of difficult smoke exhaust of bottom users driven by uneven static pressure of a public flue in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a building centralized smoke exhaust system, is including setting up the indoor range hood in different floor resident family kitchen inside, sets up the public flue in building inside, its characterized in that: public flue outside is equipped with the supplementary fume extractor of a N interval setting, and N is more than or equal to 2's natural number, and every supplementary fume extractor all includes:
the auxiliary fan assembly is arranged outside the public flue and is provided with an air inlet and an air outlet, and the side wall of the public flue is provided with a grading air inlet and a grading air outlet which are respectively communicated with the air inlet of the auxiliary fan assembly;
the air inlet plate is movably arranged at the grading air inlet, the shape of the air inlet plate is the same as the shape of the internal section of the public flue, the air inlet plate is in an open state and a closed state, when the air inlet plate is in the open state, the air inlet plate cuts off the internal part of the public flue, at the moment, the grading air inlet is in the open state, when the air inlet plate is in the closed state, the air inlet plate seals the grading air inlet, and the public flue is in a conducting state;
the air outlet plate is movably arranged at the grading air outlet and can open or close the grading air outlet;
when the air inlet plates of the N auxiliary smoke exhaust devices are used for isolating the inside of the public flue, the public flue is divided into N +1 grading flues which are sequentially arranged from bottom to top, and pressure sensors used for detecting the internal pressure of the grading flues are arranged in the N grading flues below the public flue.
As an improvement, the air inlet plate is a first electric adjusting valve plate arranged at the grading air outlet; the air outlet plate is a second electric adjusting valve plate arranged at the grading air outlet.
And the distance between the air inlet plates of two adjacent auxiliary smoke exhaust devices in the N auxiliary smoke exhaust devices is the same.
The improvement is that the data of the N pressure sensors are recorded and the data of the N pressure sensors are recordedIs PnN is 1, 2, … … N, and the maximum flue static pressure which can satisfy the smoke discharge of the user is P0The N auxiliary smoke exhaust devices are controlled in the following mode:
when P is presentnLess than P0When the pressure of the current flue meets the smoke exhaust requirement of a user, closing an auxiliary fan assembly of the corresponding auxiliary smoke exhaust device, and closing an air inlet plate and an air outlet plate of the corresponding auxiliary fan assembly; when P is presentnGreater than or equal to P0Opening an auxiliary fan assembly of the corresponding auxiliary smoke exhaust device when the current flue does not meet the smoke exhaust requirements of a user, opening an air inlet plate of the corresponding auxiliary smoke exhaust device, and opening an air outlet plate of the corresponding auxiliary smoke exhaust device; measuring the pressure sensor data again, see PnLess than P0If not, increasing the wind speed of the auxiliary fan assembly of the corresponding auxiliary smoke exhaust device, and if so, adjusting the wind speed of the auxiliary fan assembly of the corresponding auxiliary smoke exhaust device, so that (P)0-Pn)/Pn<And k are rotating speed regulating coefficients.
Improve again, the air outlet plate is the electronic adjusting valve plate of angularly adjustable among N supplementary fume extractor, and the angle of air outlet plate is adjusted through following mode among N supplementary fume extractor:
the pressure difference of two adjacent stages of grading flues is recorded as delta Pn，△Pn＝Pn+1-Pn；
When Δ Pn/Pn+1<t and t are preset constants, the pressure difference of two adjacent upper and lower stages of the grading flues is large, and the angle of the air outlet plate in the corresponding auxiliary smoke exhaust device is adjusted to be 90 degrees to the maximum; when Δ Pn/Pn+1Not less than t, reducing the angle of the air outlet plate in the corresponding auxiliary smoke exhaust device until then judging the delta Pn/Pn+1T1, where t1 is a predetermined constant greater than t.
Compared with the prior art, the invention has the advantages that:
1. through installing N auxiliary fume extractor that the interval set up, divide into a plurality of independent part with public flue, it is not influenced to discharge fume each other.
2. For the middle-low-rise users, the auxiliary smoke exhaust devices at the corresponding positions can help the middle-low-rise users to smoothly exhaust smoke, the static pressure of the branch flues where all floors are located can be distributed at the peak period of smoke exhaust, and the reasonable distribution of the static pressure is achieved.
Drawings
FIG. 1 is a schematic structural diagram of a centralized smoke exhaust system of a building according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an auxiliary smoke exhaust device in an embodiment of the invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1, the building centralized smoke exhaust system comprises an indoor range hood 1 arranged in kitchens of residents on different floors and a public flue 2 arranged in the building, wherein N auxiliary smoke exhaust devices 3 are arranged on the outer side of the public flue 2 at intervals in sequence, and N is a natural number greater than or equal to 2. One or more indoor range hoods 1 between two adjacent auxiliary smoke exhaust devices 3 can be provided.
Each auxiliary smoke evacuation device 3 has the same structure, as shown in fig. 2, and includes:
the auxiliary fan assembly 31 is arranged outside the public flue 2 and is provided with an air inlet and an air outlet, and the side wall of the public flue is provided with a grading air inlet 21 and a grading air outlet 22 which are respectively communicated with the air inlet of the auxiliary fan assembly;
the air inlet plate 32 is movably arranged at the grading air inlet 21, the shape of the air inlet plate is the same as the shape of the internal section of the public flue, the air inlet plate is in an open state and a closed state, when the air inlet plate is in the open state, the air inlet plate partitions the internal part of the public flue, at the moment, the grading air inlet is in the open state, when the air inlet plate is in the closed state, the air inlet plate seals the grading air inlet, and the public flue is in a conducting state;
the air outlet plate 33 is movably arranged at the grading air outlet 22 and can open or close the grading air outlet;
when the air inlet plates of the N auxiliary smoke exhaust devices are used for separating the interior of the public flue, the public flue is divided into N +1 grading flues which are sequentially arranged from bottom to top, and pressure sensors 34 used for detecting the internal pressure of the grading flues are arranged in the N grading flues below the public flue.
The air inlet plate is a first electric adjusting valve plate arranged at the grading air outlet; the air outlet plate is a second electric adjusting valve plate arranged at the grading air outlet.
The distance between the air inlet plates of two adjacent auxiliary smoke exhaust devices in the N auxiliary smoke exhaust devices is the same.
After the indoor range hood is started, recording data of N pressure sensors in the public flue, and recording the data of the N pressure sensors as PnN is 1, 2, … … N, and the maximum flue static pressure which can satisfy the smoke discharge of the user is P0The N auxiliary smoke exhaust devices are controlled in the following mode:
when P is presentnLess than P0When the pressure of the current flue meets the smoke exhaust requirement of a user, closing an auxiliary fan assembly of the corresponding auxiliary smoke exhaust device, and closing an air inlet plate and an air outlet plate of the corresponding auxiliary fan assembly; when P is presentnGreater than or equal to P0Opening an auxiliary fan assembly of the corresponding auxiliary smoke exhaust device when the current flue does not meet the smoke exhaust requirements of a user, opening an air inlet plate of the corresponding auxiliary smoke exhaust device, and opening an air outlet plate of the corresponding auxiliary smoke exhaust device; measuring the pressure sensor data again, see PnLess than P0If not, increasing the wind speed of the auxiliary fan assembly of the corresponding auxiliary smoke exhaust device, and if so, adjusting the wind speed of the auxiliary fan assembly of the corresponding auxiliary smoke exhaust device, so that (P)0-Pn)/Pn<And k are rotating speed regulating coefficients.
The pressure difference of two adjacent stages of grading flues is recorded as delta Pn，△Pn＝Pn+1-Pn；
When Δ Pn/Pn+1<t and t are preset constants, the pressure difference of two adjacent upper and lower stages of the grading flues is large, and the angle of the air outlet plate in the corresponding auxiliary smoke exhaust device is adjusted to be 90 degrees to the maximum; when Δ Pn/Pn+1Not less than t, reducing the angle of the air outlet plate in the corresponding auxiliary smoke exhaust device until then judging the delta Pn/Pn+1T1, where t1 is a predetermined constant greater than t.
Claims (5)
1. The utility model provides a building centralized smoke exhaust system, is including setting up the indoor range hood in different floor resident family kitchen inside, sets up the public flue in building inside, its characterized in that: public flue outside is equipped with the supplementary fume extractor of a N interval setting, and N is more than or equal to 2's natural number, and every supplementary fume extractor all includes:
the auxiliary fan assembly is arranged outside the public flue and is provided with an air inlet and an air outlet, and the side wall of the public flue is provided with a grading air inlet and a grading air outlet which are respectively communicated with the air inlet of the auxiliary fan assembly;
the air inlet plate is movably arranged at the grading air inlet, the shape of the air inlet plate is the same as the shape of the internal section of the public flue, the air inlet plate is in an open state and a closed state, when the air inlet plate is in the open state, the air inlet plate cuts off the internal part of the public flue, at the moment, the grading air inlet is in the open state, when the air inlet plate is in the closed state, the air inlet plate seals the grading air inlet, and the public flue is in a conducting state;
the air outlet plate is movably arranged at the grading air outlet and can open or close the grading air outlet;
when the air inlet plates of the N auxiliary smoke exhaust devices are used for isolating the inside of the public flue, the public flue is divided into N +1 grading flues which are sequentially arranged from bottom to top, and pressure sensors used for detecting the internal pressure of the grading flues are arranged in the N grading flues below the public flue.
2. The building centralized smoke exhaust system according to claim 1, wherein: the air inlet plate is a first electric adjusting valve plate arranged at the grading air outlet; the air outlet plate is a second electric adjusting valve plate arranged at the grading air outlet.
3. The building centralized smoke exhaust system according to claim 1, wherein: the distance between the air inlet plates of two adjacent auxiliary smoke exhaust devices in the N auxiliary smoke exhaust devices is the same.
4. The building centralized smoke exhaust system according to claim 1, wherein: recording data of N pressure sensors, and recording the data of the N pressure sensors as PnN is 1, 2, … … N, and the maximum flue static pressure which can satisfy the smoke discharge of the user is P0The N auxiliary smoke exhaust devices are controlled in the following mode:
when P is presentnLess than P0When the pressure of the current flue meets the smoke exhaust requirement of a user, closing an auxiliary fan assembly of the corresponding auxiliary smoke exhaust device, and closing an air inlet plate and an air outlet plate of the corresponding auxiliary fan assembly; when P is presentnGreater than or equal to P0Opening an auxiliary fan assembly of the corresponding auxiliary smoke exhaust device when the current flue does not meet the smoke exhaust requirements of a user, opening an air inlet plate of the corresponding auxiliary smoke exhaust device, and opening an air outlet plate of the corresponding auxiliary smoke exhaust device; measuring the pressure sensor data again, see PnLess than P0If not, increasing the wind speed of the auxiliary fan assembly of the corresponding auxiliary smoke exhaust device, and if so, adjusting the wind speed of the auxiliary fan assembly of the corresponding auxiliary smoke exhaust device, so that (P)0-Pn)/Pn<And k are rotating speed regulating coefficients.
5. The building centralized smoke exhaust system according to claim 4, wherein: the air outlet plate is the electric adjusting valve plate with adjustable angle in the N auxiliary smoke exhaust devices, and the angle of the air outlet plate in the N auxiliary smoke exhaust devices is adjusted through the following mode:
the pressure difference of two adjacent stages of grading flues is recorded as delta Pn，△Pn＝Pn+1-Pn；
When Δ Pn/Pn+1<t and t are preset constants, the pressure difference of two adjacent upper and lower stages of the grading flues is large, and the angle of the air outlet plate in the corresponding auxiliary smoke exhaust device is adjusted to be 90 degrees to the maximum; when in use△Pn/Pn+1Not less than t, reducing the angle of the air outlet plate in the corresponding auxiliary smoke exhaust device until then judging the delta Pn/Pn+1T1, where t1 is a predetermined constant greater than t.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011318971.2A CN112484115B (en) | 2020-11-23 | 2020-11-23 | Centralized smoke exhaust system for buildings |
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|---|---|---|---|
| CN202011318971.2A CN112484115B (en) | 2020-11-23 | 2020-11-23 | Centralized smoke exhaust system for buildings |
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| CN112484115A true CN112484115A (en) | 2021-03-12 |
| CN112484115B CN112484115B (en) | 2022-02-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993013881A1 (en) * | 1992-01-21 | 1993-07-22 | Futurum Ab | Ventilation system |
| US20130040025A1 (en) * | 2010-02-11 | 2013-02-14 | Morganti Flavio Innovaciones Gastronomicas, S.L. | Cooking, smoking, and aromatization device |
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| CN104654411A (en) * | 2015-02-10 | 2015-05-27 | 程邦杰 | Anti-backflow range hood |
| JP5921201B2 (en) * | 2012-01-05 | 2016-05-24 | 三菱電機株式会社 | Cooker |
| CN206637676U (en) * | 2016-12-15 | 2017-11-14 | 杭州老板电器股份有限公司 | A kind of device for lifting lampblack absorber pressure |
| CN206959048U (en) * | 2017-05-27 | 2018-02-02 | 宁波方太厨具有限公司 | Common duct smoke evacuation system |
| CN109520065A (en) * | 2017-09-18 | 2019-03-26 | 宁波方太厨具有限公司 | A kind of household kitchen air-makeup system and application have the benefit wind method of the system |
| CN110274287A (en) * | 2019-05-23 | 2019-09-24 | 宁波方太厨具有限公司 | A kind of control method of public fume extractor and the public fume extractor |
| CN209877048U (en) * | 2019-02-22 | 2019-12-31 | 宁波方太厨具有限公司 | Oil smoke buffer mechanism for range hood |
| CN110887085A (en) * | 2019-11-23 | 2020-03-17 | 苏州奥和通风系统有限公司 | Kitchen oil smoke treatment and discharge system |
| CN211316280U (en) * | 2019-11-23 | 2020-08-21 | 苏州奥和通风系统有限公司 | Central integrated oil smoke treatment and discharge system |
-
2020
- 2020-11-23 CN CN202011318971.2A patent/CN112484115B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993013881A1 (en) * | 1992-01-21 | 1993-07-22 | Futurum Ab | Ventilation system |
| US20130040025A1 (en) * | 2010-02-11 | 2013-02-14 | Morganti Flavio Innovaciones Gastronomicas, S.L. | Cooking, smoking, and aromatization device |
| JP5921201B2 (en) * | 2012-01-05 | 2016-05-24 | 三菱電機株式会社 | Cooker |
| CN203755607U (en) * | 2014-01-26 | 2014-08-06 | 华信恒基（北京）科技发展有限公司 | Amalgamated dwelling flue purification and discharge system |
| CN104654411A (en) * | 2015-02-10 | 2015-05-27 | 程邦杰 | Anti-backflow range hood |
| CN206637676U (en) * | 2016-12-15 | 2017-11-14 | 杭州老板电器股份有限公司 | A kind of device for lifting lampblack absorber pressure |
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| CN109520065A (en) * | 2017-09-18 | 2019-03-26 | 宁波方太厨具有限公司 | A kind of household kitchen air-makeup system and application have the benefit wind method of the system |
| CN209877048U (en) * | 2019-02-22 | 2019-12-31 | 宁波方太厨具有限公司 | Oil smoke buffer mechanism for range hood |
| CN110274287A (en) * | 2019-05-23 | 2019-09-24 | 宁波方太厨具有限公司 | A kind of control method of public fume extractor and the public fume extractor |
| CN110887085A (en) * | 2019-11-23 | 2020-03-17 | 苏州奥和通风系统有限公司 | Kitchen oil smoke treatment and discharge system |
| CN211316280U (en) * | 2019-11-23 | 2020-08-21 | 苏州奥和通风系统有限公司 | Central integrated oil smoke treatment and discharge system |
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| Publication number | Publication date |
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| CN112484115B (en) | 2022-02-18 |
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