CN111207423B - Preset angle control method for flue check valve of high-rise building - Google Patents
Preset angle control method for flue check valve of high-rise building Download PDFInfo
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- CN111207423B CN111207423B CN201811390542.9A CN201811390542A CN111207423B CN 111207423 B CN111207423 B CN 111207423B CN 201811390542 A CN201811390542 A CN 201811390542A CN 111207423 B CN111207423 B CN 111207423B
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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
A preset angle control method for a flue check valve of a high-rise building comprises range hoods installed on different floors, an air outlet of each range hood is communicated with a common flue through a smoke pipe, a check valve plate is installed in each smoke pipe, a flue fan is installed in the common flue, each range hood is provided with a fan, and each range hood is matched with an intelligent valve socket capable of detecting the total power of each range hood. The invention has the advantages that: according to the preset angle control method of the flue check valve of the high-rise building, the intelligent valve bodies of different floors are used for detecting the input power of indoor machines, the method of comparing power feedback adjusting valve plates is used for realizing self-adaptive installation and adjustment, the current adjusting angle is recorded, the angle adjustment before installation can be easily finished, the valve plate angle is automatically sequenced and adaptively adjusted according to the installation position and the flue without the preset value, and in addition, the automatic reconfiguration of a multi-set valve plate angle scheme can be carried out according to the information of the current lowest starting floor.
Description
Technical Field
The invention relates to a central flue system, in particular to a preset angle control method of a flue check valve of a high-rise building.
Background
At present, floors of newly-built floors in cities are generally higher and higher, and the outlet of a high-rise common flue is generally arranged at the top of the floors, so that the outlet resistance of a system can be influenced by the switching condition of a range hood of each user, and the smoke exhaust condition of users at the bottom is severe. In recent years, a user side angle-adjustable valve is combined with a roof flue outlet main fan to filter and discharge in a centralized mode and is applied to certain finish-finished building plates, the roof main fan carries out frequency conversion and valve plate preset angles to achieve flow distribution aiming at users with different opening rates, the problem that users at the bottom discharge smoke badly can be solved to a certain extent, and meanwhile the flow rate and the noise of a whole flue system are effectively controlled. If the floor heights of the collimating cylinder flues are different, the size specifications of the rectangular sections are different, and the other flue is a new flue named as a stepped flue, the two flues have larger difference in resistance caused by different building actual sizes higher than the area on different floors. The conventional method for adjusting the actual flow by utilizing a common flue booster fan to discharge smoke and adjusting the angle by using a valve plate is only used for adjusting the flow at a preset fixed angle, so that the method is difficult to adapt to various flue environments, the calculation workload of CFD (computational fluid dynamics) of the angle for a certain specific flue is very large, the customized installation of each building is difficult to realize in the actual environment, and the flow deviation of a user is large; in addition, the method usually adjusts the angle according to the flow of the lowest floor as a reference, and if the lowest starting floor is not the lowest floor, the system resistance is easily larger, and the energy consumption of the host is influenced.
In addition, as the resistance of different floors can be changed (the distance of the flues is increased to cause the loss along the way to be increased, and the sectional area of different floors is suddenly changed to cause the local loss to be obviously changed), on the whole, the lower the resistance of the floors is larger, (all the flues are based on the premise of a top floor outlet smoke exhaust scheme at present), the smoke is difficult to be exhausted. Most range hoods in the market are driven by multi-gear or single-gear single-phase alternating current motors, and the power and the actual flow rate of the range hoods operating in the same gear under the condition of different outlet resistances have larger difference. The P-Q-W curve can be measured in advance for the range hoods with the same brands of valve bodies and central machines, but the performance curves of the range hoods with other brands cannot be known in advance.
Disclosure of Invention
The invention aims to solve the technical problem of providing a preset angle control method of a flue check valve of a high-rise building, wherein the angle of a valve plate can be adaptively adjusted according to an installation position and a flue.
The technical scheme adopted by the invention for solving the technical problems is as follows: the preset angle control method of the flue check valve of the high-rise building comprises the following steps of installing the range hoods on different floors, communicating an air outlet of each range hood with a common flue through respective smoke pipes, installing a flue fan in the common flue, and enabling each range hood to be provided with the fan, wherein the preset angle control method of the flue check valve of the high-rise building comprises the following steps: an intelligent valve capable of detecting the power of the range hood is arranged in each smoke pipe, the intelligent valve is provided with a check valve plate, and the preset angle control method of the intelligent valve comprises the following steps:
firstly, starting a system, starting any two user side range hoods to a certain gear or rotating speed, synchronously opening corresponding check valve plates to a specific angle, closing other valves and range hoods, and starting a flue fan to a certain rotating speed to operate or close;
secondly, acquiring the power of the current range hood through the intelligent valve;
thirdly, sorting the address codes corresponding to the check valve plates according to the power from small to large; closing one of the valves, opening a new valve and adjusting to the same angle;
fourthly, repeating the second step and the third step;
traversing all the check valve plates to finish sequencing;
step six, defaulting that the power of the same gear is in a sequence from low to high of the floors from small to large, and binding the floors and the address codes of the check valve plates;
seventhly, opening the check valve plates of the N layers and the N + i layers to the maximum opening angle, and closing the check valve plates of other floors, wherein i is a positive integer and is more than or equal to 1 and less than or equal to N-N;
comparing the power deviation of the n layer and the n + i layer,
if the deviation exceeds a preset value, reducing the opening angle of the valve plate of the n + i layer;
if the power of the n + i layer is less than the power of the n layer, an error is reported;
if the deviation is smaller than the preset value, entering the step ninthly;
ninthly, recording the opening angle of the valve plate when the lowest starting layer of the n + i layer is n;
d, judging whether the i layer is traversed or not;
As a topological structure, the flue fan forms a host, and the indoor range hood forms a slave.
Under the topology structure, the steps of judging the current lowest running layer number and the target flow by the host are as follows:
starting any indoor range hood, and awakening a host;
secondly, acquiring the floor number of the indoor range hood which is currently operated;
thirdly, sequencing and judging the lowest floor of the starting;
fourthly, inquiring the opening angle of a group of valve plates corresponding to the current lowest starting floor;
fifthly, calculating the starting rate g by the host;
sixthly, judging whether the opening rate g is within m, n;
if m is less than or equal to g and less than or equal to n, the target flow is unchanged;
if g < m, the target flow is increased;
if g > n, the target flow is adjusted to be low;
and seventhly, adjusting the frequency or gear of the main machine.
In order to smoothly adjust the opening and closing angle of the check valve plate, a valve plate control motor for adjusting the opening angle of the check valve plate is installed on the intelligent valve.
Compared with the prior art, the invention has the advantages that: according to the preset angle control method of the flue check valve of the high-rise building, the intelligent valve bodies of different floors are used for detecting the input power of indoor machines, the method of comparing power feedback adjusting valve plates is used for realizing self-adaptive installation and adjustment, the current adjusting angle is recorded, the angle adjustment before installation can be easily finished, the valve plate angle is automatically sequenced and adaptively adjusted according to the installation position and the flue without the preset value, and in addition, the automatic reconfiguration of a multi-set valve plate angle scheme can be carried out according to the information of the current lowest starting floor.
Drawings
FIG. 1 is a P-Q curve diagram of a range hood according to an embodiment of the present invention;
FIG. 2 is a W-Q curve diagram of the range hood according to the embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an indoor range hood according to an embodiment of the present invention;
FIG. 5 is a flowchart of a method for controlling a preset angle of a valve plate according to an embodiment of the present invention;
FIG. 6 is a flow chart of host target traffic adjustment according to an embodiment of the present invention;
fig. 7 is a schematic topology diagram of a master and a slave according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 and fig. 2, the power and the actual flow rate of the range hood are monotone increasing functions (non-linearity), and when the angle of the valve is adjusted, the downstair valve body is fixed, and the angle of the upstairs valve body is adjusted, so that the power of the two is the same, that is, the current same flow rate, that is, the system resistance is the same.
As shown in fig. 3 to 6, the central flue system of the present embodiment includes range hoods 1 installed on different floors, an air outlet of each range hood 1 is communicated with a common flue 3 through a respective smoke tube 2, a flue fan 5 is installed in the common flue 3, the flue fan 5 constitutes a booster fan, the range hood 1 is provided with a fan 11, an intelligent valve 4 capable of detecting the power of the range hood is installed in each smoke tube 2, the intelligent valve 4 detects the power of the range hood through a power detection socket thereof, when in use, the range hood socket is inserted into a wall power supply port through the power detection socket of the intelligent valve, and the total power of the range hood of any brand can be detected. The intelligent valve 4 further comprises a check valve plate 41 and a valve plate control motor 6 for adjusting the opening angle of the check valve plate 4.
The preset angle control method of the flue check valve of the high-rise building comprises the following steps:
firstly, starting a system, starting any two user side range hoods to a certain gear or rotating speed, synchronously opening corresponding check valve plates to a specific angle, closing other valves and range hoods, and starting a flue fan to a certain rotating speed to operate or close;
secondly, acquiring the power of the current range hood through the intelligent valve;
thirdly, sorting the address codes corresponding to the check valve plates according to the power from small to large; closing one of the valves, opening a new valve and adjusting to the same angle;
fourthly, repeating the second step and the third step;
traversing all the check valve plates to finish sequencing;
step six, defaulting that the power of the same gear is in a sequence from low to high of the floors from small to large, and binding the floors and the address codes of the check valve plates;
seventhly, opening the check valve plates of the N layers and the N + i layers to the maximum opening angle, and closing the check valve plates of other floors, wherein i is a positive integer and is more than or equal to 1 and less than or equal to N-N;
comparing the power deviation of the n layer and the n + i layer,
if the deviation exceeds a preset value, reducing the opening angle of the valve plate of the n + i layer;
if the power of the n + i layer is less than the power of the n layer, an error is reported;
if the deviation is smaller than the preset value, entering the step ninthly;
ninthly, recording the opening angle of the valve plate when the lowest starting layer of the n + i layer is n;
d, judging whether the i layer is traversed or not;
As shown in fig. 7, the topology of the system is: the flue fan 5 in the common flue 3 forms a host machine, and each indoor range hood 1 forms a slave machine.
Under the topological structure, the steps of judging the current lowest running layer number and the target flow by the host are as follows:
starting any indoor range hood, and awakening a host;
secondly, acquiring the floor number of the indoor range hood which is currently operated;
thirdly, sequencing and judging the lowest floor of the starting;
fourthly, inquiring the opening angle of a group of valve plates corresponding to the current lowest starting floor;
fifthly, calculating the starting rate g by the host;
sixthly, judging whether the opening rate g is within m, n;
if m is less than or equal to g and less than or equal to n, the target flow is unchanged;
if g < m, the target flow is increased;
if g > n, the target flow is adjusted to be low;
and seventhly, adjusting the frequency or gear of the main machine.
Claims (4)
1. The utility model provides a preset angle control method of high-rise building flue check valve, is including installing range hood (1) at different floors, and the air outlet of every range hood (1) all is linked together through respective tobacco pipe (2) and public flue (3) install flue fan (5) in public flue (3), range hood (1) have fan (11), its characterized in that: an intelligent valve (4) capable of detecting the power of the range hood is installed in each smoke pipe (2), the intelligent valve (4) is provided with a check valve plate (41), and the preset angle control method of the intelligent valve comprises the following steps:
firstly, starting a system, starting any two user side range hoods to a certain gear or rotating speed, synchronously opening corresponding check valve plates to a specific angle, closing other valves and range hoods, and starting a flue fan to a certain rotating speed to operate or close;
secondly, acquiring the power of the current range hood through the intelligent valve;
thirdly, sorting the address codes corresponding to the check valve plates according to the power from small to large; closing one of the valves, opening a new valve and adjusting to the same angle;
fourthly, repeating the second step and the third step;
traversing all the check valve plates to finish sequencing;
step six, defaulting that the power of the same gear is in a sequence from low to high of the floors from small to large, and binding the floors and the address codes of the check valve plates;
seventhly, opening the check valve plates of the N layers and the N + i layers to the maximum opening angle, and closing the check valve plates of other floors, wherein i is a positive integer and is more than or equal to 1 and less than or equal to N-N;
comparing the power deviation of the n layer and the n + i layer,
if the deviation exceeds a preset value, reducing the opening angle of the valve plate of the n + i layer;
if the power of the n + i layer is less than the power of the n layer, an error is reported;
if the deviation is smaller than the preset value, entering the step ninthly;
ninthly, recording the opening angle of the valve plate when the lowest starting layer of the n + i layer is n;
d, judging whether the i layer is traversed or not;
2. The preset angle control method of the high-rise building flue check valve according to claim 1, wherein the flue fan (5) constitutes a master machine, and the indoor range hood (1) constitutes a slave machine.
3. The preset angle control method of the high-rise building flue check valve according to claim 2, wherein: the host machine judges the current lowest running layer number and the target flow according to the following steps:
starting any indoor range hood, and awakening a host;
secondly, acquiring the floor number of the indoor range hood which is currently operated;
thirdly, sequencing and judging the lowest floor of the starting;
fourthly, inquiring the opening angle of a group of valve plates corresponding to the current lowest starting floor;
fifthly, calculating the starting rate g by the host;
sixthly, judging whether the opening rate g is within m, n;
if m is less than or equal to g and less than or equal to n, the target flow is unchanged;
if g < m, the target flow is increased;
if g > n, the target flow is adjusted to be low;
and seventhly, adjusting the frequency or gear of the main machine.
4. The preset angle control method of the high-rise building flue check valve according to claim 1, 2 or 3, wherein: and a valve plate control motor (6) for adjusting the opening angle of the check valve plate (41) is installed on the intelligent valve (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811390542.9A CN111207423B (en) | 2018-11-21 | 2018-11-21 | Preset angle control method for flue check valve of high-rise building |
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| CN201811390542.9A CN111207423B (en) | 2018-11-21 | 2018-11-21 | Preset angle control method for flue check valve of high-rise building |
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| CN111207423A CN111207423A (en) | 2020-05-29 |
| CN111207423B true CN111207423B (en) | 2022-03-18 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114508772B (en) * | 2021-12-14 | 2023-04-14 | 宁波方太厨具有限公司 | High-rise noise control method in centralized smoke exhaust system of building |
| CN114607831A (en) * | 2022-03-21 | 2022-06-10 | 杭州老板电器股份有限公司 | Angle control method, angle control device, electronic apparatus, and storage medium |
| CN115143499B (en) * | 2022-06-29 | 2024-06-25 | 杭州老板电器股份有限公司 | Smoke discharging system and control method |
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| EP0422316A1 (en) * | 1989-10-13 | 1991-04-17 | Futurum Ab | Valve for controlling the ventilation flow from a kitchen range hood |
| JPH03191240A (en) * | 1989-12-18 | 1991-08-21 | Matsushita Electric Ind Co Ltd | Exhaust gas treatment device for built-in equipment |
| CN102080443A (en) * | 2010-12-14 | 2011-06-01 | 罗国伟 | Multi-power source adjustable voltage-transforming fire-proof exhaust passage system |
| CN204459320U (en) * | 2014-12-30 | 2015-07-08 | 杭州老板电器股份有限公司 | Electronic control return air check-valve |
| CN106560657A (en) * | 2016-12-30 | 2017-04-12 | 杭州老板电器股份有限公司 | Central oil fume purification system and real-time automatic control mode thereof |
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2018
- 2018-11-21 CN CN201811390542.9A patent/CN111207423B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0422316A1 (en) * | 1989-10-13 | 1991-04-17 | Futurum Ab | Valve for controlling the ventilation flow from a kitchen range hood |
| JPH03191240A (en) * | 1989-12-18 | 1991-08-21 | Matsushita Electric Ind Co Ltd | Exhaust gas treatment device for built-in equipment |
| CN102080443A (en) * | 2010-12-14 | 2011-06-01 | 罗国伟 | Multi-power source adjustable voltage-transforming fire-proof exhaust passage system |
| CN204459320U (en) * | 2014-12-30 | 2015-07-08 | 杭州老板电器股份有限公司 | Electronic control return air check-valve |
| CN106560657A (en) * | 2016-12-30 | 2017-04-12 | 杭州老板电器股份有限公司 | Central oil fume purification system and real-time automatic control mode thereof |
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