CN111207422A - Flow self-adaptive smoke exhaust control method of central flue system - Google Patents

Flow self-adaptive smoke exhaust control method of central flue system Download PDF

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Publication number
CN111207422A
CN111207422A CN201811390520.2A CN201811390520A CN111207422A CN 111207422 A CN111207422 A CN 111207422A CN 201811390520 A CN201811390520 A CN 201811390520A CN 111207422 A CN111207422 A CN 111207422A
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valve plate
flow
angle
valve
range hood
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CN111207422B (en
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何立博
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Ningbo Fotile Kitchen Ware Co Ltd
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Ningbo Fotile Kitchen Ware Co Ltd
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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
    • 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
    • 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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  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)

Abstract

The utility model provides a flow self-adaptation of central flue system control method that discharges fume, central flue system is including installing the range hood in different floors, and the air outlet of every range hood all is linked together through respective tobacco pipe and public flue, installs the flue fan in public flue, and the range hood has the fan, its characterized in that: an intelligent valve capable of detecting the power of the range hood is arranged in each smoke pipe, and the intelligent valve is provided with a check valve plate. 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

Flow self-adaptive smoke exhaust control method of central flue system
Technical Field
The invention relates to a central flue system, in particular to a flow self-adaptive smoke exhaust control method of the central flue system.
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 current method for adjusting the actual flow by utilizing the common flue fan to discharge smoke and the valve plate angle is only used for adjusting the flow at a preset fixed angle, is difficult to adapt to various flue environments, has large calculation workload of CFD (computational fluid dynamics) of an angle aiming at a certain specific flue, is difficult to realize customized installation of each building in the actual environment, and causes large flow deviation of users; 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 flow self-adaptive smoke exhaust control method of a central flue system, wherein the angle of a valve plate can be self-adaptively adjusted according to the installation position and a flue.
The technical scheme adopted by the invention for solving the technical problems is as follows: the flow self-adaptive smoke exhaust control method of the central flue system comprises the range hoods installed on different floors, the air outlet of each range hood is communicated with a common flue through respective smoke pipes, a flue fan is installed in the common flue, and each range hood is provided with the fan, and is characterized in that: 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 installation automatic debugging process of the flow self-adaptive smoke discharging control method comprises the following steps:
①, starting the system, starting the range hood fan of any user to a certain gear or rotating speed, opening the corresponding check valve plate to a specific angle, closing other valve plates and the range hood, and closing the flue fan or operating at a certain rotating speed;
②, acquiring the power of the current range hood through the intelligent valve;
③, closing the current range hood and valve plate, opening another range hood to the same gear, and opening the corresponding valve plate to the same opening angle;
④, acquiring and recording the power of the current range hood through an intelligent valve;
⑤, converting the power into corresponding flow rate through a W-Q curve (relation);
⑥, sorting the flow from small to large;
⑦, repeating ②, ③, ④, ⑤ and ⑥ until all valve plates are traversed to finish sequencing;
⑧, the default flow is from low to high in the sequence of floors, and the floors and the address codes of the valves are bound;
⑨, opening N layers and N + i layers to the maximum valve plate angle, closing other floors, wherein i is more than or equal to 1 and less than or equal to N-N, and i is a positive integer;
⑩, comparing the power deviation of the n layer and the n + i layer,
if the deviation exceeds a preset value, the opening angle of the valve plates of the n +1 layers is reduced;
if the power of the n +1 layer is less than the power of the n layer, an error is reported;
if the deviation is less than the preset value, the step is entered
Figure BDA0001873945510000021
Figure BDA0001873945510000022
Recording the opening angle of a valve plate of the n + i layer when the lowest starting layer is n;
Figure BDA0001873945510000023
judging whether the i layer is traversed or not;
Figure BDA0001873945510000024
and judging whether the traversal of n is completed.
Preferably, the smart valve has a power sensing socket capable of sensing the power of the range hood. Therefore, the range hood socket is inserted into the wall power supply port through the power detection socket of the intelligent valve, and the total power of range hoods of any brands can be detected.
Preferably, the target flow rate Q is presetLIn [ Q ]X,Qd]Within the range, the normal use stage of the flow adaptive smoke discharge control method comprises the following steps:
①, starting the range hood of any user, and detecting the start of the range hood by the intelligent valve;
②, driving a valve plate of the intelligent valve to open to the maximum angle for operation or a preset angle or a last memorized angle;
③, acquiring a target flow and a current valve plate preset angle from a host;
④, updating the valve plate angle according to the preset angle given by the host;
⑤, inquiring the time difference or temperature rise from the last startup, and if the time difference is smaller than a set value, adding the influence relation of the temperature t;
⑥, detecting the current or power of the current range hood;
⑦ through the W-Q relationshipThe influence of the addition temperature t results in the formation of W (Q, t) ═ A (1+ α t) + BQ + CQ2+DQ3And calculating the current actual flow Q of the range hoodmWherein α is the temperature dependence coefficient of the winding resistance;
⑧, judging whether the current actual flow is within the set range of the target flow;
if the current actual flow is within the set range, no adjustment is needed and monitoring is continued;
if the current actual flow is not in the set range, firstly judging whether the current actual flow is larger or smaller,
if smaller, Q is obtainedm＜QXThen go to step ⑨;
if larger, Q is obtainedm>QdGo to step ⑩;
⑨, firstly, judging whether the current valve sheet opening is maximum,
if the maximum value is obtained, feeding back to the host;
if not, then calculating the latest flow measurement value and the target flow lower limit QXOr upper limit QdAccording to the ratio, the valve plate angle is adjusted in different regions according to the corresponding proportional limit value;
⑩, calculating Q directlym/QXAccording to the ratio, the valve plate angle is adjusted in different regions according to the corresponding proportional limit value;
Figure BDA0001873945510000031
driving the valve plate to move to a corresponding opening degree;
Figure BDA0001873945510000032
reading the current or power of the range hood after △ t of stabilization;
Figure BDA0001873945510000033
repeating the steps
Figure BDA0001873945510000034
Until the flow rate is adjusted to the targetWithin the range.
Further preferably, in the step ⑨, the judgment of the partition adjusting valve plate angle according to the corresponding proportional limit value is as follows:
if the current opening degree is maximum, feeding back to the host
If Qm/QXIf h, trying to increase the opening of the valve plate by 3 theta degrees;
if h is less than or equal to Qm/QXThe opening of the valve plate is attempted to be increased by 2 theta degrees when the opening is less than or equal to i;
if i < Qm/QXTrying to increase the opening degree of the valve plate by theta degrees; wherein h and i are preset values, and theta is more than or equal to 0.5 and less than or equal to 5.
Further preferably, in the step ⑩, the judgment of the partition adjusting valve plate angle according to the corresponding proportional limit value is as follows:
if QX/QmIf j, trying to adjust the opening degree of the valve plate to be theta degrees;
j≤QX/Qmadjusting the opening of the valve plate to be 2 theta degrees at most k;
k≤QX/Qmtrying to reduce the opening degree of the valve plate by 3 theta degrees; wherein j and k are preset values, and theta is more than or equal to 0.5 and less than or equal to 5.
As a topological scheme, the flue fan is a booster fan, the flue fan forms a host, and the indoor range hood forms an auxiliary machine.
Under the topological structure, the flow self-adaptive smoke exhaust control method comprises the following steps of adjusting the valve plate angle and the rotating speed of the main engine in the normal use stage:
①, starting any slave computer and waking up the host computer;
②, acquiring the startup number, angle and flow information of the slave;
③, judging whether the valve sheet opening of more than or equal to n1 slave machines is smaller than a preset angle;
if so, reducing the rotating speed of the booster fan;
if not, go to step ④;
④, calculating whether the maximum valve plate opening of the slave is still lower than the target flow,
if yes, judging whether the maximum opening of valve plates of more than or equal to n2 slave machines is still lower than the target flow, if so, reducing the target flow, increasing the rotating speed of the booster fan, and if not, only increasing the rotating speed of the booster fan;
if not, sequencing and judging the lowest floor of the starting;
⑤, on the basis of sequencing and judging the lowest starting floor in the step ④, inquiring the valve plate angle parameter corresponding to the current lowest starting floor;
⑥, calculating the turn-on rate by the host computer;
⑦, determining target flow change in different regions according to the start-up rate;
⑧, correspondingly adjusting the rotation speed of the booster fan according to the target flow change in the step ⑦;
⑨, broadcasting the combination of the target flow and the valve sheet opening which are regulated newly to the slave;
⑩, repeating the steps ② - ⑨, and continuing to monitor and keep the system running.
As another topological structure, one of the range hoods which are started up indoors forms a main machine, and the other range hoods form auxiliary machines indoors.
Under the topological structure, the flow self-adaptive smoke exhaust control method comprises the following steps of adjusting the valve plate angle and the rotating speed of the main engine in the normal use stage:
①, starting any slave computer and waking up the host computer;
②, acquiring the startup number, angle and flow information of the slave;
③, judging whether the valve sheet opening of more than or equal to n1 slave machines is smaller than a preset angle;
if yes, the target flow is increased;
if not, go to step ④;
④, calculating whether the opening of the slave maximum valve plate is still lower than the target flow,
if so, the target flow is adjusted to be small,
if not, sequencing and judging the lowest floor of the starting;
⑤, on the basis of sequencing and judging the lowest starting floor in the step ④, inquiring the valve plate angle parameter corresponding to the current lowest starting floor;
⑥, calculating the turn-on rate by the host computer;
⑦, determining target flow change in different regions according to the start-up rate;
⑧, broadcasting the combination of the target flow and the valve sheet opening which are regulated newly to the slave;
⑨, repeating the steps ② - ⑧, and continuing to monitor and maintain the system operation
Compared with the prior art, the invention has the advantages that: the flow self-adaptive smoke discharge control method of the central flue system detects the input power of indoor machines by using intelligent valve bodies on different floors, realizes self-adaptive installation and adjustment by comparing power feedback adjusting valve plates, records the current adjustment angle, can easily complete the angle adjustment before installation, does not use a preset value for the valve plate angle, but automatically sequences and self-adaptively adjusts the valve plate angle according to the installation position and the flue, and can automatically reconstruct a plurality of valve plate angle schemes according to the current lowest startup floor information.
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 flow chart of an embodiment of the present invention during an installation debugging phase;
FIG. 6 is a flow chart of an embodiment of the present invention during a normal use phase;
FIG. 7 is a flow chart of valve plate angle adjustment control according to the embodiment of the present invention;
FIG. 8 is a schematic diagram of a topology according to an embodiment of the present invention;
FIG. 9 is a flow chart of valve plate angle distribution and host rotational speed adjustment under the topology shown in FIG. 8;
FIG. 10 is a schematic diagram of another topology of an embodiment of the present invention;
fig. 11 is a flow chart of valve plate angle distribution and main engine rotation speed adjustment under the structure shown in fig. 10.
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 and 4, 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 has a fan 11, an intelligent valve 4 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.
As shown in fig. 5, the installation automatic debugging process of the flow adaptive smoke discharge control method includes the following steps:
①, starting the system, starting the range hood fan of any user to a certain gear or rotating speed, opening the corresponding check valve plate to a specific angle, closing other valve plates and the range hood, and closing the flue fan or operating at a certain rotating speed;
②, acquiring the power of the current range hood through the intelligent valve;
③, closing the current range hood and valve plate, opening another range hood to the same gear, and opening the corresponding valve plate to the same opening angle;
④, acquiring and recording the power of the current range hood through an intelligent valve;
⑤, converting the power into corresponding flow rate through a W-Q curve (relation);
⑥, sorting the flow from small to large;
⑦, repeating ②, ③, ④, ⑤ and ⑥ until all valve plates are traversed to finish sequencing;
⑧, the default flow is from low to high in the sequence of floors, and the floors and the address codes of the valves are bound;
⑨, opening N layers and N + i layers to the maximum valve plate angle, closing other floors, wherein i is more than or equal to 1 and less than or equal to N-N, and i is a positive integer;
⑩, comparing the power deviation of the n layer and the n + i layer,
if the deviation exceeds a preset value, the opening angle of the valve plates of the n +1 layers is reduced;
if the power of the n +1 layer is less than the power of the n layer, an error is reported;
if the deviation is less than the preset value, the step is entered
Figure BDA0001873945510000061
Figure BDA0001873945510000062
Recording the opening angle of a valve plate of the n + i layer when the lowest starting layer is n;
Figure BDA0001873945510000063
judging whether the i layer is traversed or not;
Figure BDA0001873945510000064
and judging whether the traversal of n is completed.
As shown in FIG. 6, the target flow rate Q is presetLIn [ Q ]X,Qd]Within the range, the normal use stage of the flow adaptive smoke discharge control method comprises the following steps:
①, starting the range hood of any user, and detecting the start of the range hood by the intelligent valve;
②, driving a valve plate of the intelligent valve to open to the maximum angle for operation or a preset angle or a last memorized angle;
③, acquiring a target flow and a current valve plate preset angle from a host;
④, updating the valve plate angle according to the preset angle given by the host;
⑤, inquiring the time difference or temperature rise from the last startup, and if the time difference is smaller than a set value, adding the influence relation of the temperature t;
⑥, detecting the current or power of the current range hood;
⑦ under the influence of the addition temperature t by the W-Q relationship, to form W (Q, t) ═ A (1+ α t) + BQ + CQ2+DQ3And calculating the current actual flow Q of the range hoodmWherein α is the temperature dependence coefficient of the winding resistance;
⑧, judging whether the current actual flow is within the set range of the target flow;
if the current actual flow is within the set range, no adjustment is needed and monitoring is continued;
if the current actual flow is not in the set range, firstly judging whether the current actual flow is larger or smaller,
if smaller, Q is obtainedm＜QXThen go to step ⑨;
if larger, Q is obtainedm>QdGo to step ⑩;
⑨, firstly, judging whether the current valve sheet opening is maximum,
if the maximum value is obtained, feeding back to the host;
if not, then calculating the latest flow measurement value and the target flow lower limit QXOr upper limit QdAccording to the ratio, the valve plate angle is adjusted in different regions according to the corresponding proportional limit value;
⑩, calculating Q directlym/QXAccording to the ratio, the valve plate angle is adjusted in different regions according to the corresponding proportional limit value;
Figure BDA0001873945510000071
driving the valve plate to move to a corresponding opening degree;
Figure BDA0001873945510000072
reading the current or power of the range hood after △ t of stabilization;
Figure BDA0001873945510000073
repeating the steps
Figure BDA0001873945510000074
Until the flow rate is adjusted to be within the target range.
In the step ⑨, the judgment of the interval adjustment valve plate angle according to the corresponding proportional limit value is as follows:
if the current opening degree is maximum, feeding back to the host
If Qm/QXIf h, trying to increase the opening of the valve plate by 3 theta degrees;
if h is less than or equal to Qm/QXThe opening of the valve plate is attempted to be increased by 2 theta degrees when the opening is less than or equal to i;
if i < Qm/QXTrying to increase the opening degree of the valve plate by theta degrees; wherein h and i are preset values, and theta is more than or equal to 0.5 and less than or equal to 5.
The judgment of the interval adjustment of the valve plate angle according to the corresponding proportional limit in the step ⑩ is as follows:
if QX/QmIf j, trying to adjust the opening degree of the valve plate to be theta degrees;
j≤QX/Qmadjusting the opening of the valve plate to be 2 theta degrees at most k;
k≤QX/Qmtrying to reduce the opening degree of the valve plate by 3 theta degrees; wherein j and k are preset values, and theta is more than or equal to 0.5 and less than or equal to 5.
As shown in fig. 7, after the power detection module detects the power data, the data analysis unit analyzes the power data, and drives the motor to rotate through the motor driving module, so as to adjust the valve plate angle of the adaptive electric valve.
As shown in fig. 8 and 9, the topology of the system is: the flue fan 5 forms a main machine, and the indoor range hood 1 forms a slave machine.
Under the topological structure, the flow self-adaptive smoke exhaust control method comprises the following steps of adjusting the valve plate angle and the rotating speed of the host machine in the normal use stage:
①, starting any slave computer and waking up the host computer;
②, acquiring the startup number, angle and flow information of the slave;
③, judging whether the valve sheet opening of more than or equal to n1 slave machines is smaller than a preset angle;
if so, reducing the rotating speed of the booster fan;
if not, go to step ④;
④, calculating whether the maximum valve plate opening of the slave is still lower than the target flow,
if yes, judging whether the maximum opening of valve plates of more than or equal to n2 slave machines is still lower than the target flow, if so, reducing the target flow, increasing the rotating speed of the booster fan, and if not, only increasing the rotating speed of the booster fan;
if not, sequencing and judging the lowest floor of the starting;
⑤, on the basis of sequencing and judging the lowest starting floor in the step ④, inquiring the valve plate angle parameter corresponding to the current lowest starting floor;
⑥, calculating the turn-on rate by the host computer;
⑦, determining target flow change in different regions according to the start-up rate;
⑧, correspondingly adjusting the rotation speed of the booster fan according to the target flow change in the step ⑦;
⑨, broadcasting the combination of the target flow and the valve sheet opening which are regulated newly to the slave;
⑩, repeating the steps ② - ⑨, and continuing to monitor and keep the system running.
As shown in fig. 10 and 11, the topology is: one of the range hoods 1 which are started indoors forms a main machine, and the other range hoods 1 in the room form auxiliary machines.
Under the topological structure, the flow self-adaptive smoke exhaust control method comprises the following steps of adjusting the valve plate angle and the rotating speed of the host machine in the normal use stage:
①, starting any slave computer and waking up the host computer;
②, acquiring the startup number, angle and flow information of the slave;
③, judging whether the valve sheet opening of more than or equal to n1 slave machines is smaller than a preset angle;
if yes, the target flow is increased;
if not, go to step ④;
④, calculating whether the opening of the slave maximum valve plate is still lower than the target flow,
if so, the target flow is adjusted to be small,
if not, sequencing and judging the lowest floor of the starting;
⑤, on the basis of sequencing and judging the lowest starting floor in the step ④, inquiring the valve plate angle parameter corresponding to the current lowest starting floor;
⑥, calculating the turn-on rate by the host computer;
⑦, determining target flow change in different regions according to the start-up rate;
⑧, broadcasting the combination of the target flow and the valve sheet opening which are regulated newly to the slave;
⑨, repeating the steps ② - ⑧, and continuing to monitor and keep the system running.

Claims (9)

1. The utility model provides a flow self-adaptation of central flue system control method that discharges fume, central flue system is including installing range hood (1) at different floors, and the air outlet of every range hood (1) all is linked together with public flue (3) through respective tobacco pipe (2), installs 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 installation automatic debugging process of the flow self-adaptive smoke discharging control method comprises the following steps:
①, starting the system, starting the range hood fan of any user to a certain gear or rotating speed, opening the corresponding check valve plate to a specific angle, closing other valve plates and the range hood, and closing the flue fan or operating at a certain rotating speed;
②, acquiring the power of the current range hood through the intelligent valve;
③, closing the current range hood and valve plate, opening another range hood to the same gear, and opening the corresponding valve plate to the same opening angle;
④, acquiring and recording the power of the current range hood through an intelligent valve;
⑤, converting the power into corresponding flow rate through a W-Q curve (relation);
⑥, sorting the flow from small to large;
⑦, repeating ②, ③, ④, ⑤ and ⑥ until all valve plates are traversed to finish sequencing;
⑧, the default flow is from low to high in the sequence of floors, and the floors and the address codes of the valves are bound;
⑨, opening N layers and N + i layers to the maximum valve plate angle, closing other floors, wherein i is more than or equal to 1 and less than or equal to N-N, and i is a positive integer;
⑩, comparing the power deviation of the n layer and the n + i layer,
if the deviation exceeds a preset value, the opening angle of the valve plates of the n +1 layers is reduced;
if the power of the n +1 layer is less than the power of the n layer, an error is reported;
if the deviation is less than the preset value, the step is entered
Figure FDA0001873945500000011
Figure FDA0001873945500000012
Recording the opening angle of a valve plate of the n + i layer when the lowest starting layer is n;
Figure FDA0001873945500000013
judging whether the i layer is traversed or not;
Figure FDA0001873945500000014
and judging whether the traversal of n is completed.
2. The flow adaptive flue gas control method of a central flue system according to claim 1, comprising: the intelligent valve is provided with a power detection socket capable of detecting the power of the range hood.
3. The flow adaptive smoke exhaust control method of a central flue system according to claim 1, wherein a preset target flow Q is setLIn [ Q ]X,Qd]Within the range, the normal use stage of the flow adaptive smoke discharge control method comprises the following steps:
①, starting the range hood of any user, and detecting the start of the range hood by the intelligent valve;
②, driving a valve plate of the intelligent valve to open to the maximum angle for operation or a preset angle or a last memorized angle;
③, acquiring a target flow and a current valve plate preset angle from a host;
④, updating the valve plate angle according to the preset angle given by the host;
⑤, inquiring the time difference or temperature rise from the last startup, and if the time difference is smaller than a set value, adding the influence relation of the temperature t;
⑥, detecting the current or power of the current range hood;
⑦ under the influence of the addition temperature t by the W-Q relationship, to form W (Q, t) ═ A (1+ α t) + BQ + CQ2+DQ3And calculating the current actual flow Q of the range hoodmWherein α is the temperature dependence coefficient of the winding resistance;
⑧, judging whether the current actual flow is within the set range of the target flow;
if the current actual flow is within the set range, no adjustment is needed and monitoring is continued;
if the current actual flow is not in the set range, firstly judging whether the current actual flow is larger or smaller,
if smaller, Q is obtainedm＜QXThen go to step ⑨;
if larger, Q is obtainedm>QdGo to step ⑩;
⑨, firstly, judging whether the current valve sheet opening is maximum,
if the maximum value is obtained, feeding back to the host;
if not, then calculating the latest flow measurement value and the target flow lower limit QXOr upper limit QdAccording to the ratio, the valve plate angle is adjusted in different regions according to the corresponding proportional limit value;
⑩, calculating Q directlym/QXAccording to the ratio, the valve plate angle is adjusted in different regions according to the corresponding proportional limit value;
Figure FDA0001873945500000021
driving the valve plate to move to a corresponding opening degree;
Figure FDA0001873945500000022
reading the current or power of the range hood after △ t of stabilization;
Figure FDA0001873945500000023
repeating the steps
Figure FDA0001873945500000024
Until the flow rate is adjusted to be within the target range.
4. The method according to claim 3, wherein the step ⑨ comprises the following steps of:
if the current opening degree is maximum, feeding back to the host
If Qm/QXIf h, trying to increase the opening of the valve plate by 3 theta degrees;
if h is less than or equal to Qm/QXThe opening of the valve plate is attempted to be increased by 2 theta degrees when the opening is less than or equal to i;
if i < Qm/QXTrying to increase the opening degree of the valve plate by theta degrees; wherein h and i are preset values, and theta is more than or equal to 0.5 and less than or equal to 5.
5. The method according to claim 3, wherein the step ⑩ comprises the following steps of:
if QX/QmIf j, trying to adjust the opening degree of the valve plate to be theta degrees;
j≤QX/Qmadjusting the opening of the valve plate to be 2 theta degrees at most k;
k≤QX/Qmtrying to reduce the opening degree of the valve plate by 3 theta degrees; wherein j and k are preset values, and theta is more than or equal to 0.5 and less than or equal to 5.
6. The flow adaptive smoke exhaust control method of the central flue system according to claim 3, wherein the flue fan (5) is a booster fan, the flue fan (5) constitutes a master machine, and the indoor range hood (1) constitutes a slave machine.
7. The flow adaptive smoke exhaust control method of the central flue system according to claim 6, wherein the adjustment process of the valve plate angle and the main engine rotation speed in the normal use stage is as follows:
①, starting any slave computer and waking up the host computer;
②, acquiring the startup number, angle and flow information of the slave;
③, judging whether the valve sheet opening of more than or equal to n1 slave machines is smaller than a preset angle;
if so, reducing the rotating speed of the booster fan;
if not, go to step ④;
④, calculating whether the maximum valve plate opening of the slave is still lower than the target flow,
if yes, judging whether the maximum opening of valve plates of more than or equal to n2 slave machines is still lower than the target flow, if so, reducing the target flow, increasing the rotating speed of the booster fan, and if not, only increasing the rotating speed of the booster fan;
if not, sequencing and judging the lowest floor of the starting;
⑤, on the basis of sequencing and judging the lowest starting floor in the step ④, inquiring the valve plate angle parameter corresponding to the current lowest starting floor;
⑥, calculating the turn-on rate by the host computer;
⑦, determining target flow change in different regions according to the start-up rate;
⑧, correspondingly adjusting the rotation speed of the booster fan according to the target flow change in the step ⑦;
⑨, broadcasting the combination of the target flow and the valve sheet opening which are regulated newly to the slave;
⑩, repeating the steps ② - ⑨, and continuing to monitor and keep the system running.
8. The flow adaptive smoke exhaust control method of a central flue system according to claim 3, characterized in that: one of the range hoods (1) which are started indoors forms a main machine, and the other range hoods (1) which are started indoors form a slave machine.
9. The flow adaptive smoke exhaust control method of the central flue system according to claim 8, wherein the adjustment process of the valve plate angle and the main engine rotation speed in the normal use stage is as follows:
①, starting any slave computer and waking up the host computer;
②, acquiring the startup number, angle and flow information of the slave;
③, judging whether the valve sheet opening of more than or equal to n1 slave machines is smaller than a preset angle;
if yes, the target flow is increased;
if not, go to step ④;
④, calculating whether the opening of the slave maximum valve plate is still lower than the target flow,
if so, the target flow is adjusted to be small,
if not, sequencing and judging the lowest floor of the starting;
⑤, on the basis of sequencing and judging the lowest starting floor in the step ④, inquiring the valve plate angle parameter corresponding to the current lowest starting floor;
⑥, calculating the turn-on rate by the host computer;
⑦, determining target flow change in different regions according to the start-up rate;
⑧, broadcasting the combination of the target flow and the valve sheet opening which are regulated newly to the slave;
⑨, repeating the steps ② - ⑧, and continuing to monitor and keep the system running.
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Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE500073C2 (en) * 1992-01-21 1994-04-11 Futurum Ab Ventilation system with cooker hood
BE1008796A6 (en) * 1994-04-12 1996-08-06 Put Peter Device for reducing the dirt created by fumes release during preparation offood by apparatus on the table
DE10103405A1 (en) * 2001-01-09 2002-07-18 Thyssenkrupp Hiserv Gmbh Suction device for a kitchen arrangement, kitchen arrangement and method for extracting vapors and odors
CN102589025A (en) * 2012-02-17 2012-07-18 宁波方太厨具有限公司 Fan speed adaptive regulation device of range hood and control method thereof
CN103353136A (en) * 2013-07-02 2013-10-16 德意电器股份有限公司 Range hood with air regulation function, and control system and control method thereof
CN104865991A (en) * 2014-11-21 2015-08-26 苏州工业园区设计研究院股份有限公司 Serviced apartment concentrated oil-smoke emission control system and control method thereof
CN106524265A (en) * 2016-12-28 2017-03-22 同济大学 Centralized flue variable air volume device and variable air volume control method for high-rise residence kitchens
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
CN106703368A (en) * 2016-12-22 2017-05-24 同济大学 Even exhaust system device for smoke shaft of kitchen of high-rise residence and exhaust method
CN206600849U (en) * 2016-12-28 2017-10-31 同济大学 Kitchen in High Rise Apartment aggregate with outliers variable air rate device
CN206636127U (en) * 2016-12-22 2017-11-14 同济大学 A kind of uniform exhaust system device of Kitchen in High Rise Apartment smoke shaft
CN107388311A (en) * 2017-07-20 2017-11-24 杭州老板电器股份有限公司 Fume extractor and smoke evacuation air quantity control method
CN206755282U (en) * 2017-01-13 2017-12-15 同济大学 Kitchen in High Rise Apartment aggregate with outliers combined power system
CN107975842A (en) * 2017-05-27 2018-05-01 宁波方太厨具有限公司 Common duct smoke evacuation system and control method
JP6374576B1 (en) * 2017-06-15 2018-08-15 キュウーハン株式会社 Oven equipment
CN108800314A (en) * 2018-04-17 2018-11-13 无锡欧龙德科技有限公司 Pressure adaptive energy-saving and noise-reducing air conditioning system with variable and its control method

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE500073C2 (en) * 1992-01-21 1994-04-11 Futurum Ab Ventilation system with cooker hood
BE1008796A6 (en) * 1994-04-12 1996-08-06 Put Peter Device for reducing the dirt created by fumes release during preparation offood by apparatus on the table
DE10103405A1 (en) * 2001-01-09 2002-07-18 Thyssenkrupp Hiserv Gmbh Suction device for a kitchen arrangement, kitchen arrangement and method for extracting vapors and odors
CN102589025A (en) * 2012-02-17 2012-07-18 宁波方太厨具有限公司 Fan speed adaptive regulation device of range hood and control method thereof
CN103353136A (en) * 2013-07-02 2013-10-16 德意电器股份有限公司 Range hood with air regulation function, and control system and control method thereof
CN104865991A (en) * 2014-11-21 2015-08-26 苏州工业园区设计研究院股份有限公司 Serviced apartment concentrated oil-smoke emission control system and control method thereof
CN106703368A (en) * 2016-12-22 2017-05-24 同济大学 Even exhaust system device for smoke shaft of kitchen of high-rise residence and exhaust method
CN206636127U (en) * 2016-12-22 2017-11-14 同济大学 A kind of uniform exhaust system device of Kitchen in High Rise Apartment smoke shaft
CN106524265A (en) * 2016-12-28 2017-03-22 同济大学 Centralized flue variable air volume device and variable air volume control method for high-rise residence kitchens
CN206600849U (en) * 2016-12-28 2017-10-31 同济大学 Kitchen in High Rise Apartment aggregate with outliers variable air rate device
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
CN206755282U (en) * 2017-01-13 2017-12-15 同济大学 Kitchen in High Rise Apartment aggregate with outliers combined power system
CN107975842A (en) * 2017-05-27 2018-05-01 宁波方太厨具有限公司 Common duct smoke evacuation system and control method
JP6374576B1 (en) * 2017-06-15 2018-08-15 キュウーハン株式会社 Oven equipment
CN107388311A (en) * 2017-07-20 2017-11-24 杭州老板电器股份有限公司 Fume extractor and smoke evacuation air quantity control method
CN108800314A (en) * 2018-04-17 2018-11-13 无锡欧龙德科技有限公司 Pressure adaptive energy-saving and noise-reducing air conditioning system with variable and its control method

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