CN112594747A - Control method of smoke collection and exhaust type smoke machine and smoke collection and exhaust type smoke machine system - Google Patents
Control method of smoke collection and exhaust type smoke machine and smoke collection and exhaust type smoke machine system Download PDFInfo
- Publication number
- CN112594747A CN112594747A CN202011437572.8A CN202011437572A CN112594747A CN 112594747 A CN112594747 A CN 112594747A CN 202011437572 A CN202011437572 A CN 202011437572A CN 112594747 A CN112594747 A CN 112594747A
- Authority
- CN
- China
- Prior art keywords
- static pressure
- value
- smoke
- pressure value
- air volume
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000779 smoke Substances 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000003068 static effect Effects 0.000 claims abstract description 102
- 238000007599 discharging Methods 0.000 claims description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000003546 flue gas Substances 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 2
- 230000006854 communication Effects 0.000 abstract description 11
- 238000004891 communication Methods 0.000 abstract description 10
- 235000019504 cigarettes Nutrition 0.000 description 5
- 239000006096 absorbing agent Substances 0.000 description 4
- 239000006233 lamp black Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention provides a control method of a centralized-type range hood, which comprises the following steps: obtaining a static pressure threshold value according to the corresponding relation between the preset air volume value and the static pressure value; detecting a real-time static pressure value, and controlling the opening degree of a valve of the electric valve according to the relation between the real-time static pressure value and the static pressure threshold value; the centralized exhaust type smoke machine system using the method can enable smoke exhaust to be smoother, and can control air volume without multiple communications, so that air volume of each floor is more uniform.
Description
Technical Field
The invention relates to the field of central flues, in particular to a control method of a smoke collecting and exhausting type smoke machine and a smoke collecting and exhausting type smoke machine system.
Background
In recent years, a building public flue oil smoke centralized discharge system is gradually applied to floors where users are located, extra power is generated by a fan arranged at the top end of a public flue, and the air volume of each floor is uniformly distributed by matching with a range hood of each user, so that the purposes of smooth smoke discharge and low-noise use are achieved; however, in the actual application process, the range hood of each household has different capabilities, and the backpressure of the common flue of different floors is different, so that the air volume of each floor is uniformly distributed, which is an important problem faced by the range hood collection and discharge system.
Disclosure of Invention
The invention aims to provide a control method of a smoke collecting and exhausting type smoke machine and a smoke collecting and exhausting type smoke machine system, which can overcome the defect of uneven air volume distribution of each floor.
In order to achieve the above purpose, the solution of the invention is as follows:
a control method of a centralized-type range hood comprises the following steps:
obtaining a static pressure threshold value according to the corresponding relation between the preset air volume value and the static pressure value;
and detecting a real-time static pressure value, and controlling the opening of the valve of the electric valve according to the relation between the real-time static pressure value and the static pressure threshold value.
Further, the static pressure threshold value is obtained according to a preset corresponding relation between a preset air volume value and a static pressure value, and the method comprises the following steps:
acquiring a floor where a smoke machine is located, and acquiring a corresponding relation between a preset air volume value and a static pressure value of the floor;
and obtaining the static pressure threshold value according to a preset corresponding relation between a preset air volume value and a static pressure value and a corresponding relation between a preset air volume value and the static pressure value of the floor.
Further, the preset air volume value is related to the static pressure value by an inverse proportionality coefficient.
Further, the method for controlling the valve opening of the electric valve according to the relation between the real-time static pressure value and the static pressure threshold value comprises the following steps:
if the static pressure value detected in real time is smaller than the static pressure threshold value, adjusting the opening degree of the electric valve to be smaller;
if the static pressure value detected in real time is equal to the static pressure threshold value, maintaining the valve opening of the electric valve;
and if the static pressure value detected in real time is larger than the static pressure threshold value, adjusting the opening degree of the electric valve to increase.
Further, according to the relationship between the preset air volume value and the static pressure value, the method comprises the following steps:
and controlling the power of the fan according to the relation between the preset air volume value and the static pressure value and the opening rate of the range hood.
The smoke collecting and discharging type smoke machine system applied to any one control method comprises smoke machines arranged on different floors, wherein an air outlet of each smoke machine is communicated with a common flue through a smoke pipe, an electric valve is arranged in each smoke pipe and comprises a valve, a fan is arranged at the common flue, and the smoke collecting and discharging type smoke machine system further comprises a main control system and an electric valve control system.
Further, the electric valve control system includes:
the pressure sensor is used for detecting a static pressure value of a flue outlet of the range hood;
a wind speed sensor for detecting a flow rate of air passing through the electric valve;
the controller is communicated with the main control system and controls the running state of the electric valve according to the feedback information of the main control system;
further, the electric valve further includes an angle sensor for detecting an offset angle of the valve and transmitting the detected offset angle to the controller.
Further, the electrically controlled valve system further comprises:
and the fire prevention valve is used for preventing the flue gas in the public flue from flowing backwards.
Further, a master control system comprising:
the fan is used for allocating the flow of the public flue;
and the main controller is used for controlling the power of the fan by communicating with the controller.
After the technical scheme is adopted, a reasonable static pressure threshold value is obtained through the corresponding relation between the preset air volume value and the static pressure value, the real-time static pressure value of each range hood is measured through the electric valve control system arranged on each range hood, the valve opening in the electric valve control system is controlled through the detected real-time static pressure value and the relation between the detected real-time static pressure value and the static pressure threshold value, and therefore the air volume distribution of each floor is more uniform, and the air exhaust is smoother.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a control method for a centrally-arranged range hood according to embodiment 1 of the present invention;
fig. 2 is a graph illustrating a control method of a centrally-arranged range hood according to embodiment 1 of the present invention;
fig. 3 is a block diagram of a cluster-type range hood system according to embodiment 2 of the present invention;
fig. 4 is a structural diagram of a centralized range type cigarette making machine system according to embodiment 2 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
a control method of a centralized-type range hood comprises the following steps:
referring to fig. 1, S1, obtaining a static pressure threshold according to a corresponding relationship between a preset air volume value and a static pressure value; in the embodiment, by drawing a P-Q curve according to the corresponding relationship between the preset air volume value and the static pressure value of each range hood 1, each electric valve control system 6 collects the corresponding P-Q curve to obtain the relationship between the static pressure at the common flue 3 of the range hood 1 and the change of the air volume, each P-Q curve corresponds to a downward-concave parabola, and specifically, the discharge static pressure at the common flue 3 of the range hood 1 is smaller as the air volume Q increases; simultaneously, because electric valve control system 6 links to each other with the main control system 5 of fan, electric valve control system 6 can be collected the P-Q curve that corresponds separately to main control system 5, store and overall planning and operation, the cigarette machine accurate matching of host computer and each floor has been avoided, and the problem of real-time communication is needed, only need collect the P-Q curve of respective cigarette machine department by electric valve control system 6, then transmit it to main control system 5 and overall planning, real-time communication has been avoided, and the problem of error easily takes place, through the representation of curve, the communication is more timely, it is more accurate.
Further, the static pressure threshold value is obtained according to a preset corresponding relation between a preset air volume value and a static pressure value, and the method comprises the following steps:
referring to fig. 1 and 2, in step S11, a floor where a cigarette machine is located is obtained, and a corresponding relationship between a preset air volume value and a static pressure value of the floor is obtained; specifically, in this embodiment, the corresponding relationship between the low floor and the high floor is obtained, for example, curve a represents the low floor, and curve B represents the high floor; the low-floor curve a is a resistance curve at the low-floor common flue 3, the high-floor curve B is a resistance curve at the high-floor common flue 3, the resistance is increased along with the increase of the air volume, the static pressure at the position is higher, when the air volume of the low-floor curve a is 0, the static pressure at the low floor is higher than that of the high floor, the curve a and the curve B are parabolas with upward openings, and the P-Q curve, the curve a and the curve B are in the first quadrant.
For the drawing of the P-Q curve, in the embodiment, the drawing of the P-Q curve of the cigarette machine is carried out by controlling the opening degree of the valve 41 of the electric valve 4; specifically, the opening degree of a valve 41 of the electric valve 4 is from 0 to 90 degrees, the smoke air volume passing through the valve 41 is sequentially calculated, when the opening degree is 0 degree, the channel is blocked, the static pressure is maximum when the range hood 1 runs, and the air volume of a fan is minimum; when the temperature is 90 degrees, the smoke exhaust ventilator 1 is completely opened, the static pressure is minimum and the air volume is maximum when the smoke exhaust ventilator runs; in the starting process of the range hood 1, the opening degree of the valve 41 of the electric valve 4 is firstly adjusted, the values of the pressure sensor 61 at different angles are recorded to obtain a static pressure value P, and the wind speed values V at different angles are recorded, and the product of the wind speed and the area is obtained to obtain the wind quantity Q.
The effective ventilation area relationship is: q ═ V × SIs effective；SIs effective＝S0*(1-cosθ)；S0The valve 41 may be circular or square for the area of the valve 41 of the electric valve 4, the shape of the valve 41 of the electric valve 4 is not limited, and θ is mainly the angle of rotation of the valve 41 of the electric valve 4. The measurement method is more accurate.
And S12, obtaining the static pressure threshold value according to the preset corresponding relation between the preset air volume value and the static pressure value and the corresponding relation between the preset air volume value and the static pressure value of the floor.
As shown in fig. 2, the curve a of the low floor and the curve B of the high floor have an intersection point with the P-Q curve of the range hood, and the intersection point corresponds to an ideal state of using the range hood 1 on the low floor, that is, an optimal air volume and an optimal static pressure value, so that the range hood 1 can smoothly discharge smoke, and an area defined by the curve a, the curve B and the P-Q curve is a resistance relation corresponding to the middle floor, that is, an optimal air volume and an optimal static pressure value corresponding to the range hood 1 on the middle floor are located between the two intersection points. Through the two curves, the communication time of the electric valve control system 6 and the main control system 5 is reduced, so that the communication error is avoided, and the change of the range hood 1 on each floor can be controlled in real time.
Referring to fig. 1, S2, detecting a real-time static pressure value, and controlling the opening of the valve 41 of the electric valve 4 according to the relationship between the real-time static pressure value and the static pressure threshold value; carry out the communication through electric valve control system 6 and main control system 5, gather the air volume of each lampblack absorber 1 of each floor and the relation curve of static pressure and collect, and through Wi F i or bluetooth or adopt local area network etc. but not limited to this kind of mode to carry out the communication with main control system 5 again, transmit to main control system 5 and store, the overall planning, when the parameter of needs regulation lampblack absorber 1, needn't rethread electric valve control system 6 and main control system 5 communication, only need take value according to the P-Q curve of the lampblack absorber 1 who stores, just can reach the static pressure and the air volume that are fit for the emission of this floor lampblack absorber 1.
Referring to fig. 2, further, the preset air volume value and the static pressure value are related by an inverse proportionality coefficient, that is, a P-Q curve is a parabola with a downward opening, and the static pressure value at the common flue 3 corresponding to the smoke exhaust pipe 2 of the range hood 1 is gradually reduced along with the gradual increase of the air volume of the range hood 1.
S21, further, controlling the opening of the valve 41 of the electric valve 4 according to the relationship between the real-time static pressure value and the static pressure threshold value, including the following steps:
if the static pressure value detected in real time is smaller than the static pressure threshold value, adjusting the opening degree of a valve 41 of the electric valve 4 to be smaller; that is, if the detected static pressure value of the range hood 1 is smaller than the static pressure value of the intersection point of the floor and the P-Q curve of the range hood 1, the corresponding air volume value is larger than the air volume value of the intersection point, so that the electric valve control system 6 needs to adjust the opening degree of the valve 41 of the electric valve 4, that is, the opening degree of the valve 41 of the electric valve 4 of the range hood 1 is reduced, the passing flow rate of the flue gas is reduced, and the static pressure value is increased to achieve stable flue gas discharge.
If the static pressure value detected in real time is equal to the static pressure threshold value, maintaining the opening degree of a valve 41 of the electric valve 4; namely, when the detected static pressure value of the range hood 1 is equal to the static pressure value of the intersection point of the floor and the P-Q curve of the range hood 1, namely the intersection point, the electric valve control system 6 maintains the opening degree of the valve 41 of the electric valve 4, and the stable exhaust of smoke is achieved.
If the static pressure value detected in real time is larger than the static pressure threshold value, adjusting the opening degree of a valve 41 of the electric valve 4 to be smaller; namely, the detected static pressure value of the range hood 1 is greater than the static pressure value of the intersection point of the floor and the P-Q curve of the range hood 1, the air volume needs to be increased, so that the optimal air volume and static pressure value are achieved, and the smoke emission is smoother.
Further, according to the relationship between the preset air volume value and the static pressure value, the method comprises the following steps:
and S3, controlling the power of the fan according to the relation between the preset air quantity value and the static pressure value and the starting rate of the range hood, and controlling the fan to output a reasonable power value by the main controller 63 system according to the starting number of the range hoods 1 on each floor and the P-Q curve of each range hood 1.
The performance parameters of each range hood 1 detected by each electric valve control system 6 are P-Q curves, the performance parameters are transmitted to the main control system 5 to be planned and operated, the follow-up real-time communication transmission data between the electric valve control system 6 and the main control system 5 is not needed, the whole communication process is reduced, a reasonable power value is output by the fan according to the performance parameters and the starting rate of each floor range hood 1, each electric valve 4 is adjusted to an ideal angle, the electric valve 4 and the range hood 1 on each floor reach the optimal state, namely, the air volume and the static pressure accord with the optimal value as much as possible, and the smoke discharge is smoother.
Example 2:
referring to fig. 3 and 4, a smoke collection and exhaust type smoke ventilator system applied to any one of the above control methods comprises smoke ventilators 1 installed on different floors, an air outlet of each smoke ventilator 1 is communicated with a common flue through a respective smoke exhaust pipe 2, an electric valve 4 is installed in each smoke exhaust pipe, each electric valve 4 comprises a valve 41, and a fan is arranged at the common flue, namely a top floor, and is mainly used for adjusting the air volume of each floor; in addition, the range hood further comprises a main control system 5 and an electric valve control system 6, wherein in the starting state of the range hood, the main control system 5 is communicated with the electric valve control system 6 to obtain the starting state and performance parameters of the range hood 1 of the whole building, and the opening degree of the valve 41 and the power of the fan are controlled according to the starting state and the performance parameters so that the air volume is reasonably distributed.
As shown in fig. 4, further, the electric valve control system 6 includes:
the pressure sensor 61 is arranged in the smoke exhaust pipe 2 and used for detecting the static pressure value of the smoke outlet of the smoke machine;
and an air velocity sensor 62 provided in the smoke exhaust pipe 2 for detecting the flow velocity of air passing through the motor-operated valve 4, and the air volume passing through the motor-operated valve 4 can be obtained by the detected flow velocity and the inclination angle of the valve 41 of the motor-operated valve 4.
A controller 63 for controlling the operation state of the electrically operated valve 4 according to feedback information from the main control system 5 by communicating with the main control system 5;
the electric valve 4 is configured to receive the adjustment information from the controller 63 and adjust the opening degree of the valve 41.
Further, the electric valve 4 further includes an angle sensor for detecting an offset angle of the valve 41 and transmitting the offset angle to the controller 63, and the controller 63 calculates the air volume value by the offset angle.
Further, the electrically controlled valve system further comprises:
and the fire damper 64 is arranged at the joint of the smoke exhaust pipe 2 and the public flue and is mainly used for preventing the smoke in the public flue 3 from flowing backwards.
Further, the main control system 5 includes:
the fan is used for allocating the flow of the public flue 3;
and a main controller for controlling the power of the fan by communicating with the controller 63.
The present invention is not limited to the above preferred embodiments, and any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A control method of a centralized-type range hood is characterized by comprising the following steps:
obtaining a static pressure threshold value according to the corresponding relation between the preset air volume value and the static pressure value;
and detecting a real-time static pressure value, and controlling the opening of the valve of the electric valve according to the relation between the real-time static pressure value and the static pressure threshold value.
2. The method for controlling a cluster-type range hood according to claim 1, wherein the static pressure threshold is obtained according to a preset corresponding relationship between a preset air volume value and a static pressure value, and comprises the following steps:
acquiring a floor where a smoke machine is located, and acquiring a corresponding relation between a preset air volume value and a static pressure value of the floor;
and obtaining the static pressure threshold value according to a preset corresponding relation between a preset air volume value and a static pressure value and a corresponding relation between a preset air volume value and the static pressure value of the floor.
3. The method as claimed in claim 2, wherein the predetermined air volume value is related to the static pressure value by an inverse proportionality coefficient.
4. The method for controlling a cluster type range hood according to claim 3, wherein the opening degree of the electric valve is controlled according to the relation between the real-time static pressure value and the static pressure threshold value, and the method comprises the following steps:
if the static pressure value detected in real time is smaller than the static pressure threshold value, adjusting the opening degree of the electric valve to be smaller;
if the static pressure value detected in real time is equal to the static pressure threshold value, maintaining the valve opening of the electric valve;
and if the static pressure value detected in real time is larger than the static pressure threshold value, adjusting the opening degree of the electric valve to increase.
5. The method for controlling a cluster type range hood according to claim 4, further comprising the following steps according to the relationship between the preset air volume value and the static pressure value:
and controlling the power of the fan according to the relation between the preset air volume value and the static pressure value and the opening rate of the range hood.
6. A smoke collecting and discharging type smoke machine system applied to the control method of any one of claims 1 to 5, which comprises smoke machines arranged on different floors, wherein the air outlet of each smoke machine is communicated with a common flue through a smoke pipe of each smoke machine, an electric valve is arranged in each smoke pipe and comprises a valve, and a fan is arranged at the common flue.
7. A smoke collecting and discharging machine system according to claim 6, wherein said electric valve control system comprises:
the pressure sensor is used for detecting a static pressure value of a flue outlet of the range hood;
a wind speed sensor for detecting a flow rate of air passing through the electric valve;
and the controller is communicated with the main control system and controls the running state of the electric valve according to the feedback information of the main control system.
8. A smoke collecting and discharging machine system according to claim 7, wherein said electric valve further comprises an angle sensor for detecting an offset angle of said valve and transmitting the detected offset angle to said controller.
9. A smoke evacuation system according to claim 7 or 8, wherein said electrically controlled valve system further comprises:
and the fire prevention valve is used for preventing the flue gas in the public flue from flowing backwards.
10. A range hood system according to claim 9, wherein the main control system comprises:
the fan is used for allocating the flow of the public flue;
and the main controller is used for controlling the power of the fan by communicating with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011437572.8A CN112594747A (en) | 2020-12-11 | 2020-12-11 | Control method of smoke collection and exhaust type smoke machine and smoke collection and exhaust type smoke machine system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011437572.8A CN112594747A (en) | 2020-12-11 | 2020-12-11 | Control method of smoke collection and exhaust type smoke machine and smoke collection and exhaust type smoke machine system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112594747A true CN112594747A (en) | 2021-04-02 |
Family
ID=75191657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011437572.8A Withdrawn CN112594747A (en) | 2020-12-11 | 2020-12-11 | Control method of smoke collection and exhaust type smoke machine and smoke collection and exhaust type smoke machine system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112594747A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023421A (en) * | 2019-12-27 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Static pressure self-adjustment control method and device and air conditioner |
| CN114353150A (en) * | 2022-02-17 | 2022-04-15 | 杭州老板电器股份有限公司 | Central smoke exhaust system and smoke exhaust method |
| CN116557324A (en) * | 2023-04-29 | 2023-08-08 | 南京德力通环境科技有限公司 | Variable frequency control method for roof fan of concentrated flue of residential kitchen |
| CN117113470A (en) * | 2023-04-29 | 2023-11-24 | 南京德力通环境科技有限公司 | Comprehensive type selection method and system for roof fans of concentrated flue of high-rise residential kitchen |
-
2020
- 2020-12-11 CN CN202011437572.8A patent/CN112594747A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023421A (en) * | 2019-12-27 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Static pressure self-adjustment control method and device and air conditioner |
| CN114353150A (en) * | 2022-02-17 | 2022-04-15 | 杭州老板电器股份有限公司 | Central smoke exhaust system and smoke exhaust method |
| CN116557324A (en) * | 2023-04-29 | 2023-08-08 | 南京德力通环境科技有限公司 | Variable frequency control method for roof fan of concentrated flue of residential kitchen |
| CN117113470A (en) * | 2023-04-29 | 2023-11-24 | 南京德力通环境科技有限公司 | Comprehensive type selection method and system for roof fans of concentrated flue of high-rise residential kitchen |
| CN117113470B (en) * | 2023-04-29 | 2024-02-09 | 南京德力通环境科技有限公司 | Comprehensive type selection method and system for roof fans of concentrated flue of high-rise residential kitchen |
| CN116557324B (en) * | 2023-04-29 | 2024-03-01 | 南京德力通环境科技有限公司 | Variable frequency control method for roof fan of concentrated flue of residential kitchen |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112594747A (en) | Control method of smoke collection and exhaust type smoke machine and smoke collection and exhaust type smoke machine system | |
| EP0721088B1 (en) | Global control of hvac distribution system | |
| CN110375365B (en) | Intelligent building smoke exhaust system and control method thereof | |
| CN110186092A (en) | Air quantity controller, method and the central exhaust system of central exhaust system | |
| AU690319B2 (en) | Control of prime hover in HVAC distribution system | |
| CN114265306B (en) | Online wind balance control method and control system for ocean platform ventilation system | |
| KR20020093826A (en) | Electronically regulated self-controlled ventilation unit | |
| KR101050412B1 (en) | Energy-saving kitchen ventilation control system and method | |
| CN205783585U (en) | A kind of laboratory self adaptation variable air rate visualization ventilated control system | |
| CN109855265B (en) | Low-energy-consumption multi-region refined variable air volume air conditioning system and control method thereof | |
| CN105333474A (en) | Shared oil smoke emission vertical pipe system and control method thereof | |
| CN201003835Y (en) | Energy saving controller for central air conditioner | |
| JP4884097B2 (en) | Environmental evaluation system and air conditioning system | |
| CN115437302A (en) | AI intelligent control method and system for large-scale central air conditioner | |
| CN111207423B (en) | Preset angle control method for flue check valve of high-rise building | |
| CN113464991B (en) | Method for presetting target air volume of indoor range hood in centralized smoke exhaust system of building | |
| CN114060919A (en) | Positive pressure adjusting method and control system for air treatment of clean room | |
| JP2006052928A (en) | Air-conditioning management system | |
| JP2020165642A (en) | Air conditioning system, server system, network, method for controlling air conditioning system, and method for controlling network | |
| CN111197777A (en) | Flow distribution control method for central flue system of high-rise building | |
| CN206724425U (en) | A kind of cloud terminal control mechanism for global optimization all-air system | |
| CN112361403A (en) | Centralized smoke exhaust system for building | |
| CN112178720B (en) | Control method of smoke collection and exhaust machine and smoke collection and exhaust system applying control method | |
| CN112178718A (en) | Control method of smoke exhaust collecting machine and smoke exhaust collecting machine system applying control method | |
| US20190271957A1 (en) | Intelligent building automation apparatus of autonomous control and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210402 |