CN206320896U - Airduct becomes air draft amount control device - Google Patents
Airduct becomes air draft amount control device Download PDFInfo
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- CN206320896U CN206320896U CN201621425398.4U CN201621425398U CN206320896U CN 206320896 U CN206320896 U CN 206320896U CN 201621425398 U CN201621425398 U CN 201621425398U CN 206320896 U CN206320896 U CN 206320896U
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Abstract
The utility model provides a kind of airduct and becomes air draft amount control device, wherein, control system includes air main, main air blower, air exhaust branch pipe, static pressure transducer and frequency-variable controller, main air blower is in air main, at least one air exhaust branch pipe is offered on the tube wall of air main, frequency-variable controller control is connected to main air blower, static pressure transducer is connected to frequency-variable controller, static pressure transducer includes the sensor ends in air main for the static pressure in monitoring air main and transmits static pressure to frequency-variable controller, frequency-variable controller receives analysis static pressure and sends converting operation instruction to main air blower.The utility model solves solution to becoming the problem of exhaust air rate is controlled, and ensures the operation of system high efficiency energy-conservation while meeting technical need.
Description
Technical field
The utility model belongs to building structure field, is related to the control system of airduct air quantity.
Background technology
At present, in the design of exhaust system, many occasions are directed to the use of uiform section ventilation shaft, such as：
Uiform section air main, track traffic rail head track bottom heat extraction air channel, concentration blow-off line of industrial occasions of Kitchen in High Rise Apartment etc..
Wherein, most exhaust system is directed to the situation of multiple branch circuit, and each branch road unlatching have it is larger random
Property.In this kind of system, because each branch road has design air flow, and the synchronous utilization rate of system is less than 1, thus this is
The total blast volume of system is not equal to each branch road air quantity sum.In addition, again because the keying of each branch road is with very big randomness, in order that
The operation of system high efficiency, energy-conservation, system needs to use change exhaust air rate control.
As can be seen here, such system how is monitored, and it is the technological difficulties for waiting to break through to make correct response.
Utility model content
To overcome the defect present in prior art, a kind of airduct is now provided and becomes air draft amount control device, to solve to becoming
The problem of exhaust air rate is controlled, ensures the operation of system high efficiency energy-conservation while meeting technical need.
To achieve the above object, the technical solution of the utility model is：
A kind of airduct is provided first and becomes air draft amount control device, including air main, main air blower, air exhaust branch pipe, static pressure sensing
Device and frequency-variable controller, the main air blower offer at least one in the air main on the tube wall of the air main
The air exhaust branch pipe, the frequency-variable controller control is connected to the main air blower, and the static pressure transducer is connected to the frequency conversion
Controller, the static pressure transducer includes the sensor ends in the air main to monitor the static pressure in the air main
Value simultaneously transmits the static pressure to the frequency-variable controller, and the frequency-variable controller receives the analysis static pressure and to described
Main air blower sends converting operation instruction.
Preferably, the static pressure include the stable absolute value Po of static pressure instantaneous value Ps, static pressure and static pressure stable threshold (Po ±
Δ P), the frequency-variable controller is by judging the static pressure instantaneous value Ps and the static pressure stable threshold (Po ± Δ P) relation
And then control the main air blower；When the frequency-variable controller judges that the static pressure instantaneous value Ps is less than the static pressure stable threshold
During the lower limit of (Po ± Δ P), the main air blower frequency reducing work is controlled；When the frequency-variable controller judges the static pressure instantaneous value Ps
Higher than the static pressure stable threshold (Po ± Δ P) the upper limit when, control main air blower raising frequency work.
Preferably, controlled valve is installed on each air exhaust branch pipe.
Preferably, the air main is uiform section airduct.
Preferably, evenly spaced multiple air exhaust branch pipes are offered on the air main, the sensor ends are located at more
The centre position of the individual air exhaust branch pipe.
Meanwhile, the utility model also provides a kind of airduct and becomes air draft amount control method, comprises the following steps：
A main air blower is provided, by the main air blower in air main；
In offering at least one air exhaust branch pipe on the tube wall of the air main；
In one frequency-variable controller of control connection on the main air blower；
One static pressure transducer is provided, the static pressure transducer is connected to the frequency-variable controller；
The sensor ends of the static pressure transducer are located in the air main to monitor the static pressure in the air main simultaneously
The static pressure is transmitted to the frequency-variable controller, is received by the frequency-variable controller and analyzes the static pressure and to described
Main air blower sends converting operation instruction.
Preferably, it is further comprising the steps of：Formed by the static pressure transducer in the diverse location in the air main
Static pressure monitoring point is to monitor the static pressure；The static pressure includes the stable absolute value Po of static pressure instantaneous value Ps, static pressure and static pressure
Stable threshold (Po ± Δ P), the static pressure instantaneous value Ps and the static pressure stable threshold (Po are judged by the frequency-variable controller
± Δ P) relation so that control the main air blower；When the frequency-variable controller judges the static pressure instantaneous value Ps less than described quiet
When pressing the lower limit of stable threshold (Po ± Δ P), the main air blower frequency reducing is controlled；When the frequency-variable controller judges that the static pressure is real
When duration Ps is higher than the upper limit of the static pressure stable threshold (Po ± Δ P), the main air blower raising frequency is controlled.
Preferably, it is further comprising the steps of：Multiple air exhaust branch pipe uniform intervals are opened on the air main, will
The sensor ends are located at the centre position of multiple air exhaust branch pipes to be used as the static pressure monitoring point.
Preferably, it is further comprising the steps of：In installing controlled valve on each air exhaust branch pipe, when described at least one
When air exhaust branch pipe carries out air draft, the corresponding controlled valve is opened, and main air blower is accordingly opened.
By adopting the above-described technical solution, the utility model airduct becomes the beneficial of air draft amount control device and control method
Effect includes：
By effective VAV control, control system is set to meet operation demand, more efficient, energy-conservation operation.Specifically：
Change exhaust air rate control based on pressure detecting.When each branch road air quantity of system reaches design air flow, arbitrarily opening quantity and opening
Open under position, there is a static pressure point of safes in air main.System is entered by monitoring the static pressure of this point of safes to roof ventilator
Row VAV control.When branch road opens increasing number, monitoring point static pressure rises in air main, and static pressure transducer obtains this pressure
Force value, and pass to frequency-variable controller.Frequency-variable controller is obtained after monitor value, calculating and the static pressure difference of stationary value, and with
Stable threshold is contrasted.When more than stable threshold, frequency-variable controller, which sends blower fan, should increase the instruction of frequency, by increasing blower fan
Air quantity, monitoring point pressure is fallen back in the range of stationary value.Equally, when branch road, which opens quantity, to be reduced, monitoring point in air main
Static pressure declines, by static pressure transducer and frequency-variable controller, makes roof wind frequency reducing operation machine, so that reduce fan delivery, until
Monitoring point static pressure is gone back up in stable threshold.
Brief description of the drawings
Fig. 1 is the structural representation that the utility model airduct becomes air draft amount control device；
Fig. 2 is the flow chart corresponding to its control method of Fig. 1；
Wherein：Main air blower 1, air main 2, air exhaust branch pipe 3, valve 4, static pressure transducer 5, frequency-variable controller 6, static pressure monitoring
Point 7.
Embodiment
The utility model is further illustrated below in conjunction with accompanying drawing illustrated embodiment.
Shown in reference picture 1, the utility model provide firstly a kind of airduct and become air draft amount control device, including air main 2,
Main air blower 1, air exhaust branch pipe 3, static pressure transducer 5 and frequency-variable controller 6, the main air blower 1 is in the air main 2, institute
At least one described air exhaust branch pipe 3 is offered on the tube wall for stating air main 2, the control of frequency-variable controller 6 is connected to the master
Blower fan 1, the static pressure transducer 5 is connected to the frequency-variable controller 6, and the static pressure transducer 5 includes one and is located at the main wind
Sensor ends in pipe 2 for the static pressure in the monitoring air main 2 and are transmitted the static pressure to the frequency-variable controller
6, the frequency-variable controller 6 receives the analysis static pressure and sends converting operation instruction to the main air blower 1.
Specifically, the static pressure include the stable absolute value Po of static pressure instantaneous value Ps, static pressure and static pressure stable threshold (Po ±
Δ P), the frequency-variable controller 6 is by judging the static pressure instantaneous value Ps and the static pressure stable threshold (Po ± Δ P) relation
And then control the main air blower 1.
More preferably, controlled valve 4 is installed on each air exhaust branch pipe 3.The air main 2 is uiform section wind
Pipe.Evenly spaced multiple air exhaust branch pipes 3 are connected in parallel on the air main 2, the sensor ends are located at multiple rows
The centre position of wind branch pipe 3.
After with said structure feature, the utility model can be implemented by procedure below：
In the present embodiment, when at least a branch road needs air draft, corresponding valve 4 is opened, and main air blower 1 is also needed out
Open.Needed for the exhaust air rate of each air exhaust branch pipe 3 is each branch road air draft, and the exhaust air rate of main air blower 1 is the air draft for each branch road opened
Measure sum.When each branch road is opened and closed at random, the system passes through following control mode, it is ensured that the operation air quantity of main air blower 1 is unlatching
The exhaust air rate sum of branch road.Specifically：
Static pressure transducer 5 is installed in air main 2, the position of static pressure monitoring point 7 with air exhaust branch pipe 3 quantity and air main 2
Length and change (position of monitoring point 7 is preferably in the centre position of branch pipe), it is determined that length and quantity be to have a determination
Static pressure point of safes, this point i.e. is used as static pressure monitoring point 7.Static pressure monitoring point 7 has the stable absolute value (Po) of a static pressure and one
Individual static pressure stable threshold (Po ± Δ P).The static pressure of static pressure monitoring point 7 is obtained by static pressure transducer 5, and passes to VFC
Device 6.Internal judgment is carried out when frequency-variable controller 6 obtains the static pressure instantaneous value Ps transmitted by static pressure transducer 5：As Ps ∈
When (Po ± Δ P), frequency-variable controller 6 does not send any instruction；And work asWhen, if Ps ＜ (Po- Δ P), i.e. table
Show that unlatching branch road is reduced, now need the frequency reducing of main air blower 1 operation to reduce exhaust air rate, until monitoring point pressure increases to stable threshold
Within；If Ps ＞ (Po- Δ P), that is, represent that opening branch road increases, and now needs the raising frequency of main air blower 1 to run increasing exhaust amount, until
Monitoring point pressure is reduced within stable threshold, and system control process is as shown in Figure 2.
Complete after above-mentioned implementation process, following characteristics of the present utility model should be able to be embodied：
When each branch road air quantity of system reaches design air flow, arbitrarily opening under quantity and open position, air main internal memory
In a static pressure point of safes.System carries out VAV control by monitoring the static pressure of this point of safes to roof ventilator.Work as branch road
When opening increasing number, monitoring point static pressure rises in air main, and static pressure transducer obtains this pressure value, and transmits fan control
Device processed.Fan controller is obtained after monitor value, calculates the static pressure difference with stationary value, and contrast with stable threshold.When
During more than stable threshold, fan controller, which sends blower fan, should increase the instruction of frequency, and by increasing fan delivery, monitoring is pressed
Power is fallen back in the range of stationary value.Equally, when branch road, which opens quantity, to be reduced, monitoring point static pressure declines in air main, passes through
Static pressure transducer and fan controller, make roof wind frequency reducing operation machine, so as to reduce fan delivery, until monitoring point static pressure is returned
It is raised in stable threshold.So as to the change exhaust air rate control based on pressure detecting, control system is set to meet operation demand, more efficient,
The operation of energy-conservation.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using this reality
With new.Person skilled in the art obviously can easily make various modifications to these embodiments, and saying herein
Bright General Principle is applied in other embodiment without passing through performing creative labour.Therefore, the utility model is not limited to
Embodiment is stated, those skilled in the art disclose according to of the present utility model, do not depart from the improvement that the utility model category is made
All should be within protection domain of the present utility model with modification.
Claims (5)
1. a kind of airduct becomes air draft amount control device, it is characterised in that：Including air main, main air blower, air exhaust branch pipe, static pressure sensing
Device and frequency-variable controller, the main air blower offer at least one in the air main on the tube wall of the air main
The air exhaust branch pipe, the frequency-variable controller control is connected to the main air blower, and the static pressure transducer is connected to the frequency conversion
Controller, the static pressure transducer includes the sensor ends in the air main to monitor the static pressure in the air main
Value simultaneously transmits the static pressure to the frequency-variable controller, and the frequency-variable controller receives the analysis static pressure and to described
Main air blower sends converting operation instruction.
2. airduct according to claim 1 becomes air draft amount control device, it is characterised in that：It is real that the static pressure includes static pressure
The stable absolute value Po of duration Ps, static pressure and static pressure stable threshold (Po ± Δ P), the frequency-variable controller is by judging the static pressure
Instantaneous value Ps and the static pressure stable threshold (Po ± Δ P) relation and then the control main air blower；When the frequency-variable controller
When judging that the static pressure instantaneous value Ps is less than the lower limit of the static pressure stable threshold (Po ± Δ P), the main air blower frequency reducing is controlled
Work；When the frequency-variable controller judges that the static pressure instantaneous value Ps is higher than the upper limit of the static pressure stable threshold (Po ± Δ P)
When, control the main air blower raising frequency work.
3. airduct according to claim 1 becomes air draft amount control device, it is characterised in that：Pacify on each air exhaust branch pipe
Equipped with controlled valve.
4. airduct according to claim 1 becomes air draft amount control device, it is characterised in that：The air main is uiform section wind
Pipe.
5. airduct according to claim 1 becomes air draft amount control device, it is characterised in that：Offered on the air main
Multiple air exhaust branch pipes at even interval, the sensor ends are located at the centre position of multiple air exhaust branch pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621425398.4U CN206320896U (en) | 2016-12-23 | 2016-12-23 | Airduct becomes air draft amount control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621425398.4U CN206320896U (en) | 2016-12-23 | 2016-12-23 | Airduct becomes air draft amount control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206320896U true CN206320896U (en) | 2017-07-11 |
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Family Applications (1)
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|---|---|---|---|
| CN201621425398.4U Active CN206320896U (en) | 2016-12-23 | 2016-12-23 | Airduct becomes air draft amount control device |
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| CN (1) | CN206320896U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765954A (en) * | 2016-12-23 | 2017-05-31 | 同济大学 | Airduct becomes air draft amount control device and control method |
| CN109028983A (en) * | 2018-07-11 | 2018-12-18 | 尚成荣 | A kind of copper smelting-furnace exhaust-gas treatment wind pressure automatic regulating system |
| CN111014218A (en) * | 2019-11-28 | 2020-04-17 | 同济大学 | Centralized air exhaust system and air exhaust method for multiple rubber vulcanizing machines |
| CN111271805A (en) * | 2020-03-26 | 2020-06-12 | 同济大学 | Centralized exhaust system and method |
-
2016
- 2016-12-23 CN CN201621425398.4U patent/CN206320896U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765954A (en) * | 2016-12-23 | 2017-05-31 | 同济大学 | Airduct becomes air draft amount control device and control method |
| CN109028983A (en) * | 2018-07-11 | 2018-12-18 | 尚成荣 | A kind of copper smelting-furnace exhaust-gas treatment wind pressure automatic regulating system |
| CN111014218A (en) * | 2019-11-28 | 2020-04-17 | 同济大学 | Centralized air exhaust system and air exhaust method for multiple rubber vulcanizing machines |
| CN111271805A (en) * | 2020-03-26 | 2020-06-12 | 同济大学 | Centralized exhaust system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180608 Address after: 100107 room 1303, King Lung International B, 9, Fu Lin Road, Chaoyang District, Beijing. Patentee after: Beijing Chuang Kong ring science and Technology Development Co.,Ltd. Address before: No. 1239, Siping Road, Yangpu District, Shanghai Patentee before: Tongji University |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220708 Address after: 301700 No. 10, minwang Road, Jingbin Industrial Park, Wuqing District, Tianjin Patentee after: Kongyan (Tianjin) ventilation equipment Co.,Ltd. Address before: 100107 room 1303, King Lung International B, 9, Fu Lin Road, Chaoyang District, Beijing. Patentee before: Beijing Chuang Kong ring science and Technology Development Co.,Ltd. |