CN205876761U - Fan of rotational speed is changed according to harmful gas concentration - Google Patents
Fan of rotational speed is changed according to harmful gas concentration Download PDFInfo
- Publication number
- CN205876761U CN205876761U CN201620745805.3U CN201620745805U CN205876761U CN 205876761 U CN205876761 U CN 205876761U CN 201620745805 U CN201620745805 U CN 201620745805U CN 205876761 U CN205876761 U CN 205876761U
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- harmful gas
- blower fan
- rotating speed
- gas concentration
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Abstract
The utility model discloses a fan of rotational speed is changed according to harmful gas concentration, including wind channel, air intake, air outlet, drive arrangement, by a plurality of blades that set up in pivot of drive arrangement driven and the pivot, be equipped with three way catalyst converter in the wind channel, it is equipped with harmful gas detection device to be close to air intake one side in the wind channel, harmful gas detection device has PLC programmable logic controler through circuit connection, drive arrangement is servo motor, PLC programmable logic controler is connected with the servo motor electricity, the utility model discloses utilize harmful gas detection device and PLC programmable logic controler to carry out automatically regulated to servo motor's rotational speed to utilize the gas of three way catalyst converter in to the garage to carry out catalytic conversion, reach the environmental protection requirement.
Description
Technical field
This utility model relates to a kind of garage blower fan, particularly to a kind of wind changing rotating speed according to harmful gas concentration
Machine.
Background technology
The blower fan that common place is installed acts primarily as the effect of ventilation, and in garage, especially in underground garage, vehicle exhaust
Concentrate very much, it is well known that containing harmful gass such as carbon monoxide, Hydrocarbon and nitrogen oxides in vehicle exhaust, if
Use common blower fan, on the one hand can not in time these harmful gass be discharged with the safety of personnel in protection garage outside garage,
On the other hand, if directly arranged these harmful gass to air, the most serious air pollution can be caused, with environmental protection concept phase
Deviate from.
Utility model content
For the deficiencies in the prior art, this utility model provides a kind of band ternary catalyzing unit and PLC FPGA control
The blower fan changing rotating speed according to harmful gas concentration of device processed.
For achieving the above object, this utility model provides following technical scheme: a kind of according to harmful gas concentration change
The blower fan of rotating speed, including arrange in air channel, air inlet, air outlet, driving means, the driving means rotating shaft driven and rotating shaft
Some blades, are provided with ternary catalyzing unit in described air channel, be provided with harmful gas detection dress in described air channel near air inlet side
Putting, described harmful gas detecting device has PLC programmable logic controller (PLC), described driving means to be servo electricity by circuit connection
Machine, described PLC programmable logic controller (PLC) electrically connects with servomotor.
Further, described harmful gas detecting device includes carbonmonoxide detector.
Further, described harmful gas detecting device also includes Hydrocarbon detector.
Further, described harmful gas detecting device also includes nitrogen oxides detector.
Further, near air outlet side in described ternary catalyzing unit is arranged at air channel.
Further, described ternary catalyzing unit is arranged between harmful gas detecting device and blade.
Further, described ternary catalyzing unit includes the first ternary catalyzing unit and the second ternary catalyzing unit, the described 1st
Unit's catalyst converter is arranged between harmful gas detecting device and blade, and described second ternary catalyzing unit is arranged in air channel near going out
Side, air port.
Further, the length of described first ternary catalyzing unit is less than the length of the second ternary catalyzing unit.
Further, also include that acoustic-optic alarm, described acoustic-optic alarm are electrically connected with PLC programmable logic controller (PLC)
Connect.
In sum, owing to, in garage, especially in underground garage, vehicle exhaust is concentrated very much, and exist on automobile
The refitted car dismantled of ternary catalyzing unit, such car storehouse temperature is the most at a relatively high, so the ternary catalyzing unit arranged in air channel
The harmful gas in garage can be absorbed, such as carbon monoxide, Hydrocarbon and nitrogen oxides, and these harmful gass are catalyzed
It is converted into innocuous gas discharge, so can protect the personnel in garage, and meet the requirement of environmental protection.
The harmful gas detecting device arranged near air inlet side in air channel, can monitor the dense of harmful gas in real time
Degree, harmful gas detecting device is connected by circuit PLC programmable logic controller (PLC), and such harmful gas detecting device is permissible
The signal of concentration inputs to PLC programmable logic controller (PLC), and PLC programmable logic controller (PLC) is connected by circuit servo electricity
Machine, the signal that such PLC programmable logic controller (PLC) can input according to the initial program set and harmful gas detecting device,
Executor's servomotor is controlled, thus reaches to change according to harmful gas concentration the purpose of rotating speed, and respond
The most in time.
Accompanying drawing explanation
Fig. 1 is the structural representation that this utility model changes the blower fan embodiment one of rotating speed according to harmful gas concentration；
Fig. 2 is the structural representation that this utility model changes the blower fan embodiment two of rotating speed according to harmful gas concentration；
Fig. 3 is the structural representation that this utility model changes the blower fan embodiment three of rotating speed according to harmful gas concentration.
Accompanying drawing illustrates: 1, air channel；2, air inlet；3, air outlet；4, rotating shaft；5, blade；6, ternary catalyzing unit；7, PLC can
Programmed logic controller；8, servomotor；9, carbonmonoxide detector；10, Hydrocarbon detector；11, nitrogen oxides inspection
Survey instrument；12, the first ternary catalyzing unit；13, the second ternary catalyzing unit；14, acoustic-optic alarm.
Detailed description of the invention
Referring to figs. 1 through Fig. 3, the embodiment of the blower fan that this utility model changes rotating speed according to harmful gas concentration is done into one
Step explanation.
Embodiment one: a kind of blower fan changing rotating speed according to harmful gas concentration, including air channel 1, air inlet 2, air outlet
3, the some blades 5 arranged in driving means, the driving means rotating shaft 4 driven and rotating shaft 4, are provided with ternary in described air channel 1
Catalyst converter 6, is provided with harmful gas detecting device near air inlet 2 side in described air channel 1, and described harmful gas detecting device leads to
It is servomotor 8 that oversampling circuit connection has PLC programmable logic controller (PLC) 7, described driving means, described PLC FPGA control
Device 7 processed electrically connects with servomotor 8.
By using technique scheme, owing to, in garage, especially in underground garage, vehicle exhaust is concentrated very much, and
There is the refitted car dismantled by the ternary catalyzing unit 6 on automobile, such car storehouse temperature is the most at a relatively high, so setting in air channel 1
The ternary catalyzing unit 6 put can absorb the harmful gas in garage, such as carbon monoxide, Hydrocarbon and nitrogen oxides, and will
These harmful gass are catalytically conveted to innocuous gas discharge, so can protect the personnel in garage, and meet wanting of environmental protection
Ask.
The harmful gas detecting device arranged near air inlet 2 side in air channel 1, can monitor the dense of harmful gas in real time
Degree, harmful gas detecting device is connected by circuit PLC programmable logic controller (PLC) 7, and such harmful gas detecting device can
So that the signal of concentration to input to PLC programmable logic controller (PLC) 7, PLC programmable logic controller (PLC) 7 is connected by circuit to be watched
Taking motor 8, such PLC programmable logic controller (PLC) 7 can be according to the initial program set and harmful gas detecting device input
Signal, executor's servomotor 8 is controlled, when the signal of concentration is more than the initial threshold range set, control
Servomotor 8 processed accelerates to rotate, thus accelerates aerofluxus；When the signal of concentration returns to the threshold range initially set, control to watch
Take motor 8 to slow down, thus save the energy, thus reach to change according to harmful gas concentration the purpose of rotating speed, and respond rapidly
In time.
The present embodiment is preferred, and described harmful gas detecting device includes carbonmonoxide detector 9, and described carbon monoxide is examined
Surveying instrument 9 is pump suction type carbonmonoxide detector 9.
By using technique scheme, after being combined with hemoglobin due to carbon monoxide, not only reduce blood cell and carry oxygen
Ability, but also suppress, delay parsing and the release of oxygen hemoglobin, cause body tissue downright bad because of anoxia, severe patient
Then may jeopardize the life of people, so arranging pump suction type carbonmonoxide detector 9 gas outside certain distance can be sucked instrument
Device carries out real-time concentration monitor, sensitive reliably.
The present embodiment is preferred, and described harmful gas detecting device also includes Hydrocarbon detector 10, described hydrocarbon
Compound test instrument 10 is Gas-Tec FID hydrocarbon gas survey meter.
By using technique scheme, owing to Hydrocarbon is the important component producing photochemical fog, it and nitrogen
Oxide is under ultraviolet irradiation, it may occur that chemical reaction, forms photochemical fog, and it has obvious zest, so
Arrange Hydrocarbon detector 10 its concentration is monitored in real time, sensitive reliably.
The present embodiment is preferred, and described harmful gas detecting device also includes nitrogen oxides detector 11, and described nitrogen aoxidizes
Analyte detection instrument 11 is JSA5-NOx type nitrogen oxides detector 11.
By using technique scheme, eventually change into nitric acid and nitre owing to nitrogen oxides water in air is combined
Hydrochlorate, thus form acid rain, and also it can produce photochemical pollution under certain condition with other pollutant, so arranging
JSA5-NOx type nitrogen oxides detector 11, monitors in real time to the concentration of nitrogen oxides, sensitive reliably.
The present embodiment is preferred, and described ternary catalyzing unit 6 is close air outlet 3 side in being arranged at air channel 1.
By using technique scheme, ternary catalyzing unit 6 is close air outlet 3 side in being arranged at air channel 1, can reduce
To the air drag at blade 5 at air inlet 2 in air channel 1, more swimmingly gas in garage is discharged.
The present embodiment is preferred, also includes acoustic-optic alarm 14, described acoustic-optic alarm 14 and PLC FPGA
Controller 7 electrically connects.
By using technique scheme, PLC programmable logic controller (PLC) 7 controlling acoustic-optic alarm 14, PLC can compile
Journey logic controller 7, after receiving the signal of harmful gas detecting device, compares, if reaching threshold with the initial threshold value set
Value, then open acoustic-optic alarm 14, and in reminding garage, personnel withdraw；Directly independent by PLC programmable logic controller (PLC) 7
Controlling acoustic-optic alarm 14, reliability is greatly improved, and facilitates centralized Control.
The harmful gas detecting device arranged near air inlet 2 side in air channel 1, can monitor the dense of harmful gas in real time
Degree, then the signal of concentration is inputed to PLC programmable logic controller (PLC) 7, PLC FPGA control by harmful gas detecting device
Executor's servomotor 8, according to the initial program set and the signal of harmful gas detecting device input, is carried out by device 7 processed
Control, when the signal of concentration is more than the initial threshold range set, controls servomotor 8 and accelerate to rotate, thus accelerate aerofluxus；
When the signal of concentration returns to the threshold range initially set, control servomotor 8 and slow down, thus save the energy.When PLC can compile
When journey logic controller 7 receives the signal of concentration more than the initial dangerous values set, open acoustic-optic alarm 14, remind garage
Interior personnel withdraw.
Owing to, in garage, especially in underground garage, vehicle exhaust is concentrated very much, and exist the three-element catalytic on automobile
The refitted car that device 6 is dismantled, such car storehouse temperature is the most at a relatively high, so the ternary of close air outlet 3 side in being arranged at air channel 1
Catalyst converter 6 can absorb the harmful gas in garage, such as carbon monoxide, Hydrocarbon and nitrogen oxides, and these is harmful to
Gas catalysis is converted into innocuous gas discharge, so can protect the personnel in garage, and meet the requirement of environmental protection.
Embodiment two: described ternary catalyzing unit 6 is arranged between harmful gas detecting device and blade 5.
Remaining technical characteristic is identical with embodiment one.
By using technique scheme, ternary catalyzing unit 6 is arranged between harmful gas detecting device and blade 5, this
Sample can ensure that all gas through this blower fan changing rotating speed according to harmful gas concentration all obtains catalyzed conversion, will not
Harmful gas is leaked in air.
Embodiment three: described ternary catalyzing unit 6 includes the first ternary catalyzing unit 12 and the second ternary catalyzing unit 13, described
One ternary catalyzing unit 12 is arranged between harmful gas detecting device and blade 5, and described second ternary catalyzing unit 13 is arranged at wind
Near air outlet 3 side in road 1.
By using technique scheme, the first ternary catalyzing unit 12 and the second ternary catalyzing unit 13 may further ensure that
All gases through this blower fan changing rotating speed according to harmful gas concentration all obtain catalyzed conversion, will not be by harmful gas
Leak in air.
The present embodiment is preferred, and the length of described first ternary catalyzing unit 12 is less than the length of the second ternary catalyzing unit 13.
By using technique scheme, owing to blade 5 both sides are equipped with ternary catalyzing unit 6, so being arranged at harmful gas
Health check-up is surveyed the length of the first ternary catalyzing unit 12 between device and blade 5 and can be reduced, to reduce at air inlet 2 to blade 5
Air drag, it is ensured that airflow smooth passes through.
Remaining technical characteristic is identical with embodiment one.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under this utility model thinking belong to protection domain of the present utility model.Should refer to
Go out, for those skilled in the art, without departing from the some improvement under this utility model principle premise and
Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (9)
1. according to harmful gas concentration change rotating speed a blower fan, including air channel, air inlet, air outlet, driving means, by driving
The some blades arranged in the rotating shaft of dynamic device driving and rotating shaft, it is characterised in that be provided with ternary catalyzing unit, institute in described air channel
Being provided with harmful gas detecting device near air inlet side in stating air channel, described harmful gas detecting device is connected by circuit to be had
PLC programmable logic controller (PLC), described driving means is servomotor, described PLC programmable logic controller (PLC) and servomotor
Electrical connection.
The blower fan changing rotating speed according to harmful gas concentration the most according to claim 1, it is characterised in that described harmful gas
Health check-up is surveyed device and is included carbonmonoxide detector.
The blower fan changing rotating speed according to harmful gas concentration the most according to claim 2, it is characterised in that described harmful gas
Health check-up is surveyed device and is also included Hydrocarbon detector.
The blower fan changing rotating speed according to harmful gas concentration the most according to claim 3, it is characterised in that described harmful gas
Health check-up is surveyed device and is also included nitrogen oxides detector.
The blower fan changing rotating speed according to harmful gas concentration the most according to claim 4, it is characterised in that described ternary is urged
Change close air outlet side in device is arranged at air channel.
The blower fan changing rotating speed according to harmful gas concentration the most according to claim 4, it is characterised in that described ternary is urged
Change device to be arranged between harmful gas detecting device and blade.
The blower fan changing rotating speed according to harmful gas concentration the most according to claim 4, it is characterised in that described ternary is urged
Change device and include that the first ternary catalyzing unit and the second ternary catalyzing unit, described first ternary catalyzing unit are arranged at harmful gas detection dress
Putting between blade, described second ternary catalyzing unit is close air outlet side in being arranged at air channel.
The blower fan changing rotating speed according to harmful gas concentration the most according to claim 7, it is characterised in that the described 1st
The length of unit's catalyst converter is less than the length of the second ternary catalyzing unit.
9. according to the blower fan changing rotating speed according to harmful gas concentration described in claim 5 or 6 or 8, it is characterised in that also wrap
Including acoustic-optic alarm, described acoustic-optic alarm electrically connects with PLC programmable logic controller (PLC).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620745805.3U CN205876761U (en) | 2016-07-14 | 2016-07-14 | Fan of rotational speed is changed according to harmful gas concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620745805.3U CN205876761U (en) | 2016-07-14 | 2016-07-14 | Fan of rotational speed is changed according to harmful gas concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205876761U true CN205876761U (en) | 2017-01-11 |
Family
ID=57694933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620745805.3U Expired - Fee Related CN205876761U (en) | 2016-07-14 | 2016-07-14 | Fan of rotational speed is changed according to harmful gas concentration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205876761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111512968A (en) * | 2019-02-01 | 2020-08-11 | 宁波火山电气有限公司 | Automatic ventilation system and automatic speed regulation and partition method thereof |
-
2016
- 2016-07-14 CN CN201620745805.3U patent/CN205876761U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111512968A (en) * | 2019-02-01 | 2020-08-11 | 宁波火山电气有限公司 | Automatic ventilation system and automatic speed regulation and partition method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20170714 |