CN107827251A - A kind of centrifugal blower anti-surge control method - Google Patents
A kind of centrifugal blower anti-surge control method Download PDFInfo
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- CN107827251A CN107827251A CN201711046095.0A CN201711046095A CN107827251A CN 107827251 A CN107827251 A CN 107827251A CN 201711046095 A CN201711046095 A CN 201711046095A CN 107827251 A CN107827251 A CN 107827251A
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- aerator
- centrifugal blower
- surge
- control method
- speed
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a kind of centrifugal blower anti-surge control method, and its process is：1st, when centrifugal blower starts, first the part aerator in aeration tank is increased to close or spills the water surface；2nd, in start-up course, with the lifting of centrifugal blower rotating speed, aerator is slowly sunk in aeration tank, until centrifugal blower reach setting speed, aerator also can automatic sedimentation arrive suitable position, complete startup；When the 3rd, shutting down, first raised portion aerator, during aerator is elevated, centrifugal blower realizes that progressively slow reduction of speed is shut down or stall is shut down by setting the elevated speed of aerator；In running, when operating in anti-surge region such as centrifugal blower or surge occurs, quick raised portion aerator, main ductwork pressure is reduced.This method realizes the Anti-surge Control of centrifugal blower using aerator, due to aerator nearly all in water is aerated position, so the waste of compressed air will not be caused, so as to save energy.
Description
Technical field
The invention belongs to air blower field, more particularly, to a kind of centrifugal blower anti-surge control method.
Background technology
When carrying out Anti-surge Control to centrifugal blower at present, general way is centrifugal blower connection vent valve,
Before centrifugal blower starts, atmospheric valve is first opened, is then centrifuged for air blower raising speed, after certain rotating speed is reached, close atmospheric valve,
Complete to start.During shutdown, it is also desirable to first open atmospheric valve, can just be shut down with reduction of speed or stall.In the process of running, such as supervisor's net
Or aeration tank etc. changes, and raises ductwork pressure, when centrifugal blower enters anti-surge region or surge occurs, also to beat
Atmospheric valve is driven, or even must be shut down, can not be run.It can thus be seen that whether blower fan is starting, stopping or run anti-asthma
Shake and be required for that compressed air is carried out into emptying processing with atmospheric valve, during these, can all cause the waste of energy, in case of exposed
When the fluctuation of gas pool water level is violent, or even the embarrassing phenomenon for causing blower fan not run.Therefore, research and development are a kind of easy, efficient, accurate
Centrifugal blower anti-surge control method be urgent problem to be solved.
The content of the invention
In view of this, can be easy, efficient right the present invention is directed to propose a kind of centrifugal blower anti-surge control method
Air blower carries out Anti-surge Control.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of centrifugal blower anti-surge control method, its process are as follows：
1st, centrifugal blower connects aerator by pipe network, when centrifugal blower starts, first exposes the part in aeration tank
Gas device is increased to close or spills the water surface；
2nd, in start-up course, with the lifting of centrifugal blower rotating speed, aerator slowly sinks in aeration tank (sedimentation
Speed and centrifugal blower rotating speed the maximum pressure phase that can be provided in a certain rotating speed of lifting speed and centrifugal blower
Close, different model, the centrifugal blower of brand, the sinking speed of aerator should be different), turn until centrifugal blower reaches setting
Speed, aerator also can automatic sedimentation to suitable position, complete to start；
3rd, when shutting down, first raised portion aerator, during aerator is elevated, centrifugal blower is exposed by setting
The elevated speed of gas device, realize that progressively slow reduction of speed is shut down or stall is shut down；In running, such as because pipe network or SEA LEVEL VARIATION make
When centrifugal blower operates in anti-surge region or surge occurs, quick raised portion aerator, main ductwork pressure is reduced.
Further, because the flow of centrifugal blower is different, when centrifugal blower starts, it is increased to close or fugitive water
The aerator number in face accounts for the 20%~100% of total aerator number.
Further, when centrifugal blower operates in anti-surge region or surge occurs, the number for raising aerator accounts for always
The 10%~50% of aerator number.
Further, during shutdown, during aerator is elevated, centrifugal blower set the elevated speed of aerator as
Zero arrives the maximal rate of aerator.Its maximum ramp-up rate of different aerators is different, with the rise of aerator, air blower
Pressure at expulsion can reduce gradually, and air blower reduces amplitude according to pressure at expulsion and drops rotating speed, until pressure at expulsion less than 10Kpa~
30Kpa, air blower stall is shut down, and after can not also waiting aerator to spill the water surface, direct stall be shut down.
Further, in running, when centrifugal blower operates in anti-surge region or surge occurs, with aerator
Maximal rate raised portion aerator, reduces main ductwork pressure.
Further, the aerator is liftable aerator.
Further, when centrifugal blower starts, stopped, rise aerator prevents centrifugal blower from surge occurs.
Relative to prior art, centrifugal blower anti-surge control method of the present invention has the advantage that：We
Method replaces atmospheric valve using liftable aerator, the Anti-surge Control of centrifugal blower is realized using aerator, due to aerator
The position nearly all in water is aerated, so the waste of compressed air will not be caused, so as to save energy；With easy, high
The advantages that imitating, be accurate.
Brief description of the drawings
The accompanying drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is that centrifugal blower of the present invention is aerated front view；
Fig. 2 is that centrifugal blower of the present invention is aerated axonometric drawing.
Description of reference numerals：
1- centrifugal blowers, 2- atmospheric valves, 3- pipe networks, 4- liftable aerators, 5- water levels tag line (i.e. the water surface), 6- expose
Gas pond.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of centrifugal blower anti-surge control method, its process are as follows：
1st, when centrifugal blower 1 starts, first by the part liftable aerator 4 of aeration tank 6, (quantity is determined by the flow of blower fan
It is fixed) it is increased to close or spills the water surface 5.Because the flow of centrifugal blower is different, when centrifugal blower starts, it is increased to close
Or spill 4 numbers of liftable aerator of the water surface and account for the 20%~100% of total aerator number.
2nd, in start-up course, with the lifting of the rotating speed of centrifugal blower 1, liftable aerator 4 slowly sinks to aeration
(the maximum pressure that the speed of sedimentation and the lifting speed of rotation speed of fan and centrifugal blower can be provided in a certain rotating speed in pond 6
Correlation, different model, the centrifugal blower of brand, the sinking speed of liftable aerator should be different), set until blower fan reaches
Rotating speed, liftable aerator 4 also can automatic sedimentation to suitable position, complete to start.
3rd, when shutting down, first raised portion liftable aerator 4 is answered, during liftable aerator 4 is elevated, centrifugation
Air blower 1 realizes that progressively slow reduction of speed is shut down or stall is shut down by setting 4 elevated speed of liftable aerator；Ran
Cheng Zhong, such as because pipe network 3 or SEA LEVEL VARIATION make centrifugal blower 1 operate in anti-surge region or occur surge when, only need to quickly rise
High part liftable aerator 4 makes the reduction of the pressure of supervisor's net 3.
Preferably, in running, when centrifugal blower operates in anti-surge region or surge occurs, with aerator most
Big speed raised portion aerator, the number for raising aerator account for the 10%~50% of total aerator number, supervisor are reduced with this
Net pressure.
Preferably, during shutdown, during aerator is elevated, centrifugal blower sets the elevated speed of aerator as zero
To the maximal rate of aerator.Its maximum ramp-up rate of different aerators is different, with the rise of aerator, the row of air blower
Atmospheric pressure can reduce gradually, and air blower reduces amplitude according to pressure at expulsion and drops rotating speed, until pressure at expulsion less than 10Kpa~
30Kpa, air blower stall is shut down, and after can not also waiting aerator to spill the water surface, direct stall be shut down.
The above method can be seen that realizes that the Anti-surge Control of centrifugal blower 1 (starts, stopped using liftable aerator 4
Atmospheric valve 2 or rise liftable aerator 4 are opened when only also for preventing centrifugal blower from surge occurs), because liftable is aerated
The position nearly all in the water of aeration tank 6 of device 4, so the waste of compressed air will not be caused, so as to save energy.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (7)
1. a kind of centrifugal blower anti-surge control method, it is characterised in that its process is as follows：
1) centrifugal blower connects aerator by pipe network, when centrifugal blower starts, first by the part aerator in aeration tank
It is increased to close or spills the aeration tank water surface；
2) in start-up course, with the lifting of centrifugal blower rotating speed, aerator is sunk in aeration tank, until centrifugal blower
Reach setting speed, aerator also can automatic sedimentation arrive suitable position, complete startup；
3) when shutting down, first raised portion aerator, during aerator is elevated, centrifugal blower is by setting aerator
Elevated speed, realize that reduction of speed is shut down or stall is shut down；In running, centrifugal blower operates in anti-surge region or generation
During surge, quick raised portion aerator, main ductwork pressure is reduced.
A kind of 2. centrifugal blower anti-surge control method according to claim 1, it is characterised in that：Centrifugal blower opens
When dynamic, it is increased to aerator number that is close or spilling the water surface and accounts for the 20%~100% of total aerator number.
A kind of 3. centrifugal blower anti-surge control method according to claim 1 or 2, it is characterised in that：Centrifuge air blast
When machine operates in anti-surge region or surge occurs, the number for raising aerator accounts for the 10%~50% of total aerator number.
A kind of 4. centrifugal blower anti-surge control method according to claim 1 or 2, it is characterised in that：During shutdown,
During aerator is elevated, centrifugal blower sets the elevated speed of aerator as zero maximal rate for arriving aerator.
A kind of 5. centrifugal blower anti-surge control method according to claim 4, it is characterised in that：In running,
When centrifugal blower operates in anti-surge region or surge occurs, with the maximal rate raised portion aerator of aerator, reduce
Main ductwork pressure.
A kind of 6. centrifugal blower anti-surge control method according to claim 1, it is characterised in that：The aerator is
Liftable aerator.
A kind of 7. centrifugal blower anti-surge control method according to claim 1, it is characterised in that：In centrifugal blower
When starting, stopping, rise aerator prevents centrifugal blower from surge occurs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711046095.0A CN107827251B (en) | 2017-10-31 | 2017-10-31 | Anti-surge control method for centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711046095.0A CN107827251B (en) | 2017-10-31 | 2017-10-31 | Anti-surge control method for centrifugal blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107827251A true CN107827251A (en) | 2018-03-23 |
| CN107827251B CN107827251B (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711046095.0A Active CN107827251B (en) | 2017-10-31 | 2017-10-31 | Anti-surge control method for centrifugal blower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113387456A (en) * | 2021-07-09 | 2021-09-14 | 济南梦嘉宏环保科技有限公司 | Stall protection device based on centrifugal aerator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10325337A (en) * | 1997-05-28 | 1998-12-08 | Mitsubishi Heavy Ind Ltd | Compressor surging preventing device for pressure fluidized bed combined power generational system |
| CN1837088A (en) * | 2006-04-20 | 2006-09-27 | 上海昊沧系统控制技术有限责任公司 | Gas distribution adjustment method for blast aeration system |
| CN106194811A (en) * | 2016-09-26 | 2016-12-07 | 南京磁谷科技有限公司 | The operation control system of magnetic suspension centrifugal aeration air blower and control method |
| CN206395911U (en) * | 2017-01-19 | 2017-08-11 | 北京中科众联新能源技术服务有限公司 | A kind of filler with can the bioreactor that combines of lifting aerator |
-
2017
- 2017-10-31 CN CN201711046095.0A patent/CN107827251B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10325337A (en) * | 1997-05-28 | 1998-12-08 | Mitsubishi Heavy Ind Ltd | Compressor surging preventing device for pressure fluidized bed combined power generational system |
| CN1837088A (en) * | 2006-04-20 | 2006-09-27 | 上海昊沧系统控制技术有限责任公司 | Gas distribution adjustment method for blast aeration system |
| CN106194811A (en) * | 2016-09-26 | 2016-12-07 | 南京磁谷科技有限公司 | The operation control system of magnetic suspension centrifugal aeration air blower and control method |
| CN206395911U (en) * | 2017-01-19 | 2017-08-11 | 北京中科众联新能源技术服务有限公司 | A kind of filler with can the bioreactor that combines of lifting aerator |
Non-Patent Citations (2)
| Title |
|---|
| 张克危: "《流体机械原理 上》", 31 May 2000, 机械工业出版社 * |
| 沈天耀: "《离心叶轮的内流理论基础》", 31 December 1986, 浙江大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113387456A (en) * | 2021-07-09 | 2021-09-14 | 济南梦嘉宏环保科技有限公司 | Stall protection device based on centrifugal aerator |
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| Publication number | Publication date |
|---|---|
| CN107827251B (en) | 2020-09-04 |
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