CN207454405U - A kind of device for preventing magnetic-suspension high-speed air blower surge - Google Patents
A kind of device for preventing magnetic-suspension high-speed air blower surge Download PDFInfo
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- CN207454405U CN207454405U CN201721574245.0U CN201721574245U CN207454405U CN 207454405 U CN207454405 U CN 207454405U CN 201721574245 U CN201721574245 U CN 201721574245U CN 207454405 U CN207454405 U CN 207454405U
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- air blower
- safety valve
- exhaust pipe
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- exhaust
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Abstract
The utility model creation provides a kind of device for preventing magnetic-suspension high-speed air blower surge, and including the exhaust pipe being arranged between magnetic suspension air blower and main pipeline, the close position being connected with main pipeline is equipped with controlled valve on the exhaust pipe；The exhaust pipe is equipped with blow-down pipe, which connects with exhaust pipe, and the other end is opening；Check-valves and exhaust safety valve are additionally provided on the exhaust pipe, exhaust safety valve is positioned close to the one side of magnetic suspension air blower；The blow-down pipe is equipped with blow valve and emptying safety valve, and emptying safety valve is positioned close to the one side of exhaust pipe.The utility model Creative Design is reasonable, can easily be transformed on existing magnetic suspension air blower, easy to operate, good operating stability.Corresponding safety valve can suitably automatically begin to pressure release according to setting value and the deviation of actual value, effectively alleviate surge or even under most of operating mode, can completely avoid and surge occur.
Description
Technical field
The invention belongs to magnetic suspension air blower equipment technical field, prevents magnetic-suspension high-speed from rousing more particularly, to one kind
The device of wind turbine surge.
Background technology
Under normal conditions, Fan Equipment can all have the phenomenon that surge, particularly debug the stage and technique for applying changes greatly
Occasion, if wind turbine particularly high-speed fan undergoes serious multiple surge, mechanical component can be caused to damage or other danger
Evil, in addition, it is necessary to the long period during electronic blow valve switch motion.The existing method for preventing surge is by control system
Judge whether equipment occurs surge, once surge occurs, then control device shuts down or improves rotating speed immediately, to prevent to breathe heavily
It shakes.But reality is, if shutdown is handled, can influence normal work and efficiency；If accelerating wind turbine operating, the energy is caused
Waste, and the service life of wind turbine is also affected to a certain extent.
The content of the invention
In view of this, the invention is intended to overcome above-mentioned defect in the prior art, proposes that one kind prevents magnetcisuspension
The device of floating high-speed blower surge.
In order to achieve the above objectives, the technical solution of the invention is realized in：
A kind of device for preventing magnetic-suspension high-speed air blower surge, including being arranged between magnetic suspension air blower and main pipeline
Exhaust pipe, the close position being connected with main pipeline is equipped with controlled valve on the exhaust pipe；The exhaust pipe is equipped with emptying
Pipe, the blow-down pipe one end are connected with exhaust pipe, and the other end is opening；Check-valves and exhaust, safety are additionally provided on the exhaust pipe
Valve, exhaust safety valve are positioned close to the one side of magnetic suspension air blower；The blow-down pipe is equipped with blow valve and emptying safety valve,
Emptying safety valve is positioned close to the one side of exhaust pipe.
Further, the close position being connected with magnetic suspension air blower is equipped with corrugated expansion joint on exhaust pipe.
Further, corrugated expansion joint is axial consistent with the blowing direction of magnetic suspension air blower gas outlet.
Further, the controlled valve uses Hand-operated butterfly valve.
Further, the spacing of the exhaust safety valve and check-valves is 2 times of air slit diameter.
Further, the spacing of the emptying safety valve and blow valve is be vented pipe diameter 2 times.
Compared with the prior art, the invention has the advantage that：
The invention design is reasonable, can easily be transformed on existing magnetic suspension air blower, easy to operate,
Good operating stability.Corresponding safety valve can suitably automatically begin to pressure release, effectively subtract according to setting value and the deviation of actual value
Light surge or even under most of operating mode, can completely avoid and surge occur.
Description of the drawings
The attached drawing for forming the part of the invention is used for providing further understanding the invention, present invention wound
The schematic description and description made does not form the improper restriction to the invention for explaining the invention.
In attached drawing：
Fig. 1 is the structure diagram of the invention；
Fig. 2 is the top view of Fig. 1.
Reference sign：
1- magnetic suspension air blowers；2- main pipelines；3- exhaust pipes；4- controlled valves；5- blow-down pipes；6- check-valves；7- is vented
Safety valve；8- blow valves；9- is vented safety valve；10- corrugated expansion joints.
Specific embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the invention can
To be mutually combined.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instructions such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the invention and simplifies description rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For the limitation to the invention.In addition, term " first ", " second " etc. are only used for description purpose, and it is not intended that instruction
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can express or implicitly include one or more this feature.In the description of the invention, unless separately
It is described, " multiple " are meant that two or more.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the invention
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the invention.
The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments creates.
A kind of device for preventing magnetic-suspension high-speed air blower surge, as shown in figure and Fig. 2, including being arranged on magnetic suspension air blast
Exhaust pipe 3 between machine 1 and main pipeline 2, the close position being connected with main pipeline 2 is equipped with control exhaust pipe on the exhaust pipe 3
The controlled valve 4 of air-flow break-make；The exhaust pipe 3 is equipped with blow-down pipe 5, which connects with exhaust pipe, the other end
For opening；The exhaust pipe 3 is equipped with check-valves 6 and exhaust safety valve 7, and exhaust safety valve 7 is positioned close to magnetic suspension air blast
The one side of machine 1, i.e. exhaust safety valve 7 is provided closer to one end of air blower gas outlet；The blow-down pipe is equipped with blow valve
8 are positioned close to the one side of exhaust pipe with emptying safety valve 9, emptying safety valve, i.e. emptying safety valve is arranged on blow-down pipe more
The close position being connected with exhaust pipe.
The close position being connected with magnetic suspension air blower is equipped with corrugated expansion joint 10 on above-mentioned exhaust pipe.Above-mentioned bellows
Compensator is axial consistent with the blowing direction of magnetic suspension air blower gas outlet.Corrugated expansion joint sheet is as the prior art, here
It repeats no more.Why the axial blowing direction with magnetic suspension air blower gas outlet of corrugated expansion joint is set unanimously, be exactly
In view of air blower gas outlet be outwards vented during, air-flow more smoothly by exhaust pipe and corrugated expansion joint,
Gas will not be hindered to flow, coordinate the compensating action of corrugated expansion joint, ensure that exhaust pipe installation is more reasonable, from most basic
The possibility that surge occurs is reduced in topology layout.
Above-mentioned controlled valve uses Hand-operated butterfly valve, certainly, is not limited in using Hand-operated butterfly valve.It being capable of the convenient row of realization
Gas, when need not be vented, closure switch valve, can be by exhaust safety valve pressure release, together if exhaust overpressure is excessively high
When, blow-down pipe can aid in pressure release.
The spacing of above-mentioned exhaust safety valve and check-valves is 2 times of air slit diameter.The guarantee exhaust that maximum can be limited
The reliability that safety valve uses, if interval too small, gas pressure potentially unstable between check-valves and exhaust safety valve can influence
Exhaust safety valve starts.
The spacing of upper emptying safety valve and blow valve is 2 times of emptying pipe diameter.The guarantee emptying peace that maximum can be limited
The reliability that full valve uses, if interval too small, it is smaller to be vented region between safety valve and blow valve, blow valve and emptying safety
Gas pressure potentially unstable between valve can influence exhaust safety valve startup.
Set safety valve in the present apparatus, can be according to setting value and the deviation of actual value, releasing pressure automatically, in pressure leak process
In, the gas-detecting device that is set on exhaust pipe and blow-down pipe can be according to corresponding safety valve venting duration, to feed back to drum
The warning device of wind turbine host equipment sends alarm.Specifically, corresponding emptying safety valve and exhaust safety valve are respectively provided with gas
Detection device, the gas-detecting device are connected with a controller, and controller is connected with the warning device on air blast machine host.Work as phase
During the safety valve pressure release answered, gas-detecting device can detect safe valve exhaust, and signal is fed back to controller, when exhaust
Between be more than setting value when, controller can judge, and it is higher judge that corresponding manifold pressure continues, controller can be sent out at this time
Go out instruction, control warning device sends alarm, reminds relevant staff.
If corresponding safety valve is only intermittent short time exhaust, illustrate it is only that pressure slightly changes, and it is no special
The situation of (urgent), without excessive human intervention.
Because the guarantee pressure that safety valve can be reliable and stable fluctuates in a certain range, safety valve can be with moment pressure release 4-
8Kpa, when the situation for running into a wide range of disturbance or long period disturbance, safety valve can be normally opened, and host equipment can automatically turn on electronic
The reason for blow valve or staff shut down, short time investigation disturbance.
Under normal conditions, the diameter of exhaust pipe is more than the diameter of blow-down pipe, and, the emptying safety valve setting pressure on blow-down pipe
Power is higher than 10%-15% of exhaust safety valve setting pressure or so on exhaust pipe.Match of pipe diameter is reasonable, can give full play to each
The effect of safety valve.It should be noted that safety valve pressure type selecting according to the diameter of pipeline, application region environment and will generally be set
The requirement of meter type considers.
The invention design is reasonable, can easily be transformed on existing magnetic suspension air blower, easy to operate,
Good operating stability.Corresponding safety valve can suitably automatically begin to pressure release, effectively subtract according to setting value and the deviation of actual value
Light surge or even under most of operating mode, can completely avoid and surge occur, actual effect is very good.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modifications, equivalent replacements and improvements are made should be included in the invention
Protection domain within.
Claims (6)
1. a kind of device for preventing magnetic-suspension high-speed air blower surge, it is characterised in that：Including be arranged on magnetic suspension air blower with
Exhaust pipe between main pipeline, the close position being connected with main pipeline is equipped with controlled valve on the exhaust pipe；The exhaust pipe
Blow-down pipe is equipped with, which connects with exhaust pipe, and the other end is opening；Check-valves is additionally provided on the exhaust pipe
And exhaust safety valve, exhaust safety valve are positioned close to the one side of magnetic suspension air blower；The blow-down pipe be equipped with blow valve and
Safety valve is vented, emptying safety valve is positioned close to the one side of exhaust pipe.
2. a kind of device for preventing magnetic-suspension high-speed air blower surge according to claim 1, it is characterised in that：The row
The close position being connected with magnetic suspension air blower is equipped with corrugated expansion joint on tracheae.
3. a kind of device for preventing magnetic-suspension high-speed air blower surge according to claim 2, it is characterised in that：The ripple
Line pipe compensator is axial consistent with the blowing direction of magnetic suspension air blower gas outlet.
4. a kind of device for preventing magnetic-suspension high-speed air blower surge according to claim 1, it is characterised in that：It is described to open
Closing valve uses Hand-operated butterfly valve.
5. a kind of device for preventing magnetic-suspension high-speed air blower surge according to any one of claims 1 to 4, feature exist
In：The spacing of the exhaust safety valve and check-valves is 2 times of air slit diameter.
6. a kind of device for preventing magnetic-suspension high-speed air blower surge according to any one of claims 1 to 4, feature exist
In：The spacing of the emptying safety valve and blow valve is 2 times of emptying pipe diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721574245.0U CN207454405U (en) | 2017-11-22 | 2017-11-22 | A kind of device for preventing magnetic-suspension high-speed air blower surge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721574245.0U CN207454405U (en) | 2017-11-22 | 2017-11-22 | A kind of device for preventing magnetic-suspension high-speed air blower surge |
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| Publication Number | Publication Date |
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| CN207454405U true CN207454405U (en) | 2018-06-05 |
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| CN201721574245.0U Active CN207454405U (en) | 2017-11-22 | 2017-11-22 | A kind of device for preventing magnetic-suspension high-speed air blower surge |
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| CN (1) | CN207454405U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855338A (en) * | 2019-02-15 | 2019-06-07 | 青岛海尔空调电子有限公司 | Air-cooling magnetic suspended centrifugal unit and its halt control method |
| CN111486263A (en) * | 2020-03-27 | 2020-08-04 | 佛山格尼斯磁悬浮技术有限公司 | Release valve control device, control method and magnetic suspension centrifugal blower |
-
2017
- 2017-11-22 CN CN201721574245.0U patent/CN207454405U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855338A (en) * | 2019-02-15 | 2019-06-07 | 青岛海尔空调电子有限公司 | Air-cooling magnetic suspended centrifugal unit and its halt control method |
| CN109855338B (en) * | 2019-02-15 | 2021-05-25 | 青岛海尔空调电子有限公司 | Air-cooled magnetic suspension centrifugal unit and shutdown control method thereof |
| CN111486263A (en) * | 2020-03-27 | 2020-08-04 | 佛山格尼斯磁悬浮技术有限公司 | Release valve control device, control method and magnetic suspension centrifugal blower |
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