CN212429264U - Magnetic suspension air-blower outage protection system - Google Patents
Magnetic suspension air-blower outage protection system Download PDFInfo
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- CN212429264U CN212429264U CN202020985535.XU CN202020985535U CN212429264U CN 212429264 U CN212429264 U CN 212429264U CN 202020985535 U CN202020985535 U CN 202020985535U CN 212429264 U CN212429264 U CN 212429264U
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- blower
- magnetic suspension
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- controller
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Abstract
The utility model provides a magnetic suspension air-blower outage protection system, including inlet wire reactor ACR, inlet wire reactor ACR one end is connected to the inlet wire power cord, the other end is connected to the R of converter, S, the T terminal, converter output terminal U, V, W is connected to air-blower motor' S wiring end through output reactor OCR electricity, air-blower motor signal connection is to the magnetic bearing cable interface of magnetic suspension controller, the direct current reactor connecting terminal of converter is connected to direct current reactor DCR, direct current bus voltage is all exported to the direct current bus output of converter and external braking unit binding post, be connected to the DC-and the DC-terminal of magnetic suspension controller respectively, the R1a of converter, R1c terminal output power down signal gives the air-blower controller. Magnetic suspension air-blower power-off protection system, adopt the original converter of air-blower, realize the power-off protection function under the hardware cost condition not increasing, the system is simple more reliable, has practiced thrift the space.
Description
Technical Field
The utility model belongs to the air-blower control field especially relates to a magnetic suspension air-blower outage protection system.
Background
The core components of the magnetic suspension blower are a magnetic suspension bearing and a controller, and the bearing and the controller are required to be electrically driven, so that a power supply source during the operation of the electromagnetic bearing is required to be reliable and uninterrupted. Thereby avoiding accidental damage caused by sudden power failure. In case of sudden power failure, the controller of the blower also needs to maintain power supply to ensure the controllable state of the blower and stop the blower smoothly. The UPS or the capacitor is additionally arranged to provide continuous power supply after power failure, and the two modes have the same problems that the UPS or the capacitor needs to be additionally arranged independently, the economic cost is increased, and the volume is large and the occupied space is large.
Disclosure of Invention
In view of this, the utility model aims at providing a magnetic suspension air-blower outage protection system to solve current outage protection system and need install the hardware additional alone, economic cost is high, occupies bulky problem.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a magnetic suspension blower power-off protection system comprises a blower controller, a frequency converter, a magnetic suspension controller and an inlet wire reactor ACR, wherein one end of the inlet wire reactor ACR is connected to an inlet wire power supply line, the other end of the inlet wire reactor ACR is connected to a R, S, T terminal of the frequency converter to supply power to the frequency converter, an output terminal U, V, W of the frequency converter is connected to an output reactor OCR, the output reactor OCR is electrically connected to a wiring terminal of a blower motor, the blower motor is connected to a magnetic bearing cable interface of the magnetic suspension controller in a signal mode, a direct current reactor connecting terminal of the frequency converter is connected to a direct current reactor DCR, a direct current bus output end of the frequency converter and an external brake unit wiring terminal output direct current bus voltage and are respectively connected to a DC + terminal and a DC-terminal of the magnetic suspension controller; the magnetic levitation controller outputs a DC24V power supply to power the blower controller.
Further, the type of the frequency converter is EG100 series.
Further, the specification of the magnetic suspension controller is EMC-A series.
Further, the blower controller is a PLC.
Compared with the prior art, magnetic suspension air-blower outage protection system have following advantage:
(1) magnetic suspension air-blower power-off protection system, when the inlet wire power has a power failure suddenly, air-blower motor freely parks in-process repayment electric energy to converter direct current bus, converter direct current bus lasts for the power supply of magnetic suspension controller, converter output power down signal gives air-blower controller PLC, air-blower controller PLC carries out the fault shutdown procedure, the air-blower is shut down safely.
(2) Magnetic suspension air-blower power-off protection system, adopt the original converter of air-blower, realize the power-off protection function under the hardware cost condition not increasing, the system is simple more reliable, has practiced thrift the space.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a circuit diagram of a power-off protection system of a magnetic suspension blower according to an embodiment of the present invention.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The noun explains:
PE line: english is called protecting earth, and the simplified Chinese name is called protecting conductor, namely earth wire.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
A magnetic suspension blower power-off protection system comprises a blower controller, a frequency converter and a magnetic suspension controller, wherein one end of an inlet wire reactor ACR is connected to an inlet wire power supply line, the other end of the inlet wire reactor ACR is connected to R, S and T terminals of the frequency converter to supply power to the frequency converter, output terminals U, V and W of the frequency converter are connected to an output reactor OCR, the output reactor OCR is electrically connected to a wiring terminal of a blower motor, the blower motor is connected to a magnetic bearing cable interface of the magnetic suspension controller in a signal mode, a direct current reactor connecting terminal of the frequency converter is connected to a direct current reactor DCR, a direct current bus output end of the frequency converter and a wiring terminal of an external braking unit output direct current bus voltage which are respectively connected to a DC + terminal and a DC-terminal of the magnetic suspension controller, and R1a and R1; the magnetic levitation controller outputs a DC24V power supply to power the blower controller.
And the reactor ACR, the reactor OCR, the frequency converter, the blower motor and the magnetic suspension controller are all connected to the PE wire.
The reactor ACR, the reactor OCR and the reactor DCR are all universal reactors.
The frequency converter is a flying frequency converter EG100 series.
The magnetic suspension controller is a flying magnetic suspension controller EMC-A series.
The blower controller is a PLC, and the model of the PLC is Siemens S7-1500 series.
The working principle of the magnetic suspension blower power-off protection system is as follows:
one end of an incoming line reactor ACR is connected to an incoming line power line, the other end of the incoming line reactor ACR is connected to R, S and T terminals of a frequency converter to supply power to the frequency converter, output terminals U, V and W of the frequency converter are connected to an output reactor OCR, the output reactor OCR is electrically connected to a wiring terminal of a blower motor, the blower motor is connected to a magnetic bearing cable interface of a magnetic suspension controller in a signal mode, and +1 and +2 terminals of the frequency converter are connected to a direct current reactor DCR and +2 and-2 terminals of the frequency converter; the R1a and R1c terminals of the frequency converter output power-down signals to the blower controller PLC; the magnetic suspension controller outputs a DC24V power supply to supply power to a PLC (blower controller); when the magnetic bearing works normally, the direct current bus of the frequency converter outputs power to the magnetic suspension controller to ensure the magnetic bearing to work normally; a power supply processing module in the magnetic suspension controller reduces the voltage of the direct current bus to DC24V and outputs the voltage to a blower controller PLC for supplying power;
when the incoming line power supply is suddenly powered off, the electric energy is fed back to the direct-current bus of the frequency converter in the free stop process of the blower motor, the direct-current bus of the frequency converter continuously supplies power to the magnetic suspension controller, the frequency converter outputs a power-down signal to the blower controller PLC, the blower controller PLC executes a fault shutdown program, and the blower is safely shut down.
The system adopts the original frequency converter of the air blower, realizes the power-off protection function under the condition of not increasing the hardware cost, is simpler and more reliable, and saves the space.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a magnetic suspension air-blower outage protection system which characterized in that: the system comprises a blower controller, a frequency converter, a magnetic suspension controller and an inlet wire reactor ACR, wherein one end of the inlet wire reactor ACR is connected to an inlet wire power supply line, the other end of the inlet wire reactor ACR is connected to a R, S, T terminal of the frequency converter to supply power to the frequency converter, an output terminal U, V, W of the frequency converter is connected to an output reactor OCR, the output reactor OCR is electrically connected to a terminal of a blower motor, the blower motor is connected to a magnetic bearing cable interface of the magnetic suspension controller through signals, a connecting terminal of a direct current reactor of the frequency converter is connected to a direct current reactor DCR, a direct current bus output end of the frequency converter and a connecting terminal of an external brake unit both output direct current bus voltage and are respectively connected to a DC + terminal and a DC-terminal of the; the magnetic levitation controller outputs a DC24V power supply to power the blower controller.
2. The magnetic suspension blower power-off protection system as claimed in claim 1, characterized in that: the type of the frequency converter is EG100 series.
3. The magnetic suspension blower power-off protection system as claimed in claim 1, characterized in that: the specification of the magnetic suspension controller is EMC-A series.
4. The magnetic suspension blower power-off protection system as claimed in claim 1, characterized in that: the blower controller is a PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020985535.XU CN212429264U (en) | 2020-06-02 | 2020-06-02 | Magnetic suspension air-blower outage protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020985535.XU CN212429264U (en) | 2020-06-02 | 2020-06-02 | Magnetic suspension air-blower outage protection system |
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| Publication Number | Publication Date |
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| CN212429264U true CN212429264U (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020985535.XU Active CN212429264U (en) | 2020-06-02 | 2020-06-02 | Magnetic suspension air-blower outage protection system |
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| CN (1) | CN212429264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915157A (en) * | 2021-12-13 | 2022-01-11 | 天津飞旋科技股份有限公司 | Power-off testing method and device for magnetic suspension molecular pump and master control equipment |
-
2020
- 2020-06-02 CN CN202020985535.XU patent/CN212429264U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915157A (en) * | 2021-12-13 | 2022-01-11 | 天津飞旋科技股份有限公司 | Power-off testing method and device for magnetic suspension molecular pump and master control equipment |
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