CN114256966A - Prevent air-blower power supply system of outage - Google Patents
Prevent air-blower power supply system of outage Download PDFInfo
- Publication number
- CN114256966A CN114256966A CN202111620424.4A CN202111620424A CN114256966A CN 114256966 A CN114256966 A CN 114256966A CN 202111620424 A CN202111620424 A CN 202111620424A CN 114256966 A CN114256966 A CN 114256966A
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- CN
- China
- Prior art keywords
- power supply
- switch
- input end
- line
- bypass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003068 static effect Effects 0.000 claims abstract description 12
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims 1
- 238000005461 lubrication Methods 0.000 claims 1
- 239000010687 lubricating oil Substances 0.000 abstract description 8
- 230000009191 jumping Effects 0.000 abstract description 4
- 239000003034 coal gas Substances 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/06—Lubrication
- F04D29/063—Lubrication specially adapted for elastic fluid pumps
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a power-off prevention blower power supply system which comprises a plurality of input ends and an output end, wherein the input ends comprise a bypass input end and a rectification charging input end used as an emergency power supply input end; a bypass static switch is connected in series between the bypass input end and the output end; the rectification charging input end is applied to an EPS uninterrupted power supply type emergency power supply; an EPS uninterrupted power supply is additionally arranged to serve as a third circuit to supply power to a fan lubricating oil pump, uninterrupted power supply is realized, a circuit breaker is additionally arranged at an EPS output end and is led to an input end of a control power supply of a high-voltage frequency converter, the control part of the frequency converter is kept to be normally supplied with power, and the situation that the high-voltage frequency converter cannot be started or a coal gas blower is jumped due to low-voltage power swing is prevented; therefore, the problem of the jumping of the blower unit caused by the fluctuation of the interference of the low-voltage power supply system can be effectively solved, the long-period stable operation of the blower unit is realized, and the economic benefit and the environmental protection benefit are extremely high.
Description
Technical Field
The invention relates to the field of electric power, in particular to an anti-power-off air blower power supply system.
Background
The gas blower set in the chemical production workshop bears the important tasks of conveying gas and communicating the whole production flow and belongs to the heart equipment of coking companies. Once the blower is suddenly stopped, the production of the whole company falls into a paralysis state, and the environment protection aspect of the dispersion of the coke oven gas also brings huge negative effects. In the past, the accident of air blower vehicle jumping caused by unstable low-voltage power supply system and power interference often occurs, the reason is mainly that the power interference of a low-voltage control loop of the air blower and a high-voltage frequency converter fluctuates, and short-time power failure causes interlocking protection vehicle jumping.
Disclosure of Invention
The invention aims to solve the defects that the blower jumps due to unstable low-voltage power supply system and electricity interference and the blower is damaged greatly in the prior art, and provides an anti-power-off blower power supply system.
In order to achieve the purpose, the invention adopts the following technical scheme:
the power supply system comprises a plurality of input ends and an output end, wherein the input ends comprise a bypass input end and a rectification charging input end used as an emergency power supply input port, and the bypass input end and the rectification charging input end are both in output connection with the output end; a bypass static switch is connected in series between the bypass input end and the output end; the rectification charging input end is applied to an EPS uninterrupted power supply type emergency power supply.
Preferably, a rectifying charger, a storage battery pack, an inverter and an inverting static switch are sequentially connected in series between the rectifying charging input end and the rectifying charging output end according to the flowing direction of current.
Preferably, two lines are connected between the bypass input end and the output end, the bypass static switch is connected in series on the first line, and the first switch serving as a manual maintenance bypass switch is arranged on the second line; a second switch is also provided on the first line as a bypass switch.
Preferably, a third switch as an output switch is arranged on a second line of the bypass input end and the output end; and a connection line between the rectifying charging input end and the output end is set as a third line, and the third switch is connected in series on the second line and the third line.
Preferably, a fourth switch serving as a rectification switch and a fifth switch serving as a direct current switch are further disposed on the third line.
Preferably, the output end is connected with a fan lubricating oil pump.
Preferably, the working method is that an EPS uninterrupted power supply formed by a third line is connected with a fan lubricating oil pump power supply from the EPS to realize uninterrupted power supply, and when the tripping of the second line occurs, the third line maintains power supply.
The invention has the beneficial effects that: an EPS uninterrupted power supply is additionally arranged to serve as a third circuit to supply power to a fan lubricating oil pump, uninterrupted power supply is realized, a circuit breaker is additionally arranged at an EPS output end and is led to an input end of a control power supply of a high-voltage frequency converter, the control part of the frequency converter is kept to be normally supplied with power, and the situation that the high-voltage frequency converter cannot be started or a coal gas blower is jumped due to low-voltage power swing is prevented; therefore, the problem of the jumping of the blower unit caused by the fluctuation of the interference of the low-voltage power supply system can be effectively solved, the long-period stable operation of the blower unit is realized, the safe and environment-friendly production is ensured, and the economic benefit and the environment-friendly benefit are extremely high.
Drawings
Fig. 1 is a schematic structural diagram of the power supply system according to the present invention.
Reference numbers in the figures: the circuit comprises a bypass input end 1, a rectifying charging input end 2, a first switch 3, a second switch 4, a bypass static switch 5, a third switch 6, an output end 7, a fourth switch 8, a rectifying charger 9, a storage battery pack 10, a fifth switch 11, an inverter 12 and an inversion static switch 13.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Refer to fig. 1. A power supply system of a power-off prevention blower comprises a plurality of input ends and an output end 7, wherein the input ends comprise a bypass input end 1 and a rectification charging input end 2 used as an emergency power supply input port, and the bypass input end 1 and the rectification charging input end 2 are both in output connection with the output end 7; a bypass static switch 5 is connected in series between the bypass input end 1 and the output end 7; the rectification charging input end 2 is applied to an EPS uninterrupted power supply type emergency power supply.
In the present embodiment, a rectifier charger 9, a battery pack 10, an inverter 12, and an inverter static switch 13 are connected in series in this order in the direction of current flow between the rectifier charging input terminal 2 and the output terminal 7.
In the embodiment, two lines are connected between a bypass input end 1 and an output end 7, a bypass static switch 5 is connected in series on the first line, and a first switch 3 serving as a manual maintenance bypass switch is arranged on the second line; a second switch 4 is also provided on the first line as a bypass switch.
In the present embodiment, a third switch 6 as an output switch is provided on a second line bypassing the input terminal 1 and the output terminal 7; the connection line of the rectifying charging input end 2 and the output end 7 is set as a third line, and the third switch 6 is connected in series with the second line and the third line.
In this embodiment, the fourth switch 8 as a rectifying switch and the fifth switch 11 as a dc switch are further provided on the third line.
In this embodiment, the output end 7 is connected with a fan lubricating oil pump.
In the embodiment, the working method is that the EPS uninterrupted power supply formed by the third line is connected with the fan lubricating oil pump power supply from the EPS to realize uninterrupted power supply, and when the tripping of the second line occurs, the third line maintains power supply.
For preventing the problem of air-blower trip that the low voltage power supply system shaking electricity undulant, short time outage suddenly lead to, to the problem that air-blower unit lubricating oil pump and high-voltage inverter control circuit exist, the concrete solution is: an EPS uninterrupted power supply is additionally arranged, and a fan lubricating oil pump power supply is connected from the EPS, so that uninterrupted power supply is realized. The EPS output end is added with a breaker and is led to the control power supply input end of the high-voltage frequency converter, so that the power supply of the control part of the frequency converter is kept normal, and the situation that the high-voltage frequency converter cannot be started or a coal gas blower jumps due to low-voltage electricity shaking is prevented.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" 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" or "second" 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 specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The power supply system of the blower for preventing power failure is characterized by comprising a plurality of input ends and an output end (7), wherein the input ends comprise a bypass input end (1) and a rectification charging input end (2) used as an emergency power supply input port, and the bypass input end (1) and the rectification charging input end (2) are both in output connection with the output end (7); a bypass static switch (5) is connected in series between the bypass input end (1) and the output end (7); the rectification charging input end (2) is applied to an EPS uninterrupted power supply type emergency power supply.
2. The power supply system of the blower capable of preventing power failure as claimed in claim 1, wherein a rectifying charger (9), a storage battery pack (10), an inverter (12) and an inverting static switch (13) are connected in series between the rectifying charging input end (2) and the output end (7) in sequence according to the flowing direction of current.
3. The power supply system of the blower for preventing power failure as claimed in claim 2, characterized in that two lines are connected between the bypass input end (1) and the output end (7), the bypass static switch (5) is connected in series on the first line, and the first switch (3) as a manual maintenance bypass switch is arranged on the second line; a second switch (4) as a bypass switch is also arranged on the first circuit.
4. A power supply system for a power-fail-safe blower as claimed in claim 3, characterized in that a third switch (6) is provided as an output switch on a second line of the bypass input (1) and the output (7); and a connection line of the rectifying and charging input end (2) and the output end (7) is set as a third line, and the third switch (6) is connected in series on the second line and the third line.
5. The power supply system of the blower for preventing power failure as claimed in claim 4, characterized in that a fourth switch (8) as a rectifier switch and a fifth switch (11) as a DC switch are further arranged on the third line.
6. The power supply system of an outage-proof blower according to claim 1, characterized in that a blower lubrication pump is connected to the output (7).
7. The system as claimed in claim 6, wherein the operation method is that the EPS uninterruptible power supply formed by the third line connects the fan lubricating pump power source to the EPS to realize uninterruptible power supply, and when the trip of the second line occurs, the third line maintains power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111620424.4A CN114256966A (en) | 2021-12-28 | 2021-12-28 | Prevent air-blower power supply system of outage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111620424.4A CN114256966A (en) | 2021-12-28 | 2021-12-28 | Prevent air-blower power supply system of outage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114256966A true CN114256966A (en) | 2022-03-29 |
Family
ID=80798295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111620424.4A Pending CN114256966A (en) | 2021-12-28 | 2021-12-28 | Prevent air-blower power supply system of outage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114256966A (en) |
-
2021
- 2021-12-28 CN CN202111620424.4A patent/CN114256966A/en active Pending
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