CN219999093U - Main and standby power supply automatic conversion control device for dust removal system and dust removal system - Google Patents
Main and standby power supply automatic conversion control device for dust removal system and dust removal system Download PDFInfo
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- CN219999093U CN219999093U CN202322331618.3U CN202322331618U CN219999093U CN 219999093 U CN219999093 U CN 219999093U CN 202322331618 U CN202322331618 U CN 202322331618U CN 219999093 U CN219999093 U CN 219999093U
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- power supply
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- standby power
- supply circuit
- load
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- 239000000428 dust Substances 0.000 title claims abstract description 38
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The utility model relates to a main and standby power supply automatic conversion control device for a dust removal system and the dust removal system, comprising a main power supply circuit, a standby power supply circuit, a first main and standby power supply switching control loop and a second main and standby power supply switching control loop; the output end of the alternating-current contactor of the main power supply circuit and the output end of the alternating-current contactor of the standby power supply circuit are connected with a load in parallel; the first main and standby power supply switching control loop is used for automatically switching to the standby power supply circuit to supply power for the load when the main power supply circuit supplies power for the load and fails; the second main and standby power supply switching control loop is used for automatically switching to the main power supply circuit to supply power for the load when the standby power supply circuit supplies power for the load and fails. The device has reasonable structure and safe circuit, and when the main power supply circuit fails, the standby power supply circuit is automatically switched in to supply power to the load, so that the system power failure caused by single power failure can be prevented.
Description
Technical Field
The utility model belongs to the technical field of industrial power, and particularly relates to a main and standby power supply automatic conversion control device for a dust removal system and the dust removal system.
Background
The existing power supply circuit of the power distribution cabinet of the dust removal system is generally in a single-path incoming line power supply control mode, and a standby power supply is not provided, so that if an incoming line power supply loop breaks down, power failure can be caused. Or the UPS (Uninterruptible Power Supply ) with higher cost is adopted for storing electricity, when faults or other power failure conditions occur, the equipment can be maintained to operate through a temporary power supply provided by the UPS, and meanwhile, a certain rush repair time is provided for fault relief and power restoration.
However, with the development of power grids and industries, the requirements on power supply reliability of factory production workshops, power distribution cabinets and important electrical equipment which cannot be powered off are higher and higher, and in order to avoid economic loss caused by power failure, an automatic switching control device powered by two paths of power supplies is needed.
Disclosure of Invention
First, the technical problem to be solved
In order to solve the problems in the prior art, the utility model provides a main and standby power supply automatic conversion control device for a dust removal system and the dust removal system.
(II) technical scheme
In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:
the utility model provides a main and standby power supply automatic conversion control device for a dust removal system, which comprises:
the system comprises a main power supply circuit, a standby power supply circuit, a first main and standby power supply switching control loop and a second main and standby power supply switching control loop;
the output end of the alternating-current contactor of the main power supply circuit and the output end of the alternating-current contactor of the standby power supply circuit are connected with a load in parallel;
the first main and standby power supply switching control loop is used for automatically switching to the standby power supply circuit to supply power for the load when the main power supply circuit supplies power for the load and fails;
the second main and standby power supply switching control loop is used for automatically switching to the main power supply circuit to supply power for the load when the standby power supply circuit supplies power for the load and fails.
Optionally, the main power supply circuit includes: a main power supply connection end UaVaWa, a first loop breaker QF01 and a first alternating current contactor KM01;
the main power supply connection end UaVaWa is electrically connected with the main contact input end QF01-1 of the first circuit breaker QF01, the output end U1V1W1 of the first circuit breaker QF01 is electrically connected with the main contact input end KM01-1 of the first alternating current contactor KM01, and the output end of the first alternating current contactor is electrically connected with a load.
Optionally, the standby power supply circuit includes: a standby power supply connection end UbVbWb, a second circuit breaker QF02, a second ac contactor KM02;
the standby power supply connection end UbVbWb is electrically connected with the main contact input end QF02-1 of the second circuit breaker QF02, the output end U2V2W2 of the second circuit breaker QF02 is electrically connected with the main contact input end KM02-1 of the second alternating current contactor KM02, and the output end of the second alternating current contactor is electrically connected with a load.
Optionally, in the first path of main and standby power supply switching control loop, an auxiliary contact QF01-2 of a first loop circuit breaker is electrically connected with a normally closed contact KM02-2 of a second alternating current contactor and a coil KM01-3 of the first alternating current contactor in sequence to form a main power supply circuit for supplying power to a load, and the main power supply circuit is automatically switched to a standby power supply circuit for supplying power to the load when in failure;
in the second main and standby power supply switching control loop, an auxiliary contact QF02-2 of a second loop breaker is sequentially connected with a normally closed contact KM01-2 of a first alternating current contactor and a coil KM02-3 of the second alternating current contactor to form a standby power supply circuit for supplying power to a load, and the standby power supply circuit is automatically switched to the main power supply circuit for supplying power to the load when the standby power supply circuit fails.
Optionally, when the main power supply circuit supplies power to the load and the standby power supply circuit is used as standby, the main contacts and the auxiliary contacts of the first loop breaker QF01 and the second loop breaker QF02 are in a closing state, and the closing time of the first loop breaker QF01 is higher than the closing time of the second loop breaker QF 02;
when the standby power supply circuit supplies power to the load and the main power supply circuit is used as standby, the main contact and the auxiliary contact of the second loop breaker QF02 and the first loop breaker QF01 are in a closing state, and the closing time of the second loop breaker QF02 is higher than the closing time of the first loop breaker QF 01.
Optionally, each component in the main power supply circuit and the standby power supply circuit is electrically connected by adopting a cable.
Optionally, the coil KM01-3 of the first ac contactor KM01 is connected in parallel with the first circuit indicator lamp L1, and when the main power supply circuit supplies power to the load, the first circuit indicator lamp L1 is turned on;
the coil KM02-3 of the second alternating current contactor KM02 is connected in parallel with a second circuit indicator lamp L2, and when the standby power supply circuit supplies power to a load, the second circuit indicator lamp L2 is on.
In a second aspect, the utility model further provides a dust removal system, which comprises a power distribution cabinet, wherein the power distribution cabinet is internally provided with the automatic switching control device for the main power supply and the standby power supply of the dust removal system.
Optionally, the dust removing system is a steel mill dust removing system.
(III) beneficial effects
The automatic switching control device for the main power supply and the standby power supply of the dust removal system has reasonable structural layout, safe use and low cost, can automatically switch into the standby power supply circuit to supply power for a load by means of the first main power supply and standby power supply switching control loop when the main power supply circuit fails, and can prevent the system power failure caused by single power supply failure.
The second main and standby power supply switching control loop is used for automatically switching in the main power supply circuit to supply power to a load when the standby power supply circuit fails, so that the safe power utilization of the load is ensured.
Drawings
Fig. 1 is a schematic diagram of a part of a circuit of a main and standby power automatic conversion control device for a dust removal system according to the present utility model;
fig. 2 is a schematic diagram of a part of a circuit structure of an ac contactor.
Reference numerals illustrate:
a main power supply connection terminal UaVaWa;
the first circuit breaker QF01, the output end U1V1W1 of the first circuit breaker, the main contact input end QF01-1 of the first circuit breaker and the auxiliary contact QF01-2 of the first circuit breaker;
the device comprises a first alternating-current contactor KM01, a main contact input end KM01-1 of the first alternating-current contactor, a normally closed contact KM01-2 of the first alternating-current contactor and a coil KM01-3 of the first alternating-current contactor;
a first circuit indicator light L1;
a standby power supply connection terminal UbVbWb;
the second circuit breaker QF02, a main contact input end QF02-1 of the second circuit breaker and an auxiliary contact QF02-2 of the second circuit breaker;
the second alternating-current contactor KM02, a main contact input end KM02-1 of the second alternating-current contactor, a normally closed contact KM02-2 of the second alternating-current contactor and a coil KM02-3 of the second alternating-current contactor;
and a second circuit indicator lamp L2.
Detailed Description
In order that the above-described aspects may be better understood, exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.
As shown in fig. 1, the present utility model provides a main-standby power automatic switching control device for a dust removal system, the main-standby power automatic switching control device for a dust removal system comprising: the system comprises a main power supply circuit, a standby power supply circuit, a first main and standby power supply switching control loop and a second main and standby power supply switching control loop;
the output end of the alternating current contactor of the main power supply circuit and the output end of the alternating current contactor of the standby power supply circuit are connected with a load in parallel;
the first main and standby power supply switching control loop is used for automatically switching to the standby power supply circuit to supply power for the load when the main power supply circuit supplies power for the load and fails;
the second main and standby power supply switching control loop is used for automatically switching to the main power supply circuit to supply power for the load when the standby power supply circuit supplies power for the load and fails.
As shown in fig. 1, the main power supply circuit of the present embodiment may include: a main power supply connection end UaVaWa, a first loop breaker QF01 and a first alternating current contactor KM01;
the main power supply connection end UaVaWa is electrically connected with the main contact input end QF01-1 of the first circuit breaker QF01, the output end U1V1W1 of the first circuit breaker QF01 is electrically connected with the main contact input end KM01-1 of the first alternating current contactor KM01, and the output end of the first alternating current contactor is electrically connected with a load.
The standby power supply circuit of the present embodiment may include: a standby power supply connection end UbVbWb, a second circuit breaker QF02, a second ac contactor KM02;
the standby power supply connection end UbVbWb is electrically connected with the main contact input end QF02-1 of the second circuit breaker QF02, the output end U2V2W2 of the second circuit breaker QF02 is electrically connected with the main contact input end KM02-1 of the second alternating current contactor KM02, and the output end of the second alternating current contactor is electrically connected with a load.
In this embodiment, each component in the main power supply circuit and the standby power supply circuit is electrically connected by a cable.
In the first path of main and standby power supply switching control loop of the embodiment, an auxiliary contact QF01-2 of a first loop circuit breaker is sequentially and electrically connected with a normally closed contact KM02-2 of a second alternating current contactor and a coil KM01-3 of the first alternating current contactor to form a main power supply circuit for supplying power to a load, and the main power supply circuit is automatically switched to a standby power supply circuit for supplying power to the load when in failure;
in the second primary-secondary power supply switching control loop of the embodiment, an auxiliary contact QF02-2 of a second loop breaker is sequentially connected with a normally closed contact KM01-2 of a first alternating current contactor and a coil KM02-3 of the second alternating current contactor to form a standby power supply circuit for supplying power to a load, and the standby power supply circuit is automatically switched to the primary power supply circuit for supplying power to the load when in failure.
After the main power supply circuit fails, the first loop breaker QF01 is opened, the auxiliary contact QF01-2 of the first loop breaker QF01 is opened after power is lost, the coil of the first alternating current contactor KM01 is lost, the normally closed contact KM01-2 of the first alternating current contactor KM01 is recovered to be closed to switch on the power supply of the second alternating current contactor coil KM02-3, the power supply mode of the standby power supply circuit is automatically switched, and the main power supply circuit is cut off.
At this moment, standby power supply supplies power, the switch board of dust pelletizing system normally supplies power and provides time for main power supply circuit overhauls, when main power supply circuit repair back recloses first return circuit breaker QF01, main power supply circuit is in standby state this moment, when standby power supply circuit power failure, second return circuit breaker QF02 disconnection, disconnection after the auxiliary contact of second return circuit breaker QF02 loses power, second alternating current contactor KM02 coil loses power, second alternating current contactor KM02 normally closed contact resumes the power supply of closing switch-on first alternating current contactor KM01 coil, automatic switch-over to main power supply circuit's power supply mode.
Before the main power supply and the standby power supply are supplied with power, the first loop breaker QF01 is closed preferentially, the auxiliary contact of the first loop breaker QF01 is connected with the coil of the first alternating current contactor KM01 after being electrified, and the normally closed contact of the coil of the first alternating current contactor KM01 is disconnected to cut off the power supply of the coil of the second alternating current contactor KM02 after being electrified, so that the main power supply supplies power.
The auxiliary contact of the second circuit breaker QF02 is connected into the second main and standby power supply switching control circuit. Before the main power supply and the standby power supply are supplied, the second circuit breaker QF02 is closed after the first circuit breaker QF01 is closed, and auxiliary contacts of the second circuit breaker QF02 are connected so as to ensure that the main power supply supplies power and the standby power supply is in a standby state.
The first ac contactor KM01 of the present embodiment includes: three-phase main contact, a group of auxiliary normally closed contacts and a coil with control voltage of 220V are shown in figure 2.
When the main power supply circuit supplies power to the load and the standby power supply circuit is used as standby, the main contacts and the auxiliary contacts of the first loop circuit breaker QF01 and the second loop circuit breaker QF02 are in a closing state, and the closing time of the first loop circuit breaker QF01 is higher than the closing time of the second loop circuit breaker QF 02;
when the standby power supply circuit supplies power to the load and the main power supply circuit is used as standby, the main contact and the auxiliary contact of the second loop breaker QF02 and the first loop breaker QF01 are in a closing state, and the closing time of the second loop breaker QF02 is higher than the closing time of the first loop breaker QF 01.
In practice, when the power is transmitted for the first time, the time of the two paths of closing power transmission is inconsistent, and the main power supply loop is the one which performs closing power transmission first.
In fig. 1, a coil KM01-3 of a first ac contactor KM01 is connected in parallel with a first circuit indicator L1, and when a main power supply circuit supplies power to a load, the first circuit indicator L1 is on;
the coil KM02-3 of the second alternating current contactor KM02 is connected in parallel with a second circuit indicator lamp L2, and when the standby power supply circuit supplies power to a load, the second circuit indicator lamp L2 is on.
In this embodiment, the components of the standby power supply circuit and the components of the main power supply circuit are the same, and the voltage levels of the standby power supply circuit and the main power supply circuit are all the voltage levels of a three-phase power structure, such as 380VAC.
In addition, the embodiment of the utility model also provides a dust removal system, which is characterized by comprising a power distribution cabinet, wherein the automatic switching control device for the main power supply and the standby power supply of the dust removal system, which is described in any embodiment, is installed in the power distribution cabinet.
For example, the dust removal system of the present embodiment may be a steel mill dust removal system.
The automatic switching control device for the main power supply and the standby power supply of the dust removal system is reasonable in structural layout, safe to use and low in cost, and can automatically switch into the standby power supply circuit to supply power for a load by means of the first main power supply and standby power supply switching control loop when the main power supply circuit fails, so that system power failure caused by single power supply failure can be prevented.
In addition, the second main and standby power supply switching control loop is used for automatically switching in the main power supply circuit to supply power to the load when the standby power supply circuit fails, so that the safe power utilization of the load is ensured.
In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the utility model.
Claims (9)
1. An automatic switching control device of main and standby power supplies for a dust removal system, comprising:
the system comprises a main power supply circuit, a standby power supply circuit, a first main and standby power supply switching control loop and a second main and standby power supply switching control loop;
the output end of the alternating-current contactor of the main power supply circuit and the output end of the alternating-current contactor of the standby power supply circuit are connected with a load in parallel;
the first main and standby power supply switching control loop is used for automatically switching to the standby power supply circuit to supply power for the load when the main power supply circuit supplies power for the load and fails;
the second main and standby power supply switching control loop is used for automatically switching to the main power supply circuit to supply power for the load when the standby power supply circuit supplies power for the load and fails.
2. The automatic switching control device for main and standby power supply of dust removing system according to claim 1, wherein,
the main power supply circuit includes: a main power supply connection (UaVaWa), a first circuit breaker (QF 01) and a first alternating current contactor (KM 01);
the main power supply connection (UaVaWa) is electrically connected to the main contact input (QF 01-1) of the first circuit breaker (QF 01), the output (U1V 1W 1) of the first circuit breaker (QF 01) is electrically connected to the main contact input (KM 01-1) of the first AC contactor (KM 01), and the first AC contactor output is electrically connected to a load.
3. The automatic switching control device for main and standby power supply of dust removing system according to claim 2, wherein,
the standby power supply circuit includes: a standby power supply connection terminal (UbVbWb), a second circuit breaker (QF 02), a second ac contactor (KM 02);
the standby power supply connection end (UbVbWb) is electrically connected with the main contact input end (QF 02-1) of the second circuit breaker (QF 02), the output end (U2V 2W 2) of the second circuit breaker (QF 02) is electrically connected with the main contact input end (KM 02-1) of the second alternating current contactor (KM 02), and the output end of the second alternating current contactor is electrically connected with a load.
4. The automatic switching control device for main and standby power supply of dust removing system according to claim 3, wherein,
in the first path of main and standby power supply switching control loop, an auxiliary contact (QF 01-2) of a first loop circuit breaker is sequentially and electrically connected with a normally closed contact (KM 02-2) of a second alternating current contactor and a coil (KM 01-3) of the first alternating current contactor to form a main power supply circuit for supplying power to a load and automatically switching to a standby power supply circuit for supplying power to the load when in failure;
in the second main and standby power supply switching control loop, a normally closed contact point (KM 01-2) of a first alternating current contactor and a coil (KM 02-3) of a second alternating current contactor are sequentially connected with an auxiliary contact point (QF 02-2) of a second loop breaker, so that a standby power supply circuit is formed for supplying power to a load, and the auxiliary contact point is automatically switched to the main power supply circuit for supplying power to the load when the auxiliary contact point fails.
5. A main-standby power automatic switching control device for a dust removal system according to claim 3, characterized in that when the main power supply circuit supplies power to a load and the standby power supply circuit is standby, the main contacts and auxiliary contacts of the first circuit breaker (QF 01) and the second circuit breaker (QF 02) are in a closing state, and the closing time of the first circuit breaker (QF 01) is earlier than the closing time of the second circuit breaker (QF 02);
when the standby power supply circuit supplies power to a load and the main power supply circuit is used as standby, the main contact and the auxiliary contact of the second loop circuit breaker (QF 02) and the first loop circuit breaker (QF 01) are in a closing state, and the closing time of the second loop circuit breaker (QF 02) is earlier than that of the first loop circuit breaker (QF 01).
6. The automatic switching control device for main and backup power supplies for a dust removing system according to claim 3, wherein each component of the main power supply circuit and the backup power supply circuit is electrically connected by a cable.
7. A main and standby power automatic switching control device for a dust removing system according to claim 3, characterized in that the coil (KM 01-3) of the first ac contactor (KM 01) is connected in parallel with a first circuit indicator lamp (L1), and the first circuit indicator lamp (L1) is turned on when the main power supply circuit supplies power to the load;
and a coil (KM 02-3) of the second alternating current contactor (KM 02) is connected in parallel with a second circuit indicator lamp (L2), and when the standby power supply circuit supplies power to a load, the second circuit indicator lamp (L2) is on.
8. The dust removing system is characterized by comprising a power distribution cabinet, wherein the power distribution cabinet is internally provided with the main and standby power supply automatic conversion control device for the dust removing system according to any one of claims 1 to 7.
9. The dust removal system of claim 8, wherein the dust removal system is a steel mill dust removal system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322331618.3U CN219999093U (en) | 2023-08-29 | 2023-08-29 | Main and standby power supply automatic conversion control device for dust removal system and dust removal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322331618.3U CN219999093U (en) | 2023-08-29 | 2023-08-29 | Main and standby power supply automatic conversion control device for dust removal system and dust removal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219999093U true CN219999093U (en) | 2023-11-10 |
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ID=88613013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322331618.3U Active CN219999093U (en) | 2023-08-29 | 2023-08-29 | Main and standby power supply automatic conversion control device for dust removal system and dust removal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219999093U (en) |
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2023
- 2023-08-29 CN CN202322331618.3U patent/CN219999093U/en active Active
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