CN211778137U - Cooling fan emergency operation device and fan cooling system for transformer - Google Patents
Cooling fan emergency operation device and fan cooling system for transformer Download PDFInfo
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- CN211778137U CN211778137U CN201921991184.7U CN201921991184U CN211778137U CN 211778137 U CN211778137 U CN 211778137U CN 201921991184 U CN201921991184 U CN 201921991184U CN 211778137 U CN211778137 U CN 211778137U
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Abstract
The utility model relates to a transformer cooling system field discloses a cooling blower fan promptly puts in operation fan cooling system for device and transformer, including control signal generating circuit and power module. The control signal generating circuit is used for generating a control signal of stable voltage or stable current. The power module includes a battery and a power circuit. The power module is used for providing a stable power supply. When the fan controller fails to control the normal operation of the fan, the change-over switch is adjusted, so that the control signal generated by the control signal generating circuit is switched on to the fan, and the fan continues to operate. The cooling fan emergency operation device can generate a control signal to replace a controller to output a maximum rotating speed command, so that the cooling fan is forcibly put into operation at the maximum rotating speed. And economic loss caused by the shutdown of the fan due to the fault of the controller is avoided.
Description
Technical Field
The utility model relates to a transformer cooling system field particularly, relates to a fan cooling system for cooling fan promptly puts in operation device and transformer.
Background
A large amount of heat is generated during the operation of the transformer. In the prior art, an air cooling system is adopted for dissipating heat of a transformer. The method aims at the weak link existing in the running mode that a PLC (programmable logic controller) used by a transformer air cooling system in the prior art sends start-stop and rotating speed instructions, and a cooling fan operates according to the instructions to cool a transformer, namely when the PLC fails due to faults or power loss, the cooling fan controlled by the PLC stops running due to the loss of the rotating speed instructions, the temperature of the transformer rises rapidly in a short time, and serious consequences such as forced shutdown and even ignition and combustion of the transformer are caused. Due to the complexity of the air cooling control system realized by the PLC, the time required for recovering the faults is different from 1 hour to 1 day, and the timeliness requirement for processing the emergency faults is difficult to meet.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cooling blower promptly puts into operation device, it can replace PLC output maximum rotational speed order, makes cooling blower force to drop into the operation at maximum rotational speed.
The embodiment of the utility model is realized like this:
the utility model provides a cooling blower promptly puts into operation device which characterized by: the device comprises a control signal generating circuit and a power supply module;
the power supply input end of the control signal generating circuit is connected with the power supply output end of the power supply module; the control signal generating circuit is used for generating a control signal of stable voltage or stable current;
the power supply module comprises a battery and a power supply circuit; two electrodes of the battery are connected with a power input end of the power circuit; the power supply output end of the power supply circuit is connected with the power supply input end of the control signal generating circuit; the power module is used for providing a stable power supply.
Further, the control signal generating circuit is provided with 20 paths; and the control signal output end of each control signal generating circuit is respectively connected with a signal connecting jack.
Further, the control signal output by the control signal output end of the control signal generation circuit is a 20mA control signal.
The utility model provides a fan cooling system for transformer, characterized by: the emergency operation device comprises a controller, a fan, a signal switching circuit and the cooling fan emergency operation device; the control signal output end of one path of the control signal generating circuit is connected with one signal input end of the signal switching circuit; the other signal input end of the signal switching circuit is connected with the control signal output end of the controller; and the signal output end of the signal switching circuit is connected with the control signal input end of the fan.
Further, the controller is a PLC.
Further, the signal switching circuit is a change-over switch; the control signal output end of one path of the control signal generating circuit is connected with one signal input end of the change-over switch; the other signal input end of the change-over switch is connected with the control signal output end of the controller; and the signal output end of the change-over switch is connected with the control signal input end of the fan.
Further, the signal switching circuit includes a relay; a coil of the relay is connected in series between the controller and a control signal input end of the fan; and the normally closed contact of the relay is connected between the control signal output end of the control signal generating circuit and the control signal input end of the fan in series.
The utility model has the advantages that:
when the fan controller fails and the fan cannot be controlled to normally run, the control signal output end of the control signal generating circuit of the cooling fan emergency operation device is connected to the control signal input end of the fan. So that the control signal generated by the control signal generating circuit is communicated to the fan to further enable the fan to continue to operate.
The cooling fan emergency operation device can generate a control signal to replace a controller to output a maximum rotating speed command, so that the cooling fan is forcibly put into operation at the maximum rotating speed. And economic loss caused by the shutdown of the fan due to the fault of the controller is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic composition diagram of the cooling fan emergency commissioning device of the present invention;
fig. 2 is a circuit diagram of the control signal generating circuit of the present invention.
Fig. 3 is a schematic view of the fan cooling system for transformer of the present invention.
Icon: 1-change over switch, 2-blower.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Example (b):
referring to fig. 1, the present embodiment provides an emergency commissioning device for a cooling fan, which includes a control signal generating circuit and a power module.
The circuit of the control signal generating circuit is shown in fig. 2. The power supply input end of the control signal generating circuit is connected with the power supply output end of the power supply module. The control signal generating circuit is used for generating a control signal of stable voltage or stable current. Typically, the control signal may be a 4-20mA current signal or a 1-5V voltage signal. In this embodiment, the control signal generating circuit is used to generate a stable current of 20 mA. After a control signal of 20mA is input to the fan 2, the fan 2 is operated at full speed.
The power module includes a battery and a power circuit. Two electrodes of the battery are connected with the power input end of the power circuit. The power output end of the power circuit is connected with the power input end of the control signal generating circuit. The power module is used for providing a stable power supply.
When the control signal generating circuit is used, the control signal output end of the control signal generating circuit is connected to one input end of the change-over switch 1, and the signal input end of the fan 2 controller is connected to the other input end of the change-over switch 1. The output end of the change-over switch 1 is connected to the control signal input end of the fan 2. When the controller of the fan 2 fails and the fan 2 cannot be controlled to normally operate, the change-over switch 1 is adjusted, so that the control signal generated by the control signal generating circuit is switched on to the fan 2, and the fan 2 continues to operate.
The cooling fan emergency operation device can generate a control signal to replace a controller to output a maximum rotating speed command, so that the cooling fan 2 is forcibly put into operation at the maximum rotating speed. And economic loss caused by the shutdown of the fan 2 due to controller failure is avoided.
Meanwhile, the cooling fan emergency operation device is provided with a power module. When the control signal generating circuit is used, the control signal output end of the control signal generating circuit is connected to one input end of the change-over switch 1 through a lead, and external power supply is not needed. This just makes this device practical nimble convenient, control fan 2 that can be convenient, and emergency ability is strong.
In this embodiment, the control signal generating circuit is provided with 20 paths. So that one device can control 20 fans 2 at the same time. The control signal output end of each control signal generating circuit is respectively connected with a signal connecting jack. A signal connecting plug is arranged in the matching way of the signal connecting jack. The signal connection plug can be inserted into the signal connection jack and the matching of the signal connection plug and the signal connection jack is similar to the matching of a 3.5mm earphone plug and an earphone jack. The other end of the signal connecting plug is provided with a lead connected with the change-over switch 1.
The signal connection jack is arranged to facilitate the connection of the device and the change-over switch 1, so that the device can be quickly connected to the fan 2 and then quickly control the operation of the fan 2.
The utility model also provides a fan cooling system for transformer, as shown in fig. 3, it includes controller, fan 2, signal switching circuit and foretell cooling blower promptly puts into operation device. The control signal output end of one path of control signal generating circuit is connected with one signal input end of the signal switching circuit. And the other signal input end of the signal switching circuit is connected with the control signal output end of the controller. The signal output end of the signal switching circuit is connected with the control signal input end of the fan 2. In practice, the signal switching circuit may be the transfer switch 1 and the controller may be a PLC. The control signal output end of one path of control signal generating circuit is connected with one signal input end of the change-over switch 1. The other signal input end of the change-over switch 1 is connected with the control signal output end of the controller. The signal output end of the change-over switch 1 is connected with the control signal input end of the fan 2.
During the use, when PLC controller trouble can't control radiator fan 2, rotatory change over switch 1 rotation makes the control signal switch-on that the control signal generating circuit produced to fan 2 and then makes fan 2 continue the operation. When the PLC controller fails, the portable transformer cooling fan 2 emergency operation device can be quickly connected into the control circuit of the fan 2, and accidents such as high-temperature ignition of the transformer and the like caused by long-time incapability of operating the fan 2 are avoided. Meanwhile, the portable transformer cooling fan 2 emergency commissioning device can replace the PLC to drive the fan 2 to run at the highest rotating speed, so that the heat dissipation effect is guaranteed, and the time is strived for the maintenance of the PLC.
In this embodiment, the signal switching circuit includes a relay. The coil of the relay is connected in series between the controller and the control signal input end of the fan 2. And a normally closed contact of the relay is connected in series between the control signal output end of the control signal generating circuit and the control signal input end of the fan 2.
When the PLC normally outputs a control signal, the coil of the relay is electrified, so that the circuit of the portable transformer cooling fan 2 emergency operation device connected with the fan 2 is disconnected. At the moment, the fan 2 normally operates under the control of the PLC. When the PLC fails and cannot send a control signal, the coil of the relay is powered off, and the normally closed contact of the relay is closed, so that the circuit of the portable transformer cooling fan 2 emergency commissioning device connected with the fan 2 is switched on. At the moment, the fan 2 operates normally under the control of the portable transformer cooling fan 2 emergency commissioning device. The arrangement enables the portable transformer cooling fan 2 emergency operation device to be automatically connected and control the fan 2 to operate when the PLC fails.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a cooling blower promptly puts into operation device which characterized by: the device comprises a control signal generating circuit and a power supply module;
the control signal generating circuit is used for generating a control signal of stable voltage or stable current;
the power supply module comprises a battery and a power supply circuit; two electrodes of the battery are connected with a power input end of the power circuit; the power supply output end of the power supply circuit is connected with the power supply input end of the control signal generating circuit; the power module is used for providing a stable power supply.
2. The cooling blower emergency commissioning device of claim 1, wherein: the control signal generating circuit is provided with 20 paths; and the control signal output end of each control signal generating circuit is respectively connected with a signal connecting jack.
3. The cooling blower emergency commissioning device of claim 1, wherein: the control signal output by the control signal output end of the control signal generating circuit is a 20mA control signal.
4. The utility model provides a fan cooling system for transformer, characterized by: comprising a controller, a fan (2), a signal switching circuit and a cooling fan emergency commissioning device according to any one of claims 1 to 3; the control signal output end of one path of the control signal generating circuit is connected with one signal input end of the signal switching circuit; the other signal input end of the signal switching circuit is connected with the control signal output end of the controller; and the signal output end of the signal switching circuit is connected with the control signal input end of the fan (2).
5. The fan cooling system for the transformer as claimed in claim 4, wherein: the controller is a PLC.
6. The fan cooling system for the transformer as claimed in claim 4, wherein: the signal switching circuit is a change-over switch (1); the control signal output end of one path of the control signal generating circuit is connected with one signal input end of the change-over switch (1); the other signal input end of the change-over switch (1) is connected with the control signal output end of the controller; and the signal output end of the change-over switch (1) is connected with the control signal input end of the fan (2).
7. The fan cooling system for the transformer as claimed in claim 4, wherein: the signal switching circuit comprises a relay; the coil of the relay is connected in series between the controller and the control signal input end of the fan (2); and a normally closed contact of the relay is connected between a control signal output end of the control signal generating circuit and a control signal input end of the fan (2) in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921991184.7U CN211778137U (en) | 2019-11-18 | 2019-11-18 | Cooling fan emergency operation device and fan cooling system for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921991184.7U CN211778137U (en) | 2019-11-18 | 2019-11-18 | Cooling fan emergency operation device and fan cooling system for transformer |
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| CN211778137U true CN211778137U (en) | 2020-10-27 |
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| CN201921991184.7U Active CN211778137U (en) | 2019-11-18 | 2019-11-18 | Cooling fan emergency operation device and fan cooling system for transformer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894887A (en) * | 2020-09-01 | 2020-11-06 | 河南艾牧智能设备有限公司 | Safe operation method of EC fan for livestock and poultry house |
| WO2022116398A1 (en) * | 2021-02-20 | 2022-06-09 | 西安亚能电气有限责任公司 | Monitoring assembly, monitoring apparatus, and monitoring module for fan in electrical power system |
-
2019
- 2019-11-18 CN CN201921991184.7U patent/CN211778137U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894887A (en) * | 2020-09-01 | 2020-11-06 | 河南艾牧智能设备有限公司 | Safe operation method of EC fan for livestock and poultry house |
| WO2022116398A1 (en) * | 2021-02-20 | 2022-06-09 | 西安亚能电气有限责任公司 | Monitoring assembly, monitoring apparatus, and monitoring module for fan in electrical power system |
| JP2023509275A (en) * | 2021-02-20 | 2023-03-08 | 西安亜能電気有限責任公司 | Monitoring components, monitoring devices and monitoring models for fans on power systems |
| JP7323236B2 (en) | 2021-02-20 | 2023-08-08 | 西安亜能電気有限責任公司 | Monitoring components, monitoring devices and monitoring models for fans on power systems |
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