CN211400198U - Reversing fan device of high-pressure chamber - Google Patents
Reversing fan device of high-pressure chamber Download PDFInfo
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- CN211400198U CN211400198U CN201922460778.1U CN201922460778U CN211400198U CN 211400198 U CN211400198 U CN 211400198U CN 201922460778 U CN201922460778 U CN 201922460778U CN 211400198 U CN211400198 U CN 211400198U
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- layer fan
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- 239000000779 smoke Substances 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 238000009423 ventilation Methods 0.000 abstract description 6
- 239000002341 toxic gas Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 11
- 238000011217 control strategy Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 high temperature Substances 0.000 description 1
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Abstract
The utility model relates to the field of transformer substation construction, in particular to a reversing fan device for a high-pressure chamber, which comprises a smoke sensing alarm device, a temperature detector, an SF6 detection device, a signal receiver, a controller, an upper fan and a lower fan; the smoke detector alarm device, the temperature detector and the SF6 detection device are in data communication with the signal receiver respectively, the signal receiver is in data communication with the controller, and the controller controls the forward and reverse rotation of the upper-layer fan and the lower-layer fan respectively through the connection reversing device. By controlling the positive and negative rotation of the upper and lower fans under different working conditions, the toxic gas discharge speed is greatly improved, and the toxic gas discharge time is reduced. The device has strong expansibility and wide application, and can be applied to ventilation systems of other GIS rooms and the like besides high-voltage rooms.
Description
Technical Field
The utility model relates to a transformer substation construction field, concretely relates to high-pressure chamber reversing fan device.
Background
Regulations for safety of electric work by national grid company (2016): in order to prevent deposition after leakage of SF6 gas (with high density), a ventilation device with an upper-lower row ventilation direction must be arranged in an SF6 equipment room. The equipment room is in fire, a large amount of dense smoke is generated and accumulated upwards, and in order to ensure the discharge of the dense smoke, the ventilation of the equipment room needs to be in a mode of 'bottom-in-top-out'. The requirements in national grid company electric power safety work regulation 11.1 are as follows: the distribution equipment room with SF6 equipment and SF6 gas laboratory should be equipped with strong ventilation device, the air outlet should be arranged at the bottom of the room, and the air outlet should not face to residential houses or pedestrians. With the popularization of SF6 equipment, it is difficult for indoor fans to deal with the varied environments of toxic gas, high temperature, smoke, humidity and the like, and the exhaust rate is also in urgent need of improvement.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a high-pressure chamber switching-over fan device can realize the two-way transform of vent from top to bottom. The utility model adopts the technical scheme as follows:
a high-pressure chamber reversing fan device comprises a smoke sensing alarm device, a temperature detector, an SF6 detection device, a signal receiver, a controller, an upper layer fan and a lower layer fan;
the smoke detector alarm device, the temperature detector and the SF6 detection device are in data communication with the signal receiver respectively, the signal receiver is in data communication with the controller, and the controller controls the forward and reverse rotation of the upper-layer fan and the lower-layer fan respectively through the connection reversing device.
According to the reversing fan device for the high-voltage chamber, the controller is a PLC or a single chip microcomputer, and data communication is achieved through the RS485 communication module.
According to the high-pressure chamber reversing fan device, when SF6 gas in the high-pressure chamber leaks, the reversing device controls the upper layer fan to rotate reversely and the lower layer fan to rotate forwardly.
According to the reversing fan device for the high-pressure chamber, when smoke exists in the high-pressure chamber, the reversing device controls the upper-layer fan to rotate forwards and the lower-layer fan to rotate backwards.
According to the reversing fan device for the high-pressure chamber, when open fire exists in the high-pressure chamber, the reversing device controls the upper-layer fan to rotate positively and the lower-layer fan to rotate positively.
According to the high-pressure chamber reversing fan device, when SF6 gas leaks and smoke exists in the high-pressure chamber, the reversing device controls the upper-layer fan to rotate reversely and the lower-layer fan to rotate normally so as to discharge SF6 gas firstly.
The utility model has the advantages that: by controlling the positive and negative rotation of the upper and lower fans under different working conditions, the toxic gas discharge speed is greatly improved, and the toxic gas discharge time is reduced. The device has strong expansibility and wide application, and can be applied to ventilation systems of other GIS rooms and the like besides high-voltage rooms.
Drawings
Fig. 1 is an electrical schematic diagram of an embodiment of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
A high-pressure chamber reversing fan device comprises a smoke sensing alarm device, a temperature detector, an SF6 detection device, a signal receiver, a controller, an upper layer fan and a lower layer fan;
the smoke detector alarm device, the temperature detector and the SF6 detection device are in data communication with the signal receiver respectively, the signal receiver is in data communication with the controller, and the controller controls the forward and reverse rotation of the upper-layer fan and the lower-layer fan respectively through the connection reversing device.
According to the reversing fan device for the high-voltage chamber, the controller is a PLC or a single chip microcomputer, and data communication is achieved through the RS485 communication module.
According to the high-pressure chamber reversing fan device, when SF6 gas in the high-pressure chamber leaks, the reversing device controls the upper layer fan to rotate reversely and the lower layer fan to rotate forwardly.
According to the reversing fan device for the high-pressure chamber, when smoke exists in the high-pressure chamber, the reversing device controls the upper-layer fan to rotate forwards and the lower-layer fan to rotate backwards.
According to the reversing fan device for the high-pressure chamber, when open fire exists in the high-pressure chamber, the reversing device controls the upper-layer fan to rotate positively and the lower-layer fan to rotate positively.
According to the high-pressure chamber reversing fan device, when SF6 gas leaks and smoke exists in the high-pressure chamber, the reversing device controls the upper-layer fan to rotate reversely and the lower-layer fan to rotate normally so as to discharge SF6 gas firstly.
The signal receiving device and the controller are integrally installed, and the controller can be selected from a PLC or a single chip microcomputer. The data communication selects a mature RS485 wired or wireless transmission element on the market, and the reversing device uses the existing three-phase reversing element on the market. The controller can also interact with the real-time data of portable equipment such as a mobile phone APP.
TABLE 1 Intelligent reversing control strategy truth table for blower
In the above table:
in inputs A, B and C, a "1" indicates that the sensor is activated, and a "0" indicates that the sensor is not activated;
in the output ends Y1 and Y2, "1" represents the forward rotation of the fan, and "0" represents the reverse rotation of the fan;
in the output terminals Y3 and Y4, "1" indicates power on, and "0" indicates power off;
in the output terminal Y5, "1" indicates alarm, and "0" indicates no alarm.
When only SF6 gas leaks in the high-pressure chamber, the controller receives an alarm signal sent by the SF6 detection device and controls the fan on the lower layer to forward exhaust air and the fan on the upper layer to reversely intake air. When the fire in the high-pressure chamber is extinguished and smoke exists, the controller receives an alarm signal sent by the smoke sensing alarm device and controls the fan on the lower layer to reversely intake air and the fan on the upper layer to forwardly exhaust air. When two gases exist at the same time, the SF6 gas is preferentially discharged, and when the concentration of the SF6 is lower than the alarm value, the smoke is discharged.
Table 2 truth table of control strategy under ultra-high temperature condition
Combine table 2 under the ultra-temperature condition, then judge that there is open fire in the high-pressure chamber, the fan corotation evacuation room air simultaneously this moment, similar evacuation can reach fire extinguishing effect.
Claims (6)
1. A high pressure chamber reversing fan device is characterized in that: the device comprises a smoke alarm device, a temperature detector, an SF6 detection device, a signal receiver, a controller, an upper layer fan and a lower layer fan;
the smoke detector alarm device, the temperature detector and the SF6 detection device are in data communication with the signal receiver respectively, the signal receiver is in data communication with the controller, and the controller controls the forward and reverse rotation of the upper-layer fan and the lower-layer fan respectively through the connection reversing device.
2. The high pressure chamber reversing blower apparatus of claim 1, wherein: the controller is a PLC or a single chip microcomputer, and data communication is realized by an RS485 communication module.
3. The high pressure chamber reversing blower apparatus of claim 1, wherein: when SF6 gas leaks in the high-pressure chamber, the reversing device controls the upper-layer fan to rotate reversely and the lower-layer fan to rotate positively.
4. The high pressure chamber reversing blower apparatus of claim 1, wherein: when smoke exists in the high-pressure chamber, the reversing device controls the upper-layer fan to rotate forwards and the lower-layer fan to rotate backwards.
5. The high pressure chamber reversing blower apparatus of claim 1, wherein: when open fire exists in the high-pressure chamber, the reversing device controls the upper-layer fan to rotate positively and the lower-layer fan to rotate positively.
6. The high pressure chamber reversing blower apparatus of claim 1, wherein: when SF6 gas leaks in the high-pressure chamber and smoke exists, the reversing device controls the upper-layer fan to rotate reversely and the lower-layer fan to rotate forwardly so as to discharge SF6 gas firstly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922460778.1U CN211400198U (en) | 2019-12-31 | 2019-12-31 | Reversing fan device of high-pressure chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922460778.1U CN211400198U (en) | 2019-12-31 | 2019-12-31 | Reversing fan device of high-pressure chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211400198U true CN211400198U (en) | 2020-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922460778.1U Active CN211400198U (en) | 2019-12-31 | 2019-12-31 | Reversing fan device of high-pressure chamber |
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| Country | Link |
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| CN (1) | CN211400198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114253320A (en) * | 2021-10-29 | 2022-03-29 | 国网青海省电力公司 | Indoor autonomous ventilation linkage system of transformer substation |
-
2019
- 2019-12-31 CN CN201922460778.1U patent/CN211400198U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114253320A (en) * | 2021-10-29 | 2022-03-29 | 国网青海省电力公司 | Indoor autonomous ventilation linkage system of transformer substation |
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