A transformer foam sprinkler fire extinguishing device

Abstract

The present invention provides a transformer foam spray fire extinguishing device, the spray equipment includes a nitrogen bottle and a foam synthesis tank, and a solenoid valve is connected in series between the nitrogen bottle and the foam synthesis tank to control whether the nitrogen bottle is connected to the foam synthesis tank , the foam synthesis tank is provided with an electric valve to control whether to extinguish the transformer, the spray device also includes a controller for controlling the solenoid valve and the electric valve, a resetting relay is provided in the terminal box, and the high-voltage side switch assists The contacts and auxiliary contacts of the medium-voltage side switch are electrically connected to the reset relay, the controller is electrically connected to the reset relay, the auxiliary contact of the high-voltage side switch, and the auxiliary contact of the medium-voltage side switch are indirectly electrically connected to the controller, so that The controller can monitor the auxiliary contacts of the switch on the high voltage side and the auxiliary switch on the medium voltage side of the transformer, effectively avoiding the misoperation of the spraying device and optimizing the performance of the spraying device.

Description

technical field [0001] The invention relates to power grid accessories, in particular to a transformer foam spray fire extinguishing device. Background technique [0002] The transformer is an indispensable key component in the power grid field, which plays a role in changing the voltage of the transmission network. Using the transformer to transform the voltage during the power transmission process can greatly reduce the power loss in the power transmission process and save power resources. During the working process of the transformer, the transformer may catch fire due to failure, overload and other reasons. In large-scale substations, fire-fighting transformers should be extinguished in time to avoid greater losses. [0003] In the prior art, transformers used in substations are generally equipped with a fire extinguishing device. The fire extinguishing device includes a detector arranged around the transformer. The detector communicates with the fire-fighting host. Op...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, transformers used in substations are generally equipped with a fire extinguishing device. The fire extinguishing device includes a detector arranged around the transformer. The detector communicates with the fire-fighting host. Open it to extinguish the fire of the transformer. This device can automatically extinguish the fire when the transformer catches fire, which is very convenient to use; but the detector of this fire extinguishing device is prone to misoperation, resulting in misoperation of the foam fire extinguishing device. There are many inconveniences in actual use.

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