SF6 (sulfur hexafluoride) biotoxicity testing device with video monitoring function

Abstract

The invention provides an SF6 (sulfur hexafluoride) biotoxicity testing device with a video monitoring function. The SF6 biotoxicity testing device with the video monitoring function comprises an oxygen gas cylinder, sulfur hexafluoride gas cylinders, multiple gas mixing modules and multiple poisoning boxes. The SF6 biotoxicity testing device with the video monitoring function is characterized by being additionally provided with an air pump, a buffer tank, a recovery tank, a controller, an alarm, multiple gas flow control modules and multiple high-definition cameras, wherein the multiple high-definition cameras are arranged around the poisoning boxes; signal output ends of the multiple high-definition cameras are connected with the controller; each gas flow control module comprises a flow rate control valve and a fixed differential reducing valve which are connected in parallel; each gas mixing module comprises a gas mixing chamber and a gas mixing pipeline which are connected in series; sulfur hexafluoride and oxygen enter the gas mixing modules in a proportion of 79: 21 and further according to a flow speed at which the sum of flow rates per minute is not less than 1 / 8 the volumes of the poisoning boxes, and communicate with the poisoning boxes through a pipeline provided with a tee bend and a gas inlet pipe; gas outlets of the poisoning boxes are connected with the buffer tank through pipelines provided with one-way valves; a gas outlet end of the buffer tank is connected back to the recovery tank through a pump; an output end of the air pump is connected with the tee bend; an output end of the controller is connected with the alarm, the air pump, the pump and electronic flow meters respectively.

Description

technical field [0001] The invention relates to a SF with video monitoring function 6 A biological toxicity test device belongs to the technical field of sulfur hexafluoride toxicity test. Background technique [0002] Currently commonly used SF 6 One gas biotoxicity test can only complete the inspection of one bottle of gas, and the test period is long. Generally, continuous observation is required for 72 hours. Staff are required to be on duty to observe the condition of the mice continuously, and the test workload is relatively large. With the development of power grid construction, there are more and more large-capacity electrical equipment such as UHV and EHV. 6 The demand for gas is increasing, and there is an urgent need for existing SF 6 The gas biological toxicity test has been improved and perfected to form a fast, efficient, reliable and effective test method to reduce the workload on duty and completely solve the problem of SF 6 The problem of gas biotoxicity...

AI Technical Summary

Problems solved by technology

[0002] Currently commonly used SF 6 One test of gas biotoxicity can only complete the inspection of one bottle of gas, and the test period is long. Generally, continuous observation is required for 72 hours, and staff are required to be on duty continuously to observe the condition of the mice, and the test workload is relatively large.

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