Safety device for preventing leakage during storage of nitric acid
A safety device and anti-leakage technology, which is applied in the field of chemical safety monitoring and protection, can solve problems such as poisoning and nitric acid leakage, and achieve the effect of safe and reliable maintenance, solving safety problems, and low maintenance
Active Publication Date: 2012-02-15
YUNNAN DAHONGSHAN PIPELINE
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Problems solved by technology
The nitric acid storage tank has a capacity of 30 tons. The nitric acid room is unattended, and nitric acid is a dangerous chemical. Due to the use of nitric acid storage tank outlet pipes, joints, valves, and centrifugal pumps, nitric acid leakage may occur due to aging parts or other conditions. Leakage of nitric acid will produce a large amount of acid mist. At the same time, the leakage of this toxic gas will cause fire, explosion, poisoning and other personal injury accidents and property losses. Therefore, a protective device for nitric acid leakage is needed to protect the nitric acid room. , can close the outlet valve, spray water mist, and alarm
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[0022] Combine below Figure 1 to Figure 3 , the present invention is further described:
[0023] figure 1 A schematic diagram of the field device of the present invention is disclosed in , wherein the mist nozzle 2, nitric acid storage tank 4, nitric acid storage tank exhaust pipe 5, pump inlet ball valve 7, corrosion-resistant centrifugal pump 8, pump inlet and outlet pipeline 9, mist nozzle pipeline 10. Based on the original technology, newly added pneumatic control ball valve at the inlet of mist nozzle pipeline 1, multi-channel gas detection sensor probe of nitric acid leakage alarm 3, pneumatic control ball valve of outlet pipe of nitric acid storage tank 6, nitric acid leakage alarm host 11, Electric control box 12, signal cable 13.
[0024] figure 2 The control principle of the present invention is disclosed in , when the detection probe of the gas detector detects that the concentration of acid mist inside the nitric acid room is greater than the concentration set...
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The invention provides a safety device for preventing leakage during storage of nitric acid. The safety device comprises a nitric acid storage tank and a nitric acid leakage alarm; a fog nozzle pipeline is arranged above the nitric acid storage tank, and is provided with a fog nozzle; a control pneumatic ball valve provided with the fog nozzle controls the fog nozzle; the nitric acid leakage alarm detects nitric acid concentration in a nitric acid room; and the outlet of the nitric acid storage tank is provided with an acid outlet pneumatic ball valve. The device can detect and control the safety of a protection system, is low in maintenance cost, safe and reliable, and can prevent nitric acid from leaking massively to avoid accidents.
Description
technical field [0001] The invention relates to chemical safety monitoring and protection technology, in particular to a safety protection device for nitric acid storage sites used in the pulp dehydration process. Background technique [0002] The main production equipment of the dehydration station of Dahongshan Pipeline Company is the ceramic filter, which needs to use about 60% nitric acid for regular cleaning of the ceramic plate. The nitric acid is stored in the nitric acid storage tank, and is delivered to the ceramic filter by a corrosion-resistant centrifugal pump to measure the acid pump and the acid storage tank. use. The nitric acid storage tank has a capacity of 30 tons. The nitric acid room is unattended, and nitric acid is a dangerous chemical. Due to the use of nitric acid storage tank outlet pipes, joints, valves, and centrifugal pumps, nitric acid leakage may occur due to aging parts or other conditions. Leakage of nitric acid will produce a large amount of...
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IPC IPC(8): F17D1/02F17D5/02
Inventor 普光跃安建潘春雷宋云明
Owner YUNNAN DAHONGSHAN PIPELINE