Water draining system with gas double-wall pipe

Abstract

The invention discloses a water draining system with a gas double-wall pipe. The system comprises the gas dual-wall pipe, draining pipes and a draining tank, the gas dual-wall pipe comprises an outerpipe and an inner pipe, the draining pipes are connected to the lowest points of all pipe body bending positions of the outer pipe, combustible gas detection devices are arranged on connecting pipe segments of the outer pipe and the draining pipes, water outlets of the draining pipes are connected with a water inlet of the draining tank, the water inlet of the draining tank is provided with a first stop valve in a matched manner, the first stop valve is used for controlling the water inlet of the draining tank to be opened or closed, a draining opening is formed in the bottom of the draining tank, and is provided with a second stop valve in a matched manner, and the second stop valve is used for controlling the draining opening to be opened or closed. According to the water draining systemwith the gas double-wall pipe, the technical problems that in the prior art, condensate water is directly drained to a cabin, when the position between the inner pipe and the outer pipe of the dual-wall pipe is damaged, gas is possibly exhausted into the cabin, and the fire danger is caused can be solved.

Description

technical field [0001] The invention relates to the technical field of drainage systems, in particular to a gas double-wall pipe drainage system. Background technique [0002] Dual-fuel container ships usually use oil and gas as the fuel for the main engine, main generator set and boiler. The International Code for the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk (IGC CODE) stipulates that when gas is used as fuel, the area inside the engine room must use double-wall pipes as the delivery pipeline, otherwise the engine room will be defined as a hazardous area. [0003] The double-wall pipe has two layers, the inner pipe and the outer pipe. The medium of the inner pipe is gas, and the temperature of the gas entering the engine room is about 0°C. The medium of the outer tube is the air from the outside of the ship, and the outer tube is connected to the exhaust fan to continuously suck the air out of the outer tube through the exhaust fan, so that the ...

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Problems solved by technology

[0005] In view of the above problems, the purpose of the present invention is to provide a gas double-wall pipe drainage system, which can solve the problem of direct discharge of condensed water to the engine room in the prior art. When there is damage between the inner and outer pipes of the double-wall pipe, the gas may also be discharged into the engine room, thereby posing a fire hazard technical problem

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