Abrégé

Disclosed is a fuel gas double-wall pipe (1) drainage system, comprising a fuel gas double-wall pipe (1), discharge pipes (2) and a discharge tank (3). The fuel gas double-wall pipe (1) comprises an outer pipe (11) and an inner pipe (12); a discharge pipe (2) is connected at the lowest point of each pipe body bent part of the outer pipe (11); combustible gas detection devices (4) are arranged on the connecting pipe sections between the outer pipe (11) and the discharge pipes (2); water outlets of the discharge pipes (2) are connected to a water inlet (31) of the discharge tank (3); a first stop valve (32) for controlling the opening or closing of the water inlet (31) of the discharge tank (3) is arranged at the water inlet (31) of the discharge tank (3) in a cooperative manner; a discharge port (33) is provided in the bottom of the discharge tank (3); and a second stop valve (34) for controlling the discharge port (33) to be opened or closed is arranged at the discharge port (33) in a cooperative manner. The fuel gas double-wall pipe (1) drainage system can solve the technical problems that condensed water is directly discharged to a cabin, and that when the space between the inner pipe and the outer pipe of the double-wall pipe (1) is damaged, fuel gas may possibly be discharged into the cabin, such that a fire hazard is caused.

Classes IPC  ?

• F17D 1/02 - Systèmes de canalisation pour gaz ou vapeurs
• F17D 5/06 - Prévention, interception ou localisation des pertes utilisant des moyens électriques ou acoustiques
• F16L 9/18 - Tuyaux à double paroiTuyaux à canaux multiples ou assemblages de tuyaux
• F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux

Abrégé

An inlet flow mixing pipe for a desulphurization tower, comprising a bottom sealing plate (1) and a connecting plate (2) located above the bottom sealing plate (1); the bottom sealing plate (1) and the connecting plate (2) are integrally connected by means of a peripheral plate, and the bottom sealing plate (1), the connecting plate (2) and the peripheral plate enclose an internal space into which exhaust gas is discharged; the bottom sealing plate (1) is provided with a generator air inlet hole, a main machine air inlet hole and a boiler air inlet hole, an air outlet hole is provided on the connecting plate (2), and an air inlet pipe (3) is provided at each of the generator air inlet hole, the main machine air inlet hole and the boiler air inlet hole, an air outlet pipe (4) is provided at the air outlet hole, and the center of the main machine air inlet hole, the center of the air inlet pipe (3) provided at the main machine air inlet hole, the center of the air outlet hole on the connection plate (2) and the center of the air outlet pipe (4) are all on the same straight line. The inlet flow mixing pipe for a desulphurization tower has a small backpressure, discharges gas smoothly, occupies a small space, and has a simple structure.

Classes IPC  ?

• B63H 20/24 - Orifices de sortie des gaz d'échappement
• B63H 21/32 - Aménagements relatifs aux conduits d'échappement pour appareils de propulsionCheminées propres aux navires

Produits et services

Boats; ships' hulls; ferry boats; apparatus for locomotion by land, air or water; ships; dredgers [boats]; pontoons.