Abstract: The present invention includes a CP monitoring unit configured to monitor a CP voltage applied through a CP line from the controller of the slow charging cable when the slow charging cable is connected to an inlet, a mode switching request unit configured to request mode switching to the controller of the slow charging cable by converting the monitored CP voltage to a preset mode switching voltage; a communication switching unit configured to connect a LIN transceiver for LIN communication to the CP line when the controller of the slow charging cable is switched to a LIN communication mode for software update, and a control unit configured to control the LIN transceiver to transmit a pre-stored software update file to the controller of the slow charging cable, so that the controller's software can be updated without disassembling or damaging the controller of the slow charging cable.

Abstract: Provided is a coupling structure for easy installation and separation of a faucet. The coupling structure includes a connection body which is connected to a water supply pipe at one side and has a coupler at an opposite side. A connection pipe formed in the faucet is fitted to the coupler such that the faucet is coupled to the connection body to allow the faucet to be supplied with water and to discharge the water. A grab ring is formed in the coupler, and an actuation ring is installed in the connection pipe so as to be moved forward and backward. When the actuation ring is moved forward, the actuation ring expands the grab ring to allow the connection pipe to be separated from the coupler. Easy installation of the faucet enhances convenience in construction. Easy separation of the faucet, when necessary, enhances convenience in maintenance.

Abstract: Provided is a swivel joint for flare system of offshore plant which can be semi-permanently operated even with grease injected once. The swivel joint for flare system of offshore plant proposed comprises a cylindrical body; and first and second connecting members coupled to opposite sides of the cylindrical body, respectively. The swivel joint has an advantage that it can be actually semi-permanently used with the grease initially injected and then the sealing made.

Abstract: Provided is a coupling structure for easy installation and separation of a faucet. The coupling structure includes a connection body which is connected to a water supply pipe at one side and has a coupler at an opposite side. A connection pipe formed in the faucet is fitted to the coupler such that the faucet is coupled to the connection body to allow the faucet to be supplied with water and to discharge the water. A grab ring is formed in the coupler, and an actuation ring is installed in the connection pipe so as to be moved forward and backward. When the actuation ring is moved forward, the actuation ring expands the grab ring to allow the connection pipe to be separated from the coupler. Easy installation of the faucet enhances convenience in construction. Easy separation of the faucet, when necessary, enhances convenience in maintenance.

Abstract: A nozzle for a burner boom water spray system of an offshore plant that can more efficiently shield a high heat source generating when combusting gas generating upon drilling crude oil is provided. The nozzle includes: a front ejecting portion having a first nozzle tap at the center; a first side ejecting portion formed at a lower side of the front ejecting portion; a second side ejecting portion formed at a lower side of the first side ejecting portion; and a fastening portion formed at a lower side of the second side ejecting portion and coupled to a member for supplying a nozzle injection fluid. The nozzle provides a side ejecting portion of two stages in addition to a front ejecting portion, and thus an efficient water curtain pattern can be embodied.