Abstract: Described herein is a construction system for a subway station, wherein the construction of guide walls is accomplished using a guide wall steel formwork system, the construction of support beams is accomplished using a support beam steel formwork system, the construction of sidewalls is accomplished using a sidewall trolley, and the construction of floor slabs is accomplished using a floor slab trolley.

Abstract: Described herein is a construction system for a subway station, wherein the construction of guide walls is accomplished using a guide wall steel formwork system, the construction of support beams is accomplished using a support beam steel formwork system, the construction of sidewalls is accomplished using a sidewall trolley, and the construction of floor slabs is accomplished using a floor slab trolley.

Abstract: An air conditioner includes a blower case to guide air blown by a blowing fan to an indoor discharge port. The blower case includes a discharge guide space to guide discharged air to the indoor discharge port, and an air distribution member positioned in the discharge guide space to guide distribution of the discharged air. The air conditioner has uniform volume and velocity of air discharged through an indoor discharge port, and suppresses blowing noise from being generated from the indoor discharge port.

Abstract: An air conditioner which reduces an amount of an eddy generated in an outlet or prevents generation of the eddy, to increase a flow rate of discharged air and reduce the generation of noise. The air conditioner includes an indoor air inlet and an indoor air outlet formed in a main body, an air blast fan to inhale indoor air through the indoor air inlet and to discharge the indoor air through the indoor air outlet, and at least one partition to reduce an amount of an eddy generated in the indoor air outlet or to prevent generation of the eddy. The at least one partition is installed on a separation plate that separates from each other a suction channel to inhale the indoor air and a discharge channel to discharge the indoor air.

Abstract: An air purifier includes a bell-mouth having an enhanced structure to prevent an increase of noise at a particular frequency when air flows into the blowing fan through the bell-mouth. The air purifier includes a housing, a filter unit and a blowing fan placed inside the housing, and a bell-mouth placed toward an intake side of the blowing fan. The bell-mouth includes an inlet port formed at a center of the bell-mouth, a flow guide extending from a periphery of the inlet port toward the blowing fan, and a flat section positioned to discontinue the flow guide to increase a distance between the blowing fan and the bell-mouth. The flat section is formed at the section in the range of about 240°˜330° with respect to a starting point of a scroll inside the bell-mouth. The flat section may have a saw-tooth shape to effectively distribute air passing therethrough.

Abstract: A pipe fixing device comprising a plurality of pipes, for conducting liquid or gas, arranged to cross each other, and a fixing member for fixing the plurality of pipes. The fixing member comprises a plurality of pipe fixing bores, and a plurality of fitting bores for the fitting of bands used to tighten the pipes. The present invention can secure not only easy insertion of the pipes arranged to cross each other, but also enhancement in a coupling force of the pipes through the use of the tightening bands, resulting in stable and reliable fixation of the pipes.

Abstract: A pipe damping device including a damping member for reducing vibration of a pipe. The damping member includes a body, a pipe insertion bore formed in the body for the insertion of the pipe, and one or more specimen insertion bores formed in the body, into which one or more specimens, having different masses, are inserted, respectively.