Abstract:
PURPOSE: A method and an apparatus using the same for draining residual water in a cooling coil by spraying compressed air in multistage are provided to estimate actual end point when the residual water is finished discharging because decompression time depending on change of pressure value is intelligently analyzed. CONSTITUTION: A method for draining residual water in a cooling coil is as follows. If pressure of a tank(11) is less than the lower limit of effective discharge pressure, a compressor(10) starts supplying air to the tank. If the tank pressure is more than the upper limit of the effective discharge pressure, the compressor stops supplying the air to the tank. If the tank pressure is reached to the upper limit of the effective discharge pressure, an air inflow control valve(12) is opened and a drain control valve is closed. If the tank pressure is reached to the lower limit of the effective discharge pressure, the air inflow control valve is closed and the drain control valve is opened.
Abstract:
PURPOSE: A device for preventing self-car washing equipment from freezing and bursting by continuously injecting compressed air is provided to effectively prevent a duct from freezing for a long time with reduced costs. CONSTITUTION: A device for preventing self-car washing equipment from freezing and bursting comprises high-pressure hose pipes(50), bubble hose pipes(60), and a controller(30). Air flowing from a compressed air source is supplied to the high-pressure and bubble hose pipes through an air passage. A manual opening and closing valve(10), a water separator(11), a pneumatic regulator(12), and a solenoid valve(20) are successively arranged in the air passage. The controller electrically controls the opening and closing of the solenoid valve depending on surrounding temperature.
Abstract:
본 발명은 지구온난화와 기후변화를 유발시키는 대표적 온실가스인 이산화탄소를 대규모로 해양지중에 저장하기 위하여 이산화탄소를 발생지(포집지)로부터 저장지까지 이송하는 파이프라인에 장착되는 이산화탄소 배출(blow down) 시스템의 드라이아이스 유발 관내폐색 방지 장치에 관한 것이다.
Abstract:
PURPOSE: Provided is a use of water-soluble polymers for inhibiting formation of gas hydrates in pipes containing oil or gas and this is relevant for both drilling and production of oil and gas. CONSTITUTION: An instant invention relates to the use of water-soluble polymers comprising structural elements of formula (I) wherein each R is independently H or C1-5-alkyl; X is H, an alkaline or earth alkaline metal or a quaternary ammonium group; R1 is H or C1-18-alkyl; and R2 is C1-18-alkyl; and wherein the alkyl groups represented by R1 and R2 may carry a hydroxy or amino substituent; and, if desired, a minor proportion of structural elements of formula (II) wherein R, R1, R2 and X may have the meaning as above, and Alk is a C1-C5-alkylene chain, as additives for inhibiting the formation of gas hydrates in connection with hydrocarbon production and transportation.
Abstract:
본 발명은 지구온난화와 기후변화를 유발시키는 대표적 온실가스인 이산화탄소를 대규모로 해양지중에 저장하기 위하여 이산화탄소를 발생지(포집지)로부터 저장지까지 이송하는 파이프라인에 장착되는 이산화탄소 배출(blow down) 시스템의 관내폐색 방지 방법에 관한 것이다.
Abstract:
One embodiment of the present invention is a portable natural gas discharge system for discharging compressed natural gas into a receiving location. The system comprises a portable chassis for holding the natural gas discharge system and all subcomponents, an inlet port for receiving the natural gas at an inlet pressure higher than a pressure of the receiving location, an expansion valve for regulating pressure of the natural gas to a stable intermediate pressure, a heat exchanger for heating up the cooled natural gas stream as a result of cooling due to expansion, a regulator for regulating a flow of the heated natural gas stream through the heat exchanger and out of the portable natural gas discharge system, and a discharge port for discharging the heated natural gas stream into the receiving location.
Abstract:
Valve, especially for dosing inhibitors to prevent forming of hydrates in the exploration of oil and gas, or as a liquid choke. The inhibitor or liquid has a first and higher pressure upstream of the valve and a second and lower pressure downstream of the valve. The valve has a valve body (9) with at least one orifice (11) therethrough. The orifice (11) has a substantially uniform diameter and an upstream inlet part. The inlet part has an enlarged diameter relative to the substantially uniform diameter of the orifice (11). The valve body (9) is disc shaped with a plurality of parallel orifices (11) placed equidistant from a rotational axis (10).