Abstract:
The invention concerns a method of performing an air leakage test in a low pressure chamber. The chamber is evacuated down to a predetermined low pressure level, at which level the evacuation is interrupted and the chamber closed entirely. Following a period of inactivity after attainment of the predetermined low pressure level, during which period the pressure is allowed to rise inside the chamber, the evacuation is again started. This is effected with the aid of an ejector having a higher capacity for pumping out vapour than air, and the evacuation is effected until the predetermined low pressure level is again attained.
Abstract:
A pressure stabilization system for damping pressure variations in a process (10) discharging an effluent gas stream, in which the process is pressure-sensitive and downstream pressure variations can adversely affect the upstream process, comprising a motive fluid driver (38) to receive the effluent gas stream, and means (3) for sensing a pressure characteristic of the effluent gas stream and adjusting the flow of the effluent gas stream to damp pressure fluctuations. The pressure stabilization system may further comprise: (i) a variable frequency drive (170) for operating the motive fluid driver at a variable rotational speed; (ii) a pressure transducer monitor (186) for monitoring the pressure characteristic of the effluent gas stream and generating a pressure transduced signal; and (iii) a proportional integral derivative controller (188) coupled with the pressure transducer monitor (186), and responsive to the pressure transduced signal to adjust the variable frequency drive to damp pressure fluctuations.
Abstract:
본 발명은 웨이퍼 증착장비용 프로세스챔버 개폐장치에 관한 것이다. 이는, 챔버리드를 갖는 프로세스챔버의 챔버리드에 고정되는 상부링크브라켓과; 상부링크브라켓의 하부에 고정되는 하부링크브라켓과; 연결핀을 통해 하부링크브라켓에 링크되는 리드스크류와; 상부링크브라켓에 연결핀으로 연결되는 상부커넥터와; 상부커넥터에 고정된 상태로 리드스크류의 일부를 수용하는 리프팅파이프와; 리프팅파이프의 하단부에 고정되는 기어하우징과; 기어하우징의 밀폐공간내에 수용되는 워엄휠 및 워엄과; 기어하우징의 외측부에 설치되는 고정브라켓과; 고정브라켓에 고정되는 서보모터와; 서보모터의 회전력을 워엄으로 전달하는 커플러가 포함된다. 상기와 같이 이루어지는 본 발명의 웨이퍼 증착장비용 프로세스챔버 개폐장치는, 챔버리드의 개방각도를 다단으로 조절할 수 있으며, 더 나아가 입력된 각도에 도달했을 때 자동으로 정지하는 구조를 가져, 사용이 매우 편리하다. 또한, 기어하우징에 밀폐된 워엄 및 워엄휠을 채용하므로 동작 정밀성이 뛰어나고, 모터의 부하가 작아 저소음 운용이 가능하며 쇳가루가 날릴 염려가 없다.
Abstract:
PURPOSE:To save energy consumption for quantity of heat and to increase the cooling efficiency by connecting both the halfway position of a return pipe of high-temp. water and the halfway position of a circulation path of cooling via an energy conservation tank capable of storing water. CONSTITUTION:In case of heating the inside of a pressurized vessel 1, three-way switching valves 12, 13, 22 are changed over to supply high-temp. water to a heating cooler 2 from a high-temp. water feed pipe 9 and the used high-temp. water is introduced to the outer part through a return pipe 10. In case of cooling the pressurized apparatus, the three-way switching valves 12, 13, 22, 23 are changed over to stop the supply the high-temp. water and water 24 incorporated in a less energy consumption tank 21 is circulated and fed to the heating coller 2 as the cooling water. Then, the respective three-way switching valves 12, 13, 22, 23 are changed over to stop the supply of water 24 from the energy conservation tank 21 and the original cooling is performed by circulating and feeding the cooling water to the heating cooler 2 from a cooling water circulating pipe 11.
Abstract:
PURPOSE:To provide the titled pressure reducing apparatus eliminating a mechanical slide part and capable of minimizing the abrasion of a liquid contacting part such as a valve thereof, by such a mechanism that the charging or discharging valve of a high pressure gas or low pressure gas is opened prior to opening the charging valve of a liquid to be decompressed or the discharge valve of decompressed liquid provided to a gas-liquid pressure reducing tower to carry out pressure raising step or a pressure reducing step. CONSTITUTION:Under a state A after a pressure raising step is finished, a high pressure gas charging and discharging valve 23 is opened while other valves 14, 17, 20 are closed and the liquid level in a gas-liquid pressure reducing tower 11 is adjusted to a position L1. When the charging value 14 of a liquid to be decompressed is opened from this state, a high pressure soln. of liquefied coal product is supplied to the pressure reducing tower 11 from a tower 4 and the liquid in the tower 11 is transferred to a state B from the state A to raise the liquid level to L3 from L1. In this case, the valve 14 is closed after the valve 23 is closed. In the next step, the valve 20 is opened to discharge the residual high pressure gas in the top part of the tower 11 from a discharge line 7 along with the gas dissolved in the aforementioned solution, and the pressure of the solution is reduced to predetermined pressure while the liquid level is raised to L4 from L3 and gas-liquid is brought into equilibrium in the tower 11. The valve 17 is opened in this state and the aforementioned solution is flowed into the tower 11 from the valve 23 while the decompressed solution is discharged from the tower 11 to be sent to a low pressure gas-liquid separation tower 5.
Abstract:
A reactor including: a first reaction volume for an supercritical oxidation reaction (V1), a second reaction volume for a supercritical gasification reaction (V2), wherein : the first reaction volume (VI) is in fluid communication with an inlet port for an oxidizer agent (OX_JN), an inlet port for at least one first reactant (R1JN) and an outlet port for at least one reaction product (P1 OUT), said second reaction volume (V2) is in fluid communication with an inlet port for at least one second reactant (R2_IN), an outlet port for at least one second reaction product (P2 OUT) and is furthermore in thermal exchange relationship with said first reaction volume (V1), and said second reaction volume (V2) is arranged concentrically around said first reaction volume (V1).