초록 ▼

Two versions of centrifugal type separators capable of removing moisture from digester gases, landfill gases and raw natural gases, each separator including an upright housing having a cylindrical upper region (of a circular cross-section) and a conical lower region which tapers downwardly. A tangen

Two versions of centrifugal type separators capable of removing moisture from digester gases, landfill gases and raw natural gases, each separator including an upright housing having a cylindrical upper region (of a circular cross-section) and a conical lower region which tapers downwardly. A tangential inlet is located in an upper region of the housing. A gas outlet is located centrally in a top end of the housing. An outlet to remove separated liquid is provided at the bottom of the housing. There is a trap system that preferably includes a liquid holding tank for providing a positive water seal in order to prevent explosive gases from escaping through the liquid outlet. One version of separator is suitable for a high pressure gas stream, i.e., 3.0 psig or higher, while the second version is suitable for lower pressure gas streams, i.e., from 6 inches to 30 inches of water. In the second version, the water seal is formed in the conical lower region of the housing and its water level is maintained by the location of an upper end of a drain outlet line. A vent line is open to atmosphere to maintain atmospheric pressure in the drain line.

대표청구항 ▼

[ I claim:] [1.] A separator for centrifugal separation of moisture from a moisture laden gas stream comprising:an upright separator housing having an interior with a substantial round horizontal cross-section and a conical lower region which tapers downwardly from an upper region of the housing;a t

[ I claim:] [1.] A separator for centrifugal separation of moisture from a moisture laden gas stream comprising:an upright separator housing having an interior with a substantial round horizontal cross-section and a conical lower region which tapers downwardly from an upper region of the housing;a tangential gas inlet for said gas stream located in said upper region of the housing;a gas outlet located centrally in a top end of said housing, said gas outlet including a vertically extending pipe section connected to said housing;a liquid outlet for removing separated liquid from said lower region;a trap system including a liquid holding tank for providing a positive water seal in order to prevent gases from said gas stream from escaping through said liquid outlet, wherein said holding tank is connected to said liquid outlet so that liquid at a bottom end of said housing can flow through said liquid outlet and into said holding tank during operation of said separator, said trap system including a liquid level gauge mounted on said holding tank and having a first liquid level sensor for sensing when the level of liquid in said holding tank has reached a predetermined maximum height, a second liquid level sensor for sensing when the level of liquid in said holding tank has fallen to a minimum height, and a third liquid level sensor for detecting when the level of liquid in said holding tank has risen to a level above the predetermined maximum height, and wherein a solenoid control valve is opened or closed by said first and second liquid level sensors in order to control the level of liquid in said holding tank, said control valve permitting liquid to flow out of said holding tank to a drain when the level of liquid in said holding tank reaches said maximum height, anda warning device operable to generate a warning and turned on by means of said third liquid level sensor when this sensor detects a liquid level above said predetermined maximum height.