Power plants – Combustion products used as motive fluid – With safety device
Patent
1990-11-05
1992-09-22
Bertsch, Richard A.
Power plants
Combustion products used as motive fluid
With safety device
55270, 55274, 55394, 55462, F02G 300, B01D 5330, B01D 4508
Patent
active
051486695
ABSTRACT:
An apparatus is provided for ensuring that a device--such as a gas turbine--that utilizes gases and will be damaged by particles in the gases greater than the predetermined size, will not be subjected to such particles. A filter, or the like removes particles from the gases, and is connected to the gas utilization device, with a particle concentrating device disposed between the particle remover and turbine. A particle detector is associated with the particle concentrator for detecting an undesirable level of particles above the predetermined size, and an alarm or other device is activated by the particle detecting means in response to an aberrant condition. The particle concentrator comprises a first conduit extending to a branch section, and branching to a second conduit and a third conduit. The second conduit, which may be blind, is a substantial continuation of the first conduit, while the third conduit makes an angle (e.g. about 90.degree.) with respect to the second conduit that is large enough that the vast majority of particles in the first conduit having a size greater than the predetermined size will flow into the second conduit, while gas and smaller particles will flow into the third conduit. The detector may be signal transmitter and receiver, an impact force sensing device, or a filter in the second conduit with a differential pressure sensor for sensing the pressure difference on opposite sides of the filter.
REFERENCES:
patent: 4304492 (1981-12-01), Fox
patent: 4531402 (1985-07-01), Reif et al.
patent: 4568365 (1986-02-01), Metcalfe et al.
patent: 4961389 (1990-10-01), Pillsbury
A. Ahlstrom Corporation
Bertsch Richard A.
Richman Howard R.
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