Safety shutdown systems and methods for LNG, crude oil refineries, petrochemical plants, and other facilities

    公开(公告)号:US11105526B1

    公开(公告)日:2021-08-31

    申请号:US16145363

    申请日:2018-09-28

    摘要: Methods and systems for maintaining an atmosphere inside a habitat enclosing a work station and shutting down one, more than one, or all operational equipment inside and/or outside the habitat upon the occurrence of an adverse event. Concentrations of explosive, flammable, and/or poisonous gases or vapors are sensed, transmitted to a logic device, as are temperature, pressure, and/or humidity. HVAC units and air extraction units controlled by the logic device maintain acceptable pressure, temperature, and/or humidity. Any grit and dust may be extracted. Any explosive, flammable, and/or poisonous gases or vapors are extracted employing an emergency gas extraction sub-system controlled by the logic device. The logic device shuts down one, more than one, or all operational equipment inside and/or outside the habitat (for example as dictated by the client, law, or regulation) upon receiving one or more adverse event signals.

    SYSTEMS AND METHODS FOR CATALYST SCREENS IN SELECTIVE CATALYTIC REDUCTION REACTORS

    公开(公告)号:US20190083929A1

    公开(公告)日:2019-03-21

    申请号:US16193917

    申请日:2018-11-16

    IPC分类号: B01D53/86 B01D53/94 B01J33/00

    摘要: A system for use in selective catalytic reduction reactor is disclosed. The system may include a catalyst bed and a screen located close to the catalyst bed in a manner so that flow of flue gas to the catalyst bed contacts the screen before it contacts the catalyst bed. The screen may be adapted to support a weight of at least 400 pounds above the catalyst bed so that the weight is not imposed on the catalyst. The screen may have a plurality of holes across its surface in a manner so that the screen is adapted to change the velocity distribution of the flue gas as it flows through the screen.

    APPARATUS AND SYSTEM FOR THERMAL SPRAY AND RELATED METHODS THEREOF

    公开(公告)号:US20230183848A1

    公开(公告)日:2023-06-15

    申请号:US17974310

    申请日:2022-10-26

    摘要: This disclosure provides an apparatus, system, and method for thermal spraying a metal cladding on a substrate. The apparatus may include a housing having a first electrode and a second electrode disposed in the housing. The second electrode can be spaced apart from the first electrode. The apparatus includes a first contact tip removably attached to the first electrode and a second contact tip removably attached to the second electrode. The position of the first contact tip and second contact tip is configured to be selectively adjusted on the first electrode and the second electrode to provide a plurality of contact surfaces for a feedstock wire. The apparatus includes a nozzle between the first contact tip and the second contact tip. The first contact tip and the second contact tip are configured to contact and deflect a wire towards the nozzle.

    SAFETY SHUTDOWN SYSTEMS AND METHODS FOR LNG, CRUDE OIL REFINERIES, PETROCHEMICAL PLANTS, AND OTHER FACILITIES

    公开(公告)号:US20210396411A1

    公开(公告)日:2021-12-23

    申请号:US17463182

    申请日:2021-08-31

    摘要: Methods and systems for maintaining an atmosphere inside a habitat enclosing a work station and shutting down one, more than one, or all operational equipment inside and/or outside the habitat upon the occurrence of an adverse event. Concentrations of explosive, flammable, and/or poisonous gases or vapors are sensed, transmitted to a logic device, as are temperature, pressure, and/or humidity. HVAC units and air extraction units controlled by the logic device maintain acceptable pressure, temperature, and/or humidity. Any grit and dust may be extracted. Any explosive, flammable, and/or poisonous gases or vapors are extracted employing an emergency gas extraction sub-system controlled by the logic device. The logic device shuts down one, more than one, or all operational equipment inside and/or outside the habitat (for example as dictated by the client, law, or regulation) upon receiving one or more adverse event signals.