Abstract:
A medical gas alarm systems and associated methods are disclosed. A method of monitoring the medical gas system includes the steps of monitoring a characteristic of a medical gas system using at least one monitoring instrument positioned in a medical gas supply network; generating and sending a particular signal from the monitoring instrument to a CPU when the characteristic measured by the monitoring instrument passes a predetermined threshold; generating a fault signal from the CPU when the CPU determines that a fault condition has occurred; retrieving a stored message from the CPU in response to the fault signal, and in which the stored message other than the fault or threshold condition monitored by the instrument; and sending the stored message from the CPU to an output at a medical gas alarm module.
Abstract:
A low-loss cryogenic fluid supply system having at least one main cryogenic fluid tank and a backup cryogenic fluid tank each having a vent set to a first pressure P1 and a pressure build circuit set to a second pressure P2, a main tank gas supply line configured to supply gas to a junction at a third pressure P3, a main tank liquid supply line configured to supply gas to the junction at a fourth pressure P4, a backup tank liquid supply line configured to supply gas to the junction at a fifth pressure P5, a backup tank backpressure regulator configured to supply gas to a point upstream to the main tank gas supply line at a sixth pressure P6, and an outlet supply line configured to supply gas from the junction at an end use pressure Pu, where P1 > P3≥ P2, P1≥ P6 > P2, P6≥ P3 > P4 > P5 > Pu.
Abstract:
A low-loss cryogenic fluid supply system having at least one main cryogenic fluid tank and a backup cryogenic fluid tank each having a vent set to a first pressure P1 and a pressure build circuit set to a second pressure P2, a main tank gas supply line configured to supply gas to a junction at a third pressure P3, a main tank liquid supply line configured to supply gas to the junction at a fourth pressure P4, a backup tank liquid supply line configured to supply gas to the junction at a fifth pressure P5, a backup tank backpressure regulator configured to supply gas to a point upstream to the main tank gas supply line at a sixth pressure P6, and an outlet supply line configured to supply gas from the junction at an end use pressure Pu, where P1 > P3≥ P2, P1≥ P6 > P2, P6≥ P3 > P4 > P5 > Pu.
Abstract:
An improved apparatus and method for monitoring the levels of propane or other consumable liquid in remotely located storage tanks and coordinating delivery of liquid to those tanks, including an improved method of using the remote monitoring data to identify out-of-ordinary conditions at remote tanks, optimally schedule purchases or deliveries, improve safety, and more efficiently operate a propane dealership. More accurate and timely information concerning the status of customer tanks serves to improve operational efficiencies and increase safety. Data received from remote sensors can be collected and organized so that it is easily understood and utilized through the implementation of a user interface accessible via the Internet that allows the information to be presented in an efficient graphical and contextual fashion. Operational efficiencies can also be improved by calculating site-specific Degree-days and K-factors for each tank and by taking historical propane usage for each tank, weather conditions, and projected fuel usage into account.
Abstract:
A system and method of monitoring a pressurized container having an auxiliary device are provided. The system includes a sensor operable to provide a signal representative of at least one operating condition of the pressurized container. The system also includes a control operable to receive the signal from the sensor and generate a warning when the sensed operating condition will impact the operation of the auxiliary device.
Abstract:
A vessel fill level is qualitatively determined and indicated by a device having a base and a vessel-supporting member that is resiliency suspended inwardly from and above the base. The base has an annular body with at least three stanchions, symmetrically spaced around the annular body, as well as a plurality of radially- inwardly-extending arms. Each stanchion has a vertical slot and each of the arms meet at an axial base member. The vessel support has a plurality of radially-outwardly extending arms and is adapted to support the vessel. A distal end of each of the arms is received and retained in one of the vertical slots, where a spring connects the arm to the base. Means for distinguishing at least two levels of vertical separation between the base and the vessel-supporting member provides a qualitative signal to a display that may be on the base or remote to the device.
Abstract:
An apparatus for delivering a process fluid comprises a storage vessel, a process pump for pumping the process fluid from the storage vessel, a hydraulic drive system comprising a hydraulic drive unit operatively connected to drive the process pump, a pressure sensor for measuring hydraulic fluid pressure of the pressurized hydraulic fluid in the hydraulic drive system, and, an electronic controller programmed to monitor a signal representative of hydraulic fluid pressure that is measured by the pressure sensor, process the signal to determine when the storage vessel is empty, and stop the process pump when the storage vessel is empty. The disclosed method relates to using the disclosed apparatus to measure hydraulic fluid pressure in the hydraulic drive system, process measured hydraulic fluid pressure to determine when the storage vessel is empty, and stop the process pump when the storage vessel is empty.
Abstract:
A system and method of monitoring a pressurized container having an auxiliary device are provided. The system includes a sensor operable to provide a signal representative of at least one operating condition of the pressurized container. The system also includes a control operable to receive the signal from the sensor and generate a warning when the sensed operating condition will impact the operation of the auxiliary device.
Abstract:
A warning device (10) configured for removable mounting in combination with a high pressure gas cylinder (12) and a regulator (16) used to regulate the high pressure gas supplied by the cylinder (12). The device (10) compression mounts between the regulator (16) and tank outlet (18) on conventional portable oxygen and gas supply systems using a specially configured manifold (14). The device (10) features one or a combination of alarms, from a group including audio (40), visual (42), electronic, and remotely transmitted alarms (44). These alarms are activated by a pressure switch (36) monitoring the remaining supply in the gas cylinder (12) through a conduit (32) in the manifold (14). The alarm signal from the device (10) alerts the user, or a third party monitoring the user, of current tank pressure or will sound an alarm when remaining high pressure gas inside the gas cylinder (12) drops below a predetermined level.