摘要:
A system is disclosed comprising a flexible tube attached to a reservoir containing a hazardous material neutralizing substance, and possibly pressurized with air or another gas. The tube is routed around the perimeter of a region where one or more hazardous material containers are stored. In the event of a leak that spreads to the perimeter of the tube, the tube material type is so selected to degrade structurally in response to contact with the hazardous material, thereby rupturing and releasing the neutralizing substance stored within the tube and attached reservoir. The neutralizing material used is selected to neutralize the hazardous material released, to mitigate further damage or eliminate the hazard completely, or at least until intervening personnel can arrive. When a perimeter tube is ruptured, the released internal pressure drop may also activate an alarm, that is either audible, or uses a wire or cellular line to contact authorities as concerning the nature of the spill, be it fire or police departments, or maintenance or property personnel. The system can be used without the assistance of electrical power or electronics (or with sources like a lithium battery for the alarm), in an inexpensive package that requires no direct human monitoring, and can be employed in very remote installations.
摘要:
In a remote data acquisition system a control unit transmits a radio signal simultaneously to a plurality of remote units. Each remote unit receives the radio signal at different times dependent on various system delay factors. A compensating delay is added in each remote unit in order to trigger each remote unit for data acquisition at the same time.
摘要:
A compact, affordable fire extinguishing system utilizes a combination of compressed inert gas tanks and solid propellent gas generator s to provide a blend of inert gasses to extinguish fires in an enclosure. The compressed inert gas tanks may contain gasses such as argon or carbon dioxide or a combination thereof The solid propellent gas generators may generate upon initiation either nitrogen or carbon dioxide or a combination thereof. The inert gasses from both sources are blended into a composition that will extinguish fires at concentrations that will allow human occupancy during discharge. Such a system can be constructed at a substantially smaller size than conventional compressed gas systems, due to the greater density of the inert gasses in the propellent foii in storage, which allows greater utility and affordability where installation space is limited or retrofit is desired into prior fire protection systems.
摘要:
High temperature polymerization process and products obtained therefrom are provided. The polymerization is conducted at above 225.degree. C. to produce polymers having a degree of polymerization below 50. The products are useful as detergent additives and for subsequent polymerization.
摘要:
Relatively short chain alkyl aromatic compounds are prepared by alkylating or transalkylating an alkylatable aromatic compound with a relatively short chain alkylating or transalkylating agent under sufficient reaction conditions in the presence of catalyst comprising zeolite MCM-49.
摘要:
A double walled smoke stack is made up of stackable sections. The top part of each section has a member extending between inner and outer shells and is either downwardly prestressed towards the inner shell or is flexible. This allows the inner shell to upwardly expand.
摘要:
Systems and methods for controlling the temperature and pressure of a cryogenic liquid methane storage unit are provided. The disclosed systems and methods generate methane gas from a reservoir of liquid methane stored within the methane storage unit, vent the methane gas through one or more outlet valves connected to the methane storage unit, and generate electric power using the vented methane gas. The generated electric power can then be used to initiating a cooling cycle, which reduces the temperature of said reservoir of liquid methane and reduces the pressure in said methane storage unit. Micro anaerobic digesters and methane storage units may be configured in a networked environment with a central controller that monitors remote units.
摘要:
An apparatus that vents atmosphere air and allows for the pressurization of a sealed beverage container with carbon dioxide for the purpose of reducing oxidation and preserving or re-introducing effervescence to the beverage housed within the container. The previously mentioned apparatus can be integrated and/or retrofitted to accommodate the various sizes and shapes of current and future portable beverage containers. For the purpose of this apparatus, “portable beverage container” is defined as having a volume less than or equal to 5 gallons and the apparatus uses external or internally integrated pressure regulated gas sources to pressurize the container.
摘要:
A device for protecting flammable fluid reservoirs, or the regions in immediate proximity thereof, from the hazards due to impact and reservoir rupture, and subsequent potential of fire, corrosion or other damage or injury due to contact with reactive fluids. Such impacts may arise from collisions, such as encountered in transportation systems, or structural or thermal failure and/or rupture of components and systems, or separation of system components. Such a device may be formed as a close-fitting shroud over such components, or surrounding fittings and junctions of mating components in such systems, or mounted near the location of such components in the direction of impact or failure. Such a device may have a pattern of pre-scored lines to facilitate break-up of the device upon impact or thermal stress. Upon activation, the device shall discharge material contents that prevent or extinguish fires, neutralize corrosive or caustic materials, or otherwise protect equipment and personnel of the hazards from the protected component or system fluid contents. Such a device may be constructed of more than one individual component to optimize outer surface break-up behavior while accommodating desired cost, thickness and weight goals achievable by the use of other materials that comprise the remaining components of the device.