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US 6,779,548 B2Granted
Chemical injection system and method
AssigneeCody Liners Ltd.
InventorLeonard E. McKeary
Life of this patent
Estimating the term…
Abstract
The invention relates to a method and a system for automatically injecting chemicals into a pressurized system.
Claims15
A system for introducing a chemical into a pressurized system comprising:
- a low pressure storage tank for storing a volume of chemical at a low pressure;
- a high pressure storage vessel in fluid communication with the low pressure storage tank and the pressurized system;
- and
- a control system in operative communication with the high pressure storage vessel for automatically equalizing the pressure between the low pressure storage tank and the high pressure storage vessel, for automatically equalizing the pressure between the high pressure storage vessel and the pressurized system and for controlling the flow of chemical through the system.
1 more element
A system for introducing a chemical into a pressurized system comprising:
- a low pressure storage tank for storing a volume of chemical at a low pressure;
- a high pressure storage vessel in fluid communication with the low pressure storage tank and the pressurized system;
- and
- a control system in operative communication with the high pressure storage vessel for automatically equalizing the pressure between the low pressure storage tank and the high pressure storage vessel, for automatically equalizing the pressure between the high pressure storage vessel and the pressurized system and for controlling the flow of chemical through the system wherein the control system includes:
- a micro-controller having a level sensor within the high pressure storage vessel,
- at least one vent valve operatively connected to the high pressure storage vessel for venting the pressure of the high pressure storage vessel, and
- at least one pressure valve operatively connected to the high pressure storage vessel and a pressure equalizing line operatively connected to the pressurized system, the pressure valve for equalizing the pressure of the high pressure storage vessel with the pressure of the pressurized system.
4 more elements
A method for automatically introducing a chemical into a pressurized system comprising:
- filling a low pressure storage tank with chemical;
- equalizing the pressure of a high pressure storage vessel to the pressure of the low pressure storage tank;
- filling the high pressure storage vessel with chemical from the low pressure storage tank;
- equalizing the pressure of the high pressure storage vessel to the pressure of the pressurized system;
- and
- injecting chemical into the pressurized system from the high pressure storage vessel wherein the pressure of the high pressure storage vessel and the flow of chemical from the low pressure storage tank to the high pressure storage vessel and from the high pressure storage vessel into the pressurized system is automatically controlled by a control system.
3 more elements
Dependencies are inferred from the claim text.