Low-pressure injection system for pressurized fluid or gas lines
OwnerMike Kaminskiinventor
Life of this patent
Estimating the term…
Abstract
A fluid injection system delivers low-pressure fluids or gases into a pressurized main line by employing a sequenced bypass mechanism with electronically controlled solenoid valves. A branch line, connected at two points to the main line, comprises solenoid valves for flow isolation and pressure venting, a low-pressure pump for additive injection, and a controller for programmable operation. By temporarily diverting and depressurizing a segment of the branch line, the system enables precise and efficient dosing of chemicals or treatment fluids into high-pressure environments using economical low-power components. This architecture reduces cost, complexity, and energy consumption while supporting applications such as water treatment, chemical dosing, and automated pool maintenance.
Claims22
A method of introducing an additive into a circulating pressurized medium flowing through a main circuit operating under a main circuit pressure, comprising:
- isolating a portion of a dual-lumen conduit forming a branch circuit at a branch point off of the main circuit by actuating an isolation valve or flow-blocking component;
- depressurizing the isolated portion via a depressurization valve or flow-blocking component to a low or near-atmospheric condition, including a reduction to between 0 and 30% of the main-circuit pressure, where the depressurizing occurs with minimized continuous pressure drop in the main circuit;
- injecting a measured dose of the additive to the isolated portion using a pump that is in fluid communication with the isolated portion but not in fluid communication with the main-circuit;
- and
- restoring flow communication between the isolated portion of the branch circuit and the main circuit with a flow-restoration valve or flow-blocking component, wherein the restoring flow communication involves valve-openings or closings of the flow-restoration valve or flow-blocking component that are executed by a programmable controller as a timed, sensor-responsive, or algorithmic multi-phase sequence.
A system for introducing an additive into a circulating pressurized medium flowing through a main circuit operating under a main circuit pressure, said system comprising:
- a dual-lumen conduit forming a branch circuit at a branch point off of the main circuit;
- an isolation valve or flow-blocking component for isolating a portion of the branch circuit;
- a depressurization valve or flow-blocking component for reducing pressure in the portion of the branch circuit when the portion of the branch circuit is depressurized to create an isolated portion pressure that is less than the main circuit pressure, including a relative pressure to between 0 and 30% of the main-circuit pressure, the depressurization occurring with minimal continuous pressure drop;
- an injection device for injecting the additive, the injection device being operable at the portion of the branch circuit whenever the portion is isolated and depressurized relative to the main circuit pressure, the injection device being of a type that is not in fluid communication with the main-circuit;
- a flow-restoration valve or flow-blocking component for restoring fluid communication between the main circuit and the portion of the branch circuit after the portion was isolated and depressurized relative to the main circuit;
- and
- a controller for the isolation mechanism, the depressurization mechanism, the injection device, and the flow-restoration mechanism, where the controller is configured for executing a sequenced, timed multi-phase cycle;
- wherein the system is applicable to circulating water, wastewater, agriculture, semiconductor, gas injection, or biomedical infusion.
Dependencies are inferred from the claim text.