Hydraulic pump with in-ground filtration and monitoring capability
Abstract
A hydraulically operated pump is described for in-ground filtering and monitoring of waters or other fluid sources, includes a hollow cylindrical pump housing with an inlet and an outlet, filtering devices positioned in the inlet and the outlet, a piston that fits slidably within the pump housing, and an optical cell in fluid communication with the pump housing. A conduit within the piston allows fluid communication between the exterior and one end of the piston. A pair of o-rings form a seal between the inside of the pump housing and the exterior of the piston. A flow valve positioned within the piston inside the conduit allows fluid to flow in a single direction. In operation, fluid enters the pump housing through the inlet, flows through the conduit and towards an end of the pump housing. The piston then makes a downward stroke closing the valve, thus forcing the fluid out from the pump housing into the optical cell, which then takes spectrophotometric measurements of the fluid. A spring helps return the piston back to its starting position, so that a new supply of fluid may enter the pump housing and the downward stroke can begin again. The pump may bemore »
- Inventors:
- Issue Date:
- Research Org.:
- Savannah River Site (SRS), Aiken, SC (United States)
- OSTI Identifier:
- 392636
- Patent Number(s):
- 5569021
- Application Number:
- PAN: 8-373,433
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- DOE Contract Number:
- AC09-89SR18035
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 29 Oct 1996
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 40 CHEMISTRY; 54 ENVIRONMENTAL SCIENCES; SAMPLERS; DESIGN; GROUND WATER; SAMPLING; SPECTROPHOTOMETRY; FILTRATION; OPERATION; PUMPING
Citation Formats
Hopkins, C D, Livingston, R R, and Toole, Jr, W R. Hydraulic pump with in-ground filtration and monitoring capability. United States: N. p., 1996.
Web.
Hopkins, C D, Livingston, R R, & Toole, Jr, W R. Hydraulic pump with in-ground filtration and monitoring capability. United States.
Hopkins, C D, Livingston, R R, and Toole, Jr, W R. Tue .
"Hydraulic pump with in-ground filtration and monitoring capability". United States.
@article{osti_392636,
title = {Hydraulic pump with in-ground filtration and monitoring capability},
author = {Hopkins, C D and Livingston, R R and Toole, Jr, W R},
abstractNote = {A hydraulically operated pump is described for in-ground filtering and monitoring of waters or other fluid sources, includes a hollow cylindrical pump housing with an inlet and an outlet, filtering devices positioned in the inlet and the outlet, a piston that fits slidably within the pump housing, and an optical cell in fluid communication with the pump housing. A conduit within the piston allows fluid communication between the exterior and one end of the piston. A pair of o-rings form a seal between the inside of the pump housing and the exterior of the piston. A flow valve positioned within the piston inside the conduit allows fluid to flow in a single direction. In operation, fluid enters the pump housing through the inlet, flows through the conduit and towards an end of the pump housing. The piston then makes a downward stroke closing the valve, thus forcing the fluid out from the pump housing into the optical cell, which then takes spectrophotometric measurements of the fluid. A spring helps return the piston back to its starting position, so that a new supply of fluid may enter the pump housing and the downward stroke can begin again. The pump may be used independently of the optical cell, as a sample pump to transport a sample fluid from a source to a container for later analysis. 5 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {10}
}