Streamline coal slurry letdown valve

Title: Streamline coal slurry letdown valve

Full Record
Other Related Research

Abstract

A streamlined coal slurry letdown valve is featured which has a two-piece throat comprised of a seat and seat retainer. The two-piece design allows for easy assembly and disassembly of the valve. A novel cage holds the two-piece throat together during the high pressure letdown. The coal slurry letdown valve has long operating life as a result of its streamlined and erosion-resistance surfaces.

Inventors:

Platt, Robert J ^[1]; Shadbolt, Edward A ^[2]

Dover, NJ
Basking Ridge, NJ

Issue Date:: 1983-01-01

Research Org.:: Exxon Research and Engineering Co. (Florham Park, NJ)

Sponsoring Org.:: USDOE

OSTI Identifier:: 864767

Patent Number(s):: 4413646

Assignee:: Exxon Research and Engineering Co. (Florham Park, NJ)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16K - VALVES

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Show more

F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16K - VALVES
F16K27/02 - of lift valves
F16K1/427 - {Attachment of the seat to the housing by one or more additional fixing elements}
F16K25/04 - Arrangements for preventing erosion, not otherwise provided for

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T137/86791 - Piston
Y10T137/4259 - With separate material addition
Y10T137/7036 - Jacketed

Show less

DOE Contract Number:: FC05-77ET10069

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: streamline; coal; slurry; letdown; valve; streamlined; featured; two-piece; throat; comprised; seat; retainer; design; allows; easy; assembly; disassembly; novel; cage; holds; pressure; operating; life; result; erosion-resistance; surfaces; operating life; coal slurry; slurry letdown; letdown valve; pressure letdown; design allows; /137/251/

Citation Formats


                    Platt, Robert J, and Shadbolt, Edward A. Streamline coal slurry letdown valve.  United States: N. p., 1983. 
        Web.

Copy to clipboard


                    Platt, Robert J, & Shadbolt, Edward A. Streamline coal slurry letdown valve.  United States.

Copy to clipboard


                    Platt, Robert J, and Shadbolt, Edward A. Sat .  
        "Streamline coal slurry letdown valve".  United States.  https://www.osti.gov/servlets/purl/864767.

Copy to clipboard


                    
@article{osti_864767,

  title        = {Streamline coal slurry letdown valve},

  author       = {Platt, Robert J and Shadbolt, Edward A},

  abstractNote = {A streamlined coal slurry letdown valve is featured which has a two-piece throat comprised of a seat and seat retainer. The two-piece design allows for easy assembly and disassembly of the valve. A novel cage holds the two-piece throat together during the high pressure letdown. The coal slurry letdown valve has long operating life as a result of its streamlined and erosion-resistance surfaces.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1983},

  month        = {1}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Streamline coal slurry letdown valve

Patent Platt, R J; Shadbolt, E A

A streamlined coal slurry letdown valve is featured which has a two-piece throat comprised of a seat and seat retainer. The two-piece design allows for easy assembly and disassembly of the valve. A novel cage holds the two-piece throat together during the high pressure letdown. The coal slurry letdown valve has long operating life as a result of its streamlined and erosion-resistance surfaces. 5 figs.
Fuel injection of coal slurry using vortex nozzles and valves

Patent Holmes, Allen B [Rockville, MD]

Injection of atomized coal slurry fuel into an engine combustion chamber is achieved at relatively low pressures by means of a vortex swirl nozzle. The outlet opening of the vortex nozzle is considerably larger than conventional nozzle outlets, thereby eliminating major sources of failure due to clogging by contaminants in the fuel. Control fluid, such as air, may be used to impart vorticity to the slurry and/or purge the nozzle of contaminants during the times between measured slurry charges. The measured slurry charges may be produced by a diaphragm pump or by vortex valves controlled by a separate control fluid.more »« less
Full Text Available
Coal liquefaction process utilizing coal/CO.sub.2 slurry feedstream

Patent Comolli, Alfred G [Yardley, PA]; McLean, Joseph B [S. Somerville, NJ]

A coal hydrogenation and liquefaction process in which particulate coal feed is pressurized to an intermediate pressure of at least 500 psig and slurried with CO.sub.2 liquid to provide a flowable coal/CO.sub.2 slurry feedstream, which is further pressurized to at least 1000 psig and fed into a catalytic reactor. The coal particle size is 50-375 mesh (U.S. Sieve Series) and provides 50-80 W % coal in the coal/CO.sub.2 slurry feedstream. Catalytic reaction conditions are maintained at 650.degree.-850.degree. F. temperature, 1000-4000 psig hydrogen partial pressure and coal feed rate of 10-100 lb coal/hr ft.sup.3 reactor volume to produce hydrocarbon gas andmore »« less
Full Text Available
Apparatus and method for pumping hot, erosive slurry of coal solids in coal derived, water immiscible liquid

Patent Ackerman, Carl D [Olympia, WA]

An apparatus for and method of pumping hot, erosive slurry of coal solids in a coal derived, water immiscible liquid to higher pressure involves the use of a motive fluid which is miscible with the liquid of the slurry. The apparatus includes a pump 12, a remote check valve 14 and a chamber 16 between and in fluid communication with the pump 12 and check valve 14 through conduits 18,20. Pump 12 exerts pressure on the motive fluid and thereby on the slurry through a concentration gradient of coal solids within chamber 16 to alternately discharge slurry under pressure frommore »« less
Full Text Available
Supersonic coal water slurry fuel atomizer

Patent Becker, Frederick E [Reading, MA]; Smolensky, Leo A [Concord, MA]; Balsavich, John [Foxborough, MA]

A supersonic coal water slurry atomizer utilizing supersonic gas velocities to atomize coal water slurry is provided wherein atomization occurs externally of the atomizer. The atomizer has a central tube defining a coal water slurry passageway surrounded by an annular sleeve defining an annular passageway for gas. A converging/diverging section is provided for accelerating gas in the annular passageway to supersonic velocities.
Full Text Available

Similar Records