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  • Users: 209larry
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  1. 209larry

    Monitoring solenoid valves

    mksoucy, You don't really need a limit switch for solenoid valve to determine whether it is open or close, unless valve is defective. Energised or deenergized status can be already interpreted as open or close or vice versa. 209larry
  2. 209larry

    High Glycol Losses in TEG Dehy Unit

    TEG dehydration is really a problematic process and requires close monitoring. Some already have shutdown facilities especially offshore. Pressure swing adsoption(PSA) is becoming popular as an option to TEG. Aside from moisture, PSA can remove Nitrogen and CO2 in an unmanned stations. 209larry
  3. 209larry

    Rupture Disc Application?

    rcontractor, Maybe you should change your transducer. Check what is the signal output and inquire from other pressure transducer vendor. You might find a specification that matches your requirement. Maybe a pressure transmitter can do the job. rgds, 209larry
  4. 209larry

    Use of a Control Valve as a flow meter??

    leggy, You can use control valve to measure flow if you have critical flow condition and there is no phase change which I think is not possible since you have saturated condition. An alternative is to relocate your US flow meter way below your vessel to prevent gas breakout. Three to four...
  5. 209larry

    Two-phase centrifugal pump design

    LPHS, You require multiphase pump of screw type not centrifugal pump. The pump is designed to function as compressor and pump. Regards, 209larry
  6. 209larry

    Oil in Water emulsion specialists

    Chowles, Crude oil with high asphaltene content has a high probability of having permanent emulsions. Asphaltenes are usually in cluster formations with resins and oil. Asphaltene clusters when crushed and opened by mixing or by passing thru chokes, orifice and control valves, attracts...
  7. 209larry

    Exporting coordinates to a database

    cessna98j, You can extract blocknames, coordinates and other attributes using ATTEXT to a text file in comma delimeted format *.cdf or space delimited format *.cdf which you can convert to spreasheet or database format. You have to prepare a template which will include BL: X , BL: Y and Bl: Z...
  8. 209larry

    P&ID

    Fritzfrederix, P&IDs in Autocad with well-engineered block attributes(visible and invisible) can save up to 65% of detail engineering manhours and gives a better accuracy than 'manually' cross-referenced construction drawings and documents. With a mouse click you can retrieve and generate...
  9. 209larry

    Control Valve Actuator Selection

    mborges, Depends on the manufacturer you want. Fisher and Masoneillan will offer you diaphragm actuators while Valtek, Bettis, rotork, hytork will offer you piston actuators. Manufacturers have the right models for you. What matters are cost, delivery and previous experience with the control...
  10. 209larry

    Level Meas with foam over liquid?

    FixerMan, K-tek has new level sensor wire rope radar type which they claim that foam, dirt,etc have no effect on measurement. The rope can be cut on site to suit requirement. The rope can be of stainless steel and other exotic metals. 209larry
  11. 209larry

    File list to Access

    zliazmei, 1. Make a batch file (*.bat) which contains this text for example: dir c:\sub\*.dwg/b >c:\sub\dirlist.txt 2. save it say on c:\sub\dirbat.bat 3. prepare RunApplication on macro with command line c:\sub\dirbat.bat 4. Run macro 5. Attach the text output dirlist.txt...
  12. 209larry

    Radioactive Level Measurement

    GGmurphy, If vessel is to be constructed, load cells is a good alternative to radio active level transmitters. rgds, 209larry
  13. 209larry

    Oil in Water emulsion specialists

    chowles, Emulsions are actually asphaltenes, and not formed by mixing oil and water. It structure contains oxygen, nitrogen and sometime sulfur. You cannot separate as oil and water. These are the characteristics of your reservoirs. The only way to combat these is reduce flowrates from the...
  14. 209larry

    Oily Water Separation On Board Ships.

    Lis, Ozonation and hydrogen peroxide treatments , followed by filtration have been found effective in oxidizing both single, double and triple bonds H-C including aromatic hydrocarbon. As long as bromate formation is not a problem they are good treatment solutions. They are use to disinfect...
  15. 209larry

    Full Bore vs Full Port

    Hi garcianos, My understanding is full bore refers to ball valves, full port refers to globe valves whose orifice size same as the PIPE ID. Rgds, 209larry
  16. 209larry

    Why is a Globe Valve called a Globe Valve?

    tvcad, g-lobe, g for the flowpath and lobe for the shape. 209larry
  17. 209larry

    Smoke stack design

    PoorRod, It looks like the first chimney is seamless pipe while the other one is a spiral weld. 209larry
  18. 209larry

    getting a text listing of block coordinates

    kristof79, If you are familiar with ATTEXT command,you will be able to extract the block insertion point coordinates by adding BL:x and BL:y into your extraction text. You should add a unique attribute i.e. CONVEYORNUMBER so other block coordinates will not be extracted. You can format the...
  19. 209larry

    Positive Pressurization Required

    The requirements are air locked doors (two door entry) air duct damper and manometer. Design will be similar to centralized HVAC system. But the question is how would you kill aspergillus spores in fresh air make-up, can it be killed by ozone or UV? 209larry
  20. 209larry

    Attributes to Excel and back to drawing

    Put the insertion points; xaxis and yaxis in your text file. You can sort using this data by excel if your bom is tabled not scattered. With regards to crashing since excel is faster than Autocad insert MSGBOX ( ,VBOK) to stop Excel macro processing. You can click OK when Autocad has finished...

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