Pulsafeeder Pulsalube 8 GS Ultra, Руководство по эксплуатации и техническому обслуживанию

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Schutte & Koerting • 2510 Metropolitan Drive • Trevose, PA 19053 • USA • tel: (215) 639-0900 • fax: (215) 639-1597 • www.s-k.com • sales@s-k.com
Water Jet Eductors Bulletin 2M
6
Pressure
Suction
Discharge
Fig. 10. FIG. 242 EDUCTOR.
Fig. 242 Condensate and Mixing Eductor
Fig. 242 Water Jet Eductors are designed to mix two
liquids intimately in various proportions in operations
where the pressure liquid is the greater proportion of
the mixture. Typical applications include: removal of
condensate; mixing gasoline with acid; blending and
proportioning chemical solutions; and diluting acids
and alkali.
In operation, the pressure liquid issues from the
nozzle at high velocity and entrains the suction liquid.
The extreme turbulence in the throat of the eductor
mixes the two liquids, blending and emulsifying
thoroughly and completely. Colloidal suspensions
can also be produced.
Entrainment ratio is dependent upon the eductor
design. Close regulation within the design limits is
usually obtained by a valve in the suction liquid line.
The pressure drop between the pressure liquid and
the discharge should be at least 10 psi to give
adequate mixing, and the difference between the
discharge pressure and the suction pressure should
not exceed 75% of the difference between the
operating pressure and the suction pressure.
When used for removal of condensate, the eductor
should be installed three feet below the condensate
level at the drain of the condenser. For performance
information, see Technical Data Supplement to
Bulletin 2M.
Table 4. Sizes and Dimensions, Fig. 242 Condensate and Mixing Eductor
*Note: Suction connection may vary to suit conditions.
Size No.
Connection in Inches Dimensions in Inches
Weight
in
Lbs.
Pressure Suction* Discharge A B C
2 2 1 - 2 2 4 3/4 11 3/4 3 3/4 50
2 1/2 2 1/2 1 1/4 - 2 1/2 2 1/2 3 1/2 15 1/4 4 60
3 3 2 - 3 3 4 17 15/16 4 5/8 70
4 4 2 - 4 4 5 9/16 20 3/8 5 1/2 80
6 6 3 - 6 6 6 1/4 29 6 270
8 8 4 - 8 8 14 1/16 35 1/2 7 13/16 450
C
A
B
Fig. 11. FIG. 242 EDUCTOR.
The 242 is the flanged type Condensate and
Mixing Eductor. This style, too, is made in
bronze or cast iron, bronze mounted, but can be
supplied in other materials. Nozzles and throat
bushings are removable.