High-pressure pumps design

The high-pressure pump design is most often based on the operational principle of the piston pump (Fig. 3). 

Measurable Process Parameters. The RO process is relatively simple ia design. It consists of a feed water source, feed pretreatment, high pressure pump, RO membrane modules, and ia some cases, post-treatment steps. A schematic of the RO process is shown ia Figure 2a. 

There is only one simply stated, yet poorly defined, design criterion for this problem Propose some materials that have improved wear resistance for fabricating parts of high-pressure pumps and piping to be used in the pumping of coal slurries. 

Figure 9.2-1. Design of experimental batch-stirred-tank apparatus for synthesis under high pressure 1, reactor 2, separator P, high pressure pump PI, pressure indicator [17].

The permeate of the MF units is fed to two SWRO units equipped with high-pressure pumps with an energy-recovery system (Pelton wheel). The SWRO units comprise 44 pressure vessels loaded with 6 Dow/FilmTec SW30 membranes each. The designed permeate capacity of each unit is 210 m3/h per unit with a recovery of 50-5 5%. Antisealant is dosed to the feed stream of the SWRO with a concentration of 3 to 4 ppm [15]. 

Only the aboveground SCWO systems are discussed here. There is an underground SCWO system that uses hydrostatic pressure to avoid the need for high-pressure pumps. This system was designed by Oxydyne Corporation, Dallas, TX. 

High pressure continuously operated reactor. The design of the continuously operated apparatus is shown in Figure 2. An air operated high pressure pump delivered CO2 in the system. The gaseous fluid was dried when passing through columns packed with molecular sieves. The flow rate of C02 was 1.0 L per min. Equimolar solution of substrates (oleic acid and oleyl alcohol) was pumped into the system with an HPLC pump. Carbon dioxide and substrates were equilibrated in the saturation column. The reaction was performed in a... 

Figure 2. Design of continuously operating experimental apparatus for the synthesis of oleyl oleate under supercritical conditions 1-substrates, 2-saturation column, 3-enzymatic reactor, 4, 5-separators, P-high pressure pump, Pi-presssure indicator, T-temperature indicator,...

In LC, the sample is injected by means of an injection port into the mobile-phase stream delivered by the high-pressure pump and transported through the column where the separation takes place. The separation is monitored with a flow-through detector. In designing an LC system, one has to consider a variety of issues ... 

The cooling lock has an internal column of 300 mL and is machined from stainless steel. An outer jacket allows for a variety of coolants. The steam generator is a 2-L autoclave. A Milton-Royal high pressure pump allows for the continuous addition of water to the hot generator, ir necessary. The product collector if a pyrex vessel approximately 8 inches in diameter and 5 inches deep. Separated gas passes to a brine displacement vessel for volume measurement. A number of electrical and mechanical overrides plus barriers are designed to prevent any injury to the operator as a result of accidental discharge from the reactor or steam vessel. In addition, the control panel is located in a separate room adjacent to the reactor. 

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