Adding a Pump to the Diagram

In the MCH simulation, you did not model the feed pump to the

column; instead, you simply specified the pressure in the feed

stream. However, you may wish to include a feed pump in a

drawing used for a report or display.

Place a pump in your diagram and split Stream 1 into two streams

– one entering the pump and one leaving the pump and entering

Block B1. Follow the directions below.

1 Enter PFD Mode by selecting View | PFD Mode if you have

not already done so. Look for the colored border on the process

flowsheet and the words PFD Mode in the bottom status bar to

ensure you are in PFD Mode.

2 From the Model Library, click the Pressure Changers tab.

3 Click next to the Pump unit operation model.

4 Hover over the icons to see their labels and select ICON1.

5 Drag (click and hold) the selected icon to the Process

Flowsheet window to create Pump block B2.

6 Place the pump icon in the middle of Stream 1.

7 Select Stream 1 and right-click.

8 From the shortcut menu, select Reconnect Destination.

Stream 1 is now disconnected from Block B1 and you are ready to

reconnect it to the pump.

9 Move the cursor arrowhead to an inlet port on the pump and

left-click.

Stream 1 is now enters the pump and you are ready to create a new

stream from the pump to Block B1.

10 Click once on on the left side of the Model Library.

11 Move the cursor (now a crosshair) to an outlet port on the

pump and click once.

12 Move the cursor (now an arrowhead) to a feed port on

Block B1 and click once to create a fifth stream.

Note: To cancel connecting the stream at any time, press ESC.

Дата добавления: 2015-08-20