Changing Flowsheet Connectivity

To change the flowsheet connectivity, you can:

• Delete blocks and streams

• Rename blocks and streams

• Change stream connections

• Insert a block into a stream

Deleting Blocks and Streams

To delete a block or stream:

1 Click the block or stream to select it.

2 Click with the right mouse button on the block or stream.

3 From the popup menu that appears, click Delete Block or Delete Stream

4 When prompted, click OK.

Tip You can also select the block or stream, then press Delete

on the keyboard.

Renaming Blocks and Streams

To rename a block or stream from the flowsheet:

1 Select the block or stream you want to rename.

2 Click the right mouse button on the block or stream.

3 From the menu that appears, click Rename Block or Rename Stream.

4 When prompted, enter the new name and click OK.

You can also rename blocks and streams using the Data Browser.

Options for Naming Blocks and Streams

By default, Aspen Plus automatically assigns IDs to blocks and streams. You can either:

• Supply prefixes for the automatic naming

• Turn off the automatic naming and be prompted for a name for each block and stream as you place it

To specify the naming options:

1 From the Tools menu, click Options.

2 Click the Flowsheet tab.

3 Select the Automatically Assign Block Name with Prefix

and/or Automatically Assign Stream Name with Prefix check box(es).

4 If desired, you can also type a prefix in the field. A sequential number is added to the prefix. If no prefix is supplied, the blocks or streams are numeric.

For more information on flowsheeting options, see Using the Flowsheet Tab.

Changing Stream Connections

You can disconnect the end of a stream from a unit operation block and then connect it to another port on the same or a different block.

To change the port that a stream is connected to:

1 Click the stream.

2 Click the right mouse button.

3 From the menu that appears, click:

• Reconnect Source to disconnect the source end of the stream

• Reconnect Destination to disconnect the output end of the stream

For each block all available ports are highlighted. For example,

for a feed stream, the outlet ports are highlighted. The ID of the stream appears in a text box by the end that is being reconnected. Ports that must have at least one stream connected are shown in red. Others are shown in blue.

4 Continue as you would for a new stream. Click the port to which you want to connect the stream end, or click a blank part of the flowsheet to place a feed or product.

Inserting a Block into a Stream

To insert a block into a stream:

1 Place the new block on the flowsheet by selecting a unit operation model from the Model Library and dragging it to the flowsheet. For more information, see Placing Blocks.

2 Select the desired stream and click the right mouse button on

the stream.

3 From the menu that appears, click Reconnect Source or

Reconnect Destination.

4 Click a port on the new block to reconnect the stream to it.

5 Connect a new stream from the new block to the original source or destination, by clicking the STREAMS icon and clicking the inlet or outlet port. For more information, see Placing Blocks.

Дата добавления: 2015-07-15