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40d:Screw pump

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Revision as of 18:36, 16 November 2007 by AdaIsDead (talk | contribs) (→‎Notes)
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A screw pump can lift water from below onto the same Z-level as the pump. Its is two tiles by one tile in size, and it can be either manually operated by a dwarf with the pump operator job or by using gear assemblies connected to water wheels and/or windmills. The direction you want the water to travel must be chosen at the time of construction.

Construction

Building a screw pump requires an enormous corkscrew, a stone, wood, or glass block, and a pipe section. The light green X must be next to the water source and the dark green X is where the water exits the pump. Having specified the direction of travel, you must ensure that the source side of the pump is placed adjacent to and above (in the z-axis) a liquid. The screw pump will draw the liquid up from below, and distribute it out of the other side of the pump. Screw pumps are constructions that can be removed to recover the building materials.

Diagram 2. Another example of a pump

Example layout

TOP VIEW SIDE VIEW ▒▒▒▒▒▒▒▒▒ ▒▒▒▒▒,,,, ▒▒▒▒▒▒▒▒▒ ≈≈≈≈▒,▒▒▒ <--pumping ≈≈≈≈%% ≈≈≈≈%%··· ▒▒▒▒▒▒≈≈≈ reservoir (below)--> ≈≈≈≈▒▒··· ▒▒▒▒▒▒··· <--pumping (same level) reservoir (below)-->
Diagram 1. Top and Side view of pump

Another example

See Diagram 2. This example is from a Bay12 forum thread.

  1. Side view of the basic pump unit. Water is moved from the lower floor to the upper; notice how the front of the pump does not need a floor.
  2. Side view of stacked screw pumps. Power is transmitted vertically through the missing floor tiles under the fronts of the pumps - no need for gearboxes in this design. The screw pump front prevents the water from flowing diagonally downwards.
  3. Top view of the basic pump unit.
  4. Top view with walls in place to prevent the receiving area from spilling out. If this is all it needed, these units could be stacked on top of each other, but it's missing one thing - dwarf access. There's no stairs/ramps, and no good place to put them either that wouldn't interfere with the adjacent levels' water containment.
  5. Solution for a freestanding tower - fire escape! Sure, you could consolidate the up and downstairs into a single up/down stair tile, but I like the zigzag and symmetrical arrangement this one presents. Just build these on top of each other, flipping horizontally each time, and bam. Minimal yet aesthetic multi-level water pumping.
Example courtesy of Reynard of the forums

Notes

  • The source of the pump must be directionally adjacent to "Open Space" that is directly above a filled pool of liquid.
  • The pump tiles are passable by dwarves, but the front of the pump must be accessible to be operated manually.
  • Active mechanisms connected to the pump will automatically start the pump; to prevent this either restrict water flow using floodgates, or put in a gear assembly linked to a lever to disconnect motion.
  • Pumps can also be used in conjunction with a water wheel or a windmill to become self-powered.
  • Pumps can not push water up additional Z-levels. That is, if you direct the output of a screw pump into a 1-square space surrounded by walls, the water will not "overflow" the walls.
  • Pumps appear to work by destroying water infront of them, and creating it behind them (unless there is already 7 units behind them), since they won't stop creating water until they have 7 units behind you can eaisly fill the world with water to the level of the pump if you have a loop between the input and the output, and also connect the output to the world.

Running a pump with a windmill

Building Windmills

Nothing to it - build it anywhere aboveground (note that the windmill won't do anything yet)

Building Pumps

The end you selected to 'pump from' will suck water up from the level below, then pump it out of the other end. Build with this in mind. If you want to pump from a river, the 'pump from' end should be on the river.

Both the pipe and corkscrew can be built by a carpenter, (the corkscrew is listed as something like 'enormous wooden cor' if you are using the single-width screen, but hitting Tab to expand the screen should reveal the full text).

Connecting windmills to pumps:

Note that it's much easier if the centre of the windmill lines up with the pump.

  1. Dig one level below the windmill and put a gear assembly directly beneath the axle (at centre of windmill). The windmill will start turning.
  2. You're probably going to want to bring your power up to the surface. To do this, dig away from the first gear until the surface is clear above. Place another gear here.
  3. Connect the gears together using a horizontal axle.
  4. Get a miner to channel on top of the second gear.
  5. Build a third gear in this channel. You should now have a turning gear on the surface.
  6. If you thought ahead, you should only need one axle to connect the surface gear to the pump. A pump can be powered from any side.

I recommend that you connect a lever to one of your gears beforehand. The pump will start pumping as soon as it has power.

You can change stuff around as the situation dictates, but that should get you started.

above
below

The pictures aren't lined up - the far right gear in the second picture is the one below the surface gear.

Alternate Uses

Pumps can also be built with no actual pumping in mind but as dwarven exercise machines. This is an excellent method to train haulers for better strength and agility or for future soldiers.

External links

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