Hi Rputvin,
The container exterior can't be modified because, as you correctly pointed out, it needs to maintain seaworthiness.
The concrete will serve as a "Inertia block" type of foundation for the compressors.
I'm debating whehter to use lag screws to attach the foundation to the container...
Thank you for the reply!
Two pours, first to epoxy the anchor bolts into the foundation holes, the second to grout the machine baseplate to the foundation. I've read that anchor bolt nuts should be hand tight to prevent movement of the equipment during grouting, hence the need for two pours...
We need to mount an identical pair of 11 kW shaft power oil-free reciprocating gas compressors inside a 20ft shipping container.
The manufacturer recommends a typical ACI-351 type 0.6 m thick steel reinforced concrete foundation weighing 5 times the skid weight. No specific information was...
We are trying to measure the noise emitted by our products (pumps and pressure exchangers). I found some ISO and ASTM standards that describe how this is done but don't know which one is the right one to use.
I am currently looking at ASTM E2202, E1014 and ISO 3704, 2204.
Please advise on which...
Spaaw,
I'm in the process of setting up a system much like yours:
A 4-20mA signal from a flow transducer will be fed in to LabView.
In LabView, a flow setting will be input by the user and a PID loop will send a 4-20mA signal to the analog current input on the VFD to set VFD speed.
Does anyone...
The distance between the shaft ends can be any value and I'm designing the fixture around the coupling. Anticipated shaft diameter will be 0.25 to 0.5 inches.
I am in the process of designing a hydrostatic thrust bearing test stand for a small hydraulic turbine. The turbine's shaft will be driven with a VFD controlled spindle motor at roughly 25000RPM. Power should be less than 1kW.
I am looking for a shaft coupling that can handle this type of speed...
You can't reverse speed instantaneously. The VFD would draw an infinite amount of current. Practically speaking, you will blow a fuse in the VFD or the circuit supplying electricity to it.
What you can do is decrease the ramp time and keep an eye on the resulting current draw. Keep decreasing...
Dear motor & drive experts,
I am designing a test stand using components available in the US (3x460V@60Hz)that will run in Australia(3x400V@50Hz). There are several ~10hp motors on the stand that drive centripetal pumps. The motors are controlled using VFDs, so frequency is not an issue. For...
Thanks for all the feedback.
To answer davidmoul's question, I just received a .75" diameter piece of annealed 430FR round bar 12' in length from Schmolz & Bickenbach, a German steel manufacturer that does business in the states. They will sell prototype quantities, I paid $120 including...
I am in the process of prototyping a constant-force solenoid for a valving application. I used 1018 steel for the flux guide and 416SS for the armature until now, but would like to improve performance by using either a Carpenter electrical iron or 1002 steel for the flux guide as well as 430FR...
