| 摘要 |
A method for installing a monitoring device with the simultaneous loading of a particulate catalyst into a vertical catalyst tube includes (i) introducing a monitoring device into the tube, (ii) introducing monitoring device alignment apparatus into the tube, (iii) introducing catalyst loading apparatus into the tube, (iv) loading catalyst particles into the top of the tube whereinafter they contact said catalyst loading apparatus as they pass down the tube, forming a uniform bed of catalyst beneath said catalyst loading apparatus and alignment apparatus and around said monitoring device, and (v) simultaneously removing the catalyst loading apparatus and alignment apparatus from the catalyst tube in timed relationship to the catalyst loading. The monitoring device alignment apparatus includes a ring member and two or more spacing members affixed to the ring member such that the ring member and the monitoring device are centrally positioned within the tube. |
| 主权项 |
1. An alignment apparatus suitable for installing a monitoring device within a particulate filled tube, the alignment apparatus comprising, a ring member through which said monitoring device may freely pass, two or more flexible wires, ropes or cables, attached to the ring member, and two or more spacing members selected from plates, rods, and springs radially extending from a perimeter of the ring member and sized to position the ring and monitoring device centrally within a tube, said alignment apparatus further comprising a monitoring device selected from the group consisting of a device for measuring temperature, a device for measuring pressure, a device for measuring flowrate, and a chemical sensor for monitoring the presence of a component in a process fluid. |
