Japan, Feb. 27 -- IHI PLANT SERVICES CORP has got intellectual property rights for 'MAINTENANCE METHOD FOR DISPENSING PUMP IN AMMONIA TANK.' Other related details are as follows:
Application Number: JP,2021-205368
Category (FI): F17C9/02
Stage: PROBLEM TO BE SOLVED: To prevent ammonia gas from being diffused to the atmosphere, to perform maintenance work for a dispensing pump in an ammonia tank safely.SOLUTION: An ammonia tank 1 comprises a tank 2 that stores liquid ammonia 100, a pump barrel 3 inserted from a top part 2a of the tank 2 to near a bottom part 2b, a foot valve 4 provided at the lower end part of the pump barrel 3, and a dispensing pump 5 suspended inside the pump barrel 3 and whose weight can open the foot valve 4. A maintenance method for a dispensing pump in the ammonia tank comprises: pulling up the dispensing pump 5 to close the foot valve 4; suctioning ammonia gas from the pump barrel 3 while introducing purge gas into the pump barrel 3; and extracting the dispensing pump 5 from the upper end part of the pump barrel 3 while detoxifying the ammonia gas by a detoxification device 8.SELECTED DRAWING: Figure 6 (Grant)
Filing Date: Dec. 17, 2021
Publication Date: June 29, 2023
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
