Low emission multiple sealing system for floating roof tanks

Details Low emission multiple sealing system for floating roof tanks Low emission multiple sealing system for floating roof tanks

Category

B - Operations, Transporting

Subcategory

65

Subsubcategory

D

CPC

20/15.26

IPC codes

B65D 85/00 (2006.01) B65D 88/50 (2006.01)

Type

Patent

Patent number

CA 1051164

Description

SPECIFICATION WAYNE E. NUTTALL and WILLIAM H. PAGE A LOW EMISSION MULTIPLE SEALING SYSTEM FOR FLOATING ROOF TANKS ABSTRACT OF THE INVENTION A low emission multiple sealing system for a floating roof liquid hydrocarbon storage tank is provided. The sealing system utilizes a double sealing arrangement in addition to, in a preferred embodiment, a conventional weather seal. The double seal- ing arrangement includes two functionally independent generally toroidal shaped sealing elements positioned one above the other and filling the annular gap between the floating roof and the inner surface of the storage tank. In order to provide for in- creased sealing efficiency and to eliminate the deleterious effects of wind and other ambient conditions, the double sealing elements are configured having effective vapor sealing efficiencies and are separated from one another a distance which will maximize the runback, to the tank, of liquid left on the inner storage tank wall during diurnal contraction and/or on liquid hydrocarbon unloadings. Additionally, elements are provided in the volumetric space between the two seals for minimizing the volume between the two in order to create a more easily saturated space. As a result, runback of liquid to the tank is increased. The specific configuration of the seals and their spacing relative to one another and to the floating roof provides for a more efficient low emission sealing system for reducing vapor emissions to the ambient atmosphere.

Application Number

275422

Affiliated with

Also associated with

Rating

Low emission multiple sealing system for floating roof tanks does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low emission multiple sealing system for floating roof tanks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low emission multiple sealing system for floating roof tanks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-171701