Modular stuffing box
AssigneeGd Energy Products, LLC
InventorAdam Bradley Avey
Life of this patent
Estimating the term…
Abstract
A modular stuffing box for a reciprocating pump, and in particular, an externally mounted modular stuffing box. The modular stuffing box includes three or more sections that can be disassembled in individual sections. Being able to disassemble the sections allows for only the damaged section or sections requiring repair or removal to be replaced, thereby eliminating the need to remove or replace all of the sections of the stuffing box. The overall expenses are reduced and the ease of repair in the field is increased, because the materials and sections of the stuffing box that are in good condition and do not require repair can be reused as part of the stuffing box.
Claims20
A modular stuffing box configured to be coupled to a fluid end casing of a reciprocating pump, comprising:
- a first section including a mounting portion engageable with an opening formed in the fluid end casing, the first section defining a bore therein;
- a second section separate from the first section, the second section having an inner surface including an abrasion-resistant material, the inner surface defining a bore therein;
- a third section having an inner surface defining a bore therein;
- a fastener engageable with each of the first section, the second section, the third section, and the fluid end casing to secure the first section, the second section, and the third section to the fluid end casing such that the bores of the first section, the second section, and the third section are aligned;
- and
- one or more packing seals located in the bore of the second section.
A fluid end component, comprising:
- a first component having an inner surface defining a first central bore;
- a second component having an inner surface defining a second central bore, the inner surface of the second component being abrasion-resistant;
- a third component having an inner surface defining a third central bore, each of the first component, the second component, and the third component being independent from each other;
- a plurality of fasteners engageable with each of the first component, the second component, the third component, and the casing to mount the first component, the second component, and the third component to a fluid end casing;
- and
- one or more packing seals retainable in the fluid end component.
A stuffing box configured to be removably mounted to a fluid end casing of a reciprocating pump, the stuffing box comprising:
- a first section with an inner wall defining a bore;
- a second section with an inner wall defining a bore, the second section being separate from and movable proximate to the first section;
- a third section with an inner wall defining a bore, the third section being separate from and movable proximate to the second section;
- one or more packing seals locatable in at least one of the first section, the second section, or the third section;
- and
- a fastener engageable with each of the first section, the second section, the third section to mount the first section, the second section, and the third section to the casing, wherein any of the first section, the second section, and the third section is removable and replaceable by a similarly structured section.
Dependencies are inferred from the claim text.