BWR jet pump inlet-mixer main wedge with inserts

摘要

Disclosed are various wedges that may be used in a restrainer bracket of a jet pump assembly. The jet pump assembly may include a restrainer bracket having an upper bracket and a lower bracket connected to an inlet mixer. A wedge may be provided between the upper bracket and the lower bracket and a wedge rod may pass through a slotted hole of the wedge. Ends of the wedge rod may be attached to the upper and lower brackets. The restrainer bracket may further include a yolk-like member which surrounds the inlet mixer and is connected to a riser pipe. The wedge may include an inclined surface which is configured to engage with a restrainer bracket pad of the yolk-like member. The wedges may further include inner curved surfaces which contact the wedge rod and the inner curved surfaces may be part of an insert that may be inserted in the wedge.

主权项

1. A wedge comprising:
a head including a first surface, the first surface being substantially fiat, the first surface enclosing a first slotted hole having a first length and a first height differing from the first length, the first slotted hole engaging a second surface, the second surface being a curved, chamfered surface extending below the first surface and terminating in a second slotted hole having a second length and a second height differing from the second length; a neck arranged below and connected to the head; and a body arranged below and connected to the neck, the body including an inclined surface and a third surface, the third surface being substantially fiat, the third surface enclosing a third slotted hole having a third length and a third height differing from the third length, the third slotted hole engaging a fourth surface, the fourth surface being a curved chamfered surface extending above the third surface and terminating in a fourth slotted hole having the second length and the second height, the second slotted hole extending through the head, the neck, and the body and terminating at the fourth slotted hole.