Flashboard blowout preventer with composite side door
A ram blowout preventer and composite technology, applied in the direction of wellbore/well components, earthwork drilling, sealing/package, etc., can solve the problems of heavy side door structure, time-consuming and laborious opening and closing, and avoid mechanism jamming , reliable connection and reduced labor intensity
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[0024] The present invention will be described in detail below in conjunction with the embodiments and the accompanying drawings.
[0025] A ram blowout preventer with a composite side door, referring to the accompanying drawings, includes a shell 1 with a ram 4 built in and side doors matched to both sides of the shell 1 . The side door includes an outer door 3 and an inner door 2, and the outer door 3 is fixed on the casing 1 by bolts arranged in the axial direction. The middle part of the outer door 3 has a through cavity adapted to the front end of the inner door 2 . The inner door 2 includes a sealing seat 21 and a connecting portion 22 , a positioning lug 23 is provided at the joint of the sealing seat 21 and the connecting portion 22 , and a lug groove 32 is provided on the end surface of the outer door 3 for matching. The connecting part 22 of the inner door 2 is inserted into the through cavity of the outer door 3 , the sealing seat 21 is attached to the end surface ...
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