Installation device for underwater expansion elbow flange gasket
An installation device, the technology of bending flange, applied in flange connection, passing components, mechanical equipment, etc., can solve the problems of difficult construction, time-consuming and laborious, increase the difficulty of operation, etc., to reduce the difficulty of underwater operation, accurate installation, The effect of improving efficiency and safety
Active Publication Date: 2018-09-18
CHINA NAT OFFSHORE OIL CORP +2
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Problems solved by technology
However, this method is more difficult to construct, not only time-consuming and labor-intensive, especially in an environment with low underwater visibility, it increases the difficulty of the operation; moreover, divers are easy to squeeze their hands
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Embodiment Construction
[0017] Such as figure 1 — Figure 4 As shown, the present invention includes: an inner sleeve structure 1, an outer sleeve structure 2 set outside the inner sleeve structure 1, wherein the inner sleeve structure 1 includes: an inner sleeve 1.2, which is installed on the inner sleeve by welding 1.2 The upper handle 1.1, the washer baffle 1.3 installed on the lower part of the inner sleeve 1.2 by welding, wherein the washer 3 is installed on the lower part of the washer baffle 1.3; the outer sleeve structure 2 includes: set in the inner sleeve structure 1 The outer outer sleeve 2.1 and the bolt holes provided on the outer sleeve 2.1, wherein a fastening knob 2.2 is installed in the bolt hole, and the outer sleeve 2.1 is pushed against the inner sleeve 1.2 through the fastening knob 2.2 to achieve a fixed internal The purpose of the sleeve structure 1 is to loosen the thread of the fastening knob 2.2 so that the inner sleeve structure 1 can move up and down.
[0018] The upper ...
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A mounting device of an underwater expansion bent flange gasket comprises an internal sleeve structure and an external sleeve structure which is arranged outside the internal sleeve structure in a sleeving manner; the internal sleeve structure comprises an internal sleeve, a handle mounted on the upper portion of the internal sleeve and a gasket baffle arranged on the lower portion of the internal sleeve; the lower portion of the gasket baffle is used for mounting of the gasket; the external sleeve structure comprises an external sleeve arranged outside the internal sleeve structure in a sleeving manner and a bolt hole formed in the external sleeve, a fastening rotary knob is mounted in the bolt hole, the external sleeve abuts against the internal sleeve through the fastening rotary knob, and threads of the fastening rotary knob are loosened, so that the internal sleeve structure vertically moves; according to the device, the underwater expansion bent flange gasket can be rapidly, safely and accurately mounted, the problems that in the flange set abut-joint process, the gasket is prone to collision and falling, and the hand of a diver is likely to be crushed are solved, the underwater work difficulty is greatly reduced, and efficiency and safety of underwater work are improved.
Description
technical field [0001] The invention relates to a seabed pipeline flange, in particular to an installation device for an underwater expansion bent flange gasket of a seabed pipeline. It belongs to the field of offshore oil engineering. Background technique [0002] During the installation and construction of the underwater expansion bend, it is necessary to place the gasket in the flange groove after the expansion bend flange and the flat pipe flange are combined, and then pre-tighten the flange. The traditional way of placing gaskets is as follows: [0003] 1) Before the expansion bend is lowered, use butter to stick the gasket into the groove of the flange, and then lower the expansion bend to assemble the flanges; however, in this method, there is a risk of gasket collision during the flange assembly process The risk will cause certain damage to the gasket, which not only affects the construction quality, but also easily causes the gasket to fall. [0004] 2) After the...
Claims
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IPC IPC(8): F16L23/18
CPCF16L23/18
Inventor 陈勇周会来张大伟潘东民薛方张保吉刘凯李敏雪王显杨利新
Owner CHINA NAT OFFSHORE OIL CORP