FIELD: technological modules productionю
SUBSTANCE: invention relates to the production of technological modules (TM) of deep-sea submersibles, namely, to technology and equipment for hydraulic testing of cylindrical shells for strength against shear forces (in the cross section of the shell) and from normal tensile stresses (in the longitudinal section of the shell). In the method for testing TM for internal pressure, two technological frames (TF) are welded on the outer and inner surfaces of the TM at a distance of at least 200 mm from each end. Then, the basic axis of the TM is adjusted by optically pointing the targets relative to each other, which are mounted on shergens in the end sections of the internal cavity of the TM. After that, the technological module is installed on stacking carts in the working area of the stand, where the base axis of the TM is aligned with the longitudinal axis of the stand along its reference targets using optical guidance and the corresponding mechanisms of the stacking carts, after which the longitudinal axis of the stand is aligned with the axis of the stationary part of the plug using optical guidance and use of targets, as well as horizontal and vertical NU microelectric drives. With the help of a crane, the removable part of the plug is installed, which is hung, compacted and fixed on the stationary part of the plug in the aiming device, and the inner cavity of the hole of the removable part of the plug is guided to the outer diameter of the technological module until it comes into contact with the end face of the technological frame is carried out according to a digital program using horizontal microelectric drives. and vertical movements of the pointing device and axial movement of the platforms from laser triangulation distance sensors that emit laser beams to the outer base surfaces of the reflectors mounted on the plug and receive signals reflected from their surface for introduction into the control circuit of the pointing device. The flange connection is mounted on the process frame and a conical self-sealing is formed, after which all the above operations are performed with another plug at the opposite end of the process module, the cavity of the process module is filled with working fluid using a stationary pumping station with pressure and drain pipelines and tested for strength and tightness. The stand for testing TM deep-sea vehicles for internal pressure containing a carrier frame consists of two side walls connected by two jumpers, on which guides are mounted for moving two vertical platforms installed parallel to each other on self-propelled carts with microelectric drives, supports for the technological module, made in in the form of slipway trucks, the rails of which are located perpendicular to the axis of the stand, sealing heads made in the form of plugs with flanges of certain diameters, having conical sealing surfaces of different diameters, mounted on platforms towards each other along the longitudinal axis of the stand with the possibility of their movement. In this case, the sealing heads are equipped with sealing O-rings, which are installed during testing on top of the module body against the stop of the flange end and with additional fixation with a sealant. The stand also includes screw stops for fixing the platforms on the end surfaces of the technological module, a device for removing the seal, means for monitoring the parameters and supplying the working fluid to the test cavity, a drainage system for draining possible leaks of the working fluid. Platforms are suspended on self-propelled trolleys with microelectric drives along the axis of the stand through screw transmissions, on which the guiding devices are mounted, equipped with microelectric drives of vertical and horizontal movements of the screw type, and on the supporting platforms of the guiding device on the rollers, opposite each other, there are lodgements, on which the stationary parts of the plugs are mounted, having flanges for installing, fixing and sealing the removable parts of the plugs, and flange connectors mounted on technological frames consist of flanges of the removable part of the plugs, split half rings and fasteners. At the same time, the seals between the outer cylindrical surfaces of the process module and the removable parts of the conical cavities of the plugs are made self-sealing with stuffing box packing around the perimeter.
EFFECT: ensuring the possibility of hydraulic pressure testing for strength not only from shear forces in the cross section, but also from normal stresses in the longitudinal section of large-sized TM cases.
7 cl, 9 dwg
