Patent EA-002445-B1 (EA)
Title: Thermoinsulated pipe manufacturing device and procedure therefor
IPC: F16L59/14
Filed: 1999-03-24
Abstract: 1. Method for production of thermally insulated pipe includes the following: the conduit pipe (44) for various fluids, with or without additional installations (32) and elastic installations (36), by means of the cart (34) is pushed into the jacket pipe (45) along the horizontal bolster via the cart lead bar (37) on whose ends the lower tool (42) and the upper tool (48) are placed by means of the acceptance cart (40) and the hydraulic platform (38), and together into the holder (12); after placing the boom (6) with the external guide (7), it is lifted by rope (14) into the vertical position, determined by the internal guide (8); then, the conduit (44) is aligned with the jacket pipe (45) via the internal guide lock (4) while the mixer (26) is pushed into the insulation space (18) into the lower tool (42); at the same time, the injected insulation material (19) it is lifted vertically, stopping at distance above the expanding insulating material (19) until all the calculated amount of insulation material (19) has been injected; the mixer (26) is then taken out through the upper tool (48), closed by the cover (29) and fixed by the fixing device (30); the existing excess of the injected insulating material (19) escapes through a hole in the cover (29), which completes the procedure. 2. Device for production thermally insulated pipe when the conduit pipe (1) and the jacket pipe (5) are strong enough for maintaining vertical position, includes the following: the tower (17) is constructed as a vertical space grid, that is used as the basic holder and support for the rest of the equipment; on it, there is an electric winch (15) with tie rods (16) made of steel ropes, internal guide (8), built vertically into the middle of the front vertical side of the tower (17) which accepts the previously prepared conduit pipe (1) with the additional heating or cooling additional installations (32) made of steel pipes; the additional installations (32) are fixed by holders to the conduit pipe (1) the cart (34), of four wheels and oscillating axle in-between, the conduit pipe leaning on them and across the limiter (33) in form of an L profile with a hole, it is fixed to the cart (34) by the screw (35) and then horizontally pushed into jacket pipe (5), via the cart lead bar (37) in form of a wedge having width, larger than the cart's width; it is, now, lifted together by hydraulic platform (38) of one hydraulic cylinder with front supporting on the basic steel plate topped by a groove support (39) in form of a pipe segment, the acceptance cart (40) with three wheels as supports, two-pipe pillar and horizontal arbor, with the lower tool (10) and the upper tool (11) previously put on its ends, accepts the conduit (1) and the lower tool (10) consisting of two steel rings of diameters larger than the conduit (1) and the jacket pipe (5) diameters and a circular plate with central opening larger than the conduit pipe (1) diameter and with two side pins on the circular plate for supporting in the holder (12); on one side of the lower tool (10) there are two plates with a cut as the external guide support (9) where the external guide (7) is leaning on, and a pin on its end as a lower support (21), with boom (6) of a flat or space grid construction and the upper support of the boom (22) as a short pipe with its walls towards the external guide wedge (23) passing through the external guide lock (3) in shape of a short pipe with the inside walls in both cases constructed as an assembly with air gaps; the upper tool (11) also consists of two rings with inside diameters larger than the conduit (1) and the jacket pipe diameters and a circular plate with a central opening larger than the outside diameter of the conduit (1) bearing the built-in external guide lock (3) and the internal guide lock (4) which determine the overlapping of the conduit (1) and the jacket pipe (5) axles, while the two-part cover (29) as a semi-segment of the circular ring reinforced along its edges to lean in the upper tool (11) ends the process of injecting the insulation material (19) under pressure, for it is firmly fixed by the fixing device (30) in the shape of an inclined wedge, and when the additional flexible installations (36) such as cables regularly built-in in the insulation material (19) itself, the flexible installations holder (31) in the shape of a circular tapered two-part wedge with self-locking cone angle; all of these enable the two-component insulating material (19) mixer (26), constructed with a circular chamber and a tapered contraction followed by an enlargement of the passage leading to the outlet pipe, to do the mixing by the components jets collision and by letting in additional air, above the expanding surface of the insulating layer. 3. Device for production thermally insulated pipe when the conduit pipe (1) and the jacket pipe (45) are not strong enough for maintaining vertical position, includes the following: the tower (17) is constructed as a vertical space grid, that is used as the basic holder and support for the rest of the equipment; on it, there is an electric winch (15) with tie rods (16) made of steel ropes, internal guide (8), build vertically into middle of the front vertical side of the tower (17) which accepts the previously prepared conduit pipe (44) with the additional heating or cooling installations (32) made of steel pipes; the additional installations (32) are fixed by holders to the conduit pipe (44), the cart (34), of four wheels and oscillation axle in-between the conduit pipe leaning on them and across limiter (33) in form of a profile with a hole it is fixed to the cart (34) by the screw (35) and then horizontally pushed into jacket pipe (45) via the cart lead bar (37) in form of a wedge heaving width larger than the cart's width; it is, now, lifted together by hydraulic platform (38) of one hydraulic cylinder with front supporting on the basic plate topped by a groove support (39) in form of a pipe segment longer than the height; the acceptance cart (40) with three wheels as supports two - pipe pillar and horizontal arbor with the bottom tool (43) and the top tool (48) previously put on its ends, bottom (42) of the flexible conduit pipe (44) in the shape of a circular plate with a circular ring whose outside diameter is equal to the inside diameter of the conduit pipe (44); in the central hole of the plate, a valve is placed for blowing-in the air; the bottom tool (42) of the flexible jacket pipe (45) is a plate with a central opening which is larger than the diameter of the flexible conduit pipe (44) and a ring with the outside diameter which is smaller than the inside diameter of the flexible jacket pipe (45) and with the external guide support (46) along the plate edge outside the ring for the flexible jacket pipe (46) as two plates with two tapered openings and a cut for the bottom support (21) pin to pass, the top tool (48) of the flexible jacket pipe (45) has three additional steel plate to support the top tool (47) of the flexible conduit (44) above the top tool (48) of the flexible jacket pipe (45) which has the support (49) on the top tool (48) of the flexible jacket pipe (49) like two plates with a cut and two centrical openings for the tight connection of the boom (6), and the hydraulic bottom tool support (51) which consists of a hydraulic crane with a wedge topped by a plate with semi-circular cut to accept the bottom tool (42) of the flexible jacket pipe which enables, when lowered, the whole assembly to lean on the support (25) on the tower and the flexible conduits (44) and jacket (45) pipes are tightened by gravitation, top tool (48) of the flexible jacket pipe (45) has a plate with a centering ring bearing the built-in the external guide lock (3) and the internal guide lock (4) while the two-part cover (29) as a semi-segment of the circular ring reinforced along its edges to lean in the top tool (48) ends the process of injecting the insulating material (19) under pressure, for it is firmly fixed by the fixing device (30) in the shape of an inclined wedge, and when the elastic installations (36) such as cables regularly built-in in the insulating material (19) itself, the elastic installations holder (31) in the shape of a circular tapered two-part wedge with self-locking cone angle; all of these enable the two-component insulating material (19) mixer (26), constructed with a circular chamber and a tapered contraction followed by an enlargement of the passage leading to the outlet pipe, to do the mixing by the components jats collision and by letting in additional air, on the height above the expanding surface of the insulating layer.