RU2424152C1 - Method of lifting objects from sea bottom in sea motions and device to this end - Google Patents

Abstract

FIELD: transport. ^ SUBSTANCE: invention relates to ship building, particularly, to method and device for lifting objected from sea bottom in conditions of sea motions. Proposed method comprises floating platform arranged above underwater object at maximum ballast load and connected with said object by lifting links. Links slack is taken up for them to be rigidly fixed on said platform. Ballast is removed from platform to change underwater object into suspended state by lifting it to height equal to difference between platform draft at full ballast load and that caused by object weight with ballast removed. Platform is moved together with object toward destination point in direction of sea depth reduction unless object touches bottom soil. Jobs are repeated unless object touches bottom soil at its final destination point. Complex comprises floating platform with compartments and liquid ballast loading unloading devices, lifting links, for lifting, immersing, tensioning and clamping said links. Platform is provided with speed, pitch and roll pickups and compressed gas controlled sources. Platform hull has at least one through vertical elongated opening oriented along platform midplane. Lifting devices made up of separate modules that move in horizontal guides are arranged relative to plane of symmetry of said openings. Said modules have vertical shaft arranged inside platform opening. ^ EFFECT: higher reliability and safety. ^ 4 cl, 7 dwg

Description

The invention relates to the field of shipbuilding and relates to the creation of a method and technical means for carrying out lifting operations with objects located at the bottom, including sunken submarines (PL), under sea conditions, and transporting these objects to a designated point.

There is a method and a set of technical means for lifting sunken offshore objects, which was first used to lift a sunken submarine. The method is based on the use of two types of forces. The buoyancy power of the platform is used to lift, lift and maintain the suspended object in suspension. The reaction force of the bottom soil, used as a support for a stationary object, is used to fix the position of the object, which is achieved after its rise to a certain limited height. The alternate transfer of the weight of the object to the floating base and to the bottom soil provides step-by-step movement of the object up and in the direction of decreasing depth (V. A. Molchanov, “Return from the Depth”, L., “Shipbuilding”, p.156).

In the known method for tearing and lifting an object above the ground using a floating platform with compartments and devices for loading and unloading ballast. Outboard water is used as ballast. Ballast loading is carried out through the platform’s kingstones, unloading is carried out by displacing water from tanks with compressed air or pumping out using pumps. The platform is equipped with flexible lifting links (chains, cables, etc.) and means of lifting, lowering and rigidly securing the connections on the platform (Figs. 1, 2, 3). Before lifting under the object, lifting slings are started so that they cover the entire cross section of the object, passing in the ground along the border of contact with the object. Further, when in a state of maximum ballast loading, the platform is located above the object, the slings are connected with lifting ties. After that, select the slack and rigidly fix the lifting link on the platform. Unloading the platform from the ballast, apply lifting force to the object and translate it into suspension, raising it to a height equal to the difference between the draft of the platform at full ballast load and the draft under the influence of the weight of the object, respectively, when the ballast is unloaded. After lifting and lifting, the object together with the platform is moved closer to the destination of the object in the direction of decreasing depth until it touches the object with bottom soil. Then the weight of the object is transferred to the ground, again transferring the platform in a state of maximum load with ballast. After receiving the ballast in a smaller place with a maximum draft of the platform, the lifting links become slack, which, if necessary, further movement is again chosen and then these operations are repeated until they touch the ground at the destination of the object (Figure 3).

The specified method and complex of technical means have a number of disadvantages, the main of which are as follows.

- The lifting and transporting processes in this case cannot be separated in principle.

- The progress of the lifting and transport operation, among other things, significantly depends on the profile of the seabed in the area covering the location of the operation and the destination of the object.

- The method involves the multiple laying of the object on the ground in various places in the water area, therefore, the parameters of technical equipment and technology as a whole are significantly affected by the properties of the bottom soil along the route of the object. This factor is fundamentally unremovable, therefore, the technical implementation of the method a priori involves the complication and cost of lifting operations by attracting additional technical equipment to neutralize it.

- The use of lifting hoisting slings for lifting increases the duration, risks and cost of performing the lifting operation also by attracting additional technical means. For example, to install lifting slings by pulling wire ropes-conductors (“trimming”), at least two towing vessels and a diving complex or inspection underwater vehicle are needed to control the position of the conductors relative to the body of the object. If “pruning” is not possible, for example, due to protruding parts on the object’s body immersed in the ground, or due to the inaccessibility of the object for divers, it is necessary to use deep-sea vehicles, means of conducting underwater excavation and tunneling, etc. The complexity and complexity of the establishment of slings significantly increase with increasing depth.

- Rigid fastening of the lifting links to the floating platform leads to the fact that the vibrational movements of the platform-object system during sea waves and the nonequilibrium process of separation of the object from the ground at the beginning of each lifting cycle lead to additional loads on the lifting links. In this case, the total stretching of the bonds can very significantly exceed the values corresponding to the static equilibrium of the object in a suspended state. The rigidity of the fastening can lead to overstrain of the bonds also at the stage of separation of the object from the ground. The "detachable weight" of an object can significantly exceed its own weight in water. It is known that at the first attempt to implement the method there was a break in lifting links.

- The long duration of the preparatory work and the lifting and transport operation as a whole increases the risk of the sea waves exceeding the strictly limited permissible limits. Safety in this case is possible only by interrupting the lift and taking the necessary safety measures, up to disconnecting the lifting complex from the lifting slings and moving the platform to a safe area.

- The effectiveness of the method decreases in proportion to the product of the depth of operation and the mass of the object. In particular, an increase in the mass of an object directly in direct proportion reduces the step of ascent in height. Accordingly, the total number of process steps increases, which in direct proportion increases the energy and time spent on ballast pumping, etc. An additional decrease in the efficiency of the method is due to an increase in the weight of the load-bearing system — lifting links and grippers, as the depth of the sea and the mass of the object increase. An increase in the weight of the load-bearing system also reduces the pitch.

- An increase in the number of intermediate layings of the object on the ground and / or their duration increases the risks of the hoisting-and-transport operation, by summing up the contributions to the overall risk, the risks associated with each laying, and / or as a result of an increase in the impulse of unbalanced forces in the process of overcoming the suction depends on the contact time of the object with the ground.

The objective of the invention is to ensure the safety of lifting underwater objects in sea waves, reducing time costs and increasing the efficiency of lifting operations, reducing labor costs and eliminating the need for technologies related to the direct interaction of lifting links with bottom soil, as well as expanding the range of permissible parameters of sea waves at carrying out a lifting operation.

To achieve the specified technical result in the known method of lifting in marine conditions of objects located on the bottom, in which they use a floating platform with compartments and devices for loading and unloading ballast and equipped with lifting means, including lifting links and devices for their functioning, which is in a state of maximum ballast loading is placed over the object and is connected with it using lifting links and, choosing the weakness of the links, rigidly fix them on the platform, and then, unloading the platform rmu from the ballast, translate the object into suspension, lifting it to a height equal to the difference between the draft of the platform at full ballast load and the draft under the influence of the weight of the object, but with the ballast completely unloaded, and move the platform together with the object closer to the destination of the object in the direction reducing the depth of the sea before touching the object with bottom soil, after which the platform is again transferred to the state of maximum ballast loading and the indicated operations and the entire specified cycle are repeated until the object is touched soil at the destination of the object, the connection of the lifting links with the object is carried out through durable elements of the power set of the body of the object, located mainly in its upper part, and the tension force of each lifting link at all stages of the movement of the object is adjusted and stabilized by pneumatic devices by the amount necessary for maintaining a stable equilibrium and spatial position of the object, regardless of the parameters of the waves of the water surface.

In a complex for carrying out under sea waves the lifting of objects located on the bottom, including a floating platform with compartments and devices for loading and unloading ballast, mainly liquid, lifting ties and lifting, lowering, tensioning and firmly fixing lifting ties, according to the invention, the platform is equipped sensors of speed, roll and trim and adjustable sources of compressed gas with a controlled shut-off valve and pneumohydraulic device, and at least one SLE is made in its body ozny vertical aperture of an elongated shape, oriented along the diametrical plane of the platform, with respect to the plane of symmetry of which the lifting devices are placed, which are made in the form of separate modules mounted on horizontal rails with the ability to move the modules along them, while the modules have a vertical shaft located inside aperture, the axis of which lies in the plane of symmetry of the aperture, while in the lower part of the shaft is installed a limiter of lateral displacements of the lifting connection and spacers of the device, and in the upper part there is a pneumatic cylinder with a piston having a rod, on the lower end of which there is fixed a clamp for lifting connection with a hydraulic clamp, mounted inside the shaft with the possibility of sliding, while in the shaft above the locking device for lifting communication and underneath are installed absorbers of impact energy of the clamp about the case of the absorber, and the pneumatic cylinder is equipped with a piston position sensor, and its cavities above and below the piston are communicated through controlled valves with the surrounding atmosphere and then through the shutoff valve - with a source of compressed gas, and the pneumohydraulic device is connected on one side with a hydraulic clamp of the clamp of the lifting connection, and on the other hand, through a valve controlled by signals from speed sensors, roll and trim, and through a controlled shut-off valve with a source of compressed gas, while lifting the connection of the modules has a gripping device at the lower end, and its upper end is passed through the lifting, lowering, tensioning and fixing device of the lifting connection with which the lifting modules are equipped.

In addition, the lifting modules are equipped with a unitary fuel tank, mainly with hydrazine. The tank is divided by a floating partition into two cavities, the upper of which is connected to a source of compressed gas, and the lower, through a dispenser controlled by the signals of the piston position sensor, communicates with the cavity of the pneumatic cylinder located under the piston. The piston is equipped with a safety valve that communicates the upper and lower cavity of the cylinder.

At the same time, to increase the reliability of the lifting complex and expand the permissible range of the amplitude of the platform’s oscillations during sea waves at the lifting complex, its lifting modules are supplemented by an intermediate flexible connection connected to the locking of the lifting connection, the other end of which is fixed to the housing of the lifting module, and the body of the intermediate flexible connection is supported by this on the rollers, which is equipped with a lifting module, and at least one roller through a cylindrical hinge rests on the piston rod of the pneumatic cylinder.

The advantages provided by the new complex are mainly as follows.

- Equipping the platform with sensors of speed, roll and trim allows you to optimally choose the moment of fixation of lifting links, when the angles of heel and trim have minimal values.

- The presence of through openings in the body and the modular construction of the lifting complex provide the possibility of the optimal location of the lifting modules along the length of the platform in accordance with the distribution of the weight load from the object, which minimizes the static component of the load acting on the lifting modules, communications and elements of the body of the object, etc. .

- Equipping the lifting modules with pneumatic devices allows you to minimize the dynamic component of the load on the lifting modules, communications and body elements of the object, etc.

- Equipping the pneumatic cylinders with piston position sensors allows you to optimally select the initial moment and intensity of tension increase when lifting links are activated when the object is separated from the ground during the transition of the object from the rest state to the suspended state in each lifting cycle.

- Equipping the lifting modules with shock energy absorbers reduces the risk of failure of the lifting links when the oscillations of the platform-object system suddenly go beyond the permissible range.

- The use of controlled sources of compressed gas allows you to configure the efforts of tension ties at all stages of the movement of the object in the process of lifting and transport operations, etc.

- Equipping the lifting module with a tank with a unitary fuel-energy carrier allows, by catalytic decomposition of the fuel, to create a pressure impulse in the lower cavity of the cylinder, in the event of a threat of collision of the piston with the bottom wall of the pneumatic cylinder.

- Communication of the upper cavity of the tank with a source of compressed gas allows you to create in the tank the pressure necessary for the dispenser and fuel injection into the lower cavity of the cylinder.

- Equipping the pneumatic cylinder with a piston displacement sensor provides the necessary data for the timely operation of the piston of the piston safety valve.

- Installation of a safety valve on the piston allows to prevent minimization of the impulse of the pressure aftereffect of the decomposition products of the fuel and the lifting link jerk during the reverse stroke of the piston from its lowermost position after the compensation pressure pulse is triggered.

- Equipping the lifting module with an intermediate flexible link and rollers can significantly increase the stroke of the lifting link lock with the same stroke of the piston rod. This allows you to significantly increase the amplitude of the permissible vertical displacements of the platform during rolling, and thereby expand the range of parameters and the time interval for the safe handling and handling operations. If necessary, an additional increase in the safe stroke of the latch can be achieved by increasing the number of rollers on the movable supports in the lifting module. When using one movable roller and, accordingly, one pneumatic cylinder, the working stroke of the clamp can be increased by 2 times, with two movable rollers - 4, with three - by 8 times, etc. When using such a mechanism, it is critical, from the point of view of the conditions of the lifting operation, not sea waves, but other factors, such as wind speed and other meteorological conditions in the water area.

The invention is illustrated by drawings, where Fig.4 shows a General view of the complex for implementing the method of lifting in conditions of sea waves of objects located on the bottom of the sea, Fig.5 is a General view of the complex (Fig.4), equipped with a tank with unitary fuel, Fig.6 is a General view of the complex (Fig.4, 5) with an intermediate flexible connection, and Fig.7 is a lifting diagram according to the invention.

The complex for the implementation of sea waves lifting objects located on the bottom (Figure 4), consists of a floating platform 1 with compartments and devices for loading and unloading ballast 2, lifting links 3 and a device for lifting, lowering, tensioning and strong fixation of lifting ties 4. The platform 1 is equipped with sensors of speed, roll and trim 5 and adjustable sources of compressed gas 6 with controlled shut-off valves 7. The supply and regulation of pressure in the sources 6 can be carried out in various ways, for example using compressor station located on the platform, or using tanks with compressed gas (not shown in the drawing).

At least one through vertical aperture 8 is made in the platform casing. With respect to the symmetry plane of the aperture, lifting modules 9 are placed, which are mounted to move on horizontal guides 10. The modules have a vertical shaft 11 in their casing, in the lower part of which there is a lateral limiter displacements of the lifting link 12 and spacers 13 (for fixing the position of the modules inside the opening 8). In the upper part of the shaft there is a pneumatic cylinder 14 with a piston 15 having a rod 16. At the lower end of the shaft is fixed a clamp for lifting connection 17 with a hydraulic clamp 18. The lock 17 is mounted inside the shaft 11 with the possibility of sliding. The pneumatic cylinder is also equipped with a piston position sensor 19. Shock energy absorbers 20 and 21 are installed above and below the lifting link in the shaft, and the cavities of the pneumatic cylinder above and below the piston are communicated via shut-off valve 7 of the compressed gas source and controlled valves 22 and 23 with a compressed source gas 6. The device valves 22 and 23 allows you to communicate the corresponding cavity with the surrounding atmosphere. Parallel to the valves 22 and 23, the source of compressed gas 6 through the shut-off valve 7, the pipeline and valve 24 (controlled by the signals of the sensors 5) is connected to a pneumohydraulic device 25 mounted on the housing of the lifting module, which, on the other hand, is connected to the hydraulic clamp of the lifting coupling lock 18 A gripping device 26 is fixed at the lower end of the connection 3 of the lifting modules, while the upper end of the lifting connection is passed through the lifting, lowering, tensioning and fixing device 4.

In addition, in the indicated complex (see Figure 5), the lifting modules are equipped with a unitary fuel tank (for example, hydrazine) 27. The tank is divided by a floating partition 28 into two cavities, the upper of which is connected to the compressed gas source 6, and the lower is communicated through a dispenser 29 with a cavity of the pneumatic cylinder 14 located under the piston 15. The position sensor 19 of the piston 15 is connected to the dispenser 29. The piston 15 is equipped with an automatic safety valve 30 through which the lower cavity of the pneumatic cylinder can communicate with its top cavity (and through valve 22 - with the surrounding atmosphere).

In addition, the lifting complex (Fig. 6) is equipped with an intermediate flexible link 31, to one end of which a latch link 17 is attached, and the other end is fixed to the housing 9 of the lifting module 9. The intermediate link 31 is passed through the rollers 32. The axis, at least , one roller through a cylindrical hinge 33 is supported on the rod 16 of the piston 15 of the pneumatic cylinder 14.

In the proposed method, when lifting an underwater object, the stages of establishing the lifting slings and connecting them with the lifting links 3 (Figure 4) are combined in one stage (Figure 7) of the installation of attachable grippers on the structures of the object, which transmit the lifting force through the lifting links 3 and the pneumatic devices on the platform body. Each lifting cycle is carried out in three operations (Fig.7): separation of the object from the ground - A; moving the object in the direction of the destination until it touches the ground - B; the weakening of the tension of the bonds at the point of contact of the object with the ground to a value that ensures the normal functioning of the mechanisms of fixation and selection of the weakness of the lifting links - B. The cycle (A-B-C) is repeated until the object touches the ground at the destination.

The functioning of the lifting complex is as follows (see Figure 4).

Based on the calculation of the forces providing static balance, and taking into account the permissible loads on the strong elements of the object’s body, to which the lifting forces will be applied, the pressure in the cavities of the pneumatic cylinders and the position of the lifting modules along the symmetry plane of the openings 8 in the platform body 1 are determined.

Moving the lifting modules 9 along the guides 10, the modules are installed on the platform and fixed in place using spacers 13.

Taking into account the weight of the object, the displacement of the platform, the predicted amplitude of the oscillations of the platform and other significant factors, shock absorbers 20 and 21 are set in the required position.

Deliver the platform to the place of operation.

Using ballasting devices 2, the platform is brought into a state of maximum draft and placed above the object.

Create the necessary pressure in the sources of compressed gas 6.

When the hydraulic clamps 18 are opened, the lifting links 3 are lowered with the gripping devices 26 and fixed to the strong elements of the object body (which were assigned in advance at the stage of engineering preparation of the operation).

The shut-off valve 7 and the valves 22 and 23 are opened and the upper and lower cavities of the cylinder 14 are filled with compressed gas. The compressed gas can freely move between the cavities. The valve 24 on the pipeline supplying gas to the pneumohydraulic device 25 is closed.

The slack of the lifting links is selected using the lifting, lowering, pulling and fixing device 4 and maintain this state (for example, using the counterweight included with the device 4 (not shown in FIG. 4)).

According to the readings of the sensors 5, we select the point in time when the heel and trim angles of the platform have a minimum value, and, at the same time, open the valve 24 on all the lifting modules, actuate the pneumohydraulic device 25 and the hydraulic clamps 21 of the clamp of the lifting links 17, using the valve 22 disconnect the cylinder cavities above and below the piston and discharge part of the gas from the upper cavity of the cylinder into the atmosphere, reducing the gas pressure in the upper cavity of the cylinder to a value that ensures tension of the lifting links (excess pressure in the lower cavity). In this case, the tension of the bonds is created, sufficient only to overcome the friction forces between the cylinder and the piston with the rod and maintain the bonds in tension when rolling the platform. The inclusion of rods and pistons of the lifting modules leads to a change in the vibration parameters of the platform.

Based on the observations of the platform motion parameters (roll, trim and speed), the moment of completion of the platform transition to the new oscillation mode is determined. At the time of the optimal combination of the roll and trim angles, as well as the direction and magnitude of the vertical speed of the platform, on all lifting modules, the valve 22 is set to a position that provides a gradual pressure release from the upper cavity of the cylinders 14. At the same time, using the devices 2, the ballast is unloaded from the platform compartments . The pressure is released from the upper cavities of the pneumatic cylinders until the pressure in the lower cavity of the cylinders of all the lifting modules creates a bond tension corresponding to the equilibrium conditions of the object in suspension.

If, after de-ballasting is completed, the object does not detach from the soil for a period of time acceptable under the conditions of the operation, then in order to overcome the separation forces, the pressure in the compressed gas sources 6 of all lifting modules (simultaneously or according to a previously adopted algorithm) increases by a certain amount. An increase in pressure is performed in steps with holding at each step for some time.

At the beginning of the separation, as the object transitions from the rest state to the suspended state, to reduce the tension of the lifting links, the valves 22 are installed in a position that ensures the discharge of compressed gas from the lower cavity of the cylinders to the upper. Thus, the tension of the lifting links is adjusted to the calculated one, corresponding to the static equilibrium of the object in a suspended state. If, during detachment, due to fluctuations in the platform-object system, the object comes into contact with the ground again and the force required to put the object into suspension again increases, valve 22 is again placed in a state that allows gas to be discharged into the atmosphere from upper cavity, thereby lowering the pressure in the upper cavity of the cylinder and increasing the tension of the lifting links. With all these actions, the lower cavity is constantly in communication with the source 6 of compressed gas, which minimizes the dynamic component of the tension of the lifting links.

After the completion of the separation of the object from the ground and the release of the platform from the ballast, the platform-object system acquires the minimum possible draft and, in this state, is transported in the direction of decreasing depth, which should coincide as much as possible with the direction to the destination of the object.

After touching the object with the soil in a smaller place using devices 2, the platform is again loaded with ballast. At the same time, the shut-off valve 7 is closed, the lower cylinder cavity is informed through the valve 23 with the atmosphere, and after the pressure in the lower and upper cylinder cavities is equalized, the valve 22 is opened and the gas pressure in both cylinder cavities is released on all lifting modules.

The hydraulic clamps 18 of all the lifting modules are opened and the mechanisms 4 are actuated to maintain the tension of the lifting links without slack.

After complete unloading of the lifting links, the platform is ballasted.

At the maximum draft of the platform using the device 25, close the hydraulic clamps 18 and repeat all the steps following that described above.

The differences in the parameters of operations in the next cycle are mainly associated with changes in sea waves and the conditions of interaction of the object with the ground.

The lifting complex according to claim 3 of the claims operates according to the algorithm described above, but has the following differences.

At the time of opening the shut-off valve 7 (see Figure 5), compressed gas enters the upper cavity of the tank with unitary fuel 27. In this case, the fuel located in the lower cavity of the tank and the pipe ending in the dispenser 29 is at a pressure equal to the pressure in the lower cavity pneumatic cylinder on each lifting module.

In the event of a dangerous approach of the piston to the bottom wall of the pneumatic cylinder, the signal 29 (for example, using a hydraulic booster that can be included in the metering device) injects fuel into the cylinder cavity under the piston by a signal from the piston position sensor 19. Rapid exothermic decomposition of the fuel leads to the emergence of an additional pressure impulse that prevents the piston from moving down. When a sensitive element of the safety valve (not shown) collides with the lower wall of the cylinder, the safety valve opens and at the moment of maximum pressure under the piston, pressure is released from the lower cavity of the cylinder to the upper. Where does he leave through the valve 22 into the atmosphere.

If the compensating effect of the pressure pulse of the decomposition products of the fuel turned out to be excessive and the valve 30 does not operate, the safety valve is triggered by the signal of the sensor 19 at the time the piston changes sign, which corresponds to the upward movement of the piston. The discharge of decomposition products into the upper cavity of the pneumatic cylinder leads to a rapid decrease in the tension of the lifting link. Bringing the value of the bond tension to the calculated value occurs using the valve 22 in the same way as it happens at the stage of separation of the object from the ground (see above).

If the compensating effect of the pressure pulse of the decomposition products of the fuel was insufficient and, accordingly, the braking of the piston was incomplete, the residual impact energy is absorbed by the impact energy absorber 21 (see Figure 4). At the same time, when the sensitive element of the safety valve 32 touches the bottom wall of the pneumatic cylinder, pressure is released from the lower cavity of the cylinder and the pressure in it returns to the calculated one using valve 22 (see above).

The lifting complex according to claim 4 of the claims (see Figure 6) functions in the same way as the complexes according to claim 2 or 3 of the claims. The difference in the functioning of the complex according to claim 4 is that the rod 16 of the pneumatic cylinder 14 interacts with the clamp of the lifting link 17 not directly, but through an intermediate flexible link 31, passed through a system of rollers 32 fixed to the housing of the lifting module 32. At the same time, at least at least one of the rollers through a cylindrical hinge 33 is supported on the rod 16 of the piston 15.

A feature of the functioning of the complex according to claim 4 is that with the same amplitude of movement of the piston 15, the allowable movement of the clamp of the lifting link 17 can be increased at least two times compared with the version of the lifting module according to claim 2 .

By increasing the number of movable rollers and, accordingly, pneumatic cylinders to 2, 3, etc., it is possible to increase the permissible displacements of the clamps of the lifting links and the permissible vibration amplitude of the platform, respectively, 4, 6, etc. time. This allows you to significantly reduce the volume of the cylinders 14 relative to the volume of the source of compressed gas 6 and thereby increase the degree of amortization of the dynamic loads on the lifting link.

Claims (4)

1. The method of lifting in conditions of sea waves of objects located on the bottom, which use a floating platform with compartments and devices for loading and unloading ballast, equipped with lifting means, including lifting links and devices for their functioning, which are in a state of maximum load with ballast placed over they are connected to it by the object and with the help of lifting links, and, choosing the weakness of the links, they are rigidly fixed on the platform, and then, unloading the platform from the ballast, they transfer the object into a balanced state lifting it to a height equal to the difference between the draft of the platform at full ballast load and the draft under the influence of the weight of the object, but when the ballast is completely unloaded, and move the platform together with the object closer to the destination of the object in the direction of reducing the depth of the sea until the object touches the bottom soil, after which the platform is again transferred to the state of maximum ballast load and the indicated operations and the entire specified cycle are repeated until the object touches the ground with the object at the destination of the object, different that the connection of the lifting links to the object is carried out through strong elements of the power set of the body of the object, located mainly in its upper part, and the tension force of each lifting link at all stages of the movement of the object is adjusted and stabilized by pneumatic devices by the amount necessary to maintain stable equilibrium and spatial position of the object, regardless of the parameters of the waves of the water surface. 2. A complex for carrying out under sea waves the lifting of objects located at the bottom, including a floating platform with compartments and devices for loading and unloading ballast, mainly liquid, lifting links and devices for lifting, lowering, tensioning and firmly fixing the lifting links, characterized in that the platform is equipped with sensors of speed, roll and trim, adjustable sources of compressed gas with a controlled shut-off valve, and a pneumohydraulic device, and at least one is made in its body a through vertical opening of an elongated shape, oriented along the diametrical plane of the platform, with respect to the plane of symmetry of which lifting devices are located, which are made in the form of separate modules mounted on horizontal rails with the ability to move the modules along them, while the modules have a vertical shaft located inside aperture, the axis of which lies in the plane of symmetry of the aperture, while in the lower part of the shaft is installed a limiter of lateral displacements of the lifting connection and spacers the device, and in the upper part there is a pneumatic cylinder with a piston having a rod, at the lower end of which there is fixed a clamp for lifting communication with a hydraulic clamp, mounted inside the shaft with the possibility of sliding, while in the shaft above the locking of the lifting connection and under it there are absorbers of impact energy of the clamp about the absorber body, and the pneumatic cylinder is equipped with a piston position sensor, and its cavities above and below the piston are communicated through controlled valves with the surrounding atmosphere and then through a shut-off valve but with a source of compressed gas, the pneumohydraulic device being connected on one side to the hydraulic clamp of the lifting clamp, and on the other, through a valve controlled by signals from speed sensors, roll and trim and through a controlled shut-off valve, to a source of compressed gas, while lifting connection The module has a gripping device at the lower end, and its upper end is passed through the lifting, lowering, tensioning and fixing device of the lifting connection with which the lifting modules are equipped. 3. The complex for lifting under sea conditions the lifting of objects located at the bottom according to claim 2, characterized in that the lifting modules are equipped with a unitary fuel tank, mainly hydrazine, while the tank is divided by a floating partition into two cavities, the upper of which is connected with a source of compressed gas, and the bottom through the dispenser, controlled by the signals of the piston position sensor, communicated with the cavity of the pneumatic cylinder located under the piston, and the piston is equipped with a safety valve, together conductive upper and lower cavity of the cylinder. 4. A complex for carrying out under sea waves the lifting of objects located at the bottom according to claim 2 or 3, characterized in that the lifting modules are supplemented by an intermediate flexible connection connected to a lifting connection lock, the other end of which is fixed to the housing of the lifting module, and the body of the intermediate flexible connection in this case relies on the rollers with which the lifting module is equipped, and at least one roller leans through the cylindrical hinge on the piston rod of the pneumatic cylinder.

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