A release device for a spear array

Abstract

The utility model discloses a releasing device for a long gun array, comprising: a supporting frame, a telescopic device, a first lifting chain, a second lifting chain, a first retractable winch, a second retractable winch, a slide rail, a third lifting chain and a gun cable winch; the supporting frame is arranged at the stern of a hull and has an opening facing the stern; the telescopic device is arranged at the top of the supporting frame, the first lifting chain and the second lifting chain are arranged on the telescopic device, and the telescopic device can drive the first lifting chain and the second lifting chain to extend and retract from the opening; the first lifting chain and the second lifting chain are respectively detachably connected to the first lifting device and the second lifting device of the long air gun source array, the first lifting chain is retracted and released by the first retractable winch, and the second lifting chain is retracted and released by the second retractable winch; the slide rail is arranged on the supporting frame along the telescopic direction of the telescopic device, the third lifting chain is multiple, the multiple third lifting chains slide along the slide rail, and the third lifting chain is detachably connected to the corresponding third lifting ring on the long air gun source array; the gun cable winch is arranged on the side of the supporting frame close to the bow direction, the gun cable winch is wound with a gun cable, and the gun cable is connected to the long air gun source array. The utility model retracts and releases a long air gun source array after the telescopic device is extended, which solves the technical problem that the existing retracting and releasing device is easy to damage the air gun source array structure and the cable.

Description

Technical Field

[0001] The utility model relates to the technical field of marine seismic exploration, in particular to a release device for a long gun array. Background Art

[0002] Marine seismic exploration is usually carried out by artificially exciting seismic waves, and several acquisition cables equipped with detectors towed behind the survey ship receive the reflected waves from the formation. Survey ships are mostly used for engineering surveys and medium-shallow seismic exploration and development. Conventional survey ships are usually equipped with a source system, seismic data acquisition system, cable control system, navigation system, etc. The air gun array retractable device is used to retract and extend the air gun source array of the source system, and is an important part of the survey ship.

[0003] At present, the air gun source array retracting and releasing device of the survey ship adopts the method of fixed slide. A fixed slide is installed on the survey ship, and many rollers are installed on the fixed slide. There are lifting chains under the rollers connected to the lifting equipment of the air gun source array. When the air gun source array is retracted and released, the air gun source array slides into the water and is recovered from the water from the ramp slide at the stern. During the release process, one end of the air gun source array is inserted into the water and the other end is tilted, and the middle part of the air gun source array is against the ramp slide. For the long air gun source array, it will be impacted by the buoyancy of the water and the supporting force of the ramp slide at the moment of entering and exiting the water, and will produce severe friction with the ramp slide during the entry into the water. Therefore, the existing retracting and releasing device has the problem of easily damaging the structure and cables of the air gun source array. Utility Model Content

[0004] The utility model provides a releasing device for a long gun array, so as to solve the technical problem that the existing retracting and releasing device is easy to damage the air gun source array structure and the cable.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] A release device for a long gun array comprises: a support frame, a telescopic device, a first lifting chain, a second lifting chain, a first retractable winch, a second retractable winch, a slide rail, a third lifting chain and a gun cable winch; the support frame is arranged at the stern of the hull and has an opening facing the stern; the telescopic device is arranged at the top of the support frame, the first lifting chain and the second lifting chain are arranged on the telescopic device, and the telescopic device can drive the first lifting chain and the second lifting chain to extend and retract from the opening; the first lifting chain and the second lifting chain are respectively detachably connected to the first lifting ring and the second lifting ring of the long air gun source array sling, the first lifting chain is retracted and released by the first retractable winch, and the second lifting chain is retracted and released by the second retractable winch; the slide rail is arranged on the support frame along the telescopic direction of the telescopic device, there are a plurality of third lifting chains, the plurality of third lifting chains slide along the slide rail, and the third lifting chain is detachably connected to the corresponding third lifting ring on the long air gun source array; the gun cable winch is arranged on the side of the support frame close to the bow direction, the gun cable winch is wound with a gun cable, and the gun cable is connected to the long air gun source array.

[0007] Furthermore, the telescopic device adopts a multi-stage telescopic cylinder, the first lifting chain is installed on the first stage of the multi-stage telescopic cylinder, and the second lifting chain is installed on the second stage of the multi-stage telescopic cylinder.

[0008] Furthermore, the release device also includes a buffer auxiliary component, which includes: a first airbag, a second airbag and an inflation device; the first airbag and the second airbag are respectively fixed at two ends of the bottom of the long air gun source array.

[0009] Furthermore, the inflation device includes an air compressor, an input pipeline, a gas cylinder and an output pipeline connected in sequence; the output pipeline is divided into a first air supply pipeline and a second air supply pipeline, the first air supply pipeline is connected to the first airbag, the second air supply pipeline is connected to the second airbag, and the first stop valve and the second stop valve are respectively arranged on the first air supply pipeline and the second air supply pipeline.

[0010] Furthermore, the slide rail adopts an I-beam hanging rail and a pulley, and the top end of the third hanging chain is fixed on the pulley.

[0011] Furthermore, there are two slide rails, which are located on both sides of the telescopic device.

[0012] Beneficial effects:

[0013] The present application discloses a release device for a long air gun array, which respectively controls the lifting and lowering of the two ends of the long air gun source array by setting a first lifting chain, a second lifting chain, a first retracting winch and a second retracting winch, and also realizes the extension and retraction of the long air gun source array into the support frame by setting a telescopic device to drive the first lifting chain and the second lifting chain to extend and retract from the opening of the support frame; by first extending the long air gun source array and then lowering it, the angle at which the long air gun source array enters the water is reduced, thereby reducing the impact of the buoyancy of the water and the supporting force of the slope slide on the long air gun source array; extending the long air gun source array and then lowering it also shortens the action length of the long air gun source array and the slope slide, and the pulling force of the first lifting chain and the second lifting chain further reduces the friction between the long air gun source array and the slope slide; therefore, the release device can solve the technical problem that the existing retracting and releasing device is easy to damage the air gun source array structure and the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1It is a schematic structural diagram of a release device for a long gun array disclosed in the utility model in a state of storing a long air gun source array;

[0016] Figure 2 It is a side view of a release device for a long gun array disclosed in the utility model in a state of storing a long air gun source array;

[0017] Figure 3 for Figure 2 A partial enlarged view of middle A;

[0018] Figure 4 It is a schematic diagram of a buffer auxiliary component of a release device for a long gun array disclosed in the utility model;

[0019] Figure 5 It is a structural schematic diagram of a release device for a long gun array disclosed in the utility model in a state of releasing a long air gun source array;

[0020] Figure 6 It is a schematic structural diagram of a release device for a long gun array disclosed in the utility model in a state where the long air gun source array is in water;

[0021] Figure 7 The utility model discloses a structural schematic diagram of a release device for a long gun array in a state of recovering a long air gun source array.

[0022] 1. Support frame; 2. Telescopic device; 21. First ear plate; 22. First U-shaped shackle; 23. First pulley; 24. First bow-shaped shackle;

[0023] 31. First lifting chain; 32. Second lifting chain; 33. First retractable winch; 34. Second retractable winch;

[0024] 4. Slide rail; 5. Third lifting chain; 6. Cable winch;

[0025] 7. Long air gun source array; 71. First hanging ring; 72. Second hanging ring;

[0026] 81. First air bag; 82. Second air bag; 83. Air compressor; 84. Input pipeline; 841. Check valve; 842. Marine pressure gauge; 843. Safety valve; 844. Pressure switch; 845. Gas-water separator; 85. Gas cylinder; 86. Output pipeline; 861. Pressure reducing valve group; 862. Water separation filter; 863. Third stop valve; 87. First air supply pipeline; 88. Second air supply pipeline; 891. First stop valve; 892. Second stop valve; 893. First exhaust pipe; 894. First exhaust valve; 895. Second exhaust pipe; 896. Second exhaust valve;

[0027] 9. Hull. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] A release device for a spear array, combined with Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes: a support frame 1, a telescopic device 2, a first lifting chain 31, a second lifting chain 32, a first retracting and releasing winch 33, a second retracting and releasing winch 34, a slide rail 4, a third lifting chain 5 and a gun cable winch 6; the support frame 1 is arranged at the stern of the hull 9 and has an opening facing the stern; the telescopic device 2 is arranged on the top of the support frame 1, the first lifting chain 31 and the second lifting chain 32 are arranged on the telescopic device 2, and the telescopic device 2 can drive the first lifting chain 31 and the second lifting chain 32 to extend and retract from the opening; the first lifting chain 31 and the second lifting chain 32 are respectively detachable and connected The first lifting ring 71 and the second lifting ring 72 of the lifting device of the long air gun source array 7 are connected, the first lifting chain 31 is retracted and released by the first retracting winch 33, and the second lifting chain 32 is retracted and released by the second retracting winch 34; the slide rail 4 is arranged on the support frame 1 along the extension direction of the telescopic device 2, and there are multiple third lifting chains 5, and the multiple third lifting chains 5 slide along the slide rail 4, and the third lifting chains 5 are detachably connected to the corresponding third lifting rings on the long air gun source array 7; the gun cable winch 6 is arranged on the side of the support frame 1 close to the bow direction, and the gun cable is wound around the gun cable winch 6, and the gun cable is connected to the long air gun source array 7. After the telescopic device 2 extends out of the support frame 1, the long air gun source array 7 is released, which increases the distance between the rear end of the long air gun source array 7 (the end away from the bow) and the ramp slideway at the stern of the hull 9, reduces the water entry angle of the long air gun source array 7, and avoids the rear end of the long air gun source array 7 sliding down the ramp slideway at the stern of the hull 9 when released and directly inserting into the water; therefore, it can reduce the impact of the buoyancy of the water on the long air gun source array 7 when entering the water, as well as the impact caused by the interaction between the middle and front ends of the long air gun source array 7 and the ramp slideway due to entering the water. In summary, the release device solves the technical problem that the existing retractable device is easy to damage the air gun source array structure and cables during the release process.

[0030] Specifically, the support frame 1 adopts a frame structure, which includes multiple portal frames and multiple longitudinal beams connecting the multiple portal frames. The portal frames can be detachably fixed to the stern deck of the hull 9 by bolts, and the longitudinal beams can be detachably fixed to the top of the portal frames by bolts.

[0031] Preferably, the telescopic device 2 adopts a multi-stage telescopic cylinder, the first hoisting chain 31 is installed on the first stage of the multi-stage telescopic cylinder, and the second hoisting chain 32 is installed on the second stage of the multi-stage telescopic cylinder. In this embodiment, the multi-stage telescopic cylinder adopts a three-stage telescopic hydraulic cylinder. The cylinder body of the three-stage telescopic hydraulic cylinder is fixed to the support frame 1 by bolts, and the piston rod of the three-stage telescopic hydraulic cylinder faces the stern of the hull 9. The direction from the stern of the hull 9 to the bow is the first stage, the second stage, the third stage and the cylinder body in sequence. The first hoisting chain 31 and the second hoisting chain 32 are respectively installed on two stages, which can change the distance between the first hoisting chain 31 and the second hoisting chain 32, and then the first hoisting chain 31 and the second hoisting chain 32 are corresponding to the first hoisting ring 71 and the second hoisting ring 72 of the long air gun source array 7 by extending the first stage relative to the second stage, which can shorten the length of the multi-stage telescopic cylinder in the non-working state.

[0032] Specifically, a first ear plate 21 is welded and fixed on the first stage of the three-stage telescopic hydraulic cylinder, a through hole is opened on the first ear plate 21, the first ear plate 21 is connected to the first U-shaped shackle 22, the first U-shaped shackle 22 is connected to the first pulley 23, one end of the first lifting chain 31 is wound around the first retractable winch 33, the other end is connected to the first bow-shaped shackle 24 after bypassing the first pulley 23, and the first bow-shaped shackle 24 is used to hook the first lifting ring 71. A second ear plate is welded and fixed on the second stage of the three-stage telescopic hydraulic cylinder, the second ear plate is connected to the second U-shaped shackle, the second U-shaped shackle is connected to the second pulley, one end of the second lifting chain 32 is wound around the second retractable winch 34, the other end is connected to the second bow-shaped shackle after bypassing the second pulley, and the first bow-shaped shackle 24 is used to hook the second lifting ring 72.

[0033] Preferably, the release device further includes a buffer auxiliary component, which includes: a first airbag 81, a second airbag 82 and an inflating device; the first airbag 81 and the second airbag 82 are respectively fixed at the two ends of the bottom of the long air gun source array 7. In this embodiment, the first airbag 81 is located at the end away from the bow, and the second airbag 82 is located at the end facing the bow; the cross-sectional shape of the first airbag 81 and the second airbag 82 after being inflated is a crescent shape, so as to better protect and support the long air gun source array 7. When releasing the long air gun source array 7, by controlling the inflation and deflation of the first airbag 81 and the second airbag 82, the long air gun source array 7 can float on the water surface, reduce the angle between the long air gun source array 7 and the water surface, and avoid the end of the long air gun source array 7 from being directly inserted into the water, further reducing the impact of the buoyancy of the water on the long air gun source array 7 and the impact caused by the interaction between the middle and front ends of the long air gun source array 7 and the ramp slideway due to entering the water. When the long air gun source array 7 is recovered, the long air gun source array 7 can be more easily lifted onto the slope slideway by controlling the inflation and deflation of the first air bag 81 and the second air bag 82 .

[0034] Preferably, the inflation device includes an air compressor 83, an input pipeline 84, a gas cylinder 85 and an output pipeline 86 which are connected in sequence; the output pipeline 86 is divided into a first air supply pipeline 87 and a second air supply pipeline 88, the first air supply pipeline 87 is connected to the first airbag 81, the second air supply pipeline 88 is connected to the second airbag 82, and a first stop valve 891 and a second stop valve 892 are respectively arranged on the first air supply pipeline 87 and the second air supply pipeline 88. A first exhaust pipe 893 is also arranged on the first air supply pipeline 87, the first exhaust pipe 893 is located at the air outlet side of the first stop valve 891, and a first exhaust valve 894 is arranged on the first exhaust pipe 893; a second exhaust pipe 895 is also arranged on the second air supply pipeline 88, the second exhaust pipe 895 is located at the air outlet side of the second stop valve 892, and a second exhaust valve 896 is arranged on the second exhaust pipe 895. The air compressor 83 compresses the air through the input pipeline 84 and stores it in the gas cylinder 85. The gas cylinder 85 transports the compressed air to the first air supply pipeline 87 and the second air supply pipeline 88 through the output pipeline 86. The first stop valve 891 and the first exhaust valve 894, the second stop valve 892 and the second exhaust valve 896 are controlled to respectively realize the inflation and deflation of the first airbag 81 and the second airbag 82.

[0035] Specifically, the input pipeline 84 is also provided with a check valve 841, a marine pressure gauge 842, a safety valve 843, a pressure switch 844 and a gas-water separator 845. The output pipeline 86 is also provided with a pressure reducing valve group 861, a water separation filter 862 and a third stop valve 863.

[0036] Preferably, the slide rail 4 is an I-beam hanging rail and a pulley, and the top end of the third hanging chain 5 is fixed on the pulley. The third hanging chain 5 hangs the long air gun source array 7 and slides along the I-beam hanging rail under the drive of the pulley to realize the movement of the position of the long air gun source array 7.

[0037] Specifically, the I-beam hanging rail is fixed to the lower surface of the longitudinal beam by bolts, and the pulley includes rollers and U-shaped frames arranged in the track grooves on both sides of the I-beam hanging rail, the rollers are rotatably connected to the U-shaped frame through a rotating shaft, the U-shaped frame is connected to a third U-shaped shackle, the upper end of the third lifting chain 5 is connected to the third U-shaped shackle, and the lower end is connected to the third bow-shaped shackle, and the third bow-shaped shackle is used to hook the third lifting ring of the long air gun source array 7.

[0038] Preferably, there are two slide rails 4, which are located on both sides of the telescopic device 2, so that two groups of long air gun source arrays 7 can be set in the support frame 1, and the two groups of long air gun source arrays 7 can be taken into account by one telescopic device 2.

[0039] Working principle of this application device:

[0040] Combination Figure 1 , Figure 5 , Figure 6 and Figure 7As shown, in the storage state, a plurality of third lifting chains 5 are hooked on the corresponding third lifting rings on the long air gun source array 7 , and the long air gun source array 7 is lifted and placed in the support frame 1 .

[0041] Release process:

[0042] The first lifting chain 31 is hooked on the first lifting ring 71 of the lifting device of the long air gun source array 7, and the first stage of the telescopic device 2 is extended to drive the first lifting chain 31 and the long air gun source array 7 to extend outward from the opening of the support frame 1, and the third lifting chain 5 moves along the slide rail 4 with the long air gun source array 7. And as the long air gun source array 7 continues to extend, the operator gradually unties the corresponding third lifting chain 5, so that the long air gun source array 7 is separated from the third lifting chain 5. After the first stage is fully extended, the second lifting chain 32 is hooked on the second lifting ring 72 of the lifting device of the long air gun source array 7, and the remaining third lifting chains 5 are all untied. After the second stage of the telescopic device 2 continues to extend until it is fully extended, the first exhaust valve 894 is closed, and the first stop valve 891 and the third stop valve 863 are opened to inflate the first airbag 81; after the first airbag 81 is filled with air, the first stop valve 891 is closed, and the first retractable winch 33 releases the first lifting chain 31 so that the first airbag 81 is gradually lowered to the water surface. The third stage of the telescopic device 2 continues to extend and the second retracting winch 34 releases the second suspension chain 32. The third stage of the telescopic device 2 extends to pull the long air gun source array 7 to slowly slide down along the ramp slideway. The second suspension chain 32 is slowly released to allow the second air bag 82 to contact the water surface. The first exhaust valve 894 is opened to deflate the first air bag 81, so that the long air gun source array 7 is released into the water. After deflation is completed, the first exhaust valve 894 is closed. During the release process, the gun cable winch 6 gradually releases the gun cable.

[0043] Recycling process:

[0044] Close the second exhaust valve 896, open the second stop valve 892 and the third stop valve 863 to inflate the second airbag 82, and close the second stop valve 892 after it is filled with air. The second retractable winch 34 retracts the second lifting chain 32, and the third stage of the telescopic device 2 is contracted, which can conveniently lift the end of the long air gun source array 7 to the ramp slide. After the end of the long air gun source array 7 is lifted, open the second exhaust valve 896 to deflate the second airbag 82, and close the second exhaust valve 896 after the deflation is completed. After the third stage of contraction is completed, the end of the long air gun source array 7 is pulled to the stern deck, at which time the second retractable winch 34 stops working and hooks the third lifting chain 5 on the corresponding third lifting ring in turn. The second stage of the telescopic device 2 continues to contract and then pulls the long air gun source array 7 to continue to be recovered, and the third lifting chain 5 moves along the slide rail 4. After the second stage of contraction is completed, the second chain 32 is untied, and the first retracting winch 33 retracts the first chain 31 to make the long air gun source array 7 out of the water until it is horizontal, and then the first stage of the telescopic device 2 continues to contract. After the first stage of contraction is completed, the long air gun source array 7 is retracted into the support frame 1, and the first chain 31 is untied, and the long air gun source array 7 is completely lifted by the third chain 5. During the recovery process, the gun cable winch 6 gradually retracts the gun cable.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A release device for a long gun array, characterized in that: include: A support frame (1), a telescopic device (2), a first lifting chain (31), a second lifting chain (32), a first retractable winch (33), a second retractable winch (34), a slide rail (4), a third lifting chain (5) and a gun cable winch (6); The support frame (1) is arranged at the stern of the hull (9) and has an opening facing the stern; The telescopic device (2) is arranged on the top of the support frame (1); the first lifting chain (31) and the second lifting chain (32) are arranged on the telescopic device (2); and the telescopic device (2) can drive the first lifting chain (31) and the second lifting chain (32) to extend and retract from the opening; The first lifting chain (31) and the second lifting chain (32) are respectively detachably connected to the first lifting ring (71) and the second lifting ring (72) of the long air gun source array (7) lifting device; the first lifting chain (31) is retracted and released by the first retracting winch (33), and the second lifting chain (32) is retracted and released by the second retracting winch (34); The slide rail (4) is arranged on the support frame (1) along the telescopic direction of the telescopic device (2); there are a plurality of third suspension chains (5); the plurality of third suspension chains (5) slide along the slide rail (4); and the third suspension chains (5) are detachably connected to corresponding third suspension rings on the long air gun source array (7); The gun cable winch (6) is arranged on the side of the support frame (1) close to the bow direction, and the gun cable is wound around the gun cable winch (6), and the gun cable is connected to the long air gun source array (7).

2. A release device for a long gun array according to claim 1, characterized in that: The telescopic device (2) adopts a multi-stage telescopic cylinder, the first lifting chain (31) is installed on the first stage of the multi-stage telescopic cylinder, and the second lifting chain (32) is installed on the second stage of the multi-stage telescopic cylinder.

3. A release device for a long gun array according to claim 1, characterized in that: The release device also includes a buffer auxiliary component, which includes: a first airbag (81), a second airbag (82) and an inflation device; the first airbag (81) and the second airbag (82) are respectively fixed at two ends of the bottom of the long air gun source array (7).

4. A release device for a long gun array according to claim 3, characterized in that: The inflation device comprises an air compressor (83), an input pipeline (84), a gas cylinder (85) and an output pipeline (86) which are connected in sequence; the output pipeline (86) is divided into a first air supply pipeline (87) and a second air supply pipeline (88); the first air supply pipeline (87) is connected to the first air bag (81), and the second air supply pipeline (88) is connected to the second air bag (82); A first stop valve (891) and a second stop valve (892) are respectively provided on the first air supply pipeline (87) and the second air supply pipeline (88); a first exhaust pipe (893) is also provided on the first air supply pipeline (87), the first exhaust pipe (893) is located on the air outlet side of the first stop valve (891), and a first exhaust valve (894) is provided on the first exhaust pipe (893); a second exhaust pipe (895) is also provided on the second air supply pipeline (88), the second exhaust pipe (895) is located on the air outlet side of the second stop valve (892), and a second exhaust valve (896) is provided on the second exhaust pipe (895).

5. A release device for a long gun array according to claim 1, characterized in that: The slide rail (4) is an I-beam hanging rail and a pulley, and the top end of the third hanging chain (5) is fixed on the pulley.

6. A release device for a long gun array according to claim 1, characterized in that: There are two slide rails (4), and the two slide rails (4) are located on both sides of the telescopic device (2).

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