A kind of suspension gun plate

Abstract

A kind of suspension gun plate provided by the present invention includes a bottom plate, and a cable protection tube, a high-pressure gas distribution valve block, a cable joint fixing seat, a sensor fixing seat, a hydrophone fixing seat and an anti-collision protection frame fixedly connected to the surface of the bottom plate. The high-pressure gas distribution valve blocks are interconnected through main air pipes. The suspension gun plate provided by the present invention has a compact structure, integrating all cable joints, air pipe interfaces, depth sensors, pressure sensors, near-field hydrophones and necessary connecting parts thereon. The joints and sensors are firmly fixed and will not move due to vibration. There is no interference between cables and between cables and air pipes, and thus no wear. The rubber tube does not need to be drilled on the surface, increasing the service life.

Description

Technical Field

[0001] The present invention relates to the field of marine seismic survey equipment, and particularly to a hanging gun plate. Background Art

[0002] With the improvement of the comprehensive capabilities of China's marine scientific research vessels, not only professional marine seismic exploration vessels are engaged in marine seismic exploration operations, but more and more marine scientific research vessels are also taking on the task of seismic exploration. Among the seismic source equipment required for marine seismic exploration, a seismic source hanging gun plate is needed to suspend the air gun seismic source and aggregate and connect cables, air pipes, and sensors to the suspended air gun seismic source.

[0003] In the traditional seismic source hanging gun plate, cable connectors and sensors are placed in a rubber tube and cannot be fixed inside the rubber tube. With the vibration and impact of the seismic source, the cable connectors and sensors move inside the rubber tube for a long time, rubbing against the cables, resulting in a relatively high cable wear rate. And some cables need to pass through holes on the surface of the rubber tube to be connected to the equipment. Due to the long-term movement of the cables at the opening, both the cables are worn and the opening of the rubber tube is enlarged, reducing the service life of the rubber tube, thereby increasing the maintenance cost and usage cost. Therefore, it is necessary to design a new type of hanging gun plate to solve the above problems. Summary of the Invention

[0004] In order to solve the above technical problems, a hanging gun plate is provided, which has a compact structure and a small volume. Cable connectors, air pipe interfaces, depth sensors, pressure sensors, near-field hydrophones, and necessary connecting parts are all integrated thereon. The connectors and sensors are firmly fixed and will not move relative to each other due to vibration. There is no interference between cables and between cables and air pipes, so they will not be worn. The rubber tube does not need to be drilled, reducing the ways of damage and increasing the service life.

[0005] A hanging gun plate provided by the present invention includes a bottom plate, a collision protection frame, a main air pipe, a high-pressure air distribution valve block, a hydrophone fixing seat, a cable protection pipe, a cable connector fixing seat, a sensor fixing seat, and a rigging installed on the side of the bottom plate. The collision protection frame, the main air pipe, and the cable protection pipe are horizontally arranged on the bottom plate. It is characterized in that the high-pressure air distribution valve block, the hydrophone fixing seat, the cable connector fixing seat, and the sensor fixing seat do not protrude from the collision protection frame and the cable protection pipe.

[0006] Further, each end of the main air pipe is connected to a high-pressure air distribution valve block. One end of the high-pressure air distribution valve block is connected to the main air pipe, and the other end face is provided with a main air pipe interface and a branch air pipe interface.

[0007] Further, both ends of the cable protection tube are fixedly connected to the flexible protection tube by clamps. The cable protection tube houses multiple cables and cable joints inside, and there are openings in the middle of the tube wall through which the cables and cable joints can pass. The cables branch out from here and are connected to the corresponding joints and sensors.

[0008] Further, the cable joint fixing seat, the sensor fixing seat, and the hydrophone fixing seat respectively fix different joints and sensors, and there is a through hole between the cable joint fixing seat and the sensor fixing seat.

[0009] Further, one end of the high-pressure gas distribution valve block is connected to the main air pipe, and the other end has a main air pipe interface. The number of branch air pipe interfaces is N, where N≥1, and there are multiple branch air pipe interfaces beside it.

[0010] Further, on the bottom plate, in the blank positions that do not affect the strength and component installation, hollow holes are provided.

[0011] Further, at least 1 connecting rigging is provided at each of the four corners of the bottom plate along the horizontal direction for connecting multiple lance plates to each other. At least 1 connecting rigging is provided at the top of the bottom plate for lifting, and at least 2 connecting riggings are provided at the bottom of the bottom plate for hanging. Lifting and hanging operations are carried out through the connecting riggings at the top and bottom.

[0012] Further, the heights of the anti-collision protection frame and the cable protection tube protruding from the surface of the base are both higher than the highest points of the high-pressure gas distribution valve block, the main air pipe, and the hydrophone fixing seat.

[0013] Further, the edges and openings of the bottom plate and the cable protection tube are all rounded.

[0014] Further, the materials of the bottom plate, the anti-collision protection frame, the main air pipe, the high-pressure gas distribution valve block, the hydrophone fixing seat, the cable protection tube, the cable joint fixing seat, and the sensor fixing seat are all stainless steel, anti-corrosion aluminum alloy, or engineering plastic.

[0015] In summary, compared with the prior art, the lance plate provided by the present invention has the following beneficial effects: the overall structure of the lance plate provided by the present invention is simple. All the cable joints, air pipe interfaces, depth sensors, pressure sensors, near-field hydrophones, and necessary connecting parts are integrated on it. The layout is compact, the volume is small, the functions are rich, the joints and sensors are firmly fixed and will not move due to vibration. The air circuit adopts the end distribution method, which effectively reduces the number of main air pipes, avoids being bulky, the number of connected lance plates can be flexibly adjusted, which is convenient for expansion, and the materials of all components are anti-corrosion materials to prevent corrosion damage caused by seawater. Description of the Drawings

[0016] Figure 1 Front view structural schematic diagram of a lifting gun plate provided by the present invention;

[0017] Figure 2 Side view structural schematic diagram of a lifting gun plate provided by the present invention;

[0018] Figure 3 Top view structural schematic diagram of a lifting gun plate provided by the present invention;

[0019] In the figure:

[0020] 1. Connecting rigging; 2. Hydrophone fixing base; 3. Anti-collision protection frame; 4. Main air pipe; 5. Bottom plate; 6. High-pressure air distribution valve block; 7. Main air pipe interface; 8. Branch air pipe interface; 9. Cable protection pipe; 10. Sensor fixing base; 11. Cable joint fixing base. Specific implementation manner

[0021] The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments:

[0022] Anti-collision protection frame (3): Anti-collision;

[0023] High-pressure air distribution valve block (6): Multiple branches, one plate for multiple guns;

[0024] Cable protection pipe (9): Protect cables, anti-collision;

[0025] Holes in the bottom plate (5): Shock absorption, convenient for threading;

[0026] Rigging (1): Series connection of front and rear plates, upper connection to floating body, lower hanging of seismic source;

[0027] (11)(10)(2): Can fix various sensors

[0028] As Figures 1 to 3 shown, a lifting gun plate provided by the present invention includes a bottom plate 5 and a cable protection pipe 9, a high-pressure air distribution valve block 6, a cable joint fixing base 11, a sensor fixing base 10, a hydrophone fixing base 2 and an anti-collision protection frame 3 fixedly connected to the surface of the bottom plate 5. They are arranged compactly and there is no mutual interference between components. It meets various different functions under the condition of miniaturized overall dimensions. The cable joint fixing base 11 is fixedly connected to the bottom plate 5, so that the position and direction of the cable joint are fixed, the cable routing is consistent, preventing winding and wear caused by mutual movement, and also avoiding damage to the connecting rubber pipe between the lifting gun plates by punching holes. The high-pressure air distribution valve blocks 6 are connected and fixed to each other through the main air pipe 4 to prevent the loosening of the interfaces.

[0029] In a preferred embodiment, the cable protection tube 9 is fixedly connected to the flexible protection tube at both ends by clamps. The cable protection tube 9 houses multiple cables and cable joints inside. There are openings in the middle of the tube wall through which the cables and cable joints can pass. The cables branch out from here and are connected to the corresponding joints and sensors.

[0030] In a preferred embodiment, the cable joint fixing seat 11 is used to fix the cable joints, the sensor fixing seat 10 is used to fix the depth sensor or pressure sensor, and the hydrophone fixing seat 2 is used to fix the near-field hydrophone. Multiple different sensor functions are integrated on a single hanging gun plate, and the positions can be designed and adjusted according to the actual situation to avoid interference between the joints, sensors, and cable routing. The fixing seats can adopt multiple different fixing methods on the same hanging gun plate according to the actual situation of the equipment to be fixed, including semi-circular chocks, U-shaped clamps, or other firm fixing methods.

[0031] In a preferred embodiment, one end of the high-pressure gas distribution valve block 6 is connected to the main air pipe 4, and the other end is provided with a main air pipe interface 7. It can be connected to the corresponding interface of another hanging gun plate through a high-pressure hose. There are multiple branch air pipe interfaces 8 beside the main air pipe interface 7, and the number of branch air pipe interfaces 8 is greater than or equal to 1. Through the gas path inside the high-pressure gas distribution valve block 6, multiple branches are branched out from the main gas path to supply multiple devices. The design method of gas path distribution at the end effectively reduces the number of air pipes in the main line and prevents bulkiness.

[0032] In a preferred embodiment, two through holes are opened on the bottom plate 5 between the two high-pressure gas distributions 6, and through holes are opened between the cable joint fixing seat 11 and the sensor fixing seat 10, which greatly reduces the overall weight and at the same time makes the connection and routing on the front and back of the hanging gun plate convenient and simple.

[0033] In a preferred embodiment, multiple connecting riggings 1 are distributed at the four corners and the top of the bottom plate 5. Multiple hanging gun plates can be arranged in sequence and connected to each other through the connecting riggings 1. The number of connections can be flexibly adjusted, and lifting and suspension operations are carried out through the connecting riggings 1 at the top and bottom.

[0034] In a preferred embodiment, the heights of the anti-collision protection frame 3 and the cable protection tube 9 protruding from the surface of the base 5 are both higher than the highest points of the high-pressure gas distribution valve block 6, the main air pipe 4, and the hydrophone fixing seat 2, which can maximize the protection of the gas path, joints, and sensors from being damaged by accidental impacts.

[0035] In a preferred embodiment, the edges and openings of the bottom plate 5 and the cable protection tube are all rounded to avoid scratching the cables and air pipes.

[0036] In a preferred embodiment, the bottom plate 5, the anti-collision protection frame 3, the main air pipe 4, the high-pressure air distribution valve block 6, the hydrophone fixing seat 2, the cable protection pipe 9, the cable joint fixing seat 11, and the sensor fixing seat 10 are all made of stainless steel, anti-corrosion aluminum alloy or engineering plastic materials, especially materials resistant to seawater corrosion, effectively preventing corrosion damage caused by seawater. Under the premise of ensuring strength, 316 stainless steel or anti-corrosion aluminum alloy can usually be used.

[0037] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any minor modifications, equivalent replacements, and improvements made to the above embodiments based on the technical essence of the present invention shall be included within the protection scope of the technical solution of the present invention.

Claims

1. A lifting gun plate, comprising a bottom plate (5) and an anti-collision protection frame (3), a main air pipe (4), a high-pressure air distribution valve block (6), a hydrophone fixing seat (2), a cable protection pipe (9), a cable connector fixing seat (11), a sensor fixing seat (10), and a connecting rigging (1) installed on the side of the bottom plate (5). The anti-collision protection frame (3), the main air pipe (4), and the cable protection pipe (9) are horizontally arranged on the bottom plate (5), and it is characterized in that, The high-pressure gas distribution valve block (6), the hydrophone fixing seat (2), the cable joint fixing seat (11), and the sensor fixing seat (10) do not protrude from the anti-collision protection frame (3) and the cable protection tube (9). Both ends of the cable protection tube (9) are fixedly connected to the flexible protection tube with clamps. Both ends of the main gas pipe (4) are each connected to a high-pressure gas distribution valve block (6). One end of the high-pressure gas distribution valve block (6) is connected to the main gas pipe (4), and the other end face is provided with a main gas pipe interface (7) and a branch gas pipe interface (8). The number of the branch gas pipe interfaces (8) provided on the end face of the high-pressure gas distribution valve block (6) is N, where N ≥ 1. The cable protection tube (9) houses multiple cables and cable joints. An opening is provided in the middle of the cable protection tube (9), and multiple cables and cable joints are connected to corresponding joints and sensors through the opening.

2. The gantry plate according to claim 1, wherein, Two through holes are opened on the bottom plate (5) between the two high-pressure gas distribution valve blocks (6), and a through hole is opened on the bottom plate (5) between the cable joint fixing seat (11) and the sensor fixing seat (10).

3. A lifting gun plate according to claim 1, characterized in that, At least 1 connecting rigging (1) is provided at each of the four corners of the bottom plate (5) along the horizontal direction for connecting multiple lifting gun plates. At least 1 connecting rigging (1) is provided at the top of the bottom plate (5) for lifting, and at least 2 connecting rigging (1) are provided at the bottom of the bottom plate (5) for hanging.

4. A lifting gun plate according to claim 1, characterized in that, The edges and openings of the bottom plate (5) and the cable protection tube (9) are all rounded corners.

5. A lifting gun plate according to any one of claims 1 to 4, characterized in that, The materials of the bottom plate (5), the anti-collision protection frame (3), the main gas pipe (4), the high-pressure gas distribution valve block (6), the hydrophone fixing seat (2), the cable protection tube (9), the cable joint fixing seat (11), and the sensor fixing seat (10) are all stainless steel, anti-corrosion aluminum alloy, or engineering plastic.

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