Underwater sludge discharge equipment

Abstract

The utility model provides underwater sludge discharge equipment which comprises a frame structure, a high-pressure water inlet pipe, a jet pipe, a sludge flushing pipeline, a sludge suction and discharge pipeline, an air inlet pipeline and a moving mechanism, the jet pipe and the sludge flushing pipeline are connected with the high-pressure water inlet pipe through a tee joint, and a jet pipe nozzle is arranged at the other end of the jet pipe. The mud flushing pipeline comprises a main body pipeline, an inner mud flushing coil pipe and an outer mud flushing coil pipe, high-pressure water mud flushing nozzles are arranged at the bottoms of the inner mud flushing coil pipe and the outer mud flushing coil pipe, the end part of the lower part of the air inlet pipeline is connected with the air inlet coil pipe, a plurality of high-pressure air nozzles are arranged at the top of the air inlet coil pipe, and the mud suction and discharge pipeline comprises a mud suction port, a throat pipe and a mud discharge pipe. And the top of the dredge pipe is connected with an external dredge pipe above the water surface. According to different working environments, two working modes of high-pressure water jet sludge discharge and gas lift sludge discharge can be independently or simultaneously applied, the sludge discharge efficiency can be improved, and the environmental adaptability can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater shipwreck desilting and mud removal inside and outside steel piles, in particular to underwater mud removal equipment. Background Art

[0002] In the construction of marine engineering and offshore wind power projects, a large amount of mud removal operations are often required inside and outside the piles during the steel pile cutting or grouting construction. When cutting steel piles, the cutting position needs to be 4m below the mud line according to regulations. Therefore, it is necessary to complete the mud removal operation inside or outside the pile before the cutting operation can be carried out inside or outside the pile accordingly; in the construction of the oil platform jacket and the offshore wind farm booster station foundation, it is often necessary to remove mud before grouting operations can be carried out inside the pile. In addition, in the field of shipwreck salvage, it is often necessary to clean the silt inside and outside the shipwreck cabin for the purpose of weight reduction before salvaging, which is a key factor in the successful floating of the shipwreck. Therefore, it is very necessary to study efficient mud removal equipment.

[0003] At present, there are two main types of mud removal in the field of salvage and pile removal according to different principles: air lift mud removal equipment and slurry pump mud removal, in addition to a small amount of jet mud removal equipment. Among them, slurry pumps cannot remove mud removal operations containing hard objects such as gravel on the seabed, the pump body is easily damaged and has high requirements for the head; air lift mud removal operations have good mud removal effects in deep water environments, but are not efficient in shallow water conditions; jet mud removal equipment has high efficiency in shallow water, but requires a high-pressure pump with a large head in deep water. Therefore, the above three types of mud removal equipment each have obvious disadvantages, and it is necessary to design an underwater mud removal equipment that can adapt to different application scenarios. Utility Model Content

[0004] In view of the technical problems of the limited application scenarios and low efficiency of the existing underwater mud discharge equipment mentioned above, an underwater mud discharge equipment is provided. The utility model mainly integrates air lift mud discharge equipment, high-pressure water mud discharge equipment and mud flushing system, and can perform efficient mud discharge operations in different environments. The technical means adopted by the utility model are as follows:

[0005] An underwater mud discharge device comprises: a frame structure and a high-pressure water inlet pipe, a jet pipe, a mud flushing pipeline, a mud suction and discharge pipeline, an air intake pipeline and a moving mechanism installed on the frame structure, wherein the upper part of the high-pressure water inlet pipe is used to be connected to an external high-pressure water pump;

[0006] One end of the jet pipe is connected to the lower part of the high-pressure water inlet pipe through a tee, the other end of the jet pipe is installed in the mud suction and discharge pipeline, and the other end of the jet pipe is a jet pipe nozzle;

[0007] The mud flushing pipeline includes a main pipeline, an inner mud flushing coil and an outer mud flushing coil. One end of the main pipeline is connected to the lower part of the high-pressure water inlet pipe through a tee, and the other end is connected to the inner mud flushing coil. The inner mud flushing coil is connected to the outer mud flushing coil. The bottoms of the inner mud flushing coil and the outer mud flushing coil are both provided with high-pressure water mud flushing nozzles.

[0008] The upper part of the air intake pipeline is used to connect to an external air compressor, the lower part of the air intake pipeline is installed in the mud suction and discharge pipeline, and the lower end of the air intake pipeline is connected to the air intake coil, the air intake coil is fixed around the other end of the jet pipe, and the top of the air intake coil is provided with a plurality of high-pressure gas nozzles, and the plurality of high-pressure gas nozzles are arranged around the circumference of the jet pipe nozzle;

[0009] The mud suction and discharge pipeline is a channel for discharging mud and water, including a mud suction port, a throat and a mud discharge pipe connected in sequence from bottom to top. The other end of the jet pipe and the lower part of the air intake pipeline are placed in the mud suction port. The jet pipe nozzle and the high-pressure air nozzle are arranged at the front part of the throat. The top of the mud discharge pipe is used to connect an external mud discharge pipe to above the water surface.

[0010] Furthermore, the frame structure includes an upper ring beam, multiple upper cross bars, multiple lower cross bars and multiple connecting rods, one end of the multiple connecting rods is connected to the upper ring beam, the other end of the multiple connecting rods is connected to the external mud flushing coil, one end of the multiple upper cross bars is connected to the upper ring beam, the other end of the multiple upper cross bars is connected to the mud discharge pipe, and the inner mud flushing coil and the outer mud flushing coil are connected via multiple lower cross bars.

[0011] Furthermore, the moving mechanism includes a plurality of guide wheels installed on the connecting rod, so as to facilitate the movement of the entire mud discharge equipment in the steel pile.

[0012] Furthermore, an inlet pipe flange is provided on the upper portion of the high-pressure water inlet pipe, and the inlet pipe flange is used to connect to an external high-pressure water pump.

[0013] Furthermore, the jet tube is U-shaped.

[0014] Furthermore, a jet tube ball valve is provided in the middle of the jet tube.

[0015] Furthermore, the jet pipe nozzle is coaxial with the mud suction and discharge pipeline.

[0016] Furthermore, the mud suction port is in a trumpet shape that gradually tapers from bottom to top.

[0017] Furthermore, a mud discharge pipe flange is provided at the top of the mud discharge pipe, and the mud discharge pipe flange is used to be connected to an external mud discharge pipe.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] 1. The utility model can perform efficient mud discharge operations in different environments by integrating air lift mud discharge equipment, high-pressure water mud discharge equipment and mud flushing system. According to different working environments, high-pressure water jet mud discharge and air lift mud discharge can be used separately or simultaneously to improve mud discharge efficiency and environmental adaptability.

[0020] 2. When the water inlet pipe of the utility model is connected to high-pressure water and the ball valve of the jet pipe is opened, a part of the high-pressure water is ejected from the nozzle of the mud flushing pipe to disperse the mud and sand on the seabed and form a mixture of water and mud and sand at the mud suction port; the other part is ejected from the nozzle of the jet pipe to form a negative pressure at the throat position, driving the mud and water mixture at the mud suction port to be discharged upward, thereby realizing the mud discharge operation by high-pressure water jet.

[0021] 3. The utility model has an air intake pipe connected to an external air compressor, and high-pressure air is ejected from the nozzle of the air intake pipe. The gas expands and rises at the throat position to form a negative pressure. At the same time, the high-pressure water inlet pipe is connected to a high-pressure water pump, the jet pipe ball valve is closed, and the mud flushing pipe nozzle ejects high-pressure water to disperse the seabed mud and sand, forming a mixture of water and mud and sand at the mud suction port. The mud-water mixture is discharged upward under the action of high-pressure gas.

[0022] 4. The air inlet pipe of the utility model is connected to the air compressor, the high-pressure water inlet pipe is connected to the high-pressure water pump, and at the same time the jet pipe ball valve is opened, the high-pressure water jet and the air lift operate simultaneously to complete the mud discharge.

[0023] 5. A jet tube ball valve is arranged in the middle of the jet tube of the utility model to control the opening and closing of the pipeline.

[0024] 6. The utility model installs a plurality of guide wheels on the connecting rod, so that the entire mud discharge equipment can enter the interior of the steel pile, move inside the steel pile, and operate inside the pile.

[0025] Based on the above reasons, the utility model can be widely promoted in the fields of mud discharge and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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.

[0027] Figure 1 It is a schematic diagram of the structure of the utility model.

[0028] Figure 2 for Figure 1 main view.

[0029] Figure 3 for Figure 1 Bottom view of .

[0030] Figure 4 for Figure 3 Middle AA cross section.

[0031] Figure 5 Figure 2 is a partial view of the jet tube nozzle and the high-pressure gas nozzle.

[0032] In the figure: 1. high-pressure water inlet pipe; 2. water inlet pipe flange; 3. tee; 4. jet pipe; 5. jet pipe ball valve; 6. jet pipe nozzle; 7. mud flushing pipeline; 8. inner mud flushing coil; 9. outer mud flushing coil; 10. mud flushing nozzle; 11. mud suction port; 12. throat; 13. mud discharge pipe; 14. mud discharge pipe flange; 15. air intake pipeline; 16. air intake coil; 17. high-pressure gas nozzle; 18. frame structure; 19. connecting rod; 20. guide wheel. DETAILED DESCRIPTION

[0033] 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.

[0034] The utility model provides an underwater mud removal device, which relates to the technical field of underwater shipwreck desilting and mud removal inside and outside steel piles. The underwater mud removal device of the utility model comprises: a high-pressure water inlet pipe 1, a jet pipe 4, a mud flushing pipeline 7, a mud suction and discharge pipeline, an air intake pipeline and a frame structure 18, and the above structure is connected to the frame structure 18 as a whole through a connecting rod 19, that is, the high-pressure water inlet pipe 1, the jet pipe 4, the mud flushing pipeline 7, the mud suction and discharge pipeline, and the air intake pipeline are fixedly installed in the frame structure 18 through the connecting rod 19, and a plurality of guide wheels 20 (rollers) are installed on the connecting rod 19, so that the entire mud removal device can enter the interior of the steel pile, so that the entire mud removal device can move in the steel pile and operate in the pile.

[0035] The upper part (top) of the high-pressure water inlet pipe 1 is provided with an inlet pipe flange 2, which can be connected to an external high-pressure water pump. The lower part of the high-pressure water inlet pipe 1 is divided into a jet pipe 4 and a mud flushing pipeline 7 through a tee 3, that is, the jet pipe 4 and the mud flushing pipeline 7 are connected to the high-pressure water inlet pipe 1 through the tee 3. The jet pipe 4 is U-shaped, and a jet pipe ball valve 5 is provided in the middle to complete the opening and closing of the control pipeline. The end is a jet pipe nozzle 6. One end of the jet pipe 4 with the jet pipe nozzle 6 is installed in the mud suction and discharge pipeline, and the jet pipe nozzle 6 is coaxial with the mud suction and discharge pipeline.

[0036] The mud flushing pipeline 7 includes two inner and outer coils, namely an inner mud flushing coil 8 and an outer mud flushing coil 9, both of which are connected to the high-pressure water inlet pipe 1. High-pressure water mud flushing nozzles 10 are provided at the bottom of the inner mud flushing coil 8 and the outer mud flushing coil 9.

[0037] The air intake pipeline 15 is installed in the mud suction and discharge pipeline and can be connected to an external air compressor. The air intake pipeline 15 is connected to an air intake coil 16, which is fixed around the jet pipe 4. Three high-pressure air nozzles 17 are arranged on the top of the air intake coil 16.

[0038] The mud suction and discharge pipeline is a channel for mud and water to be discharged, and includes a mud suction port 11, a throat pipe 12 and a mud discharge pipe 13 which are connected in sequence from bottom to top. The mud suction port 11 is trumpet-shaped, and the jet pipe nozzle 6 and the high-pressure gas nozzle 17 are arranged at the front of the throat pipe 12 ( Figure 4 A mud discharge pipe flange 14 is provided on the top of the mud discharge pipe 13 to connect an external mud discharge pipe to above the water surface.

[0039] The frame includes an upper ring beam and 6 connecting rods 19, the lower part of the connecting rod 19 is connected to the outer mud flushing coil 9 of the mud flushing pipeline 7, the upper part of the connecting rod 19 is connected to the upper ring beam, and the upper ring beam is connected to the mud discharge pipe 13 through an upper cross bar. A guide wheel 20 is installed on the connecting rod 19 to facilitate the movement of the utility model in the pile.

[0040] According to different working environments, the utility model can apply two working modes, high-pressure water jet mud discharge and air lift mud discharge, separately or simultaneously, which can improve mud discharge efficiency and enhance environmental adaptability.

[0041] Example 1

[0042] When the high-pressure water inlet pipe 1 is connected to high-pressure water and the jet tube ball valve 5 is opened, the high-pressure water is divided at the tee 3. One part of the water is ejected from the mud flushing nozzle 10 through the mud flushing pipeline 7 to disperse the seabed mud and sand, forming a mixture of water and mud and sand at the mud suction port 11. The other part is ejected from the jet tube nozzle 6 through the jet tube 4. According to Bernoulli's principle, the pressure is small at the position of the large flow rate, so a low-pressure area is formed at the position of the throat 12 (negative pressure is formed at the position of the throat 12). Under the action of the pressure difference, the mud-water mixture at the mud suction port 11 is driven to move upward and discharged to the water surface through the mud discharge pipe 13 and the external pipeline, thereby realizing the high-pressure water jet mud discharge operation.

[0043] Example 2

[0044] The air inlet pipe 15 is connected to an external air compressor, and high-pressure air is ejected from the high-pressure air nozzle 17 through the air inlet coil 16, generating bubbles at the throat 12, which then expand and rise (the gas expands and rises at the throat 12), forming a negative pressure. At the same time, the high-pressure water inlet pipe 1 is connected to the high-pressure water pump, and the jet tube ball valve 5 is closed. All the high-pressure water enters the mud flushing pipe 7, and the mud flushing nozzle 10 ejects high-pressure water to disperse the seabed mud and sand, forming a mixture of water and mud and sand at the mud suction port 11. The mud-water mixture moves upward under the pressure difference generated by the high-pressure gas, and is discharged to the surface of the water through the mud discharge pipe 13 and the external pipeline to realize the air lift mud discharge operation.

[0045] Example 3

[0046] The air inlet pipe 15 is connected to an external air compressor, the high-pressure water inlet pipe 1 is connected to a high-pressure water pump, and at the same time the jet pipe ball valve 5 is opened, and the high-pressure water jet and air lift are carried out simultaneously to complete the mud removal operation.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded 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 solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An underwater mud discharge device, characterized in that: include: A frame structure (18) and a high-pressure water inlet pipe (1), a jet pipe (4), a mud flushing pipeline (7), a mud suction and discharge pipeline, an air intake pipeline and a moving mechanism installed on the frame structure (18), wherein the upper portion of the high-pressure water inlet pipe (1) is used to be connected to an external high-pressure water pump; One end of the jet pipe (4) is connected to the lower part of the high-pressure water inlet pipe (1) through a tee (3), the other end of the jet pipe (4) is installed in the mud suction and discharge pipeline, and the other end of the jet pipe (4) is a jet pipe nozzle (6); The mud flushing pipeline (7) comprises a main pipeline, an inner mud flushing coil (8) and an outer mud flushing coil (9); one end of the main pipeline is connected to the lower part of the high-pressure water inlet pipe (1) through a tee (3), and the other end is connected to the inner mud flushing coil (8); the inner mud flushing coil (8) is connected to the outer mud flushing coil (9); and the bottoms of the inner mud flushing coil (8) and the outer mud flushing coil (9) are both provided with high-pressure water mud flushing nozzles (10); The upper part of the air intake pipeline (15) is used to connect to an external air compressor, the lower part of the air intake pipeline (15) is installed in the mud suction and discharge pipeline, and the lower end of the air intake pipeline (15) is connected to the air intake coil (16), the air intake coil (16) is fixed around the other end of the jet pipe (4), and the top of the air intake coil (16) is provided with a plurality of high-pressure gas nozzles (17), and the plurality of high-pressure gas nozzles (17) are arranged around the circumference of the jet pipe nozzle (6); The mud suction and discharge pipeline is a channel for discharging mud and water, and comprises a mud suction port (11), a throat (12) and a mud discharge pipe (13) which are sequentially connected from bottom to top; the other end of the jet pipe (4) and the lower part of the air inlet pipeline (15) are both placed in the mud suction port (11); the jet pipe nozzle (6) and the high-pressure air nozzle (17) are arranged at the front part of the throat (12); and the top of the mud discharge pipe (13) is used to connect an external mud discharge pipe to above the water surface.

2. The underwater mud removal equipment according to claim 1, characterized in that: The frame structure (18) comprises an upper ring beam, a plurality of upper cross bars, a plurality of lower cross bars and a plurality of connecting rods (19), one end of the plurality of connecting rods (19) being connected to the upper ring beam, the other end of the plurality of connecting rods (19) being connected to the outer mud flushing coil (9), one end of the plurality of upper cross bars being connected to the upper ring beam, the other end of the plurality of upper cross bars being connected to the mud discharge pipe (13), and the inner mud flushing coil (8) and the outer mud flushing coil (9) being connected via a plurality of lower cross bars.

3. The underwater mud removal equipment according to claim 2, characterized in that: The moving mechanism comprises a plurality of guide wheels (20) mounted on a connecting rod (19), so as to facilitate the movement of the entire mud discharge device within the steel pile.

4. The underwater mud removal equipment according to claim 1, characterized in that: The upper part of the high-pressure water inlet pipe (1) is provided with an inlet pipe flange (2), and the inlet pipe flange (2) is used to connect to an external high-pressure water pump.

5. The underwater mud removal equipment according to claim 1, characterized in that: The jet tube (4) is U-shaped.

6. The underwater mud removal equipment according to claim 1, characterized in that: A jet tube ball valve (5) is provided in the middle of the jet tube (4).

7. The underwater mud removal equipment according to claim 1, characterized in that: The jet pipe nozzle (6) is coaxial with the mud suction and discharge pipeline.

8. The underwater mud removal equipment according to claim 1, characterized in that: The mud suction port (11) is in a trumpet shape that gradually contracts from bottom to top.

9. The underwater mud removal equipment according to claim 1, characterized in that: A mud discharge pipe flange (14) is provided at the top of the mud discharge pipe (13), and the mud discharge pipe flange (14) is used to be connected to an external mud discharge pipe.

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