Protective device in coating cleaning high-pressure water spray head

Abstract

The invention provides a coating cleaning high-pressure water spray head inner protection device, and relates to the technical field of offshore oil engineering, the coating cleaning high-pressure water spray head inner protection device comprises an upper protection mechanism, a middle-section slidable protection block, a bottom protection block and a hemispherical nozzle protector, the upper protection mechanism is installed at the upper end in a spray head, and the two sides of the upper protection mechanism are connected with a nozzle rod respectively; the middle-section slidable protection block is installed in the middle of the interior of the nozzle, the two ends of the middle-section slidable protection block are connected with the nozzle pipe, the bottom protection block is installed at the bottom of the nozzle, the left side and the right side of the bottom protection block are connected with the nozzle pipe, and the hemispherical nozzle protector is fixedly installed at the end of the nozzle. According to the technical scheme, the problem that when the middle of the nozzle rotates, steel wires or other objects stretch into the nozzle to be wound is solved, and meanwhile the risk that the end of the nozzle and a steel wire grid are pulled and hung is avoided. And the safety of the coating cleaning equipment during operation is ensured.

Description

Technical Field

[0001] This invention relates to the field of marine oil engineering technology, and in particular to an internal protective device for a high-pressure water nozzle used for coating cleaning. Background Technology

[0002] When using high-pressure water equipment to clean cement coatings on bottom pipes, the cement interior consists of a single or double layer of woven steel wire mesh. During the high-pressure water cleaning process, the steel wire mesh often breaks irregularly due to the high pressure and the sprayed cement particles. Most wires are single strands, while some are two or more strands with mesh openings. Some wires are elastic, causing them to bounce upwards, easily entangled with the rotating U-shaped nozzle. This obstructs the nozzle's rotation and cleaning operation, leading to damage to the nozzle and equipment. This affects project quality, safety, and schedule. Summary of the Invention

[0003] The main technical problem to be solved by this invention is that the rotating U-shaped nozzle and the steel wire become entangled, which obstructs the nozzle rotation cleaning operation, causes damage to the nozzle and equipment, and affects the project quality, safety and progress. In order to overcome the above-mentioned defects of the prior art, an internal protective device for high-pressure water nozzles for coating cleaning is provided.

[0004] The technical solution adopted by this invention to solve its technical problem is: A protective device for a high-pressure water nozzle used for coating cleaning includes: an upper protective mechanism, a middle sliding protective block, a bottom protective block, and a hemispherical nozzle protector. The upper protective mechanism is installed at the upper end inside the nozzle, and its two sides are connected to the nozzle rod. The middle sliding protective block is installed in the middle position inside the nozzle, and its two ends are connected to the nozzle tube. The bottom protective block is installed at the bottom of the nozzle, and its left and right sides are connected to the nozzle tube. The hemispherical nozzle protector is fixedly installed at the end of the nozzle.

[0005] Furthermore, nozzle tube locking mechanisms are installed on both sides of the upper protective mechanism. The installation angle of the nozzle tube locking mechanism is adjustable, and the nozzle tube locking mechanism is connected to the nozzle rod.

[0006] Furthermore, nozzle tube locking mechanisms are installed on both sides of the sliding protective block in the middle section. The installation angle of the nozzle tube locking mechanism is adjustable, and the nozzle tube locking mechanism is connected to the nozzle tube.

[0007] Furthermore, the length of the bottom protective block is adjustable, and nozzle tube locking mechanisms are installed on the left and right sides of the bottom protective block. The installation angle of the nozzle tube locking mechanisms is adjustable, and the nozzle tube locking mechanisms are connected to the nozzle tubes.

[0008] Furthermore, the hemispherical nozzle protector is fixedly installed at the nozzle end by a tapered thread locking ring.

[0009] Furthermore, the sliding protective block is equipped with a retractable crossbar.

[0010] The beneficial effects of this invention are: By employing the technical solution of this invention, when using the protective device inside the high-pressure water nozzle for coating cleaning, the device is installed between the two nozzles, creating a connection with an adjustable angle and a telescopic allowance for the middle crossbar. This forms a complete surface through splicing, and the spherical protection at the nozzle outlet solves the problem of steel wire or other objects getting entangled when the nozzle rotates in the middle, while also avoiding the risk of snagging between the nozzle tip and the steel wire mesh. This ensures the safety of the coating cleaning equipment during operation. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the upper protective mechanism of the present invention; Figure 3 This is a schematic diagram of the sliding protective block structure in the middle section of the present invention; Figure 4 This is a schematic diagram of the bottom protective block structure of the present invention; Figure 5 This is a schematic diagram of the tapered thread locking ring and hemispherical nozzle protector of the present invention.

[0013] Explanation of the labels in the diagram: 1. Nozzle tube locking mechanism; 2. Upper protection mechanism; 3. Middle section sliding protection block; 4. Bottom protection block; 5. Tapered thread locking ring; 6. Hemispherical nozzle protector. Detailed Implementation

[0014] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions herein are used to explain the present invention, but are not intended to limit the present invention.

[0015] Reference Figures 1-5As shown, this invention discloses an internal protective device for a high-pressure water nozzle used for coating cleaning, comprising: an upper protective mechanism 2, a middle sliding protective block 3, a bottom protective block 4, and a hemispherical nozzle protector 6. The upper protective mechanism 2 is installed at the upper end inside the nozzle, and nozzle tube locking mechanisms 1 are respectively connected to both sides of the upper protective mechanism 2. The nozzle tube locking mechanisms 1 are connected to the nozzle rod, and the nozzle tube locking mechanisms 1 can be adjusted according to the nozzle tube angle, so that the upper protective mechanism 2 is installed at the upper end inside the nozzle.

[0016] Furthermore, the middle sliding protective block 3 is installed in the middle position inside the nozzle, and the nozzle tube locking mechanism 1 is connected to both sides of the middle sliding protective block 3, which connects the nozzle tube locking mechanism 1 to the nozzle tube and adjusts the angle.

[0017] The bottom protective block 4 is installed at the bottom of the nozzle. The length of the bottom protective block 4 can be adjusted according to the length space at the bottom of the nozzle. Nozzle tube locking mechanisms 1 are provided on the left and right sides of the bottom protective block 4. The nozzle tube locking mechanisms 1 are connected to the nozzle tube and the angle can be adjusted. The hemispherical nozzle protector 6 is installed at the end of the nozzle and is fixed by a tapered thread locking ring 5.

[0018] Furthermore, after the components are assembled, an integral curved protective structure is formed inside the nozzle, and the connection points have movable angles. The crossbar of the sliding protective block 3 in the middle section has telescopic allowance. Through splicing, the nozzle forms an integral curved protective device from the inside.

[0019] Working principle of the invention: The upper protective mechanism 2 of this invention is placed at the upper end inside the nozzle and connected to the nozzle rod via the nozzle tube locking mechanism 1. The nozzle tube locking mechanism 1 is adjusted appropriately according to the nozzle tube angle to install the upper protective mechanism 2 at the upper end inside the nozzle. Then, the middle sliding protective block 3 is installed in the middle position inside the nozzle, and the nozzle tube locking mechanism 1 is adjusted at the nozzle tube angle. According to the length space at the bottom of the nozzle, the length of the bottom protective block 4 is adjusted, the nozzle tube locking mechanism 1 is installed on the nozzle tube, and the angle is adjusted. Finally, the hemispherical nozzle protector 6 is installed at the nozzle end. This forms an integral curved surface protective device for the nozzle from the inside.

[0020] This invention, based on the structure of a high-pressure water dual-nozzle system, installs the device between the two nozzles, creating a connection with an adjustable angle and a telescopic allowance for the central crossbar. This, combined with the splicing, forms a complete surface. Furthermore, the spherical protective design at the nozzle effectively prevents the high-pressure water nozzle from easily penetrating the interior of the two nozzles and becoming entangled with the nozzle rods, thus avoiding construction difficulties and the problem of entanglement between the rotating nozzles and the steel wire. Moreover, the construction is safe and reliable, providing assurance for coating cleaning and maintenance work on subsea pipelines.

[0021] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A protective device inside a high-pressure water nozzle for coating cleaning, comprising: The upper protective mechanism (2), the middle sliding protective block (3), the bottom protective block (4) and the hemispherical nozzle protector (6) are characterized in that the upper protective mechanism (2) is installed at the upper end inside the nozzle, and the two sides of the upper protective mechanism (2) are respectively connected to the nozzle rod. The middle sliding protective block (3) is installed in the middle position inside the nozzle, and the two ends of the middle sliding protective block (3) are connected to the nozzle tube. The bottom protective block (4) is installed at the bottom of the nozzle, and the left and right sides of the bottom protective block (4) are connected to the nozzle tube. The hemispherical nozzle protector (6) is fixedly installed at the end of the nozzle.

2. The protective device inside a high-pressure water nozzle for coating cleaning according to claim 1, characterized in that, A nozzle tube locking mechanism (1) is installed on both sides of the upper protective mechanism (2). The installation angle of the nozzle tube locking mechanism (1) is adjustable. The nozzle tube locking mechanism (1) is connected to the nozzle rod.

3. The protective device inside a high-pressure water nozzle for coating cleaning according to claim 1, characterized in that, The middle sliding protective block (3) is equipped with nozzle tube locking mechanisms (1) on both sides. The installation angle of the nozzle tube locking mechanism (1) is adjustable. The nozzle tube locking mechanism (1) is connected to the nozzle tube.

4. The protective device inside a high-pressure water nozzle for coating cleaning according to claim 1, characterized in that, The length of the bottom protective block (4) is adjustable. Nozzle tube locking mechanisms (1) are installed on the left and right sides of the bottom protective block (4). The installation angle of the nozzle tube locking mechanism (1) is adjustable. The nozzle tube locking mechanism (1) is connected to the nozzle tube.

5. The protective device inside a high-pressure water nozzle for coating cleaning according to claim 1, characterized in that, The hemispherical nozzle protector (6) is fixedly installed at the nozzle end by a tapered thread locking ring (5).

6. The protective device inside a high-pressure water nozzle for coating cleaning according to claim 3, characterized in that, The sliding protective block (3) has a retractable crossbar inside.

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