Repair work cabin

Abstract

The repairing work cabin comprises an operation cabin, a material cabin, a lifting unit and an air pressure adjusting unit, the operation cabin is provided with a first cavity, an opening is formed in one end of the operation cabin in the axial direction, and an inlet hole is formed in the other end of the operation cabin; the material cabin is provided with a second cavity, the material cabin is fixedly connected with the operation cabin, the second cavity and the first cavity are communicated through the access hole, and the material cabin is movably provided with a sealing cabin door; the lifting unit is movably connected with the operation cabin, and the lifting unit can extend by the same / different lengths in the axial direction of the operation cabin so as to keep the operation cabin horizontal; the air pressure adjusting unit can supply air into the material cabin and the operation cabin and maintain the air pressure in the material cabin and the operation cabin within a preset range. The repairing work cabin can solve the problems of cofferdams and seepage prevention of underwater structure dry land repairing and newly-built construction to a certain extent.

Description

Technical Field

[0001] The present application relates to the technical field of underwater structure construction, and in particular to a repair work cabin. Background Art

[0002] Whether building or repairing underwater structures, how to take effective measures for dry land construction is the first problem that needs to be solved. Cofferdams are a traditional and conventional choice, but many projects are limited by their location and it is difficult to build cofferdams that cover a large area. Or due to basic conditions, the amount of anti-seepage work on the cofferdam is large or even difficult to achieve. Utility Model Content

[0003] A first aspect of an embodiment of the present application provides a repair work chamber, which can solve the problems of dry land repair of underwater structures, construction of new cofferdams and anti-seepage thereof to a certain extent.

[0004] A repair work chamber provided in a first aspect of an embodiment of the present application comprises: an operation chamber, the operation chamber having a first cavity, an opening being provided at one axial end of the operation chamber, and an entry hole being provided at the other end;

[0005] A material cabin, wherein the material cabin has a second cavity, the material cabin is fixedly connected to the operation cabin, the entry hole communicates with the second cavity and the first cavity, and the material cabin is movably provided with a sealed cabin door;

[0006] A lifting unit, wherein the lifting unit is movably connected to the operating cabin, and the lifting unit can extend the same or different lengths along the axial direction of the operating cabin to keep the operating cabin level;

[0007] An air pressure regulating unit, wherein the air pressure regulating unit can supply air to the material compartment and the operating compartment and maintain the air pressure in the material compartment and the operating compartment within a preset range.

[0008] In addition, the repair work cabin provided in the embodiment of the present application may also have the following additional technical features:

[0009] In an optional solution, the lifting unit includes a hydraulic support column and a power system;

[0010] There are multiple hydraulic support columns, which are arranged on the side walls of the operating cabin at intervals along the circumference of the operating cabin. The power system is powered by the multiple hydraulic support columns, and the power system is used to drive the multiple hydraulic support columns to extend and retract the same / different lengths along the axial direction of the operating cabin.

[0011] In an optional solution, the air pressure regulating unit includes an air pressure monitor, a pressure relief valve and a high-pressure air supply pipeline, and the material cabin is provided with a first installation channel, a second installation channel and a third installation channel for installing the air pressure monitor, the pressure relief valve and the high-pressure air supply pipeline;

[0012] When the value monitored by the air pressure monitor is higher than a preset value, the pressure relief valve relieves the pressure in the material compartment and the operating compartment.

[0013] In an optional solution, the repair work cabin further includes a counterweight platform, which is arranged outside the operation cabin and has a placement table capable of placing a counterweight block.

[0014] In an optional solution, at least one of the operation cabin, the material cabin and the counterweight platform is made of Q355R steel plate with a thickness of 1.5 to 2 mm, and the diameter of the entry hole is not less than 2 m.

[0015] In an optional solution, the sealed cabin door is opened inwardly, and the sealed cabin door includes a door steel plate and a rubber sealing ring, and the rubber sealing ring is arranged at the connection between the door steel plate and the material cabin.

[0016] In an optional solution, the sealed hatch is arranged on the side wall of the material compartment, and the repair work compartment has an underwater working state. In the underwater working state, the bottom of the sealed hatch is higher than the elevation of the external water level.

[0017] A second aspect of the present application provides a method for repairing an underwater structure in a shallow water area, wherein the repair method uses a working cabin to repair the underwater structure, and the working cabin is the repair working cabin in the first aspect of the embodiment. The repair method comprises the following steps:

[0018] The working cabin is hoisted to the designated position, the sealed cabin door is opened, the working cabin is lowered to the bottom and inverted above the working area, and the hydraulic support columns of the working cabin are adjusted until the entire working cabin is stably fixed above the base and is in a basically horizontal and stable state;

[0019] Install the ballast block, the weight of which is the buoyancy of the cabin when it is in working state;

[0020] Personnel wearing oxygen supply equipment enter the cargo hold, close the sealed hatch, and start supplying high-pressure air into the hold. The high-pressure gas squeezes the water out of the hold from the bottom until the water level drops to meet construction requirements.

[0021] When the staff completes the repair work, or when the personnel have worked safely under high pressure for a long time, the staff returns to the cargo cabin, slowly releases the air and pressure to normal atmospheric pressure, then opens the sealed cabin door to complete the repair task or the work task of this working period.

[0022] The beneficial effects of the embodiments of the present application are:

[0023] The embodiment of the present application repairs the underwater structure in the shallow water area through the repair work cabin. The lifting unit can make the operation cabin be stably arranged for use in different terrain environments. During the repair process, the air pressure in the operation cabin can be adjusted and monitored by the air pressure regulating unit to discharge the water in the operation cabin to meet the construction requirements, so as to carry out the construction. The entire repair work cabin and the repair method of the underwater structure in the shallow water area can create a dry land construction environment in a complex underwater environment, thereby solving the problem of dry land repair of underwater structures, new cofferdams and their anti-seepage to a certain extent.

[0024] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the structure of a repair work cabin provided in the present application in a specific embodiment.

[0026] Figure numerals: operation cabin 1, first cavity 11, opening 12, entry hole 13, material cabin 2, second cavity 21, sealed cabin door 22, first installation channel 23, second installation channel 24, third installation channel 25, hydraulic support column 3, counterweight platform 4, placement table 41.

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0028] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0029] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0030] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0031] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0032] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0033] like Figure 1 As shown, a first aspect of an embodiment of the present application provides a repair work cabin, which includes an operating cabin 1, a material cabin 2, a lifting unit and an air pressure regulating unit, wherein the operating cabin 1 has a first cavity 11, an opening 12 is provided at one end of the operating cabin 1 along the axial direction, and an entry hole 13 is provided at the other end, and the opening 12 and the entry hole 13 are respectively connected with the first cavity 11; the material cabin 2 has a second cavity 21, the material cabin 2 is fixedly connected to the operating cabin 1, the entry hole 13 connects the second cavity 21 and the first cavity 11, and the material cabin 2 is movably provided with a sealed cabin door 22; the lifting unit is movably connected to the operating cabin 1, and the lifting unit can extend the same / different lengths along the axial direction of the operating cabin 1 to keep the operating cabin 1 level; the air pressure regulating unit can supply air to the material cabin 2 and the operating cabin 1 and maintain the air pressure in the material cabin 2 and the operating cabin 1 within a preset range.

[0034] Specifically, in this embodiment, the operation cabin 1 and the material cabin 2 form a semi-enclosed cavity which is open at the bottom and sealed on all sides and at the top. The operation cabin 1 is arranged at the bottom with an open bottom, and the material cabin 2 is arranged above the operation cabin 1. The two are separated by an intermediate isolation plate, and an entry hole 13 is arranged on the intermediate isolation plate for personnel and equipment to enter the operation cabin 1.

[0035] In this embodiment, the underwater structure in the shallow water area is repaired by the repair work cabin. The lifting unit can make the operation cabin 1 be stably arranged in different terrain environments for use. During the repair process, the air pressure in the operation cabin 1 can be adjusted and monitored by the air pressure regulating unit so as to discharge the water in the operation cabin 1 to meet the construction requirements, so as to carry out the construction. The entire repair work cabin can create a dry land construction environment in a complex underwater environment, thereby solving the problem of dry land repair of underwater structures, new cofferdams and their anti-seepage to a certain extent.

[0036] like Figure 1 As shown, in a specific embodiment, the lifting unit includes a hydraulic support column 3 and a power system; there are multiple hydraulic support columns 3, and the multiple hydraulic support columns 3 are arranged at intervals along the circumference of the operating cabin 1 on the side wall of the operating cabin 1, and the power system is connected to the multiple hydraulic support columns 3, and the power system is used to drive the multiple hydraulic support columns 3 to extend and retract the same / different lengths along the axial direction of the operating cabin 1. Generally speaking, the number of hydraulic support columns 3 is 4 to 6 groups, and the hydraulic support columns 3 serve as support components for supporting and adjusting the working cabin.

[0037] like Figure 1 As shown, in a specific embodiment, the air pressure regulating unit includes an air pressure monitor, a pressure relief valve and a high-pressure air supply pipeline (not shown in the figure), and the material cabin 2 is provided with a first installation channel 23, a second installation channel 24 and a third installation channel 25 for installing the air pressure monitor, the pressure relief valve and the high-pressure air supply pipeline; when the value monitored by the air pressure monitor is higher than the preset value, the pressure relief valve relieves the pressure on the material cabin 2 and the operating cabin 1.

[0038] In this embodiment, the material cabin 2 is provided with a first installation channel 23, a second installation channel 24 and a third installation channel 25 leading to the outside, and each channel is connected to the corresponding equipment by a sealing structure capable of withstanding high-pressure gas. The function of the air pressure monitor is to monitor the internal air pressure, ensure that the manpower is in a relatively stable air pressure environment, and that the water level in the operating cabin 1 is balanced; the function of the pressure relief valve is to set a high-pressure upper limit value according to the work requirements, and when the internal air pressure is too high due to improper operation by the personnel, the pressure is relieved through the pressure relief valve to reduce the harm; and the main function of the high-pressure gas supply pipeline is to supply high-pressure gas to the working cabin, and the water in the working cabin is discharged from the working cabin through the high-pressure gas to expose the required working surface.

[0039] like Figure 1 As shown, in a specific embodiment, the repair work cabin also includes a counterweight platform 4, which is arranged outside the operating cabin 1, and the counterweight platform 4 has a placement table 41 capable of placing a counterweight block. In addition, at least one of the operating cabin 1, the material cabin 2 and the counterweight platform 4 is made of Q355R steel plate with a thickness of 1.5 to 2 mm, and the diameter of the entry hole 13 is not less than 2m to meet the entry of small construction equipment.

[0040] Specifically, the steel plate processing is divided into 5 parts: a cylindrical operating cabin 1, a cylindrical cargo cabin 2, an arc-shaped connecting plate between the operating cabin 1 and the cargo cabin 2, an intermediate isolation plate, a top cover plate, and a counterweight platform 4. The arc-shaped connecting plate between the operating cabin 1 and the cargo cabin 2 is formed by rolling the steel plate and then welding the butt joint. The intermediate isolation plate and the top cover plate are formed by cutting the steel plate and pre-reserving holes. Bevels are set between the above-mentioned components, and submerged arc welding is used to form the overall structure of the working cabin. Finally, the counterweight platform 4 is set, and the arc-shaped steel plate is used to splice and weld it in blocks at the bottom of the outer side of the operating cabin 1.

[0041] like Figure 1 As shown, in a specific embodiment, the sealed hatch 22 is opened inward, and the sealed hatch 22 includes a door steel plate and a rubber sealing ring, and the rubber sealing ring is arranged at the connection between the door steel plate and the material cabin 2. The sealed hatch 22 is arranged on the side wall of the material cabin 2 to facilitate entry and exit. The repair work cabin has an underwater working state. In the underwater working state, the bottom of the sealed hatch 22 is higher than the elevation of the external water level to prevent water from penetrating into the sealed cabin.

[0042] A second aspect of the present application provides a method for repairing an underwater structure in a shallow water area. The repair method uses a working cabin to repair the underwater structure. The working cabin is the repair working cabin in the first aspect of the embodiment. The repair method includes the following steps:

[0043] The working cabin is hoisted to the designated position, the sealed cabin door 22 is opened, the working cabin is dropped to the bottom and inverted above the working area, and the hydraulic support column 3 of the working cabin is adjusted until the entire working cabin is stably fixed above the base and is in a basically horizontal and stable state;

[0044] Install the ballast block. The weight of the ballast block is the buoyancy of the cabin when it is in working state. The weight of the cabin itself provides stabilizing force for the cabin to be stable in the water.

[0045] After the equipment is fixed, the personnel wear oxygen supply equipment and enter the material cabin 2, close the sealed cabin door 22, and start to supply high-pressure gas to the cabin. The water in the cabin is squeezed out from the bottom by the high-pressure gas until the water level drops to meet the construction requirements;

[0046] When the staff completes the repair work, or when the staff have worked safely under high pressure for a long time, the staff returns to the cargo cabin 2, slowly deflates the air (to prevent decompression sickness) to normal atmospheric pressure, and then opens the sealed cabin door 22 to complete the repair task or the work task of this working period.

[0047] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A repair work cabin, characterized in that: include: An operating cabin, wherein the operating cabin has a first cavity, wherein one end of the operating cabin along the axial direction is provided with an opening, and the other end is provided with an entry hole; A material cabin, wherein the material cabin has a second cavity, the material cabin is fixedly connected to the operation cabin, the entry hole communicates with the second cavity and the first cavity, and the material cabin is movably provided with a sealed cabin door; A lifting unit, wherein the lifting unit is movably connected to the operating cabin, and the lifting unit can extend the same or different lengths along the axial direction of the operating cabin to keep the operating cabin level; An air pressure regulating unit, wherein the air pressure regulating unit can supply air to the material compartment and the operating compartment and maintain the air pressure in the material compartment and the operating compartment within a preset range.

2. The repair work chamber according to claim 1, characterized in that: The lifting unit includes a hydraulic support column and a power system; There are multiple hydraulic support columns, which are arranged on the side walls of the operating cabin at intervals along the circumference of the operating cabin. The power system is powered by the multiple hydraulic support columns, and the power system is used to drive the multiple hydraulic support columns to extend and retract the same / different lengths along the axial direction of the operating cabin.

3. The repair work chamber according to claim 1 or 2, characterized in that: The air pressure regulating unit includes an air pressure monitor, a pressure relief valve and a high-pressure air supply pipeline, and the material cabin is provided with a first installation channel, a second installation channel and a third installation channel for installing the air pressure monitor, the pressure relief valve and the high-pressure air supply pipeline; When the value monitored by the air pressure monitor is higher than a preset value, the pressure relief valve relieves the pressure in the material compartment and the operating compartment.

4. The repair work chamber according to claim 3, characterized in that: It also includes a counterweight platform, which is arranged outside the operating cabin and has a placement table for placing counterweight blocks.

5. The repair work chamber according to claim 4, characterized in that: At least one of the operation cabin, the material cabin and the counterweight platform is made of Q355R steel plate with a thickness of 1.5 to 2 mm, and the diameter of the entry hole is not less than 2 m.

6. The repair work chamber according to claim 4, characterized in that: The sealed cabin door is inwardly opened, and comprises a door body steel plate and a rubber sealing ring, wherein the rubber sealing ring is arranged at the connection between the door body steel plate and the material cabin.

7. The repair work cabin according to any one of claims 1-2 or 4-6, characterized in that: The sealed hatch is arranged on the side wall of the material cabin, and the repair work cabin has an underwater working state. In the underwater working state, the bottom of the sealed hatch is higher than the elevation of the external water level.

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