Installation method of lower slope insulation board of fuel tank

Abstract

The present application discloses a method for installing an insulating plate on the lower slope of a fuel tank, which relates to the field of shipbuilding technology. The method includes providing a first electric hoist, a second electric hoist and a third electric hoist, arranging them in sequence and fixing them on a scaffolding platform above the lower slope of the fuel tank; providing a first lifting tool, a lifting tool and a third lifting tool, connecting them with the first electric hoist, the second electric hoist and the third electric hoist in sequence by steel wire ropes; using the second electric hoist and the lifting tool to lift the insulating plate to be installed to a preset height, and at the same time tightening the steel wire ropes of the first electric hoist and the third electric hoist corresponding to the first lifting tool and the third lifting tool, turning the insulating plate to be installed 90° so that its installation surface faces upward; using the first electric hoist and the third electric hoist to adjust the insulating plate to be installed to the preset installation position of the lower slope of the fuel tank for installation. The present application can effectively improve the installation efficiency and quality of the insulating plate on the lower slope of the fuel tank.

Description

Technical Field

[0001] The present application relates to the field of shipbuilding technology, and in particular to a method for installing a lower slope insulation board of a fuel tank. Background Art

[0002] The insulation layer inside the MARKⅢ fuel tank is a prefabricated insulation block. After being produced by the supporting manufacturer, it is installed on the corresponding position of the bulkhead and fixed with nuts to complete the installation of the insulation board.

[0003] According to GTT's recommendations, insulation panels in special areas need to be installed manually or with a manipulator. In actual installation, manual installation is less efficient, requires more personnel, and has a higher risk of installation operations; when using a manipulator for installation, the center of gravity of the insulation panel is difficult to control, and the manipulator's range of operation and flexibility in local space are limited, making adjustment more difficult.

[0004] Therefore, how to provide a method for installing the lower slope insulation board of the fuel tank to reduce the demand for operators and improve the installation efficiency and quality of the insulation board has become an urgent problem to be solved in this field. Summary of the invention

[0005] The purpose of the present application is to provide a method for installing a lower slope insulation board of a fuel tank, which can reduce the number of operators required and the risks of personnel installation operations during the installation of the insulation board, and improve the installation efficiency and quality of the edge board.

[0006] In a first aspect, an embodiment of the present application provides a method for installing a lower slope insulation plate of a fuel tank, comprising:

[0007] Provide the first electric hoist, the second electric hoist and the third electric hoist, and arrange and fix them in sequence on the scaffolding platform above the lower slope of the fuel tank;

[0008] A first lifting fixture, a second lifting fixture and a third lifting fixture are provided, wherein the first lifting fixture and the third lifting fixture are respectively installed at two ends of the installation surface of the insulating board to be installed, and the second lifting fixture is installed in the middle of the installation surface of the insulating board to be installed, wherein the arrangement order of the first electric hoist, the second electric hoist and the third electric hoist corresponds to the arrangement order of the first lifting fixture, the second lifting fixture and the third lifting fixture, and they are correspondingly connected by steel wire ropes;

[0009] Before the first lifting tool, the third lifting tool and the second lifting tool are installed on the installation surface of the insulating board to be installed, the method further includes:

[0010] Providing a transport vehicle, placing the insulation board to be installed on its side on the transport vehicle, and using the transport vehicle to transport the insulation board to be installed to a preset lifting position;

[0011] The insulating board to be installed is lifted to a preset height by using the second electric hoist and the second lifting fixture, and the steel wire ropes of the first electric hoist and the third electric hoist corresponding to the first lifting fixture and the third lifting fixture are tightened at the same time; the steel wire rope of the second electric hoist corresponding to the second lifting fixture is loosened, and the insulating board to be installed is turned over 90 degrees under the traction of the first electric hoist and the third electric hoist so that the installation surface of the insulating board to be installed faces upward, and then the second lifting fixture and the second electric hoist are removed;

[0012] The first electric hoist and the third electric hoist are used to adjust the position of the insulating plate to be installed, and the insulating plate to be installed is moved to the preset installation position of the lower slope of the fuel tank; the insulating plate to be installed is installed on the lower slope of the fuel tank.

[0013] In a possible implementation manner, the step of adjusting the position of the insulating board to be installed by using the first electric hoist and the third electric hoist specifically includes:

[0014] Tighten the first electric hoist to raise one end of the first lifting tool for the insulation board to be installed;

[0015] Release the third electric hoist to lower one end of the third lifting tool for the insulation board to be installed;

[0016] Adjust the first electric hoist and the third electric hoist in sequence to make the insulation board to be installed parallel to the lower slope of the fuel tank and close to the preset installation position.

[0017] In a possible implementation scheme, a plurality of stud holes are set through the insulating plate to be installed, and studs adapted to the stud holes of the insulating plate to be installed are set on the lower inclined surface of the fuel tank. When the insulating plate to be installed is moved to a preset installation position of the lower inclined surface of the fuel tank, the insulating plate to be installed is sleeved on the studs on the lower inclined surface of the fuel tank through the stud holes to complete preliminary fixation, and the studs pass through the stud holes and protrude from the installation surface of the insulating plate to be installed.

[0018] In a possible embodiment, the process of installing the insulating panel to be installed on the lower slope of the fuel tank includes:

[0019] Providing a distance-keeping tool, and installing the distance-keeping tool between the insulation board to be installed and the adjacent insulation board already installed, so as to maintain a preset distance between the insulation board to be installed and the adjacent insulation board already installed;

[0020] According to the process sequence requirements, the insulating plate to be installed is fixed on the lower slope of the fuel tank with nuts; the nuts are sleeved on the studs on the lower slope of the fuel tank;

[0021] A plurality of wedge blocks are provided and inserted into the installation interval between the insulation board to be installed and the adjacent insulation board already installed, so as to keep the installation interval stable.

[0022] In a possible implementation scheme, the process of fixing the insulating plate to be installed on the lower slope of the fuel tank with nuts also includes:

[0023] Measure and adjust the flatness of the insulation board to be installed on the lower slope of the fuel tank at any time;

[0024] Measure and adjust the installation distance between the insulation board to be installed and the adjacent installed insulation board at any time.

[0025] In a possible implementation scheme, before the step of fixing the insulating plate to be installed on the lower slope of the fuel tank with nuts and after the step of installing the distance maintaining fixture between the insulating plate to be installed and the adjacent installed insulating plate, the first lifting fixture, the third lifting fixture and their corresponding first electric hoist and third electric hoist are removed.

[0026] In a possible implementation manner, after the step of inserting a plurality of wedge-shaped blocks into the installation spacing between the insulation board to be installed and the adjacent insulation board that has been installed, the distance maintaining tool is removed.

[0027] In a possible implementation manner, an installation spacing of 30±3 mm is maintained between the insulation board to be installed and the adjacent installed insulation board.

[0028] In a possible implementation manner, before the step of transporting the insulation board to be installed to a preset lifting position by a transport vehicle, epoxy coating is preliminarily performed on the insulation board.

[0029] Compared with the prior art, this application has at least the following beneficial effects:

[0030] The present application provides a method for installing an insulating plate on the lower slope of a fuel tank. The method utilizes a first electric hoist, a second electric hoist, and a third electric hoist and a first lifting tool, a second lifting tool, and a third lifting tool corresponding thereto in sequence to lift and flip the insulating plate to be installed, and by adjusting the first electric hoist and the third electric hoist, the insulating plate to be installed is moved to a preset installation position for installation, thereby reducing the demand for installation operators and effectively improving the installation efficiency and quality of the insulating plate on the lower slope of the fuel tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 It is a schematic diagram showing a state where an insulating board to be installed is hoisted on a scaffolding platform according to an embodiment of the present application;

[0033] Figure 2 This is a schematic diagram of a state where an insulating board to be installed is rotated 90° and turned over according to an embodiment of the present application;

[0034] Figure 3 It is a schematic diagram of a process of hoisting an insulating board to be installed to a preset installation position according to an embodiment of the present application;

[0035] Figure 4 It is a schematic diagram showing a method of hoisting an insulating board to be installed to a preset installation position according to an embodiment of the present application;

[0036] Figure 5 It is a schematic diagram of the installation state of an insulation board to be installed according to an embodiment of the present application.

[0037] Illustration Description:

[0038] 10 Insulation board to be installed; 110 First lifting tool; 120 Second lifting tool; 130 Third lifting tool; 140 Distance maintaining tool; 20 First electric hoist; 30 Second electric hoist; 40 Third electric hoist; 50 Scaffolding platform; 60 Steel wire rope; 70 Installed insulation board; 80 Transport vehicle; 90 Wedge block. DETAILED DESCRIPTION

[0039] The technical solutions of the specific implementation methods of the present application are further described in detail below in conjunction with the accompanying drawings. These implementation methods are only used to illustrate the present application, but not to limit the present application.

[0040] In the description of this application, it should be noted that the terms "upper", "lower", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0041] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] According to one aspect of the present application, a method for installing a lower slope insulation board of a fuel tank is provided, the method comprising the following steps:

[0043] S1, provide a first electric hoist 20, a second electric hoist 30, and a third electric hoist 40, and arrange them in sequence and fix them on a scaffolding platform 50 above the lower slope of the fuel tank.

[0044] In one embodiment, see Figure 1 The installation of the first electric hoist 20, the second electric hoist 30, and the third electric hoist 40 includes the following steps:

[0045] A construction scaffolding platform 50 is built in the insulation board installation area to meet the needs of hoisting the insulation board 10 to be installed and standing and walking of operators.

[0046] On the scaffolding platform 50 , suitable installation positions are selected and fixed for the first electric hoist 20 , the second electric hoist 30 and the third electric hoist 40 to ensure that the hoisting angle and hoisting height of the insulating board 10 to be installed can meet the hoisting requirements.

[0047] The first electric hoist 20, the second electric hoist 30 and the third electric hoist 40 are powered on for hoisting and debugging to confirm that they can work normally.

[0048] Preferably, safety railings and fall arresters are provided at the edge of the working area of ​​the scaffolding platform 50 to prevent operators from falling and ensure the safety of construction workers.

[0049] S2, provide a first lifting fixture 110, a second lifting fixture 120 and a third lifting fixture 130, the first lifting fixture 110 and the third lifting fixture 130 are respectively installed at the two ends of the installation surface of the insulating plate 10 to be installed, and the second lifting fixture 120 is installed in the middle of the installation surface of the insulating plate 10 to be installed, wherein the arrangement order of the first electric hoist 20, the second electric hoist 30, and the third electric hoist 40 corresponds to the arrangement order of the first lifting fixture 110, the second lifting fixture 120 and the third lifting fixture 130, and are connected correspondingly through the wire rope 60. The second electric hoist 30 is connected to the second lifting fixture 120, and is used to control the vertical rise or fall of the insulating plate 10 to be installed. The first electric hoist 20 and the third electric hoist 40 are used to pull the two ends of the insulating plate 10 to be installed and control it to move toward the lower slope of the fuel tank.

[0050] In one embodiment, see Figure 1 Before the first lifting fixture 110, the third lifting fixture 130 and the second lifting fixture 120 are installed on the installation surface of the insulating board 10 to be installed, the step further includes:

[0051] A transport vehicle 80 is provided, and the insulating panel 10 to be installed is placed on its side on the transport vehicle 80, and the insulating panel 10 to be installed is transported to a preset lifting position by the transport vehicle 80. The insulating panel 10 to be installed is placed on its side on the transport vehicle 80 to facilitate its transportation on the scaffolding platform 50, and the use of the transport vehicle 80 can save manpower and reduce the safety risks of manual handling.

[0052] Preferably, before the step of transporting the insulating panel 10 to be installed to the preset lifting position by the transport vehicle 80 , epoxy coating is preliminarily completed on the insulating panel 10 to be installed.

[0053] S3, see Figure 2 , use the second electric hoist 30 and the second lifting fixture 120 to lift the insulating board 10 to be installed to a preset height, and at the same time tighten the wire rope 60 of the first electric hoist 20 and the third electric hoist 40 corresponding to the first lifting fixture 110 and the third lifting fixture 130, and loosen the wire rope 60 of the second electric hoist 30 corresponding to the second lifting fixture 120. Under the traction of the first electric hoist 20 and the third electric hoist 40, the insulating board 10 to be installed will change from descending to sideways flipping. With the assistance of the operator, the installation surface of the insulating board 10 to be installed is facing upward. After completing the 90° flip, the second lifting fixture 120 and the second electric hoist 30 are removed.

[0054] S4, using the first electric hoist 20 and the third electric hoist 40 to adjust the position of the insulating plate 10 to be installed, and move the insulating plate 10 to be installed to the preset installation position of the lower slope of the fuel tank; install the insulating plate 10 to be installed on the lower slope of the fuel tank.

[0055] In one embodiment, see Figure 3 The steps of adjusting the position of the insulating board 10 to be installed by using the first electric hoist 20 and the third electric hoist 40 include:

[0056] The first electric hoist 20 is tightened to raise the end of the insulating board 10 to be installed connected to the first lifting tool 110 .

[0057] The third electric hoist 40 is released to lower one end of the insulating panel 10 to be installed connected to the third lifting tool 130 .

[0058] The first electric hoist 20 and the third electric hoist 40 are adjusted in sequence to make the insulating plate 10 to be installed parallel to the lower slope of the fuel tank and close to the preset installation position.

[0059] In one embodiment, see Figure 4A plurality of stud holes are set through the insulating plate 10 to be installed, and studs adapted to the stud holes of the insulating plate 10 to be installed are set on the lower slope of the fuel tank. When the insulating plate 10 to be installed is moved to the preset installation position of the lower slope of the fuel tank, the insulating plate 10 to be installed is sleeved on the studs on the lower slope of the fuel tank through the stud holes to complete the initial fixation.

[0060] Preferably, when the insulating plate 10 to be installed is close to the preset installation position of the lower slope of the fuel tank, the operator can manually assist in aligning the stud holes on the insulating plate 10 to be installed with the studs on the lower slope of the fuel tank, so that the stud holes of the insulating plate 10 to be installed are sleeved on the studs on the lower slope of the fuel tank to complete the initial fixation, thereby improving the installation efficiency.

[0061] Preferably, the studs pass through the stud holes and protrude from the mounting surface of the insulating plate 10 to be installed, so that the insulating plate 10 to be installed is fastened on the lower inclined surface of the fuel tank. Specifically, a sleeve can be used to temporarily fix the studs protruding from the mounting surface of the insulating plate 10 to be installed to prevent the insulating plate 10 to be installed from loosening on the lower inclined surface of the fuel tank.

[0062] In one embodiment, see Figure 5 The process of installing the insulating plate 10 to be installed on the lower slope of the fuel tank includes:

[0063] A distance-keeping tool 140 is provided and installed between the insulation board 10 to be installed and the adjacent insulation board 70 that has been installed, so that a preset distance is maintained between the insulation board 10 to be installed and the adjacent insulation board 70 that has been installed.

[0064] According to the process sequence requirements, the insulating plate 10 to be installed is fixed on the lower inclined surface of the fuel tank with nuts; the nuts are sleeved on the studs on the lower inclined surface of the fuel tank.

[0065] A plurality of wedge blocks 90 are provided, and the plurality of wedge blocks 90 are inserted into the installation spacing between the insulation board 10 to be installed and the adjacent installed insulation board 70, so that the installation spacing remains stable. The wedge blocks 90 can be made of wood material or other materials such as resin. In this embodiment, wood material is selected as the wedge blocks 90 because it is inexpensive and easy to process.

[0066] Preferably, a torque wrench is used to tighten the nut and the stud to fix the insulating plate 10 to be installed. The torque wrench has been measured and calibrated before use to ensure that the torque is accurate.

[0067] Preferably, after the step of inserting a plurality of wedge blocks 90 into the installation spacing between the insulation board 10 to be installed and the adjacent insulation board 70 that has been installed, the distance maintaining tool 140 is removed.

[0068] In one embodiment, the process of fixing the insulating plate 10 to be installed on the lower slope of the fuel tank with nuts further includes:

[0069] The flatness of the insulating plate 10 to be installed on the lower slope of the fuel tank is measured and adjusted at any time. The overall flatness of the insulating plate 10 to be installed is preferably controlled within ±0.5 mm.

[0070] The installation spacing between the insulating plate 10 to be installed and the adjacent installed insulating plate 70 is measured and adjusted at any time. The installation spacing between the insulating plate 10 to be installed and the adjacent installed insulating plate 70 is preferably 30±3 mm.

[0071] In one embodiment, see Figure 5 Before the step of fixing the insulating plate 10 to be installed on the lower slope of the fuel tank with nuts, after the step of installing the distance maintaining fixture 140 between the insulating plate 10 to be installed and the adjacent installed insulating plate 70, the first lifting fixture 110, the third lifting fixture 130 and the corresponding first electric hoist 20 and third electric hoist 40 are removed.

[0072] It can be seen from the above technical scheme that the method for installing the lower slope insulation plate of the fuel tank provided in the present application utilizes the first electric hoist 20, the second electric hoist 30 and the third electric hoist 40 and the corresponding first lifting fixture 110, the second lifting fixture 120 and the third lifting fixture 130 in sequence to lift and flip the insulation plate 10 to be installed, and by adjusting the first electric hoist 20 and the third electric hoist 40, the insulation plate 10 to be installed is moved to the preset installation position of the lower slope of the fuel tank for installation, thereby reducing the personnel requirements for installation operations and effectively improving the installation efficiency and quality of the insulation plate of the lower slope of the fuel tank.

[0073] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present application. These improvements and substitutions should also be regarded as the scope of protection of the present application.

Claims

1. A method for installing a lower slope insulation board of a fuel tank, characterized in that: include: Provide the first electric hoist, the second electric hoist and the third electric hoist, and arrange and fix them in sequence on the scaffolding platform above the lower slope of the fuel tank; A first hoisting tool, a second hoisting tool and a third hoisting tool are provided, wherein the first hoisting tool and the third hoisting tool are respectively installed at two ends of the installation surface of the insulating board to be installed, and the second hoisting tool is installed in the middle of the installation surface of the insulating board to be installed, wherein the arrangement order of the first electric hoist, the second electric hoist and the third electric hoist corresponds to the arrangement order of the first hoisting tool, the second hoisting tool and the third hoisting tool, and are connected correspondingly by steel wire ropes; Before the first lifting tool, the third lifting tool and the second lifting tool are installed on the installation surface of the insulating board to be installed, the method further includes: Providing a transport vehicle, placing the insulation board to be installed on its side on the transport vehicle, and transporting the insulation board to be installed to a preset lifting position by using the transport vehicle; and, The insulating board to be installed is lifted to a preset height by using the second electric hoist and the second lifting fixture, and the steel wire ropes of the first electric hoist and the third electric hoist corresponding to the first lifting fixture and the third lifting fixture are tightened at the same time; the steel wire rope of the second electric hoist corresponding to the second lifting fixture is loosened, and the insulating board to be installed is turned over 90 degrees under the traction of the first electric hoist and the third electric hoist so that the installation surface of the insulating board to be installed faces upward, and then the second lifting fixture and the second electric hoist are removed; The first electric hoist and the third electric hoist are used to adjust the position of the insulating plate to be installed, and the insulating plate to be installed is moved to a preset installation position on the lower slope of the fuel tank; and the insulating plate to be installed is installed on the lower slope of the fuel tank.

2. The method for installing an insulation board according to claim 1, characterized in that: The step of adjusting the position of the insulating board to be installed by using the first electric hoist and the third electric hoist specifically includes: Tighten the first electric hoist to raise one end of the first lifting tool for the insulation board to be installed; Release the third electric hoist to lower one end of the third lifting tool for the insulation board to be installed; The first electric hoist and the third electric hoist are adjusted in sequence to make the insulating plate to be installed parallel to the lower slope of the fuel tank and close to the preset installation position.

3. The method for installing an insulation board according to claim 1, characterized in that: A plurality of stud holes are arranged through the insulating plate to be installed, and studs adapted to the stud holes of the insulating plate to be installed are arranged on the lower inclined surface of the fuel tank. When the insulating plate to be installed is moved to a preset installation position of the lower inclined surface of the fuel tank, the insulating plate to be installed is sleeved on the studs on the lower inclined surface of the fuel tank through the stud holes to complete preliminary fixation, and the studs pass through the stud holes and protrude from the installation surface of the insulating plate to be installed.

4. The method for installing an insulating board according to any one of claims 1 to 3, characterized in that: The process of installing the insulating panel to be installed on the lower slope of the fuel tank includes: Providing a distance-keeping tool, and installing the distance-keeping tool between the insulation board to be installed and an adjacent insulation board that has been installed, so that a preset distance is maintained between the insulation board to be installed and the adjacent insulation board that has been installed; According to the process sequence requirements, the insulating plate to be installed is fixed on the lower inclined surface of the fuel tank with nuts; the nuts are sleeved on the studs on the lower inclined surface of the fuel tank; A plurality of wedge blocks are provided, and the plurality of wedge blocks are inserted into the installation spacing between the insulation board to be installed and the adjacent insulation board that has been installed, so that the installation spacing remains stable.

5. The method for installing an insulation board according to claim 4, characterized in that: The process of fixing the insulating plate to be installed on the lower slope of the fuel tank with nuts also includes: Measure and adjust the flatness of the insulating board to be installed on the lower slope of the fuel tank at any time; The installation distance between the insulation board to be installed and the adjacent installed insulation board is measured and adjusted at any time.

6. The method for installing an insulation board according to claim 4, characterized in that: Before the step of fixing the insulating plate to be installed on the lower slope of the fuel tank with nuts and after the step of installing the distance maintaining fixture between the insulating plate to be installed and the adjacent installed insulating plate, the first lifting fixture, the third lifting fixture and their corresponding first electric hoist and third electric hoist are removed.

7. The method for installing an insulation board according to claim 4, characterized in that: After the step of inserting the plurality of wedge-shaped blocks into the installation spacing between the insulation board to be installed and the adjacent installed insulation board, the distance maintaining tooling is removed.

8. The method for installing an insulation board according to claim 5, characterized in that: The insulating board to be installed maintains an installation spacing of 30±3 mm with respect to the adjacent installed insulating board.

9. The method for installing an insulation board according to claim 1, characterized in that: Before the step of transporting the insulating board to be installed to the preset lifting position by using a transport vehicle, epoxy coating is preliminarily performed on the insulating board.

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