Method for installing sub-layer sealing plate of thin film tank

Abstract

The invention discloses a method for installing a sub-layer sealing plate of a thin film can, which specifically comprises the following steps: S1, checking the shape and size of the sub-layer sealing plate, and installing the sub-layer sealing plate after checking that the sub-layer sealing plate meets the requirement; s2, the secondary-layer sealing plate is fixed to the concrete tank wall embedded part through locking pliers, allowance of the secondary-layer sealing plate is worked out, and the worked allowance is cut; s3, one end of a tensioning tool is fixed to a stud of the concrete tank wall, the other end of the tensioning tool is pressed on the secondary-layer sealing plate, and the height and flatness of the secondary-layer sealing plate are adjusted through the tensioning tool; s4, supporting tools are installed at the two ends of the secondary-layer sealing plate correspondingly, and the height of the secondary-layer sealing plate is adjusted through the supporting tools; and S5, the tensioning tool and the supporting tool are adjusted, and installation of the secondary-layer sealing plate is completed. The tensioning tool and the supporting tool are used for supporting and adjusting the middle and the two ends of the secondary-layer sealing plate at the same time; and the installation efficiency of the film tank sub-layer sealing plate is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of shipbuilding, and in particular relates to a method for installing a secondary sealing plate of a membrane tank. Background Art

[0002] As the name implies, the LNG of the membrane tank is sealed in a shielding layer composed of a membrane, and the main membrane in direct contact with the LNG is the main shielding layer of the enclosure system. It is welded on site by prefabricated standard parts of 1.2mm thick 304L stainless steel, also known as corrugated plate. The secondary layer of the membrane tank below 5 meters adopts a double-layer design, consisting of a layer of shielding and a layer of main shielding, while the one above 5 meters adopts a single-layer main shielding. The secondary sealing plate is located at 5 meters of the membrane tank, which is used to close the space between the secondary shielding and the tank wall to prevent liquefied natural gas from leaking to the tank wall, so it is extremely important. Since only the middle of the secondary sealing plate is fixed on the embedded channel steel of the tank wall, and both ends are free ends, during the installation process, it is necessary to ensure the flatness of the left and right sides, and the height between the upper and lower parts and the module, so the installation is extremely difficult. Since both ends of the design are free edges, the installation is difficult, and its flatness affects the adhesion effect of the secondary shielding. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies existing in the above-mentioned prior art and to provide a method for installing the secondary sealing plate of a film tank. The present invention supports and adjusts the middle and both ends of the secondary sealing plate at the same time through tensioning tooling and supporting tooling; it can improve the installation efficiency of the secondary sealing plate of the film tank, shorten the construction time, improve the construction efficiency, and provide a basic guarantee for the adhesion of the next sub-shielding.

[0004] In order to achieve the above invention purpose, the technical solution provided by the present invention is as follows:

[0005] A method for installing a secondary sealing plate of a film tank, the method specifically comprising the following steps:

[0006] S1, before installing the secondary sealing board, check the shape and size of the secondary sealing board, and install the secondary sealing board after checking that it meets the requirements;

[0007] S2, using a locking pliers to fix the secondary sealing plate on the embedded part of the concrete tank wall, fixing the middle position of the secondary sealing plate on the embedded part of the concrete tank wall with the locking pliers, marking the allowance of the secondary sealing plate, and cutting the marked allowance;

[0008] S3, fix one end of the tensioning tool to the stud of the concrete tank wall, press the other end of the tensioning tool on the secondary sealing plate, and adjust the height and flatness of the secondary sealing plate by the tensioning tool;

[0009] S4, respectively install the supporting fixtures at both ends of the secondary sealing plate, support the sealing plate at the lower end of the secondary sealing plate, and adjust the height of the secondary sealing plate by the supporting fixtures;

[0010] S5, adjust the tensioning fixture and the supporting fixture respectively, and use an angle ruler to measure the angle, flatness and height of the secondary sealing plate. After the measurement is completed, spot weld the arc-inducing plates in the middle position of the secondary sealing plate and the two wing plates, and then perform intermittent welding. After welding is completed, remove the tensioning fixture and the supporting fixture to complete the installation of the secondary sealing plate.

[0011] Furthermore, the shape and size of the secondary sealing board include the angle, size and flatness of the secondary sealing board.

[0012] Furthermore, the tensioning tooling includes a fixing module and an adjusting module, the fixing module includes a fixing rod and a supporting rod, one end of the fixing rod is vertically connected and fixed to the supporting rod, the fixing rod is cylindrical as a whole, a plurality of bolt holes are provided on the fixing rod, the fixing rod is fixed to the embedded parts of the concrete tank wall by bolts, the supporting rod is a square rod, one end of the supporting rod is connected to the fixing rod, and the other end of the supporting rod is connected to the adjusting module.

[0013] Furthermore, the adjustment module comprises a pressure rod, a rotary handle and a screw rod, the two ends of the screw rod are respectively provided with a pressure rod and a rotary handle, the rotary handle is fixedly connected to the screw rod, and the pressure rod is threadedly connected to the screw rod.

[0014] Furthermore, the installation of the tensioning tool is specifically as follows: the fixing rod is fixed to the embedded parts of the concrete tank wall by bolts through the bolt holes, and at the same time the support rod is located above the secondary sealing plate, the pressure rod in the adjustment module is connected to the upper surface of the secondary sealing plate, and the pressure of the pressure rod on the secondary sealing plate is adjusted by turning the handle; two tensioning toolings are arranged in the middle of the secondary sealing plate.

[0015] Furthermore, the supporting tooling includes a supporting plate and an intermediate adjusting rod, support plates are respectively provided at both ends of the intermediate adjusting rod, external threads are respectively provided at both ends of the intermediate adjusting rod, the external threads at both ends of the intermediate adjusting rod are in opposite directions, an internal thread is provided in the middle of the supporting plate, and both ends of the intermediate adjusting rod are respectively threadedly connected with the supporting plate; when the supporting tooling is supported on the secondary layer sealing plate, the height and flatness of the two ends of the secondary layer sealing plate are adjusted by screwing the intermediate adjusting rod.

[0016] Based on the above technical solution, the method for installing the secondary sealing plate of a film tank in the present invention has achieved the following technical advantages through practical application:

[0017] 1. The present invention provides a method for installing a secondary sealing plate of a film tank, which supports and adjusts the middle and both ends of the secondary sealing plate at the same time by means of a tensioning tool and a supporting tool; it can improve the installation efficiency of the secondary sealing plate of the film tank, shorten the construction time, improve the construction efficiency, and provide a basic guarantee for the adhesion of the next sub-shielding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a structural diagram of a tensioning tool used in a method for installing a secondary sealing plate of a film tank.

[0019] Figure 2 The present invention is a structural diagram of a supporting tool used in a method for installing a secondary sealing plate of a film tank. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific examples shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0021] like Figure 1 and Figure 2 As shown, the present invention belongs to a method for installing a secondary sealing plate of a film tank, and the method specifically comprises the following steps:

[0022] S1, before installing the secondary sealing board, check the shape and size of the secondary sealing board, and install the secondary sealing board after checking that it meets the requirements;

[0023] S2, using a locking pliers to fix the secondary sealing plate on the embedded part of the concrete tank wall, fixing the middle position of the secondary sealing plate on the embedded part of the concrete tank wall with the locking pliers, marking the allowance of the secondary sealing plate, and cutting the marked allowance;

[0024] S3, fix one end of the tensioning tool to the stud of the concrete tank wall, press the other end of the tensioning tool on the secondary sealing plate, and adjust the height and flatness of the secondary sealing plate by the tensioning tool;

[0025] S4, respectively install the supporting fixtures at both ends of the secondary sealing plate, support the sealing plate at the lower end of the secondary sealing plate, and adjust the height of the secondary sealing plate by the supporting fixtures;

[0026] S5, adjust the tensioning fixture and the supporting fixture respectively, and use an angle ruler to measure the angle, flatness and height of the secondary sealing plate. After the measurement is completed, spot weld the arc-inducing plates in the middle position of the secondary sealing plate and the two wing plates, and then perform intermittent welding. After welding is completed, remove the tensioning fixture and the supporting fixture to complete the installation of the secondary sealing plate.

[0027] The middle and both ends of the secondary sealing plate are supported and adjusted at the same time by means of the tensioning tooling and the supporting tooling; this can improve the installation efficiency of the secondary sealing plate of the membrane tank, shorten the construction time, improve the construction efficiency, and provide a basic guarantee for the adhesion of the next secondary shielding.

[0028] The shape and size of the secondary sealing plate include the angle, size and flatness of the secondary sealing plate.

[0029] The tensioning tooling includes a fixing module and an adjusting module, the fixing module includes a fixing rod 1 and a supporting rod 2, one end of the fixing rod 1 is vertically connected and fixed to the supporting rod 2, the fixing rod 1 is cylindrical as a whole, a plurality of bolt holes are opened on the fixing rod 1, the fixing rod 1 is fixed to the embedded parts of the concrete tank wall by bolts, the supporting rod 2 is a square rod, one end of the supporting rod 2 is connected to the fixing rod 1, and the other end of the supporting rod 2 is connected to the adjusting module.

[0030] The adjustment module includes a pressure rod 33, a rotary handle 31 and a screw rod 32. The two ends of the screw rod 32 are respectively provided with a pressure rod 33 and a rotary handle 31. The rotary handle 31 is fixedly connected to the screw rod 32, and the pressure rod 33 is threadedly connected to the screw rod 32.

[0031] The installation of the tensioning tool is specifically as follows: the fixing rod 1 is fixed to the embedded parts of the concrete tank wall by bolts through the bolt holes, and at the same time the support rod 2 is located above the secondary sealing plate, the pressure rod 33 in the adjustment module is connected to the upper surface of the secondary sealing plate, and the pressure of the pressure rod 33 on the secondary sealing plate is adjusted by screwing the handle 31; two tensioning tools are arranged in the middle of the secondary sealing plate.

[0032] The supporting tooling includes a supporting plate 5 and an intermediate adjusting rod 4, wherein the supporting plates 5 are respectively provided at both ends of the intermediate adjusting rod 4, and external threads are respectively provided at both ends of the intermediate adjusting rod 4, and the external threads at both ends of the intermediate adjusting rod 4 are in opposite directions, and an internal thread is provided in the middle of the supporting plate 5, and the two ends of the intermediate adjusting rod 4 are respectively threadedly connected with the supporting plate 5; when the supporting tooling is supported on the secondary sealing plate, the height and flatness of the two ends of the secondary sealing plate are adjusted by screwing the intermediate adjusting rod 4.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A method for installing a secondary sealing plate of a film tank, characterized in that: The method specifically comprises the following steps: S1, before installing the secondary sealing board, check the shape and size of the secondary sealing board, and install the secondary sealing board after checking that it meets the requirements; S2, using a locking pliers to fix the secondary sealing plate on the embedded part of the concrete tank wall, fixing the middle position of the secondary sealing plate on the embedded part of the concrete tank wall with the locking pliers, marking the allowance of the secondary sealing plate, and cutting the marked allowance; S3, fix one end of the tensioning tool to the stud of the concrete tank wall, press the other end of the tensioning tool on the secondary sealing plate, and adjust the height and flatness of the secondary sealing plate by the tensioning tool; S4, respectively installing the supporting fixtures at both ends of the secondary sealing plate, the supporting sealing plate is supported at the lower end of the secondary sealing plate, and the height of the secondary sealing plate is adjusted by the supporting fixtures; S5, adjust the tensioning fixture and the supporting fixture respectively, and use an angle ruler to measure the angle, flatness and height of the secondary sealing plate. After the measurement is completed, spot weld the arc-inducing plates in the middle position of the secondary sealing plate and the two wing plates, and then perform intermittent welding. After welding is completed, remove the tensioning fixture and the supporting fixture to complete the installation of the secondary sealing plate.

2. A method for installing a secondary cover plate of a film tank according to claim 1, characterized in that: The shape and size of the secondary sealing plate include the angle, size and flatness of the secondary sealing plate.

3. A method for installing a secondary cover plate of a film tank according to claim 1, characterized in that: The tensioning tooling includes a fixing module and an adjusting module, the fixing module includes a fixing rod and a supporting rod, one end of the fixing rod is vertically connected and fixed to the supporting rod, the fixing rod is cylindrical as a whole, a plurality of bolt holes are opened on the fixing rod, the fixing rod is fixed to the embedded part of the concrete tank wall by bolts, the supporting rod is a square rod, one end of the supporting rod is connected to the fixing rod, and the other end of the supporting rod is connected to the adjusting module.

4. A method for installing a secondary cover plate of a film tank according to claim 3, characterized in that: The adjustment module comprises a pressure rod, a rotary handle and a screw rod. The two ends of the screw rod are respectively provided with a pressure rod and a rotary handle. The rotary handle is fixedly connected to the screw rod, and the pressure rod is threadedly connected to the screw rod.

5. A method for installing a secondary cover plate of a film tank according to claim 4, characterized in that: The installation of the tensioning tool is specifically as follows: the fixing rod is fixed to the embedded parts of the concrete tank wall by bolts through the bolt holes, and at the same time the support rod is located above the secondary sealing plate, the pressure rod in the adjustment module is connected to the upper surface of the secondary sealing plate, and the pressure of the pressure rod on the secondary sealing plate is adjusted by twisting the handle; two tensioning tools are arranged in the middle of the secondary sealing plate.

6. A method for installing a secondary cover plate of a film tank according to claim 1, characterized in that: The supporting tooling includes a supporting plate and an intermediate adjusting rod, support plates are respectively provided at both ends of the intermediate adjusting rod, external threads are respectively provided at both ends of the intermediate adjusting rod, the external threads at both ends of the intermediate adjusting rod are in opposite directions, an internal thread is provided in the middle of the supporting plate, and both ends of the intermediate adjusting rod are respectively threadedly connected with the supporting plate; when the supporting tooling is supported on the secondary sealing plate, the height and flatness of the two ends of the secondary sealing plate are adjusted by screwing the intermediate adjusting rod.

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