A pyrotechnic correction method for a ship's funnel section wall plate

Abstract

The application discloses a fire correction method for a ship chimney section wallboard, and specifically comprises the following steps: S1, determining the deformation form of the connecting plate of the large opening of the chimney section wallboard, and installing B-type codes on the two sides of the connecting plate to be corrected; S2, setting a correction rod on the end face of the connecting plate to be corrected, and connecting the correction rod and the B-type codes through a hand-operated hoist; S3, correcting the connecting plate by tensioning the hand-operated hoist and performing fire correction and water cooling on the connecting plate to be corrected, and then measuring the levelness of the corrected connecting plate, and when the levelness does not meet the requirements, repeating the correction steps until the levelness of the connecting plate meets the requirements. The application overcomes the problem that the ship chimney section wallboard has no strong structure inside, and the connecting plate deformation between the openings of the wallboard cannot be processed by using a portable oil pump, and the correction problem of the deformation can be completed without relying on rare travelling crane resources, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of shipbuilding, and particularly relates to a firework correction method for a ship chimney section wallboard. BACKGROUND

[0002] The hull structure includes a bow and stern area, a cargo hold area, and a superstructure area. The superstructure area uses a steel plate thickness that is the minimum thickness of the entire ship, and the hull auxiliary reinforcement is relatively weak. The chimney section is mainly used for the layout of the ship flue, and the structural wallboard has a plurality of large openings, and the connecting plate between the openings is relatively narrow. During the section manufacturing process, the connecting plate is prone to deformation, which causes the flatness of the subsequent installation of fittings such as louvers at this location to not meet the installation requirements. Since there is no strong structure inside the opening at this location, the traditional method of using an oil pump to borrow power to push out and add firework cannot be used. In view of this situation, a large gantry crane is commonly used to pull the deformation area from the outside of the section to solve the problem of deformation of the large opening of the wallboard. This method has a number of drawbacks. ① There is a great safety hazard in using a large gantry crane to pull, and if the pulling force is not controlled properly, it can cause the section to deform or even collapse. ② The large gantry crane is a scarce resource, and its conventional hoisting time is already tight, so if it is used for correction, it will cause the total assembly operation time in the dock to be insufficient, and the production cycle will be tight. SUMMARY

[0003] The purpose of the present application is to overcome the shortcomings of the prior art, and to provide a firework correction method for a ship chimney section wallboard. The present application uses the principle of a lever to overcome the problem of deformation of the connecting plate between the openings of the wallboard in the chimney section of the ship, which cannot be handled by a portable oil pump. Compared with the traditional method of relying on a large crane for lifting, the safety of this method is greatly improved, and it no longer relies on scarce crane resources to complete the deformation correction problem, and the production efficiency is improved.

[0004] In order to achieve the above-mentioned purpose of the application, the technical solution provided by the present application patent is as follows:

[0005] A firework correction method for a ship chimney section wallboard, which specifically comprises the following steps:

[0006] S1, determine the deformation form of the connecting plate of the large opening of the chimney section wallboard, and install B-type codes on the connecting plates on both sides of the connecting plate to be corrected;

[0007] S2, set a correction rod on the end face of the connecting plate to be corrected, and connect the correction rod and the B-type code through a hand-operated hoist;

[0008] S3, the deformation of the connecting plate of the large opening of the wall plate of the chimney section is completed by tensioning the hand-operated hoist, and the fire correction and water cooling of the connecting plate to be corrected, and then the levelness of the corrected connecting plate is measured, and when it does not meet the requirements, the correction steps are repeated until the levelness of the connecting plate meets the requirements.

[0009] Further, the deformation form of the connecting plate of the large opening of the chimney section wall plate includes that the middle part of the connecting plate is horizontally deformed, and the plate surface on both sides of the connecting plate is recessed inward or the plate surface is raised outward.

[0010] Further, the B-shaped code is installed as follows: when the plate surface on one side of the connecting plate to be corrected is recessed inward, the B-shaped code is arranged at the middle part of the end surface of the connecting plate on the opposite side of the recessed plate surface; and when the plate surface on one side of the connecting plate to be corrected is raised outward, the B-shaped code is arranged at the middle part of the end surface of the connecting plate on the opposite side of the raised plate surface.

[0011] Further, the correction rod includes a clamping part and a connecting part, the upper end of the clamping part is provided with the connecting part, the clamping part is a U-shaped groove as a whole, the side surface of the clamping part is fixedly connected with the connecting part, the groove opening of the clamping part is horizontally arranged, the upper end of the connecting part is provided with a connecting hole, and the connecting plate is a cross-shaped plate as a whole.

[0012] Further, the center line of the connecting hole is arranged perpendicularly to the direction of the groove of the clamping part.

[0013] Further, the correction rod is installed as follows: the correction rod is installed on the connecting plate to be corrected, the clamping part of the correction rod is clamped on the plate surface to be corrected through the clamping groove, the correction rod is arranged correspondingly with the B-shaped code on the opposite side of the connecting plate, and the line connecting the correction rod and the corresponding B-shaped code is perpendicular to the connecting plate.

[0014] Further, the connecting plate to be corrected is simultaneously subjected to the fire correction and water cooling while the hand-operated hoist is tensioned, and the correction sequence is from the middle part of the connecting plate to the both ends of the connecting plate.

[0015] Based on the above technical scheme, the fire correction method for the wall plate of the chimney section of the ship has the following technical advantages after practical application:

[0016] 1. The fire correction method for the wall plate of the chimney section of the ship overcomes the problem that there is no strong structure inside the wall plate of the chimney section of the ship, and a portable oil pump cannot be used to process the deformation of the connecting plate between the openings of the wall plate, by using the principle of a lever, the safety of the method is greatly improved compared with the traditional method relying on the lifting mode of a large crane, and the method no longer relies on rare crane resources, and the deformation correction problem can be completed, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1It is a correction rod structure diagram in a pyrotechnic correction method for a ship smoke stack segmented wallboard of the present application.

[0018] Fig. 2 It is a use installation perspective view of a correction rod in a pyrotechnic correction method for a ship smoke stack segmented wallboard of the present application.

[0019] Fig. 3 It is a front view of a correction rod in a pyrotechnic correction method for a ship smoke stack segmented wallboard of the present application. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present application more clear and obvious, the present application will be described below through specific examples shown in the drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present application. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present application.

[0021] As Figs. 1-3 described, the present application belongs to a pyrotechnic correction method for a ship smoke stack segmented wallboard, which specifically includes the following steps:

[0022] S1, determining the deformation form of the connecting plate 21 of the large opening of the smoke stack segmented wallboard 2, installing B-type codes 3 on both sides of the connecting plate 21 to be corrected;

[0023] S2, setting a correction rod 1 on the end face of the connecting plate 21 to be corrected, and connecting the correction rod 1 with the B-type code 3 through a hand-operated hoist 4;

[0024] S3, completing the correction of the connecting plate 21 by tightening the hand-operated hoist 4 and performing pyrotechnic correction and water cooling on the connecting plate 21 to be corrected, and then measuring the levelness of the corrected connecting plate 21, when it does not meet the requirements, repeating the correction steps until the levelness of the connecting plate 21 meets the requirements.

[0025] By using the principle of lever, the problem of being unable to use a portable oil pump to process the deformation of the connecting plate 21 between the openings of the wallboard due to the lack of strong structure inside the ship smoke stack segmented wallboard 2 is overcome. Compared with the traditional method relying on the lifting mode of large-scale traveling cranes, the safety of the present application is greatly improved, and it no longer relies on rare traveling crane resources, and can complete such deformation correction problems, and the production efficiency is improved.

[0026] The deformation form of the connecting plate 21 of the large opening of the smoke stack segmented wallboard 2 includes that the middle part of the connecting plate 21 is horizontal and the plate surfaces on both sides of the connecting plate 21 are recessed inward or are raised outward.

[0027] The B-shaped code 3 is installed as follows: when the plate surface on one side of the connecting plate 21 to be corrected is recessed inward, the B-shaped code 3 is arranged at the middle of the end surface of the connecting plate 21 on the same side of the recessed plate surface; and when the plate surface on one side of the connecting plate 21 to be corrected is warped outward, the B-shaped code 3 is arranged at the middle of the end surface of the connecting plate 21 on the opposite side of the warped plate surface.

[0028] The correction rod 1 comprises a clamping portion 12 and a connecting portion 11, the upper end of the clamping portion 12 is provided with the connecting portion 11, the clamping portion 12 is a U-shaped groove as a whole, the side surface of the clamping portion 12 is fixedly connected with the connecting portion 11, the slot of the clamping portion 12 is horizontally arranged, the upper end of the connecting portion 11 is provided with a connecting hole, and the connecting plate 21 is a cross-shaped plate as a whole.

[0029] The center line of the connecting hole is arranged perpendicularly to the direction of the groove of the clamping portion 12.

[0030] The correction rod 1 is installed as follows: the correction rod 1 is installed on the connecting plate 21 to be corrected, the clamping portion 12 on the correction rod 1 is clamped on the plate surface to be corrected through the clamping groove, the correction rod 1 is arranged correspondingly to the B-shaped code 3 on the opposite side of the connecting plate 21, and the line connecting the correction rod 1 and the corresponding B-shaped code 3 is perpendicular to the connecting plate 21.

[0031] The hand-operated hoist 4 is tightened, and the connecting plate 21 to be corrected is simultaneously subjected to the explosive correction and water cooling, and the correction sequence is from the middle of the connecting plate 21 to the both ends of the connecting plate 21.

[0032] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that; the specific embodiments of the present application can be modified or some technical features can be replaced by equivalent ones; without departing from the spirit of the technical solutions of the present application, they should be covered in the technical solution range of the present application claimed.

Claims

1. A method for pyrotechnic straightening of segmented wall panels for ship chimneys, characterized in that, The method specifically includes the following steps: S1, determine the deformation form of the connecting plate of the large opening of the chimney segment wall panel, and install B-type code on the connecting plate on both sides of the connecting plate to be corrected. S2, Set a straightening rod on the end face of the connecting plate to be straightened, and connect the straightening rod to the B-type code by a hand chain hoist; The corrective rod includes a clamping part and a connecting part. The upper end of the clamping part is provided with a connecting part. The clamping part is generally U-shaped groove. The side of the clamping part is fixedly connected to the connecting part. The groove of the clamping part is horizontally set. The upper end of the connecting part is provided with a connecting hole. The connecting plate is generally cross-shaped plate. The corrective rod is specifically installed as follows: the corrective rod is installed on the connecting plate to be corrected, the clamping part on the corrective rod is clamped on the plate surface to be corrected through the clamping groove, the corrective rod is set to correspond with the B-type code on the opposite side of the connecting plate, and the corrective rod is connected to the hand chain hoist through the connecting hole. S3. The connection plate is straightened by tightening the hand chain hoist and by fire straightening and water cooling. The level of the straightened connection plate is then measured. If it does not meet the requirements, the straightening steps are repeated until the level of the connection plate meets the requirements.

2. The fire-working straightening method for segmented wall panels of ship chimneys according to claim 1, characterized in that, The center line of the connecting hole is perpendicular to the direction of the groove of the clamping part.

3. The fire-working straightening method for segmented wall panels of ship chimneys according to claim 1, characterized in that, While the hand-operated hoist is tightened, the connecting plate to be corrected is simultaneously subjected to fire straightening and water cooling. The straightening sequence is to start from the middle of the connecting plate and gradually move towards both ends of the connecting plate.

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