Steel structure furnace body or module equipment marine transportation binding structure and method

Abstract

The invention discloses a steel structure furnace body or module equipment marine transportation binding structure and method, and relates to the field of petrochemical engineering equipment marine transportation. The structure comprises a stand column reinforcing assembly, a T-shaped upper end plate, a notched circular pipe, a T-shaped lower end plate and a partial load pier. The stand column reinforcing assembly enhances the strength of the stand column, the T-shaped upper end plate is connected with the stand column through a bolt, the notched round pipe is inserted between the T-shaped upper end plate and the T-shaped lower end plate, and the T-shaped lower end plate is welded to the partial load pier. The process method comprises the steps of prefabrication and installation, shipment and binding and onshore unbinding. According to the invention, the furnace body structure and paint surface are prevented from being damaged by welding, the stress is uniform, the device can be quickly dismantled without recovery after arriving at the shore, and the problems of large damage and high recovery cost of the existing binding mode are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of marine lashing of petrochemical equipment, and in particular to a marine lashing structure and method for a steel structure furnace body or modular equipment. Background Art

[0002] With the trend toward modular construction in petrochemical plants, core equipment such as cracking furnaces and atmospheric pressure furnaces must be transported from the manufacturing plant to the installation site by land and sea. Transport vessels, affected by wind and waves, can experience motion in six degrees of freedom, causing the furnace to shake, capsize, and even damage the equipment structure. Existing seaborne lashing methods for steel furnaces, such as welded lugs and pinned connections, can easily damage the furnace columns, leading to uneven stress distribution and high restoration costs. A lashing structure that is structurally sound and easy to remove is needed to address these issues. Summary of the Invention

[0003] The object of the present invention is to provide a seaborne lashing structure and method for a steel structure furnace body or module equipment.

[0004] In order to achieve the above object, the present invention provides the following technical solutions: A seaborne lashing structure and method for a steel structure furnace body or modular equipment, comprising: A T-shaped upper end plate, wherein the bottom plate of the T-shaped upper end plate is provided with a bolt through hole, the vertical plate flash edge of the T-shaped upper end plate is inclined and narrowed, the inclination angle is 45 degrees, and thin ribs are provided on both sides of the vertical plate; An incision circular tube, wherein both ends of the incision circular tube are provided with incisions; The T-shaped lower end plate and the load-sharing pier are designed so that the vertical plate of the T-shaped lower end plate is inclined and narrowed at an angle of 45°, so as to match the cutout of the cutout circular tube. The T-shaped lower end plate is welded and fixed to the load-sharing pier, and the load-sharing area of ​​the load-sharing pier is ≥ 0.5 m². The two ends of the notched circular tube are respectively plugged into the vertical plate of the T-shaped upper end plate and the vertical plate of the T-shaped lower end plate and fixed by welding.

[0005] Specifically, the vertical plate burrs of the T-shaped upper end plate and the vertical plate inclined ends of the T-shaped lower end plate are more than 6 cm longer than the outer diameter of the cut circular tube, and each side exceeds the outer diameter of the cut circular tube by more than 3 cm.

[0006] Specifically, the vertical plate burrs of the T-shaped upper end plate and the inclined ends of the vertical plate of the T-shaped lower end plate are arc-shaped.

[0007] Specifically, the bottom plate thickness of the T-shaped upper end plate and the bottom plate thickness of the T-shaped lower end plate are both ≥2 cm; the vertical plate thickness of the T-shaped upper end plate and the vertical plate thickness of the T-shaped lower end plate are both ≥2 cm.

[0008] Specifically, the cut circular tube is a standard seamless steel tube, and the connection length between the cut circular tube and the vertical plate of the T-shaped upper end plate and the vertical plate of the T-shaped lower end plate is ≥150 cm.

[0009] A method for sea transport lashing of a steel structure furnace body or module equipment, comprising the following steps: S1. Prefabrication preparation: Check the strength of the openings of the columns of the furnace body or module equipment. If the strength is insufficient, weld the panel to the column and connect the two side flanges of the column with horizontal reinforcement ribs; connect the T-shaped upper end plate to the upper part of the column with bolts, so that the inclined end of the plate flash faces downward; S2. Ship loading and lashing: Arrange the T-shaped lower end plate and the load-sharing piers at corresponding positions on the deck of the transport ship; hoist the cut circular tube using a lifting device, and insert its ends into the vertical plates of the T-shaped upper end plate and the T-shaped lower end plate, respectively. Adjust the angles and tighten them; weld the contact areas between the cut circular tube and the vertical plates of the T-shaped upper end plate and the T-shaped lower end plate, and simultaneously weld the load-sharing piers to the deck of the transport ship; S3. Untying upon arrival: After the transport ship arrives at the shore, the vertical plates of the T-shaped upper end plate and the vertical plates of the T-shaped lower end plate are cut to separate the cut circular tubes; after the furnace body or module equipment is landed, the bolts of the T-shaped upper end plate are removed and the T-shaped upper end plate is taken down.

[0010] Specifically, the incision width of the incision circular tube is 1 mm greater than the thickness of the vertical plate of the T-shaped upper end plate and the thickness of the vertical plate of the T-shaped lower end plate.

[0011] Specifically, in step S3, separation is achieved by cutting the welds between the notched circular tube and the vertical plates of the T-shaped upper end plate and the vertical plates of the T-shaped lower end plate.

[0012] The beneficial effects of the present invention are: The present invention connects the T-shaped upper end plate by bolts, avoiding welding work on the surface of the column, without damaging the original structure and paint surface of the furnace body, and without the need for later repair; the cut circular tube and the T-shaped upper and lower end plates are plugged in and tightened to form no gaps, and the load-sharing piers are used to evenly transmit force, solving the problems of uneven force and excessive swing amplitude in traditional lashing; After arriving at the shore, the circular tube can be separated by cutting the vertical plate, and the removal of the T-shaped upper end plate only requires loosening the bolts, which greatly shortens the untying time and requires no recovery work. The inclination angle of the vertical plate and the size of the circular tube can be adjusted according to the actual force, and it has strong adaptability to the ship's ridge arc and uneven deck.

[0013] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a seaborne lashing structure and method for a steel structure furnace body or modular equipment according to the present invention; Figure 2 This is a reference diagram of the use status of a seaborne lashing structure for a steel structure furnace body or modular equipment shown in the present invention.

[0015] Figure numerals: 1. T-shaped upper end plate, 2. T-shaped lower end plate, 3. notched circular tube, 4. load-sharing pier. DETAILED DESCRIPTION

[0016] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0019] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0020] See Figure 1-Figure 2 The present application provides a seaborne lashing structure for a steel structure furnace or module equipment, comprising: The T-shaped upper end plate 1 has bolt holes on its bottom plate, and the vertical plate fins of the T-shaped upper end plate 1 are inclined and narrowed at an angle of 45°. Thin ribs are provided on both sides of the vertical plate. A notched circular tube 3, with notches formed at both ends of the notched circular tube 3; The T-shaped lower end plate 2 and the load-sharing pier 4 are arranged such that the vertical plate of the T-shaped lower end plate 2 is inclined and narrowed at a 45° angle to match the cutout of the notched circular tube 3. The T-shaped lower end plate 2 and the load-sharing pier 4 are welded and fixed, and the load-sharing area of ​​the load-sharing pier 4 is ≥ 0.5 m². The two ends of the notched circular tube 3 are respectively plugged into the vertical plate of the T-shaped upper end plate 1 and the vertical plate of the T-shaped lower end plate 2 and fixed by welding.

[0021] Specifically, the vertical plate burrs of the T-shaped upper end plate 1 and the vertical plate inclined ends of the T-shaped lower end plate 2 are more than 6 cm longer than the outer diameter of the cut circular tube 3 , and each side exceeds the outer diameter of the cut circular tube 3 by more than 3 cm.

[0022] Specifically, the vertical plate burrs of the T-shaped upper end plate 1 and the vertical plate inclined ends of the T-shaped lower end plate 2 are arc-shaped.

[0023] Specifically, the bottom plate thickness of the T-shaped upper end plate 1 and the bottom plate thickness of the T-shaped lower end plate 2 are both ≥2 cm; the vertical plate thickness of the T-shaped upper end plate 1 and the vertical plate thickness of the T-shaped lower end plate 2 are both ≥2 cm.

[0024] Specifically, the cut circular tube 3 is a standard seamless steel tube, and the connection length between the cut circular tube 3 and the vertical plate of the T-shaped upper end plate 1 and the vertical plate of the T-shaped lower end plate 2 is ≥150 cm.

[0025] A method for sea transport lashing of a steel structure furnace body or module equipment comprises the following steps: S1. Prefabrication preparation: Check the strength of the openings of the columns of the furnace body or module equipment. If the strength is insufficient, weld the panel to the column and connect the two side flanges of the column with horizontal reinforcement ribs; connect the T-shaped upper end plate 1 to the upper part of the column with bolts, so that the vertical plate flash of the T-shaped upper end plate 1 is tilted downward; S2. Ship loading and lashing: Arrange the T-shaped lower end plate 2 and the load-sharing piers at the corresponding positions on the deck of the transport ship; lift the cut circular tube 3 using a lifting device, and connect its ends to the vertical plates of the T-shaped upper end plate 1 and the vertical plates of the T-shaped lower end plate 2 respectively, adjust the angles and tighten them; weld the contact points between the cut circular tube 3 and the vertical plates of the T-shaped upper end plate 1 and the T-shaped lower end plate 2, and simultaneously weld the load-sharing piers to the deck of the transport ship; S3. Untying upon arrival: After the transport ship arrives at the shore, cut the vertical plates of the T-shaped upper end plate 1 and the vertical plates of the T-shaped lower end plate 2, and separate the cut circular tube 3; after the furnace body or module equipment is landed, remove the bolts of the T-shaped upper end plate 1 and take down the T-shaped upper end plate 1.

[0026] Specifically, the cut width of the cut circular tube 3 is 1 mm greater than the thickness of the vertical plate of the T-shaped upper end plate 1 and the thickness of the vertical plate of the T-shaped lower end plate 2 .

[0027] Specifically, in step S3 , separation is achieved by cutting the welds between the notched circular tube 3 and the vertical plates of the T-shaped upper end plate 1 and the vertical plates of the T-shaped lower end plate 2 .

[0028] During use, holes are drilled on each column outside the steel structure furnace body or module, or the holes pre-loaded with auxiliary structures are used in the original design. If the strength is not sufficient, panels are added and welded to the columns to avoid the location and operation of bolts. Horizontal reinforcement ribs are added to connect the flanges on both sides of the columns. The T-shaped lower end plate 2 is directly welded to the load-sharing pier during manufacturing. After the circular tube is cut 3 and the T-shaped upper end plate 1 is completed, it is not welded to other parts. Both sides of the vertical plate are reinforced with thin ribs. The T-shaped upper end plate 1 is first connected to the upper part of the module column by bolts. After the loading is completed, the T-shaped lower end plate 2 and the load-sharing pier are arranged in the corresponding position, and the round tube 3 is lifted by the lifting equipment, and the inclined end of the vertical plate of the T-shaped upper end plate 1 and the inclined end of the vertical plate of the T-shaped lower end plate 2 are plugged in. The angle is adjusted and tightened up and down. After all the round tube openings 3 are connected, the two ends of the round tube openings 3 are welded together with the vertical plates, and the load-sharing piers are welded together with the deck to complete the binding; after the transport ship arrives at the shore, the vertical plates can be quickly cut off, and the round tube openings 3 can be separated. After the module is put ashore, the bolts are loosened to remove the T-shaped upper end plate 1. Therefore, there is no damage to the module paint surface, no effect on the column strength, no effect on the installation combination of subsequent modules, the operation time is also short, and no repair work is required.

[0029] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0030] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A seaborne lashing structure for a steel structure furnace or modular equipment, characterized in that: include: A T-shaped upper end plate, wherein the bottom plate of the T-shaped upper end plate is provided with a bolt through hole, the vertical plate flash edge of the T-shaped upper end plate is inclined and narrowed, the inclination angle is 45 degrees, and thin ribs are provided on both sides of the vertical plate; An incision circular tube, wherein both ends of the incision circular tube are provided with incisions; The T-shaped lower end plate and the load-sharing pier are designed so that the vertical plate of the T-shaped lower end plate is inclined and narrowed at an angle of 45°, so as to match the cutout of the cutout circular tube. The T-shaped lower end plate is welded and fixed to the load-sharing pier, and the load-sharing area of ​​the load-sharing pier is ≥ 0.5 m². The two ends of the notched circular tube are respectively plugged into the vertical plate of the T-shaped upper end plate and the vertical plate of the T-shaped lower end plate and fixed by welding.

2. The structure according to claim 1, characterized in that The length of the vertical plate burr of the T-shaped upper end plate and the vertical plate inclined end of the T-shaped lower end plate exceeds the outer diameter of the cut circular tube by more than 6 cm, and each side exceeds the outer diameter of the cut circular tube by more than 3 cm.

3. The structure according to claim 1, characterized in that The vertical plate burrs of the T-shaped upper end plate and the vertical plate inclined ends of the T-shaped lower end plate are arc-shaped.

4. The structure according to claim 1, characterized in that The bottom plate thickness of the T-shaped upper end plate and the bottom plate thickness of the T-shaped lower end plate are both ≥2cm; the vertical plate thickness of the T-shaped upper end plate and the vertical plate thickness of the T-shaped lower end plate are both ≥2cm.

5. The structure according to claim 1, characterized in that The incised circular tube is a standard seamless steel tube, and the connection length between the incised circular tube and the vertical plate of the T-shaped upper end plate and the vertical plate of the T-shaped lower end plate is ≥150 cm.

6. A method for seaborne lashing of a steel structure furnace or modular equipment, based on the lashing structure according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. Prefabrication preparation: Check the strength of the openings of the columns of the furnace body or module equipment. If the strength is insufficient, weld the panel to the column and connect the two side flanges of the column with horizontal reinforcement ribs; connect the T-shaped upper end plate to the upper part of the column with bolts, so that the inclined end of the plate flash faces downward; S2. Ship loading and lashing: Arrange the T-shaped lower end plate and the load-sharing piers at corresponding positions on the deck of the transport ship; hoist the cut circular tube using a lifting device, and insert its ends into the vertical plates of the T-shaped upper end plate and the T-shaped lower end plate, respectively. Adjust the angles and tighten them; weld the contact areas between the cut circular tube and the vertical plates of the T-shaped upper end plate and the T-shaped lower end plate, and simultaneously weld the load-sharing piers to the deck of the transport ship; S3. Untying on arrival: After the transport ship arrives at the shore, the vertical plates of the T-shaped upper end plate and the vertical plates of the T-shaped lower end plate are cut to separate the cut circular tubes; after the furnace body or module equipment is landed, the bolts of the T-shaped upper end plate are removed and the T-shaped upper end plate is taken down.

7. The method according to claim 6, characterized in that In step S2, the incision width of the incision circular tube is 1 mm greater than the thickness of the vertical plate of the T-shaped upper end plate and the thickness of the vertical plate of the T-shaped lower end plate.

8. The method according to claim 6, characterized in that In step S3, separation is achieved by cutting the welds between the notched circular tube and the vertical plates of the T-shaped upper end plate and the vertical plates of the T-shaped lower end plate.

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