Formwork structure for manufacturing pressure-resistant ring of LNG (liquefied natural gas) tank body
By designing a mold frame structure for LNG tank compression ring production, the position of the compression ring plate and the compression ring is adjusted using components such as tire support and ring plate vertical support, the problem of precise production of the compression ring is solved, and the airtightness and safety of the vault are achieved.
Patent Information
- Application Number
- CN202420323772.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-21
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-02-21
AI Technical Summary
In the liquefied natural gas (LNG) tank vault structure, the precise production of the compressive ring is difficult to achieve, resulting in the inability to weld tightly between adjacent ring blocks, affecting the airtightness of the vault and posing a safety hazard of gas leakage.
A mold frame structure for LNG tank compression ring production is designed. Through tire support, ring plate vertical support, ring plate oblique support, roller, steering pulley, rotating hinge, anchor plate, wire rope and other components, the relative position between the compressive ring plate and the compressive ring is adjusted to ensure accurate assembly and welding.
The precise assembly of the compressive ring plate and the compressive ring is achieved, which prevents welding deformation, ensures the airtightness and safety of the vault, and improves the accuracy and efficiency of construction control.
Smart Images
Figure CN222536709U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of construction control of a formwork structure for manufacturing a liquefied natural gas tank body arch anti-pressure ring, and in particular relates to a formwork structure for manufacturing an LNG tank body anti-pressure ring. Background Art
[0002] The vault structure of the liquefied natural gas (LNG) tank is large in volume, among which the pressure ring is an important component to ensure the safety of the structure and bear the pressure of the vault. The pressure ring consists of a pressure ring plate and a pressure ring, which are arranged along the vault. During the production process of the pressure ring and the pressure ring, due to their heavy weight, a special mold frame is required for processing and manufacturing the pressure ring. If the pressure ring cannot be made accurately, the adjacent pressure ring blocks will not be able to be tightly welded, which will affect the airtightness of the vault and pose a safety hazard of gas leakage. Therefore, how to accurately manufacture the pressure ring, ensure the effective positioning of the manufacturing mold frame, and achieve the purpose of construction control is an important issue that needs to be solved. Summary of the invention
[0003] In order to solve the above problems, the present invention discloses an LNG tank lifting and balancing structure, which utilizes a spatial stable structure formed by a lifting platform, a balancing structure and steel wire ropes to realize a control function for the stability and balance of the tank arch during the lifting process, thereby avoiding lateral or longitudinal deviation of the arch. The structure is simple, convenient and easy to use, and can realize the control of the inclination angle and horizontal angle of the arch during the gas lifting process, and has the advantages of high construction efficiency.
[0004] A mold frame structure for manufacturing an LNG tank body pressure-resistant ring includes: a mold support, a ring plate vertical support, a ring plate diagonal support, a block, a roller, a steering pulley, a rotating hinge, an anchor plate, a steering pulley support, a wire rope, a pressure-resistant ring plate, and a pressure-resistant ring. The mold support, the ring plate vertical support, and the ring plate diagonal support form a mold frame for manufacturing an LNG tank body pressure-resistant ring, and the relative positions of the pressure-resistant ring plate and the pressure-resistant ring are adjusted by the roller, the steering pulley, and the rotating hinge.
[0005] Further improvement of the utility model: the jig support is arranged vertically, and the top end supports the end of the anti-pressure ring plate to prevent the anti-pressure ring plate from sliding off. A plurality of rollers are arranged between the jig support and the anti-pressure ring plate for relative rotation of the jig support when the anti-pressure ring plate is positioned.
[0006] Further improvement of the utility model: the anchor plate is welded on the top surface of the ring plate diagonal support, and a round hole is opened in the middle of the plate for anchoring the steel wire rope.
[0007] Further improvement of the utility model: the steering pulley support is horizontally welded on the jig support, and a steering pulley is provided at the end. One end of the wire rope is anchored on the anchor plate, and the other end is turned through the steering pulley, and a vertical force is applied to lift the compression ring plate upward by 10 mm to control welding deformation.
[0008] Further improvement of the utility model: the ring plate vertical support is a steel member with a groove on the upper part, which is connected to the ring plate diagonal support through a rotating hinge, and the connection angle is consistent with the connection angle of the anti-pressure ring plate and the anti-pressure ring. At the same time, after adjusting the relative position between the anti-pressure ring plate and the anti-pressure ring by rotating the rotating hinge, a block matching the geometric size of the groove is inserted into the groove on the upper part of the ring plate vertical support to support the anti-pressure ring plate and the anti-pressure ring to ensure the positioning between the two.
[0009] The working principle of the utility model is: anchor one end of the wire rope on the anchor plate, and the other end is turned by the steering pulley, and a vertical force is applied to lift the anti-compression ring plate upward by 10 mm to control the welding deformation. The ring plate vertical support and the ring plate diagonal support are connected by a rotating hinge, and the connection angle is consistent with the connection angle of the anti-compression ring plate and the anti-compression ring. At the same time, after adjusting the relative position between the anti-compression ring plate and the anti-compression ring by rotating the rotating hinge, a block is inserted into the groove on the upper part of the ring plate vertical support to support the anti-compression ring plate and the anti-compression ring to ensure the positioning between the two.
[0010] Beneficial effects of the utility model:
[0011] The mold frame structure for manufacturing the LNG tank anti-pressure ring proposed in the present invention can be accurately assembled with the anti-pressure ring plate and the anti-pressure ring module after checking with a total station according to the required size and confirming that the supporting position is qualified.
[0012] After the anti-compression ring and the anti-compression ring are welded and fixed on the mold frame structure, the anti-compression ring can be prevented from warping and deformation caused by excessive welding deformation.
[0013] The positions of the anti-compression ring plate and the anti-compression circle plate on the production mold frame can be easily adjusted. After reaching the required size, the anti-compression circle is fixed with a wire rope and the anti-compression ring is fixed with an anchor plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the mold frame structure for manufacturing the LNG tank body compression ring of the present invention;
[0015] Figure 2 It is a schematic diagram of the ring plate vertical support of the present invention.
[0016] The reference numerals are:
[0017] 1- jig support, 2- ring plate vertical support, 3- ring plate diagonal support, 4- stopper, 5- roller, 6- steering pulley, 7- rotating hinge, 8- anchor plate, 9- steering pulley support, 10- wire rope, 11- compression ring plate, 12- compression ring, 13- vertical force, 14- groove. DETAILED DESCRIPTION
[0018] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.
[0019] like Figure 1 As shown, this embodiment provides a mold frame structure for manufacturing an LNG tank body anti-pressure ring, including: a mold support 1, a ring plate vertical support 2, a ring plate diagonal support 3, a block 4, a roller 5, a steering pulley 6, a rotating hinge 7, an anchor plate 8, a steering pulley support 9, a wire rope 10, an anti-pressure ring plate 11, and an anti-pressure ring 12. The mold support 1, the ring plate vertical support 2 and the ring plate diagonal support 3 form a mold frame for manufacturing an anti-pressure ring of a tank body, and the relative positions of the anti-pressure ring plate 11 and the anti-pressure ring 12 are adjusted by the roller 5, the steering pulley 6 and the rotating hinge 7.
[0020] like Figure 1 As shown, the jig support 1 is vertically arranged, and the top end supports the end 1A of the anti-pressure ring plate 11 to prevent the anti-pressure ring plate 11 from sliding. A plurality of rollers 5 are arranged between the jig support 1 and the anti-pressure ring plate 11 for relative rotation of the jig support 1 when the anti-pressure ring plate 11 is positioned.
[0021] like Figure 1 As shown, the anchor plate 8 is welded on the top surface of the ring plate diagonal support 3, and a circular hole is opened in the middle of the plate for anchoring the steel wire rope 10.
[0022] like Figure 1 As shown, the steering pulley support 9 is horizontally welded on the jig support 1, and a steering pulley 6 is provided at the end. One end of the steel wire rope 10 is anchored on the anchor plate 8, and the other end is turned through the steering pulley 6, and a vertical force 13 is applied to lift the compression ring plate 11 upward by 10 mm to control the welding deformation.
[0023] like Figure 1 As shown, the ring plate vertical support 2 is a steel member with a groove 14 on the upper part, which is connected to the ring plate diagonal support 3 through a rotating hinge 7, and the connection angle is consistent with the connection angle of the anti-pressure ring plate 11 and the anti-pressure ring 12. At the same time, after adjusting the relative position between the anti-pressure ring plate 11 and the anti-pressure ring 12 by rotating the rotating hinge 7, a stopper 4 matching the geometric size of the groove 14 is inserted into the groove 14 on the upper part of the ring plate vertical support 2 to support the anti-pressure ring plate 11 and the anti-pressure ring 12 to ensure the positioning between the two.
[0024] The present invention anchors one end of the steel wire rope on the anchor plate, and the other end is turned by a steering pulley, and a vertical force is applied to lift the anti-compression ring plate upward by 10 mm to control welding deformation. The ring plate vertical support and the ring plate diagonal support are connected by a rotating hinge, and the connection angle is consistent with the connection angle of the anti-compression ring plate and the anti-compression ring. At the same time, after adjusting the relative position between the anti-compression ring plate and the anti-compression ring by rotating the rotating hinge, the anti-compression ring plate and the anti-compression ring are supported by a block to ensure the positioning between the two. The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above technical features.
Claims
1. A mold frame structure for manufacturing a compression ring of an LNG tank, characterized by: The invention comprises a mold support (1), a ring plate vertical support (2), a ring plate diagonal support (3), a stopper (4), a roller (5), a steering pulley (6), a rotating hinge (7), an anchor plate (8), a steering pulley support (9), a steel wire rope (10), a pressure-resistant ring plate (11) and a pressure-resistant ring (12); wherein the mold support (1), the ring plate vertical support (2) and the ring plate diagonal support (3) form a mold frame for manufacturing the tank body pressure-resistant ring, and the relative positions of the pressure-resistant ring plate (11) and the pressure-resistant ring (12) are adjusted by the roller (5), the steering pulley (6) and the rotating hinge (7).
2. The mold frame structure for manufacturing the compression ring of an LNG tank according to claim 1 is characterized in that: The jig support (1) is arranged vertically, and the top end (1A) of the jig support (1) is tightly fitted with the end of the anti-pressure ring (12); a plurality of rollers (5) are arranged between the jig support (1) and the anti-pressure ring plate (11) to facilitate the relative rotation of the jig support (1) when the anti-pressure ring plate (11) is positioned.
3. The mold frame structure for manufacturing the compression ring of an LNG tank according to claim 1 is characterized in that: The anchor plate (8) is welded to the top surface of the ring plate diagonal brace (3), and a circular hole is opened in the middle of the anchor plate (8) for anchoring the steel wire rope (10).
4. The mold frame structure for manufacturing the compression ring of an LNG tank according to claim 1 is characterized in that: The steering pulley support (9) is horizontally welded to the jig support (1), and a steering pulley (6) is provided at the end thereof. One end of the steel wire rope (10) is anchored to the anchor plate (8), and the other end is steered by the steering pulley (6). A vertical force (13) is applied to lift the compression ring plate (11) upward by 10 mm, thereby controlling welding deformation.
5. The mold frame structure for manufacturing the compression ring of an LNG tank according to claim 1, characterized in that: The ring plate vertical support (2) is a steel member with a groove (14) on the upper part, and is connected to the ring plate diagonal support (3) via a rotating hinge (7), and the connection angle is consistent with the connection angle of the anti-pressure ring plate (11) and the anti-pressure ring (12); at the same time, by rotating the rotating hinge (7), the relative position between the anti-pressure ring plate (11) and the anti-pressure ring (12) is adjusted, and a stopper (4) matching the geometric size of the groove (14) is inserted into the groove (14) on the upper part of the ring plate vertical support (2) to support the anti-pressure ring plate (11) and the anti-pressure ring (12) to ensure the positioning between the two.