阅读说明：本技术 一种液化天然气全容储罐主容器壁板立缝自动焊焊接平台 (Liquefied natural gas holds storage tank owner container wallboard vertical joint automatic weld welded platform entirely ) 是由 韦宝成 杨尚玉 李涛 魏雄标 曹为 苏娟 李顺兴 张君秋 段淳元 阮见峰 胡家新 于 2020-05-29 设计创作，主要内容包括：本发明公开了一种液化天然气全容储罐主容器壁板立缝自动焊焊接平台,包括：底座、焊接框架和固定组件,焊接框架可拆卸地连接在底座上,并沿底座水平延伸方向且与底座相互垂直设置,焊接框架的一侧设有与底座可拆卸连接的支撑件,焊接框架的另一侧设有与底座活动连接的吊装件；固定组件沿垂直方向设在焊接框架上,用于与自动焊接设备配合使用。本发明的自动焊焊接平台结构精巧、稳定可靠,拆装运输便捷,能够安全、可靠地完成液化天然气全容储罐壁板立缝自动焊接的焊工培训、工艺试验等工作,为有效降低储罐壁板安装过程中的焊接质量人为因素影响、稳定焊接质量和提高LNG储罐的安全性能和延长其使用寿命提供了关键辅助装备。(The invention discloses an automatic vertical seam welding platform for a main container wall plate of a liquefied natural gas full-capacity storage tank, which comprises: the welding frame is detachably connected to the base and is arranged along the horizontal extension direction of the base and perpendicular to the base, a supporting piece detachably connected with the base is arranged on one side of the welding frame, and a hoisting piece movably connected with the base is arranged on the other side of the welding frame; the fixing assembly is arranged on the welding frame along the vertical direction and is used in cooperation with automatic welding equipment. The automatic welding platform is exquisite in structure, stable and reliable, convenient to disassemble, assemble and transport, capable of safely and reliably completing welder training, process tests and other works of automatic vertical seam welding of the wall plate of the liquefied natural gas full-capacity storage tank, and provides key auxiliary equipment for effectively reducing the influence of welding quality human factors in the installation process of the wall plate of the storage tank, stabilizing the welding quality, improving the safety performance of the LNG storage tank and prolonging the service life of the LNG storage tank.)

1. The utility model provides a liquefied natural gas holds storage tank owner container wallboard vertical joint automatic weld welded platform entirely, its characterized in that, it includes: the welding frame is detachably connected to the base and is arranged along the horizontal extending direction of the base and perpendicular to the base, a supporting piece detachably connected with the base is arranged on one side of the welding frame, and a hoisting piece movably connected with the base is arranged on the other side of the welding frame; the fixing assembly is arranged on the welding frame along the vertical direction and is used in cooperation with automatic welding equipment.

2. The LNG full-capacity storage tank main vessel wall plate vertical seam automatic welding platform as claimed in claim 1, wherein the base is enclosed by two cross rods and two longitudinal rods, wherein the cross rods and the longitudinal rods are detachably connected through bolts.

3. The LNG full-capacity storage tank main vessel wall plate vertical seam automatic welding platform as claimed in claim 1, wherein the welding frame comprises vertical rods, an upper transverse plate and a lower transverse plate, the two vertical rods are respectively vertically connected to the base, the upper transverse plate is detachably connected to top ends of the two vertical rods, the lower transverse plate is detachably connected to bottom ends of the two vertical rods, and the lower transverse plate is located above the base.

4. The automatic vertical seam welding platform for the wall plate of the main vessel of the liquefied natural gas full-capacity storage tank as claimed in claim 3, wherein the fixing assembly comprises a vertical plate, a locking member and a welding test plate, two ends of the vertical plate are respectively and fixedly connected with the upper transverse plate and the lower transverse plate, the locking member is a plurality of locking members which are arranged on one side of the vertical plate facing the hoisting member at intervals from top to bottom, and the welding test plate is clamped on the locking member and used in cooperation with the automatic welding equipment.

5. The LNG full-capacity storage tank main vessel wall plate vertical seam automatic welding platform as claimed in claim 1, wherein the support members are two diagonal support rods, the two diagonal support rods are respectively arranged at two sides of the welding frame, and top ends of the two diagonal support rods are detachably connected with the welding frame through a connecting plate.

6. The LNG full-capacity storage tank main container wall plate vertical seam automatic welding platform as claimed in claim 1, wherein the hoisting pieces are two steel wire ropes with adjusting joints, and the two steel wire ropes are detachably connected to two sides of the welding frame.

7. The LNG full-capacity storage tank main vessel wall plate vertical seam automatic welding platform as claimed in claim 4, wherein the locking member comprises two pressing plates and locking bolts, the two pressing plates are symmetrically arranged on the front and back surfaces of one side of the vertical plate, and the locking bolts are in threaded connection with one of the pressing plates.

8. The LNG full-capacity storage tank main vessel wall plate vertical seam automatic welding platform of claim 3, wherein the vertical rod and the upper cross rod and the vertical rod and the lower cross rod are connected through bolts.

9. The LNG full-capacity storage tank main vessel wall plate vertical seam automatic welding platform as claimed in claim 2, wherein the welding frame is vertically arranged on a center line of the longitudinal rod.

10. The LNG full-capacity storage tank main vessel wall plate vertical seam automatic welding platform as claimed in any one of claims 1 to 9, wherein leveling bolts are arranged at four corners of the base.

Technical Field

The invention relates to the technical field of welding of liquefied natural gas full-capacity storage tanks, in particular to an automatic vertical seam welding platform for main container wall plates of a liquefied natural gas full-capacity storage tank.

Background

With the development of economy and the enhancement of environmental awareness, the demand of Liquefied Natural Gas (LNG) as a clean and efficient energy source is increasing, which requires the pace of the development of technologies related to liquefied natural gas to be accelerated. For the technology-intensive liquefied natural gas industry, research and development of related technologies of liquefied natural gas, especially related technologies of liquefied natural gas storage tanks, have important social benefits and economic benefits for the development of the liquefied natural gas industry.

The liquefied natural gas storage tank mainly comprises the following components according to a mechanical bearing mode for a liquid and steam closed system: the receiving terminal comprises a single-capacity tank, a double-capacity tank, a full-capacity tank and a film tank, wherein the full-capacity tank is a main tank type of the receiving terminal which is put into operation at present in China. The full-capacity tank includes: a primary container and a secondary container are combined to form an integral storage tank, the primary container is a self-supporting steel single-wall tank for containing liquid working medium, and the material is low-temperature-resistant 9% nickel steel.

The wall plate of the main container of the existing liquefied natural gas storage tank is generally installed upwards in an annular layer by layer mode, and in the installation process, the welding process of the storage tank wall plate to the vertical butt joint is welding rod arc welding. The wall plate is made of 9% Ni steel, and the manual electric arc welding process has the defects of long construction period, high cost, high labor intensity, poor construction site environment, easy generation of air holes, incomplete fusion and the like, and seriously influences the quality and the safety performance of the storage tank. Therefore, the construction quality control of the wall plate of the liquefied natural gas storage tank is difficult, and therefore, a further improvement of the welding process of the vertical seam of the wall plate of the main container of the existing liquefied natural gas storage tank is needed. The adoption of an automatic welding technology is an effective measure for solving the problems.

Before the automatic welding equipment is used for welding the vertical seam of the wall plate of the main container of the liquefied natural gas storage tank, a welding process evaluation test, a welder training and an examination are completed according to design files and relevant standard requirements, and a welding test of a product test plate is completed before construction or in an early stage, so that a welding platform is required to be designed as auxiliary equipment of the automatic welding equipment.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. In view of this, the invention needs to provide an automatic welding platform for vertical seams of wall plates of main containers of liquefied natural gas full-capacity storage tanks, which has the advantages of exquisite structure, stability, reliability, convenience in disassembly, assembly and transportation, safety in use, high stability, effective temperature welding quality, safety performance improvement of liquefied natural gas storage tanks, and long service life.

The invention provides an automatic vertical seam welding platform for a main container wall plate of a liquefied natural gas full-capacity storage tank, which comprises: the welding frame is detachably connected to the base and is arranged along the horizontal extending direction of the base and perpendicular to the base, a supporting piece detachably connected with the base is arranged on one side of the welding frame, and a hoisting piece movably connected with the base is arranged on the other side of the welding frame; the fixing assembly is arranged on the welding frame along the vertical direction and is used in cooperation with automatic welding equipment.

According to one embodiment of the invention, the base is enclosed by two transverse rods and two longitudinal rods, wherein the transverse rods and the longitudinal rods are detachably connected through bolts.

According to one embodiment of the invention, the welding frame comprises vertical rods, an upper transverse plate and a lower transverse plate, the two vertical rods are respectively and vertically connected to the base, the upper transverse plate is detachably connected with the top ends of the two vertical rods, the lower transverse plate is detachably connected with the bottom ends of the two vertical rods, and the lower transverse plate is positioned above the base.

According to one embodiment of the invention, the fixing assembly comprises a vertical plate, a locking member and a welding test plate, two ends of the vertical plate are respectively and fixedly connected with the upper transverse plate and the lower transverse plate, the locking member is a plurality of locking members which are uniformly arranged on one side of the vertical plate facing the hoisting member from top to bottom at intervals, and the welding test plate is clamped on the locking member and is matched with the automatic welding equipment for use.

According to one embodiment of the invention, the supporting members are two diagonal supporting rods which are respectively arranged at two sides of the welding frame, wherein the top ends of the two diagonal supporting rods are detachably connected with the welding frame through a connecting plate.

According to one embodiment of the invention, the hoisting piece is a steel wire rope with an adjusting joint, and the two steel wire ropes are detachably connected to two sides of the welding frame.

According to one embodiment of the invention, the locking piece comprises two pressing plates and locking bolts, the two pressing plates are symmetrically arranged on the front and back surfaces of one side of the vertical plate, and the locking bolts are in threaded connection with one of the pressing plates.

According to one embodiment of the invention, the upright bars and the upper cross bar and the upright bars and the lower cross bar are connected through bolts.

According to one embodiment of the invention, the welding frame is arranged perpendicularly to the centre line of the longitudinal bar.

According to one embodiment of the invention, leveling bolts are arranged at four corners of the base.

The automatic vertical seam welding platform for the wall plate of the main container of the liquefied natural gas full-capacity storage tank comprises a base, a welding frame, inclined supporting rods, vertical plates and vertical plates, wherein the base is formed by connecting the horizontal rods and the vertical rods through bolts; the welding test plate is quickly and safely compressed by adopting the pressing plate and the locking bolt, is suitable for clamping the welding test plates with various specifications, and is convenient to assemble and disassemble; wire rope and base swing joint are passed through to the both sides on one of them stand top, the handling of the welding platform of being convenient for and automatic weld equipment and welding platform's assembly use, above-mentioned automatic weld welding platform structure is exquisite, and is reliable and stable, the dismouting transportation is convenient, can be safe, accomplish full-capacity storage tank wallboard vertical joint automatic weld's of liquefied natural gas welder training, work such as process test reliably, for effectively reducing the welding quality human factor influence in the storage tank wallboard installation, stabilize welding quality and improve the security performance of LNG storage tank and prolong its life provide key auxiliary equipment.

Drawings

Fig. 1 is a schematic overall structure diagram of an automatic vertical seam welding platform for a wall plate of a main vessel of a liquefied natural gas full-capacity storage tank according to the invention.

Fig. 2 is a schematic diagram of a use state of an automatic vertical seam welding platform for a wall plate of a main vessel of a liquefied natural gas full-capacity storage tank according to the invention.

Reference numerals: 1-a base; 2-welding the frame; 3-a fixing component; 4-a support; 5-hoisting parts; 6-automatic welding equipment; 11-a cross-bar; 12-a longitudinal bar; 13-leveling bolts; 21-erecting a rod; 22-upper transverse plate; 23-a lower transverse plate; 31-a vertical plate; 32-a locking member; 33-welding a test plate; 41-connecting plate; 61-a travelling wheel; 62-a support wheel; 321-pressing plate.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

As shown in fig. 1 and fig. 2, an lng full-capacity storage tank main vessel wall panel vertical seam automatic welding platform includes: the welding frame 2 is detachably connected to the base 1 and is arranged along the horizontal extending direction of the base 1 and perpendicular to the base 1, a supporting piece 4 detachably connected with the base 1 is arranged on one side of the welding frame 2, and a hoisting piece 5 movably connected with the base 1 is arranged on the other side of the welding frame 2; the fixing assembly 3 is arranged on the welding frame 2 along the vertical direction and is used for being matched with automatic welding equipment 6.

The automatic vertical seam welding platform for the wall plate of the main container of the liquefied natural gas full-capacity storage tank comprises a base 1, a welding frame 2 and a welding platform, wherein the base 1 is formed by connecting cross rods 11 and longitudinal rods 12 through bolts; the welding test plate 33 is quickly and safely compressed by the pressing plate 321 and the locking bolt, is suitable for clamping the welding test plates 33 with various specifications, and is convenient to assemble and disassemble; the both sides on one of them stand 21 top are passed through wire rope and base 1 swing joint, the handling of the welding platform of being convenient for and automatic weld equipment 6 and welding platform's assembly use, above-mentioned automatic weld welding platform structure is exquisite, and is reliable and stable, the dismouting transportation is convenient, can be safe, accomplish liquefied natural gas full-capacity storage tank wallboard vertical joint automatic weld's welder training reliably, work such as process test, for effectively reducing the welding quality human factor influence in the storage tank wallboard installation, stabilize welding quality and improve the security performance of LNG storage tank and prolong its life provide key auxiliary equipment.

As shown in fig. 1 and 2, the base 1 is enclosed by two transverse rods 11 and two longitudinal rods 12, wherein the transverse rods 11 are detachably connected with the longitudinal rods 12 through bolts, so as to facilitate disassembly, assembly and transportation, and the welding frame 2 is vertically arranged on the central line of the longitudinal rods 12.

As shown in fig. 1 and 2, the welding frame 2 includes vertical rods 21, an upper horizontal plate 22 and a lower horizontal plate 23, the two vertical rods 21 are respectively and vertically connected to the base 1, namely, a vertical rod 21 is vertically installed on each vertical rod 12, the upper horizontal plate 22 is detachably connected to the top ends of the two vertical rods 21, the lower horizontal plate 23 is detachably connected to the bottom ends of the two vertical rods 21, the lower horizontal plate 23 is located above the base 1, wherein the vertical rods 21 and the upper horizontal rod 22, and the vertical rods 21 and the lower horizontal rod 23 are both connected by bolts, so as to facilitate disassembly and transportation, it is understood that when the automatic welding equipment 6 is lifted to the base 1, the traveling wheels 61 at the top end of the automatic welding equipment 6 are abutted to the upper horizontal plate 22, and the supporting wheels 62 of the automatic welding equipment 6 are located at both sides of the lower horizontal plate 23 for abutting, so that the automatic welding equipment 6 can stably move in the welding platform.

As shown in fig. 1 and 2, the fixing assembly 3 includes a vertical plate 31, a locking member 32 and a welding test plate 33, two ends of the vertical plate 31 are respectively and fixedly connected with the upper horizontal plate 22 and the lower horizontal plate 23, the locking member 23 is a plurality of and is uniformly spaced from top to bottom on one side of the vertical plate 31 facing the hoisting member 5, the welding test plate 33 is connected to the locking member 32 and is used in cooperation with the automatic welding device 6, wherein the locking member 32 includes a pressing plate 321 and locking bolts (not shown in the figure), the pressing plates 321 are two and are symmetrically arranged on the front and back sides of one side of the vertical plate 31, the locking bolts are in threaded connection with one of the pressing plates 321, namely, the welding test plate 33 is connected to the middle of the two pressing plates 321 and is locked by the locking bolts, the plurality of the locking members 32 are arranged, so as to effectively guarantee the welding accuracy of the welding test plate 33 in the welding process, and reduce the welding deformation of the welding test plate 33.

As shown in fig. 1, the supporting members 4 are two diagonal braces which are respectively arranged at two sides of the welding frame 2, wherein the top ends of the two diagonal braces are detachably connected with the welding frame 2 through the connecting plate 41, the diagonal braces can effectively increase the strength of the connecting structure between the welding frame 2 and the base 1, and the safety factor of the welding platform in the using process is improved.

As shown in fig. 1, hoist and mount piece 5 is for having the wire rope that adjusts the joint, and wire rope is two and detachably connects in the both sides of welded frame 2, and the handling and the assembly of welded platform self of being convenient for are equally, when automatic weld equipment 6 is not convenient for get into welded platform from both sides around the welded frame 2, can dismantle wire rope fast, then get into automatic weld equipment 6 from the welded platform side, convenient operation just is convenient for assemble and disassemble.

As shown in fig. 1 and 2, leveling bolts 13 are respectively arranged at four corners of the base 1, so that the base 1 and the welding platform can be conveniently used for leveling the whole, and the accuracy of the welding platform and the automatic welding equipment 6 in matching use is improved.

As shown in fig. 1 and fig. 2, the lng full-capacity storage tank main vessel wall plate vertical seam automatic welding platform of the present invention is used as follows: the method comprises the steps of firstly, quickly connecting all parts by using bolts, adjusting leveling bolts 13 to keep the base 1 of the whole welding platform stable, hoisting automatic welding equipment 6 to enter the welding platform, enabling walking wheels 61 of the automatic welding equipment 6 to be abutted against an upper transverse plate 22, clamping supporting wheels 62 of the automatic welding equipment 6 at two sides of a lower transverse plate 23 along the length extending direction of the lower transverse plate, loosening locking bolts, clamping welding test plates 33 to a pressing plate 321, locking the welding test plates 33 by using the locking bolts, operating the automatic welding equipment 6 to walk to the positions of the welding test plates 33 to perform welding process operation, wherein when the automatic welding equipment 6 is hoisted to enter the welding platform in the vertical direction, steel wire ropes do not need to be disassembled.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.