Low-temperature liquid medium storage container and structure and arrangement method of metal film on inner wall of low-temperature liquid medium storage container

Abstract

The invention relates to a low-temperature liquid medium storage container and a construction and arrangement method of a metal film on the inner wall of the low-temperature liquid medium storage container, and belongs to the technical field of low-temperature liquid medium storage. The structure of the metal film comprises a top surface film, a right side surface film, a bottom surface film, a left side surface film, four transition surface films, a front surface film and a back surface film which are respectively arranged on the top surface, the right side surface, the bottom surface, the left side surface, four transition surfaces, the front surface and the back surface of the annular side surface of the low-temperature liquid medium storage container, the top surface film, the right side surface film, the bottom surface film and the left side surface film are respectively connected with the four transition surface films to form an annular side surface film; and the front film and the back film are connected through the annular side film to form a totally-closed three-dimensional film.

Description

Technical Field

[0001] The present invention belongs to the technical field of cryogenic liquid medium storage, and in particular relates to a cryogenic liquid medium storage container and a structure and arrangement method of a metal film on its inner wall. Background Art

[0002] Under the multiple pressures of the "dual carbon" goal and ensuring people's livelihood and stabilizing production, my country's traditional energy industry has entered a period of transformation and upgrading. From the perspective of primary energy, coal consumption must be controlled, while LNG, L H2 Some efficient and clean energy sources have the characteristics of high calorific value and low pollution, and are important energy sources for achieving low carbonization in the future. At this stage, LNG has become an important alternative energy source for emission reduction in my country. Its industrial scale has developed rapidly and has become an important part of my country's energy security. Many new and expanded receiving station projects have appeared in the Bohai Rim, Yangtze River Delta and Pearl River Delta regions. LNG filling stations have also been built in the riverside areas. The business of directly filling intercontinental cruise / cargo ships with LNG at sea continues to reach new heights, which will greatly promote the storage and transportation of LNG at sea and on land in my country. In addition, the international trade of LH2 and some other new energy sources has also shown new positive development trends. These have put forward new demands for the storage and transportation of cryogenic liquid media.

[0003] The existing low-temperature liquid media are mainly transported and stored on land by tank trucks and cryogenic storage tanks. Tank truck transportation uses a container formed by rolling and welding steel plates of a certain thickness and then attaching insulation materials. Therefore, the overall weight is heavy, and the road carrying capacity is limited, which reduces the transportation volume of low-temperature liquid media. In addition, due to the width and height of the road, the container made of thick steel plates also limits the effective capacity of the container to a certain extent. The cryogenic storage tank on land is a large storage container for cryogenic liquid media. At present, most of the storage tanks in China are built with full-capacity tank technology. The inner tank is made of low-temperature resistant 06Ni9DR steel plate, which can withstand low-temperature stress and meet strength requirements. Because the inner tank of the full-capacity tank adopts a self-supporting structure, it must be resistant to low temperatures and withstand strength requirements, so the amount of steel used is large. The thickness of the thickest steel plate reaches nearly 40mm. A 270,000 cubic meter storage tank requires a total amount of steel of more than 3,000t.

[0004] The main methods of transporting and storing cryogenic liquid media at sea are LNG or L H2Transport ships, the ship's tank system has two types: independent and membrane types. Independent tanks are independent of the hull. Generally, 4-5 tanks are installed on a ship, but this type of independent shipboard tank is heavy and has a small effective space, which limits the economy of sea transportation. Membrane-type cabin storage tanks have been favored by shipowners in recent years because of their low metal consumption in construction, large effective volume of the inner cabin, and strong impact resistance of the cabin structure. However, for this technology, foreign technology manufacturers occupy an absolute dominant position in the global membrane ship or tank field. Membrane ships also have several complete cabins independently set up, and each cabin generally presents a standard cabin type such as a regular octagon. At present, the membrane layout design of the regular octagonal inner cabin is all from foreign design companies. When manufacturing membrane transport ships, my country needs to pay huge patent usage and technical service fees, which seriously restricts my country's LNG and L H2 The design and manufacture of transport ships also pose a potential threat to my country's maritime energy trade.

[0005] In short, my country currently lacks independently developed thin film layout technology for low-temperature liquid medium storage containers. Summary of the invention

[0006] In view of the above problems, the purpose of the present invention is to provide a low-temperature liquid medium storage container and a structure and arrangement method of the metal film on the inner wall thereof, so as to solve the problem that my country currently lacks independently created film arrangement technology for low-temperature liquid medium storage containers.

[0007] To achieve the above object, the present invention adopts the following technical solutions: In a first aspect, the present invention discloses a cryogenic liquid medium storage container, comprising a front face, a back face and an annular side face, wherein the longitudinal cross-sections of the front face, the back face and the annular side face are all regular octagons; Wherein, the annular side surface includes a top surface, a right side surface, a bottom surface, a left side surface and four transition surfaces, the top surface, the right side surface, the bottom surface, the left side surface and each transition surface are rectangular, and the top surface, the right side surface, the bottom surface and the left side surface are respectively connected by transition surfaces to form the annular side surface; The front surface and the back surface are parallel to each other and connected through the annular side surface to form a fully enclosed container.

[0008] Preferably, the angles between the top surface, right side surface, bottom surface and left side surface of the annular side surface and the adjacent transition surface are all 135 degrees; the angles between the front surface and the back surface and the top surface, right side surface, bottom surface, left side surface and transition surface of the annular side surface are all 90 degrees; the front surface and the back surface form a common point with the top surface, right side surface, bottom surface, left side surface and the adjacent transition surface.

[0009] In a second aspect, the present invention further discloses a metal film structure for adhering to and covering the inner wall of the above-mentioned low-temperature liquid medium storage container, comprising: An annular side film, comprising a top film, a right side film, a bottom film, a left side film, and four transitional film, wherein the top film, the right side film, the bottom film, and the left side film are respectively arranged on the top surface, the right side surface, the bottom surface, and the left side surface of the annular side of the cryogenic liquid medium storage container, and the four transitional film are respectively arranged on four transitional surfaces, and the top film, the right side film, the bottom film, and the left side film are respectively connected to the four transitional film to form the annular side film; A front film and a back film are respectively arranged on the front and back of the low-temperature liquid medium storage container. The front film and the back film are connected through the annular side film to form a fully enclosed three-dimensional film.

[0010] Furthermore, it also includes a plurality of 135-degree angle-turned membranes, and the top surface film, the right side film, the bottom surface film, the left side film and the four transition surface films are respectively connected through the 135-degree angle-turned membranes.

[0011] Furthermore, the top film and the bottom film are respectively provided with a plurality of transverse arched strips and a plurality of longitudinal arched strips protruding outward, and the longitudinal arched strips of the top film and the bottom film are perpendicular to the transverse arched strips, and the plurality of transverse arched strips and the plurality of longitudinal arched strips are mutually staggered in transverse and longitudinal directions; The right side film, the left side film and the four transition surface films are respectively provided with a plurality of transverse arched strips and a plurality of vertical arched strips protruding outwards, and the vertical arched strips of the right side film, the left side film and the four transition surface films are perpendicular to the transverse arched strips, and the plurality of transverse arched strips and the plurality of vertical arched strips are mutually staggered horizontally and vertically; When the top film, the right side film, the bottom film, the left side film and the four transition surface films are respectively connected through the 135-degree angle membrane, several transverse circular arch strips of the top film and the bottom film are respectively connected with the vertical circular arch strips of the right side film, the left side film and the transition surface film in sequence along the circumferential direction, and the 135-degree angle membrane is provided with circular arch strips, and the connection points of the transverse circular arch strips of the top film and the bottom film and the vertical circular arch strips of the right side film, the left side film and the four transition surface films are connected through the circular arch strips of the matching 135-degree angle membrane to obtain several complete annular arches on the X-axis, and the normal vector of the plane where each complete annular arch on the X-axis is located is the same as the normal vector of the front side of the low-temperature liquid medium storage container.

[0012] Furthermore, it also includes a plurality of 90-degree angle films and a plurality of elbow films, wherein the front film is respectively connected to the top film, the right side film, the bottom film, the left side film and the transition film of the annular side film through the 90-degree angle films, and the front film is respectively connected to the top film, the right side film, the bottom film, the left side film and the adjacent transition surfaces at the common points of the three surfaces through the elbow films; The back film is connected to the top film, the right side film, the bottom film, the left side film and the transition surface film of the annular side film through 90-degree corner films, and the back film is connected to the top film, the right side film, the bottom film, the left side film and their adjacent transition surfaces at the common points through the elbow film, thereby forming a fully enclosed three-dimensional film.

[0013] Furthermore, the front film and the back film are respectively provided with a plurality of transverse arched strips and a plurality of vertical arched strips protruding outwards, and the transverse arched strips are perpendicular to the vertical arched strips, and the plurality of transverse arched strips and the plurality of vertical arched strips are crisscrossed with each other; When the front film and the back film are connected through the annular side film, the vertical arched strip of the front film, the longitudinal arched strip of the top film of the annular side film, the vertical arched strip of the back film and the longitudinal arched strip of the bottom film of the annular side film are sequentially connected along the annular direction, and the 90-degree angle film is provided with an arched strip, and the connection between the vertical arched strips of the front film and the back film and the longitudinal arched strips of the top film and the bottom film of the annular side film is connected through the arched strip of the 90-degree angle film, so as to obtain a plurality of complete annular arches on the Y axis, and the normal vector of the plane where each complete annular arch on the Y axis is located is the same as the normal vector of the right side surface of the low-temperature liquid medium storage container; At the same time, the transverse circular arch strips of the front film and the back film are respectively connected with the transverse circular arch strips of the right side film, the left side film and the four transition surface films of the annular side film in sequence along the circumferential direction, and the connecting parts of the transverse circular arch strips of the front film and the back film and the transverse circular arch strips of the right side film, the left side film and the four transition surface films of the annular side film are connected by the circular arch strips of the 90-degree angle film, so as to obtain a plurality of Z-axis complete circular arches, and the normal vector of the plane where each Z-axis complete circular arch is located is the same as the normal vector of the top surface of the low-temperature liquid medium storage container; Correspondingly, the elbow membrane is configured with arched strips, and the transverse arched strips or vertical arched strips of the front film and the back film at the common point of the three surfaces are respectively connected to the longitudinal arched strips or transverse arched strips of the top film and the bottom film and the transverse arched strips or vertical arched strips of the four transition surface films at the connection points through the arched strips of the elbow membrane, and the transverse arched strips or vertical arched strips of the front film and the back film at the common point of the three surfaces are respectively connected to the vertical arched strips or transverse arched strips of the right side film and the left side film and the transverse arched strips or vertical arched strips of the four transition surface films at the connection points through the arched strips of the elbow membrane.

[0014] Furthermore, stainless steel strips are pre-embedded at the junctions of the front surface of the cryogenic liquid medium storage container and the top surface, right side surface, bottom surface, left side surface and transition surface of the annular side surface, and the front film is welded to the pre-embedded stainless steel strips at the junctions of the annular side film; Stainless steel strips are pre-embedded at the junctions of the back side of the low-temperature liquid medium storage container with the top side, right side, bottom side, left side and transition surface of the annular side surface, and the back film is welded to the pre-embedded stainless steel strips at the junctions with the annular side film.

[0015] In a third aspect, the present invention discloses a method for arranging an inner wall film of a cryogenic liquid medium storage container, which is used to prepare the above-mentioned metal film structure on the inner wall of the above-mentioned cryogenic liquid medium storage container, comprising: Step A: Arranging a film on the annular side of the cryogenic liquid medium storage container to form an annular side film, comprising the following steps: Step A1: respectively manufacturing a top film, a right film, a bottom film, a left film, four transitional films and a plurality of 135-degree corner films; Step A2: Arranging the top surface film, the right surface film, the bottom surface film, the left surface film and the four transition surface films on the top surface, the right surface, the bottom surface, the left surface and the four transition surface films of the low-temperature liquid medium storage container, and respectively arranging the 135-degree angle film at the edges of the 135-degree angle between the top surface, the right surface, the bottom surface and the left surface and the adjacent transition surface, and connecting the top surface film, the right surface film, the bottom surface film, the left surface film and the four transition surface films through the 135-degree angle film to form an annular side film; Step B: respectively making a front film, a back film and a plurality of 90-degree angle films, welding the edges of the front film and the back film to the low-temperature liquid medium storage container, and respectively setting the 90-degree angle films at both ends of the annular side film to form a fully enclosed three-dimensional film, including the following steps: Step B1: preparing a front film and a back film respectively, and arranging the front film and the back film on the front and the back respectively; Step B2: welding the front surface of the low-temperature liquid medium storage container and the connection between the top surface, right side surface, bottom surface, left side surface and transition surface of the annular side surface respectively, respectively, with the stainless steel strips pre-embedded in the connection between the front surface of the low-temperature liquid medium storage container and the top surface, right side surface, bottom surface, left side surface and transition surface of the annular side surface respectively, and welding the back surface film respectively; Step B3: making a plurality of 90-degree corner films, and respectively setting the 90-degree corner films at the connection between the front film and the top film, the right film, the bottom film, the left film and the transition film of the annular side surface, and respectively setting the 90-degree corner films at the connection between the back film and the top film, the right film, the bottom film, the left film and the transition film of the annular side surface, and the 90-degree corner films cover the welds produced by the stainless steel strips; Step C: Make a number of elbow membranes, and respectively set them at the common points of the three surfaces formed by the front film and the top film, right side film, bottom film, left side film and the adjacent transition surface film of the annular side film, and at the common points of the three surfaces formed by the back film and the top film, right side film, bottom film, left side film and the adjacent transition surface film of the annular side film, and connect the films at the top points of the low-temperature liquid medium storage container through the annular side film to form a fully enclosed three-dimensional membrane.

[0016] Wherein, in the step A1, the top film and the bottom film are respectively provided with a plurality of transverse arched strips and a plurality of longitudinal arched strips in a crisscross pattern, the right film, the bottom film, the left film and the four transitional films are respectively provided with a plurality of transverse arched strips and a plurality of vertical arched strips in a crisscross pattern, and the 135-degree angled film is provided with an arched strip; In step A2, the top film, the right film, the bottom film and the left film are connected in sequence with the lateral circular arch strips of the adjacent transition film along the circumferential direction, and the connection points of the lateral circular arch strips of the top film and the bottom film and the vertical circular arch strips of the right film, the left film and the four transition film are connected by the circular arch strips of the adapted 135-degree angle film to obtain a plurality of complete annular circular arches on the X axis; In the step B3, the 90-degree angle film is provided with an arched strip, and the vertical arched strips of the front film and the back film and the longitudinal arched strips of the top film and the bottom film of the annular side film are connected at the connection points through the arched strips of the 90-degree angle film to obtain a plurality of complete annular arches along the Y axis; the transverse arched strips of the front film and the back film and the transverse arched strips of the right side film, the left side film and the four transitional surface films of the annular side film are connected at the connection points through the arched strips of the 90-degree angle film to obtain a plurality of complete annular arches along the Z axis; In step C, the elbow membrane is configured with arched strips, and the transverse arched strips or vertical arched strips of the front film and the back film at the common point of the three surfaces are respectively connected to the longitudinal arched strips or transverse arched strips of the top film and the bottom film and the transverse arched strips or vertical arched strips of the four transition surface films at the connection points through the arched strips of the elbow membrane, and the transverse arched strips or vertical arched strips of the front film and the back film at the common point of the three surfaces are respectively connected to the vertical arched strips or transverse arched strips of the right side film and the left side film and the transverse arched strips or vertical arched strips of the four transition surface films at the connection points through the arched strips of the elbow membrane.

[0017] Compared with the prior art, the present invention has the following beneficial effects: (I) The present invention discloses a cryogenic liquid medium storage container and a structure and arrangement method of a metal film on its inner wall, wherein the cryogenic liquid medium storage container is used to store LNG, L H2 The metal film adheres to and covers the inner wall of the low-temperature liquid medium storage container to form a structure, so as to obtain a fully enclosed metal container with the ability to resist low temperature and impact with the film arranged on the inner wall as a whole. This not only increases the overall rigidity of the container, but also offsets the low-temperature stress and strain, thereby improving the ability to resist low temperature.

[0018] (ii) The present invention discloses a low-temperature liquid medium storage container and a method for arranging a metal film on its inner wall. A metal film plate is arranged on the inner surface of the container. The longitudinal and transverse deformations of the criss-cross protruding arches on the film plate are used to meet the stress and strain requirements of the container under low-temperature conditions and swaying conditions, thereby ultimately achieving overall stability of the container.

[0019] (III) The present invention discloses a low-temperature liquid medium storage container and a method for constructing and arranging a metal film on its inner wall, which can replace the original independent storage tank structure on board, thereby saving construction materials, reducing the overall weight of the container, shortening the construction period, and improving the economy of the container. The container constructed using this technology is suitable for the transportation of low-temperature liquid media at sea and on land, thereby realizing the use of this technology to increase the economy of marine transportation.

[0020] (IV) The present invention discloses a low-temperature liquid medium storage container and a structure and arrangement method of a metal film on its inner wall, which is a domestic first. There is no similar design and arrangement method in the existing structural design of low-temperature liquid medium containers. Specifically, thin plates (1.2-1.5mm) are pressed into components of different shapes and sizes with circular arches. These film components are arranged on the inner wall of the container in sequence, so that the circular arches on the inner wall of the container are connected together to form a sealed channel, and finally a "well" layout is formed, which can offset the low-temperature strain and stress generated in all directions. The above-mentioned layout design method can be continuously expanded to containers of other shapes, and can be applied to the construction of land storage tanks and offshore membrane cabins. It will further promote the design and manufacturing level of low-temperature liquid medium containers, greatly reduce construction costs and construction costs, and improve overall economic benefits.

[0021] (V) The present invention discloses a cryogenic liquid medium storage container and a structure and arrangement method of a metal film on its inner wall. In combination with actual needs, an innovative film arrangement method for a cryogenic liquid medium storage container is proposed. According to the design and arrangement method, the storage of cryogenic liquid medium on land and at sea can be realized, so as to reduce manufacturing costs, increase effective transportation space, and improve transportation economy and safety, so as to change the existing LNG and L H2 transportation status, in the hope that this new method will be more widely used.

[0022] In addition, the present invention also has the following advantages: (1) Using 1.2-1.5mm thin plate special rectangular film and other components as raw materials, under the premise of the same effective volume, compared with the original steel plate container, metal materials can be saved by more than 70%.

[0023] (2) The rectangular membranes are connected to form an integrally enclosed container with a connected circular arch through specially made 135°, 90° and elbow films. The strength and rigidity of the container are enhanced, and it has better resistance to low-temperature stress and strain than the original steel plate container. This is a good use benefit resulting from structural optimization.

[0024] (3) This invention is a technological replacement for traditional cryogenic liquid containers, and has made improvements in design principles, manufacturing methods, construction costs, performance, etc., while further improving the benefits of the cryogenic liquid transportation industry. It lays a foundation for the further development of cryogenic liquid container technology in the future. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional view of the overall structure of a cryogenic liquid medium storage container provided in Example 1 of the present invention; Figure 2 A dimensional diagram of the front side of the cryogenic liquid medium storage container provided in Example 1 of the present invention; Figure 3 A schematic diagram of the structure of a metal film attached to and filled with the inner wall of a cryogenic liquid medium storage container provided in Example 2 of the present invention, wherein the front side is omitted for the convenience of observing the interior; Figure 4 A schematic diagram of the structure of a metal film in a cryogenic liquid medium storage container provided in Example 2 of the present invention; Figure 5 A front schematic diagram of a rectangular unit of a metal film provided in Example 2 of the present invention; Figure 6 for Figure 5 A three-dimensional view of the back side of a rectangular unit cell of a metal film; Figure 7 for Figure 5 A back view of a rectangular unit cell of a metal film; Figure 8 A schematic structural diagram of a 135-degree rotating cornea provided in Example 2 of the present invention; Fig. 9 A schematic diagram of the structure of a 90-degree angled cornea provided in Example 2 of the present invention; Fig.10 This is a schematic structural diagram of the elbow membrane provided in Example 2 of the present invention.

[0026] Fig.11 This is a dimensional diagram of the arched strip provided in Example 2 of the present invention. DETAILED DESCRIPTION

[0027] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0028] Example 1: A cryogenic liquid medium storage container Embodiment 1 provides a low-temperature liquid medium storage container, and its structure is described in detail below with reference to the accompanying drawings.

[0029] refer to Figure 1 The cryogenic liquid medium storage container is a steel plate container, including a front side, a back side and an annular side surface. The cross-sections of the front, back and circular sides are all regular octagons; The annular side surface includes a top surface, a right side surface, a bottom surface, a left side surface and four transition surfaces, the top surface, the right side surface, the bottom surface, the left side surface and each transition surface are rectangular, and the top surface, the right side surface, the bottom surface and the left side surface are respectively connected by transition surfaces to form the annular side surface; The front and back sides are parallel to each other and connected through the annular side faces to form a fully enclosed container.

[0030] Specifically, a transition surface is formed between the top surface and the right side surface, a transition surface is formed between the right side surface and the bottom surface, a transition surface is formed between the bottom surface and the left side surface, and a transition surface is formed between the left side surface and the top surface, thereby forming an annular side surface.

[0031] Specifically, the front surface and the back surface are symmetrical about the perpendicular plane of the annular side surface.

[0032] Specifically, refer to Figure 2 The dimensions of the octagon on the front and back are: the length of the side corresponding to the top and bottom is 2336mm, the side corresponding to the transition surface (i.e. the length of the chamfered side) is 1281mm, and the width of the side corresponding to the right and left sides is 2548mm. The specific production method is: chamfer 45 degrees at the four corners of the 4148mm×4360mm rectangular plate, and the chamfered side length is 1281mm to form the above symmetrical octagon as the front and back.

[0033] Specifically, the dimensions of each surface of the annular side surface are as follows: the rectangular dimensions of the top surface and the bottom surface are 2336×4500 mm; the rectangular dimensions of the right side surface and the left side surface are 2548×4500 mm; and the rectangular dimensions of the transition surface are 1281×4500 mm.

[0034] As a specific implementation method, the top surface, right side surface, bottom surface, left side surface and four transition surfaces of the annular side surface are all metal components and are connected into one body or formed as one piece by welding; the front and back surfaces are both metal components, and the front and back surfaces are respectively connected to the top surface, right side surface, bottom surface, left side surface and four transition surfaces of the annular side surface by welding to obtain a fully enclosed container made of metal material.

[0035] It should be noted that the angles between the top surface, right side surface, bottom surface and left side surface of the annular side surface and the adjacent transition surfaces are 135 degrees, that is, the angles between the top surface of the annular side surface and the transition surfaces at both ends, the angles between the right side surface and the transition surfaces at both ends, the angles between the bottom surface and the transition surfaces at both ends, and the angles between the left side surface and the transition surfaces at both ends are all 135 degrees, that is, a total of 8 adjacent angles of 135 degrees are formed; The angle between the front surface and the top surface, right side surface, bottom surface, left side surface and transition surface of the annular side surface is 90 degrees, and the angle between the back surface and the top surface, right side surface, bottom surface, left side surface and transition surface of the annular side surface is 90 degrees, forming a total of 16 adjacent 90-degree angles; And the front and back sides respectively form three common points with the top side, right side, bottom side, left side and their adjacent transition surfaces, that is: the front side and the top side and its adjacent transition surface form three common points respectively, the front side and the right side and its adjacent transition surface form three common points respectively, the front side and the bottom side and its adjacent transition surface form three common points respectively, and the front side and the left side and its adjacent transition surface form three common points respectively, that is, the front side and the annular side form 8 three common points; similarly, the back side and the top side and its adjacent transition surface form three common points respectively, the back side and the right side and its adjacent transition surface form three common points respectively, the back side and the bottom side and its adjacent transition surface form three common points respectively, and the back side and the left side and its adjacent transition surface form three common points respectively, that is, the back side and the annular side form 8 three common points, forming a total of 16 three common points.

[0036] Furthermore, in order to facilitate the sewing of the joints between the front and back films and the annular side films in Examples 2 and 3 below, stainless steel strips are pre-embedded at the joints between the front side of the low-temperature liquid medium storage container and the top, right side, bottom, left side and transition surface of the annular side, and stainless steel strips are pre-embedded at the joints between the back side and the top, right side, bottom, left side and transition surface of the annular side, i.e., stainless steel strips are pre-embedded at a total of 16 adjacent 90-degree angles.

[0037] Specifically, the width of the stainless steel strip is 250 mm.

[0038] It should be noted that in order to facilitate the construction of film arrangement, a construction hole is reserved on the top surface of the annular side surface. After the film construction is completed, the construction hole is sealed. Since this is a common practice for film construction inside containers, it will not be repeated here.

[0039] Example 2: Structure of a metal film In order to enhance the low-temperature resistance of the low-temperature liquid medium storage container of Example 1, Example 2 provides a metal film structure, which is a layer of film formed by a metal thin plate attached to and spread on the inner wall of the low-temperature liquid medium storage container of Example 1. Its structure is described in detail below in conjunction with the accompanying drawings.

[0040] refer to Figure 3 and Figure 4 The structure of the metal film includes an annular side film, a front film, a back film, 8 edges with 135-degree corner turns, 16 edges with 90-degree corner turns and 16 vertices of elbow films.

[0041] The front film and the back film are arranged on the front and the back of the low-temperature liquid medium storage container respectively, and the front film and the back film are connected through the annular side film to obtain a fully enclosed three-dimensional film.

[0042] Specifically, the annular side film includes a top surface film, a right side film, a bottom surface film, a left side film, and four transition surface films, wherein the top surface film, the right side film, the bottom surface film, and the left side film are respectively arranged on the top surface, right side surface, bottom surface, and left side surface of the annular side of the low-temperature liquid medium storage container, and the four transition surface films are respectively arranged on the four transition surfaces, and the top surface film, the right side film, the bottom surface film, and the left side film are respectively connected to the four transition surface films to form the annular side film.

[0043] Specifically, the structure of the metal film also includes a plurality of 135-degree angle films, and the top film, the right side film, the bottom film, the left side film and the four transition surface films are respectively connected through the 135-degree angle films.

[0044] In order to offset low temperature stress and strain and increase the overall rigidity of the container to enhance the impact resistance, the top film and the bottom film are respectively provided with a plurality of transverse arched strips and a plurality of longitudinal arched strips, and the longitudinal arched strips of the top film and the bottom film are perpendicular to the transverse arched strips, and the plurality of transverse arched strips and the plurality of longitudinal arched strips are mutually staggered horizontally and vertically, such as Figures 5 to 7 shown.

[0045] The right side film, the left side film and the four transition surface films are outwardly protruded and are respectively provided with a plurality of transverse arched strips and a plurality of vertical arched strips, and the vertical arched strips of the right side film, the left side film and the four transition surface films are perpendicular to the transverse arched strips, and the plurality of transverse arched strips and the plurality of vertical arched strips are mutually staggered horizontally and vertically. Figures 5 to 7 .

[0046] When the top film, the right film, the bottom film, the left film and the four transition film are connected to each other through the 135-degree angle film, the plurality of transverse arcuate strips of the top film and the bottom film are connected to the vertical arcuate strips of the right film, the left film and the transition film in sequence along the circumferential direction, and the 135-degree angle film is provided with arcuate strips, such as Figure 8 As shown, the connection parts of the transverse circular arch strips of the top film and the bottom film and the vertical circular arch strips of the right side film, the left side film and the four transition surface films are connected by the circular arch strips of the adaptive 135-degree angle film to obtain a plurality of X-axis complete annular arches, and the normal vector of the plane where each X-axis complete annular arch is located is the same as the normal vector of the front side of the low-temperature liquid medium storage container.

[0047] Among them, the transverse arched strips of the top film and the bottom film and the vertical arched strips of the right side film, the left side film and the four transitional surface films are connected by the arched strips on the 135-degree angle film, which helps to make the several transverse arched strips of the top film, the vertical arched strips of the right side film, the several transverse arched strips of the bottom film, the vertical arched strips of the left side film and the vertical arched strips of the four transitional surface films smoothly connected, such as Figure 3 and Figure 4 shown.

[0048] In order to increase the impact resistance of the connection between the front film and the annular side film, the structure of the metal film includes a plurality of 90-degree corner films and a plurality of elbow films.

[0049] The front film is connected to the top film, the right side film, the bottom film, the left side film and the transition surface film respectively through 90-degree angle film, and the front film is connected to the top film, the right side film, the bottom film, the left side film and their adjacent transition surfaces at three common points through elbow film; the back film is connected to the top film, the right side film, the bottom film, the left side film and the transition surface film respectively through 90-degree angle film, and the back film is connected to the top film, the right side film, the bottom film, the left side film and their adjacent transition surfaces at three common points through elbow film, thereby forming a fully enclosed three-dimensional film.

[0050] Furthermore, the front film and the back film are respectively provided with a plurality of transverse arched strips and a plurality of vertical arched strips protruding outwards, and the transverse arched strips are perpendicular to the vertical arched strips, and the plurality of transverse arched strips and the plurality of vertical arched strips are crisscrossed with each other; When the front film and the back film are connected through the annular side film, the vertical arched strip of the front film, the longitudinal arched strip of the top film of the annular side film, the vertical arched strip of the back film and the longitudinal arched strip of the bottom film of the annular side film are sequentially connected along the annular direction, and the 90-degree corner film is provided with an arched strip, such as Fig. 9 As shown, the connection points of the vertical circular arch strips of the front film and the back film and the longitudinal circular arch strips of the top film and the bottom film of the annular side film are connected by circular arch strips of 90-degree angle films, so as to obtain a plurality of Y-axis complete circular arches, and the normal vector of the plane where each Y-axis complete circular arch is located is the same as the normal vector of the right side surface of the low-temperature liquid medium storage container; At the same time, the transverse circular arch strips of the front film and the back film are respectively connected with the transverse circular arch strips of the right side film, the left side film and the four transition surface films of the annular side film in sequence along the circumferential direction, and the connection points of the transverse circular arch strips of the front film and the back film and the transverse circular arch strips of the right side film, the left side film and the four transition surface films of the annular side film are connected by the circular arch strips of the adapted 90-degree angle film, so as to obtain a plurality of Z-axis complete circular arches, and the normal vector of the plane where each Z-axis complete circular arch is located is the same as the normal vector of the top surface of the low-temperature liquid medium storage container; Accordingly, the elbow membrane is provided with a rounded arch strip, such as Fig.10As shown, the transverse arched strips or vertical arched strips of the front film and the back film at the common point of the three surfaces are respectively connected to the longitudinal arched strips or transverse arched strips of the top film and the bottom film and the transverse arched strips or vertical arched strips of the four transition surface films at the connection points through the arched strips of the elbow film, and the transverse arched strips or vertical arched strips of the front film and the back film at the common point of the three surfaces are respectively connected to the vertical arched strips or transverse arched strips of the right side film and the left side film and the transverse arched strips or vertical arched strips of the four transition surface films at the connection points through the arched strips of the elbow film.

[0051] Among them, the complete annular arch of the X axis, the complete annular arch of the Y axis and the complete annular arch of the Z axis together constitute a three-dimensional closed arched strip channel of x, y and z. The closed arched strip channel is crisscrossed on any plane of the low-temperature liquid medium storage container to form a completely closed "well" layout, which can offset the low-temperature strain and stress generated in all directions. At the same time, it is equivalent to adding a circle of criss-crossing reinforcement rings to the inner wall of the entire container, thereby increasing the rigidity of the inner tank of the container.

[0052] Specifically, the arches of the transverse arch strips, the longitudinal arch strips or the vertical arch strips are of equal height and width, specifically, refer to Fig.11 The arch height of the arch strip is h=80mm and the width is 176mm.

[0053] Preferably, a butterfly-shaped node of a circular arch is cross-disposed at the junction of the transverse circular arch bar and the longitudinal circular arch bar or the transverse circular arch bar and the vertical circular arch bar, forming an "X" shape.

[0054] In order to further increase the ability to resist low temperatures, the stainless steel strip embedded in the joint of the front film and the annular side film is welded, and the front film is welded together with the top film, the right side film, the bottom film, the left side film and the transition surface film respectively; the stainless steel strip embedded in the joint of the back film and the annular side film is welded, and the back film is welded together with the top film, the right side film, the bottom film, the left side film and the transition surface film respectively.

[0055] The structure of the metal film is that the horizontal or vertical arched strips, longitudinal or horizontal arched strips in the low-temperature liquid medium storage container are connected into closed channels through the arched strips of the 135-degree angle film, the arched strips of the 90-degree angle film and the arched strips of the elbow film, which can offset the low-temperature stress and strain and increase the overall rigidity of the container. The entire sealed container is connected to the insulation structure outside the film by welding at the film welding point, forming a low-temperature resistant film structure with a cold-keeping effect.

[0056] It should be noted that the film in the present invention is a metal sheet with a thickness of 1.2-1.5 mm.

[0057] Embodiment 3: A method for arranging a metal film on the inner wall of a cryogenic liquid medium storage container Embodiment 3 provides a method for arranging a metal film on the inner wall of a cryogenic liquid medium storage container, which is used to arrange the metal film structure of embodiment 2 on the inner wall of the cryogenic liquid medium storage container of embodiment 1, and the method comprises the following steps: Step A: Arranging a film on the annular side of the cryogenic liquid medium storage container to form an annular side film, comprising the following steps: Step A1: prepare a top film, a right film, a bottom film, a left film, four transition films and several 135-degree corner films respectively. Among them, the top film and the bottom film are respectively provided with a plurality of transverse round arch strips and a plurality of longitudinal round arch strips in a crisscross pattern, the right film, the bottom film, the left film and the four transitional films are respectively provided with a plurality of transverse round arch strips and a plurality of vertical round arch strips in a crisscross pattern, and the 135-degree angled film is provided with round arch strips; Specifically, the top surface film, right surface film, bottom surface film, left surface film, and four transition surface films are rectangular in shape, wherein the dimensions of each surface of the annular side surface are: the rectangular dimensions of the top surface and the bottom surface are 2336×4500mm; the rectangular dimensions of the right surface and the left surface are 2548×4500mm; and the rectangular dimensions of the transition surface are 1281×4500mm.

[0058] More specifically, the top film, right side film, bottom film, left side film and four transition surface films are made of rectangular stainless steel plates with a thickness of 1.2-1.5 mm, and horizontal arched strips and longitudinal arched strips or vertical arched strips are pressed in the length and width directions respectively.

[0059] The bottom film is arranged in such a way that the length of the film is parallel to the length of the bottom surface, and the center line of the first film coincides with the center line of the bottom surface. The remaining films are laid on the left and right of the first film in sequence, and extended to both ends by overlapping 40mm in sequence, and stop at 150mm from the left and right edges of the bottom surface. The above-mentioned size of 150mm can be ensured by cutting the rectangular film at the edge. If a circular arch appears after cutting and the distance from the cutting edge is less than 80mm, the width of the rectangular film needs to be readjusted, and then arranged in the above manner.

[0060] The top film and bottom film are made identically.

[0061] The rear side films are arranged in such a way that the film length is parallel to the rear side height, and the center line of the first film coincides with the center line of the rear side. The remaining films are laid on the left and right of the first film in sequence, and are expanded to the left and right by overlapping 40mm in sequence, and stop at 200mm away from the left and right edges of the rear side. The above-mentioned 200mm size can be ensured by cutting the rectangular film at the edge. If a circular arch appears after cutting and the distance from the cutting edge is less than 80mm, the width of the rectangular film needs to be readjusted, and then arranged in the above manner.

[0062] The front side film and the rear side film are made in the same way.

[0063] The left side film is arranged in such a way that the film length is parallel to the left side length, and the center line of the first film coincides with the center line of the left side. The remaining films are laid on and below the first film in sequence, and are extended upward and downward by overlapping 40mm in sequence, and stop at 150mm from the upper and lower edges of the left side. The above-mentioned size of 150mm can be ensured by cutting the rectangular film at the edge. If a circular arch appears after cutting and the distance from the cutting edge is less than 80mm, the width of the rectangular film needs to be readjusted, and then arranged in the above manner.

[0064] The right side film and the left side film are made in the same way.

[0065] The four transition surface films are arranged along two longitudinal arches in a manner that the film length is parallel to the transition surface length. The center lines of the two longitudinal arches coincide with the center line of the transition surface. The rectangular films are welded in a manner of overlapping each other by 40 mm in sequence, and the extension stops at a distance of 150 mm from the edge of the transition surface. The above-mentioned size of 150 mm can be ensured by cutting the rectangular film at the outermost edge.

[0066] Specifically, the 135-degree angled membrane is made of a rectangular stainless steel plate with a thickness of 1.2-1.5 mm, which is bent 45 degrees in the length direction and then pressed into a circular arch strip along the length direction.

[0067] Step A2: Arranging the top surface film, the right surface film, the bottom surface film, the left surface film and the four transition surface films on the top surface, the right surface, the bottom surface, the left surface and the four transition surface films of the low-temperature liquid medium storage container, and respectively arranging the 135-degree angle film at the edges of the 135-degree angle between the top surface, the right surface, the bottom surface and the left surface and the adjacent transition surface, and connecting the top surface film, the right surface film, the bottom surface film, the left surface film and the four transition surface films through the 135-degree angle film to form an annular side film; The top film, the right film, the bottom film and the left film are connected to the lateral circular arch strips of the adjacent transition film in sequence along the circumferential direction, and the connection points of the lateral circular arch strips of the top film and the bottom film and the vertical circular arch strips of the right film, the left film and the four transition film are connected by the circular arch strips of the adapted 135-degree angle film to obtain a plurality of complete circular arches on the X axis; Step B: respectively making a front film, a back film and a plurality of 90-degree angle films, welding the edges of the front film and the back film to the low-temperature liquid medium storage container, and respectively setting the 90-degree angle films at both ends of the annular side film to form a fully enclosed three-dimensional film, including the following steps: Step B1: preparing a front film and a back film respectively, and arranging the front film and the back film on the front and the back respectively; Specifically, the front film and the back film are prepared by chamfering four corners of a 4148mm×4360mm rectangular film by 45°, with the chamfered side length being 1281mm, to obtain the front film and the back film.

[0068] More specifically, in the 4148mm side length of the front film, a rectangular film (840mm×4080mm) is arranged in the middle, and then a rectangular film (840mm×4080mm) is arranged on each side, and then a non-standard film (770×4080mm) is arranged on each side of the outer film. The films are connected by overlapping 40mm, and the edges of the two side films are 124mm away from the edges of the bottom surface. The longitudinal film is arranged in the middle, and 210mm is left at both ends. In this way, the production of the front film is completed, and the size of the back film is the same as that of the front film.

[0069] Step B2: welding the front surface of the low-temperature liquid medium storage container and the connection between the top surface, right side surface, bottom surface, left side surface and transition surface of the annular side surface respectively, respectively, with the stainless steel strips pre-embedded in the connection between the front surface of the low-temperature liquid medium storage container and the top surface, right side surface, bottom surface, left side surface and transition surface of the annular side surface respectively, and welding the back surface film respectively; Step B3: making a plurality of 90-degree corner films, and respectively setting the 90-degree corner films at the connection between the front film and the top film, the right film, the bottom film, the left film and the transition film of the annular side surface, and respectively setting the 90-degree corner films at the connection between the back film and the top film, the right film, the bottom film, the left film and the transition film of the annular side surface, and the 90-degree corner films cover the welds produced by the stainless steel strips; Wherein, the 90-degree angle film is provided with an arched strip, and the vertical arched strips of the front film and the back film and the longitudinal arched strips of the top film and the bottom film of the annular side film are connected at the joints through the arched strips of the 90-degree angle film to obtain a plurality of complete annular arches on the Y axis; The connection points of the transverse circular arch strips of the front film and the back film and the right side film, the left side film and the four transitional surface films of the annular side film are connected by the circular arch strips of the 90-degree corner film to obtain several complete circular arches on the Z axis.

[0070] Specifically, the 90-degree corner film is made of a rectangular stainless steel plate with a thickness of 1.2-1.5 mm, the rectangular plate is bent 90 degrees in the length direction, and then a circular arch strip is pressed along the length direction.

[0071] Specifically, the elbow membrane is a 45-degree bend cut from a 1.2-1.5 mm thick stainless steel flat plate, and a circular arch strip is pressed along the axis of the bend.

[0072] Step C: Make a number of elbow membranes, and respectively set them at the common points of the three surfaces formed by the front film and the top film, right side film, bottom film, left side film and the adjacent transition surface film of the annular side film, and at the common points of the three surfaces formed by the back film and the top film, right side film, bottom film, left side film and the adjacent transition surface film of the annular side film, and connect the films at the top points of the low-temperature liquid medium storage container through the annular side film to form a fully enclosed three-dimensional membrane.

[0073] Among them, the elbow membrane is configured with arched strips, and the transverse arched strips or vertical arched strips of the front film and the back film at the common point of the three surfaces are respectively connected to the longitudinal arched strips or transverse arched strips of the top film and the bottom film and the transverse arched strips or vertical arched strips of the four transition surface films at the connection points through the arched strips of the elbow membrane, and the transverse arched strips or vertical arched strips of the front film and the back film at the common point of the three surfaces are respectively connected to the vertical arched strips or transverse arched strips of the right side film and the left side film and the transverse arched strips or vertical arched strips of the four transition surface films at the connection points through the arched strips of the elbow membrane, thereby obtaining a film integrally resistant to low temperature and impact and arranged on the inner wall of a fully enclosed metal container.

[0074] Furthermore, by welding the fully enclosed metal container in which the film is arranged as a whole to the heat-insulating frame outside the container, a low-temperature liquid medium storage container with a cold-insulating function can be obtained.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cryogenic liquid medium storage container, characterized in that: Including the front, back and circular sides, The longitudinal cross-sections of the front face, the back face and the annular side face are all regular octagons; Wherein, the annular side surface includes a top surface, a right side surface, a bottom surface, a left side surface and four transition surfaces, the top surface, the right side surface, the bottom surface, the left side surface and each transition surface are rectangular, and the top surface, the right side surface, the bottom surface and the left side surface are respectively connected by transition surfaces to form the annular side surface; The front surface and the back surface are parallel to each other and connected through the annular side surface to form a fully enclosed container.

2. The cryogenic liquid medium storage container according to claim 1, characterized in that: The included angles between the top surface, right side surface, bottom surface and left side surface of the annular side surface and the adjacent transition surface are all 135 degrees; The angles between the front surface and the back surface and the top surface, right side surface, bottom surface, left side surface and transition surface of the annular side surface are all 90 degrees; The front surface and the back surface respectively form a common point with the top surface, the right side surface, the bottom surface, the left side surface and the adjacent transition surface.

3. A metal film structure, used to adhere to and cover the inner wall of the cryogenic liquid medium storage container according to any one of claims 1 to 2, characterized in that: include: An annular side film, comprising a top film, a right side film, a bottom film, a left side film, and four transitional film, wherein the top film, the right side film, the bottom film, and the left side film are respectively arranged on the top surface, the right side surface, the bottom surface, and the left side surface of the annular side of the cryogenic liquid medium storage container, and the four transitional film are respectively arranged on four transitional surfaces, and the top film, the right side film, the bottom film, and the left side film are respectively connected to the four transitional film to form the annular side film; A front film and a back film are respectively arranged on the front and back of the low-temperature liquid medium storage container. The front film and the back film are connected through the annular side film to form a fully enclosed three-dimensional film.

4. The structure of the metal film according to claim 3, characterized in that: It also includes a plurality of 135-degree angle-turned membranes, and the top film, the right side film, the bottom film, the left side film and the four transitional surface films are respectively connected through the 135-degree angle-turned membranes.

5. The structure of the metal film according to claim 4, characterized in that: The top film and the bottom film are bulged outwards and are respectively provided with a plurality of transverse arched strips and a plurality of longitudinal arched strips, and the longitudinal arched strips of the top film and the bottom film are perpendicular to the transverse arched strips, and the plurality of transverse arched strips and the plurality of longitudinal arched strips are mutually staggered transversely and vertically; The right side film, the left side film and the four transition surface films are respectively provided with a plurality of transverse arched strips and a plurality of vertical arched strips protruding outwards, and the vertical arched strips of the right side film, the left side film and the four transition surface films are perpendicular to the transverse arched strips, and the plurality of transverse arched strips and the plurality of vertical arched strips are mutually staggered horizontally and vertically; When the top film, the right side film, the bottom film, the left side film and the four transition surface films are respectively connected through the 135-degree angle membrane, several transverse circular arch strips of the top film and the bottom film are respectively connected with the vertical circular arch strips of the right side film, the left side film and the transition surface film in sequence along the circumferential direction, and the 135-degree angle membrane is provided with circular arch strips, and the connection points of the transverse circular arch strips of the top film and the bottom film and the vertical circular arch strips of the right side film, the left side film and the four transition surface films are connected through the circular arch strips of the matching 135-degree angle membrane to obtain several complete annular arches on the X-axis, and the normal vector of the plane where each complete annular arch on the X-axis is located is the same as the normal vector of the front side of the low-temperature liquid medium storage container.

6. The structure of the metal film according to claim 5, characterized in that: It also includes several 90-degree corner membranes and several elbow membranes. The front film is respectively connected to the top film, the right film, the bottom film, the left film and the transition film of the annular side film through the 90-degree corner film, and the front film is respectively connected to the top film, the right film, the bottom film, the left film and the adjacent transition surface at the common point of the three surfaces through the elbow film; The back film is connected to the top film, the right side film, the bottom film, the left side film and the transition surface film of the annular side film through 90-degree corner films, and the back film is connected to the top film, the right side film, the bottom film, the left side film and their adjacent transition surfaces at the common points through the elbow film, thereby forming a fully enclosed three-dimensional film.

7. The structure of the metal film according to claim 6, characterized in that: The front film and the back film are respectively provided with a plurality of transverse arched strips and a plurality of vertical arched strips protruding outwards, and the transverse arched strips are perpendicular to the vertical arched strips, and the plurality of transverse arched strips and the plurality of vertical arched strips are crisscrossed with each other; When the front film and the back film are connected through the annular side film, the vertical arched strip of the front film, the longitudinal arched strip of the top film of the annular side film, the vertical arched strip of the back film and the longitudinal arched strip of the bottom film of the annular side film are sequentially connected along the annular direction, and the 90-degree angle film is provided with an arched strip, and the connection between the vertical arched strips of the front film and the back film and the longitudinal arched strips of the top film and the bottom film of the annular side film is connected through the arched strip of the 90-degree angle film, so as to obtain a plurality of complete annular arches on the Y axis, and the normal vector of the plane where each complete annular arch on the Y axis is located is the same as the normal vector of the right side surface of the low-temperature liquid medium storage container; At the same time, the transverse circular arch strips of the front film and the back film are respectively connected with the transverse circular arch strips of the right side film, the left side film and the four transition surface films of the annular side film in sequence along the circumferential direction, and the connecting parts of the transverse circular arch strips of the front film and the back film and the transverse circular arch strips of the right side film, the left side film and the four transition surface films of the annular side film are connected by the circular arch strips of the 90-degree angle film, so as to obtain a plurality of Z-axis complete circular arches, and the normal vector of the plane where each Z-axis complete circular arch is located is the same as the normal vector of the top surface of the low-temperature liquid medium storage container; Correspondingly, the elbow membrane is configured with arched strips, and the transverse arched strips or vertical arched strips of the front film and the back film at the common point of the three surfaces are respectively connected to the longitudinal arched strips or transverse arched strips of the top film and the bottom film and the transverse arched strips or vertical arched strips of the four transition surface films at the connection points through the arched strips of the elbow membrane, and the transverse arched strips or vertical arched strips of the front film and the back film at the common point of the three surfaces are respectively connected to the vertical arched strips or transverse arched strips of the right side film and the left side film and the transverse arched strips or vertical arched strips of the four transition surface films at the connection points through the arched strips of the elbow membrane.

8. The structure of the metal film according to claim 3, characterized in that: The front surface of the low-temperature liquid medium storage container and the junctions of the top surface, right side surface, bottom surface, left side surface and transition surface of the annular side surface are respectively pre-embedded with stainless steel strips, and the front film is respectively welded to the pre-embedded stainless steel strips at the junctions of the annular side film; Stainless steel strips are pre-embedded at the junctions of the back side of the low-temperature liquid medium storage container with the top side, right side, bottom side, left side and transition surface of the annular side surface, and the back film is welded to the pre-embedded stainless steel strips at the junctions with the annular side film.

9. A method for arranging a thin film on the inner wall of a cryogenic liquid medium storage container, for implementing on the inner wall of the cryogenic liquid medium storage container of claim 2, to prepare the structure of the metal film of claim 3, characterized in that: include: Step A: Arranging a film on the annular side of the cryogenic liquid medium storage container to form an annular side film, comprising the following steps: Step A1: respectively manufacturing a top film, a right film, a bottom film, a left film, four transitional films and a plurality of 135-degree corner films; Step A2: Arranging the top surface film, the right surface film, the bottom surface film, the left surface film and the four transition surface films on the top surface, the right surface, the bottom surface, the left surface and the four transition surface films of the low-temperature liquid medium storage container, and respectively arranging the 135-degree angle film at the edges of the 135-degree angle between the top surface, the right surface, the bottom surface and the left surface and the adjacent transition surface, and connecting the top surface film, the right surface film, the bottom surface film, the left surface film and the four transition surface films through the 135-degree angle film to form an annular side film; Step B: respectively making a front film, a back film and a plurality of 90-degree angle films, welding the edges of the front film and the back film to the low-temperature liquid medium storage container, and respectively setting the 90-degree angle films at both ends of the annular side film to form a fully enclosed three-dimensional film, including the following steps: Step B1: preparing a front film and a back film respectively, and arranging the front film and the back film on the front and the back respectively; Step B2: welding the front surface of the low-temperature liquid medium storage container and the connection between the top surface, right side surface, bottom surface, left side surface and transition surface of the annular side surface respectively, respectively, with the stainless steel strips pre-embedded in the connection between the front surface of the low-temperature liquid medium storage container and the top surface, right side surface, bottom surface, left side surface and transition surface of the annular side surface respectively, and welding the back surface film respectively; Step B3: making a plurality of 90-degree corner films, and respectively setting the 90-degree corner films at the connection between the front film and the top film, the right film, the bottom film, the left film and the transition film of the annular side surface, and respectively setting the 90-degree corner films at the connection between the back film and the top film, the right film, the bottom film, the left film and the transition film of the annular side surface, and the 90-degree corner films cover the welds produced by the stainless steel strips; Step C: Make a number of elbow membranes, and respectively set them at the common points of the three surfaces formed by the front film and the top film, right side film, bottom film, left side film and the adjacent transition surface film of the annular side film, and at the common points of the three surfaces formed by the back film and the top film, right side film, bottom film, left side film and the adjacent transition surface film of the annular side film, and connect the films at the top points of the low-temperature liquid medium storage container through the annular side film to form a fully enclosed three-dimensional membrane.

10. The method for arranging the inner wall film of the cryogenic liquid medium storage container according to claim 9, characterized in that: In the step A1, the top film and the bottom film are respectively provided with a plurality of transverse arched strips and a plurality of longitudinal arched strips in a crisscross pattern, the right film, the bottom film, the left film and the four transitional films are respectively provided with a plurality of transverse arched strips and a plurality of vertical arched strips in a crisscross pattern, and the 135-degree angled film is provided with an arched strip; In step A2, the top film, the right film, the bottom film and the left film are connected in sequence with the lateral circular arch strips of the adjacent transition film along the circumferential direction, and the connection points of the lateral circular arch strips of the top film and the bottom film and the vertical circular arch strips of the right film, the left film and the four transition film are connected by the circular arch strips of the adapted 135-degree angle film to obtain a plurality of complete annular circular arches on the X axis; In the step B3, the 90-degree angle film is provided with an arched strip, and the vertical arched strips of the front film and the back film and the longitudinal arched strips of the top film and the bottom film of the annular side film are connected at the connection points through the arched strips of the 90-degree angle film to obtain a plurality of complete annular arches along the Y axis; the transverse arched strips of the front film and the back film and the transverse arched strips of the right side film, the left side film and the four transitional surface films of the annular side film are connected at the connection points through the arched strips of the 90-degree angle film to obtain a plurality of complete annular arches along the Z axis; In step C, the elbow membrane is configured with arched strips, and the transverse arched strips or vertical arched strips of the front film and the back film at the common point of the three surfaces are respectively connected to the longitudinal arched strips or transverse arched strips of the top film and the bottom film and the transverse arched strips or vertical arched strips of the four transition surface films at the connection points through the arched strips of the elbow membrane, and the transverse arched strips or vertical arched strips of the front film and the back film at the common point of the three surfaces are respectively connected to the vertical arched strips or transverse arched strips of the right side film and the left side film and the transverse arched strips or vertical arched strips of the four transition surface films at the connection points through the arched strips of the elbow membrane.

Images