Air separation cold box
By designing a special-shaped steel structure frame, the problem of wasted space above the air separation cold box is solved, more efficient space utilization and cost reduction are achieved, and the stability of the steel structure is enhanced.
Patent Information
- Application Number
- CN202422494328.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-10-15
AI Technical Summary
The utilization rate of the upper space of existing air separation cold boxes is uneven, resulting in high cold box costs.
A special-shaped steel structure frame is adopted, including a first steel structure module and a second steel structure module. The module sizes and inclination angles are designed differently to adapt to distillation towers of different heights and widths and reduce upper idle space.
The manufacturing cost of the cold box is reduced, the wind load is reduced, and the stability and space utilization of the steel structure frame are improved.
Smart Images
Figure CN223332022U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of air separation equipment, and in particular to an air separation cold box. Background Art
[0002] As a crucial component of an air separation plant (ASU), the air separation cold box primarily consists of a distillation tower and a cold box steel structure surrounding the tower. The cold box steel structure primarily comprises a steel frame connected by columns, beams, and braces, and several panels surrounding the steel frame to enclose the cold box. Once the distillation tower and cold box steel structure are assembled, the space between them can be filled with, for example, pearlescent sand to maintain coolness.
[0003] The existing cold boxes are rectangular in shape, with a large idle space on the top, resulting in uneven overall utilization. Especially for large air separation cold boxes, which are often tens of meters high, the idle space on the top of the cold box causes a lot of unnecessary costs. Utility Model Content
[0004] The present application provides an air separation cold box to solve the problem of high cold box cost due to large idle and wasted space on the upper part of the cold box.
[0005] To solve the above technical problems, the technical solutions provided by this application are:
[0006] An air separation cold box includes a steel structure frame; the steel structure frame includes a first steel structure module and a second steel structure module arranged in the transverse direction, the first steel structure module and the second steel structure module have different sizes in the transverse direction, and the first steel structure module and the second steel structure module also have different sizes in the vertical direction perpendicular to the transverse direction; the first steel structure module and the second steel structure module each include a plurality of steel structure units, and the plurality of steel structure units in the first steel structure module and the second steel structure module are arranged in multiple rows and columns, with the row direction parallel to the transverse direction and the column direction parallel to the vertical direction; each steel structure unit includes columns, beams and diagonal braces, the columns extend in a direction parallel to the vertical direction, the beams extend in a direction parallel to the transverse direction, and the diagonal braces are inclined relative to the columns and the beams; and in the transverse direction, in the first steel structure module, any two adjacent steel structure units have at least a pair of diagonal braces with opposite inclination directions, and in the second steel structure module, any two adjacent steel structure units also have at least a pair of diagonal braces with opposite inclination directions.
[0007] According to one embodiment of the present application, in the transverse direction, of two adjacent steel structure units, one is located in the first steel structure module and the other is located in the second steel structure module, and the two adjacent steel structure units have at least one pair of diagonal braces with opposite inclination directions.
[0008] According to one embodiment of the present application, in the vertical direction, any two adjacent steel structure units have at least one pair of diagonal braces with opposite inclination directions.
[0009] According to one embodiment of the present application, the dimensions of each steel structure unit in the horizontal direction are the same, and the dimensions of each steel structure unit in the vertical direction are also the same.
[0010] According to one embodiment of the present application, in the horizontal direction, the inclination angles of the diagonal braces of two adjacent steel structure units relative to the horizontal direction are the same; in the vertical direction, the inclination angles of the diagonal braces of two adjacent steel structure units relative to the vertical direction are also the same.
[0011] According to one embodiment of the present application, each steel structure unit includes two columns, two beams and a diagonal brace. The two columns and the two beams form a rectangular frame structure, and the two ends of the diagonal brace are connected to the corner points of the rectangular frame structure.
[0012] According to one embodiment of the present application, in the first steel structure module, the number of steel structure units in each row is the same, and the number of steel structure units in each column is also the same, so that the first steel structure module is rectangular as a whole; in the second steel structure module, the number of steel structure units in each row is the same, and the number of steel structure units in each column is also the same, so that the second steel structure module is also rectangular as a whole.
[0013] According to one embodiment of the present application, both end points of each diagonal brace are located at the intersection of the column and the beam.
[0014] According to one embodiment of the present application, in the horizontal direction, the horizontal beams arranged along the horizontal direction are connected in sequence to form a whole horizontal beam; in the vertical direction, the vertical columns arranged along the vertical direction are connected in sequence to form a whole column; the whole column and the whole horizontal beam are fixedly connected at the intersection.
[0015] According to one embodiment of the present application, the lateral size ratio of the first steel structure module to the second steel structure module is 3:2, and the vertical size ratio of the first steel structure module to the second steel structure module is 2:1.
[0016] The beneficial effects of this application are:
[0017] Different from the prior art, the air separation cold box provided by the present application has the space inside the first steel structure module and the second steel structure module for installing different distillation towers respectively. The first steel structure module and the second steel structure module have different horizontal dimensions, and the first steel structure module and the second steel structure module also have different vertical dimensions perpendicular to the horizontal direction. Therefore, the height and width of the first steel structure module and the second steel structure module can be set to adapt to the height and width of each distillation tower therein. The taller and thicker distillation towers are surrounded by steel structure modules with larger height and width, and the lower and thinner distillation towers are surrounded by steel structure modules with smaller height and width. Therefore, the idle and wasted space in the upper part of the steel structure frame of the air separation cold box is reduced, thereby reducing the manufacturing cost, and the overall width of the upper part of the cold box is smaller, and the wind load it bears is also smaller. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:
[0019] Figure 1 This is a schematic structural diagram of an embodiment of a steel structure frame of an air separation cold box provided by the present application;
[0020] Figure 2 yes Figure 1 A structural schematic diagram of the diagonal braces of the first steel structure module and the second steel structure module in the steel structure frame;
[0021] Figure 3 yes Figure 1 One of the situations of the structure of a single steel structure unit in the steel structure frame of the air separation cold box;
[0022] Figure 4 yes Figure 1 Another situation of the structure of a single steel structure unit in the steel structure frame of the air separation cold box;
[0023] Figure 5 yes Figure 1 Two structural schematic diagrams of splicing any two adjacent steel structure units in the first steel structure module in the steel structure frame of the air separation cold box;
[0024] Figure 6 yes Figure 1 Two structural schematic diagrams of splicing any two adjacent steel structure units in the second steel structure module in the steel structure frame of the air separation cold box;
[0025] Figure 7 yes Figure 1Two structural schematic diagrams of a steel structure unit in a first steel structure module and a steel structure unit in a second steel structure module in a steel structure frame of an air separation cold box;
[0026] Figure 8 yes Figure 1 Two structural schematic diagrams of the four steel structure units arranged in a matrix in the first steel structure module in the steel structure frame of the air separation cold box;
[0027] Figure 9 yes Figure 1 Two structural schematic diagrams of the four steel structure units arranged in a matrix in the second steel structure module in the steel structure frame of the air separation cold box;
[0028] Figure 10 yes Figure 1 Schematic diagrams of two structures in which two steel structure units in the first steel structure module and two steel structure units in the second steel structure module are spliced in the steel structure frame of the air separation cold box.
[0029] Description of reference numerals:
[0030] The first steel structure module 10
[0031] Second steel structure module 20
[0032] Steel Structure Unit 100
[0033] Steel structure unit 100A
[0034] Steel Structure Unit 100B
[0035] Steel Structure Unit 100A1
[0036] Steel Structure Unit 100B1
[0037] Steel structure unit 100A2
[0038] Steel structure unit 100B2
[0039] Column 110
[0040] Column 110a
[0041] Column 110b
[0042] Beam 120
[0043] Beam 120a
[0044] Beam 120b
[0045] Diagonal brace 130
[0046] Horizontal X
[0047] Vertical Y DETAILED DESCRIPTION
[0048] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0049] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0050] An air separation cold box consists of a distillation column and a steel cold box structure surrounding the distillation column. The cold box structure primarily consists of a steel frame and several panels surrounding the frame to enclose the cold box. Conventional air separation cold boxes are rectangular in shape, but they have a significant amount of empty space, particularly in the upper portion. This results in wasted space and unnecessary costs.
[0051] In view of this, in order to reduce the waste of space in the air separation cold box and reduce costs, the present application provides an air separation cold box. By improving the structure of the air separation cold box, specifically the structure of the steel structure portion outside the distillation tower of the air separation cold box, the steel structure portion is configured as a "narrow at the top and wide at the bottom" special-shaped structure, thereby reducing the waste of space in the air separation cold box and reducing costs. The structure of the air separation cold box is described in detail below with reference to the accompanying drawings.
[0052] The present application provides an air separation cold box, including a steel structure frame. It can be understood that in order to achieve the closure of the air separation cold box, the air separation cold box also includes a number of panels covering the outside of the steel structure frame.
[0053] See also Figure 1 , Figure 1 This is a schematic diagram of the structure of an embodiment of the steel structure frame of the air separation cold box provided by this application. It should be noted that: Figure 1 This is the main view of the steel structure frame. Since the steel structure frame is a three-dimensional frame structure surrounded by multiple surfaces, Figure 1 A structure that is only one side of a steel frame.
[0054] The steel structure frame includes a first steel structure module 10 and a second steel structure module 20 arranged in a transverse direction. The first steel structure module 10 and the second steel structure module 20 have different transverse dimensions. The first steel structure module 10 and the second steel structure module 20 also have different vertical dimensions perpendicular to the transverse direction. For the convenience of description below, the transverse direction is set as X and the vertical direction is set as Y. The dimension in the transverse direction X can be called width, and the dimension in the vertical direction Y can be called height. For example, the height and width of the first steel structure module 10 can both be greater than the height and width of the second steel structure module 20, or the height and width of the first steel structure module 10 can both be smaller than the height and width of the second steel structure module 20. Figure 1 It shows a situation where both the height and width of the first steel structure module 10 are greater than the height and width of the second steel structure module 20 .
[0055] The space inside the first steel structure module 10 of the cold box is used to install a first distillation tower, and the space inside the second steel structure module 20 of the cold box is used to install a second distillation tower. The first distillation tower and the second distillation tower have different dimensions in the height direction, and the dimension of the first distillation tower in the height direction is larger than the dimension of the second distillation tower in the height direction. For example, the first distillation tower can be an oxygen-nitrogen distillation tower, and the second distillation tower can be an argon distillation tower. The height of the oxygen-nitrogen distillation tower is higher than that of the argon distillation tower. Generally speaking, the taller the distillation tower, the wider it is. Therefore, the present application sets the height and width of the first steel structure module 10 and the second steel structure module 20 to adapt to the height and width of each distillation tower therein. The taller and thicker distillation towers are surrounded by steel structure modules with larger height and width, and the lower and thinner distillation towers are surrounded by steel structure modules with smaller height and width. The steel structure frame as a whole forms a "narrow at the top and wide at the bottom" special-shaped structure, thereby reducing the idle and wasted space in the upper part of the steel structure frame of the air separation cold box, thereby reducing the manufacturing cost of the cold box. Moreover, since the width of the upper part of the steel structure is smaller, that is, the width of the upper part of the cold box is smaller, its windward surface area is smaller. Since the wind load is proportional to the windward surface area, the lateral X load borne by the upper part of the cold box is smaller, which can save the wind-resistant structure set up due to the large wind load to a certain extent.
[0056] See again Figure 1 The first steel structure module 10 and the second steel structure module 20 both include multiple steel structure units 100, and the multiple steel structure units 100 in the first steel structure module 10 and the second steel structure module 20 are arranged into multiple rows and columns, with the row direction parallel to the horizontal direction X and the column direction parallel to the vertical direction Y.
[0057] Each steel structure unit 100 includes columns 110, beams 120, and diagonal braces 130. The columns 110 extend parallel to the vertical direction Y, the beams 120 extend parallel to the horizontal direction X, and the diagonal braces 130 are arranged at an angle relative to the columns 110 and beams 120. The columns 110 and beams 120 together constitute the main structure of the steel structure frame. The diagonal braces 130 serve as auxiliary supports, reinforcing the structural stability of the steel structure frame. Furthermore, because the diagonal braces 130 are arranged at an angle relative to the columns 110 and beams 120, the columns 110, beams 120, and diagonal braces 130 form a stable triangular frame, providing greater stability in load bearing.
[0058] Combine Figure 2 , Figure 2 yes Figure 1 A schematic structural diagram of the diagonal braces 130 of the first steel structure module 10 and the second steel structure module 20 in the steel structure frame shows that in the transverse direction X, in the first steel structure module 10, any two adjacent steel structure units 100 have at least one pair of diagonal braces 130 with opposite inclination directions, and in the second steel structure module 20, any two adjacent steel structure units 100 also have at least one pair of diagonal braces 130 with opposite inclination directions. Since in the transverse direction X, no matter in the first steel structure module 10 or the second steel structure module 20, any two adjacent steel structure units 100 have at least one pair of diagonal braces 130 with opposite inclination directions, they can withstand positive and negative loads in the transverse direction X, and therefore the steel structure frame has stronger stability in the transverse direction X.
[0059] In one embodiment, in the transverse direction X, of two adjacent steel structure units 100, one is located in the first steel structure module 10 and the other is located in the second steel structure module 20, the two adjacent steel structure units 100 have at least one pair of diagonal braces 130 with opposite inclination directions. In this embodiment, in the transverse direction X, the overall structure formed by the first steel structure module 10 and the second steel structure module 20 is more stable.
[0060] In one embodiment, any two adjacent steel structure units 100 have at least one pair of diagonal braces 130 with opposite inclination directions in the vertical direction Y. In this embodiment, in the vertical direction Y, the overall structure formed by the first steel structure module 10 and the second steel structure module 20 has stronger stability.
[0061] In one embodiment, both endpoints of each diagonal brace 130 are located at the intersection of the column 110 and the beam 120. In this embodiment, the column 110, the beam 120, and the diagonal brace 130 can form a stable triangular frame, and the entire steel structure frame forms a plurality of triangular frames, thereby improving the support stability of the entire steel structure frame.
[0062] In one embodiment, the steel structure units 100 have the same size in the horizontal direction X and the same size in the vertical direction Y. In this embodiment, the steel structure frame is subjected to relatively balanced forces at all locations in the horizontal direction X and the vertical direction Y, and the steel structure frame is also simpler to manufacture.
[0063] Each steel structure unit 100 has the same size in the horizontal direction X and the same size in the vertical direction Y. For example, the size of each steel structure unit 100 in the horizontal direction X can be 3 meters, and the size of each steel structure unit 100 in the vertical direction Y can be 2 meters. Therefore, when the steel structure units 100 of the first steel structure module 10 are arranged in three rows in the horizontal direction X, the size of the first steel structure module 10 in the horizontal direction X is 9 meters. When the steel structure units 100 of the first steel structure module 10 are arranged in sixteen rows in the vertical direction Y, the size of the first steel structure module 10 in the horizontal direction X is 32 meters. When the steel structure units 100 of the second steel structure module 20 are arranged in two rows in the horizontal direction X, the size of the second steel structure module 20 in the horizontal direction X is 6 meters. When the steel structure units 100 of the second steel structure module 20 are arranged in eight rows in the vertical direction Y, the size of the second steel structure module 20 in the horizontal direction X is 16 meters.
[0064] Furthermore, in the horizontal direction X, the diagonal braces 130 of two adjacent steel structure units 100 have the same inclination angle relative to the horizontal direction X; in the vertical direction Y, the diagonal braces 130 of two adjacent steel structure units 100 also have the same inclination angle relative to the vertical direction Y. In this embodiment, regardless of the horizontal direction X or the vertical direction Y, because the diagonal braces 130 of two adjacent steel structure units 100 have opposite inclination directions relative to the horizontal direction X / vertical direction Y and the same inclination angle, the force applied to each part of the steel structure frame is more balanced.
[0065] In one embodiment, each steel structure unit 100 includes two columns 110, two beams 120 and a diagonal brace 130. The two columns 110 and the two beams 120 form a rectangular frame structure, and the two ends of the diagonal brace 130 are connected to the corners of the rectangular frame structure. In this embodiment, each steel structure unit 100 is a rectangular frame structure, which facilitates that each steel structure unit 100 can be closely arranged into multiple rows and columns along the horizontal X and vertical Y directions, and adjacent steel structure units 100 can share the columns 110 and the beams 120. The two ends of the diagonal brace 130 are connected to the corners of the rectangular frame structure. The ends of the diagonal brace 130 can be directly fixed to the corners of the rectangular frame structure, or a node connecting plate can be welded or fixed by fasteners such as bolts at the corners of the rectangular frame structure, and the ends of the diagonal brace 130 are then fixed to the node connecting plate by welding or fasteners such as bolts.
[0066] See again Figure 1From the perspective of the overall steel structure frame, there are two types of rectangular steel structure units 100, one of which is Figure 3 The steel structure unit 100A is shown, and the other is the steel structure unit 100B. Regardless of whether along the horizontal direction X or the vertical direction Y, the steel structure unit 100A and the steel structure unit 100B are arranged in a cross-spaced manner.
[0067] Figure 3 In the steel structure unit 100A shown, the steel structure unit 100A includes a column 110a, a column 110b, a beam 120a, a beam 120b and a diagonal brace 130. The column 110a and the column 110b are arranged opposite to and in parallel, and the beam 120a and the beam 120b are arranged opposite to and in parallel. The column 110a, the column 110b, the beam 120a and the beam 120b together constitute a rectangular frame. The two ends of the diagonal brace 130 are connected to the corner points of the rectangular frame, and the two ends of the diagonal brace 130 are respectively connected to the upper right corner point and the lower left corner point of the rectangular frame, that is, one end of the diagonal brace 130 is connected to the connection point of the beam 120a and the column 110b, and the other end of the diagonal brace 130 is connected to the connection point of the beam 120b and the column 110a.
[0068] Figure 4 In the steel structure unit 100B shown, the steel structure unit 100B includes a column 110a, a column 110b, a beam 120a, a beam 120b and a diagonal brace 130. The column 110a and the column 110b are arranged opposite to and in parallel, and the beam 120a and the beam 120b are arranged opposite to and in parallel. The column 110a, the column 110b, the beam 120a and the beam 120b together constitute a rectangular frame. The two ends of the diagonal brace 130 are connected to the corner points of the rectangular frame, and the two ends of the diagonal brace 130 are respectively connected to the upper left corner point and the lower right corner point of the rectangular frame, that is, one end of the diagonal brace 130 is connected to the connection point of the beam 120a and the column 110a, and the other end of the diagonal brace 130 is connected to the connection point of the beam 120b and the column 110b.
[0069] Figure 5 Two situations of splicing any two adjacent steel structure units 100 in the first steel structure module 10 are shown. In order to conveniently represent the two adjacent steel structure units 100 in the first steel structure module 10, the two adjacent steel structure units 100 in the first steel structure module 10 are respectively recorded as steel structure unit 100A1 and steel structure unit 100B1. Figure 5 The upper middle part shows the first case where the steel structure unit 100A1 and the steel structure unit 100B1 are connected, where the steel structure unit 100A1 is connected to the right side of the steel structure unit 100B1; Figure 5The lower middle part shows the second situation in which the steel structure unit 100A1 and the steel structure unit 100B1 are connected, where the steel structure unit 100A1 is connected to the left side of the steel structure unit 100B1.
[0070] Figure 6 Two situations of splicing any two adjacent steel structure units 100 in the second steel structure module 20 are shown. In order to conveniently represent the two adjacent steel structure units 100 in the second steel structure module 20, any two adjacent steel structure units 100 in the second steel structure module 20 are respectively recorded as 100A2 and steel structure unit 100B2. Figure 5 The upper middle portion shows the first case where the steel structure unit 100A2 and the steel structure unit 100B2 are connected, where the steel structure unit 100A2 is connected to the right side of the steel structure unit 100B2; Figure 5 The lower middle part shows the second situation in which the steel structure unit 100A2 and the steel structure unit 100B2 are connected, where the steel structure unit 100A2 is connected to the left side of the steel structure unit 100B2.
[0071] Figure 7 Two situations of splicing a steel structure unit 100 in the first steel structure module 10 and a steel structure unit 100 in the second steel structure module 20 are shown. In order to conveniently represent a steel structure unit 100 in the first steel structure module 10 and a steel structure unit 100 in the second steel structure module 20, the steel structure unit 100A and the steel structure unit 100B in the first steel structure module 10 are respectively recorded as steel structure unit 100A1 and steel structure unit 100B1, and the steel structure unit 100A and the steel structure unit 100B in the second steel structure module 20 are respectively recorded as steel structure unit 100A2 and steel structure unit 100B2. Figure 7 The upper middle part shows the connection between the steel structure unit 100B1 in the first steel structure module 10 and the steel structure unit 100A2 in the second steel structure module 20. Figure 7 The lower middle part shows the connection between the steel structure unit 100A1 in the first steel structure module 10 and the steel structure unit 100B2 in the second steel structure module 20 .
[0072] Figure 8 Two situations of splicing the four steel structure units 100 arranged in a matrix in the first steel structure module 10 are shown. In order to conveniently represent the four steel structure units 100 arranged in a matrix in the first steel structure module 10, they are recorded as: the upper left corner of the matrix arrangement is the steel structure unit 100B1, the upper right corner is the steel structure unit 100A1, the lower left corner is the steel structure unit 100A1, and the lower right corner is the steel structure unit 100B1. Figure 8 The upper middle part shows the first case of a matrix arrangement of the four steel structure units 100 in the first steel structure module 10, with four diagonal braces 130 arranged crosswise; Figure 8 The lower middle part shows the second case of a matrix arrangement of the four steel structure units 100 in the first steel structure module 10 , where the four diagonal braces 130 form a diamond arrangement.
[0073] Figure 9 Two situations of splicing the four steel structure units 100 arranged in a matrix in the second steel structure module 20 are shown. In order to conveniently represent the four steel structure units 100 arranged in a matrix in the second steel structure module 20, they are recorded as: the upper left corner of the matrix arrangement is the steel structure unit 100B2, the upper right corner is the steel structure unit 100A2, the lower left corner is the steel structure unit 100A2, and the lower right corner is the steel structure unit 100B2. Figure 9 The upper middle part shows the first case of a matrix arrangement of the four steel structure units 100 in the second steel structure module 20, with four diagonal braces 130 arranged crosswise; Figure 9 The lower middle part shows the second case of a matrix arrangement of the four steel structure units 100 in the second steel structure module 20 , where the four diagonal braces 130 form a diamond arrangement.
[0074] Figure 10 Two situations are shown in which the two steel structure units 100 in the first steel structure module 10 and the two steel structure units 100 in the second steel structure module 20 are arranged in a matrix. In order to conveniently represent the two steel structure units 100 in the first steel structure module 10 and the two steel structure units 100 in the second steel structure module 20, they are recorded as: the upper left corner of the matrix arrangement is the steel structure unit 100B1, the upper right corner is the steel structure unit 100A2, the lower left corner is the steel structure unit 100A1, and the lower right corner is the steel structure unit 100B2. Figure 10 The upper middle part shows the first case where the two steel structure units 100 in the first steel structure module 10 and the two steel structure units 100 in the second steel structure module 20 are arranged in a matrix, and the four diagonal braces 130 are cross-distributed; Figure 10 The lower middle part shows the second situation where the two steel structure units 100 in the first steel structure module 10 and the two steel structure units 100 in the second steel structure module 20 are arranged in a matrix, and the four diagonal braces 130 are distributed in a diamond shape.
[0075] See again Figure 1In one embodiment, in the first steel structure module 10, the number of steel structure units 100 in each row is the same, and the number of steel structure units 100 in each column is also the same, so that the first steel structure module 10 is rectangular as a whole; in the second steel structure module 20, the number of steel structure units 100 in each row is the same, and the number of steel structure units 100 in each column is also the same, so that the second steel structure module 20 is also rectangular as a whole. It is understood that in other embodiments, in the first steel structure module 10, the number of steel structure units 100 in each row may be different, and the number of steel structure units 100 in each column may be different; in the second steel structure module 20, in the first steel structure module 10, the number of steel structure units 100 in each row may be different, and the number of steel structure units 100 in each column may be different.
[0076] See again Figure 1 In one embodiment, in the horizontal direction X, the crossbeams 120 arranged along the horizontal direction X are sequentially connected to form a whole crossbeam; in the vertical direction Y, the columns 110 arranged along the vertical direction Y are sequentially connected to form a whole column; the whole column and the whole crossbeam are fixedly connected at the intersection. In this embodiment, the overall structure of the steel structure frame is formed by the cross-connection of several whole crossbeams and several whole columns. Compared to the crossbeams 120 and columns 110 of each steel structure unit 100 being independent components, the structural stability is improved. It is understood that to facilitate the connection of the diagonal braces 130, the diagonal braces 130 of each steel structure unit 100 can be independent components.
[0077] In one embodiment, the dimensional ratio of the first steel structure module 10 to the second steel structure module 20 in the horizontal direction X is 3:2, and the dimensional ratio of the first steel structure module 10 to the second steel structure module 20 in the vertical direction Y is 2:1. This is merely an example, and in other embodiments, the dimensional ratios of the first steel structure module 10 to the second steel structure module 20 in the horizontal direction X and the vertical direction Y may also be other values.
[0078] It should be noted that the steel structure frame of the air separation cold box has multiple sides, so that the steel structure frame can form a three-dimensional frame structure. For example, the steel structure frame has four sides, which can be specifically set as the first side, the second side, the third side and the fourth side that are vertically connected end to end. The first side is opposite to and parallel to the second side, and the third side is opposite to and parallel to the fourth side. The above embodiment only describes the structure of one side of the steel structure frame, for example Figure 1 The structure shown is the first side. Among the other three sides of the steel structure frame, the third side has the same structure as the first side, the second side has the same structure as the first steel structure module 10 in the first side, and the fourth side has the same structure as the second steel structure module 20 in the first side.
[0079] The terms "first", "second" and "third" in this application are used for descriptive purposes only and should not be understood as indicating the number of technical features indicated. Thus, the features defined as "first", "second" and "third" may explicitly or implicitly include at least one of such features. All directional indications in the embodiments of this application (such as up, down, left, right, front, back...) are only used to explain the relative positional relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.
[0080] The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. An air separation cold box, characterized in that: including a steel structural frame; The steel structure frame includes a first steel structure module and a second steel structure module arranged in a transverse direction, wherein the first steel structure module and the second steel structure module have different sizes in the transverse direction, and the first steel structure module and the second steel structure module also have different sizes in a vertical direction perpendicular to the transverse direction; The first steel structure module and the second steel structure module each include a plurality of steel structure units, and the plurality of steel structure units in the first steel structure module and the second steel structure module are arranged in a plurality of rows and columns, with the row direction being parallel to the transverse direction and the column direction being parallel to the vertical direction; Each of the steel structure units includes a column, a beam, and a diagonal brace, wherein the column extends in a direction parallel to the vertical direction, the beam extends in a direction parallel to the transverse direction, and the diagonal brace is arranged obliquely relative to the column and the beam; In the transverse direction, in the first steel structure module, any two adjacent steel structure units have at least one pair of diagonal braces with opposite inclination directions, and in the second steel structure module, any two adjacent steel structure units also have at least one pair of diagonal braces with opposite inclination directions.
2. The air separation cold box according to claim 1, characterized in that: In the transverse direction, one of the two adjacent steel structure units is located in the first steel structure module, and the other is located in the second steel structure module. The two adjacent steel structure units have at least one pair of diagonal braces with opposite inclination directions.
3. The air separation cold box according to claim 1, characterized in that: In the vertical direction, any two adjacent steel structure units have at least one pair of diagonal braces with opposite inclination directions.
4. The air separation cold box according to claim 2, characterized in that: The dimensions of the steel structure units in the transverse direction are the same, and the dimensions of the steel structure units in the vertical direction are also the same.
5. The air separation cold box according to claim 4, characterized in that: In the transverse direction, the diagonal braces of two adjacent steel structure units have the same inclination angle relative to the transverse direction; In the vertical direction, the inclination angles of the diagonal braces of two adjacent steel structure units relative to the vertical direction are also the same.
6. The air separation cold box according to claim 4, characterized in that: Each of the steel structure units includes two columns, two beams and one diagonal brace. The two columns and the two beams form a rectangular frame structure. Both ends of the diagonal brace are connected to the corner points of the rectangular frame structure.
7. The air separation cold box according to claim 6, characterized in that: In the first steel structure module, the number of the steel structure units in each row is the same, and the number of the steel structure units in each column is also the same, so that the first steel structure module is rectangular as a whole; In the second steel structure module, the number of the steel structure units in each row is the same, and the number of the steel structure units in each column is also the same, so that the second steel structure module as a whole is also rectangular.
8. The air separation cold box according to claim 1 or 2, characterized in that: Both end points of each diagonal brace are located at the intersection of the column and the beam.
9. The air separation cold box according to claim 1, characterized in that: In the transverse direction, the transverse beams arranged along the transverse direction are sequentially connected to form a whole transverse beam; In the vertical direction, the vertically arranged columns are sequentially connected to form a whole column; The entire column and the entire beam are fixedly connected at the intersection.
10. The air separation cold box according to claim 1, characterized in that: The size ratio of the first steel structure module to the second steel structure module in the horizontal direction is 3:2, and the size ratio of the first steel structure module to the second steel structure module in the vertical direction is 2:1.