Double-layer water tank with heat preservation function

Abstract

The utility model discloses a double-layer water tank with a heat preservation function, belongs to the technical field of mechanical design, and is used for improving the overall structural strength of the water tank and enabling the water tank to have the heat preservation function. Comprising a box body, an insulating layer and a sealing plate, the box body comprises a box body main body and an end cover; the end cover is arranged at the opening end of the box body, and the end cover and the box body define a sealed container structure. Comprising corner fixing columns, an inner-layer box cover and corner connecting pieces, the end cover comprises four sets of corner fixing columns and the corner connecting pieces, the four sets of corner fixing columns define a square frame structure, and the ends of every two adjacent sets of corner stand columns are connected through the corner connecting pieces; the opening end of the box body main body is inserted into the groove body of the inner-layer box cover, and the inner-layer box cover is connected with the box body main body through welding; the end of the sealing plate is connected with the outer arc plates of the corner fixing columns of the end cover, the end of the sealing plate is connected with the outer arc plates of the four sets of corner fixing columns located on the same side face, and heat preservation layers are arranged between the sealing plate and the box body and between the sealing plate and the inner-layer box cover of the end cover.

Description

Technical Field

[0001] This utility model relates to the field of mechanical design technology, specifically to a double-layer water tank with heat preservation function. Background Technology

[0002] With the rapid rise of the machinery manufacturing industry and the vigorous development of the entire industry, the demand for machinery and equipment is increasing day by day, which in turn promotes the rapid development of water tanks for machinery and equipment. The stable water supply of the water tank is crucial for the smooth operation of the machinery and equipment.

[0003] In existing technologies, water tanks are mostly made of steel through welding. This results in high material density, heavy product weight, and a single-layer structure with low overall structural strength. During use, these tanks are prone to deformation and even leakage, causing them to lose their seal and severely shortening their lifespan. Furthermore, many existing water tanks lack insulation, making them unsuitable for low-temperature environments. This can seriously damage machinery, increase costs, or result in insulation material being installed before welding the steel plates, which can easily ignite the insulation material. Utility Model Content

[0004] In view of this, the present invention discloses a double-layer water tank with heat preservation function, the specific solution of which is as follows:

[0005] A double-layered water tank with heat preservation function includes a tank body, a heat preservation layer, and a sealing plate;

[0006] The box includes a box body and end caps. The box body is a hollow cylindrical structure with a square cross-section and openings at both ends.

[0007] The end caps are provided in two sets, respectively located at the two open ends of the main body of the box, including corner fixing posts, inner box cover, and corner connectors. The end caps and the box body together form a sealed container. Each set of end caps includes four sets of corner fixing posts and corner connectors. The four sets of corner fixing posts form a square frame structure. The ends of two adjacent sets of corner posts are connected by corner connectors. The corner fixing posts include an inner arc plate, an outer arc plate, and reinforcing ribs. The inner arc plate is located inside the outer arc plate, and reinforcing ribs connect the inner arc plate and the outer arc plate.

[0008] The inner box cover is a square groove structure with one end open. The connection position of the adjacent two side surfaces of the inner box cover is a rounded corner structure. The square frame formed by the four sets of corner fixing posts is located on the side of the inner box cover away from its opening end. The rounded corner structure at the connection position of the two adjacent side surfaces of the inner box cover is attached to the inner arc plate of the corner fixing post and welded together.

[0009] The open end of the main body of the box is inserted into the groove of the inner box cover, and the inner box cover and the main body of the box are connected by welding.

[0010] The sealing plate is a square plate structure, which is set on the outside of the box. There are six sets of sealing plates. The ends of the sealing plates are connected to the outer arc plates of the four sets of corner fixing posts on the same side. There are insulation layers between the sealing plates and the main body of the box, and between the sealing plates and the inner box cover of the end cover.

[0011] As a supplement to the technical solution of this utility model, the end of the outer arc plate of the corner fixing post is provided with a recessed platform in the length direction, and the end of the sealing plate is riveted to the recessed platform of the outer arc plate.

[0012] As a supplement to the technical solution of this utility model, the insulation layer includes a support frame and insulation material. The support frame has a grid structure, and the insulation material is filled in the grid of the support frame.

[0013] As a supplement to the technical solution of this utility model, the inner cover of the main body of the box and the end cover are welded to the support frame, and the sealing plate is connected to the support frame by rivets.

[0014] As a supplement to the technical solution of this utility model, a buffer plate is also included, which is disposed inside the main body of the box and has through holes on its surface.

[0015] As a supplement to the technical solution of this utility model, the buffer plate includes a first transverse buffer plate, a second transverse buffer plate, a first longitudinal buffer plate, and a second longitudinal buffer plate;

[0016] The first and second transverse buffer plates are arranged parallel to each other and located in the middle of the box body. The outer edges of the first and second transverse buffer plates are welded to the box body. The guide holes on the first and second transverse buffer plates are staggered so that the guide holes on the two buffer plates are not located in the same longitudinal direction.

[0017] As a supplement to the technical solution of this utility model, the first longitudinal buffer plate is disposed between the first transverse buffer plate and one of the end caps, and the first longitudinal buffer plate and the first transverse buffer plate are disposed perpendicularly to each other. The side of the first longitudinal buffer plate is welded to the first transverse buffer plate, the upper side wall of the box body, the lower side wall of the box body, and the inner box cap of the end cap respectively.

[0018] The second longitudinal buffer plate is disposed between the second transverse buffer plate and another set of end caps, and the second longitudinal buffer plate is disposed perpendicular to the second transverse buffer plate; the side of the second longitudinal buffer plate is welded to the second buffer plate, the upper side wall of the box body, the lower side wall of the box body, and the inner box cap of the end cap respectively.

[0019] As a supplement to the technical solution of this utility model, the connection position between the first longitudinal buffer plate and the first transverse buffer plate is located in the middle of the first transverse buffer plate, the connection position between the second longitudinal buffer plate and the second transverse buffer plate is located in the middle of the second transverse buffer plate, and a flow guiding hole is provided on both the first longitudinal buffer plate and the second longitudinal buffer plate.

[0020] The guide holes on the first transverse buffer plate are located on the left side of the first longitudinal buffer plate, and the guide holes on the second transverse buffer plate are located on the right side of the second longitudinal buffer plate.

[0021] As a supplement to the technical solution of this utility model, the inner cover of the two sets of end caps is provided with vertical slots. The sides of the first longitudinal buffer plate and the second longitudinal buffer plate that are connected to the inner cover are located in the vertical slots on the inner cover. The buffer plate located in the vertical slots is welded to the inner cover.

[0022] As a supplement to the technical solution of this utility model, the corner connector is an arc-shaped structure, and the side of the corner connector is provided with a corner connector protrusion plate. The corner connector protrusion plate is located outside the outer arc plate of the corner fixing post, and the corner connector protrusion plate is riveted to the outer arc plate.

[0023] Beneficial effects: The water tank disclosed in this utility model has a double-layer structure, which can improve overall strength, reduce deformation, and ensure sealing. In another aspect, the use of insulation material enables it to operate in low-temperature environments, ensuring the normal operation of mechanical equipment. Furthermore, the internal buffer plate of the water tank is designed with a fully connected and fixed method to prevent bending and deformation, thus preventing loss of buffering effect. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0025] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0026] Figure 3 This is a schematic diagram of the assembly structure of the main body of the box and the end cap of this utility model.

[0027] Figure 4 This is a schematic diagram of the end cap structure of this utility model.

[0028] Figure 5 This is a schematic diagram of the main structure of the box body of this utility model.

[0029] Figure 6 This is a schematic diagram of the cross-sectional structure of the corner fixing column of this utility model.

[0030] Figure 7 This is a schematic diagram of the corner fixing column structure of this utility model.

[0031] Figure 8 This is a schematic diagram of the assembly structure of the box body and the supporting frame of this utility model.

[0032] Figure 9 This is a schematic diagram of the support frame structure of this utility model.

[0033] Figure 10 This is a schematic diagram of the support frame structure of this utility model.

[0034] Figure 11 This is a schematic diagram of the support frame structure of this utility model.

[0035] Figure 12 This is a schematic diagram of the insulation layer structure of this utility model.

[0036] Figure 13 This is a schematic diagram of the corner connector structure of this utility model.

[0037] Figure 14 This is a schematic diagram of the layout structure of the buffer plate inside the box according to this utility model.

[0038] Figure 15 This is a schematic diagram of the layout structure of the buffer plate inside the box according to this utility model.

[0039] In the diagram: 1. Box body, 2. Sealing plate, 3. Box body main body, 4. End cap, 5. Corner fixing post, 6. Inner box cover, 7. Corner connector, 8. Inner arc plate, 9. Outer arc plate, 10. Reinforcing rib, 11. Recessed platform, 12. Support frame, 13. Thermal insulation material, 14. First transverse buffer plate, 15. Second transverse buffer plate, 16. First longitudinal buffer plate, 17. Second longitudinal buffer plate, 18. Guide hole, 19. Vertical slot, 20. Corner connector protrusion plate. Detailed Implementation

[0040] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] like Figures 1 to 15 As shown, a double-layer water tank with heat preservation function includes a tank body 1, a heat preservation layer, and a sealing plate 2.

[0043] The box body 1 includes a box body 3 and an end cap 4. The box body 3 is a hollow cylindrical structure with a square cross-section, which is formed by bending and welding sheet metal.

[0044] The end caps 4 are provided in two sets, respectively located at the two open ends of the main body 3, and include corner fixing posts 5, inner cover 6, and corner connectors 7. The end caps 4 and the main body 3 together form a hollow sealed container to realize the water storage function.

[0045] Each set of end caps 4 includes four sets of corner fixing posts 5 and corner connectors 7. The four sets of corner fixing posts 5 form a square frame structure, and the ends of two adjacent sets of corner posts are connected by corner connectors 7.

[0046] The corner fixing post 5 includes an inner arc plate 8, an outer arc plate 9, and a reinforcing rib 10. The inner arc plate 8 is disposed inside the outer arc plate 9, and the reinforcing rib 10 connects the inner arc plate 8 and the outer arc plate 9.

[0047] like Figure 4 As shown, the inner cover 6 is a square groove structure with one end open, and the connection position of the adjacent two side surfaces of the inner cover 6 is a rounded corner structure.

[0048] The square frame formed by the four sets of corner fixing posts 5 is located on the side of the inner box cover 6 away from its opening end, and the rounded corner structure at the connection position of the two adjacent side surfaces of the inner box cover 6 is fitted with the inner arc plate 8 of the corner fixing post 5 and is connected by welding.

[0049] The open end of the main body 3 is inserted into the groove of the inner cover 6, and the inner cover 6 is connected to the main body 3 by welding.

[0050] The sealing plate 2 is a square plate structure, which is set on the outside of the box body 1. The end of the sealing plate 2 is connected to the outer arc plate 9 of the corner fixing post 5 of the end cover 4. There are six sets of sealing plates 2, and the end of the sealing plate 2 is connected to the outer arc plate 9 of the four sets of corner fixing posts 5 located on the same side. There is a heat insulation layer between the sealing plate 2 and the box body 3, and between the sealing plate 2 and the inner box cover 6 of the end cover 4.

[0051] The above-mentioned design achieves a double-layer water tank structure, improving the overall structural strength of the water tank, reducing deformation, and extending its service life. By adding an insulation layer to the double-layer water tank, the water tank's insulation function is achieved, enabling it to operate in low-temperature environments and ensuring the normal operation of mechanical equipment.

[0052] As a preferred technical solution of this utility model, such as Figure 6 , Figure 7 As shown, the outer arc plate 9 of the corner fixing post 5 has a recessed platform 11 at its end along the length direction. The recessed platform 11 is a recessed structure facing the inner arc plate 8, so that the outer arc plate 9 forms a stepped shape at the recessed platform 11. The end of the sealing plate 2 is riveted to the recessed platform 11 of the outer arc plate 9, so that the outer surface of the sealing plate 2 is flush with the outer surface of the outer arc plate 9, which improves the aesthetics and enhances the connection strength between the sealing plate 2 and the outer arc plate 9.

[0053] As a preferred technical solution of this utility model, it also includes an inlet pipe and an outlet pipe. The inlet pipe passes through the sealing plate 2 on one set of end caps 4 and the inner box cover 6 and communicates with the inside of the box body 1. The outlet pipe passes through the sealing plate 2 on the other set of end caps 4 and the inner box cover 6 and communicates with the inside of the box body 1.

[0054] As a preferred embodiment of this invention, the insulation layer includes a support frame 12 and insulation material 13. The support frame 12 has a grid structure, and the insulation material 13 fills the grid of the support frame 12. The insulation frame is composed of square tubes arranged horizontally and vertically.

[0055] As a supplement to the above technical solutions, such as Figures 9 to 11 As shown, the support frame 12 has three types: a first support frame 12, a second support frame 12, and a third support frame 12. Each of the first, second, and third support frames 12 has two sets, with the same two sets of support frames 12 arranged opposite each other on both sides of the housing 1. The number of crossbeams and longitudinal beams constituting the support frame 12 is designed according to different load-bearing capacities and usage requirements. The first support frame 12 has circular holes for the water inlet / outlet pipes to pass through, improving the structural strength at the connection point between the water inlet / outlet pipes and the housing 1.

[0056] Accordingly, the insulation material 13 is adapted and changed according to the different structures of the supporting frame 12.

[0057] As a preferred embodiment of this utility model, the side surface of the main body 3 and the inner cover 6 of the end cover 4 are connected to the support frame 12.

[0058] As a supplement to the above technical solution, the side surfaces of the main body 3 and the inner cover 6 of the end cover 4 are welded to the support frame 12. The sealing plate 2 is connected to the support frame 12 by rivets.

[0059] As a supplement to the above technical solution, the end of the support frame 12 is welded to the corner fixing column.

[0060] Through the above settings, the main body 3, the inner cover 6, and the sealing plate 2 are all connected to the support frame 12, thereby enhancing the overall structural stability.

[0061] As a preferred technical solution of this utility model, such as Figure 14 , Figure 15 As shown, it also includes a buffer plate, which is disposed inside the main body 3 of the box. The surface of the buffer plate is provided with through holes for buffering the impact of water on the box 1.

[0062] Preferably, the buffer plate includes a first transverse buffer plate 14, a second transverse buffer plate 15, a first longitudinal buffer plate 16, and a second longitudinal buffer plate 17.

[0063] The first transverse buffer plate 14 and the second transverse buffer plate 15 are arranged parallel to each other and located in the middle of the body of the box 1, and their outer edges are welded to the body of the box 1. The sides of the two sets of transverse buffer plates are welded to the side walls of the body of the box 1, and the upper and lower sides are welded to the upper and lower side walls of the body of the box 1, respectively, so that the two sets of transverse buffer plates divide the body of the box 1 into three parts.

[0064] Preferably, both the first transverse buffer plate 14 and the second transverse buffer plate 15 are provided with guide holes 18. The guide holes 18 on the first transverse buffer plate 14 and the second transverse buffer plate 15 are staggered so that the guide holes 18 on the two buffer plates are not located in the same longitudinal direction, thereby further improving the buffering effect.

[0065] The first longitudinal buffer plate 16 is disposed between the first transverse buffer plate 14 and one of the end caps 4, and the first longitudinal buffer plate 16 is disposed perpendicularly to the first transverse buffer plate 14. The side of the first longitudinal buffer plate 16 is welded to the first transverse buffer plate 14, the upper side wall of the box body 1, the lower side wall of the box body 1, and the inner box cap 6 of the end cap 4.

[0066] The second longitudinal buffer plate 17 is disposed between the second transverse buffer plate 15 and another set of end caps 4, and the second longitudinal buffer plate 17 is disposed perpendicular to the second transverse buffer plate 15. The side of the second longitudinal buffer plate 17 is welded to the second buffer plate, the upper side wall of the box body 1, the lower side wall of the box body 1, and the inner box cap 6 of the end cap 4, respectively.

[0067] Preferably, the connection point between the first longitudinal buffer plate 16 and the first transverse buffer plate 14 is located at the middle of the first transverse buffer plate 14, and the connection point between the second longitudinal buffer plate 17 and the second transverse buffer plate 15 is located at the middle of the second transverse buffer plate 15.

[0068] Both the first longitudinal buffer plate 16 and the second longitudinal buffer plate 17 are provided with guide holes 18.

[0069] As a preferred embodiment of this invention, the guide hole 18 on the first transverse buffer plate 14 is located on the left side of the first longitudinal buffer plate 16, and the guide hole 18 on the second transverse buffer plate 15 is located on the right side of the second longitudinal buffer plate 17. Through this structural arrangement, the water flow distance within the tank 1 is extended, thereby improving the buffering effect.

[0070] Preferably, the size of the guide holes 18 on the first transverse buffer plate 14 and the second transverse buffer plate 15 is larger than the size of the guide holes 18 on the first longitudinal buffer plate 16 and the second longitudinal buffer plate 17. The pore density of the guide holes 18 on the first transverse buffer plate 14 and the second transverse buffer plate 15 is greater than the pore density of the guide holes 18 on the first longitudinal buffer plate 16 and the second longitudinal buffer plate 17.

[0071] As a preferred technical solution of this utility model, such as Figure 4 , Figure 14 As shown, the inner cover 6 of the end cap 4 is provided with vertical slots 19. The positions of the slots on the two sets of end caps 4 correspond to the first longitudinal buffer plate 16 and the second longitudinal buffer plate 17, respectively. For example, the slots on the inner cover 6 connected to the first longitudinal buffer plate 16 correspond to the first longitudinal buffer plate 16, and the slots on the inner cover 6 connected to the second longitudinal buffer plate 17 correspond to the second longitudinal buffer plate 17. The sides of the first longitudinal buffer plate 16 and the second longitudinal buffer plate 17 that connect to the inner cover 6 are all located in the slots on the inner cover 6. The first longitudinal buffer plate 16 and the second longitudinal buffer plate 17 are sealed to the inner cover 6 by welding.

[0072] In actual installation, each buffer plate must first be installed and welded to the main body of the housing 1, and then the end cover 4 is assembled to the main body of the housing 1. Conventional methods cannot fix the sides of the first longitudinal buffer plate 16 and the second longitudinal buffer plate 17 to the end cover 4, resulting in structural instability of the first longitudinal buffer plate 16 and the second longitudinal buffer plate 17 during service. By setting the vertical slot 19, a fixed and sealed connection between the first longitudinal buffer plate 16, the second longitudinal buffer plate 17 and the end cover 4 is achieved, which greatly improves the overall structural strength.

[0073] As a preferred technical solution of this utility model, the corner connector 7 has an arc-shaped structure, and the side of the corner connector 7 is provided with a corner connector protrusion plate 20. When the corner connector 7 is connected to the corner fixing post 5, the corner connector protrusion plate 20 is located outside the outer arc plate 9 of the corner fixing post 5, and the corner connector protrusion plate 20 is riveted to the outer arc plate 9, which facilitates the connection between the corner connector 7 and the corner fixing post 5 while improving the connection strength between the two.

[0074] As a preferred technical solution of this utility model, all components of the water tank are made of aluminum alloy. Compared with traditional steel water tanks, this reduces the weight of the water tank, reduces the pressure on the equipment frame structure at the water tank location, lowers fuel costs, and further improves corrosion resistance and extends the service life of the water tank through special surface treatment, thus reducing costs.

[0075] The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be included within the protection scope of the present invention.

Claims

1. A double-walled water tank with heat preservation function, characterized in that, The box (1) includes a box body (3), an end cover (4), the box body (3) is a hollow cylindrical structure with a square cross section, and two ends are provided with openings; The end cover (4) is provided with two groups and is respectively arranged at the two opening ends of the box body (3), and includes an angle fixing column (5), an inner layer box cover (6) and an angle connector (7), the end cover (4) and the box (1) form a sealed container, each group of end covers (4) includes four groups of angle fixing columns (5) and angle connectors (7), the four groups of angle fixing columns (5) form a square frame structure, and the end portions of the adjacent two groups of angle columns are connected through the angle connectors (7); the angle fixing column (5) includes an inner arc plate (8), an outer arc plate (9) and a reinforcing rib (10), the inner arc plate (8) is arranged on the inner side of the outer arc plate (9), and the reinforcing rib (10) is connected between the inner arc plate (8) and the outer arc plate (9); The inner layer box cover (6) is a square groove structure with one end opening, the adjacent two side surface connection positions of the inner layer box cover (6) are circular corner structures, the square frame formed by the four groups of angle fixing columns (5) is located on the side of the inner layer box cover (6) away from the opening end, and the circular corner structures of the two adjacent side surface connection positions of the inner layer box cover (6) are fitted with the inner arc plates (8) of the angle fixing columns (5) and are connected through welding; The opening end of the box body (3) is inserted into the groove of the inner layer box cover (6), and the inner layer box cover (6) and the box body (3) are connected through welding; The sealing plate (2) is a square plate structure, which is arranged on the outer side of the box (1), the sealing plate (2) is provided with six groups, the end portion of the sealing plate (2) is connected with the outer arc plate (9) of the four groups of angle fixing columns (5) located on the same side, and the sealing plate (2) and the box body (3) and the inner layer box cover (6) of the end cover (4) are provided with a thermal insulation layer. The end portion of the outer arc plate (9) of the angle fixing column (5) is provided with a recess (11), and the end portion of the sealing plate (2) is riveted with the recess (11) of the outer arc plate (9).

2. The double-layer water tank with heat preservation function according to claim 1, characterized in that, The thermal insulation layer includes a support frame (12) and a thermal insulation material (13), the support frame (12) is a grid structure, and the thermal insulation material (13) is filled in the grid of the support frame (12).

3. The double-layer water tank with heat preservation function according to claim 1, characterized in that, The side surface of the box body (3) and the inner layer box cover (6) of the end cover (4) are connected with the support frame (12) through welding, and the sealing plate (2) is connected with the support frame (12) through rivets.

4. The double-layer water tank with heat preservation function according to claim 3, characterized in that, It also includes a buffer plate, the buffer plate is arranged in the box body (3), and the surface of the buffer plate is provided with a through hole.

5. The double-layer water tank with a heat preservation function according to claim 1, characterized in that, The buffer plate includes a first transverse buffer plate (14), a second transverse buffer plate (15), a first longitudinal buffer plate (16) and a second longitudinal buffer plate (17).

6. The double-layer water tank with heat preservation function according to claim 5, characterized in that, ​ The first transverse buffer plate (14) and the second transverse buffer plate (15) are arranged in parallel and at the middle position of the box body (1), and the outer edges of the first transverse buffer plate (14) and the second transverse buffer plate (15) are welded to the box body (1), the flow guide through holes (18) arranged on the first transverse buffer plate (14) and the second transverse buffer plate (15) are staggered, so that the flow guide through holes (18) arranged on the two buffer plates are not located in the same longitudinal direction.

7. The double-layer water tank with heat preservation function according to claim 6, characterized in that, The first longitudinal buffer plate (16) is arranged between the first transverse buffer plate (14) and one of the groups of end covers (4), and the first longitudinal buffer plate (16) is arranged vertically relative to the first transverse buffer plate (14), the side edges of the first longitudinal buffer plate (16) are welded to the first transverse buffer plate (14), the upper side wall of the box body (1), the lower side wall of the box body (1), and the inner layer box cover (6) of the end cover (4); The second longitudinal buffer plate (17) is arranged between the second transverse buffer plate (15) and the other group of end covers (4), and the second longitudinal buffer plate (17) is arranged vertically relative to the second transverse buffer plate (15); the side edges of the second longitudinal buffer plate (17) are welded to the second transverse buffer plate, the upper side wall of the box body (1), the lower side wall of the box body (1), and the inner layer box cover (6) of the end cover (4).

8. The double-layer water tank with a heat preservation function according to claim 7, characterized in that, The connection position of the first longitudinal buffer plate (16) and the first transverse buffer plate (14) is located at the middle position of the first transverse buffer plate (14), the connection position of the second longitudinal buffer plate (17) and the second transverse buffer plate (15) is located at the middle position of the second transverse buffer plate (15), and flow guide through holes (18) are arranged on the first longitudinal buffer plate (16) and the second longitudinal buffer plate (17); The flow guide through holes (18) on the first transverse buffer plate (14) are located at the left part of the first longitudinal buffer plate (16), and the flow guide through holes (18) arranged on the second transverse buffer plate (15) are located at the right part of the second longitudinal buffer plate (17).

9. The double-layer water tank with a heat preservation function according to claim 8, characterized in that, The inner layer box cover (6) of the two groups of end covers (4) is provided with a vertical slot hole (19), and the side edges of the first longitudinal buffer plate (16) and the second longitudinal buffer plate (17) connected to the inner layer box cover (6) are located in the vertical slot hole (19) on the inner layer box cover (6), and the buffer plate located in the vertical slot hole (19) is welded to the inner layer box cover (6).

10. The double-layer water tank with a heat preservation function according to claim 8, characterized in that, The corner joint (7) is in an arc shape, the side edge of the corner joint (7) is provided with a corner joint protruding plate (20), the corner joint protruding plate (20) is located outside the outer arc plate (9) of the corner fixing column (5), and the corner joint protruding plate (20) is riveted to the outer arc plate (9).

Images