CN215476411U - Liquid storage tank and composite panel structure - Google Patents

Abstract

A tank for storing a fluid, comprising: a body formed from a set of walls, wherein each wall is defined by a plurality of composite panels connected to each other by fasteners; a top cover defined by a plurality of aluminum panels connected to each other by fasteners and fixed to a top of the body by fasteners; and a base defined by a plurality of composite panels connected to each other and secured to the bottom of the body by fasteners. Each of the plurality of composite panels includes an inner steel plate that is a stainless steel plate and an outer steel plate that is a hot-dip galvanized mild steel plate. And connecting the inner steel plate and the outer steel plate through seam welding or a bonding process.

Description

Liquid storage tank and composite panel structure

Technical Field

The present invention generally relates to a tank. More particularly, the present invention relates to a tank made of composite panels for storing liquids such as water.

Background

Conventional pressed steel water tanks consist of stainless steel panels, mild steel panels, or Glass Reinforced Polyester (GRP) panels. Bolts and nuts are required to connect all of the bottom panels to assemble the panels together to fully assemble the tank. The dimensions of such tanks vary according to need and type of use. A tank made of only stainless steel panels is a preferred option, since stainless steel is distinguished by its high corrosion resistance, which facilitates the storage of liquids such as water. However, the use of an all stainless steel water tank has a disadvantage of requiring high manufacturing costs. The high price of such tanks is a major impediment and the demand for them is relatively limited.

Existing water tanks on the market are assembled using composite panels made from a combination of different steel plates, but the overall corrosion resistance, maintenance level and cost of the composite panels may not be ideal compared to using all stainless steel water tanks.

Chinese utility model patent CN 202807250U discloses a stainless steel water tank. The stainless steel water tank comprises a rectangular tank body, and a plurality of reinforcing plates are respectively arranged at the top and the bottom in the tank body. Buffer isolation plates are fixed between the two reinforcing plates of the box body and between the reinforcing plates and the side plates. A water outlet is arranged on one side of the bottom of the box body.

Japanese patent publication JP 2011068967 a discloses a water storage tank constructed by welding, which uses a stainless steel material having high corrosion resistance. The components of the water storage tank use ferritic stainless steel as the material of a water storage tank panel, and the ferritic stainless steel comprises the following components in percentage by mass: less than 0.02% of C, 0.1% to 1% of Si, less than 0.4% of Mn, less than 0.04% of P, less than 0.005% of S, 0.3% to 2% of Ni, less than 0.8% of Cu, 23% to 26% of Cr, more than 0.2% but less than 0.8% of Mo, 0.1% to 0.5% of Nb, 0.15% to 0.4% of Ti, less than 0.025% of N, 0.04% to 0.3% of Al, less than 0.002% of Ca, and the balance of Fe and other unavoidable impurities.

Korean patent No. 101458144B 1 discloses a stainless steel composite water tank including a base pad made of concrete, a bottom frame positioned at an edge of the base pad in a width direction and a length direction, a stainless bottom panel stacked on the bottom frame to form a bottom of the water tank and connected to the bottom frame, a support frame engaged with the bottom frame to fix a position of the stainless bottom panel, and a Polyethylene Double Frame (PDF) panel provided on the water tank and provided at both ends thereof with recesses and unevenness, which are sequentially inserted, to form an upper structure of the water tank, respectively.

The water tanks disclosed in chinese utility model patent CN 20280725U, japanese patent publication JP 2011068967 a and korean patent 101458144B 1 relate to an assembly of all stainless steel water tanks in which only stainless steel panels are used to form and assemble the water tanks.

While stainless steel panels are preferred due to their high corrosion resistance, it is necessary to explore the cheaper and more economical option of constructing tanks or tanks that are not necessarily made of stainless steel, but other panels made of alternate materials that exhibit high corrosion resistance similar to stainless steel panels.

SUMMERY OF THE UTILITY MODEL

In one aspect, the present invention provides a tank for storing a fluid, comprising:

a body formed from a set of walls, wherein each wall is defined by a plurality of composite panels connected to each other by fasteners;

a top cover defined by a plurality of aluminum panels connected to each other by fasteners and secured to a top of the body by fasteners; and

a base defined by a plurality of composite panels connected to each other by fasteners and secured to a bottom of the body;

each of the plurality of composite panels comprises:

an inner steel plate which is a stainless steel plate; and

an outer steel plate which is a hot-dip galvanized mild steel plate;

wherein the inner steel plate is joined to the outer steel plate by a seam welding or bonding process.

The present invention aims to provide a tank for storing fluids such as water, which tank uses composite panels aimed at providing the tank with minimal maintenance and optimal corrosion resistance. Conventional molten steel tanks are constructed using common steel panels to form the body and base of the tank. These panels of conventional molten steel tanks require bolts and nuts to be fastened to each other, thereby forming the body and base of the tank. The installation of this conventional water tank requires the use of a pedestal (plinth). In some cases, conventional water tanks are also supported by external supports to provide additional support for the body of the water tank.

In the present invention, the body and base of the tank are formed by a set of walls, wherein each wall is formed by a plurality of composite panels connected to each other by fasteners. The top cover or roof of the tank is formed by assembling and attaching aluminum panels with fasteners.

The composite panel comprises an inner steel plate and an outer steel plate joined together by seam welding. The inner steel plate is a stainless steel plate (e.g., grade SS 304 or 316), and the outer steel plate is a hot-dip galvanized mild steel plate. The mild steel plate is sufficiently immersed in a hot-dip galvanizing (zinc) solution and plated, and then joined to the stainless steel plate by seam welding. The inner stainless steel plate and the outer hot-dip galvanized mild steel plate are connected to form a composite panel. Alternatively, the galvanized mild steel sheet is joined to the stainless steel sheet by an adhesive process. The inner stainless steel plate provides a high resistance to corrosive elements that are likely to be present in the water or other liquid in the tank. The outer hot dip galvanized mild steel sheet may provide optimal corrosion resistance to the surrounding environment and elements such as high temperature and rainwater.

The top cover is connected to the top edge of the main body of the tank by fasteners. The base of the reservoir is connected to the bottom edge of the main body of the reservoir by fasteners.

In one embodiment, the reservoir employs a plurality of external stiffening members. A plurality of external reinforcing members are mounted on an outer surface of the main body of the tank by fasteners to further reinforce.

In another embodiment, the tank employs a plurality of internal stiffening members. The use of multiple inner stiffening members is an alternative to the use of multiple outer stiffening members. A plurality of internal reinforcing members are installed inside the tank to further reinforce.

In another embodiment, the composite panel has a peripheral flange. The stainless steel plate and the hot dip galvanized mild steel plate are joined together by seam welding along a peripheral flange, wherein the flange comprises a peripheral edge of the plate package and at least a part of said peripheral edge extends at substantially 90 ° to a main surface of the plate package.

In another embodiment, the composite panels are prefabricated to form a tank having a square or rectangular configuration.

Drawings

The present invention will be more clearly understood from the following description of embodiments of the present invention taken in conjunction with the accompanying drawings. The examples and drawings, however, are given for the purpose of illustration and explanation only and are not to be construed as limiting the scope of the utility model, which is defined by the appended claims.

In the drawings, like reference numerals are used to indicate like parts throughout the several views.

FIG. 1 is a perspective view of a fully assembled tank having a square configuration and an external reinforcing system.

FIG. 2 is a perspective view of a fully assembled tank having a rectangular configuration and an external reinforcing system.

FIG. 3 is a perspective view of a fully assembled tank having a square configuration and an internal stiffening system.

FIG. 4 is a perspective view of a fully assembled tank having a rectangular configuration and an internal stiffening system.

Detailed Description

Fig. 1 shows a fully assembled tank 10 comprising a body 1, a top cover 2, a base 3 and four external strengthening members 4.

In this embodiment, the tank 10 has a square configuration with a length of 2.0 meters, a width of 2.0 meters and a height of 2.0 meters. In other embodiments, the tank is of rectangular configuration and has dimensions in the range of 1 to 50 meters in length, 1 to 50 meters in width and 1 to 5 meters in height. The main body 1 of the tank 10 is formed by four vertical walls 1a, 1b, 1c and 1 d. Each of the walls 1a, 1b, 1c, 1d is made up of four composite panels connected to each other by fasteners such as hot-dip galvanized bolts and nuts.

In this example, the panel is a square composite panel having a length of 1.0 meter, a width of 1.0 meter, and a thickness of 5.8 millimeters. Each composite panel comprises an inner stainless steel plate (grade SS 304 or 316) and an outer hot dip galvanized mild steel plate (british standard: BS 1564: 1975). Mild steel plates (BS 1564: 1975) having a thickness of 3.0 mm to 6.0 mm were dip-coated in a hot-dip galvanized zinc solution at a temperature of 460 c for 5 minutes. The plated mild steel sheet is joined to the stainless steel sheet by seam welding with a seam welder to seam weld the four sides of the stainless steel sheet and the coated mild steel sheet, thereby forming a composite panel. The inner steel plate is joined to the plated mild steel plate by forming a seam weld between the overlapping portions of the inner steel plate and the outer steel plate.

Alternatively, the hot dip galvanized mild steel sheet is joined with the stainless steel sheet by a bonding process, thereby forming a composite panel. The stainless steel plate is joined to the hot dip galvanized mild steel plate by glue or adhesive, thereby forming a composite panel having an inner stainless steel plate and an outer hot dip galvanized mild steel plate.

In another embodiment, the composite panel is further coated with a phosphatizing Primer ("Etching Primer" paint) and Silver paint ("Silver" paint) or other equivalent coating.

The top cover 2 is composed of four aluminum panels, which are square panels with a length of 1.0 meter, a width of 1.0 meter and a thickness of 2.0 millimeters. The top cover 2 is connected and fastened to the top edges of the four walls 1a, 1b, 1c, 1d by fasteners such as hot-dip galvanized bolts and nuts.

The base 3 of the tank 10 is formed from four similar composite panels, which are square panels of length 1.0 metres, width 1.0 metres and thickness 5.8 millimetres. Each composite panel had a thickness consisting of 5.0 mm of outer hot dip galvanized mild steel plate and 0.8 mm of inner stainless steel plate. In other embodiments, the thickness of each composite panel varies within a thickness range, wherein the outer hot dip galvanized mild steel plate varies within a thickness range of 5.0 to 5.8 millimeters and the inner stainless steel plate varies within a thickness range of 0.3 to 1.0 millimeters. The base 3 is connected to the bottom edges of the four walls 1a, 1b, 1c, 1d by fasteners such as hot dip galvanized bolts and nuts.

Each wall 1a, 1b, 1c, 1d of the main body 1 is mounted with an external reinforcing member 4a, 4b, 4c, 4d, respectively, by a fastener such as a bolt and a nut. Each of the external reinforcing members 4a, 4b, 4c, 4d is in the shape of a strip-shaped plate member having a length of 2.3 m made of a galvanized reinforcing i-beam having a size ranging from 0.102 m deep × 0.152 m flange × 13.4kg/m in weight (4"× 6" × 13.4kg/m) to 0.133 m deep × 0.51 m flange × 30kg/m (5.25"× 20" × 30 kg/m).

FIG. 2 is a perspective view of a fully assembled tank having a rectangular configuration. In this embodiment, the tank 20 has a length of 3.0 meters, a width of 2.0 meters and a height of 2.15 meters. The main body 21 of the tank 20 is defined by four walls 21a, 21b, 21c, 21 d. The two opposite side walls 21a, 21c are constructed of six composite panels connected to each other by fasteners such as hot-dip galvanized bolts and nuts. The other two opposing side walls 21b, 21d are constructed of four composite panels that are connected to each other by fasteners such as hot-dip galvanized bolts and nuts. In this example, the composite panel is a square composite panel having a length of 1 meter, a width of 1 meter, and a thickness of 5.8 millimeters.

The top cover 22 is comprised of six aluminum panels, which are square panels with a length of 1.0 meter, a width of 1.0 meter, and a thickness of 2.0 millimeters. The top cover 22 is connected and fastened to the top surfaces of the four walls 21a, 21b, 21c, 21d by fasteners such as hot-dip galvanized bolts and nuts.

The base 23 of the tank 10 is formed from six similar composite panels, which are square panels of length 1.0 metres, width 1.0 metres and thickness 5.8 millimetres. Each composite panel had a thickness consisting of 5 mm outer hot dip galvanized mild steel plate and 0.8 mm inner stainless steel plate. In other embodiments, the thickness of each composite panel varies within a thickness range, wherein the outer hot dip galvanized mild steel plate varies within a thickness range of 5.0 to 5.8 millimeters and the inner stainless steel plate varies within a thickness range of 0.3 to 1.0 millimeters. The base 3 is connected to the bottom edges of the four walls 1a, 1b, 1c, 1d by fasteners such as hot dip galvanized bolts and nuts.

Each wall 21a, 21b, 21c, 21d of the main body 20 is mounted with an external reinforcement member 24a1, 24a2, 24b, 24c1, 24c2, 24d, respectively, by fasteners such as hot-dip galvanized bolts and nuts. Each of the external reinforcing members 24a1, 24a2, 24b, 24c1, 24c2, 24d is in the shape of a strip-shaped plate member having a length of 2.3 m made of a galvanized reinforcing i-beam having a size ranging from 0.102 m depth × 0.152 m flange × 13.4kg/m in weight (4"× 6" × 13.4kg/m) to 0.133 m depth × 0.51 m flange × 30kg/m (5.25"× 20" × 30 kg/m).

Fig. 3 shows a fully assembled tank 30 comprising a body 31, a top cover 32, a base 33 and internal supports 34.

In this embodiment, the tank 30 has a similar square configuration, and the dimensions of the composite panel and the overall tank are similar to those substantially described with reference to FIG. 1. This embodiment includes a plurality of internal stiffening members 34, which internal stiffening members 34 are constituted by internal supports positioned and mounted in the interior of the main body 31 of the tank 30. These internal supports 34 are stainless steel rods and pegs to provide reinforcement to the main body 31 of the tank.

Fig. 4 shows a fully assembled tank 40 comprising a body 41, a top cover 42, a base 43 and an internal support 44.

In this embodiment, the reservoir 40 has a similar rectangular configuration and the dimensions of the composite panel are similar to those substantially described with reference to FIG. 2. The main body 41 of the tank 40 is defined by four walls 41a, 41b, 41c, 41 d. The two opposite side walls 41a, 41c are made up of twelve composite panels connected to each other by fasteners such as hot-dip galvanized bolts and nuts. The other two opposite side walls 41b, 41d are made up of eight composite panels connected to each other by fasteners such as hot-dip galvanized bolts and nuts. The top cover 42 is comprised of twenty-four aluminum panels, which are square panels having a length of 1.0 meter, a width of 1.0 meter, and a thickness of 2.0 millimeters. The top cover 42 is connected and fastened to the top surfaces of the four walls 41a, 41b, 41c, 41d by fasteners such as hot-dip galvanized bolts and nuts. The base 43 of the tank 40 is constructed from twenty-four similar composite panels.

This embodiment includes a plurality of internal stiffening members 44, which internal stiffening members 44 are constituted by internal supports positioned and mounted in the interior of the main body 41 of the tank 40. These internal supports 44 are constructed of stainless steel rods and pegs to provide reinforcement to the main body 41 of the tank.

The present invention may be embodied in other ways than those specifically set forth herein without departing from the scope of the utility model.

Claims (6)

1. A reservoir (10; 20) comprising:

a body (1; 21) formed by a set of walls, wherein each wall is defined by a plurality of composite panels connected to each other by fasteners;

a top cover (2; 22) defined by a plurality of aluminium panels connected to each other by fasteners and fixed to the top of the body by fasteners; and

a base (3; 23) defined by a plurality of composite panels connected to each other by fasteners and fixed to the bottom of the body;

characterized in that each of said plurality of composite panels forming said body (1; 21) and said substrate (3; 23) comprises:

an inner steel plate which is a stainless steel plate; and

an outer steel plate which is a hot-dip galvanized mild steel plate;

wherein the inner steel plate and the outer steel plate are connected by forming a seam weld between overlapping portions of the inner steel plate and the outer steel plate, or

Wherein the inner steel plate and the outer steel plate are connected by performing an adhesion treatment using an adhesive.

2. A tank (10; 20) according to claim 1 characterized in that said body (1; 21) and substrate (3; 23) are coated with a coating comprising a phosphatizing primer or a silver paint.

3. A tank (10; 20) according to claim 1 or 2, characterized in that the tank (10; 20) further comprises a plurality of external stiffening members (4a, 4b, 4c, 4 d; 24a1, 24a2, 24b, 24c1, 24c2, 24d), said plurality of external stiffening members (4a, 4b, 4c, 4 d; 24a1, 24a2, 24b, 24c1, 24c2, 24d) being mounted on the outer surface of the wall (1a, 1b, 1c, 1 d; 21a, 21b, 21c, 21d) of the body (1; 21), respectively, by fasteners.

4. A tank (10; 20) according to claim 3 wherein the external strengthening members (4a, 4b, 4c, 4 d; 24a1, 24a2, 24b, 24c1, 24c2, 24d) comprise strip-shaped plates made of galvanized I-beams.

5. A reservoir (30; 40) according to claim 1 or 2, wherein the reservoir (30; 40) further comprises a plurality of internal supports (34; 44), the plurality of internal supports (34; 44) being mounted on an inner surface of the body (31; 41).

6. A composite panel structure comprising:

an inner steel plate which is a stainless steel plate; and

an outer steel plate which is a hot-dip galvanized mild steel plate;

wherein the inner steel plate and the outer steel plate are connected by forming a seam weld between overlapping portions of the inner steel plate and the outer steel plate, or

Wherein the inner steel plate and the outer steel plate are connected by performing an adhesion treatment using an adhesive.

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