A composite material water tank device

Abstract

The utility model discloses a composite material water tank device, comprising a composite layer tank wall, and the composite layer tank wall is in a cylindrical structure; a carbon steel tank wall is arranged above the composite layer tank wall, the carbon steel tank wall is in a cylindrical structure, and the carbon steel tank wall and the composite layer tank wall are welded and fixed; a carbon steel storage tank top is arranged at the top of the carbon steel tank wall, and the carbon steel storage tank top and the carbon steel tank wall are welded and fixed; a tank bottom is arranged at the bottom of the composite layer tank wall, and the tank bottom and the composite layer tank wall are welded and fixed; the composite layer tank wall and the tank bottom are both composed of a base layer and a reinforcement layer, the base layer is located at the outer layer of the composite layer tank wall and the tank bottom, and the reinforcement layer is located at the inner layer of the composite layer tank wall and the tank bottom, which solves the problems that the anti-corrosion coating of the carbon steel inner layer is not firmly adhered, is easy to fall off, and iron ions are precipitated to pollute water quality.

Description

Technical Field

[0001] The utility model relates to the technical field of water system equipment in the chemical industry, in particular to a water storage tank device of a composite material. Background Art

[0002] Water storage tanks are used for storage of purified water after ultrafiltration, two-stage RO, EDI and other treatments, and for water storage equipment for subsequent process systems. Desalted water tanks and other storage tanks are used in the chemical industry to supply water storage equipment for subsequent chemical equipment. The water quality requirements of the desalted water are high, including: TOC≤500μg / L, SiO2≤20μg / L, conductivity≥≤0.2μS / cm.

[0003] However, existing desalted water tanks and other water storage tanks usually include tank bottoms, tank walls and tank tops. In order to avoid water pollution due to oxidation of the water storage tank material, the inner surface material of the water tank must be corrosion-resistant. The interior of the water storage tanks commonly used in China is basically anti-corrosion treated, and polyurea is sprayed inside the carbon steel material. There are problems such as poor adhesion of the anti-corrosion coating layer and easy to fall off. After falling off, the content of iron ions and other substances in the water storage tank increases, causing water pollution and not meeting the requirements of the process system. It is necessary to check the shedding of the anti-corrosion material of the water tank from time to time, and perform secondary anti-corrosion regularly according to the situation. When the water tank needs maintenance, it is necessary to stop the car, empty the water tank, dry it, remove the original shedding layer, remove the metal oxide layer, and spray polyurea. The construction period is nearly 20 days. Not only is the equipment maintenance workload large, but the overall system is shut down due to maintenance. At the same time, the secondary cost of polyurea spraying is high, so it does not meet the existing needs. In this regard, we propose a composite material water storage tank device. Utility Model Content

[0004] The utility model aims to provide a composite water tank device to solve the problems in the above background technology that the inner anti-corrosion coating of carbon steel is not firmly adhered, is easy to fall off, and has iron ions precipitated to pollute water quality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a composite material water tank device, comprising a composite layer tank wall, and the composite layer tank wall is in a cylindrical structure; a carbon steel tank wall is arranged above the composite layer tank wall, the carbon steel tank wall is in a cylindrical structure, and the carbon steel tank wall and the composite layer tank wall are welded and fixed, a carbon steel tank top is arranged at the top of the carbon steel tank wall, and the carbon steel tank top and the carbon steel tank wall are welded and fixed, a tank bottom is arranged at the bottom of the composite layer tank wall, and the tank bottom and the composite layer tank wall are welded and fixed, the composite layer tank wall and the tank bottom are both composed of a base layer and a reinforcement layer, the base layer is located at the outer layer of the composite layer tank wall and the tank bottom, and the reinforcement layer is located at the inner layer of the composite layer tank wall and the tank bottom.

[0006] Preferably, the base layer is made of QB material, the reinforcement layer is made of stainless steel, and the base layer and the reinforcement layer are welded and fixed.

[0007] Preferably, an exhaust hole is provided at the middle position of the upper end surface of the carbon steel storage tank, a fixing ring is fixedly provided below the inner cavity of the exhaust hole straight tube, a first through hole is provided at the center position of the fixing ring, a movable ring is provided above the inner cavity of the exhaust hole straight tube for sliding limit, a cone block is fixedly provided at the center position of the bottom of the movable ring, the diameter of the lower end of the cone block is smaller than the first through hole, and the diameter of the upper end of the cone block is larger than the first through hole, a spring is installed on the outside of the cone block, and the two ends of the spring are respectively in contact with the fixing ring and the movable ring, and the outer ring inside the movable ring is provided with a plurality of second through holes distributed in a ring shape.

[0008] Preferably, a spiral ladder is provided on the outer wall of the composite tank wall, the spiral ladder is welded and fixed to the composite tank wall, and the spiral ladder has a spiral structure, and a railing is welded and fixed to the outer edge of the upper end surface of the carbon steel storage tank top.

[0009] Preferably, a tank top manhole connected to the tank body is provided on one side of the upper end surface of the carbon steel storage tank.

[0010] Preferably, an overflow hole is provided on one side of the carbon steel tank wall, and the bend at the upper end of the overflow hole is sealed and connected to the carbon steel tank wall, a discharge valve is provided on one side of the bottom of the tank, and the outlet end of the discharge valve and the lower end of the overflow hole converge into the same discharge area.

[0011] Preferably, a first liquid level gauge interface is provided at the upper end of the composite layer tank wall cylindrical cavity, and a second liquid level gauge interface is provided at the lower end of the composite layer tank wall cylindrical cavity.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model adopts a composite layer structure for the tank wall and the tank bottom, which is composed of a base layer and a reinforcement layer. It not only solves the problems of weak adhesion, easy falling off and iron ion precipitation of the anti-corrosion coating of the water storage tank coated with carbon steel inside, but also obtains the anti-corrosion performance of the desalted water tank made of all stainless steel, and has better strength than the desalted water tank made of all stainless steel. The initial investment is about 30% of the desalted water tank made of all stainless steel. The investment in the all-stainless steel storage tank does not have the risk of secondary corrosion and precipitated ions polluting the water quality, but its cost is relatively high, and the initial cost is 3 times that of the carbon steel anti-corrosion coating material. Therefore, the present invention not only ensures that the water quality of the desalted water used in the chemical industry is not polluted, but also greatly saves the investment in chemical plants.

[0014] 2. The utility model provides a pressure relief mechanism inside the exhaust hole. Under normal circumstances, the cone block is sealed in the first through hole of the fixed ring under the contraction of the spring to prevent the entry of external impurities and flying insects. When pressure is generated inside the tube body due to gas expansion, the cone block will be squeezed to drive the movable ring to move upward, so that a gap is maintained between the first through hole and the cone block, forming a connection between the first through hole and the second through hole, so that the gas can be discharged in time. At the same time, as the pressure increases, the flow rate between the first through hole and the second through hole also increases, thereby improving the overall pressure relief effect. The pressure relief mechanism has a simple structure and high flexibility, and can achieve reasonable pressure relief of the tube body while preventing the entry of external substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the composite layer structure of the tank wall and tank bottom of the utility model;

[0018] Figure 4 It is a schematic diagram of the internal structure of the exhaust hole of the utility model.

[0019] In the figure: 1. spiral ladder; 2. composite tank wall; 3. carbon steel tank wall; 4. handrail; 5. carbon steel tank top; 6. tank top manhole; 7. exhaust hole; 8. overflow hole; 9. first liquid level gauge interface; 10. second liquid level gauge interface; 11. discharge valve; 12. tank bottom; 13. base layer; 14. reinforcement layer; 15. fixing ring; 16. first through hole; 17. movable ring; 18. cone block; 19. spring; 20. second through hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figure 1-4The utility model provides an embodiment: a composite material water tank device, including a composite layer tank wall 2, and the composite layer tank wall 2 is a cylindrical structure; a carbon steel tank wall 3 is arranged above the composite layer tank wall 2, the carbon steel tank wall 3 is a cylindrical structure, and the carbon steel tank wall 3 is welded and fixed to the composite layer tank wall 2, a carbon steel tank top 5 is arranged on the top of the carbon steel tank wall 3, and the carbon steel tank top 5 is welded and fixed to the carbon steel tank wall 3, a tank bottom 12 is arranged at the bottom of the composite layer tank wall 2, and the tank bottom 12 is welded and fixed to the composite layer tank wall 2, the composite layer tank wall 2 and the tank bottom 12 are both composed of a base layer 13 and a strengthening layer 14, the base layer 13 is located at the outer layer of the composite layer tank wall 2 and the tank bottom 12, and the strengthening layer 14 is located at the inner layer of the composite layer tank wall 2 and the tank bottom 12.

[0022] The stainless steel composite plate is applied to the manufacture of water storage tanks such as desalted water tanks in the chemical industry, which can reduce the problems of easy detachment of the anti-corrosion layer inside the carbon steel equipment, loose adhesion, and iron ions, and avoid the risk of desalted water quality in the carbon steel storage tank being polluted, ensuring the water quality requirements of chemical desalted water. In addition to obtaining the anti-corrosion performance of stainless steel, the purpose of reducing equipment investment and engineering costs.

[0023] See also Figure 3 , the base layer 13 is made of Q235B, the strengthening layer 14 is made of 304 stainless steel, and the base layer 13 and the strengthening layer 14 are welded and fixed. Q235B anti-corrosion spiral steel pipe can effectively resist corrosion in various complex environments due to its excellent anti-corrosion performance and strong mechanical properties such as compression, tension and bending resistance; 0Cr18Ni9 stainless steel has excellent heat resistance and corrosion resistance, especially in oxidizing acid, alkali solution and most organic acid, inorganic acid, as well as in the atmosphere, water, steam and other environments. Therefore, using 0Cr18Ni9 stainless steel on the surface or key parts of Q235B steel can greatly enhance its corrosion resistance, especially in harsh chemical environments.

[0024] See also Figure 4 An exhaust hole 7 is arranged at the middle position of the upper end surface of the carbon steel storage tank top 5, a fixing ring 15 is fixedly arranged below the inner cavity of the straight tube of the exhaust hole 7, a first through hole 16 is arranged at the center position of the fixing ring 15, a movable ring 17 is slidingly limited above the inner cavity of the straight tube of the exhaust hole 7, a cone block 18 is fixedly arranged at the center position of the bottom of the movable ring 17, the lower end diameter of the cone block 18 is smaller than the first through hole 16, and the upper end diameter of the cone block 18 is larger than the first through hole 16, a spring 19 is installed on the outside of the cone block 18, and the two ends of the spring 19 are respectively in contact with the fixing ring 15 and the movable ring 17, and the outer ring inside the movable ring 17 is provided with a plurality of second through holes 20 distributed in an annular shape. The pressure relief mechanism has a simple structure and high flexibility, which can achieve reasonable pressure relief of the pipe body while avoiding the entry of external substances.

[0025] See also Figure 1A spiral ladder 1 is arranged on the outer wall of the composite tank wall 2, and the spiral ladder 1 is welded and fixed to the composite tank wall 2, and the spiral ladder 1 has a spiral structure. A railing 4 is welded and fixed to the outer edge of the upper end surface of the carbon steel tank top 5. The setting of the spiral ladder 1 enables the staff to easily climb to the top of the water tank for daily inspection, maintenance and cleaning. This helps to improve the maintenance efficiency of the water tank and reduce the maintenance cost. The setting of the top railing 4 effectively prevents the risk of accidental falling of the staff when working on the top of the water tank, greatly improving the work safety.

[0026] See also Figure 1 and Figure 2 A tank top manhole 6 connected to the tank body is provided on one side of the upper end surface of the carbon steel storage tank top 5, which is convenient for daily maintenance.

[0027] See also Figure 2 An overflow hole 8 is provided on one side of the carbon steel tank wall 3, and the bending part of the upper end of the overflow hole 8 is sealed and connected to the carbon steel tank wall 3. A discharge valve 11 is provided on one side of the bottom of the tank bottom 12, and the outlet end of the discharge valve 11 and the lower end of the overflow hole 8 are converged into the same discharge area, so as to facilitate the discharge of the liquid inside the water tank.

[0028] See also Figure 2 A first liquid level gauge interface 9 is provided at the upper end of the composite tank wall 2 cavity, and a second liquid level gauge interface 10 is provided at the lower end of the composite tank wall 2 cavity, so as to facilitate the internal liquid level monitoring of the water tank.

[0029] Working principle: Under normal circumstances, the cone block 18 is sealed in the first through hole 16 of the fixed ring 15 under the contraction action of the spring 19 to prevent the entry of external impurities and flying insects. When pressure is generated inside the tube body due to gas expansion, the cone block 18 will be squeezed to drive the movable ring 17 to move upward, so that a gap is maintained between the first through hole 16 and the cone block 18, forming a connection between the first through hole 16 and the second through hole 20, so that the gas can be discharged in time. At the same time, as the pressure increases, the flow rate between the first through hole 16 and the second through hole 20 also increases, thereby improving the overall pressure relief effect.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A composite material water storage tank device, comprising a composite layer tank wall (2), wherein the composite layer tank wall (2) is a cylindrical structure; characterized in that: A carbon steel tank wall (3) is arranged above the composite tank wall (2), the carbon steel tank wall (3) is in a cylindrical structure, and the carbon steel tank wall (3) and the composite tank wall (2) are welded and fixed, a carbon steel tank top (5) is arranged at the top of the carbon steel tank wall (3), and the carbon steel tank top (5) and the carbon steel tank wall (3) are welded and fixed, a tank bottom (12) is arranged at the bottom of the composite tank wall (2), and the tank bottom (12) and the composite tank wall (2) are welded and fixed, the composite tank wall (2) and the tank bottom (12) are both composed of a base layer (13) and a strengthening layer (14), the base layer (13) is located at the outer layer of the composite tank wall (2) and the tank bottom (12), and the strengthening layer (14) is located at the inner layer of the composite tank wall (2) and the tank bottom (12).

2. A composite material water tank device according to claim 1, characterized in that: The base layer (13) is made of Q235B material, the strengthening layer (14) is made of 304 stainless steel material, and the base layer (13) and the strengthening layer (14) are fixed by welding.

3. The composite water tank device according to claim 1, characterized in that: An exhaust hole (7) is provided at the middle position of the upper end surface of the carbon steel storage tank top (5), a fixed ring (15) is fixedly provided below the inner cavity of the straight tube of the exhaust hole (7), a first through hole (16) is provided at the center position of the fixed ring (15), a movable ring (17) is provided above the inner cavity of the straight tube of the exhaust hole (7) for sliding limit, a cone block (18) is fixedly provided at the center position of the bottom of the movable ring (17), the lower end diameter of the cone block (18) is smaller than the first through hole (16), and the upper end diameter of the cone block (18) is larger than the first through hole (16), a spring (19) is installed outside the cone block (18), and the two ends of the spring (19) are respectively in contact with the fixed ring (15) and the movable ring (17), and the outer ring inside the movable ring (17) is provided with a plurality of second through holes (20) distributed in an annular shape.

4. The composite water tank device according to claim 1, characterized in that: A spiral ladder (1) is arranged on the outer wall of the composite tank wall (2), the spiral ladder (1) is welded and fixed to the composite tank wall (2), and the spiral ladder (1) is in a spiral structure. A railing (4) is welded and fixed to the outer edge of the upper end surface of the carbon steel tank top (5).

5. The composite water tank device according to claim 1, characterized in that: A tank top manhole (6) connected to the tank body is provided on one side of the upper end surface of the carbon steel tank top (5).

6. The composite water tank device according to claim 1, characterized in that: An overflow hole (8) is provided on one side of the carbon steel tank wall (3), and the bend at the upper end of the overflow hole (8) is sealed and connected to the carbon steel tank wall (3). A discharge valve (11) is provided on one side of the bottom of the tank bottom (12), and the outlet end of the discharge valve (11) and the lower end of the overflow hole (8) are connected to the same discharge area.

7. The composite water tank device according to claim 1, characterized in that: A first liquid level gauge interface (9) is provided at the upper end of the composite layer tank wall (2) barrel cavity, and a second liquid level gauge interface (10) is provided at the lower end of the composite layer tank wall (2) barrel cavity.

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