Double-layer carbon source storage tank structure made of stainless steel reinforced glass fibers

By using fiberglass as the inner tank and stainless steel as the outer tank, and by installing a plastic film support and a non-contact liquid level sensor in the gap, the problems of corrosion resistance and liquid level monitoring of the storage tank are solved, thereby improving the corrosion resistance of the storage tank and enabling real-time liquid level monitoring.

CN223865516UActive Publication Date: 2026-02-03JIANGSU CHANGHONG GLASS FIBRE REINFORCED PLASTIC CO LTD
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Patent Information

Application Number
CN202421996713.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-16
Publication Date
2026-02-03
Estimated Expiration
2034-08-16

AI Technical Summary

Technical Problem

Existing double-walled storage tanks are prone to corrosion of the inner stainless steel layer under extreme environments or long-term use, which affects their service life and makes it difficult to monitor liquid level changes in real time.

Method used

The inner tank is made of fiberglass and the outer tank is made of stainless steel. A plastic film is installed in the gap for support. Combined with a non-contact liquid level sensor and alarm system, it can realize real-time monitoring of liquid level and leakage alarm.

Benefits of technology

It improves the corrosion resistance and service life of the storage tank, and can detect and alarm changes in liquid level in a timely manner, ensuring the safety and reliability of the storage tank.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of double-layer carbon source storage tanks, and provides a stainless steel reinforced glass fiber double-layer carbon source storage tank structure which sequentially comprises a glass fiber reinforced plastic inner tank and a stainless steel outer tank from inside to outside, and a gap is formed between the glass fiber reinforced plastic inner tank and the stainless steel outer tank. The double-layer storage tank has the beneficial effects that the corrosion resistance of the double-layer storage tank is improved, and the service life is prolonged.
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Description

Technical Field

[0001] This application relates to the technical field of double-layer carbon source storage tanks, and in particular to a structure of a double-layer carbon source storage tank made of stainless steel reinforced glass fiber. Background Technology

[0002] With the increasing awareness of safety and environmental protection in my country, the safety of various chemical storage tanks is receiving more and more attention. If chemicals stored in these tanks leak, it can cause environmental pollution, affecting the air, soil, and other environments. Therefore, according to relevant regulations, most chemical storage tanks currently use double-walled carbon source tanks, which offer relatively higher safety compared to single-walled tanks.

[0003] Existing double-walled storage tanks mostly adopt a structural design with an inner stainless steel layer and an outer fiberglass layer to store liquids or gases. Although this design can prevent the internal substances from directly contacting the external environment to a certain extent, the stainless steel in the inner layer may corrode under certain extreme environments or long-term use, affecting the service life of the double-walled storage tank. Therefore, further improvements are needed. Utility Model Content

[0004] To improve the corrosion resistance and service life of the double-walled storage tank, this application provides a double-walled carbon source storage tank structure made of stainless steel reinforced glass fiber.

[0005] This application provides a double-layer carbon source storage tank structure made of stainless steel and reinforced glass fiber, which adopts the following technical solution:

[0006] A double-layer carbon source storage tank structure made of stainless steel reinforced glass fiber includes a fiberglass inner tank and a stainless steel outer tank from the inside out, with a gap between the fiberglass inner tank and the stainless steel outer tank.

[0007] By adopting the above technical solution, since fiberglass has better corrosion resistance than stainless steel, fiberglass can be used as the inner tank and stainless steel as the outer tank, thereby improving the corrosion resistance and service life of the storage tank.

[0008] Preferably, it also includes a filler disposed within the gap.

[0009] By adopting the above technical solution, since a gap will be left between the fiberglass inner tank and the stainless steel outer tank during the manufacturing process, the inner fiberglass inner tank may be suspended when put into use. Therefore, a filler is set in the gap to support the fiberglass inner tank.

[0010] Preferably, the filler is a plastic film wrapped around the outer peripheral wall of the fiberglass inner tank, and several fillers are spaced apart along the length of the fiberglass inner tank.

[0011] By adopting the above technical solution, the filler is made of plastic film, which has a relatively low cost and a high density after being wrapped in multiple layers, providing good support for the fiberglass inner tank. However, during the wrapping process, due to the limited width of the plastic film and the relatively long length of the fiberglass inner tank, and because the tank has outlet, inlet, and inspection ports, wrapping the plastic film along the entire length of the fiberglass is relatively cumbersome. Therefore, the filler is spaced out in several places to reduce the difficulty of wrapping.

[0012] Preferably, a leakage detection device is provided between the fiberglass inner tank and the stainless steel outer tank. The leakage detection device includes a detection wire wound around the fiberglass inner tank and a liquid level sensor electrically connected to the detection wire. The liquid level sensor is a non-contact liquid level sensor. The detection wire extends to the outside of the stainless steel outer tank. The leakage detection device is electrically connected to a central control platform that processes the signal transmitted by the liquid level sensor.

[0013] By adopting the above technical solution, since the double-walled tank is usually buried underground and it is not easy to check the internal liquid level, a leakage detection device is installed, specifically including a non-contact liquid level sensor and a detection wire, which is electrically connected to the external power supply and the central control platform to detect the liquid level in the fiberglass inner tank by the liquid level sensor, and to determine whether there is a leakage based on the signal processing.

[0014] Preferably, a plurality of leakage detection elements are arranged at intervals along the length of the fiberglass inner tank, and a plurality of liquid level sensors are arranged at intervals along the height of the fiberglass inner tank.

[0015] By adopting the above technical solution, since some of the substances stored in the storage tank will be used and some will be reduced, several liquid level sensors are installed, and adjacent liquid level sensors are at different heights, to detect the liquid level in the fiberglass inner tank at different times to determine whether there is leakage.

[0016] Preferably, the leakage detection device is electrically connected to an alarm, which is located on the outside of the stainless steel outer tank, and the central control platform is electrically connected to a controller that executes instructions sent by the central control platform after processing the transmitted data.

[0017] By adopting the above technical solution and installing an alarm, the central control platform will issue corresponding instructions to activate the alarm based on the leakage situation, so as to promptly report the leakage situation to the staff and carry out timely repairs.

[0018] Preferably, the outer peripheral wall of the fiberglass inner tank is provided with a plurality of first pipes extending along its length, and the stainless steel outer tank includes an upper cover plate and a lower cover plate with a semi-circular cross-section in the radial direction. The upper cover plate and the lower cover plate are fixedly connected, and the first pipes pass through the upper cover plate.

[0019] By adopting the above technical solution, the production of the fiberglass inner tank mainly includes spray molding or hand lay-up molding, while the stainless steel is usually a pre-made sheet or sleeve. However, when stainless steel is used as the outer tank, if a sleeve is used, since the first pipe is set on the fiberglass inner tank, when installing the stainless steel outer tank on the fiberglass inner tank, two upper and lower cover plates with semi-circular cross-sections are first made to facilitate processing and reduce processing difficulty.

[0020] Preferably, the outer peripheral wall of the upper cover plate is fixedly provided with a second pipe sleeved outside the first pipe, and the outer peripheral wall of the first pipe is provided with a flange that is fixedly connected to the upper surface of the second pipe.

[0021] By adopting the above technical solution, the connection strength between the two is improved by using a first pipe and a flange that is fixedly connected to the upper surface of the second pipe and protrudes from the outer peripheral wall of the first pipe, and the sealing performance of the substance stored in the fiberglass tank is increased.

[0022] In summary, this utility model has the following beneficial effects:

[0023] 1. Since fiberglass has better corrosion resistance than stainless steel, fiberglass is used as the inner tank and stainless steel as the outer tank, thereby improving the corrosion resistance and service life of the storage tank.

[0024] 2. The fiberglass inner tank is supported by filling elements placed in the gaps. Attached Figure Description

[0025] Figure 1 This is a side sectional view of an embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the structure of the filler and leakage detection element in the embodiments of this application;

[0027] Explanation of reference numerals in the attached drawings: 1. Fiberglass inner tank; 11. First pipe; 111. Flanged edge; 2. Filler; 3. Stainless steel outer tank; 31. Second pipe; 311. Flange; 32. Upper cover plate; 33. Lower cover plate; 4. Gap; 5. Leakage detection element; 51. Detection wire; 52. Liquid level sensor; 6. Alarm. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail below.

[0029] This application discloses a double-layer carbon source storage tank structure made of stainless steel reinforced glass fiber.

[0030] Example:

[0031] A double-walled carbon source storage tank structure made of stainless steel and reinforced glass fiber, with reference to Figure 1 , Figure 2 From the inside out, it includes a fiberglass inner tank 1, a filler 2, and a stainless steel outer tank 3. A gap 4 is formed between the fiberglass inner tank 1 and the stainless steel outer tank 3 for placing the filler 2.

[0032] The outer periphery of the fiberglass inner tank 1 is provided with several first pipes 11 extending along its length, specifically three, namely, a liquid outlet, a detection port, and a liquid inlet. The outer periphery of the stainless steel outer tank 3 is fixedly provided with a second pipe 31 that is sleeved outside the first pipes 11. The stainless steel outer tank 3 specifically includes two upper cover plates 32 and lower cover plates 33 with semi-circular cross sections in the radial direction. The upper cover plates 32 and lower cover plates 33 are fixedly connected by welding. The second pipe 31 is fixedly provided through the upper cover plate 32, and the upper cover plate 32 has through holes for the second pipe 31 to be fixedly provided.

[0033] Furthermore, to improve the connection strength between the fiberglass inner tank 1 and the stainless steel outer tank 3, a flange 111 is provided protruding from the outer peripheral wall of the first pipe 11 of the fiberglass inner tube. The flange 111 is fixedly connected to the upper surface of the second pipe 31, and a flange 311 is welded to the outer peripheral wall of the second pipe 31. The flange 311 is flush with the flange 111.

[0034] In this embodiment, the filler 2 is specifically a plastic film wrapped around the outer peripheral wall of the fiberglass inner tank 1, wrapped multiple times to form a plastic ring, the outer peripheral wall of the plastic ring abuts against the inner peripheral wall of the stainless steel outer tank 3, and several plastic rings are spaced apart along the length of the fiberglass inner tank 1.

[0035] A leakage detection element 5 is installed between the fiberglass inner tank 1 and the stainless steel outer tank 3. In this embodiment, several leakage detection elements 5 are spaced apart along the length of the fiberglass inner tank 1, specifically distributed within the installation space formed between adjacent plastic rings. The leakage detection element 5 specifically includes a detection wire 51 wound around the fiberglass inner tank 1 and a liquid level sensor 52 electrically connected to the detection wire 51. The two ends of the detection wire 51 pass through the tank wall of the stainless steel outer tank 3 and extend to the outside of the stainless steel outer tank 3. The liquid level sensor 52 is a non-contact liquid level sensor 52, which is adhered to the inner circumferential wall of the stainless steel outer tank 3. Several liquid level sensors 52 are spaced apart along the height direction of the fiberglass inner tank 1 to detect the height of the liquid stored in the tank after use, thereby increasing the accuracy of leakage detection in the tank.

[0036] It should be noted that the detection wire 51 is electrically connected to a central control platform (not shown in the figure) that processes the signal transmitted by the liquid level sensor 52, and is also electrically connected to an alarm 6. The alarm 6 can be fixedly connected to the outer wall of the stainless steel outer tank 3 or fixed to the ground. The central control platform is electrically connected to a controller (not shown in the figure) that executes the instructions sent by the central control platform after processing the transmitted data. The controller is electrically connected to the alarm 6.

[0037] The implementation principle of the stainless steel reinforced fiberglass double-layer carbon source storage tank structure in this application embodiment is as follows: Fiberglass is used as the inner tank, and stainless steel as the outer tank. Since fiberglass has better corrosion resistance than stainless steel, the corrosion resistance and service life of the storage tank are improved. When the stored material in the tank is not in use, data transmitted to the central control platform via the liquid level sensor 52 indicates a drop in the liquid level. At this time, a corresponding command is sent to the controller, causing the alarm 6 to sound an alarm to notify personnel for timely maintenance.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A double-layer carbon source storage tank structure made of stainless steel and reinforced glass fiber, characterized in that: The container consists of a fiberglass inner tank (1) and a stainless steel outer tank (3) from the inside out. A gap (4) is formed between the fiberglass inner tank (1) and the stainless steel outer tank (3). Several first pipes (11) are provided through the outer peripheral wall of the fiberglass inner tank (1) along its length. The stainless steel outer tank (3) includes two upper cover plates (32) and lower cover plates (33) with semi-circular cross sections in the radial direction. The upper cover plates (32) and lower cover plates (33) are fixedly connected. The first pipes (11) pass through the upper cover plates (32). It also includes a filler (2) disposed in the gap (4), the filler (2) being a plastic film wrapped around the outer peripheral wall of the fiberglass inner tank (1), and several fillers (2) being disposed at intervals along the length of the fiberglass inner tank (1); A leakage detection device (5) is provided between the fiberglass inner tank (1) and the stainless steel outer tank (3). The leakage detection device (5) includes a detection wire (51) wound around the fiberglass inner tank (1) and a liquid level sensor (52) electrically connected to the detection wire (51). The liquid level sensor (52) is a non-contact liquid level sensor. The detection wire (51) extends to the outside of the stainless steel outer tank (3). The leakage detection device (5) is electrically connected to a central control platform that processes the signal transmitted by the liquid level sensor (52). Several leakage detection devices (5) are arranged at intervals along the length direction of the fiberglass inner tank (1), and several liquid level sensors (52) are arranged at intervals along the height direction of the fiberglass inner tank (1).

2. The double-layer carbon source storage tank structure made of stainless steel reinforced glass fiber according to claim 1, characterized in that: The leakage detection device (5) is electrically connected to an alarm (6), which is located on the outside of the stainless steel outer tank (3). The central control platform is electrically connected to a controller that executes the instructions sent by the central control platform after processing the transmitted data.

3. The double-layer carbon source storage tank structure made of stainless steel reinforced glass fiber according to claim 1, characterized in that: The outer peripheral wall of the upper cover plate (32) is fixedly provided with a second pipe (31) sleeved outside the first pipe (11), and the outer peripheral wall of the first pipe (11) is provided with a flange (111) fixedly connected to the upper surface of the second pipe (31).