A stainless steel-titanium alloy insulation container resistant to electrolyte corrosion

Abstract

The present invention belongs to the technical field of alloy production of electrolyte storage tanks, and in particular, is a stainless steel-titanium alloy thermal insulation container resistant to electrolyte corrosion, comprising an electrolyte tank body and a bracket for supporting and fixing the electrolyte tank body, the electrolyte tank body is made of titanium alloy, and the outer surface of the electrolyte tank body is provided with a thermal insulation cover, the thermal insulation cover is made of stainless steel, and a thermal insulation mechanism and a connecting mechanism are provided between the thermal insulation cover and the electrolyte tank body. The stainless steel-titanium alloy thermal insulation container resistant to electrolyte corrosion, by providing a thermal insulation mechanism, is convenient for solving the problem that the existing electrolyte tank body material cannot effectively resist corrosion and withstand temperature changes. The electrolyte tank body made of titanium alloy and the thermal insulation cover made of stainless steel improve its corrosion resistance. At the same time, the space formed between the electrolyte tank body and the thermal insulation cover is further improved through the sealing gasket sleeve and the inert gas, thereby improving the service life and storage performance of the electrolyte tank body.

Description

Technical Field

[0001] The invention relates to the technical field of alloy production of electrolyte storage tanks, and in particular to a stainless steel-titanium alloy heat-insulating container resistant to electrolyte corrosion. Background Art

[0002] An electrolyte tank is a container for storing electrolytes, commonly used in applications such as flow batteries. The electrolyte tank material must be able to withstand the chemical properties of the battery liquid, such as acids, alkalis or other corrosive chemicals. At the same time, the electrolyte tank material needs to have sufficient mechanical strength to withstand the pressure of long-term use. The battery may experience temperature changes during the charging and discharging process, so the electrolyte tank material needs to be able to withstand these temperature fluctuations.

[0003] However, existing electrolyte tank materials may not be able to withstand the chemical properties of specific electrolytes, especially under extreme conditions, which may cause corrosion or damage to the electrolyte tank. In addition, the performance of the electrolyte tank material may degrade in high or low temperature environments, affecting the storage and use of the electrolyte, thereby reducing the service life of the electrolyte tank. Summary of the invention

[0004] Based on the above-mentioned existing technical problems, the present invention proposes a stainless steel-titanium alloy thermal insulation container resistant to electrolyte corrosion.

[0005] The present invention proposes a stainless steel-titanium alloy thermal insulation container resistant to electrolyte corrosion, comprising an electrolyte tank body and a bracket for supporting and fixing the electrolyte tank body, the electrolyte tank body is made of titanium alloy, the outer surface of the electrolyte tank body is provided with a thermal insulation cover, the material of the thermal insulation cover is stainless steel, and a thermal insulation mechanism and a connecting mechanism are provided between the thermal insulation cover and the electrolyte tank body.

[0006] The heat-insulating mechanism is used for heat preservation so that the electrolyte in the electrolyte tank body maintains a constant temperature.

[0007] Wherein, the connecting mechanism is used to fix and support the heat-insulating cover and the electrolyte tank body together.

[0008] Preferably, the outer surface of the electrolyte tank is coated with high temperature resistant heat insulating coating.

[0009] Through the above technical solution, the high temperature resistant thermal insulation coating is used for thermal insulation in high temperature environment to improve the thermal insulation performance of the electrolyte tank.

[0010] Preferably, the thermal insulation mechanism comprises spacer blocks distributed in a ring array on the outer surface of the electrolyte tank body, and the spacer blocks are fixedly connected to the outer surface of the high temperature resistant thermal insulation coating through a modified silane adhesive.

[0011] Through the above technical solution, the modified silane adhesive can form a strong bonding force with the surface of polytetrafluoroethylene, so that the spacer block can be better bonded to the surface of the electrolyte tank.

[0012] Preferably, the inner wall of the heat-insulating cover is provided with spacers in a circular array, and a plurality of the spacers and a plurality of the spacer blocks are distributed in a cross-staggered manner.

[0013] Through the above technical solution, a support frame is formed by the distribution of the spacer blocks and the spacers, which wraps the electrolyte tank body, thereby supporting and fixing the space between the heat preservation cover and the electrolyte tank body.

[0014] Preferably, the spacer block and the spacer are made of polytetrafluoroethylene.

[0015] Through the above technical solution, polytetrafluoroethylene has excellent chemical resistance to almost all chemicals, so that the spacer blocks and spacers can ensure stable spacing support between the insulation cover and the electrolyte tank body.

[0016] Preferably, the bottoms of the plurality of spacers are fixedly connected to support blocks that fit the bottom of the electrolyte tank, and the support blocks are made of fiberglass.

[0017] Through the above technical solution, FRP is a plastic composite material reinforced by glass fiber. Due to its light weight, high strength and corrosion resistance, it is convenient to serve as a base to firmly support the electrolyte tank. At the same time, FRP can withstand temperature changes within a certain range and is suitable for electrolyte tanks used at different temperatures, and can effectively play a role in thermal insulation.

[0018] Preferably, a sealing gasket sleeve is fixedly installed in the cavity formed between the spacer and the spacer block, the sealing gasket sleeve is made of nitrile rubber, and the interior of the sealing gasket sleeve is filled with an inert gas.

[0019] Through the above technical scheme, nitrile rubber is a synthetic rubber with good chemical resistance and wear resistance. It is used as a gasket for sealing to prevent leakage of inert gas. The space between the electrolyte tank and the insulation cover is filled with thermal insulating inert gas to improve the thermal insulation performance of the electrolyte tank.

[0020] Preferably, the connecting mechanism includes perforations and threaded holes distributed in a rectangular array on the surface of the heat insulation cover, the inner wall of the threaded hole is threadedly sleeved with a first screw, the inner wall of the perforation is fixedly connected with a mounting sleeve, the inner wall of the mounting sleeve is provided with an internal thread, the inner wall of the mounting sleeve is threadedly connected with a second screw, and a limiting block is fixedly installed at one end of the second screw.

[0021] Through the above technical solution, the spacer connects the insulation cover and the electrolyte tank body together through the threaded connection between the first screw and the threaded hole, and the second screw is first inserted into the perforated installation sleeve to allow the limit block to be inserted between the clamping columns.

[0022] Preferably, the surface of the mounting sleeve is symmetrically distributed with grooves extending therethrough, the inner walls of the two grooves are slidably engaged with clamping columns, both ends of the spacer block are provided with grooves, the surfaces of the clamping columns are slidably engaged with the inner walls of the grooves, and a spring is installed between the two clamping columns via a connecting block.

[0023] Through the above technical solution, as the second screw rotates, the second screw is connected to the installation sleeve, so that the second screw extends in, making it easier for the clamping column to enter the clamping groove along the inner wall of the groove, thereby connecting the spacer block and the spacer together.

[0024] Preferably, the limiting block is slidably connected to a surface of the second screw rod and a surface of the spring.

[0025] Through the above technical solution, the rotation of the second screw rod drives the limit block to rotate without interfering with the extension and contraction of the spring, so that the movement trajectories of the two will not interfere with each other.

[0026] The beneficial effects of the present invention are:

[0027] 1. By setting up a thermal insulation mechanism, it is convenient to solve the problem that the existing electrolyte tank material cannot effectively resist corrosion and withstand temperature changes. The electrolyte tank made of titanium alloy and the thermal insulation cover made of stainless steel have improved corrosion resistance. At the same time, the space formed between the electrolyte tank and the thermal insulation cover is further improved through the sealing gasket and inert gas, thereby improving the service life and storage performance of the electrolyte tank.

[0028] 2. By setting up a connecting mechanism, the electrolyte tank body and the insulation cover are connected through the distribution of spacer blocks and spacers, so as to better achieve the effect of thermal insulation. The spacer is connected to the electrolyte tank body and the spacer is connected to the spacer block through the first screw and the second screw in turn, so as to achieve the effect of support and fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of a stainless steel-titanium alloy heat-insulating container resistant to electrolyte corrosion proposed by the present invention;

[0030] Figure 2 A three-dimensional diagram of the heat preservation cover structure of a stainless steel-titanium alloy heat preservation container resistant to electrolyte corrosion proposed by the present invention;

[0031] Figure 3A three-dimensional diagram of the sealing gasket structure of a stainless steel-titanium alloy heat-insulating container resistant to electrolyte corrosion proposed by the present invention;

[0032] Figure 4 A three-dimensional diagram of the spacer structure of a stainless steel-titanium alloy heat-insulating container resistant to electrolyte corrosion proposed by the present invention;

[0033] Figure 5 A three-dimensional diagram of the perforated structure of a stainless steel-titanium alloy heat-insulating container resistant to electrolyte corrosion proposed by the present invention;

[0034] Figure 6 A three-dimensional diagram of the electrolyte tank structure of a stainless steel-titanium alloy heat-insulating container resistant to electrolyte corrosion proposed by the present invention;

[0035] Figure 7 A three-dimensional diagram of the spacer block structure of a stainless steel-titanium alloy heat-insulating container resistant to electrolyte corrosion proposed by the present invention;

[0036] Figure 8 A three-dimensional diagram of the clamping column structure of a stainless steel-titanium alloy heat-insulating container resistant to electrolyte corrosion proposed by the present invention;

[0037] Fig. 9 A three-dimensional diagram of the limit block structure of a stainless steel-titanium alloy heat-insulating container resistant to electrolyte corrosion proposed by the present invention;

[0038] Fig.10 A three-dimensional diagram of the spring structure of a stainless steel-titanium alloy heat-insulating container resistant to electrolyte corrosion proposed by the present invention.

[0039] In the figure: 1. electrolyte tank; 2. bracket; 3. insulation cover; 4. spacer block; 41. modified silane adhesive; 42. spacer; 43. support block; 44. sealing gasket sleeve; 5. perforation; 501. threaded hole; 502. first screw; 503. mounting sleeve; 504. internal thread; 505. second screw; 506. limit block; 507. groove; 508. clamping column; 509. clamping slot; 510. connecting block; 511. spring; 6. high temperature resistant thermal insulation coating. DETAILED DESCRIPTION

[0040] 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 the embodiments.

[0041] Reference Figure 1-Figure 10A stainless steel-titanium alloy thermal insulation container resistant to electrolyte corrosion comprises an electrolyte tank body 1 and a bracket 2 for supporting and fixing the electrolyte tank body 1. The electrolyte tank body 1 is made of titanium alloy. A thermal insulation cover 3 is arranged on the outer surface of the electrolyte tank body 1. The thermal insulation cover 3 is made of stainless steel. A thermal insulation mechanism and a connecting mechanism are arranged between the thermal insulation cover 3 and the electrolyte tank body 1.

[0042] Among them, in order to keep the electrolyte tank 1 warm so that the electrolyte in the electrolyte tank 1 is kept at a constant temperature, the thermal insulation mechanism includes spacer blocks 4 distributed in a ring array on the outer surface of the electrolyte tank 1, and the spacer blocks 4 are fixedly connected to the outer surface of the high temperature resistant thermal insulation coating 6 through a modified silane adhesive 41. The inner wall of the thermal insulation cover 3 is provided with spacers 42 distributed in a ring array, and multiple spacers 42 and multiple spacer blocks 4 are cross-staggered. The material of the spacer blocks 4 and the spacer blocks 42 is polytetrafluoroethylene. The modified silane adhesive 41 can form a strong bonding force with the surface of polytetrafluoroethylene, so that the spacer blocks 4 can be better bonded to the surface of the electrolyte tank 1. A support frame is formed by the distribution of the spacer blocks 4 and the spacer 42, which wraps the electrolyte tank 1, thereby supporting and fixing the space between the thermal insulation cover 3 and the electrolyte tank 1.

[0043] In order to connect the spacer block 4 with the electrolyte tank body 1 made of titanium alloy, a high temperature resistant heat insulating coating 6 is coated on the outer surface of the electrolyte tank body 1. The high temperature resistant heat insulating coating 6 is used for heat insulation in a high temperature environment to improve the heat insulation performance of the electrolyte tank body 1.

[0044] In order to facilitate the support of the electrolyte tank body 1, a support block 43 that fits the bottom of the electrolyte tank body 1 is fixedly connected to the bottom of the multiple spacers 42. The support block 43 is made of fiberglass. FRP is a plastic composite material reinforced with glass fiber. Due to its light weight, high strength and corrosion resistance, it is convenient to serve as a base to firmly support the electrolyte tank body 1. At the same time, fiberglass can withstand temperature changes within a certain range and is suitable for the electrolyte tank body 1 used at different temperatures, and can effectively play a role in thermal insulation.

[0045] In order to better insulate the electrolyte tank body 1, a sealing gasket sleeve 44 is fixedly installed in the cavity formed between the spacer 42 and the spacer block 4. The sealing gasket sleeve 44 is made of nitrile rubber. The interior of the sealing gasket sleeve 44 is filled with an inert gas. Nitrile rubber is a synthetic rubber with good chemical resistance and wear resistance. It is used as a gasket to seal and prevent leakage of the inert gas. The space between the electrolyte tank body 1 and the insulation cover 3 is filled with the thermally insulating inert gas to improve the thermal insulation performance of the electrolyte tank body 1.

[0046] By providing a heat preservation and heat insulation mechanism, it is convenient to solve the problem that the existing electrolyte tank body 1 material cannot effectively resist corrosion and withstand temperature changes. The electrolyte tank body 1 made of titanium alloy and the heat preservation cover 3 made of stainless steel have improved corrosion resistance. At the same time, the space formed between the electrolyte tank body 1 and the heat preservation cover 3 is further improved through the sealing gasket sleeve 44 and the inert gas, thereby improving the service life and storage performance of the electrolyte tank body 1.

[0047] Among them, in order to fix and support the insulation cover 3 and the electrolyte tank body 1 together, the connection mechanism provided includes a through hole 5 and a threaded hole 501 distributed in a rectangular array on the surface of the insulation cover 3, the inner wall of the threaded hole 501 is threadedly sleeved with a first screw 502, the inner wall of the through hole 5 is fixedly connected with a mounting sleeve 503, the inner wall of the mounting sleeve 503 is provided with an internal thread 504, the inner wall of the mounting sleeve 503 is threadedly connected with a second screw 505, one end of the second screw 505 is fixedly installed with a limit block 506, and the spacer 42 connects the insulation cover 3 and the electrolyte tank body 1 together through the threaded connection between the first screw 502 and the threaded hole 501, and the second screw 505 is first inserted into the mounting sleeve 503 of the through hole 5, so that the limit block 506 is inserted between the clamping column 508.

[0048] In order to facilitate the connection between the spacer 42 and the spacer block 4, grooves 507 are symmetrically distributed and penetrated on the surface of the installation sleeve 503. The inner walls of the two grooves 507 are slidably engaged with posts 508. Both ends of the spacer block 4 are provided with grooves 509. The surfaces of the posts 508 are slidably engaged with the inner walls of the grooves 509. A spring 511 is installed between the two posts 508 through a connecting block 510. As the second screw rod 505 rotates, the second screw rod 505 is connected to the installation sleeve 503, so that the second screw rod 505 extends in, which facilitates the post 508 to enter the groove 509 along the inner wall of the groove 507, thereby connecting the spacer block 4 and the spacer 42 together.

[0049] In order to facilitate the rotation of the second screw 505, the limit block 506 is slidably connected to the surface of the second screw 505 and the surface of the spring 511, so that the rotation of the second screw 505 drives the limit block 506 to rotate without interfering with the extension and contraction of the spring 511, so that the movement trajectories of the two will not interfere with each other.

[0050] By setting up a connecting mechanism, the electrolyte tank body 1 and the thermal insulation cover 3 are connected through the distribution of the spacer block 4 and the spacer 42, so that the thermal insulation effect can be better achieved. The spacer 42 is connected to the electrolyte tank body 1 and the spacer 42 is connected to the spacer block 4 through the first screw 502 and the second screw 505 in sequence, so as to achieve the effect of support and fixation.

[0051] Working principle: When in use, the spacer blocks 4 are bonded to the surface of the electrolyte tank 1 coated with the high temperature resistant heat insulation coating 6 by the modified silane adhesive 41 in a rectangular array, and the spacers 42 on the heat preservation cover 3 are staggered and plugged with the spacer blocks 4;

[0052] Then, the first screw 502 is connected through the threaded hole 501 to connect the heat preservation cover 3 with the electrolyte tank body 1, and then the second screw 505 is inserted into the installation sleeve 503 of the perforation 5, so that the limit block 506 is inserted between the clamping columns 508, and the second screw 505 is rotated when the external thread on the second screw 505 contacts the internal thread 504 in the installation sleeve 503. As the second screw 505 is extended, it is easy to drive the two clamping columns 508 to move out along the inner wall of the groove 507 and clamp with the clamping groove 509, so as to facilitate the connection of the spacer block 4 and the spacer 42. At the same time, as the two clamping columns 508 are separated, the spring 511 stretches to generate elasticity;

[0053] At the same time, the inert gas is introduced into the sealing gasket 44 to facilitate heat insulation of the electrolyte tank 1, thereby improving the storage performance of the electrolyte tank 1;

[0054] When replacement is required, the second screw rod 505 is rotated in the opposite direction to be taken out, and the two clamping columns 508 are rebounded from the clamping slot 509 to the groove 507 under the elastic force of the spring 511, so as to facilitate the separation of the spacer block 4 and the spacer 42.

[0055] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stainless steel-titanium alloy heat-insulating container resistant to electrolyte corrosion, comprising an electrolyte tank body (1) and a bracket (2) for supporting and fixing the electrolyte tank body (1), characterized in that: The electrolyte tank body (1) is made of titanium alloy, a heat preservation cover (3) is provided on the outer surface of the electrolyte tank body (1), the heat preservation cover (3) is made of stainless steel, and a heat preservation and insulation mechanism and a connection mechanism are provided between the heat preservation cover (3) and the electrolyte tank body (1); The outer surface of the electrolyte tank (1) is coated with a high temperature resistant heat insulating coating (6); Wherein, the thermal insulation mechanism is used for heat preservation; The heat-insulating mechanism comprises spacer blocks (4) arranged in an annular array on the outer surface of the electrolyte tank (1), the spacer blocks (4) being fixedly connected to the outer surface of the high-temperature resistant heat-insulating coating (6) via a modified silane adhesive (41), the inner wall of the heat-insulating cover (3) being provided with spacers (42) in an annular array, a plurality of the spacers (42) and a plurality of the spacer blocks (4) being arranged in a cross-staggered manner, a sealing gasket sleeve (44) being fixedly installed in a cavity formed between the spacer blocks (42) and the spacer blocks (4), the interior of the sealing gasket sleeve (44) being filled with an inert gas; Wherein, the connecting mechanism is used to fix and support the heat-insulating cover (3) and the electrolyte tank body (1) together; The connection mechanism comprises through holes (5) and threaded holes (501) distributed in a rectangular array on the surface of the heat-insulating cover (3); the inner wall of the threaded hole (501) is threadedly sleeved with a first screw rod (502); the inner wall of the through hole (5) is fixedly connected with a mounting sleeve (503); the inner wall of the mounting sleeve (503) is provided with an internal thread (504); the inner wall of the mounting sleeve (503) is threadedly connected with a second screw rod (505); and one end of the second screw rod (505) is fixedly mounted with a limiting block (506); The surface of the mounting sleeve (503) is symmetrically distributed with grooves (507) extending therethrough, and the inner walls of the two grooves (507) are slidably engaged with clamping columns (508). Both ends of the spacing block (4) are provided with clamping grooves (509), and the surface of the clamping column (508) is slidably engaged with the inner walls of the clamping grooves (509). A spring (511) is installed between the two clamping columns (508) via a connecting block (510).

2. The stainless steel-titanium alloy heat-insulating container resistant to electrolyte corrosion according to claim 1, characterized in that: The material of the spacer block (4) and the spacer (42) is polytetrafluoroethylene.

3. The stainless steel-titanium alloy heat-insulating container resistant to electrolyte corrosion according to claim 1, characterized in that: The bottoms of the plurality of spacers (42) are all fixedly connected to a support block (43) that fits the bottom of the electrolyte tank (1), and the support block (43) is made of glass fiber reinforced plastic.

4. The stainless steel-titanium alloy heat-insulating container resistant to electrolyte corrosion according to claim 1, characterized in that: The sealing gasket sleeve (44) is made of nitrile rubber.

5. The stainless steel-titanium alloy heat-insulating container resistant to electrolyte corrosion according to claim 1, characterized in that: The limiting block (506) is slidably connected to the surface of the second screw rod (505) and the surface of the spring (511).

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