Chemical storage tanks with double sealing structure

Abstract

This utility model provides a chemical storage tank with a double-sealed structure, including a tank body and a top cover. The tank body has an upper cover at the top, and a connecting ring is located on the top of the upper cover. Multiple slots are distributed on the inner circumferential wall of the connecting ring, and positioning holes are located at the ends of the slots. A hinge seat is located on the outer circumferential wall of the tank body, and a connecting shaft is hinged to the hinge seat. A locking ring is located at the other end of the connecting shaft, and the locking ring is movably connected to the top cover, allowing the top cover to rotate within the locking ring. A plug corresponding to the slot is located on the inner circumferential wall of the top cover, and a positioning component matching the positioning hole is located at the end of the plug. An overflow port is located on the inner circumferential wall of the upper cover, and a sealing ring adapted to the overflow port is located at the bottom of the top cover. By rotating the top cover, the plug slides along the slot to the positioning hole position, and the positioning component locks, achieving rapid opening and closing of the sealing structure.

Description

Technical Field

[0001] This utility model relates to the field of storage tanks, and in particular to chemical storage tanks with a double-sealed structure. Background Technology

[0002] In modern chemical production, storage tanks are an indispensable key piece of equipment, used to store various liquid, gaseous, or semi-solid chemical raw materials. Storage tanks can be classified into many types according to their design and function, and their performance directly affects the safety and efficiency of chemical production.

[0003] A chemical storage tank, as described in Chinese patent document CN202320347542.0, includes a tank body with an opening at the top and a sealing cap on the opening. An outer protective shell is fitted over the outer side of the tank body. The lower end of the tank body is fixedly mounted on the base plate of the outer protective shell via support columns. One side of the upper port of the outer protective shell is hinged to one side of a movable cover. The movable cover and the upper port of the outer protective shell are connected by multiple connecting units. A gas filling port is located at the top of the movable cover, and a leak detection assembly is located at the bottom of the outer protective shell. The outer protective shell and the movable cover form a sealed space outside the tank body, isolating the tank body from the external environment. In the event of a chemical leak from the tank body, this effectively prevents the chemicals from being directly exposed to the external environment and causing harm to the environment and human health.

[0004] However, the above-mentioned patent has certain drawbacks in use. In some chemical environments, it is necessary to frequently open the storage tank for material extraction or addition. The above technical solution uses multiple connecting units between the movable cover and the upper port of the outer protective shell, specifically bolt connection. Each time it is opened, multiple bolts need to be removed, which is cumbersome and time-consuming, increasing the labor intensity of the operators.

[0005] To address these issues, a chemical storage tank with a double-sealed structure is proposed. Utility Model Content

[0006] In order to overcome the shortcomings of existing technologies that require cumbersome and time-consuming operations when opening or sealing storage tanks, this utility model provides a chemical storage tank with a double-sealing structure.

[0007] This utility model is achieved using the following technical solution:

[0008] A chemical storage tank with a double-sealed structure includes a tank body and a top cover. The top of the tank body is provided with an upper end cover, and a connecting ring is provided on the top of the upper end cover. Multiple slots are distributed on the inner peripheral wall of the connecting ring, and a positioning hole is provided at the end of the slot.

[0009] The outer peripheral wall of the tank is provided with a hinge seat, and a connecting shaft is hinged to the hinge seat. The other end of the connecting shaft is provided with a locking ring, which is movably connected to the top cover. The top cover can rotate in the locking ring. The inner peripheral wall of the top cover is provided with a plug that corresponds to the slot. The end of the plug is provided with a positioning component that matches the positioning hole.

[0010] An overflow prevention port is provided on the inner peripheral wall of the upper end cover, and a sealing ring adapted to the overflow prevention port is provided at the bottom of the top cover.

[0011] As a preferred embodiment of this utility model, the positioning component includes a telescopic sleeve and a ball bearing. One end of the telescopic sleeve is connected to the inner peripheral wall of the top cover, and the other end of the telescopic sleeve is connected to the ball bearing. The ball bearing matches the positioning hole. An elastic element is provided inside the telescopic sleeve, and the elastic element is specifically a return spring.

[0012] As a preferred embodiment of this utility model, the bottom of the tank is also provided with a movable platform, the bottom of the movable platform is equipped with multiple universal wheels, the top of the movable platform is provided with a positioning sleeve, the positioning sleeve is adapted to the outer peripheral wall of the tank, the top of the movable platform is also provided with a tray, the tray is in contact with the bottom of the tank, and a shock-absorbing spring is provided between the tray and the movable platform.

[0013] As a preferred embodiment of this utility model, the tank body includes an inner tank wall and an outer tank wall, with an insulation cavity formed between the inner tank wall and the outer tank wall, and an overflow port provided on the outer tank wall, which is connected to the insulation cavity.

[0014] As a preferred embodiment of this utility model, the top cover is symmetrically provided with handles.

[0015] In a preferred embodiment of this utility model, the slot is specifically L-shaped.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. By setting a hinge seat on the outer peripheral wall of the tank and setting a locking ring at the end of the connecting shaft, the top cover can be rotated in the locking ring to achieve quick locking and separation. By rotating the top cover, the plug can be slid along the slot to the positioning hole position, and the positioning component can be locked to achieve quick opening and closing of the sealing structure.

[0018] 2. A movable platform is set at the bottom of the tank to facilitate equipment movement. The positioning sleeve assists in positioning the tank to prevent displacement during movement. The shock-absorbing springs at the bottom of the pallet effectively reduce vibration and impact during transportation and protect the stability of the tank structure.

[0019] 3. The tank is divided into an inner tank wall and an outer tank wall, forming an insulation cavity. When filling with liquid or warm liquid, the double-wall structure can effectively reduce heat loss. At the same time, the steam generated in the inner tank wall can be discharged through the overflow port after accumulation, avoiding pressure buildup. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the overall tooling of this utility model;

[0021] Figure 2 This is an exploded view of the present invention;

[0022] Figure 3 This is a structural diagram of the tank body and locking ring of this utility model;

[0023] Figure 4 This is a structural diagram of the top cover of this utility model;

[0024] Figure 5 This is a structural diagram of the positioning component of this utility model;

[0025] Figure 6 This is an internal sectional view of the tank body of this utility model;

[0026] In the diagram: 1. Tank body; 11. Inner tank wall; 12. Outer tank wall; 13. Top cover; 131. Overflow port; 14. Connecting ring; 141. Slot; 1411. Positioning hole; 2. Hinge; 21. Connecting shaft; 22. Locking ring; 3. Top cover; 31. Plug; 311. Positioning component; 32. Sealing ring; 4. Telescopic sleeve; 41. Ball bearing; 42. Return spring; 5. Handle; 6. Overflow port; 7. Moving platform; 71. Positioning sleeve; 72. Tray; 73. Shock-absorbing spring; 74. Casters. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] Example:

[0029] Please see Figures 1-6 A chemical storage tank with a double-sealed structure includes a tank body 1 and a top cover 3. The top of the tank body 1 is provided with an upper end cover 13, and a connecting ring 14 is provided on the top of the upper end cover 13. Multiple slots 141 are distributed on the inner peripheral wall of the connecting ring 14, and a positioning hole 1411 is provided at the end of the slot 141.

[0030] In this embodiment, specific reference is made. Figure 2 and Figure 3The tank body 1 and the upper cover 13 are integrally formed. The tank body 1 is a hollow cylindrical structure with one end open. The upper cover 13 is located at the open end of the tank body 1. The connecting ring 14 on the top of the upper cover 13 is used for quick sealing. The multiple slots 141 on the connecting ring 14 are specifically L-shaped. At the end of the L-shaped slot 141, that is, at the end of the lateral extension section, there is a positioning hole 1411. The positioning hole 1411 is used to lock the position of the top cover 3.

[0031] The outer peripheral wall of the tank body 1 is provided with a hinge seat 2, and a connecting shaft 21 is hinged to the hinge seat 2. The other end of the connecting shaft 21 is provided with a locking ring 22. The locking ring 22 is embedded in and can be movably connected to the top cover 3. The top cover 3 can rotate in the locking ring 22. The inner peripheral wall of the top cover 3 is provided with a plug 31 that corresponds to and cooperates with the slot 141. The end of the plug 31 is provided with a positioning component 311 that matches the positioning hole 1411.

[0032] An overflow port 131 is provided on the inner peripheral wall of the upper cover 13, and a sealing ring 32 adapted to the overflow port 131 is provided at the bottom of the top cover 3.

[0033] In this embodiment, the connecting shaft 21 can rotate around the hinge seat 2 to achieve the flipping of the locking ring 22. Simultaneously, as the locking ring 22 flips, it drives the top cover 3 to move synchronously, facilitating opening or closing. Specifically, the locking ring 22 is used to connect the top cover 3. A movable slider is provided on the outer peripheral wall of the top cover 3, and a slide rail is provided on the inner peripheral wall of the locking ring 22. The slider is embedded in the slide rail and can slide along it, allowing the top cover 3 to rotate within the locking ring 22 for rapid locking and unlocking. See the detailed description below. Figure 2 and Figure 3 The top cover 3 has symmetrically arranged handles 5 for easy gripping by operators. A plug 31 is located on the inner bottom side of the top cover 3. The L-shaped vertical section of the slot 141 is used to insert the plug 31, and the L-shaped horizontal section of the slot 141 is used for rotational positioning. When the plug 31 is fully inserted into the slot 141 along the vertical section, rotating the top cover 3 moves the plug 31 along the L-shaped horizontal section until the positioning component 311 is embedded in the positioning hole 1411, achieving a locking and fixing. At this time, the sealing ring 32 and the overflow port 131 are tightly fitted, ensuring the internal seal of the tank 1. To release, rotate the top cover 3 in the opposite direction, causing the positioning component 311 to disengage from the positioning hole 1411, and the plug 31 retracts to the vertical section, allowing the top cover 3 to be pulled upwards to complete the opening. This structure is easy to operate, has a stable connection, and effectively improves the convenience of opening and closing the tank 1 and the reliability of its sealing.

[0034] Specifically, the positioning component 311 includes a telescopic sleeve 4 and a ball 41. One end of the telescopic sleeve 4 is connected to the inner peripheral wall of the top cover 3, and the other end of the telescopic sleeve 4 is connected to the ball 41. The ball 41 matches the positioning hole 1411. An elastic element is provided inside the telescopic sleeve 4, and the elastic element is specifically a return spring 42.

[0035] In this embodiment, specific reference is made. Figure 3 and Figure 4 as well as Figure 5 The positioning component 311 is used to achieve precise positioning and reliable locking between the top cover 3 and the upper end cover 13. The telescopic sleeve 4 has a built-in elastic element. Under normal conditions, it pushes the ball 41 outward. During operation, after the plug 31 is inserted to the bottom along the vertical section of the slot 141, the ball 41 is squeezed in the slot 141 and retracts into the telescopic sleeve 4. The return spring 42 is compressed and undergoes elastic deformation. When the plug 31 is rotated to the end of the L-shaped horizontal section, the ball 41 aligns with the positioning hole 1411 and quickly pops out and embeds into the positioning hole 1411 under the elastic force of the return spring 42, thus achieving positioning and locking.

[0036] Specifically, the bottom of the tank body 1 is also provided with a movable platform 7, the bottom of the movable platform 7 is equipped with multiple universal wheels 74, the top of the movable platform 7 is provided with a positioning sleeve 71, the positioning sleeve 71 is adapted to the outer peripheral wall of the tank body 1, the top of the movable platform 7 is also provided with a tray 72, the tray 72 is in contact with the bottom of the tank body 1, and a shock-absorbing spring 73 is provided between the tray 72 and the movable platform 7.

[0037] In this embodiment, the movable platform 7 at the bottom of the tank 1 is used to drive the tank 1 to move as a whole. The positioning sleeve 71 provides auxiliary positioning for the tank 1 to prevent deviation during movement. The universal wheels 74 are specifically provided at the four corners of the bottom of the movable platform 7, which can realize multi-directional flexible movement. The pallet 72 is used to support the bottom of the tank 1 and enhance the structural stability. The pallet 72 is connected to the movable platform 7 through shock-absorbing springs 73. Multiple shock-absorbing springs 73 are provided and evenly distributed between the pallet 72 and the movable platform 7 to alleviate vibration and impact during transportation and protect the structural stability of the tank 1.

[0038] Specifically, the tank 1 includes an inner tank wall 11 and an outer tank wall 12, with an insulation cavity formed between the inner tank wall 11 and the outer tank wall 12. The outer tank wall 12 is provided with an overflow port 6, which is connected to the insulation cavity.

[0039] In this embodiment, when loading a solution with temperature, condensation may inevitably form on the outer wall of the tank 1 or the internal temperature may dissipate too quickly due to the temperature difference between the inside and outside. The tank 1 includes an outer tank wall 12 and an inner tank wall 11 for filling materials. An insulation layer is provided between the inner tank wall 11 and the outer tank wall 12, as detailed below. Figure 6 An overflow port 6 is provided at the bottom of the outer tank wall 12. The overflow port 6 is connected to the insulation layer. The overflow port 6 is used to drain the condensate or excess liquid accumulated in the insulation layer to prevent structural damage caused by pressure accumulation.

[0040] The principle of this utility model is as follows: when it is necessary to move the tank 1, the tank 1 is first placed on the top of the tray 72 through the positioning sleeve 71, the moving platform 7 is pushed, and the universal wheels 74 are used to achieve flexible steering and smooth movement. During the movement, the shock-absorbing spring 73 buffers the vibration and ensures that the tank 1 remains stable during the movement.

[0041] After moving to the designated position and loading the materials, first rotate the locking ring 22 to the closed position via the connecting shaft 21, so that the plug 31 at the bottom of the top cover 3 aligns with the vertical section of the slot 141 on the outer peripheral wall of the connecting ring 14. Push the plug 31 into the vertical section of the slot 141 to the bottom. Then rotate the top cover 3 to make the plug 31 rotate into the horizontal section of the L-shaped slot 141. When the plug 31 moves to the end of the horizontal section of the L-shaped groove, the ball 41 is quickly ejected and embedded in the positioning hole 1411 under the elastic force of the return spring 42, achieving locking and positioning. The sealing ring 32 fits against the anti-overflow port 131. At this time, the top cover 3 is completely closed, and a sealed space is formed inside the tank 1. When opening, rotate the top cover 3 in the opposite direction to move the plug 31 from the horizontal section of the L-shaped groove back to the vertical section. The ball 41 is squeezed out of the positioning hole 1411, and the plug 31 can be pulled out upward to open the top cover 3.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A chemical storage tank with a double-sealed structure, characterized in that, It includes a tank body (1) and a top cover (3). The top of the tank body (1) is provided with an upper end cover (13). The top of the upper end cover (13) is provided with a connecting ring (14). Multiple slots (141) are distributed on the inner peripheral wall of the connecting ring (14). The end of the slot (141) is provided with a positioning hole (1411). The outer peripheral wall of the tank body (1) is provided with a hinge seat (2), and a connecting shaft (21) is hinged on the hinge seat (2). The other end of the connecting shaft (21) is provided with a locking ring (22). The locking ring (22) is embedded in the top cover (3) and can be connected to it. The top cover (3) can rotate in the locking ring (22). The inner peripheral wall of the top cover (3) is provided with a plug (31) that corresponds to and cooperates with the slot (141). The end of the plug (31) is provided with a positioning component (311) that matches the positioning hole (1411). An overflow port (131) is provided on the inner peripheral wall of the upper end cover (13), and a sealing ring (32) adapted to the overflow port (131) is provided at the bottom of the top cover (3).

2. The chemical storage tank with a double-sealed structure according to claim 1, characterized in that: The positioning component (311) includes a telescopic sleeve (4) and a ball (41). One end of the telescopic sleeve (4) is connected to the inner peripheral wall of the top cover (3), and the other end of the telescopic sleeve (4) is connected to the ball (41). The ball (41) matches the positioning hole (1411). An elastic element is provided inside the telescopic sleeve (4), and the elastic element is specifically a return spring (42).

3. The chemical storage tank with a double-sealed structure according to claim 2, characterized in that: The bottom of the tank (1) is also provided with a movable platform (7), and the bottom of the movable platform (7) is equipped with multiple casters (74). A positioning sleeve (71) is provided above the movable platform (7), and the positioning sleeve (71) is adapted to the outer peripheral wall of the tank (1). A tray (72) is also provided on the top of the movable platform (7), and the tray (72) is in contact with the bottom of the tank (1). A shock-absorbing spring (73) is provided between the tray (72) and the movable platform (7).

4. The chemical storage tank with a double-sealed structure according to claim 1, characterized in that: The tank (1) includes an inner tank wall (11) and an outer tank wall (12), and an insulation cavity is formed between the inner tank wall (11) and the outer tank wall (12). An overflow port (6) is provided on the outer tank wall (12), and the overflow port (6) is connected to the insulation cavity.

5. The chemical storage tank with a double-sealed structure according to claim 1, characterized in that: The top cover (3) is symmetrically provided with handles (5) on its top.

6. The chemical storage tank with a double-sealed structure according to claim 1, characterized in that: The slot (141) is specifically L-shaped.

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