Sealing structure of material inlet and outlet of dangerous chemical storage tank

Abstract

The utility model discloses a sealing structure of a feeding and discharging port of a dangerous chemical storage tank, which relates to the technical field of chemical storage tanks and comprises a chemical storage tank body, a supporting plate is fixedly mounted at the bottom of the chemical storage tank body, and a feeding and discharging pipe is fixedly mounted at the top of the chemical storage tank body. A sealing ring plate is fixedly mounted at the top of the inner wall of the feeding and discharging pipe, a storage tank cover is fixedly mounted in the sealing ring plate, and a flange sealing ring is fixedly mounted at the bottom of an inner cavity of the feeding and discharging pipe. According to the utility model, the threaded rotating connecting column is controlled to descend, so that the top plate is pushed to act on the pushing hole, the top plate effectively pushes the buffer column and the lower pressing ring to perform ordered buffer pressing action, and the rubber ring part at the bottom of the lower pressing ring is guided by the specific inclination angle of the extrusion block to uniformly extrude and move towards the inner side; and therefore, the sealing performance of the equipment is improved, and the safety of the chemical storage tank is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical storage tanks, and particularly relates to a sealing structure for the inlet and outlet of a hazardous chemical storage tank. Background Technique

[0002] Hazardous chemicals refer to highly toxic chemicals and other chemicals with properties such as toxicity, corrosion, explosion, combustion, and combustion support, which are harmful to the human body, facilities, and the environment. Such chemicals are often stored in hazardous chemical storage tanks.

[0003] In the existing technical solution, the publication number: CN218930536U is proposed, a chemical storage tank with an interface sealing structure, including a storage tank and a fixed pipe fixedly connected to one side of the storage tank. An installation pipe is fixedly sleeved on the outer surface of the fixed pipe. A first sealing gasket is provided on the upper surface of the installation pipe. A sealing groove is provided on the upper surface of the first sealing gasket. A second sealing gasket abuts against the upper surface of the first sealing gasket. A sealing rib is fixedly connected to the bottom of the second sealing gasket. One end of the sealing rib abuts against the inside of the sealing groove. One end of the second sealing gasket is provided with a locking sleeve. One end of the locking sleeve is threadedly sleeved on the outer surface of the installation pipe.

[0004] In order to solve the problem that when the position of the sealing ring is misaligned during installation, the sealing performance at the filling port will be reduced, which is likely to cause the leakage of chemical gas. The existing technology uses the cooperation of an installation pipe, a first sealing gasket, a second sealing gasket, a sealing rib, a locking sleeve, a rubber ring, and a rubber sealing column, so as to facilitate the improvement of the sealing performance at the interface of the storage tank and avoid the leakage of gas or liquid inside the chemical storage tank. The locking sleeve can facilitate the fixing of the first sealing gasket and the second sealing gasket at the interface of the storage tank. However, there will still be a situation where the sealing mechanism at the inlet and outlet of the hazardous chemical storage tank is prone to looseness during frequent pipe opening operations, resulting in leakage of the hazardous chemical storage tank, and further leading to the safety problem of the staff. Content of the Utility Model

[0005] The purpose of the utility model is to provide a sealing structure for the inlet and outlet of a hazardous chemical storage tank to solve the problems raised in the above background technique.

[0006] To solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A sealing structure for the inlet and outlet of a hazardous chemical storage tank, including a chemical storage tank main body. A support plate is fixedly installed at the bottom of the chemical storage tank main body. A feed and discharge pipe is fixedly installed at the top of the chemical storage tank main body. A sealing ring plate is fixedly installed at the top of the inner wall of the feed and discharge pipe. A storage tank cover is fixedly installed inside the sealing ring plate.

[0008] A flange sealing ring is fixedly installed at the bottom of the inner cavity of the inlet and outlet pipe. A connecting column is threadedly sleeved on the top of the flange sealing ring. A nut is threadedly connected to the top of the connecting column. A reinforcing ring is movably sleeved in the middle of the connecting column. The inner side of the reinforcing ring is fixedly installed on the outer side of the flange sealing ring. A pressing mechanism is arranged at the bottom of the flange sealing ring.

[0009] An inner ring is fixedly installed inside the sealing ring plate, and a sealing mechanism is arranged inside the inner ring.

[0010] A further improvement of the technical solution of the present utility model lies in that: the pressing mechanism includes a bottom ring block, a sealing base is fixedly installed on the top of the bottom ring block, and an adjusting groove is opened on the top of the sealing base.

[0011] By adopting the above technical solution, through the mutual cooperation of the sealing base and the adjusting groove, the function of sliding adjustment is achieved.

[0012] A further improvement of the technical solution of the present utility model lies in that: an extrusion block is movably installed inside the adjusting groove, and a threaded rod is threadedly connected inside the extrusion block.

[0013] By adopting the above technical solution, through the mutual cooperation of the extrusion block and the threaded rod, the extrusion block is pushed by rotating the threaded rod.

[0014] A further improvement of the technical solution of the present utility model lies in that: a pressing ring is movably installed inside the extrusion block, an installation groove is opened on the top of the pressing ring, and a buffer column is movably installed inside the installation groove.

[0015] By adopting the above technical solution, through the mutual cooperation of the pressing ring, the installation groove and the buffer column, the function of downward pressing and moving is achieved.

[0016] A further improvement of the technical solution of the present utility model lies in that: the top of the buffer column is movably connected to a top plate, and a pushing hole is opened on the top of the top plate.

[0017] A further improvement of the technical solution of the present utility model lies in that: the sealing mechanism includes a trapezoidal sleeve ring, an inner ring is fixedly installed inside the trapezoidal sleeve ring, and the top of the inner ring is movably connected to the bottom of the storage tank cover.

[0018] By adopting the above technical solution, through the mutual cooperation of the trapezoidal sleeve ring and the inner ring, stepped installation is achieved, and the sealing performance is increased.

[0019] A further improvement of the technical solution of the present utility model lies in that: an assembly port is opened on the top of the inner ring, and the inner part of the assembly port is movably installed on the bottom of the storage tank cover.

[0020] Due to adopting the above technical solution, the technical progress obtained by the present utility model compared with the prior art is:

[0021] 1. The present utility model provides a sealing structure for the inlet and outlet of a hazardous chemical storage tank. A flange sealing ring is provided on the inlet and outlet pipe as a key sealing element to achieve stability and sealing effect. Then, threaded connection is carried out by using connecting columns, and a reinforcing ring is provided for additional reinforcement. By screwing the nut at the top and with appropriate tightening force, the gasket inside the flange sealing ring is forced to be extruded, thereby filling the gap and significantly enhancing the sealing performance of the device, thus realizing an efficient and reliable sealing installation function.

[0022] 2. The present utility model provides a sealing structure for the inlet and outlet of a hazardous chemical storage tank. By controlling the threaded rotation of the connecting column to descend, and then pushing the top plate to act on the push hole, the top plate effectively pushes the buffer column and the downward pressure ring to perform an orderly buffer downward movement. The rubber ring part at the bottom of the downward pressure ring is guided by the specific inclination angle of the extrusion block and is uniformly extruded and moved inward to achieve the downward pressure sealing function, thereby improving the sealing performance of the equipment and further enhancing the safety of the chemical storage tank.

[0023] 3. The present utility model provides a sealing structure for the inlet and outlet of a hazardous chemical storage tank. In the sealing installation of the storage tank cover, a sealing ring plate and the storage tank cover are combined. The positioning and calibration assembly port at the bottom of the storage tank cover ensures that the storage tank cover can be conveniently inserted and installed. Then, the bottom of the storage tank cover is clamped in an arch shape at the top of the trapezoidal sleeve ring and the inner ring. This turning connection method effectively realizes mechanical sealing. Bolts are fixed at the top of the storage tank cover by threaded connection to ensure the stable installation of the device and further improve its sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the present utility model;

[0025] Figure 2 is a schematic structural diagram of the inlet and outlet pipe of the present utility model;

[0026] Figure 3 is a schematic structural diagram of the downward pressure ring of the present utility model;

[0027] Figure 4 is a schematic structural diagram of the sealing base of the present utility model;

[0028] Figure 5 is a schematic structural diagram of the sealing ring plate of the present utility model.

[0029] In the figure: 1. Main body of chemical storage tank; 2. Support plate; 3. Inlet and outlet pipe; 31. Flange sealing ring; 32. Connecting column; 33. Reinforcing ring; 34. Nut; 35. Bottom ring block; 36. Sealing base; 361. Adjusting groove; 362. Extrusion block; 363. Threaded rod; 37. Pressing ring; 371. Installation groove; 372. Buffer column; 373. Top plate; 374. Pushing hole; 4. Storage tank cover; 5. Sealing ring plate; 51. Inner ring; 52. Assembly port; 53. Trapezoidal sleeve ring; 54. Inner side ring. Specific implementation mode

[0030] The following further elaborates on the present utility model in conjunction with embodiments:

[0031] Embodiment 1

[0032] As Figure 1 , Figure 2 , Figure 3 shown, this embodiment provides a sealing structure for the inlet and outlet of a hazardous chemical storage tank, including the main body 1 of the chemical storage tank. A support plate 2 is fixedly installed at the bottom of the main body 1 of the chemical storage tank. An inlet and outlet pipe 3 is fixedly installed at the top of the main body 1 of the chemical storage tank. A sealing ring plate 5 is fixedly installed at the top of the inner wall of the inlet and outlet pipe 3. A storage tank cover 4 is fixedly installed inside the sealing ring plate 5. A flange sealing ring 31 is fixedly installed at the bottom of the inner cavity of the inlet and outlet pipe 3. A connecting column 32 is threadedly sleeved on the top of the flange sealing ring 31. A nut 34 is threadedly connected to the top of the connecting column 32. A reinforcing ring 33 is movably sleeved in the middle of the connecting column 32. The inner side of the reinforcing ring 33 is fixedly installed on the outer side of the flange sealing ring 31. A pressing mechanism is arranged at the bottom of the flange sealing ring 31. By arranging the flange sealing ring 31 on the inlet and outlet pipe 3, the reinforcing ring 33 is threadedly connected by using the connecting column 32 for reinforcement and counterweight. Then, the nut 34 at the top is screwed, and with the tightening force, the gasket inside the flange sealing ring 31 is forced to be extruded to seal and fill the gap, thereby enhancing the sealing performance of the device and achieving the function of sealed installation.

[0033] Embodiment 2

[0034] As Figure 4As shown in the figure, on the basis of Embodiment 1, this embodiment provides a technical solution: Preferably, the pressing mechanism includes a bottom ring block 35. A sealing base 36 is fixedly installed on the top of the bottom ring block 35. An adjustment groove 361 is opened on the top of the sealing base 36. An extrusion block 362 is movably installed inside the adjustment groove 361. A threaded rod 363 is threadedly connected inside the extrusion block 362. A pressing ring 37 is movably installed inside the extrusion block 362. An installation groove 371 is opened on the top of the pressing ring 37. A buffer column 372 is movably installed inside the installation groove 371. The top of the buffer column 372 is movably connected to a top plate 373. A push hole 374 is opened on the top of the top plate 373. By rotating the threaded connection column 32, the connection column 32 descends and pushes on the push hole 374. The top plate 373 is used to push the buffer column 372 and the pressing ring 37 for buffered pressing. The rubber ring part at the bottom of the pressing ring 37 is affected by the inclination angle of the extrusion block 362 and is squeezed and moved inward, achieving the function of downward pressing and sealing, improving the sealing performance of the equipment, and increasing the safety of the chemical storage tank.

[0035] Embodiment 3

[0036] As Figure 5 shown in the figure, on the basis of Embodiment 1, this embodiment provides a technical solution: Preferably, an inner ring 51 is fixedly installed inside the sealing ring plate 5. A sealing mechanism is arranged inside the inner ring 51. The sealing mechanism includes a trapezoidal sleeve ring 53. An inner side ring 54 is fixedly installed inside the trapezoidal sleeve ring 53. The top of the inner side ring 54 is movably connected to the bottom of the storage tank cover 4. An assembly port 52 is opened on the top of the inner ring 51. The bottom of the storage tank cover 4 is movably installed inside the assembly port 52. When the sealing ring plate 5 and the storage tank cover 4 are sealed and installed, the bottom of the storage tank cover 4 positions and corrects the assembly port 52, facilitating the convenient plug-in installation of the storage tank cover 4. The bottom of the storage tank cover 4 is in a bow-shaped clamping connection at the top of the trapezoidal sleeve ring 53 and the inner side ring 54. A mechanical seal is carried out by using a turning connection method. Then, fixing bolts are threadedly connected to the top of the storage tank cover 4 for fixed installation, facilitating the improvement of the sealing performance of the device.

[0037] Next, specifically describe the working principle of the sealing structure of the inlet and outlet of the hazardous chemical storage tank.

[0038] As Figures 1-5As shown in the figure, a flange sealing ring 31 is provided through the feeding and discharging pipe 3, and the reinforcing ring 33 is threadedly connected by using the connecting column 32 for reinforcement and counterweight. Then, the nut 34 at the top is screwed, and with the tightening force, the gasket inside the flange sealing ring 31 is stressed and extruded to seal and fill the gap, thereby enhancing the sealing performance of the device and achieving the function of sealed installation. When the sealing ring plate 5 is sealed and installed with the storage tank cover 4, the bottom positioning and calibration assembly port 52 of the storage tank cover 4 facilitates the convenient plug-in installation of the storage tank cover 4, so that the bottom of the storage tank cover 4 is bow-shaped and clamped at the top of the trapezoidal sleeve ring 53 and the inner ring 54. By using the turning connection method, mechanical sealing is carried out. Then, fixing bolts are threadedly connected to the top of the storage tank cover 4 for fixed installation, which is convenient for the device to improve the sealing performance. When the sealing ring plate 5 is sealed and installed with the storage tank cover 4 again, the bottom positioning and calibration assembly port 52 of the storage tank cover 4 facilitates the convenient plug-in installation of the storage tank cover 4, so that the bottom of the storage tank cover 4 is bow-shaped and clamped at the top of the trapezoidal sleeve ring 53 and the inner ring 54. By using the turning connection method, mechanical sealing is carried out. Then, fixing bolts are threadedly connected to the top of the storage tank cover 4 for fixed installation, which is convenient for the device to improve the sealing performance.

[0039] The above generally describes the present invention in detail, but based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, the modifications or improvements made without departing from the spirit and idea of the present invention are within the protection scope of the present invention.

Claims

1. A sealing structure for an inlet and outlet of a hazardous chemical storage tank, comprising a chemical storage tank body (1), characterized in that: A support plate (2) is fixedly mounted on the bottom of the chemical storage tank body (1), an inlet and outlet pipe (3) is fixedly mounted on the top of the chemical storage tank body (1), a sealing ring plate (5) is fixedly mounted on the top of the inner wall of the inlet and outlet pipe (3), and a storage tank cover (4) is fixedly mounted inside the sealing ring plate (5); A flange sealing ring (31) is fixedly mounted at the bottom of the inner cavity of the inlet and outlet pipe (3), a connecting column (32) is threadedly sleeved at the top of the flange sealing ring (31), a nut (34) is threadedly sleeved at the top of the connecting column (32), a reinforcement ring (33) is movably sleeved at the middle of the connecting column (32), the inner side of the reinforcement ring (33) is fixedly mounted on the outer side of the flange sealing ring (31), and a pressing mechanism is provided at the bottom of the flange sealing ring (31); An inner ring (51) is fixedly mounted on the inner side of the sealing ring plate (5), and a sealing mechanism is provided on the inner side of the inner ring (51).

2. The sealing structure of the inlet and outlet of the hazardous chemical storage tank according to claim 1 is characterized in that: The pressing mechanism comprises a bottom ring block (35), a sealing base (36) is fixedly mounted on the top of the bottom ring block (35), and an adjustment groove (361) is provided on the top of the sealing base (36).

3. The sealing structure of the inlet and outlet of the hazardous chemical storage tank according to claim 2 is characterized by: An extrusion block (362) is movably installed inside the adjustment groove (361), and a threaded rod (363) is threadedly connected to the inside of the extrusion block (362).

4. The sealing structure for the inlet and outlet of a hazardous chemical storage tank according to claim 3 is characterized in that: A lower pressure ring (37) is movably mounted on the inner side of the extrusion block (362), a mounting groove (371) is formed on the top of the lower pressure ring (37), and a buffer column (372) is movably mounted inside the mounting groove (371).

5. The sealing structure for the inlet and outlet of a hazardous chemical storage tank according to claim 4 is characterized in that: The top of the buffer column (372) is movably connected to a top plate (373), and a top pushing hole (374) is opened on the top of the top plate (373).

6. The sealing structure for the inlet and outlet of a hazardous chemical storage tank according to claim 1 is characterized in that: The sealing mechanism comprises a trapezoidal collar (53), an inner ring (54) is fixedly mounted on the inner side of the trapezoidal collar (53), and the top of the inner ring (54) is movably connected to the bottom of the storage tank cover (4).

7. The sealing structure for the inlet and outlet of a hazardous chemical storage tank according to claim 1 is characterized in that: An assembly opening (52) is provided at the top of the inner ring (51), and the interior of the assembly opening (52) is movably mounted on the bottom of the storage tank cover (4).

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