Closed isobutyraldehyde storage tank

Abstract

The utility model discloses a closed isobutyraldehyde storage tank which comprises a wooden outer shell, an iron tank body is fixedly installed on the inner wall of the wooden outer shell, a pipeline is fixedly connected to the inner top wall of the iron tank body, the top end of the pipeline penetrates through and extends to the top of the wooden outer shell, the top of the pipeline is in threaded connection with a sealing cover, and the sealing cover is in threaded connection with the inner wall of the wooden outer shell. A limiting assembly is arranged on the sealing cover, a mounting seat is fixedly connected to the inner top wall of the iron tank body, and an expansion air bag is fixedly mounted on the inner wall of the mounting seat. According to the isobutyraldehyde tank, sealing is achieved by connecting the sealing cover to the top end of the pipeline in a threaded mode, meanwhile, the limiting assembly is matched so that the stability of the sealing cover can be improved, and leakage caused by looseness of the sealing cover in the transportation process is prevented; when the air pressure is normal, the expansion air bag is pressed down by the pressing plate and occupies a small space, and when the air pressure is increased and the storage space starts to be expanded, the expansion air bag can be expanded to play a pressure relief role.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical storage tanks, and specifically, to a closed isobutyraldehyde storage tank. Background Art

[0002] Isobutyraldehyde is needed as a catalyst in the production of alcohol ester dodecyl film-forming products. Isobutyraldehyde is a flammable liquid, flammable when encountering open flames, high temperatures, and oxidants. When storing and transporting isobutyraldehyde, the tank body needs to be sealed. During transportation, the bumps of the vehicle cause isobutyraldehyde to shake and generate heat inside the tank body, increasing the internal pressure, which is prone to spontaneous combustion and even explosion in severe cases, posing a hidden danger to the safety of transportation personnel. At the same time, when in use, after the tank opening is opened, the sealing effect is reduced, and it is prone to deterioration when not used up, affecting the quality of isobutyraldehyde, etc.

[0003] The patent with application number CN2018219105121 discloses a closed isobutyraldehyde storage tank, including a wooden tank body. A sealing pipe is provided at the left end of the upper surface of the wooden tank body. An annular fixing block is provided on the inner side surface of the sealing pipe. An annular groove is provided at the bottom side of the annular fixing block. A sealing gasket is provided inside the annular groove. A connecting rod is provided on the upper surface of the sealing pipe. The bottom end of the connecting rod passes through the upper surface of the sealing pipe and the inside of the annular fixing block through a through hole and is provided with a circular baffle. A ring-shaped convex block is provided on the upper surface of the circular baffle, corresponding to the annular groove. A first spring is sleeved on the side surface of the connecting rod above the sealing pipe. This closed isobutyraldehyde storage tank can increase the internal space of the tank body, prevent spontaneous combustion or explosion due to excessive internal pressure, avoid potential safety hazards to transportation personnel, and at the same time, can seal the unused tank body to prevent deterioration and not affect the quality of isobutyraldehyde, etc.

[0004] This structure sets a baffle supported by a spring inside the tank body, so that when the internal air pressure of the tank body increases, the spring contracts to increase the internal storage space of the tank body. However, the internal connection between the spring and the baffle in this structure greatly reduces the internal space of the tank body, reducing the storage capacity of isobutyraldehyde. At the same time, when the air pressure increases, compressing the spring will generate an opposite acting force, resulting in a poor pressure reduction effect. At the position of the top pipeline of this structure, there are problems of poor sealing effect and more operation steps. Summary of the Utility Model

[0005] Aiming at the problems existing in the prior art, the purpose of the present utility model is to provide a closed isobutyraldehyde storage tank to solve the problems in the background art.

[0006] To achieve the above purpose, the present utility model adopts the following technical solutions;

[0007] A closed isobutyraldehyde storage tank, comprising a wooden outer shell, an iron tank is fixedly installed on the inner wall of the wooden outer shell, a pipeline is fixedly connected to the inner top wall of the iron tank, the top end of the pipeline penetrates and extends to the top of the wooden outer shell, a sealing cover is threadedly connected to the top of the pipeline, a limiting component is arranged on the sealing cover, a mounting seat is fixedly connected to the inner top wall of the iron tank, an expansion airbag is fixedly installed on the inner wall of the mounting seat, the top end of the expansion airbag penetrates and extends to the top of the wooden outer shell, a pressing plate is fixedly connected to the top of the expansion airbag, the pressing plate is slidably connected to the top of the wooden outer shell, a through groove is opened at the bottom of the mounting seat, a sealing cylinder is slidably connected to the inner wall of the mounting seat, the sealing cylinder is located at the top of the through groove and fits with the inner wall of the mounting seat, a first spring is fixedly connected to the inner wall of the mounting seat, and the top end of the first spring is fixedly connected to the sealing cylinder.

[0008] As a further description of the above technical solution: a telescopic sleeve is fixedly connected to the top of the wooden outer shell, and the top of the telescopic sleeve is fixedly installed at the bottom of the pressing plate.

[0009] As a further description of the above technical solution: a sealing plug is fixedly connected to the bottom of the sealing cylinder, and the sealing plug is located inside the through groove and contacts the inner wall of the through groove.

[0010] As a further description of the above technical solution: the limiting component includes a mounting cylinder, the mounting cylinder is fixedly connected to the top of the sealing cover, the bottom end of the mounting cylinder penetrates the sealing cover and extends into the pipeline, two bent rods are slidably connected to the inner wall of the mounting cylinder, a second spring is fixedly connected to the bent rods, the other end of the second spring is fixedly connected to the inner wall of the mounting cylinder, one end of the bent rod located inside the pipeline contacts the pipeline, and the other end of the bent rod penetrates and extends to the outside of the mounting cylinder.

[0011] As a further description of the above technical solution: uniformly distributed limiting grooves are opened on the inner wall of the pipeline, and one end of the bent rod located inside the pipeline is located inside the limiting groove.

[0012] As a further description of the above technical solution: a sealing film is connected to the inner wall of the iron tank.

[0013] Compared with the prior art, the advantages of the present utility model are as follows:

[0014] In the present utility model, sealing is achieved by threadedly connecting a sealing cover to the top of the pipeline. Meanwhile, a limiting component is provided to improve the stability of the sealing cover and prevent loosening of the sealing cover during transportation, which may cause leakage. Moreover, an expansion airbag is provided to cope with the increase in the internal air pressure of the isobutyraldehyde tank. When the air pressure is normal, the expansion airbag occupies a small space under the pressing of the pressing plate. When the air pressure increases and starts to expand the storage space, the expansion airbag can expand to play a pressure relief role. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 is a partial cross-sectional structural schematic diagram of the present utility model;

[0017] Figure 3 In the present utility model Figure 2 is an enlarged structural schematic diagram of part A;

[0018] Figure 4 is a cross-sectional structural schematic diagram of the mounting seat of the present utility model.

[0019] Description of the reference numerals in the drawings:

[0020] 1, wooden outer shell; 2, iron tank; 3, pipeline; 4, sealing cover; 5, limiting component; 501, mounting cylinder; 502, bent rod; 503, second spring; 6, mounting seat; 7, expansion airbag; 8, pressing plate; 9, through groove; 10, sealing cylinder; 11, first spring; 12, telescopic sleeve; 13, sealing plug; 14, limiting groove; 15, sealing film. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0022] Please refer to Figures 1 to 4, in the present utility model, a closed isobutyraldehyde storage tank includes a wooden outer shell 1. An iron tank 2 is fixedly installed on the inner wall of the wooden outer shell 1. A pipe 3 is fixedly connected to the inner top wall of the iron tank 2. The top end of the pipe 3 penetrates and extends to the top of the wooden outer shell 1. A sealing cover 4 is threadedly connected to the top of the pipe 3. A limiting component 5 is arranged on the sealing cover 4. An installation seat 6 is fixedly connected to the inner top wall of the iron tank 2. An expansion airbag 7 is fixedly installed on the inner wall of the installation seat 6. The top end of the expansion airbag 7 penetrates and extends to the top of the wooden outer shell 1. A pressing plate 8 is fixedly connected to the top of the expansion airbag 7. The pressing plate 8 is slidably connected to the top of the wooden outer shell 1. A through groove 9 is opened at the bottom of the installation seat 6. A sealing cylinder 10 is slidably connected to the inner wall of the installation seat 6. The sealing cylinder 10 is located above the through groove 9 and fits with the inner wall of the installation seat 6. A first spring 11 is fixedly connected to the inner wall of the installation seat 6. The top end of the first spring 11 is fixedly connected to the sealing cylinder 10.

[0023] The limiting component 5 includes an installation cylinder 501. The installation cylinder 501 is fixedly connected to the top of the sealing cover 4. The bottom end of the installation cylinder 501 penetrates the sealing cover 4 and extends to the inside of the pipe 3. Two bent rods 502 are slidably connected to the inner wall of the installation cylinder 501. A second spring 503 is fixedly connected to the bent rod 502. The other end of the second spring 503 is fixedly connected to the inner wall of the installation cylinder 501. One end of the bent rod 502 located inside the pipe 3 contacts the pipe 3. The other end of the bent rod 502 penetrates and extends to the outside of the installation cylinder 501.

[0024] Limiting grooves 14 are evenly distributed on the inner wall of the pipe 3. One end of the bent rod 502 located inside the pipe 3 is located inside the limiting groove 14.

[0025] During the injection of isobutyraldehyde, it is filled through pipeline 3 until the liquid level of isobutyraldehyde is about to fit pipeline 3. Subsequently, after the filling is completed, the user needs to connect the sealing cap 4 to the top of pipeline 3. After the user holds the installation cylinder 501, the two bending rods 502 are simultaneously pressed into the installation cylinder 501. At this time, the second spring 503 is compressed by the pressure and generates an opposite reaction force. As the bending rods 502 enter the installation cylinder 501, the user can snap the sealing cap 4 onto the top of pipeline 3 and then rotate the sealing cap 4, which is threadedly connected to its top. After it is fully tightened, the user releases the bending rods 502. At this time, the bottom end of the bending rods 502 is at the same height as the limiting groove 14, and the bending rods 502 enter the limiting groove 14 to limit the sealing cap 4. During storage, the sealing cap 4 is not likely to loosen and cause leakage. At the same time, if the pressure increases during storage or transportation, at this time, the pressure is applied to the bottom of the sealing cylinder 10 to push the sealing cylinder 10 upward. The first spring 11 is stretched accordingly, and the through groove 9 is exposed. Part of the air flow enters the mounting seat 6 through the through groove 9 and enters the expansion airbag 7, causing the airbag to start expanding. When the pressure drops, the potential energy of the first spring 11 rebounding is greater than the air pressure at the bottom, so that the sealing cylinder 10 seals the through groove 9 to continue to achieve storage. When isobutyraldehyde needs to be used, the user presses the bending rods 502 to separate the bending rods 502 from the limiting groove 14, and then the sealing cap 4 can be rotated to open pipeline 3.

[0026] In the present utility model, the sealing is achieved by threadedly connecting the sealing cap 4 to the top of pipeline 3. At the same time, the limiting component 5 is provided to improve the stability of the sealing cap 4 and prevent the sealing cap 4 from loosening and causing leakage during transportation. And by setting the expansion airbag 7 to cope with the increase in the internal air pressure of the isobutyraldehyde tank, the expansion airbag 7 occupies a small space under the pressure of the pressing plate 8 when the air pressure is normal, and can expand when the air pressure increases to start expanding the storage space, thereby playing a role in pressure relief.

[0027] Please refer to Figure 1 and 2 , in which: the top of the wooden shell 1 is fixedly connected with a telescopic sleeve 12, and the top of the telescopic sleeve 12 is fixedly installed at the bottom of the pressing plate 8.

[0028] In the present utility model, the setting of the telescopic sleeve 12 can restrict the pressing plate 8, so that the pressing plate 8 always maintains a stable movement in the vertical direction, so as to ensure that the bottom expansion airbag 7 expands in a normal trend.

[0029] Please refer to Figure 2 and 4 , in which: the bottom of the sealing cylinder 10 is fixedly connected with a sealing plug 13, and the sealing plug 13 is located inside the through groove 9 and contacts the inner wall of the through groove 9.

[0030] In the present utility model, the sealing plug 13 can improve the sealing effect of the sealing cylinder 10 on the through groove 9, and avoid leakage of the through groove 9 during the filling of isobutyraldehyde, so that the internal pressure of the expansion airbag 7 affects subsequent use.

[0031] Please refer to Figure 2 , wherein: a sealing film 15 is connected to the inner wall of the iron tank body 2.

[0032] In the present utility model, the sealing film 15 can achieve a sealing effect and also avoid continuous contact between isobutyraldehyde and the iron tank body 2, thereby causing corrosion to it.

[0033] The above is only the preferred specific implementation manner of the present utility model; however, the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and its improved concept of the present utility model, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A closed isobutyraldehyde storage tank, comprising a wooden outer shell (1), characterized in that: An iron tank (2) is fixedly installed on the inner wall of the wooden shell (1). A pipe (3) is fixedly connected to the inner top wall of the iron tank (2). The top end of the pipe (3) penetrates and extends to the top of the wooden shell (1). A sealing cover (4) is threadedly connected to the top of the pipe (3). A limiting component (5) is arranged on the sealing cover (4). An installation seat (6) is fixedly connected to the inner top wall of the iron tank (2). An expansion airbag (7) is fixedly installed on the inner wall of the installation seat (6). The top end of the expansion airbag (7) penetrates and extends to the top of the wooden shell (1). A pressing plate (8) is fixedly connected to the top of the expansion airbag (7). The pressing plate (8) is slidably connected to the top of the wooden shell (1). A through groove (9) is formed at the bottom of the installation seat (6). A sealing cylinder (10) is slidably connected to the inner wall of the installation seat (6). The sealing cylinder (10) is located at the top of the through groove (9) and fits with the inner wall of the installation seat (6). A first spring (11) is fixedly connected to the inner wall of the installation seat (6). The top end of the first spring (11) is fixedly connected to the sealing cylinder (10).

2. The closed isobutyraldehyde storage tank according to claim 1, characterized in that: A telescopic sleeve (12) is fixedly connected to the top of the wooden shell (1). The top of the telescopic sleeve (12) is fixedly installed at the bottom of the pressing plate (8).

3. A closed isobutyraldehyde storage tank according to claim 1, characterized in that: A sealing plug (13) is fixedly connected to the bottom of the sealing cylinder (10). The sealing plug (13) is located inside the through groove (9) and contacts the inner wall of the through groove (9).

4. A closed isobutyraldehyde storage tank according to claim 1, characterized in that: The limiting component (5) includes an installation cylinder (501). The installation cylinder (501) is fixedly connected to the top of the sealing cover (4). The bottom end of the installation cylinder (501) penetrates the sealing cover (4) and extends into the pipe (3). Two bent rods (502) are slidably connected to the inner wall of the installation cylinder (501). A second spring (503) is fixedly connected to the bent rod (502). The other end of the second spring (503) is fixedly connected to the inner wall of the installation cylinder (501). One end of the bent rod (502) located inside the pipe (3) contacts the pipe (3). The other end of the bent rod (502) penetrates and extends to the outside of the installation cylinder (501).

5. The closed isobutyraldehyde storage tank according to claim 4, characterized in that: Uniformly distributed limiting grooves (14) are formed on the inner wall of the pipe (3). One end of the bent rod (502) located inside the pipe (3) is located inside the limiting groove (14).

6. A closed isobutyraldehyde storage tank according to claim 4, characterized in that: A sealing film (15) is connected to the inner wall of the iron tank (2).

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