Liquid oxygen gasification safety interlocking device

Abstract

The utility model relates to the technical field of safety interlocking devices, in particular to a liquid oxygen gasification safety interlocking device which comprises a liquid oxygen tank, the upper end face of the liquid oxygen tank is fixedly connected with a protective shell, the lower end face of the protective shell is provided with a limiting hole, the upper end face of the protective shell is rotationally connected with a threaded rod, and the upper end face of the protective shell is provided with a threaded hole. According to the liquid oxygen filling device, before being filled with liquid oxygen, a worker can screw a rotating block to drive a threaded rod to rotate on the inner wall of a threaded hole and move downwards, and the threaded rod drives a first limiting block to slide downwards; the elastic force of the spring to the second limiting plate and the pressure of the second limiting plate to the limiting hole are adjusted to be higher than the normal value pressure in the tank, when the pressure in the liquid gas storage tank is abnormal, the second limiting plate is jacked for pressure relief when the pressure in the tank is higher than the elastic force of the spring, and when the internal pressure is discharged to be smaller than the elastic force of the spring, the second limiting plate is jacked for pressure relief. And the second limiting plate is driven to realize automatic downward pressing under the elastic action of the spring, and the normal state in the tank is recovered.

Description

Technical Field

[0001] The utility model relates to the technical field of safety interlocking devices, in particular to a liquid oxygen gasification safety interlocking device. Background Art

[0002] Patent No. CN218609267U discloses a safety interlocking device for an autoclave reactor. The utility model has a reasonable structural design, and the elastic sealing component can release the blockage of the pressure relief port under the action of the pressure difference, so that the air pressure inside the reactor body can be discharged to the outside through the pressure relief hole, thereby implementing the effect of automatic discharge of the air pressure inside the reactor body.

[0003] However, the above-mentioned existing autoclave safety interlocking device ensures the safety of the reactor body when in use. Through the setting of the telescopic rod, the displacement of the blocking plate can be guided to ensure the stability of the blocking plate when it moves. Through the setting of the shielding component, when the reactor body is operating normally, the shielding plate in the shielding component can correspond to the exhaust unit on the wall of the pressure relief cylinder, and then the pressure relief hole can be effectively shielded to prevent the opening of the pressure relief hole from being exposed to the outside for a long time. However, the telescopic rod of this device drives the blocking plate to move up and down, and the blocking plate is fixedly connected to the internal threaded cylinder. The thread The rod is threadedly connected to the internal threaded tube. The lifting of the sealing plate requires the rotation of the threaded rod to achieve the threaded connection between the threaded rod and the internal threaded tube. The threaded rod is fixedly connected to the movable plate through a rotating column. The rotation of the threaded rod requires the rotation of the movable plate. However, a limiting groove is provided on the surface of the movable plate, and the limiting block is limited on the inner wall of the limiting groove, so that the rotation of the movable plate is restricted, and the threaded connection between the threaded rod and the movable plate cannot be achieved, and the internal threaded tube cannot lift the sealing plate to an excessive distance, and the blocking pressure and pressure discharge cannot be adjusted to the appropriate pressure in the tank.

[0004] In order to solve the above problems, the utility model provides a liquid oxygen gasification safety interlocking device. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a liquid oxygen gasification safety interlock device to solve the technical problems in the prior art that "the baffle plate in the shielding component can correspond to the exhaust unit on the wall of the pressure relief cylinder, and then can effectively shield the pressure relief hole to prevent the opening of the pressure relief hole from being exposed to the outside for a long time, but the telescopic rod of this device drives the sealing plate to move up and down, the sealing plate is fixedly connected to the internal threaded cylinder, the threaded rod is threadedly connected to the internal threaded cylinder, and the lifting of the sealing plate requires the rotation of the threaded rod to realize the threaded connection between the threaded rod and the internal threaded cylinder, the threaded rod is fixedly connected to the movable plate through a rotating column, and the rotation of the threaded rod requires the rotation of the movable plate, but a limiting groove is provided on the surface of the movable plate, and the limiting block is limited on the inner wall of the limiting groove, so that the rotation of the movable plate is restricted, the threaded connection between the threaded rod and the movable plate cannot be realized, the lifting of the sealing plate by the internal threaded cylinder to an excessively high distance cannot be realized, and the blocking pressure and pressure discharge cannot be adjusted to the appropriate pressure in the tank.

[0006] To achieve the above purpose, the utility model is implemented through the following technical scheme: it includes a liquid oxygen tank, the upper end surface of the liquid oxygen tank is fixedly connected with a protective shell, the lower end surface of the protective shell is provided with a limiting hole, the protection can be connected with the inside of the liquid oxygen tank through the limiting hole, the inner wall of the limiting hole is slidably connected with a limiting block, the top end of the limiting block is fixedly connected with a second limiting plate, the upper end surface of the second limiting plate is fixedly connected with a spring, the top end of the spring is fixedly connected with a first limiting plate, the upper end surface of the first limiting plate is rotatably connected with a threaded rod, and the upper end surface of the protective shell is provided with a threaded hole.

[0007] As a preferred technical solution of the utility model, the top end of the threaded rod is fixedly connected with a rotating block, and the upper end surface of the rotating block is provided with a cross groove.

[0008] As a preferred technical solution of the present utility model, the side wall of the first limiting plate is slidably connected to the inner wall of the protective shell, and the side wall of the second limiting plate is slidably connected to the inner wall of the protective shell.

[0009] As a preferred technical solution of the utility model, the spring side wall is slidably connected to the inner wall of the protective shell, and two exhaust holes are provided on the surface of the protective shell.

[0010] As a preferred technical solution of the present utility model, the radius of the first limit plate is consistent with the radius of the spring, and the radius of the second limit plate is consistent with the radius of the spring.

[0011] As a preferred technical solution of the present utility model, the first limiting plate and the second limiting plate have the same shape, and the surface of the threaded rod is threadedly connected to the inner wall of the threaded hole.

[0012] The utility model provides a liquid oxygen gasification safety interlocking device, which has the following beneficial effects:

[0013] The threaded rod is driven to rotate clockwise by the rotating block, and the threaded rod can adjust the relative position of the first limit block in the protective shell. The first limit block squeezes the spring and shrinks it, and the elastic force of the spring squeezing the second limit plate can be adjusted. By adjusting the pressure between the second limit plate and the limit hole, the adjustment of different tank pressures can be realized. When the tank pressure is higher than the pressure of the spring on the second limit plate, the second limit plate can be lifted up to release the pressure, thereby avoiding the potential danger caused by the excessive pressure in the liquid oxygen tank, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the rotating block structure proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the first limit plate structure proposed by the utility model;

[0017] Figure 4 This is a schematic diagram of the second limiting plate structure proposed in the utility model.

[0018] In the figure: 1 liquid oxygen tank, 2 exhaust hole, 3 limit block, 4 spring, 5 first limit plate, 6 second limit plate, 7 rotating block, 8 threaded hole, 9 limit hole, 10 protective shell, 11 threaded rod, 12 cross slot. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the utility model, rather than implying that each embodiment of the utility model must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0021] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments:

[0022] refer to Figure 1-4A liquid oxygen gasification safety interlocking device comprises a liquid oxygen tank 1, a protective shell 10 is fixedly connected to the upper end surface of the movable plate liquid oxygen tank 1, a limiting hole 9 is provided on the lower end surface of the movable plate protective shell 10, the protective shell 10 is connected to the inside of the liquid oxygen tank 1 through the limiting hole 9, the inner wall of the movable plate limiting hole 9 is slidably connected to a limiting block 3, the top of the movable plate limiting block 3 is fixedly connected to a second limiting plate 6, the upper end surface of the second limiting plate 6 of the movable plate is fixedly connected to a spring 4, the top of the movable plate spring 4 is fixedly connected to a first limiting plate 5, the upper end surface of the first limiting plate 5 of the movable plate is rotatably connected to a threaded rod 11, and a threaded hole 8 is provided on the upper end surface of the movable plate protective shell 10.

[0023] By setting the limiting hole 9, the internal pressure of the liquid oxygen pipe is discharged outward by lifting the second limiting plate 6 through the limiting hole 9;

[0024] Furthermore, the top end of the movable plate threaded rod 11 is fixedly connected to the rotating block 7 , and the upper end surface of the movable plate rotating block 7 is provided with a cross groove 12 .

[0025] By setting the rotating block 7, the rotation of the rotating block 7 drives the threaded rod 11 to slide on the inner wall of the threaded hole 8;

[0026] Furthermore, the side wall of the first limiting plate 5 of the movable plate is slidably connected to the inner wall of the protective shell 10 , and the side wall of the second limiting plate 6 of the movable plate is slidably connected to the inner wall of the protective shell 10 .

[0027] By providing the first limiting plate 5 , the first limiting plate 5 limits the expansion distance of the spring 4 inside the protective shell 10 .

[0028] Furthermore, the side wall of the movable plate spring 4 is slidably connected to the inner wall of the protective shell 10 , and two exhaust holes 2 are provided on the surface of the movable plate protective shell 10 .

[0029] By providing the exhaust hole 2 , the excess pressure in the liquid oxygen tank 1 can be discharged out of the tank through the exhaust hole 2 .

[0030] Furthermore, the radius of the first limit plate 5 of the movable plate is consistent with the radius of the spring 4 , and the radius of the second limit plate 6 of the movable plate is consistent with the radius of the spring 4 .

[0031] By providing the spring 4 , the spring 4 applies elastic force to the second limiting plate 6 while the second limiting plate 6 applies pressure to the limiting hole 9 .

[0032] Furthermore, the first limiting plate 5 of the movable plate has the same shape as the second limiting plate 6 , and the surface of the threaded rod 11 of the movable plate is threadedly connected to the inner wall of the threaded hole 8 .

[0033] By providing the second limiting plate 6 , the second limiting plate 6 blocks the pressure inside the tank at the limiting hole 9 .

[0034] When the pressure inside the tank is abnormal, the pressure inside the tank will be higher than the pressure of the spring 4, and the second limit plate 6 will be pushed up to release the pressure.

[0035] Compared with the prior art, the device can adjust the exhaust device in response to different tank internal pressures and is more practical.

[0036] The above movable plate is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A liquid oxygen gasification safety interlock device, comprising a liquid oxygen tank (1), characterized in that: The upper end surface of the liquid oxygen tank (1) is fixedly connected to a protective shell (10), and a limiting hole (9) is provided on the lower end surface of the protective shell (10). The protective shell is connected to the interior of the liquid oxygen tank (1) through the limiting hole (9). The inner wall of the limiting hole (9) is slidably connected to a limiting block (3), and the top end of the limiting block (3) is fixedly connected to a second limiting plate (6), and the upper end surface of the second limiting plate (6) is fixedly connected to a spring (4), and the top end of the spring (4) is fixedly connected to a first limiting plate (5), and the upper end surface of the first limiting plate (5) is rotatably connected to a threaded rod (11), and the upper end surface of the protective shell (10) is provided with a threaded hole (8).

2. A liquid oxygen gasification safety interlock device according to claim 1, characterized in that: The top end of the threaded rod (11) is fixedly connected to a rotating block (7), and the upper end surface of the rotating block (7) is provided with a cross groove (12).

3. A liquid oxygen gasification safety interlock device according to claim 1, characterized in that: The side wall of the first limiting plate (5) is slidably connected to the inner wall of the protective shell (10), and the side wall of the second limiting plate (6) is slidably connected to the inner wall of the protective shell (10).

4. A liquid oxygen gasification safety interlock device according to claim 1, characterized in that: The side wall of the spring (4) is slidably connected to the inner wall of the protective shell (10), and two exhaust holes (2) are provided on the surface of the protective shell (10).

5. A liquid oxygen gasification safety interlock device according to claim 1, characterized in that: The radius of the first limiting plate (5) is consistent with the radius of the spring (4), and the radius of the second limiting plate (6) is consistent with the radius of the spring (4).

6. A liquid oxygen gasification safety interlock device according to claim 1, characterized in that: The first limiting plate (5) and the second limiting plate (6) have the same shape, and the surface of the threaded rod (11) is threadedly connected to the inner wall of the threaded hole (8).

Images