Explosion-proof structure of CS2 liquid sulfur recovery system

Abstract

The utility model relates to the technical field of CS2 liquid sulfur recovery, in particular to an explosion-proof structure of a CS2 liquid sulfur recovery system, and solves the problems that most of transmission pipeline connecting structures in the current market in the prior art emphasizes on improving the convenience and strength of connection, and a traditional sealing gasket material cannot be used for sealing after being in contact with corrosive media such as CS2 for a long time. And the sealing performance is reduced due to aging and deformation, so that leakage is caused. The explosion-proof structure of the CS2 liquid sulfur recovery system comprises two transmission pipelines, and the outer rings of the two transmission pipelines are sleeved with flange pieces. According to the utility model, when two transmission pipelines for CS2 liquid sulfur recovery are butted by personnel, the personnel can ensure the explosion-proof performance at the joint of the transmission pipelines between the two transmission pipelines through the action of the structure, so that the use safety between the transmission pipelines is improved, and the potential safety hazard in the working environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of CS2 liquid sulfur recovery, in particular to an explosion-proof structure of a CS2 liquid sulfur recovery system. Background Technique

[0002] In the chemical industry, especially in the production process involving CS2 (carbon disulfide) liquid sulfur recovery systems, safety issues are always of utmost importance. As a chemical substance with flammable and explosive properties, CS2 requires special attention to explosion-proof safety during storage, transportation, and recovery.

[0003] Most of the existing transmission pipeline connection structures on the market focus on improving the convenience and strength of the connection. After long-term contact with corrosive media such as CS2, traditional gasket materials are prone to aging and deformation, resulting in a decline in sealing performance and subsequent leakage. In addition, the simple bolt fastening method is difficult to fully resist the impact of external pressure changes and medium shocks on the connection stability, posing potential safety hazards. Therefore, an explosion-proof structure of a CS2 liquid sulfur recovery system is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an explosion-proof structure of a CS2 liquid sulfur recovery system, which solves the problems in the existing technology that most of the existing transmission pipeline connection structures on the market focus on improving the convenience and strength of the connection. After long-term contact with corrosive media such as CS2, traditional gasket materials are prone to aging and deformation, resulting in a decline in sealing performance and subsequent leakage. In addition, the simple bolt fastening method is difficult to fully resist the impact of external pressure changes and medium shocks on the connection stability, posing potential safety hazards.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An explosion-proof structure of a CS2 liquid sulfur recovery system includes two transmission pipelines. Flange plates are sleeved on the outer circles of the two transmission pipelines. An outer shell is arranged between the two flange plates. An annular airbag is arranged in the sandwich inner cavity of the outer shell. One side of the annular airbag is fixedly connected with an air inlet pipe penetrating through the side wall of the outer shell. A plurality of through holes are formed in the inner surface wall of the outer shell, and an extension rod is arranged in the inner cavity of the through hole. One end of the extension rod passes through the through hole and is fixedly connected with the outer wall of the adjacent annular airbag. A graphite gasket is arranged in the inner cavity of the outer shell, and one end of the extension rod abuts against the outer surface wall of the adjacent graphite gasket.

[0007] Preferably, the two flange plates are fixedly connected by a plurality of screws, and a nut is sleeved on the outer side of the screw. One end of the nut abuts against one end of the adjacent flange plate.

[0008] Preferably, the inner cavity of the intake pipe is communicated with the inner cavity of the annular airbag, and one end of the intake pipe is detachably connected with a sealing plug.

[0009] Preferably, one ends of the two transmission pipes are both located in the inner cavity of the graphite gasket, and the inner ring of the graphite gasket is attached to the outer ring of the adjacent transmission pipe.

[0010] Preferably, the length of the extension rod is adapted to the depth of the inner cavity of the corresponding through hole.

[0011] Preferably, the outer wall of the annular airbag is fixedly connected to the inner wall of the interlayer of the adjacent housing.

[0012] The utility model has at least the following beneficial effects:

[0013] This design ingeniously integrates explosion-proof performance into the pipeline connection. Through the interaction of carefully arranged components, it ensures that the connection of the transmission pipeline can still maintain a highly stable sealing performance and pressure resistance under harsh working conditions. This not only greatly improves the overall explosion-proof ability of the pipeline system, but also effectively reduces the risk of safety accidents caused by potential problems such as leakage and loosening, creating a safer and more reliable working environment for the CS2 liquid sulfur recovery operation. In addition, this design also simplifies the docking process and reduces the operation difficulty, enabling personnel to handle these high-risk chemical materials more calmly, further ensuring the safety and health of the staff.

[0014] The utility model also has the following beneficial effects:

[0015] By introducing a sealing mechanism combining a graphite gasket and an annular airbag, the present invention significantly enhances the explosion-proof performance of the connection of the transmission pipeline in the CS2 liquid sulfur recovery system. The graphite gasket, with its excellent corrosion resistance and sealing performance, effectively prevents medium leakage; and the inflation and expansion of the annular airbag further compresses the gasket to form multiple protective layers, which can maintain a stable sealing effect even under extreme working conditions such as high pressure or temperature fluctuations, thus greatly reducing the risk of explosion accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is a schematic structural diagram of the transmission pipeline of the present invention;

[0019] Figure 3 Schematic diagram of the flange structure of the present utility model;

[0020] Figure 4 Schematic diagram of the extension rod structure of the present utility model;

[0021] Figure 5 Schematic diagram of the housing structure of the present utility model.

[0022] In the figure: 1, transmission pipeline; 2, nut; 3, flange; 4, screw; 5, housing; 6, extension rod; 7, intake pipe; 8, graphite gasket; 9, annular airbag; 10, sealing plug. Specific implementation mode

[0023] In order to make the purpose, technical solution and advantages of the present utility model clearer, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] Refer to Figures 1-5 , an explosion-proof structure of a CS2 liquid sulfur recovery system, including two transmission pipelines 1, flange plates 3 are sleeved on the outer circles of the two transmission pipelines 1, a housing 5 is arranged between the two flange plates 3, an annular airbag 9 is arranged in the sandwich inner cavity of the housing 5, one side of the annular airbag 9 is fixedly connected with an intake pipe 7 penetrating through the side wall of the housing 5, a plurality of through holes are opened on the inner surface wall of the housing 5, and an extension rod 6 is arranged in the inner cavity of the through holes. One end of the extension rod 6 passes through the through hole and is fixedly connected with the outer wall of the adjacent annular airbag 9. A graphite gasket 8 is arranged in the inner cavity of the housing 5. One end of the extension rod 6 abuts against the outer surface wall of the adjacent graphite gasket 8. Specifically, the expansion of the annular airbag 9 not only enhances the sealing effect, but also drives the extension rod 6 to displace outward, so as to stably limit the graphite gasket 8 and the transmission pipeline 1. This structural design effectively prevents the pipeline from loosening or misaligning due to factors such as vibration and impact, ensuring the long-term stability and reliability of the connection of the transmission pipeline 1. The connection structure of the present invention simplifies the docking process, and the operator can quickly complete the docking and sealing of the transmission pipeline 1 without complex tools. At the same time, due to the significant improvement of the sealing performance, the safety hazards caused by leakage are reduced, providing a safer working environment for the operator. In addition, the structural design is reasonable, easy to maintain, and reduces the maintenance cost and time.

[0025] This solution has the following working process:

[0026] When personnel need to dock two transfer pipes 1, they can first put the graphite gasket 8 on one of the transfer pipes 1, making one end of the graphite gasket 8 abut against one end of the adjacent flange 3. Then the personnel put the outer shell 5 on the outer circle of the graphite gasket 8. Subsequently, the personnel insert one end of the other transfer pipe 1 into the inner cavity of the graphite gasket 8, so that the ends of the two transfer pipes 1 correspond to each other, thus achieving a fitting effect. The personnel use an air injection device to inject air into the air inlet pipe 7, so that the gas enters the inside of the annular airbag 9. When the annular airbag 9 expands, the annular airbag 9 will drive the corresponding extension rod 6 to displace outward along the corresponding through hole, so as to achieve the effect of squeezing the outer wall of the graphite gasket 8, which helps to stably limit the two transfer pipes 1 and the graphite gasket 8, thus ensuring the stability of the connection between the two transfer pipes 1. Finally, the personnel stably connect the two flanges 3 through the screws 4 and nuts 2.

[0027] According to the above working process, it can be known that:

[0028] Through the structural design, when personnel dock two transfer pipes 1 for CS2 liquid sulfur recovery, the structure can ensure the explosion-proof performance at the connection of the transfer pipes 1 between the two transfer pipes 1, improve the use safety between the transfer pipes 1, and reduce the potential safety hazards in the working environment.

[0029] Furthermore, the two flanges 3 are fixedly connected by a plurality of screws 4, and a nut 2 is sleeved on one side of the outer circle of the screw 4. One end of the nut 2 abuts against one end of the adjacent flange 3. Specifically, through the cooperation setting of the screw 4 and the nut 2, after the two flanges 3 are closely fitted, the nut 2 is rotated to make it closely fit with the flange 3, so as to firmly connect the two flanges 3 together by the tightening force of the screw 4. During installation, first align and fit the flanges 3, then pass the screw 4 through the reserved hole of the flange 3, and rotate the nut 2 until it closely fits the flange 3 to complete the tightening. This enhances the mechanical strength at the connection of the two transfer pipes 1, prevents the connection from loosening due to external pressure or vibration, and further ensures the stability and safety of the connection.

[0030] Furthermore, the inner cavity of the intake pipe 7 is in communication with the inner cavity of the annular airbag 9. One end of the intake pipe 7 is detachably connected with a sealing plug 10. Specifically, through the communication setting of the intake pipe 7 and the annular airbag 9, and the design of the sealing plug 10 at the end of the intake pipe 7, it allows the operator to inject gas into the annular airbag 9 through the intake pipe 7 to achieve its inflation and compression of the graphite gasket 8. After installation, remove the sealing plug 10, inject gas into the annular airbag 9 through the intake pipe 7. After it expands to an appropriate degree, reinstall the sealing plug 10 to maintain the air pressure. It provides a convenient sealing and compressing method, which can achieve an efficient sealing effect without additional tools, and is also convenient for subsequent maintenance and repair.

[0031] Furthermore, one end of each of the two transmission pipes 1 is located in the inner cavity of the graphite gasket 8, and the inner ring of the graphite gasket 8 is in contact with the outer ring of the adjacent transmission pipe 1. Specifically, through the material and structure design of the graphite gasket 8, it can closely adhere to the connection of the two transmission pipes 1 to form an effective sealing barrier. When connecting the transmission pipes 1, first put the graphite gasket 8 on one of the transmission pipes 1, and then insert the other transmission pipe 1 into the graphite gasket 8 to make them closely adhere. It improves the sealing performance at the connection of the transmission pipes 1, effectively prevents the leakage of corrosive media such as CS2 liquid sulfur, and enhances the safety and reliability of the system.

[0032] Furthermore, the length of the extension rod 6 is adapted to the depth of the inner cavity of the corresponding through hole. Specifically, by designing the length of the extension rod 6, it can be completely inserted into the through hole and smoothly displace outward when the annular airbag 9 expands, thereby effectively squeezing the graphite gasket 8. When the annular airbag 9 is inflated and expands, its outer wall pushes the extension rod 6 to move outward along the through hole, and then squeezes the graphite gasket 8 to achieve a tighter seal. It ensures the smooth movement of the extension rod 6 during the inflation process of the annular airbag 9, avoids the occurrence of jamming phenomena, and improves the stability and reliability of the sealing effect.

[0033] Furthermore, the outer wall of the annular airbag 9 is fixedly connected to the inner wall of the interlayer of the adjacent outer shell 5. Specifically, by fixedly connecting the annular airbag 9 to the inner wall of the interlayer of the outer shell 5, it ensures the stability of the annular airbag 9 during the inflation process and prevents it from shifting or deforming. During the installation process, the annular airbag 9 is pre-fixed on the inner wall of the interlayer of the outer shell 5, and then subsequent assembly and inflation operations are carried out. It enhances the support and fixing effect of the annular airbag 9, avoids the displacement or damage caused by the inflation pressure, and ensures the stability and durability of the entire sealing structure.

[0034] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification is only the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof structure of a CS2 liquid sulfur recovery system, comprising two transmission pipelines (1), characterized in that: The outer rings of the two transmission pipes (1) are both sleeved with flanges (3), an outer shell (5) is arranged between the two flanges (3), an annular airbag (9) is arranged in the inner cavity of the interlayer of the outer shell (5), one side of the annular airbag (9) is fixedly connected with an air intake pipe (7) penetrating the side wall of the outer shell (5), the inner surface wall of the outer shell (5) is provided with a plurality of through holes, and the inner cavity of the through hole is provided with an extension rod (6), one end of the extension rod (6) passes through the through hole and is fixedly connected to the outer wall of the adjacent annular airbag (9), the inner cavity of the outer shell (5) is provided with a graphite sealing gasket (8), and one end of the extension rod (6) is against the outer wall of the adjacent graphite sealing gasket (8).

2. The explosion-proof structure of a CS2 liquid sulfur recovery system according to claim 1 is characterized in that: The two flanges (3) are fixedly connected by a plurality of screws (4), and a nut (2) is sleeved on one side of the outer ring of the screw (4), and one end of the nut (2) is fitted with one end of the adjacent flange (3).

3. The explosion-proof structure of a CS2 liquid sulfur recovery system according to claim 1 is characterized in that: The inner cavity of the air intake pipe (7) is in communication with the inner cavity of the annular airbag (9), and a sealing plug (10) is detachably connected to one end of the air intake pipe (7).

4. The explosion-proof structure of a CS2 liquid sulfur recovery system according to claim 1 is characterized in that: One end of each of the two transmission pipes (1) is located in the inner cavity of the graphite sealing gasket (8), and the inner ring of the graphite sealing gasket (8) fits with the outer ring of the adjacent transmission pipe (1).

5. The explosion-proof structure of a CS2 liquid sulfur recovery system according to claim 1 is characterized in that: The length of the extension rod (6) is adapted to the inner cavity depth of the corresponding through hole.

6. The explosion-proof structure of a CS2 liquid sulfur recovery system according to claim 1 is characterized in that: The outer wall of the annular airbag (9) is fixedly connected to the inner wall of the sandwich layer of the adjacent outer shell (5).

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