Purifying and drying device for high-purity acetylene production

Abstract

The utility model belongs to the technical field of purification and drying, and particularly relates to a purification and drying device for high-purity acetylene production, which comprises an input pipe, one end of the input pipe is fixedly connected with a pair of communicating pipes which are symmetrically distributed; one end of the communicating pipe is fixedly connected with a filter pipe; one end of the filter pipe is fixedly connected with an output pipe through a flange; a molecular sieve is arranged at one end of the filter pipe through a clamping piece; first valves are mounted on the outer circular walls, close to the input pipe, of the communicating pipes; second valves are mounted at the ends, close to the output pipe, of the filter pipes; the outer circular wall of the communicating pipe is fixedly connected with a keel; compared with the prior art, stability and continuity of the production process are guaranteed, production efficiency is improved, and when one molecular sieve needs to be replaced or maintained, the other molecular sieve can continue to work, so that downtime of the whole system is shortened, production cost can be reduced, and production delay possibly caused by downtime is reduced.

Description

Technical Field

[0001] This utility model relates to the field of purification and drying technology, specifically a purification and drying device for the production of high-purity acetylene. Background Technology

[0002] Acetylene is a colorless gas with a pungent odor. It has a high combustion temperature and strong reducing properties. The presence of moisture increases the instability of acetylene, making it prone to spontaneous combustion and explosion. Therefore, strict drying treatment is necessary during the production and storage of acetylene. Physical adsorption drying is a commonly used method for drying acetylene. It utilizes materials with special pore structures (such as molecular sieves) to adsorb moisture from the acetylene. In an acetylene drying device, acetylene is passed through a drying device equipped with molecular sieves. Through physical adsorption, the moisture in the acetylene is adsorbed onto the molecular sieves, thereby achieving the drying of acetylene.

[0003] Molecular sieves play a crucial role in the production process of high-purity acetylene. However, as the service life of molecular sieves increases, their adsorption performance gradually declines, affecting the purification and drying effect. Therefore, after prolonged operation, molecular sieves need to be replaced. Replacing molecular sieves usually requires shutting down the equipment to stop the input of the substance being processed, which will lead to production interruption and reduce production efficiency. Therefore, a purification and drying device for the production of high-purity acetylene is proposed to address the above problems. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, molecular sieves play a crucial role in the production process of high-purity acetylene. However, as the service life of molecular sieves increases, their adsorption performance gradually declines, affecting the purification and drying effect. Therefore, after long-term operation, molecular sieves need to be replaced. Replacing molecular sieves usually requires shutting down the equipment to stop the input of the substance being processed, which leads to production interruption and reduces production efficiency. This invention proposes a purification and drying device for the production of high-purity acetylene.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A purification and drying device for the production of high-purity acetylene, comprising an input pipe; a pair of symmetrically distributed connecting pipes fixedly connected to one end of the input pipe; a filter pipe fixedly connected to one end of the connecting pipe; an output pipe fixedly connected to one end of the filter pipe via a flange; a molecular sieve provided at one end of the filter pipe via a locking component; a first valve installed on the outer wall of each pair of connecting pipes near the input pipe; a second valve installed on the end of each pair of filter pipes near the output pipe; and a keel fixedly connected to the outer wall of the connecting pipes. When one molecular sieve needs to be replaced or maintained, the other molecular sieve can continue to operate, thereby reducing the downtime of the entire system, helping to reduce production costs, and reducing production delays that may be caused by downtime.

[0006] Preferably, the locking component includes a circular block; a circular block is placed at one end of the filter tube; the outer circular wall of the circular block is provided with multiple sets of sliding grooves; a locking block is slidably connected to the groove wall of the sliding groove; a spring is fixedly connected between the locking block and the sliding groove; the outer circular wall of the filter tube is provided with multiple sets of locking slots; the locking slots match the locking blocks; a molecular sieve is provided on the side wall of the circular block. The simplified installation steps of the molecular sieve can significantly reduce the time and labor costs required for installation and improve the overall work efficiency.

[0007] Preferably, a filter frame is fixed to the side wall of the circular block; a molecular sieve is fixed to the bottom of the filter frame. Through the pretreatment of the filter frame, it can be ensured that the acetylene entering the molecular sieve is purer, thereby improving the efficiency and lifespan of the molecular sieve.

[0008] Preferably, the side wall of the card block is provided with a first inclined surface; the top of the card block is provided with a second inclined surface; the outer circular wall of the filter tube is rotatably connected to a rotating ring; the outer circular wall of the rotating ring is provided with a limiting groove; the limiting groove matches the card block, and the card block will be retracted into the sliding groove, so that the operator can easily extract the molecular sieve from the filter tube.

[0009] Preferably, the inlet of the filter tube is rounded; the bottom of the locking block is provided with a third inclined surface, which facilitates the operation steps of the operator in installing the molecular sieve.

[0010] Preferably, the outer circular wall of the rotating ring is fixed with a ring handle, which makes it easier for workers to hold and rotate it, reducing hand fatigue and making the operation smoother and faster.

[0011] The advantages of this utility model are:

[0012] 1. By using the locking mechanism, the molecular sieve is removed from the pipeline for replacement. In this way, the two molecular sieves work alternately, and the acetylene drying process can continue without interruption due to molecular sieve replacement. This ensures the stability and continuity of the production process, improves production efficiency, and allows the other molecular sieve to continue working while one needs to be replaced or maintained. This reduces the downtime of the entire system, helps to reduce production costs, and minimizes production delays that may be caused by downtime.

[0013] 2. The simplified installation steps of molecular sieves can significantly reduce the time and labor costs required for installation and improve overall work efficiency. Through the pretreatment of the filter frame, it can be ensured that the acetylene entering the molecular sieve is purer, thereby improving the efficiency and life of the molecular sieve. The clip will be returned to the chute, so that the staff can easily extract the molecular sieve from the filter tube, which simplifies the operation steps of the staff installing the molecular sieve. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a three-dimensional sectional view of a utility model.

[0018] Figure 4 for Figure 3 Enlarged view of section B in the middle.

[0019] In the diagram: 1. Input pipe; 2. Connecting pipe; 3. Filter pipe; 4. Output pipe; 5. Molecular sieve; 6. First valve; 7. Second valve; 8. Keel; 9. Circular block; 10. Slide groove; 11. Locking block; 12. Locking groove; 13. Filter frame; 14. Rotating ring; 15. Limiting groove; 16. Ring handle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figure 1-4 As shown, a purification and drying device for the production of high-purity acetylene includes an input pipe 1; a pair of symmetrically distributed connecting pipes 2 are fixedly connected to one end of the input pipe 1; a filter pipe 3 is fixedly connected to one end of the connecting pipe 2; an output pipe 4 is fixedly connected to one end of the filter pipe 3 via a flange; a molecular sieve 5 is provided at one end of the filter pipe 3 via a locking component; a first valve 6 is installed on the outer wall of each pair of connecting pipes 2 near the input pipe 1; a second valve 7 is installed on the end of each pair of filter pipes 3 near the output pipe 4; a keel 8 is fixedly connected to the outer wall of the connecting pipe 2; during operation, acetylene gas is input into the connecting pipe 2 through the input pipe 1, thereby the acetylene gas enters the molecular sieve 5 of the filter pipe 3 for purification and drying, and the purified acetylene gas is discharged and collected from the output pipe 4. The function of the keel 8 is to fix the connecting pipe 2 to the wall. When replacing the molecular sieve 5, the first valve 6 and the second valve 7 on the pipe where it is located are closed by rotating the keel. Then, the first valve 6 and the second valve 7 on the pipe where the other molecular sieve 5 is located are opened. Through the action of the locking component, the molecular sieve 5 is taken out of the pipe for replacement. In this way, the two molecular sieves 5 work alternately, and the acetylene drying process can continue without interruption due to the replacement of molecular sieve 5. This ensures the stability and continuity of the production process, improves production efficiency, and allows the other molecular sieve 5 to continue working when one molecular sieve 5 needs to be replaced or maintained, thereby reducing the downtime of the entire system, helping to reduce production costs, and reducing production delays that may be caused by downtime.

[0022] The locking component includes a circular block 9; one end of the filter tube 3 is placed with the circular block 9; the outer circular wall of the circular block 9 is provided with multiple sets of sliding grooves 10; the groove wall of the sliding groove 10 is slidably connected with a locking block 11; a spring is fixedly connected between the locking block 11 and the sliding groove 10; the outer circular wall of the filter tube 3 is provided with multiple sets of locking slots 12; the locking slots 12 match the locking blocks 11; the side wall of the circular block 9 is provided with a molecular sieve 5; during operation, the locking block 11 slides in the sliding groove 10, so that one end of the locking block 11 will enter the locking slot 12. In this way, when the molecular sieve 5 is installed, the locking block 11 can enter the locking slot 12 by the elastic force of the spring, so that the circular block 9 is limited in the filter tube 3, so that the molecular sieve 5 can be installed in the filter tube 3. The installation process is simple and direct and can be completed quickly. The simple installation steps of the molecular sieve 5 can significantly reduce the time and labor costs required for installation and improve the overall work efficiency.

[0023] A filter frame 13 is fixedly connected to the side wall of the circular block 9; a molecular sieve 5 is fixedly connected to the bottom of the filter frame 13. During operation, the filter frame 13 between the circular block 9 and the molecular sieve 5 can filter out larger particulate impurities present in acetylene, preventing impurities from directly entering the molecular sieve 5 and clogging the pores of the molecular sieve 5, thereby reducing its adsorption efficiency and even shortening the service life of the molecular sieve 5. Through the pretreatment of the filter frame 13, it can be ensured that the acetylene entering the molecular sieve 5 is purer, thereby improving the efficiency and lifespan of the molecular sieve 5.

[0024] The side wall of the locking block 11 is provided with a first inclined surface; the top of the locking block 11 is provided with a second inclined surface; the outer circular wall of the filter tube 3 is rotatably connected to a rotating ring 14; the outer circular wall of the rotating ring 14 is provided with a limiting groove 15; the limiting groove 15 matches the locking block 11; during operation, the rotating ring 14 rotates on the filter tube 3, and when the locking block 11 extends into the locking groove 12, one end of the locking block 11 also extends into the limiting groove 15 of the rotating ring 14. When the molecular sieve 5 needs to be replaced, the operator can... Rotating the rotating ring 14 causes the limiting groove 15 on the rotating ring 14 to press against the first inclined surface on the side wall of the locking block 11, causing the locking block 11 to be pressed back into the locking groove 12. At this time, part of the second inclined surface of the locking block 11 has entered the filter tube 3. When the force brought by the operator pulling the circular block 9 reaches a certain level, the second inclined surface of the locking block 11 presses against the side wall of the locking groove 12, and the locking block 11 will be pushed back into the sliding groove 10, so that the operator can easily extract the molecular sieve 5 from the filter tube 3.

[0025] The opening of the filter tube 3 is rounded; the bottom of the locking block 11 is provided with a third inclined surface. During operation, through the rounded corner on the opening and the third inclined surface on the bottom of the locking block 11, when the operator installs the molecular sieve 5, the third inclined surface of the locking block 11 will be squeezed into the slide groove 10 by the rounded corner of the opening, thereby facilitating the entry of the circular block 9 into the filter tube 3. When the slide groove 10 corresponds to the locking groove 12, the locking block 11 will enter the locking groove 12 for fixing by the elastic force of the spring, which facilitates the operator's operation steps for installing the molecular sieve 5.

[0026] The outer circular wall of the rotating ring 14 is fixedly connected to an annular handle 16; during operation, the annular handle 16 on the rotating ring 14 allows the operator to more easily hold and rotate it, reducing hand fatigue and making the operation smoother and faster.

[0027] The working principle is as follows: Acetylene gas is input into the connecting pipe 2 through the input pipe 1, and then the acetylene gas enters the molecular sieve 5 in the filter pipe 3 for purification and drying. The purified acetylene gas is discharged and collected from the output pipe 4. The connecting pipe 2 can be fixed to the wall by the keel 8. When replacing the molecular sieve 5, the first valve 6 and second valve 7 on the pipe containing the current molecular sieve 5 are closed by rotating the valve. Then, the first valve 6 and second valve 7 on the pipe containing the other molecular sieve 5 are opened. Using the locking mechanism, the molecular sieve 5 is removed from the pipe for replacement. In this way, the two molecular sieves 5 work alternately, and the acetylene drying process can continue without interruption due to molecular sieve replacement. This ensures the stability and continuity of the production process and improves efficiency. In terms of production efficiency, when one molecular sieve 5 needs to be replaced or maintained, the other molecular sieve 5 can continue to work, thereby reducing the downtime of the entire system, helping to reduce production costs, and reducing production delays that may be caused by downtime. The locking block 11 slides within the slide groove 10, so that one end of the locking block 11 enters the locking groove 12. Thus, when the molecular sieve 5 is installed, the locking block 11 can enter the locking groove 12 by the spring force, so that the circular block 9 is limited in the filter tube 3, facilitating the installation of the molecular sieve 5 in the filter tube 3. The installation process is simple and direct, and can be completed quickly. The simplified installation steps of the molecular sieve 5 can significantly reduce the time and labor costs required for installation, improving overall work efficiency. This is achieved through the interaction between the circular block 9 and the molecular sieve 5. The filter frame 13 can filter out larger particulate impurities in acetylene, preventing impurities from directly entering the molecular sieve 5 and clogging its pores, thus reducing its adsorption efficiency and even shortening its service life. Pre-treatment by the filter frame 13 ensures that the acetylene entering the molecular sieve 5 is purer, thereby improving its efficiency and lifespan. The rotating ring 14 rotates on the filter tube 3. When the locking block 11 extends into the locking groove 12, one end of the locking block 11 also extends into the limiting groove 15 of the rotating ring 14. When the molecular sieve 5 needs to be replaced, the operator can rotate the rotating ring 14, causing the limiting groove 15 on the rotating ring 14 to press against the first inclined surface on the side wall of the locking block 11, forcing the locking block 11 back into the locking groove 12. At this point, part of the second inclined surface of the locking block 11 has already entered the filter tube 3. When the force exerted by the operator pulling the circular block 9 reaches a certain level, the second inclined surface of the locking block 11 is pressed against the side wall of the slot 12, and the locking block 11 is pushed back into the slide groove 10. This allows the operator to easily extract the molecular sieve 5 from the filter tube 3. Through the rounded corners on the tube opening and the third inclined surface on the bottom of the locking block 11, when the operator installs the molecular sieve 5, the third inclined surface of the locking block 11 is pressed into the slide groove 10 by the rounded corners of the tube opening, thus facilitating the entry of the circular block 9 into the filter tube 3. When the slide groove 10 corresponds to the slot 12, the locking block 11 will enter the slot 12 for fixation by the spring force, simplifying the operator's operation steps for installing the molecular sieve 5.By rotating the ring handle 16 on the rotating ring 14, the operator can more easily grip and rotate it, reducing hand fatigue and making operation smoother and faster.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A purification and drying apparatus for the production of high-purity acetylene, characterized in that: It includes an input pipe (1); one end of the input pipe (1) is fixedly connected to a pair of symmetrically distributed connecting pipes (2); one end of the connecting pipe (2) is fixedly connected to a filter pipe (3); one end of the filter pipe (3) is fixedly connected to an output pipe (4) via a flange; one end of the filter pipe (3) is provided with a molecular sieve (5) via a locking device; a first valve (6) is installed on the outer circular wall of each pair of connecting pipes (2) near the input pipe (1); a second valve (7) is installed on the end of each pair of filter pipes (3) near the output pipe (4); and a keel (8) is fixedly connected to the outer circular wall of the connecting pipe (2).

2. The purification and drying apparatus for the production of high-purity acetylene according to claim 1, characterized in that: The locking component includes a circular block (9); a circular block (9) is placed at one end of the filter tube (3); the outer circular wall of the circular block (9) is provided with multiple sets of sliding grooves (10); the groove wall of the sliding groove (10) is slidably connected with a locking block (11); a spring is fixed between the locking block (11) and the sliding groove (10); the outer circular wall of the filter tube (3) is provided with multiple sets of locking slots (12); the locking slots (12) match the locking blocks (11); the side wall of the circular block (9) is provided with a molecular sieve (5).

3. A purification and drying apparatus for the production of high-purity acetylene according to claim 2, characterized in that: A filter frame (13) is fixed to the side wall of the circular block (9); a molecular sieve (5) is fixed to the bottom of the filter frame (13).

4. A purification and drying apparatus for the production of high-purity acetylene according to claim 3, characterized in that: The side wall of the card block (11) is provided with a first inclined surface; the top of the card block (11) is provided with a second inclined surface; the outer circular wall of the filter tube (3) is rotatably connected to a rotating ring (14); the outer circular wall of the rotating ring (14) is provided with a limiting groove (15); the limiting groove (15) matches the card block (11).

5. A purification and drying apparatus for the production of high-purity acetylene according to claim 4, characterized in that: The opening of the filter tube (3) is rounded; the bottom of the card block (11) is provided with a third inclined surface.

6. A purification and drying apparatus for the production of high-purity acetylene according to claim 5, characterized in that: The outer circular wall of the rotating ring (14) is fixed with an annular handle (16).

Images